JPS6345966B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a heating mechanism for a handle grip portion of a steering handle in a snowmobile.

In general, snowmobiles are often used for long tours during the harsh winter months. In this case, although the snowmobile is equipped with a windshield, the wind from the vehicle hits the hand holding the handle grip, making it unbearable to endure the coldness. To solve this problem, a snowmobile has been proposed in which a heating wire is passed through the handle grip so that the handle grip can be heated from the palm of the hand. however,
In this snowmobile, only the palm that touches the heating wire is warmed, but the back of the hand is not heated at all, and the effect of warming the hand gripping the handle grip is not very great.

The present invention was made to address these problems, and its main purpose is to provide a special device for heating the hand holding the handlebar clip of the steering handle in a snowmobile equipped with a forced air-cooled engine. To sufficiently warm a hand gripping a handle grip without providing a heat source.

Hereinafter, the present invention will be explained based on the drawings. FIG. 1 shows a snowmobile equipped with a heating mechanism according to the present invention. This snowmobile is equipped with a forced air-cooled engine that is cooled by a cooling fan 10 that is linked to a crankshaft. multiple louvers 11
a, 11b, and 11c are provided. In this snowmobile, the cylinder part 12 of the engine is covered with an air shroud 13 as shown in FIG. 2, and the outside air guided from the louver 11a is The air is introduced into the air shroud 13 to forcibly cool the cylinder section 12.

Therefore, the outlet 13a of the air shroud 13
One end of an air duct 21 is attached to the air duct 21, as shown in FIGS. 2 and 3. Air duct 2
1 has one end connected to the exhaust port 13a of the air shroud 13.
a large diameter pipe 21b having one end rotatably connected to the other end of the bellows pipe 21a, and a pair of branch pipes connected to the other end of the large diameter pipe 21b and branching left and right. 21c is the main component. The main shaft 14a of the steering handle 14 passes through the large diameter pipe 21b of the air duct 21 from the connection part 21d of the branch pipe 21c, and the connection part 21d is fixed to the main shaft 14a as shown in FIG. There is. Thereby, the other end of the air duct 21 is supported by the main shaft 14a of the steering handle 14.

On the other hand, a cover member 22 is attached to the handlebar 14b of the steering handle 14. As shown in FIG. 2, the cover member 22 includes a main cover 22a that covers the upper end of the steering handle 14 together with the large-diameter pipe 21b and both branch pipes 21c of the air duct 21;
It is comprised of a pair of left and right side covers 22b that cover the top, bottom, and front of a pair of left and right grip portions 14c that protrude from both sides of the main cover 22a. This cover member 22 covers the handlebar 1
It is fixed to the handlebar 14b at both side penetration parts of 4b, and is fixed to the large diameter pipe 21b of the air duct 21. Further, the tip of each branch pipe 21c of the air duct 21 opens into each side cover 22b from both sides of the main cover 22a.

Note that, in the middle of the bellows pipe 21a of the air duct 21, a discharge pipe 21e having a built-in switching valve is provided. This discharge pipe 21e opens near the discharge louver 11d provided on the cockpit side of the shroud 11, and the switching valve built in the discharge pipe 21e can be switched by operating the operating bar 21f from the cockpit side. It's becoming possible.

In the heating mechanism configured in this way, the air (warm air) heated by exchanging heat with the cylinder part 12 in the air shroud 13 is transferred to the exhaust pipe 21e.
When the cover member 22 is closed, the side covers 2 of the cover member 22 pass through the air duct 21 and from each branch pipe 21c.
2b, each handle grip part 14
This heats the area around the handlebar grip part 14c, and also warms each handle grip part 14c itself. Therefore, even during long tours in extremely cold weather, both the palm and the back of the hand gripping each handle grip portion 14c can be sufficiently warmed. In addition, if there is no need to warm the hands gripping each handle grip part 14c, the discharge pipe 21
The warm air discharged from the air shroud 13 is discharged from the discharge pipe 21e by operating the switching valve built in the air shroud 13.

In this embodiment, each side cover 22b covering each handle grip portion 14c is
Although an example has been shown in which the side covers 22b are formed in a shape that covers the top, bottom, and front of the handle grip portion 14c, each side cover 22b may be formed in a box shape that opens only on the rear side, as shown in FIG. Thereby, the area around each handle grip portion 14c can be heated more effectively. In addition, the heating mechanism according to the present invention covers the cylinder part of the engine with an air shroud having an outside air inlet and an outlet, and uses the outside air introduced into the air shroud by a cooling fan linked to the crankshaft to cool the cylinder. It can be applied to various types of snowmobiles equipped with a forced air-cooled engine that cools the engine.

As explained above, the present invention provides the various types of snowmobiles described above, in which the air duct, one end of which is connected to the exhaust port of the air shroud, is opened so that the other end side faces the vicinity of the handle grip portion of the steering handle. There is a characteristic of its composition. Therefore, according to the present invention, since the hand holding the handle grip is heated by the warm air discharged from the air duct opened near the handle grip, not only the palm of the hand but also the back of the hand can be sufficiently warmed. Further, according to the present invention, since the hand holding the handle grip is heated by the warm air from the air shroud, a special heat source for heating such as an electric heating wire is not required for heating. In addition, in the present invention, if the handle grip section is covered with a cover and the air duct is opened within the cover, the heating discharged from the air shroud can be reliably applied to the hand without being diffused outward, and the heating function can be activated. This can be further improved.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a snowmobile employing the heating mechanism according to the present invention, FIG. 2 is an enlarged perspective view of the heating mechanism,
FIG. 3 is an enlarged perspective view showing the relationship between the heating mechanism and the steering handle, FIG. 4 is a partial plan view of FIG. 3, and FIG. 5 is a partial perspective view showing a modification of the cover that covers the handle grip. . Explanation of symbols 10...Cooling fan, 11...Shroud, 13...Air shroud, 13a...Exhaust port,
DESCRIPTION OF SYMBOLS 14... Steering handle, 14c... Handle grip part, 21... Air duct, 21c... Branch pipe, 22... Cover member, 22b... Side cover.

Claims (1)

[Claims] 1. A forced air cooling type in which the cylinder part of the engine is covered with an air shroud having an outside air inlet and an outlet, and the cylinder part is cooled by the outside air introduced into the air shroud by a cooling fan linked to the crankshaft. A heating mechanism for a snowmobile equipped with an engine, characterized in that an air duct whose one end is connected to an exhaust port of the air shroud is opened so that the other end side faces near a handle grip part of a steering handle.