JPS62147688U - - Google Patents
Info
- Publication number
- JPS62147688U JPS62147688U JP3419586U JP3419586U JPS62147688U JP S62147688 U JPS62147688 U JP S62147688U JP 3419586 U JP3419586 U JP 3419586U JP 3419586 U JP3419586 U JP 3419586U JP S62147688 U JPS62147688 U JP S62147688U
- Authority
- JP
- Japan
- Prior art keywords
- relay
- cab
- main power
- driver
- operator
- 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
Links
- 230000005284 excitation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control And Safety Of Cranes (AREA)
- Jib Cranes (AREA)
Description
添付図面は本考案の一実施例を示す概略構成図
である。
１０……電源（バツテリ）、１２……下部運転
室用メーンスイツチ、１２′……上部運転室用メ
ーンスイツチ、１４及び１４′……主電源リレー
、１６及び１６′……保持リレー、３２……駐車
ブレーキ装置、３４……スプリングチヤンバ、３
８……圧縮空気源、４０……空気圧リレーバルブ
、４４及び４４′……三方向電磁弁、４８……ダ
ブルチエツクバルブ、５０……手動制御弁、５４
……駐車ブレーキスイツチ、５６及び５８……プ
レツシヤスイツチ。
The accompanying drawing is a schematic diagram showing an embodiment of the present invention. 10...Power supply (battery), 12...Main switch for lower cab, 12'...Main switch for upper cab, 14 and 14'...Main power relay, 16 and 16'...Holding relay, 32... ...Parking brake device, 34...Spring chamber, 3
8...Compressed air source, 40...Pneumatic relay valve, 44 and 44'...Three-way solenoid valve, 48...Double check valve, 50...Manual control valve, 54
... Parking brake switch, 56 and 58 ... Pressure switch.
Claims (1)
クレーン等の作業装置に設けられた上部運転室と
を具えた作業用車両において、車載電源と、上記
下部運転室及び上部運転室の夫々に設けられたメ
ーンスイツチと、上記メーンスイツチに夫々接続
されて主電源回路を開閉する下部運転室用の主電
源リレー及び上部運転室用の主電源リレーと、上
記式電源リレーに夫々協働し、何れか一方の主電
源リレーが閉成されているとき他方の主電源リレ
ーの励磁回路を遮断して同リレーの閉成を禁止す
る補助リレーと、各運転室用の主電源リレー及び
補助リレーと協働し夫々の主電源リレーが閉成さ
れたとき、その自己保持回路を形成する保持リレ
ーとを具え、何れか一方の能転室用の主電源リレ
ー及び他方の運転室のメーンスイツチが閉成され
ていて、上記一方の運転室のメーンスイツチが開
成されたとき、一方の運転室用の保持リレーが上
記他方の運転室用の補助リレーにより付勢されて
閉成されるように構成されていることを特徴とす
る作業用車両の安全電源回路。 In a work vehicle that is equipped with a lower operator's cab that is original to the vehicle and an upper operator's cab that is installed on a working device such as a crane mounted on the same vehicle, an on-board power supply and each of the lower operator's cab and upper operator's cab are connected to the vehicle. A main switch provided therein, a main power relay for the lower driver's cab and a main power relay for the upper driver's cab connected to the main switch to open and close the main power circuit, respectively, cooperate with the above-mentioned type power relay, An auxiliary relay that cuts off the excitation circuit of the other main power relay when one of the main power relays is closed and prohibits the relay from closing, and a main power relay and auxiliary relay for each driver's cab. When the respective main power relays working together are closed, the main power relay for one of the transfer rooms and the main switch of the other operator's room are closed, including a holding relay that forms a self-holding circuit. and when the main switch of the one driver's cab is opened, the holding relay for one of the driver's cabs is energized and closed by the auxiliary relay for the other driver's cab. A safety power supply circuit for work vehicles characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3419586U JPS62147688U (en) | 1986-03-10 | 1986-03-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3419586U JPS62147688U (en) | 1986-03-10 | 1986-03-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62147688U true JPS62147688U (en) | 1987-09-18 |
Family
ID=30842515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3419586U Pending JPS62147688U (en) | 1986-03-10 | 1986-03-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62147688U (en) |
-
1986
- 1986-03-10 JP JP3419586U patent/JPS62147688U/ja active Pending
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