JP3448575B2 - Shoe protection - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to boots, safety shoes, etc.
The present invention relates to a protector which is attached to shoes used for various work to ensure safety.

[0002]

2. Description of the Related Art Conventionally, in a safety shoe, for example, an iron plate is attached to a toe portion of a shoe in order to protect the toe of the foot. In addition, a protector called a protector may be attached to the outside of the shoe to protect the upper part above the toe part. Such a protector is composed of, for example, an iron plate that is a core member that is curved along the instep portion, and a cushioning material that is attached to the surface of the iron plate that faces the shoe.
The iron plate is for receiving the falling of building materials, tools, etc., and the cushioning material is for absorbing the shock caused by the falling.

[0003]

In the above-mentioned protective equipment, since it is detachably attached so as to be placed on the instep portion via the cushioning material, the weight of the falling object is reduced. In some cases, the shock absorbing material may not completely absorb the shock. As described above, depending on the magnitude of the impact force, the impact is transmitted to the instep of the foot through the shoe, and in some cases, the foot may be injured.

An object of the present invention is to eliminate such a problem.

[0005]

The present invention takes the following means in order to achieve such an object. That is, the shoe protector according to the present invention has a core member that is rigid and is curved so as to follow at least the shape of the upper part of the shoe, and an impact received by the core member that is provided on the inner surface of the core member. A shoe protector provided with a cushioning member for cushioning, which is attached to a shoe so as to cover at least an upper part of the shoe,
The core member prevents the movement of the bending portion toward the instep portion in the state where the bending portion covers the instep portion of the shoe and the bending portion is grounded when the bending portion receives an impact so that the bending portion is separated from the instep portion. And a cushioning member that becomes thinner when the core member receives an impact, and holds the lower edge of the leg at least above the bottom surface of the shoe in a state other than when the core member receives an impact. It is characterized by having a thickness.

With such a structure, the lower edges of the legs of the core member are higher than the bottom surface of the shoe, that is, floated by the cushioning member at all times, that is, in a state other than when the core member receives an impact. Held in position. Therefore, at the time of walking, since the core member does not contact the ground, it does not hinder walking. On the other hand, when a shock is applied to the core member, the buffer member shrinks according to the magnitude of the shock and absorbs the shock. When the impact is large, the core member descends, and the lower edge of the leg comes into contact with the ground while the curved portion is separated from the instep portion. This allows
The shock applied to the core member is absorbed by the cushioning member, is hardly transmitted to the instep portion, and is blocked by the grounded core member. Therefore, even if a relatively heavy article falls on the core member, it is possible to effectively protect the foot in the shoe.

The cushioning member is preferably a deformable bag containing air. With such a bag body, it becomes possible to easily hold the core member at a predetermined position until the core member receives an impact, and when the core member receives a large impact, the core member is quickly grounded. It becomes possible to be in a state.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below.
This will be described with reference to FIGS.

A shoe protector (hereinafter referred to as a protector) 100 shown in FIG. 1 is to be mounted on a safety shoe SH having an iron plate SH1 incorporated in a toe portion. The protector 100 is
On the surface of the core member 1, a core member 1 having rigidity that can withstand impacts when articles such as materials and tools at the work site fall, a bag body 2 serving as a cushioning member attached to the back surface of the core member 1, The outer skin member 3 is attached. The outer skin member 3 is made of, for example, natural or synthetic leather, and has a mounting portion 31 that projects toward the tongue. The mounting portion 31 is provided with, for example, two through holes 31a, and a string is passed through the through holes 31a, and the lace is tied to a shoelace so that the protector 100 is secured to the safety shoes SH. To do. The mounting portion may be one in which a hook-and-loop fastener is attached to the back surface and is coupled to the hook-and-loop fastener attached to the shoelace portion of the safety shoe SH. The protector 100 according to this embodiment is similar to the safety shoe S.
Since it is configured to curve from the outer side to the inner side toward the toe side of H, the right and left sides have different shapes and are mirror-symmetrical.

The core member 1 is curved so as to conform to at least the shape of the instep SH2 of the safety shoe SH, and by bending the core member 1, strength can be obtained even with a relatively thin iron plate. The core member 1 according to the present embodiment is arranged such that the upper end portion of the iron plate SH1 of the toe portion of the safety shoe SH is located near the edge portion on the side of the instep portion SH2, specifically, at a position where it slightly overlaps with the instep portion of the foot. It is formed in a size that covers the whole. The core member 1 includes a curved portion 11 that covers the instep SH2 of the safety shoe SH.
And a leg portion that is formed integrally with the curved portion 11 and that prohibits the curved portion 11 from moving to the instep portion SH2 in a state where the curved portion 11 is separated from the instep portion SH2 by being grounded when it receives an impact. 12 and 12.

The curved portion 11 has a three-dimensional curved surface that bulges outward, and is slightly above the toe portion of the safety shoe SH, that is, along the shape of the instep SH2 on the ankle side, that is, the toe portion side, that is, the front end side. The shape is thin and spreads over the instep SH2. In this way, the bending portion 11 is made of a thin material and has a desired strength by being bent into a three-dimensional curved surface. A leg portion 12 is formed continuously with the curved portion 11.

The leg portion 12 is a portion extending vertically below the curved portion 11 and covers the side surface of the safety shoe SH when the protector 100 is attached to the safety shoe SH, and also provides a shock. The lower end edge 12a thereof is grounded when received.
The leg portion 12 has a lower end edge 12 at about a half of the thickness of the bottom member SH3 of the safety shoe SH, that is, at the center position in the thickness direction of the bottom member SH3 when the protector 100 is attached to the safety shoe SH.
The length is such that a is located. The left and right leg portions 12 are slightly inclined in the direction approaching from the vertical direction so that the side surface of the bottom member SH3 can be sandwiched.
That is, in the leg portion 12, the distance between the lower end edges 12a is
The width is set to be slightly smaller than the width of the bottom member SH3 of the safety shoe SH, and the lower end edge 12a is elastically biased in a direction toward each other. Further, the lower end edge 12a is folded back in order to increase the rigidity of the leg portion 12.

On the back surface of the core member 1, a bag body 2 as a cushioning member is detachably attached to the core member 1. The bag body 2 is made of, for example, a deformable material, for example, a thin film-like soft synthetic resin, and is formed into a bag shape in a sealed state. It is deformed when the pressure of the air enclosed inside exceeds a predetermined level. Such a bag body 2 is
It is detachably attached to the back surface of the core member 1, and is attached to the entire area of the back surface of the curved portion 11 and the region of the leg 12 in the vicinity of the curved portion 11. As described above, the thickness of the bag body 2 is such that the lower end edge 12a of the leg portion 12 is located substantially at the center in the height direction of the side surface of the bottom member SH3 of the safety shoe SH as described above. 1 is set to a thickness for lifting from the instep SH2. In addition to the bag body 2 described above, the cushioning member may be an elastic sponge-like member, styrofoam, or the like.

In such a structure, the protector 100
Has its front edge 100a slightly overlapped with the iron plate SH1 of the toe part of the safety shoe SH, and the front-rear direction position of the safety shoe SH is adjusted so that the entire part covers the instep portion SH2. Attach to. Specifically, the protector 100 is located above the instep portion SH2 of the safety shoe SH and is moved to the instep portion SH2 of the safety shoe SH. In this state, since the distance between the lower end edges 12a of the legs 12 of the core member 1 is slightly smaller than the width of the bottom member SH3, the protector 100 is placed on the protruding edge portion of the bottom member. It becomes a state. In this manner, with the lower end edge of the leg portion 12 of the core member 1 in contact with the bottom member of the safety shoe SH, the protector 100 is moved in the front-rear direction of the safety shoe SH so as to be in the position as described above. Adjust the position.

When the position of the protector 100 with respect to the safety shoes SH is determined, the protector 100 is placed on the safety shoes S from above.
It is pressed toward H, and the protector 100 is moved downward to a position where the bag body 2 does not deform and contacts the upper part of the safety shoe SH. Since the legs 12 of the core member 1 are biased toward each other, the lower end edges 12a of the legs 12 are the bottom members S of the safety shoes SH.
When reaching H3, the bottom member SH3 is sandwiched from the left and right, and this mounting position is maintained unless an impact force of a predetermined force or more is applied. Therefore, when walking, the protector 10
0 does not deviate from the safety shoes SH and hinders walking and work. After that, the mounting portion 31 is tied to the shoelaces of the safety shoes SH with a cord, and the protector 100 is coupled to the safety shoes SH.

The protective equipment 100 mounted on the safety shoes SH is
When a relatively lightweight article such as a tool or a bolt falls on it, the core member 1 receives the article and
The bag body 2 absorbs the impact due to the collision of the articles. If the impact force due to the collision is smaller than the predetermined force, the protector 100 does not move from the mounting position, and the impact transmitted to the foot is reduced only by the cushioning action of the bag body 2.

On the other hand, when a relatively heavy object is dropped, the impact force is larger than the predetermined force, and the protector 100 moves downward. The bag body 2 is deformed as if it is crushed. As a result, as shown in FIG. 5, the thickness of the bag body 2 becomes thin, a part of the bag body 2 bulges out from the back surface of the core member 1, and the lower end edge 12a of the leg portion 12 of the core member 1 is grounded. When the lower end edge 12a of the leg 12 of the core member 1 is grounded, the foot in the safety shoe SH is protected because the core member 1 does not move downward even if an object is placed thereon. Further, since the instep SH2 is inclined so that the toe side is lowered,
The object dropped on the protector 100 moves toward the toes.
In this case, since the protector 100 overlaps the iron plate SH1 of the toe portion of the safety shoe SH, the object smoothly moves in the direction of the toe and then falls from the toe to the tip.

Therefore, even if a relatively heavy object falls on the safety shoes SH, the feet can be surely protected. Moreover, since the bottom member SH3 of the safety shoe SH is mounted so as to be sandwiched by the lower end edge 12a of the leg portion 12 of the core member 1, the mounting can be facilitated and
Since it is not necessary to change the structure of the safety shoes SH at the time of mounting, it can be easily mounted on the existing safety shoes SH. Moreover, when the bag body 2 returns to its original state after the impact is removed, the buffering capacity of the bag body 2 is restored, so that the bag body 2 can be repeatedly used and the useful life can be extended.

The present invention is not limited to the embodiment described above.

In the above-described embodiment, the core member 1 is made of iron, but it may be made of a hard synthetic resin having high strength. The one made of such a hard synthetic resin can be made lighter than the one made of a metal. In the case of metal, the leg 1
The central portion of 2 may be cut into an arch shape to reduce the weight.

The core member may cover the upper part of the shoe and the toe part.
That is, in the above-described embodiment, the safety shoes having the iron plate attached to the toe portion have been described, but in order to be able to use the toe portion regardless of the presence or absence of the iron plate, the toe portion is continuously provided on the instep portion. The curved portion and the leg portion may have a shape extended in the toe direction so as to cover. In this case, the toe part and the instep part are connected by a hinge member,
It should be configured so that the toe is not overloaded when the instep is lifted during walking. In such a thing that protects even the toe part, it is not a work shoe such as the above-mentioned safety shoes, but it is attached to everyday shoes so that the safety shoes can be used in a relatively safe work environment. It is possible to ensure the same safety as when wearing. Moreover, since the shoe can be worn while wearing the shoe, the burden on the foot can be reduced by removing the shoe except when working, as compared with the case where the safety shoe is worn all day long.

In addition, the bag body 2 may be ruptured when an impact force of a predetermined force or more is applied to the core member 1 so that the impact force is not indirectly transmitted to the foot. . Even if the bag body 2 ruptures in this way, the curved portion 11 does not reach the instep portion SH2 of the safety shoe SH by the grounding of the leg portion 12, thus protecting the foot as in the above-described embodiment. be able to.

Further, in the bag body 2, even if the portion to be attached to the back surface of the curved portion 11 and the portion to be attached to the leg portion 12 are connected to each other by a thin portion having a different cross-sectional area. Good. With such a configuration, the attachment to the core member 1 can be facilitated. Further, the portion attached to the back surface of the curved portion 11 may be divided into a plurality of small chambers. In addition, a safety valve mechanism that operates at a predetermined pressure or higher may be provided so that the internal air is released when the internal pressure becomes a predetermined pressure or higher when receiving an impact.

In addition, the configuration of each part is not limited to the illustrated example, and various modifications can be made without departing from the spirit of the present invention.

[0025]

As described above, according to the present invention,
That is, when the core member is not shocked,
The lower edge of the leg of the core member is held at a position higher than the bottom surface of the shoe, that is, at a floating position by the cushioning member, so that it can be worn without disturbing walking.

When a shock is applied to the core member,
The cushioning member shrinks according to the size of the shock to absorb the shock and protect the instep of the foot from the shock, and the lower edge of the leg touches the ground with the curved part separated from the instep. Most of the impact applied to the core member is not transmitted to the instep portion, and the grounded core member can prevent the impact and the weight due to the fall of the article and protect the foot.

[Brief description of drawings]

FIG. 1 is a side view showing a state in which a safety shoe according to an embodiment of the present invention is attached.

FIG. 2 is a front view of the same embodiment.

FIG. 3 is a plan view of the same embodiment.

FIG. 4 is a side view of the same embodiment.

FIG. 5 is a side view showing a state when a shock is applied in the same embodiment.

[Explanation of symbols]

1 ... Core member 2 ... bag 11 ... Curved part 12 ... legs 12a ... bottom edge SH2 ... Instep

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) A43B 1/00-23/30 A43C 1/00-17/06 A43D 1/00-119/00

Claims (2)

(57) [Claims] 1. A core member which is rigid and is curved so as to follow at least the shape of the upper part of the shoe, and a cushioning member which is provided on the inner surface of the core member and buffers the impact received by the core member. In a shoe protector attached to a shoe so as to cover at least the upper portion of the shoe, the core member has a curved portion that covers the upper portion of the shoe, and the curved portion is grounded when the curved portion is impacted. Is provided with a leg portion that prohibits the curved portion from moving toward the instep portion while being separated from the instep portion, and the cushioning member becomes thin when the core member is impacted, and the core member is impacted. In a state other than the above, a shoe protector having a thickness that holds the lower edge of the leg portion at least above the bottom surface of the shoe. 2. The shoe protector according to claim 1, wherein the cushioning member is a deformable bag containing air.