JP2018131928A - Soundproof box for work machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent, in a soundproof box comprising a function of an oil retaining wall, a leak oil that is generated inside of the soundproof box from being leaked outside of a machine.SOLUTION: A frame 30 that becomes a base of a soundproof box 1 consists of a frame 31 forming an outer frame and an oil retaining wall 35 that is accommodated inside of the frame 31. The oil retaining wall 35 can be put in and put out via a bottom face opening 32 of the frame 31. Oils and fats leaked from an apparatus mounted on the frame 31 can be dripped inside of the oil retaining wall 35 via a communication port 33 that is provided on a top face 34 of the frame 31. In a gap W between a sidewall 311 of the frame 31 and a sidewall 351 of the oil retaining wall 35, an upper part of a portion in which the leaked oil from the mounted apparatus can be infiltrated is covered by a guide plate 36 protruding downwards from the sidewall 311 of the frame 31 onto an opening 353 of the oil retaining wall 35. The leaked oil is guided to the inside of the oil retaining wall 35 and the leaked oil is prevented from being infiltrated to the gap W.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a soundproof box used for a working machine such as a generator or a compressor.

  On work machines such as generators and compressors, noise on operation is prevented from leaking out of the machine, and the components on the inner wall are not exposed directly to wind and rain when used outdoors. There is a so-called “soundproof working machine” in which an engine, a work machine body, a fuel tank, and other components are housed in a soundproof box, for example, a steel plate box to which a sound absorbing material or the like is attached.

  A soundproof box 100 used for such a soundproof work machine generally has a frame 130 having a function as a gantry on which component equipment is mounted and a frame 130 on which the component equipment is placed, as shown in FIG. The soundproof case 150 is covered.

  In such a soundproof box 100, the fuel leaked from the fuel tank, the oil supply pipe or the like, or the lubricating oil leaked from the engine or the working machine main body (hereinafter, these fuels and lubricating oils are collectively referred to as “oils and fats”. ”) To prevent outside leakage and contaminate the surrounding environment, the above-mentioned frame 130 has a function as an oil breakwater (oil pan) for storing leaked oils and fats. A dam-integrated soundproof box has also been proposed.

  As such an oil dam integrated soundproof box, in Patent Document 1 described later, the above-described frame 130 includes a frame 131 on which an engine, a work machine main body, and the like are mounted, and a bottomed box type that opens upward. In addition, the gantry frame 131 and the oil proofing frame 135 are mounted on and fixed to the oil proofing block 135 with bolts or the like. In the state where the connection between the dikes 135 is released, the top frame 131 can be opened at the time of inspection or the like by lifting the pedestal frame 131 together with the soundproof case 150 via the hanging metal fitting 151. It has been proposed (see FIG. 13).

  Patent Document 2 discloses that the frame 130 described above includes a frame frame 138 formed by arranging a pair of side walls 138a made of channel steel in parallel and connecting the side walls 138a with a fuel tank fixing plate 145; It is constituted by a box-shaped oil breakage 135 opened upward and accommodated between the side walls 138a of the frame frame 138 below the fuel tank fixing plate 145, and between the side walls 138a of the frame frame 138, the oil breakage 135 The side wall 138a of the frame frame 138 and the side wall 135a of the oil barrier 135 are fixed with the common bolt 161 and the nut 162 so that the oil barrier 135 can be fixed in the frame frame 138. By constructing and lifting the frame frame 138 together with the soundproof case 150 with the bolt 161 removed, the oil barrier 135 Those which make it possible to open the upper surface has been proposed (see Figure 14).

Utility Model Registration No. 3143848 JP-A-2015-214958

  In the soundproof box 100 described in the above-mentioned Patent Document 1, since the gantry frame 131 is mounted on the oil barrier 135 as shown in FIG. 13, the structure where the oil barrier 135 is in contact with the ground at the time of installation. Therefore, rust is likely to occur at the ground contact portion of the oil breakwater 135, and since the oil breakwater 135 is exposed outside the machine and there is no structure for protecting it, the work equipment is transported. At this time, the breakwater 135 is easily damaged or deformed by hitting the surrounding equipment or structures, etc., and the welded part cracks due to the formation of holes due to rust (corrosion) or deformation at the time of collision. When the oil breakage occurs, the oil barrier 135 loses its liquid-tight performance, and when oils and fats leak from the engine, the work machine main body, etc., the oil barrier embankment 135 loses its function as an oil breakwater for retaining it.

  On the other hand, in the configuration described in Patent Document 2, the oil breakwater 135 is accommodated in the frame frame 138 as shown in FIG. The side wall 138a of the frame frame 138 and the side wall 135a of the oil breakwater 135 are connected by bolts 161 so that the oil breakwater 135 can be placed in the frame frame 138 with the bottom surface floating above the grounding surface. Rust etc. can be made hard to generate | occur | produce compared with the case where the bottom face of the oil bank 135 is always earth | grounded.

  However, in the configuration in which the oil breakwater 135 is accommodated in the frame frame 138 as described above, the oil breakwater 135 is placed more than the space formed in the frame frame 138 in order to allow the oil breakwater 135 to be taken in and out. Since the oil barrier 135 is accommodated in the frame 138 because it needs to be formed small, a gap W is generated between the inner surface of the side wall 138 a of the frame frame 138 and the outer surface of the side wall 135 a of the oil barrier 135.

  Therefore, if oils and oils leaked in the soundproof box 100 enter the space W and are discharged outside the machine without being collected in the oil breakwater 135, the installation place of the soundproof type work machine and its surroundings Is contaminated by leaked oils and fats.

  Regarding this interval W, Patent Document 2 describes that it is used as a part of a drainage channel for discharging rainwater or the like that has entered the soundproof box 100 from outside the machine, as indicated by an arrow in FIG. .

  However, if rainwater that has entered the soundproof box 100 is discharged through the interval W described above, oil and fat leaking in the soundproof box 100 can also be discharged outside the apparatus through the interval W. Become.

  On the other hand, in addition to the above-described oils and fats, in the case where all of the unnecessary liquid existing in the soundproof box 100 including rainwater that has entered the soundproof box 100 is collected in the oilproof wall 135, rainwater is not collected. The amount of oils and fats that can be received by the oil breakage 135 is reduced by the amount collected, so that when fuel or lubricating oil leaks, the entire amount cannot be recovered in the oil breakage 135. There is a risk of leaking outside.

  Therefore, it is preferable that the rainwater that has entered the soundproof box 100 can be discharged outside the machine without being collected in the oil barrier 135 as much as possible.

  In the configuration of the soundproof box 100 described in Patent Document 2, the side wall 135a of the oil breakwater 135 and the side wall 138a of the frame frame 138 are fixed by being penetrated by a common bolt 161. When the liquid level of the oil and fat collected in 135 reaches the height of the bolt holes 133 and 137, particularly the height of the bolt holes 133 and 137 when the bolt 161 is removed, the oil and fats are passed through the bolt holes 133 and 137. Since the oil leaks out of the machine, the liquid level height of the oils and fats that can be recovered in the oil breakwater 135 is restricted by the positions where the bolt holes 133 and 137 are formed.

  Further, since the side wall 135a of the oil breakwater 135 and the side wall 138a of the frame frame 138 are configured to penetrate through the common bolt 161, the head of the bolt 161 is exposed to the outside of the soundproof box 100. When the working machine is used outdoors, rainwater also falls on this part, causing the bolt 161 to rust, and in the gap between the head of the bolt 161 and the side wall 138a of the frame frame 138 and the gap between the bolt 161 and the bolt hole 137. Also, the capillarity causes rainwater to enter and cause rust.

  Further, the rainwater that has entered in this way further enters the inside of the oil barrier 135 through the gap between the bolt hole 133 and the bolt 161 provided in the side wall 135 a of the oil barrier 135, and the side wall of the oil barrier 135. If corrosion or the like is caused in 135a, the liquid tightness of the oil breakwater 135 is lost, the function of storing leaked fuel or oil is impaired, and the screwed portions of the bolt 161 and the nut 162 are rusted. If the bolt 161 cannot be removed due to the fixing, a large-scale work such as fusing of the bolt is required to separate the frame frame 138 and the oil barrier 135.

  Therefore, the present invention was made to eliminate the above-mentioned drawbacks of the prior art, and in a soundproof box having a frame having a function of an oil barrier, a configuration in which the oil barrier is accommodated in the frame frame is adopted. However, an object of the present invention is to provide a soundproof box for a working machine that can more reliably prevent oils and fats leaked in the soundproof box from leaking out of the machine.

  Further, according to the present invention, in the soundproof box having the structure in which the oil breakage is accommodated in the frame frame as described above, the oil barrier is not liquid-tight while the oil breakage is easily attached to and detached from the frame frame. It is an object of the present invention to provide a soundproof box for a work machine having a structure that does not easily cause rust, breakage, deformation, or the like.

  Hereinafter, means for solving the problem will be described together with reference numerals used in the embodiment for carrying out the invention. This code is used to clarify the correspondence between the description of the claims and the description of the mode for carrying out the invention. Needless to say, it is used in a limited manner to interpret the technical scope of the present invention. It is not something that can be done.

In order to achieve the above object, the soundproof box 1 of the working machine according to the present invention includes:
In a soundproof box 1 of a working machine, which includes a frame 30 serving as a base on which components are mounted, and a soundproof case 50 covering the frame 30, and the frame 30 has a function of an oil barrier.
The frame 30 is constituted by a frame 31 that is an outer frame of the frame 30 and an oil breakwater 35 that is a bottomed frame-shaped container that is accommodated at a predetermined position in the frame 31 and opens upward. And
An opening 32 is provided in the bottom surface of the frame frame 31 so that the oil breakwater 35 can be taken in and out, and a space in the soundproof case 50 and a space in the oil breakwater 35 are formed on the upper surface 34 of the frame frame 31. A communication port 33 is provided so as to be configured to allow oil leakage generated in the soundproof case 50 to fall into the oil barrier 35,
Of the spacing W between the side wall 311 (311a to 311d) of the frame 31 and the side wall 351 (351a to 351d) of the oil breakwater 35, at least a portion located below the communication port 33, and A guide plate 36 that covers an upper portion of a part located below a device (for example, an engine, a work machine main body, and an oil supply pipe) that can be a leak source of oils and fats is provided from the side wall 311 of the frame frame 31 to the oil barrier 35. It is characterized in that it is formed on the opening 353 so as to be inclined downward (see claim 1 and FIG. 6).

  The guide plate 36 is positioned at least below the communication port 33 in the interval W between the side wall 311 (311a to 311d) of the frame 31 and the side wall 351 (351a to 351d) of the oil barrier 35. It may be provided in a portion so as to cover the interval W (Claim 2: see FIGS. 4 and 5).

  It is preferable to arrange the tip 361 of the guide plate 36 at a position lower than the edge of the upper end opening 353 of the side wall 351 of the oil breakwater 35. [Claim 3: FIGS. 4B and 5B]

Furthermore, the lower end edge 52 of the soundproof case 50 is placed and fixed on the peripheral edge of the upper surface 34 of the frame 31,
On the upper surface 34 of the frame frame 31 between the lower edge 52 of the soundproof case 50 and the opening edge 33e of the communication port 33, a water stop plate 37 is provided so as to surround the opening edge 33e of the communication port 33. (Claim 4: see FIGS. 5A and 5B).

In the soundproof box having the above-described configuration, a fixing portion 80 protruding from the inner surface of the side wall 311 (311c, 331d) of the frame frame 31 is further provided, and the fixing member 81 is fixed to the fixing piece 81 provided on the fixing portion 80. While forming the part side through-hole 82,
A fixed portion 90 fixed to the fixed portion 80 is projected on the outer surface of the side wall 351 (351c, 351d) of the oil breakwater 35, and the fastening member 60 is attached to the fixed piece 91 provided on the fixed portion 90. A fixed portion side through-hole 92 to which the
When the frame frame 31 and the oil breakwater 35 are grounded together, and when the oil breakwater 35 is accommodated in a predetermined position in the frame frame 31 in an unconnected state, the fixed piece 81 and the The fixed portion 80 and the fixed portion 90 are opposed to each other so that the fixed pieces 91 face each other in parallel, and more preferably, the fixed portion side through hole 82 and the fixed portion side through hole 92 face each other in parallel. Form
A work window 312 for attaching / detaching the fastening member 60 is provided through the side wall 311 (311c, 311d) of the frame frame 31 in the vicinity of the formation position of the fixing portion 80, and a cover that covers the work window 312 It is good also as what attaches 313 to the said work window 312 so that attachment or detachment is possible (Claim 5).

  In this case, the fixed piece 81 of the fixing portion 80 and the fixed piece 91 of the fixed portion 90 are provided in a horizontal direction, and the fixed piece 81 is placed on the upper side and the fixed piece 91 is lowered on the temporary storage. The fixed portion 80 and the fixed portion 90 can be formed so that the fixed piece 81 and the fixed piece 91 face each other on the side (see claim 6, FIGS. 7 to 9).

The fastening member 60 includes a bolt 61 that passes through both the fixed part side through hole 82 and the fixed part side through hole 92, and a nut 62 (, 63) that is screwed to the bolt 61.
The bolt 61 may be fixed to either the fixed part side through hole 82 or the fixed part side through hole 92 (see claims 7, 7, and 8).

  The distance h2 from the lower end of the frame 31 to the bottom surface of the fixed piece 81 may be longer than the distance h3 from the lower end of the oil barrier 35 to the upper surface of the fixed piece 91 (Claim 8). FIG. 7 and FIG. 9).

  Further, the fixed piece 81 of the fixed portion 80 and the fixed piece 91 of the fixed portion 90 may be provided in the vertical direction (see claim 9 and FIG. 10).

  Further, the above-described oil breakwater 35 may be provided with a leg 352 that separates the bottom surface of the oil breakwater 35 from the ground contact surface (see claims 10, 8, and 10).

  With the configuration of the present invention described above, the following remarkable effects can be obtained in the soundproof box 1 of the working machine of the present invention.

  Of the gap W between the inner surface of the side wall 311 of the frame frame 31 and the outer surface of the side wall 351 of the oil barrier 35 by the guide plate 36 described above, at least a portion located below the communication port 33 and leakage of oils and fats Covers the upper part of the part located below equipment that can be a source (for example, the engine, work machine body, and oil supply pipe), that is, the upper part of the part where oil leakage is most likely to occur, and is placed on the frame 30 If oil or grease such as fuel or lubricating oil leaks from the engine (not shown), the work machine main body (not shown), and the oil supply pipe 40 or the like provided in the engine (not shown), The guide plate 36 can effectively prevent the gap W from entering the gap W, and the oils and fats dropped on the guide plate 36 are guided by the inclination of the guide plate 36 and reliably collected in the oil barrier 35. Thus, even when the structure of the antifouling box 1 in which the oil barrier 35 is accommodated in the frame 31 where the interval W described above is generated, the surrounding environment due to leakage of oils and fats to the outside of the machine. Contamination could be prevented.

  In particular, when the formation range of the guide plate 36 is extended to at least a portion located below the communication port 33, the portion of the gap W that may leak oil is covered with the guide plate 36. It was possible to prevent oils and fats from leaking out of the machine more reliably.

  Further, in the configuration in which the water stop plate 37 standing on the upper surface 34 of the frame frame 31 is provided so as to surround the opening edge 33e of the communication port 33 provided on the upper surface 34 of the frame frame 31, the upper surface of the frame frame 31 is provided. Even when rainwater enters the soundproof box 1 by a capillary phenomenon or the like through a minute gap Δ existing at the joint between 34 and the lower edge 52 of the soundproof case 50, the rainwater enters the communication port 33. It was able to be prevented from entering the inside and falling into the oil breakwater 35 and being collected.

  As a result, almost no rainwater is collected in the oil breakwater 35, and the amount of fats and oils that can be collected in the oil breakwater 35 is reduced by the collection of rainwater. It was also possible to prevent the leakage of oils and fats outside the machine caused by overflowing all of the oil.

  Further, in the configuration in which the frame frame 31 and the oil breakwater 35 are connected by the fixing portion 80, the fixed portion 90, and the fastening member 60 in the frame frame 31, the fixing portion 80, the fixed portion 90, and None of the fastening members 60 were exposed outside the machine, and as a result, these members could be protected from rust.

  Moreover, when the oil breakwater 35 is temporarily accommodated in the frame 31, the fixed piece 81 of the fixed portion 80 and the fixed piece 91 of the fixed portion 90 face each other in parallel, and more preferably, the fixed portion side through hole 82. And the fixed portion side through-hole 92 are configured to face each other in parallel so as to be positioned on the same straight line, a fastening member via a work window 312 provided on the side wall 311 (311c, 311d) of the frame 31 The attachment / detachment work of 60 is easy.

  Further, by attaching a detachable cover 313 to the work window 312, not only can rain water and the like enter through the work window 312, but noise generated in the soundproof box 1 can be prevented. It was also possible to prevent leakage outside the machine via

  As described above, since the above-described members for connecting the frame 31 and the oil breakwater 35 are not exposed to the outside of the machine, rainwater transmitted through these members due to a capillary phenomenon or the like is prevented. No rust or corrosion of the oil breakwater 35 could be prevented.

  As shown in FIGS. 7 to 9, the fixed piece 81 of the fixed portion 80 and the fixed piece 91 of the fixed portion 90 are formed in the horizontal direction so that the fixed piece 81 is on the upper side and the fixed piece 91 is on the lower side. In this configuration, as shown in FIG. 7 or FIG. 8, either the fixed part side through hole 82 or the fixed part side through hole 92 (in the illustrated example, The bolt 61 constituting the fastening member 60 is attached in advance to the fixed portion side through-hole 92), so that the bolt 61 is inserted into the other through-hole (not shown) when the oil barrier 35 is accommodated in the frame 31. In the example, by inserting into the fixed part side through hole 82), the connection between the frame frame 31 and the oil barrier 35 is completed simply by screwing the nut 62 into the tip of the bolt 61, and the work at the time of attachment / detachment is completed. It was possible to improve the performance.

  Moreover, when the bolt 61 is attached in advance to either the fixed portion 80 or the fixed portion 90, when the frame frame 31 is lowered and the oil barrier 35 is accommodated in the frame frame 31, A function as a guide for guiding the descent of the frame 31 could be provided.

  Furthermore, as shown in FIG. 7, the distance h2 from the lower end of the frame 31 to the bottom surface of the fixed piece 81 is larger than the distance h3 from the lower end of the oil barrier 35 to the upper surface of the fixed piece 91. In the lengthened configuration, at the time of temporary housing before the frame frame 31 and the oil breakwater 35 are connected, the distance between the bottom surface of the fixed piece 81 and the upper surface of the fixed piece 91 corresponds to the above difference in distance (h2-h3). δ is formed, and the nut 62 is screwed to the tip of the bolt 61 and tightened until the bottom surface of the fixed piece 81 and the upper surface of the fixed piece 91 are joined, so that the oil breakwater 35 is suspended and the oil breakwater 35 Can be separated from the ground contact surface by an interval δ, which makes the oil breakwater 35 less susceptible to rust and corrosion than when the bottom surface of the oil breakwater 35 is always grounded. I was able to.

  As shown in FIG. 10, in the configuration in which the fixed piece 81 of the fixed portion 80 and the fixed piece 91 of the fixed portion 90 are provided in the vertical direction, the bolt 61 is attached in the horizontal direction. As a result, workability was improved.

  Further, since the bolt 61 is attached in the horizontal direction, a nut arranged on the fixed piece 81 and the fixed piece 91 arranged on the oil barrier 35 side (the fixed piece 91 in the example of FIG. 10) The work window 312 may be formed in a size that allows insertion of only a socket wrench attached to a pneumatic tool or an electric tool by attaching the bolt 61 so that the bolt 61 can be screwed. Since the work window 312 can be made small, the strength of the frame 31 can be improved, rainwater can hardly enter through the work window 312, and noise in the soundproof box 1 is difficult to leak out. Therefore, soundproofing is also improved.

  As shown in FIGS. 8 and 10, in the configuration in which the legs 352 are provided on the oil breakwater 35, the bottom surface of the oil breakwater 35 is separated from the ground contact surface, thereby preventing rusting and corrosion of the oil breakwater 35. In addition, the work of attaching and detaching the oil breakwater 35 is easy as compared with the configuration in which the oil breakwater 35 is suspended by tightening the fastening member 60 (nut 62) (see FIG. 7).

The front view of the soundproof box of this invention. The side view of the soundproof box of this invention. The partial cross section perspective view of the soundproof box of this invention. An embodiment of the soundproof box of the present invention is shown, (A) is a perspective view of the frame in a state where it is disassembled into a frame frame and an oil barrier, and (B) is a partial sectional view of the frame. The another example of the soundproof box of this invention is shown, (A) is a perspective view of the frame of the state decomposed | disassembled into the frame frame and the oil barrier, (B) is a fragmentary sectional view of a flame | frame. The perspective view of the flame | frame of the state decomposed | disassembled into the frame frame and the oil breakwater in another Example of this invention. It is explanatory drawing of the connection part of a frame frame and an oil breakwater, (A) is the state before connection (temporary accommodation), (B) is the state after connection. It is explanatory drawing of the connection part of the frame frame and an oil breakwater in a modification, (A) is the state before connection (temporary accommodation), (B) is the state after connection. It is explanatory drawing of the connection part of the frame frame and an oil breakwater in a modification, (A) is before accommodation of an oil breakwater, (B) is the state before connection (temporary accommodation), (C) is the state after connection . It is explanatory drawing of the connection part of the frame frame and an oil breakwater in a modification, (A) is before accommodation of an oil breakwater, (B) is the state before connection (temporary accommodation), (C) is the state after connection . It is explanatory drawing of the positioning by a slider, (A) is the state before accommodation of an oil barrier, (B) is the state before connection (temporary accommodation), (C) is the state after connection. It is explanatory drawing which showed another modification of the connection part of a frame frame and an oil breakwater, (A) and (B) are the structures which inclinedly arranged the fixing piece and the to-be-fixed piece, (C) is a fixing piece. The modification of the structure which has arrange | positioned the to-be-fixed piece to the orthogonal | vertical direction. The front view of the conventional soundproof box (patent document 1). The fragmentary sectional view of the conventional soundproof box (patent document 2).

  Below, the soundproof box 1 of the working machine of this invention is demonstrated, referring an accompanying drawing.

  1 and 2, reference numeral 1 denotes a soundproof box. The soundproof box 1 includes a frame 30 and a soundproof case 50 covering the frame 30, and is surrounded by the frame 30 and the soundproof case 50. It is possible to accommodate a working machine body (not shown) such as a compressor body and a generator body, an engine that drives the working machine body, a fuel tank that supplies fuel to the engine, and other necessary equipment in the space. This is the same as the conventional soundproof box described with reference to FIG.

  In the soundproof box 1 of the present invention, the aforementioned frame 30 is constituted by a frame frame 31 and an oil breakwater 35 detachably accommodated in the frame frame 31.

  Of these, the frame 31 is an outer frame of the frame 30 described above. In this embodiment, the frame 31 is formed in a frame shape that is formed by connecting four groove steels to form a rectangular shape in plan view. The upper surface 34 is configured such that an end plate 314 and horizontal members 315 and 316 are installed, and other components such as an engine and a work machine main body (not shown) can be placed [FIG. 3, FIG. ), FIG. 5 (A), FIG. 6].

  The frame 31 thus formed in a frame shape has a space for accommodating a later-described oil breakwater 35 formed therein, and an opening 32 is provided on the bottom surface thereof. The oil breakwater 35 can be taken in and out.

  In addition, a communication port 33 is formed on the upper surface 34 of the frame 31 to connect the space in the soundproof case 50 and the space in the oil barrier 35 described above when a soundproof case 50 to be described later is attached. Leakage of oils and fats such as fuel and lubricating oil from the engine and work machine main body mounted on the frame 31 and housed in the soundproof case 50, and equipment such as the piping 40 for introducing fuel and lubricating oil to these If there is, the leaked oils and fats are configured to fall and be collected in the oil breakwater 35 accommodated in the frame frame 31 through the communication port 33.

  As described above, the side walls 311 (311a to 311d) of the frame frame 31 are made of a grooved material, and the upper end of one end side in the longitudinal direction of the frame frame 31 is covered with the end plate 314. The upper surface of the frame 31 is formed by the upper surface of the flange 317 (317a to 317d) projecting outward from the upper end of (311a to 311d) and the upper surface of the end plate 314 described above. An opening edge 33e of the communication port 33 is formed by one side and each side of the flanges 317a, 317b, and 317c provided at the upper ends of the three side walls 311a, 311b, and 311c.

  The above-described soundproof case 50 is placed on the peripheral portion of the upper surface 34 of the frame 31 and on the flanges 317 (317a to 317d) provided at the upper ends of the side walls 311 (311a to 311d) of the frame 31 in the illustrated example. The lower edge 52 is placed and fixed by bolting or the like, and a crane hook is locked to a hanging metal fitting 51 (see FIG. 1) provided on the top plate portion of the soundproof case 50 and suspended by a crane. A frame frame 31 (or an oil breakwater 35 when a later-described oil breakwater 35 is connected to the frame frame 31) can be suspended at the same time as the soundproof case 50.

  The above-mentioned oil breakwater 35 accommodated in the frame frame 31 is formed in a size that can be accommodated in the frame frame 31 and has a bottomed frame type container (in the illustrated example, a bottomed bottom). It is configured as a box-shaped container) and has liquid-tightness that can store fuel, oil, and the like leaked from a fuel tank, an engine, a work machine, and the like.

  In the present embodiment, the oil breakwater 35 is formed in a rectangular shape in a plan view that is slightly smaller than the frame frame 31 formed in a rectangular shape in plan view, so that the frame frame 31 suspended by a crane or the like is The oil breakwater 35 can be accommodated in the frame frame 31 through the opening 32 formed in the bottom surface of the frame frame 31 by being lowered onto the oil breakwater 35 disposed at an appropriate position. ing.

  As described above, since the oil breakwater 35 is configured to be accommodated in the space in the frame frame 31, when the oil breakwater 35 is accommodated in the frame frame 31, the side wall 351 (351 a to 351 a. 351d) A predetermined interval W is formed between the outer surface and the inner surface of the side wall 311 (311a to 311d) of the frame frame 31, and the oils and oils leaked from the equipment accommodated in the soundproof case 50 are communicated with each other. When it falls into the frame 30 through the port 33 and flows into the gap W without being collected in the oil breakwater 35, oils and fats leak out of the machine through the gap W and the soundproof work machine This will contaminate the area around the installation site.

  In order to prevent such leakage of oils and fats occurring through the interval W, in the soundproof box 1 of the present invention, a guide protruding downward from the inner surface of the side wall 311 of the frame frame 31 toward the inner side of the frame frame 31. An apparatus accommodated in the soundproof case 50 is provided by providing a plate 36 and covering the upper portion of the above-described gap W generated between the outer surface of the side wall 351 of the oil barrier 35 and the inner surface of the side wall 311 of the frame frame 31 by the guide plate 36. Even when the more leaked oils and fats fall on the interval W, the guide plate 36 prevents the oils and fats falling on the guide plate 36 from entering the interval W. It was configured so that it could be guided and collected in the oil breakwater 35 by the inclination.

  The guide plate 36 covers all the upper portions of the interval W formed between the outer surface of the side wall 351 (351a to 351d) of the oil breakwater 35 and the inner surface of the side wall 311 (311a to 311d) of the frame frame 31, Although it is good also as what is provided in the inner surface of all four side walls 311 (311a-311d) of the frame 31, the fats and oils which leaked from at least the apparatus accommodated in the soundproof case 50 infiltrate among the space | interval W mentioned above. If it is provided in a highly probable part, it is not always necessary to provide a part where the possibility of oil leakage is low or a part where it is difficult to enter.

  In the embodiment shown in FIG. 4 (A) and FIG. 5 (A), the portion located below the communication port 33 in the interval W, that is, the frame 30 is viewed through the communication port 33 when viewed in plan. The guide plate 36 is provided so as to cover the upper portion of the gap W that is visible, and therefore, the portion of the gap W that is difficult for oils and fats to enter, and the upper portion is covered with the end plate 314. Are not covered with the guide plate 36.

  However, since oils and fats may enter the interval W below the end plate 314 along the back surface of the end plate 314, the interval W below the end plate 314 is also below the end plate 314. The upper part may be covered with a guide plate 36.

  In the example shown in FIGS. 4 (A) and 5 (A), a configuration is shown in which the upper portions of all the intervals W located below the communication port 33 are covered with the guide plates 36 (36a to 36c). Circulation of lubricating oil such as engine or work machine body, oil supply pipe for supplying fuel to the engine, lubricating oil pipe provided in the engine or work machine body, oil filter, oil cooler, etc. In the system and the like, oil and oil leaked from the equipment provided near the center of the frame 31 is less likely to fall directly into the oil breakwater 35 and enter the gap W described above. Further, the above-described guide plate 36 may be provided only on the interval W where a device that can be a leak source of oils and fats is provided above the interval W located below the interval W.

  In the example shown in FIG. 6, the pipe 40 for fuel or lubricating oil is arranged close to one end side in the width direction of the frame frame 31, so that one side wall 311 b that forms the longitudinal direction of the frame frame 31, The pipe 40 described above is arranged on the interval W generated between the one side wall 351b that forms the longitudinal direction of the bank 35, and the side wall 311b of the frame frame 31 and the anti-corrosion are corresponding to the handling of the pipe 40. Of the interval W generated between the side walls 351 b of the oil bank 35, only the portion existing between the horizontal members 315 and 316 is covered with the guide plate 36.

  As shown in FIGS. 4B and 5B, the guide plate 36 protrudes from the inner surface of the side wall 311 of the frame frame 31 so as to incline downward toward the center direction of the frame frame 31, and has its tip end 361 extends beyond the side wall 351 of the oil barrier 35 and further reaches the inner peripheral side, and the oils and fats that have fallen on the guide plate 36 are guided by the inclination provided on the guide plate 36 to provide oil It is configured to fall into the bank 35 and be collected.

  It is preferable that the tip 361 of the guide plate 36 is arranged at a position lower than the upper end 353 of the side wall 351 of the oil breakwater 35, and the implementation shown in FIGS. 4B and 5B is performed. In the embodiment, a predetermined range from the tip 361 of the guide plate 36 is bent in the vertical direction so that the tip 361 is positioned lower than the upper end 353 of the side wall 351 of the oil barrier 35.

  By disposing the tip 361 of the guide plate 36 at a position lower than the upper end 353 of the side wall 351 of the oil breakwater 35 in this way, not only the oils and fats falling from the upper side toward the interval W, but also the engine and work machine body Even when oils and fats are ejected from a device such as a pipe in an oblique direction or a lateral direction toward the above-mentioned interval W, it is suitably prevented from entering the interval W. be able to.

  1 and 2 are shown on the peripheral edge portion of the upper surface 34 of the frame frame 31 configured as described above, that is, on the flange 317 (317a to 317d) provided at the upper end of the side wall 311 (311a to 311d) of the frame frame 31. 3, 4 (B) and 5 (B), an engine (not shown) mounted on the frame frame 31 with the lower end edge 52 of the soundproof case 50 mounted and fixed. Equipment such as a work machine body (not shown) is covered by the soundproof case 50.

  From the gap Δ generated at the joint between the flange 317 (317a to 317d), which is the peripheral edge of the upper surface 34 of the frame 31, and the lower edge 52 of the soundproof case 50, rainwater or the like is generated from the outside due to a capillary phenomenon or the like. Can penetrate into the soundproof box 1.

  Therefore, in order to prevent rainwater that has entered the soundproof box 1 through the gap Δ from entering the oil barrier 35 through the communication port 33 provided in the frame 31, the present invention shown in FIG. In the configuration of the soundproof box 1, a water stop plate 37 is erected so as to surround the opening edge 33 e of the communication port 33 in order to prevent such intrusion of rainwater.

  The water stop plate 37 is erected on the upper surface 34 of the frame frame 31 at any position between the mounting position of the lower end edge 52 of the soundproof case 50 and the opening edge 33e of the communication port 33, and the gap Δ The rainwater that has entered the soundproof box 1 through the inlet is prevented from flowing into the oil barrier 35 through the communication port 33.

  In the embodiment shown in FIGS. 5A and 5B, one side and an end plate of flanges 317a, 317b, and 317c provided at the upper ends of the side walls 311a, 311b, and 311c of the frame frame 31 which form the opening edge 33e of the communication port 33. The above-described water stop plates 37 (37a to 37d) are provided on one side of 314, and rainwater that has entered through the above-described gap Δ enters the communication port 33 beyond the water stop plates 37 (37a to 37d). It is configured so that there is nothing.

  In addition, the clearance gap between the both ends in the longitudinal direction of each water stop plate 37 (37a-37d) and the longitudinal direction edge part of the adjacent water stop plate 37 (37a-37d) is welding, sticking of a sealing material, etc. This method is used to block this, so that rainwater does not pass to the communication port 33 side through a gap formed in this portion.

  In the example shown in FIGS. 5A and 5B, the structure in which the water stop plate 37 is erected on the opening edge 33 e of the communication port 33 has been described. As long as it can prevent rainwater entering inside through the gap Δ generated in the lower end edge 52 of the frame from entering the communication port 33, the position is not limited to the illustrated position. You may provide in the position.

  For example, in the example shown in FIG. 5, the water stop plate 37 d is provided on one side of the end plate 314, but this may be erected on a flange 317 d provided on the upper end of the side wall 311 d of the frame frame 31.

  In this case, the end portions of the water stop plates 37a and 37b provided on the flanges 317a and 317b of the side walls 311a and 311b of the frame 31 are extended to the position of the side wall 311d corresponding to the movement of the water stop plate 37d. To do.

  By providing the water blocking plate 37 in this way, it is possible to prevent rainwater from entering the oil breakwater 35, and thus, most of the capacity of the oil breakwater 35 can be allocated to the collection of oils and fats. The capacity of the oil breakwater 35 can be reduced as compared with the case where the oil breakwater 35 is designed in the case of entering.

  As described above, the oil breakwater 35 is inserted into the frame frame 31 configured as described above by forming the oil breakwater 35 in a slightly rectangular shape in plan view with respect to the frame frame 31. The frame 31 that is suspended by, for example, is configured so as to be lowered by being lowered onto the oil breakwater 35 disposed at an appropriate position.

  In order to allow the oil breakwater 35 to be accurately stored in a predetermined position in the frame frame 31 by such an insertion method, the frame frame 31 is attached to the oil breakwater 35 in the soundproof box 1 of the present invention. Positioning means is provided for guiding the frame 31 and / or the oil breakwater 35 to a predetermined position when lowered.

  As this positioning means, in this embodiment, as shown in FIG. 11, the side walls 351 [351a, 351b: only 351b are shown in FIG. 11A] of the oil breakwater 35 and the side walls 311 of the frame 31 311a, 311b: only 311b is shown in FIG. 11 (A)] A slider 70, which is a plate-like body having a thickness t corresponding to the interval W between the inner surfaces and having one end tapered, is connected to the oil breakwater 35. It is attached to the outer surface of the side wall 351 or the inner surface of the side wall 311 of the frame frame 31.

  When the slider 70 is attached to the outer surface of the side wall 351 of the oil barrier 35 as shown in FIG. 11, the tapered side is attached facing upward, but although not shown, the side wall 311 of the frame frame 31 is omitted. When attaching to the inner surface, attach the taper side facing down.

  By providing the slider 70 in this manner, in the configuration in which the slider 70 is provided on the side wall 351 of the oil breakwater 35, the frame frame 31 is formed on the bottom surface of the frame frame 31 when the frame frame 31 is lowered onto the oil breakwater 35. The frame 31 is lowered while the inner edge of the opening slides on the inclined surface of the slider 70, so that the oil bank 35 can be accommodated at a predetermined position in the frame 31.

  The slider 70 may be formed of a metal plate or the like, but can be positioned more smoothly by reducing the frictional resistance by forming it with a resin having self-lubricating properties such as POM (polyacetal). .

  In the illustrated embodiment, as shown in FIGS. 1 and 2, the slider 70 is attached to the upper edges of the two side walls 351 a and 351 b in the longitudinal direction of the oil barrier 35, respectively. Although the slider 70 is provided at a total of four locations, the number of sliders 70 formed is not limited to the illustrated example.

  In the example shown in the figure, the slider 70 is provided only on the longitudinal side walls 351a and 351b of the oil barrier 35 and not on the side walls 351c and 351d in the width direction. Although only the positioning in the width direction of the oil bank 35 is performed, the slider having the same structure is used as the side wall 351c, 351d in the width direction of the oil barrier 35 or the side wall 311c in the width direction of the frame 31. 311d may be provided, and the positioning of the oil breakwater 35 in the longitudinal direction may be performed by the slider 70.

  Thus, the oil breakwater 35 that is accommodated at a predetermined position in the frame frame 31 and is not yet coupled to the frame frame 31 (temporary accommodation state) is then coupled to the frame frame 31 and The combination of the frame 31 and the oil breakwater 35 constitutes the frame 30 having an oilproof structure that has both a function as a mounting table for the component equipment and a function of storing leaked fuel and the like.

  Thus, in order to enable the oil breakwater 35 to be connected to the frame frame 31, the fixing portion 80 protrudes from the inner surface of the side wall 311 of the frame frame 31 and the side wall 351 of the oil breakwater 35. A fixed portion 90 that is fixed to the fixing portion 80 is provided on the outer surface of the protrusion.

  The above-described fixing portion 80 formed on the inner surface of the side wall 311 of the frame 31 is provided with a fixing piece 81 for fixing the above-described fixing portion 90, and the fixing piece 81 is connected to the fixing portion 90. The fixed frame 81 and the fixed piece 91 are connected by the fastening member 60 in a state in which the fixed piece 91 provided is opposed to and in contact with each other so that the frame frame 31 and the oil barrier 35 can be connected. It is configured.

  The fixed piece 81 of the fixed portion 80 is provided with a through hole (fixed portion side through hole) 82 for inserting the bolt 61 constituting the fastening member 60, and the fixed piece 91 of the fixed portion 90. Similarly, a through hole (fixed part side through hole) 92 into which the bolt 61 can be inserted is provided, and the common bolt 61 is inserted into the fixed part side through hole 82 and the fixed part side through hole 92. In addition, the fixing portion 80 and the fixed portion 90 can be connected by screwing the nut 62 to the bolt 61.

  The fixed portion 80 and the fixed portion 90 accommodate the oil breakwater 35 in an unconnected state at a predetermined position in the frame frame 31 with the frame frame 31 and the oil breakwater 35 grounded together. At the time of temporary housing, the fixed piece 81 and the fixed piece 91 face each other in parallel, and preferably, the fixed part side through hole 82 and the fixed part side through hole 92 face each other in parallel with each other arranged on the same straight line. In addition, they are provided at predetermined positions on the inner surface of the side wall 311 of the frame 31 and the outer surface of the side wall 351 of the oil barrier 35, respectively.

  In the illustrated embodiment, as shown in FIGS. 1 and 2, the fixing portion 80 is provided at a total of four locations on both ends of each of the two side walls 311c and 311d in the width direction of the frame 31 and is covered. The fixing portions 90 are provided at a total of four locations on both end sides of each of the two side walls 351c and 351d in the width direction of the oil breakwater 35. The forming positions and the number of the fixing portions 80 and the fixed portions 90 are as follows. It is not limited to the illustrated example.

  As shown in FIGS. 7 to 9, the fixed portion 80 provided on the frame 31 and the fixed portion 90 provided on the oil breakwater 35 are formed by arranging a fixed piece 81 and a fixed piece 91 in the horizontal direction. , The fixed piece 81 may be arranged on the upper side and the fixed piece 91 on the lower side so as to face each other, or the fixed piece 81 and the fixed piece 91 are arranged vertically as shown in FIG. Then, the fixed piece 81 and the fixed piece 91 may be provided so as to face each other in the left-right direction on the paper surface.

  In the configuration in which the fixed piece 81 and the fixed piece 91 are provided in the horizontal direction, the bolt 61 constituting the fastening member 60 may be attached in advance to either the fixed piece 81 or the fixed piece 91. When the oil breakwater 35 is temporarily accommodated in the frame 31, the front end side of the bolt 61 has a fixed portion side through hole 82 provided in the fixed piece 81 and a fixed portion side through hole provided in the fixed piece 91. It is good also as what penetrates 92 together.

  In the example shown in FIGS. 7 and 8, the bolt 61 is attached to the fixed portion 90 side so that the bolt 61 protrudes upward. However, on the contrary, the fixing portion 80 side is shown. It is good also as what attaches the bolt 61 so that a front-end | tip may protrude below.

  The bolt 61 is fixed to the fixed portion 90 as shown in the figure, but, for example, a bolt with a head is inserted into the fixed portion side through-hole 92 with the front end facing upward, and the head of the bolt is attached to the fixed portion 90. Although it may be attached by welding or the like to the bottom surface of the fixed piece 91, in the embodiment shown in FIGS. 4 and 5, the position where the fixed portion side through hole 92 is formed on the bottom surface side of the fixed piece 91. A nut 63 is attached to the nut 63, and a bolt (head screw) without a head is screwed onto the nut 63 so as to project upward. With this configuration, the bolt 61 needs to be replaced by, for example, galling or the like. Even in this case, the bolt 61 can be replaced relatively easily.

  In this way, by attaching the bolt 61 to the fixed portion 90 in advance, when the frame frame 31 is lowered and the oil barrier 35 is temporarily accommodated in the frame frame 31, the tip of the bolt 61 is fixed to the fixing portion. The bolt 61 is lowered in a state where it is inserted into the fixed portion side through hole 82 provided at 80, so that the bolt 61 has a function as a positioning means for guiding the oil breakwater 35 to a predetermined position in the frame frame 31. be able to.

  Further, by attaching the bolt 61 in advance to the fixed portion 90 side in this way, after the frame frame 31 is lowered and the oil bank 35 is accommodated in the frame frame 31, the fixed portion side through hole 82. The operability is improved in that the connection between the frame frame 31 and the oil barrier 35 is completed only by screwing the nut 62 onto the tip of the bolt 61 protruding through the upper surface of the fixed piece 81.

  In order to enable the operation of screwing the nut 62 to the front end of the bolt 61 or the operation of removing the nut 62 screwed to the bolt 61 from the outside of the machine, the position where the fixing portion 80 is formed. A work window 312 is provided on the side wall 311 (311c) of the frame frame 31 in the vicinity.

  In the example shown in FIGS. 7 and 8 in which the nut 62 is screwed onto the tip of the bolt 61 protruding from the upper surface of the fixed piece 81, the work window 312 is connected to the side wall 311 (311c) of the frame frame 31. Among these, it is provided in a portion located above the upper surface of the fixed piece 81.

  A cover 313 is attached to the work window 312 so as to be detachable. The work window 312 is closed by the cover 313 except when the nut 62 is attached or detached. As a result, rainwater or the like is prevented from entering the soundproof box 1 and noise generated in the soundproof box 1 is prevented from leaking outside the machine through the work window 312.

  In this embodiment, the cover 313 is made of rubber, and is inserted into the work window 312 with the cover 313 deformed, and the shape is restored in the work window 312 so that the cover 313 is placed in the work window 312. It is configured so that it can be attached in close contact with.

  In the configuration in which the fixed piece 81 and the fixed piece 91 are provided in the horizontal direction, the distance h2 from the lower end of the frame frame 31 to the bottom surface of the fixed piece 81 is set from the lower end of the oil barrier 35 as shown in FIG. It may be formed longer than the distance h3 to the upper surface of the fixed piece 91.

  In this configuration, when the bolt 61 is attached in advance to the fixed portion 90 side, the distance h4 from the lower end of the oil breakwater 35 to the tip of the bolt 61 is set from the lower end of the frame frame 31 to the upper surface of the fixing piece 81. It is formed so as to be longer than the distance h1 by the length to which the nut 62 can be attached.

  With this configuration, the frame 31 is lowered and the oil barrier 35 is temporarily accommodated in the frame 31, that is, the frame frame 31 and the oil barrier 35 are both temporarily grounded. In this state, the bottom surface of the fixed piece 81 and the top surface of the fixed piece 91 are opposed to each other with a predetermined interval (δ = h2−h3), and the tip of the bolt 61 penetrates the fixed portion side. The hole 82 penetrates through the hole 82 and protrudes from the upper surface of the fixed piece 81.

  Accordingly, the nut 62 is attached to the tip of the bolt 61 protruding from the upper surface of the fixed piece 81 in this way, and the nut 62 is tightened until the bottom surface of the fixed piece 81 and the upper surface of the fixed piece 91 come into contact with each other. And the bottom surface of the oil breakwater 35 is lifted from the ground surface by the distance δ generated between the fixed piece 81 and the fixed piece 91, and the oil breakwater 35 is suspended in the frame 31. As a result, it is possible to make the oil barrier 35 less susceptible to rust and corrosion than when the bottom surface is always in contact with the ground contact surface.

  In the configuration described with reference to FIG. 7, the configuration in which the oil breakwater 35 is suspended is described as the structure in which the bottom surface of the oil breakwater 35 is separated from the ground contact surface. The configuration separated from the ground is not limited to this configuration, and other configurations may be adopted.

  In the embodiment shown in FIG. 8, legs 352 are provided on the oil breakwater 35 so that the bottom surface of the oil breakwater 35 can be separated from the ground contact surface. A groove-shaped material having a length direction in the width direction of the oil breakwater 35 is attached to the bottom surface of the bottom wall 352 as a leg 352.

  When the legs 352 are thus provided on the oil breakwater 35, the distance h2 from the lower end of the frame 31 to the bottom surface of the fixed piece 81 and the upper surface of the fixed piece 91 from the lower end of the oil breakwater 35 including the legs 352 are provided. The distance h3 'is formed to the same length, and when the oil barrier 35 is accommodated in the frame 31 by lowering the frame 31, the fixed piece 81 and the fixed piece 91 face each other in contact with each other. Can be.

  In this case, when the bolt 61 is attached in advance to the fixed portion 90 side, the distance h4 ′ from the lower end of the oil breakage including the legs 352 to the front end of the bolt 61 is set to the fixed piece 81 from the lower end of the frame 31. The nut 61 is formed to be longer than the distance h1 to the upper surface of the wire by a length that allows the nut 62 to be attached, and the bolt 61 is attached so that the tip of the bolt 61 protrudes from the upper surface of the fixing piece 81 in the above-described accommodated state. Keep it.

  As described with reference to FIG. 7, in the configuration in which the oil breakwater 35 is suspended in the frame 31, in order to separate the bottom surface of the oil breakwater 35 from the ground contact surface, a length corresponding to the distance to be separated is set. The bolt 61 is necessary, and the nut 62 must be rotated by this distance to lift the oil barrier 35, which increases the labor required for attachment / detachment.

  Further, when the lifting distance of the oil breakwater 35 is increased, if the entire distance is lifted only at one place of the fixing portion 80 having a plurality of places (four places in the embodiment), the oil breakwater is inclined or distorted and deformed. For this reason, the lifting work at each location needs to be performed in multiple steps while rotating, and the work becomes complicated. For this reason, there is a limit to increasing the separation distance.

  Moreover, since the size of the work implement becomes larger, the size of the oil breakwater 35 also increases, so that the work effort for lifting the oil breakwater 35 by the rotation of the nut 62 increases.

  In contrast, in the configuration in which the grounding surface and the bottom of the oil breakwater 35 are separated by the legs 352 provided on the oil breakwater 35 as described above, the separation distance can be increased or decreased by setting the height of the legs 352. Even when the separation distance is large, the oil breakwater 35 is not easily tilted or deformed, and the work labor is not increased.

  In the configuration described with reference to FIGS. 7 and 8 above, the bolt 61 is attached in advance to the fixed portion 90 side, and the tip of the bolt 61 is passed through the fixing portion side provided in the fixing piece 81 of the fixing portion 80. By being inserted into the hole 82, the oil breakwater 35 is positioned, particularly in the longitudinal direction.

  On the other hand, in the configuration shown in FIG. 9, positioning means for positioning the oil breakwater 35 in the longitudinal direction is provided in the fixed portion 90, thereby making positioning by the bolt 61 unnecessary.

  As such a configuration, in the embodiment shown in FIG. 9, the fixed portion 90 is provided with an extension piece 93 that protrudes downward from the end of the fixed piece 91 on the frame frame 31 side, and the frame frame of the extension piece 93 is provided. A slider 70 similar to that described with reference to FIG. 11 is attached to the surface on the 31 side so that the tapered side faces upward on the paper surface.

  In this configuration, the slider 70 is formed to a thickness t corresponding to the inner surface of the side wall 311 of the frame frame 31 when the oil breakwater 35 is accommodated at an appropriate position and the distance W ′ between the extension pieces 93. When the frame frame 31 is lowered, the inner edge of the opening formed on the bottom surface of the frame frame 31 is guided to the inclined surface of the slider 70, and the position of the oil barrier 35 is regulated by the thickness t of the slider 70. Can be accommodated in an appropriate position.

  In this configuration, unlike the configuration described with reference to FIGS. 7 and 8, it is not necessary to position the oil breakwater 35 with the bolt 61, and a nut 62 is welded to the fixed portion 90 in advance, or a caulking nut or the like is used. As shown in FIGS. 9B and 9C, the assembly work can be simplified by being able to be fastened by a bolt (hexagonal bolt) 61 inserted downward from the upper surface of the fixed piece 81 as shown in FIGS. be able to.

  In addition, since it is not necessary to stand the bolt 61 in advance in the fixed portion 90 in this way, when the frame frame 31 is lowered on the oil breakwater 35 in order to accommodate the oil breakwater 35, There is no possibility that the bolt 61 erected on the fixed portion 90 collides with the frame frame 31 and damages the bolt 61 or the frame frame 31.

  As described above, in the soundproof box 1 described with reference to FIGS. 7, 8, and 9, the configuration in which the fixing piece 81 of the fixing portion 80 and the fixing piece 91 of the fixing portion 90 are arranged in the horizontal direction is described. However, instead of this configuration, as shown in FIG. 10, the fixed piece 81 of the fixed portion 80 and the fixed piece 91 of the fixed portion 90 are both arranged in the vertical direction, and the fixed piece 81 and the fixed piece are fixed. It is good also as what is comprised so that 91 may oppose the paper surface left-right direction.

  In the configuration shown in FIG. 10, a nut 62 is attached in advance to the fixed portion side through hole 92 of the fixed portion 90 so that the bolt 61 can be screwed, so that the fixed portion side through hole 82 and the fixed portion side through hole are fixed. The frame frame 31 and the oil breakwater 35 can be easily connected by screwing the end of the bolt 61, which has penetrated the fixed piece 81 and the fixed piece 91 through the hole 92 in the horizontal direction, to the nut 62. be able to.

  Note that the screwing of the bolt 61 on the fixed piece 91 side is not limited to the configuration in which the nut 62 is attached as described above, but a female screw is provided in the fixed portion side through-hole 92 provided in the fixed piece 91 and directly screwed. You may be able to wear it.

  In the embodiment shown in FIG. 10, the fixing portion 80 connects the fixing piece 81 arranged in parallel with the inner surface of the side wall 311 of the frame frame 31, and the upper and lower ends of the fixing piece 81 and the inner surface of the side wall 311 of the frame frame 31. The fixed portion 90 is formed by the connecting pieces 84 and 85, and the fixed portion 90 is arranged parallel to the outer surface of the side wall 351 of the oil breakwater 35, the upper and lower ends of the fixed piece 91, and the oil breakwater 35. It is formed by connecting pieces 94 and 95 that connect the outer surfaces of the side wall 351. When the oil barrier 35 is accommodated in the frame 31 by lowering the frame 31, the fixing piece 81 provided on the fixing portion 80 and the fixed The fixed piece 91 provided in the portion 90 faces in a contact state, and the fixed portion side through hole 82 provided in the fixed piece 81 and the fixed portion side through hole 92 provided in the fixed piece 91 overlap each other. It is configured to be arranged.

  In this configuration, a work window 312 is formed on the side wall 311 of the frame 31 at a position facing the fixed piece 81, and the bolt 61 can be inserted horizontally through the work window 312.

  In the embodiment of FIG. 10, the two connecting pieces 94, 95 constituting the fixed portion 90 are formed in an eight-letter shape that increases the distance from the fixing piece side 91 toward the outer surface of the side wall 351 of the oil barrier 35. When the frame 31 is lowered, when the inclination of the upper connecting piece 94 provided in the fixed portion 90 comes into contact with the lower end corner portion of the fixing portion 80, this is guided to the oil breakwater 35. It is comprised so that positioning in the longitudinal direction of can be performed.

  As described above, in the configuration shown in FIG. 10, the upper connecting piece 94 provided on the fixed portion 90 is inclined to position the fixed portion 90 in the longitudinal direction of the oil barrier 35. Although the case where the function is given has been described as an example, in place of this configuration or along with this configuration, the illustration is omitted, but the lower connecting piece 85 provided in the fixing portion 80 is inclined, As a result, the fixing unit 80 may also have a function as a positioning means.

  As described above, in the configuration in which the fixed piece 81 and the fixed piece 91 are arranged in the vertical direction, the connecting bolt 61 is attached sideways, so that the work window 312 provided in the frame frame 31 at the time of connecting and disassembling work. Since the bolt 61 can be linearly inserted or removed from the work window 312, work can be performed simply by inserting a pneumatic wrench or a socket wrench attached to the power tool into the work window 312, so that workability is good.

  The work window 312 provided on the side wall 311 of the frame 31 may be provided with a hole diameter that allows a socket wrench attached to a pneumatic tool or a power tool to be inserted, and the work window 312 can be made relatively small. It is possible to improve the strength of the frame and reduce noise leakage in the soundproof box.

  As described above, in each of the configurations shown in FIGS. 7 to 10, the case where the fixed piece 81 and the fixed piece 91 are provided horizontally or vertically has been described as an example. However, FIGS. As shown in FIG. 4, the fixed piece 81 and the fixed piece 91 may be arranged in an inclined state. By forming the fixed piece 81 and the fixed piece 91 in this manner, A function as positioning means for positioning the oil barrier 35 in the longitudinal direction can also be provided.

  Further, in the configuration described with reference to FIG. 10, when the oil breakwater 35 is accommodated in the frame 31, the fixed piece 81 is disposed on the frame side and the fixed piece 91 is disposed on the oil breakwater 35 side. As described above, at the time of accommodation, the fixed piece 81 and the fixed piece are arranged so that the fixed piece 81 is on the oil barrier 35 side and the fixed piece 91 is on the frame frame 31 side, as shown in FIG. It may be configured.

1 Soundproof box 30 Frame 31 Frame frame 311 Side wall (of frame frame)
311a, 311b Longitudinal side walls (of the frame)
311c, 311d Side wall in width direction (of frame frame)
312 Working window 313 Cover 314 End plate 315, 316 Horizontal member 317 (317a-317d) Flange 32 Opening 33 Communication port 33e Opening edge (of communication port 33)
34 Top surface (of frame 31)
35 Oil breakwater 351 Side wall (of oil breakwater)
351a, 351b Longitudinal side walls (of the dike)
351c, 351d Side wall in width direction (of oil breakwater)
352 Leg 353 Opening (of oil breakwater 35)
36 (36a to 36d) Guide plate 361 Tip (of guide plate 36)
37 (37a-37d) Water stop plate 40 Piping 50 Soundproof case 51 Hanging bracket 52 Lower end edge (of soundproof case 50)
60 Fastening member 61 Bolt 62, 63 Nut 70 Slider 80 Fixed portion 81 Fixed piece 82 Fixed portion side through hole 84, 85 Connection piece 90 Fixed portion 91 Fixed piece 92 Fixed portion side through hole 93 Extension piece 94, 95 Connection Piece h1 Distance from the lower end of the frame frame to the upper surface of the fixed piece h2 Distance from the lower end of the frame frame to the bottom surface of the fixed piece h3, h3 'Distance from the lower end of the oil barrier to the upper surface of the fixed piece h4, h4' Distance from bottom edge of oil bank to tip of bolt t Thickness of slider W Space between inner wall of frame frame and outer wall of oil barrier W W 'Distance between inner wall of frame frame and extension piece of fixed part Δ Clearance (upper surface of frame frame And between the bottom edge of the soundproof case)
δ Distance between fixed piece and fixed piece 100 Soundproof box 130 Frame 131 Mounting frame 133, 137 Bolt hole 135 Oil breakwater 135a Side wall (of oil breakwater 135)
136 Mounting surface 138 Frame frame 138a Side wall (of frame frame 138)
140 Fuel tank 142, 143 Oil drain hole 145 Fuel tank fixing plate 150 Soundproof case 151 Suspension fitting 161 Bolt 162 Nut

Claims (10)

In a soundproof box of a working machine, which is composed of a frame serving as a base on which components are mounted, and a soundproof case covering the frame, and the frame has a function of an oil barrier.
The frame is constituted by a frame frame which is an outer frame of the frame, and an oil breakwater which is a bottomed frame type container which is accommodated at a predetermined position in the frame frame and opens upward,
An opening is provided on the bottom surface of the frame frame to allow the oil breaker to be taken in and out, and a communication port is provided on the upper surface of the frame frame to communicate the space in the soundproof case and the space in the oil breakwater. The oil leakage generated in the soundproof case can be dropped into the oil breakwater,
Of the interval formed between the side wall of the frame frame and the side wall of the oil breakwater, at least a part located below the communication port and a part located below the equipment that can be a leakage source of oils and fats A soundproof box for a working machine, characterized in that a guide plate covering an upper portion of the frame frame is formed so as to protrude downward from the side wall of the frame frame onto the opening of the oil barrier.   2. The work implement prevention according to claim 1, wherein the guide plate covers at least a portion of the distance between the side wall of the frame frame and the side wall of the oil breakwater located below the communication port. Sound box.   The soundproof box for a working machine according to claim 1 or 2, wherein a tip of the guide plate is disposed at a position lower than an upper end of a side wall of the oil barrier. The lower end edge of the soundproof case is placed and fixed to the peripheral edge of the upper surface of the frame frame, and
The water stop plate surrounding the opening edge of the communication port is erected on the upper surface of the frame frame between the lower end edge of the soundproof case and the opening edge of the communication port. 3. A soundproof box for a working machine as set forth in any one of 3 above. A fixing portion protruding from the inner surface of the side wall of the frame frame is provided, and a fixing portion side through hole for attaching a fastening member is formed on a fixing piece provided on the fixing portion,
A fixed portion fixed to the fixed portion protrudes from the outer surface of the side wall of the oil breakwater, and a fixed portion side through hole for attaching the fastening member is formed in a fixed piece provided in the fixed portion,
The fixed piece and the fixed piece are in parallel during temporary storage when the oil barrier is unconnected in a predetermined position in the frame frame with the frame frame and the oil barrier connected to the ground. Forming the fixed part and the fixed part so as to face each other,
A work window for attaching and detaching the fastening member is provided through the side wall of the frame frame near the position where the fixing portion is formed, and a cover covering the work window is detachably attached to the work window. The soundproof box for a working machine according to any one of claims 1 to 4.   The fixed piece of the fixed portion and the fixed piece of the fixed portion are provided in a horizontal direction, and the fixed piece and the fixed portion are provided with the fixed piece on the upper side and the fixed piece on the lower side during the temporary housing. 6. The soundproof box for a working machine according to claim 5, wherein the fixed portion and the fixed portion are formed so that the pieces face each other. The fastening member comprises a bolt that penetrates both the fixed part side through hole and the fixed part side through hole, and a nut that is screwed to the bolt,
The soundproof box for a working machine according to claim 6, wherein the bolt is fixed to either the fixed part side through hole or the fixed part side through hole.   The working machine according to claim 6 or 7, wherein a distance from a lower end of the frame frame to a bottom surface of the fixed piece is longer than a distance from a lower end of the oil breakwater to an upper surface of the fixed piece. Soundproof box.   The soundproof box for a working machine according to claim 5, wherein the fixed piece of the fixed portion and the fixed piece of the fixed portion are provided in a vertical direction. The soundproof box for a working machine according to any one of claims 1 to 9, wherein a leg for separating the bottom surface of the oil breakwater from the ground contact surface is provided on the oil breakwater.

Images