CN101015732A - Foot Reciprocating Exercise Equipment - Google Patents
Foot Reciprocating Exercise Equipment Download PDFInfo
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- CN101015732A CN101015732A CN 200610002875 CN200610002875A CN101015732A CN 101015732 A CN101015732 A CN 101015732A CN 200610002875 CN200610002875 CN 200610002875 CN 200610002875 A CN200610002875 A CN 200610002875A CN 101015732 A CN101015732 A CN 101015732A
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Abstract
The invention relates to a foot reciprocating exercise device, which mainly comprises a frame body; at least one guide rail arranged on the frame body at a selected angle and respectively provided with a front end and a rear end; a left pedal and a right pedal which are arranged on the guide rail and can move between the front end and the rear end along the guide rail; each pedal is provided with a supporting surface for a user to step on; a winding mechanism movably arranged on the frame body and provided with two winding joints which can circularly move on a closed track, wherein the two winding joints are kept at two opposite sides and are mutually linked; a flywheel, which is pivoted on the frame body and connected with the rewinding mechanism and can be linked with the two rewinding connection points; two connecting rod assemblies, each connecting one of the winding joints and one of the pedals, so that the two pedals can be mutually linked with the two winding joints in opposite directions. Therefore, the user can utilize the invention to carry out stable and smooth foot reciprocating motion, and can be matched with the left and right holding rods which are mutually linked with the left and right pedals to carry out up-and-down coordinated whole body motion.
Description
Technical field
The present invention relates to a kind of sports equipment, be meant a kind of reciprocating sports equipment of foot that is available for users to carry out especially.
Background technology
General common shank (lower part of the body) sports equipment has treadmill, exercise bicycle, elliptical machine, sliding steps machine, treadmills, spacewalk machine ... or the like.Except treadmill, above-mentioned various sports equipment all is to utilize mobilizable pedal guiding user's both feet to move on desired trajectory, make its shank (or lower part of the body) make repeatedly predetermined action, for example, the pedal of bicycle is that the guiding both feet are in a circular trace cocycle campaign, elliptical machine is as the term suggests be the track cocycle campaigns of guiding both feet at an ellipse or approximate ellipsoidal, general so-called sliding steps machine, treadmills, the spacewalk machine, track is respectively a horizontal linear by and large, center of circle circular arc and center of circle circular arc up forwardly, and all be that the guiding both feet move back and forth on aforementioned track.Certainly, other also have the complicated a little leg sports equipment of many footplate locus, do not enumerate one by one at this.
Reciprocating motion facility for foot of the present invention belongs to a kind of guiding both feet reciprocating sports equipment on desired trajectory, roughly between sliding steps machine and treadmills, it is No. 3970302, No. 4496147, No. 5007631, No. 5180351, No. 5186697, No. 5195935 patent that relevant prior art has U.S. Patent number to motion morphology.The sports equipment that above-mentioned each patent disclosed all has and can be available for users to carry out the similar leg of alternately lifting of climbing the mountain, step on rank and move along left and right two pedals of slippage before and after the inclined guide rails.
Wherein, U.S. Patent number is No. 3970302, No. 5007631, No. 5180351 and No. 5195935 patent, all be to utilize length fixing rope yarn or chain to connect left and right two pedals, (the pedal preset distance that backward descends wherein so that the counter motion equally of aforementioned two pedals, promptly force another pedal same distance that rises forward), however the situation that rope yarn, chain rupture easily.No. the 4496147th, the above-mentioned U.S. and follow-up many patents are that two oil hydraulic cylinders that utilize to be communicated with make left and right two pedal counter motions, but because of the factors such as compressibility of fluid, its synchronization action is uncertain.No. 5186697 patent of the above-mentioned U.S. then is to utilize relative two crank arms to keep the counter motion of left and right two pedals, though structure is comparatively firm, but, make sport efficiency and equipment volume form double-barreled question because of the movement travel of pedal directly is subject to the length of crank arm.In addition, when the user utilizes aforementioned invention to go upstairs (upward stepping) motion, because crank arm relies on pedal fully via the connecting rod driven rotary, therefore two " dead point (dead-centre) " retardance, speed changes when causing the pedal slippage easily in the stroke make foot move back and forth can't stablize swimmingly and carry out.
Aspect the resistance of motion, above-mentioned patent has also disclosed the multiple mechanical structure that is used to provide additional friction, for example buffer (shock absorber), extension spring, friction belt or friction garter spring etc.The shortcoming of above-mentioned various drag devices is that the user can't adjust the resistance size easily in motion process.
On the other hand, the sports equipment that above-mentioned each patent provided all is conceived to lower part of the body motion, and in use, user's both hands are not to have no to rely on, and can only catch exactly to be held on the fixed handrail, can't cooperative motion.Though No. 5007631 patent of the above-mentioned U.S. is provided with two movable handles, can be respectively and pedal synchronization lifting on same rail of same side, no matter be the mode that hand motion or trick are cooperated, this kind motion kenel is nature.
A kind of leg sports equipment that other has early stage disclosed No. 2004/0224825 patent application case of a U.S. to disclose, the similar spacewalk machine of its motion morphology, the center of circle of track is the back upper place that is positioned at arc track relatively but pedal swings, just user's foot up moves to a peak by a minimum point forward along arc track, down move to minimum point by peak along former track more backward, can move for the leg of lifting that carries out repeatedly so equally.A wherein embodiment of aforementioned patent applications case be provided with can before and after two handles of beat, and left and right two handles and left and right two pedals are of coupled connections, and can allow user's the upper part of the body move with the lower part of the body thus.Yet, its interlinked mechanism make the handle of same side and pedal can be simultaneously forward or backward, just the user must carry out all-around exercises in the mode of " with the same pin of hand ".
Summary of the invention
At the problems referred to above, main purpose of the present invention is to provide a kind of reciprocating motion facility for foot, it can carry out the reciprocal reciprocal leg exercise of both feet for the user, and has an interlinked mechanism of safety and firmness, simultaneously can also provide a motional inertia, user's leg exercise can be stablized swimmingly carry out.
Another object of the present invention is to provide a kind of reciprocating motion facility for foot, it can carry out the reciprocal reciprocal leg exercise of both feet for the user, its movement travel that is used to support the pedal of user foot has enough length, can allow leg exercise that higher sport efficiency is arranged.
A further object of the present invention is to provide a kind of reciprocating motion facility for foot, and it can carry out the reciprocal reciprocal leg exercise of both feet for the user, and can allow the user when carrying out leg exercise, optionally carries out the upper part of the body motion of coordinating with the lower part of the body.
Another purpose of the present invention is to provide a kind of reciprocating motion facility for foot, and it can carry out the reciprocal reciprocal leg exercise of both feet for the user, and can allow the user adjust the resistance of motion easily in motion process.
For achieving the above object, a kind of reciprocating motion facility for foot provided by the present invention consists predominantly of: a support body; At least one guide rail is arranged on the described support body with a selected angle, respectively has a front end and a rear end; One left-hand tread plate and a right-hand tread plate are located on the described guide rail, can be along the displacement between described forward and backward two ends of described guide rail; Each described pedal has one and supplies the user to step on the supporting surface at station; It is characterized in that: a rewind mechanism, be located at movably on the described support body, having can be at two of the sealing track cocycle campaign contact that unrolls, and described two contacts that unroll remain on relative two sides and mutual interlock; One flywheel is hubbed on the described support body and with described rewind mechanism and is connected, can with the described two mutual interlocks of contact that unroll; Two link assemblies, each connects wherein a described contact and the described pedal wherein of unrolling, make described two pedals can be each other oppositely with the described two mutual interlocks of contact that unroll.
In the technical scheme of the invention described above, described guide rail extends straight, and its front end is higher than the rear end, and the relative angle of the supporting surface of each described pedal and the major axis of described guide rail remains unchanged.
In the above technical scheme of the present invention, each described link assembly has a swing arm, an auxiliary and a trace, a wherein end of each described swing arm is articulated on the described support body, the other end can swing front and back, a wherein end of each described auxiliary is articulated in the end that swings of corresponding described swing arm, the other end connects corresponding described pedal, and a wherein end of each described trace is articulated in the corresponding described contact that unrolls, and the other end is articulated in corresponding described swing arm.
In the above technical scheme of the present invention, also include a hand motion, it has left and right two beat bars and left and right two reciprocal connecting rods, each described beat bar is longitudinal extension, predetermined position between Qi Ding, the ends two end is hubbed at described support body, and the top forms one and supplies the user to catch the handle of holding, and a wherein end of each described reciprocal connecting rod is articulated in corresponding described beat bar bottom, and the other end is articulated in corresponding described swing arm.
In the above technical scheme of the present invention, also include a hand motion, it has left and right two handles that are arranged at described support body versatilely, and described two handles and described two pedals are of coupled connections, mutually interlock.
In the above technical scheme of the present invention, described rewind mechanism has a crank axle and two crank arms, but described crank axle original place is hubbed at described support body rotatably, and described two crank arm symmetries are connected in described crank axle, and the outer end of each described crank arm forms a described contact that unrolls.
In the above technical scheme of the present invention, described crank axle is provided with the mechanism of driving up between the described flywheel, makes the rotating speed of described flywheel be higher than described crank axle.
In the above technical scheme of the present invention, also include a drag devices, the resistance when providing described two to unroll joint movement.
In the above technical scheme of the present invention, described drag devices is one to cooperate the eddy-current brake of described flywheel, has the magnetic force assembly that can adjust with the relative position of described flywheel, controls the unroll resistance of motion of contact of described flywheel and described two.
In the above technical scheme of the present invention, be provided with an angular adjustment apparatus between described guide rail and the described support body, optionally change the angle of described guide rail with respect to described support body.
Adopt technique scheme, the present invention is than the rope of commonly using, chain transmission mode, it is firm to have structure, the get loose advantage of fracture situation of part be difficult for to take place, and can obtain motional inertia during the pedal slippage from flywheel, the user can be stablized carry out the reciprocal reciprocal leg exercise of both feet swimmingly.Each link assembly of the present invention has a swing arm, an auxiliary and a trace, and each swing arm can be articulated on the support body with swinging, and each auxiliary is connected swinging between end and the pedal of swing arm, and each trace is connected and unrolls between contact and the swing arm.Because the position that pedal is connected in the swing arm is connected to position in the swing arm further from the center of circle that swings of swing arm than the contact that unrolls, so, the movement travel energy appropriateness of pedal is greater than the diameter of the movement locus of the contact that unrolls, and the present invention can provide enough pedal travels under suitable volume thus.The present invention also comprises a hand motion, and it has left and right two handles that are arranged on movably on the support body, and two handles and two pedals are of coupled connections, feasible interlock mutually.Left and right two beat bars are set to generally be the form of longitudinal extension, predetermined position between each beat masthead, the ends two end is articulated on the support body, the top is provided with handle and catches and hold for the user, the bottom is connected to a pedal (or being connected to swing arm) by a reciprocal connecting rod, can make the handle and the pedal counter motion of same side, preferable all-around exercises kenel is provided.The present invention also can allow the user control a drag devices by console in automatically controlled mode, to adjust two resistances of motion of unrolling contact.Drag devices can be the eddy-current brake of commonly using (ECB), and it has the magnetic force assembly that can adjust with the relative position of flywheel, can control the resistance of motion of the flywheel and the contact that unrolls with this.In addition, also be provided with an angular adjustment apparatus between guide rail and the support body, the user also can automatically controlled mode control angular adjustment apparatus, to change the guide rail angle, the motion difficulty is improved or reduction.
Description of drawings
Fig. 1 is the stereogram of a preferred embodiment of the present invention;
Fig. 2 is the left side view (for convenience observe, in figure remove support body part) of a preferred embodiment of the present invention corresponding to Fig. 1 state;
Fig. 3 is the vertical view of a preferred embodiment of the present invention corresponding to Fig. 1 state;
Fig. 4 is the front view of a preferred embodiment of the present invention corresponding to Fig. 1 state;
Fig. 5 is the cutaway view along the V-V hatching line among Fig. 3;
Fig. 6 is the cutaway view along the VI-VI hatching line among Fig. 5;
The similar Fig. 2 of Fig. 7, but pedal and handle are moved to diverse location, show the motion state of a preferred embodiment of the present invention;
The similar Fig. 2 of Fig. 8, but guide rail wherein is positioned at different gradients by angular adjustment apparatus.
The specific embodiment
In order to describe structure of the present invention and effect in detail, be described as follows according to preferred embodiment of the present invention and conjunction with figs. below:
As Fig. 1～shown in Figure 4 (annotate: the indication of directions such as " preceding " in this specification, " back ", " left side ", " right side " all is corresponding to the direction cognition of user under user mode, left side view in the description of drawings, vertical view and front view then are the signs on the cartography, left side view wherein is corresponding to user's left side, and front view is corresponding to user's the back side.), the reciprocating motion facility for foot that a preferred embodiment of the present invention provided consists predominantly of: be placed on a ground support body 10, be located at latter half of left and right two guide rails 20 of support body, be located at the left and right two pedal groups 30 on the guide rail, a rewind mechanism 40 that is located at the support body front end, a flywheel 52 that is connected with rewind mechanism, connect left and right two link assemblies 60 and a hand motion 70 of rewind mechanism and two pedals.
Each guide rail 20 is linearly extended microscler rail bars, and two guide rails 20 are arranged on the latter half of of support body 10 abreast with the form on the first from left right side, between left and right two bogie side frames 14.Each guide rail 20 has a rear end near ground, and a front end apart from the ground predetermined altitude, and in other words, the major axis of guide rail 20 presents a pre-fixed angle of altitude with respect to ground.In the present embodiment, the elevation angle of guide rail 20 (guide rail 20 is with respect to the angular relationship of support body 10 in other words) can optionally be adjusted, and this part is waited until the back and further specified.
Two pedal groups 30 are separately positioned on two guide rails 20, as Fig. 5, shown in Figure 6, each pedal group 30 is roughly by roller bearing 32 on the slide 31, two, once roller bearing 33 and a pedal 34 combine, slide 31 is formed by metal sheet bending, has a mainboard 35 and by vertically extending two side plates 36 of the parallel dual side-edge of mainboard, slide 31 is striden and is enclosed within on the guide rail 20, makes mainboard 35 be positioned at guide rail 20 tops, and two side plates 36 lay respectively at guide rail 20 left and right dual side-edges.Roller bearing 32,33 all with Y-axis to being hubbed between two side plates 36, wherein, roller bearing 32 is positioned at guide rail 20 tops in tandem on two, 33 of following roller bearings are positioned at guide rail 20 belows, two ends respectively have the bigger cone shape roller 37,38 in an outer end about each roller bearing 32,33, touch the position, corner that coincide in the shape of guide rail 20 respectively, make slide 31 can stablize swimmingly major axis slippage thus along guide rail 20.Each pedal group 30 is fixed in slide 31 tops for the pedal 34 that the user steps on the station, its end face (supporting surface) is kept fixed angle with the major axis of guide rail 20, in other words, when guide rail 20 was fixed on a selected angle with respect to ground, pedal 34 was to rise forward or decline backward along guide rail 20 in the isogonal mode of supporting surface.
Flywheel 52 also with Y-axis on the fore-stock 13 that is hubbed on support body 10, be positioned at rewind mechanism 40 belows.The coaxial affixed small belt pulley 54 of a wherein side of flywheel 52, small belt pulley 54 is positioned under the big belt pulley 43, a sheathed driving belt 56 between the two makes flywheel 52 and crank axle 41 driven rotary mutually thus, and, because the diameter gap of large and small belt pulley 43,54, at crank axle 41 to forming the mechanism of driving up between the flywheel 52, that is, and when interlock mutually, the rotating speed of flywheel 52 can be higher than crank axle 41, makes the torsion of crank axle 41 greater than flywheel 52.Except belt, the present invention also can utilize the gear train (not shown) as driving up mechanism.
Two link assemblies 60 lay respectively at left and right two sides, connect the crank arm 42 of pedal group 30 with the rewind mechanism 40 of respective side separately.In the present embodiment, each link assembly 60 comprises a swing arm 61, an auxiliary 62 and a trace 63.Wherein, swing arm 61 a wherein end (top) is articulated on the bogie side frame 14 of support body 10, makes the other end (bottom) to swing before and after an arc track in guide rail 20 outsides.A wherein end (front end) of auxiliary 62 is articulated in the inboard, bottom of swing arm 61, and the other end (rear end) is articulated in the precalculated position on the side plate 36 in pedal group 30 outsides.A wherein end (front end) of trace 63 is articulated in the outside, crank arm 42 outer ends (contact 44 promptly unrolls) of rewind mechanism 40, and the other end (rear end) is articulated in the inboard of swing arm 61 centre portions.More than the axis of each pin-jointed structure all are Y-axises to.
Because the stroke that once rotates of crank arm 42 can involve with the stroke that once swings of swing arm 61 and cooperate, and the stroke that once swings of swing arm 61 involves with a reciprocating stroke of pedal group 30 and cooperates, make pedal group 30 can and rewind mechanism 40 mutual interlocks.Since two unroll contact 44 be keep 180 the degree rotate in a circular trace cocycle relatively, direction of rotation is uncommitted, so left and right two pedal groups 30 can present the reverse displacement of equivalent, promptly, a pedal group 30 preset distance that backward descends wherein just forces another pedal group 30 same distance that rises forward, and, when turn back in the rear that a pedal group 30 wherein is positioned at movement locus, turn back a little in the place ahead that another pedal group 30 just is positioned at movement locus.
By above structure, the all-around exercises that the user can utilize reciprocating motion facility for foot provided by the present invention to coordinate up and down.During use, the user steps down in a left side with both feet, on right two pedals 34, and with the hands hold a left side, right two handles 73, when both feet and the both hands application of force make pedal 34 and handle 73 separately when movement locus moves, by rewind mechanism 40, the binding of link assembly 60 and hand exercise mechanism 70 drives, as previously mentioned, a left side, the oppositely back and forth slippage of front and back on inclined trajectory each other of right two pedals 34, a left side, right two handles 73 also can be each other oppositely on arching trajectory before and after shift reciprocately, and, the handle 73 and the pedal 34 of same side also can present counter motion, as Fig. 2 and shown in Figure 7.
Part at the lower part of the body, the user is as carrying out a kind of motion between sliding steps machine and treadmills, promptly both feet force each other oppositely on a straight path of steeving forward mutually toward polyslip, alternately lift the leg motion with what rank and so on were climbed the mountain, gone up on the stage to this analogy.In part above the waist, user's both hands can with double-legged cooperative motion, not only expands the body kinematics position, improves the all-around exercises amount, and its motion kenel meets, and human body is walked, the balance play when running, comfortable comparatively naturally.Certainly, the present invention also can for example on vertical rod 12 or left and right two bogie side frames 14, be provided with fixed handrail (not shown) in the appropriate location of support body 10, the user can be selected both hands are caught be held on the handrail, only carries out lower part of the body motion.
What deserves to be mentioned is, the pedal of sports equipments such as general treadmills or elliptical machine, the angle of its supporting surface can be forced to along with movement travel circulation change, makes that user's ankle joint must be corresponding movable, if it is bad that angle changes setting, may cause burden and injury to ankle.But in the above embodiment of the present invention, pedal 34 is kept certain angle all the time in slipping, makes that the burden of ankle is lighter.Certainly, the present invention and non-limiting pedal are immutable with respect to the angle of guide rail, for example, but can flexible member be set in the pedal rear end bottom its elasticity is drifted along, or pedal can be driven deflection by link assembly, and making has different angles at diverse location.
Haveing the knack of this skill person will be appreciated that, aforementioned link assembly and hand exercise mechanism can also adopt other structures to reach similar effect, for example, each side is used a trace instead and directly is attached at the (not shown) between contact and the pedal group that unrolls, and can make left and right two crank arms and the mutual interlock of left and right two pedal groups equally.Yet, adopt the connected mode of above-mentioned swing arm 61, auxiliary 62 and trace 63, can be under the identical angle that swings by swing arm 61, receiving from its center of circle has the more effect of long arc more at a distance, makes that the movement travel of pedal group 30 can appropriate diameter greater than contact 44 circular traces of unrolling.In other words, the present invention need not dispose very long crank arm, and enough pedal travels can be provided.Similarly, if the reciprocal connecting rod in the hand exercise mechanism directly is attached at (not shown) between beat bar bottom and the pedal group, though also can reach the effect of handle and the reverse interlock of pedal, but for the foregoing description, reciprocal connecting rod 72 rear ends are pivoted to the centre portion of swing arm 61, with being intended to the beat amplitude of handle 73 is set in more suitable scope.
Flywheel 52 is made of metal appropriate size, has weight to a certain degree, so the user must impose enough strength and drives flywheel 52 rotation.Simultaneously, flywheel 52 can produce the predetermined power of being used to when rotated, this is used to power can be amplified to rewind mechanism 40 by driving belt 56, conduct to pedal 34 and handle 73 by link assembly 60 and hand exercise mechanism 70 again, make the reciprocating motion of pedal 34 and handle 73 can obtain a motional inertia, when motion, comparatively stablize smooth and easy.
Sports equipment of the present invention also can be provided for providing the drag devices of additional friction, for example, a known " vortex flow brake eddy-current brake is set on flywheel 52 next doors; ECB " (not shown); just as the frequent mode that adopts of known sports equipment; the vortex flow brake has a mobilizable magnetic force assembly; the user can control the position relation of magnetic force assembly with respect to flywheel 52 in automatically controlled mode by console 80; adjust the rotational resistance of flywheel 52 with this; promptly change the resistance of motion of pedal 34 and handle 73 indirectly, reach the purpose of setting motion difficulty.(annotate: the basic structure of aforementioned eddy-current brake and principle are prior art, do not explain herein.)
In the above-described embodiments, guide rail 20 is that the mode with adjustable angle is located on the support body 10, connecting rod 21 and the back connecting rod 22 mutual fixed parastates of keeping before left and right two guide rails 20 utilize one, and connecting rod 22 to base 11 rearmost ends that are articulated in support body 10, makes that left and right two guide rails 20 can be that deflection is carried out in the axle center with its rear end 21 synchronously with Y-axis after inciting somebody to action.Simultaneously, be provided with an angular adjustment apparatus 90 between the support body base 11 of guide rail 20 front ends and its below, adjusting device 90 is made of a groups of motors 91, a screw rod 92 and a screwed pipe 93, wherein, groups of motors 91 comprises the motor seat that is hubbed on the support body base 11 again, is located at a motor and a gear-box on the motor seat.Screw rod 92 and screwed pipe 93 coaxial one " expansion links " that screw togather into, wherein an end (being screw rod 92 in the present embodiment) is accepted the gear-box force-output shaft of groups of motors 91, and the other end (being screwed pipe 93 in the present embodiment) is articulated in the preceding connecting rod 21 that links left and right two guide rails, 20 front ends.The motor operation state of console 90 controllable motor groups 91, when motor rotates with certain rotation direction by gear-box drive screw 92, because screwed pipe 93 can't be according to self axis rotation, so screw rod 92 can be relative to (i.e. " expansion link " elongation) with screwed pipe 93, thereby can be with the up ejection of guide rail 20 front ends.Otherwise when motor-driven screw 92 was rotated with another rotation direction, screw rod 92 can be relative to (promptly " expansion link " shortens) with screwed pipe 93, thereby can be with guide rail 20 front end pulled down.When motor shut down, screw rod 92 and screwed pipe 93 relative fixings made guide rail 20 firmly be positioned at that time angle.
Based on predefined " expansion link " stroke range, guide rail 20 can deflection between as shown in Figure 2 first angle (elevation angle maximum) and second angle as shown in Figure 8 (elevation angle minimum).On the implementation, the gradient of guide rail 20 can be designed to and can adjust in the variable range section of nothing, or only can be positioned at some special angles therebetween.The user can comply with individual situation, sets the gradient of guide rail 20 by console 80.Significantly, under the identical prerequisite of resistance, when guide rail 20 elevations angle more hour, leg exercise promptly more easily, otherwise, heal when big when guide rail 20 elevations angle, leg exercise is promptly more painstaking.Certainly, function as the sports equipment of popularizing now, the user not only can adjust the gradient of guide rail 20 immediately in motion process, but also chosen in advance formula, allow machine in motion process, automatically change the gradient of guide rail 20 according to default sequential, for example raise gradually, just replace ... or the like, the variability and the interest of energy like this lifter motion.And the function of adjustment guide rail 20 gradients can and be deposited with the function of adjusting flywheel 52 rotational resistances and be cooperated, and provides more rich and varied motor program to select for the user.
What must remark additionally at last is; the above and structure of the present invention shown in the drawings or occupation mode; particularly parts such as guide rail, rewind mechanism and hand exercise mechanism only are one of preferable enforcement kenels of the present invention, are not in order to limit scope of patent protection of the present invention.For example, in other embodiments of the invention, guide rail may be that the guiding pedal seesaws along an arching trajectory, and guide rail do not limit front end and be higher than the rear end, just may be configured to the lower form of approximate horizontal even front end.In addition, though relative two cranks are to realize the simplest mode of rewind mechanism, the present invention does not get rid of yet and utilizes other mechanisms that the contact that unrolls that can move on the sealing track of circular, oval or other analogous shapes is provided.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100028750A CN100546682C (en) | 2006-02-09 | 2006-02-09 | Foot reciprocating motion equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100028750A CN100546682C (en) | 2006-02-09 | 2006-02-09 | Foot reciprocating motion equipment |
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| CN101015732A true CN101015732A (en) | 2007-08-15 |
| CN100546682C CN100546682C (en) | 2009-10-07 |
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| CNB2006100028750A Expired - Fee Related CN100546682C (en) | 2006-02-09 | 2006-02-09 | Foot reciprocating motion equipment |
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Granted publication date: 20091007 Termination date: 20110209 |