KR20240020064A - Locking device for sliding windows - Google Patents

Abstract

The present invention discloses a locking device for sliding windows.
The present invention is manufactured by injection molding of synthetic resin such as engineer plastic, thereby contributing to reducing the weight of window frames by reducing the weight as well as economical production. In particular, the inside of the installation space where the stopper, spring, and gear hook that constitute the driving part are installed. The purpose is to provide a locking device for sliding windows that not only prevents malfunctions by blocking the inflow of various foreign substances, but also increases satisfaction with the product by ensuring reliability of operation.

Description

Locking device for sliding windows}

The present invention relates to a locking device for sliding windows. More specifically, the present invention relates to a locking device for sliding windows. More specifically, it enables injection molding with a simple structure, enabling economical mass production and preventing foreign substances from entering the inside of the driving unit, which is the main cause of failure. This relates to a locking device for sliding windows that can ensure durability and reliability of operation by ensuring confidentiality.

In general, a sliding window refers to a window that is installed so that the door moves in a straight line along a rail structure installed on the window frame to open and close the entire door. It is equipped with a handle assembly so that the user can hold it with his hand and push or pull it. The assembly is equipped with a locking device that automatically locks the door when closed.

That is, when the user holds the handle of the handle assembly installed on the door and pushes it in the direction of opening the door, the handle assembly rotates at a predetermined angle and the locking hook constituting the locking device inside is unlocked from the striker installed on the window frame, thereby opening the door. can be opened, and on the other hand, when closing the door, when the user rotates the handle in the opposite direction and pushes the door in the closing direction, the locking hook of the lock has elastic displacement and moves to the inside of the striker, returning to its position and locking state. will be maintained. Meanwhile, the handle assembly is installed and interlocked on the indoor and outdoor sides around the door, and the handle located on the outdoor side is configured so that it cannot be rotated in the direction of opening the door, so it cannot be opened from the outside when the door is closed. There is no such thing.

As a prior art, a 'locking device for windows and doors with improved airtightness' has been proposed through the Republic of Korea Public Utility Model No. 20-2016-0003153, and claim 1 includes a 'main body equipped to open and close the cover 110'. (100); A rotating body (200) mounted on the main body (100) so that it can rotate by connecting to a handle mounted on the outside of the main body (100); A stopper 300 mounted on the main body 100 to move in the longitudinal direction while receiving elastic support due to interference from the rotation of the rotating body 200; and a locking member 400 that engages the stopper 300 to provide a locking effect. In the locking device for windows and doors, the stopper 300 moves obliquely in the longitudinal direction and presses the locking member 400. A locking device for windows and doors with improved airtightness is disclosed.

As another prior art, a 'locking device for windows' has been proposed through Korea Registered Utility Model Publication No. 20-0484816, and claim 1 includes 'a locking assembly (100) mounted on a window frame (10); And in the window locking device including a striker 200 mounted on the window frame 20, the locking bundle 100 has a receiving groove 110 that can accommodate the entire striker 200, and receives elastic support. It includes a stopper 120 that engages the striker 200, and an operating gear 130 that causes rotational interference with the stopper 120 and unlocks the lock as the handle is rotated; the receiving groove 110 ) is a window characterized in that the stopper 120 is elastically supported and protrudes on one of the surfaces facing each other, and a support member 111 is provided on the other side and is elastically supported by an elastic spring 111a. A locking device for use is disclosed.

However, since the locking devices for windows and doors according to the prior art are made of metal and are very heavy, they not only add to the overall weight of the window, but also have the disadvantage of accelerating the phenomenon of window warping or collapsing. The internal space of the main body consisting of the stopper, operating gear, and elastic spring is subject to various foreign substances, dust, moisture, etc. flowing in from the outside and sticking as the stopper moves in and out, ultimately causing noise and vibration due to malfunction of the stopper. In addition, there was a problem that the stopper could not operate due to foreign substances sticking to the spring part.

To solve this problem, there is a method of periodically disassembling the handle assembly and removing the locking device again to clean any foreign substances or contaminants stuck inside. However, this is unrealistic because assembly and disassembly work is very difficult in reality, and is usually expensive. The entire handle assembly is being replaced.

Public Utility Model Publication No. 20-2016-0003153 (2016.09.21.) Registered Utility Model Publication No. 20-0484816 (2017.10.23.) Gongya Patent Publication No. 10-2021-0116365 (2021.09.27.)

The present invention was created to solve the problems of the prior art as described above. The purpose of the present invention is to provide economical distribution by enabling production through injection molding using engineering plastics with excellent rigidity and strength through injection molding suitable for mass production. It ensures uniformity of product quality and reduces the weight of the window by making it possible to reduce the weight compared to previous metal window locks, thereby eliminating the negative effects of increased weight and reducing the internal space of the main body where functional parts are placed. The aim is to provide a locking device for sliding windows that can ensure stable operation reliability by preventing foreign substances or moisture from entering from the outside.

A locking device for sliding windows according to a preferred embodiment of the present invention for realizing the above object includes a striker installed on a window frame and having a locking groove formed on one side; It is installed on a window panel and has a receiving groove to accommodate the striker. The main body consists of a housing with an installation space that is opened and closed by a side cover plate, and a housing that is rotatably assembled in this installation space and rotates in conjunction with a handle installed on the window panel. A gear hook, which is installed on one side of the gear hook and has a linear displacement interlocking with it, protrudes toward the receiving groove to form an inclined surface in the direction of entering the locking groove, and the opposite side forms a vertical surface to selectively lock, and It consists of an upper support part extending from the rear end of the locking part to have a step and a reduced thickness, a lower support part provided at intervals below the upper support part, and guide pins protruding on both sides where the locking part and the upper support part are connected. In the locking device for sliding windows, which consists of a stopper and a locking assembly composed of a spring whose one end is inserted between the upper and lower supports to exert an elastic support force,

The housing is injection molded from synthetic resin and forms the upper part of the installation space, with an upper cover part on the lower side of which the upper support part is located, and a front part formed perpendicular to one side of the installation space and with the lower surface of the locking part positioned on the upper side. A side wall portion is formed, wherein the upper cover portion is integrally formed with a protruding upper inflow prevention blade so that its end is in elastic close contact with the upper surface of the upper support portion while moving downward on one side to form a reduced thickness, and the front side wall portion is formed on the upper surface of the upper cover portion. It is characterized in that a lower inflow prevention blade is integrally formed on one side, forming a thickness that gradually decreases as it progresses upward toward the installation space, and elastically and closely contacts the lower surface of the locking portion.

As a preferred feature of the present invention, the main body has a flange portion formed on both sides of the housing with a mounting hole into which a screw member is inserted into the window panel; the gear hook has a cylindrical rotating shaft portion and one end on one side of the rotating shaft portion. It is composed of an eccentric cam part that protrudes vertically, one side of which contacts the front side wall, and selectively rotates toward the installation space to press and interlock the stopper, and a gear shaft part provided on one side of the eccentric cam part and having gear teeth formed on the inner surface;, the housing A rotary shaft groove into which the rotary shaft portion is inserted and an eccentric cam groove into which the eccentric cam portion is inserted are formed, and the side cover plate has a gear shaft hole formed through it at a corresponding position so that the gear shaft portion can be exposed to the outside.

As another preferred feature of the present invention, the upper inflow prevention blade is formed so as to protrude so that its end faces the receiving groove side and is positioned 1 to 3 mm below the upper surface of the upper support, and the lower inflow prevention blade is formed on the receiving groove side. It is formed to protrude so that it is positioned 1 to 3 mm higher than the lower surface of the locking part.

Another preferred feature of the present invention is that the housing and the side cover plate are fixed to each other with screw members or are integrally joined with an adhesive.

The locking device for sliding windows according to the present invention can be manufactured by injection molding using engineer plastic, enabling economical production and distribution along with uniform quality through mass production. Moreover, compared to conventional products manufactured with metal materials, the locking device for sliding windows can be manufactured by injection molding. Because it is light in weight, it is expected to have the advantage of reducing phenomena such as warping or sagging due to increased weight of windows.

In particular, the interior of the main body, which consists of a spring and a stopper, blocks foreign substances, dust and moisture, etc. from entering from the outside during the ingress and egress of the stopper, resulting in foreign substances and contaminants sticking to the space where functional parts are installed inside the main body. A useful effect is expected to increase the reliability of the product by preventing it from happening and ensuring stable operation.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, terms or words used in this specification and claims should not be construed in their usual, dictionary meaning, and the inventor may appropriately define the concept of the term in order to explain his or her invention in the best way. It must be interpreted with meaning and concept consistent with the technical idea of the present invention based on the principle that it is.

1 is a perspective view showing the overall configuration of a locking device for sliding windows according to the present invention;
Figure 2 is a perspective view illustrating the internal configuration of the lock assembly in the locking device for sliding windows according to the present invention;
3 and 4 are exploded perspective views illustrating the configuration of the locking device for sliding windows according to the present invention;
Figure 5 is a perspective view showing the configuration of the main body of the locking device for sliding windows according to the present invention;
Figure 6 is a diagram schematically showing the interior of the lock assembly according to the present invention;
Figure 7 is a diagram for explaining the internal coupling configuration of the locking device for sliding windows according to the present invention.

Hereinafter, the configuration and operation of an embodiment of the present invention will be described in detail with reference to the attached drawings. However, it is not intended to limit the present invention to a specific disclosed form, and should be understood to include all changes, equivalents, and substitutes included in the spirit and technical scope of the present invention. In this application, terms such as “include” or “have” are intended to designate the presence of features, steps, operations, components, parts, or combinations thereof described in the specification, but not one or more other features, steps, or operations. , it should be understood that it does not exclude in advance the possibility of the existence or addition of components, parts, or combinations thereof. In other words, throughout the specification, when a part is said to “include” a certain component, this means that it does not exclude other components but may further include other components, unless specifically stated to the contrary.

Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless clearly defined in the present application, should not be interpreted in an ideal or excessively formal sense. No.

Here, repeated descriptions, known functions that may unnecessarily obscure the gist of the present invention, and detailed descriptions of configurations are omitted in order to not obscure the gist of the present invention. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shapes and sizes of elements in the drawings may be exaggerated for clearer explanation.

Hereinafter, with reference to the attached drawings, a high-barrier, eco-friendly cosmetic tube body for induction heating joining of high-frequency upper and lower metal belts according to the present invention will be described as follows.

Figure 1 is a perspective view showing the overall configuration of a locking device for sliding windows according to the present invention.

In the drawing, a striker 200 is installed on a window frame (not shown), is provided in a roughly rectangular shape and has a locking groove (not shown) on one side, and is installed on a window panel (not shown) opposite the striker 200. A main body 10 forming the entire outer body and a flange portion 13 forming mounting holes 13h on both sides of the main body 10 in the longitudinal direction are assembled inside the main body 10 to have a linear displacement. A stopper 30 is selectively inserted into the locking groove 210 of the striker 200 to generate a locking force, and by selectively retracting the stopper 30, it is installed on the window panel so that the user can hold it with his hand and open the door ( A lock for sliding windows consisting of a lock assembly 100 made up of a gear hook 50 forming a gear shaft 51 that is pivoted to a handle (not shown) that rotates at a predetermined angle when force is applied in the direction to open the window. The device is shown

Figure 2 is a perspective view for explaining the internal configuration of the lock assembly in the locking device for sliding windows and doors according to the present invention.

In the drawing, a flange portion 13 is provided in a rectangular shape and has mounting holes 13h on both sides into which screw members for fixing the window panel are inserted, and is disposed between both flange portions 13, forming an installation space 11s. ( 11s), a stopper 30 having a linear displacement, a spring 40 that elastically supports the stopper 30, and a handle (not shown) installed on a window panel in contact with one side of the stopper 30. ) and a lock for sliding windows including a lock assembly (100) made up of a gear hook (50) that is axially coupled and rotated in conjunction with one-way rotation to move the stopper (30) backward to the inside of the installation space (11s). The device is shown.

Figures 3 and 4 are exploded perspective views for explaining the configuration of the locking device for sliding windows according to the present invention.

In the drawing, a striker (not shown) is provided in a rectangular shape fixed to the window frame with a screw member and provided with a locking groove (not shown) on one side that generates a locking force by inserting the locking portion 31 of the stopper 30, which will be described later. A locking device for a sliding window is shown, which consists of a locking assembly 100 installed on a window unit corresponding to the striker 200.

Here, the locking assembly 100 is provided with a flange portion 13 in which a mounting hole 13h is formed, and is a housing 11 provided with an installation space 11s, which is a space inside which various components can be installed. and a side cover plate 12 assembled with a screw member or joined with an adhesive to close the open surface of the housing 11, and a receiving groove 10s in which a striker (not shown) is accommodated on one side of the housing. ), a main body 10 forming a shape, a stopper 30 installed in the installation space 11s and provided to have a linear displacement, and a stopper 30 located on the rear side of the stopper 30 to apply an elastic support force to the stopper ( The locking portion 31, which is the front end of the 30), contacts the elastically supporting spring 40 and one side of the stopper 30 so that it protrudes toward the receiving groove 10s where the striker 200 is accommodated, thereby causing selective retraction displacement. A configuration is shown consisting of a handle (not shown) installed on a window panel and a gear hook 50 that is pivoted and rotates in one direction.

In addition, the stopper 30 is a driving member that moves backward in conjunction with the handle in the installation space 11s of the housing 11 constituting the main body 10 or appears by the elastic support force of the spring 40, and has a front end. A triangular piece-shaped locking portion 31 whose thickness decreases toward A lower support portion (35) disposed correspondingly to the lower side at an interval from (33), a vertical portion (34) vertically connecting the upper support portion (33) and the lower support portion (35), and the locking portion (31) It consists of a guide pin 37 protruding on the side connecting the upper support part 33, and one end of the spring 40 is located in the space between the upper support part 33 and the lower support part 35. It is shown.

In addition, the gear hook 50 has a rotating shaft portion 55 having a cylindrical shape, and one end protrudes vertically on one side of the rotating shaft portion 55, so that it can rotate at a predetermined angle toward the installation space 11s and rotate toward the opposite side. An eccentric cam part 53 that prevents rotation is provided on one side of the eccentric cam part 53, and a gear tooth is formed on the inner surface, and is exposed to the outside through the gear shaft hole 12h provided in the side cover plate 12. A configuration consisting of a gear shaft portion 51 is shown.

In addition, the housing 11 has a rotation shaft groove 11ah on one side into which the rotation shaft portion 55 is rotatably inserted, and a front side wall portion 11b on one side as a space into which the eccentric cam portion 53 is inserted. The eccentric cam groove (11bh) is located on the upper side of the rotation shaft groove (11ah) and is formed long along the longitudinal direction. When the guide pin (37) of the stopper (30) is inserted and has a linear displacement, it moves in the up and down directions. A configuration in which a guide groove (11g) is formed that regulates the flow and assists stable linear movement is shown.

In particular, the housing 11 according to the present invention is made of a plastic material by injection molding of synthetic resin, and has an upper support portion of the stopper 30 on one side of the upper cover portion 11a constituting the upper part of the installation space 11s. (33) A soft upper inflow prevention blade (15) is formed in elastic close contact with the upper surface to block foreign substances from flowing into the installation space (11s), and is formed on the lower surface of the catching portion (31) of the stopper (30). A configuration is shown in which a soft lower inflow prevention blade 17 is integrally formed in close elastic contact to prevent foreign substances from flowing into the installation space 11s.

Figure 5 is a perspective view showing the configuration of the main body of the locking device for sliding windows according to the present invention.

In the drawing, a flange portion 13 is provided with mounting holes (not marked) for fixing to the window panel with screw members on both the left and right sides based on the drawing, and an installation space 11s is provided between the flange portions on both sides. The configuration in which the formed housing 11 is disposed is shown, and an upper inflow prevention blade 15 is formed integrally with the upper cover portion 11a constituting the installation space 11s, and the front side wall portion 11b In the configuration, the lower inflow prevention blade 17 is integrally formed to protrude, and a guide groove 11g, a rotation axis groove 11ah, and an eccentric cam groove 11bh are formed in the installation space 11s. .

Figure 6 is a diagram schematically showing the interior of the lock assembly according to the present invention, and Figure 7 is a diagram illustrating the internal coupling configuration of the locking device for sliding windows according to the present invention.

In the drawing, the main body 10 is formed with a receiving groove 10s provided to accommodate the striker 200, and the main body 10 is installed in the installation space (not marked) of the housing 11 constituting the main body 10 and has a linear displacement. A stopper (30) having a locking portion (31), the tip of which is inserted into the locking groove (210) of the striker (200) to perform a locking action, the upper surface of the stopper (30), and The upper inflow prevention blade 15 and the lower inflow prevention blade 17 are each in elastic close contact with the lower surface to prevent foreign substances from entering the installation space 11s, and the catching portion 31 of the stopper 30. ), the spring 40 that elastically supports the protruding direction, and the stopper 30 are moved backward in conjunction with the user's handle rotation force to prevent displacement from being caught in the locking groove 210 of the striker 200. A locking assembly 100 consisting of a gear hook 50 that generates is shown.

The locking device for sliding windows according to the present invention will be described with reference to the above drawings as follows.

First, the present invention includes a striker 200 that is installed on a window frame and has a locking groove 210, and a handle that rotates at a predetermined angle in one direction under the user's manipulation force, which is installed on a window panel opposing the striker 200. It consists of an interlocking locking bundle 100, which includes a main body 10 forming the outer body, a stopper 30 installed inside the main body 10, a spring 40, and It consists of a gear hook (50).

The striker 200 has a rectangular shape, is installed on the window frame, and is a member that exerts a locking force by inserting the locking portion 31 of the stopper 30 constituting the locking bundle 100, which will be described later, using a known technology. Since it may be implemented, detailed description is omitted.

The lock assembly 100 is a part installed on the window panel opposite the striker 200, and although not shown in the drawing, it is axially connected to the handle of the sliding door, and when the user pushes the handle in the opening direction when the window (door) is closed, While rotating at a predetermined angle, the stopper 30, which will be described later, is moved backward to release the locking force with the locking groove 210 to open the window. Conversely, when moving in the direction of closing the window, the gear hook 50, which will be described later, is used. In the process of entering the striker 200 side without the handle rotating due to the eccentric structure of the handle, the inclined surface of the locking portion 31 is naturally induced to enter the locking groove 210 side, and then by the elastic support force of the spring 40. This configuration generates a locking force by protruding within the locking groove 210. This action of the locking assembly 100 is carried out by known techniques.

However, the present invention uses an upper inflow prevention blade (15) to prevent foreign substances such as dust or moisture from entering the installation space (11s) from the outside during the process of the stopper (30) entering and exiting the installation space (11s). ) and the configuration forming the lower inflow prevention blade (17) are its technical features.

First, let's look at the configuration of the main body 10, the stopper 30, the spring 40, and the gear hook 50 that make up the locking bundle 100.

The main body 10 has a receiving groove 10s formed on one side to accommodate the striker 200, and is largely composed of a housing 11, a side cover plate 12, and a flange portion 13.

The housing 11 is formed with an installation space 11s that provides space for various components to be installed inside, and this installation space 11s is shielded by the side cover plate 12. This housing 11 forms a rotation shaft groove 11ah into which the rotation shaft portion 55 constituting the gear hook 50, which will be described later, is inserted, and also into which the eccentric cam portion 53 of the gear hook 50 is inserted. An eccentric cam groove (11bh) is formed. In addition, a guide groove (11g) is formed to straightly guide the guide pin 37 of the stopper 30, which will be described later, and since these configurations may be implemented by known techniques, detailed description will be omitted.

The side cover plate 12 is a plate-shaped member for sealing the installation space 11s of the housing 11, and has corresponding screws so that it can be integrally coupled and fixed to the housing 11 by mutual screw assembly. It can form a fixed structure or be integrally joined with an adhesive. This side cover plate 12 has a gear shaft hole 12h formed through it to allow the gear shaft portion 51, which constitutes the gear hook 50 to be described later, to be exposed to the outside and to enable coupling with the handle. .

The flange portion 13 is an element that is disposed on both sides with the housing 11 in between and has a mounting hole 13h formed therethrough so that a screw member can be inserted.

It is proposed that the main body 10 of this configuration uses engineering plastics made of known PA, POM, PET/PBT, PC, and MPPO/MPPE, which have excellent mechanical strength and heat resistance.

Meanwhile, the present invention is characterized in that the upper cover portion 11a and the front side wall portion 11b forming the entrance side of the installation space 11s of the housing 11 are provided with an upper inflow prevention blade 15 and a lower inflow prevention blade, respectively. (17) is formed to form an upper inflow prevention blade (15) and a lower inflow prevention blade (17) to block dust or foreign matter from entering the installation space (11s) from the outside during the entry/exit operation of the stopper (30), which will be described later. ) is proposed to be formed integrally.

That is, the housing 11 is formed integrally by injection molding of synthetic resin, and forms the upper cover portion 11a, which forms the upper part of the installation space 11s where various components are installed, and the front side of the installation space 11s. In this way, an upper inflow prevention blade 15 and a lower inflow prevention blade 17 were formed on the front side wall portion 11b where the eccentrically protruding one side of the eccentric cam portion 53, which will be described later, is contacted.

Referring to the drawing, the upper support portion 33 of the stopper 30 is located on the lower side of the upper cover portion 11a, and the stopper 30, which will be described later, is caught on the upper side of the front side wall portion 11b. The lower surface of the sub 31 is located.

In addition, the upper inflow prevention blade 15 has a thickness that gradually decreases as it progresses downward from one side of the upper cover portion 11a, and its end portion is the upper surface of the upper support portion 33 of the stopper 30, which will be described later. It is provided to be in elastic close contact with. This upper inflow prevention blade 15 is preferably positioned 1 to 3 mm below the upper surface of the upper support portion 33 of the stopper 30, which will be described later, with its end facing toward the receiving groove 10s. A protrusion is formed,

In addition, the lower inflow prevention blade 17 is formed to have a gradually reduced thickness as it progresses upward from one side of the upper surface of the front side wall portion 11b toward the installation space 11s, and is formed on the lower surface of the engaging portion 31. It is provided to be in elastic close contact with. This lower inflow prevention blade 17 is preferably protruded toward the receiving groove 10s and positioned 1 mm to 3 mm higher than the lower surface of the engaging portion 31 of the stopper 30, which will be described later. do.

The gear hook 50 is an element that is pivoted to a handle (not shown) installed on a window panel and rotates at a predetermined angle in one direction by receiving operating force from the user. It is largely comprised of a rotating shaft portion 55, an eccentric cam portion 53, and a gear shaft portion 51. ) is composed of.

The rotation shaft portion 55 has a cylindrical shape and is an element rotatably inserted into the rotation shaft groove 11ah of the housing 11.

The eccentric cam portion 53 is formed integrally with one side of the rotating shaft portion 55, has a relatively expanded diameter, has one end protruding eccentrically, and rotates clockwise at a predetermined angle based on FIG. 7. It is provided to move the stopper 30 backward to the left, and has a shape whose rotation is restricted by the front side wall portion 11b in the counterclockwise direction.

The gear shaft portion 51 is provided on one side of the eccentric cam portion 53 and has gear teeth formed on the inner surface. Although not shown, it is known in the art that it is provided in engagement with the gear shaft of a handle installed on a window panel to receive an acting force. Since it is carried out by , detailed explanation is omitted.

The stopper 30 is installed on one side of the gear hook 50 and has a linear displacement by interlocking, and includes a locking portion 31, an upper support portion 33, a lower support portion 35, a vertical portion 34, and a guide. It consists of pins (37).

The locking portion 31 protrudes toward the receiving groove 10s of the main body 10 to form an inclined surface in the direction of entering the locking groove 210 of the striker 200, and forms a vertical surface on the opposite side to selectively lock. It is an element that acts.

The upper support portion 33 is an element having a rectangular plate shape with a step at the rear end of the engaging portion 31 and a relatively reduced thickness, and the upper cover portion 11a of the housing 11 is located on its upper side. This is the configuration where is located.

The lower support part 35 is provided at intervals below the upper support part 33, and one end of the spring 40 is provided in the gap with the upper support part 33.

The guide pin 37 is formed to protrude on both sides of the part where the locking part 31 and the upper support part 33 are connected, and moves in the up and down directions when the stopper 30 has a linear displacement in the forward and backward directions. It is inserted into the guide groove (11g) formed in the housing 11 to suppress the flow, and although not shown in the drawing, the side cover plate 12 also has a guide groove (37) that accommodates the guide pin (37). (not shown) is formed.

The spring 40 has one end supported in the space between the upper support part 33 and the lower support part 35, and the other end is supported on one side inside the installation space 11s, so that the locking part 31 of the stopper 30 It is an element that elastically supports so that it can emerge toward the receiving groove (10s).

The locking device for sliding windows according to the present invention configured in this way has a thickness on one side of the upper cover portion 11a and the front side wall portion 11b, which form the entrance to the installation space 11s through which the stopper 30 enters and exits. By reducing the upper inflow prevention blade 15 and the lower inflow prevention blade 17, which have flexibility, as one body, foreign matter consisting of contaminants, moisture, or dust attached to the outer surface of the stopper 30 when entering or exiting the stopper 30 is prevented from entering the installation space. It is possible to prevent the stopper 30, gear hook 50, and spring 40 from flowing into the inside of (11s) and hindering the operation of the driving elements.

In addition, since it is injection molded with synthetic resin, the upper inflow prevention blade (15) or the lower inflow prevention blade (17) can be molded as a single piece without the need to process and attach it as a separate member, so it does not affect the manufacturing cost and does not affect the existing metal material. Compared to , it is possible to reduce the weight.

Meanwhile, the present invention is not limited to the described embodiments, and can be used by changing the application area, and various modifications and variations can be made without departing from the spirit and scope of the present invention. It is self-evident to those with knowledge. Accordingly, such variations or modifications should fall within the scope of the claims of the present invention.

100: Lock Bundle 200: Striker
210: Locking groove 10: Main body
10s: Receiving groove 11: Housing
11: upper cover part 11ah: rotation axis groove
11b: Front side wall 11bh: Eccentric cam groove
11g: Guide groove 11s: Installation space
12: side cover plate 13: mounting hole
15: Upper inflow prevention blade 17: Lower inflow prevention blade
30: stopper 31: catching part
33: upper support 34: vertical portion
35: lower limb 37: guide pin
40: spring 50: gear hook
51: Gear shaft portion 53: Eccentric cam portion
55: Rotating shaft part

Claims (4)

A striker installed on a window frame and having a locking groove formed on one side;
It is installed on a window panel and has a receiving groove to accommodate the striker. The main body consists of a housing with an installation space that is opened and closed by a side cover plate, and a housing that is rotatably assembled in this installation space and rotates in conjunction with a handle installed on the window panel. A gear hook, which is installed on one side of the gear hook and has a linear displacement interlocking with it, protrudes toward the receiving groove to form an inclined surface in the direction of entering the locking groove, and the opposite side forms a vertical surface to selectively lock, and It consists of an upper support part extending from the rear end of the locking part to have a step and a reduced thickness, a lower support part provided at intervals below the upper support part, and guide pins protruding on both sides where the locking part and the upper support part are connected. In the locking device for sliding windows, which consists of a stopper and a locking assembly composed of a spring whose one end is inserted between the upper and lower supports to exert an elastic support force,
The housing is injection molded from synthetic resin and forms the upper part of the installation space, with an upper cover part on the lower side of which the upper support part is located, and a front part formed perpendicular to one side of the installation space and with the lower surface of the locking part positioned on the upper side. A side wall portion is formed, wherein the upper cover portion is integrally formed with a protruding upper inflow prevention blade so that its end is in elastic close contact with the upper surface of the upper support portion while moving downward on one side to form a reduced thickness, and the front side wall portion is formed on the upper surface of the upper cover portion. A locking device for sliding windows, characterized in that a lower inflow prevention blade is integrally formed on one side to form a thickness that gradually decreases as it progresses upward toward the installation space and is in elastic and close contact with the lower surface of the locking portion. According to claim 1, wherein the main body is formed on both sides of the housing with a flange portion having a mounting hole into which a screw member is inserted into the window panel,
The gear hook includes a cylindrical rotating shaft, one end of which protrudes vertically from one side of the rotating shaft, one side of which contacts the front side wall, and an eccentric cam that selectively rotates toward the installation space to pressurize and engage the stopper, and one side of this eccentric cam. It consists of a gear shaft portion provided with gear teeth formed on the inner surface;
The housing is formed with a rotary shaft groove into which the rotary shaft portion is inserted and an eccentric cam groove into which the eccentric cam portion is inserted, and the side cover plate has a gear shaft sub-hole formed through a corresponding position so that the gear shaft portion can be exposed to the outside. Features a locking device for sliding windows. The method of claim 1, wherein the upper inflow prevention blade is protruding so that its end is positioned 1 mm to 3 mm below the upper surface of the upper support portion while facing toward the receiving groove, and the lower inflow prevention blade is facing toward the receiving groove. A locking device for sliding windows, characterized in that it protrudes to be positioned 1mm to 3mm higher than the lower surface of the locking portion. The locking device for a sliding window according to claim 1, wherein the housing and the side cover plate are fixed to each other with screw members or integrally joined with an adhesive.