JP2006137320A - Slope structure of vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide slope structure of a vehicle capable of restricting a sudden turn when expanding even in the case of a slope having a large turning angle and capable of reducing the operating force to be required for housing. <P>SOLUTION: This structure has a slope 21, of which one end side is turnably supported by a turning shaft 30 provided on a lower edge side of an opening formed in a side part or a rear part of a car body and of which the other end side is turned to move outside the vehicle from housing condition housed along the opening part. A torsion bar 65, of which one end side is locked with a turning shaft 30 side of the slope 21 and of which the other end side is locked with a turning shaft 30 side of the car body, is provided to generate energizing force in a direction for returning the slope 21 to the housing condition when the slope 21 is turned from the housing condition. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a vehicle slope structure for facilitating raising and lowering of a wheelchair to a vehicle.

  In order to facilitate the raising and lowering of the wheelchair to the vehicle, a slope is provided so as to be rotatable at the opening at the rear of the vehicle. With regard to such a slope structure, a first gate member whose one end is rotatably supported on a rotation shaft on the lower edge side of the opening, and a first gate member rotatably provided on the other end of the first gate member. The first gate member is rotated outwardly from the retracted state in which the first gate member is erected so that the distal end is located below the base end, and the second gate member is moved outward. There is one in which a slope is formed by rotating the lens (Patent Document 1). The slope structure disclosed in Patent Document 1 has a problem that the opening / closing operation is not easy because the structure does not assist the opening / closing force of the first gate member on the base end side.

On the other hand, there is a vehicle slope structure in which the slope plate along the horizontal is slid with respect to the vehicle body, protrudes to the side, and pivots so as to lower the tip side. In this slope structure, the tip when the slope plate is extended A coil spring is provided between the vehicle body and the slope plate in order to suppress the sudden lowering of the side, and the slope plate is urged in the pulling direction by this coil spring (Patent Document 2). With this structure, the slope plate is urged in the pulling direction, so that the tip side rise during storage, that is, the force required for storage, can be reduced.
JP 7-179182 A JP 2002-19525 A

  However, the one using a coil spring can be applied when the rotation angle of the slope plate is small as shown in Patent Document 2 because the stroke region where the urging force can be generated is relatively short. In the case where the rotation angle is large as in Patent Document 1, there is a problem that application is difficult.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a vehicle slope structure capable of suppressing a rapid rotation during deployment and reducing an operation force required for storage even when a slope has a large rotation angle.

  In order to achieve the above-described object, the invention according to claim 1 is directed to the rotation of the lower edge side of the opening (for example, the opening 14 in the embodiment) formed in the side or the rear of the vehicle body (for example, the vehicle body 12 in the embodiment). A slope (for example, the embodiment) that is rotatably supported on one end side by a moving shaft (for example, the rotation shaft 30 in the embodiment) and that the other end side moves to the vehicle outer side from the retracted state along the opening. In the vehicle slope structure having the slope 21), the one end side is locked to the rotating shaft side of the slope and the other end side is locked to the rotating shaft side of the vehicle body, and the slope is from the retracted state. A torsion bar (for example, a torsion bar 65 in the embodiment) that generates an urging force in a direction to return the slope to the retracted state when rotated is provided. That.

  The invention according to claim 2 is the plate according to claim 1, wherein one edge portion is rotatably supported by the slope and the other edge side is movable on the vehicle body floor (for example, a slide plate in the embodiment) 84) covering the torsion bar.

  According to the first aspect of the present invention, the slope is retracted by using the torsion bar and locking one end of the torsion bar to the rotating shaft side of the slope and the other edge side to the rotating shaft side of the vehicle body. Since the urging force is generated in the direction to return it to the retracted state when it is rotated from the state, it can be urged in the direction to return to the retracted state even if the slope has a large rotation angle. Can be prevented and the operation force required for storage can be reduced. In addition, since the torsion bar is provided on the rotating shaft side, which is the connection side of the slope and the vehicle body, it can be disposed compactly.

  According to the second aspect of the present invention, when the slope in the retracted state is rotated, the plate having one edge portion rotatably supported by the slope and the other end side movably provided on the vehicle body floor is the slope. On the other hand, it moves on the vehicle floor while rotating and maintains the state where the torsion bar is covered. Therefore, the torsion bar can be covered with the plate, and the appearance is improved.

A vehicle slope structure according to an embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a vehicle 11 to which the slope structure of the present embodiment is applied, and the rear portion of the vehicle body 12 is opened and closed by a tailgate 13 that rotates about an axis along the vehicle width direction. An opening 14 is formed. As shown in FIG. 2, the opening 14 opens to the lower position of the rear bumper 16, and as a result, the outer division that forms the side portion of the rear bumper 16 on both outer sides of the lower portion of the opening 14 in the vehicle width direction. Each body 17 is arranged.

  The opening 14 has a substantially plate shape as a whole, and the upper end side in the retracted state extends from the storage state shown in FIG. 1 along the opening 14 substantially perpendicular to the vehicle longitudinal direction. A slope 21 is provided that turns to move backward and connects the vehicle body floor 19 and the ground 20 to the unfolded state shown in FIG. Here, the slope 21 has a front slope plate 23 disposed on the front side in the vehicle front-rear direction and a rear slope plate 24 disposed on the rear side in the vehicle front-rear direction in the unfolded state, and the front slope plate 23 is opened. The rear slope plate 24 extends rearward and downward to the ground 20 so as to extend rearward and downward from the portion 14 and to be continuous with the rearward portion. Further, in the retracted state, the slope 21 extends upward from the lower end side of the opening 14 in a posture in which the front slope plate 23 is substantially orthogonal to the vehicle front-rear direction, and as shown in FIG. In a posture substantially orthogonal to the direction, the vehicle is extended downward from the upper end of the front slope plate 23 so as to overlap the front slope plate 23 on the front side of the front slope plate 23 in the vehicle front-rear direction.

  As shown in FIG. 2, mounting brackets 28 are bolted to mounting portions 27 in the vicinity of the lower edge portions on both sides in the vehicle width direction of the opening 14 of the vehicle body 12, and as shown in FIG. Rotating shafts 30 are respectively attached to the brackets 28 along the vehicle width direction. And the slope 21 is supported by these rotating shafts 30 so that rotation is possible. In other words, the slope 21 is rotatably supported at one end side by a rotating shaft 30 on the lower edge side of the opening 14 formed at the rear part of the vehicle body 12, and the other end side from the retracted state along the opening 14 is outside the vehicle. Rotate to move.

  The slope 21 includes a pair of support brackets 33 that are rotatably supported by the respective rotation shafts 30, a lower gate panel 34 that is fixed to the support brackets 33 so as to connect the support brackets 33 and that is long in the vehicle width direction, A center divided body 35 of the rear bumper 16 is provided on one side of the lower gate panel 34 so as to cover the lower gate panel 34. As shown in FIG. 1, when in the retracted state, the central divided body 35 is in a state of being continuous with the outer divided bodies 17 on both sides in the vehicle width direction and constitutes the rear bumper 16.

  As shown in FIGS. 4 and 5, the lower gate panel 34 is formed with a raised portion 37 that rises in the thickness direction with respect to the substrate portion 36 in the peripheral portion in the middle predetermined range. A top plate portion 38 that is the top portion of the top plate portion 38 that is substantially parallel to the substrate portion 36, a lower plate portion 39 that connects the edge portion of the top plate portion 38 on the rotating shaft 30 side and the substrate portion 36, and a vehicle of the top plate portion 38 1 has a pair of side plate portions 40 connecting the edge portions on both sides in the width direction and the substrate portion 36, and an upper plate portion 41 shown in FIG. 1 opposite to the lower plate portion 39 of the top plate portion 38. In the part 36, it bolts to each support bracket 33, respectively.

  The front slope plate 23 of the slope 21 has a substantially plate shape, and is on the top plate portion 38 of the raised portion 37 of the lower gate panel 34 along the top plate portion 38 and on the opposite side from the top plate portion 38 to the rotation shaft 30. It is fixed to extend. The rear slope plate 24 is rotatably connected to the opposite side of the front slope plate 23 from the rotation shaft 30.

  The front slope plate 23 is a flat board portion 46 screwed to the top plate portion 38 of the raised portion 37 of the lower gate panel 34, and the board portion 46 from the edge portions on both sides in the vehicle width direction to the board portion 46. It has a pair of upright plate portions 47 that vertically rise on the side opposite to the lower gate panel 34.

  The front slope plate 23 is further fixed to the lower gate panel 34 by a pair of reinforcing plates 50 on both sides in the vehicle width direction. In other words, each reinforcing plate 50 is bolted to the corresponding one side plate portion 40 of the lower gate panel 34 and the vertical plate portion 47 of the front slope plate 23 on the same side as the one side plate portion 40 in the vehicle width direction. It is screwed to. Note that a non-slip sheet 54 is attached to a surface of the front slope plate 23 on the protruding side of the standing plate portion 47 of the base plate portion 46 to prevent the guided wheelchair from slipping.

  Further, leg portions 57 are attached via attachment members 58 at positions farthest from the rotation shaft 30 on both sides in the vehicle width direction of the front slope plate 23 so as to protrude to the opposite side of the standing plate portion 47. . These leg portions 57 abut against the ground 20 and maintain the state when the front slope plate 23 is rotated rearward in the vehicle front-rear direction around the rotation shaft 30 and is in a deployed state. In addition, when it is in the unfolded state, the front slope plate 23 is inclined backward and downward as described above.

  As shown in FIG. 1, a striker 60 for locking the tailgate 13 in the closed state is fixed to the upper plate portion 41 of the lower gate panel 34, and the upper plate portion 41 and the front slope plate 23 are fixed to the upper plate portion 41. A reinforcing plate 61 having an L-shaped cross section is fixed so as to extend across the striker 60 to both sides in the vehicle width direction. The reinforcing plate 61 is welded to the front slope plate 23 and is bolted to the upper plate portion 41.

  Here, the mounting portion 27 (see FIG. 6) on one side in the vehicle width direction of the vehicle body 12 to which the mounting bracket 28 for one rotating shaft 30 is mounted, the vehicle width direction and the like of the lower plate portion 39 of the lower gate panel 34, etc. As shown in FIGS. 4 and 5, a torsion bar 65 is installed on the side, and similarly, the mounting portion 27 on the other side in the vehicle width direction and the vehicle width direction of the lower plate portion 39 of the lower gate panel 34. A torsion bar 65 is also erected on one side.

  Each torsion bar 65 includes a central base portion 66, rising shaft portions 67 and 68 that rise substantially vertically from both ends of the base shaft portion 66, and a base shaft portion 66 from the opposite side of the base shaft portion 66 of one rising shaft portion 67. The inner shaft portion 69 extends inward so as to be parallel to each other, and the upper shaft portions 67 and 68 are located on the substantially same side with respect to the base shaft portion 66 in a state where no twisting force is input. . Then, as shown in FIG. 5, the vertical shaft 68 on one side is rotated by the mounting member 72 bolted to the mounting portion 27 provided in the vicinity of the rotating shaft 30 of the vehicle body 12 as shown in FIG. The upright shaft portion 68 side of the base shaft portion 66 is also non-rotatably locked to a mounting member 73 that is bolted to the mounting portion 27 on the vehicle body 12 side.

  Further, each torsion bar 65 is attached to a mounting member 74 that is bolted to a lower plate portion 39 in the lower gate panel 34 in the vicinity of the rotation shaft 30, on the vertical shaft portion 67 side of the vertical shaft portion 67 and the base shaft portion 66. And the inner side shaft part 69 is latched so that rotation is impossible. That is, one end side of the torsion bar 65 is locked to the lower plate portion 39 on the rotating shaft 30 side of the slope 21, and the other end side is locked to the mounting portion 27 on the rotating shaft 30 side of the vehicle body 12.

  Here, when the slope 21 is in the retracted state, the lower gate panel 34 of the lower gate panel 34 comes close to the mounting portion 27 in the vehicle front-rear direction. As indicated by the dotted line, the compatible upper shaft portions 67 and 68 are close to each other in the vehicle longitudinal direction. In addition, when the slope 21 is rotated to the outside of the vehicle body from the retracted state, the lower gate panel 34 is separated from the mounting portion 27 in the vehicle front-rear direction while the lower plate portion 39 is rotated. Is a state in which the compatible upper shaft portions 67 and 68 are separated from each other in the vehicle front-rear direction as shown by a solid line in FIG. 5 and generates a biasing force in the return direction. That is, both the torsion bars 65 generate a biasing force in a direction to return the slope 21 to the retracted state when the slope 21 rotates from the retracted state.

  A pair of hinges 77 are attached to the top plate portion 38 side of the lower plate portion 39 of the lower gate panel 34 so as to be separated in the vehicle width direction. Each hinge 77 has a pair of mounting plates 79 and 80 that rotate relative to each other about a hinge shaft 78. The hinge shaft 78 is positioned in the vehicle width direction and in the vicinity of the top plate portion 38. The attachment plate 79 is attached to the lower plate portion 39. A slide plate (plate) 84 having a long rectangular shape along the vehicle width direction is attached to the other attachment plate 80 of both hinges 77 at one edge thereof. The slide plate 84 is a pair of flat board portions 85 fixed to the mounting plates 80 of the hinges 77 and a pair of the board portions 85 that rise vertically upward from the edge portions on both sides in the vehicle width direction of the board portions 85. The standing plate portion 86 is provided.

  Support shafts 90 along the vehicle width direction are provided below the slide plate 84 via attachment members 83 on both sides in the vehicle width direction of the front and rear direction front end of the slide plate 84 on the other edge side. A roller 91 is rotatably supported on the support shaft 90 so as to protrude downward from the slide plate 84. The other edge side of the slide plate 84 is placed on the vehicle body floor 19 by these rollers 91. The slide plate 84 has a longitudinal length that allows the roller 91 to be always positioned on the vehicle body floor 19 regardless of the rotation position of the slope 21, and connects the slope 21 and the vehicle body floor 19. The torsion bars 65 are always covered on the upper side.

  Here, as shown in FIG. 7, the vehicle body floor 19 is formed with guide grooves 92 for allowing the rollers 91 to enter when the rollers 91 move rearward in the vehicle front-rear direction. Each guide groove 92 extends along the vehicle front-rear direction and has a shape that is recessed downward from the upper surface of the vehicle body floor 19. The depth of the rear portion is the length from the lower surface of the slide plate 84 to the lower end of the roller 91. Deeper than that. When the front slope plate 23 of the slope 21 rotates in the direction from the retracted state indicated by the two-dot chain line in FIG. 7 to the expanded state indicated by the solid line, the slide plate 84 rotates while rotating relative to the front slope plate 23 of the slope 21. At the stage before the front slope plate 23 is unfolded, the front roller 91 is lowered along the guide groove 92 and the other edge side is lowered. To be close to the upper surface of the vehicle body floor 19. When the front slope plate 23 finally rotates to the unfolded state in which the leg portion 57 comes into contact with the ground 20, the slide plate 84 is placed on the upper surface of the vehicle body floor 19 to guide the roller 91. As a result of being separated from the groove 92, the step with the upper surface of the vehicle body floor 19 is eliminated, and the vehicle is inclined in the same manner as the front slope plate 23. Here, the roller 91 is separated from the guide groove 92 and the other edge portion of the slide plate 84, that is, the front edge portion in the vehicle front-rear direction is placed on the upper surface of the vehicle body floor 19, so that the slide plate 84 does not deflect the wheelchair load. It can be received. As described above, the slide plate 84 has one edge portion rotatably supported by the slope 21 and the other edge portion movable on the vehicle body floor 19, and always covers the torsion bar 65 on the upper side, and is in a deployed state. Thus, the front slope plate 23 and the vehicle body floor 19 are connected to each other without any substantial difference. As shown in FIG. 3, a non-slip sheet 88 for preventing the wheelchair to be guided from slipping is affixed to the protruding side surface of the upright plate portion 86 of the substrate portion 85 of the slide plate 84.

  As shown in FIG. 4, the attachment members 58 for attaching the above-described leg portions 57 are bolted to the ends of the compatible plate portion 47 of the front slope plate 23 on the side opposite to the rotation shaft 30, respectively. A support shaft 94 is attached to each of the attachment members 58 so as to be along the vehicle width direction at a position in the vicinity of the end of the front slope plate 23 opposite to the rotation shaft 30. The rear slope plate 24 is rotatably supported by these support shafts 94.

  The rear slope plate 24 has a flat board portion 96 and a pair of upright plate portions 97 that rise perpendicularly to the board portion 96 from edge portions on both sides of the board portion 96 in the vehicle width direction. Support members 98 are bolted to one end side in the extending direction of the upright plate portion 97. And in these support members 98, the rear slope plate 24 is rotatably supported by the support shaft 94 of the front slope plate 23. As a result, the rear slope plate 24 rotates away from the front slope plate 23 from the folded state in which the rear slope plate 24 is folded so as to overlap the anti-slip sheet 54 side of the front slope plate 23 with the support shaft 94 as a center. It will rotate to the rear-lowering unfolding state which makes the edge part on the opposite side to 94 contact | abut on the ground 20.

  Here, as shown in FIG. 2, when the front slope plate 23 is in the unfolded state and the rear slope plate 24 is in the unfolded state, that is, when the slope 21 is in the unfolded state, the front slope plate 23, the rear slope The board portions 46, 96, 85 of the plate 24 and the slide plate 84 are arranged on the substantially same plane and are continuous, and the standing plate portions 47, 97, 86 on the same side in the vehicle width direction Both sides in the direction are arranged substantially on the same straight line above the substrate portions 46, 96, 85 and are in a substantially continuous state. A non-slip sheet 100 is also attached to the surface of the rear slope plate 24 on the protruding side of the standing plate portion 97 in the base plate portion 96 to prevent the guided wheelchair from slipping.

  The surface of the rear slope plate 24 opposite to the non-slip sheet 100 in the base plate portion 96 is an intermediate position in the extending direction of the upright plate portion 97, one side in the vehicle width direction, specifically, the left end portion. Further, a handle shaft 102 protruding outward in the vehicle width direction is rotatably supported. The handle shaft 102 protrudes laterally from the front slope plate 23 when the rear slope plate 24 is in the folded state, and the user holds the handle shaft 102 and unfolds the rear slope plate 24 in the folded state. Rotate between states. Further, on the surface of the base plate portion 96 opposite to the non-slip sheet 100, a stopper plate 103 protruding outward in the vehicle width direction is fixed to the opposite side of the support shaft 94 in the extending direction of the upright plate portion 97. Has been.

  The reinforcing plates 50 mounted on both sides of the front slope plate 23 in the vehicle width direction outside, that is, on both side edges of the slope 21 on the vehicle width direction outside, are located at intermediate predetermined positions in the length direction of the front slope plate 23. Lock mechanism portions (engagement portions) 106 are respectively provided. As shown in FIG. 2, these locking mechanism portions 106 are attached to attachment portions 107 (only one is shown in FIG. 2) provided on both side edges in the vehicle width direction in the opening 14 of the vehicle body 12 via attachment brackets 108. As shown in FIG. 8, the striker (engaged portion) 109 is automatically engaged with the latch 110 to lock the slope 21 in the retracted state shown in FIG. Here, each striker 109 has a pair of shaft portions 111 and 112 that are spaced apart from each other in the front-rear direction, and a connecting shaft portion 113 that connects the tip portions of the shaft portions 111 and 112.

  Then, each lock mechanism portion 106 causes the shaft portion 111 of the rear portion in the vehicle front-rear direction of the striker 109 to enter from the mouth portion 115 opened forward when the front slope plate 23 moves from the deployed state toward the retracted state. When the shaft portion 111 gets over the latch 110, the rotation of the latch 110 is restricted by the biasing force of a spring (not shown). As a result, the shaft portion 111 is held between the latch 110 and the bottom side of the mouth portion 115. . Thereby, the front slope board 23 is locked in the retracted state.

  The mounting bracket 108 is in contact with the stopper plate 103 of the rear slope plate 24 in the retracted state, and the rear slope plate 24 is pressed against the front slope plate 23 by pressing the rear slope plate 24 toward the front slope plate 23. A stopper rubber 117 held in the tatami state is attached so as to protrude rearward in the vehicle front-rear direction.

  As shown in FIG. 3, the end portion of the front slope plate 23 on the side opposite to the upright plate portion 47 of the substrate portion 46 is opposite to the rotation shaft 30 in a direction away from the rotation shaft 30. A protruding handle part (gripping part) 120 is fixed. As shown in FIG. 9, the handle portion 120 includes attachment shaft portions 122 on both sides in the vehicle width direction that are attached to the front slope plate 23 via attachment plate portions 121 fixed to each other, and the attachment shaft portions 122. A projecting shaft portion 123 projecting in the direction opposite to the rotating shaft 30 substantially along the front slope plate 23 from the proximity side, and a grip shaft portion 124 along the vehicle width direction connecting the tip portions of the projecting shaft portions 123, have. When the rear slope plate 24 is in the folded state, including when the slope 21 is in the retracted state, the handle portion 120 is always on the end edge of the slope 21 opposite to the rotating shaft 30 and this end. It protrudes from the edge to the opposite side of the rotation shaft 30, and the user holds the handle portion 120 and rotates the front slope plate 23 between the folded state and the unfolded state.

  A release lever (release) for releasing the engagement of the lock mechanism unit 106 with the striker 109 at a position in the vicinity of the handle unit 120 where the user can operate with the hand holding the grip shaft 124 of the handle unit 120. An operation unit 127 is provided.

  The release lever 127 is provided on the rotation shaft 30 side of the gripping shaft portion 124 of the handle portion 120, and the operation shaft portion 128 along the vehicle width direction and the rotation shaft 30 from both sides of the operation shaft portion 128 in the vehicle width direction. A rectangular frame shape having a pair of guide shaft portions 129 extending in the direction and a base shaft portion 131 that connects the opposite sides of the operation shaft portions 128 of the guide shaft portions 129 to each other. The release lever 127 is such that the guide shaft portions 129 on both sides in the vehicle width direction are slidably supported by the front slope plate 23 via the support member 130, and as a result, the operation shaft portion 128 is moved to the grip shaft portion of the handle portion 120. It moves along the front slope plate 23 so as to be close to and away from 124.

  A rack gear 132 that protrudes in the direction away from the gripping shaft portion 124, that is, in the direction of the rotation shaft 30 is fixed to the base shaft portion 131 of the release lever 127. The rack gear 132 is fixed to one side portion in the vehicle width direction. A gear part 133 is formed. A pinion gear 135 that meshes with the gear portion 133 is fixed to the support shaft 136 and is rotatably supported by the front slope plate 23 via the support shaft 136. A swing lever 138 is fixed to the support shaft 136 so as to protrude on both sides in the radial direction, and one end side of the cable inner 141 of the lock release cable 140 is engaged with each tip of the swing lever 138. . One end side of the cable outer 142 of these unlocking cables 140 is engaged with the front slope plate 23 by a mounting member 139, and the other end side of each unlocking cable 140 is connected to the lock mechanism portion 106, respectively.

  When the operation shaft portion 128 of the release lever 127 is brought close to the gripping shaft portion 124 of the handle portion 120, the rack gear 132 rotates the pinion gear 135. As a result, the swing lever 138 swings and both cables The inner 141 is pulled, and the engagement of the striker 109 by the latch 110 of both lock mechanism portions 106 is released. Thereby, the lock of the slope 21 in the retracted state is released and the slope 21 can be deployed.

  Here, the biasing force of a spring (not shown) for maintaining the latch 110 of the lock mechanism portion 106 in engagement with the striker 109 is applied to the release lever 127 by the two cable inners 141, the swing lever 138, and the pinion gear. 135 is introduced in a direction away from the gripping shaft portion 124 of the handle portion 120, and the base shaft portion 131 contacts the stopper 145 of the front slope plate 23 in a state where the user does not introduce an operating force to the release lever 127. It touches. At this time, the operation shaft portion 128 of the release lever 127 is separated from the gripping shaft portion 124 by a predetermined distance that the user can grip together with the gripping shaft portion 124 of the handle portion 120. The rack gear 132 and the pinion gear 135 of the release lever 127 are covered with a cover 146 shown in FIG. 1 attached to the front slope plate 23.

  In the slope structure of the present embodiment described above, the user swings the tailgate 13 to open the opening 14 at the rear part of the vehicle body 12 as shown in FIG. When the gripping shaft portion 124 of the handle portion 120 at the upper end of the slope 21 in the retracted state and the operation shaft portion 128 of the release lever 127 are gripped, the release lever 127 slides in a direction approaching the gripping shaft portion 124. Then, the cable inner 141 of the lock release cable 140 on both sides is pulled, the engagement of the latch 110 with the striker 109 in the lock mechanism 106 is released, and the slope 21 can be rotated. Subsequently, the user rotates the slope 21 around the rotation shaft 30 to the outside of the vehicle, that is, the rear side and the lower side while holding the grip shaft portion 124 of the handle portion 120, and the rear slope plate 24 is folded. The front slope plate 23 is set in the unfolded state in the state. Then, the leg portion 57 of the front slope plate 23 reaches the ground 20.

  The torsion bar 65 having one end engaged with the front slope plate 23 and the other end engaged with the vehicle body floor 19 is twisted by the rotation of the front slope plate 23 from the above retracted state to the deployed state. As a result, an urging force is generated on the front slope plate 23 in a direction to return it to the retracted state. As a result, the slope 21 is in a deployed state while abrupt rotation is suppressed.

  Further, when the front slope plate 23 is rotated from the retracted state to the unfolded state, the slope 21 moves slightly toward the rear of the vehicle as a whole, but is rotatably connected to the front slope plate 23 of the slope 21. While the slide plate 84 moves rearward, the roller 91 is lowered along the guide groove 92, and the vehicle body floor 19 and the front slope plate 23 are connected to each other. Moreover, the slide plate 84 covers the torsion bar 65 provided on the connection side between the vehicle body 12 and the front slope plate 23 from the upper side from the retracted state to the deployed state of the front slope plate 23.

  Next, the user holds the handle shaft 102 of the rear slope plate 24 and rotates the rear slope plate 24 rearward about the support shaft 94 so as to extend rearward from the front slope plate 23, and the front end side thereof. Is in an unfolded state where it can reach the ground 20.

  Thus, the ground 20 and the vehicle body floor 19 are connected via the rear slope plate 24, the front slope plate 23, and the slide plate 84 of the slope 21, and the board portion 96 of the rear slope plate 24 and the front slope plate 23 are connected. By moving the board portion 46 and the board portion 85 of the slide plate 84, the wheelchair on the ground 20 is placed on the vehicle body floor 19, or the wheelchair on the vehicle body floor 19 is lowered to the ground 20.

  When storing the slope 21 in the unfolded state as described above, the user holds the handle shaft 102 of the rear slope plate 24 and rotates the rear slope plate 24 forward about the support shaft 94, contrary to the above. By moving it, it is overlapped with the front slope plate 23 to be in a folded state. The user holds the gripping shaft portion 124 of the handle portion 120 that protrudes from the slope 21, thereby rotating the slope 21 upward and forward. Then, the lock mechanism portions 106 on both sides in the vehicle width direction of the slope 21 are automatically engaged with the strikers 109 on both sides in the vehicle width direction on the vehicle body 12 side to be locked, and the slope 21 is locked in the retracted state. At this time, since the slope 21 is biased by the torsion bar 65 in the direction to return to the retracted state, the user can return the slope 21 to the retracted state with a small operating force.

  According to the slope structure of the present embodiment described above, one end side of the torsion bar 65 is locked to the rotating shaft 30 side of the slope 21 and the other edge side is connected to the rotating shaft 30 side of the vehicle body 12. When the slope 21 rotates from the retracted state to generate a biasing force in a direction to return the slope 21 to the retracted state, even if the slope 21 has a large rotation angle, the slope 21 returns to the retracted state. Thus, it is possible to suppress the sudden rotation at the time of deployment and to reduce the operation force required for storage. Moreover, since the torsion bar 65 is provided in the clearance on the rotating shaft 30 side, which is the connection side of the slope 21 and the vehicle body 12, it can be disposed compactly.

  Further, when the slope 21 in the retracted state is rotated, the slide plate 84 having one edge portion rotatably supported by the slope 21 and the other end side movable on the vehicle body floor 12 is rotated with respect to the slope 21. While moving, the vehicle travels on the vehicle body floor 12 and keeps the torsion bar 65 covered. Therefore, the torsion bar 65 can be covered with the slide plate 84, and the appearance is improved.

  As a structure for releasing the engagement of the lock mechanism portion 106 with the striker 109 by the movement of the release lever 127, the cable inner 141 of each lock release cable 140 is attached to the base shaft portion 131 of the release lever 127 as shown in FIG. The cable outer 142 of each lock release cable 140 may be engaged with the front slope plate 23 by the mounting member 139 so that each lock release cable 140 extends to the rotating shaft 30 side while being directly connected. Also in this case, the cable inner 141 is pulled by bringing the operation shaft portion 128 of the release lever 127 close to the grip shaft portion 124 of the handle portion 120, and the engagement of the striker 109 by the latch 110 of the both lock mechanism portions 106. Can be canceled.

  In the above embodiment, the case where the slope structure is provided in the opening 14 at the rear portion of the vehicle body 12 has been described as an example. However, for example, the slope structure may be provided in the opening portion on the vehicle body side that is opened and closed by a slide door. .

It is the perspective view seen from diagonally backward which shows the storing state of the slope in the slope structure of the vehicle of one Embodiment of this invention. It is the perspective view seen from diagonally backward which shows the unfolded state of the slope in the slope structure of the vehicle of one Embodiment of this invention. It is the perspective view seen from diagonally forward which shows the storing state of the slope in the slope structure of the vehicle of one Embodiment of this invention. It is the perspective view seen from the diagonal front which shows the unfolded state of the slope in the slope structure of the vehicle of one Embodiment of this invention. It is the partial expansion perspective view seen from the slanting front which shows the unfolded state of the slope in the slope structure of the vehicle of one Embodiment of this invention. It is a fragmentary sectional view showing attachment parts, such as an attachment bracket, in the slope structure of vehicles of one embodiment of the present invention. It is a fragmentary sectional side view which shows the slide plate etc. in the slope structure of the vehicle of one Embodiment of this invention. It is a plane sectional view showing a lock mechanism part, a striker, etc. in a slope structure of a vehicle of one embodiment of the present invention. It is the elements on larger scale which show the handle | steering-wheel part periphery in the slope structure of the vehicle of one Embodiment of this invention. It is the elements on larger scale of the modification which shows the handle | steering-wheel periphery in the slope structure of the vehicle of one Embodiment of this invention.

Explanation of symbols

12 Car body 14 Opening 19 Car body floor 21 Slope 30 Rotating shaft 65 Torsion bar 84 Slide plate (plate)

Claims (2)

One end side is rotatably supported by a rotation shaft on the lower edge side of the opening formed in the side part or the rear part of the vehicle body, and the other end side is rotated so that the other end side moves to the outside of the vehicle from the stored state along the opening. In the slope structure of a vehicle having a moving slope,
One end side is locked to the rotating shaft side of the slope, the other end side is locked to the rotating shaft side of the vehicle body, and the slope is returned to the retracted state when the slope is rotated from the retracted state. A vehicle slope structure comprising a torsion bar for generating an urging force on the vehicle. 2. The vehicle slope structure according to claim 1, wherein the torsion bar is covered with a plate whose one edge is rotatably supported by the slope and whose other edge is movable on a vehicle body floor.

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