EP1091049A2 - Hydraulischer bagger - Google Patents

Hydraulischer bagger Download PDF

Info

Publication number
EP1091049A2
EP1091049A2 EP00121772A EP00121772A EP1091049A2 EP 1091049 A2 EP1091049 A2 EP 1091049A2 EP 00121772 A EP00121772 A EP 00121772A EP 00121772 A EP00121772 A EP 00121772A EP 1091049 A2 EP1091049 A2 EP 1091049A2
Authority
EP
European Patent Office
Prior art keywords
boom
roof supports
cabin
roof
work attachment
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
Application number
EP00121772A
Other languages
English (en)
French (fr)
Other versions
EP1091049B1 (de
EP1091049A3 (de
Inventor
Toshiharu Shinko Engineering Co. Ltd. Matsunami
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kobelco Construction Machinery Co Ltd
Original Assignee
Kobelco Construction Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kobelco Construction Machinery Co Ltd filed Critical Kobelco Construction Machinery Co Ltd
Publication of EP1091049A2 publication Critical patent/EP1091049A2/de
Publication of EP1091049A3 publication Critical patent/EP1091049A3/de
Application granted granted Critical
Publication of EP1091049B1 publication Critical patent/EP1091049B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • 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
    • E02F9/16—Cabins, platforms, or the like, for drivers
    • E02F9/163—Structures to protect drivers, e.g. cabins, doors for cabins; Falling object protection structure [FOPS]; Roll over protection structure [ROPS]
    • 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
    • E02F3/325—Backhoes of the miniature type
    • 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
    • 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
    • E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
    • 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
    • E02F9/20—Drives; Control devices
    • E02F9/2025—Particular purposes of control systems not otherwise provided for
    • E02F9/2033—Limiting the movement of frames or implements, e.g. to avoid collision between implements and the cabin

Definitions

  • the present invention relates to a compact hydraulic excavator.
  • an upper rotating body 2 is mounted on a crawler type traveling body 1 rotatably about a longitudinal axis, as shown in FIGS. 4 and 5.
  • a cabin 4 is provided in a central portion of the upper surface of the upper rotating body 2.
  • the cabin 4 is provided downward of a seat with an engine and other machineries (not shown) and on both left and right sides with lever type operating devices 5, 5.
  • a handrail 6 is mounted forward of the cabin 4.
  • a work attachment 7 is mounted directly forward of the handrail 6.
  • the work attachment 7 is provided with a rising and falling boom 8.
  • an arm 9 is mounted at the extreme end of the boom 8
  • a bucket 10 is mounted at the extreme end of the arm 9.
  • Reference numeral 11 denotes a boom rising and falling cylinder for rising and falling the boom 8.
  • Numeral 12 denotes an arm cylinder for operating the arm 9.
  • Numeral 13 denotes a bucket cylinder for operating the bucket 10.
  • the boom 8 is mounted to be swung in a lateral direction about a longitudinal axis so that groove excavation work can be done easily.
  • the boom 8 is driven by a swing cylinder 14.
  • a lateral rail 6b is mounted horizontally and formed in an inverted U shape between longitudinal rails 6a, 6a on both left and right sides.
  • the handrail 6 is used as a railing for supporting the body by hands when an operator leans forward to confirm the excavating part or when the operator gets on and off.
  • the lateral rail 6b of the handrail 6 interferes with the boom 8 in a stood upright state of the boom 8, as shown by the phantom outline in FIG. 4. Therefore, the maximum upright angle of the boom 8 is limited to an angle smaller than an original angle of the excavator (hereinafter referred to as a specification angle). This poses a problem that the minimum rotating radius R1 of the upper construction body including the work attachment 7 increases.
  • the whole height of the handrail 6 be set to be low so as not to interfere with the boom 8. However, if so, the longitudinal rails 6a, 6a particularly often used are lowered, and the function as an original railing materially lowers.
  • the compact excavator of this kind is normally not provided with a roof.
  • the hydraulic excavator comprises the following constitution. That is, it comprises a excavator body (a base machine) provided with a traveling body, a cabin provided on the upper surface of the excavator body, and a work attachment mounted forward of the excavator body, the work attachment comprising a boom that can be risen and fallen and can be swung on left and right about a longitudinal axis, roof supports provided forward of the cabin and on both sides at the rear of the boom, in which the boom is arranged so as not to interfere with the roof supports in a whole rising and falling range over a whole swing operating range, and so as to be projected rearward of the roof supports in a maximum stand-up state, and a roof provided above the roof supports to cover the cabin from a top of the cabin.
  • the roof supports is used to be as railing too.
  • the roof supports on which a roof is mounted serve as a longitudinal railing also and are arranged so as not to interfere with the boom in the whole rising and falling range over the whole swing operating range of the boom, thus taking effect as follows:
  • the hydraulic excavator according to the present invention has the following constitution: a lateral railing and connecting bar provided at an arrangement not to interfere with the boom between the roof supports.
  • Longitudinal railings and left and right front roof supports 15, 15, and left and right rear roof supports 16, 16 are stood upright on both left and right sides forward of a cabin 4 in an upper rotating body 2 of a excavator body 3, and on both left and right sides rearward of the cabin 4, respectively.
  • a roof 17 for covering the cabin 4 from the top to protect an operator from falling things are mounted over the upper ends of the supports 15, 15, 16, 16.
  • a boom 8 constituting a work attachment 7 swings on left and right in the center forward of the upper rotating body 2.
  • the both roof supports 15, 15 are mounted at an arrangement not to interfere with the boom 8 in the whole rising and falling range at any swing position of the boom 8.
  • a lateral railing and connecting bar 18 is mounted horizontally between both the front roof supports 15, 15.
  • a handrail serving as a railing when one peeps into a forward excavating part and gets in and out is constituted by both the front roof supports 15, 15.
  • the connecting bar 18 is mounted at a height position (a position closer to an intermediate lower part) not to interfere with the boom 8 in the whole swing range and the whole rising and falling range of the boom 8.
  • the minimum rotating radius R2 of the upper construction body including the work attachment 7 is reduced as compared with the minimum rotating radius R1 of the conventional excavator shown in FIGS. 4 and 5. Because the boom 8 is stood upright to a specification angle in a state not to interfere with the handrail (front roof supports 15, 15 and connecting bar 18) and being projected on the maximum and rearward (cabin 4 side) of both the roof supports 15, 15.
  • both the roof supports 15, 15 can be used as a longitudinal railing also which is high in necessity particularly at the time of work and at the time of getting on and off, the railing function is not possibly lowered as in the conventional case where the height of the whole handrail is lowered. Further, it is not necessary to secure separate spaces for the roof supports and the longitudinal railing. Because of this, both of them can be installed naturally in the minimum space.
  • a lateral railing and connecting bar 8 is provided at an arrangement not to interfere with the boom 8 between both the roof supports 15, 15. Because of this, the railing function can be strengthened, and the strength of the roof supports 15, 15 can be increased.
  • the connecting bar 18 is provided between both the roof supports 15, 15 as in the above-described embodiment in order to enhance the railing function and the strength of the front roof supports 15, 15.
  • the connecting bar 18 need not be provided, depending on the necessity.
  • a excavator body a cabin provided on the upper surface, a work attachment mounted on the front part of said excavator body, and railings and roof supports forward of the cabin and rearward of a boom constituting the work attachment, the boom being arranged not to interfere with the roof supports in the whole rising and falling operating range over the whole swing operating range.
  • the maximum stand-up angle of he boom is enlarged to a specification angle, and the minimum rotating radius of the upper construction body including the work attachment is reduced to secure necessary railing function, enabling installation of a roof naturally in a minimum space.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Shovels (AREA)
  • Earth Drilling (AREA)
EP00121772A 1999-10-07 2000-10-05 Hydraulischer Bagger Expired - Lifetime EP1091049B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP28703899A JP3638831B2 (ja) 1999-10-07 1999-10-07 油圧ショベル
JP28703899 1999-10-07

Publications (3)

Publication Number Publication Date
EP1091049A2 true EP1091049A2 (de) 2001-04-11
EP1091049A3 EP1091049A3 (de) 2002-04-03
EP1091049B1 EP1091049B1 (de) 2004-01-14

Family

ID=17712252

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121772A Expired - Lifetime EP1091049B1 (de) 1999-10-07 2000-10-05 Hydraulischer Bagger

Country Status (5)

Country Link
EP (1) EP1091049B1 (de)
JP (1) JP3638831B2 (de)
KR (1) KR100406854B1 (de)
AT (1) ATE257875T1 (de)
DE (1) DE60007703T2 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130149095A1 (en) * 2010-05-31 2013-06-13 Hudson Bay Holding B.V. Mobile apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4742195B2 (ja) * 2004-03-22 2011-08-10 ヤンマー建機株式会社 バックホー

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963131A (en) * 1975-01-06 1976-06-15 Hydra-Mac, Inc. Front-end skid steer loader
GB2184419A (en) * 1985-12-23 1987-06-24 Kubota Ltd Complete swivel type backhoe vehicle
US4728251A (en) * 1986-02-28 1988-03-01 Kubota, Ltd. Complete swivel type backhoe vehicle
JPH05125743A (ja) * 1991-10-31 1993-05-21 Yanmar Diesel Engine Co Ltd 旋回作業車
JPH06212667A (ja) * 1993-01-20 1994-08-02 Yanmar Diesel Engine Co Ltd 旋回型掘削機

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170320U (de) * 1981-04-21 1982-10-27
JPH054414Y2 (de) * 1987-01-22 1993-02-03
JPH0635824Y2 (ja) * 1988-07-20 1994-09-21 セイレイ工業株式会社 移動作業車におけるキャノピーの支持装置
JP2668987B2 (ja) * 1988-09-30 1997-10-27 松下電器産業株式会社 データ処理装置
JP2001090116A (ja) * 1999-09-22 2001-04-03 Hitachi Constr Mach Co Ltd 旋回式建設機械

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3963131A (en) * 1975-01-06 1976-06-15 Hydra-Mac, Inc. Front-end skid steer loader
GB2184419A (en) * 1985-12-23 1987-06-24 Kubota Ltd Complete swivel type backhoe vehicle
US4728251A (en) * 1986-02-28 1988-03-01 Kubota, Ltd. Complete swivel type backhoe vehicle
JPH05125743A (ja) * 1991-10-31 1993-05-21 Yanmar Diesel Engine Co Ltd 旋回作業車
JPH06212667A (ja) * 1993-01-20 1994-08-02 Yanmar Diesel Engine Co Ltd 旋回型掘削機

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 500 (M-1477), 9 September 1993 (1993-09-09) -& JP 05 125743 A (YANMAR DIESEL ENGINE CO LTD;OTHERS: 01), 21 May 1993 (1993-05-21) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 579 (M-1698), 7 November 1994 (1994-11-07) -& JP 06 212667 A (YANMAR DIESEL ENGINE CO LTD;OTHERS: 01), 2 August 1994 (1994-08-02) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130149095A1 (en) * 2010-05-31 2013-06-13 Hudson Bay Holding B.V. Mobile apparatus
US9139980B2 (en) * 2010-05-31 2015-09-22 Hudson Bay Holding B.V. Mobile apparatus

Also Published As

Publication number Publication date
DE60007703T2 (de) 2004-12-02
EP1091049B1 (de) 2004-01-14
KR100406854B1 (ko) 2003-11-21
KR20010039982A (ko) 2001-05-15
EP1091049A3 (de) 2002-04-03
DE60007703D1 (de) 2004-02-19
JP3638831B2 (ja) 2005-04-13
ATE257875T1 (de) 2004-01-15
JP2001107389A (ja) 2001-04-17

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