US2450799A - Cam-teeth actuated vise - Google Patents

Description

H. HELBIG- CAM-TEETH ACTUATEDAIVISE 2 Sheets-Sheet 1 Filed June 2:5, 194'! \NVENTOR HUGO HELBIG ATTORNEYS Oct 5, 1948.

H. HELBIG CAM-TEETH ACTUATED VISE 2 Sheets-Sheet 2 File d June 25,' 1947 INVENTOR HUGO HELBIG BY% I ATTORN YS Patented Oct. 5, i948 UNITED S TATES OFFICE- cat/macro Acrnnrsn rise Hugo .Helhig, RacinaWis. Application June as, 1947., sen-raisin. asset;

(Char- 26) v2 ..Claims.

invention refers. to adjustable clamps" or Vises, and it has for primary object to provide a simple effective lever controlled threaded connection between the movable and stationary jaws of the vise, wherebyafiter the-vise is manual- 1y :adjustedfor gripping .an article to be worked upon, a final'and gradual pressure is exerted for frictionally clamping and locking the article between the jaws for working :upon the same, the pressure being exerted by an intemneshed, gear connection. A further-object of my invention is to provide eatguide rodfor the movable jaw, having angularly disposed teeth or screw threaded sections engageable with a transversely disposed corresponding screw threaded section, whereby the sets of teeth are intermittently meshed to exert a finai friction grip for firmly holding and locking the article gripped between the jaws.

A further object of my invention is to provide one face of the guide rod with transversely disposed angular teeth and a reciprocative correspondingly toothed bolt, there being means for manually shifting the bolt, whereby it is meshed with the guide rod teeth to cause a wedging action between the toothed members for exerting a final clam-ping and locking action upon work interposed between the jaws.

With the above and other objects in view, which will appear as the description proceeds, the invention resides in the novel construction, combination and arrangement of parts, substantially as hereinafter described, and more particularly defined by the appended claims, it being understood that such changes in the precise embodiment of the herein disclosed invention may be made as come within the scope of the claims.

In the accompanying drawings is illustrated one complete example of the physical embodiment of the present invention constructed according to the best mode so far devised for the practical application of the principles thereof.

In the drawings:

Figure 1 represents a side elevation of a vise embodying one exemplificati-on of my invention, the same being partly in section, as indicated by line 1-4 of Figure 2.

Figure 2 is an end elevation of the vise, partly in section as indicated by line 2-2 of Figure 1.

Figure 3 is a fragmentary plan sectional view, illustrating the toothed actuating mechanism for the movable body, the parts being disconnected.

Figure 4 is a similar view showing the toothed mechanism in their meshed position.

Figure 5 is a detailed side elevation showing the '2 threaded parts intermeshed, partly in section as indicated byline 5H5 of Figure 4.

Figure ,6 is a fragmentary bottom plan view .of arnovable vise jaw guide rod, illustrating the pitch of; teeth upon one face thereof.

Referring by: characters to-the drawings, 1 indicates the fixed vise jaw extending from a [bed block-2 which may "be anchored to any suitable element.

The \bed block 2 is apertured for the rec ption of guide rods .3 and 3, which guide rods. extend from the base of a movable. visehjaw I The guide'rod 3, in effect, comprises a rack. and its underf'ace is provided with a series of transversely disposed angular teeth 4, which teeth are preferably of the saw-tooth type.

The bed block 2 of the fixed vise jaw is provided with a transversely disposed slot 5 under the guide rod 3, and said slot has reciprocatively mounted therein a 'bolt 6, the upper, inner end face of which is formed with angularly disposed teeth 1, which teeth are in horizontal alignment with the teeth of the guide rod and of the same pitch as the latter, it being noted that the inner ends of the saw-teeth carried by the bolt 6 are pointed or beveled off, whereby when the bolt is shifted in its slot for intermeshed engagement with the teeth of the guide rod, the tapered ends will readily slide into engagement with the guide rod rack teeth.

As clearly illustrated in the drawings, the slot 5, into which the bolt is nested, is of slightly greater width than the bolt 6, whereby said bolt is free to move bodily back and forth transversely in the slot. Hence, as best indicated in Figure 3 of the drawings, when the bolt is disconnected from the guide rod 3, it is held back against the rear wall of the slot by spring controlled pins a, the same being carried by the bed block.

The outer end of the bolt 6 is nested between corresponding flange walls 2, which extend from one side of the bed block 2.

The forked ends of the bolt are provided with a pin 9, which is engaged by the forked end of a lever Ill. The lever is nested in the pocket formed by the flanges 2' and is pivoted upon a stud l0 carried by said flanges.

Journaled in the lower'ends of the flanges 2 is a rock shaft II, which shaft carries a forked arm l2 that engages a pin I0 mounted in the lower end of the lever ID. One end of the shaft ll extends beyond the bed block pocket and has secured thereto an actuating arm [3, whereby the toothed bolt through its link connections with 55 said arm is manually actuated.

From the foregoing description, it is apparent when a block or piece of work A, as indicated in dotted lines, Figure l, is inserted between the vise jaws, the movable jaw is manually shifted to a position where it engages the block A, which is to be clamped.

The above operation is readily effected due to the fact that the toothed upper guide rod is clear from engagement with the bolt 6, as best shown in Figures 2 and 3 of the drawings.

After the jaws are thus set with relation to the piece of work to be clamped, it is essential to exert a positive heavy pressure upon the parts and to accomplish this, the operator swings the actuating arm l3, whereby the saw-toothed section of the bolt 5 engages the teeth of the guide arm 4, it being understood that the flat faces of the guide arm teeth are positioned, so that the corresponding flat faces of the bolt teeth will abut each other, and thus, due to their intermeshed engagement will exert a drawing force upon the movable jaw. Prior to exerting this force, the bolt will transversely yield in its socket and when the spring opposed face of said boltis seated positively upon the slot walls, it is manifest that the entire pressure exerted will forcibly draw the movable jaw inward, until its movement is arrested by the pressure of said jaw upon the work to be clamped.

I claim:

l. A vise comprising a fixed jaw and a movable jaw, a guide rod carried by the movable jaw, slidable in the fixed jaw, angular teeth formed in the lower face of the guide rod, a bolt positioned at a right angle to the guide rod slidable in the fixed jaw body, teeth upon the end of the said bolt for selective engagement with the teeth of the guide bar, an actuating arm mounted upon the fixed jaw body and a toggle link connection between the actuating arm and bolt.

2. A vise comprising a bed block having a jaw extending therefrom provided with apertures, a movable jaw, guide rods carried by the movable jaw engaging the bed apertures, angularly disposed saw-teeth extending across the bottom surface of one of the guide rods, a bolt rectangular in cross section, reciprocatively mounted to slide in the bed block, angularly disposed saw-teeth interrupting the upper surface of the bolt, having pointed ends engageable with the saw-teeth of the guide rod and manual means for imparting reciprocative movement to the bolt, whereby its saw-teeth are moved into meshed engagement with the saw-teeth of the aforesaid guide rod or moved clear of the same.

HUGO HELBIG.

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

UNITED STATES PATENTS Number Name Date 76,519 Petrie Apr. 7, 1868 1,082,112 Cutler Dec. 23, 1913 1,869,631 Swanson Aug. 2, 1932

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