TWI581831B - Elliptical trainer with the function of immediately changing motion trail - Google Patents

Description

Elliptical machine with instant change of motion stroke function

The present invention relates to an elliptical machine; and more particularly to an innovative structural designer having the ability to instantly change the motion stroke.

Modern people are often neglected because of their fast pace of life and busy work. However, after the rise of leisure and health, the concept of exercise and fitness has also risen. The average person mentions that sports are nothing more than parks or school playgrounds. Although such outdoor venues have the inherent advantages of good air vision, they are easily affected by the weather. Therefore, there are a variety of athletes who have developed a variety of sports and fitness. In order to provide busy modern people to grasp the fragmentation time of the work space, and do not need to go outdoors to achieve the purpose of sports.

Among the many sports devices, the elliptical machine is popular among many consumers because it can simulate the movement of the foot and the leg when people walk. However, when the elliptical machine was first introduced, because it did not have the adjustment function of the stride, the user could not adjust the movement track of the elliptical pedal according to his height and size, resulting in limited use range. Causes the user to produce constant and discomfort during the movement, and even cause sports injuries.

The elliptical machine generally includes a base that is erected on the ground, and a front pole extends upwardly from the front end of the base; a left and right linkage mechanism is respectively disposed on the vertical rod and suspended from the base The left and right sides, each of the linkage mechanisms includes a pedal group, the pedal group can be slid back and forth relative to the linkage mechanism; a transmission mechanism is disposed on the pole and can interlock with each of the pedal groups of the linkage mechanism to form a relative The elliptical trajectory movement; and a left and right adjustment member are respectively pivotally disposed on the upright, and are available for changing the elliptical trajectory of each of the pedal sets. There are two ways to adjust the stroke: manual and electric, which are described below.

Manual adjustment: the main function is to provide an adjustment function by using a connecting rod formed with a plurality of through holes and a set of adjustment groups provided on the connecting rod, the adjustment group comprising a sleeve disposed on the connecting rod and a sleeve The positioning member is disposed on the sleeve and can be reciprocally displaced; the main purpose is to use the positioning member to spirally penetrate the sleeve, and then insert the technical means for positioning the different through holes to achieve the purpose of adjusting the elliptical machine stroke. Such a manual adjustment method can only be adjusted step by step according to the number of through holes, and cannot satisfy all users with different body shapes and heights, and if it is necessary to make finer adjustments, the number of through holes must be increased, and Reducing the distance between adjacent through holes, however, such a method will seriously reduce the structural strength of the connecting rod and affect its structural safety.

Electric adjustment: It mainly uses the screw and a linear brake provided on the screw to achieve the electric stepless adjustment. However, it is well known that the purpose of using a screw to achieve a linear adjustment position is undoubtedly to first rotate the screw relative to the adjusted member. Although the conventional elliptical machine is not specified in the specification, the detailed structure of the linear brake is It is known to those of ordinary skill in the technical field of mechanical or elliptical machines that the linear brake is nothing more than a servo motor or a DC motor. However, the cost of purchasing such components is quite high, and the operator will certainly cost this. Transferred to consumers, the market competitiveness of such elliptical machines is relatively reduced.

Both of the above adjustment methods are not complete enough. For example, manual adjustment must first suspend the user to perform the adjustment action; and the electric adjustment method is not enough for the people. Moreover, the above two adjustment methods are passively adjusted, which is not only not humanized, and cannot be changed at any time according to the physical changes of the user or the usage habits of different users, and the motion stroke is actively changed in real time, and there is still room for improvement.

Moreover, the conventional elliptical machine tends to reduce the cost and simplifies the structure, but it severely shortens the length of the short axis of the elliptical path, and gradually brings the unique function of the elliptical machine closer to the direction of the sliding machine.

Therefore, in view of the problems existing in the above-mentioned conventional elliptical machine, how to develop an elliptical machine which is inexpensive and can change the movement stroke according to the magnitude of the user's force, is actually desired by the user, and is also related to the relevant industry. Efforts must be made to develop breakthrough goals and directions.

In view of this, the inventor has been engaged in the manufacturing development and design experience of related products for many years. After detailed design and careful evaluation, the inventor has finally obtained the practical invention.

The main object of the present invention is to provide an elliptical machine, and the technical problem to be solved is to solve an innovative breakthrough in how to develop a new elliptical machine with an ideally practical and practical function of instantly changing the motion stroke.

The technical feature of the present invention is mainly that the elliptical machine includes a main frame body; the two sides of the main frame body are respectively provided with a link structure, a pedaling structure and a linkage structure, wherein the linkage structure is respectively connected The connecting rod structure and the stepping structure are disposed on the same side of the main frame body; a damping structure which is mounted on the main frame body and synchronously linked with the two interlocking structures at the same time, thereby improving the exercise fitness effect of the elliptical machine; wherein: The interlocking structure comprises two cranks respectively fixed to the two ends of the rotating shaft, and two interlocking rods respectively pivotally connected to the free ends of the cranks respectively; wherein the two cranks are corresponding to 180 degrees, and the interlocking rods The first end and the second end are respectively pivotally connected to the connecting rod structure and the stepping structure on the same side of the main frame body; the connecting rod structure comprises a swinging rod pivoted to the vertical rod on one side, and the first end of the swinging rod The first end of the swinging rod is pivotally connected to the first end of the first connecting rod, and the second end of the swinging rod is pivotally connected to the second connecting rod of the vertical rod. The second link system includes a front And a rear end, the front end of the second link is pivotally connected to the second end of the first link, and the rear end of the second link is pivotally connected with a third link, and the bottom end of the third link The pivoting structure is pivotally connected to the stepping structure; and the front and rear ends of the stepping structure are respectively pivotally connected to the second end of the linking rod and the bottom end of the third connecting rod; the pedaling structure comprises a front section which is connected in series with each other And a rear section, wherein the front end of the front section is pivotally connected to the second end of the linkage rod, the rear end of the rear section is connected with a pedal, and the pedal is pivotally connected to the bottom end of the third link; The department can make an axial reciprocating motion with respect to the front section, and further utilizes the technical means of changing the total length of the series connection of the front section and the rear section to change the movement stroke of the elliptical machine at any time; the relationship between the front section and the rear section is The utility model has a reset function, and provides a proper resetting capability of the rear section, and provides a predetermined resistance (restoring force) necessary for the reciprocating axial movement of the rear section relative to the front section.

The main effects and advantages of the present invention are that the movement stroke of the elliptical machine can be changed at any time in accordance with the size of the pedaling force of the user. Therefore, the movement performance can be improved not only from person to person but also to users of different height and leg length when widely used. It can greatly improve the scope of application of the elliptical machine, achieving practical progress and better industrial economy (utilization) benefits.

Please refer to the first, second, and third figures, which are preferred embodiments of the elliptical machine with the instant change of the motion stroke function of the present invention, but the embodiments are for illustrative purposes only, and are not applicable to the patent application. The elliptical machine having the function of instantly changing the motion stroke mainly includes a main frame body 10, and the two sides of the main frame body 10 are respectively provided with a link structure 20, a pedaling structure 30 and a linkage The structure 40, wherein the interlocking structure 40 is connected to the link structure 20 and the stepping structure 30 on the same side of the main frame body 10, respectively. A damping structure 50 is mounted on the main frame body 10 and synchronously linked with the two interlocking structures 40, thereby improving the exercise and fitness effect of the elliptical machine. The two tread structures 30 are capable of interactively providing the same elliptical movement stroke for the purpose of providing athletic effects. Moreover, the two tread structures 30 can change the total length according to the pedaling force of the user, thereby changing the length of the long axis of the elliptical moving stroke, and the purpose of changing the motion stroke function in real time.

The main frame body 10 includes an I-shaped base 11 , a pole 12 fixed to the base 11 , and a bracket 13 fixed to the pole 12 and the base 11 respectively.

The damper structure 50 includes a flywheel 52 that is screwed on the bracket 13 by a rotating shaft 51 and a resistor 53 mounted on the bracket 13. The resistor 53 is coupled with the flywheel 52 and provides appropriate resistance to enhance the movement. effect.

Each of the interlocking structures 40 includes a crank 41 fixed to the opposite end portions of the rotating shaft 51, and a connecting rod 42 whose two central portions are respectively pivotally laterally connected to the free ends of the corresponding cranks 41. The two cranks 41 are respectively opposite to each other by 180 degrees, and the first end and the second end of the interlocking rod 42 are respectively pivotally connected to the link structure 20 and the stepping structure 30 on the same side of the main frame body 10.

The connecting rod structure 20 includes a swinging rod 21 pivotally connected to the vertical pole 12 on one side. The swinging rod 21 is a dome-shaped structure, and the turning point is laterally pivoted on the pole 12. The first end of the swinging rod 21 is pivotally connected to the first end of the corresponding linkage rod 42, and the second end of the swinging rod 21 is pivotally connected to the first end of the first connecting rod 22; The second link 23 is disposed on the second link 23 of the upright 12, the second link 23 includes a front end and a rear end, and the front end of the second link 23 is pivotally connected to the second end of the first link 22, and A third link 24 is pivotally connected to the rear end of the second link 23, and the bottom end of the third link 24 is pivotally connected to the pedal structure 30.

The front and rear ends of the pedal structure 30 are respectively pivotally connected to the second end of the linkage rod 42 and the bottom end of the third link 24 . The stepping structure 30 includes a front end portion 31 and a rear end portion 32 which are connected in series with each other. The front end portion of the front end portion 31 is pivotally connected to the second end of the linking rod 42 , and the rear end portion 32 is connected with a rear end. The pedal 33 is pivotally connected to the bottom end of the third link 24. The rear section 32 is axially reciprocable relative to the front section 31, and further utilizes the technical means of changing the total length of the front section 31 and the rear section 32 to change the movement of the elliptical machine. The front portion 31 and the rear portion 32 have a reset function, and provide a predetermined resistance (restoring force) necessary for the reciprocating axial movement of the rear portion 32 with respect to the front portion 31. Of course, the present invention may also provide the basis for the reciprocating axial movement of the rear section 32 relative to the front section 31 by the user's application force without providing the aforementioned predetermined resistance. As shown in FIG. 6 , in the preferred embodiment of the present invention, the front section 31 and the rear section 32 are sleeve-fitted to each other and are provided with a resetting function, and may also be matched with a return spring (Fig. The mode in which the slide rails used are not matched with the sliders (not shown).

The present invention further includes two armrests 60 pivotally connected to the two sides of the main frame body 10, wherein the bottom end of each armrest 60 is pivotally connected to the front section 31 of a corresponding tread structure 30, and the top end is provided for The user holds it when using the present invention to avoid danger. The armrest 60 has an inner tube 61 and an outer tube 62 that are sleeved with each other, so that the inner tube 61 can be axially reciprocated relative to the outer tube 62 in accordance with the movement trajectory of the front portion 31 of the pedal structure 30, thereby generating a telescopic function. .

Referring to Figures 4, 5, and 6, when the present invention is normally used, the direction of rotation of the flywheel 52 and the direction of rotation of the free end of the crank 41 are clockwise, as indicated in the drawings. The transmission characteristic of the present invention is mainly driven by the six-bar linkage mechanism formed by the pedaling structure 30, the linkage rod 42, the swinging rod 21, the first connecting rod 22, the second connecting rod 23 and the third connecting rod 24, thereby The pedal 33 simulates an elliptical motion trajectory that is closest to the foot walking. The unique six-bar linkage structure design of the invention can extend the length of the short axis of the elliptical motion track, strengthen the action of the user to lift the foot, and thereby achieve the purpose of exercising the thigh muscle strength.

Furthermore, the biggest difference between the present invention and the conventional elliptical machine is that a two-stage extended motion forming mode is used, one of which is a passive fixed adjustment, and the other is an active random adjustment, which is described below. Passive fixed adjustment: The biggest difference between the present invention and the conventional elliptical machine is that a linkage rod 42 is arranged between the pedal structure 30 and the crank 41, and the trajectory traction at the bottom end of the linkage rod 42 can be used to extend the length of the elliptical motion. The length of the shaft (stepped by the step). Active random adjustment: As shown in FIG. 7, since the step portion 32 of the present invention can be axially reciprocated relative to the front portion 31, and between the front portion 31 and the rear portion 32, The reset function, therefore, when the user steps on the pedal 33 with a faster or greater force, the rear section 32 extends rearward to extend the total length of the pedal structure 30, thereby achieving the secondary extension and extending the long axis of the elliptical motion path. The purpose. And by using the foregoing six-bar linkage structure, when the movement stroke of the elliptical machine is larger, the level of the rear end of the elliptical trajectory simulated by the elliptical machine is higher, which can provide a better motion effect of the user's lower leg. When the user's physical state has decreased and the pedaling rate and force are slowed down after a period of use, please refer to Figure 8, as shown in Figure 8, the reset element will gradually pull the rear section 32 forward and gradually shorten the pedaling. The total length of the structure 30, in contrast, the movement of the entire elliptical machine is also reduced, so that the user can gradually ease the load of the heart and lungs, and finally stop the movement to avoid the feeling of discomfort caused by the rapid stop.

The second embodiment of the present invention is shown in FIG. 9. In this embodiment, the bottom end of the armrest 60 is not pivotally connected to the front portion 31 of the tread structure 30 as in the first embodiment. Firstly, a link 63 is pivotally connected, and the free end of the link 63 is pivotally connected to the third link 24, thereby expanding the swing of the top end of the armrest 60, and by changing the link 63 and the third link. The pivotal position of 24 can also adjust the top swing of the armrest 60.

Advantages of the Invention: The "elliptical machine with instant change of motion stroke function" disclosed in the present invention mainly uses the innovative unique structural type and technical features of the link structure, the tread structure and the linkage structure to make the present invention collate [ In the prior art, the conventional structure can be used to change the movement stroke of the elliptical machine at any time in accordance with the size of the user's pedaling force, thereby achieving the effect of improving the exercise performance according to different people, and the use of different height and leg length when widely used. The utility of the elliptical machine can be greatly improved.

The above embodiments are intended to be illustrative of the present invention, and are not to be construed as limiting the scope of the invention. The principles are changed and modified to achieve an equivalent purpose, and such changes and modifications are to be included in the scope defined by the scope of the patent application as described later.

10‧‧‧Main frame 11‧‧‧Base 12‧‧‧Pole 13‧‧‧ Bracket 20‧‧‧ Connecting rod structure 21‧‧‧ Swing rod 22‧‧‧ First connecting rod 23‧‧‧ second Connecting rod 24‧‧‧ third connecting rod 30‧‧‧ pedaling structure 31‧‧‧ front section 32‧‧‧ rear section 33‧‧‧ pedal 40‧‧‧ linkage structure 41‧‧‧ crank 42‧‧‧ linkage rod 50‧‧‧ Damping structure 51‧‧‧Rotary shaft 52‧‧‧Flywheel 53‧‧‧Resistance 60‧‧‧Handrail 61‧‧‧Inner tube 62‧‧‧Outer tube 63‧‧‧ Connecting rod

Figure 1 is a perspective view of the present invention. Figure 2 is a side view of the invention. Fig. 3 is a schematic view showing the movement of the pedal of the present invention to the forefront. Fig. 4 is a schematic view showing the movement of the pedal of the present invention to the middle section. Fig. 5 is a schematic view showing the movement of the pedal of the present invention to the last side. Figure 6 is a partial perspective view of the tread structure of the present invention. Figure 7 is a schematic view of the pedal travel stroke in Figures 3 through 5. Figure 8 is a schematic view of the present invention for actively adjusting (shortening) the motion stroke due to the small force applied by the user. Figure 9 is a side elevational view of a second embodiment of the present invention.

11‧‧‧Base

12‧‧‧ pole

13‧‧‧ bracket

21‧‧‧swing rod

22‧‧‧ first link

23‧‧‧Second connecting rod

24‧‧‧ Third Link

31‧‧‧ front section

32‧‧‧The latter section

33‧‧‧ pedal

41‧‧‧ crank

42‧‧‧ linkage rod

51‧‧‧ shaft

52‧‧‧Flywheel

53‧‧‧Resistors

60‧‧‧Handrails

Claims (9)

An elliptical machine with an instant change of the motion stroke function mainly comprises: a main frame body; the two sides of the main frame body are respectively provided with a link structure, a pedaling structure and a linkage structure, wherein the linkage structure is A link structure and a stepping structure on the same side of the main frame body are respectively connected; a damping structure which is mounted on the main frame body and synchronously linked with the two interlocking structures at the same time, thereby improving the exercise and fitness effect of the elliptical machine; Each of the interlocking structures includes a crank fixed to the opposite ends of the rotating shaft, and two central portions are respectively pivotally connected to the interlocking rods of the corresponding free ends of the cranks; wherein the two cranks are respectively reversed 180 Degrees correspond to each other, and the first end and the second end of the linkage rod are respectively pivotally connected to the link structure and the stepping structure on the same side of the main frame body; the link structure includes a side pivotal connection to the main frame body a swinging rod, the first end of the swinging rod is pivotally connected to the first end of the corresponding linkage rod, and the second end of the swinging rod is pivotally connected to the first end of the first connecting rod; Second in the main frame a second connecting rod includes a front end and a rear end, the front end of the second connecting rod is pivotally connected to the second end of the first connecting rod, and the rear end of the second connecting rod is pivotally connected with a third end a connecting rod, the bottom end of the third connecting rod is pivotally connected to the stepping structure; and the front and rear ends of the stepping structure are respectively pivotally connected to the second end of the linking rod and the bottom end of the third connecting rod; the pedaling structure The front section and the rear section are connected in series with each other, wherein the front end of the front section is pivotally connected to the second end of the linkage rod, and a pedal is connected to the rear end of the rear section, and the pedal is pivotally connected The bottom end of the third connecting rod; the rear section is axially reciprocable relative to the front section, and the technical means of changing the total length of the front section and the rear section is used to change the movement of the elliptical machine at any time. purpose. As described in the first paragraph of the patent application, the function of changing the movement stroke is The elliptical machine, wherein the main frame system comprises a base, a pole fixed to the base, and a bracket fixedly connected between the pole and the base; the damping structure comprises a flywheel screwed on the bracket by the rotating shaft And a resistance device mounted on the bracket, the resistance device is coupled with the flywheel and provides appropriate resistance to enhance the exercise effect. The elliptical machine having the function of instantly changing the motion stroke according to the first or second aspect of the patent application further includes two armrests respectively pivotally connected to the two sides of the main frame body, wherein the bottom end of each armrest is pivotally connected to one phase. Corresponding to the previous section, and the top is for the user to use when using, to avoid danger. The elliptical machine having the function of changing the movement stroke in an instant as described in claim 3, wherein the armrest has an inner tube and an outer tube which are sleeved to each other, so that the inner tube can cooperate with the movement track of the front portion of the pedaling structure, and The outer tube is axially reciprocated to produce a telescopic function. The elliptical machine with the function of changing the motion stroke in an instant as described in claim 1 or 2 further includes two armrests respectively pivotally connected to the two sides of the main frame body, wherein the bottom end of each armrest is pivotally connected with a connecting rod. The free end of each link is pivotally connected to a corresponding third link, thereby expanding the swing of the top end of the armrest, and adjusting the pivotal position of the connecting rod and the third connecting rod to adjust the top end of the armrest The purpose of the swing. The elliptical machine with the function of changing the movement stroke in real time as described in claim 4, wherein the front section and the rear section are cylinder structures that are sleeved and fitted to each other. The elliptical machine with the function of changing the movement stroke in an instant as described in claim 5, wherein the front section and the rear section are cylinder structures that are sleeved and fitted to each other. The elliptical machine with the function of instantly changing the motion stroke according to the fourth aspect of the patent application, wherein the front section and the rear section are matched with the slide rail and the slider used by the return spring. The elliptical machine with the function of changing the movement stroke in real time as described in claim 5, wherein the front section and the rear section are matched with the slide rail and the slider used by the return spring.