Work shoes
The work shoes with stretchable and grip-enhanced design, featuring anti-slip coatings and double cushioning, address the discomfort and slipping issues of conventional indoor shoes, ensuring stability and comfort in poor footing environments.
Patent Information
- Application Number
- JP2021160451
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-09-30
- Publication Date
- 2026-01-08
- Estimated Expiration
- 2041-09-30
AI Technical Summary
Existing indoor work shoes with stitching on the sole cause discomfort and are prone to slipping off due to gaps between the sole and upper, making them uncomfortable and difficult to wear in places with poor footing.
The work shoes feature an upper part made of stretch fabric with enhanced elasticity in the longitudinal direction, sewn together with grip fabric using an overlock stitch, and treated with anti-slip coatings on the upper and sole, along with double cushioning from the heel to the arch for improved stability and comfort.
The shoes provide enhanced grip and comfort, reducing slipping and fatigue when working in poor footing conditions, allowing for stable posture changes and easy wear over outdoor shoes.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to indoor work shoes, and more particularly to indoor work shoes suitable for use in work in places where footing is poor. [Background technology]
[0002] Conventionally, sock covers have been provided with stitching on the sole or toe side of the sole, but when stitching is provided on the sole, the convex stitching causes discomfort to the sole of the foot when walking or running, reducing comfort when wearing them (Patent Document 1). Also, in some cases, fabric for covering the upper is sewn to both sides of the upright wall that forms the sole on the toe side, but there is a risk of too much space (gap) being created between the upright wall-shaped sole and the fabric for covering the upper, resulting in a loose fit between the sole and the toe or instep, making the sock cover more likely to slip off and reducing comfort when wearing them (Patent Document 2). Therefore, sock cover-like room shoes have been developed that have no stitching on the sole, do not cause discomfort like a foreign body when worn, do not cause fatigue when worn, and are comfortable to wear (Patent Document 3). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Jikko No. 14091-1966 [Patent Document 2] Japanese Utility Model Application Publication No. 53-68333 [Patent Document 3] Patent No. 6120487 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]
[0004] In the past, when working in places with poor footing, people often wore outdoor shoes that were difficult to slip off. However, outdoor shoes are heavy, difficult to put on and take off, and have problems with adapting to changes in posture.
[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide work shoes suitable for use when working in places with poor footing. [Means for solving the problem]
[0006] The work shoes of the present invention are room shoes having an upper part and a sole part, The upper part is configured with an upper toe part and an upper heel part made of a stretch fabric having elasticity, and an upper side part made of a grip fabric, and the stretch fabric of the upper toe part and the upper heel part has a greater elastic modulus in the longitudinal direction than in the width direction. It is characterized by: In the above work shoes, the upper part is The aforementioned Upper toe area, The aforementioned Carapace margin and The upper The heel portion may be made of a single piece of fabric sewn together. In the above work shoes 、 The stretch fabric and the grip fabric may be sewn together by an overlock stitch.
[0007] In the above work shoes, The surface of the upper side is treated with an anti-slip coating. It may be characterized by the fact that In the above work shoes, The upper The back surface of the pad may be provided with an anti-slip treatment. In the above work shoes, The sole is made of a grip fabric, The shoe may be characterized in that the inner sole is treated with an anti-slip coating. In the above-mentioned work shoes, the sole of the foot is made of a thick, cushioned neoprene fabric with neoprene material between the fabric from the heel to the arch. is provided It may be characterized by the fact that In the above-mentioned work shoes, the anti-slip treatment may be a silicone print. [Effects of the Invention]
[0008] According to the present invention, it is possible to provide work slippers suitable for use when working in places with poor footing. [Brief explanation of the drawings]
[0009] [Figure 1] 1A and 1B are plan views of work shoes according to the present invention, in which (a) is a view omitting the anti-slip treatment, and (b) is a view illustrating the anti-slip treatment. [Figure 2] 1A and 1B are bottom views of indoor work shoes according to the present invention, in which (a) is a view omitting the anti-slip treatment, and (b) is a view illustrating the anti-slip treatment. [Figure 3] 1A and 1B are bottom perspective views of work shoes according to the present invention, in which (a) is a view omitting the anti-slip treatment, and (b) is a view illustrating the anti-slip treatment. [Figure 4] 1A and 1B are top perspective views of work shoes according to the present invention, in which (a) is a view omitting the anti-slip treatment, and (b) is a view illustrating the anti-slip treatment. [Figure 5] 1A and 1B are perspective views showing the state of putting on sandals while wearing the work shoes of the present invention, where (a) is a view omitting the anti-slip treatment, and (b) is a view showing the anti-slip treatment. [Figure 6] 1A and 1B are perspective views showing the state in which the work slippers of the present invention are worn with the heels stepped on, where (a) is a view omitting the anti-slip treatment, and (b) is a view showing the anti-slip treatment. DETAILED DESCRIPTION OF THE INVENTION
[0010] We all see people wearing room shoes in their daily lives, using a step stool, stepladder, or folding ladder to do various tasks indoors, on the terrace, or around the house, such as changing light bulbs, taking things in and out of cupboards, and cleaning high places. The inventor discovered that when room shoes are worn, there are no gaps between the fabric covering the sole, upper, and heel, and that the shoes are made less likely to slip off by providing anti-slip treatments on the sides of the upper, the underside of the upper at the opening, the bottom, and the insole, and that even if stitching is provided on the sole, by providing double cushioning from the heel to the arch, the convex stitching does not cause discomfort like a foreign body when worn, allowing the wearer to stand steadily on a stepladder or the like, and reducing fatigue, and thus completing the present invention.
[0011] [Work room shoes] The work slippers of the present invention will be described with reference to Figures 1 to 5. The work slippers of the present invention have the following features. (1) A pair of room shoes 1 having an upper part 2 and a sole part 3. (2) The upper 2 is made of a single piece of fabric consisting of a grip fabric (described later) and a highly elastic stretch fabric, and the ends of each fabric are sewn together by overstitching. The fabric for the upper 2 is preferably a grip fabric and a highly elastic stretch fabric. The toe portion 2-1, heel portion 2-3, and the outer side of the opening upper 2-5 and the central upper 2-6 are made of highly elastic stretch fabric, while the side edges (2-2, 2-4, 2-7, 2-8) and the inner side of the opening upper 2-5 are made of grip fabric. The toe portion 2-1, side edges (2-2, 2-4, 2-7, 2-8), opening upper 2-5, central upper 2-6, and heel portion 2-3 are sewn together with overedge stitching 6, which provides highly elastic seams. The combined elasticity and slip resistance ensures the shoes are less likely to slip off and provide support when changing posture, such as leaning or crouching. Furthermore, even if the right or left side of the sole of the foot is lifted, the non-slip treated upper side edges (2-2, 2-4, 2-7, 2-8) can come into contact with the floor or ceiling, providing grip. (3) The upper opening 2-9 has a rubber rim. The back of the upper opening 2-5 is treated with a non-slip coating. In addition, the front right side 2-7 and the front left side 2-8 of the upper are also treated with a non-slip coating. This ensures that even if you wear commercially available sandals while wearing the room shoes 1, the sandals will not slip off easily. (4) The sole 3 is made of double anti-slip fabric on the bottom surface 3-1 and the inner sole 3-2, and double cushioning is provided from the heel to the arch 3-3, contributing to the shoes' resistance to slipping off and the ability to brace when changing posture, such as leaning or crouching. The double cushioning is achieved by using thick, cushioned neoprene fabric with neoprene material between the fabrics.
[0012] "Stretch fabric" as used in this specification refers to fabric that stretches in the vertical or horizontal direction, or both. The degree to which a stretch fabric stretches is determined by the material and weaving method used in the fabric. The weaving method is also important; a tightly woven fabric does not have much stretchability, but by weaving it in a way similar to knitted fabric or by adding twist to the yarn, the fabric becomes stretchy. By devising the material and weaving method, stretch fabrics that stretch well can be made and are sold commercially. There are three types of stretch fabric: "1WAY", "2WAY" and "4WAY", with 1WAY being a fabric that stretches in either the vertical or horizontal direction, 2WAY being a fabric that stretches in both the vertical and horizontal directions, and 4WAY being named to mean "stretches in four directions: up, down, left and right", but in reality it is synonymous with 2WAY.
[0013] Stretch material refers to a fabric or material with elasticity, and in the present invention, 100% nylon stretch material is exemplified as a preferred material for the upper of the outer material, but is not limited thereto. Highly elastic stretch material can be used, such as nylon stretch material, which is characterized by high durability, heat resistance, elasticity, and low moisture absorption, and its composition is preferably, but not limited to, 100% nylon. Although it has a tight weave and is not very stretchable, it is desirable to use a 100% nylon stretch material upper fabric with a higher modulus of elasticity in the longitudinal direction than in the transverse direction.
[0014] [Grip fabric with anti-slip properties] The bottom surface 3-1 and the inner sole 3-2 of the sole 3 are made of grip fabric with a non-slip surface. The "grip fabric" referred to in this specification is fabric with a non-slip surface. The upper side edges (2-2, 2-4, 2-7, 2-8) of the upper part 2 and the inside of the upper opening 2-5 are made of grip fabric. The grip fabric in the embodiment described below features a three-dimensional silicone-printed chain-like design and has anti-slip properties. Preferably, the silicone print is applied to a 100% polyester fabric. The anti-slip treatment on the rear upper side edges (2-2, 2-4) is applied longitudinally from the edge of the opening toward the heel, for example, over a length of 3 cm or more (preferably 5 cm or more). Similarly, the anti-slip treatment on the front upper side edges (2-7, 2-8) is applied longitudinally from the edge of the opening toward the toe, for example, over a length of 3 cm or more (preferably 5 cm or more). It is preferable that the anti-slip treatment on the rear upper side edges (2-2, 2-4) and the front upper side edges (2-7, 2-8) be continuous, without any interruptions.
[0015] Additionally, because silicone prints have low water absorption, the bottom of the sole is made of waterproof fabric with a non-slip finish. The waterproof fabric also makes it easy to wipe off dirt. The insole is made of grip fabric, allowing for proper adjustment of the slippage between the insole and the socks. Furthermore, the underside of the upper leather 2-5 at the opening is also non-slip, preventing slippage between the insole and the skin on the top of the foot or the socks when worn.
[0016] [Upper part sewn together with a single piece of fabric using an overlock stitch] In the present invention, the upper part consisting of the upper toe part 2-1, the upper side parts (2-2, 2-4, 2-7, 2-8), the opening upper 2-5, the upper center part 2-6, and the heel part 2-3 is sewn together into one piece of fabric with an overlock stitch 6. The upper toe part 2-1, the upper side parts (2-2, 2-4, 2-7, 2-8), the opening upper 2-5, and the upper center part 2-6 are sewn together, and the upper side parts (2-2, 2-4, 2-7, 2-8), the opening upper 2-5, the upper center part 2-6, and the heel part 2-3 are sewn together with an overlock stitch 6. Although the amount of sewing thread used is much greater than with lock stitching or double chain stitching, it results in highly elastic seams, and since the fabric is made of a highly elastic stretch material, the fit of the foot is improved, resulting in an excellent wearing experience.
[0017] [Overcoat Sewing] The sole 3 and the upper 2 are sewn together with an over-seam 6, which sews over the fabric, resulting in a stitching specification in which the seam is not felt on the foot.
[0018] [Upper opening] The work shoes 1 of the present invention have a depth and shape in the instep that makes them difficult to slip off when worn, and the opening (opening) has a raised instep leather design that makes them easy to put on and take off. The instep opening 2-9 has a rubber rim, making it easy to put on and take off.
[0019] [Double cushioning] To achieve double cushioning, we use a thick, cushioned neoprene fabric with neoprene material between the layers. Neoprene fabric is characterized by its resilient sponge, and in this invention, it is used from the heel to the arch area. Neoprene (registered trademark) is a synthetic rubber made by polymerizing chloroprene. It is less flammable than natural rubber, has excellent oil and weather resistance, and is used for electrical wire coatings and paints. Its balance of resilience and back stretch makes it neither too stiff nor too soft. Neoprene fabric is typically sandwiched between two sheets of polyester or nylon. A thickness of 1-2 mm is the maximum that a home sewing machine can withstand; thicknesses of 4 mm or more can only be sewn with an industrial sewing machine. In the work slippers of the present invention, the material from the heel to the arch of the foot is a thick, cushioned neoprene fabric with neoprene material between 100% polyester fabric, which has a three-dimensional silicone printed chainmail or honeycomb design and a printed area 5 on the surface that has anti-slip properties.
[0020] [Tag] The upper opening 2-9 has finger-sized tabs (tags) 4-1 and 4-2 on the toe side and the upper outer top of the heel. The upper fabric is made of a tightly woven, 100% nylon stretch material that is not very stretchy, which provides good stability when worn but reduces ease of putting on and taking off. Therefore, when putting on or taking off the shoes, the tab (tag) 4-1 on the toe side of the upper opening and / or the tab (tag) 4-2 on the upper outer top of the heel are pinched and pulled upward to widen the opening, allowing for easy putting on or taking off.
[0021] Each shoe weighs approximately 60g in size L (23.5-24.5). Despite being lightweight at approximately 60g per shoe, these work shoes are easy to wear and can be worn over outdoor shoes without slipping off, and are comfortable and tiring to wear. They fit the feet well and do not put strain on the feet. Furthermore, they are also easy to wear when working on a step stool, stepladder, or folding ladder, and allow you to stand steady even when changing posture, such as leaning or crouching. They are also easy to wash and dry, and are wash-resistant.
[0022] The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. [Example]
[0023] An embodiment will be described with reference to the accompanying drawings. An example of the work slippers 1 of the present invention is shown in Figure 1 as a plan view of the right foot portion of the work slippers, in Figure 2 as a bottom view of the right foot portion of the work slippers, in Figure 3 as a bottom oblique view of the right foot portion of the work slippers, in Figure 4 as a top oblique view of the right foot portion of the work slippers, in Figure 5 as a perspective view of the right foot portion showing the state when wearing the work slippers 1 while wearing commercially available sandals, and in Figure 6 as a perspective view of the right foot portion showing the state when wearing the work slippers with the heel stepped down.
[0024] The symbols in the figure are explained below. 1 denotes work shoes, and 2 denotes the upper. The upper 2 is made of highly elastic stretch fabric in the toe area 2-1, heel area 2-3, the outer side of the opening upper 2-5, and the center area 2-6 of the upper, and grip fabric in the rear right side 2-2, rear left side 2-4, the inner side of the opening upper 2-5, the front right side 2-7, and the front left side 2-8 of the upper. The stretch fabric and grip fabric are each cut from a single piece of fabric and sewn together into a single piece using an over-seam stitch 6, which creates a highly elastic seam. A tab (tag) 4-1 on the toe side of the opening is tucked in during the stitching. In addition, the sole 3 and upper 2 are sewn together with an over-seam stitch 6, which sews over the sole, resulting in a stitching specification that makes the seam invisible to the foot. When sewing, the tab (tag) 4-2 on the outer upper part of the heel is pinched in. The stretch fabric is made of 2-way tricot with a composition of 100% nylon. The grip fabric is made of 100% polyester with a silicone print, which has a three-dimensional silicone print design 5 and anti-slip properties. Even if you stand with the right or left side of your foot raised, the silicone-printed upper edges (2-2, 2-4, 2-7, 2-8) come into contact with the floor or ceiling, providing grip. The periphery of the upper opening 2-9 is formed with a rubber edge.
[0025] The sole 3 is made of a non-slip fabric with double cushioning to prevent slipping off and allow for steady support even when posture changes occur, such as leaning or crouching. The bottom surface 3-1 of the sole 3 is made of 100% polyester fabric with a non-slip function and features a three-dimensional silicon print design 5. The material for the heel to arch area 3-3 is made of thick, cushioned neoprene fabric with neoprene between the bottom surface 3-1 and the insole 3-2 fabric, and features a three-dimensional silicon print design and a non-slip print area 5 on the surface.
[0026] The sole 3 and upper 2 are sewn together using an over-seam stitch 6. The silicone-printed fabric on the bottom 3-1 provides a non-slip effect, and dirt can be easily wiped off. A grip fabric is attached to the underside of the upper opening 2-5 to prevent the insole 3-2 and the sock from slipping when worn. The silicone-printed fabric on the bottom 3-1 provides excellent non-slip properties, so the sock (foot) feels like it's sliding toward the toes over the insole 3-2. Therefore, the insole 3-2 is also provided with a silicone-printed non-slip surface, and a silicone-printed non-slip surface is also attached to the underside of the toe-side back of the upper opening 2-5. This stabilizes the sole of the sock, the insole 3-2, and the skin on the instep or the sock itself. The silicone print on the underside of the upper opening 2-5 further enhances this stability.
[0027] In this way, lightweight work shoes weighing less than 60g per shoe were completed. Such lightweight work shoes, while being difficult to slip off and able to maintain stability even when changing posture, such as leaning or crouching, are important factors for work shoes. Furthermore, since the work shoes of the present embodiment can be worn over sandals or other clothing, they offer the convenience of being able to go directly from the office or home to the work site wearing the work shoes, and then simply remove the sandals or other clothing to get to work immediately.
[0028] Although the preferred embodiments of the present invention have been described above, the technical scope of the present invention is not limited to the above-described embodiments. Various modifications and improvements can be made to the above-described embodiments, and such modifications and improvements are also within the technical scope of the present invention. For example, an embodiment in which the surface of the upper leather 2-5 of the opening is made of grip fabric with a non-slip finish is also within the technical scope of the present invention. [Explanation of symbols]
[0029] 1. Room shoes 2 Upper skin 2-1 Upper toe 2-2 Rear right side of the carapace 2-3 Heel 2-4 Left side rear of the carapace 2-5 Upper leather of the opening 2-6 Central part of carapace 2-7 Front right side of carapace 2-8 Front left side of carapace 2-9 Shoe opening periphery 3 Sole of the foot 3-1 Bottom 3-2 Insole 3-3 Heel to arch (double cushion) 4 Knob (tag) 5 Grip (anti-slip) 6 stitches (oversewing) 10 Sandals
Claims
1. In room shoes having an upper and a sole, The upper part is configured to include an upper toe part and an upper heel part made of a stretch fabric having elasticity, and an upper side part made of a grip fabric, The stretch fabric of the upper toe portion and the upper heel portion has a greater modulus of elasticity in the longitudinal direction than in the width direction.
2. 2. The work shoes according to claim 1, wherein the upper is made of a single piece of fabric in which the upper toe portion, the upper side portion, and the upper heel portion are sewn together.
3. 3. The work shoes according to claim 2, wherein the stretch fabric and the grip fabric are sewn together by an overlock stitch.
4. Work shoes as described in any one of claims 1 to 3, characterized in that the surface of the side edge of the upper is treated with an anti-slip coating.
5. Work shoes as described in any one of claims 1 to 4, wherein the back surface of the upper leather portion is treated with an anti-slip coating.
6. Work shoes as described in any one of claims 1 to 5, wherein the sole is made of grip fabric and the inner sole is treated with an anti-slip coating.
7. 7. The work shoes according to claim 1, wherein a thick cushioning neoprene fabric is provided from the heel to the arch of the foot on the sole, with neoprene material interspersed between the fabric.
8. 7. The work shoes according to claim 4, wherein the anti-slip treatment is a silicone print.
Citation Information
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