close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2405288

код для вставки
H. G'. BUTT
PIPE VISE
Filed Jan. 25, 1944 '
¿a
MÍ
s _
Patented Aug. 6, 1946
v
2,405,288
LQUNITED STATES PATENT GFFICE
’ 2,405,288
PIPE VISE
,
Herbert G.AButt, Winthrop, Mass.
vApplication January 25, 1944', Serial No. 519,603
l
4 Claims. (01.81-21)
This invention relates to vises adapted to grip
pipes,- rods, bars, etc., having a movable jaw
which is forced toward a fixed jaw by mechanism
mounted on a ñxed standard, and with which is
combined a brace or tie member for connecting
the ñxed jaw and standard so that the stresses
appliedv in closing the movable jaw will be pre
2
to the arm I9 by the knuckle pivot I8. The link
2| is of turnbuckle construction having a nut of
which the bore is oppositely threaded at opposite
ends and into which project oppositely threaded
Shanks 23 and 24 from lugs which are engaged
with the pivots 22 and I8, respectively. By rotat
ing the nut, the link may be selectively lengthened
and shortened. Link Il is coupled with the hand
vented from bending or warping the base or
foundation on which the ñxed jaw and standard
lever arm I 5a by a pivot 25, and is curved or re
are mounted. By way of illustration, I have here 10 cessed at 26 in the region which lies next to the
shown my present invention as applied to a pipe
pivot I6 when the lever I5 is depressed in closing
vise of the character of that shown in my prior
the jaws. The recess 2E is deep enough to enable
Patent No. 1,623,045, granted April 5, 1927.
vThe object of the invention is to provide auto
matic means for coupling and uncoupling the con
necting member in association with- the opening
and closing'action of the jaws so as to ensure the
presence of the coupler in its operative location
the pivots 25, I 5 and I8 to be brought into the
same plane and the pivot 25 to be carried some
15 what beyond the common plane of pivots I6 and
I8, into self-locking position, when the toggle
linkage Iii-2l is straightened. The arm I5a and
link I‘I thus constitute a second toggle which is
whenever closing stress is applied to the jaws, and
straightened at the same time that the toggle
to insure remova1 of the coupling member, when 20 I 9-2I is straightened.
the jaws are opened, to a position which leaves
A ñxed stop 2l on the standard I2 and an ad
an unobstructed passageway into the space be~
justable screw stop 28 on the handle I 5 cooperate
tween the open jaws.
.
to limit the downward or jaw-closing movement
In explaining the invention, I have shown it
of the handle when the toggle I5a~I`I is in the
applied to a pipe vise essentially like that of my 25 self-locking position. A coupler or tie member 29
prior patent before mentioned, but Without in
is connected by the pivot 30 with the standard
tending thereby to limit the invention.
I2, such pivot being held by arms 3| on the stand
In the drawing,
ard I2 projecting toward the fixed jaw standard
Figure l is a side elevation of a vise embodying
I I. It may be noted in passing that the standard
this invention, showing the jaws in near approach 30 l2 is constructed with two parallel uprights spaced
to their fully closed position, and the brace or
apart from one another, that the pivots I6, 20 and
coupler in its operative position.
30 are held in these uprights and cross the space
Figure 2 is a partial section and partial eleva
between them, and the link I1 and toggle arm I9
tion of the same vise showing the jaws open and
are located in the interspace. The fixed jaw
the brace or coupler displaced to one side of the
standard II carries an abutment 31, here shown
passageway leading to the opening between the
as a pin mounted in, and extending across the
Jaws.
space between, spaced apart lugs 32 which rise
Like reference characters represent the same
from the top of standard II. The coupler or tie
parts in both of the ñgures.
member 29 has a complemental abutment in the
The structure of the vise comprises a base Ill, 40 `form of a lug or hook 33 on its free end so disposed
a standard II constituting a fixed jaw, and a
as to embrace the abutment pin 3l when the cou
standard I2 which supports means for operating
pler is placed in the position shown in Figure 1.
a movable jaw I3 in cooperation with the fixed
The face 3d of `the hook 33 is at approximately
jaw. The movable jaw is connected to the base by
the same distance from the axis of pivot 30 as the
a pivot I4, although it may be otherwise mounted
far side of the abutment pin 3l, and is coaxial
so as to be capable of approaching and withdraw
with the pivot. Thus it can slide past the abut
ing from the fixed jaw in gripping and releasing
ment without binding and, when in locking posi
pipes and other bodies.
»
tion, lies close enough to the abutment to prevent
For operating the movable jaw, a hand lever'I 5
any appreciable distortion of the base under the
is mounted on the standard I2 by means of a pivot ‘
pressure due to the toggle linkage.
I6 and has a short arm 15a connected by a link
The tie member or coupler is automatically ac
I‘I with the knuckle pivot I8 of a toggle linkage.
tuated to swing aside from the space above the
Said toggle linkage is composed of an arm I9
jaws when the latter are opened and to come into
coupled with the standard I2 by a pivot 20, and a
coupled connection with the abutment 3l when
link 2I connected to the jaw I3 by a pivot 22 and
the jaws are closed. For so actuating it, I have
2,405,288
4
3
provided a series of gear teeth 35 on the pivoted
end of the coupler arranged on a pitch line co
axial with the pivot 30, and a series of teeth 36
conjugate thereto on the side of the link l1 next
to the coupler. The link is constructed with an
said coupler having a hook portion arranged to
outwardly projecting portion at the side thereof
standard and jaw, a link connected with said-
toward the jaws, on which the teeth 36 are
operating lever and the knuckle of said toggle
linkage for straightening and breaking the toggle
formed, this portion being suitably designed with
embrace a lug on the jaw standard when the cou
pler is in the ñrst named of said positions, an
operating` lever pivoted to the supporting stand
ard, a toggle linkage between said supporting
with movements of the hand lever in opposite di
reference to the path of movement of the link to
make the pitch line of the teeth 36 conjugate to 10 rections, and intermeshing gear segments asso
ciated with the coupler and last named link dis
the pitch line of teeth 35. Since the opposite
ends of the link swing about different pivots and ,l posed to shift the coupler from one of its posi
~ tions to the other in consequence of the said move
are carried by arms which are not parallel to each
ments of the hand lever.
other in any position, the inclination of the link
2. A vise comprising a base, separated iixed
as a whole changes continually throughout its 15
standards rising from said base, one of which con
range of movement; and the teeth 36 are suit
stitutes a jaw abutment and the other of which
ably disposed to compensate for that peculiar
is a supporting standard, a jaw supported on the
motion.` The teeth 35 may be considered as con
base between said standards movable toward and
stituting a gear segment coaxial with the pivot
of the coupler and the teeth 36 as constituting 20 away from the jaw abutment for cooperation
therewith in >gripping articles, a coupler on the
a second gear segment which is conjugate to the
supporting standard arranged to extend across
first segment. The endmost tooth 36a of the
the intervening space into coupled connection
segment carried by the link is so disposed as to
with the jaw abutment standard and being mov
interlock with the endmost tooth 35a of the cou
' pler-carried segment when the linkage is in the 25 able away from such space, an operating lever
mounted on the supporting standard, and mech
position for opening the jaws most widely, as
shown in Figure 2, whereby to lock the coupler in
its turned back position and prevent it from
anism intermediate said lever and jaw for moving
the latter toward and away from the jaw abut- '
ment, said mechanism including interconnected
swinging forward so as to cause the teeth of the
two segments to jam or to come into incorrect 30 parts, one of which parts is coupled with the lever
and is engaged with the coupler s0 that the cou
mesh.
“
`
`
v
It will be apparent from a comparison of Fig
ures 1 and 2 that the gearing thus described auto
matically raises and swings back the coupler 29
when the jaws are opened, and swings the coupler
into the locking position when the jaws are closed.
The disposition of the teeth and the length of
the hook endV or lug 33 of the coupler are suit
ably designed to cause interlocking of the coupler
with the abutment 3| before the toggles have been
fully straightened.` This insures that the stand
ards will be tied together before a suiîiciently
severe stress is applied to the toggle mechanism
to cause bending of the base.
In consequence of the driving gear teeth 3B `
being formed on the link I1, they are actuated by
the handle I5 in its movement to shift the cou
pler from one position to the other. Although
the disposition of the teeth as shown is useful and
important, it is not a limiting factor of the inven- "
tion, and other arrangements of teeth, and other
means than gear segments may be provided with
in the scope and purview of the invention for
causing operation of a coupling means in time
pler is actuated to engage the jaw abutment when
the lever is shifted to bring the movable jaw into
gripping position, and is moved away from the in
tervening space when the lever is shifted to re
tract the jaw.
`
3. A vise comprising a base, a jaw standard
rising from said base, a jaw supported on the base
with provision for movement toward and away
from the jaw standard, a supporting standard on
the base at a distance therefrom, a toggle arm, an
operating lever and a coupler, all pivoted to said
supporting standard, the couple1` being engage
able with and disengageable from the jaw stand
ard, a toggle link connecting said toggle lever
with the jaw for actuating the latter. when the
operating lever is moved, and an operating link
connected at one end with said operating lever
and at the other end with saidtoggle arm, the
coupler having gear teeth in arcuate arrangement
around its pivot and the operating link having
gear teeth in an arrangement conjugate to the
ñrst named gear teeth to mesh therewith and
cause movement of the coupler as the link is
moved by the operating arm.
4. A vise comprising a base, separated stand
ping jaws. The invention is not limited to com
ards rising from said base, a movable jaw coop
bination with pivoted jaws, but may be used with
erative with one standard to grasp articles, an
mechanisms containing sliding or otherwise mov
operating lever mounted on the other standard,
able jaws, such, for instance, as that shown in
the C'allan Patent No. 1,112,192, dated September 60 mechanism including a link operable by said lever
for moving said jaw toward and away from the
29, 1914.
standard with which it cooperates, and a coupling
What I claim and desire to secure by Letters
with opening and closing movements of the grip
Patent is:
«
member mounted on the same standard on which
the operating lever is mounted and being movable
1. A vise comprising a base, a jaw standard
rising from the base, a supporting standard ris 65 into and out of coupled connection with the jaw
ing from the base and separated from the jaw
standard, a cooperating jaw mounted on the base
between the standards movable toward and away
from the jaw standard to coact therewith in grip
cooperative standard, said- link and coupling
member having interengaging teeth arranged to
effect shifting of the coupling member away from
its coupled position when the jaw is moved away
ping and releasing workpieces, a coupler pivoted 70 from the cooperative standard and into its cou
pled position when the jaw is moved into grasping
to the supporting standard at a distance from the
relation with the cooperative standard.
base and movable between a position extending
HERBERT G. BUTIL
across the space between the standards and an
other position in which it is clear of such space,
Документ
Категория
Без категории
Просмотров
0
Размер файла
394 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа