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Патент USA US3037261

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June 5, 1962
E. RYSER
3,037,255
COVERED SEPARABLE FASTENER
Filed May 1, 1957
'
4 Sheets-Sheet 1
2
4
FIG' 2
June 5, 1962
-
E. RYSER
3,037,255
COVERED, SEPARABLE FASTENER
Filed May 1, 1957
4 Shéets-Sheet 2
F1676 -2
H646
June 5, 1962
E. RYSER
3,037,255
COVERED SEPARABLEYFASTENER
Filed May 1, 1957
4 Sheets-Sheet 3
iE E; lyhi,
in IIHI
H || 1
June 5, 1962
E. RYSER
3,037,255
COVERED SEPARABLE FASTENER
Filed May 1, 1957
4 Sheets-Sheet 4
35b 39 40
Fig-43
United States Patent 0 ”
3,037,255
Patented June 5, 1962
2
1
members of the row, the slide fastener can no longer be
3,037,255
Ernst Ryser, Via Turconi, Mendrisio, Switzerland, assignor
COVERED SEPARABLE FASTENER
of one-half to Bertrand Voumard, La Chaux-de-Fonds,
Switzerland
Filed May 1, 1957, Ser. No. 656,306
closed at this point, since in operating the usual slider the
members will only be urged further out of their position of
alignment, which may then lead to damaging the fastener.
It is still another object of the invention to overcome
the above disadvantage in that the stringer tapes are
folded back over the legs of the associated fastener mem
Claims priority, application Switzerland Mar. 5, 1957
bers and are ?rmly interconnected immediately behind
7 Claims. (Cl. 24-2051)
the legs of the members remote from the head thereof.
In this manner a stringer sleeve is produced which
This invention relates to covered separable fasteners 10
snugly surrounds the legs of the fastener members of each
having interlocking fastener members attached to stringer
row and prevents adjacent members from mutually mov
tapes.
ing to an excessive degree transversely to the plane of the
It is known to provide at least one of the stringers of
a fastener arrangement with a covering strip which com
fastener.
It is also an object of the invention to produce a sep
pletely covers the fastener members at the outer side 15
arable fastener in which the slider of the fastener com
thereof when the separable fastener is in closed condition.
prises two plates which are situated each at one side
On the other hand, it is also known to give the fastener
of the fastener and are interconnected by a central core
members an asymmetric hook-shaped form with respect
piece, said plates being also provided with lateral guide
to a longitudinal center plane of the fastener extending
transversely to the stringer plane, the stringer tapes being 20 members which travel solely on the two stringer tapes.
Thereby a smooth quiet travel of the slider is obtained,
inserted into the interior of the hooks of these mem
and the latter is prevented from sticking to the fastener
bers. The hook ends about which pass the stringer tapes
members, which may lead to damaging the fastener.
are in this case arranged so that in the closed position of
The invention is fully disclosed in the following speci
the fastener the two stringer tapes contact each other in
the said longitudinal center plane of the fastener at the 25 ?cation of which the accompanying drawings form a part
and represent a number of embodiments of the invention
front side thereof and thus cover the fastener members
given merely by example, and in which:
against being seen from the outside.
FIG. ‘1 is a plan view of a fastener member of a ?rst
‘It has been found in actual practice that a one-sided
embodiment, prior to the insertion of the stringer tapes,
covering of the fastener members does not suffice in many
?elds of application. Therefore it is an object of the 30 FIGS. 2 and 3 are sections of lines lI-II and III—I'II,
respectively, in FIG. '1,
invention to provide a separable fastener that is covered
FIG. 4 shows the fastener member according to FIG
on both sides. According to the present invention the
1, with the stringer tapes inserted therein,
fastener members of the separable fastener are for this
"FIG. 5 is a sectional view of the ?rst embodiment
purpose symmetrically formed with respect to the stringer
tape plane, in which arrangement at the level of the lon~ 35 of the covered separable fastener according to the inven
gitudinal center plane of the fastener situated at right
tion,
‘FIG. 6 shows a section through a second embodiment
angles to the plane of the stringer tape at each side of
the head of each fastener member a portion of the
of the fastener,
FIG. 7 is a view similar to FIG; 4 illustrating a fas
stringer tape retained in the latter and associated with this
fastener member emerges in such a manner, that when
tener member of a third embodiment,
FIG. 8 is a view similar to FIG. 4 illustrating a fas
tener member of a fourth embodiment,
tener members of one of the rows of members, and the
FIG. 9 is a view similar to (FIG. 4 illustrating a fas
opposite stringer tape leaving the members of the other
row make contact in the longitudinal center plane of the
tener member of a ?fth embodiment,
separable fastener.
FIGS. 10 and 11 show a fastener member of a sixth
45
The separable fastener according to the present in
embodiment of the invention before and after the inser
vention therefore is covered on both sides owing to the
tion of the stringer tapes, respectively,
,
above described formation.
FIGS. 12 and 13 show a fastener member of a seventh
It is a further object of the invention to provide a
embodiment before and after the insertion of the stringer
separable fastener having two rows of fastener members 50 tapes, respectively,
anchored to stringer tapes, each stringer comprising two
‘FIGS. 14 and 15 show a fastener member of an eighth
the fastener is closed, the stringer tape leaving the fas
tape portions each of which is attached by an edge bead in
embodiment before and after the insertion of the stringer
the fastener members of the associated rows and emerges
at both sides from these fastener members. When the
parts, respectively,
stringer portions and thus are able to move relatively to
each other out of the plane of the fastener. When sub—
embodiment before vand after the insertion of the stringer
sequently individual fastener members have been brought
parts, respectively,
FIGS. 1-6 and 17 show a fastener member of a ninth
portions of each stringer tape emerging at both sides from 55
embodiment
before and after the insertion of the stringer
the clasp members remain disengaged and are together
tapes, respectively,
secured for example to an article of clothing only dur
FIGS. 18 and 19 show a fastener member of atenth
ing insertion of the separable fastener into said article,
embodiment before and after the insertion of the stringer
it may occur that the fastener members_of one row,
,
when the fastener is open, are not tightly gripped by the 60 tapes, respectively,
to a su?icient extent out of alignment with the remaining
FIGS. 20 ‘and 21 show a clasp member of an eleventh
FIGS. 22 and 23 show a fastener member of a twelfth
3,037,255
3
4
embodiment before and after the insertion of the stringer
wise, the fastener members 1 of this example are formed
similar to the ?rst described example and are likewise
secured to two-piece stringer tapes 6.
The fastener members 1a, 1b illustrated in FIG. 7 is
formed in two pieces while the stringer tape 8 provided
in this design is made of a single continuous band. The
hooks 9 provided on the part 1b of the fastener member
tapes, respectively,
FIGS. 24 and 25 illustrate a stringer tape used in the
fastener according to FIG. 23 in plan view and in trans
verse section, respectively,
FIG. 26 is a fastener member of a further modi?ca
tion of the invention after the stringer tapes have been
inserted,
FIGS. 27 and 28 show a stringer tape of the embodi
enter with their projections 9a into corresponding recesses
in the part 1a of the fastener member, whereby a safe
ment according to FIG. 26 in plan and sectional views, 10 connection between the two member parts 1a, 1b is in
respectively,
FIGS. 29 and 30 show a fastener member of a further
embodiment before and after the insertion of the stringer
tapes, respectively,
FIGS. 31 and 32 show a stringer tape of the embodi—
ment according to FIG. 30 in plan and sectional views,
respectively,
FIGS. 33 and 34 show a fastener member of a further
embodiment before and after the insertion of the stringer
tapes, respectively,
FIG. 35 is a fastener member of a further embodiment
sured. The hook ends surrounds by the stringer por
tions are disposed so that the two stringer tape ends
emerge from the fastener member laterally of the head
2 approximately at the level of the longitudinal center
plane b of the separable fastener. As in the ?rst de
scribed cxample, the result is thereby obtained that the
opposite stringer parts emerging from the fastener mem
bers at both sides of the head 2 contact each other in
the longitudinal center plane b of the fastener when
the latter is in closed position.
The two following examples illustrated in FIGS. 8 and
9 are built in analogous manner. Also in this embodi
ment of the invention the fastener members 1a, 1b are
formed of two parts while the stringer tapes 8 each are
bodiment, which is die~cast directly upon a stringer tape,
FIG. 37 illustrates, in plan view, a fastener member 25 in one piece. The hooks 9 of the fastener member part
1b engage corresponding recesses of the part 111 by means
of a further embodiment, which member also is die-cast
of the projections 90 so that a secure union of the two
upon a stringer tape.
fastener member parts 1a, 1b retaining the stringer tape
FIG. 38 is a fragmentary plan view of a separate
of the invention after the insertion of the stringer tapes,
FIG. 36 shows the fastener member of a further em
fastener according to the invention,
8 between themselves will be obtained. In the example
shown in FIG. 1,
FIG. 40 shows in a sectional view the separable
fastener provided with fastener members according to
thickness throughout its length, an additional projection
9b provided on the part 1b engaging a corresponding
FIG. 39 and with a slider,
FIG. 41 is a plan view of a separable fastener covered
on both sides,
to insure that the stringer tape is positively locked in
place between said parts of the fastener member. In
contradistinction to this arrangement, the stringer tape
8 of the example shown in FIG. 9 has a thickened por
tion 8a which insures a safe anchoring of the stringer
tape between the parts of the fastener member.
FIG. 39 is a modi?cation of the fastener member 30 according to FIG. 8, the stringer tape is of the same
recess in the part 1a of the fastener member in order
FIG. 42 shows, on enlarged scale, a section along line
IV-‘IV of FIG. 41,
FIG. 43 shows, on enlarged scale, a section along line
The one-piece fastener member 1 shown in FIGS. 10 to
~10
V-—V of FIG. 41, and
15 is stamped from sheet metal strips. The member 1
FIG. 44 shows, on enlarged scale, a section along line
shown in FIG. 10 comprises two fastening legs 10 which
VI-VI of FIG. 41.
are symmetrically arranged with respect to the stringer
The fastener members 1 shown in FIGS. 1 to 5 are in
plane d of the separable fastener and slightly spread apart
known manner produced by a stamping operation. These
in outward direction. Inserted between these legs 10 and
members comprise a coupling head 2 which is provided
with a recess 3 and a coupling projection 4. Each
fastener member 1 has formed thereon two outwardly
the head 2 of the fastener member 1 are the two parts of
the edge head 11!: thereof positioned in a corresponding
recess provided in the fastener member. The legs 10 are
bent hook-shaped legs 5 and is symmetrically shaped with
then forced against the head 2 of the fastener member,
respect to the plane a of the stringer tape (see FIG. 4).
thereby gripping the end portions of the stringer so tightly
The lateral surfaces of the head 2 of the fastener member
within said member that they leave the fastener member
are slightly beveled at the edges. The two stringer tapes
1 approximately at the level of the longitudinal center
6, which carry the fastener members, are formed in two
plane b of the separable fastener. The same holds true
parts. Each part of the stringer has an edge bead 7.
for the example shown in FIGS. 12 and 13. Also in this
The two stringer parts 6 are inserted each with their edge
head 7 in one of the hook openings, the leg 5 being - case the fastener member 1 comprises initially somewhat
spread-apart fastenings legs 10 which are arranged sym
pressed against the head 2 of the fastener member 1 in
metrically with respect to the stringer plane a and will
such a manner that the stringer tape portion surrounding
be forced inwardly against the head 2 of the fastener
the end portions of the hooks emerges from the mem
member after the stringer parts 11 have been inserted.
ber 1 approximately at the position of the longitudinal
center plane I) of the separable fastener extending at right 60 The length of the legs 10 is again selected so that the
stringer parts 11 emerge from the fastener members 1
angles to the stringer tape plane a. As illustrated in
approximately at the level of the longitudinal center plane
FIG. 5, this arrangement results in that the opposite
b of the separable fastener.
stringer tapes 6 contact each other laterally of the cou
In order to produce the legs 10 of the fastener member
pling heads 2 in the longitudinal center plane b of the
separable fastener when the latter is in closed position. 65 1, in the example shown in FIG. 14, slots 10a are punched
into the blank and extend in outwardly inclined direction
Obviously, a separable fastener covered on both sides is
towards the longitudinal center plane b, into which slots
thereby obtained, in which the fastener members are
the edge bead 11a of the parts of the two-piece stringer
covered-up by the stringer tapes themselves and not by
tape 11 will be inserted. Then the legs 10 are inwardly
cover-strips attached to the latter.
urged so that the stringer parts leave the fastener member
‘In order to provide a more continuous transition of
1 approximately at the level of the longitudinal center
the tape portions, laterally emerging from the fastener
plane b of the separable slide fastener (FIG. 15).
members 1, into the outer tape portion used for attach
The previously described examples of fastener members
ing the fastener, the members 1 of the embodiment ac
for separable fasteners covered on both faces according to
cording to FIG. 6 are tapered at their end remote of the
the invention have the advantage of necessitating only a
head 2 and terminate into a slightly rounded tip. Other
3,037,255
6
relatively small deformation of the hook or legs of the
fastener members after the stringer tapes have been in
serted, since the ‘free ends of the hooks or legs are al
ready directed towards the longitudinal center plane b of
the separable fastener prior to the insertion of the stringer
enter. The two stringer parts 25 are clamped between
the free ends of the arms 24 of the part 1b and the head 2
of the part 1a of the fastener member in such a manner
that these par-ts 25 emerge from the fastener members 1a,
1b laterally of the head 2 approximately at the level of
the longitudinal center plane ‘b of the separable fastener.
The fastener member part 1a of ‘the fastener member
Another form of fastener member is provided in the
shown in FIG. 35 comprises a head 2, a neck 26 and a
examples according to FIGS. 16 to 32.
foot 27, the part 1b of the fastener member surrounding
According to FIG. 16 the fastener member 1 initially
comprises two legs 12 projecting from the head 2 and sym~ 10 the neck 26 of the part In and simultaneously urging the
two stringer parts 25 against the head 2 of the part 1a‘
metrically formed with respect to the stringer plane a.
of the fastener member. The whole arrangement is
Between head 2 and legs 12 the member 1 has a lateral
again such as to cause the stringer parts 25 to emerge
contraction 13 into which the two parts of the two-piece
laterally of the head 2, approximately at the level of the
stringer tape 14 are inserted with their respective edge
beads 14a. The two legs 12 are subsequently outwardly 15 longitudinal center plane b, from the faster member of
the separable fastener.
bent by approximately 180° in order to provide hooks
Previously only embodiments of the invention have
tightly clamping the stringer parts against the fastener
been described in which the fastener members are shown
member 1 so that the stringer parts emerge from the fas
to be clamped against the stringer tapes. In con-tradis
tener member 1 laterally of the head 2 approximately at
the level of the longitudinal center plane b of the separ 20 tinction to this design, the ‘FIGS. 36, 37 show fastener
members which are die-cast directly upon the stringer
able fastener (FIG. 17). An analogous arrangement is
tapes. In the example according to FIG. 36 a one-piece
used for the examples shown in FIGS. 18, 19 and 20, 21.
stringer tape 28 is provided which has two series of longi
Apart from the somewhat different formation for head 2,
tudinally spaced slots 29 and also a center bead 30‘ sepa
contraction 13 and fastening legs 12, the fastener members
shown here are formed similar to the one illustrated in 25 rating the two series of slots 29. Fastener members 1
disposed symmetrically with respect to ‘the stringer plane
FIGS. 16, 17.
parts.
One-piece fastener members and two-piece stringer
tapes have been provided in the examples described last.
In contradistinction to that, the examples ‘according to
a are die-cast upon this tape in such a manner that the
direction to such an extent that the free ends thereof and 40
The modi?cation of the fastener member shown in
FIGS. 39 and 40 differs from that shown in FIGS. 4- and
5 in that the heads 2 are provided with nose-shaped edges
2a at their side facing the foot of the fastener member,
marginal portions of the tape 28 emerge on both sides of
the head 2 approximately at the point of the longitudinal
FIGS. 22 to 32 have one-piece fastener members 1 and 30 center plane of the separable fastener.
The fastener member 1 ‘according to FIG. 37 is also
also one-piece stringer tapes 15. The fastener member 1
die-cast upon a one-piece stringer tape 28 ‘symmetrically
indicated in FIG. 22 has shoulders 16, formed by a
to the stringer plane a, said tape 28 comprising a thick
reduced width of the section below the head 2, and fas
tening legs 17 initially projecting from the head 2 and
ened center portion and a row of longitudinally spaced
symmetrically arranged with respect to the plane a of the 09 Or slots 31. Also here the arrangement is such as to cause
Stringer tape. These legs 17, in producing the separable
the two marginal portions of the stringer tape 28 to leave
fastener according to the invention, are slipped through
the fastener member 1 laterally of the head approxi
a slot 18 provided in the one-piece stringer tape 15 (see
mately at the level of the longitudinal center plane b of
FIGS. 24, 25) and then are laterally bent in upward
the separable fastener.
the stringer parts, respectively, emerging from the fas
tener member will be positioned approximately in the
longitudinal center plane b of the separable fastener
(FIG. 23). The stringer tape 15 employed in this case is
of equal thickness throughout its entire width, contrary to
the stringer tape 15 which is provided in the example ac
cording to FIGS. 26 to 28 and has formed therein a
thickened portion 19 on each side of the slots 18. The
thickened portions 19 tightly gripped between the shoul
ders 16 and the upwardly bent legs 17 of the fastener
which edges together with the nose-shaped projections
- 5a of the hooks '5 insure that the edge beads 7 of the
two-piece stringer tape 6 are securely locked in place
within the fastener member 1. Since in addition between
the arms of the hooks 5 and the projections 5a thereof a
transition contour is provided which shows an obtuse
angle and not an acute angle as in the fastener member
member 1 insure a safe connection of the fastener mem~ 50 shown in FIG. 1, the edge bead 7 perfectly ?lls the en
bers 1 with the stringer tape.
tire space left between the hook 5 and the foot of the
The fastener member 1 provided in the example shown
fastener member. As shown in the FIGS. 39 and 40, the
in FIGS. 29 to 32 initially has a form (FIG. 29) almost
heads 2 of the fastener member are not symmetrically
similar to the one of the previously described fastener
beveled with respect to the longitudinal center plane b
member according to FIG. 22. The legs v17 are here 55 at their respective sides, but formed so that the inclined
' slipped each through a slot 20 in the stringer tape 15 and
surfaces 32, situated at the head side remote of the legs
laterally bent in outward direction towards the longi
tudinal center plane b so that the two marginal portions
of the stringer will emerge from the fastener member 1
approximately on the level of the longitudinal center
plane b. Located between the two rows of slots 20 the
stringer tape 20 has in this case a center bead 21 which is
of a fastener member VI of one of the rows, are somewhat
set back with respect to the inclined surfaces 33 pro
vided at the head side facing the legs of a member of the
other row (FIG. 40).
As indicated in FIGS. 38 and 40 the slider 34 with
its top and bottom plate exclusively slides over the tape
portions 6. This fact results in ‘a smooth travel of the
positioned at the outside of the fastener member 1 be
tween the two upwardly turned legs 17.
slider which is elfectively prevented from sticking to the
The FIGS. 33 to ~35 illustrate two examples having 65 fastener members, a defect often leading to damaging
two-piece fastener members 1a, 1b and two-piece stringer
the closure member in separable slide fasteners of con
- [tapes 25. According to FIG. 33 the part 1a of the fas
‘ tener member has ‘a head 2 from which project two fasten
ing legs 22 symmetrically situated with respect to the
ventional design.
Obviously, all described separable fasteners have fas
tener members which are symmetrically formed with re
plane a of the stringer. In assembling the two parts 1a, 70 spect to the plane of the stringer and secured to the
1b of the fastener member, the free ends of the legs 22 are
stringer tapes such that their free end portions emerge
outwardly bent at right angles (FIG. 34) so that on the
from the fastener members laterally of the coupling heads
part 1a of the fastener member a contraction is formed ' approximately at the level of the longitudinal center
into which the projections 23 provided on the arms 24 of
plane b of the fastener, namely in such a manner that
the second part 1b of the fastener member are able to 75
3,037,255
7
8
the opposite stringer parts of the two stringer tapes of
separable fastener, whereby it is practically impossible to
the fastener contact each other in the said longitudinal
open up the fastener to an excessive extent. Since the
clamping end pieces 41 immovably ?x the two rows of
center plane of the fastener (FIG. 38). Consequently
a separable fastener is produced which is perfectly cov
ered on both sides.
The interlocking heads 2 of the
fastener members in their mutual position, at any time
the correct interengagement of the co-acting fastener
fastener is sharply bent in its longitudinal direction.
Such a separable fastener may easily be used with either
members of the two rows is insured even after the fast
ener has been opened to its maximum extent.
t-is understood that the described arrangement could
also be made in case of a separable fastener which is
not covered.
side facing outwardly since it obviously has in its closure
The slide 34 of the shown separable fastener comprises
fastener members 1 of the two rows are embedded be
tween the stringer parts 6 in such a manner that they
will not come out of engagement even if the separable
two plates 34b each situated at one side of the closure
member, whichv plates are connected to each other by a
fastener covered on both sides according to the invention
central core piece 34a. The lateral edges of these plates
is also suitable for use on such articles of clothing (e.g.
?ying suits) or containers which are to be subjected to 15 34b are provided with guide members 34c facing each
other. As distinctly shown in FIG. 44, the slide 34 ex
internal pressure. This becomes immediately clear when
clusively travels along the two stringer tapes 35a, 35b
viewing the fastener member arrangement shown in FIG.
position no distinct inside and outside.
5.
A separable
If for instance an internal pressure acts upon the
separable fastener in the direction of the arrow A, then
and ‘36a, 36b, respectively, and its plates 34b provided
with the guide members 340 surround the fastener mem
the mutually contacting stringer parts situated at the
bers enveloped by the stringer parts.
outside of the fastener (in FIG. 5 the top side) are urged
apart from each other, which fact thus would automat
ically lead ‘to leakiness of the separable fastener in case
covered only at one side or not at all and in which the
It is understood that a separable fastener, which is
stringer parts though also emerging laterally from the
fastener members but contacting each other only at one
However, as may be easily understood, in the present 25 side or not at all in the longitudinal center plane when
the fastener is closed, may be provided with a slide of the
case the mutually contacting inner stringer parts are
described kind traveling exclusively upon the stringer
tightly forced against each other by the internal pressure
tapes.
so that the separable fastener can be kept in perfectly
What ‘I claim is:
sealed condition.
1. A covered separable fastener comprising stringer
In the separable fastener shown in FIGS. 41 to 44, the 30
of a fastener being covered only at one side thereof.
numerals 35a, 35b represent the two parts of one of the
stringer tapes while 36a, 3611 indicate the two parts of
the other stringer tape. A row of fastener members 1 is
secured to each of the two stringers.
The leg of the
fastener members 1 forms at each side a hook 37 (FIG.
tapes including opposite edge portions and interlocking
fastener members secured in longitudinally spaced rela
tion to said opposite edge portions of said tapes, said
tapes de?ning a stringer tape plane, said members being
symmetrical with respect to the stringer tape plane said
fastener members each comprising a coupling head, a
44) as in the previously described examples. By means
neck portion narrower than said coupling head, a shoulder
of these books 37 the edge beads 38 of either stringer
coupling said neck portion and said coupling head and
tape are tightly clamped, so that the two stringer parts
a pair of tape engaging legs, each of the legs including
laterally emerge from the fastener members approxi
mately in the zone of the coupling axis of the separable 40 a straight portion and a nose portion on said straight
portion, said nose portion being laterally adjacent said
fastener. Thereby it is obtained that the opposite parts
coupling head and directed towards said neck portion
of the two stringer tapes contact each other in the longi
to subtend ‘an acute angle with respect to said straight
tudinal center plane b (FIG. 43) of the fastener extend
portion, said coupling head having at each side thereof
ing at right angles to the plane of the fastener, when the
an outwardly divergent side surface cooperating with said
separable fastener is in closed position.
nose portion of said legs for securing said stringer tapes
The two stringer parts 35a, 35b and 36a, 36b, respec
to said members, said stringer tapes engaging the whole
tively, which emerge out of the fastener members 1 at
side surface of said neck portion and shoulder and the
the side thereof, ‘are turned back over the leg or the hooks
side surfaces of said tape engaging the legs and in locked
37 of the members 1 and are rigidly connected to each
relation therewith, said stringer tape emerging from both
other by a quilting seam 39 immediately behind the end
sides of said fastener members laterally of said coupling
face of the leg remote of the head 2. Consequently the
leg of each row of fastener members are locked in place
each snugly ?tting into a sleeve portion formed vby the
two parts of the stringer tape.
It is understood that a
plurality of quilting seams 39 extending parallel to each
other could also be used; in place of the quilting seams
39 any other connection, e.g. by stitching or adhesive
head and said nose portion on the level of the longitudinal
center plane of said fastener members and extending at
right angles to said ?rst-mentioned plane with said nose
portions holding said stringer tapes in engagement with
said outwardly divergent side surfaces of said coupling
head to contact positively the whole outwardly divergent
side surfaces of said coupling head, so that with the fast
ener closed the tape emerging from the fastener mem
the respective stringer parts may also be provided in case
of all the previously described separable fasteners.
60 bers of one stringer is in ?uid-tight contact with the
tape emerging from the fastener members of the other
At that end of the separable fastener where the slider
stringers.
34- is positioned when the fastener is closed, the two
2. A separable fastener according to claim 1, in which
parts 35a, 35b and 36a, 361), respectively, of the stringer
the fastener members of each stringer are each constituted
tapes are securely connected to each other each by means
of an end piece 40 (FIGS. 41 and 42) surrounding and 65 by a single piece and said stringer tapes each comprise
two connected pieces.
clamping together the edge beads 38. At the other end
3. A separable fastener according to claim 1, com
of the separable fastener where the slide will be located
prising a slider on the separable fastener and sliding along
when the fastener is in open position, the mutually op
the stringer tapes emerging from the fastener members.
posite parts 35a, 36a, and 35b, 3612, respectively, of the
4. A separable fastener according to claim 1, compris
two stringers tapes are securely connected to each other
ing a slider including top and bottom plates positioned
each by means of an end piece 41 (FIGS. 41 and 43)
each at one side of the fastener, a central core piece, said
surrounding and clamping together the edge ‘beads 38.
plates being connected to each other by said central core
Thereby the rows of fastener members are perfectly closed
piece, and lateral guide members on said plates exclu
at their ends; in addition the traveling path of the slide
34 will be limited particularly during opening of the 75 sively traveling ‘along the two stringer tapes.
means, could also be provided. The same connection of
3,037,255
5. A separable fastener as claimed in claim 1 wherein
said shoulder is substantially normal to the neck portion,
said tapes including an enlarged portion between the
neck portion and the tape engaging legs whereby relative
movement between the fastener member and the tapes in
a direction normal to said shoulder is prevented ‘by said
shoulder and said nose portion.
6. A fastener as claimed in claim 1 wherein each said
tape
slots
7.
tape
is provided with a series of longitudinally spaced
10
through which said neck portions extend.
A fastener as claimed in claim 1 wherein each said
includes two separate tapes each including an edge
10
portion engaged by the nose portions of the associated
fastener member.
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,791,017
M-ulka _______________ __ May 7, 1957
262,850
585,731
Italy _______________ __ Feb. 22, 1929‘
Germany _____________ __ Nov. 7, 1931
214,594
884,335
Switzerland __________ __ July 16, 1941
Germany _____________ __ July 27, 1953
FOREIGN PATENTS
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