Lockset Keyless Locking via Dual Clutch Torque Synchronization
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Solution Overview
Problem
Existing locksets require a key for both locking and unlocking, making them inconvenient for users.
Innovation Solution
A lockset with a cylinder assembly and a keyless-locking assembly connected through first and second clutch mechanisms, allowing for keyless locking by rotating the keyless-locking assembly relative to the lock housing, and switching between engaged and disengaged states to synchronize with the cylinder core and tailpiece unit for locking and unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a key is required for both locking and unlocking, then the locking mechanism is simple and reliable, but the ease of operation deteriorates due to the need to carry and use a key
Solution Approach 1:
The clutch mechanism serves multiple functions: it transmits torque during normal operation and enables keyless locking when engaged. The same basic structure supports both keyed and keyless operating modes, making the system multi-functional without requiring separate mechanisms for each mode.
Solution Approach 2:
The clutch mechanism acts as an intermediary between the operating member and the locking mechanism. When engaged, it mediates the torque transmission to enable keyless locking; when disengaged, it allows the cylinder core to control the locking mechanism through a key. This intermediary component enables the system to switch between different operating modes.
2Ease of operation
If a keyless-locking assembly is added to enable keyless operation, then the ease of operation improves, but the device complexity worsens due to additional components
Solution Approach 1:
The keyless-locking assembly is merged with the existing cylinder assembly through the clutch mechanism. Rather than adding a completely separate locking system, the invention integrates the keyless operation capability into the existing structure by combining the operating member, clutch mechanism, and cylinder core into a unified system.
Solution Approach 2:
The operating member serves dual purposes: it can rotate the cylinder core directly for keyless operation, or it can engage the clutch mechanism to transmit torque to the locking mechanism. This multi-functionality reduces the need for separate components for keyed and keyless modes.
3Reliability
If the cylinder core and tailpiece unit rotate synchronously with the keyless-locking assembly, then the locking reliability improves, but the device complexity worsens due to the synchronization requirement
Solution Approach 1:
The locking mechanism is segmented into distinct components: the cylinder core, the tailpiece unit, and the clutch mechanism. This segmentation allows each component to have a specific function while working together through controlled torque transmission. The clutch mechanism segments the torque path, enabling selective engagement between the operating member and the locking mechanism.
Solution Approach 2:
The clutch mechanism provides dynamic engagement and disengagement between the operating member and the locking mechanism. This dynamic capability allows the system to switch between keyed and keyless modes as needed, with the clutch engaging to transmit torque during keyless locking and disengaging to allow cylinder core control during keyed operation.
Data Source
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AI summary
The present application provides a lockset and a locking device. The lockset includes a lock housing, a cylinder assembly being rotatably arranged inside the lock housing, and a keyless-locking assembly connected to cylinder assembly in a transmission way. The cylinder assembly includes a cylinder core and a tailpiece unit. A first clutch mechanism is provided between the cylinder core and the tailpiece unit, and a second clutch mechanism is provided between the keyless-locking assembly and the tailpiece unit. When the second clutch mechanism is in an engaged state, the keyless-locking assembly is movable relative to the lock housing in a first direction under a driving of an external force for locking, and the cylinder core and the tailpiece unit rotate along with the keyless-locking assembly. When the external force on the keyless-locking assembly is withdrawn, the keyless-locking assembly moves in a second direction opposite to the first direction, so that the second clutch mechanism switches to a disengaged state. By means of the arrangement of the first clutch mechanism and the second clutch mechanism, the lockset provided in the present application can realize key locking and keyless locking, such that the lockset is more convenient to use.