TWI875645B - Forearm strength exercise device - Google Patents

Abstract

A forearm strength exercise device including an inner rod, a first grip sleeve, a second grip sleeve and a plurality of elastic resistance elements is disclosed. The first grip sleeve and the second grip sleeve respectively positioned on the left and right sides of the inner rod, and the opening end of the first grip sleeve is formed with a right ring dial and a plurality of first fixing parts; the opening end of the second grip sleeve is formed with a left ring dial and a plurality of second fixing members, and the opening end of the first grip sleeve and the open end of the second grip sleeve are separated by a distance; when the first grip sleeve and the second grip sleeve are rotate relatively along the inner rods, the right ring dial produces a visual angle difference relative to the left ring dial; each of the plurality of elastic resistance elements are respectively connected to each pair of the plurality of corresponding first fixing parts and the plurality of second fixing parts, thereby producing a rotational resistance.

Description

Hand muscle training device

The present invention relates to a sports training device, and more particularly to a training device for forearm and wrist movements.

Wrist muscle rehabilitation equipment is a device used to strengthen and restore wrist muscle strength, usually for patients who need hand rehabilitation, such as people with wrist injuries or arm muscle weakness. The main purpose of this device is to help patients regain hand function by providing adjustable resistance training.

However, conventional wrist muscle rehabilitation equipment lacks a mechanism to provide visual feedback to users, that is, when users operate the wrist muscle rehabilitation equipment, they cannot immediately understand the magnitude of their own strength. Therefore, after repeatedly operating the wrist muscle rehabilitation equipment, users tend to feel bored and tired, and it is difficult to establish a habit of continuous practice and use.

To solve the above problems, the present invention provides a hand muscle training device, comprising an inner rod, a first grip cover, a second grip cover and a plurality of elastic resistance elements; wherein the inner rod has a first long axis direction and comprises a right rod portion and a left rod portion; the first grip cover is sleeved on the right rod portion of the inner rod, and the opening end of the first grip cover has a right angle disc and a plurality of first fixing members distributed in a circumferential manner; the second grip cover is sleeved on the left rod portion of the inner rod, and the opening end of the second grip cover has a left angle disc and a plurality of second fixing members distributed in a circumferential manner, and The opening end of the first grip cover is spaced apart from the opening end of the second grip cover by a distance; wherein, when the first grip cover and the second grip cover rotate relative to each other along the first long axis direction, the right angle disc produces a visual angle difference relative to the left angle disc; a plurality of elastic resistance elements are respectively connected to the corresponding plurality of first fixing members and the plurality of second fixing members, an initial length of each of the plurality of elastic resistance elements is less than the distance, and the plurality of elastic resistance elements form resistance when the first grip cover and the second grip cover rotate relative to each other along the first long axis direction.

According to a hand muscle strength training device of one embodiment of the present invention, the plurality of first fixing members are disposed on the right angle plate; the plurality of second fixing members are disposed on the left angle plate.

According to a hand muscle strength training device of one embodiment of the present invention, the plurality of first fixing members are equidistantly distributed on the right angle disk, and the right angle disk has an angle identification code; the plurality of second fixing members are equidistantly distributed on the left angle disk, and the left angle disk has an angle identification code.

According to a hand muscle training device of one embodiment of the present invention, the right angle disk has scale marks, and the first fixing member has angle numbers; the left angle disk has scale marks, and the second fixing member has angle numbers.

According to the hand muscle training device of one embodiment of the present invention, the plurality of elastic resistance elements are detachably fixed to the plurality of first fixing members and the plurality of second fixing members.

According to a hand muscle strength training device of one embodiment of the present invention, the plurality of elastic resistance elements include a plurality of rubber bands with different resistance sizes.

According to the hand muscle strength training device of one embodiment of the present invention, the first grip sleeve and the second grip sleeve are cylindrical sleeves.

According to a hand muscle training device of one embodiment of the present invention, either the first grip sleeve or the second grip sleeve is a long rectangular sleeve.

According to the hand muscle strength training device of one embodiment of the present invention, the plurality of first fixing members and the plurality of second fixing members are hooks.

The present invention also provides a hand muscle training device, which is suitable for use with a plurality of elastic resistance elements to provide users with the purpose of training hand muscle strength, including an inner rod, a first grip cover and a second grip cover; wherein the inner rod has a first long axis direction and includes a right rod portion and a left rod portion; the first grip cover is sleeved on the right rod portion of the inner rod, and the opening end of the first grip cover has a right angle disc and a plurality of first fixing members distributed in a circumferential manner; and the second grip cover is sleeved on the left rod portion of the inner rod, and the opening end of the second grip cover has a left angle disc and a plurality of first fixing members distributed in a circumferential manner. and a plurality of second fixing members, and an opening end of the first grip cover is spaced apart from an opening end of the second grip cover by a distance, and the distance is greater than an initial length of the plurality of elastic resistance elements; wherein, when the first grip cover and the second grip cover rotate relative to each other along the first long axis, the right angle disk produces a visual angle difference relative to the left angle disk; wherein, the corresponding plurality of first fixing members and the plurality of second fixing members are used to fix the plurality of elastic resistance elements, and form resistance when the first grip cover and the second grip cover rotate relative to each other along the first long axis.

Several embodiments will be listed below in conjunction with drawings to illustrate the technical content of the present invention in detail. The component symbols cited in the following description will be regarded as the same or similar components in different drawings.

Referring to FIG. 1 and FIG. 2 , FIG. 1 is a front view of the hand muscle training device of the first embodiment of the present invention; FIG. 2 is a schematic diagram of the exploded structure of the hand muscle training device of the first embodiment of the present invention. As shown in FIG. 1 and FIG. 2 , the hand muscle training device 100 of the first embodiment of the present invention comprises an inner rod 10, a first grip cover 20, a second grip cover 30 and a plurality of elastic resistance elements 40.

The inner rod 10 is a long cylinder having a first long axis direction T along the length direction of the inner rod 10 and including a right rod portion 11 and a left rod portion 12. The first grip cover 20 and the second grip cover 30 are respectively mounted on the right rod portion 11 and the left rod portion 12 of the inner rod 10 from the left and right sides of the inner rod 10. See also FIG3, which is a cross-sectional schematic diagram of the hand muscle training device 100. As shown in FIG3, the length of the inner rod 10 is L1, the length of the first grip cover 20 is L2, and the length of the second grip cover 30 is L3, and the length L2 of the first grip cover 20 plus the length L3 of the second grip cover 30 is less than the length L1 of the inner rod 10. Therefore, when the first grip cover 20 and the second grip cover 30 are respectively mounted on the inner rod 10, the opening end 20A of the first grip cover 20 and the opening end 30A of the second grip cover 30 are spaced apart by a distance D1, and the first grip cover 20 and the second grip cover 30 can rotate along the first longitudinal axis direction T. In the present embodiment, the inner rod 10 is made of plastic, and in other embodiments, the material of the inner rod 10 may also include metal or wood.

Referring again to FIG. 2 , in the present embodiment, the main body of the first grip cover 20 is a cylindrical sleeve, and the open end 20A of the first grip cover 20 has a right angle disc 21 and a plurality of first fixing members 22. The right angle disc 21 is an annular structure and is disposed at the outer edge of the open end 20A, and rotates synchronously with the first grip cover 20. Preferably, the outer contour of the right angle disc 21 is a circle. An angle identification mark 23 is formed on the right angle disc 21. The plurality of first fixing members 22 are disposed at the outer edge of the open end 20A of the first grip cover 20 in a manner of surrounding the open end 20A. In the present embodiment, the plurality of first fixing members 22 are a plurality of hooks disposed on the right angle disc 21. As shown in FIG. 2 , the right angle plate 21 is provided with eight first fixing members 22 (hooks) protruding from the outer edge of the right angle plate 21. The eight first fixing members 22 are equidistantly distributed on the right angle plate 21, that is, every two adjacent first fixing members 22 are arranged on the right angle plate 21 at the same angle of 45 degrees. In other embodiments, the plurality of first fixing members 22 may also be other numbers of hooks, such as four or six; or the plurality of first fixing members 22 may be, for example, fixing buckles, etc., but the present invention is not limited thereto.

In this embodiment, the second grip cover 30 has the same structure as the first grip cover 20. The main body of the second grip cover 30 is a cylindrical sleeve. The open end 30A of the second grip cover 30 has a left angle disk 31 and a plurality of second fixing members 32. Preferably, the outer contour of the left angle disk 31 is a circle. An angle identification mark 33 is formed on the left angle disk 31. The plurality of second fixing members 32 are arranged on the outer edge of the open end 30A of the second grip cover 30 in a manner of surrounding the open end 30A. Among them, the first fixing member 22 and the second fixing member 32 are arranged in pairs, respectively, on the first grip cover 20 and the second grip cover 30. In the present embodiment, the first grip cover 20 and the second grip cover 30 are made of plastic, and the plastic includes low temperature thermoplastic plastic (Low Temperature Thermoplastic Material) or high temperature thermoplastic plastic (High Temperature Thermoplastic Material); in other embodiments, the material of the first grip cover 20 and the second grip cover 30 may also include metal or wood, etc. Further, although in the present embodiment, the first grip cover 20 and the second grip cover 30 have the shape of a cylindrical sleeve, in other embodiments, the first grip cover 20 and the second grip cover 30 may also include the shape of an auxiliary sleeve, so that users with injured fingers can also use the auxiliary sleeve to easily operate the hand muscle training device of the present invention.

A plurality of elastic resistance elements 40 are mounted on the first fixing member 22 and the second fixing member 32 corresponding to the first grip cover 20 and the second grip cover 30, respectively. Each elastic resistance element 40 has an original length before being stretched, and the original length of each elastic resistance element 40 is smaller than the distance D1 between the opening end 20A of the first grip cover 20 and the opening end 30A of the second grip cover 30. In this embodiment, the elastic resistance element 40 is a rubber ring; the first fixing member 22 and the second fixing member 32 are hooks. The installation method is to stretch the elastic resistance element 40, and then put the two ends of the elastic resistance element 40 on the first fixing member 22 and the second fixing member 32 (hook) respectively. The elastic resistance element 40 generates elastic tension after being stretched, and this elastic tension can fix the first grip cover 20 and the second grip cover 30 at relative positions. Therefore, when the first grip cover 20 and the second grip cover 30 of the hand muscle training device 100 are subjected to external force to rotate relative to each other, for example, when the first grip cover 20 rotates clockwise along the first long axis direction T and the second grip cover 30 rotates counterclockwise along the first long axis direction T, the elastic resistance element 40 (rubber ring) will generate resistance to prevent the first grip cover 20 and the second grip cover 30 from rotating relative to each other.

To further explain, the right angle disc 21 of the first grip cover 20 and the left angle disc 31 of the second grip cover 30 both include angle identification marks; in the present embodiment, the angle identification marks are a plurality of scales, and the scales are horizontal bar marks equidistantly distributed on the outer ring surface of the right angle disc 21. Furthermore, the angle identification marks further include angle numbers, such as 0, 45, 90, 135, etc., representing 0 degrees, 45 degrees, 90 degrees, and 135 degrees, respectively. In the present embodiment, the angle numbers are respectively set on the plurality of first fixing members 22 and the plurality of second fixing members 32. Preferably, in terms of the numerical arrangement order, the plurality of angle numbers are centered on "0" degrees and are set on the first fixing member 22 or the second fixing member 32 in a vertically symmetrical manner. For example, "135, 90, 45, 0, 45, 90, 135", and "0" degree is set symmetrically with "180" degree. In this way, no matter in which direction (clockwise or counterclockwise) the user rotates the hand muscle training device 100, the angle difference can be determined by the angle numbers set in the above manner.

As mentioned above, the right angle disc 21 and the left angle disc 31 of the first grip cover 20 and the second grip cover 30 are arranged corresponding to each other. Therefore, when the first grip cover 20 and the second grip cover 30 are subjected to external force and rotate relative to each other on the inner rod 10, the user who applies the external force can obtain information on the degree of force rotation through the angle difference between the angle identification mark 23 of the right angle disc 21 and the angle identification mark 33 of the left angle disc 31 due to the different relative positions. As shown in FIG1 , when the hand muscle training device 100 is not in use, the first grip cover 20 and the second grip cover 30 are correspondingly arranged on the inner rod 10, and the angle identification mark 23 on the right angle plate 21 corresponds to the angle identification mark 33 on the left angle plate 31, that is, "0" degree of the right angle plate 21 corresponds to "0" degree of the left angle plate 31, and "45" degree of the right angle plate 21 corresponds to "45" degree of the left angle plate 31, etc. Please also refer to FIG4 , which is a schematic diagram of the state of the hand muscle training device 100 of the present invention being relatively rotated by an external force. As shown in FIG4 , when the user applies force to rotate the first grip cover 20 and the second grip cover 30, that is, when the right angle disc 21 at “45” degrees corresponds to the left angle disc 31 at “0” degrees, the user can visually know that the degree of force applied by the user can cause the hand muscle training device 100 to rotate 45 degrees based on the difference between the two. Furthermore, when the angle difference is higher, for example, when the right angle disc 21 at “90” degrees corresponds to the left angle disc 31 at “0” degrees, the user can perceive that the hand force is increased to rotate 90 degrees. That is, when using the hand muscle strength training device 100, the user can obtain real-time visual feedback through the angle difference presented by the right angle disk 21 and the left angle disk 31 when they rotate, and can use the angle difference to evaluate the size of his or her hand muscle strength, thereby gaining a sense of accomplishment by using the hand muscle strength training device 100.

Furthermore, the plurality of elastic resistance elements 40 may include a plurality of elastic resistance elements 40 with different resistance sizes. In the present embodiment, the plurality of elastic resistance elements 40 include a plurality of rubber bands with different widths. Since in the present embodiment, the plurality of rubber bands are detachably mounted on the first fixing member 22 of the first grip cover 20 and the second fixing member 32 of the second grip cover 30, the user can replace rubber bands of different strengths according to actual usage conditions. When the user's strength is relatively small, the elastic resistance element 40 can be replaced with a set of thinner rubber bands to reduce the resistance to rotating the first grip cover 20 and the second grip cover 30; when the user's strength is relatively large, the elastic resistance element 40 can be replaced with a set of thicker rubber bands to increase the resistance to rotating the first grip cover 20 and the second grip cover 30. The hand muscle training device 100 of the present invention can be more widely applicable to users of different ages and needs by configuring a plurality of elastic resistance elements 40 with different resistance sizes, thereby greatly improving the practicality of the hand training device.

Although in this embodiment, the elastic resistance element 40 is a rubber ring, the elastic resistance element 40 may also be other elements with elastic restoring force, such as an elastic band or a spring, etc., and the present invention is not limited thereto. The material of the elastic resistance element 40 may include plastic, silicone or rubber, etc.; when the elastic resistance element 40 is a spring, the material of the elastic resistance element 40 may further include metal.

In the aforementioned embodiment, the angle numbers of the angle identification marks 23 and 33 of the right angle disk 21 and the left angle disk 31 are located on the first fixing member 22 and the second fixing member 32. However, in other embodiments, the angle numbers can also be set on the outer ring surface of the right angle disk 21 and the left angle disk 31, that is, set together with the scale marks. The present invention is not limited to this.

In another embodiment, the angle identification marks 23 and 33 of the right angle plate 21 and the left angle plate 31 may also include angle numbers alone, such as 0, 45, 90, 135, etc., and the angle numbers are set on the marks of the first fixing member 22 and the second fixing member 32. The present invention is not limited to this.

See FIG. 5, which is a front view of the hand muscle training device 200 of the second embodiment of the present invention. The hand muscle training device 200 of the present embodiment has a substantially similar structure to the hand muscle training device 100 of the first embodiment, with the main difference being that the second grip cover 230 of the hand muscle training device 200 of the present embodiment is a long rectangular sleeve, and the side wall surface 231 of the second grip cover 230 is composed of four planes. That is, the side wall surface 231 of the second grip cover 230 is a plane. Furthermore, in the second embodiment, the weight of the second grip cover 230 is greater than that of the first grip cover 220. Therefore, in actual use, the second grip cover 230 of the hand muscle training device 200 can be placed on a table, and one end (the second grip cover 230) of the hand muscle training device 200 can be fixed by the weight of the second grip cover 230 itself, and the user can rotate the first grip cover 220 at the other end with one hand to perform one-handed hand muscle training exercises.

See FIG. 6 , which is a front view of a hand muscle training device 300 according to a third embodiment of the present invention. The hand muscle training device 300 according to this embodiment has substantially the same structure as the hand muscle training device 100 according to the first embodiment, with the main difference being that the side wall surfaces of the first grip cover 320 and the second grip cover 330 of the hand muscle training device 300 according to this embodiment further include anti-slip portions 325 and 335. The anti-slip portions 325 and 335, for example, include a dot structure or a stripe structure protruding from the side wall surfaces of the first grip cover 320 and the second grip cover 330, which can be used to increase the friction between the user's hand and the first grip cover 320 and the second grip cover 330.

Although the present invention is described by using several embodiments, these embodiments are not intended to limit the scope of the present invention. For those with ordinary knowledge in the technical field to which the present invention belongs, various changes can be made by referring to the contents of the embodiments disclosed in the present invention without departing from the spirit and scope of the present invention. Therefore, the present invention is defined by the following patent application scope, and any changes made within the patent application scope or its equivalent scope should still fall within the patent application scope of the present invention.

10: Inner rod 100: Hand muscle training device 11: Right rod 12: Left rod 20: First grip 200: Hand muscle training device 20A: Open end of first grip 20 21: Right angle plate 22: First fixing member 220: First grip 23: Angle identification mark 230: Second grip 231: Side wall of second grip 30: Second grip 30A: Open end of second grip 30 300: Hand muscle training device 31: Left angle plate 32: Second fixing member 320: First grip 325: Anti-slip part 33: Angle identification mark 330: Second grip cover 335: Anti-slip part 40: Elastic resistance element D1: Distance L1: Length of inner rod L2: Length of first grip cover L3: Length of second grip cover T: Direction of first major axis

FIG1 is a front view of a hand muscle training device according to a first embodiment of the present invention;

FIG2 is a schematic diagram of the exploded structure of the hand muscle training device according to the first embodiment of the present invention;

FIG3 is a cross-sectional schematic diagram of the hand muscle training device according to the first embodiment of the present invention;

FIG4 is a schematic diagram of the hand muscle training device of the first embodiment of the present invention in a state where the hand muscle training device is subjected to relative rotation by an external force;

FIG5 is a front view of the hand muscle training device according to the second embodiment of the present invention; and

FIG6 is a front view of the hand muscle training device according to the third embodiment of the present invention.

10: Inner rod

100: Hand muscle strength training device

20: First grip set

21: Right angle plate

22: First fixing member

23: Angle identification mark

30: Second grip set

31: Left angle plate

32: Second fixing member

33: Angle identification mark

40: Elastic resistance element

D1: Spacing

Claims (10)

A hand muscle training device comprises: an inner rod having a first long axis direction and comprising a right rod portion and a left rod portion; a first grip sleeve, which is sleeved on the right rod portion of the inner rod, and the opening end of the first grip sleeve has a right angle disc and a plurality of first fixing members distributed in a circumferential manner; A second grip sleeve is sleeved on the left rod portion of the inner rod, the opening end of the second grip sleeve has a left angle disc and a plurality of second fixing members distributed in a circumferential manner, and the opening end of the first grip sleeve is separated from the opening end of the second grip sleeve by a distance; wherein, when the first grip sleeve and the second grip sleeve rotate relative to each other along the first long axis direction, the right angle disc produces a visual angle difference relative to the left angle disc; and A plurality of elastic resistance elements are respectively connected to the corresponding plurality of first fixing members and the plurality of second fixing members, the initial length of each of the plurality of elastic resistance elements is less than the distance, and the plurality of elastic resistance elements form resistance when the first grip sleeve and the second grip sleeve rotate relative to each other along the first long axis direction. As in claim 1, the hand muscle strength training device, wherein the plurality of first fixing members are disposed on the right angle plate; and the plurality of second fixing members are disposed on the left angle plate. As in claim 2, the plurality of first fixing members are equidistantly distributed on the right angle disk, and the right angle disk has an angle identification code; the plurality of second fixing members are equidistantly distributed on the left angle disk, and the left angle disk has an angle identification code. A hand muscle strength training device as claimed in claim 2, wherein the right angle disk has scale marks, and the first fixing member has angle numbers; the left angle disk has scale marks, and the second fixing member has angle numbers. As in claim 1, the hand muscle training device, wherein the plurality of elastic resistance elements are detachably fixed to the plurality of first fixing members and the plurality of second fixing members. As in claim 5, the hand muscle strength training device, wherein the plurality of elastic resistance elements include a plurality of rubber bands with different resistance sizes. As in claim 1, the hand muscle training device, wherein the first grip cover and the second grip cover are cylindrical sleeves. A hand muscle training device as claimed in claim 1, wherein either the first grip sleeve or the second grip sleeve is a long rectangular sleeve. As in claim 1, the hand muscle strength training device, wherein the plurality of first fixing members and the plurality of second fixing members are hooks. A hand muscle training device is suitable for use with a plurality of elastic resistance elements to provide users with the purpose of training hand muscle strength, comprising: an inner rod having a first long axis direction and comprising a right rod portion and a left rod portion; a first grip sleeve, sleeved on the right rod portion of the inner rod, the open end of the first grip sleeve having a right angle disc and a plurality of first fixing members distributed in a circumferential manner; and A second grip sleeve is sleeved on the left rod portion of the inner rod, the opening end of the second grip sleeve has a left angle disc and a plurality of second fixing members distributed in a circumferential manner, and the opening end of the first grip sleeve is separated from the opening end of the second grip sleeve by a distance, and the distance is greater than the initial length of the plurality of elastic resistance elements; wherein, when the first grip sleeve and the second grip sleeve rotate relative to each other along the first long axis direction, the right angle disc generates a visual angle difference relative to the left angle disc; wherein, the corresponding plurality of first fixing members and the plurality of second fixing members are used to fix the plurality of elastic resistance elements, and form resistance when the first grip sleeve and the second grip sleeve rotate relative to each other along the first long axis direction.