US20140155226A1 - Low noise wrist strength training ball - Google Patents

Low noise wrist strength training ball Download PDF

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Publication number
US20140155226A1
US20140155226A1 US13/791,521 US201313791521A US2014155226A1 US 20140155226 A1 US20140155226 A1 US 20140155226A1 US 201313791521 A US201313791521 A US 201313791521A US 2014155226 A1 US2014155226 A1 US 2014155226A1
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US
United States
Prior art keywords
sleeve ring
case
protruding shafts
strength training
low noise
Prior art date
Legal status (The legal status 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 status listed.)
Abandoned
Application number
US13/791,521
Other languages
English (en)
Inventor
Pei-Sung Chuang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nano Second Technology Co Ltd
Original Assignee
Nano Second Technology Co Ltd
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 Nano Second Technology Co Ltd filed Critical Nano Second Technology Co Ltd
Assigned to NANO-SECOND TECHNOLOGY CO., LTD. reassignment NANO-SECOND TECHNOLOGY CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHUANG, PEI-SUNG
Publication of US20140155226A1 publication Critical patent/US20140155226A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • A63B23/14—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 wrist joints
    • 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
    • A63B21/0004—Exercising devices moving as a whole during exercise
    • 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
    • A63B21/22—Resisting devices with rotary bodies
    • 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
    • A63B21/22—Resisting devices with rotary bodies
    • A63B21/222—Resisting devices with rotary bodies by overcoming gyroscopic forces, e.g. by turning the spin axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
    • A63B71/0054—Features for injury prevention on an apparatus, e.g. shock absorbers
    • A63B2071/0063—Shock absorbers
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/08—Characteristics of used materials magnetic
    • 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
    • A63B2225/30—Maintenance

Definitions

  • the disclosure relates to a wrist strength training ball, and more particularly to a low noise wrist strength training ball.
  • a wrist strength training ball that applies gyroscopic principles and mechanical means can be used to make the wrist strength training ball rotate. Users can hold the wrist strength training ball in the palm of their hand and rotate the wrist strength training ball. A large rotating force is produced by the effects of centrifugal force and inertia force. Therefore, the hand and shoulder muscles can be trained by the rotating force.
  • the starting device is, for example, a pull cord, a rack or an electrical device.
  • the pull cord, the rack or the electrical device are all starting devices independently disposed outside of the wrist strength training ball. The users will not be able to operate the wrist strength training balls when the starting devices are lost. Therefore, some manufacturers install the starting device (e.g. elastic mechanism) inside the wrist strength training ball for the convenience of users to use the wrist strength training ball.
  • the changes on the structure and disposition of the wrist strength training ball will cause the wrist strength training ball to produce unexpected noise during operation.
  • the users may give up on muscle training because of the unexpected noise.
  • it will be less desirable for the users to purchase the wrist strength training ball.
  • An embodiment of the disclosure provides a low noise wrist strength training ball comprising a case, a sleeve ring, a rotary body and a magnetic element.
  • the sleeve ring is slidably disposed inside the case and adapted for sliding relative to the case.
  • the rotary body comprises two protruding shafts opposite to each other.
  • the two protruding shafts are pivotally connected to the sleeve ring and are adapted for rotating relative to the sleeve ring.
  • the magnetic element is disposed in the sleeve ring and is corresponding to one of the two protruding shafts.
  • the magnetic element is adapted for magnetically attracting the one of the protruding shafts to press against the sleeve ring.
  • a low noise wrist strength training ball comprising a case, a sleeve ring, a rotary body and a shock damping component.
  • the sleeve ring is slidably disposed inside the case and sliding relative to the case.
  • the rotary body comprises two protruding shafts opposite to each other.
  • the two protruding shafts are pivotally connected to the sleeve ring and are adapted for rotating relative to the sleeve ring.
  • the shock damping component is disposed on the sleeve ring and corresponds to one of the two protruding shafts. The shock damping component is pressed against the one of the protruding shafts.
  • a low noise wrist strength training ball comprising a case, a sleeve ring, and a rotary body.
  • the case comprises a first case portion, a second case portion, a first concave portion and a second concave portion.
  • the first concave portion and the second concave portion are disposed on the circumference of the first case portion and the circumference of the second case portion, respectively.
  • the second case portion is installed on the first case portion for forming an accommodating space together.
  • the first concave portion and the second concave portion form an annular groove together.
  • the annular groove has a contact surface.
  • Each of the first concave portion and the second concave portion has an inner surface and an outer surface opposite to each other.
  • the contact surface is connected to the inner surfaces.
  • the sleeve ring is slidably disposed inside the annular groove and is adapted for sliding relative to the case.
  • the rotary body comprises two protruding shafts opposite to each other.
  • the two protruding shafts are pivotally connected to the sleeve ring and are adapted for rotating relative to the sleeve ring.
  • the two protruding shafts are respectively attached on the contact surface. Ends of the two protruding shafts are disposed between the inner surfaces and the outer surfaces respectively.
  • FIG. 1 is a perspective view of a low noise wrist strength training ball with an opened first case portion according to a first embodiment of the disclosure
  • FIG. 2 is an exploded perspective view of FIG. 1 ;
  • FIG. 3 is a sectional view of the first case portion in FIG. 1 installed in a second case portion;
  • FIG. 4 is a partial enlarged sectional view of FIG. 3 ;
  • FIG. 5 is a sectional view of the low noise wrist strength training ball according to a second embodiment of the disclosure.
  • FIG. 6 is a partial enlarged sectional view of FIG. 5 .
  • FIG. 1 is a perspective view of a low noise wrist strength training ball with an opened first case portion according to a first embodiment of the disclosure and FIG. 2 is an exploded perspective view of FIG. 1 .
  • a low noise wrist strength training ball 10 in this embodiment comprises a case 100 , a sleeve ring 200 , a rotary body 300 and a magnetic element 400 .
  • the sleeve ring 200 is slidably disposed inside the case 100 and is adapted for sliding relative to the case 100 .
  • the rotary body 300 comprises two protruding shafts 310 that are disposed oppositely to each other.
  • the two protruding shafts 310 are pivotally connected to the sleeve ring 200 and are adapted for rotating relative to the sleeve ring 200 .
  • the magnetic element 400 is a magnet.
  • the magnetic element 400 is disposed in the sleeve ring 200 and corresponds to one of the two protruding shafts 310 .
  • the protruding shaft 310 is adapted for being magnetically attracted by the magnetic element 400 to press against the sleeve ring 200 . Thereby, noise produced by the low noise wrist strength training ball 10 during usage can be reduced or eliminated.
  • FIG. 3 is a sectional view of a first case portion installed in a second case portion in FIG. 1 and FIG. 4 is a partial enlarged sectional view of FIG. 3 .
  • the case 100 comprises a first case portion 110 and a second case portion 120 .
  • a first concave portion 111 and a second concave portion 121 are disposed on the circumference of the first case portion 110 and the circumference of the second case portion 120 , respectively.
  • the second case portion 120 is installed in the first case portion 110 to form an accommodating space 130 together.
  • the first concave portion 111 and the second concave portion 121 are disposed in an annular groove 140 .
  • the annular groove 140 is disposed on an inner wall surface of the case 100 forming the accommodating space 130 .
  • the annular groove 140 has two contact surfaces 141 opposite to each other.
  • the two contact surfaces 141 are disposed on the first case portion 110 and the second case portion 120 , respectively.
  • the first concave portion 111 has an inner surface 112 and an outer surface 113 relatively close to or farther away from the rotary body 300 .
  • the contact surface 141 of the first case portion 110 is connected to the inner surface 112 .
  • the second concave portion 121 has an inner surface 122 and an outer surface 123 relatively close to or further away from the rotary body 300 .
  • the contact surface 141 of the second case portion 120 is connected to the inner surface 122 .
  • the rotary body 300 becomes inclined when it rotates.
  • an end of one of the two protruding shafts 310 is in point-to-point contact with the contact surface 141 , of the first case portion 110 , when it is pressed against the contact surface 141 of the first case portion 110 .
  • an end of the other protruding shaft 310 is in point-to-point contact with the contact surface 141 of the second case portion 120 when it is pressed against the contact surface 141 of the second case portion 120 .
  • the two contact surfaces 141 may be worn out easily, which affects the rotation of the rotary body 300 .
  • the contact surfaces 141 of this embodiment are also inclined.
  • the degree of inclination of the contact surfaces 141 is roughly equal to that of the rotary body 300 during rotation.
  • the ends of the two protruding shafts 310 are suspended between the inner surfaces 112 and 122 as well as the outer surfaces 113 and 123 , respectively, to cause the contact surfaces 141 and the protruding shafts 310 to be parallel to each other, and to cause the surfaces of the middle sections of the two protruding shafts 310 to be attached to the contact surfaces 141 in order to increase the contact areas between the two protruding shafts 310 and the contact surfaces 141 .
  • the damages of the annular groove 140 caused by the protruding shafts 310 during the rotation of the rotary body 300 can be reduced, and the life span of the low noise wrist strength training ball 10 can be prolonged.
  • the technical characteristics of the first case portion 110 and the second case portion 120 respectively, comprising the first concave portion 111 and the second concave portion 121 should not be limited to being disposed in the low noise wrist strength training ball 10 with the magnetic element 400 .
  • the first concave portion 111 and the second concave portion 121 are also be disposed in wrist strength training balls without the magnetic element 400 .
  • the surfaces of the two protruding shafts 310 contacting with the contact surfaces 141 can make the connection between the protruding shafts 310 and the case 100 to be steadier, and the noise produced by the low noise wrist strength training ball 10 during usage can be reduced or eliminated.
  • the sleeve ring 200 is disposed in the annular groove 140 in order so the sleeve ring 200 can slide relative to the case 100 .
  • the sleeve ring 200 comprises two pivotal portions 210 opposite to each other. Each of the pivotal portions 210 has a through hole 211 , and the two through holes 211 have the same axis. One of the two pivotal portions 210 has an accommodating groove 212 .
  • the rotary body 300 is disposed inside the accommodating space 130 , and the annular groove 140 surrounds the rotary body 300 .
  • the two protruding shafts 310 penetrate through the two through holes 211 , respectively and press against the annular groove 140 such that the rotary body 300 is adapted for driving the sleeve ring 200 to rotate and slide relative to the case 100 .
  • the rotary body 300 has a hollow groove 320 , and one of the two protruding shafts 310 is disposed inside the hollow groove 320 .
  • the sleeve ring 200 is made of plastic, and therefore the sleeve ring 200 is slightly elastic and can absorb shock.
  • the low noise wrist strength training ball 10 further comprises an elastic device 500 .
  • a side of the elastic device 500 is fixed inside the hollow groove 320 of the rotary body 300 , and another side of the elastic device 500 is fixed on an inner circumference of the sleeve ring 200 facing the hollow groove 320 .
  • the above-mentioned accommodating groove 212 is disposed in the pivotal portion 210 which is assembled with the elastic device 500 .
  • the magnetic element 400 is disposed in the accommodating groove 212 .
  • the magnetic element 400 is adapted for magnetically attracting the one of the protruding shafts 310 close to the elastic device 500 to press against an inner wall surface of the one of the through holes 211 close to the elastic device 500 . Therefore, the shock of the protruding shaft 310 can be suppressed by the pivotal portion 210 , and an intensity of the noise produced by the low noise wrist strength training ball 10 during usage can be reduced as well.
  • shock damping and noise reduction will be described together hereinafter.
  • the low noise wrist strength training ball 10 in this embodiment comprises the elastic device 500
  • the hollow groove 320 has to be formed in the rotary body 300 such that the elastic device 500 has the space to be disposed in the hollow groove 320 .
  • a supporting strength of the protruding shaft 320 of the rotary body 300 , disposed in the hollow groove 320 becomes weaker and the low noise wrist strength training ball 10 will produce shock easily during usage.
  • a suspension length D1 of the protruding shaft 310 , disposed in the hollow groove 320 is far longer than a suspension length D2 of the other protruding shaft 310 . Therefore, the protruding shaft 310 , disposed in the hollow groove 320 , will produce shock more easily when it rotates relative to the annular groove 140 . Furthermore, because the hollow groove 320 has the effects similar to a resonating chamber, the noise produced by the sway and the shock of the protruding shaft 310 , disposed in the hollow groove 320 , will be magnified. As a result, the users will be affected easily and the users will give up on their muscle training.
  • the magnetic element 400 of this embodiment is disposed inside the accommodating groove 212 of the pivotal portion 210 close to the hollow groove 320 ; when the protruding shaft 310 , disposed in the hollow groove 320 , starts to sway or shock, the magnetic element 400 will magnetically attract the protruding shaft 310 to press against the inner wall surface of the corresponding through hole 211 on the sleeve ring 200 . Therefore, the shock of the protruding shaft 310 can be suppressed by the shock damping capability of the sleeve ring 200 , and an intensity of the noise produced by the low noise wrist strength training ball 10 during usage can be reduced. In practical tests, a noise level of the operating low noise wrist strength training ball 10 of this embodiment is 61 decibels, which is a level humans feel comfortable with.
  • FIG. 5 is a sectional view of the low noise wrist strength training ball according to a second embodiment of the disclosure.
  • FIG. 6 is a partial enlarged sectional view of FIG. 5 .
  • the low noise wrist strength training ball 10 of this embodiment comprises the case 100 , the sleeve ring 200 , the rotary body 300 and a shock damping component 600 .
  • the sleeve ring 200 is slidably disposed inside the case 100 and is adapted for sliding relative to the case 100 .
  • the rotary body 300 comprises the two protruding shafts 310 disposed oppositely to each other.
  • the two protruding shafts 310 are pivotally connected to the sleeve ring 200 and are adapted for rotating relative to the sleeve ring 200 .
  • the shock damping component 600 is disposed in the sleeve ring 200 and corresponds to one of the two protruding shafts 310 .
  • the shock damping component 600 is pressed against the protruding shaft 310 for suppressing the shock of the protruding shaft 310 . Therefore, the noise produced by the low noise wrist strength training ball 10 during usage can be reduced or eliminated.
  • the sleeve ring 200 comprises the two pivotal portions 210 opposite to each other.
  • the two protruding shafts 310 are pivotally connected to the two pivotal portions 210 respectively such that the rotary body 300 is adapted for rotating relative to the sleeve ring 200 .
  • the low noise wrist strength training ball 10 further comprises the elastic device 500 .
  • the rotary body 300 has the hollow groove 320 .
  • One end of the elastic device 500 is fixed inside the hollow groove 320 , and the other end of the elastic device 500 is fixed on one of the two pivotal portions 210 of the sleeve ring 200 .
  • the pivotal portion 210 assembled with the elastic device 500 , has the accommodating groove 212 .
  • the accommodating groove 212 is close to the pivotal portion 210 which is assembled with the elastic device 500 .
  • the shock damping component 600 is disposed in the accommodating groove 212 such that the shock damping component 600 is adapted for being pressed against the protruding shaft 310 which is close to the elastic device 500 .
  • the shock damping component 600 comprises an elastic element 610 and a shock absorbing body 620 .
  • the elastic element 610 and the shock absorbing body 620 are disposed in the accommodating groove 212 .
  • the shock absorbing body 620 is closer to the protruding shaft 310 than the elastic element 610 .
  • the shock absorbing body 620 is, for example, made of materials such as rubber or plastic with certain elasticity. Normally, the elastic element 610 causes the shock absorbing body 620 to move toward the protruding shaft 310 for pressing against the protruding shaft 310 close to the elastic device 500 such that the shock absorbing body 620 may suppress the shock of the protruding shaft 310 .
  • the magnetic element is disposed in the pivotal portion close to the elastic device, and the protruding shaft is magnetically attracted by the magnetic element to press against the sleeve ring, the shock produced by the operation of the protruding shaft can be suppressed by the shock absorbing capability of the sleeve ring. Therefore, unexpected noise is prevented from being produced by the low noise wrist strength training ball.
  • the extending directions of the contact surfaces and the two protruding shafts are parallel to each other, and the ends of the two protruding shafts are disposed between the inner surfaces and the outer surfaces respectively. Therefore, because the ends of the two protruding shafts are suspended between the inner surfaces and the outer surfaces without contacting with the contact surfaces, the surfaces of the two protruding shafts can be in contact with the contact surfaces, instead of in a point-to-point contact, so as to increase the contact areas between the two protruding shafts and the contact surfaces. Therefore, the damages of the annular groove caused by the protruding shafts during the rotation of the rotary body can be reduced, and the life span of the low noise wrist strength training ball can be prolonged. Additionally, the surface contact between the two protruding shafts and the contact surfaces can make the connection between the protruding shafts and the case to be steadier, and the noise produced by the low noise wrist strength training ball during usage can be reduced or eliminated.
  • the shock absorbing body of the shock damping component can be pressed against the protruding shaft so as to suppress the shock produced by the rotation of the protruding shaft and to prevent unexpected noise from being produced by the low noise wrist strength training ball.

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  • Health & Medical Sciences (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Rehabilitation Tools (AREA)
  • Pivots And Pivotal Connections (AREA)
US13/791,521 2012-12-05 2013-03-08 Low noise wrist strength training ball Abandoned US20140155226A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TW101223608U TWM451997U (zh) 2012-12-05 2012-12-05 低噪型腕力訓練球
TW101223608 2012-12-05

Publications (1)

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US20140155226A1 true US20140155226A1 (en) 2014-06-05

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Application Number Title Priority Date Filing Date
US13/791,521 Abandoned US20140155226A1 (en) 2012-12-05 2013-03-08 Low noise wrist strength training ball

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US (1) US20140155226A1 (zh)
GB (1) GB2508678B (zh)
TW (1) TWM451997U (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140200115A1 (en) * 2013-01-11 2014-07-17 Nano-Second Technology Co., Ltd. Wrist training ball and information display and detecting module thereof
US9463354B2 (en) 2013-06-25 2016-10-11 Nano-Second Technology Co., Ltd. Wrist exerciser having a protective structure
US20170361146A1 (en) * 2016-06-21 2017-12-21 Christian Malcolm Ergonomic held weight unit and method of use
CN114247104A (zh) * 2021-11-30 2022-03-29 上海铼锶信息技术有限公司 一种使用安全的腕力球
US20230146190A1 (en) * 2021-07-15 2023-05-11 Chau Ern Koh Medicine ball and method of operating thereof

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US3726146A (en) * 1971-04-12 1973-04-10 Wornoto Inc Gyroscopic device
US5800311A (en) * 1997-07-25 1998-09-01 Chuang; P. S. Wrist exerciser
US6053846A (en) * 1999-07-28 2000-04-25 Lin; Chien-Der Wrist exerciser
US6186914B1 (en) * 1998-12-31 2001-02-13 Chien-Der Lin Wrist ball
US6623405B2 (en) * 2002-01-22 2003-09-23 Yun Yu Chuang Wrist exerciser with message display
US6629908B2 (en) * 2000-05-09 2003-10-07 Peter Winston Hamady Precessional apparatus and method thereof
US6770012B2 (en) * 2002-09-06 2004-08-03 Hsiu-Min Kuo Self-generating wrist ball
US20050101440A1 (en) * 2003-11-12 2005-05-12 Chuang Yun Y. Balance-enhancing and vibration-reducing device for wrist exerciser
US7033304B2 (en) * 2002-09-27 2006-04-25 Yun Yu Chuang Actuating device of wrist exerciser
US7077786B2 (en) * 2004-08-24 2006-07-18 Yun Yu Chuang Rotor of wrist exerciser
US7086990B2 (en) * 2003-11-18 2006-08-08 Yun Yu Chuang Data transmission device of wrist exerciser
US7101315B2 (en) * 2003-11-26 2006-09-05 Yun Yu Chuang Wrist exerciser having display and transmission device
US20070207899A1 (en) * 2006-03-06 2007-09-06 Chuang Yun Y Revolution counter for wrist exerciser
US7381155B2 (en) * 2006-07-31 2008-06-03 Yun Yu Chuang Wrist exerciser with auxiliary starting force
US7563210B2 (en) * 2007-03-27 2009-07-21 Tom Smith Gyroscopic total exerciser
US7846066B1 (en) * 2010-03-11 2010-12-07 Nano-Second Technology Co., Ltd. Light-emitting control circuit and wrist training ball using the same
US7935035B2 (en) * 2007-03-27 2011-05-03 Tom Smith Gyroscopic exerciser
US20120302407A1 (en) * 2009-12-10 2012-11-29 Movea Gyroscopic exercise ball

Patent Citations (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3726146A (en) * 1971-04-12 1973-04-10 Wornoto Inc Gyroscopic device
US5800311A (en) * 1997-07-25 1998-09-01 Chuang; P. S. Wrist exerciser
US6186914B1 (en) * 1998-12-31 2001-02-13 Chien-Der Lin Wrist ball
US6053846A (en) * 1999-07-28 2000-04-25 Lin; Chien-Der Wrist exerciser
US6629908B2 (en) * 2000-05-09 2003-10-07 Peter Winston Hamady Precessional apparatus and method thereof
US6623405B2 (en) * 2002-01-22 2003-09-23 Yun Yu Chuang Wrist exerciser with message display
US6770012B2 (en) * 2002-09-06 2004-08-03 Hsiu-Min Kuo Self-generating wrist ball
US7033304B2 (en) * 2002-09-27 2006-04-25 Yun Yu Chuang Actuating device of wrist exerciser
US20050101440A1 (en) * 2003-11-12 2005-05-12 Chuang Yun Y. Balance-enhancing and vibration-reducing device for wrist exerciser
US7086990B2 (en) * 2003-11-18 2006-08-08 Yun Yu Chuang Data transmission device of wrist exerciser
US7101315B2 (en) * 2003-11-26 2006-09-05 Yun Yu Chuang Wrist exerciser having display and transmission device
US7077786B2 (en) * 2004-08-24 2006-07-18 Yun Yu Chuang Rotor of wrist exerciser
US20070207899A1 (en) * 2006-03-06 2007-09-06 Chuang Yun Y Revolution counter for wrist exerciser
US7381155B2 (en) * 2006-07-31 2008-06-03 Yun Yu Chuang Wrist exerciser with auxiliary starting force
US7563210B2 (en) * 2007-03-27 2009-07-21 Tom Smith Gyroscopic total exerciser
US7935035B2 (en) * 2007-03-27 2011-05-03 Tom Smith Gyroscopic exerciser
US20120302407A1 (en) * 2009-12-10 2012-11-29 Movea Gyroscopic exercise ball
US7846066B1 (en) * 2010-03-11 2010-12-07 Nano-Second Technology Co., Ltd. Light-emitting control circuit and wrist training ball using the same

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140200115A1 (en) * 2013-01-11 2014-07-17 Nano-Second Technology Co., Ltd. Wrist training ball and information display and detecting module thereof
US9463354B2 (en) 2013-06-25 2016-10-11 Nano-Second Technology Co., Ltd. Wrist exerciser having a protective structure
US9782623B2 (en) 2013-06-25 2017-10-10 Nano-Second Technology Co., Ltd. Wrist exerciser having a protective structure
US20170361146A1 (en) * 2016-06-21 2017-12-21 Christian Malcolm Ergonomic held weight unit and method of use
US10223557B2 (en) * 2016-06-21 2019-03-05 Christian Malcolm Ergonomic held weight unit
US20230146190A1 (en) * 2021-07-15 2023-05-11 Chau Ern Koh Medicine ball and method of operating thereof
US11717716B2 (en) * 2021-07-15 2023-08-08 Chau Ern Koh Medicine ball and method of operating thereof
CN114247104A (zh) * 2021-11-30 2022-03-29 上海铼锶信息技术有限公司 一种使用安全的腕力球

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Publication number Publication date
GB2508678B (en) 2014-11-19
GB2508678A (en) 2014-06-11
TWM451997U (zh) 2013-05-01
GB201304923D0 (en) 2013-05-01

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