KR100314826B1 - Length adjustable shoes - Google Patents

Abstract

PURPOSE: A length-adjustable shoe comprising a length-adjusting means disposed at an insole, an elastic member disposed at a portion of a shoe upper and outsole and a fixing means for fixing a shoe shape is provided. Whereby, the shoe can be easily worn by adjusting within the range of no deformation corresponding substantially to the size and shape of the user's foot. CONSTITUTION: This shoe comprises: a length-adjusting means disposed at the specified position of an insole to control the insole by a specified length; an elastic part(40) disposed at the portion of a shoe upper(3) and outsole corresponding to the length-adjusting means to give a specified elasticity; and a fixing means disposed at the front and rear side of the upper to fix the shoe shape corresponding to a foot size. The length-adjusting means contains a dovetail groove(11-1) having a specified length at the lower part, a plain gear(12-1) constructed to be geared with a rack gear(11a) and a fixing key and formed by a cross-adjusting groove at the upper surface and a dovetail(12-2).

Description

Adjustable shoes {LENGTH ADJUSTABLE SHOES}

The present invention relates to a shoe, and more particularly, to adjust the size of the shoe within a predetermined range to fit the foot of a child, and in particular to provide convenience to other wearers of the left and right foot size. It relates to a shoe that can be adjusted in length to reduce the burden of purchasing a shoe.

In general, as a person walks, the foot is exposed to the outside to protect it from external interference and to walk in shoes for the purpose of mitigating the impact directly on the sole.

Shoes are worn by men and women, shoes size and design form, or functional, regardless of the wearer, usually from children, shoes are usually purchased in a slightly larger size according to the development of the body, Most children wear a short period of time, so wearing shoes for long periods of time rarely causes the floor to wear out or hedges, and the majority of children wear them by the year or the following year. This means that shoes that are once discarded by a growing population cannot be reused, and therefore, there is a disadvantage in that a considerable amount of money is consumed.

In addition, according to the shoes wearer, when the left and right foot sizes are different from each other, the shoes need to be purchased separately or a pair of shoes are worn. There was a problem that the purchase price is burdensome.

The present invention has been made to solve the conventional problems as described above, to adjust the size of the shoe within a predetermined range to fit the wearer's feet, especially to the wearer of the foot size of the left and right The purpose of the present invention is to reduce the burden of double purchase of shoes by providing convenience.

According to the present invention for achieving the above object, the middle of the shoe is formed in the front and rear direction, the length adjustment means for adjusting the midsole length by a predetermined length in a predetermined position of the partitioned midsole; An elastic part installed on the upper and the sole of the shoe according to the length adjusting means to impart a predetermined elasticity; The elastic part is provided connected to the front, the rear side is provided with a shoe adjustable length consisting of fixing means for fixing the shoe shape according to the foot size.

1 is a side cross-sectional view showing a partially cut to show the configuration of the present inventors shoes,

Figure 2 is an exploded perspective view showing a midsole of the inventor's shoes,

3 is a plan view showing a length adjustment state of the midsole in FIG.

4 and 5 are cross-sectional views taken along the line A-A of FIG.

6 to 8 is a side view showing a state in which the fixing means capable of fixing the shoe length in accordance with the present invention is applied to the upper side of the shoe,

Figure 9 is a side view showing a state in which the elastic portion is applied to the upper portion of the shoe and the front end of the shoe,

10 and 11 is a bottom view showing a state in which the elastic material is applied to the sole portion as an embodiment according to the present invention,

12 is an exploded perspective view of a shoe shown to adjust the length of the midsole according to the fastening of the screw to the front end side portion of the midsole according to an embodiment of the present invention,

Figure 13 is a plan view showing the length adjustment state of the midsole in Figure 12,

Figure 14 is an exploded perspective view of the midsole showing the rear end portion of the midsole according to another embodiment of the present invention to adjust the length of the midsole according to the fastening of the screw,

15 is a plan view showing a length adjustment state of the midsole in FIG.

16 is a cross-sectional view taken along the line B-B in FIG. 15.

◎ Explanation of symbols for main part of drawing

1: shoe 2: midsole

3: upper 4: outsole

10, 20, 30: length adjusting means 40, 50: elastic portion

60: fixing means

Hereinafter, described in detail with reference to the accompanying drawings showing the present invention as an embodiment.

1 is a side cross-sectional view partially cut to show the configuration of the present invention shoes, in the shoe (1), the midsole (2) of the shoe (1) in the front and rear direction to partition, but is divided into midsole Length adjusting means (10, 20, 30) for adjusting the midsole length by a predetermined length at a predetermined position of (2); Elastic parts (40, 50) installed on the upper (3) and the sole (4) of the shoe according to the length adjusting means to impart a predetermined elasticity; The elastic part is connected to the front and rear sides and is composed of fixing means 60 for fixing the shoe shape according to the foot size.

The length adjusting means 10 partitions a predetermined position from the rear end with respect to the entire length of the shoe midsole 2, and has a dovetail groove 11-1 and a dovetail groove 11-1 having a predetermined length on the bottom. It is formed at a predetermined position of the rack gear 11a formed on one side of the length of the rectangular length adjusting hole (11-2), and one side in the length adjusting hole (11-2) is formed integrally rotatably and in the longitudinal direction A first middle warehouse part 11 composed of a fixing key 11-3 having a fixed gear 11b formed on one surface thereof is provided, and the rack gear 11a and the fixing key 11 in the length adjusting hole 11-2 are provided. -3) the spur gear 12-1 having a predetermined diameter having a cross groove 12b formed on the upper surface thereof, and a seating groove 12a for seating the bottom surface of the spur gear 12-1 to a predetermined depth. It is formed in, and the dovetail (12-2) of a predetermined length to be guided to the dovetail groove (11-1) is configured to be divided into a first midsole control portion 12 formed integrally.

Since the fixing key 11-3 is integrally connected to the length adjusting hole 11-2 of the first middle warehouse part 11, the connection part of the fixing key, that is, the hinge part, is located at the tip side of the shoe. It is formed in the corresponding length adjusting hole (11-2) and the other end to form a recess (not shown in the figure) to be easily drawn out from the length adjusting hole, or to be formed shorter than the length of the length adjusting hole.

In addition, the length adjusting means 20 is partitioned a predetermined position from the front end with respect to the entire length of the shoe midsole, a bottom dovetail groove 21-1 having a predetermined length is formed, dovetail groove 21-1 A second middle warehouse part 21 formed with a first adjustment hole 21-2 having a predetermined diameter communicating from the center of the center to the rear end of the midsole; The dovetail 22-2 having a predetermined length is integrally formed to guide the dovetail groove 21-1, and the second adjusting hole 22- has a predetermined length from the bottom surface of the dovetail 22-2. 3) is formed, the adjustment space portion 22-4 is formed in communication with the second adjustment hole (22-3), the nut member (22-5) formed with a fastening hole in the adjustment space (22-4) is An attached second midsole control part 22; The nut member 22-5 is installed through the first adjusting hole 21-2 of the second middle warehouse part 21 and the second adjusting hole 22-3 of the second midsole adjusting part 22. Fastening screw 23a is formed on one side to fasten the second midsole adjusting part 22 with respect to the second middle warehouse part 21 by a predetermined distance, and an adjusting groove 23b is formed on one side. Consists of the formed adjustment bar (23).

One end portions of the first, second, and triple sole adjustment units 12, 22, 32 and the first, second warehouse fixing parts 11, 21, 31 are inclined surfaces 11c, 12c, 21c, 22c, 31c, 32c) are formed.

On the other hand, according to another embodiment of the present invention, as shown in Figure 14, the length adjusting means 30 partitions a predetermined position from the rear end with respect to the overall length of the shoe midsole 2, the predetermined length on the bottom A third middle warehouse part 31 having a dovetail groove 31-1 having a dovetail groove 31-1 and having a nut member 31-2 attached to a center of the dovetail groove 31-1; The third adjustment hole 32-1 is formed at the center in the longitudinal direction so as to be guided to the dovetail groove 31-1 and positioned in a straight line with the nut member 31-2, and the dovetail 32-2 is formed. A third midsole control part 32 formed into a plurality of sections at predetermined intervals; It is fastened to the nut member 31-2 of the third midsole control part 32 and fastened to a predetermined section on one side so as to space the third midsole control part 32 with respect to the third midsole fixing part 31 by a predetermined interval. The threaded portion 33a is formed, and is composed of an adjustment rod 33 formed with an adjustment groove 33b on one side.

The adjustment groove 33b of the adjustment bar 33 is to be adjusted in the direction of the outer back of the shoe, one end of the adjustment rod 33 is installed in a structure that is introduced into a predetermined depth from one side of the third midsole control portion (32) do.

One end of the fastening screw portion (23a, 33a) of the adjustment bar (23, 33) is formed with a locking jaw (23d, 33d) wider than the diameter of the adjustment bar can prevent the deviation from adjusting the length of the shoe in the assembled state from the nut member In this structure, when the assembly is formed on the nut member by the formation of the locking step is installed by forcefully fitted from the bottom surface of the nut member with the bottom open.

Among the elastic parts 40 and 50, the elastic part 40 installed on the upper 3 is installed as a span including a rubber material, and the elastic part 50 installed on the sole 4 has a predetermined thickness. It is formed in a bellows shape having elasticity. Here, the elastic part 50 is integrally formed with the sole 4, and the elastic part which is variable in length in the form of the bellows is placed on the space part of the shoe with respect to the ground, that is, the part which is not in close contact with the ground while wearing the shoe. Preferably formed.

In addition, the fixing means 60 is installed on the elastic portion 40 side provided in the upper (3) of the shoe (1) is a strap for adjusting the length of the elastic portion 40 provided in the shoe, Can be installed with bellows and tie bands.

The shoe (1) can be applied to shoes that can be adjusted to the length of the midsole (2), upper (4), outsole (4) as sneakers, hiking boots, golf shoes, shoes, boots and specialty for work, but not limited to this Do not.

Referring to the operation and effects of wearing the adjustable shoes according to the present invention configured as described above are as follows.

First, while purchasing and wearing the shoe 1 according to the foot size of the wearer to separate the insole (insole) of the worn shoe in order to adjust the shoe size according to the development state of the body.

In the state in which the insole (not shown in the figure) is separated and the midsole portion of the shoe is exposed, the wearer is provided with a length adjusting means installed on the side of the first midsole section 11 constituting the midsole 2 as shown in FIG. 10) can be used to adjust the size of the shoe to the wearer's foot size.

To describe in more detail the above state, the groove provided in the longitudinal end of the fixing key (11-3) using a relatively flat tool from the length adjusting hole (11-2) provided in the first middle warehouse portion (11). For example, the fixing key 11-3 is pivotally connected to one side of the length adjusting hole.

In the above state, the spur gear 12b fixed to the fixed gear 11b formed on one surface of the fixing key 11-3 and the rack gear 11a provided on one surface of the length adjusting hole 11-2. The length of the midsole 2 can be variably adjusted by rotating 1).

The spur gear 12-1 has a cross groove 12b formed on an upper surface thereof, and the rack gear 11a is always engaged with the rack gear 11a in the length adjusting hole 11-2 using a driver tool. It can be adjusted by rotating in one direction along the length direction. At this time, the first midsole control unit 12, which is partitioned with respect to the first middle warehouse unit 11 and forms one midsole, has one end surface in contact with one end surface of the first middle warehouse unit 11. It is spaced a predetermined interval.

The distance between the space between the first midsole section 11 and the first midsole control unit 12 can be spaced apart up to a maximum of about 10 mm, so as not to exceed the limit of deformation for the shoe size.

In rotating the spur gear 12-1, the spur gear 12-1 has a predetermined depth from the seating groove 12a formed on the upper surface of the dovetail 12-2 of the first midsole adjusting part 12. It can be guided to rotate stably, the first midsole adjusting portion 12 from the dovetail groove (11-1) provided in the first middle warehouse portion 11 in adjusting the spur gear (12-1) Dovetail of the) is to be guided in a straight line is to be able to vary the first midsole control portion 12 from the first midsole portion 11 to the appropriate length.

The dovetail 12-2 and the dovetail groove 11-1, as shown in the cross-sectional view shown in Figs. 4 and 5, the first midsole adjustment portion 12 from the first midsole section 11 In the state in which the length adjustment or adjustment is completed, the inclined surfaces 11c and 12c, which are end portions of the first midsole fixing unit 11 and the first midsole adjusting unit 12, are spaced in close contact with each other and are spaced apart from each other. ) And the separation and depression of the midsole in the spaced apart portion of the first midsole control unit 12 can be prevented.

If the fixed key (11-3) separated from the length adjusting hole (11-2) in the state that the length adjustment is completed as described above to be assembled in the length adjusting hole (11-2) to the initial state again, the flat The gear 12-1 is engaged with the rack gear 11a in the length adjusting hole 11-2, and the fixed gear 11b portion of the fixing key 11-3 is the spur gear 2-1. ) Is fixed to the spur gear (2-1) and guides the insole of the shoe to the upper surface of the midsole (2) again.

One end of the first midsole control unit 12 and the first middle warehouse portion 11, that is in contact with each other, in a form in which the first midsole control portion 12 and the first middle warehouse portion 11 are spaced apart from each other As shown in FIG. 1, the inclined surfaces 11c and 12c are formed so that the gap between the first midsole control unit 12 and the first midsole fixing unit 11 is spaced apart from each other. In this case, the inclination angle is reduced to minimize interference with the bottom surface of the wearer's foot.

The spacing pitch of the spur gear 12-1, the rack gear 11a, and the fixed gear 11b is approximately 1 mm or 1.3 mm between the first midsole adjusting part 12 and the first midsole fixing part 11, respectively. It is desirable to be adjusted while being spaced apart. This is to allow fine adjustment of the length interval for the wearer's foot size.

On the other hand, in the variable length of the midsole to be fixed, each elastic portion 40, 50 formed in the upper (3) portion or the sole 4 of the shoe is the first midsole fixing portion 11 and the first The sole midsole 12 is extended by the length of the spaced apart so that the wearer can conveniently wear in a variable state.

The elastic portion 50 applied to the sole 4 of the shoe is formed in a position that is not in close contact with the ground space of the shoe with respect to the ground, that is, the elastic portion is variable in length in the form of a bellows In this case, the elastic part can be protected to a minimum by reducing interference with the ground in walking.

On the other hand, the elastic portion 40 applied to the upper (3) portion is made of a rubber material having elasticity and restoring force in a portion corresponding to a predetermined length by the degree of pressing, so that walking in the state wearing shoes Accordingly, the feeling of pressure applied to the shoe can be eliminated, and the shoe size can be freely worn within the allowable range of the wearer's foot size only by the configuration of the elastic parts 40 and 50.

6 to 8 attached to the elastic portion 40 side provided in the upper (3) of the shoe in the state as described above, the fixing means 60 is applied, the fixing means 60 after the length is adjusted In order to expect a more stable fit, it is possible to form a different design according to the shape of the shoe by applying a detachable bell claw type, strap band type and strap strap type.

10 and 11 are attached to the elastic portion 50, that is, the bellows portion provided on the bottom surface of the sole 4 is formed in the front and rear end of the two places to adjust the length of the shoes before and after to wear the shoes, It is possible to maintain the degree of deformation almost less, which makes it easy to wear.

Such a state can satisfy the purchase requirements of shoes for infants with fast body growth or wearers with different foot sizes, and can provide convenience in wearing.

On the other hand, Figures 12 and 13 attached to an embodiment according to the present invention, the second midsole adjustment portion 22 and the second midsole fixing portion 21 formed a predetermined position from the front end with respect to the entire length of the midsole is You can adjust it as follows.

The first adjustment hole 21-2 of the second middle warehouse part 21 is returned to the release groove by using a driver tool to the adjustment groove 23b of the adjustment rod 23 exposed to the outer portion corresponding to the rear side of the shoe. And the fastening screw portion 23a of the adjusting rod 23 installed through the second adjustment hole 22-3 of the second midsole adjusting portion 22 in the fastening state from the nut member 22-5. At the same time, the second midsole control unit 22 can be spaced apart from the second middle warehouse unit 21 at a predetermined interval.

At this time, the dovetail 22-2 of the second midsole adjusting part 22 is gradually guided from the nut member 22-5 and the dovetail groove 21-1 of the second midsole fixing part 31. Spaced apart.

In the wear of the adjustment of the length of the midsole as described above, it is possible to cope with the feeling of wearing the shoes to the wearer relatively wide width for the ball of the tip of the foot. In addition, it is possible to wear to both wearers with valgus, varus valgus in an inappropriate relationship of the foot can be comfortable to wear.

And, as shown in the accompanying FIG. 15 as another embodiment of the present invention, the interval adjustment of the third midsole adjustment unit 32 from the third warehouse portion 31 is as follows.

The third adjustment hole (32-1) of the third midsole control unit (32-1) by turning in the disengaging direction by using a screwdriver tool to the adjusting groove (33b) of the adjusting rod (33) exposed to the outer portion corresponding to the rear side of the shoe. The fastening screw portion 33a of the adjusting rod 33 penetrated through the) is released from the nut member 31-2 attached to the dovetail groove 31-1, and the third middle warehouse part ( 31 is spaced apart from the third midsole control unit 32 by a predetermined interval.

At this time, the two dovetails formed at predetermined intervals toward the third midsole adjustment part 32 are guided from the dovetail grooves 31-1 of the nut member 31-2 and the third middle warehouse part 31. Spaced apart.

In wearing the shoes adjusted in the above state, the shoes can be worn by a method of properly fixing to the wearer's foot size using the fixing means 60 as shown in Figure 6 to 8 attached to And, the adjustment bar 33 is located on the rear side of the shoe when the weight is carried on the back portion of the shoe to be able to walk more stable.

On the other hand, Figure 9 is a side view showing a state in which the elastic portion is applied to the upper and the sole of the shoe in accordance with the adjustment of the adjustment rod 33 to wear the variable length of the tip portion of the shoe, the width of the foot and the back of the foot There is an advantage that the wearer who is relatively minute can wear comfortably.

Therefore, by using the length adjustment means (10, 20, 30), the elastic portion (40, 50), the fixing means 60 as described above, the shoe size can be adjusted to a variable length, preferably around 10mm back and forth Fast growing children and paired foot wearers with different left and right foot size can be conveniently worn.

As described above, the present invention is to adjust the shoe to the size of the shoe within the range that does not deform the shape of the shoe by the length adjusting means, the elastic portion and the fixing means in the midsole portion, upper portion of the shoe, the sole portion of the shoe By making it possible to wear, the shoes can be worn for a long time, as well as the economic effect of significantly reducing the burden of double purchase.

Claims (9)

Length adjusting means (10, 20, 30) for partitioning the midsole (2) of the shoe (1) in a forward and backward direction to adjust the midsole length by a predetermined length at a predetermined position of the midsole to be partitioned; Elastic parts (40, 50) installed on the upper (3) and the sole (4) of the shoe according to the length adjusting means to impart a predetermined elasticity; Adjustable length shoes, characterized in that consisting of the fixing means 60 for fixing the shoe shape according to the foot size is installed connected to the front, rear to the elastic portion (40). The length adjusting means (10) is a dovetail groove (11-1) having a predetermined length on the bottom, while partitioning a predetermined position from the rear end with respect to the overall length of the shoe midsole, It is formed at a predetermined position of the dovetail groove (11-1), and the rectangular length adjusting hole (11-2) formed with a rack gear (11a) on one side surface, A first midsole fixing part 11 having a fixing key 11-3 having a fixed gear 11b formed on one side thereof in a lengthwise adjustment direction 11-2 so as to be integrally rotatable; The gear is installed in the rack gear (11a) and the fixing key (11-3) in the length adjusting hole (11-2) and the cross-shaped groove 12b is formed on the upper surface of the spur gear 12-1 of a predetermined diameter, A seating groove 12a is formed on the upper surface for seating the bottom surface of the spur gear 12-1 to a predetermined depth, and a dovetail 12-2 of a predetermined length is integrated to guide the dovetail groove 11-1. Foot-length adjustable shoes, characterized in that consisting of the first midsole adjustment portion 12 formed. According to claim 1, wherein the length adjusting means 20 is partitioned a predetermined position from the front end with respect to the overall length of the shoe midsole, a bottom dovetail groove 21-1 having a predetermined length is formed, the dovetail groove ( A second midsole part 21 formed with a first adjustment hole 21-2 having a predetermined diameter communicating from the center of the 21-1 to the rear end of the midsole; The dovetail 22-2 having a predetermined length is integrally formed to guide the dovetail groove 21-1, and the second adjusting hole 22- has a predetermined length from the bottom surface of the dovetail 22-2. 3) is formed, the adjustment space portion 22-4 is formed in communication with the second adjustment hole (22-3), the nut member (22-5) formed with a fastening hole in the adjustment space (22-4) is An attached second midsole control part 22; The nut member 22-5 is installed through the first adjusting hole 21-2 of the second middle warehouse part 21 and the second adjusting hole 22-3 of the second midsole adjusting part 22. The fastening screw portion 23a is formed on one side of the fastening screw portion 23a so as to be fastened to the second midsole adjusting portion 22 so as to be spaced apart from the second midsole adjusting portion 22 by a predetermined distance. Hanging jaw (23d) is formed on, the adjustable shoes, characterized in that consisting of the adjusting rod 23 is formed with an adjustment groove (23b) on the other side. According to claim 1, wherein the length adjusting means 30 is a dovetail groove 31-1 having a predetermined length on the bottom, while partitioning a predetermined position from the rear end with respect to the overall length of the shoe midsole, A third middle warehouse part 31 composed of a nut member 31-2 attached to the center of the dovetail groove 31-1; A third midsole control part 32 in which a dovetail 32-2 having a predetermined length is guided to the dovetail groove 31-1; It is installed through the center of the third midsole control part 32 is fastened to the nut member 31-2 to space the third midsole control part 32 with respect to the third middle warehouse part 31. The fastening screw portion 33a is formed at a predetermined position with a predetermined length, and the locking jaw 33d is formed at one end of the fastening screw portion 33a, and the adjusting rod 33 is formed on the other side thereof. Characterized adjustable shoes. The first, second and third triplets control unit 12, 22 and 32 and the first, second and triple warehouse parts 11, 21 and 31 according to any one of claims 2 to 4. One end portion that is in contact with each other is inclined surface (11c, 12c, 21c, 22c, 31c, 32c) of the predetermined distance is adjustable shoes, characterized in that formed. According to claim 1, wherein the elastic portion 40 provided on the upper (3) of the shoe is made of a span containing a rubber material, the elastic portion 50 provided on the sole (4) of the shoe has a predetermined thickness Shoe having an adjustable length, characterized in that formed with a bellows having elasticity. The shoes of claim 6, wherein the elastic portion (50) is formed at a front end side or a front end side and a rear end predetermined position on a bottom of the shoe sole (4), respectively. According to claim 1, The fixing means 60 is adjustable shoes, characterized in that the installation straps, bellows or binding bands for adjusting the length of the elastic portion 40 provided in the shoe is provided . The method of claim 1, wherein the shoe (1) is a shoe that can adjust the length of the midsole (2), upper (4), outsole (4) by sneakers, hiking boots, golf shoes, shoes, boots and specialized shoes Adjustable shoes.