Drawer Slide Locking Mechanism for Controlled Access Without Bulkiness
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Solution Overview
Problem
Drawer slides do not provide adequate security for contents while maintaining easy access, as they offer uncontrolled access which may not be suitable for valuable or personal items, and secure storage solutions like safes are often bulky and not suitable for cabinet integration.
Innovation Solution
A drawer slide with a lock mechanism that includes an outer slide member, an inner slide member with a latch arm, a latch receiver, a lever arm, and a motor to control the locking and unlocking of the drawer, allowing for controlled access while maintaining the ease of use of a drawer slide.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a drawer slide provides easy access to contents, then ease of operation is improved, but security is worsened
Solution Approach 1:
The drawer slide system is divided into two independent members: a stationary outer slide member mounted to the cabinet and a movable inner slide member mounted to the drawer. This segmentation allows the outer member to provide structural support and security features while the inner member provides smooth movement, resolving the contradiction between ease of operation and security.
Solution Approach 2:
A latch mechanism acts as an intermediary between the inner and outer slide members. The latch receiver on the outer member and latch arm on the inner member create a controlled interface that allows the drawer to be securely held in closed position while still enabling easy opening through the release mechanism, thus maintaining both security and ease of operation.
2Reliability
If a lock mechanism is added to provide security, then security is improved, but device complexity is worsened
Solution Approach 1:
The locking function is merged with the existing drawer slide structure rather than being added as a separate component. The latch mechanism is integrated into the relationship between the inner and outer slide members, using their relative movement to automatically engage and disengage the latch, thus providing security without significantly increasing device complexity.
Solution Approach 2:
The latch mechanism is designed to automatically engage when the drawer is closed and automatically disengage when the drawer is opened, without requiring manual intervention. The relative movement between the inner and outer slide members self-actuates the latch, providing security while maintaining simplicity of operation.
3Reliability
If a secure storage solution like a safe is used, then security is improved, but volume is worsened
Solution Approach 1:
The locking mechanism is nested within the existing drawer slide structure. The latch receiver and latch arm are positioned within the space already defined by the inner and outer slide members, utilizing the existing structural volume rather than adding external bulk, thus providing secure storage without the bulkiness of traditional safes.
Solution Approach 2:
The drawer slide structure serves multiple functions: it provides the sliding mechanism for easy access, structural support for the drawer, and integrated locking capability for security. This multi-functionality eliminates the need for separate secure storage structures like safes, reducing overall volume while maintaining security.
Data Source
AI summary
A drawer slide with lock mechanism has an elongated outer slide member extendably coupled to an inner slide member. A latch arm or pin is fixed to the inner slide member for latching by a lock mechanism fixed to the outer slide member. The lock mechanism uses a latch receiver that rotates with respect to the lock mechanism and is in a travel path of the latch arm. A lever arm rotates with respect to the lock mechanism and is positionable to block rotation of the latch receiver in a locked position to retain the latch arm. A motor drives a cam to position the lever arm to free the latch receiver from the locked position.