DE1579257A1 - Building drum for pneumatic vehicle tires - Google Patents

Description

"Building drum for pneumatic vehicle tires The invention relates to a @Building drum for the flat construction of pneumatic vehicle tires, especially a high shoulder drum, composed of radially and axially foldable segments, which consist of two side parts and a bridge part and each of which has an outer segment with its obliquely inwardly directed abutment surfaces on the obliquely outwardly directed abutment surfaces @ each of an inner segment adjoins, with parallel Y, ur Lchse of the building drum arranged, en, slidably mounted in lugs on the inside of the side parts Guide rods uni with a lug engaging on the inside of the segments Actuator. The well-known @aufbautrommel (DAS 1 218 146) will collapsed and exposed by working cylinders that attack a bracket, which is attached to the inside of the bridge part 0 The side parts of the segments s5rd with inclined rods in inclined guides. When transferring of the segments from the working position to the folded position must be a considerable force was applied to tear loose from the built-up tire. In addition comes that the frictional force must be overcome, the coexistence of the Counteracts segment outer parts under the bridge parts.

In the known building drum, the frictional forces are therefore special great because the actuating cylinders attack the bridge parts and because of that the sliding movement of the side parts of the segments by the one acting on the bridge part Radial force must be effected.

With the invention, the kinematics of the release movement of the Sesmente of the built-up tire improves the friction between the segment parts and occurs in the mechanism of the device according to the invention is opposite to that corresponding friction in the known device is considerably reduced. Of the The actuation mechanism is simpler and simpler in the case of the provision according to the invention more robust than the known device.

Another advantage of the new building drum can be seen in the fact that that it can be changed in the simplest way if a tire of a different width is to be built. The known device allows just building of tires of this width.

The invention consists in that the actuating cylinder on the @eiterteilen attack the segments. According to the invention, this is made possible by known ones Lugs on the inside of the outer parts of the blessing, on which the actuators attack and in which the sliding lines are smoothly guided, which at a @@ c @@@ en are rigidly attached to the inside of the vapors. The Ver @@ ellkuaft to collapse the drum attacks the outer parts of the segments and the bridge parts run loosely with, because @@ e are only coupled.

The actuators are pairs of two arms @ e @ el @, the pivot pin of which is carried by the drum shaft. @@@@@@@@@ @@@ Einkla @ pmovement the outer parts of the @@@@ en @@@@@@@@@@@@ are adjusted in the axial direction. Against End k @@@@@@@@@@@@@@@ be @ egung for the outside @ hurry weighing in radial @@@@@@@@@@@ The advantage here is that the detachment @@ @@@@@@ eil @ @ e @ Se @ mente from the shoulder of the tire has a @@@@@@@@@@@@@@@@@@ Vorra @ g before releasing the bridge parts.

De @@@ die @o @@@@@@@ der Kebel other tours will become redundant - @@ @@@ @@@@@@@@@@@@@ redused.

@@@ @ @@@@@@@@@ @@@ as your free E @@@@@@@ @@@@ @ enbol @ en, which in @@@@@@@ vo @ @@@@@@@@ the drum shaft adjustable backdrops @@ guided and the pivot pins of the levers are in a predetermined position on the shaft held. Preferably, the scenes are peripheral parts of a sliding ring, the w @ rfl driven by a sliding sleeve that can be adjusted along the drum shaft.

According to the invention, the device is designed for folding, that on both sides of the drum a part imaginable in the axial direction for locking the Rotating movement of the sliding sleeve is arranged that the sliding sleeves with a hollow actuating spindle with right-hand and left-hand thread, they interlock axially and shiftable on the Tro @@ elwelle bearings, and there @ bearing blocks as a carrier a sliding guide for the hinge pins of the Rebel in grooves in the lantern of the sliding bushes to have. The device can also be set up so that both sides of the Drum an axially adjustable part of the rotational movement the sliding bridge augeer @ net is that effi'r'e 3IolisT "" "- 1].; o- &:.% T (-, C,!." - o.! - f .2 D.e- '1- ,, bearings, and the sliding bushes in opposite directions form, and that bearing blocks as carriers @@@ @@ e joint brackets of the lifting in @ u @ en im l @ ntel @@@ sliding bushings have a sliding guide. In the cycle of building a tire keep the threaded hollow spindle and the bearing blocks @@@ the pivot pins of the Nebol Their setting depends on the drum @ @@ enebore X. @on the longitudinal adjustment of the sliding sleeve the link bolt is forced to the free end of the lever on the curve in the Backdrop to run along. According to the direction of movement of the The levers are drawn in or raised along the curve of the backdrop and fold the drum segments together or turn them outwards. Here remains the pivot pin of the lever in the bearing blocks relatively in its place.

In one embodiment of the invention, the sliding sleeve @ and two flanges, each of which supports the support brackets, with a wedge- ab - r-ui '- aus'. es-.sia; d. er e -ruflr% :.

Along the periphery of the sliding bushes, scenes with different ones change Guides for the link bolts from each other.

This ensures that the kissing segments collapse the inner segment follow.

Un to prevent that the lever from the segments when rotating the drum are pulled outwards as a result of centrifugal force, are an additional @protection Bearing blocks for the pivot pins of the levers with stop lugs for the opening movement the mist provided.

An advantageous embodiment of the invention is that the flanges of the support brackets with an axially non-adjustable relative to the drum shaft Adjusting bushes with right-hand and left-hand threads are screwed. This measure allows The drum can be adjusted to different widths by turning the steep bifurcation twisted.

An exemplary embodiment is shown in the drawing.

There are: FIG. 1 a side view, partially in section, FIG. 2 a segment in an oblique view, FIG. 3 an inside segment in an oblique view, FIG. 4 a partial view of the execution @ A @ beitgstellung, partially in section, Fig. 5 the same view to Boginn of the @@ app movement, FIG. 6 the same view during the folding movement, Fig. 7 the same view at the end of the folding movement Outer segments with 1, the inner segments @@@ 2, the associated nebulae with 3 and 4, the shaft of the drum @@@@@, the actuating hollow spindle with 6, the sliding axis with 7, the link ring with 8, the individual scenes with 9 or 9a, @b, the bearing blocks for levers 3, 4 with 10, the link bolts with 11 and the pivot pins of the levers marked with 12, 13 and 14 @ et. Located on the inside of segments 1 and 2 little claws 14 and 15 with Cahlen 17, 18, on which the levers 3, 4 by means of the hinge pin 13, 14 are hinged. The lugs contain bearing bores 19 for receiving of the slide bars 20.

4-7 it can be seen how the drum is adjusted to a desired width can be adjusted. For this purpose, the adjusting sleeve 23 is used, which is not shown by Slots in bridges 1c or 2c with a tool to hand is that engages at a hexagon or a hole in the adjusting sleeve 23 and The @ tellbüchse 23 has an internal thread, the @it of the @ external thread of the T @ ägerring 24 of the bearing blocks 10 to - 1 '1'-wear the @@@@@@@@@@ en, is possible the @ ittene @ ene K of the drum by the same amount @ to the outside or to the inside axially verstalli can be. At the same time, the joints 12 of the @ebel 3, 4 and this shifted itself by the same amount and the Mulissen F: must accordingly be adjusted.

3 ?. in? 2r; -dI-a] .Cr ffi] ict't - '. u-.'.,? .1 - r-, te .- r - '?? t-C -O3n - e Dr-'i.c, -. C, u, r ii '-, i'r -? - Y el!? -,? --qc? 5 T .. '1-erbc'. 'S1-e TC - - - i-b 5- t1'itzn-s.'cen b ". '?!. J-n- @ chla @ nasen @@ for @in @eberl @, 4 provided.

@ the on @ lit position, the levers are fixed, @@ the Kuli @ sonbel @@@ ll @ i @ @ @ chli @@ 21 the scenes @@@@@@@.

@@ e @@ o with @ Fig. 1 @@@@@ @@ Tro @@ el also @@@@@. 4 @ your @@@ ei @@@@@@@@@. She is @ da @ u @ ch @@ the position @highed for the @ lis @@ u @@@ 8 law. one so @ nor Nul @ ssen @ at ste- @ ender @@@@@@ e from one @ a @ el en your position @estgchalten wor --.- r ,, '-' - r '(? 1 ij: t! (1?., 0 - - - .9' () 3): - 1 - (-,] C; .0? ?, <:, qt \ fl? J "& that the Ve @ se @ iebel @ ch @@ 7 is @n its outermost position to the center of the pane, i.e. moved into their outermost inner position. The Zulissenbolzen 11 comes to Appendix in the lower left so "c the L? Ulissenb & brn, l: L-qr Jie V '& jel ,! - are v ("lTfIß '& ..- ,. aligns and represent the outer parts of the outer and inner segments 1a, 1b, 2a, 2b in their outermost radial and axial position. @@ @ie Nulissen 9 are different and appropriately shaped, put the Segments 2 with a follow-up movement to 1 @ segments 1, with the sloping edges 2d cover the boxes 1d.

The lugs 25 are adjusted so that the levers 3, 4 tellun in this. cling to them tightly.

The centrifugal force that strives when the drum runs, the rebel 3.4 to pull outwards, is intercepted at the chases 2 @.

S'Cls.j? ICT - & 1 - it is tjp. en.ne -tochs -. chult-ertror-.r-.o., .1 the narcass edges are heruri, E'csChl, en, the.; - ulstrin £ 'c ei ---: & 5 n -9.er lt'i ».sr fl -.' i '? s, l -'--- ci, 1 e] o--' - die: W.r, d-or der ..arra - .. ep 1.v.r- do ~ C '---' ir'c bcji''el --- 't and possibly placed on the carcass parts, the egg Tropnelu '; .- i: tan <g auF,;, -' whether aut -n-5-nd 'In Fig. r the position of the parts of the drum and the adjustment mechanism Approved in the initial phase of the app movement.

Compared to Fig. 4, the shift axis 7 has been rotated to the left, so that now the Kulissesbolser 11 in the Rechlen Unteron corner the Eulisse 9 comes to attack. The actual lever movement has not yet taken place begennen.

T "i'Inc, .j'Äe.scieric, teTTunE 11rd in J1i. Leze- '? ~ Rt \ Jird dIc. \ Tcrschiebebüchse 7 with the sliding ring 3 and the scenes - further axially to the outside moved, then the backdrop @ forces the slide bolt 11 on the right wall climb up the guide whereby the levers 3, 4 with the segments 1 and 2 radially be swiveled inwards. This pivoting movement is ideally used to release the outer segments and the back parts of the carcass parts resting against them.

Wern the segments shown in Fig. 7, their folding movement have finished, they are held in the collapsed position in that the link bolt 11 is now locked immovably in the slot 21 of the link 9 is. There is now nothing to do with lifting the carcass from the folded drum more in the way.

During the folding movement, the bridge parts 1c, Lc remain in contact on the outer surface of the segment parts 1a, 1b, 2a, 2b, the outsides of the segment parts 1a, ib, 2a, 2b on the inner surfaces of the bridge parts 1, 2c along one another slide. While in the known device described above, the adjusting force attacks on the parts of the bridge and from there on the outside parts comes into effect, the opposite is true for the device described above the case. The bridge parts are never taken along without great effort, which means the distribution arises that the frictional forces during the sliding movement between the outer parts and the bridges are not affected.

The slide rods 20 are anchored in the lugs 22. @ during the Adjustment movements move the sliding elements 20 in the bearing bores 19 of forks 17, 18.

The adjustment of the sliding sleeve 7 compared to the Nohl @ gindel can but done hydraulically. Lan can use parts 6 and 7 as a piston and Form cylinder. The @ergtstellung @@@ also on electrical or on another carry out mechanical @ege.

The be1oa: -ntc Verrie'1i - {- un; crlau '..- t ai'. fi.eht - ::% e & - -Ll .1 '- and the same drum on different @ e @ fenbrei @ en. That will be at the drum mol according to the invention by adjusting the sliding pieces 10, whose to en F flange 24 with a spline on the spline 26 of the sliding sleeve 7 slides into the fi. 4 - 7 are, for the sake of special understanding, the levers 3 and 4 and segments 1 and 2 drawn on top of each other while in reality alternating: lying one behind the other along the circumference of the drum.

Each of the @egnente consists of a left segment 1a, 2a, einc-C ' ra.b --'-- Se -'----- a -.--. t $ ö, nr »ebier F ::: 'üc'Cc le-, 2c db-.?.?h die- c: ie ?? td-e.-r % r --nenthW.l :: Cteri- nit.eiria? .n? - - <- c-unden 5-jr '.'. : o'.r-qe ?? ith'-air and bridges of the outer segments 1 have inwardly beveled contact edges 1d, Segments and bridges of the inner segments 2 have ab @ christened contact edges 2d. The bevel has - @inn to wash the surface of the drum @ugenles, when the Seg @@@ te are in the working position. From the bevel results also the network, the inner segments run forward when folding the drum and to follow @ en @ the outer segments.

@echalk @@@@ both @ie Hebel 3,4 and @ie Hulissen 9, 10 for the @ outer and @@ nesegments 1, 2 of @@ terschte @ licher @orm.

In FIGS. 2 and 3 it is shown that the Cabeln 17 are shorter than the Gelsk 1 @ der @@@ k @@ en 1 @. In Fi @. @@@ see also that the Se @@ e @ e 1a and 1 @ as well Ra @@ @@ ni @@@@@@@@ @@@@@ Gleitstan - @@ @@ @e @@@@@@@@ are the means @ of a buck 22 and of the Stif - @@@ @@ a @en @@@@@ 1c and 2c gekalter @@@@@. Through attacks on the outside (not shown) and by the stop of the Sogmente 1 resp.

@@@@ @e @@@@@@@@ 2 @ it is @@@ that no side panels are in do not detach a @tell from the @ corner.

Claims (11)

P a t e n t a n s p r ii c h e: 1) Build-up drum for flat build-up of pneumatic vehicle tires, especially high shoulder drums, composed of at the same time radially and axially retractable segments consisting of two side parts and a bridge part exist and each of which has an outer segment with its obliquely inwardly directed Abutment surfaces on the inclined outwardly directed abutment surfaces each of an inner segment adjoins with lugs arranged parallel to the axis of the building drum the inside of the side panels can be moved 3mounted guide rods and with an actuator engaging the inside of the segments, d a -d u r c h g e k e n n n z e i c h n e t, 1 that the actuators on the side panels (1 a, Ib, 2 a, 2b) attack the segments (1, 2). 2) building drum according to claim 1, g e k e n n z e i c h n e t d u R c h known Böckohen (i, 16) on the inside of the segment outer parts (la, 2a, Ib, 2b), on which the actuators engage and in which the slide rods (20) are slidably guided on a bracket on the inside of the bridges (10, 2c) are rigidly attached. 3) building drum according to claims 1 and 2, d a d u r c h g e k It should be noted that the actuators are pairs of two-armed levers (3, 4), the pivot pins of which are carried by the drum shaft (5). 4) building drum according to claims 1 and 2, d a d u r c h g e k It is noted that the levers (3, 4) have link pins at their free ends (11) wear in the opening of along the drum shaft (5) adjustable scenes (8) are guided, and that the pivot pin of the lever in a predetermined position are held on the shaft (5). @) Building drum according to claim Jk, d a d u r c h g e k e n n -z e i c h @ e t that the scenes t9) are peripheral parts of a sliding ring (8), the carried by a sliding sleeve (7) adjustable along the drum shaft (5) will. F Building drum according to claims 4 and 5 d a d u r c h g e It is not shown that on both sides of the drum there is an axially adjustable Part is arranged to block the rotational movement of the shifting bushes (7), that the sliding sleeves (7) with an actuating hollow spindle (6) with right and Left-hand threads are screwed, which cannot be moved axially on the drum shaft (5) stored, and that bearing blocks (10) as a carrier for the hinge pin (12) the Lever 3), 4) a sliding guide in grooves (26) in the @@@ tel of the sliding bushes (7) to have. 7) building drum according to claims 4 and 5, d a d u r c h g e k e n n z e i c h n e t that on both sides of the drum an adjustable in the axial direction Part to block the rotational movement of the sliding book @ e (7) is arranged, that a hollow spindle, which is axially immovable on the drum shaft (5), and the sliding sleeves form opposing piston-cylinder units, and that bearing blocks (10) as a carrier for Qie Gelen @@ olzen (12) the levers (3, 4) in grooves (26) in the mast the sliding sleeve (7) have a sliding guide. 8) building drum according to claims 6 and 7, d a d u r c h g e k e n n z e i h n e t that the two sliding bushings (7) that hold the bearing blocks (10) wear, and. two flanges (24) with a serration (26) brought together are. 9) building drum according to claims 1-8, d a cl u r c h g e k e It is noted that scenes (9) with different guides over the Link bolts (11) follow one another and. are designed so that the outer segments (1) When folding in, make a downward movement towards the inner segments (2). 10) building drum according to claims 1-9, d a -d u r c h g e k It is noted that the bearings of the bearing blocks (10) for the hinge pins (12) he lever (3, 4) wear stop lugs (2C) for the opening movement of the lever (3, 4). 11) building drum according to claim 5, d. a d u r c h g e -k e n n fl z e i c h @ e t that the flanges (24) of the bearing blocks (10) with Bner opposite the Drum shaft (5) axially non-adjustable adjusting sleeve (23) with right-hand and left-hand thread are screwed.