CN2224637Y - Strength varying tension spring - Google Patents
Strength varying tension spring Download PDFInfo
- Publication number
- CN2224637Y CN2224637Y CN 94247623 CN94247623U CN2224637Y CN 2224637 Y CN2224637 Y CN 2224637Y CN 94247623 CN94247623 CN 94247623 CN 94247623 U CN94247623 U CN 94247623U CN 2224637 Y CN2224637 Y CN 2224637Y
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- CN
- China
- Prior art keywords
- axle
- rope
- plane scroll
- clutch
- chest expander
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- Expired - Fee Related
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Abstract
The utility model provides a strength spirally varying whole range tension spring exerciser. As the device of the resisting source of a body builder, the strength spirally varying whole range tension spring exerciser solves the problems of the bulky structure of the body builder and the inconvenience in adjusting the size of the tension resulted from that pig iron weight blocks, spiral spring groups, etc. serve as the resisting source of an exiting multifunctional body builder. In the strength spirally varying whole range tension spring exerciser, four independent clutch mechanisms are used for controlling and adjusting four plane spirally reeled springs to carry out different combination. Two steel cables output sixteen spiral resistances which are respectively combined in the form of rectilinear motion; therefore, the aim of conveniently and quickly adjusting the size of the tension of a tension spring exerciser is realized. The utility model is mainly used for replacing the pig iron weight blocks, the spiral spring groups, the rubber rope belts, etc. of an existing body builder.
Description
The utility model relates to a kind of device that is used as sources of resistance in health and fitness facilities.
The physical training that people use health and fitness facilities to carry out is to be undertaken by drawing of various sources of resistance lifted.Generally adopt pig iron counterweight pouring weight to make sources of resistance in the health and fitness facilities in the past both at home and abroad.Now do in the work of sources of resistance at alternative pig iron counterweight pouring weight, two kinds of developing direction are arranged, a kind of is the mechanical elastic that utilizes elastomeric material, as helical spring group and rubber rope band etc.Another kind is to utilize liquid, the gentle pressure damper of hydraulic damper of the damping action that produces when gas is compressed.Chinese patent CN2061848U (see Patent Office of the People's Republic of China's " utility model " 90 years the 6th volume 37) has proposed a kind of omnidistance chest expander of body-building multipurpose that utilizes elastomeric material, its design feature is: the outer rim at an elastic force rotating disk is wound with pulling force rope, its operation principle is: make the rotation of elastic force rotating disk by the tractive pulling force rope, thereby obtain required pulling force.But this chest expander has a bigger defective, exactly in case after making, the size of its pulling force can not be regulated change.
The purpose of this utility model provides the omnidistance chest expander of a kind of improved spiral variable force, and it can regulate the size of pulling force quickly and easily
The purpose of this utility model is to be realized by following scheme:
This chest expander by the plane scroll spring group of clutch control and regulation and the steel wire rope that is used for exporting the spiral resistance form, it is characterized in that: on a base plate, fix an axle with two bearing blocks and two rolling bearings, symmetry is equipped with four runners and two rope-winding wheels on this axle, on these four runners and two rope-winding wheels, six independent clutches are housed respectively, coiled four plane scroll springs respectively in the periphery of four above-mentioned runners, the inner of these four plane scroll springs is separately fixed at the outer rim of each self-corresponding runner, the outer end is separately fixed on the above-mentioned base plate.One end of two steel wire ropes be separately fixed on the outer rim of two above-mentioned rope-winding wheels and around around the back other end draw outside the shell respectively.
The operation principle of this chest expander is: control to adjust four runners by adjusting clutch, just control to adjust four plane scroll springs and carry out 16 different combinations respectively.Then, select in two steel wire ropes arbitrary to export 16 above-mentioned spiral resistances that 16 that various combination was produced are differed in size respectively, thereby realize purpose that the size of this chest expander pulling force is regulated in straight-line mode.
The structure of six above-mentioned clutches is identical with operation principle, all is to adopt machinery to insert key formula clutch.Above-mentioned plane scroll spring group can be made up of three plane scroll springs, also can be by forming more than three plane scroll spring, and himself spiral resistance of each plane scroll spring is unequal mutually.The external diameter of two above-mentioned rope-winding wheels differs one times, and wherein the external diameter of that rope-winding wheel that external diameter is big is identical with the external diameter of four runners.Above-mentioned rope-winding wheel also can be not have clutch directly to use the rope-winding wheel of key connecting with axle.
Because the utility model is by adjusting the various combination that clutch controls to adjust four plane scroll springs, changing the size of this chest expander pulling force.Therefore the utility model is compared with existing chest expander as sources of resistance, and the size adjustment of its pulling force easily and fast.Again because this chest expander is not elastomeric material to be elongated obtain pulling force, but the spiral resistance that is produced by the rectilinear motion output plane volute spring group of steel wire rope, so this chest expander is fixed in use, this chest expander is applied in the multifunctional body-building apparatus, and greatly the existing multi-gym of tubeization is to the supporting structure of sources of resistance.
Below in conjunction with accompanying drawing,, be further described concrete structure of the present utility model.
Fig. 1 is a longitudinal profile front view of the present utility model.
Fig. 2, Fig. 3 are plane of structure profiles of the present utility model.
Fig. 4 is the partial enlarged drawing of the clutch (28) of runner in the utility model (9).
Fig. 5 is the left view of the utility model axis positioner (21).
The utility model is by plane scroll spring group, rotating device, steel wire rope, clutch, axle allocation mechanism, and base plate and shell composition.
＜one〉plane scroll spring group
Four plane scroll springs (7,10,16,19, referring to accompanying drawing 1, down together) directly are coiled into by spring steel band, and the number of turns of being coiled was shown for five weeks half in the accompanying drawing 1,2,3.Their outer end is separately fixed on the base plate (30) with screw, and their the inner is separately fixed on the outer rim of each self-corresponding runner.＜can be referring to 16 of Fig. 2, Fig. 3 10.When runner with axle (2) during along the direction dextrorotation shown in the arrow (1), plane scroll spring is by rolling-in, thereby produces the spiral resistance.
＜two〉rotating device and steel wire rope
Rotating device is by axle (2), and four runners (5,9,17,20) and two rope-winding wheels (11,14) are formed.Axle (2) is fixed on the base plate (30) through two bearing blocks (29,23) by two rolling bearings (8,18).The structure of two bearing blocks is identical, and 29 of Fig. 3 is right views of bearing block (29), and its top is bearing chamber, and lower support is partly separated a determining deviation, uses for the regulating wheel bar that clutch is installed.The main effect of axle is to transmit rotation and moment of torsion.
The external diameter of one or four runners (5,9,17,20) is identical with planform, and they are contained in the both sides of the bearing on the axle (2) respectively.On the outer rim of each runner, fixing the inner of four above-mentioned plane scroll springs respectively.One side of each runner is equipped with the bar key apparatus of clutch,＜can referring to Fig. 2 17.Each runner can relatively rotate with axle (2).The effect of runner has: the bar key apparatus of clutch is installed, and under the control of clutch, with together dextrorotation of axle (2), with the plane scroll spring rolling-in.
Two rope-winding wheels (11,14), be contained in the axle (2) the stage casing, they can relatively rotate with axle (2).The external diameter of rope-winding wheel (11) equates that with the external diameter of runner the external diameter of rope-winding wheel (14) equals half of rope-winding wheel (11) external diameter.One end of two steel wire ropes (12,15) be separately fixed at two rope-winding wheels (11,14) outer rim and around around the other end draw outside the shell (6).One side of two rope-winding wheels (11,14) is equipped with the bar key apparatus of clutch (27,25) respectively.The effect of rope-winding wheel is, the rectilinear motion of steel wire rope changed into rotatablely moving, and under the control of clutch, drives axle (2) together dextrorotation.The effect of two steel wire ropes is in straight-line mode, exports two kinds of spiral resistances that differ in size respectively.
Be contained in axle on (2) each runner and the axial location of rope-winding wheel, by six locating rings (as Fig. 13 shown in) fix.
＜three〉clutch
Structure, the function of six clutches (32,28,27,25,24,22) of this chest expander are identical, all are that machinery is inserted the key clutch.Clutch (28) with the runner (9) shown in the accompanying drawing 4 is an example below, and the 26S Proteasome Structure and Function characteristics of the slotting key clutch of machinery are described:
Clutch (28) is made up of bar key apparatus and adjusting device two parts.The bar key apparatus is contained in a side of runner (9), and fixedly orifice plate (38) and little cross bar (39) are formed by bar key (36), holddown spring (37) for it.Bar key (36) is by the steel plate punch forming, and its top is one wide section, and the bottom is a narrow bar, holddown spring (37) and after fixedly orifice plate (38) is contained on the narrow bar, and little cross bar (39) is riveted on the lower end of narrow bar.The bar key apparatus is contained in the groove that runner (9) one sides leave by fixing orifice plate (38), it can together rotate with runner (9) (its position can referring to Fig. 2 24).
Adjusting device by regulating wheel bar (41), torsion spring (42), dnockout core backguy (40) and adjusting turn round (do not draw among Fig. 4, its position can referring to Fig. 3 34) form.One end of regulating wheel bar (41), be hinged in bearing block (29) spacing that the bottom separated (can referring to Fig. 3 32 shown in the position), the other end can rotate around hinged end for the wheel end.The effect of torsion spring (42) is to make the wheel end of regulating wheel bar (41) remain the trend that rotates up.One end of dnockout core backguy (40) is fixed on the middle part of regulating wheel bar (41), the other end be connected on regulate turn round (do not draw among Fig. 4, can referring to Fig. 3 33 shown in) on.Regulate when turning round when being wrenched, dnockout core backguy (40) spurs regulating wheel bar (41) downwards, makes it take turns end and rotates.
Below in conjunction with accompanying drawing 4 dynamic structure of clutch (28) once is described: the runner shown in the accompanying drawing 4 (9) is to be in the state that separates with axle (2).Turn round handle when pulling the pine adjusting, dnockout core backguy (40) is upwards loosened, regulating wheel bar (41) is under the effect of its torsion spring (42), it is taken turns end and upwards rotates, at this moment bar key (36) moves up under the effect of its holddown spring (37), and the top on wide section of its top is inserted in the upward corresponding keyway (35) of axle (2), like this, runner (9) just engages with axle (2).Be wrenched conversely to regulate and turn round handle, make dnockout core backguy (40) spur regulating wheel bar (41) downwards, the wheel end of regulating wheel bar (41) is being pressed little cross bar (39) to drive bar key (36) and is being moved down, make and shift out in the keyway (35) on the Xiang Duancong axle (2) on wide section of bar key (36) top, runner (9) is separated with axle (2).
In addition, clutch (27,25) shared adjusting devices (26) of rope-winding wheel (11,14) (referring to Fig. 1 26).Its action feature is: regulate when turning round when being wrenched, clutch (27) action makes rope-winding wheel (11) separate with axle (2), and simultaneously, clutch (25) moves, and rope-winding wheel (14) is engaged with spool (2).Pull pine conversely and regulate when turning round, clutch (27) action makes rope-winding wheel (11) engage with axle (2), and clutch (25) moves simultaneously, and rope-winding wheel (14) is separated with spool (2).
The effect of clutch is exactly to control to adjust the joint of each runner or rope-winding wheel and axle (2) or separate, thereby controls to adjust the various combination of four plane scroll springs and select one in two steel wire ropes to export the spiral resistance.
＜four〉axle allocation mechanism
Axle allocation mechanism is a subsidiary body of this chest expander, is to be used for fixing axle (2) when static, and just axle (2) is not by the circumferential position before the rope-winding wheel driven rotary, so that each clutch can regular event.It is made up of axle plane of orientation volute spring (4) and axle positioner (21).Axle plane of orientation volute spring (4) is contained in axle (2) left end, and its inner is screwed on axle (2), and the outer end is fixed by bolts on the bearing (31), and bearing (31) is screwed on base plate (30).The effect of axle plane of orientation volute spring (4) is to make axle (2) remain left-handed trend.
Axle positioner (21) is contained in the right-hand member of axle (2), and accompanying drawing 5 is its left views, and it is made up of this three part of shift fork (44) that is fixed on the thumb wheel bar (43) of axle on (2), is fixed on the bearing (45) on the base plate (30) and is hinged on bearing (45) top.The effect of axle positioner is the circumferential position of fixed axis (2) when static.The effect of axle positioner is realized by following process: axle (2) makes thumb wheel bar (43) also have left-handed trend because the effect of axle plane of orientation volute spring (4) makes it maintain left-handed trend when static.The left-handed trend of thumb wheel bar (43) is blocked by the moving tooth of shift fork (44), make shift fork (44) have the trend of dextrorotation, and the dextrorotation trend of shift fork (44) is blocked by bearing (45).Like this, the circumferential position of axle (2) just is fixed.When axle (2) was driven dextrorotation by rope-winding wheel, in axle (2) every one week of dextrorotation, shift fork (44) was stirred a left-handed tooth by thumb wheel bar (43).Shift fork (44) has five teeth, can make around axle (2) dextrorotation.When home position that axle (2) circles round static left, shift fork (44) is dialled the origin-location of getting back to as shown in Figure 5, and like this, the circumferential position of axle (2) is fixed again.
In addition, because axle plane of orientation volute spring (4) has certain spiral resistance, when axle (2) driven dextrorotation by rope-winding wheel and four plane scroll springs because the control of clutch during not by rolling-in, axle plane of orientation volute spring (4) is produced certain spiral resistance by rolling-in, thereby on institute's tractive steel wire rope, obtain a corresponding pulling force
＜five〉base plate and shell
Base plate (30) is a rectangular steel plates, and it is used for fixing each bearing of this chest expander, the outer end of each plane scroll spring.Shell (6) is made by book steel plate or plastic plate, and it does not stress when using, and mainly plays this chest expander of sealing, and it is fixed on the base plate (30) with screw.This sample chest expander becomes as a whole, can fix this chest expander easily by base plate (30).
Using method of the present utility model is exemplified below:
This chest expander mainly designs as sources of resistance on one's body for being applied in multifunction key.The grasping member that the trainer also can provide by this chest expander (Fig. 1 13 shown in) is directly trained.The application of this chest expander on multi-gym (not drawing among the figure) is this chest expander to be fixed on appropriate location on the multi-gym, to be connected with the functional unit of multi-gym by arbitrary in two steel wire ropes (12,15) and to realize by base plate (30).
The spiral resistance of the plane scroll spring of this chest expander (7) is that the spiral resistance of 10kg, plane scroll spring (10) is that the spiral resistance of 80kg, plane scroll spring (16) is 40kg, and the spiral resistance of plane scroll spring (19) is that the spiral resistance of 20kg, axle plane of orientation volute spring is 5kg.
If the trainer selects the pulling force of 110kg to train, the course of action of this chest expander in current training is as follows:
Select steel wire rope (15) to be connected with the functional unit of multifunction key body device.The adjusting device (26) of at first adjusting clutch (27,25) makes rope-winding wheel (14) engage with axle (2), and rope-winding wheel (11) separates with axle (2); Adjusting clutch (32) makes runner (5) engage with axle (2); Adjusting clutch (28) makes runner (9) separate with axle (2); Adjusting clutch (24) makes runner (17) engage with axle (2); Adjusting clutch (22) makes runner (20) separate (referring to the residing state of each clutch, runner, rope-winding wheel shown in Figure 1) with axle (2).Then, when steel wire rope (15) is made progress tractive, rope-winding wheel (14) is pressed the direction dextrorotation shown in the arrow (1), at this moment axle (2) is driven dextrorotation, simultaneously, runner (5) and runner (17) are driven common dextrorotation by axle (2), make axle plane of orientation volute spring (4), plane scroll spring (7) and plane scroll spring (16) simultaneously by rolling-in, produce the spiral resistance of 55kg.Because the external diameter of rope-winding wheel (14) is the runner external diameter half, the trainer has just obtained the pulling force of 110kg on the steel wire rope (15) of institute's tractive like this.
Remaining 15 pulling force by said process and different adjustment to each clutch, can obtain equally.
Claims (5)
1. omnidistance chest expander of spiral variable force that is applied on the multi-functional bar body device, by the plane scroll spring group of clutch control and regulation and the steel wire rope that is used for exporting the spiral resistance form, it is characterized in that: at a base plate (30, see Fig. 1, down together), with two bearing blocks (29,23) and two rolling bearings (8,18) fix an axle (2), go up symmetry at this axle (2) four runners (5 are housed, 9,17,20) and two rope-winding wheels (11,14), on these four runners and two rope-winding wheels six independent clutches (32 are housed respectively, 28,24,22,27,25), periphery at four above-mentioned runners, coiling has four plane scroll springs (7 respectively, 10,16,19), the inner of these four plane scroll springs is separately fixed on the outer rim of each self-corresponding above-mentioned four runner, the outer end is separately fixed on the above-mentioned base plate (30), two steel wire ropes (12,15) a end is separately fixed at two above-mentioned rope-winding wheels (11,14) on the outer rim and around around the back other end draw respectively outside the shell (6)
2. chest expander according to claim 1 is characterized in that: its quantity of described plane scroll spring is more than or equal to three.
3. according to claim 1,2 described chest expanders, it is characterized in that: described plane scroll spring is the mutual unequal plane scroll spring of the spiral resistance of himself.
4. chest expander according to claim 1 is characterized in that: described clutch is that machinery is inserted key formula clutch.
5. want right 1 described chest expander according to right, it is characterized in that: described steel wire rope can be one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94247623 CN2224637Y (en) | 1994-12-09 | 1994-12-09 | Strength varying tension spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94247623 CN2224637Y (en) | 1994-12-09 | 1994-12-09 | Strength varying tension spring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224637Y true CN2224637Y (en) | 1996-04-17 |
Family
ID=33852804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94247623 Expired - Fee Related CN2224637Y (en) | 1994-12-09 | 1994-12-09 | Strength varying tension spring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224637Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621290A (en) * | 2019-01-23 | 2019-04-16 | 新乡医学院 | A kind of basketball physical training system |
| CN114939257A (en) * | 2022-06-09 | 2022-08-26 | 江先明 | Portable stay cord exerciser with adjustable |
| WO2023015401A1 (en) * | 2021-08-12 | 2023-02-16 | 李思萍 | Constant torsion force generator and real-time constant-force chest expander |
-
1994
- 1994-12-09 CN CN 94247623 patent/CN2224637Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621290A (en) * | 2019-01-23 | 2019-04-16 | 新乡医学院 | A kind of basketball physical training system |
| WO2023015401A1 (en) * | 2021-08-12 | 2023-02-16 | 李思萍 | Constant torsion force generator and real-time constant-force chest expander |
| CN114939257A (en) * | 2022-06-09 | 2022-08-26 | 江先明 | Portable stay cord exerciser with adjustable |
| CN114939257B (en) * | 2022-06-09 | 2024-04-16 | 江先明 | Adjustable portable stay cord exerciser |
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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 |