DE1728698U - AUTOMATIC LOCKING FOR TRAILER COUPLINGS WITH COUPLING CLAW. - Google Patents

Description

B433685MIO.,

Offenburg, June 13, 1956

a Η. Ik α

Automatic securing device for trailer couplings with a coupling claw

The invention relates to a trailer coupling for connecting vehicles. * Claw couplings in which the counter claw is secured by a corresponding holding pawl over a leather in the coupled state are known. It is also known to obtain these holding latch in its locked position once more form-fitting than \ a cotter pin inserted or limb bolt in the backup ', standing * These couplings, however, have all Kachtei- i Ie. Couplings in which this holding member is only retained in the coupling position by the spring and the counterpressure can tend to cause the holding pawl to jump out of its holding position and then to open the coupling as a result of blows or other vibrations. Couplings in which this Eäl.te -. ^. member is also secured positively by a split pin to be inserted ■ have the disadvantage

a) that diese.j Sieherung is easy depending on the person making c \ s coupling process, so it ^ e int re th can that the insertion of the securing element is forgotten and therefore there is no backup,

b) that the resilient split pin or link pin pop out or shear off as a result of the soft material.

The present invention overcomes all of these disadvantages by that on the coupling claw 1) an automatically working fuse 2) is attached, which counter claw 1) and holding member 3) automatically locked in the coupling position so that a double Fuse is present because the fuse 2) the retaining link 3) also locked in such a way that it is in the same holding position at the point marked 4) cannot leave.

Claims (1)

page 2 PA33685Vtt5. ^c 6 The safety device 2) works automatically when the counter claw 1) is brought into the coupling position, since the bolt 5) over the i'eder 6) automatically snaps into the hole in the holding member 3) in this position. This guarantees that in each Always peel one without any additional work on the part of the operator the coupled state has been secured twice. The Sioherun pin 5) can in its dimension IS or material choice so ' be held so that it cannot shear off. Protection claims Shutga n claim 1) Trailer coupling with counter claw for connecting! Vehicles characterized in that the counter claw 1) and holding member 3) automatically secured via a safety device ^ during the coupling process and thus a double safety device is available in every coupling case » Protective cloth 2) Trailer coupling according to protection claim 1) characterized in that that the Sieherungseinrichtung 2) from a stored in a housing spring-loaded locking pin 5) with handle. Protection claim 5) Trailer coupling according to protection claims l) and 2), characterized in that the bearing housing for the locking pin 5) is designed to be adjustable at the contact point of the compression spring 6), unyailf the locking pin 5) set the acting pressure to Ts.orm.en,