The "Touch Lock with Keep" is a common hardware set designed primarily for securing uPVC (unplasticized polyvinyl chloride) and aluminum sliding doors and windows. It is a simple, effective, and quick-acting locking mechanism, relying on a two-part assembly—the Touch Lock body and the Keep (or Receiver).
Component Content and Function
The system consists of two main, interconnected parts:
1. The Touch Lock (Body)
Content: This is the main locking mechanism, typically made from aluminum or zinc alloy, and often finished with a powder coating (like white or black). It houses the internal spring mechanism and a locking hook or bolt.
Location: The lock body is mounted directly onto the sash (the moving part) of the sliding door or window.
Function: It is called a "Touch Lock" because the locking action is engaged with a simple, quick push, press, or touch of a specific part of the mechanism (often a button or a lever) as the door or window is closed. This action causes the internal hook/bolt to extend and engage the receiver.
2. The Keep (Receiver/Strike Plate)
Content: The Keep is a small, specialized strike plate or receiver bracket, usually made of sturdy material like stainless steel (SS) or a durable metal alloy.
Location: The Keep is mounted on the frame of the sliding unit, positioned to align perfectly with the hook of the Touch Lock when the unit is in the closed position.
Function: The Keep provides the secure socket or slot into which the Touch Lock's hook/bolt firmly engages, providing the mechanical resistance against forced entry.
Mechanism and Security Features
The primary advantage of the Touch Lock with Keep system is its ease of use and convenience for immediate security:
Instant Locking: It is a quick-lock mechanism, ideal for fast security when the occupant is closing the sliding unit. There's no need to turn a key or knob to engage the primary lock; a simple push locks the unit.
Locking Hook: Many versions feature a hook that wraps around a vertical section of the Keep. This design resists lifting or prying forces, which are common methods of defeating standard sliding window locks.
Key Operation (Optional): While the 'touch' action is for securing the lock, many models include a small key cylinder on the body for double-locking or for unlocking from the exterior, adding an extra layer of security.
The Touch Lock with Keep system is widely used in residential and commercial buildings as a practical and secure method for securing sliding units, balancing convenience with reliable security.
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