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US 6,170,579 B2Granted
Power tool having interchangeable tool head
AssigneeBlack & Decker Inc.
InventorBrian Wadge
Life of this patent
Estimating the term…
Abstract
A power tool comprises a body (14) having a motor (22) with an output. A detachable tool head (50) is engageable with the motor output wherein the motor output has a first engagement member (32) for complimentary engagement with a second engagement member (62) on the tool head drive. The first engagement member (32) is recessed within the body (14) and accessible through an aperture (44) therein. And the second engagement member (62) is recessed within the tool head (52) and accessible through a second aperture therewithin.
Claims20
A power tool comprising:
- a tool body having a motor with a motor output;
- and
- a detachable tool head, the tool head including a drive mechanism for engagement with the motor output;
- said motor output including a first engagement means for complimentary engagement with a second engagement means on said head drive mechanism when said tool head is connected to said tool body, said first engagement means completely recessed within a non-removable portion of said body and accessible through an aperture in said body and said second engagement means is completely recessed within said tool head and accessible through an aperture in said tool head;
- wherein one of the first and second engagement means are formed within a spigot extending along an axis of the tool head or the tool body and received within a chamber formed within the other of the tool head or the tool body such that the spigot engages and co-operates with alignment apertures within the chamber of said other of the tool head and the tool body to restrain the spigot from axial displacement when the first and second engagement means are engaged.
2 more elements
A power tool comprising:
- a tool body having a housing and a motor mounted within the housing, the motor including a rotatable output shaft, the rotatable output shaft recessed completely within a non-removable portion of the housing;
- and
- a tool head releasably attached to the tool body, the tool head including a drive spindle releasably interconnected to the rotatable output shaft, the tool head further including a spigot extending along an axis of the tool head and radially surrounding the drive spindle the spigot received within a chamber formed within the tool body such that the spigot engages and co-operates with alignment apertures within the chamber of said tool body to restrain the spigot from axial displacement when the rotatable output shaft and drive spindle are engaged.
A power tool system comprising:
- a common tool body having a housing and a motor mounted within the housing rotatable about a first axis, the rotatable output member axially concealed within the housing;
- and
- at least one tool head selectively and releasably attachable to the tool body, the at least one tool head having an input member rotatable about a second axis, the input member interconnectable with the output member of the motor when the at least one tool head is attached to the tool body;
- wherein one of the common tool body and the at least one tool head includes a spigot extending along an axis of the tool head or the tool body and radially surrounding the associated one of the rotatable output member and the input member, the spigot including first and second portions of different outer diameters engaging alignment aperture within the other of the common tool body and the at least one tool head, the first and second portions of the spigot being axially spaced apart.
1 more element
Dependencies are inferred from the claim text.