JPH1113477A - Engine-driven working device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an engine-driven working device that is able to eliminate any fear of disconnection attendant upon the transmission of vibration and external force by making improvements in the operability and assembleability of maintenance operations by way of omitting a resin clamp. SOLUTION: This working device is provided with a generator 10, an engine 12 for driving the generator 10, and a case 1 housing the generator 10 and the engine 12. In this constitution, most of the top of the case 1 is formed into a freely detachable upper cover 6, and the upper part of a fuel tank 18 of the engine 12 is locked tight to an underside of the upper cover 6. In addition, a case-form insulator 26A is attached to the backside of a flange 21 of the fuel tank 18, while an opposed wall and the lower part at the opposite side of the fuel tank 18 of the insulator 26A are formed with each opening and a mounting area 28 being protectively formed, and then the backside of a console panel is attached to and supported on the mounting area 28 detachably.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine driven working device for operating a working machine such as a generator or a pump with an engine, and more particularly to a structure of an operation panel.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conventional engine-driven working device includes a case 1 having a generator 10, an engine 12 for operating the generator 10,
A muffler 15, a fuel tank 18 for the engine 12, and an insulator 26 for preventing electric shock are accommodated in the case 1, and an operation panel 33 is attached to the case 1.

The fuel tank 18 is fixed to the back of a detachable upper cover 6 that forms the upper part of the case 1 and has an inlet 24 protruding from the surface thereof. Set freely. Further, the insulator 26 is formed in a single plate shape, and is vertically attached via a plurality of resin clamps 41 to the upper rear wall (the right side in FIG. 4) of the inside of the case 1 so that the fuel tank 1 is formed.
8 is opposed to the rear wall via a gap.

[0006] The operation panel 33 includes a rear wall 1 a of the case 1.
And is opposed to the insulator 26. An AC breaker 34 and an auto idle switch 35 extend from the upper part to the lower part of the operation surface of the operation panel 33.
And an outlet 36 are attached, and these components are electrically connected to the generator 10 and the like. An auto idle unit 38 is mounted between the operation panel 33 and the insulator 26. A plurality of resin clamps 41 are wound around the wiring portion on the back of the operation panel 33, and the insulator 26 is attached and installed. It should be noted that Japanese Unexamined Utility Model Publication No. 5-32734 is a prior art document of this kind.

[0005]

The conventional engine-driven working device is constructed as described above. When maintenance is to be performed on the wiring portion behind the operation panel 33, the plurality of resin clamps 41 are cut to remove the insulator 26. Since it has to be removed, the workability of the maintenance work deteriorates, and as a result, there is a problem that the work is delayed and complicated. In addition, since the resin clamp 41 is cut, if a plurality of spare resin clamps 41 are not prepared in advance, the insulator 26 must be attached without the resin clamp 41 after the maintenance is completed, and the assemblability and the like are extremely deteriorated. was there.

Further, since the insulator 26 is attached to the wiring portion on the back of the operation panel 33 by winding the resin clamp 41, the engine 26 is strong from the insulator 26 through a plurality of resin clamps 41 to the harness terminal portion of the wiring portion. 12 is transmitted, and there is a problem that the wiring may be disconnected due to this effect.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and improves the workability and assemblability of maintenance work by omitting a resin clamp. It is an object of the present invention to provide an engine-driven working device capable of effectively eliminating the fear.

[0008]

According to the first aspect of the present invention, to achieve the above object, a working machine, an engine for driving the working machine, a housing for accommodating the working machine and the engine, An operation panel on which electric operation switches are mounted, wherein at least a part of an upper portion of the housing is a detachable cover member,
A fuel tank of the engine is mounted on a lower surface of the cover member, a substantially case-shaped insulator is mounted on a wall surface of the fuel tank, and a wall and a lower portion of one end surface of the insulator on the side opposite to the fuel tank are formed by opening. An area is formed, and a non-operation surface of the operation panel is detachably attached to the attachment area. As described in claim 2, a flange is projected from the peripheral wall of the fuel tank, and a mounting piece for the flange is provided on the upper and / or other end wall of the insulator. Are provided, and the operation panel is substantially L-shaped in cross section.
It is preferable that the operation panel is formed in a letter shape, and fitting recesses for the fitting projections are provided on both lower sides of the operation panel. Further, as described in claim 3, the insulator mounting bracket can be mounted on the peripheral wall of the fuel tank.

According to the first aspect of the present invention, when it is desired to perform a predetermined operation such as maintenance on the wiring portion of the operation panel or the like, the cover member is removed from the upper portion of the opening of the housing. In this case, since the insulator composed of the cover member, the fuel tank, and the insulating member is integrated,
The insulator is released from the non-operation portion of the operation panel in the assembled state, and the assembled state is released, and work can be performed by this release. Also, when the cover member is put on the original position, the insulator is attached to the non-operation portion of the operation panel, and the non-operation surface of the operation panel is covered and protected by the mounting region of the insulator.

According to the second aspect of the present invention, when performing a predetermined operation, when the cover member is removed from the upper portion of the opening of the housing, the cover member, the fuel tank, and the flange of the fuel tank are attached to each other through the mounting piece. Since the insulator made of the insulating member supported in this manner maintains an integral relationship, the fitting projection of the insulator is disengaged from the fitting recess of the operation panel, and the assembled state is released. It can be carried out. When the cover member is returned to the original position, the fitting projection of the insulator is set in the fitting recess of the operation panel, and the non-operation surface of the operation panel is covered and protected by the mounting region of the insulator.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the engine-driven working device according to the present embodiment accommodates a generator 10, an engine 12, a fuel tank 18, and an insulator 26 </ b> A different from the conventional example in a case 1 having a soundproof function, respectively. An operation panel 33A different from the conventional example is attached to the case 1, and an insulator 26A is integrally provided as a part of the fuel tank 18, and the operation panel 33 is provided in a mounting area 28 of the insulator 26A.
The back surface of A is detachably mounted and supported.

The case 1 is provided with wheels 2 for traveling at the four lower corners thereof, and an intake port 3 is formed on one side of the lower surface of the lower surface, and the intake port 3 is located on the upper side. A cleaner 4 for the engine 12 is connected via an intake pipe 5. Most of the upper part of the case 1 is formed with an opening, and a rectangular plate-shaped upper cover 6 is supported on the periphery of the upper part of the opening so as to be openable and closable. A substantially inverted U-shaped pipe 7 is provided between both sides of the center of the upper part of the case 1, and this pipe 7 functions to secure convenience in moving or to attenuate an impact. At the center of the peripheral wall of the case 1, a substantially frame-shaped pipe 8 is attached so as to surround it, and the pipe 8 acts to protect it from impact. A mounting opening 9 for the operation panel 33A is formed to penetrate and open from the upper part to the center of the back wall 1a (the right side in FIG. 1) of the case 1 curved in an arc shape.

The generator 10 is a rotating field type with a horizontal axis, and a suitable flywheel effect is applied to a rotor (not shown) in order to make the angular velocity of the rotor uniform. 1b (left side in FIG. 1) via a plurality of mount members 11 and an engine 12
Connected to the crankshaft. This engine 12
It mainly includes a crankcase forming a lower part, a cylinder supported by the crankcase, and a cylinder head covering the upper part of the cylinder. Installed. A muffler 15 is connected to an exhaust port of the engine 12 via an exhaust pipe 14.
A plurality of support members 17 are installed in the case-shaped muffler cover 16 on the front wall side above the inside of the generator 10 and located above the generator 10.

The fuel tank 18 is fixed to the rear wall of the rear surface of the upper cover 6 and is located above the engine 12. The fuel tank 18 includes an upper container 19 having an open lower part and a lower container 20 having an open upper part. Flanges 21 respectively protrude from the peripheral edges of the upper container 19 and the lower container 20 in the horizontal outward direction. The upper container flange 21 and the lower container flange 21 are overlapped and seam-welded. A plurality of screw holes 22 are formed at a predetermined pitch on the back side of the flange 21 of each welded container. Further, a swelling portion 23 having a substantially oval flat shape is formed on a side portion of the surface of the upper container, and an inlet 24 penetrating the upper cover 6 is formed at a substantially central portion of the surface.
Is detachably screwed.

The insulator 26A is connected to the fuel tank 18
Is attached to the flange 21 via a plurality of screws 27 in an integrated structure. This insulator 26A
A facing wall (one end face wall) and a lower portion facing the rear wall 1a of the case 1 are formed in a case shape, and the opened facing wall and the lower portion are formed in the mounting region 28.
Are formed. A substantially inverted L-shaped mounting piece 29 protrudes from the upper side of the opposite wall of the insulator 26A, and the mounting piece 29 is attached to a plurality of screw holes 22 of the flange 21 via a plurality of screws 27. .

A notch 3 for inserting an electrical component extends from the lower edge of the opposite wall of the insulator 26A to the upper side.
Zeros are arranged vertically at predetermined pitches, and the notches 30 are provided with a rubber seal 31 at the peripheral edge thereof to effectively protect cables and the like. The fitting pieces 32 project from the lower edges of both side walls of the insulator 26A, and the fitting pieces 32 are directed downward.

Further, the operation panel 33A is fitted into the mounting opening 9, and the back surface (non-operation surface) is covered with the mounting area 28 of the insulator 26A. This operation panel 3
An AC breaker 34, an auto-idle switch 35, an outlet 36, and the like are attached from the upper part to the lower part of the upright operation surface of the generator 3A.
And the like, and are electrically connected via cables and the like. On both sides of the lower portion of the operation panel 33A that protrudes horizontally, fitting groove holes 37 are respectively formed.
Each of the fitting pieces 32 of the insulator 26A is removably inserted into 7. Note that an auto idle unit 38 is attached and installed below the operation panel 33A and the insulator 26A.

When the engine 12 is driven by appropriately operating the operation panel 33A, the generator 10 operates to generate electric power in the engine-driven working device having the above-described configuration. Therefore, a leisure power source, an emergency power source, or a remote island power source is provided.・
It can be appropriately used as a power source for ships and the like.

When it is desired to perform maintenance on the wiring portion behind the operation panel 33A, the upper cover 6 may be removed from the upper portion of the opening of the case 1. Then, the upper cover 6, the fuel tank 18, and the insulator 2
Since 6A is an integral structure, the fitting pieces 32 of the insulator 26A come out of the pair of fitting groove holes 37 of the operation panel 33A, respectively, and the assembly is released. This release enables maintenance work. In this state, the maintenance work is performed. When the maintenance is completed and the upper cover 6 is put on the upper opening of the case 1, the fitting pieces 3 of the insulator 26A are fitted into the pair of fitting grooves 37 of the operation panel 33A.
2 are respectively inserted, and the back surface of the operation panel 33A is completely covered with the mounting region 28 of the insulator 26A.

According to the above configuration, the plurality of resin clamps 4
1 can be omitted reliably, so troublesome cutting work and the like can be dispensed with, thereby greatly improving the workability of maintenance work and effectively preventing and suppressing delays and complications in work. can do. Also,
Operation panel 33A at the same time as removing upper cover 6
Since the insulator 26A on the back surface of the device can be easily removed, the maintenance work can be performed smoothly and quickly.
Further, the insulator 26A is inserted into the pair of fitting slots 37 of the operation panel 33A without using any screw member.
Can be easily assembled by inserting each of the fitting pieces 32, so that the assemblability can be remarkably improved, and the attachment of the insulator 26A is never forgotten.

Further, all of the plurality of resin clamps 41 for transmitting vibration are omitted, and the insulator 26A
Since a plurality of notches 30 are juxtaposed on the opposite wall and a rubber seal 31 for protection is attached to each peripheral edge thereof,
There is no danger of adverse effects or damage due to the action of vibration or external force. Therefore, strong vibration and external force of the engine 12 are transmitted from the insulator 26A to the harness terminal portion of the wiring portion, and it is possible to reliably prevent the wiring portion from being disconnected due to the transmission.

Further, since a plurality of screw holes 22 are formed in the flange 21 necessarily formed in the fuel tank 18 and the insulator 26A is mounted using the plurality of screw holes 22, no new mounting member or the like is required. In addition, a remarkable simplification of the configuration can be expected. Further, the insulator 26
Since A is a case type, unlike the conventional example, the operation panel 3
Inadvertent intrusion of a hand or the like into the back surface of the 3A can be effectively restricted, and the risk of electric shock or the like can be extremely effectively removed to improve safety.

FIG. 3 shows a second embodiment of the present invention. In this case, a pair of brackets 3 having a substantially hat-shaped cross section are provided at the lower part of the peripheral wall on the back side of the fuel tank 18.
9 is spot-welded at predetermined intervals, the opposite facing walls of the insulator 26B are attached to the pair of brackets 39 via screw members, and the back surface of the operation panel 33B is attached to the opening wall surface of the mounting area 28 of the insulator 26B. It is designed to be detachably attached and supported.

The insulator 26B in the present embodiment
The mounting piece 29 and the pair of fitting pieces 32 are omitted, and screw holes 40 are formed in the opposite wall at predetermined intervals. Further, the operation panel 33B is formed substantially in an L shape, and the pair of fitting groove holes 37 is omitted. The mounting area 28 of the insulator 26B and the back surface of the operation panel 33B are set using fitting of uneven members or various screw members. Other parts are the same as those of the above-described embodiment, and the description thereof is omitted.

In this embodiment, the same operation and effect as those of the above embodiment can be expected. Further, since the insulator 26B is attached to the fuel tank 18 through the simple bracket 39, the screw hole 40 and the screw member, the structure is relatively high. Obviously, the mounting piece 29, the fitting piece 32, and the fitting groove hole 37, which are complicated in processing and configuration, can be omitted, and further simplification of the configuration can be expected.

In the above embodiment, the wheels 2 are located at the lower four corners.
Although the case 1 provided with is shown, the wheels 2 and the like can be omitted as appropriate. Further, the size, shape, length, and the like of the upper cover 6 can be appropriately changed. Also,
The types of the generator 10 and the engine 12 can be appropriately changed, and working machines other than the generator 10 such as various pumps can be used as appropriate. Further, the mounting piece 29 of the insulator 26A can be formed into a shape such as an I-shape, an S-shape, or a Z-shape, or a plurality of pieces. Further, the shape or number of the notch 30 or the fitting piece 32 may be appropriately increased or decreased.

The measuring instruments and electrical components set on the operation panel 33A can be increased or decreased as needed. Further, the fitting groove hole 37 of the operation panel 33A is provided.
May be increased or decreased as needed. Further, the shape and number of the brackets 39 may be appropriately increased or decreased, and it is needless to say that the plurality of brackets 39 may be appropriately mounted on the upper portion of the peripheral wall on the back side of the fuel tank 18 by various means such as welding. .

[0028]

As described above, according to the first aspect of the present invention, the resin clamp is omitted to improve the workability and assemblability of the maintenance work, and the possibility of disconnection due to transmission of vibration or external force is reduced. There is an effect that it can be removed.

According to the second aspect of the present invention, the fitting convex portion of the insulator is detachably attached to the fitting concave portion of the operation panel without using a coupling part such as a screw, so that the assembly is easily assembled. Therefore, assemblability can be improved. Also, there is no need to forget to attach the insulator.

Further, according to the third aspect of the present invention, the mounting piece, the fitting concave portion and the fitting convex portion can be omitted, and further simplification of the structure can be expected.

[Brief description of the drawings]

FIG. 1 is a sectional side view showing an embodiment of an engine drive working device according to the present invention.

FIG. 2 is a perspective view of a main part showing an embodiment of the engine drive working device according to the present invention.

FIG. 3 is a perspective view showing a main part of a second embodiment of the engine drive working device according to the present invention.

FIG. 4 is a cross-sectional side view showing a conventional engine drive working device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Case (housing) 1a Back wall 6 Upper cover (cover member) 9 Mounting port 10 Generator (work machine) 12 Engine 18 Fuel tank 21 Flange 26 Insulator 26A Insulator 26B Insulator 28 Mounting area 29 Mounting piece 32 Fitting piece (fitting) Projection) 33 Operation panel 33A Operation panel 33B Operation panel 37 Fitting groove (fitting recess) 39 Bracket 41 Resin clamp

Claims (3)

[Claims] 1. An engine-driven working device comprising: a working machine; an engine for driving the working machine; a housing for accommodating the working machine and the engine; and an operation panel on which electric operation switches are mounted. At least a part of an upper portion of the housing is a detachable cover member, a fuel tank of the engine is mounted on a lower surface of the cover member, and a substantially case-shaped insulator is mounted on a wall surface of the fuel tank. An engine-driven working device, characterized in that an end wall and a lower part on the fuel tank side are respectively formed with openings to form a mounting area, and a non-operation surface of an operation panel is detachably mounted in the mounting area. 2. A flange protrudes from a peripheral wall of the fuel tank, a mounting piece for the flange is provided on an upper portion and / or another end surface wall of the insulator, and a fitting protrusion pointing downward at a lower portion on both side walls of the insulator. 2. The engine drive working device according to claim 1, wherein the operation panel is formed to have a substantially L-shaped cross section, and fitting recesses for the fitting projections are provided on both lower sides of the operation panel. 3. The engine drive working device according to claim 1, wherein the insulator mounting bracket is mounted on a peripheral wall of the fuel tank.