Pneumatic or pressurized fluid tool having a control device

Pneumatic or pressurized fluid tool having a control device

Pneumatic or pressurized fluid tool, such as a screwdriver, having a control device. The control device includes a pivotally mounted trigger which causes rotation of the motor in a first rotational direction when pivoted in a first direction and which causes rotation of the motor in an opposite rota...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: CHAPELLE, JEAN-LOUIS, BARBIER, DIDIER
Format: Patent
Sprache:eng
Schlagworte:
COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR
DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR
HAND TOOLS
MANIPULATORS
PERFORMING OPERATIONS
PORTABLE POWER-DRIVEN TOOLS
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FORFASTENING, CONNECTING, DISENGAGING OR HOLDING
TRANSPORTING
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Beschreibung
Zusammenfassung:Pneumatic or pressurized fluid tool, such as a screwdriver, having a control device. The control device includes a pivotally mounted trigger which causes rotation of the motor in a first rotational direction when pivoted in a first direction and which causes rotation of the motor in an opposite rotational direction when pivoted in a second direction opposite to the first direction. The trigger is connected to a piston which is movable in a cylinder. The piston is connected by a rod to a valve and includes a cam. The cam of the piston, cooperating with a plunger, operates a selector so that when the trigger is pivoted in the first direction, compressed air or pressurized fluid is admitted to rotate the motor in the first direction. If the trigger is pivoted in the second direction, the cam, cooperating with the plunger, moves the selector to close an inlet passage corresponding to the first rotational direction of the motor and opens a second inlet passage corresponding to the opposite rotational direction of the motor.