CN116653799A - Buckle assembly, interior trim piece buckle system and buckle method - Google Patents

Abstract

The invention relates to a buckle assembly, an interior trim part buckle system and a buckle method. A snap-in assembly for securing an interior trim part in a vehicle to a vehicle body part, comprising a base body (4) made of plastic and an insert (5) made of sheet metal, the base body (4) being intended to snap into a hole (15) made in the vehicle body part (3), the insert (5) being designed as a leaf spring and intended to receive a pillar (21) provided on the interior trim part; a snap-in part is provided on the base body (4) and a corresponding snap-in part is provided on the insert (5), which snap-in part engages in from the rear side, so that the base body (4) and the insert form a structural unit which is preassembled together and can be preassembled on the body part (3) before receiving the pillar.

Description

Snap assembly, interior trim snap system and snap method

technical field

The invention relates to a buckle assembly for fixing an interior trim in a vehicle to a body part, an interior trim buckle system for fixing to a body part, and a snap-on system for fastening an interior trim and a body part to each other buckle method.

Background technique

Snaps are known in the prior art for fixing various components together in a vehicle, for example panels, frames, etc. can be fastened together via snaps. The clip made of plastic consists of two parts formed in one piece, the first part is connected to the interior part and the second part is connected to the body part. An annular groove is provided on the outer periphery of the first part at one end of the buckle, and the end of the buckle is embedded into a correspondingly formed opening in the interior trim, and the edge of the opening is embedded into the buckle In the annular groove on the upper, the buckle and the interior trim are pre-installed together. The second part of the buckle has a deformable plug-in part, and a receiving groove is formed on the outer periphery of the buckle between the plug-in part and the first part of the buckle. The plug-in part can be inserted into a hole made by stamping in the body part. Since the diameter of the plug-in part is larger than the diameter of the hole, the plug-in part needs to be elastically deformed in order to insert the plug-in part into the hole. . When the plug-in part is embedded in the hole, the edge of the hole in the body part is embedded in the receiving groove on the plug-in part and the plug-in part returns to its original shape, so that the pre-installation composed of the buckle and the interior part Components are held securely on body parts.

However, body parts are usually produced from sheet metal, the holes in which are produced by stamping, and therefore inevitably have burrs and have sharp edges. During the process of loading and dismounting the buckle, the buckle will be damaged by the shearing of burrs and edges, so that the buckle will fail.

In order to allow the elastic deformation of the plug-in part when it engages in the bore of the body part and at the same time to meet the ergonomic requirements during installation, the plug-in part is designed as a thin-walled component. This makes the snaps often prone to damage.

Furthermore, when inserting the plug-in part into the hole, it is desirable to align the axis of the plug-in part with the axis of the hole and insert the plug-in part into the hole along the axis of the hole perpendicular to the surface of the body part to be fitted. However, in the actual installation process of the interior parts, since one end of the interior part must be installed first, and the other end of the interior part equipped with the buckle has to be installed into the hole of the body part through deflection, in this case When the buckle is inserted into the hole, the axis of the buckle and the axis of the body part often do not coincide, but have an included angle. Here, when the buckle is pressed in with an impact force, one side of the buckle is subjected to a greater force, and the force on the whole buckle is not uniform, resulting in the side with the greater force being cut off .

In addition, holes made in body parts have large manufacturing and installation tolerances caused by variations in the diameter of the holes as well as variations in position, resulting in misalignment between the axis of the snap and the axis of the hole. overlap, and then when the plug-in part of the buckle is inserted into the hole, the plug-in part is subjected to uneven force and causes damage to the plug-in part.

After the buckle part fails, there is a gap between the interior part and the body part because the interior part is not positioned, and it is easy to vibrate, resulting in noise and water leakage. In addition, after the clip is damaged, it is not easy to be taken out to replace a new clip, which affects the assembly efficiency and assembly quality.

Contents of the invention

Based on this, the task of the present invention is to provide an improved buckle assembly for fixing an interior trim in a vehicle to a body part, the snap assembly can realize the snapping of the interior trim to the body part more easily. body parts and are less prone to damage.

Said object is achieved by the snap assembly for fastening an interior trim in a vehicle to a body part according to the invention as follows:

The snap-fit assembly comprises a base body made of plastic and an insert made of sheet metal for snapping into a hole made in a body part, the insert being formed as a leaf spring and To receive the columnar body arranged on the interior trim; a buckle part is provided on the base and a corresponding buckle part is provided on the insert, and the corresponding buckle part engages the buckle from the back part, so that the base body and the insert form a structural unit which is preassembled together and which can be preassembled on the body part before receiving the column.

The invention is based on the idea that, in order to eliminate the fact that, on the one hand, the clips which are first fixed at one end of the interior part and which are arranged at the other end have to engage in the body part by the deflection of the interior part and on the other hand the holes in the body part Due to the tolerances of the manufacturing and installation conditions, the installation direction of the buckle device is inconsistent with the axis direction of the hole in the body part, which in turn leads to the uneven force and the impact on the body part during the installation process of the buckle device. The shearing of burrs can cause damage. The present invention creatively proposes to improve the buckle device pre-assembled on the interior trim into a buckle assembly that can be pre-assembled on the vehicle body, and at the same time integrate the integrated The buckle device is improved to a two-piece snap assembly, that is, according to the invention, the snap assembly includes a base body made of plastic and an insert made of sheet metal, wherein the base body is responsible for engaging with the body parts, During the crimping, it is easy to ensure that the axis of the basic body coincides with the axis of the hole in the body part, so that there is a better adaptability to the tolerances of the holes in the body part due to manufacturing and installation conditions. The insert made of metal spring is responsible for receiving and clamping the columnar body arranged on the interior trim. The metal spring sheet itself has good elastic deformation performance, so the insert made of the metal plate makes it easy to embed and snap the columnar body on the interior trim to make the interior trim snap onto the body part.

According to a preferred embodiment of the snap-fit assembly according to the invention, the insert is a one-piece sheet metal profile. Insert blanks are obtained by punching from sheet metal, followed by stamping and forming of the blanks to obtain inserts that can be mounted into the matrix. The insert that can be obtained in this way is structurally simple and indestructible.

According to a preferred embodiment of the buckle assembly of the present invention, the insert includes a first bottom, a side arm and a first flange connected to the side arm, wherein the side arm of the insert is provided with a The window-shaped portion configured as the corresponding buckle portion is cut and formed, and the window-shaped portion protrudes obliquely upwards and outwards from the side arm. The counter catch can thus be produced in a simple manner.

According to a particularly preferred embodiment of the snap-fit assembly according to the invention, it is provided that the basic body has a second bottom, a peripheral wall and a second flange connected to the peripheral wall on the side opposite the second bottom, at the bottom of the basic body A wedge-shaped protruding portion configured as a snap-fit portion is integrally formed on the inner side of the peripheral wall, and the window-shaped portion engages the protruding portion from the back, so that the base body and the insert are snapped together. This enables a simple snap-fitting of the base body and the insert so that the insert is prevented from being pulled out of the base body.

According to a particularly preferred embodiment of the snap-fit assembly according to the invention, on the side arm of the insert above the window there is also an inwardly protruding window substantially parallel to the first bottom over the entire width of the insert. An extended rib-shaped projection, which is formed by stamping the insert and is intended to engage in a corresponding recess on the cylinder of the interior trim. The protruding part is formed by stamping, which realizes the simple forming of the protruding part, and the protruding part extends over the entire width of the insert to ensure a reliable buckle between the insert and the column, so that even if the installation direction of the column is different from that of the column An easy and non-destructive snapping of the cylinder into the insert is also possible without coincidence of the axes of the basic bodies.

According to a particularly preferred embodiment of the invention, a flexible edge protruding obliquely downwards from the second flange is integrally formed on the outer circumference of the second flange of the basic body, said edge being elastically deformable and resting on the basic body. When mounted on a body part, it can be pressed against the surface of the body part. In this way, it is possible to prevent pollutants such as water and dust from entering the vehicle body from the outside and causing corrosion of the metal body parts due to rust.

According to a further preferred embodiment of the present invention, a sealing ring is arranged around the outer periphery of the base body under the edge portion, and when the base body is embedded in the hole of the body part, the sealing ring is arranged between the edge portion and the body part. between components. In this way, the sealing performance between the base body and the body parts is further improved, and pollutants are prevented from entering the body from the outside to cause pollution and damage to the body.

According to a preferred embodiment of the present invention, a plurality of evenly distributed wedge-shaped protrusions are integrally formed on the outer side of the peripheral wall of the base body, for snapping the base body into holes in the body parts. By providing a plurality of evenly distributed protrusions, the base body can be snapped into the hole of the vehicle body component through local deformation of the base body, so that the base body can enter the hole more easily. At the same time, reliable positioning of the base body in the hole of the vehicle body is ensured due to the uniform distribution of the protrusions on the outer side of the peripheral wall of the base body.

The object of the invention is furthermore achieved by an interior snap-fit system for fastening to a body part, which comprises a snap-fit assembly according to the invention pre-assembled on a body part and provided with a column The interior part of the body, the columnar body can be inserted into the insert of the buckle assembly and interlocked with the insert, so that the interior part can be positioned on the body part. In the case that one end of the trim part is fixed, the column on the other end of the trim part can also be deflected into the insert in the snap-fit assembly that has been pre-installed on the body part through the deflection of the trim part and snap into place with the insert catch. The columnar body provided on the interior trim itself can be snapped with the insert only through the deformation of the insert formed as a spring leaf without deformation, so the columnar body can be formed with a relatively high strength, which further reduces the buckle mechanism. Possibility of damage during installation.

According to a preferred embodiment of the buckle system for the interior trim of the present invention, the width of the columnar body is smaller than the width of the insert, but greater than the width of the gap between the insert and the base. Based on this, the cylinder can slide along the protrusion of the insert, so that the adaptation to the tolerance of the installation direction and the hole in the body can be achieved, while still ensuring a stable and reliable clamping between the insert and the cylinder catch.

According to a preferred embodiment of the snap-fit system for interior parts according to the invention, a gap can exist between the first bottom of the insert and the second bottom of the basic body when the interior part is already installed on the body part. , and there can also be a gap between the first flange of the insert and the second flange of the base body. As a result, the insert is only prevented from being pulled out from the base through the buckle part on the base body and the corresponding buckle part on the insert, and even after the buckle part and the corresponding buckle part are buckled, the insert can still The slight movement towards the bottom of the main body enables the absorption of downward forces acting on the interior part, for example by footsteps.

According to a preferred embodiment of the snap-fit system for an interior trim of the invention, the cylindrical body is tapered at the end remote from the interior trim. This makes it possible for the columnar body to easily penetrate into the insert even when it is inserted by deflecting the interior part, reducing the possibility of colliding with the insert during installation.

According to a preferred embodiment of the buckle system for interior parts of the present invention, ribs are provided on the columnar body, so as to further improve the strength of the columnar body and reduce the risk of breaking the columnar body during the process of embedding the buckle assembly. risk.

The object of the invention is also achieved by a method for snapping an interior trim and a body part to one another by means of the snap-fit assembly according to the invention, the method comprising the following method steps:

The insert made of sheet metal is embedded in the base body made of plastic and the corresponding snap-in part provided on the insert engages the snap-in part provided on the base body from the rear, so that the base body and insert form a pre-assembly Snap components together;

inserting the snap assembly into a hole in the body component;

Embedding the columnar body of the interior trim into the insert and engaging with the insert.

According to the invention, the snap-fit assembly comprising a base body made of plastic and an insert made of sheet metal can be preassembled on a body part, wherein the base body is responsible for the engagement with the body part, which can be easily It is ensured that the axis of the base body coincides with the axis of the hole in the body part, so that the snap assembly can be easily and indestructibly embedded in the body part. The inserts made of sheet metal receive the columns arranged on the interior trim. The metal plate formed as the spring leaf itself has good elastic deformation performance, so it is easy to embed the columnar body on the interior trim and thus make the interior trim snap onto the body part.

Description of drawings

The present invention will now be described in detail hereinafter with reference to the accompanying drawings. It is to be understood that the drawings are not necessarily drawn to scale and that the drawings are only intended to illustrate exemplary embodiments of the invention and are not to be considered limiting of the invention. in:

Figure 1 shows a longitudinal sectional view of an interior trim snap-fit system according to the present invention;

Figure 2 shows a perspective view of an interior trim snap-fit system according to the present invention;

Figure 3 shows a cross-sectional view of a latch assembly according to the present invention;

Fig. 4 shows a view of the buckle system of an interior trim, viewed along a direction perpendicular to Fig. 1 , wherein the columnar body can move inside the insert;

Fig. 5 shows another view of the buckle system of the interior trim, wherein the columnar body of the interior trim is embedded into the buckle assembly along the axis of the buckle assembly;

FIG. 6 shows a further illustration of the snap-fit system for an interior trim, in which the cylinder of the trim is engaged in a deflectable manner in the insert.

Detailed ways

Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings. However, it should be understood that the description of the embodiments is only illustrative, not as any limitation on the technology of the present invention. It should also be understood that the embodiments of the present invention can be combined in various ways to provide even more additional embodiments.

It should be understood that in the drawings, like reference numerals refer to like elements. In the drawings, the size of some components may be deformed, enlarged or reduced for clarity.

Unless otherwise specified, all terms used in the specification have the meanings commonly understood by those skilled in the art. Well-known functions or constructions are not described in detail for brevity and/or clarity.

Unless otherwise specified, the singular forms "said" and "the" used in the specification may include plural forms. The terms "comprising", "comprising" and "comprising" are used in the specification to indicate the presence of claimed features but not to exclude the presence of one or more other features. The term "and/or" used in the specification includes any and all combinations of one or more of the relevant listed items.

In the following, unless otherwise stated, "left", "right", "upper", "lower", "front", "rear", "high", "low", etc. refer to directions in the drawings of. It should be understood that spatially relative terms such as "upper", "lower", "left", "right", "front", "rear", "higher", "lower", etc. are intended to describe a characteristic Relationship to another feature in the drawing. It should be understood that the terms of spatial relationship include not only the orientations shown in the drawings, but also different orientations of the interior trim buckle system in use or operation. For example, features originally described as "below" other features when the trim snap system in the figures is turned upside down, would now be described as "above" the other features. The trim snap-in system could also be oriented in other ways (rotated 90 degrees or at other orientations), in which case the relative spatial relationship will be interpreted accordingly.

Exemplary embodiments of a snap assembly and an interior trim snap system according to the present invention will now be described in detail with reference to FIGS. 1 to 6 .

As shown in Figures 1 to 3, the buckle assembly 1 according to the present invention comprises a barrel-shaped base 4, an insert 5 and a sealing ring. The base body 4 is made of plastic, while the insert part 5 is formed as a sheet-metal profile and made of metal. Sealing ring 6 is made of rubber. The buckle assembly 1 is pre-installed in a part of the vehicle, such as a body part.

The insert 5 is formed as a one-piece leaf spring, said insert having a first base 7 , side arms 8 , 9 and first flanges 10 , 11 connected to the side arms. On the side arms 8, 9 of the insert 5 there are punched-out windows, on the underside of which windows are connected a window 12 integral with the side arms and protruding obliquely from the side walls , the window 12 is made of material punched out from the side arm.

The base body 4 has a second bottom 16 , a peripheral wall 17 and a second flange 18 connected to the peripheral wall 17 on the side opposite the second bottom 16 . The basic body 4 is provided with an integrally formed wedge-shaped projection 13 on the inner side of its peripheral wall. When pre-assembling the buckle assembly 1, the insert 5 is embedded into the base body 4 along the axis A of the base body 4. When the window-shaped part 12 contacts the protruding part 13, the window-shaped part is pressed by the protruding part 13 12 springs inward toward the central axis of the base body 4 . The insert 5 is moved further towards the second bottom 16 of the base body 4 until the window 12 passes over the protrusion 13, and then the window springs back to its initial position and can abut against the lower side of the protrusion 13 with its upper side side, thereby preventing the insert 5 from being pulled out of the base body 4.

As can be clearly seen in conjunction with FIGS. 1 to 6, a plurality of evenly distributed wedge-shaped projections 14 are integrally formed on the outer side of the peripheral wall of the base body 4, for example, four wedge-shaped projections 14 are formed in the illustrated embodiment. . When the axis direction of the base body 4 coincides with the axis of the hole 15 in the body part, and the base body is embedded in the hole 15 along the axis of the hole 15, when the protrusion 14 on the base body 4 contacts the peripheral wall of the hole 15, The base body 4 is slightly deformed. The movement of the base body 4 continues until after the protrusion 14 has passed the hole 15 , the base body 4 returns to its original shape and its wedge-shaped protrusion 14 engages the hole 15 from behind.

On the outer periphery of the second flange 18 of the base body, a flexible edge portion 22 protruding obliquely downward from the second flange is formed, the edge portion is elastically deformable and can be compressed when the buckle assembly is installed. On the surface of the body part 3 to prevent external water and dust from entering the body part through the gap between the base body 4 and the body part 3 . In order to further enhance the sealing performance, a sealing ring 6 is arranged around the outer periphery of the base body below the edge portion. When the base body 4 is embedded in the hole 15 of the body part 3, the sealing ring 6 is arranged between the edge 22 of the base body 4 and the body. between parts 3. Good sealing performance of the buckle assembly 1 is achieved through the joint action of the edge portion 22 and the sealing ring 6 .

As can be seen clearly from FIGS. 1 to 3 , on the side arms 8 , 9 of the insert 5 above the window 12 there are also provided inwardly protruding ribs extending substantially parallel to the first bottom 7 . Shaped protruding portion 19, which is formed by stamping the insert. On another component of the vehicle, for example the interior trim 2, a columnar body 21 is formed, on the side of which columnar body a groove 20 is formed. The cylinder 21 can be inserted into the insert 5 such that the protrusion 19 on the insert 5 and the groove 20 on the cylinder engage each other. As an alternative embodiment, it is also conceivable to provide a cam on the cylindrical body 21 which engages the projection from behind after the cylindrical body has been inserted into the insert 5 .

The assembly process of fixing the interior trim 2 to the body part 3 through the buckle assembly 1 will be described in detail below. Firstly, the insert 5 and the base body 4 are preassembled in such a way that the insert 5 is inserted into the base body 4 such that the window 12 of the insert 5 goes over the protruding portion 13 of the base body 4 and can engage and protrude from the rear Section 13. The pre-assembled unit of the insert 5 and the base body 4 is then inserted as a whole into the hole 15 of the body part 3, so that the wedge-shaped protrusion 14 on the outer side of the peripheral wall of the base body engages the hole 15 from the rear and makes the mounting on the base body 4 The flexible edge 22 on the outer circumference of the second flange 18 is pressed against the body part 3 . Thereafter, the columnar body 21 of the interior trim 2 is inserted into the insert 5 , so that the column 21 and the insert 5 engage with each other, thereby realizing relative positioning of the interior trim 2 and the body part 3 .

Here, it should be pointed out that, as can be clearly seen from FIGS. 4 and 6 , the width of the columnar body 21 is smaller than the width of the side arms 8 , 9 of the insert 5 , so that when the interior trim 2 is mounted on the vehicle body In the case of part 3 the cylinder 21 is still able to slide in the width direction of the arm along the protrusion 19 which extends over the entire width of the arm. Based on this, the interior trim 2 can be more easily installed into the buckle assembly. Even when one end of the interior trim 2 is fixed so that the other end of the interior trim 2 is equipped with a columnar body 21 and is embedded in the snap assembly 1 by deflection, although the axis of the column does not coincide with the axis of the snap assembly, but At a certain angle, since the width of the columnar body 21 is smaller than that of the insert 5, the columnar body can still slide in the insert, so that the installation can be easily realized.

It should further be pointed out and as clearly shown in FIG. 2 that when the interior trim 2 is already installed on the body part 3 , between the first bottom 7 of the insert 5 and the second bottom 16 of the base body 4 There is a gap between the first flanges 10, 11 of the insert and the second flange 18 of the base 4, so that through the window 12 of the insert 5 and the protrusion 13 of the base 4, only Prevents the insert 5 from being pulled out of the base body along the axis A of the base body 4, while the insert can still achieve a slight movement along the longitudinal axis of the base body 4 in the direction of the second bottom 16 of the base body 4, so that it can absorb the effect on the interior trim downward force.

List of reference signs

1. Buckle assembly

2. Interior parts

3. Body parts

4. Substrate

5. Insert

6. Sealing ring

7. First Bottom

8. Side arms

9. Side arms

10. First flange

11. First flange

12. Window

13. Projection

14. Raised

15. hole

16. Second Bottom

17. Surrounding wall

18. Second flange

19. Projection

20. Groove

21. Cylinder

22. Edge

A. Axis.

Claims (14)

1. A snap-in assembly for securing an interior trim part in a vehicle to a vehicle body part, comprising a base body (4) made of plastic and an insert (5) made of sheet metal, the base body (4) being intended to snap into a hole (15) made in the vehicle body part (3), the insert (5) being designed as a leaf spring and intended to receive a pillar (21) provided on the interior trim part; the base body (4) is provided with a snap-in portion and the insert (5) is provided with a corresponding snap-in portion, which engages in the snap-in portion from the rear, so that the base body (4) and the insert (5) form a structural unit which is preassembled together and can be preassembled on the body part (3) before receiving the pillar.

2. The buckle assembly according to claim 1 wherein the insert is a one-piece sheet molding.

3. A clasp assembly according to claim 1, characterized in that the insert (5) comprises a first base (7), side arms (8, 9) and first flanges (10, 11) connected to the side arms, wherein window-shaped parts formed by punching, which window-shaped parts project obliquely outwards and upwards from the side arms, are provided on the side arms of the insert (5) which are configured as the corresponding clasp parts.

4. A snap-in assembly according to claim 3, characterized in that the base body (4) has a second bottom (16), a peripheral wall (17) and a second flange (18) connected to the peripheral wall on the side opposite the second bottom (16), on the inner side of the peripheral wall of which base body there is integrally formed a wedge-shaped projection (13) which is formed as a snap-in part, said window-shaped part engaging said projection (13) from the rear side, so that the base body (4) and the insert (5) snap-in with each other.

5. A clasp assembly according to claim 4, characterized in that on the side arms of the insert (5) above the window (12) there is also provided an inwardly projecting prismatic projection (19) extending substantially parallel to the first bottom (7) over the entire width of the insert (5), which projection (19) is formed by stamping the insert and is intended to be inserted into a corresponding recess (20) on the pillar (21) of the interior trim part (2).

6. A catch assembly according to claim 4, characterised in that a flexible rim portion (22) projecting obliquely downwards from the second flange (18) of the base body (4) is formed on the outer periphery of the second flange, said rim portion being elastically deformable and being capable of pressing against the surface of the body part (3) when the base body (4) is mounted thereon.

7. A snap assembly according to claim 6, characterized in that a sealing ring (6) is arranged around the periphery of the base body below the rim portion (22), which sealing ring (6) is arranged between the rim portion and the body part (3) in the case of the base body (4) being embedded in the hole (15) of the body part.

8. A snap-in assembly according to one of claims 1 to 3, characterized in that a plurality of evenly distributed wedge-shaped protrusions (14) are integrally formed on the outer side of the peripheral wall of the base body (4) for snap-in of the base body (4) into the holes (15) of the body part (3).

9. Interior trim part fastening system for fastening to a vehicle body part (3), comprising a fastening assembly according to one of claims 1 to 8 preassembled on a vehicle body part (3) and an interior trim part provided with a pillar (21), the pillar (21) being insertable into an insert (5) of the fastening assembly and being mutually clamped with the insert (5) such that the interior trim part can be positioned on the vehicle body part (3).

10. The interior trim part fastening system according to claim 9, wherein the width of the pillar (21) is smaller than the width of the insert (5) and larger than the width of the gap between the insert and the base body.

11. The interior trim part fastening system according to claim 9, characterized in that, in the case where the interior trim part (2) has been mounted on the body part (3), a gap can exist between the first bottom (7) of the insert (5) and the second bottom (16) of the base body (4) and a gap can also exist between the first flange (10, 11) of the insert (5) and the second flange (18) of the base body (4).

12. The interior trim part fastening system according to one of claims 9 to 11, characterized in that a rib is provided on the pillar (21).

13. The interior trim part fastening system according to one of claims 9 to 11, characterized in that the pillar (21) is formed tapering at an end remote from the interior trim part (2).

14. Method for snapping interior trim parts and body parts to each other with a snap assembly according to one of the claims 1 to 8, the method comprising the method steps of:

embedding an insert (5) made of sheet metal and configured as a spring leaf into a base body (4) made of plastic, and the corresponding fastening part arranged on the insert (5) being in engagement with the fastening part arranged on the base body (4) from the back, so that the base body (4) and the insert (5) form a fastening assembly preassembled together;

-inserting the snap assembly into a hole (15) in a body part (3);

the columnar body (21) of the interior trim part (2) is embedded into the insert (5) and is clamped with the insert.