CN2587457Y

CN2587457Y - Improved gearing mechanism for body building cycle

Info

Publication number: CN2587457Y
Application number: CN 02256509
Authority: CN
Inventors: 吴崎良
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-09-20
Filing date: 2002-09-20
Publication date: 2003-11-26
Anticipated expiration: 2012-09-20

Abstract

The utility model discloses an improved gearing mechanism for a body building cycle. The conventional type body building cycle mainly adopts the flexible transmission mode to transmit a magnetic controlled wheel. The flexible transmission space is needed, so that the obsession of the oversize volume of the body building cycle is caused. A planetary gear set is designed to be served as a gearing mechanism of the utility model, so that the planetary gear set and the magnetic controlled wheel are arranged on the same pedal transmission shaft for drive. Therefore, the magnetic controlled wheel and the gearing mechanism of the body building cycle can be arranged on the same shaft center. The configuration space is effectively saved in such manner to reach the goal of reducing the volume of a cycle body.

Description

The modified transmission mechanism of exercycle

Technical field

The utility model relates to a kind of modified transmission mechanism of exercycle, and the improvement of outstanding reference and a kind of exercycle transmission mechanism is more dwindled in the hope of making its volume.

Background technology

Common on the market at present, being used for analog bicycle drives the fitness equipment of motion, its inner drive structure is identical with present most of bicycle, how in the mode of flexible driving (as chain drive or belt transmission), coming transmission one magnetic control wheel to form rotates, and come this magnetic control wheel is carried out the attraction of different magnetic force sizes with a magnetic means, the resistance when changing the user by this and trampling reaches to simulate and goes up a slope or the effect in different highway sections such as descending.

Yet, commonly using exercycle utilizes the flexible driving magnetic control to take turns 20 design (as shown in Figure 6), though can reach the purpose of effective transmission magnetic control wheel 20, yet because the driving wheel 61 and the driven pulley 62 of its flexible gearing 60, must be arranged on two-parallel axis (as shown in Figure 6) in the heart with certain distance, so exercycle must be designed to elongated car body 70, can ccontaining its flexible gearing 60, so elongated car body 70 designs, not only when using storing, quite take up an area of space of planes, and when carrying also easily because of volume is big, and increase puzzlement in the carrying on foot, in addition improved necessity is arranged in fact.

Summary of the invention

The purpose of this utility model is: a kind of configuration space of saving the exercycle driving member is provided, reaches the modified transmission mechanism of the exercycle that can dwindle body-building car body volume effectively.

For realizing above-mentioned purpose, a kind of modified transmission mechanism of exercycle is proposed, mainly be on the support of exercycle, to set firmly inner circular tooth wheel, and place with the pedal drive shaft of exercycle and to be hubbed at above-mentioned support and inner circular tooth wheel, this pedal drive shaft is positioned at the inner toothed surface side of inner circular tooth wheel again, a then sheathed affixed spiral arm, this spiral arm inner toothed surface of rim gear wheel inwardly extends elongated end, and stretching of this spiral arm respectively is pivoted on the end one can form planet gear meshed with the inner toothed surface of this inner circular tooth wheel, pedal drive shaft is positioned on the transmission shaft lever in the planetary gear outside again, then with the sheathed magnetic control wheel of bearing, and the wheel face outer fix that exercycle is taken turns with respect to this magnetic control, then being provided with one can utilize magnetic force to change the magnetic means of magnetic control wheel rotational resistance, and this magnetic control wheel then protrudes out one along pedal drive shaft and can form the central gear portion of meshing with planetary gear towards a planetary side.

Advantageously, this spiral arm protrudes out three long elongated ends, and respectively is pivoted with a planet gear on the end of each elongated end, and makes the central gear portion of this magnetic control wheel be positioned at the formation engagement of three planetary central authorities.

Wherein, the inner toothed surface of this inner circular tooth wheel, can be a V-shaped tip, and respectively these planetary outer peripheral edges can be provided with a V-arrangement ditch that contacts with the tip of this inner circular tooth wheel respectively, in addition the central gear portion of this magnetic control wheel also is provided with V-shaped without exception tip, and this tip can contact with this planetary V-arrangement ditch respectively.

Description of drawings

Fig. 1: the longitudinal profile schematic diagram of the utility model preferred embodiment.

Fig. 2: the 2-2 generalized section of the utility model Fig. 1.

Fig. 3: the side configuration schematic diagram of the utility model preferred embodiment.

Fig. 4: the generalized section of another embodiment of the utility model.

Fig. 5: the side configuration schematic diagram of another embodiment of the utility model.

Fig. 6: the internal configurations schematic diagram of commonly using exercycle.

The specific embodiment

At first please cooperate referring to Fig. 1, Fig. 2 and shown in Figure 3, the modified transmission mechanism of the utility model pedal body building vehicle wherein, mainly be fixedly arranged on the support 40 of exercycle seat cushion below, as Fig. 1, shown in Figure 3, wherein on the support 40 of this fitness equipment, be installed with a planet gear train 10, one and the magnetic control wheel 20 of these planetary gearsets 10 interlocks, and can control the magnetic means 200 that attracts this magnetic control wheel 20, and with one by pedal-actuated pedal drive shaft 30, pass planetary gearsets 10 and magnetic control wheel 20 in regular turn and form transmission, wherein:

This planetary gearsets 10 is fixedly arranged on the support 40 of fitness equipment with inner circular tooth wheel 11, and make the pedal drive shaft 30 of exercycle, being hubbed at support 40 with bearing 31 takes turns on 11 (as shown in Figure 1) with inner circular tooth, this pedal drive shaft 30 is positioned at the inner toothed surface side of inner circular tooth wheel 11 again, then be nested with one be fixed on the pedal drive shaft 30 with its with moving spiral arm 12, this spiral arm 12 inner toothed surface of rim gear wheel 11 inwardly extends three isometric elongated ends, and make and respectively be pivoted with a planetary gear 13 that can be meshed on each elongated end of spiral arm 12 with the inner toothed surface of this inner circular tooth wheel 11, so that this pedal drive shaft 30 can drive the planetary gear 13 on the spiral arm 12, on the flank of tooth of inner circular tooth wheel 11, form revolution;

In addition, be positioned on the pedal drive shaft 30 in the outside of inner circular tooth wheel 11, then again with bearing 32 sheathed pivot joint one magnetic control wheels 20, this magnetic control is taken turns the 20 wheel faces outside, then being provided with one can magnetic attraction increase magnetic control and takes turns the magnetic means 200 of 20 rotational resistances (because this magnetic means 200 is located by prior art, seldom give unnecessary details at this so hold), and make this magnetic control wheel 20 towards planetary gearsets 10 1 sides, then along the middle position of pedal drive shaft 30 towards three groups of planetary gears 13, protrude out one can be respectively with planetary gearsets 10 in three groups of planetary gears 13 form the central gear portion 21 of engagement.

By this, when exercycle of the present utility model when using (as Fig. 1, shown in Figure 2), but user's pushes pedals drives pedal drive shaft 30 and rotates, and come transmission spiral arm 12 to rotate synchronously by pedal drive shaft 30, further order about each planetary gear 13 on the spiral arm 12, magnetic control along inner circular tooth wheel 11 and central authorities is taken turns 21 windings of 20 central gear portions, and make of the action (as shown in Figure 2) of each planetary gear 13 with rotation and revolution, just can utilize inner circular tooth wheel 11 with this, the speed ratio effect of spiral arm 12 and central gear portion 21, come transmission to make magnetic control wheel 20 form the doubly rotation of speed, reach exercycle with pedal drive magnetic control wheel 20, to carry out the purpose of magnetic control simulation road conditions pattern.

In addition, please cooperate again referring to shown in Figure 3, because the utility model utilizes planetary gearsets 10 as transmission mechanism, and make between this planetary gearsets 10 and the magnetic control wheel 20, all can be arranged on and carry out the doubly transmission start of speed on the same pedal drive shaft 30, make the utility model exercycle when implementing with this, its planetary gearsets 10 as transmission mechanism is same axle center with magnetic control wheel 20, there is no parallel distance between the two, and by this design, exercycle of the present utility model utilizes a short type car body 50, transmission mechanism that can the utility model is all is ccontaining, compared to the elongated car body 70 of commonly using exercycle (as shown in Figure 6 commonly use exercycle), almost can save, shortened nearly half volume length (as the comparison of Fig. 3 and Fig. 6), make the utility model can save the configuration space of transmission mechanism, reach the effect of dwindling body-building car body volume effectively.

Certainly, the inner toothed surface of inner circular tooth wheel 11 of the present utility model, can be a V-shaped tip 110, and respectively the outer peripheral edges of this planetary gear 13 can be provided with a V-arrangement ditch 130 that contacts with the tip 110 of this inner circular tooth wheel 11 respectively, the central gear portion 21 of this magnetic control wheel 20 also is provided with V-shaped without exception tip 210 in addition, this tip 210 can contact (as Fig. 4 and shown in Figure 5) with the V-arrangement ditch 130 of this planetary gear 13 respectively, also can make respectively this planetary gear 13 with the action of rotation and revolution.

Comprehensive the above as can be known, the utility model can effectively reduce the volume length of its external form really compared to commonly using exercycle, reaches exercycle and puts and do not take up space, and carries more easy and convenient purpose.

Claims

1, a kind of modified transmission mechanism of exercycle, it is characterized in that: mainly be on the support of exercycle, to set firmly inner circular tooth wheel, and place with the pedal drive shaft of exercycle and to be hubbed at above-mentioned support and inner circular tooth wheel, this pedal drive shaft is positioned at the inner toothed surface side of inner circular tooth wheel again, a then sheathed affixed spiral arm, this spiral arm inner toothed surface of rim gear wheel inwardly extends elongated end, and stretching of this spiral arm respectively is pivoted on the end one can form planet gear meshed with the inner toothed surface of this inner circular tooth wheel, pedal drive shaft is positioned on the transmission shaft lever in the planetary gear outside again, then with the sheathed magnetic control wheel of bearing, and the wheel face outer fix that exercycle is taken turns with respect to this magnetic control, then being provided with one can utilize magnetic force to change the magnetic means of magnetic control wheel rotational resistance, and this magnetic control wheel then protrudes out one along pedal drive shaft and can form the central gear portion of meshing with planetary gear towards a planetary side.

2, as the modified transmission mechanism of claims 1 described exercycle, it is characterized in that: this spiral arm protrudes out three long elongated ends, and on the end of each elongated end, respectively be pivoted with a planet gear, and make the central gear portion of this magnetic control wheel be positioned at the formation engagement of three planetary central authorities.

3, as the modified transmission mechanism of claims 1 described exercycle, it is characterized in that: the inner toothed surface of this inner circular tooth wheel, must think a V-shaped tip, and respectively these planetary outer peripheral edges are provided with a V-arrangement ditch that contacts with the tip of this inner circular tooth wheel respectively, in addition the central gear portion of this magnetic control wheel also is provided with V-shaped without exception tip, and this tip is able to contact with this planetary V-arrangement ditch respectively.