Wheel-based automatic locking device and shoes equipped with it

Abstract

This relates to an automatic locking device using wheels and shoes equipped with the same. [Solution] The present invention is characterized by comprising a shoe part including a sole and an upper, a shoelace part positioned across the upper, a tightening part in which multiple shoelace parts are wound up in accordance with the rotation of a wheel, a fixing part that prevents the wheel from rotating in the opposite direction in order to prevent the multiple shoelace parts from unwinding, and a loosening part that allows the wheel to rotate in the opposite direction so that the multiple shoelace parts can be unwound. Accordingly, the present invention provides the effect of enabling easy and quick attachment and detachment of the shoe part without using hands when tightening or loosening the shoelace part of the shoe part, by providing a tightening part in which the shoelace part is wound up at the lower rear end of the shoe part, a fixing part at one end of the tightening part to prevent the shoelace part from unwinding, and a loosening part at the other end that allows the wheel to rotate in the opposite direction so that the shoelace part can be unwound.

Description

Technical Field

[0001] The present invention relates to an automatic locking device using a wheel and shoes provided with the same, and more specifically, to an automatic locking device using a wheel that can pull and tighten a wire of shoes without using hands and shoes provided with the same.

Background Art

[0002] Generally, in various shoes such as sports shoes, military boots, shoes, work boots, etc., the part where the instep touches is cut open, and a wire is bound in a form that crosses the cut part several times.

[0003] Therefore, when the wearer pulls and ties the wire, the distance of the cut part becomes narrower, and the shoes can be tightened to fit the wearer's feet. Conversely, when the tied wire is loosened and the pulled state is released, the feet can be taken out of or put into the shoes.

[0004] However, operations such as pulling and tying the wire not only require actions such as bending the legs and waist, but also require the use of both hands, so there are disadvantages such as being troublesome, inconvenient, and time-consuming.

[0005] In particular, in order to quickly tighten or loosen the shoe wire, a quick binding structure of a shoe string consisting of a single string has been proposed, but there is still a problem that the hands need to be used, so there are problems of bending the legs and waist and using the hands.

[0006] Also, as conventional methods for tightening and releasing shoes, methods such as pulling and tying or loosening a shoe string, or pressing and peeling a Velcro (registered trademark) adhesive member are known.

[0007] However, these methods had problems such as the inconvenience of tightening and loosening the laces, or unsatisfactory fastening in terms of robustness and appearance. On the other hand, while several one-touch shoelace fastening mechanisms have been introduced recently, these also have problems such as incomplete fastening operation or not being fully automated, failing to adequately meet the practical demands for saving time and simplifying daily life.

[0008] [National R&D projects that supported this invention] [Research and Development Project Number] RS-2023-00268013 [Ministry Name] Ministry of Small and Medium Enterprises [Name of the (specialized) organization for issue management] Japan Institute of Technology and Information Promotion [Research project name] Small and medium-sized enterprises technological innovation development (R&D) [Research Project Title] Development of hands-free auto-locking shoes that automatically tighten and loosen shoelaces. [Project Implementation Organization Name] Treksta Inc. [Research Period] July 17, 2023 - July 16, 2027 [Prior art documents] [Patent Documents]

[0009] [Patent Document 1] Korean Registered Utility Model No. 20-1996-0008083 [Patent Document 2] Korean Patent Publication No. 10-1996-0009927 [Patent Document 3] Korean Patent Publication No. 10-1997-0009653 [Overview of the project] [Problems that the invention aims to solve]

[0010] The present invention was devised to solve the aforementioned problems of the conventional invention, and aims to provide an automatic locking device using a wheel and a shoe equipped therewith, which allows for easy and quick attachment and detachment of the shoe without using hands when tightening or loosening the shoelace, by providing a tightening part at the lower rear end of the shoe part to which the shoelace is wound, a fixing part at one end of the tightening part to prevent the shoelace from unwinding, and a loosening part at the other end to allow the wheel to rotate in the opposite direction to unwind the shoelace.

[0011] Another objective of the present invention is to provide an automatic locking device and a shoe equipped therewith, which uses a wheel that reduces the contact area with the ground on the sole, thereby improving elasticity and reducing noise, by having a curvature wheel formed around its outer surface so that the contact area with the ground on the tightening part is narrowed.

[0012] Furthermore, another objective of the present invention is to provide an automatic locking device using a wheel, and a shoe equipped therewith, which improves the elasticity of the wheel and reduces noise and discomfort when the wheel comes into contact with the sole, by having hollow holes spaced at equal intervals around the side surface of the wheel of the fastening part.

[0013] Furthermore, the present invention aims to provide an automatic locking device using a wheel, and a shoe equipped therewith, which reduces or cushions the impact with stairs and sidewalk blocks when the wearer walks, thereby reducing noise and discomfort, and simultaneously improving walking comfort, by forming the material of the wheel of the fastening part from an elastic material or inserting an elastic material into a hollow hole.

[0014] Furthermore, another objective of the present invention is to provide an automatic locking device using a wheel, and a shoe equipped therewith, which increases the frictional force with the bottom surface by forming inwardly curved irregularities at equal intervals around the outer circumferential surface of the wheel of the fastening part, thereby preventing slippage between the wheel and the bottom surface, and simultaneously preventing the wheel from not rotating. [Means for solving the problem]

[0015] The present invention for achieving the above object includes a shoe part including a sole and a vamp, a shoelace part disposed across the vamp, a wheel exposed outside the shoe part, a tightening part in which the plurality of shoelace parts are wound up in response to the rotation of the wheel, a fixing part provided at one end of the tightening part for preventing reverse rotation of the wheel in order to prevent the plurality of shoelace parts from being unwound, and a loosening part provided at the other end of the tightening part for allowing reverse rotation of the wheel so that the plurality of shoelace parts can be unwound, and is characterized by including the same.

[0016] The wheel of the present invention is formed of a curvature wheel in which a curvature is formed around the outer peripheral surface so that the contact surface with the ground is narrower than the wheel thickness. The curvature wheel of the present invention is characterized in that curvatures are formed at both ends of the outer peripheral surface.

[0017] The curvature wheel of the present invention is characterized in that the curvatures formed at both ends of the outer peripheral surface are formed to be the same as or different from each other. The wheel of the present invention is characterized in that hollow holes are formed at equal intervals around the side surface.

[0018] An elastic material is provided in the hollow hole of the present invention. The wheel of the present invention is characterized in that it is formed of an elastic material. The wheel of the present invention is characterized in that irregularities are formed at equal intervals around the outer peripheral surface.

[0019] A first locking groove for fixing the end portion of the shoelace part and a second locking groove for engaging and winding up or unwinding the shoelace part are formed in the rotating shafts protruding from both side surfaces of the wheel of the present invention.

[0020] Further, the present invention is characterized by a shoe provided with an automatic locking device using the wheel described above.

Advantages of the Invention

[0021] As described above, the present invention provides an effect that, by providing a tightening portion at the lower rear end of the shoe part where the shoelace part is wound, providing a fixing portion at one end of the tightening portion to prevent the winding and unwinding of the shoelace part, and providing a loosening portion at the other end that allows reverse rotation of the wheel to wind and unwind the shoelace part, it is possible to easily and quickly put on and take off the shoe part without using hands when tightening or loosening the shoelace part of the shoe part.

[0022] Further, since the wheel of the tightening portion is composed of a curvature wheel having a curvature formed around the outer peripheral surface so that the contact surface with the ground becomes narrow, it is possible to provide an effect of narrowing the contact portion with the ground of the sole to improve elasticity and reduce noise.

[0023] Further, since the hollow holes are spaced at equal intervals around the side surface of the wheel of the tightening portion, it is possible to provide an effect of improving the elastic force of the wheel and reducing the noise and foreign feeling when the wheel contacts the sole.

[0024] Further, by forming the material of the wheel of the tightening portion with an elastic material or inserting an elastic material into the hollow hole, it is possible to provide an effect of reducing or buffering the impact with stairs or sidewalk blocks when the wearer walks, reducing noise and foreign feeling, and at the same time improving the walking feeling.

[0025] Further, since the concave and convex portions curved inward are spaced at equal intervals around the outer peripheral surface of the wheel of the tightening portion, it is possible to provide an effect of increasing the frictional force with the bottom surface to prevent slipping between the wheel and the bottom surface and at the same time preventing the wheel from rotating idly.

Brief Description of the Drawings

[0026] [Figure 1] It is a top view showing a shoe provided with an automatic locking device using a wheel according to an embodiment of the present invention. [Figure 2] It is a configuration diagram showing a shoe provided with an automatic locking device using a wheel according to an embodiment of the present invention. [Figure 3]This is an exploded view showing an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 4] This is a diagram showing a configuration of an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 5] This is a diagram showing the tightening section of an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 6] This is a front view showing the tightening section of an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 7] This is a configuration diagram showing another example of the tightening section of an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 8] This is a diagram showing a modified configuration of the tightening section of an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 9] This diagram shows the winding state of a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 10] This is a diagram showing the loosening state of a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention. [Figure 11] This diagram shows the unwinding state of a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention. [Modes for carrying out the invention]

[0027] A preferred embodiment of the present invention will be described in more detail below with reference to the attached drawings. Figure 1 is a top view showing a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention; Figure 2 is a configuration diagram showing a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention; Figure 3 is an exploded view showing an automatic locking device using a wheel according to one embodiment of the present invention; Figure 4 is a configuration diagram showing an automatic locking device using a wheel according to one embodiment of the present invention; Figure 5 is a configuration diagram showing the tightening part of an automatic locking device using a wheel according to one embodiment of the present invention; Figure 6 is a front view showing the tightening part of an automatic locking device using a wheel according to one embodiment of the present invention; Figure 7 is a configuration diagram showing another example of the tightening part of an automatic locking device using a wheel according to one embodiment of the present invention; Figure 8 is a configuration diagram showing a modified example of the tightening part of an automatic locking device using a wheel according to one embodiment of the present invention; Figure 9 is a state diagram showing the wound state of a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention; Figure 10 is a state diagram showing the loosened state of a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention; and Figure 11 is a state diagram showing the unwound state of a shoe equipped with an automatic locking device using a wheel according to one embodiment of the present invention.

[0028] As shown in Figures 1 to 4, the automatic locking device using a wheel according to this embodiment includes a shoe part 10, a shoelace part 20, a tightening part 30, a fixing part 40, and a loosening part 50, and is an automatic locking device using a wheel that allows the shoe to be tightened by pulling the wire without using hands.

[0029] The shoe portion 10 is a shoe component that includes a sole and an upper, and typically consists of a sole that comes into contact with the sole of the foot, which is used in sports shoes, shoes, or work shoes, and an upper that protects the sides and top of the foot, with an incision formed on the upper part of the upper.

[0030] The shoelace portion 20 is a lace member positioned across the upper leather, and is tied in a zigzag pattern across the cut portion of the upper leather several times. The ends of the shoelace wires are guided to the sides of the shoe portion 10, and guide covers are formed on the sides of the shoe portion 10 to guide the wires inward so that they do not detach from the sides of the shoe portion 10.

[0031] The tightening section 30 is a tightening member that includes a wheel exposed on the outside of the shoe section 10, and in accordance with the rotation of the wheel, multiple shoelace sections 20 are wound up, and consists of a wheel 31, a rotating shaft 32, a bearing 33, and a support piece 34.

[0032] As shown in Figures 5 and 6, the wheel 31 can be made of a curvature wheel in which a curved shape is cut out around the outer surface, resulting in a smaller contact surface with the ground compared to the wheel thickness.

[0033] Such a curvature wheel has a first curvature 31a and a second curvature 31b formed at both ends of the outer surface, and is formed in a curved shape around both ends of the outer surface so that the contact surface with the ground is narrowed.

[0034] Furthermore, the curvature wheel is formed such that the first curvature 31a and the second curvature 31b, which are formed at both ends of the outer surface, are the same or different from each other, allowing it to be applied in various ways depending on the walking habits of the shoe wearer, the shape of their foot, and the inclination of the sole.

[0035] As shown in Figure 7, such a wheel 31 can have hollow holes 31c formed around its sides at equal intervals, and these hollow holes 31c can also be filled with an elastic material 31d such as rubber or silicone to mitigate impacts to the wheel 31.

[0036] Furthermore, the wheel 31 is made entirely of low-noise elastic materials such as rubber or silicone, which reduces or cushions the impact with stairs and sidewalk blocks when the wearer walks, thereby reducing noise and the feeling of unfamiliarity, while also improving the walking experience.

[0037] In particular, as shown in Figure 8, the wheel 31 has multiple inwardly curved protrusions 31e formed around its outer circumference at equal intervals, which increases the frictional force with the bottom surface and prevents slippage between the wheel 31 and the bottom surface.

[0038] The rotating shaft 32 is a shaft member that protrudes from both sides of the wheel 31 and consists of a first locking groove 32a for fixing the end portion of the shoelace portion 20 and a second locking groove 32b for engaging with the shoelace portion 20 to wind or unwind it.

[0039] The bearings 33 are provided at both ends of the rotating shaft 32 and are rotation-maintaining members that maintain the rotation of the wheel 31. They consist of rotation-supporting members such as ball bearings provided between the fixed part 40 and the rotating shaft 32, and rotate-support the wheel 31 of the clamping part 30.

[0040] The support pieces 34 are provided at both ends of the rotating shaft 32 and are winding means that rotate forward or backward together with the wheel 31 to wind up or unwind the shoelace portion 20. The rotation is stopped by the fixing portion 40 or reversed by the loosening portion 50.

[0041] Furthermore, it is preferable that the outer periphery of such a support piece 34 is bent in one direction to allow forward rotation for tightening in the wheel 31 by engaging with the loosening portion 50, but not to allow reverse rotation for loosening.

[0042] The fixing part 40 is provided at one end of the tightening part 30 and is a fixing member that prevents the wheel 31 of the tightening part 30 from rotating in the reverse direction in order to prevent the multiple shoelace parts 20 from unwinding. It consists of a front case 41, a rear case 42, a first guide 43, and a second guide 44.

[0043] The front case 41 is provided at the lower rear end of the shoe portion 10 and is a case member that supports the tightening portion 30 and the loosening portion 50. Inside, the tightening portion 30 is rotatably provided so that it can rotate both forward and backward.

[0044] The rear case 42 is provided so as to protrude from the lower rear end of the shoe portion 10 and is a case member to which the rear of the front case 41 is connected. A loosening portion 50 is rotatably provided at one end, and the reverse rotation of the wheel 31 is stopped or allowed by the engagement and disengagement of the teeth between the loosening portion 50 and the tightening portion 30.

[0045] The first guide 43 is provided at one end of the front case 41 and is a guide member that guides the movement of one of the shoelace portions 20. It consists of a substantially cylindrical guide and guides the movement of one of the shoelace portions 20 inside.

[0046] The second guide 44 is provided at the other end of the front case 41 and is a guide member that guides the movement of the other shoelace portion 20. It consists of a substantially cylindrical guide and guides the movement of the other shoelace portion 20 inside.

[0047] The loosening portion 50 is provided at the other end of the tightening portion 30 and is a loosening member that allows the wheel 31 of the tightening portion 30 to rotate in the reverse direction so that the multiple shoelace portions 20 can be unwound. It selectively releases the fixed connection between the tightening portion 30 and the fixing portion 40 by engagement, and allows the wheel 31 of the tightening portion 30 to rotate in the reverse direction so that the shoelace portions 20 can be unwound.

[0048] One end of the loose portion 50 is formed with a pressure piece that applies pressure to allow the wheel 31 of the tightening portion 30 to rotate in the reverse direction, and on both sides of the other end, locking pieces are formed to allow the wheel 31 of the tightening portion 30 to rotate in the forward direction and prevent reverse rotation.

[0049] Furthermore, the present invention can also be comprised of shoes for various purposes, such as sports shoes, military boots, shoes, and work shoes, equipped with an automatic locking device using the wheels of this embodiment.

[0050] As shown in Figure 9, in shoes equipped with an automatic locking device using wheels, the tightening part 30 located at the rear end of the shoe portion 10 comes into contact with the sole and moves backward, causing it to rotate in the forward direction. This winds the shoelace portion 20 onto the tightening part 30, maintaining the shoelace portion 20 in a tightened state.

[0051] As shown in Figures 10 and 11, the loosening portion 50 provided at the rear end of the shoe portion 10 is moved upward with the toe, releasing the lock between the tightening portion 30 and the loosening portion 50, allowing the tightening portion 30 to rotate in the reverse direction, and the shoelace portion 20 loosens from a tightened state to a loosened state, making it easier for the wearer to put on and take off the shoe portion 10.

[0052] As described above, according to the present invention, a tightening section is provided at the lower rear end of the shoe portion for winding the shoelace, a fixing section is provided at one end of the tightening section to prevent the shoelace from unwinding, and a loosening section is provided at the other end to allow the wheel to rotate in the opposite direction to unwind the shoelace, thereby providing the effect of easily and quickly putting on and taking off the shoe portion without using hands when tightening or loosening the shoelace.

[0053] Furthermore, the tightening wheel is composed of a curvature wheel with a curvature formed around its outer surface so as to narrow the contact area with the ground. This narrows the contact area with the ground at the bottom, improving elasticity and reducing noise.

[0054] Furthermore, the evenly spaced hollow holes around the side of the wheel in the clamping section improve the elasticity of the wheel, providing an effect that reduces noise and discomfort when the wheel comes into contact with the bottom.

[0055] Furthermore, by forming the wheel of the fastening part with an elastic material, or by inserting an elastic material into the hollow hole, the impact with stairs and sidewalk blocks when the wearer walks can be reduced or cushioned, thereby reducing noise and the feeling of unfamiliarity, and improving the walking experience.

[0056] Furthermore, the formation of inwardly curved irregularities at equal intervals around the outer surface of the wheel in the clamping section increases the frictional force with the bottom surface, preventing slippage between the wheel and the bottom surface, while simultaneously preventing the wheel from remaining stationary.

[0057] The present invention as described above can be implemented in various other forms without departing from its technical idea or main features. Accordingly, the above embodiments are merely illustrative in all respects and should not be interpreted restrictively. [Explanation of Symbols]

[0058] 10 Shoes 20 Shoelaces 30 Tightening part 40 Fixed part 50 Loose part

Claims

1. The shoe part, including the sole and upper leather, The shoelace portion is positioned across the upper leather, The shoe portion is equipped with a wheel exposed on the outside, and the tightening portion is such that the multiple shoelace portions are wound up in accordance with the rotation of the wheel, A fixing part is provided at one end of the tightening part to prevent the multiple shoelace parts from unwinding, and to prevent the wheel from rotating in the reverse direction, A loosening portion is provided at the other end of the tightening portion, which allows the wheel to rotate in the reverse direction so that the multiple shoelace portions are unwound, An automatic locking device using a wheel, characterized by including the following:

2. The automatic locking device using the wheel according to claim 1, characterized in that the wheel is formed as a curvature wheel with curvature formed around its outer surface such that the contact surface with the ground is narrower than the wheel thickness.

3. The automatic locking device using the wheel according to claim 2, characterized in that the curvature wheel has curvature formed at both ends of its outer surface.

4. The automatic locking device using the wheel according to claim 2, characterized in that the curvature wheel is formed such that the curvatures formed at both ends of its outer surface are the same or different from each other.

5. The automatic locking device using the wheel according to claim 1, characterized in that the wheel has hollow holes formed at equal intervals around its side surface.

6. The automatic locking device using a wheel according to claim 5, characterized in that an elastic material is provided in the hollow hole.

7. The automatic locking device using the wheel according to claim 1, characterized in that the wheel is formed of an elastic material.

8. The automatic locking device using the wheel according to claim 1, characterized in that the wheel has irregularities formed at equal intervals around its outer surface.

9. The automatic locking device using the wheel according to claim 1, characterized in that a first locking groove for fixing the end portion of the shoelace and a second locking groove for engaging with and winding or unwinding the shoelace are formed on the rotating shafts that protrude from both sides of the wheel.

10. A shoe characterized by being equipped with an automatic locking device using the wheel described in claim 1.

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