Boltless Mortise Lock with Electromechanical Actuation
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Solution Overview
Problem
Boltless mortise locks lack electromechanical locking capability, limiting their functionality and requiring increased installation dimensions, which is a disadvantage compared to traditional mortise locks.
Innovation Solution
A boltless, short latch mortise lock design with an integrated electromechanical actuating device and nut coupling system that allows for controlled latch operation via an external handle, optimizing space and assembly efficiency while meeting industry standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional mortise locks with electromechanical locking mechanism are used, then electromechanical locking capability is achieved, but installation dimensions increase
Solution Approach 1:
The follower assembly is divided into inner and outer follower halves that can be mechanically separated. The inner follower half remains connected to the latch actuating mechanism while the outer follower half connects to the outer handle, allowing independent electromechanical locking of the outer handle without requiring a full traditional mortise lock structure
Solution Approach 2:
The locking cylinder is positioned in a recess in the face plate, utilizing the depth dimension rather than increasing the face plate area. This allows electromechanical locking components to be integrated without increasing the visible installation footprint on the door surface
2Volume of moving object
If short deadbolt locks without electromechanical locking are used, then installation dimensions are reduced, but electromechanical locking capability is lost
Solution Approach 1:
The electromechanical locking mechanism is merged with the short deadbolt lock structure. The locking cylinder with electromechanical drive is integrated into the face plate recess, combining the compact size advantage of short deadbolt locks with the electromechanical functionality traditionally requiring larger dimensions
Solution Approach 2:
The follower assembly acts as an intermediary mechanism that transmits the electromechanical actuation force from the locking cylinder to the latch and bolt components, enabling electromechanical locking in a compact configuration without requiring direct connection between the motor and locking components
3Ease of operation
If outer handle is mechanically separated from latch actuating mechanism, then independent operation is achieved, but coupling complexity increases
Solution Approach 1:
The outer follower half is extracted from the traditional integrated follower assembly, allowing it to be independently connected to the outer handle while the inner follower half remains connected to the latch mechanism. This separation enables independent operation of the outer handle for electromechanical locking without complex coupling requirements
Solution Approach 2:
The locking cylinder serves multiple functions: it provides the electromechanical drive for the actuating mechanism, houses the follower assembly connection points, and integrates with both the inner and outer follower halves. This multi-functionality reduces the need for additional coupling components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables cost-effective, space-efficient, and visually minimalist electromechanical locking of the latch, suitable for interior doors with reduced installation dimensions and assembly effort, maintaining standardized installation standards.
Implementation Method 1
The actuating mechanism (4) is designed to convert a rotational or rotary movement of the first half of the nut (6.1) about an actuating axis (BA) into a translational movement of the latch (5) along the locking axis (VA)
Implementation Method 2
at least one electromechanical actuating device (7) accommodated in the lock case (2) with at least one actuating element (7.1) for actuating the follower coupling (8)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a mortise lock for doors comprising a lock case (2) open at the end face, a faceplate (3) designed for mounting the mortise lock on a door leaf, an actuating mechanism (4) received in the lock case (2), a latch (5) and a follower assembly (6) comprising an inner and outer follower half (6.1, 6.2) as well as a follower coupling (8) for producing a mechanical coupling between the inner and outer follower half (6.1, 6.2), wherein the inner follower half (6.1) is operatively connected to the latch (5) via an actuating mechanism (4), wherein the latch (5) is designed to be displaceable along a locking axis (VA) between a locking position and an unlocking position, and wherein the inner follower half (6.1) is designed to receive a first actuating polygon in a rotationally fixed manner and the outer follower half (6.2) are designed for the rotationally fixed reception of a second actuating polygon, in which the actuating mechanism (4) is designed to convert a rotary or rotational movement of the inner half of the nut (6.1) about an actuating axis (BA) into a translational movement of the latch (5) along the locking axis (VA). The mortise lock is particularly advantageously designed in the form of a boltless, short latch lock (1), wherein the boltless, short latch lock (1) has at least one electromechanical actuating device (7) received in the lock case (2) with at least one actuating element (7.1) for actuating the nut coupling (8).