JPS5833229Y2 - Engine auxiliary equipment mounting device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a device for attaching engine auxiliary equipment such as an alternator, air pump, vacuum pump, and cooler compressor to an engine body. The two lug pieces that sandwich the boss are integrally protruded from the engine auxiliary equipment, and the two lug pieces and the mounting are done by inserting a through bolt into the boss. The purpose is to enable the lug to be reliably and firmly attached to the machine without damaging it.

Next, an example of the present invention will be explained with reference to the drawings. In the drawings, 2 indicates a boss with a bolt hole 3 integrally protruding from the crankcase, cylinder block, gear case, etc. of the engine body 1, and 4 indicates the boss 2. The figure shows engine auxiliary equipment such as an alternator, air pump, vacuum pump, and cooler compressor that are attached to the engine auxiliary equipment 4. The right ear piece 5 has a bolt hole 7 of approximately the same diameter as the bolt hole 3 of the boss 2, and the left ear piece 6 has a bushing 8. A nut is slidably inserted in the axial direction of the bolt holes 3 and 7 described above, a bolt 9 passing through the bush 8 and both bolt holes 3 and 7 is inserted, and a nut is screwed onto one end of the bolt 9. 1
0, the outer diameter of the bushing 8 slidably fitted into the left ear piece 6 is the outer diameter d of the washer 12 interposed between the head 11 of the bolt 9 and the bushing 8. It is formed larger than the

In this way, if the outer diameter of the bushing 8 slidably fitted into the left ear piece 6 is configured to be larger than the outer diameter d of the washer 12 of the head 11 of the bolt 9, the washer 12 of the bolt 9 can be There is no contact with the left lug 6, and the tightening force of the bolt 9 always acts only on the bush 8, so that only the right lug 5 is connected to the boss 2.
Since it can be tightened to Due to machining errors, the washer may come into contact with the lug before the bushing contacts the boss, or the bushing may be crushed and deformed in the axial direction, causing the bolt tightening force to act on both lug pieces at the same time, causing damage to either one of the lug pieces. There is no damage to the ear piece, and the outer diameter of the bushing 8 can be adjusted to the washer 1.
The washer 12 of the bolt 9 is made larger than the outer diameter d of the bolt 9.
Since the contact area between the bush 8 and the bush 8 and the contact area between the bush 8 and the boss 2 are increased, when the bolt 9 is fastened, the contact surfaces of both liquids are not crushed and deformed.

In other embodiments in this case, the length of the bush 8 is shortened and all or most of the head 11 and washer 12 of the bolt 9 are sunk into the lug 6 to reduce or eliminate the amount of protrusion. Alternatively, the head 11 of the bolt 9 may be brought into direct contact with the bushing 8 by eliminating the washer 12, or the nut 10 may be brought into contact with the bushing 8 either directly or through the washer 12. It's never been that good.

Therefore, according to the present invention, when installing an engine auxiliary device such as an alternator to the engine body, the two ear pieces integrally protruding from the engine auxiliary device can be prevented from being damaged due to dimensional errors or crushing deformation of the bushings as in the conventional case. Because there is no
The installation does not require special techniques such as tightening nuts during operation, and has the effect of being extremely easy, reliable, and strong to install.

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional front view of the present invention, Figure 2 is ■-1 of Figure 1.
It is a 1-view sectional view. 1...Engine body, 2...Boss installation, 4...Engine auxiliary equipment, 5, 6...
Ear piece, 9... Bolt with head, 10...
Nuts, 12...washers, 8...butshu.

Claims (1)

[Scope of utility model registration request] For installation on the engine body, two lug pieces that sandwich the boss are integrally protruded from the engine auxiliary equipment. An engine auxiliary equipment mounting device consisting of a bushing formed with a larger diameter than the head of the bolt or the outer diameter of the washer or nut, which is slidably inserted in the axial direction of the bolt into the bolt penetration point in one of the ear pieces. .