Improvement in electrical arrangements in power tools and...

Details Improvement in electrical arrangements in power tools and... Improvement in electrical arrangements in power tools and...

A - Human Necessities

47

L

A47L 9/28 (2006.01) A47L 5/24 (2006.01)

Patent

CA 2073598

A power tool such as a hand held vacuum cleaner (10, Fig. 1) has a housing (12) and nozzle (22). The housing mounts a motor and switch carrier (20) which mounts a motor (30) driving a tool (fan) (24) and a switch (40). A battery pack (50) powers the motor (30). The electrical arrangements comprise conductors (1-6, Fig. 2) punched from a single strip and fixed in guides (44) formed on the carrier. Terminals of the motor and battery are pressed through slits (46, 48) in some conductors. The conductors pass-into tracks (100, Fig. 5) formed on a tray (54) of the switch. A mask (78) is positioned on the tray to expose the conductors in discrete switch positions (A, B, C) of slide connectors (68) mounted in a switch slide (64) slidably mounted on the tray. In different switch positions different contacts are made, the arrangement allowing different models of the same tool to be constructed with minimum adjustment of components or assembly routines.

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