| 摘要 |
<p>A clip mechanism (10; 60) for securing an item onto a projecting button defines a keyhole-shaped slot (20), so the button can pass through at one end but not at the other end. It comprises a frame element (12; 62) and a slot-defining element (14; 64) movable relative to the frame element between a first relative position and a second relative position, and at least one locking element (24; 80) adjacent to the slot (20) at an intermediate position. In the first relative position the locking element (24; 80) protrudes into the slot (20), so preventing the button from passing along the slot, whereas in the second relative position the locking element (24; 80) does not prevent movement of the button along the slot. The locking elements (24; 80) prevent unintentional removal of the clip mechanism (10; 60) from the projecting button.
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