RU70489U1 - VEHICLE BODY VAN - Google Patents

Abstract

The device relates to transport engineering, namely to the design of the van, installed, as a rule, on the chassis of a truck and having a board, longitudinally divided into lower and upper wings. A vehicle van body comprising a folding board longitudinally divided into lower and upper wings is proposed, the lower side flap is connected by connecting rods with side van struts with the formation of a crank-sliding mechanism, the upper side flap is also connected by connecting rods with side rods of the van with the formation of a crank-slide mechanism, the slider of both crank-slide mechanisms is made common, the ends of the box body are equipped with support rollers, and the connecting rods of the upper side flap are connected enes lever-rocker with the side uprights of the van. A distinctive feature of the van is that the connecting rods connecting the lower side flap with the side van posts are stepped, the upper wing is equipped with support rollers installed in the upper corners of the wing, and through them kinematically connected with guide trays fixed at the ends of the van body, this upper sash is equipped with safety flexible connections connecting it to the frame. 3 ill.

Description

The inventive utility model relates to transport engineering, namely, to the design of the van, installed, as a rule, on the chassis of a truck and having a board, longitudinally divided into lower and upper wings.

Known for the design of a van body with drop-down walls using a cable system driven by a manual winch / Yakobashvili A.M. and other Specialized rolling stock for road freight transport, M., Transport, 1979, p.241, Fig. 115 /. This design provides the convenience of loading and unloading, but differs in a complex and inconvenient drive mechanism.

Also known is the design of the van of the company "Moeyerons" (Germany), the lower and upper parts of the side sides of which are opened up and down, respectively, using a lever-rack-and-pinion gear drive mechanism. The mechanism provides the necessary kinematics of the movement of the sides, the relative balance of the “bead-mechanism" system at different positions of the sides and their control by the effort of the hands. However, such a mechanism is quite difficult to manufacture due to the large number of parts that are different in manufacturing technology.

The closest technical solution is the design of the vehicle body of the van containing a folding board, longitudinally divided into lower and upper parts, the first of which is pivotally mounted on the base of the van and leans down 180 °, and the second is made sliding relative to the guide supports of the van and connected with the first by means of the articulated lever mechanism with the possibility of rotation upward by 90 ° with simultaneous movement

under the roof of the van. At the same time, the lower part of the side is connected by connecting rods to the side racks of the van with the formation of a crank-slide mechanism. The upper side of the bead is also connected by connecting rods to the side racks of the van with the formation of a crank-slide mechanism, while the slider of both crank-slide mechanisms is made common, and the connecting rods of the upper side of the bead are connected by a rocker arm to the side racks of the van. The ends of the van body are equipped with support rollers, and the connecting rods of the upper side flap are connected by a rocker arm to the side racks of the van / RU 14906, B62D 33/04, 2000 /. This design is selected as a prototype.

The prototype has the following disadvantages. Firstly, lack of reliability due to the possibility of both spontaneous opening and clipping of the upper side flap. In addition, the prototype mechanism periodically falls into the position of the upper and lower "dead points", which requires additional physical effort from the maintenance staff.

The inventive utility model solves the problem of creating a van body of a vehicle devoid of these disadvantages.

To solve this problem, a vehicle van body is proposed, comprising a frame with side racks, a folding board, longitudinally divided into lower and upper wings, the lower side wing is connected by connecting rods to the side van posts with the formation of a crank-slide mechanism. The upper side flap is also connected by connecting rods to the side racks of the van with the formation of a crank-slide mechanism. The slider of both crank-slide mechanisms is made common. The ends of the van body are equipped with support rollers, and the connecting rods of the upper side flap are connected by a rocker arm to the side racks of the van.

A distinctive feature of the proposed device is that the connecting rods connecting the lower side flap with the side van posts are stepped, the upper leaf is equipped with support rollers installed in the upper corners of the leaf, and through them kinematically connected with guide trays mounted on the ends of the van body , while the upper sash is equipped with safety flexible connections connecting it to the frame.

The implementation of the body of the van with the indicated features eliminates the possibility of spontaneous opening of the side and breakage of the upper sash. Thus, a technical result is achieved.

The accompanying drawings show the claimed device, in Fig. 1 - in the closed position, in Fig. 2 - in a half-open position, in Fig. 3 - in the open position, where 1 is the lower side flap, 2 - the upper side flap, 3, 4 - connecting rods, 5 - side strut, 6 - slider, 7 - support roller, 8 - rocker arm, 9 - support roller, 10 - guide tray, 11 - safety flexible link, 12, 13, 14, 15, 16, 17 - hinges, 18 - van cover, 19 - van base. The frame of the van includes side racks 5, a cover 18 and a base 19.

The device operates as follows. In the initial (closed) position (Fig. 1), the lower flap 1, the upper flap 2 and the levers 3, 4, 8 are stacked in the side posts 5. The lower arm 3 is made stepwise, which ensures compact folding of the mechanism. The lower flap of the bead 1 is the leading link - the crank, which is secured through the hinge 12 to the base of the van 19 and is connected to the crank arm 3 with the crank arm 3, which transfers rotational movement to the rocker arm 8, which drives the upper flap 2 connected to it via hinge 17. The upper wing 2 along the path slides under the lid of the van 18 and rotates through an angle of up to 87 °. The axis of rotation of the rocker arm is fixed in a hinge 14 located on the connecting rod arm 4, which in turn is connected via a hinge 16 to

side strut 5. The connecting rod arm 3 and the rocker arm 8 have a common movable hinge 15 located in the slider 6. The upper sash, when moving upward, first rolls in and then moves along the support rollers 7. At some point, the support rollers 9, fixed on the upper casement, and the support rollers 7 are released. In order to avoid jamming of the mechanism in extreme positions (open and closed), the connecting rod arms do not reach the “dead spots”. When moving the mechanism to the open position, the lower sash turns down to an angle of up to 181 °.

Claims (1)

A vehicle body containing a folding board, longitudinally divided into lower and upper wings, the lower side flap is connected by connecting rods to the side racks of the van with the formation of a crank-slide mechanism, the upper side flap is also connected by the connecting rods with side rods of the van with the formation of crank-slide mechanism, the slider of both crank-slide mechanisms is made common, the ends of the box body are equipped with support rollers, and the connecting rods of the upper side flap are connected m-yoke with van side racks, characterized in that the connecting rods connecting the lower side flap to the van side racks are stepped, the upper sash is equipped with support rollers installed in the upper corners of the sash and kinematically connected with guide trays fixed to them the ends of the body of the van, while the upper sash is equipped with safety flexible connections connecting it to the frame.