TWI546102B - Elliptical machine with adjustable pedaling depth - Google Patents

Description

Elliptical machine with adjustable pedaling depth

The invention relates to a fitness equipment, in particular to an elliptical machine capable of adjusting the pedaling depth.

There is an elliptical machine (Record of the Republic of China Patent No. M431718 patent) which can adjust the pedaling depth, and comprises a frame, a flywheel set, a two-step group, two grips and a pedal lifting mechanism, and the pedal lifting mechanism comprises a a lifting frame pivotally connected to the frame and a slope adjusting device mounted on the frame and adjustable for the lifting frame, the slope adjusting device having a driving source, a driving rod and a pivoting machine a bracket between the frame and the lift frame. The pedal set has a pair of swing arms pivotally connected to the frame, and a pair of stepping rods respectively pivotally connected to the bottom ends of the swing arms, and a pair of pivoting rods respectively rotatably abut the pedals A first link of the lift frame and a pair of second links respectively pivotally connected between the first link and the flywheel set.

When the user applies a force to step on, the first connecting rod can be slid along the lifting frame, and the first connecting rod drives the flywheel to rotate to generate rotational damping, and achieve the purpose of movement.

When the driving source is activated, and the driving rod can drive the bracket to swing relative to the frame to adjust the tilt angle of the lifting frame, The pedaling depth of the pedals can be adjusted.

Although the above elliptical machine can achieve the intended purpose of use, And the pedaling depth of the pedals can be adjusted according to the needs of the use, but when the driving source passes through the driving rod, the bracket is to push the lifting frame up, due to the pedals, the first The weight of the connecting rod is applied to the lifting frames, so the load of the driving source is large, and it is relatively necessary to use a motor with a large output power and a relatively high cost, and the cost is high.

Therefore, the object of the present invention is to provide a driving load An elliptical machine that is small and can reduce the cost of pedaling.

Thus, the present invention can adjust the elbow depth of the pedaling depth, including a frame, a swing unit, a pedal unit, a damping unit, a guiding unit and an adjusting unit. The rack includes a base and a support member fixed to the base, the swing unit includes a pair of swing arms disposed on the support member and capable of reciprocatingly swinging relative to the support member, the swing arms each having a a pedaling portion pivotally connected to the supporting member and a swinging portion opposite to the pivoting portion, the pedal unit includes a pair of stepping rods respectively pivotally mounted on the swinging arms, each of the stepping rods having a pivotal connection The front end portion of the swinging portion of the corresponding swing arm and a rear end portion opposite to the front end portion, the damping unit can provide the pedals to generate the swing damping, and have at least one turn disposed on the frame through a rotating shaft a guiding unit comprising a pair of rockers pivotable relative to the frame and a pair of links pivotally connected between the rocker and the rotating wheel of the damping unit, and driving the rotating wheel of the rotating wheel, Each of the rockers has a pivoting portion, a sliding portion provided on one side of the pivoting portion and slidably abutting the pedals, and one disposed on the other side of the pivoting portion And an interlocking portion pivotally connected to the connecting rod, the adjusting unit is mounted on the frame, and the pivoting portion of the guiding unit can be driven to be displaced relative to the rotating shaft of the damping unit, and the rear end of the swing arm can be adjusted The depth of the tread.

The effect of the invention: the adjustment unit can be used to adjust the The stepping depth of the rear end portion of the stepping lever, and the pivoting portion for driving the guiding unit by the adjusting unit is displaced with respect to the rotating shaft of the damping unit, the driving load is small and the cost can be reduced.

10‧‧‧Rack

11‧‧‧Base

12‧‧‧Support

121‧‧‧ horizontal axis

122‧‧‧Extension rod

20‧‧‧Swing unit

21‧‧‧ swing arm

211‧‧‧ pivotal department

212‧‧‧ swinging department

30‧‧‧ pedal unit

31‧‧‧Steps

311‧‧‧ front end

312‧‧‧ Back end

32‧‧‧ pedal

40‧‧‧damper unit

41‧‧‧Runner

411‧‧‧ shaft

42‧‧‧Resistance

421‧‧‧Flywheel

422‧‧‧Belt

50‧‧‧Guide unit

51‧‧‧ rocker

511‧‧‧Main rod

512‧‧‧Parts

513‧‧‧ pivoting department

514‧‧‧guides

515‧‧‧ linkage department

52‧‧‧ linkage

521‧‧‧First member

522‧‧‧second pole

60‧‧‧Adjustment unit

61‧‧‧ linkages

611‧‧‧ pivotal department

612‧‧‧掣部

613‧‧ ‧ 掣

614‧‧‧Spiral sleeve

62‧‧‧Drive Group

621‧‧‧Motor

622‧‧‧ lead screw

70‧‧‧Hand unit

71‧‧‧ grip

80‧‧‧ linkage unit

81‧‧‧ pivot

82‧‧‧ linkage rod

D1‧‧‧First distance

D2‧‧‧Second distance

H1‧‧‧Small pedaling depth

H2‧‧‧Great pedaling depth

The other features and advantages of the present invention will be apparent from the detailed description of the embodiments of the present invention, wherein: FIG. 1 is a perspective view showing an embodiment of an elliptical machine capable of adjusting the pedaling depth of the present invention; 2 is a partially exploded perspective view of the above embodiment of the present invention; FIG. 3 is a schematic cross-sectional view of an adjustment unit according to the above embodiment of the present invention; FIG. 4 is a front perspective view of the above embodiment of the present invention, illustrating a linkage of a linkage A rocker of the lead unit is located at a remote position relative to a damper unit, and a guide portion of the rocker is at a low position; FIG. 5 is another front view of the above embodiment of the present invention, illustrating a pedal unit span Abutting the guiding unit and a rear end portion is located at a low position; FIG. 6 is similar to FIG. 4, illustrating that the rocking rod of the guiding unit is swung relative to a frame and the sliding portion of the rocking rod is at a high position. 7 is similar to FIG. 5, illustrating that the rear end portion of the pedal unit is at a high position; FIG. 8 is similar to FIG. 3, and is an adjustment unit of the above embodiment of the present invention. FIG. 9 is a front elevational view of the embodiment of the present invention, illustrating that the guide portion of the rocker is located at a low position after adjustment of the adjustment unit; FIG. 10 is still another front view of the above embodiment of the present invention. , the pedal unit straddles the guiding unit and the rear end portion is located at a low position; FIG. 11 is similar to FIG. 9 , illustrating that the rocking rod of the guiding unit is swivel relative to the frame and the guiding of the rocking rod The sliding portion is located at a high position; and FIG. 12 is similar to FIG. 10, illustrating that the rear end portion of the pedal unit is at a high position.

Referring to FIG. 1 and FIG. 2, an embodiment of an elliptical machine capable of adjusting the pedaling depth includes a frame 10, a swinging unit 20, a pedal unit 30, a damping unit 40, a guiding unit 50, and an adjustment. The unit 60, a handle unit 70 and a linkage unit 80.

The frame 10 includes a base 11 and a support 12 fixed to the base 11 . The support member 12 has an inverted U shape and has a horizontal axis 121 disposed at the top and an extension rod 122 located forward of the horizontal axis 121.

The swinging unit 20 includes a pair of swinging arms 21 which are disposed on the supporting member 12 and are reciprocally oscillating relative to the supporting member 12. Each of the swinging arms 21 has a hollow end which is pivotally connected to the horizontal shaft 121 and is hollow. The tubular pivoting portion 211 and a swinging portion 212 opposite to the pivoting portion 211.

The pedal unit 30 includes a pair of pedals 31 respectively pivoted on the swing arm 20 and a pair of pedals 32 respectively disposed on the pedals 31. The pedals 31 each have a pivotal connection to the corresponding swing arm 21 of the swinging portion 212 The front end portion 311 and a rear end portion 312 opposite to the front end portion 311 are provided on the rear end portion 312 of the step 31, respectively.

The damping unit 40 has a shaft disposed on the shaft through a rotating shaft 411. A runner 41 of the frame 10, and a resistance member 42 mounted to the frame 10 and providing rotational damping of the wheel 41. The runner 41 corresponds to the support member 12. The resistor member 42 has a flywheel 421 disposed on the top of the support member 12 and located below the extension rod 122, and a flywheel disposed between the runner 41 and the flywheel 421. Belt 422.

The guiding unit 50 includes a pair of wheels that are rotatable relative to the frame 10 The swinging rocker 51 and a pair of links 52 pivoted between the rocker 51 and the rotating wheel 41 of the damping unit 40 and drive the rotating wheel 41 to rotate. Each of the rockers 51 has an inverted T shape, and each has a main rod member 511, a distracting rod member 512 fixed to the middle portion of the main rod member 511 and extending upward, and a pivoting member disposed on the top of the distracting rod member 512. a portion 513, a guide portion 514 disposed on the side of the pivoting portion 513 and slidably abutting the step 31, and a pivoting portion 513 disposed on the other side of the pivoting portion 513 and pivotally connected to the connecting rod 52 The linking portion 515, the guiding portions 514 and the linking portions 515 are respectively disposed at opposite ends of the main rods 511. Each of the connecting rods 52 has a first rod member 521 fixed to the rotating shaft 411 of the damping unit 40 and a first pivoting member 515 between the first rod member 521 and the corresponding rocking portion 51 of the rocking rod 51. Two rods 522.

Referring to FIG. 3, the adjusting unit 60 is mounted on the frame 10 The pivoting portion 513 of the guiding unit 50 can be displaced relative to the rotating shaft 411 of the damping unit 40, and the stepping depth of the rear end portion 312 of the stepping lever 31 can be adjusted. The adjustment unit 60 includes a pivotally pivoted to the frame a linking member 61 of the 10 and a driving group 62 for driving the linking member 61. The linking member 61 has a pivoting portion 611 pivotally connected to the frame 10, and a side of the pivoting portion 611 is provided for a pivoting portion 612 pivotally connected to the pivoting portion 513, and a receiving portion 613 disposed on the other side of the pivoting portion 611. The receiving portion 613 is axially provided with a threaded sleeve 614, and the driving group 62 can be tilted The receiving portion 613 is displaced relative to the frame 10, and the pivoting portion 513 of the guiding unit 50 is driven to displace relative to the rotating shaft 411 of the damping unit 40. The driving group 62 has a motor 621 pivotally connected to the base 11 of the frame 10 and a lead screw 622 driven by the motor 621. The lead screw 622 is screwed with the screw sleeve 614 of the receiving portion 613.

The handle unit 70 has a pair of grips 71 that are respectively connected to the pivoting portions 211 of the swing arms 21.

The linkage unit 80 has a pivoting rod 81 pivotable relative to the support member 12 and pivoted between the two ends of the pivoting rod 81 and the pivoting portion 211. Linking rod 82.

With the elliptical machine composed of the above components, when the operator intends to perform the operation mode of the free-step and/or elliptical motion trajectory, with reference to FIG. 5 and FIG. 7, the pedal 32 and the pedal 31 are horizontally oriented by the feet. And the front end portion 311 of the stepping lever 31 pushes the swinging portion 212 of the swing arm 21, and the swing arm 21 is the horizontal axis 121 The center of rotation generates a wobble, and with the arrangement of the linkage unit 80, the stepping levers 31, the swing arms 21 and the grips 71 can be coordinated. At the same time, referring to FIG. 4 and FIG. 6 , when the stepping levers 31 alternately perform the pedaling operation, the pedals 31 are used. The runners 514 of the rocker 51 are not pressed, and the rockers 51 can be rotated by the pivoting portions 612 as the center of the swing, and the runners 41 can be rotated by the links 52. By using the wheel 41 to drive the flywheel 421 to rotate by the belt 422, the horizontal vector and the vertical vector can be damped.

In addition to the above modes of operation, when the operator intends to perform simple In the operation mode of stepping up and down, the pedals 32 and the pedals 31 are biased in the vertical direction and downward by the feet, and the pedals 32 and the pedals 31 alternately guide the sliding portions 514 of the rockers 51. A downward sway action is generated, and with the setting of the damper unit 40, the damping of the vertical vector can be generated. At this time, the swing arms 21 hardly generate a swing.

When the operator intends to perform the sliding mode, and uses the pair of feet When the pedals 32 and the pedal lever 31 are biased in the horizontal direction and forwardly, the front end portion 311 of the pedal levers 31 pushes the swinging portion 212 of the swing arm 21, and the swing arm 21 will have the horizontal axis. 121 is oscillated for the center of rotation, and with the arrangement of the linkage unit 80, the stepping levers 31, the swing arms 21 and the grips 71 can be coordinated.

Therefore, the operator can select different operating modes for the needs. For example, the operation mode of the up and down step and the front and rear elliptical motion trajectory, the slide operation mode, or the simple up and down operation mode.

Then, as shown by the solid line and the imaginary line in FIG. 6, the receiver is displayed. When the 613 is located at the right end of the lead screw 622 in FIG. 6, a pivoting portion 513 of the guiding unit 50 and a center point of the rotating shaft 411 of the damper unit 40 are formed with a first distance D1 when referring to FIG. The guide portion 514 of the rocker 51 is rotated between a low position (imaginary line of Fig. 6) and a high position (solid line of Fig. 6). In time, the lower position and the high position sliding portion 514 (or the rear end portion of the pedal, not shown in FIG. 6, see FIGS. 5 and 7) form a small stepping depth h1.

Also shown in Figure 8, with different operators or different operations When the motor 621 of the adjusting unit 60 is activated and the lead screw 622 is rotated, the lead screw 613 of the linking member 61 can be adjusted by the screwing action of the lead screw 622 and the screw sleeve 614. The lead screw 622 is displaced, and the linking member 61 is rotated with the pivoting portion 611 as a center of rotation, and the pivoting portion 612 drives the pivoting portion 513 of the guiding unit 50 relative to the damping unit 40. The rotating shaft 411 is brought closer, and the pedaling depth of the rear end portion 312 of the stepping levers 31 can be adjusted.

And the solid line and the imaginary line of Fig. 11 show the subject When the 613 is located in the middle of the lead screw 622, with reference to FIG. 8, a pivoting portion 513 of the guiding unit 50 and a center point of the rotating shaft 411 of the damping unit 40 form a second distance D2 smaller than the first distance D1. When the guide portion 514 of the rocker 51 is switched between a low position (imaginary line of FIG. 11) and a high position (solid line of FIG. 11), the low position and the guide portion 514 of the high position ( Or a rear end portion of the pedal, not shown in FIG. 11, and a larger stepping depth h2 greater than the smaller stepping depth h1 is formed between FIGS. 10 and 12). And as the receiving portion 613 is displaced toward the left end of the lead screw 622 in FIG. 11, the pedaling depth is increased. Otherwise, if the motor 621 is activated and the receiving portion 613 is turned toward FIG. When the right end of the lead screw 622 is displaced, the pedaling depth becomes smaller and smaller, and the adjustment is relatively easy.

Therefore, the stepping lever 31 can be adjusted by using the adjusting unit 60. The stepping depth of the rear end portion 312, and the pivoting portion 513 of the guiding unit 50 driven by the adjusting unit 60 is horizontally displaced with respect to the rotating shaft 411 of the damping unit 40, and does not need to bear the load of the pedal unit 40 or other members. The motor 621 drives the load to be small and can reduce the cost, and the adjustment operation is also quite easy, and the object of the present invention can be achieved.

It is worth mentioning that the adjustment unit of the above embodiment of the present invention The two guiding units 50 can be driven simultaneously by a linking member 61 and a driving group 62. Of course, the adjusting unit 60 can be provided with two linking members 61 and two driving groups 62, and the linking members 61 can be used with the linking members 61. The cooperation of the driving groups 62 drives the two guiding units 50 respectively, and the desired adjustment effect (not shown) can also be achieved.

However, the above is only an embodiment of the present invention, when The scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the present invention in the scope of the invention and the patent specification are still within the scope of the invention.

10‧‧‧Rack

11‧‧‧Base

12‧‧‧Support

121‧‧‧ horizontal axis

122‧‧‧Extension rod

20‧‧‧Swing unit

21‧‧‧ swing arm

211‧‧‧ pivotal department

212‧‧‧ swinging department

30‧‧‧ pedal unit

31‧‧‧Steps

311‧‧‧ front end

312‧‧‧ Back end

32‧‧‧ pedal

40‧‧‧damper unit

41‧‧‧Runner

411‧‧‧ shaft

42‧‧‧Resistance

421‧‧‧Flywheel

422‧‧‧Belt

50‧‧‧Guide unit

51‧‧‧ rocker

511‧‧‧Main rod

512‧‧‧Parts

513‧‧‧ pivoting department

514‧‧‧guides

515‧‧‧ linkage department

52‧‧‧ linkage

521‧‧‧First member

522‧‧‧second pole

60‧‧‧Adjustment unit

61‧‧‧ linkages

611‧‧‧ pivotal department

612‧‧‧掣部

613‧‧ ‧ 掣

614‧‧‧Spiral sleeve

62‧‧‧Drive Group

621‧‧‧Motor

622‧‧‧ lead screw

70‧‧‧Hand unit

71‧‧‧ grip

80‧‧‧ linkage unit

81‧‧‧ pivot

82‧‧‧ linkage rod

Claims (8)

An elliptical machine capable of adjusting a stepping depth includes: a frame including a base and a support fixed to the base; a swing unit including a pair of shafts disposed on the support and movable relative to the support a swinging arm that reciprocates, each of the swing arms has a pivoting portion pivotally connected to the supporting member and a swinging portion opposite to the pivoting portion; a pedal unit including a pair of pivot arms respectively disposed on the swing arm a stepping rod, each of the stepping rods having a front end portion pivotally connected to the corresponding swinging portion and a rear end portion opposite to the front end portion; a damping unit for providing the pedals to generate swing damping, and at least a steering wheel disposed on the frame through a rotating shaft; a guiding unit comprising a pair of rockers pivotable relative to the frame and a pair of wheels pivotally coupled to the rocker and the damping unit And a link that can drive the rotation of the rotating wheel, each of the rockers has a pivoting portion, a guiding portion disposed on one side of the pivoting portion and slidably abutting the pedals, and a An interlocking portion disposed on the other side of the pivoting portion and pivotally connected to the connecting rod; and an adjusting unit mounted on Chassis, the pivot portion may drive the guide unit with respect to the rotational axis of the damping unit is displaced, and adjust the depth of the depression of the rear end portion of such foot bar. The elliptical machine of the adjustable stepping depth according to claim 1, wherein the adjusting unit comprises at least one linking member pivotally pivotally connected to the frame and at least one driving group capable of driving the linking member, the linkage The device has a pivoting portion pivoted to the frame, a tilting portion disposed on one side of the pivoting portion and pivotally connected to the pivoting portion, and a receiving portion disposed on the other side of the pivoting portion掣 The driving group can move the receiving portion to be displaced relative to the frame, and the driving portion drives the pivoting portion of the guiding unit to be displaced relative to the rotating shaft of the damping unit. The elliptical machine of the adjustable stepping depth according to claim 2, wherein the driving unit of the adjusting unit has a motor mounted to the frame and a lead screw driven by the motor, the lead screw and the receiving portion Phase screwing. The elliptical machine of the adjustable pedaling depth according to any one of claims 1 to 3, wherein the connecting rods of the guiding unit each have a first rod fixed to a rotating shaft of the damping unit And a second rod pivotally connected between the first rod and the linkage of the rockers. The elliptical machine of the adjustable stepping depth according to claim 1, further comprising a handle unit and a linkage unit, the handle unit having a pair of grips respectively connected to the pivoting portions of the swing arms, the linkage unit having a A pivoting lever and a pair of interlocking rods pivotally connected between the two ends of the pivoting rod and the pivoting portions may be generated with respect to the support member. The elliptical machine of the adjustable pedaling depth according to claim 1, wherein the resistance component of the damping unit is a flywheel shafted on the top of the support member, the damping unit further has a winding wheel and the resistance component Drive belt between. The elliptical machine of the adjustable pedaling depth according to claim 1, wherein a pivoting portion of the guiding unit and a center point of the rotating shaft of the damping unit form a first distance, when the guiding portion of the rocker When switching between a low position and a high position, a small stepping depth is formed between the low position and the sliding portion of the high position. The elliptical machine of the adjustable pedaling depth according to claim 7, wherein a pivoting portion of the guiding unit and a center point of the rotating shaft of the damping unit form a second distance smaller than the first distance, when When the guide portion of the rocker is switched between a low position and a high position, a large stepping depth greater than the smaller stepping depth is formed between the low position and the high position guide portion.