Shading device
AssigneeKabushiki Kaisha Nichibei
InventorsHideki Otsuka, Masaki Nakajima
Life of this patent
Estimating the term…
Abstract
A shading device including a first driving shaft that is rotatably supported within a headbox and may drive a first moving member and a second driving shaft that is rotatably supported within the headbox and may drive a second moving member, the shading device includes a first pulley that drives the first driving shaft, and a second pulley that is disposed at a position different from the first pulley in a longitudinal direction of the headbox and drives the second driving shaft.
Claims20
A shading device comprising a first driving shaft that is rotatably supported within a headbox and configured to drive a first moving member and a second driving shaft that is rotatably supported within the headbox and configured to drive a second moving member, the first moving member and the second moving member configured to move relative to the headbox, the shading device comprising:
- a first pulley that drives the first driving shaft;
- a second pulley that is disposed at a position different from the first pulley in a longitudinal direction of the headbox and drives the second driving shaft, wherein a rotational axis of the first pulley and a rotational axis of the second pulley are substantially coaxial, the first pulley and the second pulley being disposed in parallel along the longitudinal direction;
- and
- an urging member that is disposed between the first pulley and the second pulley in the longitudinal direction and configured to apply a rotational force to at least one of the first pulley or the second pulley.
A shading device comprising a first driving shaft that is rotatably supported within a headbox and configured to drive a first moving member and a second driving shaft that is rotatably supported within the headbox and configured to drive a second moving member, the first moving member and the second moving member configured to move relative to the headbox, the shading device comprising:
- a first pulley that drives the first driving shaft;
- a second pulley that is disposed at a position different from the first pulley in a longitudinal direction of the headbox and drives the second driving shaft;
- and
- a transmission mechanism that transmits a rotational force of the second pulley to the second driving shaft, wherein:
- a rotational axis of the first pulley and a rotational axis of the second pulley are substantially coaxial,
- the first pulley and the second pulley are disposed in parallel along the longitudinal direction,
- the first driving shaft and the second driving shaft are disposed in parallel so that a position of an axial center of the first driving shaft is different from a position of an axial center of the second driving shaft in an orthogonal direction perpendicular to the longitudinal direction,
- a position of an axial center of the second pulley is different from the position of the axial center of the second driving shaft in the orthogonal direction, and
- the transmission mechanism converts a rotation around the axial center of the second pulley to a rotation around the axial center of the second driving shaft and transmits the converted rotation to the second driving shaft.
A shading device comprising a first driving shaft that is rotatably supported within a headbox and configured to drive a first moving member and a second driving shaft that is rotatably supported within the headbox and configured to drive a second moving member, the first moving member and the second moving member configured to move relative to the headbox, the shading device comprising:
- a first pulley that drives the first driving shaft;
- a second pulley that is disposed at a position different from the first pulley in a longitudinal direction of the headbox and drives the second driving shaft;
- an urging member that is disposed between the first pulley and the second pulley in the longitudinal direction and configured to apply a rotational force to at least one of the first pulley or the second pulley;
- and
- a transmission mechanism that transmits a rotational force of the second pulley to the second driving shaft, wherein:
- the first driving shaft and the second driving shaft are disposed in parallel so that a position of an axial center of the first driving shaft is different from a position of an axial center of the second driving shaft in an orthogonal direction perpendicular to the longitudinal direction,
- a position of an axial center of the second pulley is different from the position of the axial center of the second driving shaft in the orthogonal direction, and
- the transmission mechanism converts a rotation around the axial center of the second pulley to a rotation around the axial center of the second driving shaft and transmits the converted rotation to the second driving shaft.
Dependencies are inferred from the claim text.