KR102021985B1 - Multi-link hinge device and Electronic Equipment using it - Google Patents

Abstract

Disclosed are a multilink hinge device and an electronic device including the same. According to an embodiment of the present invention, the multilink hinge device includes: a base bracket; a main link having one end connected with the base bracket; a support link having one end connected with the other end of the main link; a sub link having one end connected between the two ends of the main link; a curl link having one end connected with the base bracket and having the other end connected with the middle of the sub link; a tilt bracket connecting the other end of the support link with the other end of the sub link while having a gap therebetween; a cam part placed on the tilt bracket and having a cam surface; and a cam roller part including a cam roller placed at one end of the support link and combined with the cam surface, an elastic roller pressing the cam roller to the cam surface, and a roller link guiding the cam roller to make the roller move closely on the cam surface. Therefore, the present invention is capable of efficiently preventing external pollution by removing a leak part through which grease can leak.

Description

Multi-link hinge device and electronic equipment using 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 the door to swing open and close from the main body of the electronic device and an electronic device including the same.

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

Recently, these electronic devices have gone beyond the limits of the product itself to improve the internal structure and change the external design to match the structure of the house and the surrounding furniture. Commonly referred to as built-in home appliances include refrigerators, stylus, dishwasher, oven, etc. These products are very good internally and externally because they are designed considering the place to be installed from the design and construction stage of the building.

However, the built-in home appliances are designed to be in harmony with the surrounding environment and optimized for narrow or obstructed spaces, so the appearance of the electronic appliances in which the doors are opened or closed from the main body may decrease the utilization of the doors. . For example, since an electronic device having a storage space inside the door, such as a refrigerator, cannot be stably extended from the main body depending on a place where the door is installed, use of the electronic device is restricted.

Korean Patent 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 popped out and swing opened and closed 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 Curl link, one end of which is connected to the middle of the sub-link, the other end of which is connected to the other end of the support link and the other end of the sub-link, a tilt bracket, a cam portion provided on the tilt bracket and having a cam surface, and one end of the support link There is provided a multi-stage link hinge device including a cam roller provided in the cam roller, the cam roller having an elastic member for urging the cam roller to the cam surface, and a roller link for guiding the cam roller to move in close contact with the cam surface. Can be.

In addition, one end of the roller link may include a roller link shaft coupled to the support link shaft, and the other end may include a roller shaft pivoting around the roller link shaft and supporting the cam roller to be rotatable.

In addition, one end connected to the main link of the support link, the other end to which the tilt bracket is connected, and the roller link shaft may have a triangular shape.

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

The cam surface may further include a concave first cam surface, a convex second cam surface, and a concave third cam surface, and the stopper may include the cam roller from the second cam surface to the third cam surface. When moving, it can move away from the cam surface.

The cam part may include a cam guide accommodated in the tilt bracket, and a cam bar having a rear surface supported by the cam guide and having a cam surface on which the cam roller contacts.

In addition, the cam guide may be provided to surround the cam bar coated with grease on the cam surface.

According to another aspect of the present invention, including a multi-stage link hinge device provided as described above, the base bracket of the multi-stage link hinge device is provided in the main body of the electronic device, the tilt bracket of the multi-stage link hinge device rotates from the main body Electronic devices provided in the door to be opened and closed may be provided.

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

In addition, the multi-stage link hinge device and the electronic device including the same according to an embodiment of the present invention by providing a cam portion and a cam roller portion inside the pop-out and swing opening and closing operation so that the cam movement is made in the closing section is implemented auto closing In the opening section, the pre-open can be effectively implemented.

In addition, the multi-stage link hinge device and the electronic device including the same according to an embodiment of the present invention can be stably opened and closed operation is supported by the roller link so that the cam portion and the cam roller portion is always in close cam movement. In addition, grease is applied to the cam surface to which the cam roller contacts, and external contamination can be effectively prevented because the cam surface is wrapped by the cam guide and there is no leak portion from which grease can escape by using the roller link.

1 and 2 are views illustrating a door closing and an open state of a multi-stage link hinge device and an electronic device including the built-in installed state according to an embodiment of the present invention.
3 is a perspective view showing a multi-stage link hinge device according to an embodiment of the present invention.
4 is an exploded perspective view illustrating a part of a multi-stage link hinge device according to an exemplary embodiment of the present invention, in which the base bracket, the tilt bracket, and the link unit are exploded.
FIG. 5 is an exploded perspective view illustrating a part of a multi-stage link hinge device according to an embodiment of the present invention.
6 is an exploded perspective view illustrating a part of a multi-stage link hinge device according to an exemplary embodiment of the present invention, and illustrates a cam part and a cam roller part.
7 to 9 are diagrams illustrating a door closing and opening operation of a multi-stage link hinge device and an electronic device including the same according to an 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 an example to sufficiently convey the spirit of the present invention to those skilled in the art to which the present invention pertains. The present invention is not limited to the embodiments described below and may be embodied in other forms. Parts not related to the description are omitted in the drawings in order to clearly describe the present invention, the width, length, thickness, etc. of the components in the drawings may be exaggerated for convenience. Like numbers refer to like elements throughout.

1 and 2 illustrate a built-in refrigerator as an example of an electronic device provided with a multi-stage link hinge device according to an embodiment of the present invention. As illustrated, the multi-stage link hinge device 100 according to the present embodiment pops the door 4 from the refrigerator main body 3 installed in the built-in space 2 provided in the fixture 1 such as a wall or furniture. To open and close completely in the form of popout and swing. Although the refrigerator is illustrated as an example of the electronic device in the present embodiment, the present invention is not limited thereto and may be widely modified and modified to various electronic devices that open and close the door.

Referring to the drawings, the main body 3 of the electronic device includes an opening on the front surface, and the opening 4 is provided with a door 4 to open and close the opening. Both ends of the multi-stage link hinge device 100 are coupled to the main body 3 and the door 4, respectively. The multi-stage link hinge device 100 rotates the door 4 while popping out and swinging from the main body 3. It is opened and closed.

3 is a perspective view showing a multi-stage link hinge device according to an embodiment of the present invention, Figures 4 to 6 is an exploded perspective view thereof.

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

As shown in FIG. 4, the base bracket 110 is installed in 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' bent 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 rotatably coupled to the main body of the electronic device, and includes a tilt body 122 provided by processing a metal plate. The tilt body 122 may include various locking members such as unevenness and bolting provided to protrude on the plate so as to be firmly installed on 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 of the main link 130 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 may include a first main shaft 131 provided at one end of the main body 132 along a length direction and a second main shaft disposed in the middle of the main link 130. 133 and the third main shaft 135 provided at the other end. A 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 a third main shaft One end of the support link 160 is rotatably coupled to the 135.

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 a single metal plate, and includes a first sub shaft 141 provided at one end in a length direction of the sub body 142, and a second sub shaft disposed in the middle of the sub link 140. 143 and the third sub shaft 145 provided at the other end thereof. A 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. The second main shaft 133 of the main link 130 is rotatably coupled to the third sub shaft 145.

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 sub shaft 143 of the sub link 140 rotates of the second curl shaft 153. Possibly axially coupled.

The support link 160 is coupled to both ends of the tilt bracket 120 and the main link 130. The support link 160 may be provided by bending one metal plate, and may include 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. Can be. A second tilt shaft 123 of the tilt bracket 120 is rotatably coupled to the first support shaft 161, and a third main shaft 135 of the main link 130 to the second support shaft 163. This is rotatably coupled to the shaft.

As described above, when the tilt bracket 120 is rotated from the base bracket 110 for the electronic device opening and closing operation, the multi-stage link hinge device 100 provided with the brackets 110 and 120 and the link parts 120 to 160 may have a main structure. The link 130 rotates about the first main shaft 131, and then the sub link 140 and the support link 160, which are spaced apart from the tilt bracket 120 and the main link 130, rotate side by side. The radius of rotation is first adjusted, and then the rotating sublink 140 is adjusted second by the curl link 150, so that the tilt bracket 120 pops out and swings from the base bracket 110 finally. Rotate

On the other hand, the rotational movement (pop out and swing movement) of the tilt bracket 120 relative to the base bracket 110 may be made elastically by the cam unit 170 and the cam roller unit 180 is cam-coupled to each other.

Referring to FIG. 5, the cam unit 170 includes a cam guide 171 accommodated in the tilt bracket 120 and a cam bar 177 supported by the cam guide 171 and having a cam surface 177 formed at 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 cam shaft 172 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 ( 173, the first support shaft 161 of the support link 160 and the second tilt shaft 123 of the tilt bracket 120 are rotatably coupled.

The cam bar 174 is provided to have a predetermined thickness, and includes a first cam shaft 175 penetrating through one end in the thickness direction and a second cam shaft 176 penetrating through 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 first, as described above. It is also coupled to the sub-link 140, the support link 160 and the tilt bracket 120 is coupled to the two cam fixed shaft (172, 173).

In addition, the cam bar 174 is accommodated and supported inside the cam guide 171, the front surface includes a curved cam surface 177. The cam surface 177 is coated with grease to smoothly move the cam roller 181 of the cam roller unit 180 which is in contact with the cam for movement, and the cam guide 171 has a 'c' shape as described above. Since it is provided to surround the cam bar 174, the grease applied to the cam surface 177 is not exposed to the outside, thereby effectively preventing external contamination due to leakage.

As shown in FIG. 6, the cam roller unit 180 includes a cam roller 181 for cam coupling with the cam surface 177 of the cam bar 174, and a movable bar 182 for rotatably supporting the cam roller 181. And a fixed bar 183 coupled and supported by the movable bar 182 to be capable of sliding linear reciprocating movement, an elastic member 184 interposed between the movable bar 182 and the fixed bar 183, and a roller link 185. It includes.

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

The movable bar 182 has a through hole in the cylinder portion 182b, and the fixed bar 183 is coupled to the through hole of the movable bar 182 so that the slide bar 183a can linearly slide. The locking shaft 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 the cam surface 177 of the cam bar 174. To be pressed against

The roller link 185 is formed of a pair of facing plates, 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 coupled to the shaft, and the other end is provided with 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, the roller link shaft 187 of the roller link 185 is Since the cam roller 181 (or roller shaft 186) is located on the support link 160 to form a triangle with the first and second support shafts 161 and 163, the movable bar is moved around the roller link shaft 187. It is always elastically in close contact with the cam surface 177 while rotating on the plane which the advancing direction (X axis) of 182 and the cam profile direction (Y axis) of the cam bar 174 form. In addition, the support link 160 is provided with a stopper 168 to prevent the cam roller 181 from excessively pressing the cam bar 174.

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 main shafts 131, 133 and 135, the first and second sub shafts 141, 143 and 145, Although the first and second curl shafts 151 and 153 and the first and second support shafts 161 and 163 are simply referred to as axes, they are provided with through holes in a pair of left and right plates, which are bent and opposed as shown, respectively. It may refer to a form in which the shaft is assembled to the through hole.

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

7 illustrates a state in which the electronic device including the 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 main body 3 of the electronic device and the tilt bracket 120 provided in the electronic device door 4 are in a side-by-side state. The main bracket 130 and the sub link 140, the curl link 150, and the support link 160 are connected to each other inside the two brackets 110 and 120.

In addition, since the cam roller 181 of the cam roller part 180 is located in the 1st cam surface 177a of the cam part 170, and is pressurized by the elastic member 184, an electronic device has a main body 3 and a door. (4) can be kept stable.

8 illustrates a state in which an electronic device including a multi-stage link hinge device according to the present embodiment is opened.

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

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 made of the cam surface 177 of the cam portion 170 provided on the tilt bracket 120. It passes through 2 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 again to the main body 3, 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. The arrow in the figure is the direction in which the door 4 is opened.

9 illustrates a state in which the electronic device including the multi-stage link hinge device according to the present embodiment is completely 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 electronic device body 3. Pop out and swing operation so as not to interfere with a fixture such as a wall by the cam, wherein the cam roller 181 of the cam roller unit 180 is connected 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 portion 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. (H) is moved away, through which the door 4 of the electronic device can be swing-free operation from the main body 3 in the free state. This is usually about 80 to 130 degrees.

On the other hand, the cam roller 181 of the cam roller portion 180 moving along the first to third cam surfaces 177a, 177b, and 177c of the cam portion 170 is formed by the roller surface 185 as described above. 177) is always in close contact with each other so as not to leave the cam coupling. That is, the cam roller 181 flows from side to side 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 about the roller link shaft 187 and prevents the cam roller 181 from deviating from the cam surface 177 by a predetermined distance or more, the cam of the cam unit 170 and the cam roller unit 180 is rotated. The operation can be reliably implemented without error.

1..fixtures 3..mains of electronic devices
4. Electronic door 100. Multi-stage link hinge device
110 .. Base bracket 111,113. 1st, 2nd base shaft
120..Tilt bracket 121,123..First and second tilt shaft
130..Main link 131,133,135 .. 1st to 3rd main axis
140..Sub link 141,143 .. 1st and 2nd sub shaft
150.Curl Link 151,153..1, 2 Curl
160..Support link 161,163 .. 1st, 2nd support shaft
170..Cam part 171..Cam guide
174..Camba 177..Cam plane
180..Camroller part 181..Camroller
184.Elastic member 185.Roller link
186. roller shaft 187 roller link shaft

Claims (8)

With 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,
A curl link having one end connected to the base bracket and the other end connected to a middle of the sub link;
A tilt bracket connecting the other end of the support link and the other end of the sub link to be spaced apart from each other;
A cam portion provided on the tilt bracket and having a cam surface;
A cam roller provided at one end of the support link and having a cam roller cam-coupled to the cam surface, an elastic member for pressing the cam roller to the cam surface, and a roller link to guide the cam roller to move in close contact with the cam surface; ,
The cam unit includes a cam guide accommodated in the tilt bracket and a cam bar having a rear surface supported by the cam guide and having a cam surface to which the cam roller contacts. The method of claim 1,
One end of the roller link comprises a roller link shaft coupled to the support link shaft, the other end is rotated about the roller link shaft and a multi-stage link hinge device including a roller shaft for rotatably supporting the cam roller. The method of claim 2,
And one end connected to the main link of the support link, the other end connected to the tilt bracket, and the roller link shaft having a triangular shape. The method of claim 1,
And the support link includes a stopper for limiting the cam surface pressurization of the cam roller. The method of claim 4, wherein
The cam surface includes a concave first cam surface, a convex second cam surface, and a concave third cam surface, which are continuously provided,
And the stopper moves apart from the cam surface when the cam roller moves from the second cam surface to the third cam surface. delete The method of claim 1,
The cam guide is a multi-stage link hinge device provided to surround the cam bar coated with grease on the cam surface. Including a multi-stage link hinge device provided by any one of claims 1 to 5,
The base bracket of the multi-stage link hinge device is provided in the main body of the electronic device,
The tilt bracket of the multi-stage link hinge device is provided in a door that is rotated and opened from the main body.

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