US1647441A - Tool holder - Google Patents

Description

M. E. GORMAN TOOL HOLDER Nqv. 1, 1927.

. Filed July 27. 1923 jymxlfifaima z,

Patented Nov. 1, 19127;

-- n ire sr V V MAX'E. eon-MAN, or NEWARK, New messy.

' rooiiHoLnER.

Application filed. my 27,

This invention relates to tool holders and has for its primary object the provision of a holder for interchangeably receiving tools of different types. j 1

Another object of the invention is to provide a holder capable of locking a tool therewith and wherein'the' use of a drift bar, wedge or other like implement is dispensed with for removing the tool from the holder.

A further object of the invention is the provision of a quick and efficient means of securing or removing a tool from its holder.

A still further object of the invention is to provide a novel form of holder which is simplein construction, cheap of manufacture and'easy of operation.

l/Vith these and other objects in view, the invention resides in the certain novel construction and combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claim, and

i are illustrated in the accompanying drawing, in which Figure 1 is a vertical section view through my improved holder showing a tool secured thereto.

Figure 2 is a horizontal sectional view on the line 22 of Figure 1.

Figure 3 is a perspective view of the holder and tool separated.

Figure 4 is a detail perspective view of the clamping jaws.

Hitherto, holders of this class have been provided with a tapering bore for the reception of a tapering shank formed on a tool, the same being wedged together for frictional contact. These holders are usually provided with a slot communicating with the bore and in which is adapted to be inserted a drift bar, wedge, or other like implement forcontact with the shank for ejecting the tool therefrom. This is objectionable as it required the use of an additional implement which must be always handy for the removal of the tool and which implement may be misplaced, thereby causing a loss of time to the workman until the same may be found. It is therefore my invention to eliminate this extra implement and the same is clearly set forth in the following.

Referring more particularly to the drawing, the reference numeral 10 designates a holder or stock of any suitable size and mate- .rial but the same is preferably constructed of steel, the holder further serving as a ree s. Serial as. 654,198}.

handlewhen thesame is in" use. The holder 10 is formed with a vertical bore 11 whose diameter is the same throughout its length, one end of the'bore opening at the bottom of the holder and the other end opening into a slot 12 formed-slightly below the .center' ofth'e holder.

A pair of semi-circular clamping jaws 13 are pivotally mounted as at l ttotheside walls of-the slot and the same are adapted to co-act with the shank of the tool presently to be described. A

spring 15 serves to constantly hold the jaws in a closed position. Thejaws 13 are each formed with amanipulating portion 15 whereby the same are adapted to be separated by compression of these portions by the fingers of the hand. i

The numeral 16 designates a toolof any. suitable type such as a chisel, screw driver or wrench, but in the present instance I have shown the same as constituting a rivet tool.-

The tool 16 includes a head 17 provided with a shank 18 of a diameter to snugly fit in the bore 11 of the holder. The extreme end of the shank 18 is provided with a ballshaped. head 19 for co-action by the jaws 13 when the shank has reached the limit of its insertion. I In order to prevent rotation of the tool with relation to the holder, I form the holder 10 'at the bottom thereof, with a pair of slots or kerfs 20 for receivingthe lugs 21 extending upward from the head 17 of the tool. The head 17 of the tool 16 is provided with a semi-circular recess 22 adapted to receive the stud end of the rivet whereby a. succession of blows imparted to portion 23 of the jaws 13, thereby separatmg the same against the tension of the spring. limit of its insertion, the jaws 13 will close about the head, and the lugs 21 will have entered their respective slots so as to hold the tool in its proper position within the holder. To remove the tool from the holder, the manipulating portions are depressed to disengage the jaws from the head and the When the shank has reached the G-LA tool Withdrawn. It will be noted that a blow imparted to the end of the holder will not cause undue strain upon the jaws as the force is taken up by the contact of the shoulders of the head with the end of the holder.

While I have described what I deem to be the most desirable embodiment of my invention, it is obvious that'man y of the details may be varied without in any way departing from the spirit of my invention, and

I. therefore do not limit myself to the exact details of constructlon herein set forth nor to anything less than the whole of my 1nvention limited only by the appended claim.

pair of movable co-acting cup shaped jaws mounted within said recess, spring means for normally holding said aws in closed positlon, a restrlcted mouth formed by said cupshaped jaws, a tool having a shank for insertion in said bore a spherical headon the free end of said shank for co-action with the walls of the restricted mouth upon insertion of said shank in said bore for automatically expanding said jaws against the spring means for permitting said head to be seated within and enclosed by the jaws upon the limit of insertion of said tool in said holder, and manipulative portions extending from said jaws and operable for manually expanding said aws from about said head to permit saidtool to be removed from said holder.

In testimony whereof I have affixed my signature.

MAX E. GORMAN.

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