WO2021181760A1 - Step apparatus for vehicle - Google Patents

Step apparatus for vehicle Download PDF

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Publication number
WO2021181760A1
WO2021181760A1 PCT/JP2020/043862 JP2020043862W WO2021181760A1 WO 2021181760 A1 WO2021181760 A1 WO 2021181760A1 JP 2020043862 W JP2020043862 W JP 2020043862W WO 2021181760 A1 WO2021181760 A1 WO 2021181760A1
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WO
WIPO (PCT)
Prior art keywords
engaging
vehicle
movable
movable step
engaging member
Prior art date
Application number
PCT/JP2020/043862
Other languages
French (fr)
Japanese (ja)
Inventor
真司 風間
野村 啓介
日比 和宏
池田 和弘
Original Assignee
トヨタ車体株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by トヨタ車体株式会社 filed Critical トヨタ車体株式会社
Priority to CN202080091310.2A priority Critical patent/CN114929521A/en
Publication of WO2021181760A1 publication Critical patent/WO2021181760A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R3/00Arrangements of steps or ladders facilitating access to or on the vehicle, e.g. running-boards
    • B60R3/02Retractable steps or ladders, e.g. movable under shock

Definitions

  • This disclosure relates to a vehicle step device.
  • a step device for a vehicle that moves a movable step provided below the door opening in the vehicle width direction in conjunction with the opening / closing operation of the sliding door.
  • the movable step is connected to the slide door via a connecting member.
  • This connecting member has a guide member provided on the lower surface of the movable step and a sliding member guided by the guide member.
  • this step device is configured to move the movable step to the unfolding position on the outside in the vehicle width direction in conjunction with the opening operation of the slide door that moves to the rear of the vehicle while being displaced outward in the vehicle width direction.
  • this step device is configured to move the movable step to the storage position inside in the vehicle width direction in conjunction with the closing operation of the slide door that moves in front of the vehicle while being displaced inward in the vehicle width direction.
  • the movable step can be held at the storage position inside in the vehicle width direction in consideration of, for example, failure of the connecting member or maintainability at the time of maintenance.
  • this holding mechanism may hinder the movement of the movable step linked to the opening / closing operation of the slide door.
  • An object of the present disclosure is to provide a step device for a vehicle provided with a holding mechanism capable of ensuring smooth operation of a movable step.
  • the vehicle step device is a movable step supported below the door opening of the vehicle, and the vehicle moves along a movement path extending in the front-rear direction of the vehicle and in a displacement section in the movement path.
  • a connecting member configured to be supported by a sliding door that is displaced in the width direction, and by engaging with the movable step, the movable step is moved in the vehicle width direction in conjunction with the opening / closing operation of the sliding door. It includes a connecting member configured to allow the movable step to be engaged, and an engaging member configured to hold the movable step in a storage position inside in the vehicle width direction by engaging with the movable step.
  • the engaging member is configured to be movable between a lock position that holds the movable step in the storage position and an unlock position that does not interfere with the movable step. Further, the engaging member engages with the step-side engaging portion provided in the movable step by moving from the unlocked position to the locked position while the movable step is moved to the retracted position. When the movable step moves to the retracted position while the engaging member has moved to the locked position, the movable step is pressed by the movable step and moves from the locked position to the unlocked position. Will be done.
  • a side view of a vehicle showing the sliding door and step device of FIG. 3A and 3B are plan views showing a slide door of FIG. 1 that moves in the vehicle front-rear direction while being displaced in the vehicle width direction, and a movement path thereof.
  • 4A and 4B are plan views of the step device of FIG. 5A and 5B are plan views of the step device of FIG.
  • FIG. 3 is a cross-sectional view of the step device of FIG.
  • FIG. 5 is a cross-sectional view showing a guide roller unit which is a connecting member engaged with a guide rail provided in a movable step of the step device of FIG.
  • FIG. 3 is a perspective view of a cover member of the step device of FIG.
  • FIG. 3 is a plan view of the cover member of FIG. 13 that covers the movable step below the support arm and the support bracket.
  • FIG. 3 is a plan view of an engaging member constituting a movable step holding mechanism provided in the step device of FIG.
  • FIG. 3 is a plan view of an engaging member constituting a movable step holding mechanism provided in the step device of FIG.
  • FIG. 15 is an enlarged view of an engaging protrusion and a step-side engaging portion of the engaging member of FIG.
  • FIG. 15 is an enlarged view of an engaging protrusion and a step-side engaging portion of the engaging member of FIG.
  • FIG. 15 is an enlarged view of an engaging claw of the engaging member of FIG. 15 and a protrusion constituting the position holding member.
  • FIG. 15 is an enlarged view of an engaging claw of the engaging member of FIG. 15 and a protrusion constituting the position holding member.
  • FIG. 15 is an explanatory view of the operation of the holding mechanism of FIG.
  • FIG. 15 is an explanatory view of the operation of the holding mechanism of FIG.
  • the vehicle 1 is provided with a sliding door 4.
  • the sliding door 4 can open and close the door opening 3 provided on the side surface of the vehicle body 2 by moving in the front-rear direction of the vehicle.
  • the vehicle front-rear direction corresponds to the left-right direction in FIG.
  • a plurality of guide rails 10 extending in the front-rear direction of the vehicle are provided on the side surface of the vehicle body 2.
  • the guide rail 10 is arranged at the lower rail 11 arranged at the lower edge of the door opening 3, the center rail 12 arranged behind the door opening 3, and the upper edge of the door opening 3.
  • the upper rail 13 is included.
  • a guide roller unit 20 is connected to each guide rail 10.
  • Each guide roller unit 20 can move along the extending direction of each guide rail 10.
  • the slide door 4 is supported by the vehicle body 2 via each guide roller unit 20.
  • the slide door 4 can be opened and closed along each guide rail 10 extending in the front-rear direction of the vehicle. That is, the movement path of the slide door 4 extends in the front-rear direction of the vehicle.
  • each guide rail 10 is curved inward in the vehicle width direction (upper side in FIG. 3) from the rear side to the front side of the vehicle toward the longitudinal end portion 10f on the front side of the vehicle. It has a curved shape portion 30.
  • the slide door 4 is fully closed with each guide roller unit 20 located at the longitudinal end 10f of each guide rail 10.
  • the lower rail 11 and the lower roller unit 21 are shown in FIG. 3A
  • the center rail 12 and the center roller unit 22 are shown in FIG. 3B
  • the upper rail 13 and the upper roller unit 23 are shown. The illustration is omitted.
  • the sliding door 4 opens and closes in the vehicle front-rear direction with displacement in the vehicle width direction.
  • the slide door 4 When the slide door 4 is in the fully closed position Pc, its outer surface 4a is configured to be substantially flush with the side surface 2a of the vehicle body 2. Further, when the sliding door 4 is opened from such a fully closed position Pc, the sliding door 4 moves to the rear side of the vehicle while being displaced outward in the vehicle width direction. That is, the width direction displacement section Rc in which the slide door 4 is displaced in the vehicle width direction is located on the side where the fully closed position Pc exists in the movement path R of the slide door 4.
  • the alternate long and short dash line indicates the locus of the sliding door 4 that opens and closes, specifically, the front end portion thereof.
  • the vehicle 1 is configured such that the sliding door 4 that opens and closes does not interfere with the vehicle body 2.
  • the vehicle 1 is provided with a power slide door device 31 that opens and closes the slide door 4 using a motor 31 m as a drive source.
  • a power slide door device 31 that opens and closes the slide door 4 using a motor 31 m as a drive source.
  • the vehicle 1 can open and close the slide door 4 by operating a door handle (not shown), an operation switch provided in the vehicle interior, or a portable device, not limited to manual operation by the occupant. It has become.
  • the vehicle 1 is provided with a step device 41 for use by occupants getting on and off the vehicle 1.
  • the step device 41 deploys the step member 40, which is a stepping stone, below the door opening 3.
  • the step device 41 is a movable step 42 supported below the door opening 3 in a state of being movable in the vehicle width direction.
  • a sub-step 43 which is fixed to the vehicle body 2 and arranged below the door opening 3 together with the movable step 42, is provided.
  • the vertical direction is the vehicle width direction
  • the left-right direction is the vehicle width direction.
  • the sub step 43 is provided at a position above the movable step 42.
  • the sub-step 43 includes a base portion 45 fixed to the side surface 2a of the vehicle body 2 and a step portion 46 rotatably connected to the base portion 45.
  • the step portion 46 is displaced in the vertical direction by rotation around the connecting shaft 46x.
  • the sub-step 43 has a configuration in which the step portion 46 is displaced in the vertical direction so as to come into contact with the upper surface 42a of the movable step 42 arranged below the sub-step 43.
  • the step device 41 is rotatably connected to the vehicle body 2 and rotatably connected to the movable step 42. It is equipped with an arm 47.
  • each support arm 47 is connected to the vehicle body 2 via a plurality of support brackets 48 fixed to the lower surface 2b of the vehicle body 2. Further, each support arm 47 rotates with the first rotation connection point M1 with respect to each support bracket 48 as a fulcrum, and rotates with the second rotation connection point M2 with respect to the movable step 42 as a fulcrum.
  • the movable step 42 supported by the support arms 47 moves in the vehicle width direction below the sub step 43 while maintaining a substantially horizontal posture.
  • the support arm 47 includes two main arms 51 arranged apart from each other in the front-rear direction of the vehicle, and a sub-arm 52 arranged between the two main arms 51.
  • the sub-arm 52 is formed by rotatably connecting the base end side arm 53 connected to the vehicle body 2 and the tip end side arm 54 connected to the movable step 42. That is, the sub-arm 52 has a bendable joint M3.
  • the support bracket 48 includes a front bracket 48f that connects the front main arm 51f and the sub arm 52 to the vehicle body 2, and a rear bracket 48r that connects the rear main arm 51r to the vehicle body 2.
  • the movable step 42 moves outward in the vehicle width direction below the sub step 43, so that the movable step 42 moves outward in the vehicle width direction from the sub step 43. It is arranged at the protruding deployment position P2. Further, the sub-step 43 maintains a state in which the step portion 46 is in contact with the upper surface 42a of the movable step 42 even when the movable step 42 is in the deployed position P2.
  • the design surface 46s of the step portion 46 forms a step surface S2 integrated with the step surface S1 of the movable step 42.
  • the movable step 42 includes a movable base 55 having a substantially flat outer shape, and a resin cover 56 that covers the upper part of the movable base 55. ..
  • the base portion 45 and the step portion 46 of the sub-step 43 are also formed by laminating the resin cover 58 on the base member 57 having a substantially flat outer shape, respectively.
  • the resin cover 58 constitutes the design surfaces 45s and 46s of the base portion 45 and the step portion 46, respectively.
  • the resin cover 56 of the movable step 42 and the resin cover 58 covering the step portion 46 of the sub step 43 form the step surfaces S1 and S2, respectively.
  • the step device 41 includes a guide rail 60 provided on the lower surface 42b of the movable step 42 extending in the front-rear direction of the vehicle along the longitudinal direction of the movable step 42.
  • the guide rail 60 includes a pair of side wall portions 61 and 62 facing each other in the vehicle width direction. Further, the guide rail 60 includes a retaining flange 63 extending from the side wall portion 62 located inside in the vehicle width direction toward the side wall portion 61 outside in the vehicle width direction. The retaining flange 63 is formed by bending the lower end portion from the side wall portion 62.
  • the step device 41 includes a guide roller unit 70 having a guide roller 65 arranged between both side wall portions 61 and 62 of the guide rail 60. The guide roller unit 70 is supported by the slide door 4.
  • the guide roller unit 70 moves integrally with the slide door 4 based on the opening / closing operation of the slide door 4.
  • the guide roller 65 arranged in the guide rail 60 also moves in the vehicle front-rear direction according to the operating direction of the slide door 4.
  • the guide rail 60 prevents the guide rollers 65 arranged between the side wall portions 61 and 62 from coming off by the retaining flange 63 provided at the lower end of the side wall portion 62.
  • the guide roller unit 70 is pressed by the guide roller 65 against the side wall portion 61 of the guide rail 60 located on the outer side in the vehicle width direction or the side wall portion 62 of the guide rail 60 located on the inner side in the vehicle width direction while rubbing.
  • the movable step 42 provided with the guide rail 60 is configured to move in the vehicle width direction.
  • the guide roller 65 abuts on the side wall portion 61 of the guide rail 60 located outside in the vehicle width direction, and while pressing the side wall portion 61, the inside of the guide rail 60 is moved in the opening operation direction of the slide door 4. Move toward the rear side of a vehicle. As a result, the guide roller unit 70 moves the movable step 42 outward in the vehicle width direction. Further, the guide roller 65 abuts on the side wall portion 62 of the guide rail 60 located inside in the vehicle width direction, and while pressing the side wall portion 62, the inside of the guide rail 60 is in the vehicle front in the closing operation direction of the slide door 4. Move towards the side. As a result, the guide roller unit 70 moves the movable step 42 inward in the vehicle width direction.
  • the step device 41 moves the movable step 42 from the storage position P1 to the deployment position P2 in conjunction with the opening operation of the slide door 4, while moving the movable step 42 to the deployment position P2 in conjunction with the closing operation of the slide door 4. It is configured to move from to the storage position P1 (see FIGS. 4A to 5B).
  • the guide rail 60 is provided at the longitudinal end portion 60f on the front side of the vehicle, similarly to the curved shape portion 30 provided on each guide rail 10 of the slide door 4.
  • a curved shape portion 60c that is curved inward in the vehicle width direction from the rear side of the vehicle to the front side is provided.
  • the slide door 4 is fully closed with the guide roller unit 70 located at the longitudinal end 60f of the guide rail 60.
  • the movable step 42 can be gently moved in the vehicle width direction by the guide roller 65 smoothly moving in the guide rail 60 based on the opening / closing operation of the slide door 4. ..
  • the guide roller unit 70 has a fixing member 71 fixed to the slide door 4 in a vertically extending state, and a fixing member 71.
  • the arm member 72 is rotatably connected to the lower end of the arm member 72.
  • the arm member 72 is connected to the fixing member 71 via a shaft-shaped member 73 that serves as a rotation shaft thereof.
  • the tip end side of the arm member 72 extends inward in the vehicle width direction.
  • a support shaft 65x extending in the vertical direction is provided at the tip of the arm member 72.
  • the guide roller unit 70 is configured to rotatably support the guide roller 65 by the support shaft 65x.
  • the guide roller unit 70 includes a torsion coil spring 75 interposed between the fixing member 71 and the arm member 72 in a state of being fitted on the outer circumference of the shaft-shaped member 73.
  • the tip side of the arm member 72 is lifted upward based on the urging force of the torsion coil spring 75, and the inside of the guide rail 60 is lifted.
  • the guide roller 65 is supported by (see FIG. 10A).
  • the arm is further brought closer to the upper end portion of the fixing member 71 based on the urging force of the torsion coil spring 75.
  • the member 72 rotates (see FIG. 10B).
  • the guide rail 60 has a notch portion 77 in which a part of the retaining flange 63 provided at the lower end of the side wall portion 62 is cut out. .. More specifically, the guide rail 60 has a plurality of notches 77 provided at positions on the rear side of the vehicle with respect to the curved shape portion 60c. Then, the step device 41 uses the notch 77 to provide the guide roller 65 of the guide roller unit 70 supported by the slide door 4 with respect to the guide rail 60 provided on the lower surface 42b side of the movable step 42. It can be inserted and removed.
  • the guide rail 60 moves the guide roller 65 in the vertical direction over the retaining flange 63 provided at the lower end of the side wall portion 62 at the longitudinal position where the notch portion 77 is provided. Tolerate. Further, the guide roller unit 70 can rotate the arm member 72 against the urging force of the torsion coil spring 75 by pushing the arm member 72 downward. By releasing this pushing force, the guide roller unit 70 can rotate the arm member 72 again based on the urging force of the torsion coil spring 75.
  • the step device 41 is provided at the tip of the arm member 72 by rotating the arm member 72 based on the urging force of the torsion coil spring 75 while utilizing the notch 77 provided in the guide rail 60.
  • the guide roller 65 can be inserted into the guide rail 60 from below. Further, by rotating the arm member 72 against the urging force of the torsion coil spring 75, the guide roller 65 supported in the guide rail 60 can be detached below the guide rail 60. As a result, the step device 41 can easily connect and disconnect the slide door 4 that supports the guide roller unit 70 and the movable step 42 provided with the guide rail 60.
  • the step device 41 includes a cover member 80 that covers the lower side of each of the support arms 47 by being fixed to the lower surface 2b of the vehicle body 2.
  • the cover member 80 includes a bottom wall portion 81 arranged below each support arm 47, and a peripheral wall portion 82 provided so as to be substantially orthogonal to the edge portion of the bottom wall portion 81.
  • the peripheral wall portion 82 extends upward toward the lower surface 2b of the vehicle body 2.
  • the bottom wall portion 81 is formed in a size that covers the movable step 42 from below each support arm 47 when the movable step 42 is in the storage position P1.
  • the peripheral wall portion 82 is provided so as to extend to the front side of the vehicle, the inside in the vehicle width direction, and the rear side so as to be substantially orthogonal to the edge portion of the bottom wall portion 81.
  • the cover member 80 forms a storage space 83 that opens outward in the vehicle width direction at a position below the lower surface 2b of the vehicle body 2.
  • the cover member 80 is fastened together with the support bracket 48 of each support arm 47 to the lower surface 2b of the vehicle body 2. Further, the cover member 80 forms an accommodation space 83 between the lower surface 2b of the vehicle body 2 located above and the step portion 46 of the sub-step 43. As a result, when the movable step 42 is in the storage position P1, substantially the entire movable step 42 is accommodated in the accommodation space 83 together with each support arm 47.
  • the step device 41 is configured to prevent foreign matter from entering the accommodation space 83 through the opening portion on the outer side in the vehicle width direction when the vehicle 1 is traveling.
  • the step device 41 is in a state where the guide roller unit 70 is detached from the guide rail 60 provided in the movable step 42, that is, in a state where the connection with the slide door 4 is released.
  • a holding mechanism 100 capable of holding the movable step 42 at the storage position P1 inside in the vehicle width direction is provided.
  • the holding mechanism 100 is provided on the cover member 80 that forms the accommodation space 83 of the movable step 42 that has moved to the storage position P1. Specifically, the holding mechanism 100 is provided in the vicinity of the front end portion 80f of the cover member 80. Further, the holding mechanism 100 includes an engaging member 111 including a lever member 110 that rotates around a support shaft 110x that is substantially orthogonal to the bottom wall portion 81 of the cover member 80. Further, the engaging member 111 engages with the step-side engaging portion 120 provided in the movable step 42 by rotating around the support shaft 110x in a state where the movable step 42 is moved to the storage position P1. And detach. The engaging member 111 is movable between an unlock position X0 that does not interfere with the movable step 42 that moves in the vehicle width direction and a lock position X1 that holds the movable step 42 at the storage position P1.
  • the engaging member 111 includes a lever main body 131 extending in the vehicle width direction and an engaging protrusion 132 protruding from the tip end portion 131a of the lever main body 131.
  • a support shaft 110x is provided at the base end portion 131b of the lever body 131.
  • the engaging protrusion 132 extends in the circumferential direction of the support shaft 110x.
  • the holding mechanism 100 has a support shaft 110x of the engaging member 111 in the vicinity of the peripheral wall portion 82 located inside in the vehicle width direction in the accommodation space 83 of the movable step 42 formed by the cover member 80. ing.
  • the engaging protrusion 132 projects from the tip 131a of the lever body 131 extending toward the outside in the vehicle width direction (lower side in each drawing) toward the rear side of the vehicle (right side in each drawing).
  • the front end portion 42f of the movable step 42 is provided with an engaging recess 135 that opens to the front side of the vehicle.
  • the engaging recess 135 is a step-side engaging portion 120. Then, the engaging member 111 that has moved to the lock position X1 engages with the movable step 42.
  • the engaging member 111 moves from the unlock position X0 to the lock position X1 by rotating counterclockwise around the support shaft 110x.
  • the engaging member 111 moves from the lock position X1 to the unlock position X0 by rotating clockwise around the support shaft 110x.
  • the engaging protrusion 132 protruding from the tip 131a of the lever body 131 is formed by rotating the movable step 42 around the support shaft 110x while moving to the storage position P1. It is inserted and detached from the engaging recess 135, which is the step-side engaging portion 120. As a result, the engaging member 111 can hold the movable step 42 at the storage position P1 and release the holding state.
  • a chamfered portion 133 having a curved surface 133s is provided at the tip of the engaging protrusion 132.
  • the holding mechanism 100 can smoothly insert and disengage the engaging protrusion 132 into the engaging recess 135 by rotating the engaging member 111.
  • the engaging member 111 is provided with an engaging claw 140 that protrudes in the radial direction of the support shaft 110x from the base end portion 131b of the lever body 131.
  • the engaging claw 140 has a triangular shape that tapers toward the tip end side.
  • the engaging claw 140 projects inward in the vehicle width direction.
  • the peripheral wall portion 82 of the cover member 80 facing the engaging claw 140 is provided with a protrusion 141 protruding outward in the vehicle width direction.
  • the protrusion 141 is provided at a position substantially the same as the position of the support shaft 110x of the engaging member 111 in the vehicle front-rear direction.
  • the engaging member 111 is held at the lock position X1 or the unlock position X0 by engaging the engaging claw 140 with the protrusion 141.
  • the protrusion 141 engages with the engaging claw 140 in a state where the engaging claw 140 of the engaging member 111 is located on the front side (left side in each drawing) of the vehicle.
  • the rotation of the engaging member 111 from the lock position X1 to the unlock position X0 in the unlock direction is restricted.
  • the protrusion 141 is used as the position holding member 150 that holds the engaging member 111 at the lock position X1.
  • the engaging surface 141s of the protrusion 141 with respect to the engaging claw 140 includes a curved surface 142.
  • the curved surface 142 has a substantially arcuate cross section that bulges toward the support shaft 110x of the engaging member 111 located in the direction in which the protrusion 141 protrudes. Further, the holding mechanism 100 rotates the engaging member 111 in the unlocking direction against the engaging force based on the curved surface shape of the engaging surface 141s, which is the engaging force between the protrusion 141 and the engaging claw 140. It is possible to make it.
  • the engaging claw 140 overcomes the protrusion 141.
  • the engaging claw 140 can be detached from the protrusion 141.
  • the engaging member 111 moves from the lock position X1 to the unlock position X0 by rotating in the clockwise direction in each drawing.
  • the engaging claw 140 is engaged with the protruding portion 141 in a state where the engaging claw 140 of the engaging member 111 is located on the rear side (right side in each drawing) of the vehicle.
  • the rotation of the engaging member 111 in the locking direction in which the engaging member 111 moves from the unlock position X0 to the lock position X1 is restricted.
  • the engaging claw 140 gets over the protrusion 141 by applying an operating force in the locking direction that exceeds the engaging force with the protrusion 141 constituting the position holding member 150 to the engaging member 111.
  • the engaging claw 140 can be detached from the protrusion 141.
  • the engaging member 111 moves from the unlock position X0 to the lock position X1 by rotating in the counterclockwise direction in each drawing.
  • a non-slip portion 155 is provided at the tip of the lever body 131.
  • the non-slip portion 155 has a serration-like uneven shape 153.
  • the holding mechanism 100 applies an engaging force between the engaging member 111 and the position holding member 150 when the user locks and unlocks the movable step 42 from the opening 83x of the accommodation space 83 facing the outside in the vehicle width direction. against this, the engaging member 111 can be easily rotated.
  • the engaging member 111 has an outer shape such that the cross-sectional shape of the lever body 131 intersecting in the longitudinal direction has a cross-sectional groove shape that opens downward.
  • the holding mechanism 100 includes a stopper portion 162 protruding from the lever support portion 160 provided on the cover member 80.
  • the stopper portion 162 is arranged in the engaging recess 161 formed by the cross-sectional shape of the engaging member 111. Then, the stopper portion 162 limits the moving range of the engaging member 111 that rotates around the support shaft 100x by engaging with the inner wall surface of the engaging recess 161 provided in the engaging member 111.
  • the engaging force between the position holding member 150 and the engaging member 111 is set to a value smaller than the driving force for moving the movable step 42 in conjunction with the opening / closing operation of the slide door 4.
  • the engaging member 111 is detached from the position holding member 150 and rotates in the unlocking direction based on the pressing force of the movable step 42 that moves to the storage position P1.
  • the movable step 42 moves to the storage position P1
  • the movable step 42 moves from the outside to the inside in the vehicle width direction with the movement to the front side of the vehicle linked to the closing operation of the slide door 4. do.
  • the tip portion 132a of the engaging protrusion 132a is movable step without the engaging protrusion 132 protruding toward the rear side of the vehicle engaging with the engaging recess 135 constituting the step side engaging portion 120. Pressed by 42.
  • the pressing force of the movable step 42 is efficiently converted into a force that rotates the engaging member 111 in the unlocking direction.
  • the movable step 42 is in a state where the inner wall surface 135s of the engaging recess 135 constituting the step-side engaging portion 120 presses the engaging protrusion 132 of the engaging member 111 inserted into the engaging recess 135. Moves outward in the vehicle width direction. Further, the engaging protrusion 132 is pulled out from the engaging recess 135 based on the angle at which the inner wall surface 135s of the engaging recess 135 presses the engaging protrusion 132. As a result, the force that the movable step 42 that moves outward in the vehicle width direction presses the engaging member 111 is converted into a force that rotates the engaging member 111 around the support shaft 110x, so that the engaging member can be smoothly engaged. 111 moves from the lock position X1 to the unlock position X0 Next, the operation of the present embodiment will be described.
  • the movable step 42 when the movable step 42 moves from the outside in the vehicle width direction to the storage position P1 in a state where the engaging member 111 is moved to the lock position X1, the movable step 42 unlocks the engaging member 111. Press in the lock direction. Further, even when the movable step 42 moves outward in the vehicle width direction from the storage position P1 while the engaging member 111 is engaged with the movable step 42, the movable step 42 presses the engaging member 111 in the unlocking direction. do. Then, by moving the movable step 42 from the lock position X1 to the unlock position X0, smooth movement of the movable step 42 linked to the opening / closing operation of the slide door 4 is ensured.
  • the step device 41 is supported below the door opening 3 and is connected to the slide door 4 via a guide roller unit 70 which is a connecting member, so that the step device 41 is interlocked with the opening / closing operation of the slide door 4.
  • a movable step 42 that moves in the vehicle width direction is provided. Further, the step device 41 is between the lock position X1 that holds the movable step 42 at the storage position P1 inside in the vehicle width direction by engaging with the movable step 42 and the unlock position X0 that does not interfere with the movable step 42.
  • a movable engaging member 111 is provided. When the movable step 42 moves to the storage position P1 while the engaging member 111 has moved to the lock position X1, the engaging member 111 is pressed by the movable step 42, and the locking position X1 to the unlocking position X0 Move to.
  • the engaging member 111 even when the engaging member 111 moves to the lock position X1 due to, for example, an erroneous operation, the engaging member 111 does not hinder the movement of the movable step 42 linked to the closing operation of the slide door 4. Can be done. Thereby, the holding mechanism 100 capable of ensuring the smooth operation of the movable step 42 can be formed.
  • the engaging member 111 includes a lever member 110 that rotates around a support shaft 110x. Further, the engaging member 111 has a lever main body 131 having a support shaft 110x, and an engaging protrusion 132 protruding from the lever main body 131 so as to extend in the rotation direction around the support shaft 110x. Further, when the movable step 42 is in the state of being moved to the storage position P1, the engaging member 111 is rotated around the support shaft 110x so that the engaging protrusion 132 is provided on the movable step 42 on the step side. Engage and disengage with the engaging portion 120.
  • the force that the movable step 42 that moves inward in the vehicle width direction in conjunction with the closing operation of the slide door 4 presses the engaging member 111 is efficiently applied to the engaging member 111 around the support shaft 110x. It can be converted into a rotating force. As a result, the engaging member 111 can be smoothly moved from the lock position X1 to the unlock position X0.
  • the step device 41 includes a position holding member 150 that holds the engaging member 111 at the lock position X1 by engaging with the engaging member 111.
  • the engaging member 111 resists the engaging force with the position holding member 150 when the movable step 42 moves outward in the vehicle width direction from the storage position P1 in a state where the engaging member 111 is engaged with the movable step 42.
  • the lock position X1 can be moved to the unlock position X0.
  • the movable step 42 even when the movable step 42 moves in conjunction with the opening operation of the slide door 4 in a state where the engaging member 111 is engaged with the movable step 42 due to, for example, an erroneous operation, the movable step 42 It is possible to prevent the engaging member 111 from hindering the movement of the. Thereby, the holding mechanism 100 capable of ensuring the smooth operation of the movable step 42 can be formed.
  • the engaging member 111 has an engaging claw 140 protruding in the radial direction of the support shaft 110x. Further, the engaging member 111 is provided on the bottom wall portion 81 of the cover member 80 that covers the lower part of the movable step 42 that has moved to the storage position P1.
  • the peripheral wall portion 82 of the cover member 80 is provided with a protruding portion 141 projecting toward the support shaft 110x of the engaging member 111.
  • the protrusion 141 is used as a position holding member 150 that regulates the movement of the engaging member 111 from the lock position X1 to the unlock position X0, that is, rotation in the unlock direction by engaging with the engaging claw 140. Be done. That is, the position holding member 150 is a protrusion 141 provided on the cover member 80.
  • the engaging member 111 can be stably arranged in the vicinity of the movable step 42 that has moved to the storage position P1 with a simple configuration. Further, according to the above configuration, the position holding member 150 can be stably formed with a simple configuration. Then, by providing the engaging claw 140 on the engaging member 111, the engaging member 111 and the position holding member 150 can be engaged and disengaged smoothly and stably by rotating around the support shaft 110x. can.
  • the protrusion 141 which is the position holding member 150, regulates the rotation in the lock direction by engaging the engaging claw 140 with the protrusion 141 from the lock direction opposite to the unlock direction. It has a function of holding the engaging member 111 at the unlock position X0. As a result, the engaging member 111 that has moved from the lock position X1 to the unlock position X0 can be held at the unlock position X0 with a simple configuration.
  • the engaging surface 141s of the protrusion 141 constituting the position holding member 150 with respect to the engaging claw 140 includes a curved surface 142 having a substantially arcuate cross section that bulges toward the support shaft 110x of the engaging member 111.
  • the step-side engaging portion 120 includes an engaging recess 135 into which the engaging protrusion 132 is inserted and disengaged by rotating the engaging member 111 around the support shaft 110x. Then, with the engaging protrusion 132 inserted into the engaging recess 135, the movable step 42 moves outward in the vehicle width direction, so that the engaging protrusion 132 is based on the pressing force of the movable step 42. , Extracted from the engaging recess 135.
  • the force that the movable step 42 that moves outward in the vehicle width direction in conjunction with the opening operation of the slide door 4 presses the engaging member 111 is efficiently applied to the engaging member 111 around the support shaft 110x. It can be converted into a rotating force. As a result, the engaging member 111 can be smoothly moved from the lock position X1 to the unlock position X0.
  • a chamfered portion 133 having a curved surface 133s is provided on the tip portion 132a of the engaging protrusion 132.
  • the step device 41 includes a stopper portion 162 that limits the moving range of the engaging member 111. As a result, rattling of the engaging member 111 held at the lock position X1 or the unlock position X0 can be suppressed.
  • a non-slip portion 155 having a serration-like uneven shape 153 is provided.
  • the engaging member 111 when the user performs the locking operation and the unlocking operation of the movable step 42, the engaging member 111 is easily rotated against the engaging force between the engaging member 111 and the position holding member 150. Can be moved.
  • the step device 41 interlocking with the rear-opening type slide door 4 that opens to the rear side of the vehicle is embodied, but it is applied to the front-opening type slide door 4 that opens to the front side of the vehicle. May be good.
  • the slide door 4 is opened and closed by being driven by the power slide door device 31, but it may be applied to the slide door 4 that does not have such a power slide door device 31. ..
  • the support structure thereof for example, the rail & slider method, may be arbitrarily changed.
  • the cover member 80 that covers the lower part of the movable step 42 that has moved to the storage position P1 is provided with the engaging member 111 and the position holding member 150 that constitute the holding mechanism 100.
  • the location may be changed arbitrarily.
  • the engaging member 111 has a lever body 131, an engaging protrusion 132, and an engaging claw 140, and includes a lever member 110 that rotates around a support shaft 110x.
  • the configuration may be changed arbitrarily.
  • the engaging portion with respect to the step-side engaging portion 120 may have a shape different from that of the engaging protrusion 132, and the engaging portion with respect to the position holding member 150 is also different from the engaging claw 140. It may have different shapes.
  • the lever is not necessarily the rotary lever, but may be a slide lever.
  • the shape of the step side engaging portion 120 and the forming position thereof may be arbitrarily changed.
  • the shape and arrangement of the position holding member 150 is not limited to the protrusion 141 in the above embodiment, and may be arbitrarily changed.
  • the position holding member 150 has a function of holding the engaging member 111 at the lock position X1 and a function of holding the engaging member 111 at the unlock position X0.
  • a member may be used to hold the engaging member 111 at the unlock position X0.
  • the configuration of the stopper portion 162 may be arbitrarily changed.
  • two protrusions 164 and 165 are provided at two positions sandwiching the protrusions 141 constituting the position holding member 150 in the front-rear direction of the vehicle. Further, the protrusion 164 comes into contact with the engaging claw 140 when the engaging claw 140 of the engaging member 111 rotating around the support shaft 110x rotates in the locking direction beyond the lock position X1. It is arranged at a position that regulates the rotation range of the joint member 111. The protrusion 165 comes into contact with the engaging claw 140 when the engaging claw 140 of the engaging member 111 rotating around the support shaft 110x rotates in the unlocking direction beyond the unlock position X0. It is arranged at a position that regulates the rotation range of the joint member 111. As a result, each of these protrusions 164 and 165 may be used as a stopper portion 162B thereof.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Mechanical Control Devices (AREA)

Abstract

This step apparatus for a vehicle includes a movable step configured to be supported by the lower part of a door opening, a coupling member configured to engage with the movable step and thereby cooperate with an opening or closing operation of a sliding door and move the movable step in the width direction of the vehicle, and an engaging member configured to engage with the movable step and thereby keep the movable step in a storage position inward in the width direction of the vehicle. The engaging member is configured to: move from an unlocked position at which there is no interference with the movable step to a locked position at which the movable step is kept in the storage position in a condition in which the movable step is moved to the storage position, thereby engaging with a step-side engaging part provided on the movable step; and move from the locked position to the unlocked position by being pushed by the movable step in a case where the movable step is moved to the storage position in a condition in which the engaging member has moved to the locked position.

Description

車両用ステップ装置Vehicle step device
 本開示は、車両用ステップ装置に関する。 This disclosure relates to a vehicle step device.
 従来、スライドドアの開閉動作に連動してドア開口部の下方に設けられた可動ステップを車幅方向に移動させる車両用のステップ装置がある。例えば、特許文献1に記載のステップ装置において、可動ステップは、連結部材を介してスライドドアと連結されている。この連結部材は、可動ステップの下面に設けられたガイド部材、及びこのガイド部材に案内される摺動部材を有する。これにより、このステップ装置は、車幅方向外側に変位しつつ車両後方に移動するスライドドアの開動作に連動して、可動ステップを車幅方向外側の展開位置に移動させる構成になっている。また、このステップ装置は、車幅方向内側に変位しつつ車両前方に移動するスライドドアの閉動作に連動して、可動ステップを車幅方向内側の格納位置に移動させる構成になっている。 Conventionally, there is a step device for a vehicle that moves a movable step provided below the door opening in the vehicle width direction in conjunction with the opening / closing operation of the sliding door. For example, in the step device described in Patent Document 1, the movable step is connected to the slide door via a connecting member. This connecting member has a guide member provided on the lower surface of the movable step and a sliding member guided by the guide member. As a result, this step device is configured to move the movable step to the unfolding position on the outside in the vehicle width direction in conjunction with the opening operation of the slide door that moves to the rear of the vehicle while being displaced outward in the vehicle width direction. Further, this step device is configured to move the movable step to the storage position inside in the vehicle width direction in conjunction with the closing operation of the slide door that moves in front of the vehicle while being displaced inward in the vehicle width direction.
特開2007-269086号公報Japanese Unexamined Patent Publication No. 2007-269086
 上記のような構成を有するステップ装置において、可動ステップは、例えば、連結部材の故障、或いはメンテナンス時の整備性等を考慮して、車幅方向内側の格納位置に保持可能であることが望ましい。しかしながら、例えば、誤操作等により、保持機構が可動ステップを格納位置に保持する状態に移行した場合には、この保持機構が、スライドドアの開閉動作に連動した可動ステップの移動を妨げるおそれがある。 In the step device having the above configuration, it is desirable that the movable step can be held at the storage position inside in the vehicle width direction in consideration of, for example, failure of the connecting member or maintainability at the time of maintenance. However, for example, when the holding mechanism shifts to the state of holding the movable step in the storage position due to an erroneous operation or the like, this holding mechanism may hinder the movement of the movable step linked to the opening / closing operation of the slide door.
 本開示の目的は、可動ステップの円滑な動作を確保することが可能な保持機構を備えた車両用ステップ装置を提供することにある。 An object of the present disclosure is to provide a step device for a vehicle provided with a holding mechanism capable of ensuring smooth operation of a movable step.
 本開示の一態様に係る車両用ステップ装置は、車両のドア開口部の下方に支持される可動ステップと、車両前後方向に延びる移動経路に沿って移動するとともにその移動経路中の変位区間において車幅方向に変位するスライドドアに支持されるように構成された連結部材であって、前記可動ステップに係合することにより前記スライドドアの開閉動作に連動して前記可動ステップを車幅方向に移動させるように構成された連結部材と、前記可動ステップに係合することにより該可動ステップを車幅方向内側の格納位置に保持するように構成された係合部材と、を備える。前記係合部材は、前記可動ステップを前記格納位置に保持するロック位置と、前記可動ステップに干渉しないアンロック位置との間を移動可能に構成される。さらに、前記係合部材は、前記可動ステップが前記格納位置に移動した状態で、前記アンロック位置から前記ロック位置に移動することにより、前記可動ステップに設けられたステップ側係合部に係合し、前記係合部材が前記ロック位置に移動した状態で前記可動ステップが前記格納位置に移動した場合には、前記可動ステップに押圧されて前記ロック位置から前記アンロック位置に移動するように構成される。 The vehicle step device according to one aspect of the present disclosure is a movable step supported below the door opening of the vehicle, and the vehicle moves along a movement path extending in the front-rear direction of the vehicle and in a displacement section in the movement path. A connecting member configured to be supported by a sliding door that is displaced in the width direction, and by engaging with the movable step, the movable step is moved in the vehicle width direction in conjunction with the opening / closing operation of the sliding door. It includes a connecting member configured to allow the movable step to be engaged, and an engaging member configured to hold the movable step in a storage position inside in the vehicle width direction by engaging with the movable step. The engaging member is configured to be movable between a lock position that holds the movable step in the storage position and an unlock position that does not interfere with the movable step. Further, the engaging member engages with the step-side engaging portion provided in the movable step by moving from the unlocked position to the locked position while the movable step is moved to the retracted position. When the movable step moves to the retracted position while the engaging member has moved to the locked position, the movable step is pressed by the movable step and moves from the locked position to the unlocked position. Will be done.
ドア開口部に設けられたスライドドア及びステップ装置を示す車両の斜視図。A perspective view of a vehicle showing a sliding door and a step device provided in a door opening. 図1のスライドドア及びステップ装置を示す車両の側面図。A side view of a vehicle showing the sliding door and step device of FIG. 図3A及び図3Bは、車幅方向に変位しつつ車両前後方向に移動する図1のスライドドアとその移動経路を示す平面図。3A and 3B are plan views showing a slide door of FIG. 1 that moves in the vehicle front-rear direction while being displaced in the vehicle width direction, and a movement path thereof. 図4A及び図4Bは、図1のステップ装置の平面図。4A and 4B are plan views of the step device of FIG. 図5A及び図5Bは、図1のステップ装置の平面図。5A and 5B are plan views of the step device of FIG. 図1のステップ装置の断面図。FIG. 3 is a cross-sectional view of the step device of FIG. 図1のステップ装置の下面図。The bottom view of the step device of FIG. 図1のステップ装置の可動ステップに設けられたガイドレールに係合する連結部材であるガイドローラーユニットを示す断面図。FIG. 5 is a cross-sectional view showing a guide roller unit which is a connecting member engaged with a guide rail provided in a movable step of the step device of FIG. 図8のガイドローラーユニットの分解斜視図。An exploded perspective view of the guide roller unit of FIG. 図10A及び図10Bは、図8のガイドローラーユニットの側面図。10A and 10B are side views of the guide roller unit of FIG. 図8のガイドローラーユニットの作用説明図。The operation explanatory view of the guide roller unit of FIG. 可動ステップが格納位置にある状態における図1のステップ装置の断面図。FIG. 3 is a cross-sectional view of the step device of FIG. 1 in a state where the movable step is in the retracted position. 図1のステップ装置のカバー部材の斜視図。FIG. 3 is a perspective view of a cover member of the step device of FIG. 支持アーム及び支持ブラケットの下方において可動ステップを覆う図13のカバー部材の平面図。FIG. 3 is a plan view of the cover member of FIG. 13 that covers the movable step below the support arm and the support bracket. 図1のステップ装置に設けられた可動ステップの保持機構を構成する係合部材の平面図。FIG. 3 is a plan view of an engaging member constituting a movable step holding mechanism provided in the step device of FIG. 図1のステップ装置に設けられた可動ステップの保持機構を構成する係合部材の平面図。FIG. 3 is a plan view of an engaging member constituting a movable step holding mechanism provided in the step device of FIG. 図15の係合部材の係合突部及びステップ側係合部の拡大図。FIG. 15 is an enlarged view of an engaging protrusion and a step-side engaging portion of the engaging member of FIG. 図15の係合部材の係合突部及びステップ側係合部の拡大図。FIG. 15 is an enlarged view of an engaging protrusion and a step-side engaging portion of the engaging member of FIG. 図15の係合部材の係合爪及び位置保持部材を構成する突起部の拡大図。FIG. 15 is an enlarged view of an engaging claw of the engaging member of FIG. 15 and a protrusion constituting the position holding member. 図15の係合部材の係合爪及び位置保持部材を構成する突起部の拡大図。FIG. 15 is an enlarged view of an engaging claw of the engaging member of FIG. 15 and a protrusion constituting the position holding member. 図15の保持機構の作用説明図。FIG. 15 is an explanatory view of the operation of the holding mechanism of FIG. 図15の保持機構の作用説明図。FIG. 15 is an explanatory view of the operation of the holding mechanism of FIG. 別例のストッパ部近傍の拡大図。An enlarged view of the vicinity of the stopper portion of another example.
 以下、車両用ステップ装置に関する一実施形態を図面に従って説明する。 Hereinafter, an embodiment of the vehicle step device will be described with reference to the drawings.
 図1に示すように、車両1は、スライドドア4を備えている。スライドドア4は、車両前後方向に移動することにより車体2の側面に設けられたドア開口部3を開閉可能である。車両前後方向は、図2の左右方向に対応する。 As shown in FIG. 1, the vehicle 1 is provided with a sliding door 4. The sliding door 4 can open and close the door opening 3 provided on the side surface of the vehicle body 2 by moving in the front-rear direction of the vehicle. The vehicle front-rear direction corresponds to the left-right direction in FIG.
 詳述すると、図2に示すように、車両1において、車体2の側面には、車両前後方向に延びる複数のガイドレール10が設けられている。具体的には、ガイドレール10は、ドア開口部3の下縁部に配置されたロアレール11、ドア開口部3の後方に配置されたセンターレール12、及びドア開口部3の上縁部に配置されたアッパーレール13を含む。更に、各ガイドレール10には、ガイドローラーユニット20が連結されている。各ガイドローラーユニット20は、各ガイドレール10の延びる方向に沿って移動可能である。そして、車両1においては、各ガイドローラーユニット20を介してスライドドア4が車体2に支持される。これにより、車両前後方向に延びる各ガイドレール10に沿ったスライドドア4の開閉動作が可能となっている。つまり、スライドドア4の移動経路は、車両前後方向に延びている。 More specifically, as shown in FIG. 2, in the vehicle 1, a plurality of guide rails 10 extending in the front-rear direction of the vehicle are provided on the side surface of the vehicle body 2. Specifically, the guide rail 10 is arranged at the lower rail 11 arranged at the lower edge of the door opening 3, the center rail 12 arranged behind the door opening 3, and the upper edge of the door opening 3. The upper rail 13 is included. Further, a guide roller unit 20 is connected to each guide rail 10. Each guide roller unit 20 can move along the extending direction of each guide rail 10. Then, in the vehicle 1, the slide door 4 is supported by the vehicle body 2 via each guide roller unit 20. As a result, the slide door 4 can be opened and closed along each guide rail 10 extending in the front-rear direction of the vehicle. That is, the movement path of the slide door 4 extends in the front-rear direction of the vehicle.
 図3A及び図3Bに示すように、各ガイドレール10は、その車両前方側の長手方向端部10fに、車両後方側から前方側に向かって車幅方向内側(図3中、上側)に湾曲した湾曲形状部30を有している。各ガイドローラーユニット20が各ガイドレール10の長手方向端部10fに位置する状態で、スライドドア4は全閉状態となる。尚、説明の便宜上、図3Aには、ロアレール11及びロアローラーユニット21を図示し、図3Bには、センターレール12及びセンターローラーユニット22を図示し、アッパーレール13及びアッパーローラーユニット23については、その図示を省略する。そして、スライドドア4は、各ガイドレール10に設けられた湾曲形状部30を案内される際に、車幅方向の変位を伴いつつ、車両前後方向に開閉動作する。 As shown in FIGS. 3A and 3B, each guide rail 10 is curved inward in the vehicle width direction (upper side in FIG. 3) from the rear side to the front side of the vehicle toward the longitudinal end portion 10f on the front side of the vehicle. It has a curved shape portion 30. The slide door 4 is fully closed with each guide roller unit 20 located at the longitudinal end 10f of each guide rail 10. For convenience of explanation, the lower rail 11 and the lower roller unit 21 are shown in FIG. 3A, the center rail 12 and the center roller unit 22 are shown in FIG. 3B, and the upper rail 13 and the upper roller unit 23 are shown. The illustration is omitted. Then, when the sliding door 4 is guided by the curved shape portion 30 provided on each guide rail 10, the sliding door 4 opens and closes in the vehicle front-rear direction with displacement in the vehicle width direction.
 スライドドア4は、全閉位置Pcにある場合、その外表面4aが車体2の側面2aに対して略面一となるように構成されている。また、このような全閉位置Pcから開動作する場合、スライドドア4は、車幅方向外側に変位しつつ、車両後方側に移動する。つまり、スライドドア4が車幅方向に変位する幅方向変位区間Rcは、スライドドア4の移動経路Rにおける全閉位置Pcが存在する側に位置している。尚、図3中、一点鎖線は、開閉動作するスライドドア4、詳しくは、その前端部分の軌跡を示している。車両1は、これにより、開閉動作するスライドドア4が車体2に干渉しない構成になっている。 When the slide door 4 is in the fully closed position Pc, its outer surface 4a is configured to be substantially flush with the side surface 2a of the vehicle body 2. Further, when the sliding door 4 is opened from such a fully closed position Pc, the sliding door 4 moves to the rear side of the vehicle while being displaced outward in the vehicle width direction. That is, the width direction displacement section Rc in which the slide door 4 is displaced in the vehicle width direction is located on the side where the fully closed position Pc exists in the movement path R of the slide door 4. In FIG. 3, the alternate long and short dash line indicates the locus of the sliding door 4 that opens and closes, specifically, the front end portion thereof. As a result, the vehicle 1 is configured such that the sliding door 4 that opens and closes does not interfere with the vehicle body 2.
 図2に示すように、車両1には、モータ31mを駆動源として、スライドドア4を開閉動作させるパワースライドドア装置31が設けられている。車両1は、これにより、乗員による手動操作に限らず、図示しないドアハンドル又は車室内等に設けられた操作スイッチ、或いは携帯機を操作することにより、スライドドア4を開閉動作させることが可能となっている。 As shown in FIG. 2, the vehicle 1 is provided with a power slide door device 31 that opens and closes the slide door 4 using a motor 31 m as a drive source. As a result, the vehicle 1 can open and close the slide door 4 by operating a door handle (not shown), an operation switch provided in the vehicle interior, or a portable device, not limited to manual operation by the occupant. It has become.
 図1及び図2に示すように、車両1には、車両1に乗降する乗員の利用に供するステップ装置41が設けられている。ステップ装置41は、ドア開口部3の下方に踏み台であるステップ部材40を展開する。 As shown in FIGS. 1 and 2, the vehicle 1 is provided with a step device 41 for use by occupants getting on and off the vehicle 1. The step device 41 deploys the step member 40, which is a stepping stone, below the door opening 3.
 詳述すると、図4A、図4B、図5A、図5B及び図6に示すように、ステップ装置41は、車幅方向に移動可能な状態でドア開口部3の下方に支持される可動ステップ42と、車体2に固定された状態で可動ステップ42とともにドア開口部3の下方に配置されるサブステップ43と、を備えている。尚、図4A、図4B、図5A及び図5Bにおいては、それぞれ上下方向が車幅方向であり、図6においては、左右方向が車幅方向である。ステップ装置41において、サブステップ43は、可動ステップ42よりも上方の位置に設けられている。具体的には、サブステップ43は、車体2の側面2aに固定される基部45と、基部45に対して回動可能に連結されたステップ部46と、を備えている。ステップ部46は、その連結軸46x周りの回動により上下方向に変位する。サブステップ43は、ステップ部46が上下方向に変位することにより、サブステップ43の下方に配置された可動ステップ42の上面42aに当接する構成になっている。 More specifically, as shown in FIGS. 4A, 4B, 5A, 5B and 6, the step device 41 is a movable step 42 supported below the door opening 3 in a state of being movable in the vehicle width direction. A sub-step 43, which is fixed to the vehicle body 2 and arranged below the door opening 3 together with the movable step 42, is provided. In addition, in FIG. 4A, FIG. 4B, FIG. 5A and FIG. 5B, the vertical direction is the vehicle width direction, and in FIG. 6, the left-right direction is the vehicle width direction. In the step device 41, the sub step 43 is provided at a position above the movable step 42. Specifically, the sub-step 43 includes a base portion 45 fixed to the side surface 2a of the vehicle body 2 and a step portion 46 rotatably connected to the base portion 45. The step portion 46 is displaced in the vertical direction by rotation around the connecting shaft 46x. The sub-step 43 has a configuration in which the step portion 46 is displaced in the vertical direction so as to come into contact with the upper surface 42a of the movable step 42 arranged below the sub-step 43.
 図5A、図5B、図6及び図7に示すように、ステップ装置41は、車体2に対して回動可能に連結されるとともに可動ステップ42に対して回動可能に連結される複数の支持アーム47を備えている。ステップ装置41において、各支持アーム47は、車体2の下面2bに固定される複数の支持ブラケット48を介して車体2に連結されている。更に、各支持アーム47は、各支持ブラケット48に対する第1回動連結点M1を支点に回動するとともに、可動ステップ42に対する第2回動連結点M2を支点に回動する。これにより、これら支持アーム47に支持された可動ステップ42が、略水平な姿勢を維持したまま、サブステップ43の下方を車幅方向に移動する。 As shown in FIGS. 5A, 5B, 6 and 7, the step device 41 is rotatably connected to the vehicle body 2 and rotatably connected to the movable step 42. It is equipped with an arm 47. In the step device 41, each support arm 47 is connected to the vehicle body 2 via a plurality of support brackets 48 fixed to the lower surface 2b of the vehicle body 2. Further, each support arm 47 rotates with the first rotation connection point M1 with respect to each support bracket 48 as a fulcrum, and rotates with the second rotation connection point M2 with respect to the movable step 42 as a fulcrum. As a result, the movable step 42 supported by the support arms 47 moves in the vehicle width direction below the sub step 43 while maintaining a substantially horizontal posture.
 支持アーム47は、車両前後方向に離間して配置される二本のメインアーム51と、これらの両メインアーム51間に配置されるサブアーム52と、を含む。サブアーム52は、車体2に連結される基端側アーム53と可動ステップ42に連結される先端側アーム54とを回動可能に連結することにより形成されている。即ち、サブアーム52は、折曲可能な関節M3を有している。支持ブラケット48は、前方メインアーム51f及びサブアーム52を車体2に連結する前方ブラケット48fと、後方メインアーム51rを車体2に連結する後方ブラケット48rと、を含む。 The support arm 47 includes two main arms 51 arranged apart from each other in the front-rear direction of the vehicle, and a sub-arm 52 arranged between the two main arms 51. The sub-arm 52 is formed by rotatably connecting the base end side arm 53 connected to the vehicle body 2 and the tip end side arm 54 connected to the movable step 42. That is, the sub-arm 52 has a bendable joint M3. The support bracket 48 includes a front bracket 48f that connects the front main arm 51f and the sub arm 52 to the vehicle body 2, and a rear bracket 48r that connects the rear main arm 51r to the vehicle body 2.
 図4A、図4B、図5A、図5B及び図6に示すように、可動ステップ42は、サブステップ43の下方を車幅方向外側に移動することにより、サブステップ43よりも車幅外側方向に突出した展開位置P2に配置される。更に、サブステップ43は、可動ステップ42が展開位置P2にある場合においても、可動ステップ42の上面42aに対してステップ部46が当接する状態を維持する。ステップ部46の意匠面46sが、可動ステップ42のステップ面S1と一体のステップ面S2を形成する。 As shown in FIGS. 4A, 4B, 5A, 5B, and 6, the movable step 42 moves outward in the vehicle width direction below the sub step 43, so that the movable step 42 moves outward in the vehicle width direction from the sub step 43. It is arranged at the protruding deployment position P2. Further, the sub-step 43 maintains a state in which the step portion 46 is in contact with the upper surface 42a of the movable step 42 even when the movable step 42 is in the deployed position P2. The design surface 46s of the step portion 46 forms a step surface S2 integrated with the step surface S1 of the movable step 42.
 図4A、図4B、図6及び図7に示すように、可動ステップ42は、略平板状の外形を有した可動ベース55と、可動ベース55の上方を覆う樹脂カバー56と、を備えている。更に、サブステップ43の基部45及びステップ部46もまた、それぞれ、略平板状の外形を有したベース部材57に対し、樹脂カバー58を積層することにより形成されている。樹脂カバー58は、それぞれ、基部45及びステップ部46の意匠面45s,46sを構成する。これにより、可動ステップ42の樹脂カバー56及びサブステップ43のステップ部46を覆う樹脂カバー58が、それぞれ、ステップ面S1,S2を形成する。 As shown in FIGS. 4A, 4B, 6 and 7, the movable step 42 includes a movable base 55 having a substantially flat outer shape, and a resin cover 56 that covers the upper part of the movable base 55. .. Further, the base portion 45 and the step portion 46 of the sub-step 43 are also formed by laminating the resin cover 58 on the base member 57 having a substantially flat outer shape, respectively. The resin cover 58 constitutes the design surfaces 45s and 46s of the base portion 45 and the step portion 46, respectively. As a result, the resin cover 56 of the movable step 42 and the resin cover 58 covering the step portion 46 of the sub step 43 form the step surfaces S1 and S2, respectively.
 図4A~図8に示すように、ステップ装置41は、車両前後方向に延在する可動ステップ42の長手方向に沿うように、その下面42bに設けられたガイドレール60を備えている。 As shown in FIGS. 4A to 8, the step device 41 includes a guide rail 60 provided on the lower surface 42b of the movable step 42 extending in the front-rear direction of the vehicle along the longitudinal direction of the movable step 42.
 図7及び図8に示すように、ガイドレール60は、車幅方向に対向する一対の側壁部61,62を備えている。更に、ガイドレール60は、車幅方向内側に位置する側壁部62から車幅方向外側の側壁部61に向かって延びる抜け止めフランジ63を備えている。抜け止めフランジ63は、側壁部62からの下端部を折り曲げることにより形成されている。ステップ装置41は、ガイドレール60の両側壁部61,62間に配置されるガイドローラー65を有するガイドローラーユニット70を備えている。ガイドローラーユニット70は、スライドドア4に支持される。 As shown in FIGS. 7 and 8, the guide rail 60 includes a pair of side wall portions 61 and 62 facing each other in the vehicle width direction. Further, the guide rail 60 includes a retaining flange 63 extending from the side wall portion 62 located inside in the vehicle width direction toward the side wall portion 61 outside in the vehicle width direction. The retaining flange 63 is formed by bending the lower end portion from the side wall portion 62. The step device 41 includes a guide roller unit 70 having a guide roller 65 arranged between both side wall portions 61 and 62 of the guide rail 60. The guide roller unit 70 is supported by the slide door 4.
 ガイドローラーユニット70は、スライドドア4の開閉動作に基づいて、スライドドア4と一体に移動する。これにより、ガイドレール60内に配置されたガイドローラー65もまた、スライドドア4の動作方向に応じて車両前後方向に移動する。ガイドレール60は、側壁部62の下端に設けられた抜け止めフランジ63によって、両側壁部61,62間に配置されたガイドローラー65の脱離を防止する。そして、ガイドローラーユニット70は、ガイドローラー65が車幅方向外側に位置するガイドレール60の側壁部61、又は車幅方向内側に位置するガイドレール60の側壁部62に擦れながら押圧することにより、ガイドレール60が設けられた可動ステップ42を車幅方向に移動させる構成になっている。 The guide roller unit 70 moves integrally with the slide door 4 based on the opening / closing operation of the slide door 4. As a result, the guide roller 65 arranged in the guide rail 60 also moves in the vehicle front-rear direction according to the operating direction of the slide door 4. The guide rail 60 prevents the guide rollers 65 arranged between the side wall portions 61 and 62 from coming off by the retaining flange 63 provided at the lower end of the side wall portion 62. Then, the guide roller unit 70 is pressed by the guide roller 65 against the side wall portion 61 of the guide rail 60 located on the outer side in the vehicle width direction or the side wall portion 62 of the guide rail 60 located on the inner side in the vehicle width direction while rubbing. The movable step 42 provided with the guide rail 60 is configured to move in the vehicle width direction.
 具体的には、ガイドローラー65が、車幅方向外側に位置するガイドレール60の側壁部61に当接するとともに、側壁部61を押圧しつつ、ガイドレール60内をスライドドア4の開動作方向である車両後方側に向かって移動する。これにより、ガイドローラーユニット70は、可動ステップ42を車幅方向外側に移動させる。また、ガイドローラー65が、車幅方向内側に位置するガイドレール60の側壁部62に当接するとともに、側壁部62を押圧しつつ、ガイドレール60内をスライドドア4の閉動作方向である車両前方側に向かって移動する。これにより、ガイドローラーユニット70は、可動ステップ42を車幅方向内側に移動させる。ステップ装置41は、スライドドア4の開動作に連動して、可動ステップ42を格納位置P1から展開位置P2に移動させる一方、スライドドア4の閉動作に連動して、可動ステップ42を展開位置P2から格納位置P1に移動させる構成になっている(図4A~図5B参照)。 Specifically, the guide roller 65 abuts on the side wall portion 61 of the guide rail 60 located outside in the vehicle width direction, and while pressing the side wall portion 61, the inside of the guide rail 60 is moved in the opening operation direction of the slide door 4. Move toward the rear side of a vehicle. As a result, the guide roller unit 70 moves the movable step 42 outward in the vehicle width direction. Further, the guide roller 65 abuts on the side wall portion 62 of the guide rail 60 located inside in the vehicle width direction, and while pressing the side wall portion 62, the inside of the guide rail 60 is in the vehicle front in the closing operation direction of the slide door 4. Move towards the side. As a result, the guide roller unit 70 moves the movable step 42 inward in the vehicle width direction. The step device 41 moves the movable step 42 from the storage position P1 to the deployment position P2 in conjunction with the opening operation of the slide door 4, while moving the movable step 42 to the deployment position P2 in conjunction with the closing operation of the slide door 4. It is configured to move from to the storage position P1 (see FIGS. 4A to 5B).
 尚、図4A~図5B及び図7に示すように、ガイドレール60は、スライドドア4の各ガイドレール10に設けられた上記湾曲形状部30と同様、車両前方側の長手方向端部60fに、車両後方側から前方側に向かって車幅方向内側に湾曲した湾曲形状部60cを備えている。ガイドローラーユニット70がガイドレール60の長手方向端部60fに位置する状態で、スライドドア4は全閉状態となる。ステップ装置41は、スライドドア4の開閉動作に基づいて、ガイドレール60内をガイドローラー65が円滑に移動することで、可動ステップ42を穏やかに車幅方向に移動させることが可能になっている。 As shown in FIGS. 4A to 5B and 7, the guide rail 60 is provided at the longitudinal end portion 60f on the front side of the vehicle, similarly to the curved shape portion 30 provided on each guide rail 10 of the slide door 4. A curved shape portion 60c that is curved inward in the vehicle width direction from the rear side of the vehicle to the front side is provided. The slide door 4 is fully closed with the guide roller unit 70 located at the longitudinal end 60f of the guide rail 60. In the step device 41, the movable step 42 can be gently moved in the vehicle width direction by the guide roller 65 smoothly moving in the guide rail 60 based on the opening / closing operation of the slide door 4. ..
 さらに詳述すると、図9、図10A、図10B及び図11に示すように、ガイドローラーユニット70は、上下方向に延在する状態でスライドドア4に固定される固定部材71と、固定部材71の下端に対して回動可能に連結されたアーム部材72と、を備えている。ガイドローラーユニット70において、アーム部材72は、その回動軸となる軸状部材73を介して固定部材71に連結されている。これにより、アーム部材72の先端側が車幅方向内側に延びている。更に、アーム部材72の先端には、上下方向に延びる支軸65xが設けられている。ガイドローラーユニット70は、支軸65xによって、ガイドローラー65を回転自在に支持する構成になっている。 More specifically, as shown in FIGS. 9, 10A, 10B and 11, the guide roller unit 70 has a fixing member 71 fixed to the slide door 4 in a vertically extending state, and a fixing member 71. The arm member 72 is rotatably connected to the lower end of the arm member 72. In the guide roller unit 70, the arm member 72 is connected to the fixing member 71 via a shaft-shaped member 73 that serves as a rotation shaft thereof. As a result, the tip end side of the arm member 72 extends inward in the vehicle width direction. Further, a support shaft 65x extending in the vertical direction is provided at the tip of the arm member 72. The guide roller unit 70 is configured to rotatably support the guide roller 65 by the support shaft 65x.
 ガイドローラーユニット70は、軸状部材73の外周に嵌まった状態で固定部材71とアーム部材72との間に介在される捩りコイルバネ75を備えている。固定部材71がスライドドア4に固定された状態で、アーム部材72の先端に支持されたガイドローラー65を上方に持ち上げる方向の付勢力が、付勢部材である捩りコイルバネ75の弾性力に基づいて、アーム部材72に付与される。 The guide roller unit 70 includes a torsion coil spring 75 interposed between the fixing member 71 and the arm member 72 in a state of being fitted on the outer circumference of the shaft-shaped member 73. With the fixing member 71 fixed to the slide door 4, the urging force in the direction of lifting the guide roller 65 supported by the tip of the arm member 72 upward is based on the elastic force of the torsion coil spring 75 which is the urging member. , Is attached to the arm member 72.
 即ち、ガイドローラー65が可動ステップ42に設けられたガイドレール60に連結された連結状態においては、捩りコイルバネ75の付勢力に基づきアーム部材72の先端側を上方に持ち上げるかたちで、ガイドレール60内でガイドローラー65が支持される(図10A参照)。また、ガイドレール60からガイドローラー65が脱離した非連結状態においては、捩りコイルバネ75の付勢力に基づいて、ガイドローラー65を支持する先端側を固定部材71の上端部分に近づける形で更にアーム部材72が回動する(図10B参照)。ガイドローラーユニット70をコンパクトに折り畳むことで、非連結状態における作業性が向上するとともに、ガイドローラーユニット70がスライドドア4を利用する乗員の邪魔にならない。 That is, in the connected state in which the guide roller 65 is connected to the guide rail 60 provided in the movable step 42, the tip side of the arm member 72 is lifted upward based on the urging force of the torsion coil spring 75, and the inside of the guide rail 60 is lifted. The guide roller 65 is supported by (see FIG. 10A). Further, in the unconnected state in which the guide roller 65 is detached from the guide rail 60, the arm is further brought closer to the upper end portion of the fixing member 71 based on the urging force of the torsion coil spring 75. The member 72 rotates (see FIG. 10B). By compactly folding the guide roller unit 70, workability in a non-connected state is improved, and the guide roller unit 70 does not interfere with the occupant using the slide door 4.
 具体的には、図7及び図11に示すように、ガイドレール60は、側壁部62の下端に設けられた抜け止めフランジ63の一部が切り欠かれた切欠き部77を有している。より具体的には、ガイドレール60は、湾曲形状部60cよりも車両後方側の位置に設けられた複数の切欠き部77を有している。そして、ステップ装置41は、切欠き部77を利用することにより、可動ステップ42の下面42b側に設けられたガイドレール60に対し、スライドドア4に支持されたガイドローラーユニット70のガイドローラー65を挿入及び脱離することが可能になっている。 Specifically, as shown in FIGS. 7 and 11, the guide rail 60 has a notch portion 77 in which a part of the retaining flange 63 provided at the lower end of the side wall portion 62 is cut out. .. More specifically, the guide rail 60 has a plurality of notches 77 provided at positions on the rear side of the vehicle with respect to the curved shape portion 60c. Then, the step device 41 uses the notch 77 to provide the guide roller 65 of the guide roller unit 70 supported by the slide door 4 with respect to the guide rail 60 provided on the lower surface 42b side of the movable step 42. It can be inserted and removed.
 即ち、図11に示すように、ガイドレール60は、切欠き部77が設けられた長手方向位置において、側壁部62の下端に設けられた抜け止めフランジ63を越えるガイドローラー65の上下方向移動を許容する。更に、ガイドローラーユニット70は、アーム部材72を下方に押し下げることにより、捩りコイルバネ75の付勢力に抗してアーム部材72を回動させることができる。ガイドローラーユニット70は、この押し下げ力を開放することで、再び、捩りコイルバネ75の付勢力に基づいてアーム部材72を回動させることができる。 That is, as shown in FIG. 11, the guide rail 60 moves the guide roller 65 in the vertical direction over the retaining flange 63 provided at the lower end of the side wall portion 62 at the longitudinal position where the notch portion 77 is provided. Tolerate. Further, the guide roller unit 70 can rotate the arm member 72 against the urging force of the torsion coil spring 75 by pushing the arm member 72 downward. By releasing this pushing force, the guide roller unit 70 can rotate the arm member 72 again based on the urging force of the torsion coil spring 75.
 つまり、ステップ装置41は、ガイドレール60に設けられた切欠き部77を利用しつつ、捩りコイルバネ75の付勢力に基づいてアーム部材72を回動させることにより、アーム部材72の先端に設けられたガイドローラー65を、下方からガイドレール60内に挿入することができる。また、捩りコイルバネ75の付勢力に抗してアーム部材72を回動させることより、ガイドレール60内に支持されたガイドローラー65を、ガイドレール60の下方に脱離させることができる。ステップ装置41は、これにより、容易に、ガイドローラーユニット70を支持するスライドドア4と、ガイドレール60が設けられた可動ステップ42との連結、及びその解除を行うことが可能になっている。 That is, the step device 41 is provided at the tip of the arm member 72 by rotating the arm member 72 based on the urging force of the torsion coil spring 75 while utilizing the notch 77 provided in the guide rail 60. The guide roller 65 can be inserted into the guide rail 60 from below. Further, by rotating the arm member 72 against the urging force of the torsion coil spring 75, the guide roller 65 supported in the guide rail 60 can be detached below the guide rail 60. As a result, the step device 41 can easily connect and disconnect the slide door 4 that supports the guide roller unit 70 and the movable step 42 provided with the guide rail 60.
 図12~図14に示すように、ステップ装置41は、車体2の下面2bに固定されることにより上記各支持アーム47の下方を覆うカバー部材80を備えている。 As shown in FIGS. 12 to 14, the step device 41 includes a cover member 80 that covers the lower side of each of the support arms 47 by being fixed to the lower surface 2b of the vehicle body 2.
 詳述すると、カバー部材80は、各支持アーム47の下方に配置される底壁部81と、底壁部81の縁部に略直交するように設けられる周壁部82と、を備えている。周壁部82は、車体2の下面2bに向かって上方に延びている。カバー部材80において、底壁部81は、可動ステップ42が格納位置P1にある場合に、各支持アーム47の下方から可動ステップ42を覆う大きさに形成されている。更に、周壁部82は、車両前方側、車幅方向内側、及び後方側に延在するかたちで、底壁部81の縁部に略直交するように設けられている。カバー部材80は、これにより、車体2の下面2bよりも下方の位置に、車幅方向外側に開口する収容空間83を形成する。 More specifically, the cover member 80 includes a bottom wall portion 81 arranged below each support arm 47, and a peripheral wall portion 82 provided so as to be substantially orthogonal to the edge portion of the bottom wall portion 81. The peripheral wall portion 82 extends upward toward the lower surface 2b of the vehicle body 2. In the cover member 80, the bottom wall portion 81 is formed in a size that covers the movable step 42 from below each support arm 47 when the movable step 42 is in the storage position P1. Further, the peripheral wall portion 82 is provided so as to extend to the front side of the vehicle, the inside in the vehicle width direction, and the rear side so as to be substantially orthogonal to the edge portion of the bottom wall portion 81. As a result, the cover member 80 forms a storage space 83 that opens outward in the vehicle width direction at a position below the lower surface 2b of the vehicle body 2.
 具体的には、カバー部材80は、各支持アーム47の支持ブラケット48とともに車体2の下面2bに共締めされる。また、カバー部材80は、上方に位置する車体2の下面2b及びサブステップ43のステップ部46との間に収容空間83を形成する。これにより、可動ステップ42が格納位置P1にある場合において、可動ステップ42の略全体が各支持アーム47とともに、収容空間83内に収容される。 Specifically, the cover member 80 is fastened together with the support bracket 48 of each support arm 47 to the lower surface 2b of the vehicle body 2. Further, the cover member 80 forms an accommodation space 83 between the lower surface 2b of the vehicle body 2 located above and the step portion 46 of the sub-step 43. As a result, when the movable step 42 is in the storage position P1, substantially the entire movable step 42 is accommodated in the accommodation space 83 together with each support arm 47.
 可動ステップ42が格納位置P1にある場合、車幅方向外側に臨む収容空間83の開口部83xが、スライドドア4の下端に設けられた意匠部材84(図6参照)により遮蔽される。ステップ装置41は、これにより、車両1の走行時、車幅方向外側の開口部分を介した収容空間83内への異物の侵入を防ぐ構成になっている。 When the movable step 42 is in the storage position P1, the opening 83x of the accommodation space 83 facing the outside in the vehicle width direction is shielded by the design member 84 (see FIG. 6) provided at the lower end of the slide door 4. As a result, the step device 41 is configured to prevent foreign matter from entering the accommodation space 83 through the opening portion on the outer side in the vehicle width direction when the vehicle 1 is traveling.
 (可動ステップの保持機構)
 次に、可動ステップ42の保持機構について説明する。
(Movable step holding mechanism)
Next, the holding mechanism of the movable step 42 will be described.
 図14~図16に示すように、ステップ装置41は、可動ステップ42に設けられたガイドレール60からガイドローラーユニット70が脱離した状態、即ちスライドドア4との連結が解除された状態において、可動ステップ42を車幅方向内側の格納位置P1に保持することが可能な保持機構100を備えている。 As shown in FIGS. 14 to 16, the step device 41 is in a state where the guide roller unit 70 is detached from the guide rail 60 provided in the movable step 42, that is, in a state where the connection with the slide door 4 is released. A holding mechanism 100 capable of holding the movable step 42 at the storage position P1 inside in the vehicle width direction is provided.
 保持機構100は、格納位置P1に移動した可動ステップ42の収容空間83を形成するカバー部材80に設けられている。具体的には、保持機構100は、カバー部材80の前端部80f近傍に設けられている。また、保持機構100は、カバー部材80の底壁部81に略直交する支軸110x周りに回動するレバー部材110を含む係合部材111を備えている。更に、係合部材111は、可動ステップ42が格納位置P1に移動した状態で、支軸110x周りに回動することにより、可動ステップ42に設けられたステップ側係合部120に対して係合及び脱離する。係合部材111は、車幅方向に移動する可動ステップ42に干渉しないアンロック位置X0と、可動ステップ42を格納位置P1に保持するロック位置X1との間で移動可能である。 The holding mechanism 100 is provided on the cover member 80 that forms the accommodation space 83 of the movable step 42 that has moved to the storage position P1. Specifically, the holding mechanism 100 is provided in the vicinity of the front end portion 80f of the cover member 80. Further, the holding mechanism 100 includes an engaging member 111 including a lever member 110 that rotates around a support shaft 110x that is substantially orthogonal to the bottom wall portion 81 of the cover member 80. Further, the engaging member 111 engages with the step-side engaging portion 120 provided in the movable step 42 by rotating around the support shaft 110x in a state where the movable step 42 is moved to the storage position P1. And detach. The engaging member 111 is movable between an unlock position X0 that does not interfere with the movable step 42 that moves in the vehicle width direction and a lock position X1 that holds the movable step 42 at the storage position P1.
 詳述すると、係合部材111は、車幅方向に延在するレバー本体131と、レバー本体131の先端部131aから突出した係合突部132と、を備えている。レバー本体131の基端部131bには、支軸110xが設けられている。係合突部132は、支軸110xの周方向に延びている。具体的には、保持機構100は、カバー部材80が形成する可動ステップ42の収容空間83において、車幅方向内側に位置する周壁部82の近傍に、係合部材111の支軸110xを有している。係合突部132は、車幅方向外側(各図中、下側)に向かって延びるレバー本体131の先端部131aから、車両後方側(各図中、右側)に向かって突出する。 More specifically, the engaging member 111 includes a lever main body 131 extending in the vehicle width direction and an engaging protrusion 132 protruding from the tip end portion 131a of the lever main body 131. A support shaft 110x is provided at the base end portion 131b of the lever body 131. The engaging protrusion 132 extends in the circumferential direction of the support shaft 110x. Specifically, the holding mechanism 100 has a support shaft 110x of the engaging member 111 in the vicinity of the peripheral wall portion 82 located inside in the vehicle width direction in the accommodation space 83 of the movable step 42 formed by the cover member 80. ing. The engaging protrusion 132 projects from the tip 131a of the lever body 131 extending toward the outside in the vehicle width direction (lower side in each drawing) toward the rear side of the vehicle (right side in each drawing).
 図17及び図18に示すように、可動ステップ42の前端部42fには、車両前方側に開口する係合凹部135が設けられている。係合凹部135は、ステップ側係合部120である。そして、ロック位置X1に移動した係合部材111が、可動ステップ42に係合する。 As shown in FIGS. 17 and 18, the front end portion 42f of the movable step 42 is provided with an engaging recess 135 that opens to the front side of the vehicle. The engaging recess 135 is a step-side engaging portion 120. Then, the engaging member 111 that has moved to the lock position X1 engages with the movable step 42.
 即ち、図15及び図16において、係合部材111は、支軸110xを中心として反時計回りに回動することにより、アンロック位置X0からロック位置X1に移動する。係合部材111は、支軸110xを中心として時計回りに回動することにより、ロック位置X1からアンロック位置X0に移動する。 That is, in FIGS. 15 and 16, the engaging member 111 moves from the unlock position X0 to the lock position X1 by rotating counterclockwise around the support shaft 110x. The engaging member 111 moves from the lock position X1 to the unlock position X0 by rotating clockwise around the support shaft 110x.
 図15~図18に示すように、可動ステップ42が格納位置P1に移動した状態で支軸110x周りに回動することにより、レバー本体131の先端部131aから突出した係合突部132が、ステップ側係合部120である係合凹部135に対し、挿入及び脱離される。係合部材111は、これにより、可動ステップ42を格納位置P1に保持すること、及び、その保持状態を解除することが可能となっている。 As shown in FIGS. 15 to 18, the engaging protrusion 132 protruding from the tip 131a of the lever body 131 is formed by rotating the movable step 42 around the support shaft 110x while moving to the storage position P1. It is inserted and detached from the engaging recess 135, which is the step-side engaging portion 120. As a result, the engaging member 111 can hold the movable step 42 at the storage position P1 and release the holding state.
 係合突部132の先端部には、湾曲面133sを有した面取り部133が設けられている。保持機構100は、これにより、係合部材111の回動によって、円滑に、係合突部132を係合凹部135に挿入及び脱離させることが可能となっている。 A chamfered portion 133 having a curved surface 133s is provided at the tip of the engaging protrusion 132. As a result, the holding mechanism 100 can smoothly insert and disengage the engaging protrusion 132 into the engaging recess 135 by rotating the engaging member 111.
 図19及び図20に示すように、係合部材111には、レバー本体131の基端部131bから支軸110xの径方向に突出する係合爪140が設けられている。具体的には、係合爪140は、先端側に向かって先細りとなる三角形状を有している。係合爪140は、車幅方向内側に向かって突出している。更に、係合爪140に対向するカバー部材80の周壁部82には、車幅方向外側に突出した突起部141が設けられている。突起部141は、車両前後方向において、係合部材111の支軸110xの位置と略同一の位置に設けられている。係合部材111は、突起部141に係合爪140が係合することで、ロック位置X1又はアンロック位置X0に保持される。 As shown in FIGS. 19 and 20, the engaging member 111 is provided with an engaging claw 140 that protrudes in the radial direction of the support shaft 110x from the base end portion 131b of the lever body 131. Specifically, the engaging claw 140 has a triangular shape that tapers toward the tip end side. The engaging claw 140 projects inward in the vehicle width direction. Further, the peripheral wall portion 82 of the cover member 80 facing the engaging claw 140 is provided with a protrusion 141 protruding outward in the vehicle width direction. The protrusion 141 is provided at a position substantially the same as the position of the support shaft 110x of the engaging member 111 in the vehicle front-rear direction. The engaging member 111 is held at the lock position X1 or the unlock position X0 by engaging the engaging claw 140 with the protrusion 141.
 即ち、図15及び図19に示すように、突起部141は、その車両前方側(各図中、左側)に係合部材111の係合爪140が位置する状態で当該係合爪140に係合することにより、係合部材111がロック位置X1からアンロック位置X0に移動するアンロック方向の回動を規制する。これにより、突起部141が、係合部材111をロック位置X1に保持する位置保持部材150として用いられる。 That is, as shown in FIGS. 15 and 19, the protrusion 141 engages with the engaging claw 140 in a state where the engaging claw 140 of the engaging member 111 is located on the front side (left side in each drawing) of the vehicle. By engaging the members 111, the rotation of the engaging member 111 from the lock position X1 to the unlock position X0 in the unlock direction is restricted. As a result, the protrusion 141 is used as the position holding member 150 that holds the engaging member 111 at the lock position X1.
 係合爪140に対する突起部141の係合面141sは、湾曲面142を含む。湾曲面142は、突起部141が突出する方向に位置する係合部材111の支軸110xに向かって膨出する断面略円弧状である。更に、保持機構100は、突起部141と係合爪140との係合力であって、係合面141sの湾曲面形状に基づく係合力に抗して係合部材111をアンロック方向に回動させることが可能となっている。即ち、係合部材111に対して、位置保持部材150を構成する突起部141との係合力を上回るアンロック方向の操作力を加えることにより、係合爪140が突起部141を乗り越えるかたちで、係合爪140を突起部141から脱離させることが可能となっている。これにより、係合部材111は、各図中、時計回り方向に回動することで、ロック位置X1からアンロック位置X0に移動する。 The engaging surface 141s of the protrusion 141 with respect to the engaging claw 140 includes a curved surface 142. The curved surface 142 has a substantially arcuate cross section that bulges toward the support shaft 110x of the engaging member 111 located in the direction in which the protrusion 141 protrudes. Further, the holding mechanism 100 rotates the engaging member 111 in the unlocking direction against the engaging force based on the curved surface shape of the engaging surface 141s, which is the engaging force between the protrusion 141 and the engaging claw 140. It is possible to make it. That is, by applying an operating force in the unlocking direction to the engaging member 111, which exceeds the engaging force with the protrusion 141 constituting the position holding member 150, the engaging claw 140 overcomes the protrusion 141. The engaging claw 140 can be detached from the protrusion 141. As a result, the engaging member 111 moves from the lock position X1 to the unlock position X0 by rotating in the clockwise direction in each drawing.
 図16及び図20に示すように、上記突起部141は、その車両後方側(各図中、右側)に係合部材111の係合爪140が位置する状態で当該係合爪140が係合することにより、係合部材111がアンロック位置X0からロック位置X1に移動するロック方向の回動を規制する。この場合においてもまた、係合部材111に対して、位置保持部材150を構成する突起部141との係合力を上回るロック方向の操作力を加えることにより、係合爪140が突起部141を乗り越えるかたちで、係合爪140を突起部141から脱離させることが可能となっている。これにより、係合部材111は、各図中、反時計回り方向に回動することで、アンロック位置X0からロック位置X1に移動する。 As shown in FIGS. 16 and 20, the engaging claw 140 is engaged with the protruding portion 141 in a state where the engaging claw 140 of the engaging member 111 is located on the rear side (right side in each drawing) of the vehicle. By doing so, the rotation of the engaging member 111 in the locking direction in which the engaging member 111 moves from the unlock position X0 to the lock position X1 is restricted. Also in this case, the engaging claw 140 gets over the protrusion 141 by applying an operating force in the locking direction that exceeds the engaging force with the protrusion 141 constituting the position holding member 150 to the engaging member 111. In this way, the engaging claw 140 can be detached from the protrusion 141. As a result, the engaging member 111 moves from the unlock position X0 to the lock position X1 by rotating in the counterclockwise direction in each drawing.
 図17及び図18に示すように、レバー本体131の先端には、滑り止め部155が設けられている。滑り止め部155は、セレーション状の凹凸形状153を有している。保持機構100は、車幅方向外側に臨む収容空間83の開口部83xから利用者が可動ステップ42のロック操作及びアンロック操作を行う際、係合部材111と位置保持部材150との係合力に抗して、容易に、係合部材111を回動させることが可能となっている。 As shown in FIGS. 17 and 18, a non-slip portion 155 is provided at the tip of the lever body 131. The non-slip portion 155 has a serration-like uneven shape 153. The holding mechanism 100 applies an engaging force between the engaging member 111 and the position holding member 150 when the user locks and unlocks the movable step 42 from the opening 83x of the accommodation space 83 facing the outside in the vehicle width direction. Against this, the engaging member 111 can be easily rotated.
 図19及び図20に示すように、係合部材111は、レバー本体131の長手方向に交差する断面形状が、下側に開口する断面溝字状となるような外形形状を有している。更に、保持機構100は、カバー部材80に設けられたレバー支持部160から突出するストッパ部162を備えている。ストッパ部162は、係合部材111の断面形状が形成する係合凹部161内に配置されている。そして、ストッパ部162は、係合部材111に設けられた係合凹部161の内壁面に係合することにより、支軸100x周りに回動する係合部材111の移動範囲を制限する。 As shown in FIGS. 19 and 20, the engaging member 111 has an outer shape such that the cross-sectional shape of the lever body 131 intersecting in the longitudinal direction has a cross-sectional groove shape that opens downward. Further, the holding mechanism 100 includes a stopper portion 162 protruding from the lever support portion 160 provided on the cover member 80. The stopper portion 162 is arranged in the engaging recess 161 formed by the cross-sectional shape of the engaging member 111. Then, the stopper portion 162 limits the moving range of the engaging member 111 that rotates around the support shaft 100x by engaging with the inner wall surface of the engaging recess 161 provided in the engaging member 111.
 さらに詳述すると、図21に示すように、係合部材111がロック位置X1に移動した状態で、可動ステップ42が車幅方向外側から内側に向かって格納位置P1に移動した場合には、係合部材111は、可動ステップ42に押圧されることで、ロック位置X1からアンロック位置X0に移動する。 More specifically, as shown in FIG. 21, when the movable step 42 moves from the outside to the inside in the vehicle width direction to the storage position P1 while the engaging member 111 has moved to the lock position X1, the engagement member 111 is engaged. The joining member 111 moves from the lock position X1 to the unlock position X0 by being pressed by the movable step 42.
 即ち、上記位置保持部材150と係合部材111との係合力は、スライドドア4の開閉動作に連動して可動ステップ42を移動させる駆動力よりも小さな値に設定されている。これにより、格納位置P1に移動する可動ステップ42の押圧力に基づいて、係合部材111が位置保持部材150から脱離して、アンロック方向に回動する。 That is, the engaging force between the position holding member 150 and the engaging member 111 is set to a value smaller than the driving force for moving the movable step 42 in conjunction with the opening / closing operation of the slide door 4. As a result, the engaging member 111 is detached from the position holding member 150 and rotates in the unlocking direction based on the pressing force of the movable step 42 that moves to the storage position P1.
 具体的には、可動ステップ42が格納位置P1に移動する際、可動ステップ42が、スライドドア4の閉動作に連動した車両前方側への移動を伴いながら車幅方向外側から内側に向かって移動する。このとき、車両後方側に向かって突出する係合突部132が、ステップ側係合部120を構成する係合凹部135に係合することなく、係合突部132の先端部132aが可動ステップ42に押圧される。これにより、可動ステップ42の押圧力が、効率よく、係合部材111をアンロック方向に回動させる力に変換されるようになっている。 Specifically, when the movable step 42 moves to the storage position P1, the movable step 42 moves from the outside to the inside in the vehicle width direction with the movement to the front side of the vehicle linked to the closing operation of the slide door 4. do. At this time, the tip portion 132a of the engaging protrusion 132a is movable step without the engaging protrusion 132 protruding toward the rear side of the vehicle engaging with the engaging recess 135 constituting the step side engaging portion 120. Pressed by 42. As a result, the pressing force of the movable step 42 is efficiently converted into a force that rotates the engaging member 111 in the unlocking direction.
 図22に示すように、係合部材111が可動ステップ42に係合する状態で、可動ステップ42が格納位置P1から車幅方向外側に移動した場合にも、スライドドア4の開動作に連動した駆動力に基づいて、上記位置保持部材150との係合力に抗して係合部材111がアンロック方向に回動する。 As shown in FIG. 22, even when the movable step 42 moves outward in the vehicle width direction from the storage position P1 in a state where the engaging member 111 is engaged with the movable step 42, it is linked to the opening operation of the slide door 4. Based on the driving force, the engaging member 111 rotates in the unlocking direction against the engaging force with the position holding member 150.
 このとき、ステップ側係合部120を構成する係合凹部135の内壁面135sが、係合凹部135内に挿入された係合部材111の係合突部132を押圧する状態で、可動ステップ42が車幅方向外側に移動する。更に、係合突部132は、係合突部132を係合凹部135の内壁面135sが押圧する角度に基づいて、係合凹部135から抜き出される。これにより、車幅方向外側に移動する可動ステップ42が係合部材111を押圧する力を、支軸110x周りに係合部材111を回動させる力に変換することによって、円滑に、係合部材111がロック位置X1からアンロック位置X0に移動する
 次に、本実施形態の作用について説明する。
At this time, the movable step 42 is in a state where the inner wall surface 135s of the engaging recess 135 constituting the step-side engaging portion 120 presses the engaging protrusion 132 of the engaging member 111 inserted into the engaging recess 135. Moves outward in the vehicle width direction. Further, the engaging protrusion 132 is pulled out from the engaging recess 135 based on the angle at which the inner wall surface 135s of the engaging recess 135 presses the engaging protrusion 132. As a result, the force that the movable step 42 that moves outward in the vehicle width direction presses the engaging member 111 is converted into a force that rotates the engaging member 111 around the support shaft 110x, so that the engaging member can be smoothly engaged. 111 moves from the lock position X1 to the unlock position X0 Next, the operation of the present embodiment will be described.
 保持機構100は、係合部材111がロック位置X1に移動した状態で、可動ステップ42が車幅方向外側から内側に向かって格納位置P1に移動した場合、可動ステップ42が係合部材111をアンロック方向に押圧する。また、係合部材111が可動ステップ42に係合する状態で、可動ステップ42が格納位置P1から車幅方向外側に移動した場合にも、可動ステップ42が係合部材111をアンロック方向に押圧する。そして、可動ステップ42がロック位置X1からアンロック位置X0に移動することで、スライドドア4の開閉動作に連動した可動ステップ42の円滑な移動が確保される。 In the holding mechanism 100, when the movable step 42 moves from the outside in the vehicle width direction to the storage position P1 in a state where the engaging member 111 is moved to the lock position X1, the movable step 42 unlocks the engaging member 111. Press in the lock direction. Further, even when the movable step 42 moves outward in the vehicle width direction from the storage position P1 while the engaging member 111 is engaged with the movable step 42, the movable step 42 presses the engaging member 111 in the unlocking direction. do. Then, by moving the movable step 42 from the lock position X1 to the unlock position X0, smooth movement of the movable step 42 linked to the opening / closing operation of the slide door 4 is ensured.
 次に、本実施形態の効果について説明する。 Next, the effect of this embodiment will be described.
 (1)ステップ装置41は、ドア開口部3の下方に支持されるとともに、連結部材であるガイドローラーユニット70を介してスライドドア4に連結されることにより、スライドドア4の開閉動作に連動して車幅方向に移動する可動ステップ42を備える。更に、ステップ装置41は、可動ステップ42に係合することにより可動ステップ42を車幅方向内側の格納位置P1に保持するロック位置X1と、可動ステップ42に干渉しないアンロック位置X0との間で移動可能に設けられた係合部材111を備える。そして、係合部材111がロック位置X1に移動した状態で可動ステップ42が格納位置P1に移動した場合には、係合部材111が可動ステップ42に押圧されて、ロック位置X1からアンロック位置X0に移動する。 (1) The step device 41 is supported below the door opening 3 and is connected to the slide door 4 via a guide roller unit 70 which is a connecting member, so that the step device 41 is interlocked with the opening / closing operation of the slide door 4. A movable step 42 that moves in the vehicle width direction is provided. Further, the step device 41 is between the lock position X1 that holds the movable step 42 at the storage position P1 inside in the vehicle width direction by engaging with the movable step 42 and the unlock position X0 that does not interfere with the movable step 42. A movable engaging member 111 is provided. When the movable step 42 moves to the storage position P1 while the engaging member 111 has moved to the lock position X1, the engaging member 111 is pressed by the movable step 42, and the locking position X1 to the unlocking position X0 Move to.
 上記構成によれば、例えば、誤操作等により、係合部材111がロック位置X1に移動した場合においても、係合部材111が、スライドドア4の閉動作に連動した可動ステップ42の移動を妨げないようにすることができる。これにより、可動ステップ42の円滑な動作を確保することが可能な保持機構100を形成することができる。 According to the above configuration, even when the engaging member 111 moves to the lock position X1 due to, for example, an erroneous operation, the engaging member 111 does not hinder the movement of the movable step 42 linked to the closing operation of the slide door 4. Can be done. Thereby, the holding mechanism 100 capable of ensuring the smooth operation of the movable step 42 can be formed.
 (2)係合部材111は、支軸110x周りに回動するレバー部材110を含む。また、係合部材111は、支軸110xを有したレバー本体131と、支軸110x周りの回動方向に延びるようにレバー本体131から突出した係合突部132とを有する。更に、係合部材111は、可動ステップ42が格納位置P1に移動した状態にある場合に、支軸110x周りに回動することにより、係合突部132が可動ステップ42に設けられたステップ側係合部120に対して係合及び脱離する。そして、係合部材111がロック位置X1に移動した状態で、可動ステップ42が格納位置P1に移動した場合には、ステップ側係合部120と係合突部132とが係合することなく、係合突部132の先端部132aが可動ステップ42に押圧される。 (2) The engaging member 111 includes a lever member 110 that rotates around a support shaft 110x. Further, the engaging member 111 has a lever main body 131 having a support shaft 110x, and an engaging protrusion 132 protruding from the lever main body 131 so as to extend in the rotation direction around the support shaft 110x. Further, when the movable step 42 is in the state of being moved to the storage position P1, the engaging member 111 is rotated around the support shaft 110x so that the engaging protrusion 132 is provided on the movable step 42 on the step side. Engage and disengage with the engaging portion 120. When the movable step 42 moves to the storage position P1 while the engaging member 111 has moved to the lock position X1, the step-side engaging portion 120 and the engaging protrusion 132 do not engage with each other. The tip 132a of the engaging protrusion 132 is pressed against the movable step 42.
 上記構成によれば、スライドドア4の閉動作に連動して車幅方向内側に移動する可動ステップ42が係合部材111を押圧する力を、効率よく、支軸110x周りに係合部材111を回動させる力に変換することができる。これにより、円滑に、係合部材111をロック位置X1からアンロック位置X0に移動させることができる。 According to the above configuration, the force that the movable step 42 that moves inward in the vehicle width direction in conjunction with the closing operation of the slide door 4 presses the engaging member 111 is efficiently applied to the engaging member 111 around the support shaft 110x. It can be converted into a rotating force. As a result, the engaging member 111 can be smoothly moved from the lock position X1 to the unlock position X0.
 (3)ステップ装置41は、係合部材111に係合することにより当該係合部材111をロック位置X1に保持する位置保持部材150を備える。係合部材111は、係合部材111が可動ステップ42に係合する状態で、可動ステップ42が格納位置P1から車幅方向外側に移動した場合に、位置保持部材150との係合力に抗して当該位置保持部材150から脱離することにより、ロック位置X1からアンロック位置X0に移動可能に構成される。 (3) The step device 41 includes a position holding member 150 that holds the engaging member 111 at the lock position X1 by engaging with the engaging member 111. The engaging member 111 resists the engaging force with the position holding member 150 when the movable step 42 moves outward in the vehicle width direction from the storage position P1 in a state where the engaging member 111 is engaged with the movable step 42. By detaching from the position holding member 150, the lock position X1 can be moved to the unlock position X0.
 上記構成によれば、例えば、誤操作等により、係合部材111が可動ステップ42に係合する状態で、スライドドア4の開動作に連動して可動ステップ42が移動した場合においても、可動ステップ42の移動を係合部材111が妨げないようにすることができる。これにより、可動ステップ42の円滑な動作を確保することが可能な保持機構100を形成することができる。 According to the above configuration, even when the movable step 42 moves in conjunction with the opening operation of the slide door 4 in a state where the engaging member 111 is engaged with the movable step 42 due to, for example, an erroneous operation, the movable step 42 It is possible to prevent the engaging member 111 from hindering the movement of the. Thereby, the holding mechanism 100 capable of ensuring the smooth operation of the movable step 42 can be formed.
 (4)係合部材111は、支軸110xの径方向に突出する係合爪140を有する。また、係合部材111は、格納位置P1に移動した可動ステップ42の下方を覆うカバー部材80の底壁部81に設けられる。カバー部材80の周壁部82には、係合部材111の支軸110xに向かって突出する突起部141が設けられる。突起部141は、係合爪140に係合することにより、係合部材111のロック位置X1からアンロック位置X0への移動、すなわちアンロック方向の回動、を規制する位置保持部材150として用いられる。つまり、位置保持部材150は、カバー部材80に設けられた突起部141である。 (4) The engaging member 111 has an engaging claw 140 protruding in the radial direction of the support shaft 110x. Further, the engaging member 111 is provided on the bottom wall portion 81 of the cover member 80 that covers the lower part of the movable step 42 that has moved to the storage position P1. The peripheral wall portion 82 of the cover member 80 is provided with a protruding portion 141 projecting toward the support shaft 110x of the engaging member 111. The protrusion 141 is used as a position holding member 150 that regulates the movement of the engaging member 111 from the lock position X1 to the unlock position X0, that is, rotation in the unlock direction by engaging with the engaging claw 140. Be done. That is, the position holding member 150 is a protrusion 141 provided on the cover member 80.
 上記構成によれば、簡素な構成にて、安定的に、格納位置P1に移動した可動ステップ42の近傍に係合部材111を配置することができる。また、上記構成によれば、簡素な構成にて、安定的に、位置保持部材150を形成することができる。そして、係合部材111に係合爪140を設けることにより、支軸110x周りの回動によって、円滑且つ安定的に、係合部材111と位置保持部材150とを係合及び脱離させることができる。 According to the above configuration, the engaging member 111 can be stably arranged in the vicinity of the movable step 42 that has moved to the storage position P1 with a simple configuration. Further, according to the above configuration, the position holding member 150 can be stably formed with a simple configuration. Then, by providing the engaging claw 140 on the engaging member 111, the engaging member 111 and the position holding member 150 can be engaged and disengaged smoothly and stably by rotating around the support shaft 110x. can.
 (5)位置保持部材150である突起部141は、突起部141に対して係合爪140がアンロック方向とは逆向きのロック方向から係合することにより、ロック方向の回動を規制して係合部材111をアンロック位置X0に保持する機能を有する。これにより、簡素な構成にて、ロック位置X1からアンロック位置X0に移動した係合部材111を、アンロック位置X0に保持することができる。 (5) The protrusion 141, which is the position holding member 150, regulates the rotation in the lock direction by engaging the engaging claw 140 with the protrusion 141 from the lock direction opposite to the unlock direction. It has a function of holding the engaging member 111 at the unlock position X0. As a result, the engaging member 111 that has moved from the lock position X1 to the unlock position X0 can be held at the unlock position X0 with a simple configuration.
 (6)位置保持部材150を構成する突起部141の係合爪140に対する係合面141sは、係合部材111の支軸110xに向かって膨出する断面略円弧状の湾曲面142を含む。これにより、より円滑且つ安定的に、係合部材111と位置保持部材150とを係合及び脱離させることができる。 (6) The engaging surface 141s of the protrusion 141 constituting the position holding member 150 with respect to the engaging claw 140 includes a curved surface 142 having a substantially arcuate cross section that bulges toward the support shaft 110x of the engaging member 111. As a result, the engaging member 111 and the position holding member 150 can be engaged and disengaged more smoothly and stably.
 (7)ステップ側係合部120は、支軸110x周りに係合部材111が回動することにより、係合突部132が挿入及び脱離される係合凹部135を含む。そして、係合突部132が係合凹部135内に挿入された状態で、可動ステップ42が車幅方向外側に移動することにより、係合突部132は、可動ステップ42の押圧力に基づいて、係合凹部135から抜き出される。 (7) The step-side engaging portion 120 includes an engaging recess 135 into which the engaging protrusion 132 is inserted and disengaged by rotating the engaging member 111 around the support shaft 110x. Then, with the engaging protrusion 132 inserted into the engaging recess 135, the movable step 42 moves outward in the vehicle width direction, so that the engaging protrusion 132 is based on the pressing force of the movable step 42. , Extracted from the engaging recess 135.
 上記構成によれば、スライドドア4の開動作に連動して車幅方向外側に移動する可動ステップ42が係合部材111を押圧する力を、効率よく、支軸110x周りに係合部材111を回動させる力に変換することができる。これにより、円滑に、係合部材111をロック位置X1からアンロック位置X0に移動させることができる。 According to the above configuration, the force that the movable step 42 that moves outward in the vehicle width direction in conjunction with the opening operation of the slide door 4 presses the engaging member 111 is efficiently applied to the engaging member 111 around the support shaft 110x. It can be converted into a rotating force. As a result, the engaging member 111 can be smoothly moved from the lock position X1 to the unlock position X0.
 (8)係合突部132の先端部132aには、湾曲面133sを有した面取り部133が設けられる。これにより、支軸110x周りの回動によって、円滑に、係合部材111の係合突部132を係合凹部135に挿入及び脱離させることができる。 (8) A chamfered portion 133 having a curved surface 133s is provided on the tip portion 132a of the engaging protrusion 132. As a result, the engaging protrusion 132 of the engaging member 111 can be smoothly inserted into and detached from the engaging recess 135 by rotating around the support shaft 110x.
 (9)ステップ装置41は、係合部材111の移動範囲を制限するストッパ部162を備える。これにより、ロック位置X1又はアンロック位置X0に保持された係合部材111のガタつきを抑えることができる。 (9) The step device 41 includes a stopper portion 162 that limits the moving range of the engaging member 111. As a result, rattling of the engaging member 111 held at the lock position X1 or the unlock position X0 can be suppressed.
 (10)レバー本体131の先端には、セレーション状の凹凸形状153を有した滑り止め部155が設けられる。 (10) At the tip of the lever body 131, a non-slip portion 155 having a serration-like uneven shape 153 is provided.
 上記構成によれば、利用者が可動ステップ42のロック操作及びアンロック操作を行う際、係合部材111と位置保持部材150との係合力に抗して、容易に、係合部材111を回動させることができる。 According to the above configuration, when the user performs the locking operation and the unlocking operation of the movable step 42, the engaging member 111 is easily rotated against the engaging force between the engaging member 111 and the position holding member 150. Can be moved.
 なお、上記実施形態は、以下のように変更して実施することができる。上記実施形態及び以下の変更例は、技術的に矛盾しない範囲で互いに組み合わせて実施することができる。 The above embodiment can be modified and implemented as follows. The above embodiment and the following modified examples can be implemented in combination with each other within a technically consistent range.
 ・上記実施形態では、車両後方側に開動作する後開き型のスライドドア4に連動するステップ装置41に具体化したが、車両前方側に開動作する前開き型のスライドドア4に適用してもよい。 -In the above embodiment, the step device 41 interlocking with the rear-opening type slide door 4 that opens to the rear side of the vehicle is embodied, but it is applied to the front-opening type slide door 4 that opens to the front side of the vehicle. May be good.
 ・上記実施形態では、スライドドア4は、パワースライドドア装置31に駆動されることにより開閉動作することとしたが、このようなパワースライドドア装置31を有しないスライドドア4に適用してもよい。 -In the above embodiment, the slide door 4 is opened and closed by being driven by the power slide door device 31, but it may be applied to the slide door 4 that does not have such a power slide door device 31. ..
 ・また、スライドドア4の開閉動作に連動して可動ステップ42が車幅方向に移動する構成であれば、例えば、レール&スライダ方式等、その支持構造は、任意に変更してもよい。 Further, as long as the movable step 42 moves in the vehicle width direction in conjunction with the opening / closing operation of the slide door 4, the support structure thereof, for example, the rail & slider method, may be arbitrarily changed.
 ・上記実施形態では、格納位置P1に移動した可動ステップ42の下方を覆うカバー部材80に、その保持機構100を構成する係合部材111及び位置保持部材150が設けられることとしたが、その設置箇所は、任意に変更してもよい。 In the above embodiment, the cover member 80 that covers the lower part of the movable step 42 that has moved to the storage position P1 is provided with the engaging member 111 and the position holding member 150 that constitute the holding mechanism 100. The location may be changed arbitrarily.
 ・上記実施形態では、係合部材111は、レバー本体131、係合突部132、及び係合爪140を有し、支軸110x周りに回動するレバー部材110を含むこととしたが、その構成は、任意に変更してもよい。例えば、ステップ側係合部120に対する係合部が、上記係合突部132とは異なる形状を有していてもよく、位置保持部材150に対する係合部もまた、上記係合爪140とは異なる形状を有していてもよい。そして、必ずしも、回動レバーに限らず、スライドレバーであってもよい。 -In the above embodiment, the engaging member 111 has a lever body 131, an engaging protrusion 132, and an engaging claw 140, and includes a lever member 110 that rotates around a support shaft 110x. The configuration may be changed arbitrarily. For example, the engaging portion with respect to the step-side engaging portion 120 may have a shape different from that of the engaging protrusion 132, and the engaging portion with respect to the position holding member 150 is also different from the engaging claw 140. It may have different shapes. The lever is not necessarily the rotary lever, but may be a slide lever.
 ・更に、ステップ側係合部120の形状や、その形成位置についても任意に変更してもよい。そして、位置保持部材150の形状及び配置についてもまた、上記実施形態における突起部141に限らず、任意に変更してもよい。 Further, the shape of the step side engaging portion 120 and the forming position thereof may be arbitrarily changed. The shape and arrangement of the position holding member 150 is not limited to the protrusion 141 in the above embodiment, and may be arbitrarily changed.
 ・また、上記実施形態では、位置保持部材150は、係合部材111をロック位置X1に保持する機能、及び、係合部材111をアンロック位置X0に保持する機能を有することとしたが、別部材を用いて係合部材111をアンロック位置X0に保持する構成であってもよい。 Further, in the above embodiment, the position holding member 150 has a function of holding the engaging member 111 at the lock position X1 and a function of holding the engaging member 111 at the unlock position X0. A member may be used to hold the engaging member 111 at the unlock position X0.
 ・更に、ストッパ部162の構成も任意に変更してもよい。 -Furthermore, the configuration of the stopper portion 162 may be arbitrarily changed.
 例えば、図23に示すように、位置保持部材150を構成する突起部141を車両前後方向に挟む二位置に2つの突起部164,165を設ける。更に、突起部164は、支軸110x周りに回動する係合部材111の係合爪140が、ロック位置X1を超えてロック方向に回動した場合に、係合爪140に当接して係合部材111の回動範囲を規制する位置に配置される。突起部165は、支軸110x周りに回動する係合部材111の係合爪140が、アンロック位置X0を超えてアンロック方向に回動した場合に、係合爪140に当接して係合部材111の回動範囲を規制する位置に配置される。、これにより、これら各突起部164,165が、そのストッパ部162Bとして用いられる構成としてもよい。 For example, as shown in FIG. 23, two protrusions 164 and 165 are provided at two positions sandwiching the protrusions 141 constituting the position holding member 150 in the front-rear direction of the vehicle. Further, the protrusion 164 comes into contact with the engaging claw 140 when the engaging claw 140 of the engaging member 111 rotating around the support shaft 110x rotates in the locking direction beyond the lock position X1. It is arranged at a position that regulates the rotation range of the joint member 111. The protrusion 165 comes into contact with the engaging claw 140 when the engaging claw 140 of the engaging member 111 rotating around the support shaft 110x rotates in the unlocking direction beyond the unlock position X0. It is arranged at a position that regulates the rotation range of the joint member 111. As a result, each of these protrusions 164 and 165 may be used as a stopper portion 162B thereof.

Claims (13)

  1.  車両のドア開口部の下方に支持されるように構成された可動ステップと、
     車両前後方向に延びる移動経路に沿って移動するとともにその移動経路中の変位区間において車幅方向に変位するスライドドアに支持されるように構成された連結部材であって、前記可動ステップに係合することにより前記スライドドアの開閉動作に連動して前記可動ステップを車幅方向に移動させるように構成された連結部材と、
     前記可動ステップに係合することにより該可動ステップを車幅方向内側の格納位置に保持するように構成された係合部材と、を備え、
     前記係合部材は、前記可動ステップを前記格納位置に保持するロック位置と前記可動ステップに干渉しないアンロック位置との間を移動可能に構成され、
     さらに、前記係合部材は、
      前記可動ステップが前記格納位置に移動した状態で、前記アンロック位置から前記ロック位置に移動することにより、前記可動ステップに設けられたステップ側係合部に係合し、
      前記係合部材が前記ロック位置に移動した状態で前記可動ステップが前記格納位置に移動した場合には、前記可動ステップに押圧されて前記ロック位置から前記アンロック位置に移動する、ように構成される車両用ステップ装置。
    Movable steps configured to be supported below the vehicle door opening,
    A connecting member configured to move along a moving path extending in the front-rear direction of the vehicle and to be supported by a sliding door that is displaced in the vehicle width direction in a displacement section in the moving path, and engages with the movable step. By doing so, the connecting member configured to move the movable step in the vehicle width direction in conjunction with the opening / closing operation of the sliding door, and
    An engaging member configured to engage the movable step to hold the movable step in a retracted position inside in the vehicle width direction.
    The engaging member is configured to be movable between a lock position that holds the movable step in the retracted position and an unlocked position that does not interfere with the movable step.
    Further, the engaging member is
    With the movable step moved to the retracted position, by moving from the unlocked position to the locked position, the movable step engages with the step-side engaging portion provided in the movable step.
    When the movable step moves to the retracted position while the engaging member has moved to the locked position, the movable step is pressed by the movable step and moves from the locked position to the unlocked position. Vehicle step device.
  2.  請求項1に記載の車両用ステップ装置において、
     前記係合部材は、支軸周りに回動するレバー部材であって、
     前記係合部材は、前記支軸を有したレバー本体と、前記支軸周りの回動方向に延びるように前記レバー本体から突出した係合突部とを有し、
     さらに、前記係合部材は、
      前記可動ステップが前記格納位置に移動した状態で、前記レバー部材が前記支軸周りに回動することにより、前記係合突部が前記ステップ側係合部に係合及び脱離し、
      前記係合部材が前記ロック位置に移動した状態で前記可動ステップが前記格納位置に移動した場合には、前記ステップ側係合部と前記係合突部とが係合することなく、該係合突部の先端部が前記可動ステップに押圧されるように構成される、車両用ステップ装置。
    In the vehicle step device according to claim 1,
    The engaging member is a lever member that rotates around a support shaft.
    The engaging member has a lever body having the support shaft and an engaging protrusion protruding from the lever body so as to extend in a rotation direction around the support shaft.
    Further, the engaging member is
    With the movable step moved to the retracted position, the lever member rotates around the support shaft, so that the engaging protrusion engages with and disengages from the step-side engaging portion.
    When the movable step moves to the retracted position while the engaging member has moved to the locked position, the engaging portion does not engage with the step-side engaging portion and the engaging protrusion. A vehicle step device configured so that the tip of a protrusion is pressed against the movable step.
  3.  請求項1又は請求項2に記載の車両用ステップ装置において、
     前記係合部材に係合することにより該係合部材を前記ロック位置に保持するように構成された位置保持部材をさらに備え、
     前記係合部材は、該係合部材が前記可動ステップに係合する状態で該可動ステップが前記格納位置から車幅方向外側に移動した場合に、前記位置保持部材との係合力に抗して該位置保持部材から脱離することにより、前記ロック位置から前記アンロック位置に移動可能に構成される、車両用ステップ装置。
    In the vehicle step device according to claim 1 or 2.
    A position holding member configured to hold the engaging member in the locked position by engaging with the engaging member is further provided.
    The engaging member resists the engaging force with the position holding member when the movable step moves outward in the vehicle width direction from the storage position while the engaging member is engaged with the movable step. A vehicle step device configured to be movable from the locked position to the unlocked position by being detached from the position holding member.
  4.  請求項3に記載の車両用ステップ装置において、
     前記係合部材は、支軸周りに回動するレバー部材であって、
     前記係合部材は、前記支軸の径方向に突出する係合爪を有し、
     前記位置保持部材は、前記係合爪に係合することにより前記係合部材が前記ロック位置から前記アンロック位置に移動するアンロック方向の回動を規制するように構成される、車両用ステップ装置。
    In the vehicle step device according to claim 3.
    The engaging member is a lever member that rotates around a support shaft.
    The engaging member has an engaging claw that protrudes in the radial direction of the support shaft.
    The position holding member is configured to restrict rotation in the unlock direction in which the engaging member moves from the locked position to the unlocked position by engaging with the engaging claw. Device.
  5.  請求項4に記載の車両用ステップ装置において、
     前記位置保持部材は、該位置保持部材に対して前記係合爪が前記アンロック方向とは逆向きのロック方向から係合することにより該ロック方向の回動を規制して前記係合部材を前記アンロック位置に保持するように構成される、車両用ステップ装置。
    In the vehicle step device according to claim 4.
    The position holding member restricts rotation in the locking direction by engaging the engaging claw with the position holding member from a locking direction opposite to the unlocking direction, and locks the engaging member. A vehicle step device configured to hold in the unlocked position.
  6.  請求項4又は請求項5に記載の車両用ステップ装置において、
     前記位置保持部材は前記係合爪に係合するように構成された係合面を有し、該係合面は、前記係合部材の支軸に向かって膨出する湾曲面を含む、車両用ステップ装置。
    In the vehicle step device according to claim 4 or 5.
    The position-holding member has an engaging surface configured to engage the engaging claw, the engaging surface including a curved surface that bulges toward a support shaft of the engaging member. For step device.
  7.  請求項3~請求項6の何れか一項に記載の車両用ステップ装置において、
     前記格納位置に移動した前記可動ステップの下方を覆うように構成されたカバー部材をさらに備え、
     前記位置保持部材は、前記カバー部材に設けられた突起部である、車両用ステップ装置。
    In the vehicle step device according to any one of claims 3 to 6.
    A cover member configured to cover below the movable step that has moved to the retracted position is further provided.
    The position holding member is a step device for a vehicle, which is a protrusion provided on the cover member.
  8.  請求項4~請求項7の何れか一項に記載の車両用ステップ装置において、
     前記係合部材は、前記支軸を有したレバー本体と、前記支軸周りの回動方向に延びるように前記レバー本体から突出した係合突部と、を有し、
     前記係合部材は、前記可動ステップが前記格納位置に移動した状態で前記支軸周りに回動することにより前記係合突部を前記ステップ側係合部に係合及び脱離させるように構成され、
     前記ステップ側係合部は、前記支軸周りに前記係合部材が回動することにより前記係合突部が挿入及び脱離される係合凹部であって、
     前記係合突部は、該係合突部が前記係合凹部内に挿入された状態で前記可動ステップが車幅方向外側に移動することにより、該可動ステップの押圧力に基づいて、前記係合凹部から抜き出されるように構成される、車両用ステップ装置。
    In the vehicle step device according to any one of claims 4 to 7.
    The engaging member has a lever body having the support shaft and an engaging protrusion protruding from the lever body so as to extend in a rotation direction around the support shaft.
    The engaging member is configured to engage and disengage the engaging protrusion with the step-side engaging portion by rotating around the support shaft with the movable step moved to the retracted position. Being done
    The step-side engaging portion is an engaging recess in which the engaging protrusion is inserted and disengaged by rotating the engaging member around the support shaft.
    The engaging protrusion is engaged based on the pressing force of the movable step by moving the movable step outward in the vehicle width direction in a state where the engaging protrusion is inserted into the engaging recess. A step device for vehicles that is configured to be pulled out from the recess.
  9.  請求項8に記載の車両用ステップ装置において、
     前記係合突部の先端部には、湾曲面を有した面取り部が設けられる、車両用ステップ装置。
    In the vehicle step device according to claim 8.
    A vehicle step device provided with a chamfered portion having a curved surface at the tip of the engaging protrusion.
  10.  請求項1~請求項9の何れか一項に記載の車両用ステップ装置において、
     前記係合部材の移動範囲を制限するストッパ部をさらに備える、車両用ステップ装置。
    In the vehicle step device according to any one of claims 1 to 9.
    A vehicle step device further comprising a stopper portion that limits the range of movement of the engaging member.
  11.  請求項1~請求項10の何れか一項に記載の車両用ステップ装置において、
     前記格納位置に移動した前記可動ステップの下方を覆うように構成されたカバー部材を備え、
     前記係合部材は、前記カバー部材に設けられる、車両用ステップ装置。
    The vehicle step device according to any one of claims 1 to 10.
    A cover member configured to cover the lower part of the movable step moved to the storage position is provided.
    The engaging member is a vehicle step device provided on the cover member.
  12.  請求項1~請求項11の何れか一項に記載の車両用ステップ装置において、
     前記係合部材は、支軸周りに回動するレバー部材であって、
     前記係合部材は、前記支軸を有したレバー本体と、前記支軸周りの回動方向に延びるように前記レバー本体から突出した係合突部と、を有し、
     前記レバー本体の先端は、凹凸形状を有した滑り止め部を備える、車両用ステップ装置。
    The vehicle step device according to any one of claims 1 to 11.
    The engaging member is a lever member that rotates around a support shaft.
    The engaging member has a lever body having the support shaft and an engaging protrusion protruding from the lever body so as to extend in a rotation direction around the support shaft.
    The tip of the lever body is a step device for a vehicle provided with a non-slip portion having an uneven shape.
  13.  車両のドア開口部の下方に支持されるように構成された可動ステップと、
     車両前後方向に延びる移動経路に沿って移動するとともにその移動経路中の変位区間において車幅方向に変位するスライドドアに支持されるように構成された連結部材であって、前記可動ステップに係合ことにより前記スライドドアの開閉動作に連動して前記可動ステップを車幅方向に移動させるように構成された連結部材と、
     前記可動ステップに係合することにより該可動ステップを車幅方向内側の格納位置に保持するロック位置と前記可動ステップに干渉しないアンロック位置との間を移動可能に構成された係合部材と、
     前記係合部材に係合することにより該係合部材を前記ロック位置に保持するように構成された位置保持部材と、を備え、
     前記係合部材は、
      前記可動ステップが前記格納位置に移動した状態で、前記アンロック位置から前記ロック位置に移動することにより、前記可動ステップに設けられたステップ側係合部に係合し、
      前記係合部材が前記可動ステップに係合する状態で該可動ステップが前記格納位置から車幅方向外側に移動した場合に、前記位置保持部材との係合力に抗して該位置保持部材から脱離することにより、前記ロック位置から前記アンロック位置に移動可能である、ように構成される車両用ステップ装置。
    Movable steps configured to be supported below the vehicle door opening,
    A connecting member configured to move along a moving path extending in the front-rear direction of the vehicle and to be supported by a sliding door that is displaced in the vehicle width direction in a displacement section in the moving path, and engages with the movable step. A connecting member configured to move the movable step in the vehicle width direction in conjunction with the opening / closing operation of the sliding door.
    An engaging member configured to be movable between a lock position that holds the movable step in a storage position inside in the vehicle width direction by engaging with the movable step and an unlock position that does not interfere with the movable step.
    A position holding member configured to hold the engaging member in the locked position by engaging with the engaging member.
    The engaging member is
    With the movable step moved to the retracted position, by moving from the unlocked position to the locked position, the movable step engages with the step-side engaging portion provided in the movable step.
    When the movable step moves outward in the vehicle width direction from the storage position while the engaging member is engaged with the movable step, the movable step is disengaged from the position holding member against the engaging force with the position holding member. A vehicle step device configured to be movable from the locked position to the unlocked position by being separated.
PCT/JP2020/043862 2020-03-09 2020-11-25 Step apparatus for vehicle WO2021181760A1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7413983B2 (en) 2020-11-19 2024-01-16 トヨタ車体株式会社 vehicle structure

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315576B2 (en) * 1983-06-14 1991-03-01 Nitsusan Jidosha Kk
JPH09188197A (en) * 1996-01-10 1997-07-22 Mitsubishi Motors Corp Movable step for vehicle
JP2015230041A (en) * 2014-06-05 2015-12-21 株式会社マルナカ Washer and screw with washer
JP2018168592A (en) * 2017-03-30 2018-11-01 アイシン精機株式会社 Vehicle door lock apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315576B2 (en) * 1983-06-14 1991-03-01 Nitsusan Jidosha Kk
JPH09188197A (en) * 1996-01-10 1997-07-22 Mitsubishi Motors Corp Movable step for vehicle
JP2015230041A (en) * 2014-06-05 2015-12-21 株式会社マルナカ Washer and screw with washer
JP2018168592A (en) * 2017-03-30 2018-11-01 アイシン精機株式会社 Vehicle door lock apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7413983B2 (en) 2020-11-19 2024-01-16 トヨタ車体株式会社 vehicle structure

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