JPH09193843A - Trailer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a trailer which can park stably even on a slant road surface by providing a parking brake means. SOLUTION: In a trailer 2, brake devices 18L, 18R are installed respectively on wheels 15L, 15R pivoted in right/left sides of a bed part 12 and one main brake cable 41 extended from a tractor (for example, a motor cycle) to the rear side is connected to two sub-brake cables 42L, 42R through an equalizer device 31 and these two sub-brake cables 42L, 42R are connected to right/left brake devices 18L, 18R respectively and also a parking brake lever 21 is installed in front of the bed part 12. A parking brake cable 43 extended from this brake lever 21 to the rear side are connected to two sub-brake cables 42L, 42R through the equalizer device 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a towed vehicle such as a rear car or a trailer connected to a rear portion of a motorcycle or the like and towed.

[0002]

2. Description of the Related Art Most of such towed vehicles are not provided with a braking device, and the braking is dependent only on the braking device of a towing vehicle such as a motorcycle. In this case, there is no problem if the load of the towed vehicle is light, but if the load is heavy, the braking force may be insufficient with only the brake device of the motorcycle or the like. Therefore, a towed vehicle provided with a brake device is provided so that the vehicle can be safely braked even when the loaded weight is heavy.

Such a brake device for a towed vehicle is adapted to operate simultaneously with the operation of the brake device for the tow vehicle. Therefore, a sufficient braking force is applied to both the towing vehicle and the towed vehicle, and the vehicle can be safely braked.

[0004]

However, many motorcycles do not have parking brake means, and when such a motorcycle is used as a towing vehicle, the towed vehicle must be pulled if the road surface is not flat when parked. Since the motorcycle and the towed vehicle start to crawl due to the weight of the vehicle, it cannot be parked stably unless wheel stoppers are used, which is very inconvenient.

The present invention has been made to solve this problem. A first object of the present invention is to provide a towed vehicle which is provided with a parking brake means and can be parked stably on an inclined road surface. To provide.

A second object of the present invention is to obtain a parking brake means with a simple, low-cost and good-maintenance structure and to easily confirm the operating state of the parking brake means.

[0007]

In order to achieve the above object, the towed vehicle according to the present invention has, as described in claim 1, a brake device provided on each of wheels that are axially supported on both left and right sides of a luggage carrier. , One main braking cable extending rearward from the towing vehicle is connected to two auxiliary braking cables via the equalizer device, and these two auxiliary braking cables are connected to the left and right braking devices, respectively, and the parking brake lever is also connected. Was provided in front of the luggage platform, and the parking brake cable extended rearward from this parking brake lever was connected to the two auxiliary braking cables via the equalizer device.

Further, as described in claim 2, the equalizer device is arranged so as to be movable back and forth between a front outer receiver and a rear outer receiver which are fixed to each other at a front and rear distance and a front and rear outer receiver. Configured with a slider,
The slider is provided with one front fitting part located in the front part and two left and right rear fitting parts located in the rear part, and the rear end of the outer cable of the main braking cable is held by the front outer receiver, and the inner cable The cable end at the rear end is held by the front fitting part of the slider, and the front ends of the outer cables of the left and right auxiliary braking cables are held by the rear outer receivers, and the cable end at the front end of the inner cable is fitted by the rear fitting of the slider. The rear end of the outer cable of the parking brake cable was held by the front outer receiver, and the cable end of the rear end of the inner cable was held by the front fitting part of the slider.

[0009]

DETAILED DESCRIPTION OF THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an embodiment of the present invention and is a left side view showing a state in which a towed vehicle 2 is connected to a rear portion of a motorcycle 1 which is a towing vehicle.

The vehicle body frame 3 of the motorcycle 1 is provided with a traction device 5 surrounding the rear wheel 4, and a connector 6 such as a hitch ball is provided at the rear end of the traction device 5. There is. The height of the coupler 6 is set to be substantially the same as the height of the axle 7 of the rear wheel 4, and the guide member 8 having an inverted U-shape.
Are provided so as to straddle the coupler 6. The coupler 6
May have other shapes such as hooks.

On the other hand, the towed vehicle 2, as shown in FIG. 2 which is a bottom view, includes an underframe 11 made of, for example, a square pipe,
A frame-shaped loading platform 12 fixed on it, and a backbone pipe 13 made of a thick square pipe fixed in the center of the lower surface of the underframe 11 and extending in the front-rear direction. The backbone pipe 13 extends longer than the front end of the underframe 11, and a connector holder 14 attached to the tip of the backbone pipe 13 grips the connector 6 of the traction device 5 for connection.

On both left and right sides of the loading platform 12, wheels 15L,
15R is pivotally supported. These wheels 15L, 15R are supported by arranging an axle 17 between a total of four wheel support plates 16 fixed to both sides of the underframe 11 and both sides of the cargo bed 12. The left and right wheels 15L and 15R are provided with drum-type brake devices 18L and 18R, respectively.

On the other hand, the backbone pipe 13 has a cargo bed section.
A parking brake lever 21 located in front of 12 is provided. As shown in FIGS. 3 and 4, the parking brake lever 21 is arranged on the right side surface of the backbone pipe 13,
It is supported by a lever shaft 22 penetrating laterally through the backbone pipe 13 and is rotatable in the front-rear direction, and can be moved slightly in the axial direction of the lever shaft 22, and is usually provided on the left side of the lever shaft 22. Cushion washer 24 located inside the washer 23
Attracted to the 13th side.

A positioning plate 25 is fixed to the right side surface of the backbone pipe 13, and five engaging holes 26 are formed in the positioning plate 25 so as to form an arc around the lever shaft 22. The engaging protrusion 27 fixed to the intermediate portion of the parking brake lever 21 is engaged with these engaging holes 26. A columnar cable holder 28 is pivotally supported on the action point side of the parking brake lever 21.

To rotate the parking brake lever 21,
The parking brake lever 21 is once moved to the right to disengage the engagement protrusion 27 from the engagement hole 26, and then rotated. Then, when the hand is released, the parking brake lever 21 is moved to the left by the elastic force of the cushion washer 24, the engaging protrusion 27 is engaged with the engaging hole 26, and the parking brake lever 21 is positioned.

Further, an equalizer device 31 is provided in the middle of the backbone pipe 13. The equalizer device 31 includes a front outer casing 32 and a rear outer casing 33 fixed to the lower surface of the backbone pipe 13 with a front-rear spacing.
And a slider 34 which is arranged so as to be movable back and forth between the front and rear outer receivers 32, 33. As shown in FIG. 5, the slider 34 has one front fitting portion 35 located at the front portion.
And two left and right rear fitting portions 36 located at the rear portion. These fitting portions 35 and 36 are formed from the lower surface of the slider 34 to a depth that does not penetrate the cylindrical holes 35A and 36A, and further have slits 35B and 36B.

By the way, one main braking cable 41 extends rearward along the backbone pipe 13 from the motorcycle 1 which is a towing vehicle, and the rear end of the main braking cable 41 is left and right via the equalizer device 31. Two auxiliary braking cables 42
It is connected to L and 42R. These two auxiliary braking cables 42
L and 42R are respectively arranged along the frame of the cargo bed 12, and are connected to the brake devices 18L and 18R of the left and right wheels 15L and 15R. Further, a parking brake cable 43 extending rearward from the parking brake lever 21 is connected to the two auxiliary braking cables 42L and 42R via the equalizer device 31.

The main braking cable 41, the left and right auxiliary braking cables 42L and 42R, and the parking brake cable 43 are tubular outer cables 41A, 42A and 43A, respectively, and a wire-shaped inner cable slidably inserted therein. cable
It consists of 41B, 42B and 43B.

The main braking cable 41 has a rear end of an outer cable 41A held by a front outer receiver 32 of an equalizer device 31, and a short cylindrical cable end 41r provided at a rear end of an inner cable 41B of a slider 34. Front fitting part 35
Is held. Further, in the auxiliary braking cables 42L and 42R, the front end of the outer cable 42A is held by the rear outer receiver 33 of the equalizer device 31, and the cable end 42f at the front end of the inner cable 42B is held by the rear fitting part 36 of the slider 34. It

Further, in the parking brake cable 43, the outer cable 43A has a front end held by an outer support 44 fixed to the lower surface of the backbone pipe 13, and the inner cable 43B has a cable end 43f at the front end which is a cable of the parking brake lever 21. It is connected to the holder 28 with a nut 45.
On the other hand, the rear end of the outer cable 43A has an equalizer device 31
Is held by the front outer receptacle 32 of the inner cable 43B, and the cable end 43r at the rear end of the inner cable 43B is held by the front fitting portion 35 of the slider 34.

As shown in FIG. 5, the front fitting portion of the slider 34
35, the cable end 41r of the inner cable 41B first
Is inserted, and then the cable end 43r of the inner cable 43B is inserted. A plate-like lid member 46 is fastened to the lower surface of the slider 34 with bolts 47 to prevent the four cable ends 41r, 42f, 43r from being pulled out.

By the way, FIG. 6 is a right side view of the rear wheel braking device 50 of the motorcycle 1. This rear wheel brake device
50 is, for example, a drum type, and when the brake rod 53 connected to the tip of the braking brake lever 52 provided on the brake panel 51 is pulled forward in conjunction with the movement of a brake pedal (not shown), the braking brake lever 52 is The brake shoe inside is expanded by pivoting forward so that the rotation of the rear wheel 4 is braked.

A holder arm 55 extending obliquely rearward and downward is fixed to the rear end of the swing arm 54 supporting the rear wheel 4, and the main braking cable is attached to the tip of the holder arm 55.
The front end of the outer cable 41A of 41 is held. Also,
The cable end 41f at the front end of the inner cable 41B of the main braking cable 41 is coupled to the braking brake lever 52.
The connecting position of the cable end 41f should be as close as possible to the connecting position of the brake rod 53.

When the braking brake lever 52 is pulled forward and the rear wheel braking device 50 is activated, the main braking cable is simultaneously moved.
Since the inner cable 41B of 41 is also pulled forward, the slider 34 of the equalizer device 31 moves forward. Therefore, the left and right sub-braking cables 42L, 42R inner cables
42B is also pulled forward, and the left and right brake devices of towed vehicle 2
18L and 18R operate simultaneously.

The slider 34 of the equalizer device 31 includes one inner cable 41B and two inner cables 42B.
Since and are connected in a balance, even if there is a difference in the left and right brake levers (not shown) of the brake devices 18L and 18R, the difference in the left and right brake devices is caused by a slight rotation of the slider 34. Be absorbed. Therefore, the left and right brake devices 18L and 18R can be operated evenly.

When the motorcycle 1 and the towed vehicle 2 are parked, the parking brake lever 21 is pulled rearward, and the slider 34 of the equalizer device 31 and the left and right sub-brakes are connected via the inner cable 43B of the parking brake cable 43. Cable 42L, 42
Since the R inner cable 42B is pulled forward, the brake devices 18L, 18R of the towed vehicle 2 are activated and the wheels 15L, 15R
Is braked. Then, the engagement protrusion 27 of the parking brake lever 21 engages with the engagement hole 26 of the positioning plate 25, and the parking brake lever 21 pulled backward is positioned at that position.

In this way, by connecting the parking brake cable 43 extending from the parking brake lever 21 to the two auxiliary braking cables 42L, 42R via the equalizer device 31, the brake devices 18L, 18R of the towed vehicle 2 are connected. It can be used as a parking brake means. Therefore, the motorcycle 1 and the towed vehicle 2 can be parked stably even on an inclined road surface.

Moreover, the equalizer device 31 has a slider 34 disposed between a front outer casing 32 and a rear outer casing 33, which are fixed in the front and rear with a space therebetween, and the front outer casing 32 has a main braking cable 41 and a parking brake. The rear ends of the outer cables 41A, 43A of the cable 43 are held, the front ends of the outer cables 42A of the auxiliary braking cables 42L, 42R are held by the rear outer receiver 33, and the front fitting portion 35 formed on the slider 34 is The main braking cable 41 and the auxiliary braking cable 42 are attached to the rear fitting portion 36.
Inner wire 41B of L, 42R and parking brake cable 43,
Since it has a simple structure in which the cable ends 41r, 42f, 43r of 42B, 43B are held, the parking brake means can be obtained with a very low cost and good maintenance structure, and its operation is also reliable.

Further, the parking brake lever 21 is provided in front of the loading platform 12 of the towed vehicle 2 so that it can be easily seen by the occupant of the motorcycle 1, and by checking the inclination of the parking brake lever 21, the parking brake means ( Brake device
You can easily check whether 18L, 18R) are working. Therefore, for example, it is possible to prevent the motorcycle 1 from being accidentally started while the parking brake means remains activated.

[0030]

As described above, the towed vehicle according to the present invention is provided with the brake devices on the wheels pivotally supported on both the left and right sides of the loading platform, and has one main braking cable extending rearward from the towed vehicle. Two auxiliary braking cables are connected via an equalizer device, these two auxiliary braking cables are respectively connected to the left and right braking devices, and a parking brake lever is provided in front of the luggage carrier part, and rearward from this parking brake lever. It is characterized in that the extended parking brake cable is connected to two auxiliary braking cables via an equalizer device.

According to this structure, since the brake device of the towed vehicle can be utilized as the parking brake means, the towed vehicle and the towed vehicle can be parked stably even on an inclined road surface. .

Moreover, the parking brake lever is provided in front of the loading platform of the towed vehicle so that it can be easily seen by the occupant of the towed vehicle. By observing the inclination of the parking brake lever, whether the parking brake means is operating or not. It is very convenient because you can easily check.

Further, in the towed vehicle according to the present invention, the equalizer device is arranged so that it can be moved back and forth between a front outer receiver and a rear outer receiver which are fixed at a front and rear interval with a space therebetween. The slider is provided with one front fitting portion located in the front portion and two rear fitting portions on the left and right located in the rear portion, and the rear end of the outer cable of the main braking cable is connected to the front outer portion. The rear cable end of the inner cable is retained in the front fitting part of the slider, and the front ends of the outer cables of the left and right auxiliary braking cables are retained in the rear outer receiver.
The cable end at the front end of the inner cable is retained in the rear fitting part of the slider, and the rear end of the outer cable of the parking brake cable is retained in the front outer receiver.
The cable end at the rear end of the inner cable is held by the front fitting portion of the slider.

Therefore, the parking brake means can be obtained with a simple, low-cost and good maintenance structure, and its operation is also reliable.

[Brief description of the drawings]

FIG. 1 is a left side view of a motorcycle that is a towing vehicle and a towed vehicle.

FIG. 2 is a bottom view of the towing vehicle showing the embodiment of the present invention.

FIG. 3 is an enlarged view of a part III in FIG.

FIG. 4 is a vertical sectional view taken along the line IV-IV in FIG.

FIG. 5 is an exploded perspective view of a slider of the equalizer device as seen from below.

FIG. 6 is a right side view of the rear wheel braking device of the motorcycle.

[Explanation of symbols]

 1 motorcycle 2 towed vehicle 12 loading platform 15L, 15R wheels 18L, 18R brake device 21 parking brake lever 31 equalizer device 32 front outer casing 33 rear outer casing 34 slider 35 front fitting portion 36 rear fitting portion 41 main braking cable 42L, 42R Secondary braking cable 43 Parking brake cable 41A, 42A, 43A Outer cable 41B, 42B, 43B Inner cable 41r, 42f, 43r Cable end

Claims (2)

[Claims] 1. Wheels 15L axially supported on the left and right sides of the loading platform 12,
Brake devices 18L and 18R are provided on 15R respectively, and one main braking cable 41 extending rearward from a towing vehicle (for example, a motorcycle 1) is connected to two auxiliary braking cables 42L and 42R via an equalizer device 31, These two auxiliary braking cables 4
2L and 42R are respectively connected to the left and right brake devices 18L and 18R, a parking brake lever 21 is provided in front of the loading platform 12, and a parking brake cable 43 extending rearward from the parking brake lever 21 is provided via the equalizer device 31. The towed vehicle 2 is characterized in that it is connected to two auxiliary braking cables 42L and 42R. 2. A front outer receiver 32 and a rear outer receiver 33, in which the equalizer device 31 is fixed to the front and rear with a space therebetween.
And a slider 34 arranged so as to be movable back and forth between the front and rear outer receivers 32, 33. The slider 34 includes one front fitting portion 35 at the front portion and left and right portions at the rear portion. Two rear fitting parts 36 are provided so that the rear end of the outer cable 41A of the main braking cable 41 is held by the front outer receiver 32, and the cable end 41r at the rear end of the inner cable 41B is fitted to the front fitting part of the slider 34. 35, while holding the front ends of the outer cables 42A of the left and right sub-braking cables 42L, 42R on the rear outer bridge 33,
Connect the cable end 42f at the front end of B to the rear mating part of the slider 34.
The rear end of the outer cable 43A of the parking brake cable 43 is retained by the front outer bridge 32, and the cable end 43r of the rear end of the inner cable 43B is retained by the front fitting portion 35 of the slider 34. The towed vehicle according to claim 1.