News Release
The new Passmooth gate system capable of shutting down cool air entering through automatic doors in winter first applied to waiting room of hospital
Nippon Light Metal Company, Ltd.
Nikkei Sangyo Co., Ltd.
capable of shutting down cool air entering through automatic doors in winter
first applied to waiting room of hospital
&The new Passmooth entrance system jointly developed by Nikkei Sangyo Co., Ltd., (President Satoshi Takenaka; Shimizu-ku, Shizuoka City) of the NLM Group; Mori Building Co., Ltd.; Nabco System Co., Ltd.; Nabtesco Corporation; and Panasonic Corporation was adopted this time by the Hospital attached to the Medical School of Teikyo University. In addition, it is the first time that this product was adopted by a building other than that operated by the Mori Building Group, one of the joint developers of the product, and commercial office buildings.
Passmooth of which the double automatic door construction controls the amount of external air inflow is a new entrance system that restricts the draft phenomenon where the wind blows through a skyscraper and that improves air conditioning efficiency. Weight reduced folding doors simultaneously realize quick opening and closing and essential safety. The Hospital attached to the Medical School of Teikyo University (Itabashi-ku, Tokyo) having a problem where cool air flows in through automatic doors in winter decided to introduce Passmooth in the main entrance. Reconstruction was started at the beginning of 2012, and the operation was started in February 6 to realize air conditioning efficiency higher than that from a conventional windshield room.
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| The Hospital attached to the Medical School of Teikyo University | Passmooth installed in six passages of the main entrance |
Moreover, these products were installed at the Shanghai World Financial Center (Shanghai, China), the entrance of observation platform of Roppongi Hills Tower (Minato-ku, Tokyo), etc.
・Passmooth (New lightweight entrance system)
| Passmooth is a new gate system realizing energy saving performance and reinforcement of safety and restricts the draft phenomenon in which wind blows through a skyscraper and on the control of differences in atmospheric pressure and temperature between indoors and outdoors. Furthermore, safety design such as the adoption of transmission type sensors and the minimization of clearances between the movable parts resulted in being awarded the Universal Safety Department Prize of the 4th Kids Design Prize (Sponsored by Special Non-profit Corporation Kids Design Conference and supported by the Ministry of Economy and Industry) in 2010. |  |
Basic operation of Passmooth
Main Features
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Energy property |
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Safety |
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| （※） | Interlock control: Mechanism with the double automatic door construction in which one side door always opens, but both side doors never open, thus increasing the windshield effect and controlling the changes in temperature and atmospheric pressure inside a building. |
[Information for reference]
Amount of external air inflow decreases by approx. 75% in comparison with that of a slide type automatic door (results of buildings operated by Mori Building)
The Shanghai World Financial Center (Shanghai, China) operated by the Mori Building Group showed the operation result in winter in 2009 where the amount of external air inflow decreased approx. 75% (passage by one person) in comparison with that of a slide type automatic door, leading to an approx. 5.6% reduction in gas consumption for air conditioning of the entire building.
1 General slide type automatic door
*In the condition that a person walks into the entrance area at a walking speed of 1.0 m/sec.
2 Ceiling sensor detection area [Door opening height]
3 Opening width Time
4 Opening time and area at one person passage
Wind speed (assumed)
5 Volume of external air inflow at one person passage
6 Decrease by approx. 75%
7 December 2009
Consumption of gas for air conditioning was reduced by approx. 5.6% in comparison with that of the previous year
The entire Shanghai World Financial Center
8 Passmooth (Semi-interlock*)
9 [Door opening height]
10 Opening width Time
11 Opening time and area at one person passage
Wind speed (assumed)
12 Volume of external air inflow at one person passage
13 *Semi-interlock: Mechanism where both the entry and exit doors never open simultaneously in double-door construction in order to heighten the windshield effect and restrict the changes in temperature and atmospheric pressure inside a building is called an interlock control. The semi-interlock can improve passability without losing the windshield effect because one side door starts opening action when the other side door is closed to the specified position where the windshield effect is obtained.
[Inquiry for this information]
Konishi, Functional Product Group, Nikkei Sangyo Co., Ltd.
Tel: +81-3-5461-2007 Fax：+81-3-5461-2077 Website: www.nikkeisangyo.co.jp