JPH0724922Y2 - Protective frame type engine work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention relates to an engine working machine surrounded by a protective frame,
The engine and the working machine can be assembled together and easily housed in the protective frame.

<Prior Art> The basic structure of a protective frame type engine working machine to which the present invention is applied is, as shown in FIG. 1, that an engine E and a working machine G are provided on the left and right in a protective frame 1, and a fuel tank 2 is provided. A pair of front and rear tank support frames 3 and 4 are supported on the left and right vertical frames 5 and 6 of the protective frame 1 on both the front and rear sides of the fuel tank 2, and the pair of front and rear support frames 3 4 is a type in which the collar portion 7 of the fuel tank 2 is attached via the anti-vibration rubbers 8 and 10.

As a conventional technique of this type, the front and rear tank support frames 3
There is one in which 4 is fixed to the left and right vertical frames 5 and 6 of the protective frame 1, and the engine generator is housed and arranged in the protective frame 1 of the pipe frame.

<Problems to be Solved by the Invention> However, in the above-described conventional technique, when the engine generator is integrally assembled and housed in the protective frame 1, the tank support is provided in the left-right direction above and above the protective frame 1. Since the frames 3 and 4 are running, a protruding portion of the engine generator, for example, a carburetor, an air cleaner or the like protruding to the lateral outer side of the engine E is caught in the tank support frames 3 and 4, or the engine generator Since both hands of the operator holding the object are caught in the tank support frames 3 and 4, the accommodation operation is not easy.

On the other hand, the front-back direction of the protective frame 1 is widened to increase the tank support frame 3
・ If the projecting part of the engine generator or the operator's hand is not caught in 4, the housing will be easier, but the entire engine generator will be large.

In addition, when the fuel tank 2 fixed to the tank support frames 3 and 4 becomes loose due to vibration during operation of the engine E or transportation of the engine working machine, a tank supporting operation such as refitting the rubber vibration isolator 8 and 10 is required. Redo or tank support frame 3
-The shape of 4 and the collar portion 7 of the fuel tank 2 must be improved.

An object of the present invention is to easily house the engine working machine assembled integrally in the protective frame and to make the protective frame compact.

<Means for Solving the Problems> Means for solving the above problems will be described below with reference to the drawings corresponding to the embodiments.

That is, the first invention is, in the protective frame type engine working machine of the basic structure, one tank supporting frame 3 (4) of the front and rear pair is non-detachably fixed to the left and right vertical frames 5 and 6, The other tank support frame 4 (3) is detachably attached to the support portions 11 and 12 that are fixed to the left and right vertical frames 5 and 6 by the attachment / detachment means 13, and the tank collar fitting support portion 14 is attached to the one tank support frame 3. The lower part of the tank collar insertion support part 14 is formed horizontally, and the upper part of the tank collar insertion support part 14 rises inward of the protective frame 1 and is formed in an inclined shape. The groove 15 of the anti-vibration rubber 8 is fitted and attached to the tank collar 7 to attach the anti-vibration rubber 8
Is characterized in that the upper and lower plate portions of the tank collar fitting and supporting portion 14 are wedge-shaped so as to be fitted and fixed in a wedge shape.

The second invention is the tank support frame 4 according to the first invention.
The left and right frame ends 16 and 17 of (3) are placed on the left and right support parts 11 and 12 of the vertical frames 5 and 6 so as to be slidable back and forth.
Is attached to each of the support portions 11 and 12 by the attaching / detaching means 13 so as to be adjustable in the longitudinal direction and detachable.

<Operation> (1) In the first invention, the other supporting frame 4 (3) is removed from the supporting portions 11 and 12 fixed to the left and right vertical frames 5 and 6, and the engine working machine assembled integrally is used with both hands. When held and dropped into the protective frame 1 from diagonally above the other side surface, the engine working machine or both hands will move to the front and rear of the protective frame 1 and the tank support frames 3 and 4 as in the prior art.
Never get caught in.

In this case, the anti-vibration rubber 8 fitted and inserted in the tank collar portion 7 on one side is fitted and fixed in a wedge / bite-like manner on the tank collar fitting and supporting portion 14 formed on the tank supporting frame 3 (4) on one side. Therefore, the fuel tank 2 is firmly supported by the tank support frames 3 and 4 through the front and rear antivibration rubbers 8 and 10.

(2) In the second invention, the fuel tank 2 is the engine E.
If you feel vibration or vibration during operation,
When the left and right frame end portions 16 and 17 of the detachable tank support frame 4 (3) are adjusted forward and backward with respect to the support portions 11 and 12 by the attachment / detachment means 13, the other tank support frame 3 (4) is obtained. By strengthening the biting force of the anti-vibration rubber 8 (10) with respect to the formed tank collar fitting support portion 14, the fuel tank 2 can be firmly supported easily and quickly by the tank support frames 3 and 4.

<Effects of the Invention> (1) The engine can be easily housed in the protective frame with the working machine set, and even if the protective frame is not widened, the protruding part of the engine working machine and the operator's hand can hold the tank. The entire protective frame can be compactly packed without being caught on the support frame.

(2) The anti-vibration rubber attached to the tank collar on the side of one tank support frame is fitted between the upper plate part and the lower plate part of the tank collar fitting support part by the operation of housing the engine in the protective frame. Since it is inserted and squeezed, the tank collar portion is fixed to the protective frame with a proper elastic force due to the clamping force by the compression of the vibration-proof rubber. Also,
The anti-vibration rubber is pressed into contact with the inclined surface of the upper plate of the tank collar fitting support portion when it is inserted, and is relatively smoothly fitted to the inner side of the tank collar fitting support portion while being squeezed in a wedge shape by this inclined surface. As a result, the tank collar can be reliably held. Therefore, rattling of the fuel tank due to engine vibration or the like is reduced while having a vibration damping effect, and reliability of attachment strength of the fuel tank to the protective frame is improved.

(3) Moreover, since the antivibration rubber is fixed in a state of being interposed between the tank flange portion and the tank flange fitting insertion support portion only by performing an operation of housing the engine in the protective frame, the antivibration rubber is bolted. It is possible to omit the trouble of fixing to the tank collar portion or the tank collar fitting insertion support portion with a nut or the like. That is, it is possible to reduce the labor for assembling the protective frame type engine working machine while having the vibration damping effect, and to shorten the assembling time.

(4) When the left and right frame end portions of the tank support frame are attached to the respective support portions of the left and right vertical frames in such a manner that they can be adjusted forward and backward and detachably, the vibration-proof rubber tank collar fitting support portion. By adjusting the biting force to the vibration isolator, the vibration damping rubber can be adjusted to an appropriate elastic force, and the fuel tank is rattled due to vibration during engine operation or transportation of the engine working machine while having an appropriate vibration isolation effect. Can be reliably and easily reduced.

<Embodiment> An embodiment of the present invention will be described below with reference to the drawings.

1 is a right side view of the protective frame type engine generator, FIG. 2 is an enlarged right side view of the vicinity of the tank support frame, FIG. 3 is a plan view of the engine generator, and FIG. 4 is a left side view of the same. FIG. 5 is a front view thereof, in which a vertical air-cooled engine E and a generator G are interlockingly connected left and right, and the integrated engine generator is housed in a pipe frame-shaped protective frame 1 A large flat fuel tank 2 is arranged over the generator.

The protective frame 1 has a structure in which the lower part of each of the inverted U-shaped pipe frames that are erected on the left and right is continuously connected to the left and right by a pair of front and rear pipe frames. Of the vertical U of the right U-shaped frame and the right vertical frame 6.6.

A pair of tank support frames 3 and 4 are supported front and back over the upper portions of the left and right vertical frames 5 and 6, and the front tank support frame 3 is non-detachably fixed to the vertical frames 5 and 6, and the rear tank is supported. Support frame 4
Is removably attached to the vertical frames 5 and 6.

That is, as shown in FIGS. 2 and 3, the left and right vertical frames 5,
The support portions 11 and 12 having a U-shaped cross section and a short length are fixed to 6, and the long rear support frame 4 having a U-shaped cross section is bridged across the support portions 11 and 12.

The rear support frame 4 is externally mounted on the support parts 11 and 12, and
Fastening bolts 13 that overlap the front and rear long holes 18 formed in 11 and 12 and the bolt holes 19 formed in the left and right frame ends 16 and 17 of the support frame 4
Then, the rear support frame 4 is attached to the support portions 11 and 12 so as to be adjustable in the longitudinal direction and detachable.

Antivibration rubber 10 is fixed to the upper surfaces of the frame ends 16 and 17 of the rear support frame 4, and the collar portion 7 of the fuel tank 2 is provided at the center of the antivibration rubber 10.
Sandwich.

Further, as shown in FIG. 2, the tank collar fitting insertion supporting portion 14 is formed at least at two positions of the front support frame 3, and the tank collar fitting insertion supporting portion 14 has its lower surface horizontal and its upper surface tilted backward and upward. When the vibration isolating rubber 8 is wedge-shaped and is inserted into the flange portion 7 of the fuel tank 2 and the groove portion 15 is inserted (or a flat shape is folded back and sandwiched). In addition, the anti-vibration rubber 8 is squeezed by its inclined surface so that the clamping force with respect to the collar portion 7 is increased.

Therefore, the function of the protective frame type engine generator will be described.

When arranging the engine generator in the protective frame 1, loosen the fastening bolts 13 and attach the rear support frame 4 to the left and right vertical frames 5 and 6.
The engine generator, which is detached from the support parts 11 and 12, is integrally assembled and held by holding it with both hands and dropping it into the protective frame 1 from diagonally above the rear open surface.

As a result, as in the prior art, the engine working machine or both hands can run above and behind the protective frame 1 above the tank support frames 3 and 4.
Since it does not get caught in, it is not necessary to design the protective frame 1 to be large and wide so that both hands can easily enter, and the entire protective frame 1 can be compactly assembled.

Further, in this case, when the left and right frame end portions 16 and 17 of the rear tank support frame 4 configured to be detachable are adjusted forward and backward with respect to the respective support portions 11 and 12 by the attaching / detaching means 13, the front tank support frame 3 Since the wedge / biting force of the rubber vibration isolator 8 (10) with respect to the tank collar fitting and supporting portion 14 can be increased, rattling of the fuel tank 2 due to engine vibration or the like can be easily and quickly prevented, and the fuel tank 2 can be mounted. The reliability of strength can be improved, and the attachment operation of the fuel tank 2 to the tank support frames 3 and 4 becomes easy.

6 and 7 each show a modified example of the mounting structure of the rear tank support frame 4, and FIG. 6 shows that the tank support frame 4 is formed in an L-shape instead of the U-shape in section, and the same L-shape is also used. The tank support frame 4 is placed on the support parts 11 and 12 formed in a character shape, the long hole 18 is formed in the tank support frame 4, and the bolt hole 19 is formed in the support parts 11 and 12 to support the tank support frame 4. The parts can be adjusted back and forth with respect to parts 11 and 12 and can be attached and detached.

Further, FIG. 7 shows that the tank support frame 4 cannot be adjusted back and forth with respect to the support portions 11 and 12 by screwing fastening bolts 13 in the front-rear direction at the overlapping portions of the tank support frame 4 and the support portions 11 and 12. It is fixed in position.

The other main structure of the protective frame type engine generator will be described below.

An air guide fan 20 is attached to one of the vertical air-cooled engine E, an carburetor 22 and an air cleaner 23 are attached to an intake pipe 21 led forward from a cylinder head of the engine E, and an exhaust pipe led rearward of the engine E is attached. A horizontally long cylindrical muffler 24 is attached, covered with a muffler cover 25, and placed in the space above the generator G.

The muffler 24 and the muffler cover 25 are fastened together by bolts to the bracket 26 that is raised and supported in an L-shape from two positions on the rear surface of the crankcase of the engine E. Therefore, for example, to the bracket derived from the generator G. Compared to the case where it is supported, the vibration received by the muffler 24 becomes smaller, and even a large muffler can be firmly attached.

On the other hand, the control box 27 is arranged along the right side from the lower left end of the tank support frame 3 on the front surface of the protective frame 1, the makeup cover 28 is arranged on the right side thereof, and the carburetor 22 is arranged on the rear portion of the makeup cover 28. The air cleaner 23 is disposed below the cover 28.

The decorative cover 28 is detachably attached to the protective frame 1, and if the decorative cover 28 is removed, the carburetor 22, the fuel filter, and the like appear, so that maintenance of these is facilitated.

In addition, by arranging the control box 27 and the decorative cover 28 in combination on the front side of the protective frame 1, depending on the size of the protective frame 1 (that is, the size of the engine generator), the front side of the protective frame 1 is filled to the left and right. The control box 27 can be placed separately in the box and the makeup cover 28 can be omitted, or the control box 27 of the same size can be placed as a set with the makeup covers 28 of different sizes. If a cosmetic cover 28 of a size and design is prepared, the control box 27 can be a common component regardless of the size of the engine generator, and the mass production of the box 27 can reduce the manufacturing cost.

As described above, the present invention is characterized in that one of the pair of tank support frames 3 and 4 supported in front of and behind the protective frame 1 is configured to be attachable / detachable. Therefore, the invention is not limited to an engine generator. It can also be applied to other engine working machines such as.

Moreover, the protective frame 1 is not limited to the pipe frame, but may be an H type or an L type.
It does not matter if it is a frame such as a mold.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a right side view of a protective frame type engine generator, Fig. 2 is an enlarged right side view of the vicinity of a tank support frame, and Fig. 3 is a plan view of the engine generator. 4 is its left side view, FIG. 5 is its front view, FIG. 6 and FIG.
Each of the drawings is an explanatory view showing a modified example of the mounting structure of the rear tank support frame. 1 ... Protective frame, 2 ... Fuel tank, 3.4 ... Tank support frame,
5/6 ... Vertical frame, 7 ... 2 collar, 8/10 ... Anti-vibration rubber, 11.
12 ... Support part, 13 ... Attachment / detachment means, 14 ... Tank collar fitting support part,
15 ... 8 groove, 16.17 ... 3.4 frame end, E ... engine.

Claims (2)

[Scope of utility model registration request] 1. An engine (E) and a working machine (G) are provided on the left and right in a protective frame (1), and a fuel tank (2) is arranged on the upper side, and on both front and rear sides of the fuel tank (2), The pair of front and rear tank support frames (3) and (4) are supported over the left and right vertical frames (5) and (6) of the protective frame (1), respectively, and the pair of front and rear support frames (3) ( 4) A protective frame type engine working machine in which the collar portion (7) of the fuel tank (2) is attached to the fuel tank (2) via the anti-vibration rubbers (8) and (10). The support frame (3) is non-detachably fixed to the left and right vertical frames (5) and (6), and the other tank support frame (4) is fixed to the left and right vertical frames (5).
Removably attached to the support portions (11) and (12) fixed to (6) by the attachment / detachment means (13), and the tank collar fitting insertion support portion (14) is formed on the one tank support frame (3), In this tank collar fitting insertion support portion (14), the lower plate portion is formed horizontally, and the upper plate portion is formed so as to rise inwardly of the protective frame (1) and be inclined. The groove portion (15) of the vibration isolating rubber (8) is fitted and inserted into the tank collar portion (7) on the (3) side, and the vibration isolating rubber (8) is attached to the tank collar fitting and supporting portion (14).
A protective frame type engine working machine characterized in that it is configured such that the upper and lower plate portions thereof are wedge-shaped so as to be fitted, fitted and fixed. 2. The left and right frame end portions (16, 17) of the other tank support frame (4) are slid back and forth on the support portions (11), (12) of the left and right vertical frames (5), (6). It is movably mounted, and the frame end portions (16) (17) are attached to the support portions (11) (12) so as to be adjustable in the front-rear direction and detachable by a detaching means (13). The protective frame type engine working machine according to Item 1.