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US 12,697,743 B2Granted
Adjustable blade assembly having magnetic tensioning
AssigneeAndis Company
InventorsRichard J. Tringali, Zachary Fossum, Jassen R. Miller
Life of this patent
Estimating the term…
Abstract
A hair cutting device or clipper is provided with a magnetic blade assembly. The hair cutting device includes a cutting blade, a stationary blade and a yoke attached to the cutting blade. The yoke and/or cutting blade may be magnetized to create an attractive or repulsive force between the cutting blade and the stationary blade.
Claims17
A magnetic blade assembly, comprising:
- a stationary blade having teeth extending along a first blade edge;
- a cutting blade having cutting teeth extending along a second blade edge parallel to the first blade edge, and supported relative to the stationary blade such that the cutting teeth are moveable over the stationary blade to cut hair;
- a guide member including a base and a cross-portion, the cross-portion being captured between the stationary blade and the cutting blade;
- and
- a yoke coupled to the cutting blade, the yoke comprising:
- a body extending in a parallel direction to the second blade edge;
- a bore defined by the body;
- a magnet coupled to the body of the yoke and received within the bore;
- and
- a metal bar coupled to the yoke and positioned within a recessed portion of the yoke;
- wherein the magnet is positioned between the metal bar and the cutting blade;
- wherein the magnet comprises a pair of magnets coupled to the body of the yoke and positioned below the metal bar such that a magnetic circuit is created;
- wherein the yoke is plastic;
- and
- wherein the pair of magnets generate a tensioning force between the cutting blade and the stationary blade.
12 more elements
A magnetic blade assembly, comprising:
- a first blade having teeth extending along a first blade edge;
- a second blade having teeth extending along a second blade edge parallel to the first blade edge and supported relative to the first blade;
- a blade guide assembly captured between the first blade and the second blade, the blade guide assembly maintaining a relative position of the first blade edge relative to the second blade edge, the blade guide assembly comprising:
- a guide member including a base and a cross-portion, the cross-portion being captured between the first blade and the second blade, the cross-portion having a first side facing the first blade and a second side facing the second blade;
- a yoke coupled to the second blade, the yoke comprising a body extending in a parallel direction to the second blade edge and a bore defined by the body;
- a magnet positioned between the yoke and the second blade and received within the bore;
- and
- a metal bar coupled to the yoke, wherein the magnet is positioned below the metal bar and between the metal bar and the second blade;
- wherein the magnet comprises a pair of magnets coupled to the body of the yoke and extending toward the first blade;
- wherein the yoke is plastic;
- and
- wherein the pair of magnets generate a tensioning force between the second blade and the first blade.
9 more elements
A magnetic blade assembly, comprising:
- a first blade having teeth extending along a first blade edge;
- a second blade having teeth extending along a second blade edge parallel to the first blade edge and supported relative to the first blade;
- a guide member positioned between the first blade and the second blade;
- a yoke coupled to the second blade, the yoke comprising a body extending in a parallel direction to the second blade edge and a bore defined by the body;
- and
- a magnet coupled to the yoke and received within the bore;
- wherein at least a portion of the magnet extends through a second bore defined within the second blade, the second bore extending from a first surface of the second blade to a second surface of the second blade, and wherein the magnet generates a tensioning force between the second blade and the first blade;
- and
- wherein the magnet comprises two magnets and a metal bar coupled to the yoke, the two magnets are positioned between the metal bar and the second blade, and wherein the yoke is plastic.
6 more elements
Dependencies are inferred from the claim text.