US2438797A

US2438797A - Portable small hand tool vise

Info

Publication number: US2438797A
Application number: US709254A
Authority: US
Inventors: Bagge Kaj
Original assignee: Individual
Current assignee: Individual
Priority date: 1946-11-12
Filing date: 1946-11-12
Publication date: 1948-03-30
Anticipated expiration: 1965-03-30

Description

March 30, 1948.

K. BAGGE PORTABLE SMALL HAND 'TOOL VISE' Filed Nov. 12, 1946 I INVENTOR ATTORNEY Patented Mar. 30, 1948 2,438,797 mem s MsL oo was aj S inland, Calif.

lippli cationihloyeniber 12, 194,5, s ri l no. 199.254

2 Claims. (01. 279-51) hi inv ion per ins to a Sma wi h nd or is capable of b in use .i ffi m li screw drivers, punches, scribes, fil'esfbits, drills, and other relatively smalltools', inan inter changeable manner. The 'toolof the present invention is particularly welladapted for us'efby jewelers, instrument makers, camera repair men, and wherever small tools are employed. in maring, adjusting, or repairing relatively delicate equipment.

Heretofore, jewelers, repair men, etc. have either employed small hand tools provided with individual handles or it was necessary to employ holder which required tightening and release of the small tool within the handle by a manually actuatable means such as a tightening collar or the like. The present invention distinguishes from these prior devices in that it provides a simple, efiicient vise capable of readily receiving and holding small tools without requiring manual tightening. As a result, a single, portable vise and handle may be readily used with a l rge number of tools varying in size or character, thereby obviating the necessity of having each of the tools provided with its own handle.

An object of the present invention, therefore, is to disclose and provide a small, portable, positively actuated hand tool vise.

A further object of the invention is to disclose and provide a portable, small hand tool vise in which the of the tool is automatically and positively grasped by manipulating the handle with the fingers of but one hand, thereby permitting the operator to hold or adjust his work with one hand while the other hand is free to selectively grasp, hold and manipulate any one of a large variety of tools.

A still further object of the invention is to disclose and provide a simple, efficient and economical construction specifically designed for the attainment of the objects hereinbefore recited.

These and other objects will become readily apparent to those skilled in the art from the following description of an exemplary form of device illustrated in the appended drawings.

In such drawing:

Fig. 1 is a side elevation of a hand tool vise in its normal position.

Fig. 2 is an end view thereof.

Fig. 3 is a side elevation, partly in section, illustrating the position of the parts immediately prior to the insertion of a small tool thereinto.

Fig. 4 is an end view thereof.

{is shown in these drawings, the device cornpri fs 'es"a"liollow cap it internally threaded as at ii and provided with a" tubular portion i2 of smaller diameter than the main 'lcody' portion of tlfe"cap.Thend*of the capmay be concave for the' purpo'se of receiving' 'the'thumb or the user," wherebypressure may be applied to the toolh'eld'by'the'device. Axially "p'os it'iondwithin the tool is a split collet, generaly indicated at it. This collet preferably has an externally threaded end portion iii in engagement with the internal threads ll of the cap and is provided with a substantially cylindrical body ll terminating at its lower end in a conical head. The head has conical, outwardly flaring surfaces 58 and may, if desired, be provided with an end portion having the oppositely inclined surfaces l9. The externally threaded end it, as well as the main body portion ll, of the collet is preferably hollow, the internal bore being indicated at 20. The conical end of the collet, as well as the major portion of its tubular body, is split by means of slots, generally indicated at 2! and 22, at right angles to each other, thereby providing for resiliently held collet head portions. It is to be understood that instead of the two transversely arranged slots 2| and 22, three or more angularly related slots may be used, thereby increasing the number of collet arms cooperating to hold the shank of any tool inserted axially into the collet l5.

Slidably mounted upon the tubular extension l2 of the cap and encircling the body I! of the collet is a sleeve 26. This sleeve is axially bored and counterbored at 25 so as to form a shoulder 26 capable of engaging the end of the tubular section I2 of the cap ll]. Since the tubular section I 2 is of reduced diameter, the upper end of the sleeve 24 is also capable of abutting the shoulder 21.

Between the shoulder 23 and a shoulder 28 formed in the lower end of the tubular section [2 of the cap is a spring 29 which normally presses the lower end of the sleeve 24 against the inclined surface l8 of the collet head I5. The lower end of the sleeve 24 is provided with an inwardly tapering surface 39, the angle of such surface being preferably slightly less with respect to the axis than the angle of the conical surface I8.

Normally, therefore, as shown in Fig. 1, the sleeve 24 is urged downwardly against the surface IB of the collet so as to bring the various arms of the collet together. When it is desired to introduce and hold a small hand tool, the

sleeve 24 is moved upwardly against the cap so as to compress spring 29, thereby permitting the collet to open, whereupon a tool may be inserted into the axial opening between the arms. After being inserted in this manner, the sleeve 24 is released, causing the arms of the collet to firmly grasp the tool. The inward, central movement of the arms of the collet is attained by the cooperating action of the internal taper 30 against the external taper [8.

It will be evident, therefore, that the device of the present invention may be readily and easily manufactured and has tremendous utility and field of usefulness wherever hand tools need be employed; p 7

All changes and modifications coming within the scope of the appended claims are embraced thereby.

V Iclaim:

1. A portable, small, hand tool vise and han-' dle comprising: a split collet having a cylindrical body portion, a substantially solid, externally threaded shank end and an enlarged conical head,

said collet being split through the conical head and body portion; a hollow, internally threaded cap connected to the threaded shank end of the-collet, said cap including a tubular portion surrounding the collet a tubular release sleeve carried by the tubular portion of the cap and extending around the collet for cooperation with the conical head thereof; and spring means between the cap and sleeve for normally engaging the sleeve with the conical head to hold the collet in closed, toolgrasping position.

2. A small hand tool vise comprising: a split collet having :a substantially solid, externally threaded shank end, a hollow body portion and an enlarged conical head, said head and body portion being longitudinally split to form resilient'collet arms; a hollow, internally threaded cap connected to the threaded shank end of the collet, said cap including a tubular portion of and spaced therefrom;