JP4545554B2 - Wheelchair entry / exit device - Google Patents

Description

  The present invention relates to a wheelchair getting on / off device for getting on and off a wheelchair.

  Conventionally, a vehicle provided with a wheelchair entry / exit device for facilitating a wheelchair user's boarding is known.

  The wheelchair getting-on / off device includes a pair of arms, and a wheelchair that is also used as a vehicle seat is fixed to the tip of the arms so that the wheelchair can be moved into the passenger compartment.

  However, such a wheelchair lifting apparatus is controlled to perform the same operation regardless of whether or not the wheelchair is fixed to the arm extended from the vehicle.

  The present invention has been made in view of such a conventional problem, and an object of the present invention is to provide a wheelchair getting-on / off device that can perform an operation suitable for the presence or absence of a wheelchair.

  In order to solve the above-described problem, in the wheelchair getting-on / off device of the present invention, a lock for fixing a wheelchair frame arranged on the lifting / lowering part to the lifting / lowering part that is lifted and lowered by the lifting / lowering mechanism between the rising and lowering positions A wheelchair getting-on / off device provided with a fixing mechanism that forms an unlocked state for releasing the state and the fixing of the frame, wherein a detaching position for fixing and releasing the wheelchair is set between the raised position and the lowered position The fixing process executed when moving the lifting part to which the wheelchair is fixed to the lowered position is performed when the lifting part reaches the detaching position after starting the lowering of the lifting part. Further, the wheelchair is constituted by a descent means for fixing after stopping the descent of the elevating part to bring the fixing mechanism into the unlocked state and then resuming the elevating part to the lowered position. The non-fixing process executed when the lifting unit that is not fixed is moved to the lowered position is configured by a non-fixing lowering unit that puts the fixing mechanism in the unlocked state while the lifting unit is being lowered. .

  That is, when the wheelchair is fixed to the lifting part when the lifting part lifted by the lifting mechanism is lowered to the lowered position, the fixing process is executed, while the wheelchair is fixed to the lifting part. If not, a non-fixed time process different from the fixed time process is executed.

  In the fixing process, when the lowered lifting part reaches the attachment / detachment position, the lowering of the lifting part is temporarily stopped and the fixing mechanism for fixing the wheelchair is unlocked. Thereby, the fixing release operation of the wheelchair is performed in a state stopped at the detaching position.

  Next, the descent of the elevating part to the lowered position is resumed. Thereby, since the said raising / lowering part leaves | separates below from the frame of a wheelchair, the movement from the said raising / lowering part of the said wheelchair is performed easily.

  On the other hand, in the non-fixing process, the fixing mechanism for fixing the wheelchair is unlocked while the elevating part is lowered to the lowered position. Thereby, the lowering operation of the elevating part and the unlocking operation of the fixing mechanism are performed simultaneously.

  As described above, in the wheelchair getting-on / off device of the present invention, when the elevating part is lowered, different processing is performed depending on whether the wheelchair is fixed to the elevating part or not. Can do.

  Thereby, the operation | movement suitable for the presence or absence state of a wheelchair can be performed.

  And when lowering the raising / lowering part to which the wheelchair was fixed, the lowered raising / lowering part is once stopped in the attachment / detachment position, and the fixing mechanism which fixes a wheelchair is made into an unlocked state. Thereby, the fixing release operation of the wheelchair can be performed in a state stopped at the detaching position.

  Next, by restarting the descent of the elevating part, the elevating part is moved downward from the frame of the wheelchair that has been released from the fixed state. For this reason, the movement from the said raising / lowering part of the said wheelchair can be performed easily.

  On the other hand, when lowering the lifting unit where the wheelchair is not fixed, the lowering operation of the lifting unit and the unlocking operation of the fixing mechanism can be performed simultaneously while lowering the lifting unit to the lowering position. it can.

  For this reason, compared with the case where the raising / lowering part which descend | falls is temporarily stopped in the said attachment / detachment position, and a fixing mechanism is made into an unlocked state, smooth operation | movement is realizable.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a view showing a wheelchair getting-on / off device 1 according to this embodiment. As shown in FIGS. 1 and 2, the wheelchair getting-on / off device 1 places a seat 2 constituting a rear seat in a rear compartment of a vehicle. The vehicle interior position 3 (see FIGS. 1 and 11) disposed in I and the vehicle interior position 4 (see FIG. 2) disposed outside the vehicle interior O can be displaced.

  The wheelchair entry / exit device 1 is fixed to a vehicle body via fixed rails 12, 12 provided on a floor 11 in the vicinity of the entrance / exit, and includes a slide mechanism that moves the seat 2 in the vehicle longitudinal direction, and the seat 2 includes A slide rotation unit 13 including a rotation mechanism that rotates between a state facing the vehicle front F and a state facing the entrance / exit is provided. The slide rotation unit 13 is provided with an elevating mechanism 14, and the elevating part 15 that supports the seat 2 by the elevating mechanism 14 is shown in the ascending position 16 as shown in FIG. Thus, it is configured to be able to move up and down between the lowered position 17. FIG. 1 shows a state in which the elevating unit 15 at the raised position 16 is rotated toward the vehicle front F by the slide rotating unit 13, and a seat back 111 described later is removed from the elevating unit 15. The state is shown.

  As shown in FIG. 2, the elevating mechanism 14 includes a lower arm 21 and an upper arm 22 that extend to the front side in a tilted state, and the distal ends of both arms 21 and 22 are support members that stand on the elevating unit 15. 24, 24. As a result, a lifting link 25 is formed by the arms 21 and 22 and the support member 24. By operating the lifting link 25, the lifting portion 15 disposed on the slide rotation unit 13 is moved. The elevator 15 is configured to be able to descend from the surface of the floor 11 by moving to the exterior O through the entrance / exit and rotating until the arms 21 and 22 are substantially horizontal. .

  As shown in FIG. 4, the elevating part 15 includes side members 31, 31 facing each other, and a front cross member 32, an intermediate cross member 33, and a rear cross member 34 that connect the members 31, 31. The support members 24 and 24 are tiltably provided on the side members 31 and 31 via reclining devices 35 and 35, respectively. Further, the side members 33, 33 are provided with tilt pins 36, 36 projecting laterally in the vicinity of the middle cross member 33. L-shaped L-shaped brackets 37 and 37 as contact portions are fixed to the front cross member 32, and the L-shaped brackets 37 and 37 extend forward.

  A guide plate 42 provided with guide portions 41, 41 as contact portions on both sides is fixed to the middle cross member 33, and a rear end portion of the guide plate 42 has an L-shaped release bracket. 48 is fixed with bolts 49. Between the front cross member 32 and the middle cross member 33, lower rails 43, 43 extending in the front-rear direction are fixed by bolts 44,. Are fixed to the leg slide portion 47 by bolts 46...

  As shown in FIGS. 4 and 5, a slide drive unit 51 is provided on the back surface of the elevating unit 15. The slide drive unit 51 applies a rotational force from the drive motor 52 to the ball screws 53 and 53. A pair of fixed blocks 54 and 54 for transmission and nut blocks 55 and 55 screwed into the respective ball screws 53 and 53 are constituted. The fixed blocks 54, 54 are fixed by nuts 58,... In a state where stud bolts 56, 56 erected are inserted through bolt holes 57,... Provided in the front cross member 32. The nut blocks 55 and 55 are fixed to the leg slide portion 47 with bolts 58 and so on. Accordingly, the leg slide portion 47 can be moved back and forth with respect to the elevating portion 15 by driving the motor 52.

  The leg slide portion 47 is formed in a rectangular plate shape as shown in FIGS. 4 and 6, and a bent portion 61 bent obliquely downward is formed at the front end portion thereof. A locking flange 62 extending downward is formed at the end of 61. The leg slide portion 47 is configured such that a seat cushion 63 as shown in FIG. 7 can be detachably attached, and the front end portion of the seat cushion 63 is attached to the leg slide portion 47 in the state of being attached to the leg slide portion 47. A hook 64 having an L-shaped cross section that is locked to the locking flange 62 is provided. 2 and 3, the seat cushion 63 is detached from the leg slide portion 47, and the seat cushion 63 is attached to the leg slide portion 47 as shown in FIG. The seat 2 is formed so as to form an attached state.

  As shown in FIG. 4, L-shaped tongue pieces 71, 71 extend forward from both sides of the tip of the leg slide portion 47. A shaft 72 is provided between the tongue pieces 71 and 71, and front lock claws 73 and 73 are provided at both ends of the shaft 72. A notch 74 as an arcuate engagement portion is formed at the free end on one end side of the front lock claw 73. Accordingly, as shown in FIG. 9, one end side provided with the notch 74 protrudes upward from the leg slide portion 47 and constitutes a frame 76 of the wheelchair 75 disposed on the leg slide portion 47. The front pipe 77 is configured to engage with the notch 74 to form a locked state 78 for fixing the wheelchair 75.

  Further, as shown in FIG. 4, a coil spring 82 as an urging means is provided between the fixed plate 81 fixed to the tongue pieces 71 and 71 and the shaft 72, and the leg slide When the portion 47 is moved to the front side with respect to the lifting / lowering portion 15, the front lock claws 73, 73 are urged in the rotational direction by the coil spring 82, and as shown in FIG. An unlocked state 79 in which a free end portion on one end side provided with 74, 74 is disposed at a lower position than the leg slide portion 47 and extends to the front side to release the fixation of the frame 76 of the wheelchair 75 can be formed. It is configured. At this time, the free end portions on the other end side of the front lock claws 73, 73 are configured to be prevented from rotating in a state where they are in contact with the lower surface of the leg slide portion 47.

  Further, as shown in FIG. 4, rear lock claws 91, 91 are rotatably attached to the rear end portion of the leg slide portion 47 via L-shaped brackets 92, 92. The portion 47 is formed with slits 93 and 93 through which the rear lock claws 91 and 91 enter and exit. Notch portions 94 and 94 as arcuate engagement portions are also formed at the free end portions on one end side of the rear lock claws 91 and 91 so that the rear pipe constituting the frame 76 of the wheelchair 75 can be held. (Not shown).

  Coil springs 95, 95 as urging members are provided between the rear lock claws 91, 91 and the L-shaped brackets 92, 92, and the leg slide portion 47 is attached to the lift unit 15. 3, the rear lock claws 91, 91 are urged in the rotational direction by the coil springs 95, 95, and as shown in FIG. 3, one end provided with the notches 94, 94. The unlocked state 96 in which the frame 76 of the wheelchair 75 is released can be formed by the side free end portion being positioned on the lower surface of the leg slide portion 47.

  As shown in FIG. 4, rollers 97 are provided at the other free end of the rear lock claws 91, 91 so as to be rotatable, and the leg slide part 47 is attached to the elevating part 15. On the other hand, when the roller 97 moves to the rear side, the rollers 97 and 97 are configured to abut against the guide portions 41 and 41 of the guide plate 42 and roll. Accordingly, as shown in FIG. 10, one end side where the notch 94 is provided protrudes upward from the leg slide portion 47, and the frame 76 of the wheelchair 75 disposed on the leg slide portion 47 is moved. The rear pipe to be configured is configured to be able to form a lock state 98 for engaging the notch portion 94 and fixing the wheelchair 75.

  Accordingly, when the leg slide portion 47 is slid rearward with respect to the elevating / lowering portion 15 by the slide drive portion 51, the front lock claws 73, 73 as shown in FIGS. The other free end of the second abutting portion abuts on L-shaped brackets 37, 37 provided on the front cross member 32 of the elevating part 15 (see FIG. 10), so that the one free end provided with the notches 74, 74 is provided. The wheelchair 75 is configured to be fixed in a state where the end portion stands and tilts rearward and the front pipe 77 of the wheelchair 75 is held in the notches 74 and 74. In the rear lock claws 91, 91, the rollers 97, 97 provided at the other free end abut against the guide portions 41, 41 of the guide plate 42 provided at the middle cross member 33 and roll. As a result, the one free end provided with the notches 94 and 94 stands up and tilts backward, and the notch portions 94 and 94 hold the rear pipe constituting the frame 76 of the wheelchair 75. Thus, the wheelchair 75 can be fixed. Thereby, the raising / lowering part 15 is formed with a fixing mechanism 101 for detachably fixing the wheelchair 75 arranged on the raising / lowering part 15 when the cushion is detached.

  As shown in FIGS. 2 and 3, the seat back 111 is fixed between the support members 24, 24 provided in the elevating unit 15. The seat back 111 is formed to have a predetermined rigidity and is designed to satisfy vehicle strength requirements. Further, as shown in FIGS. 9 and 11, the seat back 111 is a cloth backrest that is bridged to the left and right standing pipes 112, 112 of the wheelchair 75 in a state where the wheelchair 75 is fixed to the elevating part 15. The rear portion 113 is provided at a position extending along the backrest 113.

  The wheelchair getting-on / off device 1 includes a control device (not shown), and when a lowering switch operation is performed, by driving a drive motor provided in each part (not shown), FIG. As shown in FIG. 2, the elevating unit 15 disposed in the vehicle interior position 3 is rotated to the entrance / exit side by the slide rotation unit 13 while maintaining the height at the upper position 16, as shown in FIG. The elevator mechanism 14 is configured to move down to the detachment position 121 while moving to the outside O of the vehicle compartment, and further move down to the lower position 17 and stop as shown in FIG.

  Further, when the raising switch operation is performed, by driving the driving motor of each part, the raising / lowering part 15 at the lower position 17 is raised by the raising / lowering mechanism 14, and as shown in FIG. It is configured so that it can be moved to the position 121 and further moved to the upper position 16 by driving the elevating mechanism 14 and moved to the slide rotation unit 13 while moving the elevating part 15 to the vehicle interior I. As shown in FIG. 1, the slide rotating unit 13 is configured to be able to rotate the elevating part 15 facing the entrance / exit side toward the front F of the vehicle.

  At the detaching position 17, by sliding the leg slide portion 47 to the rear side or the front side, the lock claws 73, 73, 91, 91 of the fixing mechanism 101 are locked to the locked state 78, 98 or the unlocked state. In the states 79 and 96, the frame 76 of the wheelchair 75 on the leg slide portion 47 can be fixed or released.

  The operation of the present embodiment according to the above configuration will be described with reference to the flowcharts of FIGS. 12 and 13 executed by the control device.

  That is, when the lowering switch operation is performed (S1), the elevating unit 15 is moved to the origin position by the slide rotating unit 13 (S2), and the sliding and turning of the elevating unit 15 toward the entrance / exit side is performed. Start (S3). When the rotation is completed (S4), the state of the leg slide portion 47 is determined (S5).

  As a determination method, a seat cushion 63 is attached to the leg slide portion 47 by a switch (not shown) provided on the leg slide portion 47, the wheelchair 75 is fixed, or the wheelchair 75 is not fixed. Determine whether. Alternatively, whether the operation is performed when the seat cushion 63 is attached by the switch in which the switch is input, the operation when the wheelchair 75 is fixed, or the operation when the wheelchair 75 is not fixed Judging.

  In this determination, when it is determined that the wheelchair 75 is not fixed to the leg slide portion 47, the elevating mechanism 14 starts to be lowered by the elevating mechanism 14 (S <b> 6), and the leg driving portion 51 is operated by the slide drive unit 51. 47 starts to slide to the front side (S7), and moves the leg slide portion 47 to the front end (S8). At this time, the movement time to the front end of the leg slide portion 47 is set to be shorter than the time for moving the elevating unit 15 at the upper position 16 to the lower position 17, so that the elevating unit 15 is at the lower position 17. It is determined whether or not an intermediate switch B (not shown) provided in the elevating mechanism 14 is actuated (S9), and the elevating part 15 reaches the lower position 17 and the intermediate switch B is actuated. At that time, the descent of the elevating unit 15 is stopped (S10), and the descent operation is finished.

  Thereby, when the wheelchair 75 is not fixed to the leg slide part 47, the fixing mechanism 101 for fixing the wheelchair is unlocked while the elevating part 15 is lowered to the lowered position 17. The lowering operation of the elevating part 15 and the unlocking operation of the fixing mechanism 101 are performed simultaneously.

  If it is determined in step S5 that the wheelchair 75 is fixed to the leg slide portion 47, the elevating mechanism 15 starts to descend by the elevating mechanism 14 (S11), and the elevating unit 15 Determines whether or not an intermediate switch A (not shown) provided in the elevating mechanism 14 is actuated by reaching the detaching position 121 (S12), and the elevating part 15 reaches the detaching position 121 and the intermediate switch When A operates, the descent of the elevating part 15 is temporarily stopped (S13).

  In this stop state, the slide drive unit 51 starts to slide the leg slide unit 47 forward (S14), and moves the leg slide unit 47 to the front end (S15). Then, the lock claws 73, 73, 91, 91 of the fixing mechanism 101 that fixes the frame 76 of the wheelchair 75 are changed from the locked state 78, 98 to the unlocked state 79, 96, and thus the wheelchair 75 on the leg slide portion 47. The fixed state of the frame 76 is released. Thereby, the fixing release operation of the wheelchair 75 is performed in a state where the wheelchair 75 is stopped at the detaching position 121.

  Then, the lifting and lowering mechanism 14 resumes the lowering of the lifting and lowering portion 15 (S16), determines whether or not the intermediate switch B operates (S9), and the lifting and lowering portion 15 reaches the lower position 17 When the intermediate switch B is activated, the lowering of the elevating unit 15 is stopped (S10), and the lowering operation is finished. Thereby, since the said raising / lowering part 15 leaves | separates below from the flame | frame 76 of the said wheelchair 75, the movement from the said raising / lowering part 15 of the said wheelchair 75 is performed easily.

  Furthermore, when it is determined in step S5 that the seat cushion 63 is attached to the leg slide portion 47, after the elevating mechanism 15 starts to descend by the elevating mechanism 14 (S17), It is determined whether or not the intermediate switch B is activated (S9). When the elevating part 15 reaches the lower position 17 and the intermediate switch B is activated, the lowering of the elevating part 15 is stopped. (S10), the descending operation is terminated.

  As described above, when the wheelchair 75 is fixed to the elevator 15 when the elevator 15 is lowered, the wheelchair 75 is not fixed, and the seat cushion 63 is fixed. , Different processing can be performed. Thereby, the operation | movement suitable for the presence or absence of the wheelchair 75 or the presence or absence of the seat cushion 63 can be performed.

  When the elevator 15 to which the wheelchair 75 is fixed is lowered, the lowered elevator 15 is temporarily stopped at the attachment / detachment position 121, and the fixing mechanism 101 for fixing the wheelchair 75 is brought into an unlocked state. Thereby, the fixation release operation of the wheelchair 75 can be performed in a state where the wheelchair 75 is stopped at the detachment position 121.

  Next, by restarting the lowering of the elevating unit 15, the elevating unit 15 moves downward from the frame 76 of the wheelchair 75 that has been released from the fixed state. For this reason, the wheelchair 75 can be easily moved from the elevating part 15.

  On the other hand, when lowering the lifting unit 15 to which the wheelchair 75 is not fixed, while the lifting unit 15 is lowered to the lowering position 17, the lowering operation of the lifting unit 15 and the unlocking operation of the fixing mechanism 101 are performed. Can be performed simultaneously. For this reason, compared with the case where the raising / lowering part 15 which descend | falls is temporarily stopped in the said attachment / detachment position 121, and the fixing mechanism 101 is made into an unlocked state, smooth operation | movement can be implement | achieved.

  Further, when the seat cushion 63 is attached to the elevating part 15, the operation of the fixing mechanism 101 can be omitted.

  As shown in FIG. 13, when the raising switch is operated (SB1), the leg rear end switch (not shown) for determining whether or not the leg slide portion 47 is at the rear end is OFF. It is determined whether or not there is (SB2). When the leg slide portion 47 is moved forward to bring the fixing mechanism 101 into an unlocked state, that is, when the wheelchair 75 is fixed to the leg slide portion 47 or when the wheelchair 75 is not fixed. Since the leg rear end switch is turned off, the elevating mechanism 15 starts to be raised by the elevating mechanism 14 (SB3), and after the intermediate switch B is confirmed to operate (SB4), the intermediate switch A is activated. It is determined whether or not to perform (SB5). When the lift 15 reaches the detaching position 121 and the intermediate switch A is actuated, the upper surface of the leg slide portion 47 contacts the frame 76 of the wheelchair 75, and the wheelchair 75 is brought into contact with the leg slide portion 47. Since it is in the placed state, the ascending / descending portion 15 is temporarily stopped from rising (SB6).

  In this stop state, the slide drive unit 51 starts sliding to the rear side of the leg slide unit 47 (SB7), and moves the leg slide unit 47 to the rear end (SB8). Then, the lock claws 73, 73, 91, 91 of the fixing mechanism 101 provided in the elevating unit 15 are changed from the unlocked state 79, 96 to the locked state 78, 98, and thus the wheelchair 75 on the leg slide unit 47. The frame 76 is fixed by the fixing mechanism 101. Thereby, the fixing operation of the wheelchair 75 is performed in a state where the wheelchair 75 is stopped at the detaching position 121.

  Then, the raising / lowering unit 15 is lifted again by the raising / lowering mechanism 14 (SB9), and the raising / lowering unit 15 continues to rise until an unillustrated ascent limit switch is activated (SB10). . When the ascending / descending portion 15 reaches the upper position 16 and the ascent limit switch is actuated, the ascending / descending portion 15 in the state of facing the entrance / exit is rotated by the slide rotation unit 13 (SB11) and slid. Return to the origin position and stop (SB12).

  On the other hand, when it is determined in step SB2 that the leg rear end switch is ON and the leg slide portion 47 is not at the rear end, that is, when the seat cushion 63 is fixed to the leg slide portion 47. After the elevating part 15 starts to be raised by the elevating mechanism 14 (SB13), the process branches to step SB10 and rises until the elevating part 15 reaches the upper position 16, and is then rotated by the slide rotating unit 13. It moves (SB11), slides back to the original position and stops (SB12).

It is a perspective view which shows one embodiment of this invention. It is a perspective view which shows the state by which the raising / lowering part of the embodiment was moved to the attachment / detachment position. It is a perspective view which shows the state by which the raising / lowering part of the embodiment was moved to the lower position. It is a disassembled perspective view which shows the raising / lowering part of the embodiment. It is a perspective view which shows the state which looked at the raising / lowering part of the embodiment from the back surface. It is a perspective view which shows the raising / lowering part of the embodiment. It is a perspective view which shows the seat cushion of the embodiment. It is a perspective view which shows the state by which the seat cushion was attached to the raising / lowering part of the embodiment. It is a perspective view which shows the state by which the wheelchair was attached to the raising / lowering part of the embodiment. It is a perspective view which shows the state which removed the slide part from the raising / lowering part of the embodiment. It is a perspective view which shows the state which has arrange | positioned the raising / lowering part of the embodiment in the vehicle interior position. It is a flowchart which shows the operation | movement of the descent | fall process of the embodiment. It is a flowchart which shows the operation | movement of the raise process of the embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wheelchair getting on / off device 14 Lifting mechanism 15 Lifting part 16 Upper position 17 Lower position 47 Leg slide part 75 Wheelchair 76 Frame 78 Locked state 79 Unlocked state 96 Unlocked state 98 Locked state 101 Fixing mechanism

Claims (1)

Fixing that forms a locked state for fixing a frame of a wheelchair disposed on the lifting unit and an unlocked state for releasing the fixing of the frame at a lifting unit that is lifted and lowered between a raised position and a lowered position by a lifting mechanism A wheelchair boarding / alighting device in which a mechanism is provided and a detaching position for fixing and releasing the wheelchair is set between the raised position and the lowered position,
When the lifting unit to which the wheelchair is fixed is moved to the lowered position, the fixing process is performed when the lifting unit reaches the detaching position after starting the lowering of the lifting unit. While configured to comprise a descent means at the time of fixing that resumes the descent of the elevating part to the lowered position after stopping the descent of the elevating part and bringing the fixing mechanism into the unlocked state,
Non-fixing lowering means for setting the fixing mechanism to the unlocked state while lowering the lifting unit, the non-fixing processing executed when the lifting unit to which the wheelchair is not fixed is moved to the lowered position. A wheelchair boarding / exiting device characterized by comprising.

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