| 摘要 |
PROBLEM TO BE SOLVED: To permit a device to be the one for converting component force obtained by means of a wedge actuation from downward force by means of the gravity of loading on a loading receiving member into force for pressurizing a wall surface in a corner shelf and to provide a product which rapidly resists heavy loading with increased force for pressurizing the wall surface in proportion with the increase of loading. SOLUTION: In the device, a slope is formed with a downward angleθas against the two intersecting wall surfaces A in a loading receiving member, the inclining surfaces 5 with the same angleθbeing upward are formed at positions corresponding to the slope 2 of the loading receiving member 1 in both support members 4 which are held by suckers 9 on the both wall surfaces A and the slope 2 of the loading receiving member 1 is abutted on the inclining surfaces 5 so as to convert the component force of a placed load into wall surface pressing force. In this case, surface contact by the abuttment of the slope 2 on the inclining surfaces 5 is obtained but linear contact or point contact can be also adopted.
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