KR20150081718A - Latch Assembly - Google Patents

Abstract

According to the present invention, a latch head is rotated in at least one direction to operate a latch assembly. The latch assembly comprises: the latch head; a first operating rod coupled to one lower side of the latch head to enable the latch head to be rotated; a second operating rod provided parallel to the first operating rod and where a hanging unit hung by a door-lock bundle is formed in an end of one side; and a connection unit connected to be rotated to one lower side of the head facing the first operating rod and the other side end of the second operating rod.

Description

[0001] Latch Assembly [0002]

The present invention relates to a latch assembly, and more particularly, to a latch assembly, in which a latch head is first rotated when a door is opened, a latch head is inserted into a cylinder, Lt; RTI ID = 0.0 > latch assembly. ≪ / RTI >

Generally, in a door lock apparatus in which a latch assembly is used, door knobs held by a user by hand in the room or outside are installed on both sides of the door, and the door lock unit is operated according to the operation of the door knob, The head is inserted into the door and the door is opened.

In the conventional latch assembly, since the door is opened only when the latch head is inserted into the door, if the door is not opened with the door handle fully operated, the latch head collides with the door frame, Abrasion may occur, or breakage of the latch head may occur.

In addition, if the door handle is not fully operated, the door may not be opened due to the door frame being caught by the door frame, so that a user who holds a product in a child, a patient, a disabled person or both hands may not easily open the door.

KR0352220 20

SUMMARY OF THE INVENTION It is an object of the present invention to solve the problems of the prior art, and it is an object of the present invention to provide a door for a door, which, when the door is opened, rotates the latch head, minimizes collision between the latch head and the door frame, SUMMARY OF THE INVENTION [0006]

The objects of the present invention are not limited thereto, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

In order to accomplish the above object, the latch assembly is driven by rotating at least one of the latch heads.

At this time, the latch assembly includes a latch head, a first operation in which the latch head is rotatably coupled to a lower side of the latch head, and a latch part that is provided in parallel with the first operation interval, And a connecting portion rotatably connected to the other end of the second operation between the lower one side of the head opposed to the first operation gap and the second operation.

In addition, the second operation interval and the connection portion may be configured to have an acute angle in a standby state.

In addition, the first operation interval and the second operation interval may be provided so as to be in contact with each other.

In addition, through holes formed along the longitudinal direction may be formed on one side of the center of the first operation, and fixing protrusions inserted into the through holes to drive the first operation gap together may be formed between the second operations.

The apparatus may further include a cylinder provided to provide a space in which the latch head can be seated and to surround the first operation interval and the second operation interval.

In addition, the cylinder may include a main body provided to surround the first operation interval and the second operation interval, a space provided at one end of the main body to provide a space in which the latch head is seated, And a second cover fixed to the other end of the main body.

Further, an elastic unit may be further provided between the first cover and the second cover.

Further, the elastic unit may be a coil spring.

The first cover and the second cover may be provided with fixing members for fixing the elastic unit.

The latch assembly of the present invention has the following effects.

First, since the latch head is rotated and operated, the door can be opened easily even if the user applies only a small force to the door handle.

Secondly, when the door is to be opened, the collision between the latch head and the door frame is minimized to minimize the burden on the latch head, thereby minimizing damage to the latch head and the door frame, thereby extending the service life of the latch and door frame It is effective.

Third, it is compatible with a latch assembly installed in an existing door, so that it is possible to use only the latch assembly without replacing the door or the handle assembly.

Fourth, even if a small force is applied to the door handle, the latch head is rotated and driven, so that even a user who has difficulty in operating the door like a child can minimize the impact of the latch head and the door and can open the door.

The effects of the present invention are not limited to the above-mentioned effects, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, And shall not be interpreted.
1 is a perspective view of a latch assembly in accordance with the present invention;
FIG. 2 is a perspective view of a latch assembly according to the present invention, excluding a cylinder; FIG.
3 is an exploded perspective view of a latch assembly according to the present invention;
4 is a cross-sectional view of a latch assembly in accordance with the present invention; And
5 is an operational state view of a latch assembly according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Configuration of the latch assembly

FIG. 3 is a perspective view of the latch assembly according to the present invention, and FIG. 4 is a perspective view of the latch assembly according to the present invention. FIG. Sectional view of the latch assembly.

1 to 4, the latch assembly 10 according to the present invention includes a latch head 100, a first operation interval 200, a second operation interval 300, a connection portion 400, and a cylinder (not shown) 500).

The latch head 100 is generally formed in a curved shape in order to facilitate closing of the door in the same manner as the latch head 100 commonly used in the art, . However, the latch head 100 is provided so as to be rotatable, so that the first operation interval 200 and the second operation interval 300 can be rotated respectively so that an external force can be transmitted to enable the rotation center axis and rotation Two through holes are formed on the lower side so as to be inserted.

At this time, the two through holes are parallel to each other and are provided at the lower both side end portions, preferably the lower side end portions corresponding to the curved surface and the vertical surface. That is, the two through holes are formed so that the latch head 100 is rotatable along the door opening / closing direction.

In addition, a groove is formed in the lower portion of the latch head 100 to provide the first working space 200 and the connecting portion 400 with a groove for providing the coils.

The first actuating part 200 is formed as a bar-shaped rod as a whole and is rotatably provided at one end thereof through a hinge 700 to a through hole formed in a lower portion of the latch head 100. Since the latch head 100 rotates about the hinge 700 coupled with the first operation space 200 as the center of rotation, the first operation space 200 is spaced apart from the lower portion of the latch head 100 corresponding to the vertical surface of the latch head 100 Through a hinge (700).

At this time, a long hole-shaped through hole 210 is provided along the longitudinal direction at one side of the center of the first operation space 200.

The second operation path 300 is provided in parallel with the first operation path 200 and moves in one direction according to the operation of the door handle and transmits a force for driving the latch head 100 and the first operation path 200 Device. The second operation interval 300 has the same configuration as the first operation interval 200 as a whole and has a latching portion 320 which is engaged with the door lock bundle at the other end terminated to the latch head 100. [

The second operation space 300 is provided to be in contact with the first operation space 200 and a fixing protrusion 310 inserted into the through hole 210 of the first operation space 200 at the center of the first operation space 200 . The fixing protrusions 310 may be formed such that one side of the center of the second operation gap 300 is cut and bent in a direction in contact with the first operation gap 200, It can be configured to be integrally formed.

In this second operation interval 300, one end is connected to the door lock bundle, but is not directly connected to the latch head 100.

The connection part 400 is connected to the lower one side of the latch head 100 and preferably to the lower one side of the latch head 100 facing the lower one side of the latch head 100 to which the first operation part 200 is connected, (Not shown). At this time, the connection portion 400 is rotatably provided through the hinge 700 at the end of the latch head 100 and the second operation portion, respectively.

The connecting portion 400 is preferably formed at an angle of at least 90 degrees with respect to the second operation interval 300 in a standby state before an external force is applied, and preferably has an acute angle. This is to prevent the user from operating arbitrarily without applying force to the handle to open the door. A more detailed description thereof will be described in more detail in the usage of the latch assembly described later.

The cylinder 500 is a device that encloses the first operation space 200 and the second operation space 300 and provides a space in which each of the devices can be driven. The cylinder 500 includes a main body 510, a first cover 520, and a second cover 530.

The main body 510 has a hollow tube shape so as to surround the first operation space 200 and the second operation space 300. The main body 510 is commonly used in the art, and a detailed description thereof will be omitted. At this time, the upper surface of the main body 510 may further include a cylinder cap 540 for preventing the latch head 100 from being separated. Such a cylinder cap 540 is commonly used in the art, and a detailed description thereof will be omitted.

The first cover 520 is provided at one end of the main body 510, preferably at one end corresponding to the latch head 100, to support the latch head 100. At this time, the first cover 520 is provided at the lower part of the connection part 400. That is, the connection portion 400 is provided between the first cover 520 and the latch head 100. The first cover 520 may have an outer diameter or an area greater than an inner diameter or an inner area of the main body 510 so that the first cover 520 can be inserted into the main body 510, And is relatively small.

A fixing member 521 for fixing the elastic unit 600 is provided on one side of the inner surface of the first cover 520 so that the elastic unit 600 described later can be stably fixed. The fixing member 521 is a protrusion-shaped member protruding inward of the first cover 520.

A through hole is formed on one side of the center of the first cover 520 so that the first operation space 200 and the second operation space 300 can be penetrated.

The second cover 530 has a shape corresponding to the first cover 520 as a whole and is provided at the other end of the body 510 so as to be symmetrical with the first cover 520. Since the second cover 530 does not need to be inserted into the main body 510, the second cover 530 has a diameter or an area corresponding to the main body 510 and is fixed to the other end of the main body 510 Respectively.

The elastic unit 600 is inserted into the cylinder 500 to provide an elastic force to the latch head 100. The elastic unit 600 may be any device capable of providing elasticity to the latch head 100, but it is preferable to use a coil spring.

The elastic unit 600 is fixed by the fixing members 521 and 531 inserted into the cylinder 500 and preferably the main body 510 and formed respectively in the first cover 520 and the second cover 530 The first cover 520 is elastically supported in one direction so that the latch head 100 can be maintained in the initial standby state if no external force is applied.

Use of latch assembly

The use of the latch assembly 10 having the above-described configuration will be described as follows.

The latch assembly 10 according to the present invention is an apparatus for preventing a closed door from being opened arbitrarily, like a latch conventionally used in the art.

The latch head 100 remains exposed to the outside of the cylinder 500 if no external force is applied. At this time, as shown in FIG. 4, the elastic unit 600 elastically supports the first cover 520 toward the outside of the door. The connection unit 400 is connected to the second operation space 300 at an acute angle.

Since the first cover 520 is resiliently supported by the elastic unit 600 and the connecting portion 400 and the second operation space 300 are at an acute angle, the door is rotated without operating the door handle The door is not opened. Even if a force is applied in the direction in which the latch head 100 is rotated because the second operation space 300 and the connection portion 400 are at an acute angle, the end of the acute- The latch head 100 is not rotated. As a result, the door is not opened.

5 is an operational state view of a latch assembly according to the present invention. When the user applies an external force to the door handle, the door lock bundle is operated and the second operation door 300 connected to the door lock bundle moves to the inside of the door, as shown in FIG. 5A. The operation state of the second operation interval 300 will be described in more detail as follows.

First, when a user applies an external force to the door handle, the door lock bundle is operated and the second operation door 300 moves to the inside of the door. As the second operation space 300 moves to the inside of the door, the second operation space 300 and the connection portion 400 are formed to have an obtuse angle. 5A, when the user applies a stronger external force to the door handle, the fixing protrusion 310 of the second operation gap 300 is inserted into the through hole 210 of the first operation gap 200 ).

At this time, if the moving distance of the second operation space 300 is longer than the length of the connection portion 400, the connection portion 400 moves to the inside of the door together with the second operation space 300. So that the latch head 100 rotates in a direction connected to the connection part 400. At this time, the rotation of the latch head 100 is rotated in a direction connected to the connection portion 400 with reference to a connection portion 400 connected to the first operation interval 200.

Next, when the user continuously applies an external force to the door handle, the first operation space 200 moves inward of the door together with the second operation space 300 as shown in FIG. 5B. That is, after the fixing protrusion 310 of the second operation interval 300 is moved to the end of the through groove of the first operation interval 200, the external force of the user is transmitted through the fixing protrusion 310 to the first operation interval 200 The first operation space 200 is moved to the inside of the door together with the second operation space 300. [

The latch head 100 is also moved to the inside of the door and inserted into the cylinder 500 as both the first operation passage 200 and the second operation passage 300 are moved to the inside of the door.

Even if the user pushes the door of the door with only the external force to which the latch head 100 is rotatable, the latch head 100 rotates and the door is opened by the pushing force of the door, The latch head 100 is pushed and the latch head 100 can be inserted into the cylinder 500. [ At this time, since the latch head 100 is in contact with the door frame in a rotated state, the impact applied to the latch head 100 is reduced, and the door can be opened easily.

That is, even if only a small external force is applied to the door handle, it is possible to open the door, so that even a user having difficulty in operating the door handle, such as a child, can open the door easily.

As described above, those skilled in the art will understand that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

10: latch assembly
100: latch head
200: 1st operation interval
210: through-hole in the shape of a long groove
300: between the second operation
310: Fixing projection
320:
400: Connection
500: Cylinder
510:
520: first cover
521: Fixing member
530: second cover
531: Fixing member
540: Cylinder cap
600: elastic unit
700: Hinge

Claims (10)

Wherein the latch head is configured to be rotated and driven at least in one direction. The method according to claim 1,
The latch assembly includes:
Latch head;
A first operation interval in which the latch head is rotatably coupled to a lower one side of the latch head;
A second operation interval which is provided in parallel with the first operation interval, and in which a latching portion is formed on one end of the door lock bundle; And
A connecting portion rotatably connected to one end of the lower side of the head opposite to the first operation interval and the other end of the second operation;
≪ / RTI > 3. The method of claim 2,
The second actuation interval and the connecting portion are configured to be acute in the standby state. 3. The method of claim 2,
And the first operation interval and the second operation interval are in contact with each other. 5. The method of claim 4,
A through hole formed along a longitudinal direction is formed at a center side of the first operation,
And a fixing protrusion inserted into the through hole to drive the first operation section together is formed between the second operations. 3. The method of claim 2,
Further comprising a cylinder provided to provide a space in which the latch head can be seated and to wrap the first actuation interval and the second actuation interval. The method according to claim 6,
The cylinder
A main body provided to surround the first operation interval and the second operation interval;
A first cover provided at one end of the main body to provide a space in which the latch head is seated and to be inserted into the main body; And
A second cover fixed to the other end of the main body;
≪ / RTI > The method of claim 7, wherein
And a resilient unit is further provided between the first cover and the second cover. 9. The method of claim 8,
Wherein the elastic unit is a coil spring. 10. The method of claim 9,
Wherein the first cover and the second cover are provided with fixing members for fixing the elastic unit.

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