KR20080061221A - Vehicle repair lift - Google Patents

Abstract

An automotive lift is provided to enhance workability by evenly covering an opening surface of a pit at a maximum position of a vehicle support and eliminating the interrupt of a worker. An automotive lift(1) includes a lift unit(2). The lift unit is installed in a pit(30) concavely arranged on a bottom surface. The lift unit is composed of lower and upper lift units(4,6). The lower lift unit lifts a lift(3) arranged at an upper end. The upper lift unit is arranged on the lift of the lower lift unit and lifts a vehicle support(5) of an upper end. An opening surface of the pit is closed by descent behavior of the lift unit. A cover unit(23) covers an upper surface of the lift except for an operation part of the upper lift unit to close the opening surface in case of ascent of the lift unit.

Description

Vehicle repair lift {Vehicle repair lift}

BRIEF DESCRIPTION OF THE DRAWINGS Explanatory drawing of the vehicle maintenance lift in which the vehicle base is in an upper limit position, (A) which shows a side surface, and (B) shows a longitudinal section, respectively.

Fig. 2 is an explanatory view of a vehicle maintenance lift with the vehicle pedestal at a lower limit position, in which (A) is a side view and (B) is a longitudinal section, respectively.

3 is a perspective view of a vehicle maintenance lift with the vehicle pedestal in an upper position;

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

1: vehicle maintenance lift 2: lifting means

3: lifting platform 4: lower lifting mechanism

5: vehicle stand 6: lift mechanism

7: framework 8, 16, 17: X link

9: small link 15, 18: hydraulic cylinder

19: end gear 20: slide end

22: coaxial shaft 23: cover

24: slit 30: pit

31: receptacle

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle maintenance lift in which a vehicle pedestal moves up and down by lifting means provided in a pit recessed in a bottom surface.

(Background technology)

The vehicle maintenance lift causes the vehicle stand to move up and down by a lifting device composed of a driving device such as a hydraulic cylinder and an X-link mechanism that expands and contracts in the vertical direction by the driving device. For this purpose, it is frequently used to provide the elevating means in the pit concave on the bottom surface, so that at the time of lift lowering, the vehicle pedestal closes the opening surface of the pit so as to be flat with respect to the bottom surface. In such a vehicle maintenance lift, the present applicant does not stop at the time of the lift lowering, but the lower lifting mechanism which raises and lowers the cover plate of the upper end so that a pit may not be exposed even at the time of lift lift, and the lower The invention is provided on the cover plate of the elevating mechanism and formed of an upper elevating mechanism for elevating the vehicle stand provided at the upper end, and when the vehicle stand is raised, the cover plate is raised by the elevating mechanism to close the pit opening surface. Providing.

Patent Document 1: Japanese Patent Application Laid-Open No. 2005-22804

However, in the lift of Patent Literature 1, since the upper end of the cover plate is connected to a sliding end or a slide end such as an X-link forming an elevating mechanism, even if the cover plate closes the pit opening surface, The lower end portions such as the end of the X link, the slide end, the rail, and the like may protrude, which may interfere with work. In particular, in a type in which a pair of vehicle pedestals are provided on the left and right, and each vehicle pedestal is supported by X-links, respectively, in terms of cost, the coupling ends of both X-links are connected to each other by a coaxial shaft without tuning both X-links with a hydraulic mechanism. In some cases, the tuning shaft is also exposed on the cover plate, so that the effect of closing the pit by the cover plate is further reduced.

Accordingly, an object of the present invention is to provide a vehicle maintenance lift that can more effectively block the pit at the time of lift lift and further improve workability.

(Means to solve the task)

In order to achieve the above object, the invention according to claim 1 is provided with a cover on the platform, the outer shape of which roughly coincides with the pit opening surface, and which covers the upper surface of the platform except for the operating portion of the lifting mechanism. In the ascending operation, the pit opening surface is closed by the cover portion.

The invention according to claim 2, in addition to the object of claim 1, is a link mechanism for elevating a vehicle pedestal by stretching the up / down mechanism up and down by a drive device, wherein a lower end of the link mechanism supported on the platform is provided. It was formed to bend in a "-" shape in the vertical direction at the uppermost position of the vehicle stand.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described based on drawing.

1 and 2 are explanatory views showing an example of a vehicle maintenance lift of the present invention, in which FIG. 1 shows the upper limit position of the vehicle pedestal and FIG. 2 shows the lower limit position, respectively. The vehicle maintenance lift 1 includes a lower elevating mechanism 4 for elevating and operating an elevating platform 3 provided at an upper end in a pit 30 concave on the bottom surface F, and the lower elevating mechanism 4. It is provided on the lifting platform 3 of the upper and lower two-stage lifting means (2) formed of the up and down mechanism (6) for lifting up and down the vehicle pedestal (5) provided on the upper end. The elevating means 2 is disposed on the left and right sides of the pit (the right side in FIG. 1 is placed in front of the pit 30 and the in-plane direction is the left and right direction of the pit 30). As shown in FIG. 3, the pit 30 communicates with the pair of planar rectangular accommodating parts 31 which the left and right lifting means 2 arrange | positioned, and the communication part which communicates the accommodating part 31, respectively. It is formed in the plane concave shape which has the (32), and the communication part 32 is closed by the cover 33 in a steady state.

In addition, in FIG.1, FIG.2, (A) shows the side surface of the lifting means 2 of one side, (B) shows the longitudinal cross-section, respectively, and since both structures are the same, the lifting means 2 of one side is below. ) Only.

First, in the lower elevating mechanism 4, the pair of lifting platforms 3 are mounted on the upper side of the base 7 fixed to the bottom surface of the accommodating portion 31 in the pit 30 by a pair of left and right X links 8. Supporting the lifting movement vertically, and before and after the X-link (8), the upper and lower pairs of small links (9) in which the ends are fixed to the bending shaft (10), There are four places in total, one pair before and after. Each small link 9 is connected to the bending shaft 10 at the right and left sides, and the front and rear are also connected to each other by the link 11. In addition, the lower sides of the front small link 9 are connected by the tuning rod 12, and the front end of the connecting piece 13 provided in the intermediate portion of the tuning rod 12 and the X link 8 A hydraulic cylinder 15 serving as a driving device is installed between the rods 14 arranged on the left and right sides of the lower frame 7 below, to allow the lowering mechanism 4 to expand and contract in the vertical direction.

Next, as shown in FIG. 3, the up-and-down mechanism 6 connects a pair of left and right X links 16 and 17 as a link mechanism up and down and between the upper and lower X links 16 and 17. As shown in FIG. The expansion / extending operation | movement was made possible by the hydraulic cylinder 18 as a temporary drive apparatus in the up-down direction, and the vehicle base 5 is provided in the upper end of the upper X link 16. As shown in FIG.

In addition, the lower end of the lower X-link 17 is in the fixed end 19 rotatably condensed to the upper surface of the platform 3, and a pair of left and right rails 21 provided in the upper surface of the platform 3; It is made up of the slide end 20 which can be slidably supported, and the fixed end 19 and the slide end 20 become a rough vertical direction at the upper limit position of the vehicle stand 5 shown in FIGS. It is bent in shape. Reference numeral 22 is a coaxial shaft that connects the end portions 19 to each other.

Further, the lifting table 3 is provided with a cover portion 23 covering the rail 21 and the coaxial shaft 22 with an external shape capable of closing the opening of the housing portion 31. The cover section 23 penetrates the end stage 19 and the slide end 20, and rotates the end stage 19 and the slide end 20 along the expansion and contraction operation of the X-link 17. Slits 24... Having an acceptable length are formed.

In the vehicle maintenance lift 1 configured as described above, the hydraulic cylinders 15 and 18 are lifted by being driven and controlled by a hydraulic circuit not shown. That is, when the hydraulic cylinders 15 and 18 contract and contract together, as shown in Fig. 2, the lower elevating mechanism 4 and the upper elevating mechanism 6 are folded together, but in this case the folded up elevator Since only the thickness of the sphere 6 is set so that the cover part 23 descends from the floor surface F, the upper surface of the vehicle base 5 will correspond with the floor surface F in this lower limit position. At this time, in the up-and-down mechanism 6, since the constriction end 19 and the slide end 20 of the X-link 17 are bent in a U-shape, the X-link 7 is upward of the cover part 23. As shown in FIG. It is folded in and does not interfere with the cover part 23.

Then, when the hydraulic cylinders 15 and 18 are extended by the lower limit position (both the hydraulic cylinders may be simultaneous or may be advanced at the same time for this expansion operation), the lowering mechanism 4 uses the hydraulic cylinder 15 1) stands on the front small link 9 through the connecting piece 13, and the rear small link 9 and the X link 8 also stand up through the link 11, as shown in FIGS. As described above, the platform 3 is vertically raised to the upper limit position. On the other hand, in the up / down mechanism 6, the hydraulic cylinder 18 extends the upper and lower X-links 16 and 17, and raises the vehicle stand 5 to the upper limit position.

At this upper limit position, the lifting table 3 of the lower lifting mechanism 4 has a setting in which the upper surface of the cover portion 23 coincides with the bottom surface F. As shown in FIG. Therefore, the opening face of the accommodating part 31 is almost completely occluded by the cover part 23, and the constriction end 19 or the slide end 20 of the X-link 17 located below the cover part 23 is carried out. ), The rail 21 and the coaxial shaft 22 are not exposed.

As described above, according to the vehicle maintenance lift 1 of the above aspect, the outline of the lifting platform 4 of the lower lifting mechanism 4 substantially coincides with the opening surface of the receiving portion 31, and the condensing end 19 and The cover part 23 which covers the upper surface of the platform 3 except for the operation | movement part of the slide end 20 is provided, and at the time of the lifting operation of the lifting means 2, the accommodating part 31 by the cover part 23 is carried out. By closing the opening surface of the upper and lower openings, the lower end portions of the contact end 19, the slide end 20, the tuning shaft 22, and the like of the X-link 17 in the elevating mechanism 6 are covered with the cover 23. Will not be exposed above. Therefore, even in the upper limit position of the vehicle stand 5, the opening surface of the accommodating part 31 can be made as flat as possible, and there is almost no obstruction of an operator, and workability is improved.

In particular, the X lifting links 6 supported by the lifting platform 3 are X links 16 and 17 which move the up and down mechanism 6 up and down by the hydraulic cylinder 18 to move up and down the vehicle pedestal 5. Since the lower end of the slit is bent and formed into a U-shape which becomes a substantially vertical direction at the upper limit position of the vehicle stand 5, the slit 24 provided in the cover portion 23 also ends with a minimum area, so that a tool or the like can be removed. The risk of falling into the pit 30 is reduced. In addition, it does not interfere with the cover part 23 when the up / down mechanism 6 is folded.

The up / down lifting mechanism and the down lifting mechanism are not limited to the above-described form. For example, the up / down lifting mechanism adopts only one stage of an X link or a lambda (lambda) link, or the down lifting mechanism can also be appropriately selected. Do. In addition, the driving device is not limited to a hydraulic cylinder, and other actuators such as an air cylinder and a motor may be employed.

On the other hand, in the said aspect, although the slit through which a condensation end and a slide end penetrate is provided in the cover part, it may replace with the notch formed from the edge of a cover part, and in these slit or notch, a condensation end or A rubber plate having a slit through which the slide end penetrates may be attached, for example, a fastener connected to the slide end and opened or closed according to the slide may be attached to further reduce the opening area.

According to the invention described in claim 1, the lower end portion of the elevating mechanism is not exposed by the cover portion. Therefore, the opening surface of the pit can be made as flat as possible even at the upper limit position of the vehicle pedestal, and there is almost no obstruction of the operator, thereby improving workability.

According to the invention described in claim 2, in addition to the effect of claim 1, the slit provided in the cover portion also ends in a minimum area, and the risk of dropping a tool or the like into the pit is reduced. In addition, it does not interfere with a cover part when the up / down mechanism is folded.

Claims (2)

Lifting means comprising a lower elevating mechanism for elevating and operating the platform provided at the upper end in a pit concavely provided at the bottom surface, and an elevating mechanism provided at the elevating object of the lower elevating mechanism and elevating the vehicle pedestal provided at the upper end. In the vehicle maintenance lift which provided and the said pit opening surface was closed by the said vehicle base by the lowering operation of the said lifting means, In the platform, a cover portion is roughly coincident with the pit opening surface, and a cover portion covering the upper surface of the platform except for the operating portion of the lifting mechanism is provided. A vehicle maintenance lift characterized in that the pit opening surface is closed. The method of claim 1, A link mechanism for lifting and lowering a vehicle stand by moving the up / down mechanism up and down by a drive device, wherein a lower end of the link mechanism supported on the platform is in a U-shape which becomes a substantially vertical direction at the upper limit position of the vehicle stand. Vehicle maintenance lift, characterized in that formed bending.

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