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US 7,243,831 B2Granted
Fastener driving tool
AssigneeHitachi Koki Co., Ltd.
InventorsYoshinori Ishizawa, Hiroki Kitagawa, Masashi Nishida
Life of this patent
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Abstract
A fastener driving tool includes: a driver blade adapted to drive nails joined to one another into an object in order; a nose adapted to guide the driver blade and nails; and a guide surface of a projection adapted to guide a head portion of a first nail struck out into an exit hole of the nose so that the second nail is not exposed to the exit hole. The guide surface of the projection is formed to a shape identical with that of the head portions of the nails.
Claims20
A nailing machine comprising:
- a driver blade adapted to drive a nail, from a plurality of nails being joined to one another, into an object in order;
- a nose having a slot portion to receive the nail and adapted to guide the driver blade;
- a nail feeding mechanism to press the nails toward the slot portion of the nose, said nose having a projection extending outwardly from an inner surface of the slot portion toward the nail feeding mechanism,
- wherein the projection has a curved surface adapted to guide a circular head portion of a first nail struck out into an exit hole of the nose so that a second nail is not exposed to the exit hole, and
- wherein a curvature of the curved surface of the projection is formed to be same as that of the circular head portion of the nail.
2 more elements
nailing machine comprising:
- a driver blade adapted to drive a nail, from a plurality of nails being joined to one another, into an object in order;
- a nose having a slot portion to receive the nail and adapted to guide the driver blade;
- a nail feeding mechanism to press the nails toward the slot portion of the nose, said nose having a projection extending outwardly from an inner surface of the slot portion toward the nail feeding mechanism,
- wherein the projection has a curved surface adapted to guide a circular head portion of a first nail struck out into an exist hole of the nose so that a second nail is not exposed to the exit hole, and
- wherein a guide surface of the projection is formed to have a curved shape identical with that of head portion of the nail, so that a diameter of the guide surface of the projection is set to a maximum diameter of the head portion of the nail to prevent a second nail from being struck by the driver blade.
2 more elements
Dependencies are inferred from the claim text.