CN2443745Y - Chain gearing commutator for body building cycle - Google Patents
Chain gearing commutator for body building cycle Download PDFInfo
- Publication number
- CN2443745Y CN2443745Y CN 00240564 CN00240564U CN2443745Y CN 2443745 Y CN2443745 Y CN 2443745Y CN 00240564 CN00240564 CN 00240564 CN 00240564 U CN00240564 U CN 00240564U CN 2443745 Y CN2443745 Y CN 2443745Y
- Authority
- CN
- China
- Prior art keywords
- flywheel
- advancing
- advance
- cover
- move back
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Transmission Devices (AREA)
Abstract
The utility model relates to a chain gearing commutator for a body building cycle. The utility model is provided with a chain wheel case with a chain wheel, and an advancing and a withdrawing flywheels; the advancing and the withdrawing flywheels are respectively provided with an advancing and a withdrawing output shafts of an advancing and a withdrawing single false keys, wherein, the advancing and the withdrawing flywheels are in coaxial line adjacency. The periphery is respectively and fixedly provided with fixing pieces of an advancing and a withdrawing toggle devices, and also is provided with a shifting fork device which is formed by movably connecting two shifting fork heads and a shifting fork connecting rod. The utility model has a neutral and has the advantages of easy switching of the advancement and the withdrawing, difficult damage to the relevant parts, and long service life.
Description
The utility model relates to the body-building apparatus field in the sports goods, particularly relates to a kind of pedal-type fitness bicycle and advances and switch the reversing arrangement of usefulness with fallback mode.
Existing pedal-type fitness bicycle motion mode is generally a kind of mode of advancing, and abroad also has to advance and the pedal-type fitness bicycle appearance that retreats dual mode.Preceding a kind of exercising pattern is single, and lacks interesting; A kind of no neutral gear transition in back, dual mode directly switches, and the relevant parts of fragile reversing arrangement do not have neutral gear in addition, are unfavorable for demiware or professor's movement technique among a small circle.
The purpose of this utility model is to overcome above-mentioned defective, designs a kind ofly to have neutral gear and advance and retreat the exercycle chain drive reversing arrangement of easy switching.
The technical scheme that realizes above-mentioned purpose is as follows: exercycle chain drive reversing arrangement, has a sprocket housing that has a sprocket wheel, the sprocket housing inner ring connects advancing flywheel and moving back flywheel side by side simultaneously by a positioning sleeve, advance flywheel and move back flywheel and install in the mode of counterturn, and both inner rings respectively with have advancing in the flywheel of external splines and overlap, move back cover splined in the flywheel, advance cover in the flywheel, moving back the end of cover in the flywheel stretches out outside the sprocket housing, adjacent advance output shaft and move back output shaft with sprocket housing is coaxially set, advancing output shaft is provided with into single false key and cancels the order false key with the outer peripheral sidewall of moving back output shaft, and its periphery is fixed with respectively into to stir the device fixture and move back stirs the device fixture, advancing to stir the device fixture stirs a device fixture end separately and is connected with respectively by ball bearing and all has advancing the shift fork seat and moving back the shift fork seat of fork slot with moving back, also has a shifting fork device, by forming movable connection of two shift fork heads and shift fork connecting rod, the shift fork head at its two ends stretches into into the shift fork seat respectively and moves back in the fork slot of shift fork seat, advance to stir the device fixture with move back stir the device fixture other end separately be fixedly connected respectively into internal spline with move back internal spline, and respectively with advance in the flywheel cover and move back in the flywheel cover splined of living.
According to the further technical measures of aforementioned schemes, the internal layer that describedly advance cover in the flywheel, moves back cover in the flywheel is provided with oiliness bearing, and its can with advance output shaft and move back output shaft list false key and connect.
According to the utility model, stir shifting fork device, making forward and back stir the device fixture by forward and back shift fork seat moves along same axis direction, for example to moving back output shaft direction (left), then advance to stir the device fixture drive into internal spline and advance flywheel in cover connect in the spline mode of living, moving back internal spline then with in moving back flywheel overlaps and separates, so, then the power of sprocket wheel is then by advancing flywheel, advance in the flywheel cover, advance internal spline, advancing to stir the device fixture and pass to into output shaft, this moment, exercycle was in forward travel state, moved back output shaft simultaneously and did not then have motion; Otherwise, stir shifting fork device, make forward and back stir the device fixture and move right, then exercycle is in fallback state; When striking gear mediated, exercycle was in the neutral state.The utility model has neutral gear and advances and retreat easy switching, and relevant parts are not fragile, long service life.
Below in conjunction with description of drawings embodiment:
Fig. 1 is the structural representation of the utility model embodiment.
Sprocket housing 1 inner ring that has a sprocket wheel 12 connects advancing flywheel 31 and moving back flywheel 32 side by side simultaneously by a positioning sleeve 2, advance flywheel 31 and move back flywheel 32 and install in the mode of counterturn, and both inner rings respectively with have advancing of external splines and overlap 41 in the flywheel, move back cover 42 splined in the flywheel, advance cover 41 in the flywheel, moving back the end of cover 42 in the flywheel stretches out outside the sprocket housing 1, adjacent advance output shaft 51 and move back output shaft 52 with sprocket housing 1 is coaxially set, advancing output shaft 51 is provided with into single false key 511 and cancels the order false key 521 with the outer peripheral sidewall of moving back output shaft 52, and its periphery is fixed with respectively into stirs device fixture 61 and stirs device fixture 62 with moving back, advancing to stir device fixture 61 stirs device fixture 62 end separately and is connected with respectively by ball bearing 7 and all has advancing shift fork seat 91 and moving back shift fork seat 92 of fork slot 8 with moving back, also has a shifting fork device 10, by forming two shift fork heads 101 and 102 movable connections of shift fork connecting rod, the shift fork head 101 at its two ends stretches into into shift fork seat 91 respectively and moves back in the fork slot 8 of shift fork seat 92, advance to stir device fixture 61 with move back stir device fixture 62 other end separately be fixedly connected respectively into internal spline 111 with move back internal spline 112, and respectively with advance in the flywheel cover 41 and move back in the flywheel cover 42 splined of living, advance cover 41 in the flywheel, the internal layer that moves back cover 42 in the flywheel is provided with oiliness bearing 12, and all can with advance output shaft 51 and move back output shaft 52 single false keys and connect.
Claims (2)
1, exercycle chain drive reversing arrangement, has a sprocket housing that has a sprocket wheel, it is characterized in that: the sprocket housing inner ring connects advancing flywheel and moving back flywheel side by side simultaneously by a positioning sleeve, advance flywheel and move back flywheel and install in the mode of counterturn, and both inner rings respectively with have advancing in the flywheel of external splines and overlap, move back cover splined in the flywheel, advance cover in the flywheel, moving back the end of cover in the flywheel stretches out outside the sprocket housing, adjacent advance output shaft and move back output shaft with sprocket housing is coaxially set, advancing output shaft is provided with into single false key and cancels the order false key with the outer peripheral sidewall of moving back output shaft, and its periphery is fixed with respectively into to stir the device fixture and move back stirs the device fixture, advancing to stir the device fixture stirs a device fixture end separately and is connected with respectively by ball bearing and all has advancing the shift fork seat and moving back the shift fork seat of fork slot with moving back, also has a shifting fork device, by forming movable connection of two shift fork heads and shift fork connecting rod, the shift fork head at its two ends stretches into into the shift fork seat respectively and moves back in the fork slot of shift fork seat, advance to stir the device fixture with move back stir the device fixture other end separately be fixedly connected respectively into internal spline with move back internal spline, and respectively with advance in the flywheel cover and move back in the flywheel cover splined of living.
2, exercycle chain drive reversing arrangement according to claim 1 is characterized in that: the internal layer that describedly advance cover in the flywheel, moves back cover in the flywheel is provided with oiliness bearing, and its can with advance output shaft and move back output shaft list false key and connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240564 CN2443745Y (en) | 2000-10-11 | 2000-10-11 | Chain gearing commutator for body building cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00240564 CN2443745Y (en) | 2000-10-11 | 2000-10-11 | Chain gearing commutator for body building cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2443745Y true CN2443745Y (en) | 2001-08-22 |
Family
ID=33601187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00240564 Expired - Fee Related CN2443745Y (en) | 2000-10-11 | 2000-10-11 | Chain gearing commutator for body building cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2443745Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612677A (en) * | 2016-12-24 | 2017-05-10 | 张科全 | Transmission device changing agricultural-machine operation direction |
-
2000
- 2000-10-11 CN CN 00240564 patent/CN2443745Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106612677A (en) * | 2016-12-24 | 2017-05-10 | 张科全 | Transmission device changing agricultural-machine operation direction |
| CN106612677B (en) * | 2016-12-24 | 2018-10-26 | 张科全 | The driver in agricultural machinery working direction can be changed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |