KR100629615B1 - driving apparatus of chainless bicycle - Google Patents

Abstract

The present invention relates to an apparatus for driving a chainless bicycle, and includes a driving means capable of driving the bicycle forward by pedaling in a forward and reverse direction, a step climbing pedaling means, and a pedal positioning means, so that various pedaling can be implemented. .

Forward direction, reverse direction, uphill pedaling means, pedal positioning means, traveling means

Description

Driving apparatus of chainless bicycle

1A is an overall perspective view of an embodiment of the present invention,

Figure 1b is a detailed view of the front driving device of FIG.

FIG. 2 illustrates pedaling modes that may be implemented by the forward driving means, FIG.

3 is a perspective view of another embodiment illustrating a configuration capable of performing a kangaroo stroke.

Figure 4 is a perspective view of the footrest means provided in the pedal, Figure 4a is a view showing an inverted state of the footrest means, Figure 4b is a view showing a standing state of the footrest means,

5 illustrates pedaling modes that may be performed in association with a kangaroo stroke;

6 is a cross-sectional view showing in detail the components provided on the left side of the pedal shaft,

7 illustrates pedaling modes that may be implemented by a stair climbing pedaling means and a pedal relative positioning means;

8 is an exploded perspective view showing the uphill pedaling means and the pedal relative positioning means in association with the pedal shaft;

9 is a perspective view showing the storage spaces formed in the positioning disk;

10 is an exploded view of the stair climbing pedaling means and the pedal relative positioning means viewed from the inside;

FIG. 11 is a partially exploded perspective view showing the ascending pedaling means and the pedal relative positioning means of FIG. 10; FIG.

Fig. 12 is a sectional view of the step climbing pedaling means and the pedal relative positioning means.

The present invention relates to a chainless bicycle, and to a driving apparatus of a chainless bicycle capable of implementing pedaling in various modes.

Cycling is an excellent exercise. Moderate cycling is generally good for your body's health in that it increases your heart rate by supplying large amounts of blood to your leg muscles. Also, jogging doesn't always add impact to your legs.

In the following description, the same direction as the rotation direction of the front wheel of the bicycle when driving forward will be described as the forward direction and the reverse direction as the reverse direction, and the rotation direction of the various components of the bicycle will be described as the forward direction or the reverse direction.

Among the bicycles currently in use, the bicycle which can be driven forward by pedaling in the forward direction as well as in the forward direction by pedaling in the reverse direction is disclosed in US Pat. No. 5,918,894. Is not disclosed.

 An object of the present invention is to provide an apparatus for driving an autonomous bicycle having a traveling means capable of driving the bicycle forward by pedaling in the forward and reverse directions.

In addition to the above object, the present invention is to arrange the components of the traveling means capable of driving the bicycle forward by pedaling in the forward and reverse directions on the right side of the rear wheel shaft and the right side of the pedal shaft of the bicycle, the stepped pedaling means and pedal positioning By providing the components of the means to the pedal shaft left and left pedal arms of the bicycle, an object of the present invention is to provide a driving apparatus for a chainless bicycle, which enables the bicycle driver to easily perform various modes of pedaling without having to spread a lot of legs. do.

In order to achieve the above object, the apparatus for driving a chainless bicycle according to the present invention includes a pair of pre-bevel gears and a pair of pre-bevel gears that rotate in opposite directions by receiving a driving force of a pedal shaft in the case of a connecting shaft. It is provided with a forward driving means including two one-way clutches that mesh only with and transmit forward power to the rear wheel hub.

In addition to the above-described configuration, the present invention provides the components of the traveling means capable of driving the bicycle forward by pedaling in the forward and reverse directions are disposed on the right side of the rear axle shaft and the right side of the pedal shaft of the bicycle, and the stepped pedaling means and the pedal position. The components of the determining means are arranged on the left and left pedal arms of the pedal shaft of the bicycle.

Hereinafter, a bicycle according to the present invention will be described with reference to Examples.

In Fig. 1, the chainless bicycle according to the present invention selectively positions the relative position between the stepped pedaling means 100 and the pedals 2 and 3 on the left and left pedal arms 4 of the pedal shaft 6. A forward traveling means 300 having a pedal relative positioning means 200 capable of driving and capable of driving the bicycle forward by pedaling in the forward and reverse directions on the right side of the rear wheel shaft 380 and the right side of the pedal shaft of the bicycle. Is shown.

The left pedal 2 and the right pedal 3 are attached to the pedal shaft 6 via the pedal arms 4 and 5 as usual, respectively. The front wheel and the rear wheel (not shown) are fixedly externally mounted to the front wheel hub and the rear wheel hub, respectively, as in a conventional bicycle, and the rear wheel hub 385 is provided with rear wheel shafts 380 via bearings, which are shown but not indicated by reference numerals. It is circumferentially rotatable with respect to

The front driving means 300 is a pedal shaft housing 310 rotatably supporting the pedal shaft 6, the rear wheel shaft fixedly supporting the rear wheel shaft 380 together with the frame of the vehicle body not shown Both ends of the housing 390 and the rear axle housing 390 and the pedal shaft housing 310 are connected to each other to include a connecting shaft housing 360 that rotatably supports the connecting shaft 350.

The pedal housing 310 accommodates a pedal shaft bevel gear 311 fixedly circumscribed at the right end of the pedal shaft 6 and a pinion bevel gear 312 engaged with the pedal shaft bevel gear 311. .

The pinion bevel gear 312 is fixedly circumscribed at the other end of the connecting shaft 350, which has a fixed external circumference of the connecting shaft bevel gear 313 at one end.

The rear wheel shaft housing 390 is provided with a forward drive mechanism 330 for moving the rear wheels only in the forward direction.

The forward drive mechanism 330 is a pair of pre-bevel gears (331, 332) are disposed on both sides of the connecting shaft bevel gear (313) for engagement; It is fixedly inscribed to the rear wheel hub 385 and is external to the one prebevel gear 331 disposed on the rear wheel hub side of the pair of prebevel gears and meshes with the prebevel gear 331 only in the forward direction to the forward direction. A known first one-way clutch 334 rotated together with the only pre-bevel gear 331; The second known one-way direction which is circumscribed to the other one of the pair of pre-bevel gears and is rotated together with the pre-bevel gear 332 only in the forward direction by engaging the pre-bevel gear 332 in the forward direction only. Clutch 335; One end is fixedly inscribed to the rear wheel hub 385, the other end is fixedly inscribed to the second one-way clutch 335, and is rotatably external to the rear wheel shaft 380. A gear shaft 333 is rotatably inscribed in the pre-bevel gears 331 and 332.

In addition, the second one-way clutch 335 is rotatably inscribed in the pre-bevel gear 332 and rotatably coupled to the rear wheel shaft housing 390.

In the forward driving mechanism 330 configured as described above, the pair of pre-bevel gears 331 and 332 are rotated in opposite directions by the forward pedaling or the reverse pedaling. Thus, the pair of pre-bevel gears 331, Which one of the pre-bevel gears When driven in the forward direction, the forward driving force is sheared on the rear wheel hub 385, and the rear wheel fixedly circumscribed to the rear wheel hub 385 is rotated in the forward direction.

In detail, when one of the pair of pre-bevel gears 331 and 332 rotates one pre-bevel gear 331 in the forward direction, and the other pre-bevel gear 332 rotates in the reverse direction, the other One pre-bevel gear 332 is rotated in the reverse direction on the gear shaft 333 and the second one-way clutch 335 without engaging the second one-way clutch 335, one pre-bevel gear 331 is The rear wheel hub fixedly circumscribed to the first one-way clutch 334 is engaged with the first one-way clutch 334 while being rotated in the forward direction on the gear shaft 333 to drive the first one-way clutch 334 in the forward direction. 385 is driven in the forward direction, which in turn drives the rear wheels in the forward direction.

In addition, when one pre-bevel gear 331 is rotated in the reverse direction, and the other pre-bevel gear 332 is rotated in the forward direction in the pair of pre-bevel gears 331, 332, one pre-bevel gear 331 is rotated in the reverse direction on the gear shaft 333 without engaging the first one-way clutch 334, the other pre-bevel gear 332 is engaged with the second one-way clutch 335 is the second The one-way clutch 335 is driven in the forward direction, the gear shaft 333 fixedly inscribed to the second one-way clutch 335 is driven in the forward direction, and the rear wheel hub 385 fixedly circumscribed to the gear shaft 333. ) Is driven in the forward direction, which in turn drives the rear wheels.

With this configuration, the passenger of the bicycle can pedal in any of the forward and reverse directions. The pedaling modes that can be pedaled by this configuration are forward pedaling, reverse pedaling, left scissor pedaling, and right scissor pedaling (see FIG. 2).

Kangaroo stroke

In the above embodiment, only the positions of the pedal arms 4 and 5 are different and the rest of the configuration is the same.

As shown in Fig. 3, the pedal arms 4 and 5 are parallel to each other and both face upwards of the bicycle. Pedal arms 4 and 5 are fixed to pedal shaft 6, respectively.

In this embodiment, the shoe of the passenger of the bicycle should be firmly fixed to the pedals 2, 3 but should be able to be easily released. An embodiment of a configuration in which a shoe of a passenger of the bicycle is fixed to a pedal is described with reference to FIG. 4.

Figure 4 shows the footrest means provided on one pedal.

As shown in FIGS. 4A and 4B, the foot rest means 400 is rotatably mounted to a fixed shaft 401 protruding outwardly with one end fixedly mounted to the tip of the pedal arm 4 or 5. The rectangular pedal base 402 is provided as a whole.

The footrest means 400 has a size and a shape surrounding an edge surface of the four edge surfaces of the pedal base 402 except for the edge surface on which the strap 420 to be described later is disposed, and the fixed shaft ( Heavy material that is rotatably penetrated through the 401 and the other side is rotatably penetrated through the fixed shaft 403 fixedly mounted to the pedal base 402 and supported by the fixed shafts 401 and 403. A footrest base 410 of steel, for example.

Here, a spring 403a is circumscribed to the fixed shaft 403, one end of the coil spring 403a is fixed to the pedal base 402, and the other end is fixed to the footrest base 410. In this state, the strap 420 and the footrest base 410 rotate about the fixed shaft 403 in the reverse pedaling direction. In addition, the footrest base 410 and the strap 420 are inverted by limiting the rotational movement of the strap 420 and the footrest base 410 in the reverse pedaling direction on the outer sidewall of the pedal base 402. The stop jaw portion 404 restricting the movement of the other side of the footrest base 410 is formed to protrude outward so as to move in the standing posture in the posture and only the inverted posture in the standing posture.

The footrest means 400 has one end mounted on the front end of the footrest base 410 of the side through which the fixed shaft 401 is penetrated by male and female, and the footrest base 410 of the side through which the fixed shaft 403 penetrates. The other end is mounted in the direction irrespective of the pedaling movement (in this figure in the direction of the rear wheel when viewed from the standing of the footrest base 410), and the other end is mounted so that it can be disengaged quickly, and the known length is changed at the center thereof. The overall length is varied by the means 425 and includes a strap 420 made of plastic that can be adjusted according to the size of the foot on which the pedal is pressed.

Here, the tip of the foot base 410 on the side through which the fixed shaft 403 penetrates with respect to the other end of the strap 420 is quick in the rear wheel side direction when viewed from the standing of the foot base 410 in FIG. 4. For example, the means for disengaging is as follows.

The front end of the footrest base 410 of the side through which the fixed shaft 403 penetrates is opened in the rear wheel side direction when the footrest base 410 stands in FIG. 4 and the receiving part is blocked in the opposite direction ( 411 is formed, and the cylindrical portion 413 which is fixed to the leaf spring 412 which is fixed to the outer outer wall portion 411a by the fastening means to the housing portion 411 is pressed by the housing portion ( Interposed in the through-hole 414 formed in the outer wall portion of the 411 protrudes toward the inner space of the receiving portion 411, and the other end of the strap 420 corresponds to the inner space of the receiving portion 411 It has a shape and size, and the other end of the strap 420 with respect to the front end of the footrest base 410 of the side through which the fixed shaft 403 penetrated in the rear wheel side as seen from the standing of the footrest base 410. It can be easily disengaged quickly. Such a quick release means is also possible with known snap lock means in which the engagement can be released only by the outward action of the pedal.

In addition, the footrest means 400 is an outer wall of the pedal base 402 to elastically protrude to the predetermined cavity (S) formed in the pedal base 402 to partition the predetermined cavity (S). It includes a foot-base inverted holding means 430 that can be walked through the concave groove 405 formed in the foot-base 410 of the side through which the fixed shaft 403 penetrated. The foot-base inverted holding means 430 is a cylindrical portion 431, one end is fixedly coupled to one side of the cylindrical portion 431, the other end is one side wall that defines the cavity (S) One end is fixedly coupled to the other side of the first rod portion 432, the cylindrical portion 431 extending through the spring 433 interposed between the one side wall and the cylindrical portion 431 through the protrusion The second end of which protrudes through the other side wall that defines the cavity S, and the protrusion limiting piece 436 for limiting the amount of protrusion of the other end is integrally formed. Through the rod portion 434, and the spring 436 interposed in the hollow portion of the cylindrical portion 431 penetrates the cylindrical portion 431 up and down and protrudes up and down to elastically move up and down The protrusion piece 435 is included. In addition, the tip of the second rod portion 434 is cam-contacted to the edge portion that defines the concave groove 405 when switching from the standing state of the footrest base 410 to the inverted state, the second rod portion 434 has a cam surface 434a having a shape and size that allows the tip of the second rod portion 434 to be separated from the concave groove 405.

According to the foot restraint means 400, the driver of the bicycle pushes the protruding piece 435 toward the pedal arms 4 and 5 in the inverted state of the foot rest base 410, and thus the second rod part 434. When the step away from the concave groove 405, the footrest base 410 pivots around the fixed shaft 403, the footrest base 410 is the spring 403a is switched to the standing state by the force while the stop jaw portion It is possible to maintain the standing state by the help of the 404 and the spring (403a), and the driver of the self-resting foot kicks the strap 420 coupled to the footrest base 410 in the standing state of the footrest base 410. When pressurized toward the front wheel side, the footrest base 410 pivots about the fixed shaft 403 so that the footrest base 410 is converted to an inverted state while resisting the force of the spring 430A, wherein the retracted base The second rod portion 434 again presses the spring 433 Advanced by the tip portion is inserted into the concave groove 405 of the footrest base 410, so that the inverted state is maintained, so that the driver of the bicycle is to press the pedal while pressing the protruding piece 435. If so, the pedaling can be stably performed in the standing state or inverted state of the pedal base.

The driver of the bicycle can push down the pedals 2 and 3 at the same time by the help of the footrest means 400, and push up the pedals 2 and 3 at the same time. Power is transmitted to the rear wheels by forward kangaroo pedaling and reverse kangaroo pedaling. In particular, when the passenger of the bicycle presses the pedals 2 and 3 in the forward direction, the pedal shaft 6 fixed to the pedal arms 4 and 5 rotates in the forward direction. The rear wheels 10 rotate in the forward direction by the forward rotation of the pedal shaft 6. When the cyclist presses the pedals 2 and 3 in the reverse direction, the pedal shaft 6 rotates in the reverse direction. The rear wheel 10 rotates in the forward direction by the reverse rotation of the pedal shaft 6.

According to this embodiment, the bicycle driver can pedal the bicycle by modes such as forward kangaroo pedaling, reverse kangaroo pedaling, and rocking downward pedaling as shown in FIG. 5.

Stairs

1 and 6 operate together with the configuration of the forward traveling means 300 of FIG. 1 disposed on the right side of the pedal shaft 6, by simultaneously rotating the pedals 2, 3 in reverse with respect to each other, An exemplary embodiment of the stair climbing pedaling means 100 capable of advancing a bicycle when the pedal is alternately reciprocated is shown.

In this embodiment, the pedal shaft 6 extends as an adapter in the left direction so that the stair climbing pedaling means 100 is added. Parts added to the left side of the pedal shaft 6 are two sprockets 32 and 34 and parts added to a frame not shown are two idle rollers 40 and 41.

The idle rollers 40, 41 are interlocked with the two sprockets 32, 34 via one endless chain 35. These idle rollers 40 and 41 rotate on top and bottom reverse shafts 42 and 43 respectively rotated in bearings 44 and 45 provided up and down with respect to a frame (not shown). The sprocket 32 is fixedly circumscribed to the pedal shaft 6 and the sprocket 34 freely rotates about the pedal shaft 6 on the bearing 36.

In addition, the endless chain 35, at the upper portion of the sprocket 32, through the lower and upper portions of the upper idle roller 40, and through the upper and lower portions of the sprocket 34, the lower idle roller 41. It is wound around the sprockets 32 and 34 and the idle rollers 40 and 41 in order of returning to the lower part and the upper part of the sprocket 32 through the upper part and the lower part of the. In this manner, the sprocket 32 and the sprocket 34 rotate in opposite directions by the configuration.

Further, the left pedal arm 4 rotates freely with respect to the pedal shaft 6 on the bearing 47. Since the sprockets 32 and 34 which rotate in opposite directions to each other are provided in this embodiment, the pedals 2 and 3 do not rotate in the opposite direction with respect to each other, but the other pedal can be stepped on the pedals. It rotates in the opposite direction with respect to the stepped direction. The sprocket 32 is linked to the sprocket 34 via the one endless chain 35, and as shown in FIG. 6, the sprocket 34 is connected to the pedal arm 4 by the step piece 38. ), The right pedal 3 rotates in the same direction as the pedal shaft 6, while the left pedal 2 rotates in the reverse direction to the rotational direction of the pedal shaft 6.

With the help of the stair climbing pedal 100 configured as described above, the bicycle can be advanced by alternate pedal reciprocating stroke. This embodiment is most suitable for performing the step climbing exercise to strengthen the muscles of the buttocks and the tendon tendon in addition to the muscles of the other legs.

According to this embodiment, the bicycle passengers, such as parallel alternating front, parallel alternating rear, half moon alternating downward, right opposite rotation, left opposite rotation, front stair up, rear stair up, right bidirectional, left bidirectional (see Fig. 7) In these modes, you can pedal your bike.

In detail, the rear wheel, which is not shown in the forward and reverse rotation of the pedal arm 5 fixed to the pedal shaft 6 by the configuration of FIGS. 1 and 3, rotates in the forward direction, and the bicycle moves forward.

1, 3 and 6, when the left pedal arm 4 rotates in the forward direction, through the step piece 38 for driving the left pedal arm 4 and the sprocket 34 to drive each other. The left pedal arm 4 and the sprocket 34 also rotate in the forward direction. By this operation, the sprocket 32 rotates in the reverse direction through one endless chain 35 and two idle rollers 40 and 41. Since the sprocket 32 is fixed to the pedal shaft 6, the pedal shaft 6 rotates in the reverse direction together with the sprocket 32. Since the pedal arm 4 rotates about the pedal shaft 6 on the bearing 47, the pedal shaft 6 rotates opposite to the pedal arm 4. By the reverse rotation of the pedal shaft 6, the pre-bevel gear 332 is rotated in the forward direction, the rear wheel is driven in the forward direction.

When the left pedal arm 4 rotates in the reverse direction, the sprocket 34 also rotates in the reverse direction through the step piece 38. By this operation, the sprocket 32 rotates in the forward direction through the one endless chain 35 and the two idle rollers 40 and 41. Since the sprocket 32 is fixed to the pedal shaft 6, the pedal shaft 6 rotates in the forward direction. The rotation of the pedal shaft 6 in the forward direction causes the pre-bevel gear 331 to rotate in the forward direction so that the rear wheels are driven in the forward direction.

With this configuration, the bicycle passenger can use the pedals 2 and 3 to alternately advance the bicycle in the forward and reverse stroke (stepped pedaling).

Pedal relative position

It should be noted by those skilled in the art that in the above-described embodiments of the present invention, the two pedals rotate at the same speed even if the rotation directions of the two pedals are the same or vice versa. In either case, the relative starting position is important. These starting positions can be determined in various ways by fixing the pedal arms 4 and 5 to specific relative positions on the pedal shaft 6 and the sprocket 34.

Remote operation of pedal relative position and pedal relative rotation

While cycling on the road, it is desirable to be able to select the relative position of the pedals and the relative rotation of the pedals at the will of the bicyclist. This is made possible by the pedal positioning means 200 as shown in Figs. 1, 6 and 8-12. The pedal relative positioning means 200 has three steps of the step piece 38, which is selectively positioned at a predetermined position of the positioning disk 210, the clutch unit 250, and the positioning disk 210. And a shifting device 280 for conveying. 6 and 8 to 12, the positioning disk 210 is fixed to the sprocket 34 is free to rotate on the pedal shaft (6).

The clutch unit 250 is provided at the base 4a of the pedal arm 4. The pedal arm 4 is selectively freely rotated or rotated together on the pedal shaft 6 via the clutch 250. The movement of the step piece 38 along the pedal arm 4 is performed by operating the shifting device 280 attached to the pedal arm 4.

6, 8 and 9, the positioning disk 210 has three accommodating space portions in the sprocket 34 into which the step piece 38 can be inserted. The three storage space portions have the same center line as the center line of the pedal shaft 6 and differ in radial positions, and their circumferential lengths are different from each other.

Specifically, the three storage spaces are the ring-shaped first storage space 211 and the center line of the pedal shaft 6 which are located at the position with the smallest radial length with respect to the center line of the pedal shaft 6. The second storage space portion 212 is located in the largest radial length with respect to the size and shape of the step piece 38, and the first storage in the radial position A radial line located between the space portion 211 and the second storage space portion 212 and radially dividing the second storage space portion 212 radially bisected on one end line on the forward side of both ends thereof. A radial line on the other end line with about 20 degrees in the forward pedaling direction with respect to the bisector has about 35 degrees in the reverse pedaling direction with respect to the bisector radially bisecting the second storage space 212. Includes an annular third storage space 213.

In addition, the proximal end is fixed to the ring-shaped root portion 214 of the sprocket 34, and the tip ends of the balls 217, 218 toward the step piece 38 through the through-hole formed in the sprocket 34. The positioning disk 210 includes two flat springs S1 and S2 extending radially outward in the protruded state and positioned near both ends of the third storage space 213. .

The clutch portion 250 protrudes in the opposite direction in which the pedal is mounted on the base 4a of the pedal arm 4 rotatably circumscribed to the pedal shaft 6 via a bearing 47. Is provided. On the inner circumference of the base 4a, a spring built-in case 251 is circumscribed to the pedal shaft 6 and coupled to the base 4a in a spline manner. In addition, the cover piece 252 is in contact with the spring built-in case 251 and the base (4a) to prevent the detachment of the spring built-in case 251 to the fastening means to the base (4a) It is fixed by this and is rotatably external to the said pedal shaft 6 via the bearing 253.

The spring built-in case 251 is formed with a cutout portion 254 radially cut 90 degrees with respect to the central axis of the pedal shaft 6 on the opposite side to which the pedal 2 is mounted. On both sides defining the cutout 254, the springs 255 and 256 protrude to face each other to form embedded bores 257 and 258.

In addition, the protrusion 4b is provided with an accommodating portion 259 which is in circulation with the cutout portion 254. The accommodating portion 259 has a locking portion 260 and the locking portion 260 up and down. A rod protrudes through the through hole 261 formed in the protruding portion 4b so as to move the lock portion 260 in contact with the front end and the base end of the housing portion 259 for distributing the inner space and the outside. 262 is slidably housed.

In addition, in order to prevent separation of the locking portion 260 and the rod 262, the separation preventing piece 263 is formed protruding radially on a portion of the outer peripheral portion of the cover piece 252.

The locking portion 260 has a size and shape such that the proximal ends cooperate with each other to form a seat 264 that can be seated at the tip of the rod 262, and the distal ends cooperate with the pedal shaft ( 6) two separate portions 260a and 260b having a size and a shape that can be selectively inserted into one slit groove among the plurality of slit grooves A, B, C, and D formed on the outer circumference thereof. It is.

In addition, the proximal end of the rod 262 passing through the through hole 261 abuts against the pressure cam 265 fixedly circumscribed to the cam shaft 266 rotatably mounted to the protrusion 4b. The camshaft 266 is fixedly circumscribed by an L-shaped handle 267 capable of rotating the camshaft 266.

The plurality of slit-shaped grooves formed in the pedal shaft 6 are four in this embodiment. Two slit-shaped grooves A and C are disposed at both ends of the diagonal on the same line as the bisector which bisects the pedal arm 4 in the longitudinal direction, and the slit-shaped groove A disposed on the side far from the pedal. The remaining two slit-shaped grooves B and D are arranged at an angle of about 35 degrees on both sides with the center.

The configured clutch unit 250 allows the pedal arm 4 to rotate freely around the pedal shaft 6 in a state where the pressure cam 265 does not press the rod 262. In the state where the pressurizing cam 265 is not pressurized, the pedal arm 4 is rotated so that the locking portion 260 is inserted into any one of the slit grooves A to D formed around the pedal shaft 6. After aligning the tip, the pressure cam 265 is then operated to press the rod 262 so that the tip of the locking portion 260 is inserted into any one of the grooves, and the pedal arm 4 It is fixed relative to the pedal shaft 6 to allow rotational movement with the pedal shaft 6.

Accordingly, the clutch unit 250 may be positioned at the positions corresponding to the slit grooves A to D, allowing the pedal movement of various modes described below.

That is, when the step piece 38 is inserted into the first storage space 211, when the left pedal is positioned and fixed by the clutch unit 250 in the slit-shaped groove A, When the left and right pedal arms 4 and 5 form an angle of 180 degrees to each other, as shown in FIG. 2, forward and backward pedaling is possible, and the left and right pedal arms are positioned and fixed in the slit groove C. When (4, 5) is parallel to each other, as shown in Fig. 5, kangaroo pedaling by forward and backward pedaling becomes possible, and is positioned and fixed in the slit-shaped groove (B or D) when driving uphill One of the left and right pedals is upright in the downward direction, and the other pedal is inclined forward or backward by about 35 degrees with respect to the upright incline, which is not shown in FIG. In Dragon Pedaling Left or right scissor pedaling is enabled, which facilitates hill climbing.

The shift device 280 is disposed on the pedal side at the base 4a of the pedal arm 4 and is mounted to the pedal arm 4 so that the battery can be retracted and retracted in three stages along the pedal arm 4.

To this end, the shifting device 280 moves the carrier 290 and the carrier 290 into three stages, which are moved together with the step piece 38 selectively positioned at a predetermined position of the positioning means 210. A control unit 270 for transferring.

The shift device 280 is a portion 4c of the pedal arm near the base 4a of the pedal arm 4 to slidably transport the carrier 290 of the shift device 280 in three stages. A rail piece 80 which protrudes toward the positioning disk 210 and extends in the longitudinal direction of the pedal arm 4 and has long concave grooves 81 formed in the upper and bottom surfaces thereof along the longitudinal direction thereof; In order to limit the upper and lower movements of the carrier 290 to the portion 4c of the pedal arm that bears the rail piece 80 and the like, and the carrier 290 is part 4c of the pedal arm 4. And a cutout 82 formed for detachably mounting to the.

In addition, the carrier 290 has a protruding piece 291 having a size and shape that can be slidably inserted into the concave groove 81 of the rail piece 80, the inner surface of both legs (292, 292). Is formed over the entire inner side surface of the inner side surface, and is formed on the front end surface of the rail piece 80 so as to face the receiving groove 84 which protrudes and presses the pressure spring 83 in the pedal side direction. 293 is formed on the inner surface of the base 294 facing the front end surface of the rail piece 80, the receiving groove 84 and the groove 293 cooperate to accommodate the pressing spring 83 in a pressurized state And a holding piece 295 for maintaining the distance between the two leg portions 292 and 292 and supporting the step piece 38 formed by protruding on the surface facing the positioning disk 210 side. Integrally formed at one end of both side portions 292, 292 on the positioning disk 210 side of both sides of the portions 292, 292. A channel shape portion 290a is included.

The carrier 290 is positioned at both sides of the leg portions 292 and 292 of the channel portion 290a to mount and detach the channel portion 290a to the rail piece 80. Both ends are secured by fastening means (not shown) at the other end of both leg portions 292 and 292 on the opposite side to the disk 210 side, and are slid within the predetermined range within the cutout 82 when engaged. The stop piece 290b arrange | positioned possibly is included.

In addition, the controller 270 is detachably mounted to one side of one leg 292 of the two leg portions 292 and 292 of the pedal arm 4 facing the controller 270. It is possible to selectively step on the two step grooves 85 and 85 formed at predetermined intervals in the longitudinal direction of the pedal arm on the upper surface. This will be described in detail as follows.

The control unit 270 is pivotally mounted to the bearing portion 296 integrally formed to protrude from the upper surface of one leg 292 of the leg portion 292, 292 of the channel-shaped portion 290a integrally formed 271, a see-saw bar 272 that is circumscribed to one end of the pivot shaft 271 and rotates together with the pivot shaft 271, and elastically moves up and down in a direction perpendicular to the axis of the pivot shaft 271. A stop rod 274 protruding from the bore 296a having one end inserted into the bore 296a formed in the bearing portion 296 via a spring 273 and the other end having a ball shape. A cutout for allowing the case 270a detachably attached to one leg 292 and the ball-shaped portion 274a formed at the other end of the stop rod 274 to protrude in a state in which it can be lifted and lowered elastically. (275) and smaller than the distance between the two step grooves (83, 85) in the case (270a) portions on both sides of the cutout (275). The through holes 276 and 276 formed at intervals, and the through holes 276 and 276 facing each other at the same interval as the gap between the two through holes 276 and 276 formed in the pedal arm 4; Two through holes 297 and 297 formed in the one leg portion 292, and stepped portions 278a and 278a are formed between one end and the other end, and the one end is provided on the pedal arm 4. A spring having the same size and shape as the step grooves 85 and 85 and the other end disposed between the step portions 278a and 278a and the case 270a so as to be stepped into the formed step grooves 85 and 85. A lift step piece 278b and 278b that is external to the 279 and protrudes through the through holes 276 and 276 of the case 270a and has a size and shape that can be caught by the seesaw bar 272 at the center portion. ), Two latch portions 278 and 278 are formed. In addition, the control unit 270 includes a handle (H) which is integrally standing at the central portion of the seesaw bar 272 to seesaw the seesaw bar 272 about the pivot axis 271. The handle H is elastically pressure-contacted with the ball-shaped portion 274a of the stop rod 274 whenever the seesaw bar 272 moves by the handle and rides on the ball-shaped portion 274a. It includes a slippery piece that can be flipped so that the bicycle passenger does not pivot the handle H so that the seesawed position is always maintained.

With this configuration, when the bicycle passenger places the steering wheel at the position of "O", the latch portion 278 proximate to the pedal shaft 6 side releases the pressing force by the seesaw arm 272 to release the spring 279. By the force, the tip is stepped on the step groove 85 on the pedal shaft 6 side, and the pressing force by the seesaw arm 272 acts on the latch portion 278 disposed far from the pedal shaft 6 side. The tip is released from the step groove 85 disposed away from the pedal shaft 6. At this time, the walking piece 38 is inserted into the first storage space 211 of the positioning disk 210. Here, if the tip of the locking portion 260 in the clutch portion 250 is inserted into the slit groove in any one of the slit grooves A to D formed in the pedal shaft 6, Fig. 2 And various pedaling as shown in FIG. 5.

Then, when the bicycle passenger places the handle at the position of "P", the latching portion 278 near the pedal shaft 6 side acts the pressing force by the seesaw arm 272, and the tip thereof is applied to the pedal shaft 6. At the same time, the carrier 290 is advanced by the pressing spring 83 along the rail piece 80 of the pedal arm 4, and at the pedal shaft 6 side. The latch portion 278 placed far away is released from the pressing force by the seesaw arm 272, and the force of the spring 279 causes the end of the latch portion to walk on the step groove 85 disposed far from the pedal shaft 6 side. Will be. At this time, the walking piece 38 is inserted into the third storage space portion 213 of the positioning disk 210. Here, if the tip of the locking portion 260 in the clutch portion 250 is not inserted into any of the slit grooves of the slit grooves A to D formed in the pedal shaft 6, Among the various pedaling as shown in FIG. 7, in particular, it facilitates the pedaling of the front stairs up and the rear stairs up.

Further, when the bicycle passenger places the handle back to the position "O", the ends of the latch portions 278 and 278 are released from the step grooves 85 and 85, and at the same time, the stop piece of the carrier 290 The carrier 290 is pushed by the pressing spring 83 along the rail piece 80 of the pedal arm 4 until 290b elastically hits the side wall of the pedal which defines the cutout 82. The advancing piece 38 is inserted into the second storage space portion 212 of the positioning disk 210. Here, the front end of the locking portion 260 in the clutch portion 250 is formed in any one of the slit grooves A to D among the slit grooves A to D formed in the pedal shaft 6. If not inserted, various pedaling as shown in FIG. 7 is possible.

Further, in the advanced state until the carrier 290 strikes the pedal side wall elastically, the bicycle passenger presses the carrier 290 or the control unit 270 toward the pedal shaft with the foot, and optionally the step piece 38 ) Can be located in any one of the three storage spaces 211, 212, 213, it is possible to perform the above-described various pedaling.

Although many limitations were made in the above description, these should not be construed as being limited to the scope of the present invention, but are merely illustrative of preferred embodiments of the present invention. Those skilled in the art will devise many other embodiments despite the scope of the present invention.

Therefore, the scope of the invention should be judged by the appended claims, which are not the examples but the legal scope.

The chainless bicycle according to the present invention is suitable for providing a wide range of exercise in order to trim the state of various upper and lateral muscles of the body, such as the user's thighs, calf, lower abdomen, without the user wide open both legs.

Claims (14)

delete The left pedal 2 and the right pedal 3 are mounted to the pedal shaft 6 via the pedal arms 4 and 5, respectively, and the front and rear wheels are fixedly externally mounted to the front wheel hub and the rear wheel hub, respectively. The rear wheel hub 385 is circumscribed so as to rotate forward and backward with respect to the rear wheel shaft 380 via bearings, and the bicycle is pedaled in the forward and reverse directions to the right and the pedal shaft right side of the rear rear wheel shaft 380. In the driving apparatus of a chainless bicycle having a known forward running means 300 that can drive the front of the vehicle, Each of the pedals (2, 3) is provided with a footrest means for fixing the shoes of the bicycle driver, The foot rest means 400 is a generally rectangular pedal base 402 rotatably mounted on a fixed shaft 401 protruding outwardly with one end fixedly mounted to the tip of the pedal arm 4 or 5, One side of the four edges of the pedal base 402 has a size and shape that surrounds the edge surface except for the edge on which the strap 420 is to be disposed, and one side thereof is rotatably penetrated through the fixed shaft 401. Heavy-duty footrest base 410, the side portion of which is rotatably penetrated by a fixed shaft 403 fixedly mounted to the pedal base 402, supported by the fixed shafts 401, 403, One end is attached to the tip of the footrest base 410 on the side through which the fixed shaft 401 penetrates, and the pedaling movement is related to the tip of the footrest base 410 on the side through which the fixed shaft 403 penetrates. A strap 420 made of a plastic material, the other end of which is quickly detachable in a non-direction and whose overall length is changed by a known length variable step 425 at the center thereof, and The fixed shaft 403 penetrates through an outer wall of the pedal base 402 which elastically protrudes from the predetermined cavity S formed in the pedal base 402 to define the predetermined cavity S. It comprises a foot base inverted holding means 430 that can be stepped into the concave groove 405 formed in the foot base 410 of the penetrated side, Here, a spring 403a, one end of which is fixed to the pedal base 402 and the other end of which is fixed to the footrest base 410, is externally connected to the fixed shaft 403, and the pedal base 402 Driving device for a chainless bicycle, characterized in that the outer side wall of the stop jaw portion 404 is formed to protrude outward. The method of claim 2, The footrest base inverted holding means (430) Cylindrical part 431, One end is fixedly coupled to one side of the cylindrical portion 431, and the other end is protruded through one side wall defining the cavity (S) between the one side wall and the cylindrical portion 431 A first rod portion 432 extending through the spring 433 interposed therebetween, One end is fixedly coupled to the other side of the cylindrical portion 431, the other end protrudes through the other side wall that defines the cavity (S), for limiting the amount of protrusion of the other end A second rod portion 434 in which the protruding limiting piece 436 is integrally formed, and Through the spring 436 interposed in the hollow portion of the cylindrical portion 431 penetrates the cylindrical portion 431 up and down protrudes up and down and includes a protruding piece 435 that can be elastically raised up and down And The tip of the second rod portion 434 is cam-contacted to the edge portion that defines the concave groove 405 when the footrest base 410 transitions from the standing state to the inverted state, and the second rod portion 434. ) Has a cam surface (434a) having a shape and size that allows the tip of the second rod portion (434) to be separated from the concave groove (405) to be retracted. The method of claim 2 or 3, The front end of the footrest base 410 of the side through which the fixed shaft 403 is penetrated is opened in the rear wheel side direction when the footrest base 410 stands up, and an accommodating part 411 which is blocked in the opposite direction is Formed, The cylindrical portion 413 which is fixed to the leaf spring 412 fixed to the outer outer wall portion 411a by the fastening means on the outer side wall portion 411a of the accommodating portion 411 is provided on the outer wall portion of the accommodating portion 411. Interposed in the formed through hole 414 and protruding toward the inner space of the housing part 411, and The other end of the strap 420 has a shape and size corresponding to the inner space of the accommodating portion (411) drive device of a chainless bike, characterized in that. The left pedal 2 and the right pedal 3 are mounted to the pedal shaft 6 via the pedal arms 4 and 5, respectively, and the front and rear wheels are fixedly externally mounted to the front wheel hub and the rear wheel hub, respectively. The rear wheel hub 385 is circumscribed so as to rotate forward and backward with respect to the rear wheel shaft 380 via bearings, and the bicycle is pedaled in the forward and reverse directions to the right and the pedal shaft right side of the rear rear wheel shaft 380. In the driving apparatus of a chainless bicycle having a known forward running means 300 that can drive the front of the vehicle, On the left side of the pedal shaft is a stair climbing pedaling means, The stair climbing pedal 100 includes two sprockets 32 and 34 circumscribed to the left of the pedal shaft 6, two idle rollers 40 and 41 rotatably mounted to the bicycle frame, and the idler. A roller 40, 41 and one endless chain 35 wound around the two sprockets 32, 34, Here, the sprocket 32 is fixedly circumscribed to the pedal shaft 6 and the sprocket 34 is free to rotate about the pedal shaft 6 on the bearing 36, The endless chain 35, at the upper portion of the sprocket 32, passes through the lower and upper portions of the upper idle roller 40, and passes through the upper and lower portions of the sprocket 34, upper and lower portions of the lower idle roller 41. A driving apparatus for a chainless bicycle, which is wound around the sprockets 32 and 34 and the idle rollers 40 and 41 in the order of returning to the lower part and the upper part of the sprocket 32 via the lower part. The method according to claim 2 or 5, On the left and left pedal arms of the pedal shaft, components of the pedal positioning means are arranged, The pedal positioning means 200 A positioning disk 210 fixedly provided at the sprocket 34 and freely rotating on the pedal shaft 6, A clutch portion 250 provided at the base 4a of the pedal arm 4 to allow the pedal arm 4 to selectively rotate freely on the pedal shaft 6 or to rotate together; Pedals in the base 4a of the pedal arm 4 for transferring the step piece 38, which is selectively positioned at a predetermined position of the positioning disk 210, along the pedal arm 4 in three stages. And a shift device 280 disposed at the side and mounted to the pedal arm 4. The method of claim 6, The positioning disk 210 has three accommodating space portions in the sprocket 34 into which the step piece 38 can be inserted, and the three accommodating space portions are formed at the center line of the pedal shaft 6. Driving device of a chainless bicycle, characterized in that having the same center line and different radial positions, the circumferential lengths thereof are different from each other. 8. The ring-shaped first storage space portion 211 and the center line of the pedal shaft 6, according to claim 7, wherein the three storage space portions are located at the position with the smallest radial length with respect to the center line of the pedal shaft 6. The second storage space portion 212 is located in the largest radial length with respect to the size and shape of the step piece 38, and the first storage in the radial position A radial line located between the space portion 211 and the second storage space portion 212, and a radial line on one end line on the forward side of both ends thereof, radially bisects the second storage space portion 212. 15 degrees to 25 degrees in the forward pedaling direction with respect to the bisector and the 15 degrees in the reverse pedaling direction with respect to the bisector radially bisecting the second storage space portion 212. Is greater than the angle not 25 degrees, 45 degrees, than the drive system of a chainless bicycle, characterized in that includes a third accommodation space portion 213 of the ring-shaped with a small angle. The method according to claim 7 or 8, The positioning disk 210 The proximal end is fixed to the ring-shaped root portion 214 of the sprocket 34 and the tip protrudes toward the stepped piece 38 through the through holes formed in the sprocket 34. Driving device of a chainless bicycle, characterized in that it comprises two flat springs (S1, S2) extending radially outward in the mounted state, respectively positioned near both ends of the third storage space (213). . The method of claim 6, The clutch portion 250 protrudes in the opposite direction in which the pedal is mounted on the base 4a of the pedal arm 4 rotatably circumscribed to the pedal shaft 6 via a bearing 47. Equipped with The inner circumferential portion of the base (4a) is a spring built-in case 251 is external to the pedal shaft 6 is coupled to the base 4a in a spline manner, In order to prevent separation of the spring built-in case 251, the cover piece 252 abuts on the inner side to the spring built-in case 251 and the base 4a to be fixed to the base 4a by fastening means. Is rotatably external to the pedal shaft 6 via the bearing 253, The spring built-in case 251 is formed with a cutout portion 254 radially cut 90 degrees with respect to the central axis of the pedal shaft 6 on the opposite side to which the pedal 2 is mounted. On both sides defining the cutout 254, the springs 255 and 256 are projected to face each other, and the built-in bores 257 and 258 are formed. The protruding portion 4b is provided with an accommodating portion 259 that passes through the cutout portion 254. The accommodating portion 259 moves the locking portion 260 and the locking portion 260 up and down. The rod 262 protrudes through the through hole 261 formed in the protruding portion 4b so as to contact the lock portion 260 with the front end and the proximal end to distribute the inner space and the outside of the accommodating portion 259. Is housed in a sliding, In order to prevent the lock part 260 and the rod 262 from being separated, the cover piece 252 has a separation preventing piece 263 is formed to protrude radially on a portion of the outer peripheral portion, The locking portion 260 has a size and shape such that the proximal ends cooperate with each other to form a seat 264 that can be seated at the tip of the rod 262, and the distal ends cooperate with the pedal shaft ( 6, there are two separate portions 260a and 260b having a size and a shape that can be selectively inserted into one slit groove among a plurality of slit grooves formed on the outer circumference of 6), and The proximal end of the rod 262 penetrating the through hole 261 abuts against the pressure cam 265 fixedly circumscribed to the cam shaft 266 rotatably mounted to the projection 4b. The camshaft (266) is a drive device for a chainless bicycle, characterized in that the handle (267) that can rotate the camshaft (266) is fixed externally. The method of claim 10, The plurality of slit-shaped grooves formed in the pedal shaft 6 is four Here, the two slit-shaped grooves A and C are disposed at both ends diagonally on the same line as the bisector which bisects the pedal arm 4 in the longitudinal direction, and The remaining two slit grooves (B, D) are a chainless bicycle, characterized in that arranged at an angle of 30 degrees to 40 degrees on both sides with respect to the slit grooves (A) disposed far from the pedal. Drive. The method of claim 6, The shifting device 280 is a carrier 290 which is moved together with the step piece 38 selectively positioned at a predetermined position of the positioning means 210 and for transferring the carrier 290 in three stages. Driving device for a chainless bicycle, characterized in that it comprises a control unit (270). The method of claim 12, A portion 4c of the pedal arm near the base 4a of the pedal arm 4 is A rail piece 80 which protrudes toward the positioning disk 210 and extends in the longitudinal direction of the pedal arm 4 and has long concave grooves 81 formed in the upper and bottom surfaces thereof along the longitudinal direction thereof; In order to limit the upper and lower limit movements of the carrier 290 to the portion 4c of the pedal arm that bears the rail piece 80 and the like, and the carrier 290 is part 4c of the pedal arm 4. And a cutout 82 formed for detachably mounting at The carrier 290 is Protruding pieces 291 having a size and a shape that can be slidably inserted into the concave grooves 81 of the rail pieces 80 are located on the inner surfaces of both legs 292 and 292 in the longitudinal direction of their inner surfaces. And a groove 293 formed on the front end surface of the rail piece 80 and facing the accommodation groove 84 that projects and presses the pressure spring 83 in the pedal side direction. It is formed on the inner surface of the base (294) facing the front end surface of the) and the receiving groove 84 and the groove 293 cooperate to accommodate the pressing spring 83 in a pressurized state, the both legs ( The holding pieces 295 holding the gaps 292 and 292 and supporting the step pieces 38 formed to protrude on the surface facing the positioning disk 210 are the amounts of the two legs 292 and 292. Channel-shaped portion 290a integrally formed at the tip of one side portion of both leg portions 292 and 292 on the positioning disk 210 side of the side portions. ) And In order to mount and detach the channel portion 290a to the rail piece 80, the opposite side of the positioning disk 210 side of both sides of the leg portions 292 and 292 of the channel portion 290a. The stop pieces 290b which are fixed at both ends of the other ends of the two legs 292 and 292 by the fastening means and are slidably disposed within the predetermined distance within the cutout portion 82 when engaged. Including, The controller 270 is Removably mounted on one side of one leg portion 292 of the two leg portions 292, 292 in the longitudinal direction of the pedal arm on the upper surface of the pedal arm (4) facing the control unit 270 Drive device for a chainless bicycle, characterized in that the step can be selectively stepped on the two step grooves (85, 85) formed at a predetermined interval. The method of claim 13, The controller 270 is A pivot shaft 271 rotatably mounted on the bearing portion 296 protruding from the upper surface of one leg 292 of the leg portions 292 and 292 of the channel shape portion 290a and integrally formed; Seesaw bar 272, which is external to one end of the pivot shaft 271 and rotates together with the pivot shaft 271, One end is inserted through the spring 273 in the bore 296a formed in the bearing portion 296 so as to elastically move up and down in the direction perpendicular to the axis of the pivot shaft 271 and the other end is viewed. A stop rod 274 having a shape and protruding from the bore 296a; A case 270a detachably mounted to the one leg 292, A cutout portion 275 for protruding the ball-shaped portion 274a formed at the other end of the stop rod 274 in an elastically liftable and descendable state, and portions of the case 270a on both sides of the cutout portion 275. Through-holes 276 and 276 formed in the gap between the step grooves (85, 85) smaller than the gap, Are formed in the one leg portion 292 to face each of the through holes 276 and 276 at an interval equal to the distance between the two through holes 276 and 276 formed in the pedal arm 4. 2 through holes (297, 297), Stepped portions 278a and 278a are formed between one end and the other end, and the one end is the same as the step grooves 85 and 85 so that the step can be stepped into the step grooves 85 and 85 formed in the pedal arm 4. It has a size and shape and the other end is external to the spring 279 disposed between the step portions 278a and 278a and the case 270a to protrude through the through holes 276 and 276 of the case 270a. Two latch portions 278 and 278 having a center and a lift step piece 278b and 278b having a size and shape that can be caught by the seesaw bar 272 in the center; It comprises a handle (H) that is integrally standing in the central portion of the seesaw bar 272 for the seesaw movement of the seesaw bar 272 about the pivot axis 271, Here, the handle (H) is elastically pressure-contacted with the ball-shaped portion 274a of the stop bar 274 whenever the seesaw bar 272 is moved by the handle to the ball-shaped portion 274a It includes a sliding protrusion (Ha) that can ride over, so that the bicycle driver does not turn the handle (H), always maintains the position of the seesaw exercised seesaw bar drive Device.

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