US2611287A - Sheet metal guide and support for vise jaws - Google Patents

Description

Sept. 23, 1952 BRANDSTAD SHEET METAL GUIDE AND SUPPORT FOR VISE JAWS Filed July 2'7, 1948 Wren/fa? 44/44 72-7 ZIP/4 40:2790 w W Patented Sept. 23, 1952 SHEET METAL GUIDE AND SUPPORT FOR vIsEJAWs- Malte Brandstad, Torshalla, Sweden I I Application July 27, 1948, Serial No. 40,969

In Sweden March 10, 1947 2 Claims.

My invention relates to vises of the type wherein the jaws consist of sheet metal.

It is an object of my invention to provide a vise of this kind which may be produced at a low cost and which is very strong and durable even if made of comparatively thin sheet metal.

Another object of my invention is to provide a vise in which all parts of the mechanism connecting the movable jaw with the stationary jaw are encased or concealed, and which has a neat appearance with smooth outer surfaces so that filing, etc. may easily be removed during cleaning.

Other objects of the invention will appear from the following detailed description of a preferred embodiment thereof, reference being had to the accompanying drawing wherein:

Fig. l is a side view, partly in longitudinal section of the vise;

Fig. 2 is a plan view of the vise,

Fig. 3 is a cross sectional View on lines III--III of Fig. 1, and

Fig. 4 is a cross-sectional view taken on line IV-IV of Fig. 1.

In the drawing I represents the stationary jaw of the vise and 2 its movable jaw. Each jaw is made from sheet metal, preferably sheet steel, and consists of two similar halves Ia, lb and 2a, 2b, respectively, each half being drawn or pressed in the form of a trough, and the two halves forming each jaw being connected by welding at their abutting edges which are situated in the vertical plane of symmetry of the vise. A fastening plate 3 is connected to the underside of the stationary jaw I as by welding and is provided with apertures permitting the vise to be rigidly secured to a bench by bolts in the ordinary manner.

The movable jaw 2 is slidably mounted in the stationary jaw I. As shown, the stationary jaw l is formed with a lower channel-shaped guideway 4 in which a nut 5 is fixedly mounted at the outer end. The movable jaw 2 is formed with a lower slide portion [4 adapted to be received in the guideway 4 and movable therein in longitudinal direction. In the movable jaw 2 a clampin screw 6 is revolubly mounted. This screw extends through the slide portion l4 and engages the nut 5, as shown. The clamping screw 6 is provided with a head I at its outer end and with an operating lever B slidingly mounted in a bore in the head. A hardened wear plate 9 is secured to the movable jaw 2 under the head I of the clamping screw, said plate being formed with a bushing extending through the wall of the jaw and forming a bearing for the clamping screw 6 which is held against axial displacement by an open washer Ii] secured to the inner side of the movable jaw 2 and engagin an annular groove in the screw.

The nut 5 has machined side surfaces II, and the lower edges of the slide portion of the movable jaw 2 which are spaced from eachother are turned inwardly at right angles, as shown at I2, so as to engage the side surfaces H of the nut 5 which thus serves as a lateral guide for the movable jaw 2. The inturned lower edges of the movable jaw increase the strength and stiffness of the same and provide larger base surfaces for taking up vertical pressure acting on the jaw. These base surfaces are adapted to slide upon wearstrips l3 preferably made from hardened steel and secured to the bottom of the guideway 4 by means of screws [9.

As shown in Fig. 3, the upper part l5 of the slide member I 4 has the cross section of an inverted V and engages in a similarly shaped upper portion [6 of the guideway 4. This arrangement permits any clearance which may exist in lateral direction between the slide member I 4 and the guideway A to be eliminated simply by loosening the screws of the wear strips l3 and inserting additional strips of suitable thickness between the first-mentioned strips and the bottom of the guideway 4.

The jaws are provided with gripping members I! and I8, each consisting of a hardened steel piece which is secured to the respective jaw by arc welding and which has a thickness sufiicient to prevent the same from being de-hardened during the Welding operation.

What I claim is:

1. In a vise, a stationary jaw provided with a fastening plate and composed of two image-like channel-shaped halves of drawn sheet metal welded together at their abutting edges, the lower portion of said jaw forming a straight channel-shaped guideway having a flat bottom wall, a nut secured to said bottom wall and having side surfaces spaced from interior side surfaces of said guideway, a movable jaw also composed of two image-like channel-shaped halves of drawn sheet metal welded together at their abutting edges and formed with a lower straight slide portion which is slidingly mounted in the guideway of the stationary jaw, the upper portions of the slide and the guideway each having an inverted V-shaped cross section and the slide portion having spaced lower edges which are turned inwardly at right angles so as to engage the side surfaces of the nut and to provide there- 3 with a guide for the movable jaw, a clamping screw revolubly mounted in the movable jaw, said screw extending through said slide portion and engaging said nut, and wear strips mounted on said bottom wall and beneath the inturned 5 guideway by screws so as 'to permit insertion of additional strips under the wear strips for ad-- .justment purposes aif'ter loosening the screws.

MALTE BRANDSTAD.

4 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 82,095 Dibble Sept. 15, 1868 397,794 Gates Feb. 12, 1889 1,345,403 Retsiger July 6, 1920 1Q 1,538,500 Aubard May 19, 1925 2,467,658 Carnelli Apr. 19, 1949 FOREIGN PATENTS Number Country Date 414,579 Germany June 9, 1925 509,674 Great Britain July 19, 1939

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