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US 5,765,289 AGranted
Rotary cutter
AssigneeFiskars Inc.
InventorsWilliam J. Schulz, Robert W. Cornell
Life of this patent
Estimating the term…
Abstract
A rotary cutter includes an elongated handle having a gripping portion connected to a platform having a peripheral edge. A generally circular blade is rotatably mounted on a shaft extending through an aperture formed in the platform. The cutter also includes a blade guard having an arcuate portion. The guard is rotatable by the user to expose the cutting edge of the blade prior to using the cutter.
Claims33
A rotary cutter comprising:
- an elongated handle having a gripping portion merging into a head configured as a platform, the platform having an aperture formed therethrough;
- a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the head by a predetermined distance;
- and
- a guard selectively rotatable on the shaft, the guard being made of a resilient material and having a band forming an arcuate portion, the arcuate portion extending beyond the cutting edge when the rotary cutter is not in use, the band being spaced from a central region of the guard but joined thereto by at least two arms extending therebetween.
1 more element
A rotary cutter comprising:
- an elongated handle having a gripping portion merging into a head configured as a platform, the platform having an aperture formed therethrough;
- a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the head by a predetermined distance;
- and
- a guard selectively rotatable on the shaft, the guard being made of a resilient material and having an arcuate portion extending beyond the cutting edge when the rotary cutter is not in use,
- wherein the guard and the platform further include at least one of a tab and a recess to establish at least one position of the guard relative to the platform.
2 more elements
A rotary cutter comprising:
- an elongated handle having a gripping portion merging into a head configured as a platform, the platform having an aperture formed therethrough;
- a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the head by a predetermined distance;
- and
- a guard selectively rotatable on the shaft, the guard having an arcuate portion extending beyond the cutting edge when the rotary cutter is not in use and at least one ridge to facilitate rotation thereof by a user.
1 more element
A rotary cutter comprising:
- an elongated handle having a gripping portion merging into a head configured as a platform, the platform having an aperture formed therethrough;
- a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the head by a predetermined distance;
- and
- a guard selectively rotatable on the shaft, the guard having an arcuate portion extending beyond the cutting edge when the rotary cutter is not in use, the arcuate portion formed as a lip extending from an outer surface of the guard by a predetermined distance.
1 more element
A rotary cutter comprising:
- an elongated handle having a gripping portion merging into a head configured as a platform having a peripheral edge, the platform having two substantially vertical walls and an aperture formed therethrough;
- a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture and disposed adjacent an exterior of one of the walls, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the peripheral edge by a predetermined distance;
- and
- a guard selectively rotatable on the shaft, the guard having an arcuate portion extending beyond the cutting edge when the rotary cutter is not in use.
1 more element
A rotary cutter comprising:
- a handle having a gripping portion joined to a platform terminating along a peripheral edge, the platform having an aperture formed therethrough and a plurality of ribs radiating from a central region thereof, the plurality of ribs terminating in a distal region, the distal region configured as a track;
- a circular blade having a cutting edge and oppositely facing first and second surfaces;
- means for rotatably connecting the blade to the platform so that the cutting edge projects from the peripheral edge by a predetermined distance;
- and
- a guard selectively rotatable relative to the platform, the guard having an arcuate portion extending beyond the cutting edge when the rotary cutter is in storage position.
2 more elements
A rotary cutter comprising:
- an elongated handle having a gripping portion merging into a head configured as a platform, the platform having an aperture formed therethrough and at least one recess;
- a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the head by a predetermined distance;
- and
- a guard selectively rotatable on the shaft, the guard being made of a resilient material and having an arcuate portion extending beyond the cutting edge when the rotary cutter is not in use and at least one tab configured to cooperate with the at least one recess to temporarily establish relative angular position of the guard and the platform in the storage position.
1 more element
A method of cutting paper, cardboard, or fabric using a cutter which cutter comprises:
- a. an elongated handle having a gripping portion merging into a head configured as a platform having a peripheral edge, the platform having an aperture formed therethrough;
- b. a generally circular blade having a cutting edge, the blade being rotatably mounted on a shaft extending through the aperture, the shaft being associated with a fastener to secure the blade to the handle while permitting rotation of the blade relative thereto, the cutting edge projecting from the peripheral edge by a predetermined distance;
- and
- c. a guard selectively rotatable on the shaft, the guard having an arcuate portion extending beyond the cutting edge when the rotary cutter is in storage position and at least one ridge to facilitate rotation thereof by a user, the method comprising:
- engaging said at least one ridge to rotate the guard from the storage position to expose a portion of the cutting edge;
- and
- guiding the cutter over a surface of the material applying sufficient downward force on the blade to cut the material.
4 more elements
Dependencies are inferred from the claim text.