TWM465938U - Fitness equipment resistance adjustment mechanism - Google Patents

Description

Resistance adjustment mechanism for fitness equipment

This creation is related to fitness equipment, especially a resistance adjustment mechanism for fitness equipment.

Currently, fitness equipment (such as exercise bikes or elliptical machines) widely used in the market is usually equipped with at least one flywheel, and the main function is to provide appropriate resistance during the operation of the fitness equipment (especially the exercise bicycle), so that the user can Adjust according to your own training needs to achieve the expected training results.

In order to increase the user's exercise load, the general fitness equipment will also be equipped with a resistance adjustment mechanism, so that the user can adjust the resistance of the flywheel when it rotates according to its own needs. With regard to the prior art of the resistance adjustment mechanism, for example, the US Patent Publication No. 2008/0096725 and the Patent No. 2012/0088638 both adjust the resistance of the flywheel by changing the relative position between the magnet and the flywheel. However, the two conventional patent cases also have the problems of complicated structure and difficult operation, and thus there is a need for improvement.

The main purpose of the present invention is to provide a resistance adjusting mechanism for a fitness equipment, which has the characteristics of simple structure and convenient operation.

In order to achieve the above object, the first resistance adjusting mechanism provided by the present invention comprises an adjusting unit and a resistance unit. The adjusting unit has an adjusting screw, and the adjusting screw is rotatably disposed in a frame of the fitness equipment, the frame is provided with a flywheel; the resistance unit has a magnet fixing seat and at least two magnets, and the magnet fixing seat Screw is set in this adjustment The bottom end of the screw is such that the magnet holder can be driven up and down by the adjusting screw to be displaced up and down with respect to the flywheel. The two magnets are fixed to the magnet holder and are oppositely located on opposite sides of the flywheel, and have opposite polarities. A magnetoresistive effect is generated on the flywheel.

Therefore, the first resistance adjusting mechanism of the present invention uses the adjusting screw to drive the resistance unit to generate an up-and-down displacement with respect to the flywheel, so that the resistance of the flywheel can be easily and quickly achieved.

In order to achieve the above object, the second resistance adjusting mechanism provided by the present invention comprises an adjusting unit and a resistance unit. The adjusting unit has a steel cable, a supporting base, and a driving rod. The steel cable is disposed on the frame. The supporting base is fixed to the frame and has a fixed shaft. The driving rod is pivotally connected to the fixed shaft of the supporting frame. And connecting the bottom end of the cable, so that the driving rod is driven by the cable to pivot with the fixed shaft as an axis; the resistance unit has a magnet fixing seat and at least two magnets, and the magnet fixing base is pivotally connected to One end of the driving rod is such that the magnet fixing base can be driven up and down by the driving rod to be vertically displaced relative to the flying wheel, and the two magnets are fixed to the magnet fixing seat and oppositely located on opposite sides of the flying wheel, and have opposite polarities. Used to create a magnetoresistance effect on the flywheel.

Therefore, the second resistance adjusting mechanism of the present invention uses the cable to drive the resistance unit to generate an up-and-down displacement with respect to the flywheel, so that the resistance received by the flywheel can easily and quickly achieve the adjustment effect.

10‧‧‧Fitness equipment

12‧‧‧Rack

122‧‧‧Base

124‧‧‧ seatpost

126‧‧‧ pole

128‧‧‧Support rod

14‧‧‧Cushion set

16‧‧‧Flywheel

18‧‧‧Handrail group

20‧‧‧Resistance Adjustment Agency

30‧‧‧Adjustment unit

32‧‧‧Adjusting screw

34‧‧‧ knob

40‧‧‧resistance unit

41‧‧‧Magnetic mount

412‧‧‧ top board

414‧‧‧Snail

416‧‧‧ side panel

418‧‧‧First long trough

42‧‧‧ magnet

43‧‧‧Support board

432‧‧‧Second long trough

44‧‧‧cross link

50‧‧‧Resistance adjustment agency

60‧‧‧Adjustment unit

61‧‧‧ support

612‧‧‧Support board

614‧‧‧Fixed shaft

616‧‧‧ Connecting rod

62‧‧‧Steel cable

63‧‧‧Handles

64‧‧‧ drive rod

642‧‧‧Abutment

65‧‧‧Flexible parts

70‧‧‧resistance unit

72‧‧‧Magnetic mount

722‧‧‧ side panels

74‧‧‧ magnet

Fig. 1 is a perspective view of a fitness apparatus to which the first embodiment of the present invention is applied.

Fig. 2 is a perspective view showing the first embodiment of the creation.

Figure 3 is a front elevational view of the first embodiment of the creation, mainly showing that the resistance unit is relatively close to the flywheel status.

Figure 4 is a side view of the first embodiment of the creation, mainly showing the state in which the resistance unit is relatively close to the flywheel.

Figure 5 is similar to Figure 3 and mainly shows the state in which the resistance unit is relatively far from the flywheel.

Figure 6 is similar to Figure 4 and mainly shows the state in which the resistance unit is relatively far from the flywheel.

Figure 7 is a perspective view of a fitness apparatus to which the second embodiment of the present invention is applied.

Figure 8 is a perspective view of the second embodiment of the creation.

Figure 9 is a side view of the second embodiment of the creation, mainly showing the state in which the resistance unit is relatively close to the flywheel after the handle is pressed down.

Figure 10 is similar to Figure 9, which mainly shows the state in which the resistance unit is relatively far away from the flywheel after the handle is pushed up.

Referring to FIG. 1 , in order to apply the fitness equipment 10 of the first embodiment of the present application, the fitness equipment 10 shown in the figure mainly comprises a frame 12 having a base 122 , a rod 124 and two poles 126 . And a support rod 128, the seat post 124 is fixed upright in the middle of the base 122 for mounting a mat set 14, and the two poles 126 are erectly fixed to the front end of the base 122 for mounting a flywheel 16 The rear end of the support rod 128 is connected to the rear end of the base 122 and is obliquely connected to the seat post 124 and the two vertical rods 126. The front end of the support rod 128 is used for mounting an armrest group 18. Since the exercise equipment 10 is a conventional technology, other detailed structures and operations will not be described herein.

Please refer to FIG. 2 again. The resistance adjusting mechanism 20 of the first embodiment of the present invention includes an adjusting unit 30 and a resistance unit 40.

Referring to FIGS. 2 to 4, the adjusting unit 30 has an adjusting screw 32 and a knob 34. The adjusting screw 32 passes through the support rod 128 of the frame 12 and protrudes from the support rod at the bottom end thereof. The bottom surface of the 128 is fixed to the top end of the adjusting screw 32 for driving the adjusting screw 32 to rotate in place.

Referring to FIGS. 2 to 4, the resistance unit 40 has a magnet holder 41, six magnets 42, two support plates 43, and two cross links 44. The magnet holder 41 has a top plate 412, a screw 414, and two side plates 416. The screw 414 is fixed to the top surface of the top plate 412 and is screwed to the bottom end of the adjusting screw 32. The two side plates 416 are oppositely fixed to the top plate 412 and are located on the left and right sides of the flywheel 16; the magnets 42 are paired in pairs. Each side plate 416 fixed to the magnet holder 41 faces one side of the flywheel 16 (that is, the inner side of each side plate 416), and each of the oppositely disposed magnets 42 has an opposite polarity for generating magnetic force to the flywheel 16. The top end of the two support plates 43 is oppositely fixed to the bottom edge of the support rod 128 of the frame 12 and located on the left and right sides of the adjusting screw 32; the top and bottom ends of each cross link 44 are respectively pivotally supported. The bottom end of the plate 43 and the top plate 412 of the magnet holder 41.

Please refer to Figures 5 and 6. When the user wants to reduce the resistance of the flywheel 16 during the rotation, the knob 34 is rotated to drive the adjustment screw 32 to rotate in place. At this time, the magnet holder 41 will pass through the screw. The screwing relationship between the block 414 and the adjusting screw 32 moves upward along the axial direction of the adjusting screw 32. During the movement of the magnet fixing base 41, one of the bottom ends of the cross-links 44 and one of the top ends thereof The first long groove 418 of one of the magnet fixing bases 41 and the second long groove 432 of one of the supporting plates 43 are respectively moved laterally to gradually increase the opening angle of each of the cross links 44 for providing the magnet fixing base 41. Good displacement stability. On the other hand, during the movement of the magnet holder 41, the magnets 42 change the relative position with the flywheel 16, so that the magnetic field subjected to the rotation of the flywheel 16 changes. And to achieve the effect of adjusting the resistance.

Please refer to FIGS. 7 and 8 again. The resistance adjusting mechanism 50 of the second embodiment of the present invention includes an adjusting unit 60 and a resistance unit 70.

Referring to FIG. 9 , the adjustment unit 60 has a support base 61 , a wire rope 62 , a handle 63 , and a drive rod 64 . The support base 61 has two support plates 612, a fixed shaft 614, and two connecting rods 612. The two support plates 612 are oppositely fixed to the bottom edge of the support rod 128 of the frame 12, and the fixed shaft 614 is fixed between the two support plates 612. The top end of each of the connecting rods 616 is pivotally connected to the front end of a support plate 612; the steel cable 62 is embedded in the support rod 128 of the frame 12, and the top and bottom ends of the support rod 128 are respectively passed through the top and bottom sides of the support rod 128; The handle 63 is pivotally connected to the top surface of the support rod 128 of the frame 12 and connected to the top end of the cable 62 for pulling or releasing the cable 62. The drive rod 64 is pivotally connected to the fixed shaft 614 of the support base 61 and connects the cable 62 with the front end thereof. The bottom end. In addition, the adjusting unit 60 further has an elastic member 65 (for example, a torsion spring), and the elastic member 65 is sleeved on the fixing shaft 614 of the supporting base 61, and the front end of the elastic member 65 abuts against the supporting base 61. The bottom edge of a support plate 612, the rear end of the elastic member 65 abuts against one of the abutment portions 642 of the drive rod 64.

The resistance unit 70 has a magnet holder 72 and six magnets 74. The magnet fixing base 72 has two spaced apart side plates 722. The two side plates 722 are located on opposite sides of the flywheel 16, and the front and rear ends of each side plate 722 are respectively pivotally connected to the connecting rod 616 of the supporting base 61 and the rear end of the driving rod 64. The magnet fixing base 72 is driven by the driving rod 64 to be displaced up and down with respect to the flywheel 16; the magnets 74 are fixed in pairs on the side plates 722 of the magnet fixing base 72 toward one side of the flywheel 16 (that is, the side plates) The inner side of the inner wall 722, and each of the oppositely disposed magnets 74 have opposite polarities for generating a magnetoresistance effect on the flywheel 16.

Referring to FIG. 10, when the user wants to reduce the resistance of the flywheel 16 during the rotation, the wire 62 is pulled up by pushing up the handle 63, and the drive rod 64 is pulled by the cable 62 at this time. Pivoting with the fixed shaft 614 as the axis, and during the pivoting process The middle of the magnet holder 72 is displaced upwards, so that the relative position between the magnets 74 and the flywheel 16 can be changed, so that the magnetic field received by the flywheel 16 is changed to achieve the effect of adjusting the resistance, and the other is On the other hand, during the movement of the driving rod 64 to move the magnet fixing base 72, the elastic member 65 provides appropriate thrust to the driving rod 64, so that the driving rod 64 can easily move the magnet fixing base 72 upward to reduce the user. A labor-saving effect is achieved by the burden of operation.

In summary, the resistance adjusting mechanisms 20 and 50 of the present invention respectively use the adjusting screw 32 or the cable 62 to move the magnet fixing bases 41 and 72 so that the magnets 42 and 74 can move with the magnet fixing seats 41 and 72. The operation of the flywheel 16 not only effectively simplifies the overall structure, but also can easily and quickly adjust the magnitude of the magnetoresistance of the flywheel 16 during rotation according to the needs of the user, so as to achieve the purpose of the creation.

16‧‧‧Flywheel

20‧‧‧Resistance Adjustment Agency

30‧‧‧Adjustment unit

32‧‧‧Adjusting screw

34‧‧‧ knob

40‧‧‧resistance unit

41‧‧‧Magnetic mount

42‧‧‧ magnet

43‧‧‧Support board

44‧‧‧cross link

412‧‧‧ top board

414‧‧‧Snail

416‧‧‧ side panel

Claims (8)

A resistance adjusting mechanism for a fitness equipment, the fitness equipment includes a frame and a flywheel rotatably disposed on the frame, the resistance adjusting mechanism includes: an adjusting unit having an adjusting screw, the adjusting screw can be in place Rotatingly passing through the frame; and a resistance unit having a magnet fixing seat and at least two magnets, the magnet fixing seat is screwed to the bottom end of the adjusting screw, and the two magnets are fixed to the magnet fixing seat and oppositely Located on either side of the flywheel, the two magnets have opposite polarities. The resistance adjustment mechanism of the fitness equipment according to claim 1, wherein the resistance unit further has two support plates and two cross links, the two support plates are oppositely fixed to the frame and located on two sides of the adjusting screw, respectively The top and bottom ends of the cross link are respectively pivotally connected to the support plate and the magnet fixing seat. The resistance adjusting mechanism of the fitness equipment according to claim 2, wherein the magnet fixing base has a top plate, a screw block, and two side plates, wherein the top plate is pivotally connected to a bottom end of each of the cross links, and the screw block is fixed to The top surface of the top plate is screwed to the bottom end of the adjusting screw, and the two side plates are oppositely fixed on two sides of the top plate and are located on two sides of the flywheel; each magnet is fixed on one side of the side plate toward one side of the flywheel . The resistance adjusting mechanism of the fitness equipment according to claim 1, wherein the adjusting unit further has a knob fixed to the top end of the adjusting screw. A resistance adjusting mechanism for a fitness equipment, the fitness equipment comprising a frame and a flywheel rotatably disposed on the frame, the resistance adjusting mechanism comprising: An adjusting unit has a supporting base, a steel cable, and a driving rod fixed to the frame and having a fixed shaft, the steel cable is disposed on the frame, and the driving rod is pivotally fixed to the supporting frame The shaft is connected to the bottom end of the cable; and a resistance unit has a magnet holder and at least two magnets. The magnet holder is pivotally connected to one end of the driving rod, and the two magnets are fixed to the magnet holder and are oppositely located On both sides of the flywheel, the two magnets have opposite polarities. The resistance adjusting mechanism of the fitness equipment according to claim 5, wherein the adjusting unit further has an elastic member, and one end of the elastic member abuts against one of the abutting portions of the driving rod. The resistance adjustment mechanism of the fitness equipment according to claim 6, wherein the support base has two support plates and two links, the two support plates are oppositely fixed to the frame and the fixed axis is disposed between the two support plates. The two ends of the connecting rod are respectively pivotally connected to a supporting plate and the magnet fixing seat; the elastic member is sleeved on the fixing shaft of the supporting base, and the two ends thereof respectively abut one of the supporting seats The support plate and the abutting portion of the driving rod. The resistance adjusting mechanism of the fitness equipment according to claim 5, wherein the adjusting unit further has a handle pivotally connected to the frame and connected to the top end of the cable.