DE2351579A1 - MACHINE FOR RAISING THE UPPER EDGE OF A UNIT OF SHOE - Google Patents

Description

äitH DipS.-iiig. W. Scherrmann Dr.-Ing. R. Rüger

7300 Esslingen (Neckar), Fabrikstrasse 24, PO Box 348

October 11th «973 _{Te (efon}

ΡΛ 46 rüha ^{stutt9arl ί0711)} ™

Telegrams patent protection Esslingenneckar

International Shoe Machine Corporation , Simon & Ledge Streets, Nashua, New Hampshire 03060 / USA

Machine for roughening the shaft pinch edge a shoe unit

The invention relates to a machine for roughening the shaft pinch edge from a strip with egg shoe upper pulled over and insole arranged on the groin bottom, the lasting edge of the shoe unit against the. Insole is sheared and attached to this.

The invention is based on a state of the art as given by GB-PS 1,174,008. The machine known from this patent specification has a shoe unit carrier, on which a shoe unit can be placed, which has a last with a shoe upper pulled over it and a pinched lasting edge. The lasting edge is therefore roughened or shaved off in order to achieve better adhesion _to the outsole, which is then applied to the bottom of the shoe unit. The shoe unit carrier is guided in front of a roughening tool in such a way that the roughening tool can roughen the lasting edge. The roughening tool is used when roughening the tip

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and the heel part of the lasting edge is transferred into the correct roughened position in that it touches the shoe unit so far is depressed until fork prongs .on the shaft pinch edge rest on, with a forward movement towards the shoe unit until a feeler finger with the shoe unit in Intervention is coming. The forward-backward position of the roughening tool when roughening the side parts of the lasting edge is given by a cam control.

The aim of the invention is to improve this known machine so that the roughening tool during the Roughening of the side parts and the heel and / or toe part of the shaft pinch edge in each case by corresponding Cooperation of the feeler finger with the side of the shoe unit is in the correct position.

This is achieved in principle in that a driven slide is provided in the machine according to the invention is on which the roughening tool is movable in height with respect to the carriage and together with the carriage is arranged adjustable in the front-rear direction. The front of the slide is the feeler finger load-bearing bar adjustable in the fore-aft direction stored. The reciprocating piston motor driving the slide and the rod are coupled to one another in such a way that that with an adjustment of the rod with respect to a central position to the carriage of the carriage with respect to a Middle position is moved forward or backward accordingly. If the bar is in its middle position, the can Do not move the slide piston motor. The rod can be elastic by an actuating device are pushed forward from their middle position. This arrangement allows the finger to outline the side of the Follow the shoe unit when the shoe unit moves past the feeler finger, so that the roughening tool is exactly

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and is rapidly moved back and forth according to the outline of the side of the shoe unit, bringing it in the front-rear direction is always in the correct position with regard to the Zwick edge that has moved past it. To achieve, that the roughening tool during the placement of the shoe unit on the shoe unit carrier in a rear is not in a disruptive position, a mechanism is provided which initially ineffective the actuating device makes and thus prevents the piston engine from transferring the slide to a rear position.

In the known machine there is a risk that the roughening tool when it is lowered onto the shoe unit Groove digs into the part of the lasting edge with which it engages because the shoe unit after lowering the roughening tool stands still for a certain time. A second part of the invention therefore relates to an arrangement that is intended to ensure that the shaft pinching edge does not stand still until the roughening tool can dig a groove when lowering onto the pinch edge. This is achieved in that the roughening tool is mounted adjustable up and down in a tool holder. The tool holder is arranged on a shaft, which carries fork legs at the front. An elastic piston motor coupled with the roughening tool causes this Height adjustment of the roughening tool with respect to the tool holder and initially holds the roughening tool in the Tool holder in an upper position above the fork legs. After lowering the fork legs in The thrust piston motor moves the roughening tool into engagement with a part of the shaft pinch edge Pinch margin, wherein the shoe unit is moved so that the other parts of the pinch margin on the roughening tool be led by.

In the known machine, the fork legs are of this type

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arranged that they during their engagement with the Zwickrand and the passing of the Zwickrand are pivoted so that the flat underside of the fork legs parallel to the respective plane of the surface of the pinching edge parts which are in engagement with the fork legs runs. A connection between the fork legs and the roughening tool allows the roughening tool, a Pivoting movement in the same direction and to the same extent as the fork legs depending on the pivoting execute the fork legs so that the center plane of the roughening tool is perpendicular to the plane of the straight to be roughened Zwick edge areas runs. The invention is therefore still based on the task of an improved constructive solution for this pivoting of the roughening tool to be achieved depending on the pivoting movement of the fork legs.

For this purpose, the machine according to the invention has a housing on which the roughening tool is seated. The case is arranged on the shaft that carries the fork legs at the front, it can pivot around the axis of the shaft run that is generated by a reciprocating piston engine. A cam is arranged on the shaft, which with a first end part of a double-armed lever articulated to the housing cooperates, the second end part of which with the Valve spindle of a valve arranged on the housing cooperates, the valve spindle being elastic against the second lever arm is pressed. The valve and the reciprocating piston engine are coupled to one another so that at in a central position with respect to the housing of the valve standing valve spindle of the piston engine Housing does not move. The coupling between the valve and the piston engine results in one or the other other direction taking place movement of the valve spindle by the cam as a function of a rotary movement of the shaft around its axis; with which the piston engine in corresponding

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Place the housing and thus the roughening tool around the Axis of the shaft swivels.

The bottom of the toe area of the shoe unit is usually rounded and compared with the bottom of the rest of the shoe Part of the shoe unit relatively convex. Therefore, if the roughening tool in roughening the tip part of the lasting edge is in the same front position with respect to the feeler finger that it was in when roughening of the other parts of the lasting edge, the roughening tool will be too far inward from the outer contour Areas of the lasting margin roughened. The invention is therefore based on the further object of a To create roughening machine that remedies these difficulties.

The roughening tool is used for this on the new machine mounted on the housing adjustably in the front-rear direction, provision being made that the Roughening tool is normally in a front position with respect to the housing and thus the feeler finger. A An adjusting mechanism is provided which, when the tip part of the lasting edge moves past the roughening tool moves the roughening tool backwards with respect to the housing and thus with respect to the feeler finger.

In the known machine, an oval wheel is provided, to move the shoe unit carrier so that the shoe unit moves past the buffing tool is that the heel and toe portion of the shoe unit each rotate about 180 about a vertical axis, while the movement past the roughening tool, while the side parts of the lasting edge are essentially straight be guided past the roughening tool in the time between these rotational movements of the pinched edge. The dem The movement imparted to the shoe unit wearer by the oval wheel is independent of the length of the shoe

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unit always the same. The axis around which the shoe assembly rotates while the heel and The tip area of the lasting edge should ideally each go through the center of curvature of the heel and The tip area of the Zwick edge run. The invention is therefore based on the further object of an improvement to achieve the above-mentioned roughening machine, which ensures that a shoe unit when roughening the heel and toe area independently of the respective length of the shoe unit at least approximately exactly around the respective Center of curvature is rotated.

For this purpose, the mechanism for moving the pinched edge past the roughening tool in the new machine a turntable which is rotatably mounted about a vertical axis. On the turntable there is one between two Arranged end positions reciprocating slide that carries the shoe unit carrier. The machine is like that constructed that when the turntable is rotated by 180 ° about the vertical axis in one of the end positions stationary slide the heel or toe area of the lasting edge is guided past the roughening tool, while the carriage is moved between the rotary movements of the turntable from one end position to the other, whereby the side parts of the lasting edge are guided past the roughening tool. To achieve that the shoe unit with the turntable around a vertical axis running approximately through the respective center of curvature rotates, an adjusting mechanism is provided which adjusts the distance between the end positions of the carriage allows the turntable to be adjusted by an amount proportional to the length of the respective shoe unit.

The features of the new machine that are used to solve the above-mentioned tasks are each the subject of ancillary

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Claims and their associated subclaims.

In the drawing, an embodiment of the subject matter of the invention is shown. Show it:

1 shows a machine according to the invention in "a side view,

FIG. 2 shows the machine according to FIG. 1 in a corresponding view the line 2-2 of Fig. 1,

Fig. 3 shows the machine according to Fig. 1 in a perspective Front view,

FIG. 3A shows a tip stop of the machine according to FIG. 1 in a perspective partial representation,

Fig. 4 ″ the turntable and the carriage arranged on it the machine according to FIG. 1 in plan view,

FIG. 5 shows the arrangement according to FIG. 4, sectioned along the line 5-5 of FIG. 4 in a side view,

6 shows the arrangement according to FIG. 4 cut along the line 6 * 6 in FIG. 4 in a side view,

7 shows the carriage of the machine according to FIG. 1 arranged on the turntable in a view from below,

8 shows the arrangement according to FIG. 5 in section along the line 8-8 in FIG. 5 in a side view and in a detail,

9 shows the turntable and a base of the machine carrying it. According to FIG. 1 in a perspective exploded view,

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10 shows a locking member of the machine according to FIG. 1 for the rotationally fixed locking of the turntable in a perspective partial representation,

11 shows the machine according to FIG. 1 in a perspective view from behind,

FIG. 12 shows a part of the mounting of a hollow shaft of the machine according to FIG. 1 in a perspective view,

13 shows a mechanism for moving the roughening tool back and forth with respect to a housing in the machine according to Fig. 1 in a perspective view,.

14 shows a shaft, fork legs, a rod and the Feeler finger of the machine according to FIG. 1, each in a partial perspective view,

15 shows a shaft and fork legs of the machine according to FIG. 1 arranged thereon in a partial perspective view,

Fig. 16 the feeler finger, the fork legs and the Roughening tool of the machine according to FIG. 1 in a partial perspective view,

17 shows a mechanism for moving the roughening tool back and forth with respect to a housing in FIG Machine according to Fig. 1 in a perspective partial representation,

18 shows the mounting of the height-adjustable roughening tool in a tool holder on the machine according to Fig. 1 in a perspective view,

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19 shows a lever and an associated one on one Housing for adjusting the roughening tool mounted valve of the machine according to Fig. 1 in a side view,

20 shows an adjusting mechanism of the machine according to FIG. 1 for adjusting the roughening tool with respect to a Housing to the rear in a side view,

FIG. 21 shows the rod carrying the feeler finger with associated actuation device of the machine according to FIG. 1 in axial section in a side view,

22 shows a shoe unit used in the machine according to FIG. 1 in a side view,

22A shows the shoe unit according to FIG. 22 in a view along the line 22A-22A of FIG. 22;

23 shows the shoe unit according to FIG. 22 in a cross section showing the feeler finger, the fork legs and the roughening tool at the beginning of the roughening process for a machine cycle,

23A shows the arrangement according to FIG. 23 in a view along the line 23A-23A of FIG. 23,

24 shows the toe part of the shoe unit according to FIG. 22 in cross section and in a partial representation,

FIG. 25 shows the feeler, the rod and a holder of the feeler of the machine according to FIG. 1 in an exploded view perspective representation and

FIG. 26 shows the feeler finger according to FIG. 25, sectioned along the Line 26-26 of FIG. 25.

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The operator's position is on the right-hand side of the machine shown in FIG. To the operator Directions to be pointed (from left to right in Fig. 1) are called "forward" directions denotes, while directions pointing away from the operator (from right to left in FIG. 1) as "Backward" directions are named. The front of the machine is closest to the operator while the rear of the machine is furthest away from the operator.

The machine shown in FIGS. 1 and 3 has a shoe unit support part 10 and a tool part 12 on, which is arranged behind the shoe support part 1O is.

From Figs. 1,3,4 and 6 it can be seen that the shoe unit on location part 10 includes a base 14 on which a turntable 16 in a horizontal plane is rotatably mounted. On the turntable 16 is a back in a horizontal plane with respect to the turntable and movably guided carriage 18 in on the turntable attached guide rails 20 stored.

From FIGS. 1 and 3 it can be seen that a stand 22 with a bar pin 24 is rigidly attached to the slide is, which serves as a support for the shoe unit, with the last pin 24 from the stand 22 to protrudes above. A compressed air-actuated reciprocating piston motor 26 is rigidly attached to the stator 22, its piston rod is connected to a holder 30, which in turn by means of guide strips 32 on the carriage 18 in a horizontal plane as well as in one to the reciprocating movement of the carriage 18 with respect to the turntable 16 parallel direction is reciprocally mounted.

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On the holder 30, a compressed air operated piston engine 34 is attached, which is movable in the vertical direction Has piston rod 36, which carries a tip cushion 38 at the top, which acts as a support element for a Shoe unit is used. In addition, a compressed air-actuated piston engine 40 is arranged on the holder 30, the Piston rod 42 likewise protrudes upwards and is fastened to a strut 44 which is in the holder 30 is mounted adjustable in height. On the strut 44 is a rail 46 by means of a pin 48 on the top Last pin 24 to and from this pivotably mounted. The rail 46 carries a point stop rigidly attached thereto 50, which protrudes upward from the pin 48, in such a way that it is pivoted together with the rail 46. On the rail 46, a cam member 54 is attached below, which cooperates with a valve 56 on the Strut 44 sits.

As can be seen from FIGS. 4, 5, 7, a rack 58 is arranged on the underside of the carriage 18, which with a gear is in engagement, which is rotatably connected to a shaft 62, which from the base 14 after protrudes below and is rotatably mounted in a bearing bush 64 attached to the base 14. The bearing bush 64 protrudes from the base 14 upwards into the center of the turntable 16, the central axis of the bearing bush 64'die The axis of rotation is formed around which the turntable 16 can be rotated. below the base 14 is a gear 66 with the shaft 62 rotatably connected, while the shaft 62 below the gear 66 with an upper coupling part of a pneumatically operated clutch 68 is connected and is otherwise through the lower coupling part of the coupling extends therethrough.

A toothed wheel 70 is fastened to the turntable 16 and is connected to a toothed wheel 72 that is seated non-rotatably on a shaft 74 is engaged. The shaft 74 rotatably mounted in the base 14 protrudes from the base 14 downward; she is with the upper coupling part of a pneumatically operated

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Coupling 76 connected in a rotationally fixed manner and extends through the lower coupling part of coupling 76.

The gear 66 meshes with a gear 78, which sits non-rotatably on a shaft 80 which is rotatably mounted in the base 14 and from this downwards extends. The shaft 80 is connected in a rotationally fixed manner to the upper coupling part of a pneumatically operated coupling 82 .

Provided below the base 14 is a plate 84 which is supported against the base 14 by columns 86. In the plate 84 is a drive shaft coupled via a gear 90 to a drive source (not shown) 88 rotatably mounted / which is connected to the second coupling part of the coupling 82. The waves are 62,74 also rotatably mounted in the plate 84 below. On the drive shaft 88 sits a rotatably attached Chain wheel 94 which is coupled to a chain wheel 96 via an endless chain 98. The sprocket 96 is on the Shaft 62 rotatably mounted; it is firmly connected to the lower coupling part of the coupling 68. One on the driveshaft 88 seated chain wheel 1OO is also coupled to a chain wheel 102 by means of an endless chain 104, which is rotatably mounted on the shaft 74 and attached to the lower coupling part of the coupling 76.

From FIGS. 4, 5 and 8 it can be seen that a continuous shaft 106 is rotatable in the shaft 62 and in the coupling 68 is mounted, which above carries an arm attached to it, the above the rack 58 and the gear lies. A cam 110 is attached to the bottom of the shaft 106 and is located under the plate 84. One between the Cam 110 and a tension spring 112 provided on plate 84 fastened to plate 84 presses cam 110 together with the shaft 106 and the arm 108 resiliently around the axis of the shaft 106 in a position in which the cam 110

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abuts a pin 116, the a \ i of the plate 84 downwards is attached protruding. On the plate 84 sits a valve 118 / which is arranged such that it is of the Cam 110 can be actuated when it is around the Axis of the shaft 106 is moved out of its contact position on the pin 116. A cam 120 with a radially protruding Cam portion 122 sits on the bottom of shaft 74 below plate 84. The cam portion 122 acts in the Rotation of the shaft 74 with valves 124,126 together, the mounted on plate 84 and disposed on opposite sides of shaft 74.

7 shows that a finger 128 is attached to the end of the slide 18 remote from the holder 30 is / while on the holder 30 itself is also a Finger 130 is provided. The fingers 128, 130 are open opposite sides of the shaft 106 provided; they act when the carriage 18 moves with respect to the Turntable 16 together with arm 108 in a manner still to be described.

From Figs. 3,9 and 10 it can be seen that on the circumference of the Turntable 16 two recesses 132 are provided which are offset from one another by 180 °. On the base 14 there is a locking member 134 around a pivot 136 mounted pivotably into and out of the recesses 132. With the locking member 134 the piston rod 138 of a compressed air operated reciprocating piston motor 140 is articulated, which one Pivoting of the locking member about the pivot pin 136 can cause.

1 to 3 and 11 it can be seen that the tool part 12 contains a frame 142 in which a hydraulically operated piston engine 144 is arranged. The piston rod 146 of the piston engine 144

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is connected to a carriage 148 which is mounted in the frame 142 in the fore-and-aft direction is mounted to slide back and forth. As in Fig. 12 illustrated, bearing blocks are on the carriage 148 150 attached, in which a yoke 152 can be pivoted vertically about the horizontal axis of spindles 154, which are rigidly attached to the yoke 152 and rotatably mounted in the bearing blocks 150. On the carriage 148 are articulated pressurized air-actuated piston engines 158, which have piston rods 160 protruding upwards, which are articulated to the yoke 152 and cause it to pivot in height about the axis of the spindles 154 can.

Figs. 1, 2 and 11 to 13 show that through the yoke a front and rear protruding hollow shaft 162 extends which is supported in the yoke 152 so that it Although rotatable about its longitudinal axis, it is secured in the yoke 152 against forward / backward movement is. From Figs. 14 to 16 it can be seen that the hollow shaft 162 carries a front bearing part 167 on which a Fork piece 164 with two forwardly projecting fork legs 166 can be pivoted up and down about the axis of pivot pin 168 is stored. A compressed air operated piston engine attached to an upwardly protruding plate of the fork part 164 170 has a rearwardly protruding piston rod 174 which rests against a projection 176 of the Can support bearing part 167, such that the fork part 164 about the axis of the pivot pin 168 in such Direction is pivoted that the fork legs 166 are moved down until one at one at the bottom of the fork part 164 attached holder 180 seated nozzle 178 on a surface 182 on the underside of the bearing ' part 167 is present. A compression spring 184 arranged between the bearing part 167 and the fork part 164 presses the Fork part 164 about the axis of the pivot pin 168 also resiliently downwards.

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1 to 2, 11, 13 and 17 show that on the hollow shaft 162, a housing 186 by means of a front and a rear bearing 188 or 190 arranged at the bottom of the housing 186 about the longitudinal axis of the hollow shaft pivotable, but secured against forward-backward movement with respect to the hollow shaft. On one with one of the spindles 154 rigidly connected to flange 194 (Fig. 2) is attached to a hydraulically operated thrust piston motor 192, whose piston rod 196 is articulated to the rear of the housing 186, so that by the piston engine 192 caused a lateral pivoting of the housing 186 about the longitudinal axis of the hollow shaft 162 can be.

From Figs. 13 and 17 it can be seen that on the front Bearing 188 a tool or brush attachment in the form of a bracket 198 by means of pivot pins 200 around the Axis of this pivot is pivotably supported in the front-rear direction. On the housing 186 a hydraulically operated piston engine 202 is attached, the piston rod 203 of which protrudes forward the bracket 198 is articulated in such a way that the bracket 198 moved by the thrust motor 202 about the axis of the trunnions 200 in the front-rear direction can.

FIGS. 1, 13, 17 and 18 show that a carrier 204 is rigidly attached to the bracket 198. Between the carrier on one side of the bracket 198 and a protrusion 208 on the other side of the bracket 198 extends a hollow sleeve 206 on which a brush unit 210 on · and is pivoted from. A bolt 216 is attached to the front bearing, to which the piston rod a compressed air operated piston engine 214 articulated is. An electric motor 226 is rigidly attached to the carrier 204, which by means of a belt pulley 228 (FIG. 1), a drive belt 230 and a pulley 232 with a,

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in the hollow sleeve 206 rotatably mounted shaft 234 is coupled. The shaft 234 is in turn via a Pulley 236, a drive belt 238 and a pulley 240 are coupled to the brush 222 so that the electric motor 226 drives brush 222.

From Figs. 13, 17 and 19 it can be seen that in the Area between the yoke 152 and the front bearing on the hollow shaft 162 is a non-rotatably attached cam is arranged. Attached to the housing 186! A two-armed lever 244 is pivotably mounted on flange 246, while a valve 248 is attached to flange 246 is, the valve spindle 250 in the valve housing towards the upper part of the lever 244 and away from this is movably mounted. The valve spindle 250 is acted upon by the valve 248 via a hose 252 Compressed air is pressed elastically against the upper part of the lever 244. At the bottom of the lever 244 is a cam roller ·. 254 stored by the valve spindle 250 under the action of the compressed air supplied through the hose 252 is pressed against the circumferential surface of the cam 242. The valve 248 and the piston motor 192 are such connected to each other and to a hydraulic medium source that they form a servo follow-up mechanism, the so is designed that a relative movement of the valve spindle 250 with respect to the housing of the valve 248 in one or the other direction a correspondingly large movement in one or the other direction of the Piston rod 196 triggers with respect to the reciprocating piston motor 192.

17 and 20 show that on one side of the Housing 186 a bearing bush 256 is attached, in which an extension 258 of the housing of a valve 260 in the Is slidably mounted forwards-backwards direction. One between a bracket attached to the bearing bush 256 264 and a tab 266 attached to valve 260

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arranged tension spring 262 presses the valve 260 together with the valve extension 258 elastically so far that one is arranged on the front side of the valve extension 258 Cam roller 268 is held on the cam track 269 of a cam 270 in contact. The curve piece 270 is pivotable in the area in front of the cam surface 269 on a pivot 272 arranged on the housing 186 stored. In the area in front of the pivot 279, the cam 270 is by means of a pin 274 with a tie rod 276 articulated, the bottom by means of a pin 278 on a bearing eye attached to the carrier 204 280 is hinged.

The valve spindle 282 of the valve 260 is as usual mounted back and forth in the housing of the valve 260 and in the valve extension 258. One on that Valve extension 258 arranged connection nipple 284 stands with the hollow interior of the valve extension 258 as well with the front end of the valve stem 282 in communication. The connection nipple 284 extends through a slot 286 in the bearing bush 256 so that the connection nipple and a hose 288 connected to it perform a fore-and-aft movement with respect to the bearing bushing 256 can. The hose 258 is connected to a source of pressurized air; the compressed air flows through the connection nipple into the hollow interior of the valve extension 258 and pushes the valve spindle 282 elastically backwards. The return movement of the valve spindle 282 is caused by contact limited by a bolt 290 which is arranged at the end of a lever 292. The lever 292 is double-armed; he is hinged in the middle of a pin 294 on the rear of the housing. The end extending away from the bolt 290 of the lever 292 is on the piston rod 296 of a return spring provided with a compressed air operated reciprocating piston motor 298, which is arranged on the housing 186. The piston rod 296 protrudes from the piston engine 298 backwards forwards; she will be returned from

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The spring of the thrust piston engine 298 is elastically pressed forward.

The valve 260 and the thrust piston motor 202 are connected to one another and to a hydraulic medium source in such a way that that they form a servo tracking mechanism that is laid out so that with a relative movement in one or the other the other direction of the valve spindle 282 with respect to a central position in the housing of the valve 260 a corresponding, movement of the piston rod 203 in one or the other direction with respect to the Piston engine 202 is generated.

14 to 16 and 21 it can be seen that in the Hollow shaft 162, a rod 300 is supported so that it can move forwards and backwards. The rod 300 carries a feeler finger 302 at the front, below and between the fork legs 166 is located. A cap is placed on the back of the hollow shaft 162, on which the housing of a valve 306 is rigid is attached. The valve 306 has a valve spindle 308 in the housing of the valve 206 in the Movable back and forth forwards and backwards is. The valve stem 308 is aligned with the front of the rear of the rod 300. In addition, the valve spindle 308 elastically pushed backwards by a compression spring 310, which is located between the rear of the housing 3O6 and an abutment 312 is arranged on the rear of the valve spindle. At the back of the housing of the Valve 306 is attached to a hood 314 which surrounds the rear part of the valve spindle 308. On the A connection nipple 316 is provided on the rear of the hood 314, which is connected to a compressed air source and arranged such that compressed air is the bias overcome the compression spring 310 and elastically push the valve spindle 308 into the housing of the valve 306 can.

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The valve 306 and the motor 144 are connected to each other and to a hydraulic medium source that they form a servo tracking mechanism which is designed so that a fore-and-aft movement in the one or the other direction of the valve spindle 308 with respect to a central position in the housing of the valve 306 a corresponding movement in one or the other direction of the piston rod 146 with respect to of the motor 144 causes. It can be seen from FIGS. 15 and 16 that a protective shield 318 is attached to the fork part 164 in such a way that it is between the fork legs 166 above the feeler finger 302 extends.

The following applies when the machines are idling: The piston rod 28 is advanced from the reciprocating piston motor 26, so that the holder 30 and those arranged thereon Parts including tip cushion 38, tip stop 50 and finger 130 in one of the stand 22 and the last pin 24 are in a relatively distant position; the piston rod 36 is inserted into the reciprocating piston motor 34, with the tip cushion 38 being in a lowered position; the The piston rod 42 is advanced out of the reciprocating piston motor 40, the tip stop 50 is therefore in a raised position; the curve part 54 is at a distance from valve 56; the carriage 18 is located on one End of turntable 16 with finger 128 engaged with arm 108 and the cam against the biasing force the spring 112 is pivoted so that the valveΊ18 is open; the groin pin is essentially aligned with the axis of rotation of the turntable 16, it is substantially aligned in the front-rear direction with the brush 222. The shaft 88 rotates; the clutches 68,76,82 are disengaged so that the sprocket from the sprocket 94 is rotated about the stationary shaft 62, while the sprocket 102 is rotated around the stationary shaft 74,

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is set in rotation by the sprocket 100 and the shaft 80 stands still. The cam part 122 on the Shaft 74 is in the position of FIG. 8; the piston rod 138 is advanced out of the reciprocating piston motor 140, so that the locking member 134 is pivoted about the pin 136 into a recess 132 of the turntable 16 and the turntable is locked in a rotationally fixed manner; No compressed air enters the hood 314 through the connection nipple 316 a, so that the spring 310 presses the valve spindle 308 into a rear position in the housing of the valve 306, with which the servo follow-up mechanism, which connects the valve and the piston motor 144 to one another, causes that the piston rod 146 is retracted into the reciprocating piston motor 144 and thus the slide 148 together with the brush unit 210 in a rear position; the piston rods 160 are from the piston engines 158 advanced so that the brush unit 210 is in an upper position; the spring 184 moves fork portion 164 counterclockwise (FIG. 14) about the axis of pivot pin 168 so that the fork legs 166 are pushed down to a position in which the tip 321 is at the top of the nozzle 176 at the Face 182 abuts; the piston rod 174 is advanced from the rear of the reciprocating piston motor 170 into a position, which is close to but at a distance from the projection; Compressed air enters the housing of valve 248 through the hose 252, which moves the valve spindle 250 elastically to the left with reference to FIG. 19 against the upper part of the lever 244 presses, while the cam 242 via the lever 244 the valve spindle 250 in a middle Position in the housing of the valve 248 presses, so that the valve 248 and the piston engine 192 together connecting servo tracking mechanism holds the piston rod 196 in a central position in the piston motor 192, whereby the fork legs 166 in an im essential horizontal plane and the axis of rotation

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(Fig. 13) the pulley 240 and the brush 222 are also in a substantially horizontal direction Located level; the reciprocating piston motor 298 has pushed its piston rod 296 backwards so that the bolt 290 the valve spindle 282 with respect to the housing of the valve 260 against the action of the hollow interior of the valve extension 258 via the hose 288 and the connecting nipple 284 advances the pressurized air, so that the servo follow-up mechanism between the valve and the thrust piston motor 202 also 'the piston rod has advanced from the thrust piston motor 202 and thus the brush unit 210 in a forward position with respect to the front bearing stands; this is where the brush is '222 with respect to the fork legs 166 in a relatively seen front position; the spring 262 pushes this Valve 260 resiliently so that the valve extension 268 rests on the cam surface 269; the cylinder is 220 with respect to the piston rod 202 pushed up, so that it the brush unit 210 with respect to the carrier 2O4 holds in a raised position and the brush 222 with respect to the fork legs 166 in an upper position stands; the electric motor 226 is switched on - it sets the brush 222 in rotation -.

22, 22A show a shoe unit that has a Last 324, on which a shoe upper 326 is arranged, while an insole 328 is arranged on the last floor located. The shoe upper 326 is already pinched on, so that the pinched edge 330 rests against the insole and is attached to it; it extends inward from the outline of the insole and the groin floor.

The shoe unit is used by the operator with the The shoe bottom is placed on the last pin 24 pointing upwards, the last pin in a manner known per se "engages in the last pin hole on the upper side of the heel part of the last". The shoe unit is put on in such a way that

509814/0234

that the tip of the shoe unit faces the holder 30. The operator then operates by hand valve, not shown, through which the reciprocating piston motor 26 is operated in the sense that it is his Piston rod 28 retracts and retracts holder 30 along with tip pad 38, tip stop 50 and the Finger 130 under the elastic force exerted by the compressed air so far back against the stands ^ "22 pulls until the shoe stop 50 rests against the tip of the shoe unit. As a result of this system, the rails 46 and the tip system 50 is pivoted clockwise, based on FIG. 1, about the axis of the pin 48 to such an extent that the cam 54 adjusts the valve 56. The adjustment of the valve 56 has the consequence that the piston engines 34, 40 are actuated and the pusher piston motor 34 raises the tip cushion 38, while the pusher piston motor 4O the rail 46 and the tip stop 5O lowers.

As can be seen from FIG. 3A, the tip stop 50 carries on the side facing away from the rail 46 a downwardly projecting finger 232 which is pivotable on the pin 48 is mounted and is elastically pressed away from the stand 22 against a stop 334, which on the strut sits so that the tip stop 50 and the cam 54 are held in their rest position. The pivoting the tip stop about the axis of the pin 48 has a pivoting of the finger 332 as a result, so that this is aligned with a guide piece 338 attached to the holder 30. The finger 332 comes with the guide piece 338 during the downward movement of the tip stop 50 engaged, whereby the tip stop 50 and the rail 46 are held in their pivoted state, while the valve is in the adjusted state by the cam 54 for the remainder of the machine cycle remains.

By lowering the tip stop 50, this becomes

509814/0234 - 23 -

moved away from the circumference of the toe of the shoe unit so that it does not hinder the roughening process described below the elastic force resulting from the compressed air lifting of the tip cushion 38 brings this with the Forefoot part of the shoe unit in engagement, wherein the shoe unit is pivoted about the last pin 24 so far, until the last pin rests against the wall of the last pin hole of the last 324 and thus the shoe unit on the Slide fixed for the roughening process described below.

From Fig. 6 two hoses 340,342 can be seen, which at the bearing bush 64 are attached. The hose 340 is connected to a channel 344 of the bearing bush 64, while the channel 344 is in turn connected to an annular recess 346 of the bearing bush 64 is. The annular recess 346 is in communication with a channel 348 in the turntable 16, which is connected to a the turntable 16 attached air hose 35Ο is connected. The hose 342 is connected to a channel 352 of the bearing bush 64 connected, which is connected to an annular recess 354 of the bearing bush 64. The annular recess 354 is in turn connected to a channel 356 with the turntable 16, which with an air hose 358 which is arranged on the turntable 16 in communication. One of the tubes 350, 358 sends compressed air to the piston engines 26,34,40 to keep them in the idle state while the other Hose pressurized the piston engines 26,34,40 with compressed air in the sense that the engines in the " operated in the manner already described. The arrangement illustrated in FIG. 6 allows the piston engines 26,34,40 remain in the actuated state when the turntable 16 is rotated in the manner described below will.

- 24 -

5098U / 0234

After the shoe unit has been clamped onto the slide, the operator actuates it briefly by hand a valve, not shown, in order to simultaneously cause the reciprocating piston motors 158 to their 'Retract piston rods 160, with the connection nipple 316 is pressurized with compressed air. As a result of the actuation of the thrust piston motors 158, the hollow shaft 162 lowered so that the brush unit 210 and the fork legs 166 with respect to the axis of the spindles 154 lower the action of the piston engines 158 applied compressed air resulting elastic force are moved downwards. The application of the connection nipple 316 with compressed air has the consequence that the valve spindle 308 with respect to the housing of the valve is advanced against the bias of the spring 310, with which the rod 300 and the feeler finger 302 are also advanced will. Due to the servo tracking mechanism, this forward movement causes which connects the valve 306 and the piston engine 144 together, the piston engine 144 to advance its piston rod 146 and thus the slide 148 together with the brush unit 210 and the fork legs.

The downward movement of the brush unit and fork legs 166 is complete, as are the fork legs 166 in the manner shown in FIG. 23 in engagement with the lasting edge 330 in one of the joint areas come. This is because the fork piece 164 is clockwise relative to FIG. 14 about the axis of the The pivot pin 168 is pivoted against the bias of the springs 184 until the piston rod 174 rests against the projection comes to the plant. The advancement of the brush unit 210 and the fork legs 166 comes to an end when the Feeler finger 302 comes to rest on the side of the shoe unit and then the. Rod 300 moved backwards, whereby the valve spindle 308 in the housing of the valve against the action of that enclosed in the hood 314

509814/02 $ *

- 25 -

Compressed air exerted elastic force is pushed back until the valve spindle 308 a reached middle position in the housing of the valve. When the valve spindle arrives in this middle position, what comes about that the rod 300 arrives in a middle position in the hollow shaft 162, the servo lag mechanism that connects the valve 306 and the piston motor 144 together can use the Stop advancing the piston rod 146.

The nozzle 178 (Fig. 16) has a continuous channel 360, which is connected to lines in the form of air hoses 362, 364. When the machine is idle, the. Nozzle tip 321 blocked by surface 182, with compressed air from a compressed air source passing through the hose 362 flows into the channel 360. Since the channel 360 is blocked off at the top by the surface 182, there is a flow the compressed air from the channel 362 through the hose 364 to a not shown provided with a return spring Control valve, which is thereby switched. As a result of the subsequent engagement of the fork legs 166 pivoting of the fork piece 164 (FIG. 14} in a clockwise direction about the axis taking place on the pinch edge 330 The pivot pin 168 lifts the nozzle tip 321 off the surface 182 so that flow into the channel 360 Air can exit from the nozzle tip 321 and thus reduce or stop the air flow in the hose 362. This enables the return spring of the valve associated with the hose 364 to switch the valve again.

The switchover of the valve assigned to the hose 364 acts as a trigger for the thrust piston motor 240, the is operated to lower the cylinder 220 under the action of the force from the compressed air, whereby the brush unit 210 is lowered about the axis of the sleeve 206 until the bristles 368 of the brush 222 come into engagement with the lasting edge 330 between the fork legs 166 (cf. FIGS. 23, 23A). Switching the

509814/0234 " ²⁶ "

the hose 364 associated valve also has with the result that the thrust piston motor 140 is actuated and the locking member 134 pivots out of the recess 132, with which it had been engaged so that the turntable 16 is unlocked and rotated can. In addition, the clutch 76 is actuated so that the revolving sprocket 102 is coupled to the shaft 74 and the shaft 74 is set in rotation. The rotating shaft 74 rotates via the gears 7 0.72 Turntable 16 about the axis of the bearing bush 64 so that the carriage 18 and the shoe unit about a center point be rotated, which is substantially aligned with the last pin 24 and approximately in the center of curvature of the heel part of the bottom of the shoe unit which is designated by 370 in Fig. 22A.

From the foregoing it appears that the interference would take place the fork leg 166 with the lasting edge 330 lowering the rotating brush 222 into engagement with the Zwickrand 330 and at the same time a. Movement of the heel part of the lasting edge past the rotating brush has the consequence. This arrangement ensures that the bristles 368 of the rotating brush 222 on the brush Shave off or roughen the Zwick edge 330 as it passes by. If the brush with the Zwickrand 330 were in engagement, so they would work out an undesirable groove in the pinch edge, which thereby it is avoided that at the same time the brush is placed in the position of engagement with the pinch edge and the movement of the lasting edge past the brush.

During the movement of the heel part of the lasting edge 330 on the roughening brush 222 must as well as in the • Move the other parts of the lasting edge past the brush according to the respective height of the straight To be roughened Zwickrandteiles are moved up and down, also it must 'be moved back and forth in such a way that it

5038U / 0234

-27 -

is in each case by the desired distance within the part of the outer contour of the lasting edge 330, which is being roughened. In addition, the central plane of the brush 222 must be perpendicular to its The axis of rotation extends and is indicated by dashed lines in FIG. 23A, while the straight ■ To be roughened Zwickrandteile be inclined on the roughening brush that.sie perpendicular to the plane of the just to be roughened area of the lasting edge 330 runs.

The up and down movement of the brush 222 while the pinch edge 330 moves past the brush is thereby brought about that the brush is mounted so that it takes part in the pivoting movement of the yoke 152 and thus is pressed elastically downwards by the compressed air operated piston piston valves 158.

The back and forth movement of the brush 222 during the Movement of the pinch edge past the brush is caused by the feeler finger 302, which is located in the hood 314 Compressed air is resiliently prepressed against the side of the shoe unit. The valve 306 and the Piston motor 144 interconnecting follower servo mechanism is constructed so that the piston rod 146 is stationary and the brush position in the The forward-reverse direction also holds stationary as long as the valve stem 308 is in a central position in the body of the valve 306 sich.befindet and thus the rod 300 also assumes a central position in the hollow shaft 162. A forward movement of the feeler finger 302, which comes about because part of the side of the Shoe unit moves away from the index finger, has to As a result, the valve spindle 308 is advanced in the housing of the valve 306, with which the associated servo follow-up mechanism readjusts the thrust piston motor 144 in such a way that

- 28 ~

5098 U / 0114

that the piston rod 146 voi 'moves and thus the Brush 222 and the feeler finger 302 are advanced until the feeler finger 302 is back on the side of the Shoe unit and thus causes the rod 300 to move the valve spindle 308 into its central position the housing of the valve 306. A return movement of the feeler finger coming from part of the page the shoe unit is effected, has the consequence that the rod 300 from its central position in the hollow shaft is pushed back and thus pushes the valve spindle 308 further into the housing of the valve 306. So actuated the associated servo follow-up mechanism drives the piston motor 144 in the sense that it is the piston rod 146 moves backwards and brings the brush 222 and the feeler finger 302 backwards until the side of the shoe unit a further return movement of the feeler finger is prevented, so that the valve spindle 308 returns to its central position reached in the housing of the valve 306.

The inclination of the center plane 372 of the brush 222 is caused by the fork legs 166 together with the Housing 186 are rotatably mounted with respect to the axis of the hollow shaft 162. While the pinch margin is moving past 330 on the fork legs 166, which are pressed elastically downwards against the pinch edge, ground the fork legs pivoted about the axis of the hollow shaft 162, so that a Underside of the two fork legs 166 connecting plane parallel to the plane of the with the Fork legs engaged Zwickrandes is. This has the consequence that the cam 242 in one way or the other Meaning is pivoted and the valve spindle 250 in one direction or the other out of it via the lever 244 Middle position in the housing of the valve 248 adjusted. An adjustment of the valve spindle 250 in one or the other the other direction from the center position in the housing of the valve 248 allows the valve 248 with the Piston motor 192 engaging the servo follower mechanism to cause the piston motor 192 to engage the piston rod

- 29 -

509814/0234

move in the direction su that the housing 186 in the is pivoted in one direction or the other until the valve spindle 250 returns to its central position occupies in the housing of valve 248. The pivoting of the housing 166 in the respective special Direction has the consequence that the brush 222 in a corresponding Direction is pivoted until its center plane 372 at right angles to the plane of the Underside of the two fork legs 166 extending plane lies.

When the shoe unit rotates about the axis 370, the finger 128 is released from the arm 108, so that the spring the valve 118. can close via the cam 110. As the shaft 74 moves 180 ° from the starting position according to FIG Fig. 8 has rotated, actuates the cam part 122 briefly the valve 126, which is opened accordingly for a short time. The brief opening of the Valve 126 causes the pneumatic clutch 82 to be actuated, so that the shaft 80 together with the shaft 88 is coupled all the way around. In addition, the brief opening of the valve 126 has the disengagement of the clutch 76 Result, with which the orbital movement of the shaft 74 and thus the rotation of the turntable 16 can be stopped. Finally, by briefly actuating the valve 126 actuates the piston engine 140, which .the Locking member 134 swivels into a recess 132 and thus the turntable 16 is locked in a rotationally fixed manner. From the foregoing it can be seen that after the rotation of the Turntable 16 by 180 °, while the heel part of the Zwick edge 33Ö from the breast line part on one side to the breast line part on the other side below Roughening has been rotated by the brush 222, the turntable 16 together with the shoe unit its rotary movement is terminated and locked in a rotationally fixed manner while the shaft 80 is set in rotation. The circumferential Shaft 80 drives shaft 62 via gears 66, 78, causing gear 60 to rotate in the direction of rotation

50 9 814/023 4 " ³ °"

becomes, that the rack 58 together with the slide 18 and the shoe unit is fed lengthwise past the brush 222 so that the brush 222 with a first side part 374 (FIG. 22A) of the lasting edge 330 on the brush 222 in one from the heel to the tip v / ironing direction passed shoe unit comes into engagement and this first side part 374 of the Zwick edge 330 roughened. This longitudinal movement of the shoe unit in one of the heel-to-toe direction on the brush 222 continues until the finger 130 with the arm 108 in Intervention occurs / which can interact with finger 130 because finger 128, as already explained, has come free of arm 108 during the rotational movement of the shoe unit about the axis.

The mentioned movement of the finger 130 by the thrust piston motor 126 towards the stand 22 continued until the toe stop 50 at the toe of the shoe unit had come to rest and the finger 130 was in a position in which that indicated by 376 in FIG. 22A approximately the center of curvature of the toe part of the shoe unit with that designated in FIG. 22A with 376 and the axis of rotation of the turntable 16 formed by the axis of the bearing bushing 64 was aligned, as was the carriage 18 Longitudinal movement on the stationary turntable 16 and thus the shoe unit is directed from the heel to the toe Passing the brush 222 has completed. By engaging the finger 130 with the arm 108, the cam 110 opens the valve 118.

The opening of the valve 118 has the consequence that the thrust piston motor 140, the locking member 134 from the respective recess 132 swivels out and thus unlocks the turntable 16, which can now rotate freely. In addition, the opening of the valve 118 causes the disengagement the coupling 82, whereby the longitudinal movement of the. "

- 31 509814/0224

Slide 18 and the shoe unit arranged thereon be terminated with respect to the turntable 16 while the clutch 76 is engaged, whereby the Turntable 16 is set in rotation. The turntable now rotates about point 376 so that the tip portion of the lasting edge 330 is pivoted past the brush 222 and roughened.

As shown somewhat exaggerated in FIG. 24, the bottom of the shoe unit is somewhat rounded in the toe area and upward to convex, while the bottom of the shoe unit in the range from one to the other Side of the shoe unit in the non-toe area taken cross section is substantially horizontal as can be seen from FIG. In the top area of the shoe unit is thus the bottom of the shoe unit starting from the outline of the shoe unit inwards tilted too slightly upwards. Up to now, the fork legs 16 have been essentially 6 in the machine cycle has been held horizontal in that the piston rod 174 abutted the projection 176, the brush 222 was held in a relatively forward position with respect to the feeler finger 302 by the thrust piston rotor 202, so that the fork legs during the movement of the Zwickrandes 330 on the fork legs fed up with the The pinch margin 330 and the bristles 368 the pinch edge at the desired distance within the pinch edge outline roughened. Because of the inward and upward inclination of the lasting edge 330 in the tip area The result of the shoe unit would be the position of the brush that is relatively far forward with respect to the feeler finger 302 have that the bristles 368 engage on the lasting margin further inward at a greater distance from the lasting margin contour come as in the non-toe area of the shoe unit. To overcome the difficulty and ensure that the fork legs 166 continue to lie snugly against the lasting edge in the tip area of the shoe unit, the

- 32 -

& 098H7Ö2S4

Brush 222 with respect to the sensing bearing 302 by adjusting means moved backwards while the fork legs 166 about the axis of the pivot pin 168 by adjusting means in the pivoted manner described below during the movement of the tip of the shoe unit on the brush upwards can be.

The opening of the valve 118 by the finger 130 also has the consequence that the thrust piston motor 170 is vented, so that the force originating from the thrust piston motors 158 with which the fork piece 164 is elastically pressed down onto the shoe unit, the fork piece 164 around the Axis of the pivot pin 168 can pivot upwards, the piston rod 174 being pushed into the thrust piston motor 170 until the fork legs 166 lie in a plane running essentially parallel to the top of the pinch edge 330 in the area of the support.

The fact that the valve 118 has been opened by the finger 130 , the pusher piston motor 298 is also vented, so that the return spring of this motor returns the piston rod 296 forwards into the motor and the bolt 290 is moved backwards with respect to the valve spindle 282 Compressed air can enter the interior of the valve extension 258 through the hose 288 and push the valve spindle 282 backwards until it rests against the bolt 290 again. This return movement of the valve spindle has the consequence that it is moved out of its central position in the housing of the valve 260, which means that the piston rod is actuated via the servo-tracking mechanism which connects the valve 260 and the piston motor 202 to one another 203 moved backwards and moved the bracket 198 with the bracket 204 of the brush unit together with the brush 222 about the axis of the pivot pin backwards. This backward movement of the carrier 2O4 has

- 33 -

§098 14/0234

the consequence that the tie rod 2 76 moves downwards, with which the cam 270 un the axis of the pivot 272 is pivoted upwards »The cam surface 269 points from top to bottom with respect to the axis of the pivot 72 steadily increasing radius to * This increase in the curve piece 270 causes the Cam surface 269 the mock roller 268 along with the The valve extension 258 and the housing of the valve 260 pushes backwards until the valve spindle 282 is again is in a central position in the housing of the valve 260, with which the Schubkolbejimotor 202 the return movement of the Piston rod 203 and brush 222 ended.

When the shoe unit is rotated around point 376 the finger 130 free from the arm 108 so that the spring the valve 118 can close via the cam 110. As well as the shaft 74 by 180 from its starting position corresponding reduction of the tip part of the Zwick edge 33O over an arc of 180 on the brush has been rotated, actuates the cam part 122 momentarily the valve 124, which is thus opened briefly.

The brief opening of valve 124 has the consequence that the clutch 76 is disengaged and the thrust piston motor 140 the locking member 134 in a recess swivels in, whereby the rotary movement of the turntable 16 ends and the turntable can be locked in a rotationally fixed manner. "

As a result of the brief opening of the valve 124 In addition, the thrust piston motor 298 is actuated again. 'He pushes his piston rod 296 backwards and causes it thus the bolt 290, the valve spindle 282 from its central position in the housing of the valve 260 against the force from the pressurized air flowing through hose 288 to advance. The valve 260 and servo tracking mechanism interconnecting the thrust motor 202 moves the piston rod 203 depending on

509814/0234

ability of aei. Advancement of the valve stem 282 also advance. Doe forward movement of the piston rod 202 has the effect that the _f strap 198 and carrier are advanced by the axis of the pivot pin 200 along with the brush 222 204. This forward movement of the carrier 204 results in a Kub movement of the tie rod 276, so that the cam 270 is moved downward about the axis of the pivot pin 272. The downward movement of the cam 270 causes the cam surface 269 to recede from the cam roller 268. The cam roller 268, together with the housing of the valve 260, is moved forward by the spring 262 in accordance with the receding cam surface 269 until the valve spindle 282 is again in a central position in the housing of the valve 260, whereby the thrust piston rotor 202 moves the piston rod 203 forward and the brush 222 is ended, the brush 222 now being in its original front position again with respect to the feeler finger 302.

As a result of the brief opening of the valve 124 the reciprocating piston motor 170 is also actuated in the sense that it moves its piston rod 174 backwards against the extension 176 advances, whereby the fork piece 164 is pivoted about the axis of the pivot pin 168 downwards, so that the. Fork legs 166 are moved back into a position, in which its underside lies in a substantially horizontal plane.

The brief opening of the valve 124 is also the pneumatic clutch 68 is actuated, which couples the rotating sprocket 96 to the shaft 62, whereby the shaft 62 is driven and the gear 60 is rotated in a direction of rotation that corresponds to the direction of rotation in which it was driven when the clutch 82 was actuated, is opposite. As a result of this rotary movement of the Gear 60 is the rack 58 together with the carriage 18 and the shoe unit in the longitudinal direction on the

- 35 09814/0234

Brush 222 moves so that brush 222 on the second side portion 378 (Fig. 22A) of the pinch edge 330 / the in one pointing from the tip to the heel Direction of the brush 222 passed shoe unit engages. Here, the brush 222 roughens the second Side part 378 of the shoe unit. The lengthwise direction from the tip to the heel The shoe unit moves past the brush 222 until the finger 128 engages the arm 108 comes, which can therefore cooperate with the finger 128 because the finger 130 in the manner already mentioned cleared arm 108 during rotation of the shoe unit about point 376. As a result of cooperation of the arm 108 with the finger 128, the cam 110 in turn opens the valve 118.

This opening of the valve 118 disengages the clutch 68, which ends the tip-to-heel movement of the shoe unit past the brush 222 and the individual parts of the machine are returned to their rest position at the end of the machine cycle. The shoe unit is now removed from the machine with the roughened lasting edge ".

During the rotation of the turntable 16 around the points 370, 376 should be no relative movement between the rack 58 and the gear 60, so that the Carriage 18 is held stationary with respect to the turntable 16. The engagement of the teeth of the rack 58 in the The toothing of the gear 60 is generally sufficient to rule out such a relative movement. If desired, can, however, the respective coupling 68 and 82 during one or the other of these rotary movements are actuated to the gear 60 in the respective direction of rotation to drive positively and thus exclude this relative movement.

5098U / 0.23A

The protective shield 31 protects the feeler finger 302 against the bristles 368 during the operation of the machine.

With some shoe units it is advisable not to have part of the lasting margin, such as the heel part to roughen up. In this case, the machine is controlled such that the brush 222 is not lowered into its position of engagement with the pinch 330 when the Part of the lasting edge that is not roughened is just moved past the brush 222.

From Fig. 25 it can be seen that the feeler finger 302 is mounted on the rod 3OO by means of a holder 38O, which is arranged between the rod and the feeler finger. The holder 380 has a recess 382 on the rear which is engaged by a hook 384 on the front of the rod 300. In addition, the feeler finger has a curved one downwardly extending flange 386 (Fig. 26) which fits into a curved groove 388 on the front of the holder 380 is slidably guided. The center of curvature of the flange 386 and the groove 388 coincide with the front end 390 of the concavely curved front of the feeler finger 302 together. The feeler finger can therefore, if it follows the contour of the curved side of the shoe unit follows the feeler finger as the shoe unit moves past, pivoting around its front end, with which it is ensured that its front end always remains in engagement with the side of the shoe unit. These The arrangement causes the thrust piston motor 144 to move the carriage 148 together with the brush 222 back and forth in such a way that that it is ensured that the brush on the ■ lasting edge 330 at a constant distance inwards engages from the outline of the pinched edge.

As can be seen from Fig. 26, the feeler finger 302 is down inclined slightly upwards and forwards to ensure that its front end 390 is on the side of the Shoe unit in the immediate vicinity of which the floor engages (i.e. on the upper wall of the floor, as from Fig. 23).

509814/0234

Claims (1)

- 37 claims Machine for roughening the lasting edge of the upper from a last with a shoe upper pulled over it and an insole arranged on the bottom of the last shoe unit, the lasting edge of which against the Insole is sheared and attached to this, with a carrier on which the shoe unit with the Shoe bottom can be placed pointing upwards and behind which a frame is arranged in which a by a coupled reciprocating piston motor in the forward-backward direction movable carriage is mounted, which is adjustable in height with respect to the carriage and in the fore-and-aft direction carries together with the carriage movable roughening tool, the carriage of the Piston engine is initially held in a rear position and the roughening tool with respect to the The carriage is initially in an upper position, characterized in that on the carriage (148) a rod (300) carrying a feeler finger (302) at the front for movement in the front-rear direction which is coupled to an actuator (314, 316) by which it is from a central position with respect to the carriage (148) elastically forwards can be pressed and the piston motor (144) through a follower mechanism (306) is coupled in such a way that that the carriage (148) in front of and behind the rod (300) advanced beyond the center position Center position standing rod (300) is moved back, and that starting from the initially unactuated Actuating device this is then made effective by an automatic control and that the Thrust piston motor (144) brings the feeler finger (302) into engagement with the side of the shoe unit and that 509 8 14 / 0.23: 4 - 38 - - 33 - Roughening tool (222) are brought into engagement with part of the lasting edge (333), whereupon the carriers (24, 38) carrying the shoe unit with the lasting edge being moved past the roughening tool (222) are moved with respect to the roughening tool (222). 2. Machine according to claim 1, characterized in that a housing and behind the rod (300) a valve spindle (308) which can be displaced therein, with a valve (306) on the end face of the rod (300) adjacent valve spindle (308) is arranged, which is operated by a servo-follow-up mechanism the thrust piston motor (144) is coupled in such a way that when the valve spindle moves forwards or backwards (308) from a central position with respect to the valve housing of the slide (148) by the piston engine (144) is accordingly adjustable back and forth, and that the valve spindle (308) through a spring (310) is held resiliently rearward against the central position with respect to the valve housing and means (314, 316) are provided through which the valve spindle (308) is overcome the bias of the spring (310) can be moved forward from the central position. 3. Machine according to claim 2, characterized in that a rearward protruding on the valve housing Hood (314) is attached, which surrounds the rear end of the valve spindle (308) and in which a with a Compressed air source connected connection nipple (316) leads. 4. Machine according to claim 1, characterized in that the sensing finger (302) from its front end (390) curved backwards and around its front 509814/0234 - 39 - The end (390) is pivotably mounted on the rod (300). 5. Machine according to one of the preceding claims, characterized in that the rod (300) in a The hollow shaft (162) is guided so that it can be moved back and forth, which by means of a yoke (152) on the carriage (148) is mounted pivotably up and down and one around her Carrying longitudinal axis pivotable housing (186) on which by means of a pivotable bracket (198) the height-adjustable roughening tool (222) nearby a fork piece arranged on the hollow shaft (162) is seated, the yoke (152) being driven by a second thrust piston motor. (158) and the housing (186) can each be pivoted by a third thrust piston motor and coupled to the roughening tool (222) is a fourth reciprocating piston motor through which the roughening tool is adjustable in height with respect to its holder (198), and that under the action of the automatic control, starting from an upper position of the roughening tool with respect to the holder (198) (222) the yoke (152) with the transfer of the feeler finger (302) into the position of engagement with the side of the shoe unit and with the fork legs in contact (166) is lowered on part of the lasting edge (333) and then the roughening tool (222) with respect to it the holder (198) is moved downwards into the position of engagement of the roughening tool with the pinching edge (333) and the movement of the carrier for guiding the lasting edge past the roughening tool is initiated will. 6. Machine according to claim 5, characterized in that it is on the abutment of the fork legs (166) on the Zwickrand (333) has responsive triggering means (178, 364) through which the fourth piston engine in the 509814/0234 - 40 - - 4C - Can be actuated in the sense of initiating the lowering of the roughening tool (222) with respect to the holder (198) and the movement of the shoe unit past the roughening tool (222) can be initiated. Machine according to Claim 6, characterized in that the fork legs (166) are attached to a fork bracket (168) mounted adjustable in height and with respect to this holder elastically downward into a starting position are pressed, from which they are in engagement with the pinch edge (333) with respect to the fork bracket (168) can be moved upwards, and that the triggers have a nozzle (178), the nozzle tip (321) of which when the fork legs are in the rest position (166) with a surface (182) of the fork bracket (168) in engagement, and at from the rest position upwardly moved fork legs (166) at a distance from this surface (182) is located, and that in the nozzle (178) a channel (360) exiting at the nozzle tip is formed which is connected to a first and second lines (362 and 364, respectively), of which the second line, at caused by the contact of the nozzle tip on the surface (182) caused closure of the channel (360) which leads through the second line (364) flowing compressed air and at at a distance from the surface (182) standing nozzle tip is acted upon by a reduced air flow, and that the lines (362, 36 4) on the reduction associated with the air flow through the second conduit (364) are responsive control means through which the fourth thrust piston motor can be actuated in the sense of lowering the roughening tool (222) and the movement past the shoe unit can be introduced on the roughening tool. - 41 - 509814/0214 8. Machine according to one of claims 5-7, characterized in that that the hollow shaft (162) carries a cam (242) to which a on the housing (186) arranged, a valve spindle (250) displaceable in a valve housing having a valve (248) is assigned that is coupled to the third thrust piston motor by a servo follow-up mechanism, under its effect, the housing (186) by the third thrust piston motor as a function of an adjustment the valve spindle (250) from a middle position in the valve housing in a corresponding sense is pivotable ", and that a double-armed lever (244) is pivotably mounted on the housing (186), one end - with the cam (242) and the other end. interacts with the valve spindle (250) and against which the valve spindle (250) is elastically pressed. 9. Machine according to claim 7, characterized in that the fork legs (166) on the fork! Holder (168) pivotable about an inclined axis (168) extending transversely to the longitudinal axis of the hollow shaft (162) and from this axis are mounted protruding from the front, and the roughening tool holder (200) on the housing (186) adjustable by a fifth piston motor (202) with respect to the housing in the fore-and-aft direction is stored and normally held in a forward position with respect to the housing, and that by an automatic control during the movement of the lasting edge (333) of the toe of the shoe Roughening tool (222) the fork legs (166) in the fork holder while allowing pivoting the fork legs until they protrude from the oblique axis upwards and forwards from the lower position, released and at the same time the roughening tool holder (200) by the fifth piston motor with respect to of the housing (186) is transferred to a rear position. - 42 - 5098 1470234 10. Machine according to claim 9, characterized in that a rod (174) adjustable in the fore-and-aft direction is associated with the fork legs, which cooperates with a projection (176) arranged behind her on the fork bracket, and that on the Rod (174) by a drive device (170) a the rod can be exerted to the rear against the projection (176) pressing force which is exerted under the action the control can be removed. 11. Machine according to claim 9, characterized in that it has a with in the valve housing on the housing (186) arranged and an adjustable valve spindle (282) containing valve (260) that via a Servo follow-up mechanism is coupled to the fifth thrust piston motor, such that upon adjustment of the valve spindle (282) from a central position with respect to the valve housing, the roughening tool holder (200) is moved backwards by the fifth piston motor, and that the valve stem (282) is normally is held in the middle position with respect to the housing, into which after an adjustment can be returned from this middle position. 12. Machine for roughening the shaft pinch edge from a last with a shoe shaft pulled over it and an insole of an existing shoe unit arranged on the bottom of the groin, the lasting edge of which against the insole is reeved and attached to this, with a carrier on which the shoe unit with the shoe bottom upwards v / eisend can be placed, and behind which a frame is arranged, in which one by a coupled first elastic piston engine is mounted height-adjustable shaft, the front carries at least one fork leg and on which a tool holder is mounted, which is a height-adjustable Roughening tool, which is located near the gas 5098U / Ö234 ⁴³ ~ - A3 - belschenkels arranged and with a second elastic The piston motor is coupled, by means of which it can be adjusted in height with respect to the tool holder, wherein the shaft is initially held in an upper position by the first piston engine, thereby characterized in that the roughening tool (222) by the second thrust piston motor (214) initially in an upper position with respect to the tool holder (198) is held above the fork leg (166) and the shaft (162) then by the first piston engine (158) can be lowered until the fork leg (166) is on a part of the shaft pinch edge (333) rests, and that subsequently the roughening tool (222) with respect to the second thrust piston motor (214) the tool holder (198) until it engages the associated part of the shaft pinch edge (333) lowerable and the carrier (24, 38) of the shoe unit with respect to the roughening tool (222) in the sense of moving past of the other parts of the shaft pinching edge on the roughening tool (222) are movable. 13. Machine according to claim 12, characterized in that they trigger means (178, 178, 364), through which the second thrust piston motor (214) in the sense of lowering the roughening tool (222) can be actuated and the movement of the wearer of the shoe unit can be initiated. 14. Machine according to claim 12, characterized in that the fork leg (166) adjustable in height on its fork bracket is stored and is initially pressed into a lower position with respect to this fork bracket, from which it can be lifted when the fork leg rests on the shaft pinch edge (33), and that the triggering means has a nozzle (178) with a nozzle tip (321), the one in the lower starting position ..l ;: - 44 - 509814/0234 Fork legs (166) with a surface (182) of the fork bracket cooperates and at a distance when the fork leg (166) is moved upwards from the starting position stands from this surface, and that a channel (360) exiting at the nozzle tip is formed in the nozzle (178) communicating with first and second lines (362 and 364, respectively) of which the second line when the shutoff of the caused by the contact of the nozzle tip on the surface (182) Channel (360) which leads through the second line (364) flowing compressed air, and at a distance from the surface (182) standing nozzle tip is acted upon with a reduced air flow, and that finally the Conduits (362, 364) control means responsive to the reduction of the air flow through the second conduit (364) are assigned, by means of which the second thrust piston motor can be actuated in the sense of lowering the roughening tool (222) and the movement of the wearer of the shoe unit can be initiated. 15. Machine for roughening the shaft pinched edge from a last with a shoe shaft pulled over it and on Inguinal floor arranged insole existing shoe. unit, the lasting edge of which has reeved against the insole and is attached to this, with a carrier on which the shoe unit with the shoe bottom facing up pointing can be placed and behind which a frame is arranged, in which one by one in the forwards-backwards -Directionally extending axis rotatable shaft (162) is rotatable, which carries a fork leg at the front and on which a pivotable housing is mounted about the axis of the shaft, with which a pivoting movement causing Piston engine is coupled, and a roughening tool that can be pivoted together with it which is arranged in the vicinity of the fork leg, - 45 509814/0234 - 4 h - characterized in that on the shaft (162) a Cam (242) is arranged, and on the housing (186) an adjustable valve spindle (250) having Valve is attached to its valve housing, which with the thrust piston motor (192) via a servo follow-up mechanism is coupled in such a way that the housing (186) by the thrust piston motor depending on the adjustment of the valve spindle (250) from a central one Position in the valve housing can be pivoted in a corresponding manner in one direction or the other, and that on the housing (186) a double-armed lever (244) is articulated, which cooperates at one end with the cam (242) and at the other end with the valve spindle (248) and against which the valve spindle (250) is pressed elastically. 16. Machine for roughening the shaft pinched edge from a last with a shoe shaft pulled over it and on An insole arranged on the groin floor, the shoe unit of which has reeved against the insole and is attached to this, with a carrier on which the shoe unit with the shoe bottom facing upwards can be placed 'and behind which a frame is arranged, in which a housing in the forward-backward direction as well as the height is movably mounted, the one adjustable on it in the forward-backward direction Carries roughening tool, under which a feeler finger is provided, which together with the housing as well as in the forward-backward direction is movable, wherein the housing is elastically pushed down until the roughening tool with part of the shaft pinch edge comes into engagement while the feeler finger comes into contact with a corresponding part of the side of the shoe unit pushed forward. can be, characterized in that the roughening tool (222) is normally in a relative of the housing (186) is held in the front position and the carrier (24, 38) is 5098 U / 0234 - 46 - - 16 - device by moving the shaft pinching edge (333) past the roughening tool (222) and other corresponding ones Parts of the side of the shoe unit on the feeler finger (302), is movable, and that through the on successive parts of the side of the shoe unit adjacent feeler finger (302) a corresponding forward Backward movement of the housing (186) can be given, and that when the tip moves past part of the shaft pinching edge (333) on the roughening tool (222) the roughening tool (222) with respect to the housing (186) can be moved backwards. 17. Machine according to claim 16, characterized in that it has a rotary table rotatable about a vertical axis (16), which has one between two end positions on the turntable in opposite directions and carries movable carriage (18) on which the carrier of the shoe unit is arranged and which through a drive device (82) with a stationary turntable (16) in a first direction between the end positions allowing the roughening of a first side part of the shaft pinch edge through the Roughening tool (225) is movable, and that the carriage (18) is then driven by second drive means (68) with the turntable (16) stationary, in the other direction between the end positions while enabling the roughening of the other side part of the shaft pinch edge is movable, and that also the turntable when the slide (18) is in an end position between the movements of the slide (18) with respect to of the turntable (16) is rotatable, allowing the tip part of the shaft pinch rim (333) to be roughened and during the rotary movement of the turntable, the roughening tool (222) with respect to the housing (186) can be moved backwards. 609814/0234 18. Machine according to claim 16, characterized in that it is up and down together with the housing (186) and a forward and backward movable fork mount (167) in one about a direction transverse to the fore-and-aft direction extending inclined axis (168) pivotable fork leg (166) is mounted, which in in the vicinity of the roughening tool (222), and at following the downward movement of the housing (186) with the shaft pinch edge engaging the shaft pinch edge on the shaft pinch edge "to rest comes, and that the fork leg (166) is normally in its fork holder in a lower position is held with respect to the fork bracket and simultaneously with the return movement of the roughening tool is releasable with respect to the housing (186) in such a way that the fork leg (166) around the inclined Axis (168) can pivot until it is from the inclined axis with respect to the lower position protrudes upwards and forwards. 50981.4 / *** '" ⁴⁸ " -J9. Machine according to Claim 18, characterized in that a carriage (148) which can be adjusted in the fore-and-aft direction by a first thrust piston motor (144) is arranged in the frame (142) behind the carrier (24, 38) and on which one is a second elastic thrust piston motor (158) is mounted vertically adjustable shaft (162) which carries the fork bracket (167) at the front and on which one can be reciprocated by a third thrust piston motor (202) in the fore-and-aft direction and with respect to the shaft in a forward position holdable tool holder (198) is mounted, which carries an up and down movable roughening tool (222), which is located in the vicinity of the fork leg (166) and is coupled to a fourth elastic piston motor (214) , through which it is a Up and down movement with respect to the tool holder (198) can be given and that on the shaft (162) a rod (300) adjustable in the fore-and-aft direction is mounted, which is at the front en beneath the fork leg (166) carries feeler finger (302) and is elastically pushable by actuating means (316) from a central position with respect to the shaft (162) and is coupled to the first thrust piston motor (144) by a servo follow-up mechanism such that the The slide (148) can be moved back and forth from the middle position accordingly by the first push-piston motor as a function of an adjustment of the rod (300). '20. Machine according to claim 19, characterized in that that it has an automatic control under the action of the roughening tool (222) by the fourth thrust piston motor initially held in an upper position with respect to the tool holder (198) is and the actuating means are de-energized, whereupon the actuating means are then simultaneously effective made and the second piston engine in terms of - 49 - S098U / 0234 - 4'Y - Lowering of the shaft (162) and the transfer of the feeler finger (302) into contact. the side of the shoe unit and the abutment of the fork leg (166) on part of the shaft pinch edge can be actuated, whereupon the roughening tool (222) is engaged with respect to the tool holder by the fourth piston motor with the corresponding part of the shaft pinch margin (333) 'Can be lowered and the wearer of the shoe unit while guiding the shaft pinch edge past the roughening tool is movable. 21. Machine according to claim 17? characterized in that the fork leg (166) is assigned a rod (174) adjustable in the fore-aft direction, which cooperates with a arranged behind her on the fork bracket projection (176) and that on the Rod (174) by a drive device (170) pushing the rod backwards against the projection (176) pressing force can be exerted, which can be removed under the action of the control. 22. Machine according to claims 19 and 2O, characterized in that, that they have an adjustable valve spindle (282) aufweisendes.an the shaft (162) attached valve (260), which via a servo follow-up mechanism with the third push piston rotor is coupled in such a way that upon adjustment of the valve spindle (282) a middle position with respect to the valve housing, the roughening tool holder (200) by the third The reciprocating piston motor is moved backwards and that the valve spindle (282) is normally in the middle Position with respect to the valve housing is held in which it can be returned after an adjustment from this middle position. - 50 - 5098 14/023 23 · Machine for roughening the shaft pinch margin one made up of a last with a shoe upper pulled over it and an insole arranged on the last floor existing shoe unit / the lasting edge of which is sheared against the insole and attached to it, with a cleaning tool on which the Zwickrand can be moved past and that during the movement of the Zwickrand at least with one Part of the Zwickrand moved past can be brought into engagement v / ground, characterized in that it has a turntable (16) rotatable about a vertical axis, on which one between two end positions in opposite directions reciprocable carriage (18) is arranged on which a the one with the bottom of the shoe facing up = patch The shoe unit carrying carrier (24,38) is placed and that actuating means interact with the shoe unit, by which the distance between the end positions by one to the length of the one placed on the carrier Shoe unit proportional amount is adjustable and that the turntable (16) by a drive device (76) rotatable in the same direction in each case when the carriage (18) is stationary in each of the end positions and the carriage (18) between the end positions when the turntable is stationary after the rotation of the turntable has been completed Turntable (16) can be moved to the other end position by drive means (68, 82) and the shaft pinch (330) during the rotational movement the turntable (16) and the movement of the slide (18) Can be guided past the roughening tool (222) which is in engagement with it between the two end positions is. - 51 - 509814/0234 24. Machine according to claim 23, characterized in that the adjusting means have a rigid on the carriage (18) have attached stand (22) which carries a support element (24) for the shoe unit and on the Slide (18) a holder (30) which can be moved towards and away from the stand (22) and which a second support element (38) for the shoe unit carries and in one of the length of the shoe unit proportional Distance to the stand (22) is adjustable and that on the stand (22) and the holder (30) ″ respectively an actuating mechanism (128,130) is arranged through which in the course of the slide movement taking place in a predetermined position on the turntable (16) shutdown means (108, .110, 118) are triggered. 25. Machine according to claim 2 3 _}, characterized in that the actuating mechanisms on the stand (22) and the holder (30) have fingers (128, 130) and the disconnection means via an arm (108) mounted on the turntable (16) grouting, which can come into engagement with the respective finger when it moves towards it. and through which the termination of the slide movement between the end positions can be triggered depending on the engagement of one of the fingers (128, 130), • 26. Machine according to claim 2 3 or 2 4, characterized in that that the holder (30) carries a tip cushion (38) as a carrier element and on it one of the tip of the shoe unit associated tip stop (50) is arranged, which by corresponding forward movement of the holder can be brought to bear on the stand (22) at the tip of a shoe unit placed on a last pin and that depending on the engagement of the shoe unit on the lace system (50), the shoe unit by a locking device (34,40) on the $ 0981-4 / 0234 - 52 - Support elements can be locked and the toe stop (50) can be moved away from the shoe unit. 27. Machine according to claim 26, characterized / that the tip cushion (3 8) and the tip system (5O) are mounted so that they can be moved up and down, and the tip cushion (38) initially in a lower position and the tip stop (50) initially in an upper position Position are held and that depending on the engagement of the shoe unit on the toe stop (50) the toe stop (50) can be lowered out of engagement with the shoe unit and the toe cushion can be raised while locking the shoe unit on the support elements. 509814/0234