KR102018568B1 - Door lock with adjustable width according to door thickness - Google Patents

Abstract

The present invention relates to a lock device for a fire door having a dead bolt (1) for locking a door (D) and a ratchet bolt (5) for guiding opening and closing sections of the door (D). The lock device comprises: a case (10) receiving the dead bolt (1) and the ratchet bolt (5) to be slidable, and receiving a dead cam (11) and a ratchet cam (15) which are connected to the dead bolt (1) and the ratchet bolt (5), respectively, to be retracted outwardly according to rotation; an operation unit (20) including outer and inner knobs (23, 24) each having a key cylinder (21) and a lever (22) for inducing rotation of the dead cam (11), and including a driving cylinder (25) and a driven cylinder (26) which induce rotation of the ratchet cam (15) in accordance with the rotation of the outer and inner knobs (23, 24) on outer surfaces of the key cylinder (21) and the lever (22); and a transmission member (30) which allows a lock bar (31) to be disposed on the outer and inner knobs (23, 24) and to transmit rotation by being inserted into the key cylinder (21) and the lever (22) across the dead cam (11), and which has a ratchet bar (35) integrally formed on the driving cylinder (25) to transmit the rotation by being inserted into the driven cylinder (26) across the ratchet cam (15). The present invention can increase convenience in installation.

Description

Door lock with adjustable width according to door thickness}

The present invention relates to a lock for a fire door having a dead bolt for locking the door and a ratchet bolt for guiding the opening and closing sections of the door, and more specifically, it is not divided into general use and fire protection according to the thickness of the door, It is designed to be installed on doors of various thicknesses with only a single locking device to reduce the overall manufacturing cost and improve the convenience of installation. It is about.

In general, the locking device is widely used in general home houses or public buildings. Typically, locks are used for front doors, bank vaults, and access controls to restrict access to certain areas. Such a locking device may be divided into a dead bolt for locking the door and a ratchet bolt for guiding the opening / closing section of the door independently, and having both of them.

Here, unlike the room door installed indoors, in the case of the front door that borders the interior and exterior, a locking device composed of a dead bolt and a ratchet bolt for the convenience of installation and use and safety is widely used. The combined locking device basically includes a case in which dead bolts and ratchet bolts are built, and handles which are installed inside and outside the door to manipulate dead bolts and ratchet bolts, respectively. That is, the dead bolt is operated by the rotation of the key cylinder and the lever respectively built in the indoor and outdoor handles, the ratchet bolt is operated by the rotation by the indoor and outdoor handles.

At this time, when the door is opened while the dead bolt is locked indoors, the dead bolt must be unlocked by rotating the lever. However, since the dead bolt is often not recalled whether the dead bolt is locked or released, the process of repeating the process of rotating the lever and opening and closing the door is performed. Therefore, there is an uncomfortable problem of visually remembering or confirming the rotational position of the lever, and in particular, if a door fails to open in a timely manner in the event of a fire or other emergency, there is a serious problem that directly leads to a human accident.

In order to solve this problem, the Republic of Korea Utility Model Registration No. 20-0225346 (name of the invention: the unlocking device of the door lock for the entrance), and the Republic of Korea Utility Model Registration No. 20-0226220 (name of the porch diagram) The lock release device of the door lock for fish) has been proposed. According to the proposed document, the door is opened and closed more quickly and easily by improving the release of the lock by the rotation of the inner handle without operating the lever in the locked state by the dead bolt when opening the door in the room.

On the other hand, in recent years, buildings are becoming more dangerous due to the increase in height, depth, size, and variety of uses, and efforts have been made to prevent the increase of life and property damage in case of fire. In other words, it is necessary to reduce the spread of fire and to secure evacuation safety by reinforcing the design and management of fire compartments, among which fire doors are essential for preventing the spread of fire and evacuation or passage.

Such fire doors must not only have the structure and performance that satisfies Article 64 of the Building Act Enforcement Ordinance, but also must be installed to prevent the spread of fire and to prevent any obstacles to evacuation. It should be installed as secured. Therefore, due to the improvement in the structure and performance to meet the fire resistance of fire doors, the thickness is gradually increasing than the existing door.

However, until now, the locking device is manufactured to a standard that can cope with the existing door has a problem that can not be installed in the fire door. Of course, it is possible to manufacture a separate locking device that can be applied to the fire door, but for the fire door is not possible to install on the general door, as a result, the fire door and the general door locking device must be produced separately, which wastes the overall labor. have.

Republic of Korea Utility Model Registration No. 20-0225346 (Name of the invention: door lock release device) Republic of Korea Utility Model Registration No. 20-0226220 (Invention name: door lock release device for the entrance door)

The present invention was created in order to more actively solve the above problems, and the locking bar and ratchet bar to move the dead bolt and the ratchet bolt respectively, while the locking bar and the ratchet bar are respectively inserted into the key cylinder and the lever and the indoor and outdoor handles. It is possible to slide in the axial direction depending on the thickness of the door and to continuously interlock with each other in the state, and it can be installed on doors of various thicknesses with only a single locking device. The purpose of the present invention is to provide a lock for the fire door which can be adjusted in width according to the thickness of the door to improve the convenience of installation.

In order to achieve the above problems, the configuration of the lock for the fire door can be adjusted according to the thickness of the door proposed in the present invention is as follows.

A fire door lock with adjustable width depending on the thickness of the top door is a dead bolt to lock the door and a fire door lock with a ratchet bolt to guide the opening / closing section of the door: Above dead bolt and ratchet bolt A case housing the dead cam and the ratchet cam which are slidably accommodated and connected to the upper dead bolt and the ratchet bolt, respectively, to be sunk outwardly according to rotation; Outer / internal handle that has a built-in key cylinder and lever to induce rotation of the upper dead cam, Drive cylinder and driven cylinder which induces rotation of the ratchet cam according to rotation of the outer and inner handle on the outer surface of the key cylinder and lever A control unit for each built-in; A locking bar is inserted across the dead cam on the outer and inner handles of the stomach and inserted into the key cylinder and the lever to transmit rotation, and a ratchet bar is inserted across the ratchet cam and inserted into the driven cylinder on the upper driving cylinder to transmit the rotation. It characterized in that it comprises a; transmission member formed as.

At this time, the upper driven cylinder according to the present invention is formed with a receiving groove cut in such a way that the end of the ratchet bar passing through the ratchet cam in the same line as the ratchet bar protruding from the drive cylinder is inclined so as to slide movement in the protruding direction. It is characterized by.

In addition, the locking bar and the ratchet bar of the upper transmission member according to the present invention is characterized in that it is formed with a length greater than the maximum thickness set by at least the type or size of the door.

In addition, the ratchet bar according to the present invention is characterized in that it is formed in a single position across the bottom of the ratchet cam so as not to interfere with the operation of the ratchet bolt located at the top.

In addition, the ratchet bar according to the present invention is characterized in that the ruler is displayed on the outer surface to measure the thickness of the door.

In addition, the ratchet bar according to the present invention is characterized in that a plurality of cutting grooves are further formed at predetermined intervals so that the length is adjusted according to the thickness of the door.

According to the present invention having the above-described configuration, the following effects are provided.

First, it can be installed in doors of various thicknesses with only a single locking device can reduce the overall manufacturing cost and improve the convenience of installation.

Second, the width can be adjusted according to the thickness of the door only by moving the ratchet bar, thereby minimizing the deformation of other components and using the existing manufacturing equipment.

Third, the ruler is displayed on the outer surface of the ratchet bar to measure the thickness of the door without a separate measuring tool, and the ratchet bar can be cut easily according to the thickness of the door. Compatible up to.

1 is an exploded view showing the locking device according to the invention as a whole.
2 to 4 are exploded views showing the main parts of the locking device according to the present invention separately.
5 and 6 is a configuration diagram showing an installation state of the locking device according to the invention.
Figure 7 is a block diagram showing the main portion of the locking device according to a modification of the present invention.

Hereinafter, with reference to the accompanying drawings will be described in a batch about the configuration of the present invention and its effects, effects.

Advantages and features of the present invention, and methods for achieving them will be apparent with reference to the embodiments described below in detail with reference to the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be embodied in various different forms, and only the present embodiments are provided to make the disclosure of the present invention complete and common knowledge in the technical field to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. And like reference numerals refer to like elements throughout the specification.

The present invention relates to a fire door lock device having a dead bolt (1) for locking the door (D) and a ratchet bolt (5) for guiding the opening and closing sections of the door (D), the case 10 and the operation unit Locking device for a fire door that can be adjusted in width depending on the thickness of the door 20 and the transmission member 30 as a main configuration.

The present invention is to be installed in the door having a variety of thickness with only a lock of a single standard to reduce the cost of the overall manufacturing and to improve the ease of installation as a main point.

Case 10 is inserted into the space provided on the side of the door (D) as shown in FIG. 1 to lock the door (D) in accordance with the user's operation, the square of accommodating the configuration for guiding the opening and closing section of the door (D) It is an enclosure. The case 10 slidably accommodates the dead bolt 1 and the ratchet bolt 5 as shown in FIG. 2, and is connected to the dead bolt 1 and the ratchet bolt 5, respectively, to rotate the door D according to rotation. The dead cam 11 and the ratchet cam 15 which are projected to the outside where the frame is located are incorporated.

The dead cam 11 is rotated from side to side along the transmission member 30, which will be described later, interposed in the rotation hole 10a provided in the center of the case 10. The dead cam 11 is passed through the locking bar 31 to be described later in the center and the interlocking locking hole (11a) is drilled, the cam ball (11b) for sliding and engaging the dead bolt (1) in accordance with the rotation on the top ) Is projected.

That is, when the dead cam 11 is rotated to the left by the lock bar 31, the cam ball 11b protrudes the dead bolt 1 to the outside to lock the door D, and if the cam ball is rotated to the right, the cam ball is 11b recesses the dead bolt 1 inward to unlock the door D. As shown in FIG.

The ratchet cam 15 is rotated from side to side along the transmission member 30, which will be described later, interposed in the rotation hole 10a like the dead cam 11 on one side and the other side of the case 10, respectively. The ratchet cam 15 has a through hole 15a rotatably accommodating the dead cam 11 at the center thereof, and a ratchet bar 35 of the transmission member 30 passes through the lower end of the ratchet cam 15 to engage with each other. 15b) is formed.

Here, the dog groove 15c engaging with the V-shaped ratchet dog 16 is formed at the upper end of the ratchet cam 15, and the ratchet dog 16 is connected with the ratchet bolt 5 to convert rotation into linear motion. The ratchet holder 17 is connected.

That is, when the ratchet cam 15 is rotated to the left side by the ratchet bar 35, the ratchet dog 16 rotates the ratchet holder 17 oppositely and recesses the ratchet bolt 5 protruding outward to the door D. At the moment when the rotational force is lost, the ratchet bolt 5 and the ratchet holder 17 are projected to their original positions by the springs interposed therebetween.

The operation unit 20 is mounted to the front and rear of the door (D) as shown in Figure 1 is a handle to guide the operation according to the opening and closing of the door (D). This operation part 20 consists of the key cylinder 21 which guides the rotation of the dead cam 11, and the outer / inner knob 23, 24 which respectively embeds the lever 22. As shown in FIG.

The outer handle 23 is rotatably mounted from the fixing frame 27 on the outdoor side of the door D as shown in Fig. 4 outside the interior and exterior, the inner handle 24 is located on the indoor side of the door D as shown in FIG. It is rotatably mounted from the fixed frame 27. The outer and inner handles 23 and 24 may be configured in various forms in consideration of the grip and design of the user, such as a b-type or an I-type, in addition to the circle shown.

Here, the external handle 23 has a key cylinder 21 which rotates in association with a user's key, and the internal handle 24 has a lever 22 which rotates according to the user's operation. The key cylinder 21 and the lever 22 are connected to one end and the other end of the lock bar 31, which will be described later, so that rotation is interlocked with each other.

And between the outer handle 23 and the key cylinder 21, the driving cylinder 25 to rotate with the outer handle 23 is coupled, the inner handle 23 and the lever 22 between the inner handle 23 and The driven cylinders 26 rotating together are coupled. The driving cylinder 25 and the driven cylinder 26 are engaged with the ratchet bar 35 to be described later, the rotation is interlocked.

At this time, the driven cylinder 26 flows in one end of the ratchet bar 35 passing through the ratchet cam 11 in the same direction as the ratchet bar 35 protruding from the driving cylinder 25 so that the slide movement can be performed in the protruding direction. While receiving grooves 26a cut out to be engaged with each other are formed.

In addition, the driving cylinder 25 and the driven cylinder 26 have a rotary ring 28 and a snap ring 29 which guide the external and internal handles 23 and 24 to be rotatably mounted from the fixed frame 27 on the outer surface. Intervention is inserted.

As shown in FIG. 1, the transmission member 30 includes the dead bolt 1 and the ratchet bolt built in the case 10 by rotating the key cylinder 21 and the lever 22 and rotating the outer and inner handles 23 and 24. It is a connecting shaft that transmits rotation to (5). The transmission member 30 is interposed between the dead cam 11 and inserted into the key cylinder 21 and the lever 22, as shown in Figs. 3 to 5 is interposed with a locking bar 31 for transmitting rotation, the driving cylinder ( A ratchet bar 35 is formed integrally with the ratchet cam 15 across the ratchet cam 15 and inserted into the driven cylinder 26 to transmit rotation.

At this time, the locking bar 31 and the ratchet bar 35 are formed to have a length greater than the maximum thickness set by at least the type or size of the door (D) as shown in FIG. For example, when the thickness of the general door is 35mm and the thickness of the fire door is 45mm, it is preferable to protrude to a length of at least 50mm so that it can be installed in both the general and the fire door D with only a single locking device.

Here, the ratchet bar 35 is formed in a single position across the lower end of the ratchet cam 11 so as not to interfere with the operation of the ratchet bolt 5 located at the top. That is, the conventional ratchet bar has a structure in which it is impossible to pass through the case 10 due to interference with the dead bolt 1 by forming a pair at the upper and lower ends of the cylinder interposed in the indoor and outdoor handles. Thus, unlike the lock bar 31 disposed at the center, the ratchet bar 35 had to have a length corresponding to the thickness of the door D.

However, the rotation of the ratchet bar 35 is configured only at the lower end of the ratchet cam 11 so as not to interfere with the ratchet bolt 5, so that the length of the ratchet bar 35, like the lock bar 31, may be reduced to the type of the door D. It can be formed with a length greater than the maximum thickness set by the standard. In particular, as the arrangement or structure of other components can be configured as it is, it is possible to use the existing manufacturing equipment can reduce the overall manufacturing cost.

On the other hand, the ratchet bar 35 is a ruler (35a) is displayed on the outer surface as shown in Figure 7a, it may further form a plurality of cutting grooves (35a) at a predetermined interval as shown in Figure 7b. That is, the ruler 35a induces to measure the thickness of the door D without using a separate measuring tool before installation. And the cutting groove 35b guides the length of the ratchet bar 35 in accordance with the thickness of the door (D).

For example, when the door is formed of a ratchet bar 35 having a length that can be installed on a special door D having a thickness of 80 mm, the inner handle 24 is accommodated when the door is installed in a general door D having a thickness of 35 mm. Lack of length

In this case, it is necessary to cut the length of the ratchet bar 35 to a length suitable for the general door (D), which is difficult and inconvenient to cut with a general cutter, and the cutting part must be bent to finish the cutting process, in particular the cutting part during the cutting process. There is a problem that the body of the worker is damaged by being crushed. That is, if unnecessary parts are removed with a cutter based on the cutting grooves 35b formed at regular intervals as a dimension, the cutting grooves can be cut easily, precisely and safely.

As described above, the present invention can be installed on doors having various thicknesses using only a single locking device, thereby reducing the overall manufacturing cost and improving the convenience of installation. The width can be adjusted according to the thickness of the door only by moving the ratchet bar. This makes it possible to use the existing manufacturing equipment by minimizing the deformation of other components.The ruler is displayed on the outer surface of the ratchet bar to measure the thickness of the door without a separate measuring tool. Therefore, the ratchet bar can be easily cut to provide compatible effects to general and fire doors as well as special doors.

1: dead bolt 5: ratchet bolt
10: case 10a: rotating hole
11: Dead Cam 11a: Lock Hole
11b: Cam Ball 15: Ratchet Cam
15a: Aeration 15b: Dead Home
15c: Dog Groove 16: Ratchet Dog
17: ratchet holder 20: control panel
21: key cylinder 22: lever
23: Outer Handle 24: Inner Handle
25: drive cylinder 26: driven cylinder
26a: receiving groove 27: fixed frame
28: rotating ring 29: snap ring
30: transfer member 31: locking bar
35: ratchet bar 35a: ruler
35b: Cutting groove D: Door

Claims (6)

A dead cam 11 and a ratchet cam (1) for receiving the dead bolt (1) and the ratchet bolt (5) slidably and being connected to the upper dead bolt (1) and the ratchet bolt (5), respectively, and spouting outwardly in rotation. A case (10) having a built-in; and an outer / internal handle (23) (24) having a key cylinder (21) and a lever (22) for inducing rotation of the upper dead cam (11), respectively, On the outer surfaces of the key cylinder 21 and the lever 22, the driving cylinder 25 and the driven cylinder 26 which guide rotation of the ratchet cam 15 in accordance with the rotation of the outer and inner handles 23 and 24 are respectively. A control bar 20 to be built-in, and a locking bar which is inserted into the key cylinder 21 and the lever 22 while passing the dead cam 11 on the upper and inner handles 23 and 24 to transmit rotation ( 31 is interposed, the transfer member 30 is integrally formed with a ratchet bar (35) is transmitted across the ratchet cam 15 on the upper drive cylinder 25 and inserted into the driven cylinder (26) to transmit rotation; Sleep for fire door In the device,
The ratchet cam 15 is installed on one side and the other side of the case 10, but is interposed in the rotation hole (10a) like the dead cam 11, rotates left and right along the transmission member 30, the dead cam in the center The through hole (15a) and the ratchet bar (35) of the transmission member 30 for rotatably receiving the passage is further provided with a dead groove (15b) is engaged with each other to receive rotational power,
The ratchet bar 35 is formed in a single position across the bottom of the dead cam 11 so as not to interfere with the operation of the dead bolt (1) located at the top, the outer surface induces the thickness of the door (D) The width of the door can be adjusted according to the thickness of the door further comprises a plurality of cutting grooves (35b) for inducing a predetermined length adjustment by cutting each corresponding to the thickness of the ruler (35a) or the door (D) Fire door lock.
The method of claim 1,
The upper driven cylinder 26 is introduced into the ratchet bar 35 protruding from the driving cylinder 25 so that one end of the ratchet bar 35 passing through the ratchet cam 15 can slide in the protruding direction. Locking device for a fire door can be adjusted in width according to the thickness of the door, characterized in that the receiving groove (26a) is formed to be interlocked with each other.
The method of claim 1,
The lock bar 31 and the ratchet bar 35 of the upper transmission member 30 has a width adjustment according to the thickness of the door, characterized in that formed at least a length greater than the maximum thickness set by the type or size of the door (D). Lockable fire door.
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