Elongated-member-driving apparatus – With means to move or guide member into driving position – Adaptable to dispense different sizes or quantities of members
Reexamination Certificate
1999-11-05
2001-01-16
Smith, Scott A. (Department: 3721)
Elongated-member-driving apparatus
With means to move or guide member into driving position
Adaptable to dispense different sizes or quantities of members
C227S120000, C227S136000
Reexamination Certificate
active
06173877
ABSTRACT:
BACKGROUND OF THE INVENTION
Field of the Invention
The present invention relates to nail magazines for power nailers and more particularly to a magazine adapted to accommodate a plurality of different length nails.
Power nailers, both of the electric and pneumatic type, have been known for many years. These nailers typically include a magazine that is adapted to hold a strip of nails which can be driven one at a time as the strip is advanced through a drive head and engaged by a reciprocating knife or hammer. Typically these magazines are adapted to hold a single size nail, therefore their flexibility is limited. While some power nailers have been provided with nail magazines that can hold different size nails, these have been generally quite bulky and expensive to manufacture. They are also sometimes difficult to use.
It is an object of the present invention to provide a nail magazine for a power nailer which can accommodate several different size nails.
Another object of the present invention is to provide a nail magazine for a power nailer which is relatively simple in construction.
A further object of the present invention is to provide a nail magazine for a power nailer which is relatively inexpensive in construction yet provides smooth and jam-free operation.
BRIEF SUMMARY OF THE INVENTION
A nail magazine in accordance with the present invention is adapted for use on a power nailer having a reciprocating nail driving element that is adapted to drive a nail positioned in the driving elements path of travel. That driving element may be a hammer or knife reciprocated electrically by a solenoid or electric drive motor, or pneumatically such as would be understood by those skilled in the art.
The magazine is formed from an elongated housing including a pair of parallel side walls which define a narrow longitudinal slot therebetween for receiving a strip of nails. The nails are of a conventional construction, e.g. ½ inch to 1 inch finish nails and may be adhered together by an appropriate adhesive or lacquer as is common in the art.
The housing's longitudinal slot has an open lower end through which the nails project. The side walls have a plurality longitudinally extending opposed channels formed therein, with the channels on one side wall opening towards an opposing channel on the other side wall to selectively receive therebetween the heads of the nails in different size strips.
The housing side walls have a nail discharge end and a nail guide is mounted on that discharge end. The guide includes a nail guide channel formed therein opening towards the slot between the side walls to receive an individual nail. A spring biasing arrangement is provided for urging a strip of nails positioned in the slot between the side walls towards the discharge end so that a nail is automatically positioned in the nail guide channel where it can be engaged by the driving element or knife.
The above, and other objects, features and advantages of the present invention will be apparent from the following detailed description of an illustrative embodiment thereof, which is to be read in connection with the accompanying drawings wherein:
REFERENCES:
patent: 3797723 (1974-03-01), Perkins et al.
patent: 4304349 (1981-12-01), Novak et al.
patent: 4375867 (1983-03-01), Novak et al.
patent: 4524896 (1985-06-01), Morrell, Jr.
patent: 4749115 (1988-06-01), Fehrs
patent: 5180091 (1993-01-01), Ota
patent: 5588577 (1996-12-01), Chen
Arrow Fastener Co., Inc.
Fitzpatrick ,Cella, Harper & Scinto
Smith Scott A.
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