JPS584765Y2 - Cover fixing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cover fixing device, particularly to a cover fixing device for a bong kit to be opened in a tiller.

-) Crane In general, as shown in FIG. 1, a Masuwa machine 1 has an engine 3 mounted in front of a body 2, and a bonnet 5 provided to cover the upper and upper side of the engine 3.

The bonnet 5 is pivoted at its front portion, and by rotating upward about this pivot point 6, the engine 3 can be easily repaired or inspected.

In addition, a fixing device 7 made of a bolt is provided at the rear of the bonnet 5.
is provided, and is closed and fixed by tightening this fixture 7 to a nut of a mounting plate provided on the fuel tank 8.

Therefore, vibrations from the engine 3 are not buffered and are directly propagated to the bonnet, causing bonnet vibrations and noise.

In addition, to prevent this, fixing devices have been proposed in which an elastic material is interposed in the bonnet, but in both of these devices, when the bonnet is tightened and fixed with bolts, the elastic material is also compressed at the same time. First, it not only significantly impedes the vibration-proofing function of the elastic material, but also rapidly deteriorates the elastic material itself, causing problems in its durability.

Therefore, in the present invention, a locking member such as a pin is fixed to the fixture, the elastic material is held by the locking member, and when the fixture is tightened, the locking member comes into contact with the mounting plate and directly It is an object of the present invention to provide a cover fixing device which is constructed so that no tightening force is applied to the elastic material, thereby preventing the generation of vibration and noise, and which has excellent durability.

Hereinafter, an embodiment of the present invention will be described based on FIG.

The cover 5, which is a bonnet, is pivoted at one end to the fuselage and can be opened and closed, as in the conventional example described above.

A hole 9 is bored in the other end of the cover 5, and two elastic members 10, 1 each having a hole are aligned with the hole 9.
(Fixing tools 11 are inserted between the upper and lower surfaces of the cover 5 and into the aligned holes so as not to contact the holes 9.

The fixture 11 has a grip part 12 made of synthetic resin or the like and a threaded part 13, and a pin hole is bored in the middle thereof.

Therefore, the washer 15 is inserted through the threaded portion 13, and this washer 1
5 and the lower surface of the grip part 12, sandwiching the two elastic members 10 and 10 with the cover 5 sandwiched between them, and inserting the roll pin or parallel pin 16 into the pin hole 1, the fixing tool 11
is rotatably attached to the cover 5.

On the other hand, a mounting plate 1 is attached to a fuel tank 8 provided in the aircraft.
7 is fixed, and the mounting plate 17 has a mounting screw fitting 18.
is fixed.

Since the present invention has the above-described configuration, the cover 5 is closed by rotating the grip portion 12 of the fixture 11 and screwing the threaded portion 13 into the mounting screw fitting 18.

At this time, when the fixture 11 is screwed in by a predetermined amount, the mounting plate 17
The upper surface of the roll pin 16 is in contact with the roll pin 16 inserted into the fixture, and further screwing is prevented.

Furthermore, since the elastic material 10 is slightly compressed and held, the fixture 11 does not move blindly even when the vibration of the aircraft body occurs, and the screw connection of the fixture 11 to the mounting screw fitting 18 loosens and does not cause rattling. Never.

In addition, in order to open the cover 5, hold the fixture 11 at the grip part 12.
This is done by rotating the fixture 11 in the opposite direction to that described above and unscrewing the fixture 11 from the mounting screw fitting 18.

At this time, even when the cover 5 is open, the fixture 11 and the two elastic members 10 and 10 are attached to the washer 15 and the roll pin 1.
6 or the like, so it will not fall off.

As explained above, according to the present invention, even when the cover 5 is fixed by the fixture 11, since the elastic material 10.10 is interposed on both the top and bottom surfaces of the fixing device, vibration propagation due to the engine etc. is buffered. This prevents vibration and noise from occurring when the cover is pressed.

Furthermore, even when the fixing device 11 is tightened, the elastic members io, io are not compressed, and the effect of preventing vibration and noise is effectively prevented. In addition, damage to the elastic material 10 due to repeated compression can be prevented, and a cover fixing device with excellent durability can be obtained.

[Brief explanation of drawings]

FIG. 1 is a side view showing a tiller TF4 to which the present invention can be applied;
FIG. 2 is a sectional view showing the bonnet fixing device. 1... Tiller, 5... Cover (bonnet), 10
... Elastic material, 11... Fixture, 16... Locking member (pin), 17... Mounting plate.

Claims (2)

[Scope of utility model registration request] (1) A locking member such as a pin is fixed to the fixture attached to the cover via an elastic member, and the locking member holds the elastic member and the fixture is A cover fixing device configured so that when tightened, the locking member comes into contact with the mounting plate and no tightening force is applied directly to the elastic material. (2) The fixing device according to claim 1, wherein the cover is a bonnet of a tiller.