# US 2014/0190618 A1 · Assembly and a method of manufacturing a green tire and/or an uncured spring > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190618 A1 - Document ID: US20140190618A1 - Status: Published application - Kind: A1 - Application number: 14/238,754 - Filed: 2012-09-27 - Published: 2014-07-10 - Earliest claimed: 2011-09-27 - Assignees: Vmi Holland B .V. - Inventors: Martin De Graaf; Jan Kornelis Grashuis; Johan Gerard Van Beek - Web page: https://patentgrep.com/patent/US20140190618A1 ## CPC - B29D 30/30: Applying the layers; Guiding or stretching the layers during application {(applying tread bands to carcasses B29D30/58; retreading B29D30/54)} - B29D 30/1628: {by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the core axis, to form an annular element (winding and joining, helically in general B29C53/58)} - B29D 30/26: Accessories or details, e.g. membranes, transfer rings - B29D 30/3028: {by feeding a continuous band and winding it helically, i.e. the band is fed while being advanced along the drum axis, to form an annular element (winding and joining, helically in general B29C53/58)} - B29D 30/32: Fitting the bead-rings or bead-cores; Folding the textile layers around the rings or cores - B29D 30/60: by winding narrow strips - B29D 2030/1678: {the layers being applied being substantially continuous, i.e. not being cut before the application step} - B29D 2030/2614: {Bladders associated with the building drum, e.g. bladders used for the toroidal expansion, bladders for turning-up the plies} - B29D 2030/2671: {Holding the layers, e.g. the webs or the plies, in position onto the drum} - B29D 2030/3078: {the layers being applied being substantially continuous, i.e. not being cut before the application step} - B29D 2030/3264: {using radially expandable, contractible mechanical means, e.g. circumferentially spaced arms, spring rollers, cages} - B29D 2030/4468: {Holding the layers} - B29D 2030/481: {Fillers or apexes} - B29D: PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE (making granules B29B9/00; making preforms B29B11/00) ## Abstract The invention relates to an assembly and a method for manufacturing a green tyre and/or a green air spring. The device comprises a template having a shaping surface (2) for placing a tyre component thereon comprising a layer of unvulcanized rubber for the green tyre and/or green air spring. The shaping surface (2) is provided with an attachment surface (9) for at least temporarily retaining at least a leading section of the tyre component. The attachment surface (9) comprises a number of adhering surface sections (3) with non-adhering surface sections (4) placed in between them, wherein the non-adhering surface sections (4) are at least partially receded with respect to the adhering surface sections (3). In one embodiment the attachment surface (9) comprises a substantially saw-tooth-shaped cross-section. ## Claims ### Claim 1 Assembly for manufacturing a green tyre and/or a green air spring, comprising a template having a shaping surface for placing a tyre component thereon comprising a layer of unvulcanized rubber, wherein the shaping surface is provided with an attachment surface for at least temporarily retaining at least a leading section of the tyre component, characterized in that the attachment surface comprises a number of adhering surface sections with non adhering surface sections placed in between them, wherein the non-adhering surface sections are at least partially receded with respect to the adhering surface sections, wherein the attachment surface comprises a substantially saw-tooth-shaped cross-section, wherein the adhering surface sections are situated on or near tips of the saw-tooth and the non-adhering surface sections are situated in or near valleys between the tips of the saw-tooth. ### Claim 2 (canceled) ### Claim 3 (depends on 1) Assembly according to claim 1, wherein the adhering surface sections comprise one or more smooth surface sections, particularly polished surface sections, more particularly surface sections of metal. ### Claim 4 (depends on 1) Assembly according to claim 1, wherein the template is further provided with a release device for releasing at least the leading section of the tyre component. ### Claim 5 (depends on 4) Assembly according to claim 4, wherein the release device composes a number of blow nozzles for blowing least the fading section of the tyre component off from the attachment surface. ### Claim 6 (depends on 4) Assembly according to claim 4, wherein the release device comprises a displacement device for displacing at least the attachment surface. ### Claim 7 (depends on 6) Assembly according to claim 6, wherein the displacement device is adapted for at least displacing the attachment surface with respect to the shaping surface. ### Claim 8 (depends on 6) Assembly according to claim 6, wherein the displacement device is adapted for at least displacing the attachment surface in a direction substantially to the attachment surface and/or the layer of unvulcanized rubber. ### Claim 9 (depends on 6) Assembly according to claim 6, wherein the displacement device is adapted for at least displacing the attachment surface in a direction substantially perpendicular to the layer of unvulcanized rubber. ### Claim 10 (depends on 1) Assembly according to claim 1, wherein the template comprises a drum having an outwardly oriented shaping surface, wherein the attachment surface comprises a band with the number of adhering surface sections. ### Claim 11 (depends on 10) Assembly according to claim 10, wherein the band extends substantially parallel to a centre line of the drum. ### Claim 12 (depends on 10) Assembly according to claim 10, wherein the drum is provided with a set of arms, that extend axially wherein at a first free outer end each arm is provided with a first turn-up means, particularly a turn-up roller, and at an opposite second outer end is hinged to an axially slidable arm support, wherein near its first outer end each arm is provided with a support member for supporting the tyre component, wherein the support member of at least one of the arms comprises the attachment surface. ### Claim 13 (depends on 12) Assembly according to claim 12, wherein the support members can be displaced in an axial direction of the drum. ### Claim 14 (depends on 10) Assembly according to claim 10, wherein the drum is provided with a bladder of which a part that is situated outward with respect to the drum forms at least a part of the shaping surface, wherein the part of the bladder situated outward with respect to the drum comprises the attachment surface. ### Claim 15 (depends on 10) Assembly according to claim 10, wherein the number of adhering surface sections with non-adhering surface sections placed in between them, are placed consecutively in a substantially axial direction of the drum. ### Claim 16 (depends on 15) Assembly according to claim 15, wherein the attachment surface comprises the substantially saw-tooth-shaped cross-section in a substantially axial direction of the drum. ### Claim 17 (depends on 1) Assembly according to claim 1, wherein the template comprises a disc having a substantially circular shaping surface for placing the tyre component thereon. ### Claim 18 (depends on 17) Assembly according to claim 17, wherein the attachment surface comprises a band with the number of adhering surface sections, wherein the band extends substantially radially with respect the circular shaping surface. ### Claim 19 (depends on 17) Assembly according to claim 17, wherein the number of adhering surface sections with non-adhering surface sections placed in between them, are placed consecutively in a substantially radial direction of the circular shaping surface. ### Claim 20 (depends on 19) Assembly according to claim 19, wherein the attachment surface comprises the substantially saw-tooth-cross-section in a substantially radial direction of the circular shaping surface. ### Claim 21 (depends on 1) Assembly according claim 1, further comprising an extrusion device for extruding a strip of an unvulcanized rubber, wherein the shaping surface of the template faces the extrusion device, and wherein the extrusion device and the template can be displaced with respect to each other for placing the strip of the unvulcanized rubber on the shaping surface for forming the layer of unvulcanized rubber of the tyre component. ### Claim 22 (depends on 21) Assembly according to claim 21, wherein the template comprises a drum having an outwardly oriented shaping surface, wherein the attachment surface comprises a band with the number of adhering surface sections, wherein the drum and the extrusion device can be displaced with respect to each other for winding the strip of the unvulcanized rubber around the drum into the layer of rubber material. ### Claim 23 (depends on 21) Assembly according to claim 21, wherein the template comprises a disc having a substantially circular shaping surface, for placing the tyre component thereon, wherein the disc and the extrusion device can be displaced with respect to each other for on the disc arranging the strip of unvulcanized rubber into a layer of rubber material. ### Claim 24 (depends on 1) Method for manufacturing a green tyre or a green air spring by means of an assembly according to claim 1, wherein the method comprises the following steps: placing the tyre component, at least with its layer of unvulcanized rubber on the draping surface of the template, wherein the leading section of the tyre component of the unvulcanized rubber is placed on the attachment surface for at least temporarily retaining the tyre component, and when the tyre component has been placed, providing a relative displacement between the layer of unvulcanized rubber and the attachment surface for releasing the tyre component. ### Claim 25 (depends on 24) Method according to claim 24, wherein the relative displacement is carried out substantially parallel to the attachment surface and/or the layer of unvulcanized rubber. ### Claim 26 (depends on 25) Method according to claim 25, wherein the relative displacement is carried out along with an ascending inclined slope of the saw-tooth-shaped cross-section. ### Claim 27 (depends on 24) Method according to claim 24, wherein the assembly further comprising an extrusion device for extruding a strip of an unvulcanized rubber, wherein the shaping surface of the template faces the extrusion device, and wherein the extrusion device and the template can be displaced with respect to each other for placing the strip of the unvulcanized rubber on the shaping surface for forming the layer of unvulcanized rubber of the tyre component, wherein the method further comprising the steps of: extruding a strip of an unvulcanized rubber material from the extrusion device; during extruding placing the strip on the shaping surface of the template, wherein the leading section of the strip of the unvulcanized rubber is placed on the attachment surface for at least temporarily retaining the strip; and further arranging the strip of the unvulcanized rubber on the shaping surface for forming the layer of unvulcanized rubber of the tyre component. ### Claim 28 (depends on 1) Assembly according to claim 1, wherein the sawtooth shape comprises alternately inclined ascending flanks and steep transitions from the one to the next saw-tooth, wherein at least the tip of the inclined ascending flanks of the saw-tooth form the adhering surface sections and the steep transitions and/or the parts of the inclined ascending flank adjacent to the steep transition form the non-adhering, receded surface sections.