JP2000168648A - Bicycle auxiliary wheel free to lift off and to ground - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety driving by making an auxiliary wheel free to lift off and ground, extending a distance between the left and right auxiliary wheels at the time of grounding and contracting it to the minimum at the time of revolving and pulling it up. SOLUTION: In case of revolving and pulling a grounded auxiliary wheel 6 up, a wire 13 pulls up a hooking apparatus, a hooked apparatus and a wire 8, an auxiliary wheel support 3 starts to be revolved and pulled up, the hooked apparatus further rises and pushes out an unfixing lever 9, the wire 8 gets on the lever returned to its starting point by a spring and does not drop, and the auxiliary wheel 6 is fixed in a stored state. When the lever 18 is released, the hooking apparatus and the lever 18 return to their starting points by a pressing spring installed on the hooking apparatus, but the auxiliary wheel 6 comes to be in the stored state. In the case of grounding the auxiliary wheel 6, the unfixing lever 9 is pressed and it turns around a shaft 11 as its center, its head end goes out of a fixing device 12, the hooked apparatus is unfixed, it revolves and drops by gravity of the auxiliary wheel, etc., and work of a pulling spring 5, enlarges an interval between the auxiliary wheels and grounds.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is directed to a bicycle which does not fall down, and relates to an improvement in the function of a bicycle in which the auxiliary wheels can be freely taken off and landed by the auxiliary wheels which can be freely taken off and landing, not only during running while stopped. Things.

[0002]

2. Description of the Related Art Conventionally, there has been an invention of an auxiliary wheel configured to be capable of coming into contact with and detaching from the ground in a motorcycle, but this is a technique different from that of a bicycle in which a pedal rotates. Further, the bicycle has only a child bicycle auxiliary wheel fixed to the rear wheel shaft, and there is no auxiliary wheel that can be freely taken off and landing.

[0003]

The only way to stop a bicycle while traveling is to get on one leg or get off. It is a well-known fact that cyclists do not make the necessary temporary stops because they are troublesome and there are many other people who drive dangerously. In addition, since the handle of the bicycle falls down when the speed is extremely reduced, it is not possible to run slowly and drive carefully in a narrow place or a dangerous place like a four-wheeled car.
In order to solve these problems, it is necessary to make the auxiliary wheels free to take off and land while riding, so as to eliminate the feeling of temporary stoppage and to allow slow driving. However, bicycles need to take off and land so that they do not hinder the rotation of the pedals and feet.Normally, there is no power, so use manual, etc.Because it is more unstable than motorcycles, release both hands from the handle as much as possible It is required to operate without releasing both feet from the pedal. The present invention has been conceived to solve such a problem.

[0004]

[Means for Solving the Problems] As described in claim 12345.

[0005]

The operation of each embodiment will be described.

[0006]

[Embodiment 1] An embodiment of the present invention will be described mainly with reference to FIG. 1 and supplementarily with each enlarged view of FIG. 234567. (A) Horizontal shaft 1 (in addition to FIG. 1, enlarged views 2 to 3; the same applies hereinafter), bearing 2 (FIGS. 2 and 4), auxiliary wheel support 3, push plate 4
(FIG. 4), an auxiliary wheel mandrel 7 (FIG. 2), and an auxiliary wheel 6 are provided, and the auxiliary wheel support 3 is a mechanism for rotating and pulling up in the forward direction of the vehicle body. 6M is provided. The upper end of the bearing 2 is mounted on the lower end between the wheels of the bicycle body. In this case, it is also possible to provide a mounting device and make the bearing 2, the storage case 6M, and the like a removable mechanism. As shown in FIG. 4, a portion of the bearing 2 in contact with the auxiliary wheel support 3 is formed as a slope, and a portion of the slope is provided with a vertical surface or a slope portion 2M close to the vertical surface (FIG. 4). This 2M protrudes from the slope portion, and is used to minimize the distance between the left and right auxiliary wheels when the auxiliary wheel is pulled up and down. When the rotation of the head of the auxiliary wheel support 3 is stopped, The device also serves as a tool (Fig. 4). If an elastic body such as a push spring or a leaf spring is provided between the vertical surface or the slope 2M near the vertical surface and the side surface of the auxiliary wheel support 3, a shock absorber for the auxiliary wheel is provided. Since the auxiliary wheel support 3 rotates about the horizontal shaft 1 while contacting the inclined surface of the bearing 2 and the vertical surface or a slope 2M close to the vertical surface, the shaft hole of the auxiliary wheel support 3 Enlarge the shaft hole as shown at 3M in FIG. 3 to fit. As shown in FIG. 4, a portion where the auxiliary wheel support 3 is sandwiched between the bearing 2 and the pressing plate 4 is a prism. The push plate 4 sandwiches the auxiliary wheel support 3 between the bearing 2 and prevents the wobble of the auxiliary wheel support 3 at the time of landing on the auxiliary wheel and the auxiliary support 3 between the support 2 and the 2M surface of the bearing 2 at the time of turning up and retracting. The auxiliary wheel 6 that opens diagonally outward from the lower side when pulling up with the wheel support 3 interposed is set up nearly vertically, and the distance between the left and right auxiliary wheels is reduced to a minimum (FIG. 5). (B) One end of the extension spring 5 is fixed to the bearing 2 and the other end is fixed to the auxiliary wheel support 3, and the tension acts upward and downward with the middle as a boundary. The pulling spring 5 is also used so that the pulling tension is weakened and the fall is assured.
Adjust according to the fixed position and the strength of the tension. (C) A lever device (FIGS. 6 and 7) is provided on the handle. The lever device comprises an auxiliary wheel lever 18 and a fixing device 12, and the fixing device is provided with an unlocking lever 9. Lever 1
8 and the hanging device 15 (FIG. 6) are connected to the wire 13 (FIG. 6,
Connect with 7). One end of the wire 8 (FIG. 2) is divided into two and fixed to the left and right auxiliary wheel posts 3, and the other end is fixed to the hooking device 14 (FIG. 6) in the fixing device 12. There are various other methods for the lever device, and this embodiment is merely an example. Operation of the First Embodiment (a) When the auxiliary wheel 6 that has landed is turned up, the lever 13 is pulled up, and the wire 13 pulls up the hooking device 15, the hooking device 14, and the wire 8, and the auxiliary wheel support 3 turns. When the hooking device 14 starts to be pulled up, the hooking device 14 goes up further and pushes out the unlocking lever 9 and comes out there, and the wire 8 does not fall on the lever 9 returned by the spring, and the auxiliary wheel 6 is retracted. It is fixed in the state where it was done. When the lever 18 is released, the hanging device 15 and the lever 18 return to the original position by the pressing spring 16 attached to the hanging device 15 (FIG.
Is the state as stored. FIG.
Is fixed above the lever 9, and only the hanging device 15 returns to its original state. (B) When the auxiliary wheel 6 is to be landed, when the fixing release lever 9 (FIG. 6) is pressed, the lever 9 rotates around the shaft 11 and its tip comes out of the fixing device 12 to release the fixing of the hanging device 14. The auxiliary wheel 6 is pivotally dropped by the gravity of the auxiliary wheel 6 or the like and the action of the pulling spring 5, and expands and lands between the left and right auxiliary wheels by the slope portion of the bearing 2.

[0007]

[Embodiment 2] Embodiment 2 of the present invention will be described with respect to differences from Embodiment 1. In the bearing 2 according to the second embodiment, all the surfaces of the bearings 3 that come into contact with the auxiliary wheel columns 3 form slopes (FIG. 8).
In order to prevent excessive rotation of the rear support of the auxiliary wheel support 3, an instrument 2N is provided to hit the bearing 2. If a resilient body such as a pressing spring is provided on the contact surface of the contact device 2N, it becomes a shock absorber. Auxiliary wheel support 3
The enlargement value of the shaft hole of is smaller than that of the shaft hole of the first embodiment (3M in FIG. 3). The width between the left and right auxiliary wheels from when the auxiliary wheels 6 are turned up to the storage position is larger than in the case of the first embodiment. Depending on the size of the auxiliary wheels 6 and the width between the left and right when landing, etc. The installation location is limited by the relationship. The other embodiments and functions are the same as those of the first embodiment.

[0008]

[Embodiment 3] The third embodiment will be described with respect to differences from the first and second embodiments. Embodiment 1 In Embodiment 2, one horizontal shaft 1 is provided for a pair of left and right bearings 2. However, in Embodiment 3, one shaft 1 is provided for each of the left and right bearings 2, and the shafts thereof are provided. Numeral 1 is perpendicular to the slopes of the left and right bearings 2. However, the angle is not limited to vertical and horizontal angles. The shaft hole differs depending on whether the bearing 2 is the first embodiment or the second embodiment. Other embodiments and operations are the same as those of the first and second embodiments.

[0009]

[Embodiment 4] The fourth embodiment will be described with respect to differences from the first, second and third embodiments. The auxiliary wheel mandrel 7b (FIG. 10) slides in the mandrel hole of the auxiliary wheel support 3b,
The mechanism is such that it can move inward and outward. The pressing spring frame 7Y is fixed at a position near the outer end of the mandrel 7b, the auxiliary wheel 6b is mounted outside the pressing spring frame 7Y, and the pressing spring 16b is fitted to an intermediate portion. The mandrel 7b is provided with a projection 15b for stopping when moving outward, and the wire 8b is provided with a frame 3Y3 provided on the auxiliary wheel support 3b from above.
After passing through Z, it extends along the mandrel 7b and is fixed to the pressing spring frame 7Y. As shown in FIG. 11 and FIG. 10, as a device for rotating and lifting the auxiliary wheel 6b, 9b is provided on the bearing 2b, 10b11b12b13b14b is provided on the support 3b, and a fixing groove 17b (FIG. 10) is provided on the mandrel 7b. Other embodiments are the same as those of the first, second and third embodiments, except that the axial end of the auxiliary wheel lever 18 (FIG. 7) is increased or the support 3b (FIG. Frame 3 provided in 11)
Adjustments such as shortening the distance between Y and the shaft 1b are required.
The mandrel 7b can be not only horizontal but also oblique by providing a fixing device at the time of outward movement. Operation of Embodiment 4 (a) When the auxiliary wheel 6b is pivotally pulled up, the wire 8b is pulled up by pulling up the auxiliary wheel lever 18 (FIG. 7) (FIG. 1).
0, 11) Pull the auxiliary wheel 6 while contracting the pressing spring 16b.
b is drawn to the auxiliary wheel support 3b. Further, when 8b is pulled, 3b itself starts to move, and is separated from the hanging tool 9b (FIG. 11) provided on the bearing 2 by rotating and pulling up and down the fixing rod in the fixing device outer box 10b provided on 3b. The device 11b falls. This 11b has a wire 12b
The fixed rod 14b, which is connected with the shaft, slides in the outer box 13b, falls into the fixing groove 17b provided in the mandrel 7b, and fits therein.
The auxiliary wheel 6b is fixed in a state where the auxiliary wheel 6b is drawn to the auxiliary wheel support 3b. When the wire 8b is further pulled, the auxiliary wheel 6b is turned up and retracted. At the time of this storage, depending on the length of the mandrel 7b, the height of the left and right auxiliary wheels 6b may be raised and lowered. The pulling spring 5b and the pressing spring 16b are used to prevent the 3b itself from moving until the 6b is completely drawn to the column 3b. Various methods are conceivable, such as adding a gentle swell to the part immediately before the vehicle rides. (B) When landing the auxiliary wheel 6b, pressing the fixing release lever 9 (FIGS. 6 and 7) causes the auxiliary wheel 6b to pivot and fall,
Immediately before or at the same time as the landing, the fixed bar up / down device 11b is hooked by the device 9.
The auxiliary wheel 6b is pushed up by FIG. 11b (FIG. 11) to be released from the fixed state, and the auxiliary wheel 6b is instantly jumped outward and lands by the pressing spring 16b, so that the space between the left and right auxiliary wheels 6b is greatly enlarged.

[0010]

[Fifth Embodiment] In the fifth embodiment, a bearing is provided mainly at the rear wheel shaft end.
(Hereinafter referred to as the previous embodiment) will be mainly described.
As shown in FIG. 12, the left and right shaft ends 1 of the rear wheel axle of the bicycle
A is provided with a pair of left and right bearings 2, an auxiliary wheel support 3 having an auxiliary wheel 6 and an auxiliary wheel mandrel 7 mounted below, and an auxiliary wheel support shaft 1. In this embodiment, the direction in which the auxiliary wheel 6 is turned and pulled is the backward direction of the bicycle.
Is different from the previous embodiment in the opposite side (FIG. 12). In the case where the surface of the bearing 2 that contacts the auxiliary wheel support is not limited to the slope, but a small portion is a vertical surface or a slope close to the vertical surface, the small portion is also formed on the opposite side of the previous embodiment. It is also possible to make the rotation pull up the forward direction of the bicycle, in which case it is as shown in the previous embodiment. Although the installation location of the present embodiment is not a location where the rotation of the pedal is hindered, the mechanism between the left and right auxiliary wheels 6 enlarged at the time of landing is reduced at the time of turning up. It is also possible to carry out landing and rotation pulling while the space between the left and right auxiliary wheels 6 is enlarged (FIG. 15). 16) can also be installed. In any installation, if a device is installed that can fix the auxiliary wheels on the bicycle and fix either the bicycle wheels or the auxiliary wheels with the brake applied, it can also be used as a stand I can do it. The drive device is not limited to manual operation, and may be an electric motor or a foot-operated motor. One embodiment using electric motor is shown in FIGS. The switches 20d and 19d are attached to the steering wheel, and the other devices are attached to the vehicle body. When switch 20d is pressed, fixing device 7d
Due to the action of the electromagnet 15d inside, the fixing device 16d rotates and retreats, the fixing of the device 9d is released, and the auxiliary wheel lands.
When the switch 19d is pressed, the motor 1d rotates, and the wire 5
The d wire 8d is pulled up and the auxiliary wheel is turned up. At that time, the hanging device 9d comes out and is fixed on the fixing device 16d, and the electric circuit is cut off by the electric circuit cutting protrusion 10d, and the motor 1d stops. There is also a method in which a device such as a motor capable of rotating forward and reverse is operated by a motor for both landing rotation and pulling.
Other embodiments and operations are the same as in the previous embodiment.

[0011]

According to the above-mentioned apparatus, the auxiliary wheels can be freely taken off and landed not only while the vehicle is running and stopped, but also while riding, and the vehicle can be stopped and started without landing on the ground, thereby eliminating the resistance of temporary stop. This prevents the driver from driving dangerously, and also enables careful driving by slow driving. Especially in spite of the rotation of the pedal and the foot, it can be installed near the rotation of the pedal at the lower end between the wheels, and it is possible to operate without releasing the handle and the foot from the pedal, compared to motorcycles There is no danger even if it is installed on a bicycle that is even less stable, and it is a great contribution to safe driving of the bicycle.

[Brief description of the drawings]

FIG. 1 is a perspective view of claim 1.

FIG. 2 is a front view of the same.

FIG. 3 is an enlarged sectional view of the same.

FIG. 4 is an enlarged perspective view of the bearing part.

FIG. 5 is a front view when the auxiliary wheel is turned up.

FIG. 6 is an enlarged sectional view of a fixing device of the lever device.

FIG. 7 is a perspective view showing a state in which the lever device is attached to a handle.

FIG. 8 is a perspective view of claim 2.

FIG. 9 is an enlarged sectional view according to claim 3;

FIG. 10 is a front view of claim 4.

FIG. 11 is a view of the apparatus as viewed from the inside.

FIG. 12 is a perspective view showing mounting of the rear wheel according to claim 5;

FIG. 13 is a mechanism diagram of an electric drive device.

FIG. 14: Electric circuit diagram

FIG. 15 shows a device for taking off and landing between the left and right auxiliary wheels as they are enlarged.

FIG. 16 is a perspective view of the bicycle lower part of FIG.

[Explanation of symbols]

 Reference Signs List 1 shaft for auxiliary wheel support 2 bearing 3 auxiliary wheel support 4 push plate 5 extension spring 6 auxiliary wheel 7 concentric rod 8 wire 9 fixed release lever 10 same spring 11 same shaft 12 fixing device 13 wire 14 hanging device 15 hanging device DESCRIPTION OF SYMBOLS 16 Press spring 18 Auxiliary wheel lever 19 Brake lever 2M Vertical part of slope of bearing or near-vertical plane 3M Enlarged part of shaft hole of auxiliary wheel support 6M Auxiliary wheel storage case 1d Electric motor 3d Gear 4d Coaxial wire 5d winding part 7d Fixing device 8d Wire 9d Hanging device 12d Projecting portion for stopping 9d 13d 14d Head of magnetic body 15d Electromagnet 16d Fixing device 17d Push spring 18d 16d Retreat plate 19d Switch 20d Switch

Claims (5)

[Claims] (1) Between the wheels at the lower part of the bicycle body,
Each, a pair of left and right, bearing, auxiliary wheel support with auxiliary wheel mandrel and auxiliary wheel attached to the lower end, auxiliary wheel support push plate, provided
A horizontal shaft for an auxiliary wheel support that penetrates the pair of left and right bearings is provided, a drive device for the auxiliary wheel support is provided, and the auxiliary wheel support is moved from the position of the auxiliary wheel support at the time of landing at the lower end of the auxiliary wheel support. And a mechanism that can be freely turned and pulled up in the traveling direction of the vehicle body. (B) The surface of the bearing, with which the auxiliary wheel support contacts,
Form a partial slope, a small vertical surface or a slope close to the vertical surface. (C) The shaft hole of the auxiliary wheel post forms an enlarged shaft hole so that the auxiliary wheel post is adapted to rotate in contact with the inclined surface and the vertical surface of the bearing. (D) A lever device for manually driving the auxiliary wheel support is provided on a steering wheel or a vehicle body near the steering wheel. By such a mechanism, the auxiliary wheels can be freely taken off and landing, and the distance between the left and right auxiliary wheels is enlarged at the time of landing and reduced to a minimum at the time of turning up, so that there is no obstacle to the rotation of the pedal. A bicycle auxiliary wheel that can be freely taken off and landing. 2. The detachable auxiliary landing wheel according to claim 1, wherein a surface of said bearing contacting said auxiliary wheel support forms a slope. 3. The bicycle auxiliary wheel according to claim 1, wherein said pair of left and right bearings is provided with one non-horizontal or horizontal auxiliary wheel support shaft for each of the left and right bearings. 4. The auxiliary wheel mandrel has a mechanism in which a rod hole can be moved inward and outward on an auxiliary wheel of the auxiliary wheel support, and an elastic body for outward movement is mounted on the auxiliary wheel mandrel. With such a mechanism, when the auxiliary wheel lands, the auxiliary wheel mandrel instantly moves outward by the action of the elastic body, expanding between the auxiliary wheel support and the auxiliary wheel, and further expanding between the left and right auxiliary wheels. The detachable and detachable bicycle auxiliary wheel according to claim 1, 2 or 3, wherein: 5. A pair of left and right bearings, an auxiliary wheel support provided with an auxiliary wheel mandrel and an auxiliary wheel below, and an auxiliary wheel support shaft are provided at a lower portion of the bicycle body or at the end of the bicycle wheel shaft. The driving device for the auxiliary wheel support is provided, and the auxiliary wheel support is configured to be capable of rotating and pulling up in the traveling direction of the vehicle body from the position of the auxiliary wheel support at the time of landing at the lower end of the auxiliary wheel, so that the rotation of the pedal is not hindered. In the case of installation at a location where the left and right auxiliary wheels are installed, a mechanism is used in which the distance between the left and right auxiliary wheels is enlarged at the time of landing, and is reduced at the time of turning up or the position at which the turning up is lowered. With such a mechanism, the auxiliary wheel can be freely taken off and on, and the rotation of the pedal is not hindered.