| 摘要 |
PROBLEM TO BE SOLVED: To provide an elevator landing entrance device for effectively restraining warpage of a surface plate of a vertical frame of a jamb generated by thermal expansion at the time of fire by loosening constraints of the surface plate with a reinforcing member or a back plate, and for improving a fire protection performance by preventing detachment of a fire protection shutter. SOLUTION: This elevator landing entrance device comprises a surface plate 4 constituting a decorated face of a vertical frame 2 of a jamb; a reinforcing member 5 enabling the surface plate 4 to slide at a joint part in a horizontal direction at the time of thermal expansion of the surface plate 4; and a fire protecting shutter 10 guided by a rail groove 12 and lowered by an upper frame 3 of the jamb. As another constitution of this invention, the reinforcing member 5 is composed of a material having a linear expansion coefficient larger than the surface plate 4, or ends are rotatably jointed to both ends of the surface plate 4 at stepped positions against a horizontal direction, bridging both ends of the surface plate 4. The rear plate 6 is separated from the surface plate 4 and jointed with the reinforcing member 5. COPYRIGHT: (C)2004,JPO
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