Патент USA US2123131код для вставки
July 5, 1938- M. ZUGERMAYER ‘ 2,123,131 JAW ASSEMBLY ‘FOR VISES Filed , Jan. 25, 195'?‘ wanna -.IIImun ~'' m" v/g' . A? . - M . Z uge/"mayer INVENTOR E" ATTORN EY ' Patented July 5, 1938 2,123,131 1 UNITED ,sTArE-s PATENT‘ OFFICE“. 2,123,131; ‘ p g M . .lAW ASSEMBLY FOR VISES Melmore Zugermayer, Southampton, Pa. Application January 25, 1937, Serial No. 122,283 1 Claim. (Cl. 81-38) The invention relates to a bench vise attach ment and more especially to a jaw assembly for bench Vises. The primary object of the invention is the pro 5 vision of an attachment of this character, where in a four-jaw assembly can be used in connec tion with the bench vise so that work can be gripped or clamped at four points thereof to hold . The attachment comprises a bed plate 8 pref erably of ?at sided formation having the beveled corners 9 while centrally of this plate is a rela tively large square shaped opening it while at one side edge of the said plate is an outwardly Above the bed plate 8,,are arranged the op» 10 posed equilateral triangular shaped jaw sections I2 and I3, respectively, these being in pairs and the same is susceptible of use in a horizontal plane or in a vertical position when associated with a bench vise so that work can be ?rmly and I2 are downwardly extended abutment wings I5, these being bent at right angles from the inner 15 tachment. A further object of the invention is the provi sion of an attachment of this character, which in the assembly thereof is a unit in itself and is readily and easily applied to a bench vise for use therewith and in this manner converting the 25 latter from a two-jaw to a four-jaw vise. A further object of the invention is the pro vision of an attachment of this character, which is simple in its construction, thoroughly reliable and e?icient in operation, strong, durable, and 30 inexpensive to manufacture. With these and other objects in view, the in vention consists in the features of construction, combination and arrangement of parts as will be hereinafter more fully described, illustrated in 35 the accompanying drawing, which discloses the preferred embodiment of the invention and point ed out in the claims hereunto appended. In the accompanying drawing: Figure 1 is a plan view of the attachment con 40 structed in accordance with the invention. Figure 2 is a sectional view on the line 2--2 of Figure 1 looking in the direction of the arrows and showing the attachment in a vise. Figure 3 is a sectional view on the line 3--3 45 of Figure 1 looking in the direction ‘of the arrows. Figure 4 is a fragmentary sectional view on the line 4--4 of Figure 1 looking in the direction of the arrows. Similar reference characters indicate corre 50 sponding parts throughout the several views in the drawing. Referring to the drawing in detail, A desig nates generally a conventional type of bench vise 55 is usual. the work more ?rmly and securely and avoiding damage thereto resultant in the clamping of such work in the double jaw vise of the bench type. Another object of the invention is the provi sion of an attachment of this character, wherein securely held without liability of the shifting or Wobbling of such work when engaged in the at 20 the adjustable jaw 6 being moved toward and away from the ?xed jaw by a feed screw ‘I as having the ?xed and adjustable jaws 5 and B, respectively, and operating opposite each other, tapered centrally located extension I I. 7 extended from the ?at bottoms I4 of the sections edges of said sections I2 and are passed through the opening II] in the bed plate 8. The wings I5 at opposite ends are carried beyond the opening If! in the bed plate 8 while one of the sections I2 is riveted at I6 or otherwise made fast ‘to the 20 bed plate 8 while the other section is slidable upon said bed plate and to the slidable section I2 is connected at its longitudinal center a coiled retractile spring I‘! which is also ?xed at I8 close to the outer end of the extension II, the spring 25 being designed to separate the sections I2 from each other to the extent of the opening It. The sections I2 and I3 at the diagonal edges thereof are formed with upturned ?anges I9 and the said ?anges on the sections I3 at their‘ inner 30 ends meet each other while the ?anges I9 on the sections I2 at their inner ends are separated from each other. The ?anges I9 on the sections I2 are formed with guides 20 with which are inter?tted the 35 ?anges IQ of the sections I3 and such ?anges of both sections I2 and I3 constitute a four-jaw assembly for, attachment to the vise A. In the attachment of the four-jaw assembly, the wings I5 are inserted between the jaws 5 of said vise A with the wing on the ?xed section I2 contacting with the ?xed jaw 5 of said vise while the wing on the slidable section I2 contacts with the adjustable jaw I6 and thus on the turning of the screw ‘I the slidable section I2 and the 45 sections I3 will become adjusted relative to the ?xed section I2 for increasing or decreasing the capacity of the four-jaw assembly for the ?rm securing of Work within said assembly so that the work will be clamped at four points thereof or 50 at four sides or faces of the same. . When the adjustable jaw B of the vise is moved away from the ?xed jaw 5, the spring I‘! by its tension becomes active to have the slidable sec tions I2 of the assembly separate and thus the 2 2,123,131 wings l5 of these sections [2 will be held in con tact with the jaws of the vise A while the sec tions 13 slidably inter?tted with the sections l2 will open correspondingly with the said sections I2. What is claimed is: A jaw assembly for a vise having a ?xed jaw and a movable jaw, comprising opposed equilat eral substantially triangular shaped sections, each 10 having an upturned outer edge ?ange, a flat sided bed plate having the: said sections superimposed thereon and provided with beveled corners and a relatively large square shaped center opening, an outwardly tapered extension formed on said‘ bed plate, a coiled retractile spring having con nection with said extension and one of the sec tions, guides formed on the outer edge ?anges of a pair of the opposed sections and adjustably inter?tting the ?anges of the remaining opposed sections for e?ecting a four-jaw assembly, and downwardly extending abutment wings engaged through the center opening of the bed and for contact with the jaws of the vise when interposed therebetween, one wing being carried by the sec tion having'the. spring attached thereto and the other wing carried by the section opposed thereto. MELMORE ZUGERMAYER.