Patent Application
20190344118
The present invention relates to a twisting exerciser, and more particularly, to a twisting exerciser that allows the users to twist their body by sitting on the pad or standing on the bar. The twisting exerciser includes a simple structure with reasonable manufacturing cost and meets principles of ergonomics.
The conventional twisting exerciser generally includes a base with an active gear and a passive gear which is engaged with the active gear so as to drive the pad and the handle assembly to twist relative to each other. The user sits in the pad to exercise the muscles of the upper body and the lower body by the twisting actions.
However, there are several shortcomings found in the conventional twisting exercisers.
The distance between the upper tube and the lower tube is limited by the existed spring, and only a small distance is adjustable. The handle cannot be adjusted to a proper height for use by the user standing the pad. Therefore, the user can only operate the twisting exerciser by sitting in the pad.
The base is composed multiple tubes, and there is a fixed frame which is used to be connected to the active shaft. The base is bulky and complicated, and cannot be moved easily. The retractable feature of the base, and the cooperation of the active gear and the passive gear waste too much material which increases manufacturing cost.
The twisting angle is not properly limited, and the twisting angle between the pad and the handle assembly is not precisely controlled. This may cause injury to the user by overly twisting.
The bar for the feet to rest is located at a very low position which makes the user to almost vertically stretch his or her feet, and does not meet principles of ergonomics.
The present invention intends to provide a twisting exerciser that is designed to eliminate the drawbacks mentioned above.
The present invention relates to a twisting exerciser and comprises a base having a frame, a first shaft, a second shaft and a stop member respectively connected to the frame. A first swingable unit has a first fan-shaped gear, a pad and a connection bar. The first fan-shaped gear has a first sleeve which is pivotably mounted to the first shaft. The stop member limits a swinging angle of the first fan-shaped gear. The pad is secured to the top of the first sleeve. The connection bar has the first end fixed to the first sleeve, and an extension section extends upward from the second end of the connection bar. A rod is transversely connected to the extension section and located higher than the pad. A second swingable unit has a second fan-shape gear and a handle assembly. The second fan-shaped gear has a second sleeve which is pivotably mounted to the second shaft. The first and second fan-shaped gears are engaged with each other. The handle assembly has a transverse bar, a head tube and a handle. The transverse bar has the first end thereof connected to the second sleeve, and the second end of the transverse bar is connected to the lower end of the head tube. The handle has a collapsible tube extending from the center thereof. The collapsible tube is retractably connected to the top end of the head tube. The handle is adjusted to a height that that the user can hold the handle while standing on the pad.
The twisting exerciser of the present invention may adjust the handle to a height that the user can sit in the pad to hold the handle, or the handle to a height that the user can hold the handle while standing on the pad. In addition, the stop member limits the swinging angle of the first fan-shaped gear so that the user's upper body and lower body is restricted to be swung within a pre-set range of angle to avoid from being injured due to overly swinging. The rod is located on the top end of the extension section so that the feet of the user on the rod are higher than the pad, this pose meets the principles of ergonomics. Furthermore, the base is composed of the frame, the first shaft, the second shaft and the stop member. The first and second swinging units are respectively mounted to the first and second shafts, and the first and second fan-shaped gears are engaged with each other. The structure of the twisting exerciser is simplified and saves material to reduce the manufacturing cost.
The present invention will become more obvious from the following description when taken in connection with the accompanying drawings which show, for purposes of illustration only, a preferred embodiment in accordance with the present invention.
Referring to
The base 1 has a frame 10, and a first shaft 11, a second shaft 12 and a stop member 13 are respectively connected to the frame 10. The frame 10 is an I-shaped frame and includes multiple links. The stop member 13 includes a plate 14, and a first adjustable screw 15 and a second adjustable screw 16 are respectively and threadedly connected to the plate 14.
The first swingable unit 2 includes a first fan-shaped gear 20, a pad 21 and a connection bar 22. The first fan-shaped gear 20 has a first sleeve 23 which is pivotably mounted to the first shaft 11. The counter clockwise swinging angle of the first fan-shaped gear 20 is limited by the first adjustable screw 15 of the stop member 13. The clockwise swinging angle of the first fan-shaped gear 20 is limited by the second adjustable screw 16 of the stop member 13. The pad 21 is secured to the top of the first sleeve 23 and co-rotated with the first fan-shaped gear 20. The user may sit in the pad 21 or stands on the pad 21 to operate the twisting exerciser. The connection bar 22 has a fixed tube 24, a retractable tube 25, a rod 26 and an adjustable knob 27. The fixed tube 24 has the first end thereof fixed to the first sleeve 23. The retractable tube 25 has the first end thereof retractable connected to the second end of the fixed tube 24. The retractable tube 25 includes multiple positioning holes 250. An extension section 251 having a circular cross section is connected to the second end of the retractable tube 25 and extends upward from the second end of the connection bar 22. A rod 26 is connected to the distal end of the extension section 251 and located higher than the pad 21, so that the user's feet may put on the rod 26. The adjustable knob 27 of the connection bar 22 is inserted into one of the positioning holes 250 of the retractable tube 25 to adjust the retractable tube 25 to a proper length.
The second swingable unit 3 has a second fan-shape gear 30 and a handle assembly 31. The second fan-shaped gear 30 has a second sleeve 32 which is pivotably mounted to the second shaft 12. The first and second fan-shaped gears 20, 30 are engaged with each other. The handle assembly 31 has a transverse bar 33, a head tube 34 and a handle 35. The transverse bar 33 has the first end thereof connected between the second sleeve 32, and the second end of the transverse bar 33 is connected to the lower end of the head tube 34. The head tube 34 has a foam coat 340 mounted thereto. The handle 35 has a collapsible tube 36 extending from the center thereof, and the collapsible tube 36 is retractably connected to the top end of the head tube 34. The handle 35 can be adjusted to a height such that the user can hold the handle 35 while standing on the pad 21.
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When repeating the actions as disclosed in
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When the bolt 38 is removed from the lower end of the head tube 34 and the pivotable part 330, the user applies a force to the handle 35 to pivot the top end of the head tube 34 forward, and the spring 393 is compressed. When the force is released from the handle 35, the force from the spring 393 returns the head tube 34. By adjustment of the spring 393, the resistance of the back-and-forth action of the handle assembly 31 is adjustable.
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The advantages of the present invention are that the handle 35 can be adjusted to a height such that the user can hold the handle 35 while standing on the pad 21. The height of the handle 35 can also be adjusted so that the user can easily hold the handle 35 when sits in the pad 21. The user can operate the twisting exerciser when sitting or standing.
The base 1 includes the frame 10, the first shaft 11, the second shaft 12 and the stop member 13 to form an I-shaped base. The first swingable unit 2 and the second swingable unit 3 are respectively mounted to the first and second shafts 11, 12. The structure is simple and easily moved. Besides, the shape of the first and second fan-shaped gears 20, 30 save material and manufacturing cost.
The angle of the first fan-shaped gear 20 is restricted by the stop member 13 so that the angle that the upper body and the lower body of the user twists is limited to prevent the user from being injured due to overly twisting.
The extension section 251 extends upward from the connection bar 22 to locate the rod 26 slightly higher than the pad 21 or located close to the height of the pad 21, such that the feet of the user do not lowered when putting on the rod 26, this meets the principle of ergonomics.
While we have shown and described the embodiment in accordance with the present invention, it should be clear to those skilled in the art that further embodiments may be made without departing from the scope of the present invention.
