TWI535474B - Elliptical motion machine with connecting rod timing adjustment component - Google Patents

Description

Elliptical exercise machine with link timing adjustment assembly

The invention relates to an elliptical motion machine with a link type timing adjustment component. The principle of the quick return mechanism enables the stepping portion of the elliptical motion machine pedal to generate a speed difference of different speeds in the spanning stroke and the supporting stroke. And the phase difference, the legs do not have to cross to the maximum when the leg support, to be closer to the trajectory of human walking and jogging, reducing the possibility of motion damage caused by improper force.

Running is one of the most common leisure sports, but the shortcoming of running the sport is that the moment the foot touches the ground, the knee will be subjected to a certain impact force, and long-term accumulation will cause knee damage. To this end, there are currently elliptical machines, steppers and other fitness equipment, which use movable pedals to guide the user's feet to move over the trajectory similar to the actual running, to avoid injury to the knee during the movement.

Among them, the elliptical exercise machine, for example, the new patent of the Republic of China M431718 "Pedal lift mechanism of the elliptical machine", please refer to the sixth figure, which mainly includes: a body (A1), a pair of link sets (A2), a pair a step (A3) and a lift frame (A4), wherein the crank (A21) and the swing arm (A22) of the link set (A2) are pivotally connected to the body (A1), and the pair is stepped The rods (A3) are respectively pivotally connected to the swing arm (A22) and the connecting rod (A23) to drive the swing arm (A22) to swing while driving the crank (A21) of the link set (A2) to drive the aforementioned joint The lever (A23) is relatively slipped, and the pedal (A31) of the pedal (A3) is pulled by the crank (A21) to swing to form a motion stroke of an approximately elliptical trajectory, the motion stroke including a support stroke and the continuation of the support stroke One of the crossings. The lift (A4) adjusts the angle to change the angle of the pedal (A31) of the pedal (A3).

However, there are still some shortcomings in the above-mentioned previous cases to be improved. The main reason is that the crank phase difference between the left and right sides of the elliptical motion machine is 180 degrees. Therefore, when the forefoot foot starts to support at the forefront, the hind foot is at the rear. That is, the support stroke (E1) and the span stroke (E2) of the motion stroke (E) are approximately equal (as shown in the seventh diagram). However, the actual jogging track is when the forefoot foot starts to support at the foremost position, and the hind foot has not yet reached the last side of the gait track. Instead, it starts to lift the leg backwards and rises to the last side of the gait track before moving forward ( As shown in the eighth figure, the support stroke (F1) of the motion stroke (F) trajectory is relatively smaller than the span stroke (F2), so that the current elliptical motion machine timing is not ergonomic.

When using the existing elliptical exercise machine, the user needs to make the footsteps match the gait trajectory timing of the elliptical exercise machine, and the feet often need to cross the leg to support the leg support, which is easy to add the influence of the improper pedaling angle. Causes muscle soreness in the feet and long-term cumulative sports injuries.

Therefore, the shortcomings of the existing design of the foot trajectory are improved, and the elliptical exercise machine is more ergonomic to enhance the effect of exercise and fitness. The present inventors have made an effort to study and propose an elliptical exercise machine with a link type timing adjustment component. The utility model comprises: a body; the two link groups each comprise a connecting rod, a crank, a rocker and a stepping rod, wherein the connecting rod has a displacement portion displaceably disposed on the body, the crank ends respectively Connecting the body and the connecting rod to displace the displacement portion of the connecting rod along the main body, the rocking rod pivotally connecting the main body, the stepping rod respectively pivotally connecting the connecting rod and the rocking rod, so that the stepping rod is respectively received by the rod The rocker and the connecting rod are oscillated along a supporting stroke and connecting one of the supporting strokes to form a closed motion stroke; a trajectory timing adjusting component comprising a timing adjusting wheel and two rotating parts Connecting the crank and the two connecting rods, the timing adjusting wheel and the rotating member are pivotally disposed on the body, and the timing adjusting wheel and the rotating member have a spacing in the radial direction of the axis of the body, each The connecting rods are respectively pivotally connected to the When adjusting wheels and In the rotating member, the length of the connecting rod is greater than the spacing, so that when one of the stepping rods is in the supporting stroke, the rotating adjusting member drives the timing adjusting wheel by one of the rotating rods, and the timing adjusting wheel is used The axis rotates, and the timing adjustment wheel drives another pedal to the span by another connecting rod and another rotating member.

Further, the body has a sliding seat for guiding the displacement portion of the connecting rod to be displaced along the sliding seat.

Further, the timing adjustment wheel includes a first side, a second side, and a pivotal connection between the first side and the second side to define a swing space between the first side and the second side, The pivoting system is erected on the body, and one of the connecting rods is pivotally connected to the first side, and the other connecting rod is pivotally connected to the second side, and the pivotal positions of the two connecting rods are symmetric. .

The effect of the invention is:

1. In this case, the principle of the rushback mechanism is used to make the pedals of the pedals on both sides of the elliptical exerciser have a speed difference of different speeds in the spanning stroke and the supporting stroke, so as to be closer to the human gait and reduce the user's exertion. The possibility of injury caused by improper exercise.

2. In this case, the principle of the emergency return mechanism is used to make the pedal of the elliptical exercise machine change from the spanning stroke to the supporting stroke before the support stroke is turned to the spanning stroke, so that the legs do not need to cross At the maximum pace position, the foot support can be changed to avoid improper stretching of the muscles of the legs and the muscles of the feet are sore, so that the movement stroke of the pedals on both sides of the case is more ergonomic.

(1) ‧‧‧ Ontology

(11)‧‧‧Base

(12)‧‧‧ Stands

(121)‧‧‧First support frame

(1210)‧‧‧ Axis pivot

(122)‧‧‧second support frame

(1220)‧‧‧ Axis pivot

(13)‧‧‧Slide

(2A) (2B) ‧‧‧ linkage group

(21A) (21B) ‧ ‧ crank

(22A) (22B) ‧‧‧ Connecting rod

(221A) ‧‧ ‧ Displacement Department

(23A) (23B) ‧‧‧ rocker

(231A) ‧‧‧ grip

(232A) ‧ ‧ first pivot

(233A) ‧‧‧Second pivot

(24A)(24B)‧‧‧

(241A) (241B)‧‧‧Treading

(3) ‧‧‧Track Timing Adjustment Components

(31) ‧‧‧ Timing adjustment wheel

(31A) ‧‧‧ first side

(31B) ‧‧‧ second side

(311)‧‧‧ shaft

(32A) (32B) ‧ ‧ rotating parts

(33A) (33B) ‧‧‧ Connecting rod

(331) (332) ‧‧ ‧ pivotal

(C)(E)(F)‧‧‧Sports

(C1) (E1) (F1) ‧ ‧ support stroke

(C2) (E2) (F2) ‧ ‧ traverse stroke

(S1) ‧ ‧ first end

(S2) ‧ ‧ second end

(S3) ‧ ‧ third end

(D) ‧‧‧ spacing

(H1)‧‧‧First interval

(H2) ‧ ‧ second interval

(H3)‧‧‧Swing space

(R1)‧‧‧First radius of gyration

(R2)‧‧‧second radius of gyration

[First Figure] is a schematic plan view of an embodiment of the present invention.

[Second figure] is a front view of an embodiment of the present invention.

[Third Figure] is an enlarged schematic view of the trajectory timing adjustment component of the first embodiment of the present invention.

[Fourth figure] is a schematic view of the action used in the embodiment of the present invention.

[Fifth Figure] is an enlarged schematic view of the trajectory timing adjustment component of the fourth embodiment of the present invention.

[Sixth image] is a side view of a conventional elliptical exercise machine.

[Seventh figure] is a schematic diagram of the timing of the motion path of the conventional elliptical exercise machine.

[Eight image] is a schematic diagram of the timing of the motion path of a human normal gait.

In view of the above technical features, the main effects of the elliptical exercise machine of the present invention with the link type timing adjustment assembly will be clearly shown in the following embodiments.

Referring to the first figure and the second figure, an elliptical exercise machine with a link type timing adjustment component according to an embodiment of the present invention is disclosed, which comprises: a body (1), a two-link group (2A) (2B) and a Track timing adjustment component (3), where: The body (1) comprises a base (11), a stand (12) and a slide (13), the stand (12) comprising a pair of first support frames (121) and a second support frame (122) Between the pair of first support frames (121), and between the pivots (1210) of the pair of first support frames (121) and the pivots (1220) of the second support frame (122) (D) ) (as shown in the third figure).

The two link groups (2A) (2B) each include a crank (21A) (21B), a link (22A) (22B), a rocker (23A) (23B) and a pedal (24A) (24B). ).

Taking the left link group as an illustration, the crank (21A) is pivotally connected to the first support frame (121) of the neutral frame (12) of the body (1), and one end of the link (22A) is pivotally connected to the crank (21A). The other end of the connecting rod (22A) is a displacement portion (221A) for displaceably being disposed on the sliding seat (13) of the body (1). Best is, The displacement portion (221A) is a roller or a slider and is moved by the guide (13) of the body (1).

The rocker (23A) has a grip portion (231A), a first pivot portion (232A) and a second pivot portion (233A) located at the grip portion (231A) and the first pivot portion (232A). The second pivot portion (233A) is pivotally disposed on the frame (12) of the body (1), and the first pivot portion (232A) is pivotally connected to the step bar (24A).

The stepping bar (24A) has a stepping portion (241A), and the stepping bar (24A) pivotally connects the connecting rod (22A) and the rocker (23A) respectively to pull the stepping portion of the stepping bar (24A) ( 241A), swinging along a support stroke (C1) and connecting one of the support strokes (C1) across the stroke (C2) to form a closed one motion stroke (C).

The trajectory timing adjustment component (3) includes a timing adjustment wheel (31), two rotating members (32A) (32B) fixed to the crank (21A) (21B), and two connecting rods (33A) (33B), The timing adjustment wheel (31) and the rotating member (32A) (32B) are pivoted on the body (1).

In detail, the timing adjustment wheel (31) is pivotally mounted on the second support frame (122) of the body (1), and the rotating member (32A) (32B) is pivoted at one end to the body (1). a first support frame (121) having a radial distance (D) between the pivot (1210) of the first support frame (121) and the pivot (1220) of the second support frame (122) ( As shown in the third figure).

Each connecting rod (33A) (33B) is respectively pivotally connected to the timing adjusting wheel (31) and the rotating member (32A) (32B), and the length of the connecting rod (33A) (33B) is greater than the spacing (D) ), when one of the stepping levers (24A) is at the supporting stroke (C1), the timing adjusting wheel (31) is driven by one of the rotating members (32A) by one of the connecting rods (33A), so that the positive The adjustment wheel (31) rotates with its own axis, the timing adjustment wheel (31) And another strut (24B) is driven to the spanning stroke (C2) by another connecting rod (33B) and another rotating member (32B).

Referring to the second figure, the timing adjustment wheel (31) preferably includes a first side (31A), a second side (31B) and a shaft (311) connected to the first side (31A). And the second side (31B) to define a swivel space (H3) between the first side (31A) and the second side (31B), the shaft (311) of the timing adjusting wheel (31) The second support frame (122) of the main frame (1) of the main body (1) is erected, and one of the connecting rods (33A) is pivotally connected to the first side (31A), and the other connecting rod (33B) Is pivotally connected to the second side (31B), and the pivotal position of the two connecting rods (33A) (33B) is symmetrical with the axis of the timing adjusting wheel (31), which is 180 degrees apart, thereby allowing the aforementioned The connecting rod (33A) (33B) can share the same timing adjusting wheel (31).

In addition, a first interval (H1) is defined between the first side (31A) of the timing adjusting wheel (31) and one of the first supporting frames (121), and the second side of the timing adjusting wheel (31) is 31B) is defined with a second space (H2) between the other first support frame (121), wherein a rotating member (32A) and one of the connecting rods (33A) are at the first interval (H1), and The other rotating member (32B) and the other connecting rod (33B) are located at the second interval (H2), and the crank (21A) (21B) is located outside the stand (12), the rotating member (32A) (32B) respectively fix the crank (21A) (21B) with a shaft and coaxially pivot the first support frame (121) of the stand (12).

In the case of use, please refer to the first figure. When the user steps down the stepping portion (241A) of the pedal (24A), the pedal (24A) will drive the crank (21A) via the connecting rod (22A). Rotating and rolling the roller of the displacement portion (221A) in the link (22A) on the slide (13) of the body (1) while the step (24A) drives the rocker (23A), thus Traction pedal (24A) via the connecting rod (22A) and rocker (23A) The tread portion (241A) is moved from the first end (S1) to the second end (S2) to form an arcuate support stroke (C1) (as shown in the fourth figure).

Referring to the third figure, at this time, since the crank (21A) is fixed to the rotating member (32A), the crank (21A) drives the rotating member (32A) to rotate, and the connecting member (32A) drives the connection. Rod (33A). The pivoting portion (331) (332) at both ends of the connecting rod (33A) pivotally connects the rotating member (32A) and the timing adjusting wheel (31), respectively, and the pivoting portion of the connecting rod (33A) (331) Between the axis of rotation of the rotating member (32A) has a first radius of gyration (R1), between the pivoting portion (332) of the connecting rod (33A) and the axis of the timing adjusting wheel (31) Having a second radius of gyration (R2), and the distance between the two pivoting portions (331) (332) of the connecting rod (33A), the first radius of gyration (R1), and the second radius of gyration (R2) are greater than The aforementioned spacing (D).

Thereby, when the user steps down one of the aforementioned stepping bars (24A), one of the aforementioned stepping bars (24A) will drive the crank (21A) and the rotating member (32A) against the axis of the crank (21A). When the hour hand rotates, the pedal portion (241A) of the pedal (24A) is displaced by the link (22A) and the rocker (23A) from the first end (S1) to the second end (S2) to form an arc shape. Supporting stroke (C1), the rotating member (32A) and one of the connecting rods (33A) driving the timing adjusting wheel (31) to rotate counterclockwise with the axis of the timing adjusting wheel (31), at this time, Since one of the aforementioned connecting rods (33A) slides counterclockwise to the lower left side above the timing adjusting wheel (31) and the rotating member (32A), the rotating speed of the rotating member (32A) will be relatively smaller than the timing adjusting wheel. (31) The speed. At this time, the timing adjustment wheel (31) is rotated by the other connecting rod (33B) to drive the other rotating member (32B), so that the rotation speed of the other rotating member (32B) and the crank (21B) is relatively larger than the rotation speed. The rotation speed of the timing adjusting wheel (31) causes the two rotating members (32A) (32B) to generate a speed difference of different speeds to accelerate the stepping portion (241B) of the other stepping lever (24B) in the spanning stroke (C2). Speed of movement; Continue to refer to the first, third, fourth and fifth figures, and then the pedal (241A) of the pedal (24A) will be pulled by the connecting rod (22A) and the rocker (23A) from the second end. (S2) is displaced to the first end (S1) via the spanning stroke (C2). At this time, the connecting rod (33A) slides counterclockwise upward at the lower left of the timing adjusting wheel (31) and the rotating member (32A). Therefore, the rotational speed of the rotating member (32A) is relatively larger than the rotational speed of the timing adjusting wheel (31), and the timing adjusting wheel (31) is rotated by the other connecting rod (33B) to drive the other rotating member (32B). The rotational speed of the other rotating member (32B) and the crank (21B) will be relatively smaller than the rotational speed of the timing adjusting wheel (31). By the principle of the quick return mechanism, the stepping portion (241A) of the pedal (24A) generates a speed difference of different speeds in the spanning stroke (C2) and the supporting stroke (C1), that is, speeding up the moving speed of the spanning stroke (C2), Reduce the movement speed of the support stroke (C1), so that the feet do not need to cross the maximum step position to change the foot support, to avoid improper stretching of the muscles of the legs and cause muscle pain in the feet, so that the tread (241A) movement stroke ( C) Timing is more ergonomic.

Please refer to the first figure, the third figure, the fourth figure and the fifth figure. The following will further describe the quick return mechanism of the phase difference in this case, and take the left link group and the left track timing adjustment component as an example to illustrate When the step (241A) of the lever (24A) is in the support stroke (C1), the timing adjustment wheel (31) is rotated counterclockwise by 180 degrees (from P1 to P2), and the aforementioned rotating member (32A) and crank (21A) are not yet Rotating 180 degrees (from Q1 to Q2, that is, α β < 180 degrees), so the stepping portion (241A) of the aforementioned pedal (24A) has not reached the third end (S3) at the end of the motion stroke (C), but arrives The second end (S2) before the third end (S3). Therefore, when the stepping portion (241A) of the pedal (24A) is at the supporting stroke (C1), the rotational speed of the rotating member (32A) and the crank (21A) is relatively smaller than the rotational speed of the timing adjusting wheel (31), so that the user Before the step of the leg, the other leg reaches the first end of the foremost end (S1), and the The gait trajectory of ordinary people jogging is consistent, ergonomic, avoiding the foot support when the feet reach the maximum, reducing the sports injuries caused by improper exertion of the feet.

It should be added that P1 in the third and fifth figures is the extension line of the center of the timing adjustment wheel (31) through the pivoting portion (332), and P2 is the timing adjustment wheel (31) after the rotation. The center of the circle passes through the extension line of the pivoting portion (332), Q1 is an extension line of the pre-rotation crank (21A), Q2 is an extension line of the rotating crank (21A), and α is Q1 and the first support frame (121) The angle difference between the two is β, which is the angular difference between Q2 and the first support frame (121).

In view of the foregoing description of the embodiments, the operation and the use of the present invention and the effects of the present invention are fully understood, but the above described embodiments are merely preferred embodiments of the present invention, and the invention may not be limited thereto. Included within the scope of the present invention are the scope of the present invention.

(1) ‧‧‧ Ontology

(11)‧‧‧Base

(12)‧‧‧ Stands

(121)‧‧‧First support frame

(122)‧‧‧second support frame

(13)‧‧‧Slide

(2A) (2B) ‧‧‧ linkage group

(21A) (21B) ‧ ‧ crank

(22A) (22B) ‧‧‧ Connecting rod

(221A) ‧‧ ‧ Displacement Department

(23A) (23B) ‧‧‧ rocker

(231A) ‧‧‧ grip

(232A) ‧ ‧ first pivot

(233A) ‧‧‧Second pivot

(24A)(24B)‧‧‧

(241A) (241B)‧‧‧Treading

(3) ‧‧‧Track Timing Adjustment Components

(31) ‧‧‧ Timing adjustment wheel

(32A) (32B) ‧ ‧ rotating parts

(33A) (33B) ‧‧‧ Connecting rod

(331) (332) ‧‧ ‧ pivotal

(C) ‧‧‧Sports

(C1) ‧ ‧ support itinerary

(C2)‧‧‧Traveling

(S1) ‧ ‧ first end

(S2) ‧ ‧ second end

(S3) ‧ ‧ third end

Claims (4)

An elliptical motion machine with a link type timing adjustment component, comprising: a body; the two link groups each comprise a link, a crank, a rocker and a step bar, the link has a displacement portion displaceable Positioned on the body, the two ends of the crank are respectively pivotally connected to the body and the connecting rod, so as to displace the displacement portion of the connecting rod along the body, the rocker pivotally connects the body, and the stepping rod is pivotally connected to the connecting body The lever and the rocker are respectively oscillated by the rocker and the connecting rod along a supporting stroke and one of the supporting strokes to form a closed motion stroke; a trajectory timing adjustment The assembly includes a timing adjustment wheel, two rotating members fixed to the crank and two connecting rods, the timing adjusting wheel and the rotating member are pivoted on the body, and the timing adjusting wheel and the rotating member are The axis of the body has a spacing in the radial direction, and each connecting rod is pivotally connected to the timing adjusting wheel and the rotating member respectively, and the length of the connecting rod is greater than the spacing, so that when one of the pedals is in the supporting stroke By one of the rotating parts by one of them Post adjustment wheel drives the positive, axial adjustment of the wheel is rotated to the timing, and the timing adjustment wheel by another connecting rod and the other to drive the rotary member to the other across the pedal lever stroke. An elliptical exercise machine with a link type timing adjustment assembly according to claim 1, wherein the body has a sliding seat for guiding displacement of the displacement portion of the connecting rod along the sliding seat. An elliptical exercise machine with a link type timing adjustment assembly according to claim 1 or 2, wherein the displacement portion of the link is provided with a roller or a slider. An elliptical exercise machine with a link type timing adjustment assembly according to claim 1, wherein the timing adjustment wheel comprises a first side, a second side and a pivotal connection to the first side and The second side defines a swivel space between the first side and the second side, the pivot is erected on the body, and one of the connecting rods is pivotally connected to the first side, and the other The connecting rod is pivotally connected to the second side, and the pivoting positions of the two connecting rods are symmetrical.