JP4791950B2 - Engine-driven work machine - Google Patents

Description

  The present invention relates to an engine-driven work machine.

  As an engine-driven work machine, for example, there is an engine-driven generator that supplies electric power to various load devices at a construction site or the like. Such an engine-driven generator is configured such that an engine, a generator main body driven by the engine, and other auxiliary machines are housed in a soundproof case (usually including a sound absorbing material), so that noise from the engine, etc. Is configured to prevent leakage to the outside.

  In such an engine-driven work machine represented by an engine-driven generator, when oil such as engine fuel or lubricating oil, or leakage such as cooling water (coolant) leaks and scatters inside the soundproof case. In addition, the inside of the soundproof case may be contaminated and also leaked outside the soundproof case. Furthermore, it is also conceivable that rainwater flows into the soundproof case and leaks out of the soundproof case together with oils in the soundproof case. In such a situation, the place where the engine-driven work machine is installed is contaminated, and further, it adversely affects the external environment such as nearby soil and rivers. Therefore, it is an issue to appropriately handle the leakage from the soundproof case to prevent adverse effects on the external environment.

In order to cope with such a problem, conventionally, there has been disclosed a technique for preventing leakage of leakage by providing a transportation platform with a fuel tank inserted in the lower part of an engine-driven work machine and blocking the bottom surface portion. (For example, refer to Patent Document 1).
Japanese Patent No. 3300933 (paragraph 0022 to paragraph 0024)

  However, according to the conventionally disclosed technology, since a large transport stand is separately required under the engine-driven work machine, there is a problem that the structure is complicated and the enlargement is unavoidable. .

  Then, this invention makes it a subject to provide the engine drive type working machine which can prevent the outflow of a leaking substance, without having a complicated structure.

In order to solve the above problems, an invention according to claim 1 is directed to an engine, a work machine main body driven by the engine, an outer frame formed by a frame portion, a base for fixing the engine, and the work machine main body. An engine-driven work machine in which a floor plate is fixed to the base below the pedestal for fixing the engine and the pedestal for fixing the work implement main body, the base plate having a pedestal for fixing the engine. Is a plate-like member thinner than the height of the frame part, and is provided so as to incline downward from one side of the frame part toward the opposite frame part, and the lowest part of the floor board or its A discharge port is provided in the vicinity, and when the lowest portion is at an edge of the floor board, the edge is bent upward, the base is provided with an oil adsorbent, and the oil adsorbent is an inlet of the discharge port. Ma It is characterized Rukoto placed at the outlet.

According to the first aspect of the present invention, the oil leaked from the engine and the work machine main body falls on the floor plate, flows to the lowest portion along the inclined portion of the floor plate, and drops from the discharge port. Moreover, according to the invention concerning Claim 1, there exists an effect that the oil etc. which leak from an engine and a working machine main body are collect | recovered by an oil adsorbent before entering a discharge port or when exiting a discharge port.

  The invention according to claim 2 is characterized in that the surface of the floor board is subjected to oil and / or water repellent treatment.

  According to the second aspect of the present invention, the surface of the floor board exhibits the effect that oil leaking from the engine and the work machine body easily flows and the effect of preventing the surface of the floor board from rusting (rust prevention effect).

The invention according to claim 3 is characterized in that the base has a visual recognition means for visual recognition in a state where the oil adsorbent is provided in the base.

According to the invention concerning Claim 3, there exists an effect that an oil adsorbent can be visually recognized in the state with which the oil adsorbent was equipped in the base.

The invention according to claim 4 is characterized in that the oil adsorbing material is held by a bracket member, and the bracket member is detachably held by the frame portion of the base.

According to the invention concerning Claim 4 , there exists an effect that an oil adsorption material can also be easily attached or detached to a base by attaching or detaching a bracket member to a base.

In the invention according to claim 5 , the oil adsorbing material is formed by stacking two or more oil adsorbing mats having a plate shape in the vertical direction, and includes at least one sheet including the uppermost one. The oil adsorption mat is provided with a through-hole penetrating from the upper surface to the lower surface, and when the through-holes having different openings are provided in both of the oil adsorption mats that are in contact with each other at the top and bottom, the opening of the through-hole is at least one of them. The parts are overlapped.

According to the fifth aspect of the present invention, oil leaking from the engine and work machine main body can be accumulated in the through-hole of the oil adsorbing mat that forms the oil adsorbing material, and the leaking oil can penetrate into the overlapping portion. There is an effect.

According to a sixth aspect of the present invention, the oil adsorbing material is formed by including an oil adsorbing mat having a plate shape and a plurality of oil adsorbing chips each being a chip-like lump. The adsorption chip is housed in a container formed of a net-like body and is provided on a flat portion of the oil adsorption mat.

According to the invention concerning Claim 6 , there exists an effect that the oil etc. which leak from an engine and a working machine main body can be osmose | permeated in the clearance gap between several oil adsorption chips.

  ADVANTAGE OF THE INVENTION According to this invention, the engine drive type working machine which can prevent the outflow of a leaking substance can be provided, without having a complicated structure.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings as appropriate. The engine-driven working machine to which the present invention is applied is not limited, but an engine-driven generator (hereinafter simply referred to as a generator) will be described as an embodiment.

  FIG. 1 is a diagram illustrating a configuration of a generator according to the present embodiment. Here, FIG. 1 shows a state in which a soundproof cover (not shown) is removed. As shown in FIG. 1, in a generator 1 according to the present embodiment, an engine 1 a and a generator main body (worker main body) 1 c are fixed to a base 2. And the output shaft 1d which outputs rotation of the engine 1a and the generator main body 1c are connected, and the generator main body 1c is driven by the rotation of the engine 1a to generate electric power.

  A fuel tank 1b is connected to the engine 1a, and supplies fuel such as light oil to the engine 1a. In addition, although not shown in the figure, a device for controlling the driving of the engine 1a and the generator main body 1c, a device for managing fuel supply to the engine 1a (hereinafter collectively referred to as auxiliary machinery), etc. Machine 1 is configured.

  FIG. 2 is a perspective view showing the base. The base 2 is, for example, arranged with four frame portions 21 made of sheet metal members standing upright so that the planar shape becomes a substantially square shape, and fixing the end portions of the respective frame portions 21 by a method such as welding. The outer frame 20 is formed. At this time, one of the edges of the outer frame 20 forming the planar shape is the upper end, and the other is the lower end. The base 2 is installed on an installation surface such as the ground so that the lower end is on the installation surface side. Therefore, the upper end is on the upper side and the lower end is on the lower side with respect to the installation surface. Further, the distance between the upper end and the lower end becomes the height of the outer frame 20.

Further, in the following description, the generator 1 (see FIG. 1) has a front F as a side where the engine 1a is on the right side and a generator main body 1c is on the left side, and a side facing the front F as a back B. To do. Furthermore, when viewed from the front, the right side is the right side R and the left side is the left side L. Further, the right surface R and the left surface L may be collectively referred to as both side surfaces.
The length between both side surfaces is referred to as the width, and the length from the front F toward the back B is referred to as the depth.

The outer frame 20 has, for example, a bar with a U-shaped cross section facing the front F so that it is parallel to the frame portions 21 on both sides from the center of both sides to the right. An engine fixing base 22 is formed by being horizontally fixed from the frame portion 21 to the frame portion 21 on the back surface B. The engine 1a (see FIG. 1) is fixed to the engine fixing base 22 by appropriate means such as fixing with bolts and nuts via vibration-proof rubber, for example.
Further, the outer frame 20 is, for example, a bar having a U-shaped cross section, for example, with its opening facing down so as to be parallel to the frame portions 21 on the left and right sides from the center of both side surfaces. A generator main body fixing base 23 is formed by being horizontally fixed from the frame portion 21 of F to the frame portion 21 of the back surface B. The generator main body 1c (see FIG. 1) is fixed to the generator main body fixing base 23 by an appropriate means such as fixing with bolts and nuts via vibration-proof rubber, for example.

  A floor plate 24 is fixed below the engine fixing base 22 and the generator main body fixing base 23.

  (A) of FIG. 3 is a figure which shows the structure of a floor board. As shown in FIG. 3A, the floor plate 24 is made of a sheet metal member having a substantially same shape as the planar shape of the outer frame 20, and has a bottom surface 24b having a certain width at the center and both sides thereof. It is configured to include two inclined surfaces 24a, 24a formed by bending. The bottom surface 24b is a plane having a certain width. In addition, the inclined surfaces 24a and 24a are planes bent and raised on both sides of the bottom surface 24b with a gentle inclination with respect to the bottom surface 24b. The inclination angle of the inclined surface 24a is not particularly limited. However, if the inclination is abrupt, the overall height of the generator 1 (see FIG. 1) increases. Therefore, in the present embodiment, the inclined surface 24a is the highest of the inclined surface 24a side and the bottom surface 24b side of the inclined surface 24a as a slant that allows the leaked material described later to flow smoothly and suppress the height of the generator 1. The height difference was 13 mm with respect to the horizontal distance of the portion of 650 mm. Here, in the floor plate 24, the surface on which the inclined surface is bent and raised is the upper surface, and the opposite surface is the lower surface.

  In each inclined surface 24a, at least one of the sides facing the bottom surface 24b from the highest portion from the bottom surface 24b is bent and raised substantially vertically to form two inclined surface walls 24d and 24d. . Furthermore, one side of the bottom surface 24b between the two inclined surface walls 24d and 24d is bent and raised substantially vertically to form the bottom surface wall 24e. The inclined surface wall 24d and the bottom surface wall 24e correspond to the end edges recited in the claims.

  Here, a side on which the inclined surface wall 24d and the bottom surface wall 24e are formed is a floor plate front surface F2, and a side opposite to the floor plate front surface F2 is a floor plate back surface B2. Further, when viewed from the floor board front side F2, the right side is the floor board right side R2, and the left side is the floor board left side L2. And the length between floor board right side R2 and floor board left side L2 is called floor board width, and the length which went to floor board back B2 from floor board front F2 is called floor board depth.

  In FIG. 3, the floor plate 24 is bent and raised at one place on one side to form the inclined surface 24a. However, this structure is not limited. For example, the inclined surface 24a is further bent and raised to form an inclined surface composed of a plurality of inclined surfaces. The surface 24a may be formed. Furthermore, it may be a structure having an inclined surface which is bent and raised so that the floor board back surface B2 side is lifted and is inclined from the floor board back surface B2 side to the floor board front surface F2 side.

  In addition, one discharge port 24c is opened in the bottom surface 24b. In FIG. 3A, the discharge port 24c is shown in a circular shape, but the shape of the discharge port 24c is not limited, and may be other shapes such as a semicircle or a rectangle. And the saucer 30 which hold | maintains the saucer 30 (refer (a) of FIG. 5) of the oil content discharge | release mechanism 3 mentioned later detachably in the position equivalent to the lower side of the discharge port 24c in the surface below the bottom part surface 24b. A guide 24f is provided. (B) of FIG. 3 is a figure which shows a saucer guide when a floor board is seen from the lower surface.

  As shown in FIG. 3B, the tray guide 24f is provided on the lower surface of the bottom surface 24b at a position where the discharge port 24c is open. The saucer guide 24f includes two vertical guides 24f1 and 24f1 that are erected in a direction orthogonal to the bottom surface wall 24e, and a bottom guide 24f2 that is horizontally mounted between the two vertical guides 24f1 and 24f1. The bottom surface wall 24e side is open and has an opening 24f3.

  Here, as will be described later, the bottom surface 24b has an outer frame 20 (see FIG. 5) that has a gentle slope from the upper side of the outer frame 20 toward the lower end side from the floor plate back surface B2 toward the floor plate front surface F2. 4). Accordingly, the vertical guide 24f1 may be configured such that the height of the vertical guide 24f1 gradually increases from the floor plate front surface F2 side, and the bottom guide 24f2 may be configured to be gently inclined with respect to the bottom surface 24b. By configuring in this way, the inclination angle of the bottom guide 24f2 with respect to the bottom surface 24b and the inclination angle of the bottom surface 24b, which will be described later, from the upper end side to the lower end side of the outer frame 20 are matched. When the frame is fixed to the outer frame 20, the bottom guide 24f2 can be leveled. The tray guide 24f as described above is formed, for example, by fixing a sheet metal member bent in a substantially U shape to the floor plate 24 by a method such as welding with the opening side facing the bottom surface 24b side. .

  FIG. 4 is a schematic diagram showing a mode in which the floor board is fitted into the outer frame. As shown in FIG. 4, the floor plate 24 is fitted into the outer frame 20 so that the floor plate front surface F <b> 2 is on the front surface F side of the outer frame 20 and the lower surface is on the lower end side. The inclined surface wall 24d and the bottom surface wall 24e are in contact with the inside of the frame portion 21 on the front F side of the base 2, the floor plate back surface B2 is in contact with the inside of the frame portion 21 on the back surface B of the outer frame 20, and the floor plate right surface R2 and the floor plate The left surface L2 is preferably in contact with the right surface R of the outer frame 20 and the inside of the frame portion 21 of the left surface L.

  Further, the floor plate 24 is placed and fixed on the outer frame 20 such that the floor plate rear surface B2 is closer to the upper end of the outer frame 20 than the floor plate front surface F2, and the bottom surface 24b and the two inclined surfaces 24a, 24a are the floor plate. A configuration in which the outer frame 20 is gently inclined with respect to the height direction from the back surface B2 toward the floor plate front surface F2 is adopted. Here, the inclination angle is not limited, but if the inclination is abrupt, the overall height of the generator 1 (see FIG. 1) is increased. Therefore, in the present embodiment, the bottom surface 24b and the two inclined surfaces 24a and 24a are inclined so that the leaked material described later flows smoothly and the height of the generator 1 is suppressed. The horizontal distance between the front face F2 and the floor board back face B2 is 600 mm, and the height difference is 5 mm. In the present embodiment, the bottom surface 24b is inclined with respect to the height direction of the outer frame 20 together with the inclined surface 24a of the floor plate 24, which corresponds to the inclined portion described in the claims. In the present embodiment, the end edge of the bottom surface 24b on the floor plate front surface F2 side is the lowest part with respect to the height of the outer frame 20 (the lowest end side of the outer frame 20). Therefore, as described above, the edge of the bottom surface 24b on the floor plate front surface F2 side is bent upward to form the bottom surface wall 24e. And in this embodiment, the discharge port 24c is provided in the bottom surface wall 24e side so that it may be located in the vicinity of the lowest part.

  Since the floor plate 24 is configured as described above, the floor plate depth of the floor plate 24 is substantially equal to the length from the inside of the frame portion 21 on the front surface F of the outer frame 20 to the inside of the frame portion 21 on the back surface B. It is assumed that it is substantially equal to the inner length of the frame portion 21 on both side surfaces of the outer frame 20. Here, the method of fixing the floor plate 24 to the frame portion 21 of the outer frame 20 is not limited, but for example, welding may be considered.

  An oil discharge mechanism is provided on the front F side of the outer frame 20. (A) of FIG. 5 is a figure which shows an oil-component discharge mechanism. As shown in FIG. 5 (a), the oil discharge mechanism 3 includes a rectangular oil discharge port 21a that opens in the frame portion 21 on the front F side of the outer frame 20, and a tray that is inserted into the oil discharge port 21a. 30. When the floor plate 24 is fixed, the oil discharge port 21a is opened at the same position as the opening 24f3 of the tray guide 24f shown in FIG. 3B. And it is preferable that the oil discharge port 21a has a shape having a height and a width that are equal to or greater than the height and width of the opening 24f3 of the tray guide 24f. Furthermore, the lower side of the oil discharge port 21a is preferably the same height as the bottom guide 24f2 (see FIG. 3B) of the tray guide 24f when the floor plate 24 is fitted into the outer frame 20.

  (B) of FIG. 5 is a figure which shows a saucer. The saucer 30 is a member corresponding to the bracket member described in the claims. In the present embodiment, the saucer frame 31 is erected in the three directions of the saucer bottom 33, and the front lid 32 is erected on one side. In addition, it has a box-like shape that opens upward. And the width | variety of the saucer 30 shall be substantially equivalent to the width | variety of the opening part 24f3 of the saucer guide 24f shown to (b) of FIG. The saucer 30 is formed by bending, for example, three sides of a substantially square-shaped sheet metal member to the same height and lower than the height of the opening 24f3 (see FIG. 3B) of the saucer guide 24f. 31 is formed. The front lid 32 can be fixed to the side where the tray frame 31 is not formed.

  The front lid 32 preferably has a shape having a height and a width that are equal to or greater than the height and width of the oil outlet 21a (see FIG. 5A). Since the front lid 32 has such a shape, when the tray 30 is inserted into the oil discharge port 21a, the front lid 32 comes into contact with the periphery of the oil discharge port 21a, and the tray 30 is completely connected to the oil discharge port 21a. No more getting in. The front lid 32 may be configured by bending and raising a sheet metal plate material forming the tray 30, or may be configured by fixing another plate material by a method such as welding.

  The front lid 32 is characterized in that at least one moisture discharge port 32a is opened at the same height as the tray bottom 33. In the present embodiment, as shown in FIG. 5B, there are three moisture outlets 32a, 32a, 32a.

  (C) of FIG. 5 is a figure which shows the aspect by which an oil adsorption material is loaded into a saucer. As shown in (c) of FIG. 5, an oil adsorbent 34 is loaded (held) in the tray 30. The oil adsorbent 34 is not particularly limited. Moreover, it is preferable that the oil adsorbent 34 has a structure that is detachably loaded into the tray 30. As described above, the oil adsorbent 34 is detachably loaded into the tray 30 so that, for example, when the oil adsorbent 34 is contaminated, only the oil adsorbent 34 can be replaced.

  Further, since at least one moisture discharge port 32a is opened in the front lid 32 of the tray 30, the oil adsorbent 34 loaded in the tray 30 is easily visually recognized through the moisture discharge port 32a. . That is, even when the tray 30 is inserted into the outer frame 20 (see FIG. 5A), the oil adsorbent 34 can be visually recognized from the outer periphery of the outer frame 20, for example, The degree of dirt can be confirmed. This means that the oil adsorbent 34 is visually recognized through the moisture discharge port 32a in a state where the oil adsorbent 34 is provided on the base 2 (see FIG. 2) configured using the outer frame 20. Show. Therefore, the moisture outlet 32a corresponds to the visual recognition means described in the claims.

  FIG. 6A is a cross-sectional view taken along line AA in FIG. In addition, (a) of FIG. 6 shows the aspect in which the saucer 30 is inserted in the outer frame 20. As shown in FIG. 6A, the tray 30 is inserted into a tray guide 24 f provided on the floor plate 24 through an oil discharge port 21 a that opens in the frame portion 21 of the outer frame 20. By configuring in this way, the tray 30 can be pulled out from the outer frame 20 as required by the two-dot chain line in FIG. It will be. When the tray 30 is inserted into the tray guide 24f, the tray 30 is placed vertically below the discharge port 24c that opens in the floor plate 24.

  Here, in the present embodiment, as will be described later, oil or the like leaking from the engine 1a and the generator main body 1c (see FIG. 1) drops from the upper surface of the bottom surface 24b through the discharge port 24c. The upper surface of the discharge port 24c is an inlet, and the lower surface is an outlet. Accordingly, the tray 30 is placed at the outlet of the discharge port 24c. And since the oil adsorption material 34 (refer FIG.5 (c)) is loaded in the saucer 30, in this embodiment, the oil adsorption material 34 will be arrange | positioned at the exit of the discharge port 24c.

  The tray 30 may be configured to be fixed by screwing or the like when inserted into the outer frame 20. (B) of FIG. 6 is a figure which shows the aspect which fixes a saucer to an outer frame. As shown in FIG. 6B, for example, two screws are attached to a portion of the front lid 32 that comes into contact with the periphery of the oil outlet 21 a of the outer frame 20 when the tray 30 is inserted into the outer frame 20. The holes 32b and 32b are opened. Then, two screw holes 21b and 21b are provided at positions corresponding to the screw holes 32b around the oil discharge port 21a of the outer frame 20. When the tray 30 is inserted into the outer frame 20, the screw member S is inserted from the screw fixing hole 32 b, the screw member S is tightened into the screw hole 21 b, and the front lid 32 is fastened to the outer frame 20. . By configuring in this way, the tray 30 is fixed to the outer frame 20 and will not come off unexpectedly, for example, due to vibration or the like.

  4 to 6, the floor plate 24 is fixed to the outer frame 20 and the oil discharge mechanism 3 is formed. Further, as shown in FIG. 2, the engine fixing base 22 and the generator main body fixing base are formed. 23 is fixed to form the base 2. Then, the engine 1a (see FIG. 1) is placed on the engine fixing base 22, and is fixed by appropriate means such as fixing with bolts and nuts via vibration proof rubber, for example, and the generator body 1c (FIG. 1). Is mounted on the generator main body fixing base 23 and fixed by appropriate means such as fixing with bolts and nuts via vibration-proof rubber, for example. Further, the generator 1 shown in FIG. 1 is configured by including a fuel tank 1b (see FIG. 1) and other auxiliary machines (not shown).

In the generator 1 configured as shown in FIG. 1, rainwater that has flowed into a soundproof cover (not shown) that covers the generator 1, oil that has leaked from the engine 1 a and the generator main body 1 c during operation, or moisture A mixture of oils (hereinafter collectively referred to as leaked material) falls on the upper surface of the floor plate 24. (A) of FIG. 7 is a figure which shows the aspect in which the leakage which fell to the upper surface of a floor board flows. As shown in FIG. 7 (a), the leakage that has fallen on the bottom surface 24b of the floor board 24 is caused by the inclination of the floor board 24 from the floor board back surface B2 side to the floor board front face F2 side as indicated by the arrow. It flows toward.
In addition, the leakage that has fallen on the inclined surface 24a of the floor plate 24 flows toward the floor plate front surface F2 side due to the inclination of the floor plate 24 from the floor plate rear surface B2 side to the floor plate front surface F2 side, and the inclined surface 24a with respect to the bottom surface 24b. It also flows toward the bottom surface 24b due to the inclination. The leaked material that has flowed to the bottom surface 24b flows toward the floorboard front surface F2 as indicated by the arrow due to the inclination of the floorboard 24 from the floorboard rear surface B2 side to the floorboard front surface F2 side. That is, the upper surface of the floorboard 24 All of the spilled material that has fallen down flows toward the floor plate front surface F2 side of the bottom surface 24b.

  Here, a coating process having an oil and / or water repellency effect may be applied to the surfaces of the inclined surface 24a and the bottom surface 24b through which the leaked material flows. By performing the coating process, the surfaces of the inclined surface 24a and the bottom surface 24b are more likely to leak the leakage, so that the leakage effectively flows into the discharge port 24c, and the leakage is less likely to adhere. The surface of 24a and the bottom part surface 24b produces the effect that it becomes difficult to become dirty. Moreover, there exists an effect (rust prevention effect) which prevents the surface of the floor board 24 from rusting. The type of coating treatment is not limited, but for example, a coating of Teflon (registered trademark) is conceivable.

FIG. 7B is a cross-sectional view taken along the line CC in FIG. As shown in FIG. 7B, a discharge port 24c is formed on the floor surface front F2 side of the bottom surface 24b. Therefore, the leaked material that has flowed to the floor plate front surface F2 side of the bottom surface 24b falls from the discharge port 24c. Since the tray 30 is placed vertically below the discharge port 24 c, the leaked material that has dropped from the discharge port 24 c is collected in the tray 30.
Further, for example, the leakage that has reached the bottom surface wall 24e through the periphery of the discharge port 24c and has not fallen into the discharge port 24c is, as shown in FIG. The surface 24b accumulates in the bent portion of the bottom surface wall 24e formed on the floor plate front surface F2 side. Further, for example, even when the leaked material flows with momentum, the leaked material that does not fall into the discharge port 24c is stopped by the bottom surface wall 24e and collected in the bent portion of the bottom surface wall 24e. Therefore, when welding the floor plate front surface F2 side of the bottom surface 24b to the frame portion 21 of the outer frame 20, the leaked material is not a gap between the bottom surface 24b and the frame portion 21 even if a watertight structure is not obtained by continuous welding. There will be no leakage.
Thus, in the present embodiment, the leaked material that has flowed to the floor plate front surface F2 side of the bottom surface 24b is collected in the tray 30 or collected in the bent portion of the bottom surface wall 24e, and the generator 1 (FIG. 1). It has an excellent effect of not flowing out to the outside. Further, since there is one discharge port 24c, it is sufficient to manage only one discharge port 24c (checking for clogging or dirt, etc.), and an excellent effect is achieved that the management of the generator 1 is facilitated.

  (C) of FIG. 7 is a figure which shows the leaked material collect | recovered by a saucer. As shown in (c) of FIG. 7, an oil adsorbent 34 is loaded in the tray 30. Therefore, the leaked material that has dropped from the discharge port 24 c (see FIG. 7B) falls on the oil adsorbent 34 of the tray 30. Since the oil adsorbent 34 has a performance of adsorbing only the oil component, for example, when the leaked material is a mixture of oil and moisture, the oil and moisture of the leaked material can be separated. That is, the oil component is adsorbed by the oil adsorbent 34 and can be separated from moisture. And as shown to (c) of FIG. 7, since only a water | moisture content can be discharged | emitted from the water | moisture-content discharge port 32a, there exists an outstanding effect that the environmental pollution by an oil component can be prevented.

Conventionally, when the inside of the generator 1 (see FIG. 1) is cleaned, the generator 1 is inclined and discharged because a large amount of water and dirty oil are difficult to discharge. On the other hand, in the generator 1 (see FIG. 1) in the present embodiment, a large amount of water and dirty oil used for cleaning the inside are separated by one outlet 24c (in FIG. 7) due to the inclination of the floor plate 24. Since it is discharged through (see (a)), it has an excellent effect that it is easy to treat sewage.
Further, when washing the inside of the generator 1, the tray 30 is removed from the outer frame 20. Thus, by removing the tray 30 from the outer frame 20 during cleaning, it is possible to prevent the oil adsorbent 34 from being contaminated by dirty oil generated during cleaning.

  Further, even when the tray 30 is inserted into the outer frame 20 (see FIG. 7A), the oil adsorbent 34 is disposed through the moisture discharge port 32a that is open to the front lid 32 of the tray 30. The degree of contamination can be confirmed, and the replacement time of the oil adsorbent 34 can be easily known. Since the oil adsorbing material 34 is loaded in a receiving tray 30 that is detachably held on the outer frame 20, the oil adsorbing material 34 can be easily replaced by removing the receiving tray 30 from the outer frame 20. Has an excellent effect.

  In addition, when the oil adsorbent 34 and a member that reacts with oil (for example, oil sensitive paper that changes color in response to oil) are used in combination, the contamination of the oil adsorbent 34 can be more clearly confirmed.

  As described above, the base 2 (see FIG. 2) of the generator 1 (see FIG. 1) according to the present embodiment has a structure that has an inclined portion to fix the floor board to the base, a structure that bends the edge, and a simple saucer. It is comprised from simple structures, such as a structure provided with, and there exists an outstanding effect that the outflow of the leakage material to the exterior of the generator 1 can be prevented, without having a complicated structure.

Next, the suitable form of the oil adsorption material 34 used for the generator 1 (refer FIG. 1) concerning this embodiment is demonstrated. (A) of FIG. 8 is a figure which shows the structure of an oil adsorption material. As shown in FIG. 8 (a), the oil adsorbent 34 is formed in a laminated structure in which at least two or more plate-shaped oil adsorption mats 34a are stacked one above the other (FIG. 8 (a). ) Shows an example in which three oil adsorption mats 34a are stacked). The uppermost oil adsorption mat 34a1 is provided with a through hole 34b1 penetrating from the upper surface to the lower surface. Further, the oil adsorption mat 34a2 in contact with the lower side of the oil adsorption mat 34a1 is provided with a through hole 34b2 penetrating from the upper surface to the lower surface. The through holes 34b1 and 34b2 partially overlap, and the through holes 34b1 and 34b2 communicate with each other. As described above, the adsorbent opening 34c having an upper opening is formed in the oil adsorbent 34 by the through holes 34b1 and 34b2 that are partially communicated with each other.
In FIG. 8A, the through holes 34b1 and 34b2 are shown in a circle, but this shape is not limited and may be other shapes such as a rectangle.

  The oil adsorbent 34 configured as shown in FIG. 8A is loaded into the tray 30 and inserted into the outer frame 20 as shown in FIG. 8B. FIG. 8B is a cross-sectional view showing a state in which the oil adsorbing material is loaded in the tray and inserted into the outer frame. In addition, as for the oil adsorbent 34, as shown in FIG.8 (b), it is preferable that the adsorbent opening part 34c is located vertically under the discharge port 24c. As described above, the adsorbent opening 34c is positioned vertically below the discharge port 24c, so that a leaking substance falling through the discharge port 24c can be dropped to the adsorbent opening 34c.

The oil adsorbent 34 has a slow oil adsorption and moisture permeation rate, and it takes time to absorb the oil and the water is repelled. It may overflow.
In the present embodiment, the oil adsorbent 34 has an adsorbent opening 34c, and even a large amount of leaked material can be temporarily stored in the adsorbent opening 34c. It will not overflow.
Further, since the oil adsorbing material 34 has a laminated structure in which the oil adsorbing mats 34a are stacked, the leakage accumulated in the adsorbing material opening 34c permeates between the oil adsorbing mat 34a and the oil adsorbing mat 34a. As the infiltration progresses, the oil is adsorbed on the oil adsorbing mat 34a, and the oil and moisture in the leaked matter are separated.
That is, since the leaked material penetrates between the oil adsorption mat 34a and the oil adsorption mat 34a, the oil adsorbing mat 34a can be contacted in a wider range, and the oil can be adsorbed more quickly.
In other words, the oil adsorbent 34 in the present embodiment has a laminated structure, so that the area where the leaked material and the oil adsorbent 34 come into contact with each other can be increased, and the oil and moisture separation processing capability of the leaked material can be increased. There is an effect.

As described above, the oil adsorbing material 34 has a laminated structure, so that it is possible to increase the oil and moisture separation processing capacity of the leaked material, but other forms are also conceivable. FIG. 9 is a diagram showing another form of the oil adsorbent. As shown in FIG. 9, a plurality of oil adsorbing chips 34d, which are chip-shaped chunks, are placed in a container 34e made of a net-like body such as a bag made using a net-like net, and oil adsorbed. The oil adsorbent 34 ′ may be configured to be provided in the oil adsorption mat 34a by being fixed to a flat portion of the mat 34a.
In this case, since the leaked material penetrates between the plurality of oil adsorption chips 34d, the leaked material does not overflow from the tray even if the leaked material is a large amount.
Since the oil adsorbing mat 34a and the plurality of oil adsorbing chips 34d exist, the area in contact with the leaked material is large, and the same effect as the oil adsorbing material 34 having a laminated structure is achieved.

Heretofore, an example of a preferred embodiment has been described for the present invention. However, the present invention is not limited to the above-described embodiment, and the design of each component described above can be changed as appropriate without departing from the spirit of the present invention.
In addition, the present invention is not limited to the generator used in the above description as long as it is an engine-driven working machine having the above-described configuration, and is a commonly used working machine such as a compressor, a welding machine, and a pump. Needless to say, it is applicable.

It is a figure which shows the structure of a generator. It is a perspective view which shows a base. (A) is a figure which shows the structure of a floor board, (b) is the figure which looked at the floor board from the lower surface. It is a schematic diagram which shows the aspect which fits a floor board in an outer frame. (A) is a figure which shows an oil content discharge | emission mechanism, (b) is a figure which shows a saucer, (c) is a figure which shows the aspect by which an oil adsorption material is loaded into a saucer. (A) is AA sectional drawing in (a) of FIG. 5, (b) is a figure which shows the aspect which fixes a saucer to an outer frame. (A) is a figure which shows the aspect which the leaked material which fell to the upper surface of a floor board flows, (b) is CC sectional drawing in (a) of FIG. 7, (c) is collect | recovered by a saucer. It is a figure which shows a leaking thing. (A) is a figure which shows the structure of an oil adsorbent, (b) is sectional drawing of the state in which an oil adsorbent is loaded in a saucer and inserted in an outer frame. It is a figure which shows another form of an oil adsorption material.

Explanation of symbols

1 Generator (Engine-driven work machine)
1a Engine 1c Generator body (work machine body)
2 Base 20 Outer frame 24 Floor plate 24a Inclined surface (inclined part)
24b Bottom surface (inclined part and lowest part)
24c Discharge port 24e Bottom face wall (edge)
30 saucer (bracket member)
32a Moisture outlet (visual means)
34, 34 'Oil adsorbing material 34a Oil adsorbing mat 34b1, 34b2 Through hole 34c Adsorbing material opening 34d Oil adsorbing tip 34e Container constituted by a net-like body

Claims (6)

Engine,
A work machine body driven by the engine;
An outer frame formed of a frame part, a base that fixes the engine, and a base that has a base that fixes the work implement main body,
An engine-driven work machine in which a floor plate is fixed to the base below the pedestal for fixing the engine and the pedestal for fixing the work machine body,
The floor board is a plate-like member thinner than the height of the frame part, and is provided to be inclined downward from one side of the frame part toward the opposing frame part,
A discharge port is provided at or near the lowest part of the floorboard, and when the lowest part is at the edge of the floorboard, the edge is bent upward ,
The base includes an oil adsorbent,
The oil adsorbent, the engine-driven work machine according to claim Rukoto arranged inlet or outlet of the discharge port.   The engine-driven work machine according to claim 1, wherein the floor board is subjected to oil and / or water repellent treatment. The engine-driven work machine according to claim 1 or 2 , wherein the base has a visual recognition means for visualizing the oil adsorbing material provided in the base. The oil adsorbent is held by a bracket member,
The engine-driven work machine according to any one of claims 1 to 3, wherein the bracket member is detachably held on the frame portion of the base. The oil adsorbent is formed by stacking two or more oil adsorbing mats having a plate-like shape on the top and bottom,
The at least one oil adsorption mat including the uppermost one is provided with a through hole penetrating from the upper surface to the lower surface,
When the through holes of different openings in both the oil suction mat in contact with the upper and lower are provided, according to claim 4 opening of the through hole from claim 1, characterized in that at least part of overlap The engine-driven work machine according to any one of the above. The oil adsorbent is an oil adsorption mat having a plate shape;
A plurality of oil-adsorbing chips that are chip-shaped chunks,
The oil adsorbing chip is housed in a container composed of a net-like body,
The engine-driven work machine according to any one of claims 1 to 4 , wherein the engine-driven work machine is provided in a flat portion of the oil adsorption mat.

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