WO2007015363A1

WO2007015363A1 - Shock absorber for sports

Info

Publication number: WO2007015363A1
Application number: PCT/JP2006/314137
Authority: WO
Inventors: Kazuya Iwata; Toshiro Yanagida
Original assignee: Kazuya Iwata; Toshiro Yanagida
Priority date: 2005-08-01
Filing date: 2006-07-11
Publication date: 2007-02-08
Also published as: US20090113592A1; JP2007037637A

Abstract

A shock absorber (10) for sports (ball game), comprising a first sheet-like member (30) having a glove body (12) and a hand insertion part (50) and covering the roughly center portion of the back of the hand of a user, second sheet-like members (32) covering the back portions of the thumb to the little finger of the user, and a third sheet-like member (34) covering the hand insertion part (50). By using a polyurethane near-gelation elastomer with excellent impact absorbing property as the material of these first sheet-like member (30), the second sheet-like members (32), and the third sheet-like member (34), the necessary portions of the body of the user can be protected against impact caused by a pitched ball without impairing the freedom of operations of the user.

Description

Specification

Shock absorber for sports

Technical field

The present invention relates to an impact mitigation device for sports (protective evening).

Background art,

Conventionally, in sports competitions, shock relief devices are sometimes used for the purpose of protecting the body from shocks. For example, serious injury such as fractures by wearing shock relief devices on joints and sensitive parts. To reduce the risk of incurring In particular, in baseball, the batter has a risk of injury from a dead ball and a self-ball. In this case, in particular, the back of the hand is subjected to an impact load so that it is sandwiched between the bat and the pole, and the subcutaneous muscle is thin, so there is a high risk of fracture. Since it is a raised part, it is a part that has a high risk of fracture, like the back of the hand. Therefore, it is desirable that gloves worn at the time of striking have shock mitigation properties that can protect the hand from the striking force at the time of collision of the pole.

This type of conventional protective equipment (see, for example, JP 2003-533304 A) is adapted so as not to deviate from the wearing position on the body and has an impact resistance effective for the purpose of protecting the body. There is something to have.

FIG. 9 is a perspective view of a conventional protective device 10 'of this type.

In FIG. 9, the armor 10 'is sewn such that a plurality of plates 15 5' made of impact-resistant material overlap with the ligament 16 '. It should be noted that the protective device 10 can be removed from the clothing by providing strips 1 8 ′, 1 9 made of hook-and-loop fasteners at both ends of the ligament 16, so that any part of the body, in particular, It is provided in a part that is susceptible to impact damage.

According to this conventional protective device 10 ', when it can be attached to and detached from clothes, it can be used with different protection characteristics, and it can be attached to various clothes according to the purpose. It becomes possible.

Also, this protective equipment 10 'is typically used in sports competitions, but for example, in the medical field, to prevent movement of limbs or It can also be used when it is necessary to protect the body from.

Next, a conventional baseball glove (for example, see Japanese Patent Laid-Open No. 10-1797973) 1 0 0 a 'will be described with reference to FIG.

FIG. 10 is a view of a conventional baseball glove 10 0 0 a 'viewed from the back side.

In FIG. 10, conventional baseball gloves 100 0 a 'are composed of a glove main body 1 a' mainly made of thin synthetic leather and a wrist mounting belt 8 a '. . The mounting belt 8 a, is provided so as to be opened and closed by male and female face fasteners 8 0 a ′ and 8 1 a ′. '

On the metacarpal bones of the 2nd to 5th fingers of the back, a straight slit 1 0 a, and a straight slit 1 1 a 'from both ends of the slit 10 0 a to the wrist side By forming the shape, a notch 1 2 a 'is provided. In addition, a stretchable sheet 2 a ′ having elasticity is sewn from the inner surface side of the cutout portion 1 2 a ′, and vent holes 1 3 a, are arranged in the second to fifth finger portions. ing.

It should be noted that the materials constituting the conventional baseball gloves 100 0 a ′ are made of a slightly thin leather, with few members other than natural or synthetic leather being used. In addition, when the bat is gripped, the elastic sheet 2 a 'expands and contracts according to the movement of the hand, so that the freedom of the hand when wearing gloves is secured.

Disclosure of the invention

However, in the case of a conventional armor in which a plate for impact resistance is superimposed on a ligament, a plurality of rigid or semi-rigid plates are arranged along a common ligament. Therefore, it is difficult to obtain a stretchability suitable for delicate body movements in sports competitions while having shock relaxation properties for protecting the body, and the freedom of body movements is impaired. There was a problem.

Also, in baseball games, batters need delicate bat controls when hitting. For this reason, gloves or sports impact mitigators worn by batters can protect the batter's hand from the striking force of the ball with the dead ball at the time of hitting, and the resistance when moving the hand is small. desired. However, the conventional baseball glove does not have sufficient shock absorbing power, and is not suitable for protecting the body from the striking power at the time of collision with the pole. Therefore, the present invention is an impact mitigation device that is worn on a part of the body when playing sports, and includes a sheet-like member made of polyurethane near-gel material elastomer at a position covering the body part to be protected. A shock absorber for sports (claim 1), and a shock absorber to be worn on a part of a body when playing sports, comprising a sheet-like member made of polyurethane near-gel elastomer. The above-mentioned problem has been solved by an impact mitigation device for sports that forms a seat shape as a whole.

The sports shock absorber may take the form of gloves, sports shoes or boots, sport redder guards, sports stockings, ball glove or mitt, sports underpants, etc. The sports shock mitigation device in the form of a seat itself can be attached to any part of the body.

Brief Description of Drawings

FIG. 1 is a view of a sports shock absorber according to a first embodiment of the present invention as seen from the back side. Figure 2 shows the skeleton of the left hand of the human body.

Fig. 3 shows the impact absorption of non-prene suitable as an elastic material used in the present invention. Fig. 3 (a) shows the relationship between non-prene thickness (mm) and impact absorption rate (%). Fig. 3 (b) is a comparison of shock absorption between non-prene and other materials.

FIG. 4 is a diagram in which the sports shock absorbing device of the second embodiment of the present invention is applied to sports shoes.

FIG. 5 is a diagram in which a plurality of sports impact mitigation devices are applied to a field guard and a soft pole for a guard guard in the third embodiment of the present invention.

FIG. 6 is a diagram in which the sport shock absorber of the fourth embodiment of the present invention is applied to stockings.

FIG. 7 is a diagram in which the impact mitigation device for a sports bowl according to the fifth embodiment of the present invention is applied to a ball game grab.

FIG. 8 shows the sport shock absorber of the sixth embodiment of the present invention applied to the underpants, and for convenience, a part of the covering cloth is cut away so that the sheet-like member can be seen. Figure.

FIG. 9 is a perspective view of a conventional armor.

FIG. 10 is a view of conventional baseball gloves as seen from the back side.

BEST MODE FOR CARRYING OUT THE INVENTION

A first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a view of a sports shock absorbing device 10 according to a first embodiment of the present invention as seen from the back side.

FIG. 2 is a diagram showing the skeleton of the left hand of the human body.

Fig. 3 is a diagram showing the impact absorption of non-prene (polyurethane near gel material elastomer manufactured by Hirakata Giken Co., Ltd., trade name "Non-prene") suitable as an impact mitigating material used in the present invention. a) The figure shows the relationship between the thickness (mm) of non-prene and the impact absorption rate (%). Figure 3 (b) is a comparison of the impact absorption between non-prene and other materials.

In this first embodiment, the sports impact mitigation device 10 is composed of a glove body 12 and a hand insertion part 50 covering the back side and the palm side. In addition, the glove body 1 2 has a thumb 20 at the site corresponding to the thumb (first finger) and an index finger 2 2 at the site corresponding to the index finger (second finger) when worn. Middle finger part 2 4 in the part corresponding to the middle finger (third finger), ring finger part 26 in the part corresponding to the ring finger (fourth finger), and little finger part 2 8 in the part corresponding to the little finger (fifth finger) Is provided. The glove body 1 2 and the hand insertion part 50 may be integrally formed separately, but the glove body 1 2 and the hand insertion part 5 0 are three-dimensionally cut. A thing may be used.

The glove body 1 2 includes a first material part 3 8 covering the back part and back part of the first to fifth fingers of the glove body 1 2, and a first material part 3 8 covering the entire hand so as to surround the first material part 3 8. 2Material part 3 9-It is physically combined.

For the first material part 38, it is preferable to use a woven or non-woven fabric made of natural / chemical fibers with stretchability / breathability, but it is also possible to use a material such as synthetic leather. .

When the first material part 3 8 is made of a stretchable material, the first material part 3 8 expands and contracts according to the movement and size of the user's hand and does not compress the user's hand. like can do.

For the second material part 39, natural 'synthetic leather should be used in order to obtain a non-slip effect when gripping the bag, but other natural or chemical fibers are used. A material such as a woven fabric, a non-woven fabric, rubber, an elastomer, or urethane may be used. ,

The manual insertion portion 50 is configured to be openable / closable / adjustable by providing a repeatedly detachable member such as a hook-and-loop fastener, a snap button, or a press stud. Preferably, the hand insertion part 50 protects not only the carpal part (wrist) 5 4 shown in FIG. 2 but also the ulna part 5 6 and the radius part 5 8 including the ulna head part 52. Thus, the risk of injury to the wrist and forearm can be reduced by covering the wrist and elbow in a long manner.

A first sheet-like member 30 is provided so as to cover the back (metacarpal bone and carpal).

A second sheet-like member 3 2 is provided so as to cover at least one dorsal part (the proximal phalanx and the middle phalanx) of the first to fifth fingers. Preferably, since the fingertip (the distal phalanx) is less likely to receive a dead ball than the back of the hand, the second sheet-like member 32 may be provided thinner than the first elastic member 30.

Although not shown in the figure, separately from the above-mentioned location, a second sheet material 3 2 is provided from the fifth phalanx to the proximal ulna, that is, to cover the side of the hand. Also good.

The first sheet-like member 30 and the second sheet-like member 3 2 can be provided so as to be overlaid from above the first material portion 3 8 and the second material portion 39. Instead, it may be sewn or bonded so as to be surrounded by the first material portion 3 8 and the second material portion 3 2. The first sheet-like member 30 and the second sheet-like member 32 may be configured to be removable from the hand bag main body 12 by using a locking means such as a hook-and-loop fastener snap button.

A third sheet-like member 34 described later is provided so as to cover the manual insertion portion 50. The third sheet-like member 3 4 is usually structured in one piece by sewing or bonding to the manual insertion portion 50, but it is a locking means such as a hook-and-loop fastener snap button. It can also be provided so that it can be removed.

As the material of the first sheet-like member 30, the second sheet-like member 3 2, and the third sheet-like member 34, the above-described non-prene is suitable, but of course, an equivalent material is used. Can be used.

In Fig. 3 (a), non-prene has a shock absorption rate of more than 80% when the thickness is between 1 mm and 2 mm, and nearly 100% when the thickness exceeds 3 mm. It can be seen that the rate can be obtained.

Fig. 3 (b) shows that a steel ball (64 g, 025 mm) is naturally dropped from a height of 15 Omm onto a 10 mm test piece (non-prene), and is loaded with a load cell (load transducer). The figure shows a comparison of the impact absorption rate calculated based on the measured values. It can be seen that nonbrene has extremely superior impact absorption compared to other elastic materials.

This non-prene is characterized by having a strong endurance even when bent over a long period of time, and also has a durability against tearing in the lateral direction, and is an ultra-soft elastomer. Can cope with the expansion and contraction of body parts.

The first sheet-like member 30, the second sheet-like member 3 2, and the third sheet-like member 34 are preferably provided with a vent hole 36 to ensure air permeability.

Next, a second embodiment of the present invention will be described with reference to FIG.

FIG. 4 is a diagram when the sports shock absorber 10 b according to the second embodiment of the present invention is applied to a sports shoe.

In FIG. 4, the impact mitigating device 10b for sports is composed of a sheet-like member 30b provided with a plurality of vent holes 36b. Further, the sheet-like member 3 O b is provided with a stop band 46 b for fixing to the heel (rib) portion of the shoe.

For example, in baseball, the sports shock absorber 10 b has a shape that covers at least the instep (metatarsal bone, wedge-shaped bone, cubic bone, boat-shaped bone, and talus). The back of the foot can be protected from impacts such as hitting balls.

In addition, in order to enhance the protection function, sports shoes sometimes have a boot shape in some cases, but the present invention is of course applicable to such boots. Next, a third embodiment of the present invention will be described with reference to FIG.

FIG. 5 is a diagram showing a case where the sport shock absorbers 10 c and 10 d of the third embodiment of the present invention are applied to baseball and softball leg guards.

In FIG. 5, the impact mitigation devices 10 c and 10 d for sports are provided with stop bands 4 6 c and 4 6 d for attaching to the fixed positions of the redder guards to the sheet-like members 3 0 c and 3 0 d, respectively. Is provided. The impact relief device for sports 1 0 c, 1 0 d is designed to cover at least the shins of the foot (tibia and ribs), so that it can withstand impacts when colliding with the pole and other competitors. Protective properties can be obtained. Further, for example, the sport shock absorbers 10 c and 10 d may be provided on the redder guard by a method such as sewing or bonding without providing the stop bands 4 6 c and 4 6 d.

Preferably, in the second and third embodiments, the shape-retaining member 4 2 is made of a material having resistance to metal fatigue caused by deformation, such as a wire using an aluminum alloy, on the outer periphery of the sheet-like member. b, 4 2 c 4 2 d are provided. Thus, for example, with a mechanism to fix the mask shape to the nose line, ^ [As you know, the shape of the heel-shaped member matches the shape of the sports shoes or sports redder guard. Fix the shape of the shaped member so that it does not shift when it is mounted.

Next, a fourth embodiment of the present invention will be described with reference to FIG.

FIG. 6 is a diagram in which the sports shock absorber 10 e of the fourth embodiment of the present invention is applied to the stocking. '

In FIG. 6, the impact mitigating device 10 e for sports is composed of a sheet-like member 30 e provided with a plurality of vent holes 36 e. The sheet-like member 30 e is provided so that at least the shins (tibia and ribs) of the foot are covered with the stockings sewn in a cylindrical shape. This provides protection against impacts when colliding with poles and other competitors. Further, the sports impact mitigating device 10 e may be provided by a method such as attaching or bonding to the stocking.

Next, a fifth embodiment of the present invention will be described with reference to FIG.

FIG. 7 is a diagram in which the sports shock absorber 10 f of the fifth embodiment of the present invention is applied to a ball game, that is, a baseball or a soft pole glove. 7

8 In FIG. 7, the impact mitigation device 10 f for sports is provided with a plurality of sheet-like members 30 f on a baseball or soft pole grab (including a mitt).

In baseball or soft pole grabs that have natural and artificial leather catching surfaces and back that are sewn and protect the first to fifth fingers, the first to fifth fingers on the catching surface The sheet-like member 30 f is exposed at all fingers up to the part and at a position corresponding to the entire palm. Note that the sheet-like member 30 f may be provided over the entire surface of the catching surface, or may be provided so that the sheet-like member 30 Of is not exposed inside the catching surface.

If the sheet-shaped member 30 f is provided on the surface of the catching surface, not only will the fingers and palms be protected when the mounting cage catches the ball, but the pole is grabbed by the frictional force of the sheet-shaped member 30 f. It is possible to make it easy to securely hold it in the inside.

Next, a sixth embodiment of the present invention will be described with reference to FIG.

FIG. 8 shows that 10 g of the sports shock absorber according to the sixth embodiment of the present invention is applied to the underpants, and for convenience, a part of the covering cloth is cut out so that the sheet-like member 30 g can be seen. FIG.

Usually, sports underpants are worn from the inside of uniform pants, and the main purpose is to protect the hips by friction with the ground during sliding and other operations involving sliding contact between the ground and the hips. Is.

The sheet-like member 36 g may be provided so as to cover the entire buttocks such as the thigh fascia latae muscle and the gluteal muscle, but depending on the purpose, locally, such as only a part of the gluteal muscle. May be provided.

Industrial applicability

According to the impact mitigation device for sports of the present invention, when a batter receives a dead ball in baseball, the danger such as a fracture caused by the impact of the pole can be greatly reduced. The wearer can also wear it on any part of the body to protect it from impact.

Claims

The scope of the claims

1. It is an impact mitigation device that is worn on a part of the body when playing sports, and has a sheet-like member made of polyurethane near-gel material elastomer in a position that covers the body part to be protected. A shock absorber for sports.

2. The shock absorber for sports according to claim 1, wherein the sports shock absorber has a shape of a glove, and includes the sheet-like member at a position covering at least the back of the hand and the ulna head.

3. The sports shock absorbing device according to claim 1, wherein the sports shock absorbing device is mounted on sports shoes or boots and includes at least the sheet-like member at a position covering an instep.

4. The sports impact mitigation device according to claim 1, wherein the sports shock mitigation device is attached to a sports redder guard and includes the sheet-like member at least at a position covering a shin.

5. The sport shock absorbing device according to claim 1, wherein the seat stock is provided at least at a position covering the shin of the sport stocking.

6. The impact-reducing device for sports according to claim 1, wherein the sheet-like member is provided on at least a catching surface of a ball glove or a mitt.

7. The sports shock absorbing device according to claim 1, wherein the seat-like member is provided at least in a position covering the buttocks of the sports underpants.

8. The impact reducing device for sports according to any one of claims 1 to 7, wherein the sheet-like member is detachable. ·

9. A shock-reducing device that is worn on a part of the body when playing sports, comprising a sheet-like member made of a gel material near the polyurethane, and has a sheet shape as a whole. Ingredients.