Supporting frame for gear-shifting shoes

Abstract

The invention relates to the technical field of supporting frames for shiftable shoes, in particular to a supporting frame for shiftable shoes, which comprises a hollow shoe body, a sole shoe tree shell and a heel shoe tree shell, and further comprises a sole expanding and supporting part which is arranged at the front end of the hollow shoe body, extends into the sole shoe tree shell and is used for driving the sole shoe tree shell to expand and support. Compared with the prior art, the supporting frame for the gear-shifting shoe has the advantages that the sole and the heel can be expanded through a set of driving system, under the first gear, the multi-gear driving component is connected with the heel expanding component, and the heel part can be driven to be expanded by rotating the first screw rod; after the second gear is switched, the multi-gear driving component is connected with the sole expanding component, expanding of the sole part is achieved by rotating the second screw, the operation process is simplified through the design, and the expanding accuracy and efficiency are greatly improved.

Description

Technical Field

[0001] This invention relates to the field of shoe support technology for gear shifters, specifically to a shoe support for gear shifters. Background Technology

[0002] Reversible shoe supports, also known as shoe lasts, play a crucial role in ensuring the shape, size, and comfort of shoes. However, traditional reversible shoe supports often have certain design limitations, especially when it comes to multi-directional expansion. Traditional reversible shoe supports often rely on multiple independent structures to separately expand the width of the foot and the length of the forefoot and heel, which not only increases design complexity but also raises production costs.

[0003] More importantly, when using traditional shiftable shoe support frames, operators need to control two independent drive systems to complete the expansion action, which undoubtedly increases the difficulty and complexity of operation, and is very easy to affect the shaping effect of the shoe due to improper operation. Therefore, we propose a shiftable shoe support frame. Summary of the Invention

[0004] One technical problem this application aims to solve is: how to design a drive system integrated with a shiftable shoe support frame that can simultaneously control the expansion of foot width and shoe length; secondly, its structural design should be as simple and lightweight as possible for easy carrying and use; and finally, it should be able to provide a precise and stable expansion effect to ensure the quality and comfort of the shoe.

[0005] To address the aforementioned technical problems, this application provides a reversible shoe support frame, comprising a hollow shoe body, a foot last shell, and a heel last shell, and further comprising:

[0006] A foot expansion component is located at the front end of the hollow shoe body and extends into the foot last shell to drive the foot last shell to expand.

[0007] A heel expansion component is provided at the rear end of the hollow shoe body and extends into the heel last shell to drive the heel last shell to expand.

[0008] A multi-position drive component is also located at the rear end of the hollow shoe body. In the first position, the multi-position drive component is connected to the heel expansion component to drive heel expansion. After switching to the second position, the multi-position drive component is connected to the foot expansion component to drive foot expansion.

[0009] In some embodiments, the foot last shell consists of two half-shells rotatably mounted on the hollow shoe body, the foot expansion member is located between the two half-shells, and the heel last shell is a hollow open shell corresponding to the shape of the heel, with its opening facing the hollow shoe body, and its top is rotatably connected to the hollow shoe body.

[0010] In some embodiments, the foot expansion component includes a wedge-shaped stop block 1 respectively disposed in the semi-shell, and a top rod extending into the foot last shell is slidably disposed in the hollow shoe body. One end of the top rod located in the hollow shoe body can cooperate with a multi-position drive component, and one end of the top rod located in the foot last shell is provided with a wedge-shaped top block 1 that fits the wedge-shaped stop block 1.

[0011] A spring is provided between the two half-shells. When the two half-shells are in contact, the spring is in its normal state. When the wedge-shaped top block pushes the wedge-shaped stop block to drive the two half-shells to expand, the spring is compressed by force.

[0012] In some embodiments, the heel expansion component includes a wedge-shaped stop block II installed in the heel last shell, and a wedge-shaped top block II that fits the wedge-shaped stop block II is also provided in the hollow shoe body. The wedge-shaped top block II can cooperate with a multi-position drive component to drive the wedge-shaped top block II to move in order to expand the heel.

[0013] In some embodiments, the multi-position drive component includes a screw first rotatably mounted inside the hollow shoe body, the screw first threaded through a wedge-shaped top block second, and the screw first is configured to rotate to drive the wedge-shaped top block second to move;

[0014] Furthermore, a second screw rod, concentric with the screw rod, is threaded into the hollow shoe body, and a conical top block is provided at the end of the second screw rod and the top rod that are close to each other, with the wedge-shaped surfaces of the two conical top blocks fitting together.

[0015] A drive rod is also movably installed inside the hollow shoe body. The drive rod has a polygonal rod structure and polygonal buckle grooves are opened on both screw one and screw two. The drive rod is used to engage with screw one and screw two respectively to drive screw one and screw two respectively.

[0016] In some embodiments, the polygonal buckle slots are located at the ends of screw one and screw two that are close to each other. The drive rod is composed of a cylindrical segment and a polygonal segment. The cylindrical segment slides through screw one and extends its end away from screw two to the outside of the hollow shoe body. The polygonal segment is fixed at the end of the cylindrical segment that is close to screw two. Moving the cylindrical segment can switch the polygonal segment in the polygonal buckle slots of screw one and screw two.

[0017] In some embodiments, the end of the drive rod located outside the hollow shoe body is in the shape of a hook.

[0018] The present invention has at least the following beneficial effects:

[0019] Unlike existing technologies, this device achieves foot and heel expansion through a single drive system. In the first gear, the multi-gear drive component connects to the heel expansion component, and rotating screw one drives the heel to expand. When switching to the second gear, the multi-gear drive component connects to the foot expansion component, and rotating screw two expands the foot. This design not only simplifies the operation process but also greatly improves the accuracy and efficiency of the expansion, enabling the device to meet the multi-directional expansion needs of shoes and provide users with a more comfortable and well-fitting shoe wearing experience. Attached Figure Description

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 For the present invention Figure 1 A schematic diagram of the hollow shoe body, the forefoot last shell, and the heel last shell after half-section.

[0022] Figure 3 For the present invention Figure 1 Schematic diagram of the hollow shoe body after half-section;

[0023] Figure 4 For the present invention Figure 2 Another structural diagram;

[0024] Figure 5 This is a schematic diagram of the foot expansion component structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the multi-speed drive component structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the drive rod structure of the present invention.

[0027] In the diagram: 1. Hollow shoe body; 2. Foot last shell; 3. Heel last shell; 4. Foot expansion component; 5. Heel expansion component; 6. Multi-position drive component; 21. Half shell; 41. Wedge block one; 42. Top rod; 43. Wedge top block one; 44. Spring; 51. Wedge block two; 52. Wedge top block two; 61. Screw one; 62. Screw two; 63. Conical top block; 64. Drive rod; 65. Polygonal groove; 641. Cylindrical section; 642. Polygonal section. Detailed Implementation

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1

[0030] Please see Figure 1-7 This invention provides a technical solution: a shiftable shoe support frame, the main structure of which includes a hollow shoe body 1, a foot last shell 2, and a heel last shell 3. The unique feature of this shiftable shoe support frame lies in its carefully designed foot expansion component 4, heel expansion component 5, and a flexible, multi-position drive component 6.

[0031] The foot-expanding component 4 is cleverly positioned at the front end of the hollow shoe body 1, extending deep into the foot last shell 2. This design allows the foot-expanding component 4 to effectively drive the foot last shell 2 to expand and accommodate different foot sizes. The foot last shell 2 consists of two semi-shells 21, which can rotate freely around the hollow shoe body 1. The foot-expanding component 4 is precisely positioned between these two semi-shells 21, and through its expanding action, it allows the two semi-shells 21 to flexibly adjust their angle and position as needed.

[0032] The heel support component 5 is located at the rear end of the hollow shoe body 1 and extends deep into the heel last shell 3. The main function of this component is to expand the heel last shell 3 to ensure comfort and a snug fit in the heel area. The heel last shell 3 is a hollow, open shell that perfectly matches the shape of the heel, with its opening facing the hollow shoe body 1 for easy on and off. Simultaneously, the top of the shell is connected to the hollow shoe body 1 via a sophisticated rotating connection, allowing the heel last shell 3 to rotate freely within a certain range, better adapting to different heel shapes.

[0033] In addition to the two expansion components mentioned above, this shiftable shoe support frame is also equipped with a unique multi-position drive component 6. This component, also located at the rear end of the hollow shoe body 1, is key to achieving expansion of the forefoot and heel. In the first position, the multi-position drive component 6 is tightly connected to the heel expansion component 5, driving heel expansion through a precise transmission mechanism. When switching to forefoot expansion, simply adjusting the position of the multi-position drive component 6 connects it to the forefoot expansion component 4, easily driving forefoot expansion.

[0034] The detailed structure of the foot expansion component 4 showcases remarkable design ingenuity. Wedge-shaped blocks 41 are respectively installed within the two semi-shells 21, playing a crucial guiding and positioning role during the expansion process. Simultaneously, a freely sliding top rod 42 extends freely into the foot last shell 2 within the hollow shoe body 1. The end of the top rod 42 inside the hollow shoe body 1 perfectly engages with the multi-position drive component 6, achieving smooth power transmission. The end inside the foot last shell 2 is fitted with a wedge-shaped top block 43 that matches the wedge-shaped blocks 41. This design allows the top rod 42 to precisely push the wedge-shaped blocks 41 when subjected to driving force, thereby driving the two semi-shells 21 to expand.

[0035] A spring 44 is cleverly placed between the two half-shells 21. When the two half-shells 21 are in contact, the spring 44 is in its normal state and does not deform. However, when the wedge-shaped top block 43 pushes the wedge-shaped stop block 41 to expand the support, the spring 44 is compressed, thus generating a certain rebound force. This design not only ensures the smooth expansion process but also improves the durability and stability of the shiftable shoe support frame to a certain extent.

[0036] The design of the heel expansion component 5 is equally ingenious. It mainly includes a wedge-shaped stop 51 installed inside the heel last shell 3 and a wedge-shaped top block 52 that fits into the wedge-shaped stop 51 and is set inside the hollow shoe body 1. This wedge-shaped top block 52 can work closely with the multi-position drive component 6. Through the precise drive of the multi-position drive component 6, the wedge-shaped top block 52 can move smoothly inside the hollow shoe body 1, thereby achieving flexible heel expansion.

[0037] The multi-position drive component 6, serving as the power core of the entire shiftable shoe support frame, boasts an ingenious design. It primarily consists of a screw 61 rotatably mounted inside the hollow shoe body 1, which threadedly passes through a wedge-shaped top block 52. By rotating the screw 61, the wedge-shaped top block 52 can be precisely moved, thereby achieving precise control of heel expansion. Furthermore, a screw 62, concentric with the screw 61, is also threaded inside the hollow shoe body 1. Both ends of this screw 62 and the top rod 42 have conical top blocks 63, and the wedge-shaped surfaces of the two conical top blocks 63 fit together. This design allows the screw 62 to precisely push the top rod 42 during rotation, thus achieving precise control of foot expansion.

[0038] Another noteworthy feature is the inclusion of a movable drive rod 64 within the hollow shoe body 1. This drive rod 64 employs a polygonal rod structure design, offering exceptional strength and stability. Furthermore, polygonal slots 65 are formed on both screw 1 61 and screw 2 62. Through the precise engagement of the drive rod 64 with screw 1 61 and screw 2 62, flexible actuation of each screw can be achieved. The polygonal slots 65 are located at the adjacent ends of screw 1 61 and screw 2 62, allowing the drive rod 64 to engage with the two screws at different positions, thus enabling various expansion and support actions.

[0039] The drive rod 64 is ingeniously composed of a cylindrical section 641 and a polygonal section 642. The cylindrical section 641 slides through the screw 61 and extends its end away from the screw 62 to the outside of the hollow shoe body 1. The polygonal section 642 is fixed to the end of the cylindrical section 641 near the screw 62. By flexibly moving the cylindrical section 641, the polygonal section 642 can be freely switched between the polygonal slots 65 of the screw 61 and the screw 62, thus achieving flexible switching between forefoot expansion and heel expansion. For ease of operation, the end of the drive rod 64 located outside the hollow shoe body 1 is designed as a hook, allowing users to easily grip and operate this interchangeable shoe support frame.

[0040] Example 2

[0041] In one embodiment, the material for the shiftable shoe support frame is a lightweight alloy, which ensures both the strength of the shiftable shoe support frame and makes the overall structure lighter. For the inner sides of the forefoot last shell 2 and the heel last shell 3, a soft rubber material is used with added anti-slip texture to ensure that the shoe fits snugly to the user's foot after expansion and provides excellent anti-slip performance.

[0042] In addition, to meet the needs of different users, we have designed an adjustable foot expansion component 4. The wedge-shaped top block 43 of this component is detachable, allowing users to choose and replace the appropriate wedge-shaped top block 43 according to their foot width. At the same time, the elasticity of the spring 44 can also be adjusted as needed to ensure the comfort and stability of the expansion.

[0043] In terms of drive mechanism, we have introduced an electric drive system. With a built-in battery and motor, users can automatically extend the foot and heel by simply pressing a button. This design not only simplifies the operation but also improves the efficiency and precision of the extension.

[0044] Example 3

[0045] In another embodiment, we focused on the portability and ease of use of the shiftable shoe support. To this end, we designed a foldable shiftable shoe support. When not in use, the user can fold down the various parts of the shiftable shoe support, greatly reducing its size for easy carrying and storage.

[0046] For the folding mechanism, we adopted a flexible connector and locking design. These connectors and locking devices enable quick and easy folding and unfolding while ensuring structural stability. In addition, the surface of the shiftable shoe support frame is treated with waterproof and stain-resistant materials to ensure its cleanliness and durability during use.

[0047] For the support components, we've incorporated shape memory alloy. This material adapts to the shape and temperature of the user's foot, providing a more snug and comfortable support. Furthermore, shape memory alloy offers excellent elasticity and durability, ensuring the repositionable shoe support maintains its performance over long-term use.

[0048] In terms of drive system, we adopted a combination of manual and electric methods. Users can choose manual operation or electric drive according to their needs. This design not only meets the operating habits of different users, but also provides more choices and convenience.

[0049] In summary, these two embodiments, while maintaining the basic design of the adjustable shoe support, further enhance its comfort, portability, and ease of use through innovations in materials, structure, and actuation methods. Whether you need to adjust your foot width or prioritize portability, you can find a suitable adjustable shoe support solution among these embodiments.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A replaceable shoe support frame, comprising a hollow shoe body (1), a foot last shell (2) and a heel last shell (3), characterized in that: It also includes: The foot expansion component (4) is located at the front end of the hollow shoe body (1) and extends into the foot last shell (2) to drive the foot last shell (2) to expand. The heel expansion component (5) is located at the end of the hollow shoe body (1) and extends into the heel last shell (3) to drive the heel last shell (3) to expand. The multi-gear drive component (6) is also located at the rear end of the hollow shoe body (1). In the first gear, the multi-gear drive component (6) is connected to the heel expansion component (5) to drive the heel expansion. After switching to the second gear, the multi-gear drive component (6) is connected to the foot expansion component (4) to drive the foot expansion.

2. The shiftable shoe support frame according to claim 1, characterized in that: The foot last shell (2) consists of two half-shells (21) rotatably mounted on the hollow shoe body (1). The foot expansion component (4) is located between the two half-shells (21). The heel last shell (3) is a hollow open shell corresponding to the shape of the heel, with its opening facing the hollow shoe body (1), and its top is rotatably connected to the hollow shoe body (1).

3. The shiftable shoe support frame according to claim 2, characterized in that: The foot expansion component (4) includes a wedge-shaped stop (41) respectively disposed in the half shell (21), and a top rod (42) extending into the foot last shell (2) is slidably disposed in the hollow shoe body (1). One end of the top rod (42) located in the hollow shoe body (1) can cooperate with the multi-position drive component (6), and one end of the top rod (42) located in the foot last shell (2) is provided with a wedge-shaped top block (43) that fits the wedge-shaped stop (41); A spring (44) is provided between the two half-shells (21). When the two half-shells (21) are in contact, the spring (44) is in normal state. When the wedge-shaped top block (43) pushes the wedge-shaped stop block (41) to drive the two half-shells (21) to expand, the spring (44) is compressed by force.

4. The shiftable shoe support frame according to claim 3, characterized in that: The heel expansion component (5) includes a wedge-shaped stop block two (51) installed in the heel last shell (3), and a wedge-shaped top block two (52) that fits the wedge-shaped stop block two (51) is also provided in the hollow shoe body (1). The wedge-shaped top block two (52) can cooperate with the multi-position drive component (6) to drive the wedge-shaped top block two (52) to move in order to expand the heel.

5. The shiftable shoe support frame according to claim 4, characterized in that: The multi-gear drive component (6) includes a screw (61) rotatably installed inside the hollow shoe body (1), the screw (61) threaded through the wedge-shaped top block (52), and the screw (61) is configured to rotate to drive the wedge-shaped top block (52) to move; Furthermore, a screw rod two (62) concentric with screw rod one (61) is threadedly installed inside the hollow shoe body (1), and a conical top block (63) is provided at one end of screw rod two (62) and top rod (42) respectively, and the wedge-shaped surfaces of the two conical top blocks (63) fit together. A drive rod (64) is also movably installed inside the hollow shoe body (1). The drive rod (64) is a polygonal rod structure, and polygonal buckle grooves (65) are opened on both the screw one (61) and the screw two (62). The drive rod (64) is used to engage with the screw one (61) and the screw two (62) respectively to drive the screw one (61) and the screw two (62).

6. The shiftable shoe support frame according to claim 5, characterized in that: The polygonal buckle grooves (65) are located at the ends of screw one (61) and screw two (62) respectively. The drive rod (64) is composed of a cylindrical section (641) and a polygonal section (642). The cylindrical section (641) slides through screw one (61) and extends its end away from screw two (62) to the outside of the hollow shoe body (1). The polygonal section (642) is fixed at the end of the cylindrical section (641) close to screw two (62). Moving the cylindrical section (641) can switch the polygonal section (642) within the polygonal buckle grooves (65) of screw one (61) and screw two (62).

7. The shiftable shoe support frame according to claim 6, characterized in that: The drive rod (64) is hook-shaped at one end outside the hollow shoe body (1).

Images