CN101474469A

CN101474469A - Treadmill

Info

Publication number: CN101474469A
Application number: CNA2009100461045A
Authority: CN
Inventors: 裴文昌
Original assignee: Johnson Health Tech Shanghai Co Ltd
Current assignee: Johnson Health Tech Shanghai Co Ltd
Priority date: 2009-02-12
Filing date: 2009-02-12
Publication date: 2009-07-08

Abstract

The invention discloses a treadmill provided with a locking device. The locking device comprises a limit piece fixed at the bottom end of a support frame, a positioning piece pivoted on a framework of the treadmill and a connecting bar set of four linking bars formed by the framework and the positioning piece; wherein, the connecting bar set comprises a first connecting bar and a second connecting bar, and the first connecting bar is provided with a first connecting end and a second connecting end, wherein, the first connecting end is pivoted with the framework at first position, and the second connecting bar is connected with the second connecting end of the first connecting bar and the positioning piece; the positioning piece is pivoted with the framework at second position which is at the back of the first position; when the support frame is either at the unfolded position or at the folded position, the positioning piece and the limit piece can be locked with each other and ensure a four bar linkage mechanism to be in a self locking state. As the locking mode of the four bar linkage mechanism is adopted, the treadmill is safer and more reliable, and has high stability after being locked.

Description

Treadmill

Technical field

The present invention relates to a kind of treadmill, particularly relate to a kind of treadmill that the folding front and back of treadmill bracing frame can be locked.

Background technology

Present most treadmill all is designed to foldable form, allows user's less form that its folding can be become take up space, so that harvesting or move.And for instrument rod folding formula treadmill, the locking of instrument bar before and after folding becomes unavoidably really, therefore, if treadmill has the tight mechanism of instrument lever lock simple in structure, reliable lock, for consumers, be undoubtedly its major reason of choosing.

Chinese patent application CN200610104079.8 has disclosed a kind of treadmill that is the flat-folding form, and this treadmill mainly comprises a running platform and a rotating bracing frame, and when bracing frame also leaned on to running platform, treadmill can present flat folding form; The retaining mechanism of the support bar of this treadmill adopts the mode of turning round being articulated in the eccentric cam in the expansion link, because expansion link one end is articulated on the bracing frame, the other end is articulated on the running platform, thus when rotate turn round to certain angle then eccentric cam can compress the interior bar of expansion link and reach the purpose of locking support bar.Though preceding case can realize locking, less reliable preferably.

Summary of the invention

At the problems referred to above, main purpose of the present invention is to provide a kind of treadmill, and it adopts locking device to carry out the locking of support bar, and its steadiness is higher.

The present invention solves above-mentioned technical problem by following technical proposals: a kind of treadmill, it comprises a running platform, one is hubbed at the bracing frame of running platform front end, one is located at the locking device between running platform and the bracing frame, this running platform has a framework, this bracing frame can rotate at an expanded position and a collapsed position relative to running platform, this locking device comprises that one is fixed in the banking stop of the bottom of bracing frame, one is articulated in the spacer of framework, form the connection rod set of four connecting rods with framework and spacer, this connection rod set comprises first connecting rod and second connecting rod, this first connecting rod has first link and second link, its first link is articulated in framework at the primary importance place, this second connecting rod connects second link and the spacer of first connecting rod, this spacer is articulated in framework in second place place, its second place is at the rear of primary importance, when this bracing frame was in expansion and one of them person of collapsed position, this spacer and banking stop can be mutually locked and make quadric chain to be in self-locking state.

Wherein, this banking stop has at least one first groove and at least one second groove, and this spacer has at least one bayonet lock.

Wherein, this banking stop and the coaxial rotation of bracing frame, rounded, on its outer circumference surface, be formed with at least one pair of groove, have the angles that are approximately 90 degree between this groove, correspondingly, this spacer is formed with at least one bayonet lock that can be mutually locked with this groove.

Wherein, this banking stop has two first grooves and two second grooves, and spacer has two bayonet locks.

Wherein, this first connecting rod has from second link and extends to about running platform extension foremost, and described extension has one the 3rd link, is provided with the leader at the 3rd link place.

Positive progressive effect of the present invention is: the bracing frame of treadmill of the present invention one of expanded position and collapsed position locate to be undertaken by retaining mechanism sealed after, bracing frame not relatively running platform carry out activity and make treadmill have reasonable stability.

Description of drawings

Fig. 1 is in the stereogram of user mode for treadmill of the present invention.

Fig. 2 is the stereogram that the treadmill among Fig. 1 is removed the motor protecting cover.

Fig. 3 removes the not stereogram of locked state of motor protecting cover and support bar for treadmill.

Fig. 4 is in the stereogram of folding state for the treadmill among Fig. 1.

Fig. 5 is the stereogram that the treadmill among Fig. 4 is removed the motor protecting cover.

Fig. 6 is in the stereogram of erectting folding state for the treadmill among Fig. 1.

Fig. 7 is the explosive view of retaining mechanism of the present invention.

Fig. 8 removes the motor protecting cover for treadmill of the present invention and is in the partial enlarged drawing of user mode.

The specific embodiment

Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.

As shown in Figure 1, treadmill 10 of the present invention consists predominantly of on the ground a running platform 20 of horizontal, is erected at a bracing frame 40 of running platform front end, and an accessory part 50 that is located at the bracing frame top.Wherein, accessory part 50 mainly comprises a control panel 51 and a handrail 52.Concrete structure relevant for accessory part can at this, repeat no more referring to the particular content of Chinese patent application CN200610104079.8.

Running platform 20 roughly presents smooth in ground and the long rectangle in front and back, it has a framework 21, framework 21 has along the and arranged on left and right sides bar 22 of antero posterior axis to straight extension, be provided with a rectangular race plate between two side levers 22, and running plate the place ahead and rear about one roller bearings that extend that are pivoted respectively, the ring-type of sheathed pile warp race plate top surface and bottom surface is run and is with 25 between forward and backward two roller bearings, one moving surface 26 is provided between two roller bearings thus, can walks or run in the original place in the above for a user.The end face of two side levers 22 becomes horizontal, is available for users to stride the upright station of stepping on.

This preferred embodiment is a treadmill, more detailed it, the place ahead at moving surface 26, just running platform 20 foremost, be provided with a race band drive unit and a lifting drive that relies on electric power to operate, this race band drive unit can utilize motor to turn the roller bearing in the place ahead, with drive run be with 25 at a predetermined velocity circulation rotate, this lifting drive can utilize the driving of being located at the motor between running platform front end and the lifting support frame to reach the purpose of adjusting treadmill lifting angle.The side of protecting cover 27 is curved, is covered on the aforesaid drive unit.

The inclined to one side rear end of running platform 20 bottoms is provided with left and right two foots pad 31, and when running platform 20 was in the use location, each foot pad 31 steadily supported on the ground.

Bracing frame 40 is made of two parallel support bars 41 and the plaque 42 that connects two support bars.Each support bar 41 is the vertical bar shape, and will be wherein an end according to Y-axis on the pin joint seat of side lever 22 front ends that are articulated in running platform 20.Plaque 42 is connected between two support bars 41, make left and right two support bars 41 can around axle link 43 the axle synchronization action.

Support bar 41 can be an axle with its link 43, rotates between an expanded position and a collapsed position with respect to running platform 20, and can be located in wherein arbitrary position.As shown in Figure 2, present in running platform 20 under the prerequisite of lying status, when bracing frame 40 was positioned at expanded position, its long axis L1 was roughly parallel to the bottom surface and long axis L2 is approximately perpendicular to ground.Otherwise, as shown in Figure 4, when bracing frame 40 is positioned at collapsed position, its long axis L1, L2 are and are roughly parallel to ground, and, based on the aforementioned shapes and the pivot points of bracing frame 40, at this moment, two support bars 41 can be posted by and arranged on left and right sides bar 22 end faces of running platform 20 respectively, and plaque 42 also covers on the moving surface 26, and it is highly roughly contour with protecting cover 27 end faces of running platform 20 front ends.

As Fig. 3, Fig. 7 and in conjunction with Fig. 2, Fig. 4, shown in Figure 8, be provided with a locking device 60 between the bottom of bracing frame 40 and the running platform 20, bracing frame 40 can be positioned aforementioned expanded position and collapsed position.This locking device 60 mainly comprises a banking stop 61, a spacer 62, a connection rod set 63 formations.This banking stop 61 has the circular shape that is slightly larger than quarter turn approximately, its link 43 inner side places and its center of arc that is welded in support bar 41 is coaxial with link 43, on the excircle of the circular shape of this banking stop 61, be provided with first groove 611 and second groove 612, first groove 611 and second groove 612 roughly are 90 degree left and right sides angles on periphery, best angle is 85 degree.More preferably, can on the excircle of the circular shape of this banking stop 61, be provided with two first grooves 611 and two second grooves 612, this two first groove 611 and two second grooves 612 1/4 circular arc at interval roughly on periphery.This connection rod set 63 comprises first connecting rod 631 and second connecting rod 632, this first connecting rod 631 has first link 6311 and second link 6312, its first link 6311 is articulated in the inboard of side lever 22 at primary importance 221 places, this first connecting rod 631 locates to form an extension 633 downwards directly over second link 6312 extends forward and terminates in the front end of running platform roughly, have the 3rd link 6313, one handles 64 in this extension and be located at the 3rd link 6313 places.Between the above connecting rod, connecting rod with between the side lever, connecting rod is with all adopting threaded screw or similar securing member to connect between the handle.Preferably, on this extension, be provided with one and in side lever, side-prominent one support piece, be generally a pin near this second link place.Second connecting rod 632 connects second link 6312 and the spacer 62 of first connecting rod 631, this spacer 62 is articulated in side lever 22 in the second place 222 places, the second place 222 is at the rear of primary importance 221, this spacer 62 is provided with one to the outstanding locking pin 621 in the side lever outside, more preferably, with respect to two pairs of grooves on the banking stop, a pair of locking pin 621 can be set on this spacer.When bracing frame 40 is in expanded position, user's hand grip 64 clockwise rotates this first connecting rod 631, spacer 62 will clockwise rotate thereupon, thereby the locking pin 621 on the spacer 62 can enter first groove 611 on the banking stop 61, after locking pin 621 enters this first groove 611 fully, the user can rotate this first connecting rod 631 further, make first connecting rod 631 and second connecting rod 632 be in same straight line, at this moment, this first connecting rod 631, second connecting rod 632, side lever 22, spacer 62 formed quadric chains are in self-locking state, so thereby the user to support bar 41 apply forward power still backward power locking device 60 is thrown off realize locking.When folding, bracing frame 40 can forward collapsed position to clockwise by expanded position, promptly approximately rotate 90 degree, best is 85 degree, because banking stop 61 and pin joint seat 223 coaxial are connected of support bar 41 with running platform side lever 22, so the banking stop 61 of support bar 41 can rotate synchronously with support bar 41, promptly this banking stop 61 has also rotated identical angle, at this moment, second groove 612 on the banking stop 61 rotates to first groove 611 residing position when expanded position just, method as described above, the user's hand grip handle 64 that turns clockwise just can make this locking device 60 lockings.If banking stop is set to two first grooves and two second grooves, spacer correspondingly is set to two locking pins, and then the treadmill after the locking is more solid and reliable; If be provided with to piece in the extension of first connecting rod, then when the user clockwise rotated handle, first connecting rod was easy to support piece by this and presses against second connecting rod, because the power transmission is better, this kind setting can make whole motion process more smooth and easy reliable.

As shown in Figure 5, the front end of running platform also has electric lifting mechanism 70, and this electric lifting mechanism 70 is made of lifting support frame 71, drive unit 72.This lifting support frame 71 is U font that couch and aft-opening, it has the cross bar 713 of left and right support chip 711,712, the left and right support chip front end of a welding, the rear end of this support chip 711,712 is hubbed on the pin joint seat 224,225 (figure number 225 does not indicate) that is welded in running platform side lever 22 bottom sides, the two ends of this cross bar 713 respectively have one, left and right two scroll wheels 714,715 are located at respectively on this axle, and the centre of this cross bar 713 also is welded with a pin joint seat 716.This drive unit 72 is made up of with the flexible screw rod 722 that is connected with motor output shaft a motor 721, and this motor 721 is fixed on the running platform, and this screw rod 722 is fixed on the middle pin joint seat 716 of cross bar.

As Fig. 6 and in conjunction with Fig. 3, shown in Figure 5, the scroll wheel 714,715 of the extension 633 of above-mentioned first connecting rod 631 and cross bar 713 both sides of lifting support frame 71 forms the supporting surface 34 of a vertical direction, when treadmill be in collapsed position and device 60 locking that is locked after, the user can be supported on erection position place until treadmill 10 by this supporting surface 34 for the rear end of supporting the upset running platform by scroll wheel 714,715.As shown in Figure 6, this treadmill 10 can be stored in the flat longitudinally space, also is fit to the applying wall and stands, and can not occupy the too many interior space.

Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.

Claims

1, a kind of treadmill, it comprises a running platform, one is hubbed at the bracing frame of running platform front end, one is located at the locking device between running platform and the bracing frame, described running platform has a framework, support frame as described above can rotate at an expanded position and a collapsed position relative to running platform, it is characterized in that: described locking device comprises that one is fixed in the banking stop of the bottom of bracing frame, one is articulated in the spacer of framework, form the connection rod set of four connecting rods with framework and spacer, described connection rod set comprises first connecting rod and second connecting rod, described first connecting rod has first link and second link, its first link is articulated in framework at the primary importance place, described second connecting rod connects second link and the spacer of first connecting rod, described spacer is articulated in framework in second place place, its second place is at the rear of primary importance, when support frame as described above was in expansion and one of them person of collapsed position, described spacer and banking stop can be mutually locked and make quadric chain to be in self-locking state.

2, treadmill according to claim 1, it is characterized in that: described banking stop has at least one first groove and at least one second groove, described spacer has at least one bayonet lock, and when bracing frame was positioned at expanded position, bayonet lock can be embedded in first groove; When bracing frame was positioned at collapsed position, bayonet lock can be embedded in second groove.

3, treadmill according to claim 2, it is characterized in that: described banking stop and the coaxial rotation of bracing frame, rounded, on its outer circumference surface, be formed with at least one pair of groove, has the angle that is approximately 90 degree between described groove, correspondingly, described spacer is formed with the bayonet lock that at least one can be mutually locked with this groove.

4, treadmill according to claim 3 is characterized in that: described banking stop has two first grooves and two second grooves, and spacer has two bayonet locks.

5, treadmill according to claim 4 is characterized in that: described first connecting rod has from second link and extends to about running platform extension foremost, and described extension has one the 3rd link, is provided with the leader at the 3rd link place.

6, treadmill according to claim 5, it is characterized in that: piece is supported in be provided with one near the second link place in the extension of described first connecting rod, when spacer was sealed with banking stop, the piece that supports of first connecting rod compressed second connecting rod and makes quadric chain to self-locking state.

7, treadmill according to claim 5, it is characterized in that: a lifting support frame is articulated in running platform bottom side front end, the extension of described lifting support frame and described first connecting rod forms a supporting surface in vertical direction, after running platform was in collapsed position and is locked, described running platform can be overturn and is erected on the described supporting surface.