US2776684A - Cam actuated quick acting bench vise - Google Patents

Description

Jan. 8, 1957 w. J. HAYNES CAM ACTUATED quzcx ACTING BENCH VISE 2 Sheets-Sheet 1 Filed May 11, 1955 INVENTOR, lfl/lla/w @1165.

Way/gym Jan. 8, 1957 w. HAYNES 2,776,684

CAM ACTUATED QUICK ACTING BENCH VISE Filed May 11, 1953 2 Sheets-Sheet 2 I INVENTOR, lax/fie J/V a/mn MJM Avior/7 United States Patent CAM ACTUATED QUICK ACTING BENCH VISE William J. Haynes, Bonner Springs, Kans., assignor to Leavenworth Steel, Inc., Kansas City, Kans., a corporation of Kansas Application May 11, 1953, Serial No. 354,238

3 Claims. (Cl. 144-307) This invention relates to new and useful improvements in bench vises, and has particular reference to a bench vise wherein the width of a board or other object being clamped is easily and quickly accommodated by means of an adjustably wedge block.

Another object of the present invention is the provision of a bench vise having an operating lever adapted to cooperate with wedges formed on a clamping plate to bind work in said vise.

Other objects are case and economy of manufacture, efiiciency and speed of operation, and adaptability for use in clamping work within a large range of widths.

With these objects in view, as well as other objects which will appear in the course of the specification, reference will be had to the drawing, wherein:

Fig. l is a plan view of a bench vise embodying the present invention, in position on a bench.

Fig. 2 is an elevational view of the bench vise shown in Fig. 1.

Fig. 3 is a vertical sectional view taken on line III-III of Fig. 2.

Fig. 4 is a perspective view of the disassembled wedge and vise bed plate anchored to a bench.

Fig. 5 is a perspective view of the clamp plate.

Fig. 6 is a perspective view of the operating lever.

Throughout the several views of the drawing like reference numerals refer to similar parts, and the numeral 10 designates a bench having a suitable top member 12 on which is securely fixed the metal vise bed plate 14 by means of screws 16, the forward edge portion of said bed plate being bent downwardly to form an apron 18 secured to the edge of bench member 12 by means of screws 20. This apron 18 is perforated centrally by a square hole 22 to receive the squared shoulder 24 of wagon bolt 26. The lower corner portions of apron 18 are ofiset to form ledges 28, and said apron is offset outwardly intermediate said ledges at 30 to form a pivotal hearing or fulcrum for the lower edge portion of the planar clamping plate 32, which rests on ledges 28. The outer edges of plate 32 are reinforced by outwardly formed ribs 34 pressed into the plate. A hole 36 is formed through plate 32 adjacent its central portion to receive bolt 26 loosely therethrough. Operating lever 38 is perforated at 40 for positioning on bolt 26, with thumb nut 42 screwed thereon to rest against lever 38. It will be noted that the handle portion 44 of lever 38 is offset outwardly to clear the bench parts 10, also the planar portion 46 of lever 38 is adapted to cooperate with raised, inclined arcuate wedges 58 and 60 of plate 32 to force said plate inwardly against the work W p0- sitioned against the wedge 48.

Referring to Figs, 1, 3 and 4, it will be noted that rear flange 50 of the bed plate is inclined forwardly from the vertical to present an undercut to receive the inclined edge wall 52 of wedge 48 to insure that the bottom 54 of said wedge will hug the face of the bed plate at all times. The front wall 56 of said wedge is ver- 2,776,684 Patented Jan. 8, 1957 tical and disposed at a right angle to bed plate 14, and parallel to apron 18. The inclined wedges 58 and 60 are pressed into the face of clamping plate 32 adjacent hole 36 in diametrically opposed relation so that as operating lever 38 is rotated anti-clockwise it will ride on wedges 58 and 60 to force said clamping plate against the work W to clamp it in the vise. The operator, by adjusting thumb nut 42 can easily regulate the clamping position of lever 38 to a convenient angle. It will be noted that the work as shown in Fig. 3 extends forwardly of apron 18 so that the clamping plate 32 will be substantially parallel with said apron when in the clamping position as shown.

When it is desired to use the vise the work may be positioned against plate 32, then wedge 48 is moved to a snug position against the work. Now nut 42 may be adjusted to properly adjust the operating lever relative to wedges 58 and 60. As the lever is rotated anti-clockwise it will tighten plate 32 against the work to secure the same tightly in the vise. The work is shown extending above the clamping means so that its extending edge may be planed or otherwise worked on without any interference from the vise parts.

While I have shown and described a specific embodiment of my invention, it is apparent that many minor modifications of structure and operation could be made without departing from the spirit of the invention as defined by the scope of the appended claims.

What I claim as new and desire to secure by Letters Patent is:

1. A bench vise comprising a bed plate adapted to be rigidly secured to the top of a bench and having an apron depending at the front of said bench and an upturned flange at the rearward edge thereof, a clamping plate mounted on said apron for movement relative thereto, a wedge block mounted on said bed plate for adjustment whereby the forward face thereof is moved toward and from said clamping plate, and a cam operating means carried by said apron and operable to adjust said clamping plate relative to said apron, to move it against work mounted in said vise between said wedge and said clamping plate, whereby said work is securely held.

2. A bench vise comprising a formed bed plate adapted to be rigidly secured to the top of a bench and having a depending apron at the front of said bench and an upturned forwardly inclined flange at the rear thereof, said rear flange being disposed longitudinally at an angle to said apron, a wedge shaped block mounted on said bench plate to fit snugly along said flange with its forward edge disposed in substantially parallel relation with said apron, a clamping plate mounted on said apron for movement relative thereto to engage and clamp work positioned in said vise between said block and said clamping plate, and an operating lever pivotally carried by said apron to engage wedges formed in said clamping plate and operable to bind the work in said vise.

3. A bench vise comprising a planar bed plate adapted to be secured rigidly to a horizontal surface of a bench, said bed plate having a depending planar apron secured thereto along the forward edge thereof and at right angles thereto and an upstanding forwardly inclined flange secured thereto along the rearward edge thereof, said rear flange also being inclined relative to said apron in a plane parallel to said bed plate, a wedge block carried slidably on said bed plate, said block having a rear face inclined to lie in planar contact with said rear flange as the forward face thereof is parallel to said apron, said apron having supporting ledges formed at the lower edge thereof and a horizontal, forwardly extending fulcrum formed intermediate said ledges, a bolt secured centrally in said apron and extending forwardly therefrom, a generally planar clamping plate disposed substantially parallelsto said apron, being supported at its lower edge on said ledges and extending above said bed plate, said clamping plate bearing against said fulcrum and being perforated whereby to receive said bolt loosely, said clamping plate having a forwardly inclined arcuate wedge formed on the forward surface thereof concentrically with said bolt, and a lever carried r0tatably on the forwardly extending end of said bolt and operable when turned to engage said wedges to pivot said clamping plate rearwardly.

UNITED STATES PATENTS Moore et a1. Aug. 9, 1898 Mackay Aug. 5, 1913 Lawson Oct. 31, 1916 Cowles J an. 24, 1922 Sutton Nov. 18, 1941 FOREIGN PATENTS Italy Dec. 18, 1946

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