Magnetic clamp
First Claim
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1. A magnetic clamp, comprising:
- a housing, the housing defining a base for resting on a work surface;
a friction reducing arrangement associated with the base of the housing, the friction reducing arrangement being movable relative to the base between a first position and a second position such that when the housing is on the work surface and the friction reducing arrangement is in the first position an area of contact between the base of the housing and the work surface is reduced relative to when the friction reducing arrangement is in the second position; and
a magnet which is movably arranged relative to the housing,wherein the magnet is movably arranged relative to the housing between an inactive position and an active position to establish a magnetic force acting on the work surface during operation, the magnetic force being insufficient to overcome a bias of the friction reducing arrangement when the magnet is in the inactive position and the friction reducing arrangement is in the first position, and the magnetic force being sufficient to hold the magnetic clamp securely in position on the work surface when the magnet is in the active position and the friction reducing arrangement is in the second position.
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Abstract
A magnetic clamp has a housing, the housing defining a base for resting on a work surface. An adjustable friction reducing arrangement is associated with the base of the housing. The friction reducing arrangement is movable relative to the base between a first position in which the friction reducing arrangement reduces an area of contact between the base of the housing and the work surface and a second position in which the area of contact between the base of the housing and the work surface is increased.
44 Citations
16 Claims
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1. A magnetic clamp, comprising:
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a housing, the housing defining a base for resting on a work surface; a friction reducing arrangement associated with the base of the housing, the friction reducing arrangement being movable relative to the base between a first position and a second position such that when the housing is on the work surface and the friction reducing arrangement is in the first position an area of contact between the base of the housing and the work surface is reduced relative to when the friction reducing arrangement is in the second position; and a magnet which is movably arranged relative to the housing, wherein the magnet is movably arranged relative to the housing between an inactive position and an active position to establish a magnetic force acting on the work surface during operation, the magnetic force being insufficient to overcome a bias of the friction reducing arrangement when the magnet is in the inactive position and the friction reducing arrangement is in the first position, and the magnetic force being sufficient to hold the magnetic clamp securely in position on the work surface when the magnet is in the active position and the friction reducing arrangement is in the second position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A magnetic clamp, comprising:
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a housing, the housing defining a base for resting on a work surface; a friction reducing arrangement coupled to the housing, the friction reducing arrangement being movable relative to the base between a retracted position and an extended position; and a magnet which is arranged relative to the housing to move between an inactive position and an active position to establish a magnetic force acting on the work surface during operation, the magnetic force being insufficient to overcome a bias of the friction reducing arrangement when the magnet is in the inactive position and the friction reducing arrangement is in the extended position, and the magnetic force being sufficient to hold the magnetic clamp securely in position on the work surface when the magnet is in the active position and the friction reducing arrangement is in the refracted position. - View Dependent Claims (14)
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15. A magnetic clamp, comprising:
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a housing, the housing defining a base for resting on a work surface; a friction reducing arrangement coupled to the housing, the friction reducing arrangement being movable relative to the base between a retracted position and an extended position such that when the housing is on the work surface and the friction reducing arrangement is in the extended position a frictional resistance to relative motion between the magnetic clamp and the work surface is reduced compared to when the friction reducing arrangement is in the retracted position; and a magnet which is arranged relative to the housing to move between an inactive position and an active position to establish a magnetic force acting on the work surface during operation, the magnetic force being insufficient to overcome a bias of the friction reducing arrangement when the magnet is in the inactive position and the friction reducing arrangement is in the extended position, and the magnetic force being sufficient to hold the magnetic clamp securely in position on the work surface when the magnet is in the active position and the friction reducing arrangement is in the refracted position. - View Dependent Claims (16)
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Specification