Window up-and-down-winding-type shielding apparatus for conveyance

A window up-and-down-winding-type shielding apparatus for a conveyance that has a shielding member movable in an up-and-down direction for forming a shading screen at a window part of the conveyance and that causes the shielding member to be moved in the up-and-down direction to adjust a shading range of the window part, comprising:

• a pair of guide rails that are provided at both sides of the window part of the conveyance and that extends in the up-and-down direction so as to be parallel to each other;
• a moving member that is supported by the guide rails along the guide rails so as to be movable in the up-and-down direction and that is connected to a lower end of the shielding member;
• a winding mechanism that has a rotation section for retractably winding the shielding member at an upper end of the guide rail;
• a biasing force application means that applies a biasing force to the rotation section of the winding mechanism in a direction along which the shielding member is wounded;
• a motion conversion mechanism that converts the movement of the moving member in the up-and-down direction along the guide rails to a rotational motion;
• an axis member that is coordinated with the motion conversion mechanism to have a rotational motion in accordance with the up-and-down movement of the moving member;
• and
• a mechanism for switching a direction along which the rotative force is transmitted by which the rotation of the axis member in one direction is allowed and the rotation of the axis member in other directions is limited and the free rotation direction and the limited rotation direction can be switched.