TWI382861B - Pedal movement - Google Patents

Description

Pedal exercise device

The present invention relates to an exercise device, and more particularly to a pedal exercise device.

At present, the pedal sports equipment that forms the pedaling trajectory by using the crank group transmission pedal is the most elliptical exercise machine formed by the transmission of the four-bar linkage mechanism or the six-bar linkage mechanism. U.S. Patent No. 5,707,321 discloses a four-link type of pedaling device, and U.S. Patent Nos. 5,897,463, 5,895,339, 5,997,445, 6,248,044, and 6,661,277 are all continuing the United States. A six-link pedaling device that is further improved in the patent No. 5,073,321. However, in the past, in the design considerations, it is still impossible to move away from the restricted sliding track under an elliptical trajectory, which also causes the moving device itself to drive the person to run or step, and the user does not drive the machine to produce a fixed cycle, especially in running. The span cannot be used in response to user operations of different paces.

To this end, the relevant industry has also developed and improved this point. U.S. Patent Nos. 6,1969,48, 6,698,019, 7,341,542, and U.S. Patent Publication No. 2004-0043871 are all for the above-mentioned span or immobilization. The elliptical motion problem is designed to be an adjustable link pivot point or to change the link length through telescoping so that the elliptical trajectory changes as the link length or pivot point changes. However, there is still a trajectory in which the user is still being stepped by these motion devices, and the machine is still driving the user to move along a predetermined trajectory, and there is still room for improvement.

In the above, the Taiwan Patent No. I317641 discloses an elliptical exercise machine which can change the movement stroke according to the user's output, mainly by adding a maintenance device to the pedal and regaining the aforementioned pivot by the principle of elastic force recovery. The point change or the length of the connecting rod rod changes to change the elliptical trajectory, so that when the user actually uses it, the elliptical motion trajectory is changed by the user's force to drive the maintenance device. Although such a mechanism has provided that the user can change the trajectory according to the output, the function of installing the maintaining device and maintaining the maintaining device is a problem that the elliptical exercise machine will subsequently face.

However, summarizing the various pedaling devices described above, it can be seen that the main motion strokes are driven by the crank to cause the pedals to produce a rotary motion, but these motion devices are tied from the handle or the sliding stroke of the pedals to the swinging motion generated by the cranks. In a fixed state of motion trajectory, further, the design of the elliptical trajectory stroke in the past will advance and rotate in the final fixed integration as a non-variable type, which also causes the user to operate the elliptical motion machine. Instead, I will move over to its problems.

Accordingly, it is a first object of the present invention to provide a pedaling device that can separate a sliding stroke from a crank driving stroke to adjust a motion trajectory by a user.

A second object of the present invention is to provide a pedaling exercise device that can be used both back and forth and can be used to generate a non-tracking elliptical motion with the user's pedal force.

Therefore, the stepper of the present invention comprises a base crank and a right crank attached to the front end of the base and connected to each other by a crank shaft. The crank and the split shaft are pivoted to the left crank and the left and right links of the right crank, respectively, having a front end pivotally connected to the left and right links, and a left and right step of a rear end, and Connecting the rear ends of the left and right pedals respectively and limiting the swing group of the left and right pedals sliding along a defined trajectory, wherein: The left and right pedals are pivotally connected to the left and right links, and are suspended from the left and right cranks. In a state, the left and right pedals can be rotated without interlocking the left and right cranks. The left and right swing groups form a limited track sliding stroke. In another state, the left and right pedals interlock the left and right crank positions, and cooperate with the left and right swing groups to form an elliptical track sliding stroke.

The utility model has the advantages that the forward and backward force of the pedal is used to control the front and rear distance of the sliding, and the pedal pressing force is used to control the pedal to drive the crank to generate a rotation stroke. When the pedaling pressure is insufficient, the crankshaft is not Rotating, the left and right pedals can still be driven by the user's forward movement, and the left and right links are suspended at the left and right cranks to form a back and forth swing, and when the pedaling is pressed enough to make the left When the right crank is rotated, the left and right pedals will be used with the elliptical trajectory introduced by the crank and the swaying motion of the crank to form an elliptical application with no orbital, thereby allowing the user to directly perform the self-desired span and the trajectory. Changes, which are flexible and rich, can meet the needs of individual users.

The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments of the invention.

Referring to Figures 1, 2 and 3, a first preferred embodiment of the pedaling device of the present invention example. The pedaling device is disposed along a longitudinal direction of a base 1 in a symmetrical link assembly 2, and preferably, the left and right link assemblies 2 are coupled through a mandrel and are set to Corresponding difference relationship. The connecting rod assembly 2 of each side includes a crank 3 forming a connecting relationship, a connecting rod 4, a stepping rod group 5, and a swinging group 6. In this embodiment, the left and right connecting rod assemblies 2 are coupled. The mandrel is a crank shaft 7 coupled to the left and right cranks 3. Further, a damper 8 rotatably coupled to the crank shaft 7 is provided to control the resistance of the crank 3 when it is rotated.

The base 1 includes a base portion 11 seated on the floor, a support portion 12 extending upward along the base portion 11, and a cantilever 13 fixed to a middle portion of the support portion 12 and extending toward the rear end.

The left and right cranks 3 are pivotally connected to the two sides of the crankshaft 7, respectively, and the crankshaft 7 is rotated about the center of rotation.

The left and right links 4 are pivoted to the left and right cranks 3, respectively.

The left and right step groups 5 each have a step 51 and a pedal 52 disposed on a rear portion 512 of the step 51, wherein a front portion 511 of the left and right pedals 51 are respectively connected to the left and right sides. The rod 4 is pivotally connected.

The left and right swing groups 6 are respectively connected to the rear portion 512 of the left and right pedals 51, and limit the left and right pedals 51 to slide along an arcuate path. In the embodiment, the left and right swing groups 6 include two slide rails 61 disposed on the base 11 of the base 1. The step group 5 further includes a rear portion 512 respectively disposed on the step 51 and Corresponding to the two pulleys 53 sliding on the slide rail 61.

In addition, in order to allow the user's limbs, including the hand, to swing back and forth as the pedal is stepped, a pair of handle sets 9 may be provided to connect the link assembly 2 . In this embodiment, the handle set 9 includes a linkage rod 91 pivoted from the crank 3 and the pivot joint of the link 4, a handlebar 92 and a pivot seat 93. The pivoting seat 93 is rotatably pivotally mounted to the linkage rod 91. A middle portion of the handlebar 92 is fixed to the pivoting seat 93. A bottom end of the handlebar 92 is pivotally connected to the cantilever 13 of the base 1. In this way, the handlebar 92 can reciprocate along with the indexing of the crank 3, and also cooperate with the pedal group 5 to form the same period of reciprocating motion.

Referring to Figures 1 and 3, it is to be noted that when the pedaling device of the present invention is simply used for sliding, the force applied on the user's foot is insufficient to cause the crank 3 to rotate, and generally the pedal 52 is depressed unintentionally; In this state, the link 4 forms a state in which the step group 5 is suspended, so that the user can generate an arc-shaped sliding track by the pulley 53 on the pedal group 5 and the slide rail 61 of the swing group 6. . For example, when the user holds the support portion 12 of the base 1 by both hands, the gravity of the body can greatly reduce the action of the pressing pedal 52, and the pedal 52 can drive the pulley 53 to slide in the swing group. A reciprocating sliding motion is performed on the rail 61.

Referring to Figures 4 and 5, the pedaling device of the present invention is used to step on the left and right cranks 3 to form a rotary motion. In the normal state, the left and right cranks 3 are rotatably coupled to the crankshaft 7, and are substantially 180. The difference in degree, so that when the left crank 3 is directly below, the right crank 3 faces directly upward, and the left and right pedals 52 of the left and right pedal groups 5 also form an upper and lower difference relationship with each other. The configuration relationship is substantially the same as that of the conventional elliptical exercise machine. When the user pedals an upper pedal 52, the other lower step 52 will return upward, but in this embodiment, Foot The force application is sufficient to overcome the cranking inertia of the crank 3, the crank 3 will rotate with the downward stroke of one of the pedals 52, and the other pedal 52 will be relatively linked to the upward stroke. The reciprocating manipulation of the left and right pedals 52 by the foot forms a reciprocating elliptical motion.

Referring to FIGS. 3, 4, and 5, the sliding type of the pedaling device of the present invention is free to change the elliptical motion path of the fixed orbit with the elliptical motion of the stepping, as in the above-described rotary motion mode driven by the crank 3. At the same time, the connecting rod 4 to the stepping rod group 5 is still in a swingable configuration corresponding to the sliding rail 61, so that the user wants to have a large span when stepping on the pedal, and the sliding rail 61 can be followed according to the foot sliding. Increasing the slip stroke, in conjunction with the original 3 strokes of the crank, produces different elliptical motion trajectories.

Therefore, the pedaling device of the present invention controls the front-rear distance of the pedal 52 by the forward force of the pedal, and controls the pedal 52 to drive the crank 3 to generate a rotational stroke by the depression force of the pedal, when the pedal is under the pedal. When the pressure is insufficient, the crankshaft 7 does not rotate at this time, and the left and right pedals 52 can still be driven by the user to move forward, and the left and right links 4 are suspended at the left and right cranks 3 to form a back and forth. Swinging, and when the depression of the pedal is sufficient to cause the left and right cranks 3 to rotate, the left and right pedals 52 will form an elliptical motion with an orbital with the elliptical trajectory introduced by the crank 3 and the swaying motion of the swing. In this way, the user can directly change through the preferred span and the trajectory of the movement, and the flexibility and the change are varied to meet the needs of individual users.

Referring to FIG. 6, which is a second preferred embodiment of the pedaling device of the present invention, the driving method and manner of the present embodiment are the same as those of the above preferred embodiment, except that the base 1 omits the cantilever 13 , including one a connecting arm 14 that is fixed to the top portion of the supporting portion 12 and extends toward the rear end. The left and right swinging group 6 is a connecting arm 14 pivotally connected to the base 1 and the step 51 in this embodiment. The swinging lever 62 between the rear portions 512 can slide along the connecting arm 14 of the base 1 and the pivoting point of the swinging lever 62 to form an arc track.

In summary, the pedaling device is configured to control the sliding stroke of the user's foot to match the driving trajectory of the original crank 3 to form an irregular elliptical motion trajectory, so that the user can change the force during the fitness process. The size of the pedal 52 simultaneously changes the swing amplitude and the trajectory, so that the fitness process is rich and can fully train the muscles of various parts to meet the different needs of individual users, and when the foot does not deliberately press the pedal 52, The left and right pedals 52 can still be slid by the pivotal relationship of the connecting rod 4 suspended in the crank 3. Therefore, the left and right pedals 51 can also perform the reciprocating sliding motion without interlocking the crank 3. It is indeed possible to achieve the object of the invention.

However, the above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made in accordance with the scope of the present invention and the description of the invention. All remain within the scope of the invention patent.

1‧‧‧Base

11‧‧‧ base

12‧‧‧Support

13‧‧‧cantilever

14‧‧‧Connecting arm

2‧‧‧Connector assembly

3‧‧‧ crank

4‧‧‧ Connecting rod

5‧‧‧Step group

51‧‧‧Steps

511‧‧‧ front

512‧‧‧ rear

52‧‧‧ pedal

53‧‧‧ pulley

6‧‧‧swing group

61‧‧‧rails

62‧‧‧swing rod

7‧‧‧ crankshaft

8‧‧‧damper

9‧‧‧Hand group

91‧‧‧ linkage rod

92‧‧‧Handlebar

93‧‧‧ pivot

1 is a side view showing a first preferred embodiment of the stepper of the present invention; FIG. 2 is a front view for explaining the preferred embodiment; FIG. 3 is a side view showing the sliding step of the preferred embodiment Type 4 is a side view showing the step type of the preferred embodiment; FIG. 5 is a view similar to FIG. 4, illustrating the change of the step type before and after the preferred embodiment; and FIG. 6 is a side view. A second preferred embodiment of the stepper of the present invention will be described.

1‧‧‧Base

11‧‧‧ base

12‧‧‧Support

13‧‧‧cantilever

2‧‧‧Connector assembly

3‧‧‧ crank

4‧‧‧ Connecting rod

5‧‧‧Step group

51‧‧‧Steps

52‧‧‧ pedal

53‧‧‧ pulley

6‧‧‧swing group

61‧‧‧rails

7‧‧‧ crankshaft

8‧‧‧damper

9‧‧‧Hand group

91‧‧‧ linkage rod

92‧‧‧Handlebar

93‧‧‧ pivot

Claims (6)

A pedal movement device comprising: a base supported on a floor surface; a left crank and a right crank mounted to the front end of the base by a crank shaft; a left link and a right link And pivoting to the left crank and the right crank respectively; a left pedal and a right pedal respectively having a front portion pivoted to the left and right links, and a rear portion; and a left swing group and a a right swinging group, respectively connecting the rear portions of the left and right pedals, and limiting the left and right pedals to slide along a defined trajectory; wherein the left and right pedals may not interlock the left and right cranks, and The left and right swing groups are guided to form a defined sliding track, and the left and right pedals can interlock the left and right cranks, and form an elliptical track sliding stroke with the swing group. The pedaling device according to claim 1, further comprising left and right pulleys respectively disposed at the rear of the pedals, the swinging groups respectively including a left and right positioned on the base The slide rails are respectively slidably disposed on the left and right slide rails, and can form an arc track along the slide rails. The pedal exercising device according to claim 1, wherein the base comprises a base portion, a support portion extending upward from the base portion, and a top portion fixed to the support portion and facing the rear end An extended connecting arm, the left and right swinging groups are a connecting arm pivotally connected to the base and a rear portion of the pedal An oscillating lever between the connecting arm and the pivoting point of the oscillating lever forms an arc track. The pedaling device according to claim 1, further comprising a damper disposed in linkage with the crankshaft. The pedal exercising device according to claim 1, wherein the base includes a base portion, a support portion extending upward from the base portion, and a middle portion fixed to the support portion and extending toward the rear end The cantilever arm further includes a pair of handle sets, each handle set includes a linkage rod pivoted to the left and right cranks, a pivot seat pivotally connected to the linkage rod, and a handle bar, the handle A middle portion of the rod is fixed to the pivot seat, and a bottom end of the handle rod is pivotally connected to the cantilever of the base. The pedaling device according to claim 1, wherein the left and right links are pivotally connected to the left and right cranks, and the left and right pedals are linked to the left and right cranks. Position, while the left and right pedals can interlock the left and right links to rely on the left and right swing groups to slip to produce an indeterminate elliptical motion.