Camera bellows of one-piece moulded thermoplastics with

摘要

One-piece moulded plastics camera bellows in which the bellows has an integral parts of the original moulding projecting tabs for cord or cable guides. Low flexural modulus plastics materials such as ethylene vinyl acetate copolymer, Ultrathene UE630X (U.S. Industrial Chemicals) or ethylene acrylonitrile copolymer, Zetafin 35 (Dow Chemical) are preferred for the bellows. Teflon (P.T.F.E.) may be used for other parts. Conventional silicone lubricants and anti-blocking agents may be used.