US1438692A - Tool for setting fastener parts - Google Patents

Description

' D. BOURQUE.

TOOL FOR SETTING FASTENER PARTS.

' APPLICATION FILED FEB. 16. 1921.

Patented D'e0.12,192 2.

.BOMWW I f- 127122621202 David 534'.

d ll

Patented Dec. 12, i922.

DAVID BOURQUE, OF AMESBURY, MASSACHUSETTS, ASSIGNOR TO G. W; MURPHY COMPANY, OF AMESBURY, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

'roor. non sn'rcrrne rnsrnivnn rears.

Application filed February 16, 1921. Serial No. 445,354.

To all whom it may 00mm.-

Beit known that 1, DAVID Boungun, a'

citizen of the United States, and a resident of Ames'bury county of Essex and State of Massachusetts, have inventedan Improvementin Tools for Setting Fastener Parts, of which the following description, in con nection with the accompanying drawings, is a specification, like characters on the drawings representing like parts. i

This invention has to do with a tool par ticularly designed for securing elements of separable fasteners to vehicle curtains or ther parts to which it is desired to attach them. Herein I have shown a tool particularly designed for securing the eyelet of a turnbutton fastener", such eyelet being of the type shown in my application Serial No." 349,749, filed-Jan. 6, 1920. k Y

My invention will best be understood by reference to the following description of the form thereof which I haveshown byway of example I in the accompanying drawings; whereinzf i I Fig. 1 is a plan view of an eyelet member for a turnbutton fastener for use with which the tool shown is particularly de signed;

Fig. 2 is a section on the line 22 of Fig. 1; k

Fig. 3 is a partial elevation partial section of a tool embodying my invention; 7

Fig. 4; is a fragmentary section showing the eyelet about to be set by the tool, the section of the eyelet being substantially on the line 4l-l ofFig. 1; and

Fig. 5 is a similar view showing the setting operation completed.

Referring to the drawings, I have there shown an eyelet member 9 of a turnbutton fastener attached to a curtain 11, such eyelet in the form shown having a generally circular contour but being provided with an elliptical opening 13. The eyelet is scoured to the curtain by means of prongs 15 extending rearwardly from the outer margin thereof and adapted to extend through the curtain 11 and be clinched over a washer 17. In the form of eyelet shown the margin of the opening 13 is provided with rearwardly extending ear members 19 which project through the opening in the curtain which aligns with the opening 13 and are adapted to make contact with the supporting surface of the turnbutton member proper as described in my application above possible deformation of theeyelet itself by the clinching blows and particularly a bending of one ofthe ears 19 which may cause thefsanie to bind on themale member of the fastener. My invention provides a tool whereby eyelets may be rapidly and accurately set without any such troubles as are here referred to.

Referring to F ig.3 I have there shown a t'oolembodying my invention and including a stock 21 having an end face 23 which may serve as a clinching shoulder for flattening down the prongs of the eyelet in the manner shown in Fig. 5, the outer diameter of this facet however, preferably being such as not to extend to the'roots of the prongs strong spring 29 interposed between the upper end of the sleeve and a head 31 on the end of the stock, which spring nor mally thrusts the sleeve forward against a stop provided by an enlargement 33 at the end of the stock and into the position shown in Fig. 3 where the upsetting shoulder 27 is in advance of the end face 23 of the stock. Referring to Fig. 3 it will thus be i seen that if the tool is properly positioned over the assembled parts of the eyelet, as shown in Fig. 4:, preferably by means hereafter described, and the tool pressed downwardly as by the blow of a mallet, the stock 21 and sleeve 25 are moved downwardly as a. unit and the shoulder 27 embracing the several prongs 15 will simultaneously and uniformly upset them and turn. them inlojwhere they pass through the washer 17.

wardly. In this action they will be carried A ting operation.

5 and the face 23 will flatten down and firmly clinch the prongs 15.

' Suitable means are providedfor positioning thetool and herein for the further pur-l pose of supporting the parts forming the inner wall of the eyelet" opening 13 and preventing them from being deformed in the setting operation. For 'this purpose there is mounted in the end of the stock a pilot member 35 having an end 37 formed. to fit the opening l3gand to support the walls thereof, such as the ears 19 in the set- Herein this pilot member 35 telescopes within the stock 21,.being supportedtherein by a cross pin 39 which plays in a suitable slot in the pilot and being normally supported in its outward position beyond the setting face of'the sleeve 25, as shown in Fig. 3, by a relatively light spring 41.

To accommodate the ears 19 and prevent them from being damaged by the setting face 23ofthe stocln the' body portion of the pilot is made larger than the end 37 which fits the opening in the eyelet and thus when the pilot is depressed within the stock, as shownin Figifi, a clearance 43 'is providedfor, intofwhich the ears 19 may project, this clearance being located inwardly of the setting face 23 andsurr'ounding the end 37 of the pilot, against which the ears 19lie. Thus the ears 19' are not only sup ported and held in their position by the end 37 of the pilot but provision is made whereby the setting face 23 will not come in contact with them but can pass beyond. them firmly to clinch the attaching prongs 15.

v Having thus described in detail the particular form of tool shown by way of example in the accompanying drawings, the principles exemplified thereby which I claim as new and desire to secure by Letters Pat ent I shall express in the following claims:

1. A tool for setting eyelets of separable fasteners which have a central opening and a set of prongs around the margin of the eyelet comprising apilot to fit and support I the Walls of the eyelet opening andan upsetting shoulder radially remote therefrom to oppose the prongs of theeyelet.

2. A tool for setting eyelets of separable fasteners comprising a stockhaving a pilot to fit and support the walls of the eyelet opening, a sleeve carried by the stock having an upsetting shoulder facing the prongs of the eyelet and a spring supporting the sleeve. i

3. A tool for setting eyelets of separable fasteners which have a central opening and forming an'upsetting shoulder and a spring normally holdingthe edge of said sleeve beyo'n'd'the end face of the stock.

5. A tool for setting'eyelets of separable fasteners comprising; a stock having a clinching face, a pilothaving a reduced end adapted to fit and support "the walls ofthe eyelet opening, said pilot being yieldably mounted in said stock and providing a space between said reduced end and clinching face 7 to receive portions of the eyelet,

6. A tool for setting eyeletsiof separable fasteners comprising a stock, a sleeve sur' rounding the stock and having an edge forming an upsetting shoulder normally yieldably supported beyond the end of the stoclrand a, pilot yieldably held in the stock having a'reduced end shaped to fit andsupport the walls of the eyelet opening, said end being normally supported beyond the edge of said sleeve.

In testimony whereof, have signed my name to this specification.

DAVID ,BOURQUE.

Images