| 摘要 |
A positioning mechanism is provided that does not require a biasing member to allow adjustment and maintenance of a position. A first member is provided with a channel forming locking positions and a return channel. A second member, slidably movable with respect to the first member, is provided to mount a rotatable cog. The cog interfaces with the channel of the first member to selectively inhibit relative movement between the first and second members without use of a biasing member.
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