US2088975A - Cutting die fixture - Google Patents

Description

ug. 3, 1937. J, H; RANDQLPH v 2,088,975

GUTTING DIE FIXTURE Filed Nov. 18, 1935 Patented Angl 3, 1937 UNITED STAT-Es PATENT OFFICE i cU'r'rrNG DIEy Fix'rURE;

James H. Randolplnx-St. Louis, Mo., assignor to Randolph` Cutting` Die Company, St. Louis, Mo., apartnership composed of CharlesW. Randolph, John L. Randolph, Cecil H. Mann,` and himself as partners Application November 18, 1935, SeriaFNo. 50,253 4 claims. (ci. 164-29) This invention relates tocertain new and useful improvements in cutting die fixtures andlpertains more particularly to that class of.' dies used in cutting leather or leather substitutes as may be requiredin shoe manufacture. Y

The primary object of the invention is to `pro- Vide the cutting die fixture with improvedmeans for marking the parts which are'formed or cut by the fixture, with an identifying character to designate like cut-out parts. l

Another objectv of the invention is in providing the cutting die xture with improved marking means which is remotely disposed from the cutting edge of the fixture.

A further object of the invention is in providing the cutting die xture with marking `means of an indenting character and which means are disposed inwardly of the cutting edge of the fixture.

A still further object of the invention is in providing the cutting die fixture with resiliently mounted stamping or marking means. i

Other and further objects will appear in the specification and be specically pointed out in 5 the appended claims, reference being had to the accompanying drawing, exemplifying the inveni tion, and in whichzi Figure 1 is a plan elevation of a double-edged cutting die fixture having the invention applied 30 thereto. A

Figure 2 is an inverted view'of the structure shown in Fig. 1.

Figure 3 is a fragmentary vertical sectional view taken approximately on the line III-III 35 of Fig. 1.

Figure 4 is an enlarged vertical section taken approximately on the line IV-IV of Fig. 1.

Referring by numerals to the figures of the drawing, I designates a cutting die xture which 40 is made from a length of steel material which is banded so as to be continuous in its shape, and

in the present disclosure the Wall portion 2 of the fixture is provided with a pair of opposing cutting edges 3.

Extended from the inner surface of the wall portion 2 is a block 4 having end portions 5 and `6, and vertically supported in the end portion 5 is a pin 1 having a numeral carrying plate 8 at one end bearing a projected character or nu- 50 meral 9, and mounted on the pin 'l between the plate 8 thereof and the end portion 5, is a resiliently yieldable element I0. The pin 1 is slidably mounted in an aperture Il which is formed in the end portion 5 and is held therein 55 by the upper end of the pin being provided with a head l2 which' may be formed by' riveting or x aperture; l y

'The end portion 6 of the block 4 is` also provided with arreciprocally mounted pin `'l and-.a resiliently yieldable element IIJ on the pin` be,- tween` the end portion 6 "and the plate 8, but in this instance the parts referred to are inverted in their manner of assembly `so that the character 9' which is borne bythe pin 1 of the rend portion (will `be disposed in approximate alinement with one cutting edge 3 of the fixture, and the character 9 on the pin 1 which is mounted in the end portion 5 of the block, will be disposed in approximate alinement with the other cutting edge 3 of the fixture.

As cutting die fixtures of this nature are used in shoe manufacturing for 4providing body portions of the shoes, such as toe tip portions, quarters and Vamps, aswell as other parts required, it is quite obvious' that different sets of cutting dies are employed in the manufacture of the various sizes of shoes required. This invention therefore pertains to an improved structure which forms part of the cutting de"fixture for size marking the parts as they are cut or formed by the die or fixture.

In the operation of this improved stamp marking structure in cooperation with a cutting die fixture, upon engagement of the Working cutting edge 3 of the fixture on a leather or leather substitute layer, as the cutting edge is forced through the layer, the character 9 upon engagpeening thefextending end of the pinA overvthe.

e ing the layer, will force the plate 8 on which it is mounted, upwardly, thereby compressing the resiliently yieldable element I0 and providing a yield for the character 9 so that the Acutting edge can be forced through the thickness of the leather layer and at the same time, character 9 will cause an indentation or impression thereof to be formed in the layer.

For the purpose of illustration, the character 9 is shown in the form of a numeral representing seven as denoting a size seven shoe to which the part cut-out by the cutting die lixture, is applicable, therefore the other cutting die fixtures of the set of fixtures required for making a similar size shoe, will bear a like numeral, and consequently all of the cut-out parts bearing the same numeral can be readily identifled for collecting or assembling the parts.

The resilient element IU which is mounted on n respective pins 'l may be made of any desired resiliently yieldable material or a coil spring may be used instead, as it is essential that the pins 'l mounted on its plate 8 in a projected manner so that its shape or character will be indented or impressed in the cut-out or patterned parts. x A sl the cutting die fixture shown, is double-edged, it is obvious that a pair of oppositely disposed size marking characters 9 are required and as shown.

If, however, a single cutting edge die fixture' is' used, but a single identifying character is necessary.

Heretofore, cutting die fixtures 'are provided projectingmember extending from a side thereof with identifying markings in and on the cutting edges themselves, this construction being costly in manufacture and in addition, vtends to retard the cuttingl operation of the die fixtures.

While a preferred embodiment of the invention is shown, it is to be understood that various changes, size, shape and arrangements of parts, may be resorted to without departing from the spirit and scope of the inventionof the claims hereto.

What lI claim is:-

1. A cutting die fixture having a rigidly fixed projecting member disposed at the center of the depth of the fixture, a marking device supported by said member inwardly of the cutting edge of the fixture, said device comprising a pin slidably mounted in said member and having a character identifying element on one end, and a resilient element interposed between said member and the identifying element.

2. A cutting die fixture having an integrally ,formed inwardly projecting member disposed centrally of the depth of the fixture, a marking device resiliently supported by said member, said device v comprising a yieldably slidable pin mounted in said member and having a character identifying element on one end and a retaining 3; A cutting die xture having an inwardly centrally of its depth, a pin slidably mounted in said member and having a marking element on one end, and a resilient element mounted on said pinr between said member and said marking element.

4. A double-edged cutting die xture having an inwardly projecting member extending from a side thereof and disposed centrally of its depth, anda pair of staggered oppositely directed and resiliently held marking elements supported in said member.

JAMES H. RANDOLPH.

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