JP7408968B2 - Vehicle slope device - Google Patents

Description

The present invention relates to a vehicle slope device.

2. Description of the Related Art Conventionally, there is a slope device for a vehicle that deploys a slope plate stored below the vehicle floor to the lower end of a door opening. For example, the slope device described in Patent Document 1 includes a moving body that moves in the depth direction, that is, in the deployment and storage directions, inside a storage box in which the slope plate is stored. Moreover, this moving body is connected to the slope plate via a link member. Furthermore, this link member has an engaging portion (guide portion) that engages with a guide portion (guiding portion) formed on the side wall portion of the storage box at a position on the rear side (storage direction) of the connection point with respect to the moving body. body). As a result, while changing the inclination angle of the slope plate based on the slope shape set in the guide part, the slope plate is deployed from the storage box to the outside of the vehicle in conjunction with the movement of the moving object, and then returned to the storage box. It is possible to store it inside.

That is, by setting a long distance between the first connection point to the slope plate and the second connection point to the movable body, even if the vertical displacement of the engagement part based on the slope shape provided on the guide part is small, , the slope plate connected to the movable body via the link member can be tilted significantly. The slope device of the prior art is thus configured to reduce the storage space in the vertical direction and improve the ease of mounting on a vehicle.

Japanese Patent Application Publication No. 2003-112578

However, with the configuration of the prior art described above, it is difficult to bring the rear end of the slope plate developed at the lower end of the door opening close to the vehicle floor. As a result, there is a problem in that an additional extension member, such as a storage box lid member, is required to span between the rear end of the slope plate and the vehicle floor. However, there was still room for improvement.

The present invention has been made to solve the above-mentioned problems, and its purpose is to provide a slope device for a vehicle in which a slope plate can be placed closer to the vehicle floor.

A slope device for a vehicle that solves the above problem includes a slope plate that is deployed at the lower end of a door opening, a guide rail that extends in the direction of expansion and retraction of the slope plate, and a drive shoe that moves in the direction in which the guide rail extends. a link member having a first connection point rotatably connected to the rear end of the slope plate and a second connection point rotatably connected to the drive shoe; , the slope plate is configured to move in the extending direction of the guide rail in conjunction with the drive shoe while maintaining the posture of the link member based on the engagement state of the link member with the guide rail. the first connection point and the second connection point in a state in which the slope plate is deployed to the door opening by moving the rear end of the slope plate to the front end of the guide rail; A rotation fulcrum of the link member is formed between the point and the rotation fulcrum of the link member in the extending direction of the guide rail based on the movement of the drive shoe from the rear end side to the front end side of the guide rail. The device further includes a lift mechanism configured to rotate the link member and lift the rear end portion of the slope plate when the distance from the second connection point changes.

According to the above configuration, the rear end of the slope plate is driven by the driving force of the drive shoe that moves from the rear end side of the guide rail toward the front end side in succession to the operation of deploying the slope plate to the door opening. The link member can be rotated in the direction of lifting the section. Furthermore, the lifting position of the rear end can be arbitrarily set based on the amount of rotation of the link member and the length of the link member in this case. This allows the slope plate to be placed closer to the vehicle floor.

Furthermore, the device can be made smaller by taking advantage of its simple configuration. In particular, a lift mechanism is formed in which the link member rotates when the slope plate is deployed at the door opening and also rotates the link member based on the movement of the drive shoe along the extending direction of the guide rail. Therefore, the thickness in the vertical direction can be easily reduced. Accordingly, it is possible to improve the ease of mounting on a vehicle.

A vehicle slope device that solves the above problem is connected to the link member at a position between the first connection point and the second connection point, so that the slope device integrally moves with the link member in the extending direction of the guide rail. Preferably, the lift mechanism includes a moving driven shoe, and the lift mechanism is configured such that the link member rotates using a third connection point, at which the driven shoe is connected to the link member, as the rotation fulcrum. .

According to the above configuration, the link member can be stably supported by the driving shoe and the driven shoe. By using the third connection point formed by the driven shoe as a rotation fulcrum, the link member can be rotated stably.

In the vehicle slope device that solves the above problem, the third connection point is provided on the other side of the driven shoe and the link member with respect to the elongated hole provided on one side of the driven shoe and the link member. The lift mechanism is configured such that the lift mechanism prevents the driven shoe from moving toward the front end of the guide rail by coming into contact with the driven shoe when the slope plate is unfolded. It is preferable to include a stopper portion for regulating.

According to the above configuration, even after the driven shoe comes into contact with the stopper part, the shaft-like part apparently moves within the elongated hole at the connecting part of the link member to the driven shoe, so that the driving shoe is not affected. Then, the guide rail is allowed to move from the rear end side to the front end side. As a result, the link member rotates about the shaft portion inserted into the elongated hole as a fulcrum. In other words, by moving the drive shoe along the direction of extension of the guide rail while the movement of the driven shoe is restricted, the distance between the pivot point of the link member and the second connection point to the drive shoe in the direction of extension changes. do. Thereby, the link member that engages with the guide rail via the driving shoe and the driven shoe can be stably rotated.

In the vehicle slope device that solves the above problems, the guide rail is provided with a driven guide portion that engages with the driven shoe to guide the driven shoe in the extending direction of the guide rail, and the lift mechanism Preferably, the driven guide portion is formed with a curved portion extending upward from the rear end side of the guide rail toward the front end side at the front end portion of the guide rail.

According to the above configuration, when the slope plate is unfolded at the door opening, the driven shoe is guided in the vertical direction by being guided by the curved part provided in the driven guide part at the front end of the guide rail. It moves in the extending direction of the guide rail in conjunction with the drive shoe while being accompanied by a displacement of . Furthermore, in accordance with this, the distance between the third connection point and the second connection point of the link member in the extending direction of the guide rail changes. As a result, based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side, the third connection point is used as a rotation fulcrum to link the rear end of the slope plate upward. The member can be rotated.

In the vehicle slope device that solves the above problem, the lift mechanism is configured to contact the link member toward the front end of the guide rail when the slope plate is unfolded, thereby causing the lift mechanism to contact the link member toward the front end side of the guide rail. It is preferable that an abutment member forming the rotation fulcrum is provided at the portion.

According to the above configuration, when the link member moves toward the front end of the guide rail in a state in which it is in contact with the abutting member, the abutting position of the link member with respect to the abutting member also moves. Furthermore, in accordance with this, the distance between the contact portion of the link member with respect to the contact member and the second connection point with respect to the drive shoe in the guide rail extending direction changes. As a result, based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side, the rear end portion of the slope plate is rotated using the contact portion of the link member with respect to the contact member as a rotation fulcrum. The link member can be rotated in the upward lifting direction.

In the vehicle slope device that solves the above problem, the lift mechanism moves the link member toward the rear end of the guide rail in conjunction with the drive shoe when the slope plate is expanded. Accordingly, it is preferable to include a return fulcrum forming part that comes into contact with the link member and forms a second rotation fulcrum on the link member.

According to the above configuration, the link member can be stably rotated in the direction of pulling down the rear end of the slope plate based on the movement of the drive shoe toward the rear end of the guide rail. Continuing with this pulling down operation, the slope plate can be moved in the storage direction together with the link member.

In the vehicle slope device that solves the above problem, the lift mechanism may include a position holding mechanism that holds the formation position of the rotation fulcrum in the extending direction of the guide rail when the slope plate is expanded. preferable.

According to the above configuration, movement of the drive shoe along the extending direction of the guide rail can be more directly converted into rotation of the link member. As a result, the rear end of the slope plate can be lifted more smoothly based on the movement of the drive shoe toward the front end of the guide rail, and the drive shoe moves toward the rear end of the guide rail. Based on the movement, the rear end of the slope plate raised above it can be pulled down.

In other words, by maintaining the formation position of the rotation fulcrum, even if the direction of movement of the drive shoe is reversed, the drive shoe moves in the direction in which the guide rail extends, and the drive shoe rotates in conjunction with this drive shoe. It is possible to maintain synchronization with the link member. Thereby, it is possible to smoothly switch between the lifting operation and the lowering operation.

In the vehicle slope device that solves the above problems, the lift mechanism includes a position holding mechanism that holds the formation position of the rotation fulcrum in the extending direction of the guide rail when the slope plate is expanded, The third connection point, which serves as a rotational fulcrum, is formed by inserting a shaft-like part provided in the driven shoe into a long hole provided in the link member, and the position holding mechanism includes: a stopper portion that restricts movement of the driven shoe toward the front end of the guide rail by contacting the driven shoe when the slope plate is expanded; and a stopper portion that restricts movement of the driven shoe toward the front end side of the guide rail; It is preferable to include an engaging member that restricts movement of the driven shoe toward the rear end of the guide rail by engaging with the guide rail.

According to the above configuration, it is possible to form, with a simple configuration, a position holding mechanism that can maintain the position at which the rotation fulcrum is formed by the shaft-shaped portion of the driven shoe, regardless of the moving direction of the drive shoe.
In the vehicle slope device that solves the above problem, the engaging member slides in contact with a cam surface provided on the drive shoe while being supported by the guide rail, so that the engagement member slides along the extending direction of the guide rail. Preferably, the drive shoe is engaged with and disengaged from the driven shoe based on movement of the drive shoe.

According to the above configuration, the engagement member is engaged with and disengaged from the driven shoe in conjunction with the movement of the link member that lifts or lowers the rear end of the slope plate by movement of the drive shoe along the extending direction of the guide rail. can be done. As a result, the movement of the driven shoe toward the rear end of the guide rail can be restricted and released at appropriate timing with a simple configuration.

In the vehicle slope device that solves the above problem, the lift mechanism is configured such that the first connection point moves toward the rear end of the guide rail with respect to the rotation fulcrum due to rotation of the link member. It is preferable that

According to the above configuration, from the direction in which the slope plate is deployed at the door opening, that is, from the direction in which the door opening opens to the outside of the vehicle, the slope plate is attached to the edge of the vehicle floor facing the door opening. The rear end of the can be brought closer. This allows the slope plate to be placed closer to the vehicle floor.

In the vehicle slope device that solves the above problem, the rear end of the slope plate engages with the edge of the vehicle floor facing the door opening when lifted upward by rotation of the link member. It is preferable that an engaging portion is provided.

According to the above configuration, the load of the slope plate can be supported by the vehicle floor. This makes it possible to reduce the load on the lift mechanism and ensure high reliability and durability.

In the vehicle slope device that solves the above problem, the rear end of the slope plate is lifted upward by rotation of the link member at the second end of the link member where the second connection point is provided. It is preferable that a rotation restriction part is provided that restricts rotation of the link member by coming into contact with a bottom plate part provided on the guide rail from above in this state.

According to the above configuration, the amount of rotation of the link member can be defined with a simple configuration. This allows the slope plate to be placed closer to the vehicle floor. In addition, the load applied to the link member can be supported by the bottom plate portion of the guide rail that the rotation regulating portion abuts. Thus, high reliability and durability can be ensured.

A vehicle slope device that solves the above problems includes a drive cable connected to the drive shoe, a sliding path extending along the extending direction of the guide rail, and a sliding path for sliding the driving cable along the sliding path. It is preferable to include an actuator for causing

According to the above configuration, the drive shoe can be stably moved in the extending direction of the guide rail with a simple configuration. By taking advantage of the simple configuration and reducing the size, it is possible to improve the ease of mounting on a vehicle.

A slope device for a vehicle that solves the above problem is provided with a slope device that connects the link member to a position on the distal side of the first connection point at the first end of the link member where the first connection point to the slope plate is provided. A drop-off prevention member having a rotational connection point and held at a side end of the slope plate is provided, and when the link member rotates in a direction in which the rear end of the slope plate is lifted, the drop-off prevention member It is preferable that the slope plate be constructed so as to be raised toward the upper surface side of the slope plate.

According to the above configuration, the falling-off prevention member lifted above the top surface of the slope plate forms the side wall portion, making it difficult for objects moving on the slope plate to fall off the slope plate. Further, when the slope plate is stored, the falling-off prevention member held at the side end portion thereof does not protrude upward from the upper surface of the slope plate, or the amount of protrusion can be suppressed. Accordingly, it is possible to improve the ease of mounting on a vehicle.

A slope device for a vehicle that solves the above problems is rotatably connected to the slope plate and rotatably connected to the fall prevention member, so that the first connection point to the slope plate is rotatably connected to the fall prevention member. and a second link member forming a parallel link together with the first end of the link member having the rotational connection point with the falling-off prevention member.

According to the above configuration, the fall prevention member can be lifted while maintaining the posture of the fall prevention member. As a result, it is possible to improve its function as a side wall part for preventing falling off, and at the same time, it is possible to ensure its high design quality.

In the vehicle slope device that solves the above problem, it is preferable that the rotational connection point with the fall prevention member is located above the first connection point with the slope plate.
According to the above configuration, when the link member rotates in the direction of lifting the rear end portion of the slope plate, the link member is unlikely to be caught at the rotational connection point with the falling-off prevention member. Thereby, based on the rotation of the link member, the falling-off prevention member held at the side end portion of the slope plate can be more smoothly lifted.

In the vehicle slope device that solves the above problem, it is preferable that the slope plate is provided with a recess for accommodating the drop-off prevention member that opens on the upper surface of the slope plate.
According to the above configuration, it is possible to protect the falling-off prevention member and improve the design.

The vehicle slope device that solves the above problem preferably includes a biasing member that biases the drop prevention member in a direction in which the drop prevention member is lifted.
According to the above configuration, the fall prevention member extending in the longitudinal direction of the slope plate can be more smoothly lifted upward based on the rotation of the link member.

According to the present invention, the slope plate can be placed closer to the vehicle floor.

FIG. 3 is a perspective view of the slope device provided below the door opening (stored state). FIG. 3 is a perspective view of the slope device provided below the door opening (in an unfolded state). (a) and (b) are side views of the slope device provided below the door opening (a: stored state, b: expanded state). FIG. 3 is an exploded perspective view of the slope device. FIG. 3 is a cross-sectional view of the slope device (V-V cross section in FIG. 3(a)). FIG. 3 is an exploded perspective view of the slope device. (a) and (b) are side views of the slope device in the first embodiment (a: at the time of deployment and storage operation, b: deployment state). A plan view of the slope device. A schematic configuration diagram of a drive cable and an actuator. FIG. 2 is a side view of the slope device in the first embodiment (formation of a rotation fulcrum). FIG. 3 is a side view of the slope device in the first embodiment (link member rotation). FIG. 2 is a side view (top position) of the slope device in the first embodiment. FIG. 2 is a side view of the slope device in the first embodiment (backward movement position). (a) to (c) are side views of the slope device in the first embodiment (a: formation of the second rotation fulcrum, b, c: rotation of the link member). FIG. 3 is a cross-sectional view of the slope device in the second embodiment (before the rotation fulcrum is formed). FIG. 3 is a cross-sectional view of the slope device in the second embodiment (formation of a rotation fulcrum and rotation of a link member). FIG. 3 is a cross-sectional view (top position) of the slope device in the second embodiment. FIG. 3 is a cross-sectional view of the slope device in the second embodiment (rearward movement position). FIG. 7 is a side view of the slope device in the third embodiment (formation of a rotation fulcrum). FIG. 7 is a side view of the slope device in the third embodiment (link member rotation). The side view (top position) of the slope device in a 3rd embodiment. FIG. 7 is a side view of the slope device in the third embodiment (backward movement position). FIG. 3 is a perspective view of a slope plate provided with a falling-off prevention member (in a lifted state). FIG. 3 is a side view of a slope plate provided with a falling-off prevention member (in a lifted state). An explanatory diagram of the operation of the slope device in the fourth embodiment (before lifting). An explanatory diagram of the operation of the slope device in the fourth embodiment (during lifting). (a) and (b) are sectional views of a slope plate provided with a falling-off prevention member. FIG. 7 is an explanatory diagram of a parallel link formed by a second link member that connects the slope plate and the fall prevention member together with the first end of the link member. FIG. 7 is a perspective view showing a housing recess for a falling-off prevention member provided at a side end of a slope plate. (a) and (b) are sectional views of the vicinity of the side end of the slope plate provided with a housing recess for the falling-off prevention member. (a) to (c) are explanatory diagrams of a biasing member interposed between a slope plate and a falling-off prevention member. The side view of another example of a slope device. (a) and (b) are side views of the slope device in a 5th embodiment. FIG. 3 is an enlarged view of the vicinity of the lever member provided on the guide rail. FIG. 3 is an enlarged view of the vicinity of the lever member provided on the guide rail. FIG. 3 is an enlarged sectional view of the vicinity of a lever member provided on the guide rail. FIG. 3 is an enlarged sectional view of the vicinity of a lever member provided on the guide rail. (a) and (b) are side views of the slope device in a 5th embodiment. (a) and (b) are side views of the slope device in a 5th embodiment.

[First embodiment]
A first embodiment of a slope device for a vehicle will be described below with reference to the drawings.
As shown in FIGS. 1, 2, and 3(a) and 3(b), the vehicle 1 of this embodiment includes a slope device that deploys a slope plate 10 at the lower end of the door opening 3 provided in the vehicle body 2. 11 are provided. In the vehicle 1 of this embodiment, the slope device 11 is installed in a storage box 12 provided below the door opening 3. Specifically, this storage box 12 has an opening 12a in the same direction as the door opening 3 (left side in FIG. 3). Then, the slope device 11 of this embodiment deploys the slope plate 10 stored in the storage box 12 outside the vehicle through this opening 12a, and returns the expanded slope plate 10 to the storage box 12. It is configured to be stored inside.

Note that the door opening 3 in which this slope device 11 is installed is, for example, a rear opening (back door) of the vehicle 1, or a side opening (side door) that is opened and closed by a sliding door or a so-called glide door. is assumed. By using the slope plate 10 developed at the door opening 3, it is possible to easily load, for example, a wheelchair or a bicycle into the vehicle compartment.

To be more specific, as shown in FIGS. 3 to 5, the slope device 11 of the present embodiment is configured to deploy a slope plate 10 that is pushed out of the vehicle from its storage box 12 and deployed to the lower end of the door opening 3. It is provided with a pair of guide rails 20, 20 extending in the storage direction, that is, in the depth direction (left-right direction in FIG. 3) within the storage box 12 (see FIGS. 1 and 2). The slope device 11 also includes a pair of driving shoes 22, which are provided so as to be slidable along the extending direction of each of the guide rails 20 in engagement with each of the guide rails 20, respectively. It is equipped with 22. The slope device 11 of the present embodiment is rotatably connected to the rear end portion 10r of the slope plate 10 which is pushed out of the vehicle from the storage box 12 with its front end portion 10f leading, and each of the above A pair of link members 25, 25 are provided which are rotatably connected to the drive shoe 22, respectively.

As shown in FIGS. 1, 2, and 6, each guide rail 20 of the present embodiment is pulled back from the rear end 10r side so as to extend both sides in the width direction of the slope plate 10 stored in the storage box 12. They are arranged substantially parallel to each other in a sandwiching manner. In addition, in the slope device 11 of this embodiment, these guide rails 20 are mutually connected via the fixing members 27 and 28. The slope device 11 of this embodiment is thereby configured to maintain a constant distance between the respective guide rails 20, 20.

Further, as shown in FIGS. 4, 5, and 7(a) and 7(b), each link member 25 of this embodiment has an elongated substantially flat outer shape. Furthermore, each of these link members 25 is provided at both ends thereof in the longitudinal direction, with a hole passing through each of these link members 25 in the thickness direction (in the left-right direction in FIG. 5, in the direction orthogonal to the plane of the paper in FIG. 7). Through holes 31 and 32 are provided. Each drive shoe 22 of this embodiment includes a shaft portion 22a that is inserted into a through hole 32 provided at the second end portion 25b of the link member 25.

Further, the slope device 11 of this embodiment includes a pair of connecting members 35, 35 each having a shaft-shaped portion 35a that is inserted into a through hole 31 provided at the first end 25a of the link member 25. Each of these connecting members 35, 35 is provided with a fixing portion 35b for the rear end portion 10r of the slope plate 10.

That is, in the slope device 11 of this embodiment, the first connection point X1 of each link member 25 with respect to the slope plate 10 is formed using the shaft-shaped portion 35a of each of these connection members 35 as a support shaft. The second connection point X2 of each link member 25 with respect to each drive shoe 22 is formed using the shaft-shaped portion 22a of each drive shoe 22 as a support shaft.

Furthermore, each guide rail 20 of this embodiment includes a groove-shaped link guide portion 37 in which the link member 25 is disposed inside with the first end portion 25a protruding from the upper end portion thereof. Further, each guide rail 20 has an opening in the side wall surface 37s of the link guide portion 37, and a groove-shaped groove that extends in the extending direction of the guide rail 20 (left-right direction in FIG. 7) together with the link guide portion 37. It is provided with drive guide parts 38, 38. Each drive shoe 22 of this embodiment is provided with an engagement portion 22b for the drive guide portion 38 provided on each corresponding guide rail 20.

In the slope device 11 of the present embodiment, the engaging portions 22b of each of these driving shoes 22 are connected to the engaging portions 22b of the slope plate 10 among the driving guide portions 38, 38 provided on each guide rail 20, respectively. It engages with the drive guide portion 38 located on the right side (right side in FIG. 5) in the deployment direction. Each drive shoe 22 of this embodiment is guided by each of these drive guide parts 38, so that it moves along the extending direction of each guide rail 20 while its vertical movement is restricted. It has become.

The slope device 11 of the present embodiment also includes a pair of driven shoes rotatably connected to each link member 25 at a position between the first connection point X1 and the second connection point X2. 40,40.

Specifically, each link member 25 of this embodiment is provided with a long hole 43 extending in the longitudinal direction at a position between the first end 25a and the second end 25b. Each driven shoe 40 of this embodiment includes a shaft portion 40a that is inserted into the elongated hole 43, and an engaging portion 40b provided at the end of the shaft portion 40a.

Further, each guide rail 20 of this embodiment has an opening in the side wall surface 37s (the left side wall surface in FIG. 5) of the link guide section 37 in the extending direction (in the drawing), similarly to the drive guide section 38 described above. 7, is provided with a groove-shaped driven guide portion 45 extending in the left-right direction). The driven guide section 45 of this embodiment is provided above each drive guide section 38 described above. Further, each driven shoe 40 of this embodiment is configured so that its engaging portion 40b engages with this driven guide portion 45, respectively. In the slope device 11 of the present embodiment, each driven shoe 40 can move in the vertical direction in conjunction with each driving shoe 22 and integrally with each driving shoe 22 and each link member 25. It is configured to move in the extending direction of each guide rail 20 in a regulated state.

More specifically, as shown in FIG. 7(a), the slope device 11 of this embodiment has a structure in which each link member 25 is connected to each guide rail 20 via each driving shoe 22 and each driven shoe 40 as described above. The posture of each of these link members 25 is maintained based on the engaged state. Specifically, each link member 25 of this embodiment has its first connection point X1 with respect to the slope plate 10 located above the second connection point X2 with respect to the drive shoe 22, and the first connection point X1 with respect to the drive shoe 22. It is held in a posture (forward tilted posture) arranged closer to the front end 20f of the guide rail 20 than the second connection point X2, that is, in the direction in which the slope plate 10 is deployed (on the left side in FIG. 7).

Further, as shown in FIGS. 4, 5, and 7, each guide rail 20 of this embodiment has a link guide section 37 in which each link member 25 held in such a forward-inclined position is disposed inside. A top plate portion 46 is provided at the top and extends in the extending direction. The slope device 11 of the present embodiment has each of the link members 25 provided with the first connection point X1 to the slope plate 10 on the lower surface 46s of the top plate portion 46 provided on each guide rail 20. The first end portion 25a is configured to be in sliding contact.

That is, as shown in FIG. 7, the slope device 11 of this embodiment moves each link member 25 connected to each drive shoe 22 by moving each drive shoe 22 in the extending direction of the guide rail 20. Then, the slope plate 10 is pushed out of the storage box 12 to be deployed outside the vehicle, and then pulled back to be stored in the storage box 12. Further, in each link member 25 of the present embodiment, the shaft-shaped portion 40a of each driven shoe 40 inserted into the elongated hole 43 is located at the end 43a of the elongated hole 43 on the first end 25a side. This results in a forward leaning posture as shown above. Furthermore, in the slope device 11 of the present embodiment, at this time, the first end portions 25a of each of these link members 25 slide into (engage with) the top plate portion 46 (lower surface 46s) provided on each guide rail 20. ), the rotation of each link member 25 based on a change in the position of the shaft-shaped portion 40a inserted into the elongated hole 43 is restricted. In the slope device 11 of the present embodiment, based on the engagement state of each link member 25 with each guide rail 20, each driving shoe is 22, an attitude holding mechanism 50 is formed that moves the slope plate 10 in the extending direction of each guide rail 20.

Note that, as shown in FIGS. 5 and 7, the slope device 11 of this embodiment is in a state where the first end portion 25a of each link member 25 engages with the top plate portion 46 of each guide rail 20. , is provided with a slope support section 48 having a roller 48a as a rotating member that comes into contact with the lower surface 10s of the slope plate 10. In the slope device 11 of this embodiment, the slope plate 10 is thus configured to move in the extending direction of each guide rail 20 in conjunction with each drive shoe 22 in a stable, substantially horizontal posture. There is.

Further, as shown in FIG. 7B, in the slope device 11 of this embodiment, each drive shoe 22 is moved from the rear end 20r side to the front end 20f side of each guide rail 20 (from the right side to the left side in FIG. 7). ), the lower surface 10s of the slope plate 10 does not come into contact with the roller 48a at the front end 20f of each guide rail 20. The slope device 11 of the present embodiment thereby allows the slope plate 10 to tilt with the first connection point X1 provided at the first end 25a of each link member 25 as a fulcrum. The plate 10 is deployed at the lower end of the door opening 3.

More specifically, as shown in FIG. 8, the slope device 11 of this embodiment includes a pair of drive cables 51 (51R, 51L) routed along the extending direction of each guide rail 20 (20R, 20L). It is equipped with In addition, in the slope device 11 of this embodiment, each of these drive cables 51 is connected to each drive shoe 22 (22R, 22L) that engages with the drive guide portion 38 provided on each guide rail 20 (20R, 20L). On the other hand, one end side (connection end 51a) of each is connected. The slope device 11 of this embodiment includes an actuator 52 that uses the motor 52m as a drive source to slide each of these drive cables 51 along the extending direction of each guide rail 20.

That is, the slope device 11 of this embodiment moves each drive shoe 22 in the extending direction of each guide rail 20 based on the driving force of the actuator 52 transmitted via each drive cable 51. As a result, the slope plate 10 connected to each drive shoe 22 via each link member 25 (25R, 25L) is moved in the unfolding and retracting directions.

As shown in FIGS. 6 and 8, the slope device 11 of the present embodiment has a substantially flat plate shape extending in the width direction (in the vertical direction in FIG. 8) of the slope plate 10, and each guide rail 20 (20R, 20L). ) is provided with a bracket 53 connected to the rear end portion 20r of the vehicle. Further, the actuator 52 of this embodiment is fixed to a substantially central portion of the bracket 53 in the longitudinal direction. Furthermore, the slope device 11 of the present embodiment includes a casing pipe 55 (55R, 55L) connecting the actuator 52 and the inner drive guide portion 38a of each guide rail 20, and a It includes a casing pipe 56 (56R, 56L) that connects with the outer drive guide portion 38b. Each of the drive cables 51 of this embodiment is configured to be driven by the actuator 52 using the casing pipes 55, 56 and the drive guide portions 38 (38a, 38b) as sliding paths 58. ing.

That is, in the slope device 11 of this embodiment, one drive cable 51L is routed within the inner drive guide portion 38a of each guide rail 20 (20R, 20L) via the casing pipes 55R, 55L. Further, the other drive cable 51R is routed within the outer drive guide portion 38b of each guide rail 20 (20R, 20L) via the casing pipes 56R, 56L. In the slope device 11 of this embodiment, the connection end 51a of one drive cable 51R is connected to the drive shoe 22R that engages with the right guide rail 20R, and the other drive cable 51L The connecting end 51a is connected to a drive shoe 22L that engages with the left guide rail 20L.

In the slope device 11 of this embodiment, each drive cable 51 (51R, 51L) has its connection end 51a, 51a connected to each drive shoe 22 (22R, 22L) within the inserted drive guide section 38, respectively. It is connected to the engaging portion 22b of. The free ends 51b, 51b of each of these drive cables 51 (51R, 51L) are connected to the respective guide rails 20, 20 on the side where the connection ends 51a, 51a are wired, and the guide rails are opposite to each other on the left and right. 20, 20 are configured to be routed within the drive guide portion 38 thereof.

Moreover, as shown in FIG. 9, each drive cable 51 (51R, 51L) of this embodiment has a structure as a spur tooth type rack belt 60. The actuator 52 of this embodiment includes a pinion gear 61 that rotates in mesh with both drive cables 51 (51R, 51L).

That is, in the actuator 52 of this embodiment, each drive cable 51 (51R, 51L) meshes with the pinion gear 61 at two positions (vertical positions in FIG. 9) sandwiching the rotation axis 61x of the pinion gear 61. It is configured as follows. In the slope device 11 of this embodiment, the drive shoes 22 (22R, 22L) are synchronized with each other based on the sliding of the drive cables 51 (51R, 51L) driven by the actuator 52. The guide rails 20 (20R, 20L) are configured to move toward the front end 20f side or the rear end 20r side.

(lift mechanism)
Next, the configuration of the lift mechanism installed in the slope device 11 of this embodiment will be explained.

As shown in FIG. 10, each guide rail 20 of this embodiment has a rear end 10r of the slope plate 10 that moves to a front end 20f of each guide rail 20, so that the slope plate 10 is connected to the door opening. 3, the first end portion 25a of each link member 25 is configured to be detached from the top plate portion 46 of each guide rail 20. Specifically, in each guide rail 20 of this embodiment, the front end 46f of the top plate portion 46 is closer to the rear end of the guide rail than the front end 66f of the bottom plate portion 66 forming the bottom surface 37b of the link guide portion 37. 20r side (right side in FIG. 10). In this way, each guide rail 20 of this embodiment, when each drive shoe 22 moves to its front end 20f, each link member in a state where each drive shoe 22 engages with the drive guide part 38. 25 is configured such that the first end portion 25a of each guide rail 20 is detached from the top plate portion 46 of each guide rail 20.

Further, as shown in FIGS. 10 to 12, the slope device 11 of the present embodiment is configured such that when the slope plate 10 is deployed in the door opening 3 as described above, the slope plate 10 contacts each of the driven shoes 40. , a stopper portion 64 is provided for restricting movement of each driven shoe 40 toward the front end 20f of each guide rail 20. In the slope device 11 of the present embodiment, based on the engagement state of each link member 25 with each guide rail 20, the slope device 11 moves from the rear end 20r side of the guide rail toward the front end 20f side. A lift mechanism 70 is formed in conjunction with each drive shoe 22 to lift the rear end 10r of the slope plate 10 upward.

More specifically, as shown in FIGS. 4 and 7, the slope device 11 of this embodiment includes a pair of end blocks 65, 65 fixed to the front end 20f of each guide rail 20. The stopper portion 64 of this embodiment is provided integrally with each of these end blocks 65.

Further, as shown in FIGS. 10 to 12, in the slope device 11 of this embodiment, each link member 25 has a first end 25a detached from the top plate portion 46 of each guide rail 20 as described above. This allows the driven shoe 40 inserted into the elongated hole 43 to rotate about the shaft portion 40a as a fulcrum (rotation fulcrum Px). Furthermore, at this time, the shaft-like part 40a apparently moves within the elongated hole 43, so that the third connection point X3 for each driven shoe 40 formed by these elongated holes 43 and the shaft-like part 40a and each drive The distance between the shoe 22 and the second connection point X2 changes. Accordingly, in the slope device 11 of the present embodiment, even after each driven shoe 40 contacts each stopper portion 64 as described above, each driving shoe 22 continues to move behind each guide rail 20. It is possible to move from the end 20r side toward the front end 20f (from the right side to the left side in each figure).

That is, by moving each driving shoe 22 along the extending direction of each guide rail 20 while the movement of each driven shoe 40 is restricted, the third connection point X3 and the second connection point in the extending direction of each guide rail 20 are connected. The distance from the connection point X2, that is, the distance (distance) d between the pivot point Px of each link member 25 and the second connection point X2 for each drive shoe 22 changes. In accordance with this, the slope device 11 of the present embodiment rotates each link member 25 that engages with each guide rail 20 via each driving shoe 22 and each driven shoe 40, so that each of these The rear end portion 10r of the slope plate 10 connected to the link member 25 is configured to be lifted upward.

Specifically, by moving each driving shoe 22 toward the front end 20f of each guide rail 20 with each driven shoe 40 in contact with each stopper portion 64, the inside of the elongated hole 43 of each link member 25 is moved. The position of the shaft-shaped portion 40a of the driven shoe 40 inserted into the driven shoe 40 apparently moves from the end 43a on the first end 25a side toward the end 43b on the second end 25b side. As a result, the slope device 11 of the present embodiment moves in the direction in which the first end 25a, where the first connection point X1 to the rear end 10r of the slope plate 10 is provided, is lifted (in the clockwise direction in each figure). , each link member 25 is configured to rotate.

Further, as shown in FIG. 13, in the slope device 11 of the present embodiment, each drive shoe 22 passes the front end 20f of each guide rail 20 in a manner that overtakes each driven shoe 40 in contact with each stopper portion 64. Move to the side. Furthermore, in the slope device 11 of the present embodiment, the second connection point X2 of each link member 25 extends beyond the third connection point X3 that constitutes the rotation fulcrum Px of each link member 25. It moves to the front end 20f side of the guide rail 20. The lift mechanism 70 of this embodiment further rotates each link member 25, thereby moving the first connection point X1 to the rear end 10r of the slope plate 10 to the guide rail from the rotation fulcrum Px. 20 toward the rear end 20r side.

Specifically, as shown in FIG. 12, in the slope device 11 of this embodiment, the movement position of each drive shoe 22 along the extending direction of each guide rail 20 is such that the rotation fulcrum Px of each link member 25 is At a position equal to the third connecting point X3, the rear end 10r of the slope plate 10 connected to the first end 25a is lifted to the uppermost position. Then, as shown in FIG. 13, as each link member 25 further rotates from this state, the rear end portion 10r of the slope plate 10 gradually lowers from the position lifted by each link member 25. , is configured to move toward the rear end portion 20r of each guide rail 20.

More specifically, in the slope device 11 of this embodiment, the rear end 10r of the slope plate 10 has a door opening 3 in the state lifted upward by the rotation of each link member 25 as described above. An engaging portion 72 that engages with a vehicle floor 71 facing the vehicle is provided.

Specifically, the slope device 11 of this embodiment is a slope plate in which the rear end 10r connected to each link member 25 moves toward the rear end 20r of each guide rail 20 while gently descending as described above. 10, the engaging portion 72 provided at the rear end 10r engages with the edge 71e of the vehicle floor 71 from above. In the vehicle 1 of this embodiment, the load of the slope plate 10 is thereby supported by the vehicle floor 71.

Further, each link member 25 is rotatable in the direction of lifting the rear end portion 10r of the slope plate 10 at the second end portion 25b of each link member 25 provided with the second connection point X2 for each drive shoe 22. In this state, a rotation restriction portion 74 is provided that restricts rotation of each link member 25 by contacting the bottom plate portion 66 of the guide rail 20 from above.

Specifically, each link member 25 of this embodiment has a flat surface 75 at its second end 25b. Furthermore, each link member 25 has a rotational position where the engaging portion 72 provided at the rear end 10r of the slope plate 10 engages with the edge 71e of the vehicle floor 71 facing the door opening 3 as described above. When this occurs, the flat surface 75 is configured to abut from above against the bottom surface 37b of the link guide section 37 in which each of the link members 25 is arranged. The slope device 11 of this embodiment thus has a configuration in which the rotation of each link member 25 (clockwise rotation in each figure) is restricted using the flat surface 75 as the rotation restriction portion 74. It has become.

In addition, as shown in FIGS. 14(a) to 14(c), the slope device 11 of this embodiment operates in conjunction with each drive shoe 22 in a state where each slope plate 10 is deployed in the door opening 3. When the link members 25 move toward the rear end portions 20r of each guide rail 20, each link member 25 is configured to come into contact with the front end 46f of the top plate portion 46. Furthermore, in the slope device 11 of the present embodiment, in this state, each driving shoe 22 further moves toward the rear end 20r of each guide rail 20, so that the portion that comes into contact with the front end 46f of the top plate 46 Each link member 25 rotates with Py as the second rotation fulcrum (in the counterclockwise direction in each figure). The slope device 11 of the present embodiment thereby pulls down the rear end 10r of the slope plate 10 lifted upward, and also operates in conjunction with each drive shoe 22 that moves toward the rear end 20r of each guide rail 20. The slope plate 10 is moved in the retracting direction.

That is, in the slope device 11 of this embodiment, the front end 46f of the top plate portion 46 functions as a return fulcrum forming portion 77 that forms a second rotation fulcrum Py on each link member 25. Further, the contact position of each link member 25 with respect to the front end 46f of this top plate portion 46 is such that each link member 25 rotates in conjunction with each drive shoe 22 and contacts the rear end portion 20r of each guide rail 20. By moving to the side, it gradually moves to the first end 25a side where the first connection point X1 to the rear end 10r of the slope plate 10 is provided. Each link member 25 of the present embodiment is configured such that the first end portion 25a thereof comes into sliding contact with the lower surface 46s of the corresponding top plate portion 46 due to the movement of the second rotation fulcrum Py. It is composed of

That is, as shown in FIG. 7(a), in the slope device 11 of this embodiment, the posture holding mechanism 50 again functions based on the engagement state of each link member 25 with respect to each guide rail 20. I come to do it. In the slope device 11 of this embodiment, the slope plate 10 moves integrally with each link member 25 and each drive shoe 22 toward the rear end 20r of the guide rail 20, so that the slope developed outside the vehicle can be adjusted. The structure is such that the board 10 is retracted and stored in the storage box 12.

Next, the effects of this embodiment will be explained.
(1) The slope device 11 includes a guide rail 20 that extends in the expansion and storage direction of the slope plate 10, a drive shoe 22 that moves in the direction in which the guide rail 20 extends, and a drive shoe 22 that rotates with respect to the rear end 10r of the slope plate 10. A link member 25 is provided, which has a first connection point X1 that is movably connected and a second connection point X2 that is rotatably connected to the drive shoe 22. Further, based on the engagement state of the link member 25 with the guide rail 20, the slope device 11 moves the slope plate 10 in the extending direction of the guide rail 20 in conjunction with the drive shoe 22 while maintaining the posture of the link member 25. A posture holding mechanism 50 configured to move is provided. Furthermore, in this slope device 11, when the rear end 10r of the slope plate 10 is moved to the front end 20f of the guide rail 20 and the slope plate 10 is expanded to the door opening 3, the first connection point A pivot point Px of the link member 25 is formed between X1 and the second connection point X2. Then, the slope device 11 adjusts the distance between the pivot point Px and the second connection point X2 in the extending direction of the guide rail 20 based on the movement of the drive shoe 22 from the rear end 20r side to the front end 20f side of the guide rail 20. A lift mechanism 70 is provided so that the link member 25 rotates as d changes, and the rear end 10r of the slope plate 10 is lifted.

According to the above configuration, following the operation of expanding the slope plate 10 into the door opening 3, the driving force of the drive shoe 22 that moves from the rear end 20r side of the guide rail 20 toward the front end 20f side is applied. Based on this, the link member 25 can be rotated in a direction that lifts up the rear end portion 10r of the slope plate 10. Furthermore, the lifting position of the rear end portion 10r can be arbitrarily set based on the amount of rotation of the link member 25 and the length of the link member 25 in this case. Accordingly, the slope plate 10 can be placed closer to the vehicle floor 71.

Furthermore, the device can be made smaller by taking advantage of its simple configuration. In particular, the link member 25 is rotated with the slope plate 10 deployed in the door opening 3, and the link member 25 is rotated based on the movement of the drive shoe 22 along the extending direction of the guide rail 20. Since the lift mechanism 70 is formed, its vertical thickness can be easily reduced. Thereby, the ease of mounting on the vehicle 1 can be improved.

For example, it becomes possible to mount it on a low-floor vehicle. Furthermore, this allows the slope plate 10 to have a gentle slope. As a result, better ease of getting on and off the vehicle can be ensured.

(2) The slope device 11 is connected to the link member 25 at a position between the first connection point X1 and the second connection point X2, and thereby moves together with the link member 25 in the extending direction of the guide rail 20. A driven shoe 40 is provided. The lift mechanism 70 is configured such that the link member 25 rotates about the third connection point X3, where the driven shoe 40 is connected to the link member 25, as a rotation fulcrum Px.

According to the above configuration, the link member 25 can be stably supported by the driving shoe 22 and the driven shoe 40. By using the third connection point X3 formed by the driven shoe 40 as the rotation fulcrum Px, the link member 25 can be rotated stably.

(3) The third connection point X3 is formed by inserting the shaft-shaped portion 40a of the driven shoe 40 into the elongated hole 43 provided in the link member 25. The lift mechanism 70 restricts the movement of the driven shoe 40 toward the front end 20f of the guide rail 20 by coming into contact with the driven shoe 40 when the slope plate 10 is deployed in the door opening 3. A stopper portion 64 is provided.

That is, the link member 25 rotates around the shaft-shaped portion 40a of the driven shoe 40 inserted into the elongated hole 43 thereof. Furthermore, the apparent movement of the shaft-shaped part 40a within the elongated hole 43 causes the third connecting point X3 for the driven shoe 40 and the second connection point for the drive shoe 22, which are formed by the elongated hole 43 and the shaft-like part 40a. The separation distance from the connecting point X2 changes. Therefore, even after the driven shoe 40 contacts the stopper portion 64, the drive shoe 22 is still allowed to move from the rear end 20r side of the guide rail 20 toward the front end 20f side. In other words, by moving the drive shoe 22 along the extending direction of the guide rail 20 while the movement of the driven shoe 40 is restricted, the rotation fulcrum Px of the link member 25 and the second The distance d between the connection points X2 changes. Thereby, the link member 25 that engages with the guide rail 20 via the drive shoe 22 and the driven shoe 40 can be stably rotated.

(4) In the lift mechanism 70, due to the rotation of the link member 25, the first connection point X1 with respect to the rear end 10r of the slope plate 10 moves toward the rear end 20r of the guide rail 20 with respect to the rotation fulcrum Px. configured to do so.

According to the above configuration, from the direction in which the slope plate 10 is deployed in the door opening 3, that is, from the direction in which the door opening 3 opens to the outside of the vehicle, the edge 71e of the vehicle floor 71 facing the door opening 3 is On the other hand, the rear end 10r of the slope plate 10 can be brought closer. Accordingly, the slope plate 10 can be placed closer to the vehicle floor 71.

(5) In the slope device 11, based on the movement of the drive shoe 22 toward the front end 20f of the guide rail 20, the second connection point X2 of the link member 25 with respect to the drive shoe 22 exceeds the pivot point Px. The guide rail 20 is configured to move toward the front end 20f of the guide rail 20.

According to the above configuration, it is possible to stably move the first connecting point X1 of the link member 25 to the rear end 10r of the slope plate 10 toward the rear end 20r of the guide rail 20 than the pivot point Px thereof. I can do it.

(6) The rear end portion 10r of the slope plate 10 has an engaging portion 72 that engages with the edge 71e of the vehicle floor 71 facing the door opening 3 when the link member 25 is rotated and lifted upward. will be provided.

According to the above configuration, the load of the slope plate 10 can be supported by the vehicle floor 71. Thereby, the load on the lift mechanism 70 can be reduced and high reliability and durability can be ensured.

In particular, in combination with the configurations (4) and (5) above, the rear end 10r of the slope plate 10, which has been lifted by the rotation of the link member 25, gently descends to the edge 71e of the vehicle floor 71. It will get closer. Thereby, a good state of engagement with the vehicle floor 71 can be ensured.

(7) The second end 25b of the link member 25 provided with the second connection point A rotation restriction portion 74 is provided that restricts rotation of the link member 25 by coming into contact with the bottom plate portion 66 provided on the rail 20 from above.

According to the above configuration, the amount of rotation of the link member 25 can be defined with a simple configuration. Accordingly, the slope plate 10 can be placed closer to the vehicle floor 71. In addition, the load applied to the link member 25 can be supported by the bottom plate portion 66 of the guide rail 20 with which the rotation restriction portion 74 is in contact. Thus, high reliability and durability can be ensured.

(8) The lift mechanism 70 is constructed by moving the link member 25 toward the rear end 20r of the guide rail 20 in conjunction with the drive shoe 22 when the slope plate 10 is expanded to the door opening 3. , is provided with a return fulcrum forming portion 77 that comes into contact with the link member 25 to form a second rotation fulcrum Py on the link member 25.

According to the above configuration, based on the movement of the drive shoe 22 toward the rear end 20r of the guide rail 20, the link member 25 is stably rotated in a direction to pull down the rear end 10r of the slope plate 10. be able to. Continuing with this pulling down operation, the slope plate 10 can be moved in the storage direction together with the link member 25.

(9) The slope device 11 includes a drive cable 51 connected to the drive shoe 22, a sliding path 58 extending along the extending direction of the guide rail 20, and a sliding path 58 along which the driving cable 51 is slid. an actuator 52 for causing the

According to the above configuration, the drive shoe 22 can be stably moved in the extending direction of the guide rail 20 with a simple configuration. By taking advantage of the simple configuration and reducing the size, it is possible to improve the ease of mounting on the vehicle 1.

(10) The posture holding mechanism 50 sets the link member in a posture in which the first connection point X1 with respect to the rear end portion 10r of the slope plate 10 is located above the second connection point X2 with respect to the drive shoe 22 and in the deployment direction of the slope plate 10. Hold 25.

According to the above configuration, following the operation of deploying the slope plate 10 to the door opening 3, the drive shoe 22 is moved toward the front end 20f of the guide rail 20 to immediately connect the first connection point X1. A rotation fulcrum Px is formed between the link member 25 and the second connection point X2, and the link member 25 can be rotated in a direction that lifts the rear end portion 10r of the slope plate 10.

(11) The guide rail 20 includes a drive guide portion 38 that engages with the drive shoe 22 to guide the drive shoe 22 in the extending direction of the guide rail 20, and a drive guide portion 38 that engages with the driven shoe 40 to guide the drive shoe 22 in the direction in which the guide rail 20 extends. and a driven guide portion 45 that guides the guide rail 20 in the extending direction of the guide rail 20.

According to the above configuration, the driving shoe 22 and the driven shoe 40 can be stably moved in the extending direction of the guide rail 20. By engaging the link member 25 with the guide rail 20 via these drive shoes 22 and driven shoes 40, the posture of the link member 25 can be stabilized.

(12) The guide rail 20 includes a top plate portion 46 extending in the extending direction of the guide rail 20 above the drive guide portion 38 and the driven guide portion 45. The posture holding mechanism 50 maintains the posture of the link member 25 in a state in which the first end 25a of the link member 25 provided with the first connection point X1 is in sliding contact with the lower surface 46s of the top plate portion 46. .

That is, as the first end 25a of the link member 25 comes into sliding contact with the lower surface 46s of the top plate 46, the link member 25 in the direction in which the rear end 10r of the slope plate 10 connected to the first end 25a is lifted. The rotation of can be regulated. Thereby, the posture of the link member 25 can be maintained with a simple configuration.

(13) When the drive shoe 22 moves to the front end 20f of the guide rail 20, the drive shoe 22 engages with the drive guide portion 38 at the first end 25a of the link member 25. is configured to be detached from the top plate portion 46.

According to the above configuration, while suppressing the length of the front end portion 20f of the guide rail 20 protruding from the storage box 12, the link member can be largely rotated when the slope plate 10 is expanded into the door opening 3. I can do it. Accordingly, the slope plate 10 can be placed closer to the vehicle floor 71.

(14) The guide rail 20 is constructed by moving the link member 25 toward the rear end 20r of the guide rail 20 in conjunction with the drive shoe 22 when the slope plate 10 is expanded to the door opening 3. , the link member 25 is configured to abut on the front end 46f of the top plate portion 46.

According to the above configuration, the front end 46f of the top plate portion 46 functions as the return fulcrum forming portion 77 that forms the second rotation fulcrum Py on the link member 25. Further, as the link member 25 rotates in conjunction with the drive shoe 22 and moves toward the rear end 20r of the guide rail 20, the contact position with respect to the front end 46f of the top plate portion 46 becomes the first end 25a. Move to the side. As a result, the first end portion 25a of the link member 25 comes into sliding contact with the lower surface 46s of the top plate portion 46, so that the posture based on the engagement state of the link member 25 with respect to the guide rail 20 is resumed. The holding mechanism 50 functions. Therefore, according to the above configuration, it is possible to more smoothly move the slope plate 10 in the storage direction following the pulling down operation of the rear end portion 10r.

(15) The slope device 11 had a roller 48a as a rotating member that comes into contact with the lower surface 10s of the slope plate 10 in a state in which the slope plate 10 moves in the extending direction of the guide rail 20 in conjunction with the drive shoe 22. A slope support portion 48 is provided. Thereby, the slope plate 10 can be moved in the deployment and storage directions in a stable posture.

[Second embodiment]
A second embodiment of a vehicle slope device will be described below with reference to the drawings. For convenience of explanation, the same components as those in the first embodiment will be denoted by the same reference numerals, and the explanation thereof will be omitted.

As shown in FIGS. 15 to 18, the slope device 11B of this embodiment has a posture holding mechanism 50B (50) and a lift mechanism 70B (70), compared to the slope device 11 of the first embodiment. The configuration is different.

To explain in detail, in the slope device 11B of this embodiment, each driven shoe 40B has a shaft shape that passes through the link member 25B in the thickness direction (in each figure, the direction perpendicular to the paper surface). Further, each link member 25B of this embodiment has a configuration in which the arrangement of the third connection point X3 with respect to each driven shoe 40B set between the first connection point X1 and the second connection point X2 does not change. There is. Furthermore, in the slope device 11B of this embodiment, the shaft end of each driven shoe 40B engages with the driven guide portion 45B of each guide rail 20B. Each driven shoe 40B of this embodiment is configured to move along the extending direction of each guide rail 20B while being guided by each of these driven guide portions 45B.

More specifically, each driven guide part 45B of this embodiment is used in the deployment and retraction operation region in which the slope plate 10 is moved integrally with each drive shoe 22 along the extending direction of each guide rail 20B (see FIG. 15). , a region closer to the rear end portion 20r than a curved portion 80 (to be described later)) extends substantially parallel to each drive guide portion 38 that guides each of these drive shoes 22. In the slope device 11B of this embodiment, the posture holding mechanism 50B is formed by regulating the relative positions of each driving shoe 22 and each driven shoe 40B and regulating the rotation of each link member 25B. The configuration is as follows.

Further, each driven guide portion 45B of this embodiment has a front end portion from the rear end portion 20r side of each guide rail 20B at the front end portion 20f of each guide rail 20B whose slope plate 10 is expanded to the door opening 3. A curved portion 80 is provided that extends upward toward the 20f side. In the slope device 11B of this embodiment, the lift mechanism 70B is thus formed.

That is, as shown in FIGS. 16 to 18, at the front end part 20f of each guide rail 20B where each driven shoe 40B engages with the curved part 80 of each driven guide part 45B, As a result, each driven shoe 40B moves in the extending direction of each guide rail 20B in conjunction with each drive shoe 22 while being displaced in the vertical direction.

However, at this time, since the position of the third connection point X3 with respect to each driven shoe 40B provided on each link member 25B does not change, this third connection point X3 and the second connection point X2 with respect to the driving shoe 22 are connected. Straight line distance is constant. Therefore, in the slope device 11B of this embodiment as well, by moving each drive shoe 22 with the slope plate 10 expanded, the third connection point X3 and the second connection point X2 in the extending direction of each guide rail 20B. By changing the distance d between the two link members 25B, each link member 25B rotates about the third connection point X3 as a rotation fulcrum Px (in the clockwise direction in each figure). The lift mechanism 70B of the present embodiment thereby moves the first end 25a of each link member 25B based on the movement of the drive shoe 22 from the rear end 20r side to the front end 20f side of the guide rail 20B. The rear end portion 10r of the slope plate 10 connected to the slope plate 10 is configured to be lifted upward.

As described above, the same effects as in the first embodiment can be obtained by the configuration of this embodiment. Further, the attitude holding mechanism 50B maintains the attitude of each link member 25B based on the engagement state of each link member 25B with each guide rail 20B via each driving shoe 22 and each driven shoe 40B. Thereby, with a simple configuration, the slope plate 10 can be moved integrally with each link member 25B in the deployment and storage direction while stably maintaining the posture of each link member 25B. .

[Third embodiment]
A third embodiment of a vehicle slope device will be described below with reference to the drawings. For convenience of explanation, the same components as in each of the above embodiments will be given the same reference numerals and the explanation thereof will be omitted.

As shown in FIGS. 19 to 22, the slope device 11C of this embodiment is different from the slope devices 11, 11B in each of the above embodiments in the configuration of its lift mechanism 70C (70, 70B).

To explain in detail, in the slope device 11C of this embodiment, each driven guide part 45C extends substantially parallel to each drive guide part 38 over the entire area in the extending direction of each guide rail 20C. Further, each of the driven guide parts 45C of this embodiment has an upper opening that opens above (upper side in each figure) at the front end 20f of each guide rail 20C where the slope plate 10 is expanded to the door opening 3. 81. Then, in the slope device 11C of this embodiment, each driven shoe 40C is detached upward from each driven guide portion 45C through the upper opening 81, and the slope plate 10 is removed from the door opening 3. The configuration allows each link member 25C to rotate in the expanded state.

Note that each driven shoe 40C of this embodiment has the same configuration as each driven shoe 40B of the second embodiment. Each driven guide portion 45C also has the same groove shape as each driven guide portion 45B in the second embodiment (excluding the curved portion 80), except for the portion where the upper opening 81 is formed. are doing.

Further, in the slope device 11C of the present embodiment, when the slope plate 10 is expanded in the door opening 3, each link member 25C is integrated with each drive shoe 22 from the rear end 20r side of each guide rail 20C to the front end. A pair of contact members 82, 82 are provided which come into contact with each of these link members 25C by moving toward the portion 20f. Specifically, each contact member 82 of this embodiment contacts each link member 25C at a position between the first connection point X1 with respect to the slope plate 10 and the second connection point X2 with respect to each drive shoe 22. It is configured to touch. Furthermore, in the slope device 11C of this embodiment, each link member 25C moves toward the front end 20f side of each guide rail 20C in this state, so that each link member It is configured such that a rotation fulcrum Px of 25C is formed. In the slope device 11C of this embodiment, the rear end 10r of the slope plate 10 is thereby controlled based on the driving force of each drive shoe 22 that moves toward the front end 20f of each guide rail 20C. A lift mechanism 70C for lifting upward is formed.

That is, in the slope device 11C of this embodiment, each link member 25C moves toward the front end 20f of each guide rail 20C in a state in which it contacts each contact member 82, so that each contact member in the extending direction The distance d between the contact portion 25x of each link member 25 with respect to 82 and the second connection point X2 with respect to each drive shoe 22 changes. Specifically, as the drive shoe 22 moves toward the front end 20f of each guide rail 20B, the abutting portion 25x of each link member 25C with respect to each abutting member 82 is provided with the second connection point X2. By moving toward the second end 25b, the distance d between the second connection point X2 and the contact portion 25x with respect to each contact member 82 is reduced. In the slope device 11C of the present embodiment, each link member 25C is connected to the slope plate connected to the first end 25a, with the contact portion 25x for each contact member 82 serving as a rotation fulcrum Px. 10 (clockwise direction in each figure).

As shown in FIG. 22, in the slope device 11C of this embodiment, before the second connection point X2 moves beyond the pivot point Px of the link member 25C toward the front end 20f of the guide rail 20, The first connection point X1 is configured to move closer to the rear end 20r of the guide rail 20 than the pivot point Px. In this state, the slope device 11C of the present embodiment has a configuration in which the engaging portion 72 provided at the rear end portion 10r of the slope plate 10 engages with the edge 71e of the vehicle floor 71 facing the door opening 3. It has become.

As described above, the configuration of this embodiment can also provide the same effects as those of the above embodiments. Further, by taking advantage of the simple configuration, further miniaturization can be achieved.
[Fourth embodiment]
A fourth embodiment of a vehicle slope device will be described below with reference to the drawings. For convenience of explanation, the same components as in each of the above embodiments will be given the same reference numerals and the explanation thereof will be omitted.

As shown in FIGS. 23 and 24, the slope device 11D of this embodiment includes a pair of drop-off prevention members 101 held on the sides of the slope plate 10D at the side ends 100 on both sides in the width direction of the slope plate 10D. , 101.

In the slope device 11D of this embodiment, each of these fall prevention members 101 has an elongated, substantially flat outer shape. In addition, each of these drop-off prevention members 101 is placed in the longitudinal direction of the slope plate 10D with its thickness direction facing the width direction of the slope plate 10D (direction perpendicular to the plane of the paper in FIG. 24), and then It extends from the end 10r toward the front end 10f (from the right side to the left side in FIG. 24). Further, when the rear end portion 10r of the slope plate 10D is lifted upward by the operation of the lift mechanism 70D, each of these fall prevention members 101 protrudes upward from the upper surface 10a of the slope plate 10D. It is designed to be placed on the side of the The slope device 11D of this embodiment is thus configured such that an object moving on the slope plate 10D deployed at the lower end of the door opening 3 is unlikely to fall off the slope plate 10D.

More specifically, each fall prevention member 101 of this embodiment is rotatably connected to the first end 25a of each link member 25D that constitutes the lift mechanism 70D. Specifically, when the first end 25a of each link member 25D is the tip of each link member 25D, each of these fall prevention members 101 is provided at the first end 25a of each link member 25D. The pivot plate 10D has a rotational connection point Xa with the link member 25D at a position closer to the tip than the first connection point X1 with respect to the rear end 10r of the slope plate 10D. In addition, the slope device 11D of this embodiment has a position closer to the front end 10f of the slope plate 10D than the rotational connection point Xa between the link member 25D and the fall prevention member 101, and the slope plate 10D and fall prevention member It has a second link member 105 rotatably connected to the member 101. In the slope device 11D of this embodiment, such second link members 105 are provided at multiple locations in the longitudinal direction of the fall prevention member 101, including on the front end 10f side of the slope plate 10D (not shown). . Furthermore, in the slope device 11D of this embodiment, these second link members 105 each have a first connection point X1 with respect to the slope plate 10D and a rotation connection point Xa with the fall prevention member 101. A parallel link 110 is formed together with the first end 25a of the first end 25a. In the slope device 11D of this embodiment, each drop-off prevention member 101 held on the side of the slope plate 10D is thereby rotated by the rotation of each link member 25D that lifts the rear end 10r of the slope plate 10D. , is configured to be lifted toward the upper surface 10a of the slope plate 10D.

Note that the second link member 105 of this embodiment has an approximately flat plate-like outer shape. Further, the plate-side connection point Xb to the slope plate 10D and the wall-side connection point Xc to the falling-off prevention member 101 are connected to shaft-like members 111 and 112, which serve as rotation axes, at both longitudinal ends of the second link member 105, respectively. It is formed by arranging. Regarding the rotational connection point Xa between the fall prevention member 101 and the first end 25a of the link member 25D, a shaft member 113 serving as the rotation axis is also arranged at the rear end 101r of the fall prevention member 101. It is formed by

That is, as shown in FIGS. 25 and 26, as each link member 25D rotates in the direction in which the rear end 10r of the slope plate 10D is lifted, the first end 25a of each link member 25D appears to be , the tip portion provided with the rotational connection point Xa with the falling-off prevention member 101 rotates about the first connection point X1 with respect to the slope plate 10D. In the slope device 11D of the present embodiment, the rear end portion 101r of each fall prevention member 101 connected to the first end portion 25a of each link member 25D is thereby lifted above the slope plate 10D.

Furthermore, in the slope device 11D of this embodiment, the second link member 105, which forms the parallel link 110 with the first end 25a of each link member 25D, in conjunction with the rotation of each link member 25D, Like each link member 25D, it rotates in the clockwise direction in each figure, centering on the plate-side connection point Xb with respect to the slope plate 10D. The slope device 11D of the present embodiment is thus configured such that each drop-off prevention member 101 is lifted above the slope plate 10D while maintaining a posture parallel to the slope plate 10D.

When storing the slope plate 10D, each link member 25D rotates in the direction of pulling down the rear end 10r of the slope plate 10D (rotates counterclockwise in each figure). The rear end 101r of each drop-off prevention member 101 connected to the first end 25a of each link member 25D is also pulled down. Further, in conjunction with the rotation of each link member 25D, the second link member 105 similarly rotates in the counterclockwise direction in each figure, so that each fall prevention member 101 is attached to the slope plate 10D. It is pulled down to the side of the slope plate 10D while maintaining a posture parallel to the slope plate 10D. Thus, the slope device 11D of the present embodiment has the slope plate 10D held in a substantially horizontal position with each of these fall prevention members 101 being integrated with the side end portion 100 of the slope plate 10D. is drawn into a storage box 12 provided in the vehicle body 2.

Specifically, as shown in FIG. 27(a), in the slope device 11D of this embodiment, the vertical width W1 of each fall prevention member 101 is set to be approximately equal to the thickness W0 of the slope plate 10D. Furthermore, in the slope device 11D of the present embodiment, when the slope plate 10D and each drop-off prevention member 101 move in the deployment and storage directions in a substantially horizontal position, each slope plate 10D held on the side of the slope plate 10D The fall prevention member 101 is set so as not to protrude upward from the upper surface 10a of the slope plate 10D. In the slope device 11D of the present embodiment, the height H1 of each guide rail 20 arranged in the storage box 12 provided on the vehicle body 2 can be adjusted to the height H1 of the entire device when the slope plate 10D is stored. By setting the height to H0, the mountability on the vehicle 1 is improved.

Further, as shown in FIG. 27(b), in the slope device 11D of this embodiment, the rear end portion 10r of the slope plate 10D is lifted upward by the rotation of each link member 25D that constitutes the lift mechanism 70D. In this state, most of each falling-off prevention member 101 is arranged in a state that projects upward from the upper surface 10a of the slope plate 10D. Thereby, each of these falling-off prevention members 101 is configured to effectively function as a side wall portion 120 for preventing falling off.

More specifically, as shown in FIG. 28, in the slope device 11D of this embodiment, the rotational connection point Xa between the first end 25a of each link member 25 and each fall prevention member 101 is 25 is disposed above the first connection point X1 to the slope plate 10D provided at the first end 25a. That is, in the slope device 11D of this embodiment, when each link member 25 rotates in the direction of lifting the rear end portion 10r of the slope plate 10D, the rotational connection point Xa with each of the fall prevention members 101 is rotated. It has a structure that prevents it from getting caught. As a result, by the rotation of each link member 25, it is possible to smoothly lift each fall prevention member 101 held on the side of the slope plate 10D upward.

In addition, FIG. 28 shows the rotational position of each link member 25 in which the rotational connection point Xa is arranged at the lowest position, that is, the rotational connection point Xa and the first connection point before lifting the slope plate 10D upward. It shows the positional relationship of X1. In addition, in the second link member 105 that forms the parallel link 110 together with the first end 25a of each link member 25, the plate side connection point Xb to the slope plate 10D and the wall side connection point Xc to each fall prevention member 101 are connected. The length of the connecting line segment N2 is approximately equal to the length of the line segment N1 connecting the rotation connecting point Xa provided on each link member 25 and the first connecting point X1. Furthermore, the inclination angles θ1 and θ2 formed by these line segments N1 and N2 with respect to the longitudinal direction of the slope plate 10D and each drop-off prevention member 101 are also substantially equal to each other. Therefore, in the slope device 11D of the present embodiment, also in the second link member 105, the wall-side connection point Xc to the falling prevention member 101 is arranged higher than the plate-side connection point Xb to the slope plate 10D. has been done. As a result, the slope device 11D of the present embodiment smoothly slopes by rotating the second link member 105 without causing any catch on the plate-side connection point Xb and the wall-side connection point Xc. Each drop-off prevention member 101 can be lifted upward while maintaining a parallel attitude to the plate 10D.

Next, the effects of this embodiment will be explained.
(1) The slope device 11D includes a fall prevention member 101 held at the side end 100 of the slope plate 10D. Further, this fall prevention member 101 is located at a rotational connection point Xa with this link member 25D at a position on the distal side of the first connection point X1 with respect to the slope plate 10D provided at the first end 25a of the link member 25D. has. The drop-off prevention member 101 is configured to be lifted toward the upper surface 10a of the slope plate 10D by rotating the link member 25D in a direction in which the rear end 10r of the slope plate 10D is lifted.

According to the above configuration, the drop-off prevention member 101 lifted above the upper surface 10a of the slope plate 10D forms the side wall portion 120, so that an object moving on the slope plate 10D can fall off from the slope plate 10D. It becomes difficult to do. Further, when the slope plate 10D is stored, the fall prevention member 101 held at the side end 100 can be set so as not to protrude above the upper surface 10a of the slope plate 10D. Thus, it is possible to improve the ease of mounting on the vehicle 1.

(2) The slope device 11D is attached to the slope plate 10D and the fall prevention member 101 at a position closer to the front end 10f of the slope plate 10D than the rotational connection point Xa between the link member 25D and the fall prevention member 101. It includes a second link member 105 that is rotatably connected. The second link member 105 connects the parallel link 110 with the first end 25a of each link member 25D having the first connection point X1 with respect to the slope plate 10D and the rotation connection point Xa with the fall prevention member 101. Form.

According to the above configuration, the fall prevention member 101 can be lifted while maintaining the posture of the fall prevention member 101. As a result, the function as the side wall portion 120 for preventing falling off can be improved, and at the same time, high design quality can be ensured.

(3) The rotation connection point Xa between the first end 25a of the link member 25 and the fall prevention member 101 is the first connection point X1 with respect to the slope plate 10D provided at the first end 25a of each link member 25. located above.

According to the above configuration, when the link member 25 rotates in the direction of lifting the rear end portion 10r of the slope plate 10D, the link member 25 is unlikely to be caught at the rotational connection point Xa with the falling-off prevention member 101. Thereby, based on the rotation of the link member 25, the falling-off prevention member 101 held at the side end portion 100 of the slope plate 10D can be more smoothly lifted.

[Fifth embodiment]
A fifth embodiment of a vehicle slope device will be described below with reference to the drawings. For convenience of explanation, the same components as those in the first embodiment will be denoted by the same reference numerals, and the explanation thereof will be omitted.

As shown in FIGS. 33(a) and 33(b), the slope device 11H of this embodiment is different from the slope device 11 of the first embodiment in the configuration of its lift mechanism 70H.
To be more specific, in the slope device 11H of this embodiment, the drive shoe 22H includes a long, generally flat shoe body 200 extending in the direction in which the guide rail 20H thereof extends. The drive shoe 22H of this embodiment uses the shoe body 200 as an engaging part 22b for the drive guide part 38H provided on the guide rail 20H in the extending direction of the guide rail 20H, that is, the expansion and storage of the slope plate 10. It is configured to move in the direction.

Further, the drive shoe 22H of this embodiment includes a shaft-shaped portion 22a at the tip end 200f of the shoe body 200, which is rotatably connected to the link member 25H. The slope device 11H of this embodiment also has a configuration in which the shaft-shaped portion 22a is used as a support shaft, and a second connection point X2 of the link member 25H to the drive shoe 22H is formed.

Furthermore, in the slope device 11H of this embodiment, the driven shoe 40H also has a long, generally rod-shaped shoe body 201 extending in the direction in which the guide rail 20H extends. Further, the driven shoe 40H of this embodiment has a third connection point X3 with the link member 25H by being inserted into the elongated hole 43 provided in the link member 25H at the tip end 201f of the shoe body 201. A shaft-shaped portion 40a is provided. The driven shoe 40H of this embodiment is also configured to move in the extending direction of the guide rail 20H, with the shoe body 201 serving as an engaging portion 40b of the driven shoe 40H with respect to a driven guide portion 45H provided on the guide rail 20H. It has become.

Further, the driven shoe 40H of this embodiment includes a fitting member 202 fitted to the outer periphery of the shoe body 201 having a substantially square rod-like outer shape. Specifically, in the driven shoe 40H of this embodiment, the fitting member 202 has an approximately square cylindrical outer shape. Furthermore, this fitting member 202 is provided at a substantially intermediate position in the longitudinal direction of the shoe body 201. The slope device 11H of this embodiment moves toward the front end 20f side of the guide rail 20H by abutting the fitting member 202 against the stopper portion 64H provided at the front end 20f of the guide rail 20H. The configuration is such that movement of the driven shoe 40H is restricted.

In the slope device 11H of this embodiment, the stopper portion 64H has a substantially rectangular cylindrical shape through which the shoe body 201 of the driven shoe 40H moving toward the front end 20f of the guide rail 20H can be inserted. . The slope device 11H is thus configured such that the fitting member 202 provided on the shoe body 201 of the driven shoe 40H comes into contact with the axial end surface of the stopper portion 64H.

That is, in the slope device 11H of the present embodiment, the shaft-shaped portion 40a of the driven shoe 40H forming the third connection point X3 of the link member 25H is located in front of the front end portion 20f of the guide rail 20H (left side in FIG. 33). In this state, the slope plate 10 is unfolded at the lower end of the door opening 3. Furthermore, in the slope device 11H of this embodiment, at this time, the shaft-shaped portion 22a of the drive shoe 22H that forms the second connection point X2 of the link member 25H also moves forward than the front end portion 20f of the guide rail 20H. The situation is as follows. Also in the slope device 11H of this embodiment, the rear end 10r of the slope plate 10 is lifted upward by the rotation of the link member 25H without interfering with the front end 20f of the guide rail 20H. A lift mechanism 70H is formed that can perform the following operations.

Furthermore, in the slope device 11H of this embodiment, when the fitting member 202 of the driven shoe 40H is in contact with the stopper portion 64H, the guide rail 20H is engaged with the shoe body 201 of the driven shoe 40H. It includes an engagement member 210 that restricts movement of the driven shoe 40H toward the rear end portion 20r. In the slope device 11H of this embodiment, when the slope plate 10 is unfolded, the position of the shaft-shaped portion 40a inserted into the elongated hole 43 of the link member 25H, that is, the position of this link member Regarding the rotation fulcrum Px of 25H, a position holding mechanism 220 is formed to hold the formation position Z in the extending direction of the guide rail 20H.

Specifically, as shown in FIGS. 34 to 37, the slope device 11H of this embodiment is rotatably supported on the guide rail 20H in a state where it extends in the extending direction of the guide rail 20H. A lever member 221 is provided. In the slope device 11H of this embodiment, the shoe body 200 of the drive shoe 22H has a cam surface 222 that slides into contact with the lever member 221 as the shoe body 200 moves near the front end 20f of the guide rail 20H. is provided. Furthermore, the lever member 221 of this embodiment is pressed by this cam surface 222 and rotated, thereby engaging with the shoe body 201 of the driven shoe 40H. The slope device 11H of this embodiment is thus configured such that the lever member 221 functions as the engagement member 210 that constitutes the position holding mechanism 220.

More specifically, in the guide rail 20H of this embodiment, the drive guide portion 38H with which the shoe body 200 of the drive shoe 22H engages, and the driven guide portion 45H with which the shoe body 201 of the driven shoe 40H engages. They are arranged vertically. Furthermore, this guide rail 20H has a housing recess 223 that opens to both the drive guide portion 38H and the driven guide portion 45H. The lever member 221 of this embodiment is accommodated in the accommodation recess 223 in a state extending in the extending direction of the guide rail 20H.

Specifically, the lever member 221 of this embodiment has a rotation shaft 224 at its base end 221b. Further, this lever member 221 is accommodated in the housing recess 223 with its tip 221a extending toward the front end 20f of the guide rail 20H due to the pivoting shaft 224 being supported. There is. Furthermore, this lever member 221 has a sliding protrusion 225 that protrudes downward from its tip 221a. The slope device 11H of the present embodiment is thus configured such that the lever member 221 disposed within the housing recess 223 slides against the shoe body 200 of the drive shoe 22H that moves below the lever member 221.

More specifically, the drive shoe 22H of this embodiment has an upper protrusion 226 provided at the rear end 200r of the shoe body 200. The slope device 11H of this embodiment is configured such that the upper surface 226s of the upper protrusion 226 is used as a cam surface 222, and the lever member 221 slides into contact with the drive shoe 22H.

That is, in the slope device 11H of this embodiment, when the slope plate 10 is expanded below the door opening 3, the lever member is moved against the cam surface 222 of the drive shoe 22H that moves in the extending direction of the guide rail 20H. The sliding contact protrusion 225 of 221 is configured to come into sliding contact. Also, at this time, the lever member 221 rotates in such a way that the sliding protrusion 225 that is in sliding contact with the cam surface 222 is pushed upward. Further, due to this rotation, the tip end portion 221a of the lever member 221 projects into the driven guide portion 45H located above. The slope device 11H of this embodiment is thus configured such that the tip end 221a of the lever member 221 engages with the driven shoe 40H.

Specifically, the driven shoe 40H of this embodiment has a fitting member 227 provided at the rear end 201r of the shoe body 201. In the driven shoe 40H of the present embodiment, the fitting member 227 has a substantially rectangular cylindrical shape similar to the fitting member 227 provided at an intermediate position in the longitudinal direction of the shoe body 201. Furthermore, in the slope device 11H of the present embodiment, the tip end 221a of the lever member 221 rotated while being pushed up by the cam surface 222 of the drive shoe 22H is pushed up by the driven shoe 40H provided with the fitting member 227. It engages with the shoe body 201 from the rear end 20r side of the guide rail 20H. The slope device 11H of this embodiment is thus configured to restrict movement of the driven shoe 40H toward the rear end 20r of the guide rail 20H.

That is, as shown in FIGS. 38(a), 39(b), and 39(a) and 39(b), also in the slope device 11H of this embodiment, the front end portion 20f side of the guide rail 20H is brought into contact with the stopper portion 64H. While movement of the driven shoe 40H toward the guide rail 20H is restricted, movement of the drive shoe 22H along the extending direction of the guide rail 20H is allowed. At this time, as the drive shoe 22H moves, the shaft portion 40a of the driven shoe 40H forming the third connection point X3 in the extending direction of the guide rail 20H and the axis of the drive shoe 22H forming the second connection point X2. The link member 25H rotates by changing the distance d from the shaped portion 22a. Also in the slope device 11H of this embodiment, the rear end 10r of the slope plate 10 is moved upward based on the driving force of the drive shoe 22H that moves toward the front end 20f of the guide rail 20H. A lift mechanism 70H is formed that can be lifted up.

Furthermore, in the slope device 11H of this embodiment, when the driven shoe 40H is in contact with the stopper portion 64H, the lever member 221 serving as the engagement member 210 provided on the guide rail 20H is brought into contact with the driven shoe 40H. By engaging, movement of the driven shoe 40H toward the rear end 20r of the guide rail 20H is restricted. Therefore, even when the drive shoe 22H moves toward the rear end 20r of the guide rail 20H, the driven shoe 40H maintains its movement position along the extending direction of the guide rail 20H. As a result, the rotation fulcrum Px of the link member 25H formed by the shaft-shaped portion 40a of the driven shoe 40H is also maintained at the formation position Z in the extending direction of the guide rail 20H.

In other words, in the slope device 11H of this embodiment, even when the drive shoe 22H moves toward the rear end 20r side of the guide rail 20H while the slope plate 10 is expanded below the door opening 3, The link member 25H rotates about the shaft-shaped portion 40a of the driven shoe 40H inserted into the elongated hole 43 as a rotation fulcrum Px. The lift mechanism 70H of this embodiment is thus able to pull down the rear end 10r of the slope plate 10 that has been lifted upward.

That is, in the lift mechanism 70H of this embodiment, the position holding mechanism 220 holds the formation position Z of the rotation fulcrum Px, so that the movement of the drive shoe 22H along the extending direction of the guide rail 20H is more directly controlled. It is possible to convert this into a rotation of the link member 25H. The slope device 11H of the present embodiment thereby more smoothly lifts the rear end 10r of the slope plate 10 based on the movement of the drive shoe 22H toward the front end 20f of the guide rail 20H, and then The rear end 10r of the slope plate 10 can be pulled down based on the movement of the drive shoe 22H toward the end 20r.

In particular, when switching to the pull-down operation, the weight of the upwardly lifted slope plate 10 causes a force to move the driven shoe 40H, which forms the pivot point Px of the link member 25H, in the direction in which the guide rail 20H extends. occurs. As a result, when the link member 25H is out of synchronization with the drive shoe 22H, that is, when the link member 25H rotates without changing the position of the drive shoe 22H, the slope plate connected to the link member 25H There is a possibility that the rear end portion 10r of the vehicle 10 descends steeply.

However, in the slope device 11H of the present embodiment, the stopper part 64H restricts the movement of the driven shoe 40H toward the front end 20f of the guide rail 20H by its contact, and the front end 20f of the guide rail 20H by its engagement. A position holding mechanism 220 is formed by an engaging member 210 that restricts the movement of the driven shoe 40H toward the side. Therefore, regardless of the moving direction of the drive shoe 22H, the position Z at which the pivot point Px is formed by the shaft-shaped portion 40a of the driven shoe 40H is maintained. The slope device 11H of this embodiment thereby maintains synchronization between the drive shoe 22H that moves in the extending direction of the guide rail 20H and the link member 25H that rotates in conjunction with the drive shoe 22H. This makes it possible to smoothly switch to the lowering operation.

Further, in the slope device 11H of the present embodiment, the drive shoe 22H moves toward the rear end 20r side of the guide rail 20H following the pulling down operation of the slope plate 10, so that the drive shoe 22H moves toward the rear end 20r side of the guide rail 20H. The cam surface 222 provided on the shoe body 200 comes off from the sliding protrusion 225 provided on the tip 221a of the lever member 221. Further, as a result of the rotation of the lever member 221, the tip end 221a of the lever member 221 is provided with the shoe body 201 of the driven shoe 40H, specifically, the fitting member 227 that becomes the engaging portion thereof. It is detached from the rear end portion 201r of the shoe body 201. In the slope device 11H of the present embodiment, the link member 25H and the driven shoe 40H move together with the drive shoe 22H, so that the slope plate 10 connected to the link member 25H is placed in a substantially horizontal position. It is configured to move toward the rear end portion 20r of the guide rail 20H, which is the storage direction, while maintaining its posture.

As shown in FIGS. 36 and 37, in the slope device 11H of the present embodiment, the lever member 221 has a tip 221a having a sliding protrusion 225 projecting downward and has a substantially T-shaped cross-sectional shape. is doing. Based on its cross-sectional shape, the lever member 221 of this embodiment can be accommodated even after the shoe body 200 of the drive shoe 22H moves from below the lever member 221 toward the rear end 20r of the guide rail 20H. By engaging with the bottom 223b of the recess 223, the tip 221a is configured not to fall into the drive guide 38H.

Further, the drive shoe 22H of the present embodiment includes a sub-shoe 230 that has the same elongated and generally flat outer shape as the shoe body 200 and moves along the extending direction of the guide rail 20H. Furthermore, the drive shoe 22H of this embodiment supports both ends of the shaft-shaped portion 22a that constitutes the second connection point X2 of the link member 25H to the drive shoe 22H by the shoe main body 200 and the sub-shoe 230. The slope device 11H of this embodiment is thus able to more stably support the slope plate 10 via the link member 25H connected to the shaft-shaped portion 22a.

Next, the effects of this embodiment will be explained.
(1) The lift mechanism 70H determines the position of the shaft portion 40a of the driven shoe 40H, which forms the pivot point Px of the link member 25H in the extending direction of the guide rail 20H, in the expanded state of the slope plate 10. A position holding mechanism 220 that holds the formation position Z of the rotation fulcrum Px is provided.

According to the above configuration, the movement of the drive shoe 22H along the extending direction of the guide rail 20H can be more directly converted into rotation of the link member 25H. As a result, based on the movement of the drive shoe 22H toward the front end 20f of the guide rail 20H, the rear end 10r of the slope plate 10 can be lifted up and moved toward the rear end 20r of the guide rail 20H. Based on the movement of the drive shoe 22H toward the rear end 10r of the slope plate 10, which has been lifted upward, can be pulled down.

In other words, by maintaining the formation position Z of the rotation fulcrum Px, even if the moving direction of the drive shoe 22H is reversed, the drive shoe 22H that moves in the extending direction of the guide rail 20H and the drive shoe 22H It is possible to maintain synchronization with the link member 25H that rotates in conjunction with the link member 25H. Thereby, it is possible to smoothly switch between the lifting operation and the lowering operation.

(2) The slope device 11H includes a stopper portion 64H that restricts the movement of the driven shoe 40H toward the front end 20f of the guide rail 20H by coming into contact with the driven shoe 40H when the slope plate 10 is unfolded. . The slope device 11H also includes an engagement member 210 that restricts movement of the driven shoe 40H toward the rear end 20r of the guide rail 20H by engaging the driven shoe 40H with the slope plate 10 expanded. Equipped with. The stopper portion 64H and the engagement member 210 form a position holding mechanism 220.

According to the above structure, the position holding mechanism 220 is formed which can hold the formation position Z of the rotation fulcrum Px by the shaft-shaped portion 40a of the driven shoe 40H, regardless of the moving direction of the drive shoe 22H, with a simple structure. can do.

(3) By slidingly contacting the cam surface 222 provided on the drive shoe 22H while being supported by the guide rail 20H, the engagement member 210 allows the drive shoe 22H to move along the extending direction of the guide rail 20H. Based on this, the driven shoe 40H is engaged and disengaged.

According to the above configuration, in conjunction with the movement of the link member 25H that lifts or lowers the rear end portion 10r of the slope plate 10 by the movement of the driving shoe 22H along the extending direction of the guide rail 20H, the driven shoe 40H The engagement member 210 can be engaged and disengaged. This makes it possible to restrict the movement of the driven shoe 40H toward the rear end 20r of the guide rail 20H and release this restriction at appropriate timing with a simple configuration.

Note that each of the above embodiments can be modified and implemented as follows. The above embodiment and the following modification examples can be implemented in combination with each other within a technically consistent range.

- In the first embodiment described above, the third connection point X3 of the link member 25 to the driven shoe 40 is formed by inserting the shaft-shaped portion 40a of the driven shoe 40 into the elongated hole 43 provided in the link member 25. And so. However, the present invention is not limited to this, and the third connection point X3 may be formed by inserting a shaft-shaped portion provided on the link member 25 side into a long hole formed on the driven shoe 40 side. .

- In each of the above embodiments, the drive cable 51 is configured as a spur-tooth rack belt 60, but the shape of the drive cable 51 and the drive format by the actuator 52 may be changed arbitrarily.

- Also, as seen in the prior art, the drive shoe 22 is connected to the guide rail based on the meshing relationship (thread pair) between the screw shaft rotated by a motor drive and the nut member screwed into this screw shaft. It may be configured to move in the stretching direction of 20. Based on the biasing force of a driving means other than a motor drive, for example, an elastic member (compression spring, etc.), the driving shoe 22 is moved in the direction of expansion of the slope plate 10, that is, from the rear end 20r side of the guide rail 20 to the front end. A configuration in which it moves toward the portion 20f is also not excluded.

- Furthermore, regarding a slope device that does not have the posture holding mechanism 50 (50B) and lift mechanism 70 (70B, 70C) like the slope device 11 (11B, 11C) of each of the above embodiments when expanding and storing the slope plate 10 , a configuration may be applied in which the drive shoe 22 connected to the slope plate 10 is driven via the drive cable 51. In this case as well, it is preferable to adopt a configuration including a sliding path 58 extending along the extending direction of the guide rail 20 and an actuator 52 that slides the drive cable 51 along this sliding path 58.

By adopting such a configuration, it is possible to stably move the slope plate 10 together with the drive shoe 22 in the extending direction of the guide rail 20 with a simple configuration. As a result, the device can be downsized by taking advantage of its simple configuration.

- In the second embodiment, if the third connection point X3 to the driven shoe 40B functions as the rotation fulcrum Px of the link member 25, the relative rotation between the link member 25B and the driven shoe 40B does not necessarily occur. It does not have to be a possible configuration. That is, the link member 25B may be configured to rotate integrally with the driven shoe 40B using the driven shoe 40B as a rotation fulcrum Px while the driven shoe 40B is engaged with the driven guide portion 45B. . In the third embodiment, the driven shoe 40C may not rotate relative to either the link member 25C or the driven guide portion 45C.

- Furthermore, the configuration of the posture holding mechanism 50 may be arbitrarily changed as long as it is possible to maintain the posture of the link member 25 based on the engagement state of the link member 25 with respect to the guide rail 20. For example, the guide rails 20B and 20C in the second and third embodiments may be configured without the top plate portion 46.

- In the first embodiment, when the slope plate 10 is expanded to the door opening 3, the link member 25 moves in conjunction with the drive shoe 22 to the rear end 20r side of the guide rail 20. By moving toward the front end 46f of the top plate portion 46, the link member 25 is configured to come into contact with the front end 46f of the top plate portion 46. As a result, the front end 46f of the top plate portion 46 functions as a return fulcrum forming portion 77 that forms a second rotation fulcrum Py on the link member 25. However, the present invention is not limited to this, and the return fulcrum forming portion 77 may be formed by a structure other than the front end 46f of the top plate portion 46.

- Also, for example, due to the weight of the slope plate 10, a force is applied to the link member 25 in the direction of pulling down the rear end portion 10r of the slope plate 10. As a result, the link member 25 may also be configured to rotate about the same rotational fulcrum Px in the operation of pulling down the rear end portion 10r of the slope plate 10 as in the lifting operation.

- In each of the above embodiments, due to the rotation of the link member 25, the first connection point X1 to the rear end 10r of the slope plate 10 moves toward the rear end 20r of the guide rail 20 with respect to the rotation fulcrum Px. It was decided to be structured as follows. However, the present invention is not limited thereto. For example, the link member 25 may be rotated to a position where the rear end 10r of the slope plate 10 is lifted up the most. The amount of rotation of the link member 25 based on the movement may be changed arbitrarily.

- Also, in the third embodiment, before the second connection point X2 moves beyond the rotation fulcrum Px of the link member 25C to the front end 20f side of the guide rail 20, the first connection point X1 It was decided to move toward the rear end portion 20r of the guide rail 20 with respect to the pivot point Px. However, the present invention is not limited to this, and similarly to the first and second embodiments, when the second connection point , the first connection point X1 may be configured to move closer to the rear end portion 20r of the guide rail 20 than the pivot point Px. Thereby, the rear end 10r of the slope plate 10 can be stably brought close to the edge 71e of the vehicle floor 71 facing the door opening 3. Regarding the lift mechanisms 70 and 70B in the first and second embodiments, for example, by changing the shape of the link member 25, the second connecting point Before moving toward the front end 20f of the guide rail 20, the first connection point X1 may be moved toward the rear end 20r of the guide rail 20 with respect to its pivot point Px.

- In each of the above embodiments, the drive shoe 22 is moved from the rear end 20r side of the guide rail 20 with the rotation fulcrum Px of the link member 25 formed between the first connection point X1 and the second connection point X2. By moving toward the front end 20f, the link member 25 rotates. In the fourth embodiment, when the link member 25D rotates in the direction in which the rear end 10r of the slope plate 10D is lifted, the falling-off prevention member 101 held at the side end 100 of the slope plate 10D is It was decided to lift the slope plate 10D above. However, the present invention is not limited to this, and in the lift mechanism 70D that lifts up the slope plate 10D provided with such a fall prevention member 101, the structure for rotating the link member 25D may be arbitrarily changed.

- In the fourth embodiment, each fall prevention member 101 is held on the side of the slope plate 10D at the side end portions 100 on both sides of the slope plate 10D in the width direction.
However, the present invention is not limited to this, and as in the slope device 11E shown in FIGS. 29 and 30(a) and 30(b), a slope plate 10E is provided at a side end 100E of the slope plate 10E in a form extending in the longitudinal direction. A groove-shaped accommodating recess 130 that opens on the upper surface 10a is provided. The drop-off prevention member 101 accommodated in the accommodation recess 130 may be lifted toward the upper surface 10a of the slope plate 10E. Thereby, it is possible to protect the falling-off prevention member 101 and to improve the design.

-Alternatively, as shown in FIGS. 31(a) to (c), a configuration may be provided in which a biasing member 140 is provided that biases the drop-off prevention member 101 in the direction in which the drop-off prevention member 101 is lifted. For example, in the example shown in FIG. 31, a torsion coil spring 141 is fitted to the shaft member 111 that forms the plate-side connection point Xb of the second link member 105F to the slope plate 10F. Further, the slope plate 10F is formed with an engagement portion 142 for the first end 141a of the torsion coil spring 141, and the second link member 105F is formed with an engagement portion 142 for the second end 141b of the torsion coil spring 141. A portion 143 is formed. In the example shown in FIG. 31, the second link member 105F is rotated and biased clockwise in the figure based on the elastic force of the torsion coil spring 141. The configuration is such that the fall prevention member 101 is biased in a direction in which the fall prevention member 101 is lifted up.

According to the above configuration, the fall prevention member 101 extending in the longitudinal direction of the slope plate 10F can be lifted upward more smoothly. Note that the number, arrangement, and type of biasing members 140 may be changed as desired. For example, a spring member other than the torsion coil spring 141, such as a compression coil spring or a plate spring, or another elastic member may be used for the biasing member 140. Furthermore, the biasing member 140 may be configured to directly press the fall prevention member 101 upward. Further, the configuration may be such that the biasing member 140 presses the fall prevention member 101 upward via a pressing member other than the second link member 105F.

- In the fourth embodiment, between the slope plate 10D and each drop-off prevention member 101, there are a plurality of first connection points closer to the front end 10f of the slope plate 10 than the first connection point X1 to the link member 25D. Two link members 105 are interposed. However, the present invention is not limited to this, and the number and arrangement of such second link members 105 may be changed arbitrarily. Further, the second link member 105 may have a configuration in which the parallel link 110 is not formed with the first end portion 25a of each link member 25D.

・Also, like the slope device 11G shown in FIG. 32, the links forming the lift mechanism 70G are arranged such that each fall prevention member 101G is in a forward tilted posture without providing the second link member 105 as described above. A configuration may be adopted in which the rear end portion 101r of each drop-off prevention member 101G is lifted by rotation of the member 25G. Thereby, the movable side wall portion 120 can be expanded above the slope plate 10G with a simple configuration.

In this case, connection points between the slope plate 10G and each fall prevention member 101G may be formed by, for example, a long hole and a shaft member that engages with the long hole. In a configuration in which the slope plate 10G is provided with an accommodation recess 130 as in the above-mentioned other example, the front end of the falling-off prevention member 101G may slide on the bottom surface 130b of the accommodation recess 130.

- In the fourth embodiment, the falling-off prevention member 101 has a long, substantially flat outer shape and extends in the longitudinal direction of the slope plate 10D. However, the shape of the fall prevention member 101 may be arbitrarily changed as long as the side wall portion 120 for fall prevention can be formed by being lifted toward the upper surface 10a of the slope plate 10D. The length of the falling-off preventing member 101 forming the falling-off preventing side wall portion 120 and the amount of upward protrusion of the slope plate 10D may also be changed arbitrarily.

-Also, in the fourth embodiment, the vertical width W1 of the fall prevention member 101 is set to be approximately equal to the thickness W0 of the slope plate 10D, but the vertical width W1 may be changed arbitrarily. good. Then, in a state in which the fall prevention member 101 moves in the deployment and storage direction in a substantially horizontal position together with the slope plate 10D, that is, in a state before the slope plate 10D is lifted, a part of the fall prevention member 101 is moved to the slope plate 10D. It may be configured such that it protrudes above. In addition, when considering mountability on the vehicle 1, it is preferable that the amount of protrusion of the drop-off prevention member 101 above the slope plate 10D before lifting is smaller.

- In the fifth embodiment, the lever member 221 rotatably supported on the guide rail 20H is rotated in such a manner that it is pushed up by the cam surface 222 provided on the shoe body 200 of the drive shoe 22H. This engages the rear end portion 201r of the shoe body 201. As a result, a position holding mechanism 220 is formed using the lever member 221 as the engagement member 210 to restrict movement of the driven shoe 40H toward the rear end 20r of the guide rail 20H.

However, the present invention is not limited to this, and the direction in which the cam surface 222 presses the lever member 221 may be arbitrarily changed. For example, the lever member 221 pressed by the cam surface 222 may engage the driven shoe 40H from the side. Furthermore, by providing the engaging member 210 that is slidably supported on the guide rail 20H, the engaging member 210 is pressed against the cam surface 222 and engaged with the driven shoe 40H. You can. If the movement of the driven shoe 40H toward the rear end 20r of the guide rail 20H can be restricted by this engagement, the engagement position of the engagement member 210 with respect to the drive shoe 22H may also be changed arbitrarily. Good too.

- Also, for example, the engaging member 210 of the position holding mechanism 220 may be provided at a location other than the guide rail 20H, such as a bracket. Furthermore, for example, by using an electric driving means such as a solenoid, the engaging member 210 can be engaged with the driven shoe 40H by a driving method other than sliding contact with the cam surface 222 provided on the driving shoe 22H as described above. It is also possible to have a configuration in which they are matched. The engagement member 210 that engages with the driven shoe 40 restricts both the movement of the driven shoe 40 toward the front end 20f of the guide rail 20H and the movement of the driven shoe 40 toward the rear end 20r. The position holding mechanism 220 may be configured as shown in FIG.

- In the fifth embodiment, the movement of the driven shoe 40H along the extending direction of the guide rail 20H is restricted by the stopper portion 64H provided on the guide rail 20H and the lever member 221 as the engagement member 210. , the position holding mechanism 220 is formed. However, the present invention is not limited to this, and the position holding mechanism 220 may be formed by, for example, a component of the rotation fulcrum Px provided integrally with the link member 25 rotatably engaging with the guide rail 20H. You can. This allows the configuration of applicable lift mechanisms to be expanded.

Next, technical ideas that can be understood from the above embodiment and modified examples will be described.
(a) A slope for a vehicle, wherein the posture holding mechanism holds the link member in a posture in which the first connection point is located above the second connection point and in the direction of expansion of the slope plate. Device.

According to the above configuration, following the operation of deploying the slope plate to the door opening, the first connecting point and the second connecting point are immediately connected based on the movement of the drive shoe toward the front end of the guide rail. By forming a rotation fulcrum therebetween, the link member can be rotated in a direction that lifts up the rear end of the slope plate.

(b) The guide rail includes a drive guide portion that engages with the drive shoe to guide the drive shoe in the extending direction of the guide rail, and a drive guide portion that engages with the driven shoe to guide the driven shoe in the guide rail. A slope device for a vehicle, comprising: a driven guide portion that guides the rail in an extending direction.

According to the above configuration, the driving shoe and the driven shoe can be stably moved in the extending direction of the guide rail. By engaging the link member with the guide rail via these drive shoes and driven shoes, the posture of the link member can be stabilized.

(c) The guide rail includes a top plate portion extending in the extending direction of the guide rail above the drive guide portion, and the posture holding mechanism includes a top plate portion of the link member provided with the first connection point. A slope device for a vehicle, characterized in that the posture of the link member is maintained in a state where an end portion is in sliding contact with a lower surface of the top plate portion.

That is, by the first end of the link member slidingly contacting the lower surface of the top plate, rotation of the link member in the direction in which the rear end of the slope plate connected to the first end is lifted can be restricted. can. Thereby, the posture of the link member can be maintained with a simple configuration.

(d) The guide rail is arranged such that when the drive shoe moves to the front end of the guide rail, the first end of the link member is connected to the top plate in a state where the drive shoe engages with the drive guide part. A slope device for a vehicle, characterized in that it is configured to be detached from the section.

According to the above configuration, while suppressing the length of the front end of the guide rail protruding from the housing part such as a so-called storage box provided in the vehicle body, the link member can be enlarged when the slope plate is expanded to the door opening. It can be rotated. This allows the slope plate to be placed closer to the vehicle floor.

(E) When the slope plate is unfolded, the link member moves toward the rear end of the guide rail in conjunction with the drive shoe, so that the top plate portion A slope device for a vehicle, characterized in that the link member is configured to abut against a front end.

According to the above configuration, the front end of the top plate portion functions as a return fulcrum forming portion that forms a second rotation fulcrum in the link member. Further, as the link member rotates in conjunction with the drive shoe and moves toward the rear end of the guide rail, the contact position of the link member with respect to the front end of the top plate portion moves toward the first end. As a result, the first end of the link member comes into sliding contact with the lower surface of the top plate, so that the posture holding mechanism based on the engagement state of the link member with each guide rail functions again. . Therefore, according to the above configuration, it is possible to more smoothly move the slope plate in the storage direction following the pulling down operation of the rear end portion.

(F) A vehicle characterized by comprising a slope support portion having a rotating member that abuts the lower surface of the slope plate in a state in which the slope plate moves in the extending direction of the guide rail in conjunction with the drive shoe. slope device. Thereby, the slope plate can be moved in the deployment and storage directions in a stable posture.

(g) The second connecting point is configured to move beyond the pivot point and toward the front end of the guide rail based on the movement of the driven shoe toward the front end of the guide rail. A vehicle slope device characterized by. Thereby, it is possible to stably move the first connecting point of the link member to the rear end of the slope plate toward the rear end of the guide rail with respect to its pivot point.

(h) The attitude holding mechanism maintains the attitude of the link member based on the engagement state of the link member with the guide rail via the drive shoe and the driven shoe. slope device. Thereby, with a simple configuration, the posture of the link member can be stably maintained, and the slope plate can be moved integrally with the link member in the deployment and storage directions.

(i) A slope plate that is deployed at the lower end of the door opening, a guide rail that extends in the direction of expansion and retraction of the slope plate, and a drive shoe that moves in the direction in which the guide rail extends while being connected to the slope plate. A vehicle ramp comprising: a drive cable connected to the drive shoe; a slideway extending along the extending direction of the guide rail; and an actuator that slides the drive cable along the slideway. Device.

According to the above configuration, the slope plate can be stably moved together with the drive shoe in the extending direction of the guide rail with a simple configuration. By taking advantage of the simple configuration and reducing the size, it is possible to improve the ease of mounting on a vehicle.

DESCRIPTION OF SYMBOLS 1... Vehicle, 2... Vehicle body, 3... Door opening, 10... Slope plate, 10f... Front end, 10r... Rear end, 10s... Lower surface, 11... Slope device, 12... Storage box, 12a... Opening, 20 (20R, 20L)...Guide rail, 20f...Front end, 20r...Rear end, 22 (22R, 22L)...Drive shoe, 22a...Shaft portion, 22b...Engaging portion, 25 (25R, 25L)...Link Member, 25a...first end, 25b...second end, 31, 32...through hole, 35...coupling member, 35a...shaft-like part, 35b...fixing part, 37...link guide part, 37b...bottom surface, 37s ...Side wall surface, 38... Drive guide part, 38a... Inner drive guide part, 38b... Outer drive guide part, 40... Follower shoe, 40a... Shaft-shaped part, 40b... Engagement part, 43... Elongated hole, 43a, 43b... End, 45...Followed guide part, 46...Top plate part, 46f...Front end, 46s...Bottom surface, 48...Slope support part, 48a...Roller, 50...Posture holding mechanism, 51 (51R, 51L)...Drive cable, 51a ...Connection end, 51b...Free end, 52...Actuator, 52m...Motor, 53...Bracket, 55 (55R, 55L), 56 (56R, 56L)...Casing pipe, 58...Sliding path, 60...Rack belt, 61 ... Pinion gear, 61x... Rotating shaft, 64... Stopper part, 65... End block, 66... Bottom plate part, 66f... Front end, 70... Lift mechanism, 71... Vehicle floor, 71e... Edge, 72... Engaging part, 74... Rotation regulating part, 75...Flat surface, 77...Fully point forming part, X1...First connection point, X2...Second connection point, X3...Third connection point, Px...Rotation fulcrum, d...Interval, Py...First connection point 2 rotation fulcrum, 11B... slope device, 20B... guide rail, 25B... link member, 40B... driven shoe, 45B... driven guide part, 50B... attitude holding mechanism, 70B... lift mechanism, 80... curved part, 11C... Slope device, 20C... Guide rail, 25C... Link member, 25x... Contact portion, 40C... Follower shoe, 45C... Follower guide portion, 70C... Lift mechanism, 81... Upper opening, 82... Contact member, 10D, 10E , 10F, 10G...Slope plate, 10a...Top surface, 11D, 11E, 11G...Slope device, 25D, 25G...Link member, 70D, 70G...Lift mechanism, 100, 100E...Side end, 101, 101G... Falling prevention member , 101r...rear end, 105, 105F...second link member, 110...parallel link, 111-113...shaft member, 120...side wall, 130...housing recess, 130b...bottom surface, 140...biasing member, 141 ...Coil spring, 141a...First end, 141b...Second end, 142, 143...Engagement part, 11H...Slope device, 20H...Guide rail, 22H...Drive shoe, 25H...Link member, 38H...Drive guide part , 40H...driven shoe, 45H...driven guide part, 64H...stopper part, 70H...lift mechanism, 200...shoe body, 200f...tip part, 200r...rear end part, 201...shoe body, 201f...tip part, 201r... Rear end part, 202... Fitting member, 210... Engaging member, 220... Position holding mechanism, 221... Lever member, 221a... Tip part, 221b... Base end part, 222... Cam surface, 223... Accommodation recess, 223b... Bottom, 224...Rotation shaft, 225...Sliding protrusion, 226...Upper protrusion, 226s...Top surface, 227...Fitting member, 230...Sub shoe, θ1, θ2...Inclination angle, H0, H1...Height, N1 , N2...Line segment, W0...Thickness, W1...Vertical width, Xa...Rotation connection point, Xb...Plate side connection point, Xc...Wall side connection point, Z...Formation position.

Claims (17)

A slope plate deployed at the lower end of the door opening,
a guide rail extending in the direction of expansion and storage of the slope plate;
a drive shoe that moves in the direction in which the guide rail extends;
a link member having a first connection point rotatably connected to the rear end of the slope plate and a second connection point rotatably connected to the drive shoe;
Based on the engagement state of the link member with the guide rail,
a posture holding mechanism configured to move the slope plate in an extending direction of the guide rail in conjunction with the drive shoe while maintaining the posture of the link member;
In a state in which the slope plate is expanded to the door opening by moving the rear end of the slope plate to the front end of the guide rail, there is a gap between the first connection point and the second connection point. The rotation fulcrum of the link member is formed, and the rotation fulcrum and the second connection point in the extending direction of the guide rail are formed based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side. a lift mechanism configured to rotate the link member and lift the rear end of the slope plate as the distance between the two changes;
a driven shoe that is connected to the link member at a position between the first connection point and the second connection point and moves together with the link member in the extending direction of the guide rail;
Equipped with
The lift mechanism is configured such that the link member rotates using a third connection point at which the driven shoe is connected to the link member as the rotation fulcrum,
The third connection point is formed by inserting a shaft-like part provided on the other side of the driven shoe and the link member into a long hole provided on one side of the driven shoe and the link member, and
The lift mechanism includes a stopper portion that restricts movement of the driven shoe toward the front end of the guide rail by coming into contact with the driven shoe when the slope plate is unfolded. Device. A slope plate deployed at the lower end of the door opening,
a guide rail extending in the direction of expansion and storage of the slope plate;
a drive shoe that moves in the direction in which the guide rail extends;
a link member having a first connection point rotatably connected to the rear end of the slope plate and a second connection point rotatably connected to the drive shoe;
Based on the engagement state of the link member with the guide rail,
a posture holding mechanism configured to move the slope plate in an extending direction of the guide rail in conjunction with the drive shoe while maintaining the posture of the link member;
In a state in which the slope plate is expanded to the door opening by moving the rear end of the slope plate to the front end of the guide rail, there is a gap between the first connection point and the second connection point. The rotation fulcrum of the link member is formed, and the rotation fulcrum and the second connection point in the extending direction of the guide rail are formed based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side. a lift mechanism configured to rotate the link member and lift the rear end of the slope plate as the distance between the two changes;
a driven shoe that is connected to the link member at a position between the first connection point and the second connection point and moves together with the link member in the extending direction of the guide rail;
Equipped with
The lift mechanism is configured such that the link member rotates using a third connection point at which the driven shoe is connected to the link member as the rotation fulcrum,
The lift mechanism includes a position holding mechanism that holds the formation position of the rotation fulcrum in the extending direction of the guide rail when the slope plate is expanded;
The third connection point serving as the rotation fulcrum is formed by inserting a shaft-like part provided in the driven shoe into a long hole provided in the link member,
The position holding mechanism is
a stopper portion that restricts movement of the driven shoe toward the front end of the guide rail by coming into contact with the driven shoe when the slope plate is unfolded;
an engagement member that restricts movement of the driven shoe toward the rear end side of the guide rail by engaging with the driven shoe when the slope plate is expanded;
A vehicle slope device equipped with. The vehicle slope device according to claim 2 ,
The engagement member slides on a cam surface provided on the drive shoe while being supported by the guide rail, so that the engagement member engages the driven shoe based on the movement of the drive shoe along the extending direction of the guide rail. A vehicle slope device characterized by being able to engage and disengage. A slope plate deployed at the lower end of the door opening,
a guide rail extending in the direction of expansion and storage of the slope plate;
a drive shoe that moves in the direction in which the guide rail extends;
a link member having a first connection point rotatably connected to the rear end of the slope plate and a second connection point rotatably connected to the drive shoe;
Based on the engagement state of the link member with the guide rail,
a posture holding mechanism configured to move the slope plate in an extending direction of the guide rail in conjunction with the drive shoe while maintaining the posture of the link member;
In a state in which the slope plate is expanded to the door opening by moving the rear end of the slope plate to the front end of the guide rail, there is a gap between the first connection point and the second connection point. The rotation fulcrum of the link member is formed, and the rotation fulcrum and the second connection point in the extending direction of the guide rail are formed based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side. a lift mechanism configured to rotate the link member and lift the rear end of the slope plate as the distance between the two changes;
Equipped with
The lift mechanism is a vehicular slope device configured such that the first connection point moves toward the rear end of the guide rail with respect to the rotation fulcrum by rotation of the link member. A slope plate deployed at the lower end of the door opening,
a guide rail extending in the direction of expansion and storage of the slope plate;
a drive shoe that moves in the direction in which the guide rail extends;
a link member having a first connection point rotatably connected to the rear end of the slope plate and a second connection point rotatably connected to the drive shoe;
Based on the engagement state of the link member with the guide rail,
a posture holding mechanism configured to move the slope plate in an extending direction of the guide rail in conjunction with the drive shoe while maintaining the posture of the link member;
In a state in which the slope plate is expanded to the door opening by moving the rear end of the slope plate to the front end of the guide rail, there is a gap between the first connection point and the second connection point. The rotation fulcrum of the link member is formed, and the rotation fulcrum and the second connection point in the extending direction of the guide rail are formed based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side. a lift mechanism configured to rotate the link member and lift the rear end of the slope plate as the distance between the two changes;
Equipped with
At the second end of the link member where the second connection point is provided, when the rear end of the slope plate is lifted upward by rotation of the link member, A slope device for a vehicle , which includes a rotation restriction portion that restricts rotation of the link member by coming into contact with a bottom plate portion from above. A slope plate deployed at the lower end of the door opening,
a guide rail extending in the direction of expansion and storage of the slope plate;
a drive shoe that moves in the direction in which the guide rail extends;
a link member having a first connection point rotatably connected to the rear end of the slope plate and a second connection point rotatably connected to the drive shoe;
Based on the engagement state of the link member with the guide rail,
a posture holding mechanism configured to move the slope plate in an extending direction of the guide rail in conjunction with the drive shoe while maintaining the posture of the link member;
In a state in which the slope plate is expanded to the door opening by moving the rear end of the slope plate to the front end of the guide rail, there is a gap between the first connection point and the second connection point. The rotation fulcrum of the link member is formed, and the rotation fulcrum and the second connection point in the extending direction of the guide rail are formed based on the movement of the drive shoe from the rear end side of the guide rail toward the front end side. a lift mechanism configured to rotate the link member and lift the rear end of the slope plate as the distance between the two changes;
Equipped with
The slope plate has a rotational connection point with the link member at a position on the distal side of the first connection point at the first end of the link member where the first connection point with respect to the slope plate is provided. Equipped with a fall prevention member held at the side end of the
A vehicular slope device configured such that when the link member rotates in a direction in which a rear end portion of the slope plate is lifted, the falling-off prevention member is lifted toward the upper surface side of the slope plate. The vehicle slope device according to claim 6 ,
The rotational connection between the first connection point to the slope plate and the fall prevention member by being rotatably connected to the slope plate and rotatably connected to the fall prevention member. A slope device for a vehicle, comprising: a second link member forming a parallel link together with a first end of the link member having a point. The vehicle slope device according to claim 6 or 7 ,
A slope device for a vehicle, wherein the rotational connection point with the fall prevention member is located above the first connection point with the slope plate. In the vehicle slope device according to any one of claims 6 to 8 ,
A slope device for a vehicle, wherein the slope plate is provided with a recess for accommodating the drop-off prevention member that opens on the upper surface of the slope plate. In the vehicle slope device according to any one of claims 6 to 9 ,
A slope device for a vehicle, comprising: an urging member that urges the falling-off preventing member in a direction in which the falling-off preventing member is lifted up. In the vehicle slope device according to any one of claims 4 to 10 ,
a driven shoe that is connected to the link member at a position between the first connection point and the second connection point and moves integrally with the link member in the extending direction of the guide rail;
The lift mechanism is configured such that the link member rotates using a third connection point at which the driven shoe is connected to the link member as the rotation fulcrum;
A vehicle slope device featuring: The vehicle slope device according to claim 11 ,
The guide rail is provided with a driven guide portion that engages with the driven shoe and guides the driven shoe in the extending direction of the guide rail,
The lift mechanism includes a curved portion formed in the driven guide portion at the front end of the guide rail, the curved portion extending upward from the rear end side of the guide rail toward the front end side;
A vehicle slope device featuring: In the vehicle slope device according to any one of claims 4 to 10 ,
The lift mechanism is configured to contact the link member toward the front end of the guide rail when the slope plate is unfolded, thereby forming the rotation fulcrum at the contact portion of the link member. A vehicle slope device comprising: a member. In the vehicle slope device according to any one of claims 1 and 4 to 13 ,
In the lift mechanism, when the slope plate is unfolded, the link member moves toward the rear end side of the guide rail in conjunction with the drive shoe, thereby coming into contact with the link member and moving the link member toward the rear end of the guide rail. A slope device for a vehicle, characterized in that the link member is provided with a return fulcrum forming part that forms a second rotation fulcrum. In the vehicle slope device according to any one of claims 1 and 4 to 13 ,
The lift mechanism includes a position holding mechanism that holds the formation position of the rotation fulcrum in the extending direction of the guide rail when the slope plate is expanded;
A vehicle slope device featuring: In the vehicle slope device according to any one of claims 1 to 15 ,
The rear end of the slope plate is provided with an engaging portion that engages with an edge of the vehicle floor facing the door opening when lifted upward by rotation of the link member;
A vehicle slope device featuring: In the vehicle slope device according to any one of claims 1 to 16 ,
a drive cable connected to the drive shoe;
a sliding path extending along the extending direction of the guide rail;
an actuator that slides the drive cable along the sliding path;
A vehicle slope device comprising: