EP2178678B1 - Clamp and method for producing a clamp - Google Patents

Description

The invention relates to a ferrule comprising a slide rail, a fixed bracket, which is fixed to the slide rail and on which a first contact surface is arranged for a workpiece, a sliding bracket, which is displaceable on the slide rail, a housing device, to which a first bearing means and a second bearing device spaced apart from the first bearing device is held, via which the housing device is displaceably guided on the slide rail, wherein the slide bracket is positioned between the first bearing device and the second bearing device, and wherein a second contact surface for a workpiece is arranged on the housing device, which faces the first abutment surface, and a force applying means, which is held on the sliding bar and which acts on a pressure piece, which is held on the housing means.

The invention further relates to a method for producing a ferrule.

From the EP 1 314 515 A2 is a bracket clamp with a guide rail, on which a fixed cross bar is seated, with a sliding bar, which is displaceable on the guide rail and which can be tilted with this, and with a pressurizing spindle with a pressure piece, which is arranged displaceably on the sliding bar, so on a workpiece between the cross bar and sliding bar a compressive force is exercised, known. It is provided a box-shaped mounting element for the sliding bar, which provides a substantially flat contact surface for a workpiece and which is designed such that it can be pushed onto the pressure piece of the sliding bar to hold the Aufsetzelement on the sliding bar and by the Aufsetzelement on a Workpiece on a Druckbeaufschlagungsspindel a compressive force is exercised. The attachment element has at least two spaced guide recesses over which it is displaceably mounted on the guide rail.

From the not pre-published DE 10 2006 008 871 B3 is a workpiece-pressurizing device for a clamping tool known.

From the DE 31 28 023 A1 is a surface exciting screw clamp with a guide rail known.

From the DE 28 44 838 A1 is a screw clamp with a fixed bracket having slide rail according to the introductory part of claim 1 known.

An initially mentioned ferrule is also referred to as a body clamp. The housing device is held on the pressure piece on the slide bracket. The sliding bar can be tilted with the slide rail. It can then exert a compressive force on a workpiece via the housing device with the second contact surface, so that one or more workpieces can be clamped between the first contact surface and the second contact surface.

The invention has for its object to provide a ferrule of the type mentioned, which can be produced in a simple manner.

This object is achieved with the above-mentioned ferrule according to the invention in that the housing device has a first housing part with a housing interior, which has an opening which faces the first contact surface and can be brought into the housing interior via the in the manufacture of the ferrule of the slide and that a second housing part is fixed to the closure of the opening on the housing means.

The ferrule according to the invention can be produced in a simple and cost-effective manner, since it can be mounted in a simple and cost-effective manner. In the open first housing part, the sliding bar can be from the front (on the side which faces the first contact surface). The interior of the housing is closed by the second housing part and an element is provided on which the second contact surface is formed or on which it can be positioned.

It is advantageous if the second housing part is designed as a housing cover. As a result, the housing interior can be closed in a simple manner.

In particular, the second housing part is latched to the housing device and advantageously latched to the first housing part. This makes it easy to produce the ferrule. Just a few simple steps are required to position the housing device with its entire "inner life" on the slide rail.

In particular, the second housing part is at least partially fixed to the first housing part. As a result, the clamp according to the invention can be mounted in a simple manner.

It is favorable if a contact element, on which the second contact surface is formed, is held at least partially on the second housing part. This allows the ferrule to be mounted easily. The housing device can be mounted and closed on the slide rail and the contact element with the second contact surface can then be pushed onto the housing device, for example.

It is particularly advantageous if the first housing part and / or the second housing part are made of a plastic material. As a result, the ferrule can be formed with relatively low weight. Furthermore, the production is simplified. For example, injection-molded parts can be used which are designed such that only a small number of further parts have to be fixed.

It is advantageous if the first housing part has a cross-section of an L-shaped configuration with a longitudinal region which extends along the slide rail and with a transverse region which extends transversely to the slide rail. This makes it possible to realize a displaceability of the sliding bracket between the first bearing device and the second bearing device in the longitudinal region. A fixation area for the pressure piece is provided via the transverse area. As a result, it is possible to exert a clamping force on a workpiece between the first contact surface and the second contact surface via the sliding bar with the force application device and mediate over the pressure element via the housing device.

In particular, the first bearing device and the second bearing device are arranged at the longitudinal region. The slide rail is made through the longitudinal area.

Furthermore, in particular the pressure piece is arranged at the transverse region. As a result, it can be positioned at a distance from the slide rail, so that a compressive force can be exerted on the slide bracket via the force application device and the slide bracket can thereby tilt relative to the slide rail.

It is particularly advantageous if a holding element for holding the first bearing device, the second bearing device and the pressure piece is arranged in the housing interior. The use of such a retaining element results in a stable design of the ferrule, so that it works reliably. Furthermore, the production of the ferrule can be made simple, as a pre-assembly is possible on the holding element and / or individual components can be secured in position without complex fixation operations are necessary.

It is advantageous if the retaining element holds rollers of the first bearing device and the second bearing device. At these roles, the slide is guided displaceably. In particular, the slide rail is slidably guided, it being possible that one or more rollers are rotatable, so that here the displacement guide is a roller slide bearing.

It is favorable if the holding element has recess pairs each with a first recess and an opposite second recess, on each of which a pin is seated. It can thereby fix bearing components on the support member in a simple manner. The pen itself forms a role or he is a carrier for a role.

It is also advantageous if the second housing part has opposite lugs with recesses into which pins of the second bearing device are at least partially immersed. As a result, the second housing part can be securely held on the housing device to close the opening.

Conveniently, the holding element is made of a metallic material. It then has the necessary stability and it can be produced in a simple manner.

For example, the holding element comprises a first leg, a second leg spaced parallel, and at one end face at least one connecting web between the first leg and the second leg. By such a holding element, a gap between the first leg and the second leg is provided, which can accommodate roles of the first bearing means and the second bearing means and through which the slide rail is performed. Furthermore, such a holding element can be inserted via the slide bar in the housing interior. Furthermore, elements can be preassembled on the holding element.

In particular, the first leg and the second leg are each L-shaped and adapted to the shape of the housing device.

It is favorable if the at least one connecting web is positioned in the region of the opening of the first housing part. When a workpiece is clamped, then acts in this area a high force, which is received by the at least one connecting web.

It is also advantageous if the holding element has an open end face, which faces the end face with the at least one connecting web. The holding element can be pushed with the open end face onto a roller holding element. This allows a simple manufacturability of the clamp according to the invention.

It is particularly advantageous if a roller holding element for holding rollers of the first bearing device is arranged in the housing interior. The role holding member serves as an assembly aid during the manufacture of the ferrule. The rollers can be inserted into the roller holding element and positioned correctly in the housing interior via the roller holding element. The sliding bar can be inserted during assembly of the clamp and then the holding element can be inserted. As a result, the first bearing device can be produced and positioned in a simple manner in the housing interior.

In particular, the roller holding element is arranged in the region of a first end face of the first housing part, which faces away from the fixed yoke. Preferably, the roller holding element contacts the corresponding end wall. This results in a simple positioning of the rollers.

It is favorable if a holding element for the first bearing device and the second bearing device is pushed with an open end onto the roller holding element. As a result, the holding element can be aligned with respect to the rollers in a simple manner, so that they can be fixed to the holding element, for example by means of pins. Furthermore, then the role holding element can serve as a positioning aid with the task of a spacer in the housing interior for the holding element. If the retaining element is inserted into the housing interior and pushed onto the roller holding element, then it has automatically reached its correct position in the housing interior.

It is advantageous if the first housing part comprises recesses into which at least partially pins of the first bearing device are immersed. As a result, rollers can be fixed to the housing device in a simple manner. The pins can be dipped from the outside during the manufacture of the ferrule to allow easy manufacture. Furthermore, the first bearing device is securely held on the housing device.

It is particularly advantageous if the first contact surface and the second contact surface are aligned substantially parallel to one another. As a result, one or more workpieces can be clamped between the first contact surface and the second contact surface, wherein the clamping force acts substantially perpendicular to the first contact surface and the second contact surface.

In particular, the first contact surface and the second contact surface are oriented substantially perpendicular to a longitudinal direction of the slide rail. This results in extensive application possibilities for the clamp according to the invention.

In particular, the slide rail is performed by the first abutment surface and the second abutment surface (or an aligned continuation thereof). As a result, the first contact surface and the second contact surface have a closed contact region which extends (at least) as far as the slide rail.

It is favorable if the interior of the housing is closed on an end face opposite the second contact surface except for a recess through which the slide rail has penetrated. As a result, the housing interior is protected from dirt and the like.

For the same reason, it is favorable if the housing interior is closed on a lower side and / or an upper side of the housing device.

Furthermore, it is favorable for the same reason, when the housing interior is closed laterally.

It can be provided that the fixed bracket is slidably mounted lockable on the slide rail. Its position on the slide rail can be adjusted, with each corresponding position being a fixed position.

It is favorable for the production of the clamp when the pressure piece has a holding head receiving space for a holding head of the force application device and at least one locking element for fixing the holding head in the holding head receiving space, wherein the at least one blocking element is arranged in a blocking element receiving space and from the retaining head must be immersed, and wherein the at least one blocking element and the locking element receiving space are formed so that the force required to penetrate the at least one locking element in a direction of insertion of the holding head into the holding head receiving space is smaller than the force required to penetrate in a direction of execution of the holding head out of the holding head receiving space. Such a workpiece pressurizing device is not previously published DE 10 2006 008 871 B3 described, to which reference is expressly made. It can thereby produce the clamp in a simple manner, since the pressure piece on the housing device (for example, a holding element) can be fixed and then easily inserted during manufacture of the holding head, which sits on the Kraftbeaufschlagungseinrichtung. Furthermore, the pressure piece is then firmly and securely fixed to the Kraftbeaufschlagungseinrichtung.

The invention is further based on the object to provide a ferrule of the type mentioned, which has variable uses.

This object is achieved in the above-mentioned ferrule according to the invention that the fixed bracket has at least one blocking element which blocks in a locking position, the mobility of the fixed bracket relative to the slide in at least one direction, and that a loading device is provided by the inclination of at least a blocking element is variable so that the fixed bracket is displaceable on the slide rail for adjusting its position on the slide rail.

In the solution according to the invention, a fixed bracket is provided, which is lockable displaceable on the slide rail. About the at least one blocking element (brake element) of the fixed bracket is fixed to the slide rail.

This fixing position can be canceled by actuation of the loading device. By changing the inclination position of the at least one blocking element, the fixation is released and the fixed bracket can be brought to the slide rail in a desired position by the operator. An operator can thereby easily determine the position of the fixed bracket on the slide.

In particular, the operator does not need any tools to adjust the position. The fixed bracket does not need to be solved by loosening screws or the like, but by canceling the blocking position (blocking position) of the at least one blocking element can be realized in a simple manner adjustability.

The at least one blocking element is in particular a plate (preferably metallic plate) with a recess through which the slide rail is guided. As a result, can be achieved by the at least one blocking element in a simple manner, a canting on the slide, which blocks the mobility of the fixed bracket.

It is particularly advantageous if a first blocking element is provided, which blocks the displaceability of the fixed strap on the slide rail in a first direction in a first blocking direction, and a second blocking element is provided, which in a second blocking position the displaceability of the fixed strap on the slide rail locks in a second direction, which is the opposite direction to the first direction. As a result, a secure fixation of the fixed bracket to the slide against all force directions can be achieved.

In particular, an angular position of the first blocking element in the first blocking position is opposite to an angular position of the second blocking element in the second blocking position, that is to say the corresponding angles have opposite signs. The angle is preferably measured starting from a pivot axis to a longitudinal direction of the slide rail. If there are two blocking elements, then it is possible that pivot axes of the first blocking element and the second blocking element lie on the same side to the slide rail or lie on different sides to the slide rail. In the first case, if the Swivel axes are on the same side of the slide, then preferably the first blocking element and the second blocking element are mirror images of each other, that is in the blocking position, they have the same amount angle with different signs to the longitudinal direction of the slide on. If the pivot axes lie on different sides of the slide, then the first blocking element and the second blocking element are preferably aligned parallel to each other in the respective blocking position. The respective pivot axes are preferably arranged point-symmetrically to a mirror axis. Again, the angles are equal in magnitude and have different signs when the angle is measured from the pivot axis.

It is particularly advantageous if the at least one blocking element is spring-loaded, wherein the spring force presses the at least one blocking element into its locking position. If the loading device does not act, the at least one blocking element is blocked in its blocking position. By a force against the spring force, the locking position can be canceled.

It is structurally favorable if the at least one blocking element is arranged pivotably relative to the slide rail on the fixed bracket.

As a result, the blocking position can be achieved in a simple manner, for example by a spring which presses the at least one blocking element into the corresponding inclination position (tilting position). This blocking position can be canceled by pivoting in the opposite direction in a simple way.

It is particularly advantageous if the application device has a pressure element which can be displaced linearly on the fixed bracket. About this pressure element is by appropriate displacement on the at least one Locking element acting. In particular, the action of the pressure element, the at least one blocking element is pivoted out of a blocking position, so that the displaceability of the fixed bracket is released on the slide rail.

It is particularly advantageous if a pivoting movement of the at least one blocking element can be actuated by the pressure element in order to lift a blocking position in a simple manner.

It is advantageous if the pressure element is spring-loaded, wherein for the action of the pressure element on the at least one blocking element, a force must be exerted against the spring force. In a normal position, the pressure element does not act on the at least one blocking element. The spring force positions the pressure element in this normal position. When a force is exerted on the pressure element, then the spring force must be overcome in order to act on the at least one blocking element can. As a result, the fixed bracket can be "operated" in a simple manner to change its position on the slide rail.

In particular, the pressure element can be actuated from an upper side or lower side of the fixed bracket. This results in a simple structural design and operability. In particular, contact surfaces of the fixed bracket are kept free.

The invention is further based on the object to provide a ferrule of the type mentioned, which is used in a simple and safe manner.

This object is achieved in the above-mentioned ferrule according to the invention that at least one slide rail contact element is seated on the slide, which has at least one contact surface, which is oriented transversely to the first contact surface and transversely to the second contact surface.

By way of such a contact surface of the slide rail contact element ("cover surface"), which is provided by a slide rail contact element, the clamp can be placed on a workpiece on an upper side of the workpiece.

At a top end, a slide rail abutment also has a surface. About this surface, the ferrule can also be placed on a pad, so that this area is a contact surface ("Aufsetzfläche"). If the housing device does not protrude beyond this essay end, then can be moved with the ferrule the housing device with the sliding bar.

Furthermore, the ferrule can be fixed on the at least one slide-contact element on a base such as a table. If the corresponding contact element has an opening, it can be fixed to a table-like base with a clamp with pin (bolt), such as the table clamp TK6 of BESSEY Tool GmbH & Co. KG, and thus also the clamp itself can be fixed.

Furthermore, the workpiece is protected from contact with the slide rail.

It is favorable if the at least one slide rail contact element is held detachably on the slide rail. It can thus be easily positioned on the slide and, if necessary, remove it again.

It is advantageous if the at least one slide rail contact element is clipped onto the slide rail. This makes it easy to set up and remove again.

It is also advantageous if the at least one slide rail contact element is displaceable on the slide rail. This makes it easy to position. For example, it is provided that the at least one slide rail contact element is held in a force-locking manner with respect to a direction parallel to the longitudinal direction of the slide rail. If a correspondingly high force is used to overcome the frictional force, the slide rail contact element can be positioned.

It is advantageous if the at least one slide-contact element is made of a plastic material and is preferably formed in one piece. This results in a cost-effective production and ease of use. Furthermore, there is an optimized workpiece protection.

It is also advantageous if the at least one slide-contact element has a contact region, a first leg and a second leg. At the investment area a contact surface is formed. The slide can be brought between the first leg and the second leg in order to fix the at least one slide-contact element on the slide can. At the ends of the legs may be formed another contact surface.

Advantageously, a recess adapted to the slide rail is formed on the first leg and / or on the second leg. In this recess, the slide can be inserted and thereby can achieve a form fit, on which the at least one slide rail contact element can be captively secured to the slide.

It is favorable if the first leg and the second leg are designed to be elastic and / or are held resiliently on the contact area. As a result, the at least one slide rail contact element can be placed on the slide rail by spreading apart the first leg and the second leg and also positively fixed with respect to a longitudinal direction of the slide rail and, for example, transversely to this longitudinal direction.

A contact surface is conveniently below the slide rail on a side on which the Kraftbeaufschlagungseinrichtung is positioned. It lies on the side on which also the first contact surface and the second contact surface lie. This allows a workpiece to be protected from contact with the slide rail.

In particular, the at least one contact surface has a greater width than the slide rail. For example, the at least one contact surface has a width corresponding to the first contact surface of the fixed bracket and / or the second contact surface of the housing device. This makes it difficult to tilt the clamp when it is put on.

It is also advantageous if the at least one slide-contact element does not protrude beyond the fixed bracket on one end of a contact surface for a workpiece (which sits between the first contact surface and the second contact surface). As a result, the clamp can be placed at the appropriate place on the fixed bracket.

It is also advantageous if the at least one slide-contact element projects beyond the housing device at an end opposite a contact surface for a workpiece. As a result, the housing device is set back relative to this end. When the clamp is set up, then the slightly recessed housing device can be moved to the slide rail. A typical order of protrusion is 1 mm or less.

It is advantageous if the at least one slide-contact element between the housing device and the fixed bracket is arranged so as to protect one or more workpieces, which lie between the first contact surface and the second contact surface, from contact with the slide rail.

The invention is further based on the object to provide a simple method for producing a ferrule of the type mentioned.

This object is achieved in that is inserted in the clamp according to the invention in the first housing part of the opening during the manufacture of the ferrule of the slide.

Through the opening results in an optimized access to the housing interior and the slide bar can be easily positioned in the housing interior.

It is also advantageous if, after inserting the sliding bar, a holding element is inserted into the first housing part. The holding member serves to hold the first bearing means, the second bearing means and the pressure piece. It can be carried out a pre-assembly, for example, by the second bearing device is pre-assembled on the holding element and the pressure piece is fixed to the holding element.

In particular, the second housing part is then placed after insertion of the retaining element on the first housing part, thereby closing the opening.

For example, rollers of the second bearing device are fixed to the retaining element before or after insertion of the retaining element.

It is particularly advantageous if a roller holding element is inserted into the first housing parts before inserting the sliding bar, which holds rollers of the first bearing device. This roller holding element serves as an auxiliary element during assembly of the clamp. It ensures that rollers of the first bearing device are positioned correctly aligned in the housing interior.

It is then also advantageous if the rollers of the first bearing device are held on the first housing part and / or a holding element by pins which are inserted from an outer side of the housing device ago. As a result, the effort for the production and fixing and assembly of the first bearing device is minimized to the housing device.

Figur 1

eine perspektivische Darstellung eines ersten Ausführungsbeispiels einer erfindungsgemäßen Zwinge;

Figur 2

eine Seitenansicht der Zwinge gemäß Figur 1;

Figur 3

eine Explosionsdarstellung einer Gehäuseeinrichtung der Zwinge gemäß Figur 1;

Figur 4

eine Explosionsdarstellung eines Festbügels der Zwinge gemäß Figur 1;

Figur 5

eine Draufsicht auf den Festbügel gemäß Figur 4 (in Explosionsdarstellung);

Figur 6

eine Schnittansicht des Festbügels gemäß Figur 1 in der Linie 6-6;

Figur 7

eine perspektivische Darstellung eines zweiten Ausführungsbeispiels einer erfindungsgemäßen Zwinge, wobei der Festbügel nicht gezeigt ist; und

Figur 8

eine Explosionsdarstellung eines Festbügels für die Zwinge gemäß Figur 7.

The following description of preferred embodiments is used in conjunction with the drawings for further explanation of the invention. Show it:

FIG. 1

a perspective view of a first embodiment of a clamp according to the invention;

FIG. 2

a side view of the ferrule according to FIG. 1 ;

FIG. 3

an exploded view of a housing device of the ferrule according to FIG. 1 ;

FIG. 4

an exploded view of a fixed bracket of the ferrule according to FIG. 1 ;

FIG. 5

a plan view of the fixed bracket according to FIG. 4 (in exploded view);

FIG. 6

a sectional view of the fixed bracket according to FIG. 1 in the line 6-6;

FIG. 7

a perspective view of a second embodiment of a ferrule according to the invention, wherein the fixed bracket is not shown; and

FIG. 8

an exploded view of a fixed bracket for the ferrule according to FIG. 7 ,

A first embodiment of a clamp according to the invention, which in the FIGS. 1 and 2 shown and designated therein by 10, comprises a slide rail 12. The slide rail 12 is made of a metallic material. It extends in a longitudinal direction 13. It has an upper side 14 and a lower side 16. The top 14 and / or the bottom 16 may be corrugated. Furthermore, the slide rail 12 has opposite side surfaces 18a, 18b.

The slide rail 12 is profiled. An envelope in cross section is substantially rectangular.

The slide rail 12 has a first end 20a and an opposite second end 20b.

At or in the vicinity of the second end 20b, a fixed bracket 22 is arranged. The fixed bracket 22 can be determined slidably on the slide rail 12, that is, its position relative to the longitudinal direction 13 may be adjustable, or the fixed bracket 22 may be fixed to the slide immovably 12 be fixed. In the event that the fixed bracket 22 is slidably lockable on the slide rail 12, it may be provided that at or in the vicinity of the second end 20b of the slide rail 12, an example, pin-shaped elevation 24 is arranged, can be prevented by the fact that the fixed bracket 22nd can be deducted from the slide rail 12 in the direction of the second end 20b.

The fixed bracket 22 has a first contact surface 26 for a workpiece. This first abutment surface 26 is substantially planar and extends substantially perpendicular to the longitudinal direction 13 of the slide rail 12. The first abutment surface 26 points from a side which extends beyond the underside 16 to a side which extends beyond the upper side 14, that is, the first abutment surface 26 extends beyond the slide rail 12.

At a corresponding contact element 28, on which the first bearing surface 26 is formed, a recess 30 is formed, through which the slide rail 12 has penetrated, in order to fix the fixed bracket 22 to the slide rail 12 can.

It can be provided that the fixed bracket 22 has a further contact surface 32, which faces away from the first contact surface 26. This further contact surface 32 is likewise preferably flat and, in particular, parallel to its first contact surface 26.

Embodiments of fixed hangers 22 will be described in more detail below.

The ferrule 10 is designed in particular as a body clamp. It comprises a housing device 34 (body) through which the slide rail 12 has penetrated and which is slidably guided on the slide rail 12. For this purpose, a first bearing means 36 for the slidable mounting on the slide rail 12 and a second bearing means 38 is arranged on the housing means 34. The first bearing device 36 and the second bearing device 38 are spaced from one another in the longitudinal direction 13.

The detailed design of the first bearing means 36 and the second bearing means 38 will be described below in connection with the exploded view according to FIG FIG. 3 explained in more detail.

The housing device 34 has a first housing part 40 which has a longitudinal region 42 which extends in the longitudinal direction 13 and has a transverse region 44 which extends transversely to the longitudinal direction 13 and in particular perpendicularly thereto. The first housing part 40 is preferably made of a plastic material and formed in one piece or, for example, in two pieces with two housing shells.

The first bearing device 36 and the second bearing device 38 are arranged on the longitudinal region 42. Accordingly, the slide rail 12 penetrates the longitudinal region 42.

The housing device 34 has a housing interior 46, which is defined in particular by the first housing part 40.

In the housing interior 46, a slide bracket 48 is arranged, which is positioned between the first bearing means 36 and the second bearing means 38. The slide bar 48 is guided displaceably on the slide rail 12. He has for this purpose a recess through which the slide rail 12 is immersed. The slide bracket 48 extends in a transverse direction to the longitudinal direction 13.

On the slide bar 48 a Kraftbeaufschlagungseinrichtung 50 is held. For this purpose, a hollow-cylindrical element 52, which has an internal thread 54, is arranged on the slide bar 48, which is produced in particular from a metallic material. The hollow cylindrical element 52 is in particular integrally formed on the slide bracket 48. It is spaced from the slide rail 12. In the internal thread 54 of the hollow cylindrical member 52, a spindle 56 is guided with an external thread. On the spindle 56 sits a handle 60, via which a rotational movement of the spindle 56 in the hollow cylindrical member 52 is actuated.

The spindle 56 has at its end remote from the handle 60 on a holding head (not shown in the drawings), on which a pressure piece 62 is held. Via the pressure piece 62, a force can be exerted on the housing device 34 by the force application device 50.

The pressure piece 62 has a holding head receiving space 64. In this example, the spherical holding head of the spindle 56 is immersed.

It is possible that the pressure piece is designed as a workpiece-pressurizing device, as in the not pre-published DE 10 2006 008 871 B3 described. Accordingly, at least one blocking element for fixing the holding head in the holding head receiving space 64 is then arranged on the pressure piece 62. This blocking element is positioned in a blocking element receiving space and must be penetrated by the holding head. The at least one locking element and the locking element receiving space are formed so that the force required to penetrate the at least one locking element in an insertion direction of the holding head into the holding head receiving space is smaller than the force required to penetrate in a direction of execution of the holding head from the holding head receiving space. This facilitates the manufacture of the ferrule 10, as described in more detail below.

The sliding bar 48 can be tilted on the slide rail 12. About him, by means of the pressure piece 62, a force on the housing means 34 exercisable to produce a clamping force. By Verkantbarkeit the Gleitbügels 48 a corresponding clamping position is secured.

The housing device 34 serves to receive the Gleitbügels 48 and the introduction of force.

In the housing interior 46, a holding element 66 (FIG. FIG. 3 ), which serves to hold the first bearing means 36, the second bearing means 38 and the pressure piece 62. The holding element 66 comprises for this purpose a first leg 68a and a second leg 68b spaced parallel thereto. The first leg 68a and the second leg 68b have an L-shaped configuration, wherein the two legs 68a and 68b are basically the same.

The two legs 68a and 68b are connected to each other at a front end by a connecting web 70. The holding element 66 is in particular formed in one piece and preferably made of a metallic material. Due to the connection with the connecting web 70, the holding element 66 has seen from above or from below a U-shaped configuration. (Due to the L-shaped configuration of the first leg 68a and the second leg 68b, it has an L-shaped shape from the side.)

The holding element 66 has, adapted to the first housing part 40, a longitudinal region 72 and a transverse region 74, wherein the transverse region 74 is oriented transversely to the longitudinal region 72 and transversely to the longitudinal direction 13 of the slide rail 12.

The holding element 66 has in the transverse region 74 opposite slots into which the pressure piece 62 is immersed with a pressure plate 78. As a result, the pressure plate 78 is locked with respect to a displacement direction 80 of the housing device 34 on the slide rail 12 in its mobility with respect to the housing device 34. (The displacement direction 80 comprises an advancing direction of the housing device 34 on the fixed bracket 22 and a backward direction of the housing device 34 away from the fixed bracket 22.)

The slots 76a, 76b are preferably open at the top, so that the pressure piece 62 can be used with its pressure plate 78 in a simple manner from above.

The holding element 66 is open at its further front end, which is opposite the connecting web 70, so that it can be pushed over the sliding bar 48 during the production of the clamp 10.

In order to form the first bearing device 36, recess pairs 82a, 82b are arranged on the transverse region 74 of the retaining element 66 in the region of the front-side end which faces away from the connecting web 70. A pair of recesses 82a, 82b in each case comprises a recess 84a, 84b or 86a, 86b. These recesses 84a, 84b are in particular formed as through-recesses in the holding element 66, wherein the recesses 84a and 86a are formed in the second leg 68b and the recesses 84b and 86b are formed in the first leg 68a. The recesses of a pair of recesses 82a, 82b are aligned with each other. The recesses 84a, 84b of the pair of recesses 82a lie above the recesses 86a, 86b of the pair of recesses 82b.

Through the recesses 84a, 84b of the pair of recesses 82a, a pin 88 is guided. This holds a rotatable roller 90, wherein the roller 90 is disposed between the first leg 68a and the second leg 68b. Accordingly, a pin 92 is guided by the recesses 86a, 86b of the pair of recesses 82b, which holds a roller 94 between the first leg 68a and the second leg 68b, said roller 94 is rotatable.

The first housing part 40 has through openings 96a, 96b, 98a, 98b, which are aligned with the recesses 84a, 84b and the recesses 86a, 86b, when the holding element 66 is positioned in the housing interior 46. Thereby, the pin 88 having a head 100 can penetrate through the opening 96a, the recess 84a, the space between the first leg 68a and the second leg 68b, the recess 84b and the opening 96b. By a counter-head 102, it is secured to the housing device 34. Accordingly, the pin 92 can then penetrate through the opening 96a, the recess 86a, the space between the first leg 68a and the second leg 68b, the recess 86b and the opening 98b, being secured by a counter head corresponding to the counterhead 102.

It is then formed the first bearing means 36, wherein the holding member 66 is fixed to the first housing part 40 via the pins 88 and 92.

It is basically possible that the rollers 90, 94 are fixed, that is not rotatable, so that the slide rail 12 is slidably mounted alone. If the rollers 90, 94, between which the slide 12 is located, are rotatable, then there is also a roller bearing. It is also possible that the rollers 90, 94 are formed directly over the pins 88 and 92.

In the vicinity of the front end of the retaining element 66, on which the connecting web 70 is arranged, also Ausnehmungspaare 104a, 104b are formed with through recesses. The recess pair 104a lies on the same height as the recess pair 82a, and the recess pair 104b is at the same height as the recess pair 82b.

In the recesses of the Ausnehmungspaars 104a and the recesses of the pair of recesses 104b sits respectively a pin 106, 108, which holds a roller for supporting the slide rail 12 and on which a roller for slide bearing of the slide rail 12 is formed. It is in principle possible for the corresponding roller to be rotatably seated on the associated pin 106 or 108 or not rotatably seated. As a result, the second bearing device 38 is formed.

The first housing part has an end wall 110, which faces the first end 20a of the slide rail 12. This end wall 110 is closed except for a recess 112, through which the slide rail 12 passes.

Furthermore, the first housing part 40 has opposite side walls 114a, 114b, which are closed. Further, the first housing part 40 on a bottom 116 and on a top 118 each have a closed wall.

On a rear side of the first housing part 40, which faces away from the fixed bracket 22, the first housing part 40 has a through opening 120, through which the spindle 56 or the sliding bracket 48 can pass. It can then be exercised via the force application device 50, a force on the pressure piece 62 which sits on the retaining element 66.

Furthermore, the first housing part 40 on the longitudinal region 42 on an upper side an opening 122, which allows a relative movement of the slide bracket 48 in the housing interior 46 to the housing means 34 between the first bearing means 36 and the second bearing means 38.

In the housing interior 46 of the end wall 110 adjacent or this contacting a roller holding member 124 is arranged. This roller holding element 124 serves to simplify the manufacturability of the clamp 10. It comprises a recess 126 through which the slide rail 12 can dip. It also has recesses 128a and 128b into which the rollers 90 and 94 can be inserted. As a result, during production, the rollers 90 and 94 can be temporarily held in a correct position prior to insertion of the retaining element 66.

The roller holding element 124 has on opposite sides a recessed area 129, to which the holding element 66 in the region of its front end, which is the connecting web 70 opposite, is pushed.

The housing device 34 furthermore has a second housing part 130, via which an opening 132 of the first housing part 40 is closed.

The opening 132 extends between the upper side 118 and the lower side 116 and between the side walls 114a, 114b of the first housing part 40. The opening 132 serves to insert the roller holding element 124, the sliding bar 48 and the holding element 66 into the housing interior 46 of the first housing part 40th

The opening 132 has a substantially rectangular cross-section.

The second housing part 130 is latched to the first housing part 40. It has opposing tabs 134a, 134b, which in particular tongue-shaped, and which are immersed in fixed to the first housing part 40 second housing part 130 in the housing interior 46 and provide a locking fixation. The tabs 134a, 134b are assigned to the upper side 118 and the lower side 116 of the first housing part 40.

Furthermore, the second housing part 130 has laterally opposite tabs 136a, 136b, by means of which the second housing part 130 can be fixed to the first housing part 40 and in particular latched. The tabs 136a, 136b have, for example, a wave-shaped structure 138. On the second housing part, oppositely adapted wave-shaped structures 140 are formed, which serve to receive the wave-shaped structure 138. The wave-shaped structure 140 on the second housing part 40 is formed so that it does not protrude into the housing interior 46 in which the holding element 66 is arranged. As a result, the wave-shaped structure 138 can be positioned laterally past the holding element 66.

It can be provided that the tabs 136a, 136b extend to a lower side of the second housing part 130 and thereby have recesses 142a, 142b and 144a, 144b. Recesses 142a and 142b, which are designed in particular as through-openings, are adapted to the recesses of the pair of recesses 104a. The recesses 144a, 144b, which are designed in particular as through-openings, are adapted to the recesses of the pair of recesses 104b.

The pins 106 and 108 which are seated on the support member 66 project laterally beyond the first leg 68a and the second leg 68b. The second housing part 130 can then be placed on the holding element 66, wherein the pin 106 protrudes at least partially into the recesses 142a, 142b and the pin 108 is at least partially immersed in the recesses 144a and 144b. As a result, the second housing part 130 can be fixed to the holding element 66 and thus in addition to the latching with the second housing part 130 via the tabs 134a, 134b and the latch on the tabs 136a, 136b (or under positive connection via the tabs 136a, 136b) hold.

The second housing part 130 is in particular made in one piece from a plastic material.

On the second housing part 130 sits a contact element 146, which is in particular pushed. The abutment element 146 is preferably made of a plastic material. At the contact element 146, a second contact surface 148 is formed for a workpiece. This second contact surface 148 is aligned essentially flat and substantially parallel to the first contact surface 28 of the fixed bracket 22. Furthermore, the second contact surface 148, which is arranged on the housing device 34, substantially perpendicular to the longitudinal direction 13 of the slide rail 12th

Furthermore, the second contact surface 148 extends beyond the slide rail 12 from an upper side (relative to the slide rail 12) to an underside.

The second housing part 130 has a recess 150, which is formed as a passage opening. This is aligned with a recess 152 in the contact element 146. Through the recesses 150 and 152, the slide rail 12 is immersed.

• In das Rollenhalteelement 124 werden die Rollen 90 und 94 eingelegt. Das Rollenhalteelement 124 mit den eingelegten Rollen 90 und 94 wird in den Gehäuseinnenraum 46 des ersten Gehäuseteils 40 eingeschoben, bis die Rolle 90, welche hohlzylindrisch ausgebildet ist, fluchtend zu den Öffnungen 96a, 96b ausgerichtet ist und die Rolle 94 zu den Öffnungen 98a, 98b ausgerichtet ist.

The housing device 34 is manufactured as follows and fixed to the slide rail 12:

• In the roller holding member 124, the rollers 90 and 94 are inserted. The roller holding element 124 with the inserted rollers 90 and 94 is inserted into the housing interior 46 of the first housing part 40 until the roller 90, which is formed as a hollow cylinder, is aligned with the openings 96a, 96b and the roller 94 is aligned with the openings 98a, 98b.

The roller holding element 124 is in particular designed so that when it contacts the inside of the end wall 110, the aligned alignment is achieved, wherein correspondingly the roller holding element. 124 has a height which corresponds to the internal height of the housing interior 46 on the inside of the end wall 110.

The slide rail 12 has either been previously pushed through the recess 112 or it is pushed through after positioning of the roller holding member 124.

After positioning of the roller holding member 124 of the slide bar 48 is placed on the slide rail 12 and placed in the housing interior 46. In this case, the force-applying device 50 can already be arranged without pressure piece 62 on the sliding bracket or it can be subsequently fixed.

At the provided holding element 66, the pressure piece 62 is fixed in the slots 76a, 76b.

Further, the pins 106 and 108 are fixed to form the second bearing means 38.

The suitably prepared holding element 66 is then pushed with its open front end over the opening 132 in the housing interior 46. It is possible that the second housing part 130 is already mounted on the holding element 66, wherein in particular the pins 106 and 108 are immersed in corresponding recesses 142a, 142b and 144a, 144b of the second housing part 130.

The holding element 66 is displaced until the first leg 68a and the second leg 68b overlap the corresponding abutment region 129 of the roller holding element 124. Thereby, the rollers 90 and 94 are correctly positioned with respect to the pair of recesses 82a and 82b. With a corresponding adaptation of the retaining element 66 to the first housing part 40, the correct alignment is achieved when the first housing part 40 with the second housing part 130 is closed. The closure is achieved by latching, wherein, as mentioned above, the second housing part 130 is displaced with the holding element 66 or the second housing part 130 is placed later.

In both cases, the slide rail 12 is penetrated by the recess 150.

It is then the contact element 146 is placed and pushed in particular from one side. Accordingly, the recess 152 is slot-shaped.

Through the openings 96a, 96b of the pin 88 is immersed and secured with the counter-head 102. By the corresponding orientation of the holding element 66 while the pin 88 is penetrated through the roller 90 and through the recesses 84 a and 84 b.

In the same way, the pin 92 is immersed.

As a result, the housing device 34 is produced with a slide bar 48 arranged therein, wherein the second contact surface 148 is also provided. Furthermore, the first bearing device 36 and the second bearing device 38 are formed for the slide rail 12.

On the handle 86, the spindle 56 is rotated so that its holding head enters the holding head receiving space 64 of the pressure piece 62. As a result, the pressure piece 62 is then fixed to the force application device 50.

If the slide rail 12 is provided with a protrusion 24 (or grove pins, as described in more detail below with reference to a second embodiment), then it is necessary that the individual parts of the housing means 34 first on the slide rail 12 of the end 20 a of the slide rail 12 are threaded on this before it is assembled; In this case, the contact element 146, the second housing part 130, the holding element 66, the roller holding element 124 and the first housing part 40 are threaded in this order. As described above, the roller holding element 124 is then positioned in the housing interior 46, the holding element 66 is placed, the housing interior 46 is closed by the second housing part 130 and the contact element 146 is attached. After positioning the retainer 66, the pins 88 and 92 are positioned and secured.

The fixed bracket 22 of the ferrule 10 is lockable slidably. It is fixed to the slide rail 12, that is, in the use of the ferrule 10, when one or more workpieces between the first bearing surface 26 of the fixed bracket 22 and the second bearing surface 148 of the housing device 34 are to be clamped, it is immovably fixed with respect to the slide rail 12 , Its position on the slide rail 12 relative to the first end 20a and the second end 20b, however, is adjustable.

In one embodiment, which in the FIGS. 4 to 6 is shown, the fixed bracket 22 comprises a housing 154. This housing 154 is made for example of a plastic material and in one or more parts educated. The housing 154 has at least approximately a cuboid shape. In the housing 154, a first opening 156 is arranged on a first housing wall 158. On one of the first housing wall opposite the second housing wall 116 a to the first opening 156 aligned opening is provided (not visible in the drawings). Through these openings, the slide rail 12 is passed.

Between the first housing wall 158 and the second housing wall 160 are opposite side walls 162a and 162b.

In a housing interior 164 of the housing 154, a holding element 166 is arranged. The holding member 166 serves to hold a mechanism for releasably fixing the fixed bracket 22 to the slide rail 12, and is particularly made of a metallic material.

The support member 166 includes aligned mutually facing through openings 168a, 168b which, when positioned in the housing interior 164, are aligned with the openings of the housing 154 for the slide rail 12; the slide rail 12 has passed through the openings 168a, 168b through the support member 166.

The opening 168a is formed on a wall 170a, and the opening 168b is formed on a wall 170b of the support member 166. The walls 170a and 170b are spaced from each other. The wall 170a is aligned substantially parallel to the first housing wall 158a and the wall 170b is aligned substantially parallel to the second housing wall 160.

On the holding element 166 sits between the wall 170a and the wall 170b, a first blocking element 172 (brake element), which is in particular plate-shaped with a slot 174 through which the slide rail 12 is guided. The first blocking element 172 is pivotally mounted, so that its inclination position is variable relative to the slide rail 12.

For pivotal mounting, a pin 176 spaced from the wall 170b in the vicinity of this is arranged on the holding element 166. The pin 176 provides a virtual pivot axis for the pivotability of the first blocking element 172 on the holding element 166. This virtual pivot axis lies in a line of contact between the holding member 166 and the pin 176. Between this pin 176 and the wall 170b, the first blocking element 172 is inserted.

Relative to the opening 168b, the pin 176 lies on one side. On an opposite side there is mounted on the wall 170b a further spring 180 which acts on the first blocking element 172 at or near an end facing away from the end which lies in the vicinity of the pin 176. The spring 180 is a compression spring having a spring force in a direction 182 which is substantially parallel to the longitudinal direction 13 of the slide rail 12. The spring 180 urges the first blocking element 172 into a tilted position relative to the slide rail 12, which is a locked position; in this blocking position, the fixed bracket 22 is at least in one direction not displaceable on the slide rail 12 and thereby fixed thereto. In this blocking position, the first blocking element 172 is at an angle 184 to the longitudinal direction 13 of the slide rail 12. This angle is for example in the order of 80 °.

The first blocking element 172 can be pivoted against the spring force of the spring 180 in the direction of the wall 170b by exerting force. This can be a blocking position cancel.

In the holding element 166, a second blocking element 186 is further arranged pivotably. For this purpose, a pin 188 is provided which is spaced from the Wall 170a adjacent to this. The pin 188 is at the same distance from the slide rail 12 as the pin 176 and at the same distance from the wall 170a as the pin 176 to the wall 170b.

Furthermore, fixed to the wall 170a is a spring 192 which has the same function as the spring 180. A spring force of the spring 192, which is also a compression spring, acts in a direction 194 which is an opposite direction to the direction 182.

The second blocking element 186 is arranged mirror-symmetrically (to a mirror plane 187) to the first blocking element 172 with a mirror axis perpendicular to the slide rail 12. When the first blocking member 172 has a locking position with the angle 184, then the second blocking member 186 has a locking position with an angle to the longitudinal direction 13 of the slide rail 12, which has the opposite sign to the angle 184.

By the first blocking element 172, the mobility of the fixed bracket 22 is locked to the slide rail 12 in a first direction. The second blocking element 186 blocks the mobility in the opposite direction. At the in FIG. 5 In the embodiment shown, the first blocking element 172 locks the mobility of the fixed bracket 22 on the slide rail in the direction 194. The second blocking element 186 blocks the mobility of the fixed bracket 22 on the slide rail 12 in the direction 182. In the locked position of the first blocking element 172 and the second blocking element 186 these are tilted with the slide rail 12 and the movement relative to the slide rail 12 in the corresponding direction is locked. The tilting can be supported by the above-mentioned corrugation of the slide rail 12.

By the pins 176 and 188 are (virtual) pivot axes for the pivotability of the first blocking element 172 and the second blocking element 186 provided on the holding member 166. In the embodiment shown, the pins 186 and 188 are located on the same side relative to the slide rail 12; so that the pivot axes are also on the same page. It is also possible in principle that the corresponding pivot axes lie on different sides. In a blocking position, the first blocking element and the second blocking element are then preferably aligned parallel, wherein the arrangement is such that the first blocking element and the second blocking element can pivot in different pivoting directions.

Between the walls 170a and 170b, opposite walls 196a, 196b extend. These walls have recesses 198a, 198b to which the pins 190 and 176 are fixed. Between the walls 170a, 170b, 196a and 196b, an inner space 200 is formed, in which the first blocking element 172 and the second blocking element 186 together with the associated locking mechanism are arranged.

On the holding element 166, a pressure element 202 is arranged, which in a direction 204 which is transversely and in particular perpendicular to the longitudinal direction 13 of the slide rail 12, is guided displaceably.

The pressure element 204 has an actuating end 206 (push button), which lies on an upper side of the fixed bracket 22. This upper side is the side which has the greatest distance to the sliding bar or which is at least approximately at the same height as the upper side 118 of the first housing part 40.

The pressing member 202 is disposed in the inner space 200 of the holding member 166, wherein the holding member 166 on the wall 196 a and the wall 196 b provides a guide means for the sliding guide (sliding) of the pressure member 202.

The pressure element 202 has a first leg pair with legs 208a, 208b and a second leg pair with legs 210a, 210b. The legs 208a, 208b are located on the same side with respect to the mirror plane of the first blocking element 172 and the second blocking element 186. The legs 208a and 208b are spaced from one another with a gap 212 therebetween. They basically have the same mobility.

The legs 210a, 210b of the second leg pair lie on the other side of this mirror plane. They are spaced from each other with a gap 214 between them. They have the same mobility. The gaps 212 and 214 serve to dip the slide rail so that the pressure member 202 does not come into contact with the slide rail.

The legs 208a, 208b and 210a, 210b are elastically disposed on a base body 216 of the pressing member 202 so that they are bendable outwardly and can return to their original position. In particular, the legs 208a, 208b, 210a, 210b are integrally formed on the base body 16, so that the pressure element 202 is in one piece.

Between the pins 188 and 176, a web element 218 is arranged in the interior 200. At this web element, a spring 220 is supported. For example, a cylindrical elevation 222 is arranged on the web element 18, on which the spring 220, which is in particular a compression spring, is placed.

At an opposite end of the collection 222, the spring 220 is supported on the base 216 of the pressure element 202 from. This has to the central cylindrical elevation 224, on which the spring 220 is placed. The survey 224 lies on the mirror plane for the first Blocking element 172 and the second blocking element 186. The spring 224 is designed so that it exerts no spring force on the pressure element 202, when this is in its "normal position", in which the mobility of the fixed bracket 22 is blocked on the slide rail 12.

In FIG. 6 the interaction of the pressure element 202 with the blocking elements 172 and 186 is shown. In openings 226 of the walls 196a and 196b, a pin 228 is positioned, which lies between the first leg pair and the second leg pair. In the "normal state", the legs 208a, 208b, 210a, 210b do not act on the blocking elements 172 and 186.

If the pressure element 202 in the direction 204 in the interior 200 continues to be pressed, while pressed against the spring force of the spring 220, then moves an inner side of the legs 208 a, 208 b and 210 a, 210 b along the pin 28. The inner side is formed, that is formed with such a slope, that by the displacement of the pressure element 202 and thus the legs 208a, 208b, 210a, 210b in the direction 204, the legs of the first pair of legs and the second pair of legs are pushed apart. This is in FIG. 6 indicated by the arrows with the reference numerals 230a and 230b. Furthermore, the legs 208a, 208b act on the second blocking element 186 and the legs 210a, 210b act on the first blocking element 172 and pivot them in opposite directions. This is in FIG. 6 also indicated by the arrows 230a and 230b. As a result, the inclination position of the first blocking element 172 and of the second blocking element 186 is changed by the pressure element 202, that is to say the angle to the longitudinal direction 13 of the slide rail 12 is increased in the direction 90 °, and the blocking is thereby released. In turn, the fixed bracket 22 can be moved to the slide rail 12 and brought into the desired position.

When the pressure member 202 is released, that is, when no force is exerted, the spring 220 pushes the pressure member 202 in the opposite direction to the direction 204 and the loading of the locking members 172 and 186 by the first leg pair and the second leg pair is released. As a result, the first blocking element 172 and the second blocking element 186, in turn, transition into their inclined locking position, in which the mobility of the fixed bracket 22 to the slide rail 12 is blocked.

On the housing 154, the contact element 28 is arranged and in particular pushed. This is in particular pushed onto the first housing wall 158.

On the opposite housing wall 160, a further contact element 232 is pushed, which is also provided with a slot-shaped recess 234 for the slide rail 12. At this contact element 232, the further contact surface 32 is formed.

On an underside, the housing 154 is closed by a cover element 236. The interior 200 is thereby closed except for the openings for the slide rail 12.

In a further embodiment of a clamp according to the invention, which in FIG. 7 shown in a partial view and designated there by 238, the housing means is basically the same design as in the ferrule 10. It is therefore used the same reference numerals. The housing device 34 is guided on a slide rail 240, which is basically the same design as the slide rail 12. However, in the vicinity of the end 20b on the slide rail 240 pins 242a, 242b fixed. These pins 242a, 242b are in particular designed as grooved pins. They protrude perpendicular to Longitudinal direction 13 of the slide rail 240 addition. They protrude to both opposite sides. It is basically possible that a continuous pin 242a or 242b protrudes on both sides, in which case the slide rail 240 is provided with corresponding openings, in which then the pins 242a and 242b are fixed and in particular pressed.

It is also possible that pens are fixed semi-protruding. If then two pins are arranged on one side, a total of four pins are needed.

The pins 242a, 242b are used for fixing a fixed bracket 244, which in FIG. 8 shown in exploded view.

The fixed bracket 244 comprises a housing 246 with a first housing part 248 and a second housing part 250. The first housing part 248 has a peripheral edge region 252. Within this edge region 252, a first tab 254 and a second tab 256 are arranged, which protrude perpendicularly via a bottom 258 of the first housing part 248.

In the first tab 254 and the second tab 256 are aligned openings 260a, 260b for receiving the pin 242b and openings 262a, 262b for receiving the pin 242a arranged. In the edge 252, which is pulled up, openings 264 are arranged, which are aligned with the openings 262a, through which the pin 242a can also penetrate.

On the first housing part 248, spaced-apart holding elements 266 are arranged on the bottom 258 within the edge region 252. These protrude above. They have slot-shaped recesses 268, wherein a plurality of holding elements 266 are provided and the recesses 268 are aligned with each other. In the exemplary embodiment shown, a holding element 266 has four recesses 268.

The recesses 268 are arranged so that in each case two recesses 268 of the first tab 254 are assigned and two recesses 268 of the second tab 256th

Holders 270 are positioned in the recesses 268. The holders 270 are in particular metal sheets. The holders 270 in turn each have openings 272a and 272b for penetrating the pins 242a and 242b.

The holders 270 are inserted into the recesses 268. In each case, there is a holder 270 in front of the first tab 254 and behind the first tab 254, so that the first tab 254 lies between adjacent holders 270. Furthermore, one holder 270 lies in front of the second tab 256 and behind the second tab 256, so that the second tab 256 lies between adjacent holders 270. The openings 272a in the holders 270 and the openings 260a, 260b and the openings 272b in the holders 270 and the openings 262a and 262b and the openings 264 are aligned in this case.

The second housing part 250 is placed on the first housing part 248, which has openings 274 and 276 for penetrating the pins 242b, 242a.

On the first housing part 248, a contact element 278 is arranged and in particular pushed, on which a first contact surface 280 is formed. On the second housing part 250, a contact element 282 is also pushed, on which a further contact surface is formed.

The first housing part 248 and the second housing part 250 are made of a plastic material which is so elastic that it is possible to assemble with the fixation on the slide rail 240.

When assembling two holders 270 are attached to the slide rail 240 with their pins 242a, 242b. Then, the first tab 254 and the second tab 256 of the first housing part 248 are attached. Subsequently, outer holder 270 are attached. The holders 270 are then positioned in the recesses 268 of the first housing part 248, that is, they are inserted.

Subsequently, the second housing part 250 is placed, wherein the walls of the openings 274, 276 are deformed so that a placement is possible.

In principle, it is also possible that first the fixed bracket 44 is assembled, then it is placed on the slide rail 240 and then the pins 242a, 242b are fixed to the slide rail 40 through the corresponding openings.

The provision of two holders 270, which are assigned to each tab 254, 256, results in a high load capacity in both directions (force loading of the first contact surface 280 and the further contact surface on the contact element 282).

On the slide rail 12 or 240 sit one or more slide rail contact elements 284. A slide rail contact element 284 is in particular made of a plastic material and formed in one piece. It includes ( FIG. 7 ) a first leg 286a and a second leg 286b. These Legs 286a, 286b are connected via an abutment region 288, which provides a (first) abutment surface 290. The contact surface 290 is oriented transversely and in particular perpendicular to the first contact surface 26 or 280 and to the second contact surface 148. The contact surface 290 lies below the slide rail 12 or 240 on a side on which the force application device 50 is arranged. It is thus facing a workpiece, which is clamped between the fixed bracket 22 or 244 and the housing device 34.

At an opposite end, the slide rail abutment member 284 has a second abutment surface 291 formed on the legs 286a and 286b. About this, the clamp is placed on a pad. The slide rail contact element 284 is designed such that this contact surface 291 protrudes beyond the housing device 34. The housing device is set back relative to the contact surface 291. A typical amount for the distance between the housing device 34 and the abutment surface 291 is 1 mm or less. If the ferrule is placed over the fixed bracket 22 or 244 and a slide rail contact element with bearing surface 291, then the housing means 34 is displaceable on the slide rail 12 or 240 by the recessed arrangement.

The housing device 34 preferably has a smaller maximum height above the slide rail 12 or 240 than the fixed bracket 22 or 244, specifically on the side facing away from the force application device 50. The height difference is of the order of 1 mm or less. As a result, it is possible, as described, to achieve a displaceability of the housing device 34 when placed on slide rail contact elements 284 on contact surfaces 291.

A slide rail contact element 284 is designed such that it can be clipped onto the slide rail 12 or 240. The first leg 286a and the second Legs 286b are so elastic and arranged on the abutment portion 288 that they are spreadable and a gap 292 between the first leg 286a and the second leg 286b on the slide rail 12 and 240 can be brought, that is, the slide rail 12, 240 in the Interspace 292 is insertable.

A recess 294 in the form of a depression, which is adapted to the shape of the slide rail 12 or 240, is formed in each case on the first leg 286a and the second leg 286b. In this recess 294, the slide rail 12 and 240 can be accommodated. When clipped slide rail contact element 284 a positive connection through the recess 294 (transverse to the longitudinal direction 13) is achieved.

Relative to the longitudinal direction 13 of the slide rail 12 or 240, a slide rail contact element 284 is frictionally held, so that it is displaceable on the slide rail 12 or 240 and can be positioned at a desired position, but with a force required for displacement (with a winder the frictional force) is necessary.

The contact surface 290 has a width that is greater than the width of the slide rail 12, 240. For example, the contact surface 290 has a width which corresponds to the width of the second contact surface 148 and the width of the first contact surface 26 and 280, respectively.

The slide rail contact element 284 does not protrude beyond an underside of the fixed bracket 22 or 244. As a result, the clamp can be placed over the corresponding underside of the fixed bracket 22 or 244 on a base such as a table.

It can in an above the slide rail 12 and 240 lying area (a region between the contact surface 291 and the slide rail 12th or 240) in each of the legs 286a, 286b an opening 296 may be arranged. One or more slide rail contact elements 284 are arranged in particular between the housing device 34 and the fixed bracket 22 or 244. Through the openings 296, a pin element (bolt) of a corresponding terminal such as the table clamp TK6 BESSEY Tool GmbH & Co. KG can be performed. This makes it possible to jam a slide rail contact element with a base (in particular a table) and this in turn makes it possible to jam the clamp to the base.

By one or more slide rail contact elements 284, the ferrule 10 and 238 can be placed on a workpiece. It is possible that the ferrule in the region of or the slide rail contact elements 284 with the or the contact surfaces 290 is placed on the workpiece. It is also possible to put the clamp upside down with the or the contact surfaces 291 and a bottom of the fixed bracket 22 and 244 on a pad.

Furthermore, workpiece surfaces are protected from contact with the slide rail 12 or 240, in particular made of a metallic material, by one or more slide rail contact elements 284.

The slide rail abutment elements 284 are removable from the slide rail 12 and 240, respectively.

At the end 20a of the slide rail 12 or 240, a blocking element 298 may be arranged, which is in particular clipped and made of a plastic material. The blocking element 298 serves to prevent the housing device 34 from being pulled off the slide rail 12 or 240. The blocking element 298 has a contact surface 299, which is aligned substantially flush with a contact surface 291 of a slide contact element 284, so that the clamp strikes a Pad is placed.

• Der Festbügel 22 bzw. 244 ist an der Gleitschiene 12 bzw. 240 fixiert. Zum Verspannen eines oder mehrerer Werkstücke zwischen der Gehäuseeinrichtung 34 und dem Festbügel 22 bzw. 244 wird die Gehäuseeinrichtung 34 mit ihrer zweiten Anlagefläche 148 an das entsprechende Werkstück heran geschoben. Die Kraftbeaufschlagungseinrichtung 50 ist dabei so gelockert, dass durch Drehen der Spindel 56 noch eine Kraftbeaufschlagung mittels des Druckstücks 62 möglich ist. Es wird dann die Spindel 56 über den Handgriff 60 gedreht. Der Gleitbügel 48 verkantet sich dabei an der Gleitschiene 12 bzw. 240 unter Druckkraftausübung über die Gehäuseeinrichtung 34 auf das entsprechende Werkstück. Dadurch erfolgt eine Verspannung zwischen der ersten Anlagefläche 26 bzw. 280 und der zweiten Anlagefläche 148.

The ferrule 10 or 238 according to the invention functions as follows:

• The fixed bracket 22 or 244 is fixed to the slide rail 12 and 240, respectively. For clamping one or more workpieces between the housing device 34 and the fixed bracket 22 or 244, the housing device 34 is pushed with its second contact surface 148 to the corresponding workpiece zoom. The Kraftbeaufschlagungseinrichtung 50 is loosened so that by turning the spindle 56 still a force application by means of the pressure piece 62 is possible. It is then rotated the spindle 56 via the handle 60. The slide bracket 48 is tilted on the slide rail 12 or 240 under pressure force exercise on the housing means 34 to the corresponding workpiece. This results in a tension between the first contact surface 26 or 280 and the second contact surface 148th

The ferrule 10 or 238 according to the invention can be produced in a simple and cost-effective manner. The housing device 34 can be mounted quickly in a simple and cost-effective manner. From a small number of items, the assembly of the ferrule 10 or 238 can be performed quickly.

Claims (15)

1. Clamp, comprising a slide rail (12; 240), a fixed arm (22; 244), which is fastened to the slide rail (12; 240) and on which a first abutment surface (26; 280) for a workpiece is arranged, a sliding arm (48), which is displaceable on the slide rail (12; 240), a housing arrangement (34), on which are held a first bearing means (36) and a second bearing means (38) spaced from the first bearing means (36), by means of which the housing arrangement (34) is displaceably guided on the slide rail (12; 240), wherein the sliding arm (48) is positioned between the first bearing means (36) and the second bearing means (38), and wherein there is arranged on the housing arrangement (34) a second abutment surface (148) for a workpiece, the second abutment surface facing the first abutment surface (26; 280) and a force application means (50), which is held on the sliding arm (48) and which acts on a pressure piece (62), which is held on the housing arrangement (34),
   characterised in that the housing arrangement (34) has a first housing part (40) with a housing interior (46) having an opening (132), which faces the first abutment surface (26; 280) and by means of which the sliding arm (48) can be brought into the housing interior (46) during production of the clamp, and that a second housing part (130) is fastened to the housing arrangement (36) to close the opening (132).
2. Clamp according to claim 1, characterised in that the second housing part (130) is configured as a housing cover.
3. Clamp according to claim 1 or 2, characterised in that the second housing part (130) is locked on the housing arrangement (34).
4. Clamp according to one of the preceding claims, characterised in that the second housing part (130) is fastened to the first housing part (40).
5. Clamp according to one of the preceding claims, characterised in that an abutment element (146), on which the second abutment surface (148) is formed, is held at least partially on the second housing part (130).
6. Clamp according to one of the preceding claims, characterised in that the first housing part (40) has a structure, which is L-shaped in cross-section, with a longitudinal region (42), which extends along the slide rail (12; 240), and with a transverse region (44), which extends transversely to the slide rail (12; 240), and in particular in that the first bearing means (36) and the second bearing means (38) are arranged on the longitudinal region (42), and in particular in that the pressure piece (62) is arranged on the transverse region (44).
7. Clamp according to one of the preceding claims, characterised in that a holding element (66) is arranged in the housing interior (46) to hold the first bearing means (36), the second bearing means (38) and the pressure piece (62), and in particular in that the holding element (66) holds rollers (90, 94; 106, 108) of the first bearing means (36) and the second bearing means (38), and in particular in that one or more rollers (90, 94) of the first bearing means (36) and/or the second bearing means (38) are rotatably held, and in particular in that the holding element (66) has pairs of recesses (62a, 82b, 104a, 104b) respectively with a first recess and an opposing second recess, in which a pin (88, 92; 106, 108) is respectively seated, and in particular in that the second housing part (130) has opposing tongues (136a, 136b) with recesses (142a, 144a; 142b, 144b), into which pins (106, 108) of the second bearing means (38) are at least partially inserted, and in particular in that the holding element (66) is made from a metal material, and in particular in that the holding element comprises a first limb (68a), a parallel spaced second limb (68b) and on a face at least one connecting web (70) between the first limb (68a) and the second limb (68b), and in particular in that the first limb (68a) and the second limb (68b) are respectively L-shaped, and in particular in that the at least one connecting web (70) is positioned in the region of the opening (132) of the first housing part (40), and in particular in that the holding element (66) has an open face, which lies opposite the face with the at least one connecting web (70).
8. Clamp according to one of the preceding claims, characterised in that a roller holding element (142) is arranged in the housing interior (46) to hold rollers (90; 94) of the first bearing means (36), and in particular in that the roller holding element (124) is arranged in the region of a first face (110) of the first housing part (40) remote from the fixed arm (22; 244), and in particular in that the roller holding element (124) has a first recess pair of spaced recesses (128a) and a second recess pair of spaced recesses (128b), in which a respective roller (90; 94) is inserted, and in particular in that a holding element (66) for the first bearing means (36) and the second bearing means (38) is slid with an open end onto the roller holding element (124).
9. Clamp according to one of the preceding claims, characterised in that the first housing part (40) comprises recesses (96a, 96b; 98a, 98b), into which pins (88; 92) of the first bearing means (36) are at least partially inserted.
10. Clamp according to one of the preceding claims, characterised in that the slide rail (12; 240) is guided through the first abutment surface (26; 280) and the second abutment surface (148).
11. Clamp according to one of the preceding claims, characterised in that the housing interior (46) is closed at a face opposite the second abutment surface (148) except for a recess (112), through which the slide rail (12; 240) is passed.
12. Clamp according to one of the preceding claims, characterised in that the housing interior (46) is closed on an underside (116) and/or an upper side (118) of the housing arrangement (34) and/or in that the housing interior (46) is laterally closed.
13. Clamp according to one of the preceding claims, characterised in that the fixed arm (22) has at least one blocking element (172; 186), which in a locking position blocks the movement of the fixed arm (22) relative to the slide rail (12) at least in one direction, and that an actuation device is provided, by means of which the inclination of the at least one blocking element (172; 186) is variable such that the fixed arm (22) is displaceable on the slide rail (12) for adjustment of its position on the slide rail (12).
14. Clamp according to the preamble of claim 1 or one of the preceding claims, characterised in that at least one slide rail abutment element (284) is seated on the slide rail (12; 240) and has at least one abutment surface (290; 291), which is oriented transversely to the first abutment surface (26; 80) and transversely to the second abutment surface (148).
15. Method for producing a clamp according to one of the preceding claims, in which the sliding arm is inserted into the first housing part from the opening.

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