Patent ID: 7000294

Claim:
A fastener driving tool comprising: a tool body: a driver guide coupled to the tool body and defining a fastener driving channel; a magazine coupled to the driver guide and arranged and constructed to store plural types of fasteners that vary with respect to a length of a corresponding fastener, wherein the plural types of fasteners are stored such that ends of the fasteners, opposite to the heads of the fasteners, are positioned within the magazine at the same reference level irrespective of differences in type, wherein only one type of the plural types of fasteners is stored within the magazine during a single driving operation; a pusher plate arranged and constructed to individually feed each of the corresponding fasteners of the plural types of fasteners into the fastener driving channel; a driver arranged and constructed to drive out each corresponding fastener fed into the fastener driving channel; a trigger operable by an operator in order to actuate the driver; an idle driving prevention device arranged and constructed to prevent the driving operation when no corresponding fastener exists within the fastener driving channel, the idle driving prevention device comprising: a stopper member coupled to the trigger and movable in response to the operation of the trigger; and a detection recess defined in an inner wall of the fastener driving channel in a position not opposing a head of the corresponding fastener that has been fed into the fastener driving channel, wherein the head of the corresponding fastener is driven via contact with the driver, wherein a restriction plate is disposed within the magazine and comprises an end portion, wherein the restriction plate is biased in a fastener feeding direction, wherein the restriction plate moves together with the pusher plate in the fastener feeding direction during the feeding of the corresponding fasteners, wherein the end portion of the restriction plate enters the detection recess when no corresponding fastener is positioned within the fastener driving channel, wherein when the end portion of the restriction plate is in the detection recess, the restriction plate engages the stopper member, inhibiting the further operation of the trigger; wherein the detection recess is disposed at a position, spaced in a direction opposite to the fastener driving direction, away from the head of the corresponding fastener having a longest available length accommodated by the magazine, when an end of the corresponding fastener fed into the fastener driving channel contacts a workpiece during the driving operation of the corresponding fastener through the fastener driving channel, wherein the end of the corresponding fastener is opposite to the head of the corresponding fastener.