CN113209548A

CN113209548A - Fitness equipment with resistance adjusting piece

Info

Publication number: CN113209548A
Application number: CN202110334983.2A
Authority: CN
Inventors: 刘荣兵; 赵兵; 范成
Original assignee: Reead Shanghai Intelligent Technology Co ltd; Xinchang County Xinrongguan Technology Co ltd
Current assignee: Reead Shanghai Intelligent Technology Co ltd; Xinchang County Xinrongguan Technology Co ltd
Priority date: 2021-02-25
Filing date: 2021-03-29
Publication date: 2021-08-06

Abstract

The present invention provides an exercise device having a resistance adjustment member. It includes: a first radial arm having a proximal end and a distal end. The second radial arm is pivoted to the near end of the first radial arm. The first pulling piece is configured to pull the second swing arm towards the first swing arm from the distal end of the first swing arm. And the second pulling piece is configured at the distal end of the second rotating arm and used for pulling the first rotating arm towards the direction of the second rotating arm. A resistance adjustment member coupled to the first and second radial arms and resisting pivotal movement of the distal end of the first radial arm toward the distal end of the second radial arm when the first and second radial arms are moved toward one another. The application of the fitness equipment can adjust the resistance of the first swing arm and the second swing arm to rotate in opposite directions through the resistance adjusting mechanism, and has a good fitness effect.

Description

Fitness equipment with resistance adjusting piece

Technical Field

The invention relates to the field of sports equipment, in particular to fitness equipment with a resistance adjusting piece.

Background

At present, various fitness equipment exists in the market, for example, some fitness equipment for body stretching exercise can only train a certain action. If a plurality of different body-building actions are trained, different body-building equipment needs to be replaced, or complicated large-scale body-building equipment is needed, so that the requirements of users for body-building by adopting various body-building actions cannot be met.

Disclosure of Invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art mentioned above and to provide an exercise apparatus with a resistance adjustment member.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an exercise device having a resistance adjustment member, comprising:

a first radial arm having a proximal end and a distal end;

a second radial arm having a proximal end and a distal end and pivotally connected to the proximal end of the first radial arm;

a first pulling member comprising a first tensioning member, a first pulley disposed between the proximal end and the distal end of the second swing arm, and a first handle disposed proximate the distal end of the first swing arm, the first tensioning member extending from the first handle and coupled to the first swing arm about the first pulley;

a second pull member including a second pulley disposed between the proximal end and the distal end of the first swing arm and a second handle disposed proximate the distal end of the second swing arm, the second tensioning member extending from the second handle and coupled to the second swing arm about the second pulley;

a resistance adjustment member coupled to the first and second radial arms and resisting pivotal movement of the first radial arm distal end toward the second radial arm distal end when the first and second radial arms are moved toward one another.

Further, the first and second swing arms are joined by a pivot, the pivot having an outer surface with a smooth portion and a toothed portion, the toothed portion being engaged with the first swing arm to cause the first swing arm to rotate with the pivot, the smooth portion being engaged with the second swing arm to cause the second swing arm to rotate relative to the pivot.

Further, a distal end of the first radial arm and a distal end of the second radial arm are rotatably provided with grips, and the first tensioning member and the second tensioning member are respectively fixed to the corresponding grips.

Furthermore, a through channel is arranged in the holding piece, and one end of each of the first tensioning member and the second tensioning member respectively penetrates out of the channel corresponding to the holding piece and then winds around the first pulley/the second pulley to be fixed to the holding piece.

Further, the first handle and the second handle each include a retaining ring and a handle connected to the first/second tensioning members by the retaining ring.

Furthermore, one side of the handle is configured to be a first half ring part buckled with the retaining ring, the other side of the handle is configured to be a second half ring part with an approximately elliptic section, and a plurality of rods are arranged in the second half ring part at intervals.

Further, the resistance adjustment member includes:

a body having a first barrier;

a resistance member disposed on said body, said resistance member having a hub with a plurality of resilient webs extending outwardly along said hub, said hub being rotatable relative to said body, a plurality of said resilient webs having distal ends engaged with said body to resist movement of a plurality of said resilient webs relative to said body; and

a second barrier connected to the hub and rotating with the hub relative to the body; the second barrier extends radially outwardly from the hub to engage the first barrier, the first barrier restraining the resistance member in a pre-tensioned position in which the elastic web is in a partially stretched condition.

Further, the hub is engaged with the first radial arm and rotates with the first radial arm; the body is engaged with the second radial arm and rotates with the second radial arm.

Further, the first swing arm includes a first pivot portion and a first arm portion extending outward along one side of the first pivot portion, the second swing arm includes a second pivot portion and a second arm portion extending outward along one side of the second pivot portion, and one side of the first arm portion and one side of the second arm portion are provided with wavy projections.

Further, the exercise device further comprises a controller comprising a processor and a sensor electrically connected to the processor.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

when the fitness equipment is used, the first rotating arm and the second rotating arm are pivoted, the first pulling piece and the second pulling piece are pulled to move away from each other, the first pulling piece can pull the second rotating arm to move towards the first rotating arm, and the second pulling piece can pull the first rotating arm to move towards the second rotating arm. Or the ends of the first radial arm and the second radial arm can be directly held to move towards each other. Can not only perform adduction exercise but also abduction exercise. Simultaneously, the resistance adjustment piece is jointed to first radial arm and second radial arm, can provide and resist first radial arm and second radial arm pivoted resistance in opposite directions, reaches better exercise effect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments will be briefly described below, and it is apparent that the drawings in the following description only relate to some embodiments of the present invention and are not limiting on the present invention.

FIG. 1 is a schematic structural diagram of an exercise apparatus according to an embodiment of the present invention;

FIG. 2 is an exploded schematic view of the exercise apparatus of FIG. 1;

FIG. 3 is a schematic view of the mounting arrangement of the first and second pull members of FIG. 1;

FIG. 4 is a schematic view of the structure of the grip of FIG. 1;

FIG. 5 is a schematic view of the resistance adjustment member of FIG. 1 from a first perspective;

FIG. 6 is a schematic view of the resistance adjustment member of FIG. 1 in a second perspective;

FIG. 7 is an exploded view of the resistance adjustment member of FIG. 1;

FIG. 8 is a schematic structural view of the hub of FIG. 7;

FIG. 9 is a schematic view of the assembled configuration of the first and second obstructers of FIG. 7 in a pre-tensioned position;

FIG. 10 is a schematic view showing an assembled structure of two resistance adjusting members.

Reference numerals: 200. a fitness device; 210. a first swing arm; 201a, proximal end; 202a, a distal end; 203a, mounting holes; 205. connecting holes; 206. a threaded post; 207. an accommodating space; 211. a first pivot part; 212. a first arm section; 213. a front plate; 214. a back plate; 220. a second swing arm; 201b, proximal end; 202b, distal end; 221. a second pivot part; 203b. rotating the hole; 222. a second arm section; 223. a front plate; 224. a back plate; 227. connecting grooves; 231. reinforcing ribs; 232. an arc-shaped mating portion; 233. a wavy bump; 240. a pivot member; 241. a smooth portion; 242. a tooth-shaped portion; 243. cushion blocks; 244. an engagement hole; 245. an annular convex ring; 250. a first pulling member; 251. a first tensioning member; 252. a first pulley; 253. a first handle; 260. a second pulling member; 261. a second tension member; 262. a second pulley; 263. a second handle; 270. a grip; 271. a grip portion; 272. a connector; 273. a rotating shaft; 274. a fixed block; 275. a retaining ring; 276. a grip; 277. a first semi-ring portion; 278. a second half ring portion; 279. a rod; 280. an annular collar; 100. a resistance adjustment member; 10. a main body; 101. a central bore; 102. a stop ring; 104. a connecting arm; 105. a protrusion; 106. a recess; 107. perforating; 11. a first barrier; 12. a convex portion; 13. an inclined surface; 14. a stop surface; 20. a second barrier; 21. a shaft hole; 22. a wing plate; 30. a resistance member; 31. a hub; 301. an annular groove; 311. a first hub portion; 312. a second hub portion; 313. blind holes; 32. an elastic member; 321. a center ring; 322. an elastic web; 323. a rim; 324. an elastic ring; 325. a convex strip; 40. a cover plate; 41. connecting grooves; 42. and (4) a window.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of this patent does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like are used only to indicate relative positional relationships that may change when the absolute position of an object being described is changed, and are merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the invention are described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

Examples

Referring to fig. 1 and 2, the present embodiment provides an exercise apparatus 200 including a first swing arm 210, a second swing arm 220, a first pull member 250, a second pull member 260, and a resistance adjustment member 100. The first radial arm 210 and the second radial arm 220 are pivotally connected. When the first pulling member 250 and the second pulling member 260 are pulled away from each other, the first pulling member 250 can pull the second swing arm 220 to move toward the first swing arm, and the second pulling member 260 can pull the first swing arm 210 to move toward the second swing arm 220. Resistance adjustment member 100 is coupled to first radial arm 210 and second radial arm 220, and resistance adjustment member 100 is configured to provide resistance against rotation of first radial arm 210 and second radial arm 220 toward one another.

Specifically, the first radial arm 210 has a proximal end 201a and a distal end 202a, and includes a first pivot 211 and a first arm 212 extending outwardly along one side of the first pivot 211. The first arm portion 212 has a width that gradually increases from the proximal end 201a to the distal end 202a. The first arm portion 212 includes a front plate 213 and a rear plate 214 which are joined to each other, and the front plate 213 and the rear plate 214 are fixed by a fastener. The fasteners may be, for example, screw assemblies, or may be mating posts and socket structures provided on the front plate 213 and the rear plate. Specifically, in this embodiment, the front plate 213 has a connection hole 205, the rear plate 214 has a threaded post 206 at a position corresponding to the connection hole 205, and the screw is fixed to the threaded post 206 through the connection hole 205.

Further, the first pivot joint 211 and the first arm 212 may be provided with one or more ribs to increase the strength of the first radial arm 210. In one embodiment, the first pivot portion 211 is provided with a plurality of ribs 231 spaced apart from each other along the circumferential direction.

In cooperation with the first radial arm 210, the second radial arm 220 has a proximal end 201b and a distal end 202b, and includes a second pivot portion 221 and a second arm portion 222 extending outwardly along one side of the second pivot portion 221. The second arm 222 increases in width from the proximal end 201b to the distal end 202b. The second arm portion 222 includes a front plate 213 and a rear plate 214 which are joined to each other, and the front plate 213 and the rear plate 214 are fixed by a fastener. The fasteners may be, for example, screw assemblies, or may be mating posts and socket structures provided on the front plate 213 and the rear plate. Specifically, in this embodiment, the front plate 213 has a connection hole, the rear plate 214 has a threaded post at a position corresponding to the connection hole 205, and the screw is fixed to the threaded post through the connection hole.

Further, the second pivot portion 221 and the second arm portion 222 may be provided with one or more ribs to increase the strength of the second radial arm 220. In one embodiment, the second pivot portion 221 has a plurality of ribs 231 spaced apart from each other along a circumferential direction.

Further, the first radial arm 210 and the second radial arm 220 may be formed by assembling a plurality of components, or may be an integrally molded structure. In this embodiment, the first pivot portion 211 and the rear plate 214 of the first arm portion 212 are integrally formed, and the front plate 213 of the first arm portion 212 is fixed to the rear plate 214 by a fastener. The second pivot portion 221 is integrally formed with the rear plate 214 of the second arm portion 222, and the front plate 213 of the second arm portion 222 is fixed to the rear plate 214 by a fastener.

The first pivot joint 211 and the second pivot joint 221 are substantially circular plates, and the front plate 213 of the first arm 212 and the front plate 213 of the second arm 222 are both provided with arc-shaped matching parts 232 matched with the joint edges of the first pivot joint 211 and the second pivot joint 221.

The first pivoting portion 211 and the second pivoting portion 221 are joined by a pivoting member 240. Specifically, the pivot member 240 is generally a cylindrical structure, the outer surface of which includes a smooth portion 241 and a toothed portion 242. The first pivot portion 211 has a mounting hole 203a, and a slot is formed in the mounting hole 203a. The tooth slot is matched with the tooth-shaped portion 242 of the pivoting member 240, the first pivoting portion 211 is fixed relative to the pivoting member 240, and the first pivoting portion 211 rotates to drive the pivoting member 240 to rotate. The second pivoting portion 221 is provided with a rotating hole 203b, the inner wall of the rotating hole 203b is smooth, and the smooth portion 241 of the pivoting member 240 is sleeved in the rotating hole 203b, so that the pivoting member 240 and the second pivoting portion 221 can rotate relatively. Further, the smooth portion 241 is externally sleeved with a pad 243 to prevent the outer surface from being worn.

Further, an end of the pivoting member 240 near the second pivoting portion 221 is formed with an engaging hole 244 extending in the axial direction, and a spline is formed in the engaging hole 244 for engaging with a portion of the resistance adjusting member 100, as described in detail below with reference to the resistance adjusting member 100. One or more connecting slots 227 are formed on a side of the second pivot portion 221 away from the first pivot portion 211 for engaging with a portion of the resistance adjustment member 100, as described below with reference to the resistance adjustment member 100.

Further, in order not to move the pivoting member 240 in the axial direction toward the first pivoting portion 211, an end of the pivoting member 240 near the smooth portion 241 is provided with an annular protruding ring 245 protruding outward, and the rotating hole 203b is provided with a groove fitting with the annular protruding ring 245.

Further, the mounting hole 203a of the first pivot portion 211 is a blind hole with a closed end, or in this embodiment, the mounting hole 203a of the first pivot portion 211 is a through hole, and a cover is mounted at an end thereof far away from the second pivot portion 221, and the cover is clamped with the first pivot portion 211.

Further, the side surfaces of the first arm portion 212 and the second arm portion 222 are provided with wavy projections 233, and the wavy projections 233 are disposed at the side where the first arm portion 212 and the second arm portion 222 are away from each other, which can provide friction or provide a massage function when the user pushes the two swing arms to move each other.

Referring to fig. 3, the first pulling member 250 includes a first tensioning member 251, a first pulley 252 disposed between the proximal end 201b and the distal end 202b of the second swing arm 220, and a first handle 253 disposed near the distal end 202a of the first swing arm 210, wherein the first tensioning member 251 extends from the first handle 253, passes around the first pulley 252, and is connected to the first swing arm 210. Specifically, the first pulley 252 is rotatably disposed between the front plate 213 and the rear plate 214 of the second arm. Pulling on the first handle 253 moves the distal end of the second arm 220 toward the first arm 210.

The second pulling member 260 includes a second tensioning member 261, a second pulley 262 disposed between the proximal end 201a and the distal end 202a of the first swing arm 210, and a second handle 263 disposed proximate the distal end 202b of the second swing arm 220, the second tensioning member 261 extending from the second handle 263 and coupled to the second swing arm 220 about the second pulley 262. Specifically, the second pulley 262 is rotatably disposed between the front plate 213 and the rear plate 214 of the first arm. Pulling on the second handle 263 moves the distal end of the first radial arm 210 toward the second radial arm 220.

The distal end of the first radial arm 210 and the distal end of the second radial arm 220 are further provided with grips 270, and the first and

second tensioning members

251 and 261 are respectively fixed to the corresponding grips 270. The grip 270 at the distal end of the first radial arm 210 is described as an example. The grip 270 includes a spherical grip 271 and a coupling head 272 extending axially from one side of the grip 271, the coupling head being cylindrical or conical, the coupling head 272 having a side wall provided with a rotating shaft 273 and a fixing block 274, the rotating shaft 273 extending radially, the fixing block 274 being disposed at an end of the coupling head 272. The distal end of the first rotating arm 210 is recessed inward to form a receiving space 207, and the connecting head 272 is rotatably fixed in the receiving space 207 through the rotating shaft 273. A through channel is arranged in the connecting head 272 and the holding part 271, one end of the first tensioning member 251 is fixed to the first handle, the other end of the first tensioning member 251 penetrates out of the channel of the connecting head 272 and the holding part 271, and the first tensioning member is fixed to the fixed block 274 after passing around the first pulley 252.

The first 251 and second 261 tension members may be any flexible members, such as wires, ropes, chains, or braided belts, and may be made of metal, rubber, plastic, cloth, etc. As long as the first swing arm and the second swing arm can be stretched while satisfying the tensile force.

Further, the exercise apparatus also has an annular cinch ring 280, and both the first 251 and second 261 tensioning members pass through the annular cinch ring 280. The material of the annular ring 280 may be rubber or woven tape, etc. to facilitate the tightening of the first and

second tensioning members

251, 261 without contact or interference with other components.

Referring to fig. 4, further, the first handle 253 and the second handle 263 both include a retaining ring 275 and a handle 276, the handle 276 is connected to the first tensioning member 251 through the retaining ring 275, and handle pieces with different structures or shapes can be replaced through the connecting structure of the retaining ring 275, so as to meet different exercise requirements. Further, in the present embodiment, one side of the handle 276 is configured as a first half ring 277 buckled with the retaining ring 275, and the other side is configured as a second half ring 278 with a substantially elliptical cross section, and the outer contour of the second half ring 278 is adapted to the curve formed by bending the human hand, so as to better grip the hand. A plurality of rods 279 are spaced apart within the second ring half 278 to increase strength, while the plurality of rods 279 may be used to connect with other accessories.

The resistance adjusting member 100 is disposed on a side of the second pivot portion 221 away from the first pivot portion 211. Referring to fig. 5 and 6, in particular, the resistance adjustment member 100 includes a body 10, a resistance member 30, a second barrier member 20, and a cover plate 40. The resistance member 30 is clamped between the body 10 and the cover plate 40. The main body 10 can be permanently or temporarily connected to the cover plate 40.

The resistance member 30 is disposed on the main body 10, and includes a wheel hub 31 rotatable with respect to the main body 10 and an elastic member 32 connected to the wheel hub 31. The resilient member 32 has a plurality of resilient webs 322 extending outwardly along the hub 31. The hub 31 is rotatable relative to the body 10 and the ends of a plurality of said resilient webs 322 engage the body 10 to resist movement of the ends of a plurality of said resilient webs 322 relative to the body 10.

Specifically, the wheel hub 31 includes a first hub portion 311 and a second hub portion 312, the first hub portion 311 having a blind hole 313 formed recessed in the axial direction, and the second hub portion 312 extending in the axial direction along a closed end of the blind hole 313. The blind bore 313 is adapted to receive a second hub portion 312 of another resistance adjustment member. The inner surface of the blind bore 313 and the outer surface of the second hub portion 312 mate by teeth or other structures to enable the first hub portion 311 to rotate with the hub 31 of the other resistance adjustment member.

The elastic member 32 includes a center ring 321, a plurality of elastic webs 322 extending linearly outward along the center ring 321, and a rim 323 connecting ends of the elastic webs 322. The hub 31 is disposed in the inner bore of the center ring 321, and the second hub 312 extends beyond the outer surface of the elastic member 32. The hub 31 and the center ring 321 may be tightly fitted, or may be fixed to each other by bonding, fastening, or the like. Two adjacent elastic webs 322 in the circumferential direction of the central ring 321 and a rim 323 connecting the ends of each other substantially constitute a triangular-shaped elastic ring 324. An elastic web 322 extends between the central ring 321 and the rim 323 and is deformable to resist rotation of the rim 323 relative to the hub.

The elastic member 32 can be made of, for example, a polymer elastic material such as rubber, polyvinyl chloride, etc., and in one embodiment, the elastic member 32 is integrally formed and made of 80% natural rubber and 20% polybutadiene. It will be appreciated that in other embodiments, the number and material of the resilient webs 322 may vary depending on the actual requirements.

Referring to fig. 7 and 8, the main body 10 is substantially a plate-shaped structure, the main body 10 is provided with a central hole 101, the hub 31 passes through the central hole 101, the stopper ring 102 is disposed on the side of the main body 10 away from the resistance element 30, the outer circumferential surface of the hub 31 is provided with an annular groove 301, and the inner wall of the stopper ring 102 is engaged with the annular groove 301 to limit the hub 31 from being disengaged from the main body 10.

The cover plate 40 and the body 10 cooperate to sandwich the resistance element 30 between the cover plate 40 and the body 10. The cover plate 40 is provided with one or more connecting grooves 41. The side of the body 10 remote from the resistance 30 is provided with one or more connecting arms 104. The connecting arm 104 can be inserted into the connecting groove 41 of the other resistance adjusting member. The mating structure of the connecting arm 104 and the connecting slot 41 enables the main body 10 of one resistance adjustment member to rotate synchronously with the cover plate 40 of the other resistance adjustment member. Specifically, in the present embodiment, the groove wall of the connecting groove 41 is substantially conical, and the bottom of the connecting arm 104 is substantially conical, so that the connecting arm 104 can be inserted into and clamped in the connecting groove 41.

Further, in the present embodiment, each of the connection groove 41 and the connection arm 104 is provided in plurality, the plurality of connection grooves 41 and the connection arm 104 are arranged at intervals in the circumferential direction, and the position of the connection arm 104 corresponds to the cavity of the elastic ring 324.

Further, the cover plate 40 is provided with a window 42 in the middle thereof, which allows a plurality of elastic webs 322 to be partially exposed, so as to facilitate viewing of the state of the elastic members 32.

Referring to fig. 7 and 9, the first barrier 11 is disposed on a side of the body 10 adjacent to the resistance member 30. Specifically, the first barrier 11 is a pair of protrusions 12, and the protrusions 12 are located approximately at the same distance from the center hole 101 and are disposed on opposite sides of the center hole 101. The projection 12 includes an inclined surface 13 and a stopper surface 14. The projection 12 is arranged on a rotation path in a first rotation direction in which the inclined surface 13 is first contacted and in a second, opposite rotation direction in which the stop surface 14 is first contacted. For example, as shown in fig. 9, the inclined surface 13 is first contacted in the counterclockwise direction, and the stopper surface 14 is first contacted in the clockwise direction.

The surface of the body 10 on the side close to the resistance element 30 is provided with a plurality of protrusions 105, the protrusions 105 are substantially triangular, the protrusions 105 are inserted into the elastic ring 324 and fixed to the rim 323 by the protrusions 105, thereby restricting the rotation of the end of the elastic web 322 with respect to the body 10.

Further, in one embodiment, one or more of the resilient ring 324 and the protrusion 105 are provided with alignment features to enable the protrusion 105 to fit accurately into the resilient ring 324. The alignment structure may be, for example, a rib 325 disposed on the inner surface of the elastic ring 324 and a notch 106 opened on the protrusion 105 and engaged with the rib 325.

In this embodiment, a second barrier 20 is further provided between the elastic member 32 and the main body 10, and the second barrier 20 is connected to the wheel hub 31 and rotates with the wheel hub 31 relative to the main body 10. The second barrier members 20 extend radially outwardly from the hub 31 to engage the first barrier members 11, the first barrier members 11 restraining the resistance members 30 in a pre-tensioned position in which the elastic web 322 is in a partially stretched condition.

Specifically, the second barrier 20 has a shaft hole 21 at the center for fixing to the hub 31 and a pair of wings 22 extending radially outward at both sides. The shaft hole 21 and the hub 31 are engaged by a rack or other protrusion and recess matching structure, so that the second barrier member 20 and the hub 31 rotate together. The wings 22 extend outwardly into contact with the projections 12 on the body 10.

In the initial state, the elastic members 32 are in an undeformed relaxed state and the elastic web 322 is not stretched. In this state, the end of the paddle 22 of the second barrier 20 is disposed on the side of the inclined surface 13 of the first barrier 11. By rotating the hub 31 in a first rotational direction, such as shown in fig. 5, in a counter-clockwise direction, the paddles 22 can move up the inclined surface 13. The wings 22 are able to flex or the projections 12 may be partially flexed to allow the wings 22 to pass over the projections 12. The wings 22 reach the pre-tensioned position after passing over the protrusions 12. In this position, the elastic element 32 is partially stretched, in a pre-tensioned state. At this time, the stop surface 14 of the projection 12 restricts the vane 22 from returning to the initial position in the opposite second rotational direction.

In another embodiment, boss 12 may not be provided with inclined surface 13, and in order to allow blade 22 to pass over boss 12, an axial force may be applied to move hub 31 or blade 22 a sufficient distance in a direction away from body 10 to allow blade 22 to pass over boss 12, and then the axial force may be released to move hub 31 or blade 22 in a direction toward body 10 such that movement of blade 22 in the second rotational direction is restricted by boss 12. Or before the body 10 is fixed to the hub 31, the wing 22 is rotated to a pre-tensioned position in advance, and then the body 10 is fixed to the hub 31 such that the wing 22 is restrained in the pre-tensioned position by the protrusion 12 on the body 10.

In the pre-tensioned position, the elastic web 322 is kept tensioned, in which state a force is constantly applied to the hub 31 moving in the second rotational direction. Engagement of the vanes 22 with the stop surfaces 14 of the lugs 12 prevents rotation of the hub 31 in the second rotational direction and prevents the vanes 22 from passing over the lugs 12 in the second rotational direction. In one embodiment, the stop surface 14 may be a vertical surface. In another embodiment, the stop surface 14 is an inclined surface extending from the bottom in the first rotational direction to further resist the force of the wing 22 rotating in the second rotational direction.

Further, the body 10 is provided with a through hole 107 in the pre-tensioned position, and the through hole 107 is arranged adjacent to the stop surface 14. The perforation 107 makes it possible, on the one hand, to facilitate the observation of whether the wing 22 has reached the pre-tensioned position and, on the other hand, to allow, upon disassembly, the insertion of a tool to push the wing 22 out so that the wing 22 passes over the projection 12 in the second direction of rotation, with the elastic element 32 returning to the initial state.

The movement of the paddle 22 to the pretensioned position over the convex portion 12 is completed before the shipment of the apparatus. Compared with the situation that the elastic member 32 has no initial resistance or has a small initial resistance when in the non-tensioned initial state, the resistance adjusting member 100 provided in this embodiment has the above-mentioned design, and the elastic member 32 can be maintained in the pre-tensioned state when the hub 31 rotates relative to the main body 10, so that the user can provide enough initial resistance at the beginning of the exercise, thereby achieving better exercise effect.

Further, when the user wants to increase the resistance, a plurality of the above resistance adjusters 100 may be integrated, and as shown in fig. 10, the two resistance adjusters are fitted together, the connecting arm 104 of the main body 10 of the upper resistance adjuster is inserted into the connecting groove 41 of the lower resistance adjuster cover plate 40, and the second hub portion 312 of the upper resistance adjuster hub 31 is inserted into the blind hole 313 of the first hub portion 311 of the lower resistance adjuster, completing the assembly of the two resistance adjusters. The user can add resistance adjustment as required to achieve the desired resistance.

The second hub portion 312 of the resistance adjuster 100 is inserted into the engagement hole 244 of the pivot member 240, and the second hub portion 312 and the engagement hole 244 are engaged by teeth or other structures, so that torque is transmitted from the first radial arm 210 to the hub 31 of the resistance adjuster 100. The connecting arm of the resistance adjustment member 100 is snapped to the connecting groove 227 of the second pivot portion 221 so that the torque of the second radial arm 220 is transmitted to the main body 10 of the resistance adjustment member 100.

It will be appreciated that one or more resistance adjusters 100 may be configured on the exercise device 200 to achieve different values of resistance.

Further, a controller is also configured on the exercise device 200 for measuring and tracking activity data of the user on the exercise device 200. Specifically, the controller includes a processor and a sensor. The activity data may be, for example, the rotational speed, degree of rotation, number of rotations, number of resistance adjusters, etc. of the first and

second swing arms

210 and 220. The processor may be, for example, an integrated circuit chip having signal processing capability, such as a Central Processing Unit (CPU), Network Processing (NP), etc., or a signal processor (DSP), Application Specific Integrated Circuit (ASIC), etc. The processor processing the various signals of the sensor is a well known means in the art and will not be described in detail herein. The sensor may be, for example, an angular velocity sensor or an acceleration sensor mounted on the reinforcing ribs 231 of the first pivot joint 211 and the second pivot joint 221 for detecting the rotation rate of the first swing arm and the second swing arm. The sensors may also be pressure sensors mounted in the first and second swing arms for detecting the amount of resistance experienced by the first and second swing arms.

The working process principle of the fitness equipment is as follows:

the user installs one or more resistance adjustment members 100 on the exercise apparatus 200 depending on the amount of resistance desired. The user may apply a force to the first grip 270 and the second grip 270 in opposite directions, as indicated by arrows AB in fig. 1. Causing the first radial arm 210 and the second radial arm 220 to move toward each other. The user's range of motion at this time is L and the resistance is M. The user may also pull the first handle 253 and the second handle 263 away from each other with both hands, as indicated by arrow AC in fig. 1. Causing the first radial arm 210 and the second radial arm 220 to move toward each other. The user's range of motion is 2L at this time, and the resistance is 0-5M.

The above description is only for the specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. An exercise device having a resistance adjustment member, comprising:

a first radial arm having a proximal end and a distal end;

2. The exercise device with resistance adjustment of claim 1, wherein the first and second radial arms are engaged by a pivot having an outer surface with a smooth portion and a toothed portion, the toothed portion engaging the first radial arm to rotate the first radial arm with the pivot, the smooth portion engaging the second radial arm to rotate the second radial arm relative to the pivot.

3. The exercise device with resistance adjustment of claim 1, wherein the distal end of the first radial arm and the distal end of the second radial arm are rotatably configured with grips, the first tensioning member and the second tensioning member each being secured to a corresponding grip.

4. The exercise device with the resistance adjustor of claim 3, wherein the grip is provided with a channel therethrough, and one end of each of the first tensioning member and the second tensioning member passes through the channel corresponding to the grip and then passes around the first pulley/the second pulley to be fixed to the grip.

5. The exercise device with resistance adjustment of claim 1, wherein the first handle and the second handle each comprise a clasp and a grip, the grip being connected with the first tensioning member/the second tensioning member through the clasp.

6. The resistance-adjustment exercise apparatus of claim 5, wherein said grip is configured with a first half-ring that is snap-fit to said buckle on one side and a second half-ring 278 of generally elliptical cross-section, spaced apart with a plurality of rods.

7. The exercise device with resistance adjustment of claim 1, wherein the resistance adjustment comprises:

a body having a first barrier;

8. The exercise device with resistance adjustment of claim 7, wherein the hub is engaged with the first radial arm and rotates with the first radial arm; the body is engaged with the second radial arm and rotates with the second radial arm.

9. The exercise device with resistance adjustment of claim 1, wherein the first swing arm comprises a first pivot and a first arm portion extending outwardly along one side of the first pivot, and the second swing arm comprises a second pivot and a second arm portion extending outwardly along one side of the second pivot, one side of the first arm portion and the second arm portion being provided with a wave-like projection.

10. The exercise device with resistance adjustment of claim 1, further comprising a controller comprising a processor and a sensor in electrical communication with the processor.