Remote-Actuated Hinge Lock for Hard-to-Reach Cabinet Doors
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Solution Overview
Problem
Existing hinge locks are difficult to operate, especially for high doors in large server cabinets, as the upper locks are hard to reach without additional aids, posing a challenge for smaller individuals.
Innovation Solution
A hinge lock design featuring a drive rod that moves transversely to the locking direction, allowing actuation from a distance, coupled with a guide slot and a bolt mechanism that facilitates easy operation, even from a difficult-to-reach location.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the bolt is moved directly on the hinge lock to lock or release, then the locking mechanism can be actuated, but the operation becomes difficult when the hinge lock is hard to reach (e.g., upper locks on high doors)
Solution Approach 1:
The drive rod moves in a direction transverse to the locking direction of the bolt, changing the dimension of actuation from linear (along locking direction) to transverse (perpendicular to locking direction). This allows the actuation point to be positioned away from the hinge lock body, making upper locks on high doors accessible without requiring the operator to reach the lock itself.
Solution Approach 2:
The drive rod acts as an intermediary element between the operator's hand and the bolt mechanism. By moving the drive rod transversely, the operator can actuate the bolt from a distant position, with the drive rod transmitting this transverse motion to produce the required linear motion of the bolt in the locking direction.
2Ease of operation
If the drive rod moves transversely to actuate the bolt from a distance, then accessibility to hard-to-reach locks is improved, but the mechanism requires additional components (drive rod, guide slot)
Solution Approach 1:
The drive rod is integrated with the existing hinge lock structure, combining the actuation function with the locking mechanism. The guide slot is formed as part of the hinge lock body, merging the guiding function into the existing structure rather than adding a separate guide component.
Solution Approach 2:
The drive rod serves multiple functions: it acts as both the actuating lever and the guiding element for the bolt through its guide slot. The transverse movement of the drive rod simultaneously provides both the mechanical advantage for easy operation and the directional control for reliable bolt actuation.
3Reliability
If multiple hinge locks are arranged on the door, then the door can be securely locked, but the actuation force required to operate all locks increases
Solution Approach 1:
By moving the actuation direction to be transverse rather than linear, the drive rod creates a larger moment arm and mechanical advantage. This reduces the force required at the actuation point, making it feasible to operate multiple hinge locks simultaneously or sequentially with minimal effort.
Solution Approach 2:
The drive rod serves as a force transmission intermediary that amplifies the operator's input force through its transverse movement geometry. This mechanical advantage allows a single operator to easily actuate multiple hinge locks, even those positioned at difficult-to-reach locations.
Data Source
AI summary
A hinge lock for locking a door leaf with respect to a door frame and for pivoting the door leaf with respect to the door frame. The hinge lock has a first hinge element for arranging on the door leaf and a second hinge element for arranging on the door frame. The first hinge element and the second hinge element can be locked with respect to one another by means of a bolt which can be moved back and forth in a locking direction between an unlocking position and a locking position. The bolt can be moved back and forth between the unlocking position and the locking position by means of a drive rod which can be moved transversely to the locking direction. The disclosure further relates to a door having a hinge lock.