JP7231577B2 - bicycle - Google Patents

Description

The present invention relates to a mountain-type bicycle capable of traveling on rough roads.

2. Description of the Related Art Conventionally, there has been known an electric vehicle that is equipped with an electric motor and a battery, and that can run with a small pedaling force by increasing the pedaling force applied to a pedal under the driving action of the electric motor. For example, the electric bicycle of Patent Document 1 is a mountain bike type that can run on rough roads such as unpaved roads, and has left and right rear frames that are provided to swing freely with respect to the main frame and that support the rear wheels in a rotatable manner. The rear frame is provided with a rear suspension that acts as a shock absorber for absorbing shock from the rear wheels. In the electric bicycle, when the rear frame swings due to the impact applied to the rear wheel when traveling on a rough road, the rear suspension preferably absorbs the impact and suppresses transmission to the main frame.

JP 2006-103474 A

It is assumed that the mountain bike type bicycle as described above will travel on rough roads and the like, and there is a demand for the driver to control the vehicle posture and the like while feeling a greater sense of unity with the vehicle.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-mentioned demands, and provides a bicycle capable of further improving the operability of the vehicle during running by easily and securely fixing the pedals at any position. intended to provide

To achieve the foregoing objectives, an aspect of the present invention comprises a head pipe (22), a main frame (24) extending rearwardly and downwardly from the head pipe (22), and a main frame (24). a seat frame (26) extending rearward from the front end fixed to the seat frame (26); a seat pipe (56) fixed to the rear end of the seat frame (26) and holding a seat (58); Rotation of a sprocket (52) which is rotatably supported at its lower end, supports a pedal (18) to which a pedaling force is applied by a driver (R), and has a chain (92) suspended between it and a rear wheel (70). A bicycle (10) comprising a pedal shaft (50) centrally located and extending in the width direction of the vehicle and rotating together with the sprocket (52) ,
having a pedal lock mechanism (20, 90) capable of locking the rotation of the pedal shaft (50) at any position;
The head pipe (22) is provided with a handle (32) connected to the end of a front fork (30) supporting the front wheel (36) and capable of steering the front wheel (36),
Grips (40) gripped by the driver (R) are provided at both ends of the steering wheel (32) in the vehicle width direction, and front wheels (36) and rear wheels (70) are actuated to brake the front wheels (36) and the rear wheels (70). A brake lever (42) and a rear brake lever (44) are provided respectively,
A lock operation operated by the driver (R) by constructing a pedal lock mechanism (20, 90) in the vicinity of the grip portion (40) on one side in the vehicle width direction of the steering wheel (32) where the rear brake lever (44) is arranged. comprising a lever (48);
The lock operation lever (48) is arranged above and in front of the rear brake lever (44) and is rotatable with respect to the handle (32). By turning toward the pedal shaft (50), the pedal lock mechanism (20, 90) regulates the rotation of the pedal shaft (50) ,
The pedal lock mechanism (90) comprises a caliper (94) capable of braking the sprocket (52) .

According to the present invention, in a bicycle (10) having a pedal (18) to which a pedaling force is applied by a driver (R), the pedal shaft (50) supported by the pedal (18) can be rotated at any position. A lockable pedal lock mechanism (20, 90, 100) is provided, and the pedal (18) can be fixed at an arbitrary position by operating the pedal lock mechanism (20, 90, 100).

Therefore, for example, when the driver (R) rides the bicycle (10) and jumps from the jump section (JS) on a course composed of unpaved roads, the pedal shaft (50) is locked at the crossing. By doing so, the pedal (18) does not idle, and the foot (F) of the driver (R) placed on the pedal (18) can be maintained at a desired position.

As a result, it is possible to preferably maintain the rider's (R) riding posture and vehicle posture during the jump, and a sense of unity with the bicycle (10) during running can be obtained, thereby further improving operability. can be enhanced.

According to the present invention, the following effects are obtained.

Specifically, a bicycle having pedals to which a pedaling force is applied by a rider is equipped with a pedal lock mechanism capable of locking the rotation of a pedal shaft on which the pedals are supported at an arbitrary position so that the bicycle can jump from a jump section while running. At this time, by locking the pedal shaft, the idling of the pedal is prevented, and the driver's foot placed on the pedal can be preferably maintained at a desired position.

As a result, by operating the pedal lock mechanism, for example, it is possible to preferably maintain the riding posture of the rider while the bicycle is jumping, thereby providing a sense of unity with the bicycle while riding. can further improve operability.

1 is a left side view of a bicycle according to an embodiment of the invention; FIG. FIG. 2 is a top plan view of the bicycle of FIG. 1; Fig. 2 is a left side view showing a state in which a rider stands on the bicycle of Fig. 1; Fig. 2 is an enlarged perspective view of a handle showing the vicinity of a rear brake lever in the bicycle of Fig. 1; FIG. 2 is an operation explanatory diagram showing a process in which the bicycle shown in FIG. 1 jumps a jump section; FIG. 11 is a right side view of a bicycle provided with a pedal lock mechanism according to a modified example; FIG. 11 is an enlarged perspective view of a handle showing the vicinity of a rear brake lever of a bicycle provided with a lock lever according to a modification;

A preferred embodiment of a bicycle according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a left side view of a bicycle 10 according to this embodiment. In the following description, the front-rear direction (directions of arrows A1 and A2), the direction of vehicle width (directions of arrows B1 and B2), and the vertical direction (directions of arrows C1 and C2) will be described according to the directions seen by the rider seated on the seat 58 of the bicycle 10. direction).

1 to 3, the bicycle 10 includes a body frame 12, a motor unit 14 provided below the body frame 12, and a motor unit detachably attached to the body frame 12. 14, and a pedal lock mechanism 20 capable of fixing the position of a pedal 18 to which the driver R (see FIG. 3) applies a pedaling force. The bicycle 10 described above is an electric bicycle capable of transmitting the driving force generated by the motor unit 14 to the rear wheel 70, and furthermore, the shock damper 68 is capable of absorbing the impact when traveling on an uneven unpaved road. It is a mountain bike type bicycle with

The vehicle body frame 12 includes a head pipe 22 provided at the front end of the vehicle, a main frame 24 extending downward from the head pipe 22 rearward (in the direction of arrow A2), and a main frame 24 extending from the head pipe 22 to the main frame 24. A seat frame 26 gently extending rearward (in the direction of arrow A2), and an intermediate frame 28 extending downward (in the direction of arrow C2) from the middle of the seat frame 26 and connected to the main frame 24. and That is, the seat frame 26 is arranged above the main frame 24 (in the direction of arrow C1).

A pair of front forks 30 extending forward and downward are steerably supported by the head pipe 22. A handle 32 is connected to the upper end of the front fork 30, and an axle 34 is connected to the lower end of the front fork 30. A front wheel 36 is rotatably supported by the support.

The handlebar 32 has a handlebar 38 extending a predetermined length in the width direction (directions of arrows B1 and B2), which is the left-right direction. , and grip portions 40 that are gripped by the driver R during driving are provided at both ends in the width direction (see FIG. 2).

Further, as shown in FIG. 2, a front brake lever 42 for braking the front wheels 36 by being operated by the driver R is provided at one widthwise end side (arrow B1 direction) of the handlebar 38. A rear brake lever 44 for braking the rear wheel 70 by being operated by the driver R is provided on the other widthwise end side (arrow B2 direction).

As shown in FIGS. 1 to 3, the front brake lever 42 and the rear brake lever 44 are provided substantially parallel to the handlebar 38 and forward and below the handlebar 38. , are rotatably supported by lever holders 46a and 46b fixed to the handlebar 38, respectively.

The front brake lever 42 and the rear brake lever 44 are connected to brake mechanisms (not shown) provided on the front wheels 36 and the rear wheels 70 via brake wires (not shown), respectively, so that the driver R can apply the front brakes. By gripping the laterally outer side of the lever 42 and/or the rear brake lever 44 and pulling it toward the handlebar 38 (in the direction of the arrow A2), the brake mechanism operates via the brake wire to operate the front wheel 36 and/or the rear wheel 70. The rotation of the is regulated and it enters a braking state.

Further, as shown in FIGS. 1 to 4, a pedal lock mechanism, which will be described later, is provided on the other widthwise end side of the handle 32 (in the direction of arrow B2) so as to be adjacent to above the rear brake lever 44 (in the direction of arrow C1). 20 is provided with a lock lever (lock operation portion) 48 .

As shown in FIGS. 1 to 3, the main frame 24 is provided so as to be at the center of the vehicle width (horizontal center), its front end is connected to the head pipe 22, and its rear lower end is connected to the motor unit 14. A pedal shaft 50 extending in the left-right direction is rotatably provided so as to be adjacent to the motor unit 14 .

The pedal shaft 50 is provided with a sprocket 52 on which a chain 92 (see FIG. 6) is suspended on one side in the width direction, which is the right side of the bicycle 10, and pedals 18 are provided on both ends in the width direction. . When the driver R puts his foot F on the pedal 18 and applies a pedaling force, the sprocket 52 rotates together with the pedal shaft 50, and the driving force is transmitted to the rear wheel 70 via the chain 92 in a predetermined direction. rotate to

The seat frame 26 has a front end connected to the head pipe 22 above the main frame 24 and a rear end connected to a seat pipe 56 that rises obliquely upward toward the rear. A seat post 60 having a seat 58 supported at its upper end is inserted through and fixed to the seat pipe 56 from above (in the direction of arrow C1).

The intermediate frame 28 is inclined rearward (in the direction of arrow A2) from the upper end connected to the seat frame 26 toward the lower end connected to the main frame 24, and the front side when viewed from its extending direction. It is formed to have a trapezoidal cross-section that widens toward the rear side (see FIG. 2).

A battery storage section 62 capable of storing the battery 16 is provided inside the intermediate frame 28 . The battery 16 is formed of, for example, a vertically elongated package, and is detachably mounted on the intermediate frame 28 . The battery 16 is electrically connectable to the motor unit 14 via a terminal (not shown), and is configured to be able to supply power to an electric motor (not shown) of the motor unit 14 .

Further, as shown in FIG. 3, the intermediate frame 28 is provided at a position inside the foot F of the bicycle 10 in the width direction when the rider R stands with the foot F on the pedal 18 of the bicycle 10. Therefore, it is possible to hold the intermediate frame 28 so as to be sandwiched between the left and right legs F (see the two-dot chain line shape in FIG. 2).

Furthermore, since the intermediate frame 28 is formed to have a trapezoidal cross-section, for example, when the intermediate frame 28 is sandwiched between the knees and calves of the leg F, it is more stable than the case where the intermediate frame 28 is simply formed to have a rectangular cross-section. It is possible to hold

Further, as shown in FIGS. 1 to 3, a pair of swing arms 64 are swingably provided via a link arm 66 at the rear end of the seat frame 26 constituting the vehicle body frame 12. A pair of reference numerals 64 are provided so as to be symmetrical in the width direction of the vehicle (directions of arrows B1 and B2). is formed in

One front end of the swing arm 64 is swingably supported by the rear end of a link arm 66, and one end of a shock damper 68 is attached to the front end of the link arm 66 extending forward (in the direction of arrow A1). parts are connected. The center of the link arm 66 in its extending direction is pivotally supported by the rear end of the seat frame 26 . The other front end of the swing arm 64 is arranged below the one front end (in the direction of arrow C2) and connected to the lower end of the main frame 24, and the other end of the shock damper 68 is connected.

On the other hand, a rear wheel 70 as a drive wheel is rotatably supported at the rear end of the swing arm 64 via an axle 72 . The shock damper 68 suppresses the swinging motion of the swing arm 64 due to the load (impact) applied from the road surface to the rear wheel 70 when traveling on a rough road such as an unpaved road, for example, and can absorb the impact. is provided.

The motor unit 14 accommodates an electric motor inside, and a chain 92 is suspended on a sprocket 52 connected to the drive shaft of the electric motor. transmission becomes possible.

As shown in FIGS. 1 to 5, the pedal lock mechanism 20 is provided so as to be able to restrict the rotation of the pedal shaft 50 when the driver R gets on the vehicle. B2 direction) and can be operated by the driver R, a locking disc 74 coaxially provided with the pedal shaft 50, and a caliper 76 fixed to the main frame 24 and sandwiching the locking disc 74. , and a wire 78 connecting said locking lever 48 and said caliper 76 .

The lock lever 48 has, for example, a predetermined length in the width direction (directions of arrows B1 and B2), and one end in the width direction, which is the center side in the vehicle width direction (direction of arrow B1), is fixed to the handlebar 38. It is rotatably supported by the holder 46b, and one end of a wire 78 is connected to one end in the width direction.

The lock lever 48 is provided substantially parallel to the rear brake lever 44 at a position above (in the direction of the arrow C1) with a predetermined distance therebetween. That is, the lock lever 48 is rotatably supported together with the rear brake lever 44 with respect to the lever holder 46b.

In addition, as shown in FIG. 4, the lock lever 48 has an operation portion 80 that is located outside in the width direction (direction of arrow B2) and is operated by the driver R. It extends so as to incline forward (in the direction of arrow A1), and has a hook portion 82 that is further bent forward (in the direction of arrow A1) at its tip in the width direction. Therefore, when the bicycle 10 shown in FIG. 2 is viewed from above, the lock lever 48 is positioned further forward (in the direction of arrow A1) with respect to the rear brake lever 44 .

Then, for example, the wire 78 is pulled by the driver R placing his/her finger on the front side (arrow A1 direction) of the operation portion 80 of the lock lever 48 and pulling it toward the handlebar 38 (front side, arrow A2 direction). be done.

Further, when the driver R operates the lock lever 48 while driving, the position of the operating portion 80 located inside in the width direction can be confirmed by touching the hook portion 82, and the operating portion 80 can be reliably operated. It becomes possible to hold and operate.

The locking disc 74 is a circular plate made of a metal material, faces the left side of the lower end of the main frame 24, and is positioned substantially parallel to the front-rear direction (directions of arrows A1 and A2). It is fixed so as to be coaxial with the shaft 50 . As a result, the lock disk 74 rotates integrally with the pedal shaft 50 .

For example, the caliper 76 is fixed to the lower end of the main frame 24 so as to protrude rearward. there is When the wire 78 is pulled by the operation of the lock lever 48, the caliper 76 moves a movable portion (not shown), and accordingly the lock disk 74 is clamped to restrict rotation. The above-described caliper 76 is not limited to a structure that operates by the pulling force of the wire 78. For example, a hydraulic caliper that can operate movable parts by hydraulic pressure and clamp the locking disc 74 may be used. good.

The bicycle 10 according to the embodiment of the present invention is basically configured as described above. will be explained. Here, a case will be described in which the above-described bicycle 10 is used, for example, in a competition in which riders compete for the best time on a course composed of uneven unpaved roads.

As shown on the right side of the paper surface of FIG. 5, such a course as described above is provided with a jump section JS formed in a mountain-like shape extending upward (in the direction of arrow C1). 18, the rear wheel 70 is rotated and the bicycle 10 is accelerated, and the first half of the jump section JS goes up the upwardly inclined uphill part, and goes over the shock damper 68 sunken downward. Taking off from the top 84 of the jump section JS by using the reaction force acting in the direction, the player jumps into the air.

When the bicycle 10 is accelerated, power is supplied from the battery 16 to the electric motor of the motor unit 14, so that the driving force generated by the electric motor is transmitted to the rear wheel 70 via the chain 92. is transmitted to

At the time of the railroad crossing in this jump section JS, the driver R, while gripping the grip portion 40, pulls the operation portion 80 of the lock lever 48 toward the near side (handle 32 side, arrow A2 direction) with his/her finger to lock the lock. The wire 78 is pulled forward and upward along the main frame 24 under the rotating action of the lever 48 , and the caliper 76 is accordingly operated to clamp the locking disc 74 . As a result, the rotation of the locking disk 74 is restricted, and accordingly, the pedal shaft 50 on which the pedal 18 is provided is restricted from rotating, resulting in a locked state.

Therefore, when taking off from the jump section JS, for example, by locking the pedal shaft 50 at a position where the left and right pedals 18 are at substantially the same height, the idling of the pedals 18 is prevented, and the driver R can press the fixed pedals 18. It is possible to apply a force downward by stepping on the foot F against.

As a result, the downward force applied to the pedal 18 can cause the shock damper 68 to sink downward with a greater force, and a large reaction force acting upward from the shock damper 68 can be obtained. As shown on the left side of the page at 5, the bicycle 10 can jump higher and farther from the top 84 of the jump section JS.

In addition, even during the jump of the bicycle 10 shown on the left side of the paper surface in FIG. Since the position of 18 is fixed, the driver R can use the foot F placed on the pedal 18 to preferably maintain the riding posture and the vehicle posture, and the jump section JS is on the forward side in the traveling direction. It is also possible to arrange the riding posture and the vehicle posture in consideration of the landing posture when landing on the course.

When the bicycle 10 lands in front of the jump section JS in the traveling direction, the driver R pushes the operating portion 80 of the lock lever 48 forward (in the direction of arrow A1) with a finger to rotate it. The wire 78 moves rearward and downward along the main frame 24, and accordingly the movable portion of the caliper 76 returns to the opposite side to the locked state, so that the clamping state of the locking disc 74 is released.

As a result, the locking disk 74 is again rotatable, and accordingly the pedal shaft 50 on which the pedals 18 are provided becomes rotatable. The driving force is transmitted to the rear wheel 70 again, and the rotation of the rear wheel 70 causes the bicycle 10 to start accelerating forward in the traveling direction.

As described above, in the present embodiment, in the bicycle 10 having the pedal shaft 50 rotatably provided at the lower end of the main frame 24, the rider R puts his foot F on the pedal shaft 50 to apply pedaling force. pedal 18 is supported, and provided with a pedal lock mechanism 20 that allows the driver R to lock the rotation of the pedal shaft 50 at an arbitrary position.

Therefore, when the bicycle 10 is running, the pedal lock mechanism 20 is operated by the rider R to restrict the rotation of the pedal shaft 50, so that the pedal 18 on which the foot F of the rider R is placed can be moved at any position. For example, when the bicycle 10 jumps from the jump section JS on a course composed of unpaved roads, the pedal shaft 50 is locked at the time of crossing the bicycle 10, so that the rider R is riding on the pedals 18. 's foot F can be maintained at a desired position.

As a result, by operating the pedal lock mechanism 20 to easily and reliably fix the pedals 18 at an arbitrary position, it is possible to favorably maintain the riding posture of the driver R and the vehicle posture during the jump. A sense of unity with the bicycle 10 during running can be obtained, and operability can be further improved.

In addition, when the bicycle 10 jumps, the shock damper 68 can be sunk with a greater force by applying force to the fixed pedal 18 with the foot F of the rider R. It is possible to jump higher and farther by using the large reaction force obtained from 68.

Further, in the pedal lock mechanism 20, by providing the lock lever 48 so as to be adjacent to the rear brake lever 44 provided at the other widthwise end of the handlebar 38, the handlebar 38 has the lock lever 48 as the rear brake lever 44. Since the lock lever 48 can be operated independently of the brake lever 44, the operability of the lock lever 48 by the driver R can be enhanced.

Furthermore, by arranging the lock lever 48 on the rear brake lever 44 side (the other side in the width direction, in the direction of the arrow B2) of the handle 32, the front brake lever 42 may not be operated by mistake when the lock lever 48 is operated. It is possible to prevent overturning caused by locking the front wheel 36 by erroneously operating the front brake lever 42 .

Furthermore, in the bicycle 10, a motor unit 14 is provided at the rear lower end of the main frame 24 to generate a driving force under power supply action, and an intermediate frame connecting the middle of the seat frame 26 and the lower end of the main frame 24. The battery 16 is housed inside 28 . Therefore, for example, in the state shown in FIG. 3 where the driver R stands with his foot F on the pedal 18, the intermediate frame 28 is arranged at a position inside the foot F in the width direction. Since the heavy battery 16 is housed in the intermediate frame 28, the intermediate frame 28 including the battery 16 and the rider R are substantially on the same straight line when the bicycle 10 is viewed from the side. As a result, the center of gravity along the longitudinal direction of the bicycle 10 can be positioned substantially at the center, and along with this, a greater sense of unity can be obtained while the bicycle 10 is running, and the operability is further enhanced. Become.

Further, the pedal lock mechanism 20 has a lock disk 74 provided on the pedal shaft 50, and when the driver R operates the lock lever 48, the caliper 76 is operated via a wire 78, thereby locking the lock disk. Since the rotation of the pedal 74 is restricted, it is possible to restrict the rotation of the pedal shaft 50 and fix the pedal 18 at an arbitrary position with a simple structure.

Further, the pedal lock mechanism 20 is not limited to the structure capable of regulating the rotation of the lock disk 74 provided on the pedal shaft 50 by operating the lock lever 48 as described above. 2, the rotation of the sprocket 52 provided coaxially with the pedal shaft 50 with the chain 92 suspended thereon may be restricted by the caliper 94, as in the pedal lock mechanism 90 shown in FIG. In this case, the caliper 94 is positioned so as not to overlap the chain 92 .

In the above-described pedal lock mechanism 90, when the driver R operates the operation portion 80 of the lock lever 48, the wire 78 is pulled forward and upward, and the movable portion of the caliper 94 operates to clamp the sprocket 52. rotation is regulated. Accordingly, the pedal shaft 50 to which the sprocket 52 is connected stops rotating and the pedal 18 is fixed. Therefore, in this pedal lock mechanism 90, by using the sprocket 52 on which the chain 92 is suspended, the structure can be simplified and the pedal 18 can be fixed at an arbitrary position at low cost.

Furthermore, the lock lever 48 that constitutes the pedal lock mechanism 20 is not limited to being provided above the rear brake lever 44 as described above. , a lock lever (lock operation portion) 102 may be provided at a position below the handlebar 38 (in the direction of arrow C2). One end of the lock lever 102 in the width direction is supported by the lever holder 46b, and the operation portion 104 on the outside in the width direction is pushed forward (in the direction of arrow A1) to rotate the caliper 76 (92). The rotation of the pedal shaft 50 can be regulated by actuation.

Then, while the driver R grips the grip portion 40 of the steering wheel 32, for example, by pushing the operation portion 104 forward (in the direction of the arrow A1) with the thumb of the left hand and rotating it, the wire 78 is moved. The caliper 76 (92) is actuated to hold the locking disk 74 and the like, thereby establishing a locked state in which the rotation of the pedal shaft 50 is restricted (see the two-dot chain line in FIG. 7). On the other hand, by pulling the operation portion 104 of the lock lever 102 toward the rear (in the direction of the arrow A2), the caliper 76 (92) releases the lock disk 74 and the like from being restricted in rotation, and the pedal shaft 50 becomes rotatable. .

Furthermore, the pedal lock mechanisms 20, 90, 100 are provided on the bindings provided on the pedals 18 to hold the toes of the driver R, so that the driver R can easily rotate the pedal shaft 50 using the foot F. A lockable configuration is also possible. By providing the bindings on the pedals 18 in this way, for example, when the bicycle 10 is to be jumped, the pedals 18 are locked by the above-described pedal lock mechanisms 20, 90, 100, and at the same time the bindings fixed in position are released. The foot F can be used to lift the pedal 18 upward. That is, by using the pedal lock mechanisms 20, 90, 100 together with the bindings, it is possible to more preferably maintain the riding posture of the rider R and the vehicle posture while the bicycle 10 is jumping.

It goes without saying that the bicycle according to the present invention is not limited to the above-described embodiment, and various configurations can be adopted without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 10... Bicycle 12... Body frame 14... Motor unit 16... Battery 18... Pedal 20, 90, 100... Pedal lock mechanism 24... Main frame 28... Intermediate frame 32... Handle 44... Rear brake levers 48, 102... Lock lever 50... Pedal shaft 52 Sprocket 68 Shock damper 74 Locking disk 76, 94 Caliper 78 Wire 80, 104 Operation unit JS Jump section R Driver

Claims (2)

A head pipe (22), a main frame (24) extending rearwardly and downwardly from the head pipe (22), and a seat extending rearwardly from a front end fixed to the main frame (24). A frame (26), a seat pipe (56) that is fixed to the rear end of the seat frame (26) and holds a seat (58), and is rotatably supported by the lower end of the main frame (24). R) supports the pedal (18) to which the pedaling force is applied , is arranged at the center of rotation of the sprocket (52) on which the chain (92) is suspended between the rear wheel (70), and extends in the vehicle width direction. and a pedal shaft (50) rotating together with the sprocket (52) ,
having a pedal lock mechanism (20, 90) capable of locking the rotation of the pedal shaft (50) at any position;
The head pipe (22) is provided with a handle (32) connected to the end of a front fork (30) supporting a front wheel (36) and capable of steering the front wheel (36),
Both ends of the handle (32) in the vehicle width direction are provided with grip portions (40) to be gripped by the driver (R), and brakes are provided for braking the front wheels (36) and the rear wheels (70). actuated front brake levers (42) and rear brake levers (44) are provided respectively;
The pedal lock mechanism (20, 90) is configured near a grip portion (40) on one side in the vehicle width direction of the steering wheel (32) where the rear brake lever (44) is arranged so that the driver (R) can Equipped with a lock operation lever (48) to operate,
The lock operation lever (48) is arranged above and in front of the rear brake lever (44) and is rotatable with respect to the handle (32). By rotating toward the (32) side, the pedal lock mechanism (20, 90) restricts the rotation of the pedal shaft (50),
A bicycle (10), wherein said pedal lock mechanism (90) comprises a caliper (94) capable of braking said sprocket (52) . A head pipe (22), a main frame (24) extending rearwardly and downwardly from the head pipe (22), and a seat extending rearwardly from a front end fixed to the main frame (24). A frame (26), a seat pipe (56) that is fixed to the rear end of the seat frame (26) and holds a seat (58), and is rotatably supported by the lower end of the main frame (24). R) supports the pedal (18) to which the pedaling force is applied , is arranged at the center of rotation of the sprocket (52) on which the chain (92) is suspended between the rear wheel (70), and extends in the vehicle width direction. and a pedal shaft (50) rotating together with the sprocket (52) ,
having a pedal lock mechanism (100) capable of locking the rotation of the pedal shaft (50) at any position;
The head pipe (22) is provided with a handle (32) connected to the end of a front fork (30) supporting a front wheel (36) and capable of steering the front wheel (36),
Both ends of the handle (32) in the vehicle width direction are provided with grip portions (40) to be gripped by the driver (R), and brakes are provided for braking the front wheels (36) and the rear wheels (70). actuated front brake levers (42) and rear brake levers (44) are provided respectively;
The pedal lock mechanism (100) is configured near a grip portion (40) on one side in the vehicle width direction of the steering wheel (32) where the rear brake lever (44) is arranged, and is operated by the driver (R). A lock operation lever (102) is provided,
The lock operation lever (102) is arranged below the handle (32) and rotatable with respect to the handle (32) , and rotates the lock operation lever (102) forward. By allowing the pedal lock mechanism (100) to regulate the rotation of the pedal shaft (50) ,
A bicycle (10), wherein said pedal lock mechanism (100) comprises a caliper (94) capable of braking said sprocket (52) .

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