WO2004064940A1

WO2004064940A1 - Exercising device

Info

Publication number: WO2004064940A1
Application number: PCT/KR2003/000845
Authority: WO
Inventors: Eui-Seung Shin
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-21
Filing date: 2003-04-25
Publication date: 2004-08-05
Anticipated expiration: 2005-07-21
Also published as: AU2003222501A1

Abstract

Disclosed is an exercise device for exercises such as stretching as a warm up, finishing exercise or light exercise in a small space. The exercise device (100) comprises a main body (110) which is composed of a plurality of separable body fixing members (120), a shaft insert hole (112) which is provided on a central portion of the main body (110), a grip (111) which is provided on a predetermined portion of the main body (110), a support shaft (130) which engages in the shaft insert hole (112), a metal sheet (140) fixed in the main body (110), and a rotary body (150) which interacts with the metal sheet (140) in the main body (110).

Description

EXERCISING DEVICE

Technical Field

The present invention relates, in general, to exercise devices which are used in warm-up exercises, such as stretching exercises to be performed before main exercises, finishing exercises or light exercises in small spaces and, more particularly, to an exercise device which allows an exerciser to rhythmically exercise while shaking the exercise device using his/her hands or rotating the exercise device around his/her shoulders.

Background Art

Generally, for diet or health, many people perform aerobic exercises which work muscles while the heart rate is elevated and maintained.

Aerobic exercise burns fat as an energy source and strengthens the cardiovascular system, so that the aerobic exercise is good for persons who are weak or overweight. Furthermore, the aerobic exercise improves health and promotes weight loss by increasing the basal metabolic rate.

In small spaces, light exercises, such as free exercises without any implements or light warm-up exercises to rotate arms, neck and waist, are performed. Before or after main exercises are performed, light stretching exercises or finishing exercises are performed to sufficiently relax the body, thus preventing injury due to stiffness of the body.

However, the free exercises in small spaces are tedious, so that exercisers stop the free exercises before sufficiently warming-up. Furthermore, there are not specific exercise methods to perform the stretching exercises or the finishing exercises, which are performed before or after the main exercises. Therefore, the exercisers only relax their joints and the stiffness of their bodies by lightly moving their bodies without the specific methods.

Thus, the conventional warm-up exercises are ineffective to relax the body.

In an effort to overcome the above-mentioned problems, an exercise device, which allows the exerciser to exercise by rotating a rotating weight of the exercise device, was proposed in Korean Utility Model Registration NO. 261688, entitled 'PORTABLE CIRCULAR EXERCISE DEVICE USING ROTATING WEIGHT', and filed by the inventor of the present invention. However, the conventional exercise device is problematic in that its internal construction is very complicated due to many parts, thus increasing the production costs thereof. Disclosure of the Invention

Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide an exercise device with simplified internal construction, thus efficiently reducing manufacturing processes.

Another object of the present invention is to provide an exercise device which is reduced in size and has a good appearance, and includes a magnetic material therein, thus increasing efficiency of an exercise.

In order to accomplish the above object, the present invention provides an exercise device, including a main body comprising an upper body and a lower body, with a plurality of body fixing members to separably couple the upper body to the lower body, a shaft insert hole provided on a central portion in the main body, and a grip provided on a predetermined portion of the main body, a support shaft inserted and fastened in the shaft insert hole provided in the main body, with a bearing provided around an intermediate portion of the support shaft, a metal sheet fastened in the main body, and a rotary body to receive therein the bearing, fitted over the support shaft, while extending to a predetermined length, with a magnetic material provided on an extended end of the rotary body to interact with the metal sheet.

The metal sheet may be in close contact with an inner surface of each of the upper and lower bodies, with a shaft through hole provided on a central portion of the metal sheet to allow the support shaft, fastened in the shaft insert hole, to pass through the shaft through hole.

The exercise device may further include a locking unit projected in the main body, a locking hole provided on a predetermined portion of the metal sheet, which is in close contact with the main body, to correspond to the locking unit, so that the metal sheet is fastened in the main body by locking the locking hole of the metal sheet to the locking unit of the main body, and a plurality of extending parts to extend outward from an edge of the metal sheet in radial directions, thus interacting with the magnetic material of the rotary body. The exercise device may further include a cushion provided on an outer surface of the grip to allow easy grasping of the grip by a hand and reduce fatigue of the hand.

Brief Description of the Drawings

The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:

Fig. 1 is a perspective view of an exercise device, according to a first embodiment of the present invention; Fig. 2 is a plan view of the exercise device of the present invention;

Fig. 3 is an exploded perspective view of the exercise device of the present invention;

Fig. 4 is a front sectional view of the exercise device of the present invention;

Fig. 5 is a plan sectional view of the exercise device of the present invention; Fig. 6 is a plan sectional view of the exercise device of the present invention, in which a rotary weight is rotated above a metal sheet;

Fig. 7 is an exploded perspective view of an exercise device, according to a second embodiment of the present invention;

Fig. 8 is an exploded perspective view of a rotary body of the exercise device of Fig. 7, in which a magnetic material is inserted into the rotary body;

Fig. 9 is a front sectional view of the exercise device of Fig. 7;

Fig. 10 is a plan sectional view of the exercise device of Fig. 7; and

Fig. 11 is a plan sectional view showing an operation of the exercise device of Fig. 7.

Best Mode for Carrying Out the Invention

As shown in Figs. 1 through 3, an exercise device 100 according to a first embodiment of the present invention includes a main body 110 which forms an outer appearance of the exercise device 100. The main body 100 comprises an upper body 110a and a lower body 110b. The upper body 110a and the lower body 110b are fastened together by a plurality of body fixing members 120.

The upper body 110a and the lower body 110b, which define the outer appearance of the exercise device 100 and are fastened together by the plurality of body fixing members 120, have on predetermined portions thereof a grip 111 to allow grasping of the main body 110 by a hand of an exerciser. Furthermore, a cushion 11 la is provided on an outer surface of the grip 111 to allow easy grasping of the grip 111 by the hand and reduce fatigue of the hand during the grasping of the grip 111.

A shaft insert hole 112 is provided on a central portion of each of the upper and lower bodies 110a and 110b which include on the predetermined portions thereof the grip 111 with the cushion I l ia provided on the outer surface of the grip 111. A plurality of locking units 113 are provided on an inner surface of each of the upper and lower bodies 110a and 110b which has on the central portion thereof the shaft insert hole 112.

The exercise device 100 further includes a support shaft 130 which is fastened on the central portion of the upper and lower bodies 110a and 110b of the exercise device 100 which each include therein the shaft insert hole 112 and the plurality of locking units

113 and has the grip 111 with the cushion I lia provided on the outer surface of the grip

111.

At this time, each of both ends of the support shaft 130 is inserted into the shaft insert hole 112 of each of the upper and lower bodies 110a and 110b, as shown in Fig. 4, so that the support shaft 130 is fastened in the upper and lower bodies 110a and 110b.

Each of the both ends of the support shaft 130, which is inserted into and fastened in the shaft insert hole 112 provided on the central portion of each of the upper and lower bodies 110a and 110b, is angled to prevent the support shaft 130 from being undesirably rotated in the shaft insert holes 112. Each of the shaft insert holes 112, which receives therein each of the both ends of the support shaft 130, has a predetermined angled shape to correspond to each of the both ends of the support shaft 130. As such, the support shaft 130 is fastened between the upper and lower bodies 110a and 110b while each of the both ends of the support shaft 130 is inserted in each of the shaft insert holes 112.

In the meantime, the plurality of locking units 113 are provided on the inner surface of each of the upper and lower bodies 110a and 110b which has on the central portion thereof the shaft insert hole 112 into which the support shaft 130 is inserted. Each of the metal sheets 140 has a plurality of locking holes 142 formed at predetermined positions thereof which respectively correspond to the plurality of locking units 113. Each of the metal sheets 140 is in close contact with the inner surface of each of the upper and lower bodies 110a and 110b, with a shaft through hole 141 provided on a central portion of the metal sheet 140 to allow the support shaft 130, inserted into the shaft insert holes 112, to pass through the shaft through hole 141.

Each of the metal sheets 140, which is close contact with and is fastened on the inner surface of each of the upper and lower bodies 110a and 110b by coupling each of the locking holes 142 of each of the metal sheets 140 to each of the locking units 113 of each of the upper and lower bodies 110a and 110b, further has a plurality of extending parts 143 to extend outward from an edge of the metal sheet 140 in radial directions.

The exercise device 100 further includes a typical bearing B which is provided around an intermediate portion of the support shaft 130 which is inserted into and fastened in the shaft insert holes 112 of the upper and lower bodies 110a and 110b after passing through the shaft through holes 141 of the metal sheets 140 which are respectively fastened on the inner surfaces of the upper and lower bodies 110a and 110b. To prevent the bearing B from being separated from the support shaft 130, a stop ring is fitted over the support shaft 130, which receives on the intermediate portion thereof the bearing B, in the same manner as the typical bearing support structure. Thus, the bearing B is prevented from being undesirably separated from the support shaft

130.

The exercise device 100 further includes a rotary body 150. The rotary body 150 has an extending rod 151 to extend to a predetermined length while receiving the bearing B, which is fastened around the support shaft 130 by the stop ring, in the extending rod. The rotary body 150 further has a rotary weight 152 which is provided on an extended end of the extending rod 151.

As shown in Figs. 3 and 4, the extending rod 151, which extends to the predetermined length while receiving therein the bearing B, has a bearing insert hole 151a to receive therein the bearing B while passing the support shaft 130, which is inserted in the shaft insert holes 112 of the upper and lower bodies 110a and 110b, through the bearing insert hole 151a. Furthermore, the extending rod 151 with the bearing insert hole 151a comprises upper and lower extending rod parts fastened together by a plurality of rod locking units 160.

While the upper and lower extending rod parts are fastened together by the plurality of rod locking units 160, the rotary weight 152 is coupled to the extended end of the extending rod 151 which is opposite to the bearing insert hole 151a of the extending rod 151 in which the bearing B is received.

Because the rotary weight 152 is coupled to the extended end of the extending rod 151 which receives therein the bearing B, the rotary weight 152 along with the extending rod 151 is rotated around the support shaft 130 by the bearing B in the upper and lower bodies 110a and 110b.

The exercise device 100 further includes a magnetic material 180 which is inserted in a magnetic material insert hole 152a which is provided in the rotary weight 152 coupled to the extended end of the extending rod 151. The magnetic material insert hole 152a is provided on a predetermined portion of the rotary weight 152 at which the magnetic material 180 interacts with the extending parts 143 of the metal sheets 140 which are respectively in close contact with the inner surfaces of the upper and lower bodies 110a and 110b. That is, magnetic material 180 is inserted in the magnetic material insert hole 152a such that the magnetic material 180 is placed at the predetermined portion of the rotary weight 152 which is aligned with central portions of the extending parts 143 of the metal sheets 140. To prevent the magnetic material 180, which is inserted into the magnetic material insert hole 152a provided on the predetermined portion of the rotary weight 152 which is aligned with the central portions of the extending parts 143 of the metal sheets 140, from being undesirably removed from the magnetic material insert hole 152a of the rotary weight 152, as shown in Figs. 3 and 4, the rotary body 150 further has a magnetic material support 153 which extends from each of the upper and lower extending rod parts of the extending rod 151 toward the magnetic material insert hole 152a. Thus, the magnetic material insert hole 152a is closed with the magnetic material supports 153.

To use the exercise device 100 of the present invention having the above-mentioned structure, the exerciser grasps the grip 111 with the cushion I l ia which is defined by fastening the upper and lower bodies 110a and 110b together, and shakes horizontally the exercise device 100.

When the exerciser grasps the grip 111 with the cushion I l ia and shakes horizontally the exercise device 100, the rotary weight 152, which is coupled to the extended end of the extending rod 151 which receives therein the bearing B, is rotated between the upper and lower bodies 110a and 110b around the support shaft 130 which is fastened in the shaft insert holes 112 of the upper and lower bodies 110a and 110b.

As such, the rotary weight 152 is rotated between the upper and lower bodies 110a and 110b while the exerciser grasps the grip 111 with the cushion I l ia and shakes horizontally the exercise device 100. At this time, because the extending rod 151, which couples the rotary weight 152 to the support shaft 130, is fastened around the bearing B of the support shaft 130, the rotary weight 152 along with the extending rod 151 is smoothly rotated by the bearing B around the support shaft 130. Furthermore, the bearing B, fitted over the support shaft 130, is supported on the support shaft 130 by the stop ring, in the same manner as the typical bearing support structure. Therefore, the bearing B is prevented from being undesirably removed from the support shaft 130.

Referring to Figs. 5 and 6, the magnetic material 180, which is inserted in the magnetic material insert hole 152a of the rotary weight 152 rotating around the support shaft 130 in the upper and lower bodies 110a and 110b and is fastened in the magnetic material insert hole 152a by the magnetic material supports 153 extending from the extending rod 151, is rotated around the support shaft 130 between the metal sheets 140 which are respectively in close contact with the inner surfaces of the upper and lower bodies 110a and 110b by the locking units 113 and the locking holes 142.

In each of the metal sheets 140 which is fastened on the inner surface of each of the upper and lower bodies 110a and 110b to allow the rotary weight 152 with the magnetic material 180 to rotate between the metal sheets 140, as shown in Figs. 3, 5 and 6, the plurality of extending parts 143 extend outward from the edge of each of the metal sheets 140 along a track of the rotary weight 152. Therefore, the exerciser exercises different muscle groups as the rotary weight 152 with the magnetic material 180 passes through areas in which the extending parts 143 of the metal sheets 140 are placed, and when the rotary weight 152 passes through areas in which no extending part 143 is placed. Thus, the exercise device 100 of the present invention increases the efficiency of the exercise.

Figs. 7 through 11 are views showing an exercise device 100 having a rotary body 150 and metal sheets 140 different from the first embodiment, according to a second embodiment of the present invention. Referring to Figs. 7 through 11, in the exercise device 100 according to the second embodiment, an extending rod 151 and a rotary weight 152 of the rotary body 150, which receives therein the bearing B, are integrated with each other into a single body.

A magnetic material insert hole 152a is provided on an outer surface of the rotary weight 152, which is integrally coupled to the extending rod 151, to receive therein the magnetic material 180, as shown in Fig. 7. A locking hole 152b is provided around the magnetic material insert hole 152a on each of both sides of rotary weight 152.

Furthermore, as shown in Fig. 8, a magnetic material support 153 is provided on the locking holes 152b, which are provided on the both sides of rotary weight 152, to support the magnetic material 180 which is inserted in the magnetic material insert hole 152a. The magnetic material support 153 has a hook 153a which is provided on each of both ends of the magnetic material support 153 and is inserted into each of the locking holes 152b. Thus, the magnetic material 180 is prevented from being undesirably removed from the magnetic material insert hole 152a during a rotation of the rotary body 150 around the support shaft 130. In addition, as shown in Figs. 7, 10 and 11, a plurality of metal sheets 140 are respectively inserted in locking units 113 which are provided on inner surfaces of main body 110 to provide the plurality of metal sheets 140 at regular intervals around a track of the rotary weight 152 of the rotary body 150 which has the magnetic material 180 and rotates around the support shaft 130. The metal sheet 140 comprises at least two metal sheets 140 which are provided around the track of the rotary weight 152 of the rotary body 150. When the rotary weight 152 is rotated around the support shaft 130, the magnetic material 180 of the rotary weight 152 interacts with the plurality of metal sheets 140.

The operations of the rotary body 150 and the metal sheets 140 are equal to that of the first embodiment. Furthermore, during the rotation of the rotary weight 152 by shaking the exercise device 100 with the grip 111, the exerciser exercises different muscle groups as the rotary weight 152 with the magnetic material 180 passes through areas in which the metal sheet 140 is placed, and when through areas in which no extending part 143 is placed. Thus, the exercise device 100 of the present invention increases efficiency of the exercise.

Industrial Applicability

As described above, the present invention provides an exercise device with simplified internal construction, despite having a structure including therein a magnetic material and a metal sheet to interact with the magnetic material, so that manufacturing process thereof is simplified, thus reducing labor, parts and production costs.

Furthermore, because the exercise device of the present invention has the simple internal structure, a size of the exercise device may be reduced. Thus, the exercise device has a good appearance.

In addition, the magnetic material interacting with the metal sheet while the magnetic material is rotated in the exercise device, thus increasing efficiency of an exercise.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

What is Claimed is:

1. An exercise device, comprising: a main body comprising an upper body and a lower body, with a plurality of body fixing members to separably couple the upper body to the lower body, a shaft insert hole provided on a central portion in the main body, and a grip provided on a predetermined portion of the main body; a support shaft inserted and fastened in the shaft insert hole provided in the main body, with a bearing provided around an intermediate portion of the support shaft; a metal sheet fastened in the main body; and a rotary body to receive therein the bearing, fitted over the support shaft, while extending to a predetermined length, with a magnetic material provided on an extended end of the rotary body to interact with the metal sheet.

2. The exercise device according to claim 1, wherein the metal sheet is in close contact with an inner surface of each of the upper and lower bodies, with a shaft through hole provided on a central portion of the metal sheet to allow the support shaft, fastened in the shaft insert hole, to pass through the shaft through hole.

3. The exercise device according to claim 2, further comprising: a locking unit projected in the main body; a locking hole provided on a predetermined portion of the metal sheet, which is in close contact with the main body, to correspond to the locking unit, so that the metal sheet is fastened in the main body by locking the locking hole of the metal sheet to the locking unit of the main body; and a plurality of extending parts to extend outward from an edge of the metal sheet in radial directions, thus interacting with the magnetic material of the rotary body.

4. The exercise device according to claim 1, wherein the metal sheet comprises at least two metal sheets provided around the rotary body in the main body.

5. The exercise device according to claim 4, further comprising: a plurality of metal locking units provided in the main body, so that the metal sheets are locked in the main body by coupling the upper body to the lower body while each of ends of the metal sheets is inserted into each of the plurality of metal locking units.

6. The exercise device according to claim 1, wherein the rotary body comprises: an extending rod to extend to the predetermined length while receiving the bearing, fitted over the support shaft, in the extending rod; and a rotary weight provided on an extended end of the extending rod, with the magnetic material provided on a predetermined portion of the rotary weight to interact with the metal sheet.

7. The exercise device according to claim 6, wherein the extending rod of the rotary body comprises upper and lower extending rod parts fastened together by a plurality of rod locking units, with a bearing insert hole to receive therein the bearing fitted over the support shaft; and the rotary weight is coupled to the extending rod when the upper extending rod part is fastened to the lower extending rod part by the plurality of rod locking units, with a magnetic material insert hole provided in the rotary weight to receive therein the magnetic material, wherein a magnetic material support is provided on a predetermined position of the extending rod around which the rotary weight is coupled, thus preventing the magnetic material from being removed from the magnetic material insert hole.

8. The exercise device according to claim 6, wherein the rotary body further comprises: a magnetic material insert hole provided on a central portion of an outer surface of the rotary weight to receive therein the magnetic material; a locking hole provided around the magnetic material insert hole on each of both sides of rotary weight; and a magnetic material support, with a hook provided on each of both ends of the magnetic material support and inserted into each of the locking holes, thus preventing the magnetic material from being removed from the magnetic material insert hole due to a centrifugal force of the rotary weight.

9. The exercise device according to claim 1, further comprising: a cushion provided on an outer surface of the grip to allow easy grasp of the grip by a hand and reduce fatigue of the hand.