TWI846637B - Magnetic resistance leg lift machine - Google Patents

Abstract

A magnetically controlled resistance type leg-lifting machine comprises a base, a handrail frame with a handrail erected on the front and rear sections, and a seat frame assembly, a seat is arranged on the seat frame assembly, and a first end of a driving rod is pivoted on each of the two sides, a pedal is pivoted on the second end of the driving rod, and a linkage mechanism arranged on the rear side of the seat frame assembly links the two driving rods, so that the two driving rods are alternately arc-shaped with the pivot point of the seat frame assembly pivoted as a front and rear limit. The track swings, and at the same time, a swing assembly is set on each side of the base, one end of each swing assembly is hinged to the first end of the driving rod on the same side, and the other end is linked to a magnetically controlled resistance mechanism with a multiple belt pulley set. The magnetically controlled resistance mechanism is set at the front section of the base and provides resistance to the swing assembly; thereby, when the user steps on the two driving rods, the larger speed ratio generated by the multiple belt pulley sets can be used to obtain a larger resistance effect.

Description

Magnetic resistance leg lift machine

The present invention relates to a magnetically controlled resistance leg-lifting machine, which refers to a leg-lifting fitness equipment that has a resistance effect when performing interactive leg swinging fitness.

According to the conventional leg-lifting machine, as shown in the patent certificate numbers M469091, I573614, and I766793, it generally includes a base, a front handlebar bracket, a seat frame, a driving mechanism, a magnetically controlled resistance mechanism, and a linkage mechanism. The driving mechanism is composed of two actuating rods, one end of which is swingably connected to the two sides of the seat frame and the other end of which is hinged with two pedals. A sprocket and a chain are respectively assembled between the two sides of the seat frame and one end of the two actuating rods. The magnetically controlled resistance mechanism can be driven unidirectionally by the sprocket and generate a resistance, and the linkage mechanism allows the two actuating rods to swing in opposite directions. However, it has the following disadvantages: (1) The cost of the chain is too high, and it takes time to calibrate and adjust the chain wheel to ensure smooth rotation, which results in a long assembly time and high cost of the whole machine. (2) As shown in patent certificate numbers M469091 and I573614, the magnetically controlled resistance mechanism is a bidirectional direct induction eddy current type and has no inertia, so users are not used to using it.

Therefore, how to use new structural forms to truly improve the above shortcomings and conduct research and development of improved structures is indeed a goal that the relevant industries need to work hard on.

In view of the high cost of using a leg lift machine with a chain, and the time-consuming calibration and adjustment for smooth rotation of the chain, the assembly time is long, resulting in high cost of the whole machine, and the bidirectional eddy current and non-inertial magnetic resistance mechanism makes users unaccustomed to using it, making it difficult to sell.

The present invention provides a magnetic resistance type leg lifting machine, comprising: a base, wherein a handrail frame and a seat frame assembly are respectively erected on the front and rear sections thereof, a connecting rod is connected between the handrail frame and the seat frame assembly, and the seat frame assembly further comprises a front upright rod and a rear upright rod, and the handrail frame is provided with a handrail and a supporting rod; a seat is arranged on the seat frame assembly; two driving rods, which have a first end and a second end, and are pivoted on two sides of the seat frame assembly as a rotation fulcrum to swing in a forward and backward alternating arc track, and a pedal is pivoted on the second end. a linkage mechanism, comprising a swing seat and two linkage rods, the swing seat is pivoted on the seat frame assembly in a left-right symmetrical swinging manner, the lower end of each linkage rod is pivoted to the left and right sides of the swing seat, and the upper end thereof is pivoted to the first end of each driving rod, so that the two driving rods are swung back and forth in an alternating limited manner by the swing seat; two swing assemblies are arranged on both sides of the base, and the upper end of a rear swing rod is pivoted to the first end of each driving rod, the lower end of the rear swing rod is pivoted to a pivot piece, and the pivot piece is further pivoted to a lower swing The rear end of the movable rod; a magnetic control resistance mechanism is arranged on two sides of the front section of the base, and is linked by the front ends of the two downward swinging rods and provides resistance to the two downward swinging rods. The magnetic control resistance mechanism at least includes a first belt pulley pivoted on one side of the base, a first rotating wheel, a third belt pulley, a third rotating wheel, a second belt pulley pivoted on the other side of the base, a second rotating wheel, a fourth rotating wheel, a magnetic control wheel, and a magnetic seat on two sides of the periphery of the magnetic control wheel, wherein the first rotating wheel and the second belt pulley are The first pulley and the first rotating wheel are rotated on the same axis, the second rotating wheel and the third pulley are rotated on the same axis, the third rotating wheel and the magnetic control wheel are rotated on the same axis, the first pulley and the first rotating wheel are wrapped around a first transmission belt, the second pulley and the second rotating wheel are wrapped around a second transmission belt, and the third pulley and the third rotating wheel are wrapped around a third transmission belt, and the first pulley and the fourth rotating wheel are on the same axis and are respectively pivoted with a crank, and each crank is pivoted to the front end of the lower swing rod on the same side.

The effects of the present invention are: the linkage mechanism of the connecting rod type is quick and easy to assemble, the component and assembly costs are low, the price of the whole machine is relatively low, and it is easy to be favored by buyers and consumers; in addition, the multiple belt pulley sets of the magnetic control resistance mechanism are matched with the magnetic control wheel, which can expand the speed ratio, increase the resistance, have high stability and are easy to adjust and maintain, and the magnetic control wheel will generate inertia when rotating, which is a sports mode that athletes are more accustomed to using.

[The present invention]

10: Base

11: Handrails

12: Seat frame assembly

121: Front stand

122: Backstand

13: Connecting rod

14: Support rod

15: Handrails

16: Crossbar

17: Crossbar

18: Control Panel

19: Seats

20: Driving rod

201: First end

202: Second end

203: Ear

30: Pedal

40: Linkage mechanism

41: Swinging seat

42: Linkage rod

50: Swing assembly

51: Back swing lever

52: Joints

53: Downswing lever

60: Magnetic resistance mechanism

61: First pulley

62: First rotating wheel

63: First drive belt

64: Second pulley

65: Second rotating wheel

66: Second drive belt

67: Third pulley

68: Third rotating wheel

69: Third drive belt

70: Fourth rotating wheel

71: Magnetic control wheel

72: Magnetic seat

74: Crank

81: First idler adjustment assembly

82: Second idler adjustment assembly

83: Third idler adjustment assembly

90: Swing the grip

91: Articulated rod

100: Controller

Figure 1 is a three-dimensional combination diagram of the first embodiment of the present invention.

Figure 2 is a three-dimensional combination diagram from another viewing angle of the first embodiment of the present invention.

Figure 3 is a three-dimensional exploded view of the first embodiment of the present invention.

Figure 4 is a rear view of the linkage mechanism of the first embodiment of the present invention (removing the rear upright).

Figure 5 is a partially enlarged perspective view of the first embodiment of the present invention.

Figure 6 is a partial enlarged view of the first embodiment of the present invention from another viewing angle.

Figure 7 is a schematic diagram of the use of the first embodiment of the present invention.

Figure 8 is a three-dimensional combination diagram of the second embodiment of the present invention.

Figure 9 is a three-dimensional combination diagram from another viewing angle of the second embodiment of the present invention.

Figure 10 is a three-dimensional exploded view of the second embodiment of the present invention.

Figure 11 is a schematic diagram of the use of the second embodiment of the present invention.

In order to enable the review committee to have a deeper understanding and knowledge of the purpose, features and effects of this invention, please list the following embodiments in conjunction with the [Simple Description of Diagrams] and describe them in detail as follows:

First, as shown in the first embodiment of Figures 1 to 7, the present invention is a magnetic resistance leg lift machine, comprising: a base 10, wherein a handrail frame 11 and a seat frame assembly 12 are respectively provided at the front and rear sections thereof, and a horizontal bar 16, 17 which can be placed flat on the ground is fixed at the front and rear ends thereof, a connecting rod 13 is connected between the handrail frame 11 and the seat frame assembly 12, and the handrail frame 11 is provided with a handrail 15, a control panel 18, and a support rod 14, and the seat frame assembly 12 further includes a front upright rod 121 and a rear upright rod 122; a seat 19 is disposed on the front upright rod 121; two drive rods 20, each having a first end 201 and a second end 202, and each of the first end 201 is pivoted on two sides of the seat frame assembly 12 as a rotation fulcrum to swing in a forward and backward alternating arc track, and the second end 202 is pivoted with a pedal 30, and the A hinge 203 extends from the first end 201; a linkage mechanism 40 includes a swing seat 41 and two linkage rods 42. The swing seat 41 is pivoted on the rear upright rod 122 in a left-right symmetrical swinging manner. The lower end of each linkage rod 42 is pivoted to the left and right sides of the swing seat 41, and the upper end thereof is pivoted to the hinge 203 of each driving rod 20, so that the two driving rods 20 are mutually limited in front and back through the swing seat 41. Swing; two swing assemblies 50 are arranged on both sides of the base 10, and are respectively connected to the hinge 203 of each of the drive rods 20 by the upper end of a rear swing rod 51, and the lower end of the rear swing rod 51 is connected to a pivot 52, and the pivot 52 is further connected to the rear end of a lower swing rod 53, wherein the two pivots 52 are swingably pivoted on both sides of the connecting rod 13; a magnetically controlled resistance mechanism 60 is arranged at the front section of the base 10 The magnetic resistance mechanism 60 includes at least a first belt pulley 61 pivoted on one side of the base 10, a first rotating wheel 62, a third belt pulley 67, a third rotating wheel 68, a second belt pulley 64 pivoted on the other side of the base, a second rotating wheel 65, a fourth rotating wheel 70, a magnetic control wheel 71, and a third rotating wheel 68. and a magnetic base 72 on both sides of the periphery of the magnetic control wheel 71, wherein the magnetic base 72 is provided with a magnet, wherein the first belt pulley 61 and the first rotating wheel 62 are wrapped around a first transmission belt 63, and the second belt pulley 64 and the second rotating wheel 65 are wrapped around a second transmission belt 66, and the third belt pulley 67 and the third rotating wheel 68 are wrapped around a third transmission belt 69, and the first belt pulley 61 and the first rotating wheel 62 are wrapped around a first transmission belt 63, and the second belt pulley 64 and the second rotating wheel 65 are wrapped around a second transmission belt 66, and the third belt pulley 67 and the third rotating wheel 68 are wrapped around a third transmission belt 69. The fourth rotating wheel 70 is coaxial and is respectively pivoted with a crank 74, each crank 74 is pivoted to the front end of the lower swing rod 53 on the same side; through the above components, when the lower swing rod 53 swings, the first belt pulley 61 and the fourth rotating wheel 70 are rotated in sequence through the crank 74, and the first rotating wheel 62 is synchronously driven to rotate, and the first rotating wheel 62 then synchronously drives the second belt pulley 64 with the same axis to rotate. The second pulley 64 then synchronously drives the second rotating wheel 65 to rotate, the second rotating wheel 65 synchronously drives the third pulley 67 with the same axis to rotate, the third pulley 67 then synchronously drives the third rotating wheel 68 to rotate, the third rotating wheel 68 then synchronously drives the magnetic control wheel 71 with the same axis to rotate, when the magnetic control wheel 71 rotates, the magnetic seat 72 provides magnetic resistance to the magnetic control wheel 71.

The upper end of the connecting rod 42 and the upper end of the rear swing rod 51 are pivotally connected to the hinge 203 with the same axis.

The first belt pulley 61, the first rotating wheel 62, the second belt pulley 64, and the fourth rotating wheel 70 are pivoted on the connecting rod 13, and the second rotating wheel 65, the third belt pulley 67, the third rotating wheel 68, the magnetic control wheel 71, and the magnetic seat 72 are pivoted on the handrail frame 11.

A controller 100 is disposed on the handrail frame 11, and the controller 100 pulls the magnetic base 72 via a rope, so that the magnetic base 72 swings closer to or farther away from the magnetic control wheel 71.

The connecting rod 13 is provided with a first idler wheel adjustment assembly 81 to press against the first transmission belt 63, and the armrest frame 11 is provided with a second idler wheel adjustment assembly 82 and a third idler wheel adjustment assembly 83 to press against the second transmission belt 66 and the third transmission belt 69 respectively.

As shown in Figures 8 to 11, the support rod 14 is pivoted with a lower section of a swing handle 90 on both sides, and the lower end of the swing handle 90 is pivoted to the front end of a pivot rod 91, and the rear end of the pivot rod 91 is pivoted to the crank 74.

Based on the above structure and assembly design, the usage of the present invention is described as follows:

(1) First, as shown in the first embodiment of FIGS. 1 to 7, when using the first embodiment, the user holds the armrest 15 with both hands and steps on the pedal 30 with both feet, and sits on the seat 19 to perform the alternating leg lifting action. At this time, the linkage mechanism 40 on the rear upright 122 swings symmetrically left and right, so that the two drive rods 20 swing in an arc track with opposite limiting positions. At the same time, when the two drive rods 20 swing, the swing assembly 50 is linked in sequence. After that, the swing rod 51, the pivot 52, and the lower swing rod 53 are linked to rotate all the components of the magnetic control resistance mechanism 60, and the magnetic attraction of the magnetic seat 72 generates resistance to the rotation of the magnetic control wheel 71, and through the large speed ratio generated by the multiple belt pulleys, the feedback is reversed and sequentially fed back to the two driving rods 20, so that the athlete feels greater resistance when applying force to swing the two driving rods 20, so as to achieve the fitness effect of the legs.

(2) Secondly, in the second embodiment shown in Figures 8 to 11, in addition to the above description (1), a swing handle 90 is added on each side of the handrail frame 11 for both hands to hold, and the swing handle 90 is also swung back and forth alternately by the swing of the crank 74.

Through the structure of the above-mentioned specific embodiment, the present invention can obtain the following benefits:

(I) In both the first and second embodiments, the cross-leg lifting action can be used to effectively stretch the hip, knee, and ankle joints, and stretch the core muscles such as the abdomen and buttocks.

(ii) In the second embodiment, in addition to retaining the advantages described in (i), the hand can be crossed and swung back and forth to stretch the forearms, upper arms, triceps and other muscle groups. Therefore, it can be decided whether to install the second swing grip 90 according to the buyer or market demand to obtain a larger sales market.

(III) The connecting rod type linkage mechanism 40 is quick and easy to assemble, has low component and assembly costs, and has a competitive price for the whole machine, which is easily favored by buyers and consumers.

(IV) The magnetically controlled resistance mechanism 60 is a multiple belt pulley set with a magnetically controlled wheel 71, which can expand the speed ratio, increase resistance, have high stability and are easy to adjust and maintain; and the magnetically controlled wheel 71 has inertia when rotating, which is a sports mode that athletes are more accustomed to using.

In summary, the present invention can effectively solve the shortcomings of knowledge creation and can be easily understood and implemented by ordinary knowledgeable people in the relevant technical field. However, the above is only a preferred embodiment of the present invention and should not be used to limit the scope of implementation of the present invention; that is, all equivalent changes and modifications made according to the scope of the patent application of the present invention should still be within the scope of the patent of the present invention.

10: Base

11: Handrails

12: Seat frame assembly

121: Front stand

122: Backstand

13: Connecting rod

14: Support rod

15: Handrails

16: Crossbar

17: Crossbar

18: Control Panel

19: Seats

20: Driving rod

201: First end

202: Second end

203: Ear

30: Pedal

40: Linkage mechanism

41: Swinging seat

42: Linkage rod

50: Swing assembly

51: Back swing lever

52: Joints

53: Downswing lever

60: Magnetic resistance mechanism

61: First pulley

62: First rotating wheel

63: First drive belt

67: Third pulley

68: Third rotating wheel

69: Third drive belt

71: Magnetic control wheel

72: Magnetic seat

74: Crank

81: First idler adjustment assembly

83: Third idler adjustment assembly

100: Controller

Claims (10)

A magnetically controlled resistance leg-lifting machine, comprising: A base, wherein a handrail frame and a seat frame assembly are respectively erected at the front and rear sections thereof, a connecting rod is connected between the handrail frame and the seat frame assembly, and the seat frame assembly further includes a front upright rod and a rear upright rod, and the handrail frame is provided with a handrail and a supporting rod; A seat is mounted on the seat frame assembly; Two driving rods, each having a first end and a second end, with each first end pivoted on two sides of the seat frame assembly as a rotation fulcrum to swing in an alternating arc track forward and backward, and a pedal pivoted on the second end; A linkage mechanism includes a swing seat and two connecting rods. The swing seat is pivotally mounted on the seat frame assembly in a left-right symmetrical swinging manner. The lower end of each connecting rod is pivotally connected to the left and right sides of the swing seat, and the upper end is pivotally connected to the first end of each driving rod, so that the two driving rods are swung back and forth in an alternating and limited manner by the swing seat; Two swing assemblies are arranged on two sides of the base, and are respectively pivoted to the first end of each driving rod by the upper end of a rear swing rod, and the lower end of the rear swing rod is pivoted to a pivot piece, and the pivot piece is pivoted to the rear end of the lower swing rod; A magnetically controlled resistance mechanism is arranged on two sides of the front section of the base, and is linked by the front ends of the two lower swing rods and provides resistance to the two lower swing rods. The magnetically controlled resistance mechanism at least includes a first belt pulley pivoted on one side of the base, a first rotating wheel, a third belt pulley, a third rotating wheel, a second belt pulley pivoted on the other side of the base, a second rotating wheel, a fourth rotating wheel, a magnetically controlled wheel, and a magnetic base on two sides of the periphery of the magnetically controlled wheel, wherein the first rotating wheel and the second belt pulley are in the same The first pulley and the first rotating wheel are rotated on the same axis, the second rotating wheel and the third pulley are rotated on the same axis, the third rotating wheel and the magnetic control wheel are rotated on the same axis, the first pulley and the first rotating wheel are wrapped around a first transmission belt, the second pulley and the second rotating wheel are wrapped around a second transmission belt, and the third pulley and the third rotating wheel are wrapped around a third transmission belt, and the first pulley and the fourth rotating wheel are on the same axis and are respectively pivoted with a crank, and each crank is pivoted to the front end of the lower swing rod on the same side. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, the seat is arranged on the front upright. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, the swing seat is pivoted on the rear upright. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, a hinge is extended from the first end of the driving rod, and the upper end of the connecting rod and the upper end of the rear swing rod are connected to the hinge with the same axis. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, the two pivoting parts are pivotally mounted on the two sides of the connecting rod. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, a magnet is installed in the magnetic base. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, the first belt pulley, the first rotating wheel, the second belt pulley, and the fourth rotating wheel are pivoted on the connecting rod, and the second rotating wheel, the third belt pulley, the third rotating wheel, the magnetic control wheel, and the magnetic seat are pivoted on the armrest. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, a controller is installed on the armrest, and the controller pulls the magnetic base through a rope to make the magnetic base swing closer to or away from the magnetic wheel. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, the connecting rod is provided with a first idler adjustment assembly to press against the first transmission belt, and the armrest is provided with a second idler adjustment assembly and a third idler adjustment assembly to press against the second transmission belt and the third transmission belt respectively. According to the magnetic resistance leg-lifting machine described in Item 1 of the patent application, a swing handle lower section is pivoted on both sides of the support rod, and the lower end of the swing handle is pivoted to the front end of a pivot rod, and the rear end of the pivot rod is pivoted to the crank.

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