US 5,141,205 AGranted

Nail remover

AssigneesOkabe Co., Ltd., Iwai Industry Co., Ltd.

InventorsHideo Iwai, Mikihiko Yoshida, Michiharu Obata, Yoshiyuki Okayasu

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Abstract

A nail remover according to the present invention includes a tool head having a guide bore extending linearly through the head in a longitudinal direction, a push-rod slidably mounted in the guide bore of the head between a retracted position at which a free end of the push-rod is located in the guide bore and an extended position at which the free end of the push-rod protrudes from the guide bore, a driving device for advancing the push-rod from the retracted position to the extended position, and an actuator for activating the driving device. At least a portion of the peripheral wall defining an outlet of the guide bore is tapered toward an outboard edge of the wall so as to make it easy to introduce a nail into the guide bore. In operation, the guide bore receives the portion of a nail protruding from a plate such as a piece of plywood. Then the nail is straightened by aligning the guide bore with the axis of the nail and, thereafter, the push-rod is driven towards the extended position so as to drive the nail out of the plate.

Claims6

Dependent claims

A nail remover comprising:

a tool head having a guide bore extending linearly through said head in a longitudinal direction so as to have an outlet at one end of the tool head and a rear opening at the other end of the tool head, and a pair of flat planar outer surfaces inclined relative to said longitudinal direction and converging toward one another in a direction toward said one end of the tool head, said flat planar surfaces terminating at the outlet of said guide bore such that a portion of said tool head leading up to the outlet of said guide bore has a tapered outer configuration;
a push-rod slidable in said tool head between a retracted position at which a free end of said push-rod is located within said guide bore and an extended position at which the free end of said push-rod protrudes from the outlet of said guide bore;
driving means for moving said push-rod between said retracted position and said extended position, said driving means comprising a housing having a cylinder therein, and a piston slidably mounted in said cylinder, said push-rod being fixed to said piston and extending from the center of a front surface thereof, and said tool head being fixed relative to said housing so as to be immovable relative thereto;
and
actuator means for allowing a supply of compressed air to be selectively introduced to and discharged from said cylinder to pneumatically operate said piston.

2 more elements

Dependencies are inferred from the claim text.