Tool for installing and removing threaded camera lenses

摘要

This invention provides a tool for tightening and loosening lenses with respect to camera bodies. The tool includes a body that defines a cavity that is slightly larger in diameter than the sidewalls of the lens adjacent the lens face. Within the cavity is a thin, high-friction, elastomeric material that resides between the edges of the lens when the cavity is pressurably engaged over the lens face. The material frictionally couples the tool body to the lens face and adjacent side walls, thereby allowing a predetermined level of torque to be applied to tighten or loosen the lens. The tool can be adapted for attachment to a handle, such as a torque wrench or can include a handle specifically adapted/contoured for grasping by a user's hand.

主权项

1. A tool for installing and removing a lens having a front face, outer sidewalls adjacent the front face and an outer diameter of the outer sidewalls, the tool comprising:
a body having a cavity on a front end thereof, the cavity with inner sidewalls defining a diametral difference wherein an inner diameter of the inner sidewalls is greater than the outer diameter of the outer sidewalls of the lens; and a pad constructed of an elastomeric material that is continuously formed so as to completely overlap the cavity and, in a resting state define a perimeter that extends radially beyond an outer perimeter edge of the tool at the front end, wherein the tool is constructed and arranged to engage the front face and the outer sidewalls of the lens with the pad elastically deforming and compressing into the cavity against the inner sidewalls to provide a frictional engagement between the lens and the pad.