JPH0247103Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a motorized bicycle, and particularly to a rear car that is towed by being connected to a vehicle having a cargo platform at the rear.

[Conventional technology]

It has been practiced to use a motorized bicycle as a tow vehicle and connect a rear car to it to transport loads (for example, Japanese Patent Application Laid-open No. 189613/1989,
(Refer to Publication No. 24677 and Japanese Utility Model Application Publication No. 51-32844).

[Problem that the invention attempts to solve]

The above-mentioned rear cars are generally connected to the rear cargo bed of the motorized bicycle or near it, but the coupler is stacked on top of the cargo bed and fixed vertically, or it is fixed above the cargo bed near the bottom of the saddle. Therefore, there is some kind of obstruction on the top of the loading platform, making it impossible to place the load on the loading platform. In other words, the cargo bed cannot be used when towing a rear car.

Furthermore, conventional rear cars towed by motorized bicycles are not equipped with security lights such as tail lights, brake lights, turn signals, etc., and the rear security lights of motorized bicycles obscure the rear car and are difficult to see from vehicles following.

Furthermore, since conventional rear cars are not particularly equipped with brakes, when decelerating or stopping, an excessive load is applied to the connecting parts due to loading or inertia of the rear car, which impairs the durability of the connecting parts.

The present invention aims to solve the above-mentioned problems of conventional motorized bicycle rear cars.

[Means for solving problems]

In order to achieve the above object, the present invention provides a rear car for a motorized bicycle, in which a one-axle two-wheeled rear car body and a coupler that can be detached from the rear cargo bed of the motorized bicycle are connected at a low position by means of a universal joint. Combined, tail lights and other necessary security lights are attached to the rear car body, brakes are installed on the wheels,
At the front upper part of the coupler, there are approximately flat clamps that are tightened from the front and rear, respectively, on the front and rear sides of the outer periphery of the cargo platform, and connect the safety light wiring of the rear car body to the safety light wiring of the motorized bicycle. The gist is that the brake operating wires of the wheels of the rear car body are removably connected to the brake operating wires of the motorized bicycle by a connecting member.

[Effect]

The trailer main body is connected to the motorized bicycle by locking and tightening the clamps of the coupler to the front and rear sides of the outer periphery of the cargo platform.

At the same time, the safety light wiring of the rear car is connected to the safety light wiring of the motorized bicycle by a connector, and the brake operating wire of the rear car is connected to the brake operating wire of the motorized bicycle via a connecting member.
Load the luggage appropriately on the cart, and since there is nothing obstructing the upper surface of the carrier of the motorized bicycle, you can also load the cargo on the carrier as usual.

Since the universal joint acts on the unevenness of the road surface when turning, traveling and turning is smooth. Since the adjustable joint is located at a low position, it does not get in the way when loading and unloading cargo.

If you turn on the safety light on your motorized bicycle, the safety light on the rear car will also come on at the same time. Also, when you apply the brakes, the rear car also brakes at the same time.

〔Example〕

FIG. 1 is a side view of the motorized bicycle connected to the rear car of the present invention, and FIG. 2 is a plan view showing how the safety light wiring and brake operation wires are connected to the motorized bicycle and the rear car of the present invention.

1 is a rear car body, 2 is a coupler that can be attached and detached to the rear cargo bed 4 of a motorized bicycle 3, and the rear car body 1 is equipped with a single shaft and two-wheeled wheels 5, and the rear car body 1 and the coupler 2 are located at a low position. They are connected by a universal joint 6. The illustrated universal joint 6 has forked pieces fixed to opposing shaft ends, and the ends of each arm of a cross piece are connected to the forked pieces, but other types of universal joints that do not have cross pieces can also be used. good. A buffer spring 32 is interposed between the universal joint 6 and the coupler 2 to absorb shocks in the front and rear directions.

At the bottom of the rear end surface of the rear car body 1, there is a frame 1A.
It is equipped with security lights such as a tail lamp (combined with a brake lamp) 7 and turn signals 8 supported by the vehicle.

Wiring 9 of the security lights 7 and 8 of the above-mentioned rear car body 1
is configured to be connected to the wiring 12 of the safety lights 10, 11 of the motorized bicycle 3 via a connector 13.

The wheels 5 of the rear car body 1 are equipped with brakes 14 that can be band brakes or drum brakes.
It is equipped with

Two brake operation wires 17 are connected to a lever 16 that operates the front wheel brake 15 of the motorized bicycle 3.
18 and connect one wire 17 to the front wheel brake 1.
5, and connect the connecting member 1 to the end of the other wire 18.
9 is provided to support it at an appropriate location on the vehicle body.

The operating wire 20 of the brake 14 of the wheel 5 of the rear car is connected to the connecting member 19. The brake operation wire 20 of the rear car is divided into two by a distributor 21 disposed at the front end of the frame 1A, and is connected to the brakes 14, 14 of the left and right wheels, respectively.

FIG. 3 shows the most preferable example of the connecting member 19, which consists of a pair of long and short cylinders 19A and 19B screwed into each other, and a slider 24 having wire connecting holes 22 and 23 at the front and rear thereof. Contains. A compression coil spring 25 is inserted between the bottom of the longer cylindrical body 19A and the slider 24.

The brake operation wire 18 of the towing side, that is, the motorized bicycle 3 is passed through the longer cylindrical body 19A, and the latch piece 26 at the end is fitted into one hole 22 of the slider 24. The outer 18A of the wire 18 is the cylindrical body 19
It is fixed to the end of A with a push screw 27.

A brake operating wire 20 on the rear car side is passed through the shorter cylindrical body 19B, and a locking piece 28 at the end thereof is fitted into the other hole 23 of the slider 24. The outer 20A of the wire 20 is supported by the end of the short cylindrical body 19B.

To uncouple the connection from the connected state shown in FIG. 24.

Brake operation wires 18, 2 as described above
0 is released, the rear car side end 24A of the slider 24 is exposed from the end of the long cylinder 19A.

The diameter of the exposed end 24A of the slider 24 is made slightly smaller so that the operation of the slider 24 is not hindered even if the exposed end 24A of the slider 24 gets wet with water or mud and rusts.

FIG. 4 is a plan view showing how the coupler is attached to the loading platform using a clamp, and FIG. 5 is a longitudinal side view.

The coupler 2 consists of a frame with an inverted L-shape on the side.
The universal joint 6 is attached to the rear surface of the lower end of the vertical frame 2A.

The horizontal frame 2B is formed in a shape and size that surrounds the outer periphery of the rear loading platform 4 of the motorized bicycle 3, and is provided at positions facing the front and rear sides of the loading platform 4 of the horizontal frame 2B, respectively. A flat clamp is constructed by providing a fixed jaw 29 and a movable jaw 30 that are respectively locked on the sides, and providing a movable jaw advance/retreat bolt 31 between the movable jaw 30 and the beam 2C of the horizontal frame 2B.

Move the movable jaw 30 backward, position the horizontal frame 2B of the coupler 2 on the outer periphery of the loading platform 4, and then move the fixed jaw 29
When the bolt 31 is locked to the front side of the loading platform 4 and the bolt 31 is turned in the tightening direction, the movable jaw 30 comes into contact with the rear side of the loading platform 4, and is further pressed so that both jaws 29 and 30 are fixed to the loading platform 4. That is, it is a clamp that is attached to the loading platform 4 from the front and rear directions.

[Effect of idea]

The rear car for motorized bicycles of this invention has one axle and two
It consists of a wheeled rear car body and a coupler that can be detached from the rear cargo bed of a motorized bicycle.The rear car body and coupler are connected at a low position by a universal joint, and the rear car body is equipped with a tail lamp and other necessary security lights. In addition, the wheels are equipped with brakes, and the coupler has flat clamps on the front upper part of the coupler that are tightened and fixed to the front and rear sides of the outer periphery of the cargo platform, respectively, and The safety light wiring of the main body is connected to the safety light wiring of the motorized bicycle via a connector, and the brake operating wires of the wheels of the rear car main body are removably connected to the brake operating wires of the motorized bicycle with a connecting member. Because it is a bicycle, it can be easily connected using the rear cargo bed of a motorized bicycle, and
Even though the rear loading platform is used as the connected part, it is possible to place loads on that loading platform as before.
Can carry many loads at once.

The universal joint between the trailer body and the coupler is located at a low position, so it does not get in the way of loading or unloading cargo.

The wheels of the rear car are also equipped with brakes, which are linked to the brake operation of the motorized bicycle, so deceleration and stopping are smooth and no excessive load is placed on the connecting parts. Therefore, the durability of the connecting portion is also maintained.

There is also a safety light at the rear of the rear car body, which works in conjunction with the safety light of the motorized bicycle, so that even if the safety light of the motorized bicycle cannot be seen due to the rear car and its cargo, it is easily visible to vehicles following.

The rear car's brake operating wire is connected to the motorized bicycle's brake operating wire via a detachable connection member, and the rear car's safety light wiring is connected to the motorized bicycle's safety light wiring via a connector, so the rear car can be connected to the motorized bicycle. When the bicycle is removed from the bicycle and ridden alone, the safety light wiring and brake operation wire can be easily disconnected.

[Brief explanation of the drawing]

Fig. 1 is a side view of a rear car according to the present invention connected to a motorized bicycle, and Fig. 2 is a plan view showing a state in which security light wiring and brake operation wires are connected between the rear car and motorized bicycle of the present invention. Third
Figure 4 is an enlarged vertical side view of the connecting member of the brake operation wire, Figure 4 is an enlarged plan view showing how the coupler is attached to the rear cargo bed of a motorized bicycle, Figure 5
The figure is a longitudinal sectional side view of the same. 1...Rear car body, 2...Coupler, 3...Motorized bicycle, 4...Rear cargo platform, 5...Wheel of rear car body, 6...Universal joint, 7, 8...Security light of rear car body, 9... Security light wiring for rear car body, 10, 11... Security light for motorized bicycle, 1
2... Safety light wiring for motorized bicycle, 13... Connector, 14... Brake of rear car body, 15
...Motorized bicycle brakes, 18,20...
Brake operation wire, 19... Brake operation wire connection member, 29, 30, 31... Flat clamp of coupler.

Claims (1)

[Scope of utility model registration request] It consists of a single-axle, two-wheeled rear car body and a coupler that can be detached from the rear cargo bed of a motorized bicycle.The rear car body and coupler are connected at a low position by a universal joint, and the rear car body is equipped with a tail lamp and other necessary equipment. The coupler has a security light, and the wheels are equipped with brakes, and the coupler has a substantially flat clamp on the front upper part thereof that is fastened to the front and rear sides of the outer periphery of the loading platform by locking and tightening them from the front and rear, respectively. The safety light wiring of the rear car body is connected to the safety light wiring of the motorized bicycle via a connector, and the brake operation wire of the wheels of the rear car body can be freely attached and detached to the brake operation wire of the motorized bicycle with a connecting member. A rear car for a motorized bicycle, characterized in that the rear car is connected to a motorized bicycle.