Patent US4212622A successfully refreshed from Google Patents.
US4212622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Product take out devices for use in molding machines
Assignee: Shibaura Machine Co Ltd
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Filing: 1979-05-07
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Granted: 1980-07-15
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Expires: 1999-05-07
Abstract
Abstract In a device for taking out a molded product from a mold of a molding machine by means of a chuck, a parallelogram is used. One pin of the parallelogram is used as a stationary point and the chuck is connected to a pin diagonally opposite the stationary point. A drive shaft is provided for one arm of the parallelogram for swinging the same about the stationary point. A cam groove is provided to control the locus of movement of the drive shaft.
Inventors
- 👤 Tsuyoshi Kikuchi
- 👤 Kiyoshi Takusagawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:57
CPC Classifications
B; B29; B29C; B29C45/00; B29C45/17; B29C45/40; B29C45/42; B22; B22D; B22D17/00; B22D17/20; B22D17/2084
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
113 words
A product take out device for use in a molding machine, comprising a four arm link mechanism including four arms which are connected together by four pins, one of which pins is used as a stationary point of said link mechanism, a chuck operatively connected to one of said pins diagonally opposite said one pin used as a stationary point for grasping and taking out a product from a mold of said molding machine, a drive shaft provided for one of said arms, means for driving said drive shaft thereby swinging said four arm link mechanism about said stationary point, and guide means for controlling the locus of movement of said drive shaft.
Claim 2
Dependent Claim
113 words
A product take out device for use in a molding machine, comprising a four arm link mechanism including four arms which are connected together by four pins, one of which pins is used as a stationary point of said link mechanism, a chuck operatively connected to one of said pins diagonally opposite said one pin used as a stationary point for grasping and taking out a product from a mold of said molding machine, a drive shaft provided for one of said arms, means for driving said drive shaft thereby swinging said four arm link mechanism about said stationary point, and guide means for controlling the locus of movement of said drive shaft.
Claim 3
Dependent Claim
18 words
The product take out device according to claim 1 wherein said four arm link mechanism comprises a parallelogram.
Claim 4
Dependent Claim
36 words
The product take out device according to claim 1 wherein said guide means comprises a cam plate provided with a groove, and a cam follower mounted on said drive shaft to be guided by said groove.
Claim 5
Dependent Claim
37 words
The product take out device according to claim 1 further comprising an electric motor for rotating said one pin acting as a stationary point and motion transmitting means for driving said drive shaft from said one pin.
References Cited (Backward Citations)
US2485336A
Cited
US3131243A
Cited
US3081486A
Cited
US3530533A
Cited
US3702749A
Cited
US3514813A
Cited
US3525382A
Cited
US3767352A
Cited
US4005965A
Cited
US4124352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-07-15 | 1984-01-14 | 1984-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-15 | 1988-01-14 | 1988-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-15 | 1992-01-14 | 1992-07-15 | $7700.00 | Window Closed / Lapsed |