JP6407129B2 - Foot cover - Google Patents

Description

  The present invention relates to a foot cover.

  Patent Document 1 discloses a foot cover that covers the sole and the buttocks and exposes the instep and the ankle.

JP 2014-43662 A

  In the foot cover disclosed in Patent Document 1, since the wear mouth is formed relatively large so that a part of the foot cover is not exposed in the wearing state, the wearing position is shifted due to friction during walking or the like. Although some parts may come off, the slipping position is prevented from being displaced by the fact that multiple short-slip anti-slip sheets made of silicone resin, etc., affixed to the inner surface of the buttocks are arranged. ing.

  However, since such an anti-slip sheet is only attached to the inner surface of the heel part of the foot cover by a bonding means such as an adhesive, the bonding strength is reduced by multiple use, and the anti-slip is caused by friction during walking. Part of the seat may come off the foot cover. On the other hand, in order to prevent such a situation, even if the anti-slip sheet is to be incorporated into the knitting together with the knitting yarn of the foot cover, the anti-slip sheet is soft and has a predetermined width. It is difficult to knit with yarn.

  In addition, in a normal foot cover, a cloth or a belt-like elastic member in which elastic yarn is knitted is arranged in the entire area of the shoe mouth portion so that the shoe mouth portion is not displaced and removed from the inside of the shoe. However, by applying elasticity to the entire region, the wearing mouth portion contracts and the opening becomes small, and it becomes difficult to insert the toe when wearing.

  The present invention relates to an improvement of a conventional foot cover, and relates to the provision of a foot cover that suppresses slipping at a heel part, is excellent in fit of a mouth part, and is easy to wear.

  The present invention relates to a foot cover including a foot cover main body having a front-rear direction, a width direction, and a vertical direction, and having a heel portion and a wear mouth portion.

In the foot cover according to the present invention, the wear mouth portion includes front and rear end portions and both side edge portions extending in the front and rear direction between the front and rear end portions, and only the both side edge portions of the wear mouth portion are provided. Side elastic portions that are elastically extendable and extendable in the front-rear direction are disposed at both side edges , and at least a part of the inner surface of the flange portion forms the foot cover body. Non-slip means formed of a high-friction material knitted with a yarn and having a higher friction coefficient than the main yarn is disposed, and the side elastic portion includes a straight portion extending in the front-rear direction, and both side edges An inclined portion extending obliquely downward at the rear end of the straight portion in the vicinity of the boundary between the flange portion and the flange portion, and the inner surface of the flange portion is positioned between the convex lines and extends in the width direction. A plurality of recesses are located, The vertical dimension of Jo line is larger than the vertical dimension of the recess, wherein the recess does not contact the wearer's skin.

  As another embodiment of the foot cover according to the present invention, the straight portion of the side elastic portion has a bag shape.

  As still another embodiment of the foot cover according to the present invention, the slip preventing means is a plurality of convex lines extending in the width direction and spaced apart from each other in the vertical direction. The line has an upper portion composed of the main yarn forming the foot cover main body, and a lower portion knitted integrally with the upper portion by the high friction material.

  In another embodiment of the foot cover according to the present invention, the high friction material is a polyurethane yarn that is not covered.

  In the foot cover according to the present invention, since the side elastic portions that can be expanded and contracted in the front-rear direction are disposed only on the both side edge portions of the wearing mouth portion, the entire opening edge portion has an appropriate fit. It does not become difficult to insert the tip of the foot when it is worn by contraction. Also, the position during wearing is arranged by the presence of anti-slip means formed from a high friction material having a higher coefficient of friction than the main yarn, knitted with the main yarn forming the foot cover body on the inner surface of the buttocks. Misalignment is prevented and the manufacturing process is facilitated.

The drawings illustrate specific embodiments of the invention and include selective and preferred embodiments as well as the essential features of the invention.
The perspective view which shows the wearing condition of a foot cover. (A) The side view of a foot cover. (B) The perspective sectional view which follows the II (b) -II (b) line of FIG. (A) The figure which shows the inner surface of the collar part of a foot cover. (B) Sectional drawing which follows the III (b) -III (b) line | wire of Fig.3 (a). The figure which showed the process of knitting a wear mouth part from the upper side to the downward side including the side elastic part of a foot cover. Fig.5 (a) is a figure which shows the knitting process of the convex-shaped line of a buttocks. FIG. 5B is a diagram illustrating a state in which the meshes are knitted by the knitting process of FIG.

  Each of the following embodiments relates to the foot cover 10 shown in FIGS. 1 to 5 and includes not only an indispensable structure of the invention but also a selective and preferable structure.

  1 and 2, a foot cover 10 according to the present embodiment has a front-rear direction Y, a width direction X, and a vertical direction Z, and is a foot knitted in a mesh shape with main yarns (cotton yarn, nylon yarn, etc.). A cover body 11 is provided. The foot cover body 11 includes a heel part 13, a sole part 14, a side part 15, and a toe part 16. On the side of the upper end edge of the side portion 15, a wear mouth portion 17 that defines an insertion opening for a foot is located. Although not shown in the figure, the toe portion 16 has a plurality of insertion portions that are divided by an isolation wall for inserting the five toes of the first to fifth toes. In addition, the foot cover in this specification includes all clothing that covers relatively shallow feet, and includes, for example, socks covers, inner socks, cover socks, short socks, and the like.

  The wearing mouth part 17 includes a front end part 17a positioned on the toe part 16 side, a rear end part 17b forming an upper end edge of the heel part 13, and both side edge parts 17c extending in the front-rear direction X between the rear end part 17b, 17d. The rear end portion 17b protrudes upward from the front end portion 17a and the side edge portions 17c and 17d so as to cover the entire wearer's heel. In the present embodiment, the wear mouth portion 17 has an elliptical outer shape in plan view, but can take various shapes depending on the form of the foot cover.

<Side elastic part>
Referring to FIG. 2, in the side view of the foot cover 10, the wearing mouth portion 17 has side elastic portions 20 arranged only on both side edge portions 17 c and 17 d in the entire region. The side elastic portion 20 is a bag-like shape having a double structure defined by an inner layer, an outer layer, and an internal space 24 formed therebetween, and is different in elasticity from the main yarn used for the foot cover main body 11. A straight portion 21 knitted from the yarn and extending in the front-rear direction Y along the upper edges of the side edge portions 17c and 17d, and the rear end of the straight portion 21 in the vicinity of the boundary between the side portion 15 and the flange portion 13 And an inclined portion 22 extending rearward and obliquely downward. The straight portion 21 has a bag-like double structure, but the inclined portion 22 may have a single-layer structure instead of the bag-like double structure. The side elastic portion 20 can be formed by a knitting method described later. However, the straight portion 21 can be knitted by a tense knitting, and the inclined portion 22 can be knitted by a garter knitting.

  Conventionally, foot covers imparted with elasticity by arranging knitted fabric or flat rubber formed of elastic yarn extending in the circumferential direction over the entire region of the mouth portion are well known, but in such foot covers, While the entire area of the part expands and contracts, the adhesion to the foot improves, while the continuous opening and contracting in the circumferential direction reduces the size of the opening. It was a hassle.

  In the foot cover 10 according to the present invention, the elastic member such as elastic yarn is not disposed in the entire region of the wearing mouth portion 17 and is disposed only on the side edge portions 17c and 17d, whereby the side elastic portion 20 is provided. In the contracted state, the inner circumference dimension does not become so small that it is difficult to insert the toes, and the toes can be easily inserted without expanding the wearing mouth portion 17 with both hands when wearing. In addition, the side elastic portions 20 are disposed on the side edge portions 17c and 17d of the wearing mouth portion 17 to improve the adhesion to the side portion 15 of the foot in the wearing state, and when walking or taking off shoes, It is possible to suppress a part of the foot cover 10 from being bent or a wearing position from being displaced due to friction.

  Further, both side edge portions 17c and 17d of the wear mouth portion 17 are portions which are easily slid and smashed with the inner surface of the shoe when walking compared to other portions, but the side elastic portion 20 is a bag-shaped double. By having the structure, the fabric strength is higher than other parts having a single-layer structure, and even when used repeatedly, the side edges 17c and 17d are not partially broken. Further, when a belt-like elastic member such as a flat rubber is disposed on the entire circumference of the wearing mouth portion 17, there is a possibility that the air permeability may be lowered and the inside of the foot cover may be stuffed. By having the double structure in the shape, the internal space 24 is formed between the inner and outer layers, and the air permeability is excellent.

<Slip prevention means>
A plurality of convex lines (slip prevention means) 30 protruding from the inner surface of the flange 13 and extending in the width direction X while being spaced apart from each other in the vertical direction Z are provided on the inner surface of the flange 13. Each of the convex lines 30 has a higher coefficient of friction than the main yarn knitted together with the upper portion 33 formed by knitting the main yarn knitting the collar portion 13 and the main yarn knitting the upper portion 33. And a lower portion 34 formed from a high friction material. As the high friction material forming the lower portion 34, for example, an elastic yarn or silicone resin can be suitably used. When formed from an elastic yarn, an uncovered polyurethane elastic yarn (spandex yarn or the like) Is preferably used. Conventionally, polyurethane elastic yarn alone has been difficult to knit because of poor sliding in the knitting machine, so covered polyurethane elastic yarn has been used to knit together with the main yarn. By improving, it is possible to realize the braiding of the polyurethane elastic yarn alone. Specifically, the resistance by the tension desk for applying an appropriate tension to the main yarn and the elastic yarn is minimized, and each yarn in the auxiliary / sag preventing tension applying portion for feeding the yarn is sent. The degree of pulling was set to a minimum. Further, the occurrence of false detection by the yarn breakage detection unit is suppressed as much as possible, and the minimum detection level is adjusted so that the yarn breakage is detected. By setting such a manufacturing method not conventionally employed in a control program incorporated in the knitting machine, the manufacture of the foot cover 10 using only the knitting machine can be realized.

  Conventionally, in order to prevent the foot cover from coming off, for example, a foot cover that performs a silicon coating process in the form of dots or lines on the inner surface of the buttock is well known. Therefore, a manufacturing process increases and a cost burden increases. Further, when silicone rubber is pasted with an adhesive, the silicone rubber may be peeled off during wearing due to friction.

  In the foot cover 10 according to the present embodiment, since the high friction material is knitted together with the main yarn, the knitting process of the foot cover main body by the knitting machine and the process of sewing the elastic member to the wearing mouth portion by a sewing machine as in the conventional case. Therefore, the entire foot cover 10 can be manufactured by using only a knitting machine, so that productivity can be improved and costs can be reduced by simplifying the manufacturing process. In addition, polyurethane yarn has poor air permeability compared to cotton yarn and the like, and may cause the phlegm 13 to be stuffy, but the anti-slip means 30 is formed by a plurality of convex lines 30 extending in the width direction X. As a result, the contact area is reduced as compared with the case where the surface is fitted to the heel, and the recesses 35 located between the convex lines 30 do not contact the skin, so that the breathability is excellent. It can prevent stuffiness and suppress the occurrence of shoe rub due to stuffiness.

  In order to exhibit the effect of preventing slipping and the effect of air permeability, the vertical dimension Z (width dimension) W2 of the convex line 30 is preferably larger than the width dimension W3 of the concave part 35 in the vertical direction Z. Specifically, the dimension W2 is 1.2 to 2.0 times as large as the dimension W3. When the dimension W2 is 1.2 times or less than the dimension W3, the anti-slip effect is reduced, and the position of the collar portion 13 may be displaced. On the other hand, when the dimension W2 is 2.0 times or more larger than the dimension W3, the air passing through the recesses 35 may be deteriorated, so that the candy may become damp and uncomfortable. Moreover, it is preferable that the total area of the convex line 30 has a size of 60 to 80% of the entire area including the plurality of convex lines 30 and the plurality of concave portions 35 positioned therebetween.

  As described above, the side of the foot 17 is fitted to the foot by the side elastic portions 20 disposed on the side edges 17c and 17d of the mouth portion 17 so that positional displacement is suppressed, and the convex line 30 Since the slip of the part 13 is suppressed, the state in which the foot cover is stably in contact with both sides and the rear side of the foot is maintained, and it is possible to prevent the foot cover 10 from being removed when walking or taking off shoes. . In addition, by using an elastic yarn such as polyurethane yarn as the high friction material forming the convex line 30, it is excellent in stretchability and can improve the fit of the foot cover 10 to the foot together with the side elastic portion 20. .

<The knitting method of the side elastic part of the mouth part>
FIG. 4 shows a procedure for knitting the mouth portion 17 including the side elastic portion 20 from the upper side to the lower side. In FIG. 4, a portion indicated by a thick line is knitting with elastic yarns forming the side elastic portion 20, and the other portion is knitting with main yarns forming the foot cover body 11.

  Referring to FIG. 4, first, in knitting A, the right-side elastic yarn (spandex) is knitted together with the main yarn (cotton yarn), and both yarn paths are retracted once in the opposite direction for the next knitting. In the knitting B, since there is originally no mesh on the rear side, a new mesh is created on the rear side to prepare for the bag-like knitting of the side elastic portion 20. In such a stage, the width dimension (dimension in the vertical direction Z) W1 (see FIG. 2) of the side elastic portion 20 can be freely changed as appropriate. Next, in the knitting C, the bag-shaped side elastic portion 20 on the one side edge portion 17d side is formed by knitting back and forth and knitting back and forth.

  After knitting C, the main yarn is moved to the left in the knitting machine, and then knitting D is performed with the main yarn. The formation D has the same length in the wale direction as the formation A. In the knitting E, in order to avoid interference of the rear meshes knitted by the knitting B and C in the next knitting F, the rear meshes are transferred to the needles without the front meshes and retracted. In the knitting F, the process proceeds to the knitting of the left side rubber yarn, the yarn path is different from the thread path of the rubber yarn used in the knitting A, and the same knitting method is adopted. As a result, the side elastic portion 20 on the other side edge portion 17c side is formed. After knitting up to the knitting G, the mesh that has been retreated before in the knitting H is transferred to the rear side, and preparation for the next side elastic portion 20 is prepared.

  After knitting using the main yarn in knitting I, the knitting is moved to the right side in order to prevent the next knitting J. In the knitting J, the side elastic portion 20 is knitted, and in the final knitting on the rear side of the next knitting K, the knitted fabric is knitted with the hook on the right side of the first knitting width, thereby knitting with the main yarn. And become one. After the knitting K is finished, the knitting L is knitted with the main yarn, and the knitting M performs the same evacuation process as the knitting E. The knitting N moves to the left side while knitting the rear side, and performs the same knitting as the right side. After completing the knitting O, the width dimension W1 of the side elastic portion 20 can be freely set by repeatedly performing the knitting H to O. After arbitrarily repeating the knitting H to O, the elastic part by the elastic yarn is not transferred to the empty needle as in the case of M · M ′, but P · P ′ is transferred to the mesh existing on the front side as the final pattern. Finish the bag-shaped knitting.

  In the main knitting process, the main yarn for knitting the foot cover main body and the elastic yarn for knitting the high-elasticity part are connected by the hook without performing the bind off processing, compared with the case of connecting by the bind off processing. Since the mesh is thin and no step is formed at the connection location, the wearer does not feel uncomfortable.

<Knitting process of convex line of buttock>
Fig.5 (a) is a figure which shows the knitting process of the convex line 30 of the collar part 13, FIG.5 (b) is a figure which shows the state which knitted and the mesh | superposition was piled up. 5 (a) and 5 (b), the front high friction material (polyurethane yarn, 100%) forming the lower portion 34 of the convex line 30 is indicated by a bold line, and the other portions are the foot cover body 11. Knitting with the main yarn of the rear eye to form.

  First, in knitting S1, a new mesh is created on the front side to prepare for knitting of the slip prevention means 30 of the heel part 13. By knitting the hooks back and forth, the front side can be overlaid with a new mesh and the back side overlaid with the existing mesh. As a result, it is possible to prevent removal of the mesh before knitting later.

  In knitting S2, the front mesh is continuously knitted. By not creating the rear mesh at this time, the number of courses differs between the front side and the rear side, and the convex line 30 extending in the width direction X is formed on the inner surface of the collar portion. Note that the width dimension (vertical dimension) W2 of the convex line 30 can be freely changed as appropriate according to the mesh knitting method in the knitting S2. In the knitting S3, when the mesh knitted in the knitting S2 is transferred to the knitting S4 and moved from the front side to the rear side by the function, the mesh knitted in the knitting S2 is unstable, so it is surely knitted once with the main yarn. Create a mesh that can be transferred to.

  In the knitting S4, the former mesh is connected to the latter mesh, and the knitting of the knitting S2 is once ended. Thereby, a plurality of convex lines 30 are formed on the inner surface of the flange 13. In knitting S5, only the rear side is continuously knitted with the main yarn. By repeating the knitting S2 and the knitting S5 as a set, the convex line 30 and the concave portion 35 positioned between them are formed.

  In the foot cover 10, the knitting method that is generally adopted as a method of knitting socks including the foot cover 10, for example, flat knitting, is provided on the portions excluding the side edges 17 c and 17 d of the heel portion 13 and the mouth portion 17. , Mesh knitting, pile knitting, or a combination thereof. Further, the thickness, material, and combination of the front yarn, the back yarn, the splicing yarn used for each knitting are arbitrary, and the materials used for knitting ordinary socks can be appropriately selected and used. As the main yarn, cotton acrylic blended yarn, wool yarn, silk yarn, silk acrylic blended yarn and the like can be used.

DESCRIPTION OF SYMBOLS 10 Foot cover 11 Foot cover main body 13 Eaves part 17 Wear mouth part 17a Front end part 17b Rear end part 17c, 17d Both-side edge part 20 Side elastic part 21 Straight part 22 Inclined part 30 Convex line (slip prevention means)
33 Upper part 34 Lower part 35 Concave part W2 Vertical dimension W3 of concave line X Vertical dimension X of concave part Width direction Y Front-rear direction Z Vertical direction

Claims (4)

In a foot cover including a foot cover body having a front-rear direction, a width direction, and a vertical direction, and having a heel part and a wear mouth part,
The wear mouth portion has front and rear end portions, and both side edge portions extending in the front and rear direction between the front and rear end portions,
Only the side edge portions of the mouth portion can be elastically expanded and contracted, and side elastic portions that are extendable in the front-rear direction are arranged on the side edge portions ,
Non-slip means formed of a high friction material having a higher coefficient of friction than the main yarn, at least part of which is knitted together with the main yarn forming the foot cover body, is disposed on the inner surface of the collar portion. And
The side elastic portion has a straight portion extending in the front-rear direction, and an inclined portion extending obliquely downward at the rear end of the straight portion in the vicinity of the boundary between the both side edge portions and the flange portion,
On the inner surface of the flange portion, there are a plurality of recesses positioned between the convex lines and extending in the width direction, and the vertical dimension of the convex line is larger than the vertical dimension of the concave part. The foot cover is characterized in that the concave portion does not contact the skin of the wearer . The foot cover according to claim 1, wherein the straight portion of the side elastic portion has a bag shape. Said slip means, spaced from each other in the vertical direction, a said convex line of plural rows extending in the width direction, the convex line, constructed from the main thread forming the foot cover body The foot cover according to claim 1 or 2 , comprising an upper portion and a lower portion integrally formed with the upper portion by the high friction material. The high friction material, the foot cover according to any one of claims 1 to 3, which is a polyurethane yarn is not covering.

Images