JPS588940Y2 - starter - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a starter for driving an engine, and particularly relates to an improvement in the water drainage structure of the starter.

Generally, the transmission case of a vehicle is sealed,
If the vehicle is driving in deep water or if the transmission case is not completely sealed, water will seep into the inside of the transmission case, that is, the ring gear side, while the vehicle is running, and the ring gear will scoop up the water. Accumulates inside the starter.

As a result, the starter's yoke and bracket become rusted, or moisture accumulates inside the starter, causing the armature coil, field coil, and field core to become rusty, leading to malfunction of the starter. was causing

Conventionally, there have been devices shown in FIGS. 1 and 2 to solve the above-mentioned problems.

That is, in FIGS. 1 and 2, reference numeral 1 denotes a front bracket made of cast metal, which has a large diameter 10,000 cylindrical opening 1a, another cylindrical opening 1b with a smaller diameter than this cylindrical opening 1a, and a front bracket 1 made of cast iron. A notch opening 1c is formed into which the engine ring gear that does not fit is inserted.

2 is the cylindrical opening 1a of the front bracket 1;
3 is a solenoid switch fitted into the other cylindrical opening 1b of the front bracket 1; 4 is a cylindrical opening 1a of the front bracket 1;
This groove is formed on the end surface, and is formed linearly from the inner circumference to the outer circumference, and forms a drain port between the groove and the open end of the solenoid switch 3.

Reference numeral 5 denotes an engine housing to which a starter consisting of the motor part 2, the solenoid switch 3, and the front bracket 17) is mounted.

That is, in this conventional device, the front bracket 1
At the fitting part with the solenoid switch 3, a linear groove 4 is formed at one point on the circumference from the inner circumference to the outer circumference, and a water drain is formed between this groove 4 and the open end surface of the solenoid switch 3. I'm trying to form a hole.

Therefore, water that has entered through the opening 10 and the like of the front bracket 1 is discharged to the outside through the water drain hole described above.

However, since this drain hole is penetrated linearly in the radial direction, water, dust, etc. from the outside can enter the starter through the drain hole while the vehicle equipped with the starter is running. This has caused abnormal wear due to rust on various parts of the starter or adhesion of dust, etc., leading to failure of the starter.

This invention provides an excellent starter that overcomes the above-mentioned drawbacks.

An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

That is, in the figure, reference numeral 6 denotes a groove formed in the cylindrical opening 1b of the front bracket 1, which is bent in the radial direction and forms a drain port between it and the open end of the solenoid switch 3. Configure.

Furthermore, when the starter configured as described above is mounted on a vehicle, it is arranged so that the above-mentioned drain port is located at the bottom (as shown in FIG. 4).

That is, if configured as described above, the starter motor part 2
Water that has entered the interior falls downward and is easily drained from the bent drainage port.

In addition, water, dust, etc. from the outside come into contact with the bent part of the drain,
The amount entering the starter will be reduced.

Moreover, the groove 6 that constitutes the drain port is located on the front bracket 1.
Since it can be formed at the same time as the molding process, no effort is required.

As described above, in this invention, a curved exhaust groove is provided on the side surface of the cast metal front bracket where the solenoid switch fits, and the inside and outside of a part of the starter motor are penetrated through this exhaust groove. Water, dust, etc. can be prevented from entering the exhaust groove from the outside, and the bent exhaust groove can be easily formed when molding the front bracket, so a highly reliable starter can be easily provided.

[Brief explanation of drawings]

Figure 1 is a front view of the conventional device, and Figure 2 is the ■- of Figure 1.
3 is a sectional view showing a main part of an embodiment of this invention, and FIG. 4 is a front view showing a state in which the starter according to the embodiment of FIG. 3 is installed. In the figure, 1 is a front bracket F, 1 a 11 b is a cylindrical opening, 1 c is a notch opening, 2 is a part of the motor, and 3
is a solenoid switch, 4 and 6 are grooves, and 5 is an engine housing. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] In a vehicle having a front bracket made of cast iron that is attached to the engine housing, a solenoid switch and a part of the motor that are each integrally attached to the front bracket, a bent exhaust groove is provided on the side surface of the front bracket where the solenoid switch is fitted. A starter characterized in that the starter is provided with a groove that penetrates the inside and outside of a part of the motor through the groove.