EP0030729A1
Expired / Lapsed
EP
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A clamping device for molds used in the blow molding of hollow plastic articles
Assignee: GKN Windsor GmbH
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Filing: 1980-12-15
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Granted: —
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Expires: 2000-12-15
Abstract
Abstract The disclosure deals with a clamping device for molds used in blow molding of hollow plastic articles having two halves (1A,1 B) of the mold for forming the sides of the hollow plastic article and a bottom part, wherein the halves of the mold can be moved away from each other. The clamping device is characterized in that during the opening of the mold the halves of the mold are moved away from each other in a longitudinal direction to said hollow plastic article and, at least partially simultaneously, in a perpendicular direction to said article.
Inventors
- 👤 Lothar Ott
- 👤 Dieter Gessner
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 05:18
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/42; B29C49/56; B29C49/5601; B29C49/5602
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
1 . A device for molds used in blow molding of hollow plastic articles contained in said molds including two halves of the mold for forming the sides of the hollow plastic article and a bottom part of said mold, wherein the halves of the mold are movable away from each other, which comprises means associated with said mold halves and operative during the opening of the mold for moving the halves of the mold away from each other in a longitudinal direction to said hollow plastic article and, at least partially simultaneously therewith, in a perpendicular direction to said article.
Claim 2
Dependent Claim
101 words
1 . A device for molds used in blow molding of hollow plastic articles contained in said molds including two halves of the mold for forming the sides of the hollow plastic article and a bottom part of said mold, wherein the halves of the mold are movable away from each other, which comprises means associated with said mold halves and operative during the opening of the mold for moving the halves of the mold away from each other in a longitudinal direction to said hollow plastic article and, at least partially simultaneously therewith, in a perpendicular direction to said article.
Claim 3
Dependent Claim
35 words
A device according to claim 1 including mounting plates connected to the halves of the mold, wherein said platen. or mold halves are provided with cam followers which in turn are guided by cam tracks.
Claim 4
Dependent Claim
14 words
A device according to claim 2 including two cam followers for each mold half.
Claim 5
Dependent Claim
41 words
A device according to claim 2 wherein the cam tracks are each provided with parts constructed essentially parallel to the axis of the closed hollow mold and each having a part directed away from the hollow mold in an outward direction.
Claim 6
Independent Claim
31 words
A device according to claim wherein each cam track has upper and lower end parts and wherein each end part is essentially parallel to the axis of the closed hollow mold.
Claim 7
Dependent Claim
31 words
A device according to claim 1 including an upper and a lower cross bar associated with said mold halves with recesses therein for receiving the mold halves in the closed position.
Claim 8
Dependent Claim
24 words
A device according to claim 6 wherein said recesses are provided with tapered surfaces matching corresponding tapered surfaces of the halves of the mold.
Claim 9
Dependent Claim
14 words
A device according to claim 7 wherein said taper is 7 degrees or less.
Claim 10
Dependent Claim
14 words
9 . A device according to claim 1 wherein said bottom part is stationary.
References Cited (Backward Citations)
US4155974A
Cited
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