RU22135U1 - ELASTIC BEARING CASE OF PNEUMATIC JACK - Google Patents

Abstract

1. An elastic bearing shell of a pneumatic jack having a barrel-shaped shape, characterized in that it is made of tubeless automobile tire. 2. The shell according to claim 1, characterized in that it is made of a tire that has been used as intended.

Description

An elastic bearing shell of a pneumatic jack and a method of manufacturing such a jack

The invention relates to lifting pneumatic mechanisms and can be used for lifting goods, such as cars. The invention can also be used for the manufacture of jacks.

As the supporting shells of pneumatic jacks, various elastic airtight materials are used. The most common rubber fabric materials. Thus, according to a known method for manufacturing an elastic jack, a sealed shell is formed of rubber 1, and according to another method of rubberized fabric 2. However, existing technologies for the manufacture of shells are relatively expensive.

The shape and design of the shells of pneumatic jacks is different. For example, the design of one pneumatic jack provides a toroidal shell of airtight tadn, and the shell is additionally supported by radially spaced more durable flexible rings 3.

The barrel-shaped form of the shells is most widely used, and such a shell often makes up almost the entire construction of a pneumatic jack (in addition to air supply equipment). In one of these structures, the shell is cylindrical, and the cylinder diameter is several times greater than height 4. In another design, the shell is barrel-shaped multi-stage and pulled together by strong rings 5. The round bases, which are part of the shell, serve as the supporting and thrust surfaces of the aforementioned jacks. Another series of constructions provides for rigid rigid base-disks and barrel-shaped elastic side shells tightened by strong rings - the design of one such jack provides for an additional telescopic lift-damper 6, the other - a damper in the form of a main shell, only smaller in size 7.

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IPC B 66 F 3/24

the design, mainly related to the sealing of joints; secondly, expensive technology for the manufacture of pressurized shells; thirdly, small industrial lots producing pneumatic jacks.

The aim of the invention is to reduce the cost of pneumatic jacks with an elastic bearing shell and simplifying the manufacturing technology of such jacks.

This goal is achieved through the use of a car tire as an elastic bearing shell of a pneumatic jack. Better when a tubeless tire is used (e.g. 8). It is possible to use a tire that has been used for its main purpose.

This goal is also achieved due to the method of manufacturing a pneumatic jack from an automobile tubeless wheel. According to the method, the wheel disk is cut in a diametrical plane, and the holes in the disk are hermetically sealed. It is also possible to use wheels that have been used for their primary purpose.

The high strength and elasticity of the car tire meets and even surpasses the performance requirements of jackets for pneumatic jacks. The low digffusivity of the tire material and the reinforced design of the tubeless tire beads allows relatively easy sealing of the joints between the sides and the jack bases and virtually eliminates the leakage of compressed air, especially when halves of a cut wheel disk are used as bases. The massive program of tire production by factories determines their relatively low cost, and, consequently, the low cost of the casing, especially when used tires are used.

The invention is illustrated by drawings, where in Fig 1 shows a cross section of a pneumatic automobile jack, and fit. 2 illustrates a method of using a jack.

The jack (see FIG. L) consists of a frameless car tire i mounted on the sides of two disks 2 and 3, which are made by cutting into two halves of the disk of the car wheel. The outer parts of the discs 2 and 3 are closed externally by flat discs 4 and 5, for example by welding. Disc 3 has a fitting

6 (included in the design of the finished automobile disk) connected to the cavity In the jack. An emphasis 7 is fixed in the center of the vise 5 in the shape of a thrust surface of the vehicle threshold. A restriction chain 8 is fixed between the disks 4 and 5. Instead of the disk blocks 2. 4 and 3, 5 it is possible to use specially made disks.

Before replacing the wheel, the jack is placed in the required place under the bottom of the car A, and the emphasis 7 is combined with the thrust surface of the threshold (see figure 2). Compressed low-pressure air through the nozzle 6 enters the cavity of the jack B, due to which the elastic cone is straightened, lifting discs 3 and 5 with a stop 7. Part of the car is lifted. Chain 8 does not allow lifting above a set level. After repair work, the air from cavity B is vented through the nozzle 6 into the atmosphere and the jack takes its initial position

Sources of information:

1. RF patent No. 2109635, 1998.

2. USSR patent No. 502601, 1971,

3.A.S. USSR No. 1224253, 1986.

4. U.S. Patent No. 3565398, 1971.

5. US patent No. 4560145, 1985.

6. US patent No. 4605203, 1986.

7. U.S. Patent No. 4,295,635, 1981.

8. RF patent No. 2124534, 1999.

Claim

1. The use of a car tire as an elastic bearing shell of a pneumatic jack.

2. A method of manufacturing a pneumatic jack from an automobile tubeless wheel, in which the wheel disk is cut in a diametrical plane, and the holes in the disk are hermetically sealed.

3. The method according to claim 2, characterized in that the wheel is used, which has been operated for its main purpose.

An elastic bearing shell of a pneumatic jack and a method of manufacturing such a jack

Claims (2)

1. An elastic bearing shell of a pneumatic jack having a barrel-shaped shape, characterized in that it is made of tubeless automobile tire. 2. The shell according to claim 1, characterized in that it is made of a tire that has been used for its main purpose.