Operating Theater Lighting Handle With Pivoting Bayonet Lock
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Solution Overview
Problem
Existing medical lighting devices in operating theaters face challenges in securely and easily attaching the handle to the body, which is typically screwed on, leading to complex assembly and potential instability.
Innovation Solution
A lighting device with a body equipped with attachment studs and indexing means, and a handle with a base that pivots between locked and unlocked positions, using bayonet-type locking means for secure attachment, allowing easy mounting and disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the handle is screwed onto the body, then the attachment is secure, but the assembly and disassembly become complex and time-consuming
Solution Approach 1:
The attachment mechanism is divided into distinct functional elements: attachment studs on the body, oblong holes in the base, and indexing means with pushers. This segmentation allows each component to perform its specific function independently, enabling quick bayonet-style attachment while maintaining secure fixation.
Solution Approach 2:
The base is designed to pivot dynamically between locked and unlocked positions relative to the body. The indexing means includes pushers that can be activated to release the locking condition, allowing the base to rotate freely when needed and lock securely when engaged, thus providing both ease of operation and attachment security.
2Stability of the object's composition
If the handle is screwed onto the body, then the attachment is stable, but the device complexity increases
Solution Approach 1:
The locking and positioning functions are merged into a single bayonet-style rotation mechanism. The oblong holes and attachment studs work together with the indexing means to provide both stability through secure locking and simplicity by eliminating separate screw-fastening operations.
Solution Approach 2:
The indexing means with elastic pushers provides self-aligning and self-locking functionality. When the base rotates to the locked position, the pushers automatically engage with the indexing elements on the body, providing stable attachment without requiring complex adjustment or additional fastening steps.
3Manufacturing precision
If the base is fixed rigidly to the body, then the positioning is precise, but the ease of mounting and dismounting decreases
Solution Approach 1:
The base transitions from a static fixed state to a dynamic state where it can pivot between locked and unlocked positions. The indexing means ensures precise positioning when locked, while the bayonet mechanism allows easy mounting and dismounting through simple rotation and translation movements.
Solution Approach 2:
The oblong holes act as intermediaries between the attachment studs and the locking mechanism. They guide the studs during the pivoting motion and maintain precise alignment when locked, while also allowing the base to be easily removed when unlocked by permitting axial translation.
Data Source
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AI summary
This document describes a lighting device (1) comprising a body (4) equipped with at least one lighting module and a handle (9) mounted on the body (4), characterized in that the body (4) has at least one hook and indexing means (14, 23), the handle (9) having at least one base (17) capable of pivoting about an axis (X) relative to the body (4) between a first angular position forming an unlocked position of the base (17) relative to the body (4) and a second angular position forming a locked position of the base (17) on the body (4), said base (17) having at least one oblong hole extending circumferentially around the axis (X) and capable of cooperating with the hook.