JPH0221637Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a fuel tank support structure for a portable engine-driven power generator that can be carried around by hand.

Conventionally, for example, in portable engine-driven power generators, vibrations transmitted from the engine to the mount,
In order to prevent the supporting portion of the fuel tank from being damaged and the vibrations from propagating to the liquid within the tank, the tank is elastically supported by the mount. A specific example thereof will be explained with reference to the drawings.

FIG. 1 is a schematic perspective view of a conventional portable engine-driven power generator. In this figure, 1 is a pedestal;
Reference numeral 2 denotes a device main body installed on the bottom of the pedestal 1. 3 is a fuel tank, which is placed on the main body 2 of the device, and is connected to the four metal pipe frames 4 of the mount 1.
is supported by Note that Japanese Utility Model Publication No. 57-24900 shows a portable engine-driven power generating device having such a configuration.

FIG. 2 shows a support structure that supports the four corners of the fuel tank 3 on the pipe frame 4. The fuel tank 3 shown in this figure is made of synthetic resin, and has a flange 3a integrally formed on its outer periphery. This flange 3
An elastic body 5 is attached to a, and this elastic body 5 is supported on a bracket 6 welded to the pipe frame 4. Further, the elastic body 5 is connected to the bracket 6 by a connecting pin 7 passing through its center, and the connecting pin 7 is prevented from coming off by a washer 8 and a grip 9.

FIG. 3 shows another conventional elastic support structure. In this figure, an elastic body 5 is attached to a bracket 6 of a pipe frame 4. fuel tank 3
is made of synthetic resin, and a connecting pin 7 is vertically insert-molded at the corner of its lower surface. fuel tank 3
is supported on the upper surface of the elastic body 5 by inserting the connecting pin 7 through the center of the elastic body 5, and is subject to horizontal position control. Further, the connecting pin 7 is prevented from coming off by a washer 8 and a split pin 10.

In each of the above configurations, since the fuel tank 3 is supported via the elastic body 5, the device main body 2 in FIG.
Vibration transmission from an engine (not shown) incorporated in the fuel tank 3 is effectively blocked by the elastic body 5.

However, in either configuration, the number of parts is large, and moreover, cotter pins and clips with low workability are required, which lengthens the assembly time and increases the number of man-hours.

On the other hand, the fuel tank 3 shown in FIG. 4 is made of sheet metal, and its inner surface is galvanized for corrosion prevention. Therefore, welding means that would cause peeling of the galvanizing cannot be applied to join the sheet metal members 3b, 3c, and the sheet metal members 3b, 3c are joined by double seaming. Furthermore, since it is difficult to provide a pin or drill a hole in the double-wound joint 3d as shown in the figure, such a special joint 3d is used as a flange, and a flange as shown in Fig. 2 is used. It was not possible to apply an elastic support structure.

This idea was devised in view of the above-mentioned disadvantages, and aims to reduce the number of parts, man-hours, and assembly time, as well as to create a fuel tank support structure that can be easily applied to fuel tanks with specially shaped flanges. is intended to provide.

Hereinafter, embodiments of this invention will be described based on the drawings.

FIG. 5 shows an embodiment of this invention. In this figure, a fuel tank 3 has a flange 3a on its outer periphery, and an elastic body 5 is fitted onto this flange 3a. The pedestal 1 is divided into two parts, a lower pedestal 1a and an upper pedestal 1b, and a lower pipe frame 4a and an upper pipe frame 4 of the pipe frame 4 of the pedestal 1.
b includes a pair of vertically opposed brackets 6;
a and 6b are provided. Furthermore, as shown in FIG. 6, insertion holes 12 for bolts 11 are provided in the lower pipe frame 4a in the radial direction. A screw hole 1 is inserted in the radial direction from the bottom of the upper pipe frame 4b.
A connecting rod 13 provided with a connecting rod 3a is provided in a protruding manner.

Note that the fuel tank 3 is not limited to being made of synthetic resin, and may be made of sheet metal.

In assembling the above structure, first, the elastic body 5 attached to the fuel tank 3 is supported on the bracket 6a of the lower pipe frame 4a. Thereafter, the connecting rod 13 of the upper pipe frame 4b is fitted into the lower pipe frame 4a, so that the upper pipe frame 4b is connected and supported by the lower pipe frame 4a, and the elastic body 5 is connected to the bracket 6b of the upper pipe frame 4b. The upper surface of the bracket is pressed appropriately, and the elastic body 5 is held between the brackets 6a and 6b. Then, the bolt 11 is screwed from the insertion hole 12 of the lower pipe frame 4a into the screw hole 13a of the connecting rod 13, thereby fixing the upper pipe frame 4b to the lower pipe frame 4a.

Tank support structure 14 shown in FIGS. 5 and 6
are provided on each of the four pipe frames 4 to elastically support the four corners of the fuel tank 3, as shown in FIG.

By the way, as shown in Fig. 9, the pipe frame 4
Other flanges 41, 42 are welded to the upper and lower pipe frames 4a, 4b, and the bolts 43 are tightened in the axial direction S of the pipe frame 4.
It is also conceivable to connect 4b. However, in this case, the flanges 41, 42 and the bolts 43 protrude outward from the pipe frame 4, leading to an increase in the size of the portable engine-driven power generation device, which should originally be small. In contrast, this invention has the insertion hole 12 of the lower pipe frame 4a in FIG. 6 and the connecting rod 1.
No. 3 screw holes 13a are both formed in the radial direction. Therefore, unlike the case in FIG. 9, the flange 4 protrudes outward from the pipe frame 4.
1,42 is not required, and as shown in Figure 5,
Since the head of the bolt 11 only protrudes slightly, the portable engine-driven power generator can maintain its compact size.

FIG. 8 shows another embodiment of this invention, that is, an elastic support structure in which the fuel tank 3 is made of sheet metal and the sheet metal members 3b and 3c are joined to each other by double seaming. In this example, the elastic body 5 is fitted to the double-sealed joint 3d of the sheet metal members 3b, 3c, while the brackets 6a, 6b.

In the configuration shown in FIG. 8, the double-sealed joint 3d of the sheet metal members 3b and 3c does not require any machining or welding work, and this joint 3d can be easily used as a flange for supporting the tank. .

As can be seen from the above explanation, the support structure for the fuel tank of the portable engine-driven power generator according to the present invention does not require time-consuming cotter pins or clips when assembling it, and the accompanying washer etc. Since this also eliminates the need for parts, the number of parts and work hours are reduced, and assembly time is also shortened. Furthermore, the flange of the fuel tank is not limited to a general flat plate type, but has the effect that it can be easily applied to a special type formed by double seaming or the like.

In particular, the bolt insertion holes in the pipe frame and the threaded holes in the connecting rod are provided in the radial direction to prevent the flanges and bolts from protruding too far outside the pipe frame. can maintain its compact size.

[Brief explanation of the drawing]

Figure 1 is a schematic perspective view of a conventional mount, Figures 2 and 3 are partially cutaway side views of a conventional fuel tank support structure, Figure 4 is an explanatory diagram of the special flange of the fuel tank, and Figure 5. 6 is a partially cutaway side view showing an embodiment of this invention, FIG. 6 is a partially exploded side view of FIG. 5, and FIG.
Figure 8 is an overall schematic plan view of one embodiment of this invention, Figure 8 is a partially cutaway side view showing another embodiment of this invention, and Figure 9 is support for a fuel tank not included in this invention. FIG. 3 is a partially cutaway side view showing the structure. 3... Fuel tank, 4, 4a, 4b,... Pipe frame, 5... Elastic body, 6a, 6b... Bracket, 11... Bolt, 12... Bolt insertion hole, 13a... Screw hole.

Claims (1)

[Scope of utility model registration request] The four pipe frames are divided into upper and lower parts, and a connecting rod is provided that protrudes from inside one of the upper and lower pipe frames.The connecting rod is inserted into the other pipe frame, and the connecting rod is inserted in the radial direction of the connecting rod. is provided with a screw hole, and a bolt insertion hole is provided in the radial direction of the other pipe frame, and the upper and lower pipe frames are connected to each other by a bolt that is inserted through the bolt insertion hole and screwed into the screw hole. A fuel tank of a portable engine-driven power generation device is provided with a pair of vertically opposing brackets near the joint between the upper and lower pipe frames, and an elastic body provided on the outside of the fuel tank is held between the pair of brackets. Support structure.