KR20030085638A - Hinge for furniture - Google Patents

Abstract

PURPOSE: A hinge for furniture is provided to prevent the accident caused by a gap or a space between components. CONSTITUTION: The hinge for furniture contains: a frame(110) fastened to a mounting plate(MP) fixed to the inside of furniture; a frame cover(120) whose lower end is connected with the intermediate upper part of the frame by a pin(Pa); a body(130) whose backside is connected with the frame cover by a pin(Pc); a link(140) whose lower end is connected with the front end of the frame by a pin(Pb) and middle part is connected with the body by a pin(Pe); a hinge cup(160) fixed to the inside of a door and connected with the front end of the body by a pin(Pd); and a head cover(150) whose upper end is connected with the upper end of the link by a pin(Pf) and lower end is connected with the front of the hinge cup by a pin(Pg).

Description

Hinge for furniture

The present invention relates to a hinge for furniture, and more particularly, so that a space is not formed between the parts constituting the hinge in the opening and closing process of the hinge, so as to prevent safety accidents such as pinching fingers therebetween. Relates to a hinge for furniture.

1 and 2 show a typical furniture hinge. The furniture hinge as shown is usually composed of six parts, the opening and closing angle of about 165 degrees, and is widely used as a general furniture hinge.

As shown in the figure, the hinge is an apparatus provided between the side wall F and the door D of the furniture to support the door D so as to be opened and closed. Such a hinge includes a frame 10 fastened to a mounting plate MP fixed to an inner wall of the furniture, a frame cover 20 pin-connected to an upper portion of the frame 10, and the frame cover ( The body 30 pinned to the 20, the link 40 pinned to the body 30 and the frame 10, the head cover 50 pinned to the link 40, and the head cover ( 50 and a hinge cup 60 connected to the link 40 and fixed to the door D.

Mounting plate (MP) is fastened using a plurality of fastening bolts (Ba) on the inner wall of the furniture (F) to maintain a fixed state. And the frame 10 is detachably fastened to the mounting plate (MP) using a fastening bolt (Bb).

And the upper end of the middle portion of the frame 10, the lower end of the frame cover 20 is rotatably connected (hereinafter referred to as pin connection) through the pin (Pa). In addition, the lower end of the link 40 is connected to the front end of the frame 10 by a pin (Pb).

The upper end of the body 30 and the upper end of the frame cover 20 are connected to the pin Pc. The front end of the body 30, the pin (Pd) is connected to the rear end of the hinge cup 60, the middle of the body 30 is connected to the middle of the link (40) pin (Pe).

The rear end of the link 40 is connected to the front end of the frame 10 and the pin Pb, and the front end of the link is connected to the upper end of the head cover 50 and the pin Pf. The lower end of the head cover 50 is connected to the front end of the hinge cup 60 and the pin (Pg).

Next, the opening and closing operation of the general hinge will be described with reference to FIG. 2. 2A shows a state where the door D is closed. When the door D is opened in this state, the same process as in FIG. 2B is performed. In FIG. 2B, the door D is actually opened about 90 degrees.

As shown in FIG. 2B, when the door D is opened, the frame cover 20 and the link 40 are connected to respective connecting pins Pa according to the counterclockwise rotation of the hinge cup 60 fixed to the door. Rotate and move counterclockwise around Pb). The head cover 50 moves to the left side of the drawing along the door D that opens in the counterclockwise direction, and the link 40 rotates counterclockwise around the pin Pb of the lower end. .

And according to the counterclockwise rotation of the frame cover 20 and the link 40, the body 30 is supported through the pins Pc and Pd to move to the left side in the drawing. According to the opening and closing of the door, the body 30 moves in the left and right directions, in which the body 30 performs an arc-shaped motion in the left and right directions.

When the door D is completely opened, it will be in the state as shown in FIG. 2C. At this time, as the concave groove 52 formed inside the head cover 50 comes into contact with the pin Pd, the opening angle is regulated. The hinge having the above-described components has an opening angle of about 165 degrees. Open with.

When the door D is closed, it is natural to operate in the order of FIG. 2C to FIG. 2A. And look at the state in which the door (D) is completely closed as follows. A cylindrical bearing 54 is provided inside the head cover 50, and such a bearing 54 is elastically supported to the left by a spring 56. As shown in FIG. In addition, a cam member 62 is built into the hinge cup 60, and the bearing 54 is elastically tightly supported by the spring 56 on the outer surface of the cam member 62. In the state in which the door D is completely closed, the bearing 54 is caught by one side of the cam member 62, and the door D is elastically closed to maintain such a state.

In the hinge having such a configuration, the concern about safety accidents due to the components of the hinge has recently increased. That is, a space A formed between the link 40 and the head cover 50, a space B formed at a lower portion of the intersection of the body 30 and the link 40, and the body 30. ) And the space (C) formed between the frame 10 is pointed out as a problem of safety accidents. For example, if a finger enters the spaces A, B, or C, or a part of clothes stored inside the furniture is caught, damage to the user's body or damage to the clothes being stored, etc. The disadvantage that this can happen is pointed out.

Looking at the space as described above, it can be seen that the largest is formed in the state shown in Figure 2b. That is, when the door is opened at about 90 degrees, the spaces A, B, and C are formed the largest, and in this state, it can be seen that there is a high possibility that the above-described safety accidents may occur. will be. In particular, since the space B formed at the lower portion of the body 30 and the link 40 is large enough to allow a human finger to easily enter, the risk of safety accident as described above is very high.

In addition, when the safety accident occurs as described above, it may never occur in the process of going from FIG. 2A to FIG. 2C, that is, in the process of opening the closed door D, and in the process of closing the door D in the open state. Will occur.

Therefore, in the state of FIG. 2C, it generally occurs in the process of closing the doors to FIGS. 2B and 2A.

It is natural that the above-mentioned risks of safety accidents occur because the spaces A, B, and C described above are substantially formed. In order to eliminate such spaces A, B, and C, the provision of a separate member outside or inside the hinge causes an increase in the number of parts separately and complicates the hinge assembly and mounting processes. It appears as a drawback that significantly lowers productivity and handling.

The present invention has been made in view of such a conventional problem, to provide a hinge that is configured to prevent the risk of a safety accident by preventing a space formed therein during the opening and closing operation of the hinge.

Another object of the present invention is to provide a hinge capable of securing productivity and assemblability by preventing the occurrence of a safety accident by changing its own configuration without requiring a separate component.

Another object of the present invention is to prevent the risk of a safety accident by changing a part of the parts constituting the hinge, which means that it is possible to substantially ensure sufficient compatibility with the conventional parts.

1 is a perspective view of a conventional furniture hinge.

Figure 2a to 2c is an exemplary plan view showing a process of opening a conventional furniture hinge.

Figure 3 is a perspective view of the furniture hinge of the present invention.

Figures 4a to 4c is an exemplary plan view showing a process of opening the furniture hinge of the present invention.

Explanation of symbols on the main parts of the drawings

110 ..... Frame 120 ..... Frame Cover

130 ..... body 132 .... bending part

134 ..... Bottom 140 ..... Link

146 ..... Stopper 150 ..... Head cover

160 .... Hinge Cup 162 ..... Bulkhead

According to the present invention for achieving the above object, the frame is detachably fastened to the mounting plate fixed to the inner surface of the furniture; A frame cover having a lower end connected to a middle upper end of the frame (Pa); A body having a rear end portion connected to the frame cover and a pin (Pc); A lower end of which is connected to the front end of the frame and a pin (Pb), and a middle part of the link which is connected to the body and the pin (Pe); A hinge cup fixed to an inner side of the door and having a front end of the body connected to a pin (Pd); And the upper end is connected to the upper end of the link pin (Pf), the lower end of the hinge comprising a head cover connected to the pin (Pg) in front of the hinge cup; In the operation of the hinge by opening and closing the door, the frame cover and the link respectively perform an arc motion around the pins Pa and Pb; The body performs a circular motion to the left and right by the frame cover and the link, and when the body is spaced apart from the inner surface of the door and furniture, the lower side of the body to have a height equal to the upper surface of the frame It is characterized in that the extension molded.

And the bottom of the link is preferably molded in a straight shape.

Alternatively, the bottom of the link may be formed in a straight line shape, and a convex portion that is partially convex may be extended in the middle portion thereof.

In addition, according to the embodiment of the present invention, both side surfaces of the link are formed to have a stopper protruding outwardly, and when the door is opened to the maximum, the upper one side of the body contacts the stopper so that further opening is restricted.

And according to another embodiment, the link is operated by connecting the pins (Pe) in the inner side of both sides of the body, the upper surface of the body to form a cut portion by cutting a portion of the link operation, the cut portion It is configured to be inclined downward.

According to yet another embodiment, the hinge cup to which the head cover is connected is formed with partition walls extending upwardly from both side surfaces of the head cover.

According to the present invention as described above, it is understood that the space formed between the components constituting the hinge, for example, the frame, the frame cover, the body, the link, the head cover, and the hinge cup during the operation of the hinge is minimized. Can be. Therefore, the effect of being able to reliably prevent a safety accident such as a user's finger caught inside the hinge component can be expected.

Next, the present invention will be described in more detail with reference to the embodiments shown in the drawings.

3 and 4 show a hinge according to the invention. Looking at this in more detail with respect to the present invention. In the following description of the present invention, the same components as in the related art such as pins will be described with the same reference numerals.

The hinge according to the present invention includes a frame 110 fastened and fixed to a mounting plate MP fixed to an inner wall of the furniture, a frame cover 120 pin-connected to an upper portion of the frame 110, and the frame. Body 130 pinned to the cover 120, the link 140 pinned to the body 130 and the frame 110, the head cover 150 pinned to the link 140, and the head It is configured to include a hinge cup 160 connected to the cover 150 and the link 140 and fixed to the door (D).

As in the prior art, the mounting plate (MP) is fastened using a plurality of fastening bolts (Ba) on the inner wall of the furniture (F) to maintain a fixed state. The frame 110 is detachably fastened to the mounting plate MP using, for example, a fastening bolt Bb. The frame 110 may be directly fastened to the mounting plate MP, or may be configured to be detachably mounted to the mounting plate MP through a separate bracket installed inside.

In addition, the lower end of the frame cover 120 is rotatably connected to the upper portion of the middle portion of the frame 110 through the pin Pa (hereinafter referred to as pin connection). In addition, the lower end of the link 140 is connected to the front end of the frame 110 (pin).

The upper end of the frame cover 120 is rotatably connected to the rear end of the body 130 through the pin (Pc) connection. The left end (front end) of the body 130 is provided with a bent portion 132 of the L-shape, the front end is connected to the right portion of the hinge cup 160 and the pin (Pd). The middle portion of the body 130 is connected to the middle of the link 140 and the pin (Pe).

As can be seen in FIG. 4, according to the present invention, the bottom surface 134 of the body 130 is extended downward to have a height equal to or lower than the top surface 112 of the frame 110. have. That is, both bottom surfaces 134 of the body 130, in any state of Figs. 4A to 4C, the lower side so as to have a height substantially equal to or less than the upper surface 112 of the frame 110, It is further extended by.

The body 130 is connected to the upper end of the frame cover 120 and the middle of the link 140, respectively, the pins PPc and Pe. The frame cover 120 and the link 140 rotate in a counterclockwise direction according to the opening operation of the door, and the center points thereof are pins Pa and Pb. Accordingly, in the process of opening the door, the body 130 is moved forward by the frame cover 120 and the link 140 that rotates counterclockwise around the pins Pa and Pb. Will be Therefore, in the direction in which the door D is opened, the body 130 is located at the top at an opening and closing angle of approximately 70 to 90 degrees.

In addition, both bottom surfaces 134 of the body 130 have a bottom surface 134 that is substantially spaced apart from the inner surface of the door D or the furniture F at the moment when the body 130 is positioned at the top of the drawing. At this time, it should be molded downward to have a height substantially equal to the upper surface 112 of the frame 110. In this state, if the bottom surface 134 and the upper surface 112 to have the same height, substantially throughout the opening and closing process of the door, the bottom surface 134 can not be spaced apart from the upper surface 112, substantially between The formation of space is suppressed. As such, when the bottom 134 of the body 130 is most spaced apart from the inner surfaces of the door D and the furniture F, the bottom surface 134 has the same height as the top surface 112 of the frame 110, or By having the height below, generation of space can be suppressed as much as possible.

As described above, the bottom surfaces 134 of both sides of the body 130 are extended and molded downward, and have a height equal to or less than the top surface 112 of the frame 110, and thus can be seen in FIGS. 2B and 2C. As it is, no space is formed between the frame 110 and the body 130. As can be seen in FIG. 2B, which shows a conventional configuration, it can be seen that a space C is formed between the conventional frame 10 and the body 30. As in the present invention, the bottom surface 134 of both sides of the body 130 is substantially conventionally formed by extending downward to have a height equal to or lower than the top surface 112 of the frame 110. The space C is not formed.

As can be seen in FIG. 4, the bottom 134 of the body 130 extends downward so as to have a substantially equal height from the left end to the right end. As can be seen in FIG. 2, a space B was formed between the left end of the conventional body 30 and the lower end of the link 40. However, in the present invention, the bottom surface 134 of both sides of the body 130 are extended downwardly to have a total height equal to, but to have a height equal to or less than the top surface 112 of the frame 110. It can be seen that substantially no conventional space B is formed by this.

And, by the bending part 132 formed at the left end of the body 130, the concave portion 133 is formed to be concave substantially below the bending portion 132 is formed. The concave portion 133 is a portion for preventing interference with the inner edge portion Da of the door in a state where the door is substantially closed (FIG. 4A).

In the present invention, by minimizing the concave portion 133 of the bending portion 132, it is configured to minimize the gap generated between the bottom surface 134 and the door (D) of the body 130.

As described above, according to the present invention, both bottom surfaces 134 of the body 130 are formed by extending downward to have a height equal to or less than the top surface 112 of the frame 110. It can be seen that the conventional space B and the space C can be almost eliminated.

In the middle of the body 130 of the present invention, the middle of the link 140 and the pin (Pe) is connected. The rear end (right end) of the link 140 is connected to the front end of the frame 110 and the pin Pb, and the front end of the link (left end) is connected to the upper end of the head cover 150 and the pin Pf. It is.

Both bottom surfaces 142 of the link 140 according to the present invention are formed to have a straight shape or to be convex. Looking at the embodiment shown in Figure 4, it can be seen that the bottom surface 142 of both sides of the link 140 has a straight shape, the middle portion has a convex portion 144 extending in an arc shape. .

Referring to the conventional link shown in FIG. 2, it can be seen that the bottom surface of the link 40 includes a concave portion 42 formed in a concave shape. Such a recessed part 42 is a part comprised so that it may not interfere with the inner edge part Da of a door when the door D is fully opened.

However, the bottom surface 142 of the link 140 of the present invention has a convex portion 144 that has a substantially straight shape or is optionally convexly shaped conversely as in the prior art. As such, by forming the both bottom surfaces 142 of the link 140 in a straight line, the conventional space A is almost eliminated. In addition, by selectively forming a convex portion 144 that is slightly convexly formed in the middle portion of the bottom surface 142, as can be seen in FIG. 4B, the conventional space A is further obscured. Through this part, it will be possible to prevent a safety accident such as pinching a human finger.

As described above, the bottom 142 of the link 140 partially forms a convex portion 144 that is straight or slightly convex, so that when the door D is opened, the bottom 142 is an inner edge of the door. It may come into contact with the portion Da sooner. That is, according to the configuration of the present invention, by forming the bottom surface 142 of the link 140 in a straight or slightly convex form as described above, the opening angle of the door is reduced compared to the conventional. However, when the actual experiment is performed through the configuration as shown in FIG. 4, as can be seen in FIG. 4C, the opening and closing angle of the door D may be about 140 to 145 degrees. This is reduced compared to the conventional opening and closing angle of 165 degrees, but instead of eliminating the conventional space (A), and at the time of actual use of the opening and closing angle of about 140 degrees almost no inconvenience in use.

In the hinge of the present invention, the apparatus for regulating the rotation angle as described above is as follows. That is, as described above, when the hinge of the present invention is opened to the state shown in FIG. 4C, one side portion of the bottom surface 142 of the link 140 contacts the inner edge Da of the door D. FIG. There is a concern that the link 140 is in direct contact with the door (D), which will cause damage to the furniture, which must be prevented. Therefore, it is necessary to regulate the opening and closing angle of the hinge of the present invention which is different from the conventional door opening and closing angle.

According to the present invention, stoppers 146 protruding outwardly are formed on both side surfaces of the link 140. The stopper 146 may be formed by, for example, cutting a portion of both sides of the link and then pressing it outward. That is, when forming the link 140 by pressing the iron plate, the stopper is configured to press both sides to the outside to protrude a portion, or to protrude outward from the side by cutting the portion and pressing it outwards. It will be possible to mold 146.

In addition, the link 140 is assembled in an inserted state inside the body 130, and the stopper 146 of the link 140 comes into contact with an upper surface of one side of the body 130.

By forming the stopper in this way, as shown in FIG. 4C, when the door D is opened, the link 140 rotates counterclockwise, and the body 130 moves to the left side in the drawing. Will move. At this time, one side 138 of the upper surface of the body 130 is in contact with the bottom surface of the stopper 146 of the link 140, Figure 4c is thus one side 138 of the upper surface of the body 130 is The state which contacted the bottom face of the stopper 146 is shown. In this case, the door D will be in a fully open state and will not be opened any further.

In addition, a concave cover 135 is formed on a substantially lower side (bottom surface near the pin Pb) of the bottom surface 142 of the link 140. The escape part 135 prevents the lower end of the link 140 entering the inside of the hinge cup 160 from interfering with the hinge cup when the door is completely closed, and the interference with the pin Pg is prevented. It is formed to prevent it from happening. However, such an escape portion 135 is covered by the body 130 of the present invention, there is no fear that a space is formed.

That is, as can be seen in FIGS. 3 and 4, the link 140 is provided inside the body 130. Therefore, the escape portion 135 is covered by both sides of the body 130, so that the gap (space) does not substantially occur when opening and closing the door.

The upper end of the link 140 is connected to the upper end of the head cover 50 by a pin Pf, and the lower end of the head cover 50 is connected to the front end of the hinge cup 60 by a pin Pg. have.

Next, referring to FIG. 3, the upper surface portion and the hinge cup 160 portion of the body 130 will be described.

As described above, the link 140 is connected to the pin (Pe) on the inner side of both sides of the body (130). In addition, a portion of the upper surface of the body 130 is cut in order to secure a rotational operation space of the link 140 operating inward. In the conventional structure shown in FIG. 1, a part of the upper surface of the said body 130 is formed by the part 32 which opened. Since a finger or the like can enter through the opened portion 32, in the present invention, as shown in FIG. 3, a portion of the upper surface of the body 130 is incised, and then the incision 139 is downward. Bending with a constant angle of inclination The bending of the cutout 139 is to be configured so as not to cause interference when the upper surface of the link 140 operates. At the same time, as shown in FIG. 1, the molding of the cutout 139 without bending the opening 32 is performed to prevent the opening by the opening from being formed. That is, by forming a part of the body 130 as the cutout 139, a hole is not formed in the upper surface of the body 130, so that any safety accident can be prevented in advance.

In fact, when the hinge is mounted on the furniture, the cutout 139 is a visible part directly in front of the user. And as described above it is formed by forming the incision 139 and inclined forward so that the interference with the link 140 does not occur, it is understood that it is configured not to form any hole immediately in front of the user. Can be.

Looking at the portion of the conventional hinge cup 60 shown in Figure 1, a constant space (D) is formed between the head cover 50 and the hinge cup (60). It can be said that the user's finger can actually enter the space D. Accordingly, in the present invention, as shown in FIG. 3, in the hinge cup 160, partition walls 162 that are upright are formed on both sides of the head cover 150. The partition wall 162 is preferably formed integrally with each other when the hinge cup 160 is formed by die casting.

When the partition wall 162 is formed on the upper surface of the hinge cup, it is possible to completely block the space formed between the head cover 150 and the hinge cup 160 to completely prevent any safety accident that may occur. It will be possible.

Next, the opening and closing operation of the hinge having the above configuration will be described.

4A shows a state where the door D is closed. When the door D is opened in this state, the same process as in FIG. 4B is performed. In FIG. 4B, the door D is actually opened about 90 degrees. When the door D is completely opened, the door D is opened as shown in FIG. 4C, which has an opening angle of about 140 degrees to 145 degrees.

As shown in FIG. 4B, which illustrates the process of opening the door in FIG. 4A, when the door D is opened, the frame cover 120 and the link are in accordance with the counterclockwise rotation of the hinge cup 160 fixed to the door. 140 also rotates and moves counterclockwise around each of the connecting pins (Pa, Pb). The head cover 150 moves to the left side of the drawing along the door D that opens in the counterclockwise direction.

And according to the counterclockwise rotation of the frame cover 120 and the link 40, the body 30 is supported through the pins Pc and Pd to move to the left side in the drawing. The frame cover 20 rotates counterclockwise along the pin Pc of the upper end with the pin Pa at the lower end as the center.

Referring to FIG. 4B where the door D is opened about 90 degrees, as shown in FIG. 4B, the bottom surface 134 of the body 130 substantially coincides with the top surface 112 of the frame 110, or the bottom surface 134 may be formed. Since it is slightly lower than the upper surface 112, it can be seen that no space is formed between the body 130 and the frame 110 at all. In addition, since the space formed between the bottom surface 134 and the door D of the body 130 is also significantly smaller than the conventional one, it is almost impossible for a human finger to enter therebetween.

In addition, the bottom surface 142 of the link 140 is formed in a nearly straight line shape, or by forming a slightly convex convex portion 144 between the link 140 and the head cover 150 and the body 130. It can be seen that almost no space is formed.

Therefore, since the space formed between the body 130, the link 140, and the head cover 150 in the hinge is almost eliminated or formed in a very narrow space compared to the conventional one, there is almost no risk of a safety accident. It can be seen that there is no.

When the door D is continuously opened, the upper one side 138 of the body 130, more specifically, the upper one side 138 of the bending part 132, the stopper 146 of the link 140. Contact the bottom of the). In this case, the door D is substantially in a state in which it can no longer be opened. Therefore, it is possible to completely prevent the interference by the lower one side of the link 140 in contact with the door (D).

Although the above description has been substantially described through the process of opening the door D, the process of actually closing the door D proceeds in the reverse order, and the state of each component constituting the hinge is exactly the same.

Within the scope of the basic technical idea of the present invention as described above, of course, many other modifications are possible to those skilled in the art. It is apparent that the present invention should be construed based on the appended claims.

According to the present invention as described above is expected the following advantages.

According to the present invention, it can be seen that there is virtually no space formed between the respective components, such as the body 130, the link 140, and the head cover 150 constituting the door hinge. Therefore, there is no fear that a finger may be caught inside the hinge operating according to the opening and closing of the door, and there is little fear that the storage object such as clothing may be caught inside the hinge.

In addition, according to the present invention, it can be seen that the configuration is achieved so that the conventional spaces A, B, and C are not formed by using the shape of the hinge part, thereby achieving the object without substantially any additional parts. . Such a thing can achieve the desired purpose without increasing the number of components, and it turns out that it is very advantageous also from the standpoint of a raise of manufacturing cost, and assembly property.

Moreover, in this invention, it turns out that compatibility with the conventional component can be maintained as it is. In other words, while the structures of the body 130 and the link 140 are changed, the conventional design standard is satisfied with other parts associated with them, and the compatibility of the parts is substantially simple. Therefore, other conventional parts can be used as it is, it can be seen that there is a very desirable advantage in the production facility implementation.

Claims (6)

Frame 110 detachably fastened to the mounting plate (MP) fixed to the inner surface of the furniture; A frame cover having a lower end connected to a middle upper end of the frame (Pa); A body 130 having a rear end portion connected to the frame cover and a pin Pc; A link 140 having a lower end connected to the front end of the frame and a pin Pb, and a middle part connected to the body and the pin Pe; A hinge cup 160 fixed to an inner side of the door and having a front end of the body connected to a pin Pd; And the upper end is connected to the upper end of the link pin (Pf), the lower end is a hinge comprising a head cover 150 connected to the pin (Pg) in front of the hinge cup; In operation of the hinge by opening and closing the door, the frame cover 120 and the link 140 perform arc motions around the pins Pa and Pb, respectively; The body 130 performs the circular motion to the left and right by the frame cover 120 and the link 140, the body 130 is spaced apart from the inner surface of the door (D) and the furniture (F) maximum The hinge, characterized in that the lower side 134 of the body 130 is formed to extend downward to have a height equal to the upper surface 112 of the frame (110). The hinge according to claim 1, wherein the bottom surface (142) of the link (140) is formed in a straight line shape. The hinge according to claim 1, wherein the bottom surface (142) of the link (140) is formed in a straight shape, and a convex portion (144) formed in a partially convex shape is extended in the middle portion thereof. According to any one of claims 1 to 3, On both sides of the link 140 is formed a stopper 146 protruding outwardly, so that when the door is opened to the maximum one side of the upper portion ( 138) in contact with the stopper, further opening is restricted. According to any one of claims 1 to 3, The link 140, the pin (Pe) is operated in the inner side of both sides of the body 130, the upper surface of the body 130, the link ( A portion of the operating portion 140 is cut to form a cutout 139, wherein the cutout is configured to be inclined downward. According to any one of claims 1 to 3, The hinge cup 160 to which the head cover 150 is connected, forming a partition wall 162 extending upwardly from both sides of the head cover 150. Hinge characterized in that.