Ceiling Fixture Mounting Assembly with Pivotable Arm
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Solution Overview
Problem
Ceiling-mounted lighting fixtures are difficult to install and service due to their large and heavy nature, requiring complex angular movements and posing stability issues during installation and maintenance, with existing solutions not adequately addressing these challenges.
Innovation Solution
A ceiling fixture mounting assembly featuring a box with vertical sidewalls and mounting plates that allow for easy installation and servicing, with angled support for wiring and a sealing closure for stability, and includes tapered fasteners and slots for precise positioning and secure fastening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a rigid bracket is used to mount the fixture to the ceiling, then the fixture can be securely mounted, but the installation process becomes complex requiring multiple angular movements and is difficult to install
Solution Approach 1:
The mounting bracket incorporates a pivotable arm that can rotate between a first position during installation and a second position for final mounting. This dynamic element allows the installer to easily position the fixture and then secure it in place, eliminating the need for complex angular movements while maintaining secure mounting capability.
2Ease of manufacture
If the fixture is mounted overhead on the ceiling, then it provides proper lighting coverage, but the installer must stand on a ladder and the fixture is vulnerable and unstable during installation and servicing
Solution Approach 1:
The pivotable arm is designed to allow the fixture to be preliminarily positioned in a first position that is accessible and stable during installation. The fixture can be securely held in this preliminary position before final mounting, providing stability without requiring the installer to stand on a ladder. After installation, the arm pivots to the second position for proper overhead lighting coverage.
Data Source
AI summary
A ceiling fixture mounting assembly including a box for affixing to a ceiling and containing electrical wiring, the box having opposite vertical sidewalls each with first and second laterally spaced threaded holes receiving corresponding first and second fasteners, and two vertical mounting plates each projecting upwardly from the fixture to terminate in an upper edge and positioned to overlie one of the sidewalls and each having first and second ways receiving the first and second fasteners, respectively, the first way configured for supporting the fixture at an angle to the box for connecting the wires, wherein the improvement comprises each fastener having a head and a threaded portion and the first and second ways having first and second mounting slots, respectively, each having a lower closed end and an upper open end and sized smaller than the head, the plate having a recess at the closed end configured to receive the head such that it is in vertical alignment with the open end, thereby holding the plate in position against the box.