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Linear activated lock device for door system of transporting vehicle

A technology of transport vehicles and linear actuators, which is applied in vehicle locks, hydraulic/pneumatic locks, locks operated by non-mechanical transmission, etc., and can solve the problems of passengers squeezing the doors, door lock mechanism preload pressure strengthening, etc.

Inactive Publication Date: 2003-04-02
WESTINGHOUSE AIR BRAKE TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, in the event of an overloaded transport vehicle, passengers may squeeze the door, causing further preload pressure on the door lock mechanism
[0006] Much of the existing technology is to use very complicated locks on the door, which leads to many failures

Method used

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  • Linear activated lock device for door system of transporting vehicle
  • Linear activated lock device for door system of transporting vehicle
  • Linear activated lock device for door system of transporting vehicle

Examples

Experimental program
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Embodiment Construction

[0025] Before proceeding to describe the present invention in detail, it should be noted that the same elements having the same function are denoted by the same numerals in several drawings for the sake of clear understanding of the present invention. Moreover, the detailed description of the present invention is directed to the structure of double sliding doors that are opened simultaneously. Obviously, for those skilled in the art, the operation of the single-leaf door lock device in the fully locked position and the unlocked position is consistent with the operation of the double sliding door, the difference is only , there is also an additional element corresponding to the second door for the double sliding door.

[0026] The present invention overcomes the difficulties in door lock application by using a rotatable locking arm and at least one linear actuator rotatably connected to said rotatable locking arm. The use of a self-lubricating method reduces the friction betwe...

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PUM

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Abstract

A locking device (10) for attachment to a fixed portion of a transit vehicle door system is for locking one or more doors of the transit vehicle door system in either a fully locked position or a pushback lock position. The locking device (10) has a simple lock arm (30), biased toward the locking position and rotatably attached to the fixed portion of the transit vehicle door system at a first pivot (32) of the rotary lock arm (30), the rotary lock arm (30) having at least one door engagement portion for engaging a portion of the door(s) for locking the door(s) when the rotary lock arm (30) is in at least one of the locking position and the pushback position thereof. A linear actuator (20), rotating the lock arm (30) to the unlocked position when energized, is attached to the fixed portion of the transit vehicle door system and connected to a second pivot (34) of the lock arm, said second pivot (34) offset from the first pivot (32). A lock actuator sensing switch (40) provides a feedback on the actuator position to the transit vehicle control system. Means are provided within linear actuator to manually rotate lock arm toward unlocked position for opening doors during an emergency.

Description

[0001] related application [0002] Most relevant to the present invention is US Patent Application Serial No. 60 / 271,350, filed February 23, 2001. The entire contents of this application are hereby incorporated by reference. technical field [0003] The present invention relates generally to transit vehicle door lock systems and, in particular, the present invention relates to linearly actuated transit vehicle door locks having a snapback feature. Background technique [0004] Door locks are a major operational concern for transportation vehicle doors, especially in the large transportation industry. These door locks must provide a reliable system for locking the door panel in the event of a mechanical failure of the door. Its purpose is to prevent passengers from being thrown out of the vehicle during the operation of the vehicle due to unintentional opening of the door. However, the door must be able to perform a normal door opening function when receiving a legal door...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E05B17/00E05B47/00E05B47/02E05B51/02E05B63/00E05B65/00E05B65/08E05B65/12E05B65/36E05B77/50E05C7/00
CPCE05B81/64E05B77/00E05B63/0069E05B83/40E05B83/363E05B81/10E05B83/42E05B65/0829E05B17/007E05B77/50E05B77/46E05B47/0002E05B47/023E05B51/02E05C2007/007E05B2047/0067E05B65/0811E05B65/0003
Inventor R·L·奥克利R·佩恩
Owner WESTINGHOUSE AIR BRAKE TECH CORP
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