# US 2014/0154348 A1 · Mold assembly

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- Number: US 2014/0154348 A1
- Document ID: US20140154348A1
- Status: Published application
- Kind: A1
- Application number: 14/176,157
- Filed: 2014-02-10
- Published: 2014-06-05
- Earliest claimed: 2010-12-30
- Assignees: Pioneer Material Precision Tech Co., Ltd.
- Applicants: Pioneer Material Precision Tech Co., Ltd.
- Inventors: Yuan-Shun Tsai; Yu-Cheng Hsu
- Web page: https://patentgrep.com/patent/US20140154348A1

## CPC

- B29C 45/14836: {Preventing damage of inserts during injection, e.g. collapse of hollow inserts, breakage (B29C45/14434 takes precedence)}
- B29C 33/405: {Elastomers, e.g. rubber (B29C33/50 takes precedence)}
- B29C 33/565: {Consisting of shell-like structures supported by backing material}
- B29C 45/14: incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles {(B29C45/1671 takes precedence)}
- B29C 45/14065: {Positioning or centering articles in the mould}
- B29C 45/37: Mould cavity walls {, i.e. the inner surface forming the mould cavity, e.g. linings}
- B29C 2045/14122: {using fixed mould wall projections for centering the insert}
- B29C 2045/14934: {Preventing penetration of injected material between insert and adjacent mould wall}
- B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00)

## Abstract

A mold assembly for insert-molding a heterogeneous object includes an upper mold and a lower mold. The upper mold includes a cavity for accommodating an insert object. The lower mold includes a rigid body and a resilient contact member for resting the insert object. The resilient contact member absorbs dimensional variations of the insert object during the insert molding process.

## Claims

### Claim 1

A mold assembly, comprising:
an upper mold comprising a first rigid body and a first resilient contact member; and
a lower mold comprising a second rigid body and a second resilient contact member, wherein the upper mold and the lower mold, when combined together, define an inner space for accommodating an insert object, wherein the insert object contacts both the first resilient contact member and the second resilient contact member, thereby absorbing dimensional variations of the insert object.

### Claim 2 (depends on 1)

The mold assembly according to claim 1, wherein the first resilient contact member is fixed on an inner side of the first rigid body.

### Claim 3 (depends on 1)

The mold assembly according to claim 1, wherein the second resilient contact member is fixed on an inner side of the second rigid body.

### Claim 4 (depends on 1)

The mold assembly according to claim 1, wherein a polymer elastomer, which is injected into the inner spacer, bonds with the insert object to form the heterogeneous object.

### Claim 5 (depends on 4)

The mold assembly according to claim 4, wherein the polymer elastomer is composed of a material that is different from the first and the second resilient contact members.

### Claim 6 (depends on 5)

The mold assembly according to claim 5, wherein the polymer elastomer is composed of silica gel and the first and the second resilient contact members are composed of synthetic rubbers.

### Claim 7 (depends on 5)

The mold assembly according to claim 5, wherein the polymer elastomer is composed of a synthetic rubber and the first and the second resilient contact members are composed of silica gels.

### Claim 8 (depends on 1)

The mold assembly according to claim 1, wherein the insert object does not contact the rigid body.

### Claim 9 (depends on 1)

The mold assembly according to claim 1, wherein the insert object comprises metal, plastic, ceramic or glass.