CN1401400A

CN1401400A - Load device of execising equipment

Info

Publication number: CN1401400A
Application number: CN 01125278
Authority: CN
Inventors: 张正山
Original assignee: JINSAN DEV CO Ltd
Current assignee: JINSAN DEV CO Ltd
Priority date: 2001-08-28
Filing date: 2001-08-28
Publication date: 2003-03-12

Abstract

A loading mechanism for exercise apparatus is composed for a machine body a force applying unit, a force receiving unit, a magnetic powder lustre between said force applying and receiving unit, and a magnetic powder clutch and its controller. Said magnetic powder clutch consists of a driver linked to said force applying unit, a driven part linked to said force receiving unit, magnetic powder between them and an external electromagnetic coil of said driver.

Description

The load device of exercise apparatus

[technical field]

The present invention relates to a kind of load device of exercise apparatus.

[background technology]

As shown in Figure 1, be that load device with general foot muscles exercise apparatus is an example.But described load device includes a frame 11, and is positioned at bearing frame 12 moving up and down, several storehouses on the frame 11 and is seated on the described bearing frame 12 and movement weight mass 13 and with constant weight can spur the cable wire 14 that bearing frame 12 moves.In addition, described exercise apparatus also is provided with a transmission device except load device, transmission device mainly has a connecting rod 15 that is articulated on the frame 11, connecting rod 15 1 ends can be fit to the contact of user foot and rotate to promote connecting rod 15, the other end of connecting rod 15 then can spur cable wire 14, put the bearing frame 12 that movement weight mass 13 is arranged by cable wire 14 pullings, make the user when promoting connecting rod 15 motions with foot, can experience the load resistance that weight was produced of movement weight mass 13, can reach the purpose of tempering user's foot muscles whereby.

Yet, plant at this point and use movement weight mass 13 to produce the exercise apparatus of load strength, when user's desire is adjusted required load strength, it must be combined into required weight in the movement weight mass 13 of Different Weight specification, again each movement weight mass 13 is seated on the bearing frame 12 one by one, utilizing fixtures such as latch that each movement weight mass 13 is fixed at last begins to such an extent that finish on the bearing frame 12, so it is quite inconvenient on adjusting, and can produce up and down repeatedly mobile with user's motion because of bearing frame 12 when using with movement weight mass 13, this moment is if there be the position of personnel near bearing frame 12, one does not note tending to suffering bearing frame 12 to wound or crush, and has potential danger to exist in the use.And owing to must have the space that movement weight mass 13 puts and hold movement weight mass 13 and space that bearing frame 12 moves, its frame 11 is often bulky, does not still take up room, and moves also inconvenient.

[summary of the invention]

The object of the present invention is to provide a kind of load device of exercise apparatus, it can conveniently adjust the load resistance, volume is little and safe.

The load device of exercise apparatus of the present invention is characterized in: described load device comprises a body, an application of force unit, a stress unit, a magnetic powder cluth and a control module; Described application of force unit comprises that one is fixed on first transmission component that the drive motor and on the body is driven by drive motor, and drive motor has a torsion output shaft, and first transmission component is driven to transmit torsion by the torsion output shaft then; Described stress unit comprises that one is positioned second transmission component that the rotating shaft and on the body is rotated with the driven rotary axle by user's application of force rotatably; Described magnetic powder cluth comprises a drive division, one is linked in the follower in the drive division rotatably, a certain amount of magnetic and between between drive division and follower is positioned at the solenoid in the drive division outside, drive division connects first transmission component and rotates, follower then connects rotating shaft and rotates synchronously, borrowing the solenoid energising to produce magnetic field makes the magnetic magnetization assemble the back with engages drive portion and follower, and then drive motor torsion is passed to rotating shaft according to the magnetic field intensity that solenoid produces with certain proportion, make rotating shaft when user's application of force is rotated, have a reverse load torsion; Described control module makes described rotating shaft be able to be granted different load torsion for the magnitude of current of user's setting with the solenoid of control magnetic powder cluth.

[description of drawings]

Be elaborated below in conjunction with accompanying drawing and preferred embodiment load device to exercise apparatus of the present invention, in the accompanying drawing:

Fig. 1 is the schematic appearance of general foot muscles exercise apparatus;

Fig. 2 is the formation level schematic diagram of a preferred embodiment of the load device of exercise apparatus of the present invention;

Fig. 3 is the schematic appearance that described preferred embodiment is applied in a foot muscles exercise apparatus;

Fig. 4 is a magnetic powder cluth structure section schematic diagram of described preferred embodiment;

Fig. 5 is the schematic diagram that described preferred embodiment is provided with a tab, a retaining piece and a counter;

Fig. 6 is the schematic diagram that described preferred embodiment is provided with an amount of spin measuring appliance.

[specific embodiment]

Consult Fig. 2, a preferred embodiment of the load device of exercise apparatus of the present invention comprises a body 2, an application of force unit 3, a stress unit 4, a magnetic powder cluth 5 and a control module 6.

Described application of force unit 3 comprises that one is fixed on first transmission component 31 that the drive motor 32 and on the body 2 is driven by drive motor 32, and drive motor 32 has 31 of a torsion output shaft 321, the first transmission components and driven to transmit torsion by torsion output shaft 321.In this example, first transmission component 31 includes the driving belt 313 of one first belt pulley 311, one second belt pulley 312 and an interlock first belt pulley 311 and second belt pulley 312, first belt pulley 311 links the torsion output shaft 321 of drive motor 32 and can rotate synchronously with torsion output shaft 321, and second belt pulley 312 then is attached at the drive division 51 (following narration) of magnetic powder cluth 5.

Described stress unit 4 comprises that one is positioned second transmission component 42 that rotating shaft 41 and on the body can driven rotary axle 41 be rotated by user's application of force rotatably.In this example, the cable pulley 422 and that second transmission component 42 includes gear reduction unit 421, a linked gear decelerator 421 of an interlock rotating shaft 41 is wound on the transmission rope 423 on the cable pulley 422.And as Fig. 3, when being applied in a foot muscles exercise apparatus, transmission rope 423 also can be subjected to another to be articulated in the coiling of the cable pulley 71 on the frame 7 and drive, and cable pulley 71 then can link a connecting rod 72, makes connecting rod 72 can raise with user foot in order to contact user foot and promotes to rotate.

Again simultaneously with reference to Fig. 4, described magnetic powder cluth 5 comprises a drive division 51, one follower 52, an a certain amount of magnetic 53 and a solenoid 54, wherein, follower 52 rotatably is linked in the drive division 51, and be formed with an accommodation space 510 around drive division 51 axis of rotation in the drive division 51, make and be provided with can be in accommodation space 510 a movable extension 521 on the follower 52 relatively, magnetic 53 then is to be filled in the accommodation space 510 and in the middle of the extension 521 of drive division 51 and follower 52, in addition, solenoid 54 roughly be positioned at drive division 51 accommodation space 510 positions the outside and be fixed on the body 2.During use, drive division 51 is on sealed second belt pulley 312 that is connected first transmission component 31 and can rotate synchronously with second belt pulley 312, but the axle center of follower 52 place then fit is fixed on the rotating shaft 41 and can rotates synchronously with rotating shaft 41, when solenoid 54 no powers, drive division 51 does not produce continuous action relation each other and is idling conditions mutually with follower 52, on the contrary, then can produce magnetic field during solenoid 54 energisings, the feasible magnetic 53 that is positioned at accommodation space 510 is subjected to magnetic field effect and magnetizes, and then mutually as assemble 521 media that engage of extension of formation drive division 51 and follower 52 as the chain, so that drive division 51 produces the interference effect of rotation with follower 52, the torsion of drive motor 32 can be passed on the rotating shaft 41 like this, then to be the magnetic field intensity that produces according to solenoid 54 increase and decrease in the mode of direct ratio size synchronously that transmit torsion, be that the strong torsion that transmits is healed more greatly in magnetic field, the magnetic field little torsion that then transmits of healing then reduces relatively, and when when solenoid 54 outage magnetic field being disappeared, 53 of magnetics in the accommodation space 510 are no longer assembled because of magnetic field, and be dispersed in the accommodation space 510 along with the centrifugal force of drive division 51 rotation, make drive division 51 and follower 52 form idling conditions again.

Described control module 6 is built-in with a control circuit and several control buttons, set also and then control the magnitude of current size of the solenoid 54 that passes through magnetic powder cluth 5 for the user, can regulate the size that drive motor 32 is passed to the torque value of rotating shaft 41 by magnetic powder cluth 5, and the load that can borrow as shown in Figure 3 the display unit 601 of LED cresset to set shows confession user reference, in addition, the control of control module 6 and Presentation Function also can be incorporated on the liquid crystal touch control formula screen.

Consult Fig. 2, Fig. 3 and Fig. 4, during application, drive motor 32 is with certain torsion output, continue to drive drive division 51 rotations of magnetic powder cluth 5 by first transmission component 31, and the raise action of user by foot promotes connecting rod 72 and cable pulley 71 rotated, by second transmission component, 42 interlock rotating shafts 41 follower 52 of magnetic powder cluth 5 is rotated again, makes that drive division 51 just is opposite with the direction of rotation of follower 52 each other.When solenoid 54 no powers, drive division 51 is idling conditions with follower 52, user foot only need overcome second transmission component, 42 gearing friction power own when promoting connecting rod 72 can make rotating shaft 41 rotate, can say and do not need to promote arduously connecting rod 72 and use this moment, and when use is set certain load strength with control module 6, control module 6 can be exported certain magnitude of current relatively by solenoid 54, when can causing rotating shaft 41 to rotate with respect to user's application of force, magnetic powder cluth 5 continues to have a reverse load torsion, so must overcoming this load torsion, user foot could promote connecting rod 72, therefore can reach the purpose of tempering foot muscles, and when use promotes to stop the application of force after connecting rod 72 turns an angle, because of the drive division 51 of magnetic powder cluth 5 keeps interference effect with follower 52 because of solenoid 54 continuous actions, torque magnitude driven rotary axle 41 reversed turnings that cause drive motor 32 to set with the user, make connecting rod 72 to have to be equal to the opposite direction application of force that the user sets load strength that user's foot is pushed back original position, only by the exercise apparatus of the one-sided application of force of user, the characteristics of bidirectional force applying of the present invention also can improve the effect of rehabilitation for the rehabilitation campaign compared to general.

In addition as shown in Figure 5, because it is repeatedly motion in certain rotational angle that user foot promotes that connecting rod 72 rotates, therefore the cable pulley 422 of second transmission component 42 does not have the user must be still in the place, fixed position under the situation of the application of force, so the wheel rim place of cable pulley 422 can be provided with a tab 4221 that extends and can move with curved path with the rotation of cable pulley 422 to body 2 directions, specific location then is fixed with a retaining piece 21 in order to contact tab 4221 on the body 2, as user not during the application of force, the blocking effect of borrowing tab 4221 and retaining piece 21 to be in contact with one another, can make cable pulley 422 turn to specific location with respect to body 2 can stop, and can keep connecting rod 72 can automatically return to initial position like this behind the each force application movement of user.In addition, tab 4221 can produce bump with retaining piece 21 during for fear of cable pulley 422 revolutions, can on retaining piece 21, be provided with a rubber-like bolster 22, by the bump strength between between bolster 22 available buffers two members of 4221 of retaining piece 21 and tabs, certainly, bolster 22 also can be located on the tab 4221, can reach identical effect.

Equally with reference to Fig. 5, control module 6 can further include one in order to measure the counter 61 that uses the motion cumulative number, in this example, counter 61 is to comprise that one is positioned the light blocking switch 611 on the body 2, one is positioned on the cable pulley 422 and along with the matte 612 that rotates and electrically connects the counting circuit (not shown) of light blocking switch 611 with received signal, when making cable pulley 422 turn to special angle when user's motion, matte 612 can interdict switch 611 by light and produce an electronic signal, and counting circuit can carry out the calculating of accumulative total at every turn when receiving this signal, and the result can be shown the reference for the user with a display unit 613 (as shown in Figure 3) such as the LED cresset.And when the user move unreliable and the matte 612 that makes cable pulley 422 when promptly not returning by light blocking switch 611, counting circuit will can not carry out the action of accumulative total, so this also helpful user of design reliably finishes the effect of each action.

Again as shown in Figure 6, for can being known, the user learns the application of force state of action each time, control module 6 also can further be provided with an amount of spin measuring appliance 62, make amount of spin measuring appliance 62 in order to the amount of spin of measuring rotating shaft 41 and be converted into an electronic signal, in this example, amount of spin measuring appliance 62 has a power shaft 621, power shaft 621 is provided with one first gear 622, and rotating shaft 41 is provided with second gear 623 of one and first gear, 622 engaged transmission, when rotating shaft 41 being rotated when user's motion, can the amount of spin of rotating shaft 41 be passed to power shaft 621 by second gear 623 and first gear 622, amount of spin measuring appliance 62 then is converted to electronic signal with rotatablely moving of power shaft 621, and the display unit 624 (as shown in Figure 3) of being arranged with several LED light lamps, size by bright lamp number makes the user can know the degree of learning that each action is carried out.

In sum, the present invention mainly imposes on the reverse load torsion of rotating shaft 41 1 by drive motor 32 and magnetic powder cluth 5, and by the current strength of the solenoid 54 of control magnetic powder cluth 5 to adjust the size of rotating shaft 41 load torsion, compared to the mode of using movement weight mass adjustment load, has the convenience in the adjustment in fact, and drive motor 32, magnetic powder cluth 5 collocation are the gear reduction unit 421 of single component, whole volume is not only less and do not take up space, also comparatively peace and quiet and security is also higher in the operation, and the characteristics of bidirectional force applying of the present invention are for also having good effect in the rehabilitation, and practicality improves more.

Claims

1, a kind of load device of exercise apparatus comprises that the application of force unit, that a body, is positioned on the described body is positioned the magnetic powder cluth of stress unit, a connection described application of force unit and described stress unit on the described body and the control module of the described magnetic powder cluth of a control; It is characterized in that:

Described application of force unit comprises that one is fixed on the described body and has first transmission component that the drive motor and of a torsion output shaft is driven by the torsion output shaft of described drive motor;

Described stress unit comprises that one is positioned rotating shaft on the described body and stressed to drive second transmission component that described rotating shaft rotates rotatably;

Described magnetic powder cluth comprise a drive division, that connects described first transmission component be sleeved in the described drive division rotatably and connect the follower of described rotating shaft, a certain amount of magnetic and between between described drive division and described follower is positioned at the solenoid outside the described drive division; And

Described control module is controlled the magnitude of current of the solenoid of described magnetic powder cluth.

2, the load device of exercise apparatus as claimed in claim 1 is characterized in that:

Described first transmission component includes one and is located at first belt pulley, on the torsion output shaft of described drive motor and connects second belt pulley of drive division of described magnetic powder cluth and the driving belt of described first belt pulley of an interlock and second belt pulley.

3, the load device of exercise apparatus as claimed in claim 1 is characterized in that:

The cable pulley and one that described second transmission component includes gear reduction unit, the described gear reduction unit of an interlock of the described rotating shaft of an interlock is wound in the transmission rope on the described cable pulley.

4, the load device of exercise apparatus as claimed in claim 1 is characterized in that:

The wheel rim place of described cable pulley is provided with a tab, then is positioned with the retaining piece of the described tab of a contact on the described body.

5, the load device of exercise apparatus as claimed in claim 4 is characterized in that:

Also be provided with a bolster between described retaining piece and described tab.

6, the load device of exercise apparatus as claimed in claim 1 is characterized in that:

Described control module also includes a counter.

7, the load device of exercise apparatus as claimed in claim 6 is characterized in that:

Described counter comprises that a light blocking switch, that is positioned on the described body is positioned on described second transmission component along with rotating the counting circuit that electrically connects described light blocking switch with the matte and by described light blocking switch.

8, the load device of exercise apparatus as claimed in claim 1 is characterized in that:

Described control module also includes an amount of spin measuring appliance that is subjected to the described second transmission component driven rotary.