CN103357143B - Sports equipment - Google Patents

Abstract

The present invention relates to a sports equipment, it has a frame body, on the frame body two cranks, two reciprocating members and two swinging arms which are opposite to each other are pivoted, and in addition, it has two left and right linkage rods respectively pivot a preset position between top and bottom ends of the linkage rods on the correspondent crank and can circularly move along a circular track, and the top end of every linkage rod is pivoted on the correspondent reciprocating member and can reciprocally move between high and low two return points along an arc track, and in addition, it has two left and right bearing arms respectively pivot their front ends on the bottom ends of correspondent linkage rods and can move along a first closed track which is generally elliptical, and every bearing arm can pivot a preset position between front and rear ends on the bottom ends of correspondent swinging arm and can swing back and forth, and its rear end can bear the foot of user and move along a second closed track which is generally elliptical.

Description

Sports Equipment

technical field

The present invention is related to sports equipment, in particular to a sports equipment that can guide the user's feet to move circularly on a generally elliptical closed track, or generally called "elliptical machine (Elliptical)".

Background technique

The so-called "elliptical machine" or "elliptical exercise machine" in the field of sports equipment generally refers to those sports equipment that can guide the user's feet to circulate on an elliptical closed track. No. 5,540,637 patent disclosed is its typical. In the design of this type of sports equipment, "longer pedal motion stroke" and "smaller equipment footprint" are usually a dilemma. Taking the structure of the aforementioned U.S. patent as an example, if the length of the crank is increased, the movement stroke of the pedal (generally referring to the length of the long axis of the closed track or the length corresponding to the front and rear directions) will also become longer, which can provide users with more There is sufficient amount of leg exercise, but the front and rear length of the equipment will also expand accordingly, so it will occupy more space and floor area; conversely, although shortening the crank can help save space, it will reduce the amount of leg exercise. Therefore, especially when designing for household models, how to design the structure of this type of sports equipment to be more streamlined and condensed, taking up less space under the premise of providing sufficient exercise strokes, or in other words, in a stricter environment? It has been one of the directions of the relevant designers to provide a longer motion stroke under the strict limitation of the size or length of the equipment.

Of course, in addition to making the pedal trajectory have sufficient front-to-back length, the overall shape of the trajectory and the dynamics of the pedal when moving along the trajectory should also conform to ergonomics as much as possible so that the legs can move naturally and comfortably. For example, if the ratio of the length of the major axis and the minor axis of the closed track of the pedal is improper (such as an ellipse that is too flat or too round), the front and rear halves of the closed track are obviously asymmetrical (for example, the whole is more like an oval), closed The long side of the top side of the trajectory forms a concave arc (for example, the whole is more like a crescent shape), or (corresponding to the constant speed rotation of the crank) the pedal is fast and slow on the trajectory, etc., which may make the user feel unnatural when exercising or not smooth.

In addition to making the pedal track have sufficient front and rear length, if the angle of the pedal track relative to the ground can be adjusted in design, that is, "slope can be adjusted" or "slope can be adjusted", and it can be adjusted within the adjustment range. Complying with the above-mentioned ergonomics will allow the user to have more choices and make the training more comprehensive.

When this type of sports equipment has a large enough placement space, as mentioned in the U.S. Patent No. 5,540,637, the design of the movable grip is usually not a difficult problem, and the movable grip that conforms to ergonomics can be designed very directly. However, when placed When the space shrinks, how to properly set the position of the movable handle in the limited space and where the movable handle should be located in the structure can take into account the three aspects of low cost, convenient manufacturing, and ergonomics. Design conundrum. For example, in U.S. Patent No. 7,153,239, the movable handle 144 extends directly upward from the top of a swing arm 140, and is pivotally arranged on the inside of the U-shaped frame body. It is easy to manufacture, but has at least two disadvantages. The first: obviously, the inner side of the U-shaped frame of the elliptical machine 100 and the top of the pedal 133 are the exercise spaces provided to the user. When the movable handle is pivotally arranged on the U-shaped frame The inner side of the two end points will directly reduce the width of the user's exercise space, which is more likely to cause inconvenience in use and is not ergonomic. If the distance meets the basic demand width, the outer width of the frame body will be increased; second: the pivot of the movable handle is pivoted on one side of the U-shaped frame body, and the structural strength is poor, and the force is concentrated on one side. In this case, failures are more likely to occur.

In addition, on the manufacturer's side, in order to reduce storage and transportation costs, (like various indoor sports equipment) this type of sports equipment is usually disassembled into several parts on the packaging and packed in a smaller carton Therefore, after purchasing, the user must first follow the guidelines of the assembly manual to gradually assemble the various scattered parts into usable sports equipment in a tedious and laborious manner, which is relatively inconvenient.

Contents of the invention

In view of the problems referred to above, the main purpose of the present invention is to provide a kind of sports equipment that can guide the user's feet to move circularly on a generally elliptical closed trajectory. The equipment can have a relatively small volume and front-to-back length, so that the occupied space and floor space are small.

Another object of the present invention is to provide a kind of sports equipment that can guide the user's feet to move circularly on a generally elliptical closed trajectory. The overall shape and the dynamics when the pedal moves along the track are ideal, which can make the user feel more natural and comfortable when exercising.

Yet another object of the present invention is to provide a kind of sports equipment that can guide the user's feet to circulate on a generally elliptical closed track, which can be collected in a small packing carton, and can allow The user can quickly and easily assemble it from the packing state to the using state.

Yet another object of the present invention is to provide a kind of sports equipment that can guide the user's feet to circulate on a generally elliptical closed trajectory. The overall shape and the dynamics when the pedal moves along the track are ideal, and the angle of the pedal track relative to the ground can be adjusted, allowing users to adjust the exercise intensity according to their own preferences.

Another object of the present invention is to provide a kind of sports equipment that can guide the user's feet to move circularly on a generally elliptical closed trajectory. In addition to the above characteristics, it can also guide the user's feet When exercising, the user's hands are simultaneously guided to reciprocate through the movable grip, and the setting of the movable grip does not affect the placement space of sports equipment, nor does it affect the exercise space of the user.

In order to achieve the above object, a kind of sports equipment provided by the present invention is characterized in that it includes: a frame body with a fixed unit and a movable unit, the fixed unit is arranged on the ground, and the movable unit is opposite to the The fixed unit is movable within a range of motion; an adjustment mechanism is arranged on the frame body, so that the movable unit is positioned at a predetermined position within the range of motion selected by the user relative to the fixed unit; a crank mechanism , with two opposite cranks pivoted on the frame body according to a first horizontal axis; two left and right reciprocating parts respectively pivoted on the frame body according to a second horizontal axis; two linkage rods on the left and right, Each has a first connecting portion, a second connecting portion higher than the first connecting portion, and a third connecting portion lower than the first connecting portion; the first connecting portion is pivotally arranged on the corresponding The crank moves circularly along a circular track centered on the first transverse axis; The arc trajectory reciprocates between a relatively high first turning point and a relatively low second turning point; the left and right two swing arms each have a top end and a bottom end, and the top end is according to a first Three horizontal axes are pivotally arranged on the frame body; the left and right carrying arms each have a first part, a second part located in front of the first part, and a third part located behind the first part. part; the first part is pivotally arranged at the bottom end of the corresponding swing arm, and swings back and forth with the top end as the center of a circle, and the second part is pivotally arranged at the third connecting part of the corresponding linkage rod, Moving circularly along a first closed track, the third part is used to carry the user's feet, moving circularly along a second closed track; at least one of the first, second and third transverse axes is located at the The movable unit of the frame body, so that when the movable unit is displaced, the relative relationship between the first, second and third transverse axes changes, thereby changing the shape of the second closed track or relative to the ground attitude.

In the above-mentioned technical solution of the present invention, the left and right reciprocating members are pivotally arranged on the movable unit of the frame body.

The two cranks of the crank mechanism are pivotally arranged on the movable unit of the frame body, and when the movable unit is displaced, the distance between the first transverse axis and the second transverse axis remains unchanged.

In a side view, a straight line defined by the two turning points of the arc-shaped trajectory will pass through the circular trajectory downwards.

The straight line approximately passes through the center of the circular trajectory.

The distance from the first connection part to the second connection part of the linkage rod in side view defines an upper section length, and the distance from the first connection part to the third connection part defines a lower section length, and the lower section length is greater than the specified length. The length of the above section is greater than the diameter of the circular trajectory.

The length of the lower segment is less than three times the diameter of the circular trajectory.

The first turning point of the arc track in side view is located above the rear of the second turning point, and the third connecting part of the linkage rod is located between the second connecting part and the first connecting part. the rear of the extension cord.

The second closed track in a side view is located below the third transverse axis, and the sports equipment further includes left and right rockers, one end of each rocker is connected to the corresponding pendulum A predetermined position of the arm, the predetermined position is located at a predetermined distance below the top of the swing arm, and the other end of each rocker extends upward to form a movable handle for a user to grasp.

In a side view, the movable handle swings back and forth above and in front of the third transverse axis.

Adopt above-mentioned technical scheme, the present invention can provide the same level of pedal motion stroke with shorter crank length, and because the crank length has determined the size that crank mechanism occupies on this kind of sports equipment, so the sports equipment of the present invention can be able to It presents a relatively short front and rear length, making it occupy less space and occupy less floor area. Moreover, the overall shape of the pedal movement trajectory and the dynamics of the pedal movement along the trajectory are relatively ideal, allowing the user to exercise more naturally and comfortably, and at the same time allow the user to adjust the exercise intensity according to his or her preferences. In addition, the sports equipment can be quickly and easily assembled from the boxed state to the use state, or when the user does not use the sports equipment, it can also be conveniently folded into a smaller boxed state.

Description of drawings

Fig. 1 is a right rear perspective view of a preferred embodiment of the present invention in use;

Fig. 2 is a right front perspective view corresponding to the state of Fig. 1 in a preferred embodiment of the present invention;

Fig. 3 is a front view corresponding to the state of Fig. 1 in a preferred embodiment of the present invention;

Fig. 4 is a right view corresponding to the state of Fig. 1 in a preferred embodiment of the present invention;

Fig. 5 is a right rear perspective view of a preferred embodiment of the present invention in a packing state;

Fig. 6 is a front view of a preferred embodiment of the present invention corresponding to the state of Fig. 5;

Fig. 7 is a right view corresponding to the state of Fig. 5 in a preferred embodiment of the present invention;

Fig. 8-A and Fig. 8-B are partial enlargement diagrams near the instrument pole (deleting some irrelevant parts) among a preferred embodiment of the present invention, respectively showing the structure under the state of use and packing state;

Fig. 9 is a partial enlarged view of the swing arm and the vicinity of the rocker (deleting some irrelevant parts) in a preferred embodiment of the present invention, showing the structure in the packing state;

Fig. 10 is a partial enlarged view near the carrying arm (deleting some irrelevant parts) among a preferred embodiment of the present invention, showing the structure in the packing state;

Figure 11-A and Figure 11-B are partial enlarged views of the vicinity of the chassis unit (deleting some irrelevant parts) in a preferred embodiment of the present invention, showing the structure in the use state and the packing state respectively;

Figure 12 is a perspective view of another preferred embodiment of the present invention;

Fig. 13 is a front view of another preferred embodiment of the present invention corresponding to the state of Fig. 12;

Fig. 14 is a right view of another preferred embodiment of the present invention corresponding to the state of Fig. 12;

Fig. 15 is a right side view of the movable unit in another preferred embodiment of the present invention in a tilted state.

detailed description

The structure and effect of the present invention will be described in detail by citing the following embodiments in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, the sports equipment provided by a preferred embodiment of the present invention has a frame body 10 stably erected on the ground during use, which is mainly composed of a base unit 11 placed flat on the ground, It consists of a stand unit 12 fixedly connected above the base unit 11 and an instrument pole 13 connected above the stand unit 12 . Wherein, the stand unit 12 comprises two front columns 14 which are arranged in parallel in the center of the width relative to the front, two opposite side columns 15 which are respectively located on the left and right two sides relatively behind, and the tops of the front columns 14 and the side columns 15 are connected. A U-shaped truss 16. The opening of the U-shaped truss 16 is towards the rear, allowing the user's body to intervene between its left and right sides. The instrument pole 13 is extended upwards from the top position of the front column 14, and a console 17 as a man-machine interface is provided on its top.

A crank mechanism 40 is arranged at approximately the height of the center of the front column 14 of the stand unit 12, which mainly includes a crank shaft (not shown) that is pivotally connected to the front column 14 corresponding to the left and right axial directions, and is symmetrically fixed on the crank The left and right two cranks 41 at opposite ends of the shaft. A large belt pulley 42 is also coaxially fixed between the two cranks 41 on the crankshaft. At the same time, the bottom of the crank mechanism 40 has a flywheel 43 and a small belt pulley coaxially fixed to each other and pivotally connected to the front column 14. 44, a transmission belt 45 is wrapped around the two pulleys 42 and 44, so that the crank mechanism 40 and the flywheel 43 are dynamically connected with a predetermined speed ratio. In addition, although not shown in the figure, this embodiment can also optionally be provided with a resistance device capable of applying predetermined resistance to the flywheel 43, such as an eddy-current brake (eddy-current brake) that can be electronically controlled by the console 17 etc., for the user to adjust the rotation resistance of the crank mechanism 40 (corresponding to the degree of difficulty of the user's movement described later). The use of the inertial flywheel and the resistance device belongs to the well-known and widely used conventional technology of this type of sports equipment, and is not directly related to the technical focus of the present invention, so the above is only a brief description.

The front column 14 of the stand unit 12 is fixedly connected to a cantilever beam 18 extending forward near the top position. There is a rod-shaped reciprocating member 50 on the left and right sides of the cantilever beam 18. The left and right reciprocating members 50 are symmetrical in shape. , respectively having a first end opposite to the front and a second end opposite to the rear, and each first end is pivotally connected to the front end of the cantilever beam 18, and the pivots of the first ends of the two reciprocating members 50 form a coaxial axis, which The pivot axis (hereinafter referred to as the second transverse axis) A2 is parallel to the common pivot axis of the two cranks 41 (ie, the axis of the crankshaft, hereinafter referred to as the first transverse axis A1 ). Although the left and right reciprocating elements 50 have a common axis, they are not connected to each other. In other words, the two reciprocating elements 50 can move relative to each other.

On the left and right sides of the front column 14 of the stand unit 12, there are respectively a connecting rod 60 extending longitudinally, and a predetermined position between the top and bottom ends of each connecting rod 60 (hereinafter referred to as the first connecting part) 61 is pivotally connected to the outer end of the corresponding crank 41, so it will be restricted to move along a predetermined circular track T1 with the crank shaft axis A1 as the center and the crank length as the radius as shown in Figure 4 (note: "crank Length" is defined here as the distance from the axis of the crankshaft to the axis of the first connecting portion 61 in side view), and at the same time, based on the symmetry of the left and right two cranks 41, the left and right two linkage rods in side view The first connecting portion 61 of 60 will keep facing each other at 180 degrees on the circular trajectory T1. The top end (hereinafter referred to as the second connecting portion) of each linkage rod 61 is pivotally connected to the second end of the corresponding reciprocating member 50, based on the preset component relationship (including the relative positions of the first and second transverse axes A1, A2 , crank length, the length and direction between the two opposite ends of the reciprocating member 50, the length and direction between the first and second connecting parts of the linkage rod 60, etc.), corresponding to the first connection part 61 of the linkage rod 60 along the Moving circularly along the circular trajectory T1, the second connecting portion of the linkage rod 60 will be at two end points (hereinafter referred to as the first and second turning points) P1 along a predetermined arc-shaped trajectory T2 with the second transverse axis A2 as the center of the circle. , P2 reciprocating movement, and, roughly speaking, the second connecting portion of the left and right linkage rods 60 in side view will reversely move on the arc track T2.

Furthermore, corresponding to the first connecting portion 61 of the linkage rod 60 cyclically moving along the circular trajectory T1, and the second connecting portion reciprocating along the arc-shaped trajectory T2 at the same time, the bottom end of the linkage rod 60 (hereinafter referred to as (called the third connecting part) will move circularly along the generally elliptical first closed track T3, and the third connecting part of the left and right two linkage rods 60 in side view will remain approximately on the first closed track T3. Relative positions, for example, when one is in the front region of the track, the other is in the opposite rear region.

The rears of the left and right linkage rods 60 each have a swing arm 70 extending longitudinally, and the top ends of the two swing arms 70 are pivotally connected to the U of the stand unit 12 according to a third horizontal axis A3 corresponding to the left and right axial directions. The left and right sides of the open end of the shaped truss 16 enable the bottom ends of each swing arm 70 to swing back and forth along a swing track T4 centered on the third transverse axis A3. In addition, an upwardly extending rocker 75 is connected to the top end of each swing arm 70. The top end of the rocker 75 is higher than the third transverse axis A3 and forms a movable handle 76 for the user to hold. It can also swing back and forth along a swing track T5 with the third transverse axis A3 as the center, and will move in reverse with the bottom end of the corresponding swing arm 70 in the front-back direction.

Below the left and right two swing arms 70, there are respectively carrying arms 80 extending along the front and rear directions, and a predetermined position (hereinafter referred to as the first position) 81 between the front and rear ends of each carrying arm 80 is pivotally connected to the corresponding The bottom end of the swing arm 70 is thus restricted from moving along the swing trajectory T4. The front end (hereinafter referred to as the second part) of each carrying arm 80 is pivotally connected to the bottom end (ie, the third connecting part) of the corresponding linkage rod 60 , so it is restricted to move along the first closed track T3 . Since the second parts of the left and right carrying arms 80 in a side view will remain roughly relative to each other on the first closed trajectory T3, when moving, generally speaking, the first parts of the left and right carrying arms 80 81 can move in reverse on the swing track T4, and the left and right movable grips 76 on the top will also move in reverse on the swing track T5.

A pedal 82 located behind the first part 81 is provided on the inner side of the rear half section of each bearing arm 80 to form a third part for supporting the user's feet. Corresponding to the cyclic movement of the front end (i.e. the second part) of the carrying arm 80 along the first closed track T3, and the simultaneous reciprocating movement of the first part 81 along the swing track T4, the pedal 82 will move along the generally elliptical first part The two closed tracks T6 circulate (note: the track T6 shown in Fig. 4 is the movement track at the rearmost end of the pedal 82), and the left and right two pedals 82 under the side view will maintain the approximate relative position on the second closed track T6 , for example, when one is in the front region of the track, the other is in the opposite rear region.

When using the sports equipment, the user will step on the left and right two pedals 82 with both feet respectively, and hold both hands on the left and right movable handles 76 respectively, and apply force appropriately to make the pedals 82 and the movable handles Move the handles 76 along the respective predetermined motion tracks, so that the left and right two pedals 82 can move in reverse along the second closed track T6 in the front, back and up and down directions, and the left and right movable grips 76 can be swung along the The trajectory T5 reversely moves forward and backward and up and down, and the movable grip 76 and pedal 82 on the same side move reversely forward and backward, thereby performing a balanced and coordinated whole-body movement. Through the setting of the flywheel 43 and the resistance device, a predetermined inertia that is conducive to smooth and stable movement can be obtained, and the degree of difficulty of the movement can be adjusted as required.

The present invention can use the above-mentioned structure and the relative relationship of specific parts to make the sports equipment provide sufficient pedal motion strokes with relatively small equipment volume and front and rear lengths to achieve the purpose of saving space. The overall shape of T6) shown in 4 and the dynamics of the pedal as it moves along the trajectory are both ergonomic and allow for natural and comfortable leg movement. Further illustrate the technical means of the above-mentioned embodiment of the present invention below:

As shown in Figure 4, because the arc track T2 corresponding to the top of the linkage rod 60 (i.e. the second connecting portion) is roughly longitudinally extending and located in the circular trajectory T1 corresponding to the first connecting portion 61 in the middle of the linkage rod 60 Therefore, the first closed trajectory T3 corresponding to the bottom end of the linkage rod 60 (that is, the third connecting part) will be located below the circular trajectory T1, and generally appear to be longer in the front-rear direction and shorter in the up-down direction. ellipse, wherein the length of the minor axis of the first closed trajectory T3 is approximately equal to the diameter of the circular trajectory T1, and the length of the major axis of the first closed trajectory T3 is obviously greater than the diameter of the circular trajectory T1, in this case about about three times. The above-mentioned magnification mainly depends on the length of the lower section (referring to the distance from the first connection part 61 to the third connection part) and the length of the upper section (referring to the distance from the first connection part 61 to the second connection part) of the linkage rod 60 in side view. In other words, generally if the length of the lower segment of the linkage rod 60 is longer, the length of the major axis of the first closed track T3 at the bottom end of the linkage rod 60 will be longer; When it is too long, the long side of the top side of the first closed track T3 will form a concave arc, which is unfavorable for the ergonomics of the pedal described later, so it is better to control it within an appropriate proportion range, for example, to make the length of the lower section of the linkage rod 60 greater than the length of the upper section, and greater than the diameter of the circular trajectory T1, but not exceeding three times that diameter.

And because the swing track T4 corresponding to the first part 81 in the middle of the carrying arm 80 extends in the front-rear direction and is located behind the first closed track T3 corresponding to the front end of the carrying arm 80 (i.e. the second part), the rear of the carrying arm 80 The second closed trajectory T6 corresponding to the pedal 82 at the end will generally present an ellipse that is longer in the front-rear direction and shorter in the up-down direction, and the length of the major axis of the second closed trajectory T6 is the same as that of the first closed trajectory T3. The axis lengths are approximately equal. In other words, in this example, the movement stroke of the pedal 82 in the front-rear direction is approximately three times the diameter of the circular trajectory T1. Compared with the conventional pedal motion stroke in this type of exercise equipment (such as the aforementioned U.S. Patent No. 5,540,637 structure), which is generally equal to the diameter of the crank circular trajectory, the present invention can provide the same level of pedal motion with a shorter crank length stroke, and because the crank length determines the size of the crank mechanism on this kind of sports equipment, so the sports equipment of the present invention can present a relatively short front and rear length as a whole, so that it occupies less space and floor area.

Incidentally, if the upper and lower relationship between the arc track T2 and the circular track T1 in the above structure is reversed, that is, if the top end of the linkage rod 60 is limited to move on a circular track, and the linkage rod 60 top, A predetermined position between the two ends of the bottom is restricted to move on a longitudinal trajectory, so, although the bottom end of the linkage rod 60 also correspondingly moves on a closed trajectory, the length of the major axis of this closed trajectory is relative to the length of the crank The magnification is low, and the shape of the trajectory is more like a semicircle rather than an ellipse, so the applicability is poor.

In the above-mentioned embodiment of the present invention, the arc track T2 is biased towards the back and upper side of the circular track T1, and at the same time, the higher first turning point P1 of the two endpoints of the arc track T2 is relatively behind the second turning point P2 Above, moreover, the straight line L defined by the two turning points P1 and P2 will pass through the circular trajectory T1 downwards, preferably roughly passing through the center of the circular trajectory T1 as shown in the figure. The present invention makes the straight line L (representing the general trend of the top of the linkage rod 60 during reciprocating motion) pass through the circular trajectory T1, or even point to its center of circle, so that the two halves of the first closed trajectory T3 at the bottom end of the linkage rod 60 can The shape is more symmetrical, and the second closed track T6 at the rear end of the carrying arm 80 can also present a more symmetrical shape, for example, it is less likely to produce an oval-like track that is obviously round at one end of the long axis and sharp at the other end.

Also, the straight line L is preset as the above-mentioned inclined form rather than perpendicular to the ground, so that the long axis of the first closed trajectory T3 has a predetermined elevation angle with the ground (meaning that the front end is appropriately higher than the rear end), and the second The two closed trajectories T6 have corresponding shapes, which are suitable for leg movements. Furthermore, as can be seen from FIG. 4 , in the above embodiment, the bottom end (ie, the third connecting portion) of the linkage rod 60 is located at the extension from the top end (ie, the second connecting portion) down to the first connecting portion. line (not shown in the figure), this is in order to make the long axis of the first closed track T3 look upwards, while preventing the first closed track T3 from moving forward too much and increasing the front and rear length of the sports equipment.

The sports equipment of the present invention has the feature of saving space in the state of use and has been described above. Next, the boxed state of the sports equipment of the present invention when it leaves the factory and the assembly operation after the buyer unpacks it will be described.

Fig. 5 to Fig. 7 show the contraction structure of the sports equipment of the above-mentioned embodiment in the packing state, and Fig. 6, Fig. 7 wherein (note: the rectangular outer frame in the figure shows the carton size) respectively with Fig. 3, Fig. 4 It can be seen from the comparison that the height and front-to-back length of sports equipment in the packed state are significantly smaller than the size in the used state, and the overall structure presents a high-density compact structure, which can effectively save packaging materials, storage, and transportation costs. At the same time, in order to facilitate the user's assembly operation after purchase, sports equipment is not packaged in a mostly disassembled manner as in the general known technique, but a suitable folding structure is adopted between several components, which are temporarily folded into a box when leaving the factory. The above-mentioned packing state (or temporarily not assembled into the use state), and then folded and locked into the above-mentioned use state before the first use. The above folded structure will be described in sequence below, including four major parts including the instrument bar 13 , the rocker 75 , the carrying arm 80 , and the bottom frame unit 11 of the frame body 10 .

As shown in Figure 8-A and Figure 8-B, the instrument bar 13 is actually pivotally connected to the stand unit 12 in a releasable or locked manner. A socket 19 is fixed at the intersecting position of the shaped truss 16, and an end (that is, the bottom end during use) away from the console 17 of the instrument bar 13 is correspondingly fixed with a joint seat 21, and the front edge of the joint seat 21 The part is pivotally connected to the front edge of the seat 19 of the stand unit 12 through a transverse pivot 22, so that the instrument bar 13 can be folded down from the standing posture shown in Fig. 8-A to the position shown in Fig. 8-B. The drooping posture is accommodated in the space between the front column 14 and the left and right side columns 15 of the stand unit 12 (as shown in FIGS. 5 to 7 ). The socket 19 of the stand unit 12 is provided with a wiring hole 23 and a screw hole 24, and the joint seat 21 of the instrument rod 13 is provided with a wiring hole 25 and a perforation 26 that can be matched with it. When assembling, use The instrument rod 13 is folded up from the drooping posture until the joint seat 21 abuts against the seat 19, and then the bolt (not shown) passes through the perforation 26 and screwed into the screw hole 24, and the instrument rod 13 can be locked. at the available predetermined location. Wherein, the wiring holes 25, 23 are provided with wires (not shown) for electrically connecting the control console 17 and the resistance device, etc., depending on the design, the user may or may not need to install the instrument pole 13 before assembling it. Splice the wires first.

As shown in Figure 9 (note: shown is the partial structure of the left half of the sports equipment), each rocker 75 is actually pivotally connected to the corresponding swing arm 70 in a releasable or locked manner. , each swing arm 70 is fixed with a seat 71 near the top position, and one end (that is, the bottom end during use) away from the movable handle 76 of each rocker 75 is correspondingly fixed with a joint seat 77, the swing arm 70 and the rocker 75 make the seat 71 and the joint seat 77 abut in parallel and are pivoted to each other through an oblique pivot 72 perpendicular to the abutment surface. The pivot 72 generally extends from the upper rear to the lower front, so that each side The rocking bar 75 on one side can be turned into a posture extending to the other side (for example, the rocking bar on the left hand side in FIG. area (as shown in Figure 5 to Figure 7). The seat 71 of each swing arm 70 is provided with a perforation 73, and the joint seat 77 of each rocker 75 is provided with a screw hole 78 that can be matched with it. When assembling, the user extends the rocker 75 from the side. Turn upwards until the screw hole 78 matches the perforation 73 of the swing arm 70, and then pass the bolt (not shown) through the perforation 73 and screw it into the screw hole 78, so that the rocker 75 can be locked relative to the swing arm 70. fixed in a predetermined position ready for use.

As shown in Figure 10 (note: the partial structure of the right half of the sports equipment in the figure), each bearing arm 80 is actually formed by a front segment rod 83 and a rear segment rod 84 that can be relatively loosened or locked. In more detail, the rear end and front end of the front section rod 83 are respectively pivotally connected to the bottom end of the corresponding swing arm 70 and the bottom end of the linkage rod 60 to form the first part 81 and the second part, and the rear section rod part The second half section of 84 then forms the 3rd position that is used to carry the user, and its front end is pivotally connected on an ear seat 86 that the front segment bar 83 leans against the rear end through a transverse pivot 85, so that each carrying arm 80 The rear section rod 84 can rotate from the backward extending posture to the upward extending posture (as shown in FIG. 5 to FIG. 7 and FIG. 10 ). A seat 87 is provided on the top of the rear end of each front section rod 83, and a joint seat 88 that can cooperate with it is provided at the bottom of each rear section rod 84, which is close to the front end. When assembling, the user puts the rear section rod 84 is rotated downward until the connecting seat 88 abuts against the bearing seat 87 of the front rod 83, and then the bolt 89 is passed through the connecting seat 88 and screwed into the screw hole 91 on the bearing seat 87, so that the bearing arm 80 can be locked for use. state.

As shown in Figure 11-A and Figure 11-B, the underframe unit 11 is actually composed of a fixed frame 27 and two left and right folding levers pivotally connected to the rear end of the fixed frame 27 in a releasable or embedded manner. 28, in more detail, the fixed frame 27 is used as the fixed base of the stand unit 12, and it has parallel and opposite left and right side bars 29, and an opening is formed between the rear half sections of the two side bars 29 toward In the rear storage space 31, one end (that is, the front end when in use) of each folding rod 28 is pivotally connected to an ear seat 33 of the corresponding side rod 29 by a longitudinal pivot 32, which is biased towards the rear end, so that each side The folding rod 28 can be rotated from the posture extending backward as shown in FIG. 11-A to the posture extending to the other side as shown in FIG. 11-B, and is accommodated in the storage space 31 of the fixed frame 27. The rear end of each side bar 29 is provided with a downward socket 34, and each folding rod 28 is provided with an upward socket 35 which can cooperate with it. When assembling, the user extends the folding rod 28 from the side Rotate backwards until the upward seat 35 fits the downward seat 34 of the fixed frame 27, and the convex post (not shown) on the bottom surface of the downward seat 34 fits into the concave hole of the upward seat 35 36 , that is, the folding rod 28 can be positioned at a predetermined position, and the supporting area at the bottom of the frame body 10 can be expanded. Wherein, the pivot hole supporting the longitudinal pivot 32 at the bottom of the ear seat 33 is a perfect circle, but the pivot hole at the top of the ear seat 33 is a slightly elongated oblong. When the user rotates the folding lever 28 close to During positioning, the rear end of the folding rod 28 can be slightly lower than the front end by the above structure, (if necessary, the fixed frame 27 is slightly raised) so that the top surface of the upward nest 35 skips the bottom of the convex column of the downward nest 34 side and then fit together.

Generally speaking, after the buyer of sports equipment removes the packing carton (and possibly some positioning materials), the left and right two folding levers 28 of the chassis unit 11 can generally be rotated backwards in sequence and positioned at the preset position. position, turn the rear segment rods 84 of the left and right two carrying arms 80 downward and lock them at the predetermined position, turn the left and right two rocker bars 75 upward and lock them at the predetermined position, and move the instrument bar 13 to the predetermined position. Fold up and lock at the predetermined position, quickly and easily assemble the sports equipment from the packing state to the using state. Certainly, if necessary, for example, when not using, storing or transporting the sports equipment, the user can also fold it into a smaller packing state.

The following is another preferred embodiment of the present invention. The general structure of this embodiment is the same as that of the previous embodiment. To avoid redundancy, only the differences are described in detail.

As shown in Fig. 12 to Fig. 14, the sports equipment 200 provided by another preferred embodiment of the present invention has a frame body 210, which mainly has a fixed unit 211 and a movable unit 212, and the fixed unit 211 is mainly composed of A bottom frame 218 on the ground, the left and right two vertical frames 215 fixed on the top of the bottom frame 218, a cross bar 216 connected between the left and right two vertical frames 215 and an instrument connected on the cross bar 216 Rod 213 is formed. The left and right two vertical frames 215 are symmetrical and generally in an inverted U shape, with a front bar 215a and a rear bar 215b extending longitudinally, and a cross bar 215c connected between the front bar 215a and the rear bar 215b. In addition, Below the rear bar 215b of each stand 215 and the cross bar 215c junction, be provided with two left and right relative fixed pieces 215d; Two stand 215 rears enter wherein. In addition, a fixed armrest 216a is provided on the cross bar 216; a console 217 serving as a man-machine interface is provided on the front side of the fixed armrest 216a and at the top of the instrument bar 213. The movable unit 212 includes two front pillars 214 that are arranged in parallel in the center of the width. The top ends of the two front pillars 214 are fixed with a connecting piece 219, and the bottom ends are pivoted to the fixed unit 211 with a pivot axis corresponding to the left and right axial directions The bottom frame 218 makes the two front pillars 214 deflect forward or backward relative to the fixing unit 211 synchronously.

An adjustment mechanism 220 is provided between the connecting piece 219 at the top of the front column 214 and the cross bar 213 of the fixing unit 211, including a motor unit 221, a screw rod 223, and a nut 222. The rear end of the motor unit 221 corresponds to the left and right shafts. To the cross bar 216 pivoted on the fixed unit 211, the rotation axis of the screw rod 223 extends forward and backward and its rear end is connected to the motor group 221, and the nut 222 is also pivotally connected to the connecting piece 218 at the top of the front column 214 in the corresponding left and right axial directions. , and the screw 223 is threaded through the nut 222 . When the motor group 221 is running, the screw rod 223 can be driven to rotate forward or reverse, so that the nut 222 screwed on it advances or retreats relative to the ground, so as to drive the front column 214 relative to the ground with the pivot axis at its bottom as the axis , deflect forward or backward and be positioned at a predetermined position in the range of motion, in this embodiment, the range of motion is the position where the front column 214 is located in Figure 14 (hereinafter referred to as the first position), and in Figure 15 The position of the front post 214 (hereinafter referred to as the second position) is defined. Specifically, the adjustment mechanism 220 can position the front post 214 at the first position, the second position, or between the first position and the second position.

The crank mechanism 240 of this embodiment is located at the approximate central position of the front column 214 of the movable unit 212. The crank mechanism 240 has two opposite cranks 241 and a crank shaft (not shown in the figure). The axis A1 ′ is pivotally disposed on the front column 214 , so when the adjusting mechanism 220 deflects the front column 214 , the crank mechanism 240 is simultaneously displaced relative to the fixing unit 211 . In addition, a flywheel 243 is provided below the crank mechanism 240 to provide inertia and cooperate with a resistance device (not shown) to provide resistance.

There is a rod-shaped reciprocating member 250 on the left and right sides close to the top position of the front column 214. Unlike the previous embodiments, the left and right reciprocating members 250 of this embodiment are arranged on the movable unit 212 of the frame body, that is, its The pivot axis (hereinafter referred to as the second transverse axis A2 ′) moves along with the deflection of the movable unit 212 of the frame body 210 ; for other details about the left and right reciprocating member 250 , please refer to the foregoing embodiments.

On the left and right sides of the front column 214, there is a linkage rod 260 extending longitudinally, and its connection relationship with the surrounding structure is the same as that of the previous embodiment. The circular trajectory T1' moves, and its top end, that is, the second connecting part will be at two end points (hereinafter referred to as the first turning point P1 ' and the second The reciprocating movement between the two return points (P2'), and the second connecting portion of the left and right linkage rods 260 in a side view will move in the opposite direction on the arc track T2'.

Similarly, corresponding to the first connecting part 261 of the linkage rod 260 cyclically moving along the circular trajectory T1', and the second connecting part reciprocating along the arc-shaped trajectory T2' at the same time, the bottom end of the linkage rod 260 (hereinafter referred to as the third connecting portion) will move circularly along the generally elliptical first closed track T3′, and the third connecting portion of the left and right two linkage rods 260 in side view will remain on the first closed track T3 ' on the approximate relative position.

At the rear of the left and right linkage rods 260, there is a swing arm 270 extending longitudinally. Frame 215, in detail, the top of each swing arm 270 is between the two fixed pieces 215d, and is pivotally arranged on the two fixed pieces 215d, therefore, the top of the swing arm 270 is even approximately two-thirds of the length below it. All are on the same vertical plane with the corresponding stand 215, or in other words, a part of the length of the swing arm 270 is surrounded by the corresponding stand 215, if viewed from the rear side, front side or upper side of the sports equipment 200, The tops of the left and right swing arms 270 cannot be seen because they are covered by the rear bar 215b, the front bar 215a and the longitudinal bar 215c of the left and right stand 215 respectively. Likewise, the bottom end of the swing arm 270 can swing back and forth along a swing track T4' centered on the third transverse axis A3'.

In addition, at a predetermined distance below the top of each swing arm 270, a rocker 275 extending forward and upward is connected. After the space is extended, it further extends upwards to the inside of the left and right two stand 215, and makes the top of the rocker 275 higher than the third horizontal axis A3', so that the rocker located on the front and upper side of the third horizontal axis A3' The top part of the rod 275 forms a movable handle 276 that can be held by the user, and can swing back and forth along a swing track T5' centered on the third horizontal axis A3', and will be in contact with the bottom end of the corresponding swing arm 270. Reverse movement in the front-back direction, wherein, as can be seen from Figure 14 and Figure 15, the movable grip 276 is located at the front and upper part of the third horizontal axis A3', so its swing track T5' presents a posture in which the front end is lower than the rear end, so that the user can In terms of feeling during actual use, when the movable handle 276 is pushed to swing forward, the direction of application of force and displacement will be felt forward and downward; The direction of displacement is backward and upward.

The structures of the left and right carrying arms 280 and the left and right pedals 282 as well as the connections with other components are the same as those of the foregoing embodiments, please refer to the foregoing embodiments for details. Corresponding to the second part of the bearing arm 280 moving cyclically along the first closed track T3' along the first closed track T3', and the first part 281 reciprocating along the swing track T4' at the same time, the pedal 282 will follow the same path. The elliptical second closed track T6 ′ moves circularly, wherein the second closed track T6 ′ in FIG. 14 and FIG. 15 is the movement track of the middle part of the pedal 282 .

Same as the foregoing embodiments, this embodiment can also provide sufficient pedal motion strokes with relatively small equipment volume and front and rear lengths to achieve the purpose of saving space. At the same time, the overall shape of the pedal motion track and the dynamics of the pedal along the motion track Taking into account ergonomics, it can make the legs feel natural and comfortable when exercising. Not only that, this embodiment can control the position of the movable unit 212 of the frame body 210 through the adjustment mechanism 220, so that the pedal movement track can have different postures relative to the ground . Please refer to Fig. 14 and Fig. 15, the technical means of this embodiment is further described below:

Since the exercise equipment 200 is equipped with an adjustment mechanism 220, its effect is to make the movable unit 212 of the frame body 210 can be positioned at a first position (that is, the state shown in Figure 14, two front posts 214 are approximately perpendicular to the ground) and a second position. position (i.e. the state shown in FIG. 15, relative to FIG. 14, the nut 222 moves to the front end of the screw rod 223, and the two front columns 214 deflect forward thereupon and are positioned at an angle of about 81 degrees on the ground), when the movable unit 212 If the position of the second closed track T6' is changed, the attitude of the second closed track T6' relative to the ground will also change. From the perspective of the user, the change of the attitude of the second closed track T6' means that the slope changes or even the shape of the track changes. In other words In other words, when the user wants to change the difficulty of the exercise, he can not only apply resistance to the flywheel 260 through the resistance device (not shown in the figure), but also control the adjustment mechanism 220 through the console 217 to adjust the slope of the second closed track T6' In other words, the movable unit 212 of the frame body 210 is positioned at any position within the range of motion defined by the first position and the second position, thereby changing the attitude of the second closed track T6' relative to the ground, so as to adjust the difficulty of exercise the goal of.

When the adjustment mechanism 220 starts to operate, as the movable unit 212 of the frame body 210 starts to deflect, the first horizontal axis A1' and the second horizontal axis A2' will start to move relative to the fixed unit 211 until the movable unit 212 is positioned on the user However, no matter where the movable unit 212 is located, the sports equipment 200 can still possess the above-mentioned ergonomic features, because the displacement of the movable unit 212 will not change the first and second transverse axes A1' , the relative position of A2', the length of the crank 241, the length between the opposite ends of the reciprocating member 250, the length between the first connecting portion 261 and the second connecting portion of the linkage rod 260, etc., for example, As shown in Figure 15, when the movable unit 212 is in the second position, although the first horizontal axis A1' and the second horizontal axis A2' deflect a predetermined distance along with the front column 214, because they are all at the bottom of the front column 214 The ends are deflected in the same direction as the center of the circle, so the distance between each other remains unchanged. Therefore, in Figure 14, the connection between the first turning point P1' and the second turning point P2' will go down through the circular trajectory, and finally It is better to go down through the center of the circular track T1', so that the shape of the first closed track T3' at the bottom end of the linkage rod 260 is relatively symmetrical, and the second closed track T6' at the rear end of the carrying arm 280 is more symmetrical. The advantages of symmetry remain the same.

Comparing Fig. 14 and Fig. 15, when the movable unit 212 is in the second position, the front end of the first closed track T3' is relatively forward and close to the ground compared to the state in Fig. 14, or in other words, the front end is slightly lowered, the reason Because the formation of the first closed track T3' is mainly caused by the connection relationship between the reciprocating member 250, the crank mechanism 240 and the linkage rod 260, and these three mechanisms are all arranged on the movable unit 212 of the frame body 210, therefore, when the movable unit When 212 deflects forward, the first closed track T3' will also deflect forward with the bottom end of the front column 214 as the axis. 'The whole will show a posture such as the front end is lowered and the rear end is raised. When the first closed track T3' changes from the state of FIG. 14 to the state of FIG. 15, its specific impact can be observed again at the front end of the right carrying arm 280 (that is, the pivotal part with the right linkage rod 260), the first part 281 (the position pivotally connected with the right swing arm 270) and the relative relationship between the rear end (the tail end of the pedal 282) when the movable unit 212 deflects, wherein the right carrying arm 280 is a rigid body, when its front end follows the movable unit 212 forward When deflecting and approaching the ground (that is, the first closed track T3' in Fig. 15), it is like a seesaw, and any part behind the first part 281 will deflect forward and upward compared with the state in Fig. 14 . The middle part of the pedal 282 is no exception. Due to its influence, the front end of the second closed track T6' in Fig. 15 is obviously raised compared with its state in Fig. 14 . T6' presents a posture with a relatively large slope in FIG. 15 .

It should be noted that in order to make the second closed track T6' have a slope change, it is not limited to changing the positions of the first horizontal axis A1' and the second horizontal axis A2', in a possible embodiment, it is also possible to use the crank mechanism The axis of the crank shaft (i.e. the first horizontal axis) is set on the fixed unit of the frame body, and only the deflection axis (i.e. the second horizontal axis) of the reciprocating member is set on the movable unit. Taking this embodiment as an example, the A skilled person can easily fix a crossbar (not shown in the figure) at the position corresponding to the first horizontal axis A1' on the left and right two vertical frames 215, and change the first horizontal axis A1' from being set on the movable unit 212 to In order to be located on the cross bar, that is, the crank mechanism 240 is located on the cross bar, and the setting of the left and right two reciprocating members 250 remains unchanged. In this way, the second reciprocating member 250 can still be adjusted by moving the position of the reciprocating member 250. The slope of the closed track T6', and with the different slopes, the shape of the second closed track T6' will change slightly, but as long as it is within a reasonable adjustment range, it still generally does not deviate from one of the inventive spirits of the present invention: "When When the adjustment mechanism 220 displaces the movable unit 212 of the frame body 210, the straight line defined by the two turning points P1' and P2' of the arc-shaped trajectory T2' in side view will pass through the circular trajectory T1'" downwards, and still Can maintain a certain degree of ergonomic advantages.

If the purpose of adjusting the exercise intensity is achieved only by changing the position of the second transverse axis A2', compared to the second embodiment of the present invention, a relatively high-bearing structure like the front pillar 214 may not be needed. Among the possible changes, in order to save manufacturing cost, it is also possible to replace the front column 214 with a shorter deflection rod (not shown in the figure), for example: using a shorter deflection rod relative to the front column, the length may only be as long as the front column half, or even shorter, its lower end is pivotally connected to the fixed unit 211 of the frame body 210 corresponding to the left and right axial directions, and the upper end is also connected to the adjustment mechanism 220, so that the purpose of adjusting the position of the second transverse axis can also be achieved .

In addition, in order to adjust the slope of the second closed trajectory T6', in addition to changing the position of the first horizontal axis A1' or the second horizontal axis A2', the purpose of adjusting the slope can also be achieved by changing the position of the third horizontal axis A3' . As for the adjustment method of the third horizontal axis A3', you can refer to the various methods disclosed in the applicant's U.S. Patents US7,682,290, US7,744,508 or US7,976,435. Invention, those skilled in the field of sports equipment should be able to complete it without excessive experimentation, and the details will not be repeated here.

In this embodiment, the adjustment mechanism 220 is controlled electrically. In other possible embodiments, the position of the movable unit 212 can also be changed manually. The technical content disclosed in the patent US7,654,936 or US7,846,071 can be applied to the present invention as long as there are slight changes.

It should be added that the main advantages of the arrangement of the movable handle 276 in this embodiment are "sturdy and durable", "do not reduce the movement space between the left and right two stand 215", "do not increase the occupied space of the equipment" and "Achieving better ergonomics", in detail, the bearing of the swing track T5' of the movable handle 276 is the position where the top of the swing arm 270 is pivotally connected to the corresponding stand 215. As mentioned above, the swing arm 270 The top end is pivotally mounted on the two fixed pieces 215d, and the two fixed pieces 215d are directly fixed on the stand 215. Under the condition that the two fixed pieces 215d are symmetrical and can share the stress evenly, compared with the U.S. Patent No. 7,153,239, the structure of this embodiment is more obvious. More firm and durable, and the bearing of movable handle 276 is in the same vertical plane with stand 215, rather than the inside or outside of stand 215, just can not influence the movement space of stand 215 inside or increase the occupation on the outside. In addition, as shown in Figure 14 and Figure 15, in a side view, the front end of the second closed trajectory T6' is closer to the front than the third horizontal axis A3', at this time, if a pair of movable handles It is directly located on the top of the corresponding swing arm (refer to U.S. Patent No. 7,153,239). It is conceivable that once the user stands on the sports equipment, the movable grip is on both sides of the body, which is not conducive to the movement of both hands. The movable handle 276 is located at the upper front of the third horizontal axis A3 ′. When the user moves, he can intuitively and comfortably hold the corresponding movable handle 276 directly with both hands, and move smoothly.

Claims (10)

1. a sports equipment, it is characterised in that include:

One support body, has a fixed cell and an active unit, and described fixed cell is arranged at ground, and described active unit is relative to the activity in a range of activity of described fixed cell;

One guiding mechanism, is located at described support body, makes described active unit relative to described fixed cell according to a user regioselective precalculated position in described range of activity;

One crank mechanism, has relative two cranks being hubbed at described support body according to one first transverse axis;

Left and right two reciprocating members, are hubbed at described support body according to one second transverse axis respectively;

Left and right two traces, respectively have one first connecting portion, one second connecting portion higher than described first connecting portion and one the 3rd connecting portion lower than described first connecting portion; Described first connecting portion, the second connecting portion and the 3rd connecting portion relative position on described trace remain unchanged, cannot relative displacement; Described first connecting portion is hubbed at the described crank of correspondence, along the circular trace shuttling movement being the center of circle with described first transverse axis; Described second connecting portion is hubbed at the described reciprocating member of correspondence, moves back and forth between the second switch-back point that of a relatively high first switch-back point and are relatively low along the arching trajectory being the center of circle with described second transverse axis;

Left and right two swing arms, respectively have a top and a bottom, described top and the described bottom relative position in described swing arm remains unchanged, cannot relative displacement, described top is hubbed at described support body according to one the 3rd transverse axis;

Left and right two load bearing arms, respectively have one first position, are positioned at one second position in described first front, position and are positioned at one the 3rd position at described first rear, position; Described first position, the second position and the 3rd position relative position on described load bearing arm remain unchanged, cannot relative displacement; Described first position is hubbed at the bottom of the described swing arm of correspondence, swing with described top for the center of circle, described second position is hubbed at the 3rd connecting portion of the described trace of correspondence, track shuttling movement is closed along one first, track shuttling movement, for carrying the foot of user, is closed along one second in described 3rd position;

Described first, second and third transverse axis, at least one of which is positioned at the active unit of described support body, make when described active unit displacement, relativeness between described first, second and third transverse axis is along with change, and then changes the described second shape closing track or the attitude relative to ground.

2. sports equipment as claimed in claim 1, it is characterised in that: described left and right two reciprocating members are hubbed at the active unit of described support body.

3. sports equipment as claimed in claim 2, it is characterised in that: two cranks of described crank mechanism are hubbed at the active unit of described support body, and, when described active unit displacement, the distance of described first transverse axis and described second transverse axis remains unchanged.

4. sports equipment as claimed in claim 1, it is characterised in that: the straight line defined with two switch-back point of described arching trajectory under side-looking can down pass described circular trace.

5. sports equipment as claimed in claim 4, it is characterised in that: described straight line is approximately through the center of circle of described circular trace.

6. sports equipment as claimed in claim 1, it is characterized in that: the first connecting portion of the described trace under side-looking is to segment length on the distance definition one of the second connecting portion, described first connecting portion is to the distance definition segment length once of the 3rd connecting portion, described lower segment length is more than described upper segment length, and more than the diameter of described circular trace.

7. sports equipment as claimed in claim 6, it is characterised in that: described lower segment length is less than three times of diameter of described circular trace.

8. sports equipment as claimed in claim 1, it is characterized in that: the first switch-back point of the described arching trajectory under side-looking is positioned at the back upper place of the second switch-back point, and, the 3rd connecting portion of described trace is in the rear of the extended line by described second connecting portion to described first connecting portion.

9. sports equipment as claimed in claim 1, it is characterized in that: described second under side-looking is closed track and be positioned at the lower section of described 3rd transverse axis, and, described sports equipment also comprises left and right two rocking bars, wherein one end of each described rocking bar is connected to a precalculated position of the described swing arm of correspondence, described precalculated position is positioned at the predetermined distance below place on described swing arm top, and the other end of each described rocking bar then extends upward, forms the movable handle grasped for a user.

10. sports equipment as claimed in claim 9, it is characterised in that: under side-looking, described movable handle is at the front upper place reciprocating swing of described 3rd transverse axis.