| 摘要 |
A joint engagement device includes a base board having a plurality of first joints defined therein and two sidewalls extend from the base board. A connection board is connected between the two sidewalls and two slots are defined through the connection board so that two posts of a carrier member movbaly extend therein. An operation frame has two arms each of which is connected between the sidewall and the post. An engaging board has a plurality of second joints and is engaged with between the two posts of the carrier member. The carrier member carries the engaging board to move toward the base board to engage the second joints with the first joints when pivoting the operation frame toward the base board.
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