JPS63137808A - Molding method for pneumatic tire - Google Patents

Abstract

PURPOSE:To mold easily a tire of which a name and mark and molded at low cost, by a method wherein inversion and copy processing of letters, marks, etc., are performed on a flexible plate and the plate is fitted attachably and detachably to the inside of a vulcanizing mold of the tire. CONSTITUTION:When a user buying a tire writes a letter such as user's own handwriting name and a mark 2, which are desired to put on the tire, on a sheet 1 such as a purchase slip, the letter and mark 2 of both sides of the sheet 1 are inverted by signal-treating them with a computer 4. Then an inverted letter and mark 2' are processed on the surface of a flexible plate 6 through copying by commanding a signal of the letter and mark 2 inverted by the computer 4 to NC (numerical control) processing equipment 5. The flexible plate 6 is fitted attachably and detachably to the inside of a vulcanizing mold 7 corresponding to a side face of the tire with screwing or an adhesive agent by turning a copy-processed surface into a surface side. When vulcanization molding of an unvulcanized tire is performed by making use of the vulcanizing mold 7, the tire 8 on the side face of which the letter and mark 2 are molded additionally is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a method of molding a pneumatic tire in which a name, mark, etc. are additionally molded on the side surface of the tire.

[Prior art]

BACKGROUND ART Conventionally, many types of tires have been produced depending on the purpose and required performance, but the same tires are produced in large quantities according to each tire vulcanization mold. However, as customer preferences have become more diverse in recent years, there has also been a demand for tires that are unique to individuals with their name or specific mark affixed to the side surface of the tire, such as a name embroidered on a suit. It is possible that it will come.

However, if a mold was manufactured for each individual tire, the cost would be high and the tire would be extremely expensive.

[Purpose of the invention]

An object of the present invention is to provide a method for molding a pneumatic tire that can easily produce, at low cost, a tire with a name, mark, etc. additionally molded according to an individual's wishes as described above.

[Structure of the invention]

The present invention achieves the above object by printing characters on a flexible plate.
Marks, etc. are reversely copied, and the processed flexible plate is removably attached to the inner surface of a tire curing mold with the processed surface facing up. It is characterized by being vulcanized and molded.

Hereinafter, the present invention will be explained with reference to the flow shown in the drawings.

In the figure, first, in Step I, the customer purchasing the tire writes his or her own handwritten name or other characters on sheet 1 of the purchase slip or the like that he or she wishes to attach to the tire.

Enter mark etc. 2. Next, as in step (2), the characters, marks, etc. 2 on this sheet 1 are read by, for example, an image sensor 3, and then signal processed by a computer 4 to reverse the front and back sides. If the tire store and the tire manufacturer are geographically separated, the sheet 1 from step (2) to step (2) may be sent by facsimile, mail, or the like.

Next, as in steps ① to ②, the signal of characters, marks, etc. 2 reversed by the computer 4 is commanded to the NC (numerical side '4ra) processing device 5, and the surface of the flexible plate 6 is processed by this NC processing device. Copy and process the reversed characters, marks, etc. 2.

The material used for the flexible plate 6 is not particularly limited as long as it exhibits flexibility when in the plate state, but metals include soft metals such as aluminum, and resins include polyimide. Heat-resistant resins such as Further, the copying method is not particularly limited as long as it can form letters, marks, etc. in an uneven shape on the flexible plate 6, but for example, drilling, etching, sandblasting, electric discharge machining, etc. are preferable. It's a method.

As shown in step ■, reverse characters, marks, etc. 2'
The processed flexible plate 6 is then attached and detached with screws or adhesive to the inner surface of the vulcanization mold 7 corresponding to the tire side surface with the copied surface facing up, as in step (2). Can be installed freely. Next, as in step (■), when an unvulcanized tire is vulcanized using this vulcanization mold 7, a pneumatic tire with letters, marks, etc. 2 added to the side surface of the tire is formed as in step (■). Tire 8 is obtained.

According to the above-mentioned manufacturing method for pneumatic tires, plates with copied characters, marks, etc. can be removably attached to the 4-way vulcanization mold, so plates with different processed characters etc. can be attached as appropriate. By replacing the mold, it is possible to mold many types of tires using one tire curing mold.

Further, since the plate is flexible and has high bendability, it can be attached in close contact with any tire size vulcanization mold having a different inner curvature.

Therefore, the same plate can be used regardless of the tire size desired by the consumer.

〔Effect of the invention〕

As described above, according to the present invention, characters, marks, etc. are copied in reverse on a flexible plate, and the copied flexible plate is removably attached to the inner surface of a tire curing mold. Since vulcanized tires are vulcanized and molded, tires with different names, marks, etc. can be easily molded at low cost regardless of tire size.

[Brief explanation of the drawing]

The figure is an explanatory diagram showing, in flow form, an example of the pneumatic tire molding method according to the present invention. 1... Sheet, 2... Characters, marks, etc., 2'.
・・Reversed characters, marks, etc. 3・・Image sensor −
14...Computer, 5...NC processing device, 6.
...Flexible plate, 7...Mold for tire curing.

Claims (1)

[Claims] Characters, marks, etc. are reversely copied onto a flexible plate, and the processed flexible plate is removably attached to the inner surface of a tire vulcanization mold with the processed surface facing up. A method for manufacturing a pneumatic tire, which comprises vulcanizing an unvulcanized tire using a mold.