US1748671A - Machine for sticking the soles of shoes - Google Patents

Description

Feb. 25, 1930. A. DEMNITZ 1,748,671

MACHINE FOR STICKING THE SOLES 0F SHOES Filed July 31, 1928 2 Sheets-Sheet 2 J72 veal-0r JAE/5187" DE M IWTZ Patented Feb. 25, 1930 PATENT OFFICE ALBERT DEMNITZ, OF DRESDEN-LAUBEGAST, GERMANY MACHINE FOR STICKING THE SOLES OF SHOES Application filed July 31, 1928, Serial No. 296,612, and in Germany December 16, 1926.

My invention relates to improvements in shoe manufacturing machines, and has particular reference to means for mountingand moving a plurality of presses used in sticking soles to the uppers of shoes so as to bring the presses successively into an operative position,.,with a view to conserving space and enabling a maximum amount of work to be accomplished within a minimum amount of time and with the expenditure of a minimum amount of efi'ort on the part of the attendant of the presses.

My invention is illustrated by way of example in the accompanying drawings in which:

Fig. 1 is a front elevation of the machine;

Fig. 2, a vertical central section of Fig. 1; Fig. 3, an elevation illustrating a modification of the structure shown in Figs. 1 and 2;

Fig. 4, a detail sectional view illustrating another modification of the structure shown in Figs. 1 and 2; and i Fig. 5, an elevation illustrating a further modification of the structure shown in Figs.

1 and 2.

At the upper end of the pillar or upright 1 a horizontall located pivot 2 is arranged, u on which t 10 hub 3 of the ring-shaped carr1er 4 is rotatably mounted. ()n the inner circumferential face of this carrier the separate presses 5, 5 are arranged. For the purpose of effecting a saving in weight the carrier 4 may be built up of angle-irons connected with each other and each having one of its flanges extended outward in radial direction (Fig. 2). The angle-iron adjacent to the illar or upright 1 is connected Wltll the-huh 3 by means of braces or spokes 6. The pivot 2 is provided with a passage 8 leading to the head of the pillar and th ls passage is connected by means of a stop-valve 10 with an accumulator for compressed air not shown) located preferabl in the interior of the hollow cast-iron bory of the pillar 1.

4 Each of the pressin devices is connected with a distributor 7 by metal ipe 9. The passage 8 for the compressed air is connected by a pipe 11 with the air-inlet opening 12 of the cylinder 13' controlling the pneumatic device for driving means of a hose or the press-carrier. 14 is the air outlet-openin g of the cylinder 13. Between these two openings a hose or pipe 15 is connected with the cylinder 13' which hose leads to the working cylinder 16. In the cylinder 13 is arranged a piston rod 17, carrying two pistons 18 and 19 adapted to close and open the inlet and outlet openings .12 and 14 respectively. The piston rod 17 has an extension 20, which extends outwardly through the lower cylinder-cover. A pressure-spring 21 is arranged between this cylinder-cover and the lower piston 19 around the extension 20 of the piston-rod 17 which is connected by a joint 22 with a foot lever 23, journaled at 24 in the pillar 1. 'Pivotally connected with this footlever 23 is one end of a link 25, the other end of which is articulated to one arm of a bellcrank lever 26. The other arm of this hellcrank lever is connected with a locking member consisting of a pin 27, which is adapted to engage with one of a series of holes 28, 28 provided at. the lateral face of the ringshaped carrier 4.

The interior of the working cylinder 16 for ei'l'ecting the step by step movement of the press carrier 4: contains a piston 29, the rod 30 of which is pivotally connected with the end of one arm'32 of a two armed lever jonrnaled in the pillar 1. Between the piston 29 and one cover of the cylinder 16 a pressure-spring 21 is arranged around the piston-rod 30. The other arm 34 of the twoarmed lever is adapted to enter the path of pawls 35, 35 pivotally arranged on a ring 36, secured to the spokes (i, (i of the carrier 4.

In machines with table-shaped carriers as shown in Fig. 3 the step by step movement of the carrier may he eil'ected in substantially the same manner, with the dill'erence only, that the working cylinder 16 is arranged in a somewhat other position than in the machine with a vertically arranged car rier. In the example of Fig. 3 the cylinder 16 is mounted on the pillar which sup orts the table 4-0 and the'piston rod 30 of sa1d cylinder acts upon a hell-crank lever 37 journaled at 38, the free end of which is adapted to enter the path of rockin pawls 39, 39 which are securcdto the tab e 40. Instead of the controlling cylinder 13 another controlling device, for instance a three-way cock 31 may be'provided (Fig. 4).

The step by step movement of the press 5 carrier may also be obtained in another manner, for instance by means of a control mechanism as shown in Fig. 5.

This mechanism is similar to that shown in Figs. 1-3 only with the difl'erence, that the piston rod 30 is articulated to the free end of a control lever 42, which has pivoted connection at 43 with a part 44, similar to a crane trolley. The hub portion 45 of the lever 42 is provided with a pinching face which may engage with the outer surface of the rim 46, on the inner face of which two rollers 47 47 carried by the part 44 are arranged to roll. The rim 46 is secured preferably to the spokes 6, 6 of the press carrier.

The operation of the machine is as follows:

By pressing down the foot-lever 23 the locking pin 27 is released from the hole 28 of the press carrier, so that this latter may be rotated. Downward movement of said foot 25 lever operates through the rod 20 to eflect downward movement of the pistons 18-19 1 until the former has closed the exhaust opening 14 and the latter has uncovered the inlet opening 12, thereby placing the source of .30 compressed air in communication with the cylinder 16. The working piston 29 therefore is moved forward against the action of the spring 31 and brings the two- armed lever 32, 34 from the position shown by dotted lines 35 into the full line position, in which the free end of the arm 34 is in engagement with one of the pawls 35. This pawl is rocked as the.

working piston 29 continues its movement, until it contacts with the cylindrical portion of the ring 36. At this moment the movement of the press carrier for one step begins and upon completion of movement of the car- .rier through an arc corresponding to the distance between an adjacent pair of the holes 28, the operator releases the foot lever 23, whereupon the pistons 18-19 are returned to normal position by the spring 21, restoring the original status of the apparatus with the carrier advanced one step and locked against rotation by engagement of the pin 27 in a hole 28. At the same time also the distributing device 7 rigidly connected with the hub 3 has turned for the same angle, so that the compressed air is now led through the stop valve 10 and the passage 8 to the pressing pouch of the next following press 5 and becomes there operative.

This device for moving the carrier by steps may also be employed in machines with tableshaped carriers, as shown in Fig. 3.

In the modified device shown in Fig. 5 the piston rod 30 of the working cylinder 16 shifts in the proper moment the lever 42, so that the cam face of the hub 45 is pressed toi wards the outer surface of the rim 46 and the latter and therefore also the whole carrier is caused to participate in the movement ofthe working piston. When this movement is finished the piston 30 of the working cylinder 16 returns by the action of its spring to its initial position and takes along with it also the controlling lever 42.

This construction differs from that shown in-Figs. 1-3, that it cannot be employed for machines with table-shaped carriers.

What I claim is:

1. In a machine for sticking the soles of footgear, the combination of a ring-shaped carrier, a hub rotatably mounted on a stationary pivot, spokes connecting said hub with the carrier, a plurality of flui operated pressing devices projecting towards the centre of said carrier, a stationary working cylinder with a piston therein, adapted to be acted upon by the same fluid as the pressing devices and adapted to rotate said carrier for one step, and means for governing the feeding and discharging of said working fluid to and from the said pressing devices for operating the same.

2. In a machine for sticking the soles of footgear, the combination of a rotatable carrier, a plurality of fluid operated pressing devices, projecting towards the centre of said carrier, a stationary working cylinder with a piston therein, a plurality of pawls, shiftably mounted on said carrier, a lever connected with said piston adapted to be rocked by the operation of said piston for rotating the carrier for one step, means for controlling the feeding and discharging of a working fluid to and from said stationary workin cylinder and means for controlling the feedlng of the working fluid to the pressing devices.

3. In a machine for sticking the soles of footgear, the combination of a rotatable carrier, a plurality of fluid operated pressing devices projecting towards the centre of said carrier, a stationar working cylinder with a piston therein, a ever connected with said piston adapted to be rockedby the operation of said piston for rotatin said carrier for one step, a controlling cylinder having two openings therein for the inlet and outlet of a working fluid, two pistons arrangedon a common piston rod, and controlling said inlet and outlet openings by their movement, the. outlet opening in said cylinder having an op erative connection with said ressing devices, and means for actuating said piston.

4. In amachine for sticking the soles of footgear, the combination of a rotatable carrier, a plurality of fluid operated pressing devices projecting towards the centre of said carrier, a stationary working cylinder with a piston therein, a lever connected with said piston and adapted to rotate said carrier fcr one step on the operation of said piston, a device for controllin the feeding of a working fluid tc said working cylinder and from the carrier, a stationary working cylinder with devices projecting towards the centre of said.

a piston therein, a controlling device for the feeding and discharging of a working fluid to said working cylinder, and to one of said pressing devices, means for operating said controldevice, and means operated by the piston of said working cylinder to lock the carrier against rotation.

6. In a machine for sticking the soles of footgcar, the combination of a rotatable car rier, a plurality of fluid operated pressing devices projecting towards the centre of said carrier, a stationary working cylinder with a piston therein, a controlling device for the feeding and discharging of a'working fluid to said working cylinder and to one of said pressing devices, a foot lever, for actuating said controllingdevice, said carrier having circumferentially spaced holes therein, a pin projectable into a selected one of said holes to hold the carrier against rotation, and a bellcrank connection between said pin and said piston. 1

7 In a machine for sticking the soles of footgear, the combination of a rotatable carrier, a plurality of fluid operated pressing carrier, a stationary working cylinder, with a piston movable therein, means 0 erated by said piston for locking said carrier against rotation, a controlling cylinder having two openings therein for the inlet and the outlet of a working fluid, two pistons arranged on a common piston rod and controlling said inlet and outlet openings by their movement, means connected to said piston rod for actuating said control pistons, and a fluid supply connection between said control cylinder and one of said pressin devices.

8. In a machine for stic 'ng the soles of footgear, the combination of a rotatable carrier, a plurality of fluid operated pressin devices, projecting towards the centre of said carrier, a stationary pivot, forming the axis of said carrier, said pivot having a passa e therein connected with a source of a'wor ing fluid, a plurality of conduits in the hub of said carrier, communicating with said inder for fixing the said carrier in its different positions during the operation of the pressing devices.

9. In a machine for sticking the soles of footgear, the combination of a rotatable carrier, a plurality of fluid operated pressing devices, projecting towards the centre of said carrier, a working cylinder for rotating said carrier, a piston in said cylinder, a. lever connected to said piston, a cam surface on said lever, a clamping member, articulated to said lever, a rim secured to said carrier and adapted to be acted upon by said clamping member, a controlling device-for the feeding and discharging of a working fluid to said working cylinder and means for controlling the feeding of the working fluid to the pressing devices.

10. In a machine for sticking the soles of footgear,the combination of a rotatable carrier, a plurality of fluid operated pressing devices carried thereby, fluid operated means for rotating said carrier step-by-step and for signature.

ALBERT DEMNITZ.

passage one after the other by rotation of said carrier, conduits or pipes connecting said holes for feeding a working fluid to the said pressing devices, a stationary working cylinder with a piston thereinadapted' to be acted upon by the same fluid as the pressing devices, a controlling device for the feeding and discharging of the workin fluid to the said worln'ng cylinder, and a loc 'n member operable by the piston in said wor 'ng cyl-

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