RU2334634C2 - Automotive jack - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: jack comprises an air-proof chamber mounted into the telescope rest, guides opening and retuning the chamber and rest sections into a preset or initial position, a restrictor to limit the rest sections motion in whatever direction, a nipple for connection to compressed air supply and for release of air, a ridged plate for the car to rest upon. The jack can be connected to the compressor and can be made integral with it, in either split or permanent joint version. The said compressor can be connected to the car dash panel lighter.

EFFECT: ease of use, manufacture, repair and servicing of the car.

5 cl, 3 dwg

Description

The invention relates to tools and equipment for the repair and maintenance of cars and other mobile equipment in road, field and stationary conditions.

It is known that in the repair and maintenance of automobiles hand-held portable screw jacks with a loading capacity of 800-1000 kG and a lifting height of the upper part up to 380 mm from the ground are used. To lift the car, muscle energy is used, namely, the rotation of the handle of a portable screw jack to incomplete pendulum or full circular revolutions. Hydraulic jacks with a manual drive with a lifting capacity of 2000-5000 kGs, a lifting height of 340-500 mm, also using muscular energy, are also used.

Patents for pneumatic jacks and hydraulic with pneumatic drive are also known. The following patents have been granted for jacks: US 544123 7A, GB 1269177 A, WO 2004101296 A2, US 6895648B1, US 4605203 A. The design of the listed jacks differs from that proposed by the presence of external blower bellows, hydraulics, the use of internal protectors in sealed telescopic racks, retractable rods.

The jack is automobile, road, hereinafter referred to as a jack, characterized in that it does not contain components of known patents, and the listed patents do not have a constructive solution and components of the proposed invention. There are no analogues of the proposed invention.

The jack is automobile, road (pos. 1 in the drawing) - collapsible. It consists of a collapsible, non-sealed telescopic stand without treads (7) and a chamber (3) made of rubber - preferably, or of another airtight material. There are no requirements for tightness and installation of protectors in the rack (7). The lack of tightness and protectors greatly simplifies the design of the jack and makes the jack collapsible in road, field or stationary conditions. On the cover of the jack (4) is a platform (5) having reefs on which the car rests.

The camera (3) is located inside the rack (7) and is attached to it. The stand (7) and the chamber (3) have guides with which they are opened and folded into a predetermined or initial position. Guides in the drawing are conventionally not shown.

A nipple (6) is attached to the camera, which is displayed outside the rack (7) and attached to the rack (7). The design of the nipple (6) and its fastening to the chamber (3) repeats the design, dimensions and fastening of the nipple to the car’s wheel chamber and may have an additional thread and an asterisk for partial twisting in order to release compressed air. The use of a larger diameter nipple (6) is not ruled out in order to reduce the time of lifting a load.

The jack (1) is performed in several versions for various types of mobile equipment, any lifting capacity and various lifting heights. For cars, the jack (1) is a separate device, connected to a compressor, a widely used device for inflating car tires. Usually the compressor is connected to the cigarette lighter of the car. For cars of all classes according to the European classification, two or three sizes of the jack are sufficient (1).

For trucks and other equipment having a compressor as part of the equipment, the jack (1) can be connected to the compressor of this car through a nipple to connect the jack (1) with an additional compressed air outlet from the compressor.

The jack (1) and the compressor (2), made in one volume, can be connected by a detachable connection or a rigid one-piece connection while maintaining collapsible properties. The possibility of inflating the vehicle tires with the compressor (2) is retained.

After raising the vehicle to a predetermined height, the supply of compressed air stops, and the duct is removed from the nipple (6). To lower the car to a predetermined or initial position, the air duct is connected to the nipple (6), but the compressor does not turn on. Option: the nipple (6) is threaded and partially twisted to release compressed air.

Lifting capacity for any vehicle can be set for the jack (1) and the load lifting time can be reduced.

In cross section, the jack (1) may be square, round, rectangular, oval, etc. at the request of the manufacturer and consumer.

Collapsible telescopic stand (7) can be made of various materials: corrosion-resistant sheet metal, impact-resistant plastic, rubber, other more expensive materials and a combination of different materials and can have a different number of sections. The jack (1) can be made in a gift or souvenir design and for advertising purposes it can be decorated with monograms and brand names.

The technical result includes the expansion of the versatility and assortment of jacks for cars and other mobile equipment, the creation of a unique camera (3), the exceptional simplicity of design, manufacture, use, repair and transportation when traveling by car.

The dimensions of the jack (1) are miniature. The jack (1) is easily installed under the car at the wheel when the car is being repaired and can fit in the glove compartment of the instrument panel of the cars of the Russian Federation along with other tools when traveling by car.

The dimensions of the jack (1) and its parts, load capacity, lifting time and height, number of sections are mutually connected and determined by calculation. The calculation of the jack (1) and drawings of structural details can be presented by the author on request.

The jack (1) can be used both for lifting cars, and for lifting especially heavy vehicles, agricultural, construction, railway, army equipment.

The work of the jack. The jack is installed under the vehicle under the site of application of lifting force. An air duct is connected to the jack nipple from the compressor, which may be located close to the jack. The compressor is connected to the cigarette lighter of the car. At the touch of a button, the compressor starts up and fills the jack chamber with air, which straightens along the rails and, with an increase in internal pressure in the chamber, the jack stand also straightens. After the sections of the rack are extended to contact with the car, the compressor is turned off; jack position is centered. By pressing a button on the compressor, air continues to flow into the jack chamber and the vehicle is lifted at a given point to a predetermined height. After lifting the car to a predetermined height, the compressor turns off and the duct is removed from the nipple. Wheel replacement or other work. The possibility of lifting the proposed device was tested by the applicant in 2005.

After replacing the wheel or completing other work under the car body, the nipple is twisted a few turns or the duct from the compressor is connected to the jack nipple, but the air supply does not turn on. Under the pressure of the load, the sections of the rack are lowered, the camera is folded along the guides until the vehicle is fully supported on the wheel.

Adding the jack to its original state is not necessary, but it is not difficult to press the jack from above with your hand or foot. The addition of the jack to its original state is not facilitated by the tightness of the rack, the absence of protectors. The tightness of the rack is unacceptable, since tightness will create additional resistance to the lifting of the load and obstacles to the folding of the jack in its original state.

For the case of manufacturing a jack in the same volume as the compressor and their detachable connection, the production process does not change. With one-piece connection, the operation of connecting the duct to the nipple is excluded.

For the case when the compressor is included in the vehicle equipment, for example, trucks, the duct is connected to the compressor fitting.

The technological process of using the jack, its work should be developed by the manufacturer of the jack and the consumer.

Safety during work is the same as when working with other jacks of all types.

A brief description of the drawings. The jack (1) is shown in the drawing in the starting position - Figure 1 and with the maximum lift of the vehicle - Figure 2. Section AA is shown for claim 1, for the case of manufacturing a jack (1) as a separate item. Figure 3 shows the jack (1) according to claim 2, a top view, the starting position. Figure 1 and Figure 2 correspond to the front view of the jack (1) according to the claims 1, 2 and 3.

Claims (5)

1. A car jack, road jack, characterized in that it is used in road, field and stationary conditions, for a car that has a cigarette lighter, it is connected to an external compressor for inflating the tires of the car, and includes a rubber chamber mounted in a telescopic rack, guides of opening and returning to preset or initial position of the chamber and the sections of the rack, limiters to move the sections of the rack in all directions, a nipple for connecting to the supply of compressed air and its release, a platform with reefs for supporting the car mobile, pneumatic, collapsible, small-sized, portable. 2. The jack according to claim 1, characterized in that it is used for a car and other moving equipment, including a compressor in one volume with a pneumatic jack, collapsible, connected to the compressor with a detachable or one-piece connection, a pressure and air pressure regulator, or in different volumes connected to a car and other moving equipment equipped with a compressor connected to the jack by a detachable connection. 3. The telescopic stand of the jack according to claim 1, characterized in that the collapsible, has an airtight chamber inside, elements for attaching the camera to the stand, a hole for attaching the nipple for supplying air to the chamber and its release, strong and stable, made of metal , rubber or impact-resistant plastic, has guides of disclosure and return to the set or initial position and limiters of movement of sections of a rack and a chamber in all directions. 4. The chamber of the jack according to claim 1, characterized in that it is airtight, has fastening elements to the telescopic stand, a nipple attached to the stand for supplying air into the chamber and its release, guides for opening and returning to the preset or initial position of the chamber, and creates longitudinal force in the rack to move the load. 5. The method of lifting a car and other moving equipment, characterized in that the lifting is carried out by a jack according to claim 1.

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