JPH0575283U - Lifter - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention provides a lifter capable of smoothly and safely assembling or dismounting a heavy object such as a muffler or a transmission on a large vehicle such as a truck. [Structure] A pair of air cylinders 3 and 3 with a cushioning mechanism are installed vertically on the left and right of a portable table 1 with casters, and receiving members 4 and 4 are provided at the upper ends of the respective air cylinders 3 and 3. It is characterized in that it is fixed and connected to an air source, and is provided with a control valve 5 for switching air supply / discharge to a pair of left and right air cylinders 3, 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a lifter for assembling automobile parts.

[0002]

[Prior Art]

 Conventionally, when assembling heavy items such as mufflers and transmissions on large vehicles such as automobiles, especially trucks, they are hoisted by electric hoists.

[0003]

[Problems to be solved by the device]

 Since the muffler and transmission are installed on the bottom surface of the frame, it was difficult to assemble them with the electric hoist described above, and at least two workers were doing the assembly work.

An object of the present invention is to provide a lifter that solves the above-mentioned conventional problems.

[0005]

[Means for Solving the Problems]

 To achieve the above object, the present invention is characterized by a transporter with casters, a pair of left and right air cylinders with a cushion mechanism installed vertically on the transportable platform, and The air cylinder includes a receiving member fixed to the upper end of the air cylinder, and a control valve connected to the air source and switching the supply and discharge of air to the pair of left and right air cylinders.

[0006]

[Action]

 With the above configuration, one operator can operate the control valve to move the air cylinder up and down, and raise the muffler or transmission mounted on the receiving member to the specified assembly location for assembly. And Further, when the muffler or transmission is removed from the vehicle and the vehicle is lowered, even if the control valve is switched to the lower side, the buffer mechanism does not cause a sudden lowering and the vehicle can be lowered safely.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 is a portable table to which a caster 2 is attached. A pair of air cylinders 3 and 3 with a cushioning mechanism are installed on the left and right of the portable table 1 so as to be vertically movable. On the upper ends of the respective air cylinders 3 and 3, receiving members 4 and 4 for mounting an ascending / descending object such as a muffler or a transmission are fixedly installed.

As shown in FIG. 3, the air cylinders 3 and 3 with the cushioning mechanism cushion an up-and-down body 3a that moves up and down with a guide rod 3b fixed to a fixed portion 3c as a guide, and a downward movement of the up-and-down body 3a. For this purpose, the buffer mechanism 3e is filled with oil, and the boot 3d is formed by connecting the fixed portion 3c and the lifting body 3a. By supplying air to the space inside the boot 3d, the boot 3d is axially moved. It is inflated to raise the lifting body 3a.

A control valve 5 for controlling the lifting and lowering of the air cylinders 3, 3 is installed on the portable table 1. The control valve 5 is connected to the pair of air cylinders 3 and 3 via a pipe 6, and is also connected to an air source in a factory (not shown in FIG. 1) via a pipe 8. A regulator 7 is attached to the pipe 8 so that the air pressure can be adjusted.

In FIG. 2, the air tank 9 is installed on the portable table 1 and the control valve 5 is connected to the air tank 9 so that it can be used even in a factory where there is no air source.

As shown in FIG. 4, the control valve 5 has an air pressure introduction port 5e from an air source, an air supply / discharge port 5f communicating with the air cylinder 3, and an air exhaust port 5g, and a lever 5a. The valve 5b for opening / closing the air pressure introducing port 5e, the valve 5c for opening / closing the air supply / exhaust port 5f, and the valve 5d for opening / closing the air exhaust port 5g.

Since the structure of the present invention is as described above, in the control valve 5, the air pressure introducing port 5e is closed by the valve 5b, and the air supply / exhaust port 5f is the valve 5c and the passage from the air pressure introducing port 5e. When the valve is closed, the valve 5d of the air exhaust port 5g is open, the inside of the boot 3d of the air cylinders 3, 3 is in communication with the atmosphere, and the lift 3a is located at the lower end. When mounting the muffler or the like on the vehicle body, a heavy object such as the muffler is placed on the receiving members 4 and 4 in this state.

Then, the lever 5a of the control valve 5 is operated so that the air pressure introducing port 5e opens the valve 5b and the valve 5c of the air supply / discharge port 5f, and interlocks to close the valve 5d of the air exhaust port 5g. As a result, the air pressure from the air source is supplied into the space of the boots 3d of the air cylinders 3 and 3, and the lift 3a is moved upward. The raised position of the lifting body 3a is controlled by operating the control valve 5.

When removing the muffler or the like assembled in the vehicle, the elevating body 3a is raised and the removed muffler or the like is placed on the receiving members 4 and 4, and the elevating body 3a is lowered and placed on the ground. take down. At this time, the valve 5d of the air exhaust port 5g of the control valve 5 is opened to exhaust the air pressure in the boot 3d of the air cylinders 3, 3 to the atmosphere. Therefore, the elevating body 3a descends due to the load of a heavy object such as a muffler, but the buffer mechanism 3e prevents a sudden descending motion, and safely descends at a moderate speed.

[0015]

[Effect of the device]

 As described above, according to the present invention, a pair of air cylinders with a buffer mechanism are installed vertically on the left and right of a portable table with casters, and a receiving member is fixed to the upper end of each of the air cylinders. Since it is connected to an air source and is equipped with a control valve that switches air supply and discharge to the pair of left and right air cylinders, a muffler and a heavy load of the transmission are attached to or removed from the vehicle body. At times, since it moves up and down on the lower surface of the vehicle body, smooth assembly or removal work can be performed by one operator.

Further, since the air cylinder is equipped with a buffer mechanism, even if the control valve is switched to the lowering direction when lowering a heavy object, it does not suddenly move down, and a safe state with a slow speed is provided. It has the advantage that it can be moved down.

[Brief description of drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a perspective view of another embodiment of the present invention.

FIG. 3 is a sectional view of an air cylinder.

FIG. 4 is a sectional view of a control valve.

[Explanation of symbols]

 1 Portable table 3 Air cylinder 4 Receiving member 5 Control valve

Claims (1)

[Scope of utility model registration request] 1. A portable table with casters, a pair of left and right air cylinders with a cushioning mechanism installed vertically on the portable table, and receiving members fixed to the upper ends of the respective air cylinders. A lifter comprising: a control valve connected to an air source and switching the supply and discharge of air to the pair of left and right air cylinders.