Method for fabricating drive belt
AssigneeBando Chemical Industries, Ltd.
InventorsShinji Takahashi, Masahide Naya, Takehiro Hayashi, Kentarou Sanematsu
Life of this patent
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Abstract
A method for fabricating a drive belt includes: a cylindrical rubber formation step of forming a cylindrical rubber by roundly joining an uncrosslinked rubber sheet (31); and a mold covering step of covering a cylindrical mold with the cylindrical rubber formed in the cylindrical rubber formation step. A mark hot-transfer sheet (35) is adhered by hot pressing to the juncture of the cylindrical rubber to cover the juncture on the inside of the cylindrical rubber.
Claims8
A method for fabricating a drive belt, comprising
- a cylindrical rubber formation step of forming a cylindrical rubber by roundly joining an uncrosslinked rubber sheet to form a juncture and
- a mold covering step of covering a cylindrical mold with the cylindrical rubber formed in the cylindrical rubber formation step, and
- a sheet hot-pressing step of adhering a mark hot-transfer sheet including a resin film on which a mark has been placed over the juncture of the cylindrical rubber by hot pressing so that the mark hot-transfer sheet covers the juncture on the inside of the cylindrical rubber,
- wherein in the mold covering step, the cylindrical rubber is formed so that the inner peripheral length thereof is 0.25% to 5.00% shorter than the outer peripheral length of the cylindrical mold, and the cylindrical mold is covered with the cylindrical rubber with the mark hot-transfer sheet provided over the juncture of the cylindrical rubber in order to mechanically reinforce the juncture.
A method for fabricating a drive belt, comprising:
- an uncrosslinked rubber sheet forming step that includes cutting a continuous uncrosslinked rubber sheet into a plurality of uncrosslinked rubber sheet sections and joining the edges of the plurality of uncrosslinked rubber sheet sections to form a single uncrosslinked rubber sheet having a first juncture;
- a rubber sheet hot-pressing step of adhering a mark hot-transfer sheet including a resin film on which a mark has been placed over the first juncture of the single uncrosslinked rubber sheet by hot pressing so that the mark hot-transfer sheet covers the first juncture;
- a cylindrical rubber formation step of forming a cylindrical rubber by roundly joining the single uncrosslinked rubber sheet to form a second juncture;
- a cylindrical rubber hot-pressing step of adhering a mark hot-transfer sheet including a resin film on which a mark has been placed over the second juncture of the cylindrical rubber by hot pressing so that the mark hot-transfer sheet covers the second juncture on the inside of the cylindrical rubber, and
- a mold covering step of covering a cylindrical mold with the cylindrical rubber formed in the cylindrical rubber formation step, wherein the cylindrical rubber is formed so that the inner peripheral length thereof is 0.25% to 5.00% shorter than the outer peripheral length of the cylindrical mold, the cylindrical mold is covered with the cylindrical rubber with mark hot-transfer sheets provided over the first and second junctures in the cylindrical rubber in order to mechanically reinforce the junctures.
Dependencies are inferred from the claim text.