TWI418705B - Magnetic control flywheel assembly - Google Patents

Description

Magnetron flywheel structure improvement

The invention relates to a magnetically controlled flywheel structure; in particular to a flywheel structure which can achieve the benefits of uniform, labor-saving and smooth regulation of magnetic resistance.

According to the improvement of living standards, modern people gradually pay attention to health and physical care. Among them, the most simple and effective method is universally accepted, that is, through exercise and fitness, to achieve the purpose of health. However, because modern people's life is relatively busy, and outdoor sports are prone to weather and venue restrictions, the gymnastics has gradually become a trend. Among them, the exercise bike is one of the common indoor sports equipments. It mainly drives the flywheel to rotate by pedaling, and uses the flywheel and the resistance device to make a gravity load when pedaling, so as to improve the amount of exercise and achieve the effect of exercise and fitness. .

The magnetically controlled flywheel structure commonly used in exercise bicycles is mainly composed of a wheel body, a plurality of arc-shaped magnetic blocks, a certain sub-disk, a traction device, and a return spring corresponding to the magnetic block. Wherein, the inner wall of the wheel is provided with a metal conductor, and the stator disk is mounted on the inner side of the wheel body, and one end of the magnetic block is respectively connected to the stator disk, and can be swung relative to the stator disk, and one end of the traction device is respectively Connected to the magnetic block, the other end of the traction device is connected to an external control mechanism by a cable, and the return spring is respectively connected to the magnetic block to provide the elastic force of the magnetic block return. When the user wants to change the magnetic reluctance of the magnetron flywheel, the external cable is used to pull the wire rope, and the free end of the two magnetic blocks can be pulled by the traction device to swing relative to the stator disk by the pulling force of the cable, and simultaneously Moving to the outside or inward, according to the distance between the magnetic block and the inner wall of the wheel, to change the magnitude of the magnetic resistance, thereby achieving the purpose of adjusting the amount of movement.

However, when implemented according to the foregoing structure, it has the following disadvantages:

1. When the traction device pulls the free end of each magnetic block and moves it to the outside at the same time, because the free end is close to the metal conductor, the magnetic force is relatively large; however, the different ends of the magnetic block are fixed on the stator disk. Therefore, the distance from the metal conductor is relatively long, and the magnetic force is small, which causes the magnetic reluctance of the flywheel to be unevenly distributed, and the magnetic lines interfere with each other, so that the magnetic resistance cannot be changed with the distance, and thus cannot Smoothly adjust the reluctance, thus reducing the sensitivity of the overall operation of the exercise bike.

2. The magnetic block is arranged such that the surface of the magnetic block is vertically close to or away from the inner wall of the metal conductor in a manner of swinging relative to the stator disk. Since the working area is large, the magnetoresistance effect is adjusted from the highest to the lower, and the application is required. The magnetic force generated between the magnetic block and the metal conductor is overcome with a large force to drive the magnetic block away from the metal conductor, so adjustment is not easy.

Third, in order to make the magnetic block can be reset, each magnetic block is connected with a return spring; however, the structural design will occupy too much internal space of the flywheel, resulting in an increase in the volume of the magnetically controlled flywheel, and the structure tends to be complicated and the assembly is not easy.

In view of this, the main purpose of this creation is to provide a magnetically controlled flywheel structure improvement, in order to achieve uniform, labor-saving, smooth control of the magnetic resistance of the flywheel.

In other words, the structure of the magnetron flywheel according to the present invention includes a flywheel, one side of which is provided with an accommodating space, and a metal conductor is disposed on the inner wall of the accommodating space; and a magnetic control panel is disposed on the flywheel. The magnetic disk group mainly comprises: two fixed disks, which can be combined with each other to form an external structure of the magnetic disk group, and the two fixed disks are respectively disposed on opposite sides, and at least one protruding shaft is respectively provided, and the protruding shaft is opposite to the fixed disk. The center of the center is eccentric, and the side surface is provided with a stud at the periphery; a fixed slot is formed on the fixed disc, and the fixing disc is disposed on the side opposite to the other fixed disc. The first chamber is provided with a resilient member in the first chamber, and the first chamber has a first blocking piece at one end for resisting one end of the elastic member; at least two-shaped seat, the fan-shaped seat is An eccentric hole is respectively disposed adjacent to the apex, and is respectively pivotally disposed on the protruding shaft of the two fixed disks, and the limiting seat groove for the protruding column is respectively formed on the fan-shaped seat, and the magnet is provided at the arc edge of the fan-shaped seat; The two-seat type is equipped with a linkage rod, which is linked to The fan seat can be synchronously swivel; the fan seat adjacent to the fixed disk provided with the first chamber is recessed with a second volume corresponding to the first chamber toward the side of the fixed disk a chamber, in combination with the first chamber, to jointly provide the elastic member, the second chamber is different from the first flap, and a second flap is protruded from one end of the first flap for resisting the opposite end of the elastic member; , the flywheel and the center of the magnetron group are placed, and one end thereof is fixed on the two fixed disks, so that the flywheel can rotate relative to the magnetron group; and the movable moving cable has one end fixed on one of the seats, and Passing through the slot of the fixed disc; by actuating the cable to pull the fan seat synchronous eccentric swing, the magnet on the fan seat can be rotated and cut, approaching the metal conductor of the flywheel, or moving back to the flywheel central.

According to the structural design, the invention has:

1. By actuating the synchronous eccentric rotation of the cable-sliding fan-shaped seat, and the guiding and limiting action of the limiting groove and the protruding column, the magnet can be smoothly approached with the swinging and displacement of the fan-shaped seat. To the inner edge of the metal conductor of the flywheel, or to move back to the center of the flywheel, the distance can be changed and the effect is more obvious when the regulation is made, and the effect of uniform and smooth regulation of the amount of movement is achieved, thereby improving the sensitivity of the overall operation.

2. The magnet removes the inner edge of the metal conductor by means of a rotary cutting method. Since the area of action of the magnet is reduced with the metal conductor, it is not necessary to apply a large force to overcome the magnetic attraction between the magnet and the metal conductor. The magnet is driven away from the metal conductor, thereby increasing the ease of operation.

3. The invention only needs to utilize an elastic component to drive the fan-shaped seat to drive the magnet to return, the structure is simple, and the magnetic control resistance effect can be saved, and the proportion of the space occupied by the magnetic control flywheel device is reduced.

In order to enable your review committee to have a better understanding and recognition of the structural features and functions of this creation, the following preferred embodiments are listed, and the following description is in conjunction with the drawings.

Please refer to the first to fourth figures. The first drawing shows a combination of preferred embodiments of the present invention; the second drawing shows a schematic view of a preferred embodiment of the present invention; and the third figure shows a group of magnetic control disk sets of a preferred embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS The fourth drawing is a schematic cross-sectional view showing a preferred embodiment of the present invention.

As shown in the figure, the structure of the magnetically controlled flywheel of the present invention is improved, and mainly comprises a flywheel (1) and a magnetron group (2) accommodated in the flywheel (1), wherein the magnetron group (2) comprises two opposite The combined first fixed disk (20) and the second fixed disk (21), at least two fan-shaped seats (22), (23) respectively eccentrically disposed on the two fixed disks (20), (21) An axial unit (24) that is placed in the center of the magnetron group (2) and fixed to the two fixed plates (20), (21), and an actuating cable that is fixed at one end to a fan (23) (25). Wherein: the flywheel (1) is recessed inwardly on one side thereof to form a concentric accommodating space (10) for accommodating the magnetic control panel (2) on the inner wall of the accommodating space (10) A ring-shaped metal conductor (12) is provided. The metal conductor (12) is made of a magnetic induction material, and a center of the flywheel (1) is provided with a pivot hole (11).

The first fixed disk (20) and the second fixed disk (21) are oppositely coupled to form an external structure of the magnetic disk group (2), and the two fixed disks (20) and (21) are respectively on opposite sides, respectively Formed with at least one projecting shaft. In the embodiment, the two fixed disks (20), (21) are respectively formed with a first protruding shaft (200) and a second protruding shaft (210); wherein, the first fixed disk (20) or the first When the center of the two fixed disks (21) is a reference, the axes (20a) and (21a) of the two protruding shafts (200) and (210) are located on the same circumference, and the two axes (20a) and (21a) are respectively Extending to the circumferential angle formed by the center of the fixed disk (21), the circumference can be equally divided (in the present embodiment, the circumferential angle is 180°), in other words, the protruding shaft (200) is opposite to the first fixed disk The center of (20) is in an eccentric circular state, and the protruding shaft (210) is also in an eccentric circular state with respect to the center of the second fixed disk (21). At the center of the two fixed disks (20) and (21), a first through hole (201) and a second through hole (211) passing through the protruding shafts (200) and (210) are respectively opened, and the two through holes ( 201) and (211) are located on the same axis as the pivot hole (11) of the flywheel (1). The side opposite to the second fixed disk (20) and the second fixed disk (21) faces the periphery, and a plurality of mutually corresponding protrusions (202) and (212) are formed, which can be pierced by the screwing member (203). The axes of the two protrusions (202) and (212) are screwed to bond the two fixed disks (20) and (21). Moreover, in the preferred embodiment of the present invention, the second fixing plate (21) is provided with a slot (213) extending through the two sides for the actuation of the cable (25), and the second fixing plate (21) On the side opposite to the first fixed disk (20), a first groove-shaped first chamber (214) is formed to receive a resilient member (216); and is disposed in the first chamber ( 214) At one end, a first flap (215) is formed to resist one end of the elastic member (216).

In the embodiment, the fan-shaped seat is provided with a first fan-shaped seat (22) and a second fan-shaped seat (23) corresponding to the two protruding shafts (200) and (210). A first eccentric hole (220) and a second eccentric hole respectively corresponding to the first protruding shaft (200) and the second protruding shaft (210) are respectively disposed adjacent to the apex of the two fan seats (22) and (23). 230), for the two-seat seats (22), (23) are pivoted on the outer peripheral surface of the first projecting shaft (200) and the second projecting shaft (210), respectively, and the first fixed plate (20) And the second fixed disk (21) forms an eccentric circle, and the distance between the arc edge of the first fan seat (22) and the second fan seat (23) and the inner edge of the metal conductor (12) is closer. The same. The two-shaped seats (22) and (23) are disposed at the arc-edges, and respectively have a first limiting slot (221) and a second limiting slot (231) extending through the two sides, and are disposed on the first fixed disk ( 20) when combined with the second fixing plate (21), the protruding columns (202) and (212) are pierced, and the guiding two-shaped seat (22) is formed by the protruding columns (202) and (212), (23) The rotation and the limit of the swing angle; the first fan (22) and the second fan (23) at the arc of the edge are respectively arranged with a plurality of magnets (26). Moreover, the first fan seat (22) faces the side of the second fixed plate (21), and is provided with a coupling seat (222) for fixing one end of the actuating wire (25). The second fan seat (23) faces the side of the second fixed plate (21) and is disposed between the second eccentric hole (230) and the magnet (26), and is provided with a first corresponding to the first chamber (214). a second chamber (232), the second chamber (232) is different from one end of the first flap (215), and is formed with a second flap (233) opposite to the first flap (215); The first chamber (214) is combined with the second chamber (232) to accommodate the elastic member (216) together, while the first flap (215) and the second flap (233) are utilized to resist the elastic member. The two ends of (216).

In addition, between the first fan seat (22) and the second fan seat (23), a linkage rod (235) is provided to connect and drive the synchronous action. Wherein, the two ends of the linkage rod (235) respectively protrude from the opposite direction with the first protrusion (2350) and the second protrusion (2351); the first fan seat (22) is in the first eccentric hole ( 220) the outer edge and adjacent to the apex of the first fan-shaped seat (22), is provided with a first pivot hole (223) corresponding to the first protrusion (2350), and the second fan seat (23) is second A second pivot hole (234) corresponding to the second protrusion (2351) is provided at an outer edge of the eccentric hole (220) and adjacent to the second flap (233). When the first fan seat (22) rotates, the first fan seat (23) can be driven by the linkage bar (235) to form a synchronous swing effect.

The shaft center unit (24) is provided with a mandrel (240) that penetrates two through holes (201), (211), and two eccentric holes (221) of the magnetron group (2), (231) and a pivot hole (11) of the flywheel (1), at the two ports of the pivot hole (11), respectively, a Palin group (241) and (242) sleeved outside the mandrel (240) The mandrel (240) passes through one end of the second fixed plate (21), is sleeved by a bearing seat (243), and is inserted into the pin (244) to form a fixed shape, the bearing seat (243) And the first fixing plate (20) and the second fixing plate (21) are locked by the screwing member (245) from the inside to the outside, so that the flywheel (1) can be opposite to the magnetron group (2). Turn.

The structural features of the various parts of the preferred embodiment of the present invention are disclosed above, and the features of use of the present invention are described. Please refer to the fifth to seventh figures, together with the first to fourth figures. 5 to 7 are respectively schematic diagrams (1) to (3) of partial actions when the preferred embodiment of the present invention is adjusted.

When the actuating cable (25) is adjusted to the relaxed state (as shown in FIG. 5), the two ends of the elastic member (216) placed in the first chamber (214) and the second chamber (232) are respectively supported. Abutting the first flap (215) and the second flap (233) to naturally force the first retainer (22) and the second retainer (23) to be fixed by the first fixed disc (20) and the second fixed The protruding shafts (200) and (210) of the disk (21) are centered and relatively eccentrically rotated, and are matched with the protruding columns (202) of the first limiting groove (221) and the second limiting groove (231), The guiding and stopping functions of 212) further cause displacement of the first fan seat (22) and the second fan seat (23) when eccentrically swinging, so that the two fan seats (22) and (23) are disposed. The magnet (26) at the arc edge approaches the inner edge of the metal conductor (12) of the flywheel (1), so that the distance between each magnet (26) and the metal conductor (12) is the shortest. At this time, the flywheel ( 1) The magnetoresistance effect is the highest, and the user needs to drive the flywheel (1) with a large force to achieve the fitness effect of laborious exercise.

When the actuating cable (25) is gradually adjusted to the tightest state (as shown in the sixth to seventh figures), the pulling force is greater than the elastic force of the elastic member (216), so that the actuating cable (25) can pull the first fan. The seat (22) is swung. At this time, the second seat (23) can be coupled through the linkage rod (235), and synchronously swings with the first fan seat (22) to fit the first limiting slot ( 221) and guiding and stopping of the protrusions (202) and (212) of the second limiting groove (231), so that the first fan seat (22) and the second fan seat (23) are eccentrically swivel The displacement is generated such that the surface of the magnet (26) is rotated to remove the inner edge of the metal conductor (12) and return to the center of the flywheel (1) until the distance between the magnets (26) and the inner edge of the metal conductor (12) is the longest. State, at this time, the reluctance effect of the flywheel (1) is the lowest, and the user can drive the flywheel (1) to rotate with less force, thereby achieving the fitness effect of the labor-saving exercise.

In summary, the present invention can be summarized as follows:

1. The actuating cable (25) pulls the first fan seat (22) to swing, and the second fan that is located at a different axis from the first fan seat (22) can be connected by the linkage rod (235). The seat (23) is synchronously eccentrically rotated, and cooperates with the guiding and limiting stops of the protruding posts (202) and (212) provided in the first limiting slot (221) and the second limiting slot (231), Having the magnet (26) smoothly approach the inner edge of the metal conductor (12) of the flywheel (1) with the displacement of the fan seats (22), (23), or move back to the center of the flywheel (1); At the same time, since the arc edges of the fan seats (22) and (23) are close to the inner edge of the metal conductor (12), the magnetic resistance of the flywheel (1) is also nearly uniform and equal, so When regulating, the magnetoresistance effect can be more obviously changed with the control distance, and the uniform and smooth regulation effect can be achieved, thereby improving the sensitivity of the overall operation.

2. The magnet (26) removes the inner edge of the metal conductor (12) by means of a rotary cutting method. Since the area of action of the metal conductor (12) is reduced, it is not necessary to apply a large force to overcome the magnet (26) and The magnetic attraction between the metal conductors (12), which drives the magnets (26) away from the metal conductors (12), increases the ease of operation.

3. The invention only needs to utilize an elastic component (216) to drive the fan seat (22) and (23) to drive the magnet (26) to return, the structure is simple, and the magnetron resistance effect can be preserved while reducing the magnetic control. The proportion of space occupied by the flywheel device.

The above description is only for the preferred embodiment of the present invention, and is intended to clarify the features of the present invention, and is not intended to limit the scope of the embodiments of the present invention. Changes that are well known to those skilled in the art are still within the scope of the invention.

1. . . flywheel

10. . . Housing space

11. . . Pivot hole

12. . . Metal conductor

2. . . Magnetic disk group

20. . . First fixed disk

20a. . . Axis

200. . . First axis

201. . . First through hole

202. . . Tab

203. . . Screw element

twenty one. . . Second fixed disk

21a. . . Axis

210. . . Second axis

211. . . Second through hole

212. . . Tab

213. . . Slotting

214. . . First chamber

215. . . First flap

216. . . Elastic component

twenty two. . . First fan seat

220. . . First eccentric hole

221. . . First limit slot

222. . . Joint seat

223. . . First pivot hole

twenty three. . . Second fan seat

230. . . Second eccentric hole

231. . . Second limit slot

232. . . Second chamber

233. . . Second flap

234. . . Second pivot hole

235. . . Linkage rod

2350. . . First protrusion

2351. . . Second protrusion

twenty four. . . Axis unit

240. . . Mandrel

241. . . Palin group

242. . . Palin group

243. . . Bearing housing

244. . . plug

245. . . Screw element

25. . . Actuating the cable

26. . . magnet

First drawing: a combination diagram of a preferred embodiment of the present invention;

Second drawing: a schematic diagram of a set of preferred embodiments of the present invention;

FIG. 3 is a schematic diagram showing the assembly of a magnetic control panel according to a preferred embodiment of the present invention; FIG.

Fourth drawing: a schematic cross-sectional view of a preferred embodiment of the present invention;

Figure 5 is a schematic view showing the local action of the preferred embodiment of the present invention (1);

Figure 6 is a schematic view showing the local action of the preferred embodiment of the present invention (2);

Figure 7 is a schematic view showing the local action of the preferred embodiment of the present invention (3).

1. . . flywheel

12. . . Metal conductor

2. . . Magnetic disk group

20. . . First fixed disk

twenty one. . . Second fixed disk

213. . . Slotting

twenty two. . . First fan seat

twenty three. . . Second fan seat

twenty four. . . Axis unit

25. . . Actuating the cable

26. . . magnet

Claims (4)

An improved structure of a magnetically controlled flywheel includes a flywheel having an accommodating space on one side thereof and a metal conductor on the inner wall of the accommodating space; and a magnetic control panel set in the accommodating space of the flywheel, the magnetic control panel The group mainly comprises: two fixed disks, which can be combined with each other to form an external structure of the magnetic control disk group, and the two fixed disks are respectively disposed on opposite sides, and at least one protruding shaft is respectively provided, and the protruding shaft is eccentric with respect to the center of the fixed disk. In this case, the side surface is respectively provided with a stud at the periphery; a fixing plate is formed on the fixing plate, and the fixing plate is disposed on the side opposite to the other fixing plate, and a first chamber is recessed. An elastic member is disposed in the first chamber, and the first chamber has a first blocking piece at one end for resisting one end of the elastic member; at least two fan-shaped seats, and the fan-shaped seat is respectively provided with an eccentricity adjacent to the apex The holes are respectively pivoted on the protruding shafts of the two fixed disks, and the fan-shaped seat is respectively provided with a limiting groove for the protruding column to be pierced, and the arc-shaped edge of the fan-shaped seat is provided with a magnet; Linking rods, according to the two-seat type, let the fan seat Synchronously swinging; a fan-shaped seat adjacent to the fixed disk provided with the first chamber is recessed with a second chamber corresponding to the first chamber toward the side of the fixed disk, and the first chamber Combining to set the elastic member together, the second chamber is different from the first flap, and a second flap is protruded from one end of the first flap for resisting the different ends of the elastic member; an axial unit is inserted between the flywheel and the magnetic The center of the control panel, and one end of which is fixed on the two fixed disks, so that the flywheel can rotate relative to the magnetic control panel; and the movable moving cable has one end fixed on one of the shaped seats, and is worn by the slot of the fixed disk By actuating the wire rope traction fan seat synchronous eccentric rotation, the magnet placed on the fan seat can be rotated and cut, and at the same time approaching the metal conductor of the flywheel or moving back to the center of the flywheel. According to the structure of the magnetron flywheel according to the first aspect of the patent application, the distance between the arc edge of the fan seat and the inner edge of the metal conductor is close to the same. According to the structural improvement of the magnetically controlled flywheel according to the first aspect of the patent application, wherein a fan-shaped seat is disposed on the outer edge of the eccentric hole and adjacent to the apex of the fan-shaped seat, and the first pivot hole is provided. a fan-shaped seat is disposed on the outer edge of the eccentric hole, and is provided with a second pivot hole; the two ends of the linkage bar respectively protrude from the opposite direction to the first protrusion corresponding to the first pivot hole and the corresponding second pivot The second protrusion of the pivot hole; when one of the seats is swung, the other seat can be rotated synchronously. The structure of the magnetically controlled flywheel according to claim 1, wherein the shaft center unit is provided with a center of two fixed disks through which the magnetron group is placed, an eccentric hole of the fan seat, and a mandrel at the center of the flywheel. The mandrel is disposed on the two sides of the flywheel, and is respectively provided with a Palin group sleeved on the outside of the mandrel. The mandrel passes through one end of the fixed plate, and is fastened to a bearing seat, and the bearing seat is locked on the second fixed plate. , the flywheel can be rotated relative to the magnetron group.