JPS6211899U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の作業車の電気回路図であり、
第２図は本考案の作業車の側面図である。 １；走行基台、２；旋回台、４；支柱、８；第
１ステージ、１２；第２ステージ、１７；第１操
作装置、１８；第２操作装置、２８；第１許可ス
イツチ、３１；第２許可スイツチ、３３；第１ス
イツチ、３４；第２スイツチ。 Figure 1 is an electrical circuit diagram of the work vehicle of the present invention.
FIG. 2 is a side view of the working vehicle of the present invention. 1; Travel base, 2; Swivel base, 4; Strut, 8; First stage, 12; Second stage, 17; First operating device, 18; Second operating device, 28; First permission switch, 31; Second permission switch, 33; first switch, 34; second switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 走行基台上に旋回台を旋回自在に搭載し、この
旋回台に配設した支柱に沿つて第１、第２ステー
ジを夫々摺動自在に配設すると共に、これら第１
、第２ステージに夫々第１、第２操作装置を設け
、これら第１、第２操作装置の操作によつて前記
走行基台の走行又は支柱の移動或いは走行基台の
走行と支柱の移動を夫々なすための油圧アクチユ
エータの作動を操作するソレノイド式操作弁が切
換制御されるようにした作業車の電気回路であつ
て、前記第１操作装置を介して前記ソレノイド式
操作弁へ給電する回路には第１スイツチを設け、
この第１スイツチは前記第２ステージ側に設けた
第２許可スイツチが操作されたときにのみ前記第
１操作装置による前記操作バルブの自由な制御を
可能にする側に作動し、前記第２操作装置を介し
て前記ソレノイド式操作弁へ給電する回路には第
２スイツチを設け、この第２スイツチは前記第１
ステージ側に設けた第１許可スイツチが操作され
たときにのみ第２操作装置による前記操作バルブ
の自由な制御を可能にする側に作動するようにし
た作業車の電気回路。 A swivel table is rotatably mounted on the traveling base, and a first and a second stage are respectively slidably disposed along columns provided on the swivel table.
, the second stage is provided with first and second operating devices, respectively, and by operating the first and second operating devices, the traveling base moves or the support column moves, or the traveling base moves and the support column moves. An electrical circuit of a working vehicle in which a solenoid operated valve for controlling the operation of a hydraulic actuator for each operation is controlled by switching, the circuit supplying power to the solenoid operated valve via the first operating device. The first switch is installed,
This first switch operates to the side that enables free control of the operating valve by the first operating device only when a second permission switch provided on the second stage side is operated, and the first switch is operated to enable free control of the operating valve by the first operating device, A second switch is provided in the circuit that supplies power to the solenoid-operated valve through the device, and this second switch is connected to the first switch.
An electric circuit of a working vehicle is configured to operate to a side that allows free control of the operating valve by a second operating device only when a first permission switch provided on the stage side is operated.