Clamping Apparatus With Vertical Load Passage
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Solution Overview
Problem
Existing clamping apparatuses are limited by the length of their arms, making it difficult to lift tall loads due to increased bulkiness, maneuvering challenges, and higher bending moments, which restricts their use and workplace height.
Innovation Solution
A clamping apparatus with a frame and pivotable clamping arms that allow loads to pass vertically through an opening, enabling the arms to be shorter while still grasping tall loads, featuring a four-bar linkage mechanism and hydraulic actuators for movement, allowing for compact and lightweight design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the clamping arms are made longer to lift taller loads, then the height of load that can be lifted is improved, but the clamping apparatus becomes more bulky and difficult to maneuver
Solution Approach 1:
The clamping arms are mounted to move in a vertical plane rather than extending horizontally, changing the dimension of operation from horizontal to vertical. This allows the arms to reach tall loads without increasing the horizontal footprint or bulkiness of the apparatus, resolving the contradiction between reach height and maneuverability.
Solution Approach 2:
The clamping arms are made movable and adjustable in position, allowing the apparatus to adapt its configuration dynamically. The arms can be repositioned vertically along the frame members, enabling the system to handle loads of varying heights without requiring a fixed long arm configuration, thus maintaining compactness while improving operational flexibility.
2Length of moving object
If the clamping arms are made longer to lift taller loads, then the height of load that can be lifted is improved, but the clamping apparatus height must be increased to clear the top of the load
Solution Approach 1:
The clamping arms operate in a vertical plane perpendicular to the frame height, allowing them to reach tall loads without increasing the vertical height of the apparatus itself. This dimensional reorientation enables the arms to extend outward and upward to grasp tall objects while the apparatus maintains a compact vertical profile.
Solution Approach 2:
The clamping apparatus is divided into separate functional components: the frame structure and the movable clamping arms. The arms are mounted on the frame but can move independently in a vertical plane, allowing the frame height to remain compact while the arms extend to reach tall loads, effectively separating the support structure height from the operational reach height.
3Length of moving object
If the clamping arms are made longer to lift taller loads, then the height of load that can be lifted is improved, but the bending moments applied to the clamping arms increase requiring heavier arms
Solution Approach 1:
The clamping arms are designed as movable components that can be repositioned along the frame, allowing the effective lever arm length to be adjusted based on load requirements. This dynamic positioning reduces the maximum bending moment compared to fixed long arms, enabling the use of lighterweight arm constructions while still handling tall loads when needed.
Solution Approach 2:
By mounting the clamping arms to move in a vertical plane rather than extending horizontally from a fixed point, the structural loading is fundamentally changed. The arms experience different moment arms and force distributions, allowing for optimized, lighterweight designs that can still effectively grasp and lift tall loads through vertical motion rather than horizontal leverage.
Data Source
AI summary
A clamping apparatus has a frame and a plurality of clamping arms mounted on the frame for grasping and releasing a load. The frame defines an opening through which a load grasped by the clamping arms can pass to above the frame.