Width-adjustable insole and shoe

Abstract

The utility model discloses a midsole with adjustable width, which comprises a half sole area and a control component, a hollow deformation area is arranged on the half sole area, an adjusting component is arranged in the deformation area, the control component is connected with the adjusting component, and the control component adjusts the width of the deformation area by driving the adjusting component to deform so as to adjust the width of the half sole area. According to the insole with the adjustable width, the deformation area is arranged in the half sole area, the control assembly drives the adjusting assembly arranged in the deformation area, adjustment of the width of the deformation area is achieved, the requirements of people for the shoe width in different use scenes are met, and the foot comfort is improved. In addition, the control assembly is in stepless adjustment, so that the girth of the half sole of the shoe can be adjusted in a stepless mode, the requirement for accurate adjustment of the width of the half sole is met, and the adjustment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of shoes, in particular to a midsole with adjustable width and a shoe containing the midsole with adjustable width. Background Art

[0002] Currently, the size of shoes is fixed after they are manufactured, so shoes must be made in different sizes according to the size of the feet, and some shoes must also be made in different widths according to the shape of the feet to meet the needs of consumers.

[0003] However, in reality, people have different requirements for the wrapping, breathability and other properties brought by the width of shoes when walking, running, sitting still, etc., and the width of the feet also changes before and after exercise, and even at different times of the day. A single size of shoe is difficult to meet the performance requirements and comfort in all environments. Utility Model Content

[0004] The purpose of this utility model is to provide a midsole and shoe with adjustable width, which can adjust the width of the deformation zone in the forefoot area by driving the adjustment component through the control component, so as to meet different performance requirements of people and improve comfort. The specific technical solution is as follows:

[0005] A midsole with adjustable width includes a forefoot area and a control component. The forefoot area is provided with a hollow deformation area, the deformation area is provided with an adjustment component, and the control component is connected to the adjustment component. The control component adjusts the width of the deformation area by driving the adjustment component to deform, thereby adjusting the width of the forefoot area.

[0006] Furthermore, the adjustment component can be adjusted steplessly so that the width of the forefoot area can be smoothly adjusted within a continuous range.

[0007] Furthermore, the deformation area is formed by two end points arranged front and back, and a first side and a second side between the two end points, and the first side and the second side can be deformed in the transverse direction.

[0008] Furthermore, the adjustment component includes a rope, the control component includes a winch, the winch is arranged outside the forefoot area, the rope is cross-connected to the first side and the second side, and both ends of the rope are connected to the winch.

[0009] Furthermore, the forefoot area includes a first area and a second area, the first area is located on the inner side of the first side, and the second area is located on the outer side of the second side. Protective components are provided on the first area and the second area to prevent the rope from cutting the midsole when moving.

[0010] Furthermore, the protective component includes a first mesh and a second mesh, the first mesh is covered on the first area, the second mesh is covered on the second area, and a fixing part is relatively arranged at a position of the first mesh corresponding to the first side and a position of the second mesh corresponding to the second side, and the rope is passed through the fixing part.

[0011] Furthermore, the number of fixing parts on the first side is greater than the number of fixing parts on the second side, and the capstan is arranged on the outside of the forefoot area; or the number of fixing parts on the second side is greater than the number of fixing parts on the first side, and the capstan is arranged on the inside of the forefoot area.

[0012] Furthermore, the fixing portion is a hollow tubular structure, including a first port, a second port, and a webbing between the first port and the second port.

[0013] Furthermore, the adjustment component includes an airbag, which is deformable to change the width of the deformation area.

[0014] Furthermore, it also includes a midfoot area, and the control component includes an air tube and an air pump. The air pump is arranged in the midfoot area, one end of the air tube is connected to the air bag, and the other end is connected to the air pump.

[0015] Furthermore, the control component also includes an air release valve, which is arranged on the air pipe or the air pump.

[0016] Furthermore, the maximum distance between the first side and the second side is the first line segment, the widest line in the forefoot region is the second line segment, and the first line segment and the second line segment overlap.

[0017] Furthermore, the second line segment corresponds to a line connecting the first metatarsophalangeal joint and the fifth metatarsophalangeal joint of the human foot.

[0018] Furthermore, the difference between the maximum distance and the minimum distance between the first side and the second side is an adjustment range, and the adjustment range is ≥7 mm.

[0019] A shoe comprises the above-mentioned midsole with adjustable width.

[0020] Furthermore, it also includes a pull-up cloth, an outsole and a protective component. The pull-up cloth is located above the midsole, the outsole is located below the midsole, the forefoot area of ​​the outsole is provided with an adjustment area, the adjustment area is provided corresponding to the deformation area, the protective component is provided on the inner side and / or outer side of the forefoot area of ​​the midsole, the top surface of the protective component is connected to the pull-up cloth, and the bottom surface of the protective component is connected to the outsole.

[0021] The width-adjustable midsole of the present invention has the following advantages:

[0022] By providing a deformable zone within the forefoot, the control component drives the adjustment component within the deformable zone to adjust the width of the deformable zone, meeting the shoe width requirements in different usage scenarios and improving foot comfort. Furthermore, the control component is steplessly adjustable, allowing for stepless adjustment of the shoe's forefoot circumference, ensuring precise adjustment of the forefoot width and improving adjustment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a first embodiment of the midsole with adjustable width according to the present invention.

[0024] Figure 2 This is a top view of the initial shape of the deformation area of ​​the adjustable width midsole embodiment 1 of the present invention.

[0025] Figure 3 This is a top view of the control component and the adjustment component in Example 1 of the midsole with adjustable width of the present invention.

[0026] Figure 4 This is a schematic diagram of the reduction in width of the deformation area in the first embodiment of the midsole with adjustable width of the present invention.

[0027] Figure 5 This is a schematic diagram of the relationship between the deformation area of ​​the width-adjustable midsole of the present invention and the position of the sole of the foot.

[0028] Figure 6 This is a schematic diagram of the second embodiment of the width-adjustable midsole of the present invention in an uninflated state.

[0029] Figure 7 This is a schematic diagram of an embodiment 1 of the width-adjustable midsole of the present invention in an inflated state. DETAILED DESCRIPTION

[0030] In order to better understand the purpose, structure and function of the present invention, the adjustable width midsole of the present invention is described in detail below with reference to the accompanying drawings.

[0031] like Figures 1 to 7 As shown, the adjustable width midsole includes a forefoot area, a midfoot area and a heel area which are connected in sequence. The side of the midsole close to the inner side of the human foot is defined as the inner side of the sole body, the side of the midsole close to the outer side of the human foot is defined as the outer side of the sole body, the end of the midsole close to the human toe is defined as the front side, and the end of the midsole close to the human heel is defined as the rear side. The distance between the inner side and the outer side is the transverse width, and the direction is the transverse direction. The distance between the front side and the rear side is the longitudinal length, and the direction is the longitudinal direction.

[0032] A hollow deformation area is provided in the forefoot area. The front-to-back length of the deformation area is greater than the inner and outer widths, so as to increase the coverage area of ​​the deformable area on the forefoot area. An adjustment component is provided in the deformation area, and the adjustment component is driven by a control component provided on the forefoot area or the midfoot area. The drive generates a lateral force to change the width of the adjustment area, thereby making the overall width of the forefoot area linearly transitionally adjusted. The forefoot circumference of the sole changes accordingly, increasing or decreasing the space in the forefoot of the human foot, meeting people's different functional requirements for shoes, and adjusting according to changes in the shape and size of the foot to improve wearing comfort.

[0033] Specifically, the midsole is made of a soft foam material that can produce elastic deformation. The initial state of the deformation zone is divided into two types: the widest state, that is, the deformation zone has the largest width when it is not deformed. At this time, the midsole is at its maximum width and the width of the shoe is the largest. The control component drives the adjustment component to steplessly reduce the width of the deformation zone, reducing the forefoot circumference of the shoe to a suitable position, and then locks the control component. The control component can then be unlocked to gradually increase the width of the deformation zone and restore it to its initial state. The second state is the narrowest state, that is, the deformation zone has the smallest width when it is not deformed. At this time, the midsole is at its minimum width and the width of the shoe is the smallest. The control component drives the adjustment component to steplessly increase the width of the deformation zone, increasing the forefoot circumference of the shoe to a suitable position, and then locks the control component. The control component can then be unlocked to gradually reduce the width of the deformation zone and restore it to its initial state. The control component can use a multi-link, rope, airbag, or other structure to drive and control the adjustment component.

[0034] To sum up the above, the adjustable width midsole of the present invention sets a deformation area in the forefoot area, and drives the adjustment component set in the deformation area through the control component to adjust the width of the deformation area. The control component is steplessly adjustable, so that the forefoot circumference of the shoe can be steplessly adjusted, meeting people's needs for shoe width in different usage scenarios and improving foot comfort.

[0035] In order to better understand the purpose, structure and function of the present invention, the adjustable width midsole of the present invention is further described in detail below with reference to the accompanying drawings, taking the specific structure of the adjustable width midsole as an example.

[0036] Example 1 Figures 1 to 5 As shown, the adjustable width midsole includes a forefoot region 10, a midfoot region 20, and a heel region 30 arranged in sequence from front to back. A deformation region 40 is set in the middle position of the forefoot region 10. The deformation region 40 is hollowed out from top to bottom so that the deformation region 40 can be adjusted laterally inwardly and outwardly. The front-to-back longitudinal length of the deformation region 40 is greater than the inner and outer lateral widths. The deformation region 40 is surrounded by two front-to-back endpoints and a first side 41 and a second side 42 between the two endpoints. Figure 2 As shown, the overall shape is spindle-shaped, and the initial shape is the widest state, wherein the first side 41 is located on the inner side of the midsole, and the second side 42 is located on the outer side of the midsole.

[0037] It is understandable that the shape of the deformation area 40 can also be elliptical, willow-leaf-shaped or diamond-shaped, etc., as long as the control component can control the opening and closing with a smaller force, and can form a range of lateral width adjustment of the midsole forefoot area 10, the first side 41 and the second side 42 are deformed in the lateral direction, and avoid changes in dimensions in other directions, such as avoiding an increase in the longitudinal length when closed.

[0038] like Figure 3 As shown, an adjustment component is provided in the deformation area 40. In this embodiment, the adjustment component is a rope 43. The rope 43 is driven by a control component provided outside the forefoot area 10. The rope 43 is cross-arranged, and both ends are connected to the control component. In this embodiment, the control component is a winch 44. The winch 44 is specifically provided on the inner side of the forefoot area 10 and close to the midfoot area 20. Of course, it can also be provided on the outer side of the forefoot area 10 or on the forefoot area 10 close to the toe. As long as the effect of driving and controlling the rope 43 outside the shoe can be achieved, the setting position can be adjusted according to actual needs and the setting direction of the rope 43.

[0039] Specifically, the forefoot region 10 includes a first region and a second region, the first region is located on the inner side of the first side 41, and the second region is located on the outer side of the second side 42. Fixed portions are provided on the first side 41 and the second side 42. The middle point of the rope 43 is located behind the end point of the deformation region 40 close to the front side. The two sides of the rope 43 are alternately connected to the fixed portions on both sides. Finally, the two end points of the rope 43 pass through the second side 42 and are connected to the winch 44 through the rear side of the first region. The winch 44 can use a BOA winch 44 or other winch 44 with a locking function, such as Figure 4 As shown, the winch 44 is used to tighten the pulling rope 43, thereby pulling the first side 41 and the second side 42 closer to each other, so as to reduce the width of the forefoot area 10. When the width of the forefoot area 10 needs to be increased, the winch 44 structure is unlocked, and the elastic properties of the midsole itself are used to gradually restore the deformation area 40 to the initial state with the largest width. When the width is adjusted to a suitable distance, the winch 44 can be locked again, thereby realizing stepless adjustment of the forefoot circumference, meeting the needs of different scenarios and improving comfort.

[0040] Preferably, protective components are also provided on the first and second regions to prevent the rope 43 from cutting the forefoot region 10 of the midsole when moving. In this embodiment, the protective components are mesh fabrics, including a first mesh fabric 45 and a second mesh fabric 46. The first mesh fabric 45 is applied to the first region, and the second mesh fabric 46 is applied to the second region. Fixed portions are provided on the first mesh fabric 45 at a position corresponding to the first edge 41, and on the second mesh fabric 46 at a position corresponding to the second edge 42. The rope 43 is threaded through the fixed portions. The fixed portions are hollow tubular structures, including a first end and a second end, and a webbing between the first and second ends. The first end faces forward, and the second end faces backward.

[0041] The first mesh 45 and the second mesh 46 are fixedly connected to the midsole by gluing or sewing. The webbing of the fixing part is arranged at longitudinal intervals on the mesh corresponding to the first side 41 and the second side 42. The webbing and the mesh can be fixedly connected by sewing or gluing. The rope 43 passes through the first port and the second port of the fixing part, and is then fixed to the winch 44 through the rear side of the first area, thereby preventing the rope 43 from directly contacting and cutting the midsole made of soft foam material.

[0042] In addition, the drawstring is located above the midsole, and the outsole is located below the midsole. The top surface of the mesh can also be bonded to the drawstring on the shoe, thereby connecting it to the upper, and the bottom surface of the mesh can be bonded to the outsole of the sole. At the same time, the position of the outsole relative to the deformation area 40 also needs to be set with an adjustment area. The adjustment area adopts structures such as gaps or folds to cooperate with the deformation area 40 of the midsole for width adjustment.

[0043] Furthermore, a first fixing portion 47, a second fixing portion, and a third fixing portion are sequentially spaced apart from front to back on the second side 42, and a fourth fixing portion and a fifth fixing portion are sequentially spaced apart from front to back on the first side 41. The first fixing portion 47 and the fourth fixing portion are arranged in a corresponding group, and the second fixing portion and the fifth fixing portion are arranged in a corresponding group. The ends of the rope 43 pass through the second ends of the second fixing portion and the third fixing portion, respectively, and point to and connect to the winch 44 located on the inner side of the forefoot region 10. Of course, the number of fixing portions on the first side 41 can be one more than the number of fixing portions on the second side 42, and the winch 44 can be located on the outer side of the forefoot region 10. Those skilled in the art can adjust the number and location of the fixing portions based on the location of the winch 44 and actual conditions, as long as the winch 44 can achieve a stepless adjustment effect on the rope 43.

[0044] like Figure 5As shown, the distance between the first side 41 and the second side 42 is the largest, and the maximum distance is defined as the first line segment. The line connecting the widest part of the forefoot area 10 of the midsole is the second line segment 52. The second line segment 52 corresponds to the line connecting the first metatarsophalangeal joint and the fifth metatarsophalangeal joint of the human foot. The length of the second line segment 52 can affect the wrapping, comfort and other performance of the shoe to the greatest extent. The first line segment and the second line segment 52 are arranged to overlap so that the width adjustment of the deformation area 40 corresponds to the widest part of the midsole, thereby improving the accuracy and efficiency of the adjustment of the circumference of the forefoot of the shoe, improving the fit and comfort of wearing, and the convenience of operation.

[0045] Preferably, the difference between the maximum distance and the minimum distance between the first side 41 and the second side 42 is an adjustment range, and the adjustment range is ≥7 mm, so as to achieve adjustment of a circumference of 2e (e=3.175 mm).

[0046] Example 2 Figure 6 and Figure 7 As shown, the difference from Example 1 is that the initial shape of the deformation area 40 is the narrowest state, and the control component drives the adjustment component to steplessly increase the width of the deformation area 40, so that the forefoot circumference of the shoe is increased to a suitable position and then the control component is locked. Thereafter, the width of the deformation area 40 can be gradually reduced by unlocking the control component, and restored to the initial shape at the minimum.

[0047] Specifically, the adjustment component includes an airbag 61, and the control component includes an air tube 62, an air pump 63, and an air release valve. One end of the air tube 62 is connected to the airbag 61, and the other end is connected to the air pump 63. The air release valve is set on the air tube 62 or the air pump 63. The air pump 63 is set in the midfoot area 20, corresponding to the arch of the foot or other parts that are not under stress. It can be driven by various methods such as manual or electric. When the air pump 63 inflates the airbag 61 through the air tube 62, the airbag 61 expands, stretching the deformation area 40 of the forefoot area 10, thereby achieving the effect of widening the midsole and increasing the forefoot circumference. When the air release valve is opened, the deformation area 40 gradually returns to its initial shape under the elastic compression of the midsole. The air release valve can be closed at any time during the recovery period, thereby achieving stepless adjustment of the forefoot circumference.

[0048] The utility model also provides a shoe, comprising a shoe upper, an outsole, and the above-mentioned midsole with adjustable width, wherein the shoe upper is connected to the top of the midsole, and the outsole is located at the bottom of the midsole.

[0049] The terms “above”, “below” and “within” mentioned above include the number itself; the terms “exceed” and “outside” do not include the number itself.

[0050] The present invention has been further described above with the aid of specific embodiments. However, it should be understood that the specific descriptions herein should not be construed as limiting the essence and scope of the present invention. Any modifications made to the above embodiments by a person skilled in the art after reading this specification are within the scope of protection of the present invention. The various specific technical features described in the above specific embodiments may be combined in any suitable manner unless there is any contradiction. To avoid unnecessary repetition, the present invention will not further describe various possible combinations in the embodiments.

[0051] If the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

Claims

1. A midsole with adjustable width, characterized in that: It includes a forefoot area and a control component. A hollow deformation area is set on the forefoot area. An adjustment component is set in the deformation area. The control component is connected to the adjustment component. The control component adjusts the width of the deformation area by driving the adjustment component to deform, so as to adjust the width of the forefoot area.

2. The width-adjustable midsole according to claim 1, wherein: The adjustment member is infinitely adjustable to allow the width of the forefoot area to be smoothly adjusted within a continuous range.

3. The adjustable width midsole according to claim 2, wherein: The deformation area is formed by two end points set at the front and the back, and a first side and a second side between the two end points. The first side and the second side can be deformed in the transverse direction.

4. The width-adjustable midsole according to claim 3, wherein: The adjustment component includes a rope, the control component includes a winch, the winch is arranged outside the forefoot area, the rope is connected to the first side and the second side in a cross shape, and both ends of the rope are connected to the winch.

5. The width-adjustable midsole according to claim 4, wherein: The forefoot area includes a first area and a second area, the first area is located on the inner side of the first side, and the second area is located on the outer side of the second side. Protection components are provided on the first area and the second area to prevent the rope from cutting the midsole when moving.

6. The width-adjustable midsole according to claim 5, wherein: The protection component includes a first mesh and a second mesh. The first mesh is covered on the first area, and the second mesh is covered on the second area. Fixed parts are relatively arranged at the position of the first mesh corresponding to the first side and the position of the second mesh corresponding to the second side, and the rope is passed through the fixed parts.

7. The width-adjustable midsole according to claim 6, wherein: The number of fixing parts on the first side is greater than that on the second side, and the capstan is arranged on the outside of the forefoot area; or the number of fixing parts on the second side is greater than that on the first side, and the capstan is arranged on the inside of the forefoot area.

8. The width-adjustable midsole according to claim 7, wherein: The fixing portion is a hollow tubular structure, comprising a first port, a second port, and a webbing between the first port and the second port.

9. The width-adjustable midsole according to any one of claims 1 to 3, characterized in that: The adjustment component includes an airbag that is deformable to change the width of the deformation area.

10. The midsole with adjustable width according to claim 9, characterized in that: It also includes a midfoot area, and the control component includes an air tube and an air pump. The air pump is arranged in the midfoot area, one end of the air tube is connected to the air bag, and the other end is connected to the air pump.

11. The width-adjustable midsole according to claim 10, wherein: The control component also includes an air release valve, which is arranged on the air pipe or the air pump.

12. The width-adjustable midsole according to claim 3, wherein: The maximum distance between the first side and the second side is the first line segment, the widest line in the forefoot region is the second line segment, and the first line segment and the second line segment overlap.

13. The width-adjustable midsole according to claim 11, wherein: The second line segment corresponds to the line connecting the first metatarsophalangeal joint and the fifth metatarsophalangeal joint of the human foot.

14. The width-adjustable midsole according to claim 3, wherein: The difference between the maximum distance and the minimum distance between the first side and the second side is an adjustment range, and the adjustment range is ≥7mm.

15. A shoe, characterized in that: The invention comprises the midsole with adjustable width according to any one of claims 1 to 14.

16. The shoe according to claim 15, wherein The shoe further includes a drawstring, an outsole, and a protective component. The drawstring is located above the midsole, the outsole is located below the midsole, an adjustment area is provided in the forefoot area of ​​the outsole, and the adjustment area is provided corresponding to the deformation area. The protective component is provided on the inner side and / or outer side of the forefoot area of ​​the midsole, the top surface of the protective component is connected to the drawstring, and the bottom surface of the protective component is connected to the outsole.

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