Conveyance Carriage Engine Assembly Lifter
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Solution Overview
Problem
Conventional conveyance apparatuses for assembling automobiles, such as those using overhead-type carriers or conveyance carriages with lifters, incur high material and installation costs due to the need for extensive structural support and multiple lifters, leading to complex and costly facility setups.
Innovation Solution
A conveyance apparatus that supports the vehicle body at a predetermined height using a column and object support devices on a conveyance carriage, with a synchronous traveling carriage equipped with a lifter that elevates an assembly-part support base to facilitate engine assembly from below, eliminating the need for lifters on each conveyance carriage and reducing the number of synchronous traveling carriages required.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If an overhead-type carrier is used to convey the vehicle body, then the vehicle body can be conveyed at a predetermined height, but the material cost increases and the construction period extends due to the need for structural support in the air
Solution Approach 1:
The patent extracts the vehicle body support function from the overhead carrier system and relocates it to a conveyance carriage on the floor surface. The vehicle body is supported by support means (columns and support devices) mounted on the conveyance carriage rather than being suspended from an overhead structure, thereby eliminating the need for complex air-supported structural members.
Solution Approach 2:
The patent introduces a conveyance carriage as an intermediary carrier that travels on the floor surface and provides support means for the vehicle body. This intermediary approach allows the vehicle body to be conveyed at a predetermined height without requiring direct overhead structural support, thus simplifying facility construction.
2Ease of operation
If lifters are provided for all conveyance carriages to lift engines one by one, then the engine assembly work can be performed, but the facility cost becomes very expensive
Solution Approach 1:
The patent merges the engine conveyance function and the lifting function into a single integrated engine conveyance carriage. This carriage is equipped with both engine support means and a lifter, allowing it to perform multiple functions. By combining these functions, the system eliminates the need for separate lifters on all conveyance carriages, reducing overall facility cost.
Solution Approach 2:
The engine conveyance carriage is designed with multi-functionality, serving both as a conveyance vehicle for the engine and as a lifting device. The carriage includes engine support means for positioning the engine and a lifter for raising the engine to the vehicle body, making a single carriage perform the roles that would traditionally require multiple separate devices.
3Device complexity
If the engine conveyance carriage is ridden on the conveyance carriage, then the lifter is not needed for the conveyance carriage, but the overall facility cost remains high due to the need for multiple synchronous traveling carriages
Solution Approach 1:
The patent combines the engine conveyance carriage and the synchronous traveling carriage into a single integrated unit. The engine conveyance carriage is equipped with a lifter and travels synchronously with the vehicle body conveyance carriage, merging the functions of engine handling and synchronized movement. This integration reduces the need for separate synchronous traveling carriages and lowers overall facility cost.
Data Source
AI summary
A conveyance apparatus has a conveyance carriage for conveying a vehicle body, a vehicle-body support, a synchronous traveling carriage capable of traveling in synchronization with the conveyance carriage from a start point position to an end point position, a lifter provided with an elevating base that ascends via an aperture arranged on a floor surface of the conveyance carriage, and an elevating table for supporting an engine of an engine carrying-in carriage that stops at a fixed stop position and is lifted up to a predetermined height by the elevating base of the lifter.