EP2141334B1 - Engine-driven work machine - Google Patents
Engine-driven work machine Download PDFInfo
- Publication number
- EP2141334B1 EP2141334B1 EP09251720.0A EP09251720A EP2141334B1 EP 2141334 B1 EP2141334 B1 EP 2141334B1 EP 09251720 A EP09251720 A EP 09251720A EP 2141334 B1 EP2141334 B1 EP 2141334B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- work machine
- receiving vessel
- engine
- leaking
- fuel tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000126 substance Substances 0.000 claims description 101
- 239000002828 fuel tank Substances 0.000 claims description 65
- 239000000446 fuel Substances 0.000 claims description 63
- 238000009434 installation Methods 0.000 claims description 12
- 210000001364 upper extremity Anatomy 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 43
- 230000000149 penetrating effect Effects 0.000 description 10
- 238000003466 welding Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/0076—Details of the fuel feeding system related to the fuel tank
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B63/00—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices
- F02B63/04—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators
- F02B63/044—Adaptations of engines for driving pumps, hand-held tools or electric generators; Portable combinations of engines with engine-driven devices for electric generators the engine-generator unit being placed on a frame or in an housing
Definitions
- a total amount of the leaking substance going over a volume of the receiving vessel can be preferably controlled and prevented.
- the leaking substance as leaked from the engine can be accumulated in the lowest portion of the receiving plate and discharged from the discharge port. Then, the leaking substance can be effectively introduced into the receiving vessel and effectively discharged through the drainage portion in a short period.
- the fuel tank 3 is mounted inside the receiving vessel 2.
- the fuel tank 3 is mounted in the receiving vessel 2 by a pair of tank bands 20, 20 provided in a longitudinal direction of the receiving vessel 2.
- the receiving vessel 2 is provided with a discharge plate (as referred to hereinafter as a receiving plate) 4 over the fuel tank 3.
- the receiving plate 4 will be later described in detail.
- the fuel gauge 3b may be applied to a mechanical or electrical fuel gauge as being visual recognized through a visually recognizing window providing at an upper surface of the fuel tank 3.
- the fuel gauge can be applied by a well-known technical art. The detailed explanation will be omitted.
- the drainage pipe 3c is formed such that a hollow pipe is formed to penetrate, for example, one side taken along a lateral direction of the fuel tank 3.
- the stop-by-screw boss 26 has a function to fasten a mounting means such as a bolt for securing the receiving vessel 2 in the work machine base 5 (as referred to Fig.2 ).
- a spacer 26a is mounted to be convex in the side taken along a longitudinal direction of the receiving vessel 2, and a screw hole 26b screwed by the fastening means such as a bolt is formed.
- a spacer 26a is mounted in the side of the receiving vessel 2 to form the stop-by-screw boss in Fig.3A , it is not limited to this constitution.
- a convex portion projecting a part of the side taken along a longitudinal direction of the receiving vessel 2 to the outside may be formed, and the stop-by-screw boss by forming the screw hole 26b may be formed in the convex portion.
- a method for forming the receiving vessel 2 is not limited.
- the side taken along a longitudinal direction is formed by folding a steel plate to be U-shape, and mounted the side taken along a lateral direction is mounted to the both sides, for example, by means of continuous welding.
- a drainage portion 2c including a fuel cock 21, a drainage cock 22, and a drainage cover 23 is formed in one of the sides taken along a lateral direction of the receiving vessel 2.
- a side forming the drainage portion 2c is defined as a front surface, and a side opposite to the front side is defined as a rear surface.
- the constitution of the drainage cock 22 is not particularly limited.
- an opening-or-closing constitution of a discharge pipe 22c based on the movement of a valve body 22b provided in the cylindrical discharge pipe 22c penetrating the side of the receiving vessel 2 can be considered as shown in Fig.4A .
- the discharge pipe 22c is, for example, opened or closed by manually operating the cock lever 22a.
- the discharge pipe 22c When the discharge pipe 22c is opened, the discharge pipe 22c, which is a passage between the leaking substance receiver 2a and the outside of the receiving vessel 2, will be communicated. Then, the opening of the drainage cock 22 can discharge the leaking substance accumulated in the leaking substance receiver 2a outside the receiving vessel 2.
- the drainage cock 22 may be mounted such that a position thereof, which is higher than or equal to a position of the lowest portion thereof inside the discharge pipe 22c, is the same position as the bottom surface 2a1 of the leaking substance receiver 2a or is lower than an upper surface of the bottom surface 2a1. Then, this constitution prevents from storing the leaking substance in the border between the bottom surface 2a1 and the drainage cock 22 to completely discharge the leaking substance storing in the leaking substance receiver 2a.
- Fig.4B is a cross-sectional view showing a constitutional example of the fuel cock, and is a cross-sectional view taken along a line X3-X3 of Fig.3A .
- the fuel cock 21 has a function to discharge the fuel stored in the fuel tank 3 (as referred to Fig.1A ) to the outside.
- the drainage portion 2c including the drainage cock 22 and the fuel cock 21 is formed.
- a method for securing the fuel drainage 21b to the receiving vessel 2 is not particularly limited.
- outer screws are formed in an outer circumference of the portion projecting to the outside in the fuel drainage 21b, and a flange 21f extending in the surrounding area is formed in the side of the leaking substance receiver 2a.
- the fuel drainage 21b is mounted such that a nut 21g is screwed in the outer screw of the fuel drainage 21b from the outer end, and the side of the receiving vessel 2 is fastened between the flange 21f and the nut 21g. Then, a watertight structure formed between the fuel drainage 21b and the side of the receiving vessel 2 is preferably rubber packing 21d intervened between the flange 21f and the side of the receiving vessel 2.
- a hose port 21e is formed in the side of the leaking substance receiver 2a of the fuel drainage 21b.
- the drainage hose 21c made of elastic member such as rubber is inserted into the hose port 21e to connect to the drainage pipe 3c of the fuel tank as shown in Fig.2 .
- the fuel stored in the fuel tank 3 can be discharged through the fuel cock 21 to the outside of the receiving vessel 2.
- Fig.4C is a cross-sectional view showing an another constitution of the fuel cock.
- a hollow tubular socket 211 is mounted, for example, by welding to penetrate the side of the receiving vessel 2.
- a valve 212 for an opening or closing passage is provided outside the receiving vessel 2 of the socket 211.
- a hose joint 210 is attached in the side of the leaking substance receiver 2a of the socket 211.
- the fuel tank 3 (as referred to Fig.2 ) is detached by the fuel cock 21 of such a constitution, the fuel tank 3 can be easily detached from the receiving vessel 2 in a state as the fuel stored in the fuel tank 3 by closing the drainage pipe 3c by means of the fuel valve 3c1 even in a state as the fuel stored in the fuel tank 3.
- the stealing of the fuel in the fuel tank 3 owing to an illegal opening of the valve 212 can be prevented by closing the drainage pipe 3c at the fuel valve 3c1.
- the drainage portion 2c is shown in an approximately central portion in the lateral direction of the receiving vessel 2 in Fig.3A , the drainage portion 2c may be constituted near the end thereof in the lateral direction of the receiving vessel 2.
- the leaking substance receiver 2a is provided with an mounting base 25 supporting the fuel tank 3 in the bottom surface 2a1.
- the mounting base 25, for example, a long member being approximately the same length as the length in the lateral direction of the receiving vessel 2, is mounted in the lateral direction.
- a cross-sectional form of the mounting base 25 is formed by a rib 250, a plane portion 251 as folded perpendicular to the rib 250, a wall portion 252 as bent up at a right angle (90 degrees) to the plane portion 251 to be perpendicular to the bottom surface 2a1 of the rib 250.
- a notch 253 is formed in the rib 250 of the mounting base 25 to smoothly flow the leaking substance in the rear side from the mounting base 25 to the front side.
- the receiving vessel 2 relating to this embodiment is formed such that a position of the bottom surface 2a1 of the plane portion 251 of the mounting base 25 in the front side thereof (a front mounting base 25a) is higher than a position of the bottom surface 2a1 of the mounting base 25 in the rear side thereof (a rear mounting base 25a). That is, a position of the rib 250a of the front mounting base 25a is formed to be higher than a position of the rib 250b of the rear mounting base 25b.
- auxiliary base 27 may be provided with the supporting member of the fuel tank 3, for example, two auxiliary base 27 composing of the front auxiliary base 27a, as provided in the front side, and the rear auxiliary base 27b, as provided in the rear side, such that the central proximity in the longitudinal direction of the fuel tank 3 supported by the mounting base 25 prevents, for example, from bending in the side of the bottom surface 2a1 of the receiving vessel 2.
- the form of the auxiliary base 27 is not particularly limited.
- a long member being approximately the same length as the length in the lateral direction of the receiving vessel 2 is formed along a lateral direction.
- the notch 271 is formed in the side wall, as being left-open rectangular, of the auxiliary base 27 to flow smoothly the leaking substance in the rear side of the auxiliary base 27 to the front side thereof.
- the fuel tank 3 is horizontally mounted to the receiving vessel 2 on the installation surface.
- the plane portion 251 of the front mounting base 25a, the plane portion 251 of the rear mounting base 25b, the plane portion 270 of the front auxiliary base 27a, and the plane portion 270 of the rear auxiliary base 27b are preferably formed to lie in a same horizontal plane on the installation surface.
- the mounting base 25 (the front and rear mounting bases 25a, 25b) and the auxiliary base 27 (the front and rear auxiliary bases 27a, 27b) becomes a height regulating member described in the claim.
- the fuel tank 3 becomes horizontal relative to the installation surface to supply the fuel stored in the fuel tank 3 to the engine 6b (as referred to Fig.2 ) of the work machine 6 without deviation.
- the leaking substance receiver 2a of the receiving vessel 2 is provided with the tank band 20 mounting the fuel tank (as referred to Fig.1A ), for example, with two tank bands in the longitudinal direction of the receiving vessel 2.
- the tank band 20 is a thin plate member provided, for example, inside the leaking substance receiver 2a. As shown in Fig.3B , the tank band 20 is, for example, provided with the plane portion 251 of the front mounting base 25a and the plate portion 270 of the rear auxiliary base 27b.
- Fig.5A and Fig.5B are views showing the tank band.
- Fig.5A is a view showing a state before the fuel tank is mounted
- Fig.5B is a view showing a state as the fuel tank mounted.
- the lateral length of the tank band 20 as opened in the upper direction is equal to the lateral length of the fuel tank 3. Either end of the tank band 20 extends outsides to form an engaging portion 20a.
- the fuel tank 3 is inserted into a space between both ends as opened in the upper direction of the tank band 20.
- Each tank band 20 is folded along an outer line of the fuel tank 3 to push down the fuel tank 3 from the top.
- a leg 24 supporting the receiving vessel 2 is provided below the receiving vessel 2.
- the leg 24 is formed along a lateral direction in the lower surface of the receiving vessel 2, for example, to be a prism-shape member in the front and rear sides.
- a position of the front side is lower in height, when the receiving vessel 2 is placed on a horizontal installation surface.
- a gradient having a height difference in the bottom surface 2a1 is formed, and the leaking substance of the leaking substance receiver 2a flows to the lowest portion of the bottom surface 2a1, i.e. to the front side.
- the drainage portion 2c (as referred to Fig.3A ) is formed in the lower side to discharge the leaking substance effectively in a short period, when the drainage cock 22 (as referred to Fig.3A ) is opened.
- Fig.6A is a perspective view of a work machine base
- Fig.6B is a cross-sectional view taken along a line X4-X4 of Fig.6A .
- the work machine base 5 is mounted by welding, etc. such that the side wall 50, which is approximately the same length as the length in the longitudinal direction of the receiving vessel 2 (as referred to Fig.1A ), fastens the pedestal plate 51 mounting the work machine 6 (as referred to Fig.1A ) from the both sides thereof.
- the side wall 50 is constituted to enhance the rigidity as a shallow box-shape member, as formed, for example, by a steel plate, is mounted to the pedestal plate 51 in the bottom with the outside thereof being open.
- the side wall 50 is provided by penetration with a stop-by-screw hole at a position corresponding to the stop-by-screw boss 26 (as referred to Fig.3A ), when the receiving vessel 2 (as referred to Fig.3A ) is placed between the side walls 50, 50.
- the pedestal plate 51 which is a member with approximately the same width as the lateral length of the receiving vessel 2, is provided in both ends of the side wall 50.
- the pedestal plate 51 is provided in the front side of the receiving vessel 2 (as referred to Fig.1A ).
- the pedestal plate 51 is provided with the front pedestal plate 51a, which is provided in the front side of the receiving vessel 2 (as referred to Fig.3A ), for example, to mount the work machine main body (as referred to Fig.6B ) of the work machine 6, and the rear pedestal plate 51b, which is provided in the rear side of the receiving vessel 2, for example, to mount the engine 6b (as referred to Fig.6B ) of the work machine 6.
- the front pedestal plate 51a is composed of a pedestal portion 51a1 in the form of left-open rectangular shape in cross section, which is formed to be approximately parallel to the upper surface 50a of the side wall 50, an oblique portion 51a2, which slants downwards toward the front side from the lower side of the pedestal portion 51a1, and a plate-shape front wall portion, which is mounted to the end of the front side of the oblique portion 51a2.
- the discharge hole 51a4 of the oblique portion 51a2 can be made to discharge the rainwater fallen in the oblique portion 51a2 preferably. In this constitution, it is preferably constituted not to permeate the rainwater in the oblique portion 51a2 therein. As shown in Fig.6B , it is preferable that the discharge hole 51a4 is constituted to avoid the upper of the receiving vessel 2.
- the rear pedestal plate 51b is composed of a pedestal portion 51b1, as being left-open rectangular (U-shape) in cross-section, an oblique portion 51b2 slanting downwards toward the rear side of the lower portion of the pedestal portion 51bl, and a plate-shape rear wall portion 51b3 mounted to the end of the rear side of the oblique portion 51b2.
- a discharge hole 51b5 is preferably formed in the corner of the rear wall portion 51b3 of the oblique portion 51b2 to discharge the liquid on the oblique portion 51b2.
- the work machine main body 6a is, for example, placed on the pedestal portion 51a1 and mounted by the mounting means as not shown.
- the engine 6b of the work machine 6 is placed on the auxiliary pedestal 51b4, 51b4 and mounted by the mounting means as not shown.
- the work machine 6 is supported by the work machine base 5.
- the leaking substance as leaked from the work machine 6 falls in the lower direction from the portion between two auxiliary pedestals 51b4, 51b4 and the portion between the pedestal portion 51al and the pedestal portion 51b1.
- the work machine 6 includes a coolant-circulation radiator to have a plenty of the leaking substance from the engine 6b, which fuel, lubricating oil, etc. penetrate therein, the engine 6b is constituted to be supported by two auxiliary pedestals 51b4, 51b4, thus to be able to fall the leaking substance of the engine 6b from the portion between two auxiliary pedestals 51b4, 51b4 and from the portion between the pedestal portion 51al and the pedestal portion 51b1.
- the engine 6b is mainly mounted between the front pedestal plate 51a and the rear pedestal plate 51b. Then, an area between the front pedestal plate 51a and the rear pedestal plate 51b is called as an engine room 5a.
- the side having the front pedestal plate 51a is called as a front room 5b
- side having the rear pedestal plate 51b is called as a rear room 5c.
- the engine 6b is arranged in the engine room 5a, and the work machine main body 6a is arranged in the front room 5b.
- Various auxiliary devices as not shown may be arranged in the rear room 5c.
- a small size of fuel tank is preferably provided in the engine room 5a in consideration of an efficiency of fuel supply to the engine 6b.
- the above constitution can be designed for falling the leaking fuel from portions between two auxiliary pedestals 51b4, 51b4 and from portions between the pedestal portion 51a1 and the pedestal portion 51b1.
- the engine-driven work machine 1 relating to this embodiment is provided with the work machine cover 7 for covering the work machine 6.
- a longitudinal length of the work machine cover 7 is equal to the longitudinal length of the work machine base 5, and a lateral length of the work machine cover 7 is equal to the lateral length of the work machine base 5.
- the end taken along a longitudinal direction in the open side of box-shape member formed, for example, by steel plate forms a fixed flange 7a by folding in the inner side as shown in Fig. 1B .
- the fixed flange 7a is placed on the upper surface 50a of the side wall portion 50 of the work machine base 5.
- the upper surface 50a of the side wall portion 50 and the fixed flange 7a are secured by bolts and nuts, as not shown, to mount the work machine cover 7 on the work machine base 5.
- the work machine cover 7 may be secured by welding on the work machine base 5.
- One of sides taken along a longitudinal direction of the work machine cover 7 forms an opening and closing door 70.
- a suction port 7e taking the cool air inside the work machine cover 7 is formed in the door member 70a.
- a lower engaging member 72d providing with a trim seal 71 abutting to the door member 70a closing the opening portion 7b is arranged along the upper surface 50a of the side wall portion 50 of the work machine base 5 (as referred to Fig.6A ).
- a central engaging member 72c providing with a trim seal 71 abutting to the door member 70a extending upwards and downwards parallel to the side engaging member 72s and closing the opening portion 7b is arranged between two side engaging members 72s, 72s.
- the central engaging member 72c is provided so as to engage with the end of door member 70a, as the opening portion 7b closed, from the inner side of the work machine cover 7 at a position separating two door members 70a, 70a opening and closing by French door (hinged double door).
- the lower engaging member 72d is provided with a horizontal portion 72d1 parallel to the upper surface 50a, which is a long member providing at a corresponding to the opening portion 7b of the work machine cover 7, an engaging portion 72d2, which is constituted to fold up the horizontal portion 72d1 upwards at an inner side of the work machine cover 7, and a drooping portion 72d3, which is constituted to fold down an opposite end to the the engaging portion 72d2 downwards so as to cover an end of the upper surface 50a.
- Fig.8A is a view showing the lower engaging member.
- the lower engaging member 72d is constituted to be attached to the trim seal 71 to the supporting member 72d4 formed by folding the upper end of the engaging portion 72d2 in the side of the horizontal portion 72d1.
- the trim seal 71 of the lower engaging member 72d is attached at two positions corresponding to the two door member 70a (as referred to Fig.7 ) providing with the opening and closing door 70 (as referred to Fig.7 ), and the supporting portion 72d4 is formed at a position attaching the trim seal 71.
- the lower engaging member 72d of such construction is provided to place the horizontal portion 72d1 on the upper surface 50a of the side wall portion 50 as shown in Fig.7 .
- the construction to mount the lower engaging member 72d is not limited.
- Fig.9A is a cross-section view taken along a line X5-X5 of Fig.7 .
- the work machine cover 7 forms a fixing surface 7c, 7c in the lower of the opening portion 7b (as referred to Fig.7 ), such that the front end and rear end are folded in the inner side of the work machine cover 7 and the ends thereof are folded in the side of the opening portion 7b.
- the fixing surface 7c formed in the front side and the fixing surface 7c formed in the rear side lie in the same plane.
- the lower engaging member 72d is arranged such that the engaging portion 72d2 and two fixing surfaces 7c, 7c are overlapped each other from the outside.
- the engaging portion 72d is mounted by the fastening means such as bolts B in a state as the lower engaging member 72d and the fixing surface 7c are overlapped each other.
- This is constituted to mount the lower engaging member 72d to the work machine cover 7.
- the trim seal 71 of the upper engaging member 72u is attached at two positions corresponding to the two door member 70a providing with the opening and closing door 70 (as referred to Fig.7 ).
- the supporting portion 72u1 is formed at a position to attach the trim seal 71.
- the upper engaging member 72u of such a form is provided along the upper end of the opening portion 7b (as referred to Fig.7 ).
- the constitution for fixing the upper engaging member 72u is not limited to the above.
- Fig.9B is a cross-sectional view taken along a line X6-X6 of Fig.7 .
- the work machine cover 7 forms fixing surfaces 7d, 7d at the upper of the opening portion 7b such that the front end and the rear end are folded in the inner side of the work machine cover 7, and the ends thereof are folded in the side of the opening portion 7b. It is preferable that the fixing surface 7d formed in the front side and the fixing surface 7d formed in the rear side lie in the same plane.
- the two fixing surfaces 7c, 7c formed in the lower side of the opening portion 7b and the two fixing surfaces 7d, 7d formed in the upper side of the opening portion 7b lie in the same plane.
- the upper engaging member 72u is arranged such that the trim seal 71 becomes lower to direct to the outside and the upper engaging member 72u and two fixing surfaces 7d, 7d are overlapped from the outside of the work machine cover 7. Then, the upper engaging member 72u and the two fixing surfaces 7d, 7d are mounted by the fastening means such as bolt B.
- Such a constitution can secure the upper engaging member 72u to the work machine cover 7.
- the side engaging member 72s is arranged such that the trim seal 71 is arranged to be in the central side of the opening portion 7b to direct to the outside. Then, the side engaging member 72s is secured to the fixing surface 7c and the fixing surface 7d by bolts B, etc.
- the work machine base 5 and the receiving plate 2 are mounted such that the fastening means such as a bolt (as not shown) penetrates in the stop-by-screw hole 50b (as referred to Fig.6A ) as formed in the side wall portion 50 and screws in the screw hole 26b (as referred to Fig.3A ) of the stop-by-screw boss 26.
- the fastening means such as a bolt (as not shown) penetrates in the stop-by-screw hole 50b (as referred to Fig.6A ) as formed in the side wall portion 50 and screws in the screw hole 26b (as referred to Fig.3A ) of the stop-by-screw boss 26.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Description
- The present invention relates to an engine and an engine-driven work machine including a work machine main body driven by the engine.
- In an engine-driven work machine, this prevents from leaking the leaking substance to the outside, such that a large fuel tank is installed in an concave portion formed in, for example, a base member for transportation to form a receiving vessel for storing the leaking substance, which forms a concave portion to be watertight. This kind of engine-driven work machines are disclosed in Patent Literatures (for example, Patent Publication Number
3300923 - However, according to a technical art disclosed in the above Patent Literature, the rainwater is flowed into a receiving vessel by penetrating the rainwater from gaps formed between a base member and a supporting member or from holes for drainage of rainwater as formed in the bottom surface of the base member of the receiving vessel.
- Therefore, an object of the present invention is to provide an engine-driven work machine for accumulating effectively the leaking substance from the work machine to a drainage portion provided in the receiving vessel, for discharging effectively through the drainage portion in a short period, and for controlling appropriately an overflow of the leaking substance beyond a volume of the receiving vessel.
- Engine driven work machines comprising a receiving vessel for collecting leaking substances are known from
JP2003-278558 JP2004251219 JP2000265848 - The present invention provides an engine-driven work machine according to
claim 1. Preferably, the receiving vessel in which the leaking substance falls due to the leak from the work machine is box-shaped or shaped as a quadrangular prism. The box forms a gradient having a height difference in the bottom surface. The drainage portion is formed in the lower side so as to discharge effectively the leaking substance accumulated in the receiving vessel in a short period. - A receiving plate for the leaking substance leaked from the work machine may be mounted between the work machine and the receiving vessel. The receiving plate may be provided with a height difference in the front-and-rear direction and/or in the left-and-right direction to accumulate the leaking substance in the lowest portion and to discharge the leaking substance accumulated in the lowest portion of the receiving plate. Then, a discharge port is formed to allow the leaked substance to fall inside the receiving vessel.
- According to this arrangement, the leaking substance leaked from the work machine can be received by the receiving plate and accumulated in the lowest portion formed in the receiving plate. Then, the leaking substance accumulated in the lowest portion is discharged from the receiving plate through the discharge port, thus to fall inside the receiving vessel and accumulate in the receiving vessel.
- The receiving plate is preferably provided under the engine to accumulate the leaking substance leaked from the engine.
- Preferably, the receiving plate is arranged below the lower side of the engine, which is full of the leaking substance, to accumulate the leaking substance from the engine in the receiving plate.
- According to the engine-driven work machine relating to at least the preferred embodiments of the present invention, leakage of the leaking substance in the proximity of the engine-driven work machine, can be prevented, because the leaking substance leaked from the work machine comprising the engine and the work machine main body is accumulated in the receiving plate. Then, in the case of a box-shaped receiving vessel arranged at a slant, i.e. with one side thereof lower, a gradient is formed having a height difference in the bottom surface, whereby the leaking substance accumulates in the lowest portion.
- The drainage portion is preferably formed in the lower side thereof.
- The above constitution can effectively accumulate the leaking substance in the lower side of the receiving vessel to discharge effectively the leaking substance in the receiving vessel through the drainage portion in a short period.
- Accordingly, a total amount of the leaking substance going over a volume of the receiving vessel can be preferably controlled and prevented.
- The receiving vessel is preferably provided below the work machine, and the receiving plate of the leaking substance falling owing to leakage from of the work machine is provided between the work machine and the receiving vessel. The receiving plate is arranged to have a height difference in the front-and-rear direction or in the left-and-right direction to accumulate the leaking substance in the lowest portion. The discharge port is provided for discharging the leaking substance as accumulated in the lowest portion.
- According to the above constitution, the leaking substance as accumulated by the discharge port can be accumulated in the lowest portion and discharged from the discharge port. Further, the leaking substance as discharged from the discharge port can be fallen inside the receiving vessel and effectively accumulated in the receiving vessel in a short period.
- The engine which drives the work machine main body may have a great deal of leaking substance. Thus, the receiving plate is provided below the engine to accumulate the leaking substance from the engine.
- According to the above constitution, the leaking substance as leaked from the engine can be accumulated in the lowest portion of the receiving plate and discharged from the discharge port. Then, the leaking substance can be effectively introduced into the receiving vessel and effectively discharged through the drainage portion in a short period.
- The fuel tank arranged inside the receiving vessel can be horizontally installed. Then, the leak of fuel supply owing to the gradient of the fuel tank will not arise. Then, the fuel can be effectively supplied to the engine.
- As described the above, the invention can be provided with an engine-driven work machine by which that a total amount of the leaking substance going beyond the volume of the receiving vessel can be effectively controlled and prevented, such that the leaking substance as leaked from the work machine is effectively accumulated in the drainage portion provided in the receiving vessel and effectively discharged through the drainage portion in a short period.
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Fig.1A is a view showing an engine-driven work machine relating to this embodiment, andFig1B is a view showing a state as the work machine cover removed. -
Fig.2 is a view showing a constitution of the engine-driven work machine. -
Fig.3A is a perspective view of the receiving vessel, andFig.3B is a cross-sectional view taken along a line X1-X1 ofFig.3A . -
Fig.4A is a cross-sectional view showing a constitutional example of a drainage cock, -
Fig.4B is a cross-sectional view showing a constitutional example of a fuel cock, and -
Fig.4C is a cross-sectional view showing another constitution of the fuel cock. -
Fig.5 is a view showing a tank band,Fig.5A is a view showing a state before fixing a large fuel tank,Fig.5B is a view showing a state as the large fuel tank fixed. -
Fig.6A is a perspective view of a work machine base, andFig.6B is a cross-sectional view taken along a line X4-X4 ofFig.6A . -
Fig.7 is a view showing a constitution of an opening and closing door. -
Fig.8A is a view showing a lower engaging member,Fig.8B is a view showing an upper engaging member,Fig.8C is a view showing a side engaging member, andFig.8D is a view showing a central engaging member. -
Fig.9A is a cross-sectional view taken along a line X5-X5 ofFig.7 ,Fig.9B is a cross-sectional view taken along a line X6-X6 ofFig.7 , andFig.9C is a cross-sectional view taken along a line X7-X7 ofFig.7 . -
Fig.10A is a view showing a constitution of a discharge plate, andFig.10B is a cross-sectional view showing the discharge plate as fixed in a receiving vessel. -
Fig.11A is a view, as seen from the front side, showing a state as the receiving vessel fixed in a work machine base, andFig.11B is a cross-sectional view taken along a line X9-X9 ofFig.11A . -
Fig.12A is a schematic view showing a flow of leaking substances as received on the discharge plate, andFig.12B is a cross-sectional view taken along a line X10-X10 ofFig.12A . - Hereinafter, a preferred embodiment for carrying out the invention will be described, by way of example only, with reference to the accompanying drawings.
-
Fig.1A is a figure showing an engine-driven work machine relating to the embodiment, andFig.1B is a figure showing a state as a work machine cover opened.Fig.2 is a view showing a constitution of the engine-driven work machine. - As shown in
Fig.1A, Fig.1B , andFig.2 , the engine-driven work machine relating to this embodiment is provided with a large fuel tank (as referred to hereinafter as a fuel tank) inside areceiving vessel 2 as being a box-shape member. A work machine base (as referred to hereinafter as a base) 5 supporting awork machine 6 comprising anengine 6b and a work machinemain body 6a driven by theengine 6b is provided over thefuel tank 3. Thework machine cover 7 for covering thework machine 6 is installed on thebase 5. - Hereinafter, a side of the
work machine 6 is defined as an upper direction and a side of thereceiving vessel 2 is defined as a lower direction. A direction taken along a long side such as therectangular receiving vessel 2, thefuel tank 3, and thework machine base 5, may be defined as a longitudinal direction, and a direction along a short side thereof may be defined as a lateral direction. - The
work machine base 5 is provided withside walls 50 which fasten apedestal plate 51 therebetween in a lateral direction and extend below the pedestal plate. Thereceiving vessel 2 is mounted in thework machine base 5 such that theside wall 50 covers thereceiving vessel 2 from outside in a lateral direction. The receivingvessel 2 and thework machine base 5 will be described later. - The
fuel tank 3 is mounted inside the receivingvessel 2. For example, thefuel tank 3 is mounted in the receivingvessel 2 by a pair oftank bands vessel 2. - Further, the receiving
vessel 2 is provided with a discharge plate (as referred to hereinafter as a receiving plate) 4 over thefuel tank 3. The receivingplate 4 will be later described in detail. - As shown in
Fig. 2 , thefuel tank 3 relating to this embodiment is a hollow tank as being of approximately box-shaped. Thefuel tank 3 is provided with asupply port 3a for supplying the fuel and afuel gauge 3b displaying a storing volume of the fuel. Adrainage pipe 3c for discharging the fuel storing in thefuel tank 3 is provided, for example, in one side taken along a lateral direction. - As not shown in Figures, the
fuel tank 3 is provided with a suction pipe for sucking the stored fuel, and a return pipe for returning the fuel to thefuel tank 3. - Though a constitution of the
supply port 3a is not limited, a hollow supply pipe 3a1 penetrating a surface (an upper surface) in the upper side of thefuel tank 3 projects in an upper direction of thefuel tank 3, and a lid 3a2 as detachably provided at the end thereof is constituted to close the supply pipe 3a1. - Though a constitution of the
fuel gauge 3b is not limited, thefuel gauge 3b may be applied to a mechanical or electrical fuel gauge as being visual recognized through a visually recognizing window providing at an upper surface of thefuel tank 3. The fuel gauge can be applied by a well-known technical art. The detailed explanation will be omitted. - The
drainage pipe 3c is formed such that a hollow pipe is formed to penetrate, for example, one side taken along a lateral direction of thefuel tank 3. -
Fig.3A is a perspective view of the receiving vessel, andFig.3B is a cross sectional view taken along a line X1-X1 ofFig.3A . As shown inFig.3A , the receivingvessel 2 is a vessel composed of a box-shape body with the upper side thereof open, and a leakingsubstance receiver 2a is formed in an inner hollow area. The upper end taken along a longitudinal direction slants in the upper direction toward the open side to form anoblique surface 2b. - Either side taken along a longitudinal direction of the receiving
vessel 2 is provided with a stop-by-screw boss 26 in each side thereof.Fig.3A shows three stop-by-screw bosses. - The stop-by-
screw boss 26 has a function to fasten a mounting means such as a bolt for securing the receivingvessel 2 in the work machine base 5 (as referred toFig.2 ). For example, aspacer 26a is mounted to be convex in the side taken along a longitudinal direction of the receivingvessel 2, and ascrew hole 26b screwed by the fastening means such as a bolt is formed. - Though a
spacer 26a is mounted in the side of the receivingvessel 2 to form the stop-by-screw boss inFig.3A , it is not limited to this constitution. For example, a convex portion projecting a part of the side taken along a longitudinal direction of the receivingvessel 2 to the outside may be formed, and the stop-by-screw boss by forming thescrew hole 26b may be formed in the convex portion. - A leaking
substance receiver 2a is an area for receiving and storing the leaking substance such as fuel oil, lubricating oil, and coolant, as leaked from, for example, work machine 6 (as referred toFig.1A ). It is preferable to be a watertight construction, for example, by means of continuous welding. - A method for forming the receiving
vessel 2 is not limited. For example, the side taken along a longitudinal direction is formed by folding a steel plate to be U-shape, and mounted the side taken along a lateral direction is mounted to the both sides, for example, by means of continuous welding. - Accordingly, spots to be continuously welded will decrease in number, and steps for manufacturing the receiving
vessel 2 will be decreased. The watertight property thereof will be preferably maintained, because the ill-welding spots can be remarkably decreased in number. - A
drainage portion 2c including afuel cock 21, adrainage cock 22, and adrainage cover 23 is formed in one of the sides taken along a lateral direction of the receivingvessel 2. - Hereinafter, a side forming the
drainage portion 2c is defined as a front surface, and a side opposite to the front side is defined as a rear surface. -
Fig.4A is a cross-sectional view taken along a line X2-X2 ofFig.3A , and is a cross-sectional view showing a constitutional example of the drainage cock. - The constitution of the
drainage cock 22 is not particularly limited. For example, an opening-or-closing constitution of adischarge pipe 22c based on the movement of avalve body 22b provided in thecylindrical discharge pipe 22c penetrating the side of the receivingvessel 2 can be considered as shown inFig.4A . In a case where thevalve body 22c is constituted to cooperatively actuate together with thecock lever 22a provided outside thedischarge pipe 22c, thedischarge pipe 22c is, for example, opened or closed by manually operating thecock lever 22a. When thedischarge pipe 22c is opened, thedischarge pipe 22c, which is a passage between the leakingsubstance receiver 2a and the outside of the receivingvessel 2, will be communicated. Then, the opening of thedrainage cock 22 can discharge the leaking substance accumulated in the leakingsubstance receiver 2a outside the receivingvessel 2. - As shown in
Fig.4A , thedrainage cock 22 may be mounted such that a position thereof, which is higher than or equal to a position of the lowest portion thereof inside thedischarge pipe 22c, is the same position as the bottom surface 2a1 of the leakingsubstance receiver 2a or is lower than an upper surface of the bottom surface 2a1. Then, this constitution prevents from storing the leaking substance in the border between the bottom surface 2a1 and thedrainage cock 22 to completely discharge the leaking substance storing in the leakingsubstance receiver 2a. -
Fig.4B is a cross-sectional view showing a constitutional example of the fuel cock, and is a cross-sectional view taken along a line X3-X3 ofFig.3A . - The
fuel cock 21 has a function to discharge the fuel stored in the fuel tank 3 (as referred toFig.1A ) to the outside. Thedrainage portion 2c including thedrainage cock 22 and thefuel cock 21 is formed. - A constitution of the
fuel cock 21 is not particularly limited. For example, as shown inFig.4B , thefuel cock 21 is provided with afuel drainage 21b composing of a hollow pipe penetrating the side of the receivingvessel 2 to communicate between the leakingsubstance receiver 2a and the outside of the receivingvessel 2. A screw groove is formed in the proximity of the outside end of thefuel drainage 21b. A constitution for screwing thefuel drainage bolt 21a, which has a screw portion screwed by the screw groove of thefuel drainage 21b, and for closing thefuel drainage 21b may be applied. - In this constitution, the
fuel cock 21 can be easily opened or closed by attaching or detaching thefuel drainage bolt 21a. - A method for securing the
fuel drainage 21b to the receivingvessel 2 is not particularly limited. For example, outer screws are formed in an outer circumference of the portion projecting to the outside in thefuel drainage 21b, and aflange 21f extending in the surrounding area is formed in the side of the leakingsubstance receiver 2a. - The
fuel drainage 21b is mounted such that anut 21g is screwed in the outer screw of thefuel drainage 21b from the outer end, and the side of the receivingvessel 2 is fastened between theflange 21f and thenut 21g. Then, a watertight structure formed between thefuel drainage 21b and the side of the receivingvessel 2 is preferablyrubber packing 21d intervened between theflange 21f and the side of the receivingvessel 2. - A
hose port 21e is formed in the side of the leakingsubstance receiver 2a of thefuel drainage 21b. For example, thedrainage hose 21c made of elastic member such as rubber is inserted into thehose port 21e to connect to thedrainage pipe 3c of the fuel tank as shown inFig.2 . - In this constitution, the fuel stored in the
fuel tank 3 can be discharged through thefuel cock 21 to the outside of the receivingvessel 2. -
Fig.4C is a cross-sectional view showing an another constitution of the fuel cock. - As shown in
Fig.4C , a hollowtubular socket 211 is mounted, for example, by welding to penetrate the side of the receivingvessel 2. Avalve 212 for an opening or closing passage is provided outside the receivingvessel 2 of thesocket 211. A hose joint 210 is attached in the side of the leakingsubstance receiver 2a of thesocket 211. - A fuel valve 3c1 for opening or closing the
drainage pipe 3c is attached to thedrainage pipe 3c of the fuel tank (as referred toFig.2 ) to connect thedrainage hose 21c through a hose joint 3c2. - Then, the fuel stored in the fuel tank 3 (as referred to
Fig.2 ) is designed for discharging to the outside by opening thedrainage pipe 3c and thevalve 212 by means of the fuel valve 3c1. - In a case where the fuel tank 3 (as referred to
Fig.2 ) is detached by thefuel cock 21 of such a constitution, thefuel tank 3 can be easily detached from the receivingvessel 2 in a state as the fuel stored in thefuel tank 3 by closing thedrainage pipe 3c by means of the fuel valve 3c1 even in a state as the fuel stored in thefuel tank 3. - The stealing of the fuel in the
fuel tank 3 owing to an illegal opening of thevalve 212 can be prevented by closing thedrainage pipe 3c at the fuel valve 3c1. - As shown in
Fig.4A to Fig.4C , thedrainage cock 22 and thefuel cock 21 may be provided in astep portion 2d by inserting in the side of the leakingsubstance receiver 2a to form a step in the side of the receivingvessel 2. The ends of thedrainage cock 22 and thefuel cock 21 are constituted not to project from the side of the receivingvessel 2. For example, the collision of object against thedrainage cock 22 and thefuel cock 21 can be avoided and failures of thedrainage cock 22 and thefuel cock 21 can be prevented. - As shown in
Fig.3A , thedrainage cover 23 may be provided to surround thedrainage cock 22 and thefuel cock 21. Thedrainage cover 23, which is of left-open rectangular shape (U-shape) with the opening side thereof directed to the upper direction, is mounted to thestep portion 2d to surround thedrainage cock 22 and thefuel cock 21. The end thereof is constituted to project outwards from the ends of thedrainage cock 22 and thefuel cock 21. Such drainage cover 23 can receive the leaking substance by thedrainage cover 23 and prevent from the surrounding environmental pollution in a place for mounting the receivingvessel 2, even in a case where the leaking substance leaks from thedrainage cock 22 and thefuel cock 21. - In addition, though the
drainage portion 2c is shown in an approximately central portion in the lateral direction of the receivingvessel 2 inFig.3A , thedrainage portion 2c may be constituted near the end thereof in the lateral direction of the receivingvessel 2. - As shown in
Fig.3B , the leakingsubstance receiver 2a is provided with an mountingbase 25 supporting thefuel tank 3 in the bottom surface 2a1. The mountingbase 25, for example, a long member being approximately the same length as the length in the lateral direction of the receivingvessel 2, is mounted in the lateral direction. As shown inFig.3B , a cross-sectional form of the mountingbase 25 is formed by arib 250, aplane portion 251 as folded perpendicular to therib 250, awall portion 252 as bent up at a right angle (90 degrees) to theplane portion 251 to be perpendicular to the bottom surface 2a1 of therib 250. - Each of the mounting
base 25 is respectively provided at a front side and a rear side. The distance between the opposingwall portions 252 is equal to the same length as the length in the longitudinal direction of thefuel tank 3, and theplane portion 251 is mounted to direct to an inner side of the receivingvessel 2. A method for mounting the mountingbase 25 to the bottom surface 2a1 is not limited to the above. For example, the method for mounting may be, for example, by welding. - For example, as shown in
Fig.3A and Fig.3B , it is preferable that anotch 253 is formed in therib 250 of the mountingbase 25 to smoothly flow the leaking substance in the rear side from the mountingbase 25 to the front side. - The
fuel tank 3 is supported on theplane portion 251 of the mountingbase 25. Then, it is preferable that thefuel tank 3 makes horizontal relative to the installation surface. - As before-mentioned, the receiving
vessel 2 is placed on the installation surface, which is oblique to become lower in the front side. Thus, the front side of the fuel tank is required to be higher in position than the rear side thereof so that thefuel tank 3 supported by the mountingbase 25 becomes horizontal. - Accordingly, the receiving
vessel 2 relating to this embodiment is formed such that a position of the bottom surface 2a1 of theplane portion 251 of the mountingbase 25 in the front side thereof (afront mounting base 25a) is higher than a position of the bottom surface 2a1 of the mountingbase 25 in the rear side thereof (arear mounting base 25a). That is, a position of therib 250a of the front mountingbase 25a is formed to be higher than a position of therib 250b of therear mounting base 25b. - It is preferable that the
plane portion 251 is formed to be horizontal relative to the installation surface. - As shown in
Fig.3A and Fig.3B , it may be constituted to provide anauxiliary base 27 between the front mountingbase 25a and therear mounting base 25b. Theauxiliary base 27 may be provided with the supporting member of thefuel tank 3, for example, twoauxiliary base 27 composing of the frontauxiliary base 27a, as provided in the front side, and the rearauxiliary base 27b, as provided in the rear side, such that the central proximity in the longitudinal direction of thefuel tank 3 supported by the mountingbase 25 prevents, for example, from bending in the side of the bottom surface 2a1 of the receivingvessel 2. - The form of the
auxiliary base 27 is not particularly limited. For example, a long member being approximately the same length as the length in the lateral direction of the receivingvessel 2 is formed along a lateral direction. - The
auxiliary base 27 is, for example, a left-open rectangular shape in cross-sectional form. Theauxiliary base 27 is mounted to direct to the bottom surface 2a1 in the opening side to support thefuel tank 3 on theplane portion 270 formed in the upper side. - For example, it is preferable that the
notch 271 is formed in the side wall, as being left-open rectangular, of theauxiliary base 27 to flow smoothly the leaking substance in the rear side of theauxiliary base 27 to the front side thereof. - As before-mentioned, the
fuel tank 3 is horizontally mounted to the receivingvessel 2 on the installation surface. Thus, theplane portion 251 of the front mountingbase 25a, theplane portion 251 of therear mounting base 25b, theplane portion 270 of the frontauxiliary base 27a, and theplane portion 270 of the rearauxiliary base 27b are preferably formed to lie in a same horizontal plane on the installation surface. - The mounting base 25 (the front and rear mounting
bases auxiliary bases - In a case where the receiving
vessel 2 is mounted as oblique relative to the installation surface, thefuel tank 3 becomes horizontal relative to the installation surface to supply the fuel stored in thefuel tank 3 to theengine 6b (as referred toFig.2 ) of thework machine 6 without deviation. - As shown in
Fig.3A , the leakingsubstance receiver 2a of the receivingvessel 2 is provided with thetank band 20 mounting the fuel tank (as referred toFig.1A ), for example, with two tank bands in the longitudinal direction of the receivingvessel 2. - The
tank band 20 is a thin plate member provided, for example, inside the leakingsubstance receiver 2a. As shown inFig.3B , thetank band 20 is, for example, provided with theplane portion 251 of the front mountingbase 25a and theplate portion 270 of the rearauxiliary base 27b. -
Fig.5A and Fig.5B are views showing the tank band.Fig.5A is a view showing a state before the fuel tank is mounted, andFig.5B is a view showing a state as the fuel tank mounted. - As shown in
Fig.5A , thetank band 20 is mounted by screwing, welding, etc. to theplane portion 251 of the front mountingbase 25a and theplane portion 270 of the rearauxiliary base 27b (as referred toFig.3B ) such that a member composed of a narrow steel plate as folded like approximately U-shape opens in the upper direction. - It is preferable that the lateral length of the
tank band 20 as opened in the upper direction is equal to the lateral length of thefuel tank 3. Either end of thetank band 20 extends outsides to form an engagingportion 20a. - In a case where the
fuel tank 3 is mounted to the receivingvessel 2, thefuel tank 3 is inserted into a space between both ends as opened in the upper direction of thetank band 20. Eachtank band 20 is folded along an outer line of thefuel tank 3 to push down thefuel tank 3 from the top. - One of bolt holes (as not shown) as formed in two
engaging portions - As shown in
Fig.3A , aleg 24 supporting the receivingvessel 2 is provided below the receivingvessel 2. Theleg 24 is formed along a lateral direction in the lower surface of the receivingvessel 2, for example, to be a prism-shape member in the front and rear sides. - A height difference between the leg 24 (
front leg 24a) of the front side and the leg 24 (rear leg 24b) of the rear side, that is, a volume projecting from the lower surface of the receivingvessel 2 is different. Then, it is preferable that the height of thefront leg 24a is lower than the height of therear leg 24b. - That is, as shown in
Fig.3B , it is preferable that a position of the front side is lower in height, when the receivingvessel 2 is placed on a horizontal installation surface. - In this constitution, a gradient having a height difference in the bottom surface 2a1 is formed, and the leaking substance of the leaking
substance receiver 2a flows to the lowest portion of the bottom surface 2a1, i.e. to the front side. - The
drainage portion 2c (as referred toFig.3A ) is formed in the lower side to discharge the leaking substance effectively in a short period, when the drainage cock 22 (as referred toFig.3A ) is opened. - Thus, the leg 24 (
front leg 24a andrear leg 24b) slants the receivingvessel 2 to form a gradient having a height difference in the bottom surface 2a1. -
Fig.6A is a perspective view of a work machine base, andFig.6B is a cross-sectional view taken along a line X4-X4 ofFig.6A . - As shown in
Fig.6A , thework machine base 5 is mounted by welding, etc. such that theside wall 50, which is approximately the same length as the length in the longitudinal direction of the receiving vessel 2 (as referred toFig.1A ), fastens thepedestal plate 51 mounting the work machine 6 (as referred toFig.1A ) from the both sides thereof. - The
side wall 50 is constituted to enhance the rigidity as a shallow box-shape member, as formed, for example, by a steel plate, is mounted to thepedestal plate 51 in the bottom with the outside thereof being open. - The
side wall 50 is provided by penetration with a stop-by-screw hole at a position corresponding to the stop-by-screw boss 26 (as referred toFig.3A ), when the receiving vessel 2 (as referred toFig.3A ) is placed between theside walls - The
pedestal plate 51, which is a member with approximately the same width as the lateral length of the receivingvessel 2, is provided in both ends of theside wall 50. Thepedestal plate 51 is provided in the front side of the receiving vessel 2 (as referred toFig.1A ). For example, thepedestal plate 51 is provided with thefront pedestal plate 51a, which is provided in the front side of the receiving vessel 2 (as referred toFig.3A ), for example, to mount the work machine main body (as referred toFig.6B ) of thework machine 6, and therear pedestal plate 51b, which is provided in the rear side of the receivingvessel 2, for example, to mount theengine 6b (as referred toFig.6B ) of thework machine 6. - As shown in
Fig.6A and Fig.6B , thefront pedestal plate 51a is composed of a pedestal portion 51a1 in the form of left-open rectangular shape in cross section, which is formed to be approximately parallel to theupper surface 50a of theside wall 50, an oblique portion 51a2, which slants downwards toward the front side from the lower side of the pedestal portion 51a1, and a plate-shape front wall portion, which is mounted to the end of the front side of the oblique portion 51a2. - For example, it is preferable that a discharge hole 51a4 is formed at the corner of the front wall portion 51a3 of the oblique portion 51a2 to discharge the liquid on the oblique portion 51a2.
- It may be possible that the rainwater permeate, for example, from the gap (as not shown) and a supply-and-exhaust port as not shown in the work machine cover 7 (as referred to
Fig.1A ) would fall on thefront pedestal plate 51a. The discharge hole 51a4 of the oblique portion 51a2 can be made to discharge the rainwater fallen in the oblique portion 51a2 preferably. In this constitution, it is preferably constituted not to permeate the rainwater in the oblique portion 51a2 therein. As shown inFig.6B , it is preferable that the discharge hole 51a4 is constituted to avoid the upper of the receivingvessel 2. - The
rear pedestal plate 51b is composed of a pedestal portion 51b1, as being left-open rectangular (U-shape) in cross-section, an oblique portion 51b2 slanting downwards toward the rear side of the lower portion of the pedestal portion 51bl, and a plate-shape rear wall portion 51b3 mounted to the end of the rear side of the oblique portion 51b2. - The front wall portion 51a3 and the rear wall portion 51b3 are provided to form a side surface taken along a lateral direction of the
work machine base 5. - Each
side wall portion 50 of the pedestal portion 51b1 is, for example, provided with an auxiliary pedestal 51b4, 51b4, respectively. The auxiliary pedestal 51b4 is mounted to the pedestal portion 51b1 such that a long member as being left-open rectangular in cross section, for example, directs its opening to the lower direction, and projects toward the front side from the pedestal portion 51b1. - For example, a discharge hole 51b5 is preferably formed in the corner of the rear wall portion 51b3 of the oblique portion 51b2 to discharge the liquid on the oblique portion 51b2.
- It may be possible that the rainwater permeating from the gap (as not shown) formed in the work machine cover 7 (as referred to
Fig.1A ) and the supply-and-suction port (as not shown), formed in thework machine cover 7 would fall on therear pedestal plate 51b. The discharge hole 51b5 of the oblique portion 51b2 can preferably discharge the rainwater falling on the oblique portion 51b2. In this constitution, it is preferable not to enter the rainwater into the receivingvessel 2. As shown inFig.6B , it is preferable that the discharge hole 51b5 avoids the upper of the receivingvessel 2. - As shown in
Fig.6B , the work machinemain body 6a is, for example, placed on the pedestal portion 51a1 and mounted by the mounting means as not shown. Theengine 6b of thework machine 6 is placed on the auxiliary pedestal 51b4, 51b4 and mounted by the mounting means as not shown. - Thus, the
work machine 6 is supported by thework machine base 5. - In the above constitution, the leaking substance as leaked from the
work machine 6 falls in the lower direction from the portion between two auxiliary pedestals 51b4, 51b4 and the portion between the pedestal portion 51al and the pedestal portion 51b1. - Though the
work machine 6 includes a coolant-circulation radiator to have a plenty of the leaking substance from theengine 6b, which fuel, lubricating oil, etc. penetrate therein, theengine 6b is constituted to be supported by two auxiliary pedestals 51b4, 51b4, thus to be able to fall the leaking substance of theengine 6b from the portion between two auxiliary pedestals 51b4, 51b4 and from the portion between the pedestal portion 51al and the pedestal portion 51b1. - As shown in
Fig.6B , theengine 6b is mainly mounted between thefront pedestal plate 51a and therear pedestal plate 51b. Then, an area between thefront pedestal plate 51a and therear pedestal plate 51b is called as anengine room 5a. - In addition, the side having the
front pedestal plate 51a is called as afront room 5b, and side having therear pedestal plate 51b is called as arear room 5c. - In the engine-driven work machine 1 (as referred to
Fig.1 ) relating to this embodiment, theengine 6b is arranged in theengine room 5a, and the work machinemain body 6a is arranged in thefront room 5b. Various auxiliary devices as not shown may be arranged in therear room 5c. - In a case where the
work machine base 5 is divided as shown inFig.6B , a small size of fuel tank, as not shown, is preferably provided in theengine room 5a in consideration of an efficiency of fuel supply to theengine 6b. - Even if the leak of fuel arises in the small size of fuel tank as not shown, the above constitution can be designed for falling the leaking fuel from portions between two auxiliary pedestals 51b4, 51b4 and from portions between the pedestal portion 51a1 and the pedestal portion 51b1.
- Back to
Fig.1A , the engine-drivenwork machine 1 relating to this embodiment is provided with thework machine cover 7 for covering thework machine 6. - As shown in
Fig.1A , a longitudinal length of thework machine cover 7 is equal to the longitudinal length of thework machine base 5, and a lateral length of thework machine cover 7 is equal to the lateral length of thework machine base 5. The end taken along a longitudinal direction in the open side of box-shape member formed, for example, by steel plate forms a fixedflange 7a by folding in the inner side as shown inFig. 1B . - The fixed
flange 7a is placed on theupper surface 50a of theside wall portion 50 of thework machine base 5. For example, theupper surface 50a of theside wall portion 50 and the fixedflange 7a are secured by bolts and nuts, as not shown, to mount thework machine cover 7 on thework machine base 5. - The
work machine cover 7 may be secured by welding on thework machine base 5. - One of sides taken along a longitudinal direction of the
work machine cover 7 forms an opening and closingdoor 70. -
Figure 7 is a view showing a constitution of the opening and closingdoor 70. As shown inFig.7 , the opening and closingdoor 70 includes twodoor members door members opening 7b of thework machine cover 7. The twodoor members work machine cover 7 at ahinge member 70b having a rotational axis extending vertically to rotate around thehinge member 70b and open or close theopening portion 7b of thework machine cover 7 in a way of French doors (hinged double doors). - In addition, a suction port 7e taking the cool air inside the
work machine cover 7 is formed in thedoor member 70a. - In the lower portion of the
opening portion 7b, a lower engagingmember 72d providing with atrim seal 71 abutting to thedoor member 70a closing theopening portion 7b is arranged along theupper surface 50a of theside wall portion 50 of the work machine base 5 (as referred toFig.6A ). - In the upper portion of the
opening portion 7b, an upper engagingmember 72u providing with atrim seal 71 abutting to thedoor member 70a closing theopening portion 7b is arranged along an upper end of theopening portion 7b. - A central engaging
member 72c providing with atrim seal 71 abutting to thedoor member 70a extending upwards and downwards parallel to theside engaging member 72s and closing theopening portion 7b is arranged between twoside engaging members - The central engaging
member 72c is provided so as to engage with the end ofdoor member 70a, as theopening portion 7b closed, from the inner side of thework machine cover 7 at a position separating twodoor members - The lower engaging
member 72d is provided with a horizontal portion 72d1 parallel to theupper surface 50a, which is a long member providing at a corresponding to theopening portion 7b of thework machine cover 7, an engaging portion 72d2, which is constituted to fold up the horizontal portion 72d1 upwards at an inner side of thework machine cover 7, and a drooping portion 72d3, which is constituted to fold down an opposite end to the the engaging portion 72d2 downwards so as to cover an end of theupper surface 50a. -
Fig.8A is a view showing the lower engaging member. As shown inFig.8A , the lower engagingmember 72d is constituted to be attached to thetrim seal 71 to the supporting member 72d4 formed by folding the upper end of the engaging portion 72d2 in the side of the horizontal portion 72d1. - The
trim seal 71 of the lower engagingmember 72d is attached at two positions corresponding to the twodoor member 70a (as referred toFig.7 ) providing with the opening and closing door 70 (as referred toFig.7 ), and the supporting portion 72d4 is formed at a position attaching thetrim seal 71. - A form of the
trim seal 71 is not limited. For example, it is a long member providing with atip portion 71b composed of a hollow cross-sectional form at the top of the attachingportion 71a grasping the flange-shape supporting member 72d4. - The lower engaging
member 72d of such construction is provided to place the horizontal portion 72d1 on theupper surface 50a of theside wall portion 50 as shown inFig.7 . - The construction to mount the lower engaging
member 72d is not limited. -
Fig.9A is a cross-section view taken along a line X5-X5 ofFig.7 . - As shown in
Fig.9A , thework machine cover 7 forms a fixingsurface opening portion 7b (as referred toFig.7 ), such that the front end and rear end are folded in the inner side of thework machine cover 7 and the ends thereof are folded in the side of theopening portion 7b. In this constitution, it is preferable that the fixingsurface 7c formed in the front side and the fixingsurface 7c formed in the rear side lie in the same plane. - The lower engaging
member 72d is arranged such that the engaging portion 72d2 and two fixingsurfaces portion 72d is mounted by the fastening means such as bolts B in a state as the lower engagingmember 72d and the fixingsurface 7c are overlapped each other. - This is constituted to mount the lower engaging
member 72d to thework machine cover 7. -
Fig.8B is a view showing the upper engaging member. As shown inFig.8B , the upper engagingmember 72u is a long member to be plate-shape. The upper engagingmember 72u is constituted to attach thetrim seal 71 to the supporting portion 72u1 formed by folding the end taken along a longitudinal direction. - The
trim seal 71 of the upper engagingmember 72u is attached at two positions corresponding to the twodoor member 70a providing with the opening and closing door 70 (as referred toFig.7 ). The supporting portion 72u1 is formed at a position to attach thetrim seal 71. - The upper engaging
member 72u of such a form is provided along the upper end of theopening portion 7b (as referred toFig.7 ). - The constitution for fixing the upper engaging
member 72u is not limited to the above. -
Fig.9B is a cross-sectional view taken along a line X6-X6 ofFig.7 . - As shown in
Fig.9B , thework machine cover 7forms fixing surfaces opening portion 7b such that the front end and the rear end are folded in the inner side of thework machine cover 7, and the ends thereof are folded in the side of theopening portion 7b. It is preferable that the fixingsurface 7d formed in the front side and the fixingsurface 7d formed in the rear side lie in the same plane. - It is also preferable that the two fixing
surfaces opening portion 7b and the two fixingsurfaces opening portion 7b lie in the same plane. - The upper engaging
member 72u is arranged such that thetrim seal 71 becomes lower to direct to the outside and the upper engagingmember 72u and two fixingsurfaces work machine cover 7. Then, the upper engagingmember 72u and the two fixingsurfaces - Such a constitution can secure the upper engaging
member 72u to thework machine cover 7. -
Fig.8C is a view showing a side engaging member. As shown inFig.8C , theside engaging member 72s is constituted to attach thetrim seal 71 to one of ends in the longitudinal direction of the long member as being L-shape in cross-sectional area. - As shown in
Fig.7 , theside engaging member 72s is arranged such that thetrim seal 71 is arranged to be in the central side of theopening portion 7b to direct to the outside. Then, theside engaging member 72s is secured to the fixingsurface 7c and the fixingsurface 7d by bolts B, etc. - Such a constitution can secure the
side engaging member 72s to the front side and the rear side of theopening portion 7b. -
Fig.8D is a view showing a central engaging member. As shown inFig.8D , the central engagingmember 72c is constituted such that the end taken along a longitudinal direction of the plate-shape long member is folded as being left-open rectangular (U-shape) in cross section to form the two supporting portions 72c1, 72c1. Then, the central engagingmember 72c is constituted to attach the twotrim seals - The central engaging
member 72c is formed such that the plane-shape fixing portion 72c2, as the supporting portion 72c1 not formed, extends in both sides of the longitudinal direction. - As shown in
Fig.7 , the central engagingmember 72c is provided such that the twotrim seals member 72u and the lower engagingmember 72d. - The fixing portion 72c2 is secured by securing means such as bolt B to the upper engaging
member 72u and the lower engagingmember 72d. - In the above constitution, the two
trim seals door members opening portion 7b, respectively. One of the trim seals 71, 71 is constituted to abut to one of thedoor member 70a at the inner side of thework machine cover 7. - As the above constitution, the lower engaging
member 72d, the upper engagingmember 72u, the central engagingmember 72c, and the twoside engaging members opening portion 7b. Thedoor member 70a closing theopening portion 7b is abutted to the inner side of thework machine cover 7. Then, thetrim seal 71 is provided to engage with thedoor member 70a. -
Fig.9C is a cross-sectional view taken along a line X7-X7 ofFig.7 to show a state as the door member closes the opening portion. - The
trim seal 71 is made of the elastic element such as rubber. As shown inFig.9C , thetrim seal 71 is engaged with thedoor member 70a by an abutment thereof, when theopening portion 7b (as referred toFig.7 ) is closed by thedoor member 70a. - As before mentioned, the
trim seal 71 is formed by the elastic element. When thetrim seal 71 contacts thedoor member 70a, thetip portion 71b becomes a state as compressed in thedoor member 70a by small transformation to have a good sealing property between thedoor member 70a and the lower engagingmember 72d. - As shown in
Fig.7 , thetrim seal 71 is arranged to be like a rectangle (a shape of the Japanese letter □) in theopening portion 7b to abut to thedoor member 70a at the upper, lower, front and rear sides thereof. - For example, the
door member 70a is formed by a shallow box-shape member. In a case where an opening directs to the inner side of thework machine cover 7, when thedoor member 70a closes theopening portion 7b, the rainwater penetrating from the gap between thework machine cover 7 and thedoor member 70a can be prevented from penetration into the inner side of the shallow box. - Accordingly, the opening and closing door 70 (as referred to
Fig.7 ) formed in thework machine cover 7 of the engine-driven work machine 1 (as referred toFig.1A ) relating to this embodiment can be preferably prevented from penetration of the rainwater in the inner side of thework machine cover 7, even in a case where the rainwater penetrates into the inner side of thework machine cover 7. -
Fig.10A is a view showing a constitution of the receiving plate.Fig.10B is a cross-sectional view showing the receiving plate mounted to the receiving vessel to be a cross-sectional view taken along a line X8-X8 ofFig.10A . - As shown in
Fig.10A , the receiving plate is made of the plate member such as steel plate. Thefirst fixing surface 4b is formed by folding one end of thebottom portion 4a as being the same length as the length in the lateral direction of the receiving vessel 2 (as referred toFig.10B ). - The
first fixing surface 4b is directed to the side as folded in the receivingplate 4. - The
oblique wall 4d is formed by folding upwards one end of the side opposite to thefirst fixing surface 4d of thebottom surface 4a at a prescribed angle, and thesecond fixing surface 4c is formed by folding downwards one end of theoblique wall 4d at a prescribed angle. - An edged side connecting the
first fixing surface 4b to theoblique wall 4d formswall portions wall portion oblique wall 4d are connected as being watertight, for example, by means of continuous welding. - In such a
receiving plate 4, a distance between a portion to be folded between thebottom portion 4a and thefirst fixing surface 4b, and a portion to be folded between theoblique wall 4d and thesecond fixing surface 4c, is formed to be equal to the length between the two top ends taken along a longitudinal direction of the receiving vessel 2 (as referred toFig.10B ). As shown inFig.10B , it is preferable that theoblique surface 2b of the receivingvessel 2 and thefirst fixing surface 4b of the receivingplate 4 are overlapped each other and theoblique surface 2b and thesecond fixing surface 4c are overlapped each other, in a case where the receivingplate 4 is placed on the receivingvessel 2 as mated each portion to be folded with the upper portion of the receivingvessel 2. - In a case where the
oblique surface 2b of the receivingvessel 2 and thefirst fixing surface 4b are mutually secured by bolts B and nuts N, and theoblique surface 2b of the receivingvessel 2 and thesecond fixing surface 4c of the receivingplate 4 are mutually secured by bolts B and nuts N, the receivingplate 4 is mounted to the receivingvessel 2. - In the above constitution, the
bottom portion 4a of the receivingplate 4 is mounted to form an oblique surface with the side of theoblique wall 4d to be lower. That is, the receivingplate 4 is formed to have a height difference in the left and right direction. - In addition, the left and right direction means a direction perpendicular to a direction from the front side to the rear side and a direction taken along a lateral direction.
- As shown in
Fig.10A and Fig.10B , a visually recognizing hole 4a1 and a penetrating hole for supply port 4a2 are opened in thebottom portion 4a of the receivingplate 4. - As shown in
Fig.10B , the receivingplate 4 is arranged over thefuel tank 3, in a case where the receivingplate 4 is mounted to the receivingvessel 2. Thefuel tank 3 is provided with asupply port 3a as formed to project upwards and afuel gauge 3b having a visually recognizing window on the upper surface. Thus, it is preferably constituted to form the penetrating hole for supply port 4a2 in the receivingplate 4 and penetrating thesupply port 3a of thefuel tank 3. It is also preferably constituted to form the visually recognizing hole 4a1 of the receivingplate 4 and have the visual recognition of thefuel gauge 3b. - As shown in
Fig.10B , it is preferably constituted to be a convex shape directed to the upward in the periphery of the visually recognizing hole 4a1 and the penetrating hole for supply port 4a2. This constitution can preferably prevent from flowing the liquid on thebottom portion 4a of the receivingplate 4 into the visually recognizing hole 4a1 and the penetrating hole for supply port 4a2. - As shown in
Fig.10A , at least one discharge port 4e1 (three discharge port 4e1 show inFig.10A ) is formed in thewall portion 4e of the receivingplate 4. Thedischarge port 4ebottom portion 4a in the proximity of theoblique wall 4d. - As shown in
Fig.10B , this constitution is able to accumulate the liquid on thebottom portion 4a flowing along an oblique surface of thebottom portion 4a to the side of theoblique wall 4d into the discharge port 4e1 of the lowest portion, and to discharge efficiently. - The discharge port 4e1 is preferably formed in the front side. As before-mentioned, the receiving
vessel 2 slants as the front side thereof becomes lower. Thus, thebottom portion 4a slants as the front side thereof also in the receivingplate 4 formed at the receivingvessel 2. That is, when the front side is taken for a front direction, it slants in the front and rear direction, and forms to have a height difference in the front and rear direction. Thus, the discharge port 4e1 is formed in the front side to discharge efficiently the liquid on thebottom portion 4a from the discharge port 4e1. - The receiving vessel 2 (as referred to
Fig.1A ), as formed as the above, is mounted to thework machine base 5 to form the engine-driven work machine 1 (as referred toFig.1A ) relating to this embodiment. -
Fig.11A is a view showing a constitution as the receiving vessel is mounted to the work machine base as seen from the front side, andFig.11B is a cross-sectional view taken along a line X9-X9 ofFig.11A . - As shown in
Fig.11A , the receivingvessel 2 relating to this embodiment is provided below thepedestal plate 51 to be inserted into a portion between both sides of theside wall portion - The
work machine base 5 and the receivingplate 2 are mounted such that the fastening means such as a bolt (as not shown) penetrates in the stop-by-screw hole 50b (as referred toFig.6A ) as formed in theside wall portion 50 and screws in thescrew hole 26b (as referred toFig.3A ) of the stop-by-screw boss 26. - As shown in
Fig.11B , the rear side of the pedestal portion 51a1 of thefront pedestal plate 51a is constituted to be piled with thewall portion 4e of the receivingplate 4 from the rear side. The front side of the pedestal portion 51b1 of therear pedestal plate 51b is constituted to be piled with thewall portion 4e of the receivingplate 4 from the front side. - In this constitution, the receiving
plate 4 is provided in theengine room 5a. For example, the leaking substance, which falls between thefront pedestal plate 51a and therear pedestal plate 51b by leaking from theengine 6b of the work machine as placed in theengine room 5a, can be securely received on the receivingplate 4. That is, the receivingplate 4 is constituted to be provided below theengine 6b to receive the leaking substance as leaked mainly from theengine 6b. - In a case where a small amount of fuel tank as not shown is arranged in the
engine room 5a, the fuel leaking from the fuel tank can be securely received on the receivingplate 4. -
Fig.12A is a schematic view showing a flow of the leaking substance received on the receiving plate and is a cross-sectional view taken along a line X10-X10 ofFig.12A . As shown inFig.12A , the leaking substance received in thebottom portion 4a flows in the side of theoblique wall 4d, such that thebottom portion 4a slants as the side of theoblique wall 4d becomes lower, when the leaking substance of the work machine (as referred toFig.11B ) falls on thebottom portion 4a of the receivingplate 4. - As shown in
Fig.12B , thebottom portion 4a of the receivingplate 4 is lower in the front side, as the receivingplate 4 is mounted to the receivingvessel 2 slanting as the front side thereof becomes lower. - Accordingly, the leaking substance received in the
bottom portion 4a flows toward thewall portion 4e of the front side, and discharges from the discharge port 4e1 to fall to the outside. - That is, the leaking substance received on the receiving
plate 4 accumulates in the lowest portion of the receivingplate 4, and the discharge port 4e1 is formed to discharge the leaking substance as accumulated in the lowest portion. - As shown in
Fig.11B , thefuel tank 3 is provided below the receivingplate 4. For example, in a case where the discharge port 4e1 of the receivingplate 4 is formed to avoid over thefuel tank 3, the leaking substance as discharged from the receivingplate 4 through the discharge port 4e1 can fall directly on the bottom surface 2a1 of the leakingsubstance receiver 2a. - On the ground that the bottom surface 2a1 of the leaking
substance receiver 2a slants as the side of thedrainage portion 2c becomes lower, the leaking substance as fallen on the bottom surface 2a1 flows and stays in the side of thedrainage portion 2c. - On opening the
drainage cock 22, the leaking substance of the leakingsubstance receiver 2a can be effectively discharged to the outside of the receivingvessel 2 in a short period. - As shown in
Fig.11A , the receivingvessel 2 relating to this embodiment is constituted to be inserted between both theside wall portions side wall portions side wall portions vessel 2. - The above constitution can discharge the rainwater as penetrated inside the
work machine cover 7, for example, from the suction port 7e (as referred toFig.7 ) formed in the opening and closing door 70 (as referred toFig.7 ), without entering the receivingvessel 2. - In the above constitution, as shown in
Fig.3A , the stop-by-screw boss 26 is formed in the side surface of the receivingvessel 2 to be mounted by the fastening means such as the bolt B to thework machine base 5 therethrough, as shown inFig.9C . As shown inFig.9C , the gap G equivalent to a thickness of aspacer 26a can be formed between the receivingvessel 2 and theside wall portion 50 of thework machine base 5. - The engine-driven work machine 1 (as shown in
Fig.1A ) relating to this embodiment is provided with the opening and closingdoor 70 in thework machine cover 7. As a result, it may be possible that the rainwater penetrates inside thework machine cover 7, for example, from the suction port 7e formed in thedoor member 70a. - As shown in
Fig.9C , the sealing property arises between thedoor member 70a and thetrim seal 71, as thedoor member 70a is engaged by thetrim seal 71. The rainwater, which penetrates inside thework machine cover 7 and falls along thedoor member 70a, cannot fall below a position in which thetrim seal 71 is in contact by applying pressure with thedoor member 70a. - Even if the rainwater falls inside the
side wall portion 50, the gap G is formed between the receivingvessel 2 and theside wall portion 50. Thus, the rainwater can be discharged through the gap G outside the engine-drivenwork machine 1 without entering the leakingsubstance receiver 2a. - Even if the rainwater falls on the
oblique surface 2b of the receivingvessel 2, the rainwater can be introduced to flow along the oblique surface into the gap G. Thus, the rainwater can be discharged outside the engine-driven work machine 1 (as referred toFig.1A ) without entering the leakingsubstance receiver 2a. - As above-mentioned, the engine-driven work machine 1 (as referred to
Fig.1A ) can discharge the rainwater to the outside without entering the leakingsubstance receiver 2a of the receiving vessel 2 (as referred toFig.2 ). Accordingly, it has an excellent advantages that a total amount of the leaking substance accumulated in the leakingsubstance receiver 2a is preferably and effectively prevented from increasing the volume of the leaking substance owing to the rain, and preferably and effectively prevented from overflowing the leaking substance from the receivingvessel 2 to the outside. - As shown in
Fig.9C , the lower engagingmember 72d relating to this embodiment has a drooping member 72d3 as the end of theupper surface 50a of theside wall portion 50 is folded down. - The above lower engaging
member 72d is constituted to be able to fall the rainwater, which falls down outside thedoor member 70a, along the drooping portion 72d3. Thus, it is preferably controlled to penetrate the rainwater inside the work machine cover 7 (as referred toFig.7 ). - Accordingly, the leaking substance accumulated in the leaking
substance receiver 2a (as referred toFig.3A ) can be preferably and effectively controlled to increase the total mount thereof and to overflow from the receiving vessel 2 (as referred toFig.1A ) to the outside owing to the rain. - Accordingly, the engine-driven work machine relating to this embodiment is preferably constituted to receive the leaking substance as leaked from the work machine on the receiving plate to effectively introduce the leaking substance thereon into the leaking substance receiver of the receiving vessel.
- In this constitution, it has an excellent advantage that the leaking substance can be recovered in the receiving vessel without leaking outside the engine-driven work machine.
- Furthermore, it is constituted to introduce the leaking substance accumulated in the leaking substance receiver to the side of the drainage cock and accumulate the leaking substance therein, as the leaking substance receiver slants so as to make lower the side of the drainage cock. Then, it has an excellent advantage that the leaking substance can be effectively discharged from the receiving vessel in a short period, when the drainage cock is opened.
Claims (4)
- An engine-driven work machine (1), comprising:a base (5) supporting a work machine (6) comprising an engine (6b) and a work machine main body (6a) driven by the engine (6b),a receiving vessel (2) with a bottom surface (2a1), the receiving vessel (2) being mounted to the base (5) and configured to receive a leaking substance leaking from the work machine (6),a fuel tank (3) being in a shape of a quadrangular prism, the fuel tank (3) being disposed inside the receiving vessel (2) and configured to store fuel for supply to the engine,a front leg (24a) and a rear leg (24b) whose heights are different from each other, such that when disposed on an installation surface the front leg (24a) and the rear leg (24b) support the receiving vessel (2) with the bottom surface (2a1) inclined relative to the installation surface,a front mounting base (25a) and a rear mounting base (25b) whose heights are different from each other, both disposed on the bottom surface (2a1) of the receiving vessel (2) and supporting the fuel tank (3) to keep the fuel tank (3) in parallel with the installation surface by offsetting a height difference between the front leg (24a) and the rear leg (24b), anda drainage portion (2c) for discharging the leaking substance collected in the lowest portion of the bottom surface (2a1).
- The engine-driven work machine (1) as claimed in Claim 1, wherein:the receiving vessel (2) comprises a box-shaped body having a shape of a quadrangular prism with the upper portion being open,the front leg (24a) and the rear leg (24b) mount the receiving vessel (2) on the installation surface such that the receiving vessel (2) is lower in height at one side thereof, andthe drainage portion (2c) is provided at said one side of the receiving vessel (2) and lower in the gradient.
- The engine-driven work machine (1) as claimed in Claim 1 or 2, wherein:a receiving plate (4) of the leaking substance leaking from the work machine (6) is arranged between the work machine (6) and the receiving vessel (2) over the fuel tank (3),the receiving plate has a height difference in the front and rear direction or in the left and right direction such that the leaking substance received thereon is collected in the lowest portion,a discharge port (4e1) is configured to discharge the leaking substance collected in the lowest portion of the receiving plate and whereby the leaking substance falls inside the receiving vessel (2).
- The engine-driven work machine (1) claimed in Claim 3, wherein:
the receiving plate is arranged below the engine (6b) and configured to receive the leaking substance leaking from the engine (6b).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008174502A JP5149718B2 (en) | 2008-07-03 | 2008-07-03 | Engine-driven work machine |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2141334A2 EP2141334A2 (en) | 2010-01-06 |
EP2141334A3 EP2141334A3 (en) | 2012-11-14 |
EP2141334B1 true EP2141334B1 (en) | 2018-05-09 |
Family
ID=41076836
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP09251720.0A Active EP2141334B1 (en) | 2008-07-03 | 2009-07-03 | Engine-driven work machine |
Country Status (3)
Country | Link |
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EP (1) | EP2141334B1 (en) |
JP (1) | JP5149718B2 (en) |
ES (1) | ES2671875T3 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5430423B2 (en) * | 2010-01-28 | 2014-02-26 | 日本車輌製造株式会社 | Engine working machine |
JP5615588B2 (en) * | 2010-05-06 | 2014-10-29 | 日本車輌製造株式会社 | Engine working machine |
JP5575584B2 (en) * | 2010-08-24 | 2014-08-20 | 日本車輌製造株式会社 | Engine working machine |
JP5642614B2 (en) * | 2011-04-07 | 2014-12-17 | 株式会社やまびこ | Engine working machine |
JP5840156B2 (en) * | 2013-02-21 | 2016-01-06 | デンヨー株式会社 | Leakage storage tank for engine work equipment |
JP6080794B2 (en) | 2014-03-26 | 2017-02-15 | ヤンマー株式会社 | Package storage type engine generator |
JP6127017B2 (en) * | 2014-05-13 | 2017-05-10 | デンヨー株式会社 | Engine driven work machine |
JP6416587B2 (en) * | 2014-10-31 | 2018-10-31 | 株式会社日立産機システム | air compressor |
JP6634308B2 (en) * | 2016-02-10 | 2020-01-22 | 北越工業株式会社 | Work machine soundproof box |
GB201703690D0 (en) * | 2017-03-08 | 2017-04-19 | Aggreko Uk Ltd | Deployment systems and methods for containerised generator systems |
EP3916211B1 (en) * | 2019-03-22 | 2022-10-19 | Honda Motor Co., Ltd. | Work machine |
JP7402738B2 (en) * | 2020-04-14 | 2023-12-21 | 北越工業株式会社 | Fuel filler cover |
CN111706429B (en) * | 2020-06-30 | 2021-06-18 | 潍柴动力股份有限公司 | Public base of diesel generating set |
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JPS50146736A (en) * | 1974-05-18 | 1975-11-25 | ||
JPS56152830U (en) * | 1980-04-15 | 1981-11-16 | ||
JP2004251219A (en) * | 2003-02-20 | 2004-09-09 | Akira Haba | Oil dike stand |
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JPS5724904Y2 (en) * | 1976-07-29 | 1982-05-29 | ||
JPS5517997U (en) * | 1978-07-22 | 1980-02-05 | ||
JPH04119270U (en) * | 1991-04-01 | 1992-10-26 | 富士バルブ株式会社 | Oil pan for trolley |
JP2000240465A (en) * | 1999-02-17 | 2000-09-05 | Nippon Sharyo Seizo Kaisha Ltd | Fuel leak detecting device for diesel engine generator |
JP3300923B2 (en) * | 1999-03-17 | 2002-07-08 | デンヨー株式会社 | Engine-driven work machine |
JP2003278558A (en) * | 2002-03-22 | 2003-10-02 | Nippon Sharyo Seizo Kaisha Ltd | Power generation device |
JP2007263062A (en) * | 2006-03-29 | 2007-10-11 | Hokuetsu Kogyo Co Ltd | Fuel tank for engine-driven type working machine |
JP2008069759A (en) * | 2006-09-15 | 2008-03-27 | Hokuetsu Kogyo Co Ltd | Engine-driven type work machine |
-
2008
- 2008-07-03 JP JP2008174502A patent/JP5149718B2/en active Active
-
2009
- 2009-07-03 ES ES09251720.0T patent/ES2671875T3/en active Active
- 2009-07-03 EP EP09251720.0A patent/EP2141334B1/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS50146736A (en) * | 1974-05-18 | 1975-11-25 | ||
JPS56152830U (en) * | 1980-04-15 | 1981-11-16 | ||
JP2004251219A (en) * | 2003-02-20 | 2004-09-09 | Akira Haba | Oil dike stand |
Also Published As
Publication number | Publication date |
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JP2010014014A (en) | 2010-01-21 |
JP5149718B2 (en) | 2013-02-20 |
ES2671875T3 (en) | 2018-06-11 |
EP2141334A2 (en) | 2010-01-06 |
EP2141334A3 (en) | 2012-11-14 |
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