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Патент USA US2404236

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M16, 1946.
H. w. KOST
1
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2,404,236"
SHEET METAL FASTENING DEVICE _'
- Fil>ed June 23, 1945
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mmvroxy.
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HTTOENEY‘
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Patented July 16, 1946
. 2,404,236
UNITED/‘STATES “ PATENT OFFICE
Harold W. Kost, Birmingham, Mich" assignor to
Detroit Harvester Company,
Detroit, lllich., a
corporation of Michigan
Original application Se
ptember 1', 1944, Serial
N0. 552,25 . Divided and
23, 1945, Serial No. 601,254this application June
3 Claims.
(Cl. 85—36)
I
2
'
,
inclines upwardly and outwardly from the bot
tom wall l2’ so that when the fastener is mount
threaded engaging devices to cooperate with
each other securely to retain the screw in place
Another obJect is to produce a new and 1m
other in accordance with the
threads.
As shown, each end portion I8 is
10 formed with a curvilinear notch l9 in order ef
fectively to contact the root diameter of the
screw.
-
When a screw S’
15
fastener, it ?rst engages the, end portions l8
tightly the root diameter of
20
end portions I 8 also tighten
upon the screw,eifecting a toggle-like action forc
ing the tongues l1’ into intimate binding con
tact with the wall of the panel aperture. Thus
the screw S’ is engaged at two regions and a lock
a supporting
panel and is provided with screw-thread engag
ing means and also lock nut means;
nut e?’ect secured, thereby militating against the
screw or fastener S’ coming‘loose.
Figure 2 is a top plan View of the fastener
25
shown on Figure 1;
This application constitutes a division of my
Figure 3 is
co-pending application Serial No. 552,257, ?led
September 1, 1944, entitled “Sheet metal fas
tener.”
30
applied thereto.
The illustrated embodiment of the invention
in the appended claims. '
comprises a sheet metal fastener provided with
What I claim is:
'
g
a cup-shaped body B’ provided with a vbottom 35
wall l2’. Integrally formed in the bottom wall
l. A fastener comprising a cup-shaped body of
I2’ is a nut-like screw thread engaging part l3’.
spring metal adapted to be inserted into an aper
Tongues l4’ extend upwardly from the bottom
wall l2’ and terminate in outwardly bent ?anges
l5’. Struck from the side Wallsof the tongues 40
45
against the under side of the panel and cooperate
with the ?ange IS’ in holding the fastener in po
sition. Manifestly this provides for snap fas '50
tening engagement with the panel aperture.
As shown particularly on Figure 4, a pair of
spaced tongues or arms H’ are integral with the
base or bottom wall I!’ and are interposed be
ascrew.
2. A fastener comprising a cup-shaped body of
spring metal adapted to be inserted into an aper
ture in a supporting panel, an integral screw
thread engaging portion deformed from the bot
tween the tongues l4’. Each of the tongues I1’ 55 tom wall of the body and spaced inwardly from
the inner side of the supporting panel, said body
2,404,236
the inner side of the
extending in the same general direction from
the bottom wall, outwardly bent ?anges on one
—
bottom wall, outwardly’ bent ?anges on one pair
of tongues to engage the outer side of the sup
pair of tongues to engage the outer side of the
porting panel,’ spring ?ngers integral with said
supporting panel, the other pair of tongues being
inwardly bent end portions on said latter
'
including two pairs of opposed integral tongues
extending in the same general direction from the
including two pairs of opposed integral tongues
engageable W'th the walls of the panel aperture,
pair
4 '
upporting panel, said body '
i
last tongues for snap
engagement with the un- ~
der side of the supporting panel, the other pair
of tongues, and notched ends on said latter ' of tongues being engageable with the walls of the
thread of a screw and ’ panel aperture, end portions of said last tongues
10
tongues for engaging the
being bent toward each other, and screw thread
to cooperate with said thread engaging portion
for securely retaining the screw.
‘
a cup-shaped ‘body '
‘engaging surfaces on said bent endportions for
cooperating with said thread engaging portion
3. A fastener comprising
inserted‘into an
7 for retaining the screw.
7
of spring metal adapted to be an
'
.
HAROLD W. KOST.
integral screw
aperture in a supporting panel,
the bot 15
thread engaging portion deformed from
tom wall of the body and spaced inwardly from
r
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