| 摘要 |
<p>A housing member has an interior passage and a slide member is located in this passage and shiftable axially of the same between an arrest and at least one further position. An assembly is also located in this passage and includes a slidable control member which contacts the slide member and a biasing spring which biases the control member into such contact. A first recess is formed in one of the members and an arresting element of circular cross-section is received in this first recess and in part projects from the same. A second recess is formed in the control member and adapted to have the element snap into and out of it. The second recess is at least in part bounded by a flanking surface having a first portion which engages the arresting element when the slide member is in the rest position thereof, and which first portion includes a first angle with the longitudinal axis of the passage. The flanking surface further has a second portion which engages the arresting element when the slide member is in its further position, and this second portion includes with the longitudinal axis a larger second angle.</p> |
