JPS59549Y2 - Clamping of fuel pipes in agricultural machinery - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a clamp for a fuel pipe in an agricultural machine.

Generally, when disassembling and servicing agricultural machinery, the engine may be removed from the machine. At this time, it is necessary to remove the fuel pipe from the strainer or the strainer from the engine. In the former case, the fuel pipe must be removed from the strainer. This requires time and effort such as draining the fuel from the fuel tank in advance to prevent fuel from leaking during removal, and in the latter case, the strainer must be removed from the engine after tightening the strainer cock. In either case, it required time and effort.

The present invention was devised in order to eliminate the above-mentioned drawbacks, and is a clamp for tightening and fixing a fuel pipe to a strainer, etc. The above-mentioned clamp has a structure in which opposing plates are pivotally connected to each other at substantially central portions. Tightening to a strainer, etc., in which both ends of a ring-shaped member made of an elastic material are intersected and straddled between a clamp body and opposing sides of the clamp body with the above-mentioned pivot joint between them. and a fuel pipe cutoff part, and the cutoff part is configured to open in conjunction with the tightening of the tightening part and close in conjunction with the loosening of the tightening part, thereby allowing the fuel pipe to be removed from the strainer. To provide a clamp for a fuel pipe in an agricultural machine, which closes a cutoff part in conjunction with loosening of a tightening part to cut off a fuel pipe, thereby making it extremely easy to remove an engine from a machine body. It is something.

The configuration of the present invention will be described with reference to an embodiment shown in the drawings.

1 is the engine of the tiller 2, and 3 is a fuel tank.

A strainer 4 is attached to the engine 1 via a bracket 5, and fuel pipes 7.8 are connected between the strainer 4 and the fuel tank 3 and the carburetor 6, respectively.

Reference numeral 9 denotes a clamp for tightening and fixing the fuel pipe 7 to the strainer 4. Details of this clamp 9 will be explained below with reference to FIGS. 3 and 4.

10a and 10b are opposite plates,
These two plates 10a and 10b are pivotally connected to each other by a pin 11 at the center of the clamp body 10.
is formed.

A bolt 12 is inserted through one side of the clamp body 10, and this bolt 12 is screwed into the plate 10a, and is rotatably engaged with the other plate HOb. Plate 10 by rotating operation.
a, 10b can be rotated to open and close using a pin 11 as a fulcrum.

Reference numeral 13 denotes a washer that also serves as a lock for removing the bolt 12.

14 is a tightening part provided on one side of the clamp body 10 through which the bolt 12 is inserted; 15 is a fuel pipe 7 provided on the other side of the clamp body 10 sandwiching the pin 11;
The tightening part 14 and the blocking part 15 are made by bending a linear elastic material to form a ring-shaped member, and extend the both ends of the elastic material to cross each other. The ring-shaped members are respectively installed over the opposing peripheral sides of the fuel pipes 10a and 10b.

The ring-shaped portion of the tightening portion 14 is expanded by rotating the bolt 12 to the tightening side, that is, to the side that narrows the facing distance between the plays HOa and 10b.
It is contracted by rotating the bolt 12 to the relaxed side, that is, to the side that widens the facing distance between the plays HOa and 10b.

Moreover, the blocking part 15 of the clamp 9 has a play h 10 a,
10b, it expands in conjunction with the contraction of the tightening portion 14, and contracts in conjunction with the expansion of the tightening portion 14.

The clamp 9 configured as described above is in the state shown in FIG. It is inserted and attached to.

Then, the tip of the fuel pipe 7 and the tightening part 14 of the clamp 9 are attached to the mounting pipe 4a of the strainer 4, and after tightening, the bolt 12 is attached to the plates 10a, 10b as shown in the opening in FIG.
When the ring-shaped portion of the tightening portion 14 contracts, the fuel pipe 7 is tightened and fixed to the mounting pipe 4a.

At this time, although the blocking portion 15 of the clamp 9 is in the expanded state, the blocking portion 15 does not tighten the fuel pipe 7.

In addition, when removing engine 1 from the aircraft for engine maintenance, etc., as shown in Figure 4 C,
When the plates HOa and 10b are rotated to the side closer to the opposing distance, the ring-shaped portion of the tightening portion 14 is expanded to release the tightening of the fuel pipe 7, and the plate 10a on the blocking portion 15 side is rotated. , 10b increases, the ring-shaped portion of the blocking portion 15 contracts and the fuel pipe 7
The fuel pipe 7 is shut off by tightening and closing the fuel pipe 7.

Therefore, when the engine 1 is removed from the aircraft, the fuel in the fuel tank 3 is not drained, and leakage of fuel is prevented, thereby preventing the danger of fire and peeling of the paint.

In the above system, when removing the engine from the fuselage, the engine is separated using a clamp 9 at the connection between the strainer 4 and the fuel pipe 7.
The engine can also be removed by separating the strainer 4 from the engine, and in order to facilitate this separation, there is another method in which the clamp 9 of the present invention is used between the strainer 4 and the fuel pipe 8. An embodiment will be described below with reference to FIGS. 6 to 8.

Reference numeral 20 denotes a strainer mounting bracket, which is formed by bending an elastic material, and includes a bolt mounting portion 21 and a ring-shaped mounting portion 22.
It is composed of.

Then, the racket 20 is fixed to the engine 1 with bolts 23, and the groove-shaped engaging portion 4b formed on the upper part of the strainer 4 is engaged and held by the mounting portion 22.

Therefore, when removing the engine 1, tighten the cock 4C of the strainer 4, loosen the clamp 24 of the fuel pipe 8 on the carburetor 6 side, and expand the mounting part 22 of the bracket 20 to remove the strainer 4 from the engine 1. , the engine 1 can be easily removed from the fuselage without causing fuel leakage from the carburetor 6.

In addition, the bracket 20 formed of an elastic material does not allow engine vibrations to directly act on the strainer 4, as in the conventional case where the strainer is screwed into a steel plate bracket and the bracket is bolted to the engine. This provides vibration isolation and prevents cavitation from occurring.

In summary, the present invention provides a clamp for tightening and fixing a fuel pipe to a strainer or the like, and the clamp includes a clamp body in which substantially central portions of opposing plates are pivotally connected to each other; It is composed of a tightening part for a strainer etc. and a cutoff part for a fuel pipe, which are made by intersecting both ends of a ring-shaped member made of an elastic material between opposing sides of the fuel pipe. Since the shutoff part is configured to open in conjunction with the tightening of the clamping part and close in conjunction with the loosening of the clamping part, when removing the fuel pipe from the strainer when removing the engine from the aircraft, the clamping part When the clamp is loosened and the clamp is untightened, the shutoff part automatically closes and blocks the fuel pipe, thereby allowing special operations such as draining the fuel from the fuel tank in advance. Therefore, the engine can be removed from the aircraft extremely easily, and workability during maintenance can be significantly improved.

[Brief explanation of drawings]

The drawings show an embodiment of the clamp for the fuel pipe in the agricultural machine according to the present invention, in which Fig. 1 is an overall side view of the tiller, Fig. 2 is an enlarged side view of the engine section, and Fig. 3 is the clamp. 4A to 8C are action explanatory diagrams, FIG.
The figures show other embodiments of the present invention, in which Fig. 6 is a side view of the engine section, Fig. 7 is a perspective view of the main parts, and Fig. 8 is a perspective view showing an embodiment of the bracket. be. In the figure, 1 is the engine, 3 is the fuel tank, 4 is the strainer, 5 is the bracket, 6 is the carburetor, 7.8 is the fuel pipe, 9 is the clamp, 10 a, 10 b are the plates, 11 is the pin, 12 is the bolt , 14 is a tightening part, and 15 is a blocking part.

Claims (1)

[Scope of utility model registration request] In a clamp for tightening and fixing a fuel pipe to a strainer or the like, the above-mentioned clamp has a slump body in which substantially central portions of opposing plates are pivotally connected to each other, and both sides of the clamp body sandwiching the above-mentioned pivotally connected portions. It consists of a tightening part for a strainer etc. and a fuel pipe cutoff part, which are made by intersecting both ends of a ring-shaped member made of an elastic material and placed between opposing sides, and a cutoff part for a fuel pipe. A clamp for a fuel pipe in an agricultural machine, characterized in that the clamp is configured to open in conjunction with the tightening of the clamp and close in conjunction with the loosening of the clamp.