请教一种锁定：Friction Lock

叨叨催人老 · 发表于 2013-7-26 07:49

摩擦锁？木听说过啊例图：

tosiou · 发表于 2013-7-26 08:13

意思就是没锁?

城市猎人6577 · 发表于 2013-7-26 08:14

第一次听说，求解

罗布占堆 · 发表于 2013-7-26 08:17

A mechanical lock normally preventing axial motion of a rod with respect to a housing sleeve that surrounds the rod includes a coil spring whose diameter is slightly less than the diameter of the rod so that the coil spring normally encircles and grips the rod tightly. The coil spring is mounted on the rod between a bushing fixed to the housing sleeve at one end of the spring and a second bushing that is rotatable with respect to the housing at the other end of the spring. The rotary bushing is rotated by an actuating lever to unwind the spring so as to increase its diameter and thereby to release its grip on the rod. Both the fixed bushing and the rotatable bushing include beveled faces which permit the last few turns at both ends of the spring to become cocked on the rod to provide a true locking engagement with the rod. The last few turns of the spring adjacent the rotatable bushing are immediately released by a minimum of rotation of the bushing since it is not necessary for the unwinding of the spring to be transmitted through the entire length of the spring. Because the spring is shorter than in prior locks, the entire device is shorter and accordingly more resistant to bending and lighter in weight. The structure of the device simplifies its assembly and this, along with its reduced length appreciably reduces the cost of producing the device.

google翻译了下，没时间改将就看：防止轴向运动的杆相对于杆周围的壳体套筒的机械锁一般包括一螺旋弹簧，其直径略小于杆的直径，因此，通常，该螺旋弹簧围绕和把手杆紧紧地。所述螺旋弹簧被安装在杆在弹簧的一端固定在壳体套筒之间的衬套和第二衬套相对于壳体的弹簧的另一端是可转动的。旋转衬套是可利用弹簧的致动杆的旋转，以增加其直径，从而释放其握在杆。无论是固定的衬套与可转动的套管，包括斜削面允许在弹簧的两端，成为竖起的杆与杆提供真正的锁定接合的最后几匝。相邻的弹簧可转动的套管的最后几匝立即释放由一个最小的套管的旋转，因为这是没有必要为退绕的弹簧，以通过弹簧的整个长度发送。因为弹簧是短于以往锁，整个装置较短，因此更耐弯曲和重量更轻。的移动设备的结构简化了它的组装，并且，随着它的减小的长度明显地降低了设备的制造成本。
参考文献：
[1]http://www.google.com/patents/US4411339?hl=zh-CN&dq=8,060,259&ei=1KwlUK77MO7hiwLxqoCYCA

文生 · 发表于 2013-7-26 08:45

无法理解，请技术帝解疑。

jacky_lsh · 发表于 2013-7-26 08:53

这把刀到是蛮漂亮的

小刀刻硬盘 · 发表于 2013-7-26 09:14

4楼的解说非常专业，但是我完全无法在脑中建立起画面。。。
有个图就好了。。

companion244 · 发表于 2013-7-26 09:20

感觉就是瑞士军刀那种锁定吧？

hd25 · 发表于 2013-7-26 11:15

本帖最后由 hd25 于 2013-7-26 11:18 编辑

楼上的举了很好的例子....
friction lock就是靠摩擦力来「锁」定（应该只是「卡」）....甩棍是最好的范例
在刀具上，friction lock就是no lock....老式剃刀（可折阖的）就是了

espritwhl · 发表于 2013-7-26 11:33

到很漂亮的啊

叨叨催人老 · 发表于 2013-7-26 18:14

“friction lock就是no lock”？？？！！！那就太遗憾了

叨叨催人老 · 发表于 2013-7-26 18:15

罗布占堆发表于 2013-7-26 08:17
A mechanical lock normally preventing axial motion of a rod with respect to a housing sleeve that su ...

谢谢啦不过完全看不懂啊

[量产刀] 请教一种锁定：Friction Lock