DE7306074U - Device for play-free and loose connection of components - Google Patents

Description

Daimler-Benz Aktiengesellschaft Daim 95 * t5aA Stuttgart-Untertürkheim February 12, 1973 Utility model registration

"Device for play-free and detachable connection of components"

The innovation relates to a device for play-free and releasable connection of a wave-shaped section with a tubular section of a rod whose connection area receives a part which acts at an angle thereto.

Such connections are required wherever, for example, there is a pivoting movement via a lever in a connecting rod to initiate, at both ends a to be adjusted Organ is arranged. Because of a possible exchange of the organ, the connection must be easily detachable, after re-joining the parts, the original accuracy and the position of both organs to each other without Adjustment must be achieved again. These requirements require a type of connection that is extremely low Tolerances.

To meet the requirements listed, a device for play-free and releasable connection of a wave-shaped Proposed section with a tubular portion of a rod, the connection area angled to this

- 2 -: ": - ' Daim 954 5a / 4

March 28, 1973

attacking connector receives, according to the innovation attacking connector in the fastening area with support surfaces and / or with at least one contact pin running out on one side is provided · For example, when a contact pressure triggered by a screw connection is generated, a form-fit All parts to be connected are supported with one another.

In a preferred embodiment of the innovation can the section of the connecting part that engages in the fastening area be designed as a tab, which is penetrated by the tubular end of the rod, wherein the wave-shaped section can be inserted pluggable from the tubular end · The The tab described in more detail can also be used as a lever, via which actuating forces are introduced into the rod can. Due to the identical design of the straps, they can be used interchangeably at all connection points will.

A secure connection between the parts can be achieved if the pressure pin tapering on one side is from of the rounding and of adjoining legs of the tab is encompassed, both the tubular end and the wave-shaped section in the area between the two legs, the tab a corresponding to the conicity of the pressure pin May have bevel.

The bevel can be used to secure against axial displacement at an acute angle in the extension direction of the wave-shaped section run towards.

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For easy attachment and for easier lifting of the loose The pressure pin can have a bore that receives the screw connection and one that protrudes over the curvature of the bracket Have lobes.

But it can also be of advantage if the drill bit is in the contact pin is threaded.

In another embodiment of the innovation, the pressure pin can have a pin protruding from the tab at its narrow end. This allows a
There is no need for a separate screw connection and it is sufficient to use a self-locking, pre-tensioned locking element or a nut with a supporting washer to tighten the pressure pin

The use of a pressure pin is unnecessary if the
Both legs of the tab are each provided with an approximately tooth-like projection which rests against the correspondingly formed tubular end and the wave-shaped section of the rod.

The subject of the innovation will be based on six in the accompanying drawing illustrated examples are explained in more detail. In the drawing they show

FIGS. 1 and 2 show a first embodiment example in FIG
two planes cut that

3 to 7 further exemplary embodiments, each with
tab-like training of the attacking part and

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Fig. 8 shows an embodiment in which the engaging part of solid material is made.

As can be seen from FIGS. 1 and 2, a rod 3 provided with a wave-shaped section 1 and a tubular end 2 receives in its fastening area k a connecting part 5 which acts at an angle thereto. This is designed in the fastening area 4 as a cut tab 6 which is penetrated by the tubular end 2 of the rod 3. The wave-shaped section 1 is received by the tubular end 2 in an insertable manner. On a one-sided conically tapering pressure pin 7 * which is surrounded by the rounding 8 and the connecting legs 9 and 10 of the tab 6, a pressure can be exerted by tightening a screw connection lib, which leads to a positive support of all parts to be connected to each other . This results in a play-free, but detachable connection because both the tubular end 2 and the wave-shaped section 1 have a bevel 12 in the area between the two legs 9 and 10, which corresponds to the conicity of the pressure pin 7. In a manner not shown, this bevel 12 can taper at an acute angle in the pull-out direction of the wave-shaped section 1 in order to obtain axial securing. If the screw connection 11b is removed from the bore 13 that accommodates it , the contact pin 7 made of plastic, for example, can easily be removed by grasping a tab Ik protruding over the rounding 8 of the tab 6 »

According to FIGS. 1 and 2, the screw connection 11b is formed by a through screw 15 which, with its head l6 on the tab 6 and with its nut 17 - each given-

if with the interposition of washers 18 and / or lock washers 19 - supported on pressure pin 7

For the sake of simplicity, in the description of the following exemplary embodiments, parts of the same type are prepared used position designations used.

In contrast to the exemplary embodiment according to Pig · I and 2 has in the embodiment of Figure 3, the bore 13t can be designed as a blind or through hole, a thread 20 in the pressure pin 7, one of which has a locking washer 19 on the underside of the bracket 6 supporting screw 21 receives.

In the embodiment according to FIGS. 4 and JJ, the pressure pin 7 is provided at its narrowly tapering end 22 with a pin 23 emerging from the tab 6. According to FIG. K, this has a thread and, in addition to a locking washer 19, receives a nut 17, the pressure pin 7 becoming wedged when it is closed. After loosening the nut 17, the connection can be loosened by a light tap on the end face of the threaded pin 23 and then released. As shown in Fig. 5, however, the thread on the pin 23 can be omitted, wc <#in a securing element lla is supported under pretension, for example via a washer l8 on the bracket 6. This securing element 11a can wedge itself with the pin 23 in a self-locking manner . The pin 23 can, however, also have a groove which serves as a support surface for the securing element 11a.

Figures 6 and 7 show an embodiment of the innovation, in which the two legs 9 «10 of the tab 6 each

have an approximately tooth-like projection 24 that corresponds to formed support surfaces 25 of the tubular end 2 and the wave-shaped portion 1 of the rod 3 is applied. Bine taken from the connecting area of the two handles 9110 Screw 26 with a thread start designed as a spite 27 is used to fix the tubular ligament 2

The embodiment according to FIG. 8 basically corresponds to that according to FIGS. 6 and 7, but the engaging part 5 is made of solid material, into which, depending on the material properties, the tooth-like projection 2k can be better or more accurately incorporated.

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Claims (8)

Protection claims 1. Device for play-free and releasable connection of a wave-shaped section with a tubular section a rod, the connecting area of which receives a connecting part acting at an angle thereto, characterized in that, that the attacking connection part (?) in the fastening area (4) with support surfaces (25) and / or with at least one is provided with a conical pressure pin (7) on one side. 2 · A device according to claim 1, characterized in that the (4) engaging in the fastening area portion de * ⁷ is formed connecting part (5) as a tab (6). or the tubular end (2) of the rod (3) is penetrated, and that the wave-shaped section (l) is received by the tubular end (2) in a pluggable manner. 3 «performance according to claims 1 and 2, characterized in that that the one-sided conically tapering pressure pin (7) from the rounding (8) and adjoining it Legs (9 »10) of the tab (6) is included, and that both the tubular end (2) and the wave-shaped section (l) in the area between the two legs (9 * 10) of the tab (6) has a bevel (12) corresponding to the conicity of the pressure pin (7). -8th- 7301074 and β. 73 4. Apparatus according to claim 3 »characterized in that the bevel (12) tapers at an acute angle in the pull-out direction of the wave-shaped section Cl). 5. Device according to one or more of the preceding claims, characterized in that the Anproßetift (7) a hole (13) receiving the screw connection (lib) and a tab protruding beyond the rounding (8) of the bracket (6) (1,4). 6. Device according to one or more of the preceding claims, characterized in that the bore (13) i »pressure pin (7) rr.1% a thread (20) is provided. 7 · Device according to one or more of the preceding Claims, characterized in that the pressure pin (7) at its narrowly tapering end (22) one out of the tab (6) has protruding pin (23). 8. Device according to claims 1 and 2, characterized in that that the two legs (9,10) of the tab (6) each provided with an approximately tooth-like projection (24) are, the at the correspondingly formed tubular end (2) and the wave-shaped portion (1) of Rod (3) is applied.