Abstract: A cord clamp includes: two plate sections; and a base plate section that connects one end sections of the plate section in the longitudinal direction. A step a surface of which is shifted in a direction intersecting a plane formed by a cord insertion direction in which a cord passes between the plate sections and the longitudinal direction is provided on each of an inside surface formed on the side where the two plate sections face each other and an outside surface formed on an opposite side of the inside surface, a location in the direction where the step of the inside surface is provided and a location in the direction where the step of the outside surface is provided are equal to or greater than a plate thickness of the plate section and equal to or less than three times the plate thickness thereof.

Abstract: A tray unit includes: a plurality of trays each of which has a protrusion at a side end portion thereof; and a pair of frames vertically provided with a plurality tiers of rail portions, the plurality of tiers of rail portions accommodating the plurality of trays in a slidable manner in a horizontal direction. And the rail portion at each tier include a clamp on a surface facing the side end portion of the tray, the clamps in the plurality of tiers are aligned in a vertical direction, the clamp has an opening to which the protrusion is fittable, and when the side end portion of the tray move to a predetermined position with respect to the rail portion, the clamp is elastically deformed in the vertical direction of the rail portion, and the protrusion is fitted into the opening.

Abstract: A tray unit includes: a plurality of trays each of which has a protrusion at a side end portion thereof; and a pair of frames vertically provided with a plurality tiers of rail portions, the plurality of tiers of rail portions accommodating the plurality of trays in a slidable manner in a horizontal direction. And the rail portion at each tier include a clamp on a surface facing the side end portion of the tray, the clamps in the plurality of tiers are aligned in a vertical direction, the clamp has an opening to which the protrusion is fittable, and when the side end portion of the tray move to a predetermined position with respect to the rail portion, the clamp is elastically deformed in the vertical direction of the rail portion, and the protrusion is fitted into the opening.