JP7257625B2 - vehicle step device - Google Patents

Description

The present invention relates to a step device provided in a vehicle.

2. Description of the Related Art Some vehicles, such as automobiles, having a high floor position are equipped with a step device in order to improve the ease of getting on and off of passengers. For example, Patent Literature 1 discloses a movable side step device provided under a side door of a vehicle. In the side step device described in Patent Document 1, a step for getting on and off (side step) is connected to the lower part of the vehicle body via a parallel link, and the user can get on and off in the vertical direction (vertical direction and vehicle width direction) with respect to the vehicle body. The step is movable. The side step device is configured such that an entry/exit step can be moved between a retracted position stored under the vehicle body and a deployed position projecting laterally from the vehicle body by operating an actuator.

JP-A-58-39543

By the way, while the vehicle is running, wind flows from the front to the rear of the vehicle over the upper surface of the step for entry and exit in the retracted position, and the air inside the side step device is sucked out by such wind flow. Therefore, when the vehicle travels on a snowy road, the snow that is lifted up by the front wheels and flows under the floor toward the rear of the vehicle is sucked into the side step device. Then, the snow sucked into the side step device collides with the components of the side step device (for example, parallel links, etc.) and accumulates inside the side step device. Accumulated snow inside the side step device restricts the movement of the components of the side step device and prevents the entry/exit steps from moving between the retracted and deployed positions, particularly from the retracted position to the extended position. There is a risk that the deployment movement to move to will be hindered.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and an object thereof is to provide a step device for a vehicle that can continue the deployment operation even when snow accumulates inside the step device. be.

In order to achieve the above object, a step device for a vehicle according to the present invention comprises: a step for getting on and off; a vehicle body fixing member fixed to a vehicle body; a first link arm having one end rotatably supported by the vehicle body fixing member and the other end rotatably supported by the other end of the step support member; a second link arm which is rotatably supported by the vehicle body fixing member while being spaced apart from the arm to the outside in the vehicle width direction and whose other end is rotatably supported by the other end of the step support member; and an actuator for rotationally driving the first link arm, and by rotationally driving the first link arm by the actuator, the step for getting on and off is moved to a deployed position outside the vehicle body and to a lower portion of the vehicle body. A vertical link type step device for a vehicle that moves in the vehicle width direction between a stored position and a stored position, wherein at the stored position of the step for getting on and off, the second link arm moves to the other end of the second link arm. and a concave portion formed in a direction away from the first link arm outside the convex portion in the vehicle width direction. characterized by

In a step device for a vehicle according to an aspect of the present invention, the first link arm has a protrusion formed at the other end of the first link arm so as to protrude from the first link arm. The projecting portion is formed so as to project into the recessed portion of the second link arm and form a first space between itself and the recessed portion at the deployed position of the step for getting on and off.
In the vehicle step device according to one aspect of the present invention, the vehicle body fixing member has an opposing wall portion that faces the first link arm and the second link arm and extends in the vehicle width direction. The part contacts and removes deposits deposited between the first link arm and the second link arm as the step for getting on and off is moved from the retracted position to the deployed position. , so as to form a second space together with the first link arm and the second link arm at the unfolded position of the step for getting on and off, and curved upward from the outside in the vehicle width direction to the inside and the lower side in the vehicle width direction. It is formed obliquely convex.

In the vehicle step device according to the aspect of the present invention, one end of the first link arm is rotatably supported by the vehicle body fixing member via a first link pin, One end of the second link arm is rotatably supported by the vehicle body fixing member via a second link pin, and has a cylindrical surface that partially surrounds the circumference of the second link pin. has a cylindrical surface that partially surrounds the

According to the step device for a vehicle according to the present invention, at the retracted position of the step for getting on and off, the second link arm has a convex portion formed convexly toward the first link arm at the other end of the second link arm. have. Therefore, the space between the first link arm and the second link arm can be narrowed, and the amount of snow accumulated in the space can be reduced. Further, the step device for a vehicle according to the present invention has a concave portion that is concavely formed in a direction away from the first link arm on the outside in the vehicle width direction of the convex portion. Therefore, the snow accumulated in the space between the first link arm and the second link arm and compressed as the step for getting on and off is expanded can be held in the recess. In this way, while reducing the amount (volume) of snow that accumulates in the space between the first link arm and the second link arm, the snow whose volume is further reduced by being compressed as the step for getting on and off is expanded. can be held in the recess of the second link arm. Therefore, even if snow accumulates inside the side step device, it is possible to prevent the movement of the components of the side step device from being restricted by the snow. A moving motion, in particular a deployment motion of moving the entry/exit steps from the stowed position to the deployed position, can be sustained.

1 is an outline view of a vehicle provided with a step device according to one embodiment of the present invention; FIG. 4 is a schematic configuration diagram of a rear link mechanism in a retracted state; FIG. FIG. 4 is a schematic configuration diagram of a rear link mechanism in an unfolded state; FIG. 4 is a schematic diagram showing a state in which snow has accumulated inside the rear link mechanism in the retracted state; FIG. 4 is a schematic diagram showing the rear link mechanism in a deployed state with snow accumulated inside the rear link mechanism adhering to the driven link; FIG. 4 is a schematic diagram showing the rear link mechanism in a deployed state with snow accumulated inside the rear link mechanism adhering to the drive link.

An embodiment of a step device 1 for a vehicle embodying the present invention will be described below.
FIG. 1 is an outline view of a vehicle 2 provided with a step device 1 according to an embodiment of the invention. FIG. 2 is a schematic configuration diagram of the rear link mechanism 5 in the retracted state. FIG. 3 is a schematic configuration diagram of the rear link mechanism 5 in the unfolded state. For convenience of explanation, "front", "rear", "left", and "right" as viewed from the seated occupant are defined based on the traveling direction of the vehicle 2, and "up" and "down" are defined based on gravity. Define That is, the arrows "front" and "rear" shown in each figure indicate the forward and backward directions of the vehicle 2, the arrows "left" and "right" indicate the vehicle width direction of the vehicle 2, and the arrows "up" and "right" indicate the vehicle width direction. “Down” indicates the vertical direction of the vehicle 2 . In FIG. 1, illustration of a front door and a rear door on the left side (passenger seat side) of the vehicle 2 is omitted, and the step device 1 is in an unfolded state. 2 and 3 are views of the rear link mechanism 5 and its surroundings as seen from the rear of the vehicle 2. FIG.

As shown in FIG. 1, a step device 1 according to one embodiment of the present invention is a movable step device provided at the lower part of a 1BOX type vehicle 2 on the passenger seat side, for example. The step device 1 includes a step plate 3 (step for getting on and off) and two link mechanisms 4 and 5 that support the step plate 3 so as to be movable in the vertical direction (vehicle width direction and vertical direction).
The step plate 3 extends in the longitudinal direction of the vehicle below the opening 6 of the front door on the left side (passenger seat side) of the vehicle 2 and the opening 7 of the sliding rear door, and has a vehicle width on which the feet of the occupant can be placed. Set to directional length. The step plate 3 is supported on the lower part of the vehicle body, more specifically, on the lower part of the side sill 8 on the left side (passenger seat side) of the vehicle 2 via two link mechanisms 4 and 5 .

The two link mechanisms 4 and 5 are spaced apart from each other in the longitudinal direction of the vehicle. The step device 1 is configured such that the step plate 3 is movable in the vehicle width direction between a retracted position positioned at the bottom of the vehicle 2 and a deployed position protruding outward (to the left) in the vehicle width direction from the side sill 8 . ing. Of the two link mechanisms 4 and 5, the rear link mechanism 5 on the rear side of the vehicle 2 has a drive motor 10 (actuator) that rotationally drives a link (drive link 12 to be described later). The front link mechanism 4 on the front side of the vehicle 2 does not have a drive motor and operates following the movement of the step plate 3 .

The drive motor 10 is controlled to automatically operate as the front door and the rear door on the passenger seat side of the vehicle 2 are opened and closed. For example, when the front door and the rear door are closed, the step plate 3 is positioned at the retracted position, and when at least one of the front door and the rear door is opened, the step plate 3 moves to the deployed position. is operated and controlled.

The rear link mechanism 5 having the drive motor 10 will be described below, but the front link mechanism 4 differs from the rear link mechanism 5 in that no drive motor is provided. The positions in the vehicle width direction, the vertical positions, etc. of the vehicle 2 have the same configuration.
As shown in FIG. 2, the rear link mechanism 5 includes a link bracket 11 (vehicle fixing member), a drive link 12 (first link arm), a driven link 13 (second link arm), and a link arm 14 (step support member). ).

The link bracket 11 includes two thick plate-like vertical plate members 11a which are arranged at intervals in the front-rear direction and extend in the vehicle width direction and the vertical direction, and connects the two vertical plate members 11a in the front-rear direction. It has a plate-shaped connection member 11b extending in the vehicle width direction and the front-rear direction, and is formed in a box shape with an opening at the bottom. The link bracket 11 is fixed to the lower portion of the vehicle body 20 by bolts at four locations on the front, rear, left, and right.

As shown in FIG. 2, the connection member 11b of the link bracket 11 has a facing wall portion 11c that faces the drive link 12 and the driven link 13 from above and extends in the vehicle width direction when the step plate 3 is in the retracted position. are doing. The facing wall portion 11c is a portion that is curved upward from the outer side to the inner side (from the left side to the right side) in the vehicle width direction. A drive link side facing surface 11d facing along the surface 12g, a driven link side facing surface 11e facing along a first wall portion facing surface 13g described later of the driven link 13, and the drive link side facing surface 11d. It has a connection facing surface 11f that connects with the driven link side facing surface 11e. The facing wall portion 11c is formed to project diagonally inward (to the right) and downward in the vehicle width direction at the portion of the connecting facing surface 11f.

The link arm 14 is an arm-shaped member arranged so as to extend in the vehicle width direction, and has two thick plate-shaped vertical plate members 14a arranged with an interval in the front-rear direction. The member 14a is connected at a vehicle width direction outer (left) portion or the like. A step plate 3 is fixed to an outer end portion 14b of the link arm 14, which is located outside in the vehicle width direction. The link bracket 11 and the link arm 14 are arranged at the same longitudinal position. Specifically, the front vertical plate member 11a of the link bracket 11 and the front vertical plate member 14a of the link arm 14, the rear vertical plate member 11a of the link bracket 11 and the rear vertical plate member 14a of the link arm 14 are They are arranged at the same front and rear positions, respectively.

The drive link 12 and the driven link 13 are arm-shaped members having a box-shaped cross section. As shown in FIG. 2, when the step plate 3 is in the retracted position, the driven link 13 is formed so as to project toward the drive link 12 at the other end portion 13a, which is the end portion on the inner side (right side) of the driven link 13 in the vehicle width direction. and a concave portion 13c formed concavely in a direction away from the drive link 12 on the vehicle width direction outer side (left side) of the convex portion 13b. In addition, when the step plate 3 is in the retracted position, the driven link 13 has a protrusion facing surface 13d that is the portion of the protrusion 13b facing the drive link 12, and a recess facing surface that is the portion of the recess 13c facing the drive link 12. 13e, an extended facing surface 13f continuously extending from the recessed facing surface 13e, a first wall facing surface 13g extending from the extended facing surface 13f along the driven link side facing surface 11e of the facing wall 11c, a first and a driven link surrounding surface 13h extending continuously from the wall facing surface 13g. Specifically, as shown in FIG. 2, the convex portion facing surface 13d is a plane extending in the vehicle width direction and the front-rear direction when the step plate 3 is in the retracted position. As shown in FIG. 2, the concave portion facing surface 13e includes a first inclined surface 13i extending obliquely outwardly and downwardly in the vehicle width direction from the outer (left) edge of the convex portion facing surface 13d in the vehicle width direction, and a first inclined surface 13i. A curved surface 13j formed concavely downward from the outer edge in the vehicle width direction of the surface 13i, and a second inclined surface extending diagonally outward and upward in the vehicle width direction from the outer edge in the vehicle width direction of the curved surface 13j. 13k. The second inclined surface 13k is formed with a shorter length and steeper slope than the first inclined surface 13i. The second inclined surface 13k may be longer than the first inclined surface 13i and formed with a gentler gradient, or may be formed with the same length and the same gradient as the first inclined surface 13i. Further, as shown in FIG. 2, the extended facing surface 13f is a surface extending obliquely outward and upward in the vehicle width direction from the outer edge of the second inclined surface 13k of the recessed facing surface 13e in the vehicle width direction. The wall facing surface 13g is a surface extending further outward in the vehicle width direction from the extended facing surface 13f, and the driven link surrounding surface 13h is the edge of the first wall facing surface 13g on the outer side in the vehicle width direction. is a cylindrical surface extending so as to partially surround the second link pin 22 described later.

As shown in FIG. 2, the drive link 12 has a protruding portion 12b that protrudes from the drive link 12 at the other end portion 12a that is the inner (right) end portion of the drive link 12 in the vehicle width direction. . As shown in FIG. 3, the projecting portion 12b is formed so as to project into the recessed portion 13c of the driven link 13 when the step plate 3 is in the deployed position, and to form a first space G1 described later with the recessed portion 13c. ing. Further, in the storage position of the step plate 3, the drive link 12 has a surrounding crushing surface 12c, which is a portion of a projecting portion 12b extending so as to partially surround a third link pin 23, which will be described later, and a vehicle width of the surrounding crushing surface 12c. a drive link facing surface 12d extending outward in the vehicle width direction from an edge on the outside in the vehicle width direction; a drive link inclined surface 12e extending obliquely outward and upward in the vehicle width direction from the edge on the outside in the vehicle width direction of the drive link facing surface 12d; A drive link surrounding surface 12f extending from the vehicle width direction outer edge of the drive link inclined surface 12e so as to partially surround a first link pin 21 described later to form a cylindrical surface, and an upper side of the drive link surrounding surface 12f. A second wall facing surface 12g continuously extends from the edge along the drive link side facing surface 11d of the facing wall 11c obliquely upward and inward in the vehicle width direction.

As shown in FIG. 2, in the retracted position of the step plate 3, the drive link facing surface 12d of the drive link 12 and the convex portion facing surface 13d of the driven link 13 are arranged to face each other and are parallel or substantially parallel to each other. extended. At the retracted position, the projection facing surface 13d of the driven link 13 may be in contact with the drive link facing surface 12d of the drive link 12, or may be arranged with a gap therebetween. Further, in the retracted position, the drive link inclined surface 12e of the drive link 12 and the concave facing surface 13e (the first inclined surface 13i, the curved surface 13j and the second inclined surface 13k) of the driven link 13 form a predetermined space G0. are positioned opposite each other while forming. As shown in FIG. 2, at the retracted position, the space G0 is larger than the gap formed between the drive link facing surface 12d and the projection facing surface 13d.

As shown in FIG. 2, each of the drive link 12 and the driven link 13 includes link pins 21, 22, and 23 arranged so that one end is connected to the link bracket 11 and the other end is connected to the link arm 14, and the axes extend in the front-rear direction. , 24 so as to be pivotally supported. Therefore, the drive link 12 and the driven link 13 are arranged so as to be able to swing relative to the vehicle body 20 in the vehicle width direction. The drive link 12 is arranged on the inner side (right side) of the driven link 13 in the vehicle width direction. Also, the drive link 12 is formed shorter than the driven link 13 .

A first link pin 21 that supports the link bracket 11 and the drive link 12 is formed integrally with the drive shaft of the drive motor 10 . A drive motor 10 is fixed to a link bracket 11 . The second link pin 22 that supports the link bracket 11 and the driven link 13 is spaced outward in the vehicle width direction with respect to the first link pin 21 and is offset below the first link pin 21 . are placed. On the other hand, in the link arm 14 extending in the vehicle width direction, the third link pin 23 that supports the link arm 14 and the drive link 12 is arranged at the inner end portion 14c of the link arm 14 in the vehicle width direction. The fourth link pin 24 that supports the link arm 14 and the driven link 13 is arranged near the end 14c on the inner side of the link arm 14 in the vehicle width direction, and is located on the outer side of the third link pin 23 in the vehicle width direction. They are spaced apart below.

As shown in FIG. 2, in the retracted state where the step plate 3 is located at the retracted position, the drive link 12 and the driven link 13 rotate inward in the vehicle width direction, and the third link pin 23 and the fourth link pin 24 It is located inside the first link pin 21 and the second link pin 22 in the vehicle width direction.
As shown in FIG. 3, the drive motor 10 is driven to rotate the drive link 12, thereby moving the step plate 3 between the retracted position and the deployed position. In the deployed state where the step plate 3 is located at the deployed position, the drive link 12 and the driven link 13 rotate outwardly in the vehicle width direction, and the third link pin 23 and the fourth link pin 24 move to the first link pin 21 and the fourth link pin 24 . It is located outside the two-link pin 22 in the vehicle width direction. As shown in FIG. 3, in the deployed position of the step plate 3, the upper surface 3a of the step plate 3 is substantially horizontal (parallel to the horizontal plane of the vehicle body 20). On the other hand, in the retracted position of the step plate 3, the step plate 3 is positioned inside the deployed position in the vehicle width direction, and the upper surface 3a of the step plate 3 is positioned slightly above the deployed position and positioned outward in the vehicle width direction. Slightly sloping downwards. Also, as will be described later with reference to FIG. 6, the opposing wall portion 11c is formed by deposits (for example, snow) accumulated between the drive link 12 and the driven link 13 as the step plate 3 moves from the retracted position to the deployed position. While contacting and removing the deposits, the step plate 3 curves upward from the vehicle width direction outside to the inside so as to form a second space G2 together with the drive link 12 and the driven link 13 at the deployed position of the step plate 3. It is formed to be obliquely convex inward and downward in the width direction.

Next, the operation and effects of the step device 1 according to one embodiment of the present invention will be described with reference to FIGS. 4 to 6. FIG. FIG. 4 is a schematic diagram showing a state in which snow S is accumulated inside the rear link mechanism 5 in the retracted state. FIG. 5 is a schematic diagram showing the rear link mechanism 5 in the unfolded state with the snow S accumulated inside the rear link mechanism 5 adhering to the driven link 13. As shown in FIG. FIG. 6 is a schematic diagram showing the rear link mechanism 4 in the unfolded state with the snow S accumulated inside the rear link mechanism 5 adhering to the drive link 12. As shown in FIG.

As shown in FIG. 4, when the vehicle 2 travels on a snowy road, snow S flows under the floor toward the rear of the vehicle and is sucked into the interior of the rear link mechanism 5. drive link 12 , driven link 13 , etc.) and accumulate inside the rear link mechanism 5 . Specifically, as shown in FIG. 4, the snow S is formed by the drive link inclined surface 12e of the drive link 12, the recess facing surface 13e of the driven link 13 (the first inclined surface 13i, the curved surface 13j, and the second inclined surface 13j). face 13k), deposited in the space G0 enclosed by the extended facing face 13f of the driven link 13; In addition to the space G0, the snow S may also be present in the space between the convex portion facing surface 13d of the driven link 13 and the drive link facing surface 12d of the drive link 12, and the first wall portion facing surface of the driven link 13. It may be deposited in the space between 13g and the driven link side facing surface 11e of the facing wall portion 11c.

Here, according to the step device 1 according to the embodiment of the present invention, when the step plate 3 is in the retracted position, the driven link 13 has the other end portion 13a which is the end portion on the inner side (right side) of the driven link 13 in the vehicle width direction. , there is a convex portion 13b formed to protrude toward the drive link 12, and a concave portion 13c formed concavely in a direction away from the drive link 12 on the vehicle width direction outer side (left side) of the convex portion 13b. Specifically, since the convex portion 13b of the driven link 13 is formed toward the drive link 12, the distance between the convex portion facing surface 13d of the convex portion 13b and the drive link facing surface 12d of the drive link 12 is can be made extremely small or eliminated, and the space in which the snow S accumulates between the drive link 12 and the driven link 13 can be narrowed. Therefore, the amount of snow S deposited between the drive link 12 and the driven link 13 can be reduced.

Furthermore, since the recessed portion 13c of the driven link 13 is recessed in the direction away from the drive link 12, as shown in FIG. It is possible to secure a space (that is, the recess 13c) for holding the snow S that is compressed along with the movement. In this way, while reducing the amount (volume) of the snow S accumulated between the drive link 12 and the driven link 13, the snow S that has been further reduced in volume by being compressed as the step plate 3 deploys is driven. It can be held in the recess 13 c of the link 13 . Therefore, even if snow S accumulates inside the rear link mechanism 5, it is possible to prevent the movement of the drive link 12 and the driven link 13 of the rear link mechanism 5 from being restricted by the snow S. between the retracted position and the deployed position, in particular the deployed motion of moving the step plate 3 from the retracted position to the deployed position.

Further, according to the step device 1 according to the embodiment of the present invention, as shown in FIG. have. As shown in FIG. 5, when the step plate 3 is in the deployed position, the projecting portion 12b projects into the recessed portion 13c of the driven link 13 and forms a first space G1 with the recessed portion 13c. formed. Therefore, even if the step plate 3 is moved to the unfolded position while the snow S accumulated inside the rear link mechanism 5 adheres to the recessed portion 13c of the driven link 13, the drive link 12 will not move during the movement process of the step plate 3. projecting portion 12b plunges into the snow S, the snow S is crushed by the projecting portion 12b, and the remaining snow S that has not been crushed can be compressed in the first space G1. Therefore, the volume of the snow S can be reduced as the step plate 3 is deployed. In addition, the snow S that remains unsmashed can be held in the first space G1 in a compressed state. Therefore, even if snow S accumulates inside the rear link mechanism 5, it is possible to prevent the movement of the drive link 12 and the driven link 13 of the rear link mechanism 5 from being restricted by the snow S. The deployment motion of moving 3 from the stowed position to the deployed position can be sustained.

In addition, according to the step device 1 according to the embodiment of the present invention, as shown in FIG. 6, the opposing wall portion 11c moves between the drive link 12 and the driven link 13 as the step plate 3 moves from the retracted position to the deployed position. While contacting and removing the snow S accumulated between the step plate 3 and the drive link 12 and the driven link 13 at the deployed position, the step plate 3 forms a second space G2 together with the drive link 12 and the driven link 13 from the outside in the vehicle width direction. It curves inward and upward, and is formed to project obliquely inward and downward in the vehicle width direction. Therefore, even if the step plate 3 is moved to the unfolded position while the snow S accumulated inside the rear link mechanism 5 remains attached to the drive link inclined surface 12e of the drive link 12, during the movement process of the step plate 3, The connection facing surface 11f of the facing wall portion 11c contacts and crushes the snow S, and the remaining snow S that cannot be crushed can be compressed in the second space G2. Therefore, the volume of the snow S can be reduced as the step plate 3 is deployed. In addition, the remaining snow S that cannot be pulverized can be held in the second space G2 in a compressed state. Therefore, even if snow S accumulates inside the rear link mechanism 5, it is possible to prevent the movement of the drive link 12 and the driven link 13 of the rear link mechanism 5 from being restricted by the snow S. The deployment motion of moving 3 from the stowed position to the deployed position can be sustained.

Further, since the drive link surrounding surface 12f of the drive link 12 and the driven link surrounding surface 13h of the driven link 13 are cylindrical surfaces, the snow S adhering to the cylindrical surfaces of the drive link surrounding surface 12f and the driven link surrounding surface 13h is removed. is not compressed even if the drive link 12 and the driven link 13 are operated, and it is possible to avoid restriction of the operation of the drive link 12 and the driven link 13 of the rear link mechanism 5 by the snow S. .

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the step device 1 according to the above-described embodiments, and any aspect included in the concept of the present invention and the scope of claims can be applied. , and each configuration may be selectively combined as appropriate. For example, although the drive motor 10 drives the drive link 12 to rotate in the above embodiment, the drive link 12 may be driven by another actuator such as a cylinder instead of the drive motor 10 . Further, the shape, material, arrangement, size, etc. of each component in the above embodiments may be changed as appropriate according to specific aspects of the present invention.

1 step device 3 step plate (step for getting on and off)
10 drive motor (actuator)
11 link bracket (vehicle fixing member)
11c facing wall portion 12 drive link (first link arm)
12b projection 13 driven link (second link arm)
13b convex portion 13c concave portion 14 link arm (step support member)
20 vehicle body G1 first space G2 second space

Claims (4)

a step for boarding and alighting;
a vehicle body fixing member fixed to the vehicle body;
a step support member that supports the step for getting on and off at one end and extends in the vehicle width direction;
a first link arm having one end rotatably supported by the vehicle body fixing member and the other end rotatably supported by the other end of the step support member;
One end is rotatably supported by the vehicle body fixing member while being separated from the first link arm to the outside in the vehicle width direction, and the other end is rotatably supported by the other end of the step support member. a two-link arm;
an actuator that rotationally drives the first link arm,
By rotationally driving the first link arm by the actuator, the step for getting on and off is moved in the vehicle width direction between a deployed position located outside the vehicle body and a retracted position located below the vehicle body. A vertical link type step device for a vehicle,
At the retracted position of the step for getting on and off, the second link arm includes a convex portion formed at the other end portion of the second link arm so as to protrude toward the first link arm, and a vehicle width direction from the convex portion. A step device for a vehicle, comprising: a step device for a vehicle, comprising: a concave portion formed in a direction away from said first link arm on an outer side thereof. The first link arm has a projecting portion formed by projecting from the first link arm at the other end of the first link arm. 2. A step device for a vehicle according to claim 1, wherein said step device is formed so as to project into said recess of said second link arm and form a first space between said recess and said recess. The vehicle body fixing member has an opposing wall portion that faces the first link arm and the second link arm and extends in the vehicle width direction. While contacting and removing deposits deposited between the first link arm and the second link arm with the movement of the step for getting on and off, the first link is at the deployed position of the step for getting on and off. The arm and the second link arm curve upward from the outer side in the vehicle width direction to the inner side, and are formed to project obliquely to the inner side and the lower side in the vehicle width direction so as to form a second space together with the arm and the second link arm. 3. The vehicle step device according to 1 or 2. one end of the first link arm is rotatably supported by the vehicle body fixing member via a first link pin and has a cylindrical surface partially surrounding the first link pin;
One end of the second link arm is rotatably supported by the vehicle body fixing member via a second link pin, and has a cylindrical surface partially surrounding the second link pin. 4. The vehicle step device according to claim 3.

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