Patent Application
20170014661
1. Field of the Invention
The present disclosure relates to a damping device, more particularly to a damping device in which an interval is formed between a metal element and a magnetic part to make the rotating metal element not contact with the magnetic part and avoid generating any wear. In addition, the magnitude of a pulling force for the damping device can be adjusted by adjusting a distance between the metal element and the magnetic part without using electric power. Therefore, the life time and carrying convenience of the damping device of the present disclosure can be improved and the noise generated by the damping device of the present disclosure can be reduced.
2. Description of the Related Art
Today, as health consciousness surges, the people pay more attention on body health. Apart from taking care of nutrition absorption of the body in food and drink, the people also train muscles of each of the body portions by executing work-out. Therefore, the modem people are more concerned about how to improve self-owned muscle strength, endurance and etc.
Most of various fitness apparatuses are provided with pulling wires which are disposed on the machine frames and guided to turn by multiple pulleys. A resistance device is disposed at an end of the pulling wire; and the user can hold other end of the pulling wire to pull or push against the resistance, so as to complete the muscle strength training.
Apart from the device formed by multiple weight stacks, the device configured to generate the resistance can also be formed by a transmission device. The transmission device includes a shaft, a metal element mounted at an end of the shaft, and a magnet piece disposed adjacent to the metal element. An underdriving gear set is connected to other end of the shaft and further connected to a wire wheel which is used to roll and accommodate the pulling wire.
In practical application, the transmission device first electrifies the magnet piece to make the magnet piece and the metal element be attracted to contact with each other, and the magnetic attraction of the magnet piece for the metal element is adjusted by the electric power inputted into the magnet piece. When the user pulls the pulling wire to drive rotation of the wire wheel, the wire wheel drives the shaft to rotate via the underdriving gear set. Because the metal element and the magnet piece are attracted to contact with each other, the user must apply a pulling force larger than the magnetic attraction to rotate the metal element at the end of the shaft on the surface of the magnet piece, so as to complete the strength training action one time.
However, the metal element and the magnet piece are attracted to contact with each other, so the metal element is driven to rotate on the surface of the magnet piece for many times while user works out with the fitness equipment formed by the transmission device. Therefore, wears may be generated between the metal element and the magnet piece and noise may also be generated, and the life time of the fitness equipment is also decreased. In addition, the fitness equipment requires the electric power for operation, so it is not easy for the user to move the fitness equipment to other position for use, and hardly to carry the fitness equipment to outdoors for use.
Therefore, how to solve the problem that the metal element being rotated on the surface of the magnet piece causes the decreasing of the life time of the fitness equipment, and the problems of hardly reducing noise and very bad portability, is an important subject to study in the related technology.
To solve the problems, the inventor collects related data and performs many tests based on long-term experience, and finally designs a damping device in which an interval is formed between the metal element and the magnetic part, to improve the life time and portability of the damping device.
Main objective of the present disclosure is to provide a damping device. In the damping device, an interval is formed between the metal element and the magnetic part, and an adjusting member is inserted into the hollow-out hole from the outside of the casing structure to pivotally link with the magnetic part. In practical application, the adjusting member can be used to drive the load plate close to or away from the metal element, so as to increase or reduce a length of the interval and adjust the magnetic attraction of the magnetic part for the metal element correspondingly, whereby the strength of the pulling force for the pulling handle can be relatively adjusted. When the user pulls the pulling wire of the wire wheel to execute strength training, because the interval is formed between the metal element and magnetic part, the metal element and the magnetic part are not contacted with each other, no wear can be generated, and the damage caused on the resistance mechanism can also be reduced. Moreover, the damping device of the present disclosure can be operated without electric power, and the strength of the pulling force can be adjusted by the distance between the metal element and the magnetic part, so the effect of reducing noise and improving portability can be achieved.
The detailed structure, operating principle and effects of the present disclosure will now be described in more details hereinafter with reference to the accompanying drawings that show various embodiments of the present disclosure as follows.
Reference will now be made in detail to the exemplary embodiments of the present disclosure, examples of which are illustrated in the accompanying drawings. Therefore, it is to be understood that the foregoing is illustrative of exemplary embodiments and is not to be construed as limited to the specific embodiments disclosed, and that modifications to the disclosed exemplary embodiments, as well as other exemplary embodiments, are intended to be included within the scope of the appended claims. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the inventive concept to those skilled in the art. The relative proportions and ratios of elements in the drawings may be exaggerated or diminished in size for the sake of clarity and convenience in the drawings, and such arbitrary proportions are only illustrative and not limiting in any way. The same reference numbers are used in the drawings and the description to refer to the same or like parts.
It will be understood that, although the terms ‘first’, ‘second’, ‘third’, etc., may be used herein to describe various elements, these elements should not be limited by these terms. The terms are used only for the purpose of distinguishing one component from another component. Thus, a first element discussed below could be termed a second element without departing from the teachings of embodiments. As used herein, the term or includes any and all combinations of one or more of the associated listed items.
Please refer to
The casing structure 1 includes a base 11, a cover 12 and a covering structure 13. The base 11 is provided with an accommodating space 110 formed therein, an opening 1100 formed at one side of the accommodating space 110, a through hole 111 formed on an central area of a wall surface of other side opposite to the opening 1100, and a sleeved groove 112 protrudingly disposed at periphery surface of the through hole 111 toward the accommodating space 110. An outer diameter of the sleeved groove 112 is larger than an outer diameter of the through hole 111. The cover 12 can be assembled with the opening 1100 and provided with a hollow-out hole 121 formed at a central area thereof corresponding to the through hole 111, and an annular positioning member 122 protrudingly disposed at periphery surface of the hollow-out hole 121. The annular positioning member 122 is provided with a plurality of positioning slots 1221 disposed at a top surface thereof. One or more bearing 1222 is mounted at an inner side of the annular positioning member 122. The covering structure 13 can be mounted at the outside of the through hole 111 of the base 11, and provided with an accommodating groove 130 concavely formed at a side thereof, and the accommodating groove 130 is provided with an outlet hole 131 disposed on an inner side wall thereof and communicated with the outside.
The retarding mechanism 2 is provided with a main shaft 21 disposed at a side thereof, and a retarding shaft 22 disposed at other side thereof and acting simultaneously with the main shaft 21.
The retarding mechanism 2 can be formed by an underdriving gear set, so that during the simultaneous action between the main shaft 21 and the retarding shaft 22 the revolution number of the main shaft 21 can be larger than the revolution number of the retarding shaft 22 or smaller than the revolution number of the retarding shaft 22, as long as revolution number of the main shaft 21 is different from that of the retarding shaft 22. It should be noted that the technology related to the underdriving gear set is a traditional technology, and the detailed integration is not the key point of the present disclosure, so the detailed description is omitted.
The driving mechanism 3 includes a wire wheel 31 which is disposed at a central area thereof and has a first axis hole 311. The wire wheel 31 is provided with a clamping groove 312 concavely disposed at a side surface of a central area thereof and an outer diameter of the clamping groove 312 is larger than that of the first axis hole 311. The wire wheel 31 is provided with a wire slot 313 formed at a peripheral thereof, and a pulling wire 32 is rolled and accommodated in the wire slot 313. An end of the pulling wire 32 is fastened in the wire slot 313, and a pulling handle 321 is mounted at other end of the pulling wire 32.
The restoring mechanism 4 is provided with a restoring wheel 41 at a side thereof, and the restoring wheel 41 is provided with a ring-like protrudent block 411 protrudingly disposed at peripheral of top thereof and a channel 42 formed at a central area thereof toward other side.
The restoring mechanism 4 can be a wind-up restoring spring box, the restoring wheel 41 can be a ratchet, and the restoring mechanism 4 is provided with a coil spring (not shown in FIGs) disposed inside thereof and incorporating with operation of the restoring wheel 41, to enable the restoring wheel 41 to be automatically rolled toward other side for restoring after the restoring wheel 41 is revolved toward a side. It should be noted that the wind-up restoring spring box is a traditional technology, and the detailed integration is not the key point of the present disclosure, so the detailed description is omitted.
The resistance mechanism 5 includes a metal element 51, a magnetic part 52 and an adjusting member 53. The metal element 51 is in a disk shape and provided with a second axis hole 511 at a central area thereof. The magnetic part 52 has a load plate 521. The load plate 521 is provided with an inner threaded hole 5211 at a central area thereof, and a plurality of positioning pillars 5212 protrudingly disposed at a side surface thereof, and a plurality of load holes passed through a surface thereof and arranged along a side edge thereof. Each of the load holes 5213 is assembled and fastened with a magnet 522 inside. The adjusting member 53 can be an adjusting bolt 531 which is provided with an outer screw thread 5311 formed at a side thereof and a head portion 5312 formed at other side thereof.
Please refer to
As shown in
As shown in
Please refer to
Before a user 8 executes the strength training, the user 8 can rotate the head portion 5312 of the adjusting bolt 531 to enable the outer screw thread 5311 of the adjusting bolt 531 to be screwed into or out the inner threaded hole 5211 of the load plate 521, so that the load plate 521 can be driven to be close to or away from the metal element 51, whereby a length of the interval 6 formed between the metal element 51 and the load plate 521 can be increased or reduced to further adjust the magnetic attraction applied on the metal element 51 by the magnets 522 inside the load holes 5213 of the load plate 521. The magnetic attraction is for use as a resistance applied on the pulling wires 32 pulled by the user 8 later.
While the user 8 executes the strength training, the user 8 pulls the pulling handles 321 of the pulling wires 32 by hands firstly, to enable the pulling wires 32 to drive the wire wheels 31 to rotate, so that the wire wheels 31 then drive the main shaft 21 and the restoring wheel to rotate toward a side, to further enable the main shaft 21 to act simultaneously with the retarding shaft 22 to rotate. Because the magnetic attraction exits between the magnets 522 and the metal elements 51 fixed at the metal element 51 of the retarding shaft 22, the user 8 must apply a pulling force larger than the magnetic attraction on the pulling wire 32 to pull the pulling wires 32, whereby the user completes the strength training action of hand one time.
The load plate 521 of the resistance mechanism 5 provided with the plurality of load holes 5213 on the surface thereof and arranged along the side edge thereof, and the plurality of load holes 5213 provided with magnets 522 respectively inside are just taken as preferred embodiments, but the claim scope of the present disclosure is not limited thereto. For practical application, the load plate 521 of the present disclosure can be provided with an annular space (not shown in FIGs) formed inside, and the annular space is provided with single annular magnet (not shown in FIGs) mounted inside. It requires that the magnetic attraction exists between the magnet 522 and the metal element 51 of the retarding shaft of for use as the resistance during the user pulling the pulling wire 32. It should be noted that various equivalent changes, alternations or modifications based on the claims of present disclosure are all consequently viewed as being embraced by the scope of the present disclosure.
When the user 8 pulls the pulling wire 32 to a preset location and stop applying the pulling force on the pulling handles 321 of the pulling wires 32, the restoring wheel 41 of the restoring mechanism 4 are winded to restore toward other side, so as to drive the wire wheel 31 to rotate to roll and receive the pulling wire 32 in the wire slot 313. Therefore, the user 8 can pull the pulling wire 32 to execute next strength training action later.
The user executing the strength training of hand by pulling the pulling wires 32 is just taken as a preferred embodiment. In practical application of the present disclosure, the plurality of rollers 73 can be arranged at different positions on the machine frame 7 to vary the positions of the pulling wires 32, to allow the user 8 to pull the pulling wires 32 for muscle training action of leg, shoulder, chest, back or buttocks respectively, as long as the magnetic attraction between the metal element 51 and the magnetic part 52 is used as the resistance for strength training action; however, the present disclosure is not limited thereto. It should be noted that various equivalent changes, alternations or modifications based on the claims of present disclosure are all consequently viewed as being embraced by the scope of the present disclosure.
Please refer to
The retarding mechanism 2 of the present disclosure is provided with the metal elements 51 fastened at the retarding shaft 22, and the magnetic part 52 is disposed between the metal element 51 and the hollow-out hole 121, and the interval 6 is formed between the magnetic part 52 and the metal element 51. From outside of the casing structure 1, an adjusting member 53 is inserted into the hollow-out hole 121 to pivotally link with the magnetic part 52. In practical application, the load plate 521 can be driven by the adjusting member 53 to approach to or depart from the metal element 51, so as to increase or reduce the length of the interval 6 for adjusting the magnetic attraction applied on the metal element 51 by the magnetic part 52. When the user 8 pulls the pulling wires 32 to execute strength training, the interval 6 exists between the metal element 51 and the magnetic part 52, so any wear is not occurred between the metal element 51 and the magnetic part 52, whereby the damage on the resistance mechanism 5 can be reduced and further improve the life time of damping device of the present disclosure.
The above-mentioned content is just a preferred embodiment of the present disclosure, but the patent scope of the present disclosure is not limited thereto. The present disclosure is mainly directed to the damping device which includes a casing structure 1, a retarding mechanism 2, a driving mechanism 3, a restoring mechanism 4 and a resistance mechanism 5. Because an interval 6 is formed between a magnetic part 52 of the resistance mechanism 5 and a metal element 51, the user can pull pulling wires 32 of a wire wheel 31 to execute the strength training, and no wear will be occurred between the metal element 51 and the magnetic part 52, and the damage occurred on the resistance mechanism 5 can be reduced.
The above-mentioned descriptions represent merely the exemplary embodiment of the present disclosure, without any intention to limit the scope of the present disclosure thereto. Various equivalent changes, alternations or modifications based on the claims of present disclosure are all consequently viewed as being embraced by the scope of the present disclosure.
