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Патент USA US2408845

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, E94.
original Filed peo. 12, 1942
mmm] mhïigf 1. > m
Patented Oct. 8, 1946
Emerson C. Gill, Melrose, Mass., assígnor to
United Shoe Machinery Corporation, Fleming
ton, N. J., a corporation of New Jersey
Original application December 12, 1942, Serial No.
468,774. Divided and thisfapplication July 12,
1944, Serial No. 544,495
6 Claims.
This invention relates to machines by which
fastenings are driven to effect the connection of
work-pieces. Machines of this character may be
employed for the attachment to shoes of heel
parts,v as bases and lifts of rubber or the like.
The present case is a division of an application
filed in my name in the United States Patent
Oflice Aon December l2, 1942, and bearing the Se
rial No.>468,774.
A second divisional application directed to the
means which insures the matching and registra
tion of the elements of the fastening-inserting
mechanism was ñled in my name on July 12, 1944,
with the Serial No. 544,494, it'having matured on
May 29, 1945, into Patent No. 2,376,910.
An object -of the invention, and in connection
I0 a die-block l2, in which are vertical passages
I4 to receive the fastenings to be inserted. These
passages may include a multiple of all the de
signs which are to be employed. The die-block is
shown as separately mounted in place by screws
i6 threaded vertically into the frame. The por
tion of the die-block with which the work con
tacts is provided by a plate i8, of which depend->
ing quills 24 are a part. These quills may be
formed integrally With the plate or made sepa
rately and ñxedly attached thereto. The plate
with its projections is carried in ways 20 at the
underside of the die and latched in place by a
spring-plunger 22, movable through said die and
entering an opening at the front of the plate. ,
The passages through the plate, corresponding to
with a fastening-inserting die or other work
those of a particular nailing design in the die,
abutment in a heel-attaching machine, such
terminate in the quills 24. 'I'he quills enter the
abutment being provided with a projection or
surface of a rubber or other elastic lift T to be
projections against which the work is pressed, is 20 attached, and compress the material over the area
to avoid interference by engagement with the
therein through which the attaching fastenings
projections upon the introduction of the heel
are to be driven. 'I‘hese fastenings pass through
parts into attaching position. This result is
this lift and a heel-base, carried at the underside
gained by combining with the abutment a yield
able guard having one or more openings within
of the die-quill-plate by holding mechanism M,
and into the heel-seat of a shoe which is pressed
which the projection or projections normally lie,
against the base by a vertically reciprocable jack
said guard presenting a plane surface to the heel
(not illustrated) upon which it is supported. The
parts. This guard may be furnished by a plate
fastenings are preferably cut from strings of liber
guided for movement upon the die and forced by
and delivered by a loader-block 30 to the die
springs into its normal position, in which the pro 30 block-passages I4. The insertion of the fasten
jections or quills are shrouded. The plate yields
ings in the Work is effected by a gang of recip
when :clamping pressure is applied, so the quill
rocatory drivers 34, which may ñrst act as awls,
ends will project outside the plate-openings for
as in the previously mentioned La Chapelle pat
engagement with the heel-part, to enter, for ex
ent. The driver-assembly operates in the corre
ample, the material surrounding the nail-pas 35 sponding group of multiple die-passages I4, it
sages in a rubber or other compressible lift.
being changed, together with the quill-plate I8,
In the accompanying drawing:
as the inserting design varies.
Fig. 1 shows, in front elevation with elements in
Were it necessary to insert the lifts into the
section, portions of a heel-attaching machine
holder M in contact with the ends of the spaced
with which the present invention is more directly 40 quills 24, there would tend to be interference with
the movement. To prevent this, the lower por
Fig. 2 is an enlarged transverse sectional de
tail through the lift-engaging elements, taken
prior to the clamping of the work; and
tions of the quills are shrouded by a guard-plate
|08. This plate is movable in a recess at the.
underside of the quill-plate I8, it being held
Fig. 3 is a View similar to Fig. 2, but with the 45 against downward displacement by the heads of
screws 102, which extend through openings in
The general organization of a heel-attaching
the quill-plate and are threaded vertically into
machine to which the present invention is ap
the guard-plate. In the guard-plate is a con
plicable may be that disclosed in Letters Patent
tracted opening 1M for the reception of each
of the United States No. 2,293,624, Parkhurst, 50 quill with relatively small clearance, the lower
August 18, 1942*, and in certain respects in No.
end of each quill lying normally above the lower
2,207,742, La Chapelle, July 16, 1940, these ma
surface of the plate (Fig. 2). In its lowered
Work under pressure.
chines being designed for the attachment of heel
bases and top-lifts to shoes. In apparatus of
this character, there is mounted upon a frame
position, the guard-plate is yieldably maintained
by expansion-springs |66 having their opposite
extremities seated in recesses in the quill-plate
and guard-plate. The underface of the guard
plate presents an extended surface free from
interfering projections when the toplifts are slid
into place in the holder M. Yet, when clamping
pressure goes upon the work (Fig. 3), as a result
of the elevation of the shoe-supporting jack in
preparation for the insertion of the fastenings
by the drivers 34, the guard-plate yields freely,
so the quills lie outside the plate-openings and
enter the substance of a rubber lift.
Having described my invention, what I claim
as new and desire to secure by Letters Patent of
the United States is:
l. In a heel-attaching machine, a heel-abut
ment provided with a projection againstv which
the work is pressed, and a yieldable guard hav
ing a, contracted opening Within which the pro
jection normally lies, said guard presenting to
heel-ports about the opening an extended plane
surface-for engagement with the tread-surfaces
of said heel-parts during their introduction into
the machine.
2. The combination with a- fastening-inserting
die provided with projections against which the
work is pressed, of a guard-plate yieldable upon
the die by contact with the work and having
openings within which the projections normally
3. The combination with a fastening-insert
ing die including a quill-plate provided with a ~"
recess, of a guard-plate guided for movement; in
the recess and having openings in which the
quills lie with their ends normally Within the
openings, and springs interposed between the
quill-plate and the guard-plate and permitting
yield of said guard-plate so the quill-ends may
project outside the openings. '
4. In a heel-attaching machine provided with
reciprocatory drivers, the combination with a fas
tening-inserting die provided with openings and
projections from its lower face through which
the openings are continued and through which
the drivers reciprocate, of a guard-plate yield
able upon the die under the iníluence of a heel
to be attached and having an opening individual
to each projection and in which said projection
normally lies shrouded by the plate.
5. In a heel-attaching machine provided with
reciprocatory drivers, the combination with a fas
tening-inserting die provided with openings and
projections from its lower face through which the
openings are continued and through which the
drivers reciprocate, of a holder for a heel to be
attached associated with the die, and a guard
plate yieldable upon the die under the influence
of. a heel to be attached and having openings into
which the projections extend, said guard-plate
presenting a surface along which a heel may be
slid into the holder without interference by the
6. In a heel-attaching machine, the combina
tion of a heel-abutment provided with a projec
tion against which the work is pressed, of a yield
able guard having an opening Within which the
projection normally lies, said guard presenting a
plane surface for engagement with heel-parts,
and a holder situated below the abutment and
into which the heel-part may be slid guided by
the plane surface of the guard.
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