KR102450356B1 - a safety door handle - Google Patents

Abstract

An objective of the present invention is to provide a safety door handle capable of preventing a door from being suddenly closed in a safety mode even when the door is open, since the handle provided on the door can selectively switch to one of a door opening and closing mode and the safety mode. Provided is the safety door handle including: a body part fixed to at least one side of the door to interlock with a latch assembly provided on a door to form a rotation axis and having a receiving groove therein; and a handle part provided with a guide rail configured to be coupled so that the same can selectively slide along the receiving groove to be in any one mode of a door opening and closing mode in which one end portion is fixed to the body part and a safety mode in which the other end portion is fixed to the body part and the one end portion protrudes outward from the front end of the door to prevent the door from being closed, and to be coupled to the receiving groove and in contact during the sliding movement process.

Description

a safety door handle

The present invention relates to a safety door handle, and to a safety door handle for preventing a safety accident by forming a space set between a door and a door frame.

In general, a door provides a function of forming an independent space by dividing a space from another space using steel or wood.

A steel door is usually placed in an external space with the purpose of crime prevention and an entrance door, such as a front door, and a wooden door is generally placed between a space and another space to divide an indoor space.

Here, the wooden door has a function of selectively shielding between the doorpost and the door frame combined with the doorpost between the walls of the indoor space, and a sliding door or a sliding door is typically used.

Among them, safety accidents frequently occur between the door and the doorpost at the moment the door is opened or closed in the case of the sliding door, which is mainly used indoors.

Therefore, in order to prevent such a safety accident for children or infants, an elastic material such as a sponge is inserted into the front end of the door, or a door holder that fundamentally blocks the closing of the door is mounted.

However, such a door holder is troublesome for a user to insert and remove only when necessary, and also has a problem in that it is stored and installed separately when removed.

Korean Utility Model Publication No. 20-0490563 (2019.11.25)

The present invention is intended to solve such a problem, and more specifically, the handle provided on the door can be selectively switched to one of the door opening/closing mode or the safe mode, so that the door is suddenly opened in the safe mode even when the door is opened. An object of the present invention is to provide a safety door handle that can be prevented from being closed.

The present invention for performing the above object is fixed to at least one side of the door so as to interlock with a latch assembly provided on the door to form a rotating shaft, the body portion having a receiving groove therein; and a door opening/closing mode in which one end is fixed to the body, and a safety mode in which the other end is fixed to the body and the one end protrudes outward from the front end of the door to prevent the door from being closed. a handle portion provided with a guide rail coupled to the receiving groove so as to be selectively slidably movable along the receiving groove so as to be coupled to the receiving groove and contacting during the sliding movement process; It provides a safety door handle comprising a.

The handle portion is pressed during the door opening and closing process, the main frame having the guide rail on the rear surface along the longitudinal direction, and disposed at both ends in the longitudinal direction of the main frame to enter one of the door opening and closing mode and the safety mode. It may include a side frame that is pressed when switched, and a stopper protruding to face each other in both rear side regions of the main frame adjacent to the side frame and the guide rail.

The side frame may be provided with a curved surface or an inclined surface from the main frame.

The guide rail includes an extended portion protruding from the rear surface of the main frame, and a protrusion provided with a fastening region in which the width of the central region is partially reduced, protruding parallel to the main frame from both sides along the width direction at the end of the extension portion. may include.

In the fastening region, an inclination or curvature formed along a first direction among the longitudinal directions of the main frame may be formed more gently than an inclination or curvature formed along a direction opposite to the first direction.

The body part includes a support part provided inside the receiving groove, the support part includes a rail groove into which the guide rail is slidably inserted, and a rail jaw provided to surround the protrusion of the guide rail at an upper portion of the rail groove; It may include a fixing groove formed so that at least a part of the stopper is inserted under the rail groove.

The rail jaws protrude in a symmetrical shape to face each other from the support in the upper portion of the rail groove, and the distance between the other end portions of the pair of rail jaws facing each other is greater than the distance between the other end portions. can

The stopper may be formed to have a higher height or a wider width than an initial region in which insertion into the fixing groove is started.

and a protrusion provided in a through hole formed in the fixing groove, and a recess provided on the guide rail and into which the protrusion is selectively inserted, wherein the protrusion is an interference member protruding from the fixing groove to be at least partially inserted into the recess. and a pole having one end coupled to the interference member and passing through the through hole, a washer coupled to the pole adjacent to the interference member in the through hole, and the washer and the inside of the through hole around the pole It includes an elastic body disposed between the inner jaw formed on the pole, and a gripping member coupled to the other end of the pole, and when the gripping member is pulled out of the body, the interference member is spaced apart from the recessed portion and the mode change of the handle portion is it can be possible

a protrusion provided in a through hole formed in the fixing groove, and a recess provided on the guide rail and into which the protrusion is selectively inserted, wherein the protrusion includes a ball protruding to be at least partially inserted into the recess; A pole to which an end is coupled, a pole passing through a through hole formed in the fixing groove, an elastic body elastically supporting the ball and the pole in the through hole, and a nut coupled to the other end of the pole, wherein the nut is coupled to the other end of the pole; When changing the mode of the handle, the ball may be elastically spaced from the recess.

The present invention for performing the above object is fixed to at least one side of the door so as to interlock with a latch assembly provided on the door to form a rotating shaft, the body portion having a receiving groove therein; and a door opening/closing mode in which one end is fixed to the body, and a safety mode in which the other end is fixed to the body and the one end protrudes outward from the front end of the door to prevent the door from being closed. a handle portion provided with a guide rail coupled to the receiving groove so as to be selectively slidably movable along the receiving groove so as to be coupled to the receiving groove and contacting during the sliding movement process; It provides a safety door handle comprising a.

The handle portion is pressed during the door opening and closing process, the main frame having the guide rail on the rear surface along the longitudinal direction, and disposed at both ends in the longitudinal direction of the main frame to enter one of the door opening and closing mode and the safety mode. It may include a side frame that is pressed when switched, and a stopper protruding to face each other in both rear side regions of the main frame adjacent to the side frame and the guide rail.

The side frame may be provided with a curved surface or an inclined surface from the main frame.

The guide rail includes an extended portion protruding from the rear surface of the main frame, and a protrusion provided with a fastening region in which the width of the central region is partially reduced, protruding parallel to the main frame from both sides along the width direction at the end of the extension portion. may include.

In the fastening region, an inclination or curvature formed along a first direction among the longitudinal directions of the main frame may be formed more gently than an inclination or curvature formed along a direction opposite to the first direction.

The body part includes a support part provided inside the receiving groove, the support part includes a rail groove into which the guide rail is slidably inserted, and a rail jaw provided to surround the protrusion of the guide rail at an upper portion of the rail groove; It may include a fixing groove formed so that at least a part of the stopper is inserted under the rail groove.

The rail jaws protrude in a symmetrical shape to face each other from the support in the upper portion of the rail groove, and the distance between the other end portions of the pair of rail jaws facing each other is greater than the distance between the other end portions. can

The stopper may be formed to have a higher height or a wider width than an initial region in which insertion into the fixing groove is started.

and a protrusion provided in a through hole formed in the fixing groove, and a recess provided on the guide rail and into which the protrusion is selectively inserted, wherein the protrusion is an interference member protruding from the fixing groove to be at least partially inserted into the recess. and a pole having one end coupled to the interference member and passing through the through hole, a washer coupled to the pole adjacent to the interference member in the through hole, and the washer and the inside of the through hole around the pole It includes an elastic body disposed between the inner jaw formed on the pole, and a gripping member coupled to the other end of the pole, and when the gripping member is pulled out of the body, the interference member is spaced apart from the recessed portion and the mode change of the handle portion is it can be possible

a protrusion provided in a through hole formed in the fixing groove, and a recess provided on the guide rail and into which the protrusion is selectively inserted, wherein the protrusion includes a ball protruding to be at least partially inserted into the recess; A pole to which an end is coupled, a pole passing through a through hole formed in the fixing groove, an elastic body elastically supporting the ball and the pole in the through hole, and a nut coupled to the other end of the pole, wherein the nut is coupled to the other end of the pole; When changing the mode of the handle, the ball may be elastically spaced from the recess.

The summary set forth above as well as the detailed description of the preferred embodiments of the present application set forth below may be better understood when read in conjunction with the accompanying drawings. For the purpose of illustrating the invention, there are shown in the drawings preferred embodiments. It should be understood, however, that the present application is not limited to the precise arrangements and instrumentalities shown.
1 is a perspective view illustrating a door opening/closing mode of a safety door handle according to an embodiment of the present invention.
FIG. 2 is a perspective view illustrating a state in which the safety door handle shown in FIG. 1 is switched to a safety mode;
Fig. 3 is an exploded perspective view showing the safety door handle shown in Fig. 1 in an exploded view;
Fig. 4A is a side sectional view showing a section AA' of the safety door handle shown in Fig. 1 and a partially enlarged view of a protrusion;
Fig. 4B is a side cross-sectional view and a partially enlarged view of a protrusion showing another embodiment of the safety door handle shown in Fig. 4A;
FIG. 5 is a plan view showing the upper surface of the body of the safety door handle shown in FIG. 3 .
FIG. 6 is an enlarged perspective view of the body part of the safety door handle shown in FIG. 3 .
Fig. 7 is a rear perspective view showing the handle portion of the safety door handle shown in Fig. 3 from the bottom;
8 is a reference view illustrating a process in which the body portion and the handle portion shown in FIG. 3 are coupled.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated and described in the drawings.

However, this is not intended to limit the present invention to specific embodiments, and should be understood to include all modifications, equivalents and substitutes included in the spirit and scope of the present invention.

Terms including an ordinal number such as first, second, etc. may be used to describe various elements, but the elements are not limited by the terms.

The above terms are used only for the purpose of distinguishing one component from another.

For example, without departing from the scope of the present invention, the second component may be referred to as the first component, and similarly, the first component may also be referred to as the second component.

and/or includes a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but it is understood that other components may exist in between. it should be

On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

The singular expression includes the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, but one or more other features It is to be understood that this does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the embodiment will be described in detail with reference to the accompanying drawings, but the same or corresponding components are given the same reference numerals regardless of the reference numerals, and the overlapping description thereof will be omitted.

1 is a perspective view showing a door opening/closing mode of a safety door handle according to an embodiment of the present invention, FIG. 2 is a perspective view showing a state in which the safety door handle shown in FIG. 1 is switched to a safety mode, FIG. 3 is FIG. It is an exploded perspective view showing the safety door handle shown in 1 disassembled.

1 to 3 , the safety door handle 100 according to the embodiment of the present invention includes a body portion 110 and a handle portion 120 .

The safety door handle 100 may selectively switch to the door opening/closing mode and the safety mode according to the position where the handle 120 is slid from the body 110 .

Since the safety door handle 100 can be installed interchangeably at a position where the existing door handle is installed on the door 10, replacement and construction are easy and cost is reduced.

Here, the door opening/closing mode is a method of opening a general door. As shown in FIG. 1 , when the general door 10 is opened, the handle unit 120 is turned to release the interference between the latch assembly and the doorpost (Jamb, 20). indicates the status.

In addition, the safe mode indicates a state in which the door 10 is not closed because the handle 120 is slid to protrude more outward than the front end of the door 10 as shown in FIG. 2 . In the safe mode, since the door is not closed before the handle unit 120 is restored to the opposite side, it is possible to prevent a safety accident from occurring while the door 10 is suddenly closed by an external force.

Although not shown in the drawings, a vibration-proof member (not shown) may be provided at a portion where the handle unit 120 and the doorpost 20 or the strike plate 30 contact each other to alleviate noise and impact.

Referring to FIG. 3 , the safety door handle 100 shows a structure (eg, a door handle on the living room side in the case of a visit) disposed in an outer direction of the indoor door 10 . Of course, a safety door handle 100 or a general door handle is provided inside the door 10 as well, and the handles on both sides may be coupled to each other to interlock with each other centering on a latch assembly (not shown).

The body part 110 is inserted into a mounting plate 11 fixed to the door 10 and fixed on the door 10 . The body part 110 may be rotated using a spindle that interlocks with the reciprocating motion of the latch in the latch assembly as a rotation axis. The latch assembly is a device that restricts the opening/closing operation between the door 10 and the door post 20 while the latch protrudes or is inserted on the front end of the door 10, and a detailed description thereof will be omitted since it is a known technique.

The body part 110 has a receiving groove 111 formed therein so that at least a part of the handle part 120 can be inserted thereinto. In the receiving groove 111, the handle part 120 is coupled to be slidably movable.

The body part 110 guides the sliding movement of the handle part 120 in the door opening/closing mode or the safety mode inside the receiving groove 111, and also the body part 110 around the rotating shaft 112 in the door opening/closing mode. It can be supported so that rotational force is transmitted from the handle part 120 to the body part 110 even when the is rotated.

Fig. 4A is a side cross-sectional view and a partially enlarged view of a protrusion of the safety door handle shown in Fig. 1 , and Fig. 4B is a side cross-sectional view showing another embodiment from the safety door handle shown in Fig. 4A and a portion of the protrusion; It is an enlarged view, and FIG. 5 is a plan view showing the upper surface of the body part of the safety door handle shown in FIG. 3 , FIG. 6 is an enlarged perspective view showing the body part of the safety door handle shown in FIG. 3 , and FIG. 7 is shown in FIG. It is a rear perspective view showing the handle part of the shown safety door handle from below.

3 to 7 , the handle unit 120 includes a main frame 121 , a side frame 122 , and a stopper 123 .

The main frame 121 forms the basic shape of the handle part 120 , and torque is generated while the door 10 is gripped and pressed by the user in the process of opening and closing the door 10 . A guide rail 130 is provided on the rear surface of the main frame 120 in the longitudinal direction of the main frame 121 .

The side frames 122 are respectively disposed at both ends of the main frame 121 . The side frame 122 may be a region that is pressed by the user when it is switched to any one of the door opening/closing mode and the safety mode.

The side frame 122 may be formed as an inclined surface or a curved surface extending from the main frame 121 . The overall shape of the body part 110 to be described later is formed in a circular or oval cross-section, and the side frame 122 is preferably formed in a curved surface corresponding thereto.

The guide rail 130 provides a function of guiding and supporting the sliding movement of the handle portion 120 while substantially in contact between the body portion 110 and the main frame 121 . Of course, the back and side surfaces of the main frame 121 may also contact the body portion 110 .

The guide rail 130 includes an extension 131 and a protrusion 132 .

The extension part 131 has a predetermined height to connect the side frames 122 on both sides facing each other in a pillar shape protruding from the rear surface of the main frame 121 . The extension part 131 separates the protrusion part 132 from the rear surface of the main frame 121 by a predetermined distance. The extension part 131 is disposed in a direction perpendicular to the center of the rear surface of the main frame 121 along the longitudinal direction of the main frame 121 .

The protrusion 132 is bent back to both sides in the orthogonal direction at the end of the extension 131 to extend integrally. That is, the protrusion 132 is disposed to face the main frame 121 and has a smaller width than the main frame 121 . Accordingly, the guide rail 130 may have a cross section of an approximately inverted “T” shape.

In the central region of the protrusion 132 , a fastening region 133 having a partially reduced width compared to the rest of the region is provided. In the fastening region 133 , a part of the body 110 (refer to FIG. 5 , rail sill 115 ) is guided through the fastening region 133 in the process in which the body part 110 and the handle part 120 are coupled. It is a part coupled to the rail 130 . The fastening area 133 is formed like a single groove while the end of the protrusion 132 on the guide rail 130 decreases in a curved shape toward the extension 131 . The fastening region 133 is formed such that the protrusions 132 bent in both directions about the extension 131 have a mutually symmetrical shape and the width is reduced in some regions. At this time, the fastening area 133 is formed of a curved surface that is gradually reduced in width at one side of the guide rail 130 and is relatively rapidly increased in width at the other side. Accordingly, the curvature or inclination angle θ1 of one side of the fastening region 133 is formed to be smaller than the curvature or inclination angle θ2 of the other side. In this embodiment, as in FIG. 7 , the inclination angle will be described as a reference.

The stopper 123 is provided to protrude from the rear surface of the main frame 121 so that the side frame 122 and the guide rail 130 are adjacent to each other. The stopper 123 may have a structure protruding from the inner circumferential surface of the side frame 122 , and may be disposed to be in contact with both upper surfaces of both ends of the guide rail 130 and the inner circumferential surface of the side frame 122 . In this embodiment, the latter structure will be described as an example.

Since the stoppers 123 are respectively disposed inside the side frames 122 , they may be symmetrically disposed to face each other.

The body part 110 is provided with a receiving groove 111 to which the handle part 120 is coupled, and a support part 113 is provided inside the receiving groove 111 .

In the support part 113 , a receiving groove 111 is formed as the upper part and the side part of the body part 110 are partially cut off, and an area of the body part 110 except for the receiving groove 111 may become the support part 113 . . That is, the support portion 113 may correspond to a region remaining after processing the receiving groove 111 in the body portion 110 .

The support part 113 includes a rail groove 114 , a rail jaw 115 , and a fixing groove 116 .

The rail groove 114 is an area in which the guide rail 130 is slidably coupled therein. That is, the sliding movement may be guided while the protrusion 132 is in contact on the rail groove 114 .

The rail jaw 115 protrudes from the upper portion of the rail groove 114 to surround a portion of the protrusion 132 of the guide rail 130 . The rail jaws 115 protrude in a direction opposite to each other at the uppermost end of the support part 113 around the rail groove 114 . A pair of rail jaws 115 is provided in a symmetrical shape to face each other, and the distance between each other may be different in some areas.

That is, the gap d2 between the other ends of the rail sill 115 may be larger than the gap d1 between one end of the rail sill 115 . Here, the other end with a larger distance between the rail sills 115 is referred to as an 'insertion region' hereinafter, and the insertion region 115a needs a description related to the fastening region 133, and thus will be described separately.

The interval between one end of the rail sill 115 may be wider than the width of the fixing groove 116 .

The support 113 may be manufactured, for example, in a state in which the accommodating groove 111 is first processed, the fixing groove 116 is processed, and then the rail ridge 115 is protruded while processing the rail groove 114 .

The fixing groove 116 limits the sliding movement distance of the handle part 120 while the stopper 123 is inserted.

The stopper 123 described above may be formed to have a higher height or a wider width than the entry region 123a, where insertion into the fixing groove 116 is started, of the terminal region 123b in which insertion into the fixing groove 116 is completed. have. That is, in the entry area 123a where the stopper 123 is inserted into the fixing groove 116 , the height or width is formed to be small to facilitate the entry and exit of the stopper 123 , and the stopper 123 is inserted into the fixing groove 116 . In the completed terminal region 123b, the height or width is formed large so that the frictional force for entry and exit of the stopper 123 is increased inside the fixing groove 116 and the position is fixed according to the mode change of the handle part 120 reliably. it is preferable

Although not shown in the drawings, the outer circumferential surface of the stopper 123 or the inner circumferential surface of the fixing groove 116 is made of rubber, silicone or synthetic resin material so that the frictional force between the stopper and the fixing groove is reliably transmitted at the time when the mode conversion is completed between them. A friction pad may be provided.

In addition, between the upper surface of the protrusion 132 of the guide rail 130 and the inner circumferential surface of the fixing groove 116 facing it, a protrusion is formed on one of the protrusions and a recess is formed on the other, so that the position fixation according to the mode change is more difficult. can be done for sure.

For example, as shown in Figure 4a, in the first embodiment according to the structure of the protrusion and the recess, a recess 125 is provided on the rear surface of the protrusion 132 facing the bottom of the fixing groove 116, and the corresponding fixing groove ( A protrusion 117 may be provided on the inner circumferential surface of the 116 . Here, the protrusion 117 includes an interference member 117a having a rectangular columnar shape, a pole 117b, an elastic body 117c, a gripping member 117d, and a washer 117e. In addition, the lower surface of the fixing groove 116 includes a through hole 116a penetrating the body 110 and an inner jaw 116b.

First, the protrusion 117 consists of an interference member 117a and a pawl 117b as one configuration. An elastic body 117c is coupled around the pole 117b, and the elastic body 117c is disposed so that one end interferes with the rear surface of the washer 117e and the other end interferes with the inner jaw 116b. Therefore, since the elastic body 117c provides an elastic force with respect to the inner jaw 116b, the interference member 117a and the pole 117b are arranged to be elastically pressed in the direction of the recess 125 . A gripping member 117d is coupled to the other end of the pawl 117b , wherein the gripping member 117d is disposed outside the body 110 and further protrudes from the body 110 . Accordingly, when the gripping member 117d is pulled away from the body 110 in a state in which the interference member 117a and the pole 117b are coupled, the interference member 117a and the pole 117b simultaneously descend while the recess ( 125) can be released.

Accordingly, interference with the recess 225 is released only when the interference member 117a pulls the gripping member 117d, and the interference with the recess 225 is maintained in a state in which the interference member 117a is not pulled.

The interference member 117a is disposed to protrude from the center of the bottom surface of the fixing groove 116, and the recess 125 is positioned to face the interference member 117a in a state in which the stopper 123 is completely inserted into the fixing groove 116. can be arranged to correspond. Therefore, when any one of the stoppers 123 of the both side stoppers 123 of the handle part 120 is inserted into the fixing groove 116, the recessed part 125 and the interference member 117a are fastened to their coupling state. By providing a friction force to the door, any one of the door opening/closing mode and the safety mode can be completely maintained.

In addition, FIG. 4B is a second embodiment different from FIG. 4A , and a recess 125 is provided on the rear surface of the protrusion 132 facing the bottom of the fixing groove 116 , and the corresponding fixing groove 116 has an inner circumferential surface. The protrusion 217 may be provided. Here, the protrusion 217 includes a ball bearing-shaped ball 217a, a pole 217b, an elastic body 217c, and a nut 217d. In addition, the lower surface of the fixing groove 116 includes a through hole 116a penetrating the body 110 and an inner jaw 116b.

First, the protrusion 217 has a ball 217a and a pole 217b in one configuration, and the ball 217a may be coupled to enable rolling motion at one end of the pole 217b. An elastic body 217c is coupled around the pole 217b, and the elastic body 217c is disposed so that one end interferes with the ball 217a and the other end interferes with the inner jaw 116b. Therefore, since the elastic body 217c provides an elastic force with respect to the inner jaw 116b, the ball 217a and the pole 217b are arranged to be elastically pressed in the direction of the recess 125 . A nut 217d is coupled to the other end of the pole 217b, wherein the nut 217d is disposed outside the body portion 110 . Accordingly, when the nut 217d is pulled away from the body 110 in a state in which the ball 217a and the pole 217b are coupled, the ball 217a and the pole 217b simultaneously descend while the nut 217d is connected to the recess 125. Interference can be released.

The ball 217a may be arranged to be in rolling contact with the recess 125, and may be selectively interfered so that the interference with the recess 225 is released only by pulling the nut 217d without rolling contact. In other words, when the ball 217a and the recess 125 are in rolling contact, when the handle 120 is pushed to change the mode, the ball 217a naturally descends and the interference with the recess 125 is released, the ball 217a ) selectively interferes with the recess 125 , the ball 217a is spaced apart from the recess 125 only by pulling the nut 217d downward to release the interference.

The ball 217a is centered on the bottom surface of the fixing groove 116, and the recess 125 is disposed to correspond to a position facing the ball 217a in a state where the stopper 123 is completely inserted into the fixing groove 116. can be Therefore, when any one of the stoppers 123 of the both side stoppers 123 of the handle part 120 is inserted into the fixing groove 116, the concave part 125 and the ball 217a are fastened to their combined state. By providing frictional force, any one of the door opening/closing mode and the safety mode may be completely maintained.

Although not shown in the drawings, the structure and position of the protrusion and the recess are not limited thereto, and may be disposed on the center of the bottom surface of the fixing groove and the upper surface of both ends of the guide rail. Of course, the structure of the protrusion and the recess may be located between the inner side of the body and the side of the main frame in the receiving groove. Hereinafter, it will be described based on the first embodiment according to the structure of the protrusion and the main part. Of course, it is also applicable to the second embodiment of the protrusion and the recess.

8 is a reference view illustrating a process in which the body portion and the handle portion shown in FIG. 3 are coupled.

8A is a cross-sectional view illustrating a state in which an insertion region of a body portion and a fastening region of a handle portion face each other but are in contact with each other in an inclined manner.

Referring to FIG. 8A , the handle part 120 is coupled with the body part 110 at a predetermined inclination angle. If the body part 110 and the handle part 120 are not coupled in this inclined state, the coupling cannot be made.

The insertion region 115a formed at the other end of the rail sill 115 has a rail groove 114 in the insertion region 115a in a plan view, as shown in FIG. ) may be partially exposed.

Accordingly, the coupling region 133 of the guide rail starts to be coupled through the insertion region 115a.

8B is a reference view illustrating a state in which coupling of the insertion region and the fastening region is completed.

As shown in FIG. 8A , when the insertion region 115a enters the portion with a large inclination angle of the fastening region 133 , and then the handle 120 is completely coupled to the receiving groove 111 , the protrusion 132 and the rail jaw The combination of (115) is completed.

8C is a reference view showing a state in which the guide rail is completely coupled to the rail groove.

Figure 8c shows a state in which the handle portion 120 is moved in the opposite direction in Figure 8b. That is, when the handle part 120 moves while maintaining the set inclination angle with respect to the body part 110 , the handle part 120 can be detached, but the handle part 120 on the body part 110 along the horizontal direction. Their separation is prevented when moving in parallel. Although not shown in the drawings, a separate configuration may be coupled to the fastening region 133 to prevent the handle portion from being fundamentally separated from the body portion 110 . In this case, a separate component coupled to the fastening region 133 may be welded or may be a structure fastened in the shape of the fastening region 133 by sliding coupling.

Therefore, according to the safety door handle according to the present invention, it is possible to prevent the door from being completely closed inside the doorpost while the door rotates in a direction to close suddenly by an external force, and it is easy to switch between the door opening and closing mode and the safety mode In addition, as the handle part and the body part are combined through the guide rail, the assembling property can be increased, and the state in which the mode is switched can be stably maintained by providing a protrusion and a recessed part between the body part and the handle part, and the protrusion part and the recessed part Since the protrusion state of the protrusion can be adjusted to be selectively coupled, there is an effect that can prevent unnecessary mode switching.

In the above, specific embodiments have been shown and described to illustrate the technical idea of the present invention, but the present invention is not limited to the same configuration and operation as the specific embodiments as described above, and various modifications do not depart from the scope of the present invention. can be carried out within Accordingly, such modifications should be considered to fall within the scope of the present invention, and the scope of the present invention should be determined by the following claims.

100: safety door handle
110: body part
120: handle part
130: guide rail
10: door
20: doorpost

Claims (10)

a body portion rotatably coupled to at least one side of the door so as to interlock with a latch assembly provided on the door, and having a receiving groove therein; and
A door opening and closing mode in which one end is disposed on the body portion, and a safety mode in which the other end is disposed on the body portion and the one end protrudes outward from the front end of the door to prevent the door from being closed a handle portion disposed to be selectively slidable along the receiving groove, and provided with a guide rail for guiding the sliding movement on the receiving groove; including,
The handle portion is pressed during the door opening and closing process and is disposed at both ends of the main frame in the longitudinal direction of the main frame and the guide rail is provided on the rear surface along the longitudinal direction to switch to one of the door opening and closing mode and the safety mode. A safety door handle comprising: a side frame that is pressed when it is pressed; and a stopper protruding to face each other in both rear side regions of the main frame adjacent to the side frame and the guide rail. delete The method according to claim 1,
The side frame is
A safety door handle, characterized in that it is provided with a curved surface or an inclined surface from the main frame. The method according to claim 1,
The guide rail is
an extension protruding from the rear surface of the main frame;
and a protrusion protruding parallel to the main frame from both sides along the width direction at an end of the extension portion, and provided with a fastening area in which the width of the central area is partially reduced. 5. The method according to claim 4,
The fastening area is
The safety door handle, characterized in that the inclination or curvature formed along a first direction among the longitudinal directions of the main frame is formed more gently than the inclination or curvature formed along a direction opposite to the first direction. 5. The method according to claim 4,
The body portion includes a support provided inside the receiving groove,
The support part,
a rail groove into which the guide rail is slidably inserted;
A rail jaw provided to surround the protrusion of the guide rail in the upper portion of the rail groove;
and a fixing groove formed to insert at least a part of the stopper under the rail groove. 7. The method of claim 6,
The rail jaws protrude in a symmetrical shape so as to face each other from the support in the upper portion of the rail groove,
Safety door handle, characterized in that the gap between the other end of the pair of rail jaws facing each other is formed to be larger than the distance between the end of each side. 7. The method of claim 6,
The stopper is
The safety door handle, characterized in that the height or width of the terminal area in which the insertion into the fixing groove is completed is higher or wider than the initial area in which the insertion into the fixing groove starts. 7. The method of claim 6,
a protrusion provided in a through hole formed in the fixing groove, and a recess provided on the guide rail into which the protrusion is selectively inserted;
The stone is
an interference member protruding on the fixing groove so as to be at least partially inserted into the recess;
a pole having one end coupled to the interference member and penetrating the through hole;
a washer coupled to the pole adjacent to the interference member in the through hole;
an elastic body disposed between the washer and the inner jaw formed inside the through hole around the pole;
And a gripping member coupled to the other end of the pole,
The safety door handle, characterized in that when the gripping member is pulled out of the body, the mode of the handle can be changed while the interference member is spaced apart from the recess. 7. The method of claim 6,
a protrusion provided in a through hole formed in the fixing groove, and a recess provided on the guide rail into which the protrusion is selectively inserted;
The stone is
a ball protruding to be inserted at least partially into the recess;
a pole having one end coupled to the ball and passing through a through hole formed in the fixing groove;
an elastic body elastically supporting the ball and the pole in the through hole;
and a nut coupled to the other end of the pole;
Safety door handle, characterized in that when the mode of the handle is changed, the ball is elastically separated from the recess.

Images