JPS632388Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a device for simultaneously fixing the vehicle body upright and operating the parking brake when parking a swing type tricycle.

If you try to ride a tricycle while it is fixed upright, it will have very poor maneuverability, and if you try to ride it in this state, there is a risk of it falling over. The so-called swing type is popular. These swing-type tricycles usually have sprigs to help them stand on their own, but they are difficult to fix completely upright when parked, which is inconvenient when loading and unloading luggage. Although it is possible to increase the self-reliance by strengthening the spring for self-reliance, this will reduce the turning performance when making curves, making it difficult to drive.

On the other hand, regarding parking brakes, conventional three-wheeled bicycles have either been provided with a separate control lever, or have been provided with an auxiliary lever or pin for a stopper on the front or rear brakes to operate the brake. This resulted in problems such as insufficient locking ability and difficulty in operation.

In view of the above-mentioned circumstances, this invention is a swing type tricycle having a parking brake and a swing stopper, in which a sliding piece is provided on a base plate provided on the body, and the sliding piece has a parking brake and a swing stopper. An outer holder is attached to receive the base end of the outer wire of the sliding piece, and an actuating rod with a coil spring wrapped around the circumferential surface is inserted into the center of the sliding piece, and the actuating rod moves forward when the lock petal is pushed down. On the other hand, a release petal having a claw portion at its tip and a petal portion at its rear end is pivotally mounted on the substrate, and further a spring for biasing the release peter is pivotally mounted on the substrate. Arrived,
When the lock petal is pushed down, the pawl portion locks the operating member to prevent it from retreating;
When the lock petal is pressed down when parking, the above-mentioned operating rod moves forward, and along with this, the sliding piece moves forward due to the elasticity of the coil spring, and the outer holder presses the base end of the parking brake and the outer wire of the swing stopper. The parking brake and parking brake of a swing-type tricycle are designed to operate the swing stopper and the parking brake at the same time when the lock pedal is pushed down, and the pawl locks the operating pedal when the lock pedal is pushed down to prevent it from moving back. We propose a device that can be used for both fixed and fixed purposes.

Hereinafter, this invention will be explained based on the illustrated embodiment. Reference numeral 1 is a swing type three-wheeled bicycle. A frame 3 is extended diagonally downward from the middle, a chain stay 4 is extended from the lower end of the saddle post 2, and a fixed base 6 for the shaft 5 is provided at the bottom of the intersection of the frame 3 and chain stay 4. 5 is rotatably attached to a rear wheel frame 8 provided between the axles of rear wheels 7, 7.

On the other hand, the rear wheel brake 9 has a well-known structure, and an inner wire 10 for brake operation is attached to its end, and an outer wire 11 that wraps around the inner wire 10 connects its end to the rear wheel brake 9.
The inner wire 10 is fixed to the housing, and the tip of the inner wire 10 is attached to a brake lever 12 provided on the handle. The rear wheel brake 9 is operated by pulling the inner wire 10 with the brake lever 12.

Further, in order to fix the vehicle body including the saddle post 2 to the rear wheel frame 8, in this embodiment, a fixing plate 13 is provided on the outside of the rear wheel frame 8, and a locking hole 14 is provided in the fixing plate 13. A guide tube 15 is provided on the extension piece 6a of the base 6 at a position corresponding to the locking hole 14, and a pin 16 that is engaged with the locking hole 14 is inserted into the guide tube 15. Note that the pin 16 is normally biased by the spring 16a and is spaced apart from the locking hole 14, but when its tip is pressed by the operating lever 17, it moves forward against the bias of the spring 16a. , are engaged with the locking hole 14.

In this embodiment, the operating lever 17 has its center rotatably attached to the extension piece 6a, and its base end is fixed to one end of the inner wire 18. The other end of the inner wire 18 is fixed to the vehicle body, and the outer periphery of the inner wire 18 is fixed to the vehicle body.
At the same time, the tip of the outer wire 19 is received by a stopper 20 provided on the base.

In the swing type three-wheeled bicycle 1 configured as described above, a guide groove 21 is provided on the upper surface of the chain stay 4 along the longitudinal direction of the chain stay 4.
A base plate 21 having grooves a and 21a is provided, and a sliding piece 23 having a bent portion 22 at the tip is engaged with the guide grooves 21a and 21a, and an outer receiver 23a attached to the sliding piece 23 is connected to the rear wheel. It constitutes a means for simultaneously operating the parking brake and swing stopper by pressing the base ends of the outer wires 11 and 19 of the brake and swing stopper, and is inserted through the center of the sliding piece 23 and an actuating rod 24 having a coil spring 24a wound around its circumferential surface; a lock pedal 25 of the actuating rod 24;
A release pedal 26 is used to lock and unlock the above means.

Specifically, the lock pedal 25 has a petal portion 25a at its tip, and its base end is pivotally attached to the side of the base plate 21 so as to rotate in the longitudinal direction of the actuation rod 24, and at the same time, the lock pedal 25 has a petal portion 25a at its tip. One end of the actuating rod 24 is pivotally mounted. Further, the release pedal 26 has a claw portion 26a at its tip and a pedal portion 26b at its rear end, and its middle end is pivotally connected to the base plate 21 so as to be rotated in the width direction of the actuating member 24. Further, a spring 27 is wound around the pivot portion, and the force of the spring 27 causes the claw portion 26a to always press the side of the actuating rod 24, and the claw portion 26a is locked when the lock pedal 20 is pushed down. The actuating rod 24 is configured to be prevented from retreating.

In addition, stoppers 28, 28 of the sliding piece 23 are provided at positions on both sides of the actuation plate 24 of the base plate 21, and the sliding piece 23 is always on the side of the stoppers 28, 28.

In this invention configured as described above, while the tricycle 1 is running, the body including the saddle post 2 swings in the left and right directions about the shaft 5 with respect to the rear wheel frame 8, so that the balance is maintained. Furthermore, when the inner wire 10 is pulled by operating the brake lever 12 provided on the handle, the rear wheel brake 9 is applied. At this time, the pulling force of the inner wire 10 is transmitted only to the rear wheel brake 9, and the sliding piece 23
is located on the stopper 28, 28 side (Fig. 5b).

Now, when parking the tricycle 1, when the lock pedal 25 provided on the chain stay 4 is pushed down, the actuating rod 24 is pushed rearward, and the coil spring 24a is accordingly moved to the center of the rear surface of the sliding piece 23. to push out the sliding piece 23 backward. Therefore,
Outer receiver 23a attached to sliding piece 23
By pressing the base ends of the outer wires 11, 19, these wires 11, 19 are pushed out rearward. And outer wire 11,1
Since the other end of the wire 9 is fixed to the housing of the rear wheel brake 9 and the stopper 20, when the outer wires 11 and 19 are pushed rearward, the inner wires 10 and 18 inside are pulled. When the inner wire 10 is towed, the rear wheel brake 9 is activated as described above, but in the case of parking,
The rear wheel brake 9 functions as a parking brake.
On the other hand, when the inner wire 18 is pulled, the operating lever 14 rotates and engages the pin 16 with the locking hole 14 of the fixed plate 12 against the bias of the spring 16a. Therefore, the vehicle body is fixed to the rear wheel frame 8.

That is, when the lock pedal 25 is pushed down, the operating pedal 2
4 and the sliding piece 23 move rearward to simultaneously fix the vehicle body and operate the parking brake, and the claw part 26a of the release petal locks the actuation plate 24 to prevent it from moving backward (Fig. 5). c). Also,
When starting the tricycle 1, the locking of the pawl portion 26a is released by the petal portion 26b of the release pedal, and the actuating member 24 is released from the coil spring 24a.
As the vehicle moves backward due to its elasticity, the vehicle body and parking brake return to their original states.

The shaft portion 5 is inserted into the locking hole 14 when the vehicle body is in an upright state, but since the rear wheel frame 8 and the body frame of a three-wheeled bicycle swing freely, if the user accidentally or intentionally Even if the lock pedal 25 is pushed down while the vehicle body frame is tilted, the pin 16 will not be inserted into the locking hole 14, and if the lock pedal 25 is pushed down forcibly, various parts may be damaged. Therefore, in this embodiment, play is provided between the guide grooves 21a, 21a of the substrate 21 and the sliding piece 23, so that in the above case, the sliding piece 23 can freely tilt as shown in FIG. 5d. The rear wheel brake 9 is configured so that only the rear wheel brake 9 operates.

At this time, the spring 16a of the pin 16 is compressed to the extent that the swing stopper cannot operate, so when the vehicle frame is returned to an upright position from this state, the pin 16 is pushed into the locking hole 14 due to the elasticity of the spring 16a. inserted. Therefore, in practical use, there is no need to pay much attention to the upright state of the vehicle body when the lock pedal 25 is pushed down, and the pin 16 is inserted into the locking hole 1 after the lock pedal 25 is pushed down.
All you have to do is correct the upright position of the vehicle body until it is inserted into position 4.

In summary, according to this invention, it is possible to fix the vehicle upright and operate the parking brake with a single operating pedal, making it very easy and reliable to do so, and the parking brake also has a powerful function. can be demonstrated. Furthermore, with this device, the vehicle body is fixed in an upright position and the parking brake is activated at the same time, and the structure is such that only the parking brake cannot be released without releasing the vehicle body in the upright position. This is extremely beneficial in terms of safety since it does not have to be driven while being fixed.

Furthermore, since the vehicle body is reliably fixed upright when parked, a spring device for self-supporting the vehicle can be omitted, which reduces costs and improves maneuverability during driving. Furthermore, there is no need to provide a separate parking brake, the structure is simple, and there is no risk of adversely affecting the operation of the rear wheel brakes.

[Brief explanation of the drawing]

Fig. 1 shows a three-wheeled bicycle equipped with a device according to this invention, Fig. 1a is a perspective view, Fig. 1b is a rear view,
Figure 1c is an enlarged view of section A in Figure 1a;
The figure is a side view of the device according to this invention, and FIG.
4 is an enlarged view of the swing stopper portion; FIG. 5 is a schematic diagram of the operation of the device according to the invention; FIG. Figure b shows the state in which the rear wheel brake is operated by the brake lever when driving, Figure 5 c shows the state in which the lock pedal is folded down when parking, and Figure 5 d shows the state in which the rear wheel brake is swung in the state shown in Figure 5 c. FIG. 6 is a diagram showing a state where the stopper is incompletely operated. In the diagram, 1 is a tricycle, 9 is a rear brake, 1
4 and 16 are locking hole pins that constitute the swing stopper, and 25 is a lock petal.

Claims (1)

[Scope of Claim for Utility Model Registration] In a swing type three-wheeled bicycle having a parking brake and a swing stopper, a sliding piece is provided on a base plate provided on the body, and the sliding piece has a parking brake and a swing stopper. An outer receiver is attached to receive the base end of the outer wire of the sliding piece, and an actuating rod with a coil spring wrapped around the circumferential surface is inserted into the center of the sliding piece. Configure to move forward;
On the other hand, a release pedal having a claw portion at its tip and a petal portion at its rear end is pivotally mounted on the substrate, and furthermore, a spring for biasing the release pedal is pivotally mounted on the substrate, so that a lock pedal is formed. When the lock petal is pushed down, the pawl locks the operating lever and prevents it from moving backward. When the lock petal is pushed down during parking, the operating lever moves forward, and the elasticity of the coil spring is accordingly reduced. The sliding piece moves forward and the outer receiver presses the base end of the outer wire of the parking brake and swing stopper to operate the swing stopper and parking brake at the same time, while the claw is activated when the lock petal is pushed down. A device which serves both as a parking brake and an upright fixing device for a swing type three-wheeled bicycle, characterized by locking the pedestal and preventing its backward movement.