KR20040016362A - Safety hinge - Google Patents

Abstract

A safety hinge that can fix an open state of a door by fixing an angle between both hinge pieces is disclosed. The safety hinge comprises a first hinge piece, a fixing frame including a rotating shaft portion rotatably mounted to the first hinge piece and a locking portion formed with a locking groove, and a locking jaw connected to the first hinge piece and corresponding to the locking groove. And a second hinge piece. When the locking groove and the locking jaw are engaged, the angle between the first hinge piece and the second hinge piece is fixed, and when the locking groove and the locking jaw are separated, the fixing frame is separated from the second hinge piece to open and close the door without friction and noise. Can be.

Description

Safety Hinges {SAFETY HINGE}

The present invention relates to a hinge that connects a door and a door frame, and more particularly, to a hinge capable of fixing an open angle of a door.

In general, the hinge is a tool for easily opening and closing the door by connecting the door and the door frame by a hinge, and two hinge pieces connected by the hinge are fixed to the door and the door frame, respectively, and connect the door to the door frame. Hinges are used for doors, porches, doors, windows, etc., as well as for small items for practical purposes such as boxes and packing cases.

As with the conventional hinge, there are some problems when the hinge only has a function for smoothly opening and closing the door by hinge. In other words, the door is not fixed in the open state and closed arbitrarily, which can prevent passage of cargo and ventilation of the room.In case of sudden closure of the door due to external force such as wind, body parts such as head, hands and feet are damaged. Can be. In particular, a weak person, such as a child, needs more attention because it may be fractured by a sudden closure of the door.

In order to solve this problem, the Republic of Korea Utility Model Registration No. 0281061 (announced on July 13, 2002) "Hinge lockable door" is disclosed. The hinge includes a fixing frame (1) fixed to the hinge door frame fixing surface 10 to be adjusted in the vertical or horizontal direction, and formed on the hinge door fixing surface (11) in the same shape as the cross section of the fixing frame (1) When the door is opened and closed through the passage (2), the fixing frame (1) can pass through the door fixing frame passage (2) without jamming, and the hook groove (3) formed at the end of the fixing frame (1) and the hook groove connected to the passage (2) (5) can be used to fix the open state of the door.

However, in this "door hinge can be fixed" the fixed frame (1) receives a constant force downward by its own weight is in contact with the inner surface of the fixed frame (1) and the passage (2), when the door opening and closing the fixed frame (1) and passage ( The friction of 2) prevents the smooth opening and closing of the door, and the sharp friction noise generated at this time causes noise pollution.

Accordingly, an object of the present invention is to provide a safety hinge that can fix the open state of the door, as well as open and close the door without friction and noise.

Another object of the present invention is to provide a safety hinge that can adjust the fixing angle of the door according to the use of the door.

1 is a perspective view of a safety hinge according to a first embodiment of the present invention.

2 is an exploded perspective view of the safety hinge of FIG.

3 is an exploded perspective view of the safety hinge of FIG.

4 is a side view for explaining a locking portion of the safety hinge of FIG.

5 is a perspective view of a safety hinge according to a second embodiment of the present invention.

FIG. 6 is a front view of the first and second hinges of FIG. 5. FIG.

7 is a perspective view for explaining the fixing frame of FIG.

8 is a bottom view of the fixing frame of FIG. 5.

9 is a bottom view of a fixing frame for explaining another example of use of the safety hinge of FIG.

10 is a rear view of a fixing frame for explaining another use case of the safety hinge of FIG.

<Explanation of symbols for the main parts of the drawings>

100, 200: Safety hinge 110, 210: First hinge piece

120, 220: Second hinge piece 122, 222: Passage hall

130, 230, 231, 232: Fixed frame 135: Fixed frame stand

235: Support groove 142, 242: First hanging

144, 244: second hanging 146, 246: locking groove

According to a preferred embodiment of the present invention for achieving the above object of the present invention, the safety hinge is a first hinge piece; A fixing frame rotatably mounted on one side of the first hinge piece and a locking portion formed with a locking groove, the fixed frame capable of reciprocating within a predetermined range of angles about the rotating shaft; And a second hinge piece hinged to the first hinge piece and including a locking step corresponding to the locking groove.

When the locking groove and the locking jaw are opened by opening the door, the angle between the first hinge piece and the second hinge piece is fixed by the fixing frame. In addition, since the fixing frame can move only within a certain range of angles around the rotating shaft, the fixing frame and the second hinge piece do not come into contact with each other to prevent the occurrence of friction and noise.

Preferably, the fixing frame includes a first hook and a second hook to form a locking groove. A flexible inclined surface is formed on the first hook, that is, on the hook located on the first hinge piece side, so that when the door is opened, the locking jaw moves smoothly along the inclined surface, and the locking jaw pushes the inclined surface and the fixing frame rises at a small range around the axis of rotation. do.

The fixed frame can receive force by moving down and receive its own weight while moving the fixed frame in any direction including up, down, left and right through elastic members such as coil spring, plate spring and rubber spring between the fixed frame and the first hinge piece. The locking groove and the locking jaw can be engaged.

It is preferable that a part of the rotating shaft part is supported by the first hinge piece in order to keep the angle of the fixing frame relative to the first hinge piece at the time of opening and closing the door.

As an example, a rotating shaft portion which is connected to the first hinge piece by a hinge and includes a fixing frame pedestal for limiting the rotation range of the fixing frame in contact with the first hinge piece is provided. The fixing frame further includes an arc-shaped fixing frame frame connected to the fixing frame pedestal, and a locking portion is formed at an end of the fixing frame frame.

As another example, the first hinge piece includes a support hole for supporting the fixing frame, and the rotating shaft portion includes at least one support groove that is coupled to correspond to the support hole. The fixing frame further includes an arc-shaped fixing frame connecting the locking portion and the rotating shaft. The fixed frame frame can accommodate the reinforcement shaft inside.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, but the present invention is not limited or limited by the embodiments.

Example 1

1 is a perspective view of a safety hinge according to a first embodiment of the present invention, Figure 2 is an exploded perspective view of the safety hinge of Figure 1 for explaining the combination of the fixing frame and the hinge pieces, Figure 3 is a safety hinge of Figure 1 As an exploded perspective view of the fixing frame base and the support frame for explaining the assembly. 4 is a side view for explaining a locking portion of the safety hinge of FIG.

1 to 3, the safety hinge 100 according to the first embodiment includes a first hinge piece 110, a second hinge piece 120, and a fixing frame 130. The fixing frame 130 includes a locking part rotatably mounted to the first hinge piece 110 and a locking part in which the locking groove 146 is formed, so that the locking step of the locking groove 146 and the passage hole 122 are coupled. Has a structure.

The fixing frame 130 is formed at the other end of the fixing frame base 135 and the other end of the fixing frame frame 140, one end of which is fixed to the fixing frame base 135 and the fixing frame base 135 connected to the hinge by the first hinge piece 110. And a locking groove 146 formed by the first hook 142 and the second hook 144.

The fixing frame 130 includes a fixing frame pedestal 135 as a rotating shaft portion, and the first hinge piece 110 includes a support frame 112 in which the first hinge piece 110 is partially indented to accommodate the fixing frame pedestal 135. Has Therefore, the fixing frame bracket 135 accommodated in the support frame 112 hinged is limited to the rotation by the space of the support frame 112, the movement of the fixing frame frame 140 and the locking groove 146 connected to the fixing frame bracket 135 The range is also limited. In addition, although the fixing frame 130 is inclined downward by the weight of the fixing frame 146, the fixing frame frame 140 is maintained in a horizontal state because the fixing frame pedestal 135 is constrained by the supporting frame 112. Support frame 112 surrounds the fixing frame support (135) to function to limit the left and right movement.

The horizontal fixing frame 140 forms an arc of about 90 degrees and passes through the passage hole 122 of the second hinge piece 120. The passage hole 122 is formed to have a size larger than a cross section of the fixing frame frame 140 to allow the fixing frame frame 140 between the first hanging hook 142 and the fixing frame support 135 to pass without friction and noise. A passage hole 122 is formed in the second hinge piece 120 to correspond to the fixing frame frame 140 in a horizontal state, and the fixing frame frame 140 passes between the first hanging rod 142 and the fixing frame support 135. It is at least spaced apart from the inner circumferential surface of the hole 122.

When the door (not shown) is opened, the first and second hinge pieces 110 and 120 are opened to each other, and the first hanging hook 142 is in contact with the lower portion of the passage hole 122, that is, the locking jaw. After the first hook 142 is in contact with the latching jaw, the fixing frame frame 140 moves up the axis of rotation, and descends by its own weight after passing through the first hook 142. At this time, the locking groove 146 and the locking jaw are fixed to open the door. The passage hole 122 forms a predetermined space above the fixing frame frame 140 so as not to disturb the movement of the fixing frame frame 140 when it is raised.

The first hook 142 has an inclined surface in order to smooth the sliding between the first hook 142 and the locking jaw of the passage hole 122. In addition, the second hanging hook 144 forming the locking groove 146 together with the first hanging hook 142 extends below the first hanging hook 142 so that the fixing frame 130 is completely removed from the second hinge piece 120. Prevent separation.

The pin hole 137 penetrating the fixing frame support 135 is positioned higher than the connection portion between the fixing frame support 135 and the fixing frame frame 140, and the fixing frame support 135 is supported by the pin and pin hole 137. 112 is hinged. Since the position of the hinge is high, the fixing frame pedestal 135 may be lifted when the fixing frame frame 140 is lifted by the first hook 142. In addition, a chamfer may be formed at an upper rear end of the fixing frame holder 135 to facilitate lifting of the fixing frame holder 135.

Example 2

5 is a perspective view of a safety hinge according to a second embodiment of the present invention, Figure 6 is a front view of the first and second hinges of FIG. 7 is a perspective view illustrating the fixing frame of FIG. 5, and FIG. 8 is a bottom view of the fixing frame of FIG. 5.

5 to 8, the safety hinge 200 according to the second embodiment includes a first hinge piece 210, a second hinge piece 220, and a fixing frame 230.

A support hole 212 for supporting the fixing frame 230 is formed in the first hinge piece 210. The support groove 235 formed in the fixing frame 230 is coupled to the supporting hole 212 and supported by the first hinge piece 210 to horizontally support the fixing frame frame 240. The support groove 235 includes a channel 237 in which the width of the support groove 235 decreases locally and increases. The support groove 235 is divided into a first space and a second space by the channel 237, and the fixing frame 230 may move up and down by the free space of the first and second spaces about the channel 237. have. In the present embodiment, the support groove 235 is formed in the shape of a bow tie, and the inner wall of the inner wall of the support groove 235 in contact with the first hinge piece 210 at the time of fixing the fixing frame 230 is perpendicular to the fixing frame 230. By forming the fixing frame 230 to be fixed horizontally.

Fixing frame 240 may be composed of a metal or a high hardness synthetic resin as an arc-shaped plate. The fixed frame frame 240 is integral with the rotating shaft portion formed with the support groove 235, the locking groove 246 is formed at the end of the fixed frame flame (240). The locking groove 246 is provided by the first hook 242 and the second hook 244 and is coupled to the passage hole 222 of the second hinge piece 220.

The fixing frame 230 is inserted into the support hole 212 and the support groove 235 is mounted on the lower portion of the support hole 212, thereby supporting the support groove 235 and the support hole 212. Although the fixing frame 230 is forced downward by the weight of the fixing frame 230, the inner wall of the supporting groove 235 supports the first hinge piece 210 in the opposite direction with respect to the channel 237 so that the fixing frame ( 230) level.

The horizontal fixing frame 240 forms an arc of about 90 degrees and passes through the passage hole 222 of the second hinge piece 220. The passage hole 222 is formed in a size larger than the cross section of the fixing frame 240 is formed at a position that passes the fixing frame 240 without friction and noise when fixing the fixing frame 230.

When opening the door (not shown), the first and second hinge pieces 210 and 220 are opened to each other and are fixed to the fixing frame 230 so as not to contact the passage hole 222 of the second hinge piece 220. Do not. As the first and second hinge pieces 210 and 220 are further opened, the first hook 242 contacts the lower portion of the passage hole 222, that is, the locking jaw. After the first hook 242 is in contact with the locking jaw, the fixing frame frame 240 is pushed up by the locking jaw to ascend the axis of rotation, and passes through the first hook 242 and then descends by its own weight. At this time, the locking groove 246 and the locking jaw are fixed to open the door. The passage hole 222 forms a predetermined space above the fixing frame 240 to prevent the movement of the fixing frame frame 240 when it is raised.

The first hook 242 has an inclined surface in order to smooth the sliding between the first hook 242 and the locking jaw of the passage hole 222. In addition, the second hanging hook 244 forming the locking groove 246 together with the first hanging hook 242 extends longer than the first hanging hook 242 so that the fixing frame 230 from the second hinge piece 220. To prevent complete separation.

As shown in FIG. 6, grooves 214 and 224 are formed at the upper ends of the first hinge piece 210 and the second hinge piece 220, respectively. This corresponds to the support hole 212 and the passage hole 222, respectively, it is possible to perform the fixing function of the door by mounting the fixing frame 230 in the grooves (214, 224) of the upper end of the hinge piece.

FIG. 9 is a bottom view of a fixing frame for explaining another use case of the safety hinge of FIG. 5, and the names and reference numerals of the same or substantially similar elements as those described above in this use example are used the same in the following description.

9, the fixing frame 231 includes three support grooves 235, 237, and 239, and forms an angle of 90 degrees, 120 degrees, or 150 degrees from the locking groove 246, respectively. By selecting one of the support grooves 235, 237, and 239 coupled to the support hole 212, an angle at which the door can be fixed may be adjusted.

In this use case, the three support grooves 235, 237, and 239 are disposed at 90 degrees, 120 degrees, and 150 degrees, but the present invention may include other examples in which the number of support grooves and the angle of arrangement of the support grooves are variously changed. have.

FIG. 10 is a rear view of a fixing frame for explaining another use case of the safety hinge of FIG. 5, and the names and reference numerals of the same or substantially similar elements as those described above in this use example are used the same in the following description.

Referring to FIG. 10, an accommodating space 252 is formed along a rear surface of the fixing frame 240, that is, an arc-shaped inner surface, and a reinforcement 250 is mounted in a horizontal or vertical direction. The reinforcing material 250 is for improving the strength of the fixing frame 232, it is preferably composed of a synthetic resin having strength and elasticity.

Since the frame is fixed horizontally and always separated from the passage hole, there is no friction and noise when opening and closing the door.

Since the fixing frame is directly supported by the first hinge piece, the structure is simple and there is no torsion of malfunction.

The opening angle of the door can be variously adjusted by using a fixing frame having a plurality of rotation shafts.

As described above, although described with reference to the preferred embodiments of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

Claims (11)

First hinge piece; A fixing frame rotatably mounted to the first hinge piece and a locking portion having a locking groove formed therein, the fixed frame being capable of reciprocating within a predetermined range with respect to the rotating shaft portion; And A second hinge piece hinged to one corner of the first hinge piece and including a locking step corresponding to the locking groove; The angle between the first hinge piece and the second hinge piece is maintained when the locking groove and the locking step are engaged, and the fixing frame is separated from the second hinge piece when the locking groove and the locking step are separated. There is a safety hinge. The method of claim 1, The fixing frame forms the locking groove including a first hook having an inclined surface facing the first hinge piece and a second hook spaced apart from the first hook by the thickness of the locking jaw, wherein the locking jaw is the first hook. Safety hinge, characterized in that coupled to the locking groove while moving along the slope of the hook. The method of claim 2, The fixing frame is a safety hinge, characterized in that it comprises a plurality of rotating shaft portion to adjust the angle of engagement between the first hinge piece and the second hinge piece. The method of claim 1, The rotating shaft portion is hinged to the first hinge piece and includes a fixing frame pedestal for limiting the rotation range of the fixing frame in contact with the first hinge piece, the fixing frame further comprises an arc-shaped fixing frame frame connected to the fixing frame pedestal And the locking portion is formed at an end of the fixing frame frame. The method of claim 4, wherein The first hinge piece is partially indented and includes a support frame for receiving the fixing frame pedestal, wherein the fixing frame pedestal is hinged to the support frame, characterized in that the safety light chip. The method of claim 5, The hinge for connecting the fixing frame pedestal and the support frame is a safety hinge, characterized in that positioned higher than the connection portion of the fixing frame frame and the fixing frame pedestal. The method of claim 4, wherein The second hinge piece includes a passage hole corresponding to the fixing frame frame to provide the locking jaw, wherein the passage hole is larger than the fixing frame frame. The method of claim 1, The first hinge piece includes a support hole for supporting the fixing frame, wherein the rotating shaft portion includes at least one supporting groove that is coupled to correspond to the supporting hole, and the fixing frame connects the locking portion and the rotating shaft portion. Safety hinge, characterized in that it further comprises an arc-shaped fixing frame. The method of claim 8, The support groove is a safety light chip, characterized in that the width of the support groove is reduced to increase the channel is formed so that the fixing frame reciprocates within a certain range of angle about the channel. The method of claim 8, The rotating shaft portion includes a plurality of support grooves, the safety hinge, characterized in that to adjust the angle of engagement between the first hinge piece and the second hinge piece. The method of claim 8, The fixing frame frame is a safety hinge, characterized in that to accommodate the reinforcement shaft.