US 6,662,500 B2Granted

Train door apparatus

AssigneeFuji Electric Co., Ltd.

InventorAkio Inage

Life of this patent

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Abstract

A door apparatus for opening and closing two doors supported on a horizontal door rail includes an actuator connected to one of the two doors for driving the same, a direction conversion mechanism connected to the other of the two doors for transmitting a movement of the actuator to the other door to move the same and having an engaging portion formed of a first stage and a second stage, and a locking mechanism having a latch engaging the direction conversion mechanism for locking the two doors and non-engaging the direction conversion mechanism for allowing the two doors to open. The latch engages the first stage of the engaging portion to semi-lock the doors to be able to open manually, and engages the second stage of the engaging portion to lock the doors completely.

Claims6

Dependent claims

A door apparatus for opening and closing two doors supported on a horizontal door rail, comprising,

an actuator connected to one of the two doors for driving the one door,
a direction conversion mechanism connected to the other of the two doors for transmitting a movement of the one door to the other door to move the other door in a direction opposite to the movement of the one door, said direction conversion mechanism having a first stage engaging portion and a second stage engaging portion smaller in size than the first stage engaging portion and situated adjacent to the first stage engaging portion,
a locking mechanism having a latch engaging the direction conversion mechanism for locking the two doors and non-engaging the direction conversion mechanism for allowing the two doors to open, said latch being located in the first stage engaging portion to semi-lock the doors to be able to open manually and in the second stage engaging portion to lock the doors completely, and
a stopper mechanism cooperating with the direction conversion mechanism for locating the latch at the first stage engaging portion, said stopper mechanism releasing the latch located in the first stage engaging portion to allow the latch to enter the second stage engaging portion when a predetermined condition is satisfied.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 10/155,243Filed 28 May 2002
Priority: JP 2001-16438331 May 2001
Published: US 2003/0126797 A110 Jul 2003
Granted: 16 Dec 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification10 codes

B61D 19/02
Door arrangements specially adapted for rail vehicles: for carriages
E05F 15/40
Power-operated mechanisms for wings: safety devices, e.g. detection of obstructions or end positions
E05F 15/53
Using fluid-pressure actuators: for swinging wings
E05Y 2201/214
Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor: disengaging means

Family

US 2003/0126797 A1Pre-grant publication · published 10 Jul 2003
US 6,662,500 B2This patent

From the US filing history. Foreign family members aren’t listed.

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Abstract

Facts

Application

10/155,243Filed 28 May 2002

Priority

JP 2001-16438331 May 2001

Published

US 2003/0126797 A110 Jul 2003

Granted

16 Dec 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

B61D 19/02
Door arrangements specially adapted for rail vehicles: for carriages
E05F 15/40
Power-operated mechanisms for wings: safety devices, e.g. detection of obstructions or end positions
E05F 15/53
Using fluid-pressure actuators: for swinging wings
E05Y 2201/214
Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor: disengaging means