Patent ID: 7813144

Claim:
A control apparatus constituted by attaching a board to a board support provided at a base attachably and detachably, wherein the board support is constituted by a resin and comprises: a guide having a section in an L-like shape provided to be extended to an upper side at one side end portion of the support member; an elastic hook having a section in an L-like shape provided to extend to the upper side at the other side end portion of the board support, the hook in which a portion of the hook raised from the board support is formed by a shape of a circular arc; and a board mounting portion provided between the guide and the hook for supporting a lower face of the board, wherein the guide includes an engaging portion provided at an upper portion of the guide and engaged with one side end portion of the board mounted to the board mounting portion, wherein the hook includes an engaging portion provided at an upper portion of the hook and engaged with the other side end portion of the board mounted to the board mounting portion, and the hook is provided with an elasticity and is able to inclined, and wherein when the hook engages with the other side end portion of the board, a face on an inner side of the raised portion of the hook presses the board to the guide side.