JPH028874Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention is applied to the headlight case of motorcycles, three-wheelers, etc., especially at the rear of the head pipe of the body frame, in front of the engine, and approximately within the width of the front fork in the width direction of the vehicle body. This invention relates to a headlight cage for motorcycles, tricycles, etc., which is equipped with an engine cooling radiator on one side of the center.

[Prior art]

Recently, water cooling has been used as an engine cooling method for motorcycles, tricycles, etc., and tricycles equipped with engine cooling radiators have appeared, and this radiator is usually located behind the head pipe and in front of the engine. It is located in Many of these radiators project outward in order to effectively use the wind directly from the front to improve cooling performance, but there are front fenders, headlight cases, etc. in the front.
For example, in vehicles with wide spacing between front forks, such as tricycles equipped with wide, low-pressure balloon tires for running on sandy terrain, etc., the front fender and headlight case located at the front are particularly wide, so the radiator Most of the parts were covered by these, and the wind from the front was blocked, resulting in a disadvantage in that the cooling performance deteriorated.

[Purpose of invention]

The present invention was developed in view of the above-mentioned circumstances, and aims to improve the cooling performance of the radiator, in particular the cooling performance of the radiator, most of which is covered by the front fender, headlight case, etc. located at the front. The purpose of this invention is to provide a headlight case for motorcycles, tricycles, etc. that has improved cooling performance.

[Structure of the idea]

The present invention was developed to achieve the above-mentioned object, and includes a head pipe fixed to the front end of the vehicle body frame that rotatably supports a top bridge and a bottom bridge, and a pair of left and right bridges that support front wheels at both ends of the top bridge and bottom bridge. In a headlight case of a motorcycle, a tricycle, etc., which is equipped with a front fork and is equipped with an engine cooling radiator located behind the head pipe, ahead of the engine, and offset to one side in the width direction of the vehicle body approximately within the width of the front fork. , the headlight case is disposed between the front forks, and between the front fork and the headpipe on the side where the engine cooling radiator is disposed in the vehicle body width direction of the headlight case, and between the top bridge and the bottom bridge. It is characterized by having ventilation holes formed in close proximity to each other, and a headlight placed between the front fork and the head pipe on the other side and near the top bridge.

〔Example〕

The present invention will be described in detail below based on an embodiment used in a tricycle shown in the drawings.

The tricycle in this example is shown in Figures 1 and 2.
As shown in the figure, a handle 2 is placed in front of the vehicle body frame 1.
A front tire 4 is attached to a pair of front forks 3, 3 which are provided so as to be steerable by means of a lever. Rear tires 6 and 6 are respectively mounted, and a front fender 7 and a rear fender 8 are provided above the front tire 4 and the rear tires 6 and 6, respectively. The front tires 4 and rear tires 6, 6 are wide, low-pressure balloon tires for running on sand, etc., and the distance between the front forks 3, 3 is wide. In addition, a fuel tank 9,
At the rear, connecting tubes 10a and 10b
And above the carburetor 11 is a sheet 12,
An engine 13 is provided below the fuel tank 9, and the handle 2 having a clutch lever 14, a brake lever 15, and a throttle lever 16 is attached to the top bridge 3a above the front forks 3, 3. Headlight cases 18 each having a square headlight 17 are provided in front of a space surrounded by the forks 3, 3, top bridge 3a, and bottom bridge 3b. A radiator 19 is located behind the head pipe 1a and the front fender 7, in front of the engine 13, and approximately within the width of the front forks 3, 3, below the fuel tank 9, with the main frame 1b sandwiched between them. A radiator reserve tank 20 is installed near the main frame 1b on the other side by being attached to the lower part of the fuel tank 9, and the reserve tank 20 is protected. The radiator 19 is located inside the outer part 3c' of the boot 3c worn by the front fork 3 located in front of the radiator 19. Therefore, the headlight case 18, the front fender 7, etc. are located in front of the radiator 19, that is, in a position that blocks wind from the front of the vehicle body. As shown in FIG. 3, the headlight case 18 has a substantially elongated rectangular ventilation hole 21 formed on the substantially entire surface of the radiator 19 side from the center in the width direction of the vehicle body, that is, in a location located in front of the radiator 19. In addition, a guide plate 21a is formed on the inner wall of the ventilation hole 21, as shown in FIG. 4, to arrange the airflow and guide the air efficiently to the radiator 19, and a headlight 17 is provided above the other side. A cutout is formed below it to reduce weight. As shown in FIG. 5, this headlight case 18 is constructed by wrapping one end of a band 22 made of rubber or the like around the front forks 3, 3 and securing it with a fastening member 23, and attaching a grommet 24 provided at the other end to the head. The light case 18 is fitted between the front forks 3 by fitting into holes formed on both side surfaces 18a, 18a.

In addition, 1d is a carry pipe, 25 is a radiator shroud that covers the radiator 19 from the side of the vehicle body and expands at the front to introduce wind from the front of the vehicle body to increase cooling efficiency, 26 is an expansion chamber, 27 is a brake pedal, 28 is a change pedal, 29 is a step, 30 is a submuffler, and 31 is a rear axis unit.

In the headlight case configured as described above, as shown by arrows in FIGS. 4 and 5, wind from the front passes through the ventilation hole 21 of the headlight case 18 while being guided by the guide plate 21a, and the air flows through the radiator 1.
9 and after exchanging heat, it flows backward.

In this embodiment, a three-wheeled motor vehicle is equipped with balloon tires, but it goes without saying that ordinary tires may also be mounted on the motor vehicle, or a two-wheeled motor vehicle may be mounted thereon.

[Effect of idea]

This invention has a configuration in which a ventilation hole is formed at a location corresponding to the radiator in the headlight case located in front of the radiator, so even if the headlight case is located in a position that blocks the front of the radiator, the wind from the front of the vehicle can be prevented. The air can be directly introduced into the radiator from the ventilation hole without generating turbulence, and the opening area of the ventilation hole can be increased, thereby significantly improving the cooling performance. In particular, it is extremely effective in improving the cooling performance of tricycles, etc., where the distance between the front forks is long, so the radiator does not extend to the outside of the front fork, and the front part is mostly covered by a headlight case etc. It has become a thing.

Additionally, since the headlight case is placed between the front forks, the headlight area can be made more compact. Furthermore, since the headlights are placed near the top bridge, the headlights are positioned high on the vehicle body, effectively preventing mud from adhering to the vehicle while the vehicle is running.

[Brief explanation of drawings]

Figures 1 to 5 show an embodiment of the present invention, in which Figure 1 is a side view of a tricycle, Figure 2 is a plan view, and Figure 3 is a portion showing a headlight case according to the present invention. A front view, FIG. 4 is a cross-sectional view of FIG. 3 showing the flow of wind from the front of the vehicle body, and FIG. 5 is a cross-sectional view of FIG. 3. 1 is the body frame, 1a is the head pipe, 1b
is the main frame, 3 is the front fork, 3a
is the top bridge, 3b is the bottom bridge, 13
1 is an engine, 17 is a headlight, 18 is a headlight case, 19 is a radiator, 21 is a ventilation hole, and 21a is a guide plate.

Claims (1)

[Scope of utility model registration request] A top bridge and a bottom bridge are rotatably supported by a head pipe fixed to the front end of the vehicle body frame, and a pair of left and right front forks for supporting the front wheels are attached to both ends of the top bridge and bottom bridge, and the front fork is located behind the head pipe and in front of the engine. In a headlight case for a motorcycle, three-wheeled vehicle, etc., which is provided with an engine cooling radiator that is offset to one side in the width direction of the vehicle body approximately within the front fork width, the headlight case is disposed between the front forks, and , a ventilation hole is formed between the front fork and the head pipe on the side where the engine cooling radiator is installed in the vehicle body width direction of the headlight case, and between the top bridge and the bottom bridge at a position close to both bridges, and A headlight case for a motorcycle, three-wheeled vehicle, etc., characterized by a headlight arranged between a fork and a headpipe and near a top bridge.