Trestle Bracket and Stabilizing Brace for Safety
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Solution Overview
Problem
Builder's trestles lack adequate safety barriers and stability, especially when used at maximum height, and existing solutions for safety rails and ladder support are hazardous or inefficient.
Innovation Solution
A builder's trestle system with a removable upright and tubular socket for additional safety rails, a stabilizing brace with a captive latch for enhanced stability, a telescopic rail with a resilient latch to prevent parts from sliding free, a ladder support bracket for secure ladder placement, and a transverse kickboard bracket for secure platform edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a removable upright with tubular socket is added to provide additional safety barrier, then safety protection is improved, but device complexity increases
Solution Approach 1:
The safety barrier system is divided into a fixed upward extension and a removable upright that can be independently added or removed. The tubular socket provides a simple connection interface that allows workers to assemble the additional safety barrier without tools, enabling the system to be segmented into modular components that can be configured based on specific safety needs.
2Productivity
If trestles are used at maximum height to increase working platform height, then productivity is improved, but stability deteriorates
Solution Approach 1:
The stabilizing brace introduces a diagonal dimension to the trestle structure, connecting the upward extension to the crossmember at an angle. This diagonal bracing creates triangular support elements that significantly enhance structural stability without restricting the vertical height of the working platform, allowing the trestle to be used at maximum height while maintaining stability.
3Ease of manufacture
If traditional safety rail fittings are used, then manufacturing simplicity is maintained, but debris accumulation obstructs the socket
Solution Approach 1:
Instead of designing a closed socket that could trap debris, the invention uses a tubular socket with an open upper end. This inverted approach allows debris such as mortar droppings to fall through the opening rather than accumulating inside the socket, maintaining the simple tubular manufacturing process while eliminating the obstruction problem through the opposite design configuration.
4Stability of the object's composition
If a stabilizing brace with movable latch is added, then trestle stability is improved, but device complexity increases
Solution Approach 1:
The movable latch is designed to be captive on the brace and operates automatically through gravity and spring mechanisms. When the brace is positioned between the upward extension and crossmember, the latch self-engages to lock the assembly without requiring tools or specialist skills. This self-service mechanism provides stable locking while minimizing the complexity of operation and installation.
5Adaptability or versatility
If telescopic safety rails are used to allow various spacings, then adaptability is improved, but reliability deteriorates due to parts sliding free
Solution Approach 1:
The resilient latch acts as an intermediary component between the inner and outer telescopic parts. This latch mechanism provides a positive locking connection that prevents the inner part from sliding free while still allowing controlled telescopic movement for spacing adjustment. The latch engages with the telescopic components to maintain reliability during both extended and retracted positions.
Data Source
AI summary
A bracket (60) for securing a first kickboard (62) transversely of a second kickboard (54) comprises a socket (64) for receiving an end of the first kickboard and a clip (70) for securing the bracket to the second kickboard, the clip comprising a lateral extension (76) aligned with the longitudinal axis of the second kickboard for stabilizing the bracket thereon. Also disclosed are (1) a telescopic rail (46) for use in forming a guard or safety barrier for builders' trestles, staging, scaffolding or the like, comprising inner and outer telescopic parts (80, 82), in which the inner part is prevented from sliding free of the outer part in use; (2) a brace for stabilizing adjacent trestles; (3) a ladder support bracket; (4) removable safety rail components and (5) a longitudinal kickboard bracket attached to a trestle crossmember.


