SU1664602A1 - Stand for mounting/dismantling of vehicle tyre - Google Patents

Abstract

The invention relates to equipment for mounting and dismounting pneumatic tires. The purpose of the invention is to increase the convenience of operation. The device comprises a frame 1 with a squeezing mechanism and a wheel turning mechanism, the first of which is mounted with the possibility of radial movement and has squeezing rollers 5 fixed to the rotary rods 6 and 7. 11 or 12 connected to the corresponding shoulder of the T-shaped two-arm lever 13 connected to the spin handle 17. The earrings are interconnected by means of an axis 10 fixed relative to the body. 1 Cf. 1 il.

Description

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The invention relates to equipment for servicing vehicles, in particular, to stands for mounting and dismounting pneumatic tires,

The goal of prevention is to increase the ease of use.

The drawing shows schematically a stand, a general view.

The stand contains a frame 1 with a 2 mechanism pressed on it. The release mechanism 2 includes a housing 3 mounted in the guide beds and connected with the screw 4, as well as working shoes 5 made in the form of squeezing rollers and mounted rotatably on the rods 6 and 7. The rods 6 and 7 are rigidly fixed under right angle to the corresponding earrings 8 and 9. Earrings 8 and 9 with one ends are pivotally connected to each other on a fixedly fixed relative to the body 3 axis 10, and the other ends are pivotally connected to the corresponding pins 11 and 12. the ends are pivotally connected to the with The corresponding shoulders of the V-shaped two-armed levers 13. End of the rod

12 pivotally connected to the lever arm

13, is provided with an open groove 14, in which the axle 15 is placed. The double-arm lever 13 is hinged on the axle 16 fixed to the body 3 and rigidly connected to the handle 17. The ha 11 has an adjustable stop 18 on the base 1, the wheel turning mechanism is also mounted, including a mounting element 19 and a kinematically associated drive 20. The bench is provided with a fixedly mounted clamp 21. A disassembly scrap 22 may be included in the kit.

The stand works as follows.

The wheel to be subjected to the operation is clamped to the adjusting element 19 with the help of a clamp 21. The operating shoes 5 of the pressing mechanism 2 are hereby located E; the initial position shown in Fig. 1 by a dashed line, and the handle 17 is in a vertical position. After installation of the wheel, the handle 17 is moved to a horizontal position, as a result of which the double-arm lever 13 rotates around axis 16 and interacts with articulated rods 11 and 12 and straps 8 and 9, Earrings 8 and 9 rotate around axis 10, rods 6 and 7 with the shoes 5, they occupy a working position, while in the open PGU 14 of the earrings 12 an axis 15 is placed, the separation of the shoes 5 is pre-adjusted by the stop 18, and the shoes 5 are external

the surfaces enter between the wheel rim and the tire. Then turn on the drive 20 and smoothly turn the wheel on ZbOo. The release of the tire rim is performed simultaneously by the upper and lower shoes 5 in one revolution of the product. Thereafter, drive 20 is turned off. Complete disassembly of the tire is performed by the scrap 22. One end of the scrap 22 is placed in the slots

between the tire and the rim, and the other end abuts against the housing 3. The drive 20 is turned on and in one full revolution the tire is completely dismantled. Wheel spinning is impeded by friction.

The tire is mounted using only the upper shoe 5. Before the start of the rolling, the open groove 14 of the pulley 12 is manually pulled out of contact with the axle 15 and the lever 13 and the lower shoe 5 is pulled out of the contact zone with the tire. This position is shown in FIG. 1 by a dash-dotted line. The mechanism 2 is squeezed out using the screw 4 is installed in the position intended for dismantling and mounting specific wheels depending on their sizes.

Claims (2)

1. A stand for dismounting and mounting a pneumatic tire of a vehicle wheel, comprising a frame on which a wheel turning mechanism is mounted, including an adjusting element and a clamp, and a spin mechanism including a body and associated with it by means of a hinge-lever system in the vertical plane, the rods with the squeezing rollers fixed on the ends facing the turning mechanism of the wheel, characterized in that, in order to increase the convenience of operation, the rods are rigidly fixed on the perpendicular pH their earrings, one ends of which are hinged on a common horizontal, oriented perpendicular to the rods and fixed on the body of the axis, and others hinged to one of the ends of the r, the second ends of each of which are hinged to the ends of the V-shaped lever , the top of which is fixed to the shaft of the manual drive of the manual drive, horizontally displaced from the said axis in the direction opposite to the wheel turning mechanism. 2. A stand according to claim 1, characterized in that the casing of the pressing mechanism is fixed on the frame with the possibility of reciprocating movement horizontally in the direction of the wheel turning mechanism.