JPS5674801A - Rubber sheet for turntable - Google Patents
Rubber sheet for turntableInfo
- Publication number
- JPS5674801A JPS5674801A JP15112379A JP15112379A JPS5674801A JP S5674801 A JPS5674801 A JP S5674801A JP 15112379 A JP15112379 A JP 15112379A JP 15112379 A JP15112379 A JP 15112379A JP S5674801 A JPS5674801 A JP S5674801A
- Authority
- JP
- Japan
- Prior art keywords
- factice
- group
- turntable
- rubber
- polynorbornene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
PURPOSE: To prevent the howling to ensure a reproduced sound which is faithful to the original sound, by giving a specified form to one surface of a disk-shaped sheet made of the vulcanized molded product of the rubber composition composed of polynorbornene, factice and oil.
CONSTITUTION: The vulcanized molding is given to the rubber composition composed of the 100pts.wt. polynorbornane only or the mixture of the polynorbornene and other rubber, the 5W500pts.wt. of white-color factice only or the mixture of the said factice and other factice, and 200W1,000pts.wt. oil of one type or more among the aromatic-group, naphthene-group, paraffin-groups, vegetable-group and animal-group, respectively. Thus the rubber sheet is obtained for a turntable. The vulcanized molded product requires 1W15 hardness (Shore hardness), 1W50kg/cm2 tensile strength, 120W1,000% elongation, 40W90% coefficient of impact resilience and 0.93W1.05 specific gravity. Then several units of ribs 2 having a concentric form of 0.3W1.8mm height are provided on one surface of the sheet main body 1, and the notches 3 are given densely to the rib 2. The rib face is turned properly to the turntable or the record disk.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15112379A JPS5674801A (en) | 1979-11-20 | 1979-11-20 | Rubber sheet for turntable |
US06/285,102 US4370371A (en) | 1979-11-20 | 1980-11-18 | Rubber disc for a record player turntable |
DE19803049878 DE3049878A1 (en) | 1979-11-20 | 1980-11-18 | RUBBER SHEET FOR TURNTABLE |
EP19800902182 EP0041072B1 (en) | 1979-11-20 | 1980-11-18 | Rubber sheet for turntable |
PCT/JP1980/000282 WO1981001481A1 (en) | 1979-11-20 | 1980-11-18 | Rubber sheet for turntable |
NL8020426A NL8020426A (en) | 1979-11-20 | 1980-11-18 | RUBBERVEL FOR A TURNTABLE. |
AU65722/80A AU532870B2 (en) | 1979-11-20 | 1980-11-18 | Rubber sheet for turntable |
GB8110983A GB2074778B (en) | 1979-11-20 | 1981-04-08 | Rubber sheet for turntable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15112379A JPS5674801A (en) | 1979-11-20 | 1979-11-20 | Rubber sheet for turntable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5674801A true JPS5674801A (en) | 1981-06-20 |
Family
ID=15511860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15112379A Pending JPS5674801A (en) | 1979-11-20 | 1979-11-20 | Rubber sheet for turntable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5674801A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56157448A (en) * | 1980-05-08 | 1981-12-04 | Nippon Zeon Co Ltd | Sound barrier material for floor impact and application of the same |
JPS5868203A (en) * | 1981-10-15 | 1983-04-23 | Houyuu Gomme Kk | Stabilizer |
-
1979
- 1979-11-20 JP JP15112379A patent/JPS5674801A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS56157448A (en) * | 1980-05-08 | 1981-12-04 | Nippon Zeon Co Ltd | Sound barrier material for floor impact and application of the same |
JPS5868203A (en) * | 1981-10-15 | 1983-04-23 | Houyuu Gomme Kk | Stabilizer |
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