JPS6116188Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vehicle maintenance elevating device that is used to attach or remove heavy objects such as engines and transmissions from the underside of the vehicle body and perform maintenance on them. .

In the past, various types of vehicle maintenance lifting devices have been proposed for attaching and removing heavy items such as engine transmissions from the underside of the vehicle body, but none of them, for example, Since the lifting device is dedicated to the engine, transmission, or these models, it is not versatile and is also expensive. For this reason, it is difficult for relatively small-scale repair shops to have all of these lifting devices, and the reality is that they are struggling to find countermeasures.

The present invention was created in view of these problems, and its purpose is to use a lifting device such as a garage jack, which is available at any vehicle repair shop, to To provide a lifting and lowering device for vehicle maintenance with a simple structure, capable of lifting even a heavy object of a different shape, saving equipment costs in a repair shop, and effectively utilizing space in the shop.

An embodiment of the present invention will be described below with reference to the drawings. In Figs. 1 and 2, heavy objects such as an engine E and a transmission T are lifted and lowered by a lifting device 100 for vehicle maintenance according to the present invention. This elevating device 100 is made up of a garage jack 10 and a pedestal 20 attached to a support stand 11 of the garage jack 10. The garage jack 10 is a conventionally known one, and has a handle 1 attached to the rear end of the chassis 12.
By swinging the arm 3 back and forth, pressure oil is supplied from a hydraulic pump (not shown) to a hydraulic jack (not shown), and the operation of the hydraulic jack raises the elevating arm 14, which has a support base 11 attached to its tip. In addition, this garage jack 10 has a handle 13
By turning a screw 15 attached to the tip of the hydraulic jack, the pressure oil in the hydraulic jack is discharged and the elevating arm 14 is lowered. Further, the support stand 11 of the garage jack 10 is formed with a support hole 11a for supporting the support column 24 of the support stand 20 or a saucer (not shown). The garage jack 10 is moved by pushing and pulling the chassis 12 using the handle 13.

As shown in an enlarged view in FIG. 3, the cradle 20 includes a base 21 formed in a substantially T-shape,
A pair of left and right front support members 22, 22 and a rear support member 23 respectively attached to the upper surface of 1;
It consists of a pillar 24 that is fixed to the lower surface of the base 21 at the substantially center and hangs down. The base 21 has horizontal elongated holes 25a, 25b and an anteroposterior elongated hole 25 in its left and right arm portions 21a, 21b and rear end portion 21c.
They each have c. Each support member 22, 23
These are bases 22a and 23a attached to the left and right arms 21a and 21b of the base 21, and these bases 22.
It consists of support portions 22b and 23b which are integrally provided vertically on the upper and lower portions a and 23, respectively, and support the lower side portions of heavy objects such as the engine E and the transmission T. Each support member 22, 23 has its base 22
a, 23a with bolts 26a to 26c inserted through the elongated holes 25a to 25c, and guide grooves 27a to 27c formed on the lower surface of each support member 22, 23 are fitted into each arm portion 21a to 21c. It is installed by fitting. As a result, each of the supporting members 22, 22 is positioned and fixed so that the position can be adjusted in the left-right direction, and the supporting members 22, 22 are
3 is positioned and fixed so as to be adjustable in the front-rear direction, and each support member 22, 23 is guided without changing the direction of each support part 22b, 23b when positioning on the base 21. The fixed position of the strut 24 with respect to the base 21 is such that when the pedestal 20 is attached to the garage jack 10 and a heavy object such as the engine E is supported on each of the support parts 22b and 23b, the center of gravity of the support 24 is fixed to the garage jack 10. It is determined to be located between both wheels 16, 16 attached to the chassis 12 of the vehicle. Therefore, this pedestal 20 is inserted into the support hole 11a of the support pedestal 11 from which the pedestal (not shown) has been removed.
By inserting the lower end of 4, it can be easily attached to the garage jack 10.

Next, place the above-mentioned pedestal 20 on the garage jack 1.
Vehicle maintenance lifting device 10 configured by being attached to
0 will be used to explain the work procedure for lifting and lowering heavy objects to be serviced, such as engine E and transmission T. First, as shown in FIG. 1, the cab-over type vehicle body B is horizontally placed on the front and rear rigid tracks L and L using the garage jack 10 (normal garage jack) with a saucer (not shown) attached to the support stand 11. Place it in a shape. After this work, the receiving plate is removed from the support stand 11 of the garage jack 10, and the lower end of the column 24 of the stand 20 is inserted into the support hole 11a of the support stand 11, thereby completing the vehicle maintenance lifting device 100. In this case, the fixed position of each support member 22, 23 with respect to the base 21 of the cradle 20 is such that each support part 22b, 23b is fixed to the base 21 of the cradle 20.
Adjust the position in advance so that it can support the lower part of the Next, this elevating device 100 is carried under the vehicle body B, the pedestal 20 is raised by operating the handle 13, and each support portion 22b, 23b is connected to the engine E.
Remove the engine E and transmission T from the vehicle body B. Then, as shown in FIG. 2, the engine E and the transmission T integrated therewith are properly supported on the pedestal 20. Thereafter, by turning the screw 15 to slowly discharge the pressure oil in the hydraulic jack, the pedestal 20 is lowered, and the vehicle maintenance lifting device 10 is moved from the underside of the vehicle body B together with the engine E and transmission T. Transport it to the maintenance work location and perform maintenance on engine E and transmission T.
Further, in order to attach the engine E and transmission T to the vehicle body B after the maintenance is completed, it is sufficient to carry out the procedure in reverse to that described above. In addition, in this embodiment, the work procedure for raising and lowering the engine E and the transmission T at the same time was explained.
It is also possible to remove each transmission T separately and raise and lower it.

Therefore, in the vehicle maintenance elevating device 100 configured as described above, it is sufficient to prepare only the pedestal 20 and use the garage jack 10, which saves equipment costs at the maintenance shop, and moreover, does not require the conventional method. The space within the factory can be used more effectively compared to having dedicated equipment for each type of equipment.

Further, FIG. 4 shows a pedestal 20A that is a modification of the pedestal 20 described above. In this case, a support plate 28 parallel to both arms 21a and 21b is provided at the rear end 21c of the base 21, and a bolt 26c is inserted into the elongated hole 25c.
By inserting it through and fixing it, the position can be adjusted in the front-back direction and it is fixed horizontally. This support plate 28 has arm portions 28a and 28b having approximately the same length as each arm portion 21a and 21b of the base 21, and each of these arm portions 28a and 28b has a horizontal elongated hole 29.
a and 29b are formed respectively. Further, a guide portion 28c is integrally provided vertically at the rear end edge of the support plate 28, and a guide groove 28c is provided on the lower surface of the support plate 28.
7c is formed. Furthermore, this pedestal 10A
A pair of left and right support members 23 each include a base portion 23a and a support portion 23b integrally provided on the base portion 23a.
A, 23A, each of these supporting members 23
A is fixed on the support plate 28 so that its position can be adjusted in the left-right direction by inserting and fixing each bolt 26d into each elongated hole 29a, 29b. In this case, the guide portion 28c of the support plate 28 guides each support member 23A so that the direction thereof does not change when positioning the support member 23A. In addition, since the other configurations are completely the same as the pedestal 20 described above, the same members are given the same reference numerals and the explanation thereof will be omitted.

Therefore, in the vehicle maintenance lifting device 10D configured by assembling such a pedestal 20A to the garage jack 10, the mounting position of each support member 23A is different from that of the rear support member 23 of the pedestal 20 described above. Since it can be adjusted over a wider range, it can accurately support heavy objects such as large engines at the lower rear. Moreover, this pedestal 20A is similar to the pedestal 20A described above.
In addition, if only the pair of left and right support members 23A, 23A and the support plate 28 are prepared separately, and these are attached in place of the rear support member 23 of the pedestal 20, the structure can be easily configured and equipment costs can be reduced. You can save money,
Furthermore, compared to preparing each dedicated device, the effective space within the factory is not reduced.

Furthermore, if the lower part of a heavy object such as an engine has a special shape, for example, the front lower part of the heavy object is inclined with respect to the upper part, as illustrated in FIG.
Only the shape of each support member 22B, 23B of the pedestal 20B needs to be formed to match the shape of the lower part of the heavy object. In this case, a pair of left and right front support members 22B,
22B, each support portion 22b' is formed in an inclined shape, and the base 2 of the rear support member 23B is
On 3a', a pair of left and right support parts 23b', 23b' are erected and fixed with their respective support surfaces 23c facing each of the front support members 22B. The rest of the structure is the same as that of the pedestal 20 described above, so the same members are given the same reference numerals and their explanations will be omitted.

Thus, a vehicle maintenance lifting device 10 configured by attaching this pedestal 20B to a garage jack 10
0, even if the lower part of a heavy object such as an engine has a special shape, the support portion 2 of each support member 23B
2b' and each support portion 23b' of the support member 23B can appropriately support the support member 2b'. Moreover, in addition to the above-mentioned pedestal 20, this pedestal 20B has only a pair of left and right front support members 22B, 22B and a rear support member 23B separately prepared, and these are attached to the pedestal 20B.
If they are attached in place of the support members 22 and 23 of 0, the structure can be simplified, equipment costs can be saved, and space in the factory can be used effectively.

In summary, in the present invention, the elevating device for vehicle maintenance is effectively utilized, such as a garage jack, which is always provided in a vehicle repair shop, so that only the pedestal can be used for various engines.・
By preparing a number of basic types of heavy objects such as transmissions, it is possible to accurately adapt to any shape of heavy object and safely perform lifting and lowering operations. Therefore, compared to the case where all (a large number of) dedicated vehicle maintenance lifting devices suitable for heavy objects of various shapes are provided, equipment costs can be greatly reduced, and the vehicle The dedicated space for maintenance lifting equipment can be greatly reduced, allowing effective use of space within the factory.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing a state in which a heavy object such as an engine is being attached to and removed from a vehicle body using the vehicle maintenance lifting device according to the present invention;
FIG. 3 is an enlarged perspective view of the pedestal, and FIGS. 4 and 5 are perspective views of modified examples of the pedestal. 100... Lifting device for vehicle maintenance, 10... Garage jack (lifting device), 11... Support stand, 1
2...Car chassis, 20, 20A, 20B...cradle, E
...engine, T...transmission.

Claims (1)

[Scope of utility model registration request] It consists of an elevating device such as a garage jack equipped with a support base, and a pedestal that is convertibly attached to and supported by the support base of the elevating device, and the cradle is connected to the base and the top surface of the base. A first support member is attached to the side so that its position can be adjusted in the left-right direction, and supports heavy objects such as engines and transmissions installed in the vehicle to be maintained. a second support member that is attached so as to be adjustable in position in the direction and supports the heavy object; and a second support member that is integrally provided on the lower surface of the substantially central part of the base and is removably fitted into the support hole of the support base. An elevating device for vehicle maintenance, comprising: a supporting column.