KR20030074091A - Lift for vehicle repair - Google Patents

Abstract

An object of the present invention is to provide a release means that does not interfere with the operation even if the range of releasing the swing arm movement is increased in a mechanism for restraining a swing arm movement having an automatic release means. A gear 6 fixedly mounted to the proximal end of the swing arm 3 coaxially with the pivot mounting axis 4 of the swing arm 3 between the carriage 2 and the swing arm 3; And a swing arm motion restraint mechanism A composed of a combination with a locking ring 7 provided on the carriage 2, and the swing arm motion restraint mechanism A is formed between the support post 1 and the carriage 2, respectively. , Swing arm motion restraining means (B) composed of a guide rail (8) arranged along the support (1) and a release lever (9) to which the guide roller (9a) mounted at the tip of the guide rail (8) is pressed. ).

Description

Lift for vehicle repair

The present invention relates to a vehicle maintenance lift having a horizontal rotation freely pivoted with respect to a carriage in which a swing arm having a vehicle support at its tip is elevated along a support, and more particularly, to a swing arm motion restraint mechanism of the swing arm. will be.

(Conventional technology)

This kind of vehicle maintenance lift having a swing arm can cope with various vehicles by adjusting the angle of the swing arm.

To lift the vehicle, first lower the swing arm to the lower limit, raise the vehicle to span the swing arm, then adjust the angle of the vehicle to the angle just below the lift point, and then move the carriage The vehicle is raised until just before contact with the vehicle, where the vehicle pedestal is surely aligned with the lift point, and the carriage is finally raised until the vehicle is at a predetermined height.

The swing arm restrains the motion so as not to rotate unsteadily at the time of lift lift. However, when the angle is adjusted depending on the vehicle model, the swing arm needs to release the restraint of motion to freely rotate the swing arm.

Therefore, in most models, the workability was bad because it was necessary to simultaneously perform the operation to adjust the swing angle and the arm to release the swing to operate the swing arm in an unstable position to sit down and look under the vehicle.

So, conventionally, for example, as described in Japanese Patent Application Laid-Open No. 53-33178, a coupling member having an arc-shaped coupling portion fixedly mounted to a swing arm with a coupling mechanism as a swing arm motion restraint mechanism around a pivot, At the position where the carriage is engaged with the coupling member, the locking member is provided with a resilient downward force so as to be lifted up and down. When the carriage descends to a predetermined height, the lower end of the driving pin hung from the locking member is mounted on the stand. As a force for contacting and pushing up, the lift for vehicle maintenance, in which the engaging member is disengaged from the engaging member and the engaging member is automatically released, or, as described in Japanese Patent Application Laid-Open No. 7-86080, A locking rod pivotally mounted to the locking mechanism, and a pair of locking flaps penetrated loosely through the locking rod and inclined in opposite directions to each other. If the carriage is lowered to a predetermined height, the lock release plate protruding from the base is sandwiched between the locking plates, and the vehicle maintenance lift which automatically releases the locking mechanism by pushing the locking plate apart from the applied force, It is proposed.

Although the workability is improved by automatically releasing the swing arm motion restraint mechanism, the electronic vehicle maintenance lift makes the drive pin protruding below the carriage as short as possible so as not to interfere with the lift.

However, when the drive pin is shortened, the swing arm motion restraint function is limited to a range in which the swing arm is slightly raised from the lower limit, and the swing arm is so low that it is difficult to accurately position the vehicle pedestal directly under the lift point.

In addition, the latter vehicle maintenance lift needs to be considered so that the sharp end of the release plate does not protrude greatly between the locking plates when the carriage is lowered to the lowest position. The function of the swing arm is limited to the range slightly raised from the lower limit, and it is difficult to adjust the swing arm angle, so that the swing arm can be repeatedly set many times.

This problem is caused by the fact that any swing arm motion restriction release means is provided with mutually providing the carriage (swing arm) and the floor.

The present invention relates to a vehicle maintenance lift that is not limited to the operating range of unlocking, the configuration of which includes: a vehicle that is freely pivotally mounted horizontally with respect to a carriage in which a swing arm having a vehicle support at its tip is elevated along a support post; In the cost lift, a swing arm motion restraint mechanism is provided between the carriage and the swing arm, and a swing arm motion restraint release means for releasing the swing arm motion restraint mechanism is provided between the carriage and the support.

The swing arm motion restraint mechanism is constituted by a combination of a lock gear fixed to the base of the swing arm coaxially with the pivot mounting axis of the swing arm, and a lock catch ring provided on the carriage. And an actuating member fixedly mounted to the support and an actuating member provided in the carriage and operated in contact with the actuating member according to the height of the carriage, or the actuating member being a guide rail disposed along the support. Together, the actuated member can be a release lever whose tip is pressed against the guide rail.

In addition, when the said operation member is set as the guide rail arrange | positioned along the support | pillar, it is preferable to be able to adjust the height of the upper end part in the guide rail.

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing which shows the whole of the vehicle maintenance lift which concerns on this invention.

2 is an explanatory diagram of a swing arm motion restraint mechanism and a swing arm motion restraint release means;

3 is an explanatory diagram of a swing arm motion restriction release means;

4 is an explanatory diagram showing a release operation of a swing arm motion restraint mechanism;

5 is an explanatory diagram showing a modification of the swing arm motion restriction release means;

6 is an explanatory diagram showing a modification of the release operation in the swing arm motion restraint mechanism;

7 is an explanatory diagram showing another modification of the swing arm motion restriction release means.

(Explanation of symbols for the main parts of the drawing)

1: holding 2: carriage

2a: main body (carriage) 3: swing arm

4: pivot mounting shaft 5: vehicle stand

6: gear 7: hook

7a: guide block 7b: contact plate

7c: spring 8: guide rail

9: release lever 9a: guide roller

9b: cam bracket 9c: torsion spring

9d: camshaft 10: cam

11: spring 12: lowered rod

13: toggle link A: swing arm motion restraint mechanism

B: swing arm motion restraint means

EMBODIMENT OF THE INVENTION The Example of the vehicle maintenance lift which concerns on this invention is described based on drawing.

Fig. 1 shows the entire vehicle maintenance lift. The carriages 2 are assembled freely in a pair of left and right support posts 1 and 2 along the support posts 1, respectively. In the protruding portion, the swing arm 3 is pivotally mounted with its base end freely rotated by the pivot mounting shaft 4.

The carriage 2 is configured to be moved up and down by a hydraulic cylinder (not shown) assembled in the support 1, and the swing arm 3 is freely stretchable by a double cylinder structure, and the vehicle is at the tip end. Pedestal 5 is provided.

On the pivot mounting portion of the swing arm 3, as shown in FIG. 2, the swing arm motion restraint mechanism A which prevents rotation of the swing arm 3 between the swing arm 3 and the carriage 2 is mutually prevented. The swing arm motion restraint mechanism (A) is coaxial with the pivot mounting shaft (4) and is provided on the gear (6) fixed to the swing arm (3) and the carriage (2). It consists of a latching ring 7 which meshes with the gear 6.

The gear 6 has an arc shape to cover the rotational movement angle of the swing arm 3, while the locking ring 7 is pivotally mounted by a guide block 7a fixed to the carriage 2. Retreat is guided freely towards 4).

The hook 7 has a gear that meshes with the gear 6 at its front end, and is a spring 7c interposed between the contact plate 7b mounted at the rear end and the guide block 7a. The force is applied in the direction away from the gear 6.

Moreover, the swing arm motion restriction release means B as shown in FIG. 2 and FIG. 3 is provided between the support | pillar 1 and the carriage 2, The swing arm motion restriction release means B is, It consists of the guide rail 8 as an actuating member fixedly attached to the support | pillar 1, and the release lever 9 which is a to-be-operated member by which the tip was pressed by the guide rail 8.

The guide rail 8 is fixed to be mounted on the side of the support 1 and has a contact surface with the guide roller 9a mounted at the tip of the release lever 9, and the contact surface at the upper end of the guide roller 9a. ) Is an inclined surface that is slowly retracted so that it can be shifted to the side of the carriage 2 main body portion 2a.

As described above, the release lever 9 is attached with a guide roller 9a at its tip, and is supported by a cam bracket 9b attached to the carriage 2 at its proximal end, and within the cam bracket 9b. One end side of the cam shaft 9d to which rotational force is applied in the direction in which the guide roller 9a is pressed by the guide rail 8 by the assembled torsion spring 9c is fixedly mounted.

On the other end side of the camshaft 9d, a cam 10 of a shape having a certain plane is fixedly mounted on the outer periphery of the disc, and the cam 10 is in a position where the cam surface is pressed against the contact plate 7b. have.

In the cam 10, in the state where the guide roller 9a is in contact with the guide rail 8, the flat portion of the cam surface abuts on the contact plate 7b, and the catch ring 7 is geared by a spring force. It is assembled so that it may become a relationship returned to the direction separated from (6).

When the lift for vehicle maintenance formed in this way is lifted to the height in which the carriage 2 is not equipped with the guide roller, the guide roller 9a attached to the tip of the release lever 9 is a torsion spring ( With the force of 9c), the side of the main body portion 2a of the carriage 2 is in contact with the release lever 19, as shown in Figs. 3 (a) and 4 (a). The contact plate 7b is pressed against the circumferential surface portion of the cam 10, the locking ring 7 is extruded toward the gear 6 side, and the swing arm 3 is kept in a state in which rotational motion is constrained. .

In this restrained state, since the locking ring moves in the horizontal direction and the gear is engaged, the operation is sure and reliable.

When the swing arm operation moves and lowers the carriage 2 in a restrained state, at a predetermined height, the guide roller 9a reaches the inclined portion of the guide rail 8, and then the guide roller 9a is It is gradually pushed back against the force of the torsion spring 9c, and the release lever 9 has a flat portion of the cam 10 as shown in FIGS. 3 (b) and 4 (b). It becomes parallel with the plate surface of 7b), the locking latch 7 is returned, and the swing arm 3 is released from restraint, and operation is possible.

In this way, when the carriage is lowered to a predetermined height, the restraint of the swing arm is automatically released, and in particular, the swing arm motion restraint release means is provided with an operating member fixedly mounted to the prop and the carriage according to the height of the carriage. By constructing the actuated member operated in contact with the actuating member, the actuating member and the actuating member can be unitized to develop various changes.

Furthermore, since the swing arm motion restraint release means is provided between the carriage and the shore, and the guide rail as the actuating member is arranged to be mounted on the shore, the guide rail is elongated to extend the range of restraining the swing arm motion. Even if it does not interfere, it is easy to improve the workability by expanding the swing arm motion restraint region.

When the guide rail as the operating member is adjustable so that the height of the tip portion is changed so that the height at which the restraint of the swing arm movement is released can be changed, the vehicle height can cope efficiently with different vehicle types.

In the above embodiment, the case where the combination of the gear and the locking ring is employed in the swing arm motion restraint mechanism is described. However, the swing arm motion restraint mechanism may be changed to a mechanism employed in the existing vehicle maintenance lift. .

The swing arm motion restraining release means is not limited to the release lever that uses the cam in combination. For example, as shown in FIGS. 5 and 6, a lowering rod added by the spring 11 ( 12) by using together with the toggle link 13, the locking ring 7 is pushed out or turned back, or as shown in Figure 7, the locking ring 7 itself is directly operated by the guide rail (8) In contrast to the above embodiment, the swing arm motion restraint mechanism is operated by the guide rail 8 so that the guide roller 9a is released from the guide rail 8 or from the convex portion of the guide rail. When moved to the concave portion, the swing arm motion restraint mechanism may be configured to release the swing arm motion restraint mechanism.

In addition, even if the operating member is not provided continuously over the entire area for releasing the swing arm motion restraint mechanism like the guide rail, for example, a projection is provided at one place of the support, and the carriage can pass through the projection. It is also possible to use a mechanical switch for alternately switching the operation of the swing arm motion restraint mechanism by raising or lowering the arm each time.

In addition, the swing arm motion restraining means preferably operates between the height of the carriage at the lowest position and the movement of the vehicle restraint just before the lift point of the vehicle. Even if there is a request to operate, it can simply respond.

According to the present invention, since the swing arm motion restraining release means is provided between the support post and the carriage, there is no obstructing member between the carriage and the floor, and the worker is injured by a part or the like protruding from the carriage. There will be no, and widening the release area of the mechanism that restrains the swing arm movement will not be hindered.

In addition, when the vehicle support provided at the tip of the swing arm is aligned with the lift point, the setting operation is eliminated because the operation to release the restraint of the swing arm and the angle adjustment operation of the swing arm are not necessary. This is facilitated.

When the swing arm motion restraint mechanism is constituted by a combination of a gear fixedly fixed to the base end of the swing arm coaxially with the pivot mounting axis of the swing arm, and a locking ring provided on the carriage, it is surely operated and high in reliability.

Further, if the swing arm motion restraining means is constituted by an actuating member fixedly mounted to the support and an actuating member provided on the carriage and operated in contact with the actuating member according to the height of the carriage, various changes can be developed. Can be.

In addition, when the actuating member is a guide rail disposed along the support post, and the actuating member is a release lever whose tip is pressed against the guide rail, the structure can be simplified and miniaturized. When the operating member is a guide rail arranged along the support, and the height of the upper end of the guide rail is adjustable, the height at which the restraint of the swing arm movement is released can be changed. It has an excellent effect on the response.

Claims (5)

In a vehicle maintenance lift in which a swing arm having a vehicle stand at its tip is pivotally mounted freely with respect to a carriage in which a swing arm moves up and down along a strut, And a swing arm motion restraint mechanism provided between the carriage and the swing arm, and a swing arm motion restraint release means for releasing the swing arm motion restraint mechanism between the carriage and the support post. The method of claim 1, The swing arm motion restraint mechanism is constituted by a combination of a gear fixedly mounted to the base end of the swing arm coaxially with the pivot mounting axis of the swing arm, and a hook provided on the carriage. . The method according to claim 1 or 2, The swing arm motion restraining release means is constituted by an actuating member fixedly mounted to a support and an actuating member provided in the carriage and operated in contact with the actuating member according to the height of the carriage. lift. The method of claim 3, wherein And an actuating member as a guide rail arranged along a support, and an actuating member as a release lever whose tip is pressed against the guide rail. The method of claim 3, wherein The operating member is a guide rail arranged along a support, and the height of the upper end part in the guide rail is adjustable, The lift for vehicle maintenance characterized by the above-mentioned.