JPS6233963Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fuel tank structure that is mounted close to a small engine or the like.

[Conventional technology]

This type of fuel tank structure is
As is clear from No. 1 and Utility Model Publication No. 57-24903, a hole for inspecting the engine plug is formed in the fuel tank by penetrating the fuel tank, and a lid can be fitted into and removed from the hole. It is inserted into. Particularly, in the fuel tank structure described in Japanese Utility Model Publication No. 57-24902, the tank bracket is fixed to the engine body with bolts, and the upper edge of the rising part formed around the tank bracket forms a part around the fuel tank. The bolts are tightened to the flange.

[Problems to be solved by the invention] In this configuration, the tank bracket is exposed to the outside, and the bolts are tightened on the outside, so the appearance is not very good. Furthermore, there is a risk that heat from the engine may accumulate in the central hole of the fuel tank, causing the fuel tank to heat up. Another drawback is that in order to guide the spark plug cord, a cord guide groove must be formed on the bottom of the fuel tank as long as the outer line.

The present invention was developed based on the above circumstances.The tank bracket is located only between the fuel tank and the engine, and can be installed without being exposed to the outside.Also, the opening/closing operation port of the lid body is recessed. ,
To provide a fuel tank structure in which air is removed from the fuel tank, and a space for guiding the spark plug cord is formed between the bracket and the bottom of the tank, thereby facilitating the lead-out of the cord under the bracket. It is.

[Means for solving problems]

For this purpose, the present invention provides a fuel tank in which a hole for inspecting the engine plug is formed in the fuel tank by penetrating the fuel tank, and a lid is fitted inside the hole, and the ignition is started at the bottom of the hole. A flange having an insertion hole through which the plug is passed is formed, a tank bracket is arranged on the engine side corresponding to the flange, and the bracket and the flange are tightened with bolts inside the hole, and A space for guiding a spark plug cord is formed between the tank brackets, and a recessed portion serving as an air vent is formed above the hole for opening and closing the lid.

〔Example〕

Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In the figure, reference numeral 1 denotes a fuel tank, which is formed in the fuel tank 1 with a hole 2 for inspecting the spark plug passing through the center, and inside the fuel tank 1, an opening 4 through which the plug 3 is passed is formed. A thick flange 5 is formed. Further, the flange 5 has a notch 4a in communication with the opening 4, through which the cord 6 of the plug 3 can be inserted. At the upper end of the hole 2,
A lid body 7 is fitted, and the lid body 7 is made of synthetic resin, and the ring part 7 is fitted through a thin neck part 7a.
b, and is equipped with a fuel supply port 8 of the fuel tank 1.
With the ring part 7b fitted to the mouth edge 8a, the neck part 7a can be bent and extended to open and close the hole part 2. The ring portion 7a is prevented from coming off by a cap 9 screwed onto the fuel supply port 8. Further, an opening/closing operation port 10 for opening and closing the lid 7 is connected to the fuel tank 1.
It is recessed in the top of the hole 2 and communicates with the inside of the hole 2, functioning as an air vent.

A recess 2a is formed on the lower side of the hole 2 for positioning, into which the corresponding protrusion 11a of the tank bracket 11 is fitted, and the tank bracket 11 and flange 5 are connected to each other. A bolt 12 is tightened within the hole 2 at the contact point. Further, the tank bracket 11 has a cord 6 corresponding to the notch 4a.
A recess 11b is formed through which the holder is inserted. Also,
A buffer felt 13 is attached to each end of the bracket 11, and enters a recess 14 formed corresponding to the bottom of the fuel tank 1 to elastically support the bottom of the tank 1.

In the figure, reference numeral 15 indicates a bolt insertion hole for fixing the tank bracket 11 to the engine body 16, and 17 indicates a bolt insertion hole for fixing the fuel tank 1 to the engine so that the tank bracket cannot be seen from the side.
It is a bulge formed at the bottom of the

In such a configuration, the tank bracket 11 is located at the top of the engine body 16, and the fuel tank 1
Although it serves as a mounting point, it cannot be seen from the outside. Therefore, only the fuel tank 1 and the engine body 16 are visible, preserving the aesthetic appearance. Bolts are tightened inside the hole 2. It can be achieved. In addition, even if the air inside the hole 2 becomes overheated due to engine heat during use, the air escapes from the opening/closing operation port 10 for opening the lid 7, so outside air is brought in from the bottom of the tank, preventing heat buildup. do not have. Further, the cord 6 of the spark plug 3 is connected from the hole 2 to the notch 4a to the recess 1.
Since it is easily led out under the bracket 11 via 1b, there is no need to form a long guide groove on the bottom of the tank.

Further, in this embodiment, since the recess 2a is formed, when the tank is attached to the engine, the setting position is automatically determined to match the shape of the protrusion 11a of the bracket 11. There is no need for trouble such as positioning at the time.

[Effect of idea]

As described in detail above, the present invention allows the tank bracket to not be exposed to the outside and also serves as a connection between the tank and the engine, thereby maintaining the aesthetic appearance, and the opening/closing operation port of the lid body is connected to the air vent. Since it also serves as a shield, overheating of the air in the hole can be avoided, and the cord of the spark plug can be easily derived, which has many practical effects.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view showing an embodiment of the present invention;
2 is a plan view of the same, FIG. 3 is a bottom view of the same, FIG. 4 is a longitudinal sectional side view of the same, FIG. 5 is a plan view of the tank bracket, and FIG. 6 is a longitudinal sectional side view of the same. 1... Fuel tank, 2... Hole, 3... Plug, 4... Opening, 5... Flange, 6... Cord, 7... Lid, 8... Fuel supply port, 9... Cap, 10... Opening/closing operation port, 11... Tank bracket, 12... Bolt, 13... Felt, 2
a... recess, 4a... notch, 7a... neck, 7
b...Ring part, 8a...Edge part, 11a...Protrusion part, 11b...Recessed part, 14...Recessed part, 15...
Bolt insertion hole, 16...Engine body, 17...
Bulge.

Claims (1)

[Scope of utility model registration request] A hole for inspecting the engine plug is formed in the fuel tank by penetrating the fuel tank, and a lid is inserted inside the hole, the flange having an insertion hole for passing the spark plug on the lower side of the hole. A corresponding tank bracket is arranged on the engine side, and the bracket and the flange are fastened with bolts inside the hole, and the spark plug cord is inserted between the lower side of the hole and the tank bracket. 1. A fuel tank structure characterized by forming a space for guiding the fuel tank, and forming a recessed part which also serves as an air vent at the opening/closing operation port of the lid body above the hole.