Claims
- 1. A method of manufacturing a rubber tire in which a reinforcement thread is applied on a support, the surface of which is a building reference for the inner surface of the tire, the reinforcement thread applied on the support being held on the support by adherence, comprising laying the reinforcement thread on the support by displacing a guide means in the space over the trace which the thread will have after it has been wound on the support, said guide means being in guiding relationship with slippage on the thread, the laying of the reinforcement thread being carried out by imparting to said guide means a movement permitting the winding of the thread on the support from one side to the other of the support and then winding back so that the thread forms adjacent hoops on the support, maintaining the reinforcement thread on the support as the reinforcement thread is deposited thereon by adherence, continuation of the movement with, from one winding to the next, relative circumferential displacement between the support and guide means by an amount corresponding to the laying pitch of the thread on the support, pressing with pressing means the thread against the support at each edge of a hoop during the side-to-side movements to adhere the thread to the support, said pressing taking place during the movement of the guide means after each change in direction of the guide means, and relieving the pressing of the thread against the support before the return of the guide means with thread to be pressed against the support after the relative circumferential displacement.
- 2. A method according to claim 1, characterized by the fact that the reinforcement thread laid is the carcass thread forming radial hoops on the support, and by the fact that the guide means carries out a reciprocating movement between the regions corresponding to each bead of the tire.
- 3. A method according to claim 2, characterized by the fact that the method comprises n carcass-thread laying passes around the circumference of the support, each pass covering 360.degree. around the circumference of the entire support.
- 4. A method according to claim 3, characterized by the fact that the radial hoops on a pass are laid according to a pitch P and on two successive passes the threads are laid with a circumferential offset corresponding to P/n.
- 5. A method according to claim 1, characterized by the fact that the laying pitch of the thread is variable.
- 6. A method according to claim 5, characterized by the fact that the variation of the pitch is sinusoidal.
- 7. A method of manufacturing a rubber tire in which different components, including an adhesive coating and a reinforcement thread, are applied at the place required by the architecture of the tire on a support the surface of which is a building reference for the inner surface of the tire, the reinforcement thread applied on the support being held on the support by adherence, said method comprising laying the reinforcement thread transversely back and forth across the support by displacing a guide means in the space over the trace which the thread will have after it has been wound on the support, the guide means being in guiding relationship with slippage on the thread, the laying of the reinforcement thread being carried out by imparting to said guide means a movement which causes it to move continuously in a closed loop with a first portion of the closed loop being from one side to the other side of the support and a second portion of the closed loop being from said other side back to said one side, the guide means moving in said closed loop across the support in one direction and then reversing direction and returning across the support in the opposite direction the first portion of the closed loop being superposed relative to the second portion, and in which, due to the fact that the thread remains applied to the support by adherence on said coating, the movement of the guide means back and forth across the support assures the feeding of the thread from a source making it possible to feed the reinforcement thread upon demand and maintaining the reinforcement thread on the support by adherence all along its length as the reinforcement thread is deposited thereon, the support moving circumferentially with respect to the guide means, between a movement of the guide means and the next opposite movement by an amount corresponding to the laying pitch of the thread.
- 8. A method of manufacturing a rubber tire in which different components, including a reinforcement thread, are applied at the place required by the architecture of the tire on a support the surface of which is a building reference for the inner surface of the tire, said method including applying the reinforcement thread on the support to form contiguous hoops in the following manner:
- laying the thread by applying it by adherence on the support at a starting point corresponding to the edge of a hoop,
- continuously displacing a guide means in guiding relationship with slippage on the thread over the support along an arcuate trajectory from the starting point to a point of arrival corresponding to the other edge of the same hoop,
- maintaining the placement of the thread on the support all along its length by adherence to the support,
- pushing and holding with pushing action the thread against the support at the arrival point to cause the thread to adhere to the support while the guide means continues its movement relative to the support and then relieving the pushing action when the thread is adhered to the support,
- repeating the above operations alternately from left to right and then from right to left over the support, displacing the support with respect to the guide means by an amount corresponding to the laying pitch between two alternate displacements of said guide means.
Priority Claims (1)
Number |
Date |
Country |
Kind |
92 09256 |
Jul 1992 |
FRX |
|
Parent Case Info
This application is a continuation of application Ser. No. 08/087,211, filed on Jul. 2, 1993, now abandoned.
US Referenced Citations (10)
Foreign Referenced Citations (2)
Number |
Date |
Country |
390762 |
Jun 1990 |
ATX |
2583399 |
Dec 1986 |
FRX |
Continuations (1)
|
Number |
Date |
Country |
Parent |
87211 |
Jul 1993 |
|