TWM581923U - External magnetic resistance training device and bicycle training system using the same - Google Patents

Abstract

The present invention relates to an external magnetic resistance training device, which comprises a support frame, a mandrel fixed to the support frame, a sprocket rotatably disposed on the spindle, and a rotatably disposed on the spindle And a connecting wheel connecting the sprocket, a resistance wheel rotatably disposed on the support frame and connected to the transmission wheel through a transmission member (such as a belt or a chain), and a resistance wheel fixed on the resistance wheel shaft, wherein the resistance wheel There is a magnetic unit on the outer side, and the magnetic unit has a core adjacent to the resistance wheel and a coil wound around the iron core, and the resistance wheel is subjected to hysteresis by causing a magnetic field change around the core by applying current to the coil. Provide resistance to the sprocket through the drive wheel. In addition, the present invention further provides a bicycle training system using the aforementioned external magnetic resistance exerciser.

Description

External magnetic resistance training device and bicycle training system using same

This creation relates to a bicycle trainer, and in particular to an external magnetic resistance exerciser and a bicycle training system using the external magnetic resistance exerciser.

In order to be able to perform cycling without being affected by the weather or the environment, the more common way is to mount the bicycle on the bicycle trainer. When the rider pedals the pedal and drives the rear wheel to rotate, it can be driven synchronously. The resistance wheel rotates and the effect of simulating bicycle training is achieved by the resistance provided by the resistance wheel.

In addition to wind resistance or oil resistance, the conventional bicycle trainer has a resistance method of magnetic resistance, that is, hysteresis is generated by electric energy, and electronic control is compared with wind resistance or oil resistance. The technology has more resistance adjustment methods, so it can simulate the actual riding feeling more accurately, and can be more customized with the training simulation to achieve more accurate training results. However, such an electromagnetic trainer usually integrates a resistance source into the inside of the resistance wheel, which not only complicates the structure, but also makes assembly and maintenance relatively troublesome.

The main purpose of this creation is to provide an external magnetic resistance training device, which has a simple structure, convenient assembly and maintenance, and can save space for use.

In order to achieve the above main purpose, the magnetic resistance exerciser outside the present invention includes a support frame, a drive unit, a resistance unit, a transmission unit, and a magnetic unit. The driving unit has a spindle fixed to the support frame and a sprocket rotatably disposed on the spindle; the resistance unit has a resistance axle and a resistance wheel, and the resistance axle is rotatably provided In the support frame, the resistance wheel is fixed on the resistance wheel shaft and can rotate together with the resistance wheel shaft; the transmission unit has a transmission wheel and a transmission member, the transmission wheel is rotatably disposed on the spindle and coaxially connected to the sprocket The transmission member connects the transmission wheel and the resistance wheel shaft so that the two can be synchronized; the magnetic unit has a core bracket, an iron core and a coil, and the core bracket is disposed on the support frame, and the core assembly is provided The core support is adjacent to the outer side of the resistance wheel, and the coil is wound around the iron core. When a current is applied to the coil, a magnetic field change is generated around the iron core, and the resistance wheel is subjected to hysteresis. The gear is supplied to the sprocket through the transmission wheel.

It can be seen from the above that the magnetic resistance training device outside the creation provides the magnetic unit on the outer side of the resistance wheel, and is not integrated with the resistance wheel, thereby effectively simplifying the structure, which is convenient in assembly or maintenance.

Preferably, the iron core is present in a concave arc shape adjacent to one side of the resistance wheel, so that a fixed air gap is maintained between the iron core and the resistance wheel to increase the magnetic cutting area, and the resistance is not The wheel produces interference.

Preferably, the magnetic unit further has two positioning plates and at least two fixing bolts fixed to the support frame by welding, each of the positioning plates clamping the iron core, the at least two fixing bolts The second positioning plate and the iron core are inserted through the iron core bracket, so that the assembly and positioning of the iron core is completed.

Preferably, the magnetic unit further has two support bolts and two nuts. The two support bolts pass through the iron core bracket and the positioning plate and abut against the bottom surface of the iron core. The two nuts are disposed on the two supports. The bolts abut against the bottom surface of the two positioning plates, so that the iron core can be prevented from being adsorbed in the direction of the resistance wheel to cause a change in the air gap.

Preferably, the transmission wheel and the resistance wheel are located on opposite sides of the support frame, so that the weight of the support frame can be averaged.

Preferably, one end of the mandrel is provided with a quick release handle, and the other end of the mandrel is provided with a nut, so that the two rear forks of the bicycle can be conveniently mounted on the mandrel.

Preferably, the resistance unit, the transmission unit and the magnetic unit are collectively covered by a casing to obtain a protective effect, and the casing may further be provided with a holding portion for lifting and transporting the entire trainer to Place or store in a suitable place.

In addition, a second object of the present invention is to provide a bicycle training system using the aforementioned external magnetic resistance exerciser, which provides a bicycle having two rear forks, a large chainring and a chain. A lower fork is disposed at two ends of the mandrel, and the chain meshes with the large chainring and the sprocket. Thereby, when the rider steps on the left and right pedals to drive the large toothed disc to rotate, the sprocket is synchronously driven through the chain, and then the sprocket further drives the transmission wheel, and the transmission wheel transmits the transmission member The resistance wheel axle is driven (such as a belt or a chain) such that the resistance wheel rotates with the resistance wheel axle, and the resistance wheel provides a magnetoresistance effect to the sprocket through the transmission wheel.

The detailed construction, features, assembly or use of the external magnetic resistance exerciser and the bicycle training system provided therewith will be described in the detailed description of the subsequent embodiments. However, those of ordinary skill in the art should understand that the detailed description and specific embodiments of the present invention are merely used to illustrate the present invention and are not intended to limit the scope of the patent application.

The Applicant first describes here, and throughout the specification, including the embodiments described below and the claims of the claims, the nouns relating to directionality are based on the directions in the drawings. In the following embodiments, the same reference numerals will be given to the same or similar elements or structural features thereof.

Referring to FIGS. 1 to 3, the magnetic resistance exerciser 10 includes a support frame 20, a drive unit 30, a resistance unit 40, a transmission unit 50, and a magnetic unit 60.

The support frame 20 has a front bottom bar 22, a rear bottom bar 24, a front slant bar 26 and a rear slant bar 28. The front bottom bar 22 and the rear bottom bar 24 are spaced apart, and the two can be parallel or non-parallel to each other. The bottom end of the front slanting bar 26 is connected to the front bottom bar 22, and the bottom end of the rear slanting bar 28 is connected to the rear bottom bar 24, The top end of the front slanting rod 26 is connected to the top end of the rear slanting rod 28.

The drive unit 30 has a spindle 32 and a sprocket 34. The mandrel 32 is threaded and fixed to the top end of the slanting bar 28 behind the support frame 20. The left end of the mandrel 32 is provided with a quick release handle 36 (shown in FIG. 3), and the right end of the mandrel 32 is provided with a nut 38 ( As shown in FIG. 1 and FIG. 2, the sprocket 34 is rotatably sleeved on the mandrel 32 and located on the right side of the support frame 20 for engaging the chain 86 (shown in FIG. 6) so that the sprocket 34 is provided. It can be driven by the chain 86 to rotate relative to the mandrel 32. It should be noted that the sprocket 34 can be a single speed sprocket or a shifting sprocket, in this embodiment a shifting sprocket.

The resistance unit 40 has a resistance axle 42 and a resistance wheel 44. The resistance wheel shaft 42 is rotatably disposed in the center of the slanting rod 28 after the support frame 20; the resistance wheel 44 is sleeved and fixed to the resistance wheel shaft 42 and located on the left side of the support frame 20, so that the resistance wheel 44 can rotate together with the resistance wheel shaft 42.

The transmission unit 50 has a transmission wheel 52, an idler gear 54 and a transmission member 56 (such as a belt or a chain, here a belt is exemplified). The transmission wheel 52 is rotatably sleeved on the mandrel 32 and located on the right side of the support frame 20, and is coupled to the sprocket 34 in a coaxial manner so that the transmission wheel 52 can rotate together with the sprocket 34; the idler 54 is rotatably The slanting rod 28 is disposed behind the support frame 20 and located between the transmission wheel 52 and the resistance wheel shaft 42. The transmission member 56 is disposed around the transmission wheel 52, the resistance wheel shaft 42 and the idler pulley 54, so that the transmission wheel 52 and the resistance wheel shaft 42 pass through the transmission member. 56 can be synchronized.

The magnetic unit 60 has a core bracket 61, two positioning plates 65, a core 68 and a coil 69. As shown in FIGS. 3 and 4, the core bracket 61 has a vertical plate 63 and a vertical connecting vertical plate 63. The bottom plate 64 and the vertical plate 63 are fixed to the bottom end of the diagonal rod 28 after the support frame 20, and the four corners of the vertical plate 63 respectively have a first through hole 632, and the two ends of the bottom plate 64 respectively have a first bottom. Each of the positioning plates 65 has two positioning portions 66 opposed to each other and a supporting portion 67 connected between the two positioning portions 66. The top and bottom ends of each positioning portion 66 respectively have a second through hole 662 for supporting The portion 67 has a second bottom hole 672; the iron core 68 is composed of a plurality of laminated silicon steel sheets, the center of the iron core 68 is wound by a coil 69, and the two ends of the iron core 68 have a third and a third respectively. Perforation 682.

When assembled to the core holder 61, as shown in FIGS. 4 and 5, the core 68 is held by the two positioning portions 66 of the positioning plate 65, and then the two fixing bolts 70 respectively pass through the two positioning plates. The second through hole 662 of the positioning portion 66 of the 65 and the third through hole 682 of the core 68 are locked to the first through hole 632 of the vertical plate 63 of the core holder 61, so that the assembly and positioning of the iron core 68 is completed, and the core 68 is completed. After the assembly is completed, it is located outside the resistance wheel 44 and in close proximity to the resistance wheel 44. To maintain a fixed air gap with the resistance wheel 44 and to avoid interference with the resistance wheel 44, the top surface 684 of the core 68 (i.e., immediately adjacent to the resistance) One side of the wheel 44 is shown in a concave arc shape. Further, the top surface 684 of the core 68 having a concave arc shape has the same center point as the resistance wheel 44. In addition, the magnetic unit 60 further has two support bolts 71 and two nuts 72. Each of the support bolts 71 passes through the first bottom hole 642 of the bottom plate 64 of the seat body 62 and the second bottom hole 672 of the support portion 67 of the positioning plate 65. And the bottom of the core 68 is disposed on the bottom surface of the core 68. The nut 72 is disposed on the bottom surface of the support portion 67 of the positioning plate 65, so that the iron core 68 can be prevented from adsorbing in the direction of the resistance wheel 44. The change in the gap.

As can be seen from the above, when a current is applied to the coil 69, a magnetic field change is generated around the core 68, and the resistance wheel 44 is subjected to hysteresis to provide resistance to the sprocket 34 through the transmission wheel 52. As shown in FIG. 6, when the bicycle training system 80 is used in conjunction with the bicycle 82, the two rear lower forks 84 are firstly mounted on the left and right ends of the mandrel 32, and then fastened by the quick release handle 36 and the nut 38. Then, after the chain 86 is engaged with the large toothed disc 88 and the sprocket 34, the rider can start to step on the left and right pedals 90 to drive the large toothed disc 88 to rotate. At this time, the large toothed disc 88 is synchronized by the chain 86. The sprocket 34 is driven, and then the sprocket 34 further drives the transmission wheel 52. As shown in FIGS. 2 and 3, the transmission wheel 52 drives the resistance wheel shaft 42 through the transmission member 56 to rotate the resistance wheel 44 along with the resistance wheel shaft 42. By the resistance provided by the resistance wheel 44, the rider can achieve the effect of simulating bicycle training.

On the other hand, as shown in FIG. 1, the resistance unit 40, the transmission unit 50 and the magnetic unit 60 are collectively covered by a casing 73, and the housing 73 provides a protective effect to the aforementioned components, and the sprocket 34 is provided. It is located outside the housing 73 for assembly with the chain 86. Further, as shown in FIG. 7, the structure of the housing 73 can be varied, for example, a grip portion 74 is provided to allow the rider to lift the entire trainer 10 and carry it to a suitable place for display or storage.

In summary, the magnetic resistance exerciser 10 outside the present invention places the magnetic unit 60 on the outer side of the resistance wheel 44, and is not integrated with the resistance wheel 44, thereby effectively simplifying the structure, regardless of assembly or maintenance. It is convenient and can reduce the volume to save space.

10‧‧‧External magnetic resistance trainer

20‧‧‧Support frame

22‧‧‧ front pole

24‧‧‧ rear pole

26‧‧‧ front slant

28‧‧‧ rear slanting rod

30‧‧‧Drive unit

32‧‧‧ mandrel

34‧‧‧Sprocket

36‧‧‧ Quick release handle

38‧‧‧ Nuts

40‧‧‧resistance unit

42‧‧‧Resistance axle

44‧‧‧Resistance wheel

50‧‧‧Transmission unit

52‧‧‧Drive wheel

54‧‧‧ idler

56‧‧‧ Transmission parts

60‧‧‧Magnetic unit

61‧‧‧core bracket

63‧‧‧ 立板

632‧‧‧First perforation

64‧‧‧floor

642‧‧‧ first bottom hole

65‧‧‧ Positioning board

66‧‧‧ Positioning Department

662‧‧‧Second perforation

67‧‧‧Support

672‧‧‧second bottom hole

68‧‧‧ iron core

682‧‧‧ third perforation

69‧‧‧ coil

70‧‧‧ fixing bolts

71‧‧‧Support bolts

72‧‧‧ nuts

73‧‧‧Shell

74‧‧‧ Holding Department

80‧‧‧Bicycle training system

82‧‧‧Bicycle

84‧‧‧ rear fork

86‧‧‧Chain

88‧‧‧Spindle

90‧‧‧ pedal

Figure 1 is a perspective view of the magnetic resistance exerciser outside the creation.  2 is a perspective view of the magnetic resistance exerciser outside the creation of the housing after the housing is removed.  Fig. 3 is a perspective view of the magnetic resistance exerciser outside the creation of the outer casing after the housing is removed.  Figure 4 is an exploded perspective view of the resistance unit provided by the magnetic resistance exerciser outside the creation.  Figure 5 is a side view of the resistance unit provided by the magnetic resistance exerciser outside the creation.  Fig. 6 is a perspective view of the magnetic resistance training device used in conjunction with the bicycle.  Figure 7 is a perspective view of another magnetic housing of the magnetic resistance exerciser of the present invention.  

Claims (10)

An external magnetic resistance exerciser includes:  a support frame;  a driving unit having a spindle and a sprocket, the spindle is fixed to the support frame, and the sprocket is rotatably disposed on the spindle;  a resistance unit having a resistance wheel shaft and a resistance wheel, the resistance wheel shaft being rotatably disposed on the support frame, the resistance wheel being fixed to the resistance wheel shaft and rotatable together with the resistance wheel shaft;  a transmission unit having a transmission wheel and a transmission member rotatably disposed on the spindle and coaxially coupled to the sprocket, the transmission member connecting the transmission wheel and the resistance axle, the transmission wheel and the resistance The axles can be actuated simultaneously;  a magnetic unit having a core support, an iron core and a coil, wherein the core support is disposed on the support frame, the iron core is disposed on the outer side of the iron support and adjacent to the resistance wheel, and the coil is wound around the iron core.   The magnetic resistance exerciser according to claim 1, wherein the iron core is concavely curved adjacent to one side of the resistance wheel. The magnetic resistance training device of claim 1 , wherein the magnetic unit further has two positioning plates and two fixing bolts, and the core bracket has a vertical plate disposed on the supporting frame and a vertical connection of the vertical plate. The bottom plate, each of the positioning plates has two opposite positioning portions and a supporting portion connecting the two positioning portions, and the fixing bolts sequentially pass through the two positioning portions of the positioning plate and are locked on the iron core bracket a plate; the iron core is clamped between the two positioning portions of each of the positioning plates and is passed by the fixing bolts. The magnetic resistance training device of claim 3, wherein the magnetic unit further has two supporting bolts and two nuts, each of the supporting bolts is disposed on the bottom plate of the iron core bracket and a support portion of the positioning plate and is topped Corresponding to the bottom surface of the iron core, each of the nuts is disposed on a support bolt and abuts against a bottom surface of a support portion of the positioning plate. A magnetic resistance exerciser as claimed in claim 1, wherein the sprocket is a single speed sprocket or a shift sprocket. A magnetic resistance exerciser as claimed in claim 1, wherein the transmission wheel and the resistance wheel are located on opposite sides of the support frame. The magnetic resistance training device according to claim 1, wherein the support frame has a front bottom bar, a rear bottom bar, a front slant bar and a rear slant bar, and the front and rear bottom bars are spaced apart. The bottom end of the front slanting rod is connected to the front bottom rod, and the bottom end of the rear slanting rod is connected to the rear bottom rod, and the top end of the front slanting rod is connected with the top end of the rear slanting rod; the mandrel is located at the rear oblique At the top end of the rod, the resistance wheel shaft is located at the center of the rear slant rod, and the core bracket is located at the bottom end of the rear slant rod. The magnetic resistance training device according to claim 1, wherein one end of the mandrel is provided with a quick release handle, and the other end of the mandrel is provided with a nut. The magnetic resistance training device according to claim 1, wherein the resistance unit, the transmission unit and the magnetic unit are collectively covered by a casing, the sprocket is located outside the casing, and the casing has a Hold the department. A bicycle training system comprising:  a magnetic resistance exerciser as claimed in any one of claims 1 to 9;  A bicycle having two opposite lower forks, a large toothed disc and a chain, the two rear lower forks being disposed at two ends of the mandrel, the chain engaging the large chainring and the sprocket.