JPH07164583A - Impact absoring board - Google Patents

Abstract

PURPOSE:To increase no weight even when rainwater is permeated and generate no odor following the decomposition of rainwater by setting and fixing in parallel bar-shaped pieces composed of closed-cell bodies between sheets composed of closed-cell bodies facing each other in a manner of interposing and bonding together with spaces. CONSTITUTION:An impact absorbing board B is constituted of cylindrical bodies 4 of same diameter and of same length as the vertical length of sheets 1 and 2 are set and fixed in parallel between two sheets 1 and 2 composed of closed- cell bodies facing one another. The cylindrical bodies 4 are interposed between both sheets 1 and 2 in a manner in which side faces facing one another are brought into contact with and adjacent to, and bonded together by a conventional method such as heat fusion bonding, bonding by a binder or the like. Spaces 3 as air layers are formed among both sheets 1 and 2 and the cylindrical bodies 4 on the impact absoring board B and also in the inner diameters of the cylindrical bodies 4 respectively. Pillar bodies 5 of the same material are interposed and bonded together along the both side edges in the vertical length direction of the sheets 1 and 2.

Description

Detailed Description of the Invention

[0001]

INDUSTRIAL APPLICABILITY The present invention can be installed in advance in a place where there is a risk that a person may inadvertently jump in and injure in a ski slope, athletic gym, and other various exercise facilities and leisure facilities. The present invention relates to a multipurpose shock absorbing board that can be used as a board for preventing jumping in or crashing, or as a cushioning material along a wall surface that may be injured by crashing.

[0002]

2. Description of the Related Art Conventionally, for example, urethane foam is sewn in a bag shape from the viewpoint of preventing accidents caused by an accidental collision by a skier or a competitor on a ski slope, athletic gym, other exercise facility, leisure facility, etc. The shock-absorbing board stored in the product is wound around the ski lift column, or fixed vertically in the dangerous area, or installed along the hard wall surface to prevent injury due to its cushioning effect. Is being pursued.

As such an impact absorbing board, in addition to the urethane foam described above, a laminated product obtained by laminating an elastic body of a rubber sheet or a closed cell foam body to a certain thickness is housed in a bag-shaped sewn product. Has been done.

However, in the case where the urethane foam, which is mainly used for shock absorbing boards at present, is housed in a bag-shaped sewn product, since the urethane foam itself is a porous product having open cells and has a soft property, At the time of collision, a so-called bottoming risk appears, which requires the urethane foam to be formed to a considerable thickness, and has a defect that the product is complicated and time-consuming to carry due to its bulkiness.

Further, when a bag-shaped sewn product containing urethane foam is torn or broken due to impact or the like, water may infiltrate from the damaged portion due to rainfall or the like,
As a result of water retention with urethane foam, the weight of the shock absorbing board itself increased significantly, making it very difficult to transport and install.Furthermore, when the shock absorbing board was not used during season off etc., it was stored in a warehouse etc. In this case, there is a problem that the rainwater retained by the urethane foam rots over time, and a voluminous odor is generated. Therefore, the appearance of various improved products is awaited.

In order to eliminate the defects of the shock absorbing board due to the open-cell foam such as urethane foam, the laminated product made of the elastic body of the rubber sheet and the closed-cell foam is housed in the bag-shaped sewn product. However, a shock absorbing board using such a material has a property of extremely high impact resilience even if it is possible to eliminate the provisional decree, the increase in weight of the board itself and the bad odor caused by decay. Therefore, there is a problem in so-called buffering property, and it is not a board that can safely absorb shock, and it is regrettable that it has a risk of bruising or whiplash depending on the shock condition.

[0007]

However, the shock absorbing board proposed by the present invention has been eagerly developed in view of the above-mentioned conventional defects, and the shock absorbing board itself has a water retention property. Since the bag-shaped sewn product is damaged and rainwater does not enter, there is no increase in weight, and no odor is generated due to the decay of rainwater, providing a shock absorbing board that is easy to carry and install. The purpose is to do.

Since a space is always present in the shock absorbing board at the time of a shock, the impact resilience is weakened by the air layer in the space regardless of the use of the closed cell foam, and the shock absorbing material has a flexible shock absorbing characteristic. Can be a board, bruise by the board regardless of various collision postures or collision situations,
It is an object of the present invention to provide an extremely safe shock absorbing board that does not cause injuries such as whipping symptoms.

[0009]

In order to effectively achieve the above object, in a shock absorbing board according to the present invention, a space 3 is formed between sheets 1 and 2 made of closed-cell foams facing each other. It is characterized by a shock absorbing board in which rod-shaped pieces A made of closed-cell foam are arranged and fixed in parallel so as to be held and interveningly adhered. , The rod-shaped pieces A are prismatic members 5 having the same thickness and exhibiting a prismatic shape, and a plurality of rod-shaped pieces A are arranged in parallel and fixed at predetermined intervals. Further, a rod-shaped piece A in which a cylindrical body 4 and a prismatic body 5 are mixed is fixed between the sheets 1 and 2 made of closed-cell foam in a regular or irregular manner, and a shock absorbing board B is also provided. Is contained in a tough bag-like sewn product C equipped with an arbitrary opening / closing means 6. The shock absorbing board is characterized in that an arbitrary attachment mechanism having a fixing means 7 and a connecting means 8 is formed on the outside of the bag-shaped sewn product C in which the shock absorbing board B is stored. Is.

[0010]

[Operation] According to the shock absorbing board of the present invention, since a group of rod-shaped pieces made of closed-cell foam is sandwiched from both sides thereof, sheets of the closed-cell foam are also contacted and fixed. A space is always present between the one group and both sheets, and this space portion appears as a so-called cushioning function at the time of collision, and it is very flexible and can appropriately repel the force at the time of collision regardless of using the closed cell foam. Based on the above, the action of absorption will appear, and the increase in weight and the generation of offensive odor due to water retention will be prevented, and the ease of transportation and installation will be maintained.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an example of an embodiment of a shock absorbing board according to the present invention will be described in detail with reference to the following drawings.

FIG. 1 is a perspective view in which a cylinder made of closed cell foam is adhered between sheets made of closed cell foam, and FIG. 2 is shown between sheets made of closed cell foam.
FIG. 3 is a perspective view in which prismatic members made of closed-cell foam are bonded together, and FIG. 3 shows between sheets made of closed-cell foam.
FIG. 4 shows a perspective view in which a cylinder made of closed-cell foam and a prismatic material are regularly or irregularly interposed and bonded, and FIG. 4 shows a perspective view showing a state in which the shock absorbing board is housed in a bag-like sewn product. There is.

As shown in FIGS. 1 to 3, the sheets 1 and 2 and the rod-shaped piece A are each produced from a closed cell foam, and such closed cell foam is a soft polyethylene foam, Polypropylene foam, ethylene-
A product having a foaming ratio of 5 to 50 times such as vinyl acetate copolymer is applied. The size and thickness of the sheets 1 and 2 made of foam with closed cells are naturally determined by the required characteristics of the place of use and the object to be used.

FIG. 1 shows a shock-absorbing board B which can be installed at any place and which has a substantially-used structure, and which is formed between two sheets 1 and 2 of opposing closed-cell foams. In addition, a cylindrical article 4 made of a closed-cell foam having the same diameter and having a cylindrical shape having substantially the same length as the vertical width of the sheets 1 and 2 is fixed in parallel. The cylindrical body 4 is interposed between the sheets 1 and 2 so that the opposite side surfaces are in contact with each other or adjacent to each other, and are adhered by a usual general method such as heat fusion or adhesive adhesion. The shock absorbing board B has a space 3 between the sheets 1 and 2 and the cylindrical body 4 and an inner space of the cylindrical body 4 which serves as an air layer.
It is also possible to interpose and bond the prismatic members 5 made of the same material along both side edges of the sheets 1 and 2 in the vertical width direction. The outer diameter and the wall thickness of the cylindrical member 4 which is the rod-shaped piece A are appropriately selected depending on the purpose. According to this structure, at the time of impact, the space 3 which is an air layer exists between the sheets 1 and 2 and the cylindrical body 4 and in the inner diameter of the cylindrical body 4, so that the force due to the impact deforms the sheet and the cylindrical body 4. Is absorbed due to the soft shock absorption. The size of the shock absorbing board B is 2 m in width, 1 m in height and 1 in thickness.
It can be 0 cm or the like.

FIG. 2 shows a structure in which two sheets 1 and 2 of opposing closed-cell foam are sandwiched between the sheets 1 and 2.
A plurality of prismatic objects 5 having the same thickness and having a prismatic shape having substantially the same length as the vertical width of 2 are fixed in parallel through a space 3 at a predetermined interval. The prismatic member 5 is formed by laminating and adhering strip-shaped foams, and is adhered through the desired space 3 by using a general general method such as heat fusion or adhesive bonding. In order to form such a prismatic article 5, a laminated product is obtained by polymerizing a large number of closed-cell foams cut into strips and adhering and integrating them. The thickness of the laminated product, the strip size, and the size of the space 3 are subject to use. It is determined by the required characteristics of the object. According to this configuration, the space 3 which is an air layer exists in a relatively wide range,
At the time of impact, the sheet 1 in the contact direction enters into the space 3 while curving, and soft impact absorption occurs.

The shock absorbing board B shown in FIG.
Which is a modified embodiment of the present invention, in which a cylindrical object 4 and a prismatic object 5 having substantially the same length as the vertical width of the sheets 1 and 2 are mixed between two sheets 1 and 2 made of opposing closed-cell foams. The rod-shaped pieces A are arranged or fixed in a regular or irregular arrangement in parallel, and the same heat fusion or other adhesion method as described above is adopted for the adhesion. The space 3 intervenes also in this thing. According to this structure, a tough shock absorbing board B can be obtained due to the wide bonding area of the prismatic object 5, but a soft shock absorbing property can be obtained by the cylindrical object 4 itself and the spaces 3 between the sheets 1 and 2.

One of the defects of the conventional shock absorbing board is an increase in the weight of the shock absorbing board due to the infiltration of rainwater and the generation of a bad smell. To solve this problem, a strong material that does not damage the material of the bag-like sewn product is used. Although it was considered to use it, it was extremely expensive in practice and was not practical. From such a viewpoint, the closed-cell foam is selected as a buffer material that prevents rainwater from entering even if the provisional bag-like sewn product is damaged and does not trap rainwater even if it enters. However, the closed-cell foam has a high impact resilience against impact because there is no escape area for air in the bubbles, and if a shock-absorbing board is simply made of a laminated body of the closed-cell foam, the shock-absorbing property is high. It's just a bad product. In view of these points, by making the shape configuration of the shock absorbing board unique,
We were able to complete an extremely safe shock absorbing board with flexible shock absorption. That is, as is apparent from FIGS. 1 to 3, the rod-shaped piece A is interposed between the two sheets 1 and 2 of the closed-cell foams, and at the same time, the space 3 is formed. Of.

The impact-absorbing board B having the above-mentioned structure is used in a single piece or a plurality of pieces depending on the place of use, and it is apparent from FIG. 4 that the board B is housed in the bag-shaped sewn product C. The required performance as the bag-shaped sewn product C is scratch resistance, weather resistance, etc., and a material having necessary characteristics depending on the intended use is used, for example, vinyl chloride sheet, synthetic leather, waterproof sheet. Tough materials such as canvas, tent cloth, etc. are used relatively often. The shape and size of the bag-shaped sewn product C are determined based on the shape and size of the shock absorbing board made of the closed-cell foam contained therein.

This bag-like sewn product C is provided with an optional opening / closing means 6 such as a slide fastener along a necessary side edge, and a shock absorbing board B is erected and fixed on the side surface at an appropriate interval. A fixing means 7 such as a pile insertion hole is provided for this purpose, and further, the longitudinal edge can be fixed to a desired fixed object with a rope or the like, and the shock absorbing boards B can be sequentially connected according to the installation area. A connecting means 8 such as an eyelet is formed, and a handle 9 is attached to a side surface or a flat surface for facilitating the shock absorbing board B during transportation or installation.

Thus, the shock absorbing board B is sewn into a bag-like sewn product C.
After being housed inside, it is wound around a necessary portion such as a support or fixed in a danger zone by standing, and used for safety.

[0021]

According to the present invention, the above-mentioned constitution is adopted, and the sheet 1 made of the closed cell foam,
A rod-shaped piece A such as a cylindrical body 4 and a prismatic body 5 made of closed-cell foam is interposed and bonded between the two, so that the shock absorbing board B always has a space 3 which is an air layer. The space 3 appears as a buffering effect that weakens the impact resilience regardless of the use of the closed-cell foam, and can exhibit a flexible shock absorbing property, disperse the force at the time of impact and injuries such as bruising and whiplash. Will be blocked before it becomes extremely safe.

Further, since the shock absorbing board B has no water retention property, even if the bag-shaped sewn product C is damaged and rainwater penetrates, the weight does not increase, and the bad odor during storage due to the decay of rainwater is prevented. Furthermore, the workability of connecting the shock absorbing boards B to each other and installing and fixing them is extremely easy.

[Brief description of drawings]

FIG. 1 is a plan perspective view of a shock absorbing board.

FIG. 2 is a plan perspective view of a shock absorbing board according to another embodiment.

FIG. 3 is a plan perspective view of a shock absorbing board according to another embodiment.

FIG. 4 is a rear perspective view of the shock absorbing board housed in a bag-like sewn product.

[Explanation of symbols]

 1 sheet 2 sheet 3 space 4 cylinder 5 prismatic 6 opening / closing means 7 fixing means 8 connecting means 9 handle A rod-like piece B shock absorbing board C bag-like sewn product

Claims (6)

[Claims] 1. Rod-shaped pieces (A) made of closed-cell foam are arranged in parallel so as to interpose and bond sheets (1, 2) made of the closed-cell foam facing each other with a space (3). A shock absorbing board characterized by being fixed. 2. The shock absorbing board according to claim 1, wherein the rod-shaped pieces (A) are cylindrical articles (4) having a cylindrical shape and having the same diameter, which are fixed in parallel so as to be in contact with or adjacent to each other. 3. The shock absorption according to claim 1, wherein the rod-shaped piece (A) is a prismatic article (5) having a prismatic shape and having the same thickness, and a plurality of rod-shaped pieces (A) are fixed in parallel at a predetermined interval. board. 4. A sheet made of a closed cell foam (1,
The shock-absorbing board according to claim 1, wherein rod-shaped pieces (A) in which a cylindrical body (4) and a prismatic body (5) are mixed are fixedly arranged between 2) regularly or irregularly. 5. The shock absorbing board according to claim 1, wherein the shock absorbing board (B) is housed in a tough bag-like sewn product (C) provided with an arbitrary opening / closing means (6). 6. An optional attachment mechanism having a fixing means (7) and a connecting means (8) is formed on the outside of the bag-like sewn product (C) in which the shock absorbing board (B) is housed. The shock absorbing board according to claim 5.