US20140190757A1 - Bulldozer - Google Patents
Bulldozer Download PDFInfo
- Publication number
- US20140190757A1 US20140190757A1 US13/883,294 US201213883294A US2014190757A1 US 20140190757 A1 US20140190757 A1 US 20140190757A1 US 201213883294 A US201213883294 A US 201213883294A US 2014190757 A1 US2014190757 A1 US 2014190757A1
- Authority
- US
- United States
- Prior art keywords
- side plate
- attachment section
- rear edge
- engine cover
- planar portion
- 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.)
- Granted
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0891—Lids or bonnets or doors or details thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/10—Understructures, i.e. chassis frame on which a vehicle body may be mounted in which the main member is plate-like
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
Definitions
- the present invention relates to a bulldozer.
- a bulldozer is provided with an engine cover which is disposed in front of a cab.
- the engine cover has a side plate and the side plate is attached to a vehicle body frame.
- the engine cover is mounted onto the vehicle body frame. Since the bottom edge of the side plate is disposed close to the vehicle body frame in this type of bulldozer, it is normal for the side plate to be attached to the vehicle body frame in the vicinity of the bottom edge.
- the side plate is a portion in the engine cover where the area is comparatively large. As a result, it is easy for vibrations to be generated in the side plate. It is particularly easy for vibrations to be generated in the rear edge of the side plate when the side plate is attached to the vehicle body frame in the vicinity of the bottom edge as described above.
- the object of the present invention is to provide a bulldozer where it is possible to suppress generation of vibrations at a side plate.
- a bulldozer according to a first aspect of the present invention is provided with a vehicle body frame, a cab, and an engine cover.
- the cab is supported by the vehicle body frame.
- the engine cover is disposed in front of the cab.
- the engine cover has a side plate.
- the rear edge of the side plate has a first rear edge and a second rear edge which is positioned above the first rear edge.
- the side plate has a first planar portion which includes the first rear edge and a second planar portion which includes the second rear edge.
- the side plate has a shape which is bent between the first planar portion and the second planar portion.
- a ridgeline between the first planar portion and the second planar portion is disposed so as to span from the upper edge to the rear edge of the side plate.
- the side plate includes an attachment section which is attached to the vehicle body frame. The attachment section is positioned in the first planar portion in the vicinity of the intersection of the ridgeline and the rear edge of the side plate.
- a bulldozer according to a second aspect of the present invention is the bulldozer according to the first aspect where the side plate has an opening communicated with an inner portion of the engine cover.
- the attachment section is positioned behind the opening.
- a bulldozer according to a third aspect of the present invention is the bulldozer according to the first or second aspect where the center of gravity of the engine cover is positioned above the attachment section.
- the distance between the bottom edge of the side plate and the attachment section in the height direction is equal to or more than the distance between the attachment section and the center of gravity of the engine cover in the height direction.
- a bulldozer according to a fourth aspect of the present invention is the bulldozer according to any of the first to third aspects where the vehicle body frame has a frame body and a frame side attachment section.
- the frame body supports the cab.
- the attachment section is attached to the frame side attachment section.
- the frame side attachment section is provided so as to protrude upward from the frame body.
- a bulldozer according to a fifth aspect of the present invention is the bulldozer according to any of the first to fourth aspects where the attachment section is positioned at the same height as the intersection of the ridgeline and the rear edge of the side plate.
- a bulldozer according to a sixth aspect of the present invention is the bulldozer according to any of the first to fifth aspects where the upper surface of the engine cover is inclined downward with a forward inclination.
- a bulldozer according to a seventh aspect of the present invention is the bulldozer according to any of the first to sixth aspects where the rear edge of the side plate has a shape which is bent in a convex manner to the rear at the intersection of the first rear edge and the second rear edge.
- the attachment section is positioned in the first planar portion in the vicinity of the intersection of the ridgeline and the rear edge of the side plate.
- the upper surface of the engine cover is inclined downward with a forward inclination. Since the rear edge of the side plate is longer than the front edge of the side plate in the engine cover with such a shape, it is easy for vibrations to be generated in the rear edge of the side plate. In the bulldozer according to the aspect, it is possible to effectively suppress such vibrations.
- FIG. 1 is a side view of a bulldozer according to the first embodiment of the present invention.
- FIG. 2 is a perspective view of an engine cover of the bulldozer.
- FIG. 3 is a perspective view of the engine cover.
- FIG. 4 is an exploded view of the engine cover.
- FIG. 5 is a left side surface view of the engine cover.
- FIG. 6 is a perspective view of a vehicle body frame.
- FIG. 1 A side view of a bulldozer 1 according to a first embodiment of the present invention is shown in FIG. 1 .
- the bulldozer 1 is provided with a travel device 2 , a vehicle body 3 , and a work implement 4 .
- the travel device 2 is a device for traveling the vehicle and has crawler tracks 11 .
- the bulldozer 1 travels by the crawler tracks 11 being driven.
- the vehicle body 3 includes a vehicle body frame 10 (refer to FIG. 6 ), a cab 12 , an engine cover 13 , and a cooling device 14 .
- the cab 12 is supported by the vehicle body frame 10 .
- the engine cover 13 is disposed in front of the cab 12 .
- An engine 5 is installed in the engine cover 13 .
- the upper surface of the engine cover 13 is inclined downward with a forward inclination.
- the cooling device 14 is disposed behind the cab 12 .
- the cooling device 14 includes, for example, a radiator which cools cooling liquid in the engine 5 and an oil cooler which cools hydraulic fluid.
- the work implement 4 is provided in front of the engine cover 13 .
- the work implement 4 has a blade 15 and hydraulic cylinders 16 .
- the blade 15 is provided swingably in upward and downward directions.
- the hydraulic cylinders. 16 change the attitude of the blade 15 .
- FIG. 2 is a perspective view where the engine cover 13 is viewed from in front from a left diagonal.
- FIG. 3 is a perspective view where the engine cover 13 is viewed from the rear from a right diagonal.
- FIG. 4 is an exploded view of the engine cover 13 .
- the engine cover 13 has a left side plate 21 , a right side plate 22 , an upper surface plate 23 , a front surface plate 24 , a rear surface plate 25 , and an inner frame 26 .
- the left and right side plates 21 and 22 are disposed to be separated from each other in the vehicle width direction.
- the upper surface plate 23 is disposed across an upper edge 211 of the left side plate 21 and an upper edge 221 of the right side plate 22 .
- the upper surface plate 23 is fixed to the left and right side plates 21 and 22 by, for example, a fixing means such as welding.
- the front surface plate 24 is disposed across a front edge 212 of the left side plate 21 and a front edge 222 of the right side plate 22 .
- the front surface plate 24 is fixed to the left and right side plates 21 and 22 by, for example, a fixing means such as welding.
- the rear surface plate 25 is disposed across a rear edge 213 of the left side plate 21 and a rear edge 223 of the right side plate 22 .
- the rear surface plate 25 is fixed to the left and right side plates 21 and 22 by, for example, a fixing means such as welding.
- the inner frame 26 is disposed between the left and right side plates 21 and 22 .
- the inner frame 26 is disposed behind the front surface plate 24 .
- the inner frame 26 is attached to the vehicle body frame 10 .
- FIG. 5 is a left side view of the engine cover 13 .
- the rear edge 213 of the left side plate 21 has a first rear edge 213 a and a second rear edge 213 b.
- the first rear edge 213 a is inclined upward with a backward inclination.
- the second rear edge 213 b is positioned above the first rear edge 213 a.
- the second rear edge 213 b is inclined downward with a backward inclination.
- the rear edge 213 of the left side plate 21 has a shape which is bent in a convex manner to the rear at an intersection P 1 of the first rear edge 213 a and the second rear edge 213 b.
- the left side plate 21 has a first planar portion 215 and a second planar portion 216 .
- the first planar portion 215 includes the first rear edge 213 a.
- the second planar portion 216 includes the second rear edge 213 b. In a side view, the first planar portion 215 has an area which is larger than the second planar portion 216 .
- the first planar portion 215 includes the front edge 212 and a bottom edge 214 of the left side plate 21 .
- the left side plate 21 has a shape which is bent between the first planar portion 215 and the second planar portion 216 . Due to this, it is possible to secure a wide view from inside of the cab 12 .
- a ridgeline 217 between the first planar portion 215 and the second planar portion 216 is disposed to span from the upper edge 211 to the rear edge 213 of the left side plate 21 .
- the right side plate 22 has a shape which is roughly left and right symmetrical with the left side plate 21 . As shown in FIG. 3 , the right side plate 22 has a first planar portion 225 and a second planar portion 226 . The first planar portion 225 of the right side plate 22 has a shape which is roughly left and right symmetrical with the first planar portion 215 of the left side plate 21 . The second planar portion 226 of the right side plate 22 has a shape which is roughly left and right symmetrical with the second planar portion 216 of the left side plate 21 . Accordingly, a detailed description of the right side plate 22 will be omitted.
- the left side plate 21 has a first left opening 218 and a second left opening 219 .
- the first left opening 218 is disposed across the first planar portion 215 and the second planar portion 216 and intersects with the ridgeline 217 .
- the second left opening 219 is provided in the first planar portion 215 .
- the second left opening 219 is positioned below the first left opening 218 .
- the engine cover 13 has a left inspection door 31 .
- the left inspection door 31 covers the first left opening 218 .
- the left inspection door 31 is attached to the left side plate 21 via a hinge 32 .
- the first left opening 218 is opened and closed by the left inspection door 31 rotating centered on the hinge 32 .
- the engine cover 13 has a left inspection cover 33 .
- the left inspection cover 33 covers the second left opening 219 .
- the left inspection cover 33 is attached to the left side plate 21 using bolts so as to be able to be attached and detached.
- the right side plate 22 has a first right opening 228 and a second right opening 229 .
- the first right opening 228 is provided in the first planar portion 225 .
- the second right opening 229 is disposed across the first planar portion 225 and the second planar portion 226 and intersects with a ridgeline 227 .
- the second right opening 229 is positioned behind the first right opening 228 .
- the engine cover 13 has a first right inspection cover 34 and a second right inspection cover 35 .
- the first right inspection cover 34 covers the first right opening 228 .
- the first right inspection cover 34 is attached to the right side plate 22 using bolts so as to be able to be attached and detached.
- the second right inspection cover 35 covers the second right opening 229 .
- the second right inspection cover 35 is attached to the right side plate 22 using bolts so as to be able to be attached and detached.
- the front surface plate 24 has a front opening 241 .
- the engine cover 13 has a front inspection cover 36 .
- the front inspection cover 36 covers the front opening 241 .
- the front inspection cover 36 is attached to the front surface plate 24 using bolts so as to be able to be attached and detached.
- the left side plate 21 has a first left attachment section 41 and a second left attachment section 42 .
- the first left attachment section 41 and the second left attachment section 42 are attached to the vehicle body frame 10 .
- the first left attachment section 41 has a bolt 411 shown in FIG. 2 and a hole 412 shown in FIG. 4 where the bolt 411 is inserted.
- the first left attachment section 41 is positioned in the first planar portion 215 in the vicinity of the intersection P 1 of the ridgeline 217 and the rear edge 213 of the left side plate 21 .
- the first left attachment section 41 is positioned behind the first left opening 218 .
- the first left attachment section 41 is positioned at the same height as the intersection P 1 of the ridgeline 217 of the left side plate 21 and the rear edge 213 of the left side plate 21 .
- a center of gravity G 1 of the engine cover 13 is positioned above the first left attachment section 41 .
- a distance H 1 between the bottom edge 214 of the left side plate 21 and the first left attachment section 41 in the height direction is equal to or more than a distance H 2 between the first left attachment section 41 and the center of gravity G 1 of the engine cover 13 in the height direction.
- the second left attachment section 42 is positioned below the second left opening 219 .
- the second left attachment section 42 is positioned in front of and below the first left attachment section 41 .
- the second left attachment section 42 has a plurality of bolts 421 shown in FIG. 2 and a plurality of holes 422 shown in FIG. 4 where the bolts 421 are inserted.
- the holes 422 in the second left attachment section 42 are disposed along the bottom edge 214 of the left side plate 21 .
- the right side plate 22 has a first right attachment section 43 and a second right attachment section 44 .
- the first right attachment section 43 and the second right attachment section 44 are attached to the vehicle body frame 10 .
- the first right attachment section 43 is disposed to be roughly left and right symmetrical to the first left attachment section 41 .
- the second right attachment section 44 is disposed to be roughly left and right symmetrical to the second left attachment section 42 . Accordingly, a detailed description of the first right attachment section 43 and the second right attachment section 44 will be omitted.
- FIG. 6 is a perspective view of the vehicle body frame 10 .
- the vehicle body frame 10 has a frame body 51 .
- the frame body 51 has a left side frame 52 , a right side frame 53 , a bottom frame 54 , and a front frame 55 .
- Each of the left side frame 52 and the right side frame 53 extend in the forward and backward direction of the vehicle and are disposed to be separated from each other in the vehicle width direction.
- the bottom frame 54 connects the left side frame 52 and the right side frame 53 .
- the front frame 55 is disposed in front of the left side frame 52 and the right side frame 53 .
- the front frame 55 supports the engine 5 .
- the inner frame 26 of the engine cover 13 is attached to the front frame 55 .
- the frame body 51 has a left front cab mounting section 521 , a right front cab mounting section 531 , a left rear cab mounting section 522 , and a right rear cab mounting section 532 .
- the left front cab mounting section 521 and the left rear cab mounting section 522 are attached to the left side frame 52 .
- the right front cab mounting section 531 and the right rear cab mounting section 532 are attached to the right side frame 53 .
- the left and right front cab mounting sections 521 and 531 and the left and right rear cab mounting sections 522 and 532 support the cab 12 via a mounting device which is not shown.
- the vehicle body frame 10 has a first left frame side attachment section 56 , a second left frame side attachment section 57 , a first right frame side attachment section 58 , and a second right frame side attachment section 59 .
- Each of the first left frame side attachment section 56 , the second left frame side attachment section 57 , the first right frame side attachment section 58 , and the second right frame side attachment section 59 are provided to protrude upward from the frame body 51 .
- the first left attachment section 41 is attached in the first left frame side attachment section 56 .
- the second left attachment section 42 is attached in the second left frame side attachment section 57 .
- the first right attachment section 43 is attached in the first right frame side attachment section 58 .
- the second right attachment section 44 is attached in the second right frame side attachment section 59 .
- the first left frame side attachment section 56 has a shape similar to a plate.
- the first left frame side attachment section 56 is disposed so as to protrude upward from the left side frame 52 .
- a hole which screws together with the bolt 411 of the first left attachment section 41 is provided in the first left frame side attachment section 56 .
- the second left frame side attachment section 57 has a shape similar to a plate.
- the second left frame side attachment section 57 is disposed so as to protrude upward from the front frame 55 .
- a hole which screws together with the bolt 421 of the second left attachment section 42 is provided in the second left frame side attachment section 57 .
- the first right frame side attachment section 58 has a shape which is roughly left and right symmetrical to the first left frame side attachment section 56 .
- the second right frame side attachment section 59 has a shape which is roughly left and right symmetrical to the second left frame side attachment section 57 . Accordingly, a detailed description of the first right frame side attachment section 58 and the second right frame side attachment section 59 will be omitted.
- the first left attachment section 41 is positioned in the first planar portion 215 in the vicinity of the intersection P 1 of the ridgeline 217 and the rear edge of the side plate.
- the length of a portion of the rear edge 213 of the left side plate 21 which is not attached to the vehicle body frame 10 is shorter compared to a case where the first left attachment section 41 is disposed in the vicinity of the bottom edge 214 of the left side plate 21 . Due to this, it is possible to suppress generation of vibrations in the left side plate 21 .
- the first left attachment section 41 is disposed behind the first left opening 218 . As a result, it is possible to suppress generation of vibrations at the edge of the first left opening 218 .
- the distance H 1 between the bottom edge 214 of the left side plate 21 and the first left attachment section 41 in the height direction is equal to or more than the distance H 2 between the first left attachment section 41 and the center of gravity G 1 of the engine cover 13 in the height direction. As a result, it is possible to further suppress generation of vibrations in the left side plate 21 .
- the first left frame side attachment section 56 is provided so as to protrude upward from the frame body 51 . As a result, it is possible to dispose the first left attachment section 41 in a high position with a simple configuration compared to a case where the frame body 51 itself is expanded upward.
- the first left attachment section 41 is positioned at the same height as the intersection P 1 of the ridgeline 217 of the left side plate 21 and the rear edge 213 of the left side plate 21 . As a result, it is possible to further suppress generation of vibrations in the left side plate 21 .
- the upper surface of the engine cover 13 is inclined downward with a forward inclination. Since the rear edge 213 of the left side plate 21 is longer than the front edge 212 of the left side plate 21 in the engine cover 13 with such a shape, it is easy for vibrations to be generated in the rear edge 213 of the left side plate 21 . In the bulldozer according to the embodiment, it is possible to effectively suppress generation of such vibrations.
- the attachment section is configured using the bolt and the hole. However, it is sufficient if the attachment section is a configuration which is different to the embodiment described above as long as it is a configuration for attaching the side plate to the vehicle body frame 10 .
- the configuration of the side plate of the present invention is applicable to both the left and right side plates 21 and 22 .
- the configuration of the side plate of the present invention is applied to either the left or the right side plate 21 and 22 .
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Abstract
Description
- This application claims priority to Japanese Patent Application No. 2012-177673 filed on Aug. 10, 2012, the disclosure of which is hereby incorporated herein by reference in its entirety.
- 1. Technical Field
- The present invention relates to a bulldozer.
- 2. Background Information
- A bulldozer is provided with an engine cover which is disposed in front of a cab. The engine cover has a side plate and the side plate is attached to a vehicle body frame. For example, in a bulldozer which is disclosed in Japanese Laid-open Patent Application No. 2005-113674, the engine cover is mounted onto the vehicle body frame. Since the bottom edge of the side plate is disposed close to the vehicle body frame in this type of bulldozer, it is normal for the side plate to be attached to the vehicle body frame in the vicinity of the bottom edge.
- The side plate is a portion in the engine cover where the area is comparatively large. As a result, it is easy for vibrations to be generated in the side plate. It is particularly easy for vibrations to be generated in the rear edge of the side plate when the side plate is attached to the vehicle body frame in the vicinity of the bottom edge as described above.
- The object of the present invention is to provide a bulldozer where it is possible to suppress generation of vibrations at a side plate.
- A bulldozer according to a first aspect of the present invention is provided with a vehicle body frame, a cab, and an engine cover. The cab is supported by the vehicle body frame. The engine cover is disposed in front of the cab. The engine cover has a side plate. The rear edge of the side plate has a first rear edge and a second rear edge which is positioned above the first rear edge. The side plate has a first planar portion which includes the first rear edge and a second planar portion which includes the second rear edge. The side plate has a shape which is bent between the first planar portion and the second planar portion. A ridgeline between the first planar portion and the second planar portion is disposed so as to span from the upper edge to the rear edge of the side plate. The side plate includes an attachment section which is attached to the vehicle body frame. The attachment section is positioned in the first planar portion in the vicinity of the intersection of the ridgeline and the rear edge of the side plate.
- A bulldozer according to a second aspect of the present invention is the bulldozer according to the first aspect where the side plate has an opening communicated with an inner portion of the engine cover. The attachment section is positioned behind the opening.
- A bulldozer according to a third aspect of the present invention is the bulldozer according to the first or second aspect where the center of gravity of the engine cover is positioned above the attachment section. The distance between the bottom edge of the side plate and the attachment section in the height direction is equal to or more than the distance between the attachment section and the center of gravity of the engine cover in the height direction.
- A bulldozer according to a fourth aspect of the present invention is the bulldozer according to any of the first to third aspects where the vehicle body frame has a frame body and a frame side attachment section. The frame body supports the cab. The attachment section is attached to the frame side attachment section. The frame side attachment section is provided so as to protrude upward from the frame body.
- A bulldozer according to a fifth aspect of the present invention is the bulldozer according to any of the first to fourth aspects where the attachment section is positioned at the same height as the intersection of the ridgeline and the rear edge of the side plate.
- A bulldozer according to a sixth aspect of the present invention is the bulldozer according to any of the first to fifth aspects where the upper surface of the engine cover is inclined downward with a forward inclination.
- A bulldozer according to a seventh aspect of the present invention is the bulldozer according to any of the first to sixth aspects where the rear edge of the side plate has a shape which is bent in a convex manner to the rear at the intersection of the first rear edge and the second rear edge.
- In the bulldozer according to the first aspect of the present invention, the attachment section is positioned in the first planar portion in the vicinity of the intersection of the ridgeline and the rear edge of the side plate. As a result, it is possible to suppress generation of vibrations at the rear edge of the side plate compared to a case where the side plate is attached to the vehicle body frame at the bottom edge.
- In the bulldozer according to the second aspect of the present invention, it is possible to suppress generation of vibrations at an edge portion of the opening.
- In the bulldozer according to the third aspect of the present invention, it is possible to further suppress generation of vibrations in the side plate.
- In the bulldozer according to the fourth aspect of the present invention, it is possible to dispose the attachment section in a high position with a simple configuration.
- In the bulldozer according to the fifth aspect of the present invention, it is possible to further suppress generation of vibrations in the side plate.
- In the bulldozer according to the sixth aspect of the present invention, the upper surface of the engine cover is inclined downward with a forward inclination. Since the rear edge of the side plate is longer than the front edge of the side plate in the engine cover with such a shape, it is easy for vibrations to be generated in the rear edge of the side plate. In the bulldozer according to the aspect, it is possible to effectively suppress such vibrations.
- In the bulldozer according to the seventh aspect of the present invention, it is possible to further suppress vibrations by reducing the area of the side plate.
-
FIG. 1 is a side view of a bulldozer according to the first embodiment of the present invention. -
FIG. 2 is a perspective view of an engine cover of the bulldozer. -
FIG. 3 is a perspective view of the engine cover. -
FIG. 4 is an exploded view of the engine cover. -
FIG. 5 is a left side surface view of the engine cover. -
FIG. 6 is a perspective view of a vehicle body frame. - A side view of a
bulldozer 1 according to a first embodiment of the present invention is shown inFIG. 1 . Thebulldozer 1 is provided with atravel device 2, a vehicle body 3, and a work implement 4. Thetravel device 2 is a device for traveling the vehicle and hascrawler tracks 11. Thebulldozer 1 travels by thecrawler tracks 11 being driven. - The vehicle body 3 includes a vehicle body frame 10 (refer to
FIG. 6 ), acab 12, anengine cover 13, and acooling device 14. Thecab 12 is supported by thevehicle body frame 10. Theengine cover 13 is disposed in front of thecab 12. Anengine 5 is installed in theengine cover 13. The upper surface of theengine cover 13 is inclined downward with a forward inclination. Thecooling device 14 is disposed behind thecab 12. Thecooling device 14 includes, for example, a radiator which cools cooling liquid in theengine 5 and an oil cooler which cools hydraulic fluid. - The work implement 4 is provided in front of the
engine cover 13. The work implement 4 has ablade 15 andhydraulic cylinders 16. Theblade 15 is provided swingably in upward and downward directions. The hydraulic cylinders. 16 change the attitude of theblade 15. -
FIG. 2 is a perspective view where theengine cover 13 is viewed from in front from a left diagonal.FIG. 3 is a perspective view where theengine cover 13 is viewed from the rear from a right diagonal.FIG. 4 is an exploded view of theengine cover 13. - The
engine cover 13 has aleft side plate 21, aright side plate 22, anupper surface plate 23, afront surface plate 24, arear surface plate 25, and aninner frame 26. The left andright side plates upper surface plate 23 is disposed across anupper edge 211 of theleft side plate 21 and anupper edge 221 of theright side plate 22. Theupper surface plate 23 is fixed to the left andright side plates front surface plate 24 is disposed across afront edge 212 of theleft side plate 21 and afront edge 222 of theright side plate 22. Thefront surface plate 24 is fixed to the left andright side plates rear surface plate 25 is disposed across arear edge 213 of theleft side plate 21 and arear edge 223 of theright side plate 22. Therear surface plate 25 is fixed to the left andright side plates inner frame 26 is disposed between the left andright side plates inner frame 26 is disposed behind thefront surface plate 24. Theinner frame 26 is attached to thevehicle body frame 10. -
FIG. 5 is a left side view of theengine cover 13. As shown inFIG. 5 , therear edge 213 of theleft side plate 21 has a firstrear edge 213 a and a secondrear edge 213 b. In a side view, the firstrear edge 213 a is inclined upward with a backward inclination. The secondrear edge 213 b is positioned above the firstrear edge 213 a. The secondrear edge 213 b is inclined downward with a backward inclination. Therear edge 213 of theleft side plate 21 has a shape which is bent in a convex manner to the rear at an intersection P1 of the firstrear edge 213 a and the secondrear edge 213 b. Theleft side plate 21 has a firstplanar portion 215 and a secondplanar portion 216. The firstplanar portion 215 includes the firstrear edge 213 a. The secondplanar portion 216 includes the secondrear edge 213 b. In a side view, the firstplanar portion 215 has an area which is larger than the secondplanar portion 216. The firstplanar portion 215 includes thefront edge 212 and abottom edge 214 of theleft side plate 21. - The
left side plate 21 has a shape which is bent between the firstplanar portion 215 and the secondplanar portion 216. Due to this, it is possible to secure a wide view from inside of thecab 12. Aridgeline 217 between the firstplanar portion 215 and the secondplanar portion 216 is disposed to span from theupper edge 211 to therear edge 213 of theleft side plate 21. - The
right side plate 22 has a shape which is roughly left and right symmetrical with theleft side plate 21. As shown inFIG. 3 , theright side plate 22 has a firstplanar portion 225 and a second planar portion 226. The firstplanar portion 225 of theright side plate 22 has a shape which is roughly left and right symmetrical with the firstplanar portion 215 of theleft side plate 21. The second planar portion 226 of theright side plate 22 has a shape which is roughly left and right symmetrical with the secondplanar portion 216 of theleft side plate 21. Accordingly, a detailed description of theright side plate 22 will be omitted. - As shown in
FIG. 4 , theleft side plate 21 has a firstleft opening 218 and a secondleft opening 219. The firstleft opening 218 is disposed across the firstplanar portion 215 and the secondplanar portion 216 and intersects with theridgeline 217. The secondleft opening 219 is provided in the firstplanar portion 215. The secondleft opening 219 is positioned below the firstleft opening 218. - As shown in
FIG. 2 , theengine cover 13 has aleft inspection door 31. Theleft inspection door 31 covers the firstleft opening 218. Theleft inspection door 31 is attached to theleft side plate 21 via ahinge 32. The firstleft opening 218 is opened and closed by theleft inspection door 31 rotating centered on thehinge 32. Theengine cover 13 has aleft inspection cover 33. Theleft inspection cover 33 covers the secondleft opening 219. Theleft inspection cover 33 is attached to theleft side plate 21 using bolts so as to be able to be attached and detached. - As shown in
FIG. 4 , theright side plate 22 has a firstright opening 228 and a secondright opening 229. The firstright opening 228 is provided in the firstplanar portion 225. The secondright opening 229 is disposed across the firstplanar portion 225 and the second planar portion 226 and intersects with a ridgeline 227. The secondright opening 229 is positioned behind the firstright opening 228. - As shown in
FIG. 3 , theengine cover 13 has a firstright inspection cover 34 and a secondright inspection cover 35. The firstright inspection cover 34 covers the firstright opening 228. The firstright inspection cover 34 is attached to theright side plate 22 using bolts so as to be able to be attached and detached. The secondright inspection cover 35 covers the secondright opening 229. The secondright inspection cover 35 is attached to theright side plate 22 using bolts so as to be able to be attached and detached. - As shown in
FIG. 4 , thefront surface plate 24 has afront opening 241. As shown inFIG. 2 , theengine cover 13 has afront inspection cover 36. The front inspection cover 36 covers thefront opening 241. Thefront inspection cover 36 is attached to thefront surface plate 24 using bolts so as to be able to be attached and detached. - As shown in
FIG. 2 , theleft side plate 21 has a firstleft attachment section 41 and a secondleft attachment section 42. The firstleft attachment section 41 and the secondleft attachment section 42 are attached to thevehicle body frame 10. The firstleft attachment section 41 has abolt 411 shown inFIG. 2 and ahole 412 shown inFIG. 4 where thebolt 411 is inserted. As shown inFIG. 5 , the firstleft attachment section 41 is positioned in the firstplanar portion 215 in the vicinity of the intersection P1 of theridgeline 217 and therear edge 213 of theleft side plate 21. The firstleft attachment section 41 is positioned behind the firstleft opening 218. The firstleft attachment section 41 is positioned at the same height as the intersection P1 of theridgeline 217 of theleft side plate 21 and therear edge 213 of theleft side plate 21. - As shown in
FIG. 5 , a center of gravity G1 of theengine cover 13 is positioned above the firstleft attachment section 41. A distance H1 between thebottom edge 214 of theleft side plate 21 and the firstleft attachment section 41 in the height direction is equal to or more than a distance H2 between the firstleft attachment section 41 and the center of gravity G1 of theengine cover 13 in the height direction. - The second
left attachment section 42 is positioned below the secondleft opening 219. The secondleft attachment section 42 is positioned in front of and below the firstleft attachment section 41. The secondleft attachment section 42 has a plurality ofbolts 421 shown inFIG. 2 and a plurality ofholes 422 shown inFIG. 4 where thebolts 421 are inserted. Theholes 422 in the secondleft attachment section 42 are disposed along thebottom edge 214 of theleft side plate 21. - As shown in
FIG. 3 , theright side plate 22 has a firstright attachment section 43 and a secondright attachment section 44. The firstright attachment section 43 and the secondright attachment section 44 are attached to thevehicle body frame 10. The firstright attachment section 43 is disposed to be roughly left and right symmetrical to the firstleft attachment section 41. The secondright attachment section 44 is disposed to be roughly left and right symmetrical to the secondleft attachment section 42. Accordingly, a detailed description of the firstright attachment section 43 and the secondright attachment section 44 will be omitted. -
FIG. 6 is a perspective view of thevehicle body frame 10. Thevehicle body frame 10 has aframe body 51. Theframe body 51 has aleft side frame 52, aright side frame 53, abottom frame 54, and afront frame 55. Each of theleft side frame 52 and theright side frame 53 extend in the forward and backward direction of the vehicle and are disposed to be separated from each other in the vehicle width direction. Thebottom frame 54 connects theleft side frame 52 and theright side frame 53. Thefront frame 55 is disposed in front of theleft side frame 52 and theright side frame 53. Thefront frame 55 supports theengine 5. Theinner frame 26 of theengine cover 13 is attached to thefront frame 55. - The
frame body 51 has a left frontcab mounting section 521, a right frontcab mounting section 531, a left rearcab mounting section 522, and a right rearcab mounting section 532. The left frontcab mounting section 521 and the left rearcab mounting section 522 are attached to theleft side frame 52. The right frontcab mounting section 531 and the right rearcab mounting section 532 are attached to theright side frame 53. The left and right frontcab mounting sections cab mounting sections cab 12 via a mounting device which is not shown. - The
vehicle body frame 10 has a first left frameside attachment section 56, a second left frameside attachment section 57, a first right frameside attachment section 58, and a second right frameside attachment section 59. Each of the first left frameside attachment section 56, the second left frameside attachment section 57, the first right frameside attachment section 58, and the second right frameside attachment section 59 are provided to protrude upward from theframe body 51. The firstleft attachment section 41 is attached in the first left frameside attachment section 56. The secondleft attachment section 42 is attached in the second left frameside attachment section 57. The firstright attachment section 43 is attached in the first right frameside attachment section 58. The secondright attachment section 44 is attached in the second right frameside attachment section 59. - The first left frame
side attachment section 56 has a shape similar to a plate. The first left frameside attachment section 56 is disposed so as to protrude upward from theleft side frame 52. A hole which screws together with thebolt 411 of the firstleft attachment section 41 is provided in the first left frameside attachment section 56. The second left frameside attachment section 57 has a shape similar to a plate. The second left frameside attachment section 57 is disposed so as to protrude upward from thefront frame 55. A hole which screws together with thebolt 421 of the secondleft attachment section 42 is provided in the second left frameside attachment section 57. The first right frameside attachment section 58 has a shape which is roughly left and right symmetrical to the first left frameside attachment section 56. The second right frameside attachment section 59 has a shape which is roughly left and right symmetrical to the second left frameside attachment section 57. Accordingly, a detailed description of the first right frameside attachment section 58 and the second right frameside attachment section 59 will be omitted. - In the bulldozer according to the present embodiment, the first
left attachment section 41 is positioned in the firstplanar portion 215 in the vicinity of the intersection P1 of theridgeline 217 and the rear edge of the side plate. As a result, the length of a portion of therear edge 213 of theleft side plate 21 which is not attached to thevehicle body frame 10 is shorter compared to a case where the firstleft attachment section 41 is disposed in the vicinity of thebottom edge 214 of theleft side plate 21. Due to this, it is possible to suppress generation of vibrations in theleft side plate 21. - The first
left attachment section 41 is disposed behind the firstleft opening 218. As a result, it is possible to suppress generation of vibrations at the edge of the firstleft opening 218. - The distance H1 between the
bottom edge 214 of theleft side plate 21 and the firstleft attachment section 41 in the height direction is equal to or more than the distance H2 between the firstleft attachment section 41 and the center of gravity G1 of theengine cover 13 in the height direction. As a result, it is possible to further suppress generation of vibrations in theleft side plate 21. - The first left frame
side attachment section 56 is provided so as to protrude upward from theframe body 51. As a result, it is possible to dispose the firstleft attachment section 41 in a high position with a simple configuration compared to a case where theframe body 51 itself is expanded upward. - The first
left attachment section 41 is positioned at the same height as the intersection P1 of theridgeline 217 of theleft side plate 21 and therear edge 213 of theleft side plate 21. As a result, it is possible to further suppress generation of vibrations in theleft side plate 21. - The upper surface of the
engine cover 13 is inclined downward with a forward inclination. Since therear edge 213 of theleft side plate 21 is longer than thefront edge 212 of theleft side plate 21 in theengine cover 13 with such a shape, it is easy for vibrations to be generated in therear edge 213 of theleft side plate 21. In the bulldozer according to the embodiment, it is possible to effectively suppress generation of such vibrations. - Above, the effect of suppressing vibrations in the
left side plate 21 using the firstleft attachment section 41 has been described, but in the same manner, it is possible to obtain the effect of suppressing vibrations in theright side plate 22 using the firstright attachment section 43. - Above, an embodiment of the present invention has been described, but the present invention is not limited to the embodiment described above and various modifications are possible in a scope which does not depart from the scope of the invention.
- In the embodiment described above, the attachment section is configured using the bolt and the hole. However, it is sufficient if the attachment section is a configuration which is different to the embodiment described above as long as it is a configuration for attaching the side plate to the
vehicle body frame 10. - In the embodiment described above, the configuration of the side plate of the present invention is applicable to both the left and
right side plates right side plate - According to the present invention, it is possible to provide a bulldozer where it is possible to suppress generation of vibrations in a side plate.
Claims (11)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012177673A JP5496284B2 (en) | 2012-08-10 | 2012-08-10 | Bulldozer |
JP2012-177673 | 2012-08-10 | ||
PCT/JP2012/073215 WO2014024325A1 (en) | 2012-08-10 | 2012-09-11 | Bulldozer |
Publications (2)
Publication Number | Publication Date |
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US20140190757A1 true US20140190757A1 (en) | 2014-07-10 |
US8789637B1 US8789637B1 (en) | 2014-07-29 |
Family
ID=50067602
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US13/883,294 Active US8789637B1 (en) | 2012-08-10 | 2012-09-11 | Bulldozer |
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US (1) | US8789637B1 (en) |
JP (1) | JP5496284B2 (en) |
CN (1) | CN103748290B (en) |
WO (1) | WO2014024325A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140292033A1 (en) * | 2013-03-29 | 2014-10-02 | Komatsu Ltd. | Bullzozer |
US9051709B1 (en) * | 2014-02-21 | 2015-06-09 | Komatsu Ltd. | Work vehicle |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016092868A1 (en) | 2014-12-12 | 2016-06-16 | 株式会社小松製作所 | Work vehicle |
US10207577B2 (en) * | 2015-10-23 | 2019-02-19 | Komatsu Ltd. | Tractor |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
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JPS5920510B2 (en) * | 1975-07-29 | 1984-05-14 | 株式会社小松製作所 | construction vehicle engine cover |
US4071107A (en) * | 1976-09-27 | 1978-01-31 | Caterpillar Tractor Co. | Engine side guard mounting |
JP4199584B2 (en) * | 2003-04-10 | 2008-12-17 | 株式会社小松製作所 | Engine room cover for work machine |
CN1605685A (en) * | 2003-10-09 | 2005-04-13 | 株式会社小松制作所 | Engineering vehicle with improved forward visibility |
US8695722B2 (en) * | 2003-10-09 | 2014-04-15 | Komatsu Ltd. | Bulldozer with improved visibility |
US7401673B2 (en) * | 2005-09-15 | 2008-07-22 | Komatsu Ltd. | Frame structure for construction machine |
US20070187163A1 (en) * | 2006-02-10 | 2007-08-16 | Deere And Company | Noise reducing side shields |
MX2008006752A (en) * | 2007-05-23 | 2009-03-04 | Paccar Inc | Hood adjustment assembly. |
JP2009001139A (en) * | 2007-06-21 | 2009-01-08 | Yanmar Co Ltd | Riding type work vehicle |
JP5216735B2 (en) | 2009-09-30 | 2013-06-19 | 新電元工業株式会社 | Semiconductor package |
US8225894B2 (en) * | 2009-11-16 | 2012-07-24 | Kawasaki Jukogyo Kabushiki Kaisha | Utility vehicle |
CN201738354U (en) * | 2010-05-26 | 2011-02-09 | 鼎盛天工工程机械股份有限公司 | Engine cover for grader capable of being fitted with various engines |
JP2012136069A (en) * | 2010-12-24 | 2012-07-19 | Iseki & Co Ltd | Working vehicle |
-
2012
- 2012-08-10 JP JP2012177673A patent/JP5496284B2/en active Active
- 2012-09-11 CN CN201280004307.8A patent/CN103748290B/en active Active
- 2012-09-11 US US13/883,294 patent/US8789637B1/en active Active
- 2012-09-11 WO PCT/JP2012/073215 patent/WO2014024325A1/en active Application Filing
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140292033A1 (en) * | 2013-03-29 | 2014-10-02 | Komatsu Ltd. | Bullzozer |
US8973976B2 (en) * | 2013-03-29 | 2015-03-10 | Komatsu Ltd. | Bulldozer |
US9051709B1 (en) * | 2014-02-21 | 2015-06-09 | Komatsu Ltd. | Work vehicle |
Also Published As
Publication number | Publication date |
---|---|
JP5496284B2 (en) | 2014-05-21 |
CN103748290B (en) | 2014-11-05 |
JP2014034846A (en) | 2014-02-24 |
US8789637B1 (en) | 2014-07-29 |
WO2014024325A1 (en) | 2014-02-13 |
CN103748290A (en) | 2014-04-23 |
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