US2188976A

US2188976A - Saw trimmer vise

Info

Publication number: US2188976A
Application number: US195809A
Authority: US
Inventors: Hertler William
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-03-14
Filing date: 1938-03-14
Publication date: 1940-02-06
Anticipated expiration: 1957-02-06

Description

Feb. 6, 1940, w, HERTLER v 2,188,976

SAW TR IMMER VI SE Filed March 14, 1958 FT "Q--"-"""'-\ ll lll il INVENTOR. M m BY m4. A,

ATTORNEY.

by a lever 3il-having a handle 3|, levers 26 and 30 beingconnected by a link 32. ;Lever 30 is pivotally mounted at 33 on a block 34 which is securely attached to the clamping bar 6 to be movable therewith, and block 34 is movable rela-.

tive to block 23 within the limits, of the abutments constituted by one side of block 23 and an abutting plate 35 attached to the slide bar 6 by. a

screw 36.; A rod 3'! is secured to block 23 by screw 38' and extends through a perforation or opening in the abutting plate 35. Coil spring 39 is disposed around the rod 3'! with one end of the v spring abutting the plate 35 and the other end abuting an adjustable screw sleeve 43 which interacts with a threaded portion of the rod 31. A stop pin 4! is provided on the block- 34 for lever 30; a

The operation of the abovedescribedmecha nism is briefly as follows: The trimmer vise is fastened as shown in Fig. l with the screw El and: pin H'a in'serted. in thetable to securely fasten the baset thereto which, when fastened, brings. the clamping slide 6 in register with the edge of the abutment 3. With the handle'3l in theirai sedposition, as shown in Fig. 1,1the eccentric'. 25 is.in a'position where the gib block 24 is out of contact with the guide rod 14. In'this position, block 23 is free to slide on the guide id,

whichtpermitsquick adjustment of the clamping bar 6;: to any position necessary to engage the pie'ceA' by simply drawing the bar 6, which is accomplished by pulling handle 3|, in the direction of the piece 4, to-bring the clamping bar 6 either: adjacentc-tolor :in contact with the piece 4 The latter will be clamped'by the'actionof dew shown inFig. 3.. By thismovement of handle 3 i the clamping bar emoves forward in the direction ofthe piece 4; and. by the leverage of lever 33 throughthe link 32 against lever 23; the latter- Will bedepressed, causing the eccentric '25 to rotate, resulting in the gib block 24 pressing against thecguide-bar I4 andlocking bar 23: in position: Downward movementofthe handle 3*! compresses sp'ring- 39, as shown in Fig. 3, and by raisinghandle 3i upward the locking. mechanism will-be released by a-spring action.

When: the clamping face 5--of the bar 6- is brought toabutting engagement-with the piece to be clamped, the clampingaction, by'depressing handle 3t, first .,locksthe block 23 to the guide rod. I4 and by further depressinghandle 3 l, the entire guide bar l4-is moved-rearward against the-tension of the coil spring IT so that the piece 4'-'-is= held against the abutment 3 by the back pressure of thecoil spring ll. When handle '3! is raised the power'of the compressed spring I? also acts tosnap the handle 3| to the uppermostposition and retract the clamping'bar 6 to release the piece4i The eccentric, however, remains locked-sothat the clamping bar 6'will always return to=the position-to which it'was originally adjusted for the" particular size pieces to be acted upon, 'andif it isdesired to change the position of the clamping slide bar 6 by movingthe block 23 on the guide bar l4, it is necessary to raise the handle-3| until lever 30 abuts the pin 4| which movement releases the eccentric and consequently the clamping block23, which is then Q 7 freeto slide on the bar l4. s

By means of thehereinbefore describd'mchanism, adjustment of theclamping bar to differ-J ent size pieces can be made by manipulation of the same handle or lever that is employed ior; a clamping the piece, whereby the size-is quickly l adjustable to thedifierent size pieces'to be sawed or trimmed. Also the eccentric locking mechanism, and the spring biasing of the guide rod providea reliable and positive'locking'means for the pieces. The device is of compact and durable I -construction and as will be appreciated fromthe nature of the construction of the" operating f p mechanism, there is very little strain on the working, parts, so -that they will last indefinitely. As the eccentric shaft has a precision fit with the j movable gib-block, it is not subject to excessive Wear, and the gib block being coextensive with the block 23 has a side-contacting surface for clampingly engaging the guide rod l4 so that'it l likewise'is not subjected to any Wear and willnot mar the guide rod M, which would hamperthe free sliding of the mechanism. 7 v v Although one embodiment of the invention been herein illustratedand described, it'pw'ill be evident to-those skilled in the'art thatmodifications may be made inthedetails of construction without departing from the prin'cipleshereinl set forth. w a i I claim:

'1. A visecomprising a base, a'stationary abutment' in spaced relation to said base, a clamping bar slidabiy mounted on. said base in alignment i tending said bar and for locking it comprising a guide rod onsaid'base, a clamping block slidably mountedon saidrod', a gib infsaid'block adapted with said stationary abutment, means for exto engage the rod, an eccentric for actuating said gib to engageand' disengage the guide rod; a lever for actuating saideccentric, a lever carried by the clampingbarior actuating said first named lever, said levers-being connected by a link, spring means biasing said clamping bar against the clamping block, and spring/means biasing the guide rod against the-base whereby,

upon downward movement of the clamping bar lever,,the piece to be acted upon is yielding-1y engaged between thevclamping bar and thejstationary abutment. j

2. A vise comprising a stationary base, I a

clamping bar movably mounted thereon, a guide rod mounted for limited'axial'movement 'in' said base, a spring biasing said guidev rod, a clamping block mounted onsaid guide rod, a gib block in said clamping block, an eccentric for actuating the gib blockzto engage and disengage the guide rod, 'a lever for actuating the eccentric, and a lever mounted on said clamping bar and connected to said; first named lever, and spring meansbias'in'g said ,1 lever to ,the'upper position,

said lever beingoperative to release the gib block when it is desired to slide the clamping bloclivon the guide rod to extend. the clamping bar and being operative to, move the clamping bar in clamping engagement with'the piece to be acted upon without affectingthe gib block actuating lever.