JPH0413405Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field This invention is arranged in parallel with a vaporizer, and a lid body for opening and closing an opening of the housing is pivotally attached to one side of a housing for storing excess material. A hollow guide formed at the lower part of the body is made to freely face an openable closing body stretched over the upper end of a communication pipe interposed between the housing and the fuel tank, and the lid body is opened. A two-stroke system that allows fuel to be injected into the fuel tank below the communication pipe by inserting the guide into the blocker, omitting the cap in conventional fuel tanks, and making fuel injection easier and more reliable. This relates to an air purifier for engines.

(b) Conventional technology Since the cap of the fuel tank attached to the engine is usually small, care is taken to prevent fuel from spilling outside the fuel tank, and the fuel is injected from the carburetor to the side of the air purifier. There is a blowback of fuel towards the

(c) Problems that the invention aims to solve When filling fuel into a fuel tank, a funnel or fuel pump is usually used to prevent the fuel from flowing out of the tank, but if these devices are not available, As mentioned above, since fuel was injected into the fuel tank in small quantities to avoid spilling, it was inevitable to waste time and worry, and if the fuel spilled outside the fuel tank, it would not be necessary to wipe it up. When driven by an engine, it is dangerous to cause unexpected ignition.Furthermore, in order to prevent the above-mentioned blowback, a separate prevention plate is installed, but this complicates the structure of the carburetor or air purifier. The problem is that

(d) Means for solving the problem This idea was made by paying attention to the problem as mentioned above, and it is arranged in parallel with the carburetor and has a horizontal U-shaped cross section on one side to store the excess material. A lid body having a substantially L-shaped cross section that opens and closes the opening of the housing is pivotally mounted, and a hollow guide projecting downward from the lid body is stretched over the upper end of the communication pipe interposed between the housing and the fuel tank. By making it possible to insert and remove the lid into the openable closing body provided therein, and by inserting the guide into the closing body when the lid is opened, fuel can be injected into the fuel tank below the communication pipe. This eliminates the need for a cap in the fuel tank and allows fuel to be easily and reliably injected.

The air cleaner A according to this invention will be explained below with reference to the drawings. In FIG. 1, a casing V having a horizontal U-shaped cross section for storing the overfill material f is juxtaposed on one side (here, the left side) of the carburetor C connected to the cylinder Z via the insulator 1, and the casing V The opening 3 of the casing V can be opened and closed by a lid body B having a substantially L-shaped cross section, whose one end (in this case, the right side) is pivotally attached to a support shaft 2 installed below the casing V. fuel tank T
A closure body 5 consisting of a pair of opposing pieces e ₁ and e ₂ of flexible material such as rubber or synthetic resin is fixed and stretched on the upper end of the communication pipe 4 interposed between the As shown in Figure 3, make sure the top edges are in close contact with each other.
The guide 6 is made to protrude outward from approximately the center of the horizontal portion h at the lower end of the lid B, integrally with a hollow guide 6, when the lid B is opened (the solid line position in FIG. 1).
The center of the upper surface of the closing lid 5 is pressed and opened, and the fuel d in the fuel container 7 can be injected into the fuel tank T via the inner wall surface i of the lid B and the guide 6. In addition, the protruding piece 8 at the upper end of the lid body B is made to face the locking piece 9 above the housing V so as to be freely engageable and detachable.

(E) Effect In this invention, when injecting the fuel d from the fuel container 7 into the fuel tank T, when the lid B is set to the solid line position in FIG. 1 and the opening 3 of the housing V is left open, The guide 6 below the lid B presses and releases the blowout contact portions of the pieces e ₁ and e ₂ in the closure body 5 to the left and right, and the fuel tank T and the guide 6 are communicated with each other, so that the fuel d from the fuel container 7 is is connected to the fuel tank T via the inner wall surface i of the lid B, the guide 6 and the communication pipe 4.
It will fall and be injected into the interior. Furthermore, when closing the lid B (that is, when the projection piece 8 engages with the locking piece 9), the guide 6 separates from the closing body 5.
Pieces e ₁ and e ₂ in the closure body automatically become in the state shown in Figure 3, and in order to block the upper end of the communication pipe 4, the fuel tank T is placed under the same state as when the cap is tightly fitted. , therefore, a cap for the fuel tank T is unnecessary.

(F) Effect According to this invention, a lid body is pivotally attached to one side of the housing housing the excess material, and when the lid body is opened, the closing body stretched over the upper end of the communication pipe communicating with the fuel tank is By pressing and opening with the guide of the lid,
The fuel tank can be communicated with the lid, allowing for easy and reliable injection and storage of fuel from the fuel container into the fuel tank via the lid, guide, and the ability to prevent fuel from flowing out to the outside of the fuel tank, preventing accidents caused by ignition. In addition to avoiding the risk of losing the cap in conventional fuel tanks, which required the presence of a cap, the user does not have to worry about losing the cap. This eliminates the need to hold the cap in the open position, which eliminates the complication of handling it.Furthermore, it is convenient because it allows the air purifier to function as a cap, and when the lid is closed, the vaporizer When the lid is opened, the fuel stored on the lid side due to blowback can be recovered into the fuel tank through the guide again, which is economical in terms of fuel consumption. Because it can prevent the backflow of
This has practical benefits such as there is no risk of fuel leaking to the outside of the casing.

(e) Embodiment A vaporizer C is fixed via a cylindrical insulator 1 to the suction port s of a cylinder Z in which a piston P having a movable and connected connecting rod 10 is slidably and tightly fitted. Attach the push button 12 to the lower end of the body 11 in the device C with the spring 1
3, the diaphragm 14 whose outer periphery is fixed is stretched in the middle of the space, and a main adjustment screw 15 is inserted into the through hole m communicating with the space.
into the insertion hole g that is perpendicular to and communicates with the through hole m, and insert the jet needle n so that it can move up and down.
On the seat 16 fixed to the upper end of this jet needle n,
Striate body connected to the lower end of throttle wire _W1
W ₂ are connected. The seat 16 is integrally housed inside a piston 17 having a substantially U-shaped cross section with an inclined bottom R and an open top end.
The upper surface of this seat 16 and the throttle wire
An elastic body u such as a coil spring is stretched between the recess q of the cover 19 into which the covering body 18 that covers W ₁ is fitted and fixed, so that it is always integral with the piston 17. The upper end opening of the upright guiding wall 20 which springs and urges the seat 16 downward and into which the piston 17 is slidably and tightly fitted is fitted and tightly fitted into the inner peripheral edge of the recess q of the cover 19. It has been done. The overfill material f, which is held between the upper and lower holding pieces 21 and 22 in the casing V having a substantially horizontal U-shaped cross section and arranged side by side (on the left side in FIG. 1) of the carburetor C, is closed with a pressing member 23.・This presser member 23 can be stored.
A suitable number of air inlets r are arranged in parallel and perforated on the adjacent side edges (see Fig. 2), and near the upper end of the casing V,
A locking piece 9 that locks the protrusion piece 8 on the upper end of the lid B
is installed. The lower part of the lid body B, which has a substantially L-shaped cross section, is pivotally connected to the support shaft 2 installed below the clamping piece 22, so that the opening 3 of the housing V can be opened and closed;
Note that a guide 6 is integrally projected from the center of the lower end. In addition, a female thread is carved below the holder 25 which is placed and fixed on the bending part 24 at the lower end of the housing V, and the upper end of the communication pipe 4, which has a male thread J to be screwed into this female thread, is bent slightly inward. The supporting piece y and the holding body 25
A pair of opposing pieces e ₁ and e 2 made of a flexible material such as rubber or synthetic resin are sandwiched between them, and these pieces e ₁ and _{e 2 are} closed by the lid B. When the cover B is placed in the open position (solid line position in Fig. 1), they are in close contact as shown in Figure 3, and when the lid B is placed in the open position (solid line position in Figure 1), It can be pressed and released. A fuel tank T is provided at the lower end of the communication pipe 4, either integrally or by flange connection, and when the lid B is opened, fuel d from the fuel container 7 is injected into the fuel tank T via the guide 6 and the communication pipe 4.・It is possible to store it.

Note that although the air intake port r is bored in the housing V, the air intake port r is not limited thereto, and may be bored in the outer edge of the lid body B.

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; Fig. 1 is a vertical cross-sectional view of the main part during use, Fig. 2 is an enlarged front view of the lid and the casing, and Fig. 3 is an enlarged longitudinal sectional view of the vicinity of the closure body. be. A... Air purifier, B... Lid, C... Carburetor, T... Fuel tank, V... Housing, Z... Cylinder, e ₁ , e ₂ ... Piece, s... Inlet , 3...
Opening, 4... communicating pipe, 5... closing body, 6... guide.

Claims (1)

[Scope of claims for utility model registration] (1) Carburetor C communicating with suction port s of cylinder Z
In a two-stroke engine in which an air purifier A is arranged side by side, a lid body B having an approximately L-shaped cross section for opening and closing an opening 3 of the housing V is mounted on one side of a housing V having a generally horizontal U-shaped cross section for storing an excess material f. The hollow guide 6 below the lid B can be inserted into and removed from an openable and closable closure body 5 stretched over the upper end of the communication pipe 4 interposed between the housing V and the fuel tank T. An air purifier for a two-cycle engine (2) in which the closing body 5 is opened when the lid body B is opened.The closing body 5 is a pair of opposing pieces of flexible material.
An air cleaner for a two-stroke engine according to claim ₁ , which is formed of e 1 and e ₂ .