Pneumatic nailer coiled collation strip

Details Pneumatic nailer coiled collation strip Pneumatic nailer coiled collation strip

2001-09-24

2003-08-12

Rada, Rinaldi I. (Department: 3721)

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

C227S136000, C227S137000, C206S347000

Reexamination Certificate

active

06604665

ABSTRACT:

FIELD OF THE INVENTION
The present invention relates generally to pneumatic nail guns or nailers, and more particularly to a new and improved nail coil collation strip which can be utilized under a variety of environmental conditions without causing jamming of the pneumatic nail guns or tools within which such nail coil collation strips are adapted to be used.
BACKGROUND OF THE INVENTION
Pneumatically-operated nail guns, tools, or nailing machines, wherein a driver element is driven by means of compressed air so as to in turn drive a nail into an underlying workpiece or substrate, are of course well known. Such nail guns, tools, or nailing machines are exemplified by means of the nailing machine disclosed within U.S. Pat. No. 5,810,239 which issued to Stich on Sep. 22, 1998. As can be appreciated from
FIG. 1
, which corresponds to
FIG. 1
of the noted patent, the nailing machine comprises a handle portion
1
a
oriented along an axis Q and by means of which the gun, tool, or machine may be held and manipulated. A magazine
2
is adapted to hold or contain a collated strip of nails
4
wherein the individual nails
5
are mounted within a collation strip
4
a
by means of their head and upper shank portions. A body member
1
has a pneumatically-driven driver mechanism or component, not shown, disposed therein so as to repetitively impact upon each individual nail
5
, as each individual nail
5
is conveyed into the body member
1
of the tool or machine adjacent to the nose portion
3
, so as to drive each nail
5
into an underlying workpiece or substrate. The tool or machine further comprises an aimer attachment as disclosed at
6
, while a pair of separable nail guides are disclosed at
13
.
With reference now being made to
FIGS. 2 and 3
, another conventional or PRIOR ART collation strip for mounting a plurality of nail-type fasteners therein is disclosed and is generally indicated by the reference character
10
. The collation strip
10
has a substantially U-shaped cross-sectional configuration as seen in
FIG. 3
, is fabricated from a suitable polypropylene composition, and is seen to comprise a vertical spine section
12
, and an upper horizontally disposed hinged section
14
which is disposed substantially perpendicular to the vertical spine section
12
when the upper hinged section
14
is folded or bent into its horizontal disposition or orientation about a hinge line
16
integrally interconnecting the hinged section
14
to the spine section
12
. In a similar manner, a lower horizontally disposed hinged section
18
is disposed substantially perpendicular to the vertical spine section
12
when the lower hinged section
18
is also folded or bent into its horizontal disposition or orientation about a hinge line
20
integrally interconnecting the hinged section
18
to the spine section
12
. Both the upper and lower hinged sections
14
,
18
of the collation strip
10
are respectively provided with a series of laterally spaced pairs of arms or tabs
22
,
24
which together define a series of laterally spaced pockets or recesses
26
,
28
.
The pockets or recesses
26
,
28
are aligned with each other along centerlines
30
such that when the hinged sections
14
,
18
are disposed at their folded or bent positions around the hinge lines
16
,
20
so as to be disposed in their perpendicular orientations with respect to the spine section
12
, each one of the pockets or recesses
26
of the hinge section
14
will be coaxially aligned with a respective one of the pockets or recesses
28
of the hinge section
18
such that a shank portion of a nail can be accommodated and retained within such pockets or recesses
26
,
28
of the hinge sections
14
,
18
. In order to facilitate the feeding or forward movement of the collation strip
10
within a typical pneumatically-operated nail gun, tool, or nailing machine, the collation strip
10
is also provided with a plurality of laterally spaced elongated diamond-shaped holes or apertures
32
which are serially arranged along a centerline
34
within a vertically central portion of the spine section
12
. It is lastly noted that each set or pair of arms or tabs
22
,
24
which cooperate together so as to define the recesses or pockets
26
,
28
therebetween are separated from each adjacent set or pair of arms or tabs
22
,
24
by means of a vertical slit
36
,
38
which facilitates the bending of the hinged sections
14
,
18
into their horizontal states, as well as the curvature of the collation strip
10
when the same is formed into a coiled structure for incorporation within the magazine
2
of a pneumatically-operated nail gun, tool, or nailing machine
1
such as that shown in FIG.
1
.
Normally, or at least very often, such conventional pneumatically-operated nail guns, tools, or nailing machines are operated within an enclosed environment, that is, within a residence, a commercial or industrial building, and the like. However, it has recently become more prevalent to use such nail guns, tools, or nailing machines upon, for example, job sites which are open to the atmosphere and are therefore exposed to the local weather conditions and the local environment. More particularly, that means that the nail guns, tools, and nailing machines are exposed to, and are being operated under, substantially extreme temperature conditions. More specifically, if such nail guns, tools, and nailing machines were being employed, for example, during the summer months within the southwestern part of the United States, they might very easily or readily be required to be operated in an environment wherein the prevailing or ambient temperature was approximately 140° F. or higher. For example, the job site could comprise a commercial or industrial building roof, black in color, where as a result of impinging solar radiation, the ambient temperature can attain levels which are substantially higher than normal ambient temperatures officially recorded by the National Weather Service. Still further, the nail guns, tools, or nailing machines are often used at remote sites as a result of which the nail guns, tools, or nailing machines often experience jostling or vibrational forces which may adversely affect the proper retention of the nails within the collation strips. In a similar but opposite manner or sense, if such nail guns, tools, and nailing machines were being employed, for example, during the winter months within the northern part of the United States, they might very easily or readily be required to be operated in an environment wherein the prevailing temperature was approximately 20° F. or lower. It therefore becomes somewhat difficult to fabricate a collation strip for such pneumatically-operated nail guns, tools, and nailing machines which is capable of operating under such widely varying environmental and temperature conditions.
More particularly, the collation strip
10
is fabricated from a particular or suitable polypropylene composition, and when the collation strip
10
is employed within relatively high-temperature environmental conditions, it has been experienced that the collation strip becomes very flexible whereby the nail fasteners experience or undergo slippage and are no longer able to be properly secured, held, or retained within the aforenoted recesses or pockets
26
,
28
with the proper degree of slip resistance. Accordingly, several different modifications have been implemented in connection with the fabrication of the collation strip
10
in an attempt to overcome or rectify the noted operational deficiencies, however, such modifications did not in fact resolve the problems or difficulties under all environmental conditions. For example, in connection with the manufacture of the collation strip
10
, a thicker collation strip
10
was in fact fabricated in order to render the same less flexible when being used within the higher temperature ranges, and this structure in fact resolved the nail slippage and retention problems characteristic of the collation strip
10
when being used within a nail gun, tool

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