JP4471138B2 - Suspension bicycle - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a suspension-type bicycle that is constructed by suspending a rail in a tunnel such as a tunnel or a waterway and suspending and moving the rail as a guide.
[0002]
[Prior art and its problems]
In dams, water tunnels are dug to draw water from other places when droughts occur. In such tunnels, water leaks and the like must be regularly inspected, but this type of tunnel is usually as short as about 1.5 m, and an operator cannot stand and walk. For this reason, it is forced to bend forward and it is very painful. In addition, a cart pulled by a rope is pulled into the tunnel, and the work is done on its back on this cart, but the ground is generally rough and not suitable for traveling, and it is not easy to move the cart. . In addition, when the tunnel becomes long, it is substantially impossible.
[0003]
By the way, the inner wall of this type of tunnel is generally hardened with concrete. Therefore, the present invention proposes a bicycle in which a rail is suspended from the concrete wall with an anchor bolt or the like and moves using the rail as a guide, thereby facilitating inspection work and the like. Of course, the rail according to the present invention is not limited to being built in the tunnel, but may be built on an unsuitable traveling place such as rough terrain or wetland.
[0004]
[Means for Solving the Problems]
Under the above-described problems, the present invention provides a suspension roller suspended from a rail laid on the ground so as to be able to roll, and a swing roller supported by the suspension roller and capable of swinging back and forth. Bicycle having a frame, a saddle that can be seated by a person, a handle that can be gripped by a hand, and a rotational force generating mechanism that generates a rotational force by a pedal that is squeezed by a foot. A suspension comprising: a structure portion; and a driving roller provided on a frame at a rear portion of the suspension roller, wherein the rotational force is transmitted from the rotational force generation mechanism via the transmission mechanism and comes into contact with the rail from below. Provide a bicycle.
[0005]
As described above, since the worker rides on the bicycle structure portion in the same posture as the bicycle, it is lower than the standing posture, and the head is not caught even at a low ceiling portion like a waterway tunnel. In addition, it is easy to move and labor-saving. In this case, since the bicycle is relatively lightweight only by its own weight and the weight of the worker, even a simple rail can sufficiently withstand. Furthermore, since the bicycle does not travel on the ground, the ground may be an unsuitable ground.
[0006]
In the above, since the suspension roller rolls with respect to the rail, it has a certain gap, and even in this state, the frame swings back and forth and the drive roller presses against the lower surface of the rail. If the frame according to claim 2 is pivotally supported on the suspension roller by a horizontal shaft, the forward and backward swinging, that is, the pressing of the driving roller is ensured. Furthermore, the suspension roller according to claim 3 has two sandwiching rollers for sandwiching the rail from above and below, and has an interval changing mechanism that allows the interval between the sandwiching rollers to be larger than the rail height. If there is, the suspension roller can be engaged with and disengaged from the rail even in the middle of the rail. In this, the gap changing mechanism according to claim 4 is provided with one clamping roller being eccentric with respect to the mounting shaft. If the vertical distance from the other holding roller is changed by rotating the mounting shaft, the operation is quick with a simple structure. Further, if the frame can be horizontally rotated with respect to the suspension roller, the traveling direction can be changed from any position on the rail.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a suspended bicycle according to the present invention, and FIG. 2 is a plan view of an essential part. The suspended roller 2 is suspended from a rail 1 installed on the ground so as to be able to roll. A frame 3 that is swingably supported by the suspending roller 2 in the front-rear direction, a bicycle structure 4 that is provided on the frame 3 in the front part of the suspending roller 2, and a frame 3 in the rear part of the suspending roller 2 And a driving roller 5 that is in contact with the rail 1 from below.
[0008]
The rail 1 of this example is formed by a square pipe that is suspended by a suspension support member 6 extending downward from a ceiling or the like and whose side surfaces are fixed. Therefore, the upper and lower surfaces of the rail 1 are not obstructed by the suspension support member 6, and the suspension roller 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 constructed on the ground.
[0009]
FIG. 3 is a cross-sectional view of the suspension roller 2. The suspension roller 2 is supported by the rail 1 so as to be able to roll. In this example, two suspensions are used to sandwich the rail 1 from above and below. A roller having rollers 7 and 8 is shown. Specifically, two sandwiching rollers 7 and 8 are attached to a substrate 9 located on the opposite side of the suspension support member 6, and the rail 1 is sandwiched from above and below by the sandwiching rollers 7 and 8. In this example, an interval changing mechanism is employed in which the shaft 7a moves up and down when the shaft 7a of the upper clamping roller 7 is eccentric from the mounting shaft 10 and the handle 11 attached to the mounting shaft 10 is turned. If the vertical separation distance in this case is set higher than the height of the rail 1, the suspension roller 2 (the sandwiching rollers 7 and 8) can be engaged with and disengaged from the rail 1 even in the middle of the rail 1.
[0010]
The frame 3 is made of a lightweight aluminum pipe or the like. In this example, the front horizontal portion 3a extends forward from the lower end of the central vertical portion 3a, and the front standing portion 3c stands from the front end. Yes. A handle 12 projects from the upper end of the front standing portion 3c to the left and right, and a rotational force generating mechanism 15 including a saddle 13 and a pedal 14 is provided on the front horizontal portion 3a. Is forming. Therefore, the passenger sits down on the saddle 13 and grasps the handle 12 with his hand and strokes the pedal 14, but in this case, there is no member blocking the view in front of the passenger. There is no hindrance.
[0011]
Further, the left and right rear arms 3d extend rearward from the central vertical portion 3a, the drive roller 5 is attached between the rear ends, and a suspension support rod 16 is provided above the rear arm 3d. It has been. Therefore, the frame 3 is suspended by hooking the suspension support rod 16 on the suspension roller 2. Specifically, a base body 18 that can rotate in a horizontal plane around the vertical shaft 17 is connected to the lower end of the substrate 9 of the suspension roller 2, and the suspension support 16 is vertically connected to the base body 18 by a horizontal shaft 19. It is suspended so that it can rotate in the plane. Thus, when a person rides on the bicycle structure 4, the frame 3 tilts forward about the horizontal axis 19 according to its weight, and the driving roller 5 is pressed against the rail 1 from below (the frame 3 is centered on the vertical axis 17). It can also be rotated in a horizontal plane). Even if the frame 3 is attached to the suspension roller 2 without providing a rotation function, the frame 3 swings back and forth due to the gap between the two sandwiching rollers 7 and 8 and the rail 1, and the drive roller 5. Is pressed against the lower surface of the rail 1 as described above.
[0012]
By the way, in this case, an L-shaped groove 20 composed of a horizontal groove and a vertical groove is formed on the suspension support 16 through which the horizontal shaft 19 passes, and the horizontal shaft 19 is received by the portion of the vertical groove. The base body 18 and the suspension support 16 are connected to each other by passing the horizontal shaft 19 together and tightening one or both ends with a thumbscrew 21 or the like. In this way, the L-shaped groove 20 is connected to the horizontal shaft 19. And the thumbscrew 21 or the like 21 may be lightly tightened. When the frame 3 is engaged and disengaged, the frame 3 must be lifted and supported by the hand. If the thumbscrews 21 are completely removed, it takes too much time and is tired. However, this makes the work easier and quicker.
[0013]
FIG. 4 is a cross-sectional view of the rotational force generating mechanism 15. The rotational force generating mechanism 15 generates rotational force from its output shaft 22 when the pedal 14 is stroked, as in a normal bicycle. Is transmitted to the drive roller 5. That is, the output shaft 22 and the driving roller 5 are connected by the transmission mechanism 23 of the rope body. As the transmission mechanism 23 in this case, a timing belt, a V-belt, a chain, or the like that hardly causes a slip or the like is preferable. Further, an idle roller 24 for changing the direction of the transmission mechanism 23 and adjusting the tension is appropriately provided at an appropriate position of the frame 3 between the output shaft 22 and the drive roller 5.
[0014]
FIG. 5 is a cross-sectional view of the drive roller 5. The drive roller 5 is composed of a rolling wheel 5 a that presses against the lower surface of the rail 1 using the weight of the bicycle structure 4 and the weight of the passenger as a reaction force. Flange 5b is formed on both sides so that the rail 1 is sandwiched between them. This is to prevent the driving roller 5 from coming off the rail 1 even if the frame 3 is slightly swung from side to side. Further, a rubber 25 is stretched around the outer periphery of the wheel 5a to make it difficult to slip with respect to the rail 1.
[0015]
By the way, the driving roller 5 receives the driving force of the transmission mechanism 23 by the hub structure 27 having the input pulley 26 and the like, and the hub structure 27 at this time is the same as that of the driving wheel (rear wheel) of the bicycle. Adopt it. That is, a one-way clutch mechanism that moves forward even when output from the torque generating mechanism 15 is interrupted, a speed conversion mechanism that operates by operating a lever (not shown) attached to the handle 12, a brake mechanism, and the like can be used as they are. . In this example, a mechanism having a speed transmission mechanism 29 that switches the speed to three steps by pushing and pulling the operating member 28 and a brake mechanism 30 that operates by a brake wire is shown (of course, whether or not these mechanisms are adopted). Is free).
[0016]
The above is the basic configuration, but in addition to this, it is suitable to provide a stand 31 projecting left and right at the lower end of the central vertical portion 3a of the frame 3 (FIG. 6). This is to prevent the frame 3 from falling when the frame 3 is removed from the rail 1 and lowered. Further, an auxiliary roller 33 that 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. This is to restrict the upward movement of the bicycle structure 4 and to stabilize the frame 3. Further, a top plate 34 for preventing the passenger's head from hitting the rail 1 at the upper end of the central vertical portion 3a, preventing raindrops, a flashlight 35 for attaching the handle 12, and a bag 36 for inserting objects. May be provided.
[0017]
In addition, the frame 3 may be refracted at an appropriate position and folded in a compact manner. In this case, a strap or the like may be appropriately attached. This type of bicycle is used for convenience because it often has to be transported in the mountains.
[0018]
Next, a method of using the suspension type bicycle having the above-described configuration will be described. Since a person rides on the bicycle structure portion 4 and pedals the pedal 14, the driving roller 5 rotates and the whole moves forward. The person may watch and work while looking forward. The speed at this time depends on the speed of pedaling. Of course, the rail 1 is not straight, but the bicycle moves following the rail 1 as long as the drive roller 5 does not come off the rail 1. When changing the traveling direction, the passenger gets off the bicycle structure 4, removes the driving roller 5 from the rail 1, and rotates the frame 3 by 180 ° (the frame 3 can be rotated in the horizontal plane around the vertical axis 17. This is possible), and the drive roller 5 may be pressed against the rail 1 again.
[0019]
【The invention's effect】
As described above, according to the bicycle according to the present invention, the rider rides on the bicycle structure portion in the same posture as the bicycle, so that the rider is lower than the standing posture, and the head is also at a low ceiling such as a waterway tunnel. Can not be used. In addition, it is easy to move and labor-saving. In this case, the preparation for traveling the bicycle is fast and easy because the suspension roller is engaged with the rail, the frame is suspended on 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 an unsuitable ground.
[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 an essential part of a suspended 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 sectional view of a rotational force generating mechanism showing an example of the present invention.
FIG. 5 is a 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 Clamping roller 8 Clamping roller 10 Mounting shaft 12 Handle 13 Saddle 14 Pedal 15 Rotation force generation mechanism 23 Transmission mechanism

Claims (5)

  A suspension roller that can be rolled on a rail laid on the ground, a frame that is suspended by the suspension roller and that can swing back and forth, and a frame that is in front of the suspension roller. A bicycle structure having a saddle that can be seated, a handle that can be gripped by a hand, and a rotational force generating mechanism that generates rotational force by a pedal pedaled by a foot, and a frame provided behind a suspension roller and rotated. A suspension type bicycle comprising: a driving roller which receives a rotational force from a force generation mechanism via a transmission mechanism and abuts against a rail from below.   The suspended bicycle according to claim 1, wherein the frame is pivotally supported by a suspension roller on a horizontal axis.   The suspension type bicycle according to claim 1 or 2, wherein the suspension roller has two sandwiching rollers for sandwiching the rail from above and below, and has an interval changing mechanism that allows the interval between the sandwiching rollers to be larger than the height of the rail.   4. The suspension type bicycle according to claim 3, wherein the interval changing mechanism is such that one clamping roller is provided eccentrically with respect to the mounting shaft, and the vertical spacing with the other clamping roller is changed by rotating the mounting shaft. .   The suspended bicycle according to any one of claims 1 to 4, wherein the frame is horizontally rotatable with respect to the suspension roller.

Images