Door Mechanism Assembly
Mechanical and electromechanical assembly support for bus, minibus, midibus, special-vehicle and rail door mechanisms.
Reliable door operation depends on every mechanical interface
A door mechanism combines machined parts, shafts, pins, bushes, linkages, brackets, motors, emergency-release components, fasteners and electrical interfaces. The complete assembly must maintain its geometry and operate consistently throughout repeated opening and closing cycles.
TLG SYSTEMS provides assembly support for complete mechanisms, subassemblies, replacement mechanisms and customer-specific door applications.
A mechanism is only as reliable as its interfaces
Shaft alignment, joint clearance, fastening, lubrication and motor connection must be controlled together during assembly.
Door-mechanism production and assembly support
Assembly scope is defined according to the door type, vehicle configuration, electrical architecture, required components and customer documentation.
Complete Mechanism Assembly
Assembly of shafts, bearings, arms, linkages, brackets, fasteners and actuator interfaces.
Actuator Integration
Mechanical integration of electric motors and actuators with the door-mechanism structure.
Linkage Assembly
Assembly and adjustment of arms, joints, rods, pivots and door-connection components.
Emergency-System Integration
Installation support for internal and external emergency-release handles, cables and mechanical interfaces.
Prototype Assembly
Prototype mechanisms for vehicle installation, functional review, interface checks and design development.
Repeat Production
Controlled assembly support for low-volume, small-series and customer-specific vehicle programmes.
Door mechanisms for different vehicle configurations
Mechanism geometry, motor orientation, opening direction and vehicle interfaces can be adapted according to the project requirements.
Single-leaf outward-opening electric door mechanisms
Double-leaf outward-opening electric door mechanisms
Sliding-door mechanical assemblies
Left-hand-drive and right-hand-drive configurations
Front, centre and rear door applications
12 VDC and 24 VDC actuator applications
Customer-specific and replacement mechanisms
Mechanical and electrical elements within the assembly scope
Main shafts, pivot shafts and actuator connection shafts.
Upper arms, lower arms, rods and door-connection elements.
Pivot pins, bearings, bushes, sleeves and spacing components.
Vehicle-side, door-side, motor and mechanism brackets.
Motor, gearbox and mechanical drive interfaces.
Interior and exterior release handles and connections.
Bolts, nuts, washers, locking elements and retainers.
Harness, connector and control-unit connection preparation.
Critical points reviewed during mechanism assembly
Assembly requirements are defined according to the mechanism design, customer drawings and intended vehicle installation.
Shaft and Joint Alignment
Shaft positions, joint movement and assembly geometry are checked against the technical definition.
Clearance and Free Movement
Linkages and rotating components are reviewed for interference, binding and unwanted play.
Fastening and Retention
Fasteners, locking elements and retention components are installed according to assembly requirements.
Lubrication and Protection
Required lubrication points and corrosion-protection conditions are applied according to the project scope.
Information required before assembly begins
From component preparation to completed mechanism
Technical Review
Mechanism configuration, components, drawings and assembly requirements are reviewed.
Component Preparation
Parts, revisions, surface condition and required interfaces are checked before assembly.
Mechanism Assembly
Mechanical and electromechanical components are installed according to the controlled definition.
Functional Review
Movement, interfaces, assembly condition and project-specific checks are completed before delivery.
Door-mechanism assembly for mobility projects
Assembly content, components, adjustment requirements, inspection scope, testing requirements, quantities and delivery conditions are evaluated separately for each project. Final requirements are confirmed through the agreed quotation, drawings, bill of materials and project documentation.
Send your mechanism drawing, component list or sample information
Include the door type, vehicle application, voltage, required quantity and delivery schedule for an initial assembly review.