TWM544341U - Elliptical trainer for adjustable stride span - Google Patents

Description

Adjustable span elliptical machine

The present invention relates to an elliptical machine, and more particularly to an elliptical machine with adjustable span.

As shown in FIG. 1 , a conventional front wheel type elliptical machine 1 includes a base 11 , a flywheel set 12 disposed on a front side of the base 11 , a console 13 disposed above the flywheel set 12 , and a setting a track base 14 disposed at the rear of the base 11, a transmission rod 15 disposed between the flywheel assembly 12 and the rail base 14, and two pedal levers 16 respectively pivotally connected to the transmission rods 15, and two fixed to the pedal rods 16, respectively The pedals 17 on the rear side of the pedal lever 16. One end of each of the transmission rods 15 is pivotally disposed on the flywheel assembly 12, and the other end portion is slidably disposed on the rail base 14 by a roller 18.

When the user steps on the pedals 17, the transmission rods 15 move back and forth along the track base 14 through the rollers 18, however, the rollers 18 often rub against the track base 14 during rolling to generate noise. It is necessary to apply lubricating fluid frequently to reduce noise. The rail seat 14 is easy to accumulate dust and dirt when used for a long time, and the maintenance is not easy, so that the user can easily feel the pedal 17 beating during the subsequent use, which affects the use. The comfort level also reduces the service life of the front roller elliptical machine 1.

As shown in FIG. 2, a conventional rear suspension elliptical machine 2 includes a base 21, a console 22 disposed in front of the base 21, a flywheel set 23 disposed at the rear of the base 21, and two The foot levers 24 pivotally connected to the flywheel group 23 and the foot pedals 25 are respectively fixed to the foot pedals 25 of the footrests 24 .

Since the rear suspension type elliptical machine 2 does not use the roller and the sliding seat, it can avoid the situation that the use of the card dust affects the comfort of use, and the service life is also long. However, since the flywheel group 23 is disposed at the rear of the base 21, and the volume occupied by the console 22 is added, the overall length of the machine platform is too long, which is easy to occupy space, and further, since the user needs to be from the base 21 It is inconvenient to use the pedals 25 on both the left and right sides.

Therefore, the object of the present invention is to provide an elliptical machine with a long service life, no space occupation and adjustable span.

Thus, the elliptical machine of the novel adjustable span comprises a frame unit, a resistance unit, and a two-link unit.

The resistance unit comprises two cranks pivoted to the frame unit, a resistance member pivoted to the frame unit, and a transmission mechanism disposed on the frame unit. The cranks drive the resistance member via the transmission mechanism.

Each linkage unit includes a rocker pivoted to the frame unit, a pedal pivoted to a bottom side of the rocker, and a first connection between the rocker and one of the cranks. a rod, and a second link pivotally disposed between the crank and the pedal, the first link has a pivoting end, and the pivoting end is movably pivotally coupled to the rocker.

The function of the novel is that the linkage unit is pivotally connected to the frame unit in a suspended manner, and there is no noise generated by rolling, and no lubricating fluid is needed, so that it is difficult to accumulate dust and avoid rolling discomfort. The service life of the machine can be increased. In addition, the resistance unit is disposed on the front side of the frame unit, which can reduce the length of the whole machine, and does not occupy space. In addition, the user can directly step on the machine when the user operates. It is more convenient to use without crossing the machine from the side. Further, the user can change the linkage position of the first link of the linkage unit and the pivoting position of the hand lever to change the linkage. The movement trajectory of the unit achieves the purpose of adjusting the step span.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

As shown in FIGS. 3, 4 and 5, a first embodiment of the elliptical machine of the novel adjustable span comprises a frame unit 3, a resistance unit 4, a second linkage unit 5, and a console 6.

The rack unit 3 includes a chassis 31, a stand 32 extending upward from the chassis 31, and a casing 33 disposed on the stand 32. The stand 32 has a main rod section 321 connected to the chassis 31, and two side rod sections 322 connected to the main rod section 321 .

The resistance unit 4 is disposed on the vertical frame 32 and is located in front of the main pole section 321 . The resistance unit 4 includes a crank 41 coaxially disposed on the side rod section 322 of the vertical frame 32 , and is pivoted on the vertical frame. The resistance member 42 of the main rod section 321 of 32, and a transmission mechanism 43 provided on the vertical frame 32. The transmission mechanism 43 has a pulley 431 coaxially disposed with the cranks 41, and a belt 432 disposed between the pulley 431 and the resistance member 42. The resistance unit 4 provides the resistance when the pedal is depressed, and the user can adjust the difficulty of the step according to the needs of the user. However, the conventional techniques commonly used in the industry are not described herein.

Each of the linkage units 5 includes a rocker 51 pivoted on the vertical frame 32 of the frame unit 3, a stepped lever 52 pivoted to the bottom side of the rocker 51, and a pivoting lever 51. A first link 53 with one of the cranks 41, a second link 54 pivoted between the one of the cranks 41 and the step 52, and a pedal 55 disposed on the step 52. The rocker 51 has a link segment 511, a grip portion 512 connected to the top side of the link segment 511, an upper pivot portion 513 pivotally connected to the stand 32, and a step 52 The pivoted lower pivoting portion 514. The connecting rod segment 511 is located between the upper pivoting portion 513 and the lower pivoting portion 514. The connecting rod segment 511 has a pivoting slot 515. The pivoting slot 515 has three spaced apart pivoting portions 516. . The stepping lever 52 has a front end portion 521 for pivoting the second connecting rod 54, a rear end portion 522 for the pedal 55, and a front end portion 521 and the rear end portion 522. The middle portion 523 pivotally connected to the hand lever 51. The first link 53 has a pivoting end 531 adjacent to the rocker 51. The pivoting end 531 can be positioned at one of the pivoting portions 516.

The console 6 is disposed on the stand 32 and electrically connected to the resistance unit 4, and the user can adjust the resistance when the resistance member 42 rotates by the console 6.

As shown in Figures 4, 6, and 7, when in use, the user climbs the pedals 55 from the rear of the chassis 31, and holds the hand grips 512 of the hand levers 51 with both hands, by stepping on them. The pedal 55 provides a kinetic energy of the pedals 52, and the levers 52 are used to drive the hand levers 51 and the second links 54. The second links 54 can drive the cranks 41 to rotate. When the crank 41 rotates, the pulley 431 is driven, and the resistance member 42 is rotated by the belt 432, so that the user feels the resistance when stepping on, and the first link 53 interlocks the hand lever 51. With the second link 54, the stroke of the pedals 55 can be changed by adjusting the positions at which the first links 53 are pivotally connected to the hand levers 51. When the pivoting end 531 of the first link 53 is positioned at the pivoting portion 516 at the uppermost portion of the pivoting slot 515, the center of the pedal 55 can be moved along an elliptical trajectory T1 (see FIG. 6). ). When the pivoting ends 531 of the first links 53 are positioned at the pivoting portions 516 at the bottom of the pivoting slots 515, the centers of the pedals 55 can be moved along the other elliptical trajectory T2 (see FIG. 7). The trajectory T1 has a long stroke, which can lengthen the span of the user's feet, thereby increasing the amount of exercise, and the trajectory of the trajectory T2 is shorter, and the user's feet are shorter, which is suitable for a small or no body. Users with more exercise.

As shown in FIG. 8, a second embodiment of the elliptical machine of the novel adjustable span is similar to the first embodiment. The main difference is that the resistance unit 4 is located in the main pole section 321 of the stand 32. rear. In this embodiment, the resistance unit 4 is closer to the position when the user operates, so that the length of the overall machine is shorter and less space is occupied.

Through the above description, the advantages of the new model are summarized as follows:

1. The interlocking units 5 are all disposed in the rack unit 3 in a pivotal manner. Compared with the conventional front wheel type elliptical machine 1 (see FIG. 1), the present invention does not have any operation during operation. The noise and discomfort caused by rolling do not need to be applied with lubricating fluid to reduce the noise of the machine. Therefore, it is not easy to accumulate dust and increase the service life of the machine.

2. By arranging the resistance unit 4 on the front side of the frame unit 3, the length of the overall machine can be reduced, and no space is occupied, and the user can board the pedals from the rear of the chassis 31. 55. Compared with the conventional rear suspension type elliptical machine 2 (see Fig. 2), it has the advantage of being convenient to operate.

3. By adjusting the pivotal positions of the pivotal ends 531 of the first links 53 and the hand levers 51, the travel trajectories of the pedals 55 can be further changed, and the spans of the pedals 55 can be changed. The user can change according to his or her body shape or the required exercise difficulty, which is more convenient to use.

In summary, the elliptical machine of the novel adjustable span has a longer service life, no space occupation, more comfortable and convenient use, and thus can achieve the purpose of the novel.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

3‧‧‧Rack unit
31‧‧‧ Chassis
32‧‧‧ stand
321‧‧‧ main section
322‧‧‧ Side section
33‧‧‧ Shell
4‧‧‧resistance unit
41‧‧‧ crank
42‧‧‧Resistance
43‧‧‧Transmission mechanism
431‧‧‧ Pulley
432‧‧‧Belt
5‧‧‧ linkage unit
51‧‧‧Hand rocker
511‧‧‧ connecting rod section
512‧‧‧Hand grip
513‧‧‧Upper pivot
514‧‧‧ lower pivotal
515‧‧‧ pivot slot
516‧‧‧ pivotal department
52‧‧‧Steps
521‧‧‧ front end
522‧‧‧ back end
523‧‧ mid-section
53‧‧‧First connecting rod
531‧‧‧ pivot end
54‧‧‧second connecting rod
55‧‧‧ pedal
6‧‧‧ console
T1‧‧‧ track
T2‧‧‧ track

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a side view of a conventional front roller elliptical machine; Figure 2 is a conventional rear suspension Figure 3 is a perspective view of a first embodiment of the elliptical machine of the present invention; Figure 4 is an exploded perspective view of the first embodiment; 5 is a partial enlarged view of FIG. 4; FIG. 6 is a side view of the first embodiment, illustrating a trajectory when the pedal span of the second interlocking unit is at a maximum; FIG. 7 is a view similar to FIG. A trajectory when the pedal span of the interlocking unit is at a minimum; and FIG. 8 is a side view of a second embodiment of the elliptical machine of the novel adjustable span.

3‧‧‧Rack unit

31‧‧‧ Chassis

32‧‧‧ stand

321‧‧‧ main section

33‧‧‧ Shell

4‧‧‧resistance unit

5‧‧‧ linkage unit

51‧‧‧Hand rocker

511‧‧‧ connecting rod section

512‧‧‧Hand grip

513‧‧‧Upper pivot

514‧‧‧ lower pivotal

515‧‧‧ pivot slot

52‧‧‧Steps

521‧‧‧ front end

522‧‧‧ back end

523‧‧ mid-section

53‧‧‧First connecting rod

531‧‧‧ pivot end

54‧‧‧second connecting rod

55‧‧‧ pedal

6‧‧‧ console

Claims (8)

An elliptical machine capable of adjusting a span, comprising: a rack unit; a resistance unit comprising: a crank pivoted to the rack unit, a resistance member pivoted to the rack unit, and a device disposed on the machine The transmission mechanism of the frame unit, the cranks drive the resistance member via the transmission mechanism; and the two linkage units, each linkage unit includes a hand lever pivoted to the frame unit, and a pivoting rod bottom a side strut, a first link pivoted between the crank bar and one of the cranks, and a second link pivotally disposed between the crank and the step bar, the first link The lever has a pivot end that is movably pivotally coupled to the rocker. The elliptical machine of the adjustable span according to claim 1, wherein the rack unit comprises a chassis, and a vertical frame extending upward from the chassis, wherein the rocker of each linkage unit is pivoted a stand having a link segment and a grip portion connected to a top side of the link segment, the link segment having a pivot slot, the pivot slot having a plurality of spaced apart pivots The connecting portion of the first connecting rod can be positioned at one of the pivoting portions. The elliptical machine of the adjustable span according to claim 2, wherein the rocker of each linkage unit further has an upper pivoting portion pivotally connected to the vertical frame, and a pivotal connection with the pedal a lower pivoting portion, the connecting rod segment being located between the upper pivoting portion and the lower pivoting portion. The elliptical machine of the adjustable span according to claim 3, wherein the stepping rod of each linkage unit has a front end portion for pivoting the second link, a rear end portion, and a front end portion A middle portion of the rear end portion for pivoting the hand lever. The elliptical machine of the adjustable span according to claim 4, wherein each of the linkage units further includes a pedal disposed at a rear end portion of the pedal. The elliptical machine of the adjustable span according to claim 1, wherein the transmission mechanism has a pulley pivotally disposed coaxially with the cranks, and a set of belts disposed between the pulley and the resistance member. The elliptical machine of the adjustable span according to claim 2, wherein the stand has a main pole section connected to the chassis, and two side pole sections connected to the main pole section, the resistance unit is located The front of the main pole section. The elliptical machine of the adjustable span according to claim 2, wherein the stand has a main pole section connected to the chassis, and two side pole sections connected to the main pole section, the resistance unit is located Behind the main pole section.