Stable swing structure of a twist and step machine

Abstract

A stable swing structure of a twist and step machine, which includes a sheet shaped torsional elastic piece with elastic deformation ability, the torsional elastic piece has a first end fixed to a base and a second end opposite to the first end, a fixing seat connected to the torsional elastic piece, located close to the second end, far away from the first end, and defined with a receiving slot, a swing assembly disposed in the receiving slot and swings in the receiving slot, and a side plate connected to the swing assembly and swings along with the swing assembly.

Description

[Technical Field]

[0001] This invention relates to a fitness equipment, and more particularly to a stable swing structure for a waist twisting stepper. [Previous Technology]

[0002] Conventional steppers, such as those shown in Republic of China Patent Publication No. M256196, are assembled by a base, a connecting rod and a rotatable joint. However, all of the above components are made of rigid materials and are connected by screws. As a result, if the usage time is extended, the connecting rod will easily loosen, gaps will be generated, and even noise or damage may occur.

[0003] In addition, the above structure is relatively complex and not easy to assemble. Therefore, a simple, stable, non-loose, and non-damaged pendulum structure is needed. [Summary of the Invention]

[0004] The present invention provides a stable swing structure for a waist twisting stepper, the main purpose of which is to prevent the structure from loosening or being damaged.

[0005] To achieve the aforementioned objective, the present invention provides a stable swing structure for a waist-twisting stepper, comprising:

[0006] A torsion spring sheet, which is in the form of a sheet and has elastic deformation capability, the torsion spring sheet having a first end and a second end opposite to each other, the first end being for locking to a base;

[0007] A fixing seat is attached to the torsion spring, the fixing seat is closer to the second end and farther from the first end, and the fixing seat has a receiving groove;

[0008] A swing assembly is disposed in the receiving groove, the swing assembly being allowed to swing within the receiving groove; and

[0009] One side plate is attached to the swing assembly and is provided to swing with the swing assembly.

[0010] As can be seen from the foregoing, since the torsion spring is a sheet-like body and has elastic deformation capability, the torsion spring is easier to torsion. In addition, the fixed seat is combined with the torsion spring, and the swing component is disposed in the receiving groove of the fixed seat. Therefore, the torsion spring can effectively dissipate the force transmitted to the swing component when the user steps on the stepper, thereby increasing the cushioning effect and preventing the component from loosening or creating gaps.

Implementation Method

[0011] This invention provides a stable swing structure for a waist-twisting stepper, as shown in Figures 1A-3, including:

[0012] A torsion spring 10 is sheet-shaped and has elastic deformation capability. The torsion spring 10 is, for example, but not limited to, a steel sheet, a titanium alloy sheet, an aluminum alloy sheet, or a carbon fiber composite plate. The torsion spring 10 has a first end 10A and a second end 10B opposite to each other. The first end 10A has a first width D1, and the second end 10B has a second width D2. The first width D1 is greater than the second width D2. The torsion spring 10 has a first side 10C and a second side 10D opposite to each other. The first side 10C and the second side 10D each have at least one first inclined edge 1. 1. The positions of the two first inclined sides 11 are corresponding to each other, so that the torsion spring 10 has a first tapered section 12. The first tapered section 12 may be the whole or part of the torsion spring 10. The torsion spring 10 has a top surface 13 and a bottom surface 14 opposite to each other. In this embodiment, the first inclined sides 11 extend to the second end 10B. The first end 10A is used to lock onto a fixing part 91 of a base 90. The torsion spring 10 is trapezoidal. The base 90 includes, for example but not limited to, the tube body and shell of a stepper. The fixing part 91 may be a tube body placed on the ground.

[0013] A fixing seat 20 is attached to the torsion spring 10. The fixing seat 20 is closer to the second end 10B and farther from the first end 10A. The fixing seat 20 has a receiving groove 21. In this embodiment, the fixing seat 20 is attached to the second end 10B. The fixing seat 20 has a top end 22 and a bottom end 23 opposite to each other. The bottom end 23 abuts against the top surface 13 of the torsion spring 10. The receiving groove 21 has an opening 211 facing the top surface 13. The two adjacent sides of the receiving groove 21 each have a through portion 24. The fixing seat 20 is made of a material with toughness and limited elastic deformation capability, such as, but not limited to, nylon plastic, polyurethane, carbon fiber composite material, etc.

[0014] A locking assembly 30 has a first piece 31, a second piece 32, two bolts 33 and two nuts 34. The first piece 31 abuts against the top end 22 of the fixing seat 20, and the second piece 32 abuts against the bottom surface 14 of the torsion spring 10. One of the bolts 33 passes through the first piece 31, one of the through portions 24 and the second piece 32, and is locked to one of the nuts 34. The other bolt 33 passes through the first piece 31, the other through portion 24 and the second piece 32, and is locked to the other nut 34, so that the fixing seat 20 is engaged with the torsion spring 10.

[0015] A swing component 40 is disposed in the receiving groove 21 of the fixed base 20. The swing component 40 is provided to swing within the receiving groove 21. The swing component 40 is generally spherical. In this embodiment, the swing component 40 can swing in multiple directions. The swing component 40 is, for example, but not limited to, a ball joint. The hardness of the swing component 40 is higher than that of the fixed base 20. The material of the swing component 40 is, for example, but not limited to, stainless steel.

[0016] A side plate 50, which is a sheet-like body, is made of, but is not limited to, steel sheet, titanium alloy sheet, aluminum alloy sheet, or carbon fiber composite plate. The side plate 50 has a moving end 50A and a connecting end 50B. The moving end 50A is connected to the swing assembly 40, allowing the side plate 50 to swing with the swing assembly 40. The width of the connecting end 50B is greater than the width of the moving end 50A. The side plate 50 is directly or indirectly connected to a swing portion 92 of the base 90. Direct connection means the side plate 50 is directly locked to the base 90; indirect connection means the side plate 50 is connected to other... An object is locked to a base 90. The side piece 50 is attached to the base 90 closer to the connecting end 50B and farther from the moving end 50A. The side piece 50 can swing with the base 90. The side piece 50 has a left side 50C and a right side 50D. The left side 50C and the right side 50D each have at least one second inclined edge 51. The positions of the two second inclined edges 51 are corresponding to each other, so that the side piece 50 has a second tapered section 52. The second tapered section 52 can be the whole or part of the side piece 50. In this embodiment, the second inclined edge 51 extends to the moving end 50A. The side piece 50 is pentagonal.

[0017] In this embodiment, the swing assembly 40 has a swing member 41 and a connecting member 42. The swing member 41 is generally spherical and has a through hole 411. The connecting member 42 is inserted through and connected to the through hole 411. The moving end 50A of the side plate 50 has a through hole 53. The connecting member 42 is inserted through and connected to the through hole 53.

[0018] In this embodiment, the connecting end 50B is connected to a locking piece 60. The locking piece 60 is perpendicular to the extension direction of the side plate 50, so that the side plate 50 and the locking piece 60 are both L-shaped. The locking piece 60 is used to lock the swing portion 92 of the base 90.

[0019] Preferably, the locking plate 60 has an elongated hole 61 for a rod 93 to pass through.

[0020] As can be seen from the foregoing, since the torsion spring 10 is a sheet-like body and has elastic deformation capability, the torsion spring 10 is easier to torsion. In addition, the fixed base 20 is combined with the torsion spring 10, and the swing component 40 is disposed in the receiving groove 21 of the fixed base 20. Therefore, the torsion spring 10 can effectively dissipate the force transmitted to the swing component 40 when the user steps on the stepper, thereby increasing the cushioning effect and preventing the component from loosening or creating gaps.

[0021] Furthermore, since the width of the first end 10A of the torsion spring 10 is wider than the width of the second end 10B, the force on the first end 10A and the second end 10B is uneven. As a result, when the torsion spring 10 is subjected to external force, the narrower second end 10B will bear greater stress concentration, making the torsion spring 10 easier to torsion, so as to effectively dissipate the force of the user stepping on it and increase the cushioning effect.

[0022] Furthermore, since the torsion spring 10 has the first tapered section 12, a discontinuous stress distribution will be generated. When the stress is transmitted along the first inclined side 11 under the action of force, shear stress components will be generated. These shear stresses will promote the torsion spring 10 to twist, so as to effectively dissipate the force of the user stepping and increase the cushioning effect.

[0023] In addition, since the fixed base 20 is made of a material with elastic deformation capability, and the hardness of the swing component 40 is higher than that of the fixed base 20, the swing component 40 swings within the receiving groove 21 of the fixed base 20. Under the condition that the two exert forces on each other, it can be ensured that the swing component 40 is not easily damaged, thereby reducing costs.

[0024] Furthermore, the combination of the aforementioned torsion spring 10, fixed seat 20, swing assembly 40 and side plate 50 is simple and the structure is easy to understand. [Simplified Explanation of the Diagram]

[0025] Figure 1A is a perspective view of the stable pendulum structure of the present invention applied to a twisting stepper. Figure 1B is another perspective view of the stable pendulum structure of the present invention applied to a twisting stepper. Figure 1C is a partial perspective view of the stable pendulum structure of the present invention applied to a twisting stepper. Figure 2 is an exploded view of the stable pendulum structure of the twisting stepper of the present invention. Figure 3 is a combined perspective view of the stable pendulum structure of the twisting stepper of the present invention.

Claims

1. A stable oscillating structure for a waist-twisting stepper, comprising: A torsion spring, which is sheet-shaped and has elastic deformation capability, has a first end and a second end opposite to each other, the first end being locked to a base; a fixing seat, which is attached to the torsion spring, is closer to the second end and farther from the first end, and the fixing seat has a receiving groove; a swinging assembly, which is disposed in the receiving groove and is allowed to swing within the receiving groove; and a side sheet, which is attached to the swinging assembly and is allowed to swing with the swinging assembly.

2. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The first end has a first width, and the second end has a second width, wherein the first width is greater than the second width.

3. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The torsion spring has a first side and a second side opposite to each other, and the first side and the second side each have at least one first inclined edge. The positions of the two first inclined edges are corresponding to each other, so that the torsion spring has a first tapered section.

4. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The fixed seat is attached to the second end.

5. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The oscillating assembly has an oscillating member and a connecting member. The oscillating member is spherical and has a through hole. The connecting member is inserted through the through hole. The side plate has a through hole, and the connecting member is inserted through the through hole.

6. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The torsion spring has a top surface and a bottom surface with opposite orientations. The fixing base has a top surface and a bottom surface with opposite orientations. The bottom surface abuts against the top surface of the torsion spring. The receiving groove has a through portion on each of its two adjacent sides. It also has a locking assembly. The locking assembly has a first piece, a second piece, two bolts, and two nuts. The first piece abuts against the top surface of the fixing base. The second piece abuts against the bottom surface of the torsion spring. One bolt passes through the first piece, one of the through portions, and the second piece, and is locked to one of the nuts. The other bolt passes through the first piece, the other through portion, and the second piece, and is locked to the other nut.

7. The stable oscillating structure of the twisting stepper as described in claim 6, wherein, The receiving groove has an opening facing one of the top surfaces, the fixed base is made of a material with elastic deformation capability, and the rigidity of the swing component is higher than that of the fixed base.

8. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, This oscillating component can oscillate in multiple directions.

9. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The side plate has a moving end and a connecting end, the moving end being connected to the swing assembly, and the connecting end being used to move in sync with a swinging part of the base.

10. The stable oscillating structure of the twisting stepper as described in claim 9, wherein, The connecting end is connected to a locking plate, which is used to lock the swinging part of the base.

11. The stable oscillating structure of the twisting stepper as described in claim 9, wherein, The width of the connecting end is greater than the width of the moving end.

12. The stable oscillating structure of the twisting stepper as described in claim 1, wherein, The side panel has a left side and a right side, each having at least one second oblique edge. The positions of the two second oblique edges are corresponding to each other, giving the side panel a second tapering section.

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