CN112744144A

CN112744144A - Slope device

Info

Publication number: CN112744144A
Application number: CN202010076950.8A
Authority: CN
Inventors: 川口聪; 上谷川晃文
Original assignee: Aisin Keikinzoku Co Ltd
Current assignee: Aisin Keikinzoku Co Ltd
Priority date: 2019-10-30
Filing date: 2020-01-23
Publication date: 2021-05-04

Abstract

The present application aims to provide a slope device which is light in weight and excellent in traveling performance of a wheelchair and the like. The slope device is used for forming a slope surface at a step part, and is characterized by comprising a slope component and a guide rail component, wherein the guide rail component is respectively connected with the two side ends of the slope component along the forming direction of the slope surface, a plurality of floor components are arranged in parallel through the slope component, and the adjacent floor components are mutually connected, so that the load applied to the slope surface is dispersed to the floor components.

Description

Slope device

Technical Field

The present invention relates to a slope device for a slope surface formed by being erected at a step portion between a vehicle floor and a road surface, a step portion of a doorway of a building, or the like.

Background

For example, patent document 1 discloses a slope device for forming a slope surface at a step portion in order to get a wheelchair on and off a vehicle, or to enable the wheelchair to travel at an entrance of a building.

However, the slope device disclosed in this publication is mainly manufactured using a plate material, and sometimes has a complicated structure due to increased deflection and unstable traveling when a wheelchair or the like goes up and down a slope surface, and increased weight to be able to receive a load of the wheelchair or the like.

Documents of the prior art

Patent document

Patent document 1: japanese laid-open patent publication No. 10-86739

Disclosure of Invention

Technical problem to be solved by the invention

The invention aims to provide a slope device which is light in weight and has excellent traveling performance of a wheelchair and the like.

Means for solving the technical problem

The slope device according to the present invention is a slope device for forming a slope surface at a step portion, and the slope device includes slope members and rail members connected to both side ends of the slope members in a direction in which the slope surface is formed, and a plurality of floor members are arranged in parallel by the slope members, and the adjacent floor members are connected to each other, whereby a load applied to the slope surface is dispersed to the plurality of floor members.

As an example, a ramp device according to the present invention is a ramp device in which a base plate is connected to a floor of a vehicle, and the base plate is extended out of a vehicle compartment so that a front end side thereof is grounded to a road surface or the like to form a ramp surface.

In this case, the ramp device may be stored by being placed upside down in the vehicle interior, and the ramp device may be stored by being turned to the floor side (laid flat) in the vehicle interior, thereby securing a trunk.

Further, as an example, there is a mode in which the slope device according to the present invention is portable and is used by being installed at an entrance of a building or at an entrance of a bus or the like.

In this case, if the slope member can be folded and divided into a plurality of pieces with the direction in which the slope surface is formed as an axis, the carrying is facilitated by the folding.

In the apparatus according to the present invention, the slope surface may be formed by a plurality of the slope members, and the adjacent slope members may be slidably connected to each other between one of the rail members and the other rail member.

Such a setting is useful, for example, when there is a limit to the storage height and length in the vehicle interior.

The ramp device according to the invention is characterized in that the floor for forming the ramp surface is formed by a plurality of floor elements.

As an example of such a mode, the following is given.

As an example, the floor members are coupled to each other in such a manner that one end portion is fitted to the other end portion.

In this case, one end portion has a fitting concave portion, and the other end portion has a fitting convex portion.

As an example, the floor members are connected to each other in such a manner that a stepped surface formed on one end portion and a stepped surface formed on the other end portion are directly or indirectly connected to each other so as to overlap each other.

In this case, the stepped surfaces overlap, but the stepped surfaces may have concave and convex surfaces that engage with each other.

The direct connection means that the step surface of one floor member and the step surface of the other floor member corresponding to the step surface in the opposite direction are overlapped so as to be in direct contact with each other, and the indirect connection means that the sandwiching member such as a rubber sheet is sandwiched between the one step surface and the other step surface.

Preferably, the stepped surface is a surface parallel to the slope surface.

In addition, as an example, the floor members are connected to each other by fitting a connecting block across a recess formed in one end and a recess formed in the other end.

In the present invention, for example, the end portion of the floor member and the rail member are connected to each other by inserting and connecting the end portion of the floor member into an insertion recess formed in the rail member.

In order to allow the plurality of slope members to extend and contract, the slidable coupling between the one rail member and the other rail member may be a coupling in which a sliding portion formed in the other rail member is slidably fitted in a sliding recess formed in the one rail member, and a sliding member may be disposed between the sliding recess and the sliding portion.

Further, in a case where the slope members are slidable and extendable with respect to each other, the slope members may include stopper units that regulate a sliding amount in a sliding extension direction.

In the present invention, the ramp device may be configured to be deployable from the floor of the vehicle toward the outside of the vehicle interior and may include an assist mechanism that assists the operation of accommodating the ramp device into the vehicle interior from the deployed state, and may further include a lock mechanism that locks the state of accommodating the ramp device into the vehicle interior.

Effects of the invention

In the slope device according to the present invention, the slope member is connected in parallel to the plurality of floor members, and both side end portions thereof are connected by the rail member, so that the weight applied to the slope surface is dispersed to the entire slope device.

This makes it possible to reduce the weight of the entire slope and to provide excellent stability in driving in a wheelchair or the like.

Drawings

Fig. 1 shows an example in which a slope device according to the present invention is mounted in a vehicle interior.

Fig. 2 shows an example in which the slope device is housed in a vehicle cabin.

Fig. 3 shows an example of connection between the floor member and the rail member. Fig. 3 (a) shows a cross-sectional view of the coupling portion, and fig. 3 (b) shows an exploded view.

Fig. 4 shows an example of a stepped coupling portion for sandwiching a sheet between floor members.

Fig. 5 shows an example in which the stepped portions of the floor members are directly overlapped.

Fig. 6 shows an example in which the nonslip member is provided to the connecting portion of the floor member.

Fig. 7 shows an example of a floor member of solid cross section.

Fig. 8 (a) to 8 (c) show an example in which the fitting piece is provided in the floor member.

Fig. 9 (a) and 9 (b) show examples of connection between floor members by the connection block.

Fig. 10 (a) to 10 (d) show examples of the deployment and storage of the ramp device.

Fig. 11 shows an example of the slide coupling structure of the rail member.

Fig. 12 shows an example of a ramp device consisting of two ramp elements. Fig. 12 (a) shows an example of connection to a vehicle, and fig. 12 (b) shows an example of a structure of a slope device.

Fig. 13 shows an example of the sliding structure of the slope member.

Fig. 14 shows another example of the sliding structure of the slope member.

Fig. 15 shows an example of a coupling structure between the floor member and the rail member.

Fig. 16 (a) and 16 (b) show an example of the structure of the stopper in the extending direction.

Fig. 17 (a) and 17 (b) show an example of the structure of the stopper in the housing direction.

Fig. 18 shows an example of the stopper when the slope member is housed upside down.

Fig. 19 shows an example in which the slope member is folded, fig. 19 (a) shows an overall view, and fig. 19 (b) shows a cross-sectional view of the folded portion.

Fig. 20 (a) and 20 (b) show an example in which an assist mechanism for assisting the accommodation of the slope device in the vehicle interior is provided.

Fig. 21 (a) and 21 (b) show an example in which a lock mechanism for locking a state in which the slope device is housed in the vehicle interior is provided.

Detailed Description

A configuration example of the ramp device 100 according to the present invention will be described with reference to the drawings.

Fig. 1 shows an example in which a plurality of slope members are slidably coupled in three stages.

The ramp device 100 is an example in which the hinge plate 14 provided on the base side has the first ramp member 10 rotatably coupled thereto, the second ramp member 20 can be slidably coupled to the first ramp member 10, and the third ramp member 30 can be slidably coupled to the second ramp member 20.

As will be described later, the first slope member 10 is a floor panel 11 having a slope surface formed by coupling a plurality of

floor members

11a, 11b, 11c, …, and has both ends in the left-right direction coupled to

rail members

12, 13 extending along the slope surface, respectively.

The second slope member 20 also forms a floor 21 by connecting a plurality of floor members, and both ends thereof are connected to the

rail members

22 and 23.

Similarly, the third slope member 30 is formed by connecting a plurality of floor members to form a floor panel 31, and both ends thereof are connected to the

rail members

32 and 33.

The floor members are arranged in parallel along the slope.

A handle 34 is attached to the front end side of the third slope member 30.

The handle 34 is held by hand to perform the expansion and contraction operation, the expansion and the storage.

Fig. 2 shows a state in which the slope device 100 is housed in the interior of the cabin 2 of the vehicle 1.

Fig. 2 shows the inverted state, but the ramp device may be stored so as to be turned upside down toward the floor of the vehicle compartment and be laid flat.

Next, examples of coupling floor members to each other and examples of coupling floor members to rail members are compared.

Although fig. 3 illustrates the coupling structure by taking the two

floor members

11a and 11b and the rail member 13 as an example, the coupling of the other floor members to each other and the coupling of the floor member to the rail member are also similar.

Fig. 3 (a) is a sectional view showing a coupled state, and (b) is an exploded view thereof.

As shown in fig. 1, although a plurality of

floor members

11a, 11b, 11c … are joined in parallel, the floor panel 11 represents a joining structure in which the floor member 11a and the floor member 11b are joined.

The

floor members

11a and 11b in the present embodiment are examples of hollow cross-sectional shapes having a hollow portion a.

Since the convex fitting projection c is formed at one end of the floor member and the concave fitting recess b is formed at the other end, the

floor members

11a and 11b adjacent to each other are fitted and coupled in parallel as shown in fig. 3 (a), and the rail member 13 is coupled to the end so as to extend over the plurality of floor members.

The guide rail 13 is formed with an insertion recess 13d between a projecting piece portion (side wall portion) 13a provided at an upper portion projecting from the floor surface and a pair of upper and lower

fitting pieces

13b and 13c, and is inserted and coupled so that an end portion of the floor member is sandwiched by the upper fitting piece 13b and the lower fitting piece 13 c.

Fig. 4 shows an example in which stepped portions are formed at the end portions of the floor member and are connected so as to overlap the stepped portions.

The step e is formed along the lower surface side at one end of the floor member 11a, and the step f is formed along the upper surface side at the other end thereof.

In the embodiment shown in fig. 4, the floor member 11a and the floor member 11b are overlapped and connected so that the sheet material 15 made of a rubber material, a resin material, or the like is sandwiched between the step surfaces.

This facilitates close contact between the stepped surfaces of the sheet 15, thereby absorbing vibrations during travel of the wheelchair or the like.

Further, the sheet 15 is not necessarily limited thereto, and the step e and the step f may be overlapped and connected to each other in direct contact as shown in fig. 5.

In fig. 6, the sheet having the protruding portion 15a is used as a slip prevention portion of a slope surface, and the protruding portion 15a is a protruding portion protruding toward the surface side of the floor panel, which is included in the sheet sandwiched between the step surfaces where adjacent floor members overlap.

In fig. 7,

floor members

11a, 11b, and 11c … made of a strip-shaped bar material having a solid cross section are connected in a stepped manner by stepped portions having facing surfaces.

In fig. 8, a pair of inner fitting pieces h and i are formed at one end of the floor member 11a in one direction, and a pair of outer fitting pieces j and k are formed at the end of the floor member 11b adjacent thereto, whereby the inner fitting pieces h and i are inserted and fitted into the inner sides of the outer fitting pieces j and k, and a part of the upper inner fitting piece h is cut off to fix the nut member 16a, and the nut member is screwed by the bolt 16b from the lower side.

In fig. 9, an example is shown in which a pair of upper and lower projecting pieces m, n are provided at an end of one floor member 11a, and a pair of upper and lower projecting pieces m, n are also provided at an end of an adjacent floor member 11b, and the floor members are connected to each other by inserting a fitting connection block 17 so as to straddle the adjacent recessed portions.

As a method of connecting floor members, various methods such as fitting and connecting the floor members to each other and overlapping the stepped surfaces with each other in an opposed manner are conceivable.

The material of the floor member is not limited.

For example, when an extruded material of aluminum alloy is used, the fitting pieces having a hollow cross-sectional shape and upper and lower portions are easily formed.

Further, a resin member may be used, in which case a hollow plate material such as a honeycomb shape can be used.

Fig. 10 (a) shows a state in which the ramp device 100 of fig. 1 as an example is deployed outside the vehicle compartment.

The second slope member 20 extends along the rail members on both sides with respect to the first slope member 10, and the third slope member 30 extends along the rail members on both sides with respect to the second slope member 20, thereby forming a slope surface between the floor surface of the vehicle and the road surface or the like.

When the ramp device 100 is stored, the handle 34 shown in fig. 1 is held by hand, and as shown in fig. 10 (b), while the front end side of the ramp is raised, the ramp device 100 is contracted as shown in fig. 10 (c), and is rotated by the connecting shaft of the hinge plate 14.

As shown in fig. 10 (d), the storage in the vehicle interior may be in an upright (upside down) state, or may be stored in a reversed state so as to be horizontally placed on the interior side.

Fig. 11 shows an example of the sliding structure between the rail members.

Fig. 11 is a cross-sectional view of the left rail member of the ramp device 100 shown in fig. 1, but the same applies to the right rail member.

The following examples are given: the first rail member 12 of the first slope member 10 is inserted and coupled so as to sandwich an end portion of the floor panel 11 in a recess 12d provided between a pair of

fitting pieces

12b, 12c provided on a lower portion side.

A side wall portion 12a protruding from the floor surface to the upper side is formed at the upper side of the first rail member 12, and a sliding recessed portion 12e is formed at the inner side.

The second rail member 22 of the second slope member 20 has a recessed portion 22d formed by a pair of

fitting pieces

22b and 22c sandwiched between end portions of the floor plate 21, a side wall portion 22a formed to project from an upper surface side of the floor plate 21, and a sliding recessed portion 22e formed inside.

The third rail member 32 of the third slope member 30 has a side wall portion 32a protruding from the upper surface side, and an end portion of the floor panel 31 is inserted into and connected to a concave portion 32d provided between a pair of upper and lower

fitting pieces

32b and 32 c.

Sliding convex portion 32e is formed on the lower side of side wall portion 32a of third rail member 32, and is slidably fitted and coupled to the inside of sliding concave portion 22e of second rail member 22.

A slide convex portion 22f provided on the outer side of the side wall portion 22a of the second rail member 22 is slidably fitted in a slide concave portion 12e on the inner side of the first rail member 12.

Fig. 12 shows an example of two slopes in which the first slope member 10 and the second slope member 20 are slidably coupled.

The second slope member 20 has a handle 24 at the front end side.

Fig. 13 is a sectional view showing an example of the slide coupling structure between the rail members.

The following examples are given: a sliding recess is formed inside the

first rail members

12 and 13 of the first slope member 10, and the

second rail members

22 and 23 on the second slope member 20 side are slidably fitted into the sliding recess.

The following examples are given: a sliding member 18 having lubricity formed of a resin material or the like is provided between the inner peripheral surface of the sliding recess and the outer peripheral surfaces of the

second rail members

22, 23.

Fig. 14 shows an example in which a tape-like member 18a having lubricity is attached to the sliding connection surface.

Fig. 15 shows another example of connection between the floor member and the rail member.

The following examples are shown: of the pair of

fitting pieces

13b and 13c provided on the lower side of the first rail member 13, the lower fitting piece 13c is extended inward to form a coupling piece portion 113c, and the floor member and the bolt 16b are bolted to each other by the nut 16a in this portion.

Next, a stopper structure for limiting the amount of sliding movement of the first slope member 10 and the second slope member 20 will be described.

Fig. 16 (a) shows an example in which the restricting projection 111 is provided on the front end side in the extending direction of the floor panel 11 of the first slope member 10, the restricted portion 121 is provided on the rear end side of the floor panel 21 of the second slope member 20, and the stopper unit is provided so as to extend slidably without exceeding the restriction.

In this case, as shown in fig. 16 (b), the member 19 may be attached to the upper surface side of the floor panel 11 or the lower surface side of the floor panel 21.

Fig. 17 shows an example of a stopper unit that reduces the second slope member 20 to the first slope member 10 and restricts the movement amount (sliding amount) when stored.

Fig. 17 (b) is an enlarged view of the stopper portion shown in fig. 17 (a).

In this case, the member 19a is provided in the vicinity of the front end side of the floor 21 of the second slope component 20, and the member 19a is in contact with the outer side of the member 19b on the front end side of the floor 11 of the first slope component 10.

Fig. 18 shows an example in which the member 19c is attached to the base side of the first rail member 13.

Fig. 19 shows an example of a ramp device that can be carried to be folded.

The following examples are given: the first slope member 10 is divided into a first divided slope 10A and a second divided slope 10B at both left and right sides of the slope face.

In this case, as shown in fig. 19 (B), the cross-sectional view is an example in which the center portion is rotatably connected to the

rail members

11B and 12B by the pin member 16 d.

With this configuration, when the slope surface is formed, the left and right divided slopes are unfolded in a planar manner, and can be folded and stored when not in use.

Fig. 20 shows an example in which an assist mechanism for assisting is provided in a direction in which the first slope member 10 stands when the slope device 100 is stored in the vehicle interior.

Fig. 20 (a) shows an example in which a coil spring 14b is attached to the bearing portion 14a of the hinge plate 14 and the first slope member 10, and the coil spring 14b applies an urging force in the vertical direction.

The coil spring may be a torsion spring.

Fig. 20 (b) shows an example of a pneumatic or hydraulic damper mechanism 14c provided for assisting in the upright direction of the first slope member 10.

It may also be a spring mechanism that urges the first slope member in the upright direction.

Fig. 21 shows a lock mechanism provided for locking a state in which the ramp device 100 is housed upright in the vehicle compartment.

Fig. 21 (a) shows an example in which a lock pin 14d protruding and sinking into the lock hole 2a on the vehicle body side is provided, and fig. 21 (b) shows an example in which a hook member 14e that rotates about the first slope member side as a fulcrum is provided with respect to the lock hole 2b on the vehicle body side.

Description of the reference numerals

1 … vehicle; 2 … vehicle interior; 10 … a first ramp member; 20 … a second ramp member; 30 … third ramp member; 100 … ramp device.

Claims

1. A ramp device for forming a ramp surface at a step portion,

the slope device has a slope member and rail members connected to both side ends of the slope member in a direction in which a slope face is formed,

the slope members are arranged in parallel, and the adjacent floor members are connected to each other, whereby a load applied to a slope surface is distributed to the floor members.

2. Ramp according to claim 1,

the slope surface is formed by a plurality of slope members, and the adjacent slope members are slidably connected to each other by one of the rail members.

3. Ramp according to claim 1,

the floor members are connected to each other by fitting one end portion into the other end portion.

4. Ramp according to claim 1,

the floor members are connected to each other such that a step surface formed on one end portion and a step surface formed on the other end portion are directly or indirectly connected to each other so as to overlap each other.

5. Ramp according to claim 1,

the floor members are connected to each other by fitting a connecting block across a recess formed in one end and a recess formed in the other end.

6. Ramp according to claim 1,

the end of the floor member is connected to the rail member by inserting and connecting the end of the floor member to an insertion recess formed in the rail member.

7. Slope device according to claim 2,

the slidable coupling between the one rail member and the other rail member is a coupling in which a sliding portion formed in the other rail member is slidably fitted into a sliding recess formed in the one rail member, and a sliding member is disposed between the sliding recess and the sliding portion.

8. Slope device according to claim 2,

the plurality of slope members are capable of sliding and extending and contracting with each other, and have stopper units that limit the amount of sliding in the sliding extension direction.

9. Ramp according to claim 1,

the slope member may be folded and divided into a plurality of pieces with a direction in which the slope surface is formed as an axis.

10. Ramp according to claim 1,

the ramp device is a ramp device that can be deployed from the floor of the vehicle toward the outside of the cabin, and has an assist mechanism for assisting the operation of storage into the cabin from the deployed state.

11. Ramp according to claim 1,

the ramp device is a ramp device that can be deployed from the floor of the vehicle toward the outside of the cabin, and has a lock mechanism for locking a state of being housed from the deployed state into the cabin.