Device for locking windows, balcony and patio doors

Abstract

Locking mechanism for balcony or patio doors and windows, including: a. a base plate, b. a guide arranged in the base plate, c. a movable bolt that can be moved within the guide, the bolt is designed in such a way that, in a locking position, it blocks the square of the latch, characterized by the fact that the base plate is located between The lock is mounted on the door or window surface and the handle set, and the lock can be operated without a key.

Description

1 title:

[0001] The invention is hereinafter referred to as “locking mechanism for door handles”, specifically for patio and balcony doors. 2. 1 Technical area:

[0002] The present invention relates to a locking device that prevents mechanical adjustment of the door handle on balconies and terraces. This is intended to provide security against accidental locking on the balcony or terrace by children and other people. The main objective is to prevent unauthorized or unintentional operation of door or window handles, especially by children. This ensures simple, secure, retrofittable, aesthetic, and reliable operation without the need for a key or other tools. 2.2 State of the art:

[0003] Previously known child safety devices for doors and windows, such as lockable window handles or additional locking elements, have several disadvantages. Lockable handles require the use of a key, which can either be lost or make handling difficult. Furthermore, a complete replacement of the handle and mechanism is necessary for such a key solution, which thus becomes unnecessarily expensive. With mechanical locks without a key, there is also the risk that an accidentally activated lock could unintentionally lock out the person on the opposite side of the door, for example, on a balcony. The present invention addresses these deficiencies by providing a keyless lockout device that is characterized by both its ease of installation and its versatility in application on doors and windows. 2.3. Object of the invention:

[0004] The object of the invention is to provide a locking mechanism for balconies and terraces, which has the following features: • Keyless operation • Can be mounted on balcony and patio doors as well as on windows • Ease of assembly • Very fast and easy to use • Mechanical lock in the desired position of the handle • Unconscious or inadvertent individuals (children, forgetful people) can no longer pull the handle down, thus preventing the balcony or patio door from closing. This prevents locking out. 2.4. Solution to the task:

[0005] The invention comprises a base plate (Pos1 in Fig. 1) with an integrated guide in which a movable bolt (Pos2 in Fig. 1). The base plate is installed between the door or window surface and the handle set, so that the bolt in its locked position engages the square bar (Pos3 in Fig. 1) the latch is blocked. Fig. 1 shows the open position and Fig. 2 the locked position. The lock is designed so that it can be locked or unlocked without a key by manually operating the bolt. The bolt cannot be fully extended. The design allows for flexible application, both with vertical latch arrangements (for doors) and horizontal latch arrangements (for windows). 32.5 Embodiments of the invention:

[0006] The design consists of two parts: the base plate (1) and the latch (2)

[0007] In the preferred embodiment, the base plate is made of a robust plastic (e.g., a thermoset, although an injection-molded thermoplastic is also possible) to allow flexible, cost-effective, and aesthetic adaptation to various handle sets, as well as door and window dimensions. The base plate is pressed onto the French door with screws.

[0008] The bolt, which slides within the base plate, should exhibit minimal deformation and elasticity when the square bar rotates. Therefore, stainless steel is considered. The bolt has enough built-in clearance with the handle assembly to prevent scraping, yet still requires minimal dexterity combined with finger strength.

[0009] This bolt is guided within the guide with tight tolerances, and when the bolt twists, the upper and lower surfaces of the base plate lock this twist. Unlocking can only be achieved by inserting the bolt into the guide, which requires a very improbable amount of thinking, strength, and dexterity for children up to the age of 4.

[0010] In the locked position, the latch blocks the square bar of the handle, preventing it from being actuated or twisted. In the unlocked position, the latch retracts completely into the base plate, allowing unrestricted use of the handle.

[0011] Furthermore, the invention includes variants with different fastening mechanisms, such as screws or clamps, which enable simple and flexible installation. Furthermore, the safety device can be individually adapted to latches of varying lengths and diameters. 6. Advantages of the invention: • High security: The latch locks the latch mechanism with locking rectangles with high dimensional tolerance. The mechanism is impossible for children to unlock. • Retrofitting: It is not necessary to replace the entire latch mechanism. • Universal applicability: Suitable for balcony and patio doors and windows with vertical or horizontal handle arrangements. Thanks to the Germany-wide standard, the positions and dimensions of the screw holes and the square bar can be retrofitted anywhere. • Keyless operation: No risk of losing keys or requiring additional tools. Locking and unlocking can be done from the inside using the latch. • Easy installation: The plastic cover of the door handle can be rotated to reveal threaded screws. These screws are then unscrewed, allowing the entire handle and square bar to be pulled out. Then, the latch and base plate are slid into position and screwed back in place. • User-friendly: The lock is easy to use, robust, and minimizes the risk of accidental lockout. Pulling the latch prevents the handle from turning; pushing it unlocks the handle. 7. Conclusion:

[0012] This invention offers an innovative and practical solution for the secure use of balcony / patio doors and windows. It combines ease of use with high reliability and eliminates the typical weak points of conventional locking mechanisms. Its universal applicability and keyless design represent a significant and cost-effective improvement over the state of the art.

Claims

[1] Locking mechanism for balcony or patio doors and windows, comprising: a base plate, b. a guide arranged in the base plate, c. a movable bolt that can be moved within the guide, wherein the bolt is designed in such a way that it blocks the square of the handle in a locking position, characterized by that the base plate between the door or window surface and the handle fitting and the security device can be operated without a key. [2] Locking mechanism according to claim 1, characterized by that the bolt is operated by a mechanism (e.g. a spring mechanism or a sliding device) that can be locked in a locked and an unlocked position. [3] Locking mechanism according to one of the preceding claims, characterized bythat the base plate has a modular design to allow adaptation to different handle sets and dimensions of doors or windows. [4] Locking mechanism according to one of the preceding claims, characterized by that the latch is made of a durable material to withstand mechanical stress. [5] Locking mechanism according to one of the preceding claims, characterized by that the base plate has an opening or recess for the square of the handle to enable installation without impairing the function of the handle. [6] Locking mechanism according to one of the preceding claims, characterized by that the bolt is manually moved into the locked position by sliding or pushing, without the need for a key or other means. [7] Locking mechanism according to one of the preceding claims, characterized bythat the latch is fully recessed into the base plate guide in the unlocked position to allow unhindered use of the handle. [8] Locking mechanism according to one of the preceding claims, characterized by that the security device can be used with both horizontal (windows) and vertical (balcony and patio doors) handle arrangements. [9] Locking mechanism according to one of the preceding claims, characterized by that the base plate is available in different sizes and shapes to ensure universal installation on common door and window constructions.

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