WO2014065211A1 - Construction machinery - Google Patents
Construction machinery Download PDFInfo
- Publication number
- WO2014065211A1 WO2014065211A1 PCT/JP2013/078318 JP2013078318W WO2014065211A1 WO 2014065211 A1 WO2014065211 A1 WO 2014065211A1 JP 2013078318 W JP2013078318 W JP 2013078318W WO 2014065211 A1 WO2014065211 A1 WO 2014065211A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- counterweight
- camera device
- convex curved
- mounting plate
- cover member
- Prior art date
Links
- 238000010276 construction Methods 0.000 title claims description 19
- 238000003466 welding Methods 0.000 claims description 22
- 238000003780 insertion Methods 0.000 claims description 17
- 230000037431 insertion Effects 0.000 claims description 17
- 230000004308 accommodation Effects 0.000 claims description 8
- 239000013013 elastic material Substances 0.000 claims description 6
- 238000005452 bending Methods 0.000 description 7
- 230000002265 prevention Effects 0.000 description 4
- 238000009966 trimming Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000004576 sand Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Images
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
- E02F9/26—Indicating devices
-
- 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
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/30—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom
- E02F3/32—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a dipper-arm pivoted on a cantilever beam, i.e. boom working downwardly and towards the machine, e.g. with backhoes
-
- 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
-
- 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
- E02F9/18—Counterweights
-
- 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
- E02F9/26—Indicating devices
- E02F9/261—Surveying the work-site to be treated
Definitions
- the present invention relates to a construction machine provided with a counterweight such as, for example, a hydraulic shovel or a hydraulic crane.
- a vehicle body is constituted by a self-propelled lower traveling body and an upper revolving body rotatably mounted on the lower traveling body, and provided movably on the upper revolving body.
- the earth and sand excavating work is carried out using the work apparatus described above.
- the upper swing body has a swing frame as a base, and a working device is attached to the front side of the swing frame.
- a counterweight is provided to balance the weight with the working device.
- Some recent hydraulic shovels are provided with a rear camera device (rear camera device) in order to obtain a wide rear view.
- the rear camera device secures a view behind the vehicle body which is a blind spot for the operator in the cab at the time of excavating operation.
- the rear camera device is attached to the rear side of the upper surface of the counterweight ( Patent Document 1 and Patent Document 2).
- the present invention has been made in view of the above-described problems of the prior art, and an object of the present invention is to provide a counterweight rear weight to a counterweight, and to prevent theft of the rear camera.
- the construction machine according to the present invention comprises a self-propelled vehicle body, a work device provided on the front side of the vehicle body, and a counterweight provided on the rear side of the vehicle body to balance the weight of the work device. And a rear camera mounted on the top of the counterweight to obtain a rear view.
- the counterweight is formed as a block body having a convex curved surface in which the boundary position between the rear surface and the upper surface is curved in a convex arc shape.
- the rear camera device is disposed on the upper surface of the counterweight and protrudes toward the convex curved surface of the counterweight, and the convex curved surface of the counterweight and the rear lower side of the rear camera device Between the positions, a cover member is provided to cover the gap formed by the convex curved surface.
- the rear camera device is disposed so as to protrude toward the convex curved surface of the counterweight. Therefore, the rear camera device can project the situation at the rear of the vehicle body to a position near the rear of the vehicle body (rear surface of the counterweight) without being blocked by the counterweight, and can provide the operator with a wide rear view.
- the cover member since a cover member is provided between the convex curved surface of the counterweight and the rear lower position of the rear camera device, the cover member directs the rear camera device to the convex curved surface. By protruding, the gap formed between the convex curved surface of the counterweight and the lower rear position of the rear camera device can be covered.
- the gap formed between the rear camera device and the rear curved camera can be covered with the cover member.
- the counterweight and the rear camera device can be integrally provided, and the appearance can be improved.
- the cover member can hide parts constituting the rear camera device, for example, a bolt fixing an internal camera body or the like. Therefore, the cover member can prevent the rear camera device from being disassembled and the part being stolen.
- the rear camera device includes a mounting plate extending in the front and rear directions and mounted on the upper surface of the counterweight, a camera housing provided on the rear side on the mounting plate, and housed in the camera housing
- the cover member is configured to be mounted at a lower rear position of the mounting plate.
- the cover member is configured to be attached to the lower rear position of the mounting plate that is the base of the rear camera device, so this cover member is easily attached to the rear camera device using fixing means such as welding. It can be attached to In a state where the cover member is attached to the rear camera device, for example, a bolt or the like fixing the camera body to the mounting plate can be covered by the cover member to prevent the rear camera device from being disassembled. Can.
- the upper surface of the counterweight is provided with an accommodation recess at a central portion in the left and right directions, and the upper surface of the counterweight is covered with the accommodation recess and a top plate attached to the upper surface
- a camera device mounting member including a concave bottom plate attached to the lower surface of the top plate and fitted in the housing recess, and the lower surface of the top plate is a welding nut having a female screw hole at a position facing the concave bottom plate.
- the mounting plate of the rear camera device is provided with a bolt insertion hole at a position corresponding to the welding nut, and the mounting plate is mounted on the welding nut through the bolt insertion hole using a bolt. It is in the configuration of mounting.
- the top plate is attached to the upper surface of the counterweight in a state in which the concave bottom plate is accommodated in the accommodation recess.
- the rear camera device can be mounted on the upper surface of the counterweight by attaching the mounting plate of the rear camera device to the top plate of the camera device mounting member using a bolt.
- the cover member is configured to be provided with a rim member made of an elastic material so as to cover the lower end edge opposite to the convex curved surface of the counterweight.
- the cover member can be elastically in close contact with the convex curved surface of the counterweight via the trimming member.
- the clearance between the cover member and the convex curved surface can be eliminated to improve the crime prevention performance, and the appearance can be improved.
- the edge member made of an elastic material can prevent the cover member from colliding with the counterweight to generate noise or damage the cover member or the counterweight, and can extend the life of these.
- the cover member closes the gap between the rear end of the rear camera device at the rear lower position and the counterweight, and the rear plate from the left and right ends of the rear plate.
- the present invention is formed by the left and right inclined plate portions that extend forward along the convex curved surface of the counterweight and close the left and right gaps between the counterweight and the counterweight.
- the gap formed between the convex curved surface of the counterweight and the lower rear position of the rear camera device can cover the rear side by the rear plate portion, and the left and right sides are left , Can be covered by the right inclined plate portion.
- the lower end edges of the left and right inclined plate portions of the cover member are formed in a concave arc shape along the convex curved surface of the counterweight. Accordingly, the concave lower end of the cover member can be brought into close contact with the convex curved surface of the counterweight. As a result, the gap between the cover member and the counterweight can be reduced, so that the crime prevention performance can be improved, and the appearance can be improved.
- FIG. 1 is a left side view showing a hydraulic shovel according to an embodiment of the present invention. It is the perspective view of the principal part expansion which looked at the rear side of the hydraulic shovel from the diagonally left rear. It is sectional drawing of the principal part expansion which shows a counterweight, an engine cover, a camera apparatus attachment member, a back camera apparatus, a cover member etc. It is the perspective view which expanded the principal part which looked at the back camera apparatus and cover member which were attached on the counterweight from the lower side. It is the perspective view which saw the counter weight, the camera apparatus attachment member, a rear camera apparatus, a cover member etc. from the left diagonal front. It is the disassembled perspective view which looked at a back camera apparatus, a cover member, etc. from the left diagonal back side.
- FIGS. 1 to 9 taking the case of application to a crawler hydraulic excavator as an example.
- reference numeral 1 denotes a hydraulic shovel as a representative example of a construction machine.
- the vehicle body of the hydraulic shovel 1 is composed of a crawler type lower traveling body 2 capable of self-propelled movement and an upper revolving structure 3 rotatably mounted on the lower traveling body 2.
- a working device 4 for carrying out a digging operation of earth and sand is provided so as to be capable of raising and lowering.
- the upper swing body 3 has a swing frame 5 forming a support structure, and the base end of the working device 4 is rotatably attached to the front side of the swing frame 5.
- a counterweight 9 described later for balancing the weight with the work device 4 is attached.
- a cab 6 into which an operator gets in when operating the hydraulic shovel 1 is disposed.
- a driver's seat, various operation levers, and a monitor device are disposed.
- a building cover 7 is provided on the front side of the counterweight 9, and the building cover 7 accommodates mounted devices (all not shown) including an engine, a hydraulic pump, and a heat exchange device.
- the building cover 7 is located on the left and right sides of the turning frame 5 and extends left and right side plates 7A, and the upper portions of the side plates 7A. It is comprised by the upper surface board 7B extended in the horizontal direction between.
- the rear side of the building cover 7 is closed by the front face 9A of the counterweight 9.
- the engine cover 8 is provided on the upper surface plate 7B of the building cover 7, and the engine cover 8 covers the mounted equipment accommodated in the building cover 7 from above.
- the engine cover 8 covers, among the mounted devices housed in the building cover 7, a device requiring periodic maintenance work, such as an engine and a heat exchanger, from the upper side so as to be able to be opened and closed.
- the engine cover 8 is rotatably attached to a cover support frame (not shown) which constitutes a part of the pivot frame 5 in the upper and lower directions.
- the engine cover 8 is configured to cover the front portion of the mounting plate 12 of the rear camera device 11, which will be described later, in the closed state. As a result, when the engine cover 8 is closed, the mounting plate 12 can not be removed or tilted left or right.
- the reference numeral 9 denotes a counterweight that balances the weight with the work device 4, and the counterweight 9 is disposed on the rear side of the swing frame 5 that constitutes the upper swing body 3.
- the counterweight 9 is configured as a block body by filling a weight adjusting material in a casing forming an outer shell. As shown in FIGS. 1 and 2, the counterweight 9 has a rectangular front surface 9A extending left and right so as to face the engine, and a left and right extending circularly on the left and right.
- a rear surface 9B which is curved in an arc and extends forward toward the both ends of the front surface 9A, a D-shaped upper surface 9C surrounded by the front surface 9A and the rear surface 9B, and a lower surface mounted on the turning frame 5 And 9D.
- the boundary between the rear surface 9B and the upper surface 9C of the counterweight 9 has a convex circular arc shape so that the boundary position between the rear surface 9B and the upper surface 9C of the counterweight 9 is connected smoothly. It is a curved convex curved surface 9E. That is, as shown in FIG. 3, when the uppermost position of the rear surface 9B of the counterweight 9 is the upper end 9B1 and the rearmost position of the upper surface 9C is the rear end 9C1, the convex curved surface 9E is the upper end 9B1. And the rear end 9C1.
- FIG. 3 when the uppermost position of the rear surface 9B of the counterweight 9 is the upper end 9B1 and the rearmost position of the upper surface 9C is the rear end 9C1, the convex curved surface 9E is the upper end 9B1. And the rear end 9C1.
- the upper end 9B1 of the rear surface 9B and the rear end 9C1 of the upper surface 9C are represented by solid lines, but between the rear surface 9B and the convex curved surface 9E and the upper surface 9C and convex curvature Between the surface 9E and the surface 9E, it is smoothly continuous in an arc shape. As shown in FIG. 1, the boundary position between the rear surface 9B and the lower surface 9D is also a convex curved surface 9F curved in a convex arc shape. Thus, the counterweight 9 has upper and lower convex curved surfaces 9E and 9F, and the appearance of the outer shape is improved.
- the counterweight 9 is positioned at the center of the upper surface 9C in the left and right directions and extends in the front and rear directions to form a housing recess 9G having a rectangular flat surface.
- the housing recess 9G is open at the upper side and the front side.
- the housing recess 9G accommodates the concave bottom plate 10B of the camera device mounting member 10 when the camera device mounting member 10 described later is mounted on the upper surface 9C of the counterweight 9.
- the camera device mounting member 10 is provided on the counterweight 9, and the rear camera device 11 described later is mounted on the camera device mounting member 10.
- the camera device mounting member 10 is disposed at the center of the upper surface 9C in the left and right directions so as to cover the accommodation recess 9G of the counterweight 9.
- the camera device mounting member 10 is a rectangular plate and covers the accommodation recess 9G of the counterweight 9 and is mounted on the upper surface 9C, and the lower surface of the top plate 10A.
- a concave bottom plate 10B which is formed to be recessed so as to be fitted into the accommodation recess 9G.
- Top plate 10A constitutes a part of upper surface 9C by being fixed to upper surface 9C of counterweight 9 using, for example, a welding means.
- the top plate 10A of the camera device mounting member 10 four through holes 10C are provided at positions facing the concave bottom plate 10B at intervals in the front, back, left, and right directions.
- a welding nut 10D is provided on the lower surface of the top plate 10A.
- female screw holes are formed by welding the welding nuts 10D to the lower surfaces of the four through holes 10C.
- the top plate 10A is formed with an engagement groove 10E extending in the front and back directions of the left front side of the concave bottom plate 10B.
- the engaging groove 10E is to be inserted with a hook member 13 constituting a mounting plate 12 of the rear camera device 11 described later, and linearly extends from the vicinity of the left side of the welding nut 10D at the left front position to the front end. Thereby, the engagement groove 10E restricts the movement of the mounting plate 12 to the rear side, and the rear camera device 11 can be removed only when the mounting plate 12 is moved to the front side.
- reference numeral 11 denotes a rear camera attached to the upper side of the counterweight 9.
- the rear camera device 11 provides the operator with a view behind the hydraulic shovel 1 which is a blind spot of the operator in the cab 6.
- the rear camera device 11 is configured to include a mounting plate 12, a camera housing 15, and a camera body 17 which will be described later.
- the mounting plate 12 is a mounting base of the rear camera device 11, and the mounting plate 12 is mounted facing the top plate 10A of the camera device mounting member 10 which forms a part of the upper surface 9C of the counterweight 9.
- the mounting plate 12 is formed as a substantially rectangular flat plate extending in the front and rear directions.
- the rear side of the mounting plate 12 extends forward from the rear end edge 12A located at the center of the rear end of the mounting plate 12 and from the rear end edge 12A so as to expand left and right. Left and right inclined edges 12B.
- the rear side portion of the mounting plate 12 is formed into a trapezoidal shape by the left and right inclined end edges 12B and the rear end edge 12A.
- the mounting plate 12 is provided with four bolt insertion holes 12C at intervals in the front and rear directions and the left and right directions in the range from the middle portion in the front and rear directions to the front side.
- the four bolt insertion holes 12C are holes through which later-described bolts 14 for attaching the mounting plate 12 to the welding nut 10D of the camera device mounting member 10 are inserted.
- Three bolt insertion holes 12D are formed in the rear side of the mounting plate 12 (on the rear surface 9B side of the counterweight 9).
- a bolt 16 described later for attaching the camera housing 15 to the mounting plate 12 is inserted through the three bolt insertion holes 12D.
- the mounting plate 12 is provided with a harness insertion hole 12E located between each bolt insertion hole 12C and each bolt insertion hole 12D for passing a harness (not shown) extending from the camera main body 17 described later. It is done.
- the mounting plate 12 has a rear lower surface 12F at a lower rear position at a trapezoidal portion formed by the rear end edge 12A and the inclined end edges 12B. As shown in FIG. 3, a gap 18 described later is formed in the rear lower surface 12F with the convex curved surface 9E of the counterweight 9. On the other hand, the below-mentioned cover member 19 which covers gap 18 is attached to back lower surface 12F.
- a hook member 13 is provided on the mounting plate 12 so as to protrude downward from the front side of the lower surface. That is, the hook member 13 is provided at a position corresponding to the engagement groove 10E of the camera device attachment member 10.
- the hook member 13 is formed by bending the front end side of a rectangular plate substantially at a right angle.
- the base end of the hook member 13 is fixed to the lower surface of the mounting plate 12 using welding means so that the retaining portion 13A formed by bending the tip end faces the left and right outwards.
- the hook member 13 is inserted into an engagement groove 10E provided on the top plate 10A of the camera device attachment member 10.
- the mounting plate 12 configured in this way is attached to the camera device mounting member 10
- the mounting plate 12 is disposed on the top plate 10A of the camera device mounting member 10 with its position shifted toward the front side.
- the mounting plate 12 is moved to the rear side (the rear surface 9B side of the counterweight 9), four four bolt insertion holes 12C Align with the welding nut 10D of In this state, the bolt 14 inserted into the bolt insertion hole 12C is screwed into the female screw hole of the welding nut 10D through the through hole 10C of the camera device mounting member 10.
- the mounting plate 12 can be mounted to the camera device mounting member 10.
- the camera housing 15 is provided on the rear side on the mounting plate 12, and the camera housing 15 is configured as a hollow case for housing a camera body 17 described later. As shown in FIG. 4, an opening 15A is formed on the rear side of the camera housing 15 at a narrow rear surface. The camera body 17 is exposed to the outside through the opening 15A.
- the camera housing 15 is attached to the mounting plate 12 by bolts 16 (shown in FIG. 6) inserted from the lower side into the bolt insertion holes 12D of the mounting plate 12.
- the camera body 17 is accommodated in a camera housing 15, and the camera body 17 is fixedly mounted, for example, in the camera housing 15.
- the camera body 17 is formed of, for example, a CCD camera, and can capture the outside through the opening 15A.
- a harness (not shown) of the camera body 17 is connected to the inside of the cab 6 via a harness insertion hole 12E provided in the mounting plate 12.
- the camera body 17 captures an area behind the counterweight 9 which is a blind spot for the operator in the cab 6, and an image captured by the camera body 17 is a monitor device (not shown) disposed in the cab 6 Can be displayed. Thereby, the operator can monitor (confirm) the rear of the counterweight 9 by the image displayed on the monitor device while operating the hydraulic shovel 1 in the cab 6.
- the rear camera device 11 shoots the range behind the counterweight 9.
- the rear camera device 11 is provided with the convex curved surface 9E of the counterweight 9 which is in the way when the rear camera device 11 projects to a position close to the rear surface 9B of the counterweight 9. It is necessary to make the camera body 17 largely protrude rearward on the counterweight 9. That is, as shown in FIG. 3, the rear camera device 11 is disposed in a state of projecting toward the convex curved surface 9E of the counterweight 9.
- the mounting plate 12 is extended rearward and pushed up to the upper side of the convex curved surface 9E, and the camera body 17 is positioned at the rear portion (upper surface of the rear lower surface 12F) of the mounting plate 12 Is provided in the camera housing 15.
- the convex curved surface 9E of the counterweight 9 and the rear portion of the mounting plate 12 of the rear camera device 11 are A gap 18 is formed between the lower surface 12F and the convex curved surface 9E.
- the gap 18 is an inner range of a two-dot chain line connecting the rear end edge 12A of the mounting plate 12 and the upper end 9B1 of the rear surface 9B of the counterweight 9.
- the gap 18 opens in a substantially V shape on the rear surface 9B side of the counterweight 9 when viewed from the side.
- the gap 18 eliminates the sense of unity between the counterweight 9 and the rear camera device 11 and exposes the bolt 16 fixing the camera housing 15 (camera main body 17) to the mounting plate 12 to the outside in addition to worsening the appearance. There is a risk of Therefore, a cover member 19 described later is provided in the gap 18.
- the reference numeral 19 denotes a cover member provided between the convex curved surface 9E of the counterweight 9 and the rear lower surface 12F of the mounting plate 12 of the rear camera device 11.
- the cover member 19 covers the gap 18 formed between the cover plate 19 and the mounting plate 12 by the convex curved surface 9E.
- the cover member 19 is formed so as to surround the rear end side of the mounting plate 12 by bending one plate at two places in the length direction.
- the cover member 19 extends in the left and right directions along the rear end edge 12A of the mounting plate 12 and has a rectangular rear plate portion 19A attached to the rear end edge 12A, and the mounting plate 12 from the rear plate portion 19A.
- the left and right inclined plate portions 19B extend toward the front side so as to expand in the left and right directions along the inclined edge 12B.
- the cover member 19 is attached to the rear lower surface 12F of the mounting plate 12 using, for example, welding means. Specifically, in the cover member 19, the rear plate portion 19A is welded to the rear end edge 12A of the mounting plate 12, and the left and right inclined plate portions 19B are formed on the left and right inclined edges 12B of the mounting plate 12. Welded.
- the left and right inclined plate portions 19B of the cover member 19 are formed so that the size in the upward and downward directions toward the rear plate portion 19A becomes larger to correspond to the convex curved surface 9E of the counterweight 9 It is done. That is, the left and right inclined plate portions 19B widen upward and downward at a position near the rear plate portion 19A, and narrow in the upper and lower directions at a position away from the rear plate portion 19A. It is formed. As a result, each of the inclined plate portions 19B having a substantially triangular shape can be fitted into the substantially V-shaped gap 18, and the gap 18 can be reliably covered.
- the lower end edge of the inclined plate portion 19B opposite to the convex curved surface 9E becomes a concave arc-shaped edge 19B1 (hereinafter referred to as concave edge 19B1) so as to correspond to the convex curved surface 9E. ing.
- concave edge 19B1 can be brought into close contact with the convex curved surface 9E of the counterweight 9, and the gap 18 between the cover member 19 and the counterweight 9 can be effectively covered.
- the lower end edge of the rear plate portion 19A is a linear end edge 19A1 linearly extending in the horizontal direction.
- the edged member 20 is provided on the cover member 19, and the edged member 20 is formed as a string-like body having a U-shaped cross-sectional shape using an elastic rubber material and a resin material.
- the rim member 20 sandwiches the cover 19 in a U-shape with the linear end 19A1 of the rear plate 19A and the concave end 19B1 of the left and right inclined plate 19B facing the convex curved surface 9E. Are attached so as to cover these.
- the bordering member 20 when the bordering member 20 abuts on the convex curved surface 9E of the counterweight 9, it can be elastically deformed in accordance with the surface shape of the convex curved surface 9E. Thereby, the trimming member 20 can reliably fill the gap between the cover member 19 and the counterweight 9.
- the edge member 20 made of an elastic material can cause the cover member 19 to elastically contact the counterweight 9, so that noise and damage due to a collision can be prevented.
- the hydraulic excavator 1 according to the present embodiment has the above-described configuration. Next, the operation of the hydraulic excavator 1 will be described.
- the operator gets in the cab 6 and sits in the driver's seat.
- the lever for traveling in this state the lower traveling body 2 can be driven to move the hydraulic shovel 1 forward or backward.
- the operator can operate the working device 4 and the like to operate the excavation device by operating the operation lever.
- the rear camera device 11 attached to the counterweight 9 captures an image of the rear of the counterweight 9 which is a blind spot for the operator in the cab 6.
- An image captured by the rear camera device 11 is displayed on a monitor device disposed in the cab 6.
- the operator operating the hydraulic shovel 1 in the cab 6 can check the back of the counterweight 9 by the image displayed on the monitor device, and can enhance the safety during the digging operation.
- the rear camera device 11 is disposed in a state of being projected to the rear side toward the convex curved surface 9E of the counterweight 9. For this reason, it is possible to avoid the convex curved surface 9E of the counterweight 9 which interferes when the lower camera device 11 projects the lower side, and the imaging range can be extended downward to a position near the counterweight 9 . This can further enhance the safety of the digging operation and the like.
- the gap 18 is formed between the rear curved camera device 11 and the mounting plate 12 of the rear camera device 11 by the convex curved surface 9E of the counterweight 9 in a state where the rear camera device 11 largely protrudes rearward. Therefore, the appearance of the rear camera device 11 is deteriorated, and the bolt 16 fixing the camera housing 15 to the mounting plate 12 may be exposed to the outside.
- the rear camera device 11 is on the top plate 10A of the camera device mounting member 10 located on the upper surface 9C of the counterweight 9, and faces the convex curved surface 9E of the counterweight 9. It arranges in the state where it was projected. Therefore, the rear camera device 11 can capture the situation behind the vehicle body to a position near the rear of the vehicle body (the rear surface 9B of the counterweight 9) without being blocked by the convex curved surface 9E of the counterweight 9. Provides a wide rear view to the operator of
- the cover member 19 is provided between the convex curved surface 9E of the counterweight 9 and the rear lower surface 12F of the mounting plate 12 of the rear camera device 11. Thereby, the cover member 19 can cover the gap 18 formed by projecting the rear camera device 11 toward the convex curved surface 9E.
- the gap 18 formed between the rear curved camera device 11 and the convex curved surface 9E is covered. It can be covered by a member 19.
- the counterweight 9 and the rear camera device 11 can be integrally provided so as to be continuous by eliminating the gap 18 therebetween, the appearance on the appearance can be improved.
- the cover member 19 is configured to be attached to the rear lower surface 12F of the mounting plate 12 serving as the base of the rear camera device 11. Therefore, the cover member 19 can be easily attached to the mounting plate 12 using welding means. Furthermore, since the cover member 19 provided on the rear lower surface 12F of the mounting plate 12 can cover the bolts 16 fixing the camera housing 15 to the mounting plate 12, the rear camera device 11 is disassembled and parts are removed. It can prevent the situation that can be stolen.
- An accommodation recess 9G is provided on the upper surface 9C of the counterweight 9 at a central portion in the left and right directions.
- the camera device mounting member 10 mounted on the upper surface 9C of the counterweight 9 covers the housing recess 9G and the top plate 10A mounted on the upper surface 9C, and is mounted on the lower surface of the top plate 10A and fits in the housing recess 9G. It comprises with concave bottom plate 10B.
- a welding nut 10D having a female screw hole at a position facing the concave bottom plate 10B is provided, while on the mounting plate 12 of the rear camera device 11, the welding nut 10D is The bolt insertion holes 12C are provided at corresponding positions.
- the top plate 10A is mounted on the upper surface 9C of the counterweight 9 with the concave bottom plate 10B of the camera device mounting member 10 housed in the housing recess 9G.
- the mounting plate 12 of the rear camera device 11 is attached to the top plate 10A of the camera device mounting member 10 using a bolt 14.
- the rear camera device 11 can be attached to the upper surface 9C of the counterweight 9 at the center in the left and right directions.
- the cover member 19 is provided with a rim member 20 made of an elastic material over the linear edge 19A1 of the rear plate portion 19A and the concave edge 19B1 of the left and right inclined plate portions 19B facing the convex curved surface 9E. It is provided and has composition which covers each edge 19A1 and 19B1. Thereby, the cover member 19 can be elastically brought into close contact with the convex curved surface 9E via the trimming member 20. As a result, the gap between the cover member 19 and the counterweight 9 can be eliminated to improve the crime prevention performance, and the appearance can be improved. Moreover, the edge member 20 made of an elastic material can prevent the cover member 19 from colliding with the counterweight 9 to generate noise or damage to the cover member 19 and the counterweight 9, and thus the life of these members can be prevented. Can be extended.
- the cover member 19 is a rear plate portion 19A for closing the gap between the rear end of the rear lower surface 12F of the mounting plate 12 constituting the rear camera device 11 and the counterweight 9, and the left side of the rear plate portion 19A.
- the left and right inclined plate portions 19B extend from the right ends along the convex curved surface 9E of the counterweight 9 to the front side and close the left and right gaps between the counterweight 9 and the left and right.
- the gap 18 formed between the convex curved surface 9E of the counterweight 9 and the rear lower surface 12F of the mounting plate 12 can be covered by the rear plate portion 19A at the rear side, and the left and right sides are left , Can be covered by the right inclined plate portion 19B.
- the lower edge 19B1 of the left and right inclined plate portions 19B constituting the cover member 19 is formed in a concave arc shape along the convex curved surface 9E of the counterweight 9. Accordingly, the concave end edge 19B1 having the concave arc shape can be brought into close contact with the convex curved surface 9E, and the gap between the cover member 19 and the counterweight 9 can be effectively covered without any gap. As a result, the crime prevention performance by the cover member 19 can be improved, and the appearance can be improved.
- the cover member 19 is provided separately from the mounting plate 12 of the rear camera device 11 and described as an example in which the cover member 19 is fixed to the mounting plate 12 using welding means.
- the present invention is not limited to this.
- the mounting plate 12 and the cover member 19 may be integrally formed using a press molding machine.
- a bending margin may be provided on the rear side of the mounting plate 12 and the cover margin 19 may be formed by bending the bending margin.
- the cover member 19 is formed in a trapezoidal shape by bending one plate at two places in the length direction.
- the present invention is not limited to this, and for example, the cover member 19 may have another shape such as a U shape or a V shape.
- the engagement groove 10E is provided on the top plate 10A of the camera device attachment member 10 on the counterweight 9 side
- the hook member 13 is provided on the attachment plate 12 of the rear camera device 11, and the engagement groove 10E is provided.
- the hook member 13 is engaged to have a function to prevent theft.
- the present invention is not limited to this.
- the rear camera device 11 may be attached to the upper surface 9C of the counterweight 9 using a bolt without providing the antitheft function.
- the rear camera device 11 may be attached to the counterweight 9 using a bolt whose head has a special shape.
- the crawler type hydraulic shovel 1 is described as an example of the construction machine.
- the present invention is not limited to this, and may be a construction machine provided with a counterweight, and can be widely applied to other construction machines including, for example, a wheel type hydraulic shovel, a hydraulic crane, and a wheel loader.
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- Engineering & Computer Science (AREA)
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- Component Parts Of Construction Machinery (AREA)
Abstract
Description
2 下部走行体(車体)
3 上部旋回体(車体)
4 作業装置
9 カウンタウエイト
9B 後面
9B1 上端部
9C 上面
9C1 後端部
9E 凸状湾曲面
10 カメラ装置取付部材
10A 天板
10B 凹状底板
10C 貫通孔
10D 溶接ナット
11 後方カメラ装置
12 取付板
12A 後端縁
12B 傾斜端縁
12C,12D ボルト挿通孔
12F 後部下面(後部下側位置)
15 カメラハウジング
17 カメラ本体
18 隙間
19 カバー部材
19A 後板部
19A1 直線状端縁
19B 傾斜板部
19B1 凹状端縁
20 縁取り部材
A 凸状湾曲面の範囲(カウンタウエイトの後面と上面との境界位置) 1 Hydraulic excavator (construction machine)
2 Lower body (body)
3 Upper revolving body (car body)
DESCRIPTION OF
DESCRIPTION OF
Claims (6)
- 自走可能な車体(2,3)と、該車体(2,3)の前側に設けられた作業装置(4)と、該作業装置(4)との重量バランスをとるために前記車体(2,3)の後側に設けられたカウンタウエイト(9)と、後方の視界を得るために前記カウンタウエイト(9)の上面(9C)に取付けられた後方カメラ装置(11)とを備えてなる建設機械において、
前記カウンタウエイト(9)は、後面(9B)と上面(9C)との境界位置が凸円弧状に湾曲した凸状湾曲面(9E)となったブロック体として形成し、
前記後方カメラ装置(11)は、前記カウンタウエイト(9)の上面(9C)であって前記カウンタウエイト(9)の凸状湾曲面(9E)に向けて突出した状態で配置し、
前記カウンタウエイト(9)の凸状湾曲面(9E)と前記後方カメラ装置(11)の後部下側位置(12F)との間には、前記凸状湾曲面(9E)によって形成された隙間(18)を覆うカバー部材(19)を設ける構成としたことを特徴とする建設機械。 In order to balance the weight of the self-propelled vehicle body (2, 3), the working device (4) provided on the front side of the vehicle body (2, 3), and the working device (4) , 3), and a rear camera device (11) mounted on the upper surface (9C) of the counterweight (9) to obtain a rear view. In construction machinery,
The counterweight (9) is formed as a block body having a convex curved surface (9E) in which the boundary position between the rear surface (9B) and the upper surface (9C) is curved in a convex arc shape.
The rear camera device (11) is disposed on the upper surface (9C) of the counterweight (9) and protrudes toward the convex curved surface (9E) of the counterweight (9);
A gap formed by the convex curved surface (9E) between the convex curved surface (9E) of the counterweight (9) and the rear lower position (12F) of the rear camera device (11) 18) A construction machine provided with a cover member (19) for covering the same. - 前記後方カメラ装置(11)は、前,後方向に延び前記カウンタウエイト(9)の上面(9C)に取付けられる取付板(12)と、該取付板(12)上の後側に設けられたカメラハウジング(15)と、該カメラハウジング(15)内に収容されたカメラ本体(17)とにより構成し、
前記カバー部材(19)は、前記取付板(12)の後部下側位置(12F)に取付ける構成としてなる請求項1に記載の建設機械。 The rear camera device (11) is provided on a mounting plate (12) extending in the front and rear directions and mounted on the upper surface (9C) of the counterweight (9), and the rear side on the mounting plate (12) A camera housing (15) and a camera body (17) accommodated in the camera housing (15);
The construction machine according to claim 1, wherein the cover member (19) is attached to a lower rear position (12F) of the mounting plate (12). - 前記カウンタウエイト(9)の上面(9C)には、左,右方向の中央部に位置して収容凹部(9G)を設け、
前記カウンタウエイト(9)の上面(9C)には、該収容凹部(9G)を覆うと共に前記上面(9C)に取付けられる天板(10A)と、該天板(10A)の下面に取付けられ前記収容凹部(9G)に収まる凹状底板(10B)とからなるカメラ装置取付部材(10)を設け、
前記天板(10A)の下面には、前記凹状底板(10B)と対向する位置にめねじ孔を有する溶接ナット(10D)を設け、
一方、前記後方カメラ装置(11)の前記取付板(12)には、前記溶接ナット(10D)に対応する位置にボルト挿通孔(12C)を設け、
前記取付板(12)は、ボルト(14)を用いて該ボルト挿通孔(12C)を介して前記溶接ナット(10D)に取付ける構成としてなる請求項2に記載の建設機械。 The upper surface (9C) of the counterweight (9) is provided with a housing recess (9G) located at the center in the left and right directions,
The upper surface (9C) of the counterweight (9) covers the accommodation recess (9G) and is attached to the top plate (10A) attached to the upper surface (9C), and the lower surface of the top plate (10A) Providing a camera device mounting member (10) comprising a concave bottom plate (10B) that fits in the housing recess (9G);
The bottom surface of the top plate (10A) is provided with a welding nut (10D) having a female screw hole at a position facing the concave bottom plate (10B),
On the other hand, the mounting plate (12) of the rear camera device (11) is provided with a bolt insertion hole (12C) at a position corresponding to the welding nut (10D),
The construction machine according to claim 2, wherein the mounting plate (12) is attached to the welding nut (10D) via the bolt insertion hole (12C) using a bolt (14). - 前記カバー部材(19)には、前記カウンタウエイト(9)の凸状湾曲面(9E)と対向する下側の端縁(19A1,19B1)を覆うように弾性材料からなる縁取り部材(20)を設ける構成としてなる請求項1に記載の建設機械。 The cover member (19) is provided with a rim member (20) made of an elastic material so as to cover the lower end edge (19A1, 19B1) opposed to the convex curved surface (9E) of the counterweight (9). The construction machine according to claim 1, wherein the construction machine is provided.
- 前記カバー部材(19)は、前記後方カメラ装置(11)の後部下側位置(12F)の後端と前記カウンタウエイト(9)との間の隙間を閉塞する後板部(19A)と、該後板部(19A)の左,右両端から前記カウンタウエイト(9)の凸状湾曲面(9E)に沿って前側に延び前記カウンタウエイト(9)との間の左,右の隙間を閉塞する左,右の傾斜板部(19B)とにより形成してなる請求項1に記載の建設機械。 The cover member (19) is a rear plate portion (19A) closing a gap between the rear end of the rear lower side position (12F) of the rear camera device (11) and the counterweight (9); Extending forward from the left and right ends of the rear plate portion (19A) along the convex curved surface (9E) of the counterweight (9) and closing the left and right gaps with the counterweight (9) The construction machine according to claim 1, which is formed by left and right inclined plate portions (19B).
- 前記カバー部材(19)の前記左,右の傾斜板部(19B)の下側の端縁(19B1)は、前記カウンタウエイト(9)の凸状湾曲面(9E)に沿う凹円弧状に形成してなる請求項5に記載の建設機械。 The lower edge (19B1) of the left and right inclined plate portions (19B) of the cover member (19) is formed in a concave arc shape along the convex curved surface (9E) of the counterweight (9) The construction machine according to claim 5, wherein
Priority Applications (4)
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US14/437,642 US20150259888A1 (en) | 2012-10-23 | 2013-10-18 | Construction Machine |
CN201380054902.7A CN104736775A (en) | 2012-10-23 | 2013-10-18 | Construction machinery |
EP13849636.9A EP2913444A4 (en) | 2012-10-23 | 2013-10-18 | Construction machinery |
JP2014543269A JP6004455B2 (en) | 2012-10-23 | 2013-10-18 | Construction machinery |
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JP2012-234009 | 2012-10-23 | ||
JP2012234009 | 2012-10-23 |
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PCT/JP2013/078318 WO2014065211A1 (en) | 2012-10-23 | 2013-10-18 | Construction machinery |
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US (1) | US20150259888A1 (en) |
EP (1) | EP2913444A4 (en) |
JP (1) | JP6004455B2 (en) |
CN (1) | CN104736775A (en) |
WO (1) | WO2014065211A1 (en) |
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JP2021004491A (en) * | 2019-06-26 | 2021-01-14 | 株式会社クボタ | Work machine |
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BR102013033526B1 (en) * | 2013-12-26 | 2021-07-27 | Dynapac Do Brasil Indústria E Comércio De Máquinas Ltda. | MACHINE WEIGHT ADJUSTMENT SYSTEM |
CN114715804B (en) * | 2022-03-31 | 2023-05-05 | 三一海洋重工有限公司 | Detection device and engineering machinery |
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2013
- 2013-10-18 CN CN201380054902.7A patent/CN104736775A/en active Pending
- 2013-10-18 JP JP2014543269A patent/JP6004455B2/en active Active
- 2013-10-18 WO PCT/JP2013/078318 patent/WO2014065211A1/en active Application Filing
- 2013-10-18 US US14/437,642 patent/US20150259888A1/en not_active Abandoned
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JP4273336B2 (en) * | 2004-07-30 | 2009-06-03 | 日立建機株式会社 | Construction machine surveillance camera system |
JP2008231726A (en) | 2007-03-19 | 2008-10-02 | Hitachi Constr Mach Co Ltd | Structure for preventing theft of monitoring camera of construction machinery |
JP2011042979A (en) | 2009-08-21 | 2011-03-03 | Hitachi Constr Mach Co Ltd | Rear camera device |
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JP2021004491A (en) * | 2019-06-26 | 2021-01-14 | 株式会社クボタ | Work machine |
JP7191784B2 (en) | 2019-06-26 | 2022-12-19 | 株式会社クボタ | work machine |
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JP6004455B2 (en) | 2016-10-05 |
EP2913444A1 (en) | 2015-09-02 |
US20150259888A1 (en) | 2015-09-17 |
EP2913444A4 (en) | 2016-07-27 |
CN104736775A (en) | 2015-06-24 |
JPWO2014065211A1 (en) | 2016-09-08 |
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