KR20110028125A - Gear apparatus and bicycle using there of - Google Patents

Abstract

PURPOSE: A gear unit and a bicycle using the same are provided to reduce vibration due to rotating and reciprocating movement and to efficiently transfer power by applying a symmetrical type of gears. CONSTITUTION: A gear unit comprises a first fixed gear(111a), a first change gear(112a), a first rotating gear(113a), a first connecting arm(114a), and a first reciprocating arm(115a). The first fixed gear is fixed to a frame(110) and supports a gear unit(100). The first change gear engages with the first fixed gear and rotates. The first rotating gear engages with the first change gear and rotates. The first connecting arm connects the centers of the first fixed gear, the first change gear and the first rotating gear. One side of the first reciprocating arm is fixed to the first rotating gear and rotates with it.

Description

GEAR APPARATUS AND BICYCLE USING THERE OF}

The present invention relates to an apparatus for converting a reciprocating motion (or rotational motion) using a gear into a rotational motion (or reciprocating motion) and a bicycle using the same.

Cranks are widely used as a device for converting linear reciprocating motion (or rotational motion) into rotational motion (reciprocating motion).

The crank is composed of a crank shaft, a crank arm, and a crank pin. When the reciprocating motion is transmitted to the crank pin, the crank pin is a device for rotating the crank shaft by performing a circular motion having the length of the crank arm as a radius.

The prior art for a device for converting such a reciprocating motion (or rotational movement) into a rotational motion (or reciprocating motion) is Korean Patent Publication No. 10-2007-0039763 (name of the invention: the crankshaft of the engine) and the like.

However, the above cited technology discloses only a technique of manufacturing a crank pin separately to prevent the crank from being broken by the force applied to the crank, and the rotation axis of the crank pin for the rotational movement of the crank arm is in one direction of the crank arm. As it is deflected, it does not solve the structural problem of the crank, in which excessive force is applied only to the deflected rotating shaft, resulting in power loss and device imbalance generated in the process of switching between rotational and reciprocating motion.

Accordingly, the present invention solves the power dissipation and device imbalance generated in the process of converting the reciprocating motion (or rotational motion) into the rotational motion (or reciprocating motion) using a gear, and provides a technology capable of transmitting power efficiently. It aims to do it.

According to one aspect of the present invention, a gear device includes: a first fixed gear; A first shift gear rotating in engagement with the first fixed gear; A first rotary gear meshed with the first shift gear to rotate; A first connecting arm connecting a center of the first fixed gear, the first switching gear, and the first rotary gear; A first reciprocating arm having one side fixed to the first rotary gear to rotate together with the first rotary gear; The other side of the first reciprocating arm includes a reciprocating motion, and as the first rotary gear revolves the first fixed gear, one side of the first connecting arm connected to the center of the first fixed gear. The rotary motion is characterized in that the rotational motion and the reciprocating motion is switched to each other.

The gear device according to an aspect of the present invention includes a second fixed gear having a central axis on an axis coaxial with a central axis of the first fixed gear; A second switching gear that rotates in engagement with the second fixed gear; A second rotary gear meshed with the second switching gear to rotate; A second connecting arm connecting the second fixed gear, the second switching gear, and the second rotary gear; A second reciprocating arm fixed to the second rotary gear; It characterized in that it further comprises.

In addition, the radius (R1) of the first fixed gear is characterized in that twice the radius (r1) of the first rotary gear.

Here, the radius R1 of the first fixed gear and the radius R2 of the second fixed gear are twice the radius r1 of the first rotary gear and the radius r2 of the second rotary gear. It is done.

In addition, the radius (R1) of the first fixed gear is provided to be the same as the radius (R2) of the second fixed gear; The radius (r1) of the first rotary gear is characterized in that the same as that provided with the radius (r2) of the second rotary gear.

The length of the first connecting arm and the length of the first reciprocating arm are the same.

In addition, the length of the second connecting arm and the second reciprocating arm is characterized in that the same.

Wherein the first connecting arm is connected to a rotation center of the first fixed gear; The second connecting arm is connected to a rotation center of the second fixed gear; The first connecting arm may be disposed at a position corresponding to a position rotated 180 degrees with respect to the second connecting arm.

On the other hand, in order to achieve this object, the bicycle according to one aspect of the present invention, a conversion unit for converting a linear reciprocating motion into a rotational motion; A driving unit for providing power to the conversion unit; A steering unit for controlling power generated by the driving unit; A frame unit for supporting the driving unit, the conversion unit, and the steering unit; It includes, characterized in that the conversion unit is provided with a gear device according to claim 2.

And, the drive unit, a pedal for linear reciprocating motion; First transmission means connected to the pedal to transmit the linear reciprocating motion of the pedal to the converter; A driving wheel that rotates through the rotational movement converted by the conversion unit; And second transmission means connected to the conversion unit for transmitting a rotational movement to the drive wheel. Characterized in that it comprises a.

In addition, the mattress for distributing the load of the human body; It characterized in that it further comprises.

As described above, the gear device according to the present invention has one side of the rotating plate because the other force of the reciprocating motion (or rotational movement) and the rotating motion (or reciprocating motion) is converted using the same axis without being converted using different axes of the rotating plate. There is an effect of resolving power dissipation and device imbalance caused by the shaft in the direction.

In addition, by applying the gears symmetrical to each other there is an effect that can reduce the vibration caused by the rotational and reciprocating motion and transmit power efficiently.

In addition, the bicycle using the gear device has the effect of remarkably improving the driving performance by eliminating the power loss and the imbalance of the device, and can drive to a long distance by using the bicycle through such a driving performance improvement to reduce fuel and traffic jams It has an economic effect.

In addition, the bicycle using the gear device can be driven in a variety of forms, through which there is an effect of reducing the fatigue of the waist and hips the body weight is concentrated. For example, in the case of a prone bicycle, the pressure applied to the lower back and hips can be distributed to the abdomen and the thighs, thereby reducing the fatigue of the lower back and hips while driving. In addition, in order to reduce friction with air during high-speed driving, the upper body needs to be bent. In the case of a prone bicycle, it is possible to block the pain caused by bending the waist at high speed without being able to bend the waist.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings, for the sake of brevity of description, overlapping descriptions will be omitted or compressed as much as possible.

First Embodiment

The gear device 100 according to the present embodiment relates to a technique for converting a reciprocating motion (or a rotational motion) into a rotational motion (or a reciprocating motion).

1 and 2 are a perspective view and an exploded perspective view of the gear device 100 according to the present embodiment.

In the gear device 100 according to the present embodiment, as shown in FIGS. 1 and 2, the frame 110, the first fixed gear 111a, the first switching gear 112a, and the first rotary gear 113a. ), A first connecting arm 114a, a first reciprocating arm 115a, and the like.

Frame 110 is a device that supports the torque and inertial forces generated when converting the reciprocating motion (or rotational movement) into the rotational motion (or reciprocating motion), it is preferably provided with a material such as alloy or aluminum depending on the intended use.

The first fixed gear 111a is a device that is fixed to the frame 110 to support the gear device 100. In addition, in order to fix the first fixing gear 111a more firmly, it is preferable to fix using a plurality of fixing pins (P).

The first switching gear 112a is a device rotating in engagement with the first fixed gear 111a and may be formed in various sizes irrespective of the first fixed gear 111a and the first rotary gear 113a.

The first rotary gear 113a is a device that rotates in engagement with the first switching gear 112a, and serves to change the reciprocating motion (or rotational motion) to the rotational motion (or reciprocating motion) together with the first switching gear 112a. Do it.

The first connecting arm 114a is connected to the first fixed gear 111a, the first switching gear 112a, and the first rotary gear 113a, so that the first switching gear 112a is centered on the first fixed gear 111a. ) And the first rotating gear 113a revolves in the same direction, and connecting the respective rotation centers of the first fixed gear 111a, the first switching gear 112a and the first rotating gear 113a. desirable. In this case, one axis of the first connection arm 114a connected to the center of the first fixed gear 111a is referred to as a first rotation shaft 114aa. In addition, the first rotary shaft 114aa may be supported by the first fixed gear 111a or the frame 110, but is preferably connected to the frame 110 for firm support of the first rotary shaft 114aa. Do.

One side of the first reciprocating arm 115a is fixed to the first rotary gear 113a to move in a circular motion with the first rotary gear 113a about an axis fixed to the first rotary gear 113a. One reciprocating shaft 115aa is formed. At this time, the length of the first reciprocating arm 115a is preferably formed to be the same length as the first connecting arm 114a. Thus, the length of the first reciprocating arm 115a and the first connecting arm 114a is the same. As a result, the first reciprocating shaft 115aa lies on the same line as the central axis of the first fixed gear 111a.

Next, the operation state of the gear device 100 according to the present embodiment will be described in more detail with reference to FIG. 3, but as shown in FIG. 3A, the first fixed gear 111a is moved upward. The first switching gear 112a and the first rotary gear 113a will be described with reference to a state in which they are arranged in a line. At this time, the first connecting arm 114a and the first reciprocating arm 115a are in parallel with each other.

As shown in b and c of FIG. 3, when the first reciprocating shaft 115aa formed on the other side of the first reciprocating arm 115a moves from left to right, the first rotary gear 113a is counterclockwise. And the first shift gear 112a engaged with the first rotary gear 113a rotates in a clockwise direction. Therefore, the first rotary gear 113a and the first switching gear 112a revolve clockwise with respect to the center of the first fixed gear 111a by the first connecting arm 114a.

At this time, the first connecting arm 114a connected to the center of the first fixed gear 111a rotates in a clockwise direction so that the first rotating shaft 114aa which is one side of the first connecting arm 114a moves clockwise. It will rotate.

That is, as the first reciprocating shaft 115aa reciprocates, the first rotary gear 113a revolves around the first fixed gear 111a and is connected to the center of the first fixed gear 111a. 114aa is rotated so that the reciprocating motion is converted into rotational motion. In addition, as the first rotary shaft 114aa rotates and the first rotary gear 113a revolves around the first fixed gear 111a, the first reciprocating shaft 115aa reciprocates and the rotary movement reciprocates. Is switched to.

On the other hand, the gear device 100 may be configured in a symmetrical form to operate the gear device 100 only by the power in one direction, not the reciprocating direction of the reciprocating motion when converting the reciprocating motion to the rotational motion.

That is, when the force acting to reciprocate the first reciprocating shaft 115aa in the gear device 100 of the present invention acts only in one direction, the force is only while the rotation of the first rotating shaft 114aa is rotated 180 degrees. Because of this action, in order for the force necessary for rotation to be applied while the first rotation axis is rotated 360 degrees, the gear device 100 described above may be provided in a symmetrical position.

In detail, as shown in FIG. 4, the gear device 100 operates the gear device 100 only with power in one direction and the second fixed gear 111b and the second switch to solve the dynamic balance. And a gear 112b, a second rotary gear 113b, a second connecting arm 114b, a second reciprocating arm 115b, and the like.

In this case, the second fixed gear 111b is provided on an axis coaxial with the central axis of the first fixed gear 111a. In addition, the second switching gear 112b, the second rotary gear 113b, the second connecting arm 114b and the second reciprocating arm 115b are disposed at various positions so that the reciprocating motion of the parallel track or the orthogonal track can be performed. The reciprocating motion can be converted into the rotary motion.

That is, in the case of the reciprocating motion of the parallel track, the first switching gear 112a, the first rotary gear 113a, and the first connecting arm 114a with the direction X-X 'of the frame 110 as the reference axis. And a second switching gear 112b, a second rotary gear 113b, a second connecting arm 114b and a second reciprocating arm 115b at positions where the first reciprocating arm 115a is rotated 180 degrees.

In addition, in the case of the reciprocating motion of the orthogonal orbit, the first switching gear 112a, the first rotary gear 113a, the first connecting arm 114a, and the first switch with the reference axis X-X 'as the reference axis. A second shift gear 112b, a second rotary gear 113b, a position at which the reciprocating arm 115a is rotated 90 degrees along the central axes of the first and second fixed gears 111a and 111b at a position where the reciprocating arm 115a is rotated 180 degrees; The second connecting arm 114b and the second reciprocating arm 115b are disposed.

In addition, although the second rotary shaft 114bb, which is one axis of the second connecting arm 114b connected to the center of the first rotary shaft 114aa and the second fixed gear 111b, is rotatable independently of each other, In order to solve the imbalance, it is preferable that the first rotation shaft 114aa and the second rotation shaft 114bb are connected to each other and rotate on the same axis.

In addition, for precise linear reciprocation of the first reciprocating shaft 115aa, the radius R1 of the first fixed gear 111a is twice the radius r1 of the first rotary gear 113a (R1 = 2r1). It is preferable. In addition, the radius R2 of the second fixed gear 111b is twice the radius r2 of the second rotary gear 113b (R2 = 2r2) for precise linear reciprocation of the second reciprocating shaft 115bb. desirable. In addition, the length L1 of the first connecting arm 114a is equal to the length l1 of the first reciprocating arm 115a, and the length L2 of the second connecting arm 114b is the second reciprocating arm 115b. It is preferable to be equal to the length l 2 of.

In addition, in order to solve the dynamic balance of the gear device 100, the radius R1 of the first fixed gear 111a, the radius R2 of the second fixed gear 111b, and the diameter of the first rotary gear 113a ( 2r1), the diameter 2r2 of the second rotary gear 113b is preferably equal to each other (R1 = R2 = 2r1 = 2r2), the length L1 of the first connecting arm 114a, and the second connecting arm 114b. It is preferable that the length L2, the length l1 of the first reciprocating arm 115a, and the length l2 of the second reciprocating arm 115b are also the same (L1 = L2 = l1 = l2).

As the size and length of the gear device 100 of the present invention is formed as described above, the first and second reciprocating shafts 115aa and 115bb are reciprocated through the central axes of the first and second fixed gears 111a and 111b. It is possible to.

Meanwhile, as shown in FIG. 5, the first reciprocating shaft 115aa and the second reciprocating shaft 115bb have radii R1 and R2 of the fixed gears 111a and 111b and radii of the rotary gears 113a and 113b. By adjusting the lengths (L1, L2) of the (r1, r2) and the connecting arms (114a, 114b) and the lengths (l1, l2) of the reciprocating arms (115a, 115b), various forms such as linear reciprocating motion as well as elliptic motion Exercise is possible. In this case, the gear device 100 can solve the dynamic balance through the mass distribution of each component member of the gear device 100.

As such, the gear device 100 may be provided with a member having different sizes, and thus, a combination of various movements may be performed by adjusting the rotational movement radius and the moving distance of the linear reciprocating motion.

On the other hand, the projections (T) provided on the outer peripheral surfaces of the fixed gear (111a, 111b), the switching gear (112a, 112b) and the rotary gear (113a, 113b) according to the present embodiment is not only triangular, trapezoidal, elliptical form but also reverse rotation It may be made in the form of a right triangle to prevent.

Second Embodiment

The bicycle 200 according to the present embodiment relates to a technique for converting a reciprocating motion into a steerable rotational motion using the gear device 201 described in the first embodiment.

Hereinafter, a bicycle 200 for converting a linear reciprocating motion into a rotational motion will be described for convenience of description.

6 is a block diagram of a bicycle 200 according to the present embodiment.

The bicycle 200 according to the present exemplary embodiment includes a pedal 210, a converter 220, a driving device 230, a frame 240, a steering device 250, and the like.

The pedal 210 is a device for transmitting power due to the straight reciprocating motion to the bicycle 200, as shown in FIG. 7 to maintain the straight reciprocating track of the pedal 210 or to support the pedal. And 210a.

In addition, as shown in FIGS. 7 to 9, the pedal 210 may be variously arranged according to a power supply direction due to a prone position and a prone position. At this time, the pedal 210 may include a transmission means 211 to transmit the power due to the linear reciprocating motion to the converter 220. The transmission means 211 can be any device capable of transmitting a linear reciprocating motion such as a chain, a belt, a bar, a wire to the converter 220, but efficiently transmitting the linear reciprocating motion. For this reason, it is preferable that the bar and the wire (wire).

The converter 220 is a device for converting the linear reciprocating motion of the pedal 210 into a rotational motion. The first and second fixed gears 221a and 221b and the first and second switching gears described in the first embodiment are described. 222a and 222b, first and second rotary gears 223a and 223b, first and second connecting arms 224a and 224b, first and second rotating shafts 224aa and 224bb, and first and second reciprocating. Arms 225a and 225b, first and second reciprocating shafts 225aa and 225bb, and the like.

Description of the configuration and operation of the converter 220 is the same as in the first embodiment and will be omitted.

In addition, the converter 220 may be configured to transmit the rotational motion of the rotation shaft (the first and second rotation shafts 224aa and 224bb rotated on the same shaft in the first embodiment) to the driving apparatus 230 more efficiently. And a center gear 226 fixed to the second rotating shafts 224aa and 224bb, and the center gear 226 is preferably provided in the form of a sprocket used for a bicycle. And, it can be variously arranged according to the power supply direction.

The driving device 230 includes a driving wheel 231 and a supply means 232 and the like.

The driving wheel 231 is a device that is rotated through the rotational movement of the converter 220, the rear wheel or the front wheel serves as the driving wheel 231 according to the power supply direction, in order to use the power effectively drive wheel ( It is preferable to include a plurality of gears (G) in the central axis of rotation of 231.

The supply means 232 is connected to the converter 220 is a device for providing the power converted by the converter 220 to the drive wheel 232 is preferably made of a chain in order to efficiently provide power.

Frame 240 is a device for supporting the pedal 210, the converter 220 and the driving device 230, it may be made of a material such as iron, aluminum, alloy to adjust the weight and strength. In addition, the frame 240 may further include a saddle 241 that supports the user and absorbs the shock generated when the bicycle 200 is driven. The saddle 241 may vary depending on the power supply direction. Can be deployed.

The steering apparatus 250 includes a handle 251, a steering wheel 252, a steering shaft 253, and the like, and is connected to the frame 240 to change the direction of the bicycle 200. The handle 251 may have various shapes such as a circle, a straight line, and a curved line according to the power supply direction, and the steering wheel 252 may be the same wheel as the driving wheel 231 according to the power supply direction.

As described above, the detailed description of the present invention has been made by way of the embodiments, but the above-described embodiments have only been described with reference to preferred examples of the present invention. The scope of the present invention will be understood by the claims and equivalent concepts described below.

1 is a perspective view of a gear device according to a first embodiment of the present invention.

2 is an exploded perspective view of a gear device according to a first embodiment of the present invention.

3 is an operating state diagram of the gear device according to the first embodiment of the present invention.

4 is a perspective view showing another form of the gear device according to the first embodiment of the present invention.

5 is a perspective view showing still another form of the gear device according to the first embodiment of the present invention.

6 is a perspective view of a bicycle according to a second embodiment of the present invention.

7 is a perspective view showing another embodiment of the bicycle according to the second embodiment of the present invention.

8 is a perspective view showing still another embodiment of the bicycle according to the second embodiment of the present invention.

9 is a side view showing still another embodiment of the bicycle according to the second embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: gear device

110: frame

111a: first fixed gear 112a: first shift gear

113a: first rotating gear 114a: first connecting arm

115a: First Round Arm

111b: second fixed gear 112b: second shift gear

113b: second rotating gear 114b: second connecting arm

115b: 2nd reciprocating arm

T: protrusion

200: bike

210: pedal 220: inverter

230: drive device 240: frame

250 steering device

Claims (11)

First fixed gear; A first shift gear rotating in engagement with the first fixed gear; A first rotary gear meshed with the first shift gear to rotate; A first connecting arm connecting a center of the first fixed gear, the first switching gear, and the first rotary gear; A first reciprocating arm having one side fixed to the first rotary gear to rotate together with the first rotary gear; Including, The other side of the first reciprocating arm reciprocates, and as the first rotary gear revolves the first fixed gear, one side of the first connecting arm connected to the center of the first fixed gear rotates. Rotational and reciprocating motion is characterized in that the switching Gear mechanism. The method of claim 1, A second fixed gear having a central axis on an axis coaxial with a central axis of the first fixed gear; A second switching gear that rotates in engagement with the second fixed gear; A second rotary gear meshed with the second switching gear to rotate; A second connecting arm connecting the second fixed gear, the second switching gear, and the second rotary gear; A second reciprocating arm fixed to the second rotary gear; Characterized in that it further comprises Gear mechanism. The method of claim 1, The radius of the first fixed gear (R1) is characterized in that twice the radius (r1) of the first rotary gear Gear mechanism. The method of claim 2, The radius R1 of the first fixed gear and the radius R2 of the second fixed gear are twice the radius r1 of the first rotary gear and the radius r2 of the second rotary gear. Gear mechanism. The method of claim 2, The radius R1 of the first fixed gear is provided to be the same as the radius R2 of the second fixed gear, The radius (r1) of the first rotary gear is characterized in that the same as that provided with the radius (r2) of the second rotary gear Gear mechanism. The method of claim 1, The length of the first connecting arm and the length of the first reciprocating arm is characterized in that the same Gear mechanism. The method of claim 2, Wherein the length of the second connecting arm and the second reciprocating arm is the same; Gear mechanism. The method of claim 2, The first connecting arm is connected to the rotation center of the first fixed gear, The second connecting arm is connected to the rotation center of the second fixed gear, The first connecting arm is disposed at a position corresponding to the position rotated 180 degrees with respect to the second connecting arm Gear mechanism. A reciprocating pedal; A converter for converting the reciprocating motion of the pedal into a rotational motion; A driving device rotated through the rotational movement of the converter; A frame supporting the pedal, the converter and the drive; And A steering device connected to the frame to change a direction; Characterized in that it comprises bicycle. 10. The method of claim 9, The converter comprises a gear device according to claim 2; Characterized in that it comprises bicycle. The method of claim 10, The converter includes a center gear for transmitting a rotational motion to the drive device; Characterized in that it further comprises bicycle.

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