公开(公告)号：US5266991A

公开(公告)日：1993-11-30

申请号：US867353

申请日：1992-04-13

Applicant: George W. McAtee, Jr.

Inventor： George W. McAtee, Jr.

IPC: G02B7/28 ,  G03B3/00 ,  G03B17/00 ,  G05G1/54 ,  G03B1/18

CPC classification number: G05G1/54 ,  G02B7/28 ,  G03B17/00 ,  G03B3/00 ,  Y10T74/20744 ,  Y10T74/2084

Abstract: An auxiliary knob used in conjunction with camera focusing knobs to improve the focusing operation and improve access for focusing. An elastomeric body includes a recess frictionally receiving the camera focusing knob, and a knob turning surface defined upon the elastomeric body of a diameter substantially greater than the diameter of the camera focusing knob reduces the effort required for focusing and improves knob access. Reduced wall thickness lips and rims defined on the auxiliary knob facilitate cooperation with the camera focusing knob and improve the knob handling characteristics.

Abstract translation: 与相机调焦旋钮配合使用的辅助旋钮，以改善对焦操作并改善对焦的访问。 弹性体包括摩擦地容纳相机聚焦旋钮的凹部，以及限定在基本上大于相机聚焦旋钮的直径的直径的弹性体上的旋钮转动表面，减少了聚焦所需的力量并改善旋钮的进入。 辅助旋钮上定义的壁厚减小的唇缘和轮辋便于与相机对焦旋钮配合使用，提高旋钮处理特性。