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US 7,255,520 B2Granted
Router plunge depth adjustment mechanism
AssigneeBlack & Decker Inc.
InventorMike Taylor
Life of this patent
Estimating the term…
Abstract
A mechanism and method for providing base end plunge router depth adjustment, such as when a router is utilized with a router table. The apparatus and method of the present invention permits accurate and efficient depth adjustment when utilizing a router with a router table. A router depth adjustment device includes an adjustment knob and indexer, so users are provided with the ability for measured depth adjustment.
Claims30
A plunge router adjustment mechanism, comprising:
- a base including an aperture therethrough;
- a first column portion connected to the base, the first column portion defining an interior recess with a stop, the first column being configured such that the base aperture permits access to the interior of the first column portion;
- a second column portion adjustably connected to the first column portion, the second column portion suitable for at least partially supporting a motor housing;
- means for providing a biasing force, the means being configured to force the second column portion away from the first column portion;
- a threaded rod with a first and a second end, the threaded rod is pivotally connected, adjacent the first end of the threaded rod, to the second column portion generally opposite the connection between the first and second column portions and said second end forms a mechanical connection;
- a nut disposed in the first column portion such that the exterior of the nut mates with the interior of the first column portion, said nut coupled to the threaded rod, said nut being capable of traveling between the end of the first column portion opposite the base and the stop, contact between the stop and the nut defining plunge depth;
- and
- an adjustment shaft removably engageable with the mechanical conection of the threaded rod through the aperture in the base to pivot the threaded rod, the adjustment shaft including a gauge that indicates an amount of the plunge depth.
5 more elements
A base end plunge router adjustment mechanism, comprising:
- a base including an aperture therethrough;
- a first column portion connected to the base, the first column portion defining an interior recess with a stop, the column being configured such that the base aperture permits access to the interior of the first column portion;
- a second column portion adjustably connected to the first column portion, the second column portion suitable for at least partially supporting a motor housing;
- means for providing a biasing force, the means being configured to force the second column portion away from the first column portion;
- a threaded rod with a first and a second end, the threaded rod is pivotally connected, adjacent the first end of the threaded rod, to the second column portion generally opposite the connection between the first and second column portions and said second end forms a mechanical connection terminating in the first column portion, the mechanical connection comprising a hex head;
- a nut disposed in the first column portion such that the exterior of the nut mates with the interior of the first column portion, said nut coupled to the threaded rod, said nut being capable of traveling between the end of the first column portion opposite the base and a lower stop, contact between the lower stop and the nut defining plunge depth;
- and
- an adjustment shaft removable engageable with the mechanical connection of the threaded rod through the aperture in the base to pivot the threaded rod, the adjustment shaft including a gauge that indicates an amount of the plung depth.
5 more elements
A router adjustment mechanism, comprising:
- a router having a base with an aperture therethrough, a threaded rod defining a longitudinal axis and having a first end and a second end facing the aperture, a follower that engages with the threaded rod so that rotation of the threaded rod about the longitudinal axis causes movement of at least one of the threaded rod and the follower parallel to the longitudinal axis to adjust a cutting depth of the router;
- and
- an adjustment shaft removably engageable with the second end of the threaded rod through the aperture in the base to rotate the threaded rod about the longitudinal axis, the adjustment shaft including a gauge that indicates an amount of the cutting depth.
A plunge router adjustment mechanism, comprising:
- a plunge router having
- a base with an aperture therethrough;
- a first column portion coupled to the base and defining an interior recess with a stop, the interior recess in communication with the aperture;
- a second column portion coupled to a motor housing and coupled to the first column portion for movement along an axis of the second column portion;
- a spring configured to bias the second column portion away from the first column portion;
- a threaded rod with a first end and a second end, the rod coupled to at least one of the first and second column portions for rotation about an axis of the rod, the second end of the rod facing the aperture;
- and
- a follower engagable with the threaded rod and the stop so that rotation of the threaded rod about the rod axis causes movement of at least one of the threaded rod and the follower parallel to the rod axis to adjust a plunge depth that is defined by contact between the follower and the stop;
- and
- an adjustment shaft removably engageable with the second end of the threaded rod through the aperture to rotate the threaded rod, the adjustment shaft including a gauge that indicates an amount of the plunge depth.
7 more elements
Dependencies are inferred from the claim text.