JPH1018351A - Operator cab of construction machine - Google Patents

Operator cab of construction machine

Info

Publication number
JPH1018351A
JPH1018351A JP8192854A JP19285496A JPH1018351A JP H1018351 A JPH1018351 A JP H1018351A JP 8192854 A JP8192854 A JP 8192854A JP 19285496 A JP19285496 A JP 19285496A JP H1018351 A JPH1018351 A JP H1018351A
Authority
JP
Japan
Prior art keywords
window
skylight
driving device
window frame
ceiling
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.)
Pending
Application number
JP8192854A
Other languages
Japanese (ja)
Inventor
Makoto Sasaki
誠 佐々木
Haruhide Namura
晴秀 名村
Masanori Sogawa
正典 十川
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.)
Komatsu Ltd
Original Assignee
Komatsu 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 Komatsu Ltd filed Critical Komatsu Ltd
Priority to JP8192854A priority Critical patent/JPH1018351A/en
Publication of JPH1018351A publication Critical patent/JPH1018351A/en
Pending legal-status Critical Current

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  • Component Parts Of Construction Machinery (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve forward visibility, and sufficiently confirm a bucket at work time by forming a window part by extending and projecting the front edge of a skylight arranged in the ceiling of a cab of a construction machine to the side of a wipe driving device. SOLUTION: A skylight 6 freely openable and closable by a hinge is arranged in the lengthwise direction of a ceiling part 1a of an operator cab 1 of a construction machine, and a window part 6a is formed on the side of a wiper driving device 5 arranged in an upper window frame of a front window by extending and projecting a front end part of the skylight 6. When the wiper driving device 5 is arranged in the upper window frame, a width of left and right window frames can be thinned to the extent allowable in design, and since the front window can be enlarged, forward visibility is improved. The window part 6a of the skylight 6 can also be arranged up to the forefront end part, and since a bucket at work time can be sufficiently confirmed without hindering a field of view by the wipe driving device 5, work can be safely performed.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、油圧ショベル等の
建設機械のオペレータキャブの天井部に配設される天窓
に係り、特に天井部の前端部に天窓の突出する窓部と、
ワイパ駆動装置とを配設する建設機械のオペレータキャ
ブに関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a skylight provided on a ceiling of an operator cab of a construction machine such as a hydraulic excavator, and more particularly to a window having a skylight projecting from a front end of the ceiling.
The present invention relates to an operator cab of a construction machine provided with a wiper driving device.

【0002】[0002]

【従来の技術】油圧ショベル等の建設機械のオペレータ
キャブの天窓の構造として、例えば、出願人は実開平5
−47057号を出願している。この出願内容は、図4
に示すように、キャブ21に設けた天窓22を前部23
から中間部24までの一定幅の四角22aと、中間部2
4から後部25までの台形部22bとに形成し、後部2
5をキャブ21内のオペレータが最も後退した図示しな
い作業機のバケットが見える位置として幅を狭くすると
共に、後部25と、中間部24に至る斜線部26との境
界を大きな円弧とした構成が記載されている。
2. Description of the Related Art As a structure of a skylight of an operator cab of a construction machine such as a hydraulic excavator, the applicant has disclosed, for example,
-47057. The contents of this application are shown in FIG.
As shown in FIG.
A square 22a having a constant width from the middle part 24 to the middle part 24;
4 to a trapezoidal portion 22b from the rear portion 25 to the rear portion 2b.
5 is a position in which the operator of the cab 21 can see the bucket of the work machine (not shown) most retreated, the width of which is reduced, and the boundary between the rear portion 25 and the hatched portion 26 reaching the intermediate portion 24 is a large arc. Have been.

【0003】また、図5に示す、オペレータキャブ31
の天井31aの前部には天窓32が配設されている。こ
の構成は、前窓33の上端部から延長して天窓32が配
設する構成となっており、前窓を払拭するワイパ34の
ワイパ駆動装置35は窓枠(前柱とも言う。)33aに
配設している。
An operator cab 31 shown in FIG.
A skylight 32 is provided at the front of the ceiling 31a. In this configuration, the skylight 32 extends from the upper end of the front window 33, and the wiper driving device 35 of the wiper 34 for wiping the front window is provided on a window frame (also referred to as a front pillar) 33a. It is arranged.

【0004】ところで、オペレータキャブは、オペレー
タから見て前方、上方、側方の視界性の向上、また、オ
ペレータキャブの剛性があって、しかも軽量であること
等があげられる。図5に示すように、前窓33の上端部
から延長して天窓32が配設する構成にすると、前方、
上方の視界性は向上するが、キャブとしては窓枠33a
から天井31aにわたっての剛性をアップする必要があ
る。また、従来のオペレータキャブの前窓を払拭するワ
イパのワイパ駆動装置は、図5に示すように、窓枠33
aに配設されている。このため、オペレータがキャブ内
から前方をみると、ワイパ駆動装置やワイヤハーネス等
が視界を妨げることになり、しかもワイパ駆動装置を装
着するために、窓枠33aは一定幅を確保する必要があ
る。これにより、前窓33の占有面積が狭くなることに
なる。したがって、特に、油圧ショベルの作業機のバケ
ットが見易いように、前窓を広くして、作業機が揺動し
てバケットが上方に持ち上がったときは、天窓から容易
にバケット確認できるようにする必要がある。
By the way, the operator cab has improved visibility in the forward, upward, and lateral directions as viewed from the operator, and the cab is rigid and lightweight. As shown in FIG. 5, when the skylight 32 is arranged so as to extend from the upper end of the front window 33,
The visibility of the upper part is improved, but the cab is a window frame 33a.
It is necessary to increase the rigidity from the ceiling to the ceiling 31a. A conventional wiper driving device for wiping a front window of an operator cab has a window frame 33 as shown in FIG.
a. For this reason, when the operator looks forward from inside the cab, the wiper driving device, the wire harness, and the like obstruct the field of view, and the window frame 33a needs to have a certain width in order to mount the wiper driving device. . As a result, the area occupied by the front window 33 is reduced. Therefore, in particular, it is necessary to widen the front window so that the bucket of the working machine of the hydraulic shovel is easy to see, so that the bucket can be easily confirmed from the skylight when the working machine swings and the bucket is lifted upward. There is.

【0005】[0005]

【発明が解決しようとする課題】しかしながら、図4に
示す、実開平5−47057号の天窓構成では、日射量
を制限するためには有用であつても、上方の視界性とし
ては問題がある。また、図4,図5に示すオペレータキ
ャブは、いずれも前窓を払拭するワイパのワイパ駆動装
置は、窓枠に配設されているため、前述の如く、窓枠は
一定幅を確保すると前窓の占有面積が狭くなり前方の視
界性が悪くなる。
However, the skylight configuration of Japanese Utility Model Laid-Open No. 5-47057 shown in FIG. 4 has a problem in the visibility above when it is useful for limiting the amount of solar radiation. . In the operator cabs shown in FIGS. 4 and 5, the wiper driving device of the wiper for wiping the front window is disposed on the window frame. The occupied area of the window is reduced, and visibility in the front is deteriorated.

【0006】本発明は上記従来の問題点に着目し、天窓
の右前端部が突出する形状として、作業機が上方に揺動
してバケットが持ち上がったときでも十分確認できるよ
うにすると共に、この天窓の右前端部の近傍にワイパ駆
動装置を配設する建設機械のオペレータキャブの天窓を
提供することを目的とする。
The present invention pays attention to the above-mentioned conventional problems, and has a shape in which the right front end of the skylight projects so that the work implement can be sufficiently checked even when the work equipment swings upward and the bucket is lifted. An object of the present invention is to provide a skylight of an operator cab of a construction machine in which a wiper driving device is disposed near a right front end of a skylight.

【0007】[0007]

【課題を解決するための手段および作用効果】上記目的
を達成するため、本発明に係る建設機械のオペレータキ
ャブの第1発明は、前窓を囲む窓枠と、天窓を設ける天
井部と、ドアや側壁等から形成される建設機械のオペレ
ータキャブにおいて、前記前窓2の上部窓枠2aに配設
されるワイパー駆動装置5と、このワイパー駆動装置5
の側方に延在して突出する窓部6aを有し、かつ、前記
天井部1aの長手方向に配設された天窓6とを設けた構
成としたものである。上記構成によれば、作業機が上方
に揺動してバケットがオペレータキャブ1の天井部1a
より上方に持ち上がっても、天窓6の突出する窓部6a
から確認できる。また、ワイパー駆動装置5を上部窓枠
2aに配設したことにより、従来のように、左窓枠にワ
イパー駆動装置を配設した構造に比べて左窓枠(および
右窓枠)の幅を強度上許される限り薄くすることができ
る。これにより、前窓の占有面積を大きくすることがで
きる。したがって、天窓6の突出する窓部6aから作業
中のバケットが十分確認することが可能であり、また、
前窓を大きくすることができるので上方、前方の視界性
が良く、安全に作業が可能となる。
To achieve the above object, a first invention of an operator cab for a construction machine according to the present invention comprises a window frame surrounding a front window, a ceiling provided with a skylight, and a door. In an operator cab of a construction machine formed of a side wall and the like, a wiper driving device 5 disposed on the upper window frame 2a of the front window 2, and the wiper driving device 5
And a window 6a extending and protruding to the side of the ceiling 1a, and a ceiling window 6 arranged in the longitudinal direction of the ceiling 1a. According to the above configuration, the work implement swings upward and the bucket is moved to the ceiling 1 a
The window 6a protrudes from the skylight 6 even if it is lifted upward.
Can be confirmed from. Further, by arranging the wiper driving device 5 on the upper window frame 2a, the width of the left window frame (and the right window frame) can be reduced as compared with the conventional structure in which the wiper driving device is disposed on the left window frame. It can be made as thin as strength permits. Thereby, the occupation area of the front window can be increased. Therefore, it is possible to sufficiently confirm the bucket in operation from the window 6a protruding from the skylight 6.
Since the front window can be enlarged, the visibility in the upper and forward directions is good, and work can be performed safely.

【0008】[0008]

【発明の実施の形態】以下に、本発明に係る建設機械の
オペレータキャブについての一実施例を図1乃至図3に
より説明する。先ず、図1に示す、オペレータキャブ1
の前窓2は、上部窓枠2a,右窓枠2b,左窓枠2cお
よび下部窓枠2dにより囲むようにして配設されてい
る。この上部窓枠2aにはワイパーモータ等からなるワ
イパ駆動装置5が配設されている。このワイパ駆動装置
5の駆動によりワイパー4が前窓2を払拭するようにな
っている。この図1のZ視図を図2により説明する。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of an operator cab of a construction machine according to the present invention will be described below with reference to FIGS. First, an operator cab 1 shown in FIG.
Is arranged so as to be surrounded by an upper window frame 2a, a right window frame 2b, a left window frame 2c, and a lower window frame 2d. The upper window frame 2a is provided with a wiper driving device 5 including a wiper motor and the like. The drive of the wiper driving device 5 causes the wiper 4 to wipe the front window 2. The Z view of FIG. 1 will be described with reference to FIG.

【0009】図2に示すように、オペレータキャブ1は
天井部1aを設けている。天窓6の前端部には突出する
窓部6aが設けられている。図1に示す前窓2の上部窓
枠2aにワイパー駆動装置5が配設されている。図2に
示すように、ワイパー駆動装置5の側方に延在して突出
する窓部(6a)を有する天窓6が天井部(1a)の長手方向に
配設されている。この天窓6はヒンジ7により開閉自在
となっている。このように、天窓6の前端部に突出する
窓部6aから作業機のバケットが容易に確認できるよう
になっている。また、ワイパー駆動装置5が前方及び上
方の視界を妨げないように天窓6の突出する窓部6aの
側方に配設されている。図2のA−A断面を図3により
説明する。
As shown in FIG. 2, the operator cab 1 has a ceiling 1a. At the front end of the skylight 6, a protruding window 6a is provided. A wiper driving device 5 is disposed on an upper window frame 2a of the front window 2 shown in FIG. As shown in FIG. 2, a skylight 6 having a window 6a extending and protruding to the side of the wiper driving device 5 is provided in the longitudinal direction of the ceiling 1a. The skylight 6 can be freely opened and closed by a hinge 7. In this manner, the bucket of the working machine can be easily confirmed from the window 6a projecting from the front end of the skylight 6. In addition, the wiper driving device 5 is disposed on the side of the window 6a from which the skylight 6 projects so as not to obstruct the front and upper visibility. A section taken along line AA of FIG. 2 will be described with reference to FIG.

【0010】図3に示すように、ワイパー駆動装置5は
上部窓枠2aの運転室内側の突出を最小限にしてコンパ
クトに構成されており、上面部を天井部1aのより上方
に突出させたボックス10内に収納されている。このワ
イパー駆動装置5の駆動により駆動軸5aに連結するワ
イパ4のワイパアーム4aが作動して前記前窓2を払拭
するようになっている。このようにワイパー駆動装置5
はコンパクトに構成されているので視界を妨げることは
ない。
As shown in FIG. 3, the wiper driving device 5 is configured to be compact by minimizing the protrusion of the upper window frame 2a on the driver's cab side, and has an upper surface protruding above the ceiling 1a. It is stored in a box 10. When the wiper driving device 5 is driven, the wiper arm 4a of the wiper 4 connected to the drive shaft 5a operates to wipe the front window 2. Thus, the wiper driving device 5
Is so compact that it does not obstruct the view.

【0011】このようなオペレータキャブによれば、作
業機が上方に揺動してバケットがオペレータキャブ1の
天井部1aより上方に持ち上がっても、天窓6の前端部
の突出する窓部6aから十分確認できるようになってい
る。また、ワイパー駆動装置5を上部窓枠2aに配設し
たことにより、従来のオペレータキャブのように、左窓
枠にワイパー駆動装置を配設した構造に比べて左窓枠
(および右窓枠)の幅を強度上許される限り薄くするこ
とができ、前窓2を大きくすることができるので前方の
視界性が良い。さらに、天窓6の突出する窓部6aが最
前端部まで配置することが可能となり、ワイパー駆動装
置5による視界を妨げることがなく、天窓6の突出する
窓部6aから作業中のバケットが十分確認でるので視界
性が良く、安全に作業が可能となる。
According to such an operator cab, even if the work implement swings upward and the bucket is lifted above the ceiling 1a of the operator cab 1, the operator can sufficiently move the bucket through the window 6a projecting from the front end of the skylight 6. You can check it. Further, by disposing the wiper driving device 5 on the upper window frame 2a, the left window frame (and the right window frame) is compared with a structure in which the wiper driving device is disposed on the left window frame like a conventional operator cab. Can be made as thin as possible in terms of strength, and the front window 2 can be enlarged, so that the visibility in the front is good. Further, the window 6a protruding from the skylight 6 can be disposed to the foremost end, so that the field of view by the wiper driving device 5 is not obstructed, and the bucket being worked can be sufficiently confirmed from the window 6a protruding from the skylight 6. Therefore, visibility is good and work can be performed safely.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の建設機械のオペレータキャブの正面図
である。
FIG. 1 is a front view of an operator cab of a construction machine according to the present invention.

【図2】同、図1のZ視図である。FIG. 2 is a Z view of FIG. 1;

【図3】同、図2のA−A断面図である。FIG. 3 is a sectional view taken along line AA of FIG. 2;

【図4】従来のオペレータキャブを説明する図である。FIG. 4 is a diagram illustrating a conventional operator cab.

【図5】従来の他のオペレータキャブを説明する図であ
る。
FIG. 5 is a diagram illustrating another conventional operator cab.

【符号の説明】[Explanation of symbols]

1 オペレータキャブ 1a 天井部 2 前窓 2a 上部窓枠 2b 右窓枠 2c 左窓枠 2d 下部窓枠 4 ワイパ 5 ワイパ駆動装置 6 天窓 6a 突出する窓部(天窓) DESCRIPTION OF SYMBOLS 1 Operator cab 1a Ceiling part 2 Front window 2a Upper window frame 2b Right window frame 2c Left window frame 2d Lower window frame 4 Wiper 5 Wiper drive device 6 Skylight 6a Projecting window (skylight)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 前窓を囲む窓枠と、天窓を設ける天井部
と、ドアや側壁等から形成される建設機械のオペレータ
キャブにおいて、前記前窓(2) の上部窓枠(2a)に配設さ
れるワイパー駆動装置(5) と、このワイパー駆動装置
(5) の側方に延在して突出する窓部(6a)を有し、かつ、
前記天井部(1a)の長手方向に配設された天窓(6) とを設
けたことを特徴とする建設機械のオペレータキャブ。
In an operator cab of a construction machine formed of a window frame surrounding a front window, a ceiling provided with a skylight, doors and side walls, etc., the window is disposed on an upper window frame (2a) of the front window (2). Wiper drive (5) to be installed and this wiper drive
(5) has a window portion (6a) extending to the side of and protruding, and
A skylight (6) disposed in a longitudinal direction of the ceiling (1a).
JP8192854A 1996-07-02 1996-07-02 Operator cab of construction machine Pending JPH1018351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8192854A JPH1018351A (en) 1996-07-02 1996-07-02 Operator cab of construction machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8192854A JPH1018351A (en) 1996-07-02 1996-07-02 Operator cab of construction machine

Publications (1)

Publication Number Publication Date
JPH1018351A true JPH1018351A (en) 1998-01-20

Family

ID=16298083

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8192854A Pending JPH1018351A (en) 1996-07-02 1996-07-02 Operator cab of construction machine

Country Status (1)

Country Link
JP (1) JPH1018351A (en)

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