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Патент USA US3087234

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April 30, 1963
Filed Aug. 12, 1957
5 Sheets-Sheet 1
Sv-spus/v AER/v14
April 30, 1963
Filed Aug. 12, 1.957
5 Sheets-Sheet 2
April 30, 1963
Filed Aug. 12, 1957
5 Sheets-Sheet 5
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April 30, 1963
Filed Aug. 12, 1957
s Sheets-Sheet 4
BY (kw/u“
April 30, 1963
3,087,227 \
5 Sheets-Sheet 5
/ //05
United States Patent
Patented Apr. 30, 1963
similar recess 37 of a size and shape to center and support
the plastic sheet C which is to cover the skeleton of the
Stephen Lerma, 141—-19 73rd Ave., Flushing 67, N.Y.
Filed Aug. 12, 1957, Sex‘. N0. 677,665
1 Claim. (or. 29-3)
The female 20 which cooperates with the male dies just
described is shown in the upper half of FIGURE 4. The
numeral 21 designates a head attached to a piston 27,
carrying upon its underface a rim or wall 41 generally
similar to the wall 30 except that the thickness of this
wall 41 corresponds to the dimensions of the sides of the
This invention is a machine for making buckles for
garments and the like, and more particularly for cover
ing the metallic frame for such a buckle with a covering
material such as cloth, leather or plastic, but which, for 10 completed covered buckle.
Fitting within the wall 41 is a core 42, and surrounding
convenience, will here be spoken of as plastic. The skel
the wall 41 is a centering peripheral block 43. The core
eton frame, as here shown, may comprise a rim of a
42 and the centering block 43 are connected for coordi
skeleton A, forming a hollow square having a cross bar
nate movement by a pin 44 movable in slots 45 in the
B connecting the mid-point of two opposite sides. The
rim is deeply dished in cross-section, giving a shallow 15 wall so that they may slide up and down relative to the
wall, and yet be limited in the amount of such movement.
under face, and in the manufacture of the buckle a fabric
Springs 46, carried in recesses in the core urge the core
to its lowermost position as shown in FIGURE 4. A
latch 47 pivoted on the head 21 is spring pressed to engage
or plastic sheet C is bent around the convex surface so
formed and folded up into the hollow of the rim. An
inner frame D is then forced into the hollow over the
edges of the plastic, and the edges of the plastic C‘ and 20 a shoulder 48 on the block 43, so that the core and block
cannot be moved upwardly relative to head 21 until the
rim A are clamped down over the inner frame.
catch is released.
This invention relates to a new and improved machine
The ?nishing head (see lower left hand corner of FIG
URE 4) comprises a block 50, also attached to the slide
cally, and of a more reliable quality. The machine of
this invention is hereinafter described and is shown in the 25 24, to which there is fastened a ?at plate member 51 hav
ing an upstanding wall 52 of substantially the same hori
accompanying drawings, in which FIGURE 1 is a side
zontal cross section as the wall 30', but having a more
elevation of the device. FIGURE 2 is a fragmentary
sharply pointed central ridge 53. Within the wall 52 is
section of the line 2-—2 of FIGURE 1 looking in the di
a core or die 54 which is spring pressed upwardly by
rection of the arrows. FIGURE 3 is a fragmentary sec
tion on the line 3—3 of FIGURE 1, looking in the direc 30 springs 55, and it is guided in its upward movement and
limited in the upward travel by screws 56, screwed into
tion of the arrows. FIGURE 4 is a fragmentary central
it, ?tting in slots 57 in the wall. On the outer side of the
vertical section on a plane parallel to the plane of the
wall 52 is a centering peripheral member or die 58 also
paper as shown in FIGURE 1. FIGURE 5 is a section
slidable on the wall, and urged upwardly by springs 59.
on the line 5—5 of FIGURE 4. FIGURE 6 is a section
of the line 6——6 of FIGURE 4. FIGURES 7, 8, 9, 10 35 The core 54 and the member 58 are connected for co
ordinate movement by a pin 60 extending through them
show details of successive steps in the fabrication of a
both, and sliding through a slot 61 in the wall between
buckle, all being fragmentary sections through one side
v them.
of the dies. FIGURE 11 shows the electric circuit for
The upper edges of the core 54 and the member 58,
controlling the apparatus, and FIGURE 12. is a perspec
where they face each other, are bevelled, as shown at 62
tive view of a complex buckle.
40 to assist in forcing the plastic to enter between the edges
This machine comprises generally, a female die 20‘ car
of the skeleton to the interior.
ried upsides down upon a vertically reciprocatory head
The operation of the dies is as follows:
21, and two cooperating male dies 22 and 23, mounted
for making such buckles more easily and more economi
In the manufacture of a buckle a metal skeleton A is
upon a slide 24 in such a manner that they can be alter
nately brought into cooperating position with the female 45 laid upon the top of the wall 30 as shown in FIGURE 4,
with the concave side of the rim ?tting over the convex
die. This movement of the slide 24, carrying the male
face of the wall 30‘. The recess 35 is of a dimen
dies is accomplished by a piston and cylinder 25 operating
die 20 is accomplished by a piston and cylinder 27. The
sion to assist in this centering movement.
Thereafter, a pre-cut strip of plastic C is laid over the
Before taking up the mechanism for operating these
block 43 with the plastic and then carrying it down
a piston rod 26.
The vertical movement of the female
die, 22, as here shown is the initial or forming die, and 50 ' skeleton and is itself centered by the recess 37 into which
it ?ts. The die 21 is then depressed, thus ?rst engaging
the die 23 is the ?nishing die.
around wall 30, as shown in FIGURE 7, until the plastic
folds itself around the skeleton, and both of them are
‘of each die, and the functions it is to perform.
The forming die 22 (see FIGURE 4) comprises a base 55 pressed up into the space between the core 42 and the
block 43 as shown in FIGURE 7. During this move~
7 block 28 which may be cylindrical in form, which is at
ment the relative position of the wall 41 and of the core
tached to the slide 24. ‘A rectangular block 29 of almost
42 and block ‘43 is maintained because’ of the latch 47
the size and shape of the ?nished buckle is mounted on
dies in proper sequence, we will describe the construction
the block 28 and has its upper face hollowed out to leave
a peripheral wall 30 of a size and shape to ?t into the hol
low of the rim A of the buckle. A centering peripheral
which prevents relative movement between wall 41, core
member 31 is slideably mounted on the outside of the
block 29 and is urged upwardly by a spring 32. Its up
permost position is determined by a screw 33 in the pe
ripheral member 31, ?tting into a slot 34 in block 29.
42, and block 43.
As the die 20‘ rises, the partially ?nished buckle, com
prising the curved plastic with the metallic skeleton within
it, is left within the female die, as shown in FIGURE 8.
Meantime, an inner frame D has been laid upon the top
sition has a recess or cut-out 35 surrounding the top of
of the wall 52 lying between the core 54 and the mem
ber 58.
The forming die is then moved out from under the die
the wall 30. This recess has its vertical face 36 spaced
far enough from the wall 30 and its bottom face 36a far
die 21 in this position will ?rst cause the latch 47 to en
The peripheral member 31, when in its uppermost po
21 and the ?nishing die takes its place. A depression of
enough below the top of the wall to permit the skeleton 70 gage a cam 70 on the member 58, releasing the latch 47
from engagement with the shoulder v48» so that any pres
frame of a buckle to rest within it while ?rmly resting on
sure upward on the blocks 42 and 43 will cause them to
the top of the wall. This peripheral member 31 has a
move upward relative to the wall ~41 because the springs
46 are materially weaker than springs 59‘ and 55.
in position to contact the ?nger 1'17, and it has on its
outer end a roller 11419. An arm 120 carried by the head
On depression of die head 21, therefore, while in regis
21 is in such position that \on its upward stroke it will
try with the ?nishing die, the core 42 and the block 43
yield until they engage the head 21, at ‘which time the
push the lever 118 inwardly, depressing the ?nger 117
partially ?nished buckle has been forced down to the posi
operated through the contact 1-'15-to energize the primary
and closing the switch 114, as seen in FIG. 11.
tion shown in FIGURE 9, and during this movement the
of the'transformer 103.
projecting ends of the plastic are bent inwardly toward
Since in each position of the slide one or the other of
the center by the bevelled surfaces 62. The further de
the switches 106 and 107 is closed, and the other opened,
pression of the head 21 depresses the core 54 and member 10 it will be clear that on the depression of switches 93 and
58 until the inner frame D is pushed upwardly and into
94 the solenoid 71 will be energized to depress the head
the interior of the rim of the skeleton, during which move
21 until it engages the die 22, or the die 23, dependent on
‘ ment the downward projecting sides of the skeleton itself
which position the slide is in. When (the switches 93 and
are ‘bent inwardly to embrace the inner frame as shown
94 are released the head 21 rises upwardly, to its upper
in FIGURE 10 thus holding all parts of the buckle ?rmly 15 position. During this movement the arm ‘120 engages the
roller 119, actuating the solenoids .1011, or 1102, depend~
The piston and cylinder 27 for vertically moving the
ing upon what switch is closed. It will be seen that the
female die are operated by an electrically controlled down
slide is moved alternately from one position to another,
stroke control mechanism, here represented as 71. This
as soon as the vertical head 20 reaches its uppermost posi
may be of conventional form.
This control is energized from a main line 90 by the
A light switch 121 is mounted beneath the arm 120
following mechanism in sequence: A line switch 91 is
and controlls the circuit, to operate a signal light 122,
connected by a wire 92 to two manual switches 93 and 94,
indicating that the closing operation is completed.
and then through a line 95 to the solenoid operating
The operation of the device will be clear from the de
mechanism 71, returning back to the line by a wire 95A, 25 scription given. The machine, when idle, is electrically
and thus, the switch 91 being closed, the solenoid 71 and
dead, the circuit being open at the switch 911. This switch
hence the female die may be operated only by simul
taneously depressing switches 93 and 94. One of these
switches is on one side of the machine, and the other on
the opposite side, so that both hands are required to
operate them.
The for-ward and back pistons 25 are also of a conven~
tional type, having a separate electrical control mecha
nism for each movement. These are all of conventional
design and need not be shown in detail. In the wiring
diagram of FIGURE 11 these are represented by separate
solenoids ‘101 and 102; 101 being intended for the for
ward movement of the piston, to place the forming die
in registry, and solenoid 102 for the backward movement
is closed at the beginning of operations.
The switches '93 and 94, on opposite sides of the ma
chine, are so arranged that they cannot be operated by
one hand, so that both hands are required toiactuate the
machine. The buckle frame, as shown in FIG. 12, let
tered A, is laid in the forming \die within the recess 35',
thereupon the covering material C is laid over it within
the recess 37. With the pants in this position, switches
35 93 and 94 are simultaneouly actuated, thereby energizing
solenoid 71, moving the piston assembly 27 to bring the
die 20 into engagement with the forrningdie. As soon
as block 43 engages member ‘31 it forces member 31
of the slide, to place the ?nishing die in registry. Both of
downwardly, because it, itself, is locked at 48. This
bends the plastic sheet around the edges ofrthe buckle
these solenoids are operated from a transformer 103, re
skeleton, as shown in FIG. 7.
As soon as the die .20
ducing the voltage from 110 to 10, and as here shown,
reaches the bottom of its stroke, it goes up‘ ‘again, tak
one side of the secondary of the transformer is connected
ing the buckle frame and-the plastic with it, as shown in
FIG. 8.
by a wire 104 to each of the solenoids 102 and 101, while
the other side is connected by a wire 105 to a switching 45
The inner frame of the buckle D may then be inserted
mechanism composed of switches 106 and 107. Both of
in the ?nishing die 23, above the wall 53.
these switches are mounted adjacent to the slide 24 and
The upward movement of head 21 actuates switch 114
one of them, v106, makes contact when the slide is in the
to move the slide 124, carrying the forming die out of the
forward position, and the other, 107, makes contact when
way of the female die and to bring the ?nishing die into
the slide is in retracted position. (See FIG. 2.) Each of
these switches is of a conventional form, comprising a
The switches 93 and 94 are then again simultaneously
body 106a or 107a, containing the switch and an extend
closed and the female die, carrying the partly ?nished
ing ?nger 108 or 109, the switches being so arrangedthat
buckle descends upon the ?nishing die, in the condition
when the ?nger is depressed, contact is made, and when
seen in FIG. v8. When the dies 54 and 58 come in contact
the ?nger is released the contact is broken; and the slide
with the cover member on the partly formed ‘buckle,
the projecting edges of the plastic are bent inwardly by
24 has two arms, 1'10 and 111, so situated that when the
slide is in a forward position the ?nger 108 will be de
the inclined face v62, as shown in FIG. 9'.
pressed, and when the slide is in retracted position the
A further depression of the head 21 forces the mem
?nger 109 will be depressed.
bers 54 and 58 downwardly, until the tapered surface,
comprising the upper ‘edge of the wall '53 pushes the in
These switches 106 and -107, however, do not them
selves make or break the circuit, they only determine
terior element D into the interior of the concavity of the
which direction the slide will move. The energization is
edge strips of the buckle skeleton. As the head continues
controlled from the primary circuit of the transformer.
to descend the edge strips of the buckle skeleton en
The primary of the transformer 103‘ has one side con
counter the inclined bevels 62, and are themselves, in
nected by a wire 1112 to the incoming line'90‘. The other 65 turn, bent inwardly beneath the bottom .of the inserted
side of the primary is connected by a wire 113‘ to a switch
strip. As shown in FIG. v10, the buckle is new complete.
114, mounted on the machine frame and operated'by
It can be lifted outof the device as soon as it is raised.
the vertical movement of head 21. From switch ‘114
As the head goes up, however, the switch r114 is again
it passes through a contact 115 on switch 93 to'wire92.
actuated, to energize the-solenoid 102, to bring the form
The switch 114 which actuates this circuit is best shown 70 ing die again into registry for the beginning of the next
in FIGURES 1 and 3. This ‘switch comprises a switch
body ‘116 mounted on the frame, the switching elements
What I claim:
being controlled by a depressable ?nger 117, the depres
A framework supporting a female die for vertical
sion of which actuates the switch. This ?nger 117 is
movement, a forming die and a ?nishing zdie attached to a
depressed by a lever 118 pivoted to the switch body 116 75 common base, and means for sliding said base to bring
said dies alternately into accurate registry with said female die, said forming die having a wall on which a
buckle frame may be placed and thereby centered, and a
References Cited in the ?le of this patent
table surrounding said wall, vertically movable and spring
Steedman —————————— —— Dec- 15» 1917
supported relatively thereto on which a buckle cover may 5
Lapham ———————————— —— June 20‘: 1933
be placed, said female die having a recess comprising
channels therein conforming in shape to the buckle frame
upon said wall, but the width of said channels being
greater than the side bars of the buckle, whereby when
McDonough —————————— —— May 8’
Ernst —————————————— —— July 30»
Lflmb ——————————————— —— July 6’
Tledman ———————————— —- APY- 29’
the female die is depressed in registry with the forming 10
Cross ______________ __ Apr. 30, 1957
die, the buckle cover will be folded over the frame and
Spendel ————————————— -— July 8’ 195 8
both will be forced into said channels in the female die.
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