Driving mechanism for outward sliding vehicle door

Abstract

The invention relates to the field of vehicle doors, and provides a novel outward sliding door driving mechanism for motor buses and rail trains. The driving mechanism is simpler than an original mechanism, and original swing-out mechanisms and up-down linkage mechanisms are omitted. According to the scheme, a gear is used for driving a flexible rack, and the flexible rack is placed in a tubular hard protective jacket; the protective jacket is arranged along a sliding rail to be fixed; a sliding door connecting piece is connected with the flexible rack through an open slot in the protective jacket; and a driver gear is connected and fixed to a vehicle body through a gear shaft of the gear, the driver gear is engaged with the flexible rack, and the flexible rack drives a sliding door to move back and forth through the sliding door connecting piece in the protective jacket.

Description

technical field [0001] The invention relates to the field of vehicle doors, in particular to a vehicle door drive mechanism that automatically slides outward. Background technique [0002] The door, especially the passenger door for passengers to get on and off the bus, is an important part of coaches and rail trains, and is the passage for passengers to get on and off. At present, the passenger doors of buses with large flow are commonly used as inner swing doors; rail trains are smooth sliding doors and outer sliding doors. The inner swing door itself is not sealed from the design structure, occupies the passage space, has the risk of injury to the occupants, and the interior layout is not beautiful, while the outer sliding door is most suitable for use on large-capacity buses; the outer sliding door The existing patented scheme (200620025131 passenger car door external sliding door machine system; 200520024867.7 passenger car door automatic sliding device) and the curren...

AI Technical Summary

Problems solved by technology

The inner swing door itself is not sealed from the design structure, occupies the passage space, has the risk of injury to the occupants, and the interior layout is not beautiful, while the outer sliding door is most suitable for use on large-capacity buses; the outer sliding door The existing patented scheme (200620025131 passenger car door external sliding door machine system; 200520024867.7 passenger car door automatic sliding device) and the currently used external sliding door drive mechanism have a swing mechanism and an up and down mechanism in addition to slideways and roller trolleys. Synchronous mechanism, so the structure is complex and expensive, and it is not easy to be transplanted to the bus. So far, no outer sliding door has been used on the bus; while the transmission part of the outer sliding door structure used on the car has a sheave type, and the rope The service life of the wheel type is limited. The life standard of the door switch of a car is 100,000 times, and the life standard of the door switch of a bus and rail train is 500,000 to 1 million times. The thin steel wire rope of the car sheave type drives the door to run to the corner. Runs frictionally against the slideway, so life is more limited

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