JP2002178912A - Hanging type bicycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bicycle suitable for use in a low tunnel. SOLUTION: This hanging type bicycle comprises a hanging roller rotatably hung on a rail installed on the ground, a frame hung on the hanging roller for oscillating it forward and backward, a bicycle structure part mounted on a portion of the frame in front of the hanging roller to have a saddle on which a man can ride, a handle that can be gripped by hands and a turning force generating mechanism to generate a turning force by pedaling, and a driving roller mounted on a portion of the frame in the rear of the hanging roller and transmitted with the turning force from the turning force generating mechanism via a transmission mechanism for abutting it on the rail from downward.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suspended bicycle which is erected on a rail in a tunnel such as a tunnel or a waterway and is suspended by using the rail as a guide.

[0002]

2. Description of the Related Art In a dam or the like, a waterway tunnel is dug to draw water from another place when a drought occurs. In such tunnels, inspections such as water leaks must be performed regularly, but this type of tunnel
Usually, the height is as short as about 1.5 m, and the worker cannot stand and walk. For this reason, he is forced to work in a slouch, which is very painful. In addition, pulling a bogie pulled by a rope into the tunnel and working on the back of the bogie, but the ground is generally rough and unsuitable for traveling, and it is not easy to move the bogie . Also, if the tunnel is long, it is practically impossible.

[0003] The inner wall of this type of tunnel is generally hardened with concrete. In view of the above, the present invention proposes a bicycle that uses an anchor bolt or the like to suspend a rail from the concrete wall and moves using the rail as a guide, thereby facilitating inspection work and the like. Needless to say, the rail according to the present invention is not limited to being installed in a tunnel, but may be installed on an unsuitable terrain such as irregular terrain or wetland.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems, the present invention provides a suspension roller according to claim 1 which is rotatably suspended on a rail erected on the ground, and a suspension roller suspended on a suspension roller. A rotating force is generated by a frame that can be supported and swing back and forth, and a frame that is provided in front of the suspension roller and that can be seated by a person, a handle that can be gripped by hand, and a pedal that is pedaled by foot. A bicycle structure having a rotating force generating mechanism, and a drive roller provided on the frame at a position behind the hanging roller, the rotating force being transmitted from the rotating force generating mechanism via a transmission mechanism to abut against the rail from below. The present invention provides a suspended bicycle comprising:

[0005] As described above, since the worker rides on the bicycle structure in the same posture as the bicycle, the worker becomes lower than the standing posture, and the head cannot be touched even at a low ceiling such as a water tunnel. . In addition, the posture is easy, and moving is labor-saving. In this case,
Since the bicycle is relatively light only based on its own weight and the weight of the worker, it can withstand even a simple rail. In addition, since the bicycle does not travel on the ground, the ground may be unsuitable for traveling.

In the above description, since the suspension roller rolls with respect to the rail, the suspension roller has a certain amount of clearance. Even in this state, the frame swings back and forth, and the drive roller presses against the lower surface of the rail. However, if the frame according to claim 2 is pivotally supported on the suspension roller with a horizontal axis, the frame can swing back and forth,
That is, the pressing of the drive roller is reliable. Further, claim 3
Described in the above, if the suspension roller has two pinching rollers that pinch the rail from above and below, and has a space changing mechanism that allows the vertical distance between the holding rollers to be greater than the height of the rail, The suspension roller can be disengaged from the rail even in the middle. In this case, the interval changing mechanism according to claim 4 is provided in which one of the holding rollers is provided eccentrically with respect to the mounting shaft. If the shaft is rotated to change the vertical interval with the other nipping roller, the operation is quick with a simple structure. Further, according to claim 5,
The traveling direction can be changed from any point on the rail as long as the frame can be rotated horizontally with respect to the suspension roller.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view of a suspension-type bicycle according to the present invention, and FIG. 2 is a plan view of a main part. This bicycle has a suspension roller 2 that is rotatably suspended on a rail 1 installed on the ground. A frame 3 suspended from the suspension roller 2 so as to be able to swing back and forth; a bicycle structure 4 provided on the frame 3 in front of the suspension roller 2; And a drive roller 5 which comes into contact with the rail 1 from below.

The rail 1 of this embodiment is formed by a square pipe whose side is stopped by a suspension member 6 extending downward from a ceiling or the like. Accordingly, the upper and lower surfaces of the rail 1 are not obstructed by the suspension members 6, and the suspension rollers 2 and the like can pass through this portion. The shape of the rail 1 is not limited to a square pipe, and the rail 1 may be installed on the ground.

FIG. 3 is a cross-sectional view of the suspension roller 2. The suspension roller 2 is rotatably supported on the rail 1 so as to be rotatable. In this embodiment, the suspension roller 2 holds the rail 1 from above and below. FIG. 2 shows an apparatus having a plurality of nipping rollers 7 and 8. Specifically, two nipping rollers 7 and 8 are attached to a substrate 9 located on the opposite side of the suspension strut 6, and the rail 1 is nipped by the nipping rollers 7 and 8 from above and below. In this example,
The shaft 7a of the upper holding roller 7 is eccentric with the mounting shaft 10,
When the handle 11 mounted on the mounting shaft 10 is turned, the shaft 7a
Adopts an interval changing mechanism that moves up and down. If the vertical separation distance in this case is higher than the height of the rail 1, the suspension roller 2 (the pinching roller 7,
8) can be engaged and disengaged from the rail 1.

The frame 3 is made of a lightweight aluminum pipe or the like. In this embodiment, the front horizontal portion 3a extends forward from the lower end of the central vertical portion 3a, and the front upright portion 3c rises from the front end. You are. A handle 12 projects right and left from an upper end of the front standing portion 3c, and a saddle 13 and a turning force generating mechanism 15 including a pedal 14 are provided in the front horizontal portion 3a.
Is formed. Therefore, the passenger sits down on the saddle 13, grips the handle 12 with his hand, and steps on the pedal 14. In this case, since there is no member blocking the view in front of the passenger, the inspection work is performed. There is no hindrance.

Further, two left and right rear arms 3d extend from the central vertical portion 3a, and a driving roller 5 is mounted between the rear ends thereof, and a suspending rod is provided above the rear arm 3d. 16 are provided. Therefore, the suspension support rod 1
The frame 3 is suspended and supported by hooking 6 on the suspension roller 2. Specifically, a base 18 that is rotatable in a horizontal plane around a vertical axis 17 is connected to the lower end of the substrate 9 of the suspension roller 2, and the suspension rod 16 is vertically connected to the base 18 by a horizontal axis 19. It is suspended so as to be rotatable in the plane. Thus, when a person rides on the bicycle structure 4, the frame 3 is tilted forward about the horizontal axis 19 by its weight, and the drive roller 5 is pressed against the rail 1 from below (the frame 3 is rotated about the vertical axis 17). It can rotate even in the horizontal plane).
Note that even if the frame 3 is attached to the suspension roller 2 without imparting a rotating function, the frame 3 swings back and forth due to the gap between the two nipping rollers 7 and 8 and the rail 1, and the driving roller 5 Is pressed against the lower surface of the rail 1 as described above.

In this case, an L-shaped groove 20 composed of a horizontal groove and a vertical groove is formed in the suspension support rod 16 through which the horizontal shaft 19 passes, and the horizontal shaft 19 is received at the vertical groove.
The base body 18 and the suspension support rod 16 are connected together by passing the horizontal shaft 19 through them, and connecting one end or both ends to a thumbscrew 21 or the like.
In this case, the L-shaped groove 20 may be inserted into the horizontal shaft 19 and the thumb screws 21 may be lightly tightened. When the frame 3 is disengaged, the frame 3 must be lifted and held by hand, and if the thumb screws 21 are completely removed, it takes too much time and is tired. But,
In this way, work is easy and quick.

FIG. 4 is a sectional view of the torque generating mechanism 15. The torque generating mechanism 15 generates torque from its output shaft 22 when the pedal 14 is pedaled, as in a normal bicycle. This rotational force is transmitted to the drive roller 5. That is, the output shaft 22 and the drive roller 5 are connected by the cable transmission mechanism 23. As the transmission mechanism 23 in this case,
A timing belt, a V-belt, a chain, or the like which is unlikely to cause a slip or the like is preferable. An idle roller 24 for changing the direction of the transmission mechanism 23 and adjusting the tension is appropriately provided at an appropriate position on the frame 3 between the output shaft 22 and the drive roller 5.

FIG. 5 is a cross-sectional view of the drive roller 5. The drive roller 5 comprises a rolling wheel 5a which presses against the lower surface of the rail 1 as a reaction force between the weight of the bicycle structure 4 and the weight of the occupant. And flanges 5b are formed on both sides thereof,
Thus, the rail 1 is sandwiched. This is to prevent the drive roller 5 from coming off the rail 1 even if the frame 3 slightly swings right and left. Further, rubber 25 is stretched on the outer periphery of the rolling wheel 5a to make it difficult to slip on the rail 1.

By the way, the driving roller 5 has a transmission mechanism 23.
Is received by the hub structure 27 having the input pulley 26 and the like, and the hub structure 27 at this time may be the one for the driving wheel (rear wheel) of the bicycle. That is, a one-way clutch mechanism that moves forward even if the output from the rotational force generating mechanism 15 is interrupted, a speed conversion mechanism and a brake mechanism that are operated by operating a lever (not shown) attached to the handle 12 can be used as they are. . In this example, a speed change mechanism 29 that switches the speed between three stages by pushing and pulling the operation member 28 and a brake mechanism 30 that operates with a brake wire are shown (of course, whether these mechanisms are adopted or not). Is free).

Although the above is the basic configuration, it is also appropriate to provide a stand 31 that extends left and right at the lower end of the central vertical portion 3a of the frame 3 (FIG. 6). When the frame 3 is removed from the rail 1 and lowered,
In order not to fall down. Further, an auxiliary roller 33 which is urged upward by a spring 32 and hits the rail 1 from below may be provided at the upper end of the central vertical portion 3a. In addition to restricting the upward movement of the bicycle structure 4 unnecessarily, the frame 3
This is to stabilize the condition. Further, a top plate 33 for preventing a passenger's head from hitting the rail 1 at the upper end of the central vertical portion 3a, preventing raindrops, and a flashlight 3 on the handle 12 are provided.
5 or a basket 36 for storing objects.

In addition, the frame 3 may be bent at an appropriate position, and may be folded compactly.
In this case, something like a carrying string may be provided as appropriate. This type of bicycle is for convenience because it often has to be transported in the mountains and the like.

Next, a method of using the suspension type bicycle having the above configuration will be described. When a person rides on the bicycle structure 4 and pedals, the drive roller 5 rotates and the whole body moves forward. During this time, the passenger may monitor and work while looking ahead. The speed at this time depends on the speed at which the pedal 14 is pedaled. Of course, the rail 1 is not straight, but the bicycle moves following the rail 1 as long as the driving roller 5 does not come off the rail 1. When changing the traveling direction, the rider gets off the bicycle structure 4, removes the drive roller 5 from the rail 1, and removes the frame 3 by one.
The drive roller 5 may be turned again by 80 ° (the frame 3 can be rotated about a vertical axis 17 in a horizontal plane in a horizontal plane), and the drive roller 5 is pressed against the rail 1 again.

[0019]

As described above, according to the bicycle according to the present invention, since the rider rides on the bicycle structure in the same posture as the bicycle, the rider becomes lower than the standing posture and lower than the waterway tunnel. You can't use your head at the ceiling.
In addition, the posture is easy, and it is labor-saving to move. The preparation for running the bicycle in this case is quick and easy since the suspension roller is merely engaged with the rail, the frame is suspended from the rail, and the drive roller is brought into contact with the rail. Further, since the bicycle does not travel on the ground, the ground may be unsuitable for traveling.

[Brief description of the drawings]

FIG. 1 is a side view of a suspended bicycle showing an example of the present invention.

FIG. 2 is a plan view of a main part of the suspension type bicycle showing an example of the present invention.

FIG. 3 is a sectional view of a suspension roller showing an example of the present invention.

FIG. 4 is a cross-sectional view of a torque generating mechanism showing an example of the present invention.

FIG. 5 is a cross-sectional view of a driving roller showing an example of the present invention.

FIG. 6 is a plan view of a stand showing an example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rail 2 Suspension roller 3 Frame 4 Bicycle structure part 5 Driving roller 7 Nipping roller 8 Nipping roller 10 Mounting shaft 12 Handle 13 Saddle 14 Pedal 15 Rotational force generating mechanism 23 Transmission mechanism

 ──────────────────────────────────────────────────の Continued from the front page (72) Inventor Akemi Ikeda 465-1 Saidaiji Kawaguchi, Okayama City, Okayama Prefecture (72) Inventor Akira Nakata 465-1 Saidaiji Kawaguchi, Okayama City, Okayama Prefecture Nikkali Corporation ( 72) Inventor Shinobu Umeda 3-2-33 Iwanai-cho, Takefu-shi, Fukui Marginai Co., Ltd.

Claims (5)

[Claims] A suspension roller rotatably suspended on a rail erected on the ground, a frame suspended and supported by the suspension roller, and a frame in front of the suspension roller. A bicycle structure provided with a saddle that can be seated by a person, a handle that can be gripped by hand, and a torque generating mechanism that generates torque by a pedal pedaled by a foot, and a frame at a position behind the suspension roller And a driving roller to which a rotational force is transmitted from a rotational force generating mechanism via a transmission mechanism and which comes into contact with the rail from below. 2. The suspended bicycle according to claim 1, wherein the frame is pivotally supported on a suspension roller by a horizontal axis. 3. The suspension roller according to claim 1, wherein the suspension roller has two clamping rollers that sandwich the rail from above and below, and has an interval changing mechanism that allows the vertical interval between the clamping rollers to be greater than the height of the rail. Suspended bicycle. 4. An interval changing mechanism, wherein one of the nipping rollers is provided eccentrically with respect to the mounting shaft, and rotating the mounting shaft changes the up-down distance from the other nipping roller. Suspension bicycle. 5. The suspended bicycle according to claim 1, wherein the frame is rotatable horizontally with respect to the suspension roller.