| 摘要 |
A connecting device for a sofa bed includes a first connecting member with opposite first and second end portions, and a second connecting member with a rear end portion that is pivoted to the second end portion and that is provided with a spring-loaded pawl unit. A fixed mounting plate is disposed below the first and second connecting members. A pivotable linking plate unit has an upper end pivoted to the first end portion, and a lower end pivoted to the mounting plate such that the first connecting member is movable forward and rearward relative to the mounting plate. The second connecting member is pivotable relative to the first connecting member in a first direction so as to enable the pawl unit to engage one of the ratchet teeth in order to retain the second connecting member at a certain angular position relative to the first connecting member. The second connecting member is pivotable relative to the first connecting member in a second direction opposite to the first direction so as to enable the pawl unit to slide past the ratchet teeth in order to dispose the front end portion of the second connecting member at a position coplanar with the first end portion of the first connecting member.
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