| 摘要 |
The device herein described is designed to deliver and retrieve hollow, tubular members and especially a multichanneled hose that is operably connected to equipment regularly used by dentists in the performance of dental services. The delivery and retrieving device includes a base support member and a hose collecting reel rotatably mounted to a vertical shaft perpendicularly mounted to the base support member. The hose collecting reel consists of an upper and lower disk plate in which one of the disk plates contains a cut-out, spiraled raceway. The disk plates are separated or maintained in a spaced apart relationship by a discontinuous separating ring. Rotation of the collecting reel is accomplished by a clock spring carried within a housing of a ball detent locking mechanism positioned beneath the lower disk plate. A hose separating pin, operably connected to an electrical switch, is mounted to the base support member in a fashion such that one end thereof is capable of riding in the cut-out, spiraled raceway during rotation of the collecting reel. As the collecting reel is rotated, the separating pin maintains a spaced separation between the spirally collected hose preventing the hose from crimping and thereby hampering the retrieving action. A smooth delivery of any desired length of tubing is achieved by a centrifugal type of ball-detent locking mechanism wherein the housing of the locking ball is positioned on an angle of about 15 DEG above a plane horizontal to the locking detents.
|
