Abstract: An optical device (10) includes a first substrate (11) and a second substrate (12) facing each other, a liquid crystal component (13) between the first substrate (11) and the second substrate (12), a first electrode (18) and a second electrode (19) located on the first substrate (11) on the second substrate (12) side, and a first alignment layer (14) that is located on the first substrate (11) on the second substrate (12) side and controls the alignment state of liquid crystal molecules in the liquid crystal component (13), wherein an interface between the liquid crystal component (13) and the first alignment layer (14) forms a non-glide weak anchoring interface (17).

Abstract: A cab for a construction machine includes; an operator seat including a seat base and a backrest; a control box disposed along a lateral side of the operator seat; an air conditioner main body for cooling air; and a duct disposed behind the operator sea for guiding a cooling air generated in the air conditioner main body. The duct has a blowing port provided at such a position as to allow the cooling air to flow frontward along at least one of a lateral side of the seat base and a lateral side of a lower portion of the backrest and along an inner surface of the control box.

Abstract: An optical device (10) includes a first substrate (11) and a second substrate (12) facing each other, a liquid crystal component (13) between the first substrate (11) and the second substrate (12), a first electrode (18) and a second electrode (19) located on the first substrate (11) on the second substrate (12) side, and a first alignment layer (14) that is located on the first substrate (11) on the second substrate (12) side and controls the alignment state of liquid crystal molecules in the liquid crystal component (13), wherein an interface between the liquid crystal component (13) and the first alignment layer (14) forms a non-glide weak anchoring interface (17).

Abstract: A floor member includes a floor plate extending in a length direction along a front-rear direction of a cab. The floor plate includes front-left corner portion, front-right corner portion, rear-left corner portion, and rear-right corner portion; a first vertical beam member; a second vertical beam member; and a plurality of support members which support the first vertical beam member, the second vertical beam member, and the floor plate in respective regions including a region where the front-left corner portion and a first front end overlap each other, a region where the rear-left corner portion and a first rear end overlap each other, a region where the front-right corner portion and a second front end overlap each other, and a region where the rear-right corner portion and a second rear end overlap each other.

Abstract: A floor member includes a floor plate extending in a length direction along a front-rear direction of a cab. The floor plate includes front-left corner portion, front-right corner portion, rear-left corner portion, and rear-right corner portion; a first vertical beam member; a second vertical beam member; and a plurality of support members which support the first vertical beam member, the second vertical beam member, and the floor plate in respective regions including a region where the front-left corner portion and a first front end overlap each other, a region where the rear-left corner portion and a first rear end overlap each other, a region where the front-right corner portion and a second front end overlap each other, and a region where the rear-right corner portion and a second rear end overlap each other.

Abstract: A design drawing transmission system comprises a design drawing transmission device including a scanner for reading a design drawing drafted on a recording sheet and a transmitter for transmitting drawing information including the image signal prepared by the scanner through a predetermined path, and a design drawing receiving device including a receiver for receiving the drawing information transmitted through the transmission path, a memory for storing the drawing information received by the receiver and a plotter for reading out the drawing information stored by the memory and reproducing the design drawing on a recording sheet on the basis of the image signal included in the drawing information.