PROBLEM TO BE SOLVED: To provide a cart device that enables a duty person to effectively use in an office space by minimizing installation position in the office space and that has a stable structure and nonetheless improves the convenience of the duty person.SOLUTION: In a cart device, a first storing part is formed which is formed so as to be surrounded by a first, second and third support arms 53, 54, 55 of a tabletop support 50, which opens to the front, left and right continuously in the lower part of the tabletop 40, and which is capable of storing top boards of fixtures such as a desk and a counter. Then, an upper structure A comprising the tabletop 40 supported on a support base 30 and a tabletop support 50, is desirably set in such a manner that the center of gravity position G1 in a plan view is located in a position inner than the outer periphery of the lower structure comprising a base 20 and the support base 30. Also, the center of gravity position G1 is set in a position close to inside the cross section of the support base 30. As a result, when the tabletop 40 is vertically moved by expanding/contracting the support base 30, the support base 30 is hardly affected by an unbalanced load, facilitating smooth operation of elevating/lowering the support base 30.COPYRIGHT: (C)2013,JPO&INPIT【課題】執務空間内における設置位置を最小限として執務空間内を有効に活用することが出来ると共に、安定的な構造で有りながら執務者の使い勝手を良好とする。【解決手段】カート装置は、天板支持部50の第一支持アーム53、第二支持アーム、第三支持アーム55に囲まれるようにして、天板40の下方に前方、左方及び右方に連続して開口しデスクやカウンタ等の什器天板を収容可能な第一収容部を形成した。そして支持基体30上に支持された天板40と天板支持部50とからなる上部構造体Aは、平面視したときの重心位置G1がベース部20と支持基体30とからなる下部構造体の外周部よりも内側に位置するよう設定するのが好ましい。また重心位置G1は、支持基体30の断面内に近い位置に設定する。これにより支持基体30を伸縮させて天板40を昇降させるときに支持基体30に偏荷重がかかりにくくなり、支持基体30の昇降動作を円滑が行える。【選択図】図6
