WO2005110139A1

WO2005110139A1 - Shoes for training

Info

Publication number: WO2005110139A1
Application number: PCT/KR2005/001461
Authority: WO
Inventors: Yun-Ja Choi; Jae-Kyung Choi
Original assignee: Cheong Il Co., Ltd.
Priority date: 2004-05-18
Filing date: 2005-05-18
Publication date: 2005-11-24
Also published as: KR200357930Y1

Abstract

The present invention relates to shoes comprising uppers; a lower sole to couple with the uppers and have an accommodator which is upwardly depressed; a weight body to be detachably accommodated in the accommodator; and an inner sole to be removably disposed on an upper surface of the weight body. Thus, the present invention provides shoes, which are not only used for training shoes but also for casual shoes. Also, the present invention provides shoes, which have weight bodies as a single body to be used for training shoes and of which the weight bodies are not easily damaged.

Description

SHOES FOR TRAINING

FIELD OF THE INVENTION The present invention relates to shoes for training, and more particularly, to shoes which is used not only for shoes for training but also for casual shoes. BACKGROUND ART Shoes which are made of leather or rubber comprise a shoes upper for which several uppers are sewed to form an external appearance; and an inner sole, a middle sole and an outsole to form a bottom surface of the shoes . Generally, shoes do not perform functions such as building strength and developing leg muscles. Accordingly, if athletes or ordinary people would like to build up muscles, they should put sand pouches to their legs. However, the sand pouches may cause people feel uncomfortable, or slip down when they do exercise for long time. Meanwhile, shoes which comprise a plurality of rectangular grooves formed in an outsole thereof and metal beads to be disposed in the rectangular grooves are disclosed. That is, a plurality of metal beads are bonded by an adhesive to be inserted to the rectangular grooves. When the adhesive becomes hard, the metal beads are completely adhered to the outsole, thereby manufacturing shoes weighing as much as typical gaiters. However, as the adhesive is used so much in manufacturing the shoes that it does harm to a worker.

Also, the outsole is manufactured through three work processes, thereby reducing productivity and increasing production costs due to increased work processes. Further, a worker inserts the metal beads bonded with the adhesive manually, thereby disposing the metal beads ununiformly in the bottom surface of the shoes and lowering the quality of the shoes. Korean Utility Model No. 285,242 discloses shoes for training which have a plurality of metal rods and a PVC pipe inserted therein to make the shoes heavy, wherein the metal rods are inserted and extracted with regard to the inside of the PVC pipe, thereby adjusting the weight of the shoes . The utility model advances from conventional shoes for training in that weight bodies are uniformly disposed in the bottom surface of the shoes and, particularly, the weight of the shoes is adjusted. However, the utility model is only used as shoes for training, and not used as casual shoes. DISCLOSURE OF INVENTION Accordingly, it is an aspect of the present invention to provide shoes, which are not only used for training shoes but also for casual shoes. Also, it is another aspect of the present invention to provide shoes, which have weight bodies as a single body to be used for training shoes and of which the weight bodies are not easily damaged. Additional aspects and advantages of the general inventive concept will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the general inventive concept. The foregoing and/or other aspects and advantages of the present invention are achieved by providing Shoes comprising uppers; a lower sole to couple with the uppers and have an accommodator which is upwardly depressed; a weight body to be detachably accommodated in the accommodator; and an inner sole to be removably disposed on an upper surface of the weight body. The weight body may be made of forming material and an weight additive which is added to the forming material. The forming material may comprise at least one of rubber and plastic. The weight additive may comprise at least one of magnet powder, stone powder and metal powder. The accommodator may be formed plurally and the weight body may be provided plurally to be respectively accommodated in a plurality of accommodators . The lower sole may be formed with a position fixer to fix a position of the weight body on the upper surface thereof, and the weight body is formed with a position coupler to be correspondingly coupled to the position fixer. The weight body may be comprised of a plurality of replacement weight bodies to be detachably accommodated in the accommodators of the lower sole. The weight body may be a mold to be detachably accommodated in the accommodators of the lower sole. BRIEF DESCRIPTION OF THE DRAWINGS These and other aspects and advantages of the present general inventive concept will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the accompany drawings of which: FIG. 1 is a sectional view of shoes for training and casual use according to a first embodiment of the present invention; FIG. 2 is an exploded perspective view of the shoes for training and casual use in FIG. 1; FIG. 3 illustrates a process of inserting and extracting weight bodies as an element of the shoes for training and casual use in FIG. 1; and FIG. 4 is a sectional view of shoes for training and casual use according to a second embodiment of the present invention. MODES FOR CARRYING OUT THE INVENTION Reference will now be made in detail to the embodiments of the present general inventive concept, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout. The embodiments are described below in order to explain the present invention by referring to the figures. In the present invention, shoes keep original characteristics thereof such as curvature, cushioning, etc. and are formed with a space inside a sole to insert a flexible weight body and increase the weight of the shoes . Here, the weight body is preferably but not necessarily made of forming material such as rubber and an weight additive to be added to the forming material . For example, there are mixture of natural rubber and magnet, mixture of natural or synthetic rubber and stone powder or mixture of natural or synthetic rubber and metal (lead) . Such shoes for training may contribute to effective exercise and increased calorie consumption. Also, if inserting sponge or polyurethane which is made of P.U or E.V.A to the inside the shoes as the weight body, the shoes may be used for casual shoes. As described above, the present invention relates to shoes which are not only used for training shoes but also for casual shoes . Typical shoes are changed into shoes for training by forming an accommodator with predetermined thickness in an outsole thereof and inserting the weight body which is integrally formed, to the accommodator through an ankle spacer of the shoes. As shown in FIGS. 1 and 2, shoes according to a first embodiment of the present invention comprise uppers 10, a lower sole 20 to be coupled with the uppers 10, a weight body 30 to be detacably accommodated in an accommodator 23 formed in the lower sole 20 and an inner sole 40 to be disposed on an upper surface of the weight body 30. As a skill of coupling the uppers 10 and the lower sole is included in common production process of shoes, the description thereof will be avoided. The lower sole 20 comprises an outsole 21 and a middle sole 25. The outsole 21 comprises the accommodator 23 which is depressed therein and a plurality of position fixers 22 which are protruded on an upper surface thereof. The middle sole 25 is formed with a position coupler 26 in a position corresponding to the position fixers 22, and accommodated in the accommodator 23 of the outsole 21. When the middle sole 25 is accommodated in the shoes, the position fixers 22 of the outsole 21 penetrate the middle sole 25 to be protruded upwards. The position coupler 26 is inserted to the position fixers 22 to fix the position of the middle sole 25, and prevent the weight body 30 or a mold (not shown) from slipping or being separated. The weight body 30 is formed like a sole same as the shape of the middle sole 25. The weight body 30 is made of mixture of forming material such as rubber or plastic and weight additives like magnet powder, stone powder or metal powder which are added to the forming material . For example, the weight body 30 -may be formed like the middle sole 25 after mixing natural rubber and magnet at a predetermined ratio. Alternatively, the weight body 30 may be formed by mixing natural or synthetic rubber and stone powder (heavy bony coal) at a predetermined ratio. Also, natural or synthetic rubber may be mixed with metal powder such as lead, etc. at a predetermined ratio to form the weight body 30. At this time, the mixture ratio of composites for forming the weight body 30 may differ depending on the weight of a desired weight body 30. If producing a heavy weight body 30, additives such as magnet powder, stone powder or metal powder may be increased. Conversely, if producing a light weight body 30, the above-mentioned additives may be decreased. As the weight body 30 may be provided plurally by weight according to the content of the weight additives, a user may replace the weight body 30 with a replacement weight body (not shown) with a proper weight. If using the shoes for training according to the present invention as the casual shoes, a common mold (not shown), which is shaped like the weight body 30, may be replaced with the weight body 30. Sponge or polyurethane, which is made of P.U or E.V.A may be used in manufacturing the mold. As shown in FIG. 1, the weight body 30 is formed with a plurality of insertion grooves 31 on a bottom surface thereof. The insertion grooves 31 penetrate the middle sole 25 to be inserted to the position fixers 22 which are protruded upwards. Accordingly, the weight body 30 is fixed to the lower sole 20 by the position fixers 22. FIG. 3 illustrates a process of mounting the weight body 30 having the foregoing configuration, to the shoes. As shown therein, the uppers 10 and the lower sole 20 are permanently coupled by sewing or bonding, and the weight body 30 and the inner sole 40 may be detachably inserted to the shoes . As the weight body 30 may be deformed elastically into a predetermined level due to characteristics of rubber or plastic forming the weight body 30, it may be detachably inserted to the shoes without difficulty. As described above, the weight body 30 may be provided with the plurality of replacement weight bodies in different weights to use the shoes for training. If the foregoing mold is inserted to the shoes instead of the weight body 30, the shoes may be used as casual shoes. Meanwhile, shoes according to a second embodiment of the present invention comprise a plurality of accommodators 27 to accommodate a weight body 50 on an upper surface of a middle sole 25 which is included in a lower sole 20 and thicker than that of the first embodiment of the present invention, as shown in FIG. 4. Also, the weight body 50 may be plurally provided to correspond to the respective accommodators 27. The number and shape of the accommodators 27 and the weight body 50 are not limited to those described in the first embodiment or the second embodiment . The accommodators 27 and the weight body 50 may be provided in various numbers and shapes. For example, the accommodators 27 and the weight body 50 may be provided solely or plurally, and shaped like a bar or plate. Alternatively, the accommodators 27 and the weight body 50 may be provided plurally, and shaped like a cylinder. As described above, the shoes according to the present invention may be used not only as the shoes for training, but also for the casual shoes. Also, a user may adjust the weight of the shoes by replacing the plurality of weight bodies in different weights when using the shoes for training. Also, in the shoes according to the present invention, the weight body is formed in a single body, thereby manufacturing the shoes without difficulty and not causing damage easily. Also, as the weight of the weight body is uniformly distributed to the entire bottom of the shoes, the shoes are proper for training. Further, as the weight body is deformed elastically due to its characteristics, it may prevent a user from being hurt due to the weight body. Thus, a user may develop physical strength without difficulty. Although a few embodiments of the present general inventive concept have been shown and described, it will be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the general inventive concept, the scope of which is defined in the appended claims and their equivalents.

Claims

CLAIMS What is claimed is: 1. Shoes comprising: uppers ; a lower sole to couple with the uppers and have an accommodator which is upwardly depressed; a weight body to be detachably accommodated in the accommodator; and an inner sole to be removably disposed on an upper surface of the weight body. 2. The shoes according to claim 1, wherein the weight body is made of forming material and an weight additive which is added to the forming material . 3. The shoes according to claim 2, wherein the forming material comprises at least one of rubber and plastic . 4. The shoes according to claim 2, wherein the weight additive comprises at least one of magnet powder, stone powder and metal powder. 5. The shoes according to claim 1, wherein the accommodator is formed plurally and the weight body is provided plurally to be respectively accommodated in a plurality of accommodators. 6. The shoes according to claim 1, wherein the lower sole is formed with a position fixer to fix a position of the weight body on the upper surface thereof, and the weight body is formed with a position coupler to be correspondingly coupled to the position fixer. 7. The shoes according to claim 1, wherein the weight body is comprised of a plurality of replacement weight bodies to be detachably accommodated in the accommodators of the lower sole. 8. The shoes according to claim 1, wherein the weight body is a mold to be detachably accommodated in the accommodators of the lower sole.