Λ stepper

Abstract

The present invention provides a Λ stepper in which terminal pin points move as synchronous vectors due to the 180-degree phase difference pairing between 1st and 2nd λ values in the same column among left and right columns of four lambda mechanisms that are associated with a single irregular crankshaft and paired with the 180-degree phase difference on four side surfaces on a matrix, and thus an arbitrarily set footrest angle can be maintained. Also, the pushing of pedals on both sides can become relayed in a quasi-straight-line section due to the 180-degree phase difference pairing between the left and right λ values in the same row among 1st and 2nd rows, thus making it possible to perform a continuous stepping-up motion appropriate for the human body.

Description

Λ stepper

[0001] The present invention relates to a stepper, an exercise device that provides a user with the exercise effect of climbing high-angle stairs such as a step ladder.

[0002] A stepper is an exercise device that provides the user with the exercise effect of climbing stairs at a high angle. A stepper typically consists of a pair of pedals, which the user steps on alternately, a flywheel drive unit, and a linkage connecting them.

[0003] At this time, the more similar the movement trajectory of the pedals that are alternately stepped on and climbed is to the movement trajectory of the human body when actually climbing high-angle stairs such as a step ladder, the more effective the exercise becomes.

[0004] Specifically, the movement trajectory of the human body climbing a high-angled staircase is composed of a straight trajectory in which the foot steps down and pushes off, and a recovery trajectory in which the foot is lifted and recovered.

[0005] In particular, the timing of the straight trajectory of stepping and the rapid recovery trajectory of lifting the foot and recovering it must be appropriate so that the left and right pushes can be relayed alternately along the straight trajectory, and the effect of the exercise can be differentiated depending on how similarly the stepper can implement the straight trajectory that uses muscle strength.

[0006] However, existing steppers have limitations in implementing linear trajectories, instead implementing arc trajectories or modified elliptical trajectories. Arc or modified elliptical trajectories are less efficient because the force application area differs from that experienced when the human body actually climbs steep stairs. Furthermore, in some cases, they can strain the user's ankles.

[0007] Some steppers utilize linear rails to create a nearly elliptical, deformed trajectory. However, these still differ from linear trajectories, and the addition of linear rails increases the stepper's bulkiness. Furthermore, exercise machines that resemble cut-off escalators are also quite heavy and bulky.

[0008] In this respect, implementing a pedal movement trajectory similar to the movement trajectory of a human body actually climbing a high-angle staircase using only links, without the aid of rails, can be said to be a continuous development goal in the field of stepper-related technology.

[0009] The present invention is intended to solve the above-described problem, and to provide a stepper that implements a pedal movement trajectory similar to the foot movement trajectory when a human body actually climbs a high-angle staircase such as a step ladder.

[0010] In order to solve the above-described problems, the present invention, the Λ stepper, first utilizes the trajectory characteristics of the terminal coupler point of the upright lambda mechanism (see Fig. 2), which shows a trajectory quite similar to the trajectory of the human foot when the human body steps on a high staircase, a steep slope, or a stepladder, pushes down in a nearly straight trajectory, lifts the foot, recovers it in a nonlinear rapid return trajectory, and returns to the stepping position. For reference, the nearly straight trajectory section has almost the same speed, but the center is very slightly faster than the two sides, and the center is about 4 times slower than the center of the rapid return section, and the rotation angle of the circular rotation arm (for example, A1 and A2 in Fig. 2) corresponding to the nearly straight section (for example, t1 in Fig. 2) in the motion trajectory following the lambda mechanism is secured as 180°.

[0011] Secondly, the stepper must have a stable pedaling angle that can be ridden standing up, so this was solved by utilizing the simultaneous vector characteristics of the lambda mechanism.

[0012] When viewed from the side, the pivot axis is positioned at the front upper side and the pivot axis is positioned at the rear lower side on both sides of the pivot axis, and connected with a 180-degree phase difference on the pivot axis, and the lambda mechanism is driven in the same row. This has the unique advantage that the terminal pin points of the connecting rods in the same row move in a simultaneous vector, and by utilizing this, the link supported so that the pedal's directional angle is maintained between the terminal pin points can be connected.

[0013] As an example, let's compare it to the ratio of the lambda stepper presented in this drawing. Assuming that the rotation radius of the circular rotation arm / the distance between the circular rotation axis and the arc rotation axis / the rotation radius of the arc rotation arm / the inner length of the connecting rod / the length of the connecting rod are approximately 8 cm:16 cm:20 cm:20 cm:40 cm, the interval between the midpoint of the approximate straight-line section and the midpoint of the rapid return section is approximately 7.2 cm, and the coupler points can be seen to swing within a tolerance of 1 / 100 of the approximate straight-line section length and pass through the approximate straight-line trajectory. At this time, since the tolerances of the above-mentioned simultaneous vectors are tolerances that mainly cause swinging in the direction perpendicular to the approximate straight-line trajectory, the gap deviation corresponding to the change in speed of the coupler points in the direction of the approximate straight-line trajectory hardly occurs, and therefore, a sufficiently precise gap is maintained between the end coupler points to enable linking.

[0014] Thirdly, the above mentioned is about one-sided pedaling, and the key to pedaling is how the left and right pedals connect an approximately straight trajectory by stepping on and pushing off.

[0015] Also, there is one lambda mechanism on each left and right.

[0016] Each of the two lambda mechanisms paired with the above mentioned upper and lower ones on the left and right

[0017] When one end of the connecting rods on the left and right are connected to the pins of the left and right crank arms with a phase difference of 180 degrees on the left and right of the rotation axis,

[0018] When the coupler point(s) at the end of this side exits the approximate straight line trajectory, the coupler point(s) at the end of the other side enters the approximate straight line trajectory.

[0019] Referring to FIG. 5, when the left pedal (400) is pushed toward the lowest point, the right pedal (600) can be positioned at a point slightly before passing the highest point and entering the approximate straight-line section of the right pedal (600), and as soon as the left pedal is about to leave the approximate straight-line section, the right pedal enters the approximate straight-line section, thereby virtually relaying the approximate straight-line movement. This is similar to the pattern in which the human body always has at least one foot on the ground while climbing a mountain. Therefore, the present invention has fully utilized even this third advantage of virtually relay pushing of the approximate straight-line trajectory.

[0020] For reference, for example, Chebyshev's "Plantigrade" machine is inefficient and has a complex structure that is difficult to avoid because the simultaneous vectors occur between diagonal positions (due to the double 180-degree phase difference pairing), whereas the present invention's "Λ LAMBDA STEPPER" has a clean structure and is efficient because the simultaneous vectors occur in the same column (due to the quadruple 180-degree phase difference pairing).

[0021] Both use the quadruple lambda mechanism, but the phase difference connection method of the axes is completely different, so there is a big difference as shown above.

[0022] The first advantage of the lambda mechanism is relatively well known, while the third and second advantages were merely mixed in with the characteristics of Chebyshev's "Plantigrade" machine demonstrated in his 1878 Universelle, and remained largely unused for over 145 years. Prior to this application, these advantages were not well understood or widely known.

[0023] In other words, to simultaneously utilize the first, second, and third advantages, the quadruple 180-degree phase-shift pairing invented by the inventor is essential. In other words, quadruple symmetrical angle pairing is essential.

[0024] Also, since one rotary shaft must have two left-hand sides that are 180 degrees out of phase and two right-hand sides that are 180 degrees out of phase, a jagged crankshaft is essential as a component.

[0025] There are two types of jagged crankshafts, and the shaft type with a phase angle of 0° 180° 0° 180° from the far left when viewed from the rear is advantageous compared to the shaft type with a phase angle of 0° 180° 180° 0° because the center of gravity of the crankshaft is aligned with the center of the shaft. In addition, the two hinge arrangements under the pedals when viewed from above are mirror-symmetrical with the left pedal and the right pedal in the hinge arrangement (a) or the hinge arrangement (c), which is more preferable. This corresponds to Table Ⅰ and Ⅱ.

[0026] Also, referring to FIG. 1 and FIG. 7, the first connecting rod (522) of the left pedal (400) supports the front outer side of the left pedal (400), and the first auxiliary shaft (530) connected to the second connecting rod (512) supports the rear inner side of the left pedal (400).

[0027] In the right pedal (600), a fourth connecting rod (722) supports the front outer side of the right pedal (600) and a second auxiliary shaft (730) connected to the third connecting rod (712) supports the rear inner side of the right pedal (600) (for example, the two pedals of Type I in Table 1 are supported like a hinge arrangement (a) line), thereby implementing a stable structure.

[0028] By utilizing all three potential advantages of the jagged crank and the lambda mechanism, the pedal can be connected to a link that is supported at a constant angle, so that the angle of the pedal footrest is maintained constant, and in addition, the pedal can be effectively used in a device (stepper) with excellent exercise effect because it implements a trajectory similar to the movement trajectory when the human body actually climbs a step ladder, so it was applied in the most efficient form.

[0029] Additionally, it has the advantage of being able to implement a pedal trajectory that fits the human body using only links without any additional components such as straight rails, while providing a space-intensive stepper at the same time.

[0030] In addition, the stepper disclosed in one embodiment of the present invention has the advantage of excellent exercise effect because it can implement a high angle of incline of 45° or more, which is the limit of the incline angle that can be implemented in commercially available stair-type exercise equipment.

[0031] FIG. 1 is a perspective view of a stepper according to one embodiment of the present invention.

[0032] Figure 2 is a diagram illustrating the principle of implementing the lambda mechanism in a stepper.

[0033] Figure 3 is a front view of a stepper according to one embodiment of the present invention.

[0034] Figure 4 is a rear view of a stepper according to one embodiment of the present invention.

[0035] Figure 5 is a right side view of a stepper according to one embodiment of the present invention.

[0036] Figure 6 is a left side view of a stepper according to one embodiment of the present invention.

[0037] Figure 7 is a plan view of a stepper according to one embodiment of the present invention.

[0038] Figure 8 is a drawing showing the hinge arrangement direction.

[0039] The term "comprises", which may be used in various embodiments of the present invention, should be understood to indicate the presence of a feature (e.g., a function, a number, a step, an operation, a component, a part, or a combination thereof) described in the specification, but does not preclude the possibility of the presence or addition of one or more other features.

[0040] As used herein, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0041] When it is said that a component is "connected" to another component, it should be understood that the component may be directly connected to the other component, but that new components may also exist between the component and the other component.

[0042] The terms "first," "second," etc., used herein may be used to describe various components, but the components should not be limited by the terms. The terms are used solely to distinguish one component from another.

[0043] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

[0044] Referring to FIG. 1, a configuration according to one embodiment may include a support member, a left pedal (400), a right pedal (600), a first connecting member (500), a second connecting member (700), and a flywheel driving member (300).

[0045] The support may be composed of a base (100) and a support frame (200).

[0046] The base (100) may be a member that is in contact with the ground and fixes the position of the stepper.

[0047] For example, the base (100) may be provided as a plate-shaped member with one side in contact with the ground, as illustrated in Fig. 1. However, the present invention is not limited thereto.

[0048] For example, the support frame (200) may be a structure protruding on the base (100) in a shape similar to 'Λ', as illustrated in FIG. 1. However, the present invention is not limited thereto.

[0049] The left pedal (400) is a foothold that the user steps on with their left foot. It can perform a step-on and climb-up motion by moving along a trajectory determined by the first connecting member (500). It can be provided in various forms, including a square plate-shaped member. It is preferable that the right pedal (600) be provided in a form symmetrical to the left pedal (400).

[0050] The first connecting part (500) connects the support frame (200) and the left pedal (400) to support the stepping and climbing motion of the left pedal (400) and enable descending along an approximately straight trajectory. To implement this function, the first connecting part (500) may include a first-first arm (521), a first-second arm (523), and a first connecting rod (522), a second-first arm (511), a second-second arm (513), and a second connecting rod (512).

[0051] Referring to Fig. 2, Chebyshev's lambda mechanism will be described in more detail. The lambda mechanism is a connecting structure including a circular rotation arm (A1, A2) that rotates in a circle about a circular rotation axis (P1) as a rotation axis, an arc rotation arm (B1, B2) that rotates in an arc about an arc rotation axis (P2, P3) as a rotation axis, and a connecting rod (C1, C2) in which the circular rotation arm (A1, A2) is connected to one end and the arc rotation arm (B1, B2) is connected between the ends on both sides, and in which the other end of the connecting rod (C1, C2) performs a stepping and climbing movement along a trajectory that includes an approximately straight section (t1) and a nonlinear rapid return section (t2).

[0052] At this time, when using a lambda mechanism with an integer ratio, the stepping-up motion trajectory in which the other end of the connecting rod (C1, C2) moves is modified depending on the length ratio of the circular rotation arm (A1, A2), the arc rotation arm (B1, B2), and the connecting rod (C1, C2), the separation distance between the circular rotation axis (P1) and the arc rotation axis (P2, P3), and the position at which the arc rotation arm (B1, B2) is connected to the connecting rod (C1, C2). In order to implement a motion trajectory that is as close to a straight line as possible, it is desirable to satisfy the following conditions i) and ii).

[0053] i) Length of circular rotation arm (A1, A2) (=radius of rotation of circular rotation arm): Distance between circular rotation axis (P1) and arc rotation axis (P2, P3): Length of arc rotation arm (B1, B2) (=radius of rotation of arc rotation arm): Length from one end coupler point of connecting rod (C1, C2) to the middle coupler point (=inner length of connecting rod): Length of connecting rod (C1, C2) = Satisfy the ratio of 1:2:2.5:2.5:5

[0054] ii) The pivot arm (B1, B2) is connected to the 1 / 2 point of the connecting rod (C1, C2), and the pivot pin is connected to the hinge on the coupler point at one end of the connecting rod (C1, C2).

[0055] Next, referring to FIG. 2, a description will be given of how a lambda mechanism is implemented in a Λ stepper according to one embodiment of the present invention. Two crank structures each consisting of crank arms (A1, A2) and connecting rods (C1, C2) are connected to the left pedal and the right pedal, and these four crank structures share a circular rotation axis (P1) and form one crank shaft that is interconnected with each other.

[0056] At the same time, the connecting rods (C1, C2) that constitute each crank structure are connected to a total of four pivot arms (B1, B2) with two left pedals (400) and two right pedals (600), respectively, to satisfy four lambda mechanisms.

[0057] That is, four crank arms (A1, A2) and four connecting rods (C1, C2) form one crankshaft, and four pivot arms (B1, B2) are connected to this to apply a quadruple lambda mechanism. In this specification, a crankshaft with this structure is referred to as a 'jagged crankshaft' to distinguish it from a crankshaft with a general structure.

[0058] In particular, the two lambda mechanisms implemented on the left pedal (400) or the right pedal (600) are positioned opposite to each other with the circular rotation axis (P1) shared by each of the respective arc rotation axes (P2, P3) in the middle when viewed from the side, but have a phase difference of 180° in their circular rotations, so that their respective stepping and climbing movements form a synchronistic vector.

[0059] Referring again to FIGS. 1 to 7, the stepper has four connecting rods (512, 522, 712, 722), so when looking from the back, the leftmost one is the first connecting rod (522), and then the second connecting rod (512), the third connecting rod (712), and the fourth connecting rod (722) are examined in that order.

[0060] For example, referring to FIG. 1, the 1-1 arm (521) rotates with the first axis (R1) as the rotation axis between the two ends, and one end of the 1-1 arm (521) is connected to the other end of the 2-1 arm (511) via the second connecting rod (512) and the 2-1 pin (514), and the other end of the 1-1 arm (521) rotates at an opposite phase angle to the other end of the 2-1 arm (511).

[0061] Accordingly, the first connecting rod (512) connected to the other end of the 2-1 arm (511) and the second connecting rod (522) connected to the other end of the 1-1 arm (521) rotate with a phase difference of 180° with respect to the first axis (R1).

[0062] The first and second arms (523) are connected to a third axis (R3) perpendicular to a support (or a support frame (200) included in the support) at one end thereof, and the other end thereof can rotate in an arc around the third axis (R3) as a rotational axis.

[0063] At this time, the third axis (R3) is positioned above the first axis (R1) in the support (or may be a support frame (200) included in the support), so that the lambda mechanism formed by the first-first arm (521), the first-second arm (523), and the first connecting rod (522) may have a form in which the circular rotation axis (e.g., P1 in FIG. 2) is positioned lower than the arc rotation axis (e.g., P3 in FIG. 2).

[0064] Preferably, the third axis (R3) may be positioned above the front of the first axis (R1) (for example, in the -y-axis direction in FIG. 1). At this time, the distance between the first axis (R1) and the third axis (R3) may be twice the length of the radius of rotation of the first-first arm (521). At this time, the first-second arm (523) may have a shape in which the neck portion is bent outward away from the first axis (R1).

[0065] Specifically, the first-second arm (523) may have a shape in which a point between both ends is bent and protrudes, and when the first-second arm (523) connects the support (or the support frame (200) included in the support) and the first connecting rod (522), the protruding portion may be arranged to face away from the first axis (R1).

[0066] This form of the 1st-2nd arm (523) is a design application adopted when implementing the lambda mechanism in an actual product, similar to the 2nd-2nd arm (513) described above.

[0067] Specifically, when the width of all moving component links of the first connecting portion (500) driven by the lambda mechanism as viewed from the side exceeds 1 / 20 of the length of the first connecting rod (522) or the second connecting rod (512), a collision may occur during operation structurally with a part of the other rotating arm that is symmetrical to the connecting pin that rotates in the opposite phase angle while rotating, and structural avoidance is required to prevent this.

[0068] For example, in FIG. 1, if the widths of the 2nd-1 arm (511), the 2nd-2 arm (513), the 2nd connecting rod (512), the 1st-1 arm (521), the 1st-2 arm (523), and the 1st connecting rod (522) driven by the lambda mechanism each exceed 1 / 20 of the length of the 2nd connecting rod (512) or the 1st connecting rod (522), the circular rotation of the 2nd-1 pin (514) and the arc rotation of the 1st-2 arm (523) may collide with each other, and the circular rotation of the 1st-1 pin (524) and the arc rotation of the 2nd-2 arm (513) may collide with each other. The first connecting rod (522) may have a first-first arm (521) connected to one end, a left pedal (400) connected to the other end, and a first-second arm (523) connected to a point halfway between the two ends.

[0069] At this time, the first connecting rod (522) is connected to the 1-1 arm (521) to form a kind of crank shaft, and the circular rotational motion of the 1-1 arm (521) and the stepping-up motion of the left pedal (400) connected to the other end of the first connecting rod (522) can be switched with each other.

[0070] According to the structure described above, the first-first arm (521), the first-second arm (523) and the first connecting rod (522) satisfy the lambda mechanism, and the other end of the first connecting rod (522) can move along a trajectory including an approximately straight section and a nonlinear rapid return section.

[0071] Next, the 2-1 arm (511) may be a type of crank arm in which one end is connected to a first axis (R1) perpendicular to a support (or a support frame (200) included in the support), and the other end rotates in a circle around the first axis (R1) as a rotational axis.

[0072] The second-second arm (513) has one end connected to a second axis (R2) perpendicular to the support (or may be a support frame (200) included in the support), and the other end can rotate in an arc around the second axis (R2) as the rotation axis.

[0073] Here, the lambda mechanism formed by the 2nd-1 arm (511), the 2nd-2 arm (513) and the 2nd connecting rod (512) is in a form in which the circular rotation axis (e.g., P1 in FIG. 2) is positioned above the arc rotation axis (e.g., P2 in FIG. 2), and the lambda mechanism formed by the 1st-1 arm (521), the 1st-2 arm (523) and the 1st connecting rod (522) is in a form in which the circular rotation axis (e.g., P1 in FIG. 2) is positioned below the arc rotation axis (e.g., P3 in FIG. 2), which are opposite to each other. However, as described above, since the 2nd connecting rod (512) and the 1st connecting rod (522) have a phase difference of 180° in the circular rotation, the stepping-up motion trajectory of the 2nd connecting rod (512) and the stepping-up motion trajectory of the 1st connecting rod (522) are They show the simultaneity vectors of each other.

[0074] At this time, the distance between the first axis (R1) and the second axis (R2) may be twice the length of the second-1 arm (511). At this time, for example, referring to FIG. 5, the first axis (R1), the second axis (R2), and the third axis (R3) may be positioned so as to be perpendicular to a straight line (H) parallel to the support frame (200), and may all intersect with the straight line (H).

[0075] Accordingly, the motion trajectory formed by the other end of the second connecting rod (512) and the motion trajectory formed by the other end of the first connecting rod (522) can move in parallel.

[0076] Here, the inclination angle (θ) formed by a straight line intersecting the first axis (R1), the second axis (R2), and the third axis (R3) with respect to the ground may be 50° to 90°. Preferably, it may be 60°.

[0077] Specifically, when considering the direction of the force that the user applies to the pedal for pedaling according to the inclination angle (θ), if the inclination angle (θ) is less than 50°, the transition between the approximately straight section (for example, it may be t1 in FIG. 2) and the nonlinear rapid return section (for example, it may be t2 in FIG. 2) in the motion trajectory formed by the second-first arm (511), the second-second arm (513), and the second connecting rod (512) satisfying the lambda mechanism may not be smooth.

[0078] In particular, when the incline angle is 60°, the left pedal (400) connected to the first connecting part (500) can come down closest to the ground, and the user can step on the pedal (400) without a separate stepping member.

[0079] On the other hand, if the slope angle exceeds 90°, it is difficult to see it as commercially valid.

[0080] Meanwhile, in one embodiment of the present invention, as described above, when the base (100) and the support frame (200) are connected by a hinge so that the angle of the support frame (200) with respect to the ground can be changed, the angle formed by a straight line intersecting all of the first axis (R1) to the third axis (R3) with respect to the ground can also be changed according to the change in the angle of the support frame (200).

[0081] At this time, the 2nd-2nd arm (513) may have a shape in which the neck portion is bent outward away from the first axis (R1), similar to the 1st-2nd arm (523). Duplicate explanations will be omitted.

[0082] At this time, the other end of the second connecting rod (512) and the left pedal (400) can be indirectly connected through the first auxiliary shaft (530). The left pedal (400) is directly or indirectly connected to and supported by the second connecting rod (512) and the first connecting rod (522) to be described later, and the purpose is to compensate for the height difference between the motion trajectory formed by the other end of the second connecting rod (512) and the motion trajectory formed by the other end of the second connecting rod (522) so that the left pedal (400) can be horizontal to the ground or at a certain angle.

[0083] At this time, the connection between the second connecting rod (512) and the first auxiliary shaft (530) can be rotatably connected to the second-third pin (516).

[0084] According to the structure described above, the second-first arm (511), the second-second arm (513), and the second connecting rod (512) satisfy the lambda mechanism, and the other end of the second connecting rod (512) can perform a stepping-up movement along a trajectory including an approximately straight section (e.g., t1 in FIG. 2) and a nonlinear rapid return section (e.g., t2 in FIG. 2).

[0085] Next, the second connecting part (700) connects the right pedal (600) to the support frame (200) like the first connecting part (500) to support the stepping and climbing movement of the right pedal (600) and allows the right pedal (600) to push along an approximately straight trajectory.

[0086] As a configuration for implementing this function, the second connecting part (700) may include a third-1 arm (711), a third-2 arm (713), a third connecting rod (712), a fourth-1 arm (721), a fourth-2 arm (723), and a fourth connecting rod (722).

[0087] At this time, the 3-1 arm (711), the 3-2 arm (713) and the 3rd connecting rod (712) are connected to each other to satisfy the Lambda Mechanism, and the 4-1 arm (721), the 4-2 arm (723) and the 4th connecting rod (722) are also connected to each other to satisfy the Lambda Mechanism.

[0088] By providing a 180° phase difference between the circular rotations of the second connecting rod (512) and the third connecting rod (712), relay pushing is possible in which the left pedal (400) connected to the first connecting portion (500) and the right pedal (600) connected to the second connecting portion (700) are alternately connected.

[0089] The 3rd-2nd arm (713) has one end connected to a second axis (R2) perpendicular to the support (or may be a support frame (200) included in the support), and the other end can rotate in an arc around the second axis (R2) as the rotation axis.

[0090] At this time, the 3rd-2nd arm (713) may have a shape in which the neck portion is bent outward away from the first axis (R1), similar to the 1st-2nd arm (523). Duplicate explanations will be omitted.

[0091] The third connecting rod (712) may have a third-first arm (711) connected to one end thereof, a right pedal (600) connected to the other end thereof, and a third-second arm (713) connected to a point halfway between the two ends thereof. At this time, the connection between one end of the third connecting rod (712) and the third-first arm (711) is rotatably connected by a third-first pin (714), and the third connecting rod (712) forms a crank structure with the third-first arm (711). At this time, the other end of the third connecting rod (712) and the right pedal (600) may be indirectly connected via the second auxiliary shaft (730). This is similar to the indirect connection between the other end of the second connecting rod (512) and the left pedal (400) via the first auxiliary shaft (530), and a duplicate description will be omitted.

[0092] Here, the third connecting rod (712) and the fourth connecting rod (722) have a phase difference of 180° in a circular rotation, similar to the relationship between the first connecting rod (522) and the second connecting rod (512), so that the motion trajectory formed by the other end of the third connecting rod (712) and the motion trajectory formed by the other end of the fourth connecting rod (722) can move in parallel.

[0093] At this time, the 4th-2nd arm (723) may have a shape in which the neck portion is bent outward away from the first axis (R1), similar to the 1st-2nd arm (523).

[0094] Overall, (when using the lambda mechanism with integer ratios)

[0095] The minimum connecting structure unit that satisfies the conditions of i) and ii) when combined with the first connecting rod (522) is called 1 Set, and the minimum connecting structure units that satisfies the conditions of i) and ii) when combined with the second connecting rod (512) / third connecting rod (712) / fourth connecting rod (722) are called 2 Set, 3 Set, and 4 Set, respectively.

[0096] If the axis type is a 0°, 180°, 0°, 180° axis, such as the example of degrees

[0097] The shapes of Set 1 and Set 4 have the following relationship. The shape of Set 4 is essentially the same as the shape of Set 1, which is obtained by rotating the original axis of rotation 180 degrees and then mirroring it around the center of the stepper. Similarly, the shape of Set 3 is essentially the same as the shape of Set 2, which is obtained by rotating the original axis of rotation 180 degrees and then mirroring it.

[0098] The case of the 0°, 180°, 180°, 0° axes is developed differently.

[0099] At this time, the shape of the 3rd set is similar to the shape of the 1st set after rotating the original axis by 180 degrees and then copying it. Similarly, the shape of the 4th set is similar to the shape of the 2nd set after rotating the original axis by 180 degrees and then copying it.

[0100] Referring to Figure 4, when viewed from behind,

[0101] On the left, the 1-2 upper pivot arm (523) / 1-1 (between the 1-1 pin (524) and the 2-1 pin (514)) pivot crank arm (521) / 2-2 lower pivot arm (513) are placed in a straight line.

[0102] On the right side, the 4-2 upper pivot arm (723) / 4-1 (between the 3-1 pin (714) and the 4-1 pin (724)) pivot crank arm (721) / 3-2 lower pivot arm (713) are positioned in a straight line.

[0103] This is an example of a simple and economical structure among many possible implementations. Therefore, naturally, when viewed from the back,

[0104] This stepper can be designed and manufactured even with a structure where the pivot arm is not aligned with the crank arm at all.

[0105] To elaborate on the possibility of more diverse structural transformations:

[0106] The circular rotation axis type can be implemented in a form where the contact portion of the rotation axis that meets the rotation support of the stepper is located between the 2-1 pin (514) and the 3-1 pin (714), that is, near the middle of the rotation axis, but can also be implemented in a form where it is located near both ends of the rotation axis further out than the 1-1 pin (524) and the 4-1 pin (724).

[0107] There are also various ways to increase the rotational speed of the wheel or the inertia effect. For example, in the case of an indoor bicycle, the flywheel and crankshaft are separated and connected by a belt or chain (or barbell gear).

[0108] As it falls within the category of Λ stepper, you can change the components according to your preference.

[0109] Next, referring to FIG. 1, a planetary gear drive unit for high-speed rotation may be built into the flywheel drive unit (300).

[0110] The continuous stepping and climbing motion of the left pedal (400) and the right pedal (600) is converted into a circular rotation through the first connecting part (500) and the second connecting part (700), respectively. At this time, the flywheel driving part (300) including the planetary gear driving part continuously applies a load to the rotation of the wheel to provide resistance and at the same time increase the inertial effect of the rotation of the wheel.

[0111] The drag force can enhance the effectiveness of the exercise, and the inertia of the fast wheel allows the pedal to smoothly transition from a near-linear section (e.g., t1 in FIG. 2) to a non-linear rapid recovery section (e.g., t2 in FIG. 2), resulting in smooth pedaling.

[0112] The above structure is an example of a lambda mechanism with an integer ratio, and its assembly structure corresponds to Type I of Table 1. As described above, Types I and II are preferable because the center of gravity of the axis is at the center of the axis and the hinge arrangement direction of the footrest is also mirror-symmetrical.

[0113] Next, the lambda stepper can be combined in four cases per ratio, and based on this, the number of cases of the jagged crankshaft is organized as shown in Table 1 below.

[0114] TYPE0°180°0°180°Relative positions of footrest hinges (hinge arrangement)0°180°180°0°TYPEILeft1λLeft2λRight2λRight1λHinge arrangement(a)Hinge arrangement(b)Left1λLeft2λRight1λRight2λIIIIILeft2λLeft1λRight1λRight2λHinge arrangement(c)Hinge arrangement(d)Left2λLeft1λRight2λRight1λIV

[0115] Hinge arrangement (a) to hinge arrangement (d) refer to Fig. 8.

[0116] The shapes of Drawing 1 and Drawings 3 to 7 are 0°, 180°, 0°, 180° crankshaft types, and are included in Type I, one of the four types above, and are also an example of various examples that can be implemented as Type I. The 0°, 180°, 0°, 180° crankshaft types of Type I in Table 1, Left 1λ, Left 2λ, Right 2λ, Right 1λ are

[0117] Left 1λ: 2-section link in which the 1st-2nd arm (523) is connected to the 1st connecting rod (522)

[0118] Left 2λ: 2-section link in which the 2nd-2nd arm (513) is connected to the 2nd connecting rod (512)

[0119] Right 2λ: 2-section link connecting the 3rd-2 arm (713) to the 3rd connecting rod (712)

[0120] Right 1λ: The 4th-2 arm (723) corresponds to a 2-section link connected to the 4th connecting rod (722). In addition, the "four connecting parts of the crankshaft that move around the circumference" in claim 1, when applied to the drawing, means four circularly rotating pins of the crankshaft (as seen from the back), for example, in order, the 1st-1 pin (524) / the 2nd-1 pin (514) / the 3rd-1 pin (714) / the 4th-1 pin (724). In addition, in claim 1,

[0121] "The simultaneity vector between the terminal coupler points of the same column λ"

[0122] This means that the terminal coupler points simultaneously draw a trajectory like 't2' in Fig. 2,

[0123] "Relay of approximate straight vectors between terminal coupler points of the same row λ"

[0124] The pinpoint of the second-3 pin (516) at the other end of the second connecting rod (512) and the pinpoint of the third-3 pin (716) at the other end of the third connecting rod (712) can correspond to the parts that can perform such a function.

[0125] For reference, the claims of this application require a comprehensive discussion of common features that encompass not only Type I, which encompasses the forms presented in Drawings 1 and 3-7, but also all four types, such as Types I / II / III / IV, and all types of manufacturable lambda steppers. Therefore, it is not desirable to attempt to record the part numbers of Drawings 1 and 3-7 one-to-one in the claims described below. The above-mentioned inclusive relationship is explained to aid understanding.

[0126] The foregoing description of the present invention is for illustrative purposes only, and those skilled in the art will readily appreciate that the present invention can be readily modified into other specific forms without altering the technical spirit or essential characteristics of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not intended to be limiting. Accordingly, the true technical protection scope of the present invention is indicated by the technical spirit of the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be interpreted as being included within the scope of the present invention.

[0127] [Explanation of symbols]

[0128] 100: Base 200: Support Frame

[0129] 300: Flywheel drive (including planetary gear drive) 400: Left pedal

[0130] 500: 1st connector 511: 2nd-1 arm

[0131] 512: Second connecting rod 513: Second-second arm

[0132] 514: 2nd-1st pin 515: 2nd-2nd pin

[0133] 516: 2nd-3rd pin 521: 1st-1st female

[0134] 522: 1st connecting rod 523: 1st-2nd arm

[0135] 524: Pin 1-1 525: Pin 1-2

[0136] 530: First auxiliary shaft 600: Right pedal

[0137] 700: 2nd connection 711: 3-1 arm

[0138] 712: Third connecting rod 713: Third-second arm

[0139] 714: Pin 3-1 715: Pin 3-2

[0140] 716: 3rd-3 pin 721: 4th-1 female

[0141] 722: 4th connecting rod 723: 4th-2nd arm

[0142] 724: 4th-1st pin 725: 4th-2nd pin

[0143] 730: Second auxiliary axis R1: First axis

[0144] R2: Second axis R3: Third axis

Claims

1. Quadruple symmetry angle pairing - An invention developed by deriving a Lambda Mechanism and developing a useful stepper in which a stepping angle is maintained and an approximate linear motion is relayed in a state of simultaneous vectors, and for the sake of simplicity, a two-section link having an angular rotation arm connected to a connecting rod is abbreviated as "λ", and when viewed from above from the rear, the relative positions of the angular rotation axes are left column 1, left column 2, right column 1, and right column 2, so they are abbreviated as "left 1, left 2, right 1, right 2", and the λs based on the above four angular rotation axes are abbreviated as "left 1λ, left 2λ, right 1λ, right 2λ", respectively, and the phase angle of the pin or connecting part that moves circumferentially on the far left of the crankshaft when viewed from the rear is considered to be 0°, and in theory, the distance from a coupler point of a link when viewed from the side to the next coupler point is considered as the length, and from one end coupler point of a long connecting rod to both sides The distance to any coupler point between the ends is abbreviated as “inner length of the connecting rod”, and the radius of rotation of the circular arm is considered to be 1 X. The present invention is composed of There is a single jagged crankshaft that can simultaneously rotate two pins that are symmetrical to each other and are located on the left side and two pins that are symmetrical to each other based on the center of the rotation axis as seen from the rear, (however, among the four pins that rotate around the circumference, the two pin-like connecting parts located on the outside of the left and right sides can be configured as hinges instead of pins in some cases) When viewed from above, there are four rotation axes: left 1, left 2, right 1, and right 2. When looking at the links of the jagged crankshaft from the side, On a circle with a radius of 2 X from the axis of rotation (The above, the first row of rotation axes) A ​​pair of rotation axes at the top, and located 180 degrees opposite, (above, there is a pair of lower rotation axes, which are the two-row rotation axes) When viewed from the side, The upper twin-rotating shaft, the middle jagged crank shaft, and the lower twin-rotating shaft are aligned in a straight line on the support frame erected on the base. Based on the above straight line, four rotating arms, each with a rotation radius of 2.5 X, located on the side visible from behind, are connected to a coupler point with an inner length of 2.5 X of four connecting rods, each with a length of 5 X, thereby forming four λ-shaped two-section links. When one end of the connecting rod of the above four λ links is connected to the four rotating pins of the jagged crankshaft through a hinge, The relative ratio of the radius of rotation of the circular arm of the jagged crankshaft / the distance between the circular axis and the circular axis / the radius of rotation of the circular arm / the inner length of the connecting rod / the total length of the connecting rod is composed of the integer ratio of 1:2:2.5:2.5:5, so that each individual lambda mechanism is possible, but the simultaneous vector that supports the footrest angle and the relay of the approximate rectilinear motion of the left and right footrests are only possible through the four-fold symmetrical angle pairing. To summarize the interlocking structure, when viewed from the side, The coupler points of the other end of each of the connecting rods connected to the left and right pivot arms at the top are the same as the axis points and positions of each hinge that supports the weight of the front side in the left and right pedals. In addition, in order for the two hinges that support the weight of the front and rear sides in the left and right pedals to move in a simultaneous vector, the two pivot pins connected to the left 1λ and the left 2λ must be at symmetrical angles with each other, and the two pivot pins connected to the right 1λ and the right 2λ must also be at symmetrical angles with each other, so that the pivot axis is one 'jagged crankshaft'. 0°, 180°, 0°, 180° crankshaft OR 0°, 180°, 180°, 0° crankshaft. If the crankshaft is 0°, 180°, 0°, 180° jagged, then at the four connecting parts that move around the circumference, Left 1λ, Left 2λ, Right 2λ, Right 1λ OR Left 2λ, Left 1λ, Right 1λ, Right 2λ are matched. If it is a 0°, 180°, 180°, 0° jagged crankshaft, then at the four connecting parts that move around the circumference, Left 1λ, Left 2λ, Right 1λ, Right 2λ OR Left 2λ, Left 1λ, Right 2λ, Right 1λ are matched. Each combination of the above four connection methods is paired with a 180° phase difference in four directions. To summarize the characteristics of the lambda mechanism by four-fold symmetry angle pairing, A relative ratio, based on four pivot points, with a quadruple lambda mechanism. When four λs are matched to four cylindrical connections of one jagged crankshaft, Two couplings of the same column, left 1λ and left 2λ, moving in a circular motion are 180° out of phase with each other. Two couplings of the same type, right 1λ and right 2λ, moving in a circular motion are 180° out of phase with each other. Two couplings of the same person, left 1λ and right 1λ, moving in a circle are 180° out of phase with each other. Two couplings of the same person, left 2λ and right 2λ, moving in a circle are 180° out of phase with each other. Quadruple 180 degrees phase difference pairing By becoming, Between the terminal coupler points of the same column λ, the synchronistic vector By generating a relay of an approximate straight line vector between the terminal coupler points of the same row λ, It is a state of simultaneous vector between the same columns, and becomes a relay of relative columns and approximate linear motion. As the effect unfolds, ① Due to the 1,2 λ of the same column on the left and right columns being paired with a 180° phase difference Since the coupler points of the other ends of the long connecting rods of λ in the first and second rows of the same column, located in the right or left column, move simultaneously with the simultaneous vector, a feature occurs in which the two coupler points are always maintained at a precise interval sufficient to enable link connection between each other. Between the coupler points of the other end of the long connecting rod of λ in the first and second rows of the upper row, a link capable of supporting the pedal at a certain angle is connected. Also, between the coupler points of the other end of the long connecting rod of λ in the first and second rows of the left column, a link capable of supporting the pedal at a certain angle is connected. The left and right pedals of the stepper are configured. ② Due to the pairing of the left and right λs of the same row in rows 1 and 2 with a phase difference of 180° Before one pedal in near-linear motion leaves the near-linear section The other pedal, which is in a nonlinear rapid recovery, enters the approximately straight line section, The characteristic of the approximate rectilinear motion being a continued relay has been created. When pedaling with a motion that step on and climb up, Since the pushing of the left and right foot pedals becomes a continuous relay, As mentioned above, while maintaining the angle of the footrest set arbitrarily, It can perform continuous stepping and climbing movements, and through the lambda mechanism, The Λ stepper interacts with the rotation of the wheel and allows for physical exercise.

2. In paragraph 1, There is a single jagged crankshaft that can simultaneously rotate two pins that are symmetrical to each other and are located on the left side and two pins that are symmetrical to each other based on the center of the rotation axis as seen from the rear, (however, among the four pins that rotate around the circumference, the two pin-like connecting parts located on the outside of the left and right sides can be configured as hinges instead of pins in some cases) When viewed from above, there are four rotation axes: left 1, left 2, right 1, and right 2. The four pivot arms, located on the side visible from the rear, It consists of four λ-shaped two-section links, connected to a coupler point between the two ends of the four connecting rods. When one end of the connecting rod of the above four λ links is connected to the four rotating pins of the jagged crankshaft through a hinge Integrated only with a quadruple symmetrical angle pairing, In one case of relative ratios, where the lambda mechanism is possible, The four-fold symmetry angle pairing lambda mechanism operates only for each combination of the four connection methods, and the stepper is implemented in the same manner as in the first clause above. As the effect unfolds, ① The left and right pedals of the stepper are configured so that the coupler points at the other end of the long connecting rods move in a simultaneous vector due to the 180° phase difference pairing between the 1 and 2 λs of the same row in the left and right columns, and the angle of the footrest is maintained at an arbitrary setting. ② Due to the pairing of the left and right λs of the same row in rows 1 and 2 with a 180° phase difference Before one pedal in near-linear motion leaves the near-linear section The other pedal, which is in a nonlinear rapid recovery, enters the approximately straight line section, The characteristic of the approximate rectilinear motion being a continuous relay has arisen, When pedaling with a stepping motion Since the pushing of the left and right foot pedals becomes a continuous relay, As mentioned above, while maintaining the angle of the footrest set arbitrarily, It can perform continuous stepping and climbing movements, and through the lambda mechanism, It is also the same as the first paragraph above in that it has the effect of enabling physical exercise by interacting with the rotation of the wheel. Implementing the lambda mechanism of the stepper in the above first paragraph, Unlike the ratio of the radius of rotation of the circular rotation arm of the jagged crankshaft / the distance between the circular rotation axis and the circular rotation axis / the radius of rotation of the circular rotation arm / the inner length of the connecting rod / the total length of the connecting rod, which was composed of an integer ratio of 1:2:2.5:2.5:5, The lambda mechanism of the stepper is implemented in a relative ratio of 1: A: B: C: D (where ABCD is part or all non-integers), and is characterized by being composed of relative ratios that include non-integer ratios. Due to the relative ratio configuration, which includes non-integer ratios of the above Λ stepper, When viewed from the side, The upper twin axes of rotation and the lower twin axes of rotation are located at the same radius with respect to the circular axis of rotation, but are not located 180° opposite to each other. When viewed from above, The axis position of the jagged crankshaft is on an imaginary plane that intersects at a right angle in the middle of an imaginary connecting plane connecting the upper twin rotation axes and the lower twin rotation axes, and the axis is assumed to be an axis that is parallel to the intersection line where the two imaginary planes meet at a right angle. In some cases, it is located at a position of a line that is concave down compared to the above virtual connection plane, or at a position of a line that is convex up compared to the above virtual connection plane. When viewed from the side, the imaginary line connecting the three axes on the support frame is mirror-symmetrical and is characterized by forming a straight line or a bent line, which is a Λ stepper.

3. In paragraph 1 or 2, The above support member comprises a base installed on the ground; and a hinge connected to the base. It includes a support frame that can be connected and change the angle it forms with the ground, When viewed from the side, The support frame is formed with the upper twin rotation axes and the lower twin rotation axes placed at the same radius around the rotation axis, By changing the erected angle of the above support frame A Λ stepper characterized by being able to change the angle it forms with the ground.

4. In paragraph 1 or 2, The right pedal is connected by a hinge to the right-side connecting portion linked between the hinges of the other end of the long connecting rods of the λ links in the first and second rows of the right-side, The left pedal is connected by a hinge to the left row connecting part which is linked between the hinges of the other end of the long connecting rod of the λ links in the first and second rows of the left row, According to the needs of the athlete, or in response to changes in the angle of the support frame A Λ stepper characterized in that the connection angle between the right pedal and the right-row connecting portion or the connection angle between the left pedal and the left-row connecting portion can be adjusted.

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