JP2018050792A - Upper component, shoe, sole component, and production method of upper component - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce 'production process, production cost' or the like by organizing an upper component integrally with a fabric having a contact with a user's foot without a step in a cross direction and in a foot waist direction.SOLUTION: There is provided an upper component 1 of a shoe 20 to be put on by a user U. The upper component 1 is organized integrally with a fabric 2, and the fabric 2 covers a foot-waist circumference W from one side part FS1 of a foot F of a user U to the other side part FS2 via a bottom part FB, on the whole position in a cross direction L of the foot F of the user U, and the fabric 2 has a contact with the foot F of the user U without a step in the cross direction L and in the foot waist direction C.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an upper member of a shoe worn by a user, a shoe, a sole member, and a method for manufacturing the upper member.

Conventionally, footwear articles having a flat knitted upper structure or other upper structure are known (see Patent Document 1).
The footwear article includes a knitting element having an upper formed from at least one mechanically manipulated yarn, the knitting element being at least partially coextensive with the first layer and the first layer. A region having a second layer with a first layer formed in one piece with the second layer, the second layer being connected to the first layer on both sides of the second layer The upper part and the sole structure fixed to the upper part are included.

Special table 2010-508994

However, as shown in FIGS. 5 to 8E of Patent Document 1, the footwear article described in Patent Document 1 has a configuration in which a central portion, an outer fabric element and an inner fabric element connected to both sides thereof are integrated. The lower edge of the outer fabric element is stitched to the outer edge of the central portion, and the lower edge of the inner fabric element is stitched to the inner edge of the central portion. Such sewing (sewing) is essential. Therefore, the manufacturing process and manufacturing cost are increased.
Furthermore, the footwear article of Patent Document 1 always has a portion where the fabric overlaps due to the above-described sewing, and this overlap portion tends to cause a sense of discomfort to the user.

  In view of these points, the present invention reduces the "manufacturing process / manufacturing cost" by integrally knitting the upper member with a knitted fabric in contact with the user's foot without any step in the front-rear direction and the torso direction. It is another object of the present invention to provide an upper member, a shoe, a sole member, and a method for manufacturing the upper member that are less likely to cause a “user discomfort”.

  The upper member 1 according to the present invention is an upper member of a shoe worn by a user, and the upper member is integrally knitted with a knitted fabric, and this knitted fabric is all positions in the front-rear direction of the user's foot. And covering the circumference of the torso including at least the side of the user's foot from one side to the other side through the bottom, and the knitted fabric is in the front-rear direction and the direction with respect to the user's foot. The first feature is that the contact is made without a step in the direction around the foot torso.

  The second feature of the upper member 1 according to the present invention is that, in addition to the first feature, the knitted fabric has at least one of the knitting structure, the number of stitches, the size of the stitches, and the yarn used. One is that it has a different knitted part different from the other parts.

  According to a third feature of the upper member 1 according to the present invention, in addition to the second feature, the different knitting portion includes a toe portion covering a toe side of the user's foot in the knitted fabric, and the knitted fabric. Any one of a heel part covering the heel side of the user's foot in the above, a mouth opening upward in the knitted fabric, and a sole part covering the back side of the user's foot in the knitted fabric. The present invention is characterized in that it has a dissimilar knitted portion in which the total fineness of the yarn used is smaller than that in other portions and / or the number of stitches in a predetermined length is smaller than that in other portions.

  A fourth feature of the upper member 1 according to the present invention is that, in addition to the second or third feature, the different knitted portion has a different elongation portion having a different elongation from other portions. is there.

  The fifth feature of the upper member 1 according to the present invention is that, in addition to the fourth feature, the different elongation portion has advanced forward by a predetermined length in the front-rear direction from the MP joint in the user's foot. It has a toe / MP differential elongation part that covers a predetermined longitudinal width from the position to the toe, and this toe / MP differential elongation part includes a thread made of polyurethane resin in the thread used. is there.

  A sixth feature of the upper member 1 according to the present invention is that, in addition to the fourth or fifth feature, the different elongation portion includes a heat-fusible portion and a non-heat-fusible portion on a yarn to be used. This heat-fusible yarn is characterized in that the content of the heat-fusible part is 20% by mass or more and 60% by mass or less.

  According to a seventh feature of the upper member 1 according to the present invention, in addition to the sixth feature, the heat-fusible yarn has the heat-fusible property with respect to the core yarn which is the non-heat-fusible portion. It is in the point that it is a covering structure in which a sheath yarn as a part is wound.

  The eighth feature of the upper member 1 according to the present invention is that, in addition to any of the fourth to seventh features, the different elongation portion is provided from the vicinity of the Lisfranc joint of the user's foot to the vicinity of the Chopard joint. It has a Lisfranc-Chopard joint differential elongation part covering a predetermined longitudinal width, and this Lisfranc-Chopard joint differential elongation part is in a point where the elongation is lower than other parts.

  The ninth feature of the upper member 1 according to the present invention is that, in addition to the eighth feature, the different elongation portion is an MP that covers a predetermined front-rear width from the MP joint of the user's foot toward the heel. The MP joint differential elongation part has a higher elongation than the Lisfranc-Chopard joint differential extension part or substantially the same elongation as the Lisfranc-Chopard joint differential extension part, The elongation is lower than the portion other than the Lisfranc-Chopard joint differential elongation portion.

  In the tenth feature of the upper member 1 according to the present invention, in addition to the ninth feature, the different elongation portion covers from the toe of the user's foot to a position closer to the toe than the MP joint. The toe differential elongation portion has a higher elongation than the Lisfranc / Chopard joint differential elongation portion and the MP joint differential elongation portion or the Lisfranc / Chopard joint differential elongation portion and the MP. The degree of elongation is substantially the same as at least one of the joint different elongation parts, and the degree of elongation is lower than the parts other than the Lisfranc / Chopard joint different elongation parts and the MP joint different elongation parts.

  In an eleventh feature of the upper member 1 according to the present invention, in addition to any of the first to tenth features described above, the heel rear surface of the knitted fabric is inclined forward, and the heel front surface and the vertical direction are formed. The inclination angle is in the range of 65 ° to 85 °.

Due to these features, the upper member 1 is integrally knitted with the knitted fabric 2, and at this knitted fabric 2, one side portion of the user's U foot F at all positions in the front-rear direction L of the user's U foot F. Covering the torso circumference W including from FS1 through the bottom FB to the other side FS2, and touching the knitted fabric 2 to the user's U foot F without any difference in the front-rear direction L and the torso circumference direction C. Thus, unlike Patent Document 1, it is not necessary to sew the lower edge of the outer fabric element to the outer edge of the central portion, or to sew the lower edge of the inner fabric element to the inner edge of the central portion. Can be reduced.
At the same time, since sewing is not essential, it means that there is no level difference caused by overlapping fabrics, and it is difficult for the user's U foot F to feel uncomfortable due to the level difference.
That is, it is possible to achieve both “reduction of manufacturing process / manufacturing cost” and “suppression of user discomfort”.

  In addition, when the user U wears the shoes 20 by providing the knitted fabric 2 with the knitted structure, the number of stitches, the size of the stitches, and the different knitted portions 3 different from other portions in the yarn used, etc. Furthermore, the upper member 1 can easily follow the skin of the foot F of the user U, or the knitting start portion (knitting start portion) of the knitted fabric 2 can be used as a base, and the knitted portion thereafter can be stably knitted. it can.

  Further, the toe portion 2t, the heel portion 2h, the footwear portion 2r, or the sole portion 2s of the knitted fabric 2 has a smaller total fineness of yarn used than other portions and / or a predetermined length from the other portions. For example, when the knitted fabric 2 starts to be knitted from the toe side, the toe part 2t that is first integrally knitted can be used as a base, and the part other than the toe part 2t that is knitted after that Can be organized stably.

  Further, by providing the knitted fabric 2 with the different elongation portions 4 having different elongation D from other portions, when the user U wears the shoes 20, the upper member 1 is applied to the skin of the foot F of the user U. Is easy to follow.

In addition, by providing a tiptoe / MP differential elongation portion 4d in the different elongation portion 4 and including a polyurethane resin thread in the toe / MP differential elongation portion 4d, a conventional shoe can be used by a user. For example, as will be described later, the upper member is bent while the U is running (when the user U is running while wearing the shoes 20) and corresponds to the portion where the “wrinkle” is generated. When the upper member 1 is attached to the sole member 30, the knitted fabric 2 is stretched by making the length 1L in the front-rear direction 1 shorter than the length 30L in the front-rear direction of the sole member 30.
When the user U runs while wearing the shoes 20 with the knitted fabric 2 stretched in this way, the stretched knitted fabric 2 (toe / MP different stretches) even if the toe / MP differential elongation portion 4d bends. Since the elongation part 4d) is merely returned to the original state, it is difficult for the “washes” to occur.
By this “suppression of wrinkles”, it is possible to reduce uncomfortable feeling during driving and uncomfortable feeling felt by the user U wearing the shoes 20.

Then, the different elongation portion 4 includes the heat-fusible yarn 5 having the heat-fusible portion 5a and the non-heat-fusible portion 5b, and the content of the heat-fusible portion 5a in the heat-fusible yarn 5 By setting G to 20% by mass or more and 60% by mass or less, it is possible to achieve both the shape retention effect and the comfort of the upper member 1 (or simultaneously achieve lateral blurring, shape retention and texture).
When the content G of the heat-fusible part 5a exceeds 60% by mass, the shape retaining effect is large (or the lateral blurring and shape retaining properties are high), but the texture becomes hard and comfortable to wear. Inhibits.
On the other hand, when the content G of the heat-fusible portion 5a is less than 20% by mass, sufficient shape retention effect (or sufficient lateral blurring and shape retention properties) cannot be obtained.

  Further, the heat-fusible yarn 5 has a covering structure in which a sheath yarn 5A that is a heat-fusible portion 5a is wound around a core yarn 5B that is a non-heat-fusible portion 5b. Since the portions 5a are not continuous and remain scattered on the fiber (on the surface of the core yarn 5B), the scattered heat-bondable portions 5a exhibit the shape retaining effect of the upper member 1 and at the same time The collapse / breakage of the fused portion that occurs when U is running with the shoes 20 is suppressed, and hardly changes after the dimension of the upper member 1 is extended by a predetermined distance.

  Further, the Lisfranc-Chopard joint differential elongation part 4a is provided in the differential elongation part 4, and the elongation F (Da) of the Lisfranc-Chopard joint differential elongation part 4a is made lower than that of the other parts, thereby making the foot F In this case, since the interval between the Lisfranc joint and the Chopard joint is less than the other portions, there is no problem even if the restraining force by the different elongation portion 4 is increased, and the upper member 1 is applied to the skin of the foot F of the user U. Can be made to follow more easily.

  Then, the MP joint different elongation part 4b is provided in the different elongation part 4, and the elongation D (Db) of the MP joint different elongation part 4b is higher or substantially the same as the Lisfranc-Chopard joint different elongation part 4a. In addition, by making the height lower than the portion other than the Lisfranc / Chopard joint differential extension portion 4a, the MP joint is not restrained more than necessary while suppressing the movement behind the MP joint and preventing lateral shaking of the shoe 20.

  Then, the toe differential elongation portion 4c is provided in the differential elongation portion 4, and the elongation D (Dc) of the toe differential elongation portion 4c is determined as the Lisfranc-Chopard joint differential elongation portion 4a and the MP joint differential elongation portion 4b. A higher or substantially the same as at least one of the Lisfranc / Chopard joint differential extension part 4a and the MP joint differential extension part 4b, and a part other than the Lisfranc / Chopard joint differential extension part 4a and the MP joint differential extension part 4b By making it lower, it can be said that the shape retaining effect of the upper member 1 can be exhibited without excessively constraining the toes of the foot F, which is one of the delicate parts in human sense.

  Then, by setting the heel front inclination angle α of the heel rear surface 2h ′ to 65 ° or more and 85 ° or less, the foot F of the user U who wears the shoe 20 becomes difficult to remove from the shoe 20 and at the same time the user U's heel Tightening against H does not have to be excessively strong (coexistence of “suppression of shoe removal” and “adequate heel tightening” can be achieved).

  The sole member 30 according to the present invention is a sole member of a shoe worn by a user, and has a heel counter erected from the peripheral edge on the heel side of the sole member, and the heel counter is located above the heel counter. The first feature is that a cutout portion is formed by cutting out from the first portion.

  Due to this feature, the notch 33 is formed by notching the heel counter 32 from above, so that the user U can easily take off the shoe 20 or the last after the upper member 1 is heat-molded (foot pattern described later) It becomes easy to remove the upper member 1 from K, and it is also possible to secure a counter function for holding (holding) the heel H of the user U (both “easy to take off” and “ensure the counter function”).

  The shoe 20 according to the present invention includes an upper member having the above first to eleventh features and a sole member to which the upper member is attached, and the length of the upper member in the front-rear direction is greater than the length of the sole member in the front-rear direction. The short feature is the first feature.

  A second feature of the shoe 20 according to the present invention is that an upper member having the first to eleventh features and a sole member having the first feature to which the upper member is attached are provided.

With these characteristics, when the upper member 1 is attached to the sole member 30 by making the longitudinal length 1L of the upper member 1 shorter than the longitudinal length 30L of the sole member 30, The user's U's foot F can be gently restrained, and when the user U wears the shoes 20, the upper member 1 can be made to follow the skin of the user's U's foot F further.
In the present invention, “the length 1 L in the front-rear direction of the upper member 1” means that the upper member 1 is attached to the sole member 30 (when the upper member 1 is present alone (the upper member 1 is once set as the sole member). This includes the length 1L in the front-rear direction of the upper member 1), including the case where it is intentionally removed from the sole member 30 after being attached to 30).
Similarly, “the length 30L in the front-rear direction of the sole member 30” in the present invention means that before the upper member 1 is attached to the sole member 30 (when the upper member 1 is present alone (the upper member 1 is This includes the front-rear direction length 30L of the sole member 30) including the case where the sole member 30 is intentionally detached from the sole member 30 after being attached to the member 30).
In addition, you may provide the upper member which has the said 1st-11th characteristic, and the sole member which has the said 1st characteristic.

  The method of manufacturing the upper member 1 according to the present invention is a method of manufacturing an upper member of a shoe worn by a user, and the upper member is the user's foot at all positions in the front-rear direction of the user's foot. Knitting a knitted fabric covering at least the foot torso including at least from one side of the foot to the other side via the bottom, the integrated knitting includes a toe portion covering the toe side of the user's foot; Starting from any one of a heel part covering the heel side of the user's foot, a mouth opening upward, and a sole part covering the back side of the user's foot, this started part, The first feature is that the number of stitches in a predetermined length is smaller than that of other portions and the knitting is performed integrally.

  With this feature, the upper member 1 is moved from one side FS1 of the user U's foot F to the other side FS2 via the bottom FB at all positions in the front / rear direction L of the user's U's foot F. Integral knitting is started from the toe portion 2t, the heel portion 2h, the mouth opening 2r, or the sole portion 2s of the knitted fabric 2 that covers the torso circumference W including the number of stitches of the portion where the integral knitting is started. By making it smaller than the portion, the toe portion 2t and the like that are first integrally knitted can be used as a base, and the portions other than the toe portion 2t and the like that are knitted after that can be stably knitted.

  According to the manufacturing method of the upper member, shoes, sole member, and upper member according to the present invention, the upper member is integrally knitted with a knitted fabric that is in contact with the user's foot without any step in the front-rear direction and the torso direction. Thus, it is possible to realize an upper member, a shoe, and a method for manufacturing the upper member that reduce the “manufacturing process / manufacturing cost” and make it less likely to cause “user discomfort”.

It is a drawing substitute photograph which shows the upper member (knitted fabric) which concerns on this invention. It is a top view which shows an upper member (knitted fabric). It is a side view which shows an upper member (knitted fabric). It is a front view which shows an upper member (knitted fabric). It is a drawing substitute photograph which shows the modification of an upper member (knitted fabric). It is a general | schematic perspective view which shows the covering structure of the heat sealing | fusion yarn used for an upper member (knitted fabric). It is a side view which shows the shoes which attached the upper member to the sole member. It is a rear view which shows the shoes which attached the upper member to the sole member. It is a figure which shows the sample (Example 2-1-1 to 2-1-5, 2-2-1 to 2-2-13) compared in Test 2-1, Comprising: (a) is a summary which shows a sample It is a figure and (b) is a drawing substitute photograph which shows the sample of a sample. It is a graph which shows the load with respect to the elongation of the sample (Example 2-1-1 to 2-1-5) compared in Test 2-1. It is a drawing substitute photograph which shows the sample of the sample (Example 2-1-2) which confirmed durability in Test 2-2. The sample before and after fir processing in Example 2-2 (Example 2-1-2) is shown, (a) is a drawing-substituting enlarged photograph showing the sample before fir processing, and (b) is the sample after fir processing. It is a drawing substitute enlarged photograph shown. It is a graph which shows the load with respect to the elongation of the sample (Example 2-1-2) compared before and after fir processing in Test 2-2.

<Overall configuration of upper member 1>
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 5 show an upper member 1 according to the present invention, and the upper member 1 is a part of a shoe 20 worn by a user U.

The upper member 1 is knitted integrally with a knitted fabric 2 described later, and is attached to a sole member 30 described later to constitute a shoe 20.
Since the upper member 1 in the shoe 20 is a portion that covers the foot F of the user U, first, the foot F of the user U who wears the shoe 20 will be described in detail below.

<Foot F of User U>
As shown in FIGS. 2 and 3, the foot F of the user U has a phalange, a metatarsal bone, and a tarsal bone in order from the toe T toward the heel H.
The phalanges on the foot F of the user U are in order from the toe T toward the heel H in the index finger (second heel), middle finger (third heel), ring finger (fourth heel), and little finger (fifth heel). Although it is composed of the distal phalanx, the middle phalanx, and the proximal phalanx, only the thumb (first heel) has no middle phalanx and is composed of the distal phalanx and the proximal phalanx.

For the index finger, middle finger, ring finger, and little finger, the joint of the foot F in the order of the distal interphalangeal joint (Distal InterPhalangeal joint ( DIP joint))) and a proximal interphalangeal joint (Proximal InterPhalangeal joint (PIP joint)) between the middle phalanx and the proximal phalanx.
As described above, since the thumb is composed of the distal phalanx and the proximal phalanx, it has only an interphalangeal joint (InterPhalangeal joint (IP joint)) between them.

The foot F of the user U has an MP joint (MetaTarsoPharangeal joint) located between the phalange and the metatarsal bone.
The MP joint in the foot F can be described in detail as follows. The joint between the proximal phalanx (first proximal phalanx) of the thumb and the metatarsal (first metatarsal bone) corresponding to the thumb, and the base of the index finger. A joint between the phalanx (second proximal phalanx) and the metatarsal bone (second metatarsal bone) corresponding to the index finger, and the middle phalanx (third proximal phalanx) of the middle finger and the midfoot corresponding to the middle finger A joint between the bone (third metatarsal bone), a joint between the proximal phalanx (fourth proximal phalanx) of the ring finger and the metatarsal (fourth metatarsal bone) corresponding to the ring finger, and the little finger It can be said that this joint is a joint between the proximal phalanx (fifth proximal phalanx) and the metatarsal bone corresponding to the little finger (fifth metatarsal bone). In order to distinguish from (MetaCarpoPhalangeal joint (MCP joint)), it is also called MTP joint.

Further, it can be said that the MP joint has the widest left-right width in the foot F in plan view (the length in the left-right direction is long).
Here, it can be said that the left-right direction of the foot F is a direction substantially orthogonal to a front-rear direction L of the foot F, which will be described later, in a horizontal plane that the front-rear direction L substantially follows.
On the other hand, it can be said that the up-down direction of the foot F is a direction substantially orthogonal to a front-rear direction L of the foot F, which will be described later, in a vertical plane that the front-rear direction L substantially extends.

The tarsal bones in the foot F of the user U are arranged in order from the toe T toward the heel H toward the inner heel bone, the intermediate wedge bone, the outer wedge bone, the cubic bone, the scaphoid bone, the talar bone, and the heel bone. Consists of bones.
The joints in the tarsal bone of the foot F are the metatarsals (five metatarsals corresponding to the thumb, index finger, middle finger, ring finger, and little finger) and the tarsal bone (inner side) in order from the toes T to the heel H. Lisfranc joint between wedge-shaped bone, intermediate wedge-shaped bone, lateral wedge-shaped bone, cubic bone) and Chopard joint in the tarsal bone (between cuboid and scaphoid and talus and radius) ing.

The above-mentioned Lisfranc joint includes a joint between the metatarsal bone corresponding to the thumb (first metatarsal bone) and the inner wedge bone, and a metatarsal bone corresponding to the index finger (second metatarsal bone) and the middle side. Joint between wedge bone, metatarsal bone corresponding to middle finger (third metatarsal bone) and joint between outer wedge bone, metatarsal bone corresponding to ring finger (fourth metatarsal bone) and little finger It can be said that the joint between the metatarsal bone (fifth metatarsal bone) corresponding to 1 and the cubic bone is combined, and is also called a tarsal metatarsal joint.
The Chopard joint is a joint obtained by combining a talus joint between the scaphoid and the talus and a cuboid joint between the cuboid and the rib, and is also called a lateral tarsal joint.
In addition to the above-mentioned Lisfranc joint and Chopard joint, joints in the tarsal bone of the foot F of the user U include a wedge cubic joint between the outer wedge bone and the cubic bone, and a wedge bone (inner wedge bone / medium). Side wedge and lateral wedge bone) and a wedge joint between the scaphoid and a subtalar joint between the talus and ribs.

<Longitudinal direction L of user F's foot F>
As shown in FIGS. 2 and 3, the “front-rear direction L” of the foot F of the user U in the present invention refers to the toe T (thumb, index finger, middle finger, ring finger, little finger, etc.) of the foot F of the user U. It means the direction connecting the tip of the finger that protrudes most forward) and 踵 H (the tip that protrudes most backward in 踵 H).
Therefore, it can be said that the foot F of the user U has an MP joint, a Lisfranc joint, and a Chopard joint in order from the front along the front-rear direction L (in order from the toe T to the heel H).
In the present invention, for such a foot F of the user U, one side is FS1, the bottom of the foot F is FB, and the other side is FS2.

<The torso circumference W of the user U's foot F, the torso circumference direction C>
As shown in FIGS. 2 and 3, the “foot circumference W” of the foot F of the user U in the present invention is the other side of the foot F of the user U from the one side FS <b> 1 through the bottom FB. It means a part including at least part FS2.
Specifically, the foot circumference W depends on each position in the front-rear direction L of the foot F of the user U described above. For example, the foot circumference W in the vicinity of the toe T of the foot F (from the toe T to the MP joint) Is from one side FS1 (one side of the thumb) of the part where the thumb, index finger, middle finger, ring finger, little finger are gathered, via the bottom FB of the thumb, index finger, middle finger, ring finger, little finger, The thumb, forefinger, middle finger, ring finger, upper FT of the little finger, including the thumb, forefinger, middle finger, ring finger, upper finger FT, also via the other side FS2 (the other side of the little finger) of the thumb, index finger, middle finger, ring finger, little finger -It can be said that it is a part including until it returns to the side part FS1 on one side of the part where the index finger, middle finger, ring finger, and little finger are gathered.

In addition, the torso circumference W in the upper part of the foot F (from the MP joint to the Chopard joint) is the side on the other side of the upper part from the side part FS1 on one side of the upper part via the bottom part FB of the upper part. It can be said that it is a part including the upper part FT of the upper part via the part FS2 and including one part of the upper part until it returns to the side part FS1 on one side.
On the other hand, the torso circumference W from the lower part of the ankle of the foot F to the heel H (from the Chopard joint to the heel H) is from the side FS1 on one side of the lower part of the ankle to the bottom FB of the lower part of the ankle, It can be said that the portion includes up to the other side portion FS2 of the lower portion of the ankle, and naturally does not include the upper portion of the lower portion of the ankle (that is, it does not return after one round).

Accordingly, the “foot trunk circumference direction C” of the foot F of the user U in the present invention is such that each surface from the one side FS1 to the other side FS2 via the bottom FB of the user F ’s foot F is at least It can also be said that it is a circumferential direction that substantially follows (a circumferential direction that surrounds the aforementioned front-rear direction L as a substantial center).
More specifically, the torso direction C in the vicinity of the toe T of the foot F means that the thumb, forefinger, middle finger, middle finger, ring finger, little finger from the side FS1 on one side of the thumb, forefinger, middle finger, ring finger, little finger together. Thumb / index finger / middle finger / ring finger via bottom FB and side FS2 on the other side of the thumb / index finger / middle finger / ring finger / little finger together and upper FT of thumb / index finger / middle finger / ring finger / little finger -It can be said that it is the circumferential direction which returns along substantially each surface of one side part FS1 of the part which put together the little finger (it goes around 1 round).

Further, the torso direction C in the instep portion of the foot F means that the side portion FS1 on one side of the instep portion, the bottom portion FB of the instep portion, the side portion FS2 on the other side of the instep portion, and the upper portion FT of the instep portion. It can be said that it is a circumferential direction that passes back (around one turn) substantially along each surface of the side portion FS1 on one side of the upper portion.
On the other hand, the torso direction C from the lower part of the ankle of the foot F to the heel H is defined as the direction of the other side of the lower part of the ankle from the side part FS1 on one side of the lower part of the ankle to the bottom part FB of the lower part of the ankle. It is a circumferential direction substantially along each surface up to the side portion FS2, and naturally the upper part of the lower part of the ankle does not substantially follow (that is, it is not a circumferential direction of one turn).

<The front-rear direction L ′ of the upper member 1, the front-rear direction length 1 L, etc.>
As shown in FIGS. 2, 3 and 7, the front-rear direction L ′ of the upper member 1 can be said to be a direction substantially along the front-rear direction L of the foot F when the upper member 1 covers the foot F. In the upper member 1, the toe part 1 t (the tip of the part that protrudes most forward in the toe part 1 t (the toe part 2 t of the knitted fabric 2)) and the heel part 1 h (the heel part 1 h (the heel part 2 h of the knitted fabric 2)) It can also be said that it is the direction connecting the tip of the part protruding to the side.
Further, the longitudinal length (front / rear length) 1L of the upper member 1 may be a length substantially along the longitudinal direction L of the foot F in the upper member 1 when the upper member 1 covers the foot F. It can also be said that it is the length from the toe portion 1t of the upper member 1 (the tip of the portion protruding most forward in the toe portion 1t) to the heel portion 1h (the tip of the portion protruding most rearward in the heel portion 1h).
Here, “the length 1L in the front-rear direction of the upper member 1” in the present invention means that before the upper member 1 is attached to the sole member 30 (when the upper member 1 exists alone (the upper member 1 is once The upper member 1 is attached to the member 30 and then is removed from the sole member 30)))). 1L in the front-rear direction, or 1L in the front-rear direction of the upper member 1 before the heat forming.
As will be described later, when the integrally knitted fabric 2 that is the upper member 1 is constituted by a circular knitting, the front-rear direction L ′ of the upper member 1 (knitted fabric 2) is a circular knitted course. The length 1L in the front-rear direction of the upper member 1 (knitted fabric 2) is the course direction length of the circular knitting.
In addition, it can be said that the left-right direction in the upper member 1 is a direction substantially orthogonal to the above-described front-rear direction L ′ of the upper member 1 in a horizontal plane that is substantially along the front-rear direction L ′.

<Cut direction C ′ of the upper member 1, leg width W ′>
As shown in FIGS. 2, 3 and 7, the foot torso direction C ′ of the upper member 1 is a direction substantially along the foot torso direction C of the foot F when the upper member 1 covers the foot F. It can be said that the leg circumference W ′ of the member 1 has a length substantially along the leg circumference direction C of the foot F when the upper member 1 covers the leg F.
As will be described later, when the integrally knitted fabric 2 that is the upper member 1 is configured by a circular knitting, the foot torso direction C ′ of the upper member 1 (knitted fabric 2) is the wale direction. Yes, the torso circumference W ′ of the upper member 1 (knitted fabric 2) is the length in the wale direction.

<Knitted fabric 2>
As shown in FIGS. 1 to 5, the knitted fabric 2 is integrally knitted as the upper member 1, and the entire foot F of the user U described above is covered with one knitted fabric.
That is, the knitted fabric 2 is at least from one side portion FS1 to the other side portion FS2 of the user U's foot F via the bottom portion FB at all positions in the front-rear direction L of the user U's foot F. It can be said that it covers the torso circumference W including it.

Specifically, the knitted fabric 2 is located on one side of the portion where the thumb, forefinger, middle finger, ring finger, and little finger are gathered for the vicinity of the toe T of the foot F of the user U (from the toe T to the MP joint). From the part FS1, the bottom part FB of the thumb, index finger, middle finger, ring finger, little finger, side part FS2 on the other side of the thumb, index finger, middle finger, ring finger, little finger, The upper part FT is covered with a part (a bottomed and substantially cylindrical front cylinder part 2a) that goes around the FS1 on one side of the part including the thumb, index finger, middle finger, ring finger, and little finger. It can be said that.
For the upper part of the foot F, the knitted fabric 2 includes a side part FS1 on one side of the upper part, a bottom part FB of the upper part, a side part FS2 on the other side of the upper part, and an upper part FT of the upper part. Via, it can be said that each surface of the side portion FS1 on one side of the upper portion is covered with a portion that goes around once (substantially cylindrical middle cylinder portion 2b).

On the other hand, for the knitted fabric 2 from the lower part of the ankle of the foot F to the heel H, the other side of the lower part of the ankle passes from the side FS1 on one side of the lower part of the ankle to the bottom FB of the lower part of the ankle. The side FS2 is covered, and the upper part FT of the lower part of the ankle is naturally not covered (that is, the upper part of the foot F from the lower part of the ankle to the heel H is opened without going around one turn (the mouth 2r is formed upward). And is covered with a bottomed rear opening 2c).
In this way, the upper member 1 is integrally knitted with the knitted fabric 2, and the knitted fabric 2 from the one side portion FS1 of the user's U foot F at all positions in the front / rear direction L of the user's U foot F. By covering the torso circumference W including the other side part FS2 via the bottom FB, in other words, the knitted fabric 2 is in the front-rear direction L and the torso circumference direction C with respect to the foot F of the user U. It will come in contact without steps.

Since there is no step in the front-rear direction L ′ and the torso direction C in the knitted fabric 2, the lower edge of the outer fabric element is stitched to the outer edge of the center portion as in Patent Document 1, or the lower edge of the inner fabric element is It is not necessary to sew to the inner edge of the central portion, and the manufacturing process and manufacturing cost can be reduced.
At the same time, since sewing is not essential, it means that there is no level difference caused by overlapping fabrics, and the user U's foot F is less likely to feel uncomfortable due to the level difference.
That is, it is possible to achieve both “reduction of manufacturing process / manufacturing cost” and “suppression of user discomfort”.

As described so far, the knitted fabric 2 that covers the user's U's foot F may be any knitting structure as long as it is integrally knitted. For example, a knitted fabric (flat knitting) or a smooth knitting (both sides) Knitting, double rubber knitting), rubber knitting, pearl knitting, tuck knitting, float knitting, lace knitting, double knitting knitting, single knitting knitting, perelin knitting, eyelet knitting, multi-stroke double knitting knitting, double jersey knitting, swing It may be a round knitting (weft knitting) such as a knitting, a needle knitting, a pile knitting, a fleece knitting, a splicing knitting, a knitting splicing knitting, a raben knitting, a twisting knitting or an argyle knitting. Thus, it may be partially different, and one knitted fabric 2 may be knitted with two or more types of knitting structures (for example, two types).
Further, the knitted fabric 2 may be formed by overlapping a plurality of the above-described knitting structures to constitute a part or the whole (such as a double knitted fabric or a triple knitted fabric). Therefore, it is possible to reduce the weight.
Thus, since one knitted fabric 2 is integrally knitted, various materials are not laminated and an adhesive is not used, so it is always easy to take in outside air and easily release moisture inside the shoe 20. Can suppress stuffiness. Furthermore, since the knitted fabric 2 is integrally knitted with a plurality of types of yarns, it can be said that it is a knitting material, and since it easily wicks sweat in the shoes 20 and has good drainage even when wet, Since drying is excellent in quickness, it is easy to keep the shoes 20 comfortable.

The knitted fabric 2 has the above-described front cylinder part 2a, middle cylinder part 2b, rear opening part 2c, and mouth 2r, and other parts located on the rearmost part of the toe part 2t and the rear opening part 2c described later (後 述Part) 2h.
The knitted fabric 2 may have a blade portion 10 and a tongue portion 11.
The weight of the knitted fabric 2 is not particularly limited, and may be, for example, 15 g or more and 35 g or less, preferably 18 g or more and 32 g or less, more preferably 20 g or more and 30 g or less (25 g or the like).

<Starting part of integral knitting (toe part 2t, heel part 2h, etc.)>
In addition, the start part of the integral knitting in the knitted fabric 2 may be a toe part 2t that covers the toe T side of the foot F of the user U (FIGS. 1 to 5).
That is, the knitted fabric 2 may be integrally knitted from the toe portion 2t to the heel portion 2h, and other portions may be knitted (connected) radially from the toe portion 2t knitted first.

The toe portion 2t is a substantially centered position (in the left-right direction) on the front side of the toe T of the foot F in the bottomed substantially cylindrical portion of the knitted fabric 2 that covers from the toe T of the foot F of the user U to the MP joint. And a portion covering a substantially central position in the vertical direction).
In other words, the toe portion 2t is a portion that protrudes most forward in the knitted fabric 2.

In the case where the toe portion 2t is a start portion of integral knitting, the toe portion 2t has a smaller total fineness of yarn used than other portions (portions other than the toe portion 2t) and / or other portions ( When the knitted fabric 2 is formed by a circular knitting from a portion other than the toe portion 2t, the predetermined length in the front-rear direction L ′ (course direction) of the knitted fabric 2 or the knitted fabric The number of stitches in the predetermined length in the leg torso direction C ′ (the wale direction) 2 may be small.
In this way, as long as the number of stitches is small, the specific number of stitches of the toe portion 2t may be any. For example, in the front-rear direction L ′ (course direction) of the knitted fabric 2, there are five or more courses. In the foot trunk direction C ′ (the wale direction) of the knitted fabric 2, it may be 3 wales or more.

Therefore, it can be said that the toe portion 2t is also a different knitted portion 3 (particularly, a loosely knitted portion 3a) described later.
Thus, by setting the start part of the integral knitting in the knitted fabric 2 to the toe part 2t having a smaller total fineness of the yarn used than the other parts or having a small number of stitches, The toe portion 2t integrally knitted to the base can be used as a base, and the portions other than the toe portion 2t knitted thereafter can be stably knitted.

Starting from such a toe portion 2t, through the bottom of the knitted fabric 2, to the boundary between the bottom and the rear surface of the heel portion 2h, the portion with a width of 1 wal (one stitch) is It may be connected along the direction L ′.
Further, the heel portion 2h of the knitted fabric 2 has a portion whose left-right width is at least 5 wales (5 stitches) extending substantially along the vertical direction and covers the rear surface of the heel H of the foot F of the user U. Also good.
Further, of the heel portion 2 h, the upper edge of the heel portion (upper edge of a heel counter 32 described later) of the sole member 30 formed when the knitted fabric 2 (upper member 1) is attached to the sole member 30 and the upper member 1. For the vicinity of the boundary (the portion of the upper member 1 that hits the upper edge of the heel portion of the sole member 30 (the upper edge of the heel counter 32) when the knitted fabric 2 (upper member 1) is attached to the sole member 30, As will be described in detail, at least a PU yarn described later may be included.
On the contrary, the knitted fabric 2 may be integrally knitted from the heel portion 2h to the toe portion 2t, and the heel portion 2h to be knitted first has a smaller total fineness of yarn used than the other portions, or By reducing the number of stitches in a predetermined length from the other parts, the heel part 2h that is integrally knitted first can be used as a base, and the parts other than the heel part 2h that is knitted after that can be stably knitted.
In addition to this, the starting part of the knitted fabric 2 of the knitted fabric 2 is a cuff 2r that opens upward, and the cuff 2r extends to the sole 2s that covers the bottom (back) FB side of the user's U foot F ( The knitting may be performed integrally (so as to turn the foot F along the circumferential direction of the mouth 2r in plan view).
On the other hand, the starting part of the knitted fabric 2 integrally knitted is the above-described sole part 2s (especially the center part in the left-right direction of the sole part 2), and the above-mentioned wearing mouth is formed from this sole part 2s. It may be knitted integrally over 2r (so as to turn the foot F along the circumferential direction of the foot F in the plan view of the user U).

<Back side 2h 'of knitted fabric 2>
In the knitted fabric 2, the rear surface (back surface) 2h ′ of the heel portion 2h covering the heel H side of the user U is not particularly limited in its configuration. For example, even if the back surface 2h ′ is inclined forward good.
In other words, the heel rear surface 2h ′ can be said to have the upper end of the heel rear surface 2h ′ positioned forward of the lower end of the heel rear surface 2h ′ in a side view. It can be said that any (arbitrary) part of the heel rear surface 2h ′ is located in front of the part below the part.

The heel forward tilt angle α formed by the above-described heel rear surface 2h ′ and the vertical direction may be any number of times as long as the heel rear surface 2h ′ itself is tilted forward. For example, it is 65 ° to 85 °. It may be 70 ° to 85 °, more preferably 70 ° to 80 ° (75 ° or the like).
Here, as described above, the “front tilt angle α” in the present invention is an angle formed by a straight line connecting the upper end of the rear surface 2h ′ and the lower end of the rear surface 2h ′ and the vertical direction in a side view. Or an angle formed by (in between) a straight line connecting any (arbitrary) part of the rear face 2h ′ and a part below the part in the side view and the vertical direction. In addition, the “frontal tilt angle α” may be an angle formed by a tangent line at any (arbitrary) portion (point) of the rear surface 2h ′ and the vertical direction in a side view.
In addition, the “front tilt angle α” may be an angle formed by the middle portion or the lower portion 2h ″ of the rear surface 2h ′, and the middle portion or the lower portion 2h ″ of the rear surface in the side view. Is an angle formed by a straight line connecting the upper end of the rear surface and the lower half of the rear surface or the lower end of the lower portion 2h ″ and the vertical direction, or in the side view, either the middle portion of the rear surface or the lower portion 2h ″ (optional) It is an angle formed by a straight line connecting a part and a part below the part and the vertical direction, or in the middle part or the lower part 2h ″ of the rear face in the side view (in an arbitrary part) It may be an angle formed by a tangent and a vertical direction.
Furthermore, the “front tilt angle α” in the present invention is any of the above-described front tilt angles α after the upper member 1 is attached to the sole member 30, or the upper member 1 is attached to the sole member 30. Even before, any one of the above-mentioned heel forward inclination angles α after the heat forming described later with respect to the upper member 1 or any one of the above-mentioned heel forward inclination angles before the heat forming is performed. It may be α.
By setting the heel front inclination angle α of the heel rear surface 2h ′ to be 65 ° or more and 85 ° or less, the foot F of the user U who wears the shoe 20 becomes difficult to remove from the shoe 20 and at the same time the user U's It is not necessary to tighten the heel H excessively (both “restraining shoe removal” and “optimizing heel tightening” can be achieved).

<Different part 3>
As shown in FIGS. 1 to 5, the different knitted portion 3 is a portion in which at least one of the knitting structure, the number of stitches, the size of the stitches, and the yarn used is different from the other portions.
The different knitted portion 3 has a total fineness of yarns used from other portions such as the toe portion 2t, the heel portion 2h, the wear mouth 2r, and the sole portion 2s in the knitted fabric 2 which is the start portion of the above-described integral knitting. It includes a loosely knitted portion 3a that is smaller and / or has a smaller number of stitches in a predetermined length than other portions, and also includes a different elongation portion 4 described below.

<Different elongation part 4>
As shown in FIGS. 1-5, the different elongation part 4 is a part in which the elongation D differs from other parts in the knitted fabric 2. FIG.
In other words, the knitted fabric 2 is integrally knitted, but the elongation D may not be uniform as a whole, and a portion of the knitted fabric 2 may have a lower elongation D than other portions, or other portions. When the elongation D is higher, a portion having a lower or higher elongation D is defined as a different elongation portion 4.

In addition, it can be said that the part other than the different elongation part 4 in the knitted fabric 2 is a part that becomes the standard of the elongation D, and this is the elongation base part 4 ′.
This elongation base portion 4 ′ can be said to be the “other portion” described above. More specifically, the elongation base portion 4 ′ is the widest portion of the knitted fabric 2 or other than the specific different elongation portions 4a to 4g described later. Say the part.

That is, the knitted fabric 2 is composed of a different elongation portion 4 and an elongation base portion 4 ′.
Moreover, the different elongation part 4 should just have at least 1 among the different elongation parts 4a-4g mentioned later, and also the different elongation part 4 itself does not exist in the knitted fabric 2. Good.

The different elongation portion 4 may have any configuration as long as the elongation D is different from other portions. For example, the knitting structure in the different elongation portion 4 as in the different knitting portion 3 described above. And at least one of the number of stitches, the size of the stitches, and the yarn used is different from the other parts (the difference is at least one of the number of stitches and stitches, the size of the stitches, and the yarn used) The different elongation part 4 may be comprised.
When the difference between the different elongation part 4 and the other parts is the “knitting structure”, for example, if the knitted fabric 2 is knitted by the above-mentioned tentacle knitting or smooth knitting, the different elongation part 4 is smoothly knitted. As for other parts, it is good also as the Tengu edition and vice versa.

In addition, the tengu knitting and the smooth knitting do not have a large difference on the surface and are difficult to identify with the naked eye. Therefore, even though the knitted fabric 2 is integrally knitted, functions (elongation suppression, etc.) are provided for each different elongation portion 4. It is possible to have it.
Further, in the case of different elongation portions 4 for suppressing elongation (different elongation portions 4 that are difficult to stretch or different elongation portions 4 for preventing elongation), a smooth knitting is included or the stitch (loop) is made as small as possible. You may do it.

When the difference between the different elongation portion 4 and other portions is “number of stitches, size of stitches”, for example, the integrally knitted fabric 2 that is the upper member 1 is formed of a circular knitting. In this case, a predetermined length in the foot torso direction C ′ (the wale direction) between the different stretch portions 4 and the other partial knitted fabrics 2 at substantially the same position in the front-rear direction L ′ (course direction) of the knitted fabric 2. In this case, the number of stitches used for the different elongation portions 4 may be larger or smaller than the other portions, and the size of the stitches used for the different elongation portions 4 may be smaller or larger than the other portions.
In addition to this, for example, when the integrally knitted fabric 2 that is the upper member 1 is formed of a circular knitting, the knitted fabric 2 is substantially at the same position in the foot torso direction C ′ (the wale direction). The number of stitches used for the different elongation part 4 is larger or smaller than that of the other part at a predetermined length in the front-rear direction L ′ (course direction) in a certain different elongation part 4 and the other partial knitted fabric 2. The size of the stitches used for the different elongation portions 4 may be smaller or larger than other portions.

As the number of stitches used in a predetermined length increases, the size of each stitch tends to increase, and as the number of stitches decreases, the size of each stitch tends to decrease. It can be said.
Conversely, if the size of each stitch used in a predetermined length increases, the number of stitches decreases, and if the size of each stitch decreases, the number of stitches increases. It can be said that there is a tendency.
The number of stitches can be said to be “degrees”. According to JIS-L-1096: 2010, “degrees” means the number of wales per 1/2 (1/2) inch and The number of courses is obtained and the sum of the two is meant. The value at this time is not particularly limited, but may be, for example, 33 or more and 37 or less (for example, 35).

When the difference between the different elongation portions 4 and other portions is “used yarn”, more specifically, the total fineness of the yarn used, the number of fibers (filaments) contained in one yarn, and single fibers Fineness, number of twists, material, color, etc. are the differences.
In particular, as a difference between the different elongation portions 4 and other portions, when different yarn materials are used, the different elongation portions 4 have a heat-fusible yarn 5 having a heat-fusible portion 5a described later. May be included.

The yarn material used for the different elongation part 4 includes the heat-bonded yarn 5, a polyurethane resin yarn (PU yarn), a wooly yarn (crimped yarn), a regular yarn (ordinary spun yarn (spun yarn)). Yarn (single fiber yarn)), filament yarn (long fiber yarn)), and the like.
The amount of the yarn of each material may be changed depending on the position and function of the different elongation portion 4.

For example, in the case of using a thread that is difficult to stretch (a thread having a low elongation D) based on the position and function of the different elongation portion 4, at least a part of the different elongation portion 4 will be described later. Heat fusion yarn 5, regular yarn (for example, regular yarn made of polyester resin (polytrimethylene terephthalate resin yarn (PTT yarn), etc.), wooly yarn (eg, wooly yarn made of polyamide (nylon) resin ( Woolley nylon thread) etc.) may also be included.
Here, the wooly nylon yarn will be described in detail. Since the wooly nylon yarn is crimped in a normal state, the stitch becomes smaller than the finished knitting, and the volume of the knitted fabric 2 is increased and the texture is improved.
When the different elongation part 4 (knitted fabric 2) using such wooly nylon yarn is pulled, the crimped wooly nylon thread stretches and the stitches open, so that the different elongation part (knitted fabric 2) has a certain degree. However, after the nylon resin itself is stretched to some extent, the elongation of the different elongation portions 4 is suppressed.
Therefore, by using a Woolley nylon thread for the different elongation part 4, the different elongation part 4 grows moderately when the user U runs, and does not extend any more (holds the user F's foot F). It can be said that this property can be given.

The number of types of yarn used in one knitted fabric 2 may be any number, such as one type or two or more types, and two or more types of yarn are used in one different elongation portion 4. It may be (for example, 6 types).
Regarding the different elongation part 4, only one of the four differences of the knitting structure, the number of stitches, the size of the stitches, and the yarns used so far may be different from the other parts. Of the four differences, only two or three may be different at the same time, or all four may be different.
Further, at the boundary between the different elongation portions 4 and the elongation base portion 4 ′ or between the different elongation portions 4, the knitting structure, the number of stitches, the size of the stitches, the yarn used, etc. are gradually increased. It may be changed (continuously changed).

Further, the different elongation portion 4 may be provided at any position on the knitted fabric 2, for example, at a position corresponding to each joint or toe T of the user F's foot F described above. It is also good (such as a Lisfranc-Chopard joint differential extension part 4a, an MP joint differential extension part 4b, a toe differential extension part 4c, a toe / MP differential extension part 4d, etc. described later).
In addition, the knitted fabric 2 (upper member 1) of the pair of left and right shoes 20 is an inner portion in the left and right direction (on the side where the left and right shoes 20 are close to each other (facing)). Part) and the outer side in the left-right direction (the part on the side separated (not facing) by the left and right shoes 20), the elongation D may be different, for example, the elongation of the inner part of the knitted fabric 2 D may be higher than the outer portion or vice versa. Note that the above-described Woolley yarn may be used on the outer side of the knitted fabric 2 in the left-right direction (the little finger side of the foot F).

In this manner, the different elongation portions 4 having different elongation D between the inner portion and the outer portion can be provided also in the later-described Lisfranc-Chopard joint different elongation portion 4a (for example, the Lisfranc-Chopard joint different elongation). In the degree part 4a, the elongation D of the inner part is higher than that of the outer part, etc.). This is also the case of the MP joint different elongation part 4b, the toe different elongation part 4c, the toe / MP different elongation part 4d, etc. It is the same.
As described above, the user U wears the shoes 20 by providing the knitted fabric 2 with the different elongation portions 4 that are different from the other portions in the knitting structure, the number of stitches, the size of the stitches, the yarn used, and the like. When worn, the upper member 1 can easily follow the skin of the foot F of the user U.

<Elongation D>
The differential elongation portion 4 described so far is distinguished by the elongation D, but here, the elongation D itself will be described.
In the present invention, the “elongation D” means that the yarn used for the knitted fabric 2 is pulled in a predetermined direction (the front-rear direction L ′ (course direction) or the torso direction C ′ (wale direction)) of the knitted fabric 2. This means the ease of elongation (difficulty of elongation).

For example, if the heat-fusible yarn 5 and the like which will be described in detail later are included in the yarn to be used, the heat of the knitted fabric 2 (the different elongation portion 4) becomes harder by heat treatment (such as thermoforming). Of course, if it becomes harder, the knitted fabric 2 (the different elongation portion 4) itself becomes difficult to stretch, so it can be said that the elongation D represents hardness.
Further, the elongation D may be any as long as it can express easiness of elongation. For example, it can be expressed by a stress-strain curve (SS curve) defined in JIS-K-6900: 1994. Also good.

In addition, in the yarn actually used for the knitted fabric 2, the stress required when stretching (the shape of the SS curve when stretched) and the stress that naturally occurs when contracting (the shape of the SS curve when shrinking) Different (becomes a hysteresis loop (history curve)).
Therefore, if it exists in this SS curve, in the thread | yarn used for the knitted fabric 2, it can grasp | ascertain the stress which arises at the time of shrinkage | contraction as well as the stress required at the time of expansion | extension, and is required when the user U puts on the shoes 20 and expands the knitted fabric 2 It is clear that the knitted fabric 2 contracts and restrains the user's U's foot F after wearing the shoes 20 as well as the stress, and is suitable for expressing the elongation D of the upper member 1. I can say that.

Here, this stress-strain curve (SS curve) is expressed in “JIS-K-6900: 1994, a chart in which the corresponding values of stress and strain are contrasted with each other. (Vertical), the strain values are plotted on the horizontal axis (horizontal) ".
The stress-strain curve indicating the elongation D may be, for example, a stress (unit: N (Newton)) on the vertical axis and an extension length (unit: m) on the horizontal axis.

The above-mentioned “hysteresis loop (history curve)” is defined in JIS-K-6900: 1994 as “a closed curve diagram of stress (or a function thereof) against strain generated during periodic deformation of a material”. ing.
When the elongation D is represented by such a stress-strain curve (SS curve) serving as a hysteresis loop, for example, regarding the height (magnitude) relationship, the slope average value during contraction (the entire SS curve in the section during contraction). Compare the height with the slope (for example, the unit is N / m), and other slope average values during expansion (average of the slope of the entire SS curve in the stretched section) The height may be compared with a value obtained by adding the average slope value at the time and the average slope value at the time of expansion and dividing by two.

In addition, as an expression of the elongation D, the Young's modulus (tensile elastic modulus) similarly defined in JIS-K-6900: 1994 may be used.
Here, this Young's modulus is expressed as “the quotient of stress and strain (secant modulus) E = σ / ε or tangent to the stress-strain curve (tangential modulus) E = dσ /” in JIS-K-6900: 1994. dε ”.

“Σ” in the above formula is defined as “stress” in JIS-K-6900: 1994, and “internal force or internal force acting on a unit area of a certain plane passing through a certain point inside the object. In the above equation, “ε” is defined as “strain” in “JIS-K-6900: 1994” and “the strength of the object”. Means a change in length dimension or shape based on an external force compared to the dimension or shape.
The unit of this Young's modulus is N (Newton) / m ² (square meter) or the like.

Such Young's modulus is, for example, the slope of the SS curve at the time of contraction or extension, or the slope of the tangent at an arbitrary point on the SS curve that becomes a hysteresis loop, in the above-described stress-strain curve (SS curve). The value differs depending on which section or point.
Therefore, when the elongation D is represented by Young's modulus, for example, the height relationship is also compared, for example, the Young's modulus representing the average slope value when the hysteresis loop contracts, or the average slope value when stretched. Young's moduli, values obtained by adding the respective Young's moduli representing the mean value of inclination at contraction and the mean value of inclination at the time of expansion, and dividing by 2, Young's moduli representing the tangential slope at a predetermined point on the hysteresis loop, etc. Will compare the height.

<Lisfranc-Chopard joint extension part 4a>
As shown in FIGS. 1 to 5, the Lisfranc-Chopard joint differential elongation portion 4 a is one of the differential elongation portions 4 in the knitted fabric 2, and is from the vicinity of the Lisfranc joint in the foot F of the user U. It is a substantially belt-like thing covering a portion of a predetermined front-rear width 4aW up to the vicinity of the Chopard joint.
The front-rear width 4aW is not particularly limited as long as it covers a portion having a predetermined length in the front-rear direction from the vicinity of the Lisfranc joint to the vicinity of the Chopard joint in the foot F of the user U. It may be 30 mm or less (2% or more and 12% or less if the length is 20 L in the front-rear direction of the shoe 20), preferably 4 mm or more and 27 mm or less (2% or more and 11% or less). Length), more preferably 4 mm or more and 24 mm or less (length of 2% or more and 10% or less).

The Lisfranc-Chopard joint differential elongation portion 4a is formed from the side portion FS1 on one side of the upper portion with respect to the upper portion of the foot F when the knitted fabric 2 has a tongue portion 11 described later. Covers only the surface of the side FS2 on the other side of the upper part via the bottom FB of the part, and does not cover the surface of the upper part FT of the upper part (that is, does not make one round in the foot torso direction C ′). It will be.
On the other hand, when the knitted fabric 2 does not have the tongue portion 11 described later, the Lisfranc-Chopard joint differential elongation portion 4a is from the side portion FS1 on one side of the upper portion with respect to the upper portion of the foot F, Covers each surface of the side portion FS1 on the one side of the upper portion through the bottom portion FB of the upper portion, the side portion FS2 on the other side of the upper portion, and the upper portion FT of the upper portion (that is, the torso direction C 'Turn one round'

The Lisfranc-Chopard joint differential elongation part 4a has a lower elongation D (Da) than the other parts of the knitted fabric 2 (that is, the Lisfranc-Chopard joint differential elongation part 4a has the highest elongation Da in the knitted fabric 2). Low).
In this way, by providing the Lisfranc-Chopard joint differential elongation portion 4a having the lowest elongation Da, the distance between the Lisfranc joint and the Chopard joint in the foot F is less than the other portions. There is no problem even if the restraining force by the portion 4 is increased, and the upper member 1 can be made to follow the skin of the foot F of the user U more easily.
Further, in order to realize such an elongation D (Da), the Lisfranc-Chopard joint differential elongation portion 4a may include a thermal fusion yarn 5 described later.

<MP joint different elongation part 4b>
As shown in FIGS. 1 to 5, the MP joint different elongation part 4 b is also one of the different elongation parts 4 in the knitted fabric 2, and the above-described MP joint (medium footpad) in the foot F of the user U is used. It is a substantially belt-like thing covering a part of a predetermined front-rear width 4 bW from the internode joint) toward the heel H.
The front / rear width 4bW is not particularly limited as long as it covers a portion of a predetermined length in the front / rear direction from the MP joint to the heel H of the user's U foot F. 36 mm or less (4 mm or more and 36 mm or less backward from the MP joint toward the heel H, or 2% or more and 14% or less for the length 20 L in the front-rear direction of the shoe 20) Preferably 4 mm or more and 33 mm or less (4 mm or more and 33 mm or less in the rearward direction, 2% or more and 13% or less in length), more preferably 4 mm or more and 30 mm or less (4 mm or more and 30 mm or less in the rearward direction, 2% or more in the same direction). It may be 12% or less in length).

Here, since the MP joint in the foot F has the widest left-right width in plan view (the length in the left-right direction is long), the MP joint dissimilarity portion 4b also exists in the knitted fabric 2 (upper member 1). It can also be said that the width in the left-right direction is the widest in the plan view (length in the left-right direction).
It should be noted that the MP joint different elongation portion 4b is formed from the side portion FS1 on one side of the upper portion with respect to the upper portion of the foot F regardless of the presence or absence of the tongue portion 11 described later. Covers each surface of the side portion FS1 on the one side of the upper portion through the FB, the side portion FS2 on the other side of the upper portion, and the upper portion FT of the upper portion (that is, one turn in the foot trunk direction C ′) Will turn).
Further, if the part covered by the MP joint differential extension portion 4b is described in detail, the MP joint differential extension portion 4b may cover the MP joint itself on the foot F of the user U or not. good. In addition, when the MP joint differential elongation portion 4b covers the MP joint itself in the foot F of the user U, the elongation D of the portion that actually covers the MP joint is continuously (gradient-like). ) The structure may change or may be substantially uniform.

The MP joint differential extension portion 4b has a higher elongation D (Db) than the Lisfranc-Chopard joint differential extension portion 4a, or the elongation D is substantially the same as the Lisfranc-Chopard joint differential extension portion 4a. The elongation D (Db) is lower than the portion other than the joint differential elongation portion 4a (that is, the elongation Db of the MP joint differential elongation portion 4b is next to the Lisfranc-Chopard joint differential elongation portion 4a in the knitted fabric 2). (The second lowest) or the lowest in the knitted fabric 2 as in the case of the Lisfranc-Chopard joint elongation difference 4a).
Thus, the MP joint is required while suppressing the lateral movement of the shoe 20 by suppressing the movement behind the MP joint by providing the MP joint different elongation portion 4b having the second (or the lowest) elongation Db. There are no restrictions.
Further, in order to realize such an elongation D (Da), the Lisfranc-Chopard joint differential elongation portion 4a may include a thermal fusion yarn 5 described later.

In addition, since the MP joint different elongation part 4b has predetermined | prescribed front-back width 4bW, it turns out that it is a part (strip | belt-shaped part) extended in strip | belt shape in the left-right direction in the knitted fabric 2, but this strip | belt-shaped part is one ( The number of the joints may be different from each other and may form the MP joint different elongation portion 4b.
Specifically, the MP joint differential elongation portion 4b is configured such that a plurality of belt-shaped portions having the elongation Db and a plurality of belt-shaped portions having a higher elongation D than the elongation Db are alternately arranged in the front-rear direction. (Things that are striped) may point to the whole, and in this case, the front and rear widths of the respective belt-like portions may be different or may be all the same.
In addition, each of the belt-like portions in the MP joint different elongation portion 4b may be any color, and the order and position of the appearance of these colors may be periodic or gradation (colors may be continuous). It may be changed).

<Toe differential elongation part 4c>
As shown in FIGS. 1 to 5, the toe differential elongation portion 4 c is also one of the differential elongation portions 4 in the knitted fabric 2, and the toe T of the user U's foot F from the MP joint to the toe T It covers up to the close position.
Similar to the Lisfranc-Chopard joint differential elongation portion 4a and the MP joint differential elongation portion 4b as described above, the toe differential elongation portion 4c may have a substantially strip shape having a predetermined front-rear width (front-rear width 4cW). good.

In addition to this, the toe differential elongation portion 4c covers, for example, only the upper part (upper surface) FT from the toe T of the foot F of the user U to the position closer to the toe T than the MP joint. The shape may be a substantially trapezoidal shape or a substantially triangular shape.
At this time, the height (length in the front-rear direction L ′) of the substantially trapezoidal or substantially triangular toe differential elongation portion 4 c may be substantially the same as the front-rear width 4 cW described above.

In addition, the toe differential elongation portion 4c may cover at least one of the left and right outer portions, the left and right inner portions, and the bottom portion, instead of the upper surface in the vicinity of the toe T of the foot F.
Specifically, the toe differential elongation portion 4c is formed on one side FS1 (thumb, index finger, middle finger, ring finger, little finger) from the toe T of the foot F of the user U to a position closer to the toe T than the MP joint. From the side portion FS1 (one side portion of the thumb) of the portion where the two sides are gathered through the bottom portion FB (the bottom portion FB of the thumb, forefinger, middle finger, middle finger, ring finger, little finger), the other side portion FS2. Cover only the other side FS2 (side of the other side of the little finger) (the thumb, forefinger, middle finger, ring finger, and little finger together) and upper (top) FT (thumb, forefinger, middle finger, ring finger, The upper part FT of the little finger does not need to be covered (that is, it does not have to go around once in the torso direction C ′).
In addition to this, the toe differential elongation portion 4c includes a side FS1 on one side and a side FS2 on the other side from the toe T of the foot F of the user U to a position closer to the toe T than the MP joint, At least one of the upper (upper surface) FTs may be covered.
Note that the above-described Woolley thread may also be used on the outer side in the left-right direction (the little finger side of the foot F (side part on the other side of the little finger) FS2) in the toe differential elongation portion 4c.

Thus, even when the toe differential elongation portion 4c does not cover the upper portion (upper surface) FT in the vicinity of the toe T, the length in the front-rear direction L ′ of the toe differential elongation portion 4c is the above-described front-rear width. It may be substantially the same as 4cW.
Here, the front-rear width 4cW (height or length in the front-rear direction L ′) covers the portion from the toe T of the user's U foot F to the position closer to the toe T than the MP joint, The value is not particularly limited, but may be, for example, 4 mm or more and 36 mm or less (2% or more and 14% or less if the length is 20 L in the front-rear direction of the shoe 20), and preferably 4 mm. It may be 33 mm or less (length of 2% or more and 13% or less), more preferably 4 mm or more and 30 mm or less (length of 2% or more and 12% or less).

The toe differential elongation portion 4c has a lower elongation D (Dc) than the Lisfranc-Chopard joint differential elongation portion 4a and the MP joint differential elongation portion 4b, or the Lisfranc-Chopard joint differential elongation portion 4a and the MP joint differential elongation. The elongation D is substantially the same as at least one of the portions 4b, and the elongation D (Dc) is lower than the portions other than the Lisfranc / Chopard joint differential elongation portion 4a and the MP joint differential elongation portion 4b (that is, The elongation Dc of the toe differential elongation portion 4c is the second lowest (third lowest) in the knitted fabric 2 after the Lisfranc Chopard joint differential elongation portion 4a and the MP joint differential elongation portion 4b, or Lisfranc Chopard. The lowest or the second lowest in the knitted fabric 2 in the same manner as at least one of the joint different elongation part 4a and the MP joint different elongation part 4b).
As described above, by providing the toe differential elongation portion 4c having the third (most or second) lowest elongation Dc, the toe of the foot F, which is one of the most delicate parts in human sense, is provided. The shape retaining effect of the upper member 1 can be exhibited without being excessively constrained.
Further, in order to realize such an elongation D (Da), the Lisfranc-Chopard joint differential elongation portion 4a may include a thermal fusion yarn 5 described later.

<Toe / MP differential elongation 4d>
As shown in FIGS. 1 to 5, the toe / MP differential elongation portion 4d is also one of the differential elongation portions 4 in the knitted fabric 2, and the MP joint differential elongation portion 4b and the toe differential elongation portion 4c. Between the MP joints of the foot F of the user U (for example, 0 mm or more and 10 mm or less (with respect to the length 20L of the shoe 20 in the front-rear direction). If there is a length of 0% or more and 4% or less)), a portion having a predetermined front-rear width of 4 dW from the position advanced forward to the toe T is covered.
The front-rear width 4 dW is a predetermined length in the front-rear direction from the MP joint of the foot F of the user U (if it covers a portion of a predetermined length in the front-rear direction from the position advanced forward to the toe T). The value is not particularly limited, for example, 4 mm or more and 36 mm or less (it can be said that it is 4 mm or more and 36 mm or less forward from the position where the MP joint has advanced a predetermined length in the front-rear direction toward the toe T. The length may be 2% or more and 14% or less), preferably 4 mm or more and 33 mm or less (length of 2% or more and 13% or less), Preferably, it may be 4 mm or more and 30 mm or less (length of 2% or more and 12% or less).

Such a toe / MP differential elongation portion 4d is also formed from the side portion FS1 on one side of the upper portion with respect to the upper portion of the foot F, regardless of the presence or absence of the tongue portion 11 described later. Covers the surface of the side portion FS1 on one side of the upper portion through the bottom portion FB, the side portion FS2 on the other side of the upper portion, and the upper portion FT of the upper portion (that is, in the torso direction C ′) One round).
Also, the toe / MP differential elongation portion 4d is also advanced forward by a predetermined length in the front-rear direction from the MP joint on the user's U foot F between the MP joint differential elongation portion 4b and the toe differential elongation portion 4c. It may cover at least one of the left and right outer side portions, the left and right inner side portions, and the bottom portion, instead of the top surface of the portion from the position to the tip of the toe T with a predetermined front and rear width of 4 dW.
The toe / MP differential elongation portion 4d is not particularly limited in its value as long as the elongation D is different from other portions, but a polyurethane resin yarn (PU yarn), which is a material that is easy to stretch, is used. Yes.
As a result, the elongation Dd of the toe / MP differential elongation part 4d includes the above-described Lisfranc-Chopard joint differential extension part 4a, the MP joint differential extension part 4b, the toe differential extension part 4c, and other parts. It can be said that it becomes higher than (the other part (elongation base part 4 ')).

In this way, by having the toe / MP differential elongation portion 4d using PU yarn, which is a material that is easy to stretch, if the shoe is a conventional shoe, it will be bent when the user U runs, and a “wrinkle” is generated. In spite of this portion, for example, as will be described later, the length 1L of the upper member 1 in the front-rear direction is made shorter than the length 30L in the front-rear direction of the sole member 30, thereby When attached to the knitted fabric, the knitted fabric 2 is stretched.
When the user U runs while wearing the shoes 20 with the knitted fabric 2 stretched in this way, the stretched knitted fabric 2 (toe / MP different stretches) even if the toe / MP differential elongation portion 4d bends. Since the elongation part 4d) is merely returned to the original state, it is difficult for the “washes” to occur.
By such “suppression of wrinkles”, it is possible to reduce uncomfortable feeling during driving and discomfort felt by the user U wearing the shoes 20.
The toe / MP differential elongation portion 4d may be recessed when the user U is not wearing it (when not in use).

<Other differential elongation part 4>
As shown in FIGS. 1 to 5, the different elongation portion 4 includes the above-described Lisfranc / Chopard joint different elongation portion 4 a, MP joint different elongation portion 4 b, toe different elongation portion 4 c, toe / MP different elongation. It may have a different elongation part other than the part 4d, for example, may have a different elongation part 4 (side different elongation part 4e) that covers the left and right sides of the foot F.
The side differential elongation portion 4e covers a portion having a predetermined length in the front-rear direction substantially along the front-rear direction L ′ passing through the vicinity of the left and right ankles from the upper part of the instep portion of the foot F.
If the positions of the front end and the rear end of the side differential elongation portion 4e are described in detail, first, the front end of the side differential elongation portion 4e is located at the uppermost position in a shoe hole (through hole) 10a described below (first eyelet) Or a portion adjacent to the rear of the first eyelet. On the other hand, the rear end of the side differential elongation portion 4e may be in the vicinity of the heel of the foot F, or may be located behind the heel.

The length in the front-rear direction of the side differential elongation portion 4e is not particularly limited. For example, the length is 4 mm or more and 70 mm or less (2% or more and 27% or less if the length of the shoe 20 is 20 L in the front-rear direction). Length), preferably 4 mm to 60 mm (length of 2% to 23%), more preferably 4 mm to 50 mm (length of 2% to 20%). .
Further, the side differential elongation portion 4e covers from the upper part of the upper part to the vicinity of the left and right heels, covers from the upper part of the upper part to the vicinity of the left and right heels, curves in the vicinity of the heel, and substantially extends in the vertical direction. It may cover the part along.

As the other different elongation portions 4, there may be a wear mouth different elongation portions 4 f which are portions of the knitted fabric 2 (upper member 1) forming the wear mouth 2 r.
There is no particular limitation on the yarn used for the different degree of elongation at the mouth 4f, but it may be, for example, a rubber yarn (PU yarn or the like).

Further, as the other different elongation portions 4, the mouth opening / heel different elongation portions covering between the mouth 2r of the knitted fabric 2 (upper member 1) and the heel portion H (heel counter 32 described later). 4g may be present.
There is no particular limitation on the thread used for the wearer / wrinkle differential elongation portion 4g, but it may be, for example, a rubber thread (PU thread or the like).

<Heat fusion yarn 5>
As shown in FIG. 6 and the like, the heat fusion yarn 5 is one type of yarn used for the above-described different elongation portion 4 (that is, the heat fusion yarn 5 is used for the different elongation portion 4. Included as a thread).
The heat-fusible yarn 5 has a heat-fusible portion 5a and a non-heat-fusible portion 5b.

Accordingly, the heat-fusible yarn 5 is subjected to heat treatment (such as thermoforming) on the knitted fabric 2 (upper member 1), so that the heat-fusible portion 5a is melted. Accordingly, the elongation D of the different elongation portion 4 can be set to a predetermined value.
Therefore, first, the heat-fusible portion 5a and the non-heat-fusible portion 5b will be described.

<Heat-fusion part 5a and non-heat-fusion part 5b>
As shown in FIG. 6 and the like, the heat-fusible portion 5a of the heat-fusible yarn 5 is a portion that melts by heat treatment and has a lower melting point than the non-heat-fusible portion 5b described later.
As for the material of the heat-fusible part 5a and the non-heat-fusible part 5b, the non-heat-fusible part 5b is melted by heat treatment first (in other words, the non-heat-fusible part 5a is more non-heat-fusible than the heat-fusible part 5a For example, the heat-fusible part 5a and the non-heat-fusible part 5b are formed of a polyethylene (PE) resin and a polypropylene (PP) resin. It may be.

As other materials, the heat-fusible portion 5a and the non-heat-fusible portion 5b are polyester resins (polyethylene terephthalate (PET) resin, polytrimethylene terephthalate (PTT) resin, polybutylene terephthalate (PBT) resin, etc.). ) And polyethylene (PE) resin, or a normal polyester resin (high melting point polyester resin) and low melting point polyester resin.
Such a heat-fusible portion 5a and a non-heat-fusible portion 5b are present in one heat-fusible yarn 5 at a predetermined ratio (content ratio G).

<Content G of heat-fusible part 5a>
The content G of the heat-fusible portion 5a in the heat-fusible yarn 5 is the mass of the heat-fusible portion 5a in one heat-fusible yarn 5 and the heat-fusible portion 5a in the heat-fusible yarn 5. And the value obtained by dividing the non-heat-fusible portion 5b by the total mass is multiplied by 100.
The content G will be described in detail in Examples 1-1 to 1-4 described later, but may be 20% by mass or more and 60% by mass or less (see Examples described later), preferably 30% by mass. It may be 50% by mass or less, more preferably 35% by mass or more and 45% by mass or less (39.7% by mass, 40% by mass, etc.).
In other words, in this case, the content G ′ of the non-heat-bondable portion 5b in the heat-bonding yarn 5 is greater than 0 mass% and less than 20 mass% and greater than 60 mass% and less than 100 mass%.

By having such content ratios G and G ′, it is possible to achieve both the shape retention effect and the comfort of the upper member 1 (or simultaneously achieve lateral blurring, shape retention and texture).
When the content G of the heat-fusible part 5a exceeds 60% by mass, the shape retaining effect is large (or the lateral blurring and shape retaining properties are high), but the texture becomes hard and comfortable to wear. Inhibits.
On the other hand, when the content G of the heat-fusible portion 5a is less than 20% by mass, sufficient shape retention effect (or sufficient lateral blurring and shape retention properties) cannot be obtained.

The heat-sealing yarn 5 including the contents G, G ′ described above and the above-described materials may have any configuration as long as it has a heat-fusible portion 5a and a non-heat-fusible portion 5b. For example, a core-sheath structure or a covering structure described later may be used.
For example, if the heat-sealable yarn 5 is a core-sheath structure, the non-heat-sealable part 5b having a higher melting point among the heat-sealable part 5a and the non-heat-sealable part 5b having different melting points is used as a core. The heat-fusible portion 5a having a lower melting point is used as a sheath, and it is formed by spinning in a state of a core and a sheath in one yarn (single fiber).
Next, the case where the heat fusion yarn 5 has a covering structure will be described below.

<Covering structure of heat-sealing yarn 5 (sheath yarn 5A, core yarn 5B)>
As shown in FIG. 6 and the like, the heat-sealing yarn 5 has a covering structure in which a sheath yarn 5A that is a heat-fusible portion 5a is wound around a core yarn 5B that is a non-heat-fusible portion 5b. May be.
By adopting such a covering structure, the heat-fusible portion 5a is not continuous but remains scattered on the fiber (on the surface of the core yarn 5B). At the same time that the shape retention effect of the upper member 1 is exhibited, the collapse / breakage of the fused portion that occurs when the user U is running with the shoes 20 is suppressed, and the size of the upper member 1 is extended by a predetermined distance. There is little change later.

In the heat-sealing yarn 5 having the covering structure, the content G of the heat-fusible portion 5a is preferably 20% by mass or more and 60% by mass or less.
By doing in this way, the shape retention effect of the upper member 1 can be exhibited by the scattered heat-fusible portions 5a, and the suppression of the collapse / breakage of the fused portion occurring during traveling can be realized in a well-balanced manner.

<Feather part 10>
As shown in FIGS. 1 to 5, the blade portion 10 includes a shoe hole 10 a through which the shoelace 31 of the shoe 20 passes, and is integrally knitted on the knitted fabric 2.
As long as the blade portion 10 includes the shoe hole 10a and is integrally knitted to the knitted fabric 2, there is no particular limitation on the configuration thereof. For example, before the forming (before heat forming or after heat forming, it is doubled) When the formed blade portion 10 is opened (when the forming is released)), the knitted fabric 2 as a whole including the blade portion 10 is the user at all positions in the front-rear direction L of the foot F of the user U. Covering the torso circumference C including at least the one side FS1 from the side FS1 of the U foot F to the other side FS2 via the bottom FB, the knitted fabric 2 is in the longitudinal direction L with respect to the foot F of the user U. And it is good also as a structure which contact | connects without the level | step difference of the leg trunk direction C.

In other words, the blade portion 10 indicates a portion (double knitted fabric) or the like that is overlapped by molding. In addition, the blade | wing part 10 after shaping | molding may be not only a double knitted fabric, but the triple knitted fabric piled up three times, and may be piled up four or more times.
In this way, when superposed, not only the blade portion 10 itself but also the shoe holes 10a described later are configured so that two (or three or more) overlap each other.

The knitting structure of the blade portion 10 is not particularly limited.
Moreover, in the blade | wing part 10, the part (ridge part or valley part) which carries out a mountain fold (or valley fold) at the time of shaping | molding may be knitted loosely rather than the surrounding part (a stitch may be enlarged). .
Thereby, it becomes easy to recognize the fold (ridge part etc.) in the blade | wing part 10, and it becomes easy to fold.

If the user U can pass the shoelace 31, the position of the blade portion 10 is not particularly limited. For example, the upper surface of the upper part of the foot F of the user U (from the MP joint to the Chopard joint). (Upper) A pair of left and right may be provided at the center position in the left-right direction of the FT so as to sandwich a tongue portion 11 described later.
As described above, the blade portion 10 having the shoe hole 10a is integrally formed on the knitted fabric 2, so that it is not necessary to sew the fabric of the blade, and the manufacturing process and manufacturing cost can be further reduced. Since there is no level difference caused by stitching with the fabric, a sense of incongruity is less likely to occur.

<Shoe hole (through hole) 10a>
As shown in FIGS. 1 to 5, the shoe hole 10 a is a through hole provided in the blade portion 10 and through which the shoelace 31 of the shoe 20 passes.
The shoe hole 10a may have any configuration as long as it can pass the shoelace 31. For example, before the blade portion 10 is formed, the shoe hole 10a has a hole in the foot torso direction C ′ (wel direction) of the knitted fabric 2. Two of them may be formed as a pair.

In this case, one shoe hole 10a is formed after the forming by performing the mountain folding on the blade portion 10 with a line connecting the midpoints of the two holes.
In addition, as mentioned above, when it shape | molds so that the blade | wing part 10 may be piled up 3 or more, similarly, 3 or more holes are formed in the foot trunk direction C '(wel direction), and 3 One shoe hole 10a may be formed by forming the blade portion 10 with a fold or valley fold along a line connecting the midpoints of two or more holes.

The number of shoe holes 10a provided in one blade portion 10 is not particularly limited, and may be three, six, four, five, seven or more, for example.
The diameter of each shoe hole 10a is also not particularly limited. For example, some of the stitches are skipped (for example, by skipping some stitches in the front-rear direction L ′ (course direction) and / or the foot trunk direction C ′ (wel direction). 3 mm or more and 5 mm or less (about 4 mm).
Here, to skip the stitches means to move the stitches (for example, two) that should originally be in the positions to be the shoe holes 10a to positions that overlap the adjacent stitches, or to the shoe holes. The stitch that should be originally located at the position 10a may mean forming a linear float (float) instead of a loop.

Furthermore, after molding, a member such as eyelet (eyelet) or other resin or metal may be fitted into the shoe hole 10a.
Thereby, even when a load is applied to the shoe hole 10a when the shoelace 31 passing through the shoe hole 10a is pulled, it is possible to suppress the collapse of the stitch (the shoe hole 10a itself).

In addition, when eyelets are fitted into each shoe hole 10a, they may be called first eyelet, second eyelet, third eyelet, etc. in order from the top to the bottom. The heat-sealing yarn 5 described above may be used for at least a part of the peripheral portion 10a.
Also, the lowermost first eyelet part (the peripheral part of the lowermost shoehole 10a) is easier to lift than the other parts (other eyelet parts) in order to easily lift when passing through the shoelace 31. You may do it.

<Tan part 11>
As shown in FIGS. 1 to 5, the tongue portion 11 has a tongue-like shape that covers the upper surface (upper part) FT of the foot F of the user U and is knitted integrally with the knitted fabric 2.
The tongue portion 11 is not particularly limited as long as it has a tongue-like shape that covers the upper surface (upper portion) FT of the foot F of the user U. For example, the number of stitches at a predetermined length from other portions There are few, and you may carry out integral knitting (roughly knitting so that it may have a clearance gap).

The tongue portion 11 is not particularly limited in the yarn used, but may be knitted integrally with the knitted fabric 2 using, for example, a wooly yarn (especially a wooly nylon yarn).
By using such a woolly yarn, the stretchability of the tongue portion 11 is improved, and the knitting finish becomes more rough.

Such a tongue portion 11 covers the upper surface (upper part) FT of the foot F of the user U. More specific positions are, for example, the upper portion of the foot U of the user U (from the MP joint to the Chopard joint). ) In the left-right direction center position of the upper surface (upper) FT, and the tongue portion 11 can be said to be a position covering from the vicinity of the rear of the MP joint to the lower part of the mouth 2r.
In addition, since the tongue portion 11 is different from the other portions in the yarn and / or knitting structure used, naturally, the elongation D of the tongue portion 11 is also different from the other portions.

That is, it can be said that the tongue portion 11 is also one of the different elongation portions 4.
By providing such a tan portion 11 with the knitted fabric 2 as an integral knitting, there is no need to sew the tan fabric, the manufacturing process / cost can be reduced, and there is a level difference caused by the sewing with the tan fabric. As a result, there is less discomfort.

<Heat forming / Last K>
The knitted fabric 2 described so far is molded (heat molding) by being heated (heat treatment).
In this thermoforming, the knitted fabric 2 is heat-treated in a state where it is put on (covered) “Last K” which is an average foot shape of a person.

Since the knitted fabric 2 has the predetermined elongation D (stretches and shrinks) for each part by applying the above-described knitted fabric 2 to the last K and performing thermoforming, the knitted fabric 2 is knitted. Molding is performed with the ground 2 in close contact with the last K surface.
That is, the knitted fabric 2 (upper member 1) having improved adhesion to the user F's foot F can be heat-molded, and when the user U wears it (in use), the user's U foot F And the knitted fabric 2 (upper member 1) are less misaligned.

The shape of the last K may have various characteristics, but the angle formed between the rear surface of the last K placed on the horizontal plane and the vertical line is, for example, 65 ° to 85 °, preferably 70 °. It may be not less than 85 °, more preferably not less than 70 ° and not more than 80 ° (75 ° or the like). As a result, the rear surface of the heel portion 2h of the knitted fabric 2 (upper member 1) that has been heat-formed is also predetermined It tilts forward at an angle (踵 forward tilt angle). This makes it difficult for the upper member 1 (shoe 20) worn by the user U to be removed from the foot F.
In thermoforming, the knitted fabric 2 is put on the last K described above, an archer (resin spacer member) is put, and a predetermined temperature condition (for example, 120 ° C., for 30 seconds to 10 minutes) Heat) and then cool.

In addition, by this thermoforming, the above-described blade portion 10 is overlapped to form a double knitted fabric or the like.
It can be said that the knitted fabric 2 becomes the upper member 1 through such heat forming.

<Overall configuration of shoe 20>
7 and 8 show a shoe 20 according to the present invention.
The shoe 20 is worn by the user U and covers the foot F of the user U.

The shoe 20 includes the above-described upper member 1 and a sole member 30 to which the upper member 1 is attached. In addition, the shoe 20 may include a shoelace 31, a heel counter 32, and the like.
The weight of the shoe 20 as a whole is not particularly limited, and may be, for example, 80 g or more and 170 g or less, preferably 100 g or more and 150 g or less, more preferably 110 g or more and 140 g or less (125 g or the like).

<Sole member 30>
As shown in FIGS. 7 and 8, the sole member 30 is a member that is attached (attached) from below the upper member 1 in the shoe 20.
The material of the sole member 30 is not particularly limited. For example, a synthetic resin such as synthetic rubber or polyurethane resin, or a foamed synthetic resin such as synthetic rubber or polyurethane resin, natural rubber, natural leather, etc. It may be.

The sole member 30 is not particularly limited in its hardness (elongation D described above), but may be configured to be harder than the upper member 1 (elongation D is lower than that of the upper member 1), for example (upper). This is because it is difficult to use the shoes 20 only with the member 1).
The shape of the sole member 30 is not particularly limited depending on the use application of the shoe 20. For example, the sole member 30 may have a predetermined counter function with respect to the heel H of the user U (details are described later. Counter 32).
The weight of the sole member 30 is not particularly limited, and may be, for example, 70 g or more and 130 g or less, preferably 80 g or more and 120 g or less, more preferably 90 g or more and 110 g or less (100 g or the like).

<Longitudinal length 30L of sole member 30>
The longitudinal length 30L of the sole member 30 is not particularly limited, but may be longer than the longitudinal length 1L of the upper member 1 described above, for example.
Thus, when the upper member 1 is attached to the sole member 30 by making the longitudinal length 30L of the sole member 30 longer than the longitudinal length 1L of the upper member 1, the entire upper member 1 is used. The user's U's foot F can be restrained gently, and when the user U puts on the shoes 20, it becomes easier to make the upper member 1 follow the skin of the user's U foot F.
Here, “the length 30L in the front-rear direction of the sole member 30” in the present invention means that before the upper member 1 is attached to the sole member 30 (when the upper member 1 is present alone (the upper member 1 is once attached to the sole member 30). This includes the front-rear direction length 30L of the sole member 30) including the case where the sole member 30 is intentionally detached from the sole member 30 after being attached to the member 30).

<Shoelace 31>
As shown in FIGS. 1 and 7, a shoelace (shoelace) 31 is a string-like member that passes through the shoe hole 10 a of the blade portion 10 described above in the upper member 1.
The shoelace 31 may have any color, material, thickness, length, and configuration as long as it can be passed through the shoehole 10a.

<Heel counter 32, notch 33>
As shown in FIGS. 7 and 8, the heel counter 32 is formed integrally with the above-described sole member 30 and has a counter function of holding (holding) the heel H of the user U.
The heel counter 32 is not particularly limited as long as the heel counter 32 holds the heel H of the user U. For example, the heel counter 32 is erected at a predetermined height from the rim on the heel side of the sole member 30 to Further, it may be configured to support from the rear or the left and right sides.

In the heel counter 32, the rear side of the heel H of the user U is cut out from a predetermined direction (for example, from above) into a predetermined shape and size such as a substantially U shape in a rear view (a cracked shape). The notch 33 may be formed.
Such a notch 33 makes it easier for the user U to take off the shoes 20 or to remove the upper member 1 from the last K after the upper member 1 is heat-molded, and holds the user's U's heel H ( It is also possible to secure a counter function that holds) ("easy to take off" and "ensure counter function" are compatible).
Further, only the knitted fabric 2 (the heel portion 2h) exists in the range cut out by the notched portion 33, and the rear surface of the heel portion 2h of the knitted fabric 2 by the above-described thermoforming is a predetermined angle (the heel forward tilt angle). ), The shoe 20 is difficult to remove from the user's U foot F. At the same time, when removing the shoe 20, the knitted fabric 2 (the heel portion 2h) exposed at the notch is removed. It can be said that it is possible to take off easily by widening the mouth 2r.
In addition, as described above, when the knitted fabric 2 (upper member 1) is attached to the sole member 30, the upper edge of the heel counter 32 and a predetermined portion of the knitted fabric 2 corresponding (substantially along) the upper edge are provided. In order to hit (abut), a PU yarn or the like may be used for a predetermined portion (corresponding portion) of the knitted fabric 2.

<Examples and tests>
From here, Examples 1-1 to 1-4 of the upper member 1 according to the present invention are compared in Test 1, and Examples 2-1 to 2-1-5 and 2-2 of the upper member 1 are compared. -1 to 2-2-13 are compared in Test 2-1, particularly, Example 2-1-2 is checked for durability in Test 2-2.
Finally, Example 3 of the upper member 1 is also referred to.

<Test 1>
In Test 1, Examples 1-1 to 1-4 were prepared by using the heat-sealing yarns 5 having different contents G of the heat-fusible portion 5a at predetermined locations of the upper member 1 (knitted fabric 2). The lateral blurring, shape retention and texture of each example were evaluated.
In addition, when the user U puts on and uses the shoe 20 which attached the upper member 1 of each Example to the sole member 30 with "horizontal blurring property", it is with respect to the said shoe 20 (especially sole member 30). Then, the evaluation (sensory evaluation) of whether or not the foot F of the user U is shifted laterally (or feels shifted laterally), and the “shape retention” means that the upper member 1 is heated and molded. It is an evaluation of whether or not the heat-formed shape can be maintained, and “texture” is used when the user U wears the shoe 20 in which the upper member 1 of each embodiment is attached to the sole member 30. The user U's foot F feels or feels touching the upper member 1 (knitted fabric 2), and the user U touches the upper member 1 (knitted fabric 2) with the foot F, such as the texture and comfort of the foot F. ) Evaluation of material feeling (sensory evaluation) when touched.
First, each of Examples 1-1 to 1-4 will be described in detail.

<Example 1-1>
In the upper member 1 (knitted fabric 2) of Example 1-1, the content G of the heat-fusible portion 5a in the heat-fusible yarn 5 used at a predetermined location is 0.0% by mass.
The yarn used in the predetermined portion of Example 1-1 includes only a polytrimethylene terephthalate (PTT) resin yarn (PTT yarn) as the non-heat-bondable portion 5b (that is, heat fusion). The wearing part 5a is not included).
Evaluation about the content rate G in this Example 1-1, the fineness of the PTT yarn which is the non-heat-fusible part 5b, the fineness of the heat-fusible part 5a, the lateral blurring property, the shape retention and the texture will be described later. It is shown in Table 1.

<Example 1-2>
In the upper member 1 (knitted fabric 2) of Example 1-2, the content G of the heat-fusible portion 5a in the heat-fusible yarn 5 used at the same predetermined location as in Example 1-1 is the nylon described later. If the specific gravity of the yarn and the PTT yarn is substantially the same, (110 dtex) ÷ (110 dtex + 167 detex) ≈39.7% by mass (about 40.0% by mass) (see Table 1 described later).
Unlike Example 1-1, the yarn used in the same predetermined portion of Example 1-2 includes a nylon (polyamide) resin yarn (nylon yarn) as the heat-fusible portion 5a, which is non-thermal. PTT yarn is included as the fusible portion 5b.
The content G in Example 1-1, the fineness of the nylon yarn that is the heat-fusible portion 5a, the fineness of the PTT yarn that is the non-heat-fusible portion 5b, the lateral blurring property, the shape retention, and the texture are evaluated. Are also shown in Table 1 below.

<Example 1-3>
In the upper member 1 (knitted fabric 2) of Example 1-3, the content G of the heat-fusible portion 5a in the heat-fusible yarn 5 used at the same predetermined location as in Examples 1-1 and 1-2 is If the specific gravity of the nylon yarn and the PTT yarn is substantially the same, (110 dtex × 3) ÷ (110 dtex × 3 + 167 detex) ≈66.4 mass% (about 66.0 mass%) (see Table 1 described later).
As in Example 1-2, the yarn used in the same predetermined portion of Example 1-3 includes nylon yarn as the heat-fusible portion 5a, and PTT yarn as the non-heat-fusible portion 5b. It is included.
The content G in Example 1-3, the fineness of the nylon yarn that is the heat-fusible portion 5a, the fineness of the PTT yarn that is the non-heat-fusible portion 5b, the lateral blurring property, the shape retention, and the texture These are also shown in Table 1 below.

<Example 1-4>
In the upper member 1 (knitted fabric 2) of Example 1-4, the content G of the heat-fusible portion 5a in the heat-fusible yarn 5 used at the same predetermined location as in Examples 1-1 to 1-3 is If the specific gravity of the nylon yarn and the PTT yarn is substantially the same, (110 dtex × 5) ÷ (110 dtex × 5 + 167 detex) ≈76.7% by mass (about 77.0% by mass) (see Table 1 described later).
The yarn used in the same predetermined portion of Example 1-4 includes nylon yarn as the heat-fusible portion 5a as in Examples 1-2 and 1-3, and the non-heat-fusible portion 5b. As such, PTT yarn is included.
The content G in Example 1-4, the fineness of the nylon yarn that is the heat-fusible portion 5a, the fineness of the PTT yarn that is the non-heat-fusible portion 5b, the lateral blurring property, the shape retention, and the texture are evaluated. These are also shown in Table 1 below.

<Evaluation of Test 1>
As shown in Table 1, in the case where the content G is 0.0% by mass in Example 1-1, the texture is “◎”, but the lateral blurring and shape retention are “x”. In Example 1-4, when the content G is 76.7% by mass, the lateral blurring and shape retention are “◎”, but the texture is “x”.
That is, if the content is not an appropriate G, a predetermined evaluation (for example, an evaluation of “Δ” or more) can be obtained for all of the lateral blurring, shape retention and texture (that is, lateral blurring, shape retention and It can be seen that (simultaneous realization of texture) is not possible.
If it explains in detail about the suitable content rate G, when all of lateral blurring property, shape retention property, and evaluation of texture become "(triangle | delta)" or more, the minimum value of content rate G is Example 1-1, and a texture is "(circle)". In addition, the content rate G “0.0 mass%” in which the lateral blurring property and the shape retention property are “x”, and the lateral blurring property, the shape retention property and the texture in Example 1-2 are all “◯” or more. It always exists between a certain content rate G “39.7% by mass”, and the lower limit value of the content rate G is substantially between “0.0% by mass” and “39.7% by mass” “20. It can be said that it is “0 mass%”.
On the other hand, the upper limit of the content rate G when all of the evaluations of the lateral blurring property, the shape retention property and the texture are “Δ” or more is at least “◯ in the lateral blurring property and the shape retention property in Example 1-3. It can be said that the content G is “66.4% by mass” and the texture is “Δ”, but the upper limit value of the content G is smaller than “66.4% by mass” when viewed more strictly. It can be said that it is “0 mass%”.
Therefore, as described above, the content G of the heat-fusible portion 5a in the heat-sealing yarn 5 may be 20.0 mass% or more and 60.0 mass% or less, preferably 30.0 mass%. It may be 50.0% by mass or less, more preferably 35.0% by mass or more and 45.0% by mass or less (39.7% by mass, 40.0% by mass, etc.).
In other words, in this case, the content G ′ of the non-heat-bondable portion 5b in the heat-bonding yarn 5 is greater than 0.0% by mass and less than 20.0% by mass and greater than 60.0% by mass and 100%. Less than 0.0% by mass.
By becoming such content rates G and G ′, it is possible to simultaneously realize lateral blurring, shape retention and texture of the upper member 1.
When the content G of the heat-fusible part 5a exceeds 60.0% by mass, the lateral blurring and shape retention are high, but the texture becomes hard and the comfort is hindered.
On the other hand, when the content G of the heat-fusible portion 5a is less than 20.0% by mass, sufficient lateral blurring and shape retention cannot be obtained.

<Test 2-1>
In Test 2-1, Examples 2-1-1 to 2-1-5, 2-2-1 to 2-2-13 were knitted by knitting knitted fabrics having different sizes from each other. The load with respect to the predetermined | prescribed elongation in each Example was measured.
Note that “load against a predetermined elongation” means that each embodiment has a gripping interval of 100 mm and a gripping width substantially along a direction (lateral direction in FIG. 9A) corresponding to the foot torso direction C of the upper member 1. In the case of pulling with a constant speed extension type testing machine with 50 mm and a pulling speed of 200 mm / min (min), for Examples 2-1-1 to 2-1-5, the gripping interval was extended from 100 mm to 80 mm. Means the load (N (Newton)) applied to the gripping member of the testing machine at the time, and for Examples 2-2-1 to 2-2-13, the gripping interval is 100 mm to 5%, 10%, It means the load applied to the gripping member of the test machine when it is stretched by 20%.
First, each of Examples 2-1-1 to 2-1-5, 2-2-1 to 2-2-13 will be described in detail.

<Example 2-1-1>
As shown in FIG. 9 (a), the knitted fabric of Example 2-1-1 can first be a test sample (sample portions can be on both sides (upper and lower sides) in the longitudinal (warp) direction of the sample. After knitting together with abandoned knitting (abandoned knitting part), measure only the sample from which the abandoned knitting part is cut off. The knitting structure may be, for example, a smooth knitting or a tengu knitting.
As shown in FIG. 9B, the sample (knitted fabric) of Example 2-1-1 is pulled sideways (weft) by the above-described testing machine. The tenter width when the sample is pulled is about 200 mm.
In Example 2-1-1, the used yarn is the heat-sealing yarn 5, and the heat-fusible portion 5a includes a nylon (polyamide) resin yarn (nylon yarn). Since the fusible portion 5 b includes a yarn (PTT yarn) made of polytrimethylene terephthalate (PTT) resin, it can be said to correspond to the different elongation portion 4 in the knitted fabric 2.
The total fineness of the nylon yarn is 110 dtex, and the PTT yarn has a total fineness of 167 dtex of 72 filaments. The nylon thread as the heat-fusible portion 5a is wound as a sheath thread 5A for a predetermined number of times (200 times / m or the like). Moreover, Example 2-1-1 is heat-molded at a predetermined temperature (120 ° C. or the like), for example, and when this heat-molding is performed, the heat-fusible portion 5a in Example 2-1-1. Nylon yarns that are all may be melted.
In Example 2-1-1, the number of the heat-fusible yarns 5 (the number of the aligned yarns) is 3, and the content G of the heat-fusible portion 5a in the heat-fusible yarn 5 is as described above. If the specific gravity of the nylon yarn and the PTT yarn is substantially the same, (110 dtex) ÷ (110 dtex + 167 detex) ≈39.7% by mass (about 40.0% by mass).
The type, number, number of stitches, number of stitches, dimensions, density, and thickness (thickness of the knitted fabric) used in Example 2-1-1 are shown in Table 2 below, and Example 2-1 The load for an elongation of 1 is shown in FIG.

<Example 2-1-2>
In Example 2-1-2, since the used yarn is the same heat-sealing yarn 5 as that used in Example 2-1-1, it corresponds to the different elongation portion 4 in the knitted fabric 2. I can say.
The main change from Example 2-1-1 is that the number of heat-fusible yarns 5 in Example 2-1-2 is four.
Along with this change in the number, Example 2-1-2 is different from Example 2-1-1 in terms of the number of stitches, number of eyes, dimensions, density, and thickness, and is used in Example 2-1-2. The type, number, degree, number of stitches, size, density, and thickness of the yarn to be used are also shown in Table 2 described later, and the load on the elongation of Example 2-1-2 is also shown in FIG.
In addition, in Example 2-1-2, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, the content rate G, etc. Same as 1.

<Example 2-1-3>
In Example 2-1-3, the yarn used was not the heat-sealing yarn 5 used in Examples 2-1-1 and 2-1-2, but a wooly nylon yarn (a wooly nylon yarn, Or it is a main change with Example 2-1-1, 2-1-2 that it is a nylon thread (bulky processed nylon thread) which performed bulky processing.
In addition, the wooly nylon yarn in Example 2-1-3 is a double yarn having a fineness of 78 dtex and a total fineness of 156 dtex, and the number of wooly nylon yarns is four.
Along with the change in the yarn used, Example 2-1-3 is different from Examples 2-1-1 and 1-2-1 in terms of number of stitches, number of stitches, dimensions, density, and thickness. The type, number, degree, number of stitches, dimensions, density, and thickness of the yarn used in Example 2-1-3 are also shown in Table 2 to be described later, and the load on the elongation of Example 2-1-3 is also shown in FIG. Show.
In addition, in Example 2-1-3, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, and the like are the same as in Examples 2-1-1, 2- Same as 1-2.

<Example 2-1-4>
In Example 2-1-4, the used yarn is not the heat fusion yarn 5 or the woolly nylon yarn used in Examples 2-1-1 to 2-1-3, but only the PTT yarn. This is the main change from Example 2-1-1 to 2-1-3.
In addition, the PTT yarn in Example 2-1-4 also has a total fineness of 72 filaments of 167 dtex, and the number of PTT yarns is also four.
Along with the change in the yarn used, Example 2-1-4 is different from Examples 2-1-1 to 2-1-3 in the number of stitches, the number of stitches, size, density, and thickness. The type, number, degree, number of stitches, dimensions, density, and thickness of the yarn used in Example 2-1-4 are also shown in Table 2 to be described later. Show.
In addition, in Example 2-1-4, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-3.

<Example 2-1-5>
In Example 2-1-5, the used yarn is not the heat-sealing yarn 5, wooly nylon yarn, or PTT yarn used in Examples 2-1-1 to 2-1-4, but a wooly yarn. Examples 2-1-1 to 2-1-4 are polyethylene terephthalate (PET) resin threads (Woolley PET thread 1 or bulky processed PET thread (bulky processed PET thread)). Major changes.
In Example 2-1-5, the Woolley PET yarn 1 has a total fineness of 48 filaments of 167 dtex, and the number of Woolley PET yarns is four.
Along with the change in the yarn used, Example 2-1-5 is different from Examples 2-1-1 to 2-1-4 in the number of stitches, number of stitches, dimensions, density, and thickness. The type, number, number of stitches, number of stitches, dimensions, density, and thickness of the yarn used in Example 2-1-5 are also shown in Table 2 to be described later, and the load on the elongation of Example 2-1-5 is also shown in FIG. Show.
In addition, in Example 2-1-5, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-4.

<Evaluation of Test 2-1 (Examples 2-1 to 2-1-5)>
As shown in FIG. 10, Examples 2-1-1 and 2-1-2 using the heat-bonding yarn 5 have an inclination as compared with Examples 2-1-3 to 2-1-5. Since it is steep, the load required when the distance is extended (displaced) is the same as in the case of Example 2-1-1 and 2-1-2, in Example 2-1-3 to 2-1-5. It can be seen that it is larger (that is, Examples 2-1-1 and 2-1-2 using the heat-sealing yarn 5 are more difficult to extend than Examples 2-1-3 to 2-1-5).
Therefore, the heat-sealing yarn 5 of Examples 2-1-1 and 2-1-2, Woolley nylon yarn, PTT yarn, and Woolley PET yarn 1 of Examples 2-1-3 to 2-1-5 were mixed. (The portion corresponding to the different elongation part 4 in the knitted fabric 2) is knitted, and when the elongation reaches a certain level, it has an elongation preventing effect that works in a direction to suppress the displacement (heat fusion yarn 5). Can also be said to contribute to stopping growth).
Examples 2-1-3 and 2-1-5 using Woolley nylon yarn or Woolley PET yarn 1 are also the same as described above depending on the crimp of each yarn and the structure elongation in the knitted fabric of each example. It is thought that there is an effect of preventing the growth of
Further, for example, in a knitted fabric knitted by alternately laying out the thermal fusion yarn 5 and the woolly nylon yarn or the woolly PET yarn 1 or the like, even if the knitted fabric is pulled, the thermal fusion yarn It can be said that the knitting structure in each knitted fabric portion is divided at the interface between the knitted fabric portion by No. 5 and the knitted fabric portion by the Woolley yarn, and the above-mentioned stretch preventing effect by the heat fusion yarn 5 can be secured.
Furthermore, it can be said that by including the heat fusion yarn 5, the lateral blurring property is improved (lateral blurring is also suppressed), and the thermal fusion yarn in a predetermined knitted fabric portion is taken into consideration while considering the texture (comfort). By increasing the ratio of including 5, it is considered that the lateral blurring effect is effective as well as the stretch preventing effect.
In any of the examples, the larger the displacement is, the larger the load is within the range of the displacement of 0 to 80 mm. This is because even when the user U actually wears the shoes 20 corresponding to each embodiment, the displacement generated in the upper member 1 (knitted fabric 2) is less than 80 mm at most, so the larger the displacement is, It can be said that the tendency for such a load to increase is the same.

<Example 2-2-1>
In Example 2-2-1, although the yarn used was the wooly nylon yarn used in Example 2-1-3, the number of wooly nylon yarns in Example 2-2-1 (the number of assorted yarns) 3) is the main change from Example 2-1-3.
Along with the change in the yarn used, Example 2-2-1 increased the stitches, number of stitches, dimensions, density, thickness (thickness of the knitted fabric), and 5%, 10%, and 20%. The load at the time is also different from that in Example 2-1-3, and the type, number, degree, number of stitches, dimensions, density, thickness, and 5% of the yarn used in Example 2-2-1. The load when stretched by 10% and 20% is shown in Table 3 below.
In addition, in Example 2-2-1, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, and the like are the same as in Example 2-1-1. Same as 1-5.

<Example 2-2-2>
In Example 2-2-2, although the used yarn was the PTT yarn used in Example 2-1-4, the number of PTT yarns in Example 2-2-2 was three. These are the main changes from Example 2-1-4.
Along with the change of the yarn used, Example 2-2-2 also has the same effect as that of Example 2, 2-2, Scale, Size, Density, Thickness, and Load when 5%, 10% and 20% are extended. The yarn type used in Example 2-2-2, the number of yarns, the number of stitches, the number of stitches, the size, the density, the thickness, and 5%, 10%, and 20% were different. The load at the time is also shown in Table 3 to be described later.
In addition, in Example 2-2-2, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-5, 2-2-1.

<Example 2-2-3>
In Example 2-2-3, although the used yarn is the Woolley PET yarn 1 used in Example 2-1-5, the number of the Woolley PET yarn 1 in Example 2-2-3 is 3 What has been made a book is the main change from Example 2-1-5.
Along with the change in the yarn used, Example 2-2-3 also has the same effect as that of Example, number of stitches, dimensions, density, thickness, and load when stretched by 5%, 10%, and 20%. It was different from 2-1-5, and the kind of yarn used in Example 2-2-3, the number of yarns, the stitches, the number of stitches, the size, the density, the thickness, and the elongation was 5%, 10%, and 20%. The load at the time is also shown in Table 3 to be described later.
In addition, in Example 2-2-3, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-5, 2-2-1, 2-2-2.

<Example 2-2-4>
In Example 2-2-4, the used yarn was a Woolley PET yarn 2 different from the Woolley PET yarn 1 used in Example 2-1-5. This is the main change from -5 and 2-2-3.
In Example 2-2-4, the number of Woolley PET yarns 2 is three.
Along with the change of the yarn used, Example 2-2-4 also has the same effect as that of Example, number of stitches, dimensions, density, thickness, and load when stretched by 5%, 10%, and 20%. 2-1-5, 2-2-3, and the type, number, degree, number of stitches, dimensions, density, thickness, and 5% of the yarn used in Example 2-2-4, 10% % And 20% are also shown in Table 3 below.
In addition, in Example 2-2-4, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, and the like are the same as in Example 2-1-1. The same as 1-5, 22-1 to 2-2-3.

<Example 2-2-5>
In Example 2-2-5, although the used yarn was the same Woolley PET yarn 2 as that used in Example 2-2-4, the number of the Woolley PET yarns 2 was four. This is the main change from Example 2-2-4.
Along with the change in the yarn used, Example 2-2-5 also has the same effect as that of Example 2-5, the number of stitches, dimensions, density, thickness, and load when stretched by 5%, 10%, and 20%. Unlike 2-2-4, the type, number, degree, number of stitches, dimensions, density, thickness, and 5%, 10%, and 20% of the yarn used in Example 2-2-5 The load at the time is also shown in Table 3 to be described later.
In addition, in Example 2-2-5, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-5, 22-1 to 2-2-4.

<Example 2-2-6>
In Example 2-2-6, the used yarn was further different from the Woolley PET yarns 1 and 2 used in Examples 2-1-5 and 2-2-3 to 2-2-5. The use of PET yarn 3 is the main change from Example 2-1-5 and 2-2-3 to 2-2-5.
In Example 2-2-6, the number of Woolley PET yarns 3 is three.
Along with the change in the yarn used, in Example 2-2-6, the degree, the number, the size, the density, the thickness, and the load when stretched by 5%, 10%, and 20% It is different from 2-1-5 and 2-2-3 to 2-2-5, and the type, number, number of stitches, number of stitches, dimensions, density, thickness, and thread used in Example 2-2-6. Also, the load when 5%, 10%, and 20% are extended is also shown in Table 3 to be described later.
In addition, in Example 2-2-6, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. The same as 1-5, 2-2-1 to 2-2-5.

<Example 2-2-7>
In Example 2-2-7, the used yarn was the same Woolley PET yarn 3 as the yarn used in Example 2-2-6, but the number of Woolley PET yarns 3 was four. This is the main change from Example 2-2-6.
Along with the change in the yarn used, in Example 2-2-7, the number of stitches, number of stitches, size, density, thickness, and load when stretched by 5%, 10%, 20% It was different from 2-2-6, and the type, number, degree, number of stitches, dimensions, density, thickness, and 5%, 10%, and 20% of the yarn used in Example 2-2-7. The load at the time is also shown in Table 3 to be described later.
In addition, in Example 2-2-7, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. The same as 1-5, 22-1 to 2-2-6.

<Example 2-2-8>
In Example 2-2-8, the yarn used was the heat-sealed yarn 5 used in Examples 2-1-1 to 2-1-5, 2-21-1 to 2-2-7. Examples 2-1 to 2-1-5, 2 are not polyurethane or woolen nylon yarns, PTT yarns, or wooly PET yarns 1 to 3, but polyurethane (PU) resin yarns (PU yarn 1). This is the main change with 2-1 to 2-2-7.
Further, in Example 2-2-8, since the used yarn is the PU yarn 1, it can be said that the yarn corresponds to the different elongation portion 4 in the knitted fabric 2. In the case of covering a predetermined front-rear width 4dW from the position advanced forward by a predetermined length in the front-rear direction from the MP joint on the foot F of the user U, the toe-to-MP differential elongation portion 4d is covered. It can also be said.
The PU yarn 1 in Example 2-2-8 is, for example, a filament made of polyurethane resin having a total fineness of 311 dtex (280d) of a strong twist type, and 36 filaments around the polyurethane resin yarn. A PTT yarn having a total fineness of 83 dtex (75d) is wound as a sheath yarn in the S direction and the Z direction (double covering).
In addition, the number of PU yarns 1 (the number of aligned yarns) in Example 2-2-8 is two.
Along with the change in the yarn used, Example 2-2-8 increased the stitches, number of stitches, dimensions, density, thickness (knitted fabric thickness), and 5%, 10%, and 20%. The load at the time is also different from those in Examples 2-1-1 to 2-1-5, 22-1 to 2-2-7, and the type and number of yarns used in Example 2-2-8 The degree, the number, the size, the density, the thickness, and the load when stretched by 5%, 10%, and 20% are also shown in Table 3 below.
In addition, in Example 2-2-8, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. The same as 1-5, 22-1 to 2-2-7.

<Example 2-2-9>
In Example 2-2-9, the used yarn was a PU yarn 2 different from the PU yarn 1 used in Example 2-2-8. This is the main change.
Further, this Example 2-2-9 can also be said to correspond to the different elongation portion 4 and the toe / MP different elongation portion 4d because the used yarn is the PU yarn 2.
Note that the PU yarn 2 in Example 2-2-9 is, for example, a filament made of polyurethane resin having a total fineness of 233 dtex (210d) of a strong twist type, and 36 filaments around the polyurethane resin yarn. The PTT yarn having a total fineness of 83 dtex (75d) is wound as a sheath yarn in the S direction and the Z direction.
Further, the number of PU yarns 2 in Example 2-2-9 is also two.
Along with the change in the yarn used, Example 2-2-9 also has the following points. It is different from 2-1-1 to 2-1-5, 2-21-1 to 2-2-8, and the type, number, number of stitches, number of stitches, and dimensions of yarn used in Example 2-2-9 , Density, thickness, and load when stretched by 5%, 10%, and 20% are also shown in Table 3 below.
In addition, in Example 2-2-9, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. The same as 1-5, 22-1 to 2-2-8.

<Example 2-2-10>
In Example 2-2-10, the used yarn was a PU yarn 3 further different from PU yarns 1 and 2 used in Examples 2-2-8 and 2-2-9. This is the main change from Examples 2-2-8 and 2-2-9.
Further, this Example 2-2-10 can also be said to correspond to the different elongation portion 4 and the toe / MP different elongation portion 4d because the used yarn is the PU yarn 3.
The PU yarn 3 in Example 2-2-10 is, for example, 36 filaments around the polyurethane resin yarn, with a high twist type total fineness of 156 dtex (140d) polyurethane resin yarn as the core yarn. The PTT yarn having a total fineness of 83 dtex (75d) is wound as a sheath yarn in the S direction and the Z direction.
Further, the number of PU yarns 3 in Example 2-2-10 is also two.
Along with the change in the yarn used, Example 2-2-10 also has the same effect as that of Example, number of stitches, dimensions, density, thickness, and load when stretched by 5%, 10%, and 20%. It is different from 2-1-1 to 2-1-5 and 2-2-1 to 2-2-9, and the type, number, number of stitches, number of stitches, and dimensions of yarn used in Example 2-2-10 , Density, thickness, and load when stretched by 5%, 10%, and 20% are also shown in Table 3 below.
In addition, in Example 2-2-10, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. The same as 1-5, 2-2-1 to 2-2-9.

<Example 2-2-11>
In Example 2-2-11, the used yarn was a PU yarn 4 different from the PU yarns 1 to 3 used in Examples 2-2-8 to 2-2-10. This is a main change from Example 2-2-8 to 2-2-10.
Further, this Example 2-2-11 can also be said to correspond to the different elongation portion 4 and the toe / MP different elongation portion 4d because the used yarn is the PU yarn 4.
The PU yarn 4 in Example 2-2-11 is, for example, 36 filaments around the polyurethane resin yarn, with a high twist type total fineness of 622 dtex (560 d) polyurethane resin yarn as the core yarn. The PTT yarn having a total fineness of 83 dtex (75d) is wound as a sheath yarn in the S direction and the Z direction.
The number of PU yarns 4 in Example 2-2-11 is one.
Along with the change in the yarn used, in Example 2-2-11, the number of stitches, number of stitches, size, density, thickness, and load when stretched by 5%, 10%, 20% It is different from 2-1-1 to 2-1-5, 2-21-1 to 2-2-10, and the type, number, number of stitches, number of stitches, and dimensions of yarn used in Example 2-2-11 , Density, thickness, and load when stretched by 5%, 10%, and 20% are also shown in Table 3 below.
In addition, in Example 2-2-11, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-5, 22-1 to 2-2-10.

<Example 2-2-12>
In Example 2-2-12, the used yarn was a PU yarn 5 different from the PU yarns 1-4 used in Examples 2-2-8 to 2-2-11. This is a main change from Example 2-2-8 to 2-2-11.
Further, this Example 2-2-12 can also be said to correspond to the different elongation portion 4 and the toe / MP different elongation portion 4d because the used yarn is the PU yarn 5.
The PU yarn 5 in Example 2-2-12 is made of, for example, a yarn made of a polyurethane resin having a total fineness of 622 dtex (560 d) of a strong twist type and a polyurethane resin having a total fineness of 311 dtex (280 d) of a strong twist type. The yarn is aligned.
Naturally, the number of aligned PU yarns 5 in Example 2-2-12 is two.
Along with the change in the yarn used, in Example 2-2-12, the number of stitches, number of stitches, size, density, thickness, and load when stretched by 5%, 10%, 20% It is different from 2-1-1 to 2-1-5, 2-21-1 to 2-2-11, and the type, number, number of stitches, number of stitches, and dimensions of yarn used in Example 2-2-12 , Density, thickness, and load when stretched by 5%, 10%, and 20% are also shown in Table 3 below.
In addition, in Example 2-2-12, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. It is the same as 1-5, 22-1 to 2-2-11.

<Example 2-2-13>
In Example 2-2-13, the used yarn was a PU yarn 6 different from the PU yarns 1 to 5 used in Examples 2-2-8 to 2-2-12. This is a main change from Example 2-2-8 to 2-2-12.
Further, this Example 2-2-13 can also be said to correspond to the different elongation portion 4 and the toe / MP different elongation portion 4d because the used yarn is the PU yarn 5.
The PU yarn 6 in Example 2-2-13 is, for example, 36 filaments around a polyurethane resin yarn having a core yarn of a polyurethane resin yarn having a total fineness of 622 dtex (560 d) of high twist type. The PTT yarn having a total fineness of 83 dtex (75d) is wound as a sheath yarn in the S direction and the Z direction.
The number of PU yarns 6 in Example 2-2-13 is two.
Along with the change in the yarn used, in Example 2-2-13, the number of stitches, number of stitches, size, density, thickness, and load when stretched by 5%, 10%, 20% It is different from 2-1-1 to 2-1-5, 2-21-1 to 2-2-12, and the type, number, number of stitches, number of stitches, and dimensions of yarn used in Example 2-2-13 , Density, thickness, and load when stretched by 5%, 10%, and 20% are also shown in Table 3 below.
In addition, in Example 2-2-13, the configuration of the test sample shown in FIGS. 9A and 9B, the knitting structure, the measurement location, the pulling method, etc. The same as 1-5, 2-2-1 to 2-2-12.

<Evaluation of Test 2-1 (Examples 2-2-1 to 2-2-13)>
As shown in Table 3, Examples 2-2-8 to 2-2-13 using PU yarns 1 to 6 were made of Woolley yarns such as Woolley nylon yarns and Woolley PET yarns 1 to 3, and PTT yarns. Since the load at each displacement is low as compared with the used Examples 2-2-1 to 2-2-7, the load required for extending (displacement) the same distance is the same as in Examples 2-2-8 to 2-2-13 is larger than Examples 2-2-1 to 2-2-7 (that is, Examples 2-2-8 to 2-2-13 using PU yarns 1 to 6 are It can be seen that it is harder to extend than Examples 2-2-1 to 2-2-7).
In any of the examples, the larger the displacement is, the larger the load is within a range where the displacement is 5% to 20%. This is because even when the user U actually wears the shoes 20 corresponding to each embodiment, the displacement generated in the upper member 1 (knitted fabric 2) is less than 5% to 20% at most, so the displacement is It can be said that the larger the load is, the larger the load tends to be.

<Test 2-2>
In Test 2-2, durability in Example 2-1-2 using the above-described heat-sealing yarn 5 was confirmed.
As shown in FIG. 11, the test sample (knitted fabric, sample) of Example 2-1-2 that was heat-molded using the heat-bonding yarn 5 was a predetermined chuck position (chuck position interval). In a state where the position 2 is gripped (chucked), tension / relaxation (fir operation) was repeated 10,000 times (with fir processing) at a predetermined amplitude (4 cm, etc.).
What expanded the surface of Example 2-1-2 before and after this fir processing is shown by (a) and (b) of FIG. 12, and the load with respect to the extension of Example 2-1-2 before and after fir processing Is shown in FIG.

<Evaluation of Test 2-2>
As shown in FIG. 12A, in Example 2-1-2 before fir processing, the heat-fusible portion 5a in the heat-fusible yarn 5 fused (fixed after being melted) by thermoforming. It can be said that (fused part 5a ') is continuous (fused between adjacent yarns).
On the other hand, as shown in FIG. 12 (b), in Example 2-1-2 after fir processing (fir operation 10,000 times), although there is a portion where the fusion part 5a ′ is divided, Since there is a portion where the long fused portion 5a ′ is also left, it can be said that the elongation preventing effect (elongation suppressing effect) described in Test 2-1 remains even after fir processing (having a predetermined durability).
As shown in FIG. 13, the shape of the graph showing the load on the elongation of Example 2-1-2 before and after fir processing is not much different, and even after fir processing (fir operation 10,000 times), It can be said that it has an anti-elongation effect (elongation suppression effect).
Furthermore, as in Example 2-1-2, it can be said that the thermal blurring yarn 5 is included so that the lateral blurring property is improved (the lateral blurring is also suppressed), and the texture (comfort) is taken into consideration. It is considered that by increasing the ratio of including the heat-sealing yarn 5 in the predetermined knitted fabric portion, the lateral blurring property is effective as well as the stretch preventing effect.

<Example 3>
Finally, reference is made to the knitted fabric 2 which is Example 3.
The yarn used in Example 3 may be any yarn. For example, four types of wooly nylon yarn, heat-sealing yarn 5, PU yarn, and another PU yarn may be used. Each yarn will be described in detail below. To do.

First, as described above, the wooly nylon yarn is a wooly nylon (polyamide) resin yarn (bulky nylon yarn (bulky processed nylon yarn)) and a double yarn of 78 dtex fineness. Is 156 dtex, and may be replaced with another polyethylene terephthalate (PET) resin yarn (PET yarn).
Next, as described above, the heat-fusible yarn 5 also includes nylon yarn as the heat-fusible portion 5a and PTT yarn as the non-heat-fusible portion 5b, and the total fineness of the nylon yarn is 110 dtex, and the PTT yarn has a total fineness of 167 dtex of 72 filaments. For example, the PTT yarn that is the non-heat-bondable portion 5b is used as the core yarn 5B, and the heat-bondable portion 5a is provided around the core yarn 5B. A certain nylon thread is wound as a sheath thread 5A for a predetermined number of times (200 times / m or the like), and the content G of the heat-fusible portion 5a in the heat-fusible thread 5 is, as described above, the nylon thread and the PTT. If the specific gravity of the yarn is substantially the same, (110 dtex) ÷ (110 dtex + 167 detex) ≈39.7% by mass (about 40.0% by mass). Further, the heat-bonding yarn 5 may be one in which, for example, all the nylon yarn that is the heat-fusible portion 5a is melted when being heat-molded.
The PU yarn, like the PU yarn 1 described above, is, for example, a 36-filament around the polyurethane resin yarn, with a high twist type total fineness of 311 dtex (280 d) polyurethane resin yarn as the core yarn. A PTT yarn having a total fineness of 83 dtex (75d) is wound as a sheath yarn in the S and Z directions (double covered), and the total fineness of the PU yarn as a whole is 478 dtex (430d).
Finally, another PU yarn is, for example, a polyurethane resin yarn and a double yarn having a fineness of 78 dtex (70d) and a total fineness of 156 dtex, and may be replaced with another yarn.

By knitting these four types of yarns with a knitting machine having 10 carriers, the knitted fabric 2 of Example 3 can be obtained. The number of each carrier, the type of yarn supplied to the carrier, and the number of yarns are supplied. Table 4 below shows the (number of arrangements), the knitting structure, the number of stitches, the portion used in the knitted fabric 2, the amount used and the usage rate in one knitted fabric 2.
Here, as shown in Table 4, among the 10 carriers in total, No. 1 and No. Ten carriers were not used.
In addition, No. which is a carrier of wooly nylon yarn. No. 4, which is the carrier of the heat-sealing yarn 5, has a usage amount (usage weight) of 10.9 g and a usage rate of 40.5% in the knitted fabric 2 of the total of 4, 6, and 7. 3 and 2 (which can also be referred to as different elongation portions 4), the amount of yarn used in the knitted fabric 2 is 11.2 g, the usage rate is 41.6%, and the PU yarn carrier No. The total amount of yarns 9 and 8 (which can also be referred to as another different elongation portion 4) in the knitted fabric 2 is 4.3 g, the usage rate is 16.0%, and No. 1 which is another PU yarn carrier. 5 (also another different elongation part 4) in the knitted fabric 2 was 0.5 g, and the usage rate was 1.9%.
The number of shoe holes 10a in the knitted fabric 2 of Example 3 may be any number. For example, 5 (5 holes), 3 (3 holes), 6 (6 holes) It may be determined by whether or not the tightening adjustment of the rear portion of the MP joint in the foot F of the user U is performed, the holdability of the tongue portion 11 and the upper member 1 (knitted fabric 2), and the like.

<Proportion of the heat-fusible portion 5a in the knitted fabric 2 of Example 3, gradation arrangement, etc.>
As shown in Table 4 and above, the total ratio (usage rate) of the portion using the heat fusing yarn 5 is 41.6%, and when this is multiplied by 39.7%, which is the content rate G, The ratio of the heat-fusible portion 5a in the knitted fabric 2 of Example 3 is 41.6% × 39.7% = 0.416 × 0.397 = 0.165152. 17%.
Further, in the knitted fabric 2 of Example 3, a portion using the heat-sealing yarn 5 (a black portion in FIG. 1 and a portion for preventing elongation) and a portion using a wooly nylon yarn (in FIG. 1). There is a white part and a part to be stretched), but if the part to be stretched and the part to be stretched are suddenly switched, the comfort becomes worse (causing the user U to feel uncomfortable), so the two parts are gently The arrangement to switch, that is, the gradation arrangement.
As an example of this gradation arrangement, as shown in FIG. 1, in the knitted fabric 2 of Example 3, the proportion of the portion (white portion) that gradually extends from the toe portion 2t to the heel portion 2h is high.
In addition, the part enclosed with the dotted line in FIG. 1 is a part (wrinkle prevention part at the time of a bending | flexion) using PU thread | yarn, Among the used parts in Table 4, the foot 2r lower part is the user's U part. It can be said that it is a part covering the ankle of the foot F.

<Others>
The present invention is not limited to the embodiment described above. Each configuration of the upper member 1, the shoe 20, the sole member 30, etc., or the overall structure, shape, dimensions, and the like can be appropriately changed in accordance with the spirit of the present invention.
The upper member 1 (knitted fabric 2) does not need to have the blade portion 10 and the tongue portion 11.

The upper member 1 may be coated with a functional resin such as water-repellent antifouling.
The upper member 1 may be printed or a sticker may be attached.
The shoe 20 may not have the shoelace 31 and the heel counter 32.

  The upper member, shoes, and manufacturing method of the upper member according to the present invention can be used not only for athletes participating in competitions but also for any user regardless of age or gender, such as for civil runners or for rehabilitation. It is.

DESCRIPTION OF SYMBOLS 1 Upper member 1L Length of the upper member in the front-rear direction 2 Knitted fabric 2t Toe portion 2h in knitted fabric 2r heel portion 2k in knitted fabric Foot 2s in knitted fabric Foot bottom portion 2h 'in knitted fabric Rear heel surface 3 in knitted fabric 3a Loosely knitted part 4 Different stretched part 4a Lisfranc / Chopard joint stretched part 4aW Lisfranc / Chopard joint stretched part 4b Front / back width 4b MP Different stretched part 4bW Front / back width 4c Different stretched part 4c Degree part 4d Nail tip / MP differential elongation part 4dW Front / rear width of toe tip / MP differential elongation part 5 Thermal fusion yarn 5a Thermal fusion portion 5b Non-thermal fusion portion 5A Sheath yarn 5B Core yarn 20 Shoe 30 Sole member 30L Length of the sole member in the front-rear direction 32 Heel counter 33 of the sole member Notch portion U of the heel counter of the sole member User F User's foot FS1 One side FS2 of the user's foot The other of the user's foot Content α heel anteversion angle heat fusible portion at the bottom L longitudinal direction W foot girth C leg girth direction D elongation G thermal fusion yarn side FB user's foot

Claims (15)

An upper member of a shoe worn by a user,
The upper member is knitted integrally with a knitted fabric,
This knitted fabric covers at all positions in the front-rear direction of the user's foot, covering the circumference of the foot torso including at least from one side of the user's foot through the bottom to the other side,
The upper member is characterized in that the knitted fabric is in contact with the user's foot without steps in the front-rear direction and the torso direction.   2. The knitted fabric according to claim 1, wherein at least one of the knitting structure, the number of stitches, the stitch size, and the yarn used has a different knitted portion different from other portions. The upper member as described.   The different knitted portion includes a toe portion that covers a toe side of the user's foot in the knitted fabric, a heel portion that covers a heel side of the user's foot in the knitted fabric, and an upper opening in the knitted fabric. Either one of the mouth and the sole part covering the sole side of the user's foot in the knitted fabric has a smaller total fineness of yarn used than the other part, and / or from the other part. The upper member according to claim 2, further comprising a dissimilar knitted portion with a reduced number of stitches in a predetermined length.   The upper member according to claim 2 or 3, wherein the different knitted portion has a different elongation portion having a different elongation from other portions. The differential elongation portion has a toe / MP differential elongation portion that covers a predetermined front-rear width from a position advanced forward by a predetermined length in the front-rear direction from the MP joint in the user's foot to the toe. ,
The upper member according to claim 4, wherein the toe / MP differential elongation portion includes a yarn made of polyurethane resin in a yarn to be used. The different elongation portion includes a heat fusion yarn having a heat-fusible part and a non-heat-fusing part in a yarn to be used,
The upper member according to claim 4 or 5, wherein the heat-fusible yarn has a content of the heat-fusible part of 20 mass% or more and 60 mass% or less.   The heat-sealing yarn has a covering structure in which a sheath yarn that is the heat-fusible portion is wound around a core yarn that is the non-heat-fusible portion. Upper member. The differential elongation portion has a Lisfranc-Chopard joint differential elongation portion covering a predetermined front-rear width from the vicinity of the Lisfranc joint of the user's foot to the vicinity of the Chopard joint,
The upper member according to any one of claims 4 to 7, wherein the Lisfranc-Chopard joint differential elongation portion has a lower elongation than other portions. The different elongation part has an MP joint different elongation part covering a predetermined front-rear width from the MP joint of the user's foot toward the heel,
This MP joint elongation difference is higher than the Lisfranc-Chopard joint elongation portion, or substantially the same as the Lisfranc-Chopard joint elongation portion, and the Lisfranc-Chopard joint elongation portion. The upper member according to claim 8, wherein the elongation is lower than that of the portion other than the portion. The different elongation part has a toe different elongation part that covers from the toe of the user's foot to a position closer to the toe than the MP joint,
The toe differential elongation portion is higher in elongation than the Lisfranc / Chopard joint differential elongation portion and the MP joint differential elongation portion, or at least one of the Lisfranc / Chopard joint differential elongation portion and the MP joint differential elongation portion. The upper member according to claim 9, wherein the upper member has substantially the same elongation and has a lower elongation than portions other than the Lisfranc-Chopard joint differential elongation portion and the MP joint differential elongation portion. The heel rear surface of the knitted fabric is tilted forward,
The upper member according to any one of claims 1 to 10, wherein a forward tilt angle formed by the rear surface and the vertical direction is 65 ° or more and 85 ° or less. The upper member according to any one of claims 1 to 11, and a sole member to which the upper member is attached,
A shoe characterized in that the length of the upper member in the front-rear direction is shorter than the length of the sole member in the front-rear direction. A sole member of a shoe worn by a user,
Having a heel counter erected from the periphery of the heel side of the sole member;
The heel counter is formed with a notch for notching the heel counter from above.   A shoe comprising the upper member according to any one of claims 1 to 11 and the sole member according to claim 13 to which the upper member is attached. A method for manufacturing an upper member of a shoe worn by a user,
As the upper member, a knitted fabric covering at least all the positions in the front-rear direction of the user's foot covering the torso including at least from one side of the user's foot to the other side through the bottom. Knitting together,
The one-piece knitting includes a toe portion that covers the toe side of the user's foot, a heel portion that covers the heel side of the user's foot, an open mouth, and a foot that covers the back side of the user's foot. Start with one of the back parts,
The method of manufacturing an upper member, characterized in that the started portion is integrally knitted with fewer stitches in a predetermined length than other portions.