KR102180678B1 - Multi-link hinge device and Electronic Equipment using it - Google Patents

Abstract

Disclosed is a multistage link hinge device and an electronic device including the same. A multistage link hinge device according to an embodiment of the present invention and an electronic device including the same include a base bracket, a main link connected to one end to the base bracket, a support link connected to the other end of the main link, and one end and the other end of the main link. A sub-link with one end connected between it, a curl link with one end connected to the base bracket and the other end connected to the middle of the sub-link, a tilt bracket that connects the other end of the support link and the other end of the sub link apart, and the main link It includes a damper provided in the damping operation toward the base bracket, and a guide rail provided on the base bracket to guide the damper rod provided so as to move forward and backward in the damper.

Description

Multi-link hinge device and electronic equipment including the same

The present invention relates to a multi-stage link hinge device, and more particularly, to a multi-stage link hinge device for guiding a door to be opened and closed by a pop-out and a swing from an electronic device main body, and an electronic device including the same.

In general, household electronic devices such as refrigerators, televisions, washing machines, audio, microwave ovens, dishwashers, and ovens are collectively referred to as white goods. White home appliances are attached because these products mainly use white or ivory colors, and they are also called low-tech home appliances that focus on appearance, stability, and user convenience because they are products that focus on housework.

In recent years, these electronic devices are improving the internal structure and changing the exterior design so that they go beyond the limitations of the product itself and fit well with the structure of the house and surrounding furniture. They are commonly referred to as built-in home appliances, for example refrigerators, stylus, dishwashers, ovens, etc. These products are excellent internally and externally because they are designed in consideration of the place to be installed from the design and construction stage of the building.

However, built-in home appliances are flat designed to harmonize with the surrounding environment and are designed to be optimized for spaces with narrow or obstacles, so they are excellent in appearance, but in the case of electronic devices in which the door is opened and closed from the main body, the utilization of the door may be reduced. . For example, an electronic device having a storage space inside a door, such as a refrigerator, is restricted in use because the door cannot be stably unfolded from the main body depending on the installation location.

Korean Patent Application Publication No. 10-2003-0055936 (2003.07.04)

The multi-stage link hinge device and the electronic device including the same according to an embodiment of the present invention allow the door to be stably pop-out and swing opening and closing operation from the main body.

According to an aspect of the present invention, a base bracket, a main link having one end connected to the base bracket, a support link having one end connected to the other end of the main link, a sub link having one end connected between one end and the other end of the main link, and a base bracket A curl link connected to one end and the other end connected to the middle of the sub link, a tilt bracket that connects the other end of the support link and the other end of the sub link apart, and a damper that is provided on the main link and operates damping toward the base bracket. , A multi-stage link hinge device including a guide rail provided on a base bracket to guide a damper rod provided to be moved forward and backward on the damper may be provided.

In addition, the guide rail includes a first slit rail guiding the damper rod to slide along with a main link rotating about a first main axis provided in the base bracket, and a second slit rail guiding the damper rod to a damping operation. It may include a slit rail.

In addition, the first slit rail may be provided in an arc shape on a concentric circle with the first main shaft, and the second slit rail may be provided in a linear shape.

In addition, the base bracket may include a bent base bottom and a base sidewell, and the second slit rail may be provided in parallel with the base sidewell.

In addition, the guide rail may include a first slit rail guiding the damper rod to rotate along a main link rotating with respect to the base bracket, and a second slit rail guiding the damper rod to perform a damping operation.

In addition, the support link may further include a cam coupling portion including an elastic member for elastically cam movement with respect to the tilt bracket.

In addition, the cam coupling portion is provided on the tilt bracket and has a cam surface, a cam roller provided at one end of the support link and cam-coupled with the cam surface, the elastic member pressing the cam roller to the cam surface, and a cam roller It may further include a cam roller unit having a roller link to guide the movement while in close contact with the cam surface.

In addition, one end of the roller link may include a roller link shaft axially coupled to the support link, and the other end may include a roller shaft that rotates about the roller link shaft and supports the cam roller so as to be rotatable.

In addition, the support link may include a stopper for limiting pressing of the cam surface of the cam roller.

In addition, the cam portion may include a cam guide accommodated in the tilt bracket and a cam bar having a rear surface supported by the cam guide and a cam surface in which the cam roller contacts the front surface.

According to another aspect of the present invention, including the multistage link hinge device provided as described above, the base bracket of the multistage link hinge device is provided on the body of the electronic device, and the tilt bracket of the multistage link hinge device rotates from the body An electronic device provided on a door that is opened and closed may be provided.

The multi-stage link hinge device according to an embodiment of the present invention and an electronic device including the same can stably pop-out and swing open/close operation from the base bracket provided on the electronic device body to the tilt bracket provided on the door by interlocking a plurality of links. Is supposed to be.

In addition, the multi-stage link hinge device and the electronic device including the same according to the exemplary embodiment of the present invention may close the door while smoothly rotating in some sections of the door closing operation by providing a damper in the link.

In addition, a multi-stage link hinge device according to an embodiment of the present invention and an electronic device including the same are provided with a cam part and a cam roller part inside during pop-out and swing opening/closing operations so that mutual cam movements are performed, thereby implementing auto closing in the closed section. In the open section, pre-open can be effectively implemented.

In addition, since the multi-stage link hinge device and the electronic device including the same according to the exemplary embodiment of the present invention are pivotally supported by the roller link so that the cam unit and the cam roller unit are always in close contact with each other, the opening and closing operation can be stably performed. In addition, grease is applied to the cam surface to which the cam roller contacts, and because the cam surface is covered by the cam guide and there is no leak part through which the grease can escape by using a roller link, external contamination can be effectively prevented.

1 and 2 are diagrams illustrating a door close and open state in a state in which a multistage link hinge device and an electronic device including the same according to an embodiment of the present invention are installed.
3 is a combined perspective view showing a multistage link hinge device according to an embodiment of the present invention.
4 is a partial exploded perspective view of a multi-stage link hinge device according to an embodiment of the present invention, illustrating an exploded view of a base bracket, a tilt bracket, and a link portion.
5 is a partial exploded perspective view of a multi-stage link hinge device according to an embodiment of the present invention, illustrating an exploded view of a link portion.
6 is a partial exploded perspective view of a multi-stage link hinge device according to an embodiment of the present invention, showing an exploded view of a cam portion and a cam roller portion.
7 to 9 are diagrams illustrating door closing and opening operations of a multistage link hinge device and an electronic device including the same according to an exemplary embodiment of the present invention.
10 is a perspective view showing a multistage link hinge device according to another embodiment of the present invention.
11 to 13 are diagrams illustrating door closing and opening operations of a multistage link hinge device according to another embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments introduced below are provided as examples in order to sufficiently convey the spirit of the present invention to those of ordinary skill in the art. The present invention is not limited to the embodiments described below and may be embodied in other forms. In order to clearly describe the present invention, parts irrelevant to the description are omitted from the drawings, and in the drawings, the width, length, thickness, etc. of components may be exaggerated and expressed for convenience. The same reference numbers throughout the specification denote the same elements.

1 and 2 are diagrams illustrating a built-in refrigerator as an example of an electronic device equipped with a multi-stage link hinge device according to an embodiment of the present invention. As shown, the multi-stage link hinge device 100 according to the present embodiment pops the door 4 from the refrigerator body 3 customized to the built-in space 2 provided in a fixture 1 such as a wall or furniture. It is for completely opening and closing in the form of popout and swing. In the present embodiment, a refrigerator is illustrated as an example of an electronic device, but the present invention is not limited thereto, and may be widely modified and modified to be applied to various electronic devices that open and close a door.

Referring to the drawings, the electronic device body 3 includes an opening in its front surface, and a door 4 is provided in the opening to be openable. Both ends of the multi-stage link hinge device 100 are coupled to the main body 3 and the door 4, and the door 4 rotates while popping out and swinging from the main body 3 by the multi-stage link hinge device 100. It is opened and closed.

3 is a combined perspective view showing a multistage link hinge device according to an embodiment of the present invention, and FIGS. 4 to 6 are exploded perspective views thereof.

Referring to the drawings, the multi-stage link hinge according to the present embodiment includes a base bracket 110 and a tilt bracket 120 fixedly provided on the main body 3 and the door 4 of the electronic device, and two brackets 110 and 120 respectively. It may include a plurality of link units (130, 140, 150, 160) to connect.

As shown in FIG. 4, the base bracket 110 is installed on the main body 3 of the electronic device and is provided by bending a metal plate. The base bracket 110 includes a base bottom 112 and a base side well 114 to have a'c' magnetic bending shape. A first base shaft 111 is provided at an edge between the base bottom 112 and the base side well 114, and a second base shaft 113 is provided at an end of the base side well 114.

The tilt bracket 120 is installed on the door 4 that is rotatably coupled to the electronic device body and includes a tilt body 122 formed by processing a metal plate. The tilt body 122 may include various locking members such as bumps or bolts that are protruded on the plate so as to be rigidly fixed to the door 4. The tilt body 122 may include a first tilt shaft 121 provided at one end and a second tilt shaft 123 spaced apart from one end at the other end.

The plurality of link units 130 to 160 include a main link 130, a sub link 140, a curl link 150, and a support link 160.

The main link 130 is provided to be accommodated inside the base bracket 110, and one end is rotatably coupled to the first base shaft 111 of the base bracket 110. The main link 130 may be provided by bending one metal plate, and a first main shaft 131 provided at one end along the length direction of the main body 132 and a second main shaft provided in the middle ( 133) and a third main shaft 135 provided at the other end. The first base shaft 111 is rotatably coupled to the first main shaft 131, and one end of the sub-link 140 is rotatably coupled to the second main shaft 133, and the third main shaft One end of the support link 160 is axially coupled to 135 so as to be rotatable.

Both ends of the sub link 140 are coupled to the tilt bracket 120 and the main link 130. The sub-link 140 may be provided by bending one metal plate, and a first sub-shaft 141 provided at one end along the longitudinal direction of the sub-body 142 and a second sub-shaft provided in the middle ( 143) and a third sub-shaft 145 provided at the other end. The first tilt shaft 121 of the tilt bracket 120 is rotatably coupled to the first sub shaft 141, and one end of the curl link 150 is rotatably coupled to the second sub shaft 143 Then, the second main shaft 133 of the main link 130 is axially coupled to the third sub shaft 145 so as to be rotatable.

Both ends of the curl link 150 are coupled to the base bracket 110 and the sub link 140. The curl link 150 may be provided by bending one metal plate, and may include a first curl shaft 151 provided at one end and a second curl shaft 153 provided at the other end. The second base shaft 113 of the base bracket 110 is rotatably coupled to the first curl shaft 151, and the second curl shaft 153 is rotated by the second sub shaft 143 of the sub link 140 Shaft coupling possible.

Both ends of the support link 160 are coupled to the tilt bracket 120 and the main link 130. The support link 160 may be provided by bending one metal plate, and includes a first support shaft 161 provided at one end of the support body 162 and a second support shaft 163 provided at the other end. I can. The second tilt shaft 123 of the tilt bracket 120 is rotatably coupled to the first support shaft 161, and the third main shaft 135 of the main link 130 is connected to the second support shaft 163. It is axially coupled to enable rotation.

The multi-stage link hinge device 100 provided with the brackets 110 and 120 and the link portions 120 to 160 as described above is first, when the tilt bracket 120 is rotated from the base bracket 110 for opening and closing of electronic devices. The link 130 rotates around the first main shaft 131, and then the sub-link 140 and the support link 160 spaced apart between the tilt bracket 120 and the main link 130 rotate side by side. The rotation radius is first adjusted, and then the rotation radius of the rotating sub-link 140 is secondarily adjusted by the curl link 150, and finally the tilt bracket 120 pops out and swings from the base bracket 110. While rotating.

Meanwhile, the rotational movement (pop-out and swing movement) of the tilt bracket 120 with respect to the base bracket 110 may be elastically performed by the cam unit 170 and the cam roller unit 180 that are cam-coupled with each other.

Referring to FIG. 5, the cam part 170 includes a cam guide 171 accommodated in the tilt bracket 120 and a cam bar supported by the cam guide 171 and having a cam surface 177 formed on one side thereof. 174).

The cam guide 171 is provided in a'C' shape, and includes a first cam fixing shaft 172 provided at one end and a second cam fixing shaft 173 provided at the other end. The first sub shaft 141 of the sub link 140 and the first tilt shaft 121 of the tilt bracket 120 are rotatably coupled to the first cam fixing shaft 172, and the second cam fixing shaft ( The first support shaft 161 of the support link 160 and the second tilt shaft 123 of the tilt bracket 120 are rotatably coupled to 173.

The cam bar 174 is provided with a predetermined thickness, and includes a first cam shaft 175 penetrating at one end in the thickness direction and a second cam shaft 176 penetrating at the other end in the thickness direction. Since the first cam shaft 175 is fixed to the first cam fixing shaft 172 and the second cam shaft 176 is fixed to the second cam fixing shaft 173, the cam bar 174 is The sub-link 140, the support link 160, and the tilt bracket 120, which are respectively axially coupled to the 2 cam fixing shafts 172 and 173, are also axially coupled.

In addition, the cam bar 174 has a rear side that is accommodated and supported inside the cam guide 171, and the front side includes a curved cam surface 177. Grease is applied to the cam surface 177 so that the cam roller 181 of the cam roller unit 180 that moves in contact for cam movement can move smoothly, and the cam guide 171 is in a'c' shape as described above. Since it is provided and surrounds the cam bar 174, the grease applied to the cam surface 177 is not exposed to the outside, so that external contamination due to leaks can be effectively prevented.

As shown in FIG. 6, the cam roller unit 180 includes a cam roller 181 that is cam-coupled with the cam surface 177 of the cam bar 174, and a movable bar 182 that rotatably supports the cam roller 181. And a fixed bar 183 that engages and supports the movable bar 182 so that the sliding linear reciprocation is possible, an elastic member 184 interposed between the movable bar 182 and the fixed bar 183, and a roller link 185. Includes.

The cam roller 181 is rotatably coupled to the roller cap portion 182a of the movable bar 182 using a roller shaft 186 provided on the roller link 185.

The movable bar 182 has a through hole inside the cylinder part 182b, and the fixed bar 183 is coupled to the through hole of the movable bar 182 so that the slide bar 183a can be linearly slid. The locking shaft portion 183b of the fixing bar 183 is axially supported by the second support shaft 163 of the support link 160. The elastic member 184 is provided in the form of a coil spring and is interposed between the movable bar 182 and the fixed bar 183, and the cam roller 181 provided on the movable bar 182 is provided on the cam surface 177 of the cam bar 174 Pressurized to adhere to the

The roller link 185 is made of a pair of plates facing each other, and at one end of the third support shaft 166 provided between the first support shaft 162 and the second support shaft 163 of the support link 160 The provided roller link shaft 187 is axially coupled, and the other end has a roller shaft 186 to support the cam roller 181 so as to be rotatable. The elastic sliding direction of the movable bar 182 is substantially parallel to the first support shaft 161 and the second support shaft 163 of the support link 160, and the roller link shaft 187 of the roller link 185 is Since it is located on the support link 160 to form a triangle shape with the first and second support shafts 161 and 163, the cam roller 181 (or roller shaft 186) is a movable bar around the roller link shaft 187 While rotating on a plane formed by the forward and backward direction of 182 (X axis) and the cam profile direction of the cam bar 174 (Y axis), the cam surface 177 is always elastically in close contact with the cam surface 177. In addition, the support link 160 is provided with a stopper 168 to prevent the cam roller 181 from pressing the cam bar 174 excessively.

Above, in the above embodiment, the first and second base shafts 111 and 113, the first and second tilt shafts 121 and 123, the first and second and third main shafts 131, 133 and 135, and the first, second, and third sub shafts 141, 143 and 145, The first and second curling shafts 151 and 153 and the first and second support shafts 161 and 163 are simply referred to as axes, but this is bent as shown to provide through holes in a pair of opposite left and right plates. It may mean a form in which a shaft is assembled in a through hole.

Then, the operation of the multi-stage link hinge device provided as described above and the electronic device including the same will be described with reference to FIGS. 7 to 9.

7 is a diagram illustrating a state in which an electronic device including a multi-stage link hinge device according to the present embodiment is closed.

As shown, when the electronic device is in a closed state, the base bottom 112 of the base bracket 110 provided in the electronic device body 3 and the tilt bracket 120 provided in the electronic device door 4 are in a parallel state. And, the main link 130 and the sub link 140, the curl link 150 and the support link 160 are connected to each other within the two brackets 110 and 120.

In addition, since the cam roller 181 of the cam roller unit 180 is located on the first cam surface 177a of the cam unit 170 and is pressed by the elastic member 184, the electronic device (4) Can keep the sealed state stably.

8 is a diagram illustrating a state in which an electronic device including a multistage link hinge device according to the present embodiment is opened.

As illustrated, when the door 4 from the electronic device body 3 starts to open, the main link 130 from the base bracket 110 rotates about the first main shaft 131. In addition, the sub-link 140 and the support link 160 provided side by side between the main link 130 and the tilt bracket 120 are also guided by the curl link 150 to move the tilt bracket 120.

When the rotation of the sub-link 140 is guided by the curl link 150, the cam roller 181 provided on the support link 160 is the first among the cam surfaces 177 of the cam part 170 provided on the tilt bracket 120. 2 It passes through the cam surface 177b. Unlike the concave first and third cam surfaces 177a and 177c, the second cam surface 177b is convex. When the cam roller 181 moves from the second cam surface 177b to the first cam surface 177a, the door ( 4) is automatically closed back to the main body 3, and the door 4 is automatically opened from the main body 3 when moving from the second cam surface 177b to the third cam surface 177c. The roller link 185 is always in close contact with the cam surface 177 regardless of which direction the cam roller 181 rotates. In the drawing, the arrow indicates the direction in which the door 4 is opened.

9 is a diagram illustrating a state in which an electronic device including a multi-stage link hinge device according to the present embodiment is fully opened.

As shown, the multi-stage link hinge device 100 is provided between the base bracket 110 and the tilt bracket 120 while the door 4 is opened from the main body 3 of the electronic device. Pop out and swing are operated so as not to interfere with fixtures such as walls, and at this time, the cam roller 181 of the cam roller unit 180 is attached to the third cam surface 177c of the cam unit 170 Located.

In addition, when the cam roller 181 moves from the second cam surface 177b of the cam unit 170 to the third cam surface 177c, the cam roller 181 is a predetermined distance from the third cam surface 177c by the stopper 168. It moves away from (H), and through this, the door 4 of the electronic device can swing from the body 3 in a free state without load. This is generally about 80 to 130 degrees.

Meanwhile, the cam roller 181 of the cam roller unit 180 moving along the first to third cam surfaces 177a, 177b, and 177c of the cam unit 170 is formed by the roller link 185 as described above. 177) is always in close contact and is limited so that it cannot be separated from the cam connection. That is, the cam roller 181 flows left and right when moving from the concave first cam surface 177a to the convex second cam surface 177b or when moving from the convex second cam surface 177b to the concave third cam surface 177c, Since the roller link 185 rotates left and right around the roller link shaft 187 to prevent the cam roller 181 from deviating from the cam surface 177 by more than a certain distance, the cam portion 170 and the cam of the cam roller portion 180 The operation can be implemented stably without errors.

10 is a diagram illustrating a multistage link hinge device according to another embodiment of the present invention, and FIGS. 11 to 13 are diagrams for explaining the operation of the multistage link hinge apparatus. Hereinafter, the present exemplary embodiment will be described focusing on differences from the exemplary embodiment, and since the same reference numerals perform the same function, a detailed description will be omitted.

The multi-stage link hinge device 200 according to the present embodiment connects the base bracket 210 and the tilt bracket 220 fixedly provided to the body and the door of the electronic device, respectively, and the two brackets 210 and 220, as in one embodiment. It may include a plurality of link units (230, 240, 250, 260).

The plurality of link units includes a main link 230, a sub link 240, a curl link 250, and a support link 260, and between the support link 260 and the tilt bracket 220, the A cam coupling portion 270 including a cam portion having a cam surface and a cam roller portion having a cam roller 281 and a roller link and an elastic member 284 may be provided.

According to this embodiment, a damper 290 may be provided on the main link 230 as shown in FIG. 10.

The damper 290 is provided along the length direction of the main link 230 and includes a damper housing 291 installed opposite the base bracket 210 and a damper rod 292 advancing and retreating from the damper housing 291 in the longitudinal direction. Include. A damper pin 294 is provided at an end of the damper rod 292.

The damper pin 294 is arranged in a'T' shape so that the central main axis is coupled with the damper rod 292, and the auxiliary axes on both sides can slide along the guide rail 215 provided on the base bracket 210. .

The guide rail 215 is a first slit rail 216 that slides the damper rod 292 along with the main link 230 rotating around the first main shaft 211, and the damper rod 292 is damped. It includes a second slit rail 217 guiding the operation.

As shown, the first slit rail 216 is provided in an arc shape, and the second slit rail 217 is provided in a straight line.

Since the arc-shaped first slit rail 216 is provided on a concentric circle with the first main shaft 211 that is the rotation center of the main link 230, the damper rod 292 is The damper pin 294 slides along the first slit rail 216.

The second slit rail 217 is continuously provided on the arc-shaped first slit rail 216 and is provided in a linear shape parallel to the base side well 214 of the base bracket 210. Since the rotation angle of the main link 230 that rotates about the first main shaft 211 relatively in the straight section of the second slit rail 218 is not very large, the damper rod 292 is substantially reduced in this straight section. As a result, the damper housing 291 moves forward and backward for damping.

Hereinafter, the operation of the multistage link hinge device according to the present embodiment will be described. Prior to the description, in the above embodiment, it was exemplified that the cam coupling unit including the cam unit 170 and the cam roller unit 180 implements auto-closing in the closed section and pre-opening in the open section. , In the present embodiment, the description of the cam coupling unit 270 is omitted, but it is of course possible to perform the same function including this.

11 to 13 are for explaining the operation of the multi-stage link hinge device according to the present embodiment, and FIG. 11 shows a state in which the multi-stage link hinge device is fully open, and FIG. 12 is a state in which the multi-stage link hinge device is open. Figure 13 shows a state in which the multi-stage link hinge device is completely closed.

As shown in FIG. 11, when an external force is applied from the main body of the electronic device while the door is completely open, the tilt bracket 220 connected to the door starts to rotate in the direction of the arrow, and at this time, the sub-link to the tilt bracket 220 The main link 230 connected to the 240 and the support link 260 also starts to rotate.

The main link 230 rotates about the first main shaft 211, and the damper rod 292 of the damper 290 provided on the main link 230 is provided on a concentric circle with the first main shaft 211. It slides along the first slit rail 216. Therefore, the damper 290 does not operate in this section.

When the main link 230 rotates around the first main shaft 211 to some extent in the closed direction, the damper rod 292 of the damper 290 is the first slit rail 216 of the base bracket 210 provided continuously. Moves to the second slit rail 217 at. 12, the starting point of the second slit rail 217 is a point where the angle between the base bracket 210 and the main link 230 is about 32 degrees, and the end point is the base bracket 210 and the main link ( 230) is a point where they overlap side by side as shown in FIG. 13. The damper rod 292 of the damper 290 moving along the second slit rail 217 performs a damping operation while approaching the damper housing 291 in a linear motion in this section. The door opened from the electronic device by the damper 290 is slowly closed.

As described above, in the present embodiment, the damping operation by the damper 290 in some section (the second slit rail 217) during the operation of closing the multi-stage link hanji device 200 has been described, but the present invention is not limited thereto and an open operation Of course, the damper 290 may be operated even during the opening operation. However, the damping operation of the damper may not be felt due to a relatively large external force during the opening operation.

1..Fixed object 3..Electronic device body
4.. Electronic device door 100,200.. Multi-stage link hinge device
110,210..Base bracket 111,211,113..1st and 2nd base shaft
120,220..Tilt bracket 121,123..1st and 2nd tilt axis
130,230..Main link 131,133,135..1st main axis to 3rd main axis
140,240..sub link 141,143..1st and 2nd sub-axis
150,250..curl link 151,153..1st and 2nd curl axis
160,260..Support link 161,163..1st and 2nd support shaft
170..cam part 171..cam guide
174..camba 177..cam surface
180..cam roller part 181,281..cam roller
184,284..elastic member 185,285..roller link
186..Roller shaft 187..Roller link shaft
280..cam joint

Claims (11)

With the base bracket,
A main link with one end connected to the base bracket,
A support link having one end connected to the other end of the main link,
A sub-link having one end connected between one end and the other end of the main link,
A curl link having one end connected to the base bracket and the other end connected to the middle of the sub-link,
A tilt bracket that connects the other end of the support link and the other end of the sub-link apart from each other,
A damper provided on the main link and a damping operation toward the base bracket, and a guide rail provided on the base bracket to guide a damper rod provided to move forward and backward in the damper,
The guide rail is
A first slit rail guiding the damper rod to slide along with a main link that rotates about a first main axis provided on the base bracket,
And a second slit rail which is continuously provided with the first slit rail and guides the damper rod to move forward and backward by damping,
The first slit rail is provided in an arc shape on a concentric circle with the first main shaft,
The second slit rail is a multi-stage link hinge device provided in a linear shape. delete delete The method of claim 1,
The base bracket includes a bent base bottom and a base side well,
The second slit rail is a multistage link hinge device provided in parallel with the base side well. With the base bracket,
A main link with one end connected to the base bracket,
A support link having one end connected to the other end of the main link,
A sub-link having one end connected between one end and the other end of the main link,
A curl link having one end connected to the base bracket and the other end connected to the middle of the sub-link,
A tilt bracket that connects the other end of the support link and the other end of the sub-link apart from each other,
A damper provided on the main link and a damping operation toward the base bracket, and a guide rail provided on the base bracket to guide a damper rod provided to move forward and backward in the damper,
The guide rail is
A first slit rail guiding the damper rod to rotate along the main link rotating with respect to the base bracket,
A multistage link hinge device comprising a second slit rail continuously provided on the first slit rail to guide the damper rod to move forward and backward through damping. The method of claim 1,
A multi-stage link hinge device further comprising a cam coupling portion including an elastic member for allowing the support link to perform a cam motion elastically with respect to the tilt bracket. The method of claim 6,
The cam coupling part
A cam portion provided on the tilt bracket and having a cam surface,
A cam roller unit having a cam roller provided at one end of the support link and cam-coupled with the cam surface, the elastic member pressing the cam roller to the cam surface, and a roller link guiding the cam roller to move while in close contact with the cam surface. Multi-stage link hinge device including. The method of claim 7,
One end of the roller link includes a roller link shaft axially coupled to the support link, and the other end pivots around the roller link shaft and includes a roller shaft rotatably supporting the cam roller. The method of claim 7,
The support link is a multi-stage link hinge device including a stopper for limiting pressing of the cam surface of the cam roller. The method of claim 7,
The cam unit includes a cam guide accommodated in the tilt bracket and a cam bar having a cam surface supported by the cam guide and a cam surface in which the cam roller contacts. Including a multistage link hinge device provided by any one of claims 1, 4 to 10,
The base bracket of the multistage link hinge device is provided on the body of the electronic device,
The tilt bracket of the multi-stage link hinge device is an electronic device provided on a door that is rotated and opened from the main body.

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