JP3783081B2 - Pressure resistant mat - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a pressure resistant mat formed by providing a plurality of elastic supporters in a pressure resistant chamber formed of an upper plate and a bottom plate and enclosing a filling member.
[0002]
[Prior art]
Conventionally, a stepping mat that is laid on a floor surface of a factory or the like and used for standing work such as press work or assembly work is a flat plate having a predetermined thickness so as to be flexible with a rubber material or a plastic material. It is formed in a shape.
In addition, as a buffer mat for buffering vibration and impact of an object, a buffer mat in which a filling member made of a fluid such as water or a non-fluid such as a gel material is enclosed in a space formed by an upper plate and a bottom plate. It has been known.
[0003]
[Problems to be solved by the invention]
However, the stepping mat having the above-described conventional structure has a drawback that the sponge-like tissue is altered and hardened and loses its elasticity when compression is repeated after long-term use.
In addition, the mat encapsulating the filling member has the advantage of excellent cushioning properties without being cured even after long-term use. However, when used as a stepping mat, the local supporting force that is stepped on by the foot is weak. There are drawbacks such as wobbling of the foot and instability, as well as problems such as difficulty in walking on the mat.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned conventional problems, the pressure-resistant mat according to the present invention firstly forms a pressure-resistant chamber 6 composed of a space by overlapping a top plate 2 having flexibility with respect to the bottom plate 3 and sealing the outer periphery. In addition, a plurality of supporters 5 having elasticity for holding the space between the bottom plate 3 and the top plate 2 in the pressure-resistant chamber 6 are provided, and the resilience to liquid or deformation that does not hinder the flexibility of the top plate 2 is provided. It is characterized by enclosing a filling member 7 made of a gel-like member.
[0005]
Second, the supporter 5 is formed so as to protrude integrally from the upper plate 2.
[0006]
Thirdly, a plurality of supporters 5 formed independently in the pressure-resistant chamber 6 are provided at equal intervals.
[0007]
Fourth, the supporter 5 is characterized in that a small diameter portion 50 is formed.
[0008]
Fifth, the supporter 5 is formed in a cross section having a different diameter, and the filling member 7 is given a movement resistance.
[0009]
Sixth, it is characterized in that a connecting means for connecting to another pressure-resistant mat 1 is provided on the outer periphery of the pressure-resistant mat 1.
[0010]
Seventh, the bottom plate 3 is formed of a molding material such as concrete.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a pressure-resistant mat (hereinafter referred to as a mat) of the present invention that can be laid on a floor surface, a wall surface, or the ground (hereinafter referred to as a floor surface) of a building. The mat 1 includes a flexible top plate 2 and bottom plate 3. A plurality of supporters (supports) 5 that support a load in the compression direction, a pressure-resistant chamber 6 formed by airtightly joining the outer periphery of the upper plate 2 and the bottom plate 3, and filled in the pressure-resistant chamber 6. And the like.
[0012]
A first embodiment of the mat 1 will be described with reference to FIGS. The upper plate 2 in the illustrated example is formed on a flat plate surface 20 having a square shape of about 400 mm square and a thickness of about 3 mm, and a base diameter of about 8 mm and a tip diameter of about 8 mm on the inner surface thereof. A tapered truncated cone-shaped supporter 5 of about 7 mm is integrally projected downward with a length of about 8 mm, and the interval (pitch) between adjacent supporters 5 is about 30 mm. By arranging them at regular intervals in a staggered or lattice shape as viewed, it is possible to support the soles (including footwear soles such as shoes) substantially uniformly with a plurality of supporters 5 during treading, and the supporters On the surface of the upper plate 2 corresponding to 5, anti-slip and buffering protrusions 21 are provided in a conical shape.
[0013]
Further, the upper plate 2 is formed integrally with a downwardly inclined side frame portion 23 that forms a peripheral side wall 22 having substantially the same height as the supporter 5 on its outer periphery so as not to cause a steep step with the floor surface U. The protrusion 21, the supporter 5, the side frame portion 23, etc. are combined on the upper plate 2 side to form a rubber material or plastic material for molding. A mold (not shown) can be formed integrally and simply so as to have sufficient flexibility and strength.
Further, the upper plate 2 is formed with an adhesive step portion 25 that is fitted and joined to the inner periphery of the back side of the side frame portion 23 without protruding the outer periphery of the bottom plate 3, and the floor surface U is formed on the bottom surface of the side frame portion 23. A plurality of protrusions 26 are formed so as to be in close contact with each other.
[0014]
On the other hand, the bottom plate 3 is formed of a rubber material, a plastic material, a metal material, or the like into a flat plate having a size that can be fitted into the step portion 25 of the upper plate 2 and a thickness of about 2 mm. In addition, if the bottom plate 3 is formed in a flat plate shape with a rubber material as shown in the drawing, the flexibility of the entire mat 1 can be maintained when it is attached to the upper plate 2, so that it is well adapted to the unevenness of the floor surface U. It can be installed stably and can be easily handled.
[0015]
Next, the filling member 7 sealed in the pressure resistant chamber 6 will be described. The filling member 7 in the present embodiment employs a trade name “EXGEL” manufactured by Kaji Co., Ltd., which has excellent body pressure dispersion characteristics and can be manufactured at low cost. This reduces the burden on the user's foot when the mat 1 enclosed in the pressure-resistant chamber 6 formed by the configuration of the top plate 2, the bottom plate 3, and the supporter 5 is used as a rug for stepping pressure. In addition, it is designed to improve the feeling of use by reducing direct vibrations and shocks to the body.
[0016]
The above-mentioned filling member 7 has excellent body pressure dispersion characteristics by the unique manufacturing method of Kachi Co., Ltd., as is apparent from “High-performance chair mat LOVETON body pressure dispersion data” measured by the Hiroshima Eastern Technology Center shown in FIG. The synthetic resin material is formed in a gel shape so as to have excellent delay recovery characteristics, shock absorption characteristics, and excellent material shape retention characteristics when filled in the mat 1. .
This figure shows the result of measuring the distribution of surface pressure on the seat when an adult with a weight of 58Kg sits on a general office chair with a pressure gauge. When sitting on a mat formed of the filling member 7, the result of measuring the distribution of surface pressure received by the mat is shown by a solid line, the pressure is expressed in mmHg on the vertical axis, and the seating surface is shown on the horizontal axis. ing.
[0017]
That is, according to the figure, the body pressure dispersion characteristic of the general office chair has a maximum pressure of about 264 mmHg (359 g / cm 2) as shown by the dotted line value, and the body when sitting with a mat formed of the filling member 7 The pressure dispersion characteristic has a maximum pressure of about 95 mmHg (129 g / cm @ 2) as indicated by the solid line value.
And comparing the measurement results of both, the maximum body pressure dispersion characteristic of the mat by the filling member 7 is extremely low compared to the maximum body pressure dispersion characteristic when sitting directly on the chair, and the weight is the whole seat surface. Because it is distributed and distributed almost evenly in multiple directions, the burden of intensively applying weight to the body is reduced because the local maximum pressure of the buttocks is small, and problems such as pain and poor circulation due to compression are suppressed. There are features such as being able to.
[0018]
Further, the filling member 7 has a certain basic drag when a load is applied to the local portion thereof, and has a delayed recovery characteristic in which it slowly sinks and deforms and slowly returns when a load is applied. Therefore, the pressure-resistant dispersion can be performed satisfactorily by the synergistic effect with the flexibility of the filling member 7 itself, and the load on the body can be reduced by absorbing and reducing vibrations and shocks. .
And since the filling member 7 is also excellent in material shape retention characteristics, even if a load is applied from all directions and deformed, the deformed shape without changing the volume itself can be surely restored to the original shape along with the release of the load. Since the product is restored, it is possible to prevent the product including the filling member 7 from being deformed and the like, and even if the cover of the product is broken, the filling member 7 is difficult to leak out. There are advantages such as good prevention.
[0019]
The pressure-resistant mat 1 of the present invention configured as described above is the state in which the upper plate 2 is first turned upside down in the production process, and the product name “ The filling member 7 made of EXGEL "is poured and filled to the height of the step portion 25 in the initial state having fluidity, and after that, an appropriate adhesive is applied to the step portion 25 and the bottom plate 3 is fitted and bonded. As a result, the filling member 7 can be evenly enclosed in the pressure-resistant chamber 6, and then the filling member 7 becomes a stable gel-like material so as to have the characteristics shown in the above-described data by time-curing. The production of the mat is completed easily and efficiently.
[0020]
The mat 1 manufactured in this way is placed in a use state with the upper plate 2 on the upper surface by grounding the bottom plate 3 side to the floor surface U. The mat 1 is provided with the flexibility of the upper plate 2 and the supporter 5. Elasticity and the characteristics of the filling member 7 support the body weight (load) well, disperse the load while maintaining a certain basic drag, and relax the vibrations and shocks to provide a feeling of treading that is kind to the body Is something that can be done.
[0021]
That is, as shown in FIG. 2 (C), when a person puts on shoes or rides on the mat 1 with bare feet, the local part of the upper plate 2 stepped on with the feet W is lowered downward as indicated by a dotted line. As the submerged and deformed and the filling member 7 corresponding to the amount of deformation (step amount) moves in the sealed pressure-resistant chamber 6, the periphery of the stepped local portion of the upper plate 2 swells, The load can be well balanced and supported as follows.
[0022]
At the initial stage of the stepping pressure, the foot W is supported with a sense of stability while relaxing the grounding impact at the time of stepping by the basic drag of the filling member 7 and the drag (elastic force) of the supporter 5 in the free length, and then the full load Is added, the plurality of supporters 5 in the local area shrink while increasing the drag force, and the filling member 7 sealed and enclosed by the flexible upper plate 2 is sealed in the pressure-resistant chamber 6. It supports stably while distributing the load by increasing the pressure inside.
As shown in FIG. 2 (C), the tip of the supporter 5 may be formed with a small diameter portion 50 having a smaller diameter than the base side. In this case, the small diameter portion 50 bends better than other portions. Can be performed satisfactorily. The small-diameter portion 50 may be formed by providing a concave portion 51 at the base portion, the distal end portion, or the middle portion of the supporter 5 as shown by the dotted line in FIG.
[0023]
Since the supporter 5 balances with the load and restricts further sinking of the upper plate 2, the supporter 5 in the compressed state is laterally moved in the pressure-resistant chamber 6 even if the foot W is moved on the upper plate 2. Since it does not move in the direction, it does not hinder free movement or walking on the upper plate 2 while supporting it stably without causing an unstable feeling such as wobbling the foot.
Further, the pressure resistance of the pressure-resistant chamber 6 composed of the elastic force of the supporter 5 and the compressive drag force of the filling member 7 smoothly follows the movement of the body on the mat 1 and the minute fluctuation of the load. Has moderate hardness and can exhibit body pressure dispersion characteristics, and supports the body well without placing a heavy burden on the foot W, thus suppressing the occurrence of fatigue, etc. even during long standing work There are features such as being able to. Therefore, it can be made suitable as a stepping mat for press work, assembly work, or office work.
[0024]
Next, another embodiment of the present invention will be described with reference to FIGS. (In addition, description is abbreviate | omitted about the structure similar to the thing of 1st Embodiment.)
The mat 1 according to the second embodiment shown in FIG. 3 has a corner mat 1a, a side mat 1b, and a central mat 1c each having a pressure-resistant chamber 6 similar to those of the first embodiment. A mat 1 having a desired width can be freely formed by connecting a suitable number of connections via the connecting means 9.
[0025]
The connecting means 9 in the illustrated example is formed in a dovetail-shaped engaging portion 90 that is recessed and formed in the opposite side surfaces of each mat 1a, 1b, 1c, and a drum shape that can be fitted into the engaging portion 90. The mats 1a, 1b, and 1c adjacent to each other can be easily and firmly connected to each other by separating the mats 1a, 1b, and 1c from each other. It is configured as follows.
[0026]
According to the connecting means 9, since the engaging portions 90 are formed at the same position where the adjacent mats face each other, the type of mat formed in a single unit can be minimized and the mat can be manufactured. There is an advantage that the mold cost can be reduced.
Further, the connecting means 9 is not limited to the above, but as shown in FIG. 5E, engaging mating portions 92 and engaging projections 93 that can be engaged with each other are formed on the side surfaces of the adjacent mats 1a and 1b. Alternatively, a plurality of mats formed in the same shape may be provided in a row, and the outer periphery thereof may be surrounded and fixed by an appropriate outer frame (not shown).
Note that the mat 1 laid as described above may be protected by covering the surface with a wide single-layer flexible mat cover (not shown).
[0027]
The mat 1 according to the third embodiment shown in FIG. 4 shows an example in which the shape of the supporter 5 and the supporter 5 are integrally formed from a flexible bottom plate 3.
That is, the mat 1 has a top plate 2 formed of a flat plate having flexibility, and a support portion 5 that protrudes from the bottom plate 3 side. A hollow portion 52 is formed inside the mat plate 1 to make the supporter 5 flexible. While promoting, the material such as rubber is reduced.
Further, when the small-diameter portion 50 similar to that of the first embodiment is formed at the front end portion of the supporter 5, it is possible to satisfactorily cushion the supporter 5 in the initial stepping pressure due to the action of the hollow portion 52. It is. Further, the bottom plate 3 has an advantage that it can be formed into a saucer shape so that the filling work of the filling member 7 can be easily performed.
[0028]
A mat 1 according to the fourth embodiment shown in FIG. 5 forms supporters 5 that are alternately combined from an upper plate 2 and a bottom plate 3, and shows the shape of each supporter 5 in that case.
That is, the mat 1 has a supporter 5 that protrudes from the flexible upper plate 2 and is formed in a flat rib shape so as to contact the bottom plate 3, and a columnar supporter 5 that protrudes from the bottom plate 3 side. Is separated from the upper plate 2 so as to have a step interval, the initial step pressure is buffered well by the supporter 5 on the upper plate 2 side, and the load is stably supported by the supporter 5 of the bottom plate 3. To be able to.
[0029]
The mat 1 according to the fifth embodiment shown in FIG. 6 is a state in which a plurality of supporters 5 that are elastic and formed in a spherical shape or a piece shape are interposed and held in a filling member 7 with an appropriate interval. An example in which the filler member 7 is enclosed between the upper plate 2 and the bottom plate 3 is shown.
That is, in the mat 1, the upper plate 2 and the bottom plate 3 can both be formed into a simple and inexpensive structure by forming the supporter 5 separately from the upper plate 2 and the bottom plate 3 in a single shape. In addition to the advantages, since the supporter 5 is formed in a spherical shape as shown in the illustrated example, it is possible to satisfactorily perform buffering at the initial stepping pressure.
[0030]
The mat 1 according to the sixth embodiment shown in FIG. 7 has a plurality of supporter pieces 53 that form a plate-like rib from a central column portion of a supporter 5 that protrudes from the flexible top plate 2 or bottom plate 3 side. Are extended in the radial direction, and the side ends of the supporter pieces 53 are directed to the valleys of the supporter pieces 53 and 53 of the supporter 5 adjacent to each other.
According to this, the load can be satisfactorily supported through the plurality of supporter pieces 53, and the filling member 7 is enclosed by the supporter pieces 53, 53, 53,. Since the bent passage is formed in the pressure-resistant chamber 6, when the local portion of the upper plate 2 is pressed by the load and the filling member 7 in the local portion moves to the surroundings, an appropriate movement resistance is provided by the bent passage and the supporter piece 53. Therefore, there is an advantage that it is possible to promote the sustaining of the basic drag at the beginning of the stepping pressure of the filling member 7.
[0031]
Next, the mat 1 according to the seventh embodiment shown in FIG. 8 will be described. In this mat 1, a filling member 7 is enclosed in a pressure-resistant chamber 6 in a state where a supporter 5 having a plurality of supporter pieces 53 is independently formed and supported between an upper plate 2 and a bottom plate 3. An example is shown.
That is, in the illustrated supporter 5, a plurality of plate-like (blade-like) supporter pieces 53 are integrally projected in the radial direction on a cylindrical support column 55 having flexibility, and the upper and lower sides of the support column 55 are Are inserted into and supported by support portions 56 formed in the upper plate 2 and the bottom plate 3.
[0032]
According to this, since the supporter 5 is formed independently, there is an advantage that both the upper plate 2 and the bottom plate 3 are flat and can be easily formed with the same mold, and the supporter 5 has a cross section with a different diameter. Therefore, since the filling member 7 has the movement resistance as in the fourth and sixth embodiments, the load can be favorably distributed with a basic drag.
Reference numeral 1K denotes a protective mat cover that covers and covers the surface of the upper plate 2.
[0033]
Next, the mat 1 according to the eighth embodiment shown in FIG. 9 will be described. By forming the bottom plate 3 directly on the floor surface U such as the ground, the mat 1 can efficiently and easily produce the mat 1 having a large area and can be provided at a low cost.
That is, in the illustrated mat 1, the structure of the bottom plate 3 is recessedly formed on the floor surface U with a molding material such as concrete, and the filling member 7 is filled in the bottom plate 3, as described above. The upper plate 2 is installed flush with the supporter 5, and the mat cover 1 </ b> K is laid on the surface of the upper plate 2.
[0034]
According to this, since the base part which is arbitrarily constructed on the ground with concrete or the like can be used as the bottom plate 3, the mat 1 having a large area can be provided with a simple and inexpensive configuration. As shown in A), there is an advantage that the mat 1 can be easily constructed on the floor surface U of a barn such as a barn or the mat 1 can be easily constructed on a part of the passage on the ground. A pressure-resistant mat can be easily realized.
[0035]
Therefore, when the animal is placed on the mat 1 installed in this manner, the burden on the animal is greatly reduced, so that fatigue can be recovered and physical condition restoration can be promoted. It is possible to create an advantage that the milking effect can be enhanced while reducing the burden on the foot when milking livestock such as cows and giving a comfortable feeling.
Note that the mat 1 according to the first to seventh embodiments described above may be laid on the base portion as the bottom plate 3 formed of the concrete.
[0036]
Moreover, in the said embodiment, although the filling member 7 demonstrated the example which employ | adopted the product name "EXGEL" made from Kachi Co., Ltd. suitable for mass production inexpensively while being excellent in body pressure dispersion characteristics etc., it does not restrict to this. Other gel-like materials (non-fluid) having resilience to deformation without hindering the flexibility of the upper plate 2 may be used, or a liquid such as water or a fluid having viscosity may be used. .
The mat 1 configured as described above is not limited to the above-described use, and can be suitably used as a movable device or a mat for buffering an object.
[0037]
【The invention's effect】
The present invention configured as described above has the following effects.
A plurality of supporters having elasticity to hold the space are interposed in a pressure-resistant chamber formed of a space formed by overlaying a flexible upper plate on the bottom plate and sealing the outer periphery, and the flexibility of the upper plate is increased. The pressure resistant mat in which the filling member that does not disturb is sealed supports the load applied to the local part of the upper plate stably and satisfactorily while the upper plate compresses the supporter and the filling member and sinks and deforms.
[0038]
In addition, at the beginning of the treading pressure, the foot is relieved by the basic drag of the filling member and the elastic force of the supporter, and then multiple supporters in the local area shrink while increasing the drag as the full load is applied. Since the load is dispersed by the pressure of the filling member being increased in the pressure resistant chamber, the burden on the foot can be reduced. Therefore, it can be made suitable as a stepping mat.
[0039]
And since the supporter balances the load and restricts further sinking of the upper plate, even if the foot is moved on the upper plate, the supporter in the compressed state does not move laterally in the pressure resistant chamber. It does not hinder free movement and walking on the upper plate without causing instability such as wobbling.
[Brief description of the drawings]
FIG. 1A is a plan view of a mat according to a first embodiment of the present invention. (B) is a side view of (A).
2A is a side sectional view showing a configuration of a main part of the mat shown in FIG. (B) is a plane sectional view of (A). (C) is an enlarged action view of (A).
FIG. 3A is a plan view of a mat according to a second embodiment of the present invention. (B) is a top view which shows the shape of each mat | matte of (A). (C) is a top view which shows the structure of a connection means. (D) is an exploded perspective view of (C). (E) is a top view which shows another embodiment of (A).
FIG. 4 is a side sectional view showing a configuration of a main part of a mat according to a third embodiment of the present invention.
FIG. 5 is a side sectional view showing a configuration of a main part of a mat according to a fourth embodiment of the present invention.
FIG. 6 is a side sectional view showing a configuration of a main part of a mat according to a fifth embodiment of the present invention.
FIG. 7A is a side sectional view showing a configuration of a main part of a mat according to a sixth embodiment of the present invention. (B) is a top view which shows a supporter installation structure.
FIG. 8A is a side sectional view showing a configuration of a main part of a mat according to a seventh embodiment of the present invention. (B) is a top view which shows the supporter installation structure of (A). (C) is a perspective view of a supporter.
FIG. 9A is a perspective view showing an example of a usage pattern of a mat according to an eighth embodiment of the present invention. (B) is sectional drawing of the mat | matte of (A).
FIG. 10 is a graph showing “high-function chair mat LOBETON pressure-resistant dispersion data” of a trade name “EXGEL” manufactured by Kachi Co., Ltd.
[Explanation of symbols]
1 mat (pressure-resistant mat)
2 Upper plate 3 Bottom plate 5 Supporter (support)
6 Pressure-resistant chamber 7 Filling member 9 Connecting means 50 Small diameter portion 53 Supporter piece

Claims (7)

A pressure-resistant chamber (6) composed of a space is formed by overlapping a flexible upper plate (2) on the bottom plate (3) and hermetically sealing the outer periphery. In the pressure-resistant chamber (6), the bottom plate (3) and From a gel-like member provided with a plurality of elastic supporters (5) for holding the space between the upper plates (2) and having a resilience to liquid or deformation that does not hinder the flexibility of the upper plate (2) A pressure-resistant mat formed by enclosing a filling member (7). The pressure resistant mat according to claim 1, wherein the supporter (5) is integrally formed so as to protrude from the upper plate (2). The pressure-resistant mat according to claim 1 or 2, wherein a plurality of independent supporters (5) are interposed at equal intervals in the pressure-resistant chamber (6). The pressure resistant mat according to claim 1, 2 or 3, wherein a small diameter portion (50) is formed on the supporter (5). The pressure resistant mat according to claim 1, 2 or 3 or 4, wherein the supporter (5) is formed in a cross section with a different diameter to give a movement resistance to the filling member (7). The pressure-resistant mat according to claim 1, 2, 3, 4, or 5, wherein connection means for connecting to another pressure-resistant mat (1) is provided on the outer periphery of the pressure-resistant mat (1). The pressure-resistant mat according to claim 1, 2, 3, 4, 5, or 6, wherein the bottom plate (3) is formed of a molding material such as concrete.

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