DE1510025A1 - Heel nailing machine - Google Patents

Description

MÖNCHEN b

Dr. JZxpI »[

Description of the patent application

of UNITED SHOE MACHINERY CORPORATION in Flemington,

New Jersey, and Boston, Massachusetts, United States of America,

concerning

"Absatzaufnagelmaschine" Priority: 2 _O October 1961 Ver.StoVo America

The invention relates to a heel nailing machine and, more particularly, to an improved shoe carrier for heel nailing machines »

In the manufacture of shoes, it is customary to attach heels to shoes using a screw or a nail and a machine to carry out this work step "is already known ο The screw" or the nail is made by a last extending through the heel part of the shoe-wearing last The passage is driven into the heel seat of the shoe and the heel and is used to hold the heel on the shoe while various finishing operations are carried out and until the last is pulled out of the shoe

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the seat of the heel and the saws driven into the heel attached to the son; however, the screw or the remains Nail in the shoe and help keep the heel on the shoe

The screw or nail is driven in by a driving tool provided in the known machine through a hollow bar = spindle, which is located in a passage provided behind the bar pin recess of the bar and runs vertically through the heel part of the bar and forms an angle of about 8 ° with a line that is sloping at the level of the edge of the ledge plate of the ledge o The passage serving to receive the ledge spindle weakens the ledge and increases its manufacturing costs. For these reasons, the last pin recess has been lengthened so that it extends through the heel part of the last and can accommodate the last spindle ₉ in which the drive screw for the anchor screw or the tacking nail can be moved back and forth. The Leiatanzapfenauenehraung and one Terlängeuqg of the last pin recess forming passage run essentially at right angles to the plane of the edge of the heel side plate of the last "

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The aim of the invention is to design a shoe holder for a heel nailing machine which is used to attach sows, so that both a last with a special, inclined passage that accommodates the bin tool and a last with a passage that is the continuation of the last pin recess are attached to it kanrio

The HeelBufrage] machine with a bar containing a bar spindle ζιιβ carrying a last provided with a shoe, with a hold-down device for the heel to be attached to the shoe, with means for driving a fastening means in the form of a screw or hail through the heel seat of the shoe in the heel and with drive means for din holding-down device and the means for driving the Beiestigungemittelo _v according to the Cardinal Erfindungsmerksial characterized in that the shoe support initially allowing its transmitting both of a last with a continuation of his Leistenzapfenausnehmung forming passage for the fixing means and a last with a passage for the fastening means separated from the bar, pin recess - in addition to the bar spindle, it is provided with a bar support part, both of which are moved through the bar and are movable with respect to one another and there ß the bar spindle is also movable in at least two working positions with respect to the lead carrier part

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According to the invention, the shoe carrier contains a slide which is in a guide between a workpiece attachment position and a working position movable and on which a guide block for the bar spindle is and are pivotally mounted Means provided on the slide for fixing the guide block in one of two different angular positions »

According to the invention, the bar spindle is provided with a foot to regulate its axial movement / jSfnerhalb the guide block according to the position of the slide in the guide, which on strabismus j the parts of which allow axial movements of the bar spindle within the guide block.

According to the invention, the rails are for locking the bar spindle against movement in the guide block when the slide β a workpiece on ^ ring division occupies, formed and arranged.

According to the invention, the strip support part is movably arranged on a piston provided in the slide and pushed upward by compression springs and with a valve rod a in connected to a cylinder for the piston provided valve "

According to the invention is to close the valve and to block the piston against movement with respect to the cylinder a compression spring is provided on the valve rod.

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According to the invention, for the purpose of regulating the veraperrena of the piston against movement in relation to the cylinder according to the position of the slide provided in the guide means sum controlling the effectiveness of the compression spring.

According to the invention, the means for controlling the effectiveness of the pressure springs comprise an angle lever connected to the valve rod and a crouch on the guide for the slide and are the angle lever and the cam are designed and arranged »that they allow the compression spring to take effect» when the Slide has been moved from its workpiece attachment division lato

According to the invention, a sleeve that can be slipped onto the ledge spindle is provided to enlarge the diameter of the lath spindle according to the diameter of the ledge pin recess of the ledge, and the ledge spindle is designed so that the upper end of the sleeve attached to the ledge spindle assumes the same height as the upper end of the ledge spindle _{or the like}

According to the invention, the slide is to lock the on the In the working position, the inguinal plug-on sleeve has a lever that fits over a lower end of the sleeve provided with a flange and is under the action of a spring / see.

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BAD OFHQINAL In the drawings let:

Fig. Ι a sectional view of a shoe carrier of an AbaataufnageImaschine, the shoe carrier is shown in the workpiece attachment position and provided with a shoe-carrying last, the one for receiving a Leiatenoplndel serving, the continuation of its last tenon recess forming passage,

Figo 2 is a view similar to FIG. 1, in which the shoe wearer is shown in its heel nailing position and a bar «, which is provided with a special, behind the bar tap recess, for receiving the bars * spindle serving passage is equipped,

3 shows a partially in section along the line III - III

the Fig. 1 guided front view of part of the shoe carrier,

4 shows a sectional view along the line IV-I? you Flg. 1,

FIG. 5 is a perspective view of a control device from FIG Control means for a valve regulating the effect of a last support of the shoe wearer,

FIg '. f> a diagrammatic view of means used to restrict the movement of the shoe wearer,

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Figo 7 a diagrammatic view of means for regulating the movement of the bar spindle »

8 shows a sectional view shown on an enlarged scale a part of the bar spindle and a sleeve attached to it,

9 is a diagrammatic view of a support plate of the rivet support 3 machine ₉

Figure 10 is a front view of a modified embodiment a hold-down device and

FIG. 11 is a side view of part of that shown in FIG Hold-down device ο

As can be seen from FIGS _. 1 and 2, a heel 20 is communicated to a shoe 22; a screw or nail 24, which is then driven through the heel seat of the shoe 22 into the heel 20 after the heel 20 has been attached to the shoe 22 in this way and after a last 26 carrying the shoe 22 (Fig. 1 ) or 27 (FIG. 2) has been pulled out of the shoe 22, the heel 20 is finally attached to the shoe 22 in a known manner by means of nails (not shown).

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Each of the lines 26 and 27 has one for receiving a strip spindle serving passage 28 (Fig. 1 and 2), which is either a continuation of a ledge pin recess 30 of the last 26 is or calibrated behind the last pin recess 30 dee Last 27 located While the axis of the in the last 27 formed passage 28 and a not shown, perpendicular to the plane of the edge of a Absateeitzplatte 31 (Fig.2) Running line enclose an angle of approximately 8 °, the axis of the passage 28 of the strip 26 extends (Fig. I) perpendicular to the plane of the edge of the heel side panel 31c

The heel nailing machine embodying the invention contains a piston 34 which is movable to and fro in a frame 36 of the machine and serves to move a driving tool 38 upwards nail collect 24 by the heel seat of the shoe 22 and the shoulder 20, which is held by a hold-down device 42 into engagement with the heel seat of the shoe 22, the heel seat plate 31 of the strips 26 and 27 has a bent above the passage 28 opening 43, the is smaller than the passage 28 "

A post of the frame 36 carries an attachment 44 in which a guide 46 is formed »A slide 48 of the shoe

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carrier 40 is slidable in the guide 46 Position (Fig, 1) of the carriage 48 of the shoe carrier 40 (? igd) is by the engagement of a pin 50 (Figo 3 and 6) of the Carriage 48 is determined with a stop plate 52 which is screwed to the attachment 44, while in the rearward direction movement of the carriage 43 takes place by hitting it to a crossbar adjustably attached to the frame 36 54 is restricted.

An upright housing part 56 of the slide 48 is equipped with a pair of rearwardly extending, spaced apart flanges 58 which form stops for a guide block 60 (FIGS. 1, 2 and 4). The guide block 60 is arranged on two bearing pins 62 , which are provided in a support arm 64 o The support arm 64 is fastened to the slide 48 by means of bolts 6. «The guide block 60 is provided with a cylindrical bore 66 and with recesses 67 and 68 (FIGS 68 serve to receive a plunger 70 which is slidably mounted in a guide track 72 (FIG. 4) of one of the flanges 58 of the carriage 48 and is pulled to the right by a spring 74 (FIG. 4) Bearing if ti 62 is pivoted and its angular position on the slide 48 can be determined by inserting the plunger 70 into one of the recesses 67 and 68. A handle 76 is provided on the plunger 70 for this purpose.

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sparun ^ 67 encloses "the axis of the bore 66 of the guide block 60 runs in the vertical direction" while the axis the bore 56 an angle of about 8 ° with the vertical forms when the plunger 70 has been inserted into the recess 68 ^; ^

Its hollow shaft 78 is slidable in the bore 66 of the guide block 6 () and surrounds the reciprocating internal mechanism: The lower part of the bar spindle 78 has a larger diameter than its upper part and a conical middle part represents the transition from the lower part of the bar spindle 78 to its upper part. The strips spindle 78 fits into the passage 28 of the last 27 and is pulled by a tension spring 80 upwardly "the tensioned between a pin in the guide block 60 and a pin in a foot 82 isXc The foot 82 is aiii means of a screw 84 on the lower part ' Rail spindle 78 is jammed and has transversely extending fluffs 85 with undersurfaces 86 and 87 ° at an angle to one another As a result, the bar spindle 78 can be adjusted so that the height of the upper end of the bar spindle 78 can be adjusted on the last 26 and 27 drawn shoe 22 a certain Position in relation to the driving tool 38 *

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ORIGINAL BATHROOM,

The passage 28 forming the continuation of the last pin recess 30 of the last 26 usually has a larger diameter than the passage 28 in the last 27ο For this reason, if a heel is to be attached to shoes 22 sucked onto the last 26, a sleeve 88 (Fig . 1,4 and 8) on the upper part of the strips spindle 78 patch the sleeve 88 has a provided with a Plansch lower end 89 ₀ When the Untorende 89 of Hülsο 88 on the upper end of the conical central part of the strips spindle touches 78, the edge are of Oberendas the Sleeve 88 and the edge of the upper end of the bar spindle 78 in a common plane

So that the sleeve is held in the desired position on the bar spindle 78, a lever 90 is provided, which so on a pin 91 attached to the guide block 60 supports that its upper end over the flange at the lower end 89 of the Sleeve 68 holds a spring 92 between the guide bloom 60 and the lever 90 is provided and presses the upper end of the lever 90 into its working position shown in Fig. 1 »

The downward movement of the driving tool 38 in a passage 95 of the ledge spindle 78 is indicated by a projection 94 (Fig. 2) limited by a Schiita 95 in the

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Wall of the bar spindle 78 and ₉ extends into a notched groove 96 which runs along the lower part of the driving tool 38. The projection 94 lies in a recess 97 in the guide block 60 and is held in the desired position on the guide block 60 by means of a slot 93 in the projection 94 extending into the guide block 60 94 on the guide face 60 to change the position of the driving-in tool 38 in adaptation to the respective »length of the screws or nails 24

In a work piece attachment position of the shoe wearer 40, the bar spindle 78 is held against downward movement _{by the contact of one of the lower surfaces 86 and 87 of the flanges 85 of the foot 82 with rails 100 running parallel to the guide 46 Λ} The rails 100 are adjustable on the attachment 44 by means of screw jacks 101 attached ο After the carriage 48 has been moved a predetermined distance after its working position "the foot 82 of the bar spindle 78 comes to slide parts 102" which allow a slight downward movement of the bar spindle 78 ". At this point in time, the bar 26 or 27 is supported in the manner described below

A cylinder 104 is formed in the housing part 56 of the slide 48 and contains a tubular piston 106

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a widening at its upper end _{o A} spherical trough 108 is formed in the widening and serves to receive a correspondingly shaped support plate · 110 with a flat surface to support the last 26 or 27 »The downward movement of the hold-down torlctatung 42 initially swivels the support plate 110 in the dl · Angular position required in each case ο When the hold-down pressure then acts on the support plate · 110, it is held against displacement on the piston 106.

The support plate 110 has a slot 112 through which the bar spindle 78 is guided.The piston 106 and the support plate 110 are pushed upwards by compression springs 114. The compression springs 114 surround rods 116 which are attached to the piston 106 and through bores 118 in the slide stretched 48 sindο the upward movement of the piston 106 under the influence of the compression springs 114 is determined by the engagement of nuts on the rods 116 to the underside of the carriage 48 is limited Thus, the above the slot 112 in the platen 110 z \ x coming part ο the surface of the cover part of the last 26 and 27 is supported »a slide plate 119 (? Lgo 1, 2 and 9) is provided, which is movable in a guide track 120 in the surface of the support plate 110 and is provided with a bore 1: 1 for the rail spindle TQ is. In order to support the last 27, the support plate 110 can thus in relation

be aligned on the piston 106 so that the surface of the support plate 110 is inclined slightly downwards in the rearward direction, 90 9816/0449

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When removing the shoe 22 marked with the abiata 20 from the machine, it happens that the operator swivels the shoe 22 and thus the front end of the support plate 110 close to the bottom. As a result, it takes more time to install the next shoe 22 in the machine than would be the case if the surface of the platen 110 were horizontal. To avoid this, the platen 110 has protrusions 122 on its front end - those normally on the piston 106 abut the doorway 122 only permit a rearward pivoting of the support plates 11O ₇ so that deviations in the angles between the Durongangle 28 in the strips 26 or 27 and 4 are perpendicular to the line formed by the edge of the Absattaitsplatte 31 and Irregularities in the surfaces of the heel part of the lasts 26 and 27 are evened out.,

The common axis of properly angebraohten in the offer 26 Leistenzapfenausnehmung 30 and the passage 28 forms "as already mentioned, a right angle with the surface of the heel portion of the last 26 _o As a result, it is for editing soaked up on rails 26 shoes 22 are not required, Provide a pivotable support plate 110 _o Therefore, the support plate 110 for the processing of shoes 22 on the lists 26 can also be fastened in a horizontal position to the piston 106 or be formed in one piece with the piston 106 if the strips 78 are shown in the figure

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The embodiment of the shoe carrier 40 is that shown in FIG position for taking up the LeIaten 26 assumes, then the vertical axis of the Leietensapfenausschnitt 30 a considerable distance behind the vertical axis of the tubular Piston 106c of the slide plate 119 and the platen 110 downward pressure exerted tends as a result to do this, the rear end of the platen 110 downwards to pivot ο For this reason, a block 123 is by means of Screws 124 on the rear end of the top of the Kolbeiis 106 attached- If then the masohine for processing is adjusted by shoes 22 put on strips 26 »the sliding plate 119 rests on the surface of the block 123» while the projections 122 of the support plate 110 rest on the surface of the tubular piston 106 as a result wi2d the support plate 210 is held on the piston 106 against pivoting o

A valve insert 125 is attached to the lower end of the piston 106 attached, in which a valve rod of a valve 126 is movable o A compression spring 127 let arranged so that it one to close the valve 122 and dee uurohgangea through the piston 106 exerts pressure on the valve stem, After the valve 126 has been closed, oil in the cylinder 104 prevents the piston 106o from being guided

When the thrust carrier 40 is its WerkstUok- shown in Figo 1

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Assumes attachment position, the valve 126 is held in the open position by an angle lever 128 (Mg. 3 and 5) consisting of several parts. The angle lever 128 is articulated on the extension of the piston 106 and contains a forked αγγε which extends between a thickening and a flange on the valve rod of the valve 106. In addition, the pivot bolt 128 has an arm which moves along a cam 129 during the movement of the slide 40 in the guide 46. In the Werkstückanbringe · - alternate mg det üehuhträgere 40 is the arm of the angle lever 128 to the -vorstehenden part of the cam 129 in engagement, whereby the valve wirdr kept at a distance from its valve seat 126

The nuts on the rods 116 allow the piston 106 and 106 to rise. of the support plate 110 through the compression springs 114 such that when the Absatesitzplatte 31 on strips 26 or 27 with the low heel part touches the groin 78, the Unlocked pistons 106 to a minor extent Engagement of the heel part of the last 26 or 27 with the Auflageplattta 110 can be moved downwards «if the shoe wearer 40 moved in the rearward direction in the Absataaufnagelstellung is, the aforementioned Ana of the bell crank 128 moves down from the cam 129 and is out of engagement with

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the support arm 130 "As a result, the compression spring 127 dft" Close valve 126 so that piston 106 and support plate 110 are locked against movement.

The eleder holding device 42 contains an attachment 132 for the tip of the heel and a back support 134 on a support slider 136. The support slider 136 can be adjusted along a guide track 138 (FIG. The stop 132 for the sales group, '? and α la paragraph backing 134 are adapted to dl «, each? present AusfUhrungaform of paragraph 20 in relation to de support slide 136 set and the hold-down device ^! 2 is brought into the required position by means of the screw 140 before an absata nailing process is performed.

When working with soles 22 drawn onto strips 26 and 27, the contact block 60 is inserted into the pig. 1 and 2 brought the position shown, in which it stands upright on the slide 48 of the shoe carrier 40 or is inclined with respect to the slide 48. . Pin 50 (Fig. 6) bit of the Anaohlagplatte 52 is in engagement and the transversely extending flanges Q5 tieu J ^ tßea 82 of the bar spindle 78 rest on the rails 100 »so that the bar lugs 78 against downward movements

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locked let. The operator then places a screw or nail 24 eo in the passage 93 of the lead spindle 78, so that the head of the screw or hail is directed downwards, guides the lead spindle 78 or the sleeve 88 on the lead spindle 78 into the passage 28 d ·· a last 26 or 27 wearing the shoe 22 and lays the Abaati 20 on the AbaatzBitz dee shoe 22 o Since the arm of the angle lever 128, which extends very close to the bottom, rests on the cam 129, the valve 126 is open and the piston 106 becomes and the support plate 110 is held in its hollow position by the compression springs 114. The strip 26 or 27 on the support plate 110 is pressed downwards by the operator against the action of the compression springs 1H until this movement is blocked by striking the heel seat plate 31 at the upper end of the Lels-'senspindel 78 and the sleeve 88 or only the upper end of the locked Leiatenspindel 78 strikes. In this way, the distance between the insole of the shoe 22 and the upper end of the driving tool 38, which executes a driving stroke of an invariable amount, and the height of the top part of the last 26 and 27 are measured.

The operator then moves the shoe carrier 40 towards the rear until the carriage 48 hits the crossbar 54, which determines the nailing position of the shoe 22 will. Before the transversely extending flanges 85 dee feet 82 of the Leistonspindel 78 get onto the rail parts 102 »

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is the downwardly extending arm of the pivot lever 126 has been moved down from the crouch, whereupon the valve 126 is closed by the compression spring 127, the oil is enclosed below the piston 106 and the piston 106 is locked against downward movement. As soon as the flanges 85 of the ! "ufiee 82 into a position overlying the sole parts 102 arrive, the locking of the bar spindle 78 is canceled Thereafter, the support plate 110 forms the support for the shoe 22. When the shoe 22 is placed on the spindle 78 or on the sleeve surrounding the spindle 72 88, the support plate 110 is already in a trough 108 the course of the surface of the heel part of the last 26 or 27 corresponding situation

The activity of the mason then becomes a initiated, not shown foot lever, whereupon the lieder holding device 42 sum pressing the shoe «22 against the Support plate 110 moved downwards and the driving tool 38 then under the influence of the piston 34 for driving the Screw or the Nagele 24 is moved up through the heel seat of the shoe 22 in the heel 20. The bar spindle 78 is only held in height by the tension spring 80 and therefore not exposed to pressure. During the Returning the piston 34 to its lower position moves that Driving tool 38 under the influence of gravity in his

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Starting position back and the hold-down device is moved up to release the shoe 22 «Thereupon pulls * the operator takes the shoe carrier 40 forward and takes the shoe 22 with the heel 20 attached to it out of the machine ο

A hold-down device 142 can be used instead of the hold-down device 42 to attach Louis heels 20 (FIG. 10) to shoes 22 The holding part U4 is interchangeably fastened by means of screws 147 to a holding plate 148, the upper part of which is designed so that it fits into a dovetail-shaped guide track 150 in a support block 152. The support block 152 has an upright, arched part which is in an arched guideway 153 is adjustable in a head piece 154 o The head piece 154 is fastened to a carrier slide I56 corresponding to the carrier slide 136 o

The support slide 156 can by means of a screw 158 in a in the vertical direction movable working head 159 can be adjusted. The screw 158 is rotatable in the working head 159 arranged and screwed into the head piece 154. The angular position of the cold part 144 in relation to the head piece 154

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can be changed by means of a worm 160 (flg. 11), which is rotatably mounted in the head piece 194 and old tlaer Cream stick 164 at the top of the fragblookt »192 in Blngrlff stands.

When the song holding gate 142 is "performing the nailing process with an" abbot 20 on dta unsaddling of the eyeshoe 22 Jn VtHt ₉ prtBt tlt against the auckan and the side surface of the abutment 20 "among other things your against the abutment of the eyehuh 22 suken. BtIa attaching Abeätsen 20 to left and right shoe 22, the holding part 144 can move during its downward movement in the aohwalbeneohwanafUreigen ffUhrungebahn 150 of the Iregblookes 192 »

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Claims (7)

P A! S I 1 A K 8 i b ti C B S ι MojAbeatsaufnagelnsschi «it tin» «« in a shoe carrier containing Xeistsftspindsl to «wearing a last provided with your shoe», with a «hold down device for the sa Abeats fastening the shoe, driving in smocks and smocks a b * footing »itt * l · in the pom bucket Sohrauboier la ~ gel by the Absatssit des 3ohuhee in dtn Absats and «it Driving means * Ur the lisderhsltsTorriohtiiag and the means see below "Collecting the fastening agent, iaduroh gektnnseiobjMt" dad the shoemaker (40) - see both a single last (26) with an extension (28) for sas JN-fixing means (screw or isgel 24) forming the continuation of a pin pin hole (50) sls sooh a ·· Last (27) with a «you of the Leietensapfenauehmung (30) separate passage (28) for the fastening ittsl (Sohraub · or lagel 24) - susätilioh su evr lsl * t «nsplad ·! (78) "it is a ladder-carrying part (support plate 110)" is ▼ on both of which would be moved through the bars (26 or 27) « and are mobile with respect to one another and that the Lsistan * epindel (78) also «is suslndeetene sw« i work sex »« Movable in width on the last carrying case (support plate 110) - 23 - 909816 / 0AA9 BATH ORIGINAL 2 Heel nailing machine according to claim 1 *, characterized in that the shoe carrier (40) contains a slide (48) which is moveable in a guide (46) between a work-piece-bringing position and a working position and on which a guide lens (60) for the last spindle (78 ) is pivotally attached and that means (70 _£ 72, 67 and 68) are provided on the carriage (48) for laying the guide block (60) in one of two different angular positions « 5 c, Abnatos Aufnagelmaschine according to claim 1 and 2, characterized ge ~ indicates that the bar spindle (18) for regulating its axial movements within the guide block (60) accordingly the position of the carriage (48) in the guide (46) with a Foot (82) is provided, which slides on rails (100), part of which Π02) axial movements of the bar spindle (78) within of the guide block (60) * 4, Absa ^. ^ Nailing machine according to claim 2 and 3 »characterized; that the rails (100) for locking the bar spindle (78) is formed against movement in the guide block (60) when the carriage (4B) is in its workpiece mounting position and are arranged η 5 «attachment nailing machine according to claim 1 and 2, characterized s that the bar support part (support plate 110) ■ - 24 909816/0449 BAD ORiGINAt; is movably arranged on a piston (106) provided on a slide (48) and pushed upward by compression springs (V 4): utK Riit is connected to a yentilatength of a valve (126) provided in a cylinder (104) for & vn KoIbPi (106) _O 6th AiBat & ironing machine according to claim 5 »characterized in that a compression spring (127) is provided on the valve stem to close the valve (126) and to block (3es Kolbüi's ίΊ06} against movement in relation to the cylinder (104) 7 Absatsssuf cable machine according to claims 2,5 and 6, characterized in that for the purpose of regulating the locking of the piston (106) against movement in relation to the cylinder (104) corresponding to the position of the slide (48) in the guide (46) means ( 1 <8 _V 129) for controlling & ov effectiveness of the compression spring ί 127) are provided ο 8c Abr.atzaufnagelmaschine according to claim 7 * characterized in that öaJ3 the means (128, 129) for controlling the effectiveness of the compression spring (21) an angle lever (128) connected to the valve rod and a crouch (129) on the guide (46 ) for the Schiitteai (48) and that the angle lever (128) and the cam (129) are designed and arranged so that s5e allow the effective Werdon of the compression spring (127) when the carriage (48) has been advanced to its workpiece attachment position 909816/0449 - 25 - BADORfGINAt 9o JibüatEiiufnagelmaschine according to claim 1, characterized gekennzeichne i that £ 'un) Enlarge _t of the diameter of the bars spindle (78) corresponding to the diameter of the Leistenzapfenausnebraung (30) of the last (26) on the strips spindle (78) Slip = bare sleeve (88 ) is provided and that the bar spindle (78) is designed so that the upper end of the sleeve (88) attached to the bar spindle (78) is at the same height, f! (in the upper end of the iron spindle 078) _o ΙΟ ..- Absat nailing machine according to claim 2 and 9 »characterized» that the slide (48) for locking the sleeve (88) placed on the bar spindle (78) in the working position with, one over a flange provided with a lower end (89) the sleeve (88) fitting and under the action of a spring (92) standing on the lever (90) is provided ο For UNITED SHOE MACHINERY CORPORATION: PATENTANWXLTi DB-ING. H. FINCKE, DIPL.-ING. H. BOHR DlPL-ING. S. STAEGER 909816/0449 BAD OFHQINAL