DE7006295U - DEVICE FOR CONNECTING A PIT STAMP TO A CAP OR SOLE RAIL. - Google Patents

Description

PATENTANWALT BODE ■ 4033 HOSEl '· POStfACH'1140 · TELEFON 02102 - «Ml · TELEX 8585166

R 1-284

G 7o o6 295.2

August 28, 1973

GULLICK DOBSON LIMITED
Ince, Wigan, Lancashire, England

Device for connecting a pit punch to a cap or sole rail

The invention relates to a device for connecting a pit punch with a cap or sole rail, with one the cap or the sole rail associated receiving part, which receives one end of the pit punch, wherein in the Stamp a through transverse hole is provided, which extends from a point between their ends to the ends widened out and through which a connecting element fastened to the receiving part is inserted, and wherein on the punch a pressure medium connection is provided which is connected to a supply line and opens radially into the punch.

A connecting device of the type mentioned is known in which the transverse bore extends from the center to the ends widened funnel-shaped. This connecting device is used to prevent a cap from being lifted off a pit punch secure, but at the same time allow an angular movement between the cap and pit punch. The known device however, it has the disadvantage that the cap relative to the punch or the punch relative to the cap about the longitudinal axis of the stamp can twist. For example, the pressure medium connection of the stamp can be displaced and damaged

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PATENTANWALT BODE · 4033 "HOSEL * · POST BOX * 1140 'TELEPHONE 02102-MBi- TELEX 8585166

and the cap can be pivoted into the area of an adjacent cap, which also causes damage can be. In addition, the punch is enlarged by the funnel-shaped bore in its load-bearing cross-section considerably weakened, so that with its usual heavy load there are easily permanent deformations in the area the hole can come.

In another known connecting device it is provided that the spherical head of a pit punch has a transverse bore narrowing over a step, the other Section is longer than the narrower section and through which a holding rod is inserted. On the handrail is a ball pushed inside the cross hole in the ball center of the ball head of the pit punch? is locked. Here, too, the stamp and cap are against each other The longitudinal axis of the stamp can be rotated, and the load-bearing cross section of the stamp head is also considerable Dimensions weakened.

It is the object of the invention to provide the connecting arrangement mentioned at the outset to be developed in such a way that the support strut and the receiving part are angularly movable against one another, however, that they cannot twist against one another about the longitudinal axis of the support strut and that no excessive Weakening of the load-bearing cross-section of the punch occurs.

According to the invention this object is achieved in that the outer bore only widens in one plane, that of the longitudinal axis of the punch and that of the longitudinal axis of the outer bore is spanned while in a perpendicular to it, the first plane in the longitudinal axis of the transverse bore

PATENTANWALT BODE · 4033'HOSEL · POST BOX ι140 '■ TELBPON 02102- «■■ · TELEX 8585166 /

intersecting plane has a constant clear width, which represents a sliding seat for the connecting element. With such a connecting device there is no significant weakening of the load-bearing cross-section of the punch instead, since the transverse bore only expands in the longitudinal direction of the punch. At the same time becomes a mutual Rotation of the stamp and receiving part around the longitudinal axis of the stamp avoided. The angular mobility between On the other hand, the stamp and the receiving part are not impaired. The stamp and the receiving part are also in constant contact with each other or in close proximity. It is not possible to lift the receiving part off the stamp.

The connecting element is useful as a stc-rrer bolt or other rigid component formed. However, it can also be designed as a section of a rope or some other traction device be, which may result in additional mobility due to the flexibility of the traction device. The connecting element is expediently secured on the stamp and / or on the receiving part.

The stamp is expediently mounted in the receiving part in a concave-convex bearing device. For example a convex bearing surface can be provided at the end of the stamp be, which rests against a concave bearing shell assigned to the receiving part. The opening in the stamp can in a known manner from the middle between their ends to the ends.

An example embodiment of the subject matter of the invention is explained in more detail below with reference to the drawing, in which

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PATENTANWALT BODE · 4033 HOSEL ■ POSTl = ACH 1140 TELEPHONE 02102-βΒβ · TELEX 8585166

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Fig. I is a perspective view of a self-advancing one Pit lining element provided with connecting devices according to the invention,

2 shows a section through a stamp head and the cap attached to it,

Fig. 3 is a string view of a punch head with a Most embodiment of the opening and

(This is followed by the originally presented description beginning with page 5 of the documents originally submitted unchanged.)

PATENT ADVERTISER BODE. 4033 HÖSEL POST BOX TELEPHONE 02102-61701 TELEX 8585166

4 shows a side view of a stamp head with a second embodiment of the opening shows.

The pit lining element shown in Fig. 1 has a base plate 7, a cap structure resting on the hanging wall 8 and a pre-pledging cap 9, which is articulated on the cap structure 8 is attached. The caps kc;> construction 8 and the Pre-pledging caps 9 are carried by double-acting hydraulic pit rams 11 which are mounted on a base plate 7 are,

The head 10 of one or all of the pit punches 11 is provided with a convex bearing surface 12 which is attached to a concave bearing shell 13 rests, which is arranged on the underside of the cap structure 8 (see. Fig. 2). In this way one becomes all-round movable connection between the cap structure 8 and the punch head 10 made so that an adjustment the cap construction is possible due to irregularities in the course of the hanging wall.

The stamp head 10 is provided with an opening 15, which for Serves to receive a bolt 17, which is fastened on both sides to two support brackets 18 which are connected to the cap structure 8 are connected or form part of them.

The opening 15 is widened in a plane in which the The longitudinal axis of the punch 11 and the longitudinal axis of the bolt 17 run (see FIGS. 2 and 3). The top and bottom walls of the opening 15 diverge from the axis of the punch 11 to the ends of the opening 15, as shown at 16 is.

PATENTANWALT BODE 4033 HÖSEL POST BOX TELEPHONE 02102-61701 TELEX 8585166

The width of the opening 15 is dimensioned so that a sufficient tight sliding fit on the shaft of the bolt 17 results.

The bolt 17 is intended to establish a connection between the Kappenkons cruktion 8 and the punch head, which is a solution prevents both parts from each other and which makes it possible, when advancing the expansion element, the cap construction 3 by shortening or retracting the punch 11 from the hanging wall, whereby the connection between the cap structure 8 and the punch head must also absorb tensile forces. Here, the cap construction 8 can move to a limited extent on the punch head. This possibility of movement depends on the vertical extent of the widenings of the opening 15 at both ends. Due to the small width However, after the opening, the punch 11 cannot rotate about its longitudinal axis relative to the cap construction 8.

The inventive design of the opening 15, 16 allows the best possible compromise between the required strength and the required flexibility of the connection. In addition, a buckling stress under load is avoided, which would occur if a slot with a constant Cross section would be used.

The stamp 11 can advantageously be provided with further components, for example with a pressure medium connection 19.

In the embodiment shown in Fig. 4 are parallel soite walls of the opening 15 are not completely flat, but here the opening 15 is provided in the middle with a widening, as shown at 15a. This widening 15a extends over the entire length of the opening

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PATENT LAWYER «ODE. 4033 HÖSEL POST BOX TELBFON 02102-61701 TELEX 8585166

and is intended to insert the bolt 17 during manufacture and facilitate assembly of the connection «

The lower ends of the punch 11 can be attached to the base plate 7 in the same way as the punch heads the cap construction 8 are attached »

The term "support strut" used in the description is intended to refer not only to hydraulic cylinders, but to all of them conceivable components that exert forces on parts to be supported.

- Patent claims:

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Claims (1)

PATENTANWALT BODE · 4033 HOSEL · POST BOX 1140 ■ TELEPHONE 02102-βΗβ ■ TELEX 8585166 Rl- 284 G 7ο ο6 295.2 August 28, 19 7 3 (New) protection of claims: 1. Device for connecting a pit punch with a Cap or rail, with one of the cap or the sole rail associated receiving part, which is one end of the Pit punch receives, wherein a through transverse bore is provided in the punch, which extends from a Place widened between their ends towards the ends and through which a attached to the receiving part Connection element is pushed through, and where ar> dem Stamp a pressure medium connection connected to a supply line is provided which opens radially into the stamp ,characterized, that the transverse bore (15) widens only in one plane from the longitudinal axis of the punch (11) and is spanned by the longitudinal axis of the transverse incline (15), while in a perpendicular to it, the first level in the longitudinal axis of the transverse bore (15) intersecting plane has a constant clear width, which for the connecting element (17) represents a sliding fit. 2. Apparatus according to claim 1, characterized that the connecting element (17) is a rigid component. 3. Apparatus according to claim 1, characterized in that the connecting element (17) section a rope or other traction device. PATENTANWALT BODE · 4033 NOSEl ■ POSVrACH 1140 ¹ TELEHON 02102-βΒΒ · TELEX 8585166 ■ +. Device according to one or more of claims 1-3, characterized in that the receiving part (8) and the stamp (11) in constant Maintained contact with each other or in close proximity will. 5. Device according to one or more of claims 1-4, characterized in that ■ '' 3 of the The punch (11) is mounted in the receiving part (8) in a concavo-convex bearing device (12, 13). 5. Device according to one or more rir.r claims 1 - 5, characterized in that the opening (15, 16) in the punch (11) is known per se White widened from the middle between the ends to the ends hiu. 7. The device according to one or more of claims 1-5, characterized in that the Opening (15, 16) in the punch (11) additionally has a lateral widening (15a) extending over its length 8. Apparatus according to claim 7, characterized that the widening (15a) as an axial bore extending over the length of the opening is executed. II / sch