JP2004001953A - Cradle of lift for vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cradle mounted to a swing arm of a lift for a vehicle for holding a vehicle, and capable of freely adjusting height. <P>SOLUTION: This cradle 300A of a lift for a vehicle comprises an outer cylinder body 310 installed to a vehicle holding part 12 of the lift for the vehicle; an intermediate cylinder body 320 for adjusting the height, whose male screw part 321 on an outer periphery is fitted to a female screw part 312 in a cylinder of the outer cylinder body 310, capable of elevating in an upper and lower direction; an elevating strut 340, which is slidably inserted in a cylinder of the intermediate cylinder body 320 in an upper and lower direction and whose upper end is directly or indirectly brought into contact with a mounted vehicle side; and an elastic body 370 interposed between the elevating strut 340 and the intermediate cylinder body 320 and always energizing the elevating strut 340 upwards. Thereby, at the time of usage, an operator only aligns the elevating strut 340 with a desired point such as a jack-up point of the vehicle under a press-down condition, and releases it, for obtaining quick workability. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cradle as an attachment which is mounted on a vehicle holding portion such as a swing arm or a table board of a vehicle lift and holds a vehicle, and which can adjust its height freely.
[0002]
Various types of vehicle lifts have already been proposed. For example, there is a pair of swing arms in the left and right lift units, and a system in which the vehicle is lifted and lowered by these four swing arms (swing arm system), and a pair of table boards extending in the front and rear directions in the left and right lift units. A system in which the vehicle is moved up and down by the table board (board system), or a system in which the vehicle is mounted on the table board for each wheel and driven up and down (drive-on system), and some of these are appropriately used There is a combination method (multi-purpose method).
[0003]
On the other hand, even on the side of the vehicle to be raised and lowered, there are various structures such as a normal passenger car type, a truck type, a recent RV car and a one-box car type. Since the bottom structure is also different, it is necessary to appropriately select and use vehicle lifts having the various structures described above.
[0004]
In any case, except for driving the vehicle on its own, the swing arm and table board are positioned on the bottom side of the vehicle to support the desired point (jack-up point). Adjustments may need to be made.
For this reason, conventionally, a device for height adjustment, for example, a cradle is often installed at a vehicle support point of a swing arm or a table board.
[0005]
[Problems to be solved by the invention]
However, in the case of a conventional cradle, for example, in the case of a passenger car type vehicle, the cradle receiving portions are set at the jack-up points (four places) before and after the side sills on the left and right sides of the vehicle bottom side. However, this setting and the height adjustment at each point took a lot of time.
[0006]
That is, in order to lift and lower the passenger car type vehicle 20 using the swing arm type vehicle lift 10 as shown in FIG. 7, (1) first, a pair of left and right lift portions 11, Need to be moved to four jack-up points on the bottom surface side of the vehicle 20.
At this time, when the vehicle 20 is installed on the floor, the bottom surface of the vehicle is low, and the operator must squat down and turn around the four swing arms 12 in order to move them to a predetermined place. .
[0007]
(2) In addition, when the receiving base 30 has a structure as shown in FIGS. 8 and 9, it is necessary to appropriately adjust the height of the receiving part 31 at four jack-up points. Since the height adjustment is performed by screwing the screw portion 32a of the lifting column 32 and the base member 33 having the female screw portion, the receiving portion 31 needs to be rotated an appropriate number of times. (3) At this time, as shown in FIG. 8, the lift groove 11 is gradually raised and lowered, and the holding groove 34 a of the holding member 34 such as hard rubber mounted on the receiving portion 31 of the receiving base 30 is moved to the vehicle. It is necessary to make a fine adjustment so as to fit the side sill 21 on the 20 side. This alignment also needs to be performed by the operator while sequentially turning around the four jack-up points.
[0008]
(4) Thereafter, as shown in FIG. 9, it is necessary to lift the vehicle 20 slightly after raising the lift portion 11 slightly and confirming that the holding groove 34a and the side sill 21 are fitted. In particular, much time is required for positioning by fine adjustment for fitting the holding groove 34a to the side sill 21 and for confirming the fitting between the holding groove 34a and the side sill 21.
[0009]
SUMMARY OF THE INVENTION The present invention has been made in view of such conventional circumstances, and an object of the present invention is to provide a receiving stand in which the positioning of the receiving stand with the vehicle side and the engagement for support can be performed extremely easily and quickly. Things.
[0010]
[Means for Solving the Problems]
According to the first aspect of the present invention, an outer cylindrical body installed in a vehicle holding portion of a vehicle lift, and a male screw portion on an outer periphery is fitted to a female screw portion in a cylinder of the outer cylindrical body, and the outer cylindrical body is fitted in a vertical direction. A height-adjustable middle cylinder that can be moved up and down, and is inserted into the cylinder of the middle cylinder so as to be slidable in the vertical direction, and the upper end of the middle cylinder is directly or indirectly mounted on the vehicle. A lift base for a vehicle, comprising: a lifting column to be moved; and an elastic body interposed between the lifting column and the middle cylinder to constantly urge the lifting column upward.
[0011]
According to a second aspect of the present invention, the upper end of the elastic body is attached to an opening formed in the axial direction from the lower end of the elevating column, while the lower end of the elastic body is attached to the lower end of the middle cylinder. 2. The cradle of a vehicle lift according to claim 1, wherein the cradle is supported by a bottom cover provided.
[0012]
In the present invention according to claim 3, a cylindrical sleeve having a vertical groove in the vertical direction and having a notch engaging portion communicating with the vertical groove at a lower end is fitted in the middle cylindrical body, 3. A cradle for a vehicle lift according to claim 1, wherein a key ring having a key claw engaged with a vertical groove and a notch engaging portion of the sleeve is fixed to a lower end of the lifting column. is there.
[0013]
According to a fourth aspect of the present invention, there is provided a vehicle lift, wherein an outer cylinder body is installed so as to be able to ascend and descend to a vehicle holding section, and an outer male screw section is fitted to a female screw section in the cylinder of the outer cylinder body. A vertically supporting column for height adjustment, which is made to be able to move up and down, and whose upper end is directly or indirectly abutted on the mounted vehicle side, and is mounted on the bottom side of the vehicle holding section of the vehicle lift. A lid that closes the bottom side of the outer cylinder, and an elastic body that is interposed between the lid and the outer cylinder or the lifting column and constantly urges the outer cylinder upward. In the cradle of the vehicle lift.
[0014]
In the present invention according to claim 5, the upper end of the elastic body is attached to a large-diameter cylinder provided inside the outer cylinder, while the lower end of the elastic body is supported by the lid. The cradle of a vehicle lift according to claim 4, wherein:
[0015]
According to a sixth aspect of the present invention, a cylindrical sleeve having a vertical groove in a vertical direction in a through hole of a vehicle holding portion of the vehicle lift and having a notch engaging portion communicating with the vertical groove at a lower end is provided. 6. The vehicle according to claim 4, wherein a key ring having a key claw to be engaged with a vertical groove and a notch engaging portion of the sleeve is fixed to a lower end of the outer cylinder while being fitted. On the cradle of the lift.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
1 to 4 show an embodiment of a receiving stand of a vehicle lift according to the present invention. The cradle 300A is not particularly limited to the lift to be used. For example, the cradle 300A is installed and used on a swing arm type as shown in FIG.
[0017]
In this cradle 300A, reference numeral 310 denotes an end of the swing arm 12, that is, an outer cylindrical body installed in the through hole 13 of the vehicle holding part 12a, and 320 denotes a female screw part 312 in the outer cylindrical body 310 on the outer circumference. The middle cylinder body for height adjustment, in which the part 321 is fitted to be able to move up and down in the vertical direction, 330 is a supporting plate fixed to the upper end of the middle cylinder body 320 and also serving as an operation knob. It is slidably inserted into the cylinder in the up-down direction, and its upper end is placed on the bottom side of the vehicle via a receiving portion 350 made of a substantially U-shaped plate and a holding member 360 attached to the receiving portion 350 made of hard rubber or the like. The lifting column 370 to be contacted is an elastic body such as a coil spring which is interposed between the lifting column 340 and the above-mentioned middle cylindrical body 320 and constantly urges the lifting column 340 upward.
[0018]
Since the outer cylinder 310 has the enlarged-diameter flange 311 on the upper end side, the outer cylinder 310 can be easily fixed and installed simply by being fitted into the through hole 13 of the swing arm 12 from above. The upper end of the elastic body 370 is inserted into and attached to an opening 341 formed in the axial direction from the lower end of the lifting column 340, while the lower end of the elastic body 370 is provided at a lower end of a bottom lid 332 provided at the lower end of the middle cylinder 320. Supported by. The bottom cover 332 may be fixed by a fixing tool 323 such as a screw as shown in the figure, but may be a screw-in type.
[0019]
The elevating column 340 is always urged upward by the elastic body 370, but this fixing is performed by using a cylindrical sleeve 380 and a key ring 390 as shown in FIGS. be able to.
[0020]
That is, a cylindrical sleeve 380 having a vertical groove 381 in the up-down direction and a notch engaging portion 382 communicating with the vertical groove 381 at the lower end is fitted into the middle cylindrical body 320 by screwing or the like. On the other hand, a key ring 390 having a key claw 391 engaged with the vertical groove 381 of the sleeve 380 and the notch engaging portion 382 may be fixed to the lower end of the elevating column 340 by a fixing tool 392 such as an E-ring. In addition, the projection claw 393 inside the key ring 390 is a locking claw for preventing rotation which is locked to the lifting column 340 side.
[0021]
Next, a method of using the receiving table 300A will be described.
Normally, as shown in FIG. 1, the lifting arm 340 is always protruded upward by the elastic body 370, and the swing arm 12 is moved to the jack-up point portion on the bottom side of the vehicle. At the jack-up point portion, the receiving portion 350 is once depressed downward against the restoring force of the elastic body 370, the holding groove (not shown) of the holding member 360 is aligned with the side sill portion on the vehicle side, and then released. Is fine. That is, it is only necessary to release the depression.
[0022]
Then, the lifting column 340 is automatically raised by the restoring force of the elastic body 370, so that the holding groove of the holding member 360 is automatically and reliably fitted into the side sill portion on the vehicle side. This operation can be performed with almost one touch. The same applies to the other jack-up points.
[0023]
Thereafter, if the lift portion of the lift is raised, the vehicle can be quickly lifted. At this time, since the load of the vehicle is applied to the receiving portion 350, as shown in FIG. 4, the lifting column 340 descends, and the bottom surface side of the receiving portion 350 comes into contact with the support plate 330 also serving as an operation knob. As a result, the receiving portion 350, the support plate 330, the lifting column 340, the middle cylinder 320, and the outer cylinder 310 are integrated as a kind of rigid body, so that the bottom surface side of the vehicle is stably supported.
[0024]
To adjust the height of each receiving table 300A during this lift, it is only necessary to rotate the support plate 330 serving also as an operation knob in an appropriate direction. The rotation of the support board 330 raises and lowers the middle tubular body 320 with respect to the outer tubular body 310, so that the height of the support board 330 can be easily and quickly adjusted.
[0025]
In order to fix the lifting column 340 that has protruded upward by the elastic body 370 when the lift is not used or the like, the receiving portion 350 of the receiving base 300A is pressed down similarly to the case of FIG. It is only necessary to turn 350 a little.
Then, the key pawl 391 of the key ring 390 is engaged with the notch engaging portion 382 of the sleeve 380, so that the elevating column 340 is fixed in a contracted state. This operation (lock operation) can also be performed by almost one-touch operation. When the elevating column 340 is moved up and down, the key claw 391 of the key ring 390 is located in the vertical groove 381 of the sleeve 380, so that the elevating column can be freely moved up and down. Here, the vertical stroke of the vertical support column 340 by the elastic body 370 is restricted by the length of the vertical groove 381.
[0026]
5 and 6 show another embodiment of the receiving stand of the vehicle lift according to the present invention. This cradle 3001B is basically the same as the cradle 3001A, except that not only the elevating column 340 but also the outer cylinder 310 is urged upward by the elastic body 370. .
[0027]
In this cradle 300B, reference numeral 310 denotes an outer cylindrical body which can be moved up and down in the tip of the swing arm 12, that is, the through hole 13 of the vehicle holder 12a. The vertical support column for height adjustment, in which the male screw portion 342 is fitted and which can be raised and lowered in the vertical direction, 330 is a support plate that is fixed to the upper end of the vertical support column 340 and also serves as an operation knob, and 350 is a support plate for the vertical support column 340. A receiving portion 360 made of a substantially U-shaped plate fixed to the upper end is a holding member made of hard rubber or the like attached to the receiving portion, and 370 is an expanding member formed downward from the middle of the inside of the outer cylinder 310. The lifting column 340 is interposed between the diameter cylindrical portion 313 and the tip of the swing arm 12, that is, the cap-shaped lid 410 attached to the bottom side of the vehicle holding portion 12 a to close the bottom side of the outer cylindrical body 310. Always on An elastic body such as a coil spring for biasing the can.
[0028]
Since the outer cylinder 310 has the enlarged-diameter flange 311 on the upper end side, the outer cylinder 310 can be easily fixed and installed simply by being fitted into the through hole 13 of the swing arm 12 from above. The mounting of the cap-shaped lid 410 is not particularly limited, and may be fixed with a fixing tool 411 such as a screw.
[0029]
The elevating column 340 is always urged upward by the elastic body 370 together with the outer cylinder 310. This fixing is performed in the same manner as in the case of the cradle 3001A, for example, as shown in FIGS. As shown, it can be performed by using a cylindrical sleeve 380 and a key ring 390.
[0030]
That is, a cylindrical sleeve 380 having a vertical groove 381 in the vertical direction in the through hole 13 of the vehicle holding portion 12a of the swing arm 12 and a notch engaging portion 382 communicating with the vertical groove 381 at the lower end is screwed. And a key ring 390 having a key claw 391 engaged with the vertical groove 381 of the sleeve 380 and the notch engaging portion 382 is fixed to a lower end of the outer cylindrical body 310 by a fixing tool 392 such as an E-ring. You should let it. In addition, the projection claw 393 inside the key ring 390 serves as a locking claw for preventing rotation which is locked to the outer cylinder 310 side. Further, the mounting relationship between the sleeve 380 and the key ring 390 can be reversed.
[0031]
Next, a method of using the receiving table 300B will be described.
Normally, as shown in FIG. 5, the lifting column 340 is always protruded upward together with the outer cylinder 310 by the elastic body 370, and the swing arm 12 is moved to the jack-up point portion on the vehicle bottom side. At the jack-up point portion, the receiving portion 350 is once depressed downward against the restoring force of the elastic body 370, the holding groove (not shown) of the holding member 360 is aligned with the side sill portion on the vehicle side, and then released. Is fine. That is, it is only necessary to release the depression.
[0032]
Then, the lifting column 340 automatically rises together with the outer cylinder 310 by the restoring force of the elastic body 370, so that the holding groove of the holding member 360 is automatically and reliably fitted into the side sill portion on the vehicle side. This operation can also be performed with almost one touch. The same applies to the other jack-up points.
[0033]
Thereafter, if the lift portion of the lift is raised, the vehicle can be quickly lifted. At this time, since the load of the vehicle is applied to the receiving portion 350, as shown in FIG. 6, the elevating column 340 descends together with the outer cylinder 310, and the bottom surface of the receiving portion 350 is a support plate that also serves as an operation knob. Contact 330. As a result, the receiving portion 350, the support board 330, the lifting column 340, and the outer cylinder 310 are integrated as a kind of rigid body, so that the bottom surface side of the vehicle is stably supported.
[0034]
In order to adjust the height of each receiving table 300B at the time of this lift, it is only necessary to rotate the support plate 330 serving also as an operation knob in an appropriate direction. The rotation of the support board 330 raises and lowers the lifting column 340 with respect to the outer cylinder 310, so that the height of the support board 330 can be adjusted easily and quickly.
[0035]
In order to fix the lifting column 340 that has protruded upward by the elastic body 370 when the lift is not used or the like, the receiving portion 350 of the receiving base 300B is pressed down similarly to the case of FIG. It is only necessary to turn 350 a little.
Then, the key pawl 391 of the key ring 390 is engaged with the notch engaging portion 382 of the sleeve 380, so that the elevating column 340 is fixed in a contracted state. This operation (lock operation) can also be performed by almost one-touch operation. When the elevating column 340 is moved up and down, the key claw 391 of the key ring 390 is located in the vertical groove 381 of the sleeve 380, so that the elevating column can be freely moved up and down. Here, the vertical stroke of the vertical support column 340 by the elastic body 370 is restricted by the length of the vertical groove 381.
[0036]
In the above embodiment, the present invention is applied to a swing arm type vehicle lift. However, the present invention is not limited to this, and can be applied to other lifts. For example, when the present invention is applied to a board-type lift, the pedestals 300A to 300B are directly installed at predetermined portions (four front, rear, left and right) of the table board, or before and after two plate-shaped auxiliary plates. It is also possible to install two receiving stands 300A to 300B and use these two plate-shaped auxiliary plates between the left and right table boards.
[0037]
【The invention's effect】
As is clear from the above description, the following excellent effects can be obtained by the pedestal of the vehicle lift according to the present invention.
[0038]
(1) First, in the present invention according to claim 1 or 4, since the elevating column of the receiving table is constantly urged upward by the elastic body, when using the same, the worker presses down the elevating column. All that is required is to align and release it at a desired point such as a jack-up point of the vehicle. That is, almost one-touch operation is sufficient, and quick workability can be obtained. Moreover, only one operation is required for one location. Therefore, troublesome operations such as fine adjustment of positioning and confirmation of fitting with the holding groove, which are performed by raising and lowering the lift little by little as in the case of the conventional cradle, are completely eliminated.
[0039]
(2) According to the present invention as set forth in claim 1 or 4, the height can be easily and quickly adjusted by the vertical movement of the middle cylinder and the lifting column with respect to the outer cylinder of the cradle by the screw structure. .
[0040]
(3) According to the second or fifth aspect of the present invention, the elastic body is provided between the opening at the lower end of the elevating column and the bottom lid at the lower end of the middle cylindrical body, or between the enlarged-diameter cylindrical part inside the outer cylindrical body and the lid. Therefore, a reliable operation can be expected without requiring a large space and without increasing the size of the device.
[0041]
(4) According to the third or sixth aspect of the present invention, since a lock mechanism including a cylindrical sleeve having a vertical groove and a notch locking portion and a key ring having a key claw is incorporated, It is possible to fix the elevating column of the receiving stand in a free state constantly urged upward by the elastic body, or the outer cylindrical body together with the elevating column in the contracted state. Thereby, high safety can be obtained without the cradle itself being in the way. In addition, the locking operation is not bothersome at all, and can be easily and quickly performed by a one-touch operation of pushing down the elevating support column portion of the receiving stand and slightly rotating it.
[Brief description of the drawings]
FIG. 1 is a partial longitudinal sectional view showing an embodiment in which a lifting column in a receiving stand of a vehicle lift according to the present invention is in a free state.
FIG. 2 is a side view showing an example of a cylindrical sleeve for a lock mechanism incorporated in the receiving stand of FIG. 1;
3 is a plan view showing an example of a cylindrical key ring for a lock mechanism incorporated in the receiving stand of FIG. 1;
FIG. 4 is a partial longitudinal sectional view showing one embodiment of a state in which a lifting column in the receiving stand of FIG. 1 is fixed.
FIG. 5 is a partial vertical cross-sectional view showing another embodiment of the lifting stand for the receiving stand of the vehicle lift according to the present invention in a free state.
FIG. 6 is a partial longitudinal sectional view showing another embodiment of the receiving stand of FIG. 5 in which a lifting column is fixed.
FIG. 7 is a perspective view showing a swing arm type vehicle lift.
8 is a perspective view showing a setting process of a conventional cradle used for the vehicle lift of FIG. 7;
FIG. 9 is a perspective view showing a setting process of a conventional cradle used for the vehicle lift of FIG. 7;
[Explanation of symbols]
300A-B Auxiliary attachment 12 Swing arm 12a Vehicle holding part 13 Through hole 310 Outer cylinder 311 Large diameter flange 312 Female screw part 313 Large diameter cylinder 320 Medium cylinder 321 Male screw part 330 Support plate 340 also serving as operation knob Elevating column 341 Opening 342 Male screw 370 Elastic body 380 such as coil spring 380 Cylindrical sleeve 381 Vertical groove 382 Notch locking part 390 Key ring 391 Key claw 410 Lid

Claims (6)

An outer cylindrical body installed on a vehicle holding portion of a vehicle lift, and a height adjusting member for fitting a female screw part on an outer periphery to a female screw part in the cylinder of the outer cylindrical body so that the male screw part can be moved up and down. A middle cylinder body, a lifting column that is vertically slidably inserted into the cylinder of the middle cylinder body, and whose upper end is directly or indirectly brought into contact with a vehicle side mounted thereon, and the lifting column. And a resilient member interposed between the middle cylindrical body and constantly biasing the lifting column upward. The upper end of the elastic body is attached to an opening formed in the axial direction from the lower end of the lifting column, while the lower end of the elastic body is supported by a bottom lid provided at the lower end of the middle cylinder. The cradle of a vehicle lift according to claim 1, wherein A cylindrical sleeve having a vertical groove in the vertical direction and having a cutout locking portion communicating with the vertical groove at the lower end is fitted in the cylinder of the middle cylindrical body, while the sleeve is fitted at the lower end of the lifting column. 3. The cradle of a vehicle lift according to claim 1, wherein a key ring having a key claw engaged with the vertical groove and the notch engaging portion is fixed. An outer cylinder body that is installed to be able to ascend and descend in the vehicle holding part of the vehicle lift, and a male screw part on the outer circumference is fitted to a female screw part in the cylinder of the outer cylinder so that it can be moved up and down in the vertical direction. A lifting column for height adjustment, the upper end of which is directly or indirectly contacted with the mounted vehicle side, and the bottom side of the outer cylinder body mounted on the bottom side of the vehicle holding portion of the vehicle lift. A cradle for a vehicle lift, comprising: a lid to be closed; and an elastic body interposed between the lid and the outer cylinder or the elevating column to constantly urge the outer cylinder upward. The upper end of the elastic body is attached to a large-diameter tube provided inside the outer cylinder, while the lower end of the elastic body is supported by the lid. Car lift cradle. In the through hole of the vehicle holding portion of the vehicle lift, a cylindrical sleeve having a vertical groove in the vertical direction and having a notch engaging portion communicating with the vertical groove at the lower end is fitted. 6. A cradle for a vehicle lift according to claim 4, wherein a key ring having a key claw to be engaged with the vertical groove and the notch engaging portion of the sleeve is fixed to a lower end of the sleeve.

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