EP0801021A2 - Dispositif de sécurité pour un transporteur de passagers - Google Patents
Dispositif de sécurité pour un transporteur de passagers Download PDFInfo
- Publication number
- EP0801021A2 EP0801021A2 EP97105873A EP97105873A EP0801021A2 EP 0801021 A2 EP0801021 A2 EP 0801021A2 EP 97105873 A EP97105873 A EP 97105873A EP 97105873 A EP97105873 A EP 97105873A EP 0801021 A2 EP0801021 A2 EP 0801021A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- passenger
- combplate
- passenger conveyor
- conveyor
- platforms
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B29/00—Safety devices of escalators or moving walkways
- B66B29/005—Applications of security monitors
Definitions
- the present invention relates to passenger conveyors, and more particularly to safety devices for passenger conveyors such as escalators and moving walks.
- Passenger conveyors such as escalators and moving walks, include a plurality of sequentially connected platforms that move through a closed loop path.
- the platforms may be either escalator steps or moving walk pallets.
- the platforms go underneath another combplate and around a sprocket for the return to the first landing.
- a safety device includes a timer connected to a passenger detecting sensor disposed proximate to the combplate. If a passenger is detected for a time period exceeding a predetermined time threshold, the passenger conveyor is stopped.
- a passenger conveyor is equipped with: a comb that is arranged on the exiting side; platforms that move underneath this comb; a photosensor that is arranged very close to the front edge of the aforementioned comb; a driving device which moves the platforms from the entering side to the exiting side, and a controller that controls the driving device and is equipped with a timer, and an instruction to stop driving, which is sent out from the controller to the driving device after the time in which an object that is detected by the photo-sensor exceeds a predetermined time threshold.
- the feature of the timer connected to the passenger detecting sensor provides the advantage of preventing injury to passengers while minimizing false shut-downs of the passenger conveyor. If an object becomes lodged between the combplate and step, the sensor will detect the continued presence of the passenger associated with the object and, after the timer threshold expires, shut down the conveyor. This device avoids the false shut downs associated with mechanical switches connected to the combplate.
- Figure 1 is a perspective view which illustrates an embodiment of an escalator having a safety apparatus according to the present invention.
- Figure 2 is a cross-sectional side view of the escalator of Figure 1.
- Figure 1 as well as Figure 2 are diagrams which illustrate a particular embodiment of a safety apparatus according to the present invention as applied to an escalator.
- the escalator includes steps 1, and these steps (1) are attached to a step chain (not illustrated).
- a pair of balustrades 2,3 are vertically installed on both sides of the steps 1, and hand rails 4,5 are provided over the balustrades 2,3.
- Skirt guards 6,7 are provided at the lower part of the balustrades 2,3.
- each step 1 is equipped with a tread 1a on its top face, and a riser 1b on its front face, and grooves are formed on them in the direction in which they move. Steps 1 are moved from the entering side to the exiting side 8 by a machine 9 (driving device). During this, the steps 1 come out from underneath the comb at the entering side (not illustrated), move to the exiting side 8, and they go underneath a combplate 10 that is arranged on a floor plate 11 at the exiting side 8 as illustrated in Figure 2.
- the front edge 10a of the comb 10 is formed into the shape of a comb, and this front edge engages with the grooves that are formed in the tread 1a of the step 1.
- the photosensor shown in Figs. 1 and 2 is an exemplary embodiment of a passenger detecting sensor. Other types of passenger detecting sensors may also be used to carry out the invention.
- this object which is being detected by the photosensor 12
- this signal is output to a controller 13, and this detection time is counted by a timer at the controller 13 by the subtraction method.
- the legs of passengers also pass the front edge 10a of the comb 10, and therefore, the passenger's legs are also detected.
- the detection time, however, for the passengers is minimal, i.e. less than 1 second.
- a signal for stopping the operation of the escalator is output from the control panel 13 to the machine 9 when the detection time exceeds a predetermined time threshold.
- a suggested amount for the time threshold is 5 seconds, although the setting of the time threshold can vary according to the operational condition. It should be noted that the operational efficiency of the escalator decreases when the escalator comes to frequent stops.
Landscapes
- Escalators And Moving Walkways (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8698796A JPH09278337A (ja) | 1996-04-10 | 1996-04-10 | 人移送装置の安全装置 |
JP86987/96 | 1996-04-10 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0801021A2 true EP0801021A2 (fr) | 1997-10-15 |
EP0801021A3 EP0801021A3 (fr) | 1998-04-29 |
Family
ID=13902225
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97105873A Withdrawn EP0801021A3 (fr) | 1996-04-10 | 1997-04-09 | Dispositif de sécurité pour un transporteur de passagers |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0801021A3 (fr) |
JP (1) | JPH09278337A (fr) |
CN (1) | CN1165778A (fr) |
BR (1) | BR9701726A (fr) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6520310B1 (en) | 2001-12-27 | 2003-02-18 | Inventio Ag | Combplate load and obstruction sensor apparatus |
FR2943650A1 (fr) * | 2009-03-27 | 2010-10-01 | Ficap | Dispositif de securite et de secours pour tapis roulant de montagne. |
US10071884B2 (en) | 2016-07-29 | 2018-09-11 | Otis Elevator Company | Detection of state of engagement between step and comb plate of passenger conveyor |
JP2021066537A (ja) * | 2019-10-18 | 2021-04-30 | 株式会社日立ビルシステム | ステップ踏板浮き上がり検知装置及びステップ踏板浮き上がり検知システム |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004033355A1 (fr) * | 2002-09-13 | 2004-04-22 | Otis Elevator Company | Dispositif de controle de securite pour systeme de transport de passagers |
JP5452885B2 (ja) * | 2008-05-23 | 2014-03-26 | 株式会社日立製作所 | 乗客コンベア |
JP2011225344A (ja) * | 2010-04-21 | 2011-11-10 | Hitachi Ltd | 乗客コンベア |
CN105540401A (zh) * | 2016-01-28 | 2016-05-04 | 浙江梅轮电梯股份有限公司 | 一种扶梯梳齿夹人保护装置及其使用方法 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0325293A1 (fr) * | 1988-01-21 | 1989-07-26 | Otis Elevator Company | Dispositif de sécurité pour peignes d'escaliers roulants |
JPH0379590A (ja) * | 1989-08-23 | 1991-04-04 | Mitsubishi Electric Corp | 乗客コンベヤの安全装置 |
WO1997014644A1 (fr) * | 1995-10-18 | 1997-04-24 | Loderway Pty. Limited | Systemes pour le transport de passagers debout |
-
1996
- 1996-04-10 JP JP8698796A patent/JPH09278337A/ja not_active Withdrawn
-
1997
- 1997-04-08 BR BR9701726A patent/BR9701726A/pt not_active Application Discontinuation
- 1997-04-09 CN CN 97110272 patent/CN1165778A/zh active Pending
- 1997-04-09 EP EP97105873A patent/EP0801021A3/fr not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0325293A1 (fr) * | 1988-01-21 | 1989-07-26 | Otis Elevator Company | Dispositif de sécurité pour peignes d'escaliers roulants |
JPH0379590A (ja) * | 1989-08-23 | 1991-04-04 | Mitsubishi Electric Corp | 乗客コンベヤの安全装置 |
WO1997014644A1 (fr) * | 1995-10-18 | 1997-04-24 | Loderway Pty. Limited | Systemes pour le transport de passagers debout |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 015, no. 249 (M-1128), 25 June 1991 & JP 03 079590 A (MITSUBISHI ELECTRIC CORP), 4 April 1991, * |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6520310B1 (en) | 2001-12-27 | 2003-02-18 | Inventio Ag | Combplate load and obstruction sensor apparatus |
FR2943650A1 (fr) * | 2009-03-27 | 2010-10-01 | Ficap | Dispositif de securite et de secours pour tapis roulant de montagne. |
US8365897B2 (en) | 2009-03-27 | 2013-02-05 | Ficap | Safety and rescue device for mountain conveyor belt |
US10071884B2 (en) | 2016-07-29 | 2018-09-11 | Otis Elevator Company | Detection of state of engagement between step and comb plate of passenger conveyor |
JP2021066537A (ja) * | 2019-10-18 | 2021-04-30 | 株式会社日立ビルシステム | ステップ踏板浮き上がり検知装置及びステップ踏板浮き上がり検知システム |
Also Published As
Publication number | Publication date |
---|---|
JPH09278337A (ja) | 1997-10-28 |
CN1165778A (zh) | 1997-11-26 |
BR9701726A (pt) | 1998-11-10 |
EP0801021A3 (fr) | 1998-04-29 |
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18D | Application deemed to be withdrawn |
Effective date: 19981030 |