Removable Leveling Hanger for Consistent Joist Heights
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Solution Overview
Problem
Existing joist hangers are cumbersome to install and require meticulous measurements due to dimensional inconsistencies in lumber, leading to difficulties in leveling and structural integrity issues.
Innovation Solution
A hanger system comprising a base member and a removable leveling member, allowing for vertical adjustment and detachment, which accommodates varying joist heights and ensures consistent leveling by enabling precise attachment to a ledger.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional joist hangers are used without adjustment mechanisms, then the installation process is simple, but the leveling precision and structural integrity deteriorate due to lumber dimensional inconsistencies
Solution Approach 1:
The hanger incorporates an adjustable height mechanism with vertical slots and movable positioning holes that allow the hanger to dynamically adapt to varying joist heights. The adjustment mechanism enables the hanger to change its effective height by repositioning the joist support surface relative to the mounting flange, thereby achieving precise leveling while maintaining a relatively simple overall structure.
Solution Approach 2:
The hanger utilizes changeable geometric parameters through its adjustment mechanism, specifically varying the vertical distance between the mounting flange and the joist support surface. By providing multiple selectable height positions through the slot and hole system, the hanger can adjust its dimensional parameters to compensate for lumber inconsistencies and achieve precise leveling.
2Adaptability or versatility
If adjustable height mechanisms are added to accommodate lumber variations, then the adaptability improves, but the installation time and complexity increase
Solution Approach 1:
The hanger provides pre-drilled vertical slots with multiple positioned holes that allow installers to quickly select and adjust to the appropriate height without requiring complex measurements or custom drilling during installation. The adjustment mechanism is designed to enable rapid height selection and locking, reducing the time required to accommodate lumber variations.
Solution Approach 2:
The hanger is divided into functional segments including the mounting flange, vertical adjustment slots, joist support surface, and fastening mechanisms. This segmentation allows the adjustment function to be isolated and optimized independently, enabling quick height changes without affecting other parts of the hanger, thereby reducing overall installation time.
3Manufacturing precision
If precise measurements and adjustments are required for each joist, then the leveling accuracy improves, but the installation efficiency and productivity decrease
Solution Approach 1:
The hanger's adjustment mechanism is designed to be self-aligning and self-adjusting, where the vertical slots and positioning holes guide the installer to the correct height without requiring complex measurement tools or procedures. The mechanism itself provides the reference system for accurate leveling, eliminating the need for external measurement and calculation processes.
Solution Approach 2:
The dynamic adjustment capability allows the hanger to be quickly configured to the correct height by simply moving the joist support surface to the appropriate position in the vertical slots, rather than requiring precise pre-measurement and fixed positioning. This dynamic adjustment maintains high installation speed while achieving accurate leveling.
Data Source
AI summary
An adjustable hanger for attaching an elongate beam to a support member has abase member with opposite sides and a support web. A leveling member with a top panel is attachable to the base member in a vertically reciprocal engagement. The top panel includes a rear flange for supporting on a surface of a support member, whereupon the support web is parallel with the surface of the support member. The leveling member is movable relative to the base member to accommodate elongate beams having different height dimensions. Once the beam is attached to the support member via fasteners, the leveling member may be detached from the base member. The leveling member or base member may have cooperative posts or legs and slots to facilitate engagement between them. A breakable cuff in the base member may engage a post of the leveling member to allow reciprocation followed by detachment.