JP4175985B2 - Step and construction machinery - Google Patents

Step and construction machinery Download PDF

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JP4175985B2
JP4175985B2 JP2003334816A JP2003334816A JP4175985B2 JP 4175985 B2 JP4175985 B2 JP 4175985B2 JP 2003334816 A JP2003334816 A JP 2003334816A JP 2003334816 A JP2003334816 A JP 2003334816A JP 4175985 B2 JP4175985 B2 JP 4175985B2
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tread surface
auxiliary plate
view
construction machine
tip
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JP2005098013A (en
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秀明 田中
裕 尾上
一郎 平見
浩 小林
和弘 一村
義勝 鈴木
貢 小島
秀治 石丸
穂積 根矢
剛 高山
一彦 平岡
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Hitachi Construction Machinery Co Ltd
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Hitachi Construction Machinery Co Ltd
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    • 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

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Description

本発明は、油圧ショベルやクレーンあるいはその応用機械等の建設機械の車体に設置されて作業員やオペレータの昇降を容易にするステップおよびそのステップを備えた建設機械に係わり、特にその踏み面の構成に関する。   The present invention relates to a step that is installed on the body of a construction machine such as a hydraulic excavator, a crane, or an application machine thereof, and makes it easy for an operator or an operator to move up and down, and a construction machine including the step, and more particularly, a configuration of a tread surface thereof About.

油圧ショベルやクレーンあるいはこれらの応用機械のような建設機械においては、車体上に搭載されるパワーユニットの点検や、燃料タンクへの給油などのため、特許文献１に記載のように、ステップが設けられる。   In a construction machine such as a hydraulic excavator, a crane, or an application machine thereof, a step is provided as described in Patent Document 1 in order to check a power unit mounted on a vehicle body or to supply fuel to a fuel tank. .

特開２０００−２４０１０２号公報JP 2000-240102 A

従来のステップは、踏み面の先端に縦壁の頂部が接合された構造を有している。したがって、狭い場所で踏み面の幅（踏み代）を確保しようとすると、設計が容易でないという問題点がある。特に意匠性（外観）の向上のため、前記縦壁の下方が突き出すように傾斜した形状に形成しようとすると、踏み代が狭くなり、このような意匠性の向上を図った構造の実現が難しい。   The conventional step has a structure in which the top of the vertical wall is joined to the tip of the tread surface. Therefore, there is a problem that the design is not easy when it is attempted to secure the width (stepping allowance) of the tread surface in a narrow place. In particular, in order to improve the designability (appearance), if an attempt is made to form a slanted shape so that the lower part of the vertical wall protrudes, the step margin becomes narrow, and it is difficult to realize a structure that improves such designability. .

本発明は、上記問題点に鑑み、踏み代の確保が容易であると共に、意匠性の向上が容易となる構造のステップおよび建設機械を提供することを目的とする。   In view of the above problems, an object of the present invention is to provide a step and a construction machine having a structure in which it is easy to secure a stepping allowance and an improvement in designability.

（１）本発明のステップは、建設機械の車体に設けられるステップにおいて、
建設機械の車体に設けられるステップにおいて、
縦壁と踏み面とを有するステップ本体と、
前記ステップ本体に固定される補助板とを備え、
前記補助板は、滑り止め板を兼ねた水平部と、この水平部の先端より下方に折り返し状に折り曲げた部分と、その折り曲げた部分の先端に形成され、前記縦壁に固定する取付け部とを有し、
前記滑り止め板を兼ねた水平部は、前記ステップ本体の踏み面を覆うように前記踏み面上に重ねて固定する部分と前記踏み面の先端より一部を水平に突出させた部分とを有し、前記ステップ本体の踏み面と、前記補助板の前記踏み面より突出した突出幅とにより、必要な踏み代を確保した
ことを特徴とする。 (1) The step of the present invention is a step provided in a vehicle body of a construction machine,
In the steps provided on the body of the construction machine,
A step body having a vertical wall and a tread surface;
And an auxiliary plate that will be fixed to the step body,
The auxiliary plate includes a horizontal portion that also serves as an anti-slip plate, a portion that is folded back below the tip of the horizontal portion, and a mounting portion that is formed at the tip of the bent portion and is fixed to the vertical wall. Have
The horizontal portion that also serves as the anti-slip plate has a portion that is overlapped and fixed on the tread surface so as to cover the tread surface of the step body, and a portion that is partially protruded horizontally from the tip of the tread surface. The step width of the step main body and the protruding width of the auxiliary plate protruding from the step surface are ensured .

（２）また、本発明のステップは、前記（１）において、
前記ステップ本体は、建設機械の構成部品としての機器または付属品を収容する箱を構成することを特徴とする。 ( 2 ) Moreover, the step of the present invention is the above (1) .
The step body constitutes a box that accommodates equipment or accessories as components of a construction machine.

（３）本発明の建設機械は、前記（１）または（２）に記載のステップを備えたことを特徴とする。 ( 3 ) A construction machine according to the present invention is characterized by including the steps described in (1) or (2) .

本発明のステップは、ステップ本体の踏み面より水平に突出させた部分を有する補助板を設けたため、前壁を傾斜させた構造にしても、必要とされる踏み面を容易に確保することができ、意匠性に優れたステップが実現できる。また、前壁が垂直である場合、あるいは前壁の傾斜が小さい場合には、補助板の下に、下の段の踏み代を得ることができ、狭い設置スペースのところに複数段のステップを容易に構成することができる。   Since the step of the present invention is provided with an auxiliary plate having a portion that protrudes horizontally from the step surface of the step body, the required tread surface can be easily secured even if the front wall is inclined. And a step with excellent design can be realized. In addition, when the front wall is vertical or when the inclination of the front wall is small, it is possible to obtain a lower step allowance under the auxiliary plate, and multiple steps in a narrow installation space. It can be easily configured.

図１、図２はそれぞれ本発明によるステップを備えた建設機械の一例を示す平面図および右側面図、図３はそのフロントアタッチメントを省略して示す左側面図である。この建設機械はホイール式油圧ショベルについて例示するものであり、ホイール式走行体１上に旋回装置２を介して旋回体（車体）３を設置し、旋回体３上に油圧パワーユニット４、運転室５、カウンタウエイト６等を搭載すると共に、バケット７ａと多関節アーム７ｂからなるフロントアタッチメント７を取付けてなる。   FIGS. 1 and 2 are a plan view and a right side view, respectively, showing an example of a construction machine having steps according to the present invention, and FIG. 3 is a left side view showing the front attachment omitted. This construction machine exemplifies a wheel-type hydraulic excavator. A revolving body (vehicle body) 3 is installed on a wheel-type traveling body 1 via a revolving device 2, and a hydraulic power unit 4 and a cab 5 are disposed on the revolving body 3. A counterweight 6 and the like are mounted, and a front attachment 7 including a bucket 7a and an articulated arm 7b is attached.

前記油圧パワーユニット４はエンジン、油圧ポンプ、発電機、二次電池、油タンク、燃料タンク、ラジエータ等を含み、これらは開閉可能な蓋状部分を有するカバー（建屋）により覆われており、燃料タンク９への給油やエンジン等の点検のため、旋回体３の右前方に設けたステップ１０からカバーの上面部に昇降できるようになっている。なお、本実施の形態にいては、ステップ本体１３は、フレーム３ａとの間に設けられる空間部を開閉する上蓋を構成しており、この空間部は、メンテナンス用の工具類および油脂類を収容する付属品室となっている。また、ステップ本体１４は、内部にバルブ類などの油圧機器を収容した機器収容室となっている。   The hydraulic power unit 4 includes an engine, a hydraulic pump, a generator, a secondary battery, an oil tank, a fuel tank, a radiator, and the like, which are covered with a cover (building) having a lid-like portion that can be opened and closed. 9 can be moved up and down from the step 10 provided on the right front side of the swivel body 3 to the upper surface of the cover for refueling and checking the engine and the like. In the present embodiment, the step main body 13 constitutes an upper lid that opens and closes a space provided between the step body 13 and the frame 3a, and this space contains a maintenance tool and fats and oils. It is an accessory room. Further, the step main body 14 is a device storage chamber in which hydraulic devices such as valves are stored.

図４（Ａ）、（Ｂ）、（Ｃ）はそれぞれ前記ステップ１０の平面図、側面図、正面図である。図４において、３ａは旋回体３のフレームであり、９は燃料タンクである。ステップ１０は、燃料タンク９ないしはその後部のカバー上面への昇降を容易にするために設けられる。１１、１２は旋回体フレーム３ａに取付けられた手摺であり、ステップ１０に昇降する際に作業員が把持するものである。   4A, 4B, and 4C are a plan view, a side view, and a front view, respectively, of step 10. In FIG. 4, 3a is a frame of the revolving structure 3, and 9 is a fuel tank. Step 10 is provided to facilitate raising and lowering of the fuel tank 9 or its rear part to the upper surface of the cover. Reference numerals 11 and 12 denote handrails attached to the revolving body frame 3a, which are gripped by an operator when moving up and down to the step 10.

前記ステップ１０は２段に構成され、各段のステップ本体１３、１４の縦壁１３ａ、１４ａは下方が前方に突出するように傾斜した傾斜面に形成している。第２段のステップの踏み面１４ｂには補助板１５が取付けられる。   The step 10 is configured in two steps, and the vertical walls 13a and 14a of the step bodies 13 and 14 of each step are formed on inclined surfaces so that the lower part protrudes forward. An auxiliary plate 15 is attached to the tread surface 14b of the second step.

図５（Ａ）、（Ｂ）、（Ｃ）はそれぞれ前記補助板１５の平面図、側面図、正面図である。該補助板１５は水平部１５ｄの一部でステップ本体１４の踏み面１４ｂを覆う構造を有する。すなわち、図４（Ｂ）に示すように、水平部１５ｄは、ステップ本体１４の踏み代ａより大きな踏み代ｂを有し、補助板１５の水平部１５ｄの別の一部がステップ本体１４の踏み面１４ｂの先端より水平にｃに示す幅だけ突出した構造でボルト１６により取付けられる。なお、この補助板１５の取付けは溶接により行なってもよい。 5A, 5B, and 5C are a plan view, a side view, and a front view of the auxiliary plate 15, respectively. The auxiliary plate 15 has a structure that covers the tread surface 14b of the step body 14 by a part of the horizontal portion 15d . That is, as shown in FIG. 4B, the horizontal portion 15 d has a step allowance b larger than the step allowance a of the step body 14, and another part of the horizontal portion 15 d of the auxiliary plate 15 is a part of the step body 14. The bolt 16 is attached with a structure that protrudes horizontally from the tip of the tread surface 14b by a width indicated by c. The auxiliary plate 15 may be attached by welding.

補助板１５は先端より下方に折り返し状に折り曲げ、その折り曲げ部１５ｂの先端をさらにステップ本体１４の縦壁１４ａに沿う形状に折り曲げて取付け部１５ｃを形成し、その取付け部１５ｃを前記縦壁１４ａにボルト１７により固定して取付け強度を高めている。また、該補助板１５は、その踏み面となる水平部１５ｄに凹凸を設けることにより、滑り止め板の役目を兼ねさせている。 The auxiliary plate 15 is folded back downward from the tip , and the tip of the bent portion 15b is further bent into a shape along the vertical wall 14a of the step body 14 to form a mounting portion 15c, and the mounting portion 15c is formed into the vertical wall 14a. It is fixed with bolts 17 to increase the mounting strength. The auxiliary plate 15 also serves as a non-slip plate by providing irregularities in the horizontal portion 15d serving as a tread surface.

このように、ステップ本体１４の踏み面１４ｂより一部が水平に突出するような補助板１５を設けた構造とすれば、縦壁１４ａを傾斜させた構造にしても、必要とされる踏み代を容易に確保することができ、意匠性に優れたステップが実現できる。   In this way, if the auxiliary plate 15 is provided so that a part of the step body 14 protrudes horizontally from the tread surface 14b, the required tread amount is required even if the vertical wall 14a is inclined. Can be easily secured, and a step with excellent design can be realized.

なお、図４の例では補助板１５の端部をステップ本体１４の踏み面１４ｂの端部に一致させた場合について示したが、多少、補助板１５を踏み面１４ｂより突出方向にずらしてもよく、その場合、ステップ本体の踏み面の踏み代ａと、前記補助板１５の該踏み面より突出した突出幅ｃを所定の寸法に設定することにより、必要な踏み代ｂ（ｂ＝ａ＋ｃ）を確保することができる。   In the example of FIG. 4, a case where the end of the auxiliary plate 15 is made to coincide with the end of the tread surface 14b of the step body 14 is shown, but the auxiliary plate 15 may be slightly shifted from the tread surface 14b in the protruding direction. Well, in that case, the necessary tread b (b = a + c) is set by setting the tread a of the tread of the step body and the protruding width c protruding from the tread of the auxiliary plate 15 to predetermined dimensions. Can be secured.

図６（Ａ）、（Ｂ）、（Ｃ）はそれぞれ本発明によるステップの他の実施の形態を示す平面図、側面図、正面図である。本実施の形態においては、ステップ本体１４の前壁１４ａを垂直に形成したものであり、補助板１５は前記同様に一部１５ａがステップ本体１４の踏み面１４ｂより突出した構造で取付けられる。この場合、第１段目の踏み面１３ｂは補助板１５の前記突出部１５ａの幅ｃの下に想到する部分が踏み面として利用できるから、踏み面１３ｂを広く確保することができる。換言すれば、狭いスペースであっても、踏み代を容易に確保することができる。   6A, 6B, and 6C are a plan view, a side view, and a front view, respectively, showing another embodiment of the step according to the present invention. In the present embodiment, the front wall 14a of the step body 14 is formed vertically, and the auxiliary plate 15 is attached with a structure in which a part 15a protrudes from the tread surface 14b of the step body 14 as described above. In this case, since the first step tread surface 13b can be used as a tread surface under the width c of the protrusion 15a of the auxiliary plate 15, the tread surface 13b can be secured widely. In other words, it is possible to easily secure the stepping allowance even in a narrow space.

上記実施の形態においては、旋回体３上の運転室５の反対側に設けるステップ１０について示したが、本発明は、運転室に昇降するためのステップ等にも利用することができる。また本発明は、油圧ショベルのみならず、ローダショベル、クレーンあるいはこれらの応用機械に用いることができる。   In the said embodiment, although shown about step 10 provided in the opposite side of the driver's cab 5 on the turning body 3, this invention can be utilized also for the step etc. for raising / lowering to a driver's cab. Further, the present invention can be used not only for a hydraulic excavator but also for a loader excavator, a crane, or an application machine thereof.

本発明によるステップを用いる建設機械の一例を示す平面図である。It is a top view which shows an example of the construction machine using the step by this invention. 図１の右側面図である。It is a right view of FIG. 図１、図２の建設機械を、フロントアタッチメントを省略して示す左側面図である。FIG. 3 is a left side view of the construction machine shown in FIGS. 1 and 2 with a front attachment omitted. （Ａ）、（Ｂ）、（Ｃ）はそれぞれ本実施の形態のステップを示す平面図、側面図、正面図である。(A), (B), (C) is the top view, side view, and front view which show the step of this Embodiment, respectively. （Ａ）、（Ｂ）、（Ｃ）はそれぞれ図４のステップに用いる補助板を示す平面図、側面図、正面図である。(A), (B), (C) is the top view, side view, and front view which respectively show the auxiliary | assistant board used for the step of FIG. （Ａ）、（Ｂ）、（Ｃ）はそれぞれ本発明のステップの他の実施の形態を示す平面図、側面図、正面図である。(A), (B), (C) is the top view, side view, and front view which show other embodiment of the step of this invention, respectively.

符号の説明Explanation of symbols

１：走行体、２：旋回装置、３：旋回体、３ａ：旋回体フレーム、４：油圧パワーユニット、５：運転室、６：カウンタウエイト、７：フロントアタッチメント、９：燃料タンク、１０：ステップ、１１、１２：手摺、１３、１４：ステップ本体、１３ａ、１４ａ：縦壁、１３ｂ、１４ｂ：踏み面、１５：補助板、１５ａ：突出部、１５ｂ：折り曲げ部、１５ｃ：取付け部、１５ｄ：水平部 1: traveling body, 2: turning device, 3: turning body, 3a: turning body frame, 4: hydraulic power unit, 5: cab, 6: counterweight, 7: front attachment, 9: fuel tank, 10: step, 11, 12: Handrail, 13, 14: Step body, 13a, 14a: Vertical wall , 13b, 14b: Tread surface, 15: Auxiliary plate, 15a: Protruding part, 15b: Bending part, 15c: Mounting part, 15d: Horizontal Part

Claims (3)

建設機械の車体に設けられるステップにおいて、
縦壁と踏み面とを有するステップ本体と、
前記ステップ本体に固定される補助板とを備え、
前記補助板は、滑り止め板を兼ねた水平部と、この水平部の先端より下方に折り返し状に折り曲げた部分と、その折り曲げた部分の先端に形成され、前記縦壁に固定する取付け部とを有し、
前記滑り止め板を兼ねた水平部は、前記ステップ本体の踏み面を覆うように前記踏み面上に重ねて固定する部分と前記踏み面の先端より一部を水平に突出させた部分とを有し、前記ステップ本体の踏み面と、前記補助板の前記踏み面より突出した突出幅とにより、必要な踏み代を確保した
ことを特徴とするステップ。 In the steps provided on the body of the construction machine,
A step body having a vertical wall and a tread surface;
And an auxiliary plate that will be fixed to the step body,
The auxiliary plate includes a horizontal portion that also serves as an anti-slip plate, a portion that is folded back below the tip of the horizontal portion, and a mounting portion that is formed at the tip of the bent portion and is fixed to the vertical wall. Have
The horizontal portion that also serves as the anti-slip plate has a portion that is overlapped and fixed on the tread surface so as to cover the tread surface of the step body, and a portion that is partially protruded horizontally from the tip of the tread surface. And a step is secured by a step surface of the step body and a protrusion width protruding from the step surface of the auxiliary plate . 請求項１に記載のステップにおいて、
前記ステップ本体は、建設機械の構成部品としての機器または付属品を収容する箱を構成することを特徴とするステップ。 The step of claim 1 ,
The step main body constitutes a box for accommodating equipment or accessories as components of a construction machine. 請求項１または２に記載のステップを備えたことを特徴とする建設機械。 A construction machine comprising the steps according to claim 1 .
JP2003334816A 2003-09-26 2003-09-26 Step and construction machinery Expired - Fee Related JP4175985B2 (en)

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JP2005207028A (en) * 2004-01-20 2005-08-04 Sumitomo (Shi) Construction Machinery Manufacturing Co Ltd Step device of construction machine
KR101078340B1 (en) * 2009-02-06 2011-10-31 볼보 컨스트럭션 이큅먼트 에이비 handrail of excavator
JP5257117B2 (en) * 2009-02-16 2013-08-07 コベルコ建機株式会社 Construction machine step structure
KR101587556B1 (en) * 2009-02-17 2016-01-22 볼보 컨스트럭션 이큅먼트 에이비 foot step apparatus for heavy construction equipment
JP5956833B2 (en) * 2012-05-29 2016-07-27 日立建機株式会社 Construction machinery
JP7403381B2 (en) 2020-04-30 2023-12-22 日立建機株式会社 compaction machine

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