JPH045700Y2 - - Google Patents

Description

[Detailed description of the invention] <Field of industrial application> The present invention relates to a fuel tank support device for an engine generator with a cover, and in particular, aims to reduce costs even though a fuel gauge can be assembled to the fuel tank. The present invention relates to a fuel tank support device for an engine generator with a cover, which allows the fuel tank to be reliably supported on the cover with a simple configuration.

<Prior Art> Conventionally, as a fuel tank support device for an engine generator with a cover, there are those in which the refueling port of the fuel tank is fixed to the cover, and those in which the refueling port of the fuel tank is not fixed to the cover. In the former case, normally, as shown in FIG. 4, for example, a male thread 3 is formed on the lateral circumferential surface of a fuel supply port 2 that projects upward from the top surface of the fuel tank 1, and the fuel supply port is connected to the top wall of a cover 4. The nut 7 is inserted into the insertion hole 6 formed in the part 5 and screwed onto the male screw 3 from the upper side of the cover 4 to sandwich the upper wall part 5 of the cover 4 between the upper surface of the fuel tank 1 and the nut 7. On the other hand, a tank support fitting 8 is arranged inside the cover 4, and a mounting portion 9 formed on the inner surface of the cover 4
The bottom surface of the fuel tank 1 is supported by a tank support fitting 8 connected to the fuel tank 1. A recess 10 is formed in the lower part of the fuel tank 1 so as to correspond to the tank support metal fitting 8 so that the positions of the fuel tank 1 and the tank support metal fitting 8 do not shift, and the tank support metal fitting 8 is fitted into the recess 10. At the same time, it is formed in a hat shape that extends along the bottom of the fuel tank 1 and both sides of the fuel tank 1.

In the latter case, although not shown, the fuel tank refueling port is not fixed to the cover, but a screw part for fixing the tank is provided at the bottom or side of the fuel tank.
The connecting portion is configured to be screwed to the cover via a suitable support fitting or directly.

<Problems to be solved by the invention> In the conventional example in which the fuel replenishment port is fixed to the cover, the lower part of the fuel tank 1 has a complicated shape with a recess 10, which increases mold costs, etc.
The shape of the tank support metal fittings is complicated, which increases processing costs, and the number of parts increases, making it difficult to assemble the tank support metal fittings by entering the narrow space inside the cover after fixing the refueling port to the cover. This makes assembly difficult, which is disadvantageous in terms of cost reduction.

In addition, in the conventional example where the fuel tank refueling port is not fixed to the cover, assembly is difficult because the fuel tank and tank support metal fittings must be assembled by entering into a narrow space inside the cover, and the transmission from the cover is difficult. There is a risk that the screwed part may become fatigued due to the vibration caused, and the screwing may become unreliable.

Another problem is that the conventional fuel tank support device for a covered engine generator is not provided with a fuel gauge.

The present invention was developed in consideration of the above circumstances, and although it allows the fuel gauge to be assembled into the fuel tank, it is possible to reduce costs.Moreover, with a simple structure, the fuel tank can be reliably fixed. An object of the present invention is to provide a fuel tank support device for an engine generator with a cover, which can support the fuel tank on the cover and improve the workability of assembling the fuel tank to the cover.

<Means for solving the problems> In order to achieve the above object, the fuel tank support device for a covered engine generator according to the present invention has the following features:
For example, as shown in FIG. 1, a fuel replenishment port 2 and a fuel gauge mounting portion 11 are protruded upward at an appropriate distance from the upper surface of a fuel tank 1 disposed within a cover 4 of an engine generator EG with a cover. , fuel supply port 2
Male fixing screws 3 and 12 are formed on the lateral circumferential surfaces of the and fuel gauge mounting portion 11, respectively, and insertion holes through which the fuel supply port 2 and the fuel gauge mounting portion 11 are inserted are formed in the upper wall portion 5 of the cover 4. 6, 13, and each insertion hole 6, 13
The fuel supply port 2 and fuel gauge mounting part 11 inserted into the
Screw the nuts 7 and 14 onto the male screws 3 and 12 of the cover 4 from above, and sandwich the top wall part 5 of the cover 4 between the top surface of the fuel tank 1 and both nuts 7 and 14 to remove the cover 4. It is characterized in that the fuel replenishment port 2 of the fuel tank 1 and the fuel gauge mounting part 11 are fixed to the upper wall part 5.

<Function> According to the present invention, since the fuel tank is provided with the fuel gauge attachment part, the fuel gauge can be attached there, but since this fuel gauge attachment part constitutes a part of the fuel tank support device, There is no need to provide a fuel gauge attachment part other than the fuel tank support device. In addition, since the fuel tank is fixed to the cover in two places, the fuel filler port and the fuel gauge mounting part, the fuel tank can be securely fixed to the cover even if the tank support fittings inside the cover are omitted. The shape of the bottom of the fuel tank is simplified by omitting the recess into which the support fitting is fitted, reducing the manufacturing cost of the fuel tank, and the mounting part inside the cover is omitted to simplify the shape of the cover. Manufacturing costs can be reduced. In addition, the fuel tank can be fixed to the cover by supporting the fuel tank at a certain height inside the cover and screwing nuts into the fuel filler port and fuel gauge mounting part from the outside of the cover. Compared to the conventional example which requires fastening work, the workability of assembling the fuel tank to the cover can be significantly improved.

In carrying out the present invention, it is not necessary to make the diameters of the male thread 6 of the fuel supply port 2 and the male thread 12 of the fuel gauge mounting part 11 the same, but if the diameters of both male threads 6 and 12 are made the same, 1. Nuts 7 and 14 screwed into
Since it is possible to standardize the types, and to make the connection strength between the fuel supply port and the fuel gauge mounting part the same, the fuel tank can be more stably and reliably supported by the cover.

<Effects of the invention> As described above, according to the invention, although the fuel gauge mounting part is provided and the fuel gauge can be mounted there, the fuel gauge mounting part is not attached to the fuel tank support device. Since it forms only one part, the number of man-hours required to process the fuel tank is small, and costs can be reduced. Furthermore, since the fuel tank is fixed to the cover at two locations: the fuel supply port and the fuel gauge mounting portion, the fuel tank can be securely fixed to the cover. Furthermore, the shape of the side wall and bottom wall of the fuel tank can be simplified, and the structure can be simplified by omitting the tank support fittings in the cover and the attachment part of the cover. In addition, since there is no need to perform screw fixing work within the cover, assembly work efficiency can be improved.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a longitudinal sectional side view of a fuel tank support device for an engine generator with a cover according to an embodiment of the present invention, FIG. 2 is a lateral plan view of the engine generator, and FIG. FIG. 3 is a longitudinal sectional front view of the generator.

As shown in FIG. 3, this engine generator EG includes a vertical shaft engine 15, a generator 16, and a cooling fan 17 inside a box-shaped cover 4 whose bottom surface is open.
and a recoil type starter 18 are arranged in order from bottom to top, and a wind guide case 19 that covers the lateral circumference of the engine 15 and the generator 16, and a left side case 19 that covers the left lateral peripheral surface of the cooling fan 17 and the recoil type starter 18. The fuel tank 1 is arranged above the cylinder 21 of the engine 15 on the left side of the air guide wall 20.

As shown in FIGS. 1 and 2, a fuel tank 1
On the top surface, a fuel filler port 2 and a fuel gauge mounting portion 11 are projected upward at appropriate intervals in the front-rear direction, and a fuel filler port 2 and a fuel gauge mounting portion 11 are provided on the lateral circumferential surfaces thereof, respectively. Fixing male screws 3 and 12 are formed. Further, as shown in FIG. 1, insertion holes 13 and 6 are formed in the upper wall portion 5 of the cover 4 in order to allow the fuel gauge mounting portion 11 and the fuel supply port 2 to pass therethrough. The fuel supply port 2 and the male screw 3 of the fuel gauge mounting part 11 are inserted into the respective insertion ports 6 and 13,
12 from the upper side of the cover 4 to sandwich the upper wall part 5 of the cover 4 between the upper surface of the fuel tank 1 and both nuts 7 and 14. Fuel tank 1 fuel fill port 2
and the fuel gauge mounting portion 11 are fixed.

Although it is not necessary that the male screws 3 and 12 have the same dimensions, in this embodiment the male screws 3 and 12 have the same dimensions in order to ensure the same strength of attachment to the cover 4. Further, around the fuel replenishment port 2 and the fuel gauge mounting portion 11 between the top surface of the fuel tank 1 and the top wall portion 5 of the cover 4, there is a direct connection between the top surface of the fuel tank 1 and the top wall portion 5 of the cover 4. Cushion material 23 is inserted to prevent contact and to prevent the male screws 3, 12 from loosening due to vibration. Furthermore, in order to reliably prevent the lateral vibration of the fuel tank 1, the engine 1 may be moved as shown in FIG.
5 and a wind guide case 19 that covers the lateral peripheral surface of the generator 16
A bracket 25 is provided at the fuel tank 1, and the middle or lower part of the fuel tank 1 is screwed to this bracket 25. Furthermore, a fuel cap 26 for opening and closing the fuel supply port 2 is screwed onto the male screw 3 of the fuel supply port 2 from above the nut 7, and a float type fuel gauge 27 is fitted inside the fuel gauge mounting portion 11. and fixed. In addition, the upper wall portion 5 of the cover 4
The surrounding part 28 of the fuel supply port 2 and the fuel gauge mounting part 1
The peripheral portion 29 of the fuel tank 1 is recessed downward in a U-shape to the left side of the cover 4 so that the top surface of the fuel cap 26 or the fuel gauge 27 is located lower than the top surface of the cover 4.

According to this fuel tank support device for an engine generator with a cover, the fuel gauge mounting portion 11 is attached to the fuel tank 1.
Since the fuel gauge 27 is provided here, the fuel gauge 27 can be attached here, but since this fuel gauge attachment part 11 constitutes a part of the fuel tank support device, there is a fuel gauge dedicated for attaching the fuel gauge in addition to the fuel tank support device. There is no need to provide a mounting part. In addition, since the fuel tank 1 is fixed to the cover 4 at two places, the fuel filler port 2 and the fuel gauge mounting part 11, the fuel tank 1 can be securely attached to the cover 4 even if the tank support fitting 8 inside the cover 4 is omitted. The fuel tank 1 can be fixed to the fuel tank 1 by omitting the recess 10 into which the tank support fitting 8 is fitted.
It is possible to simplify the shape of the bottom of the fuel tank 1 by omitting the screw fixing parts on the side walls and the bottom wall of the cover 1, thereby reducing the manufacturing cost of the fuel tank 1, and by omitting the mounting part 9 in the cover 4. The shape of the cover 4 can be simplified and the manufacturing cost of the cover 4 can be reduced. Alternatively, if the fuel tank 1 is supported at a height above a certain level inside the cover 4 and the nuts 7 and 14 are screwed onto the fuel supply port 2 and the fuel gauge mounting part 11 from the upper side of the cover 4, the fuel tank 1 can be moved into the cover 4. Since the fuel tank 1 can be fixed to the cover 4, the efficiency of the assembly work for assembling the fuel tank 1 to the cover 4 can be significantly improved compared to the conventional example which requires screwing work inside the cover 4.

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional side view of a fuel tank support device for an engine generator with a cover according to an embodiment of the present invention;
Figure 2 is a cross-sectional plan view of the engine generator, Figure 3
The figure is a longitudinal sectional front view of the engine generator, and FIG. 4 is a longitudinal sectional side view of the conventional example. EG...Engine generator with cover, 1...Fuel tank, 2...Fuel fill port, 3...Male thread, 4...
...Cover, 5...Top wall of cover 4, 6...Insertion port, 7...Nut, 11...Fuel gauge mounting part, 12
... Male screw, 13 ... Insertion port, 14 ... Nut.

Claims (1)

[Scope of utility model registration request] A fuel replenishment port 2 and a fuel gauge mounting portion 11 are made to protrude upward at an appropriate distance from the top surface of a fuel tank 1 disposed within a cover 4 of an engine generator EG with a cover, and the fuel refill port 2 and fuel gauge mounting portion 11 are installed. Fixing male screws 3 and 12 are formed on the lateral peripheral surface of the portion 11, respectively,
The upper wall portion 5 of the cover 4 is formed with insertion holes 6 and 13 through which the fuel replenishment port 2 and the fuel gauge mounting portion 11 are inserted, and the fuel replenishment port 2 is inserted into each of the insertion holes 6 and 13.
Then, screw the nuts 7, 14 onto the male threads 3, 12 of the fuel gauge mounting part 11 from above the cover 4, and place the cover 4 between the top surface of the fuel tank 1 and both nuts 7, 14.
A fuel tank support for an engine generator with a cover, characterized in that a fuel supply port 2 of a fuel tank 1 and a fuel gauge mounting part 11 are fixed to an upper wall part 5 of a cover 4 by sandwiching the upper wall part 5. Device.