FR2489757A1 - COUPLING DEVICE FOR VEHICLES - Google Patents

Abstract

COUPLING DEVICE FOR CARS CONSTITUTED BY A SUPPORT PART ATTACHED TO THE VEHICLE AND PROJECTING REAR FROM IT, AND BY A HITCH BALL COLLAR, WHICH CAN BE REMOVABLE ASSEMBLY WITH THE PART OF SUPPORT. IN THIS DEVICE, THE SUPPORT PART IS CONSTITUTED BY A CYLINDRICAL RECEIVER PART 1, ON WHICH THE BALL NECK 3 HAVING A CORRESPONDING BORE 2 CAN BE THREADED AND USED AS A FIXING MEANS A CONICAL PIN 5 WHICH IS PROVIDED TRANSVERSALLY TO THE BALL NECK AND TO THE RECEIVING PART, AND CAN BE SCREWED AT ITS FRONT END ON THE BALL NECK. THIS COUPLING DEVICE CAN BE USED ESPECIALLY FOR PRIVATE CARS.

Description

The present invention relates to a device

  for vehicles, particularly for passenger cars

  particular, consisting of a support piece attached to the vehicle and protruding rearward from it, and a hitching spigot, which may be

  removably assembled with the support piece.

  The object of the invention is to arrange a

  A coupling device of this type in such a way that, on the one hand, it requires as little expense as possible in parts or surfaces requiring precise machining and that, on the other hand, a connection can be established and eliminated. by hand, who is able to bear

  all charges that may occur.

  For this purpose, according to the invention, the part 1-5 support is constituted by a cylindrical receiving part,

  on which the spherical neck, with a corresponding bore,

  can be threaded, and in that one uses, as attachment means, a conical pin, which is arranged transversely to the ball joint and to the receiving part,

  and is screwable at its front end on the spherical neck.

  With the taper pin, the spherical collar threaded onto the cylindrical receiving member is assembled without play, since the receiving member and the spherical neck are tightly clamped against each other at the end of the screw. the conical pin. Only the taper pin and the corresponding bore of the receiving part require

  fine machining. The peripheral surface of the receiving room

  and the bore of the spherical neck may have a relatively coarse fit between them because it is sufficient

  according to another characteristic of the invention, the

  before the bore of the spherical neck is arranged for a short length so as to form an adjusting surface, and that the receiving part is arranged with

corresponding way.

  For screwing the taper pin on the ball joint, a welded nut can be placed on it. The taper pin may be provided with an actuating handle, for example a star grip. In addition, to ensure the immobilization of the screwed conical pin, there can be provided an axis pin connected to the spherical neck by means of a chain. To ensure retention of the non-screwed conical pin, provision can be made for

  retaining ring tied by a chain to the spherical collar.

  When the spherical neck is removed, all fasteners and security remain connected to the spherical neck. The invention will be better understood when reading

  of the following detailed description and examination of the

  attached drawing which represents, as an example not

limiting, a form of execution.

  In this drawing: FIG. 1 shows a receiving part on which a hinged spherical neck is laid, and FIG. 2 is a sectional view of the device.

  of Figure 1 along the line II-II.

  At the rear of a vehicle protrudes, as

  shown in FIG. 1, a cylindrical receiving part

  1, on which is threaded a neck 3 hitch 4 having a bore 2 corresponding. The front end of the bore has a slightly enlarged diameter, and

  this part of the bore is based on a corresponding part

  of the receiving part, over a short length, to ensure the fit. A connection between the receiving room

  1 and the spherical neck 3 is ensured, as is apparent from

  FIG. 2 is a conical pin 5 disposed in a transverse bore 6 of the ball-and-socket collar, and

  in a conical bore 7 of the receiving part 1. The former

  front end of the taper pin 5 is provided with a

3 2489757

  threaded and is screwed p2r thereof into a welded nut 8 disposed on the spherical neck 3. At the other end of the conical pin 5 is fixed an actuating handle 9, by means of which the pin can be rotated conical when establishing the connection between the receiving part and the spherical neck. The taper pin 5 is held by an axis pin 10, which is threaded

in a bore 11.

  The pin pin 10 is retained by means of a sheaf 12 by a ring 13 attached to the ball joint. To this ring 13 is further attached, by means of a chain

  14, a ring 15 holding the conical pin 5.

  When the connection is established between the room

  1 and the spherical neck 3, all the parts

  the position shown in the drawing. To remove this connection, remove the pin pin 10 and one

  unscrews, by means of the actuating handle 9, the gou-

  tapered piston 5 by its thread out of the welded nut 8.

  Then, the taper pin 5 is withdrawn from the bore 7, then the ball-and-socket collar 3 is removed from the receiving member 1. The pin pin '0 and the taper pin 5 remain

linked to the spherical neck 3.

4 2-489757

  1. Coupling device for vehicles, in particular for passenger cars, consisting of a support part fixed to the vehicle and projecting rearwardly therefrom, and by a hitching spigot. , which can be removably assembled

  with the support piece, said device being characterized

  characterized in that the support part is constituted by a cylindrical receiving part (1), on which the ball-and-socket joint (3) having a corresponding bore (2) can be threaded and in that the fastening means is used , a taper pin (5) which is arranged transversely to the ball-and-socket and to the receiving member, and is screwable

  at its front end on the spherical collar.

  2. Device according to claim 1, characterized

  characterized in that the forward end of the bore (2) of the ball-and-socket joint (3) is arranged for a short length so as to form an adjusting surface, and in that the

  receiving part (1) is arranged correspondingly.

  3. Device according to one of the claims

  1 and 2, characterized in that, to enable the taper pin (5) to be screwed onto the ball joint, a nut

  welded (8) is arranged on the latter.

  4. Device according to one of the claims

  1 to 3, characterized in that the conical pin (5) is provided with an actuating handle (9), for example a

star grip.

  5. Device according to one of the claims

  1 to 4, characterized in that, to ensure the immobilization of the screwed conical pin, there is provided a pin 3C axis (1e) which, by means of a chain (12) is bonded to the neck

with ball.

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  6. Device according to one of the claims

  1 to 5, characterized in that, in order to maintain the non-screwed conical pin, there is provided a retaining ring (15), which is connected by a chain (14) to the ball-and-socket collar.