Japan, July 14 -- HITACHI LTD has got intellectual property rights for 'ELEVATOR LANDING DOOR DEVICE AND ELEVATOR.' Other related details are as follows:
Application Number: JP,2022-088139
Category (FI): B66B13/08@E
Stage: PROBLEM TO BE SOLVED: To provide an elevator landing door device that reduces collision sound and sliding noise when opening and closing a landing door, and an elevator.SOLUTION: A weight comprises: a weight body set to a weight that allows a door part to be moved; and a weight shoe that is provided on the weight body, is configured such that a width in a horizontal direction orthogonal to a vertical direction is larger than a width of the weight body, and is provided with a pair of groove parts extending in the vertical direction on both ends in the horizontal direction. Also, a weight guide is provided to extend in the vertical direction and comprises a pair of guide pieces inserted into the pair of groove parts. The weight then slidably moves in the vertical direction in a state where the guide pieces are inserted into the groove parts of the weight shoe.SELECTED DRAWING: Figure 3 (Grant)
Filing Date: May 31, 2022
Publication Date: Dec. 13, 2023
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
