KR101810484B1 - Opening And Closing Device for Exit - Google Patents

Abstract

The present invention provides a door device comprising: a handle part installed on a front surface and a back surface of a door so as to enable a pressing operation and a pulling operation; An opening / closing unit coupled to the handle portion and installed inside the door and receiving the power when the grip portion is moved and converting the power in a direction perpendicular to the moving direction of the grip portion; And a latch unit coupled to the opening and closing unit and being moved in a direction perpendicular to the moving direction of the handle, and opening or closing the door by an operation of protruding or pulling in the side of the door,
The latch unit includes a latch housing formed on one side thereof with an opening communicating with the outside and inserted into a side of the door, a first engaging portion movably coupled to the latch housing and protruding outward from the upper end of the latch, A latch head hinged to one end of the first end of the guide body and protruding outwardly of the opening, a first end coupled to the latch head, and a second end coupled to the second end of the guide, A latch bar coupled to the opening and closing unit through the center of the body and the latch housing and being moved in a direction perpendicular to a direction in which the door is opened when the door is opened when the door is opened, And the latch head is coupled to the latch unit so that the latch head is not rotated about the hinge when an external force is applied to the latch head. And a stopper for restricting movement of the latch bar and allowing movement of the latch bar such that the latch head is rotated about the hinge when the latch bar is moved according to the opening of the door.

Description

{Opening and Closing Device for Exit}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an entrance opening / closing apparatus, and more particularly, to an entrance opening / closing apparatus that can easily open and close a door only by pushing and pulling the door without rotating the door handle.

Generally, the door opening / closing apparatus has a rotary knob on both sides of a door, and a latch interlocking with each knob is projected on an end of the door. Accordingly, when the user holds the handle by hand, the latch is pulled to the inside of the door. When the door is pushed or pulled in this state, the door is opened.

However, in the related art, in order to open the door in a closed state, the door must be opened by sequentially performing two operations, that is, first turning the handle in one direction and then pushing or pulling the door. In other words, the door must be opened by pushing or pulling the door while the user holds the door handle by the hand and rotates, thereby making it difficult to open the door.

Particularly, the continuous operation in which the door is pushed or pulled in a state in which the handle of the door is rotated by one hand while being held by the hand is difficult for the child, the elderly, and the disabled to rotate the door handle, There is an inconvenience that the user holding the carrying object should drop the carrying object on the floor, then open the door, lift the carrying object again, or access it with the help of another person.

In addition, when a crowd crowded in a government office, a theater or the like, or when an emergency occurs such as a fire or a flood requiring urgent evacuation, the operation of rotating the door handle is not quick and a safety accident may occur.

Recently, an opening / closing device for opening and closing the door by simply pushing or pulling the handle has been proposed without rotating the door handle, but most of the structure is complicated, many parts are used and it is difficult to assemble, There is a problem that the operation is not smooth and the accuracy of opening and closing is reduced.

The latch unit used in the conventional opening and closing apparatus is formed in a fan shape in which the shape of the latch head is formed by a rectilinear surface and an arc-shaped arc surface in consideration of closing and opening of the door. When the door is opened, the latch head is moved in a direction parallel to the straight surface of the latch head and escapes from the groove of the door frame. Therefore, if the door is opened quickly, the straight surface of the latch head can not come out from the groove of the door frame There is a problem in that the door is not opened smoothly as it is caught in the groove of the door frame and the door is not opened until the end of the latch head comes out of the door frame and the end of the latch head comes out of the door frame There has been a problem that the opening operation of the door is not smooth as the instantaneous door is suddenly opened.

Korea registered patent: 10-0909560 (Notice day 2009.07.27) Korean Registered Patent: 10-1453945 (Notification date October 23, 2014)

SUMMARY OF THE INVENTION The present invention has been made to solve the conventional problems,

It is an object of the present invention to provide a door opening / closing device that can easily open and close a door only by pushing and pulling the door without rotating the door handle, improve the ease of use by smoothly opening the door, and stably maintaining the closed state of the door .

Another object of the present invention is to provide a sliding door device capable of detecting a door being opened as well as a smooth opening operation due to rolling motion of a roller when the door handle is pushed or pulled in a direction in which the door is opened, The latch head is retracted into the latch housing and rotated around the hinge so that the linear face of the conventional latch head hits the groove of the door frame to solve the problem that the door is not opened smoothly, The present invention provides a door opening / closing device that solves the problem that the door is suddenly opened because the straight surface smoothly slips out of the door of the door sequentially.

Another object of the present invention is to provide a door opening / closing apparatus which can open a door conveniently and smoothly with a small force, such as a child and a senior citizen, with a small hand, and can minimize noise generated when the door is opened .

According to another aspect of the present invention, there is provided a door opening and closing apparatus including: a handle unit installed on a front surface and a rear surface of a door to enable a pressing operation and a pulling operation; An opening / closing unit coupled to the handle portion and installed inside the door and receiving the power when the grip portion is moved and converting the power in a direction perpendicular to the moving direction of the grip portion; And a latch unit coupled to the opening and closing unit and being moved in a direction perpendicular to the moving direction of the handle, and opening or closing the door by an operation of protruding or pulling in the side of the door,

The latch unit includes a latch housing formed on one side thereof with an opening communicating with the outside and inserted into a side of the door, a first engaging portion movably coupled to the latch housing and protruding outward from the upper end of the latch, A latch head hinged to one end of the first end of the guide body and protruding outwardly of the opening, a first end coupled to the latch head, and a second end coupled to the second end of the guide, A latch bar coupled to the opening and closing unit through the center of the body and the latch housing and being moved in a direction perpendicular to a direction in which the door is opened when the door is opened when the door is opened, And the latch head is coupled to the latch unit so that the latch head is not rotated about the hinge when an external force is applied to the latch head. And a stopper for restricting movement of the latch bar and allowing movement of the latch bar so that the latch head is rotated about the hinge when the latch bar is moved according to the opening of the door.

Here, the latch bar is provided with a latching jaw having a slope of a soft rising curve at a position corresponding to the stopper, and the stopper is hooked on the latching jaw of the latching bar at one end and caught at the inner surface of the latching housing at the other end And the other end of the stopper is located on the inner surface of the latch housing at a rear portion of the stopper moving section, And a rotation inducing hole for allowing rotation of the pin about the pin without being engaged is formed.

Wherein the latch housing has a hollow body having an opening formed on one side thereof and a rear plate covering the rear side of the hollow body to form the receiving portion, And a second recess formed perpendicularly to the rear plate corresponding to the first recess.

One end of the stopper is formed in an arc shape to roll on a slope of a soft rising curve when the latch bar is moved, and a roller that rolls along the inner surface of the housing is coupled to the other end of the stopper .

The stopper and the second engaging portion are connected to a restoring spring for restoring the stopper to its original state upon rotation of the stopper.

In addition, an elastic spring is provided between the rear surface of the guide body and the rear inner wall of the latch housing to elastically support the guide body so that the latch head protrudes outside the opening of the housing.

The latch head has a first coupling part protruded for hinge-coupling with the first coupling part, a curved groove is formed on a surface contacting the first coupling part, And a step is formed at the lower end of the circular arc surface of the latch head to engage with the opening of the latch housing.

The guide body is integrally provided at its lower end with guide slopes having guide slopes for receiving the lower ends of the latch heads rotated about the hinges when the latch bars are moved.

In addition, a regulation protrusion for regulating the movement distance of the guide body is provided at the lower surface of the bottom surface of the guide body.

Wherein the opening and closing unit includes a shaft coupled to the handle and having a power transmitting portion for transmitting a force during the section movement, the shaft being installed in the door to be able to move within the door, A slider having a sliding guide portion formed by a force and being converted into a direction perpendicular to a moving direction of the section during the section movement; And a latching part coupled to the sliding body that moves in the sectional direction.

Here, the sliding body is a roller that rolls along the sliding guide portion.

In addition, the opening / closing unit may include a shaft coupled to the handle and having a power transmitting portion for transmitting a force during the section movement, the shaft being installed within the door so as to be able to move within the door, A slider including a slider for moving the slider by a force transmitted thereto and transmitting power during the slider movement, and a slide guide for converting power in a direction perpendicular to the slider moving direction of the slider, And a latching part for moving in a direction perpendicular to the movement of the shaft by a force transmitted from the latching part.

Here, the sliding member is a circular seal slidingly contacting the slide guide.

The slide guide may be a free-form curved surface, and the slide guide may include a first inclined surface.

The sliding body may include a second inclined surface corresponding to the first inclined surface.

In addition, the sliding body is integrally formed with the latch or the slider or is detachably coupled thereto.

The return spring is further provided at the rear of the slider to compress the slider when the slider is moved, and to restore the slider to a pre-movement state when the force during the movement of the slider is removed.

Wherein the power transmitting portion is a pressing protrusion capable of pressing the slider when the shaft is moved in the section, wherein the pressing protrusion is first bent at an angle to the longitudinal direction at one point of the shaft, And a lower end thereof is bent in a tertiary shape so as to be horizontal with respect to the longitudinal direction of the shaft, thereby forming a triangular shape.

The latch transmission unit may include a return spring that compresses when the section is moved, and then restores the state before the section is moved when the force of the section is removed.

The grip portion includes a hollow fixing bracket fixed to one surface and a rear surface of the door, and a grip portion into which one end is inserted into the fixing bracket so as to be pressed and pulled.

In addition, the knob portion is provided with a locking device coupled to both ends of the shaft to control the rotation of the shaft, wherein the locking device is a key bundle into which a key is inserted or an operation lever .

A guide member is provided at one side of the slider so as to cross the inside of the door and have both ends thereof coupled to the handle, and the slider is slidably coupled to the guide member.

Here, the guide member is detachably coupled to the handle portion and has a channel shape whose one side is opened along the longitudinal direction, the shaft penetrates the inside of the guide member, and the slider is inserted into the guide member And the slide guide protrudes outside the guide member across the bottom surface of the shaft, and the slide guide is formed at the free end of the slider.

Further, the handle portion is constituted by a grip portion fixed to one surface of the door, and a push member pressably coupled to the center of the grip portion and having one end coupled to the shaft.

The antibacterial material may include a hand sanitizer and a fragrance agent. The antimicrobial material may include a hand sanitizer and a fragrance agent. The antibacterial material may include a hand sanitizer and a fragrance agent. .

The door may further include a cover which covers an outer side of the shaft, the slider, and the latch transmission portion and guides the movement of the latch transmission portion. The cover has a through hole through which the shaft passes, A guide piece for guiding the movement of the latch transmission part is formed on the upper and lower portions of the through hole, and a fixture bolt-assembled to the door at regular intervals along the outer peripheral surface.

According to the embodiments of the present invention, the door is opened by pushing or pulling the handle of the door in the direction in which the door is opened, thereby improving the ease of use and practicality.

Furthermore, the structure of the door opening / closing apparatus can be greatly simplified by the sliding guide portion for converting the power in the direction perpendicular to the moving direction of the shaft and the sliding body moving along the sliding guide portion along the sliding guide portion, And it is easy to assemble so that productivity can be improved and the cost of the product can be lowered.

Further, there is no fear of failure due to the correct operation, and the user can sense the smooth opening operation of the door as the sliding body rolls on the sliding guide portion of the free-form surface, thereby improving the safety of the door opening and closing operation.

In addition, when the force F2 is applied to the latch bar of the latch unit, the latch head is moved into the accommodating portion by the force of the latch bar while moving, and the latch head is rapidly rotated around the hinge, And the straight surface of the latch head smoothly slips out sequentially from the grooves of the door frame in the course of the rotation of the latch head about the hinge so as to solve the problem that the door is opened suddenly It is effective.

In addition, a user with a weak hand, such as a child and an elderly person, can open the door conveniently and smoothly with less force, and the noise generated when the door is opened can be minimized.

In addition, when a crowd crowded in a government office or a theater is operated, it is operated by a pressing type rather than a rotary type so that it is easy to open a door to prevent a safety accident. Especially, when a door is melted when a fire occurs, In this case, it is possible to operate easily, thereby preventing a safety accident.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing an appearance of an entrance opening / closing apparatus according to an embodiment of the present invention; FIG.
2 is an exploded perspective view showing an entrance opening / closing apparatus according to an embodiment of the present invention;
3 is a perspective view for explaining major components of an entrance opening / closing apparatus according to an embodiment of the present invention;
4 to 9 are enlarged cross-sectional views of main parts and sliding guide portions of the opening and closing unit in the door opening / closing apparatus according to an embodiment of the present invention.
10 is a perspective view showing the appearance of the latch unit in the door opening / closing apparatus according to the present invention.
11 is an exploded perspective view showing the latch unit of Fig. 10 in an exploded state.
12 is a cross-sectional view of the latch unit of FIG. 10;
13 is a sectional view showing the state in which the door is closed when the latch head is not rotated due to the limitation of the movement of the latch bar by the stopper even when the force of F1 is applied to the latch head when the door is closed. .
FIGS. 14 and 15 illustrate an operation in which the stopper is rotated to allow movement of the latch bar when the latch bar is moved by the force F2 applied to the latch bar when the door is opened, and an operation in which the latch head is rotated around the hinge FIG.
16 (a) and 16 (b) are perspective sectional views for explaining the operation of the door opening / closing apparatus according to the present invention in a locked state.
17 to 19 are perspective sectional views for explaining the opening and closing operation of the door in the unlocked state of the door opening / closing apparatus according to the present invention.
20 is a sectional view showing an embodiment of a handle for improving the stability of the door opening / closing apparatus according to the embodiments of the present invention.
FIG. 21 is a sectional view showing an embodiment in which an antibacterial part is provided in an entrance opening / closing apparatus according to embodiments of the present invention; FIG.

These and other objects, features and other advantages of the present invention will become more apparent by describing in detail preferred embodiments of the present invention with reference to the accompanying drawings. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an entrance opening / closing apparatus according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. For purposes of this specification, like reference numerals in the drawings denote like elements unless otherwise indicated.

1 and 2, the overall structure of an entrance opening / closing apparatus according to an embodiment of the present invention will be described. Referring to FIG. 3, an opening and closing unit of an entrance opening and closing apparatus according to an embodiment of the present invention The latching unit will be described with reference to FIGS. 4 to 9, the latching unit will be described in detail with reference to FIGS. 10 to 15, and FIGS. 16 to 19 will be described with reference to FIGS. The operation of the door opening / closing apparatus will be described.

As shown in FIGS. 1 to 3, the door opening / closing apparatus according to an embodiment of the present invention includes a handle 100 installed on one side and a rear side of a door so as to perform a pressing operation and a pulling operation; An opening / closing unit (200) coupled to the handle portion and installed inside the door and receiving the power at the time of moving the handle portion to convert the power into a direction perpendicular to the moving direction of the handle portion; And a latch unit (300) coupled to the opening / closing unit and moved in a direction perpendicular to the moving direction of the handle to open or close the door by projecting or pulling in the side of the door.

First, a hole is formed on one surface and a rear surface of the door so as to penetrate the inside of the door, and the handle 100 is coupled to the door so that pressing and pulling operations can be performed on one surface and the rear surface of the door.

The handle 100 includes a fixing bracket 110 coupled to one surface and a rear surface of the door and a gripper 120 fitted to the fixing bracket 110 and configured to be pushed and pulled.

The fixing bracket 110 is formed with a hollow receiving portion 111 at its center, and the receiving portion 111 communicates with the inside of the door through a hole formed on one side and the back side of the door. The fixing bracket 110 fixed to one surface of the door and the fixing bracket 110 fixed to the back surface of the door are connected to each other by a fixing pin 112 passing through the inside of the door.

The grip portion 120 has a shape that can be easily gripped by the user's hand. A neck portion integrally extended from the grip portion 120 is inserted into the receiving portion 111 of the fixing bracket, As shown in FIG.

A locking device 130 is installed at the center of the gripper 120. Here, the locking device 130 may be a key bundle or an operation lever. In order to allow the user to operate the locking device 130, the key insertion groove of the key bundle or the operation surface of the operation lever is disposed on the front surface .

An opening / closing unit 200 is provided inside the door for receiving the power when the grip part 100 is moved and converting the power into a direction perpendicular to the moving direction of the grip part 100.

One embodiment of the opening and closing unit 200 includes a shaft 210 provided with a power transmission unit 215, a slider 220 formed with a slide guide unit 222, and a latch transmission unit 270).

The shaft 210 is coupled to a locking device 130 provided at the center of the handle, and is installed to be movable in the interior of the door. That is, the shaft 210 is moved by the pressing operation and the pulling operation of the pull tab 100, and the left and right rotations are performed according to the operation of the lock device 130. Here, the sectional movement of the shaft 210 includes horizontally moving within the door.

A power transmitting portion 215 is provided at one point of the shaft 210 to transmit a force when the shaft 210 is moved, that is, horizontally.

The power transmitting portion 215 may be formed of a pressing protrusion protruding from the surface of the shaft 210 and capable of pressing the slider 220 when the shaft 210 is horizontally moved. Here, the pressing protrusion may be formed by bending the shaft 210 as shown in FIGS. That is, at one point of the shaft, the inclined upper end may be secondarily bent so as to be vertically downward, and the lower end thereof may be thirdarily bent horizontally to be a triangular pressing protrusion have.

The slider 220 is positioned to move horizontally in association with the shaft 210 by a force transmitted from the power transmission unit 215 when the shaft 210 is horizontally moved by being hooked on the power transmission unit 215. [

One side of the slider 220 is provided with a guide member 230 which traverses the inside of the door and both ends of the guide member 230 are coupled to the handle. The slider 220 is slidably engaged with the guide member 230, (Not shown).

2 and 3, the guide member 230 has a channel shape in which both ends of the guide member 230 are detachably coupled to the handle, and one side of the guide member 230 is opened along the longitudinal direction. The shaft 210 penetrates the inside of the guide member 230 and the slider 220 slidably coupled to the guide member 230 is moved to the other side of the shaft 210 across the bottom surface of the shaft 210 And the slide guide 222 is formed at the free end of the slider 220. [ At this time, the surface of the slider 220 receiving the force from the power transmitting portion 215 is formed with a step 224 so that the transmission of the force is excellent, and the slide guide portion 222 is provided with the step 224 ).

An engaging body 260 coupled to the latch transfer portion 270 is brought into contact with the slide guide portion 222 formed on the slider 220.

The latch transfer portion 270 is formed in a hollow shape so that the shaft 210 passes through the center thereof and has a coupling hole 272 formed at one side thereof to which the latch unit 300 is coupled, 210, respectively. An engaging body 260, which rolls along the slide guide portion 222, is coupled to the inside of the latch transfer portion 270.

The sliding body 260 moves the latch transmission part 270 in the direction perpendicular to the movement of the shaft 210 while moving the sliding body along the sliding guide part 222.

Figs. 4 to 6 are enlarged cross-sectional views of main portions showing embodiments of the sliding body provided in the slide guide portion and the latch transfer portion formed in the slider.

4 is a side view of the slider in which the sliding guide portion 222 of the slider is formed as a straight inclined surface and the sliding body 260 of the latch transfer portion is made of a roller so that when the shaft 210 is horizontally moved, Moves along the guide part 222 while rolling and moves the latch transfer part 270 in the direction perpendicular to the horizontal movement of the shaft 210. [

5 is a perspective view of the slider according to the second embodiment of the present invention. The slide guide 222 of the slider is formed as a free curved surface. When the slide member 260 is made of a roller and the shaft is horizontally moved, And moves the latch transfer part 270 in a direction perpendicular to the horizontal direction of the shaft 210. The latch transfer part 270 is moved in the vertical direction. At this time, the free curved surface smoothes the movement of the rollers, and the roll motion of the rollers is felt in the user's hand which provides the force, so that the opening motion of the door is detected. In addition, the portion of the free-form surface riding on the inclined surface is curved so that the operation of the latching portion 270, which is integrally formed with the sliding body 260, is performed quickly and smoothly.

6 shows that the slide guide portion 222 of the slider is a first inclined surface of a straight line and the sliding body 260 is a second inclined surface corresponding to the first inclined surface, 260 are slid along the first inclined surface to move the latch transfer portion 270 in the direction perpendicular to the horizontal direction of the shaft 210. [

7 to 9 are sectional views showing another embodiment of the opening and closing unit in the door opening / closing apparatus of the present invention.

Another embodiment of the opening and closing unit 200 includes a shaft 210 having a power transmitting portion 215, a slider 220 having a sliding body 260, and a latch transmission portion (270). That is, the description of the shaft 210 having the power transmission portion 215 is the same as that of the embodiment of the opening / closing unit, and the slider 220 is provided with the shaft 210, And a slide guide portion 222 for converting power in a direction perpendicular to the moving direction of the sliding body 260 is formed in the latch transfer portion 270. [

7, the sliding body 260 provided on the slider 220 is formed of a circular rod, and the sliding guide portion 222 formed on the latch transfer portion 270 is formed as a straight inclined surface, and the sliding body 260 The slant surface of the slide guide 222 contacting the circular rod moves in a direction perpendicular to the horizontal movement direction of the circular rod so that the latch transfer portion 270 is perpendicular to the horizontal movement of the shaft 210 Direction.

8, the sliding body 260 of the slider is formed of a circular rod, and the slide guide portion 222 of the latch transfer portion 270 is formed as a free-form surface inclined, The free curved surface of the slide guide 222 that is in contact with the circular rod when horizontally moving the rod moves in a direction perpendicular to the horizontal movement direction of the circular rod so that the latch transmission portion 270 is moved in a direction perpendicular to the horizontal movement of the shaft 210 .

9, the sliding body 260 of the slider is formed of the first inclined surface, and the slide guide portion 222 of the latch transfer portion 270 is formed of the second inclined surface to form the first The second inclined surface of the slide guide portion 222 contacting the first inclined surface moves in a direction perpendicular to the horizontal moving direction of the first inclined surface so that the latch transfer portion 270 is moved in the horizontal direction of the shaft 210 And moves in the vertical direction.

Another embodiment of the opening and closing unit is provided with a sliding body 260 for transmitting a force when the shaft 210 is horizontally moved to the slider 220 and the sliding movement of the sliding body 260 A slide guide 222 for converting the power in a direction perpendicular to the direction of the shaft 210 is formed so that when the shaft 210 is horizontally moved, the latch transfer part 270 is moved in a direction perpendicular to the horizontal movement of the shaft 210 The door is opened.

On the other hand, a return spring 250 is provided at the rear of the slider 220 and has one end fixed to the high-speed piece 240 protruding from the guide member 230 supporting the slider 220 and the other end fixed to the rear surface of the slider 220, Respectively.

The return spring 250 compresses the horizontal movement of the slider 220 and restores the slider 220 to the pre-movement state when the horizontal movement force is removed.

The latch unit 300 is coupled to the coupling hole 272 of the latch transfer unit 270.

Figs. 10 to 15 explain the configuration and operation of the latch unit. Fig.

10 to 15, the latch unit 300 includes a latch housing 310, a guide body 320, a latch head 330, a latch bar 340, and a stopper 350 .

The latch housing 310 has a receiving portion 317 therein and an opening 318 communicating with the outside is formed on one surface of the receiving portion 317 and inserted into the side surface of the door.

The latch housing 310 includes a hollow body 311 having an opening 318 formed on one side thereof and a guide body 320, a latch head 330, a latch bar 340, The rear plate 313 covering the rear of the hollow body 311 is coupled to form the receiving portion 317 so that the receiving portion 317 is inserted and assembled.

A first concave groove 312 is formed at the rear end of the hollow body 311 and a second concave groove 314 is formed vertically corresponding to the first concave groove 312 in the rear plate 313. [ The first concave groove 312 and the second concave groove 314 are formed by a rotation guide hole 315 for allowing the rotation of the stopper to be described later due to the coupling of the hollow body 311 and the rear plate 313, ). A through hole 316 through which the latch bar 340 described later is passed is formed at the center of the rear plate 313 in such a manner as to be connected to or separated from the rotation inducing hole 315.

The guide body 320 is inserted into the receiving portion 317 of the latch housing 310.

The outer surface of the guide body 320 has the same shape as the inner surface of the receiving portion 317 of the latch housing and is received in the receiving portion 317. When the pulling or pushing force is applied in the state of being accommodated in the accommodating portion 317, the pushing or pushing force is moved along the inner surface of the accommodating portion 317.

The guide body 320 includes a first engaging portion 321 protruding outward from the upper end of one side thereof and a second engaging portion 322 protruding outward from the upper end of the back body 320. A latch bar 340 are passed through the center hole 323.

A regulating protrusion 324 protruding from the rear surface of the guide body 320 regulates the movement distance of the guide body 320. The regulating protrusion 324 first contacts the rear plate 313 of the latch housing 310 when the guide body 320 moves so that the guide body 320 is not moved any further.

A latch head 330 is coupled to the first engaging portion 321 of the guide body 320.

The latch head 330 is formed in a fan shape having a circular arc surface and an arcuate arc surface in consideration of closing and opening of the door.

A first engaging piece 331 for engaging with the first engaging portion 321 of the guide body is formed at one end of the latch head 330, that is, at one end of the straight surface.

The first engaging piece 331 of the latch head 330 is engaged with the first engaging portion 321 of the guide body 320 and the hinge 332 so that the latch head is rotatable about the hinge 332 . The hinge 332 has one end coupled to the first coupling portion 321 and the other end coupled to the first coupling piece 331 of the latch head 330 is wound on the hinge 332. The spring 333 is wound on the hinge 332, Thereby giving restoring force when the latch head 330 rotates.

In addition, the latch head 330 is formed with a curved groove 331a on the side where the first engaging portion 321 of the guide body abuts. The groove 331a of the curved surface guides smooth rotation without friction with the first engagement portion 321 when the latch head 330 rotates.

A second engaging piece 334 for engaging the pin 335 with the latch bar 340 is formed on the surface to which the latch bar 340 is coupled.

An elastic spring 336 is mounted between the rear surface of the guide body 320 and the rear plate 313 of the latch housing 310 to push the guide body 320 with an elastic force.

The resilient spring 336 is inserted into the groove 336a formed on the back surface of the guide body 320 and the protrusion 336b formed on the rear plate 313. The resilient spring 336 pushes the guide body 320 with the resilient force, Is protruded outside the opening 318 of the latch housing.

As a result, the latch head 330 coupled to the first engaging portion 321 of the guide body 320 maintains a state protruding outside the opening portion 318 of the latch housing. At this time, a step 337 is formed at the lower end of the circular arc surface of the latch head 330 so as to engage with the inner jaw of the opening 318 of the latch housing. The step 337 is formed on the way that the latch head 330 protrudes outward, The rotation angle is limited so that the latch head 330 does not deviate from the opening.

The latch bar 340 is coupled to the second engaging piece 334 of the latch head 330.

One end of the latch bar 340 is coupled to the second engaging piece 334 of the latch head by a pin 335 and the other end of the latch bar 340 is inserted through the through hole 316 formed in the center hole 323 of the guide body and the rear plate 313 of the latch housing. And is coupled to the coupling hole 272 of the latch transmission portion.

A coupling hole 335a for coupling the pin 335 with the second coupling piece 334 is formed at one end of the latch bar 340. The coupling hole 355a is formed at a position where the latch head 330 is coupled to the hinge 332 The latch bar 340 coupled to the second engagement piece 334 of the latch head 330 is formed as a long hole that ensures the flow distance of the pin 335 so as to maintain the horizontal state.

When the user pushes or pulls the door handle to open the door, the latch bar 340 moves in a direction perpendicular to the opening direction of the door in cooperation with the operation of the opening / closing unit 200 interlocked with the door.

That is, when the latch bar 340 moves in the direction of the force F2 by the force F2 acting in the direction perpendicular to the direction in which the door is opened, the latch head 330 coupled to the latch bar 340, The guide body 320 coupled with the latch head 330 is also moved along with the movement of the bar 340.

The latch head 330 is retracted into the receiving portion 317 of the latch housing and the regulating protrusion 324 protruding from the back surface of the guide body 320 is caught by the rear plate 313 of the latch housing, The latch head 330 is rotated about the hinge 332 by the force of the latch bar 340 to be turned.

At this time, when the latch head 330 rotates, the pin 335 connecting the second engaging piece 334 of the latch head and the latch bar 340 moves within the engaging hole 335a of the long hole, Is maintained in a horizontal state without being rotated along the latch head 330.

A guide piece 325 having an inclined guide surface 326 is integrally formed at the lower end of the guide body 320 to receive the lower end of the latch head 330 which is rotated around the hinge 332.

The guide piece 325 forms a guiding inclined surface 326 having a curved surface similar to the rotational angle of the latch head 330 to stably guide the movement of the latch head 330 which is tilted about the hinge 332.

Herein, the operation in which the latch head 330 is rotated about the hinge 332 and is turned is performed such that when the latch bar 340 moves in the direction of the force F2, the force that the latch bar 340 pulls the latch head 330 The movement of the latch bar 340 due to the rotation of the latch head about the hinge 332 when the force F1 is applied to the straight surface of the latch head 330 may be reversed .

This is not intended to open the door by pushing or pulling the door handle in the closed state of the door, but even if an external force is applied to the door, external force is applied to the latch head 330, the door may be opened arbitrarily.

Therefore, the latch head 330 is not intended to be opened when an external force is applied to the latch head 330, so that a stopper (not shown) for restricting the movement of the latch bar 340 to prevent the latch head 330 from being rotated around the hinge 332 350 are provided.

The stopper 350 is coupled to the second engaging portion 322 of the guide body 320 so that the latch head 330 is not rotated about the hinge 332 when the force F1 is applied to the latch head 330 The movement of the latch bar 340 is restricted and the latch bar 340 is rotated about the hinge 332 in accordance with the movement of the latch bar 340 according to the interlocking of the opening and closing unit when the door is opened. As shown in FIG.

Here, the latch bar 340 is formed with a latching protrusion 341 having a slope 342 having a soft rising curve at a position corresponding to the stopper 350.

The stopper 350 has a pin 351 coupled to the second engaging portion 322 so that one end of the stopper 350 is engaged with the latching protrusion 341 of the latch bar 340 and the other end of the stopper 350 is engaged with the inner surface of the latch housing 310, The other end of the stopper 350 is located outside the center of the pin 351 and has a slope.

At this time, one end of the stopper 350 is formed in an arc shape so as to roll on a slope of a soft rising curve when the latch bar 340 is moved. On the other end of the stopper 350, 352 are coupled. Here, the roller 352 provides an adhesive force to the inner surface of the latch housing 310 to prevent the stopper 350 from rotating. When the stopper 350 moves, the roller 352 rolls along the inner surface of the latch housing 310, ).

One end of the stopper 350 and the second engagement portion 322 are coupled to the stopper 350 and the other end of the stopper 350 is coupled to the second engagement portion 322, And a restoring spring 353 for restoring the restoring force is coupled.

The stopper 350 is engaged with the latching protrusion 341 of the latch bar and the other end of the stopper 350 is hooked to the inner surface of the latch housing 310 in a state in which the other end is tilted outwardly from the center of the pin, Even if an external force is applied to the latch head 330, the latch head 330 is rotated around the hinge 332 or the latch bar 340 is not rotated even when an external force Fl is applied to the latch head 330 The door is not moved, and the door is not opened arbitrarily.

14, when the force F2 acts in a direction perpendicular to the direction in which the door is opened according to the interlocking of the opening and closing unit when the door is opened, the latch bar 340 moves in the direction of the force, The guide body 320 is pulled together with the latch head 330 coupled to the latch bar 340 to move in the moving direction of the latch bar 340 and the stopper coupled to the second engaging portion 322 of the guide body 350 are also moved to be positioned in the rotation guide hole 315 formed in the rear portion of the latch housing 310. [

15, when the stopper 350 is positioned in the rotation inducing hole 315, the other end of the stopper 350 is free from being caught by the inner surface of the latch housing 310, One end of the latch bar 340 is rotated about the pin 351 while allowing the latch bar 340 to move along the inclined surface 342 having a smooth upward curve in accordance with the movement of the latch bar 340.

The operation of the door opening / closing apparatus according to one embodiment of the present invention will be described as follows. Here, the opening / closing unit will be described with reference to the configuration of one embodiment.

FIGS. 16A and 16B are views for explaining the operation of the door opening / closing apparatus according to the present invention in the locked state, and FIGS. 17 to 19 are views for explaining the operation of the door opening / And the operation of the opening and closing unit and the latch unit.

First, in order to lock the door so that the door is not opened, the latch head of the door opening / closing apparatus should be maintained in a state protruding to the outside of the door.

As shown in FIG. 16 (a), the door opening / closing device is locked in a state where the key is inserted into the locking device 130 provided in the handle 100 to rotate the key in one direction, or the operation of the locking device 130 When the lever is rotated in one direction, the shaft 210 connected to the lock device 130 is rotated in one direction, so that the power transmitting portion 215 is not in contact with the slider 220.

16 (b), the shaft 210 is moved horizontally when the grip portion 100 is pushed or pulled, and the power transmission portion 215 provided on the shaft 210 moves the slider 220 And passes without pressure.

As a result, the slider 220 does not move because the force is not transmitted from the power transmitting portion 215 and the latch transfer portion 270 does not move, and the latch head 330 of the latch unit 300 is protruded That is, the closed state of the door is maintained. That is, even if the handle 100 is pushed or pulled, the door is not opened.

17, when the locking device 130 provided on the handle 100 is rotated in the other direction, the shaft 210 connected to the locking device 130 is rotated in the other direction And the power transmitting portion 215 provided on the shaft 210 is positioned at the position where the power transmitting portion 215 is engaged with the slider 220. [

18, when the grip part 100 is pushed or pulled, the shaft 210 is horizontally moved, and the power transmission part 215 presses the slider 220 to rotate the shaft 210 horizontally The slider 220 moves horizontally like the shaft 210 by the force of the movement.

The sliding body 260 which is in contact with the slide guide part 222 by the horizontal movement of the slider 220 moves in the direction perpendicular to the horizontal movement of the shaft 210 while moving along the slide guide part 222 At the same time, the latch transfer part 270 integrally formed with the sliding body 260 moves in the direction perpendicular to the horizontal movement direction of the shaft 210.

The interval movement of the latch transfer part 270 moves the latch bar 340 coupled to the coupling hole 272 and the guide body 320 is drawn together with the latch head 330 coupled to the latch bar 340 The stopper 350 coupled to the second engaging portion 322 of the guide body is also moved to be engaged with the rotation guide hole 315 formed in the rear portion of the latch housing 310 .

 19, when the stopper 350 is positioned in the rotation inducing hole 315, the other end of the stopper 350 is free from being caught by the inner surface of the latch housing 310, One end of the latch bar 340 is rotated about the pin 351 while allowing the latch bar 340 to move along the inclined surface 342 having a smooth upward curve in accordance with the movement of the latch bar 340. At this time, the latch head 330 is drawn by the movement of the latch bar 340 into the receiving portion 317 of the latch housing, and the regulating protrusion 324 protruding from the back surface of the guide body 320 is engaged with the rear plate 313 and the guide body 320 can not be moved any further, the latch head 330 is rotated about the hinge by the force of the latch bar 340 so that the door is opened. At this time, the return spring 250 mounted on the rear side of the slider 220 is compressed by the horizontal movement of the slider 220, and the return spring 280 mounted on the rear side of the latch transfer portion 270, The elastic spring 336 for resiliently urging the guide body 320 is in a compressed state.

Since the portion of the sliding body that rides on the inclined surface of the sliding guide portion is formed of the free curved surface, the latch transmission portion and the latch bar are rapidly moved when the door is opened, and the latch head is rotated around the hinge, The latch head is quickly inserted into the inside of the door so that there is no feeling of being caught in opening the door. In addition, by allowing the sliding body of the latch transmission to move along the free curved surface of the slider, the smoothness of the opening operation can be felt.

19, when the hands are released from the knobs that have been pressed or pulled, the return springs 250 and 280 that have been compressed due to the removal of the force that horizontally moves the shaft 210 and the slider 220 are restored, And the latch transfer unit 270 to the pre-movement state.

At this time, the slider 220 transmits the restoring force of the return spring 250 to the power transmitting portion 215 to return the shaft 210 to the pre-movement position, and further, along the slide guide portion 222 of the slider 220 The moved sliding body 260 is moved in the direction perpendicular to the moving direction of the shaft 210 along the slide guide 222 of the slider and the latch transfer part 270 is returned to the state before shifting do.

The return force of the elastic spring 336 which is in a compressed state due to the movement of the guide body 320 is reduced due to the force F2 acting on the latch bar 340 being removed, The guide body 320 is moved to the original position and the latch head 330 is rotated in the original position by the spring 333 which gives the restoring force to the rotated latch head 330 to cause the opening portion 318 of the latch housing 310 to rotate, The stopper 350 is again moved into the latch housing 310 by the movement of the guide body 320 and caught by the latching protrusion 341 of the latch bar and the inner surface of the latch housing 310 The state shown in Fig. 17 which restricts the movement of the latch bar 340 is obtained. That is, the latch head 330 protrudes to the outside of the latch housing 310, that is, to the outside of the door, so that the door is closed.

17, the latch unit 300 is configured such that one end of the stopper 350 is engaged with the latching jaw 341 of the latch bar and the other end is tilted to the outside of the center of the pin 351 Even if an external force is applied to the stopper, it is not rotated around the pin 351. As a result, even if an external force F1 is applied to the latch head 330, The head 330 is rotated about the hinge 332 or the latch bar 340 is not moved, and the door is not opened arbitrarily. That is, when an external force is applied to the door when the door is closed and an external force is applied to the latch head 330, the door is not opened arbitrarily.

20 is an enlarged cross-sectional view showing an embodiment of a handle for improving the stability of the door opening / closing apparatus according to the embodiments of the present invention. FIG. 21 is a cross-sectional view of the door opening / closing apparatus according to the embodiment of the present invention, Fig. 3 is an enlarged cross-sectional view of the main part showing an embodiment.

The grip portion 100 of the door opening / closing device is configured to press the grip portion 120 provided on the outer side of the handle portion when the door is opened. As a result, when the handle is unintentionally pressed due to leaning or colliding with the door, a safety accident such as a moment when the user falls due to the force of leaning against or colliding with the door as the door is opened may occur.

In consideration of this, the grip portion 100 provided on the outer side of the handle portion is not pressed by the handle portion 100, which is coupled to the door face so that the pushing operation can be performed, but when the push member located at the center of the handle portion is pressed, So that the door is opened due to unintentional depression of the handle, or a safety accident can be prevented from occurring.

As shown in FIG. 20, the handle 100, which is coupled to one side of the door so as to be pressed, is configured such that the handle 120 is fixed to one side of the door, and is pressed to the center of the handle 120 When the push member 121 having one end coupled to the shaft 210 is not pressed by the grip portion 120 of the grip portion but the push member 121 provided at the center of the grip portion 120 is pressed, So that the handle can be prevented from being pressed unintentionally, thereby improving the safety.

21, the antibacterial part 500 for spraying an antibacterial substance inside the grip part 100 may be provided so that the grip part 100 is moved in the horizontal direction of the shaft 210 by the pressing operation and the pulling operation of the grip part 100, The antimicrobial substance is injected toward the outside from the inside of the handle 100 to sterilize the hand and the handle of the user so that contamination by the bacteria can be prevented.

Herein, the antimicrobial substance includes a hand sanitizer and a fragrance for improving air in the room, and may include all sanitary disinfectants and antibacterial agents.

As described above, according to the present invention, the door is opened by pushing or pulling the handle of the door in the direction in which the door is opened, thereby improving convenience and practicality of use.

Furthermore, the structure of the door opening / closing apparatus can be greatly simplified by the sliding guide portion for converting the power in the direction perpendicular to the moving direction of the shaft and the sliding body moving along the sliding guide portion along the sliding guide portion, And it is easy to assemble, so that the productivity can be improved and the cost of the product can be lowered.

In addition, there is no fear of failure due to the correct operation, and the user can sense the smooth opening operation of the door as the sliding body rolls on the sliding guide portion of the free-form surface, thereby improving the safety of the door opening and closing operation.

In addition, when the force F2 is applied to the latch bar of the latch unit, the latch head is moved into the accommodating portion by the force of the latch bar while moving, and the latch head is rapidly rotated around the hinge, There is no feeling of being caught in opening the door and the straight surface of the latch head smoothly slips out sequentially from the groove of the door frame in the course of the rotation of the latch head about the hinge so as to solve the problem that the door suddenly opens do.

In addition, when a crowd crowded in a government office or a theater is operated, it is operated by a pressing type rather than a rotary type so that it is easy to open a door to prevent a safety accident. Especially, when a door is melted when a fire occurs, In this case, it is possible to operate easily and prevent a safety accident.

In addition, safety may be improved by preventing the handle from being pressed unintentionally, and if the force during horizontal movement of the shaft is applied, the antimicrobial material may be sprayed to the outside of the handle to prevent contamination by bacteria.

Although the preferred embodiments of the present invention have been described, the present invention is not limited to the specific embodiments described above. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the appended claims, And equivalents may be resorted to as falling within the scope of the invention.

100: Handle 110: Fixing bracket
111: receiving part 112: fixing pin
120: grip portion 121: push member
130: locking device 200: opening / closing unit
210: shaft 215: power transmission portion
220: Slider 222: Slide guide
224: step 230: guide member
240: Fixing piece 250: Return spring
260: Slide main body 270: Latch transmission
272: coupling hole 280: return spring
300: latch unit 310: latch housing
311: Body 312: First Incident
313: rear plate 314: second entry groove
315: rotation inducing hole 316: through hole
317: accommodating portion 318: opening
320: guide body 321: first engaging portion
322: second coupling portion 323: center hole
324: regulating projection 325: guide
326: guide slope 330: latch head
331: first coupling piece 332: hinge
333: spring 334: second engagement piece
335: pin 336: elastic spring
337: step 340: latch bar
341: stopping jaw 342: inclined surface
350: stopper 351: pin
352: roller 353: restoring spring
400: cover 410: through hole
420: guide piece 430: fastener
500: Antibacterial part

Claims (28)

A handle portion provided on the front and back surfaces of the door so as to be capable of being pushed and pulled; An opening / closing unit coupled to the handle portion and installed inside the door and receiving the power when the grip portion is moved and converting the power in a direction perpendicular to the moving direction of the grip portion; And a latch unit coupled to the opening and closing unit and being moved in a direction perpendicular to the moving direction of the handle, and opening or closing the door by an operation of protruding or pulling in the side of the door,
The latch unit includes a latch housing formed on one side thereof with an opening communicating with the outside and inserted into a side of the door, a first engaging portion movably coupled to the latch housing and protruding outward from the upper end of the latch, A latch head hinged to one end of the first end of the guide body and protruding outwardly of the opening, a first end coupled to the latch head, and a second end coupled to the second end of the guide, A latch bar coupled to the opening and closing unit through the center of the body and the latch housing and being moved in a direction perpendicular to a direction in which the door is opened when the door is opened when the door is opened, And the latch head is coupled to the latch unit so that the latch head is not rotated about the hinge when an external force is applied to the latch head. And a stopper for restricting movement of the latch bar and allowing movement of the latch bar so that the latch head is rotated about the hinge when the latch bar is moved according to the opening of the door. The method according to claim 1,
Wherein the latch bar is provided with a latching jaw having a slope of a soft rising curve at a position corresponding to the stopper,
Wherein the stopper is connected to the second engaging portion by a pin so that one end of the stopper is engaged with the latching jaw of the latch bar and the other end of the stopper is engaged with the inner surface of the latch housing and the other end of the stopper is located outside the center of the pin, In addition,
Wherein the latch housing is formed with a rotation guide hole for allowing the other end of the stopper to rotate around the pin without being caught by the inner surface of the latch housing. 3. The method of claim 2,
The latch housing has a hollow body having an opening formed on one side thereof and a rear plate covering the rear side of the hollow body,
Wherein the rotation induction hole is formed by a combination of a first recessed groove formed in the rear end of the hollow body and a second recessed groove formed perpendicular to the rear plate corresponding to the first recessed groove. . 3. The method of claim 2,
Wherein one end of the stopper is formed in an arc shape so as to roll on an inclined surface of a soft rising curve when the latch bar is moved, and a roller that rolls along the inner surface of the housing is coupled to the other end of the stopper. Device. 3. The method of claim 2,
Wherein the stopper and the second engaging portion are connected to a restoring spring for restoring the restoring force when the stopper rotates. The method according to claim 1,
Wherein an elastic spring is provided between the rear surface of the guide body and the rear inner side wall of the latch housing to elastically support the guide body so that the latch head protrudes outside the opening of the housing. The method according to claim 1,
The latch head has a first coupling part protruded for hinge-coupling with the first coupling part, a curved groove is formed on a surface contacting the first coupling part, And a stepped portion formed at an opening of the latch housing is formed at a lower end of a circular arc surface of the latch head. The method according to claim 1,
Wherein a guide member having an induction slope is integrally provided at a lower end of the guide body so as to receive a lower end portion of the latch head rotated around a hinge when the latch bar is moved. The method according to claim 1,
And a regulating protrusion for regulating the movement distance of the guide body is provided at the lower surface of the bottom surface of the guide body. The method according to claim 1,
Wherein the opening and closing unit includes a shaft coupled to the handle and having a power transmitting portion for transmitting a force during the section movement, the shaft being installed in the door to be able to move within the door, A slider having a sliding guide portion formed by a force and being converted into a direction perpendicular to a moving direction of the section during the section movement; And a latch transmission unit to which a sliding body moving in a section is coupled. The method according to claim 1,
Wherein the opening and closing unit includes a shaft coupled to the handle and having a power transmitting portion for transmitting a force during the section movement, the shaft being installed in the door to be able to move within the door, A slider having a slider for moving the slider by force and transmitting power when the slider is moved; and a slide guide for converting power in a direction perpendicular to the slider moving direction of the slider, And a latch transmission part that moves in a direction perpendicular to the movement of the shaft by the force that is applied to the door. 11. The method of claim 10,
Wherein the sliding body is a roller that rolls along the slide guide portion. 12. The method of claim 11,
Wherein the sliding member is a circular seal slidingly contacted with the slide guide. The method according to claim 10 or 11,
Wherein the slide guide is formed of a free-form curved surface that is inclined. The method according to claim 10 or 11,
Wherein the slide guide portion comprises a first inclined surface. 16. The method of claim 15,
Wherein the sliding body comprises a second inclined surface corresponding to the first inclined surface. The method according to claim 10 or 11,
Wherein the sliding body is integrally provided or detachably coupled to the latch or the slider. The method according to claim 10 or 11,
Further comprising a return spring for restoring the slider to a pre-movement state when the slider is compressed when the slider is moved while the force at the time of the section movement is removed, at the rear of the slider. The method according to claim 10 or 11,
Wherein the power transmitting portion is a pressing protrusion capable of pressing the slider when the shaft is moved in the section. 20. The method of claim 19,
The pressing projection is bent at a first point inclined with respect to the longitudinal direction at one point of the shaft, and the inclined upper end is secondarily bent so as to be perpendicular to the longitudinal direction of the shaft, and the lower end of the pressing projection is aligned with the longitudinal direction of the shaft And the door is bent in a triangular shape. The method according to claim 10 or 11,
Wherein the latch transmission unit comprises a return spring for compressing the latch unit when the latch unit is moved during the section movement, and returning the latch unit to a state before the section movement when the force during the section movement is removed. The method according to claim 10 or 11,
Wherein the handle portion comprises a hollow fixing bracket fixed to one surface and a rear surface of the door, and a gripping member having one end inserted into the fixing bracket and coupled to be capable of being pressed and pulled. 23. The method of claim 22,
And a locking device coupled to both ends of the shaft to control the rotation of the shaft is installed in the handle portion. The locking device may be a key bundle into which the key is inserted, or an operation lever. Door opening / closing device. 23. The method of claim 22,
Wherein the slider is slidably coupled to the guide member at one side of the slider, wherein the slider is provided with a guide member crossing the inside of the door and having both ends thereof coupled to the handle. 25. The method of claim 24,
Wherein the guide member is detachably coupled to the handle portion and has a channel shape whose one side is opened along the longitudinal direction, the shaft penetrates the inside of the guide member, and the slider slides inside the guide member Wherein the sliding guide is formed at a free end of the slider, the slide guide being protruded outside the guide member across the bottom surface of the shaft. The method according to claim 10 or 11,
Wherein the handle portion is constituted by a grip portion fixed to one surface of the door and a push member pressably coupled to the center of the grip portion and having one end coupled to the shaft. The method according to claim 10 or 11,
Wherein the handle portion further includes an antibacterial portion in which an antibacterial substance is sprayed when a force during movement of the shaft due to the pushing and pulling action of the handle is applied, wherein the antibacterial substance includes a hand sanitizer and a fragrance Door opening / closing device that features. The method according to claim 10 or 11,
Wherein the door further includes a cover which covers an outer side of the shaft, the slider and the latch transmission part and guides the movement of the latch transmission part, wherein the cover has a through hole through which the shaft passes, Wherein a guide member for guiding the movement of the latch transmission unit is formed on the upper and lower portions of the through hole, and the fixture is bolted to the door at regular intervals along the outer circumference.

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