Power tool having interchangeable tool head
DCFirst Claim
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1. A power tool comprising:
- a tool body having a motor with a rotary output, said tool body having a generally cylindrical opening providing access to said rotary output, said tool body further including a slot radially extending from and intersecting said cylindrical opening; and
a tool head releasably attached to the tool body, the tool head having first and second generally cylindrical portions extending along an axis of the tool head, the first generally cylindrical portion extending from an end of the tool head and received within the generally cylindrical opening, the second generally cylindrical portion having a diameter smaller than the first generally cylindrical portion, axially extending from the first generally cylindrical portion and received within the generally cylindrical opening to engage a second opening therein the tool head further including a projection for cooperating with said slot to orient the tool head in a pre-determined orientation relative to the body, said projection being rigid, fixedly carried by the tool head,extending radially from the first generally cylindrical portion, and axially engageable with said slot.
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Abstract
A power tool includes a motor (20) mounted within a body (14) of the tool. The tool (14) is able to accept any one of a plurality of attachment members (54) so as to form a tool dedicated for a particular job. Each one of the attachment members (54) of the plurality has a pre-determined output speed and one of a rotary and non-rotary output. By the ability to interchange the attachment members of the plurality therefore a total power tool is provided having the above features.
160 Citations
21 Claims
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1. A power tool comprising:
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a tool body having a motor with a rotary output, said tool body having a generally cylindrical opening providing access to said rotary output, said tool body further including a slot radially extending from and intersecting said cylindrical opening; and
a tool head releasably attached to the tool body, the tool head having first and second generally cylindrical portions extending along an axis of the tool head, the first generally cylindrical portion extending from an end of the tool head and received within the generally cylindrical opening, the second generally cylindrical portion having a diameter smaller than the first generally cylindrical portion, axially extending from the first generally cylindrical portion and received within the generally cylindrical opening to engage a second opening therein the tool head further including a projection for cooperating with said slot to orient the tool head in a pre-determined orientation relative to the body, said projection being rigid, fixedly carried by the tool head,extending radially from the first generally cylindrical portion, and axially engageable with said slot. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A power tool comprising:
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a tool body having a motor with a rotary output, said tool body having a first opening substantially co-axial with said rotary output, said tool body further including a slot extending radially outward from said first opening; and
a tool head releasably attached to the tool body, said tool head having first and second co-axial spigot members axially spaced apart from each other, the first spigot member extending from an end of the tool head and received within said first opening and said second spigot member having a diameter smaller than the first spigot member, extending from the first spigot member, through the first opening and into an interior of the tool body to engage a second opening therein when said tool head is connected to said tool body, said first spigot member including a radially extending projection for co-operating engagement with said slot to orientate the tool head in a predetermined orientation relative to the body. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A power tool comprising:
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a tool body having a motor with a rotary output, said tool body having a first opening coaxial with the rotary output and providing access to said rotary output, said tool body further including a channel radially extending from said first opening; and
a tool head releasably connectable to said tool body and having a rotary input for co-operating engagement with said rotary output when tool body is connected to tool head, said tool head further comprising first and second spigot members both extending coaxially with said rotary input, the first and second spigot members being axially spaced apart from one another, the first spigot member having a diameter greater than the second spigot member, extending from an end of the tool head and received within said first opening in co-operating engagement therewith and said second spigot member extending from the first spigot member, through said first opening and into an interior of the tool body to engage a second opening therein, the first spigot member comprising a radially extending projection for co-operating engagement with said channel to orientate the tool head in a predetermined orientation relative to the body.
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Specification