JP2007097751A - Safety shoe for clean room - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety shoe for a clean room, comfortable to wear even if the insteps of wearers are different differ in size. <P>SOLUTION: The safety shoe 1 for the clean room relates to the shoe with flaps and a main body part 3. The shoe is provided with a cylindrical hood 13 of which one end is integrally formed with and provided on an instep leather part of the main body part 3 so as to encircle a putting-on opening 7 and the flaps 9 and 11 of the main body part 3, a shoelace 14 provided between each of the flaps 9 and 11 of the main body part 3 for pressing the instep of the wearer and formed of an elastomer and an adjustment means 15 for adjusting length of a position of the shoelace 14 for pressing the instep. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a safety shoe for a clean room, and particularly relates to an improved comfort.

  Conventionally, as shown in FIG. 4, a clean room safety shoe 101 having a structure in which a hood 105 is provided on a so-called pump-type safety shoe main body 103 is known.

  On the front side of the main body 103, a tip 107 is provided to protect a toe of a person who wears it. The tip 107 is made of a hard member such as steel. Further, the lower end of the cylindrical hood 105 is provided integrally with the main body 103 inside the upper leather of the main body 103.

In addition, as a literature regarding the conventional safety shoes, the nonpatent literature 1 can be hung, for example.
Structure and name of each part of safety shoes, [September 12, 2005 search], Internet <URL: http: // www. ic-net. or. jp / home / aoki-koj / kouzou. html>

  By the way, the general safety shoes are provided with the hard tip 107 as described above. Further, in order to prevent the toes and toes of the person wearing the shoe from hitting the toe 107 and feeling uncomfortable, the space inside the tip of the safety shoe is widened. On the other hand, the foot of the person who wears the shoe is appropriately fixed to the safety shoe by appropriately pressing the back of the person's foot using a shoelace or the like.

  However, in the conventional pump-type safety shoes 101, the foot F of the person who wears the shoes is not properly fixed to the safety shoes 101 even though the inner space of the tip is widened. As shown, the foot F of the person wearing the safety shoes 101 moves, and the toes and toes of the person wearing the safety shoes 101 may hit the toe 107 and feel uncomfortable.

  Therefore, as shown in FIG. 5, a clean room safety shoe 111 having a configuration in which a hood 115 is provided on a so-called slip-on type safety shoe main body 113 provided with a leading end 117 can be considered.

  According to the safety shoe 111 for the clean room, the person's foot F worn by the elastic body 119 such as rubber can be appropriately fixed to the safety shoe 111, so that the internal space of the distal end portion of the main body 113 is widened. Nevertheless, the foot F of the person wearing the safety shoes 111 is appropriately fixed, and the possibility that the toes and toes of the person wearing the safety shoe 111 may hit the tip core 117 can be eliminated.

  However, the size of the upper part of the foot of the person who wears it varies, and as described above, the foot of the person who wears the foot can be appropriately fixed to the safety shoe 111 simply by pressing the upper part of the foot with the elastic body 119. However, there is a problem that the comfort is deteriorated.

  That is, when a person with a small size of the upper part of the foot (size around the upper part) wears the safety shoes 111, the elastic body 119 cannot hold the upper part, and wears the pump type safety shoes 101. Similarly to the case, the foot moves in the front-rear direction with respect to the safety shoe 111, and the comfort is deteriorated.

  On the other hand, if a person with a large instep size (size around the instep) wears the safety shoes 111, the pressing force by the elastic body 119 increases and the impression that the safety shoes worn are tight is comfortable. Becomes worse.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a safety shoe for a clean room that is comfortable to wear even if the size of the upper part of the foot of the person wearing it is different.

  According to the first aspect of the present invention, in a safety shoe for a clean room having a main body composed of blade-type boots, one end portion of the main body portion is closed so as to surround the mouth of the main body portion and the blade. A cylindrical hood provided integrally with the leather, an elastic shoelace provided between each blade of the main body to hold the upper of the person's foot, and the upper of the foot A safety shoe for a clean room having adjustment means for adjusting the length of the portion of the shoelace for holding the shoe.

  According to the present invention, it is possible to provide safety shoes for a clean room that can be worn comfortably even if the size of the back of a person's foot is different.

  1 is a perspective view showing a schematic configuration of a safety shoe 1 for a clean room according to an embodiment of the present invention, FIG. 2 is an enlarged view of a portion II in FIG. 1, and FIG. 3 is a portion III in FIG. FIG.

  Safety shoes for clean rooms (hereinafter sometimes referred to simply as “safety shoes”) 1 are short-type shoes (short-type shoes that are not knitted) that are blade-type (preferably, outer-blade type having outer blades 9 and 11). A main body 3 is provided. A cylindrical hood 13 is provided on the upper part of the main body 3, and a tip 5 made of steel or reinforced resin for protecting a toe of a person who wears it at the tip of the main body 3. Is provided.

  The hood 13 is provided to prevent fine dust from coming out of the safety shoes 1 when the safety shoes 1 are worn. It comes to cover. Further, the hood 13 is provided integrally with the upper leather of the main body 3 at one end so as to surround the mouth 7 of the main body 3 and the blades 9 and 11.

  An elastic shoelace 14 is provided between the blades 9 and 11 of the main body 3 to hold the back of the person's foot, and further to hold the back of the person's foot. An adjusting means 15 for adjusting the length of the shoelace 14 is provided.

  The heel portion of the foot opening 7 of the main body 3 is provided with a guide portion 17 for preventing the heel from being caught on the heel portion of the foot opening 7 when the safety shoes 1 are worn. This guide part 17 is comprised by the rear leather 19, for example.

  The rear leather 19 is provided at the rear part inside the main body 3 and extends above the mouth 7 by a predetermined width and a predetermined height. And the edge part of the part of the rear leather 19 extending upward is fixed integrally by sewing to the hood 13 over substantially the front length. In addition, the site | part extended above the said rear leather 19 exists in the food | hood 13 so that it may already be understood. Moreover, the width | variety of the said extension part of the rear part leather 19 is so narrow that it goes upwards.

  The adjusting means 15 is constituted by a stopper 21 that can be adjusted by engaging the shoelace 14 with the length of a portion of the shoelace 14 for holding the upper part of the foot of the person who wears the shoe.

  More specifically, the stopper 21 includes a housing 23 having two through-holes 27 and two through-holes similar to the through-hole 27 and is disposed on the housing 23 inside the housing 23. On the other hand, the plate-shaped moving member 25 is movable in a direction substantially perpendicular to the direction in which the through hole 27 is formed.

  The moving member 25 is urged in the direction opposite to the arrow AR1 shown in FIG. 2 by an elastic body such as a spring (not shown), and is not dropped from the housing 23 by a locking portion (not shown). .

  In a normal state, the moving member 25 is biased, so that the position of each through hole of the moving member 25 with respect to each through hole 27 of the housing 23 is shifted. A force in the shearing direction is applied to the lace 14 so that the stopper 21 is fixed to the lace 14 so that the length of the lace 14 that holds the back of the foot of the person wearing the safety shoe 1 can be fixed.

  On the other hand, when a person wearing safety shoes 1 pushes the moving member 25 into the housing 23 in the direction of the arrow AR1, the positions of the through holes 27 of the housing 23 and the through holes of the moving member 25 are equal to each other. In addition, the stopper 21 can move freely with respect to the shoelace 14 and can adjust the length of the shoelace 14 that holds the back of the foot of the person wearing the safety shoe 1. As already understood, the shoelace 14 and the stopper 21 exist inside the hood 13.

  According to the safety shoe 1 for the clean room, the elastic shoelace 14 is used to hold the upper part of the wearer's foot, and the length of the elastic shoelace 14 (to hold the upper part of the person wearing the shoe). The adjustment means 15 for adjusting the length of the shoelace 14 is provided, so if the length of the shoelace 14 is adjusted when the safety shoe 1 is first worn, the length of the shoelace 14 is adjusted thereafter. Even without this, it is possible to appropriately press down the upper part of the foot of the person who wears the shoelace 14, and it is possible to avoid the toes and fingers of the person who wears the shoe from colliding with the tip. And it is possible to provide safety shoes for clean rooms that are comfortable to wear for various people with different sizes of the upper part of the foot.

  Moreover, since the main-body part 3 is made into the outer blade type | mold, while the amount of adjustment of the length of the shoelace 14 can be enlarged, it can respond to the size of the instep part of the wide range, Even after the length has been adjusted, it is possible to increase the amount of deformation of the part that holds down the instep of the person who wears it, making it easier to wear the safety shoes 1 and reducing the feeling of tightening due to the shoelace 14. Comfort can be further improved.

  By the way, as shown in FIG. 5, in the conventional safety shoe 111 for clean rooms, the elastic body 119 and the like are provided, so that the hood 115 is the main body so that the lower end of the hood 115 surrounds the mouth of the main body 113. Since it is provided on the front side of the upper leather of the portion 113, a step 120 is formed between the rear portion 121 of the mouth of the main body portion 113 and the hood 115.

  Therefore, when a person wears the conventional clean room safety shoes 111, the rear part 121 of the mouth of the main body 113 is caught on the heel of the foot, and the rear part 121 of the mouth of the main body 113 in the direction indicated by the arrow in FIG. It bends inward, making it difficult to wear the safety shoes 111.

  However, since the safety shoe 1 for the clean room is configured as described above, there is no step 120 (step as shown in FIG. 5) between the hood 13 and the rear leather 19, and the rear leather 19 functions like a shoehorn. Therefore, when a person wears the safety shoes 1, it is possible to avoid a situation in which the rear of the mouth 7 turns over the rear part of the mouth 7 of the main body 3 as shown in FIG. It can be worn smoothly without any sense of incongruity.

  The safety shoe 1 is a safety shoe for a clean room having a main body composed of short shoes, and one end of the safety shoe 1 is integrated with the upper leather of the main body so as to surround the mouth of the main body and the blades. A cylindrical hood, an upper holding part provided on the upper leather of the main body part to hold down the upper part of the person's foot, and elasticity of the person wearing It is an example of the safety shoes for clean rooms which has the adjustment means which can adjust the magnitude | size of the said upper part holding | maintenance part in order to match with the size of the upper part of a foot.

  That is, for example, a safety shoe for a clean room may be configured using a Velcro (registered trademark) type main body, and at least a part of the Velcro type upper pressing portion may be configured by an elastic body.

It is a perspective view which shows schematic structure of the safety shoe for clean rooms which concerns on embodiment of this invention. It is an enlarged view of the II section in FIG. FIG. 3 is an enlarged view of part III in FIG. It is a figure which shows the safety shoes for the conventional pumps type clean rooms. It is a figure which shows the safety shoes for slip-on type clean rooms. It is a figure which shows the safety shoes for slip-on type clean rooms.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Safety shoes for clean rooms 3 Body part 5 Toe core 7 Foot 9, 11 Blade 13 Hood 14 Shoelace 15 Adjustment means 17 Guide part 19 Rear leather 21 stopper

Claims (1)

In safety shoes for clean rooms equipped with a main body composed of feather-type boots,
A tubular hood having one end integrally provided on the upper leather of the main body so as to surround the mouth and the blades of the main body;
An elastic shoelace provided between the blades of the main body to hold the back of the person's foot;
Adjusting means for adjusting the length of the portion of the shoelace for pressing the upper part of the foot;
A safety shoe for a clean room characterized by comprising:

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