KR-20260066649-A - DOOR LATCH RELEASE DEVICE AND METHOD THEREOF

KR20260066649AKR 20260066649 AKR20260066649 AKR 20260066649AKR-20260066649-A

Abstract

The present invention relates to a door latch release device. The door latch release device comprises a door latch release device having a structure in which a latch is received in a groove of a door frame when the door is closed. The door latch release device comprises a first part formed along one direction, having an area of a predetermined size, extending outwardly, and fixed to the outside of the groove; a second part extending from the first part and recessed into the groove; a third part extending from the second part and fixed to the inside of the groove; and an operating part extending inwardly from the third part and fixed to the inner door frame. When the operating part is pulled while the door is closed, the second part unfolds from the first part and pushes the latch to release the restraint of the latch.

Inventors

이진호
전은선
이세상
이세계

Assignees

(주)맘랩스

Dates

Publication Date: 20260512
Application Date: 20251121

Claims (18)

In a door latch release device having a structure in which a latch is received in a groove of a door frame when the door is closed, The above door latch release device is formed along one direction and has an area of a predetermined size, and A first part extending outward and fixed to the outer side of the groove; A second part extending from the first part and recessed into the groove; A third part extending from the second part and fixed to the inside of the groove; and It includes an operating part that extends inward from the third part and is fixed to the inner door frame; A door latch release device characterized by the fact that when the above-mentioned operating part is pulled while the door is closed, the second part unfolds from the first part and pushes the latch to release the restraint of the latch.
In claim 1, The above door latch release device is, A door latch release device characterized by having an outer extension portion extending from the first portion to expand the contact range with the outer side of the groove, or an inner extension portion extending from the third portion to expand the contact range with the inner side of the groove.
In claim 1, The above door latch release device is, A door latch release device characterized by being formed by bending a resilient polymer.
In claim 1, The above first to third parts are formed integrally, and A door latch release device characterized by the first to third portions being attached so as to be in close contact while being bent along the shape of the door frame.
In claim 1, A door latch release device characterized by having a display unit in the operating part that displays visual information such as advertisements, brands, logos, or information displays.
In claim 1, The above first to third parts and the operating part are formed integrally, and A door latch release device characterized by the first to third parts and the operating part being attached so as to be in close contact while being bent along the shape of the door frame.
In claim 1, A door latch release device characterized by having a hole formed in a part of the third portion so that the latch does not come into contact when rotated.
A method for releasing a door latch having a structure in which the latch is received in a groove of the door frame when the door is closed, The above door latch release device is formed along one direction and has an area of a predetermined size, and A step in which a portion of the door latch release device is received in the groove, and both ends are fixed to the inner and outer sides, respectively; A step of pulling the part of the door latch release device fixed to the inner side toward the inner side; and A door latch release method characterized by including the step of releasing the restraint of the latch by pushing the latch as the door latch release device, which was received in the groove, unfolds from the portion fixed to the outer side.
In claim 8, The step of fixing the above door latch release device is, A step of recessing a second portion extending from a first portion extending outwardly among the door latch release device into the groove; A step of fixing the first portion to the outside of the groove and fixing the third portion extending from the second portion to the inside of the groove; and A door latch release method characterized by including the step of fixing an operating part extended from the third part to an inner door frame.
In claim 8, The above door latch release device is, A door latch release method characterized by being formed by bending a resilient polymer.
In a door latch release device having a structure in which a latch is received and restrained by a strike plate of a door frame when the door is closed, A release means attached to the above door frame and contacting at least one of the latch or the strike plate to release the restraint upon operation; and A display unit formed on at least a part of the above-mentioned release means and displaying visual information including at least one of an advertisement, brand, logo, instruction manual, emergency contact, QR code, and NFC tag; comprising A door latch release device characterized by the release of the restraint of the latch by the action of pulling the release means.
In claim 11, The above door latch release means is, A first part extending outward and fixed to the outer side of the door frame; A second part extending from the first part and recessed into the groove of the strike plate; A third part extending from the second part and fixed to the inside of the groove; and A door latch release device characterized by including an operating part extending inward from the third part.
In claim 12, The above display unit is provided in the above operating unit, and A door latch release device characterized by being positioned toward the inner side of the door frame and being visually recognizable within a sealed space.
In claim 11, The above visual information includes commercial advertising information from a third party, and A door latch release device characterized by being used in a revenue model that covers the manufacturing or distribution costs of the device by receiving advertising fees from the aforementioned third party.
In claim 11, The above display unit is, A door latch release device characterized by being formed in at least one of printing, sticker, engraving, and digital display.
In claim 11, The above release means is, A door latch release device made of an elastomer, rubber, or elastic plastic material, characterized by having a shape that allows for bending and restoration.
In claim 12, A door latch release device characterized by having a hole formed in a part of the third portion so that the latch does not come into contact when rotated.
A method for releasing a state in which a latch is received by a strike plate of a door frame and restrained while the door is closed, A step of displaying third-party advertising information on the display portion of the release device attached to the door frame; A step of pulling a part of the above-mentioned release device toward the inside; and A door latch release method characterized by including the step of releasing the restraint of the latch by moving the latch or the strike plate relative to the above pulling action.

Description

Door Latch Release Device and Method Thereof The present invention relates to a door latch release device and a method thereof, and more specifically, to a latch release device and a method thereof that releases the restraint of a latch by pushing the latch using structural features. Generally, doors in residential or commercial facilities are equipped with a latch device for opening, closing, and locking the door. The latch operates in conjunction with the handle to open and close the door and serves to keep the door closed by engaging with the strike plate of the door frame. However, these latches can malfunction due to wear and tear on internal parts from prolonged use, corrosion caused by moisture, or external impact. In particular, in humid spaces such as restrooms or bathrooms, rust or corrosion inside the latch frequently leads to operational failure. Furthermore, if the internal spring or connecting parts are damaged, the latch will not operate properly even when the handle is turned, resulting in the door failing to open. The problems arising from this are on the rise, and in particular, when a bathroom door breaks and you get trapped, you may become isolated in a confined space for a long time, leading to panic disorder or claustrophobia, or you may get injured while attempting to escape. However, when a latch malfunctions, opening the door requires requesting rescue services, consulting a professional locksmith, or forcibly breaking the door, which consumes a significant amount of time and money, and poses a problem in that a rapid response is difficult, especially in emergency situations. To address these issues, some emergency release devices have been developed for vehicle doors that allow them to be opened mechanically even in the event of an electrical failure; however, latch release devices applicable to general building doors have hardly been developed. Therefore, there is an urgent need to develop a latch release device that allows users to easily open the door even when the latch is malfunctioning. FIG. 1 is a perspective view of a door latch release device related to the present invention. FIG. 2 is a drawing for explaining the extension and display parts of a door latch release device related to the present invention. FIG. 3a is a usage diagram for explaining a door latch release device related to the present invention. FIG. 3b is a usage diagram to explain a door latch release device related to the present invention. FIG. 4a is an exemplary drawing for explaining the operation of a door latch release device related to the present invention. FIG. 4b is an exemplary drawing for explaining the operation of a door latch release device related to the present invention. FIG. 5 is a flowchart illustrating a door latch release method related to the present invention. FIG. 6 is a flowchart illustrating a door latch release method related to the present invention. Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components are assigned the same reference number regardless of the drawing symbols, and redundant descriptions thereof will be omitted. The suffix "bu" used for components in the following description is assigned or used interchangeably solely for the ease of drafting the specification and does not have a distinct meaning or role in itself. Furthermore, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art could obscure the essence of the embodiments disclosed in this specification, such detailed description will be omitted. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification; the technical concept disclosed in this specification is not limited by the attached drawings, and it should be understood that they include all modifications, equivalents, and substitutions that fall within the spirit and technical scope of the present invention. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this application, terms such as “comprising” or “having” are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. The present invention relates to a latch release device (100) applied to a door having a structure in which a latch (11) is received in a groove (22) of a door frame (20) when the door (10) is closed, and to a door latch release device (100) attached to the door frame (20) so that the latch (11) can be released by pulling a part of the door latch release device (100). More specifically, the door latch release device (100) descr