KR200453244Y1 - Wrist exerciser with auxiliary starting force - Google Patents

Abstract

The wrist exerciser includes an upper casing member and a lower casing member mounted to each other to surround the rotor therebetween. The upper casing member has an upper opening for exposing a portion of the rotor. The rotor has both ends mounted with two opposite axes, respectively. The shaft is rotatably connected to the outer ring. The outer ring includes an elastic device. On the side of the rotor facing the elastic device, a movable catching device detachably attached to the elastic device and optionally operatively connected is mounted. Thus, when the rotor starts to rotate or is towed by contact with the fixture surface and moves linearly, the elastic device forms a compression spring force, and when the rotor is released, the compression spring force forces the rotor in the opposite direction. Rotate and allow the rotor to have auxiliary starting power and initial rotational speed. Further, the movable catching device is not separated from the elastic device by the centrifugal force caused by and acting on the high speed rotation of the rotor, whereby the wrist exerciser operates normally.

Wrist exercisers, rotors, elastics, auxiliary starting force, movable catching devices

Description

WRIST EXERCISER WITH AUXILIARY STARTING FORCE

1 is a perspective view of a wrist exerciser constructed according to a first embodiment of the present invention.

2 is an exploded view of the wrist exerciser shown in FIG. 1.

3 is a perspective view of the wrist exerciser rotor shown at a different angle.

4 is a cross-sectional view of the wrist exerciser showing the structure of the elastic device.

5 is a cross-sectional view of the wrist exerciser showing the structure of the movable catching device.

6 is a cross-sectional view of the wrist exerciser showing the operation of the wrist exerciser by rotating the rotor with a finger.

7 is a cross-sectional view of the wrist exerciser showing a state in which the movable catching device is separated from the positioning element by a large centrifugal force.

8 is a perspective view of a wrist exerciser constructed according to a second embodiment of the present invention.

9 is an exploded view of the wrist exerciser shown in FIG. 8.

10 is a view showing a wrist exerciser operating with one hand according to a second embodiment of the present invention.

11 is a perspective view of a wrist exerciser constructed in accordance with a third embodiment of the present invention with a counter separate from the wrist exerciser.

Explanation of symbols on the main parts of the drawing

10: upper casing member

20: lower casing member

30: rotor

40 ring

50: resiliency device

60: movable catching mechanism

70: counter

100: wrist exercise machine

The present invention is provided in the form of a hollow sphere in which the rotor is rotatably supported therein, and by rotating the hollow sphere manually, the rotor rotates in the hollow sphere and thus the hand and wrist associated muscles. Wrist exercise machines that exhibit an athletic effect, and in particular, wrist exercisers which are configured to auto-start by the generation of an initial auxiliary starting force acting on the rotor, promote a regular operation of the wrist exercise machine.

Wrist exercisers are useful for hand and wrist related muscle exercises, particularly for rehabilitation therapeutic effects. Examples are disclosed in Taiwan Patent Publication No. 135058 and US Patent Publication No. 5,800,311. The device is suitable for exercising wrist muscles by operating with one hand. Operation of the wrist exerciser begins by providing effective starting force and / or starting torque to the rotor in the hollow casing, after which the rotor can also rotate by the force exerted by the wrist muscles. Therefore, initial starting of the rotor is an important issue in wrist exerciser operation.

The starting of the wrist exerciser is started by forcibly pulling the tow rope, which is traditionally wound in a circumferential groove formed in the rotor. Examples are shown in the above-mentioned Taiwan patent and US patent. A disadvantage of this type of wrist exerciser is that the traction rope can easily escape out of the circumferential groove of the rotor, which causes inaccurate and incorrect rotation of the rotor leading to failure of the wrist exerciser starting. Even if the rotor is started correctly, the rotor cannot have greater starting force and initial speed.

U. S. Patent No. 6,186, 914 and Taiwan Patent No. 364383 disclose a starting device based on rack-and-gearing for starting a wrist exerciser. By forcing the rack against the rotor, sufficient initial starting force and rotational speed can be obtained. However, since the rotor does not always stop at a fixed angular position, it is difficult to engage the rack with the transmission every time the rotor stops. The user must adjust the relative relationship between the wrist exerciser parts for coupling the rack and powertrain. This is clearly a headache. In addition, the rack must be forced to allow sufficient torque to be applied to the rotor. Not only is this a difficult task for a particular user, it can also hurt the user because the forcibly pulled rack can easily come into contact with the user's hand holding the wrist exerciser.

U.S. Design Publication No. D464,687 discloses an electric starter having a friction roller that can be engaged with a rotor of a wrist exerciser to apply driving force. An obvious disadvantage is that the immediate engagement between the friction roller and the rotor is not easily ensured and therefore difficult to operate for a particular user. In addition, since the friction roller is electrically driven, the hand may be injured when in contact with the hand of the user holding the wrist exerciser. In addition, the rotor is not held in a particular track, which limits the driving force exerted by frictional engagement with the rotor. Thus, similarly to the above, the electric starter does not guarantee a large starting force.

In addition, all conventional wrist exercisers and / or their starting devices are operated with two hands and are not suitable for persons with disabilities who can use only one hand. In addition, the exact coupling required between the conventional starting device and the rotor of the wrist exerciser makes it difficult for a conventional wrist exerciser to operate in the blind.

Therefore, to overcome the disadvantages of conventional devices, it is desired to provide a wrist exerciser with an auxiliary starting force for efficiently and easily starting operation of the wrist exerciser with both hands or one hand.

Therefore, the object of the present invention is that the compression spring force is formed by starting the rotation of the rotor by the user's fingers or by the traction on the surface of the fixture that is frictionally coupled, and when the rotor is released, the initial compression spring force is large It is to provide a wrist exerciser that rotates the rotor in the opposite direction while ensuring torque and speed, i.e. increased initial power and speed.

Another object of the present invention is to provide a wrist exerciser capable of forming auxiliary starting power and initial speed for accurate and correct starting of the wrist exerciser.

Another object of the present invention is to provide a wrist exerciser that can be operated by one hand only so that the blind and one handicapped person can use the wrist exerciser, and can be operated without visual feedback.

In order to achieve the above object, according to the present invention, the wrist exerciser includes an upper casing member and a lower casing member mounted to each other to surround the rotor therebetween. The upper casing member has an upper opening that exposes a portion of the rotor. The rotor has both sides mounted with two opposite axes, respectively. The shaft is rotatably connected to the outer ring. The outer ring includes an elastic device. On the side of the rotor facing the elastic device, a movable catching device is releasably connected to the elastic device, which is selectively and operatively connected. Thus, when the rotor starts to rotate or is towed by contact with the fixture surface and moves linearly, the elastic device forms a compression spring force, and when the rotor is released, the compression spring force rotates the rotor in the opposite direction and the rotor Have auxiliary starting power and starting rotation speed. Further, the movable catching device cannot be separated from the elastic device by the centrifugal force caused by and acting on the high speed rotation of the rotor, which causes the wrist exerciser to operate normally. Thus, accurate, safe, one-handed starting of the wrist exerciser can be accomplished without any visual feedback.

The present invention will become apparent to those skilled in the art from the following description of the preferred embodiments with reference to the accompanying drawings.

Referring to the drawings, in particular FIGS. 1 to 3, there is shown a wrist exerciser, which is generally designated 100 and manufactured according to the first embodiment of the present invention. The wrist exerciser 100 includes an upper casing member 10 and a lower casing member 20, all of which are hollow members and are preferably provided in a hemispherical form. The upper casing member 10 and the lower casing member 20 are detachably fixed to each other to form a sphere. The upper casing member 10 forms an opening 11 at its apex and also forms two slots 12, 13 in the lower circuit flange. The lower casing member 20 forms two lugs 21, 22 on the upper circular flange. Slots 12 and 13 of the upper casing member 10 may be receptably coupled with the protrusions 21 and 22 of the lower casing member 20, respectively, and bolts extending through the protrusions 21 and 22 ( Secured together by 211, 221, whereby the upper casing member 10 and the lower casing member 20 are detachably mounted together to form a receiving area A therebetween. The upper casing member 10 and the lower casing member 20 can be secured together by any suitable means known in the art, and the combination of the slots 12, 13 and the projections 21, 22 is just one non-limiting example. The point is obvious.

The rotor 30 forms axes 31, 32 axially aligned on both sides thereof. Two connectors 311 and 321 are formed on both sides of the rotor 30, respectively. As shown in FIGS. 2 and 3, the hole 312 extends through the connectors 311 and 321 on both sides of the rotor 30.

A ring 40 is disposed along the upper circular flange of the lower casing member 20. Two holes 41 and 42 are arranged in the ring in the diagonal direction. Retention member 43 is formed on the inner circumference of ring 40 corresponding to hole 41. Two slots 431 are formed in the retaining member 43.

Referring also to FIG. 4, the elastic device 50 includes a container 51, an elastic element 52, a lid 53, a drive shaft 54 and a bearing 55. The vessel 51 has an end surface formed with two ribs 511. To attach the container 51 to the ring 40, the rib 511 is sized and positioned so as to fit into the slot 431 formed in the retaining member 43 of the ring 40. In the center of the end face of the container 51, a hole 512 is formed which is aligned with the hole 41 of the ring 40. The opening 513 is formed in the circumferential wall of the container 51.

The elastic element 52 is received in the container 51. The elastic element 52 is not limited to any particular type, and the coil compression spring has been described here as an example in the description of the present invention. The elastic element 52 has a first end 521 provided in a ring form to engage the lateral opening 513 of the container 51. The elastic element 52 also has a second end 522 located substantially at its center.

The lid 53 is attached to the container 51 to seal the container 51 and thus protect the elastic element 52 in the container 51. The lid 53 has a through hole 531 having a circumference substantially formed at the center thereof with a notch 532 formed thereon.

The drive shaft 54 is a hollow shaft having two end portions respectively mounted to the fixed block 541 and the drive block 542. One end of the drive shaft 54 extends through the through hole 531 of the lid 53 and into the container 51 with the fixing block 541 passing through the notch 532 and the elastic element 52. Drive engagement with the second end 522 of the drive, so that the elastic element 52 is in operative connection with the drive shaft 54. The bearing 55 is mounted at the end of the drive shaft 54.

The shaft 31 of the rotor 30 extends through the bearing 55 into the interior of the hollow drive shaft 54 and further extends through the hole 512 of the vessel 51 to the hole of the ring 40. Enter 41. Another shaft 32 of the rotor 30 is received in the hole 42 of the ring 40. Accordingly, the rotor 30 is rotatably fixed to the ring 40, and the upper casing member 10 and the lower casing member 20 are partially exposed through the upper opening 11 of the upper casing member 10. Is located in the receiving area A formed therebetween.

Referring also to FIG. 5, the movable catching device 60 includes an arm 61, a shaft 62 and at least one positioning element 63. Arm 61 is made of a magnetically conductive metal or a magnetic plate. Holes 611 and notches 612 are formed at both ends of the arm 61, respectively. The hole 611 is aligned with the connector 311 of the rotor 30, and the notch 612 is engaged with the drive block 542 of the drive shaft 54 of the elastic device 50. The shaft 62 forms a circumferential groove 621 at its end. With the shaft 62 extending through the hole 611 and the hole 312, the C-clip engages the circumferential groove 621 of the shaft 62 to angle the arm 61 to a predetermined angle. It is rotatably fixed to the connector 311 to have a limited rotation in the range.

The positioning element 63 is disposed above the rotor 30 at any position in the rotational path of the arm 61. The positioning element 63 is made of a magnet or a magnetically conductive metal and can therefore pull and fix the arm 61 when the rotor 30 is rotating at rest or at low speed. Thus, when the rotor 30 rotates at rest or at low speed, the connection between the arm 61 and the drive shaft 54 can be maintained. However, the connection between the arm 61 and the positioning element 63 is not limited to the connection by the magnetic attraction described above, but may be replaced by a connection by other suitable means.

The connection between the elastic device 50 and the movable catching device 60 is not limited to the connection formed by the coupling between the drive block 542 of the drive shaft 54 and the notch 612 of the arm 61, and other suitable means. It can be replaced by a connection by means.

Referring also to FIG. 6, the operation of wrist exerciser 100 is shown. The user holds the wrist exercise device 100 with one hand and moves the rotor 30 in contact with the rotor 30 through the upper opening 11 of the upper casing member 10 with the fingers of the other hand. By rotating the rotor 30 in a given direction, such as the counterclockwise direction shown in FIG. 6, the arms 61 of the movable catching device 60 are engaged and thus move the drive shaft 54 of the elastic device in a relatively opposite direction ( That is, in the present embodiment, it is rotated clockwise). Thus, the stationary block 541 of the drive shaft 54 drives the elastic element 52 and thus winds up and compresses the elastic element 52 so that the elastic element 52 has a compressed spring force.

Referring also to FIG. 7, when the finger is removed from the rotor 30, the compressed elastic element 52 also releases a spring force to drive the drive shaft 54 in the opposite direction, ie, as indicated by the arrow in FIG. 7. Drive clockwise. Through the coupling between the drive block 542 and the arm 61 of the movable catching device 60, the rotor 30 is driven rotationally by the drive shaft 54, for example counterclockwise in the illustrated embodiment. In addition, the initial starting torque and the rotational speed are applied to the rotor 30 to help the rotor 30 to have acceleration when the spheres of the upper and lower casing members 10 and 20 are operated by the user. That is, the rotor 30 is accelerated by the work of the user who holds the wrist exercise machine 100 by hand, and the auxiliary starting force assured by the above-described configuration helps the rotor 30 to have high speed and high torque efficiently. To keep the rotation.

If the rotor 30 has a high rotational speed, the centrifugal force exerted on the arm 61 becomes larger than the magnetic attraction induced by the positioning element 63, and by the centrifugal force, the arm 61 Is separated from the positioning element 63 and the elastic device 50 is separated from the movable catching device 60 to allow normal rotation of the rotor 30. As such, conventionally used traction ropes, rack and gear arrangements, and electric starters are no longer needed for starting the rotor 30.

When the rotor 30 of the wrist exerciser 100 is decelerated and returned to a low speed rotation state or even to a stationary state, the centrifugal force acting on the movable catching device 60 becomes smaller than the magnetic attraction force, so that the arm 61 rotates. 5 through the positioning element 63, it is pulled back and fixed by the positioning element 63, and the connection shown in FIG. 5 shows a state in which the elastic device 50 is connected to the movable catching device 60. It returns to the state.

8 and 9, which are also denoted by reference numeral 100 for simplicity and illustrating a wrist exerciser according to a second embodiment of the present invention, in a second embodiment of the wrist exerciser 100, the rotor 30 Form at least one circumferential slot 33 on which the ring 331 is mounted. The ring 331 is not limited to a particular type, and a rubber ring having sufficient surface friction force was used as an example of the ring 331.

FIG. 10 shows the operation of the second embodiment of the wrist exerciser 100 shown in FIGS. 8 and 9. Wrist exerciser 100 is operated with one hand. With the upper opening 11 of the upper casing member 10 facing downward, a portion of the rotor 30 is exposed to the outside of the opening 11 of the upper casing member 10, the upper and lower casing members 10 , 20) is held by hand. The wrist exerciser 100 moves to the left, and the contact between the ring 331 of the rotor 30 and the fixture surface 200 ensures a friction force therebetween, and the user's hand described in FIG. 6 and the previous embodiment. As shown in FIG. 10, which is shown to cause counterclockwise rotation of the rotor 30, similar to the initial rotational drive by the exposed portion of the rotor 30, the exposed portion of the rotor 30 may be in contact with a table top, ground or other flat surface. Positioned relative to the same fixture surface 200, the wrist exerciser 100 is forced to perform a linear movement with respect to the fixture surface to cause rotation of the rotor 30. Thus, also as in the previous embodiment, the elastic element 52 of the elastic device 50 is wound and compressed to form a compression spring force such that the wrist exerciser 100 is lifted and the rotor 30 is fixed to the fixture surface ( 200, the spring force of the elastic element 52 is released to cause an initial clockwise rotation of the rotor 30, which causes the wrist exerciser 100 according to the second embodiment as shown in FIG. The same operation as in the previous previous embodiment can be performed. The one hand operated embodiment shown in FIG. 10 is preferably suitable for disabled persons.

FIG. 11 shows a wrist exerciser, also indicated at 100 for simplicity and constructed in accordance with a third embodiment of the present invention. In the wrist exerciser 100 according to the third embodiment, the lower casing member 20 forms an opening 23 at its bottom apex, and a counter in the opening 23 for calculating the rotational speed of the rotor 30. 70 is mounted. The counter 70 includes a display unit 71 for displaying the rotational speed of the rotor 30. The counter 70 may be any suitable device, such as a photo-electrical counter or a magnetism based counter, for example operated in conjunction with the positioning element 63.

Although the invention has been described in terms of preferred embodiments, it will be apparent to those skilled in the art that various modifications and changes can be made without departing from the scope of the invention as defined by the appended claims.

According to the present invention, there is provided a wrist exerciser having an auxiliary starting force that can be operated efficiently and easily with both hands or with one hand.

In addition, according to the present invention, there is provided a wrist exerciser that can be started at auxiliary starting power and initial speed for accurate and correct starting of the wrist exerciser.

In addition, a wrist exerciser is provided that can be operated with one hand only and can be operated without visual feedback, so that the wrist exerciser can be used by the blind and disabled with only one hand.

Claims (17)

An upper casing member and a lower casing member, wherein the upper casing member and the lower casing member are hollow members and detachably mounted to each other to form an accommodation space therebetween, the upper casing member forming an opening; and A lower casing member; Having a portion rotatably received in the receiving space between the upper casing member and the lower casing member, having both sides and extending therefrom in opposite directions from each other, and optionally exposed to the outside of the upper casing member through the opening; A rotor that is sized and disposed so that the rotor is sized and disposed; An outer ring disposed along a circular flange of the lower casing member and forming two holes to rotatably receive the shaft of the rotor, respectively; An elastic device connected to the ring and selectively forming and releasing a spring force at a position corresponding to one of the holes of the ring; A spring connected to one side of the rotor and operatively connected to the elastic device, wherein the elastic device forms a spring force by applying a contact force to rotate the rotor, and the elastic device acts on the rotor by releasing the contact force that rotates the rotor. Wrist exerciser, comprising: a movable catching device that releases force to provide an initial auxiliary starting force to the rotor. The method of claim 1, And the upper casing member has a circular flange with two slots formed therein. The method of claim 1, And the lower casing member defines a bottom opening. The method of claim 3, And a counter mounted to the bottom opening of the lower casing member. The method of claim 1, The rotor has both sides, and the wrist exerciser, characterized in that the connector is mounted on each side. The method of claim 5, Wrist exercise device, characterized in that the hole is formed through the connector. The method of claim 1, Wrist exercise machine, characterized in that the groove is formed around the rotor. The method of claim 7, wherein Wrist exercise machine, characterized in that the ring is mounted and fixed to the groove. The method of claim 8, Wrist ring characterized in that the ring comprises a rubber ring. The method of claim 1, And the outer ring comprises a retaining member. The method of claim 10, Wrist exercise device, characterized in that two slots are formed in the holding member. The method of claim 1, The elastic device, A container mounted to the outer ring and forming a hole aligned with the hole of the outer ring, the container having a circumferential wall having an opening; An elastic element having a first end received in the container and engageable with an opening formed in the circumferential wall of the container and having a second end positioned substantially centrally; A lid mounted to the container to seal the container to hold the elastic element in the container and to form a through hole having a circumference formed with a notch in the center thereof; A drive shaft comprising a hollow shaft, each end having both ends defining a fixed block and a drive block, wherein the fixed block passes through the notches and enters the container to operatively connect the elastic element to the drive shaft; A drive shaft in which one end of the drive shaft extends through the through hole of the lid in engagement with the end; Wrist exerciser, characterized in that it comprises a bearing mounted to the drive shaft. The method of claim 12, And the elastic element comprises a compression coil spring. The method of claim 1, The movable catching device, An arm having both ends aligned with one side of the rotor and having both ends formed with notches engaged with the elastic device; A shaft having an end with a circumferential groove formed therein, the shaft extending through the hole and the rotor of the arm and held by a C-clip mounted to the groove to rotatably fix the arm to the side of the rotor; And a positioning element mounted to one side of the rotor in the rotational path of the arm to selectively retain the arm. The method of claim 10, Wrist exercise device, characterized in that two slots are formed in the holding member. The method of claim 14, And said arm is made of a magnetically conductive metal. The method of claim 14, And the positioning element comprises a magnet.

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