| 摘要 |
PURPOSE:To make a base of one shape usable for four purposes by changing the length of the lateral constitute members of a channel base for a board, and the positions and interval of the longitudinal constitute members. CONSTITUTION:Influence on row board installation of the warp of the longitudinal members 13 of a channel base 11 for a board such as a control board, a switchboard, etc., is prevented by moving the longitudinal members 13 from the end surfaces of the lateral members to the inside (dimension sigma). Besides, position setting at the time of installing a board row is facilitated by making the length of the lateral members 12 a little smaller than the breadth of boards. On the contrary, a gap is produced between spacers 15, but the spacers 15, freely attachable or removable, perform the function of filling this gap easily. Besides, this base 11 is applicable to either of an independent one, the right or left end one of a board row, and an intermediate one of a board row, by using spacers 15 or end boards 16 properly for one board 11. Consequently, it becomes possible to use one base 11 for four purposes. |
