Double-layer laminated braking structure of shoe sole

Abstract

The invention relates to a double-layered laminated braking structure of a shoe sole, comprising a shoe sole body, a front part of the shoe sole body being provided with a sliding wheel walking aid mechanism, a step part being formed on the bottom surface of the front part of the shoe sole body, a shoe groove extending upward being formed on the front part of the shoe sole body, further comprising a braking block fixed on the step part, the braking block being located between the sliding wheel walking aid mechanism and the step part, the lower surface of the braking block being lower than the lowest point of the wheel body of the sliding wheel walking aid mechanism. The wheel body front part of the shoe sole body lands first, the braking block lands before the middle and rear part of the shoe sole body lands, the frictional force generated between the braking block and the ground is used to block the whole shoe sole body from sliding forward, since the braking block extends at the position of the step part, when the front part of the shoe sole body slides, the shoe groove position can be bent, when braking is needed during sliding or stepping down, the rear lower surface of the front part of the shoe sole body laminates on the braking block, forming double-layered lamination, so as to further increase the pressure and sliding resistance of the braking block.

Description

Technical Field

[0001] This invention relates to a double-layered, laminated braking structure for shoe soles, belonging to the field of shoe materials. Background Technology

[0002] Cycling shoes combine the functions of walking and gliding. For example, in the Chinese utility model patent application CN206027040U entitled "A Comfortable Cycling Shoe", the applicant proposed a comfortable cycling shoe, which includes a shoe body. The sole of the shoe body has an open cavity, and a pulley assist mechanism is provided in the cavity. The power walking direction of the pulley assist mechanism is perpendicular to the length direction of the shoe body. At least the front sole of the shoe body has a groove, and the pulley assist mechanism is provided near the groove. The bottom surface of the forefoot and the bottom surface of the heel of the shoe corresponding to the pulley assist mechanism form a step.

[0003] The aforementioned cycling shoes also have the following shortcomings in use: For example, when descending stairs, the front wheels of the shoe touch the ground first, followed by the middle and rear of the shoe. The pulley-assisted mechanism slides forward a short distance on the stairs before the middle and rear of the shoe touches the ground, using friction to brake. If the stairs are narrow or the pulley-assisted mechanism's sliding distance is slightly too long, there is a risk of the cycling shoes slipping over the stairs and missing a step. Furthermore, the inverted U-shaped groove in the sole causes friction with the ground when the middle and rear of the sole brakes, compressing the groove. Over time, the groove narrows, leading to sole deformation, which in turn affects the quality and comfort of the shoe. Summary of the Invention

[0004] The purpose of this invention is to provide a simple, self-propelled braking structure for shoes, which can reduce the risk of slipping, especially when descending stairs.

[0005] The double-layered braking structure of the sole includes a sole body, the bottom surface of the front part of the sole body extends upward, a pulley assist mechanism is provided at the front part of the sole body, a stepped part is formed at the connection between the bottom surface of the front part of the sole body and the bottom surface of the middle and rear parts of the sole body, an upwardly extending shoe groove is formed on the bottom surface of the front part of the sole body near the stepped part, and a braking block fixed to the stepped part is also included. The braking block is located between the pulley assist mechanism and the stepped part, and the lower surface of the braking block is lower than the lowest point of the wheel of the pulley assist mechanism.

[0006] In a preferred embodiment of the present invention, the lower surface of the braking block is lower than or equal to the lower surface of the middle and rear portion of the sole body.

[0007] In a preferred embodiment of the present invention, the upper part of the brake block extends to the upper end of the stepped portion, and the lower part of the brake block extends to a position flush with the lower surface of the middle and rear portion of the sole body.

[0008] In a preferred embodiment of the present invention, the two ends of the brake block extend to the left and right sides of the sole body, respectively, and the front end of the brake block extends forward and beyond the front end of the shoe groove.

[0009] As a preferred embodiment of the present invention, the front end of the brake block forms a brake surface that can brake the wheel surface of the pulley-assisted walking mechanism.

[0010] As a preferred embodiment of the present invention, the front part of the sole body is provided with an upwardly extending receiving cavity, and the receiving cavity is provided with a mounting box. The sliding walking aid mechanism includes at least a wheel body mounted on the mounting box, and the wheel body includes at least one unidirectional wheel that can rotate forward in one direction.

[0011] In a preferred embodiment of the invention, the wheel body is three or four.

[0012] In a preferred embodiment of the present invention, there are three wheels arranged in a triangle within the mounting box; or one wheel is located inside the mounting box, and the other two wheels are located outside the mounting box and respectively located on the left and right sides of the sole body; or there are four wheels, all of which are located outside the mounting box, with two wheels arranged front to back on the left side of the sole body and the other two wheels arranged front to back on the right side of the sole body.

[0013] As a preferred embodiment of the present invention, the left and right sides of the sole body are provided with a first brake block and a second brake block corresponding to the wheel surface of the wheel body outside the mounting box.

[0014] In a preferred embodiment of the present invention, the brake block comprises an EVA block and a rubber block laminated on the lower surface of the EVA block.

[0015] In a preferred embodiment of the present invention, the lower surface of the sole body is provided with a plurality of support blocks for absorbing and releasing energy. The support blocks extend in the front-to-back direction at the lower end of the shoe groove to form an extension portion, which crosses the opening end of the shoe groove and forms a movable end.

[0016] In a preferred embodiment of the present invention, a buffer block is provided in the shoe groove, one end of the buffer block is fixedly connected to one side wall of the shoe groove, and the other end of the buffer block extends toward the other side wall of the shoe groove to form a movable end.

[0017] This invention has the following beneficial effects: the front part of the sole lands first, and before the middle and rear parts of the sole land, the braking block lands first (that is, before the middle and rear parts of the sole land, the braking block moves forward and lands first to brake, shortening the sliding braking time of the sole). The friction between the braking block and the ground prevents the entire sole from sliding forward. Because the braking block is located at the step, the front part of the sole can bend at the shoe groove, and the front part of the sole overlaps the braking block first, further increasing the braking pressure of the braking block and generating strong sliding resistance, achieving the effect of preemptive braking. Furthermore, in this invention, the shoe body is a mechanical power system. The braking block extends forward and forms a braking surface at the front end, braking the wheel surface of the pulley assist mechanism. During the middle and rear landing process of the sole, dual braking is achieved through wheel braking and the contact friction between the braking block and the ground, further improving the safety of going down stairs. Furthermore, when the two wheels in the pulley walking mechanism are located on both sides of the sole body, by setting the first brake block and the second brake block on the side of the sole body, when the middle and rear of the sole body touches the ground, the first brake block and the second brake block further brake the wheels, reducing the risk of the sliding walking mechanism sliding too far when shortening the stair steps.

[0018] Furthermore, by setting up a support block that can absorb and release energy, the support block spans across the opening end of the shoe groove, or a buffer block is set in the shoe groove. While ensuring that the sole body can bend in the shoe groove, the support block and the buffer block can prevent the shoe groove from narrowing under pressure, thereby reducing the deformation of the sole body. At the same time, as the walking posture changes, when the pressure-bearing support block or buffer block returns to its original position, it releases energy, which helps to push and propel the foot, giving people a feeling of effortless, agile, flexible and light walking. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of another state of the first embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention;

[0022] Figure 4 This is another state diagram of the second embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the third embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the structure of the fourth embodiment of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the fifth embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the structure of the sixth embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the structure of the seventh embodiment of the present invention.

[0028] Figure 10 This is a schematic diagram of the structure of the eighth embodiment of the present invention.

[0029] Figure 11 This is a schematic diagram of the structure of the ninth embodiment of the present invention.

[0030] Figure 12 This is a schematic diagram of the tenth embodiment of the present invention.

[0031] Figure 13 This is a schematic diagram of the eleventh embodiment of the present invention.

[0032] Figure 14 for Figure 13 Another schematic diagram of the state structure.

[0033] Figure 15 for Figure 13 Another state structure diagram.

[0034] Figure 16 This is a schematic diagram of the twelfth embodiment of the present invention.

[0035] Image type:

[0036] Shoe sole body 10, front part 11

[0037] Mid-rear section 12, shoe groove 13

[0038] Step section 14 First reinforcement section 15

[0039] Second reinforcement section 16, side wall 131

[0040] Brake block 20 Brake surface 21

[0041] EVA block 201, rubber block 202

[0042] Wheel body 30 Mounting box 31

[0043] First brake block 41

[0044] Support block 50 Extension 51

[0045] Buffer block 60 Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0047] Reference Figures 1 to 16 For ease of description, the orientation is described based on the normal placement of the sole. The height of the invention is based on the ground where the sole body 10 is placed, with the straight line m representing the ground reference line. The double-layered, overlapping braking structure of the sole includes the sole body 10. The bottom surface of the front portion 11 of the sole body 10 extends upwards. The front portion 11 of the invention generally refers to the position of the sole body 10 corresponding to the forefoot of the human foot. The front portion 11 of the sole body 10 is provided with a pulley-assisted walking mechanism. A stepped portion 14 is formed at the connection between the bottom surface of the front portion 11 of the sole body 10 and the bottom surface of the middle and rear portion 12 of the sole body 10. The stepped portion 14 extends generally in the vertical direction. An upwardly extending groove 13 is formed on the bottom surface of the front portion 11 of the sole body 10 near the step portion 14. As in the prior art, the groove 13 assists in the bending of the sole body 10. In this invention, multiple grooves 13 are also provided at other locations in the middle and rear portion 12 of the sole body 10. The grooves 13 of this invention extend upward from the lower surface of the sole body 10 and penetrate from the left side to the right side of the sole body 10. This invention also includes a braking block 20 fixed to the step portion 14. The braking block 20 can be fixed using strong adhesive. After the braking block 20 is attached to the step portion 14, it does not affect the normal use of the groove 13. The brake block 20 is located between the pulley assist mechanism and the step portion 14. The lower surface of the brake block 20 is lower than the lowest point of the wheel body 30 of the pulley assist mechanism. In this invention, the brake block 20 is a telescopic and movable automatic clutch mechanical power system. Its setting does not affect the normal use of the pulley assist mechanism. For example, when it is necessary to use the pulley assist mechanism for gliding, the middle and rear part 12 of the sole body 10 is raised and the foot is tiptoed to a certain height. Under the action of inertial potential energy, the pulley assist mechanism can roll forward on the ground to realize the gliding function of the sole body 10.

[0048] As a preferred embodiment of the present invention, the lower surface of the brake block 20 is lower than or equal to the lower surface of the middle and rear portion 12 of the sole body 10, so as to reduce the wear of the brake block 20 during daily walking.

[0049] As a preferred embodiment of the present invention, the upper part of the brake block 20 extends into the shoe groove 13, but does not fill the shoe groove 13 completely, and the lower part of the brake block 20 extends to a position flush with the lower surface of the middle and rear part 12 of the sole body 10. With this structure, the contact area between the brake block 20 and the step part 14 can be increased, thereby making the brake block 20 more firmly installed on the step part 14.

[0050] In a preferred embodiment of the present invention, the two ends of the braking block 20 extend to the left and right sides of the sole body 10, respectively. The front end of the braking block 20 extends forward and beyond the lower end of the shoe groove 13, that is, the braking block 20 crosses the lower end of the shoe groove 13 and extends to the lower surface of the front part 11 of the sole body 10. In this invention, the braking block 20 may have a gap with the lower surface of the sole body 10, or it may rest against the lower surface of the sole body 10, but the braking block 20 is not fixed to the lower surface of the front part 11 of the sole body 10. By using this mechanism, by increasing the extension length of the braking block 20 in the left and right directions, the area fixed to the step part 14 can be increased, enhancing the fixing effect. It can also increase the contact area between the braking block 20 and the ground, enhancing the braking effect. At the same time, a part of the braking block 20 is located on the lower surface of the front part 11 of the sole body 10, and the lower surface of the front part 11 of the sole body 10 can apply pressure to the braking block 20, enhancing the braking effect.

[0051] Reference Figure 4 In a preferred embodiment of the present invention, the front end of the brake block 20 forms a brake surface 21 that can press against the wheel surface of the wheel body 30 of the pulley assist mechanism for braking. That is, the brake block 20 extends closer to the wheel body 30 of the pulley assist mechanism. Without affecting the normal use of the wheel body 30, the middle and rear part 12 of the sole body 10 and the mounting box 31 are pressed downwards at a certain angle, and the brake surface 21 of the brake block 20 contacts the wheel body 30 to restrict the wheel body 30 from rolling forward, thus achieving a braking effect. In this embodiment, the brake block 20 extends forward beyond the shoe groove 13, enabling the switching between the engaged and disengaged states with the wheel body 30. We call the brake block 20 a telescopically movable clutch-overtake brake block. Figure 4 The brake block 20 and the wheel 30 are in an "engaged" state. The brake block 20 brakes the wheel, while the lower surface of the front part of the sole 10 presses against the brake block 20. The brake block 20 presses against the ground, preventing the sole 10 from sliding forward, thus achieving dual braking. Figure 2 In the "separated" state, the brake block 20 is separated from the lower surface of the front part 11 of the sole body. When in the "separated" state, the sole body 10 is in a gliding or walking state.

[0052] Reference Figure 8 When the wheel 30 of the pulley-assisted walking mechanism is located outside the sole body 10, the brake block 20 extends to the left and right sides on both sides, forming a brake surface 21 that cooperates with the wheel 30. At this time, in order to increase the support for the brake block 20, a first reinforcing part 15 and a second reinforcing part 16 are provided on the sole body 10.

[0053] In a preferred embodiment of the present invention, the front part 11 of the sole body 10 is provided with an upwardly extending receiving cavity, and a mounting box 31 is provided in the receiving cavity. The mounting box 31 is made of a relatively hard, impact-resistant, tough, and wear-resistant material such as PA66, and the sole body 10 is made of a material commonly used in shoe soles on the market, such as EVA. The sliding walking mechanism includes at least a wheel 30 mounted on the mounting box 31. The wheel 30 includes at least one unidirectional wheel that can rotate forward in one direction, so that the wheel 20 can only roll forward and cannot roll backward. The shoe body achieves automatic braking in both directions. The pulley walking mechanism adopts the structure of the prior art, which will not be described in detail here.

[0054] In a preferred embodiment of the present invention, there are three or four wheels 30. In one embodiment, all three wheels 30 are installed in the mounting box 31, and the three wheels 30 are arranged in a triangular pattern.

[0055] Reference Figure 5 In another preferred embodiment of the present invention, there are three wheels 30, one of which is located inside the mounting box 31, and the other two wheels are located outside the mounting box 31 and are respectively disposed on the left and right sides of the sole body 10. The three wheels 30 are arranged in a triangular pattern.

[0056] Reference Figure 9 In another embodiment of the present invention, there are four wheels 30. All four wheels 30 are located outside the mounting box 31. Two wheels 30 are arranged in a front-to-back pattern on the left side of the sole body 10, and the other two wheels 30 are arranged in a front-to-back pattern on the right side of the sole body 10.

[0057] In a preferred embodiment of the present invention, the left and right sides of the sole body 10 are provided with a first brake block 41 and a second brake block corresponding to the wheel surface of the wheel body 30 outside the mounting box 31. Without affecting the normal use of the pulley assist mechanism, when the middle and rear part 12 of the sole body 10 and the mounting box 31 are pressed down at a certain angle, the first brake block 41 and the second brake block respectively abut against a wheel body 30, thereby preventing the wheel body 30 from rolling forward. The first brake block 41 and the second brake block can be integrally formed with the sole body 10 or can be set separately.

[0058] In a preferred embodiment of the present invention, the brake block 20 includes an EVA block 201 and a rubber block 202 bonded to the lower surface of the EVA block 201. The two are fixed together by adhesive bonding. The EVA block 201 ensures the elasticity of the brake block 20, while the rubber block 202 improves the wear resistance of the brake block 20. Of course, the present invention can also use other materials commonly used in shoe soles to replace EVA and the rubber block, such as TPU or PU to replace EVA, or cast polyurethane elastomer (CPU) to replace rubber.

[0059] The present invention adds a braking block 20 to the existing cycling shoes. In some embodiments, a first braking block 41 and a second braking block are also added. The shape and size of the braking block 20, the first braking block 41 and the second braking block are set so as not to affect the dual function of walking and gliding of the cycling shoes, nor to affect the normal function of the shoe groove 13.

[0060] The present invention further improves the sole body, and the improved structure can be used in all the above embodiments. (See reference...) Figures 10 to 12 The lower surface of the sole body 10 is reinforced with multiple support blocks 50. The support blocks 50 are flat and can be made of materials with a certain degree of hardness and wear resistance, such as rubber. The support blocks 50 can be separate from or integrally formed with the rubber blocks 202. The support blocks 50 extend from the lower end of the shoe groove 13 in a front-to-back direction to form an extension 51 (the extension 51 can absorb and release energy). The extension 51 spans across the opening of the shoe groove 13. The extension 51 can abut against the side wall 131 of the shoe groove 13 or not. When the shoe groove 13 deforms to a certain extent, the support blocks 50 abut against the side wall 131 of the shoe groove 13, thereby further limiting the deformation of the shoe groove 13 and ensuring its stability. Figure 10 In this embodiment, the extension 51 abuts against the side wall 131 of the shoe groove 13, but is not fixed to the side wall 131 of the shoe groove 13, to ensure that the sole body can bend normally at the shoe groove 13. In this embodiment, the height of the upper surface of the extension 51 (with the sole body flat on the ground as a reference) is higher than the height of other positions of the support block 50, thereby allowing the extension 51 to better abut against the side wall 131 of the shoe groove 13. (See reference...) Figure 11 Furthermore, the lower surface of the extension 51 abuts against the upper surface of the adjacent support block 50, thereby supporting the extension 51 through the adjacent support block 50 and preventing the extension 51 from disengaging downward.

[0061] Reference Figure 12 In a preferred embodiment of the present invention, a buffer block 60 is provided in the shoe groove 13. One end of the buffer block 60 is fixedly connected to one side wall 131 of the shoe groove 13, for example, by being glued to the side wall 131 of the shoe groove 13 with strong adhesive. The other end of the buffer block 60 extends toward the other side wall 131 of the shoe groove 13 and forms a movable end, that is, this end is not fixed to the side wall 131 of the shoe groove 13. The buffer block 60 can be made of EVA material with a certain degree of hardness, for example. With this structure, the sole body 10 can bend normally at the shoe groove 13 position, while the buffer block 60 can limit the compression deformation of the shoe groove 13. With this structure, the weight of the sole body 10 can be reduced compared to using the support block 50.

[0062] Reference Figures 13 to 15 , Figure 13 The diagram illustrates the structure of the mid-rear portion of the sole body 10 in different raised states. In another embodiment of the invention, the rear side of the brake block 20 is fixed to the step portion 14, and the upper end of the brake block 20 is flat, meaning the upper part of the brake block 20 extends to the upper end of the step portion 14 and is positioned below the shoe groove 13, i.e., not embedded in the shoe groove 13. Simultaneously, a portion of the brake block 20 is located on the lower surface of the front portion 11 of the sole body 10, achieving a surface-to-surface fit during braking. This structure can be used for the brake block in all the above embodiments. The aforementioned support block 50 concept can also be used in this embodiment. The rubber block 202 on the lower surface of the brake block 20 and one of the aforementioned support blocks 50 are integrated and uniformly represented by icon 202.

[0063] Reference Figure 16 In another embodiment of the present invention, the rubber block 202 extends to the front end of the brake block 20. When braking is required, the rubber block 202 can press against the wheel surface of the wheel body 30 to further brake the wheel body 30.

[0064] The embodiments described in this invention are merely some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

Claims

1. A double-layered, overlapping braking structure for a shoe sole, comprising a sole body, the bottom surface of the front portion of the sole body extending upwards, a pulley-assisted walking mechanism provided at the front portion of the sole body, a stepped portion formed at the connection between the bottom surface of the front portion of the sole body and the bottom surface of the middle and rear portions of the sole body, and an upwardly extending groove formed on the bottom surface of the front portion of the sole body near the stepped portion, characterized in that: It also includes a brake block fixed to the step portion, the brake block being located between the pulley assist mechanism and the step portion, and the lower surface of the brake block being lower than the lowest point of the wheel body of the pulley assist mechanism.

2. The double-layered overlapping braking structure of the shoe sole as described in claim 1, characterized in that... The lower surface of the brake block is lower than or equal to the lower surface of the middle and rear part of the sole body.

3. The double-layered overlapping braking structure of the shoe sole as described in claim 1, characterized in that... The upper part of the brake block extends to the upper end of the stepped portion, and the lower part of the brake block extends to a position flush with the lower surface of the middle and rear portion of the sole body.

4. The double-layered overlapping braking structure of the shoe sole as described in claim 1, characterized in that... The two ends of the brake block extend to the left and right sides of the sole body, respectively, and the front end of the brake block extends forward and beyond the front end of the shoe groove.

5. The double-layered overlapping braking structure of the shoe sole as described in claim 4, characterized in that... The front end of the brake block forms a brake surface that can press against the wheel surface of the pulley-assisted walking mechanism for braking.

6. The double-layered overlapping braking structure of the shoe sole as described in claim 5, characterized in that... The front part of the sole body is provided with an upwardly extending receiving cavity, and the receiving cavity is provided with a mounting box. The sliding walking aid mechanism includes at least a wheel body mounted on the mounting box, and the wheel body includes at least one unidirectional wheel that can rotate forward in one direction.

7. The double-layered overlapping braking structure of the shoe sole as described in claim 6, characterized in that... The wheel body consists of three parts, arranged in a triangle within the mounting box; or one wheel body is located inside the mounting box, while the other two wheels are located outside the mounting box and positioned on the left and right sides of the sole body; or four wheels are located outside the mounting box, with two wheels arranged front to back on the left side of the sole body and the other two wheels arranged front to back on the right side of the sole body.

8. The double-layered overlapping braking structure of the shoe sole as described in claim 7, characterized in that... The left and right sides of the sole body are provided with a first brake block and a second brake block corresponding to the wheel surface of the wheel body outside the mounting box.

9. The double-layered overlapping braking structure of the shoe sole as described in claim 1, characterized in that... The lower surface of the sole body is reinforced with multiple support blocks. The support blocks extend in the front-to-back direction at the lower end of the shoe groove to form an extension, which crosses the opening end of the shoe groove.

10. The double-layered overlapping braking structure of the shoe sole as described in claim 1, characterized in that... The shoe groove is provided with a buffer block. One end of the buffer block is fixedly connected to one side wall of the shoe groove, and the other end of the buffer block extends toward the other side wall of the shoe groove to form a movable end.

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