JP3306752B2 - Engine-driven work machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine driven type working machine (hereinafter referred to as "working machine") such as a compressor or a generator, and more particularly to a working machine for lifting a working machine. those characterized by a structure of lifting the hooking portion for hooking the member.

[0002]

2. Description of the Related Art Conventionally, in construction sites and the like, working machines such as a generator and a compressor driven by an engine have been used. Hereinafter, a compressor will be described as an example of this type of working machine.

As shown in FIGS. 6 and 7 , a main part of the compressor is a compressor main body C as a working machine main body, and an engine E having a rear end output shaft connected to the compressor main body C.
And an exhaust muffler M connected to the engine E via a primary exhaust pipe 13. These devices are arranged on a base 10 serving as a base. A radiator fan 12 is mounted on a rotation shaft at the front end of the engine E, and a radiator 11 is provided at a position opposed to the radiator fan 12. Further, a horizontal tube portion 141 protruding in the horizontal direction from the side surface of the exhaust muffler M, and a vertical tube portion 144 bent at an intermediate portion so that the exhaust opening portion 144a, which is a tip portion, is directed upward.
Is attached to the exhaust muffler M. Each device of the compressor is housed in a hood B. An exhaust outlet 14 is provided at the upper end of the hood B.
, An exhaust gas outlet 15 is formed.

[0004]

THE INVENTION Problems to be Solved] Contact <br/> only that challenges the traditional of the compressor was in the structure of the lifting hook portion 120. Here, the structure of the lifting hook 120 of the compressor will be described. As shown in FIGS. 5 and 6 , the hanging hook 120 is formed substantially at the center of the bonnet B, and is formed as a groove in a direction parallel to the short side B1 of the bonnet B. 122 and an upper portion of the concave portion 122, and is laid horizontally and vertically on the wall surface thereof.
It consists of a hanging member for hanging the lifting member. In the compressor shown in FIG. 5 , in order to maintain the balance of the compressor at the time of lifting, round bars 121 serving as the above-mentioned hook members are provided at two places on both sides of the center of gravity of the compressor. In addition,
The reason why the lifting hanging section 120 is configured as described above is that the lifting hanging section 1
This is because, if the protrusion 20 is provided so as to protrude from the upper surface of the hood B, it becomes an obstacle.

When the compressor is lifted,8
As shown in (a), a hook F for lifting is provided at the end.
Using a wire rope W having a predetermined length, hook H
Attached to the round bar 121, the other end of the wire rope W is crane
And the like, and the above two hanging hooks
This was performed by hanging at two points by the stopper 120.
Here, the width (w) of the concave portion is determined by the operation of the hook F.
Consider using a large hook F in terms of operability and versatility
Should be bigger. On the other hand, the lifting hook
120 is generally a balun during lifting, taking into account the center of gravity of the compressor.
It is provided at a position where it can keep the But,
Fuel tank T (Figure7, Figure8) Etc. are space and compression
Considering the workability of refueling from outside the compressor, one side of the compressor
The fuel is often unevenly placed at the end,
Imbalance due to the amount of fuel in the fuel tank T
May occur. In such a case, suspend the compressor.
Immediately after lifting, the aircraft tilts slightly (Fig.8
(B)), immediately after that, the hook F lifted the aircraft
Slides on the round bar 121 in a state where both hooks F are
The aircraft further inclines because it abuts one end of the
(Figure8(C)). At that time, the aircraft shakes
It moves and becomes unstable, hits the surroundings and damages the aircraft
Or caught workers.

In order to cope with such a situation, a round bar is bent into a U-shape to form a hook member 121 ′ so that the hook F does not slide on the hook member, and the hook bar is fixed to the recess 122. (See FIG. 9 ). However, in the above case, there is a problem that the number of processing steps of the hanging member 121 'is increased, and the processing becomes complicated .

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned respective disadvantages, and it is possible to maintain the stability of a working machine at the time of lifting without causing the lifting member to skid. It is an object of the present invention to provide a working machine having a structure of a lifting hook which is easy to process .

[0008]

In short, an engine-driven work machine according to claim 1 has an engine, a work machine main body driven by the engine, and an exhaust muffler connected to the engine in a hood. A lifting hook portion comprising: a recess provided on the upper surface of the bonnet; and a hook member laterally provided in the recess so as not to protrude above the upper surface of the bonnet. Is provided at a plurality of positions, wherein a lifting member is fixed to an end of the hanging member when the engine-driven work machine is lifted, whereby the engine-driven work machine is provided. In order to ensure the stability of the machine, the latching member is characterized by being provided in the recess with a slope in a height direction or a plane direction.

[0009] In the above-mentioned plurality of lifting hanging portions, the point of application of the resultant force of the forces acting on the lifting members of the respective lifting hanging portions during lifting is determined by the center of gravity of the engine-driven work machine. Needless to say, it is provided so as to be located substantially on a vertical line passing through the position.

Therefore, according to the present invention, the engine has a structure in which the hooking member has a structure in which the hanging member is inclined in a height direction or a plane direction and is laterally provided in the recess. Since the lifting member can be fixed to one end of the hanging member during lifting of the driven work machine, it is possible to easily ensure the stability of the engine-driven work machine. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings. In addition, since the present invention is a conventional working machine, in which the structure of the lifting hook is improved, based on a compressor having two lifting hooks already described in the section of the prior art, only for structure of hoisting hook member, and that the description thereof. Therefore, since the main parts of the compressor are the same, the same reference numerals are given to the already described devices, members, and the like, and the description thereof will be omitted.

[0012] The present invention 請 Motomeko 1 wherein is an engine-driven work machine having a feature in lifting engagement portion. As shown in FIG. 1, the lifting hook 20 in the compressor of the present invention includes a concave portion 22 provided above the bonnet B and a bar member (a round bar) which is a horizontal hanging member provided in the concave portion 22. ) 21. Hereinafter, each component will be described.

First Embodiment As shown in FIG. 1, a recess 22 is formed by a pair of frame members 23 erected on the long sides of the base 10 so as to face each other.
A horizontal plate member 26 laid horizontally at an upper predetermined position,
In the upper part of the horizontal plate member 26, the frame member 23
And is formed by a pair of channel steels 24 fixed to the groove. The pair of channel steels 24 are provided between the pair of frame members 23 so that the webs 24a are opposed to each other by providing an interval necessary for an operation of attaching a general-purpose large hook F which is a lifting member. It is erected. Here, it is necessary to provide the pair of channel steels 24 such that the center of gravity G of the compressor is located on the center line of the space between them, in order to maintain stability during lifting (FIG. 2). . The upper end of the channel steel 24 is provided so as to coincide with the upper end of the frame member 23 so as not to protrude above the upper surface of the bonnet B. It is open.

Here, as shown in FIG.
It may be formed as an integral concave groove, or may be formed separately for each lifting hook. A drain hole 28 is formed in each of the frame members 23 below the concave portion 22 to discharge water collected in the concave portion 22 to the outside.

[0015] As shown in FIG.
Two bar members 21 longer than the interval between the channel steels 24 are used, and within the interval between the channel steels 24, one of them rises to the right with respect to the horizontal direction of the compressor, and the other rises to the left, It is laterally installed in such a manner as to form a slant in the right and left opposite directions in the vertical direction.
The channel steel 24 is formed with holes 24b for fitting both ends of the bar member 21 at appropriate positions for horizontally placing the bar member 21 (FIG. 1 (b)). )). In the hole 24b, the middle point of the line connecting the upper end portions 21a of the rod members 21 is located substantially on a vertical line passing through the center of gravity G of the compressor. Since the center of gravity of the compressor varies depending on the amount of fuel in the fuel tank T, the center of gravity G indicates the center of gravity when a standard amount of fuel is provided (the following embodiment). But the same).

The first embodiment of the present invention is configured as described above, and the operation during lifting of the compressor will be described below. As shown in FIG. 2, as in the conventional case, a wire rope W having a predetermined length provided with a hook F for lifting at an end thereof is used. The other end of W is hooked on a crane lifting device (not shown). When the wire rope W is gradually lifted by a crane (not shown), after the wire rope W is tensioned, each hook F moves upward along the inclination of the rod member 21. The hook F finally comes into contact with the channel steel 24 and is fixed to the acute angle portion of the upper end portion 21a of the rod member 21, and the body is lifted at the same position. Here, since the middle point of the line connecting the upper end portions 21a is substantially located on a perpendicular line passing through the center of gravity G of the compressor, if the left and right wire ropes W have the same length, the hook F is firmly fixed. In this state, the compressor is lifted almost horizontally, and even if the body is slightly unbalanced, the body is slightly inclined, but the hook F is further moved by the rod member 2.
The aircraft can be lifted and moved while maintaining stability without slipping and tilting greatly on the top of the vehicle.

Second Embodiment A second embodiment of the present invention is similar to the first embodiment except that
2 has a lifting hook 20 having a rod member 2
This is a compressor in which the laterally disposed aspect of 1 '(hook member) is different. As shown in FIG. 3, two rod members 21 '
Are provided within the space between the channel steels 24 at a fixed inclination angle with respect to a direction perpendicular to the recess wall surface 22a, and are laid horizontally in directions parallel to each other. Unlike the case of the first embodiment, the holes for fitting the bar members 21 ′ are provided at the same height position of the channel steel 24, and the respective rod members 2 ′
The midpoint of a line connecting the end portions 21a 'of the 1' in the central direction is substantially located on a vertical line passing through the center of gravity G of the compressor.

The second embodiment of the present invention is configured as described above, and the operation of the compressor during lifting will be described below. As shown in FIG. 3, the hook F of the wire rope W is hooked at an arbitrary position of the two bar members 21 'as in the case of the first embodiment. When the wire rope W is gradually lifted by the crane, after the wire rope W is tensioned, each hook F moves toward the center along the inclination of the rod member 21 '. The hook F finally comes into contact with the channel steel 24, and the center-direction end 21a 'of the hooking member.
And the aircraft will be lifted at the same position. Here, since the middle point of the line connecting the center direction end portions 21a 'is substantially located on a perpendicular line passing through the center of gravity G of the compressor, if the left and right wire ropes W have the same length, the hook F When the compressor is lifted almost horizontally, and the aircraft is slightly imbalanced, the aircraft will tilt slightly, but the hook F will slide on the rod member 21 '. The aircraft can be lifted and moved while maintaining stability without being greatly inclined and swinging.

Third Embodiment A third embodiment of the present invention is similar to the first embodiment except that
2 and the direction in which the bar member 21 ″ (the hooking member) is laterally provided is compressed including both aspects of the first embodiment and the second embodiment. Machine. That is, as shown in FIG.
1 ″ is a recess wall surface 22a within the interval of the channel steel 24.
Form a constant angle of inclination with respect to the direction perpendicular to
The compressors are provided in parallel with each other, and are horizontally laid in such a manner as to be inclined left and right in the height direction so that the center end 21a '' is located at the top with respect to the horizontal direction of the compressor. Have been. In addition, the midpoint of the line connecting the center-direction ends 21a '' of the rod members 21 '' is substantially located on a vertical line passing through the center of gravity G of the compressor.

The third embodiment of the present invention is configured as described above, and the operation of the compressor during lifting will be described below. As shown in FIG.
The hook F of the wire rope W is hooked at an arbitrary position 1 ''. When the wire rope W is gradually lifted by the crane, after the wire rope W is tensioned, each hook F moves upward and centrally along the inclination of the rod member 21 ″. Each hook F eventually comes into contact with the channel steel 24 and the central end 21
It is fixed to the sharp corner of a '' and lifts the aircraft at the same position. Therefore, as the action, both actions of the first and second embodiments are exhibited, and the compressor can be lifted and moved while further maintaining the stability of the body .

With respect to the configuration of the working machine described above, only the main parts necessary for explaining the present invention have been described. However, the present invention is not limited to the compressor used in the above description as long as it is an engine-driven working machine having the above configuration, and all commonly used generators such as generators, welding machines, pumps, etc. Applicable in work machines.

Further, in the above embodiment, the lifting hanging portion is
The case where it is provided at a location (when two points are hung) has been described. However, even when the working machine becomes large and three or more lifting hooks are provided, three-point hanging, four-point hanging, or the like is performed, the lifting hooks are required to satisfy the requirements of the present invention. It is possible to form.

[0023]

As described above, according to the present invention, the hanging member has the structure of the lifting hanging portion which is inclined in the height direction or the plane direction and is laterally provided in the concave portion. When the engine-driven work machine is lifted, the stability of the engine-driven work machine can be easily secured because the lifting member is fixed to one end of the hanging member. Safety at the time can be ensured. Further, since a bar member can be used as the above-mentioned hanging member, it can be easily formed without requiring additional processing .

[Brief description of the drawings]

FIGS. 1A and 1B are enlarged views of a main part showing a lifting hanging portion according to a first embodiment of the present invention, wherein FIG. 1A is a front view and FIG.
It is sectional drawing.

FIG. 2 is a perspective view of a lifting hook according to the first embodiment of the present invention;
It is a main part enlarged view showing a state in which the lifting member is hung,
(A) is a plan view, (b) is a side sectional view.

FIG. 3 illustrates a lifting hook according to a second embodiment of the present invention;
It is a main part enlarged view showing a state in which the lifting member is hung,
(A) is a plan view, (b) is a side sectional view.

FIG. 4 is a perspective view of a lifting hook according to a third embodiment of the present invention;
It is a main part enlarged view showing a state in which the lifting member is hung,
(A) is a plan view, (b) is a side sectional view .

FIG. 5 is a perspective view showing an outer shape of a conventional engine compressor.

6 is a plan view of the compressor shown in FIG.

7 is a view on arrow X of the compressor shown in FIG.

8 (a), (b), and (c) are explanatory diagrams showing a conventional compressor lifting operation.

FIG. 9 is a side cross-sectional view showing another embodiment of a lifting hook portion in a conventional compressor .

[Explanation of symbols]

C Compressor main body E Engine M Exhaust muffler B Bonnet G Center of gravity W Wire rope F Hook T Fuel tank 13 Primary exhaust pipe 15 Exhaust gas outlet 20 Lifting hook 21, 21 ', 21''Rod member (hook member) ) 21a upper portion 21a ', 21a''central direction end portion 22 recess

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Claims (1)

(57) [Claims] An engine, a working machine driven by the engine, an exhaust muffler connected to the engine in a hood, a recess provided on an upper surface of the hood, An engine-driven work machine provided with a plurality of suspending and suspending portions each including a suspending member laterally provided in the recess so as not to protrude above an upper surface portion of the bonnet. When the mold work machine is lifted, the hanging member is fixed to an end of the hanging member so that the stability of the engine-driven work machine can be ensured. An engine-driven work machine, wherein a member is provided laterally in the recess with an inclination in a height direction or a plane direction .