JP2008106430A - Crawler type revolving working machine - Google Patents

Crawler type revolving working machine Download PDF

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Publication number
JP2008106430A
JP2008106430A JP2006287217A JP2006287217A JP2008106430A JP 2008106430 A JP2008106430 A JP 2008106430A JP 2006287217 A JP2006287217 A JP 2006287217A JP 2006287217 A JP2006287217 A JP 2006287217A JP 2008106430 A JP2008106430 A JP 2008106430A
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crawler
traveling
work machine
getting
crawler type
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JP2006287217A
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健司 ▲高▼沢
Kenji Takazawa
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Caterpillar Japan Ltd
Caterpillar Mitsubishi Ltd
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Caterpillar Mitsubishi Ltd
Shin Caterpillar Mitsubishi Ltd
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Priority to JP2006287217A priority Critical patent/JP2008106430A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a crawler type revolving working machine having a step arrangement structure facilitating going up to and down from a super structure in the crawler type revolving working machine comprising the super structure on a crawler type lower structure, regardless of the placed position of a machine body, the revolving position of the super structure, or the like. <P>SOLUTION: The crawler type revolving working machine 2 comprises the lower structure 4 having a lateral pair of traveling frames 10a, 10b wound with crawlers 12, and the super structure 6 revolvably mounted on the lower structure 4. The pair of traveling frames 10a, 10b respectively comprise one or more steps S for going up to and down from the super structure 6, at each of inner side faces M facing each other, and outer side faces N located outside the lower structure 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、履帯式旋回作業機、さらに詳しくは、上部旋回体への乗降が容易なステップ配置構造を備えた履帯式旋回作業機に関する。   The present invention relates to a crawler-type swivel working machine, and more particularly, to a crawler-type swivel working machine having a step arrangement structure that allows easy getting on and off an upper revolving body.

履帯を備えた下部走行体の上に上部旋回体を旋回自在に取り付けた、例えば油圧ショベルのような履帯式旋回作業機は、上部旋回体にキャブ、エンジン室、作業装置などを装備している。そして、上部旋回体への、運転、保守点検などの際の乗降のために、下部走行体の走行フレームの外側面には、足場であるステップが備えられている(例えば、特許文献1参照)。
特開平8−72615号公報(第1図)
A crawler-type turning work machine such as a hydraulic excavator, in which an upper turning body is pivotably mounted on a lower traveling body having a crawler belt, is equipped with a cab, an engine room, a work device, and the like. . And the step which is a scaffold is provided in the outer side surface of the driving | running | working frame of a lower traveling body for boarding / alighting at the time of driving | running | working, a maintenance check, etc. to an upper revolving body (for example, refer patent document 1). .
JP-A-8-72615 (FIG. 1)

従来の履帯式旋回作業機には、上述したとおりの乗降用のステップに関して、次のとおりの解決すべき課題がある。   The conventional crawler-type turning work machine has the following problems to be solved with respect to the steps for getting on and off as described above.

図4を参照して説明する。すなわち、図4(a)に示すように、狭隘な現場、例えばトンネル内、住宅地などにおいて、作業機の履帯の両外側に壁面、障害物などが存在する場合、ステップを利用することができず上部旋回体への乗降が困難である。   This will be described with reference to FIG. That is, as shown in FIG. 4 (a), when there are wall surfaces, obstacles, etc. on both outer sides of the crawler track of a work machine in a narrow site such as a tunnel or a residential area, the step can be used. It is difficult to get on and off the upper swing body.

図4(b)に示すように、作業機を輸送のためにトレーラの荷台の上に載せた場合、トレーラの幅は作業機の履帯の外側幅と略同じであるので、地上から下部走行体のステップまでの高さが高くなり、ステップを乗降に利用することができず上部旋回体への乗降が困難である。   As shown in FIG. 4 (b), when the work implement is placed on the trailer bed for transportation, the trailer has substantially the same width as the outer width of the track of the work implement. The height to the step becomes high, and the step cannot be used for getting on and off, and it is difficult to get on and off the upper swing body.

図4(c)に示すように、作業機の両側方が乗降用に解放されていても、軸線Zを中心に旋回する上部旋回体が下部走行体に対し不特定の斜め旋回位置に位置付けられている場合には、ステップを利用して上部旋回体に乗降する場合、上部旋回体に備えられ身体を支え乗降を補助するハンドルに手が届きにくくなることがあり、上部旋回体への乗降が困難になる。   As shown in FIG. 4 (c), even if both sides of the work implement are released for getting on and off, the upper turning body turning around the axis Z is positioned at an unspecified oblique turning position with respect to the lower traveling body. When using the step to get on and off the upper swing body, it may be difficult to reach the handle provided to the upper swing body to support the body and assist getting on and off. It becomes difficult.

本発明は上記事実に鑑みてなされたもので、その技術的課題は、履帯式の下部走行体の上に上部旋回体を備えた履帯式旋回作業機における上部旋回体への乗降を、機体の置かれた位置、上部旋回体の旋回位置などにかかわらず、容易に行なうことができるステップ配置構造を備えた履帯式旋回作業機を提供することである。   The present invention has been made in view of the above-mentioned facts, and its technical problem is that the crawler-type swivel working machine provided with the upper-part turning body on the crawler-type lower-part traveling body, It is an object of the present invention to provide a crawler-type turning work machine having a step arrangement structure that can be easily performed regardless of the placed position, the turning position of the upper turning body, and the like.

本発明によれば上記技術的課題を解決する履帯式旋回作業機として、履帯が捲回された左右一対の走行フレームを有する下部走行体およびこの下部走行体上に旋回自在に取り付けた上部旋回体を備え、一対の走行フレームそれぞれが、互いに対向する内側面および下部走行体の外側に位置する外側面それぞれに1個以上の上部旋回体への乗降用のステップを備えている、ことを特徴とする履帯式旋回作業機が提供される。   According to the present invention, as a crawler-type turning work machine that solves the above technical problem, a lower traveling body having a pair of left and right traveling frames around which the crawler belt is wound, and an upper revolving body that is pivotably attached on the lower traveling body Each of the pair of traveling frames has a step for getting on and off one or more upper revolving bodies on each of the inner side surface facing each other and the outer side surface located outside the lower traveling body. A crawler-type turning work machine is provided.

好適には、上部旋回体の外縁に位置したキャブの前面に、ステップを利用した上部旋回体への乗降を補助するハンドルを備えている。走行フレームの内側面のステップは、走行フレームに設けた、スプロケット駆動体のモーターカバーに備えてもよい。   Preferably, the front surface of the cab located at the outer edge of the upper swing body is provided with a handle for assisting getting on and off the upper swing body using a step. The step on the inner surface of the traveling frame may be provided in the motor cover of the sprocket driving body provided on the traveling frame.

本発明に従って構成された履帯式旋回作業機は、下部走行体の一対の走行フレームそれぞれが内側面および外側面に1個以上の上部旋回体への乗降用のステップを備えている。したがって、作業機の側方からの上部旋回体への乗降が困難な場合には、走行フレームの内側面に備えたステップを利用することにより、上部旋回体への乗降を容易に行なうことができる。   In the crawler-type turning work machine configured in accordance with the present invention, each of the pair of traveling frames of the lower traveling body includes one or more steps for getting on and off the upper revolving body on the inner surface and the outer surface. Therefore, when it is difficult to get on and off the upper revolving structure from the side of the work implement, it is possible to easily get on and off the upper revolving structure by using the steps provided on the inner surface of the traveling frame. .

以下、本発明に従って構成された履帯式旋回作業機について、代表的な履帯式旋回作業機である油圧ショベルにおける好適実施形態を図示している添付図面を参照して、さらに詳細に説明する。   Hereinafter, a crawler-type turning work machine configured in accordance with the present invention will be described in more detail with reference to the accompanying drawings illustrating a preferred embodiment of a hydraulic excavator that is a typical crawler-type turning work machine.

図1を参照して説明する。全体を番号2で示す油圧ショベルは、下部走行体4と、下部走行体4上に鉛直軸線Zを中心に旋回自在に取り付けた上部旋回体6を備えている。上部旋回体6は、運転室であるキャブ6a、エンジン室6b、作業腕装置6cなどを備えている。   A description will be given with reference to FIG. The hydraulic excavator generally indicated by reference numeral 2 includes a lower traveling body 4 and an upper revolving body 6 that is mounted on the lower traveling body 4 so as to be pivotable about a vertical axis Z. The upper swing body 6 includes a cab 6a, an engine room 6b, a work arm device 6c, and the like as a driver's cab.

下部走行体4は、下部走行体フレーム8を備え、下部走行体フレーム8は左右一対の実質上対称に形成された走行フレーム10a、10bを有している。走行フレーム10a、10bそれぞれには、履帯12が駆動自在に捲回されている。   The lower traveling body 4 includes a lower traveling body frame 8, and the lower traveling body frame 8 includes a pair of left and right traveling frames 10a and 10b formed substantially symmetrically. A crawler belt 12 is wound around each of the traveling frames 10a and 10b so as to be driven.

図1とともに図2を参照して説明する。下部走行体フレーム8の一対の走行フレーム10a、10bは、上部旋回体6を旋回自在に支持するセンターフレーム10cの両側に取り付けられている。走行フレーム10a、10bは、長手方向X(図2の左右方向)の一側(図2の右側)に、履帯12が捲回されその回動を案内するアイドラの二股状の取付部Fを、他側(図2の左側)に履帯12が捲回されその回動を駆動するスプロケット駆動体16用の、センターフレーム10c側から延びた取付部Rを備えている。取付部Rは、走行フレームの内側面M側に着脱自在なモーターカバー18を備えている。走行フレーム10a、10bの、取付部Fと取付部Rの間は略矩形の断面に形成されている。   2 will be described with reference to FIG. A pair of traveling frames 10a and 10b of the lower traveling body frame 8 are attached to both sides of a center frame 10c that supports the upper revolving body 6 so as to be able to swivel. The traveling frames 10a and 10b have a bifurcated mounting portion F of an idler on which one side (right side in FIG. 2) of the longitudinal direction X (right and left in FIG. 2) is wound to guide the rotation of the crawler belt 12. The crawler belt 12 is wound on the other side (left side in FIG. 2), and a mounting portion R extending from the center frame 10c side is provided for the sprocket drive body 16 that drives its rotation. The attachment portion R includes a detachable motor cover 18 on the inner surface M side of the traveling frame. Between the attachment part F and the attachment part R of travel frame 10a, 10b, it forms in the substantially rectangular cross section.

一対の走行フレーム10a、10bそれぞれは、互いに対向する内側面Mおよび下部走行体4の外側に位置する外側面Nそれぞれに、上部旋回体6への乗降用の、実質上同一形状のステップSを2個、長手方向Xにおける取付部F側および取付部R側に備えている。   Each of the pair of traveling frames 10a and 10b has a step S having substantially the same shape for getting on and off the upper swing body 6 on each of the inner surface M and the outer surface N located outside the lower traveling body 4 facing each other. Two are provided on the attachment portion F side and the attachment portion R side in the longitudinal direction X.

ステップSの形状は、足場として機能することができる周知のものでよく、例えば比較的厚い帯鋼板を、長手方向の両端を同じ方向に折り曲げ、開口端それぞれを外側面Nあるいは内側面Mに溶接などによって固着し、上縁に滑り止めの凹凸を備えるようにする。   The shape of step S may be a well-known one that can function as a scaffold. For example, a relatively thick steel strip is bent at both ends in the longitudinal direction in the same direction, and each open end is welded to the outer surface N or the inner surface M. For example, the upper edge should have anti-slip irregularities.

ステップSの長手方向Xにおける設置位置は、作業機(油圧ショベル2)の機体の大きさなどに応じて、上部旋回体6への乗降がしやすい位置に設定される。実施例においては内側面Mおよび外側面NのステップSは実質上同じ位置に配設されているが、走行フレーム10aの内側面Mの取付部F側および走行フレーム10bの内側面Mの取付部R側のステップSは、上部旋回体6のキャブ6aの位置に関連させて、また上部旋回体6が旋回したときのキャブ6aの位置に関連させて、外側面NのステップSの位置とは異なった位置に設置されている。   The installation position of the step S in the longitudinal direction X is set to a position where the upper swing body 6 can be easily boarded and exited according to the size of the machine body of the work machine (hydraulic excavator 2). In the embodiment, the step S of the inner side surface M and the outer side surface N is disposed at substantially the same position, but the mounting portion F side of the inner side surface M of the traveling frame 10a and the mounting portion of the inner side surface M of the traveling frame 10b. The step S on the R side is related to the position of the cab 6a of the upper swing body 6 and is related to the position of the cab 6a when the upper swing body 6 is swung. It is installed at different positions.

上部旋回体6に備えたキャブ6aは、上部旋回体6の外縁に位置した前面の下部に、ステップSを利用した上部旋回体6への乗降を補助する水平方向に延びた、ハンドル14を備えている。   The cab 6 a provided in the upper swing body 6 includes a handle 14 that extends in the horizontal direction to assist in getting on and off the upper swing body 6 using the step S at the lower part of the front surface located at the outer edge of the upper swing body 6. ing.

上述したとおりの履帯式旋回作業機2の作用効果について説明する。 The effect of the crawler-type turning work machine 2 as described above will be described.

本発明に従って構成された履帯式旋回作業機2は、下部走行体4の一対の走行フレーム10a、10bそれぞれが内側面Mおよび外側面Nに1個以上の上部旋回体6への乗降用のステップSを備えている。したがって、図4によって説明したように、作業機2の側方からの上部旋回体6への乗降が困難な場合には、走行フレーム10a、10bの内側面Mに備えたステップSを利用することにより、上部旋回体6への乗降を容易に行なうことができる。   In the crawler-type turning work machine 2 configured according to the present invention, the pair of traveling frames 10a and 10b of the lower traveling body 4 has steps for getting on and off the one or more upper revolving bodies 6 on the inner surface M and the outer surface N, respectively. S is provided. Therefore, as described with reference to FIG. 4, when it is difficult to get on and off the upper swing body 6 from the side of the work implement 2, the step S provided on the inner surface M of the traveling frames 10 a and 10 b should be used. Thus, it is possible to easily get on and off the upper swing body 6.

また、上部旋回体6の外縁に位置したキャブ6aの前面に、ステップSを利用した上部旋回体6への乗降を補助するハンドル14を備えている。したがって、ハンドル14およびステップSを利用して、上部旋回体6への乗降をより容易に行うことができる。   In addition, a handle 14 is provided on the front surface of the cab 6 a located at the outer edge of the upper swing body 6 to assist in getting on and off the upper swing body 6 using step S. Therefore, it is possible to more easily get on and off the upper swing body 6 using the handle 14 and the step S.

以上、本発明を実施例に基づいて詳細に説明したが、本発明は上記の実施例に限定されるものではなく、例えば下記のように、本発明の範囲内においてさまざまな変形あるいは修正ができるものである。   The present invention has been described in detail based on the embodiments. However, the present invention is not limited to the above-described embodiments, and various changes or modifications can be made within the scope of the present invention, for example, as described below. Is.

本発明の実施の形態においては、上部旋回体6への乗降用のステップSは、一対の走行フレーム10a、10bの内側面Mおよび外側面Nそれぞれに2個備えられているが、履帯式旋回作業機の大きさ、形態などに応じて、それぞれ1個であってもよい。また、内側面Mおよび外側面Nで設置する個数を変えてもよい。   In the embodiment of the present invention, two steps S for getting on and off the upper swing body 6 are provided on each of the inner side surface M and the outer side surface N of the pair of traveling frames 10a and 10b. There may be one each according to the size and form of the work implement. In addition, the number of the inner surface M and the outer surface N may be changed.

本発明の実施の形態における一対の走行フレーム10a、10bの内側面Mのスプロケット駆動体16取付部R側に備えたステップSを、履帯式旋回作業機の大きさ、形態などに応じて、図2に二点鎖線で図3に実線で示すように、取付部Rの、ボルト20によって着脱自在に取り付けられたモーターカバー18に備えてもよい。モーターカバー18は、着脱が自在であるので、モーターカバー18を取り外した状態で容易にステップSを設置できる。   The step S provided on the sprocket driving body 16 mounting portion R side of the inner side surface M of the pair of traveling frames 10a, 10b in the embodiment of the present invention is illustrated in accordance with the size and form of the crawler-type turning work machine. As shown by a two-dot chain line 2 in FIG. 3 and a solid line in FIG. 3, the motor cover 18 of the mounting portion R that is detachably attached by a bolt 20 may be provided. Since the motor cover 18 is detachable, the step S can be easily installed with the motor cover 18 removed.

本発明の実施の形態においては、上部旋回体6の外縁に位置したキャブ6aの前面の下部に、ステップSを利用した上部旋回体6への乗降を補助する水平方向に延びたハンドル14を備えている。このハンドルは乗降を補助するものであれば必ずしも水平のものでなくてもよく、キャブ6aの前面の柱に縦方向に取り付けたものでもよい。   In the embodiment of the present invention, a horizontally extending handle 14 is provided at the lower portion of the front surface of the cab 6a located at the outer edge of the upper swing body 6 to assist in getting on and off the upper swing body 6 using step S. ing. The handle may not necessarily be horizontal as long as it assists getting on and off, and may be vertically attached to a column on the front surface of the cab 6a.

本発明に従って構成された履帯式旋回作業機を(a)斜め前方から見た斜視図および(b)上方から見た構成説明図。BRIEF DESCRIPTION OF THE DRAWINGS (a) The perspective view which looked at the crawler-type turning working machine comprised according to this invention from diagonally forward, (b) The structure explanatory drawing seen from upper direction. 図1に示す履帯式旋回作業機の下部走行体の要部の構成説明平面図。The structure explanatory top view of the principal part of the lower traveling body of the crawler-type turning working machine shown in FIG. 図2のY矢印方向に見て、ステップが設置されたモーターカバーの部分を示した拡大斜視図。The enlarged perspective view which showed the part of the motor cover in which the step was installed seeing in the Y arrow direction of FIG. 従来の履帯式旋回作業機の問題の説明図。Explanatory drawing of the problem of the conventional crawler-type turning work machine.

符号の説明Explanation of symbols

2:油圧ショベル(履帯式旋回作業機)
4:下部走行体
6:上部旋回体
6a:キャブ
10a、10b:走行フレーム
12:履帯
14:ハンドル
16:スプロケット駆動体
18:モーターカバー
M:内側面
N:外側面
S:ステップ
2: Excavator (Crawler-type turning work machine)
4: Lower traveling body 6: Upper revolving body 6a: Cab 10a, 10b: Traveling frame 12: Crawler belt 14: Handle 16: Sprocket drive 18: Motor cover M: Inner surface N: Outer surface S: Step

Claims (3)

履帯が捲回された左右一対の走行フレームを有する下部走行体およびこの下部走行体上に旋回自在に取り付けた上部旋回体を備え、
一対の走行フレームそれぞれが、
互いに対向する内側面および下部走行体の外側に位置する外側面それぞれに1個以上の上部旋回体への乗降用のステップを備えている、
ことを特徴とする履帯式旋回作業機。
A lower traveling body having a pair of left and right traveling frames wound with crawler belts, and an upper revolving body attached to the lower traveling body so as to be freely rotatable;
Each pair of travel frames
Steps for getting on and off one or more upper revolving units are provided on each of the inner side surface facing each other and the outer side surface located outside the lower traveling unit,
A crawler-type turning work machine characterized by that.
走行フレームの内側面のステップが、
走行フレームに設けた、スプロケット駆動体のモーターカバーに備えられている、
ことを特徴とする請求項1記載の履帯式旋回作業機。
The steps on the inner surface of the running frame
Provided in the motor cover of the sprocket drive body provided on the traveling frame,
The crawler-type turning work machine according to claim 1.
上部旋回体の外縁に位置したキャブの前面に、ステップを利用した上部旋回体への乗降を補助するハンドルを備えている、
ことを特徴とする請求項1または2記載の履帯式旋回作業機。
The front of the cab located at the outer edge of the upper swing body is provided with a handle that assists in getting on and off the upper swing body using steps.
The crawler-type turning work machine according to claim 1 or 2, wherein
JP2006287217A 2006-10-23 2006-10-23 Crawler type revolving working machine Pending JP2008106430A (en)

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Country Link
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422553A (en) * 1987-07-17 1989-01-25 Toyo Ink Mfg Co Registering device for printer
JPH0920175A (en) * 1995-07-04 1997-01-21 Nippon Sharyo Seizo Kaisha Ltd Installing structure of getting on and off step
JPH09111809A (en) * 1995-10-16 1997-04-28 Hitachi Constr Mach Co Ltd Step device for ascending and descending crawler type vehicle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422553A (en) * 1987-07-17 1989-01-25 Toyo Ink Mfg Co Registering device for printer
JPH0920175A (en) * 1995-07-04 1997-01-21 Nippon Sharyo Seizo Kaisha Ltd Installing structure of getting on and off step
JPH09111809A (en) * 1995-10-16 1997-04-28 Hitachi Constr Mach Co Ltd Step device for ascending and descending crawler type vehicle

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