JP2009208960A - Vehicular lifting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To simply operate a turning lock device of a swing arm in a vehicular lifting device. <P>SOLUTION: The vehicular lifting device 10 having the turning lock device 50, comprises a releasing lever 56 provided on the other sides of a lift table 32 and a swing arm 40, set to switch between a non-work position and a releasing work position, allows an energizing means 55 to energize a lock pin 52 at the non-work position, and position-regulates the lock pin 52 to the outside of a lock plate 51 against the energizing force of the energizing means 55 at the releasing work position. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

  The present invention relates to a vehicle lift apparatus having a swing lock device for a swing arm attached to a lift table.

  As described in Patent Document 1, as a vehicle lift device, a swing arm is attached to a lift table that is lifted and lowered by a lifting device, and the swing arm is supported so as to be able to turn on the lift table. Some have a turning lock device for locking at a turning work position determined on a lift table.

The conventional swing lock device is provided separately for each of the front and rear swing arms, and a lock pin inserted into a pin support box provided on the swing arm via a spring is used to swing the swing arm on the lift table side. It is engaged with or disengaged from any of a plurality of lock holes located around the center.
JP2001-39688

  In the conventional turning lock device, the operator directly operates the lock pin. For this reason, when the lock pin is pulled out from the lock hole and the unlocking operation is performed, it is necessary to manually maintain the state in which the lock pin is pulled out and manually swing the swing arm to a position where the lock pin is displaced from the lock hole. Yes, it is complicated.

  Further, the conventional turning lock device is complicated because it is necessary to individually unlock the lock pins provided on the front and rear swing arms.

  An object of the present invention is to easily operate a swing lock device of a swing arm in a lift device for a vehicle.

  According to the first aspect of the present invention, a swing arm is attached to a lift table that is lifted and lowered by a lifting device, the swing arm is supported so as to be turnable on the lift table, and the swing state of the swing arm is determined on the lift table. In a vehicle lift device having a turning lock device that locks at a work position, the turning lock device is provided on one side of the lift table and the swing arm, and a plurality of locks positioned around the swing center of the swing arm. A lock plate provided with a hole, provided on the other side of the lift table and the swing arm, urged toward the lock plate, and when the lock plate matches any one of the lock holes, A lock pin that can be inserted, an urging means attached to the lock pin, and urging the lock pin toward the lock plate, and a lift table It is provided on the other side of the swing arm and is switched between a non-working position and a release work position, and the biasing means is free to bias the lock pin in the non-working position, and the biasing means is It has a release lever that restricts the position of the lock pin to the outside of the lock plate against the urging force.

  According to a second aspect of the present invention, in the first aspect of the invention, the pivot shafts of the front and rear swing arms are pivotally supported by the arm bracket on the lift table side, and the front and rear lock plates are respectively provided on the front and rear swing arms. The release lever is supported by the arm bracket so that it can swing, and the release bar inserted through the support plate of the arm bracket is supported so that it can move up and down. Position the release bar with the release lever at the release work position, position the release bar at the lower release work position, and pass the release plate with the front and rear lock pins at the lower end of the release bar and the support plate of the arm bracket from below The lower end engaging portion of each lock pin can be brought into contact with the lower surface of the release plate, and the lock is interposed between the intermediate portion of each lock pin and the support plate. When the release lever is positioned at the non-working position, the release bar and release plate are positioned at the upper non-working position. The lock pins can be freely moved up to the lock plate side by the biasing force of the biasing means until the lower end engaging portions of the lock pins are brought into contact, and when the release lever is positioned at the release work position, the release bar The release plate is positioned at the lower release work position, and the lower release plate pushes down the lower end engaging portion of each lock pin, and the position of the lock pin is regulated below the lock plate against the urging force of the urging means. It is what you do.

(Claim 1)
(a) The operator operates the lock pin via a release lever that is switched between the non-work position and the release work position without directly operating the lock pin. The release lever set at the release work position continues to regulate the position of the lock pin to the outside of the lock plate against the urging force of the urging means. Can be unlocked and swiveled with one hand.

(Claim 2)
(b) When the release lever is positioned at the non-working position, the release bar and the release plate are positioned at the upper non-working position, and the locks are locked until the lower end engaging portion of each lock pin collides with the upper release plate. When the pin can be freely moved upward by the biasing force of the biasing means and the release lever is positioned at the release work position, the release bar and release plate are positioned at the lower release work position. The release plate pushes down the lower end engaging portion of each lock pin, and positions the lock pin below the lock plate against the urging force of the urging means. Therefore, the front and rear lock pins can be simultaneously unlocked by an operation applied to only one release lever.

  1 shows a lift device for a vehicle, (A) is a side view showing a lift-up state of the lift table, (B) is a side view showing a retracted state of the lift table, and FIG. 2 is a plan view showing the lift device for a vehicle. 3 is a perspective view showing a swing arm standby state of the vehicle lift device, FIG. 4 is a perspective view showing a swing arm turning state of the vehicle lift device, FIG. 5 is a swing arm, and FIG. (B) is a plan view, FIG. 6 is a central sectional view showing a swing lock device of a swing arm, FIG. 7 is a sectional view taken along line VII-VII in FIG. 6, and FIG. 8 is a schematic diagram showing a non-working state of the swing lock device. FIG. 9 is a schematic diagram showing a release work state of the swing lock device, FIG. 10 is a schematic diagram showing a release end state of the swing lock device, FIG. 11 is a schematic diagram showing a swing arm receiving device, and FIG. FIG. 13 is a plan view showing the device. It is a schematic view showing a usage state of location.

  As shown in FIGS. 1 to 4, the vehicle lift device 10 includes a pair of left and right lifting devices 20, 20 and each lifting device 20 on each of the left and right pits 12, 12 provided on the floor surface 11 of the automobile maintenance yard. The main lift table 30, the sub lift device 31, and the sub lift table 32 that are moved up and down can be stored. The lifting device 20 is provided with an X link mechanism including first and second links 21 and 22 between the base 13 embedded in the bottom of the pit 12 and the lower surface of the main lift table 30, and the base 13 and the first link 21. A hydraulic cylinder 23 is provided between the hydraulic cylinder 23 and the main lift table 30 can be moved up and down in a horizontal state by expansion and contraction of the hydraulic cylinder 23, and the main lift table 30 is stored in the pit 12 by the contraction operation of the hydraulic cylinder 23. The table surface of the main lift table 30 is set to the same level as the floor surface 11. The auxiliary lifting device 31 is provided with an X link mechanism including first and second links 31A and 31B between the lower surfaces of the main lift table 30 and the sub lift table 32, and an intermediate portion between the main lift table 30 and the first link 31A. The hydraulic cylinder 31C is provided between the main lift table 30 and the sub lift table 32 can be moved up and down horizontally on the main lift table 30 by the expansion and contraction of the hydraulic cylinder 31C. The table is stored in the plane of the lift table 30, and the table surface of the sub lift table 32 is set to the same level as the main lift table 30 and the floor surface 11.

  The vehicle lift device 10 causes the front and rear swing arms (support arms) 40 to stand by at a standby position defined on the side of the sub lift table 32 above the main lift table 30, and the swing arm 40 is connected to the main lift table 30 and the sub lift table 30. The pit 12 can be stored together with the lift table 32 (FIG. 1B), and the swing arm 40 pushed up from the standby position is supported on the auxiliary lift table 32 so as to be able to turn (FIG. 4).

  As shown in FIGS. 5 to 7, the vehicle lift device 10 is provided with a pair of front and rear arm guide shafts 42 on a support frame 41 fixed to the side portion of the auxiliary lift table 32, and the arm bracket 43 is moved up and down on the guide shafts 42. Support movably. The piston rod of the pneumatic arm pressing cylinder 44 provided on the support frame 41 is brought into contact with the intermediate plate 43C integrated with the arm bracket 43 (upper plate 43A, lower plate 43B), so that the arm bracket 43 can be lifted. The front and rear swing arms 40 are rotatably supported by the arm bracket 43. That is, the swing arm 40 has a double tube structure in which the slide arm 40B is inserted into the guide arm 40A so that the slide arm 40B can be extended and retracted, and the pivot 45 that supports the base portion of the guide arm 40A on the upper plate 43A and the lower plate 43B of the arm bracket 43. The slide plate 46 is provided on the lower surface of the guide arm 40A, and the slide plate 46 is slid on the table surface of the sub-lift table 32 so as to be pivotably supported. The vehicle lift device 10 includes a turning lock device 50 that locks the turning state of the slide arm 40 at a turning work position determined on the sub-lift table 32. Further, the vehicle lift device 10 is provided with a receiving device 70 at the tip of the slide arm 40 </ b> B of the swing arm 40.

  The vehicle lifting device 10 pushes the swing arm 40 upward from the standby position on the side of the auxiliary lift table 32 by the arm pressing cylinder 44 and slides on the auxiliary lift table 32 via the slide plate 46 to turn. Further, by extending and retracting the slide arm 40B with respect to the guide arm 40A, the receiving device 70 of the slide arm 40B can be set at the lift point of the vehicle, and the vehicle can be lifted up for maintenance. After the maintenance of the vehicle is completed, the swing arm 40 (guide arm 40A, slide arm 40B) is returned to the standby position on the side of the auxiliary lift table 32 again and waits, and the pit 12 together with the main lift table 30 and the auxiliary lift table 32 is placed. Can be stored.

  As shown in FIGS. 1, 3, and 4, the vehicle lift device 10 includes a pit cover 14 that closes the opening 12 </ b> A of the pit 12 when the main lift table 30 is positioned above the pit 12. The pit cover 14 is supported by the upper end portion of the compression spring support 15 erected at the four corners of the bottom portion of the pit 12, and is a pedestal 16 made of a toggle link that can be tilted and locked in the standing position. Supported by. A vertical movement device 17 comprising a release roller 17A provided at the intermediate portion of the second link 22 and a release lever 17B provided swingably on the pit cover 14 is interlocked with the lowering operation of the main lift table 30 by the lifting device 20. Then, while tilting the pedestal 16 from the standing position and compressing the compression spring support 15, the pit cover 14 is moved downward from the opening 12 </ b> A to the storage position (FIG. 1B) in the pit 12. . When the lifting device 20 positions the main lift table 30 above the pit 12, the pit cover 14 is moved upward from the storage position in the pit 12 by the spring force of the compression spring support 15 and is positioned at the opening 12 </ b> A of the pit 12. The opening 12A is closed (FIG. 1A).

  Hereinafter, each of the storage structures of the vehicle lift device 10 in the pit 12 of the (A) turning lock device 50, (B) receiving device 70, (C) the main lift table 30 and the sub lift table 32 will be described in detail. .

(A) Turning lock device 50 (FIGS. 5 to 10)
The turning lock device 50 locks the turning state of the front and rear swing arms 40 at a turning work position determined on the auxiliary lift table 32 so as to correspond to the lift point of the vehicle.

  As shown in FIGS. 5 to 7, the turning lock device 50 fixes the front and rear lock plates 51 to the outer periphery of the base portion of the guide arm 40 </ b> A of each front and rear swing arm 40, 45) A plurality of lock holes 51A... The lock plate 51 of the swing arm 40 is an arm bracket 43 that is supported on a guide shaft 42 provided on the support frame 41 of the sub lift table 32 so as to be movable up and down, and is a pivot shaft on which the swing arm 40 is pivotally mounted. 45 can enter a gap formed between the upper plate 43A and the intermediate plate 43C of the arm bracket 43 that supports 45.

  The turning lock device 50 includes front and rear lock pins 52 corresponding to the front and rear lock plates 51 in the arm bracket 43 described above. The lock pin 52 is inserted into a hole 53A provided on the lower plate 43B (support plate) of the arm bracket 43, a hole 53C of the intermediate plate 43C, and a hole 53B of the upper plate 43A in this order from below a hole 61A of the release plate 61 described later. The bulging lower end engaging portion 52A of the lock pin 52 is brought into contact with the lower surface of the release plate 61. At this time, the lock pin 52 is provided with a compression spring 55 (biasing means) around the lock pin 52 between a retaining ring 54 provided in an intermediate portion below the intermediate plate 43C and the upper surface of the lower plate 43B. Has been. As a result, the tip of the lock pin 52 pierced through the lower plate 43B and the intermediate plate 43C of the lock plate 51 entering the gap between the upper plate 43A and the intermediate plate 43C by the spring force of the compression spring 55. When it is biased toward the side and matches one of the lock holes 51A of the lock plate 51, it can be engaged with the lock hole 51A.

  The turning lock device 50 is provided with a release lever 56 on the side of the arm bracket 43 that supports the swing arm 40. The release lever 56 is switched between a non-working position and a release work position. The non-working position frees the compression spring 55 to urge the lock pin 52 toward the lock plate 51, and the release lever 56 is a compression spring. The position of the lock pin 52 is restricted outward (downward) from the lock plate 51 against the urging force of 55.

  That is, the turning lock device 50 supports the intermediate portion of the release lever 56 on the upper surface of the intermediate plate 43C of the arm bracket 43 via the support shaft 57 so as to be swingable. By the manual operation of the operator, the release lever 56 is moved between the non-working position where the base end operation portion 56A is housed in the cutout recess 58 of the upper plate 43A of the arm bracket 43 and the release work position pulled out from the cutout recess 58. To set up and down freely. Immediately below the tip pushing roller 56B of the release lever 56 is a release bar 60 inserted through a hole 59A in the lower plate 43B (support plate) of the arm bracket 43 and a hole 59B in the bar receiving portion 59 provided in the intermediate plate 43C. It is supported movably. The release plate 61 is fixedly attached to the lower end portion of the release bar 60 located on the lower side of the lower plate 43B, and the upper end portion of the release bar 60 located above the bar receiving portion 59 is generally hemispherical. A pressing head 60A is provided. The release bar 60 is provided with a compression spring 63 around the release bar 60 between a retaining ring 62 provided at an intermediate portion below the bar receiving portion 59 and the upper surface of the lower plate 43B. As a result, the pressing head 60A of the release bar 60 pierced through the lower plate 43B and the bar receiving portion 59 is urged so as to come into pressure contact with the tip pressing roller 56B of the release lever 56 by the spring force of the compression spring 63. Is done. The release lever 56 set to the non-working position by the operator's manual operation is stored in the surface of the upper plate 43 </ b> A, and the tip push-down roller 56 </ b> B moved up thereby is moved above the release bar 60 by the compression spring 63. The release bar 60 is positioned at the upper non-working position (FIGS. 8 and 10). The release lever 56 set to the release work position by the operator's manual operation is pulled out from the notch recess 58 of the upper plate 43A, and the tip push-down roller 56B that has moved down thereby opposes the compression spring 53 and releases the release bar 60. The push-down head 60A is pushed in, and the release bar 60 is positioned at the lower release work position (FIG. 9).

  When the release lever 56 is swung in the counterclockwise direction as shown in FIG. 10B and is in the release work position, the tip pushing roller 56B of the release lever 56 has a middle-high pushing head of the release bar 60. As a result of rolling contact from the top of 60A to the outer edge near the support shaft 57, the outer edge of the push-down head 60A of the release bar 60 biased upward by the spring force of the compression spring 63 becomes the tip push-down roller 56B of the release lever 56. Is applied with a rotation force in the counterclockwise direction, the pressing roller 56B is pressed against the bar receiving portion 59, and the release lever 56 is held in this release work position even after the operator's hand is released. .

  In the turning lock device 50, when the release lever 56 is positioned at the non-working position, the release bar 60 and the release plate 61 are positioned at the upper non-working position, as shown in FIGS. The lock pins 52 can be freely moved upward toward the lock plate 51 by the spring force of the compression springs 55 until the lower end engaging portions 52 </ b> A of the lock pins 52 come into contact with 61. On the other hand, when the release lever 56 is positioned at the release work position, the release bar 60 and the release plate 61 are positioned at the lower release work position, as shown in FIG. The lower end engaging portion 52A is pushed down, and the position of the lock pins 52 is restricted below the lock plate 51 against the spring force of the compression spring 55.

Hereinafter, the operation of the turning lock device 50 will be described.
(1) Rotation lock state (Fig. 8)
When the release lever 56 is positioned at the above-described non-working position and is placed in the notch recess 58 in the surface of the upper plate 43A and prone, the release bar 60 and the release plate 61 are positioned at the upper non-working position. Each lock pin 52 can be freely moved upward to each lock plate 51 by the spring force of the compression spring 55. Accordingly, each lock pin 52 is engaged with the corresponding lock hole 51A of each lock plate 51 to prevent the swing arm 40 from freely turning.

(2) Turning lock released (Fig. 9)
When the release lever 56 is positioned at the aforementioned release work position and pulled out from the notch recess 58 in the surface of the upper plate 43A, the release bar 60 and the release plate 61 are positioned at the lower release work position, and the front and rear locks The position of the pin 52 is restricted below each lock plate 51 against the spring force of the compression spring 55. Accordingly, each lock pin 52 is disengaged from the lock hole 51A of each lock plate 51, and the operator can freely swing the swing arm 40.

(3) Turning lock release end state (Fig. 10)
After the swing arm 40, which has been turned freely by releasing the turning lock in (2) above, is generally set at the lift point of the vehicle, the release lever 56 is again moved from the releasing work position in (2) to the non-working position in (1) above. The front and rear lock pins 52 can be moved upward to the lock plate 51 side by the spring force of the compression spring 55. As a result, each lock pin 52 is pressed against the lower surface of each lock plate 51, so that each lock pin 52 corresponds to each lock plate 51 as the operator finely adjusts the turning work position of the swing arm 40. Engage with the lock hole 51A. The swing arm 40 is correctly set at the lift point of the vehicle, and free swinging of the swing arm 40 is prevented. The left lock pin 52 is engaged with the corresponding lock hole 51A to lock the left swing arm 40 in a turning manner. The lock pin 52 on the right side of FIG. 10 is not yet engaged with the corresponding lock hole 51 </ b> A, but is engaged with the lock hole 51 </ b> A by fine adjustment of the swing arm 40.

  When the swing arm 40 is made to stand by at the standby position on the side of the sub-lift table 32, the swing lock device 50 is set to the above-described swing lock release state (2), and the swing arm 40 is turned by the arm bracket 43. Around the shaft 45, the turning is returned to the turning original position along the outside of the auxiliary lift table 32. Thereafter, the turning lock device 50 is set to the above-described turning lock release end state (3), and the front and rear lock pins 52 can be freely moved upward toward the lock plates 51 by the spring force of the compression springs 55. At this time, each lock pin 52 moves upward on the side of the outer side surface of the lock plate 51 fixed to the swing arm 40 at the turning original position, and the front end side portion of each lock pin 52 is located on the lock plate 51. Abutting on the outer side surface, the swing arm 40 and the lock plate 51 are pivotally locked at their pivotal positions.

According to the present embodiment, the following operational effects can be obtained.
(a) The operator operates the lock pin 52 through the release lever 56 that is switched between the non-work position and the release work position without directly operating the lock pin 52. Since the release lever 56 set at the release work position continues to regulate the position of the lock pin 52 below the lock plate 51 against the urging force of the compression spring 55, the operator releases the release lever 56. The swing arm 40 can be unlocked and turned with one hand.

  (b) When the release lever 56 is positioned at the non-working position, the release bar 60 and the release plate 61 are positioned at the upper non-working position, and the lower end engaging portion 52A of each lock pin 52 is placed on the upper release plate 61. The lock pins 52 can be freely moved upward to the lock plate 51 side by the urging force of the compression spring 55 until they abut, and when the release lever 56 is positioned at the release work position, the release bar 60 and the release plate 61 are Positioned at the lower release work position, the lower release plate 61 pushes down the lower end engaging portion 52A of each lock pin 52 so that the lock pin 52 is positioned below the lock plate 51 against the urging force of the compression spring 55. regulate. Therefore, the front and rear lock pins 52 can be simultaneously unlocked by an operation applied to only one release lever 56.

(B) Receiving device 70 (FIGS. 11-13)
The receiving device 70 is provided at the tip of each of the front and rear swing arms 40 and is set at a lift point of the vehicle.

  As shown in FIGS. 11 and 12, the receiving device 70 is provided with a cylindrical body 71 in the tip mounting hole 47 of the slide arm 40 </ b> B of the swing arm 40 and a cylindrical column 73 provided on the lower surface of the receiving device 72. A locking claw arm that is inserted into the body 71 so as to be movable up and down, has a plurality of saw teeth 74 formed on the outer periphery of the column 73, and the tip claw 75A engages with any one of the recesses 74A of the saw blade 74 of the column 73 by a spring force. 75 is provided on the cylinder 71. The latching claw arm 75 is swingably provided on the cylinder 71 via the support shaft 76, and the tip claw 75 </ b> A engages with the recess 74 </ b> A of the saw tooth 74 by the spring 77 provided around the support shaft 76. It is pressed toward. A spring pin 78 is provided on the side of the tip mounting hole 47 of the swing arm 40B, and the spring pin 78 is urged to the side hole of the cylindrical body 71 fitted in the tip mounting hole 47. By engaging and disengaging, the whole receiving device 70 including the cylindrical body 71 can be exchanged so as to correspond to the change of the applicable vehicle type.

  The support device 70 is supported by the support portion 71A on the inner periphery of the cylindrical body 71 so as to be movable up and down, and a sleeve 80 that guides the saw tooth 74 of the column 73 so as to be movable up and down is provided. 73 is interposed in an annular gap between the outer peripheries of 73. The sleeve 80 is provided with an insertion window 81 through which the locking claw arm 75 is inserted from the side of the cylinder 71 toward the saw tooth 74 of the support column 73 into and out of the saw tooth 74.

  The sleeve 80 is pulled out to the outside of the cylindrical body 71 with the lower end position (left in FIG. 11) inserted into the cylindrical body 71 and the remaining upper half part remaining inside the cylindrical body 71. It moves up and down while being supported by the support portion 71A on the inner periphery of the cylindrical body 71.

  The support column 73 is stored in the sleeve 80 (left side in FIG. 11), and a protruding end position in which the lower half is generally left inside the sleeve 80 and the remaining upper half projects outside the sleeve 80. (Right of FIG. 11), the tip claw 75A of the locking claw arm 75 is locked in turn in the respective recesses 74A of the saw tooth 74 while being supported by the guide hole 80A on the inner periphery of the sleeve 80. The

  Here, the sleeve 80 abuts against the cylinder 71 at the lower end position and is regulated to move downward, and an upper movement at which the sleeve 80 abuts against the cylinder 71 at the upper end position and is regulated upward. And a restriction stopper 82. The lower movement restricting stopper 81 includes a flange provided on the outer periphery of the upper end of the sleeve 80 and abuts on the upper end surface immediately above the support portion 71 </ b> A of the cylindrical body 71. The upper movement restricting stopper 82 includes a retaining ring that is engaged with the outer periphery of the lower end of the sleeve 80, and abuts on the lower end surface directly below the support portion 71 </ b> A of the cylindrical body 71.

  Further, the sleeve 80 is provided with a guide hole 80A for supporting the saw tooth 74 of the column 73 in sliding contact with the upper half, and a large diameter hole 80B into which the lower end stopper 73A having a larger diameter than the saw tooth 74 of the column 73 can enter. Prepare for the lower half. The lower end stopper 73A of the column 73 can be brought into contact with the stepped portion 80C at the boundary between the guide hole 80A and the large diameter hole 80B.

Hereinafter, the operation of the receiving device 70 will be described.
(1) The swing arm 40 is swung and expanded and contracted on the sub-lift table 32, the receiving device 72 of the receiving device 70 provided at the tip of the swing arm 40 is brought close to the lift point L of the vehicle, and the swing arm 40 is turned. The lock device 50 turns and locks the sub lift table 32 (FIG. 13A).

  At this time, the receiving device 70 is in a contracted state, the support column 73 of the receiving device 72 is positioned at the storage position with respect to the sleeve 80, and the sleeve 80 is positioned at the lower end position with respect to the cylindrical body 71.

  (2) Lift the receiving device 72 of the receiving device 70 by hand to bring it into a lifted state, and fit the upper surface groove 72A of the receiving device 72 to the lift point L (FIG. 13B). At this time, the sawtooth 74 of the support column 73 of the receiver 72 is rotatable with respect to the guide hole 80A of the sleeve 80 and the tip claw 75A of the locking claw arm 75, and the groove direction of the upper surface groove 72A of the receiver 72 is lift point. It can be fitted to L. By raising the main lift table 30 and the sub lift table 32, the vehicle body can be lifted up and the vehicle can be serviced.

  In the lifted state of the receiving device 70, the sleeve 80 is moved into the cylindrical body 71 until the lower end stopper 73A of the support column 73 of the receiving device 72 abuts the stepped portion 80C of the guide hole 80A of the sleeve 80 and the large diameter hole 80B. Only the support 72 and the support column 73 are moved upward with respect to the guide hole 80 </ b> A of the sleeve 80.

  Further, after the receiving device 70 is lifted, the lower end stopper 73A of the support column 73 of the support device 72 abuts against the guide hole 80A of the sleeve 80 and the stepped portion 80C of the large diameter hole 80B. Are integrated in the lifting direction of the receiver 72, and the receiver 72 and the column 73 are integrated with the sleeve 80 and moved upward relative to the support portion 71 </ b> A of the cylindrical body 71.

  In the process of the upward movement of the support 72 and the support column 73, the locking claw arm 75 is pushed back outwardly against the spring force of the spring 77 by the convex portions 74 </ b> B of the saw blade 74, and then the locking claw arm 75. Are sequentially engaged with the recesses 74 </ b> A of the saw-tooth 74 by the spring force of the spring 77. The front pawl 75 </ b> A of the locking pawl arm 75 abuts against the horizontal upper surface of each recess 74 </ b> A of the saw tooth 74 to prevent the support 72 and the column 73 from descending.

  (3) After the vehicle maintenance is completed, the auxiliary lift table 32 is lowered to the lowest position. Then, when the latching claw arm 75 is pushed against the spring force of the spring 77 and the tip claw 75A of the latching claw arm 75 is moved backward from the meshing position with the saw tooth 74, the support 72 is lowered by its own weight. (FIG. 13C). In the receiving device 70, the support column 73 is positioned at the storage position with respect to the sleeve 80, and the sleeve 80 is positioned at the lower end position with respect to the cylindrical body 71, and is in a contracted state.

According to the present embodiment, the following operational effects can be obtained.
(a) The receiving device 70 protrudes the support column 73 of the receiving device 72 from the sleeve 80 to the protruding end position, and further pulls out the receiving device 72 from the storage position when the sleeve 80 is pulled out from the cylindrical body 71 to the upper end position. Is the maximum withdrawal amount B. At this time, the support member 72 is supported by the guide hole 80A on the inner periphery of the sleeve 73 while leaving the lower half portion of the column 73 inside the sleeve 80, and the lower half portion of the sleeve 80 is left inside the cylindrical body 71. It is supported by a support portion 71A on the inner periphery. That is, the receiving device 72 can stably secure a certain amount of withdrawal while being stably supported by the support portion 71A on the inner periphery of the cylindrical body 71 via the sleeve 80.

  (b) In the support structure of the receiver 72 of the above-mentioned (a), the support column 73 of the receiver 72 is supported by the sleeve 80 only on the sawtooth 74, and does not extend a special supported portion 71A below the sawtooth 74. Therefore, the overall length of the receiver 72 can be shortened, and the storage height A of the receiver 72 can be reduced.

  (c) The sleeve 80 includes a downward movement restriction stopper 81 and an upward movement restriction stopper 82. Therefore, between the lower end position inserted into the cylindrical body 71 and the upper end position where the remaining upper half is pulled out of the cylindrical body 71 leaving the lower half part inside the cylindrical body 71, The sleeve 80 can be moved up and down while being supported by the support portion 71 </ b> A on the inner periphery of the cylindrical body 71.

  (d) The sleeve 80 is provided with a guide hole 80A that supports the saw tooth 74 of the support 73 in contact with the upper half, and has a large diameter hole 80B into which the lower end stopper 73A having a larger diameter than the saw tooth 74 of the support 73 can enter. The lower end stopper 73A of the column 73 can be brought into contact with a stepped portion 80C at the boundary between the guide hole 80A and the large diameter hole 80B. Accordingly, the support column 73 can be stored in the guide hole 80A and the large diameter hole 80B inside the sleeve 80 at the storage position. Further, the column 73 can be protruded to the outside of the sleeve 80 at the protruding end position while leaving the lower half portion of the guide hole 80A inside the sleeve 80 in general.

(C) Storage structure of the main lift table 30 and the sub lift table 32 in the pit 12 (FIGS. 1 to 5)
As shown in FIGS. 1 and 2, the vehicle lift device 10 stores a main lift table 30 that is lifted and lowered by the lifting device 20 in the pit 12 and sets the main lift table 30 at the same level as the floor surface 11. Then, the sub lift table 32 lifted and lowered on the main lift table 30 by the sub lift device 31 is stored in the plane of the main lift table 30, and the sub lift table 32 is set at the same level as the floor surface 11.

  As shown in FIGS. 1 and 2, the vehicle lift device 10 causes the swing arm 40 (guide arm 40 </ b> A, slide arm 40 </ b> B) to stand by at a standby position defined on the side of the auxiliary lift table 32, and the swing arm 40 is The pit 12 can be stored together with the lift table 30 and the auxiliary lift table 32. At this time, the vehicle lift device 10 sets the upper surface of the swing arm 40 to the same level as the floor surface 11.

  Further, the vehicle lift device 10 is configured such that the receiving device 70 provided at the tip of the swing arm 40 (slide arm 40B) is replaced with the upper surface of the swing arm 40 (the guide arm 40A) as shown in FIGS. The uppermost uppermost surface) is stored at a level below (upper surface with the upper surface of the swing arm 40 or lower than the upper surface of the swing arm 40, preferably with the upper surface of the swing arm 40). That is, when the receiving device 70 is set in the contracted state, the upper surface level of the receiving device 72 that is the uppermost element of the receiving device 70 is set to a level lower than the upper surface of the swing arm 40. Since the receiving device 70 can lower the storage height A of the receiving device 72 using the sleeve 80 described above, the upper surface level of the receiving device 72 can be easily set to a level below the upper surface of the swing arm 40.

According to the present embodiment, the following operational effects can be obtained.
(a) The receiving device 70 provided at the tip of the swing arm 40 was stored at a level below the upper surface of the swing arm 40. Therefore, the swing arm 40 is made to stand by at the side of the lift table 32, and the lift table 32 and the swing arm 40 are stored in the pit 12 provided on the floor surface 11 for automobile maintenance. When the upper surface is flush with the floor surface 11, the receiving device 70 at the tip of the swing arm 40 does not protrude above the floor surface 11 (FIG. 1B). The receiving device 70 does not obstruct the movement of the worker on the floor surface 11, traveling of the carriage, etc., and the working environment is improved.

  (b) The receiving device 70 protrudes the support column 73 of the receiving device 72 from the sleeve 80 to the protruding end position, and further pulls out the receiving device 72 from the storage position when the sleeve 80 is pulled out from the cylindrical body 71 to the upper end position. Is the maximum withdrawal amount B. At this time, the support member 72 is supported by the guide hole 80A on the inner periphery of the sleeve 73 while leaving the lower half portion of the column 73 inside the sleeve 80, and the lower half portion of the sleeve 80 is left inside the cylindrical body 71. It is supported by a support portion 71A on the inner periphery. That is, the receiving device 72 can stably secure a certain amount of withdrawal while being stably supported by the support portion 71A on the inner periphery of the cylindrical body 71 via the sleeve 80.

  (c) In the support structure of the receiver 72 of the above-mentioned (b), the support column 73 of the receiver 72 is supported by the sleeve 80 only with the sawtooth 74, and does not extend the special supported portion 71A below the sawtooth 74. Therefore, the overall length of the receiver 72 can be shortened, and the storage height A of the receiver 72 can be reduced. Thereby, the receiving device 70 provided at the tip of the swing arm 40 can be stored at a level below the upper surface of the swing arm 40.

  Further, the vehicle lift device 10 is configured so that the above-described turning lock device 50 for the swing arm 40 (guide arm 40A, slide arm 40B) is replaced with the upper surface (guide arm 40A) of the swing arm 40 as shown in FIGS. (The uppermost upper surface of the swing arm 40) or lower (lower than the upper surface of the swing arm 40, preferably flush with the upper surface of the swing arm 40). That is, the arm bracket 43 that supports the lock pin 52, the release lever 56, the release bar 60, and the like of the turning lock device 50, particularly the upper surface of the upper plate 43A, is set at the same level as the upper surface of the swing arm 40. When the release lever 56 that is the uppermost element of the turning lock device 50 is set to the release work position, the release lever 56 is pulled out from the notch recess 58 of the upper plate 43A and protrudes upward from the upper surface of the upper plate 43A. When the non-working position is set, the upper plate 43A is placed in the notch recess 58 and is prone in the upper surface of the upper plate 43A. Accordingly, all the elements including the release lever 56 of the turning lock device 50 are stored at a level below the upper surface of the upper plate 43A, in other words, at a level below the upper surface of the swing arm 40 that is at the same level as the upper surface of the upper plate 43A. .

According to the present embodiment, the following operational effects can be obtained.
(a) The turning lock device 50 attached to the swing arm 40 is stored at a level below the upper surface of the swing arm 40. Therefore, the swing arm 40 is made to stand by at the side of the lift table 32, and the lift table 32 and the swing arm 40 are stored in the pit 12 provided on the floor surface 11 for automobile maintenance. When the upper surface is flush with the floor surface 11, the turning lock device 50 attached to the swing arm 40 does not protrude above the floor surface 11 (FIG. 1B). The turning lock device 50 does not become an obstacle such as movement of the worker on the floor surface 11 and traveling of the carriage, and the working environment is improved.

  (b) The turning lock device 50 sets the release lever 56 to the release work position and unlocks the lock pin 52, and then moves the swing arm 40 from the turn work position on the lift table 32 to the side of the lift table 32. When returning to the standby position, the release lever 56 is switched to the non-working position. The release lever 56 switched to the non-working position is prone around the swing fulcrum and can be stored together with other members constituting the turning lock device 50 at a level below the upper surface of the swing arm 40.

  The embodiment of the present invention has been described in detail with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and even if there is a design change or the like without departing from the gist of the present invention. It is included in the present invention.

1A and 1B show a lift device for a vehicle. FIG. 1A is a side view showing a lift-up state of the lift table, and FIG. 1B is a side view showing a retracted state of the lift table. FIG. 2 is a plan view showing the vehicle lift device. FIG. 3 is a perspective view showing a swing arm standby state of the vehicle lift device. FIG. 4 is a perspective view showing a swing arm turning state of the vehicle lift device. FIG. 5 shows a swing arm, where (A) is a cross-sectional view and (B) is a plan view. FIG. 6 is a central sectional view showing the swing lock device of the swing arm. 7 is a sectional view taken along line VII-VII in FIG. FIG. 8 is a schematic view showing a non-working state of the turning lock device. FIG. 9 is a schematic view showing a release operation state of the turning lock device. FIG. 10 is a schematic diagram showing a release completion state of the turning lock device. FIG. 11 is a schematic diagram showing a swing arm receiving device. FIG. 12 is a plan view showing the receiving device. FIG. 13 is a schematic view showing a usage state of the receiving device.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Vehicle lift apparatus 20 Lifting apparatus 30 Main lift table 31 Sub lift apparatus 32 Sub lift table 40 Swing arm 43 Arm bracket 43B Lower plate (support plate)
45 Rotating shaft 50 Rotating lock device 51 Lock plate 51A Lock hole 52 Lock pin 52A Lower end engaging portion 55 Compression spring (biasing means)
56 Release lever 60 Release bar 61 Release plate

Claims (2)

A swing arm is attached to a lift table that is lifted and lowered by a lifting device, the swing arm is supported so as to be able to turn on the lift table, and the swinging state of the swing arm is locked at a turning work position determined on the lift table. In a vehicle lift device having a lock device,
Swivel lock device
A lock plate provided on one side of the lift table and the swing arm and having a plurality of lock holes located around the swing center of the swing arm;
A lock pin provided on the other side of the lift table and the swing arm, urged toward the lock plate side, and engages with one of the lock holes of the lock plate;
An urging means attached to the lock pin and urging the lock pin toward the lock plate;
It is provided on the other side of the lift table and the swing arm, and is switched between the non-working position and the release work position, and the biasing means is free to bias the lock pin in the non-working position and is attached in the release work position. A lift device for a vehicle comprising a release lever for restricting the position of the lock pin to the outside of the lock plate against the urging force of the urging means. The pivot axes of the swing arms of the front and rear are pivotally supported on the arm bracket on the lift table side,
Fix each of the front and rear lock plates to each of the front and rear swing arms,
The arm bracket supports the release lever so that it can swing, and supports the release bar inserted through the support plate of the arm bracket so that it can move up and down, and the release bar is positioned at the upper non-working position by the release lever in the non-working position. With the release lever in the release work position, position the release bar in the downward release work position,
Passing each of the release plate with the front and rear lock pins at the lower end of the release bar and the support plate of the arm bracket from below, allowing the lower end engaging part of each lock pin to abut the lower surface of the release plate, A biasing means for biasing the lock pin toward the lock plate is provided between the intermediate portion of each lock pin and the support plate,
When the release lever is positioned at the non-working position, the release bar and release plate are positioned at the upper non-working position, and the lock pins are attached until the lower end engaging portion of each lock pin abuts on the upper release plate. The urging force of the urging means can freely move upward to the lock plate side,
When the release lever is positioned at the release work position, the release bar and the release plate are positioned at the lower release work position, and the lower release plate pushes down the lower end engaging portion of each lock pin and biases the lock pins. The lift device for a vehicle according to claim 1, wherein the position of the lock plate is regulated below the lock plate against the urging force.

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