JPH10165203A - Shoes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide sole parts and shoes securing required weight in place of heavy inner pads and further having comfortability to use and sufficient durability. SOLUTION: A hole-shaped space 3 is formed in the inside area of shoes except for an upper surface outer peripheral part 2 of its main sole 10. A weight member 4 in the form of plate or block or an object obtained by mixing and kneading metal particles with an adhesive is integrated between the spaces 3 and sole parts 1 and shoes having the required weight are formed. Since the sole part is structured so as to be easily bent in longitudinal direction but not to be bent in lateral direction by integrating the weight member, the stretching and deforming of sole can be well followed up and comfortability to use and sufficient durability can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention solves the problem of lack of exercise in daily life, such as walking while wearing heavy shoes.
Further, the present invention relates to the provision of a heavy sole portion and a heavy shoe incorporating a weight member in order to positively strengthen the legs and hips and enhance the circulation function.

[0002]

2. Description of the Related Art Conventionally, there is a heavy shoe using a heavy insole made of a metal or other material having a large specific gravity as a main constituent member.
(See Japanese Utility Model Application Laid-Open No. 62-134405, Japanese Patent Application No. 7-830)
56). In order to ensure the right weight, the heavy insole will have the appropriate thickness. Also, due to the nature of heavy shoes,
It is desirable to use an insole having a large cushioning property in combination, and these insoles are thick as a whole. Therefore, when installing these insoles in shoes, the problem of lack of space in shoes tends to occur. In addition, it is difficult to match the insole shape with the shoe inner sole three-dimensionally well for shoes that originally have a shape that closely approximates the three-dimensional shape of the sole and have a good fit. There is a problem that it is easy to become. Furthermore, the heavy insole itself needs to maintain sufficient durability and a comfortable feeling of use, and therefore requires considerable technical considerations in its manufacturing stage. On the other hand, in various conventional shoes, an outsole having a lattice-like reinforcing portion (12) shown in FIG. 7 or an outsole having a reinforcing portion of similar or various complicated patterns is employed. I have. These outsole are often formed integrally. And
It is considered that the purpose or consideration is to use a material having high abrasion resistance, facilitate a required bending action at the ball portion, and reduce the weight of the shoe. But,
The space surrounded by the reinforcing portion (12) is a dead volume. In addition, in the shoes using the outsole of these structures, the pattern shape of the reinforcing part affected the shoe inner bottom surface due to long-term use (application of weight), and the shoe inner bottom surface corresponded to the reinforcing part pattern. Irregularities appear and the usability often deteriorates.

[0003]

Problems to be solved by the above-mentioned conventional items and necessary items as heavy shoes are arranged, and problems to be solved are described below. I. Use the volume of the sole to secure the required weight. B. Weight distribution can be appropriately performed from the heel region to the toe region of the sole portion. C. Flexibility and stability capable of forming a smooth curved surface following the bending and elongation deformation of the sole (particularly the ball portion) during walking running can be secured and maintained. D. It has sufficient durability against infinitely repeated large bending deformation and stress. E. Make sure that no irregularities corresponding to the reinforcement pattern appear on the bottom surface of the shoe.

[0004]

According to the present invention, the sole portion and the shoe for solving the above-mentioned problems are as follows. A hole-shaped space (3) is provided in an inner region of the outsole (10) of the shoe except for the outer peripheral portion (2). This space (3)
In parallel with the horizontal direction (left-right direction), a large number of slender plate-like, block-like, or weight members (4) such as a kneaded mixture of metal particles and an adhesive material are incorporated, and a heavier sole portion (1)
Make Also, using this heavy sole portion, a shoe that is heavier as a whole is created. As the material of the weight member (4), a metal such as iron, cinch or lead is suitable. In the case of a plate or a block, iron or cinch which can exhibit rigidity is more suitable. It is desirable that the kneaded material also solidifies to the extent that it exhibits rigidity. As the depth of the hole-shaped space (3), the thickness from the ground contact surface (6) on the outsole to the bottom surface of the space is appropriately secured, and then the target weight and shape of the entire shoe are taken into consideration. To any depth. The width of the space in the vertical direction can be small (approximately 1 cm is appropriate) at the ball portion where the bending and elongation change is large, and can be large at other portions where the bending and elongation change is small. Of course, the whole may be a uniform width for convenience in manufacturing. As the lateral width of the space, an outer peripheral portion (2) for bonding or sewing is appropriately secured on the outer peripheral portion of the upper surface of the outsole, and the remainder is used as the lateral width. In the above description, referring to FIG. 1, the space (3) for incorporating the weight member (4) is formed in the shape of a groove separated by the partition (5), but is not necessarily limited to the shape of a groove. For example, as shown in FIG. 5, it is possible to omit the partition part (5) partially or entirely and to make the space a continuous integrated space. Even in the case of an integrated space, the positional stability of a large number of weight members can be improved by taking into account the vertical and horizontal shapes of the outer peripheral edge of the integrated space and the shape of the individual weight members, or by using a partition piece (11). Sustainable integration is possible. As in the case of a large number of holes and grooves, this can be a sufficiently effective means for solving the problems of the present invention. That is, if a large number of weight members (4) can be stably maintained (particularly in the vertical direction) in the space (3), the partition (5) can be omitted or made small. Further, in FIG.
Each groove-shaped space (3) is one space from the left end to the right end in the outer peripheral portion (2) for the sewing for bonding.
A vertical partition may be added to this, and a plurality of separated spaces may be provided in the same row in the horizontal direction. FIG. 7 is referred to as an image. Further, a honeycomb structure pattern in which regular hexagons are densely packed may be used. In these cases, the benefits are diminished, but they are commensurately useful. In addition, the planar shape of a large number of spaces and weight members incorporated therein is as follows.
A trapezoid, a polygon, a circle, etc. can be arbitrarily selected.

[0005]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a first embodiment of the present invention; FIG. 2 is a schematic elevation view of FIG. 1, and a cross-sectional view is a view taken along line A-Λ of FIG. 1. In the example shown in FIG. 2, the thickness of the arch portion is smaller than that in the example shown in FIG. The insole (7), the insole (8), and the upper part (9) are indicated by imaginary lines. I. Securing and Adjusting Weight The thickness dimension (and the depth of the groove-like space) of the weight member (4) piece is appropriately determined in consideration of the target maximum weight. In the example of FIG. 2, the depth of the groove-shaped space (3) is
The depth may be appropriately increased depending on the thickness of each of the outsole (10) in the longitudinal direction, and may be set to an integral multiple of the thickness of the weight member (4). 1 and 2, the vertical width of the weight member (4) is narrow at the ball portion and wide at the heel portion and the arch portion. Of course, in order to increase or decrease the weight within the maximum possible weight, the weight member (4) at any part of the toe, the ball, the arch, and the heel is replaced with a light dummy having the same shape at the manufacturing stage. The weight balance can be changed depending on which part the dummy is incorporated in. Further, in consideration of the above, in FIG. 1, the weight member has a simple shape so as to facilitate manufacture of the individual piece, and the number of types according to the shape is reduced. B. Weight member The left and right edges of the weight member (4) are to be finished normally without burrs. Further, as shown in FIGS. 1, 2, 3, 4, 5, and 6, the longitudinal section and the end face shape of the weight member may be rounded or may be substantially rectangular. Each can be used appropriately. C. Incorporation of the weight member In incorporating the weight member into the hole-shaped space, it is appropriate to use an adhesive (a double-sided adhesive tape is acceptable). It is appropriate that the pressure-sensitive adhesive retains flexibility and elasticity after drying. An adhesive is used between the weight member and the bottom surface of the hole-shaped space, and between the weight members when a plurality of weight members are stacked, and the two are adhered to each other. It is desirable that the upper surface of the sole portion after the incorporation be such that the upper surface of the incorporated weight member and the upper surface of the partition portion (5) form a substantially smooth surface. D. Curved surface formation The material of the ground contact portion of the outsole (10) generally has high abrasion resistance and low elasticity. Then, at the time of kicking while walking, the ball portion of the sole portion needs to bend in the vertical direction according to the change of the sole. At this time, the ground contact surface portion at the lower part of the outsole does not extend much, and conversely, the upper layer part of the outsole (the upper layer region composed of the weight member and the partition part) is compressed and reduced in the vertical direction. That is, by making the upper layer region have a structure that is easily compressed, the upper layer region is easily bent and a curved surface is formed. FIG. 3 shows a vertical cross section of the ball portion of the sole portion. The vertical width of the weight member (4) having a substantially rectangular cross section is slightly smaller than the width of the slot-like space (3), so that the sole portion is formed. Easy to bend. In the case of a weight member having a cross section with rounded front and rear edges, the width may be equal to or slightly smaller than the vertical width of the grooved space. Due to the “roundness”, the area of contact and pressing with the partition is small, and the height of contact is almost half of the height of the partition, so the compression amount is smaller than the compression amount at the upper position of the partition. It can be easily bent in the vertical direction. In the example shown in FIG. 4, both the height and the vertical width of the partition (5) are reduced. The height may be small (low) as long as the vertical displacement of the weight member can be prevented. The width may be small as long as the weight members do not contact each other when the curved surface is formed. The gap (interval) on the upper surface of the adjacent weight member is small, and the unevenness due to the gap is not felt on the foot due to the insole (7) or the insole (8).
In the example shown in FIG. 5, the partition part (5) of the example shown in FIG. 1 is omitted in the toe region and slightly left and right in the other regions. And the example shown in FIG.
A method of assembling the weight member in a case where the partition portion is small or omitted as shown in FIG. 5 is indicated by a main portion as viewed in the direction of arrows BB in FIG. In the example of FIG. 6, a partition piece (11) made of a material having a slight elasticity is additionally provided in a gap between the adjacent weight members, so that a smooth curved surface can be easily formed. Of course, even in the case where the elastic partition piece is not provided, there is a similar effect of forming a curved surface with reference to the description of the example shown in FIG. In addition, not only the partition piece but also the entire upper layer portion of the outsole (10) may be formed of the stretchable material with the thickness of the partition portion shown in FIG. That is, the ground contact surface side of the outsole may be made of a wear-resistant material, the upper layer may be made of the elastic material, and the entire outsole may be made of a two-layer structure. E. Assembling of the upper surface of the sole portion In FIG. 2, the assembling of the upper portion (9), the insole (8), the insole (7) and the like is indicated by imaginary lines. As an insole material, a paper containing a long fiber and having a thickness of about 0.5 to 1 mm,
A strong sheet-like material such as leather or the like is appropriate.
The midsole is assembled integrally with the upper portion and the sole portion by bonding or sewing at the outer peripheral portion (2). Here, when the sole portion of the conventional example shown in FIG. 7 is used, the inconvenience that the inner bottom surface, that is, the midsole becomes uneven, corresponding to the reinforcing portion pattern is solved.
In FIG. 2, between the upper part (9) and the sole part (1), a sheet-like member similar to the above-mentioned midsole (7) may be additionally incorporated. It is. It is desirable that the insole has cushioning properties, and in particular, cushioning in the heel region is important in order to alleviate shock at landing. F. Improvement of durability The weight member is incorporated in the outsole (10), and the upper surface is further adhered to the middle sole (7) and a part of the upper part (9).
Because it is covered, it is stable with no positional deviation. When a rigid weight member is incorporated, the ball of the sole bends easily in the vertical direction following the repeated bending and stretching of the sole during walking operation, and does not bend in the horizontal direction. Increase. In addition to the repeated bending stress, a longitudinal repetitive compressive stress acts on the insole, and this compressive stress is reduced or eliminated by the entire assembly method including the insole and the characteristics of each material. Local impacts, stresses, and the like from the upper surface and the lower surface (ground surface) of the sole portion are dispersed and reduced over a wide area by this structure. Due to the above-described characteristics, the durability of the sole portion as a whole is increased, and the life is extended. The use of lead, which causes plastic deformation, as the weight member is optional, as long as the shape of the weight member is long and bends laterally (plastic deformation). In the case of the short shape in the lateral direction described in the section, it is preferable as a material. Of course, if a laminated structure of lead and a rigid material is used, the same effect as in the case of a rigid material can be obtained.

[0006]

Next, the effects will be listed. 1. With the structure of the present invention, the problem of lack of space in the shoe when using a heavy insole can be solved, and an appropriate target weight can be secured. 2. By the structure of the present invention, the problem of the mismatch between the three-dimensional shape of the inner bottom surface of the shoe and the insole is avoided and eliminated. 3. According to the structure of the present invention, the weight distribution of the heel portion, the arch portion, the ball portion, and the toe portion of the sole portion can be appropriately changed. 4. According to the structure and operation of the present invention, it is possible to form a smooth curved surface (vertical direction) that follows the bending and elongation deformation of the sole of the foot during walking and particularly the ball portion, and it is possible to obtain a sense of stability in the lateral direction. 5. According to the structure of the present invention, the problem that unevenness corresponding to the reinforcing portion pattern of the outsole appears on the bottom surface of the conventional shoe is solved. 6. The structure and operation of the present invention increase the durability against repeated bending and deformation, stress, local impact, and the like, and extend the life of the entire shoe. 7. Furthermore, according to the structure of the present invention, the distance (thickness) from the ground contact surface to the sole of the foot can be made smaller as compared with the case of using a heavy insole, so that the heel having a small lateral width is used. A sense of stability is increased with respect to horizontal swing at the section and arch.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a sole portion of the present invention.

FIG. 2 is an elevational view showing an example of a sole portion and shoes of the present invention, and a partial cross-sectional view taken along the line AA.

FIG. 3A illustrates an example of a change in the incorporation of a weight member into the outsole.
-Main part of the view as seen from the arrow A

FIG. 4A is a view showing an example of a change in incorporation of a weight member into the outsole;
-Main part of the view as seen from the arrow A

FIG. 5 is a perspective view showing a modified example of the sole portion of the present invention.

FIG. 6B is a view showing an example of a change in the incorporation of the weight member into the outsole;
-B arrow view

FIG. 7 is a perspective view showing an example of a conventional outsole (sole portion).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sole part 2 Upper surface outer peripheral part 3 Space 4 Weight member 5 Partition part 6 Grounding surface 7 Insole 8 Insole 9 Upper part 10 Outsole 11 Partition piece 12 Reinforcement part

Claims (1)

[Claims] 1. A hole-shaped space (3) is provided in an inner region of the outsole (10) of the shoe except for an outer peripheral portion (2) of the shoe sole (10), and the space is parallel to a horizontal direction (left-right direction). A shoe having a heavy shoe sole portion by incorporating a weight member (4) such as many elongated plates, blocks, or a kneaded mixture of metal particles and an adhesive.