Patent ID: 7654406

Claim:
A sliding cover comprising: an outside plate having front and rear faces; a plate-like support member fixed to the rear face of the outside plate; a movable plate-like holding member disposed in a space between the outside plate and the support member and movable in a moving direction through a movable range; and toggling means disposed between the holding member and the outside plate or the support member, wherein the support member includes two parallel racks and elongated guides disposed at both end portions of the support member and extending in the same direction as the racks; the holding member comprising a holding plate, an even number of pinions meshed with each other and supported by the holding plate so as to be rotatable, and guiding components supported by the holding plate having engaging pieces engaged and guided by the elongated guides, the even number of pinions being disposed between the guiding components; the pinions being meshed with the racks, and the guiding components being engaged with and slidable with respect to the elongated guides; and the toggling means biasing the holding member in a biasing direction that is reversed substantially at a midpoint of the movable range of the holding member.