JP2008279930A - Opening/closing cover structure in construction machine - Google Patents

Opening/closing cover structure in construction machine Download PDF

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JP2008279930A
JP2008279930A JP2007126817A JP2007126817A JP2008279930A JP 2008279930 A JP2008279930 A JP 2008279930A JP 2007126817 A JP2007126817 A JP 2007126817A JP 2007126817 A JP2007126817 A JP 2007126817A JP 2008279930 A JP2008279930 A JP 2008279930A
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Prior art keywords
opening
closing cover
cover
surface portion
storage chamber
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Japanese (ja)
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Kazuhiko Aihara
和彦 相原
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Caterpillar Japan Ltd
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Caterpillar Japan Ltd
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Priority to JP2007126817A priority Critical patent/JP2008279930A/en
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    • 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
    • E02F9/0833—Improving access, e.g. for maintenance, steps for improving driver's access, handrails
    • 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

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  • 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)
  • Superstructure Of Vehicle (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To easily perform maintenance work of equipment, devices and tanks stored in a storage chamber in a construction machine in which a drive chamber is provided at a left side of a working device mounting part mounted with a base end part of a front working device and the storage chamber is provided at a right side. <P>SOLUTION: An opening/closing cover 13 openably/closably covering the storage chamber 9 is constituted such that a front surface part 13A, an upper surface part 13B and a right surface part 13C covering a front side, an upper side and a right side of the storage chamber 9 are integrally formed and openably/closably pivoted making a left side edge part of the upper surface part 13B as a fulcrum. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、油圧ショベル等の建設機械における開閉カバー構造の技術分野に属するものである。   The present invention belongs to the technical field of an open / close cover structure in a construction machine such as a hydraulic excavator.

一般に、油圧ショベル等の建設機械のなかには、架台フレームの左右方向中間部に、フロント作業装置の基端部が取付支持される作業装置取付部を設けると共に、該作業装置取付部の左右何れか一方（一般的に左方）に運転室を設け、左右何れか他方（一般的に右方）に、バッテリ、コントロールバルブ等の各種機器装置類や作動油タンク等のタンク類が収納される収納室を設けたものがあり、例えば、小旋回型油圧ショベルが代表例として挙げられる。
ところで、前記収納室は、一般的に、収納室に収納された機器装置等を作業中に飛散する土砂等から保護するためにカバーで覆われている（ 例えば、特許文献１、２参照。）。この場合、収納室内の機器装置等のメンテナンス作業を容易に行うことができるように、カバーを開閉揺動自在に構成することが望ましく、そこで、従来、カバーを、架台フレームの前側を支点として開閉揺動するように構成したものが知られている（特許文献３参照。）。
特開平１１−３３６１２４号公報 特開２０００−２９１０５８号公報 特開２００５−３４４３３２号公報 Generally, in a construction machine such as a hydraulic excavator, a working device mounting portion on which a base end portion of a front working device is mounted and supported is provided in a middle portion in the left-right direction of a gantry frame, and either the left or right of the working device mounting portion is provided. A cab is provided on the left (generally on the left), and a storage room on the left or right (generally on the right) for storing various devices such as batteries and control valves, and tanks such as hydraulic oil tanks For example, a small turning type hydraulic excavator is given as a typical example.
By the way, the storage chamber is generally covered with a cover in order to protect the equipment and the like stored in the storage chamber from earth and sand scattered during work (see, for example, Patent Documents 1 and 2). . In this case, it is desirable that the cover be configured to be openable and swayable so that maintenance work can be easily performed on the equipment in the storage room. The one configured to swing is known (see Patent Document 3).
JP-A-11-336124 Japanese Patent Laid-Open No. 2000-291058 JP 2005-344332 A

しかるに、前記特許文献３のカバーは、前述したように、架台フレームの前側を支点として開閉揺動するように構成されていて、開いたときにカバー全体が架台フレームから前方に張出した状態となる。このため、機体前方側から収納室内の機器装置にアクセスしづらい許りか、張出したカバーに作業員等がぶつかり易く、作業性に劣るという問題がある。さらに、小旋回型の油圧ショベルでは、旋回半径をなるべく小さくするために旋回フレームの左右両縁は円弧状に形成されており、このため、カバーの前端側の左右幅は狭くなっているが、該左右幅の狭い前端側を支点として開閉揺動するため、該開閉揺動を支持するヒンジ部材を一つしか設けることができず、たとえ複数設けたとしても互いに近接した状態でしか設けることができないことになって、ヒンジ部材に無理な負荷がかかりやすく、特に、収納室を大きく開くことができるようにカバーを大きく設計したような場合には、ヒンジ部材にかかる負荷が更に大きくなって、早期に損傷しやすいという問題があり、ここに本発明が解決しようとする課題がある。   However, as described above, the cover of Patent Document 3 is configured to swing open and close with the front side of the gantry frame as a fulcrum, and when the cover is opened, the entire cover protrudes forward from the gantry frame. . For this reason, there is a problem that it is difficult to access the device in the storage room from the front side of the machine body, or that workers or the like are likely to collide with the extended cover, resulting in poor workability. Further, in the small turning type hydraulic excavator, the left and right edges of the turning frame are formed in an arc shape in order to make the turning radius as small as possible, and therefore the left and right width on the front end side of the cover is narrowed. Since the front-end side with the narrow left and right width is opened and closed and swinged, only one hinge member for supporting the opening and closing swing can be provided, and even if a plurality of hinge members are provided, they can be provided only in a state close to each other. As a result, it is difficult to apply an excessive load to the hinge member, and particularly when the cover is designed to be large so that the storage chamber can be opened widely, the load applied to the hinge member is further increased. There is a problem of being easily damaged at an early stage, and there is a problem to be solved by the present invention.

本発明は、上記の如き実情に鑑みこれらの課題を解決することを目的として創作されたものであって、請求項１の発明は、架台フレームの左右方向中間部に、フロント作業装置の基端部が取付支持される作業装置取付部を設けると共に、該作業装置取付部の左右何れか一方に運転室を設け、左右何れか他方に各種機器装置類やタンク類が収納される収納室を設けてなる建設機械において、前記収納室を開閉自在な開閉カバーを覆うにあたり、該開閉カバーは、収納室の前側、上側、反作業装置取付部側を覆う前面部、上面部、反作業装置取付部側面部が一体形成されたものとすると共に、上面部の作業装置取付部側縁部を支点として開閉揺動する構成であることを特徴とする建設機械における開閉カバー構造である。
請求項２の発明は、開閉カバーの上面部は、後高前低の傾斜状部分を有すると共に、開閉カバーは、該上面部の傾斜状部分の作業装置取付部側縁部を支点として開閉揺動する構成であることを特徴とする請求項１に記載の建設機械における開閉カバー構造である。
請求項３の発明は、収納室の後方には、エンジンやエンジン関連の機器装置が収納されるエンジンルームが設けられると共に、開閉カバーの上面部および反作業装置取付部側面部は、前記エンジンルームの一部を覆うべく後方に向けて延設されていることを特徴とする請求項１または２に記載の建設機械における開閉カバー構造である。 The present invention has been created in view of the above-described circumstances in order to solve these problems, and the invention of claim 1 provides the base end of the front working device at the intermediate portion in the left-right direction of the gantry frame. A working device mounting portion on which the mounting portion is mounted and supported, a driver's cab is provided on either the left or right side of the working device mounting portion, and a storage chamber for storing various equipment devices or tanks is provided on either the left or right side. In the construction machine as described above, when covering the opening / closing cover that can freely open and close the storage room, the opening / closing cover covers the front side, the upper side, and the counter work device mounting part side of the storage room. An opening / closing cover structure in a construction machine, wherein the side surface portion is integrally formed, and the opening / closing swinging operation is performed using an edge of the upper surface portion on the working device attachment portion side as a fulcrum.
In the invention of claim 2, the upper surface portion of the opening / closing cover has an inclined portion with a rear height, a front height, and a lower height, and the opening / closing cover is opened / closed with the edge portion of the inclined portion of the upper surface portion as a fulcrum. 2. The opening / closing cover structure for a construction machine according to claim 1, wherein the opening / closing cover structure is a moving structure.
According to a third aspect of the present invention, an engine room in which an engine and engine-related equipment are stored is provided at the rear of the storage chamber, and an upper surface portion of the opening / closing cover and a side surface portion of the counter work device mounting portion are provided in the engine room. The opening / closing cover structure for a construction machine according to claim 1, wherein the opening / closing cover structure extends rearward to cover a part of the construction machine.

請求項１の発明とすることにより、開閉カバーを開けることで、収納室の前方、上方、反作業装置取付部側方が全て開放された状態になって、何れの方向からも収納室内の機器装置類やタンク類にアクセスすることができ、点検、修理、部品交換、清掃等のメンテナンス作業を容易に行うことができると共に、開状態の開閉カバーは、収納室よりも上方に位置することになって、メンテナンスを行う作業員の邪魔になることなく、作業性の向上に大きく貢献できる。
請求項２の発明とすることにより、開閉カバーの上面部が後高前低の傾斜状部分を有するものであっても、該傾斜状部分の作業装置取付部側縁部を開閉カバーの開閉揺動の支点にすることによって、該開閉カバーの開閉揺動を支持するためのヒンジ部材を適宜間隔を存する状態で複数設けることができ、而して、ヒンジ部材に無理な負荷がかかることなく、長期にわたって円滑な開閉揺動を行うことができる。
請求項３の発明とすることにより、開閉カバーを開けることで、エンジンルーム内に収納されたエンジンやエンジン関連の機器装置のメンテナンスも行うことができ、よって、機体全体のメンテナンスを行うような場合に便利であって、更なるメンテナンス性の向上に寄与できる。 By opening the opening / closing cover, the front, upper side, and side of the counter-working device mounting portion are all opened by opening the opening / closing cover, and the equipment in the storage chamber can be viewed from any direction. Equipment and tanks can be accessed, maintenance work such as inspection, repair, parts replacement, and cleaning can be easily performed, and the open / close cover is positioned above the storage chamber. Thus, it can greatly contribute to the improvement of workability without interfering with maintenance workers.
According to the second aspect of the present invention, even when the upper surface portion of the opening / closing cover has an inclined portion with a rear height, a front height, and a lower height, the opening / closing swing of the opening / closing cover is used as the work device mounting portion side edge of the inclined portion. By using the fulcrum of movement, it is possible to provide a plurality of hinge members for supporting opening and closing swinging of the opening and closing cover in an appropriately spaced state, so that an unreasonable load is not applied to the hinge member, Smooth opening and closing can be performed over a long period of time.
According to the invention of claim 3, by opening the opening / closing cover, maintenance of the engine and engine-related equipment stored in the engine room can also be performed, and thus the maintenance of the entire body is performed. Convenient and can contribute to further improvement of maintainability.

次に、本発明の実施の形態について、図面に基づいて説明する。図ににおいて、１は建設機械の一例である小旋回型の油圧ショベルであって、該油圧ショベル１は、クローラ式の下部走行体２、該下部走行体２に旋回自在に支持される上部旋回体３、該上部旋回体３の前部に装着されるフロント作業装置４等の各部から構成されているが、前記上部旋回体３は、平面視において略円形状をしていて、下部走行体２の略車幅内で旋回できるように構成されている。   Next, embodiments of the present invention will be described with reference to the drawings. In the figure, reference numeral 1 denotes a small turning type hydraulic excavator which is an example of a construction machine. The hydraulic excavator 1 is a crawler type lower traveling body 2 and an upper turning supported by the lower traveling body 2 so as to be freely rotatable. The body 3 and the front working device 4 mounted on the front part of the upper swing body 3 are composed of various parts. The upper swing body 3 has a substantially circular shape in plan view, and is a lower traveling body. It is comprised so that it can turn within the approximate vehicle width of 2.

５は前記上部旋回体の架台となる旋回フレーム（本発明の架台フレームに相当する）であって、該旋回フレーム５の前半部の左右方向中間部には、前記フロント作業装置４を構成するブーム６の基端部が上下揺動自在に取付支持される左右の支持フレーム（本発明の作業装置取付部に相当する）７Ｌ、７Ｒが立設されている。さらに、左側支持フレーム７Ｌの左方には、オペレータが座する運転席や各種運転操作具（図示せず）が配されたキャブ（本発明の運転室に相当する）８が設けられる一方、右側支持フレーム７Ｒの右方には、後述する収納室９が設けられている。   Reference numeral 5 denotes a revolving frame (corresponding to the gantry frame of the present invention) that serves as a frame for the upper revolving structure, and a boom constituting the front working device 4 is provided at the middle in the left-right direction of the front half of the revolving frame 5. Left and right support frames (corresponding to the working device mounting portion of the present invention) 7L and 7R are installed upright so that the base end portion of 6 is mounted and supported so as to swing up and down. Further, on the left side of the left support frame 7L, there is provided a cab (corresponding to a driver's cab of the present invention) 8 in which a driver's seat on which an operator sits and various operation tools (not shown) are arranged. A storage chamber 9 described later is provided on the right side of the support frame 7R.

前記収納室９は、各種機器装置類やタンク類を収納するために設けられるスペースであって、本実施の形態では、コントロールバルブ１０、バッテリ１１、作動油タンク１２等が収納されている。そして、該収納室９の前側、上側、および右側は、後述する開閉カバー１３によって開閉自在に覆われる一方、収納室９の左側は前記右側支持フレーム７Ｒによって仕切られ、また、収納室９の後側には、後述するエンジンルーム１４が配されている。   The storage chamber 9 is a space provided for storing various devices and tanks. In the present embodiment, the control chamber 10, the battery 11, the hydraulic oil tank 12, and the like are stored. The front, upper, and right sides of the storage chamber 9 are covered with an opening / closing cover 13 that will be described later, while the left side of the storage chamber 9 is partitioned by the right support frame 7R. On the side, an engine room 14 to be described later is arranged.

前記エンジンルーム１４は、旋回フレーム５の後半部に設けられ、図示しないエンジンや、エンジン関連の各種機器装置が収納されるスペースであるが、該エンジン関連の機器装置の一つである冷却装置（ラジエータやオイルクーラー等）１５は、エンジンルーム１４の右側部分、つまり、収納室９の後方に位置するように配置されている。また、１６は前記エンジンルーム１４の後側を開閉するエンジンカバーであって、該エンジンカバー１６を開くことで、エンジンルーム１４の後方側からエンジンルーム１４内の機器装置のメンテナンスを行うことができるようになっている。尚、前記キャブ８の後部の下方も、エンジンルーム１４のスペースになっている。また、図中、１７は旋回フレーム５の後部に取付けられるカウンタウエイトである。   The engine room 14 is provided in the second half of the revolving frame 5 and is a space for storing an engine (not shown) and various engine-related equipment. A cooling device (one of the engine-related equipment) ( The radiator 15 and the oil cooler 15 are arranged so as to be positioned on the right side of the engine room 14, that is, behind the storage chamber 9. Reference numeral 16 denotes an engine cover that opens and closes the rear side of the engine room 14. By opening the engine cover 16, maintenance of equipment in the engine room 14 can be performed from the rear side of the engine room 14. It is like that. A space below the rear portion of the cab 8 is also a space of the engine room 14. In the figure, reference numeral 17 denotes a counterweight attached to the rear portion of the revolving frame 5.

一方、前記収納室９を開閉自在に覆う開閉カバー１３は、収納室９の前側を覆う前面部１３Ａと、上側を覆う上面部１３Ｂと、右側を覆う右面部（本発明の反作業装置取付部側面部に相当する）１３Ｃとが一体形成されていると共に、上面部１３Ｂおよび右面部１３Ｃは、収納部９だけでなくエンジンルーム１４の右側部分も覆うべく、収納室９の後端を越えて前記エンジンカバー１６の右端部に至るまで後方に向けて延設されている。而して、後述するように開閉カバー１３を開いた状態では、収納室９内に収納された機器装置類やタンク類のメンテナンスだけでなく、エンジンルーム１４の右側部分に収納された冷却装置（ラジエータやオイルクーラー等）１５のメンテナンスも行うことができるようになっている。   On the other hand, the opening / closing cover 13 that covers the storage chamber 9 in a freely openable / closable manner includes a front surface portion 13A that covers the front side of the storage chamber 9, an upper surface portion 13B that covers the upper side, and a right surface portion that covers the right side. 13C (corresponding to the side surface portion) are integrally formed, and the upper surface portion 13B and the right surface portion 13C extend beyond the rear end of the storage chamber 9 so as to cover not only the storage portion 9 but also the right side portion of the engine room 14. The engine cover 16 extends rearward until reaching the right end portion of the engine cover 16. Thus, when the open / close cover 13 is opened as will be described later, not only the maintenance of the equipment and tanks stored in the storage chamber 9 but also the cooling device ( (Radiator, oil cooler, etc.) 15 can also be maintained.

ここで、前記開閉カバー１３の上面部１３Ｂは、エンジンルーム１４を覆う部分は略水平状に形成されているが、収納室９を覆う部分は、キャブ８内のオペレータから視た右前方の視界が収納室９によって損なわれないように、後方側が高く前方側が低い後高前低の傾斜状に形成されている。そして、該上面部１３Ｂの傾斜状部分１３Ｂａの左側縁部（本発明の作業装置取付部側縁部に相当する）が、適宜間隔を存して配される二個のヒンジ部材１８、１８を介して、前記右側支持フレーム７Ｒに上下揺動自在に支持されている。而して、開閉カバー１３は、上面部１３Ｂの傾斜上部分１３Ｂａの左側縁部を支点として、収納室９およびエンジンルーム１４の右側部分を開く開状態と閉じる閉状態とに開閉揺動する構成になっている。そして、該開閉カバー１３の開状態では、収納室９の前方、上方、右方が全て開放された状態になり、また、エンジンルーム１４の右側部分の上方および右方が開放された状態になって、収納室９内の機器装置類やタンク類およびエンジンルーム１４内の冷却装置１５のメンテナンスを容易に行うことができると共に、開状態の開閉カバー１３は、収納室９よりも上方に位置していて、メンテナンスを行う作業員の邪魔にならないようになっている。尚、収納室９には、図示しないが、前記開閉カバー１３の開側への揺動を付勢するダンパーが設けられている。   Here, the upper surface portion 13B of the opening / closing cover 13 is formed so that the portion covering the engine room 14 is substantially horizontal, but the portion covering the storage chamber 9 is the right front view seen from the operator in the cab 8. However, it is formed in an inclined shape of a rear height, a front height and a low height so that the rear side is high and the front side is low. And the two left side edge part (equivalent to the working device attachment part side edge part of this invention) of this inclined part 13Ba of this upper surface part 13B is distribute | arranged at appropriate intervals, and two hinge members 18 and 18 are arranged. Via the right support frame 7R. Thus, the opening / closing cover 13 is configured to swing open and close between the open state and the closed state in which the right side portions of the storage chamber 9 and the engine room 14 are opened, with the left side edge portion of the inclined upper portion 13Ba of the upper surface portion 13B as a fulcrum. It has become. In the open state of the opening / closing cover 13, the front, upper, and right sides of the storage chamber 9 are all open, and the upper and right sides of the right side portion of the engine room 14 are open. Thus, maintenance of the equipment and tanks in the storage chamber 9 and the cooling device 15 in the engine room 14 can be easily performed, and the open / close cover 13 is positioned above the storage chamber 9. Therefore, it does not get in the way of maintenance workers. Although not shown, the storage chamber 9 is provided with a damper that biases the opening / closing cover 13 to swing toward the open side.

ところで、前記開状態の開閉カバー１３は、上面部１３Ｂが略垂直状となるまで上動するようになっており、これによって収納部９の上方を大きく開くことができるようになっているが、この場合に、開閉カバー１３の上面部１３Ｂがブーム６に干渉してしまうことで開閉カバー１３の開放が妨げられることがないように、開閉カバー１３は、該開閉カバー１３の左側縁部と右側支持フレーム７Ｒとの間に若干の間隙を存する状態で、右側支持フレーム７Ｒに開閉揺動自在に支持されている。そして、該間隙部分は、右側支持フレーム７Ｒの上縁部に固着される幅狭帯状の固定カバー１９によって塞がれているが、該固定カバー１９は、右側支持フレーム７Ｒの後端を越えて前記エンジンカバー１６に至るまで後方に向けて延設されている。   By the way, the open / close cover 13 in the open state moves up until the upper surface portion 13B becomes substantially vertical, and thereby, the upper portion of the storage portion 9 can be greatly opened. In this case, the opening / closing cover 13 has a left side edge and a right side of the opening / closing cover 13 so that the upper surface 13B of the opening / closing cover 13 does not interfere with the boom 6 and the opening of the opening / closing cover 13 is not hindered. With a slight gap between the support frame 7R and the right support frame 7R, the support frame 7R is supported so as to be able to open and close. The gap is closed by a narrow band-shaped fixed cover 19 fixed to the upper edge of the right support frame 7R. The fixed cover 19 extends beyond the rear end of the right support frame 7R. The engine cover 16 extends rearward until reaching the engine cover 16.

叙述の如く構成された本形態において、油圧ショベル１の旋回フレーム５の左右方向中間部には、フロント作業機４を構成するブーム６の基端部が取付支持される支持フレーム７Ｌ、７Ｒが設けられると共に、該支持フレーム７Ｌ、７Ｒの左方には、運転席や各種運転操作具が配されるキャブ８が設けられ、また、支持フレーム７Ｌ、７Ｒの右方には、コントロールバルブ１０、バッテリ１１等の各種機器装置類や作動油タンク１２等のタンク類が収納される収納室９が設けられており、そして、該収納室９は、開閉自在な開閉カバー１３によって覆われているが、該開閉カバー１３は、収納室９の前側、上側、右側を覆う前面部１３Ａ、上面部１３Ｂ、右面部１３Ｃが一体形成されたものであると共に、上面部１３Ｂの左側端部を支点として、収納室９を開く開状態と閉じる閉状態とに開閉揺動することになる。   In the present embodiment configured as described, support frames 7L and 7R to which the base end portion of the boom 6 constituting the front work machine 4 is attached and supported are provided in the left-right intermediate portion of the swing frame 5 of the excavator 1. In addition, a cab 8 on which a driver's seat and various operation tools are arranged is provided on the left side of the support frames 7L and 7R, and a control valve 10 and a battery are provided on the right side of the support frames 7L and 7R. 11 is provided with a storage chamber 9 in which tanks such as various equipment devices and hydraulic oil tank 12 are stored, and the storage chamber 9 is covered with an openable opening / closing cover 13. The opening / closing cover 13 is formed by integrally forming a front surface portion 13A, an upper surface portion 13B, and a right surface portion 13C that cover the front side, upper side, and right side of the storage chamber 9, and a left end portion of the upper surface portion 13B as a fulcrum. Closing the open state to open the storage chamber 9 so that the opening and closing swing and closed.

この結果、開閉カバー１３の開状態では、収納室９の前方、上方、右方が全て開放された状態になって、何れの方向からも収納室９内の機器装置類やタンク類にアクセスすることができ、点検、修理、部品交換、清掃等のメンテナンス作業を容易に行うことができると共に、開状態の開閉カバー１３は、収納室９よりも上方に位置していて、メンテナンスを行う作業員の邪魔になることなく、作業性の向上に大きく貢献できる。   As a result, when the open / close cover 13 is opened, the front, upper, and right sides of the storage chamber 9 are all open, and the devices and tanks in the storage chamber 9 are accessed from any direction. It is possible to easily perform maintenance work such as inspection, repair, parts replacement, and cleaning, and the open / close cover 13 is located above the storage chamber 9 and performs maintenance. It can greatly contribute to the improvement of workability without getting in the way.

しかも、本実施の形態において、開閉カバー１３の上面部１３Ｂおよび右面部１３ Ｃは、収納室９の後端よりも後方に向けて延設されていて、収納室９の後方に設けられるエンジンルーム１４の右側部分も覆う構成になっているから、開閉カバー１３を開くことによって、エンジンルーム１４の右側部分に配される冷却装置１５のメンテナンスも行うことができ、よって、機体全体のメンテナンスを行うような場合に便利であって、更なるメンテナンス性の向上に寄与できる。   Moreover, in the present embodiment, the upper surface portion 13B and the right surface portion 13C of the opening / closing cover 13 are extended rearward from the rear end of the storage chamber 9, and are provided at the rear of the storage chamber 9. 14 is also configured to cover the right side portion of the engine 14, so that by opening the open / close cover 13, the cooling device 15 arranged in the right side portion of the engine room 14 can also be maintained, and thus the entire machine body is maintained. This is convenient in such a case, and can contribute to further improvement in maintainability.

さらに、前記開閉カバー１３の上面部１３Ｂは、キャブ８内のオペレータから視た右前方の視界が収納室９によって損なわれないように、収納室９を覆う部分が後高前低の傾斜状に形成されていると共に、開閉カバー１３は、前記上面部１３Ｂの傾斜状部分１３Ｂａの左側縁部を支点として開閉揺動する構成になっている。而して、開閉カバー１３の上面部１３Ｂが傾斜状に形成されていても、該傾斜状部分１３Ｂａの左側縁部を開閉揺動の支点とすることによって、開閉カバー１３の開閉揺動を支持するヒンジ部材１８、１８を適宜間隔を存する状態で複数（本実施の形態では二個）設けることができ、よって、前面部１３Ａ、上面部１３Ｂおよび右面部１３Ｃが一体形成された大きな開閉カバー１３であっても、ヒンジ部材１８、１８に無理な負荷がかかることなく、長期にわたって円滑な開閉揺動を行うことができる。   Further, the upper surface portion 13B of the opening / closing cover 13 has an inclined portion that covers the storage chamber 9 so that the right front view viewed from the operator in the cab 8 is not damaged by the storage chamber 9. The opening / closing cover 13 is configured to swing open / close with the left edge of the inclined portion 13Ba of the upper surface portion 13B as a fulcrum. Thus, even if the upper surface portion 13B of the open / close cover 13 is formed in an inclined shape, the open / close swing of the open / close cover 13 is supported by using the left edge of the inclined portion 13Ba as a fulcrum for the open / close swing. A plurality of hinge members 18 and 18 (two in the present embodiment) can be provided at appropriate intervals. Accordingly, the large opening / closing cover 13 in which the front surface portion 13A, the upper surface portion 13B, and the right surface portion 13C are integrally formed. Even so, the hinge members 18 and 18 can be smoothly opened and closed over a long period without applying an excessive load.

尚、本発明は上記実施の形態に限定されないことは勿論であって、上記実施の形態における開閉カバー１３は、収納室９に加えてエンジンルーム１４の右側部分も覆うように構成されているが、図１０、図１１に示す第二の実施の形態の如く、収納室９だけを覆う開閉カバー２０であっても良いことは、言うまでもない。尚、この第二の実施の形態のものにおいて、エンジンルーム１４の右側部分は、前記開閉カバー２０およびエンジンカバー１６とは別個に開閉するエンジン側面カバー２１によって覆われている。また、前記開閉カバー２０およびエンジン側面カバー２１を除く部分は、前述した第一の実施の形態と同様であるため、同一の符号を附すと共に、説明を省略するが、図１０、図１１中、２０Ａ、２０Ｂ、２０Ｃはそれぞれ開閉カバー２０の前面部、上面部、右面部（本発明の反作業装置取付部側面部に相当する）であって、該開閉カバー２０の上面部２０Ｂは、後高前低の傾斜状に形成されていると共に、該傾斜状の上面部２０Ｂの左側縁部（本発明の作業装置取付部側縁部に相当する）を支点として開閉揺動する構成になっている。   Needless to say, the present invention is not limited to the above embodiment, and the opening / closing cover 13 in the above embodiment is configured to cover the right side portion of the engine room 14 in addition to the storage chamber 9. Of course, as in the second embodiment shown in FIGS. 10 and 11, it may be an opening / closing cover 20 that covers only the storage chamber 9. In the second embodiment, the right side portion of the engine room 14 is covered with an engine side cover 21 that opens and closes separately from the opening / closing cover 20 and the engine cover 16. The parts other than the opening / closing cover 20 and the engine side cover 21 are the same as those in the first embodiment described above. , 20A, 20B, and 20C are a front surface portion, an upper surface portion, and a right surface portion of the opening / closing cover 20, respectively (corresponding to the side surface portion of the counter work device mounting portion of the present invention), and the upper surface portion 20B of the opening / closing cover 20 In addition to being formed in a high and low slope shape, it is configured to open and close and swing with the left edge of the sloped upper surface portion 20B (corresponding to the working device mounting portion side edge of the present invention) as a fulcrum. Yes.

さらに、上記実施の形態のものでは、運転室としてキャブを例示したが、これに限定されることなく、オペレータが座する運転席や運転操作具が設けられているスペースであれば、キャブが設けられていない場合、例えばキャノピ仕様のものでもあっても、勿論よい。また、上記実施の形態では、収納室の後方のエンジンルーム部分には冷却装置が収納されいるが、他のエンジン関連の機器装置が収納されている場合であっても、勿論よい。さらに、本発明は、小旋回型の油圧ショベルに設けられる収納室の開閉カバーだけでなく、各種建設機械に設けられる収納室の開閉カバーに実施することができる。   Further, in the above embodiment, the cab is exemplified as the driver's cab. However, the cab is not limited to this, and the cab is provided in a space where a driver's seat where the operator sits and a driving operation tool are provided. If not, for example, it may be of a canopy specification. Moreover, in the said embodiment, although the cooling device is accommodated in the engine room part of the back of a storage chamber, of course, it may be a case where the other apparatus apparatus related to an engine is accommodated. Furthermore, the present invention can be implemented not only in the opening / closing cover of the storage chamber provided in the small swing type hydraulic excavator but also in the opening / closing cover of the storage chamber provided in various construction machines.

小旋回型油圧ショベルの側面図である。It is a side view of a small turning type hydraulic excavator. 開閉カバーを閉じた状態の上部旋回体の側面図である。It is a side view of the upper revolving structure with the open / close cover closed. 開閉カバーを開いた状態の上部旋回体の側面図である。It is a side view of the upper revolving structure with the opening / closing cover opened. 開閉カバーを閉じた状態の上部旋回体の平面図である。It is a top view of the upper revolving body in the state where the open / close cover is closed. 開閉カバーを開いた状態の上部旋回体の平面図である。It is a top view of the upper revolving structure in the state where the open / close cover is opened. 開閉カバーを閉じた状態の上部旋回体の正面図である。It is a front view of the upper revolving structure in a state where the open / close cover is closed. 開閉カバーを開いた状態の上部旋回体の正面図である。It is a front view of the upper revolving structure with the open / close cover open. 開閉カバーを閉じた状態の上部旋回体の背面図である。It is a rear view of the upper revolving structure in a state where the open / close cover is closed. 開閉カバーを開いた状態の上部旋回体の背面図である。It is a rear view of the upper revolving structure with the open / close cover opened. 第二の実施の形態における開閉カバーを閉じた状態の上部旋回体の側面図である。It is a side view of the upper revolving structure in the state where the open / close cover in the second embodiment is closed. 第二の実施の形態における開閉カバーを開いた状態の上部旋回体の側面図である。It is a side view of the upper revolving structure in the state where the open / close cover is opened in the second embodiment.

符号の説明Explanation of symbols

４ フロント作業装置
５ 旋回フレーム
７Ｌ、７Ｒ 左右の支持フレーム
８ キャブ
９ 収納室
１３ 開閉カバー
１３Ａ 前面部
１３Ｂ 上面部
１３Ｂａ 傾斜状部分
１３Ｃ 右面部
１４ エンジンルーム
２０ 開閉カバー
２０Ａ 前面部
２０Ｂ 上面部
２０Ｃ 右面部 4 Front working device 5 Revolving frame 7L, 7R Left and right support frames 8 Cab 9 Storage chamber 13 Opening / closing cover 13A Front surface 13B Top surface 13Ba Inclined portion 13C Right surface 14 Engine room 20 Opening / closing cover 20A Front surface 20B Upper surface 20C Right surface

Claims (3)

架台フレームの左右方向中間部に、フロント作業装置の基端部が取付支持される作業装置取付部を設けると共に、該作業装置取付部の左右何れか一方に運転室を設け、左右何れか他方に各種機器装置類やタンク類が収納される収納室を設けてなる建設機械において、前記収納室を開閉自在な開閉カバーを覆うにあたり、該開閉カバーは、収納室の前側、上側、反作業装置取付部側を覆う前面部、上面部、反作業装置取付部側面部が一体形成されたものとすると共に、上面部の作業装置取付部側縁部を支点として開閉揺動する構成であることを特徴とする建設機械における開閉カバー構造。   A working device mounting portion for mounting and supporting the base end portion of the front working device is provided at the intermediate portion in the left-right direction of the gantry frame, and a cab is provided on either the left or right side of the working device mounting portion, and on either the left or right side In a construction machine provided with a storage room for storing various equipment and tanks, when covering the open / close cover that can be opened and closed, the open / close cover is attached to the front side, the upper side, and the counter work device. The front surface portion, the upper surface portion, and the side surface portion of the anti-work device attachment portion that cover the upper portion side are integrally formed, and the structure is configured to swing open and close with the work device attachment portion side edge of the upper surface portion as a fulcrum. Opening and closing cover structure in construction machinery. 開閉カバーの上面部は、後高前低の傾斜状部分を有すると共に、開閉カバーは、該上面部の傾斜状部分の作業装置取付部側縁部を支点として開閉揺動する構成であることを特徴とする請求項１に記載の建設機械における開閉カバー構造。   The upper surface portion of the opening / closing cover has an inclined portion with a rear height, a front and a lower height, and the opening / closing cover is configured to swing open / close with the edge portion of the inclined portion of the upper surface portion as a fulcrum. 2. The opening / closing cover structure in a construction machine according to claim 1, 収納室の後方には、エンジンやエンジン関連の機器装置が収納されるエンジンルームが設けられると共に、開閉カバーの上面部および反作業装置取付部側面部は、前記エンジンルームの一部を覆うべく後方に向けて延設されていることを特徴とする請求項１または２に記載の建設機械における開閉カバー構造。   An engine room in which the engine and engine-related equipment are housed is provided at the rear of the storage room, and the upper surface portion of the opening / closing cover and the side surface portion of the counter work device mounting portion are arranged to cover a part of the engine room. The opening / closing cover structure in the construction machine according to claim 1, wherein the opening / closing cover structure extends toward the top.
JP2007126817A 2007-05-11 2007-05-11 Opening/closing cover structure in construction machine Pending JP2008279930A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
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JP2013256766A (en) * 2012-06-11 2013-12-26 Kubota Corp Work machine
JPWO2013069628A1 (en) * 2011-11-11 2015-04-02 日立建機株式会社 Construction machinery
EP4317598A1 (en) 2022-08-03 2024-02-07 Yanmar Holdings Co., Ltd. Work machine

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Publication number Priority date Publication date Assignee Title
JPWO2013069628A1 (en) * 2011-11-11 2015-04-02 日立建機株式会社 Construction machinery
KR101921779B1 (en) * 2011-11-11 2019-02-13 히다찌 겐끼 가부시키가이샤 Construction equipment
JP2013256766A (en) * 2012-06-11 2013-12-26 Kubota Corp Work machine
DE102013202279B4 (en) 2012-06-11 2021-09-09 Kubota Corporation Working machine
EP4317598A1 (en) 2022-08-03 2024-02-07 Yanmar Holdings Co., Ltd. Work machine

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