WO2008099993A1 - Grip strength training device having electricity-generating function - Google Patents

Grip strength training device having electricity-generating function Download PDF

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Publication number
WO2008099993A1
WO2008099993A1 PCT/KR2007/002901 KR2007002901W WO2008099993A1 WO 2008099993 A1 WO2008099993 A1 WO 2008099993A1 KR 2007002901 W KR2007002901 W KR 2007002901W WO 2008099993 A1 WO2008099993 A1 WO 2008099993A1
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WO
WIPO (PCT)
Prior art keywords
electricity
grip strength
training device
hand
strength training
Prior art date
Application number
PCT/KR2007/002901
Other languages
French (fr)
Inventor
Sung Sik Yang
Original Assignee
Hyubwoo Engineering Company
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hyubwoo Engineering Company filed Critical Hyubwoo Engineering Company
Publication of WO2008099993A1 publication Critical patent/WO2008099993A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/02—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using resilient force-resisters
    • A63B21/05—Linearly-compressed elements
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B21/00—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices
    • A63B21/005—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters
    • A63B21/0053—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using alternators or dynamos
    • A63B21/0055—Exercising apparatus for developing or strengthening the muscles or joints of the body by working against a counterforce, with or without measuring devices using electromagnetic or electric force-resisters using alternators or dynamos the produced electric power used as a source for other equipment, e.g. for TVs
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B23/00—Exercising apparatus specially adapted for particular parts of the body
    • A63B23/035—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously
    • A63B23/12—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles
    • A63B23/16—Exercising apparatus specially adapted for particular parts of the body for limbs, i.e. upper or lower limbs, e.g. simultaneously for upper limbs or related muscles, e.g. chest, upper back or shoulder muscles for hands or fingers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H2205/00—Devices for specific parts of the body
    • A61H2205/06—Arms
    • A61H2205/065—Hands
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H39/00—Devices for locating or stimulating specific reflex points of the body for physical therapy, e.g. acupuncture
    • A61H39/04—Devices for pressing such points, e.g. Shiatsu or Acupressure
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2225/00—Miscellaneous features of sport apparatus, devices or equipment
    • A63B2225/74—Miscellaneous features of sport apparatus, devices or equipment with powered illuminating means, e.g. lights

Definitions

  • the present invention relates to a grip strength training device as a kind of exercise equipment that can be effective for increasing a grip strength of a user's hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand, and more particularly, to a grip strength training device having an electricity-generating function that can increase the grip strength of a user's hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand and can also generate electricity therefrom while in use, thereby providing much excitement to him or her.
  • Background Art
  • a grip strength training device is a kind of exercise equipment for improving the grip strength of a user's hand and the muscular power of his or her forearm, which is convenient to handle and carry around and is low in prices. As well known, therefore, the grip strength training device is easily available any time, any place.
  • a grip strength training device having an electricity-generating function that can increase the grip strength of a user's hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand and can also generate electricity therefrom while in use, thereby providing much excitement to him or her.
  • a grip strength training device having an electricity-generating function including: a casing body having first and second casings separable from each other and having different sizes from each other, the first and second casings being fittingly coupled to each other for defining a closed space therein and being moved slidingly with respect to each other whenever a user hand is clenched and opened at a state where the casing body is held by his or her hand; a linear electricity-generating means supported by a spring provided in the casing body and having a plurality of magnets and coils moved linearly together with the first and second casings, such that while the user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, the plurality of magnets and coils conduct linear movements together with the first and second casings, thereby generating a predetermined amount of electricity; and an electricity-charging part disposed to form an electricity circuit together with the linear electricity-generating means, for charging the
  • the linear electricity-generating means includes: a first plate member detachably fixed to the inside of the first casing and having first and second cylindrical protrusions formed protrudedly in opposite directions to each other at the both sides thereof, the first and second cylindrical protrusions having first and second holes formed along the inner peripheries thereof for fixing the first plate member; a second plate member detachably fixed to the inside of the second casing in such a manner as to be disposed facing the first plate member; first and second shaft members disposed protruded longitudinally from the positions on the second plate member facing the first and second cylindrical protrusions in such a manner as to be movably inserted into the first and second holes of the first and second cylindrical protrusions; a coil spring mounted around the outer periphery of each of the first shaft members, for applying a restoring force to the first and second casings upon the movements of the first and second casings; a plurality of coil bobbins each having a coil wound there
  • the first and second holes each has a bush fittingly mounted to the inner periphery thereof, the bush being made of bright bronze.
  • the first and second casings have a concave and convex surface formed on the contacted portion with the user's fingers, the concave and convex surface having a plurality of acupressure protrusions formed thereon.
  • the casing body further includes a light emitting diode for displaying the charging state of the electricity, an outside illuminating lamp, an output terminal, and a manipulating switch for manipulating the light emitting diode, the outside illuminating lamp and the output terminal, the light emitting diode, the outside illuminating lamp and the output terminal being operatively manipulated by means of the manipulating switch connected to the electricity circuit of the electricity-charging part.
  • FIG.1 is a perspective view showing a grip strength training device having an electricity-generating function according to the present invention
  • FIG.2 is a sectional view taken along the line I- Iin FIG.1 ;
  • FIG.3 is a schematically separate perspective view showing the grip strength training device having an electricity-generating function of FIG.1 ;
  • FIG.4 is a separate perspective view showing a reference numeral 100 of FIG.2;
  • FIG.5 is a schematic view showing the arrangements of the magnetic poles of the reference numeral 100;
  • FIG.6 is a circuit view showing a reference numeral 200.
  • FIGS.7a and 7b are views showing the operating states of the grip strength training device having an electricity-generating function according to the present invention. Mode for the Invention
  • the grip strength training device having an electricity-generating function includes a casing body 1 having a size held by a user's hand.
  • the casing body 1 has a first casing 10 and a second casing 20 which define a closed space 31 therein when the second casing 20 is movably fitted to the first casing 10. That is, the casing body 1 has the second casing 20 smaller in the size than the first casing 10, such that an open surface 21 of the second casing 20 is moved and fitted to an open surface 11 of the first casing 10.
  • the first and second casings 10 and 20 have respective concave and convex portions 13 and 23 formed on the outside surfaces corresponding to the open surfaces 11 and 21 thereof.
  • the concave and convex portions 13 and 23 are adapted to prevent a user's fingers placed thereon from slipping thereon by the sweat generated during his or her exercise. Furthermore, it is preferable that a plurality of acupressure protrusions 15 are formed on the convex surfaces of the concave and convex portions 13 and 23.
  • the protrusions 15 give the pressing effects to the user's hand for stimulating the pulse of the user's hand, thereby making the user's body in a good health state.
  • the acupressure protrusions 15 are formed only on the second casing 20, but they may be formed on the first casing 10.
  • the first and second casings 10 and 20 forming the casing body 1 like this are desirably formed of a resin material like plastic.
  • the closed space 31 of the casing body 1 has a linear electricity-generating part 100 disposed therein.
  • the linear electricity-generating part 100 provides an elastic force to the first and second casings 10 and 20, such that while the user's hand holding the casing body 1 is clenched and opened, the second casing 20 is inserted and extracted into/from the first casing 10, thereby generating electricity therefrom and increasing the grip strength of the user's hand.
  • the linear electricity-generating part 100 includes a frame 110 adapted to be fixed to the first casing 10 by means of screw-coupling.
  • the frame 110 has a first plate member 111 as a base member adapted to be fixed to the first casing 10 by means of screw-coupling, and the first plate member 111 has first cylindrical protrusions 115 formed upwardly on first holes 113 formed on the left and right sides thereof and second cylindrical protrusions 119 formed downwardly on second holes 117 formed thereon in such a manner as to be spaced apart from each other between the first holes 113.
  • a first shaft member 121 is fit to each of the first holes 113 and each of the first protrusions 115 in such a manner as to be movable upwardly and downwardly.
  • the first shaft member 121 has a stopper 123 inserted along the lower end thereof, the stopper 123 being adapted to be locked to the first hole 113.
  • the first hole 113 desirably forms a groove (which is not shown in the drawings) at the lower portion thereof, the groove being adapted to fit the stopper 123 therein.
  • the first protrusion 115 serves to guide the upward and downward movements of the first shaft member 121 in a stable manner.
  • the first holes 113 and the first protrusions 115 have a bush 125 fitted therealong, for preventing the inner wall surfaces thereof from being abraded by the friction against the first shaft members 121, the bush 125 being formed of bright bronze.
  • a second plate member 127 is disposed transversely to the top ends of the first shaft members 121. The second plate member 127 is fixed to the second casing 20 by means of screw-coupling, such that the first and second casings 10 and 20 are fitted to each other.
  • a spring 129 is disposed along the first shaft member 121 between the second plate member 127 and the first protrusion 115.
  • the spring 129 gives an elastic force to the linear electricity-generating part 100, thereby generating electricity and providing an exercise effects capable of increasing the grip strength of the user's hand. If the user hand holding the casing body 1 is clenched, the second casing 20 is inserted into the first casing 10, such that the spring 129 is contracted, and contrarily, if the user hand is opened again, the spring 129 is extended to its original state, such that the second casing 20 inserted into the first casing 10 is extracted again from the first casing 10, thereby providing the exercise effects like the existing grip strength training devices. Furthermore, electricity is generated through the above-mentioned operations, which will be discussed later. The second casing 20 is never deviated from the first casing 10 by means of the formation of the stopper 123, when extracted from the first casing 10.
  • a second shaft member 131 that is fixed at the top end thereof to the second plate member 127 is inserted along each of the second holes 117 and each of the second protrusions 119 in such a manner as to be movable upwardly and downwardly.
  • the second shaft member 131 is moved upwardly and downwardly along the second hole 117 and the second protrusion 119 when the second casing 20 is inserted and extracted into/from the first casing 10.
  • the second protrusion 119 serves to guide the upward and downward movements of the second shaft member 131 in a stable manner.
  • the second holes 117 and the second protrusions 119 have a bush 133 fitted therealong for preventing the inner wall surfaces thereof from being abraded by the friction against the second shaft members 131, the bush 133 being formed of bright bronze.
  • a plurality of coil bobbins 135 are disposed through yoke members 139 along the lengths of the second shaft members 131.
  • Each of the plurality of coil bobbins 135 is formed by winding a coil 135b around a generally oval bobbin 135a and is disposed transversely to the second shaft members 131 for encompassing the second shaft members 131.
  • the yoke members 139 serve to cover the coil bobbins 135, thereby forming a magnetic path through which the magnetic flux generated from a plurality of magnets 141 as discussed below flows well and thereby fixing the arrangement of the plurality of magnets 141 to the frame 110.
  • Each of the yoke members 139 has screw holes 139a formed on the corners thereof in such a manner as to be screw-coupled with a screw member 138 screw-coupled to the first plate member 111, such that the coil bobbins 135 are rigidly fixed to the frame 110.
  • Some of the plurality of yoke members 139 are D-shaped for covering the coil bobbins 135.
  • the plurality of magnets 141 are arranged along the second shaft members 131 in the same number as the coil bobbins 135. Each of the plurality of magnets 141 are desirably formed of a permanent magnet. Each of the plurality of magnets 141 is of a rectangular shape having a size insertable into the coil bobbins 135 in such a manner as to be arranged transversely to the second shaft members 131.
  • the second casing 20 is repeatedly inserted and extracted into/from the first casing 10 by clenching and opening the user's hand holding the casing body 1, the plurality of magnets 141 move into and out of the coil bobbins 135, thereby generating electricity on the coils 135b. This will be explained on the basis of the Lenz's law.
  • the electricity is generated having one cycle during which the second casing 20 is one time inserted and extracted into/from the first casing 10.
  • the generated voltage is proportional to the number of coils 135b wound around the bobbin 135a and has a relation with a casing body-pressing speed, that is, a frequency.
  • the magnetic flux is not offset and rather rises in the yoke members 139, such that the electricity-generating efficiency becomes high.
  • the plurality of magnets 141 move only among the yoke members 139, that is, within a distance D in the drawing, one frequency is generated, thereby improving the electricity-generating efficiency.
  • the variations of the voltage having many frequencies are obtained by the movements of a relatively short distance of the plurality of magnets 141, thereby providing necessary electricity.
  • a repulsive force is generated in either vertical or horizontal direction among the plurality of magnets 141, such that the necessary electricity can be obtained by the movements of the relatively short distance thereof.
  • the plurality of magnets 141 are arranged having the magnetic poles of NS-NS-NS, the magnetic fluxes are offset in a part of the yoke members 139, such that the plurality of magnets 141 are at the same state as one magnet.
  • the electricity is generated, which reduces the electricity-generating efficiency.
  • the linear electricity-generating part 100 generates the electricity by the above- discussed operation, and the electricity is collected and charged at an electricity circuit part 200 connected electrically to the linear electricity-generating part 100.
  • the electricity circuit part 200 is not shown in the drawings, but it is mounted on a PCB substrate disposed in the closed space 31.
  • the electricity circuit part 200 includes a rectifier 211 for rectifying the electricity generated from the linear electricity-generating part 100 to form a constant voltage circuit and a charger 213 like a condenser for charging the electricity rectified from the rectifier 211.
  • the electricity circuit part 200 includes illuminating means 223 like a flash for radiating light by using the electricity charged at the charger 213 in accordance with the selection of a switch 221 and flickering means 227 like an LED for displaying the operating and charging states of the linear electricity-generating part 100.
  • the switch 221, the illuminating means 223, an output terminal 225, and the flickering means 227 are disposed in such a manner as to be exposed to the outside from the casing body 1.
  • the flickering means 227 flickers for displaying the flowing state of the electricity, while a user exercises with the casing body 1, such that the user can keep his exercising with much excitement and also can recognize the charging state of the electricity.
  • the output terminal 225 outputs the electricity charged at the charger 213 to the outside, which enables the emergency charging of an MP3 or a cellular phone.
  • the illuminating means 223 makes the use of the electricity charged at the charger
  • a grip strength training device having an electricity-generating function that can generate electricity during a user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, thereby providing much excitement to him or her, and can charge the electricity generated therefrom for charging a small- sized electronic product like a cellular phone or for turning an emergency light on.

Abstract

The present invention relates to a grip strength training device having an electricity-generating function that can increase the grip strength of a user hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand and can also generate electricity therefrom while in use, thereby providing much excitement to him or her. When the user's hand is repeatedly clenched and opened at the state of holding the grip strength training device in his or her hand, a plurality of magnets linearly are moved into and out of a plurality of coil bobbins under the Lenz's law, thereby generating electricity therefrom, and the generated electricity can be also used as emergency power.

Description

Description
GRIP STRENGTH TRAINING DEVICE HAVING ELECTRICITY-GENERATING FUNCTION
Technical Field
[1] The present invention relates to a grip strength training device as a kind of exercise equipment that can be effective for increasing a grip strength of a user's hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand, and more particularly, to a grip strength training device having an electricity-generating function that can increase the grip strength of a user's hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand and can also generate electricity therefrom while in use, thereby providing much excitement to him or her. Background Art
[2] Generally, a grip strength training device is a kind of exercise equipment for improving the grip strength of a user's hand and the muscular power of his or her forearm, which is convenient to handle and carry around and is low in prices. As well known, therefore, the grip strength training device is easily available any time, any place.
[3] Since existing grip strength training devices are used only as exercise equipment, however, a user does not have any excitement during the use. Disclosure of Invention Technical Problem
[4] Accordingly, it is an object of the present invention to provide a grip strength training device having an electricity-generating function that can increase the grip strength of a user's hand by repeatedly clenching and opening his or her hand at the state of holding the grip strength training device in his or her hand and can also generate electricity therefrom while in use, thereby providing much excitement to him or her.
Technical Solution
[5] To achieve the above object, according to the present invention, there is provided a grip strength training device having an electricity-generating function including: a casing body having first and second casings separable from each other and having different sizes from each other, the first and second casings being fittingly coupled to each other for defining a closed space therein and being moved slidingly with respect to each other whenever a user hand is clenched and opened at a state where the casing body is held by his or her hand; a linear electricity-generating means supported by a spring provided in the casing body and having a plurality of magnets and coils moved linearly together with the first and second casings, such that while the user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, the plurality of magnets and coils conduct linear movements together with the first and second casings, thereby generating a predetermined amount of electricity; and an electricity-charging part disposed to form an electricity circuit together with the linear electricity-generating means, for charging the electricity generated from the linear electricity-generating means and supplying the charged electricity to the outside.
[6] According to the present invention, preferably, the linear electricity-generating means includes: a first plate member detachably fixed to the inside of the first casing and having first and second cylindrical protrusions formed protrudedly in opposite directions to each other at the both sides thereof, the first and second cylindrical protrusions having first and second holes formed along the inner peripheries thereof for fixing the first plate member; a second plate member detachably fixed to the inside of the second casing in such a manner as to be disposed facing the first plate member; first and second shaft members disposed protruded longitudinally from the positions on the second plate member facing the first and second cylindrical protrusions in such a manner as to be movably inserted into the first and second holes of the first and second cylindrical protrusions; a coil spring mounted around the outer periphery of each of the first shaft members, for applying a restoring force to the first and second casings upon the movements of the first and second casings; a plurality of coil bobbins each having a coil wound therearound and arranged stackingly on each other along the second shaft members while transversely surrounding the second shaft members, each of the plurality of coil bobbins being covered with a yoke member in such a manner as to be fixed to the second plate member and being opened in upward and downward directions at the inside thereof; and a plurality of magnets having the corresponding number of the plurality of coil bobbins and formed integrally with the second shaft members, the plurality of magnets being moved linearly into the interior of the plurality of coil bobbins together with the second shaft members when the user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, for inducing a movement for generating the electricity from the plurality of coil bobbins.
[7] According to the present invention, preferably, the first and second holes each has a bush fittingly mounted to the inner periphery thereof, the bush being made of bright bronze.
[8] According to the present invention, preferably, the first and second casings have a concave and convex surface formed on the contacted portion with the user's fingers, the concave and convex surface having a plurality of acupressure protrusions formed thereon.
[9] According to the present invention, preferably, the casing body further includes a light emitting diode for displaying the charging state of the electricity, an outside illuminating lamp, an output terminal, and a manipulating switch for manipulating the light emitting diode, the outside illuminating lamp and the output terminal, the light emitting diode, the outside illuminating lamp and the output terminal being operatively manipulated by means of the manipulating switch connected to the electricity circuit of the electricity-charging part. Brief Description of the Drawings
[10] FIG.1 is a perspective view showing a grip strength training device having an electricity-generating function according to the present invention;
[11] FIG.2 is a sectional view taken along the line I- Iin FIG.1 ;
[12] FIG.3 is a schematically separate perspective view showing the grip strength training device having an electricity-generating function of FIG.1 ;
[13] FIG.4 is a separate perspective view showing a reference numeral 100 of FIG.2;
[14] FIG.5 is a schematic view showing the arrangements of the magnetic poles of the reference numeral 100;
[15] FIG.6 is a circuit view showing a reference numeral 200; and
[16] FIGS.7a and 7b are views showing the operating states of the grip strength training device having an electricity-generating function according to the present invention. Mode for the Invention
[17] Hereinafter, an explanation on a grip strength training device having an electricity- generating function according to the present invention will be given with reference to the attached drawings.
[18] As shown, the grip strength training device having an electricity-generating function according to the present invention includes a casing body 1 having a size held by a user's hand. The casing body 1 has a first casing 10 and a second casing 20 which define a closed space 31 therein when the second casing 20 is movably fitted to the first casing 10. That is, the casing body 1 has the second casing 20 smaller in the size than the first casing 10, such that an open surface 21 of the second casing 20 is moved and fitted to an open surface 11 of the first casing 10. Preferably, the first and second casings 10 and 20 have respective concave and convex portions 13 and 23 formed on the outside surfaces corresponding to the open surfaces 11 and 21 thereof. The concave and convex portions 13 and 23 are adapted to prevent a user's fingers placed thereon from slipping thereon by the sweat generated during his or her exercise. Furthermore, it is preferable that a plurality of acupressure protrusions 15 are formed on the convex surfaces of the concave and convex portions 13 and 23. The protrusions 15 give the pressing effects to the user's hand for stimulating the pulse of the user's hand, thereby making the user's body in a good health state. In the drawings, the acupressure protrusions 15 are formed only on the second casing 20, but they may be formed on the first casing 10. The first and second casings 10 and 20 forming the casing body 1 like this are desirably formed of a resin material like plastic.
[19] The closed space 31 of the casing body 1 has a linear electricity-generating part 100 disposed therein. The linear electricity-generating part 100 provides an elastic force to the first and second casings 10 and 20, such that while the user's hand holding the casing body 1 is clenched and opened, the second casing 20 is inserted and extracted into/from the first casing 10, thereby generating electricity therefrom and increasing the grip strength of the user's hand.
[20] Thus, the linear electricity-generating part 100 includes a frame 110 adapted to be fixed to the first casing 10 by means of screw-coupling. The frame 110 has a first plate member 111 as a base member adapted to be fixed to the first casing 10 by means of screw-coupling, and the first plate member 111 has first cylindrical protrusions 115 formed upwardly on first holes 113 formed on the left and right sides thereof and second cylindrical protrusions 119 formed downwardly on second holes 117 formed thereon in such a manner as to be spaced apart from each other between the first holes 113.
[21] Further, a first shaft member 121 is fit to each of the first holes 113 and each of the first protrusions 115 in such a manner as to be movable upwardly and downwardly. The first shaft member 121 has a stopper 123 inserted along the lower end thereof, the stopper 123 being adapted to be locked to the first hole 113. The first hole 113 desirably forms a groove (which is not shown in the drawings) at the lower portion thereof, the groove being adapted to fit the stopper 123 therein. The first protrusion 115 serves to guide the upward and downward movements of the first shaft member 121 in a stable manner. Preferably, the first holes 113 and the first protrusions 115 have a bush 125 fitted therealong, for preventing the inner wall surfaces thereof from being abraded by the friction against the first shaft members 121, the bush 125 being formed of bright bronze. Further, a second plate member 127 is disposed transversely to the top ends of the first shaft members 121. The second plate member 127 is fixed to the second casing 20 by means of screw-coupling, such that the first and second casings 10 and 20 are fitted to each other.
[22] Further, a spring 129 is disposed along the first shaft member 121 between the second plate member 127 and the first protrusion 115. The spring 129 gives an elastic force to the linear electricity-generating part 100, thereby generating electricity and providing an exercise effects capable of increasing the grip strength of the user's hand. If the user hand holding the casing body 1 is clenched, the second casing 20 is inserted into the first casing 10, such that the spring 129 is contracted, and contrarily, if the user hand is opened again, the spring 129 is extended to its original state, such that the second casing 20 inserted into the first casing 10 is extracted again from the first casing 10, thereby providing the exercise effects like the existing grip strength training devices. Furthermore, electricity is generated through the above-mentioned operations, which will be discussed later. The second casing 20 is never deviated from the first casing 10 by means of the formation of the stopper 123, when extracted from the first casing 10.
[23] On the other hand, a second shaft member 131 that is fixed at the top end thereof to the second plate member 127 is inserted along each of the second holes 117 and each of the second protrusions 119 in such a manner as to be movable upwardly and downwardly. The second shaft member 131 is moved upwardly and downwardly along the second hole 117 and the second protrusion 119 when the second casing 20 is inserted and extracted into/from the first casing 10. The second protrusion 119 serves to guide the upward and downward movements of the second shaft member 131 in a stable manner. Preferably, the second holes 117 and the second protrusions 119 have a bush 133 fitted therealong for preventing the inner wall surfaces thereof from being abraded by the friction against the second shaft members 131, the bush 133 being formed of bright bronze.
[24] Further, a plurality of coil bobbins 135 are disposed through yoke members 139 along the lengths of the second shaft members 131. Each of the plurality of coil bobbins 135 is formed by winding a coil 135b around a generally oval bobbin 135a and is disposed transversely to the second shaft members 131 for encompassing the second shaft members 131. The yoke members 139 serve to cover the coil bobbins 135, thereby forming a magnetic path through which the magnetic flux generated from a plurality of magnets 141 as discussed below flows well and thereby fixing the arrangement of the plurality of magnets 141 to the frame 110. Each of the yoke members 139 has screw holes 139a formed on the corners thereof in such a manner as to be screw-coupled with a screw member 138 screw-coupled to the first plate member 111, such that the coil bobbins 135 are rigidly fixed to the frame 110. Some of the plurality of yoke members 139 are D-shaped for covering the coil bobbins 135.
[25] The plurality of magnets 141 are arranged along the second shaft members 131 in the same number as the coil bobbins 135. Each of the plurality of magnets 141 are desirably formed of a permanent magnet. Each of the plurality of magnets 141 is of a rectangular shape having a size insertable into the coil bobbins 135 in such a manner as to be arranged transversely to the second shaft members 131. When the second casing 20 is repeatedly inserted and extracted into/from the first casing 10 by clenching and opening the user's hand holding the casing body 1, the plurality of magnets 141 move into and out of the coil bobbins 135, thereby generating electricity on the coils 135b. This will be explained on the basis of the Lenz's law.
[26] As shown in FIGS.7a and 7b, namely, if the plurality of magnets 141 that are moved out of the coil bobbins 135 are moved into the coil bobbins 135 by clenching the user's hand holding the casing body 1, induction current flows along the coils 135b for making a magnetic field directed upwardly, which interferes with the magnetic field being strong at the bottom side thereof, and contrarily, if the plurality of magnets 141 that are moved into the coil bobbins 135 are moved out of the coil bobbins 135 by opening the user's hand holding the casing body 1, the induction current flows along the coils 135b for making a magnetic field directed downwardly, which interferes with the magnetic field being weak at the top side thereof, thereby generating electricity from the coils 135b. The electricity is generated having one cycle during which the second casing 20 is one time inserted and extracted into/from the first casing 10. The generated voltage is proportional to the number of coils 135b wound around the bobbin 135a and has a relation with a casing body-pressing speed, that is, a frequency.
[27] As shown in FIG.5, especially, if the plurality of magnets 141 are arranged having the magnetic poles of NS-SN-NS, the magnetic flux is not offset and rather rises in the yoke members 139, such that the electricity-generating efficiency becomes high. The plurality of magnets 141 move only among the yoke members 139, that is, within a distance D in the drawing, one frequency is generated, thereby improving the electricity-generating efficiency. The variations of the voltage having many frequencies are obtained by the movements of a relatively short distance of the plurality of magnets 141, thereby providing necessary electricity. Also, a repulsive force is generated in either vertical or horizontal direction among the plurality of magnets 141, such that the necessary electricity can be obtained by the movements of the relatively short distance thereof. If the plurality of magnets 141 are arranged having the magnetic poles of NS-NS-NS, the magnetic fluxes are offset in a part of the yoke members 139, such that the plurality of magnets 141 are at the same state as one magnet. Thus, only when the plurality of magnets 141 move from the uppermost yoke member 139 to the lowermost yoke member 139, the electricity is generated, which reduces the electricity-generating efficiency.
[28] The linear electricity-generating part 100 generates the electricity by the above- discussed operation, and the electricity is collected and charged at an electricity circuit part 200 connected electrically to the linear electricity-generating part 100. The electricity circuit part 200 is not shown in the drawings, but it is mounted on a PCB substrate disposed in the closed space 31. [29] As shown in FIG.6, that is, the electricity circuit part 200 includes a rectifier 211 for rectifying the electricity generated from the linear electricity-generating part 100 to form a constant voltage circuit and a charger 213 like a condenser for charging the electricity rectified from the rectifier 211. At this time, the electricity circuit part 200 includes illuminating means 223 like a flash for radiating light by using the electricity charged at the charger 213 in accordance with the selection of a switch 221 and flickering means 227 like an LED for displaying the operating and charging states of the linear electricity-generating part 100. The switch 221, the illuminating means 223, an output terminal 225, and the flickering means 227 are disposed in such a manner as to be exposed to the outside from the casing body 1.
[30] The flickering means 227 flickers for displaying the flowing state of the electricity, while a user exercises with the casing body 1, such that the user can keep his exercising with much excitement and also can recognize the charging state of the electricity.
[31] The output terminal 225 outputs the electricity charged at the charger 213 to the outside, which enables the emergency charging of an MP3 or a cellular phone.
[32] The illuminating means 223 makes the use of the electricity charged at the charger
213 for radiating light, so that it can be used at a dark place.
[33] [Advantageous Effects]
[34] As described above, there is provided a grip strength training device having an electricity-generating function that can generate electricity during a user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, thereby providing much excitement to him or her, and can charge the electricity generated therefrom for charging a small- sized electronic product like a cellular phone or for turning an emergency light on.

Claims

Claims
[1] A grip strength training device having an electricity-generating function comprising: a casing body having first and second casings separable from each other and having different sizes from each other, the first and second casings being fittingly coupled to each other for defining a closed space therein and being moved slidingly with respect to each other whenever a user hand is clenched and opened at a state where the casing body is held by his or her hand; a linear electricity-generating means supported by a spring provided in the casing body and having a plurality of magnets and coils moved linearly together with the first and second casings, such that while the user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, the plurality of magnets and coils conduct linear movements together with the first and second casings, thereby generating a predetermined amount of electricity; and an electricity-charging part disposed to form an electricity circuit together with the linear electricity-generating means, for charging the electricity generated from the linear electricity-generating means and supplying the charged electricity to the outside.
[2] A grip strength training device having an electricity-generating function according to claim 1, wherein the linear electricity-generating means comprises: a first plate member detachably fixed to the inside of the first casing and having first and second cylindrical protrusions formed protrudedly in opposite directions to each other at the both sides thereof, the first and second cylindrical protrusions having first and second holes formed along the inner peripheries thereof for fixing the first plate member; a second plate member detachably fixed to the inside of the second casing in such a manner as to be disposed facing the first plate member; first and second shaft members disposed protruded longitudinally from the positions of the second plate member facing the first and second cylindrical protrusions in such a manner as to be movably inserted into the first and second holes of the first and second cylindrical protrusions; a coil spring mounted around the outer periphery of each of the first shaft members, for applying a restoring force to the first and second casings upon the movements of the first and second casings; a plurality of coil bobbins each having a coil wound therearound and arranged stackingly on each other along the second shaft members while transversely surrounding the second shaft members, each of the plurality of coil bobbins being covered with a yoke member in such a manner as to be fixed to the second plate member and being opened in upward a plurality of magnets having the corresponding number of the plurality of coil bobbins and formed integrally with the second shaft members, the plurality of magnets being moved linearly into the interior of the plurality of coil bobbins together with the second shaft members when the user repeatedly clenches and opens his or her hand at the state of holding the grip strength training device with his or her hand, for inducing a movement for generating the electricity from the plurality of coil bobbins.
[3] A grip strength training device having an electricity-generating function according to claim 2, wherein the first and second holes each has a bush fittingly mounted to the inner periphery thereof, the bush being made of bright bronze.
[4] A grip strength training device having an electricity-generating function according to claim 1, wherein the first and second casings have a concave and convex surface formed on the contacted portion with the user's fingers, the concave and convex surface having a plurality of acupressure protrusions formed thereon.
[5] A grip strength training device having an electricity-generating function according to claim 1, wherein the casing body further comprises a light emitting diode for displaying the charging state of the electricity, an outside illuminating lamp, an output terminal, and a manipulating switch for manipulating the light emitting diode, the outside illuminating lamp and the output terminal, the light emitting diode, the outside illuminating lamp and the output terminal being op- eratively manipulated by means of the manipulating switch connected to the electricity circuit of the electricity-charging part.
PCT/KR2007/002901 2007-02-14 2007-06-15 Grip strength training device having electricity-generating function WO2008099993A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020070015362A KR100812376B1 (en) 2007-02-14 2007-02-14 Grip having function for generating electricity
KR10-2007-0015362 2007-02-14

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WO2008099993A1 true WO2008099993A1 (en) 2008-08-21

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WO (1) WO2008099993A1 (en)

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Publication number Priority date Publication date Assignee Title
CN113318376A (en) * 2021-06-08 2021-08-31 西安市红会医院 Grip strength measuring and training composite device

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Publication number Priority date Publication date Assignee Title
KR101828524B1 (en) * 2016-09-06 2018-02-12 안종현 Hand grip for baseball player

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JPH08336616A (en) * 1995-06-12 1996-12-24 Inoac Corp Hand finger training tool
JPH1176456A (en) * 1997-09-13 1999-03-23 Hasegawa Kagaku Kenkyusho:Kk Finger training apparatus with display
KR20060066183A (en) * 2004-12-13 2006-06-16 노상범 Hand exercisers generator

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Publication number Priority date Publication date Assignee Title
JPH08336616A (en) * 1995-06-12 1996-12-24 Inoac Corp Hand finger training tool
JPH1176456A (en) * 1997-09-13 1999-03-23 Hasegawa Kagaku Kenkyusho:Kk Finger training apparatus with display
KR20060066183A (en) * 2004-12-13 2006-06-16 노상범 Hand exercisers generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113318376A (en) * 2021-06-08 2021-08-31 西安市红会医院 Grip strength measuring and training composite device
CN113318376B (en) * 2021-06-08 2022-11-18 西安市红会医院 Grip strength measuring and training composite device

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