LOCKING DEVICE FOR ROD

To provide a locking device that has a simple structure and has a great locking force.SOLUTION: A locking device comprises a plurality of locking units 2 arranged along a rod R. The rocking units 2 each comprise a casing 4 into which the rod R is inserted, and a lid body 5 for covering the casing 4....

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Bibliographische Detailangaben
1. Verfasser:	NEMOTO SHINICHIRO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	To provide a locking device that has a simple structure and has a great locking force.SOLUTION: A locking device comprises a plurality of locking units 2 arranged along a rod R. The rocking units 2 each comprise a casing 4 into which the rod R is inserted, and a lid body 5 for covering the casing 4. A lock member 6 for tightening and locking the rod R, and an unlocking piston 15 for unlocking the locking member 6 by being subjected to action of a fluid pressure are housed in the casing 4. An unlocking pressure chamber 17 for subjecting the unlocking piston 15 to the fluid pressure is formed between the unlocking piston 15 and the lid body 5. An unlocking port 18, and a communication passage 19 for causing the unlocking port 18 to communicate with the unlocking pressure chamber 17 are formed in the lid body 5.SELECTED DRAWING: Figure 2 【課題】構造が簡単でロック力の大きいロック装置を得る。【解決手段】ロック装置は、ロッドＲに沿って配設された複数のロックユニット２を有し、ロックユニット２は、ロッドＲが挿通するケーシング４と、ケーシング４を覆う蓋体５とを有し、ケーシング４の内部に、ロッドＲを締め付けてロックするロック部材６と、流体圧力の作用を受けてロック部材６のロックを解除する解除ピストン１５とが収容され、解除ピストン１５と蓋体５との間に、解除ピストン１５に流体圧力を作用させるための解除圧力室１７が形成され、蓋体５に、解除ポート１８と、解除ポート１８を解除圧力室１７に連通させる連通路１９とが形成されている。【選択図】図２