KR100710718B1 - Opening device of door for utensil - Google Patents

Abstract

The present invention relates to a device for opening a door for a closed mechanism, the technical problem to be solved is to open the door by a predetermined angle in advance, when the door open signal is applied, the user can easily open the door even with a small force An apparatus for opening an appliance door, for example, an appliance for opening a refrigerator door.

SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the solution according to the present invention is a motor coupled to a body of a refrigerator, a cam coupled to the motor to rotate in a predetermined direction, and coupled to one side of the cam so as to be rotatable at a predetermined angle. A link having a predetermined length, and a rod coupled to an end of the link to convert the cam and the rotational motion of the link into a linear motion, and when an electrical signal is input to the motor, the motor moves the cam in a predetermined direction. A device for opening a door for a closing mechanism, in which the refrigerator door is opened by the pressing force of the rod, by rotating the rod, and then the cam rotating the link a predetermined angle and linearly moving, while the link linearly moving the rod.

Enclosure, Door, Motor, Cam, Link, Rod, Moving Block, Guide Block

Description

Opening device of door for utensil

1 is a front view showing a refrigerator to which the present invention is applied.

Fig. 2 is a partial plane cross-sectional view showing the opening device of the door for a closed mechanism according to the present invention.

3A to 3E are partial plan cross-sectional views showing an operating state of the door opening device for the closure mechanism shown in FIG.

<Description of Symbols for Main Parts of Drawings>

100; Refrigerator 110; Freezer door

111; Upper holder 112; Lower holder

113; Handle 120; Cold room door

121; Upper holder 122; Lower holder

123; Handle 124; Packing

127; Human body detection sensor 128; Control

130; Freezer upper hinge 140; Cold room upper hinge

150; Lower cover 161; motor

161a; Axis of rotation 162; cam

163; Link 164; Moving block

165; Roller 166; road

167; Guide block 190; Refrigerator body

The present invention relates to a device for opening a door for a closed mechanism, and more particularly, when the door open signal is applied, the door for a closed mechanism that the user can easily open the door with a small force by opening the door in advance by a predetermined angle. Of the opening device, for example of the refrigerator door.

Generally, a refrigerator is a device capable of storing various foods for a long time by a refrigeration cycle using a refrigerant. In general, a refrigerator is a freezer for preserving foods that require long-term storage in a frozen state, and unlike the freezer, a refrigerator can be stored for a short time without freezing. It is divided into a fridge for storing food to maintain freshness without spoiling. Classically, the refrigerator has a freezer compartment at the upper side of the refrigerator, and a refrigerating chamber at the lower side of the refrigerator. In recent years, the larger refrigerator has a freezer compartment on the left side of the refrigerator and a refrigerator compartment on the right side.

Such a refrigerator is equipped with a freezer compartment door through hinges at the upper and lower ends of the left end, and a refrigerator compartment door is mounted at the upper and lower ends of the right end. In addition, holders are mounted at the top and bottom of each door for convenient opening and aesthetics of each freezer and refrigerating compartment door, and a handle or roughly rod-shaped handle (hereinafter, 'handle') between the upper and lower holders. Collectively).

However, such a conventional refrigerator has an inconvenient problem in that the user strongly pulls the handle when opening the door. In other words, the door of the refrigerator is closed because the sealing force is vital, and the door is opened slightly only after the user pulls the handle strongly, and afterwards, the door has a small force around the hinge (installed to open gently with a bearing) on the other side. The structure is also open to.

Moreover, in recent years, as the refrigerator becomes larger, the size of the door becomes larger and the weight becomes heavier, so that the moment of inertia becomes larger, and thus a greater force is required when opening the door. Therefore, children and the elderly are more difficult to open the door in the recent large refrigerator.

The present invention is to overcome the above-mentioned conventional problems, an object of the present invention is to open the door by a predetermined angle in advance when a predetermined door opening signal is applied, the user can easily open the door even with a small force An apparatus for opening an appliance door, for example, an appliance for opening a refrigerator door.

In order to achieve the above object, the present invention provides a door opening device for a closed mechanism, wherein the door is opened in advance by a predetermined angle when a door opening signal is input.

In addition, the door opening device for a closed mechanism according to the present invention for achieving the above object is a motor coupled to the body of the refrigerator, a cam coupled to the motor to rotate in a predetermined direction, and a predetermined angle rotation on one side of the cam A link of a predetermined length that is possibly coupled, and a rod coupled to an end of the link to convert the cam and the rotational movement of the link into a linear movement, wherein when the electrical signal is input to the motor, the motor is connected to the cam. Rotate in a predetermined direction, and then the cam rotates and linearly moves the link by a predetermined angle, while the link linearly moves the rod, thereby opening the refrigerator door by the pressing force of the rod.

Here, the moving block capable of linear movement may be further installed on the rod of the region where the link and the rod are coupled.

In addition, rollers may be further installed at both ends of the moving block.

In addition, the rod may be coupled to the linear movement inside the rectangular guide block.

In addition, the moving block may be coupled to linear movement inside the rectangular guide block.

In addition, the moving block may be linearly coupled to the inside of the rectangular guide block in a linear motion, and the roller may be slidably coupled to the inner surface of the guide block.

In addition, the refrigerator door may be at least one of a freezer compartment door or a refrigerating compartment door.

In addition, a packing for reducing noise and mitigating shock may be further installed on a surface of the refrigerator door pressed by the end of the rod.

In addition, a handle may be installed in the door, a human body sensor may be installed in the handle, and a controller may be installed between the human body sensor and the motor.

The controller may compare the handle gripping time by the user with the reference time from the human body sensor and apply a door opening signal to the motor only when the handle gripping time is equal to or greater than the reference time.

As described above, the present invention has an advantage that the refrigerator compartment door or the freezer compartment door is automatically opened in advance, and the user is convenient, even if the user grips the refrigerator compartment door handle or the freezer compartment door handle for a predetermined time. In particular, the present invention has the advantage that the child or the elderly can easily open the refrigerator door or freezer door.

In addition, the present invention has the advantage that the roller is formed on both ends of the moving block in a linear motion, the moving block and the rod smoothly linear movement by the roller, and as a result, the door of the refrigerator is smoothly opened.

In addition, the present invention has an advantage that the packing is installed on the surface of the door to which the rod is pressed, there is little noise during the initial opening of the refrigerator door.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

1 is a front view showing a refrigerator to which the present invention is applied.

As shown in the refrigerator 100, a freezer compartment door 110 is mounted on a left side and a refrigerator compartment door 120 is mounted on a right side of the refrigerator 100. In addition, the freezing compartment door 110 is rotatably coupled to the freezer compartment body (not shown) by interposing the upper hinge 130 on one side, the refrigerating compartment door 120 also includes an upper hinge 140 on one side of the refrigerating compartment body ( (Not shown) is rotatably coupled. Of course, each door is hinged to the lower portion is coupled to each body, but this is not shown because it is not the gist of the present invention. In addition, the freezer door 110 has holders 111 and 112 mounted at upper and lower ends thereof, and a rotatable handle 113 having a substantially rod shape is mounted between the holders 111 and 112. Furthermore, holders 121 and 122 are mounted on the upper and lower ends of the refrigerating chamber door 120, respectively, and a rotatable handle 123 having a substantially rod shape is mounted between the holders 121 and 122. On the other hand, the lower cover 150 is provided below the respective doors 110 and 120.

Fig. 2 is a partial plane cross-sectional view showing the opening device of the door for a closed mechanism according to the present invention.

As shown, the opening device of the door for the sealing mechanism according to the present invention includes a motor 161, a cam 162, a link 163, a moving block 164, a rod 166, a guide block ( 167).

The motor 161 is coupled to the body 190 of the refrigerator, and the motor 161 is coupled to a rotating shaft 161a which rotates in a predetermined direction.

One end of the cam 162 is coupled to the rotation shaft 161a of the motor 161. Therefore, when a predetermined power is applied to the motor 161, the cam 162 also rotates in a predetermined direction by the rotation of the rotation shaft 161a.

The link 163 has a predetermined length, and one end is coupled to the other side of the cam 162. Here, the cam 162 and the link 163 are coupled to each other rotatably.

The moving block 164 is coupled to one end of the link 163. Here, the link 163 and the moving block 164 are coupled to each other to be rotated by a predetermined angle.

One end of the rod 166 is coupled to the moving block 164, and the other end of the rod 166 includes a refrigerator door 120 (the refrigerator door includes a freezer door 110 and a refrigerator door 120, but the refrigerator door 120 is here). It will be possible to contact the surface of the).

The guide block 167 is formed in a substantially rectangular shape so that the moving block 164 and the rod 166 can linearly move. In addition, rotatable rollers 165 are coupled to both ends of the moving block 164, and the rollers 165 are slidable along the inner surface of the guide block 167.

Subsequently, a packing 124 for noise reduction and shock mitigation may be further installed on the surface of the refrigerator door 120 that is pressed by the end of the rod 166. The packing 124 may be, for example, an elastic rubber material for reducing noise, but the present invention is not limited thereto.

Subsequently, a handle 123 is installed at the door 120, and the human body sensor 127 is further installed at the handle 123. In addition, the controller 128 is further installed between the human body sensor 127 and the motor 161. By this electrical configuration, the control unit 128 when the gripping time of the handle 123 by the user sensed from the human body sensor 127 exceeds the reference time, the door to the motor 161 as a ratio ( The open signal of 120 is applied. That is, even if the human body is detected through the human body sensor 127, the controller 128 does not immediately open the door 120, but only when the human body signal is input for more than a reference time. By operating the motor 161, the door 120 is opened. Therefore, the door 120 does not immediately open even if the child touches the handle 123 of the door 120 by hand instead of playing with the child or attempting to open the door 120.

3A to 3E are partial plan cross-sectional views showing an operating state of the door opening device for the closure mechanism shown in FIG. Here, since both the opening mechanism of the refrigerating compartment door and the opening mechanism of the freezing compartment door are the same, a description will be made mainly on the opening mechanism of the refrigerating compartment door.

Referring to FIG. 3A, a state in which the user does not dig the handle 123 of the refrigerating compartment door 120 is illustrated. At this time, the cam 162 coupled to the rotation shaft 161a of the motor 161 is positioned to point at about 6 o'clock, and the rod 166 is positioned at the lowest end by the rotational state of the cam 162. Stay intact. Of course, in this case, the refrigerating compartment door 120 maintains a state in which the refrigerator body 190 is completely in contact with the refrigerator body 190.

3B to 3E illustrate a state in which the user operates by holding the door handle 123 of the refrigerating compartment door 120 by hand to open the refrigerating compartment door 120.

First, the user grips the handle 123 of the refrigerating compartment door 120 by hand to open the refrigerating compartment door 120. Then, the human body sensor 127 outputs a predetermined signal to the controller 128, so that the controller 128 prepares to apply the open signal of the door 120. Of course, before applying the opening signal of the door 120 to the motor 161, the controller 128 detects the human body through the human body sensor 127 and whether the signal is continuously input for more than a reference time Judge.

If the detection signal through the human body sensor 127 is greater than or equal to a reference time, the controller 128 applies an opening signal of the door 120 to the motor 161, thereby as shown in FIGS. 3B to 3E. The operation is implemented.

That is, as shown in FIG. 3B, the cam 162 coupled to the rotation shaft 161a of the motor 161 rotates to point in the approximately 3 o'clock direction. Then, the link 163 coupled to the cam 162 rotates by a predetermined angle, and moves the moving block 164 and the rod 166 coupled thereto by a predetermined distance. At this time, the roller 165 coupled to the moving block 164 slides along the inner surface of the guide block 167. In addition, the rod 166 moves the door 120 of the refrigerator a predetermined distance outward, so that the door 120 of the refrigerator is opened. Of course, since the packing 124 is installed on the surface of the refrigerator door 120 in contact with the rod 166, there is little noise or impact.

Subsequently, as shown in FIG. 3C, the cam 162 coupled to the rotation shaft 161a of the motor 161 rotates to point in the approximately 12 o'clock direction. Then, the link 163 coupled to the cam 162 rotates a predetermined angle, and moves the moving block 164 and the rod 166 coupled thereto at the maximum distance. In addition, the rod 166 moves the door 120 of the refrigerator outward as much as possible, so that the door 120 of the refrigerator is opened as much as possible.

Subsequently, as shown in FIG. 3D, the cam 162 coupled to the rotation shaft 161a of the motor 161 rotates to point in the approximately 9 o'clock direction. Then, the link 163 coupled to the cam 162 rotates by a predetermined angle, and the moving block 164 and the rod 166 coupled thereto return a predetermined distance. Of course, at this time the door 120 of the refrigerator maintains the state moved to the outside as possible.

Finally, as shown in FIG. 3E, the cam 162 coupled to the rotation shaft 161a of the motor 161 rotates to point at approximately 6 o'clock. Then, the link 163 coupled to the cam 162 rotates by a predetermined angle, and the moving block 164 and the rod 166 coupled thereto are returned to their original positions. Of course, at this time, the door 120 of the refrigerator is maintained in a state moved outward as much as possible.

In this way, in the present invention, the door 120 of the refrigerator is opened in advance by an operation in which the rotating shaft 161a or the cam 162 coupled to the motor 161 rotates once. Accordingly, the refrigerator door 120 can be easily opened by only the operation of holding the handle 123 of the door 120 of a refrigerator by an ordinary user or a child or an elderly person.

As described above, the present invention has an effect that the refrigerator compartment door or the freezer compartment door is automatically opened in advance, and the user is convenient just by holding the refrigerator compartment door handle or the freezer compartment door handle. In particular, the present invention has the effect that the child or the elderly can easily open the refrigerator door or freezer door.

In addition, since the rollers are formed at both ends of the moving block in a linear motion, the moving block and the rod is smoothly linearly moved by the roller, and as a result, the door of the refrigerator is smoothly opened.

In addition, the present invention is provided by the packing on the surface of the door is pressed the rod, there is an effect that there is little noise during the initial opening of the refrigerator door.

What has been described above is just one embodiment for carrying out the opening device for the door for the sealing mechanism according to the present invention, the present invention is not limited to the above-described embodiment, as claimed in the following claims Without departing from the gist of the invention, anyone of ordinary skill in the art to which the present invention will have the technical spirit of the present invention to the extent that various modifications can be made.

Claims (11)

delete A motor coupled to the body of the refrigerator, A cam coupled to the motor and rotating in a predetermined direction; A link having a predetermined length coupled to one side of the cam to be rotated at a predetermined angle; A rod coupled to the end of the link, the rod converting the rotational motion of the cam and the link into a linear motion, When an electrical signal is input to the motor, the motor rotates the cam in a predetermined direction, and then the cam rotates and linearly moves the link by a predetermined angle, while the link linearly moves the rod, thereby pressing the rod. The opening device of the door for a closed mechanism, characterized in that the refrigerator door is opened by. 3. The opening device of the door of claim 2, wherein the rod of the region where the link and the rod are coupled is further provided with a moving block capable of linear movement. The opening device of the door of claim 3, wherein rollers are further provided at both ends of the moving block. According to claim 2 or 3, wherein the rod opening device of the door for a closed mechanism characterized in that the linear movement coupled to the inside of the rectangular guide block. According to claim 3, The moving block is a door opening device for a closed mechanism characterized in that the linear movement coupled to the inside of the rectangular guide block. The sealing mechanism of claim 3 or 4, wherein the moving block is linearly coupled to the inside of the rectangular guide block, and the roller is slidably coupled to the inner surface of the guide block. Opening device for the door. The opening device of the door for a closed mechanism according to any one of claims 2 to 4, wherein the refrigerator door is at least one of a freezer compartment door and a refrigerating compartment door. The device of claim 2, wherein a packing for reducing noise and mitigating shock is further provided on a surface of the refrigerator door pressurized by the end of the rod. According to any one of claims 2 to 4, wherein the door is a handle is installed, the handle is provided with a human body detection sensor, a control unit is installed between the human body detection sensor and the motor for a closed mechanism. Opening of the door. The method of claim 10, wherein the control unit compares the handle holding time by the user from the human body sensor with a reference time, and applies the door open signal to the motor only when the handle holding time is more than the reference time. Opening device for doors for airtight appliances.

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