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Патент USA US2406949

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Sept. 3, 1946;
L. C. _HUCK
RIVETING GUN
2,406,949 '
'
Filed July 31, 194/
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2 sheets-'sheet 1
Sept. 3, 1946.
2,406,949
L. c. HuczK` RIVETING GUN
Filed Ju1y_31,` 1944
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in contact with the surface of bore 32. At the
right end of the jaws, a jaw follower 40 is pro
vided and this is pressed against the ends of
the jaws by a coil spring 4| which encircles a
smaller end portion 42 of the member 34 and
urges the jaws towards the left end of the mem
ber 38 so as to contract them in a radial direc
tion. The jaws, jaw follower. and spring may
substantially correspond to similar parts such as
4
insure that the rollers will at all times be in a
position opposite the rack so as to take side loads
imparted against the rack.
,
For moving the rack portion 46 so as to pull
the rivet pin, a pinion 10 engages the rack teeth,
and this pinion is keyed to a shaft 'H which is
journaled in bearings 112 and 13 in opposite side
walls of the casing as seen in Fig. 2.
A large
shown in Huck Patent No. 2,053,717, and the in
gear 14 is also keyed to the shaft 1|, and this
gear meshes with a small pinion 15 which is
ner surfaces of the jaws may have circumfer
> keyed to a shaft 16 journaled in bearings 11 and
entially extending grooves for engaging a simi
larly grooved end on the rivet pin.
Generally, setting of the rivet would occur in
18 in the casing side walls as also shown by Fig, 2.
A second large gear 80, keyed to the shaft 16,
meshes with a pinion 8| which is secured to
substantially the same manner as set’forth in
a hand-wheel shaft 82 journaled in a tubular
the patent mentioned, and it seems only neces
projection^83 forming part of the casing.
sary to mention the procedure briefly here. The
For turning the shaft 82 a handwheel 84 is pro
rivet is inserted in the work to be riveted and
vided on its outer end outside the casing, and
the barrel of the mechanism is moved over the
while the handwheel is not keyed to the shaft,
rivet pin so that the pinextends through the 20 it is normally retained thereon against removal
anvil and between the jaws, As the pin enters
by a washer 85 and a screw or the like 86. A
the jaws, it may spread them slightl-yand at the
same time move them slightly rearwardly against
the action of the spring so that finally when the
pin is in position the springï moves the jaws into
gripping relation with the pin.- Instead of this
procedure, the rivet may first be applied to the
mechanism by moving the rivet `pin inwardly be
tween the jaws and then moving the mechanism
spring 81 inwardly of the washer 85 normally
urges the handwheel 84 inwardly, but it is ap
parent that the wheel may be manually pulled
outwardly against thevaction of the spring. Ay
bearing bushing 90 supports the handwheel on
the shaft, and this bushing has a flange 9| at
the inner side of the wheel which is secured to
the latter by rivets 92. This flange, as best seen
to place the rivet in the work. When the mem 30 by Fig. 3, has circumferentially spaced ratchet
ber 34 thereafter is pulled the jaws are ñrst
teeth 93, and these are engageable with similar
caused to forcefully grip the pin and then the
ratchet teeth 94 formed on a collar 95, best
pin is pulled or moved with the member. During
shown by Fig. 2, which is secured to the shaft
this action the reaction to the pull is applied
82 by a pin 96. It should now be evident that
through the anvil 21 to the head on the tubular 35 the ratchet teeth are urged into engaging rela
member. After the rivet is set, an increase in
tion by the spring 81, but that the Wheel may
tension on the pin breaks it andthe broken part
be reversely turned so that the teeth 93 ride idly
moves on rearwardly through the member 34.
over the teeth 94. Accordingly, the handwheel
At its right end the reciprocatory -member 34
may be turned continually in one direction, or
is connected to a tubular rod 45 which is threaded 40 it may be turned by back-and-forth movements
thereinto, and this rod, within the casing proper,
so as to drive the shaft by increments.
has a generally rectangular portion 46 provided
In order to prevent reverse movement of the
with rack teeth 41 on one side. At that side
rivet pin pulling means and hence reverse turn
of the portion 46 opposite the rack teeth 41, roller
ing of the pinions and gears by the spring 63,
bearings 48 are provided, and these are disposed 45 a releasable locking device is provided adjacent
in openings formed in a retaining plate 49. A
the handwheel 84, and this operates to hold the
bearing plate 50 supports the rollers at that side
shaft 82 against reverse movement. This lock
opposite> the rack portion 46, and this plate is
ing means comprises a plunger 91 slidable in a
secured by screws 5| and 52 to a thickened por
. tubular projection 99 adjacent the handwheel
tion A53 of the casing wall. As best shown by 50 84, and this plunger is normally urged inwardly
Fig. 3, the bearing retainer plate 49 has upwardly
towards the collar 95 by a spring 99. ' At its in
projecting guide flanges 56 and 51 straddling
ner end the plunger has a suitable tooth or dog
the rack portion v46 at its lower side, and the
portion |90 engageable with circumferentially
openings in the plate for the rollers 48 open only
spaced teeth IDI on the collar. The 'teeth are
to the left side. With the rollers located in the 55 of such character that reverse movement of the
openings vand the parts in place, removal of the
shaft 82 is prevented while permitting forward
rollers is prevented by a flange 58 on the bearing
movement of the shaft as required during set
plate 5U.
ting of the rivet, but at any time, however, the
Directing attention again to Fig. 1, the mem
plunger 91 may be pulled outwardly so as to free
ber 45 at the right end of the rack portion 416 60 the shaft 82 for reverse movement. .
is connected to a rod 69 which may be threaded
In operating the mechanism described, the nose
into the end of the rack portion as indicated
of the gun is pushed'over the projecting rivet
at 6|. This rod has a collar 62 abutting the end
pin until the latter is disposed between the jaws,
of the rack portion and which also serves as an . and the anvil engages the head on the tubular
abutment for one end of a coil spring 63 dis
rivet member. Then the handwheel 84 is turned,
posed on the rod. The rod includes a smaller
and usually it will be found easier to turn the.
portion 64 projecting through the opening |2 in
wheel back and forth so as to turn the shaft
the casing wall, and the spring 63 encircles this
82 by increments. Turning of the shaft 82 causes
smaller portion _and abuts a spring seat 65 located
the gears and pinions to turn and the rack tof.
against the wall of the casing.
70 move so that the rivet pin is pulled.. After the
Movement of the roller retaining plate 49 is
pin is pulled suiìîciently to set the rivet, con-I
limited at one end by a rivet pin 66 projecting
tinued turning will break the pin and the broken
upwardly from the bearing plate 59, and move
off part will move rearwardly through the mem-4
ment in the opposite direction is limited by the
_ber 54, rack portion 46, etc..- _Then Athe _opera
collar B2 on the rod'ßû. 'I‘hese two limiting means 75 tor, by pulling the plunger 91' outwardly; can
t annonça-4e
release fthe turnable parts for reverse ì‘movement,
“ingrfromï the casingmeans .on thei‘member tor Len
ïand'sthe compressed*Springïßß`
'gagirig the . one rivet part .sor as" to 'ipull ift,` ‘means
ßto their 4original positions.
¿l :Y
return thetparts '
_,
. "While only one ¿form of the invention fhas‘zbe'en
illustrated vand >desoribeclïin detail, it `will tbe :ap
on the casing for applying the reaction `force to
-the other rivet part,` means .including a turnable
shaft lfor moving the member, «a .manually turn
parent to -tl'iose skilled ‘in ‘the ‘art Ítlfiatï*various
:modifications may.` be `tmade fw'ithout :departing
able elementtpn ‘the shaft, `means .connecting ‘the
fromzthe scopeof the appended‘claims.
turned `in the-irrivet pulling .direction >by 'incre
‘
' `>
element to‘ the Ashaft vso that the latter' may be
ments tol_.setx».the rivet‘throug’nback and forth >
'1. A.mechanismv for=rela"tively moving a `tn
io »turn-ingA ¿ofi
element, lan-d «releas ableV means ien
.bul'ar- element land aïîpinwelement extending
thecasin'g forfpreven'ting reverse ‘turningfo‘f the
through `-it,î .l‘corn‘pris'ing a casing, an anvil on the
casing for applying reaction forces to the tubu
lar element, means engageable with the pin for
shaftduring setttingofthe rivet.
'
‘
i
'7. A riveting mechanism for setting a two-part
rivet wherein one part is pulled and the reaction
ito the pull is applied against the other part, com
prising a casing, a reciprocatory member project
ing from the casing, means on the member for
engaging the one rivet part so as to pull it, means
on the casing for applying the reaction force to
turning of the pinion.
'
20 the other rivet part, means for moving the re
ciprocatory member including rack teeth on a
2. A mechanism for relatively moving a tubu
portion thereof in the casing, a reduction gear
lar element and a pin element extending through
train in the casing and including a pinion mesh
it, comprising a casing, an anvil on the casing
ing with the rack teeth, means for driving the
for applying reaction forces to the tubular ele
reduction gear train including a yshaft projecting
ment, means engageable with the pin for pull
to the exterior of .the casing, a manually turnable
ing it, a rack connected to said means, a pinion
element on the shaft, means connecting the ele
engaging the rack, resilient means opposing rivet
ment to the shaft so that the latter may be turned
pulling movement of the rack, means for turning
in the rivet pulling direction iby increments so as
the pinion including a handwheel externally of
to enable driving the reduction gear train and set
the casing, and releasable means for normally
ting the rivet through back and forth turning of
preventing reverse turning of the pinion.
the element, and releasable means on the casing
3. A mechanism for relatively moving a tubu
for preventing reverse turning of the shaft during
lar element and a pin element extending through
setting of the rivet.
it, comprising a casing, an anvil on the casing
8. A riveting mechanism for setting a two-part
for applying reaction forces to the tubular ele
rivet wherein one part is pulled and the reaction
ment, means engageable with the pin for pull
to the pull is applied against the other part, com
ing it, a rack connected to said means, a pinion
prising a casing, a reciprocatory member project
engaging the rack, resilient means opposing rivet
ing from the casing, means on the member for
pulling movement of the rack, means for turn-`
ing the pinion including a shaft and a handwheel 40 engaging the one rivet part so as to pull it, means
on the> casing for applying the reaction force to
externally of the casing, and means connectingV
the other rivet part, means for moving the recip
the wheel to the shaft so that the wheel can be
rocatory member including rack teeth on a por
reversely turned independently of the shaft.
tion thereof in the casing, a reduction gear train
Ll.Í A mechanism for relatively moving a tubu
lar element and a pin element extending through 45 in the casing and including a pinion meshing with
the rack teeth, means for driving the reduction
it, comprising a casing, an anvil on the casing
gear train including a shaft projecting to the ex
for applying reaction forces to the tubular ele
terior of the casing, a manually turnable element
ment, means engageable with the pin for pull
on the shaft, means connecting the element to
ing it, a rack connected to said means, a pinion
engaging the rack, resilient means opposing rivet 50 the «shaft so that the latter may be turned in the
rivet pulling direction by increments so as to en
pulling movement of the rack, means for turning
able driving the reduction gear train and setting
the pinion including a shaft and a handwheel ex
the rivet through back and forth turning of the
ternally of the casing, means connecting the
element, releasable Vmeans on the casing for
wheel to the shaft so that the wheel can be
turned in one direction to drive the shaft and 55 preventing reverse turning of the shaft during
setting of the rivet, and Ispring means opposing
reversely turned independently of the shaft, and
movement of the reciprocatory member in its rivet
releasable means for preventing reverse move
setting direction, whereby when the rivet has been
ment of the shaft except upon release thereof.
set, the releasable means may be released so as
5. A riveting mechanism for setting a two-part
rivet where one part is pulled and the reaction to 60 to allow the spring to effect reverse rotation of
the reduction gear train and return all the parts
the pull is applied against the other part, com
to their initial positions.
prising a casing, a reciprocatory member project
9. A riveting mechanism for setting a two-part
ing from the casing, means on the member for
rivet where one part is pulled and the reaction to
engaging the one rivet part so as to pull it, means
the pull is applied against the other part, com
on the casing for applying the reaction force to
prising a casing, a reciprocatory member slidable
the other rivet part, means including a turnable
in the casing, means on the member for engaging
shaft for moving the member, a manually turn
the one rivet part so as to pull it, means on the
able element on the shaft, and means connecting
casing for applying the reaction force to the other
the element to the »shaft so that the latter may be
turned in the rivet pulling direction by increments 70 rivet part, means including a turnable shaft for
moving the member, a manually turnable element
through back and forth turning of the element.
on the shaft, means connecting the element to
6. A riveting mechanism for setting a two-part
the shaft so that the latter may be turned by said
rivet where one part is pulled and the reaction to
manually turnable element so as to pull said one
the pull is applied against the other part, com
pulling it, a rack connected to said means, a
pinion engaging the rack, resilient means oppos
ing rivet pulling movement of the rack, hand
operated means for turning the pinion and re
leasable means for normally preventing reverse
prising a casing, a reciprocatory member project
75 rivet part, and releasable means on the casing for
2,406,949
7
v8
preventing reverse turning of the shaft during
the pulling of said one rivet part and setting of
ment on the shaft located externally of the cas
the rivet.
10. A mechanism for moving a tubular element
and a pin element extending through it, compris
ing, means connecting the manually engageable
element to the shaft so that upon‘ turning itin
one direction it drives the shaft to cause the pin
element to be pulled and the reaction force to
be applied against the tubular element, and re
leasable means for preventing reverse movement
of the shaft except upon release thereof so that
during setting of the rivet the shaft will not turn
ing a casing, an anvil on the casing for applying
the reaction force to the tubular element, means
engageable with the pin for pulling it, a rack con
nected to said means, a pinion engaging the rack,
resilient means opposing the rivet pulling move 10 reversely even though the manually turnable ele
ment of the rack, means for turning the pinion
including a shaft and a manuallyiengageable ele
ment is not manually held against reverse turning.
LOUIS C. HUCK.
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