JP2014201920A - Slope device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable slope device that has all of strength performance, safety performance, and portability.SOLUTION: In a slope device constituted by connecting a plurality of plate-like bodies 1, the plate-like bodies 1 have a five-layer structure comprising a first thin plate material 11 formed of fiber-reinforced plastic in a thin corrugate plate shape, first and second thick plate materials 14, 15 formed integrally on both surfaces of the first thin plate material 11 in a thin plate shape by resin foaming respectively, and second and third thin plate materials 12, 13 bonded and fixed to cover outer surfaces of the first thick plate material 14 and second thick plate material 15 respectively and made of fiber-reinforced plastic. In this constitution, mountain projection streaks and valley recess streaks of the first thin plate material 11 are present in a long-side direction of the plate-like body 1, and function as reinforcing ribs respectively to improve rigidity in a lengthwise direction of the plate-like body, so that the slope device can be provided which has small flexural deformation and high reliability.

Description

  The present invention relates to a slope device that spans a step portion and is used for a wheelchair or a person's traffic, and particularly relates to a slope device that is compactly configured to be portable.

  With the recent progress toward a high welfare society, various barrier-free measures have been taken in order to realize smooth and safe movement when disabled or elderly people move in wheelchairs in public facilities. Yes.

  However, such barrier-free measures are preceded by relatively large-scale public facilities, etc., and are still not sufficient for relatively small-scale public facilities or private facilities, especially ordinary households. There are many difficult steps. From such a situation, for example, as a welfare tool that enables safe movement of a wheelchair at a stepped portion, many slope devices that are used across the stepped portion have been proposed (for example, Patent Documents 1 to 6). 3).

  Patent Document 1 discloses a basic portable slope device configured by connecting a plurality of fiber reinforced plastic plates with hinges. In particular, among them, the tread surface of the fiber reinforced plastic plate is shown. Proposals have been made regarding technology for preventing slipping and the structure of the hinge.

  In the cited document 2, a basic portable slope device as shown in the patent is premised, and the technology relating to the structure of at least two plate members constituting the slope device, that is, the plate member is made of a hard material. There has been proposed a technique comprising a thin plate-like two hard thin plate materials and a soft thick plate material interposed between the two hard thin plate materials.

  In Patent Document 3, in a slope device configured by connecting a plurality of fiber-reinforced plastic plates with hinges, a surface edge (tread) of the fiber-reinforced plastic plate is placed on a side edge of the fiber-reinforced plastic plate. The thing provided with the derailment prevention wall extended upwards is disclosed.

JP 2002-97768 A Utility Model Registration No. 3171678 JP 2003-230600 A

  By the way, in a slope device, especially a portable slope device, strength performance and safety performance sufficient to ensure safe movement of a wheelchair, etc. and portability represented by weight reduction are regarded as important. The slope device shown in each of the listed patent documents has some room for improvement in terms of the parallelism of these performances and the like because any one of these performances is weighted.

  Therefore, the present invention has been made for the purpose of realizing parallelism of strength performance, safety performance, and portable performance in a portable slope device.

  In the present invention, the following configuration is adopted as a specific means for solving such a problem.

  In the first invention of the present application, in the slope device that is configured by connecting a plurality of substantially long rectangular plate-like bodies 1 in the direction of the short side thereof and spanning the stepped portion, the plate-like body 1 is The first thin plate material 11 formed into a thin corrugated shape having a continuous waveform in the short side direction by fiber reinforced plastic, and the thick plate shape integrally formed on one surface of the first thin plate material 11 by resin foam molding The first thick plate material 14, the thick plate-like second thick plate material 15 integrally formed by resin foam molding on the other surface of the first thin plate material 11, and the outer surface of the first thick plate material 14. A thin plate-like second thin plate material 12 made of fiber-reinforced plastic that is bonded and fixed, and a thin plate-like third thin plate material 13 made of fiber-reinforced plastic that is bonded and fixed so as to cover the outer surface of the second thick plate material 15. It is characterized by having a five-layer structure.

  In the second invention of the present application, in the first invention, the second thick plate material 15 is formed thicker than the first thick plate material 14, and the second thick plate material 15 side is positioned on the tread surface side. It is characterized by that.

  In the third invention of the present application, in the first or second invention, the second thin plate material 12 is formed to be thicker than the third thin plate material 13, and the third thin plate material 13 side is the tread side. It is characterized by being located in.

  In the fourth invention of the present application, in the first, second, or third invention, of both edges in the short side direction of the plate-like body 1, the edge corresponding to the outer edge side of the slope device is The anti-derailing wall 4 extending upward from the surface of the plate-like body 1 is provided, and the inner wall surface 4a of the anti-derailing wall 4 is inclined outward in the slope width direction from the base end side to the top surface side. It is characterized by an inclined surface.

  In the fifth invention of the present application, in the first, second, third, or fourth invention, the amount of protrusion downward from the plate-like body 1 can be adjusted on the back side of the plate-like body 1. The auxiliary leg 20 is configured to be capable of restricting the bending deformation of the plate-like body 1 in the grounded state.

  (A) According to the slope device according to the first invention of the present application, the outer surfaces of the thick plate-like first thick plate member 14 and the second thick plate member 15 integrally formed by resin foam molding are made of fiber reinforced plastic. In addition to bonding and fixing the thin plate-like second thin plate material 12 and the third thin plate material 13, a waveform is formed in the short side direction between the first thick plate material 14 and the second thick plate material 15 by fiber reinforced plastic. Since the first thin plate member 11 formed in a continuous thin corrugated plate shape has a five-layer structure, the ridges and valley ridges formed by the corrugations of the first thin plate member 11 are the above. Since it exists in the long-side direction of the plate-like body 1 (that is, the traveling direction of the wheelchair etc. on the plate-like body 1) and these function as reinforcing ribs, the reinforcing action of the mountain-shaped ridges and the valley-shaped ridges. The rigidity in the longitudinal direction of the plate-like body 1 is, for example, In addition to the dramatic improvement in comparison with the case where the first thin plate member 11 does not exist, the first thin plate member 11 has a thin corrugated plate shape, and both the weight increase and the cost increase associated with the use of the first thin plate member 11 are reduced. As a synergistic effect of these, it is possible to reduce the cost of a slope device that has high strength, little bending deformation when a load is applied (when moving a wheelchair, etc.), high reliability in use, and excellent portability. Can be provided.

  (B) According to the slope device concerning the 2nd invention of this application, in addition to the effect as described in the above (a), the following peculiar effect is acquired. That is, in the present invention, the second thick plate material 15 is formed thicker than the first thick plate material 14 and the second thick plate material 15 side is positioned on the tread surface side. In the state, the second thick plate material 15 is located below the center in the thickness direction of the plate-like body 1 (the back side of the slope device), and the plate-like body 1 receives the load weight and bends. When deformation occurs, the second thick plate member 15 functions as a strength member on the tension side, and the bending deformation of the plate-like body 1 is effectively suppressed, and as a result, reliability during use of the slope device is further improved. Can be expected.

  (C) According to the slope device concerning the 3rd invention of this application, in addition to the effect given in the above (a) or (b), the following peculiar effects are acquired. That is, in the present invention, the second thin plate member 12 is formed thicker than the third thin plate member 13 and the third thin plate member 13 side is positioned on the tread surface side. When the second thin plate member 12 functions as a strength member on the tension side, the bending effect of the plate-like body 1 is suppressed based on the tensile resistance of the second thin plate member 12. As a result, bending deformation of the plate-like body 1 can be effectively suppressed, and further improvement in reliability during use of the slope device can be expected.

  (D) According to the slope device concerning the 4th invention of this application, in addition to the effect given in the above (a), (b), or (c), the following peculiar effect is acquired. That is, according to the present invention, the both sides of the plate-like body 1 in the short side direction are prevented from coming off from the surface of the plate-like body 1 to the edge corresponding to the outer edge side of the slope device. Since the wall 4 is provided and the inner wall surface 4a of the derailment prevention wall 4 is an inclined surface that is inclined outward in the slope width direction from the base end side to the top surface side, the plate-like body 1 of the slope device is provided. When the wheelchair moves up, for example, when the traveling direction is shaken and the wheel rides on the inner wall surface 4a of the anti-derailing wall 4, the wheel moves downward along the inner wall surface 4a. Since it receives a forcible force that slides down, the riding state on the inner wall surface 4a is eliminated at an early stage, and a higher anti-derailing effect can be obtained, which further improves safety when using a wheelchair. .

(E) According to the slope device according to the fifth invention of the present application, in addition to the effects described in (a), (b), (c) or (d), the following specific effects are obtained. It is done. In other words, in the present invention, the amount of protrusion downward from the plate-like body 1 can be adjusted on the back surface side of the plate-like body 1 and the deformation of the plate-like body 1 is restricted in the grounded state. Since the auxiliary leg 20 is configured to be capable of being used, for example, even if the device is a long slope device and used under a usage condition in which the load weight increases, the auxiliary leg 20 is used in advance. By setting the leg 20 in an overhanging state, the bending displacement of the slope device can be reliably suppressed, and the slope device can be used with confidence without feeling uneasy due to the bending deformation of the plate-like body 1. it can.
Further, since the amount of protrusion of the auxiliary leg 20 downward from the plate-like body 1 can be adjusted, it is related to the change in the span angle of the slope device that differs depending on the site of use of the slope device. Therefore, the slope device can be used in a state in which the deflection displacement is always kept low, and the reliability in use is improved, and the effect is particularly remarkable in a long slope device.

1 is an overall perspective view of a slope device according to a first embodiment of the present invention. It is a top view of the slope apparatus shown in FIG. It is an AA arrow line view of FIG. It is a fragmentary sectional view which shows the laminated structure of the plate-shaped object shown in FIG. It is BB expanded sectional drawing of FIG. It is sectional drawing which shows the form at the time of carrying of the said slope apparatus. It is function explanatory drawing of a derailment prevention wall. It is an expanded sectional view in the front view of the C section of FIG. It is what attached the grounding leg to the slope apparatus, and is a side view which shows the state in which the grounding leg is in a retracted state. FIG. 10 is a side view showing a state where the grounding leg is unfolded and extended from the state shown in FIG. 9.

Hereinafter, the present invention will be specifically described based on preferred embodiments.
1 to 3 show a slope device Z according to an embodiment of the present invention. This slope device Z is a portable slope device Z, and is constructed by connecting two slope bodies, that is, a first slope body P1 and a second slope body P2 so that they can be unfolded and folded by a hinge material 7. . In addition, the first slope body P1 and the second slope body P2 are, as shown in FIG. 6, the anti-annularity prevention wall 4 on the first slope body P1 side and the anti-annularity prevention wall 4 on the second slope body P2 side in the folded state. So that the second slope body P2 is set smaller than the width dimension of the first slope body P1 by a predetermined amount. Has been.

  Therefore, here, the second slope body P2 will be described as appropriate while mainly explaining the structure of the first slope body P1 out of the first and second slope bodies P1 and P2, and finally the above-mentioned The configuration of the entire slope device Z will be clarified.

A: Configuration of Slope Device Z The first slope body P1 includes a plate-like body 1 that has a long rectangular plate-like appearance. The plate-like body 1 forms the main part of the slope device Z of the first slope body P1, and has a five-layer structure as described below.

  That is, as shown in FIGS. 4 and 5, the plate-like body 1 has the first thick plate member 14 and the second thick plate member 15 disposed on the surface side of the thin corrugated first thin plate member 11, respectively. The second thin plate member 12 and the third thin plate member 13 are arranged on the outer surface sides of the first and second thick plate members 14 and the second thick plate member 15, respectively.

  The first thin plate member 11 is formed into a long rectangular thin corrugated plate made of fiber reinforced plastic, and in that case, so that the waveform continues in the short side direction of the first thin plate member 11, in other words, The wave forming direction is set so that the chevron ridges and the valley ridges formed by the corrugations extend in the long side direction (longitudinal direction) of the first thin plate material 11. As the fiber reinforced plastic, glass fiber or carbon fiber, as well as those reinforced with resin fibers such as Kevlar and Dyneema are applicable.

  The first thick plate member 14 and the second thick plate member 15 are formed by setting the first thin plate member 11 in a molding die, and then injecting a foamable resin material into the molding die to foam it. It is integrated with the first thin plate member 11. Here, the first thin plate member 11 is set in the molding die. As shown in FIGS. 4 and 5, the thickness (wall thickness) of the first thick plate member 14 is the second thick plate member. The first thin plate member 11 is offset toward the first thick plate member 14 so as to be smaller than that of 15 by a predetermined dimension. The offset of the first thin plate member 11, that is, the relative thickness of the first thick plate member 14 and the second thick plate member 15 is set as described below with respect to the first thin plate member 11. This is because it functions as a tensile-side strength member during bending deformation and contributes to the improvement in strength performance of the plate-like body 1.

  The foamable material resin of the first thick plate material 14 and the second thick plate material 15 is desirably a relatively hard resin, and for example, foamed polystyrene and foamed polyurethane are applicable.

  The first thick plate member 14 and the second thick plate member 15 are formed by integrally foaming the first thick plate member 14 and the second thick plate member 15 on both surfaces of the first thin plate member 11, and then the outer surface of the first thick plate member 14. The second thick plate member 15 is integrated with the thick plate members 14 and 15 by being bonded and fixed to the outer surface so as to cover the outer surface of the second thick plate member 15. Here, as the material resin of the first thick plate member 14 and the second thick plate member 15, a fiber reinforced plastic reinforced with glass fiber, carbon fiber, or the like is employed as in the first thin plate member 11.

  Moreover, although it is the thickness (thickness) of the said 2nd thin plate material 12 and the 3rd thin plate material 13, in this embodiment, the thickness of the said 2nd thin plate material 12 adhere | attached and fixed to the said 1st thick plate material 14 is shown. Is set to be thicker than the thickness of the third thin plate 13 that is bonded and fixed to the second thick plate 15. This setting is for causing the second thin plate member 12 to function as a strength member on the tension side when the plate-like body 1 is deformed and to contribute to improving the strength performance of the plate-like body 1 as described later.

  In the plate-like body 1, the surface 1a on the third thin plate member 13 side is a tread surface through which a wheelchair or the like passes on the surface of the plate-like member 1, and the surface 1b on the second thin plate member 12 side is The back surface of the plate-like body 1 is used.

  The plate-like body 1 is manufactured as described above. However, the plate-like body 1 does not have the same thickness over its entire length, and as shown in FIG. 1, one end 1c of the plate-like body 1 is formed. The other end 1d is configured so that the thickness gradually decreases toward the tip. This is because, when the slope device Z is installed in the stepped portion, the steps between the end portions 1c, 1d and the floor surface are kept as small as possible so as not to hinder getting on and off the wheelchair. In this embodiment, one end 1c side of the plate-like body 1 is used as an entrance / exit on the higher side of the stepped portion, and the other end 1d side of the plate-like body 1 is used as an entrance / exit on the lower side of the stepped portion. , Each has to work.

  The first edge material 2, the second edge material 3, and the end members 5 and 6 described below are attached to the edge portion on the short side of the plate-like body 1 manufactured as described above.

  The first edge material 2 is manufactured, for example, by drawing aluminum, and as shown in FIG. 5, it is fitted and fixed to the edge of the plate-like body 1 from its side (adhesion fixing). ) Having a substantially U-shaped cross-section, and a derailment prevention wall 4 integrally formed on the upper side of the fitting portion 2a. The derailment prevention wall 4 has a predetermined height, and its inner wall surface 4a is an inclined surface that slopes outward in the slope width direction from the base end side to the top surface side of the derailment prevention wall 4. Yes.

  Note that the derailment prevention wall 4 is not provided over the entire length of the first edge member 2, and as shown in FIG. 1, the one end 1c on the one end 1c side of the plate-like body 1 is provided. However, on the other end 1d side, it is provided only up to a position relatively far away from the other end 1d. This is because the other end portion 1d side is located on the lower side of the stepped portion, and the space on the lower side of the stepped portion is relatively small in ordinary houses, and the wheelchair can be boarded / exited from the front side of the slope device Z. For this reason, the wheel removal preventing wall 4 is not provided on the other end 1d side, and the wheelchair can be loaded and unloaded from the side of the slope device Z through the other end 1d side. Is.

  Note that, at the one end 1 c and the other end 1 d of the plate-like body 1, the end member 5 and the end member 6 are attached continuously to the end of the first end edge material 2.

  As shown in FIG. 5, the second edge material 3 is formed into a substantially U-shaped cross section by, for example, aluminum drawing, and is fitted and fixed to the edge of the plate-like body 1 from the side ( Adhesive fixation).

  The plate body 1 manufactured as described above constitutes the first slope body P1. Further, as shown in FIGS. 1 and 5, the second slope body P2 is manufactured in an opposite manner to the first slope body P1, and the slope device Z is obtained by connecting both of them. . That is, as shown in FIGS. 1 and 5, the first slope body P1 and the second slope body P2 are juxtaposed so that the second edge members 3 of the plate-like bodies 1 face each other. In this state, the upper surface of the second edge member 3 on the first slope body P1 side and the upper surface of the second edge member 3 on the second slope body P2 side are connected by the hinge material 7 and these Are integrated to obtain the slope device Z. The hinge material 7 is preferably a flexible synthetic resin tape.

B: Effect of Slope Device Z, etc. When necessary, the slope device Z is carried with the second slope body P2 folded over the first slope body P1, as shown in FIG. .

  On the other hand, when the slope device Z is used in the stepped portion, the first slope body P1 and the second slope body P2 are developed to be in a flat state as shown in FIGS. Then, the stepped portion is stretched so that the one end 1c of the plate-like body 1 is on the higher side and the other end 1d is on the lower side.

  By moving the wheelchair or the like using the slope device Z spanned over the step portion in this manner, the wheelchair or the like can be moved safely and smoothly regardless of the presence of the step portion.

  Here, for example, as shown in FIGS. 7 and 8, when the traveling direction of the wheelchair swings and the wheel W rides on the inner wall surface 4a of the derailment prevention wall 4, the inner wall surface 4a Since the wheel W is an inclined surface that is inclined outward in the slope width direction from the base end side toward the top surface side, the wheel W slides downward along the inner wall surface 4a from the inner wall surface 4a. You will be forced. As a result, the riding state of the wheel W on the inner wall surface 4a is eliminated at an early stage, and a higher anti-derailing effect can be obtained, which further improves the safety when using the wheelchair.

  On the other hand, in the slope device Z, a thin plate-like second thin plate material 12 made of fiber reinforced plastic is formed on the outer surfaces of the thick plate-like first thick plate material 14 and the second thick plate material 15 integrally formed by resin foam molding. In addition to bonding and fixing the third thin plate material 13, the first thick plate material 14 and the second thick plate material 15 are formed between the first thick plate material 14 and the second thick plate material 15 in a thin corrugated shape having continuous waveforms in the short side direction by fiber reinforced plastic Since the first thin plate member 11 has a five-layer structure, the ridges and valley ridges formed by the corrugations of the first thin plate member 11 are formed in the long side direction of the plate member 1. (That is, the traveling direction of a wheelchair or the like on the plate-like body 1), and these function as reinforcing ribs. As a result, the rigidity in the longitudinal direction of the plate-like body 1 is dramatically improved, for example, as compared with the case where the first thin plate material 11 does not exist, by the reinforcing action of the mountain-shaped ridges and the valley-shaped ridges. It will be. Moreover, the said 1st thin board | plate material 11 is thin corrugated sheet shape, and both the weight increase and cost increase accompanying this can be suppressed low.

  As a synergistic effect, it is possible to provide a low-priced slope device Z that is high in strength, has little bending deformation when a load is applied (when moving a wheelchair or the like), has high reliability in use, and is excellent in portability. .

  Further, in the slope device Z, the second thick plate material 15 in the plate-like body 1 is formed thicker than the first thick plate material 14, and the second thick plate material 15 side is positioned on the tread surface side. Therefore, in the use state of the slope device, the second thick plate material 15 is positioned below the center in the thickness direction of the plate-like body 1. As a result, when the plate-like body 1 is subjected to a load weight and undergoes bending deformation, the second thick plate material 15 functions as a strength member on the tension side, and the bending deformation of the plate-like body 1 is effectively suppressed. And further improvement of the reliability at the time of use of the said slope apparatus Z can be anticipated.

Further, in the slope device Z, the second thin plate member 12 is formed thicker than the third thin plate member 13 and the third thin plate member 13 side is positioned on the tread surface side. When the body 1 is subjected to a load weight to cause bending deformation and the second thin plate 12 functions as a strength member on the tension side, the deformation of the plate 1 based on the tensile resistance of the second thin plate 12 is performed. As a result, the bending deformation of the plate-like body 1 is effectively suppressed, and further improvement in reliability when the slope device Z is used can be expected.

C: Other configuration In the above embodiment, the auxiliary leg 20 is not provided for mechanically suppressing the bending change due to the load weight of the slope device Z as necessary, but in the other embodiment of the present invention, This can also be provided.

  That is, as shown in FIGS. 9 and 10, auxiliary legs 20 are provided on the back side of the plate-like body 1 of the slope device Z. The auxiliary leg 20 is inserted through a mounting bracket 26 so as to be swingable to the plate-like body 1 side, and is inserted into the first swinging member 21 so as to be extendable and contractable. In addition, a large number of latch holes 30 are provided, and the insertion member 22 that can be fixed and held at a required expansion / contraction position by operation of the selective fixing pin 29 and swings toward the plate-like body 1 via the mounting bracket 26. The second rocking member 23 is connected so as to be capable of being connected, and the grounding piece 25 is supported by a pin 24 that connects the tip of the first edge member 2 and the tip of the second rocking member 23.

  When the auxiliary leg 20 is not used, as shown in FIG. 9, the insertion member 22 is pushed into the first rocking member 21 side and held by the selective fixing pin 29. It is stored and held on the back side of the plate-like body 1.

  On the other hand, when the auxiliary leg 20 is used, the fixing action of the selective fixing pin 29 is released, the insertion member 22 is pulled out from the first swing member 21, and the grounding piece 25 approaches the floor surface. Or fix this as a contact state. In this state, for example, even if it is a long slope device and is used under a usage condition that increases the load weight, the auxiliary leg 20 reliably suppresses the deflection displacement of the slope device Z. It is done. Therefore, the user can use the slope device Z in peace without feeling uneasy due to the bending deformation of the plate-like body 1.

  The slope device of the present invention can be used as part of a barrier-free measure, such as realizing safe driving of a wheelchair or the like in a living environment where a step portion exists.

1 .. Plate-like body 2 .. First edge material 3 .. Second edge material 4 .. Derailment prevention wall 5 .. End member 6 .. End member 7 .. Hinge material 11. Plate material 12 ・ ・ Second thin plate material 13 ・ ・ Third thin plate material 14 ・ ・ First thick plate material 15 ・ ・ Second thick plate material 20 ・ ・ Auxiliary leg 21 ・ ・ First swing member 22 ・ ・ Insertion material 23 ・・ Second rocking material Z ・ ・ Slope device

Claims (5)

A slope device that is configured by connecting a plurality of substantially rectangular plate-like bodies (1) in the short side direction, and is used by spanning over a stepped portion,
The plate-like body (1) is
A first thin plate material (11) formed in a thin corrugated shape in which the waveform is continuous in the short side direction by fiber reinforced plastic;
A thick plate-like first thick plate material (14) integrally formed by resin foam molding on one surface of the first thin plate material (11);
A thick plate-like second thick plate material (15) integrally formed by resin foam molding on the other surface of the first thin plate material (11);
A thin plate-like second thin plate material (12) made of fiber-reinforced plastic that is bonded and fixed so as to cover the outer surface of the first thick plate material (14);
A thin plate-like third thin plate material (13) made of fiber-reinforced plastic that is bonded and fixed so as to cover the outer surface of the second thick plate material (15);
A slope device characterized by having a five-layer structure. In claim 1,
The slope device characterized in that the second thick plate member (15) is formed thicker than the first thick plate member (14), and the second thick plate member (15) side is positioned on the tread side. In claim 1 or 2,
The slope device characterized in that the second thin plate member (12) is formed thicker than the third thin plate member (13), and the third thin plate member (13) side is positioned on the tread side. In claim 1, 2 or 3,
Out of both edges in the short side direction of the plate-like body (1), on the edge corresponding to the outer edge side of the slope device, a derailment prevention wall extending upward from the surface of the plate-like body (1). (4) is provided, and the inner wall surface (4a) of the anti-derailing wall (4) is an inclined surface inclined outward in the slope width direction from the base end side toward the top surface side. Slope device. In claim 1, 2, 3 or 4,
On the back surface side of the plate-like body (1), the amount of protrusion downward from the plate-like body (1) can be adjusted, and in the grounded state, the deformation deformation of the plate-like body (1) is restricted. A slope device comprising an auxiliary leg (20) configured to be able to perform.