KR102341821B1 - corrosion resistant door lock with nonferrous metal texture - Google Patents

Abstract

The present invention has been developed to provide a door lock that is made of non-ferrous metal, such as stainless steel, brass, or aluminum, which has a non-ferrous metal texture, is not easily oxidized, and has no corrosion such as rust. More specifically, it is molded with zinc or synthetic resin Connect the door lock handle and handle by fixing the parts exposed to the outside of the door, such as the handle of the door lock, the handle connector and the body fixing plate, by covering them with a shell molded from stainless steel plate or non-ferrous metal plate such as brass or aluminum plate to prevent separation. It is a corrosion-resistant door lock with a non-ferrous metal texture that makes the surface of the tube and body fixing plate have the texture of non-ferrous metals such as brass and aluminum, and the surface is not easily corroded.

Description

Corrosion resistant door lock with nonferrous metal texture

The present invention has been developed to provide a door lock that is made of non-ferrous metal, such as stainless steel, brass, or aluminum, which has a non-ferrous metal texture, is not easily oxidized, and has no corrosion such as rust. More specifically, it is molded with zinc or synthetic resin Connect the door lock handle and handle by fixing the parts exposed to the outside of the door, such as the handle of the door lock, the handle connector and the body fixing plate, by covering them with a shell molded from stainless steel plate or non-ferrous metal plate such as brass or aluminum plate to prevent separation. The surface of the tube and body fixing plate has the texture of non-ferrous metals such as brass and aluminum, and the surface is not easily corroded to form a durable door lock.

In addition, an object of the present invention is to obtain a door lock with an elegant aesthetic feeling, which is easy to use, does not have a synthetic resin feel from the exterior, is easy to use and has firm adhesion, improved locking device and operational reliability.

Conventional door locks are made of zinc or synthetic resin, including the handle of the door lock, the handle connector, and the body fixing plate. The surface is polished so that the exterior has the texture of stainless steel, and a synthetic resin transparent film is applied to maintain the luster, or a brass texture. The door lock is divided into parts and molded because the surface is coated with nickel or chromium to give the texture of aluminum or stainless steel. Because the post-treatment is for this purpose, the process is complicated and the operation is cumbersome, and since surface corrosion of the material occurs during the manufacturing stage, measures must be taken to prevent corrosion.

In addition, to improve the above inconveniences, synthetic resin door locks mixed with special materials have been produced, and products with improved durability and corrosion resistance are being developed. Since it has to be processed so that it does not feel like a synthetic resin, it requires a lot of labor and costs a lot of processing.

Prior art disclosure utility model 20-2008-0006538

The present invention was developed to solve the above inconvenience.

The present invention relates to a door lock body (1) molded from synthetic resin or zinc, a fixing plate (2) (2a) for coupling the door and the door lock body by placing the door lock body inside and outside the door to fix the door lock body to the door; It consists of inner and outer handles 3 and 4 having connecting pipes 3a and 4a coupled to the door lock body through the center of the fixing plate, and a quadrangular pipe arranged at the center of the door lock body so that the inner and outer sides are coupled to the door lock handle connector. a latch (5) coupled to the central portion of the operating shaft, the tip protruding in a direction perpendicular to the handle connector, and a guide plate (6) guiding the end at the protruding end is disposed to enter and exit the locking part of the door frame ( 7), a cylinder top (8) mounted on the lock insertion part (3d) formed in the outer handle connector to open and close the actuating shaft (5), and the inner handle connecting pipe to forcibly open and close the actuating shaft (5) In the door lock having an actuating shaft opening/closing handle (9),

On the surfaces of the inner and outer handles (3) (4), the handle connecting pipes (3a) (4a), and the inner and outer fixing plates (2) (2a), a material selected from stainless steel plates or non-ferrous metal plates such as brass and aluminum is used. The outer surface of the handle connector (30) (40), which is molded by the compression molding method using the 41).

In the above, the handle shell 30, 40 is made of a stainless steel plate or a non-ferrous metal plate, and the peripheral walls 30a and 40a that are covered on the outer peripheral wall of the handle are formed on the outer peripheral surface of the outer peripheral surface of the outer shell body, and the coupling parts 30b and 40b formed on the peripheral wall are formed. ) is coupled to the engaging grooves (3b) (4b) of the handle, or the main wall extends through the handle main wall to contact the inner surface of the handle, and forms bent coupling portions 30c and 40c in which the extension is bent to form the inner surface of the handle It is made of a configuration to be coupled in close contact with the coupling portion (3c) (4c),

The fixed plate shell (20, 21) is made of stainless steel plate or non-ferrous metal plate, and the fixed plate shell body is covered on the upper surface of the fixed plate (2) (2a), and the main wall is covered by surrounding the outer peripheral wall of the fixed plate (2) (2a), The coupling projection (20a) of the outer shell of the fixing plate is coupled to the fixing groove (2b) formed on the outer peripheral wall of the fixing plate to be fixed, or a fixing means for fixing with a piece bolt is included,

The outer shell of the handle connector (31, 41) is made of a stainless steel plate or a non-ferrous metal plate and is covered with the handle connector (3a, 4a). It is forcibly covered on the outer surface of the connector and is made of a configuration to be fixed with a piece bolt.

In addition, the present invention is a cylinder tablet (8) that is accommodated in the lock insert portion is formed with a separation prevention engaging projection (3e) extending in the radial direction of the inlet on the outside of the inlet of the lock insert (3d) formed in the outer handle connection pipe. By making the outer circumferential protrusion piece (8a) caught, it is configured to prevent the cylinder top from being separated from the lock insertion part, and snap ring coupling grooves (3f) (4f) are formed at the end of the inner and outer handle connection pipe to snap into the coupling groove. By providing the ring 11, when the handle is coupled to the door lock body, it is configured to prevent separation.

In addition, the present invention connects the ball handle 12 and the connector 13 to the outer end of the operating shaft 5 connected to the outer handle to connect it to the cylinder top 8, and to the handle connector formed on the outer periphery of the ball handle. The ball guide hole 12a is formed to intervene the ball 14, and the outer periphery of the ball can be moved along the ball guide groove formed in the fixed plate through the ball guide hole formed in the handle connection pipe to control the operation of the cylinder. It is a configuration that can brake the rotation of the outer handle through the

In addition, in the present invention, a hole is formed in the outer shell of the handle to expose the key insertion portion of the cylinder, and the actuating shaft opening/closing handle 9 is configured to form a relatively long working interval protruding from the main wall.

In the above, the actuating shaft opening/closing handle 9 is molded of synthetic resin and fitted from the front fixing plate 9a, the inner center bar 9b to the handle connector 4a, the center hole 4d, and a coupling pipe 9c coupled to the actuating shaft 5 ) is formed, and an annular coupling groove (9d) is formed between the coupling pipe (9c) and the front fixing plate (9a) to be coupled to the coupling part (40d) of the handle shell (40), but the coupling pipe (9c) has an outer circumferential surface It is divided by a certain width on both sides to form a telescopic coupling part 9e whose outer circumferential surface is higher than the coupling pipe outer circumferential surface and fitted into the coupling pipe inner diameter, and the front surface is stretched and contracted in the coupling pipe axial direction. 9f), and when the front surface of the telescopic coupling part is inserted into contact with the inner surface of the coupling part 40d of the handle shell 40, it is coupled by a force fit so that it can be rotated in place without being separated from the coupling part 40d. is the composition

According to the present invention, as described above, the surface of the handle, the handle connector, and the fixing plate of the door lock molded from synthetic resin or zinc is covered with an outer shell molded from a plate material selected from among non-ferrous metals such as stainless steel, brass, and aluminum, so that the exterior has a brass texture or Because it has the texture of aluminum and is not easily oxidized and corroded, you can obtain the advantage of maintaining elegant aesthetics durable, and achieve cost reduction by improving productivity. It has the advantage of increasing the operating reliability, the installation and maintenance of the operating shaft opening and closing knob is durable, the advantage of obtaining a high-quality door lock that does not feel synthetic resin or zinc, and it is a competitive product by reducing the production cost It has the advantage of being able to produce it.

1 is a perspective view of the present invention viewed from the inner handle
Figure 2 is a perspective view of the present invention from the side of the outer handle
Figure 3 (a) (b) is an exploded perspective view of the outer handle of the present invention
Figure 4 (a) (b) is a cross-sectional view of the inner handle
Figure 5 (a) (b) is another exemplary embodiment of the inner handle outer shell
Figure 6 (a) is a cross-sectional view of the operating shaft opening and closing knob separated
Figure 6 (b) is a cross-sectional view of the assembled state of Figure 6 (a)
7 is a partial perspective view of the present invention;
8 is an exploded perspective view of the outer handle of FIG.
9 is a detailed exploded perspective view of FIG.
10 is an exploded cross-sectional view of the handle shell;
11 is an overall cross-sectional view of the present invention;
Figure 12 (a) (b) (c) is an exemplary view of the ball catcher operating state of the present invention.

The present invention will be described in detail with reference to the accompanying drawings as follows.

1 to 11 show the configuration of the present invention in an easy-to-understand manner.

The present invention relates to a door lock body (1) molded from synthetic resin or zinc and mounted on a door, and a fixing plate (2) (2a) disposed inside and outside the door lock body to fix the door lock body to the door and coupling the door and the door lock body and inner and outer handles 3 and 4 having connector pipes 3a and 4a coupled to the door lock body through the center of the inner and outer fixing plates; The actuating shaft (5) made of a quadrangular tubular body coupled to the door lock handle connector, coupled to the center of the actuating shaft, the tip protrudes in a direction perpendicular to the handle connector, and the protruding end (7a) is guided to the guide plate (6) As shown in FIG. 7, the latch 7 that enters and exits the locking part installed on the door frame, and the cylinder tablet 8 that is mounted on the lock insert part 3d formed in the outer handle connection pipe to open and close the actuating shaft 5 ), and a door lock having an operating shaft opening/closing handle (9) installed on the inner handle connection pipe to forcibly open and close the operating shaft (5),

Stainless steel plate or brass, as illustrated in FIGS. 3 to 5, on the inner and outer handles (3) (4), the handle connecting pipes (3a) (4a), and the inner and outer fixing plates (2) (2a) on the surface; A fixed plate made of a stainless steel plate or a non-ferrous metal plate, as illustrated in FIGS. 9 to 10, and the handle shell 30 and 40 covered on the surface of the handle by molding by a compression molding method using a plate selected from non-ferrous metal plates such as aluminum. It has a structure comprising a fixed plate shell (20, 21) covered on the surface, and a handle connector shell (31, 41) made of stainless steel plate or non-ferrous metal plate and covered on the outer surface of the handle connector pipe.

In the above, the handle shells 30 and 40 are covered with the inner and outer handle surfaces and are molded to be fixed, and specifically, the main walls 30a and 40a are formed on the outer periphery, so that the coupling portions 30b and 40b are formed on one side of the main wall. By being formed, the handle (3) (4) is covered on the surface and is coated so as not to be relaxed by forcibly coupling to the fixing grooves (3b) (4b) formed on the outer circumferential surface of the handle.

In addition, the handle shell 30, 40 has the inner end of the main wall (30a, 40a) formed on the outer peripheral surface to pass through the main wall of the handle to couple to the coupling portion (3c, 4c) formed on the inner side end of the main wall The extended and bent bent coupling portions 30c and 40c are formed and covered in a configuration that wraps the handle.

On the other hand, the fixed plate shell (20, 21) is covered on the outer surface of the fixed plate, the outer shell body is covered on the upper surface of the fixed plate (2) (2a), the main wall is formed to surround the outer peripheral wall of the fixed plate (2) (2a), the fixed plate The coupling protrusions 20a and 21a of the shell of the fixing plate are coupled to the fixing groove 2b formed in the outer peripheral wall to be fixed, or it may include a configuration in which it is covered by a coupling method selected from fixing methods of fixing with a piece bolt.

In addition, the handle connector shell 31, 41 is a tube that is covered with the handle connector 3a, 4a and is covered and fixed on the outer surface of the handle connector, or it becomes a tube with a part of the bottom open and is forced on the outer surface of the connector. It is filled and fixed, or it is fixed with a piece bolt, and a hole is formed through which the key insert of the cylinder is exposed.

In addition, the present invention provides a lock insertion protrusion (8a) on the outside of the inlet port of the lock insertion part (3d) formed in the outer handle connection tube, so that the outer peripheral protrusion piece (8a) of the cylinder tablet (8) is caught. To prevent outward deviation of the cylinder tablet accommodated in the unit, snap ring coupling grooves 3f and 4f are formed at the end of the inner and outer handle connection pipe, and the snap ring 11 is installed on the outer surface of the coupling groove, so that the handle connection pipe is a door lock After the body is coupled, it is prevented from being separated.

In addition, the present invention connects the ball handle 13 and the connector 14 to the outer end of the operation shaft 5 connected to the outer handle as illustrated in FIGS. 8 to 11 to connect the cylinder top 8, By interposing the ball 14 in the ball guide hole 12a formed on the outer periphery of the ball catcher, the ball is attached to and detached from the ball guide groove of the fixing plate 2 through the ball guide hole 3g formed in the handle connection pipe to operate the cylinder. By allowing the position of the ball to be selected through the configuration, it is possible to brake the outer handle.

On the other hand, the synthetic resin handle of the present invention is configured such that a main wall is formed outwardly on the outer periphery of the inner surface of the handle to form a reinforcing body between the main walls, and the outer shell of the handle is covered with the surface side of the handle to be exposed to the outside,

In the above, the actuating shaft opening/closing handle 9 is molded of synthetic resin and fitted from the front fixing plate 9a, the inner center bar 9b to the handle connector 4a, the center hole 4d, and a coupling pipe 9c coupled to the actuating shaft 5 ) is formed, and an annular coupling groove (9d) is formed between the coupling pipe (9c) and the front fixing plate (9a) to be coupled to the coupling part (40d) of the handle shell (40), but the coupling pipe (9c) has an outer circumferential surface It is divided by a certain width on both sides to form a telescopic coupling part 9e whose outer circumferential surface is higher than the coupling pipe outer circumferential surface and fitted into the coupling pipe inner diameter, and the front surface is stretched and contracted in the coupling pipe axial direction. 9f), and when the front surface of the telescopic coupling part is inserted into contact with the inner surface of the coupling part 40d of the handle shell 40, it is coupled by a force fit so that it can be rotated in place without being separated from the coupling part 40d. is the composition

1: door lock body 2,2a: fixed plate
2b: fixing groove 3,4: handle
3a, 4a : Connector 3b, 4b : Fixed groove
3c: locking jaw 3d: lock insertion part
3f, 4f: Snap ring coupling groove 3e: Separation prevention sill
5: operation shaft 6: guide plate
7: latch 7a: protruding end
8: cylinder top 8a: outer periphery protruding piece
9: actuating shaft opening/closing handle 9a: front fixing plate
9b: inner center bar 9c: coupling tube
9d: coupling groove 9e: telescopic coupling part
9f: inclined plane 11: snap ring
12: ball catcher 12a: ball guide
13: connector 14: ball
20,21: fixed plate shell 20a, 21a: coupling protrusion
30, 40: handle shell 30a, 40a: main wall
30b, 40b: coupling part 30c, 40c: bent coupling part
31,41: outer shell of handle connector

Claims (6)

A door lock body (1) molded of synthetic resin or zinc and mounted on the door frame, and a fixing plate (2) (2a) disposed inside and outside the door lock body to fix the door lock body to the door and coupling the door and the door lock body; The inner and outer handles 3 and 4 having connecting pipes 3a and 4a coupled to the door lock body through the center of the inner and outer fixing plates, and 4 disposed at the center of the door lock body so that the inner and outer sides are coupled to the door lock handle connector The actuating shaft 5 made of a square tube body, coupled to the central part of the actuating shaft, the tip protrudes in a direction perpendicular to the handle connector, and a guide plate 6 for guiding the protruding end is disposed at the protruding end to enter and exit the locking part of the door frame The latch 7 to be used; In the door lock having an operating shaft opening and closing knob (9) for forced opening and closing,
For the surfaces of the inner and outer handles (3) (4), the handle connecting pipes (3a) (4a), and the inner and outer fixing plates (2) (2a), a material selected from stainless steel plate or non-ferrous metal plate such as brass or aluminum is used. The outer surface of the handle connector (31) (41) is molded by the compression molding method and covered on the handle surface; ), the exterior has a non-ferrous metal texture,
The actuating shaft opening/closing handle 9 is molded of synthetic resin and fitted into the center hole of the handle connector 4a from the inner center bar 9b of the front fixing plate 9a to form a coupling pipe 9c coupled to the actuating shaft 5, An annular coupling groove 9d is formed between the coupling pipe 9c and the front fixing plate 9a to be coupled to the coupling portion 40d of the handle shell 40, but the coupling pipe 9c has a certain width on both sides of the outer circumferential surface. It is divided to form a telescopic coupling part 9e whose outer circumferential surface is higher than the coupling pipe outer circumferential surface and fitted to the coupling pipe inner diameter, and the front surface is stretched and contracted in the coupling pipe axis direction, and the inside of the telescopic coupling part 9e is formed as an inclined surface 9f, , The front surface of the telescopic coupling part is brought into contact with the inner surface of the coupling part 40d of the handle shell 40, so that it is rotated in place without being separated from the handle shell coupling part 40d, so that the exterior has a non-ferrous metal texture.
in claim 1
The handle shell (30, 40) is made of non-ferrous metal and is covered with the outer surface of the handle, and the main wall (30a) (40a) coupled to the outer circumferential wall of the handle is formed on the outer circumferential surface of the outer skin body, and the coupling portion (30b) (40b) formed on the main wall is the handle. It is coupled to the coupling grooves (3b) (4b) of the handle or extends so that the main wall passes through the main wall of the handle to contact the inner surface of the handle, and forms the bent engaging portions 30c and 40c in which the extension is bent to form the inner engaging portion of the handle ( 3c) Corrosion-resistant door lock that has a non-ferrous metal texture with a structure that can be closely coupled to (4c).
The method according to claim 1,
The fixing plate shells 20 and 21 are made of non-ferrous metal, and the fixing plate shell body is covered on the upper surface of the fixing plates 2 and 2a, and the main wall is covered with the outer peripheral wall of the fixing plate 2, 2a, and is formed on the fixing plate outer peripheral wall A corrosion-resistant door lock with a non-ferrous metal texture by including a fixing means for fixing the coupling protrusion (20a) of the fixing plate shell to one fixing groove (2b) and fixing it or fixing it with a piece bolt.
The method according to claim 1,
The outer shell of the handle connector (31, 41) is made of non-ferrous metal and is a tubular body coated on the knob connector (3a, 4a), which is covered and fixed on the outer surface of the knob connector, or an open tubular body with a part of the bottom open on the outer surface of the connector Corrosion-resistant door locks with a non-ferrous exterior texture that are forcibly covered and fixed with piece bolts.
The method according to claim 1,
A separation preventing locking jaw 3e extending in the radial direction of the inlet is formed on the outside of the inlet of the lock inserting part 3d formed in the outer handle connection pipe, so that the outer peripheral protruding piece 8a of the cylinder tablet 8 is caught, Corrosion-resistant door lock with a non-ferrous metal texture by preventing the cylinder top from being separated from the lock insertion part to the outside.
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