US2620695A - Vise having displaceable screw segment for quick adjustment - Google Patents

Description

Dec. 9, 1952 J, F, ElERMAN 2,620,695

VISE HAVING DISPLACEABLE SCREWv SEGMENT FOR QUICK ADJUSTMENT Filed March 14, 1951 1g-Z l ll-ll... 4 INVENTOR.

JACK F. EIERMAN A T TOR/Vfy.

Patented Dee. 9, 19,52

VISE HAVING DISPLACEABLE SCREW SEG- MENT FOR QUICK ADJUSTMENT Jack F. Eierman, Milwaukee, Wis., assignor to Mechem Engineering, Inc., Milwaukee, Wis.

Application March 14, 1951, Serial No. 215,568

3 Claims.

My invention relates to Vises, and more particularly to quick-opening vises.Y

The object of my invention is to provide a vise in which the movable jaw may be easily engaged and' disengaged in its relation to the clamping screw, at any predetermined point along the length of the screw.

Another object of my invention is to provide a quick-opening vise which may be manipulated and adjusted in the conventional manner.

Still another object of my invention is to provide a device of the character described that may be constructed to accommodate material of varied dimensions being worked on.

A further object of my invention is to provide a vise that will position its working and moving parts in a manner to place them ready for use without reversing the movement of the screw.

A still further object of my invention is to provide a quick-opening vise that is simple in construction, has but few moving parts, and is easy to manipulate by the operator without mechanical skill.

' It is manifest to anyone familiar with wood working or the like, that the work piece, to be retained in position in the vise While the various operations are performed thereon, may be of varied widths and dimensions. It is imperative that a vise for clamping the work piece should be quickly adjusted. This is also true when production demands quick placing and removing of the work piece in the vise.

In the device claimed, specified and illustrated, the clamping jaw is quickly released, and the sleeve is brought to its original position by a revolving adjustment of the screw with less than a complete revolution thereof.

Other` and further objects of my invention will become more apparent as the description proceeds when taken in conjunction with the drawing in which:

Figure 1 is a side View of the assembled dev1ce.

Figure 2 is a longitudinal cross-section of the device as shown in Figure 1.

Figure 3 is a lateral cross-sectional view of the screw, sleeve and' housing, taken at the line 3-3 in'Figure 2, showing the insert member in engagement with the threaded housing, and

Figure 4 is a similar view as shown in Figure 3 with the insert member disengaged on the threaded housing.

y SimilarY characters of reference indicate corresponding parts throughout the several views, the character I designating a vise body, which may be attached to a work bench or the like (not shown), by means of screws or bolts disposed through apertures II on outwardly projecting members I2, on both sides thereof.

" The body I0 has a pair of longitudinally extending tubular guides I3 extending therethrough, which act as slidable supports for a pairl of longitudinal rods I4 attached at I5 to a movable jaw, member I6, which jaw, obviously, is of a size and contour to correspond with a stationary jaw I'I forming an integral part of the body I0. The jaws I6 and I1 may be of any shape or contour, and act as supporting means for clamping a work piece (not shown) while work is being performed thereon.

There is a threaded housing I8 inserted longitudinally into the body I0. This housing I8 is threaded at I9 on its inner face. This type of construction, of course, may be varied. The body itself may be threaded, instead of having an insert with a thread on its inner bore. tudinally threaded screw 20 is rotatably suspended centrally within the inner threaded opening of the housing I8 by means of an aperture 2l in the jaw I6 at its forward end, and an aperture in a flange shown as 22 attached to the body I0 by means of screws 23 at the rearward end thereof. Disposed between the flange 22 and a rear face 24 of the body I0 is shown a washer 25, which has an aperture therethrough of a greater diameter than the screw 20. This Washer is also supported by the screws 23 which attach the flange 22 to the body I0 of the device.

A cylindrical sleeve member 26 slidably engages the threaded screw 20 within the threaded housing. 'Ihe longitudinal screw 20 is provided with a flat surface 21 along its entire length, while a pin shown as 28 extends through the wall of the sleeve 26 in alignment with the flat surface 21 to limit the radial movement of the screw 20 within the sleeve 26.

The sleeve member 26 is also provided with an elongated slot shown as 29 through its side wall. This slot is of a size and dimension to receive a segmental insert 30 threaded at its outer face 3l, to fit the threads I9 on the housing I8, and

on its inner face 32 having threads to fit the' threads on the outer face of the longitudinal screw 2|).`

The forward end of the screw 20 is provided with a head member 33, having an aperture extending laterally therethrough to slidably support a lever 34, which extends therethrough and which is equipped with the conventional limit stop knobs shown at 35 on each of its ends, so that the lever 34 may be moved slidably to either one side or the other, to provide the necessary leverage when manipulating the screw, thereby actuating the movable jaw I6.

60, one end, and the face 31 of the sleeve 26 on the,

other end.

A longi- In operation, the device functions as follows: 'I'he screw 2li is revolved by means of the lever 34 into position shown in Figure 4 which permits the operator to move the jaw I6 outward so that the Work piece may be inserted between the jaws I6 and I1, at which time the operator moves the jaw 24 inward and revolves-the screw 20 into the position as shown in Figure-3 which brings the segmental insert 3 into threaded engagement with the thread on the screw 2i! and the inner thread I9 of the housing I8, and as the screw 20 is revolved, the movable jaw It is forced toward the stationary jaw I1 for securely clamping the work piece between the jaw I6 and I1. When the work piece is to be released, it

is; merely necessary for the-operator to revolvethe g screw 20 intheopposite direction, to the positionshown in Figure-4, at which time the segmental insert30 is broughty out of engagement` with -vthescrew 20 'in the inner thread I9 vof thev housing I8 thereby permitting therjaw IB to beypulled outward to release the worky piece.v

The atportion 21 on the screw 2i) is brought intaengagement at one point with the insert 30, as the pin 28 limits the movement of the screw :2li within the sleeve 26, and the sleeve 26 is urged forward toits .original positionby means ofthe resilient member 36.

In fthegchosen .embodiments of my invention,

thereare ymany features that identify theV in-..

stant. invention :fromv the prior art. Howeven I am fully cognizantV of the fact that inthe arrangement ofthe component parts constituting the device, many. changes may be made that will notaiecttheir emciency or operativeness, and without. departing.v from thespirit of my invention or-the. scope of the appendedclaims.

through, at threaded. screwn centrallyY disposed through,` the. boreinV said body, said screw ro-, tata-bly supportedJ at its, forwardV endby said movablejaw, andatitsrearward end bygsaid body, alongitudinal sleeve slidably .engagingxsaid screw, said, sleeve .having an .outerI diameter ,less than the threaded bore in said body,v said sleevev provided with an. elongated apelfullethrough its side. wall, said. threaded-screw having-,a ,naif/ surface alongits entire length, a stopY member disposedthrough the-side Wall. of said, sleeveadjacentw the .atsurface of saidi screw, ajndextending, inwardtherefrorn, Said stoomernbenemployed. to. limit,. the radial. movement, 0f. Said. threaded screw within said sleeve, and a segmenfA tal insert slidably ,disposed .within said elongated aperture insaidsleeve, said insert provided with an outer threaded surface for engaging the longir.

tudinal threaded. bore withinsaidbody, andan inner thread for engagementwiththe threadon saidV screw and slidably actuatedby the revolutionof said screw within said sleeve which vradial mQVement is governed by the stop member within said sleeve.y

2. A quick-opening vise comprising, aninternallyrthreaded body provided with a stationary jaw, amcvable jaw, means forV slidably guiding, saidV movable jaw within said body. portion, a. threaded screwmember longitudinally and centrallyVV disposed within` said body, said screw. .pro-r.. vided with a at surface extending longitudinally.,

4 along its entire length, means for rotatably mounting said screw onto said movable jaw on one end, and on said body'onv its -other end, a cylindrical sleeve slidably engaging said screw, said sleeve having a diameter less than the inner threaded portion of said body, said sleeve having a longitudinal aperture extending through its wall, a pin member extending through the wall of said sleeve for engagement with the flat portion of said screw to limit the radial movement of said screw within said sleeve, a segmental insert member slidably mounted within the elongated aperture in said sleeve member, said insert member having a threaded outer surface for engagement with the inner threaded surface of -saidbody anda threaded inner surface lfor engagement with the threaded screw member, means on one end of said screw member adjacent saidmovable jaw for rotating said `screwwithin said sleeve, thereby bringing saidinsert'member into engagement with the internal threadedsur- Vface of said body due to the engagementof:one

side of :saidflat surface Yof Vsaid screw withsaid pin, thereby causing said'sleeve to'revolve in threaded engagement with said body-for movingk said adjustable jaw toward `and away from said stationary vj aw.-

3. A quick-opening viseof the-character-described comprising, an internally threaded body.y

providedwith a stationary jaw, a rscrew member centrallyy disposed within theinternal threadgof.l said body, said screw. member being-of a siriadlerl diameter AthanY said-internal threadA in saidfbody. and having alongitudinalv fiatsurfacethereon, a movable jawgattachedto-one end-,of said screw,

member, said movablejawslidably suDpQrted-by, said body, said screw member supported at;` one. end by said movable jaw and on the other end,

by said body. member, a cy-lindricalfsleeve member slidably. engaging said screw member,v and having vastop member disposedthrough its walls for engagement with the hat-surfaceV ofl said screw, said sleeve being of-a Ydiameter smaller than the internal threaded surface y and havinga longitudinal slot through its side,

an insert slidably mountedv within said slot,- said` insert threaded at its inner and outer. face, means for Yrevolving said screw member thereby raising said insert out-of said sleevey intoen gagement with the inner thread of said body and the outer thread of said screw due to Vone-side` of said flat surface contacting said segment, and

a resilient means disposed betweenA the one support forsaid screw and the one end ofsaid sleeve` to return said sleeve rto its original po-s'ition'whensaid sleeve is released from said screw due tothe.-

fiat surface of saidscrew. member. disengaging from' said stop member when said screw is re.- volved in an opposite direction.l

JACK F. E IERMAN.

REFERENCES, CITEDv The following references are le of this patent:

ofsaid-bodyy of record in the..

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