Rotating Locking Block for Telephone Handset Security
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Solution Overview
Problem
Conventional telephones lack an effective mechanism to prevent the handset from falling when the telephone set is supported at an angle or mounted on a wall, leading to potential handset detachment from the telephone set.
Innovation Solution
A rotatable locking mechanism with a locking block and spindles that can switch between states, allowing the locking block to extend and lock into the receiving groove of the handset receiver part, securing the handset in place when the telephone set is angled or mounted on a wall.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the telephone set is supported at an angle or mounted on a wall, then the telephone can be positioned for different usage scenarios, but the handset may fall from the telephone set
Solution Approach 1:
The locking mechanism includes a rotatable locking block that can dynamically switch between a first state (retracted) and a second state (extended) to adapt to different operational conditions. The locking block rotates between states based on whether the telephone is in normal or anti-fall mode, providing dynamic response to positioning changes.
Solution Approach 2:
The locking mechanism applies localized engagement features: the locking block has a locking surface that engages with a corresponding surface on the handset or telephone set. This localized mechanical engagement provides targeted security at the critical interface between handset and base, without affecting other parts of the system.
2Reliability
If a locking mechanism is added to prevent handset detachment, then handset retention is improved, but device complexity increases
Solution Approach 1:
The locking mechanism operates automatically based on the telephone's positioning state. When the telephone is detected to be in anti-fall mode (angled or wall-mounted), the system automatically activates the locking block to engage with the handset, eliminating the need for manual user intervention to secure the handset.
Solution Approach 2:
The locking mechanism is integrated into the existing telephone structure rather than being a separate add-on component. The locking block, spindles, and supporting plates are incorporated within the holding part structure, merging the locking function with the existing handset support system to minimize overall complexity.
3Reliability
If the locking block extends to lock the handset, then handset security is improved, but the space required in the accommodating space increases
Solution Approach 1:
The locking block transitions from a linear extension approach to a rotational movement approach. Instead of extending outward in a straight line which would require significant linear space, the locking block rotates within the accommodating space, utilizing angular movement to achieve the locking function with minimal linear space consumption.
Solution Approach 2:
The locking block uses rotational dynamics to achieve locking with minimal space. By rotating between a retracted position (first state) and an extended/engaged position (second state), the locking block provides security only when needed while minimizing space occupation during normal operation when the telephone is in standard positioning.
Data Source
AI summary
A telephone uses a locking mechanism for a handset where the handset includes a receiver part and a microphone part. The receiver part defines a receiving groove facing the microphone part. The telephone set includes a holding part to hold the handset. The holding part includes a first portion. The first portion defines a recess to receive the receiver part, and an accommodating space to receive the locking mechanism. The locking mechanism is rotatably received in the accommodating space and is switchable between a first state and a second state. The locking mechanism has a locking block. In the second state, the locking block is locked in the receiving groove of the receiver part to prevent release of the handset from the telephone set.