JPS6328044U - - Google Patents

Description

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

第１図は本考案の一実施例を示す油圧回路図、
第２図は従来のハイリフト・ダンプ運搬車を示す
側面図、第３図は従来技術の油圧回路図である。 １……荷台、２……車体フレーム、３……昇降
用複動シリンダ、４……ダンプ用複動シリンダ、
５……４ポート切換弁、６，９……管路、７，８
……荷台側ポート、１０，１１……車体フレーム
側ポート、１２……３ポート切換弁。 FIG. 1 is a hydraulic circuit diagram showing an embodiment of the present invention;
FIG. 2 is a side view of a conventional high-lift dump truck, and FIG. 3 is a hydraulic circuit diagram of the prior art. 1... Loading platform, 2... Vehicle body frame, 3... Double-acting cylinder for lifting, 4... Double-acting cylinder for dumping,
5... 4 port switching valve, 6, 9... Pipe line, 7, 8
...Cargo bed side port, 10, 11...Vehicle frame side port, 12...3 port switching valve.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 荷台１を車体フレーム２に対して昇降させる昇
降用複動シリンダ３と、荷台１をダンプさせるダ
ンプ用複動シリンダ４とを設けてなるハイリフト
・ダンプ運搬車において、４ポート切換弁５に連
結した一方の管路６を前記昇降用複動シリンダ３
とダンプ用複動シリンダ４の荷台側ポート７，８
へ直列に連結し、他方の管路９を昇降用複動シリ
ンダ３とダンプ用複動シリンダ４の車体フレーム
側ポート１０，１１とへそれぞれ連結した３ポー
ト切換弁１２に連結してなるハイリフトダンプ運
搬車の油圧配管構造。 In a high-lift dump transport vehicle equipped with a double-acting lifting cylinder 3 for raising and lowering a loading platform 1 relative to a vehicle body frame 2 and a double-acting dumping cylinder 4 for dumping the loading platform 1, the present invention is connected to a four-port switching valve 5. One pipe line 6 is connected to the double-acting cylinder 3 for lifting and lowering.
and the loading platform side ports 7, 8 of the double-acting cylinder 4 for dumping.
The high-lift dump truck is connected to a 3-port switching valve 12 which is connected in series to the 3-port switching valve 12, and the other pipe line 9 is connected to the vehicle body frame side ports 10 and 11 of the double-acting cylinder 3 for lifting and the double-acting cylinder 4 for dumping, respectively. Hydraulic piping structure of transport vehicle.