CN105983211B - leg lifting machine - Google Patents

Abstract

The invention provides a leg lifting machine which comprises a frame body, a sliding rail, a sliding part, a linkage rail and a linkage part. The rack body comprises an arc-shaped path and a magnetic seat, the arc-shaped path is provided with an arc center, a magnetic field is arranged in the magnetic seat, and the magnetic seat reciprocates along the arc-shaped path. The slider includes a stepped rail, the slider being limited in displacement and positioned on the sliding track. The extending direction of the linkage track is perpendicular to the virtual tangent line of the arc-shaped path. The linkage member is limited in displacement and positioned on the linkage track, and the linkage member comprises a sliding block, a metal part and an elastic part. The sliding block is vertically displaced along the virtual tangent line and corresponds to the arc center, so that the depth of the metal part entering the magnetic field is changed. The leg lifting machine of the invention utilizes the variable depth of the magnetic field and the metal part to adjust the eddy current effect, thereby further adjusting the magnetic resistance of leg lifting movement. The elastic part can float and reduce abrasion.

Description

leg machine

technical field

The present invention relates to a fitness equipment, and in particular to a leg raising machine.

Background technique

Fitness equipment solves the problem of sports being limited by weather or venues, and has therefore become the preferred choice for busy modern people. Among all kinds of fitness equipment currently on the market, steppers and treadmills are the most common types, because stepping and running are whole-body exercises, which can consume calories and tighten muscles on the one hand, and help strengthen the heart muscle, Increase lung capacity. However, when a general user uses a stepper or treadmill, no matter it is based on usage habits or machine design, most of them will not have the opportunity to raise their thighs. Therefore, the effect of muscle strength improvement or curve sculpture is mostly concentrated on The area below the calf.

In contrast to the common warm-up methods on the sports field, leg raising exercises can effectively stretch the abdomen, buttock muscles and hip joints and other areas that are not easy to move or exercise, and leg raising exercises can also achieve the effect of consuming calories and tightening muscles , like the effect of stepping or running. At present, the authorized announcement number of fitness equipment that can perform leg raising training on the market is CN 203342290U. It uses the combination of chains, flywheels and eddy current resistors to achieve leg raising movements. The chain is used to link the pedals and flywheels. The flywheel exerts resistance and controls the inertia of the pedals through the resistance, so that the user can obtain the feeling and effect similar to the actual leg raising exercise when using the leg raising machine for leg raising training. However, the flywheel must use the electricity of the eddy current resistor to adjust the resistance. The system of adjusting the resistance by the electricity will not only increase the manufacturing cost of the leg lifter, but also the use of electricity will waste energy and limit the installation position of the user.

In addition, the chain in the prior art will generate noise and vibration during the pedal movement, which will not only increase the user's discomfort, but also cause the leg lifter to shake. On the other hand, chains, eddy current resistors and flywheels all require extra manpower maintenance to maintain normal operation, which greatly increases the cost of follow-up maintenance and repair of the leg lifter. It can be seen that there is currently a lack of a low-cost, low-noise leg lifter that can stably adjust resistance in the market, so relevant researchers are looking for a solution.

Contents of the invention

Therefore, the object of the present invention is to provide a leg raising machine, which uses the variable depth between the magnetic field and the metal part to adjust the eddy current effect, and then makes the pedals in the displacement produce variable magnetic resistance, which can not only adjust the resistance but also There is no need to use an electric system, and it can also produce the same feeling and effect as the actual leg raising exercise. Furthermore, the elastic part can reduce the force of friction between the metal part and the magnetic base caused by the displacement of the metal part by external force. This floating spring mechanism can not only greatly reduce the wear of the wear-resistant pad and reduce the maintenance cost, but also reduce the generation of friction noise, thereby improving the comfort of the user during exercise. In addition, the left and right cranks coaxially pivoted on the center of the arc can perform interlocking movement in opposite directions of rotation, which fully conforms to the relative swing of the left and right legs of the human body.

One embodiment of the present invention is a leg raising machine, which includes a frame body, a slide track, a slide piece, a linkage track and a linkage piece. The frame body includes an arc path, an arc center, and a magnetic seat. There is a magnetic field in the magnetic seat, and the magnetic seat moves back and forth along the arc path with the arc center as a center point. The sliding track is arranged on the frame body. The sliding part includes a staged clamping rail, the displacement of which is limited and positioned on the sliding track, and the stepped clamping rail is provided with a plurality of clamping positions corresponding to the arc-shaped path, and the distances between each clamping position and the sliding track are different. The interlocking track is arranged on the frame body, and the extending direction of the interlocking track is perpendicular to the virtual tangent line of the arc path. The extending direction of the interlocking track intersects with the extending direction of the sliding track to form an included angle. The linkage member is limited in displacement and positioned on the linkage track. The linkage includes a slider and a metal part, wherein the metal part is in contact with the magnetic field and is linked by the slider. And the slider can be selectively positioned at one of the clamping positions. The slider moves along the sliding track to move the slider, and the slider moves perpendicular to the virtual tangent line and corresponds to the center of the arc, so that the depth of the metal part entering the magnetic field changes.

In this way, the leg raising machine of the present invention uses the relative motion between the magnetic field and the metal parts at different depths to adjust the eddy current effect, and then makes the pedals in the displacement produce variable magnetic resistance, so as to obtain adjustable resistance and actual leg raising motion Similar feelings and effects. Furthermore, the interlocking track and the sliding track make the sliding part effectively involve and drive the interlocking part, so that when the external force pushes and pulls the sliding part to drive the interlocking part, the metal part can be displaced up and down, and the depth and area of the metal part entering the magnetic field can be changed accordingly. Adjust the resistance to pedaling on the leg raiser. In addition, the step-by-step clamping rail makes the handle and the metal part produce multiple stages. It not only has a simple structure, allowing users to choose the pedaling resistance that suits them, but also avoids the use of chains, eddy current resistors or flywheels, greatly reducing the leg lift machine. manufacturing cost and reduce noise.

Other examples according to the foregoing embodiment are as follows: the aforementioned metal portion may include an arc-shaped magnetic section area, the arc-shaped magnetic section area is in contact with a magnetic field, and the arc-shaped magnetic section area has an arc-shaped magnetic section area, and the arc-shaped magnetic section area is the same as the aforementioned Depth is proportional. Furthermore, the above-mentioned step clamping rail may be in the shape of a hollow stepped slot. The stage clamping rail includes at least one sliding channel, and the sliding channel communicates with the clamping positions. Each clamping position has two positioning planes, and the slider correspondingly has two slider planes, and each clamping position respectively contacts the two slider planes through the two positioning planes, so that the slider engages the slider. The two positioning planes are parallel to each other, the two slider planes are parallel to each other, and both the two positioning planes and the two slider planes are parallel to the virtual tangent line. In addition, the aforementioned sliding element may include concave-convex parts, and the aforementioned linking element may include a stage fixing unit. Wherein the concave-convex portion has a plurality of recesses, and each recess corresponds to one of the clamping positions of the step clamping rail. The rank fixing unit includes at least one spring, a roller and a fixing shell. Wherein, the limit roller of the fixed shell fits and rolls on the concave-convex part with the force of the spring, so that the roller stably positions the slider at any clamping position. In addition, the aforementioned sliding element may include concave-convex parts, and the aforementioned linkage element may include a position fixing unit. Wherein the concave-convex portion has a plurality of recesses, and each recess corresponds to one of the clamping positions of the step clamping rail. The rank fixing unit includes a solid lock seat and a concave shrapnel. Wherein the fixed lock seat is fitted and displaced on the concave-convex portion by the elastic force of the concave elastic piece, and the concave elastic piece is stably positioned in each concave portion, so that the slider is positioned at any clamping position. Furthermore, the aforementioned included angle may be greater than 60 degrees and less than 120 degrees, and the preferred included angle is 90 degrees. A wear-resistant pad is provided on the corresponding metal part of the aforementioned magnetic base, and the magnetic base also includes two magnets, and the wear-resistant pad is located on the surface of the magnets.

In addition, the aforementioned leg raising machine may include a pull handle and a linkage rod. The pull handle drives the linkage rod with a lever mechanism, and the linkage rod is pushed and pulled by the pull handle. The aforementioned frame body may include a bracket, a handle, a rotating shaft and two cranks. Wherein the handrail is arranged at the front upper end of the support. The rotating shaft is arranged on the bracket and located at the center of the arc, and the two cranks are respectively pivoted on both sides of the rotating shaft and move in opposite directions. One end of each crank is provided with a magnetic seat, and each crank swings along an arc path with the arc center as the center point. The arc path includes a first arc length and a second arc length, the first arc length extends from a virtual plumb line passing through the rotating shaft, and the arc of the first arc length ranges from 40 degrees to 100 degrees. The second arc length is connected to the first arc length, and the second arc length extends backward from the virtual plumb line. The arc of the second arc length is greater than 0 degrees and less than or equal to 10 degrees.

Through the above-mentioned embodiments, the size of the arc-shaped magnetic-cut area contacting the magnetic field will cause the change of the eddy current effect, and then lead to the change of the magnetic resistance. Users can adjust resistance and generate resistance without matching power system and power supply. Furthermore, the left and right cranks coaxially pivoted on the center of the arc can perform interlocking movement in opposite directions of rotation, matching the arcs of the first arc length and the second arc length, which is very consistent with the relative swing of the human body's left and right legs. In addition, the rank fixing unit is easy to stay in the recess of the concave-convex part, so that the ranks of the linkage and the handle can be more clearly defined. In addition, the shape of the step-by-step clamping rail is matched with the positioning plane and the plane of the slider to enable the slider to be stably engaged at the clamping position.

Another embodiment of the present invention is a leg raising machine, which includes a frame body, a sliding track, a sliding part, a linking track and a linking part. The frame body includes an arc path, an arc center, and a magnetic seat. There is a magnetic field in the magnetic seat, and the magnetic seat moves back and forth along the arc path with the arc center as a center point. Furthermore, the sliding track is arranged on the frame body and the extension direction of the sliding track is parallel to the virtual tangent line of the arc path. The sliding part comprises a stage clamping rail, and the sliding part is limited in displacement and positioned on the sliding track. The stage clamping rail is provided with a plurality of clamping positions corresponding to the arc path, and the distance between each clamping position and the sliding track is different. In addition, the interlocking track is arranged on the frame body, and the extending direction of the interlocking track and the extending direction of the sliding track are perpendicular to each other. The linkage member is limited in displacement and positioned on the linkage track. The linkage includes a slider, a metal part and an elastic part. The metal part is in contact with the magnetic field and is linked by the slider, and the slider can be selectively positioned at one of the clamping positions. The slider moves parallel to the virtual tangent line to move the slider, and the slider moves perpendicular to the virtual tangent line to move the elastic part and corresponds to the arc center. The elastic part connects and drives the metal part, causing the depth of the metal part to enter the magnetic field to change.

In this way, the leg raising machine of the present invention uses the relative motion between the magnetic field and the metal part to generate eddy current effect, and then makes the pedals in the displacement produce variable magnetic resistance, so as to obtain the feeling similar to the actual leg raising movement and Effect. Furthermore, the interlocking track and the sliding track make the sliding part effectively involve and drive the interlocking part, so that when the external force pushes and pulls the sliding part to drive the interlocking part, the metal part can be displaced up and down, and the depth and area of the metal part entering the magnetic field can be changed accordingly. Adjust the resistance to pedaling on the leg raiser. In addition, the step-by-step clamping rail makes the handle and the metal part produce multiple stages. It not only has a simple structure, allowing users to choose the pedaling resistance that suits them, but also avoids the use of chains, eddy current resistors or flywheels, greatly reducing the leg lift machine. manufacturing cost. More importantly, this embodiment can reduce the force of friction between the metal part and the magnetic base caused by the displacement of the metal part by external force through the elastic part. This floating mechanism can not only greatly reduce the wear of the wear-resistant pad and reduce the maintenance cost The noise generated by friction can be reduced, thereby improving the user's comfort when exercising.

Other examples according to the above-mentioned embodiment are as follows: the above-mentioned link may include a first fixed seat and a second fixed seat, wherein the first fixed seat is connected and driven by the slider and locked at one end of the elastic part, and the second fixed seat is fixed at one end of the elastic part. Lock the other end of the elastic part with the metal part. When the metal part is displaced by external force, the elastic part elastically resets the metal part, so that the frictional force between the metal part and the magnetic seat is reduced. Furthermore, the aforementioned metal portion may include an arc-shaped magnetic cut area, and the arc-shaped magnetic cut area is in contact with a magnetic field. The arc-shaped magnetic cutting area has an arc-shaped magnetic cutting area, and the arc-shaped magnetic cutting area is in equal proportion to the depth. In addition, the step-by-step clamping rail may be in the shape of a hollow stepped long hole, and the step-by-step clamping rail includes at least one sliding channel, and the sliding channel communicates with the clamping position. Each clamping position has two positioning planes, and the slider correspondingly has two slider planes, and each clamping position respectively contacts the two slider planes through the two positioning planes, so that the slider engages the slider. The two positioning planes are parallel to each other, the two slider planes are parallel to each other, and both the two positioning planes and the two slider planes are parallel to the virtual tangent line.

In addition, the aforementioned sliding element may include concave-convex parts, and the aforementioned linkage element may include a position fixing unit. Wherein the concave-convex portion has a plurality of recesses, and each recess corresponds to one of the clamping positions of the step clamping rail. The section fixing unit includes at least one spring, a roller and a fixed shell. The fixed shell limit roller fits and rolls on the concave-convex part with the force of the spring, so that the roller stably positions the slider at any clamping position. Furthermore, the aforementioned sliding element may include a concave-convex portion, and the aforementioned linking element may include a stage fixing unit. Wherein the concave-convex portion has a plurality of recesses, and each recess corresponds to one of the clamping positions of the step clamping rail. The rank fixing unit includes a solid lock seat and a concave shrapnel. The fixed lock seat fits and displaces on the concave-convex part with the elastic force of the concave elastic piece. The concave shrapnel is stably positioned in each recess, so that the slider is stably positioned at any clamping position. In addition, a wear-resistant pad is provided on the corresponding metal part of the aforementioned magnetic base, and the magnetic base also includes two magnets, and the wear-resistant pad is located on the surface of the magnets. In addition, the aforementioned leg raising machine may include a pull handle and a linkage rod, the pull handle drives the linkage rod through a lever mechanism, and the linkage rod is pushed and pulled by the pull handle to push and pull the slider. The aforementioned frame body may include a bracket, a handle, a rotating shaft and two cranks. Wherein the handrail is arranged at the front upper end of the support. The rotating shaft is arranged on the bracket and is located at the center of the arc, and the two cranks are respectively pivoted on both sides of the rotating shaft and move in opposite directions. One end of each crank is provided with a magnetic seat, and each crank swings along an arc path with the arc center as the center point. The arc path includes a first arc length and a second arc length, the first arc length extends from a virtual plumb line passing through the rotating shaft, and the arc of the first arc length ranges from 40 degrees to 100 degrees. The second arc length is connected to the first arc length, and the second arc length extends backward from the virtual plumb line. The arc of the second arc length is greater than 0 degrees and less than or equal to 10 degrees.

Through the above-mentioned embodiments, the size of the arc-shaped magnetic-cut area contacting the magnetic field will cause the change of the eddy current effect, and then lead to the change of the magnetic resistance. Furthermore, the left and right cranks coaxially pivoted on the center of the arc can perform interlocking movement in opposite directions of rotation, matching the arcs of the first arc length and the second arc length, which is very consistent with the relative swing of the human body's left and right legs. In addition, the rank fixing unit can easily and stably stay in the recess of the concave-convex part, which can make the rank setting of the linkage and the handle more stable and clear. In addition, the shape of the step-by-step clamping rail is matched with the positioning plane and the plane of the slider to enable the slider to be stably engaged at the clamping position.

Description of drawings

Figure 1A is a side view of a leg lift machine according to one embodiment of the present invention.

FIG. 1B is a schematic diagram of the action of FIG. 1A .

FIG. 2A is a partially enlarged view of area a in FIG. 1A .

FIG. 2B is a cross-sectional view along line b-b of FIG. 2A .

Fig. 3A is a side view of the handle, the sliding part and the linking part in Fig. 1 .

FIG. 3B is a schematic diagram of the action of FIG. 3A .

FIG. 4A is a schematic diagram of a section fixing unit and a sliding member according to an embodiment of the present invention.

FIG. 4B is an exploded view of the rank fixing unit in FIG. 4A .

FIG. 5A is a side view of a section fixing unit and a sliding member according to another embodiment of the present invention.

FIG. 5B is an exploded view of the rank fixing unit in FIG. 5A .

FIG. 6 is an exploded view of the link in FIG. 1 .

Detailed ways

Please refer to FIG. 1A to FIG. 4B and FIG. 6 together. Figure 1A is a side view of a leg lift machine 100 according to one embodiment of the present invention. FIG. 1B is a schematic diagram of the action of FIG. 1A . FIG. 2A is a partially enlarged view of area a in FIG. 1A . FIG. 2B is a cross-sectional view along line b-b of FIG. 2A . FIG. 3A is a side view of the handle 700 , the slider 400 and the linkage 600 of FIG. 1 . FIG. 3B is a schematic diagram of the action of FIG. 3A . FIG. 4A is a schematic diagram of the segment fixing unit 640 and the sliding member 400 according to an embodiment of the present invention. FIG. 4B is an exploded view of the rank fixing unit 640 in FIG. 4A . FIG. 6 is an exploded view of the link 600 of FIG. 1 . As shown in the figure, the leg raising machine 100 includes a frame body 200 , a sliding track 300 , a sliding part 400 , a linking track 500 , a linking part 600 , a pull handle 700 and a linking rod 800 .

The frame body 200 includes a bracket 210, a handle 220, a rotating shaft 230, an arc center 240, two cranks 250, two first connecting rods 252, two second connecting rods 254, two third connecting rods 256, and two pedals. 260 , two magnetic seats 270 and an arcuate path 280 . The bracket 210 includes a shaft center 212 , and the shaft center 212 is located below the arc center 240 . The handle 220 is located at the front upper end of the bracket 210 , and the handle 220 is fixedly connected to the bracket 210 . When the user uses the leg raising machine 100 , the hand can hold the handlebar 220 to stabilize the center of gravity of the body. The rotating shaft 230 is disposed on the bracket 210 and corresponds to the position of the arc center 240 . The two cranks 250 are coaxially pivoted at two ends of the rotating shaft 230 and are in reverse linkage with each other. The joint between the rotating shaft 230 and the bracket 210 is located between the two cranks 250 . For the user, the left foot steps on the left pedal 260 , and the left pedal 260 is connected to the left magnetic base 270 and the crank 250 . The crank 250 on the left is formed integrally with the first connecting rod 252 on the left, and rotates around the arc center 240 . The two ends of the second connecting rod 254 on the left are respectively connected to one end of the first connecting rod 252 and the third connecting rod 256 through the first moving shaft 232 and the second moving rotating shaft 234, while the other end of the third connecting rod 256 is not connected. A shaft center 212 that can be displaced. It is worth mentioning that the displacement of the first connecting rod 252 will drive the first moving shaft 232 , the second moving shaft 234 , the second connecting rod 254 and the third connecting rod 256 . Furthermore, the left pedal 260 is connected to the left magnetic base 270 , and both the pedal 260 and the magnetic base 270 are disposed at one end of the left crank 250 . The magnetic base 270 corresponds to the arc center 240 , and the magnetic base 270 is reciprocally displaced along the arc path 280 together with the crank 250 . Since the other end of the crank 250 is connected to the rotating shaft 230 at the position of the arc center 240 , the crank 250 swings back and forth along the arc path 280 with the arc center 240 as a fulcrum. In addition, the arc path 280 includes a first arc length and a second arc length, wherein the first arc length extends from a virtual vertical line passing through the rotating shaft 230, and the arc of the first arc length is 40 degrees to 100 degrees. In this embodiment The arc of the first arc length is 85 degrees, which can meet the needs of general users. The second arc length is connected to the first arc length, and the second arc length extends backward from the virtual plumb line. The arc of the second arc length is greater than 0 degrees and less than or equal to 30 degrees. The second arc length of this embodiment The arc is 5 degrees.

In the leg raising machine 100, the linkage mechanism on the right corresponds to the linkage mechanism on the left and acts in opposite directions. The third connecting rod 256 on the right side and the third connecting rod 256 on the left side are integrally formed by rigidly combining with each other. Therefore, the frame body 200 can assist the user to complete high pedaling through the linkage mechanism on the left and right sides and the user's reciprocating pedaling. exercise. In addition, the magnetic base 270 includes a plurality of N-pole magnets 272, a plurality of S-pole magnets 274, and a magnetic field (not shown). The N-pole magnet 272 corresponds to the S-pole magnet 274 , and there is a gap between the N-pole magnet 272 and the S-pole magnet 274 , and the magnetic field is located in the gap. Furthermore, a wear-resistant pad (not shown) is provided on the surface of the N-pole magnet 272 and the S-pole magnet 274 of the magnetic base 270 relative to the metal part 620, and the wear-resistant pad can provide a swinging metal part 620 and the N-pole magnet. 272 or the S-pole magnet 274 for friction buffering to reduce the noise generated by the metal part 620 swinging in the magnetic field due to collision with the surface of the magnet. It is worth mentioning that the pedaling resistance of the leg lifter 100 comes from the eddy current effect. When the metal part 620 and the magnetic field in the magnetic base 270 move relative to each other, the eddy current effect will generate a reverse force to block the relative movement. If the pedaling speed is faster, the reverse resistance is greater.

The sliding track 300 is disposed on the frame body 200 . The extending direction of the sliding track 300 intersects the virtual tangent line 310 of the arc path 280 at an acute angle, and the acute angle may be greater than or equal to 0 degrees and less than or equal to 30 degrees. The acute angle in this embodiment is equal to 0 degree, that is, the sliding track 300 is parallel to the virtual tangent line 310 .

The sliding member 400 is limited in displacement and positioned on the sliding track 300 . The sliding member 400 includes a stepped rail 410 and a concave-convex portion 440 , and the stepped rail 410 is in the shape of a hollow stepped slot. The step clamping rail 410 has four clamping positions 420 corresponding to the arc path 280 , each clamping position 420 has a different distance from the sliding track 300 , that is, each clamping position 420 has a different distance from the arc path 280 . In addition, the step clamping rail 410 includes a sliding channel 430 , and the sliding channel 430 can communicate with each clamping position 420 . Each clamping position 420 has two positioning planes 422 , the two positioning planes 422 are parallel to each other, and the two positioning planes 422 are parallel to the virtual tangent line 310 . Certainly, the shape of the stage clamping rail 410 and the distance between the adjacent clamping positions 420 can be properly adjusted according to the relative directions, positions and angles between the different sliding rails 300 and the interlocking rails 500, so as to meet the requirements of the leg lifter 100. action mechanism. Furthermore, the concave-convex portion 440 has a plurality of recesses 442 , and each recess 442 corresponds to one of the locking positions 420 of the step-level locking rail 410 .

The interlocking track 500 is disposed on the frame body 200 , and the extending direction of the interlocking track 500 is perpendicular to the virtual tangent line 310 of the arc-shaped path 280 . The extending direction of the interlocking track 500 intersects with the extending direction of the sliding track 300 to form an included angle, and the included angle may be greater than or equal to 60 degrees and less than or equal to 120 degrees. In this embodiment, the included angle is equal to 90 degrees. In other words, the extending direction of the interlocking track 500 and the extending direction of the sliding track 300 are perpendicular to each other.

The linkage member 600 is limited in displacement and positioned on the linkage track 500 . The linkage 600 includes a slider 610 , a metal part 620 , an elastic part 630 , a position fixing unit 640 , a first fixing seat 650 and a second fixing seat 660 . The metal part 620 is in contact with the magnetic field in the magnetic base 270 , and the metal part 620 is linked by the slider 610 . The slider 610 can be selectively positioned on one of the locking positions 420 . In addition, the slider 610 has two slider planes 612 corresponding to the clamping positions 420 , and each clamping position 420 respectively contacts the two slider planes 612 through the two positioning planes 422 , so that the slider 400 engages the slider 610 . The two slider planes 612 are parallel to each other, and the two slider planes 612 are parallel to the virtual tangent line 310 . It is worth mentioning that the parallel positioning plane 422 and the slider plane 612 are perpendicular to the extending direction of the interlocking rail 500 , so when the metal part 620 is affected by an external force and affects the slider 610 , it extends perpendicular to the interlocking rail 500 The component force in the direction will not cause the sliding block 610 to leave the clamping position 420 of the step clamping rail 410 , which has the effect of stable clamping. Furthermore, the slider 400 is displaced parallel to the virtual tangent line 310 to move the slider 610 , while the slider 610 is displaced perpendicular to the virtual tangent line 310 to move the elastic portion 630 , and the slider 610 corresponds to the arc center 240 . Then, the metal part 620 is connected and driven by the displaced elastic part 630 , so that the depth (not shown) of the metal part 620 entering the magnetic field changes. In addition, the metal portion 620 includes an arc-shaped magnetic section area (not shown), the arc-shaped magnetic section area is exposed to a magnetic field, the arc-shaped magnetic section area has an arc-shaped magnetic section area, and the arc-shaped magnetic section area is proportional to the depth. In other words, the greater the depth of the metal portion 620 entering the magnetic field, the greater the arc-shaped magnetic section area. In addition, the rank fixing unit 640 includes four springs 642 , rollers 644 and a fixing shell 646 . The fixed shell 646 restricts the roller 644 to fit and roll on the concave-convex portion 440 by the force of the spring 642 , so that the roller 644 can stably position the slider 610 in any clamping position 420 . Since the roller 644 easily stays in the recess 442 of the concave-convex portion 440 due to the tension of the spring 642 , the linking member 600 and the pull handle 700 can have a clearly defined effect. In addition, the first fixing seat 650 is connected and driven by the slider 610 and locked to one end of the elastic part 630 , while the second fixing seat 660 is fixed to the other end of the metal part 620 and the elastic part 630 . When the metal part 620 is displaced by an external force, the elastic part 630 can elastically reset the metal part 620 , thereby reducing the frictional force between the metal part 620 and the magnetic base 270 . The reduction of friction comes from the floating mechanism of the elastic part 630 , which not only greatly reduces the abrasion of the wear-resistant pad and reduces the maintenance cost, but also reduces the noise generated by friction, thereby improving the comfort of the user during exercise. Furthermore, the metal part 620 can be a metal sheet or spliced by a plurality of metal sheets. In this embodiment, two metal sheets are spliced, and the total length of the arc path 280 can be changed by the amount of splicing.

The pull handle 700 is connected with the linkage rod 800 , and the pull handle 700 drives the linkage rod 800 with a lever mechanism, and the linkage rod 800 is pushed and pulled by the pull handle 700 to push and pull the slider 400 . When the pull handle 700 moves downward, the linkage rod 800 pulls the slider 400 to make the slider 610 move toward the arc center 240 . The displaced slider 610 will move the metal part 620 through the first fixing seat 650, the elastic part 630 and the second fixing seat 660, so that the depth and area of the metal part 620 entering the magnetic field change, and the area of the metal part 620 entering the magnetic field is Arc magnetic section area. It can be seen that the leg lifter 100 utilizes the depth variation of the magnetic field where the metal part 620 enters the magnetic base 270 to control the arc-shaped magnetic section area of the arc-shaped magnetic section area, and changes the relative motion generated by the changed arc-shaped magnetic section area. The eddy current effect causes the pedal 260 in displacement to produce variable magnetic resistance, so the user can obtain the feeling and effect similar to the actual leg raising exercise.

Referring to FIGS. 5A and 5B together, FIG. 5A is a side view of the position fixing unit 670 and the slider 400 according to another embodiment of the present invention. FIG. 5B is an exploded view of the rank fixing unit 670 in FIG. 5A . The rank fixing unit 670 includes a locking seat 672 and a concave elastic piece 674 . The locking seat 672 fits and displaces on the concave-convex portion 440 by the elastic force of the concave elastic piece 674 , and the concave elastic piece 674 is stably positioned in each concave portion 442 , so that the slider 610 is positioned on any clamping position 420 . Therefore, the rank fixing unit 670 and the rank fixing unit 640 can also make the ranks of the linkage 600 and the handle 700 more definite.

It can be seen from the above embodiments that the present invention has the following advantages: First, the eddy current effect is generated by using the relative motion between the magnetic field and the metal part at different depths, and then the pedal in the displacement produces a variable reluctance, so as to obtain the actual lift. Similar feeling and effect of leg movement. Second, the elastic part can reduce the force of friction between the metal part and the magnetic base caused by the displacement of the metal part by external force. This floating spring mechanism can not only greatly reduce the wear of the wear-resistant pad and reduce the maintenance cost, but also reduce the generation of friction noise, thereby improving the comfort of the user during exercise. Third, the left and right cranks coaxially pivoted on the center of the arc can perform interlocking movements in opposite directions of rotation, which fully conforms to the relative swing of the left and right legs of the human body. Fourth, the step-by-step clamping rail creates multiple stages between the handle and the metal part. It not only has a simple structure, allowing users to choose the pedaling resistance that suits them, but also avoids the use of chains, eddy current resistors or flywheels, greatly reducing leg lift machine manufacturing cost. Fifth, the shape of the stage clamping rail combined with the positioning plane and the slider plane can enable the slider to be stably engaged in the clamping position, and the corresponding fit between the segment fixing unit and the recess can make the linkage and the handle The segment is more clear.

Although the present invention has been disclosed as above in terms of implementation, it is not intended to limit the present invention. Any person skilled in the art can make various choices and modifications without departing from the spirit and scope of the present invention. Therefore, the present invention The scope of protection is defined by the claims and their equivalents.

Claims (18)

1. one kind lift leg machine, it is characterised in that the lift leg machine includes：

Support body, it includes curved path, arc core and magnetic support, has magnetic field in the magnetic support, the magnetic support correspond to the arc core and Along the curved path shift reciprocately；

Sliding rail, it is on the support body；

Sliding part, it includes section rank clamp rail, and the sliding part displacement is limited and is positioned on the sliding rail, and described section of rank Clamp rail corresponds to the curved path and is provided with multiple blocking positions, and each blocking position is different from the distance of the sliding rail；

Track is interlocked, it is located at the support body and the virtualphase for extending perpendicularly to the curved path for interlocking track Tangent line, the bearing of trend of the bearing of trend for interlocking track and the sliding rail are crossed to form angle；And

Moving part, its displacement is limited and is positioned on the gearing track, and the moving part includes sliding block and metal portion, the gold Category portion contacts the magnetic field and interlocked by the sliding block, and the sliding block is selectively positioned at one of them described blocking position, The sliding part interlocks the sliding block along the sliding rail displacement, and the sliding block vertically the virtualphase tangential displacement and The corresponding arc core, cause the metal portion to enter the depth in the magnetic field and change.

2. lift leg machine as claimed in claim 1, it is characterised in that the metal portion cuts region, the arc comprising arc magnetic Magnetic cuts region and contacts the magnetic field, and the arc magnetic, which cuts region, has an arc magnetic section product, the arc magnetic section product with it is described Depth is in wait ratio.

3. lift leg machine as claimed in claim 1, it is characterised in that described section of rank clamp rail is hollow ladder elongated hole-shape, and described Section rank clamp rail includes at least one sliding channel, and the sliding channel leads to the multiple blocking position, each blocking position With two positioning planes, and the sliding block is corresponding has two sliding block planes, and each blocking position passes through described in two Positioning plane contacts two sliding block planes respectively, causes the sliding part to engage the sliding block, two positioning planes Parallel to each other, two sliding block planes are parallel to each other, and two positioning planes and two sliding block planes are parallel In the virtualphase tangent line.

4. lift leg machine as claimed in claim 1, it is characterised in that the sliding part also includes jog, and the moving part is also Comprising section fixed cell, the jog has multiple recesses, and one of them of each recess and described section of rank clamp rail The blocking position is corresponding, and the section fixed cell includes at least one spring, roller and set casing, the set casing limit The position roller is rolled on the jog with the strength fitting of the spring, causes the roller stably to position the cunning Block is in any one blocking position.

5. lift leg machine as claimed in claim 1, it is characterised in that the sliding part also includes jog, and the moving part is also Comprising section fixed cell, the jog has multiple recesses, and one of them of each recess and described section of rank clamp rail The blocking position is corresponding, and the section fixed cell includes solid lock seat and spill shell fragment, and the solid lock seat is with the spill The elastic force of shell fragment is bonded displacement on the jog, and the spill shell fragment is stably positioned at each recess, causes described Sliding block is located in any one described blocking position.

6. lift leg machine as claimed in claim 1, it is characterised in that the angle is more than 60 degree and less than 120 degree.

7. lift leg machine as claimed in claim 1, it is characterised in that the corresponding metal portion of magnetic support is provided with wear-resistant pad, The magnetic support also includes two magnets, and the wear-resistant pad is positioned at the surface of two magnets.

8. lift leg machine as claimed in claim 1, it is characterised in that the lift leg machine also includes：

Pull handle；And

Trace, the pull handle drive the trace with leverage, and the trace is by slip described in the pull handle push-and-pull Part.

9. lift leg machine as claimed in claim 1, it is characterised in that the support body also includes support, handle, rotating shaft and two songs Handle, the handle are located at the front upper end of the support, and the rotating shaft is located at the support and is located at the arc core, described in two Crank is hubbed at the rotating shaft both sides and reverse linkage respectively, and one end of each crank is provided with the magnetic support, each crank Point is swung along the curved path centered on the arc core, and the curved path includes the first arc length and the second arc length, described First arc length is extended by the imaginary plumb line of the rotating shaft, and the radian of first arc length is 40 degree to 100 degree, and described the Two arc length connect first arc length, and second arc length is oppositely extending from the imaginary plumb line, second arc length Radian is more than 0 degree and less than or equal to 10 degree.

10. one kind lift leg machine, it is characterised in that the lift leg machine includes：

Support body, it contains curved path, arc core and magnetic support, has magnetic field in the magnetic support, the magnetic support corresponds to the arc core and edge The curved path shift reciprocately；

Sliding rail, its virtualphase located at the bearing of trend of the support body and the sliding rail parallel to the curved path Tangent line；

Sliding part, it includes section rank clamp rail, and the sliding part displacement is limited and is positioned on the sliding rail, and described section of rank Clamp rail corresponds to the curved path and is provided with multiple blocking positions, and each blocking position is different from the distance of the sliding rail；

Interlock track, it be located at the support body, the bearing of trend of the bearing of trend for interlocking track and the sliding rail that This is vertical；And

Moving part, its displacement is limited and is positioned on the gearing track, and the moving part includes sliding block, metal portion and elasticity Portion, the metal portion contact the magnetic field and interlocked by the sliding block, and the sliding block is selectively positioned at described in one of them Blocking position, the parallel virtualphase tangential displacement of the sliding part and interlock the sliding block, and the vertical void of the sliding block Intend phase tangential displacement and interlock the elastic portion and the corresponding arc core, the elastic portion, which links, drives the metal portion, causes The depth that the metal portion enters the magnetic field changes.

11. lift leg machine as claimed in claim 10, it is characterised in that the moving part is also solid with second comprising the first fixed seat Reservation, first fixed seat links drive by the sliding block and solid lock is in one end of the elastic portion, second fixed seat The other end of elastic portion described in solid lock and the metal portion, when the metal portion is by external force displacement, the elastic portion springing resets The metal portion, the frictional force between the metal portion and the magnetic support is caused to reduce.

12. lift leg machine as claimed in claim 10, it is characterised in that the metal portion cuts region, the arc comprising arc magnetic Shape magnetic cuts region and contacts the magnetic field, and the arc magnetic, which cuts region, has arc magnetic section product, the arc magnetic section product and institute It is in wait ratio to state depth.

13. lift leg machine as claimed in claim 10, it is characterised in that described section of rank clamp rail is hollow ladder elongated hole-shape, and institute State section rank clamp rail and include at least one sliding channel, the sliding channel leads to the multiple blocking position, each blocking position Put with two positioning planes, and the sliding block is corresponding has two sliding block planes, each blocking position passes through two institutes State positioning plane and contact two sliding block planes respectively, cause the sliding part to engage the sliding block, two positioning are flat Face is parallel to each other, and two sliding block planes are parallel to each other, and two positioning planes and two sliding block planes are flat Row is in the virtualphase tangent line.

14. lift leg machine as claimed in claim 10, it is characterised in that the sliding part also includes jog, the moving part Section fixed cell is also included, the jog has multiple recesses, and each recess and wherein the one of described section of rank clamp rail The individual blocking position is corresponding, and the section fixed cell includes at least one spring, roller and set casing, the set casing The spacing roller is rolled on the jog with the strength fitting of the spring, causes the roller stably to position described Sliding block is in any one blocking position.

15. lift leg machine as claimed in claim 10, it is characterised in that the sliding part also includes jog, the moving part Section fixed cell is also included, the jog has multiple recesses, and each recess and wherein the one of described section of rank clamp rail The individual blocking position is corresponding, and the section fixed cell includes solid lock seat and spill shell fragment, and the solid lock seat is with described recessed The elastic force of shape shell fragment is bonded displacement on the jog, and the spill shell fragment is stably positioned at each recess, causes institute State sliding block and be located in any one described blocking position.

16. lift leg machine as claimed in claim 10, it is characterised in that the corresponding metal portion of magnetic support is provided with wear-resisting Pad, the magnetic support also include two magnets, and the wear-resistant pad is positioned at the surface of two magnets.

17. lift leg machine as claimed in claim 10, it is characterised in that the lift leg machine also includes：

Pull handle；And

Trace, the pull handle drive the trace with leverage, and the trace is by slip described in the pull handle push-and-pull Part.

18. lift leg machine as claimed in claim 10, it is characterised in that the support body is also comprising support, handle, rotating shaft and two Crank, the handle are located at the front upper end of the support, and the rotating shaft is located at the support and is located at the arc core, two institutes State crank and be hubbed at the rotating shaft both sides and reverse linkage respectively, one end of each crank is provided with the magnetic support, each song Handle point centered on the arc core is swung along the curved path, and the curved path includes the first arc length and the second arc length, institute The first arc length is stated by the imaginary plumb line of the rotating shaft to extend, and the radian of first arc length is 40 degree to 100 degree, it is described Second arc length connects first arc length, and second arc length is oppositely extending from the imaginary plumb line, second arc length Radian be more than 0 degree and be less than or equal to 10 degree.