Back to results
US 12,479,180 B2Granted
Press device
AssigneeSumitomo Heavy Industries, Ltd.
InventorSatoshi Tabata
Life of this patent
Estimating the term…
Abstract
A press device includes a slide configured to hold a first die, a holding portion configured to hold a second die, a reciprocating mechanism that causes the slide to reciprocate in a stroke direction in which the first die and the second die move closer to or away from each other, and a pressurizing mechanism that holds the second die while pressurizing the second die toward the first die with a stroke shorter than that of the reciprocating mechanism in a state where the first die and the second die are moved close to each other by the reciprocating mechanism.
Claims18
A press device comprising:
- a slide configured to hold a first die;
- a holding portion configured to hold a second die;
- a reciprocating mechanism that causes the slide to reciprocate in a stroke direction in which the first die and the second die move closer to or away from each other;
- and
- a pressurizing mechanism that holds the second die while pressurizing the second die toward the first die with a stroke shorter than that of the reciprocating mechanism in a state where the first die and the second die are moved close to each other by the reciprocating mechanism,
- wherein the reciprocating mechanism is a crank mechanism,
- the crank mechanism is configured to stop the slide by opening a clutch and closing a brake when the slide reaches a bottom dead center,
- the pressurizing mechanism is configured to hold the second die to pressurize the second die toward the first die when the slide is positioned at the bottom dead center, and
- the position of the slide is held with a force smaller than a pressurizing force applied from the pressurizing mechanism while the second die is pressurized and held by the pressurizing mechanism.
6 more elements
Dependencies are inferred from the claim text.