Title:
SCREEN DEVICE FOR PROJECTION AND METHOD FOR REPLACING SCREEN DEVICE FOR PROJECTION
Document Type and Number:
Japanese Patent JP2023035605
Kind Code:
A
Abstract:
To provide a screen for projection with which it is possible to carry out the work of replacing a screen sheet having been wound and urged, easily with fewer replacement members.SOLUTION: A screen for projection comprises a screen sheet 2, a winding roll 3 for winding the screen sheet 2 and connected to the base end side of the screen sheet 2, a support part 4 for rotatably supporting the winding roll 3, and a rotationally urging member for urging the winding roll 3 to rotate, and is designed to cause the winding roll 3 to rotate around the axis of the winding roll 3 by an urging force of the rotationally urging member and wind up the screen sheet 2. A lock member 6 is provided, which is engaged with the winding roll 3 and the support part 4 and enables the rotation of the winding roll 3 to be temporarily stopped, and the screen sheet 2 is further made to be attachable/removable from the winding roll 3, enabling the screen sheet 2 to be replaced with a screen sheet 8 for replacement which is wound up on a cylindrical winding core 15 while the rotation of the winding roll 3 is temporarily stopped by the lock member 6.SELECTED DRAWING: Figure 7
Inventors:
MIYAKE NOBUHISA
SAKAI TOMOKI
SAKAI TOMOKI
Application Number:
JP2021142600A
Publication Date:
March 13, 2023
Filing Date:
September 01, 2021
Export Citation:
Assignee:
OSM KK
International Classes:
B65H18/04; G03B21/58; B65H18/10; B65H19/28; B65H75/00; B65H75/38; G03B21/64
Attorney, Agent or Firm:
Yoshihide Yanagino
Takao Yanagino
Norio Morioka
Sekiguchi Hisayu
Kiyozo Hori
Takao Yanagino
Norio Morioka
Sekiguchi Hisayu
Kiyozo Hori
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