U.S. patent number 3,874,578 [Application Number 05/462,313] was granted by the patent office on 1975-04-01 for jaw member-die member assembly.
This patent grant is currently assigned to William Prym, Inc.. Invention is credited to Chester B. Derr, Bernhard P. Nysten.
United States Patent |
3,874,578 |
Derr , et al. |
April 1, 1975 |
JAW MEMBER-DIE MEMBER ASSEMBLY
Abstract
A jaw member-die member arrangement, for releasably and
exchangeably holding and aligning in the jaw member, a plurality of
die members for attaching various fastener members to a fabric,
comprising a jaw member having a base surface and side walls
forming a dovetail guide slot. A plurality of die member means hold
various fastener members and each have a frustoconical base. The
frustoconical bases each have a diametric periphery substantially
complementary to the cross-sectional shape of the dovetail guide
slot, and means are provided on the jaw members for holding in
position the frustoconical base from shifting in the guide
slot.
Inventors: |
Derr; Chester B. (South
Woodstock, CT), Nysten; Bernhard P. (Aachen, DT) |
Assignee: |
William Prym, Inc. (Dayville,
CT)
|
Family
ID: |
23835989 |
Appl.
No.: |
05/462,313 |
Filed: |
April 19, 1974 |
Current U.S.
Class: |
227/144;
29/243.517; D8/52; 81/421 |
Current CPC
Class: |
B25B
7/02 (20130101); A41H 37/006 (20130101); Y10T
29/53717 (20150115) |
Current International
Class: |
A41H
37/00 (20060101); B25B 7/02 (20060101); B25B
7/00 (20060101); B25c 007/00 () |
Field of
Search: |
;29/268,243.52,243.56,243.5 ;81/421,422,423 ;30/363 ;227/144 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Jones, Jr.; James L.
Claims
We claim:
1. A jaw member-die member assembly, for releasably and
exchangeably holding and aligning in the jaw member a plurality of
die members for attaching various fastener members to a fabric,
comprising
a jaw member having a base surface and side walls forming a
dovetail guide slot,
a plurality of die member means for holding selectively fastener
and fabric-working members, each of said die member means having a
frustoconical base,
each of said frustoconical base having a diametric periphery
substantially complementary to the transverse cross-section of said
dovetail guide slot, and
means on said jaw members for holding said frustoconical base in
position against shifting in said guide slot.
2. The jaw member-die member assembly, as set forth in claim 1,
wherein
said jaw member is made of a resilient material, and said die
member is made of a resilient material.
3. The jaw member-die member assembly, as set forth in claim 1,
further comprising
a pliers having two of said jaw members on one end thereof and
aligned cooperatively to approach one another when said pliers are
pressed closed.
4. The jaw member-die member assembly, as set forth in claim 1,
wherein said means comprises,
a stud piece projecting from said base surface of said jaw member
into said guide slot, and
said base of said die members formed with a recess on a bottom
thereof complementary to said stud piece.
5. The jaw member-die member assembly, as set forth in claim 4,
wherein
said side walls of said jaw member extend completely from one
lateral side of said jaw member to the other.
6. The jaw member-die member assembly, as set forth in claim 1,
further comprising
a hinged tool having two of said jaw members on an end thereof
aligned facing each other and adapted to be hit with an impact
member.
7. The jaw member-die member assembly, as set forth in claim 1,
wherein
said side walls of said jaw member extend only to one lateral side
of said hinged tool, and adjacent the other side constituting said
means is a rear frustoconical wall curved slightly greater than 180
degrees and substantially complementary in shape to said
frustoconical base of said die members.
Description
The present invention relates to a fastening means, and more
particularly, to fastening means, comprising interchangeable die
members, for punching holes, setting eyelets, and assembling of
snap fasteners, and the like.
Die members are known for setting various items onto a fabric, for
example, eyelets, grommets for punching holes therein, or
assembling four part snap fasteners thereon and the like.
Effectiveness and ease of use, as well as interchangeability of the
die members are of prime consideration.
It is an object of the present invention to provide interchangeable
die members which are easily manufacturable, and moldable of
plastic material, or metal, and may be conveniently and readily
used with ease by a lay person on fabrics and paper for punching
holes, setting eyelets, assembling four part snap fasteners with
prong rings, assembling four part snap fasteners with decorative
caps, assembling four part snap fasteners and back plates for
snap-on button shells, assembling grommets, studs and nailheads,
and the like.
It is another object of the present invention to provide a
plurality of interchangeable die members for accomplishing the
above-mentioned purposes, which die members can selectively be used
either with a hammer alone, or can be easily mounted in a plier
type tool, or in a hinged plastic tool to be utilized in connection
with a hammer, including indexing means for releasably holding the
die members in alignment in the tools for performing readily the
above-mentioned operations.
It is another object of the present invention to provide a jaw
member-die member arrangement, for releasably and exchangeably
holding and aligning in the jaw member a plurality of die members
for attaching various fastener members to a fabric, comprising a
jaw member having a base surface and side walls forming a dovetail
guide slot, a plurality of die member means for holding various
fastener members each having a frustoconical base, the
frustoconical bases each having a diametric periphery substantially
complementary to the cross-sectional shape of the dovetail guide
slot, and means on the jaw members for holding in position the
frustoconical bases from shifting in the guide slot.
It is yet another object of the present invention to provide a jaw
member-die member arrangement in accordance with the previously
mentioned objectives wherein the jaw member is made of a resilient
material, and the die member is made of a resilient material, e.g.
of plastic.
It is still another object of the present invention to provide a
jaw member-die member arrangement in accordance with the previously
mentioned objectives further comprising pliers having two of the
jaw members on one end thereof and aligned cooperatively to
approach one another when the pliers are squeezed.
It is still yet another object of the present invention to provide
a jaw member-die member arrangement in accordance with the
previously mentioned objectives wherein the above-mentioned means
comprises a stud piece projecting from the base surface into the
guide slot, and the base of the die members are formed with a
recess on a bottom thereof complementary to the stud piece.
It is yet another object of the present invention to provide a jaw
member-die member arrangement in accordance with the previously
mentioned objectives wherein the side walls of the jaw members
extend completely from one side of the jaw member to the other.
It is further another object of the present invention to provide a
jaw member-die member arrangement in accordance with the previously
mentioned objectives further comprising a hinged tool having two of
the jaw members on an end thereof aligned facing each other and
adapted to be hit with an impact member.
It is further still another object of the present invention to
provide a jaw member-die member arrangement in accordance with the
previously mentioned objectives wherein the side walls of the jaw
members extend only to one side of the hinged tool and adjacent the
other side is a rear curved frustoconical wall curved slightly
greater than 180 degrees and substantially complementary in shape
to the frustoconical base of the die members.
With the above and other objects in view, the present invention
will become readily understood in connection with the accompanying
drawings, of which:
FIG. 1 is a side elevation of a pliers in accordance with the
present invention, adapted to releasably and selectively index and
hold various die members;
FIG. 2 is a section along the lines 2 -- 2 of FIG. 1;
FIG. 3 is a section along the lines 3 -- 3 of FIG. 1;
FIG. 4 is a fragmentary, exploded view illustrating die members for
assembling two parts of a snap fastener member together and for
their use in the pliers of FIG. 1;
FIG. 5 is a fragmentary, exploded view similar to FIG. 4 but
illustrating the die members for assembling a covered prong ring to
a female snap fastener member;
FIG. 6 is a view similar to FIG. 4 but illustrating die members for
punching a hole in a fabric;
FIG. 7 is a view similar to FIG. 4 but illustrating die members for
use in assembling two interlocking eyelets to a piece of material,
including a steel rolling tool;
FIG. 8 is a view similar to FIG. 4 but illustrating die members for
fastening prong rings to a female snap fastener member and
retaining a backplate for covered buttons therebetween;
FIG. 9 is a view similar to FIG. 4 but illustrating die members
including a rolling tool for assembling one eyelet to a fabric;
FIG. 10 is a view similar to FIG. 4 but illustrating die members
including the steel rolling tool for assembling a jumbo nailhead to
a fabric;
FIG. 11 is a perspective view of a square shaped covered
nailhead;
FIG. 12 is a top plan view of a nesting die tool for circular as
well as square covered nailheads;
FIG. 13 is a side elevation of a hinged plastic tool for the die
members;
FIG. 14 is a top plan view of the opened tool of FIG. 13; and
FIGS. 15 and 17 are illustrations similar to FIG. 6, with some
parts omitted showing female dies with different openings; and
FIGS. 16 and 18 are illustrations of FIGS. 15 and 13, respectively,
when the pliers are squeezed.
Referring now to the drawings, and more particularly to FIG. 1, a
pliers in accordance with the present invention, preferably made of
plastic, comprises two members 1a and 1b, pivotally connected by a
rivet 2, and spring biased toward the apart position by a spring 2a
and having cooperative jaw portions 1c and 1d, respectively, as
well as arms for pressing the jaw portions together. The arms 1e
and 1f are curved arcuately in the same general direction parallel
to each other, up to adjacent the free ends thereof, whereat the
ends of the arms curve away from each other, the arm 1f changing
its curvature at its free end and the arm 1e is formed with finger
gripping undulations 1g, whereas the arm 1b has a smooth outermost
surface, being gripped by approximately the ball of the thumb or
the palm of the hand, this structure being provided for applying
satisfactory slip-proof gripping when a person presses the arms
together to cause the jaw members 1c and 1d to approach each other.
The arms 1f and 1ebeing of plastic are resilient, and when the jaw
portions exert pressure against each other through the die members
to be inserted, as shown in FIGS. 4 - 7, respectively, the arms
will bend closer towards one another, preventing one from exceeding
the maximum pressure and breaking the arms, thus providing a safety
overload, and permitting only the maximum pressure to be exerted by
the jaw members and the die members on the fastener parts.
The jaw members 1c and 1d are each formed, as shown in FIGS. 1 - 3
with transverse dovetail guide slots 5 formed by outwardly
converging side walls 9 extending completely across the jaw portion
from one side 3 to the other side 4 thereof. Substantially in the
center of the guide slot 5 there is formed a stud piece 6, which
projects slightly from the base surface 7 of the guide slot.
The stud piece 6 is preferably integrally formed with the pliers
during the molding thereof or may be made of a separate piece
cemented thereto, or a spring-loaded ball detent, and serves as an
indexing means for the die members to be held securely in the jaws,
yet releasable for exchange of other die members.
As illustrated in FIG. 4, the transverse dovetail guide slot of the
jaw 1c is formed to be substantially complementary to, i.e.,
tangent to opposed diametric sides of the frustoconical base
portion 21 of the die member 20 for complementary insertion of the
latter in the guide slot. The jaw members being made of plastic
permit a resiliency of the side walls 9 to grippingly receive the
frustoconical portions of the die members, which are forceably
pushed into the guide groove from a side 3 or 4 of the pliers. The
die members have a central opening or recess, which is
complementary to the stud piece 6, e.g. opening 10 of die member 20
into which opening, upon sliding of the base of the die member into
a central position in the dovetail slot in the jaw members, the
stud piece 6 snaps; consequently locking and holding the die member
centrally in proper aligned or indexed position in the dovetail
guide groove. When die members are so in position in both of the
jaw members and the fastener elements are properly aligned by this
indexing of the stud piece 6 in the complementary openings 10 in
the die members.
For example if a prong ring fastener 11 is to be secured through a
fabric to a male stud 12, a special die member 14 is provided for
the prong ring fastener 11. The die member 14 has a frustoconical
base 15 substantially complementary in its diametric extremity to
the cross-sectional width of the dovetail guide groove 5 of the jaw
member 14 and is adapted to be pressedly slided therein, being
retained by the indexing means constituting the stud piece 6 which
snaps into recess 10a formed in the base 15 of the die member 14,
as discussed above in connection with die member 20 and the upper
jaw member 1c.
The prong ring fastener 11 has an annular portion 11a which is
adapted to be placed on the upper surface 16 of a cylindrical
portion 17 of the die member 14.
A colored sleeve-like substantially cylindrical rubber or flexible
plastic insert 18 is force-fit embedded into an opening 19 in the
cylindrical portion 17 of the die member 14, and projects upwardly
therefrom, and the rubber or flexible plastic insert resiliently
holdably engages the inner periphery of the annular portion 11a of
the prong ring fastener 11 placed thereon and securely temporarily
holds the latter on the die member 14 against the surface 16,
permitting an operator to manipulate the tool without the prong
ring fastener 11 falling off until pressure is applied to the
pliers to force the prongs or teeth 11b of the fastener 11 to pass
through the fabric 23 and into locking engagement in the stud
member 12.
On the other side of the fabric, in the bottom of die member 20,
there is formed a larger opening 22 which complementarily holds the
stud member 12 at its circumferential edges 12b. The male stud
member 12 is one of a two part combination of a four part snap
fastener assembly and is inserted with its stud first into the
opening 22.
The pliers is now ready for use, and may be turned and positioned
freely in any manner since the fastener members 11 and 12 are held
and aligned by the indexed die members 14 and 20, which in turn are
securely held and aligned by the dovetail guide slots 5 and the
stud pieces 6.
Consequently, upon placing a fabric 23 between the two jaws of the
pliers and then inserting closing pressure on the arms 1e and 1f,
the prong ring 11 pointed teeth 11b, forcibly press through the
fabric 23 and enter the curved recess portion 12a of the stud
member 12 and are there bent so as to permanently interlock
together with the stud member 12, with the fabric therebetween.
Upon release of pressure on the pliers, the spring 2a moves the
jaws 1c, 1d to the open position, and the prong member 11 and stud
member 12 are released from the die members 14 and 20,
respectively, since the holding force of the die members 11 and 12
is merely a releasable complementary fit.
After both of the arrangements of FIGS. 4 and 5 have been used, one
obtains on a fabric, a four-part snap-fastener with covered
button-like appearance. The members 12 and 24 constitute the male
and female cooperating portions of the snap-fastener, and the
covered prong ring 25 serves the button-like appearance, as well as
securing of the female fastener member 24 to the fabric.
Referring now to the drawings, and more particularly to FIG. 5, the
same die member 20 is used to hold a female snap fastener member 24
in the opening 22.
A covered prong member 25, for example, a pearl covered or other
decorative button appearance such as a convexly curved shell 28 is
held in a complementary concave opening 27 formed in another
nesting die member 26. The die member 26, similar to the previously
described die members, has a frustoconical base 26a for insertion
into dovetail guide slot 5 of the lower jaw 1d, and a recess 10b
for snap holding by the stud piece 6 of the jaw member 1d for
holding and aligning the die member 26.
The pliers may now be actuated and the teeth 25b pass through the
fabric 23 (alternately the teeth may be first positioned by hand
through the fabric before actuating the pliers into locking
engagement with the member 24 similar to that described in
connection with FIG. 4. Upon release of the closing pressure, the
pliers open and the members 24 and 25 come out of the respective
die members.
Alternately the member 24 can be used to fasten to a type of prong
ring member 11 of FIG. 4, and in that case the die member 14 would
be used.
Referring now to the drawings and more particularly to FIG. 6, die
members are shown to punch holes in a fabric. A punch die member 30
is utilized having a frustoconical base 31 made of plastic material
and complementary to the dovetail guide slot 5, as discussed above,
and is pressed therein. A recess 10c is provided in the center of
the bottom of the die member 30; a metal punch 29 is secured to the
base. The base 31 has the opening 10c in engagement with the stud
piece 6 of the jaw member 1d for securing and positioning the die
member thereon. The die member 30 has the steel punch 29 at the top
integrally secured to the die member during manufacture. The punch
29 has a frustoconical cutting or punching surface, the purpose of
which is explained below.
The die member 20 is also used in this case; however, in the
opening 22 thereof, a female die member 32 made of steel, having a
cylindrical portion 33 complementary to the opening 22, is inserted
complementarily, held therein by the snug fit. The end 22a of die
member 20 rests against the steel female die 32. The female die 32
is formed with an opening 34 and a cutting edge 34A which are
aligned with the punch 29 when the pliers are squeezed, thereby
punching out a portion of a fabric 23 as the punch enters the
opening 34 of the female die 32, and bottoms against the cutting
edge 34A of opening 34.
Referring now to FIGS. 15 - 18, which are similar to FIG. 6, but
omit several elements for clarity. The configuration of the
cone-shaped punch 29 is such that when used with different washers
or female dies 32 having different internal diameters, it can be
used to punch different size holes. The punch 29 and die 32 are
made of hardened steel. As in FIG. 6, the female die 32 is formed
with an opening 34 and a cutting edge 34A, which are aligned with
the punch 29 when the pliers, are squeezed thereby punching or
cutting out a portion of a fabric 23 as the punch enters the
opening 34 of the female die 32, and bottoms against the cutting
edge 34A of the opening 34. The frustoconical surface of punch 29
allows it to be used to punch holes of different diameters in
fabrics by interchanging female die members 32 having different
internal diameters or openings 34. The openings would range within
the major and minor diameters of the frustoconical surface of the
punch 29. FIG. 15 illustrates the punch 29 and female die 32
combination for making a large hole in fabric. FIG. 16 illustrates
how the fabric is cut at edge 34A when the pliers are squeezed.
FIG. 17 illustrates the punch and die combination for making a
small hole. The opening 34 in female die 32 is smaller than in FIG.
15. The punch die member 30 is the same in both cases. FIG. 18
illustrates how the fabric is cut at edge 34A when the pliers are
squeezed, when using the female die 32 of FIG. 17.
For inserting grommets or eyelet pieces into a hole 23a (FIG. 7),
so formed in a garment, a steel rolling tool 35 is inserted, now
into the opening 22 of the die member 20 by its cylindrical portion
36, complementarily to the opening 22, whereby the rolling tool 35
is held therein. The steel rolling tool has a projection 37 thereon
and an annular curved recess 38 which is complementary to the rear
shape of an eyelet 39 for holding same.
Another nesting die member 40, formed entirely as a frustoconical
base 41 is pressed into the dovetail guide slot 5 of the jaw member
1d and the stud piece 6 enters lockingly into a recess 10d formed
centrally on the bottom of the base 41. The top of the die member
40 is formed with an annular recess 45 complementary to the rear
shape 44 of a second eyelet 43 for holding same therein. The eyelet
39 and 43 are adapted to telescope into one another and through the
hole 23a formed in the fabric by the arrangement of FIG. 6.
Upon squeezing the pliers, the top of the eyelet 43 is rolled
outwardly by the outer peripheral curve 37a of the projection 37 of
the steel rolling die member 35 and into locking engagement with
the eyelet 39 about the hole 23a in the garment.
A single eyelet 43a may be used as illustrated in FIG. 9. In this
case the steel rolling die member 35 rolls the top of the eyelet
onto the top of the fabric 23 itself. The single eyelet of FIG. 9
generally are smaller than those of FIG. 7 and the operative
dimensions of the steel rolling tool likewise is correspondingly
smaller.
In accordance with the present invention as shown in FIG. 8, a
prong ring fastener 11 may be utilized in connection with a female
snap fastener member 24 and a backplate 48. The die member 14 (same
as in FIG. 4) is used in the same manner as discussed above with
the fastener 11. The female fastener 24 of FIG. 5, is used with the
die member 20 as in FIG. 5, or the fastener member 12 of FIG. 4 may
be used. A backplate 48 is however placed on the annular ring 11a
with the teeth 11b passing through an opening 48a in the backplate.
When pressure is applied to the pliers, the teeth 11b pass through
the fabric 23 and lock with the female fastener 24 with the
backplate 48 held between the lower side of the fabric
thereagainst, and the annular portion 11a of the prong ring
fastener 11. The backplate 48 has an annular ridge 49 which is
adapted to have a button shell snap thereover (not shown) and that
button shell may be covered with a fabric to provide as for example
illustrated in U.S. Pat. No. 3,562,876, dated Feb. 16, 1971, for
"REMOVABLE FABRIC COVERED SHELL ASSEMBLY."
FIG. 10 shows the die member 20 used with the same large steel
rolling tool 35 as in FIG. 7, however used to roll inwardly the
teeth of, for example jumbo covered prong fasteners or nailheads
50, which is held in a nesting die member 51 by a complementary
opening 52 which receives the rear of the nailhead. A nailhead
normally is bare or plated metal with some having a pattern etched
or stamped on the surface. The die member 51 has a frustoconical
base complementary to the dovetail groove 5 in the jaw member and a
recess 10e to engage with the stud piece 6, as previously
discussed. When squeezing the pliers, the teeth 50a are rolled
inwardly and into the top of the fabric 23 by the outermost portion
38a of the annular recess of the steel rolling tool 35.
The openings heretofore described for nesting of the fastener parts
in the die members have been circular for circular fastener
members. However square shaped members (FIG. 11) 53 may also be
used. In this case the opening 54 (FIG. 12) can be used to nest the
prong fastener 53 of FIG. 11, as well as the circular nailhead of
for example FIG. 10.
The fastener of FIG. 11 can however, be rolled by the annular
recess of the steel rolling tool 35 of FIG. 10, since the teeth 53a
are located at equal distances from the center of the fastener 53.
For nailheads which come in many sizes and shapes, appropriate
nesting and rolling tools can be provided, adding further
versatility to the pliers.
The die members in accordance with the present invention can be
utilized in a hinged tool 56 as shown in FIGS. 13 and 14, instead
of with the pliers 1a.
The hinged tool is formed with facing dovetail guide slots 57 on
one end thereof and is hinged at 58. The dovetail guide slots 57
extend from one side 59 of the tool by parallel side walls 60 and a
cross-sectional shape complementary to the diametrical periphery of
the frustoconical bases of the die members, which were adapted to
fit in the guide slots 5 of the jaw members of the pliers.
Accordingly the same die members fit releasably and exchangeably in
the guide slots 57 of the hinged tool 56. The center of the guide
slot 57 is formed with a rear wall 61 of substantially the same
shape as the frustoconical bases of the die member and is slightly
greater than 180 degrees in extent, thereby holding the die member
therein (note portion 62), without the need for a stud piece 6 or
recess 10 as in the pliers. Since the hinged tool is plastic, as
well as the die member, the resiliency thereof permits the holding
as well as releasing of the parts.
However, the pliers may also be formed with the guide slot types of
the hinged tool, and visa versa.
The hinged tool with the facing guide grooves 57 of their jaw
members, aligns the die members and consequently the fasteners, and
with all the die member and fastener combinations of FIGS. 4 - 12
can be utilized.
Furthermore, the die members and fasteners, have universal use even
without either the hinged tool of FIGS. 13 and 14 or the pliers of
FIG. 1. Instead the die members may be placed on a surface, and the
fasteners, fabric and other die member, suitably on top, whereupon
a hammer blow is used. However the pliers and hinged tool with the
die members provide a simple and easily alignable attaching
device.
The dovetail guide slot for the lower jaw may be made larger, for
larger size fasteners, in accordance with the present
invention.
The bases of the die members which fit into the dovetail guides 5,
57 are preferably made of plastic, and the die members are colored
for ease of recognition by a user, as to which fastener it is to be
used with.
A lock may be provided to place the pliers in an non-actuatable
condition, e.g. for storage. The lock comprises (FIG. 1) an
L-shaped member 1h having an upwardly extending portion 1j, and a
base portion 1k, the latter of a smaller size and slidable in a
lower recess 1m in the plier member 1a. The plier member 1a has
another recess 1n in which the upwardly extending portion 1j of the
lock 1h slides. The other plier member 1b has a recess 1p, which
after being aligned with the recess 1n, permits the lock 1h to be
slided such that the portion 1j enters the recess 1p partly and
remains partly in the recess 1n thereby preventing movement of the
pliers. For this purpose the cross-sectional length of the recess
1p is smaller than the cross-sectional length of the lock portion
1j. In order to open the pliers, the lock 1k is slided, so that the
entire portion 1j leaves the recess 1p. FIG. 1 illustrates the
locked position of the pliers.
While we have disclosed several embodiments of the present
invention, it is to be readily understood that these embodiments
are given by example only, and not in a limiting sense.
* * * * *