JP2596647Y2 - Front window wiper actuator for cab of construction machine - Google Patents
Front window wiper actuator for cab of construction machineInfo
- Publication number
- JP2596647Y2 JP2596647Y2 JP1990042749U JP4274990U JP2596647Y2 JP 2596647 Y2 JP2596647 Y2 JP 2596647Y2 JP 1990042749 U JP1990042749 U JP 1990042749U JP 4274990 U JP4274990 U JP 4274990U JP 2596647 Y2 JP2596647 Y2 JP 2596647Y2
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- front window
- supply circuit
- wiper
- washer
- 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.)
- Expired - Fee Related
Links
Landscapes
- Component Parts Of Construction Machinery (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Window Of Vehicle (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は建設機械、殊に油圧式掘削機等の如く前窓が
自動で開閉できるようになっている運転室のワイパー作
動装置であって、特に、前窓開放時、および閉止時には
ワイパ装置およびウオッシャ装置等に作動電源が供給さ
れないようになっている。これにより、前窓開放時およ
び閉止時にはワイパー装置およびウオッシャ装置等が空
作動しないようにした建設機械の運転室の前窓ワイパ作
動装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial application field] The present invention relates to a wiper operating device for a cab in which a front window can be automatically opened and closed, such as a construction machine, particularly a hydraulic excavator. In particular, when the front window is opened and closed, the operating power is not supplied to the wiper device, the washer device and the like. Accordingly, the present invention relates to a front window wiper operating device of a cab of a construction machine in which a wiper device, a washer device, and the like do not idle when the front window is opened and closed.
建設機械の一例として第２図に示す油圧式掘削機の運
転室１は夏場の熱気を避けるため、或いは、作業視界を
よくするために、前窓Ｗが開放可能となっており、この
前窓Ｗの開閉は第３図に示すように、前窓Ｗの把手２を
握り、上方に押上げ前面1aから天井1bの両側面に設けら
れたガイドレール３に沿って天井1b内面に格納されてい
たが、重量の重い前窓Ｗを狭い運動室１内で押上げるに
は相当な力を要することから、本出願人は先に手動に代
る電動による前窓自動開閉装置を特許出願したが、この
前窓自動開閉機構は第４図（Ａ），（Ｂ）により説明す
る。As an example of a construction machine, a cab 1 of a hydraulic excavator shown in FIG. 2 has a front window W that can be opened in order to avoid hot air in summer or to improve work visibility. As shown in FIG. 3, the opening and closing of the W is performed by holding the handle 2 of the front window W and pushing it upward to be stored on the inner surface of the ceiling 1b along the guide rails 3 provided on both sides of the ceiling 1b from the front surface 1a. However, since a considerable force is required to push up the heavy front window W in the narrow exercise room 1, the applicant has previously applied for a patent for an electric front window automatic opening and closing device instead of a manual. The front window automatic opening / closing mechanism will be described with reference to FIGS. 4 (A) and 4 (B).
第４図（Ａ）に示す前窓Ｗの下端両側に先端を連結し
たギャードケーブル4a,4bを天井後部に取設した駆動モ
ータ等の駆動装置８により引き込んで前窓Ｗを開放する
ようになっている。The front windows W are opened by pulling the guard cables 4a and 4b having the ends connected to both lower ends of the front window W shown in FIG. 4 (A) by a driving device 8 such as a driving motor installed at the rear of the ceiling. Has become.
また、第４図（Ｂ）に示す前窓Ｗの下端両側に先端を
連結したギャードケーブル4a,4bを天井後部に取設した
駆動モータ等の駆動装置８により押し出して前窓Ｗを閉
止するようになっている。In addition, the front windows W are closed by pushing out the guard cables 4a and 4b having the ends connected to both lower ends of the front window W shown in FIG. 4 (B) by a driving device 8 such as a driving motor installed at the rear of the ceiling. It has become.
第５図は、上記前窓の自動開閉装置Ｓの構成を示し、
前窓Ｗは、両側に設けられているガイドローラ５が、図
３に示す前面1aから天井1bの両側部に取設されているガ
イドレール３に沿って転動しながら、前記前窓Ｗを開閉
するようになっており、この開閉作動は、前窓Ｗの下端
両側に先端を連結したギャードケーブル4a,4b、これら
ギャードケーブル4a,4bを挿通しているスライドガイド
６、ガイドチューブ７を介して天井1b後部に取着された
駆動装置８を別途設けられた電源スイッチによって引き
押し作動をさせて開閉されるようになっている。FIG. 5 shows the configuration of the automatic opening and closing device S for the front window,
The front window W slides the front window W while the guide rollers 5 provided on both sides roll along the guide rails 3 provided on both sides of the ceiling 1b from the front surface 1a shown in FIG. The opening and closing operation is performed by a gad cable 4a, 4b having a distal end connected to both lower ends of the front window W, a slide guide 6 through which the gad cables 4a, 4b are inserted, and a guide tube 7 The drive unit 8 attached to the rear of the ceiling 1b is opened and closed by a push / pull operation by a power switch provided separately.
しかしながら、図５に示す前窓Ｗには視界を鮮明にす
るためにワイパ装置９が装着されているが、前窓開閉時
にはワイパブレード9aが邪魔になるために、ワイパ装置
がOFFの時は、前窓Ｗから外れた側柱1c位置に停止し、
開閉作動に支障ないようになっている。However, the front window W shown in FIG. 5 is provided with a wiper device 9 for sharpening the field of view. However, when the front window is opened and closed, the wiper blade 9a is in the way. Stop at the side pillar 1c position off the front window W,
It does not hinder the opening and closing operation.
ところが、前窓の手動開閉に対し自動開閉において
は、駆動装置８の電源回路とワイパ電源回路が独立回路
であると、ワイパ装置９の作動時に誤って前窓Ｗの開閉
スイッチをON操作すると前窓Ｗにワイパ装置９が接触し
て破損する。However, in the automatic opening / closing operation of the front window W as opposed to the manual opening / closing of the front window, if the power supply circuit of the driving device 8 and the wiper power supply circuit are independent circuits, if the opening / closing switch of the front window W is erroneously turned on when the wiper device 9 is operated, the previous operation is performed. The wiper device 9 comes into contact with the window W and is broken.
または、前窓「開」時または前窓「閉」時にワイパ装
置９を作動させると、ワイパ装置９のブレード9a,アー
ム9bがガラス面のないところを空作動することになる。Alternatively, when the wiper device 9 is operated when the front window is “opened” or when the front window is “closed”, the blade 9a and the arm 9b of the wiper device 9 are idled when there is no glass surface.
これにより、ワイパ装置９のブレード9a,アーム9bが
前窓Ｗ等に接触して曲りや、損傷するという問題が発生
する。This causes a problem that the blade 9a and the arm 9b of the wiper device 9 are bent or damaged by contacting the front window W or the like.
本考案は、かかる不具合を解消する目的でなされたも
ので、前窓自動開閉装置の電源回路かワイパ装置の電源
回路、及びウオッシャ装置の電源回路の共通の電源回路
かのいずれかを選択する第１選択手段と、前記共通の電
源回路の下流にはワイパ装置の電源回路またはウオッシ
ャ装置の電源回路のいずれかを選択する第２選択手段と
を用いて、前窓自動開閉装置の電源回路を選択するとき
は、ワイパ装置の電源回路またはウオッシャ装置の電源
回路の通電を遮断し、前窓自動開閉装置の電源回路を選
択しないときは、ワイパ装置の電源回路またはウオッシ
ャ装置の電源回路のいずれかを第２選択手段で選択し、
ワイパ装置またはウオッシャ装置のいずれかを作動する
ようにした建設機械の運転室の前窓ワイパ作動装置を提
供することを目的とする。The present invention has been made for the purpose of solving such a problem, and a power supply circuit of a front window automatic opening / closing device, a power supply circuit of a wiper device, and a power supply circuit of a washer device are selected. A power supply circuit of a front window automatic opening / closing device is selected by using one selection means and a second selection means for selecting one of a power supply circuit of a wiper device and a power supply circuit of a washer device downstream of the common power supply circuit. When the power supply circuit of the wiper device or the power supply circuit of the washer device is turned off, and when the power supply circuit of the front window automatic opening / closing device is not selected, either the power supply circuit of the wiper device or the power supply circuit of the washer device is turned off. Select with the second selection means,
It is an object of the present invention to provide a front window wiper operating device for an operator cab of a construction machine in which either a wiper device or a washer device is operated.
上記目的を達成するために、本願の考案は、建設機械
の運転室の前面から天井内面の格納位置に開閉自在な前
窓と、運転室の側柱に付設されたワイパ装置およびウオ
ッシャ装置と、前記前窓の自動開閉装置とを備えた建設
機械の運転室の前窓ワイパ作動装置において、前窓を自
動開閉する前記前窓自動開閉装置Ｓの電源回路20と、ワ
イパ装置９の電源回路24a、及びウオッシャ装置11の電
源回路24cの共通の電源回路22と、前記前窓自動開閉装
置Ｓの電源回路20かワイパ装置９の電源回路24a、及び
ウオッシャ装置11の電源回路24cの共通の電源回路22か
のいずれかを選択して一方の電源回路を通電状態にし、
他方の電源回路を遮断状態にする第１選択手段21を設け
ると共に、前記共通の電源回路22の下流には前記ワイパ
装置９の電源回路24aまたはウオッシャ装置11の電源回
路24cのいずれかを選択する第２選択手段23を設けてな
り、前記第１選択手段21の操作が前記前窓自動開閉装置
Ｓの電源回路20を選択しないときは、前記ワイパ装置９
の電源回路24aまたはウオッシャ装置11の電源回路24cの
いずれかを通電状態にしてワイパ装置９かまたはウオッ
シャ装置11のいずれかを作動させるよう構成したもので
ある。In order to achieve the above object, the invention of the present application is a front window that can be opened and closed from the front of the cab of a construction machine to a storage position on the inner surface of the ceiling, a wiper device and a washer device attached to a side pillar of the cab, A power circuit 20 for the front window automatic opening / closing device S for automatically opening and closing the front window, and a power circuit 24a for the wiper device 9 in a front window wiper operating device for a cab of a construction machine including the front window automatic opening / closing device. And a common power supply circuit 22 of the power supply circuit 24c of the washer device 11, and a common power supply circuit of the power supply circuit 20a of the front window automatic opening / closing device S or the power supply circuit 24a of the wiper device 9 and the power supply circuit 24c of the washer device 11. Select one of the 22 and make one of the power circuits energized,
A first selection means 21 for shutting off the other power supply circuit is provided, and either the power supply circuit 24a of the wiper device 9 or the power supply circuit 24c of the washer device 11 is selected downstream of the common power supply circuit 22. When the operation of the first selecting means 21 does not select the power supply circuit 20 of the front window automatic opening / closing device S, the wiper device 9 is provided.
The power supply circuit 24a of the washer device 11 or the power supply circuit 24c of the washer device 11 is energized to operate either the wiper device 9 or the washer device 11.
上記構成によれば、前窓自動開閉装置Ｓの電源回路20
かワイパ装置の電源回路24a、ウオッシャ装置11の電源
回路24cの共通の電源回路22かの選択する第１選択手段
を設けたので、前窓自動開閉装置Ｓの電源回路20と、ワ
イパ装置９の電源回路24a、及びウオッシャ装置11の電
源回路24cの共通の電源回路22とが同時に通電状態にな
らない。According to the above configuration, the power supply circuit 20 of the front window automatic opening / closing device S
The power supply circuit 24a of the windshield wiper device and the common power supply circuit 22 of the power supply circuit 24c of the washer device 11 are provided with first selection means. The power supply circuit 24a and the common power supply circuit 22 of the power supply circuit 24c of the washer device 11 are not simultaneously energized.
第１選択手段21の操作で前窓自動開閉装置Ｓの電源回
路20を選択したときは、ワイパ装置９の電源回路24a、
及びウオッシャ装置11の電源回路24cの共通の電源回路2
2には通電が遮断状態となり、ワイパ装置９またはウオ
ッシャ装置11は作動できない。When the power supply circuit 20 of the front window automatic opening / closing device S is selected by the operation of the first selection means 21, the power supply circuit 24a of the wiper device 9,
And the common power supply circuit 2 of the power supply circuit 24c of the washer device 11.
2, the power is cut off, and the wiper device 9 or the washer device 11 cannot operate.
前窓自動開閉装置Ｓの電源回路20を第１選択手段21に
より選択して、前窓を開放している最中、あるいは前窓
を閉止している最中にワイパ装置９、ウオッシャ装置11
を作動することは不可能である。このときもしも運転者
が誤って第２選択手段23を操作してもワイパ装置９の電
源回路24a、またはウオッシャ装置11の電源回路24cを選
択しても、ワイパ装置９またはウオッシャ装置11には電
源が供給されてないので、ワイパ装置９またはウオッシ
ャ装置11は作動できない。従って、前窓を開放している
最中、前窓を閉止している最中にはワイパ装置９または
ウオッシャ装置11等が空作動して前窓等に接触して破損
する、あるいはウオッシャから洗浄水が吹き出して運転
者の目に入る等の不具合は防止できる。The power supply circuit 20 of the front window automatic opening / closing device S is selected by the first selection means 21 and the wiper device 9 and the washer device 11 are opened while the front window is opened or the front window is closed.
It is impossible to operate. At this time, even if the driver mistakenly operates the second selection means 23 or selects the power supply circuit 24a of the wiper device 9 or the power supply circuit 24c of the washer device 11, the power is not supplied to the wiper device 9 or the washer device 11. Is not supplied, the wiper device 9 or the washer device 11 cannot operate. Therefore, while the front window is being opened and the front window is being closed, the wiper device 9 or the washer device 11 or the like is idled and comes into contact with the front window or the like, and is damaged or washed from the washer. Problems such as water blowing out into the eyes of the driver can be prevented.
ところで、一旦前窓Ｗを天井1bに引き上げ、前窓Ｗが
開放されたままの状態で作業を行う場合が考えられる
が、このときには運転者は前窓Ｗがこのような状態（開
放状態）であることを確認して、ワイパ装置９あるいは
ウオッシャ装置11に電源を供給する第１選択手段21を選
択しないことが肝心となる。運転者は前窓を閉止してか
ら必要に応じてワイパ装置９、ウオッシャ装置11を作動
することになる。By the way, it is conceivable that the front window W is once pulled up to the ceiling 1b and work is performed in a state where the front window W is left open. At this time, the driver operates in such a state (open state). It is important not to select the first selection means 21 for supplying power to the wiper device 9 or the washer device 11 after confirming that there is. After closing the front window, the driver operates the wiper device 9 and the washer device 11 as necessary.
本考案の一実施例を第１図乃至第３図により説明す
る。One embodiment of the present invention will be described with reference to FIGS.
先ず、第１図に示すように、前窓自動開閉装置Ｓの電
源回路20かワイパ装置9,間欠ワイパ装置10およびウオッ
シャ装置11の各電源回路24a,24b,24cの共通の電源回路2
2かのいずれかを選択する第１選択手段21を設けてい
る。第１選択手段21は電源14と接続していて、この第１
選択手段21を接点21aにON操作することにより前窓自動
開閉装置Ｓの電源回路20が通電状態となる。この第１選
択手段21を接点21bにON操作することにより電源回路22
が通電状態となり、該電源回路22から第２選択手段23を
介してワイパ装置9,間欠ワイパ装置10またはウオッシャ
装置11の各電源回路24a,24b,25cのいずれかが通電状態
となる。First, as shown in FIG. 1, the power supply circuit 20 of the front window automatic opening / closing device S or the common power supply circuit 2 of the power supply circuits 24a, 24b, 24c of the wiper device 9, the intermittent wiper device 10, and the washer device 11 is used.
A first selection means 21 for selecting one of the two is provided. The first selecting means 21 is connected to the power source 14 and
When the selection means 21 is turned ON to the contact 21a, the power supply circuit 20 of the front window automatic opening / closing device S is turned on. The power supply circuit 22 is turned on by turning on the first selection means 21 to the contact 21b.
Is turned on, and any one of the power circuits 24a, 24b, and 25c of the wiper device 9, the intermittent wiper device 10, and the washer device 11 is turned on from the power supply circuit 22 via the second selection means 23.
ワイパ装置９は電源回路24aを介して第２選択手段23
と接続している。間欠ワイパ装置10は電源回路24bを介
して第２選択手段23と接続している。ウオッシャ装置11
は電源回路24cを介して第２選択手段23と接続してい
る。また共通の電源回路22は、第２選択手段23の接点選
択により、下流の電源回路24a,24b,24cと接続してい
る。第２選択手段23は、ワイパ装置９のON位置23a,間欠
ワイパ装置10のON位置23b,ウオッシャ装置11のON位置23
c,ワイパ装置9,間欠ワイパ装置10またはウオッシャ装置
11の電源回路のOFF位置23dの４位置の選択ができるよう
になっている。The wiper device 9 is connected to the second selection unit 23 via the power supply circuit 24a.
Is connected to The intermittent wiper device 10 is connected to the second selecting means 23 via the power supply circuit 24b. Washer device 11
Is connected to the second selecting means 23 via the power supply circuit 24c. The common power supply circuit 22 is connected to the downstream power supply circuits 24a, 24b, 24c by the contact selection of the second selection means 23. The second selecting means 23 includes an ON position 23a of the wiper device 9, an ON position 23b of the intermittent wiper device 10, and an ON position 23 of the washer device 11.
c, wiper device 9, intermittent wiper device 10 or washer device
It is possible to select four positions of the OFF position 23d of the 11 power supply circuits.
この４位置の選択は押しボタン25によって切換えられ
ると共に、各パイロットランプ26によって確認できるよ
うになっている。The selection of the four positions is switched by a push button 25 and can be confirmed by each pilot lamp 26.
このように、前窓自動開閉装置Ｓの電源回路20かワイ
パ装置9,間欠ワイパ装置10およびウオッシャ装置11の各
電源回路24a,24b,24cの共通の電源回路22かのいずれか
を選択する第１選択手段21と、ワイパ装置9,間欠ワイパ
装置10およびウオッシャ装置11の各電源回路24a,24b,24
cのうちのいずれかを選択する第２選択手段23を設けた
ので、第１選択手段21の操作で前窓自動開閉装置Ｓの電
源回路20を選択したときは、ワイパ装置９の電源回路24
a、ウオッシャ装置11の電源回路24cおよび間欠ワイパ装
置10の電源回路24bの共通の電源回路22には通電が遮断
状態となり、ワイパ装置９、ウオッシャ装置11および間
欠ワイパ装置10は作動できない。As described above, the power supply circuit 20 of the front window automatic opening / closing device S or the common power supply circuit 22 of the power supply circuits 24a, 24b, 24c of the wiper device 9, the intermittent wiper device 10, and the washer device 11 is selected. 1 selection means 21 and respective power supply circuits 24a, 24b, 24 of the wiper device 9, the intermittent wiper device 10 and the washer device 11.
The power supply circuit 24 of the wiper device 9 is provided when the power supply circuit 20 of the front window automatic opening / closing device S is selected by the operation of the first selection means 21 because the second selection means 23 for selecting any one of c is provided.
a, the common power supply circuit 22 of the power supply circuit 24c of the washer device 11 and the power supply circuit 24b of the intermittent wiper device 10 are turned off, and the wiper device 9, the washer device 11, and the intermittent wiper device 10 cannot operate.
すなわち、前窓自動開閉装置Ｓの電源回路20を、第１
選択手段21により選択して、前窓Ｗを開放している最
中、あるいは前窓Ｗを閉止している最中にワイパ装置
９、ウオッシャ装置11および間欠ワイパ装置10等を作動
することは不可能である。このときもしも運転者が誤っ
て第２選択手段23を操作して、ワイパ装置９の電源回路
24a、ウオッシャ装置11の電源回路24c、および間欠ワイ
パ装置10の電源回路24bを選択しても、ワイパ装置９、
ウオッシャ装置11および間欠ワイパ装置10の駆動部には
電源が供給されないので、これらのものは作動できな
い。従って、前窓Ｗを開放している最中、前窓Ｗを閉止
している最中には、ワイパ装置９、ウオッシャ装置11お
よび間欠ワイパ装置10が空作動して前窓Ｗ等に接触して
破損する、あるいはウオッシャから洗浄水が吹き出して
運転者の目に入る等の不具合は防止することが可能であ
る。That is, the power supply circuit 20 of the front window automatic opening / closing device S is connected to the first
It is not possible to operate the wiper device 9, the washer device 11, the intermittent wiper device 10 or the like while the front window W is being opened or the front window W is being closed by selecting with the selection means 21. It is possible. At this time, if the driver erroneously operates the second selection means 23, the power supply circuit of the wiper device 9 is
24a, the power supply circuit 24c of the washer device 11, and the power supply circuit 24b of the intermittent wiper device 10, even if the wiper device 9,
Since power is not supplied to the drive units of the washer device 11 and the intermittent wiper device 10, these devices cannot operate. Therefore, while the front window W is being opened and the front window W is being closed, the wiper device 9, the washer device 11, and the intermittent wiper device 10 are idled and come into contact with the front window W and the like. It is possible to prevent troubles such as breakage and damage, or washing water blowing out from the washer and entering the driver's eyes.
ところで、一旦前窓Ｗを天井1bに引き上げ、前窓Ｗが
開放されたままの状態で作業を行う場合が考えられる
が、このときには運転者は前窓Ｗが開放状態であること
を確認してワイパ装置９、ウオッシャ装置11、あるいは
間欠ワイパ装置10に電源を供給する第１選択手段21を選
択しないようにすることが肝心である。運転者は前窓Ｗ
を閉止してから必要に応じてワイパ装置９、ウオッシャ
装置11等を作動することになる。また、第１選択手段21
の操作で前窓自動開閉装置Ｓの電源回路20を選択しない
で共通の電源回路22を選択したときには、運転者は第２
選択手段23を使用して、ワイパ装置９、ウオッシャ装置
11、間欠ワイパ装置10の作動を選択することができる。
このように本考案は第１選択手段と第２選択手段を備え
てワイパ装置９等の誤作動を防止する安全な前窓ワイパ
作動装置を得ることができる。By the way, it is conceivable that the front window W is once pulled up to the ceiling 1b and the work is performed with the front window W kept open. At this time, the driver confirms that the front window W is open. It is important not to select the first selection unit 21 that supplies power to the wiper device 9, the washer device 11, or the intermittent wiper device 10. Driver is front window W
Is closed, and then the wiper device 9, the washer device 11 and the like are operated as necessary. Also, the first selection means 21
When the driver selects the common power supply circuit 22 without selecting the power supply circuit 20 of the front window automatic opening and closing device S by the operation of
Using the selection means 23, the wiper device 9, the washer device
11. The operation of the intermittent wiper device 10 can be selected.
As described above, the present invention can provide a safe front window wiper operating device that includes the first selecting device and the second selecting device and that prevents malfunction of the wiper device 9 and the like.
第１図は本考案に係る建設機械の運転室の前窓ワイパ作
動装置の一実施例を示す。第２図は油圧式堀削機の斜視
図を示す。第３図は運転室の前窓開閉状態を示す概略図
である。第４図（Ａ）は前窓の自動開放状態の作動説明
図である。第４図（Ｂ）は前窓の自動閉止状態の作動説
明図である。第５図は前窓自動開閉装置を備えた運転室
の斜視図である。 １……運転室、Ｗ……前窓、９……ワイパ装置、10……
間欠ワイパ装置、11……ウォッシャ装置、Ｓ……前窓自
動開閉装置、22……共通の電源回路、24a,24b,24c……
ワイパ装置９、間欠ワイパ装置10、及びウォッシャ装置
11の電源回路、20……前窓自動開閉電源回路、21……第
１選択手段、23……第２選択手段。FIG. 1 shows an embodiment of a front window wiper operating device of a cab of a construction machine according to the present invention. FIG. 2 shows a perspective view of a hydraulic excavator. FIG. 3 is a schematic diagram showing the open / close state of the front window of the cab. FIG. 4 (A) is an explanatory view of the operation when the front window is automatically opened. FIG. 4 (B) is an operation explanatory view of the automatic closing state of the front window. FIG. 5 is a perspective view of a cab provided with a front window automatic opening / closing device. 1 ... cab, W ... front window, 9 ... wiper device, 10 ...
Intermittent wiper device, 11: Washer device, S: Front window automatic opening / closing device, 22: Common power supply circuit, 24a, 24b, 24c ...
Wiper device 9, intermittent wiper device 10, and washer device
11 power supply circuit, 20 front window automatic opening / closing power supply circuit, 21 first selection means, 23 second selection means.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭57−147944（ＪＰ，Ａ) 特開 昭63−203450（ＪＰ，Ａ) 実開 昭61−64066（ＪＰ，Ｕ) 実開 昭57−69746（ＪＰ，Ｕ) ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-57-147944 (JP, A) JP-A-63-203450 (JP, A) Fully open 1986-64066 (JP, U) Really open 69746 (JP, U)
Claims (1)
納位置に開閉自在な前窓と、運転室の側柱に付設された
ワイパ装置およびウオッシャ装置と、前記前窓の自動開
閉装置とを備えた建設機械の運転室の前窓ワイパ作動装
置において、 前窓を自動開閉する前記前窓自動開閉装置（Ｓ）の電源
回路（20）と、 ワイパ装置（９）の電源回路（24a）、及びウオッシャ
装置（11）の電源回路（24c）の共通の電源回路（22）
と、 前記前窓自動開閉装置（Ｓ）の電源回路（20）かワイパ
装置（９）の電源回路（24a）、及びウオッシャ装置（1
1）の電源回路（24c）の共通の電源回路（22）かのいず
れかを選択して一方の電源回路を通電状態にし、他方の
電源回路を遮断状態にする第１選択手段（21）を設ける
と共に、 前記共通の電源回路（22）の下流には前記ワイパ装置
（９）の電源回路（24a）またはウオッシャ装置（11）
の電源回路（24c）のいずれかを選択する第２選択手段
（23）を設けてなり、 前記第１選択手段（21）の操作が前記前窓自動開閉装置
（Ｓ）の電源回路（20）を選択しないときは、前記ワイ
パ装置（９）の電源回路（24a）またはウオッシャ装置
（11）の電源回路（24c）のいずれかを通電状態にして
ワイパ装置（９）かまたはウオッシャ装置（11）のいず
れかを作動させることを特徴とする建設機械の運転室の
前窓ワイパ作動装置。1. A front window which can be opened and closed from the front of a cab of a construction machine to a storage position on an inner surface of a ceiling, a wiper device and a washer device attached to a side pillar of the cab, and an automatic opening and closing device for the front window. A power circuit (20) for the front window automatic opening and closing device (S) for automatically opening and closing the front window, and a power circuit (24a) for the wiper device (9). And the common power supply circuit (22) of the power supply circuit (24c) of the washer device (11)
A power circuit (20) for the front window automatic opening and closing device (S) or a power circuit (24a) for the wiper device (9), and a washer device (1).
The first selection means (21) for selecting one of the common power supply circuits (22) of the power supply circuit (24c) of 1) to make one of the power supply circuits conductive and the other to shut off the power supply circuit. A power supply circuit (24a) of the wiper device (9) or a washer device (11) is provided downstream of the common power supply circuit (22).
A second selection means (23) for selecting any one of the power supply circuits (24c), and the operation of the first selection means (21) is performed by the power supply circuit (20) of the front window automatic opening / closing device (S). When is not selected, either the power supply circuit (24a) of the wiper device (9) or the power supply circuit (24c) of the washer device (11) is energized and the wiper device (9) or the washer device (11) is turned on. A windshield wiper operating device for a cab of a construction machine, wherein the windshield operating device operates any one of the following.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042749U JP2596647Y2 (en) | 1990-04-20 | 1990-04-20 | Front window wiper actuator for cab of construction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990042749U JP2596647Y2 (en) | 1990-04-20 | 1990-04-20 | Front window wiper actuator for cab of construction machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH042718U JPH042718U (en) | 1992-01-10 |
| JP2596647Y2 true JP2596647Y2 (en) | 1999-06-21 |
Family
ID=31554568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990042749U Expired - Fee Related JP2596647Y2 (en) | 1990-04-20 | 1990-04-20 | Front window wiper actuator for cab of construction machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596647Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2743745B2 (en) * | 1992-11-13 | 1998-04-22 | 油谷重工株式会社 | Front window opening and closing device for cab for construction machinery |
| CN103161376A (en) * | 2013-02-23 | 2013-06-19 | 三一重机有限公司 | Cab and front window of the cab and engineering machinery |
| DE102013212313A1 (en) * | 2013-06-26 | 2014-12-31 | Robert Bosch Gmbh | Wiper system for vehicle windows, in particular vehicle windscreens |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55146433A (en) * | 1979-05-01 | 1980-11-14 | Nippon Kogaku Kk <Nikon> | Warning device of automatic exposure camera |
| JPS5769746U (en) * | 1980-10-16 | 1982-04-27 | ||
| JPS57147944A (en) * | 1981-03-06 | 1982-09-13 | Toyota Motor Corp | Wiper unit for openable windshield |
| JPS59149793A (en) * | 1983-02-15 | 1984-08-27 | Toshiba Corp | Malfunction detector |
| JPS6164066U (en) * | 1984-10-02 | 1986-05-01 | ||
| JPS63203450A (en) * | 1987-02-17 | 1988-08-23 | Sumitomo Electric Ind Ltd | Wiper device |
-
1990
- 1990-04-20 JP JP1990042749U patent/JP2596647Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH042718U (en) | 1992-01-10 |
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| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |