| 摘要 |
<p>Cremone-bolt door-locking controlled by rack-and-pinion means. The cremone-bolt rod (15) is connected to a first rack support (25) that is slidably mounted inside a housing (13) that houses a second slidably mounted rack support (27), each rack support carrying a rack segment (31, 33) in engagement with a pinion (35), at least one rack segment being hinged to its own rack support and being provided with a set of teeth that is extended over a curved portion (31c, 33c) of its end.</p> |
