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Патент USA US2405897

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Aug. 33,1946.
s, MELONE ETAL
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RIVET
. Filed March 51, 1945
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Patented Aug. 13, 1946
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T'UNITED STATES PATENT. OFFICE
_ RIVET
Samuel Milone and Charles W. Rothfeld,
Philadelphia, Pa.
Application March 31, 1943, Serial No. 481,350
6 Claims.
(CI. 85-37)
1
2
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This invention relates to new and useful imFigure 1 is a view in perspective of a rivetem
'provements in rivets, and more particularly to
bodying the present invention;
.
rivets adapted for application from One side only
Figure 2 is a view partially in section showing
of the work tobe riveted together.
the rivet inserted through aligned openings in a
In the construction and assembly of structures
pair of structural plates and in position to be set;
of metal and other materials one generally emFigure 3 is a view similar to the disclosure‘in
ployed method of attaching pieces of material is
Figure 2 showing the rivet applied 01‘ Set;
by riveting, and this is particularly true in the
Figures 4 and 5 are diagrammatic Views Par
case of aircraft and similar structures where
tially in Section Showing the manner or method
many of the parts are shaped and arranged so in by which the rivet maybe set; and
that there is not su?icient clearance or space for
Figures 6 and 7 are views showing the present
the use or insertion of the usual bucking bars. In
invention embodied in a novel bolt construction
such instances, it is necessary either to employ a
to provide for securing a nut thereon against dis
type of rivet that may be applied from one side
placement.
only of the work, or to'employ a mode of assem- 15
bly other than riveting.
It is known that rivets of the type which may
‘
Referring now more particularly to the draw
ing, a rivet embodying the present invention com
prises essentially integral and unitary head and
be applied from only one side of the work are to
Shank portions l and 2. respectively ' As shown,
be found in the prior art.
the Shank 2 is of a predetermined diameter less
However; such rivets
for the most part consist of a, plurality of sepaln V 20 than that Of the head I and includes a coaxially
able parts and are generally objectionable in that
the several parts must be assembled and also held
in assembled relation while the rivet is inserted
through the work to be riveted together. This
requires time and care on the part of theuser 2'5
extending neck p01‘ tion 3 of reduced diameter and
a shoulder ?ange portion 4 disposed in radially
spaced ctfncentric relation with respect to Said
neck Pottlon 3
The neck portion 3 of the Shank Projects Out
and generally slows down production. Furthermore, such rivets when secured in place are gen-
Wardly beyond the Spaced concentric shoulder
?ange 4 as Shown’ ttnd the base of the Saltt netk
emny of the open or “eyelet” type and this is
3 and the base of said shoulder ?ange
reside in
neither adequate nor desirable for many classes 30 z‘hcommon Plane whlch .hes crqss'sectmnany of
and kinds of Work.
_ e shank 2 1n predetermined axially spaced rela
' The present invention, therefore, contemplates
“9n “nth respect to the adJa‘ctent or undermce !a
certain improvements in rivets of the type that
the nvet head t‘ .In practtce’ and as shown m
may be applied from one side only of the Work’
igure 2 of the drawing, the distance or space be
tween the under face la. of the rivet head I and“
and the principal object of the invention is to
provide a novel rivet of the type described which 35 the plane of the bases of the neck 3 and ?ange 4
preferably is equal to the thickness of the‘ two or
comprises an integral and unitary structure.
more pieces of material that are to be secured to
Another
object of the invention is _ to provide
a
_
_
_
gether by the rivet.
Too, the axial length and
unltary nvet of the type set forth Whlch ‘S of sub“
radial thickness of the shoulder ?ange 4 in a
stantially solid construction and therefore pro- ' 40 given rivet may vary according to the size and
vides a rivet characterized by its high resistance
to shear stresses.
nature of the pieces of material to be riveted
together.
Another object of the invention is to provide a
As illustrative of the manner of applying the
novel rivet of the character described which, when
rivet of the present invention there is shown
?nally Set, fully closes the Opening in which the 45 in Figure 2, a pair of overlying metal plates A’
rivet is secured as distinguished from a rivet of
and B Suitably drilled for attachment by a, rivet;
the tubular 01“ eyelet type-
\
A further object is to embody the novel features
which is inserted through the plate holes as indi
cated_ with the rivet positioned as shown in
of the invention'in a bolt construction for secursaid Figure 2 it may then be ?nally .“se ” by
ing a nut thereon against displacement?50 grasping the neck portion 3 thereof and exerting
These and other objects of the invention and
a, pull axially on the rivet in a, direction away
the various features and details of the construcfrom the sheet B to seat and hold the rivet head
tion and application thereof are hereinafter fully
| ?rmly against the sheet A and, at the same
set forth and shown in the accompanying draWing, in which:
>
a >
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time, the shoulder ?ange 4 is spun and thereby
55 rolled outwardly over and onto the adjacent su'r'
2,405,897
3
4
\
base of the neck l6 reside in a common plane
which lies cross-sectionally of the shank in axial
tion 3 of the rivet then may be broken away to
ly spaced relation with respect to the adjacent or
provide a riveted joint constructed and arranged
under face of the head [4.
as shown in Figure 3 of the drawing.
The exterior surface of the shank l5 which
One form of device for setting the rivet is $1
resides between the head 14 and the plane of the
shown in Figures 4 and 5 of the drawing. This
bases of the neck l5 and ?ange I1 is threaded
device may comprise a pair of cooperable jaws
as indicated at E8 to receive thereon a nut l9,
6 carried on the outer end of a shaft 1 which
it being understood that the saidthreaded shank
is mounted for axial movement within a ?xedly
mounted tubular bushing 8. The interior sur 10 portion has an axial length su?icient' to extend
face of the bushing 8 at the outer end thereof is v entirely through the pieces of material A’ and
face of said sheet B. The projecting neck por
inclined or beveled as indicated at 9 and corre-‘
sponding inclined surfaces are provided on the
B’ to be secured together and, in addition, ‘to
project beyond them a distance sufficient to re
ceive a nut 19 thereon as shown in the drawing.
outer lateral surfaces of the jaws 6 as shown,
W hen the nut 19 has been threaded and tight
Mounted exteriorly of the ?xed bushing 8 for
ened on the shank 15 to the desired extent, the
both rotary and longitudinal sliding movement
shoulder ?ange I’! may then be spun or rolled
with respect thereto is a sleeve NJ the outer end
outwardly and over onto the adjacent nut sur
of which is provided with an axial opening I l and
face as shown in Figure '7, thereby preventing
formed as indicated at, l2 to provide a’ tool for
spinning or rolling over’the rivet shoulder ?ange 20 removal or loosening of the nut 19. The shoul
der ?ange i‘! may be spun or rolled over in the
4. Normally, When‘ the device is not in use,
manner and by a device such as that previously
the shaft 1 and jaws 6 are. held in their outer
described in connection with the rivet form of
mostposition longitudinally with respect to the
the invention.
_
I
a
bushing 8, and with their end faces abutting the
From the foregoing it will be seen that the pres
inner end face of the sleeve ill, by means of a
ent invention provides a novel rivet that may be
spring 13. With the jaws 6 vheld in this posi
applied from one side only of the work and which
tion by said spring 13 they reside outwardly
is of unitary solid construction providing high
along the inclined surfaces 9 .of the bushing a
resistance to shear stresses. The invention also
distance’su?‘lcient to permit said jaws to open
provides a bolt construction having a novel con
to an extent to permit insertion therebetween
of the neck 3 of the rivet.
'
When the rivet neck 3 is inserted inwardly of
the end opening llv of the sleeve 10 and between
the jaws 6, as aforesaid, the shaft ‘I and said
jaws: 6 are retracted or actuated relative to the '
?xed bushing 8 in the direction of the arrow
(Fig. 5) ’ against the action ‘of the spring 13,
struction and arrangement for securing a nut
thereon against removal, displacement and loos
ening.
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~ While particular embodiments of the invention
‘have been herein illustrated and described, it is
not intended that the invention be limited to such
disclosures but that changes and modi?cations
may be made and embodied therein within .the
thereby causing the surfaces 9 of the bushing
scope of the‘claims.
to cam the jaws 6 toward each other and clamp
.
theme}; 3 of the rivet therebetween, as shown. 40 ‘We claim:
l. A preformed .unitary headed fastening ele
The rivet is thus ?rmly held in place with its
ment comprising» a. shank of predetermined di
‘head I against plate or sheet A, and whileithe
ameterless thansaid head and including a co
rivet neck is held in this manner by the jaws 6.
axiallyextending neck portion of reducedv diame
the sleeve i0 is driven rotationally, and, at the
same time, advanced ‘relative to thebushing 8 ':~ ter and a radially spaced concentric straight
cylindrical shoulder ?ange portion, the base of
toward the sheet or plate B, thereby causing the
tool end l2 of said sleeve to engage and spin
or roll the rivet‘ shoulder ?ange 4 outwardly over
and onto the- adjacent surface of the sheet or
of said shank in axially spaced relation to said
plate B as shown in Figure 5 of the drawing. .
head.
The sleeve 10 is then retracted and the pull on
2. A preformed unitary headed fastening ele
ment comprising a shank of predetermined diam
shaft ‘I released, whereupon the spring l3 actu
ates the jaws forwardly or outwardly of the
bushing causing them to release their grip upon
the rivet neck 3 and the device then may be
removed and the rivet neck 3 broken away to
provide‘the riveted joint construction of Fig
ure 3.
'
‘
i
i
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The invention may be employed as well in con
the ?ange portion and the base of the neck por
tion being in a vcommon plane cross-sectionally
,
j
‘eter less than said head and including a coax
ially extending neck portion of reduced diameter
and a radially spaced concentric straight cylin
drical shoulder ?ange portion, said neck portion
extending axially outward beyond said shoulder
?ange portion and the base of the ?ange portion
and the base of the neck portion being in a com
junction with ‘bolts and the like where it is de
mon plane cros’s-sectionally of said shank in ax
siredto secure a nut or like element thereon
ially spaced relation to said head. >
against removal or displacement. The invention,
therefore, may be employed to advantage to look
and an‘integral shank portion of predetermined
a nuttightly upona bolt or, in the caseof nuts
which sometimes are loosely threaded on a'bolt, _a.
to prevent further loosening and removal of the
nut ‘as is sometimes accomplished at the present
time by means of cotter pins, additional lock'nuts,
and the like.
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I
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Referring to Figure 6 of the drawing, a bolt 7
embodying the present invention may comprise
a head l4 and integral shank IS, the latter; in"
cluding ace-axially extending neck portion l6
and a radially spaced concentric shoulder ?ange
H... As shown, the .base of the ?ange Hand the
3. A preformed unitary rivet comprising a head
diameter less than said head, said shank includ
ing a coaxially extending neck portion of reduced
diameter and a straight cylindrical shoulder
?ange portion radially spaced concentrically of
said neck‘ portion, the base of the neck portion
and the base of the shoulder ?ange portion being
in a common plane cross-sectionally of the shank
in axially spaced relation to the rivet head.
4. A preformed unitary rivet comprising a head
and an integral shank portion of predetermined
diameter less than said head, said shank includ
ing a coaxially extending neck portionof reduced
5
2,405,897
diameter and a straight cylindrical shoulder
?ange portion radially spaced concentrically of
bolt head and the common plane of the bases of
the shoulder ?ange and neck portions thereof.
said neck portion, said neck portion extending
6. A preformed unitary bolt comprising a head
axially outward beyond said shoulder ?ange por
and an integral shank portion of predetermined
tion and the base of the neck portion and the I) diameter less than said head, said shank includ
base of the shoulder ?ange portion being in a
ing a coaxially extending neck portion of reduced
common plane cross-sectionally of the shank in
diameter and a straight cylindrical shoulder
axially spaced relation to the head.
?ange portion radially spaced concentrically of
5. A preformed unitary bolt comprising a head
said neck portion, said neck portion extending
and an integral shank portion of predetermined 10 axially outward beyond said shoulder ?ange por
diameter less than said head, said shank includ
tion and the base of the neck portion and the
ing a coaxially extending neck portion of reduced
base of the shoulder ?ange portion being in a
diameter and a straight cylindrical shoulder
common plane cross-sectionally of the shank in
?ange portion radially spaced concentrically of
axially spaced relation to the bolt head, and
said neck portion, the base of the neck portion
threads on the exterior of said shank for at least
and the base of the shoulder ?ange portion being
a portion of the axial length thereof between
in a common plane cross-sectionally of the shank
the bolt head and the common plane of the bases
in axially spaced relation to the bolt head, and
of the shoulder ?ange and neck portions thereof.
threads on the exterior of said shank for at least
SAMUEL MILONE.
a portion of the axial length thereof between the
CHARLES W. ROTHFELD.
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