KR100889925B1 - Motion converting device and bicycle or training machine having the same - Google Patents

Abstract

A motion converting device and bicycle or training tool equipped with the same are provided, which enable a user to perform waist and leg exercise more efficiently by using his/her weight and a pedal. A motion converting device comprises: a top link(10) in which a saddle is formed on the top of the first top link or the second top link; a bottom link(30) which is positioned in the lower part of the top link and in which a pedal is equipped in front and back surface of the first bottom link or the second bottom link; a handle(50) formed in the upper end of the vertical member equipped adjacent to the other end of the bottom link and top link; a transform unit(70) converting the linear motion into the rotational motion; and a rotation axis(90).

Description

MOTOR CONVERTING DEVICE AND BICYCLE OR TRAINING MACHINE HAVING THE SAME}

According to an embodiment of the present invention, a first upper link of which the other end is rotated in the vertical direction and one end of which is rotated in the vertical direction along the other end of the first upper link based on the other end of the first upper link An upper link formed of a second upper link axially coupled to the other end of the link and having a saddle formed on an upper portion of any one of the first and second upper links; Located in the lower portion of the upper link, the first lower link that the other end is rotated in the vertical direction in the state that one end is axially coupled with the one end of the first upper link, and the other end is axially coupled with the other end of the second upper link And one end of the second lower link axially coupled to the other end of the first lower link to rotate in the vertical direction along the other end of the first lower link, and the front and rear surfaces of any one of the first and second lower links. A lower link provided with a pedal; A handle formed at an upper end of the vertical member provided at a distance adjacent to the other end of the upper link and the lower link; A conversion unit for converting an angular motion or a linear motion according to the folding of the upper link and the lower link into a rotational motion; A one-way bearing that is rotated due to the rotational movement of the conversion unit in engagement with the conversion unit, and a rotational shaft that rotates through the one-way bearing; And it relates to a bicycle or training apparatus having the same.

In general, the recent well-being craze for leisurely and enjoyable life has been blowing, and interest in exercise has been amplified to lead a healthy life.

In other words, the body is to be healthy to enjoy a rich life.

On the other hand, in the recent health clubs, people who lack time or want to exercise professionally and systematically are strengthening their fitness by using various exercise tools. Among them, the bicycle exercise equipment that can be easily used even in small spaces is widely used. It is a favorite situation.

However, such a bicycle exercise equipment is to stand up or fixed to the floor surface to achieve a predetermined exercise effect only by turning the pedal using only the legs, so it is more efficient to perform the waist and leg exercise, etc. There is an unexpected problem.

The present invention was created to solve the above problems, the user sitting on the saddle formed in the upper portion of the upper link folded the upper link and the lower link by using the pedals provided on both sides of the weight and the lower link. It is an object of the present invention to provide an exercise conversion device and a bicycle or training apparatus having the same, which enables the user to perform the waist and leg exercises more easily and more efficiently.

The present invention for achieving the above object is a first upper link to rotate the other end in the vertical direction based on one end, and one end is rotated in the vertical direction along the other end of the first upper link based on the other end An upper link having a second upper link axially coupled to the other end of the first upper link so that a saddle is formed on one of the first and second upper links; Located in the lower portion of the upper link, the first lower link that the other end is rotated in the vertical direction in the state that one end is axially coupled with the one end of the first upper link, and the other end is axially coupled with the other end of the second upper link And one end of the second lower link axially coupled to the other end of the first lower link to rotate in the vertical direction along the other end of the first lower link, and the front and rear surfaces of any one of the first and second lower links. A lower link provided with a pedal; A handle formed at an upper end of the vertical member provided at a distance adjacent to the other end of the upper link and the lower link; A conversion unit for converting an angular motion or a linear motion according to the fold of the upper link and the lower link into a rotational motion; A one-way bearing that is rotated due to the rotational movement of the conversion unit in engagement with the conversion unit, and a rotational shaft that rotates through the one-way bearing; To provide.

Here, the conversion unit and the lower end is a movement bar that the upper end rotates left and right in the state coupled to the front or rear of the first lower link; A center portion is axially coupled to the front or rear surface of the first upper link, and one end is engaged with the one-way bearing axially coupled to one or the other end of the rotary shaft, and the connecting bar is axially coupled to the upper end of the movable bar at the other end. The rotating plate is configured, wherein the rotating plate of the conversion unit is angular movement in the vertical direction in accordance with the folding of the upper link and the lower link when the rotary shaft is folded or unfolded through the one-way bearing It is desirable to allow it to rotate in the forward direction.

The conversion unit may be configured such that the other end of the second upper link and the other end of the second lower link are axially coupled to the upper and lower surfaces, respectively, and positioned at a distance adjacent to one end of the first upper link and one end of the first lower link. A fixed bar having a rotating shaft coupled to the other end; A movable bracket coupled to the other end of the fixed bar in a slidable direction and positioned at one end or the other end of the rotary shaft and having one end of the first upper link and one end of the first lower link axially coupled to the upper and lower surfaces thereof; The movable bracket is provided when the upper link and the lower link are folded in an engaged state with an upper end or a lower end of the one-way bearing axially coupled to one end or the other end of the rotating shaft and provided at an inner upper side or an inner lower side of the movable bracket. And a conversion member made of a rack portion which allows the rotary shaft to rotate in a forward direction through the one-way bearing when the upper and lower links are folded or unfolded by sliding along the linear movement. desirable.

Further, it is preferable that the rack portion of the conversion member is selectively engaged with the one-way bearing axially coupled to one end or the other end of the rotating shaft in a state in which the rack portion is movably provided in the upper and lower sides of the moving bracket in the horizontal direction. Do.

In addition, the height of one side of the rack portion provided to be movable in the left and right directions on the inner upper side or the inner lower side of the movable bracket is higher than the other side height, and a groove having a predetermined depth extends in the longitudinal direction of the leg portion between the one side and the other side of the rack portion. A one-way bearing axially coupled to one end or the other end of the rotating shaft, the first one-way bearing being engaged with one side of the rack part; A second one-way bearing having a diameter larger than that of the first one-way bearing positioned inside the first one-way bearing and engaged with the other side of the rack portion, is preferably configured to adjust the rotational speed of the rotating shaft.

In addition, the conversion member is coupled to the other end of the fixed bar so as to be slidably moved in the left and right directions are located on both ends of the rotary shaft and one end of the first upper link and the second lower link on the upper and lower surfaces, respectively; 1 and 2 moving brackets; A fourth one-way which is provided at an inner lower side of the first moving bracket and an inner upper side of the second moving bracket, respectively, and is coupled to the lower end of the third one-way bearing axially coupled to one end of the rotary shaft and the other end of the rotary shaft. When the upper link and the lower link are folded in the engaged state at the upper end of the bearing, the rotary shaft is linearly moved by sliding along the first and second moving brackets so that the rotating shaft is unfolded when the upper link and the lower link are folded. At all times, it is preferable that the first and second rack portions are configured to be rotated in the forward direction through the third and fourth one-way bearings.

And, at one end or the other end of the rotary shaft and the fifth, six one-way bearings having the same diameter; A seventh one-way bearing positioned between the fifth and six one-way bearings and having a diameter smaller than that of the fifth and six one-way bearings; Located between the sixth one-way bearing and the other end inner surface of the fixed bar, the eight one-way bearing of the same diameter as the seventh one-way bearing is axially coupled at a predetermined interval, respectively, the conversion member of the fixed bar A movable bracket coupled to the other end so as to be slidably moved in one direction or the other end of the rotary shaft, and having one end of the first upper link and one end of the first lower link axially coupled to the upper and lower surfaces once; First, second, third and fourth elastic members respectively provided on an inner upper side and an inner lower side of the moving bracket; Between the lower ends of the first and second elastic members and the upper ends of the sixth and eight one-way bearings, and between the upper ends of the third and fourth elastic members and the lower ends of the fifth and seventh one-way bearings. 3, 4, 5, and 3, 4, 5, and 4 that differ from each other in heights engaged with upper ends of the sixth and eighth one-way bearings and lower ends of the fifth and seventh one-way bearings by elastic forces of the first, second, third and fourth elastic members, respectively. 6 rack part; Between the upper end of the third and fourth rack portion and the inner upper side of the moving bracket, between the lower end of the fifth and sixth rack portion and the inner lower side of the moving bracket, respectively, the left and right movable is possible to the third, fourth rack portion and the third 6 and 8 one-way bearings, and the first and second left and right moving plates for adjusting the engagement strength of the fifth and six one-way bearings and the fifth and sixth one-way bearings; The 4, 5, 6 racks are linearly moved by sliding along the moving bracket when the upper link and the lower link are folded, so that the rotation shaft is both folded and unfolded when the upper link and the lower link are folded. , 6, 7, 8 It is desirable to be able to rotate in a forward direction through the one-way bearing.

In addition, the bicycle comprises a motion conversion device, characterized in that the front wheel and the rear wheel is axially coupled to the vertical member and the rotating shaft of the motion conversion device, respectively.

Furthermore, it provides a training apparatus comprising the exercise conversion device.

According to the present invention, the user sitting on the saddle formed in the upper part of the upper link can fold and unfold the upper link and the lower link by using the pedals provided on both sides of the weight and the lower link, so that the user can easily and efficiently There is an effect that can be performed, such as leg exercise.

In addition, since the rotary plate of the conversion member is angularly moved upward and downward in accordance with the folding of the upper link and the lower link so that the rotary shaft rotates in the forward direction when the upper link and the lower link are folded or unfolded through a one-way bearing. The rotating shaft can be rotated in the forward direction more easily when the upper link and the lower link is folded or unfolded, as well as the angular motion according to the folding of the upper link and the lower link can be converted into a rotary motion more easily. It can be effective.

In addition, when the upper link and the lower link is folded, the linear motion along the movable bracket which is slidably coupled to the other end of the fixing bar in the left and right directions so that the rack portion of the conversion member can be located at one end or the other end of the rotating shaft. The rotating shaft is rotated in the forward direction when the upper link and the lower link is folded or unfolded through the one-way bearing, so that the rotating shaft is more easily in the forward direction when the upper and lower links are folded or unfolded. Not only can be rotated, there is an effect that the conversion unit can be easily converted to the rotational motion of the linear motion according to the folding of the upper link and the lower link.

In addition, since the rack portion of the conversion member is provided to be slidably moved in the left and right directions in the inner upper side or the inner lower side of the moving bracket, the user can release the engagement state between the rake portion and the one-way bearing as necessary. In addition, there is an effect that can be rotated in the reverse direction the rotating shaft coupled to the rear wheel.

In addition, the rack portion having one side height higher than the other side moves left and right in the inner upper side or the inner lower side of the moving bracket to engage with the first and second one-way bearings having different diameters coupled to one end or the other end of the rotating shaft. By doing so, there is an effect that can be adjusted more easily the rotational speed of the rotary shaft.

Furthermore, when the upper link and the lower link are folded, the first and second racks of the conversion member are slidably coupled to the other end of the fixed bar so as to be located at both ends of the rotation shaft. The rotary shaft is linearly moved along the two moving brackets so that the rotary shaft can be rotated in the forward direction when the upper link and the lower link are folded and unfolded through the third and fourth one-way bearings. When the lower link is folded and unfolded, there is an effect that it can be easily rotated in the forward direction.

A fifth, six, seven and eight one-way bearings are axially coupled to one end or the other end of the rotary shaft, and the third and fourth rack portions of the conversion member are engaged with the upper ends of the sixth and eight one-way bearings. Left and right sides of the fixing bar such that the third, fourth, fifth, and sixth leg portions may be positioned at one end or the other end of the rotating shaft while the fifth and sixth leg portions are engaged with the lower ends of the fifth and seventh one-way bearings. Linear motion along the moving bracket coupled to the sliding movement in the direction to the forward direction through the third, fourth, fifth, six-way bearings when the upper and lower links are folded and unfolded Since the rotation axis can be rotated more easily in the forward direction both when the upper link and the lower link is folded and unfolded, in particular, the rotation through the first, second left and right movable plates It is effective to adjust the rotation speed of the shaft more easily.

In addition, when the front wheel and the rear wheel are respectively coupled to the vertical member and the rotating shaft of the present motion converter, not only a bicycle capable of moving forward or backward can be formed, but in particular, the user moves the bicycle forward and the leg movement. There is an effect that can be performed.

In addition, in the case of forming a training device such as a fitness cycle, including the exercise conversion device, the user can perform the waist and leg movements more efficiently by adjusting the rotation load of the rotary shaft.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Of course, the scope of the present invention is not limited to the following examples, and various modifications can be made by those skilled in the art without departing from the technical gist of the present invention.

1 is a schematic view showing a motion conversion apparatus 3 as a first embodiment of the present invention.

As shown in FIG. 1, the motion converting apparatus 3, which is the first embodiment of the present invention, has an upper link 10, a lower link 30, a handle 50, a rotation shaft 90, and a converting unit 70. It is configured to include.

First, the upper link 10 is folded and unfolded by the user, the first upper link 101, the other end is rotated in the vertical direction based on one end; One end of the second upper link 107 is axially coupled to the other end of the first upper link 101 so that one end can be rotated in the vertical direction along the other end of the first upper link 101 based on the other end. The saddle 103 is formed on the upper portion of any one of the first and second upper links 101 and 107.

Here, the saddle 103 may be formed on the upper portion of the second upper link 107, for example, as shown in Figure 1, wherein the position of the saddle 103 according to the physical condition of the user In order to adjust the vertical axis formed in the lower portion of the saddle 103 (105 in FIG. 2) is screwed to any one of the screw hole 109 formed at a predetermined interval on the upper portion of the second upper link 107. good.

Next, the lower link 30 is folded and unfolded by the user like the upper link 10, and is positioned below the upper link 10 as shown in FIG. A first lower link 301, the other end of which rotates in the vertical direction in the state in which the upper link 101 is axially coupled; The other end is axially coupled with the other end of the second upper link 107, and one end is axially coupled with the other end of the first lower link 301 to rotate up and down along the other end of the first lower link 301. A second lower link 303 that moves, and the pedal 305 on which the sole part of the user is seated is fixed to the front and rear surfaces of any one of the first and second lower links 301 and 303. It is provided.

Next, the handle 50 is held by the user sitting on the saddle 103 with both hands, for example, the second upper link 107 of the upper link 10 as shown in FIG. The other end of the lower link 30 is formed on the upper end of the vertical member 501 provided at a distance adjacent to the other end of the second lower link (303).

The vertical member 501 is, for example, as shown in Figure 1 so that the handle 50 can be rotated in the left and right direction of the fixed length 503 extending to the other end of the second upper link 107 Once it can be axially rotatably coupled to the inside in the left and right directions.

Next, the conversion unit 70 converts the angular motion and the linear motion of the upper link 10 and the lower link 30 into a rotational motion by the folding, the upper link 10 and the lower link ( It is provided on both the front or rear or front and rear surfaces of the 30) to convert the angular movement according to the folding of the upper link 10 and the lower link 30 to a rotational movement or of the upper link 10 and the lower link 30 One end is connected to convert the linear motion according to the fold of the upper link 10 and the lower link 30 to a rotary motion, which will be described in detail below for convenience of description.

Next, the rotation shaft 90 is rotated due to the rotational movement converted by the conversion unit 70, for example, one end of the first upper link 101 and the lower portion of the upper link (10). One end of the first lower link 301 of the link 30 is axially coupled or one end of the first upper link 101 of the upper link 10 and the first lower link 301 of the lower link 30 It is located at a distance adjacent to one end.

One-way bearing 901 which is engaged with the conversion unit 70 is axially coupled to one end, the other end, or both ends of the rotation shaft 90.

The one-way bearing 901 is a shaft composed of a structure that transmits power in one direction, also called a one-way clutch, and a reciprocating rotational motion (rack and pinion, crank and lever). ) Is used for intermittent rotational movement in a certain direction, to prevent reversal, and to prevent circumference.

The one-way bearing 901 is a well-known technology and at the same time it will be understood by those skilled in the art to which the present invention pertains will be clearly understood to be carried out the following detailed description.

2 and 3 are front views schematically illustrating a process in which the upper link 10 and the lower link 30 of FIG. 1 are folded and unfolded.

More specifically, as shown in Figures 2 and 3, the conversion unit 70, the upper end is rotated to the left and right in the state that the lower end is coupled to the front or rear of the first lower link (301) A moving bar 701; The center is axially coupled to the front or rear of the first upper link 101, one end is engaged with the one-way bearing 901 is axially coupled to one end or the other end of the rotary shaft 90, the other end is It may be configured; a rotary plate 705 is formed to extend the connection bar 703 is axially coupled to the top of the moving bar 901.

Rotating plate 705 of the conversion unit 70 is angular movement in the vertical direction as shown in Figure 2 and 3 according to the folding of the upper link 10 and the lower link 30, the one-way bearing 901 Through the rotary shaft 90 to be rotated in the forward direction when the upper link 10 and the lower link 30 is folded or unfolded, whereby the rotating shaft 90 and the upper link 10 When the lower link 30 is folded or unfolded, it is easier to rotate in the forward direction as well as the angular motion of the upper link 10 and the lower link 30 in the fold of the conversion unit 70 is more There is an advantage that can be easily converted to rotational motion.

4 is a perspective view schematically showing a motion converter 3 as a second embodiment of the present invention, and FIG. 5 is a cross-sectional view taken along line AA of FIG.

The motion converting apparatus 3 according to the second embodiment of the present invention is largely the same as the first embodiment, and the upper link 10, the lower link 30, the handle 50, the converting unit 70, and the rotation shaft 90 are large. It is configured to include.

However, the handle 50 is, for example, as shown in FIG. 4, for example, the other end of the second upper link 10 of the upper link 10 and the second lower link 303 of the lower link 30. It may be formed on the upper end of the vertical member 501 rotatably axially coupled to one end of the fixing bar 710 to be described later to be located at a distance adjacent to the other end.

In addition, as shown in FIGS. 4 and 5, the converter 70 of the second embodiment has the other end of the second upper link 107 and the other end of the second lower link 303 once the upper and lower surfaces thereof. A fixed bar 710 which is axially coupled to each other, and the rotation shaft 90 is axially coupled to the other end so as to be positioned at a distance adjacent to one end of the first upper link 101 and the first lower link 301; It is coupled to the other end of the fixed bar 710 in a sliding movement in the horizontal direction and is located at one end or the other end of the rotary shaft 90 and one end of the first upper link 101 and the first lower link (1) on the upper and lower surfaces ( One end of the movement bracket 731 is axially coupled to each other, and the one-way bearing 901 is provided on the upper or inner lower side of the movable bracket 731 is axially coupled to one end or the other end of the rotary shaft (90) When the upper link 10 and the lower link 30 is folded in the state engaged with the top or bottom of the) by sliding the linear movement by sliding along the moving bracket 731, the rotary shaft 90 is the upper And a conversion member 730 made up of a rake portion 733 that allows the link 10 and the lower link 30 to be rotated in the forward direction through the one-way bearing 901 when folded or unfolded. Can be.

On both ends of the moving bracket 731 of the conversion member 730, the moving wheel 735 moving along the guide groove 711 extending in the longitudinal direction at a predetermined depth on the upper and lower surfaces of the other end of the fixed bar 710, the shaft It may be provided in a coupled state.

6 and 7 are front views schematically illustrating a process in which the upper link 10 and the lower link 30 of FIG. 4 are folded and unfolded.

More specifically, the rack portion 733 of the conversion member 730 is one end or the other end of the rotary shaft 90 when the upper link 10 and the lower link 30 is folded as shown in Figs. The rotary shaft 90 through the one-way bearing 901 by linearly moving along the movable bracket 731 coupled to the other end of the fixed bar 910 to be slidably movable in the left and right directions to be located in the When the upper link 10 and the lower link 30 is folded or unfolded to be able to rotate in the forward direction, whereby the rotary shaft 90 is folded when the upper link 10 and the lower link 30 Or, when unfolded, not only can be easily rotated in the forward direction, but also the linear motion according to the folding of the upper link 10 and the lower link 30 can be converted to the rotational movement more easily. There is an advantage.

8 and 9 are cross-sectional views schematically illustrating a state in which the rack portion 733 of FIG. 5 is slidably moved in the left and right directions within the moving bracket 731.

Next, the rack portion 733 of the conversion member 730 is axially coupled to one end or the other end of the rotating shaft 90 in a state provided to be movable in the left and right direction on the inner upper side or the inner lower side of the moving bracket 731. It is preferable that the one-way bearing 901 is selectively engaged.

More specifically, one end of the rack portion 733 of the conversion member 730 is connected to the other side of the rack portion 733 as shown in, for example, a) and b) of FIG. A wire 110 connected to a pull handle (not shown) separately provided on the 50; One end is connected to one side of the rack portion 733, the other end is connected to the inner surface of the moving bracket 731 elastic made of a spring or the like provided horizontally on the inner upper or lower side of the moving bracket 731 The member 130 may be slidably moved in the left and right directions from the inner upper side or the inner lower side of the movable bracket 731.

When the user manipulates the pull handle (not shown) in a pulled state, the wire 110 is pulled toward the handle 50 and the elastic member 130 is inflated, and the rack portion 733 is shown in FIG. As shown in b) of FIG. 8, the sliding movement in the left direction is engaged with the one-way bearing 901.

In addition, when the user releases the pulling state of the pull handle (not shown), the rake portion 733 is slidably moved to the right as shown in FIG. 8A due to the elastic member 130 contracted. At this time, the engagement state of the rake portion 733 and the one-way bearing 901 can be released.

As the engagement state of the rack portion 733 and the one-way bearing 901 of the conversion member 730 is released, the user rotates the rotary shaft 90, which is axially coupled with the rear wheel, to be described later. You can do it.

Next, as shown in FIG. 9, one side height h ₁ of the rack portion 733 is provided to be movable in the left and right directions on the inner upper side or the inner lower side of the movable bracket 731, than the other side height h ₂ . The one-way groove 733a having a predetermined depth is extended between the one side and the other side of the rack portion 733 in the longitudinal direction of the rack portion 733, and the one-way axially coupled to one end or the other end of the rotating shaft 90. The bearing 901 includes a first one-way bearing 910 which is engaged with one side of the rack portion 733; A second one-way bearing 911 having a diameter larger than that of the first one-way bearing 910 which is positioned inside the first one-way bearing 910 and is engaged with the other side of the rack portion 733. It is preferable to adjust the rotation speed of the rotating shaft (90).

More specifically, as the user adjusts the degree of pulling of the pull handle (not shown), one side and the other side of the rack portion 733 may be seen in the first, second, and second portions of FIGS. The two-way bearings 910 and 911 may be engaged with or engaged with each other.

Here, since the diameter (d ₂ ) of the second one-way bearing (911) is larger than the diameter (d ₁ ) of the first one-way bearing (910), the second one-way bearing (911) and the rack portion (733). The rotational speed t ₂ of the rotation shaft 90 in the state where the other side is engaged is the rotation shaft (1) in which one side of the first one-way bearing 910 and the rack portion 733 is in engagement. It is slower than the rotation speed t ₁ of 90) (t ₁ > t ₂ ).

The rack portion 733 whose one side height h ₁ is higher than the other side height h ₂ moves left and right in the upper or inner lower portion of the movable bracket 731 to one end or the other end of the rotation shaft 90. By being engaged with the first and second one-way bearings 910 and 911 having different axially coupled diameters, there is an advantage that the rotational speed of the rotating shaft 90 can be more easily adjusted.

When the user completely releases the pulled state of the pull handle (not shown), as shown in a) of FIG. 9, the engagement state between the rack portion 733 and the first and second one-way bearings 910 and 911 is In this state, the user can in particular rotate the rotary shaft 90 axially coupled with the rear wheel as necessary in the reverse direction.

FIG. 10 is a perspective view schematically illustrating a state in which the conversion member 730 of FIG. 5 is located at both ends of the rotation shaft 90, and FIG. 11 is a cross-sectional view taken along line BB of FIG. 10.

Next, the conversion member 730 is coupled to the other end of the fixed bar 710 to be slidably moved to the left and right as shown in FIGS. 10 and 11 are located at both ends of the rotary shaft 90, once the upper and lower parts First and second moving brackets 735 and 737 having one end of the first upper link 101 and one end of the first lower link 301 axially coupled to a surface thereof; A lower end of the third one-way bearing 930 which is provided at an inner lower side of the first moving bracket 735 and an inner upper side of the second moving bracket 737 and axially coupled to one end of the rotating shaft 90; The first and second moving brackets when the upper link 10 and the lower link 30 are folded in a state in which the upper link 10 and the lower link 30 are engaged with the upper end of the fourth one-way bearing 931 axially coupled to the other end of the rotating shaft 90. The first and second rack portions allow the rotary shaft 90 to be rotated in the forward direction when both the upper link 10 and the lower link are folded and unfolded by sliding the linear movement by sliding along 735 and 737. It is good to consist of (750, 751).

Here, the first and second rack portions 750 and 751 are formed by the wire 110 and the elastic member 130 as described above, respectively, of the lower side of the first moving bracket 735 and the second moving bracket 737. It can be moved in the left and right direction from the inside lower side.

When the upper link 10 and the lower link 30 is folded, the fixing bar so that the first and second rack portions 750 and 751 of the conversion member 730 may be located at both ends of the rotation shaft 90. The rotary shaft through the third and fourth one-way bearings 930 and 931 by linearly moving along the first and second moving brackets 735 and 737 slidably coupled to the other end of the 710 in a slidable direction. Since the upper shaft 10 and the lower link 30 can be rotated in the forward direction both when folded and unfolded, the rotary shaft 90 is the upper link 10 and the lower link 30 There is an advantage that can be easily rotated in the forward direction both when folded and unfolded.

12 is a cross-sectional view schematically illustrating a state in which the left and right moving plates 970 of the conversion member 730 are moved left and right.

Next, as shown in FIG. 12, at one end or the other end of the rotating shaft 90, fifth and six one-way bearings 950 and 951 having the same diameter; A seventh one-way bearing 953 positioned between the fifth and six one-way bear rings 950 and 951 and having a diameter smaller than that of the fifth and six one-way bearings 950 and 951; Located between the sixth one-way bearing 951 and the other end inner surface of the fixed bar 710, the eighth one-way bearing 955 having the same diameter as the seventh one-way bearing 953, respectively, at regular intervals Axially coupled, the conversion member 730 is coupled to the other end of the fixed bar 710 so as to be slidably moved in the left and right directions and positioned at one end or the other end of the rotary shaft 90, and the first upper link on the upper and lower surfaces thereof. A movement bracket 731 to which one end of the 101 and one end of the first lower link 301 are respectively axially coupled; First, second, third, and fourth elastic members 151, 153, 155, and 157 respectively provided on an inner upper side and an inner lower side of the moving bracket 731; Between the lower end of the first and second elastic members 151 and 153 and the upper end of the sixth and eighth one-way bearings 951 and 955, the upper end of the third and fourth elastic members 155 and 157 and the fifth. And the sixth and eighth one-way bearings 951, which are provided between lower ends of the seventh one-way bearings 950 and 953, respectively, by the elastic force of the first, second, third, and fourth 151, 153, 155, and 157. Third, fourth, fifth, and sixth recesses 770, 771, 790, and 791 having different heights engaged with the upper end of the 955 and the lower ends of the fifth and seventh one-way bearings 950 and 953; Between the upper ends of the third and fourth rack portions 770 and 771 and the inner upper side of the movable bracket 731, and between the lower ends of the fifth and sixth rack portions 790 and 791 and the inner lower side of the movable bracket 731. Respectively provided to move left and right, respectively, the engagement strength of the third and fourth rack portion 770, 771 and the sixth, eight-way bearings (951, 955) and the fifth, sixth rack portion (790, 791) and the fifth 5, 7 one-way bearings (950, 953) to adjust the engagement coupling strength of the first and second left and right moving plates (793, 795); including, and the third, fourth, fifth, sixth rack portion 770, 771, 790, and 791 are linearly moved by sliding along the movable bracket 731 when the upper link 10 and the lower link 30 are folded, such that the rotary shaft 90 is connected to the upper link 10. ) And the lower link 30 may be rotated in the forward direction through the fifth, sixth, seventh and eighth one-way bearings 950, 951, 953, 955 both when folded and unfolded.

The third, fourth, fifth, and sixth rack portions 770, 771, 790, and 791 are slidably movable in left and right directions at the other end of the fixing bar 910 so that the third, fourth, fifth, and sixth rack portions 770, 771, 790, and 791 may be positioned at one end or the other end of the rotation shaft 90. The rotary shaft 90 and the upper link 10 and the lower through the fifth, six, seven, eight one-way bearings (950, 951, 953, 955) by linear movement along the combined movement bracket 731 Since the link 30 can be rotated in the forward direction both when it is folded and when it is unfolded, the rotary shaft 90 is more easily both when the upper link 10 and the lower link 30 are folded and unfolded. Not only can be rotated in the forward direction, in particular, through the first, second left and right moving plate (793, 795) has the advantage that the rotational speed of the rotation shaft 90 can be more easily adjusted.

More specifically, the first and second left and right moving plates 793 and 795 are connected to one side of one side of the first and second left and right moving plates 793 and 795, and the other end of the handle 50. A wire 150 connected to a pull handle (not shown) separately provided on the); One end is connected to a vertical bulkhead 171 formed at an inner upper side and a lower side of the movable bracket 731 to be positioned at a distance adjacent to the first and second left and right movable plates 793 and 795, and the other end of the first and second left and right movable plates 793 and 795. It can be moved left and right by; an elastic member 170 made of a spring or the like connected to the other side of the two left and right moving plates (793, 795)

That is, the first and second left and right moving plates 793 and 795 are moved left and right by the pulling degree of the wire 150 connected to the pulling handle (not shown) and the elastic force of the elastic member 170.

For example, as shown in FIG. 12, the first left and right movable plate 793 is formed by the wire 150 and the elastic member 170, and the upper end of the third rack portion 770 and the movable bracket 731. The third and fifth legs 770 and 790 are moved between the upper side and the second and the right and left movable plates 795 are moved between the lower end of the fifth rack portion 790 and the inner lower side of the movable bracket 731. The first and second left and right movable plates 793 and 795 may be more strongly engaged with the upper end of the sixth one-way bearing 951 and the lower end of the fifth one-way bearing 950, respectively. In this state, when the third and fifth rack parts 770 and 790 slide along the movable bracket 731 to be linearly moved, the rotary shaft 90 through the fifth and six one-way bearings 950 and 951. This can be rotated in the forward direction.

Meanwhile, the fourth and sixth rack portions 771 and 791 are formed on the upper end of the eighth one-way bearing 955 and the seventh one-way bearing 953 by the elastic force of the second and fourth elastic members 153 and 157. Since the third and fifth rack portions 770 and 790 are slidingly engaged along the movement bracket 731 because they are relatively weakly engaged at the lower end of the upper and lower sides thereof, they swing upward and downward.

That is, the fourth and sixth rack portions 771 and 791 may not rotate the rotation shaft 90 in the forward direction through the eighth and seventh one-way bearings 955 and 953.

The exercise conversion device 3 configured as described above is a pedal 305 which is provided on the front and rear surfaces of the lower link 30 by the user sitting on the saddle 103 formed on the upper link 10. Since the upper link 10 and the lower link 30 can be folded and unfolded using), the user can perform the waist and leg movements more easily and efficiently.

13 and 14 are perspective views schematically showing a bicycle 5 provided with the present motion conversion device 3.

Next, the front wheel 51 and the rear wheel 53 are formed at the lower periphery of the vertical member 501 of the motion conversion apparatus 3 and at both ends of the rotary shaft 90 or at the outer circumferential periphery of the center, respectively, in the first and second embodiments. This can be axially coupled, which makes it possible to form a bicycle 5 which can be moved forward or backward by the user as shown in FIGS. 13 and 14.

When the front wheel 51 and the rear wheel 53 are axially coupled to the vertical member 501 and the rotation shaft 90 of the motion converter 3, respectively, the bicycle 5 may be formed to move forward or backward. In particular, there is an advantage that the user can perform the waist and leg movements while advancing the bicycle (5).

15 and 16 are perspective views schematically showing a training apparatus 7 equipped with the present motion converter 3.

Next, for example, the training device 7 such as a fitness cycle may be formed by including the exercise converter 3 described above in the first and second embodiments.

More specifically, the motion converting apparatus 3 described above in the first and second embodiments may be fixedly installed on an upper side of the separate plate part 300 which is fixed to the floor, for example, as shown in FIGS. 15 and 16. Can be.

Here, although not shown in the drawings, the upper side of the plate portion 300 is provided with a load device for adjusting the amount of rotation load of the rotary shaft 90, for example by applying a friction force to the rotary shaft 90 of the motion conversion device (3). Can be.

The load device may be composed of a weight method using gravity, a hydraulic cylinder method using a fluid viscosity resistance, a brake method to apply a friction force to the rotating wheel, a magnetic method to generate an induction current by bringing a magnetic material close to the rotating conductor. This is a well-known technology and will be apparent to those skilled in the art to which the present invention pertains. Therefore, the following detailed description will be omitted.

In the case of forming a training device 7 such as a fitness cycle including the exercise conversion device 3, a user can perform a waist and leg exercise more efficiently by adjusting the amount of rotation of the rotating shaft 90. There is an advantage.

1 is a perspective view schematically showing a motion conversion device as a first embodiment of the present invention;

2 and 3 are front views schematically showing a process in which the upper and lower links of FIG. 1 are folded and unfolded,

4 is a perspective view schematically showing a motion conversion device as a second embodiment of the present invention;

5 is a cross-sectional view taken along the line AA of FIG. 4,

6 and 7 are front views schematically showing a process in which the upper and lower links of FIG. 4 are folded and unfolded,

8 and 9 are cross-sectional views schematically illustrating a state in which the rack portion of FIG. 5 is slidably moved in the left and right directions within the moving bracket.

10 is a perspective view schematically showing a state in which the conversion member of FIG. 4 is located at both ends of a rotation shaft,

FIG. 11 is a cross-sectional view taken along line BB of FIG. 10.

12 is a cross-sectional view schematically showing a state in which the left and right moving plates of the conversion member are moved left and right,

13 and 14 are perspective views schematically showing a bicycle equipped with the present motion conversion device,

15 and 16 are perspective views schematically showing a training apparatus equipped with the present motion conversion apparatus.

*** Explanation of symbols for main parts of drawing ***

3; A motion converter, 5; bicycle,

7; Training apparatus, 10; Upper Link,

30; Lower link, 50; handle,

70; A converter 90; Axis of rotation.

Claims (9)

A first upper link having the other end rotated in an up and down direction with respect to one end, and one end of the first upper link having one end rotated in an up and down direction along the other end of the first upper link with respect to the other end; An upper link axially coupled to the upper link, the upper link having a saddle formed on an upper portion of one of the first and second upper links; Located in the lower portion of the upper link, the first lower link that the other end is rotated in the vertical direction in the state that one end is axially coupled with the one end of the first upper link, and the other end is axially coupled with the other end of the second upper link And one end of the second lower link axially coupled to the other end of the first lower link to rotate in the vertical direction along the other end of the first lower link, and the front and rear surfaces of any one of the first and second lower links. A lower link provided with a pedal; A handle formed at an upper end of the vertical member provided at a distance adjacent to the other end of the upper link and the lower link; A conversion unit for converting an angular motion or a linear motion according to the folding of the upper link and the lower link into a rotational motion; A one-way bearing that is rotated due to the rotational movement of the conversion unit in engagement with the conversion unit, and a rotational shaft that rotates through the one-way bearing; . The method of claim 1, The conversion unit and the lower end is a movement bar that the upper end is rotated to the left and right in a state coupled to the front or rear of the first lower link; A center portion is axially coupled to the front or rear surface of the first upper link, and one end is engaged with the one-way bearing axially coupled to one or the other end of the rotary shaft, and the connecting bar is axially coupled to the upper end of the movable bar at the other end. Consisting of a rotating plate; The rotating plate of the conversion unit is angularly moved in the vertical direction according to the folding of the upper link and the lower link so that the rotary shaft rotates in the forward direction when the upper link and the lower link is folded or unfolded through the one-way bearing. Motion inverter. The method of claim 1, The conversion unit has the rotary shaft so that the other end of the second upper link and the other end of the second lower link are axially coupled to the upper and lower surfaces, respectively, and positioned at a distance adjacent to one end of the first upper link and one end of the first lower link. A fixed bar axially coupled to the other end; A movable bracket coupled to the other end of the fixed bar in a slidable direction and positioned at one end or the other end of the rotary shaft and having one end of the first upper link and one end of the first lower link axially coupled to the upper and lower surfaces thereof; The movable bracket is provided when the upper link and the lower link are folded in an engaged state with an upper end or a lower end of the one-way bearing axially coupled to one end or the other end of the rotating shaft and provided at an inner upper side or an inner lower side of the movable bracket. And a conversion member made of a rack portion which allows the rotary shaft to rotate in a forward direction through the one-way bearing when the upper and lower links are folded or unfolded by sliding along the linear movement. Motion inverter characterized in that. The method of claim 3, wherein The rack member of the conversion member is selectively engaged with the one-way bearing axially coupled to one end or the other end of the rotating shaft in a state in which it is provided to be movable in the left and right directions on the inner upper side or the inner lower side of the moving bracket. Motion inverter. The method of claim 4, wherein The height of one side of the rack portion provided to be movable in the left and right directions on the inner upper side or the inner lower side of the moving bracket is higher than the other height, and a groove having a predetermined depth is formed in the longitudinal direction between the one side and the other side of the rack portion. , The one-way bearing axially coupled to one end or the other end of the rotating shaft includes a first one-way bearing engaged with one side of the rack portion; A second one-way bearing having a diameter larger than that of the first one-way bearing positioned inside the first one-way bearing and engaged with the other side of the rack portion, wherein the rotation speed of the rotating shaft is adjusted. Motion inverter. The method of claim 3, wherein The conversion member is coupled to the other end of the fixed bar so as to be slidably movable in the left and right directions, and are located at both ends of the rotation shaft, and one end of the first upper link and the second lower link are respectively axially coupled to the upper and lower surfaces thereof. 2 moving brackets; A fourth one-way which is provided at an inner lower side of the first moving bracket and an inner upper side of the second moving bracket, respectively, and is coupled to the lower end of the third one-way bearing axially coupled to one end of the rotary shaft and the other end of the rotary shaft. When the upper link and the lower link are folded in the engaged state at the upper end of the bearing, the rotary shaft is linearly moved by sliding along the first and second moving brackets so that the rotating shaft is unfolded when the upper link and the lower link are folded. When the motion conversion device, characterized in that consisting of the first, second rack portion to be rotated in the forward direction through the third, fourth one-way bearing at all. The method of claim 3, wherein First and second one-way bearings having the same diameter as one end or the other end of the rotating shaft; A seventh one-way bearing positioned between the fifth and six one-way bearings and having a diameter smaller than that of the fifth and six one-way bearings; Located between the sixth one-way bearing and the other end inner surface of the fixed bar, and the eighth one-way bearing of the same diameter as the seventh one-way bearing are axially coupled at regular intervals, The converting member is slidably coupled to the other end of the fixed bar in a lateral direction and is positioned at one end or the other end of the rotation shaft, and one end of the first upper link and one end of the first lower link are respectively axially coupled to the upper and lower surfaces thereof. Moving brackets; First, second, third and fourth elastic members respectively provided on an inner upper side and an inner lower side of the moving bracket; Between the lower ends of the first and second elastic members and the upper ends of the sixth and eighth one-way bearings, and between the upper ends of the third and fourth elastic members and the lower ends of the fifth and seventh one-way bearings, respectively. 3, 4, 5, 6, wherein the heights engaged with the upper ends of the sixth and eighth one-way bearings and the lower ends of the fifth and seventh one-way bearings are respectively different by elastic forces of the second, third and fourth elastic members. Lekbu; Between the upper end of the third and fourth rack portion and the inner upper side of the moving bracket, between the lower end of the fifth and sixth rack portion and the inner lower side of the moving bracket, respectively, the left and right movable is possible to the third, fourth rack portion and the third 6 and 8 one-way bearings, and the first and second left and right moving plate for adjusting the engagement strength of the fifth and sixth one-way bearing and the fifth and six one-way bearings; The third, fourth, fifth, and sixth rack portions slide linearly by moving along the moving bracket when the upper link and the lower link are folded, so that the rotary shaft is folded and unfolded when the upper link and the lower link are folded. The fifth, six, seven, eight motion conversion apparatus characterized in that to be rotated in the forward direction through the one-way bearing. A bicycle comprising the motion converter of any one of claims 1 to 7, wherein the front wheel and the rear wheel are axially coupled to the vertical member and the rotating shaft of the motion converter. Training apparatus comprising a motion conversion device according to any one of claims 1 to 7.

Images