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Home :: Company Information :: Patents
Continental Design & Engineering Patents
Quick Change Mold Insert
United States Patent
Wagner et al. |
Patent Number: 4,684,101
Date of Patent: Aug. 4, 1987 |
| QUICK CHANGE MOLD INSERT |
| Inventors: |
Earl F. Wagner, Alexandria; Charles M. Smith, Anderson, both of Ind. |
| Assignee: |
General Motors Corporation, Detroit, Mich. |
| Appl. No.: |
794589 |
| Filed: |
Nov. 4, 1985 |
| Int. Class: |
B29C 39/26; B29C 45/26; |
| U.S. Class: |
249/144; 164/340; 249/151; 425/192 R; 425/193; 425/542; 425/577 |
| Field of Search: |
249/142, 47, 151, 155, 249/146, 144, 147; 425/182, 190, 192 R,
577, 191, 542, 193; 403/247, 252, 261 374; 164/340 |
References Cited
U.S. PATENT DOCUMENTS |
| 152301 |
June 1874 |
Merwin |
249/151 |
|
| 280769 |
July 1883 |
Snediker |
249/142 |
| 1103039 |
July 1914 |
Cudell |
249/142 |
| 2161521 |
June 1939 |
McWane |
164/340 |
| 2519171 |
August 1950 |
Bolton |
249/142 |
| 3060509 |
October 1962 |
McCubbins |
425/577 |
| 3074112 |
January 1963 |
Specht |
249/142 |
| 3074113 |
January 1963 |
Bobrow |
249/142 |
Primary Examiner- Willard E. Hoag
Attorney, Agent, or Firm- Lawrence B. Plant |
Abstract
An injection molding mold including an insert in-part defining the mold
cavity and readily accessible for replacement from the side of the mold. The insert has a molding
head at the mold cavity, a shank extending into a socket in the mold, a mortice in the shank for
receiving a retainer to hold the insert in place and, preferably, a camming surface on the end of
the shank for dislodging the insert from the mold. The retainer will preferably be a sliding pin
having a bifurcated keeper portion providing two tapered prongs engaging opposed slots on the
insert's shank for holding the insert in place during molding and subsequently for camming the
insert loose from the socket at replacement time.
1 Claims, 7 Drawing Figures |
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