JP3059072B2 - Shock absorber for fracture protection and clothing equipped with the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting a garment, particularly an undergarment, on an appropriate part of the waist, thereby enabling a fracture at the time of a fall,
In particular, the present invention relates to a shock-absorbing material for protecting a fracture, which prevents a fracture of a patient such as osteoporosis when the patient falls down, and to clothing equipped with the same, especially underwear such as pants.

[0002]

2. Description of the Related Art For example, as described in Japanese Utility Model Laid-Open No. 61-55008 and Japanese Utility Model Laid-Open No. 5-37911, when performing various sports, in order to prevent the occurrence of impacts and scratches on the body, Some clothing items are provided with protective equipment such as air bags at each part of the clothing.

[0003] However, the above-mentioned clothes, which are provided with protective equipment directly on each part, are suitable for sports use, but are unsuitable for ordinary clothes, especially underwear, and are suitable for use with protective equipment. I can't find any underwear. Also,
Recently, there is a tendency for elderly people to have weak legs and weakened bones, resulting in an increase in the number of fractures caused by falling, especially the fractures of the femoral neck.

For example, “THE JO” published in 1990
URNAL OF BONE AND JOINT S
URGERY VOL. 72-A, NO. 5 JUN
E. C. LOTZ AND W. C. HA
In a model experiment according to the report of YES, it was reported that a fracture was caused when a force of about 778 Newton (about 79 kgf) was applied. In addition, "Geria" published in 1991
tric, Medicine "VOL. 29 NO. In the research report of Yasushi Hayashi in No. 5, it is reported that when osteoporosis or the like progresses and the bone becomes brittle, the bone strength is reduced to about 42 to 79% of a healthy person. Danish Me, published in 1992
dical Bulletin] VOL. 39 NO. 1 / Februar
Jes Bruun Laurizen & Vagn Aske in y
Gaard's report examines the physical differences between patients with fractures of the femoral neck in the lumbar region and healthy subjects. The report states that there is a statistically significant difference in the thickness of the subcutaneous tissue covering the lumbar region, which indicates that the body density of the body is the same and that fractured patients and healthy people When comparing the cases, the thickness of the subcutaneous tissue was 20 mm in the former case and 29 mm in the latter case, and it was reported that there was a considerable difference. Further, in the above-mentioned report, the difference in shock absorption at the thicknesses of 20 mm and 29 mm was measured using pig tissue having the same mechanical properties as human subcutaneous tissue.

[0005]

According to the contents of these studies and the impact strength considered in the event of falling or collision due to force majeure in daily life, the present inventors have developed a shock absorbing material which absorbs external force by 50% or more. Accordingly, it has been found that it is desirable to attach a shock absorbing material having a function of complementing the subcutaneous tissue to clothing, particularly to the waist of underwear.

[0006]

SUMMARY OF THE INVENTION The present invention provides a pants in which a protective device for protecting a fracture is detachably provided at an appropriate part of a front body, a side part and a back body around a waist. Further, the present invention provides a shock absorbing material for protecting a fracture, which is suitable for such protective equipment and has a shock absorption rate of 50% or more, which is worn around the waist of clothing, and the shock absorbing material for protecting a fracture. Clothing, particularly pants.

In the present invention, the shock absorption is a shock absorption measured using a pendulum type device such as a measuring device shown in FIG. That is, the apparatus shown in FIG. 1 includes a column 1 appropriately fixed, an arm 2 rotatably provided via a bearing 4 (for example, a pillow type bearing) provided on a projection 3 of the column 1, and a 24 mm diameter (thigh). (Assuming the size of the apex of the bone neck). The impactor 5 is fixed to a lower end portion of the arm 2, and a stopper 6 is provided so as to be freely detachable below the arm 2. The stopper 6 is removed when the arm 2 is rotated. A sliding shaft 8 attached to a pressure gauge 7 (a load cell, in the following example, a load cell with the product number LU-100KB manufactured by Kyowa Dengyo Co., Ltd.) is inserted into the support 1, and the tip of the sliding shaft 8 is Has a thickness of 5 mm and a diameter of 75 m
For example, a disk-shaped fixing plate 9 made of a steel plate is fixed. The pressure gauge 7 is connected to an output unit 10 (in the following embodiment, an instrumentation conditioner of model number WGA-710A-3 manufactured by Kyowa Dengyo Co., Ltd.) 10 is used to amplify the shock distortion caused by the pressure gauge 7. I do.

The fixed plate 9 is provided with a shock absorbing material 11 such as cloth.
Attach. As a method, assuming that a shock absorbing material is actually attached to clothing, a bag-like knitted fabric 15 (using a 40-cotton single yarn, and having 960 upper and lower needles, respectively, as shown in FIG. 2) The knitted milling fabric is knitted with a 17-inch diameter knitting knitting machine manufactured by Gunze Co., Ltd., cut as appropriate, and sewn into a rectangular bag-shaped fabric.)
The shock absorbing body 11 is housed therein, and the upper end of the bag-shaped knitted fabric 15 is appropriately tied or locked with a button or the like. Then, for example, the knitted fabric 15 containing the shock absorbing material 11 is attached via a double-sided adhesive tape 12. Is fixed to the fixing plate 9 and fixed.

The shock absorption was measured by setting the total weight of the arm 2 and the impactor 5 to 2.5 kg and setting the swing width of the arm 2 so that the impact load was 90 kgf in a state where nothing was attached to the fixing plate 9. Set.

The shock absorbing material 11 is contained in the bag-like knitted fabric 15.
Is stored, and the shock absorption Y when the shock load when measured by attaching to the fixing plate 9 is X is determined according to the equation (1).

## EQU1 ## Y = {(90−X) / 90} × 100 (%)

The bag-like knitted fabric 15 alone is fixed to the fixing plate 9
When the impact load is measured in a state where the shock absorbing material is adhered to the bag-like knitted fabric 15 and the impact load is measured, the impact load is substantially zero. The influence of the cloth 15 on the impact load can be almost ignored.

As the shock absorbing material of the present invention, those having a shock absorbing rate of 50% or more, preferably 60% or more are used.

[0013]

[0014]

In the present invention, a silicone gel material is used as the shock absorbing material. The gel substance has a penetration of 50 to 20 (according to petroleum asphalt penetration test method (JIS 2207); load of 50 g).
A material having a hardness of 0 or a hardness of 0 to 90 degrees by a rubber hardness meter (A hardness meter) is used. By mixing a minute hollow sphere in the gel-like substance and increasing the internal damping against impact,
By reducing the resonance magnification and imparting rebound resilience, the impact absorption rate is increased. As the hollow sphere,
There are inorganic type and organic type. Examples of the inorganic type include hollow glass spheres having a diameter of about 5 to 300 μm. Examples of the organic type include a vinylidene chloride / acrylonitrile copolymer shell. Examples thereof include those in which isobutane is encapsulated or encapsulated. The shock absorbing material of the present invention may be a single material, or a plurality of materials of the same type may be overlaid. Further, for example, polyethylene, polyurethane, high molecular foam such as polystyrene and polyurethane high damping rubber,
Other different materials such as various kinds of rubbers such as natural rubber and ethylene propylene rubber, rubber foams, and elastic bodies such as styrene-based and propylene-based thermoplastic elastomers may be combined.

As a combination of such a plurality of materials, for example, a hard material having an appropriate thickness and a hardness of 5 to 70 is used as an outer layer, and a soft material having a hardness of 0 to 30 is used as an inner layer.
Examples include a layered structure and a three-layered structure in which a soft material is sandwiched between hard materials.

The size (area) of the shock absorbing material of the present invention is not particularly limited, but may be 1 cm ^{2 to} 600 cm ² ,
Preferably in the range of 10cm ² ~400cm ^2. The shape may be any shape such as a square, a rectangle, a circle, an ellipse, a polygon such as a rhombus, or a strip, and may be colored, or provided with a pattern such as unevenness on the surface, or provided with an opening. The air permeability may be improved.

[0018] The thickness of the shock absorbing material of the present invention is preferably 0.1 to 0.1 so that the shock absorbing rate is 50% or more, and the thickness of the shock absorbing material can be kept good by avoiding the thickness when worn on clothing. 5
The range is 0 mm.

The garment of the present invention is preferably made into a knitted fabric such as briefs, shorts, and monkey crotch, or pants made of a fabric. The shock-absorbing material may be fixedly or detachably attached to one or a plurality of arbitrary places, such as the entire circumference of the waist of the garment or the front body, the side portions and the back body, and the wearing method itself is particularly limited. Not something. For example, the shock absorber can be shocked through the pocket etc.
Moreover, you may sew on clothing. Further, it may be detachably mounted via a planar fastener. The use of an adhesive is also possible. The material for forming these clothes, pockets and the like is not particularly limited, and stretchable or non-stretchable fabrics woven and woven with natural fibers, synthetic fibers and the like can be used.

[0020]

EXAMPLES The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. Example 1 A silicone gel-like substance “β-gel” (trade name) mixed with micro hollow spheres manufactured by Siegel Co., Ltd.
mm to obtain a shock absorbing material. Hardness by A hardness tester is 0
Met. The shock absorbing material was stored in the bag-like knitted fabric 15 and the shock absorbing rate was measured. As a result, it was 92.2%.

[0021]

[0022]

[0023]

[0024]

[0025]

Example 2 In the same manner as in Example 1, a shock-absorbing material was obtained by changing the thickness of “β-gel” (trade name), a silicone-based gel-like substance manufactured by Siegel Co., Ltd., to a thickness of 5 mm. The hardness according to the A hardness tester was 0. The shock absorbing material was stored in the bag-like knitted fabric 15 and the shock absorbing rate was measured. As a result, it was 78.2%.

Example 3 A silicone gel-like substance “β-gel” (trade name) manufactured by Siegel Co., Ltd. was coated on both sides with a vinyl chloride film (film thickness 0.1 mm) to a thickness of 5 mm. Thus, a shock absorber was obtained. The hardness according to the A hardness tester was 17. The shock absorbing material was stored in the bag-shaped knitted fabric 15 and the shock absorbing rate was measured. As a result, it was 85.2%.

Example 4 A silicone gel-like substance “β-gel” (trade name) manufactured by Siegel Co., Ltd. was coated on both sides with a polyurethane-based film (film thickness: 0.1 mm) to make the thickness 5 mm. A shock absorber was obtained. The hardness obtained from the A hardness tester was 1. The shock absorbing material was stored in the bag-shaped knitted fabric 15 and the shock absorbing rate was measured. The result was 86.8%.

[0029]

Example 5 As the outer layer, a polyethylene foam "Toray Peff" (trade name) (grade 05030, 5 times expanded) manufactured by Toray Co., Ltd. having a thickness of 3 mm and a hardness of 57 using an A hardness scale was used as an inner layer. , A thickness of 5 mm, and a hardness of 0 using an A hardness scale, “β-gel” manufactured by Siegel Co., Ltd.
Laminated with rubber adhesive (product name: KE42T),
An impact absorbing material having a total thickness of 8 mm and a two-layer structure was obtained. The shock absorbing material was directly adhered to the fixing plate 9 and the shock absorbing rate was measured to be 88.0%.

[0031]

COMPARATIVE EXAMPLE Soft polyurethane (apparent specific gravity 0.022 g / cm ³ ) used in the bottom pad made by ASICS Co., Ltd. was made 10 mm thick and stored in a bag-like knitted fabric 15.
The measured shock absorption was 16.5%.

An example of pants with the shock absorbing material of the present invention will be described below with reference to FIGS. FIGS. 3 and 4 show examples of pants having pockets for storing shock absorbing materials at both waist portions. Pants 21 made of a cotton knit fabric or a cotton woven fabric have a front body 22, a back body 23, and a side. It comprises a part 24 and pockets 25 on both sides. Each pocket 25 is provided on the outer surface of the pants 21 from the side part 24 to the buttocks 26 of the back body 23, and three peripheral parts are fixed by sewing parts 28. The shock absorbing material 11 is housed in the pocket 25 through the upper opening 30 of the pocket 25, and is mounted so as to close the upper opening 30 through, for example, a fastener (not shown) that can be opened and closed. .

The fabric constituting the pocket 25 is, for example, a knitted fabric or a net-like fabric with a stretchable weft or warp knit, a stretchy net-like fabric or a fabric with a stretchable stretch. A cloth that can securely store and hold the shock absorber 11 is preferable.

The pocket 25 is provided with the sewn portion 28 as described above.
However, instead of sewing, for example, a planar fastener is provided at an appropriate position on the pants 21 and the pocket 25, and the pocket 25 is attached to the pants 21 via the planar fastener. It may be fixed to the side. Alternatively, the stretchable knitted fabric may be formed in a bag shape, and the bag containing the absorbent material 11 may be sewn all around.

FIGS. 5 and 6 show examples of pants in which a shock absorbing material is attached all around the waist.
That is, divided pockets 25 are provided on the entire outer peripheral surface of the front body 22, the side portions 24, and the back body 23. The shock absorber 11 is provided in the pocket 2 as in FIGS.
5 is accommodated in the pocket 25 through the upper opening 30, and the upper opening 30 is mounted so as to be closed by, for example, an openable and closable fastener (not shown).
Alternatively, the shock absorber may be housed in a knitted pocket bag and the entire circumference of the bag sewn directly to the pants.

FIGS. 7 and 8 show examples of pants with strip-shaped shock absorbing materials.
It is composed of a back body 23, side portions 24, and pockets 25 on both sides. On the back side of each pocket 25, a planar fastener is mounted, and the pockets 25 are provided from the side portions 24 to the buttocks 26 of the back body 23 through a number of means such as sewing or bonding. Sheet fastener 20
It is detachably attached via. Shock absorber 11
Is formed in a strip shape, and a number of strip-shaped shock absorbers 11 are stored in the pocket 25 in a strip shape, or
Alternatively, the strip-shaped shock absorbers 11 may be integrally connected to each other by means such as bonding or sewing together to form a pocket 25.
You may make it accommodate in. The upper opening 30 of the pocket 25 may be closed, for example, via an openable / closable fastener (not shown). As an alternative, the shock absorber can be worn directly on the pants with a hook-and-loop fastener on the back of the shock absorber without using pockets, or by storing the shock absorber in a knit fabric bag The entire circumference of the bag may be sewn directly to the pants.

When the shock absorbing material of the present invention is worn on the pants as described above, the impact absorbing material is installed so as to cover a portion centered on the neck of the femur, specifically, a portion centered on the apex of the femur. It is preferable to provide it on the entire circumference of the waist such as the front body and the back body other than the position centering on the neck of the femur.

[0039]

According to the shock absorbing material of the present invention, particularly,
Even if the old man falls down in any direction, such as forward or backward, or left or right side during walking, the shock absorbing material provided on the clothing allows the hips, that is, the front body, side parts, back body parts, and buttocks. Is protected, and an effect of preventing a fracture of the femoral neck can be obtained.

[Brief description of the drawings]

FIG. 1 is a diagram showing a shock absorption rate measuring device.

FIG. 2 is a cross-sectional view of a bag containing a shock absorbing material, which is used to measure a shock absorption rate using the measuring device of FIG.

FIG. 3 is a front perspective view of the pants on which the shock absorbing material of the present invention is detachably mounted.

FIG. 4 is a rear perspective view of the pants on which the shock absorbing material of the present invention is detachably mounted.

FIG. 5 is a front perspective view of the pants to which the shock absorbing material of the present invention is detachably attached.

FIG. 6 is a rear perspective view of the pants to which the shock absorbing material of the present invention is detachably attached.

FIG. 7 is a front perspective view of the pants to which the shock absorbing material of the present invention is detachably attached.

FIG. 8 is a rear perspective view of pants on which the shock absorbing material of the present invention is detachably mounted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 ... Shock absorber 21 ... Pants 22 ... Front body 23 ... Back body 24 ... Side part 25 ... Shock absorber storage pocket 26 ... Buttocks

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Naohiro Ozawa 262 Soto, Miyazu-shi, Kyoto Gunze Co., Ltd. Within the headquarters (56) References JP-A 3-63519 (JP, U) JP-A 62-97112 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A41D 13/00 A41B 9/02-9/04 A41B 9/12

Claims (1)

(57) [Claims] 1. Pants comprising a shock absorbing material for protecting a fracture having a shock absorption rate of 50% or more at an appropriate part of a front body, a side part, and a back body around a waist. A silicone-based gel-like substance mixed with a spherical body is used, and the hardness of the gel-like substance by a rubber hardness tester is in the range of 0 to 90 and the thickness is 0.1%.
A pants provided with a shock-absorbing material for protecting a fracture, wherein the pants are configured so as to have a range of about 50 mm.