Shaft lock arrangement for a power tool

Details Shaft lock arrangement for a power tool Shaft lock arrangement for a power tool

H - Electricity

01

H

H01H 9/28 (2006.01) B23Q 11/00 (2006.01) B25F 5/00 (2006.01) B27C 5/00 (2006.01) B27C 5/10 (2006.01)

Patent

CA 2119374

A router including an arrangement for locking the shaft (16) against rotation and preventing power from being supplied to the motor when the shaft is locked. The shaft is locked by movement of a lock bar (28) which traps a flatted portion (22) of the shaft (16) in an appropriately dimensioned slot (32). A secondary switch (24) in the power path to the motor is controlled by movement of the lock bar (28). In addition, an indicator lamp (62) connected to the secondary switch (24) is lit when the shaft (16) is locked and the router is still connected to a source of power.

On décrit une détoureuse comprenant un dispositif de blocage de l'arbre rotatif (16), empêchant le courant d'alimenter le moteur lorsque l'arbre est bloqué. L'arbre est bloqué par le déplacement d'une barre de blocage (28) qui coince une partie aplatie (22) de l'arbre (16) dans une fente (32) aux dimensions appropriées. Un commutateur secondaire (24) situé sur le chemin d'alimentation du moteur est contrôlé par le déplacement de la barre de blocage (28). De plus, une lampe témoin (62) reliée au commutateur secondaire (24) s'allume lorsque l'arbre (16) est bloqué et que le détoureuse est toujours connectée à la source de courant.

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