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US 10,456,824 B2Granted
Safety power assist for manual press
AssigneeBTM Corporation
InventorJoseph Andrew Janiszewski
Life of this patent
Estimating the term…
Abstract
A safety power assist for a manual press is provided. In another aspect, a press includes a tool, a manual actuator, a switch and an automatically powered actuator. A further aspect of the present press employs a spring which must be compressed beyond a predetermined pinching force before a switch is activated, where switch activation causes an automatically powered actuator to advance a workpiece-contacting punch or tool.
Claims31
A press comprising:
- (a) a tool including a punch;
- (b) a frame;
- (c) a manual actuator;
- (d) the tool being operably moveable in a longitudinal direction relative to the frame due to movement of the manual actuator;
- (e) a switch;
- (f) an abutment surface;
- (g) an automatically powered actuator coupled to the punch;
- (h) a biasing member being compressible when the manual actuator is moved in an operating condition which causes the abutment surface to activate the switch, and the switch activation then operably causing the automatically powered actuator to advance the punch;
- and
- (i) the manual actuator being adapted for reverse movement to retract the tool even after the biasing member has been partially compressed to an intermediate position which is insufficient to cause activation of the switch.
7 more elements
A press comprising:
- (a) a workpiece-engageable punch;
- (b) a workpiece-engageable die aligned with the punch;
- (c) a manually rotatable handle;
- (d) a carriage;
- (e) a gear set adapted to linearly move the carriage relative to the die due to manual activation of the handle, the punch being moveable with the carriage in at least one operating condition;
- (f) a switch;
- (g) an activation surface moveable with the carriage in at least one operating condition;
- (h) a fluid powered actuator adapted to move the punch relative to the carriage in at least one operating condition;
- (i) the activation surface being operable to activate the switch when one is moved relative to the other when the carriage nears a fully advanced operating condition;
- (j) activation of the switch being operable to activate the fluid powered actuator;
- and
- (k) activation of the fluid powered actuator being operable to advance the punch toward the die after the handle has manually advanced the carriage.
9 more elements
A press comprising:
- (a) a workpiece-clinching tool including a punch;
- (b) a frame;
- (c) a manually moveable handle coupled to the frame;
- (d) a carrier moveable relative to the frame due to movement of the handle;
- (e) a switch moveable with the carrier prior to switch activation but movable relative to the carrier to cause the switch activation;
- (f) an automatically powered actuator operably moving the punch if the switch is activated;
- and
- (g) at least one spring, activation of the switch and compression of the at least one spring activating the automatically powered actuator if at least 50 pounds per square inch of obstruction force is present when advancing, after which the automatically powered actuator advances the punch.
5 more elements
Dependencies are inferred from the claim text.