Arch shank device for shoe

Abstract

The present invention provides an arch shank device for a shoe, which is installed at the arch of a shoe and comprises: an upper cover having curved guide recesses formed in both sides along the lengthwise direction of the shoe; a lower cover which is coupled to the lower portion of the upper cover, has guide protrusions formed and coupled therein so as to be rotatable by a certain angle along the curved guide recesses, and of which the protrusion height on the basis of the bottom surface of the shoe is variable according to the rotation angle; and a fixing switch which is coupled to the upper cover from the lower cover through the side surface of the lower cover so as to maintain the rotating angle of the lower cover.

Description

Arch shank device for shoes

[0001] The present invention relates to a shoe arch shank device that is coupled to the arch shank portion of a shoe to absorb impact load transmitted from the ground, and that can be adjusted to fit the user's foot by varying the protruding height according to the rotation angle.

[0002] There is a growing demand for shoes that move beyond simple wear and incorporate functional features like cushioning to aid walking or adapt to the foot's condition. In other words, many functional shoes are being developed to assist walking or absorb the shock load transmitted from the ground to the body.

[0003] Among the prior art technologies related to these functions, the applicant of the present invention, Korean Patent No. 10-1945727, “Shock absorbing device for shoes,” provides a cushioning function particularly to the heel portion.

[0004] Traditionally, shock absorbers in shoes were replaceable, but they were limited to the heel, so there is a need for a shock absorbing part in the arch of the shoe as well.

[0005] Additionally, there is the problem that the functional device that can absorb shocks requires replacement of the entire part when it wears out, which means it is expensive to replace.

[0006] In order to solve the above problem, the present invention aims to provide an arch shank device for a shoe that can be applied to the arch shank according to the user's condition and the height of that part can be adjusted so that it can be adjusted to the user's usage environment.

[0007] In order to solve the above problem, the present invention provides an arch shank device for a shoe, characterized in that it includes: an upper cover installed on the arch of a shoe and having curved guide grooves formed on both sides along the length of the shoe; a lower cover coupled to the lower part of the upper cover and having a guide protrusion formed on the inside so as to be rotatable at a certain angle along the curved guide grooves, the height of which protrudes from the sole of the shoe depending on the rotation angle; and a fixed switch coupled to the upper cover from the side of the lower cover to maintain the rotation angle of the lower cover.

[0008] The lower cover is characterized in that an auxiliary guide groove is formed on the outside, and an outer guide portion is provided that is coupled to the side of the upper cover and a guide protrusion is formed along the lower cover auxiliary guide groove to guide the lower cover from the outside and close the gap between the upper cover and the lower cover.

[0009] The upper cover is formed with a curved plate portion having an upward curve according to the shank of the shoe, and a box-shaped box portion protruding below the curved plate portion, and a number of side holes are formed along a certain angle in the box portion.

[0010] The lower cover is combined in a form that wraps around the box portion of the upper cover, and is composed of a bottom portion and a double-sided wing portion having the guide protrusions formed on both sides of the box portion on the upper side of the bottom portion and coupled to the curved guide grooves, and a hole of a size corresponding to the upper side hole is formed in the double-sided wing portion, and the fixed switch is characterized in that it is composed of a bolt and a nut that are coupled to one of the side holes in the hole to maintain an angle.

[0011] The above-mentioned two-sided wing portion is characterized in that the guide protrusion is formed and the block that is joined inward is divided.

[0012] The upper cover is formed with a curved plate portion having an upward curve according to the shank of the shoe, and a box-shaped box portion protruding below the curved plate portion, and a side hole is formed in the box portion.

[0013] The lower cover is combined in a form that wraps around the box portion of the upper cover, and is composed of a bottom portion, and a double-sided wing portion having the guide protrusions formed on both sides of the box portion on the upper side of the bottom portion and coupled to the curved guide grooves, and the double-sided wing portion is characterized in that a large, curved slot that accommodates the side hole according to the rotation angle is formed, and a partition wall is formed on the inside, and the fixed switch is coupled to the hole and is coupled between the partition walls partitioned on the inside of the slot by spring elasticity to maintain the angle.

[0014] The above-mentioned two-sided wing portion is characterized in that the guide protrusion is formed and the block that is joined inward is divided.

[0015] The lower part of the above lower cover is characterized in that an elastic pad is combined.

[0016] The following effects can be expected by the above solution.

[0017] First, the arch shank device mounted on the shoe of the present invention can be easily adjusted in angle, so that the user can adjust it to suit the condition of his or her feet.

[0018] In addition, since the lower part of the arch shank device is easily replaceable, if the lower part comes into contact or needs to be replaced, the lower cover can be separated from the upper cover and only the elastic pad of the lower cover can be replaced for use.

[0019] Fig. 1 is a diagram showing the installation state of an arch shank device mounted on a shoe according to the first embodiment of the present invention.

[0020] Fig. 2 is an exploded view of an arch shank device of a shoe according to a first embodiment of the present invention.

[0021] Figure 3 is an operating state diagram of an arch shank device mounted on a shoe according to the first embodiment of the present invention.

[0022] Figure 4 is a diagram showing the lower cover of the arch shank device of a shoe according to the first embodiment of the present invention in a separated state.

[0023] Fig. 5 is a diagram showing the installation state of an arch shank device mounted on a shoe according to a second embodiment of the present invention.

[0024] Fig. 6 is an exploded view of an arch shank device of a shoe according to a second embodiment of the present invention.

[0025] Fig. 7 is an exploded view of the arch shank device of a shoe according to the second embodiment of the present invention from another angle.

[0026] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. The following description and the accompanying drawings are provided to facilitate a general understanding of the present invention and are not intended to limit the technical scope of the present invention. Furthermore, detailed descriptions of well-known components and functions that may unnecessarily obscure the gist of the present invention will be omitted.

[0027] FIG. 1 is an installation state diagram of an arch shank device of a shoe mounted on a shoe according to a first embodiment of the present invention, FIG. 2 is an exploded view of an arch shank device of a shoe according to a first embodiment of the present invention, FIG. 3 is an operation state diagram of an arch shank device of a shoe mounted on a shoe according to a first embodiment of the present invention, and FIG. 4 is a exploded view of a lower cover of an arch shank device of a shoe according to a first embodiment of the present invention.

[0028] Referring to FIG. 1, an arch shank device (20) is installed in the arch portion of a shoe (10) and configured to allow the arch shank device (20) to rotate at a certain angle in the direction of the front and rear portions of the shoe.

[0029] Referring to FIGS. 2 to 4, the arch shank device of the shoe of the present invention is largely composed of an upper cover (100), a lower cover (200), and a fixing switch (300), and is mounted on the shoe so that it can be used for the user's convenience by adjusting the angle.

[0030] First, the upper cover (100) is positioned at the top of the device of the present invention and is fixed to the lower arch shank of the shoe.

[0031] The upper cover (100) is formed with an arch-shaped curved plate portion (120) having an upward curve in the center from a horizontal plate in the front and back according to the shank of the shoe, and a box portion (140) protruding downward from the center of the curved plate portion (120).

[0032] Here, a side hole (141) is formed in the box portion (140) to which the bolt (310) of the fixed switch (300) is coupled, and a curved guide groove (142) is formed on the upper portion of both sides of the box portion (140). By forming the curved guide groove (142), the lower cover (200) can move along the curved guide groove (142) and rotate at a certain angle.

[0033] The above lower cover (200) is a part that is connected to the above upper cover (100) and has an angle that can be adjusted.

[0034] The lower cover (200) is formed in a form in which the upper part is open and is combined in a form that wraps around the box part (140) of the upper cover (100), and is composed of a bottom part (220) and a double-sided wing part (240) formed with the guide protrusions (252) that are formed on both sides of the box part (140) on the upper side of the bottom part (220) and are combined with the curved guide grooves (142), and the fixed switch (300) is combined toward the double-sided wing part (240).

[0035] The above lower cover (200) can be rotated at a certain angle along the curved guide groove (142) at the bottom of the above upper cover (100), so that the height of the protrusion relative to the sole of the shoe changes depending on the rotation angle.

[0036] The above fixed switch (300) is a part that can fix the lower cover (200) that rotates at a certain angle to the upper cover (100).

[0037] The above fixed switch (300) is connected to the upper cover (100) by penetrating the side of the lower cover (200) to maintain the rotation angle of the lower cover (200).

[0038] In detail, the box-shaped box portion (140) of the upper cover (100) has a number of side holes (141) formed along a certain angle, and in the present invention, three holes are formed.

[0039] A hole (241) having a size corresponding to the side hole (141) is formed in the above-mentioned side wing portions (240) of the above-mentioned lower cover (200).

[0040] Here, the fixed switch (300) is composed of a bolt (310) and a nut (330) that are combined with one of the side holes (141) in the hole (241) to maintain the angle of the lower cover (200).

[0041] Figure 3 is an operating state diagram of an arch shank device mounted on a shoe according to an embodiment of the present invention.

[0042] As shown in Fig. 3, Fig. 3(a) shows that the arch shank device (20) installed on the shoe (10) is rotated to the right of the lower cover to the maximum, so that the height (h) protruding from the bottom surface of the shoe is the maximum, and Fig. 3(b) shows that the rotation angle is smaller than Fig. 3(a), so that the protruding height (h) is relatively smaller. And in Fig. 3(c), the arch shank device (20) is in a non-rotating state so that the arch shank device (20) is aligned with the bottom surface of the shoe (10).

[0043] Referring to Fig. 4, the upper cover (100) and the lower cover (200) are separated and coupled to each other.

[0044] First, vertical grooves (144, 146) are formed on both sides of the box portion (140) of the upper cover (100), and guide protrusions (252) formed on both wing portions (240) of the lower cover (200) are vertically inserted into these grooves, and the guide protrusions (252) can be moved along the curved guide groove (142) to adjust the angle.

[0045] Additionally, an outer guide part (400) is provided between the upper cover (100) and the lower cover (200).

[0046] First, the lower cover (200) is formed with an auxiliary guide groove (260) on the outside, and the outer guide portion (400) is coupled to the side of the upper cover (100) and has a guide protrusion (420) formed along the auxiliary guide groove (260) of the lower cover (200) to guide the lower cover (200) from the outside and close the joint gap between the upper cover (100) and the lower cover (200), thereby preventing a gap between the upper cover (100) and the lower cover (200) from widening or foreign substances from getting caught between them.

[0047] In addition, the outer guide part (400) has a fitting hole (440) formed on the inside, and the upper cover (100) has a fitting hole (160) formed so that they can be fixed by being joined using a rivet method.

[0048] The above-described double-sided wing portion (240) is characterized in that the guide protrusion (252) is formed and the block (250) that is coupled inward is divided. The reason why the block (250) is coupled and separated in the double-sided wing portion (240) is because the guide protrusion (252) of the block (250) protrudes inward, making it difficult to produce the lower cover (200) with a single mold. Therefore, the double-sided wing portion (240) is provided with a mutually connecting portion (254) and a protruding portion (262) so that the block (250) can be inserted and coupled, and the block (250) is structured to be vertically inserted upward and coupled. In addition, a hole (241) is formed to firmly couple the block (250), and this also matches the hole (241) of the double-sided wing portion (240).

[0049] And, if the elastic pad (500) is worn out, only the lower cover (200) can be separated and replaced.

[0050] Accordingly, the present invention has the advantage of being able to easily adjust and use it according to the user's foot condition by allowing the lower cover (200) to be coupled or separated from the upper cover (100) in the arch shank device, and the angle to be adjusted by rotation when coupled, thereby making the height of the protrusion in the shank portion variable, and also reducing the cost of replacement by easily replacing the part that touches the ground.

[0051] FIG. 5 is an installation state diagram of an arch shank device of a shoe mounted on a shoe according to a second embodiment of the present invention, FIG. 6 is an exploded view of an arch shank device of a shoe according to a second embodiment of the present invention, and FIG. 7 is an exploded view of an arch shank device of a shoe according to a second embodiment of the present invention viewed from another angle.

[0052] Referring to FIGS. 5, 6, and 7, an arch shank device (20) is installed in the arch portion of a shoe (10) and configured to allow the arch shank device (20) to rotate at a certain angle in the direction of the front and rear portions of the shoe.

[0053] The arch shank device of the shoe of the present invention is similar in configuration to the example of the invention described above in that it largely includes an upper cover (100), a lower cover (200), and a fixed switch (300), and thus the operating principle is the same, but there are differences in some shapes.

[0054] The upper cover (100) is formed with a curved plate portion (120) having a central upward curve from a horizontal plate in the front and back according to the shank of the shoe, and a box portion (140) protruding downward from the center of the curved plate portion (120). A side hole (147) into which the fixed switch (300) is coupled is formed in the box portion (140), and curved guide grooves (142) are formed on the upper portions of both sides of the box portion (140).

[0055] The lower cover (200) is a part that is coupled to the upper cover (100) and is angle-adjustable. The lower cover (200) is formed in a form in which the upper part is open and is coupled in a form that surrounds the box part (140) of the upper cover (100), and is composed of a bottom part (220) and double-sided wing parts (240) on which guide protrusions (252) are formed that are in close contact with both sides of the box part (140) on the upper side of the bottom part (220) and are coupled to the curved guide grooves (142), and the fixed switch (300) is coupled to the side of the double-sided wing parts (240).

[0056] The guide piece (252) of the lower cover (200) is coupled to the curved guide groove (142) of the upper cover (100) and rotates so that the height of protrusion relative to the bottom surface of the shoe is variable.

[0057] The above fixed switch (300) is a pin that is coupled to a spring in the upper cover (100). When the pin is pressed, it does not interfere with the lower cover (200), so that the lower cover (200) rotates, and when an external force is removed from the pin, it protrudes toward the lower cover (200) and is fixed.

[0058] In detail, a side hole (147) is formed in the box portion (140) of the upper cover (100), and a large curved slot (255) that accommodates the side hole (147) according to the rotation angle is formed in the two-sided wing portions (240) of the lower cover (200), and a partition wall is formed around the slot (255) on the inside.

[0059] The above fixed switch (300) is characterized in that it is coupled to the side hole (147) and maintains an angle by being pressed between the partition walls (256) partitioned on the inside of the slot (255) by spring elasticity. In the present invention, the fixed switch (300) is positioned in three partition sections by the partition walls (256) so that the rotational angle of the lower cover (200) is determined, and the partition sections are implemented with three sections.

[0060] The upper cover (100) and the lower cover (200) are separated and coupled to each other. First, vertical grooves (144, 146) are formed on both sides of the box portion (140) of the upper cover (100), and guide protrusions (252) formed on both wing portions of the lower cover (200) are vertically inserted into these grooves, and the guide protrusions (252) can be moved along the curved guide groove (142) to adjust the angle.

[0061] Additionally, an outer guide part (400) is provided between the upper cover (100) and the lower cover (200).

[0062] First, the lower cover (200) is formed with an auxiliary guide groove (260) on the outside, and the outer guide portion (400) is formed with a guide protrusion (420) that is coupled to the side of the upper cover (100) and follows the auxiliary guide groove (260) of the lower cover (200) to guide the lower cover (200) from the outside and close the joint gap between the upper cover (100) and the lower cover (200), thereby preventing a gap between the upper cover (100) and the lower cover (200) from widening or foreign substances from getting caught between them.

[0063] In addition, the outer guide part (400) has a fitting hole (440) formed on the inside, and the upper cover (100) has a fitting hole (160) formed so that they can be fixed by being joined using a rivet method.

[0064] In addition, a guide hole (460) is formed at the bottom of the outer guide portion (400) to guide the position of the fixed switch (300).

[0065] The above-described double-sided wing portion (240) is characterized in that the guide protrusion (252) is formed and the block (250) that is coupled inward is divided. The reason why the block (250) is coupled and separated in the double-sided wing portion (240) is because the guide protrusion (252) of the block (250) protrudes inward, making it difficult to produce the lower cover (200) with a single mold. Therefore, the double-sided wing portion (240) is provided with a mutually connecting portion (254) and a protruding portion (262) so that the block (250) can be inserted and coupled, and the block (250) is structured to be vertically inserted upward and coupled. In addition, a slot (255) is formed to firmly couple the block (250), and this also matches the slot (255) of the double-sided wing portion (240).

[0066]

[0067] As described above, it can be seen that the present invention is based on the basic technical idea of ​​an arch shank device for a shoe with freely adjustable angle, and it is obvious that many other modifications are possible for those skilled in the art within the scope of the basic idea of ​​the present invention.

Claims

1. An upper cover installed on the arch of the shoe and having curved guide grooves formed on both sides along the length of the shoe; A lower cover that is coupled to the lower part of the upper cover and has a guide protrusion formed on the inside so that it can rotate at a certain angle along the curved guide groove, and the height of the protrusion relative to the sole of the shoe is variable depending on the rotation angle; An arch shank device for a shoe, characterized in that it includes a fixed switch that is connected by penetrating the upper cover from the side of the lower cover and maintaining the rotation angle of the lower cover.

2. In paragraph 1, The above lower cover has an auxiliary guide groove formed on the outside, An arch shank device for a shoe characterized in that it is provided with an outer guide portion that is coupled to the side of the upper cover and has a guide protrusion formed along the lower cover auxiliary guide groove to guide the lower cover from the outside and close the gap between the upper cover and the lower cover.

3. In paragraph 1, The above upper cover, It is formed with a curved plate portion having an upward curve according to the shank of the shoe, and a box-shaped box portion protruding from the lower portion of the curved plate portion, and a number of side holes are formed along a certain angle in the box portion. The above lower cover, It is combined in a form that wraps around the box part of the upper cover. It is composed of a bottom part and a double-sided wing part on the upper side of the bottom part, and the guide protrusions are formed on both sides of the box part and are joined to the curved guide groove. The above two wing parts have holes formed in a size corresponding to the upper side holes. An arch shank device for a shoe characterized in that the above fixed switch is composed of a bolt and a nut that are combined with one of the side holes in the hole to maintain an angle.

4. In paragraph 3, On the above two wings, An arch shank device for a shoe characterized in that the above guide protrusion is formed and the block that is joined to the inside is divided.

5. In paragraph 1, The above upper cover, It is formed with a curved plate portion having an upward curve according to the shank of the shoe, and a box-shaped box portion protruding from the lower portion of the curved plate portion, and a side hole is formed in the box portion. The above lower cover, It is combined in a form that wraps around the box part of the upper cover. It is composed of a bottom part and a double-sided wing part on the upper side of the bottom part, and the guide protrusions are formed on both sides of the box part and are joined to the curved guide groove. The above-mentioned two-sided wing portion is formed with a large curved slot that accommodates the side hole according to the rotation angle, and a partition wall is formed on the inside. An arch shank device for a shoe characterized in that the above fixed switch is coupled to the hole and is pressed between the partition walls partitioned on the inside of the slot by spring elasticity to maintain the angle.

6. In paragraph 5, On the above two wings, An arch shank device for a shoe characterized in that the above guide protrusion is formed and the block that is joined to the inside is divided.

7. In paragraph 1, An arch shank device for a shoe characterized in that an elastic pad is combined at the lower part of the lower cover.

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