JPH11286394A - Lift device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance an operation efficiency, simplification of structure, and reducing costs by automatically raising swing arms horizontally upward above an upper side board by using the driving force of the actuator of a lift device main body insetting a chassis type vehicle onto the swing arms. SOLUTION: A support plate 5 is formed out of two articles composed of a lower side board 6 and an upper side board 7, wherein the lower side board 6 is faced to the bottom surface of a pit 1 when a lift device X is not in use, and the upper side board 7 has an upper plate abutting part 15 positioned while an internal space is held with respect to the upper surface of the lower plate supporting part 10 of the lower side board 6, an arm supporting part 11 projected out of the side wall 16 of the upper side board 7, is formed in the lower side board 6, and swing arms 20 are rotatably supported by the arm supporting part 11. When the lift device X is in use, the swing arms come in contact with the side wall of the upper side board 7 after the lower side board 6 is fitted in the internal space of the upper side board 7, and the swing arms 20 thereby reach the upper surface of the upper plate abutting part 15 in such a way that they can be put on the upper plate abutting part 15 of the upper side board 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lift device for a vehicle, and particularly to a vehicle having a relatively flat underbody (passenger vehicle system: a general vehicle having a side sill) for maintenance work such as inspection and maintenance of a vehicle. And a pair of left and right support plates for supporting a passenger car, and a vehicle (truck system: chassis type RV without side sill) with an underfloor frame.
And a horizontal swing arm for supporting a vehicle, a truck, etc.).

[0002]

2. Description of the Related Art Conventionally, this type of vehicle lift device is
If the side sill of a vehicle such as a mini car or ordinary passenger car can be easily supported by a pair of left and right support plates, take advantage of this advantage. When the vehicle cannot be supported, the chassis is supported by a horizontal swing arm instead of the support plate.

A first object of the invention in which the support plate and the horizontal swing arm are selectively used as described above is that the vehicle cradle (the support plate and the horizontal swing arm) can be used when the lift device is not used. It is intended to be housed in a pit formed on the floor substantially flush with the floor so as not to disturb the loading and unloading and maintenance work. Next, a second object of the present invention is to provide a horizontal swing arm mounted on a support plate (for example, pivotally supported) from a position below the support plate (for example, an outer wall of the support plate) when a lift device is used. Automatically move to an upper position (for example, slightly above the upper surface of the support plate)
Thereafter, the operator can manually set the horizontal swing arm.

[0004] In order to solve the problem of the invention, an example is disclosed in, for example, Japanese Patent No. 2664359.

The vehicle maintenance lift disclosed in this patent publication basically uses a pair of left and right plates that move up and down from inside a pit by the driving force of an elevation drive device of a lift device main body, and a horizontal swing arm. Each of the plates is detachably attached to the outside of a substantially central portion of the plate via an engagement means, and is moved to at least a position higher than the upper surface of the plate by a driving force of a driving cylinder disposed on the plate via a support member. And a pair of swing arms that rise horizontally.

However, in the vehicle maintenance lift having the above structure, when a chassis such as an RV vehicle or a truck is supported by the swing arm, a pair of swing arms must be mounted on the pair of left and right plates each time. The maintenance work is troublesome, and the lifting and lowering drive means (for example, a driving cylinder) dedicated to the swing arm is required to raise the swing arm horizontally to a position above the upper surface of the plate. And the cost is high.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art, and a first object of the present invention is to prevent a vehicle cradle from moving in and out of a vehicle and maintenance work when the lift device is not used. It is not to become. The second purpose is to set the chassis type vehicle on the swing arm, etc.
Elevating drive means (drive cylinder,
Even without using a manual crank mechanism, the swing arm is automatically raised horizontally to the position above the upper board by using the driving force of the actuator (hydraulic cylinder or drive link) of the lift device body. That is what you can do. Thus, the work efficiency can be improved, the structure can be simplified, the cost can be reduced, and the like. A third object is to allow the upper board as a support plate to receive the load of the vehicle applied to the swing arm when supporting the chassis type vehicle with the swing arm, thereby increasing the support rigidity of the swing arm.

[0008]

According to the present invention, there is provided a lift apparatus for an automobile, wherein the support plate moves up and down by a driving force of a driving means for the support plate below the floor, and the support plate is moved horizontally along the outer wall of the support plate. In a vehicle lift device in which a swing arm provided in a state is substantially housed in a pit formed on a floor surface, the support plate is positioned with respect to the bottom surface of the pit when the lift device is not used. The lower board is composed of two articles, an upper board having an internal space with respect to the upper surface of the lower board supporting portion of the lower board and an upper board abutting portion located thereon. An arm support protruding from the side wall is formed, and the swing arm is pivotally supported on the arm support. On the other hand, when the lift device is used, the swing arm is used after the lower board is inserted into the internal space of the upper board. Contact the wall of the upper board It features that lead to the upper surface of the upper plate contact portion so as to be able to put the upper plate contact portion of the upper board and.

In the above configuration, a plurality of stoppers 8 are provided in the pit 1, and the side walls 16 of the upper board 7 are supported by the stoppers 8 when the support plate and the swing arm are stored in the pit. Characterize. Further, the base end of the swing arm 20 is pivotally supported via a pivotal support member 21 provided on the upper surface of the arm support 11 of the lower board 6. At the base end of the swing arm 20, a downward recess 30 is formed.
Is fitted with a spring member 25 for slightly lifting the swing arm 20 with reference to the upper surface 15b of the support plate 5.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention shown in the drawings is described below in which a floor of a maintenance shop for performing maintenance work such as inspection and maintenance of a car, a hydraulic device, a lifting drive means and the like are buried in a pit. The relationship between the receiving stand of the auto lift (the lower board and the upper board as the support plate, the horizontal swing arm) will be mainly described.

In FIGS. 1 to 7, X is a first embodiment of a vehicle lift apparatus to which the present invention is applied. The lift device X is an example of a buried-type auto lift having a lifting means such as a synchronization means and a drive cylinder in a pit.

That is, reference numeral 1 denotes pits formed on the floor surface F. The pits 1 are formed in a concave shape when viewed from a plane as shown in FIG. Here, if reference is made to the inner wall surface of the pit 1 with reference to FIG. 2, 1a is its bottom surface and 1b is its side surface. Reference numeral 2 denotes a pit cover plate, and the pit cover plate 2 is appropriately provided at a central opening communicating with left and right rectangular openings, respectively, with reference to FIG. Pit cover plate 2
Are located on the same plane with respect to the floor surface F.

Reference numeral 3 denotes support plate cylinders provided vertically in the left and right rectangular openings of the pit 1, respectively. Hereinafter, since the left and right support plate cylinders 3, 3, the operating rods 4, 4, the support plates 5, 5, the swing arm 20, the stopper member 8 provided in the pit, and the like are the same on the left and right, the members on one side are provided for convenience. Only the other side will be denoted by the same reference numeral, and redundant description will be omitted.

First, as a support plate cylinder 3 as an example of an actuator (driving means), a hydraulic cylinder is generally used, and is opposed to left and right. The ram as the operating rod 4 expands and contracts in the vertical direction by the pressure medium in the hydraulic cylinder 3. In this embodiment, the long plate-shaped support plate 5 as a vehicle receiving stand is provided on the lower board 6 fixed to the upper end of the operating rod 4 and on the upper surface of the lower board 6 when the lift device X is used. And an upper board 7 which is loosely mounted on the lower board 6 so as to be pushed up.

As shown in FIG. 4, the lower board 6 is a horizontal board or a plate, and is moved up and down by the operating rod 4. On the other hand, the upper board 7 looks like a so-called shallow bottom fresh fish case. That is,
The upper board 7 is housed in the pit 1 so as to be located substantially on the same plane as the floor F as shown in FIG.
When supported by a pair of rod-shaped stoppers 8, 8 appropriately disposed on the bottom surface 1 a in the pit 1, the lower board 6 separates from the upper face of the lower board 6 when it is supported. It is supported on the upper surface in surface contact. As described above, the support plate 5 is used when supporting a side sill type vehicle. Therefore, in the present embodiment, the support plate 5 is divided into two articles, the lower board 6 and the upper board 7 which exhibits a support function in cooperation with the lower board 6.

Therefore, the structure of the lower board 6 will be described first. Reference numeral 10 denotes a lower plate supporting portion capable of contacting the lower surface of the inner wall of the case-shaped upper board 7.
With reference to FIG. 2, the left and right side surfaces 1b, 1b of the pit 1
Is located between the rod-shaped stoppers 8, 8 which are provided so as to extend along.

When the pit is stored in the support plate without using the lift device X, the lower surface 10a of the lower plate support portion 10 directly or indirectly abuts against the bottom surface 1a of the pit 1, while the upper surface 10b is in the form of a rod-shaped stopper. 8 is located on substantially the same plane as the upper surface 8a. Reference numeral 11 denotes the lower plate supporting portion 10.
Arm support portion protruding from the center of the outer wall 10c of
The arm support portion 11 is formed with a shaft hole 12 for supporting two swing arms respectively. In the present embodiment, the arm support 11 extends on the same horizontal plane as the lower plate support 10.

Next, the configuration of the upper board 7 will be described. Reference numeral 15 denotes an upper plate contact portion that directly contacts the side sill type vehicle. The lower surface 15a of the inner wall of the upper plate contact portion 15 can contact the upper surface 10b of the long plate-like support portion 10 of the lower board 6. . On the other hand, the upper surface 15b of the upper plate contact portion 15 is
Is stored in the pit 1 and is located substantially on the same plane as the floor surface F. In this embodiment, reference numerals 16 denote opposing side walls extending downward from the respective side ends of the upper plate abutting part 15, and in these opposing side walls 16, the positions of the arm supporting parts 11 are set. A fitting notch 17 is formed at the center of one corresponding outer facing side wall 16a. The notch of the fitting notch 17 extends from the lower end surface of the outer facing side wall 16a to the lower surface 15a of the inner wall of the upper plate contact portion 15 described above.

However, the height of the skirt-like opposing side wall 16 of the upper board 7 is longer than the thickness of the lower board 6 as shown in FIG. Therefore, when the lower board 6 is raised by the driving force of the actuator when using the lift device X, the lower board 6 is completely fitted into the upper board 7.

Reference numeral 20 denotes a swing arm pivotally supported by a pivot member 21 via a pivot 22 so as to be rotatable in the horizontal direction. As shown in FIG. 1, a total of four swing arms 20 are provided on the upper surface of the arm support portion 11 of the lower board 20 via the fixed pivoting member 21 such as two front and rear sides on the left side and two front and rear sides on the right side. Is provided. These swing arms 20 can swing each other by manual operation. The swing arm 20 has a vehicle body receiving arm 23. The vehicle body receiving arm 23 is inserted into the distal end portion of the swing arm 20 so as to be able to expand and contract, and the expansion and contraction is performed by a manual operation of a maintenance worker. Further, a height-adjustable receiving metal 24 is screwed to a tip end of the vehicle body receiving arm 23.

As shown in FIG. 4, the fixed pivot member 21 is configured to be able to pivot the bases of the two front and rear swing arms 20, respectively. The arm support portion 11 of the lower board 20 is located along the outer facing side wall 16a.
Is appropriately fixed to the upper surface of the. In this case, the relationship between the swing arm 20 and the upper board 7 is substantially the same as the upper board 7 when the support plate 5 (the lower board 6 and the upper board 7) is completely stored in the pit 1 as shown in FIG. Located on top. Therefore, the swing arm 20 is connected to the upper board 7
And on the substantially same plane as the floor surface F. On the other hand, when the lower board 6 is completely ascended into the upper board 7 when the lift device X is used, the swing arm 20 slightly rises above the upper surface 15b of the upper board 7 as the lower board 6 rises. Therefore, it becomes possible to manually set the swing arm 20 to a position shown by a virtual line as shown in FIG.

Next, the pivot member 21 and the spring member 25 which play a role of raising the height will be described. The pivot member 21 can be arbitrarily changed depending on the design. In this embodiment, the mounting plate 26 fixed (welded and fixed) to the upper surface of the arm support 11 so as to stably support the swing arm 20 is formed to have substantially the same width as the arm support 11. Have been. On the other hand, the vertical wall portion 27 and the horizontal wall portion 28 extending from the outer side wall of the mounting plate portion 26 at an angle are slightly smaller (shorter in length) than the mounting plate portion 26. The mounting plate portion 26 and the horizontal wall portion 28 of the fixed pivot member 21 are provided with shaft holes 29 that correspond to the shaft holes 12 of the lower board 6.
Are formed, and the above-described pivot 22 is inserted into these shaft holes 12, 29 and the like in a penetrating state. The spring member 25 is fitted in a downward recess 30 formed at the base end of the swing arm 20. The spring member 25 moves the swing arm 20 with respect to the upper surface 15b of the support plate 5 (standard).
Is a floating position setting means for slightly floating.

In the above configuration, when the lift device X is not used, the four swing arms 20 are opened linearly at the positions indicated by the solid lines in FIG. In this case, as shown in FIG. 2, the lower surface 10a of the lower plate supporting portion 10 of the lower board 6 is in contact with the bottom surface 1a of the pit 1, while its upper surface 10b is located substantially on the same plane as the upper surface 8a of the rod-shaped stopper 8. I do. The lower end surface of the opposing side wall 16 of the upper board 7 rides on the upper surface 8a of the stopper member 8, and the upper surface 15b of the upper plate contact portion 15 thereof.
Are located on substantially the same plane as the floor surface F. Further, the fixed pivot member 21 and the swing arm 20 are also substantially accommodated in the pit along the outer facing side wall 16a of the upper board. The lower boat 6 and the upper board 7 of the support plate 5 housed in the pit 1 are arranged in the internal space 3 of the upper board 7.
1 apart from each other.

Therefore, if a side sill type vehicle is to be supported by the support plate 5, the support plate cylinder 3 is driven after the vehicle gets on the left and right support plates 5. Then, the lower board 6 starts to rise with the extension of the operating rod 4, and after fitting into the internal space 31 of the upper board 7, makes surface contact with the lower surface of the inner wall of the upper board 7 and is integrated with the upper board 7. To rise. At this time, the arm support portion 11 of the lower board 6 is loosely fitted into the fitting notch 17 of the upper board 7, and the swing arm 20 slightly protrudes from the upper surface 15b of the upper board 7, but is left in a straight line state. Keep it. When the vehicle can be easily set only by the left and right support plates 5 as described above, the advantage is taken advantage of and the four swing arms 20 are used.
Is not used.

On the other hand, when a vehicle such as a wagon or a small truck cannot be supported by a pair of left and right support plates 5, a swing arm 20 is used.

As described above, it slightly rises from the support plate 5,
As a result, the upper surface 15b of the support plate 5 and the swing arm 20
When a gap of about several mm is generated between the lower surface of the base and the maintenance worker, the maintenance worker first manually rotates the four swing arms 20 to the positions indicated by phantom lines in FIG. Adjust the length of the receiving arm 23. In this case, since the lower surface of the swing arm 20 does not slide on the upper surface 15b of the support plate 5, the swing arm 20 can be smoothly rotated. Next, when the opening / closing angle of the swing arm 20 and the length of the vehicle body receiving arm 23 are adjusted, the support plate cylinder 3 is driven again to extend the operating rod 5 thereof. When the inspection and maintenance of the vehicle at the required location is completed, the operating rod 5 is contracted at a desired position, and the swing arm 20 is retracted.
After returning to the horizontal state, the operating rod 5 is contracted to the initial state. As a result, the swing arm 20 and the support plate 5
It is substantially housed in the pit 1 and is in the state shown in FIG.

[0027]

First, in the first embodiment described in the embodiment of the invention, the side wall (skirt) 16 is made as short as possible in order to reduce the weight of the upper board 7, and the upper board 7 is stored when the support plate is stored. Although the lower end surface of the side wall 16 is supported on the upper surface 8a of the stopper 8 in the pit 1, the stopper 8 is not always a specific requirement of the present invention. That is, the stopper 8 may be stopped and the lower end surface of the side wall 16 of the upper board 7 may be lengthened so as to directly contact the bottom surface 1 a of the pit 1.

Further, in the first embodiment, it is possible to add various other components. For example, in order to prevent the upper board 7 and the lower board 6 from sliding with each other, a rubber sheet is attached to the lower surface 15a of the inner wall of the upper board 7 or the upper surface 10b of the lower plate supporting portion 10 of the lower board 6. May be. Similarly, in order to prevent the upper board 7 and the lower board 6 from sliding with each other, the outer facing side wall 1 of the upper board 7
A through hole may be formed in 6a or the like, and a fixing pin may be inserted into the through hole.

In order to further reduce the weight of the upper board 7, the front and rear end faces of the upper board 7 may be formed into channel steel shapes. However, none of these ideas is a specific requirement of the present invention in relation to the purpose of the present invention.

Hereinafter, another embodiment of the present invention will be described in this section. In the description of the other embodiments, the same parts as those of the first embodiment of the present invention will be denoted by the same reference numerals, and redundant description will be omitted.

Next, FIGS. 8 to 14 show a second embodiment including the essential components of the first embodiment as they are. In the second embodiment, X1 is a lift device, 6A is a lower board, 7A is an upper board, 11A is an arm support, 17A
Denotes a fitting notch, and 20A denotes a swing arm or the like.

The second embodiment differs from the first embodiment mainly in the following points. First, an arm support portion 11 protrudingly formed on the lower board 6A.
A, at least the upper plate contact portion 1 of the upper board 7A
Raising plate (part) 35 having a thickness corresponding to the thickness of 5A
Is fixed (welded, fixed). In this case, the raising plate 35 has a function of a bracket, so to speak. Therefore, if a required thickness can be given to the pivotally attached portion of the swing arm 20A of the arm support 11A,
The same is true even if a wide projection is formed on the upper surface of the arm support portion 11A, or a raising bracket is interposed between the upper surface of the arm support portion 11A and the swing arm 20A. . Next, the swing arm 20A is detachably attached (detachable) to the lower board 6A via a pivot 22A which is attached to the base end of the swing arm in a protruding state and a shaft hole 12A which is formed in a penetrating state in the raising plate 35 and the like. That is. In this case, the pivot 22
A is desirably fixedly attached to the base end of the swing arm 20A. Thus, even when the support plate 5A is housed in the pit 1A, the swing arm 20A is indirectly connected to the arm support 11A by simply inserting the pivot 22A into the shaft hole 12A of the raising plate 35. Supported by
On the other hand, when the support plate 5A rises from the pit 1A and the user wants to remove the swing arm 20A,
If the swing arm 20A is lifted as it is, it can be easily removed from the arm support 11A. Next, in order to prevent sliding between the lower board 6A and the upper board 7A, a slip preventing sheet (for example, a rubber plate) 37 is attached to the lower surface 15a of the inner wall of the upper plate contact portion 15A of the upper board 7A. is there. The slip prevention sheet 37 may be attached to the upper surface of the lower plate supporting portion 10A of the lower board 6A as described above. Next, a rattling preventing means for preventing the upper board 7A from rattling with respect to the lower board 6A is provided. That is, reference numeral 40 denotes a backlash-preventing fixing pin. The fixing pin 40 is a through-hole 41 for insertion formed at an appropriate portion of the side wall 16A (for example, the outer facing side wall 16a) of the upper board 7A and supports the lower plate of the lower board 6A. It is arbitrarily inserted into the receiving hole 42 formed in the portion 10A. In this case, if it is possible to prevent rattling of the upper board 7A, it is not always necessary to form the receiving hole 42 in the lower plate supporting portion 10A of the lower board 6A. For example, although the work is troublesome, the insertion end of the play prevention fixing pin 40 inserted into the insertion through-hole 41 is connected to the lower plate support 10.
A may be made to contact the lower surface 10a of A.

In the above configuration, when the lift device X1 is not used, the four swing arms 20A are opened linearly at the positions indicated by solid lines in FIG. In this case, as shown in FIG. 9, the lower surface 10 of the lower board support portion 10A of the lower board 6A.
a contacts the bottom surface 1a of the pit 1A, while
0b is located on substantially the same plane as the upper surface 8a of the rod-shaped stopper 8A. The lower end surface of the opposing side wall 16A of the upper board 7A rides on the upper surface 8a of the stopper member 8A, and the upper surface 15b of the upper plate contact portion 15A is located on substantially the same plane as the floor surface F in the first embodiment. Is the same as Also, the swing arm 20A is placed via the raising plate 35, and is substantially housed in the pit 1 along the outer side wall 16a of the upper board 7A, similarly to the first embodiment.

When the support plate 5A is raised when the lift device X1 is used, the operation mode is the same as that of the first embodiment, and the state is changed from the state shown in FIG. 12 to the state shown in FIG. Therefore, the maintenance worker manually sets each of the four swing arms 20A manually as shown in FIG. 14, and then lifts the maintenance vehicle to a desired height.

FIGS. 15 to 20 show a third embodiment in which the components of the main parts of the first embodiment are partially redesigned.
In this third embodiment, X2 is a lifting device, 6B is a lower board, 7B is an upper board, 8B is a stopper, 11B.
B is an arm supporting portion and the like.

The third embodiment differs from the first embodiment mainly in the following points. (B) First, the outer facing side wall 16a, which is one of the side walls of the upper board 7B, is not formed with a fitting cutout portion into which the arm supporting portion 11B is loosely fitted. Instead of the fitting notch as in the first embodiment, a fitting notch 50 into which the outer facing side wall 16a enters is formed inside. Thus, the arm support 11B
Is the outer wall 10c of the lower board 6B as shown in FIG.
Connecting plate portion 5 extending in a horizontal plate shape outward from the lower portion of the central portion of
1 and a support portion 52, which is continuously connected upward in a block shape from the continuous plate portion 51 and whose upper surface is substantially flush with the upper surface 10b of the lower board 6B, and an inner wall surface of the support portion 52. The above-described fitting notch 50 is provided between the lower board 6B and the outer wall 10c. Note that a pair of shaft holes 12 are formed in the protruding support portion 52 of the arm support portion 11B. (B) Next, the pair of bar-shaped stoppers 8B, 8B disposed in the pit 1B is longer in height than the lower board 6B. Therefore, as shown in FIG. 19, when the lift device X2 is not used, the lower board 6B positioned with respect to the bottom surface 1a of the pit 1B is at a position lower than the upper surface 8a of the rod-shaped stopper 8B, and the upper board 7B is rod-shaped. Pit 1B while riding on top surface 8a of stopper 8B
And the outer facing side wall 16a
Faces so that it can be inserted into the fitting notch 50 of the lower board 6B. Therefore, when the support plate 5B is stored in the pit, the fitting notch 50 is in a “carappo” state, and the central portion of the outer facing side wall 16a is located directly above the fitting notch 50. .

The differences from the third embodiment are as described above, and the basic structure of the other main parts is the same as that of the first embodiment. That is, the support plate 5B moves up and down by the driving force of the support plate driving means 3 below the floor surface F. Further, the swing arm 20 is provided horizontally on the protruding support portion 52 of the arm support portion 11B along the outer wall of the support plate 5B. Further, when the lift device X2 is not used, as shown in FIG. 19, the lower board 6B positioned with respect to the bottom surface 1a of the pit 1B, and the inner space 31 with respect to the upper surface of the lower plate support portion 10 of the lower board 6B. Each of the upper board 7B having the upper plate contact portion 15 and the swing arm 20 horizontally supported by the projecting support portion 52 of the arm support portion 11B is housed in the pit 1B.

Accordingly, in the above configuration, when the lift device X2 is used, the lower board 6B first fits into the internal space 31 of the upper board 7B and then contacts the lower surface of the inner wall of the upper board 7B. At this time, unlike the first embodiment, the outer facing side wall 16a of the upper board 7B enters the fitting notch 50 of the arm support portion 11B of the lower board 6B in a loosely fitted state. As a result, the swing arm 20 is
B reaches the upper surface 15b of the upper plate contact portion 15 so that it can be put on the upper plate contact portion 15.

In this embodiment, the upper board 7
By lengthening the side wall (skirt portion) of B, the stopper 8B for the upper board 7B can be omitted.

[0040]

As apparent from the above description, the present invention has the following effects. (1) When the lift device is not used, the vehicle cradle (especially the swing arm) does not hinder the taking in and out of the vehicle and maintenance work. (2) When a chassis type vehicle is set on a swing arm or the like, an actuator (a hydraulic cylinder or a hydraulic cylinder or the like) of the lift device main body can be used without using a lifting / lowering drive means (a drive cylinder, a manual crank mechanism, etc.) dedicated to the swing arm. By using the driving force of the driving link, the swing arm can be automatically raised horizontally to a position above the upper board. Therefore, improvement of work efficiency,
The structure can be simplified, the cost can be reduced, and the like. (3) When a chassis type vehicle is supported by a swing arm, the load of the vehicle applied to the swing arm is received by an upper board as a support plate, so that the support rigidity of the swing arm can be increased. (4) The invention according to claim 2 can reduce the weight of the upper board and prevent the upper board from tilting even if the inner wall bottom surface of the pit is slightly tilted when the support plate is stored. Can be.

[Brief description of the drawings]

FIGS. 1 to 7 are explanatory views showing a first embodiment of the present invention, FIGS. 8 to 14 are explanatory views of a second embodiment in which main parts of the first embodiment are shared, and FIGS. Is a third embodiment in which the components of the main part of the first embodiment are partially redesigned.

FIG. 1 is an explanatory view from a plane showing an example (first example) of an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a vertical section of a floor surface and a horizontal view from inside a pit.

FIG. 3 is an explanatory view showing a cross section of a main part (a pivot member) in FIG. 2;

FIG. 4 is an exploded perspective view (a part of the upper board is notched).

FIG. 5 is an explanatory diagram of a state in which a lower board is lowered most in a pit.

FIG. 6 is an explanatory diagram of a state in which the lower board has started to ascend toward the upper board in FIG. 5;

FIG. 7 is an explanatory diagram of a state in which a lower board has risen from inside a pit.

FIG. 8 is a plan view illustrating a second embodiment of the present invention.

FIG. 9 is an explanatory view similar to FIG. 2;

FIG. 10 is an exploded perspective view similar to FIG. 4;

FIG. 11 is a schematic explanatory view from a perspective view when the lift device is not used.

FIG. 12 is a schematic explanatory view showing a positional relationship of a main part in FIG. 11;

FIG. 13 is a schematic explanatory view of a state in which a support plate has risen from the state of FIG. 12;

FIG. 14 is a perspective view showing an example of a use state.

FIG. 15 is a plan view illustrating a third embodiment of the present invention.

FIG. 16 is an explanatory view similar to FIG. 2;

FIG. 17 is an exploded perspective view similar to FIG. 4;

FIG. 18 is an explanatory perspective view showing a part of a configuration requirement of a main part.

FIG. 19 is a schematic explanatory view showing a positional relationship of a main part when stored in a pit.

FIG. 20 is a schematic explanatory view of a state in which a support plate has risen from the state of FIG. 19;

[Explanation of symbols]

X, X1, X2: lift device, F: floor surface, 1, 1A, 1
B: pit, 1a: bottom, 3: cylinder for support plate, 4 ...
Operating rod, 5, 5B: support plate, 6, 6A, 6B: lower board, 7, 7A, 7B: upper board, 8, 8A, 8B ...
Stopper, 10, 10A: Lower plate support, 11, 11
A, 11B: arm support portion, 15, 15A: upper plate contact portion, 16, 16A: side wall, 16a: outer facing side wall, 1
7, 17A, 50: fitting notch, 20, 20A: swing arm, 21: pivot member, 22, 22A: pivot, 23
... Car body receiving arm, 24 ... Payment, 25 ... Spring member, 30
... downward recess, 31 ... internal space, 35 ... raising plate (part), 37 ... anti-slip member, 40 ... rattling prevention fixing pin, 41 ... insertion through hole, 51 ... continuous plate part, 52 ... support part .

Claims (7)

[Claims] 1. A support plate, which moves up and down by a driving force of a support plate driving means below the floor, and a swing arm horizontally provided on the support plate along an outer wall of the support plate, is formed on the floor. In a lift device for an automobile substantially stored in a pit, the support plate includes a lower board positioned with respect to a bottom surface of the pit when the lift device is not used, and a lower plate supporting the lower board. An upper board having an internal space with respect to the upper surface of the upper board, and an upper board abutting portion located on the upper board. The lower board has an arm supporting portion projecting from a side wall of the upper board. The swing arm is pivotally supported by the support portion, while the swing arm is used when the lower board is inserted into the internal space of the upper board and contacts the wall surface of the upper board when the lift device is used. Can be put on the plate contact part A lift device for an automobile, wherein the lift device reaches the upper surface of the upper plate contact portion. 2. A stopper according to claim 1, wherein a plurality of stoppers are provided in the pit, and a side wall of the upper board is supported by the stopper when the support plate and the swing arm are stored in the pit. It is characterized by. 3. The swing arm 20 according to claim 1, wherein a base end of the swing arm 20 is pivotally supported via a pivotal support member 21 provided on an upper surface of the arm support portion 11 of the lower board 6. An automobile lift device characterized by the above-mentioned. 4. The swing arm according to claim 1,
A downward recess 30 is formed at the base end of the swing arm 20.
A lift device for an automobile, characterized in that a spring member 25 that slightly floats with reference to b is fitted. 5. A support plate 5 which moves up and down by a driving force of a support plate driving means 3 under a floor F, and a swing arm 2 provided on the support plate 5 in a horizontal state along an outer wall of the support plate 5.
In a lift device for automobiles, in which 0 is substantially accommodated in a pit 1 formed on a floor F, the support plate 5 is positioned with respect to the bottom surface 1a of the pit 1 when the lift device X is not used. The lower board 6 and a lower plate supporting portion 10 of the lower board 6
The upper board 7 has an inner space 31 with respect to the upper surface of the upper board 7 and the upper board 7 is located on the lower board 6. The lower board 6 has an arm supporting portion 11 protruding from a side wall 16 of the upper board 7. On the other hand, the side wall 16 is formed with a notch 17 into which the arm support 11 is loosely fitted, and the swing arm 20 is pivotally supported on the arm support 11 via a pivot 22. On the other hand, when the lift device X is used, the lower board 6 comes into contact with the lower surface of the inner wall of the upper board 7 after being fitted into the internal space 31 of the upper board 7, and at this time, the inside of the fitting notch 17 of the upper board 7 The arm support 11 of the lower board 6 is loosely fitted on the upper board 7, and the swing arm 20 is mounted on the upper surface 15 b of the upper board contact 15 so that the swing arm 20 can be put on the upper board contact 15 of the upper board 7. Automotive lift characterized by Location. 6. A support plate 5B that moves up and down by the driving force of the support plate driving means 3 below the floor F, and a swing arm 20 provided on the support plate 5B horizontally along the outer wall of the support plate 5B. And the support plate 5B is substantially housed in a pit 1B formed on the floor F.
Is the bottom surface 1 of the pit 1B when the lift device X2 is not used.
and an upper board 7B having an internal space 31 with respect to the upper surface of the lower board supporting portion 10 of the lower board 6B and the upper board abutting portion 15 being located relative to the lower board 6B. The lower board 6B is formed with an arm support portion 11B having a fitting notch 50 that projects from the side wall 16 of the upper board 7B and into which the outer facing side wall 16a of the upper board 7B can enter. This arm support 11B
The swing arm 20 is pivotally supported on the
When the lower board 6B is used, the lower board 6B is inserted into the internal space 31 of the upper board 7B, and then contacts the lower surface of the inner wall of the upper board 7B, and the fitting cutout 50 of the arm supporting section 11B is used.
The outer facing side wall 16a of the upper board 7B enters into the inside, and the swing arm 20 is attached to the upper board contact portion 1 of the upper board 7B.
A lift device for an automobile, wherein the lift device reaches an upper surface (15b) of the upper plate contact portion (15) so that the device can be put on the vehicle. 7. The upper board 7B according to claim 6, wherein a plurality of stoppers 8B are provided in the pit 1B, and when the support plate 5B and the swing arm 20 are stored in the pit.
The lift device for a motor vehicle, characterized in that the side wall 16 is supported by a stopper 8B.