JP3378908B2 - Vehicle maintenance lift - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle maintenance lift in which a vehicle support such as a plate and a beam is housed in a pit provided on the floor when the vehicle is lifted down.

[0002]

2. Description of the Related Art In a conventional vehicle maintenance lift, a pit is provided on the floor to improve work efficiency, and a vehicle support can be stored in the pit to prevent unevenness of the floor during lift-up and lift-down. It is considered to be removed as much as possible. This configuration is, for example ,
The technique described in Japanese Laid-Open Patent Publication No. 1-17596 is known. This is because a pit cover that can be squared manually is provided in the pit, and the pit is closed by the pit cover during lift-up or lift-down so that the top surface of the pit is at the same level as the surrounding floor surface. The pit cover can be opened without using the hands by using the lifting action of the lift.

[0003]

However, in the manual operation of opening and closing the lift cover as described above, the operation may be cumbersome and the work may be performed while the lift cover is open. Therefore, the cover for flattening has sufficient effect. Since it did not show its effect and the cover is provided so that it can be closed even when lifting up, there is an opening in the cover for inserting the cylinder that moves up and down, so that the pit is completely closed when lifting down. In addition to the pit cover, it required a lid to close the opening. Further, in order to reduce the work of opening and closing the lift cover, it is conceivable to operate the lift cover by using power, but the mechanism becomes complicated and unless the pit is deep enough to install power, the pit must be deepened. I won't. As a result, there is a problem that dust and water are more likely to collect in the pit, which makes cleaning and draining difficult.

SUMMARY OF THE INVENTION An object of the present invention is to provide a vehicle maintenance lift having a pit portion which is always flat with a simple structure without separately providing motive power and without bothering an operator.

[0005]

In order to solve the above-mentioned problems, the invention of claim 1 is a vehicle in which a vehicle support can be stored in a pit so that the upper surface of the vehicle support is at the same level as the floor when the vehicle is lifted down. In a maintenance lift, a pit cover is provided in the pit, and the pit cover can be tilted up and down freely .
With the stand up, the stopper provided on the bracket
The pedestal is supported by a fixed pedestal, and the pedestal is retracted by tilting the pedestal in conjunction with the downward movement of the vehicle support to retract the vehicle support and store the vehicle support, and the vehicle support is raised. It is configured to raise the pit cover to the same height as the floor surface by standing up in conjunction with and to close the upper surface of the pit.

According to a second aspect of the present invention, in the first aspect of the invention, the pedestal is tilted by pressing a member protruding from the back surface of the vehicle support, and is automatically returned to a standing posture by a spring force. Configured as possible.

According to a third aspect of the present invention, in the first or second aspect of the present invention, the pedestal is pivotally attached to the back surface of the pit cover.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a vehicle maintenance lift embodying the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view showing an example, and FIG.
3A and 3B are explanatory views of the pit cover of FIG. And FIG. 3 has shown the detail of the A section and B section of FIG. In FIG. 1, reference numeral 1 is a cylinder that is a lift main body that moves up and down in the vertical direction, and 2 is a plate that is installed above the cylinder 1 and on which a vehicle or the like is mounted and that also serves as a vehicle support. Reference numeral 3 denotes an embedded portion that houses the cylinder 1, and is provided with power for moving the cylinder 1 up and down. Further, 5 is a drainage channel for discharging the water accumulated in the pit, and 9 is a floor surface. Further, 4 is a pit having a size capable of accommodating the plate 2, and a pit cover 10 which moves up and down in the pit is provided at the opening of the pit 4.

As shown in FIG. 2, the pit cover 10 is a flat plate having a cylinder insertion hole 11 through which the cylinder 1 is inserted in the center, and six pedestals 13 are axially mounted on the back surface. As shown in FIG. 3, the pedestal 13 has an upper end pivotally attached to a bracket 20 fixed to the pit cover 10 so as to be able to move up and down, has a roller 12 at a lower end, and further has an upper end connected to a spring 15 connected to the bracket 20. Is attached. The spring 15 is contracted and installed, and the restoring force of the spring 15 always acts to return the pedestal 13 to the standing posture.
The upper surface of 0 is at the same level as the floor surface.

The tilting member 16 is attached to the pedestal 13 by the spring 1.
It is installed side by side on the opposite side of 5. The tilting member 16 is an L-shaped turning member whose upper end is pivotally attached to the bracket 20. The tilting member 16 tilts the pedestal 13 by turning counterclockwise in the drawing. Then, the link bar 14 is connected to the lower bent portion 19, all the tilting members 16 are connected to each other by a plurality of link bars 14, and all the pedestals 13 tilt simultaneously at the turning operation of any one position. It is like this. The link mechanism 7 is composed of the link rod 14 and the tilting member 16.

Of the tilting member 16, the pit cover 10 is attached to the shaft attachment portion 21 of the tilting member 16a of the pedestal 13a near the cylinder insertion hole 11 as shown in FIG. 3 (a).
A through hole 10a is formed in the through hole 10a, and an operating rod 22 having an uprighting unlocking hole 17 formed by projecting a bolt upward from the through hole 10a is provided in a protruding manner. This stand-up release plate 17,
When the plate 2 descends, the operating projection 18 (shown in FIG. 1) provided on the lower surface of the plate abuts and pushes in the tilting member 16a.
The pedestal 13a is tilted by rotating the. Reference numeral 20a is a stopper provided on the bracket 20 for fixing the pedestal 13 to the standing position.

Next, the operation of raising and lowering the pit cover will be described. First, the pedestal 13 is stretched by the spring 15,
In order to keep the standing state at all times, when the lift-up operation is performed, the pedestal 13 stands up, the pit cover 10 rises, and the pit cover 10 ascends without any special operation in conjunction with the lift-up operation. It is on the same level as the floor surface 9. Since the pedestal 13 is fixed by the stopper 20a and is stable in the standing position, the standing position is maintained without being unstable or sinking even when an operator or the like gets on it.

4A and 4B are operation explanatory views showing a state where the lift cover has started to descend. FIG. 4A is a side explanatory view and FIG.
An enlarged view of the portion is shown, and the case of lifting down based on this drawing will be described. The operating projection 18 provided on the plate 2 abuts the platen 17 during the liftdown, and the platen 17 is moved downward to tilt the tilting member. 16a is rotated. Then, the tip 16b of the tilting member 16a presses the pedestal 13a, and the pedestal 1
3a starts the tilting motion. Then, by the action of the link mechanism 7, the other tilting members 16 interlock with each other to start the pivoting motion all at once, and all the pedestals 13 tilt almost simultaneously. After that, the entire pit cover 10 is pressed against the plate 2 by the descending force of the descending operation of the lift, and in conjunction with the lifting operation, the pit cover 10 descends in the pit to perform a retracting operation. Thus
If the plate 2 is housed in the pit 4 and the lowering is stopped when the upper surface of the plate 2 reaches the same level as the floor surface 9, the pit portion becomes flat.

As described above, since the pit cover which moves up and down in association with the lifting and lowering of the lift is provided, there is no special operation other than the lifting and lowering operation of the lift, and the lifting and lowering operations are performed. Can make the pit surface the same level as the floor surface. Therefore, the operator does not need to open and close the pit. Further, since the pit cover is raised by using the restoring force of the spring and the pit cover is lowered by using the down action of the lift, new power is not required and the pit cover can be operated with a simple configuration.

Further, since the pit cover descends with the pedestal tilted, the pit is formed to a depth corresponding to the length of the pedestal, no extra depth is required, and the pit cover can be relatively shallow.
Even if water, etc. collects in the pit, it can be dealt with by simply using a conventional pit drainage means, for example, by forming a drainage channel at the bottom of the pit. Since it can be removed at the same time, it is easy to clean the inside of the pit, and it is also easy to maintain the pillars and the inside of the pit.

FIG. 5 is a view showing a second embodiment of the present invention, and is a side view of a pit portion which is a main portion. (A)
Is lifted up (slightly lifted up)
And (b) shows the time of the lift-down. In this embodiment, the pedestal 23 is pivotally attached to a bracket 26 provided on the pit bottom plate 30 so as to be able to move up and down, the upper end of the pedestal 23 has a roller 31, and the lower surface of the pit cover 32 can be smoothly moved. Has become.

The pedestals 23 are provided at four corners in the pit, and are formed so as to maintain the standing posture by the restoring force of the contraction spring 25 provided side by side, and the upper end thereof is formed by combining the link rods 24. They are linked by a mechanism and are designed to work together. Further, 28 is a standing-up release bar provided on the lower surface of the plate 33, which has an inclined surface at its tip and contacts the release pin 27 provided at the corresponding position of the link mechanism to horizontally move the release pin 27 to the right in the drawing. Then, the link mechanism is operated to tilt the pedestal 23. Further, 34 is a stopper for fixing the standing of the pedestal 23, and a bar insertion hole is provided at a contact position of the standing release bar 28 of the pit cover 32.

By doing so, the operation of the pit cover 32 due to the lifting and lowering of the lift is performed as in the above embodiment.
At the time of lift-up, the restoring force of the spring 25 interlocks to raise the pit cover 32, and at the time of lift-down, the upright release bar 28 moves the release pin 27 to the right in the drawing, so that the pedestal 23 tilts. After that, each pedestal is pressed against the plate 33 by the lowering of the lift to advance the tilt, and the pit cover 32 interlocks with the plate 33 and retracts. Therefore, the pit surface can be made flat even during the lift down. In this way, the pedestal may be provided on the pit side, which makes it possible to reduce the weight of the pit cover and facilitate the attachment / detachment operation.

Next, a third embodiment of the present invention will be described with reference to FIG.
Description will be made based on Nos. 7 and 8. This embodiment is a swing arm type lift, and the figure shows its pit portion.
Shows a lifted-up state, FIG. 7 shows a lift-down state or an intermediate state of lift-up, and FIG. 8 shows a completely lifted-down state. In the figure, the same members as those in FIG. 5 are designated by the same reference numerals, and 43 shown in FIG. 7 is a swing arm bracket, on which a swing arm (not shown) is pivotally mounted.

As shown in the figure, the structure of the bit 4 is the same as that of FIG. 5, and the pedestals 23 and the like are provided at the four corners in the pit and are linked by the link rods 24 so as to interlock. Then, the standing-up release bar 28 comes into contact with the release pin 27 provided at the corresponding position in the pit cover 32 to release the release pin 2.
The pedestal 23 is tilted by horizontally moving 7 to operate the link mechanism. In this way, even if the plate portion has a thickness, the pedestal 23 is tilted to retract the pit cover 32 downward.
Since it is sufficient for the lower part of the pit 4 to have a space in which the pillars 23 and the springs 25 are tilted, the pit surface can be at the same level as the floor surface without increasing the depth of the pit 4.

FIG. 9 shows the fourth embodiment, and shows a pit portion in which a swing arm is installed on a lift having a doll link. In this embodiment,
The swing arm is provided adjacent to the outer side of the plate of the doll lift, and the entire doll lift is housed in the pit, and only the swing arm housing is provided with a pit cover that moves up and down. The main body of the lift is omitted.

In FIG. 9, the same members as those in FIG. 5 are designated by the same reference numerals, 36 is a pit cover, 37 is a swing arm, 38 is a plate, 42 is a body side bracket, 43 is a swing arm bracket, 44 is a link rod, 46 is a pit bottom plate, and 47 is a cover. Also, 4
0 is a deviation prevention bar that prohibits left and right movement of the pit cover,
It is vertically provided on the lower surface of the pit cover 36, and its tip is inserted and held in an insertion hole 41 formed in the pit cover bottom plate 45.
The pit cover 36 is prevented from moving laterally due to the tilting or standing motion of No. 3 or the shaking when an operator gets on it. Thus, a pit cover that moves up and down may be provided in a part of the pit.

In the above-mentioned embodiment, the structure in which the plate on which the vehicle is placed and the swing arm are stored in the pit has been described, but the present invention is not limited to this, and the space between the plates is not limited to this. In the case of a lift having a beam, it can be applied including that beam, and can also be applied to other members. In addition, the shapes and configurations of the respective parts may be appropriately modified and embodied without departing from the spirit of the present invention.

[0024]

As described in detail above, according to the first aspect of the invention, the pit cover is operated by the lifting movement of the lift. Therefore, the pit portion is not only lifted down but also lifted up. It is possible to make it the same level as the floor surface, and the operator can flatten the pit surface without opening or closing the pit. Further, since the pit cover is mechanically supported and moved up and down by the pedestal that can be tilted up and down, no additional power is required and it is not necessary to make the pit deeper than the height of the pedestal. Therefore, it is easy to drain water from the pit.

According to the invention of claim 2, it is possible to realize a simple structure and to realize at low cost.

According to the third aspect of the present invention, the pit cover and the pedestal can be taken out at the same time, so that the inside of the pit can be easily cleaned.

[Brief description of drawings]

FIG. 1 is a side view showing an example of an embodiment of a vehicle maintenance lift according to the present invention.

FIG. 2 is a diagram showing details of the pit cover shown in FIG. 1, (a)
Is a plan view and (b) is a side view.

3 is a partially enlarged view of FIG. 2, (a) is an enlarged view of a portion A,
(B) is an enlarged view of part B.

4A and 4B are operation explanatory views of the pit cover shown in FIG. 2A is a side view and FIG. 4B is an enlarged view of a C portion.

FIG. 5 is a side view of a pit portion showing a second embodiment of the vehicle maintenance lift according to the present invention, (a) showing a lifted state and (b) showing a lifted down state. Shows.

FIG. 6 is a side view of a pit portion showing a third embodiment of the present invention, showing a case of a swing arm type lift during lift-up.

FIG. 7 is a side view showing how the pit cover starts to descend in the vehicle maintenance lift of FIG.

8 is a side explanatory view showing a state where the vehicle maintenance lift of FIG. 6 is lifted down.

FIG. 9 is an explanatory side view of a pit portion showing a fourth embodiment of the present invention.

[Explanation of symbols]

1 ... Cylinder, 2 ... Plate, 3 ... Lift embedding part, 4 ... Pit, 7 ... Link mechanism, 10 ... Pit cover, 12 ... Roller, 13, 13a ... Pillar, 14
..Link rods, 15..Springs, 16, 16a .. Tilt members, 17..Release stand, 18..Operating protrusions, 20 ..
Brackets, 22 ... Operating rods, 23 ... Columns, 24 ...
Link rod, 25 · · Spring, 26 · · Bracket, 27 ·
・ Release pin, 28 ・ ・ Standing release bar, 31 ・ ・ Roller,
32 ・ ・ pit cover, 33 ・ ・ plate, 36 ・ ・ pit cover.

Claims (3)

(57) [Claims] 1. A vehicle maintenance lift capable of storing a vehicle support in a pit so that its upper surface is at the same level as the floor surface when the vehicle is lifted down. A pit cover is provided in the pit, and the pit cover is provided. cause the cover to a cause倒自standing
In the upright state, it is fixed with the stopper provided on the bracket.
Supported by that pedestal, interlocking the pedestal, and is retracted pits cover downward by allowed to tilt in conjunction with the downward movement of the vehicle support stores the vehicle support, to increase the operation of the vehicle support A vehicle maintenance lift that raises the pit cover to the same height as the floor surface and blocks the top surface of the pit by standing up. 2. The pedestal can be tilted by a pressing operation of a member protruding from the back surface of the vehicle support, and can be automatically returned to the standing posture by a spring force.
The vehicle maintenance lift described in. 3. The vehicle maintenance lift according to claim 1, wherein the pedestal is pivotally attached to the back surface of the pit cover.