CN103446705B - Foldable elliptical exercise machine - Google Patents

Abstract

The present invention relates to a kind of foldable elliptical exercise machine, mainly comprise a body frame body, one can body frame body overturns between a use angle and a folding angle relatively turning up frame, be located at the one of body frame body and rotate device, two cranks being coupled in the device that rotates and turning up frame two guide rails between two support bars, and by two they sup-port and be guided in two pedals that closes motion on track. Mainly it is characterised in that: a locking gear is even dynamic by turning up frame, and locking gear have can be movable between a unlocked position and a upper lock position a clutch part, when turning up frame turn to use angle by folding angle, device does not interfere with each other clutch part with rotating, when turning up frame turn to folding angle by use angle, clutch part stops a predetermined member of the device that rotates to be rotated, and the device entirety that makes to rotate cannot be rotated. The crank of the device that rotates, when folding or expansion elliptical exercise machine, is locked simultaneously or is unlocked, it is not necessary to additionally increase the step locked or unlock by the present invention person of being easy to use.

Description

Foldable elliptical exercise machine

Technical field

The present invention relates to indoor sports equipment, refer to a kind of foldable elliptical exercise machine (Elliptical) especially.

Background technology

Applicant once provided such as the U.S. the 7th, 946, the foldable elliptical exercise machine of No. 962 patents, folding anterior-posterior length and the less folding state of floor space can be become when not using, and no matter be that elliptical exercise machine is accommodated folding state by using state, or it being launched into using state by folding state, its operation is all quite easy. But, aforementioned elliptical exercise machine is when folding state, and its can interconnect mutually dynamic component such as crank mechanism, swing arm etc. are not locked, therefore, when these dynamic components that can interconnect mutually are subject to external force or its center of gravity is offset, displacement still can be produced. Thus, when user to be moved whole elliptical exercise machine, aforementioned components can produce the situation of displacement, will cause the upper puzzlement greatly of carrying.

On the other hand, the U.S. discloses the foldable elliptical exercise machine that No. 2008/0280733 patent discloses another kind of pattern, and it has and can fold the mechanism making crank rotate under state. Shifting mechanism for locking up is manually pulled with the use of person by this mechanism, makes it to detain on crank the cylinder preset with the crank mechanism that locks. But, aforementioned techniques need to be moved mechanism for locking up lock crank mechanism by pulling in addition, unusual inconvenience in operation.

Summary of the invention

For the problems referred to above, the main purpose of the present invention is to provide a kind of foldable elliptical exercise machine, can for user with one-time action folding simply or expansion, and, allow user when completing folding, can make in the lump all components be in cannot be movable locking state, and when launching to use, namely complete to release the action of component locking state.

For achieving the above object, a kind of foldable elliptical exercise machine provided by the present invention, it is characterised in that comprise: a body frame body; One turning up frame, with described body frame body pivot joint, relatively described body frame body overturns between a use angle and a folding angle, and described turning up frame has two guide rails; One rotates device, has a crank axle, two cranks, a flywheel and a transmission rig; Described crank axle is hubbed at described body frame body; Described two cranks are fixedly arranged on the relative both sides of described crank axle respectively; Described flywheel is hubbed at described body frame body; Described transmission rig power connects described two cranks and described flywheel; Two support bars, have one respectively and rotate portion, reciprocal portion and a support portion; The turn-around portion of described two support bars is not hubbed at described two cranks, and described in rotate portion along a circular track around described crank axle; The reciprocated part of described two support bars is not equipped on described two guide rails; When described turning up frame is positioned at described use angle, the reciprocated part of described two support bars is not reciprocating along described two guide rails; Two pedals, support portion with described two support bars is connected respectively; One locking gear, is located at described turning up frame and described rotates between device, and described locking gear is even dynamic by described turning up frame, and described locking gear has a clutch part movable between a unlocked position and a upper lock position; When described turning up frame turn to described use angle by described folding angle, described clutch part correspondence is positioned at described unlocked position, and does not interfere with each other with the described device that rotates; When described turning up frame turn to described folding angle by described use angle, described clutch part correspondence is positioned at described upper lock position, and a predetermined member of the device that rotates described in prevention is rotated, and the device entirety that rotates described in making cannot be rotated.

In the technical scheme of above-mentioned the present invention, also comprise two swing arms and two connecting rods, described two swing arm correspondences are hubbed at described body frame body, and there is a top and a bottom respectively, one end of described two connecting rods is fixed in described two pedals respectively, and the other end of described two connecting rods is articulated in the bottom of described two swing arms respectively; When described turning up frame be positioned at described folding angle and described in rotate device by described locking gear lock time, described two swing arms present overlap under side-looking.

The described predetermined member of the described device that rotates is provided with two restricted portions, and described two restricted portions are symmetrical arranged in 180 degree centered by the rotating shaft of described predetermined member; When described turning up frame is positioned at described folding angle and described clutch part is positioned at described upper lock position, described clutch part can be inconsistent with wherein restricted portion described in.

The described transmission rig of the described device that rotates comprises at least two belt pulleys and at least one pulley belt, and described in the rotate described predetermined member of device be wherein belt pulley described in.

The described predetermined member of the described device that rotates is described flywheel.

Described clutch part is hubbed at described body frame body, and described locking gear also includes an elasticity part, and described elasticity part is located between described body frame body and described clutch part, and described clutch part applies the restoring force rotated toward described upper lock position from described unlocked position; When described turning up frame is positioned at described use angle, described clutch part is pushed against in described unlocked position by described turning up frame, related make described elasticity part bullet part distortion and put aside restoring force; When described turning up frame is positioned at described folding angle, described clutch part is applied restoring force by described elasticity part, makes described clutch part be positioned at described upper lock position.

Before described turning up frame leaves described use angle and not yet arrives described folding angle, namely described clutch part is moved to described upper lock position; When described turning up frame is turn to close to described use angle by described folding angle, described clutch part is just moved to described unlocked position.

The clutch part of described locking gear has a card hook, and described in the rotate described predetermined member of device be provided with at least one restricted portion for coordinating with described card hook, the two arc lead angles that each described restricted portion has a groove and is connected with described groove both sides.

When described turning up frame is positioned at described folding angle, and when the clutch part of described locking gear is positioned at described upper lock position, described clutch part can be conflicted with the described predetermined member of the described device that rotates, and stops described predetermined member to be rotated by frictional force therebetween.

Adopt technique scheme, foldable elliptical exercise machine provided by the present invention is by the continuous action relation between turning up frame and locking gear, the person of being easy to use is when folding or expansion elliptical exercise machine, the crank of the device that rotates is locked simultaneously or unlock, it is not necessary to additionally increase the step locked or unlock.

Accompanying drawing explanation

Fig. 1 and Fig. 2 is the stereographic map under the foldable elliptical exercise machine of an embodiment of the present invention is in using state;

Fig. 3 is the side-view of the foldable elliptical exercise machine shown in Fig. 2;

Fig. 4 is the stereographic map under the foldable elliptical exercise machine of present embodiment is in folding state;

Fig. 5 is the side-view of the foldable elliptical exercise machine of Fig. 4;

Fig. 6 is the side-view under the foldable elliptical exercise machine of present embodiment is in folding state, but its component state is just contrary with state left-right shown in Fig. 5;

Fig. 7 is the partial enlargement figure of the foldable elliptical exercise machine shown in Fig. 2;

Fig. 8 is the partial enlargement figure of the foldable elliptical exercise machine shown in Fig. 4;

Fig. 9 A to Fig. 9 D be the foldable elliptical exercise machine of present embodiment by using state to the locking gear action schematic diagram of folding state.

Embodiment

Now lift following examples and structure and effect to the present invention is described in detail by reference to the accompanying drawings.

As shown in Figure 1 to Figure 3, the foldable elliptical exercise machine 1 of present embodiment comprises body frame body 10, turning up frame 20, and rotates device 30, two support bar 40, two pedal 50 and a locking gear 60. Turning up frame 20 is hubbed at body frame body 10, relatively can overturn between a use angle and a folding angle and locate by body frame body 10. The device 30 that rotates is located at body frame body 10. Each support bar 40 one end connects and rotates device 30, and the other end is equipped on turning up frame 20, so that the circular track that the device 30 that rotates produces adding, the reciprocating path of two support bars 40 on turning up frame 20 is combined into approximate oval motion track. Two pedals 50 are connected with two support 40 bars respectively, for carrying the both feet of user. The device 30 that rotates, for being locked by the elliptical exercise machine 1 under folding state, is particularly locked by locking gear 60, makes support bar 40 component correspondence such as grade present locking state.

Body frame body 10 is arranged on ground, and body frame body 10 comprises base 11, framework 12, pillar 13 and a handrail 14 in the present embodiment. Base 11 is the part that body frame body 10 level pastes ground. Framework 12 is fixed in above base 11. Pillar 13 is up extended to form by framework 12 top. Handrail 14 is arranged at the top close to pillar 13, is available for users to hold up when moving hold. In addition, pillar 13 top is for installing the manipulation instrument of elliptical exercise machine 1.

As shown in Figures 2 to 5, turning up frame 20 and body frame body 10 pivot joint, and there are two guide rails 21 being parallel to each other, each guide rail 21, in direct rod shape, has an a front end 21a and rear end 21b. Extend forward by two guide rail 21 front end 21a and accumulate one long-armed 23, long-armed 23 front ends are articulated in the trailing edge of framework 12, turning up frame 20 can be overturn between a use angle (as shown in Figure 2) and a folding angle (as shown in Figure 4) with a trip shaft A1 and relative body frame body 10, in the present embodiment, it may also be useful to angle and folding angle difference about 80 degree.

As shown in Figure 3, when turning up frame 20 is positioned at use angle, the foot pad bottom turning up frame 20 can be supported on ground, makes two guide rails 21 generally be level and press close to ground. As shown in Figure 5, when turning up frame 20 is positioned at folding angle, two guide rails 21 and ground press from both sides the acute angle of nearly 80 degree.

On the other hand, body frame body 10 is provided with a spacer 15, is fixed on the rear side of framework 12, and corresponding with long-armed 23 front ends. Spacer 15 is the arc curved plate in quadrntnt week taking trip shaft A1 as the center of circle, spacer 15 has one first pilot hole 15a and the 2nd pilot hole 15b, and first pilot hole 15a and the 2nd pilot hole 15b taking trip shaft A1 as the angular distance in the center of circle is from being about 80 degree, be also exactly that the angle between aforementioned folding angle and use angle is poor. When turning up frame 20 is positioned at use angle, long-armed 23 front ends are positioned at the first pilot hole 15a; When turning up frame 20 is positioned at folding angle, then long-armed 23 front end correspondences are positioned at the 2nd pilot hole 15b. Above-mentioned turning up frame 20 could the control mode of movable and location, substantially similar aforesaid US the 7th, 946, technology disclosed in No. 962 patents, namely, turning up frame 20 is provided with a locating mechanism 70, mainly has the flexible latch 72, that the control being located at turning up frame 20 rear end is located at long-armed 23 front ends 71, and can be linked by the spring (not shown) and that latch 72 pushes against outward and control the cable wire 73 (see Fig. 9 A, only local) of 71 with latch 72. In other words, it may also be useful to person pulls control 71 with company's running wire 73, makes latch 72 drawable or be positioned in the first pilot hole 15a or the 2nd pilot hole 15b. Due to the creation emphasis of the non-genus the present invention of this part, therefore seldom explain at this.

The device 30 that rotates is located on the framework 12 of body frame body 10, and the device 30 that rotates has crank axle 31, two crank 32, flywheel 33 and a transmission rig 34. Crank axle 31 is hubbed at framework 12. Two cranks 32 are fixedly arranged on the relative both sides of crank axle 31 respectively, and maintain 80 degree by the center of circle of crank axle 31 relatively. Flywheel 33 is hubbed at framework 12. Transmission rig 34 power connects two cranks 32 and flywheel 33, wherein, the transmission rig 34 of present embodiment comprises big belt pulley 35, little belt pulley 36 and a pulley belt 37, big belt pulley 35 and crank 32 are coaxially fixed in crank axle 31, little belt pulley 36 is coaxially fixed in flywheel 33, pulley belt 37 ring set connects big belt pulley 35 and little belt pulley 36, makes crank 32 and the flywheel 33 can with the mutual driven rotary of predetermined speed ratios.

Two support bars 40 have one respectively and rotate reciprocal portion 42 of portion 41, one and a support portion 43. The front end of two support bars 40 forms the portion 41 that rotates, and is hubbed at two cranks 32 respectively, and the portion 41 that rotates along a circular track around crank axle 31. Be pivoted bottom the rear end of two support bars 40 roller respectively, is rollably mounted in corresponding guide rail 21 end face, forms the reciprocal portion 42 that can move around along guide rail straight line. In the present embodiment, each support bar 40 is in the portion of rotating 41 and is back and forth provided with aforementioned support portion 43 between portion 42, under turning up frame 20 is in use angle, rotate portion 41 along circular track do around circular motion time, reciprocal portion 42 can be corresponding reciprocating on guide rail 21, meanwhile, support portion 43 can with the closed track cyclic motion of a similar ellipse.

Two pedals 50 support portion 43 with two corresponding support bars 40 connect respectively, and under turning up frame 20 is positioned at use angle, pedal 50 is because being subject to the traction of support portion 43 so that pedal 50 is also with the closed track cyclic motion of a similar ellipse.

In the present embodiment, each pedal 50 is articulated in above the support portion 43 of support bar 40 by its front end, in addition, separately comprises two swing arm 80 and two connecting rods 90. Two swing arm 80 correspondences are hubbed at the left and right dual side-edge of pillar 13, and have the top and a bottom that can mutually oppositely wave respectively, and wherein, top is formed for the handle 81 that user grasps when moving. The rear end of two connecting rods 90 is fixed in the outside of two pedals 50 respectively, and the front end of two connecting rods 90 is articulated in the bottom of two swing arms 80 respectively. So, pedal 50 rear end can deflect by opposed front end up and down, collocation swing arm 80 and the continuous action relation of connecting rod 90, allows user step on row when moving on pedal 50, the posture that the angle pitching change of sole can be run closer to reality.

Should be additionally, relation between support bar 40 in present embodiment, pedal 50 and connecting rod 90 three, also the U.S. the 5th can be used instead, 540, the structure that No. 637 patents disclose, that is, connecting rod and support bar are separately with the mutual pivot joint of predetermined position between its forward and backward two ends, pedal is then fixed in the rear end of connecting rod, is not directly connected with support bar. So, pedal can be guided in one equally and close motion on track, and changes the angle between itself and support bar in motion regularly. According to the position of the mutual pivot joint of this kind of structure, support bar and connecting rod, then " support portion " being considered as in the present invention. In addition, the elliptical exercise machine of the present invention also may omit swing arm 80 and connecting rod 90, does not namely provide the function that hand moves, and pedal 50 is directly fixed on support bar 40, cannot change the angle between itself and support bar 40 in motion.

When not using elliptical exercise machine 1, it may also be useful to person can be amounted to into folding state as shown in Figures 4 and 5. Generally speaking, user can stand in the rear of elliptical exercise machine 1, and the control pulling turning up frame 20 rear end, 71, makes the latch 72 of turning up frame 20 front end detach the first pilot hole 15a of spacer 15, and turning up frame 20 is carried toward pull-up, turning up frame 20 is axially overturn forward taking trip shaft A1 as propping up. In umklapp process, the latch 72 of locating mechanism 70 can be against inside spacer 15 always, and frame 20 to be flipped arrives folding angle, and namely latch 72 inserts the 2nd pilot hole 15b automatically to lock turning up frame 20.

Same, when being launched to use by folding state by above-mentioned elliptical exercise machine 1, also the locking state of turning up frame 20 must first be released, turning up frame 20 is pulled downwards backward, make turning up frame 20 by fulcrum of trip shaft A1 downwardly towards rear overturning, land to the latter half of level of turning up frame 20, also it is exactly arrive use angle, more automatically locate by locating mechanism 70.

In addition, a gas spring (airspring) 24 it is connected between turning up frame 20 front end and body frame body 10, turning up frame 20 can be assisted up to overturn in above-mentioned folding process, make user comparatively laborsaving, and in expansion process, slow down the turning up frame 20 down speed of overturning and strength, safer.

The scantling preset according to present embodiment and spatial relation, after elliptical exercise machine 1 folding, even if not yet utilizing locking gear 60 (details is aftermentioned) to lock, the position of each component is usually as shown in Figure 5, or left and right two sides are contrary, as shown in Figure 6. Dynamic to the component in folding state process by using state about elliptical exercise machine 1, the explanation in aforesaid US No. 7,946,962 patent can be consulted.

Earlier figures 6 contrary finger left and right with Fig. 5, user, turning up frame 20 is carried to pull-up in the process carrying out folding, according to the component closed position before folding, and dynamic each component of aforementioned phase interconnection is subject to gravity and user forces in the impact of turning up frame 20, it is possible to present left and right component just toward the situation of reverse direction displacement. but, no matter it is which kind of displacement process, elliptical exercise machine 1 presents equilibrium state as shown in Figure 5 or Figure 6 the most at last, namely, under side-looking, wherein a crank 32 is by crank axle 31 inclined downward backward, another crank 32 is inclined upward relatively forward, and the support bar 40 that the crank 32 pointing to rear connects, the position of its top (i.e. reciprocal portion 42) on guide rail 21 can higher than the top of another support bar 40, and, the left side being indirectly connected with two support bars 40 respectively, although right two connecting rod 90 angle slightly differences, but now the bottom of two connecting rods 90 is (namely with a left side, the articulated section, bottom of right two swing arms 80) can roughly be positioned at same position, in other words, two swing arms 80 are roughly overlapping when side-looking, there is no dividing of front and back.

Again as shown in Figures 2 to 5, locking gear 60 is located at turning up frame 20 and rotates between device 30, even dynamic by turning up frame 20, and locking gear 60 have can be movable between a unlocked position and a upper lock position a clutch part 61, it is hubbed on framework 12, and an elasticity part (present embodiment employing extension spring) 62 is located between framework 12 and clutch part 61, for the restoring force applying to rotate from unlocked position toward upper lock position to clutch part 61.

As shown in Figures 7 and 8, clutch part 61 has a card hook 61a, for the big belt pulley 35 of the fixed device 30 that only rotates. The big belt pulley 35 of present embodiment arranges 180 degree of restricted portions 63 of relative two thereon; In addition, the two arc lead angle 63b that restricted portion 63 has a groove 63a and is connected with groove both sides, aforementioned grooves 63a and arc lead angle 63b all exceeds the circumferential outer edge of big belt pulley 35. When elliptical exercise machine 1 roughly presents equilibrium state as shown in Figure 5 or Figure 6, the wherein restricted portion 63 on big belt pulley 35 can stop at the side of clutch part 61 position just.

As shown in Fig. 7 and Fig. 9 A, when turning up frame 20 is positioned at use angle, the top side pushing and pressing clutch part 61 of long-armed 23 front ends, clutch part 61 is counterclockwise rotated according to pivotal axis A2, and then connects moving property part 62, elasticity part 62 elasticity is out of shape, now, clutch part 61 is positioned at unlocked position, and does not interfere with each other with big belt pulley 35, and the device 30 that namely rotates is free to rotate.

As shown in Figure 9 B, when user pulls control 71, latch 72 is made to detach the first pilot hole 15a of spacer 15, and when turning up frame 20 is up turned over folding, owing to long-armed 23 do not continue pushing and pressing clutch part 61, now, clutch part 61 is imposed restoring force by elasticity part 62, and clutch part 61 clockwise direction is rotated to upper lock position. in this stage, if the restricted portion 63 on big belt pulley 35 not yet arrives location, then the card hook 61a of clutch part 61 can approach or gently be butted on around pulley belt 37 surface on big belt pulley 35, and the device 30 that rotates still can rotate. please refer to Fig. 9 C and Fig. 9 D, turning up frame 20 is in the process of upset, latch 62 can always inside spacer 15, and clutch part 61 is continued in upper lock position, treat that big belt pulley 35 rotates to location, namely restricted portion 63 is gradually when clutch part 61, first the card hook 61a of clutch part 61 can conflict the arc lead angle 63b of both sides, restricted portion 63, under the guiding and pushing and pressing of arc lead angle 63b, clutch part 61 can deflect toward counterclockwise direction slightly, then, restricted portion 63 is rotated further, until card hook 61a arcuately lead angle 63b take advantage of a situation in the groove 63a slipping into restricted portion 63, namely the action that big belt pulley 35 is locked by clutch part 61 is completed, the similar same time, latch 72 also inserts the 2nd pilot hole 15b automatically to lock turning up frame 20.

It is described above that to automatically lock action be the usual condition of aforementioned elliptical exercise machine 1 in folding process. And under minority situation, turning up frame 20 may be occurred to be positioned folding angle, but the groove 63a in restricted portion 63 not yet arrives the position that can be subject to clutch part 61 inlay card on big belt pulley 35, now, user need to shake swing arm 80 a little to drive big belt pulley 35 rotating by a small margin, makes the card hook 61a of clutch part 61 can slip into the groove 63a in restricted portion 63.

In addition, assume that elliptical exercise machine 1 is before carrying out folding, wherein by chance it is parked in the side of clutch part 61 once restricted portion 63, so, when turning up frame 20 1 leaves use angle (such as arriving angle shown in Fig. 9 B), clutch part 61 will may lock the device 30 that rotates at once. Even if rotating, device 30 cannot rotate, and turning up frame 20 still can continue toward the upset of folding angle, and the support bar 40 that front end has been located also can be raised and hold up gradually along with turning up frame 20, until becoming folding state as shown in Figure 5 or Figure 6.

When elliptical exercise machine 1 to be launched into using state by folding state by user, user pulls control 71, latch 72 is made to detach the 2nd pilot hole 15b of spacer 15, and turning up frame 20 is down turned over folding, owing to clutch part 61 is not affected by any external force, therefore the card hook 61a of clutch part 61 is still sticked in the groove 63a in restricted portion 63; Upset is continued at turning up frame 20, and latch 72 continues to be butted in the process inside spacer 15, the card hook 61a of clutch part 61 also continues to be sticked in the groove 63a in restricted portion 63, in other words, during turning over, at turning up frame 20, this section rolled over to use angle by folding angle, big belt pulley 35 all cannot operate. When turning up frame 20 is close to use angle, long-armed 23 tops are arrival & departure component 61 just so that it is when counterclockwise rotating into unlocked position, the card hook 61a of clutch part 61 could depart from the groove 63a in restricted portion 63, makes big belt pulley 35 free to rotate. Present embodiment so designs, it is taking the safety of user as the first consideration, if in the process that elliptical exercise machine 1 launches, big belt pulley 35 is just free to rotate, for user, elliptical exercise machine 1 displacement between each linkage part in expansion process is controlled by being difficult to, moreover, the process launched due to elliptical exercise machine 1 carries out toward the direction of user, if big belt pulley 35 not being locked, wherein by the component of implicit many unstable equilibriums, such as each linkage part, this is exactly the hidden trouble in safety of user. Therefore, present embodiment allows the card hook 61a of clutch part 61 when turning up frame 20 turn to use angle really, just departs from the groove 63a in restricted portion 63.

It should be noted that the position of clutch part 61 in present embodiment, it is select the place that distance big belt pulley 35 is nearest on the one hand, the position directly can conflicted by turning up frame 20 on the other hand. But, this position non-exclusive alternative, known according to previous discussion, the folding state that the elliptical exercise machine 1 of present embodiment is final can present equilibrium state as shown in Figure 5 or Figure 6, namely restricted portion 63 to arrange position constant, but the position of clutch part 61 is arranged on the front side of big belt pulley 35 instead, also it is exactly the place of relative with script position 180 degree, still can reach effect that big belt pulley 35 is locked simultaneously. Now the difference is that, turning up frame 20 clutch part 61 of cannot directly conflicting is locked or unlocked position to change it, and need to by other component, such as cable wire (the similar aforementioned locating mechanism 70 of gimmick) etc.; In addition, all the other effects there is no obvious difference. According to design requirement, change two restricted portions 63 as long as corresponding and take turns the position on 35 at great Pi, it is possible to clutch part 61 is arranged on big belt pulley 35 top side, bottom side or other suitable position. The technology feature of the present invention is that turning up frame 20 is received to folding angle by use angle, or while being expanded to use angle by folding angle or in process, can in the lump linkage locking device 60 to rotating device 30 lock, therefore, in present embodiment, the position of clutch part 61 is only illustration.

It should be noted that, the technology feature of the present invention is the action locked by the device 30 that rotates with locking gear 60, and the form that big belt pulley 35 is locked only is described by present embodiment with locking gear 60, in addition, locking gear 60 to rotating remaining component of device 30 such as crank 32, flywheel 33, little belt pulley 36 etc. lock, all do not depart from the creation spirit of the present invention.

In addition, rotate and device 30 belongs to " transmission " for the transmission rig 34 of even dynamic crank 32 with flywheel 33, but the transmission rig 34 in the present invention also may comprise " secondary drive ", also it is exactly, first with the first belt even dynamic crank and a secondary drive axle, again with another belt even dynamic this secondary drive axle and flywheel, under this kind of mechanism, it is possible to select, with locking gear, the intermediary's belt pulley on this secondary drive axle is carried out lock out action.

Specifically, when the foldable elliptical exercise machine 1 of present embodiment is in the equilibrium state shown in Fig. 5 or Fig. 6, its two swing arm 80 (comprising the second chief 81 on top) is roughly overlapping, except visually attractive in appearance, when user need to topple over elliptical exercise machine 1 and during to be positioned at the roller 16 of base 11 and carry out displacement, grasping second chief 81 that can be symmetrical, is convenient to force control. In addition, locate and gas spring 24 pushes against owing to turning up frame 20 is subject to locating mechanism 70, and the device 30 that rotates is subject to the only fixed of locking gear 60 so that what elliptical exercise machine 1 can be firm is positioned at folding state. Therefore, user is in the process of mobile ellipse motion machine 1, except carrying can be absorbed in, outside noting whether having other linkage part can be subjected to displacement because of carrying without the need to diverting one's attention, also elliptical exercise machine 1 can be avoided to produce unbalanced moment in the process of carrying, cause upset, topple over or the danger situation of landing.

On the other hand, in other embodiments, directly can be used as clutch part with great friction coefficient material, when turning up frame 20 is received to folding angle, the aforementioned material with great friction coefficient can be even dynamic to oppress big belt pulley 35 via turning up frame 20, makes big belt pulley 35 be limited by frictional force and cannot rotate. This kind of practice, can reach the effect of only big belt pulley 35 surely equally, and the device 30 that namely prevents from rotating rotates when turning up frame 20 is positioned at folding angle.

By above-mentioned enforcement mode it will be seen that apply the foldable elliptical exercise machine 1 of the present invention, it may also be useful to when person in folding or can launch elliptical exercise machine 1, in the lump the device 30 that rotates is locked or unlocked, and the step additionally locked without the need to increasing or unlock, it is very easy to operate. On the other hand, it may also be useful to person can when the device 30 that rotates cannot be rotated on lock, and safe and firm moves elliptical exercise machine 1. In addition, the swing arm 80 that elliptical exercise machine 1 is symmetrical under folding state, can further guarantee that user forces in the safety of elliptical exercise machine 1.

Claims (9)

1. a foldable elliptical exercise machine, includes:

One body frame body;

One turning up frame, with described body frame body pivot joint, relatively described body frame body overturns between a use angle and a folding angle, and described turning up frame has two guide rails;

One rotates device, has a crank axle, two cranks, a flywheel and a transmission rig; Described crank axle is hubbed at described body frame body; Described two cranks are fixedly arranged on the relative both sides of described crank axle respectively; Described flywheel is hubbed at described body frame body; Described transmission rig power connects described two cranks and described flywheel;

Two support bars, have one respectively and rotate portion, reciprocal portion and a support portion; The turn-around portion of described two support bars is not hubbed at described two cranks, and described in rotate portion along a circular track around described crank axle; The reciprocated part of described two support bars is not equipped on described two guide rails; When described turning up frame is positioned at described use angle, the reciprocated part of described two support bars is not reciprocating along described two guide rails;

Two pedals, support portion with described two support bars is connected respectively;

It is characterized in that:

One locking gear, is located at described turning up frame and described rotates between device, and described locking gear is even dynamic by described turning up frame, and described locking gear has a clutch part movable between a unlocked position and a upper lock position; When described turning up frame turn to described use angle by described folding angle, described clutch part correspondence is positioned at described unlocked position, and does not interfere with each other with the described device that rotates; When described turning up frame turn to described folding angle by described use angle, described clutch part correspondence is positioned at described upper lock position, and a predetermined member of the device that rotates described in prevention is rotated, and the device entirety that rotates described in making cannot be rotated.

2. foldable elliptical exercise machine as claimed in claim 1, it is characterized in that: also comprise two swing arms and two connecting rods, described two swing arm correspondences are hubbed at described body frame body, and there is a top and a bottom respectively, one end of described two connecting rods is fixed in described two pedals respectively, and the other end of described two connecting rods is articulated in the bottom of described two swing arms respectively; When described turning up frame be positioned at described folding angle and described in rotate device by described locking gear lock time, described two swing arms present overlap under side-looking.

3. foldable elliptical exercise machine as claimed in claim 2, it is characterised in that: described in the rotate described predetermined member of device be provided with two restricted portions, described two restricted portions are symmetrical arranged in 180 degree centered by the rotating shaft of described predetermined member; When described turning up frame is positioned at described folding angle and described clutch part is positioned at described upper lock position, described clutch part can be inconsistent with wherein restricted portion described in.

4. foldable elliptical exercise machine as claimed in claim 1, it is characterised in that: described in the rotate described transmission rig of device comprise at least two belt pulleys and at least one pulley belt, and described in the rotate described predetermined member of device be wherein belt pulley described in.

5. foldable elliptical exercise machine as claimed in claim 1, it is characterised in that: described in the rotate described predetermined member of device be described flywheel.

6. foldable elliptical exercise machine as claimed in claim 1, it is characterized in that: described clutch part is hubbed at described body frame body, described locking gear also includes an elasticity part, described elasticity part is located between described body frame body and described clutch part, and described clutch part applies the restoring force rotated toward described upper lock position from described unlocked position; When described turning up frame is positioned at described use angle, described clutch part is pushed against in described unlocked position by described turning up frame, related make described elasticity part elasticity distortion and put aside restoring force; When described turning up frame is positioned at described folding angle, described clutch part is applied restoring force by described elasticity part, makes described clutch part be positioned at described upper lock position.

7. foldable elliptical exercise machine as claimed in claim 6, it is characterised in that: before described turning up frame leaves described use angle and not yet arrives described folding angle, namely described clutch part is moved to described upper lock position; When described turning up frame is turn to close to described use angle by described folding angle, described clutch part is just moved to described unlocked position.

8. foldable elliptical exercise machine as claimed in claim 1, it is characterized in that: the clutch part of described locking gear has a card hook, and described in the rotate described predetermined member of device be provided with at least one restricted portion for coordinating with described card hook, the two arc lead angles that each described restricted portion has a groove and is connected with described groove both sides.

9. foldable elliptical exercise machine as claimed in claim 1, it is characterized in that: when described turning up frame is positioned at described folding angle, and the clutch part of described locking gear is when being positioned at described upper lock position, described clutch part can be conflicted with the described predetermined member of the described device that rotates, and stops described predetermined member to be rotated by frictional force therebetween.