JPH0779721B2 - footwear - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is not bulky when carried.
It is about footwear .

[0002]

2. Description of the Related Art Conventionally, footwear, especially beach sandals, have been used for walking on a sandy beach when swimming in the sea.

[0003]

However, in the conventional beach sandals, for example, when going out for sea bathing using public transportation, it is common to change from normal footwear to footwear because of the local circumstances. Since it is bulky, it was inconvenient to carry it in a bag or the like. Also, walk along the beach wearing traditional beach sandals
And beach sandals for swimming and swimming
There is a problem that it may come off because the
It was

The invention described in claims 1 and 2 is
The purpose is to provide footwear that is not bulky to carry . Well
Also, for the purpose of providing footwear that allows easy insertion of the foot when used.
To do. In addition, take off while walking
The purpose is to provide footwear that can be prevented and can swim while wearing .

[0005]

The invention according to claim 1
Is a footwear comprising a sole bottom portion formed in a substantially sole shape, and a sole portion partially joined to the sole sole portion and the other portion covering at least the foot from the toe to the ankle, the instep. The part has high tensile strength, excellent shrinkage, is lightweight and has a thin plate shape.
A first notch portion, which is made of foam resin and has a substantially oval shape or a substantially one-letter shape, into which the whole of the instep cover portion is held in contact with the back bottom portion when not in use, and a foot can be inserted, and substantially oval or second cut portion immediately of substantially letter shape such that a plurality of formed so as to surround one notch portion in a substantially circular
And Bei, the second cut portion, ankle instep of the carapace portion
Partial side and outside of the ankle part that covers the ankle of the instep and
And the inner side of the first notch portion, and substantially
A plurality of first slits formed in the parallel direction and the instep cover
Installed on the toe side of the instep part or on the toe part of the instep part.
And is formed in a direction orthogonal to the cutting direction of the first cutting portion.
The plurality of second slits formed and the instep part of the instep part
Notch of the first notch provided on the outer side and the inner side
A plurality of third picks formed in a direction inclined with respect to the direction
And the first notch provided on the heel of the instep
A plurality of fourth slips formed in an arc shape so as to surround the recessed portion.
The technical means consisting of

The invention according to claim 2 has a substantially sole shape.
Formed back bottom part, part of which is joined to the back bottom part,
Part covers at least the foot from the toe to the ankle
In the provided footwear, the instep cover has high tensile strength.
It is made of foamed resin that is light and thin,
When not in use, the entire instep cover contacts the back bottom to keep
Holds and has an oval shape or a shape that allows the foot to be inserted.
The first notch such as a single letter, and the first notch
A plurality of substantially oval shapes formed so as to surround the circumference in a substantially annular shape.
Or a second notch portion having a substantially one-letter shape, and the first notch
The sewn part has sewn parts sewn at both ends for reinforcement.
And the second cut portion, the ankle portion of the instep of the carapace portion
Provided on the outer side and the inner side of the
A plurality of first slits formed in a direction substantially parallel to the insertion direction
And the toe part side of the instep part of the instep part and the instep part
It is provided in the toe part, and in the cutting direction of the first cutting part
A plurality of second slits formed diagonally to the front,
The first notch provided on the ankle part of the instep part of the instep cover
A plurality of parts formed in the direction orthogonal to the cutting direction of the groove
The third slit, the heel of the instep, and the instep
Provided on the outside and inside of the ankle part that covers the ankle, and
A plurality of first arc-shaped portions are formed so as to surround the first cut portion.
The technical means consisting of 4 slits was adopted.

[0007]

According to the inventions of claims 1 and 2,
For example, when not in use, the entire instep is contracted by its own elastic deformation, so that it is held in contact with the bottom of the back, so the footwear is not bulky when carried. When using, insert your foot inside the first notch of the instep, and the space between the first notches that are approximately one letter widen radially and
2 A plurality of first portions formed so as to surround the notched portion in a substantially annular shape
~ Is the 4th slit oriented in a direction substantially orthogonal to the cutting direction?
Thus, the space between the instep and the bottom of the back becomes large, and at least the foot from the toe to the ankle can be easily inserted. At this time, the instep cover has high tensile strength and excellent shrinkability, and since it is made of lightweight and thin plate-like foamed resin , it has high shrinkability and closely adheres to the foot.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The footwear of the present invention will be described based on the embodiments shown in FIGS.

[ Structure of First Embodiment] FIGS. 1 to 3 are views showing a first embodiment of the present invention and showing beach sandals.

The beach sandals 1 include a back bottom portion 2 having an uneven surface on the back surface so that it can be easily walked on a sandy shore, and an instep portion 3 having a cut end fused to the outer peripheral edge of the back bottom portion 2. It is composed of and and is very light with a total weight of about 30 g.

The sole bottom portion 2 is a portion that comes into contact with the sole of the foot. The back bottom portion 2 is formed of PVC foamed resin such as vinyl chloride or polyvinyl chloride or RV foamed resin having a substantially sole shape, high tensile strength, and excellent shrinkability.

The instep cover 3 is a portion that covers the foot from the toe to the ankle. This instep part 3 is formed of PVC foamed resin or RV foamed resin such as vinyl chloride or polyvinyl chloride, which has high tensile strength and excellent contractility, and has the same shape as the back bottom part 2 when not in use. And a plurality of second cutouts 5 formed so as to surround the first cutout 4 in a substantially annular shape.
And have been drilled.

The first notch 4 has an oval shape, is formed between the instep portion 6 of the instep portion 3 and the heel portion 7 of the instep portion 3, and can be expanded to a size in which the ankle can be inserted. The linear portion 8 and the semicircular portions 9 formed at both ends of the linear portion 8 are configured.

The second notch portion 5 includes a plurality of first to fourth slits.
Each of the first to fourth slits 5
a to 5d are linear parts 1 each having a substantially oval shape and capable of expansion and contraction.
0 and semicircular portions 11 formed at both ends of the linear portion 10, respectively .

The plurality of first slits 5a are instep ankle portion 12 side and shaft part 6 of the section 3, it provided outside and inside of the ankle portion 12 that covers the ankle carapace portion 3 is, first cut section Four
Is formed in a direction substantially parallel to the cutting direction. Multiple first
The 2 slits 5b are the toe parts 13 of the instep part 6 of the instep cover part 3.
Side and were found provided on the toe portion 13 of the carapace portion 3 is formed in a direction perpendicular to the cutting direction of the first cut portion 4.

The plurality of third slits 5c is Jia et provided outside and inside of the upper portion 6 of the section 3 is, are formed in a direction inclined with respect to the cutting direction of the first cut portion 4. Compound
The number of the fourth slits 5d is provided in the heel portion 7 of the instep portion 3.
And is formed in an arc shape so as to surround the first cut portion 4.

[Manufacturing Method of First Embodiment] A manufacturing method of the beach sandal 1 will be described with reference to FIGS. 1 and 2.

A) First step Light weight, thin PVC foam resin or RV with a thickness of about 4 mm
The elastic material made of foamed resin is provided with a first cut portion 4 having a single letter shape, and the second cut portion 5 having a substantially single letter shape is formed so as to surround the first cut portion 4 in a substantially annular shape . 4th slip
A molded product (not shown) is formed by forming one or more groups in which a plurality of holes 5a to 5d) are formed. Then, the one or more instep portions 3 are formed by cutting the second cut portion 5 of the molded product into a substantially sole shape.

(B) Second step A thin plate-like P having a thickness of about 5 mm and having irregularities formed on its back surface.
By cutting one or more elastic materials made of VC foam resin or RV foam resin into a substantially sole shape, one or more sole bottom portions 2
To form.

C) Third step The cutting portion (outer peripheral edge) of the instep cover 3 is joined to the outer peripheral edge of the back bottom 2 by a joining method such as fusion, adhesion or pressure bonding (for example, to the adhesive 29).
The lightweight beach sandals 1 can be manufactured in large quantities and at low cost by joining them by bonding.

[Operation of First Embodiment] A method of using the beach sandal 1 will be described with reference to FIGS. 1 to 3.

When not in use, as shown in FIG. 2, since the entire instep cover 3 contracts due to its elastic deformation, it is held in surface contact with the back bottom part 2, so that the beach sandals are held. It does not become bulky when carrying 1 in a bag or the like.

In use, when the foot is inserted through the first notch 4 of the instep cover 3, the intervals between the first notches 4 widen radially. Further, when the foot is inserted, the first incision portion 4 is formed on the instep portion 6, heel portion 7, ankle portion 12 and toe portion 13 of the instep portion 3 so as to surround the first incision portion 4 in an annular shape .
The intervals of the first to fourth slits 5a to 5d also widen in a direction substantially orthogonal to the cutting direction, and the distance between the instep covered portion 3 and the back bottom portion 2 increases. The carapace portion 3 foot ankle than toe is easily inserted between the carapace portion 3 and Urasoko portion 2 by Rukoto spread to the shape of the foot.

At this time, as shown in FIG.
Toes but because of high shrinkage which has the thin-plate-shaped PVC foamed resin and RV foamed resin, Jia, you close to close contact with the ankle and heel.

On the contrary , the beach sandals 1 can be removed by pulling out the foot from the first notch 4 of the instep cover 3. At this time, as shown in FIG. 2, the instep cover 3 contracts due to elastic deformation and the entire instep cover 3 is held in contact with the back bottom part 2. Not bulky.

[Effects of the First Embodiment] As described above, the beach sandals 1 of this embodiment are lightweight and not bulky, so they are very convenient to carry and can be manufactured at low cost.
As a disposable beach sandal 1
Is also available. Also, due to its high shrinkability, the toes, insteps,
Tightly adhere to the ankle and heel. So, for example, the sea
It is possible to prevent it from coming off while walking on the shore.
You can also swim with the beach sandals 1 on .

[ Configuration of Second Embodiment] FIGS. 4 to 6 are views showing a second embodiment of the present invention and showing beach sandals.

In the instep part 3 of the beach sandal 21 of this embodiment, a material 23 such as nylon, tetron, polyester or the like is stretchable as a skin on both sides of a rubber type sponge 22 such as a CR sponge or a latex sponge. The one that is pasted with the weaving method is used. The instep portion 3 has a thickness of about 2 mm, but has sufficient strength. The first cut portion 24 of the instep cover 3 has a substantially one-letter shape, and has sewn portions 25 sewn for reinforcement at both ends.

Further, instep second cut portion 26 of the part 3 is double
A number of first to fourth slits 26a to 26d.
The first to fourth slits 26a to 26d have a substantially one-letter shape and are formed so as to surround the first cut portion 24 in a substantially annular shape.

The plurality of first slits 26a are provided, et al is outside and inside of the ankle portion 12 of the instep 6 of the carapace portion 3,
It is formed in a direction substantially parallel to the cutting direction of the first cutting portion 24. A plurality of second slits 26b are instep and toe portion 13 of the instep 6 of the section 3, shell provided et is the toe portion 13 of the part 3, in a direction oblique to the cutting direction of the first notch portion 24 Has been formed.

The plurality of third slits 26c are Jia et al provided the ankle portion 12 of the instep 6 of the section 3 is, are formed in a direction perpendicular to the cutting direction of the first cut portion 4. plural
The fourth slit 26d is provided outside and inside the heel portion 7 of the instep portion 3 and the ankle portion 12 that covers the ankle of the instep portion 3.
And, it is formed in an arc shape so as to surround the first cut portion 24.

On the other hand, the back bottom 2 has a thickness of about 3 mm,
Foam 2 made of synthetic resin such as EVA, PVC, PP, PE
7 is used. Note that slippage may be prevented by forming unevenness on the back surface of the back bottom portion 2.

The back bottom portion 2 and the instep portion 3 of this embodiment are joined to each other by an annular cloth material attached so as to surround the outer peripheral edge of the back bottom portion 2 and the outer peripheral edge of the instep portion 3. 28
Are sewn to the outer peripheral edge of the back bottom portion 2 and the outer peripheral edge of the instep portion 3. The cloth material 28 is sewn to the outer peripheral edge of the back bottom portion 2 and the outer peripheral edge of the instep portion 3 with both ends folded back.

[Modification] In the present embodiment, the present invention is applied to beach sandals,
Fins may be provided on the toe of the instep.

In the present embodiment, the present invention is applied to beach sandals, but slippers and sandals to be worn when walking on the ground, floors and corridors of airplanes, ships, inns, etc., driving a vehicle, or riding a vehicle. It may be applied to shoes. Further, the present invention can be used as portable footwear for entering a building that requires slippers such as slippers.

Further, the first cut portion or the second cut portion may have circular small hole portions at both ends of the one-character portion for avoiding stress concentration. Then, the cut width at both ends of the first cut portion and the cut width at both ends of the second cut portion may be wider than other portions. Further, an opening may be formed in the bottom of the back in order to remove foreign matter such as sand that has entered the footwear.

[0037]

EFFECTS OF THE INVENTION The invention according to claim 1 and claim 2
Is lightweight and not bulky and can provide footwear that is very convenient to carry. Also, when using,
The distance between the first notches extends radially and the second notches
A plurality of first to first formed so as to surround the recessed portion in a substantially annular shape
4 slits go in a direction almost orthogonal to the cutting direction
At least the tip of the toe between the upper and the bottom of the back to spread
The legs up to the ankle can be easily inserted. In addition, foam resin
Because it has a high contraction property, it has high toe, instep, ankle and
It closely adheres to the heel. Therefore, when walking
It is possible to prevent it from coming off, and with footwear on
You can also swim.

[Brief description of drawings]

FIG. 1 is a plan view showing a beach sandal to which a first embodiment of the present invention is applied.

FIG. 2 is a cross-sectional view showing a beach sandal to which the first embodiment of the present invention is applied.

FIG. 3 is a side view showing a state in which the beach sandals to which the first embodiment of the present invention is applied are worn.

FIG. 4 is a plan view showing a beach sandal to which a second embodiment of the present invention is applied.

FIG. 5 is a sectional view showing a beach sandal to which a second embodiment of the present invention is applied.

FIG. 6 is a side view showing a state in which the beach sandals to which the second embodiment of the present invention is applied are worn.

[Explanation of symbols]

1 Beach sandals (footwear) 2 Back bottom part 3 Instep part 4 1st notch part 5 2nd notch part 5a 1st slit 5b 2nd slit 5c 3rd slit 5d 4th slit 6 Instep part 7 Heel part 12 Ankle part 13 Toe part

Claims (2)

[Claims] 1. A footwear comprising a sole bottom portion formed in a substantially sole shape, and an instep portion partly joined to the sole sole portion and the other portion covering at least the foot from the toe to the ankle. The instep part has high tensile strength, excellent shrinkability, and is lightweight.
A thin plate-shaped foamed resin , the entire instep portion is held in contact with the back bottom portion when not in use, and a first notch portion into which a foot can be inserted, such as a substantially oval shape or a substantially one-letter shape, And a plurality of substantially oval-shaped or substantially one-letter-shaped second members formed so as to surround the first cut portion in a substantially annular shape.
Comprises a cut portion, said second notch portion, ankle portion side of the instep of the carapace portion
And the outside and inside of the ankle that covers the ankle of the instep
Is provided in a substantially parallel direction to the cutting direction of the first cutting portion.
A plurality of first slits formed in the direction and the instep of the instep
Provided on the toe side of the part or on the toe part of the instep part.
Is formed in a direction orthogonal to the cutting direction of the first cutting portion.
The plurality of second slits and the outside of the instep part of the instep part
And a cutting direction of the first cut portion provided inside
A plurality of third slits formed in a direction inclined with respect to
And the first notch provided on the heel of the instep
A plurality of fourth slits formed in an arc shape so as to surround the
Footwear characterized by consisting of. 2. A sole bottom part formed in a substantially sole shape and a part thereof.
Is joined to the bottom of the sole, and the other part is at least
In footwear with an instep covering the legs up to the neck, the instep has high tensile strength, excellent contractility, and light weight.
Made of thin plate foamed resin, and when not in use
Hold your body in contact with the bottom of the sole and insert your feet.
1st notch that can be inserted in a substantially oval shape or a substantially single letter shape
Part, and the circumference of the first notch so as to surround it in a substantially annular shape
A plurality of substantially elliptical shapes or substantially one-letter shapes formed on the second
A notch portion, and the first notch portion is sewn on both ends for reinforcement.
The sewing machine has a sewn portion, and the second notch portion is an ankle portion of an instep portion of the instep cover portion.
Notch of the first notch provided on the outer side and the inner side
A plurality of first slits formed substantially parallel to the direction,
The toe side of the instep part of the instep part or the toe of the instep part
Is provided in the portion, with respect to the cutting direction of the first cutting portion
And a plurality of second slits formed diagonally
The first notch is provided on the ankle part of the instep part of the part
A plurality of third portions formed in a direction orthogonal to the cutting direction of the
Slit, heel of the instep, ankle of the instep
Is provided on the outer side and the inner side of the ankle portion that covers the
A plurality of fourth slits formed in an arc shape so as to surround the cut portion.
Footwear characterized by consisting of lit.