JP2014200300A - Overshoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an overshoe capable of securing insulation properties of a worker's foot, with a safety shoe put thereon.SOLUTION: An overshoe 1 includes a shoe cover body 10 that is formed of an insulation material, has an opening 11 from which a safety shoe is inserted/removed, and covers the safety shoe. The front-side peripheral edge 13a of the shoe cover body 10 connected to the opening 11 has a bellows-like expansion/contraction part 17 that is expandable/contractable in the circumferential direction of a front-side peripheral edge 13a. The expansion/contraction part 17 has, at the outside thereof, a belt 40 that extends along the expansion/contraction direction of the expansion/contraction part 17, and is laid across the shoe cover body 10 to fasten the shoe cover body 10. When the belt 40 is fastened, the safety shoe inserted in the shoe cover body 10 is brought into close contact with the shoe cover body 10.

Description

  The present invention relates to an overshoe that covers a shoe and ensures insulation.

  Conventionally, an operator generally wears safety shoes in order to prevent an external force from acting on an operator's foot to damage the foot. In addition, when performing inspection work for electric lines and electrical equipment, a voltage detection work is performed in order to confirm whether or not the work site is charged in advance. When performing this electric detection work, the worker wears insulation equipment such as insulating gloves and rubber boots to prevent electric shock.

  When an operator wearing such safety shoes performs a voltage detection operation, it is common to take off the safety shoes and change to rubber boots (see Patent Document 1). Since the rubber boots are formed of a rubber material having high insulation properties, it is possible to ensure the insulation of the operator's feet by wearing the rubber boots.

Handling of protective equipment for insulation, 8 pages (electric rubber boots), [online], [Search on March 25, 2013], Internet <URL: http://www.kdh.or.jp/pdf/safe /protection/01.pdf>

  Conventional rubber boots are formed so that they can be inserted from below the knees to the toes, so that they are difficult to wear and take off. For this reason, when the electrical inspection work is completed in a short time, it is troublesome for the operator to change the boots from safety boots to rubber boots, and when the electrical inspection work is completed, the workers change from rubber boots to safety boots. Reduce the work efficiency of the entire work including electric work.

  Therefore, it is conceivable to wear rubber boots to perform electrical inspection work and other work, but in general, rubber boots are poorly breathable, and if you wear rubber boots for a long time, your feet and lower leg will be stuffy Therefore, the worker feels uncomfortable and the work efficiency tends to decrease. For this reason, carrying out work for a long time without wearing a rubber boot to cause an electric shock reduces work efficiency. Therefore, there is a demand for a means that can ensure the insulation of the operator's feet while wearing safety shoes.

  The present invention has been made to meet such a demand, and an object of the present invention is to provide an overshoe that can ensure the insulation of an operator's foot while wearing safety shoes.

  In order to solve such a problem, the overshoe of the present invention is a shoe cover formed of an insulating material, having a shoe cover main body portion that covers the shoe, having an opening portion through which the shoe can be inserted and removed, and connected to the opening portion. The peripheral part of the main body part is provided with a bellows-like expansion / contraction part that can expand and contract in the circumferential direction of the peripheral part.

  Further, the present invention is provided with a belt that extends outside the expansion / contraction part along the expansion / contraction direction of the expansion / contraction part and is hung around the shoe cover main body part to fasten the shoe cover main body part. The shoe can be closely attached to the shoe cover main body.

  Moreover, the outer surface part of the shoe cover main body part of the present invention is provided with a belt mounting part in which a hole part through which a belt can be inserted is formed.

  According to the present invention, by having the above characteristics, it is possible to provide an overshoe that can ensure the insulation of the operator's foot while wearing the safety shoe.

The diagonal front perspective view of the overshoe concerning one embodiment of the present invention is shown. The right view of the shoe cover main-body part of overshoe is shown. The diagonal front perspective view of a shoe cover main-body part is shown. The front view of a shoe cover main-body part is shown. Sectional drawing of the shoe cover main-body part equivalent to the IV-IV arrow of FIG. 4 is shown. The bottom view of a shoe cover main-body part is shown. The diagonal rear perspective view of an overshoe when a belt is fastened is shown.

  Hereinafter, the best embodiment of the overshoe according to the present invention will be described with reference to FIGS. Overshoes are shoe-like footwear that can be worn while wearing safety shoes. First, before explaining overshoes, safety shoes will be outlined with reference to FIG. For convenience of explanation, the toe side of the foot L is referred to as “front side”, and the heel side of the foot L is referred to as “rear side”.

  As shown in FIG. 2 (right side view), the safety shoe 70 includes a foot cover portion 71 and a cylindrical portion 75 extending upward from the foot cover portion 71. The foot cover portion 71 is formed in a bag shape so as to cover the foot L of the worker M. The “foot L” here refers to a portion from the heel of the worker M to the toe.

  The cylindrical portion 75 extends upward from the rear side of the foot cover portion 71 and is formed in a cylindrical shape so as to cover the lower portion of the lower leg K of the worker M. The “crus K” here refers to the part from the knee of the worker M to the heel.

  Next, the overshoe 1 of the present invention will be described with reference to FIGS. As shown in FIG. 1 (diagonal front perspective view), the overshoe 1 has a shoe cover body 10 having an opening 11 into which the safety shoe 70 (see FIG. 2) can be inserted and removed, and covering the safety shoe 70, and an opening. The bellows-like stretchable portion 17 provided on the front peripheral edge portion 13a connected to the front side of the opening portion of the peripheral edge portion 13 connected to the periphery of the portion 11, and the outer side of the expandable portion 17 extends around the shoe cover main body portion 10. Belt 40.

  As shown in FIGS. 1 and 2 (side view), the shoe cover main body 10 is integrally molded using a synthetic resin material (for example, an olefin elastomer) so as to cover the foot cover 71 of the safety shoe 70. It is shaped like a shoe. If an olefin elastomer is used as the material for the overshoe 1, the specific gravity is smaller than that of vinyl chloride or rubber, so that the weight of the product can be reduced.

  The shoe cover main body 10 has an opening 11 into which the safety shoes 70 can be inserted and removed at the upper part on the rear side in the front-rear direction, and a peripheral edge 13 that covers the foot cover 71 is formed around the opening 11. Yes. A plate-like main body portion side bottom surface portion 20 is formed at the lower portion of the peripheral edge portion 13 so as to contact the bottom of the foot cover portion 71 of the safety shoe 70. That is, the shoe cover main body 10 is formed in a shoe shape having the peripheral edge 13 and the main body portion side bottom surface 20.

  The peripheral edge portion 13 and the main body portion side surface bottom portion 20 have a substantially constant thickness (for example, about 3 mm) and are elastically deformable. The opening 11 is formed in a substantially rectangular shape in plan view, and the safety shoe 70 can be inserted therein. An inner space 21 into which safety shoes 70 can be inserted is formed inside the shoe cover main body 10. In addition, the size of the opening 11 and the internal space 21 has a size that can be inserted even if the size of the safety shoe 70 is different (for example, size 24 cm to 28 cm).

  The internal space 21 of the shoe cover main body 10 extends in a straight line in the front-rear direction, and has a size such that either the left or right safety shoe 70 can be inserted. For this reason, in the overshoe 1 of the present invention, the left and right safety shoes 70 can be inserted.

  The upper end portion of the shoe cover main body 10 extends slightly above the position of the ankle of the worker M wearing the safety shoes 70. For this reason, since it is not necessary to insert all the cylindrical parts 75 of the safety shoes 70, the safety shoes 70 can be easily inserted into and removed from the overshoes 1. A spatula 14 extending upward from the rear of the opening 11 is provided at the rear of the peripheral edge 13 of the shoe cover main body 10. When the safety shoe 70 is inserted into the overshoe 1 through the opening 11 by the spatula 14, the operator M can fix the position of the overshoe 1 by holding the spatula 14. The insertion / removal operation of the safety shoes 70 with respect to the shoes 1 can be facilitated.

  An insole 15 is provided at the bottom of the internal space 21 of the shoe cover main body 10. The insole 15 is a plate-like member having substantially the same shape as the bottom of the internal space, is formed of a synthetic resin material, has elasticity, and is deformable.

  As shown in FIGS. 3 and 4, a bellows-like stretchable portion 17 is provided on the front peripheral edge portion 13 a. The stretchable portion 17 is formed by alternately repeating the mountain fold and the valley fold in the width direction of the shoe cover main body portion 10 on the front side peripheral edge portion 13a. Each of the mountain-folded portion (hereinafter referred to as “mountain-folded portion 18”) and the valley-folded portion (hereinafter referred to as “valley-folded portion 19”) extends from the front end of the opening 11 to the front of the shoe cover main body 10. It extends in the front-rear direction across the part. In the present embodiment, the stretchable part 17 having five mountain folded portions 18 and four valley folded portions 19 is described. In addition, the number of the mountain fold portions 18 and the valley fold portions 19 is not limited to the above-described number, and when the shoe cover body portion 10 is fastened by the belt 40 (see FIG. 1), The number of the mountain fold portions 18 and the valley fold portions 19 may be any number as long as the number of the mountain fold portions 18 and the valley fold portions 19 can be reduced as long as the safety shoes 70 (see FIG. 2) can be brought into close contact with the shoe cover body portion 10 .

  When the belt 40 (see FIG. 1) that is arranged outside this and is stretched around the shoe cover body 10 is fastened, the mountain fold portion 18 and the valley fold portion 19 are bent. The entire stretchable portion 17 is reduced in the width direction of the shoe cover main body portion 10. On the other hand, when the fastened belt 40 (see FIG. 1) is released, the bent fold-folded portion 18 and valley-folded portion 19 return to their original positions, and the entire stretchable portion 17 expands.

  As shown in FIG. 4 and FIG. 5, the main body part side surface bottom part 20 of the shoe cover main body part 10 is inclined so that the front side part 20 a faces upward. For this reason, the worker can easily walk with the overshoes 1 attached to the safety shoes 70.

  Further, as shown in FIGS. 5 and 6 (bottom view), diamond-shaped cylindrical portions 20b are provided at the same interval on the front side and the rear side of the main body portion side front / bottom portion 20 of the shoe cover main body portion 10. A front bottom raising portion 20bf and a rear bottom raising portion 20br projecting from the part side front bottom portion 20 are formed. The front bottom raised portion 20bf and the rear bottom raised portion 20br are molded integrally with the main body side surface bottom portion 20. The front bottom raised portion 20bf and the rear bottom raised portion 20br can prevent the main body side surface bottom portion 20 from coming into contact with the ground and wear, and the main body side surface bottom portion 20 has a hole and is insulated. It is possible to prevent the possibility of the decrease. Moreover, the flow of material can be made smooth at the time of shaping | molding of the shoe cover main-body part 10 by making the cylinder part 20b into a diamond shape. In addition, the cylinder part 20b is not provided in the front-rear direction intermediate part of the front bottom raising part 20bf and the rear bottom raising part 20br, and the belt mounting part 25 for passing the belt 40 (see FIG. 1) is provided in this intermediate part. It has been.

  The belt mounting portion 25 is provided at the center in the width direction of the outer surface of the intermediate portion in the front-rear direction of the main body side surface bottom portion 20. The belt mounting portion 25 includes a belt-like body 26 having a front end portion integrally connected to the front bottom raised portion 20bf and a rear end portion integrally connected to the rear bottom raised portion 20br. A hole 27 through which the belt 40 can be inserted is formed between the belt-like body 26 and the outer surface of the main body portion side bottom surface 20.

  As described above, the belt 40 is wound around the shoe cover main body 10 while being inserted into the hole 27 of the belt mounting portion 25. For this reason, there is no possibility that a large load acts on a part of the belt 40 when the belt 40 is fastened, and the belt 40 can be prevented from being broken.

  As shown in FIG. 1, the belt 40 includes a belt-like belt main body 41 and a buckle 45 that is connected to the belt main body 41 and can adjust the length of the belt main body 41. The buckle 45 is plate-shaped and formed in a substantially rectangular shape in plan view, and a pair of holes 46 and 46 ′ formed in a substantially rectangular shape in plan view are provided on both sides of the buckle 45.

  The belt body 41 is made of a synthetic resin material and can be bent freely. One end 41 a of the belt main body 41 is connected to one end of the buckle 45. The other end 41b of the belt main body 41 is inserted into the hole 46 'on the other end side of the buckle 45, and from the hole 46' by the folded portion 42 formed on the other end 41b of the belt main body 41. Removal is regulated.

  A hook-and-loop fastener 48 is provided on a surface 41c on the other end side of the belt main body 41 that is connected to the folded portion 42. In the hook-and-loop fastener 48, hook portions 48 a that are densely raised in a hook shape and loop portions 48 b that are densely raised in a loop shape are connected to the side of the surface 41 c that is separated from the buckle 45. In the present embodiment, a hook portion 48 a is provided on the side close to the buckle 45, and a loop portion 48 b is provided on the side away from the buckle 45.

  The belt 40 is wound around the shoe cover body 10 of the overshoe 1 so that the hook-and-loop fastener 48 faces the front side.

  Next, a case where the operator wears the safety shoes 70 and the overshoes are attached to the safety shoes 70 will be described with reference to FIGS. 1, 2, and 7. First, as shown in FIG. 1, the belt 40 is loosened with respect to the shoe cover body 10 of the overshoe 1. That is, the hook portion 48 a of the hook-and-loop fastener 48 provided on the other end side of the belt main body portion 41 is peeled off from the loop portion 48 b, and the other end side of the belt main body portion 41 is fed out from the hole portion 46 ′ of the buckle 45. When the hook-and-loop fastener 48 is peeled off, the stretched portion 17 in the reduced state is extended, and the other end side of the belt main body portion 41 is drawn out from the hole portion 46 ′ of the buckle 45 so that the belt main body portion 41 is loosened. become. When the belt main body 41 is loosened, the opening 11 of the overshoe 1 opens greatly.

  When the opening 11 opens largely, the worker M wearing the safety shoes 70 inserts the safety shoes 70 into the overshoe 1 from the front end side of the safety shoes 70 through the opening 11 as shown in FIG. Then, as shown in FIG. 7, the other end 41 b of the belt main body 41 is pulled to the side away from the buckle 45, and the belt main body 41 is fastened to the shoe cover main body 10 of the overshoe 1. At the same time, the expansion / contraction part 17 shrinks in the width direction of the shoe cover main body part 10 and the peripheral edge part 13 of the shoe cover main body part 10 comes into close contact with the safety shoe 70 (see FIG. 2).

  And the hook part 48a of the hook-and-loop fastener 48 provided in the other end side of the belt 40 is affixed on the loop part 48b. Therefore, the belt 40 can be maintained in a state in which the overshoe 1 is in close contact with the safety shoe 70, and the possibility that the safety shoe 70 is detached from the overshoe 1 during work can be prevented. For this reason, it is possible to ensure the insulation of the foot of the worker M while wearing the safety shoes 70.

  In the above-described embodiment, the case where the expansion / contraction part 17 is provided on the front peripheral edge 13a in front of the opening 11 of the overshoe 1 is shown, but the left peripheral edge that connects the expansion / contraction part 17 to either the left or right of the opening 11 is shown. You may provide in the rear side peripheral part 13d connected to the part 13b or the right side peripheral part 13c, or the rear part of the opening part 11. FIG.

  When the expansion / contraction part 17 is provided in any of the left side peripheral part 13b, the right side peripheral part 13c, and the rear side peripheral part 13d, the expansion part 17 is provided in the opening 11 similarly to the case where the expansion / contraction part 17 is provided in the front side peripheral part 13a. An expansion / contraction part 17 is provided on the peripheral edge part 13 to be connected to be extendable / contractible in the circumferential direction. Further, the belt 40 is provided so as to hang around the circumferential portion 13. Further, the belt mounting portion 25 is provided at any position on the outer surface of the peripheral edge portion 13.

DESCRIPTION OF SYMBOLS 1 Overshoe 10 Shoe cover main-body part 11 Opening part 13a Front side peripheral part (peripheral part)
17 Stretchable part 25 Belt wearing part 27 Hole part 40 Belt 70 Safety shoes (shoes)

Claims (3)

A shoe cover body part that is formed of an insulating material and has an opening through which the shoe can be inserted and removed and covers the shoe;
An overshoe characterized in that a bellows-like stretchable part that can be stretched in the circumferential direction of the peripheral part is provided at the peripheral part of the shoe cover main body part connected to the opening. A belt capable of fastening the shoe cover main body part by extending the outside of the elastic part along the elastic direction of the elastic part and being hung around the shoe cover main body part;
The overshoe according to claim 1, wherein the shoe can be in close contact with the shoe cover main body by fastening the belt. The overshoe according to claim 2, wherein a belt mounting portion in which a hole portion through which the belt can be inserted is formed is provided on an outer surface portion of the shoe cover main body portion.

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