JP2005104657A - Lift for vehicle maintenance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wheel stopper of a lift for maintenance of a drive-on type vehicle capable of preventing a drop of the vehicle during the maintenance, or breakage by foreign matter or by the wheel stopper. <P>SOLUTION: A derrickable and turnable wheel stopping plate 3 which is capable of fixing a supporting part 1 on a vehicle loading table 2 by bolts 1b, and stopping the movement of a tire of a vehicle when the vehicle loading table 2 is elevated, an opening/closing plate 4 which is capable of supporting the wheel stopping plate 3 and independently derrickable and turnable, and a torsion spring 5 to constantly hold the opening/closing plate 4 in an erecting direction are pivotably supported to a supporting part 1 by a rotary supporting shaft 6. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a wheel stop device for preventing a vehicle from falling in a lift for vehicle maintenance such as a drive-on lift, which lifts the vehicle for inspection and maintenance of the vehicle.

Conventionally, for example, this type of lift device for a lift is well known, for example, in the configuration of Patent Document 1 or Patent Document 2. These wheel stoppers of Patent Literature 1 or Patent Literature 2 are attached to both longitudinal front and rear ends of a vehicle-mounted base on which a vehicle rides on a lift, and rotate downward by its own weight. The tire stopper rises when the vehicle mount rises and moves away from the floor, and when the vehicle mount is completely lowered, the tire stopper is level with the floor so that the vehicle can smoothly enter the vehicle.
This is effective for stopping the tire and preventing the vehicle from falling when the vehicle is moved up and down by a drive-on type lift and the vehicle moves for some reason and falls from the front-rear direction of the vehicle-mounted base.

Further, the wheel stopper device of Patent Document 3 works in the same way, but this wheel stopper device is for a floor-type lift in which the main body is placed on the floor, and the purpose is not flat and the water gradient. Even if they are different, there is no gap between the upper surface of the table and the stopper member of the tire, so that the boarding member does not flutter when the vehicle enters and leaves, but the table rises and the boarding side member When the is pivoted downward, the stopper member is forcibly interlocked and raised on the table. Further, when the table reaches the lowermost position and the riding-in member turns down, the stopper member is also forced down.
Japanese Patent Laid-Open No. 10-44945 Japanese Patent No. 3373393 Registered Utility Model No. 3024617

Each of the wheel stoppers described in Patent Document 1, Patent Document 2, and Patent Document 3 is an object (tool) between the vehicle-mounted base and the tire stopper while the tire is in contact with the wheel stopper. When the lift is lowered to the lowest position due to misplacement or the like, there is a risk of damaging the tire, damaging the misplaced object, the wheel stopper, or the lift body.
Further, even when the lift main body is installed lower or higher than the floor, when the lift is lowered to the lowest position as described above, there is a possibility that the wheel stopper or the lift main body may be damaged.

Therefore, in view of the above problems, the present invention is not limited to things that are sandwiched even if the vehicle mount is lowered to the lowest position while the wheel stopper for vehicle fall such as a drive-on type lift is sandwiched. An object of the present invention is to provide a vehicle maintenance lift that does not break the wheel stopper or the lift body, and does not damage the wheel stopper or the lift body even if the lift body is installed lower or higher than the floor. To do.

In order to solve the above-mentioned problems, the present invention provides a vehicle maintenance lift in which an on-vehicle stand provided with a wheel stopper for preventing a vehicle drop at the longitudinal end is moved up and down by a lifting device. The wheel stopper device is a wheel stopper plate that is pivotally supported so as to be able to turn up and down, a support member that supports the wheel stopper plate and can be turned up and down or moved up and down independently, and the support member is always held in the upright direction. Or a spring that holds upward, and the support member can be turned to the lying side against the spring force by the tip contacting the floor when the vehicle mount is in the lowest position, or It is in a downward direction, the ring retaining plate is forcibly erected in conjunction with the erection operation or push-up operation of the support member, and the erection operation is released by the overturning operation or the lowering operation of the support member. Do
According to this lift for vehicle maintenance, when the vehicle mount is in the raised position, the ring retaining plate is supported in a standing posture by the support member, so that the wheel stopper effect is exhibited, and when the vehicle mount is in the lowest position, Since the support force to the wheel stopper plate is released, the wheel stopper plate falls down and becomes horizontal, so that the car can smoothly enter the vehicle-mounted base. In addition, even if the vehicle mount is lowered to the lowest position with objects or tires sandwiched between the wheel stopper plate and the vehicle stopper raised, the support force for the wheel stopper plate is released, so the wheel stopper plate Only the dead weight of the wheel stopper plate is applied to the object and the tire sandwiched between them, and it does not become horizontal, and the object sandwiched is not damaged, and neither the wheel stopper device nor the lift body is damaged.

According to a second aspect of the present invention, in the first aspect of the invention, the support member is an opening / closing plate that is pivotally supported so as to be capable of swinging up and down independently, and the opening / closing plate is always subjected to a biasing force in a standing direction by a spring force. When the vehicle-mounted base is in the lowest position, the tip is brought into contact with the floor so that it can operate in a direction to release the supporting force against the spring stop plate against the spring force. .
According to this vehicle maintenance lift, the wheel stopper plate is forcibly raised by the opening / closing plate, and the vehicle can smoothly enter the vehicle mount when the vehicle mount is at the lowest position. In addition, even if the vehicle mount is raised and the vehicle mount is lowered to the lowest position with objects or tires sandwiched between the wheel stopper plates, the wheel stopper plates only hold objects or tires under their own weight and are forced to level. Therefore, the pinched object is not damaged, and neither the ring stopper device nor the lift body is damaged.

According to a third aspect of the present invention, in the first aspect of the present invention, the support member is a link and rod mechanism, and the link and rod mechanism acts so that the link and rod mechanism always expands by a spring force. When the rod is in the lowest position, the rod tip abuts against the floor, so that the rod contracts against the spring force and is operable in a direction to release the support force to the ring stopper plate.
According to this lift for vehicle maintenance, the wheel stopper plate is forcibly raised in conjunction with the extension operation of the link and rod mechanism, and when the vehicle mount is at the lowest position, the vehicle smoothly moves to the vehicle mount. I can get in. In addition, even if the vehicle mount is raised and the vehicle mount is lowered to the lowest position with objects or tires sandwiched between the wheel stopper plates, the wheel stopper plates only hold objects or tires under their own weight and are forced to level. Therefore, the pinched object is not damaged, and neither the ring stopper device nor the lift body is damaged.

According to a fourth aspect of the present invention, in the first or second aspect of the present invention, the ring stopper plate provided so as to be capable of swinging up and down, and an opening / closing plate that supports the ring stopper plate and can be rotated up and down independently. And a spring that always holds the open / close plate in the upright direction is supported on the same axis.
With this configuration, an inexpensive vehicle maintenance lift that is simple in structure and easy to maintain can be supplied.

The invention of claim 5 is characterized in that, in the invention of claim 1, 2 or 4, the open / close plate is curved or shaped like a square.
Due to this shape, even if the lift main body is installed slightly lower and higher than the floor, the opening and closing plate can be turned independently because it is bent or bent, and the opening or closing plate or A vehicle maintenance lift that does not damage the lift body can be provided.

A sixth aspect of the invention is characterized in that, in the first, second, fourth, or fifth aspect of the invention, the tip of the opening / closing plate has an R surface or a spherical shape.
This shape lowers the lift body smoothly and damages the opening / closing plate, the wheel stopper, or the lift body when the vehicle mount is lowered to the lowest position and the tip of the opening / closing plate comes into contact with the corner angle or the floor. It is possible to provide a vehicle maintenance lift with no

According to the vehicle maintenance lift of the present invention, even if the vehicle mount descends to the lowest position with an object or the like sandwiched between the wheel retaining plates, the wheel retaining plate is simply supported by the opening and closing plate, The object will not be damaged or damaged, nor will it damage the locking device or the lift body. Further, even if the lift body is installed lower or higher than the floor, the wheel stopper or the lift body is not damaged.

In addition, since the length of the opening / closing plate to the rear (long side) is the length that reaches the outer width of the corner angle of the pit, it does not impair the workability when the lift is raised, and the structure is simple and easy to maintain. A simple vehicle maintenance lift can be supplied. Furthermore, by making the tip of the opening / closing plate R-shaped or spherical, the opening / closing plate rotates smoothly, and the lift is smoothly lowered without damaging the floor or corner angle upper surface and without damaging the opening / closing plate. It does not damage the opening / closing plate or the locking device or the lift body.

Hereinafter, the implementation of the lift for vehicle maintenance concerning the present invention is explained based on a drawing.
FIG. 1 shows a vehicle maintenance lift A that drives a hydraulic device (not shown) installed in a pit P and moves up and down via an X link (not shown) or a direct hydraulic cylinder (not shown). One end in the longitudinal direction of the in-vehicle table 2 is shown. Reference numeral 1 denotes a support portion, to which a bearing portion 1a for supporting the rotation support shaft 6 is fixed, and is attached to the end of the in-vehicle table 2 by a bolt 1b. ing. Reference numeral 3 denotes a ring stop plate, which is substantially L-shaped. The upper part of the bearing part 3a is a tire stopper part 3c, and the lower part is a rotation stop part 3b. Moreover, the center part of the width direction of the said ring stop plate 3 is notched. Reference numeral 4 denotes an opening / closing plate, which is attached to the notch 3d in the center in the width direction of the ring stopper plate 3, and is provided with a receiving plate 4a in front (shorter side) than the bearing part 4b so as to support the wheel stopper plate 3. The rear (long side) tip has a rounded surface so that it can be smoothly lowered when it comes into contact with a corner angle or the floor. In addition, the rear (long side) length of the opening / closing plate is long enough to reach the corner angle outside width of the pit.

Reference numeral 5 denotes a torsion spring, one end of which abuts against a part of the support portion 1 and the other end abuts against the opening / closing plate 4, and is attached so that the opening / closing plate 4 always works in the standing direction by the urging force of the torsion spring 5. ing. Reference numeral 6 denotes a rotation support shaft, which aligns the bearing portion 3a of the ring stopper plate 3, the bearing portion 4b of the opening / closing plate 4, the torsion spring 5 and the bearing portion 1a of the support portion 1, and is inserted from the side so as to be freely rotatable. Both sides of the support portion 1 are attached by retaining rings 6a so as not to come off the support portion 1.

FIG. 3 shows a case where the vehicle-mounted base 2 is raised. When the vehicle mount 2 is raised, the open / close plate 4 that has been in a substantially horizontal state starts to stand up by the biasing force of the torsion spring 5, and at the same time, the ring stopper plate 3 starts to stand up. When the opening / closing plate 4 is completely separated from the corner angle 9, the opening / closing plate 4 is further erected by the biasing force of the torsion spring 5, and at the same time, the ring stopper plate 3 is also erected, and the wheel stopper plate 3 is supported by the rotation stopper 3b. Stand up until 1 hits.

  FIG. 4 shows a case where the vehicle-mounted base 2 is lowered. When the vehicle mount 2 is lowered and the tip of the opening / closing plate 4 comes into contact with the corner angle 9, the opening / closing plate 4 rotates to become horizontal, and the opening / closing plate 4 starts to rotate horizontally and is simultaneously supported by the opening / closing plate 4. The ring retaining plate 3 that has been started to rotate horizontally under its own weight. Furthermore, when the vehicle-mounted base 2 is lowered to the lower limit, the opening / closing plate 4 is supported completely horizontally, and the ring stopper plate 3 is also supported horizontally by its own weight, allowing the vehicle to pass through.

5, 6 and 7 show the effect of the present invention.
FIG. 5 illustrates the case where a foreign object 7 is sandwiched between the vehicle-mounted base 2 and the wheel stopper 3. When the vehicle mount 2 descends with the foreign matter 7 sandwiched between the ring stopper plate 3, the opening / closing plate 4 contacts the corner angle 9 and rotates in the horizontal direction. However, since the ring stopper plate 3 is simply supported by the opening / closing plate 4, even if the vehicle mount 2 is completely lowered to the lower limit and the opening / closing plate 4 becomes horizontal, the wheel stopper plate 3 holds the foreign matter 7 by its own weight. Therefore, the foreign matter 7 is not damaged, and the ring stopper device of the present invention is not damaged. The same function is performed when the tire is supported (while sandwiched).

  FIGS. 6 and 7 illustrate the installation state. When the central part of the opening / closing plate 4 is bent, if the pit construction or the lift is not installed as shown in FIGS. Even if there is a level difference between the table 2 and the floor 8, the lift can be installed without any troublesome alignment. Accordingly, the lift installation time can be shortened.

Note that the vehicle maintenance lift of the present invention may be provided with the opening / closing plate 4 on one side or both sides without providing the opening / closing plate 4 by notching the center portion of the ring stop plate 3. The spring may be a tension spring or a compression spring as long as the function is satisfactory in addition to the torsion spring. Further, the rotation support shaft 6 may not be a single shaft but may be a single shaft. The tip of the opening / closing plate may be chamfered as well as the R surface or spherical surface. Further, the release operation of the opening / closing plate may be canceled by lifting the rod and releasing the opening / closing plate through a link.

Note that the vehicle maintenance lift of the present invention may be provided with the opening / closing plate 4 on one side or both sides without providing the opening / closing plate 4 by notching the center portion of the ring stop plate 3. The spring may be a tension spring or a compression spring as long as the function is satisfactory in addition to the torsion spring. Further, the rotation support shaft 6 may not be a single shaft but may be a single shaft. The tip of the opening / closing plate may be chamfered as well as the R surface or spherical surface. Furthermore, the opening / closing plate may be changed from a plate shape to a rod-shaped object.

The vehicle maintenance lift of the present invention can be mounted even on a lift (floor type lift) in which the vehicle-mounted base is on the floor at the lowest limit. In that case, what is necessary is just to make the side which contact | abuts the corner angle 9 of the opening-and-closing plate 4 wide widely. And the torsion spring 5 is not necessary, and the force of the weight of the opening / closing plate 4 may be sufficient. Moreover, although the support part 1 is attached with the volt | bolt in this invention, of course, you may weld.

FIG. 8 illustrates another embodiment of the present invention, that is, claim 2. Reference numeral 11 denotes a link and rod mechanism. Reference numeral 12 denotes a push rod which protrudes above the center portion of the end of the in-vehicle stand 2 and the hole 13 provided near the bearing portion 1a of the support portion 1 so as to push up the ring stopper plate 3. Reference numeral 14 denotes a link, which is pivotally supported by a shaft 17 of a support plate 16 attached to the lower surface 15 of the vehicle-mounted base 2 at the center of the link 14. Reference numeral 18 denotes a floor rod that protrudes below a hole 20 provided in the reinforcing plate 19 of the vehicle-mounted base 2. Reference numeral 21 denotes a spring, which is located between the reinforcing plate 19 and the pin 22 provided on the floor rod 18 and is always attached so as to push down the floor rod 18 downward. Further, the floor rod 18 determines the protruding amount of the push rod 12 by the stop pin 23. The push rod 12 and the floor rod 18 are pivotally supported at both end portions of the link 14 so as to be rotatable.

Due to the above-described configuration, when the vehicle-mounted base 2 is at the lowest position, the floor rod 18 of the link & rod mechanism 11 abuts on the upper surface Q of the P in the pit, and the push rod 12 that has been projected so far by the contraction operation. Is retracted and the wheel stopper plate 3 is released from the standing operation, so that the upper surface of the vehicle mount 2 and the tire stopper portion 3a are parallel to each other, so that the vehicle can smoothly enter the vehicle mount 2. Further, when the vehicle mount 2 is raised, the floor rod 18 of the link & rod mechanism 11 extends downward by the force of the spring 21, and the push rod 12 protrudes to the upper portion of the vehicle mount 2 via the link 14. The wheel stopper plate 3 is pushed up to serve as a wheel stopper.

As shown in FIG. 9, the lift according to the present invention is formed so as to be long in the front-rear direction and provided in parallel with each other. However, the left and right lifts are integrally formed so that the in-vehicle stand is a single plate. May be formed. In this case, by providing a central work opening, vehicle maintenance can be easily performed from below in the same manner as a pair of parallel openings.
In addition, when a pair is provided in parallel, the left and right lifts may be linked and interlocked, but in that case, a pit for storing the beam is required and the configuration becomes complicated, so the hydraulic circuit A configuration in which (not shown) is interlocked is desirable.

1 is an overall view of a ring stopper device according to the present invention. The exploded view of the ring stopper device which is the present invention. Explanatory drawing when an in-vehicle stand rises. Explanatory drawing when an in-vehicle stand descends. Explanatory drawing when the foreign material has pinched | interposed into the wheel stopper at the time of the descent | fall of a vehicle mount. Explanatory drawing of the state where the installation of the lift is higher than the floor. Explanatory drawing of the state where the installation of the lift is lower than the floor. Explanatory drawing of the ring stopper of another Example. The top view of a drive-on type vehicle maintenance lift. Explanatory drawing at the time of a lift upper limit which is the conventional wheel stopper. Explanatory drawing at the lower limit of lift that is a conventional wheel stopper

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Support part 2 Car mount 3 Wheel stop plate 3b Anti-rotation part 3c Tire stopper part 4 Opening / closing plate 4a Support plate 4b Bearing part 5 Torsion spring 6 Rotation support shaft 7 Foreign object 8 Floor surface 9 Corner angle 11 Link & rod mechanism 12 Push rod 14 Link 18 Floor rod 21 Spring

Claims (6)

In a vehicle maintenance lift in which a vehicle-mounted base provided with a wheel stopper for preventing the vehicle from falling at the longitudinal end is moved up and down by a lifting device, the wheel stopper is supported by a wheel stopper plate that is pivotably supported by ups and downs. And a support member that supports the ring stopper plate and is assembled so as to be capable of swinging up and down independently, and in the support direction in which the ring stopper plate is raised by spring force or its own weight. By applying an urging force, the wheel stopper plate is forcibly raised in conjunction with the support member, and when the vehicle mount is in the lowest position, the tip contacts the floor, so that the support member A lift for vehicle maintenance characterized in that it is operable in a direction to release the supporting force against the wheel retaining plate against the urging force. The support member is an open / close plate that is pivotally supported so that it can rotate up and down independently, and the open / close plate always has a biasing force acting in a standing direction by a spring force. 2. The vehicle maintenance lift according to claim 1, wherein the lift is operable in a direction to release a supporting force against the wheel stopper plate against the spring force by abutting a tip with a floor. The support member is a link and rod mechanism, which acts so that the link and rod mechanism is always extended by a spring force, and when the vehicle mount is in the lowest position, the rod tip is on the floor. 2. The vehicle maintenance lift according to claim 1, wherein the lift for vehicle maintenance contracts against the spring force by being brought into contact, and is operable in a direction to release a supporting force with respect to the ring stopper plate. The ring stopper plate of the above-described ring stopper device provided so as to be able to turn up and down, the opening and closing plate that supports the wheel stopper plate and that rotates alone, and the spring that always holds the opening and closing plate in the upright direction are the same. The lift for vehicle maintenance according to claim 1 or 2, wherein the lift is supported by a shaft.   The lift for vehicle maintenance according to claim 1 or 2, wherein the opening / closing plate has a curved shape or a U-shape.   6. The lift for vehicle maintenance according to claim 1, 2, 4, 4 or 5, wherein the end of the opening / closing plate has an R surface or a spherical shape.