CN101342413A

CN101342413A - Treadmill

Info

Publication number: CN101342413A
Application number: CNA2008100419787A
Authority: CN
Inventors: 张�浩
Original assignee: Johnson Health Tech Shanghai Co Ltd
Current assignee: Johnson Health Tech Shanghai Co Ltd
Priority date: 2008-08-22
Filing date: 2008-08-22
Publication date: 2009-01-14

Abstract

The present invention discloses a running machine, which comprises a rear base, a rear roller and a running belt; wherein, the rear base is provided with two oppositely arranged frames; the running belt rounds the rear roller; each frame is provided with a positioning part and a guiding part with a guiding groove; the rear roller is provided with a roller shaft; at least one position-adjusting part is connected with the roller shaft and restricted by the positioning part; the position-adjusting part ensures that the roller shaft can move between a first position and a second position in the guiding groove; when the roller shaft is at the first position, the running belt is loosened; and when the roller shaft is at the second position, the running belt is tensioned. When a running board needs to be folded, the running belt is first loosened, so the running belt cannot be stretched in the process of folding, thereby, the elasticity of the running belt can still be maintained after the running machine is repetitively used, and the running belt is not easily damaged.

Description

Treadmill

Technical field

The present invention relates to a kind of body-building device, particularly relate to the folding treadmill of a kind of energy.

Background technology

The U.S. Pat 6830540 of ICON company and its Chinese patent families 02804355.3 have disclosed a kind of folding treadmill, its pedestal comprises an anterior and rear portion, the rear portion can be folded to the front portion by a fold mechanism, but for this folding treadmill, it depends on the elasticity of running band fully, when the rear portion after the front portion is folding, run band because elasticity can be elongated, after repeatedly folding or folding for a long time, run the elasticity of band and can receive influence, when normal the use, be elongated owing to run band, run band and particularly run between the plate and can not closely combine, repeatedly breakage that will the accelerative running band after the use with pedestal.

Summary of the invention

The technical problem to be solved in the present invention be for overcome in the prior art run band can damaged defective, a kind of treadmill is provided,, run band and be tensioned during at treadmill in motion state,, when folding, run band and relaxed at treadmill; So just can conveniently fold, and the race band is not easy breakage.

The present invention solves above-mentioned technical problem by following technical proposals: a kind of treadmill, it comprises a back pedestal, one rear roller and one runs band, this back pedestal has two frameworks that are oppositely arranged, this race band is around on this rear roller, it is characterized in that, have positioning piece and on each framework and have the guide of gathering sill, this rear roller has a roller shaft, at least one position adjustments part is connected with this roller shaft and is limited by this keeper, this position adjustments part make this roller shaft in this gathering sill a primary importance and a second place between move, when this roller shaft was in this primary importance, this ran band by lax; When this roller shaft was in this second place, this race band was tensioned.

Wherein, this keeper is an adjustment fixed head.

Wherein, this adjustment fixed head is provided with an adjustment part.

Wherein, this adjustment part is an adjustment screw.

Wherein, this keeper is a fixed axis.

Wherein, this position adjustments part is an eccentric foot-operated arm.

Wherein, the foot-operated arm of this off-centre connects an operating parts, and this operating parts is a pedal.

Wherein, the shape of the vertical cross-section triangularity of this pedal.

Wherein, on the surface of this pedal several anti-slip tanks or non-slip process are set.

Wherein, this position adjustments part is an eccentric swinging arm.

Wherein, this eccentric swinging arm connects an operating parts, and this operating parts is the leader.

Wherein, have an arcuate socket on this eccentric swinging arm, this roller shaft is arranged in this arcuate socket.

Wherein, this framework has a projection, and each end of this rear roller has a spring and a tension hook, and this tension hook is enclosed within on this roller shaft, and this tension hook is connected with an end of spring, and the other end of this spring is connected with this projection.

Positive progressive effect of the present invention is: the present invention will run belt sag earlier running plate when folding, run band and can not be elongated when folding, and the band elasticity that can guarantee like this to run still keeps elasticity preferably after using time and again, be not easy breakage.

Description of drawings

Fig. 1 is the structural representation of one embodiment of the invention.

Fig. 2 is the decomposing schematic representation of back pedestal among Fig. 1.

Fig. 3 is the local enlarged diagram of Fig. 2.

Fig. 4 is for running the partial side view of plate when motion state.

Fig. 5 is the structural representation of pedal after folding.

Fig. 6 is the partial side view of pedal after folding.

Fig. 7 is the structural representation of another embodiment of the present invention after folding.

Structural representation when Fig. 8 is another embodiment of the present invention motion state.

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.

Embodiment 1

Extremely shown in Figure 6 as Fig. 1, pedestal 1, a back pedestal 2, ran and are with 3 and one rear roller 5 before treadmill of the present invention comprised one, pedestal 1 and back pedestal 2 are pivotally connected before being somebody's turn to do, this race is with 3 to be positioned at simultaneously on this preceding pedestal 1, back pedestal 2 and the rear roller 5, the left and right sides of this back pedestal 2 has a bonnet 11 and a framework 12 respectively, this bonnet 11 covers this framework 12, and the centre of this back pedestal 2 has one and runs plate 13, and this framework 12 that runs plate 13 and both sides is fixedlyed connected.Because the left and right sides of back pedestal 2 is symmetrical, below mainly a side of back pedestal 2 is described.Each framework 12 is near rear roller 5 one sides, and each framework 12 is provided with the guide 124 that positioning piece and has gathering sill 125 in the past backward successively, and it can be one to adjust fixed head 122 that this keeper is used to locate the position of rear roller 5 and its; This guide 124 is by the moving direction of gathering sill 125 control rear rollers 5, and this gathering sill 125 has a blind end and openend, and it has suitable rear roller 5 free movable shapes, such as " U " type or semi-circular etc.This treadmill also has a position adjustments part, this position adjustments part is used to regulate the position of rear roller 5, this position adjustments part can be an eccentric foot-operated arm 41, the foot-operated arm 41 of this off-centre limits by adjusting fixed head 122, the foot-operated arm 41 of this off-centre is provided with a through hole 411, distance A between the center of this through hole 411 and should off-centre foot-operated arm 41 broadsides greater than the center of through hole 411 and the foot-operated arm 41 of this off-centre grow between the limits apart from B, certainly, in order to control the action of the foot-operated arm 41 of this off-centre more easily, it can also connect an operating parts, this operating parts can be a pedal 4, and each pedal 4 is positioned at the rear end of back pedestal 2.This rear roller 5 is positioned at the rear end of back pedestal 2, and it has a roller shaft 52, and this roller shaft 52 passes the through hole 411 of eccentric foot-operated arm 41 and is clamped and connected with it, and the roller shaft 52 after the clamping inserts in the gathering sill 125.The foot-operated arm 41 of this off-centre makes between the primary importance of this roller shaft 52 in this gathering sill 125 (when adjusting fixed head 122) and a second place (when adjusting fixed head 122) mobile, when this roller shaft 52 was in this primary importance, this race was with 3 by lax; When this roller shaft 52 was in this second place, this race was with 3 to be tensioned.

Certainly, each framework 12 can also be provided with a projection 121, and the two ends of this rear roller 5 can also have a spring 51 and a tension hook 53 respectively, and this tension hook 53 is enclosed within on the roller shaft 52, this tension hook 53 is connected with an end of spring 51, and the other end of this spring 51 is connected with projection 121.

At treadmill during in motion state, as shown in Figure 4, pedal 4 is in level when the second place of roller shaft 52 in gathering sill 125 (just), because through hole 411 is far away with the distance of foot-operated arm 41 broadsides of this off-centre, this moment, eccentric foot-operated arm 41 propped up mutually with adjustment screw 123, and roller shaft 52 is positioned at opening part when spring 51 is arranged (if, then spring 51 can be stretched) of gathering sill 125, that is to say the longitudinal separation maximum between rear roller 5 and the race plate 13, run like this and be with 3 just to be tensioned.At treadmill when folding, as shown in Figure 5 and Figure 6, pedal 4 upwards turned over turn 90 degrees, pedal 4 is in plumbness when the primary importance of roller shaft 52 in gathering sill 125 (just), because the close together on the foot-operated arm of through hole 411 and this off-centre 41 long limits, so eccentric foot-operated arm 41 does not contact with adjustment screw 123, with pin pedal 4 is promoted (if when spring 51 is arranged to running plate 13, then spring 51 can spur roller shaft 52 automatically owing to having elastic force), drive the opening part of roller shaft 52 simultaneously away from gathering sill 125, prop up mutually with gathering sill 125 blind ends until roller shaft 52, just the longitudinal separation minimum between this moment rear roller 5 and race plate 13 is run and is with 3 just by lax, and then it is back pedestal 2 and preceding pedestal 1 is folding, race is with 3 just can not be elongated, thereby keeps elasticity preferably, is not easy breakage.

Certainly, the present invention can also move the position of adjusting fixed head 122 with respect to back pedestal 2 forward or backward, moves forward or backward thereby drive eccentric foot-operated arm 41, makes the position of pedal 4 and rear roller 5 produce corresponding the variation at last.And, the vertical cross-section of pedal 4 can be designed near leg-of-mutton shape, like this when regulating operation, the user just can be positioned over pin on this one of them the plate face upwards or another relative plate faces down firmly just can realize adjusting easily, more preferably, several anti-slip tanks or non-slip process can be set on the surface of this pedal 4.

Wherein, can also be provided with an adjustment part on this adjustment fixed head 122, this adjustment part can or be an adjustment bolt etc. for an adjustment screw 123, and this adjustment screw 123 can be adjusted with 3 degree of tightness state according to race; This adjustment screw 123 is positioned to be adjusted on the fixed head 122, after after this race is with 3 to use a period of time, losing part elastic force, run this moment be with 3 can not with run closely combination of plate 13, can unscrew this screw 123 this moment backward and move backward, be with 3 and run closely combination of plate 13 thereby make to run to drive rear roller 5; If after having changed new race band, because the elastic force of new race band is better, screws this screw 123 this moment forward and move forward, thereby new race band is installed easily and kept original elastic force to drive rear roller 5.

Embodiment 2

As shown in Figure 7 and Figure 8, structure and the operation principle of the structure of present embodiment and operation principle and embodiment 1 are basic identical, its main difference is: the guide 224 of present embodiment has the gathering sill 225 of a sealing, the position adjustments part of present embodiment and operating parts can be respectively an eccentric swinging arm 61 and leader 6, eccentric swinging arm 61 and leader 6 interconnect, has an arcuate socket 611 on this eccentric swinging arm 61, roller shaft 52 is arranged in this arcuate socket 611 and gathering sill 225, this eccentric swinging arm 61 is slidingly connected with roller shaft 52 by this arcuate socket 611, the keeper of present embodiment is a fixed axis 62 simultaneously, this fixed axis 62 is positioned on guide 224 or the framework 12, one end of eccentric swinging arm 61 and fixed axis 62 articulate and can be around fixed axis 62 rotations, rotation by eccentric swinging arm 61 drives moving of the roller shaft 52 that is arranged in arcuate socket 611, thus make roller shaft 52 in gathering sill 225 primary importance (shown in Figure 7) and the second place (shown in Figure 8) between mobile.

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 that a back pedestal, a rear roller and run band, this back pedestal has two frameworks that are oppositely arranged, this race band is around on this rear roller, it is characterized in that, have positioning piece and on each framework and have the guide of gathering sill, this rear roller has a roller shaft, at least one position adjustments part is connected with this roller shaft and is limited by this keeper, this position adjustments part make this roller shaft in this gathering sill a primary importance and a second place between move, when this roller shaft was in this primary importance, this ran band by lax; When this roller shaft was in this second place, this race band was tensioned.

2, treadmill as claimed in claim 1 is characterized in that, this keeper is an adjustment fixed head.

3, treadmill as claimed in claim 2 is characterized in that, this adjustment fixed head is provided with an adjustment part.

4, treadmill as claimed in claim 3 is characterized in that, this adjustment part is an adjustment screw.

5, treadmill as claimed in claim 1 is characterized in that, this keeper is a fixed axis.

6, treadmill as claimed in claim 1 is characterized in that, this position adjustments part is an eccentric foot-operated arm.

7, treadmill as claimed in claim 6 is characterized in that, the foot-operated arm of this off-centre connects an operating parts, and this operating parts is a pedal.

8, treadmill as claimed in claim 7 is characterized in that, the shape of the vertical cross-section triangularity of this pedal.

9, treadmill as claimed in claim 7 is characterized in that, several anti-slip tanks or non-slip process are set on the surface of this pedal.

10, treadmill as claimed in claim 1 is characterized in that, this position adjustments part is an eccentric swinging arm.

11, treadmill as claimed in claim 10 is characterized in that, this eccentric swinging arm connects an operating parts, and this operating parts is the leader.

12, treadmill as claimed in claim 10 is characterized in that, has an arcuate socket on this eccentric swinging arm, and this roller shaft is arranged in this arcuate socket.

13, as each described treadmill among the claim 1-12, it is characterized in that, this framework has a projection, each end of this rear roller has a spring and a tension hook, this tension hook is enclosed within on this roller shaft, this tension hook is connected with an end of spring, and the other end of this spring is connected with this projection.