US2415769A

US2415769A - Material-perforating and eyeletsetting apparatus

Info

Publication number: US2415769A
Application number: US564867A
Authority: US
Inventors: Stenson Olaf
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1944-11-23
Filing date: 1944-11-23
Publication date: 1947-02-11
Anticipated expiration: 1964-02-11

Description

Feb. 11, 1947. o. STENSON 2,415,769

MATERIAL-PERFORATING AND EYELET-SETTING APPARATUS Filed Nov. 25, 1944 2 Sheets-Sfieet 1 F/a. I

EVMZ W ATTOR/VFV 2 Sheets-Sheet 2 Q. ISTENSON WIYZIIW Filed Nov. 25, 1944 MATERIAL-PERFORATING AND EYELET-SETTING APPARATUS Patented Feb. 11, 1947 nita MATERIAL-PERFGRATING AND EYELET- SETTKNG APPARATUS ()la-f Stenson, Chicago, 111., assignor to Western Electric Company, Incorporated, New York, N. Y., a corporation of New York Application November 23, 1944, Serial No. 564,867

2 *Claims.

This invention relates to article working apparatus and more particularly to a combined perforating and rivet setting apparatus.

An object of this invention is the provision of a simple and practicable apparatus combining means for efficiently performing perforating and rivet setting operations.

In accordance with the above object, wherein the features of this invention, in one embodiment thereof, are applied to an apparatus for attaching terminals by means of eyelets to long flat resistance cards to be used in potentiometers, there is provided a single supporting frame on which are mounted vertically aligned or superposed perforating and rivet setting heads arranged below and above a common bed. Reciprocably mounted in the frame is a die cooperatin with a fixed card perforating punch mounted on the lower face of the common bed and an eyelet setting tool cooperating with a fixed die mounted on the upper face of the common bed. A common actuating means employing a spring-returned toggle mechanism operatively connected to the reciprocable perforating die and rivet setting tool serves to operate the latter die and tool, which are used alternately first to perforate the card and then to set an eyelet passing through the card perforation and a perforated terminal member to seal the terminal member to the card.

Other-objects and advantages of this invention will more fully appear from the following detailed description, taken in conjunction with the accompanying drawings, in which Fig. 1 is an elevation, partly in section, of a perforating and rivet setting apparatus embodying the features of the invention;

Fig. 2 is a front elevation of the apparatus as viewed from the left of Fig. 1;

Figs. 3 and 4 are enlarged fragmentary central vertical sections of portions of Fig. 1 showing the rivet setting tool and die and the perforating punch and die, respectively, in their normal inoperative positions; and

Figs. 5 and 6 are fragmentary vertical sections through the terminal member, card and eyelet before and after the eyelet setting operation.

Referring to the drawings, iii indicates a vertical frame which may be suitably attached to a work bench or other support, indicated fragmentarily at i l. Reciprocably mounted for vertical movement in upper and lower forwardly extending arms :2 and is (Fig. 2) of the frame is an eyelet setting tool l4 and a perforating die k for supporting a fixed punch it, which cooperates with the perforating die 15 and a fixed die 28, which cooperates with the eyelet setting tool 14. Th setting too-l M and die 28 are so formed that, upon a downward operative movement of the tool M (Fig. 3), an eyelet 22 seated on the die 2%) and having its tubular portion extending through apertures in a flat resistance cardzii and a terminal member 2! will be set and clinched in the manner shown in Fig. 6.

Recesses

25 and 26 are provided in the upper and lower frame arms l2 and i3, in which are pivoted at 29 and 30 levers 3i and 32, respectively. The lever 3! is suitably pivotally connected at one end at 33 to a bifurcated upper end of the setting tool l4 and the lever 32 is similarly connected at 3% to the die E5, the end of the lever being entered in a slot 3'! in the die. At their opposite or right ends (Fig. 1), the levers 3i and 32 are pivotally connected at Hand 39 to outer ends of toggle links it and 4t, respectively, the inner ends thereof being pivotally connected at 3 5. Attached to the togglelink id is an L-shaped lever 55, to the lower end of which is fixed, as indicated at 46, one end of a flexible link or cord M, the cord extending forward, as viewed in Fig. 2, or to the left, as Viewed in Fig. 1, and over a guide or pulley wheel 63 journalled on a bearing arm 49 integral with thefra'me it. From the pulley wheel 33, the cord ifl extends downwardly and is connected to a suitable foot treadle (not shown). I

Slidably fitted in an aperture formed in the frame It is a hollow plunger 5i which is normally urged outwardly by a compression spring 52 bearing at opposite ends against inner walls of the aperture and plunger. The outer end of the plunger 5! constantly engages overlapping inner end faces of the togglelinks ii! and t! and in central alignment with the pivotal connection M. In the normal position of the toggle links it? and 5.! and the plunger M, as shown in broken outline in Fig. 1, the levers 3! and szwill also assume the broken outline position thereof, wherel in they bear against inclined stop faces 53 and of the frame ID to limit the operative movement of the lever and thereby the rivet setting tool I4, as shown to the full line position of these parts in Fig. 1. To limit a similar movement of the lever 32 and thereby the perforating die i5, as shown in full line position in Fig. 1, an adjustable stop screw 89 is mounted. in the frame'arm l3.

Fulcrumed at its inner or right end (Fig. 1) in a notch 6| formed in the frame id is a stripper plate 62, which, at its outer or left end, is slotted at 65 to freely surround the perforating punch I9. A tension spring 66 entered in an aperture in the frame arm I8 and attached at its upper end, as indicated at 61, to the arm and, at its lower end, as indicated at B8, to the stripper plate, serves to normally maintain the plate in its normal position abutting the lower face of the frame arm 18. Journalled in bearing plates 69 fixed to opposite faces of the frame arm i8 and also in the arm is a rotatable shaft 12, which is notched intermediate its ends to provide a fiat face 13, which normally bears in parallel relation against the upper face of the stripper plate. A handle 74 attached to one end of the shaft 72 provides means for manually actuating the shaft in a counterclockwise direction (Fig. 1) to cam the stripper plate 62 about its fulcrum point El and thus stripping the perforated card 23 from the perforating punch 15.

In the use of the apparatus above described, the flat card 23, with a perforated terminal member 24 correctly located thereon and retained in position by a suitable tool, which includes clamping jaws 15, shown fragmentarily (Figs. 1 and 4) is entered between the retracted perforating die I and the fixed punch 19, the perforation in the terminal member being aligned with and pressed upwardly to enter the punch therein, as shown in Fig. 4. While the card 23 and terminal member 24 are held in the position described, the foot treadle (not shown) is depressed and, by means of the cord 41 and lever 45, the toggle die i 5 is idly advanced upwardly. The release links 49 and M are actuated from their normal broken outline positions to their operative full line positions (Fig. 1), which serves to simultaneously rockthe levers 3i and 32 to their full line positions, thus advancing the perforating die 15 upwardly to cause,- in cooperation with the stationary punch IS, a perforation of the card 23. At the same time, the rivet setting tool I4 is idly advanced downwardly. Upon release of the foot treadle, the operative parts of the apparatus are returned in the manner previously described by the action of the spring-pressed plunger 5| and the spring to their broken outline positions. Thereafter, the perforated card 23 is stripped from the punch i 9 in the manner described hereinhefore by rocking the hand lever 14 in a counterclockwise direction (Fig. 1).

Without releasing the clamping jaws '45, an eyelet 22 is then pressed by hand into the perforations in the card 23 and terminal member 24.

i and perforating die 5 to their normal positions and the attaching of terminal members 24 to cards 23 is repeated in the manner above described by alternate use of the perforating die I5 and cooperating punch 19 and the rivet setting tool M and cooperating die 29.

What is claimed is:

1. In a perforating and rivet setting apparatus, a frame, a perforating punch and die set on said frame, a rivet setting tool and die coaxially aligned therewith on said frame, said perforating punch and rivet setting die being fixedly supported on said frame between said perforating die and rivet setting tool, said latter die and tool being reciprocably mounted on said frame. levers operatively connected to said perforating die and rivet setting tool, a toggle mechanism comprising a pair of similar links interconnected at adjacent ends and operatively connected at their opposite ends to said levers, means for actuating said toggle mechanism to simultaneously actuate said perforating die and rivet setting tool, and a spring pressed plunger mounted in said frame operatively bearing against said adjacent ends of said links for returning said toggle mechanism and thereby said perforating die and rivet setting tool to their normal positions.

2. In a perforating and rivet setting apparatus, a frame having an arm extending laterally therefrom, said arm being provided on one surface with a fixed element of a punch and die means and on the opposite surface with an aligned fixed element of a rivet setting means, a pair of oppositely moving aligned plungers mounted in said frame, one of said plungers carrying the other element of said punch and die means and the other plunger carrying the other element of said rivet setting means, levers pivoted on said frame and operatively connected to said plungers, a toggle mechanism comprising a pair of similar links pivoted at their opposite ends to said levers and at their other ends to each other, an actuator fixed to one of said links for operating said toggle mechanism to simultaneously actuate said plungers and thereby said elements of said punch and die means and said rivet setting means, and a spring pressed plunger mounted in said frame operatively bearing against said pivotally connected other ends of said links for returning said toggle mechanism and thereby said plungers to their normal positions.

OLAF STENSON.

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

UNITED STATES PATENTS Number Name Date 1,518,085 Hall Dec. 2, 1924 1,554,415 Cote Sept. 22, 1925 585,835 Steen, Jr. July 6, 1897 1,302,516 Davey May 6, 1919 1,524,927 Hagen Feb. 3, 1925 1,130,121 Thrasher Mar. 2, 1915 1,186,169 Burgess June 6, 1916 FOREIGN PATENTS Number Country Date German Oct. 17, 1933