DE7429608U - Fifth wheel coupling - Google Patents

Description

GEORG FISCKER AKTIENGESELLSCHAFT, 8201 Schaffhausen

Fifth wheel

The invention relates to a fifth wheel for trailer vehicles, especially for vehicles with a smaller (up to approx. 4t) payload, which on the underside of a coupling plate is symmetrical to both of the longitudinal axis of an insertion slot for a king pin, one bearing each to hold one held in its position by a bolt Has bearing block and the pivot and bearing points for locking the king pin.

Fifth wheel couplings of various types are known which are designed for higher dirty loads (from approx. 5t to approx. 50t) and accordingly with relatively heavy actuating and locking elements as well as with heavy eaten or welded large coupling plates are provided so that these fifth wheels are oversized for vehicles with smaller payloads.

74296Q8 7/15/76

The object of the invention is a fifth wheel of the type mentioned at the beginning for trailer vehicles with a smaller payload to create which while maintaining functional reliability with lighter actuating and locking elements, simpler bearings for receiving and fastening the two bearing blocks and a correspondingly smaller and lighter clutch plate is provided and which nevertheless has sufficient guidance of the king pin entering the insertion slot. The object is achieved by the invention specified in the claim.

An embodiment of the invention is shown in the drawing. Show it:

Fig. 1 is a view of the fifth wheel seen from below in the locked position (coupled)

FIG. 2 shows a section along the line II-II in FIG. 1

3 shows a side view of the fifth wheel according to the direction of the arrow "A" in FIG. 1

Fig. 1 shows a view of a fifth wheel seen from below. A ratio consisting of a flat sheet metal plate the length a to the width b of approximately 1: 2 having coupling plate 1 is provided with an insertion slot 2, in which a king pin, not shown, is inserted, with the outer contour of the coupling plate 1 for Stiffening webs 4, 6 and 7 are arranged around the circumference. On both sides of the slot 2 are on the webs 4 and 6 each a bracket 5 or 5 attached, which as an extension of the Slot 2 and thus serve to better guide the retracting kingpin.

7429608 07/15/76

Laterally next to the slot 2, a pivot point 8 is provided with a bolt 9 fastened in the carrier 27, on which a coupling claw 10 is mounted pivotably horizontally. Opposite the fulcrum 8 is another fulcrum 11 with a bolt 12 also fastened in the carrier 27 is arranged, on which a locking pawl 13 can be pivoted horizontally is stored. The pawl 13 is spring loaded with a l6 standing, attached to one of the pawl 13 tension bolt 14 articulated actuating rod 15 is operatively connected.

The claw 10 and the pawl 13 are not shown in detail and also unspecified support control surfaces provided, whereby the pawl and the pawl in the corresponding positions in a known manner either mutually pivot or support.

At this point it should be mentioned that the actuating and locking elements and bearing blocks are shown in phantom in the drawings for clarity.

Symmetrically on both sides of the longitudinal axis of the slot 2 are two spaced apart by webs 25, 25 'and 26, 26' and through the carrier 27 with one another connected bearings 17, 17 'and 18, 18' are provided, on each of which the pivotable about bolts 19, 19 'by means of clamps 21, 21 'and 22, 22' in their position held bearing blocks 20, 20 'are attached (Fig. 2).

The bolts 19, 19 * are notched in the area of the bearings 17, 17 'and 18, 18' (FIG. 2) and lie with the notched surfaces on the respective bearing. Each individual bolt between the bearings has the full diameter and is locked with axial play between the bearings.

7429608 07/15/76

Claims (7)

.. 4 P-a— - -fa- ate η s ρ r U c h e 1. Fifth wheel coupling for trailer vehicles, especially for Vehicles with a smaller (up to approx. 4t) payload, which at the underside of a coupling plate symmetrical to both Sides of the longitudinal axis of an insertion slot for a king pin .je one bearing for receiving one by a bolt held in its position bearing block and the pivot and bearing points for a lock of the king pin, characterized in that the coupling plate (l), which consists of a flat sheet metal plate, has a ratio of length (a) to width (b) of approximately 1: 2, with an extension of the insertion slot in the coupling plate (1) (2) two guide brackets (3, 5) are arranged on the coupling plate (1). 2. Saddle coupling according to claim 1, characterized in that the coupling plate (l) is thick from a maximum of 5 nim flat sheet metal plate. 3. Saddle coupling according to claim 1, characterized in that the sides of the bracket (3, 5) facing the slot (2) in extension with the slope of the slot (2)? form a straight line (Fig. 1). 4. Saddle coupling according to claim 1, characterized in that the spaced apart bearings [YJ, 17 'and 18, 18') have a bearing surface (23, 23 'and 24, 24') for receiving the bolts (19, 19 ') ) exhibit. 7429608 07/15/76 5. Saddle coupling according to claim 4 , characterized in that the bolts (19, 19 ') link out at both ends and are provided with a straight surface (Fig. 2). 6. Fifth wheel coupling according to claim 4 and 5 , ö by, / -! Cenn '^ eiohne t that the bearings (17 > 17' and 18, 18 ') :: ur receptacle emv notched at both ends and provided with a straight fiiicVie bolts (19i 19 ') aboveTall ^ a gerM.de Aui'i ^ oflache (2j>, 2V and 24, 24') have (FIr .. ?.). 7. Saddle coupling according to claims 4, 5 and 6, characterized in that the bolts (19, 19 ¹ ) in the area between the bearings (17j 17 'and 18, 18') have the full diameter for the purpose of axial guidance and radially through the clamping bracket (21, 21 ^! And 22, 22 ') are held. GEORG FISCHKR AKTIENGESELLSCHAFT Oi ¹ 07/15/76