JPS5818463Y2 - Installation structure of electromotive part in engine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a mounting structure for an electromotive section in an engine, and in particular, the second iron core of the electromotive section is integrally molded and fixed to a stationary fuselage section, and the second iron core and rotation It can be securely held and installed with good functionality without having to separately adjust the gap with the magnet around the body, and the ignition coil and its core can be accurately attached to the fuselage, making it easy to attach the ignition coil and the first core. It is provided so that it can be attached and detached, and its inspection and repair can be carried out quickly and easily, and can be carried out suitably.

The embodiments shown in the drawings will be described below.

Figure 1 shows a sectional view of the main parts, 2 is the crankcase, 3
4 is a cylinder part, 4 is an engine shaft, 5 is a spark plug, and 6 is a fuel tank.

A rotating body 11 is mounted on the side of the crankcase 2, and the rotating body 11 is a fan pulley having a fan 11a, and is installed coaxially with the engine shaft 4.
It is constructed by attaching a magnet 10 around a rotating body 11.

Further, the fan cover 1 is fixedly installed so as to cover the outside of the rotating body 11, and cylindrical case parts 1a, 1a are integrally formed in two parts of the fan cover 1 that are close to the upper part of the rotating body 11. However, second iron cores 9, 9 are installed in both case parts 1a, la.
are integrally molded and mounted and fixed, and the tip portions 9a, 9a of both second cores 9, 9 and the magnet 1
The mounting structure is such that the gap between the

7 is an ignition coil, a first iron core 8 is inserted and fixed into the ignition coil 7, and both ends of the first iron core 8 are connected to side case parts 1a, la.
The fan cover 1 between the case parts 1a and 1a is provided so that it can be connected and connected to the second iron cores 9, 9 and can be removed by pulling it out when it is inserted into the upper notch 14.14 and fitted in a press-fit type. A bulging portion 1b into which the ignition coil 7 can be fitted is formed in the portion, and a cord 13 extending from the ignition coil 7 is connected to the spark plug 5.

FIG. 3 shows another embodiment, in which both ends of the first iron core 8 are connected to the second
It is configured to be connected to and connected to the upper part of the iron cores 9, 9 via screws 12, 12, and to be detachable.

In addition, the second iron cores 9, 9 can also be molded and fixed to a fixed body part such as the crankcase 2.

Therefore, since the second iron cores 9, 9 are molded in advance and attached and fixed to the fan cover 1 side, the second iron cores 9, 9
The gap between the tips 9a, 9a of 9 and the magnet 10 is constant during assembly and does not require adjustment, and when inspecting and repairing both ends of the first core 80 from the second core 9, 9 side. You can remove it and do it.

In this way, the present invention is configured such that the tips 9a, 9a of both second iron cores 9, 9 are attached to the magnet 10 attached around the rotating body 11 that rotates together with the engine shaft 4, and Both ends of the first iron core 8, which is inserted into and fixed to the ignition coil 7, are connected to the two second iron cores 9, 9 as appropriate, and a cylindrical case is attached to a fixed body part such as the fan cover 1 or the crankcase 2. Since the second cores 9, 9 are integrally molded and fixed to the case parts 1a, 1a, the magnets around the second cores 9, 9 and the rotating body 11 are The ignition coil 7 and the electromotive part consisting of its iron core can be accurately mounted to the fuselage, and the second
The ignition coil 7 and the first iron core 8 can be easily attached to and removed from the iron cores 9, 9, and inspection and repair thereof can be carried out quickly and easily, and has the feature that it can be carried out suitably.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the main part of an embodiment of the present invention, Fig. 2 is a view taken along the line X-X in Fig. 1, and Fig. 3 is another embodiment shown in the same manner as Fig. 2. . 7...Ignition coil, 8...First iron core,
9...Second iron core, 1...Fan cover, 4...Engine shaft, 10...
Magnet, 11...Rotating body, 9a...
・Tip.

Claims (1)

[Scope of utility model registration request] The attachment is configured such that the tips 9a, 9a of both the second iron cores 9, 9 are close to the magnet 10 attached around the rotating body 11 that rotates together with the engine shaft 4, and the two second iron cores 9, 9, both ends of the first iron core 8 inserted and fixed into the ignition coil 7 are connected and connected as appropriate, and cylindrical case parts 1a, 1a are provided on fixed body parts such as the fan cover 1 and the crankcase 2, This case part 1a,
A mounting structure for an electromotive part in an engine, characterized in that the second iron cores 9, 9 are each integrally molded and fixed to 1a.