US2150915A - Sole press - Google Patents

Description

March 21, 1939. 5. J; FINN 2,150,915

SOLE PRESS I Filed March 11, 1938 3 Sheets-Sheet 1 March 21, 1939.

S. J. FINN SOLE PRESS Filed March 11, 1958 5 Sheets-Sheet 2 .S. J. FINN SOLE PRESS March 21, 1939.

3 Sheets-Sheet 3 Filed March 11, 1958 m w N Patented Mar. 21, 1939 2,150,915

UNITED- STATES PATENT OFFICE SOLE PRESS Sidney J. Finn, Beverly, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. .L, a corporation of New Jersey Application March 11, 1938, Serial No. 195,355

'7 Claims. (Cl. 12-37) This invention relates to machines for cementnecting the treadle from the mechanism by attaching soles to shoes and is illustrated as which the three-position valve is moved into inembodied in a machine of the type disclosed in take position and means controlled by move- Letters Patent of the United States No. 2,047,185, ment of the swinging frame is provided for again granted July 14, 1936, upon application of Ballard connecting the treadle and the valve-moving 5 et al. mechanism when the frame is swung into oper- In machines of this type an intermittently roative position. As illustrated, a latch is protating turret is provided with a series of pads vided between two parts of the mechanism for upon which shoes and soles are placed in pocommunicating movement of the treadle to the g sition relatively to each other and pressure apthree-position valve, which latch is held in inplied to the shoes. For this purpose there is operative position when the pressure-applying provided adjacent to each pad a frame pivoted frame is swung rearwardly into its inoperative below the pad and carrying a rest to engage the position and is allowed, by movement of the frame toe of the shoe and an abutment to engage the intoposition over the shoe, to assume its op- ,rs last, swinging movement of the frame about its erative position to connect the treadle with the axis serving to carry the abutments into and out three-position valve so that the valve will be of position over the shoe. After swinging the opened when the treadle is depressed.

frame into upright position the operator de- In the drawings,

presses a treadle which causes actuation of the Fig. 1 is a fragmentary fTOIlt e at o of a rest and abutment by fluid pressure means to machine embodying the present invention; 20

apply pressure to the shoe and sole. In the ma- Fig. 2 is a side elevation of the uppe part chine of the prior patent the treadle may be of the machine showing one of the pads and operated and the abutments actuated whether pressure-applying devices;

or not the frame has been swung into operative Fig. 3 is a perspective detail of mechanism position over a shoe. Accidental or unintenshown in Fig. 1; tional actuation of the abutments when they are F g. 4 is a view similar to Fig. 3 sho the in inoperative position is likely to cause breakparts in a different posit 0n; and age or injury to the machine, especially when Fig. 5 is a rear View in elevation of some of equipped with welt holddown apparatus such, for the parts shown in Fig. 1. an example, as that illustrated in Letters Patent of In order that the p t nvention for ren- 0 the United States No. 2,074,834, granted March dering the pressure-applying mechanism inop- 23, 1937, upon application of S. J. Finn. erative when the pressure-applying abutments Objects of this invention are to provide means are not over the p y e clearly understood, for preventing operation of the shoe-engaging the coope Parts Of t p or c struction means, viz., the rest and abutment, unless and will be briefly explained, a more complete dees until the frame carrying these abutments is scription be available in the patent t eswung into operative position. In the machine ferred to above. of the Ballard et a1. patent, each of the fluid- The machine comprises a column p pressure-operating means for applying pressure which is mounted a turret l2 upon which a. series to the shoe is provided with a three-position of D d hOXes, One Of Which is own at M gvalve the handle of which, when moved to the is carriedn t e pad be M is a y eldin right, opens the valve to admit fluid pressure to the pa '5 n which a shoe A mounted on a last pressure-applying mechanism. The machine is L- is p ce A swing frame comprising a pair also equipped with a system in which fluid is of uprights I6, I 8 is pivoted on a horizontal shaft circulated continuously including a bypass hav- 28' located below the pad l4 and carries an abut- 4'6 ing a pressure-inducing valve closing of which e t 22 f engaging t e Cone of the last and causes pressure to be furnished to that one of a toe rest 24 which, when the frame I 6, I8 is the pressure-applying mechanisms whose threeinv p ight posit n s shown in e 0D- posltion valve is in intake position. Depression Grated to pp p u o t e shoe A located of the treadle above referred to moves the threeo the D y P Of levers 23 p voted "50 position valve located at the operating station on a shaft 30 mounted in the uprights l6, l8. into intake position and closes the pressure-in- The real" ends Of the levers 28 are engaged ducing valve, whereupon the pressure-applying by an equalizing lever 32 pivoted on a pin 34 mechanism is operated. In accordance with the carried by ears 36 fixed to the top of the piston present invention, means is provided for dl'scon- 38 arranged for vertical movement in a cyl- 55 inder 48. Fluid, for example oil under pressure, is admitted to the cylinder 48 through a pipe 42, and the flow of pressure fluid to the cylinder is controlled by a three-position valve 44 (Fig. l) which can be operated by a handle 46 or by a link 48. The link 48 is connected to an upright arm 58 of a three-armed lever pivoted at 52 upon the turret l2, the other arms of the lever being designated by 54 and 56. The above-described mechanism is duplicated for each of the eight pads with which the machine is usually provided and, when at the operating station, the above-described mechanism cooperates with the following mechanism which is located only at the operating station.

A pressure control treadle 68 (Fig. 1) when depressed pulls downwardly on a rod 62 and causes 'a pressure-inducing valve 64 to be. closed. This normally open valve is in a bypass between a pipe 65 and a pipe 68 through which oil is circulated by a continuously rotated pump P and, when the valve 64 is closed, the pump draws oil from a tank 18 through a pipe 12 and forces it through a pipe I4 leading to the turret whence it is conducted to each of the three-position valves 44. Depression of the treadle 60 also lowers a head I6 away from a roll I8 on the arm 54 and at the same time operates a lever 88 pivoted thereto at 8! and having a stationary pivot at 82. The lefthand arm 83 of the lever 88, in the prior construction, carries a roll 84, which roll when moved upwardly by depression of the treadle 68 engages-the arm 56 and rocks the three-armed lever 58, 54, 5.6 clockwise to move the three-position valve into intake position whereby pressure fluid is supplied to the pipe 42 to act on the piston 38 and apply pressure to the shoe.

It will now be seen that, if the roll 84 is rendered inoperative to move the arm 56 when the treadle is depressed, the three-position valve will not be opened and pressure cannot be applied to the abutments at the operating station even if the treadle 68 is depressed and the pressure-inducing valve 64 closed. Accordingly the present invention provides means for rendering the roll 84 operative or inoperative to move the arm 56, which mechanism is controlled by the position of the swing frame I6, I8 in such a way that when the swing frame is swung rearwardly to locate the abutments out of position over the shoe the roll 84 is rendered inoperative, and when the swing frame is in its upright position the roll is rendered operative. To this end the mechanism illustrated in Figs. 3, 4 and 5 is provided.

7 It will be seen (Fig. 3) that the left-hand arm 83 of the lever 88 curves down and up again. The rear face of the arm 83 has a rectangular groove 88 formed therein in which a latch 98 is pivoted on a pin 92. A spring 94 (Fig. 4) engages the latch 98 above its pivot 92 to urge it rearwardly. The upper end of the latch 98 is cut away to form a latch face 96 which may engage and support the left-hand end of a lever 98 pivoted at I88 between ears I82 formed on the hub portion of the lever 80, '83. It will be seen that in the present construction the roll 84 is mounted by a bolt I83 on the lever 98 instead of on the lever arm 83 as heretofore. A tension spring I84 (Fig. 5) is connected at one end to a pin I 86 on the right-hand arm I88 of the lever 98 and at the other end to a pin I Jon the arm I I2 secured by a set-screw M4 to the pivot shaft 82 of the lever 88, 83. The spring urges the arm I08 against a stop-screw I I6 threaded through a lug II8 on the lever 88 so that, when the lever 98, I84 is positively held against the stop-screw II6 by the engagement of the latch face 96 under the arm 98, this lever becomes an operative part of the lever 88, 83 and therefore the roll 84 will operate as usual upon depression of the treadle to swing the arm 58 clockwise and, through the link 48, move the handle of the three-position valve 44 to inlet position. If the latch 98 is swung forwardly to disengage its latch face 96 from the lever 98, the lever 98,

I64 will cease to be operated by movement of the lever 88, 83 and hence the roll 84 will be inoperative to open the valve 44. This inoperative condition should obtain when the arm I6, I8 is swung rearwardly to permit removal of a shoe and the placing of another shoe upon the pad. For this purpose the shaft 28 is secured to the swing frame I6, I8 by a set-screw I22 and is provided with a rearwardly curved arm I28 secured to the shaft 28 by a set-screw I23. When the swing frame I6, I8 is upright, as in Fig. 3, the latch face 96 will be located under the lever 98 and the machine will operate as usual. When, however, the swing frame I6, I8 is swung rearwardly, as shown in Fig. 4, the arm I28 engages the arm I24 of a yoked lever pivoted at I26 to a stationary part I28 of the machine frame and having below the arm I24 another arm I38 carrying a stop-screw I32 which is in position to engage the latch 98 when the arm I24 is moved forwardly by the arm I28. Thus, when the swing frame I6, I8 is in its rearwardly swung inoperative position, the latch will be held out from under the lever 98 and hence the roll 84 rendered inoperative to operatethe valve 44. Reverse movement of the arm I24 is limited and adjusted by a stop-screw I34 threaded through a lug on the lever I24 in position to en-- gage the part I28 of the frame to which the lever is pivoted.

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

1. In a machine for pressing soles upon shoe bottoms, a yielding pad to receive the sole and shoe, pressure-applying means movable into and out of position relatively to the pad to apply pressure to the shoe, means for operating said pressure-applying means, and means controlled by the position of said pressure-applying means for determining whether or not the operating means shall actuate the pressure-applying means.

2. In a machine for applying pressure to shoe bottoms, the combination of a yielding pad to receive a lasted shoe and sole, means for engaging the shoe and last to apply pressure thereto, said means being mounted for movement into and out of position over the shoe, means for operating the shoe and last engaging means when over the shoe to apply pressure to the shoe, and means for rendering said operating means inoperative when the shoe and last engaging means are not over the shoe.

3. In a machine for applying pressure to shoe bottoms, the combination of a yielding pad to receive a lasted shoe and sole, means for engaging the shoe and last to apply pressure thereto, said means being movable from an operative position over the shoe to an inoperative position where they are not over the shoe, means for actuating said shoe and last engaging means when they are in position over the shoe, and means operated by movement of the shoe and last engaging means into their inoperativeposition to prevent actuation thereof.

4. In a machine for applying pressure to shoe bottoms, the combination of a pad to receive a shoe and sole, pressure-applying means movable into and out of position over a shoe on the pad, fluid-pressure-operated means for said pressureapplying means, a valve for controlling the application of pressure to said fiuid-pressure-operated means, a treadle connected to said valve for operating the valve to admit fluid under pressure to said fiuid-pressure-operated means, and means operated by movement of the pressure-applying means out of its operative position over the shoe to break the connection between the treadle and said valve to prevent operation thereof.

5. In a machine for pressing soles upon shoe bottoms, a yielding pad to receive a sole and shoe, pressure-applying means arranged to swing into and out of position relatively to the pad to apply pressure to the shoe, means for operating said pressure-applying means, and means controlled by the position in which the pressure-applying means is located for determining whether or not the operating means will act on the pressureapplying means.

6. In a machine for applying pressure to shoe bottoms, the combination of a yielding pad to receive a lasted shoe and sole, means for engaging the shoe and last to apply pressure thereto, said means being arranged for swinging movement about a center below the pad into and out of position over the shoe, means for operating the shoeand-last-engaging means when over the shoe to apply pressure to the shoe, and means operated by said swinging movement for rendering said operating means inoperative when the shoe-andlast-engaging means are not over the shoe.

'7. In a machine for applying pressure to shoe bottoms, the combination of a plurality of pressure-applying devices each comprising a pad, means for engaging the shoe and last arranged for movement into and out of position relatively to the shoe, 2. cylinder and piston for operating said engaging means to apply pressure to the shoe and a valve for controlling admission of fluid under pressure to said cylinder, means for presenting said pressure-applying devices successively at operating station, a treadle at the operating station, connections from said treadle to said valve for operating each valve in turn as it is presented at the operating station, a latch in said connections through which the treadle is connected to the valve, and an arm operated by movement of said shoe-engaging means acting to release the latch when said means is moved away from the shoe.

SIDNEY J. FINN.

Images