초록 ▼

A mold for in-mold decorating that includes a stationary mold member and a movable mold member through which a decorating film can be passed. At least one of the mold members includes a cavity-forming block with molding cavity configured to receive a design pattern of the decorating film, a dieset,

A mold for in-mold decorating that includes a stationary mold member and a movable mold member through which a decorating film can be passed. At least one of the mold members includes a cavity-forming block with molding cavity configured to receive a design pattern of the decorating film, a dieset, and engaging portions for mounting the cavity-forming block on the dieset. Clamping-force receiving portions are located around the cavity-forming block such that a clamping force is not applied to the decorating film when the mold members are joined.

대표청구항 ▼

The invention claimed is: 1. A mold for in-mold decoration, comprising a stationary-side mold member and a movable-side mold member for receiving a roll-type decorating film, wherein a first one of said mold members comprises: a cavity-forming block having a cavity configured to receive a molten re

The invention claimed is: 1. A mold for in-mold decoration, comprising a stationary-side mold member and a movable-side mold member for receiving a roll-type decorating film, wherein a first one of said mold members comprises: a cavity-forming block having a cavity configured to receive a molten resin and a design pattern of the decorating film to mold a molded article; and a dieset for mounting said cavity-forming block, said dieset comprising: a smooth mounting face which faces a second one of said mold members and overlaps with a passing region through which the decorating film is to be passed; and a clamping-force receiving portion shaped and arranged to allow the roll-type decorating film to pass entirely and continuously through the passing region between said mold members when said mold members are in a joined position, said clamping-force receiving portion arranged around said mounting face substantially symmetrical with respect to a center line of said first one of said mold members along a passing direction of the decorating film, so as to be outside of the passing region of the decorating film; wherein one of said dieset and said cavity-forming block includes an engagement recess portion, and the other one of said dieset and said cavity-forming block includes an engagement protruding portion, said engagement protruding portion and said engagement recess portion being shaped and arranged to engage each other so as to position said cavity-forming block at said mounting face of said dieset and mount said cavity-forming block on said dieset. 2. The mold for in-mold decoration as recited in claim 1, wherein one of said engagement protruding portion and said engagement recess portion is provided on said mounting face of said dieset, and the other one of said engagement protruding portion and said engagement recess portion is provided on a back face of said cavity-forming block; and said engagement recess portion comprises an elongated hole having a longitudinal axis extending in a radial direction from either an injection port on said dieset for injecting the molten resin into said cavity, or from a sprue of said cavity-forming block for feeding the molten resin from said injection port to said cavity, said engagement recess portion having a longitudinal inner wall shaped and arranged to contact said engagement protruding portion when said cavity-forming block is mounted on said dieset. 3. The mold for in-mold decoration as recited in claim 2, wherein said engagement protruding portion is located on said mounting face of said dieset, and said engagement recess portion is located on said back face of said cavity-forming block. 4. The mold for in-mold decoration as recited in claim 1, wherein said mold members form a clearance for interposing the decorating film in the joined position, the clearance being inside the passing region of the decorating film. 5. The mold for in-mold decoration as recited in claim 4, wherein said clamping-force receiving portion extends beyond said cavity-forming block in a direction perpendicular to said mounting face of said dieset so as to form the clearance. 6. The mold for in-mold decoration as recited in claim 4, wherein the clearance is shaped such that said mold members do not exert a clamping force on the decorating film in the joined position. 7. The mold for in-mold decoration as recited in claim 4, wherein the clearance has a depth substantially identical to a thickness of the decorating film. 8. The mold for in-mold decoration as recited in claim 1, wherein said dieset further comprises a smooth face disposed on the same plane as said mounting face. 9. The mold for in-mold decoration as recited in claim 1, wherein said clamping-force receiving portion is formed integrally with said dieset. 10. The mold for in-mold decoration as recited in claim 1, further comprising a clamp for retaining the design pattern of the decorating film inside said cavity, said clamp being supported by said cavity-forming block. 11. The mold for in-mold decoration as recited in claim 1, further comprising a clamp for retaining the design pattern of the decorating film inside said cavity, said clamp being supported by said clamping-force receiving portion. 12. The mold for in-mold decoration as recited in claim 1, wherein said cavity-forming block further comprises a coolant pipeline for supplying a coolant to cool the molten resin, said coolant pipeline being directly connected to a coolant feeder. 13. The mold for in-mold decoration as recited in claim 1, wherein said clamping-force receiving portion and said cavity-forming block are spaced apart. 14. The mold for in-mold decoration as recited in claim 5, wherein the clearance is shaped such that said mold members do not exert a clamping force on the decorating film when said mold members are in the joined position. 15. The mold for in-mold decoration as recited in claim 5, wherein the clearance has a depth substantially identical to a thickness of the decorating film. 16. The mold for in-mold decoration as recited in claim 1, where said clamping-force receiving portion comprises a plurality of components evenly arranged around said cavity-forming block. 17. The mold for in-mold decoration as recited in claim 16, wherein said clamping-force receiving portion comprises two components. 18. The mold for in-mold decoration as recited in claim 16, wherein said clamping-force receiving portion comprises four components. 19. The mold for in-mold decoration as recited in claim 1, wherein said second one of said mold members comprises: a cavity-forming block having a cavity configured to receive the molten resin and the design pattern of the decorating film to mold the molded article; and a dieset for mounting said cavity-forming block, said dieset comprising: a smooth mounting face which faces the first one of said mold members and overlaps with the passing region of the decorating film; and a clamping-force receiving portion shaped and arranged to allow the roll-type decorating film to pass entirely and continuously through the passing region between said mold members when said mold members are in the joined position, said clamping-force receiving portion arranged around said mounting face substantially symmetrical with respect to a center line of said second one of said mold members along the passing direction of the decorating film, so as to be outside of the passing region of the decorating film; wherein one of said dieset and said cavity-forming block includes an engagement recess portion, and the other one of said dieset and said cavity-forming block includes an engagement protruding portion, said engagement protruding portion and said engagement recess portion being shaped and arranged to engage each other so as to position said cavity-forming block at said mounting face of said dieset and mount said cavity-forming block on said dieset.