ABDOMINAL EXERCISER

Abstract

The present invention relates to the technical field of fitness equipment, specifically to an abdominal exerciser, including a machine frame portion and a movement portion rotatably connected to the machine frame portion. The movement portion includes a seat cushion assembly and a foot frame assembly. The abdominal exerciser further includes an elastic resistance mechanism, the elastic resistance mechanism is connected to both the machine frame portion and the movement portion, the elastic resistance mechanism is driven by the movement portion to undergo elastic deformation, and the elastic deformation provides movement resistance for relative rotation of the movement portion on the machine frame portion. The present invention provides movement resistance for the movement portion through the elastic deformation of the elastic resistance mechanism, thereby enhancing the exercise intensity and meeting the needs of high-intensity exercise.

Claims

1. An abdominal exerciser, comprising a machine frame portion, a movement portion rotatably connected to the machine frame portion, and elastic resistance mechanism, wherein the movement portion comprises a seat cushion assembly and a foot frame assembly, the elastic resistance mechanism is connected to both the machine frame portion and the movement portion, the elastic resistance mechanism is driven by the movement portion to undergo elastic deformation, and the elastic deformation provides movement resistance for relative rotation of the movement portion on the machine frame portion.

2. The abdominal exerciser according to claim 1, wherein the movement portion further comprises a connecting rod assembly, the seat cushion assembly and the foot frame assembly are respectively disposed at two ends of the connecting rod assembly, the elastic resistance mechanism comprises a linear elastic element, two ends of the linear elastic element are respectively a first elastic tail end and a second elastic tail end, the first elastic tail end of the linear elastic element is connected to the machine frame portion, and the second elastic tail end of the linear elastic element is connected to the connecting rod assembly of the movement portion or the foot frame assembly of the movement portion.

3. The abdominal exerciser according to claim 2, wherein the machine frame portion is provided with a first fixing member, the connecting rod assembly or the foot frame assembly of the movement portion is provided with a second fixing member, the first elastic tail end of the linear elastic element is connected to the first fixing member, and the second elastic tail end is connected to the second fixing member.

4. The abdominal exerciser according to claim 3, wherein the machine frame portion is provided with a roller, a region between the first elastic tail end and the second elastic tail end of the linear elastic element is defined as a middle portion of the linear elastic element, and the middle portion of the linear elastic element is wound around the roller.

5. The abdominal exerciser according to claim 4, wherein the machine frame portion comprises a main frame, the main frame comprises a first main frame rod set and a second main frame rod set that are cross-connected, a joint between the first main frame rod set and the second main frame rod set is located at a top of the first main frame rod set, the first fixing member is disposed at the joint between the first main frame rod set and the second main frame rod set, and the roller is disposed at a bottom of the first main frame rod set.

6. The abdominal exerciser according to claim 3, wherein the second fixing member is a hook, the second elastic tail end is detachably hooked onto the second fixing member, multiple second fixing members are provided, the connecting rod assembly is in a shape of a strip, and the multiple second fixing members are spaced apart on the connecting rod assembly along a length direction of the connecting rod assembly.

7. The abdominal exerciser according to claim 2, wherein the linear elastic element is an elastic rope.

8. The abdominal exerciser according to claim 1, wherein the movement portion further comprises a connecting rod assembly, the seat cushion assembly and the foot frame assembly are respectively disposed at two ends of the connecting rod assembly, the machine frame portion comprises a main frame and two handles disposed on two sides of the main frame for a user to grip, an extension direction of the connecting rod assembly is defined as an X-axis direction, a direction of the two handles relative to each other is defined as a Y-axis direction, a direction perpendicular to both the X-axis direction and the Y-axis direction is defined as a Z-axis direction, the connecting rod assembly is connected to the main frame via a rotating mechanism, and the rotating mechanism is configured to separately rotate around in the Y-axis direction and the Z-axis direction, such that the movement portion has a compound motion relative to the main frame, separately rotating around in the Y-axis direction and the Z-axis direction.

9. The abdominal exerciser according to claim 8, wherein the rotating mechanism comprises a first rotating mechanism and a second rotating mechanism, a rotation axis of the first rotating mechanism extends along the Y-axis direction, a rotation axis of the second rotating mechanism extends along the Z-axis direction, the connecting rod assembly is connected to the second rotating mechanism and is driven by the second rotating mechanism to rotate around the Z-axis direction, the second rotating mechanism is connected to the first rotating mechanism, the connecting rod assembly and the second rotating mechanism are driven by the first rotating mechanism to rotate around the Y-axis direction, and the first rotating mechanism is also connected to the main frame, such that respective rotations of the first rotating mechanism and the second rotating mechanism endow the movement portion with a function of the compound motion.

10. The abdominal exerciser according to claim 9, wherein the first rotating mechanism comprises a first rotating shaft and two connecting members fixedly connected to the main frame, the first rotating shaft extends along the Y-axis direction, the first rotating shaft is connected to the two connecting members, the first rotating shaft is externally provided with a first sleeve tube, the first sleeve tube is relatively rotatably connected to the first rotating shaft via a first shaft sleeve, the second rotating mechanism comprises a second sleeve tube fixedly connected to the first sleeve tube, a second rotating shaft penetrates in the second sleeve tube, the second rotating shaft extends along the Z-axis direction, the second rotating shaft is relatively rotatably connected to the second sleeve tube via a second shaft sleeve, and the second rotating shaft is further connected to the connecting rod assembly.

Description

BRIEF DESCRIPTION OF DRAWINGS

[0021] FIG. 1 is a perspective view according to an embodiment of the present invention.

[0022] FIG. 2 is an exploded view according to an embodiment of the present invention.

[0023] FIG. 3 is a front view according to an embodiment of the present invention.

[0024] FIG. 4 is a side view according to an embodiment of the present invention.

[0025] FIG. 5 is a diagram of a usage state according to an embodiment of the present invention.

[0026] FIG. 6 is a diagram of a folded state according to an embodiment of the present invention.

[0027] FIG. 7 is a sectional view along AA of FIG. 4.

[0028] FIG. 8 is a sectional view along BB of FIG. 4.

[0029] FIG. 9 is a perspective view according to another embodiment of the present invention.

[0030] Numeral references: 1. machine frame portion, 11. main frame, 111. first main frame rod set, 112. second main frame rod set, 12. handle, 2. movement portion, 21. seat cushion assembly, 22. foot frame assembly, 23. connecting rod assembly, 231. first connecting rod, 232. second connecting rod, 233. elastic pin, 234. adjustment hole, 3. elastic resistance mechanism, 31. elastic rope, 311. first elastic tail end, 312. second elastic tail end, 32. roller, 33. first fixing member, 34. second fixing member, 4. rotating mechanism, 41. first rotating mechanism, 411. first rotating shaft, 412. first sleeve tube, 413. first shaft sleeve, 414. connecting member, 42. second rotating mechanism, 421. second rotating shaft, 422. second sleeve tube, and 423. second shaft sleeve.

DESCRIPTION OF EMBODIMENTS

[0031] To further describe the embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are primarily used to illustrate embodiments and can be used with reference to the relevant description in the specification to explain the operating principles of the embodiments. Referring to this content, ordinary skilled persons in this field should understand other possible implementations and the advantages of the present invention. The components in the figure are not drawn to scale, and similar component symbols are typically used to represent similar components.

[0032] Referring to FIGS. 1 to 6, the present invention discloses an abdominal exerciser, which includes a machine frame portion 1 and a movement portion 2 rotatably connected to the machine frame portion 1. The machine frame portion 1 includes an inverted Vshaped main frame 11 and handles 12. The movement portion 2 includes a seat cushion assembly 21, a foot frame assembly 22, and a connecting rod assembly 23. The seat cushion assembly 21 and the foot frame assembly 22 are respectively disposed at two ends of the connecting rod assembly 23. During use, the user sits on the seat cushion assembly 21, places the feet on the foot frame assembly 22, grips the handles 12 with hands, and swings the legs centered on the hips, causing the movement portion 2 to rotate relative to the machine frame portion 1, achieving the purpose of exercise.

[0033] The main frame 11 of the machine frame portion 1 includes a first main frame rod set 111 and a second main frame rod set 112 that are cross-connected. The joint between the first main frame rod set 111 and the second main frame rod set 112 is located at the top of the first main frame rod set 111, enabling a side surface of the main frame 11 to form an inverted Vshaped structure. The bottoms of the first main frame rod set 111 and the second main frame rod set 112 are both placed on the ground or other fixed objects, so that the abdominal exerciser can be stably placed. The handles 12 are disposed at the top end of the second main frame rod set 112, and the two handles 12 sleeve the top end of the second main frame rod set 112. The first main frame rod set 111 and the second main frame rod set 112 are hinged, enabling the main frame 11 to form a foldable structure. When folded, the first main frame rod set 111 is brought closer to the second main frame rod set 112, facilitating the storage and transportation of the abdominal exerciser.

[0034] The abdominal exerciser further includes an elastic resistance mechanism 3. The elastic resistance mechanism 3 is connected to both the machine frame portion 1 and the movement portion 2. The elastic resistance mechanism 3 is driven by the movement portion 2 to undergo elastic deformation. The elastic deformation provides movement resistance for relative rotation of the movement portion 2 on the machine frame portion 1, thereby enhancing the exercise intensity when the user uses this abdominal exerciser, meeting the needs of high-intensity exercise, and improving the fitness effect.

[0035] Referring to FIGS. 1 to 5, the elastic resistance mechanism 3 includes a linear elastic element. A linear elastic element refers to an elastic element that follows Hooke's law, where its elastic force has a linear relationship with the deformation amount, such as an elastic rope or a spring. In this embodiment, the linear elastic element is specifically an elastic rope 31. The two ends of the elastic rope 31 are a first elastic tail end 311 and a second elastic tail end 312, respectively. The first elastic tail end 311 of the elastic rope 31 is connected to the machine frame portion 1, and the second elastic tail end 312 of the elastic rope 31 is connected to the connecting rod assembly 23 of the movement portion. The structure of the elastic rope 31 is simple, and can be stretched to generate elastic force as the movement portion 2 moves, allowing for reliable operation and low costs. Furthermore, the two ends of the elastic rope 31 are respectively connected to the main frame 11 and the connecting rod assembly 23. There is no interference between the rotational connection structures of the machine frame portion 1 and the movement portion 2. This thus adapts to different rotational connection structures of the abdominal exerciser, providing higher compatibility for the abdominal exerciser, and is conducive to later adding the elastic resistance mechanism 3 with the elastic rope 31 to the finished abdominal exerciser later.

[0036] The machine frame portion 1 is provided with a first fixing member 33, and the connecting rod assembly 23 of the movement portion 2 is provided with a second fixing member 34. The first elastic tail end 311 of the elastic rope 31 is connected to the first fixing member 33, and the second elastic tail end 312 is connected to the second fixing member 34. In this embodiment, both the first fixing member 33 and the second fixing member 34 are hooks. The first elastic tail end 311 and the second elastic tail end 312 of the elastic rope 31 are respectively provided with hook holes, such that the two ends of the elastic rope 31 are respectively hooked onto the two hooks. The elastic rope 31 is hooked onto the hooks, such that the elastic rope 31 is detachably displaced, which is convenient for replacement of the elastic rope 31. After aging, the elasticity of the elastic rope 31 weakens. Replacing the elastic rope 31 can maintain the resistance effect of the elastic resistance mechanism 3. Additionally, different users may have various intensity requirements when using the abdominal exerciser for exercise. The users can replace the elastic rope with different ones based on their own requirements or remove the elastic rope and rely solely on overcoming the weight for exercise. Additionally, when it is not necessary to replace different elastic ropes 31 and only the switching between the presence and absence of movement resistance of the elastic rope 31 is needed, that is, when only switching between the presence and absence of elastic force of the elastic rope 31 is needed, only the first fixing member 33 or the second fixing member 34 may be arranged as a hook. Hooking or unhooking one end of the elastic rope 31 to the hook can determine whether the elastic rope 31 provides elastic movement resistance.

[0037] Referring to FIGS. 1 to 5, the elastic resistance mechanism 3 also includes a roller 32 disposed on the machine frame portion 1. A region between the first elastic tail end 311 and the second elastic tail end 312 of the elastic rope 31 is defined as the middle part of the elastic rope 31, and the middle part of the elastic rope 31 is wound around the roller 32. The roller 32 can limit the extension and retraction direction of the elastic rope 31. As compared with the absence of a roller 32, in this embodiment, the middle part of the elastic rope 31 is wound around the roller 32, which can limit the extension direction of the elastic rope 31 to some extent, allowing for more controllable elastic force. During the extension and retraction process of the elastic rope 31, the roller 32 rolls, allowing the elastic rope 31 to extend and retract with minimal resistance limitation, and ensuring that the movement portion 2 receives sufficient movement resistance.

[0038] The first fixing member 33 is arranged at the joint between the first main frame rod set 111 and the second main frame rod set 112. The roller 32 is arranged at the bottom of the first main frame rod set 111, which can increase the length of the elastic rope 31, providing a larger extension space and elastic range, thus expanding the rotation range of the movement portion 2.

[0039] The connecting rod assembly 23 is in the shape of a long strip. The second fixing member 34 is arranged at a position of the connecting rod assembly 23, which is closer to the foot frame assembly 22 than the seat cushion assembly 21. Because the rotation center of the movement portion 2 is arranged in a region relatively close to the seat cushion assembly 21, arranging the second fixing member 34 at a position of the connecting rod assembly 23 closer to the foot frame assembly 22 can provide greater movement resistance torque, allowing this abdominal exerciser to have more noticeable resistance.

[0040] Referring to FIG. 9, multiple second fixing members 34 are provided. The multiple hook-structured second fixing members 34 are spaced apart on the connecting rod assembly 23 along the length direction of the connecting rod assembly 23. More specifically, the connecting rod assembly 23 includes a first connecting rod 231 and a second connecting rod 232 jointed through sleeving. The seat cushion assembly 21 is arranged at the end of the first connecting rod 231 away from the second connecting rod 232, and the foot frame assembly 22 is arranged at the end of the second connecting rod 232 away from the first connecting rod 231. The second connecting rod 232 has an elastic pin 233, and the first connecting rod 231 has multiple adjustment holes 234 for accommodating the elastic pin. Thus, the second connecting rod 232 can slide along the first connecting rod 231 to extend or retract the connecting rod assembly 23, driving the foot frame assembly 22 arranged at the tail end of the second connecting rod 232 to adjust the distance from the seat cushion assembly 21, and adapting to different leg lengths of different users. The second fixing member 34 is fixedly arranged on the first connecting rod 231 and is located on the opposite side of the adjustment hole 234, preventing the extension and retraction of the connecting rod assembly 23 from interfering with the second fixing member 34.

[0041] Besides hooks, the first fixing member 33 and the second fixing member 34 can also be fixed and pressing pieces. The fixed and pressing pieces respectively press and fix the two ends of the linear elastic element such as the elastic rope 31 or a spring, to the main frame 11 and the connecting rod assembly 23. The fixed and pressing pieces are then fixedly connected to the main frame 11 and the connecting rod assembly 23 via connecting members such as screws.

[0042] In this embodiment, the second elastic tail end 312 of the elastic rope 31 is connected to the connecting rod assembly 23 of the movement portion. In other embodiments, the second elastic tail end of the linear elastic element can also be connected to the foot frame assembly 22 of the movement portion. Correspondingly, the second fixing member 34 is also arranged on the foot frame assembly 22 of the movement portion 2.

[0043] Referring to FIGS. 4, 5, 7, and 8, in this embodiment, during use of the abdominal exerciser, the user can swing the legs up and down centered on the hips, as well as left and right, thus creating a compound movement centered on the hips. This can exercise the abdomen, waist, legs, and hips, meeting the user's diverse exercise needs. The up and down, left and right swinging directions of the legs are referenced to the user. That is, up and down swinging refers to lifting or lowering the legs, and left and right swinging refers to swinging the legs to the user's left or right side.

[0044] An extension direction of the connecting rod assembly 23 is defined as an X-axis direction, a direction of the two handles 12 relative to each other is defined as a Y-axis direction, and a direction perpendicular to both the X-axis direction and the Y-axis direction is defined as a Z-axis direction. The connecting rod assembly 23 is connected to the main frame 11 via a rotating mechanism 4. The rotating mechanism 4 can separately rotate around the Y-axis direction and the Z-axis direction, such that the movement portion 2 has a compound motion relative to the main frame 11, separately rotating around the Y-axis direction and the Z-axis direction. The user can achieve the purpose of compound movement centered on the hips. During use, because the movement portion 2 moves relative to the machine frame portion 1, the XYZ coordinate system also moves. More specifically, the X-axis direction and Z-axis direction are dynamically changing, while the Y-axis direction remains unchanged.

[0045] The rotating mechanism 4 includes a first rotating mechanism 41 and a second rotating mechanism 42, a rotation axis of the first rotating mechanism 41 extends along the Y-axis direction, a rotation axis of the second rotating mechanism 42 extends along the Z-axis direction, the connecting rod assembly 23 is connected to the second rotating mechanism 42 and is driven by the second rotating mechanism 42 to rotate around the Z-axis direction, the second rotating mechanism 42 is connected to the first rotating mechanism 41, the connecting rod assembly 23 and the second rotating mechanism 42 are driven by the first rotating mechanism 41 to rotate around the Y-axis direction, and the first rotating mechanism 41 is also connected to the main frame 11, such that respective rotations of the first rotating mechanism 41 and the second rotating mechanism 42 endow the movement portion 2 with a function of the compound motion. More specifically, the first rotating mechanism 41 includes a first rotating shaft 411 and two connecting members 414 fixedly connected to the main frame 11. The first rotating shaft 411 extends along the Y-axis direction, and the first rotating shaft 411 is connected to the two connecting members 414. The first rotating shaft 411 is externally provided with a first sleeve tube 412, and the first sleeve tube 412 is relatively rotatably connected to the first rotating shaft 411 via a first shaft sleeve 413. The second rotating mechanism 42 includes a second sleeve tube 422 fixedly connected to the first sleeve tube 412. A second rotating shaft 421 penetrates in the second sleeve tube 422 and the second rotating shaft 421 extends along the Z-axis direction. A second rotating shaft 421 is relatively rotatably connected to the second sleeve tube 422 via a second shaft sleeve 423, and the second rotating shaft 421 is further connected to the connecting rod assembly 23. The first rotating shaft 411 is a bolt connected to the two connecting members 414 via a nut. The connecting member 414 is a connecting piece fixedly arranged on the second main frame rod set 112. The first end of the second rotating shaft 421 is provided with an internal thread, which is connected to the second sleeve tube 422 via a bolt and the second shaft sleeve 423. The second end of the second rotating shaft 421 penetrates in the first connecting rod 231 of the connecting rod assembly 23 and is fixedly connected to the first connecting rod 231.

[0046] In the above embodiments, the elastic resistance mechanism 3 is a linear elastic structure formed by the elastic rope 31 and the roller 32. In other embodiments, the elastic resistance mechanism 3 may also be a torsion spring arranged at the first rotating mechanism and the second rotating mechanism. Specifically, a first torsion spring is provided between the first sleeve tube and the first rotating shaft to provide movement resistance around the Y-axis direction, and a second torsion spring is provided between the second sleeve tube and the second rotating shaft to provide movement resistance around the Z-axis direction, thereby providing corresponding movement resistance according to the movement direction of the movement portion 2.

[0047] The rotating mechanism 4 in the above embodiments is an independent rotating mechanism around the Y-axis and Z-axis formed by the first rotating mechanism 41 and the second rotating mechanism 42, so that the user can swing the legs up and down or left and right for exercise as needed, and can also perform compound swinging up and down, as well as left and right. In other embodiments, the rotating mechanism 4 may also be a universal shaft provided between the connecting rod assembly 23 and the main frame 11. The type of universal shaft is not limited and can be selected by those skilled in the art depending on actual conditions, such as a ball joint.

[0048] Although the present invention is specifically illustrated and described with reference to preferred implementations, those skilled in the art should understand that the rest part not described pertains to the prior art, and without departing from the spirit and scope of the present invention as defined in the appended claims, various changes made to the present invention in form and details fall within the protection scope of the present invention.