KR200237392Y1 - Hinge device - Google Patents

Abstract

The hinge device according to the present invention, which is installed in the Kimchi refrigerator main body, is made of a substantially cylindrical one side is opened, the housing is formed with a shaft hole in the center of the closed side of the other side; A camshaft rotatably installed through the shaft hole in the housing, the camshaft having a fixed portion fixed to the kimchi refrigerator door and a substantially cam-shaped profile positioned in the inner space of the housing; At least a pair of leaf springs fixed to the inner space of the housing to press the operating cam portion of the cam shaft located at the space portion in the space portion of the housing and to elastically support the operating cam portion; And a cover coupled to the opening of the housing, the cover having a shaft hole formed at an approximately central portion to receive and support the end of the cam shaft. The pair of leaf springs support the cam shaft's actuating cam part to rotate in the direction of the door closing when the door is opened to 10 degrees with the door closed, and the cam part's actuating cam part until the door is fully open at 10 degrees. Resilient support so that the door rotates in the open direction. Therefore, a smooth door opening and closing operation can be achieved, and the door in the closed state can be completely adhered to the main body.

Description

Hinge Device {HINGE DEVICE}

The present invention relates to a hinge device for rotatably opening and closing the flow member with respect to the fixed member, and more particularly to a hinge device for supporting the upper opening and closing door of the kimchi refrigerator to be rotatable.

Kimchi refrigerator is a product that many housewives use, the door must be opened and closed smoothly. In particular, since the kimchi refrigerator has an upper opening door, it has difficulty in opening and closing the door due to the weight of the door. That is, to open the door must overcome the weight due to the weight of the door, and when closing the door must be careful because the door descends quickly due to its own weight. In addition, since the Kimchi refrigerator needs to block the inflow of air due to its characteristics, the door should be in close contact with the main body when the door is closed.

For this reason, a hinge device consisting of a hinge protrusion and a hinge hole having a simple structure generally known in the art has a problem of being used as a hinge device of a kimchi refrigerator.

The present invention has been devised in view of the above, the hinge device that can contribute to the convenience of use and reliability of the product by not only smoothly opening and closing the door is made smoothly but also the door is in close contact with the main body when the door is closed. The purpose is to provide.

1 is a front sectional view showing a structure of a hinge device according to an embodiment of the present invention,

Figure 2a to 2c is a side cross-sectional view for explaining the structure and operation of the hinge device according to an embodiment of the present invention,

3a to 3d is a front view, a right side view, a left side view and a plan view showing the structure of a housing constituting the hinge device of the present invention,

Figure 4a to 4d is a front view, a plan view, a right side view and a left side view showing the structure of the cam shaft constituting the hinge device of the present invention,

5a and 5b is a front view and a plan view showing the structure of the leaf spring constituting the hinge device of the present invention, and

6a and 6b is a front view and a side view showing the structure of the cover constituting the hinge device of the present invention.

Explanation of symbols on the main parts of the drawings

10; housing 11; space

13, 13 '; fixing groove 20; cam shaft

22; operating cam part 30, 30 '; leaf spring

40; cover

The hinge device according to the present invention for achieving the above object, is installed in the kimchi refrigerator main body, one side is formed of a substantially cylindrical, the shaft hole is formed in the center of the other side closed surface, the left and right sides of the inner space portion A housing in which two pairs of fixing grooves are formed; It has a fixed part fixed to the kimchi refrigerator door and an operating cam part having a substantially rectangular profile located in the inner space of the housing, is installed rotatably through its shaft hole in the housing, and in one diagonal direction of the operating cam part A cam shaft having a corner portion rounded to a predetermined radius of curvature; At least one pair of leaf springs respectively fixed to two pairs of fixing grooves of the housing to press the upper and lower operating cam portions of the cam shaft located in the space portions of the housing to elastically support the operating cam portions; And a cover coupled to the opening of the housing, the cover having a shaft hole formed at an approximately central portion to receive and support the end of the cam shaft.

In addition, according to an embodiment of the present invention, the upper and lower portions of the housing and the cover are each formed with a D-cutting portion for easy installation.

In addition, a flange portion between the fixed portion of the cam shaft and the operation cam portion is in contact with the closed surface inside the housing, a plurality of grooves are formed on the outer peripheral surface of the operation cam portion at equal intervals.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a front sectional view showing a structure of a hinge device according to an embodiment of the present invention, Figures 2a to 2c is a side cross-sectional view for explaining the structure and operation of the hinge device according to an embodiment of the present invention, Figures 3a to 3d Is a front view, a right side view, a left side view and a plan view showing the structure of a housing constituting the hinge device of the present invention, Figures 4a to 4d is a front view, a plan view, a right side showing the structure of a cam shaft constituting the hinge device of the present invention 5A and 5B are a front view and a plan view showing the structure of a leaf spring constituting the hinge device of the present invention, and FIGS. 6A and 6B are a front view showing the structure of a cover constituting the hinge device of the present invention. Fig. And side view.

As shown in FIGS. 1 to 2c, the hinge device according to the present invention includes a housing 10, a cam shaft 20, a pair of leaf springs 30 and 30 ′, and a cover 40.

The housing 10 is fixed to the kimchi refrigerator body (not shown), as shown in Figure 3a to 3d, one side is formed of a substantially cylindrical, a predetermined space portion 11 is formed therein The shaft hole 12 is formed in the center of the other side of the closed surface. Two pairs of fixing grooves 13 and 13 ′ are formed on inner walls of both sides of the space 11. In addition, several threaded holes 14 are formed at the edge of the opening of the housing 10, and an arrow 15 indicating the open and closed states of the door is engraved and / or printed on the outside of the closed surface. On the other hand, the housing 10 as described above is D-cut the upper and lower parts to facilitate the installation and assembly to the kimchi refrigerator body, whereby the housing 10 is simply installed in the installation hole formed in the body It can be fixed and installed by inserting it.

4A to 4D, the cam shaft 20 is operated in the fixing portion 21 fixed to the kimchi refrigerator door (not shown) and the space portion 11 of the housing 10. The cam part 22 is provided, and it is provided in the said housing 10 so that rotational movement is possible through the shaft hole 12. The actuating cam portion 22 has a substantially rectangular profile, and one corner of the diagonal direction is rounded with a predetermined radius of curvature, and a plurality of grooves 22a are formed at regular intervals on the outer circumferential surface of the actuating cam portion 22. have. In addition, a flange portion 23 is formed between the fixed portion 21 of the actuating cam portion 22 and the actuating cam portion 22 in contact with the closing surface in the space portion 11 of the housing 10. A shaft portion 24 is provided.

As shown in FIGS. 5A and 5B, the leaf spring 30 is formed of a flat plate of an elastic material having a predetermined thickness, and fixing protrusions 31 and 31 ′ are formed at both ends thereof. The leaf springs 30 are formed in pairs of two fixed grooves having both fixing protrusions 31 and 31 ′ formed in the housing 11 of the housing 11 in the space 11 of the housing 10. 13) is installed to press the operating cam portion 22 of the cam shaft 20 located in the space portion 11 by being inserted into the (13 ') to elastically press the operating cam portion 22 of the cam shaft 20. Play a supportive role. As a result, the operation cam portion 22 of the cam shaft 20 may be constrained in some cases in the space 11 of the housing 10, and may also be subject to rotational force. The elastic restoring force of the leaf spring 30 is used. This will be described later.

On the other hand, the cover 40 is coupled to the opening side of the housing 10, as shown in Figure 6a and 6b, several screw holes corresponding to the screw hole 14 of the housing 10 (44), it is adapted to be coupled to the housing (10) by a screw (50) fastened through the screw holes (14) and (44). In addition, the shaft hole 41 for receiving and supporting the shaft portion 24 of the cam shaft 20 is formed in the substantially central portion of the cover 40. Similarly to the housing 10, the cover 40 is also provided with a D-cutting portion for assembly to the main body at the upper and lower portions thereof.

Hereinafter, the operation of the hinge device according to the present invention will be described with reference to FIGS. 2A to 2C.

Figure 2a shows the relationship between the actuating cam portion and the leaf spring located in the space portion of the housing in the closed state, Figures 2b and 2c sequentially the process of deforming the leaf spring according to the rotation of the actuating cam portion according to the opening of the door. The figure shown. For reference, it will be described assuming that the operation cam portion rotates in the clockwise direction to open the door, and that the rotation is counterclockwise as the door closed.

In the door closed state shown in FIG. 2A, the actuating cam part 22 of the cam shaft 20 located in the space part 11 of the housing 10 lies in its long axis part in the horizontal direction. At this time, the elasticity by the pair of leaf springs 30, 30 'acts to rotate the operation cam portion 22 in the counterclockwise direction, the door is kept in a closed state in close contact with the main body.

When the door is lifted to open the door in the above state, the cam operating part 22 located in the space part 11 of the housing 10 starts to rotate clockwise, and at this time, the cam operating part 22 The long axis of the rotation is rotated while deforming the leaf spring (30, 30 '). Here too, the elasticity by the leaf springs 30 and 30 'acts to rotate the counterclockwise direction of the actuating cam part 22, so that the door is forced in the closing direction, as in FIG. 2C, It continues until the long axis part of the operation cam part 22 stands in a perpendicular direction.

As the above state continues and the door is further opened, the operation cam part 22 continues to rotate clockwise, so that the elasticity of the leaf springs 30 and 30 'starts from the moment of leaving the state of 2c. 22 acts to rotate clockwise, so that the door opens automatically. Although not shown, the operation cam portion located in the space portion of the housing in the state where the door is completely open, the long axis is lying in a horizontal direction, it is positioned in a rotationally symmetrical position with the position of Figure 2a.

On the other hand, when the door is closed, the actuating cam part rotates in a counterclockwise direction according to the closing operation of the door. In this case, as described above, the actuating cam part is opened vertically in the space part of the housing. The elasticity of the leaf spring acts on the actuating cam part, and at the moment beyond this point, the elasticity of the leaf spring acts in the direction in which the door is closed.

That is, the hinge device according to the present invention serves to automatically close the opening angle of about 0 degrees to 10 degrees when the door is opened, and to the automatic opening role from 10 degrees to 85 degrees. Therefore, the door can be opened and closed more smoothly, and the door can be brought into close contact with the main body while the door is closed.

According to the present invention as described above, since the door opening and closing operation of the Kimchi refrigerator can be made more smoothly, and the door is kept in close contact with the main body while the door is closed, the convenience of use, reliability and recognition of the product. Can be further increased.

As described above, the present invention has been described and illustrated with reference to a preferred embodiment for illustrating the principle of the present invention, but the present invention is not limited to the configuration and operation as shown and described. Rather, those skilled in the art will appreciate that many modifications and variations of the present invention are possible without departing from the spirit and scope of the appended claims. Accordingly, however, all suitable changes, modifications, and equivalents should be considered to be within the scope of the present invention.

Claims (3)

As it is installed in the kimchi refrigerator body, one side is made of a substantially cylindrical, the housing is formed with a shaft hole in the center of the other side of the closed surface, the left and right both sides of the inner space of the housing formed with two pairs of fixing grooves; It has a fixed part fixed to the Kimchi refrigerator door and an operating cam part having a substantially rectangular profile located in the inner space of the housing, is installed rotatably through the shaft hole in the housing, one side of the diagonal direction of the operating cam part A cam shaft rounded to an additional predetermined radius of curvature; At least one pair of leaf springs respectively fixed to two pairs of fixing grooves of the housing to press the upper and lower operating cam portions of the cam shaft located in the space portions of the housing to elastically support the operating cam portions; And, And a cover coupled to an opening of the housing and having a shaft hole formed at an approximately central portion thereof to receive and support an end portion of the cam shaft. The method of claim 1, The upper and lower portions of the housing and the cover, the hinge device, characterized in that each formed D-cutting portion for easy installation. The method according to claim 1 or 2, A hinge portion is formed between the fixed portion of the cam shaft and the operating cam portion, the flange portion in contact with the closed surface inside the housing, a plurality of grooves are formed on the outer peripheral surface of the operating cam portion at equal intervals.