JP6278743B2 - Slope device for vehicle - Google Patents

Description

  The present invention relates to a vehicle slope device that can easily get on and off a wheelchair or unload a load.

A welfare vehicle or the like may be provided with a slope device that allows passengers to get on and off while sitting in a wheelchair. In this type of slope device, when a plurality of slope members are stored in the vehicle in a stacked state, the slope members may come into contact with each other due to vibrations of the vehicle body during traveling, and scratches or abnormal noise may occur. In order to prevent the occurrence of such scratches and abnormal noises, for example, Patent Document 1 discloses rattling by interposing a spacer between the first and second slope members when they are folded and stored. A structure to be suppressed is disclosed.

JP 2005-193756 A

  By the way, in the said patent document 1, when a spacer wears by repeated use of a slope apparatus, there exists a concern that a clearance gap will arise between both slope members and rattling will generate | occur | produce.

  The present invention has been made in view of the above-described conventional situation, and an object of the present invention is to provide a vehicle slope device that can prevent a gap from being generated even when a slide member is worn by repeated use.

The invention according to claim 1 includes at least first and second slide members, the first slide member is rotatably supported on the lower side of the opening of the vehicle body, and the second slide member slides on the first slide member. A slope device for a vehicle that is supported in such a manner that the second slide member is slidably overlapped with the first slide member and can be housed in the vehicle body. Provided with an urging means for urging the first and second slide members in a direction in which the overlapping surfaces of the first and second slide members come into contact with each other when placed on the slide member in the storage state;
The urging means is provided on an engagement member provided on one of the first slide member or the second slide member, an urging member interposed between the engagement member and the one slide member, and the other. The engaging member includes a spacer surface having an abutting surface that abuts against the urging force of the urging member and a guide portion that guides the engaging member to the abutting surface .

  According to the slope device of the first aspect of the present invention, when the second slide member is placed on the first slide member in the housed state, the first and second slide members are arranged so that the overlapping surfaces of each other are the same. Since the urging means for urging in the abutting direction is provided, even if the sliding surfaces of the first and second slide members are worn due to repeated use of the slope device, the first and second urging forces are applied by the urging force of the urging means. The gap between the overlapping surfaces of the slide member can be made zero, and rattling can be prevented over a long period of time. As a result, it is possible to prevent scratches and abnormal noises from being generated due to vibrations while the vehicle is running.

The urging means includes an engaging member provided on one of the first slide member and the second slide member, an urging member interposed between the engaging member and the one slide member, and the other. And the spacer member is provided with a contact surface on which the engagement member abuts and a guide portion for guiding the engagement member to the contact surface. When the slope member is superposed in the retracted state, the first and second slide members are brought into contact with each other because the engaging member rides on the contact surface of the spacer member while compressing the biasing member. Will be energized. As a result, even if the slide surface surfaces of the first and second slide members are worn, the overlapping surfaces are always urged in the direction in which they are in contact with each other, so there is no gap between the overlapping surfaces. Shaking can be reliably prevented.

  Further, since the guide portion is formed on the spacer member, the engaging member can be reliably guided to the contact surface without being caught by the spacer member.

It is a side view of the slope apparatus of the motor vehicle by Example 1 of this invention. It is a top view of the slope device. It is a side view of the slope device. FIG. 4 is a cross-sectional rear view (sectional view taken along line IV-IV in FIG. 2) of the urging means at the storage position of the slope device. FIG. 5 is a cross-sectional side view of the urging means (cross-sectional view taken along the line V-V in FIG. 4). FIG. 5 is a cross-sectional side view (a cross-sectional view taken along the line VI-VI in FIG. 2) of the stopper portion at the use position of the slope device. FIG. 10 is a bottom perspective view of a second slide member of the slope device. It is a schematic block diagram of the said biasing means.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

  1 to 8 are views for explaining a vehicle slope device according to a first embodiment of the present invention. In the present embodiment, front, rear, left, and right mean front, rear, left, and right in a state of sitting on the seat and looking at the front of the vehicle.

  In the figure, reference numeral 1 denotes a wheelchair slope device mounted on a car body 2 of an automobile. The slope device 1 is configured such that a wheelchair 8 can be boarded / exposed by installing a slope mechanism 4 between a boarding / exiting port (opening) 2 a formed at the rear end of the vehicle body 2 and the ground 3. ing.

  A flip-up-type back door 5 that opens and closes the entrance / exit 2a is pivotally supported on the upper side portion of the entrance / exit 2a of the vehicle body 2, and a tailgate 6 is pivoted downwardly on the lower side portion. It is supported. In the vehicle body 2, a floor panel 7 connected to the lower side of the entrance 2a is disposed.

  The slope mechanism 4 includes a step plate 10 attached near the entrance 2a of the floor panel 7, a first slide plate 14 connected to the step plate 10 via a hinge pin 11 so as to be vertically rotatable, And a second slide plate 15 supported by the first slide plate 14 so as to be able to advance and retreat.

  The slope mechanism 4 opens the back door 5 upward, rotates the first and second slide members 14 and 15 out of the vehicle with the tailgate 6 opened downward, and moves the second slide member 15 Pull-out between the use position A to be pulled out and grounded to the ground 3 and the storage position B to be stored in the vehicle body 2 in a state where the second slide member 15 is slid so as to overlap the first slide member 14. It is possible.

  The first slide member 14 includes left and right outer rails 17, 17 and a plurality of top plates 18 arranged between the outer rails 17. The outer rail 17 and the top plate 18 are manufactured by extrusion molding of aluminum.

  The left and right outer rails 17 have a flat base portion 17a to which the top plates 18 are fastened and fixed, and a rail portion 17b integrally formed so as to protrude upward from the base portion 17a (see FIG. 4). The rail portion 17b is formed with a concave portion 17c having a U-shaped cross section that opens inward, and a plurality of resin-made sliding members 20 are arranged at predetermined intervals and fixed in the concave portion 17c. Has been. The sliding member 20 has a U-shaped cross section having a lower side 20a and an upper side 20b. Further, buffer members 16 and 16 for absorbing impact force due to dropping during the loading / unloading operation are attached to the rear end portion of the lower surface of the first slide member 14.

  The second slide member 15 includes left and right inner rails 21, 21 and a plurality of top plates 22 arranged between the inner rails 21. The inner rail 21 and the top plate 22 are made of extruded aluminum.

  The left and right inner rails 21 include a flat plate portion 21a in which each top plate 22 is fixed by a fastening member 23, and a guide rail portion 21b for preventing wheel removal that extends upward following the outer edge of the flat plate portion 21. Have The guide rail portion 21b is formed with a convex portion 21c that engages with the sliding member 20 in the concave portion 17c of the outer rail 17 so as to be slidable in and out of the guide rail portion 21b. By engaging the convex portions 21c of the left and right inner rails 21 with the concave portions 17c of the outer rails 17, the second slide member 15 is slidable in and out of the first slide member 14, and can be slid in the left and right directions. It is supported in a state where movement is restricted in the vertical direction.

  Here, in this embodiment, when the second slide member 15 is slid with respect to the first slide member 14, the lower surface 21 d of the convex portion 21 c of the inner rail 21 is basically fixed to the outer rail 17. The upper surface of the lower side portion 20a of the sliding member 20 is slid. Further, when the second slide member 15 is overlapped with the first slide member 14, the upper surface 21e of the convex portion 21c and the upper side portion 20b of the slide member 20 are overlapped with each other without a gap. .

  Each top plate 22 has a concave portion 22a formed on the front and rear surfaces thereof facing each other, and a prismatic key member 19 is driven into the concave portions 22a to thereby apply a load in the vertical direction adjacent to the top plate 22, 22 has a structure which bears in cooperation (see FIGS. 5 and 6). In addition, 22b is a lightening hole. A similar structure is adopted for the top plate 18 of the first slide member 14 for the coupling structure and the lightening hole. With this configuration, the first and second slide members 14 and 15 can be reduced in weight, and the rigidity against the load applied to the slide members 14 and 15 can be greatly increased.

  In the slope device 1, when the second slide member 15 is placed on the first slide member 14 in the retracted state, the first and second slide members 14 and 15 are separated from each other, that is, the convex portion. There is provided a biasing means 25 that biases the upper surface 21e of 21c and the upper side portion 20b of the sliding member 20 in a direction in which they abut against each other.

  The biasing means 25 is interposed between the left and right engaging members 26, 26 provided at the rear end portion of the second slide member 15 and between the engaging member 26 and the lower surface of the top plate 22. The urging member 27 includes left and right spacer members 28 and 28 provided at the rear end of the first slope member 14, and has the following structure in detail.

The engaging member 26 includes an engaging portion 26a formed with a curved surface protruding downward from the lower surface of the top plate 22, a shaft portion 26b formed to be connected to the engaging portion 26a, and connected to the shaft portion 26b. And a large-diameter portion 26c formed.

  A large diameter hole 22d into which the large diameter part 26c can be inserted is formed at the bottom 22c of the lightening hole 22b of the top plate 22, and the shaft part 26b extends inwardly after the large diameter hole 22d. And a small-diameter portion 22e through which can be inserted (see FIG. 7A).

  The engaging member 26 inserts the large diameter portion 26c thereof into the large diameter hole 22d from below the top plate 22, and engages the shaft portion 26b with the small diameter portion 22e. In this state, the inner rail 21 is disposed so as to cover the large-diameter hole 22d with the flat plate portion 21a, and the flat plate portion 21a is fixed to the top plate 22 by each fastening member 23 (see FIG. 7B). This prevents the shaft portion 26b from falling out of the large diameter hole 22d.

  The urging member 27 is made of an elastic member such as rubber, and is attached to the shaft portion 26b so as to be positioned between the bottom portion 22c of the top plate 22 and the engaging portion 26a.

  The spacer member 28 is a rectangular parallelepiped resin part, and is fixed to the inner end portion of the base portion 17a of the outer rail 17 by a pair of bolts 24, 24 attached from below.

  When the spacer member 28 is housed, the engaging member 26 resists the urging force of the urging member 27, that is, the abutting surface 28 a that rides up while compressing the urging member 27, and the engaging member 26. It has an R-shaped guide portion 28b that leads to the contact surface 28a.

  At the rear end of the spacer member 28, a stopper portion 28c is formed in a stepped manner. On the other hand, the top plate 22 positioned at the front end of the second slide member 15 is formed with a locking portion 22d extending downward, and the second locking portion 22d comes into contact with the stopper portion 28c to form the second. The maximum pull-out amount of the slide member 15 is regulated (see FIG. 6).

  The stopper portion 28c is formed so as to protrude from the contact surface 28a. Thus, the contact surface 28a is prevented from being worn by the second slide member 15 coming into contact with the contact surface 28a by repeated insertion and removal operations.

  8A, the engagement portion between the top plate 22 and the engagement member 26 with respect to the gap Y between the contact surface 28a of the spacer member 28 and the top plate 22 of the second slide member 15. The distance X to 26a is set to be slightly larger. In the state in which the second slide member 15 is housed, the urging member 27 is compressed when the engaging portion 26a rides on the contact surface 28a, and the distance X ′ is equal to the gap Y (see FIG. 8B). ).

  As described above, according to this embodiment, when the second slide member 15 is accommodated in the first slide member 14 and overlapped, the second slide member 15 is moved relative to the first slide member 14 by the biasing means 25. The overlapping surfaces composed of the upper surface 21e of the convex portion 21c and the upper side portion 20b of the sliding member 20 are biased in the direction in which they are separated from each other. Even if the slide surface composed of the lower surface 21d of the convex portion 21c of the rail 21 and the lower side portion 20a of the sliding member 20 fixed to the outer rail 17 is worn, the upper surface 21e of the convex portion 21c and the slide The gap between the overlapping surfaces composed of the upper side portion 20b of the moving member 20 can always be zero, and rattling can be prevented. As a result, it is possible to prevent scratches and abnormal noises from being generated due to vibrations while the vehicle is running.

  In the present embodiment, the biasing means 25 includes an engaging member 26 and a biasing member 27 provided on the second slide member 15 and a spacer member 28 provided on the first slide member 14. The spacer member 28 is formed with an abutting surface 28a that abuts when the engaging member 26 rides on when retracted and an R-shaped guide portion 28b that guides the engaging member 26 to the abutting surface 28a. The member 26 compresses the urging member 27 and rides on the contact surface 28a of the spacer member 28, whereby the second slide member 15 moves away from the first slide member 14, that is, the upper surface 21e of the convex portion 21c and the slide member. 20 is biased in the direction in which the upper side portion 20 is in pressure contact. Thereby, even if the sliding surfaces of the outer rail 17 and the inner rail 21 are worn, there is no gap between the overlapping surfaces, and rattling can be reliably prevented.

  Further, since the spacer member 28 is formed with an R-shaped guide portion 28b that serves as a guide when the engaging member 26 rides on the contact surface 28a, the engagement member 26 does not get caught on the spacer member 28. Can guide smoothly.

In the present embodiment, the stopper member 28c is formed on the spacer member 28, and the stopper member 28c is brought into contact with the engaging portion 22d of the second slide member 15. The amount of drawer when the two-slide member 15 is used can be restricted, a new stopper part can be dispensed with, and the part cost can be reduced accordingly.

In the above embodiment, the case where two slide members are provided has been described. However, the present invention can also be applied to a case where three or more slide members are provided. For example, when three slide members are provided, it is desirable that the urging means be configured so that the overlapping surfaces are brought into contact with each other when the three slide members are overlapped and stored.

Further, in the above-described embodiment, the example of the welfare vehicle slope device for getting on and off the wheelchair has been described, but the present invention is also applicable to a slope device for loading and unloading luggage in a truck or the like, In this case as well, substantially the same effect as in the previous embodiment can be obtained.

1 Slope device 2 Car body 2a Entrance / exit (opening)
14 1st slide member 15 2nd slide member 20b Upper side part (overlapping surface)
21e Upper surface (overlapping surface)
25 Biasing means 26 Engagement member 27 Biasing member 28 Spacer member 28a Abutting surface 28b Guide portion B Stored position

Claims (1)

At least first and second slide members are provided, the first slide member is rotatably supported on the lower side of the opening of the vehicle body, the second slide member is slidably supported by the first slide member, A vehicle slope device configured to be housed in the vehicle body in a state in which two slide members are slid to overlap the first slide member,
Provided with an urging means for urging the first and second slide members in a direction in which the overlapping surfaces of the first and second slide members come into contact with each other when the second slide member is placed on the first slide member to be stored. ,
The urging means is provided on an engagement member provided on one of the first slide member or the second slide member, an urging member interposed between the engagement member and the one slide member, and the other. The vehicle includes: a contact surface on which the engagement member contacts against the urging force of the urging member; and a spacer member having a guide portion that guides the engagement member to the contact surface. Slope device.

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