JP2948484B2 - Jack for attaching / detaching assembly equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jack for attaching / detaching an assembly device.

[0002]

2. Description of the Related Art In general, a detachable jack for supporting a transmission is used in a detaching work for removing a transmission of an automobile from a vehicle body and assembling the vehicle body again after repairing the transmission. There are various differences.

For this reason, as described in Japanese Utility Model Laid-Open Publication No. 54-27453, a jack for detaching work has been proposed which can cope with transmissions of various shapes by one unit. Referring to FIG. 6, a jack 1 is a truck that can be freely moved to a free position by wheels. The lifting arm 2 provided on the truck 1 is raised and lowered by hydraulic pressure generated by operating a hydraulic cylinder operating rod 3. The base plate 4 is mounted on the tip of the lifting arm 2 so as to maintain a horizontal state.

[0004] At each of the four corners of the base plate 4, columns 5 are erected, and at the upper end of each column 5, a bifurcated chain stopper 6 is provided. A chain 7 is extended between the chain hooks 6 of the two pairs of columns 5 with slack.

When the transmission mounted on the vehicle body is to be removed, the slack of the chain 7 is adjusted and set in advance by the chain stopper 6 in accordance with the shape of the transmission to be removed. The base plate 4 is lifted by the lifting arm 2 from below, and the chain 7 is lightly brought into contact with the lower side of the transmission.

At this time, if any one of the front and rear chains 7 is slack and does not completely contact, the slack of the chain 7 is adjusted again so that the transmission is evenly supported by the front and rear chains 7.

Next, the transmission supported on the chain 7 is pulled out of the vehicle body by lowering the base plate 4 by the lifting arm 2 and transported to the repair work position. When the transmission is mounted on the vehicle body after repair, In the same manner as described above, the transmission is mounted on the chain 7 and is elevated from a lower part of the vehicle body to a predetermined position to be mounted on the vehicle body.

[0008]

However, in the case of the conventional jack for detachment work as described above, since it is necessary to adjust the slack of the chain 7 in a narrow place under the vehicle body, the detachment work is troublesome. There was such a problem.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and can cope with various types of assembled devices (transmissions) by a single unit. It is an object of the present invention to provide a jack for attaching / detaching an assembling device which can be easily and reliably held on a base plate without any necessity of an adjusting operation and can be detached from an assembling position.

[0010]

According to the present invention, a base plate is provided on a movable carriage so as to be able to move up and down, and a pair of standing plates are arranged on the base plate so as to face each other at a required interval. The present invention relates to a jack for attaching / detaching an assembling device, wherein gas bags capable of being inflated and contracted are mounted on opposing surfaces, respectively, so that gas for filling can be supplied and discharged into both gas bags.

[0011]

Therefore, according to the present invention, the mounting plate such as the installed transmission is lifted from below to make the base plate lightly contact the lower side of the mounting device, so that the gas bags are filled in both gas bags. Is introduced and inflated, and the assembling device is held and fixed by both gas bags, and in this state, the assembling device is taken out of the assembling position by lowering the base plate and transported to a repair work position or the like. Then, the filling gas is discharged from both gas bags to release the fixed state of the assembling device, and the assembling device is lowered from the base plate to perform a repair work or the like.

Further, when the transmission is mounted on the vehicle body after the repair, the assembly device may be held by the gas bag and ascended from below a predetermined assembly position in the same manner as described above. .

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 to 5 show an embodiment of a jack for attaching and detaching work of an assembling apparatus according to the present invention.
The lifting arm 10 provided on the carriage 8 can be raised and lowered by hydraulic pressure generated by operating a hydraulic cylinder operating rod 11. The base plate 12 is mounted so as to maintain a horizontal state.

As such a mechanism, a mechanism similar to a mechanism conventionally used in this type of detachable jack may be used, and an example thereof will be described with reference to FIG.
The base end of an L-shaped bent elevating arm 10 is pivotally mounted on both sides of the rear portion of the carriage 8 via pins 13. And one end of the lever 14 and the tip of the lifting arm 10 are mounted via a pin 16;
The distal end of a support 18 having a proximal end pivotally attached to the rear end of the carriage 8 via a pin 17 is also pivotally connected to the pin 16.

A hydraulic pump 19 is pivotally supported at the bent portion of the elevating arm 10 via a pin 20, and a piston rod 22 of a hydraulic cylinder 21 provided at the tip of the hydraulic pump 19 is supported by a bogie via a pin 23. 8, the hydraulic cylinder operating rod 11 is moved up and down to generate hydraulic pressure with a hydraulic pump 19, and the piston rod 22 of the hydraulic cylinder 21 is extended by the hydraulic pressure so that the lifting arm 10 is centered on the pin 13. When the hydraulic pump 21 releases the hydraulic pressure generated in the hydraulic pump 19, the piston rod 22 of the hydraulic cylinder 21 is contracted so that the elevating arm 10 can fall.

As shown in an enlarged view in FIG. 4, a pin 24 is attached to the other end of the lever 14 pivotally attached to the lower surface of the base plate 12.
Is provided, a nut 28 is provided at the lower end of a bracket 26 provided on the lower surface of the rear end of the base plate 12, and a nut 28 is provided. The handle 28 is provided with a handle 29 at one end. The other end of the shaft 30 provided is held by the holder 25 so as to be rotatable about the axis of the shaft 30, and a male screw portion 31 formed in the middle of the shaft 30 is screwed through the nut 28. The shaft 30 is rotated by a handle 29 to adjust the distance between the other end of the lever 14 and the lower end of the bracket 26 so that the base plate 12 can be tilted about the pin 15. It is.

As described above, the upright standing plates 32, 32 are opposed to each other on both sides in the width direction of the base plate 12 provided on the carriage 8 so as to be able to move up and down.
Rubber airbags 33 (gas bags), which are inflatable and contractible, are mounted on the opposing surfaces 32a, 32a via clamps 34 and holding plates 35, respectively.

The cart 8 includes a check valve 3.
An air inlet 37 having one end 6 and a gauge 38
After passing through a regulator 39, an opening / closing valve 40, and a relief valve 41, the other end is branched into two systems and connected to the airbags 33, 33. (See FIG. 2).

In the drawing, reference numeral 43 denotes the airbags 33, 3;
A factory air (filling gas) for introducing into 3, an air supply pipe 44 for guiding the factory air 43 to an air intake of the filling gas flow path 42, and a transmission (assembly device) 45. Show.

By moving the hydraulic cylinder operating rod 11 up and down, hydraulic pressure is generated by the hydraulic pump 19 and the piston rod 22 of the hydraulic cylinder 21 is extended, whereby the lifting arm 10 is moved around the pin 13. The base plate 12 is raised from below the transmission 45 while holding the base plate 12 in a horizontal state by rotating the shaft 30 with the handle 29 by the upright operation, and lightly abuts on the lower side of the transmission 45.

Next, an air supply pipe 44 is connected to the air inlet 37 of the gas passage 42 for enclosing, the opening / closing valve 40 is opened, and the factory air 43 is introduced into the airbags 33, 33 so that the airbags 33 are opened. 33, 33 are inflated and the gauge 38
After adjusting the air pressure with the regulator 39 while confirming the above, the open / close valve 40 is closed, and the factory air 43 is sealed in the airbags 33, 33 while maintaining a predetermined air pressure, so that the transmission 45 is connected to the airbags. 3
Hold and fix with 3,33.

In this state, the transmission 45
The fixed state of the transmission 45 is released by lowering the base plate 12 to take it out of the vehicle body and transport it to a repair work position or the like, and discharging the factory air 43 from the airbags 33 and 33 via the relief valve 41. Then, the transmission 45 is lowered from above the base plate 12 to perform repair work or the like.

Further, when the transmission 45 is mounted on the vehicle body after the repair, the transmission 45 may be held by the airbags 33, 33 and assembled from below the vehicle body in the same manner as described above.

Therefore, according to the above-described embodiment, the two airbags 33, which inflate according to the shape of the transmission 45,
Since the transmission 45 is held and fixed by 33, it is possible to cope with transmissions 45 of various shapes that are different depending on a vehicle type and a manufacturer with a single jack for detachment work. The transmission 45 can be easily and reliably mounted on the base plate 12 simply by enclosing the factory air 43 in the airbags 33 and 33 and inflating them without any special adjustment work according to the shape of the transmission 45. It can be held and removed from the vehicle body.

The jack for attaching and detaching work of the assembling apparatus of the present invention is not limited to the above-described embodiment.
The raising and lowering mechanism of the base plate is not limited to the example shown, that the assembly device may be something other than the transmission, that the filling gas may be something other than factory air,
In addition, it goes without saying that various changes can be made without departing from the spirit of the present invention.

[0027]

According to the above-described jack for attaching / detaching the assembling apparatus according to the present invention, the assembling apparatus is held and fixed by the two gas bags which expand according to the shape of the assembling apparatus. Because there is, it is possible to cope with the assembly equipment of various shapes that are different depending on the vehicle type and the manufacturer, and further, without requiring special adjustment work according to the shape of the assembly equipment, It is possible to obtain an excellent effect that the mounting device can be easily and reliably held on the base plate and can be detached from the mounting position only by filling and inflating the filling gas into both gas bags.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a system diagram of an encapsulating gas flow channel of FIG.

FIG. 3 is a side view showing an elevating mechanism of the base plate in one embodiment of the present invention.

FIG. 4 is an enlarged view showing a tilting mechanism of the bed plate of FIG. 3;

FIG. 5 is a front sectional view showing a state in which the transmission is held by both airbags of FIG. 1;

FIG. 6 is a perspective view showing a conventional example.

[Explanation of symbols]

 8 cart 12 bed plate 32 upright plate 32a facing surface 33 air bag (gas bag) 43 factory air (gas for filling) 45 transmission (assembly equipment)

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁶ , DB name) B60S 5/00 B60S 9/00-13/02 B66F 3/24 B66F 5/00-5/04

Claims (1)

(57) [Claims] 1. A vertically movable base plate is provided on a movable vehicle, and a pair of standing plates are arranged on the base plate at a predetermined interval so as to face each other. A jack for attaching / detaching an assembling device, wherein a bag is attached to each of the gas bags, and the gas for filling is supplied and discharged into both gas bags.