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US 5,684,388 AGranted
Scroll saw motor/printed circuit board housing with switch lock-out
AssigneeEmerson Electric Co.
InventorsJohn L. Theising, Frank J. Tomiser, Jr.
Life of this patent
Estimating the term…
Abstract
A motor housing for a variable speed scroll saw or other operating tool is disclosed. The motor housing includes a motor as well as a printed circuit board mounted in the motor housing adjacent the motor. A switch is attached to the printed circuit board and extends outside of the motor housing. The switch is also attached to the motor housing. A switch lock-out is operably associated with the housing for disabling the switch until the switch lock-out is disengaged. Preferably, the switch lock-out is a releasable locking mechanism such as a padlock.
Claims6
An operating tool motor housing including:
- a motor mounted in the motor housing;
- a printed circuit board mounted in the motor housing adjacent the motor;
- a pull on/push off switch connected to the printed circuit board and extending outside of the housing;
- a lockable switch lock-out device operably associated with said housing and said switch for disabling the switch until the lockable switch lock-out device is disengaged,
- the lockable switch lock-out device engaging the pull-on/push-off switch to prevent movement thereof until the lockable switch lock-out device is disengaged;
- and
- the lockable switch lock-out device including a padlock received in a housing slot adjacent the pull-on/push-off switch for engaging and preventing movement of the pull-on/push-off switch.
4 more elements
A scroll saw motor housing including:
- a motor housing section for receiving a motor;
- an adjacent printed circuit board housing section for receiving a printed circuit board adjacent to the motor;
- a pull-on/push-off switch attached to the printed circuit board and including a pull-on/push-off shank that extends through said printed circuit board housing, said pull-on/push-off switch being attached to said printed circuit board housing, the pull-on/push-off shank of said pull-on/push-off switch extending outside of said housing including a gripping knob for pull-on/push-off operation and a knob finger guard surrounding the pull-on/push-off shank in proximity to said housing;
- and
- a lockable switch lock-out device for engaging the knob finger guard of said pull-on/push-off switch to prevent operation of the pull-on/push-off switch until the lockable switch lock-out device is disengaged;
- the pull-on/push-off switch including a threaded supporting shank surrounding the pull-on/push-off shank of said pull-on/push-off switch and also extending outside of said printed circuit board housing, and a nut threadably engaging the threaded shank of said pull-on/push-off switch outside of said printed circuit board housing for securing the printed circuit board to said printed circuit board housing;
- and,
- padlock being received in a housing slot of the printed circuit board housing adjacent the knob finger guard for engaging same to prevent movement of the pull-on/push-off shank of the pull-on/push-off switch until the padlock is removed.
5 more elements
A scroll saw motor housing including:
- a motor housing section for receiving a motor;
- an adjacent printed circuit board housing section for receiving a printed circuit board adjacent to the motor;
- a pull-on/push-off switch attached to the printed circuit board and including a pull-on/push-off shank that extends through said printed circuit board housing, said pull-on/push-off switch being attached to said printed circuit board housing, the pull-on/push-off shank of said pull-on/push-off switch extending outside of said housing including a gripping knob for pull-on/push-off operation and a knob finger guard surrounding the pull-on/push-off shank in proximity to said housing;
- and
- a lockable switch lock-out device for engaging the knob finger guard of said pull-on/push-off switch to prevent operation of the pull-on/push-off switch until the lockable switch lock-out device is disengaged, the lockable switch lock-out device comprising a padlock that engages the knob finger guard.
2 more elements
Dependencies are inferred from the claim text.