CS231296B1 - A device to release the tire from the wheel disc - Google Patents

Abstract

The purpose of the invention is to eliminate the tedious, laborious and often dangerous work of removing tires from the wheel rim, especially large tires of heavy vehicles, performing repairs directly in the field where the defect occurred, without handling heavy wheels, transporting them to the workshop and back for reassembly. The essence of the invention lies in a forked frame, height-adjustable along the vertical frame, The forked frame, which is rotatable, has on one side a fixed wedge that is placed on the tire bead, or, on the disk ”and on the other side the forked frame has a sliding wedge, mounted on a hydraulic cylinder. The sliding wedge is placed on the tire bead and releases the tire from the wheel disk.

Description

from the wheel disc

The purpose of the invention is to eliminate the tedious, laborious and often dangerous work of removing tires from the wheel rims, especially large tires of heavy vehicles, performing repairs directly in the terrain where the defect occurred, without handling the heavy wheels, transporting them to the workshop and back for refitting .

The essence of the invention consists in a forked frame, height-adjustable on a vertical frame,

The forked frame, which is rotatable, has a fixed wedge on one side, which is placed on the tire bead or on the disc, and on the other side, the forked frame has a sliding wedge mounted on the hydraulic cylinder. ‘The sliding wedge is placed on the tire bead and releases the tire from the wheel disc.

JL

8-

231 296

- 1,231,296

The subject of the invention is a device for releasing a tire from a tire

Claims (2)

digku kolja it even without disassembling the wheel from the machine, tractor, alley and so on. · When replacing the tire or repairing or replacing the bladder, the main procedure is to remove the tire and the disc from the vehicle. Before repairing or replacing, the biggest problem is, especially in heavier vehicles, the tearing of the tire from the wheel disc. Normally, hand tools such as wedges, mallets, etc. are used. This operation is laborious, time consuming and associated with the risk of injury to the worker. If existing pullers are used, they require the wheel to be removed from the vehicle. They are designed for. lighter vehicles and therefore do not meet the requirements of agricultural operation. These disadvantages are overcome by the tire release device of the wheel disc according to the invention, which consists of a vertical frame on which the forked frame is adjustable. At the end of one arm of the forked frame a fixed wedge is attached, while at the end of the other arm of the forked frame an adjustable body is mounted in which a hydraulic cylinder with a sliding wedge is mounted. The forked frame is adjustable to the vertical frame by a vertical adjustment frame in which it is mounted with its pivot pin. The device according to the invention brings a number of advantages, the most important of which is the elimination of labor and substantial reduction of the time to change or repair the wheel casing. It is not necessary to remove the wheel from the vehicle to perform this operation. Compared to loosening the sheath with mechanical tools, it significantly increases safety at work. In contrast to the release of the sheath by hand tools, the sheath of the shock is not damaged, since it is a disassembly under pressure. Swiveling the forked frame allows the machine to be used on both sides of the vehicle. The load is connected to the tractor's hydraulic circuit, whereby the hydraulic cylinder can be replaced by an air cylinder or a manual hydraulic pump can be used. The device is mobile and can be used in the field, which is especially large for agricultural operations - z231 296 meaning. The equipment can be made even in smaller premises, because its production does not require special machines. « An exemplary embodiment of a tire release device of a disc according to the invention is schematically shown in the accompanying drawings, in which Fig. 1 is an axonetric view of the device and Fig. 2 is a top view of the device. The device consists of a vertical frame 1, in the sides of which there are formed vertical adjustment openings 4, in which a vertical adjustment frame 2 is mounted by means of locking pins 15 st _{and is} fixedly mounted in which the pivoting pin 6 of the forked frame 2 is mounted. Ka forked end of one arm ³ and the frame 2 attached solid wedge 6, while the end of the second arm is forked frame 2 by means of pins 16 and holes the second transverse occurred Clamped adjustable sliding wedge element 8, which accommodates a hydraulic cylinder 10 to whose unmarked piston rod is sliding wedge χ. The vertical frame 1 is provided with handles 11 and armrests 12. The vertical frame 1 rests on axles 13 with self-adjusting wheels 14. The device according to the invention is intended primarily to release large tires from the discs of heavier mechanization means without removing the wheel from the machine. The device is approached to zdviženému wheel T _and to the bifurcated frame 2 surrounds pneumetiku wherein the solid wedge 6 and the sliding wedge 2 are located close to the disk bifurcated by the frame 2 ^is vertically adjusted so that the solid wedge 6 and the movable wedge 7 was approximately the the horizontal axis of the wheel. Depending on the width of the tire, the transversely adjustable sliding wedge body 8 differs 2 to contact the tire with the wheel disc and this position is fixed by the pins 16. In some cases it is advantageous to support the fixed wedge 6 against the rim of the disc and to move the sliding wedge 2 towards the tire contact with the wheel. After this adjustment, the hydraulic cylinder 10 is actuated, which pushes the piston rod 2 of the sliding wedge 2 into the tire plate with the wheel disc and detaches the tire from the disc. By turning the wheel and the slider *