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Патент USA US3055079

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Sept. 25, 1962
|_. H. MORIN
3,055,069‘
PLASTIC SCOOP FOR SEPARABLE FASTENER STRINGERS
Filed April 5. 1960
fig- 5
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INVEN TOR.
Lou/5 /-/. Mom/v
BY
H TTORNE Y
i
tts
l
CC
3,055,069
Patented Sept. 25, 1962
2
said coupling end portion having the more or less
3,055,069
PLASTHC SCGGP FOR SEPALE FASTENER
STREQGERS
Louis H. Morin, Bronx, N.Y., assignor to Coats & Clark
Inc, New York, N.Y., a corporation of Delaware
Filed Apr. 5, 1%9, Ser. No. 20,062
1 Claim. (Cl. 24-20513)
This invention relates to scoops of separable fastener
diamond-shaped coupling head 18, inwardly of which are
the opposed recesses 19 receiving the heads 18 of ad
jacent stringers, as will be apparent from a considera
tion of FIGS. 4, 5 and 6 of the drawing.
Inner side surfaces of the heads 18 are flat or of
what may be termed a Zero angle, as indicated at 20
to establish a positive coupling engagement between
coupled scoops, as will appear from the engagement at
stringers, preferably formed of plastics, such as Deirin. 10 20' in FIG. 5 of the drawing. At this time, it is pointed
More particularly, the invention deals with scoops of the
out that Delrin, for example, has very slippery properties
offset center ledge-type, wherein the interlocking portions
of the scoops are disposed at one side thereof and the
opposed side of each of the scoops includes a strong rib
joining the coupling side portions in ?ared ?llets.
and, by providing these ?at engaging surfaces, the ten
dency to slip is resisted.
Extending integrally from the other side 15 of the
15 mounting end portion 13 of each scoop are shoulder
Still more particularly, the invention deals with a
scoop structure, wherein the last named side of each
portions 21 which overlie the heads 18 Of adjacent
scoops in retaining coupled stringers against transverse
scoop includes laterally extending shoulders having re
separation, as with other scoops of this type and kind.
lieved or bevelled corner portions.
The novel features of the invention will be best under
Corner portions of these shoulders are recessed or
20 beveled, as clearly seen at 22 in FIGS. 3 and 4 of the
stood from the following description, when taken to
gether with the accompanying drawing, in which certain
drawing. Extending integrally from the outer surface 23
of the shoulder portions 21 is a reinforcing rib 24, op
embodiments of the invention are disclosed and, in
posed side surfaces 25 of ‘which are slightly tapered, as
clearly illustrated in FIG. 3, simply to facilitate casting.
which, the separate parts are designated by suitable
reference characters in each of the views and, in which: 25 Side surfaces 25 may be considered to be substantially
at right angles to the plane of shoulder portions 21 and
FIG. 1 is an enlarged plan view of one side of a scoop
made according to my invention detached.
these surfaces at the base of the ribs join outwardly
flared ?llets '26, which provide a strong and secure
FIG. 2 is a side view of the structure shown in FIG. 1.
FIG. 3 is an end view of the coupling end portion of
mounting of the ribs upon the inner surfaces 27 of the
30 coupling end portions 17 of the scoops, as clearly illus
the scoop.
FIG. 4 is a sectional view through a few coupled
trated in FIG. 4. Also in this ?gure, it will appear that
scoops, the section being substantially on the line 4-4
the adjacent surfaces 23 of the shoulder portions 21
of FIG. 6.
are spaced apart when scoops of a pair of stringers are
coupled together.
FIG. 5 is a sectional view of a few coupled scoops,
Considering FIG. 2 of the drawing, it will appear that
the section being substantially on the line 5-—5 of FIG.
the outer surface of the shoulders 21 and rib 24 are
4, with parts of the construction broken away.
FIG. 6 is a plan view showing two scoops of one
in common alinement, but join the mounting end portion
stringer and one scoop of an opposed stringer in coupled
of the scoop or the side 15- thereof in an offset, as in
dicated at 29 in said ?gure.
relationship with each other and indicated, in dotted
lines, positioning of lock lugs of a lock yoke used in 40
It will appear, from a consideration of FIG. 6 of the
‘drawing, that surfaces 23 of the shoulders 21 are spaced
conjunction with stringers of the character described;
and
apart a slight extent when scoops of pairs of stringers
are coupled together, thus providing free movement of
FIG. 7 is a bottom plan View of the lug end portion
of a lock yoke employed in conjunction with stringers of
the scoops with respect to each other in coupling and un
45
the character de?ned.
coupling the scoops. -It will also appear that the ribs
24 are spaced with respect to adjacent side surfaces of
Considering FIGS. 1 to 5, inclusive, it will appear
scoops of the companion stringers. For purposes of
that each scoop is of identical construction and the
description, that part of the scoops extending beyond
scoop, as seen in FIGS. 1, 2 and 3 of the drawing, will
the beaded edges 12, 12' of the scoops will be de?ned
be generally identi?ed as the scoop 10 and the brief
‘as the coupled Zone of the scoops, as indicated by the
description of one scoop will apply to all of the several
arrows 30 in FIG. 6 of the drawing.
?gures. However, for clarity, the added scoops illus
It is in connection with this coupled zone that the
trated in FIGS. 4, 5 and 6 will be further identi?ed as
lugs of lock yokes of sliders are adapted to operate
scoops 10, 1t)’ and 10". Considering FIG. 6 of the
drawing, it will appear that scoops 1i) and 10” are 55 with scoops of the type and kind de?ned as more clearly
set forth in a companion application dealing with the
mounted on a tape 11 having a beaded edge 12; whereas,
lock yokes referred to, which application is ?led of
the scoop 10" is arranged on a tape 11' having a beaded
edge 12'.
equal date herewith. However, in order to illustrate at
least in part the engagement of the lugs with the coupled
Now returning to the speci?c showing in FIGS. 1 to
5, inclusive, it will appear that each scoop has a mount 60 stringers, a bottom view of the lug end portion of a
lock yoke is illustrated at 31 in FIG. 7 of the drawing
ing end portion 13 which is formed upon the tape and
and at 32, 33 and 34 are illustrated the longitudinally
tape bead, this mounting end portion or the opposed
spaced and staggered lugs of the yoke arranged centrally
walls 14 and 15 thereof having apertures, as at 16, to
and longitudinally of the yoke with inner surfaces 35
facilitate sewing of the scoops to the stringer tapes by
stitchings passed through said apertures but, as this fea 65 of all of the lugs in common longitudinal alinement
centrally of the yoke. The lugs 32, 33 and 34- have been
ture of the present disclosure forms no part of the
indicated diagrammatically in their engaging position in
present invention, no illustration of this sewing is in
dotted lines in FIG. 6 of the drawing to illustrate ar
dicated in FIG. 6 of the drawing in order to simplify the
rangement in the coupled zone to operatively engage the
illustration.
surfaces 25 of the ribs 24 in securely retaining a slider
Extending from the wall 14 of the mounting end por 70 in position on coupled stringers. At this time, it is
tion 13 is the coupling end portion 17' of the scoop,
also pointed out that the bevelled portions 22' on the
r
3,055,069
3
shoulders 21, in addition to facilitating coupling engage
portion and a coupling end portion, one half of the
ment of the scoops and bending of the stringers, also
provide bevelled Wall portions, over which the lugs 32,
of which are recesses for receiving the coupling heads
33 and 34 are free to ride in movement of these lugs
into locking engagement with the ribs 24, as more clearly
set forth in said companion application.
By virtue of the offsetting and staggering of the lugs
32, '33 and 34, looking engagement is established with
the three adjacent coupled scoops, as illustrated in FIG.
coupling end portion having a coupling head, inwardly
of adjacent scoops of coupled stringers, the other half
of the coupling end portion of the scoop having side
shoulders cooperating with the heads of adjacent scoops
of coupled stringers, a central projecting reinforcing rib
extending integrally from the coupling head of the
coupling end portion, outer surface corner portions of
6 of the drawing.
10 said shoulders being bevelled, said coupling head adapted
For purposes of description, the coupling end portion
to be spaced from the side shoulders of a corresponding
17 of the scoops may be said to de?ne the coupling half
coupled scoop, and said rib having sloping side walls
of the scoops; whereas, the opposed half, having the ribs
with outer portions substantially at right angles to the
24 thereon, may be said to de?ne the slider locking half
plane of said shoulders and inner ?at bevelled portions
of the scoops, this last named half including the shoulder
portions 21 cooperating with the coupling heads 18 of
the coupling half for retaining coupled stringers against
transverse separation, it being understood that the en
of substantial area adjacent to said shoulders, the dis—
tance between the bottom of each recess and the outer
edge of each shoulder of said scoop being greater than
the distance between the outermost portion of each
inner ?at bevelled portion and the outer edge of said
gaged coupling heads, as illustrated in FIG. 5, retain
the stringers against lateral or pull apart Separation. 20 head, thereby enabling said sloping side walls to engage
These interengaging and cooperating portions of the
the outer edges of the heads of coupled scoops to insure
scoops are arranged within the coupled zone 30, as are
said spacing between said coupling heads and said side
also the ribs 24.
~
With my improved scoop, it will appear that the outer
end of the ribs extend to and are ?ush with the outer 25
ends of the coupling end portions. Further, the ribs
are of a
coupling
struction
FIGS. 4
depth substantially equal to the depth of said
end portions and both of these phases of con
will clearly appear from a consideration of
30
and 6 of the drawing.
Having fully described my invention, what I claim
as new and desire to secure by Letters Patent is:
A separable fastener stringer scoop, comprising a cast
unitary scoop body, said body having a mounting end
shoulders.
References @ited in the ?le of this patent
UNITED STATES PATENTS
2,067,735
2,355,996
2,720,015
2,790,223
2,798,274
2,798,275
Silberman ____________ __ Jan.
Morin ______________ __ Aug.
Morin ______________ __ Oct.
Morin __________ ___.____ Apr.
Morin ______________ __ July
Morin ______________ __ July
12, 1937
15, 1944
11, 1955
30, 1957
9, 1957
9, 1957
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