TWI672166B - Leg sports equipment - Google Patents

Abstract

The invention provides a leg sports equipment capable of adjusting a pedal trajectory, which has a frame body stably disposed on the ground, the frame body is provided with a seat set and a rotating mechanism, and the support set can be between a plurality of positions Selecting the positioning, the rotating mechanism has a fixed axis of rotation; a top end of a left swing arm and a right swing arm is pivotally connected to the support set, and a bottom end is provided with a pedal, which can swing forward and backward along a circular arc track; The first end of the connecting rod and the right connecting rod are connected to the rotating mechanism, and can surround the rotating axis along a circular track and remain opposite. The second ends of the two connecting rods are respectively connected to the two swing arms, so that the two The swinging motion of the swing arm is mutually driven; when the position of the aforementioned support group is changed, the relative angles of the front and rear ends of the circular arc track are changed.

Description

Leg sports equipment

The present invention relates to sports equipment and, more specifically, to sports equipment for performing leg movements.

1 and 2 show a disclosed leg exercise device 9 having a left swing arm 95L and a right swing arm 95R. Each swing arm can swing back and forth according to a pivot A of its top end corresponding to the left and right axial directions. Moreover, a left pedal 96L and a right pedal 96R are respectively disposed at the bottom ends of the left swing arm 95L and the right swing arm 95R, and each pedal is along a circle with the pivot axis A as an arc with the swinging motion of the corresponding swing arm. Arc track T displacement; based on the preset stop position, each pedal can be displaced forward (upwardly) up to the front of the arc center, and backward (downward) up to just below the arc center . A linkage mechanism (not shown) is disposed between the two swing arms 95L and 95R, so that one swing arm swings forward and the other swing arm swings backward; when no external force is applied, left and right The two swing arms 95L, 95R will be stabilized in the equilibrium position shown in Figure 1 (that is, the position overlapped in side view). At this time, the left and right two pedals 96L, 96R are located at the front 45 degrees of the arc center. .

As shown in Fig. 2, when the leg sports equipment 9 is used, the user U holds the two hands on the grip group 92 at the front end of the frame 91, and the two feet are stepped on the left and right pedals 96L and 96R, respectively. Move to the ground alternately (downwardly) and press the upper leg (and forward) to lift the leg. During the process, the user can control the movement of the foot by the action of the legs, for example, the pedals 96L, 96R reciprocate between the upper and lower two positions shown in FIG. 2, or the pedals It will fall back to a lower level and rise to a higher level. However, since the left and right two pedals 96L, 96R of the aforementioned leg exercise equipment 9 are reversely and symmetrically displaced with the aforementioned equilibrium position fixed in position, the motion stroke can be changed to some extent, but higher. The relative angle of the pedal and the lower pedal does not change, and the pedal is always displaced along the circular path T between the front and the front of the arc, so the user's motion posture and leg movement are basically There is not much change on it.

The main object of the present invention is to provide a leg sports equipment for the user to perform leg movements in which the feet alternately advance and retreat along a circular path, and the circular path can be adjusted and changed to allow the user to have different postures. And the action performs the aforementioned leg movement, thereby providing a relatively rich exercise pattern and exercise effect.

In order to achieve the above object, according to one aspect of the present invention, a leg sports apparatus is provided comprising: a frame body; a seat set, which is disposed on the frame body in an adjustable position, and can be in a plurality of positions. The left and right swing arms each have an axial center portion and a swinging portion, and the pivot portion is pivotally connected to the support group so that the swing portion can swing forward and backward; the left and right pedals are Each of the pedals is disposed in the swinging portion of the left and right swing arms, and each of the pedals is displaced along a circular arc path having an arc center of the axial center portion along with the swinging motion of the swing arm; a rotating mechanism is provided in the foregoing The frame body has an axis of rotation; the left and right two links each have a first end and a second end, and the first end is connected to the rotating mechanism, and can be along a circular path with respect to the frame body Surrounding the rotation axis, and the first ends of the two left and right links are maintained at a predetermined relative angle by a center of the rotation axis; the second ends of the left and right two links are respectively connected to the left and right swing arms Leaving the aforementioned axis Positioning, wherein the swinging motions of the left and right swing arms are mutually driven by the rotating mechanism; wherein, when the first end of the connecting rod rotates along the circular trajectory for one week, the pedals along the circular arc track Reciprocating between a front end of a track and a rear end of a track; when the position of the support set relative to the frame is changed, the position of the axial center of the left and right swing arms relative to the axis of rotation is followed Change, and the relative angle between the front end of the track of the aforementioned circular path and the rear end of the track will also change.

In order to achieve the above object, in accordance with another aspect of the present invention, a leg sports apparatus is provided comprising: a frame; a seat set disposed on the frame in an adjustable position, in a plurality of positions The positioning is selected between the left and right swing arms, each having an axial center portion and a swinging portion, and the pivot portion is pivotally connected to the support base group, so that the swinging portion can swing forward and backward; the left and right pedals are Each of the pedals is disposed in a swinging portion of the left and right swing arms, and each of the pedals is displaced along a circular arc path having an arc center of the axial center portion along with the swinging motion of the swing arm; a rotating mechanism is disposed at The frame body has an axis of rotation; the left and right links have a first end and a second end, and the first end is connected to the rotating mechanism, and the rotating axis is opposite to the frame body. The center of the rod is displaced, and the first ends of the two left and right links are in the aforementioned rotation axis The line maintains a predetermined relative angle of the center of the circle; the second ends of the left and right two links are respectively connected to the portions of the left and right swing arms that are apart from the axial center portion, so that the swinging motions of the left and right swing arms are respectively Driven by the aforementioned rotating mechanism; wherein the left and right pedals in a side view overlap at an intermediate position on the circular arc track; when one of the pedals is displaced forward from the intermediate position along the circular arc track The other pedal is displaced backward by the aforementioned intermediate position along the circular arc track; when the position of the abutment set relative to the frame is changed, the axial center portions of the left and right swing arms are opposite to the aforementioned axis of rotation. The position will change, and the relative angle between the aforementioned intermediate position and the aforementioned axial portion will also change.

In order to achieve the above object, in accordance with another aspect of the present invention, a leg sports apparatus is provided comprising: a frame body; a seat set on which the first pivot corresponding to the left and right axial directions can be used The shaft is deflected, and then the positioning is selected between the plurality of positions; the left and right swing arms each have an axial center portion and a swinging portion, and the axial center portion is pivotally connected to the support base group, so that the swinging portion can be front and rear Swinging; the left and right pedals are respectively arranged in the swinging portions of the left and right swing arms, and each of the pedals is displaced along a circular arc path with the aforementioned axial center as an arc with the swinging motion of the swing arm. a linkage mechanism having a base portion disposed on the abutment set, and the first pivot axis is deflected according to the first pivot axis with respect to the frame body; the left and right swing arms are dynamically connected via the linkage mechanism The swinging motions of the left and right swing arms are mutually driven; wherein the left and right pedals in a side view overlap at an intermediate position on the circular arc track; when one of the pedals is along the intermediate position The aforementioned arc When the track is displaced forward, the other pedal is displaced backward from the intermediate position along the circular arc track; when the position of the support set relative to the frame is changed, the relative angle between the intermediate position and the axial portion is The change is followed, but the distance between the aforementioned intermediate position and the aforementioned base remains unchanged.

[Fig. 1, Fig. 2: Prior art]

9‧‧‧ Leg sports equipment

91‧‧‧ ‧ frame

92‧‧‧ grip group

95L‧‧‧left swing arm

95R‧‧‧Right swing arm

96L‧‧‧Left pedal

96R‧‧‧Right pedal

A‧‧‧ pivot

T‧‧‧ circular track

U‧‧‧Users

[Fig. 3 to Fig. 6B: First preferred embodiment of the present invention]

100‧‧‧ leg sports equipment

110‧‧‧ ‧ frame

112‧‧‧ bottom

114‧‧‧ front

116‧‧‧ side

118‧‧‧ Fixed seat

120‧‧‧ grip group

130‧‧‧Support group

132‧‧‧ deflection seat

140‧‧‧ drive

150L‧‧‧ left swing arm

150R‧‧‧right swing arm

150'‧‧‧ Left/Right swing arm (internal limit position)

150"‧‧‧ Left/Right swing arm (outer limit position)

160L‧‧‧Left pedal

160R‧‧‧Right pedal

170‧‧‧Rotating mechanism

172‧‧‧ crankshaft

174L‧‧‧ Left crank arm

174R‧‧‧Right crank arm

180L‧‧‧Left Link

180R‧‧‧right link

180'‧‧‧Left/Right Link (Internal Limit Position)

180”‧‧‧Left/Right Link (outer limit position)

A1‧‧‧ first pivot

A2‧‧‧ second pivot

A3‧‧‧ third pivot

A4‧‧‧ fourth pivot

A5‧‧‧ fifth pivot

A5’‧‧‧ fifth pivot (internal limit position)

A5”‧‧‧ fifth pivot (outer limit position)

Limit arc in C1‧‧

C2‧‧‧ outer limit arc

E1‧‧‧ track front end

E2‧‧‧ Track backend

H‧‧‧ water level

L‧‧‧ connection line

O‧‧‧round track center

T1‧‧‧ circular track

T2‧‧‧round track

T3‧‧‧ circular track

[Fig. 7 to Fig. 10: Second preferred embodiment of the present invention]

200‧‧‧ leg sports equipment

210‧‧‧ ‧ body

212‧‧‧ bottom

214‧‧‧ front

216‧‧‧ side

217‧‧ ‧ guide slot

218‧‧‧ fixed seat

220‧‧‧ grip group

230‧‧‧Support group

232‧‧‧ translation seat

250L‧‧‧ left swing arm

250R‧‧‧right swing arm

260L‧‧‧left pedal

260R‧‧‧Right pedal

270‧‧‧Rotating mechanism

272‧‧‧ crankshaft

274L‧‧‧ Left crank arm

274R‧‧‧Right crank arm

280L‧‧‧Left Link

280R‧‧‧right link

A6‧‧‧ pivot

A7‧‧‧ pivot

A7’‧‧‧ pivot (internal limit position)

A7”‧‧‧ pivot (outer limit position)

Limit arc in C3‧‧

C4‧‧‧ outer limit arc

E3‧‧‧ Track front end

E4‧‧‧Track backend

T4‧‧‧ circular track

T5‧‧‧round track

T6‧‧‧ circular track

1 is a perspective view of a conventional leg exercise device; FIG. 2 is a left side view of the leg exercise device of FIG. 1 (but with different pedal positions), and illustrates a user's leg movement; FIG. 3 is the present invention. A left side view of the leg sports equipment of the first preferred embodiment, wherein the abutment group is in the first position; FIG. 4A is similar to FIG. 3, but the left and right two pedal positions are overlapped in a side view; Figure 5A is similar to Figure 3, but with the support group in the second position and the left and right two pedal positions overlapping in side view; Figure 6A is similar to Figure 3, but the support group is in the third position. And the left and right two pedal positions overlap in a side view; FIGS. 4B, 5B, and 6B correspond to FIGS. 4A, 5A, and 6A, respectively, showing the position of the support group in the first, second, and third positions, respectively. The pedal swing range and its geometric principle; FIG. 7 is a left side view of the leg sports equipment according to the second preferred embodiment of the present invention, wherein the support group is in the first position; FIG. 8 is similar to FIG. 7, but left and right. The pedal position is overlapped in side view; Figure 9 is similar to Figure 7, but the seat set is in the second position, and the left and right pedal positions are overlapped in side view; Figure 10 is similar to Figure 7, but The support group is in the third position, and the left and right pedal positions are overlapped in the side view.

Referring to FIG. 3, the leg exercise equipment 100 of the first preferred embodiment of the present invention has a frame body 110 stably disposed on the ground, and includes a bottom portion 112, a front portion 114, and left and right sides fixed to each other. The two side portions 116 (note: the left and right two side portions 116 overlap in a side view, only the left side portion 116 can be seen in the figure). The user can enter or backward through the rear end of the frame body 110 to move out of the space (substantially the space between the bottom 112 of the frame body 110 and the left and right sides 116). A grip set 120 is provided at the top end of the front portion 114 of the frame body 110 for the user in motion to hold.

The frame body 110 is provided with an adjustable position of the support set 130. In the present embodiment, the support set 130 is composed of two oppositely facing two deflecting seats 132 (note: the left and right two deflecting seats 132 overlap in a side view) Only the left deflection seat 132 can be seen in the figure. Each of the deflection seats 132 has a longitudinal shape, and the bottom ends of the left and right deflection seats 132 are respectively pivotally connected to the frame according to a first pivot A1 corresponding to the left and right axial directions. The left and right sides 116 of the body 110 change the position of the support set 130 (ie, the left and right two deflecting seats 132) relative to the frame body 110 according to the first pivot axis A1, which is specifically represented by the deflecting seat 132. Top and rear displacement.

A driving device 140 is disposed between the support group 130 and the frame body 110 (note: a block schematically in the figure), which can drive the bearing block 130 to change its position relative to the frame body 110, and The support set 130 is positioned at one of a plurality of predetermined positions. In the present embodiment, the driving device 140 can drive the left and right two deflecting seats 132 to be synchronously deflected according to the first pivot A1, and the deflecting seat 132 is positioned at The first position shown in Figures 3 and 4A, the second position shown in Figure 5A, or the third position as shown in Figure 6A. From the aforementioned first to second to third positions, the tip end of the deflecting seat 132 is gradually displaced forward.

The specific structure of the foregoing driving device 140 may be appropriately selected from the prior art. For example, US Patent No. 7,682,290, the sports equipment (100) of FIGS. 1 to 4 has left and right two deflection seats (142). Brackets refer to the reference numerals in the case, the same applies below, and the driving device (145) is disposed at the center of the bottom of the frame body, and includes a motor (146), a screw (147) and a screw (148) for controlling the motor ( 146) Forward or reverse rotation can push forward or backward to push a crossbar (143) connecting the bottom ends of the two deflection seats (142), so that the left and right deflection seats (142) are synchronously deflected, and the motor (146) is stopped. Then, the deflection seat (142) is fixed; or, in another sports equipment (300) of the same patents of FIGS. 14 to 16, the driving device includes two left and right driving units (345) for synchronous action, and each driving unit (345) The utility model comprises a motor (346), a screw (347) and a screw (348) for pushing and pulling the bottom end of the deflection seat (342) of the corresponding side. Of course, in addition to the above two types, various electronic control mechanisms that can change the angle of the drive member can serve as the driving device 140 in this embodiment.

The leg exercise equipment 100 of the present embodiment is provided with an electronic control interface (not shown) through which the user can control the drive unit 140 to change the position of the support set 130.

Depending on the design requirements, the leg sports equipment of the present invention may not have the aforementioned drive means. Instead, the support set is designed to be manually adjustable, for example, similar to the configuration of the aforementioned set of supports 130, each of the deflecting seats 132 and the corresponding side One of the portions 116 is provided with an operable latch, and the other is provided with a plurality of jacks, and the user can pull the latch away from the jack to move the deflecting seat 132 to the desired position and then insert the latch into the corresponding jack to fix Deflection seat 132.

The left and right two swing arms 150L and 150R are suspended from the support group 130 (ie, the left and right second deflection seats 132), and each of the swing arms 150L and 150R has a top end and a bottom end, respectively serving as an axial center portion and In a swaying portion, the axial center portion is pivotally connected to the top end of the corresponding deflection seat 132 according to a second pivot axis A2 corresponding to the left and right axial directions, so that the swaying portion can swing forward and backward. In another embodiment of the present invention (not shown), the swinging motion of the swing arm includes a left and right displacement amount. For example, the bottom end is displaced toward the inner side while being displaced forward, and is displaced toward the outer side at the same time.

The left end of the left swing arm 150L and the right swing arm 150R are respectively provided with a left pedal 160L for supporting the left foot of the user and a right pedal 160R for supporting the right foot of the user. In this embodiment, each pedal 160L, The 160R is pivotally connected to the bottom end of the corresponding swing arm 150L, 150R according to a third pivot A3 corresponding to the left and right axial directions, and can be appropriately deflected with respect to the swing arm to enable the angle of the foot when the user moves. Each of the pedals 160L, 160R is displaced along a circular arc path T1 with the aforementioned axial center portion (second pivot axis A2) as an arc with the swinging motion of the swing arms 150L, 150R (Note: the third pivot is shown in the figure) The axis A3 is regarded as the center of the pedal and the aforementioned circular path T1) is plotted.

The front end of the front portion 114 of the frame body 110 has a fixing base 118. The fixing base 118 is provided with a rotating mechanism 170, which includes a crank shaft 172 and two left and right crank arms 174L and 174R. The crank shaft 172 has an axis corresponding to the axis. The left and right axial arms are pivotally mounted on the fixed base 118, and the left and right crank arms 174L and 174R are respectively fixed to the left and right ends of the crankshaft 172, and the outer ends of the two crank arms 174L and 174R are crankshafts. The axis of 172 (hereinafter referred to as the axis of rotation) is 180 degrees relative to the center of the circle.

A left link 180L and a right link 180R are connected between the rotating mechanism 170 and the left and right swing arms 150L, 150R. Specifically, the first ends of the links 180L, 180R (in this example, the front end) respectively A fourth pivot A4 is pivotally connected to the outer ends of the crank arms 174L, 174R on the corresponding sides, so as to be displaced with respect to the frame body 110 by the rotation axis; the second ends of the links 180L, 180R (this example) a rear end) is pivotally connected to a portion of the swing arm 150L, 150R of the corresponding side at an appropriate distance from the top end (axial portion) by a fifth pivot A5, whereby the swing arms 150L, 150R and the crank of the same side are The arms 174L, 174R will drive each other, and the swinging motions of the left and right swing arms 150L, 150R are mutually driven by the rotating mechanism 170. Basically, when one swing arm swings forward, the other swing arm swings backward.

In the present embodiment, the crank arms 174L, 174R of the rotating mechanism 170 are free to rotate 360 degrees. In other words, the first ends of the links 180L, 180R can surround the aforementioned axis of rotation along a circular path T2. While the first ends of the links 180L, 180R are rotated one round along the circular path T2, the swing arms 150L, 150R swing back and forth once, that is, the pedals 160L, 160R along the aforementioned circular path T1 at the front end E1 of the track The track rear end E2 reciprocates once. As shown in FIG. 4A, in the side view, the left and right two pedals 150L, 150R overlap at an intermediate position on the circular arc track T1, and when one of the pedals is displaced forward by the intermediate position along the circular arc track T1, The other pedal is displaced rearward along the circular path T1 by the aforementioned intermediate position. From the aforementioned intermediate position to the front end of the track The distance between E1 and the trailing end E2 may not be equal. When one of the pedals is at one end of the circular path T1, the other pedal is located almost at the other end of the circular path T1.

In other embodiments of the present invention (not shown), it is possible to limit the range of rotation of the crank arm (or the swing range of the swing arm) by providing the stopper so that the first end of the link can be centered on the aforementioned axis of rotation. Displacement, but can not completely surround the week; even so, each pedal can reciprocate along a circular arc track, and the left and right pedals will overlap at an intermediate position on the arc track. In addition, even if the first ends of the left and right two links are not 180 degrees with respect to the center of the rotation axis, it may be configured such that when one of the pedals is displaced forward by the intermediate position, the other pedal is moved from the intermediate position Post displacement.

4B is a schematic view showing the positional relationship of the main components of the leg sports equipment 100 in the state of FIG. 4A. In FIG. 4B, the center of the circular path T2 (ie, the aforementioned axis of rotation) is marked as O, and the arcs C1 and C2 are respectively referred to as The inner limit arc and the outer limit arc, the two arcs C1 and C2 are both centered on the rotation axis O, and the radius of the inner limit arc C1 is "the length of the link minus the radius of the circular path T2", the outer limit The radius of the arc C2 is "the length of the link plus the radius of the circular path T2", wherein "the length of the link" is defined as the fourth pivot A4 of the first end of the links 180L, 180R and the second end The distance between the five pivots A5; based on the geometry, when the swing arms 150L, 150R swing forward and backward, the portion corresponding to the fifth pivot A5 can only follow a circular arc track T3, the inner limit arc C1 and the outer limit arc. The movement between C2, in particular, the intersection A5' of the circular path T3 and the inner limit arc C1, that is, the position at which the fifth pivot A5 can be closest to the rotational axis O (Note: the imaginary line 180 in the figure) 'As shown, when the first end and the second end of the connecting rod 180' are located at the positions A4' and A5', respectively, the A4', O and A5' rows A straight line), in contrast, the intersection A5" of the circular arc track T3 and the outer limit arc C2, that is, the position at which the fifth pivot A5 can be farthest from the rotational axis O (note: imaginary line 180 in the figure) When the first end and the second end of the connecting rod 180" are respectively located at positions A4" and A5", O, A4" and A5" are arranged in a straight line; as shown by the imaginary line 150' in the figure, when When the five pivots are in the inner limit position A5', the swinging portion at the bottom end of the swing arm 150' is correspondingly located at the front end E1 of the circular arc track T1, as opposed to the imaginary line 150" in the figure, when the fifth pivot When the axial position is at the position of A5", the swinging portion at the bottom end of the swing arm 150" corresponds to the rear end E2 of the circular arc track T1.

When the foregoing bearing set 130 is positioned at the first position as shown in FIG. 3 and FIG. 4A, the front end E1 and the rear end E2 of the circular arc track T1 of the pedals 160L and 160R are respectively located at the axial centers of the swing arms 150L and 150R. Directly forward and directly below the second portion (second pivot A2), the front end E1 of the track is opposite to The elevation angle of the trailing end E2 (i.e., the angle θ 1 between the connecting line L and the horizontal plane H of the two E1 and E2 shown in Fig. 4B) is about 45 degrees. The intermediate position in which the left and right two pedals 160L and 160R overlap in the side view is located at the front lower side of the axial center portion, and the relative depression angle (that is, θ 2 in FIG. 4B) is about 48 degrees.

5B and FIG. 6B are schematic diagrams showing the positional relationship of the main components of the leg sports equipment 100 in the state of FIGS. 5A and 6A, respectively, wherein C1, C2, T3, A5', A5", L, and θ2 are defined as before. Because the position of the pivot portion of the swing arms 150L, 150R relative to the aforementioned rotational axis changes as the position of the support set 130 relative to the frame 110 changes, the relative positions of the aforementioned A5', A5", E1, and E2 are changed. In addition, when the support group 130 is changed from the first position to the second position as shown in FIG. 5A and FIG. 5B, the front end E1 of the track is relatively lowered, and the rear end E2 of the track is relatively moved backward. The elevation angle of the front end E1 with respect to the trailing end E2 (hereinafter referred to as the trajectory angle value) is about 21 degrees, and the depression angle of the intermediate position with respect to the axial center portion (hereinafter referred to as the median angle value) is about 64 degrees; when the support group When the 130 position is in the third position as shown in FIG. 6A and FIG. 6B, the front end E1 of the circular arc track T1 is at a lower position, and the rear end E2 is at a lower position, and the aforementioned trajectory angle value is about 5 degrees, the aforementioned median. The angle value is approximately 75 degrees.

Based on the structure and principle of the upper leg exercise equipment 100, the user can adjust the position of the support set 130 to change the movement trajectory and relative relationship of the left and right two pedals 160L, 160R to enable different postures and actions. Perform leg movements. For example, when the support set 130 is positioned at the first position as shown in FIG. 4A, the front and rear ends E1 and E2 of the circular path T1 of the pedals 160L, 160R are respectively located at the arc center (ie, the second pivot) The front and the right side of the axis A2), and the intermediate position where the left and right two pedals 160L, 160R are overlapped are substantially located at the front 45 degrees of the arc center, so that the user can be similar to that shown in FIG. Using the posture and movement of the conventional leg exercise equipment 9, the leg exercise equipment 100 in the state of FIG. 4A is used, that is, the user holds the two hands on the grip group 120 at the front end of the frame body 110, and the feet are stepped on separately. On the left and right two pedals 160L, 160R, the movements of the legs are pressed back and down (simultaneously) in the opposite direction (in the opposite direction), and the movement of the legs can be performed by the legs. Controlling the movement stroke of the foot; when the support set 130 is positioned at the third position as shown in FIG. 6A, although the arc of the circular path T1 of the pedals 160L, 160R is also about 90 degrees, the front end E1 of the track is lowered and the track is lowered. The rear end E2 moves backward, the front end E1 is only slightly higher than the rear end E2, and the left and right two pedals 160L, 160R side view The aforementioned intermediate position of the lower overlap is closer to the arc center of the circular path T1, so that the user can carry the feet in the lower part The leg movements alternately advancing and retreating along the concave curved path, and the inclination of the body forward is large when moving, and the leg is extended backward by the kick; when the support set 130 is positioned as shown in FIG. 5A In the two positions, the posture and action by which the user performs the leg movement may be between the above two states. Of course, the present invention enables the support set to be positioned at more locations, and/or the positional gap is smaller for the user to select and adjust according to individual needs.

In the structure of the upper leg sports equipment 100, the user performs the aforementioned leg movement between the swing arm 150L on the left side, the link 180L and the swing arm 150R on the right side, and the link 180R, and before and after the exercise. The movement space is entered and exited by the rear end of the frame body 110.

7 is a leg exercise device 200 according to a second preferred embodiment of the present invention, which also has a frame body 210, a seat set 230 disposed on the frame body 210 in an adjustable position, suspended from the support. The left and right swing arms 250L, 250R on the group 230, the left and right pedals 260L, 260R respectively disposed at the bottom ends of the left and right swing arms 250L, 250R, a rotating mechanism 270 disposed on the frame 210, and The left and right two links 280L, 280R are connected between the rotating mechanism 270 and the left and right second swing arms 250L, 250R. The frame 210 also has a bottom portion 212, a front portion 214, and left and right side portions 216 (note: the left and right side portions 216 overlap in a side view, only the left side portion 216 can be seen in the figure). The top of the front portion 214 is also provided with a grip set 220.

The larger difference from the previous embodiment is that the support set 230 in this embodiment is composed of two opposite translation seats 232 (note: the left and right translation seats 232 overlap in side view, only in the figure Seeing the left translation seat 232), each of the translation seats 232 is block-shaped and can be displaced back and forth along a guide groove 217 on the side portion 216 of the frame 210 of the corresponding side. The support set 230 (ie, the left and right translation seats 232) can be selectively positioned in a first position as shown in FIGS. 7 and 8, a second position as shown in FIG. 9, or as shown in FIG. Three positions. Depending on the design requirements, the set of bearings 230 may be driven by a drive (not shown) or may be manually adjusted.

The top ends (shaft portions) of the swing arms 250L, 250R are pivotally connected to the corresponding translation seats 232 according to a pivot A6, so that the bottom ends (swing portions) of the swing arms 250L, 250R can swing back and forth, and the pedals 260L, 260R It can be displaced along a circular arc track T4 with the aforementioned pivot axis A6 as the arc center. The rotating mechanism 270 in this embodiment is disposed on the fixing base 218 at the front end of the bottom portion 212 of the frame body 210, but has the same structure as the front, and includes a crank shaft 272 and left and right crank arms 274L and 274R. The first ends of the links 280L, 280R are pivotally connected to the outer ends of the corresponding crank arms 274L, 274R, and can surround the crank shaft 272 along a circular path T5; the second ends of the links 280L, 280R are based on a pivot A7. Pivot in the corresponding swing arm Below the top of the 250L, 250R, it can be displaced along a circular arc path T6.

As shown in FIGS. 8 to 10, when the position of the holder set 230 with respect to the frame body 210 is changed, since the axial center portions of the swing arms 250L, 250R (ie, the arc centers of the circular arc tracks T4, T6) are relative to the crank shaft, (ie, the center of the circular trajectory T5) will change, so the relative positions of the front end E3 of the circular path T4 of the pedals 260L, 260R and the rear end E4, and the left and right two pedals 260L, 260R overlap in the side view. The location will also change. For the geometric principle, reference may be made to the descriptions of FIG. 4B, FIG. 5B and FIG. 6B above, and details are not described herein again (note: C3, C4, A7' and A7 in FIG. 8 to FIG. 10), and the meanings are the same as those in the figure. Among C4, C1, C2, A5' and A5").

According to another aspect of the present invention, a leg sports apparatus (not shown), wherein the support set is deflectable on the frame body according to a first pivot corresponding to the left and right axial directions, and further at a plurality of positions (angles) The left and right swing arms pivotally connect the axial center portion thereof to the aforementioned support group, so that the swing portion can swing forward and backward; the second swing arm is dynamically connected via a linkage mechanism, so that the swinging arms of the two swing arms are swinged. The interlocking mechanism includes a crank shaft, two left and right crank arms, and two left and right links. The crank shaft is pivotally disposed on the support base according to a rotation axis, and becomes a base on the support group. The base portion is deflected according to the first pivot axis with respect to the frame body; the two crank arms are fixed on the crank shaft; the first ends of the two links are respectively connected to the two crank arms, and can be opposite The second end of the two connecting rods is respectively connected to a portion of the second swing arm that is away from the axial center; the left and right two pedals are respectively disposed at the left and right swing arms. Swinging, will follow along the The axial center portion is an arc track displacement of the arc center; wherein the left and right pedals in the side view overlap at an intermediate position on the circular arc track, and one of the pedals advances along the circular path from the intermediate position When the displacement is performed, the other pedal is displaced backward along the circular arc track by the intermediate position; when the position (angle) of the support group relative to the frame body is changed, the relative angle between the intermediate position and the axial center portion is changed. However, the distance between the aforementioned intermediate position and the aforementioned base portion remains unchanged.

The leg exercise equipment of the present invention may include a resistance device (not shown) for generating a resistance to the swing of the swing arm. The resistance device is coupled to the support set and is displaced with respect to the frame of the support. .

Claims (8)

A leg sports equipment comprises: a frame body; a seat set, which is arranged on the frame body in an adjustable position manner, and can be positioned between the plurality of positions; the left and right swing arms each have a a shaft portion and a swinging portion, and the pivot portion is pivotally connected to the support group, so that the swinging portion can swing forward and backward; the left and right pedals are respectively disposed in the swinging portions of the left and right swing arms, Each of the pedals is displaced along a circular arc path having an arc center of the axial center along with the swinging motion of the swing arm; a rotating mechanism is disposed on the frame body and has an axis of rotation; The rods each have a first end and a second end, and the first end is connected to the rotating mechanism, and can surround the rotating axis with respect to the frame body along a circular path, and the left and right two links The first end is maintained at a predetermined relative angle by a center of the rotation axis; the second ends of the left and right two links are respectively connected to the left and right swing arms away from the axial center portion, so that the left and right sides are The swinging motion of the second swing arm is via the foregoing The moving mechanism is driven by each other; wherein, when the first end of the connecting rod rotates along the circular trajectory for one week, the pedal reciprocates along the circular arc track between a front end of the track and a rear end of a track; When the position of the abutment set relative to the frame body is changed, the positions of the axial center portions of the left and right swing arms with respect to the rotation axis are changed, and the front end of the track of the circular arc track is opposite to the rear end of the track. The angle will also change. The leg sports equipment of claim 1, wherein when the abutting set is positioned at a first position relative to the frame body, a front end of the arc track is higher than a track rear end, and the front end of the track is opposite The elevation angle of the rear end of the trajectory is defined as a first trajectory angle value; when the pedestal set is positioned at a second position relative to the frame body, the trajectory front end of the circular arc trajectory is higher than the trajectory rear end, and the foregoing The magnitude of the elevation of the trajectory front end relative to the rear end of the trajectory is defined as a second trajectory angle value; the second trajectory angle value is smaller than the first trajectory angle value. The leg exercise device of claim 2, wherein when said abutment set is positioned at said second position The height of the front end of the trajectory is lower than the height of the front end of the trajectory when the pedestal set is positioned at the first position; and the position of the rear end of the trajectory when the pedestal is in the second position The position of the trailing end of the aforementioned trajectory when the aforementioned support group is in the aforementioned first position is located further rearward. A leg sports equipment comprises: a frame body; a seat set, which is arranged on the frame body in an adjustable position manner, and can be positioned between the plurality of positions; the left and right swing arms each have a a shaft portion and a swinging portion, and the pivot portion is pivotally connected to the support group, so that the swinging portion can swing forward and backward; the left and right pedals are respectively disposed in the swinging portions of the left and right swing arms, Each of the pedals is displaced along a circular arc path having an arc center of the axial center along with the swinging motion of the swing arm; a rotating mechanism is disposed on the frame body and has an axis of rotation; The rods each have a first end and a second end, and the first end is connected to the rotating mechanism, and is displaceable with respect to the frame body by the rotation axis, and the first ends of the left and right two links Maintaining a predetermined relative angle with the rotation axis as a center; the second ends of the left and right two links are respectively connected to the left and right swing arms away from the axial center portion, so that the left and right swing arms are respectively Swinging motion through the aforementioned rotating machine Driving each other; wherein the left and right pedals in a side view overlap at an intermediate position on the circular arc track; when one of the pedals is displaced forward by the intermediate position along the circular arc track, another The pedal is displaced backward by the aforementioned intermediate position along the circular arc track; when the position of the abutment set relative to the frame is changed, the positions of the axial center portions of the left and right swing arms are changed with respect to the rotation axis. And the relative angle between the aforementioned intermediate position and the aforementioned axial portion also changes. The leg exercise equipment of claim 4, wherein when the abutment set is positioned at a first position relative to the frame body, the intermediate position is located immediately below the axial center portion, and the intermediate position at this time The magnitude of the depression angle with respect to the aforementioned axial center portion is defined as a first median angle value; when the aforementioned support group is positioned at a second position with respect to the aforementioned frame body, the intermediate position is located directly below the axial center portion, The intermediate position at this time is at a depression angle with respect to the aforementioned axial portion The size is defined as a second median angle value; the aforementioned second median angle value is greater than the aforementioned first median angle value. The leg exercise equipment of claim 4, wherein the first end of each of the links is capable of surrounding the rotation axis along a circular path; and the first end of the link is rotated one round along the circular path The pedal reciprocates once between the front end of the track and the rear end of a track along the circular arc track; when the position of the support set relative to the frame changes, the front end of the track of the circular track and the track The relative angle of the end will change. The leg sports equipment of claim 1 or 4, wherein the leg sports equipment further comprises a resistance device for generating a resistance that hinders the swinging of the left and right swing arms; and the resistance device is coupled to the support group. The displacement of the aforementioned support set relative to the aforementioned frame body. The leg sports equipment of claim 1 or 4, wherein the frame body further comprises a grip group, wherein the grip group is located in front of the axial center portions of the left and right swing arms; when the support groups are opposite When the position of the frame body is changed, the distance between the axial center portion of the left and right swing arms and the grip group may be changed.