DE1060745B - Machine for dressing the heel cap of listed shoes - Google Patents

Description

The invention relates to a machine for dressing the heel counter of listed footwear, with which the heel seat can be made sharp and clean, which is known to be quick Attaching the heel to the shoe, especially the women's shoe, and a good fit are essential is.

There are already numerous devices and methods for forming the heel cap on shoe uppers has been proposed. Known machines work either with static or dynamic pressure.

The invention relates to a machine of the latter type and works with a mechanical one moving hammer. The previously known hammer machines for dressing the heel cap work with knocking drums, with shifting hammers or with a combination of both institutions. The rotating knocking rollers work in such a way that the leather is below the heel edge the insole is pulled. In contrast, the shifting hammers work in the same direction a compression molding.

It is already generally known in machines of this type to place the workpiece carrier in relation to the tool either to move it or to make a rotation in relation to it, so automatically all points of the heel edge can be edited. However, it was not the case with the known machines possible to consider the entire heel counter in perpendicular to the edge of the heel counter Automatically edit lying planes running curvature.

The aim of the invention is. to create a device with which a mechanically moved hammer is guided over the entire space of the heel cap in such a way that each part of the heel cap is applied point by point one after the other.

For this purpose has a machine for dressing the heel counter of lace-up shoes According to the invention, the combination of the following means, known per se, for applying point by point the entire area of the heel cap: a last support that can be rotated about an axis fixed to the housing to hold the last with a heel axis running parallel to the axis fixed to the housing, a rotatable and axially displaceable clamping head and clamping devices aligned with the strip carrier for pressing a clamping jaw formed according to the heel base surface against the heel seat and a Side hammer, and the side hammer can be pivoted across the heel counter.

This training ensures that the leather is locally smoothed point by point under the action of the hammering tool, creating a machine
for dressing the heel counter
of listed footwear

Applicant:
Alessandro Malverdi, Bologna (Italy)

Representative: Dipl.-Ing. C. Wallach, patent attorney,
Munich 2, Kaufingerstr. 8th

Claimed priority:
Italy 22 July 1954

Alessandro Malverdi, Bologna (Italy),
has been named as the inventor

exact matching of the heel cap leather to the heel is effected. The processing creates a smooth transition to the heel part, creating a "seat" for the heel, so to speak.

The side hammer, which can be pivoted transversely to the heel cap, can expediently be arranged in this way be that it is displaceable along the heel cap next to the common axis fixed to the housing. This achieves a guide through which the heel cap is scanned in a grid-like manner, with the hammer until it hits the corresponding point of the heel cap on the heel axis executes directed movement, so that perfect truing of the entire heel counter is guaranteed will.

Compressed air or compressed oil can be provided as the operating means of the side hammer. For lateral swiveling of the side hammer can a hammer carrier by means of a driven eccentric pin around a die The axis fixed to the housing does not intersect and is arranged in a plane perpendicular to it be pivotable.

In order to achieve that the strip carrier is alternately twisted and laterally displaced, according to one Another useful embodiment of the invention, a changeover clutch is provided, which consists of a Coupling bolt and a switching lever that can be controlled by stops.

Further advantages and details of the invention emerge from the description of an embodiment

909 559/47

Claims (2)

for example on the basis of the drawing. In the drawing, Fig. 1 shows a section along the line I-I according to Fig. 2, Fig. 2 shows a section along the line II-II according to Fig. 1, and Fig. 3 shows a schematic representation of different positions of the hammer in relation to the heel counter. Fig. 4 the electrical circuit diagram of the machine. A motor 1 (Fig. 1) is switched on and off by a control device described later and shown in Fig. 4. A motor disk 2 carries an eccentrically arranged pin 3 which, when the motor is running, sets a rocking lever 4 mounted on a shaft 7 in pendulum movements. Beyond its bearing on the shaft 7, the rocker arm is divided into two arms 5, which together have an automatic, e.g. B. Wear jackhammer 6. This oscillates in planes which are perpendicular to the heel cap held by a pressing piece 32, in such a way that the edge of the cap lying on the pressing piece is particularly sharp. A pulley 8 and thus a hub 10 connected to the same by a shaft 9 is driven by the motor pulley 2 via drive belts. A freely rotating disk 12 is arranged between the disk 8 and the hub 10. This has a coupling hole into which the coupling bolt 11 fitted in the NabelO can engage and thereby couple the hub 10 to the disk 12. The hub 10 also carries a double lever 13 swinging around a pin 14, the lever arm of which, which is directed into the interior of the hub, carries a ball at its end, which is located between two springs 15 arranged inside the coupling pin 11. The hub 10 takes the disk 12 with it until the outer end of the lever 13 hits an inclined coupling surface 16. The coupling bolt 11 now jumps with its other end into a coupling hole of the hub 17 carried by a shaft 28, whereby the shaft 28 and the shoe upper 26 pressed onto the latter are rotated until the lever 13 hits the oppositely inclined coupling surface 16b, which is offset from the coupling surface 16 by approximately 180 °. The hub 17, the shaft 28 and the shoe upper 26, which is pressed onto the latter, now come to a standstill, and the disk 12 is coupled to the hub 10 again. Thus, there is a constant change in the rotational movements of the disks 12 and 17. The pulley 12 is designed as a V-belt pulley, on which a slide 18, which has a profile that engages in the pulley, rests under pressure. The slide 18 (FIG. 2) is pressed against the disk 12 by a roller 19, the axis of which is mounted in an eye of a lever 20 swinging around a bolt 22 and which is under the pressure of a spring 21. As soon as the disk 12 rotates, the carriage 18 is pulled along with it. A rope 23 is fastened to the slide 18 and leads via rollers 24 and 25 to the arms 5 which are rigidly connected to one another by the shaft 7 and which jointly carry the automatic hammer 6. By pulling the carriage 18, the lever 5 and the hammer 6, which are rigidly connected by the shaft 17, are shifted laterally, so that the hammer, which oscillates with a rocking lever about the axis 70, processes the surface in all points. As soon as the side surface of the heel cap of the shoe upper26 pressed in a known manner by means of a hand spindle 33 running in an arm 31 with the interposition of a shaped piece 32 or a last on the grooved end27 of the shaft28 is completely machined, the coupling lever 13 hits the coupling stop 16, uncouples the disk 12 and couples the hub 17. This rotates the shaft 28 and with it the shoe about its axis 280, and the rear round part of the heel cap is passed in front of the hammer swinging up and down and processed until the lever 13 encounters the coupling surface 16 b. The rotary movement of the heel cap is thereby switched off and the lateral movement of the hammer is switched on again. In position E of the hammer (Fig. 3), the motor 1 is switched on, whereby the hammer is set in an upward and downward swinging movement and at the same time in a hammering movement. While the disc 12 is rotated through 90 °, the hammer is pulled sideways along the heel cap until position i7 is reached. In this position, the clutch is switched over, the hammer swings up and down in a fixed plane, whereas the heel cap 26 rotates through 180 ° in accordance with the coupled disk 17. After the 180 ° has passed, the coupling is changed again, so that the disk 17 comes to a standstill and the disk 12 starts rotating. After passing through an angle of 90 °, the position G of the hammer 6 relative to the heel cap 26 is reached and the work process is thus ended. At this moment the machine is automatically shut down. The worker then releases the pressure roller 19 from the carriage 18 by means of the lever 20, and the carriage 18 springs back into its starting position under the influence of the spring 29. Likewise, the arms 5 and thus also the hammer 6 are returned to their starting position by a spring 30 arranged on the shaft 7. The worker switches on the three-pole switch and the auxiliary switch ^ coupled to the latter at the given moment by pressing button P using contactor T (Fig. 4). As soon as the carriage 18 (Fig. 1 and 2) has reached its end position, which corresponds to the position G of the hammer 6 to the heel cap 26 (Fig. 3), the carriage switches off the switch R in a known manner and thereby interrupts the contactor circuit, whereby the motor is switched off and comes to a standstill. Patent claims: 1. A machine for dressing the heel cap of listed footwear, characterized by the combination of the following, known means for point-wise loading of the entire spatial area of the heel cap: a last support (27) rotatable about an axis (280) fixed to the housing for holding the last (26) with a heel axis running parallel to the axis (280) fixed to the housing, a rotatable and axially displaceable clamping head aligned with the strip carrier (27) together with clamping means for pressing a clamping jaw (32) shaped according to the heel base surface against the heel seat and a side hammer (6), as well as, that the side hammer (6) can be pivoted transversely to the heel cap (Fig. 1 to 3). 2. Machine according to claim 1, characterized in that the side hammer (6) along the heel cap laterally next to the common axis (280) is displaceable (Fig. 3).