Method of making a push button which is unbonded to a panel cove

Details Method of making a push button which is unbonded to a panel cove Method of making a push button which is unbonded to a panel cove

Filed on

1995-02-01

Date issued

1997-10-21

Examiner

Silbaugh, Jan H.

Patent Class

Plastic and nonmetallic article shaping or treating: processes

SubClass

Mechanical shaping or molding to form or reform shaped article

SubSubClass

To produce composite, plural part or multilayered article

Other Related Categories

200512, 200517, 264130, 264132, 264135, 264264, 264266, B29C 4526, H01H 110

Type

Patent

Status

active

Patent number

056793049

Description

ABSTRACT:
A method of manufacturing a panel button includes providing a molding die including a transferable molding die defining a cavity, a core molding die having a runner, a sprue and a gate and a stationary molding die having a sprue. A hollow space is provided in a bottom of the cavity wherein a push button is formed. A projecting portion is inserted into the cavity and is formed on the underside of the core molding die. Two hollow coaxial spaces are connected to each other, one to form a boss, the other to form an elastic arm. A plastic sheet is introduced into the cavity and is sandwiched between the transferable molding die and the core molding die. The plastic sheet has an unbonding portion at a position where the push button is to be formed. A molten resin material is injected into the cavity through the runner, sprue and gate. The thus formed panel button includes the push button on the plastic sheet.

REFERENCES:
patent: 3584162 (1971-06-01), Krakinowski
patent: 4128744 (1978-12-01), Seeger
patent: 4130615 (1978-12-01), Decker, Jr. et al.
patent: 4349712 (1982-09-01), Michalski
patent: 5343008 (1994-08-01), Ipcinski

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