JPS6328811Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a water draining device for a switch device attached to a bar handle of a motorcycle or the like.

For motorcycles, bar handles are used, and switch devices such as headlights, horns, turn signals, etc. are installed between one end of the handle pipe and the grip, and the operation knobs of these switches are exposed to the outside. Therefore, when driving in the rain or parking in the rain,
When the vehicle is stopped, there is a risk that dust may enter the case of the switch device during car washing, etc., and there is also a risk that dust may enter.
In order to remove such moisture, a drain hole 53 is conventionally provided in the bottom 52 of the case 51 of the switch device, and the bottom 52 is formed flat, as shown in FIG. Therefore, the moisture accumulated in the bottom 52 of the case is dripped and discharged to the outside solely by the action of gravity, and it is difficult to expect sufficient drainage.

The present invention has been made in order to improve the conventional inconveniences as described above, and its purpose is to provide an air guide wall that bulges downward at the bottom of the switch case, and to open the air guide wall at the rear in the direction of travel. A hole is formed in the case to communicate with the outside, and when the case is running, the air guide wall increases the resistance of the air flow around this area to increase the flow velocity, lowering the pressure immediately behind the wall to create a negative pressure, and reducing the pressure immediately after the wall. To provide a water draining device for a switch device which improves the drainage effect by forcibly sucking and discharging moisture etc. from a hole.

Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a rear view of the switch device, Fig. 2 is a longitudinal side view of the same, and Fig. 3 is a diagram of only the main parts for explaining the operation. The handle pipes are stacked and tied together so as to be held by the upper and lower cases 2 and 3,
It is attached around the exposed end of the handle pipe in front of the handle grip.

A headlight changeover switch knob 4 is provided on the upper case 2 and is slidable in the front and back directions.The knob 4 is slid back and forth to operate a switch mechanism 6 built into the case via a knob plate 5 to switch between high beam and high beam. Switch low beam. Lower case 3
A push-type horn switch knob 7 is provided at the lower part of the rear surface, and when pressed, the contact 8 built into the case and the contact 7a thereof are brought into contact, thereby closing the alarm circuit and emitting an alarm. A turn signal switch knob 9 is provided above the knob 7 so as to be slidable in the left-right direction, and the knob 9 is connected to an operating section 12 of a turn signal switch mechanism 11 housed in the case 3 via a knob plate 10. . Such knobs 9, 7
Sliding slits and movement holes for the knob plates 10 and 5 of No. 4 and 4 are provided in the case, and moisture and dust enter the case through these slits and holes during rain.

In the traveling direction of the bottom piece 13 of the case 3 described above, it is assumed that the motorcycle etc. travels to the left in FIG.
A guide wall 14 protruding downward is provided at a rearward portion of the bottom piece 13 in the direction of movement, and the guide wall 14 is connected to the front surface 14a.
is curved from the bottom piece 13 and protrudes downward so as to be inclined rearward, the front face 14a and the lower end 14b extend rearward flatly, and a drain hole 15 is opened rearwardly above this, and the guide wall 14 is Bottom piece 13
This part of a is bent downward and molded integrally with it, so that a downstream inner wall 14c is formed on the inside of the wall 14 in a curved manner that hangs down in the direction of the drain hole 15, and this part extends over the entire bottom piece. As a result, a downward flow guide portion 16 is formed.

Next, to describe its function and effect, when a motorcycle or the like is running, the airflow from the front of the case 3 is absorbed by the bottom piece 1.
A guide wall 14 protrudes downward at this part, and the air flow is guided by the slope of the wall and flows through the wall front 14a and the lower end 1 as shown by the arrow.
4b to the rear. As a result, the airflow is accelerated and flows backward from the lower end 14b.
The upper part b, that is, the rear of the wall 14, has a negative pressure, and the water drain hole 15 provided in this area has a negative pressure, and the moisture inside is sucked out, and is sucked out from the water drain hole 15. It will be discharged.

Therefore, according to the present invention, unlike the conventional simple gravity type, water flowing from inside the bottom of the case due to gravity is forcibly sucked in and discharged by the negative pressure generated during driving, and the water is efficiently and quickly removed. etc. from inside the case, protecting the equipment inside the case from corrosion and rust, and providing a highly effective moisture draining structure.In addition, it is only necessary to provide a guide wall in a part of the bottom of the case, and it is possible to protect the equipment inside the case from corrosion and rust. It has many advantages, such as being easily moldable and being able to be implemented without requiring changes to the layout of the internal equipment.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 is a rear view of the switch device, FIG. FIG. 4 is a conventional explanatory diagram. In the drawing, 1 is the switch device, 3 is the case, and 13
14 is a guide wall, and 15 is a drain hole.

Claims (1)

[Scope of utility model registration request] In a switch device that is exposed to the outside of a running vehicle body such as a motorcycle and is installed in a position that receives at least the traveling wind from the front of the vehicle body, a switch mechanism is installed at the bottom of the case in which the switch mechanism is housed, and is inclined from the bottom toward the rear of the vehicle body. A guide wall consisting of a slope portion projecting downward and a horizontal portion extending toward the rear of the vehicle body from the tip of the slope portion is provided, and a drainage hole that opens toward the rear of the vehicle body is provided at the rear end of this guide wall. A water draining device for a switch device, which is characterized by: