Apparatus of forming the mounting portion of a sidewall protecto

Details Apparatus of forming the mounting portion of a sidewall protecto Apparatus of forming the mounting portion of a sidewall protecto

1979-12-17

1981-01-27

Flint, Jr., J. Howard

Plastic article or earthenware shaping or treating: apparatus

Preform severing means

Configuration of cutting implement providing shaping cavity

425290, 425306, 425 37, 425 36, 264156, 264326, 152196, 152353R, B29C 1100, B29C 2300, B29H 502

Patent

active

042472750

ABSTRACT:
PCT No. PCT/US79/01107 PCT Filed Dec. 17, 1979 Sec. 371 Dec. 17, 1979 Sec. 102(e) Date Dec. 17, 1979.
A method and apparatus for forming the mounting portion of a sidewall protector includes a rigid mold (19) in which a sidewall protector (12) can be formed and a separate plate assembly (29,31) which is moveable toward the rigid mold to form the mounting holes (10), central opening 11, and a pair of annular ribs (14,16) on opposite sides of the sidewall protector. Movement of the plate (32) is done by a plurality of springs (47) each positioned between the plate (32) and an enlarged head portion (48) of a pin (46). The springs are compressed by a linear actuator (43) and the pin (46) is connected to the mold (19) by a dowel (54) inserted through a hole (53) in the pin (46) to maintain the compression on the springs (47). This apparatus permits the use of automated strip applying equipment for laying up the sidewall protector within the mold (19) while the plate assembly (29,31) accurately forms the mounting portion which includes the mounting holes (10), annular opening (11), and the annular ribs (14,16).

REFERENCES:
patent: 2339792 (1944-01-01), Milano
patent: 2346335 (1944-04-01), Sidnell
patent: 2561050 (1951-07-01), Charron et al.
patent: 2763028 (1956-09-01), Blake
patent: 2779097 (1957-01-01), Frazier
patent: 3031354 (1962-04-01), Williams
patent: 3486198 (1969-12-01), Lewis
patent: 3517410 (1970-06-01), Rapisarda
patent: 3948707 (1976-04-01), Grawley et al.

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