CN102139146A - Method for applying oil pump type unidirectional damper on fitness equipment - Google Patents
Method for applying oil pump type unidirectional damper on fitness equipment Download PDFInfo
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- CN102139146A CN102139146A CN2011100049419A CN201110004941A CN102139146A CN 102139146 A CN102139146 A CN 102139146A CN 2011100049419 A CN2011100049419 A CN 2011100049419A CN 201110004941 A CN201110004941 A CN 201110004941A CN 102139146 A CN102139146 A CN 102139146A
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Abstract
The invention discloses a method for applying an oil pump type unidirectional damper on fitness equipment, which specifically comprises the steps of: fixedly arranging an oil pump type damper on the fitness equipment, and providing resistance required by the fitness equipment to act through the oil pump type damper, wherein the oil pump type damper comprises an oil inlet, an oil outlet, an oil cavity and an oil pumping device, wherein the oil inlet and the oil outlet are respectively arranged on the oil cavity and communicated with the oil cavity; the oil pumping device is arranged in the oil cavity; oil is pumped into the oil cavity from the oil inlet through action of the oil pumping device, and then the oil is extruded out of the oil cavity from the oil outlet through action of the oil pumping device, and the processes of pumping oil into the oil cavity and extruding oil out of the oil cavity are repeated. In the process, the resistance generated by the oil flowing in the oil cavity acts on the oil pumping device, and the overall flow rate of the oil is limited so that the load of the oil pumping device is increased.
Description
Technical field
The present invention relates to a kind of method of on body-building apparatus, using damper, be meant especially a kind of oil pump formula damper to be fixedly installed on the body-building apparatus, the application process that provides this body-building apparatus to move needed resistance by this oil pump formula damper.
Background technology
As everyone knows, more and more pay close attention to the health condition of self along with the present people of the progress of society, and keep the most direct means of health is exactly to carry out an amount of body building, human body mainly includes oxygen motion and anaerobic exercise in the process of body-building, wherein, and aerobic exercise, as the term suggests under the aerobic metabolism state, take exercises exactly, move for a long time, make the heart (blood circulation system), lung (respiratory system) obtain sufficient effective stimulus, improve the heart, PFT.Thereby allow each tissue of whole body, organ obtain good oxygen and nutrition supply, keep best function status.Aerobic exercise is a kind of to improve human tolerance quality, and strengthening cardio-pulmonary function is the purpose sports, many times also is used as to lose weight.Adhere to that for a long time aerobic exercise can increase the quantity of hemoglobin in the body, improve Abwehrkraft des Koepers, anti-ageing, strengthen corticocerebral operating efficiency and cardio-pulmonary function, increase fat consumption, prevent artery sclerosis, reduce the incidence of disease of cardiovascular and cerebrovascular disease.If the slimmer is when rationally arranging food, in conjunction with aerobic exercise, not only fat-reducing can be successful, and the body weight after the fat-reducing also can obtain consolidating.Aerobic exercise also is very useful for the brain worker.In addition, aerobic exercise also possesses the effect of recovering physical efficiency.
Characteristics just because of above-mentioned aerobic exercise, people pay much attention to aerobic exercise when carrying out body building, in order to make carrying out that people can be convenient all be equipped with relevant aerobic exercise body-building apparatus in the now general gymnasium of aerobic exercise, more typically such as Exercycle and ellipsograph.Wherein, ellipsograph as the term suggests be exactly people's sole when walking or run, route of each step process is an ellipse substantially.Ellipsograph has two pedals, their movement locus also is oval, when people move on it, feel walking or running, but sole does not leave pedal, make people both enjoy the enjoyment of walking or running like this, probability to joint injury reduces again, now ellipsograph divides two kinds again, a kind ofly can only do the motion that regresses, and another kind then requires people to use both hands and feet.
It all comprises support and damper in structure for Exercycle and ellipsograph, wherein the resistance when providing people to move is provided on the support damper, but with regard to being applied in regard to the damper on Exercycle and the ellipsograph of occurring on the market now all is the structure that adopts flying wheel, specifically describe and all comprise the flying wheel part for traditional damper, power transfer part and power importation, wherein, the power importation is connected with the pedal of Exercycle or ellipsograph, the power transfer part is connected between flying wheel part and the power importation, flying wheel comprises that partly wheel body and damping produce part, damping produces part and wheel body is produced just can rotate after thereby frictional force or the resistance of motion make wheel body only overcome certain resistance of motion, thereby reach when people trample Exercycle or ellipsograph and must pay certain amount of exercise, reach the effect of body-building at last, damping produces part and generally realizes by friction plate or solenoid now.
So but above-mentioned damper is because its general volume of restriction of its structure and operation principle is all huger, and all more complicated of step are produced and safeguarded to the structure more complicated simultaneously, traditional in addition isolator also exists bulky when in use, complex structure is produced simultaneously and is safeguarded that step is all more loaded down with trivial details, and this is the major defect for conventional art.
Summary of the invention
The invention provides the application process of a kind of oil pump formula one-way damper on body-building apparatus, the present invention is fixedly installed on oil pump formula damper on the body-building apparatus, provide this body-building apparatus to move needed resistance by this oil pump formula damper, simultaneously because so the present invention has adopted oil pump formula damper can omit the intermediate power transferring structure, to reach the overall dimensions that dwindles body-building apparatus, reduce the effect of footprint, and this is a main purpose of the present invention.
Thereby the present invention mainly is the limited load increasing that makes oil pumping device of flow that makes fluid by the one-way flow of fluid, being reached for body-building apparatus provides the effect of resistance, the present invention has avoided using the loaded down with trivial details step of common isolator, reaches the purpose that is convenient for people to use by the improvement to structure and method.
The technical solution used in the present invention is: the application process of oil pump formula one-way damper on body-building apparatus, oil pump formula damper is fixedly installed on the body-building apparatus, and provide this body-building apparatus to move needed resistance by this oil pump formula damper.
This oil pump formula damper generation resistance that in concrete work, forward moves, and do not produce resistance this oil pump formula damper reverse movement the time.
This oil pump formula damper comprises oil-in, oil-out, oil pocket and oil pumping device, wherein, this oil-in and this oil-out are separately positioned on this oil pocket, and, this oil-in and this oil-out are connected with this oil pocket respectively, and this oil pumping device is arranged in this oil pocket, and the action by this oil pumping device sucks fluid in this oil pocket from this oil-in, the action by this oil pumping device then outside this oil-out is extruded this oil pocket, so moves in circles fluid.
Fluid flows in this oil pocket in above-mentioned process, the limited drag effect that produces of the flow of this fluid that is to say that this oil pumping device has only overcome fluid mobile required this oil pumping device of the resistance that overcomes in this oil pocket and just can move on this oil pumping device.
Fluid is provided with volume control device in the mobile formed oil circuit in this oil pocket, thereby reach the effect of the resistance size that this oil pump formula damper of control produced by the flow that this volume control device can be controlled fluid, this volume control device is from the flow of this fluid of single direction control
This oil-in place is provided with the adjusting valve block, this adjusting valve block is connected with adjusting rod, this adjusting valve block can be with respect to this oil-in turn to control the flow of the fluid that flows in this oil-in, can adjust position relation between this adjusting valve block and this oil-in to control the flow of the fluid that flows in this oil-in by controlling this adjusting rod, this oil pumping device comprises main shaft, and this main shaft is connected with the action part of this body-building apparatus.
As mentioned above because the present invention provides body-building apparatus to move needed resistance by oil pump formula damper, so it is steady that the body-building apparatus that utilizes technical scheme of the present invention to produce has motion mode, the characteristics that noise is little, utilize the body-building apparatus that technical scheme of the present invention produces simultaneously owing to omitted intermediate power transferring structure and traditional isolator, so can dwindle the overall dimensions of body-building apparatus greatly, reduce footprint.
The present invention is in concrete enforcement, this oil pump formula damper comprises cylinder body, top cover, bottom and belt pulley, wherein, this top cover and this bottom are to cover respectively to be located at up and down two ends of this cylinder body, and center on this oil pocket of formation by this top cover, this bottom and this cylinder body, this oil-in and this oil-out are separately positioned on this bottom, and this oil pumping device is arranged in this oil pocket, and this belt pulley is connected an end of this main shaft of this oil pumping device.
This oil pumping device also comprises internal gear and external gear, wherein, this external gear is arranged in this oil pocket, this external gear has interior tooth cavity, this internal gear is articulated in the interior tooth cavity of being somebody's turn to do of this external gear by this spindle eccentricity, and tooth cavity has some recessed teeth in this, and this internal gear has some double wedges, this internal gear is engaged in this interior tooth cavity, and the quantity of this recessed tooth of this interior tooth cavity is more than the quantity of this double wedge of this internal gear.
In the time of this oil pump formula damper work, this belt pulley is by connecting the action part of this body-building apparatus, this belt pulley drives this main shaft rotation of this oil pumping device when the action part of body-building apparatus moves, this moment, this internal gear is moving in the interior tooth cavity transfer of this external gear, because so this internal gear is to be articulated in the movement locus of the axis of this internal gear in the tooth cavity in being somebody's turn to do of this external gear for circular by this spindle eccentricity, synchronous therewith, this external gear rotates in this oil pocket, in above-mentioned process, motion by this internal gear and this external gear, fluid is sucked in this oil pocket from this oil-in, the action by this oil pumping device then with fluid outside this oil-out is extruded this oil pocket, so move in circles, fluid flows the drag effect produced on this oil pumping device in this oil pocket, with the purpose of the action part dynamics that reaches this body-building apparatus of control.
The present invention can also be in this internal gear in concrete enforcement sheathed a plurality of internal gears, be meshing with each other between the internal gear, this main shaft is connected with the most inboard internal gear, can further promote the robust motion of body-building apparatus in this way, and further reduce operating noise.
The present invention's this oil pump formula damper in concrete enforcement can adopt the leaf pump structure, that is to say that this oil pump formula damper comprises cylinder body, top cover, bottom and belt pulley, wherein, this top cover and this bottom are to cover respectively to be located at up and down two ends of this cylinder body, and center on this oil pocket of formation by this top cover, this bottom and this cylinder body, this oil-in and this oil-out are separately positioned on this bottom, this oil pumping device is arranged in this oil pocket, and this belt pulley is connected an end of this main shaft of this oil pumping device.
This oil pumping device comprises swivel becket and some blades, some these blades are plugged in around this swivel becket, this swivel becket is eccentrically set in this oil pocket, and this swivel becket is connected with this main shaft of this oil pumping device, and some these blades all form the relation that holds with the inner surface of this oil pocket respectively.
When this swivel becket rotates in this oil pocket some these blade order do around this swivel becket to stretch out and in the action of contracting fluid is sucked in this oil pocket from this oil-in, the action by this oil pumping device then with fluid outside this oil-out is extruded this oil pocket, so move in circles, fluid flows the drag effect produced on this oil pumping device in this oil pocket, with the purpose of the action part dynamics that reaches this body-building apparatus of control.
This body-building apparatus is an Exercycle in concrete enforcement, and Exercycle comprises pedal, and this pedal is connected on this main shaft of this oil pumping device by connecting rod.
This body-building apparatus also can be ellipsograph in concrete enforcement, ellipsograph comprises pedal and handle, and this pedal and this handle link together by trace and together be connected on this main shaft of this oil pumping device.
Beneficial effect of the present invention is: the present invention is the resistance that provides body-building apparatus to move needed any size by oil pump formula damper as mentioned above, the present invention's non-resistance counter-rotational the time increases, so it is steady that the body-building apparatus that utilizes technical scheme of the present invention to produce has motion mode, the characteristics that noise is little, utilize the body-building apparatus that technical scheme of the present invention produces simultaneously owing to omitted the intermediate power transferring structure, so can dwindle the overall dimensions of body-building apparatus greatly, reduce footprint.The parts of an one-way damper of the present invention have replaced all multi-parts such as flying wheel, intermediate transmission mechanism and belt in traditional body-building apparatus simultaneously, have transmission good effectiveness simple in structure.
Description of drawings
Fig. 1 is the structural principle schematic diagram of invention;
Fig. 2 is the decomposition texture schematic diagram of the oil pump formula damper of invention;
Fig. 3 is the structural representation of the oil pump formula damper of invention;
Fig. 4 is the structural representation of another embodiment of oil pump formula damper of invention;
Fig. 5 is the front view of the bottom of the oil pump formula damper of invention;
Fig. 6 is the rearview of the bottom of the oil pump formula damper of invention.
The specific embodiment
Shown in Fig. 1 to 6, the application process of oil pump formula one-way damper on body-building apparatus is fixedly installed on oil pump formula damper on the body-building apparatus, provides this body-building apparatus to move needed resistance by this oil pump formula damper.
As shown in Figure 1, this oil pump formula damper comprises oil-in 11, oil-out 12, oil pocket 13 and oil pumping device 20, wherein, this oil-in 11 and this oil-out 12 are separately positioned on this oil pocket 13, and, this oil-in 11 and this oil-out 12 are connected with this oil pocket 13 respectively, this oil pumping device 20 is arranged in this oil pocket 13, action by this oil pumping device 20 sucks fluid in this oil pocket 13 from this oil-in 11, the action by this oil pumping device 20 then outside this oil-out 12 is extruded this oil pocket 13, so moves in circles fluid.
Fluid mobile drag effect that is produced in this oil pocket 13 that is to say that this oil pumping device 20 has only overcome fluid mobile this oil pumping device 20 of the required resistance that overcomes in this oil pocket 13 and just can move on this oil pumping device 20 in above-mentioned process.
These oil-in 11 places are provided with and regulate valve block 31, and this adjusting valve block 31 is connected with adjusting rod 32, and this adjusting valve block 31 can rotate to control the flow of the fluid that flows in this oil-in 11 with respect to this oil-in 11.
Can adjust position relation between this adjusting valve block 31 and this oil-in 11 to control the flow of the fluid that flows in this oil-in 11 by controlling this adjusting rod 32.
This oil pumping device 20 comprises main shaft 21, and this main shaft 21 is connected with the action part of this body-building apparatus,
As mentioned above because the present invention provides body-building apparatus to move needed resistance by oil pump formula damper, so it is steady that the body-building apparatus that utilizes technical scheme of the present invention to produce has motion mode, the characteristics that noise is little, utilize the body-building apparatus that technical scheme of the present invention produces simultaneously owing to omitted the intermediate power transferring structure, so can dwindle the overall dimensions of body-building apparatus greatly, reduce footprint.
Shown in Fig. 2,3, the present invention is in concrete enforcement, this oil pump formula damper comprises cylinder body 41, top cover 42, bottom 43 and belt pulley 44, wherein, this top cover 42 and this bottom 43 are to cover respectively to be located at this cylinder body about in the of 41 two ends, and by this top cover 42, this bottom 43 and this cylinder body 41 around forming this oil pocket 13.
This oil-in 11 and this oil-out 12 are separately positioned on this bottom 43.
This oil pumping device 20 is arranged in this oil pocket 13.
This belt pulley 44 is connected an end of this main shaft 21 of this oil pumping device 20.
This oil pumping device 20 also comprises internal gear 22 and external gear 23, and wherein, this external gear 23 is arranged in this oil pocket 13, and this external gear 23 has interior tooth cavity 231, and this internal gear 22 is articulated in the interior tooth cavity 231 of being somebody's turn to do of this external gear 23 by these main shaft 21 off-centre.
Should in tooth cavity 231 have some recessed teeth 232, this internal gear 22 has some double wedges 221, this internal gear 22 is engaged in this in tooth cavity 231, and should in the quantity of this recessed tooth 232 of tooth cavity 231 more than the quantity of this double wedge 221 of this internal gear 22.
In the time of this oil pump formula damper work, this belt pulley 44 is by connecting the action part of this body-building apparatus, this belt pulley 44 drives these main shaft 21 rotations of these oil pumping devices 20 when the action part of body-building apparatus moves, this moment, this internal gear 22 rotates in the interior tooth cavity 231 of this external gear 23, because so this internal gear 22 is to be articulated in the movement locus of the axis of this internal gear 22 in the tooth cavity 231 in being somebody's turn to do of this external gear 23 for circular by these main shaft 21 off-centre, synchronous therewith, this external gear 23 rotates in this oil pocket 13, in above-mentioned process, motion by this internal gear 22 and this external gear 23, fluid is sucked in this oil pocket 13 from this oil-in 11, the action by this oil pumping device 20 then with fluid outside this oil-out 12 is extruded this oil pocket 13, so move in circles, fluid flows the drag effect produced on this oil pumping device 20 in this oil pocket 13, with the purpose of the action part dynamics that reaches this body-building apparatus of control.
The present invention can also be in this internal gear 22 in concrete enforcement sheathed a plurality of internal gears, be meshing with each other between the internal gear, this main shaft 21 is connected with the most inboard internal gear, can further promote the robust motion of body-building apparatus in this way, and further reduce operating noise.
As shown in Figure 4, the present invention's this oil pump formula damper in concrete enforcement can adopt the leaf pump structure, that is to say that this oil pump formula damper comprises cylinder body, top cover, bottom and belt pulley, wherein, this top cover and this bottom are to cover respectively to be located at up and down two ends of this cylinder body, and center on this oil pocket of formation by this top cover, this bottom and this cylinder body, this oil-in and this oil-out are separately positioned on this bottom, this oil pumping device 20 is arranged in this oil pocket 13, and this belt pulley is connected an end of this main shaft 21 of this oil pumping device 20.
This oil pumping device 20 comprises swivel becket 51 and some blades 52, and some these blades 52 are plugged in around this swivel becket 51, and this swivel becket 51 is eccentrically set in this oil pocket 13, and this swivel becket 51 is connected with this main shaft 21 of this oil pumping device 20.
Some these blades 52 all form the relation that holds with the inner surface of this oil pocket 13 respectively.
When this swivel becket 51 rotates in this oil pocket 13 some this blades 52 orders around this swivel becket 51, do to stretch out and in the action of contracting fluid is sucked in this oil pocket 13 from this oil-in 11, the action by this oil pumping device 20 then with fluid outside this oil-out 12 is extruded this oil pocket 13, so move in circles, fluid flows the drag effect produced on this oil pumping device 20 in this oil pocket 13, with the purpose of the action part dynamics that reaches this body-building apparatus of control.
This body-building apparatus is an Exercycle in concrete enforcement, and Exercycle comprises pedal, and this pedal is connected on this main shaft 21 of this oil pumping device 20 by connecting rod.
This body-building apparatus also can be ellipsograph in concrete enforcement, ellipsograph comprises pedal and handle, and this pedal and this handle link together by trace and together be connected on this main shaft 21 of this oil pumping device 20.
Claims (5)
1. the application process of oil pump formula one-way damper on body-building apparatus is fixedly installed on oil pump formula damper on the body-building apparatus, provides this body-building apparatus to move needed resistance by this oil pump formula damper,
This oil pump formula damper generation resistance that in concrete work, forward moves, and do not produce resistance this oil pump formula damper reverse movement the time,
This oil pump formula damper comprises oil-in, oil-out, oil pocket and oil pumping device, wherein, this oil-in and this oil-out are separately positioned on this oil pocket, and this oil-in and this oil-out are connected with this oil pocket respectively, and this oil pumping device is arranged in this oil pocket, action by this oil pumping device sucks fluid in this oil pocket from this oil-in, the action by this oil pumping device then outside this oil-out is extruded this oil pocket, so moves in circles fluid
Fluid flows in this oil pocket in above-mentioned process, the limited drag effect that produces of the flow of this fluid is on this oil pumping device, that is to say that this oil pumping device has only overcome fluid mobile required this oil pumping device of the resistance that overcomes in this oil pocket and just can move
Fluid is provided with volume control device in the mobile formed oil circuit in this oil pocket, thereby reach the effect of the resistance size that this oil pump formula damper of control produced by the flow that this volume control device can be controlled fluid, this volume control device is from the flow of this fluid of single direction control
This oil-in place is provided with the adjusting valve block, this adjusting valve block is connected with adjusting rod, this adjusting valve block can be with respect to this oil-in turn to control the flow of the fluid that flows in this oil-in, can adjust position relation between this adjusting valve block and this oil-in to control the flow of the fluid that flows in this oil-in by controlling this adjusting rod, this oil pumping device comprises main shaft, and this main shaft is connected with the action part of this body-building apparatus.
2. the application process of oil pump formula one-way damper as claimed in claim 1 on body-building apparatus, it is characterized in that: this oil pump formula damper comprises cylinder body, top cover, bottom and belt pulley, wherein, this top cover and this bottom are to cover respectively to be located at up and down two ends of this cylinder body, and by this top cover, this bottom and this cylinder body are around forming this oil pocket, this oil-in and this oil-out are separately positioned on this bottom, this oil pumping device is arranged in this oil pocket, this belt pulley is connected an end of this main shaft of this oil pumping device
This oil pumping device also comprises internal gear and external gear, wherein, this external gear is arranged in this oil pocket, this external gear has interior tooth cavity, this internal gear is articulated in the interior tooth cavity of being somebody's turn to do of this external gear by this spindle eccentricity, and tooth cavity has some recessed teeth in this, and this internal gear has some double wedges, this internal gear is engaged in this interior tooth cavity, and the quantity of this recessed tooth of this interior tooth cavity is more than the quantity of this double wedge of this internal gear.
3. the application process of oil pump formula one-way damper as claimed in claim 1 on body-building apparatus, it is characterized in that: this oil pump formula damper is the leaf pump, this oil pump formula damper comprises cylinder body, top cover, bottom and belt pulley, wherein, this top cover and this bottom are to cover respectively to be located at up and down two ends of this cylinder body, and by this top cover, this bottom and this cylinder body are around forming this oil pocket, this oil-in and this oil-out are separately positioned on this bottom, this oil pumping device is arranged in this oil pocket, this belt pulley is connected an end of this main shaft of this oil pumping device
This oil pumping device comprises swivel becket and some blades, some these blades are plugged in around this swivel becket, this swivel becket is eccentrically set in this oil pocket, and this swivel becket is connected with this main shaft of this oil pumping device, and some these blades all form the relation that holds with the inner surface of this oil pocket respectively.
4. as the application process of any described oil pump formula one-way damper on body-building apparatus in the claim 1 to 3, it is characterized in that: this body-building apparatus is an Exercycle, Exercycle comprises pedal, and this pedal is connected on this main shaft of this oil pumping device by connecting rod.
5. as the application process of any described oil pump formula one-way damper on body-building apparatus in the claim 1 to 3, it is characterized in that: this body-building apparatus is an ellipsograph, ellipsograph comprises pedal and handle, and this pedal and this handle link together by trace and together be connected on this main shaft of this oil pumping device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100049419A CN102139146A (en) | 2011-01-10 | 2011-01-10 | Method for applying oil pump type unidirectional damper on fitness equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100049419A CN102139146A (en) | 2011-01-10 | 2011-01-10 | Method for applying oil pump type unidirectional damper on fitness equipment |
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| CN102139146A true CN102139146A (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011100049419A Pending CN102139146A (en) | 2011-01-10 | 2011-01-10 | Method for applying oil pump type unidirectional damper on fitness equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188010A (en) * | 2018-10-23 | 2019-01-11 | 珠海格力智能装备有限公司 | testing machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115127U (en) * | 1992-03-17 | 1992-09-09 | 沈阳市东吉童车制造厂 | Sofa-type multifunctional body-building appliance |
| CN2168612Y (en) * | 1993-04-20 | 1994-06-15 | 双龙兴实业厂股份有限公司 | Hydraulic damper |
| CN2231558Y (en) * | 1995-02-28 | 1996-07-24 | 麻晓晨 | Loader for body shaper |
| US20050014611A1 (en) * | 2001-08-09 | 2005-01-20 | Michael Gearon | Variable resistance device for an exercise machine |
-
2011
- 2011-01-10 CN CN2011100049419A patent/CN102139146A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115127U (en) * | 1992-03-17 | 1992-09-09 | 沈阳市东吉童车制造厂 | Sofa-type multifunctional body-building appliance |
| CN2168612Y (en) * | 1993-04-20 | 1994-06-15 | 双龙兴实业厂股份有限公司 | Hydraulic damper |
| CN2231558Y (en) * | 1995-02-28 | 1996-07-24 | 麻晓晨 | Loader for body shaper |
| US20050014611A1 (en) * | 2001-08-09 | 2005-01-20 | Michael Gearon | Variable resistance device for an exercise machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109188010A (en) * | 2018-10-23 | 2019-01-11 | 珠海格力智能装备有限公司 | testing machine |
| CN109188010B (en) * | 2018-10-23 | 2024-03-08 | 珠海格力智能装备有限公司 | Testing machine |
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Application publication date: 20110803 |