WO2022131326A1

WO2022131326A1 - Handrail

Info

Publication number: WO2022131326A1
Application number: PCT/JP2021/046501
Authority: WO
Inventors: 洋介平山; 明司下村; 太紀杉浦
Original assignee: 株式会社Magic Shields
Priority date: 2020-12-16
Filing date: 2021-12-16
Publication date: 2022-06-23
Also published as: JPWO2022131326A1

Abstract

Provided is a handrail characterized by comprising a base (110) having at least one protruding part, support column parts (130) erected on the base (110), and a grip part (120) attached to the support column parts (130).

Description

handrail

The present invention relates to a handrail.

In recent years, elderly people get up from their beds on their own, move to destinations such as toilets by themselves, assist in performing physical movements such as rehabilitation, maintain balance, and reduce the burden on the legs. , Movable handrails have been proposed.

Patent Document 1 discloses an impact damping cover used for a lower part of a pillar of a handrail stand, and the handrail stand itself.

Patent No. 6061786

The technique disclosed in Patent Document 1 pays attention to the fact that the handrail collides with the pillar of the handrail, particularly the lower part, when the handrail is overturned from the gripped state. On the other hand, in the first place, in order for a self-supporting handrail having such a shape to be stable and self-supporting, it is necessary to have a base having a certain weight and area, which is made of a material having a certain hardness and rigidity. For users such as the elderly, that part carries the risk of causing injuries when they fall. In addition, if the installation surface is to be narrowed, the thickness will be increased to give a certain weight, and the user's walkability will be reduced due to the occurrence of steps, and the created steps will trigger a stumbling block. May be offered.

The present invention has been made in view of such a background, and an object of the present invention is to provide a handrail that allows a user to safely store his / her weight.

The present invention provides a handrail comprising a base having at least one convex portion, a support portion erected on the base portion, and a grip portion attached to the support portion.

According to the present invention, it is possible to provide a movable handrail.

It is a figure which shows the whole image of a shock absorbing part 140. It is a figure which looked at the structural layer 10 from the side. It is a figure which shows an example of the structure of the structure 11. It is another figure which shows an example of the structure of structure 11. It is another figure which shows an example of the structure of structure 11. It is another figure which shows an example of the structure of structure 11. It is a figure which shows the structure of a pillar part 114. It is a figure which shows the example of the shape of the buckling part 115. It is a figure which shows an example of the structure of a structural layer unit 12. It is a figure which shows an example of the structure of the connection body 40. It is another figure which shows an example of the structure of a structural layer unit 12. It is another figure which shows an example of the structure of a structural layer unit 12. It is a figure which shows the structure of the structure 11a used in an Example. It is another figure which shows the structure of the structure 11a used in an Example. It is a figure which shows the structure of the pillar part 114 of the structure 11a used in an Example. It is a figure which shows the structure of the connection body 40 used in an Example. It is a schematic diagram explaining the test method of an Example. It is a figure which shows the result of the impact absorption test of an Example. It is a figure which shows one Embodiment of the handrail 1 which concerns on this invention. It is a figure which looked at one Embodiment of the board 110 from the top. It is a figure which looked at one Embodiment of the base 110 from the side. It is a figure which shows one Embodiment of the formation requirement of the convex part 1101. It is a figure which shows the modification of the base 110. It is another figure which shows the modification of the base 110. It is another figure which shows the modification of the base 110. It is another figure which shows the modification of the base 110. It is a figure which installed the shock absorbing part 140 on the base 110.

The contents of the embodiments of the present invention will be described in a list. The present invention has the following configurations.
[Item 1]
With a base having at least one protrusion,
The strut part erected on the base and
A grip portion attached to the support column and a grip portion
A handrail characterized by being equipped with.
[Item 2]
The handrail according to claim 1.
Arranging a shock absorbing part on the board,
A handrail that features.
[Item 3]
The handrail according to

claim

1 or 2.
The linear convex portion is formed on the substrate,
A handrail that features.
[Item 4]
The handrail according to claim 2.
The shock absorbing portion has a convex portion and has a convex portion.
The convex portion of the shock absorbing portion is fitted into the concave portion formed by the convex portion of the substrate.
A handrail that features.
[Item 5]
The handrail according to claim 1.
The base is bent at the end to form the convex portion.
A handrail that features.
[Item 6]
The handrail according to claim 5.
A shock absorbing part is arranged on the base.
The end of the shock absorbing portion should be joined to the end of the substrate.
A handrail that features.
[Item 7]
The handrail according to claim 1.
The base has a reinforcing material forming the convex portion at the end.
A handrail that features.
[Item 8]
The handrail according to claim 7.
A shock absorber is arranged on the board,
The end of the shock absorbing material should be joined to the reinforcing material.
A handrail that features.

<Details of the embodiment>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.

<Overview>
The handrail 1 according to the embodiment of the present invention includes a plurality of parts having different functions. As an example, FIG. 1 is a view of an embodiment of the handrail 1 viewed from diagonally above, and shows three basic components of the handrail 1.

The handrail 1 of the present embodiment includes a base 110, a grip portion 120, and a support portion 130 connecting the base 110 and the grip portion 120. The shock absorbing unit 140 may be provided on the base 110. In FIG. 19, the handrail 1 shows a state of being installed on the floor of a building as an example. Further, there may be one grip portion 120 on the upper portion of the strut portion 130, and one or more grip portions 120 so as to connect the middle of the strut portion 130, and the grip portion 120 is shown as a sub grip portion 121 in FIG. Further, there may be an auxiliary member that connects and fixes the base 110 and the support column 130, and the grip portion 120 and the support column 130.

Hereinafter, each member of the handrail 1 will be described in more detail.

<Base 110>
FIG. 20 is a plan view (viewed from directly above) of the base 110 of the present embodiment. FIG. 21 is a cross-sectional view taken along the line AA'of the base 110 shown in FIG. As shown in FIG. 20, the base 110 is a substantially quadrangular plate-shaped member, but the shape is not limited thereto. The length of the base 110 in the direction indicated by the arrow y can be longer than the length in the direction indicated by the arrow x. The base 110 has a convex portion 1
It is provided with 101 and a recess 1102. The convex portion 1101 is a portion that is raised from the other portion of the base 110, and the other portion is the concave portion 1102. The base 110 has a plurality of convex portions 1101.
Can be provided. The convex portion 1101 can be linear (elongated shape), and in that case, the convex portion 1101 may be formed so that its longitudinal direction is angled with respect to the longitudinal direction of the grip portion 120. The convex portion 1101 can be formed so as to be parallel to the direction of stress applied when the grip portion 120 is gripped (the lateral direction of the grip portion 120). For example, in the example of FIG. 20, the grip portion 120 is arranged parallel to the arrow x, and the convex portion 1101 is formed so as to be substantially perpendicular to the grip portion (parallel to the arrow y). As shown in FIGS. 20 and 21, the convex portions 1101 are arranged at equal intervals, but the intervals are not limited thereto. Further, by providing the convex portion 1101, the base 110 has a portion that can be seen from the upper surface of the base 110 (a portion that can be seen when the base 110 is viewed from directly above, the same applies hereinafter) to the lower surface (a portion that can be seen when the base 110 is viewed from directly below).
The length of the line drawn perpendicular to (the same applies hereinafter) is not constant, and the vertical thickness is particularly high at the place where the ridge of the convex portion 1101 occurs (for example, the portion indicated by p in FIG. 21). Will be longer. Since the vertical thickness of the base 110 is not constant, the base 110 has higher rigidity in the direction indicated by y in FIG. 20 than a plate made of the same material and having a constant vertical thickness. As a result, even if the base 110 is made of a thin material, high stability can be realized, and the base 11 can be realized.
It leads to making 0 lighter and makes it easier to move. Further, the board 110 includes a plurality of mounting portions 1103 on which the support columns 130 are erected. FIG. 20 shows the mounting portion 1103a and the mounting portion 1.
It is assumed that the support column 130 is erected on 103b and the grip portion 120 is arranged on the support column 130. The grip portion 120 may be arranged on one or more sides, for example, the mounting portion 1103a and the mounting portion 1.
In addition to 103b, a support column 130 is also erected on the mounting portion 1103d, and the grip portion 120 is connected so as to connect the mounting portion 1103a and the mounting portion 1103b, and the mounting portion 1103b and the mounting portion 1103d.
Is installed, the rigidity is further increased in the y direction of FIG. 20. In addition, the base 110 and the support column 1
30 is a vertical and horizontal force applied to the support column 130 through the grip portion 120.
Any connection method may be used as long as it is transmitted to the base 110 and the support column 130 is connected so as not to swing 360 degrees at any angle when viewed from above due to the rigidity of the base 110.

Further, FIG. 22 is a view showing a part of the handrail 1 from directly above. In FIG. 22, when the convex portion 1101 is formed in a linear shape, the convex portion 1101 is vertically lowered from the outermost line of the grip portion 120 to form the base 11.
The line 120a formed at the point where it collides with 0 and the angle α formed by one of the convex portions 1101 may be 0 degrees or more and 180 degrees or less, and as the angle α approaches 90 degrees, the base 110 is formed with the same thickness. When you do, the rigidity increases. In other words, as the angle α approaches 90 degrees, the thickness of the substrate 110 required to achieve the same rigidity can be reduced. The angle α needs to have a rigidity of a certain strength in the direction shown by y in FIG. 20, and is preferably larger than 0 degrees and smaller than 180 degrees.

Further, the base 110 of the present embodiment may form a convex portion by bending the end portion thereof, as shown in FIG. 23 as an example. FIG. 23 (b) shows the base 11 with the end bent.
It is a top view of 0, and FIG. 23 (a) is a cross-sectional view taken along the line BB'of the base 110. Of the ends of the base 110, each of the two ends (sides) that are at an angle (substantially perpendicular to the example of FIG. 23) with respect to the grip portion 120 can be bent. In FIG. 23A, when the angle formed by the portion in contact with the floor and the bent portion when the base 110 is bent is β, β is larger than 0 degrees and 180 degrees or less (with the surface 11002 in FIG. 23). It may be in the range of the state where the surface 11003 is attached). Further, the end portion of the substrate 110 may be bent a plurality of times. Foundation 1
The sides of the 10 may be bent at different angles.

Further, as shown in FIG. 24, the base 110 of the present embodiment may have a reinforcing material on the upper surface side or the lower surface side thereof to increase the rigidity. FIG. 24 (b) is a top view of the base 110 when the reinforcing material is provided, and FIG. 24 (a) is a sectional view taken along the line CC'. The reinforcing material is the convex portion 11
Functions as 01. The reinforcing material may be linear (elongated shape), and in that case, the reinforcing material can be arranged so that the longitudinal direction of the reinforcing material is angled with respect to the longitudinal direction of the grip portion 120. As shown in the example of FIG. 24, the reinforcing member can be arranged so that its longitudinal direction is substantially perpendicular to the longitudinal direction of the grip portion 120 (parallel to the direction of the arrow y). The reinforcing material can be provided at the end of the base 110, but may be arranged at other places.

Further, the base 110 of the present embodiment may be partially three-dimensionally processed to form the convex portion 1101 or the concave portion 1102, as shown in FIG. 25 as an example. FIG. 25 is a view of the base 110 as viewed from above. In FIG. 25, the base 110 has a circular convex portion 1101 formed as an example. A straight line (eg, DD') parallel to the direction perpendicular to the direction of stress when the grip 120 is gripped (ie, the longitudinal direction of the grip 120) always passes through one or more convex portions 1101. The convex portion 1101 can be provided as described above. As a result, the rigidity is higher than that of a plate made of the same material and having a constant vertical thickness. Further, a surface (a surface composed of a two-dot chain line; a two-dot chain line overlapping with the end of the base 110) formed by connecting the uplift start points of the convex portions 1101 that hang on or near each end of the base 110. Is written outside the edge for visualization, but is considered to overlap the edge.) If you draw a straight line that passes through any point inside, be sure to pass through one or more convex portions 1101. When the convex portion 1101 is arranged, the rigidity is higher than that of a plate made of the same material and having a constant vertical thickness, in addition to the longitudinal direction of the grip portion 120. note that,
In this case, even if the convex portion 1101 is recessed to form the concave portion 1102, the rigidity is higher than that of a plate made of the same material and having a constant vertical thickness. Further, as an example, the convex portion 1101
However, the convex portion 1101 is not limited to a closed shape such as a polygon, and a part of the convex portion 1101 may reach the end portion of the base 110 due to the wave shape shown as an example in FIG. 26. Furthermore, they do not have to be all the same shape and size. In the example shown in FIG. 26, the concave portion 1102 is formed by one convex portion 1101.

Further, the base 110 of the present embodiment may be combined with several shapes of the convex portion 1101 or the swelling 1102 described above.

The base 110 of the present embodiment is made of a rigid material. The material that constitutes the base 110 is
As an example, a metal such as iron, a synthetic resin, or the like may be used, but the present invention is not limited thereto.

The shock absorbing portion 140 can be arranged on the base 110 so that the shock absorbing portion 140 has a convex portion and the convex portion of the shock absorbing portion 140 projects downward in the vertical direction. In this case, the convex portion 1 is inserted so that the convex portion of the shock absorbing portion 140 is inserted into the concave portion 1102 of the base 110.
101 can be placed. As a result, sliding of the shock absorbing portion 140 on the base 110 can be suppressed.

Further, the shock absorbing portion 140 can be arranged on the base 110 so that the shock absorbing portion 140 has a concave portion and the concave portion of the shock absorbing portion 140 opens downward in the vertical direction. In this case, the convex portion 1101 can be arranged so that the convex portion 1101 of the base 110 is inserted into the concave portion of the shock absorbing portion 140. As a result, sliding of the shock absorbing portion 140 on the base 110 can be suppressed.

<Grip part 120>
The grip portion 120 of the present embodiment is a handrail portion that the user grips when standing up or walking. It is almost parallel to the place where it is installed (floor surface, etc.). The grip portion 120 has a structure that is easy for a person to grip, and the cross section of the grip portion 120 includes, but is not limited to, a circular shape, an elliptical shape, a polygonal shape, and a combination of a circular / elliptical shape and a polygonal shape. .. In addition, the grip portion 120
In the support column 130, the force applied to the grip portion 120 from the vertical upward direction to the downward direction is applied to the support column portion 13.
Any connection method may be used as long as the connections are distributed to 0.

As an example, the grip portion 120 of the present embodiment is connected to the strut portion 130 by an L-shaped contact member. The strut portion 130 is attached to both ends of the grip portion 120 by using contact members. The specific configuration example of such a contact member is not limited to the L-shaped structure, and various structures can be adopted.

As an example, the grip portion 120 of the present embodiment may be connected to the upper end of the strut portion 130 by a fixing member connecting a part of the grip portion 120. In this case, the grip portion 120 is the strut portion 1.
It is attached to 30 via a fixing member. The place where the fixing member is attached is
It is not limited to the upper end of the support column 130. As a specific configuration example of such a fixing member, various structures can be adopted.

As an example, the grip portion 120 of the present embodiment has the strut portion 1 in addition to the upper end of the strut portion 130.
There may be a plurality of them in the middle of 30. In that case, the intermediate fixing member is attached to the two strut portions 130, and the grip portion 120 is attached to the strut portion 130 via the intermediate fixing member. In addition, various structures can be adopted as a specific configuration example of such an intermediate fixing member.

The grip portion 120 of the present embodiment may be capable of connecting and fixing the grip portions 120 of the two handrails 1 arranged adjacent to each other. In this case, as an example, the structure of one end of the grip portion 120 and the structure of the other end are fitted and fixed by a male-female structure or the like. note that,
An auxiliary device for connecting the grip portions 120 to each other may be used, or the grip portions 120 may be connected by the attractive force of magnets attached to both ends of the grip portions 120, and the present invention is not limited thereto.

As an example, the grip portion 120 of the present embodiment is made of a rigid material such as metal. In addition, it may be formed of synthetic resin, wood, or the like, but is not limited to this.

<Strut part 130>
The strut portion 130 of the present embodiment is a portion to which a force applied to the grip portion 120 is applied, and the base 11
It is erected at 0. It is almost perpendicular to the place where the handrail 1 is installed (floor surface, etc.). The cross section of the support column 130 includes, but is not limited to, a circle, an ellipse, a polygon, and a combination of a circle / ellipse and a polygon.

The support column 130 of the present embodiment may be configured so that the height can be adjusted. As an example, the strut portion 130 is composed of a plurality of members having different thicknesses, and a strut member thinner than the strut member is stored in the thickest strut member, and the thin strut member is pulled up and fixed. Adjust the height of the strut 130. The configuration for adjusting the height is not limited to the configuration described in the present specification.

As an example, the support column 130 of the present embodiment is made of a rigid material such as metal. In addition, it may be formed of synthetic resin, wood, or the like, but is not limited to this.

The handrail 1 of the present embodiment may have a shock absorbing portion 140 installed on the upper side of the base 110.

The shock absorbing portion 140 may be, but is not limited to, a sponge, a urethane mat, a carpet, or the like.

The shock absorbing unit 140 may be installed at any place above the board 110.

Further, the shock absorbing portion 140 can be arranged on the base 110 so that the shock absorbing portion 140 has a convex portion and the convex portion of the shock absorbing portion 140 projects downward in the vertical direction. In this case, the shock absorbing portion 140 can be installed so that the convex portion of the shock absorbing portion 140 is inserted into the concave portion 1102 of the base 110. As a result, sliding of the shock absorbing portion 140 on the base 110 can be suppressed.

The shock absorbing portion 140 can be arranged on the base 110 so that the shock absorbing portion 140 has a concave portion and the concave portion of the shock absorbing portion 140 opens downward in the vertical direction. In this case, the shock absorbing portion 1 is inserted so that the convex portion 1101 of the base 110 is inserted into the concave portion of the shock absorbing portion 140.
40 can be installed. As a result, sliding of the shock absorbing portion 140 on the base 110 can be suppressed.

As an example, the impact absorbing unit 140 of the present embodiment includes a structural layer 10 having a main function of absorbing impact, an intermediate layer 20 having an effect of smoothing the unevenness of the structural layer 10, and an intermediate layer 20 having an effect of smoothing the unevenness of the structural layer 10.
It is composed of an upper layer 30 that enhances walkability and has basic functions as a floor such as decorativeness, slipperiness, waterproofness, and abrasion resistance.

As an example, the structural layer 10 of the present embodiment forms a lower layer of the shock absorbing portion 140 and has a structure as shown in FIG. FIG. 2 is a side view of the structural layer 10 as an example. The structural layer 10 is
A new structure 11 having a shock absorbing ability is a basic unit, and a plurality of structures 11 are provided at adjacent positions.

The structure and function of the structure 11 of the present embodiment will be described.

As an example, the structure 11 of the present embodiment is based on a weight platform-like structure. An example of the structure of the structure 11 is shown in FIG. FIG. 3A is a view of the structure 11 as viewed from the side. FIG. 3 (b)
Is a view of the structure 11 viewed from diagonally above. FIG. 3C is a view of the structure 11 as viewed from directly above. FIG. 3D is a view of the structure 11 as viewed from directly below.

FIG. 4 is a side view of the structure 11, and the lines that cannot be seen from the surface are shown by broken lines. In addition, the auxiliary line for use in the explanation is shown by a one-dot broken line, and the position of the length and angle of each part (the auxiliary line is shown by the one-dot broken line) is shown. Although an example of the structure 11 of the present embodiment is described in FIG. 3 as a quadrangular pyramid having a square bottom surface, it may be a weight platform-like structure having another polygonal bottom surface. In particular, a hexagonal pyramid with a hexagonal bottom, which is known to have constant rigidity in all directions in a horizontal plane, is even better.

Each part of the structure 11 of this embodiment will be described with reference to FIG. The structure 11 is a portion in contact with a structure such as a floor or the ground, and is substantially parallel to the portion to be installed.
The upper surface portion 11 which is a portion that receives a load when a person walks and is substantially parallel to the installation portion 111.
2. Exists in the wall surface portion 113 constituting the wall surface of the weight stand, the pillar portion 114 which is a pillar portion connecting each corner of the corresponding upper surface portion 112 from each corner of the square of the installation portion 111, and the pillar portion 114. There is a buckling portion 115 and the like. If the installation portion 111 and the upper surface portion 112 are connected by the pillar portion 114, the wall surface portion 113 is not essential. Further, the installation portion 111, the upper surface portion 112, and the wall surface portion 113.
, Although it is described as a separate part from the pillar portion 114, since the structure 11 is assumed to be manufactured integrally, each of the installation portion 111, the upper surface portion 112, the wall surface portion 113, and the pillar portion 114. Although the contacts are connected as one, they may be manufactured as separate parts and connected with an adhesive or parts to form the structure 11.

Each part of the structure 11 of the present embodiment is defined in FIG. In FIG. 4, the structure 1
The height of 1 is the height h1. The width of the installation portion 111 is w1 and the thickness is t1. The width of the upper surface of the upper surface portion 112 is the width w3, and the thickness is the thickness t2. The wall surface portion 113 and the pillar portion 114 have a thickness t3. From the bottom of the installation portion 111 to the deepest portion of the recess of the buckling portion 115 (in FIG. 7, there are two points of contact between the extension line of the side 114a and the surface passing through the side 114b and the surface constituting the recess of the buckling portion 115. It is indicated by a chain line, and refers to the position where the straight line drawn perpendicular to the two-dot chain line is the longest from the extension line of the side 114a. The same applies to FIG. The width of the bent portion 115 is the width L1. Further, the length of the inner side of the bottom surface of the installation portion 111 is set to the width w2.
And. The pillar portion 114 is basically a square pillar having a width of t3 on one side, but is not limited to this, and the place where the installation portion 111 and the intermediate layer 20 are in contact with each other has a structure that is scraped off in substantially parallel. Further, in FIG. 4, the angle formed by the installation portion 111 and the pillar portion 114 is defined as θ1.

The pillar portion 114 of the structure 11 of the present embodiment is further defined with reference to FIG. 7. FIG. 7 is a diagram showing a pillar portion 114 of the present embodiment. The width of the buckling portion 115 is the width L1. Further, the side of the corner of the pillar portion 114 (the side extending from the corner of the upper surface portion 112 (for example, 112b in FIG. 6) toward the installation portion 111 (for example, 111c in FIG. 6)) below the buckling portion 115. Is a side 114a, and the inner side is a side 114b. At this time, a line drawn from an arbitrary point on the side 114a at an equidistant distance from the side surface 114c facing the outside of the pillar portion 114 and the side surface 114d and perpendicular to the side 114b corresponds to the thickness of the pillar portion 114 and has this length. Is a thickness t4. Further, the length of the line drawn vertically from the deepest portion of the buckling portion 115 to the side 114a is defined as the thickness t5.

The installation portion 111 of the present embodiment is substantially parallel to the installation portion and is in contact with the installation portion.
The parts to be installed are floor slabs, floors with flooring and vinyl chloride installed on them, floors with raised floors, etc., floorboards for wooden structures, places where tatami mats are installed above them, and the ground. However, it is not limited to this as long as it is a place where people walk. In addition, although it is described in FIG. 3 that the installation portion 111 of this embodiment has only a frame portion, a gap is provided in the upper surface portion 112 and the wall surface portion 113, and the structure is formed when a load is applied to the upper surface portion 112. As long as the air can escape so that the body 11 can be deformed, the installation portion 111 may block the bottom of the structure 11, or even if a part of the body 11 is provided with a gap so that the air can escape. good.

Further, in order to prevent the structural layer unit 12 (details will be described later) from shifting after installation, the bottom surface of the installation portion 111 is made uneven, and an adhesive material such as a double-sided seal is attached.
You may devise such as increasing the frictional force with the part to be installed. The structure 11 is manufactured integrally with the other adjacent structures 11 at the installation portion 111, and forms a structural layer unit 12 composed of a plurality of structures 11, but the structures 11 are separated from each other. The structural layer unit 12 may be formed by adhering or connecting with parts after manufacturing.

In the installation portion 111 of the present embodiment, the width w1 may be 5 mm or more, and if it is 10 mm or more, the manufacturing cost can be kept low, and if it is 20 mm or more, it can be stored in the height h1 that is easy to construct. Further, if it is 25 mm or more, no matter which part of the structural layer unit 12 the trochanteric portion of the femur is struck, impact absorption can be performed by the four structures 11 on average, and the function of preventing fracture is provided. It will increase. Further, the width w1 may be 100 mm or less, further 80 mm or less can keep the manufacturing cost low, further 50 mm or less can be contained in the height h1 which is easy to construct, and further 35 mm or less. No matter which part of the structural layer unit 12 the trochanteric part of the femur is struck, on average four structures 1
Impact absorption can be performed in step 1, and the function of preventing fractures is enhanced.

The upper surface portion 112 of the present embodiment is substantially parallel to the installation portion 111, and by superimposing the intermediate layer 20 and the upper layer 30 on the upper portion thereof, the upper layer 30 and the upper layer 30 are applied when a load is applied from above by walking or the like. It is a portion that directly receives a load through the intermediate layer 20. In addition, in FIG. 3, the upper surface portion 11
2 is described so that there is no unevenness, but if the intermediate layer 20 and the upper layer 30 are overlapped on the upper portion, there are irregularities and holes, and when the structure 11 is deformed from the voids. It may be designed so that the air inside can escape.

FIG. 5 is a side view of the structure 11, and FIG. 6 is a view of the structure 11 from above (a) and a view of the structure 11 from below (b). Here, the upper surface (referred to as the surface 112a) of the upper surface portion 112 shown by the diagonal line in FIG. 6A is a square having a width w3 on one side, and the point at the corner is a point 112b. Further, in FIG. 6B, the lower surface of the upper surface portion 112 (referred to as the quadrangle in the center in the drawing, the surface 112c).
Is a square having a width w4 on one side (assuming that the corner of the surface below the upper surface portion 112 is a point 112d, the length of the surface 112c adjacent to the point 112d is the width w4). .. Further, FIG. 6 (
The inside of the bottom surface (referred to as the surface 111a) of the installation portion 111 indicated by the diagonal line in b) has a width w2 on one side.
(Assuming that the inner corner of the installation portion 111 is a point 111b, the surface 111a adjacent to the point 111b
It is a square with a width w2) with other corners. At this time, the relationship of Equation 1 holds in order to exert the shock absorbing ability. Further, when no load is applied to the structure 11, the 112c plane appears to exist inside the 111a plane when viewed from above.

[Equation 1]

Further, θ1 may be in the range where Equation 1 holds, and when it is in the range of 80 degrees or more and less than 90 degrees, the high impact absorption of the structure 11 is exhibited, and when it is in the range of 83 degrees to 87 degrees.
The angle between the line vertically lowered from the knee during walking and the line connecting the knee and heel is approximately 5 degrees (Non-Patent Document 1).
), Therefore, the structural stability of the structure 11 can be accurately ensured against the impact force due to walking.

As in the structure 11 of the embodiment described later, each portion shown in FIGS. 3 to 8 may have an arcuate curved surface, and for example, the surfaces 111a, 112a, and 112c may not be square. In that case, for example, each side of the surface 111a is extended, and the intersection thereof is the point 111b.
It should be regarded as. Similarly, the points 112b and 112d may extend each side of each surface, and the intersection may be regarded as the point.

The wall surface portion 113 of the present embodiment constitutes four wall surfaces of a pyramid that are not horizontal to the ground. Although the wall surface portion 113 is a portion where a load applied to the upper surface portion 112 is applied, the corresponding corners of the installation portion 111 and the upper surface portion 112 are connected by the pillar portion 114, and the pillar portion 114 has sufficient strength to receive the load. For example, the wall surface portion 113 is not essential.

The pillar portion 114 of the present embodiment connects the corners of the installation portion 111 and the upper surface portion 112. At the top of the side 114a, the buckling portion 115 is present in the form of a deletion of a part of the pillar portion 114.

The buckling portion 115 of the present embodiment exists in the pillar portion 114 and is a portion that plays a central role in shock absorption. As shown in FIG. 7, due to the presence of the buckling portion 115, the periphery of the buckling portion 115 is thinner than the pillar portion 114, and therefore, when a constant load is applied to the upper surface portion 112, At the buckled portion 115, the column portion 114 bends toward the inside of the structure 11.

Further, as shown in FIG. 7, the deepest portion (deepest portion) of the buckling portion 115 of the present embodiment.
Is located near the center of the buckling portion 115. The two-dot broken line shown in FIG. 7 is a portion where the surface passing through the side 114a and the side 114b is in contact with the buckling portion 115, and the deepest portion of the buckling portion 115 exists on the two-dot broken line. If the length of the line drawn perpendicular to the side 114a and the side 114b is the thickness t4, and the length of the line drawn down perpendicular to the side 114b from the deepest part of the buckling portion 115 is the thickness t5, Equation 2
Is true.

[Equation 2]

Further, in FIG. 4, the height h2 is set as the distance from the bottom surface of the installation portion 111 of the present embodiment to the deepest portion of the buckling portion 115, but the equation 3 holds. That is, the deepest part of the buckling portion 115 exists at a position half and below half the height of the structure 11. As a result, when a constant load is applied to the upper surface portion 112, the column portion 114 tends to bend toward the inside of the structure 11 at the buckling portion 115.

[Equation 3]

The deepest portion of the buckling portion 115 may exist in a compartment including both ends of the second compartment from the bottom when the height h1 is divided into four equal parts. In this case, the deepest portion of the buckling portion 115 may be present. Since a sufficient distance can be obtained from the pillar portion 114 to the upper and lower ends of the pillar portion 114, the structure 11 is sufficiently sunk at the time of bending, and it is easy to absorb the impact. Further, the deepest part of the buckling portion 115 is 2 from the top when the height h1 is divided into four equal parts.
It may exist in a compartment including the upper end of the second compartment, in which case the buckling portion 11 as above.
Since a sufficient distance can be obtained from the deepest portion of No. 5 to the upper and lower ends of the pillar portion 114, the structure 11 sufficiently sinks at the time of bending, and it is easy to absorb the impact.

As shown in FIG. 8, the buckling portion 115 may have a linearly cut shape (FIG. 8a) or a curved surface cut shape (FIG. 8b). .. Also, the buckling part 1
There may be some concave shapes (FIG. 8c) in 15. Even when a plurality of concave shapes exist, the equation 3 holds in the deepest portion of the uppermost concave shape. Further, the concave shape does not have to be targeted in the vertical direction (FIG. 8d). Further, although not shown, the concave shape may not be targeted in the left-right direction.

Further, the deepest part of the buckling portion 115 does not have to be one point, may be a plurality of points, or may be continuously present. When there are a plurality of deepest buckling portions 115 continuously, [0038] and [0038]
The deepest part to be the target of [0039], [0040], and [0050] refers to the point of the deepest part on the uppermost side.

Since the structure 11 is made of a resilient material, it can return to its original shape when the load is removed after being loaded. The material is made of, for example, an elastomer or a sponge, and may be made of NR rubber as an example. When the structure 11 is made of NR rubber, the rubber hardness may be in the range of 10 to 100, and the balance between the shock absorbing ability and the stability during walking is enhanced in the range of 50 to 80.

The structure 11 of the present embodiment shown in FIGS. 3 to 8 does not have to be composed entirely of straight lines as a modification. For example, each part described linearly may draw an arc. As a result, if the point or side used in the explanation does not exist, the straight line defining the point or side may be extended and the intersection may be regarded as the point or side.

FIG. 9 is a view of the structural layer 10 of the present embodiment as an example from above. As an example, the structural layer 10 of the present embodiment is unitized in a square shape in which a plurality of structures 11 are arranged side by side as shown in FIG. 9, and the unit (referred to as a structural layer unit 12). Is used by laying it on a structure such as a floor or on the ground.

Further, as an example, the structural layer unit 12 prevents displacement after being installed, and even when the structural layer unit 12 is spread, it exhibits a certain impact absorbing ability regardless of the site. Therefore, FIG. 1
You may connect using the connecting body 40 which shows an example in 0. It has a structure that fits into one or more structures 11 existing in different structural layer units 12. As a result, the connecting body 40 becomes
The force applied in the horizontal direction to the structure 11 forming one structural layer unit 12 can be dispersed to the structure 11 forming another adjacent structural layer unit 12.

In the structural layer unit 12, since a plurality of structural layer units 12 are connected by the connecting body 40, it is sufficient that the number of structures 11 attached to one side is two or more, and if five or more, the structure is manufactured and installed. It leads to cost reduction, and if it is 10 or more, it leads to further reduction of manufacturing and installation costs.

Further, the structural layer unit 12 may have a rectangular shape by changing the number of structures 11 attached to each side, as shown in FIG. 11, according to the shape of the place where the structural layer unit 12 is installed. Further, in order to connect the units more firmly, as shown in FIG. 12, some structures 11 may be provided side by side on each side of the square or rectangle so that the adjacent unit and the unevenness fit into each other. good. Further, when laying down, the structural layer units 12 shown in FIGS. 9, 11 and 12 may be combined, or only one of them may be used.

Further, in the structural layer unit 12, all the adjacent structures 11 have the same structure and material (
It may be the same within the range of variation in manufacturing), or it may be annexed with structures 11 having different shock absorbing capacities by changing the structure and material. Further, the structure 11 may be arranged alternately in each row in a skipped manner, and the structural layer unit 12 may use another shock absorber such as a sponge in the portion of the jumping ground.

Further, the number of structural layer units 12 to be connected may be changed depending on the purpose. For example, in order to prevent fractures due to a fall that occurs when getting up at the bedside or when entering the bed, the unit is spread over a certain area of the bedside to cover a certain area in the neighborhood including a place where a fall is likely to occur. You may. Further, for example, it may be spread over the entire room, corridor, stairs, or the like.

Further, the structural layer unit 12 may be installed in an inverted state opposite to the orientation described above. In this case, the installation portion 111 is in contact with the intermediate layer 20, and the upper surface portion 112 is in contact with the floor or the like.
Further, in this case, the height of the deepest part of the buckling portion 115 in the structure 11 includes half the height of the height h1 of the structure 11 so as to approach the upper surface portion 112 in contact with the ground, and is high. It is located below half the height of h1. Alternatively, the deepest part of the buckling portion 115 may exist in a compartment including both ends of the second compartment from the bottom when the height h1 is divided into four equal parts, and includes the upper end of the second compartment from the top. It may exist in the compartment. By arranging a plurality of structural layer units 12 in the opposite directions to the directions described above and arranging the intermediate layer 20 and the upper layer 30 above them, the walking surface is continuous while maintaining the same impact absorption capacity. This has the effect of making it harder to feel unevenness and improving walking performance.

The connecting body 40 has a function of connecting the structural layer units 12 so as not to shift and lose walking ability and shock absorption even when a load is applied. The connecting body 40 is arranged so as to be in physical contact with the pillar portion 114 of each one or more structural layer units existing in the two or more structural layer units 12, and when the pillar portion 114 is bent, the connecting body 40 is formed. Through, the pillar portion 114 of the structure 11 existing in the adjacent structural layer unit 12 works to support it. Further, when the connecting body 40 is installed, the installation portion 111 is in contact with the lower surface of the connecting body 40, or the pillar portion 114 is in contact with the inner side of the lower surface of the connecting body 40.

The connecting body 40 has a function of connecting the structural layer units 12 so as not to shift and lose walking ability and shock absorption even when a load is applied. The connecting body 40 is arranged so as to be in physical contact with the pillar portion 114 of each one or more structural layer units existing in the two or more structural layer units 12, and when the pillar portion 114 is bent, the connecting body 40 is formed. Through, the pillar portion 114 of the structure 11 existing in the adjacent structural layer unit 12 works to support it.

An example of the connecting body 40 of the present embodiment is shown in FIG. Connected body 4 shown in FIG.
0 has a structure with four holes. For example, when two square-shaped structural layer units 12 shown in FIG. 9 are arranged vertically and two horizontally, a total of four corners are arranged. The structures 11 of the above are installed one by one so as to fit into the holes. As a result, although the four structural layer units 12 are independent of each other, when a load is applied to a certain structural layer unit 12 due to walking or the like and a force is applied in the horizontal direction, the adjacent structural layer unit 12 is passed through the connecting body 40. Structure 11
The force is dispersed to prevent the structural layer unit 12 itself from shifting. Based on this principle, the structure 11 forming the corner of each adjacent structural layer unit 12 is used.
If the four structural layer units 12 are connected by the connecting body 40, it is possible to create a situation in which the structural layer units 12 are not easily displaced within the range in which the structural layer units 12 are spread. In the connecting body 40, the width w41 is about twice as long as the width w1, and the width w42 is the length for which Equation 4 holds. The height h41 may be such that when the connecting body 40 is installed in the structural layer unit 12, a part of the connecting body 40 does not become higher than the surface 112a. It should be noted that a structure consisting only of the outer frame of the connecting body 40 shown in FIG. 10 may be used as in the katakana “b”.

[Equation 4]

As an example, the description of connecting the four structural layer units 12 with the connecting body 40 has been described, but in order to connect the two adjacent structural layer units 12 by the same principle, the connecting body 4 having two holes
0 may be present, or three structural layer units 12 may be connected by a three-hole connecting body 40. Further, in the case of the structural layer unit 12 having the structure as shown in FIG. 12, the protruding structure 11 may be connected by a connecting body 40 having a plurality of holes. A structure having a vertical axis and a horizontal axis, such as "S" and "T", may disperse the force applied in the horizontal direction.

Further, the connecting body 40 has a hardness sufficient to suppress the movement of the structural layer unit 12 through the pillar portion 114 of the structure 11 existing in the adjacent structural layer unit 12 through the connecting body 40 when the pillar portion 114 is bent. It is necessary and, for example, consists of resin, plastic, wood, metal and the like.

The intermediate layer 20 is arranged above the structural layer 10, and eliminates the unevenness caused by the grooves existing in the structural layer 10 to prevent the walking property from being lowered. In addition, it is responsible for the main impact absorption capacity during normal walking, and when a load is applied during walking, the structural layer 10 and the intermediate layer 20 must be thick and hard enough to sink by about 1 mm in total. However, the intermediate layer 20 is responsible for 80% or more of the subduction.
Further, the intermediate layer 20 is in contact with the upper surface portions 112 of the plurality of structures 11, and has a function of distributing the load on the structural layers 10 to some structures 11 and increasing the rigidity of the shock absorbing portion 140. It is assumed that the intermediate layer 20 is used by adhering to the upper surface portion 112 of the structure 11, but the intermediate layer 20 is not limited thereto.

The intermediate layer 20 is made of a shock-absorbing material, and may be, for example, various foaming agents such as a resilient urethane foam, a rubber sponge, polyurethane, a gel that absorbs shock, or the like.

Further, the intermediate layer 20 may not be arranged above the structural layer 10 but may be arranged so as to fill the grooves formed by the plurality of structures 11 existing in the structural layer 10 to achieve the object. In this case, if the intermediate layer 20 is made of a material having the same rigidity and resilience as the material forming the structure 11, the adjacent structure is passed through the intermediate layer 20 when a load is applied to a certain structure 11. Body 1
The force is distributed to 1. Further, in this case, it is possible to disperse the force to the adjacent structural layer unit 12 without using the connecting body 40, and it is assumed that the connecting body 40 is not essential. again,
In this case, the intermediate layer 20 is slightly higher than the upper surface portion 112 after being installed in the structure 11, and if the upper layer 30 is arranged, the unevenness is not visible at first glance. As a result, shock absorption can be exhibited during normal walking. Further, as the intermediate layer 20, a layer arranged on the structural layer 10 and a layer arranged so as to fill the groove may be used in combination.

Since the upper layer 30 is a walking surface and is directly exposed to the surface, it feels as a contact surface, has a certain durability against repeated walking and installation of articles, and is designed for the installation location and the purchaser. It may have functions such as anti-slip property, fire resistance, water resistance, scratch resistance, and maintainability in addition to designability that meets the taste.

The upper layer 30 is made of a rigid material having the above-mentioned function and capable of withstanding deformation at the time of a fall impact.
For example, a material such as a cushion floor made of wood, plywood, stone, vinyl chloride, tile, carpet, cork, or a long sheet may be used.

The intermediate layer 20 and the upper layer 30 may be integrated. For example, some commercially available flooring materials, tile carpets, and the like have both the functions of the intermediate layer 20 and the upper layer 30, and these may be arranged above the structural layer 10.

(Floor material unit used for the test)
The structure 11 used in the test is referred to as a structure 11a and is shown in FIG. FIG. 13A is a view of the structure 11a as viewed from the side. FIG. 13B is a view of the structure 11a viewed from diagonally above. FIG. 13C is a view of the structure 11a as viewed from directly above. FIG. 13D is a view of the structure 11a as viewed from directly below. Further, the pillar portion 14 of the structure 11a is shown in FIG. note that,
The structural layer unit 12 formed from the structure 11a is referred to as a structural layer unit 12a.

The numerical values of each part of the structure 11a are described below. In FIG. 14, the width w1 is 30 mm.
Width w2 is 23 mm, width w3 is 20 mm, width w4 is 18 mm, width w5 is 1 mm, height h1 is 20 mm, height h2 is 10 mm, thickness t1 is 3 mm, thickness t2 is 1.5 mm, thickness t3 is 1 mm, and width. L1 is 5 mm. The material was composed of thermoplastic elastomer. The structure 1
A structural layer unit 12a in which 10 1a were arranged in a square shape on one side was manufactured. The structural layer unit 12a has a width of 300 mm and a height of 20 mm together with the height h1.

As the intermediate layer 20, a sponge containing PVC having a thickness of 4.5 mm was used.

For the upper layer 30, a long sheet having a soft vinyl layer having a thickness of 2 mm was used.

The structure of the connecting body 40 used in the test is shown in FIG. The width w41a of the connecting body 40 is 60 mm.
The width w42a was 24 mm, the height h41a was 3 mm, and the material was polypropylene.

The connecting body 40 was arranged so as to straddle one structure 11a at each corner of the four structural layer units 12a, and the structural layer units 12a were connected. On top of that, the middle layer 20 and the upper layer 3
The test floor material unit 13 is a unit that is stacked and fixed in the order of 0.

(Test method)
The study was designed to reproduce the situation in which a person weighing 40 kg falls from an upright position and hits the trochanteric part of the femur against the floor.

As shown in FIG. 17, the jig 50 was attached to the installation portion 111 side of the test floor material unit 13, so that the weight was 11 kg. Further, the accelerometer 80 was installed on the jig 50 at two distances. Turn over the entire test floor material unit 13 to which the jig 50 is attached, and the height is 230 m.
Free fall from m. Simulated femur 6 at the place where the central part of the test floor material unit 13 falls
0 was set. A strain gauge 70a (6-axis load cell) and a strain gauge 70b (1-axis load cell) are attached to both the trochanteric side and the distal end of the simulated femur, and the test floor material unit 1
Strain gauge 70a and strain gauge 7 apply stress to the simulated femur due to the fall of 3
Measurement is performed using 0b (proximal load is measured with the strain gauge 70a, and distal load is measured with the strain gauge 70b), and the impact force (N) applied to the simulated femoral bone is measured. Instead of the test floor material unit 13, general flooring is used as a control with low impact absorption capacity.
A similar test was performed.

FIG. 18 shows the test results of the shock absorption capacity. The horizontal axis shows the elapsed time (mS) after the impact is applied to the simulated femur, and the vertical axis shows the load (kN) applied to the simulated femur. In the test using the flooring, the load is 2000 from 12 ms after the flooring comes into contact with the simulated femur.
After exceeding N and 14.5 ms, the load exceeded 3000 N and peaked, and from 18.5 ms, the load fell below 2000 N. On the other hand, in the test floor material unit 13, the load peaked after 23 ms, but the value was much lower than 2000 N, and the load applied to the simulated femur did not exceed 2000 N.

In Non-Patent Document 2, the load applied to the surface of the femur is about 7 of the load applied to the surface of the body.
It has been reported that it is 0%. Further, in Non-Patent Document 3, there is a report that the femur of a 73-year-old man can be fractured at about 2000 N.

Considering the data of Non-Patent Document 2 and Non-Patent Document 3, the results of the examples are that the flooring is loaded with a load that can cause the femur to fracture during a fall, and the test floor material unit 13 has a fracture of the femur during a fall. It was proved that it absorbed the impact to the extent that it did not. Similar data are obtained when another position of the test floor material unit 13 is brought into contact with the simulated femur, and the femur does not fracture at any position of the test floor material unit 13 when it falls. It can be said that it absorbs the impact of.

For this embodiment, the shock absorbing unit 140 is arranged on the base 110. As an example, FIG. 26 is a diagram in which the shock absorbing portion 140 is arranged on the upper side of the base 110. The shock absorbing portion 140 may be arranged at an arbitrary position on the upper surface of the base 110, or the upper surface portion 112 may be used by being adhered to the base 110. Further, since the shock absorbing portion 140 of the present embodiment has a convex shape, the convex shape may be arranged so as to be inserted into the concave portion 1102 of the base 110. As a result, sliding of the shock absorbing portion 140 on the base 110 can be suppressed.

Further, in the present embodiment, in the case where rigidity is obtained by bending the end portion of the base 110, which is shown as an example in FIG. 23, the shock absorbing portion 140 is on the upper surface side (1100) of the base 110.
In addition to 3), the end of the bent part (11001) and the base 1 at the bent part 1
It may be adhered to any one or more of the upper surface side (11002) of 10. Further, in the case of attaching the reinforcing material to the base 110, which is shown as an example in FIG. 24, the shock absorbing portion 140 is a part of the reinforcing material (for example, 11004) in addition to the upper surface side (11005) of the base 110. It may be adhered to one or more of the above.

It should be noted that each member of the present embodiment described above may not be all formed of a straight line as a modification. For example, each part described linearly may draw an arc. As a result, if the point or side used in the explanation does not exist, the straight line defining the point or side may be extended and the intersection may be regarded as the point or side.

Furthermore, the embodiments described above are merely examples for facilitating the understanding of the present invention, and are not intended to limit the interpretation of the present invention. It goes without saying that the present invention can be modified and improved without departing from the spirit thereof, and the present invention includes its equivalents.

1 Handrail 10 Structural layer 11 Structure 12 Structural unit 13 Test floor material unit 20 Intermediate layer 30 Upper layer 40 Connecting body 50 Jig 60 Simulated thigh bone 70 Strain gauge 80 Accelerometer 111 Installation part 112 Upper surface part 113 Wall layer 114 Pillars Part 115 Buckling part 110 Base 1101 Convex part 1102 Concave part 1103 Mounting part 120 Grip part 130 Strut part 140 Shock absorber

Claims

With a base having at least one protrusion,
The strut part erected on the base and
A grip portion attached to the support column and a grip portion
A handrail characterized by being equipped with.
The handrail according to claim 1.
Arranging a shock absorbing part on the board,
A handrail that features.
The handrail according to claim 1 or 2.
The linear convex portion is formed on the substrate,
A handrail that features.
The handrail according to claim 2.
The shock absorbing portion has a convex portion and has a convex portion.
The convex portion of the shock absorbing portion is fitted into the concave portion formed by the convex portion of the substrate.
A handrail that features.
The handrail according to claim 1.
The base is bent at the end to form the convex portion.
A handrail that features.
The handrail according to claim 5.
A shock absorbing part is arranged on the base.
The end of the shock absorbing portion should be joined to the end of the substrate.
A handrail that features.
The handrail according to claim 1.
The base has a reinforcing material forming the convex portion at the end.
A handrail that features.
The handrail according to claim 7.
A shock absorber is arranged on the board,
The end of the shock absorbing material should be joined to the reinforcing material.
A handrail that features.