KR20170074629A

KR20170074629A - Handle device for open and shut

Info

Publication number: KR20170074629A
Application number: KR1020150184134A
Authority: KR
Inventors: 윤규중; 윤지우
Original assignee: 주식회사 공진
Priority date: 2015-12-22
Filing date: 2015-12-22
Publication date: 2017-06-30
Also published as: KR101802408B1

Abstract

The present invention relates to a lock handle device for a door, and more particularly, to a lock handle device for a door, comprising a lock receiving portion formed on a rear surface of a handle, When the handle and the rotation control plate are rotated by the shaft, the first rotation projection formed on the rotation control plate is rapidly rotated to the second guide groove along the guide slope of the first guide groove formed on the bottom surface of the stopper, And the first rotation protrusion is returned along the guide slope of the first guide groove when the door is moved back to its original position so that the handle can be stably inserted into the interior of the case will be.

Description

Technical Field [0001] The present invention relates to a handle device for a door,

The conventional handlebars installed on the switchboard or the control panel are configured such that when a button provided on the lower portion of the body is pressed, the lower end of the knob is released and lifted up by the force of a spring provided on the shaft of the upper portion of the knob, The lower part of the knob is lifted by the principle of the leverage. Also, there is a method of rotating the knob which is held down by 90 ° to the side as shown above. In case of the former case, the latch installed at the rear of the knob is connected to the lever so that when the knob is lifted up, the latch is restrained while restricting the door, and when the knob is pressed again, the latch is raised to restrain the door. In the latter case, the latch and knob are pivoted only in the right direction (counterclockwise), so that when the knob is turned to the right, the latch is also turned to the right so that it is released from the door frame.

However, the conventional handle as described above is difficult to lock or open when the knob is turned sideways because the latch is closely attached to the door frame when opening or closing the door of the switchboard. To avoid this, assembling the latch slightly away from the door frame creates noise when operating the knob or creates a gap between the door and the door frame, which causes problems such as deterioration of appearance and rattling. Especially, in case of the switchboard installed outdoors, if the door is not locked closely to the door frame as described above, water, dust or insects may enter into the switchboard and cause various problems.

Since the latches fixed to the axes of the knobs and knobs are rotated only in one direction of the side, they can only be installed on one side of the control panel or the control panel. If the obstacle or the wall are close to one side of the door, There is a problem that it is not easy. In addition, the conventional handle is not waterproofed from the outside, so if the water enters the inside of the handle, it is easily corroded or short-circuited.

In order to solve such a conventional problem, Patent Document 1 discloses a handle for a switchboard of Patent Registration No. 10-0293030, in which a boss having a stopping jaw is formed on an upper portion thereof, a knob mounting groove is formed on a front surface thereof, A stopper which rotates a section other than the stop jaw 90 ° to the left and right by 90 ° from the rear surface of the boss of the body and a stopper which is engaged with the stopper to rotate left and right by the turning section of the stopper in the boss of the body, A latch which is connected to the rotary shaft to be able to move in the left and right direction and which is capable of being articulated with the rotary shaft and whose bottom surface is urged by the elastic force of the spring in the boss of the body And a knob constrained to the button in the knob installation groove of the body.

The conventional handle has a problem that it is difficult to install the button and the locker at the lower end of the body and the knob can not be lifted when the button is broken due to the external impact.

In the conventional handle, the operation of the button formed on the body and the key bundle provided at the lower end of the knob individually operate, resulting in a problem that the productivity is lowered and the cost of the product is increased.

In many conventional steering knobs, the key is always inserted in the key bundle, so that the knob is lifted up and rotated.

The conventional handle is disadvantageous in that when the knob is rotated, the cam surface comes into contact with both wall surfaces of the body to break the cam surface, and when the latching protrusion of the stopper rotating together with the knob collides with the stop jaw of the boss, The knob can not be controlled when the knob is broken and the knob can not be lowered when the center of the rotary shaft does not coincide in the process of returning to the original position after opening the door by operating the latch by rotating the knob There is a problem that the latching protrusion is broken due to the operation of pushing with the steel material without recognizing it, and there is a problem that the knob is inserted in the state in which the knob is exactly aligned with the inside of the body.

Korean Registered Publication No. 10-0293030

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lock receiving portion for easily mounting a lock member on the rear surface of a handle and to improve the structure of the inner case to be inserted into the lock receiving portion, The cylinder is inserted into the front surface of the inner case so that the latch can be easily separated from the case by the rotation of the rotation protrusion formed at the lower end of the cylinder, And to provide a lock handle device for a door.

When the key is inserted into the cylinder and rotated, the latch can be easily separated from the lock groove of the case by the rotation of the rotation protrusion, so that the key can be separated while slightly lifting up the handle. When the handle is detached from the inside of the case, Is a door handle lock device in which a latch is easily inserted into a lock groove without using a key in order to maintain the state of movement to the front face by the elastic force of a spring and fix the handle to the case.

Another object of the present invention is to prevent the handle shaft, which rotates in the shaft receiving portion of the case, from contacting the wall surface of the shaft receiving portion, minimize the coupling structure of the handle shaft and the cam shaft fixed by the fixing pin, And to provide a lock handle device for a door that allows a door to be opened while the latch moves smoothly when moving to a lower end.

It is still another object of the present invention to provide a method of controlling a rotation control plate of a rotation control plate coupled to a camshaft by forming a locking protrusion on both side surfaces of a bottom surface of a stopper formed at a lower end of a case and forming first and second guide grooves between the locking protrusion and the locking protrusion, The first rotation protrusion is quickly moved from the first guide groove to the second guide groove to release the locked state of the latch, and the guide groove is formed on the side surface of the first and second guide grooves, A lock handle device for a door that can easily insert a handle into a case without adjusting the center point of the cam shaft while the handle is naturally lowered when the first rotation protrusion is located on the guide slope in the process of returning the first guide groove.

It is a further object of the present invention to provide a method of manufacturing a rotary control panel in which a thickness of a first rotation protrusion protruding from both sides of a rotation control plate is formed to be lower than a thickness of a second rotation protrusion and smoothly moved along guide slopes of first and second guide grooves of the stopper, So that it is possible to prevent the door from being damaged.

In order to achieve the above object, a lock handle device for a door according to the present invention is characterized in that a handle shaft formed on a front surface of a handle is coupled to a cam shaft formed inside a case and a hinge shaft, A lock handle device for a door to be operated by a door, comprising: a first cam surface and a second cam surface formed on a circumferential surface of a handle shaft formed at a lower part of a front surface of a handle, The inner case of the lock member is fixed by bolts by inserting the inner case of the lock member into the storage portion and the latch is locked and released in the lock groove of the case while the latch is moved to the front side and the rear side by the operation of the cylinder provided on the inner side of the front side, A stopper is integrally formed on a lower front surface of the case, a stopper is formed on both side surfaces of the bottom surface of the stopper, And the cam shaft inserted into the stopper is fixed by the handle shaft and the fixing pin so that the first cam face of the handle and the second cam face of the handle, The camshaft is moved in the vertical direction and a spring is provided inside the rotation control plate inserted into the circumferential surface of the camshaft to elastically support the rotation control plate and the first and second rotation projections The first rotation projection is inserted into the first guide groove and the second rotation projection is brought into close contact with the engagement projection so as to control the rotation of the handle and a latch provided on the bottom surface of the rotation control plate is engaged with the cam shaft And is rotated together with the handle.

According to the present invention, the thickness of the first rotation protrusions protruding from both sides of the rotation control plate rotated together with the cam shaft is made lower than the second rotation protrusions, so that the first rotation protrusions can be quickly moved along the guide slopes of the first and second guide grooves There is a feature that makes it possible to move.

According to the present invention as described above, the present invention improves the structure in which the cylinder of the lock member is installed on the rear surface of the handle, thereby improving the convenience of the user so that the key, which is coupled to the cylinder, And the camshaft coupled to the handle shaft and the rotation control plate, thereby improving the productivity and reducing the cost of the product.

The present invention is characterized in that a lock receiving portion is formed on a rear surface of a handle to insert an inner case and a bolt is passed through a bolt hole formed in a lock receiving portion and an inner case to facilitate assembly and separation work, A latch is provided at a lower end of the cylinder by a resilient force of a spring to retain a state in which the latch protrudes from the front surface of the cylinder. The latch is easily released from the locking state of the latch. When the handle is fixed to the case, the latch protrudes to the front side by the spring formed on the rear surface of the latch, It is inserted into the lock groove again, so that the lock state of the handle can be easily performed without using the key That there is an effect.

According to the present invention, when the handle is lifted upwards, the camshaft coupled with the handle shaft moves to the lower end to smooth the rotation of the latch tightly attached to the door frame, and to prevent interference with the handle shaft rotating in the shaft- There is an effect of reducing the cost of the product by minimizing the coupling structure and the number of components of the rotation control plate that rotates integrally with the cam shaft and the effect of improving the structure of the pouring portion.

In the process of forming the first and second rotation protrusions on both sides of the rotation control plate and rotating along the circumferential direction of the engagement protrusion formed on the bottom surface of the stopper, the first rotation protrusion is moved from the first guide groove to the second guide groove The thickness of the first rotation projection is made smaller than the thickness of the second rotation projection so that the first rotation projection can be moved quickly and the guide projection face is formed on the side of the first and second guide recesses It is effective.

In the present invention, when the first rotary protrusion located in the second guide groove is positioned on the guide inclined surface of the first guide groove in the process of returning the handle to its original position, the cam shaft rotates The first rotary protrusion of the stopper and the handle is broken by the operation of forcibly lowering the handle in the process of inserting the handle into the case in the absence of the guide slant surface There is an effect of complementing the problem.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an exploded perspective view of a lock handle device of the present invention in an inverted state; Fig.
FIG. 2 is a perspective view of the handle and the lock member of the present invention separated from each other. FIG.
3 is a sectional view of the lock handle device of FIG.
4 is a sectional view of an operating state of the lock handle device of the present invention.

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

1 through 4, the present invention can be applied to a case in which a handle 10 is coupled to an inside of a case 20 and is coupled to a handle shaft 11 of a handle 10, The camshaft 26, the rotation control plate 29 and the latch 30 are rotated together to release the latch 30 from the door frame so as to open the door.

A handle (10) provided inside the case (20) has a handle shaft (11) projecting below the front face

A hole is formed in the handle shaft 11 to insert a fixing pin 14 connected to a cam shaft 26 to be described later and a fixing pin 14 coupled to the handle shaft 11 The first cam surface 12 is horizontally held in a plane on the bottom surface of the case 20 so as to be in close contact with the shaft receiving portion 21 of the case 20 to be described later, And the second cam surface 13 is integrally formed on the front surface of the first cam surface 12 so as to have an inclined surface so that the handle 10 rotates about the fixing pin 14 The first cam surface 12 is shifted from the second cam surface 13 to the second cam surface 13 and held in a state of being in close contact with the shaft receiving portion 21 in the horizontal direction.

A lock receiving portion 15 is formed on a rear surface of the handle 10 so that a lock member 16 to be described later is firmly inserted into the lock receiving portion 15 and bolt holes 15a The locking member 16 fixed to the lock receiving portion 15 with bolts B is formed in the inner surface of the inner case 17 at the rear side thereof with bolts B, Holes 17a can be formed and fixed and separated by the bolts B passing through the bolt holes 15a of the lock receiving portion 15 and the cylinder accommodating portion The cylinder 18 is fixed to the inner case 17 by means of pins or bolts and the key 18 is inserted into the cylinder 18 at an upper portion of the cylinder 18, A keyhole is formed in the bottom surface of the cylinder 18 and a rotation protrusion 18a is projected from the bottom of the cylinder 18, The latch 19 is operated and the latch 19 is formed with a rotation projection 18a so that the rotation projection 18a is inserted inside the upper portion so that the latch 19 is rotated by the rotation of the rotation projection 18a, The handle 19 can be lifted up to the upper side while the latch 19 is fixed to the case 20 while being moved while lifting the handle 19. The spring 19a is embedded in the lower end of the latch 19, The rotation protrusion 18a is moved to the original position so that the latch 19 is maintained in a protruded state and the latch 19 is prevented from being separated from the front surface by the rotation protrusion 18a, The front end portion of the handle 19 is inserted and removed into the lock groove 25a formed in the inside of the case 20 so that the handle 10 is firmly fixed to the case 20, The handle 10 separated into the upper portion of the case 20 is pushed into the case 20 The handle 19 is brought into close contact with the inner wall surface of the case 20 and moves rearward to reach the lock groove 25a so that the handle 10 is automatically locked to the case 20 by the elastic force of the spring 19a .

A case 20 in which the handle shaft 11 of the handle 10 is mounted on the shaft receiving portion 21 is provided with a flange protruding on the peripheral surface so as to be in close contact with the frame of the door, A wall portion of the handle 10 of the handle 10 is accommodated in the housing portion 22 and the wall surface of the handle 10 is sloped down from the top to the bottom portion of the handle housing 11, So that interference does not occur when the cam surface 13 is rotated and also the rear wall surface of the handle shaft 11 where the first cam surface 12 is located is also prevented from generating interference, A stopper 22 is protruded from the bottom of the formed case 20 and protrudes from both side surfaces of the bottom surface of the stopper 22 so as to protrude from the stopper 23 and the stopper 23 The first guide groove 24 is formed in the latching jaw 23 located on the rear surface of the stopper 22 and the second guide groove 24a The second guide grooves 24a are formed at predetermined intervals on the engaging protrusions 23 located on the front surface of the stopper 22. The guide grooves 24a are formed on the inner wall surfaces of the first and second guide grooves 24, The first rotation protrusion 29a inserted into the first guide groove 24 to be described later is moved to the upper side of the guide slope 24b so that the guide slope 24b located in the second guide groove 25 24b so that the engaging protrusions 23 and the engaging protrusions 23 located on the opposite sides of the first and second guide grooves 24, And a locking seat 25 is formed on the upper rear surface of the case 20 so that the lock receiving portion 15 of the handle 10 can be rotated And a lock groove 25a is formed on a front wall surface of the lock receiving portion 25 so that the latch 19 is locked It is released.

The handle shaft 11 provided in the shaft receiving portion 21 and the camshaft 26 engaged with the holding pin 14 are vertically protruded so that a hole is formed in the upper portion to insert the holding pin 14 therein An upper portion of the camshaft 26 is formed in a semicircular shape and rotates within the handle shaft 11. The circumferential surface of the camshaft 26 is inserted into the stopper 22, A packing groove 26a is formed in the circumferential surface of the camshaft 26 so that the packing 27 is inserted into the circumferential surface of the camshaft 26,

A snap ring groove 26b is formed at the lower end of the packing 27 so that a snap ring 27a is provided and the upper end of the snap ring 27a The support plate 28 is installed to support the spring 28a provided on the upper portion of the support plate 28 so that the support plate 28 and the camshaft 26 can be moved to the lower end portion by the elastic force of the spring 28a, A rotation control plate 29 is provided at the lower end of the snap ring 27a so that the circumferential surface of the support plate 28 closely contacts the inside of the rotation control plate 29. Inside the rotation control plate 29, And the camshaft 26 and the rotation control plate 29 can rotate together. On both sides of the rotation control plate 29 located on the circumference of the rotation control plate 29, The protrusions 29a and 29b are protruded and the first rotation protrusion 29a is formed to be lower than the thickness of the second rotation protrusion 29b The latch 30 and the washer 31 are inserted into the bottom surface of the rotation control plate 29 so that the bolt 30 and the washer 31 are inserted into the second guide groove 25 from the first guide groove 24 of the stopper 22, The position of the second cam face 13 on the first cam face 12 is changed and the position of the second cam face 13 on the first cam face 12 is changed when the handle 10 is lifted up integrally with the cam shaft 26, Since the height of the second cam face 13 is lower than the height of the second cam face 13, a pushing force of the spring 27a is applied by a height difference so that the latch 30, which is in close contact with the door frame, moves to the lower end, So that the latch 30 can rotate together to open the door.

The lock handle device for a door according to the present invention configured as described above is operated as follows.

When the key is inserted into the keyhole of the cylinder and the key is rotated, when the latch 19 is moved to the rear by the rotational movement of the rotation projection 18a and the latch 19 is partially removed from the lock groove 25a, And the handle 10 can be easily separated from the case 20 and the separated key can be easily removed from the case 20 even if an operation for fixing the handle 10 to the case 20 is performed, The latch 19 is moved to the rear side when it comes close to the lock groove 25a, and the latch 19 can maintain the locked state by the elastic force of the spring 19a.

The latch 19 separated from the lock groove 25a maintains a state of protruding to the front surface due to the elastic force of the spring 19a while lifting the handle 10 upward, The position of the handle 10 is changed from the first cam face 12 to the second cam face 13 as shown in FIG. 4 while the handle shaft 11 is rotated around the fixed pin 14, The rotation control plate 29 and the camshaft 26 by the spring force of the spring 27a pushing the spring 27a to the lower end by the difference of the height changed from the first cam face 12 to the second cam face 13, When the handle 10 is rotated to the left, the rotation of the first rotary protrusion (not shown) located in the first guide groove 24 29a quickly move along the guide inclined surface 24b and the first rotation projection 29a is positioned on the guide inclined surface 24b of the second guide groove 24a The first rotary protrusion 29a can be inserted into the second guide groove 24a naturally to open the door even if the user does not apply excessive force to the lower end of the handle 10, 29b move from the locking jaw 23 located on the front surface of the stopper 22 to the locking jaw 23 located on the rear side to control the rotation of the handle 10 so as not to rotate the handle 10 any longer.

Conversely, when the handle 10 is rotated to close the door, when the first rotation protrusion 29a moves from the second guide groove 24a to the first guide groove 24, Since the user can recognize that the handle 10 is naturally moved to the lower end by the angle of the guide slope 24b when the first rotation projection 29a reaches the second rotation projection 24b, The latch 19 can be moved in the backward direction while coming into close contact with the inner wall surface of the lock receiving portion 25, The latch 19 is protruded to the front side by the elastic force of the spring 19a so that the handle 10 is firmly fixed to the case 20.

The first rotary protrusion 29a is moved along the guide slope 24b in a state of vertically rising along the first guide groove 24 and then the second guide groove 24a The first rotation protrusion 29a is moved from the second guide groove 24a to the first guide groove 24 and the guide slope of the first guide groove 24 24b, the handle 10 is naturally moved to the lower end, so that the position can be easily selected without the user having to individually manipulate the center point for returning the camshaft 26 to the original position, When the guide slope 24b does not exist in the course of the rotation of the first and second guide grooves 24 and 24a, the user operates the handle 10 forcibly, And in particular, the handle 10 is forcibly pressed Li is characterized in capable of preventing the accident that the part of the stopper plate 22. In the process, a first rotary projections (29a) is broken in advance.

The above-described lock handle device for a door according to the present invention is not limited to the above-described embodiment, and various modifications and changes may be made without departing from the spirit and scope of the present invention, There is a technological spirit to the extent that anyone can make various changes.

10: handle 11: handle shaft
12: first cam face 13: second cam face
14: Fixing pin 15: Locking compartment
16: Locking member 17: Inner case
17a: cylinder accommodating portion 18: cylinder
18a: rotation projection 19: latch
19a: Spring 20: Case
21: shaft receiving portion 22: stopper
23: engaging jaw 24: first guide groove
24a: second guide groove 25: locking seat portion
25a: locking groove 26: cam shaft
27: Packing 27a: Snap ring
28: Support plate 28a: Spring
29: rotation control plate 29a: first rotation projection
29b: second rotation projection 30: latch
31: washer 32: bolt

Claims

A lock handle device for a door, comprising: a handle shaft formed on a front surface of a handle coupled to a cam shaft formed in a case and a hinge shaft to actuate a latch coupled to the cam shaft,
The first cam face 12 and the second cam face 13 are formed on the circumferential surface of the handle shaft 11 formed at the lower front of the handle 10 and installed in the shaft housing portion 22 of the case 20 The inner case 17 of the lock member 16 is inserted into the lock receiving portion 15 formed inside the rear surface of the handle 10 and fixed with the bolt B, The latch 19 is locked and unlocked in the locking groove 25a of the case 20 while the latch 19 is moved to the front and rear sides by the operation of the installed cylinder 18 to fix the handle 10 to the case 20, A stopper 22 is integrally formed on the bottom of the front surface of the stopper 20 and a stopping jaw 23 is formed on both side surfaces of the bottom surface of the stopper 22. The stopping jaw 23 and the stopping jaw 23 And the cam shaft 26 inserted into the stopper 22 is fixed by the handle shaft 11 and the fixing pin 14 so that the first and second guide grooves 24, (10) about the handle (14) Of the rotation control plate 29 inserted into the circumferential surface of the camshaft 26 when the camshaft 26 rotates from the first cam face 12 to the second cam face 13 in the vertical direction, A spring 28a is provided to elastically support the rotation control plate 29 and the first and second rotation protrusions 29a and 29b are protruded on the circumferential surface of the rotation control plate 29 so that the first rotation protrusion 29a Is attached to the first guide groove 24 and the second rotation projection 29b is in close contact with the engagement protuberance 23 to control the rotation of the handle 10 and is installed on the bottom surface of the rotation control plate 29 Wherein the latch (30) is fixed to the camshaft (26) by the bolt (32) and rotated together with the handle (10).

The handle shaft according to claim 1, wherein a handle shaft (11) protrudes below the front surface of the handle (10), and a hole is formed in the handle shaft (11) A first cam face 12 is horizontally held on a lower end of a lower face of the first cam face 12 on which a fixing pin 14 is inserted and a second cam face 13 Is formed on the inner side of the lock receiving portion 15 formed on the rear surface of the handle 10 so as to be in close contact with the bottom surface of the shaft receiving portion 22 of the case 20 by the rotation of the handle 10 A bolt hole 15a is formed and fixed by a lock member 16 and a bolt B while a bolt hole 17a is formed in an inner side of a rear surface of the inner case 17 of the lock member 16, And a cylinder 18 is coupled to the inside of the inner case 17 by forming a cylinder accommodating portion 17a inside the front surface of the inner case 17. The cylinder 1 is fixed by a bolt hole 15a and a bolt B, 8 is inserted into the upper portion of the latch 19 so that the latch 19 is moved to the rear side by the rotation of the rotary projection 18a and the inside of the latch 19 The tip of the latch 19 is protruded to the front surface of the inner case 17 by the elastic force of the spring 19a and the cylinder 18 is fixed to the inner case 17 with the bolt B And the lock handle device for a door.

2. The apparatus according to claim 1, wherein the case (20) has a shaft receiving portion (22) formed on an upper front surface thereof to receive a handle shaft (11) of the handle (10), and a wall surface of the shaft receiving portion A stopper 22 is protruded from the bottom of the front surface of the case 20 so that the second cam face 13 of the handle shaft 11 does not interfere with rotation, The first and second guide grooves 24 and 24a are formed between the engaging protrusions 23 and the engaging protrusions 23 and the first and second guide grooves 24 and 24 are formed between the engaging protrusions 23 and 23, The guide slope 24b is formed on the inner wall surface of the first guide groove 24 and the second guide groove 25 so that the first rotation protrusion 29a inserted in the first guide groove 24 can be quickly moved to the second guide groove 25 And a lock seat 25 is provided on the upper rear surface of the case 20 so that the second rotation protrusion 29b is rotatable in the opposite direction to the first and second guide grooves 24 and 24a, Type And a lock groove 25a is formed on the front wall of the lock receiving portion 25 so that the latch 19 can be locked and unlocked. So that the door can be released.

The camshaft (26) according to claim 1, wherein the camshaft (26) is vertically protruded to have a hole for inserting the fixing pin (14) A packing groove 26a is formed to insert water into the stopper 22 so that water is prevented from flowing into the stopper 22. A snap ring 27a and a rotation control plate 29 are inserted into the lower end of the packing 27, A support plate 28 and a spring 28a are provided on the upper portion of the snap ring 27a to elastically support the camshaft 26 and the rotation control plate 29, Wherein a latch (30) and a washer (31) are inserted into the bottom surface of the camshaft (29) and are integrally fixed to the camshaft (26) by bolts (32).

2. The apparatus according to claim 1, wherein the rotation control plate (29) has a rectangular hole for fixing the cam shaft (26) therein, and first and second rotation projections (29a The first rotation protrusion 29a is formed to be lower than the thickness of the second rotation protrusion 29b so that the first guide groove 24 of the stopper 22 is inserted into the second guide groove 25 So that the door can be quickly moved.