会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Chassis for printed circuit boards
    • 印刷电路板底盘
    • US4201303A
    • 1980-05-06
    • US948300
    • 1978-10-03
    • Jesse C. Smith
    • Jesse C. Smith
    • H05K7/14H05K7/18
    • H05K7/1425
    • A chassis for printed circuit (P.C.) boards composed of a pair of parallel end plates having perforation patterns in the corners to receive pronged keys fitting into the ends of multiple channelled rails which extend between the end plates in parallelism with each other and are provided with spaced pairs of notches in rows respectively serving as receiving guides for the P.C. boards and positioning means for the ends of grooved card guides which extend between pairs of said rails and disposed respectively in parallel planes common with opposite edges of said end plates. Self-tapping screws extend through certain perforations in said patterns thereof and also through a hole in each key for threaded engagement with the end of a certain channel of each of said rails to maintain said rails against turning and thereby align opposite guide and positioning notches accurately with each other. A simple manually operable tool is detachably connected to the chassis for convenient use to extract and insert P.C. boards. Connecting nuts or heads of bolts are slidably positioned in certain channels of said rails to prevent turning and to secure covers and/or mother boards or the like to said chassis, and a slidable locking plate secures the P.C. boards against undesired removal from the chassis.
    • 一种用于印刷电路板(PC)的底板,由一对平行的端板构成,所述平行端板在角部具有穿孔图案,以接收配合到彼此平行地延伸在端板之间的多个通道轨道的端部中的叉形键, 分隔成行的槽中的间隔的成对的凹槽用作PC的接收引导件 板和定位装置,用于在成对的所述导轨之间延伸的带槽的卡片导向件的端部,并分别设置在与所述端板的相对边缘共同的平行平面中。 自攻螺丝穿过其所述图案中的某些穿孔并且还穿过每个键中的孔,用于与每个所述轨道的某个通道的端部螺纹接合,以保持所述轨道抵抗转动,从而准确地对准引导和定位槽口 与彼此。 简单的可手动操作的工具可拆卸地连接到底盘,以方便使用来提取和插入P.C. 董事会 连接螺母或螺栓头部可滑动地定位在所述轨道的某些通道中,以防止转动并将盖板和/或母板等固定到所述底盘,并且可滑动的锁定板固定P.C. 防止从机箱移除的板。