KR100465822B1 - Panic exit device - Google Patents

Abstract

The present invention relates to a door lock device for an emergency exit, the object is to be able to easily open the door even in an emergency situation or a situation where the hand can not be used.

To this end, according to the emergency door lock device 10 according to the present invention, when the user wants to go out to the emergency exit in the room by pushing the push bar 4 to operate the operating lever 50, the latch 30 is released The door 1 is opened. That is, the latch 30 is released from the door frame 2 by the rotation operation of the operating lever 50 and the door 1 is easily opened. Therefore, the door 1 is easily opened when the push bar 4 is pushed through the body part without necessarily using the hand at the indoor side, so that the door 1 can be easily opened and escaped even in an emergency situation.

And even if you want to enter the room from the emergency exit by holding the handle 70 and rotate in any direction, the operation lever 50 is interlocked, the latch 30 is released, so that the door 1 can be easily opened even at the emergency exit side. It has an effect.

Description

Emergency exit door locks {PANIC EXIT DEVICE}

The present invention relates to a door lock device for an emergency exit, and more particularly to a door lock device for an emergency exit to open the door by easily releasing the latch even in an emergency or a situation where the hand can not be used.

In general, the lock of the door is to keep the door closed by the latch, the latch is released by holding the handle of the locking device installed on the inside and outside of the door and turn it. The door is opened by holding the handle and pushing it forward with the latch released.

As a result, in a door in which a conventional door lock is installed, the handle of the lock must be grasped and pushed or pulled in a turned state to open the door.

However, while the release process of the conventional door lock is considered to be simple, when an urgent situation occurs, not only does it delay the time to escape from the house or the office, but also gives a lot of difficulties to escape.

In addition, some people may forget calm and become nervous when an emergency occurs, and in fact, they may forget to operate a very simple door lock and may not be able to evacuate. Therefore, in order to be able to evacuate quickly in case of fire, it is legally impossible to install a lock on the door for emergency exit.

The present invention is to solve this problem; An object of the present invention is to provide a door lock device for emergency exit that can be easily unlocked by the latch is released only by pushing the door.

In addition, another object of the present invention is to provide a door lock device for an emergency exit that can be unlocked by unlocking the latch simply by turning the handle of the lock device installed on the emergency exit side of the door irrespective of the direction.

1 is an exploded perspective view showing a state in which the door lock device according to the present invention is mounted on the door of the emergency exit.

Figure 2 is an enlarged perspective view of the internal structure of the door lock according to the present invention.

Figure 3 is an exploded perspective view showing a cam according to the present invention and the installation structure thereof.

4 is a front view of the cam as seen in the arrow IV direction of FIG.

5 is a view illustrating a locked state of the door locking device according to the line VV of FIG. 1.

Figure 6 shows the latch release process of the door lock device through the push bar in the indoor side.

7 and 8 show the latch release process of the door lock device through the handle on the emergency exit side.

* Description of the symbols for the main parts of the drawings *

1.door 2.door frame

3..Striker 4..Pushbar

10.Door lock 20.Base

30. Latch 40. Elastic member

50. Operation lever 60. Cam

70..Handle

The present invention for achieving this object is;

A base fixed to the indoor side of the emergency exit door; A latch rotatably coupled to the base and having a front end extending outwardly to the door frame; An elastic member that elastically pulls the rear end of the latch so that the front end of the latch is always protruding and does not open arbitrarily in the closed state; The center of the door rotatably coupled to the base, the support portion extending from the center and the front end is arranged to support the rear end of the latch, and the extension portion extending from the center at a predetermined angle with the support portion is integrally formed. An operation lever for operating by a push bar disposed on the side to lift the rear end of the latch; The cam is rotatably disposed on the base while accommodating the supporting end of the operating lever and operated by a handle installed on the emergency exit side of the door, but having a cam for operating the operating lever irrespective of the rotation direction of the handle.

In addition, the cam is rotatably disposed on the base and connected to the handle through the spline shaft, a receiving groove formed on the upper surface of the body so as to receive the tip of the supporting portion of the operating lever, starting from the receiving groove and the edge of the body It characterized in that it comprises a first inclined surface inclined upward in one direction and a second inclined surface inclined upward in the other direction along the edge of the body in the receiving groove to correspond to the first inclined surface.

In addition, the cam body is provided with a rotating shaft coupled to the through-hole of the base and the shaft hole is formed therein so that the spline shaft is coupled,

The end of the rotating shaft is characterized in that the snap ring is installed to prevent the rotating shaft from being separated from the base.

In addition, a first stopper and a second stopper extending in the vertical direction are provided at the upper end of the first inclined surface and the second inclined surface to prevent the operation lever support part from being separated.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings. 1 to 5 show the configuration of the door lock device for emergency exit according to the present invention, Figures 6 to 8 shows the operating state of the door lock device for emergency exit according to the present invention.

1 to 3, the emergency exit door locking device 10 according to the present invention is rotatably coupled to the base 20 and the base 20 disposed on the interior side of the emergency exit door 1. And the door 30 (see Fig. 5, 2) latches the door 30 to the outside and the elastic member 40 and the base 20 to pull it elastically to maintain the latch 30 in the protruding state, And a handle disposed on the emergency exit side of the door (1) and the operating lever (40) actuated by the push bar (4) disposed on the interior side of the door (1) to lift the latch (30). It is rotated through 70 to have a cam 60 for operating the operating lever 50.

The base 20 is a metal mold, which is firmly fixed to the interior edge of the door 1 through the screws 21, and the latch 30, the cam 60, and the operating lever 50 are installed therein. . To this end, a plurality of screw holes 22 are drilled in the base 20, and the first bracket 23 and the second bracket 24 for rotatably installing the latch 30 and the operation lever 50 are provided. It is molded integrally. In addition, an opening 26 is formed in the side wall 25 of the base 20 adjacent to the door frame 2 in a state in which the door 1 is closed, and the center of the latch 30 is rotatable therein. Combined. The metal cover 27 is coupled to the base 20 by a screw to cover the latch 30, the cam 60, and the operation lever 50.

As described above, the latch 30 is rotatably coupled to the first bracket 23 of the side wall 25 of the base 20 through a pin so that the tip 31 thereof has an opening 26. Through the base 20 is allowed to go out. The tip 31 of the latch 30 closes the door 1 and is caught by a striker (see FIG. 5, 3) installed in the door frame 2 to maintain the closed state of the door 1. And the rear end 32 of the latch 30 located in the base 20 is elastically supported through the elastic member (40). That is, the elastic member 40 is composed of a tension coil spring, one end of which is fixed to the base 20 and the other end is fixed to the rear end 32 of the latch 30.

Accordingly, the elastic member 40 pulls the rear end 32 of the latch 30 toward the base 20 side, so that the front end 31 of the latch 30 always protrudes, thereby causing the door 1 to be closed. It will not open arbitrarily.

The operation lever 50 is defined by a central portion 51 in which the pinhole 51a is formed, and a support portion 52 and an extension portion 53 extended to be bent at approximately 45 degrees about the pinhole 51a. The central portion 51 of the operation lever 50 is rotatably assembled to the second bracket 24 of the base 20 through the pinhole 51a and the pin 54. And the front end of the support portion 52 is arranged to support the rear end 32 of the latch 30, which is pulled through the elastic member 40, the latch 30 is lifted when the support portion 52 is lifted up The rear end of 32 is also lifted. And the extension portion 53 of the operating lever 50 is extended to the interior side of the door 1, the end of the extension portion 53 is push bar 4 disposed in the horizontal direction on the interior side of the door (1) Combined with. Accordingly, when the push bar 4 of the door 1 is pushed from the indoor side, the operation lever 50 is interlocked.

2 to 5, the cam 60 is rotated through the handle 70 disposed on the emergency exit side of the door 1 to operate the latch 30, and is rotatable to the base 20. The body 61 is coupled to the handle 70 through a rectangular spline shaft 71 and a recess is formed to receive the tip of the support part 52 of the operating lever 50 on the upper surface of the body 61. A groove 62, a first inclined surface 63 starting from the accommodating groove 62 and inclined upward in one direction along an edge of the body 61, and an accommodating groove so as to correspond to the first inclined surface 63; And a second inclined surface 64 inclined upward in the other direction along the edge of the body 61. Accordingly, when the cam 60 rotates, the tip of the supporting portion 52 accommodated in the receiving groove 62 is lifted while contacting along the first inclined surface 63 or the second inclined surface 64. The rear end of 32 is also lifted. At this time, since the first inclined surface 63 and the second inclined surface 64 are formed symmetrically with respect to the receiving groove 62, regardless of the rotational direction of the cam 6, that is, the operating direction of the handle 70. The latch 30 is lifted up.

The body 61 of the cam 60 has a fan shape, and a rotary shaft 61a having a square shaft hole 61b is formed on the bottom surface for coupling the spline shaft 71. The rotating shaft 61a is rotatably coupled to the through hole 28 formed in the base 20, and a snap ring 61c is installed at an end thereof to prevent the base shaft 20 from being separated from the base 20. Reference numeral "61d" denotes a snap ring seating machined in the circumferential direction at the end of the rotating shaft 61a for the snap ring 61c arrangement.

In addition, in order to limit the degree of rotation of the cam 60, the first inclined surface 63 and the first end of the second inclined surface 64 extending in the vertical direction in contact with the side of the operating lever 50, the support portion 52 Second stoppers 65 and 66 are formed, respectively. That is, when the cam 60 rotates about 45 degrees in any direction in the initial state, the first stopper 65 or the second stopper 66 supports the lifting portion 52 of the operating lever 50 at the same time. Part of the side of the 52 is no longer rotated, thereby preventing the separation of the operating lever 50, the support portion 52 from the cam 60.

Next, the operation and effects of the emergency exit door lock device according to the present invention configured as described above will be described with reference to FIGS. 5 to 8. First, a case in which the door is opened from the indoor side will be described.

In the state in which the door 1 of the emergency exit is closed, as shown in FIG. 5, the tip 31 of the latch 30 protrudes out of the base 20, which is the striker 3 disposed on the door frame 2. It stays jammed in. For this reason, the door 1 of the emergency exit does not open arbitrarily.

In this state, as shown in Fig. 6, when the push bar 4 is pushed to the emergency exit side by the hand or part of the body indoors (arrow A direction), the extension part 53 of the operating lever 50 is pressed while operating. The supporting portion 52 of the lever 50 lifts the rear end 32 of the latch 30 while winning the pulling force of the elastic member 40.

As a result, the tip 31 of the latch 30 comes out of the striker 3 and enters the base 20, so that the door 1 can be easily opened by continuously pushing the door 1. That is, when the door 1 is pushed through the push bar 4 from the indoor side, the door 1 is easily opened while the latch 30 of the door lock 10 is released.

In addition, since the tip 31 of the latch 30 is protruded again by the tension of the elastic member 40 in the state of the push bar 4, the latch 30 exits to the emergency exit side and closes the door 1 again. The striker 3 is caught, which causes the door 1 to remain closed again (see FIG. 5).

Next, the case of opening the door at the emergency exit side will be described.

Referring to FIGS. 7 and 8, when entering the room from the emergency exit side, by holding the handle 70 and turning in one direction (arrow B in FIG. 7), the cam 60 rotates together with the handle 70. While lifting the support 52 of the operating lever 50. That is, when the cam 60 rotates in one direction through the handle 70 (in the direction of arrow C in FIG. 8), the supporting portion 52 of the operating lever 50 accommodated in the accommodation groove 62 is the first inclined surface 63. (If the cam 60 rotates in the other direction, the second inclined surface 64 is lifted, and the elastically supported latch 30 is also lifted so that the tip 31 of the latch 30 is striker 3. Releases into the base 20.

When the door 1 is pulled by the handle 70 in this state, the door 1 is easily opened to the emergency exit side. At this time, when the cam 60 is rotated by a predetermined angle (45 degrees in the present invention) by the operation of the handle 70, the side of the support lever 52 of the operating lever 50 is caught by the first stopper 65 and the operating lever ( While the 50 is prevented from being separated from the cam 60, the rotation operation of the handle 70 is no longer performed.

When the handle 70 is released, the latch 30 is pulled toward the base 20 by the tension force of the elastic member 40 and the cam 60 is restored, and the supporting portion 52 of the operating lever 50 is released. Is accommodated in the receiving groove 62 again.

In addition, since the cam 60 is formed with a second inclined surface 64 to correspond to the first inclined surface 63, the support 52 of the operating lever 50 can be rotated even when the handle 70 is rotated in the opposite direction. It is lifted up and the latch 30 is released from the striker 3.

As described in detail above; According to the emergency door lock device according to the present invention, the door is opened by the latch is released by operating the operation lever by pushing the push bar in the case of going to the emergency exit from the room. That is, the latch is released from the door frame by the rotation operation of the operating lever and the door is easily opened. Therefore, the door is easily opened by pushing the push bar through the body part without necessarily using the hand at the indoor side, and there is an effect that the door can be easily opened and escaped in an emergency situation. And even if you want to enter the room from the emergency exit by holding the handle in any direction, the operation lever is interlocked release the latch, there is an effect that can easily open the door in the emergency exit side.

Therefore, the elderly or the hand is inconvenient to use the emergency door lock device according to the present invention on the door of the school or public offices with frequent entry and exit, such as a hospital or documents or luggage frequently used by people can see an excellent effect.

Claims (4)

A base 20 fixed to the indoor side of the emergency exit door 1; A latch (30) rotatably coupled to the base (20) and having a front end (31) entering and exiting the base (20) outwardly and engaged on the door frame (2) side; An elastic member 40 which elastically pulls the rear end 32 of the latch 30 so that the front end 31 of the latch 30 always protrudes and does not open arbitrarily in the closed state of the door 1; A central portion 51 rotatably coupled to the base 20, a support portion 52 extending from the central portion 51 and disposed so that the front end supports the rear end 32 of the latch 30; The extension portion 53 extending from the central portion 51 while forming a predetermined angle with the support portion 52 is integrally formed, and is operated by a push bar 4 disposed at the interior side of the door 1 to the An operation lever 50 for lifting the rear end 32 of the latch 30; A body 61 rotatably disposed on the base 20 and associated with a handle 70 installed at an emergency exit side of the door 1 through a spline shaft 71 and an upper surface of the body 61. Receiving groove 62 formed to receive the front end of the supporting portion 52 of the operating lever 50, the first starting from the receiving groove 62 and inclined upward in one direction along the edge of the body 61 The inclined surface 63 and the second inclined surface 64 inclined upwardly in the other direction along an edge of the body 61 in the receiving groove 62 to correspond to the first inclined surface 63. A cam 60 for operating the operating lever 50 irrespective of the rotational direction of the 70; Emergency door lock, characterized in that provided. delete The method of claim 1, The body 61 of the cam 60 is provided with a rotating shaft 61a coupled to the through hole 28 of the base 20 and having a shaft hole 61b formed therein so that the spline shaft 71 is directly coupled thereto. , An emergency exit door lock device, characterized in that a snap ring (61c) is installed at the end of the rotating shaft (61a) to prevent the rotating shaft (61a) from being separated from the base (20). The method of claim 1, The first stopper 65 and the second stopper extending in the vertical direction so that the support lever 52 of the operating lever 50 is caught on the upper ends of the first inclined surface 63 and the second inclined surface 64. 66) door lock for emergency exit, characterized in that provided.