| 摘要 |
A foldable tablet assembly for the arm rest of a seat of the type including a member pivotally mounted for movement about a first horizontal axis extending transversely of the arm rest, and a tablet member pivotal on said pivotal member about a second axis perpendicular to the said first axis. The present invention provides interengaging means which firstly ensure that the pivotal member is held in a raised position when the tablet is displaced from a vertical plane for movement to a horizontal working position, and secondly the interengaging means maintain the tablet in a vertical plane when the pivotal member is being swung down to the stowed position. The interengaging means include a part, such as a lug, attached to the tablet member, and a fixed surface extending transversely of the arm rest engageable with said part to prevent movement of the pivotal member as the tablet is swung down to the working position.
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