Router elevating mechanism
First Claim
1. A power tool, comprising:
- a motor housing for enclosing a motor for operating a working tool;
a base for adjustably receiving the motor housing;
an eccentric lever adjustably coupled to at least one of the motor housing or the base;
a worm drive pivotally coupled to the eccentric lever, the worm drive being eccentrically configured with respect to the eccentric lever; and
a rack assembly disposed so as to be engaged by the worm drive to adjustably position the working tool with respect to the base,wherein the eccentric lever is operable to adjustably position the worm drive into an engaged position with the rack assembly and a released position in which the worm drive is remote from the rack assembly.
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Accused Products
Abstract
The present invention is directed to an elevating mechanism, in particular to an elevating mechanism for routers, is configured for easy micro adjustment and coarse or macro adjustment. In an embodiment, a power tool includes a base configured to adjustably receive a motor housing for operating a working tool. A worm drive is pivotally coupled, in an eccentric configuration, to an eccentric lever. The eccentric lever is adjustably coupled to at least one of the housing or the base such that the eccentric lever is operable to cause the worm drive to be positioned into an engaged position with a rack assembly and a released position wherein the worm drive is remote from the rack assembly. The elevating mechanism is operable to permit rotational micro adjustment and macro manual adjustment wherein the worm drive is remote from the rack assembly for permitting coarse adjustment of the motor housing with respect to the base.
157 Citations
36 Claims
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1. A power tool, comprising:
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a motor housing for enclosing a motor for operating a working tool; a base for adjustably receiving the motor housing; an eccentric lever adjustably coupled to at least one of the motor housing or the base; a worm drive pivotally coupled to the eccentric lever, the worm drive being eccentrically configured with respect to the eccentric lever; and a rack assembly disposed so as to be engaged by the worm drive to adjustably position the working tool with respect to the base, wherein the eccentric lever is operable to adjustably position the worm drive into an engaged position with the rack assembly and a released position in which the worm drive is remote from the rack assembly. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A power tool, comprising:
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a motor housing for enclosing a motor for operating a working tool; a base including a sleeve portion configured for adjustably receiving the motor housing; an eccentric lever rotatably coupled to the base sleeve; a worm drive pivotally coupled to the eccentric lever substantially parallel to the motor housing, the worm drive being eccentrically configured with respect to the eccentric lever; and a rack assembly disposed so as to be engaged by the worm drive to adjustably position the working tool with respect to the base, wherein the eccentric lever is operable to adjustably position the worm drive into an engaged position with the rack assembly and a released position in which the worm drive is remote from the rack assembly. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. A router, comprising:
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a generally cylindrical motor housing, for enclosing a motor for rotating a router bit, the cylindrical motor housing having a curved outer surface; a base including a sleeve portion configured for adjustably receiving the motor housing, the base including a mounting; an eccentric lever rotatably coupled to the base mounting, the eccentric lever defining an eccentrically disposed aperture which is constructed to generally extend radially from the curved outer surface; a worm drive pivotally coupled to the eccentric lever substantially parallel to the motor housing, the worm drive being eccentrically disposed with respect to the eccentric lever, the worm drive including a shaft having a first and a second end, said shaft extending through the slot included in the base; means for biasing the worm drive into the engaged position; and a rack assembly disposed so as to be engaged by the worm drive to adjustably position the working tool with respect to the base, wherein the eccentric lever is operable to adjustably position the worm drive into an engaged position with the rack assembly and a released position in which the worm drive is remote from the rack assembly. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification