| CPC F16B 7/06 (2013.01) [F16C 7/06 (2013.01)] | 18 Claims |
|
17. Push/pull rod (10), comprising:
at least one first fastening device (12) with a coupling element (12a) and a shank (12b) which is arranged on it, at least one first connection piece (18), wherein the first fastening device (12) is connected to the first connection piece (18) such that it can be rotated via a threaded arrangement (30) in order to change the length of the push/pull rod (10), a holding device with first and second holding elements which, as viewed in the axial direction, in each case face one another, interact and are pressed against one another by means of a spring element (28), wherein the first holding element of the holding device is connected fixedly to the first connection piece (18) for conjoint rotation, and the second holding element is arranged fixedly on the first fastening device (12) for conjoint rotation, wherein the spring element (28) is active between a region on the first connection piece (18) and a region on the second holding element, and the holding elements in the process releasably lock the rotational movement of the first fastening device (12) relative to the first connection piece (18) in a plurality of rotational positions by way of a predefined locking force, wherein the first connection piece (18) comprises a main body (34) and a sleeve (36) which reaches at least in regions around the two holding elements and the spring element (28), to which the sleeve (36) and the main body (34) are connected, wherein the sleeve (36) has an internal diameter which ensures a relative movement of the holding elements with respect to one another and of the spring element (28), wherein the sleeve (36) is fixed at least in the axial direction with respect to the main body (34), and wherein the first connection piece (18) holds the holding device with the spring element (28) in the two axial directions, the holding device is configured as a latching device (22) with a first latching element (24) and a second latching element (26), wherein the second latching element (26) has a plurality of latching lugs (26a) which engage into latching grooves (24b) of the first latching element (24), and the first latching element (24) likewise has a plurality of latching lugs (24a) which engage into latching grooves (26b) of the second latching element (26), characterized in that, in the case of the second latching element (26), at least one latching lug (40) is arranged fixedly on and integrally formed with a spring element (28);
the spring element (28) has a central opening which serves to receive the shank (12b) of fastening device (12);
the first latching element (24) and the second latching element (26) are in the form of a latching disc each having a central opening which serves to receive the shank (12b) of fastening device (12) or the shank (14b) of fastening device (14);
a radial anti-rotation lock is effected by the spring element (28) applying a spring force on the first latching element (24) and the second latching element (28); and
the second latching element (26) is adjustable in the axial direction against the spring force of the spring element (28), whereby the second latching element (26) can perform a rotational movement of the first fastening device (12) relative to the first connection piece (18) when a torque is applied relative to the first latching element (24), and can releasably lock the first fastening device (12) in a plurality of rotational positions and is repeated as long as an appropriate torque is applied between the connecting rod (16) and the first fastening element (12) until the desired final adjustment of the push/pull rod (10) has been reached.
|