US2181903A - Presser member for clicking machines - Google Patents

Description

Dec. 5, 1939. M. MAI-:SER

PREYSSER MEMBR FOR CLICKING MACHINES Filed July 2, 1938 2 Sheets-Sheet 1 @VEA/TU@ -a M 1MM Dec. 5, 1939. M. MAESER 2,181,903

PRESSER MEMBER FOR CLICKING MACHINES Filed July 2,` 1958 2 Sheets-Sheet 2 Patented Dec. 5, 1939 t UNITED STATES PATENT oFFlcE PRESSER MEMBER FOR CLICKING MACHINES Mieth Maeser, Beverly, Mass., assignorv to United Shoe Machinery Corporation, Borough of Flemington, N. J., a corporation of New Jersey Application July 2, 1938, SerialNo. 217,240

9 Claims. (Cl. 164-23) This'invention relates to machines for cutting ting block I6 and for movement with the spindle blanks from sheet material and is herein illusheightwise thereof. The presser member I4 comtrated 'in connection with a clicking machine of prises a body portion I8, an end of which engages I the type illustrated in United States Letters Patthe spindle,v and a cap 20 partially surrounding iT ent No. 1,629,870, granted May 24, 1927, upon the spindle and secured thereto by means of i'V an application led in the name of P. J Horgan. U-bolts 22 and 24.

Machines of the type referred to are provided The body portion of the presser member is a with a presser member adapted to be swung latbox-likeintegral casting preferably of an alloy erally over a cutting block or bed into operative of a light metal such as aluminum and has at one lo relation 'to a freely movable die located upon end thereof semi-cylindrical portions 26 which 10 sheet material positioned upon the block, the constitute bearings for engagement with the spinmember being movable in a heightwise direction die I2. Extending from the lOWer Cylindrieal to forcev thedie through the material to produce portion 25'S a flat base PertiOn 0r plate 23 Which a blank.4 The machine disclosed in the patent reis narrow near the spindle but flares outwardly ferred to is provided with a presser member comthereof to form a substantially rectangular plate. l5? posed of light metal in order to minimize the ef- Extending frein the baSe Plate 23 l0ngitudinally fort required of an operator in swinging the thereof is a central reinforcing wall or partition member over the cutting bed and in stopping in the form of a vertical plate 30. The plate 30 it in operative position over the work. is cui away to form openings 32 and 34 leaving 2O It'is an object of the present invention to pro'- struts 35 and 38 extending between the base plate 20 videan improved presser member, for machines and a t0n plate 39 aS Well aS ribS 40 along the of the 4type referred to, so constructed that the under side of the top plate and ribs 42 along the eirort required to swing it over the cutting block upper surface of the base plate- This Construcas well as to arrest its movement is still further tien InakeS fOr lightneSS but at the Same time 25 reduced. To this end and as shown, I have proprovides adequate strength. There are provided vided a presser member, preferably composed of two side walls in the form of plates 44 which an alloy of a light metal such as aluminum, haveXtend frein the hearings 26 divergng outwardly ing the greater portion of its mass located near its alOng the base plate and Substantially perpenaxis of rotation and having reinforcing ribs so dieular thereto. The Side Plates 44 are Cut aWay,

30 constructed and arranged as to provide adequate aS ShOWn at 45 and 48, t0 lighten the Structure, 30 stiffness to the member and to transmit the forces leaving large ribbed portions 50 and 52 extending caused by applied loads to the more massive poralOng the t0n and hase platea The Side Plates tions of the same, adjacent to the bearings are solid in order to These and other features of the invention are provide adequate Strength near the Spindle Where disclosed in the following detailed specification maximum bending moment takes Dlae- The 35 and in` the accompanying drawings and will be Central and side plates gradually decrease in ponted out in the claims, height, outwardly of the-spindlaand support the In the drawings: top plate 39, The top plate 39 is inclined down- Fig. 1 is a view in side elevation of a portion Wardly and OutWaIdly from the upper bearing 25 4o of a clicking machine embodying my invention; and is split at its lower end to form forked por- 40 Fig. 2 is a plan view of the body portion of the tions 54 which curve downwardly and outwardly presser member; along the base plate to provide clearance for a Fig. 3 is a perspective view partly in cross sechandle 55 operatively connected to a clutch contion of the body portion of the presser member; trOl mechanism, nOt ShOWn- The t0n `lelate 39 iS and in the form of an arch with the thickness of the 45 Figs. 4, 5, 6 and '7 are cross sectional views plate at a maximum near the spindle and detaken along lines IV-IV, V-V, VI-VI and creasing gradually toward its lower end to a VII-VII, respectively, of Fig. 2. thickness substantially as thin as can be cast. 'As shown in Fig. 1, the invention is embodied This construction is such that a load applied in a clicking machine having a frame Ill in which against the bottom of the base plate at the end 50 is mounted a spindle l2 arranged for rotation o thereof will be transmitted directly through the about its axis and for movement 'in a heighttop plate to the spindle. wise direction, there being a presser member or The base plate 28 has its upper face beveled arm I4 secured to the spindle and arranged for outwardly as at 55 from the side plates 44 to its movement laterally across the surface of the cutperipheral edges. The central portions of the 55 upper surface of the base plate are dished, as shown at 58, Figs. 4, 5, and 6, between each of the side plates 44 and the central plate 3l). This provides an inverted arch construction which contributes materially to the lateral stiffness of the base plate. rIhe base plate is further strengthened by means of a removable striking plate 6D which is secured to the under side of the base plate by means of bolts 62. Preferably this striking plate and the bolts are of the same composition as the body portion of the arm which thus contributes to lightness andrat the same time will form a comparatively soft striking face which wil?L not dull the edges ofv double-edged dies used in the machine, and which can readily be replaced when it becomes worn.

In order further to reinforce the body portion of the arm I have provided ribs 64 extending at a sharp inclination to the' central plate and outwardly to the side plates. I have provided similar ribs 56 extending from the centralplate to the side platesiand upwardly along the latter and then along the top plate back to the central plate. These ribs serve tostiifen the base plate and to prevent the top plate from buckling. They further serve to transmit pressure due to a load applied to the striking plate toward the central portion of the arm and in a rearward directionpthereby to cause the forces to traverse a path along the central plate toward the spindle where the greater portion of the mass of the arm is concentrated. There are additional ribs 68 extending from the central plate along the top plate and toward the side plates at points where the side plates are solid, there being vertical ribs 'Hi extending along the side plates for a further reinforcement. Ribs 72 extend along the base plate from the central plate 3E! to bosses M in which the U-'bolts 2Q are received. The top plate 39 is further stiffened near the bearing 26 by ribs "i6, I

In the operation of the machine, `the, arm il! is swung in the usual manner about the axis of rotation of the spindle l2 into position over a die located on sheetmaterial carried by the block i6 and is then depressed to force the die through theimaterial t produce a blank. The construction above described is such that a Vload applied to the under side lof the striking plate G0 will be transmitted through the more massive central and inner portions of the arm to the spindle with the result that the arm has great strength and rigidity in comparison to its weight. Furthermore, because of its light; construction and because of' the fact that the greater part of the mass of the arm is concentrated near the axis of rotation, the arm can `be swungv laterally across the block with little effort, and `can be readily stopped in operative position overthe work.

Having described my invention, what I-claim as new and desire to secure by Letters Patent of the United States is: f

l. A hollow unitary presser member for a clicking machine comprisinga shell cast in one piece and having a. base portion, a top wall extending upwardly from the base portion, yside walls extending between thebase portion and the top wall, and a central reinforcing wall connecting the base portion and the top wall and partitioning the presser member longitudinally.

2. A hollow unitary presser member for a clicking machine comprising a shell cast in one piece and having a base portion, a top wall extending at an inclination to the base portion, side walls extending between the base portion and they top Wall, a central reinforcing wall connecting the base portion 4and the top wall and partitioning the presser member longitudinally, and reinforc-l ing ribs upon opposite sides of the central wall and extending along the inner faces of the top and side walls and the base portion.-

3. A presser member for a clicking machine comprising a hollow shell having a base portion, a top .wall extending at an inclination to the base portion, central and side walls extending between the top wall and the base portion, and

reinforcing ribs extending aboutl the inner faces of the top and side walls andthe base portion at an inclination to the central wall for transvmitting forces applied tothe base portion in directions rearwardly of the central wall.k

4. A presser member for a clicking machine comprising a hollow casting having a bearing portion, a base portion, a top wall extending outwardly from the bearing portion to the `outer part of the base portion, central and side walls joining the top wall and the base portion, and reinforcing ribsextending at inclinations to each other on opposite sides of the central wall and connecting the central wall to the side walls.

5. A presser member for a clicking machine comprising a hollow casting having a` bearing the base portion, and ribs extending along the base portion at inclinations to the upstanding wall for transmitting forces applied to the base portion rearwardly toward the bearing portion.

7. A presser member for a clicking machine comprising a casting having a bearing'portion, a base portion extending outwardly from the bearing portion, and an arched wall extending outwardly from the bearing-portion of the outer end of the base portion for transmitting forces applied to the base portion toward the bearing portion, the arched wall being of decreasing thickness outwardly of the bearing portion.

8. A presser member for clicking machines comprising an integral casting having abase plate, a top plate extending at an inclination to the base plate, central and top plates extending between the top plate and the base plate, and reinforcing ribs extending along the top plate, a side plate and the base plate and lying'substantially in planes extending at an inclination to the central plate for transmitting in directions rearwardly of the central plate forces applied to the base plate. k

9. A presser member for clicking machines comprising an integral casting having a base plate, a top plate inclined relatively to the base plate, central and side plates extending between the base plate and the top plate, and reinforcingy ribs extending from the central plate along the top plate, one of theside plates and the bottom plate at an `inclination to the central plate.

MIETH MAEsEa.

CERTIFICATE OF CORRECTION. Patent No. 2,181,905. December 5, 1959.

MIETH MAESER.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 2, second column, line M9, claim 7, for "portion of" read --portion to; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

signed and Sealed this 10th day of september, A. D. 19M).

. Leslie Frazer, (Seal) Acting Conmissioner of Patents,

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