KR200263466Y1 - Hinge for kimchi-refrigerator - Google Patents

Abstract

The present invention is formed so that the hinge shaft and the cam can withstand the stress generated when the hinge shaft and the cam is operated to maintain sufficient structural strength even when molding each part by the injection method, the recess formed in the lower end of the hinge shaft The convex portion of the lower portion of the housing is inserted into the hinge shaft relative to the housing, so the hinge of the kimchi refrigerator can be prevented from changing the length of the hinge shaft by the wear of the lower end of the hinge shaft.

The kimchi refrigerator hinge according to the present invention is a spring 61 is built in the housing 51, the lower end of which is sealed and the upper end is open, and a cam 71 having a spiral rotating guide portion 81 is formed on the spring 61. And the positioning portion 96 of the hinge shaft 91 so that the hinge shaft 91 can rotate while the hinge shaft 91 is inserted into the hollow hole 78 of the cam 81. The upper cap 101 disposed on the rotation guide part 81 of the cam 71 and fitted to the hinge shaft 91 to cover the upper end of the housing 51 is fixed by the fastening bolt 111. Kimchi refrigerator hinge.

Description

Hinge for kimchi-refrigerator}

The present invention relates to a hinge for a kimchi refrigerator, and more particularly, it is formed so that the hinge shaft and the cam can withstand the stress generated when the hinge shaft and the cam operate, and sufficient structural strength even when molding each part by the injection method. In the concave groove formed in the lower end of the hinge shaft, the convex portion of the lower part of the housing is inserted into the hinge shaft rotates relative to the housing, so that the length of the hinge shaft can be prevented from changing by the wear of the lower end of the hinge shaft. It is about.

Referring to FIG. 1, the conventional kimchi refrigerator hinge 1 has a lower cap 3 mounted at a lower end of the housing 1, and a cam 7 supported by a spring 5 embedded in the housing 1. The hinge shaft (9) is fitted to the positioning bar 11 of the hinge shaft (9) in the form of a bar (bar) can rotate along the rotation guide portion 13 of the cam (7), the housing (1) ) Is equipped with an upper cap 15 and two guides in the guide holes 17 and 19 of the cam 7 to prevent left and right rocking of the cam 7 and to guide the vertical movement of the cam 7. Rods 21 and 23 are fitted.

In the conventional kimchi refrigerator hinge configured as described above, when the door is closed, the positioning bar 11 of the hinge shaft 9 and the rotation guide 13 of the cam 7 adhere to each other to close the hinge shaft ( As 9) rotates, the positioning bar 11 pushes the cam 7 to move the cam 7 downward. The hinge shaft 9 rotates clockwise, whereby the positioning bar 11 of the hinge shaft 9 moves from the lower end of the rotation guide 13 of the cam 7 to the upper end thereof. 7) is pushed downward. When the door is opened, the positioning bar 11 of the hinge shaft 9 moves from the upper end of the rotation guide 13 of the cam 7 to the upper end so that the cam 7 is lifted by the compressed spring 5. do.

However, the conventional kimchi refrigerator hinge as described above can not manufacture the housing, cap, hinge shaft, etc. parts by the injection method due to the structural rigidity, the manufacturing cost is high, and the lower end of the hinge shaft disposed on the fixed part of the lower cam When the hinge shaft is rotated is worn by friction with the fixing portion, there was a problem that the positioning bar is easy to break.

Therefore, the object of the present invention is formed so that the hinge shaft and the cam to withstand the stress generated when the hinge shaft and the cam is operated to maintain a sufficient structural strength even by molding each part by the injection method, the lower end of the hinge shaft The convex portion of the lower portion of the housing is inserted into the concave groove formed in the hinge shaft to rotate relative to the housing to provide a kimchi refrigerator hinge that can prevent the length of the hinge shaft is changed by the wear of the lower end of the hinge shaft.

An example of a hinge for a kimchi refrigerator according to the present invention for achieving the above object is a spring is built in the housing is sealed at the bottom and the top is open, the cam is formed with a helical rotation guide is supported by the spring, A fastening bolt is provided with a positioning cap of the hinge shaft so that the hinge shaft can be rotated while the hinge shaft is inserted into the hollow hole of the cam, and the upper cap is fitted to the hinge shaft to cover the upper end of the housing. It is characterized by being fixed by.

The housing may be molded by an injection method, and a cylindrical portion is extended from the cam mounting portion at a lower end of an elliptical cam mounting portion having a flat portion formed therein, and a protrusion protruding into the cylindrical portion is formed.

The cam mounting portion is provided with two slide grooves for fixing the housing to the outer circumferential surface, three fastening portions having tab holes for fastening the first fastening bolts are formed on the inner circumferential surface, and the slide groove is predetermined with respect to the upper central axis. Characterized in that the position having an angle of.

The protrusion has an opening having a bottom open, and is inserted into a concave groove formed at a lower end of the hinge shaft to fix the lower end of the hinge shaft, so that the hinge shaft can always rotate about the central axis.

The cam is manufactured in the lower part and the upper part by an injection method, and the upper part and the lower part are assembled by the second fastening bolt, and have an elliptical shape in which a flat part is formed so as to correspond to the cam mounting part shape of the housing, and the fastening part of the housing is mounted. The three concave grooves and the slide grooves are formed on the inner circumferential surface of the hollow hole into which the hinge shaft is fitted on the outer circumferential surface, and a bolt hole for the second fastening bolt is formed.

The rotation guide part is formed to face each other two helical parts partially cut in the circumferential surface to guide the rotation guide part of the hinge shaft when the hinge shaft rotates, the horizontal surface and the inclined surface is formed on the top of the helical portion to act as a stopper It is characterized by.

The hinge shaft is divided into a head part protruding outwardly by the skirt part and a bag part disposed in the housing of the kimchi refrigerator and a bag part disposed in the housing, and a stopper is formed on an upper surface of the skirt part and starts at a lower surface of the skirt part. The two positioning parts are formed integrally with the bag part in a spiral form so as to correspond to the rotation guide part of the cam, and a concave groove is formed at the lower end of the bag part to accommodate the protrusion of the housing.

The upper cap has a profile corresponding to the shape of the cap mounting portion of the housing, a sliding groove is formed in the outer circumferential surface, three bolt holes are formed, and a stopper sliding portion for receiving the stopper of the hinge shaft around the hollow hole through which the hinge shaft passes. It is characterized by being formed.

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

1 is an exploded perspective view showing a hinge for a conventional kimchi refrigerator

Figure 2 is an exploded perspective view showing the hinge for the kimchi refrigerator according to the present invention

3 is a detailed view of the housing of FIG. 2;

4 is a detailed view of the cam of FIG.

5 is a detailed view showing the rotation guide part of FIG.

Figure 6 is a detailed view showing the upper cap of Figure 2

Detail view showing the hinge axis of FIGS. 7 and 2

8 and 9 are schematic diagrams showing the operating principle of the hinge shaft and the cam;

10 and 11 are cross-sectional view showing the hinge for the kimchi refrigerator according to the present invention

* Description of Signs of Main Parts of Drawings *

51 housing 61 spring

71: cam 81: rotation guide portion

91: hinge shaft 101: upper cap

111: Tightening Bolt

Referring to Figure 2, the kimchi refrigerator hinge according to the present invention is a cam (71) formed with a spring 61 is built in the housing 51, the lower end is closed and the upper end is open, the helical rotation guide portion 81 Position of the hinge shaft 91 supported by the spring 61 so that the hinge shaft 91 can rotate while the hinge shaft 91 is fitted in the hollow hole 78 of the cam 81. Determination portion 96 is disposed on the rotation guide portion 81 of the cam 71, the upper cap 101 is fitted to the hinge shaft 91 to cover the upper end of the housing 51 fastening bolt 111 Is fixed by.

Referring to FIG. 3, the housing 51 may be molded by an injection method, and at the lower end of the elliptical cam mounting portion 53 in which a flat portion 52 is formed, a cylindrical portion () in the cam mounting portion 53 may be formed. 54 is extended and a protrusion 55 protruding therein is formed in the cylindrical portion 54.

The cam mounting portion 53 has two slide grooves 56 for fixing the housing 51 on the outer circumferential surface thereof, and three fastening portions formed with tab holes 57 for fastening the first fastening bolts 111. 58 is formed in the inner circumferential surface. In addition, the slide groove 56 is located at a position having a predetermined angle (a: 60 °) with respect to the upper center axis X '.

The cylindrical portion 54 has a smaller inner diameter than the cam mounting portion 53.

The protruding portion 55 has an opening 55 'with a bottom open, and is fitted into a concave groove 97 formed at a lower end of the hinge shaft 91 to fix the lower end of the hinge shaft 91 so that the hinge shaft 91 is fixed. This always makes it possible to rotate about the central axis (X).

Referring to FIG. 4, the cam 71 has a lower portion 72 and an upper portion 73 manufactured by an injection method, and an upper portion 72 and a lower portion 73 are assembled by a second fastening bolt 74. The three concave grooves 76 and the slide having an ellipse shape in which a flat portion 75 is formed in a part so as to correspond to the cam mounting portion 53 shape of the housing 51, and the fastening portions 58 of the housing 51 are mounted. A rotation guide portion 81 is formed on the inner circumferential surface of the hollow hole 78 in which the hinge shaft 91 is fitted on the outer circumferential surface of the groove 77, and the bolt hole 79 for the second fastening bolt 74 is formed. Is formed.

Referring to FIG. 5, the rotation guide part 81 has two helical parts partially cut in the circumferential surface to guide the rotation guide part 97 of the hinge axis 91 when the hinge axis 91 rotates. 82 is formed to face each other, and the horizontal surface 83 and the inclined surface 84, which serves as a stopper on the upper end of the helical portion 82 is formed.

The helical portions 82 and 82 'have a spiral curvature that decreases in height in a counterclockwise direction.

Referring to FIG. 6, the hinge shaft 91 protrudes outwardly by a skirt part 92 and is disposed in the head part 93 and the housing 51 mounted to the door (not shown) of the kimchi refrigerator. A stopper 95 is formed on an upper surface of the skirt portion 92, and two positioning portions 96, starting from the lower surface of the skirt portion 92, are divided into a bag portion 94 arranged. It is formed integrally with the bag portion 94 in the form of a spiral so as to correspond to the rotation guide portion 81 of the cam 71, it can accommodate the protrusion 55 of the housing 51 at the lower end of the bag portion 94. Recessed groove 97 is formed.

Referring to FIG. 7, the upper cap 101 has a profile corresponding to the shape of the cap mounting portion 53 of the housing 51, and a sliding groove 102 is formed on an outer circumferential surface thereof, and three bolt holes ( 103 is formed, and a stopper sliding portion 105 for receiving the stopper 95 of the hinge shaft 91 is formed around the hollow hole 104 through which the hinge shaft 91 passes.

Kimchi refrigerator hinge according to the present invention configured as described above operates as follows.

For example, when the housing 51 is mounted to the main body (not shown) of the kimchi refrigerator and the hinge shaft 91 is mounted to the door (not shown), the door is opened. In the state, the hinge shaft 91 is rotated counterclockwise. At this time, the positioning portion 96 of the hinge shaft 91 is moved from the upper end of the helical portion 82 of the rotation guide portion 81 of the cam 71 to the lower end of the helical portion 82, the compressed spring ( The cam 71 rises upward by the d hook by the elastic force of 61 (see FIGS. 10 and 11).

When the door is closed, the hinge shaft 91 rotates the hinge shaft 91 clockwise (arrow direction) from the state of FIG. 9 to the state of FIG. 8. At this time, the positioning portion 96 of the hinge shaft 91 is moved from the lower end of the helical portion 82 of the rotation guide portion 81 of the cam 71 to the upper end of the helical portion 82. As a result, the positioning portion 96 of the hinge shaft 91 pushes the cam 71 to move the cam downward.

When the hinge shaft 91 rotates in this way, the rotation of the hinge shaft 91 is caused by the rotation of the hinge shaft 91 by the horizontal plane 83 and the inclined surface 84 of the rotation guide portion 81 of the cam 71. In addition, the stopper 95 of the hinge shaft 91 is limited in the sliding movement in the stopper sliding portion 105 of the upper cap 101, thereby limiting the rotation of the hinge shaft 91 to secondary. Further, when the cam 71 is raised, the cam 71 is formed by its own shape and the shape of the housing 51 and of the concave groove 76 and the slide groove 77 and the housing 51 of the cam 71. The fastening portion 58 does not rotate in the same direction as the hinge axis, but only slides upward.

As described above, the hinge for the kimchi refrigerator according to the present invention has a large contact area of the positioning portion of the hinge shaft contacting the rotation guide portion of the cam, so that the force applied to the positioning portion can be dispersed, so that the positioning portion of the hinge shaft is relatively High structural strength can maintain sufficient structural strength even if each part is molded by injection method, and the convex portion of the lower part of the housing is inserted into the concave groove formed at the lower end of the hinge shaft, so that the hinge shaft rotates relative to the housing. As a result, the length of the hinge shaft can be prevented from changing.

Claims (8)

A spring 71 is embedded in the housing 51 having the lower end closed and the upper end open, and a cam 71 having a spiral rotation guide part 81 is supported by the spring 61, and the cam 81 is supported. The positioning portion 96 of the hinge shaft 91 is a rotation guide portion of the cam 71 so that the hinge shaft 91 can rotate while the hinge shaft 91 is inserted into the hollow hole 78 of the hollow hole 78. Is disposed on (81), the hinge for the kimchi refrigerator, characterized in that the upper cap 101 is fixed to the hinge shaft 91 to cover the upper end of the housing (51) by the fastening bolt (111). The method of claim 1, The housing 51 may be molded by an injection method, and the cylindrical portion 54 extends from the cam mounting portion 53 at the lower end of the elliptical cam mounting portion 53 in which a flat portion 52 is formed. The hinge for kimchi refrigerator, characterized in that the cylindrical portion (54) protruding into the protrusion (55) is formed. The method of claim 2, The cam mounting portion 53 has two slide grooves 56 for fixing the housing 51 on the outer circumferential surface thereof, and three fastening portions formed with tab holes 57 for fastening the first fastening bolts 111. 58 is formed in the inner circumferential surface. And, the slide groove 56 is a hinge for kimchi refrigerator, characterized in that located at a position having a predetermined angle (a: 60 °) with respect to the upper central axis (X '). The method of claim 2, The protruding portion 55 has an opening 55 'with a bottom open, and is fitted into a concave groove 97 formed at a lower end of the hinge shaft 91 to fix the lower end of the hinge shaft 91 so that the hinge shaft 91 is fixed. The hinge for the kimchi refrigerator, characterized in that the rotation is always possible about the central axis (X). The method of claim 1, The cam 71 has a lower portion 72 and an upper portion 73 manufactured by an injection method, and the upper portion 72 and the lower portion 73 are assembled by a second fastening bolt 74, and the housing 51 of the An elliptical shape in which a flat portion 75 is formed in a portion so as to correspond to the cam mounting portion 53 shape, and the three concave grooves 76 and the slide grooves 77 on which the fastening portions 58 of the housing 51 are mounted are circumferential surfaces. Rotation guide portion 81 is formed on the inner circumferential surface of the hollow hole 78 into which the hinge shaft 91 is fitted, and a bolt hole 79 for the second fastening bolt 74 is formed. Hinge for kimchi refrigerator. The method of claim 5, The guiding portion 81 has two helical portions 82 which are partially cut in the circumferential surface thereof to guide the rotating guide portion 97 of the hinge shaft 91 when the hinge shaft 91 rotates. It is formed while looking, the hinge for the kimchi refrigerator, characterized in that the horizontal surface 83 and the inclined surface 84 to serve as a stopper on the top of the helical portion 82 is formed. The method of claim 1, The hinge shaft 91 is divided into a head portion 93 protruding to the outside by the skirt portion 92 and mounted on the door of the kimchi refrigerator and a bag portion 94 disposed in the housing 51. A stopper 95 is formed on the upper surface of the 92 so that the two positioning portions 96 starting from the lower surface of the skirt portion 92 correspond to the rotation guide portion 81 of the cam 71. Kimchi characterized in that it is formed integrally with the bag portion 94 in the form of a spiral, and a recessed groove 97 is formed at the lower end of the bag portion 94 to accommodate the protrusions 55 of the housing 51. Hinge for refrigerator. The method of claim 1, The upper cap 101 has a profile corresponding to the shape of the cap mounting portion 53 of the housing 51, the sliding groove 102 is formed on the outer peripheral surface, three bolt holes 103 are formed, the hinge shaft ( A hinge for kimchi refrigerator, characterized in that a stopper sliding portion 105 for receiving the stopper 95 of the hinge shaft 91 is formed around the hollow hole 104 through which 91 is passed.