KR100487157B1 - Hinge device for storage case - Google Patents

Abstract

The present invention relates to a hinge device of a storage room, and in particular, by miniaturizing the hinge device, the hinge device does not protrude to the outside of the main body so that the exterior of the storage room can be beautiful and the structure is simplified, making the installation and installation easier. In addition, the cover can be opened and closed stably by limiting the rotation range of the cover.

According to an aspect of the present invention, there is provided a hinge device for storage, which rotatably connects a lid covering a main body, the housing being fixed to one of the main body and the cover; A hinge shaft rotatably coupled to the housing and having a cam shaft portion having a first cam on an outer surface thereof, and an extension portion having a predetermined length extending from the cam shaft portion to the outside of the housing to be fixed to the other one of the main body and the cover; A movable member coupled to an outer surface of the camshaft portion in a limited rotational direction and having a second cam facing the first cam; A pressing spring installed in the housing to press the moving member toward the first cam; In order to limit the range of rotation of the hinge shaft, at least one of the hinge shaft outer surface and the housing has a pivot limit groove formed in a rotational direction of the hinge shaft, and the other of the hinge shaft and the housing facing the pivot limit groove. It includes a rotation limit jaw formed to enter the rotation restriction groove.

Description

Hinge DEVICE FOR STORAGE CASE}

The present invention relates to a storage hinge device, and more particularly to a storage hinge device for rotatably connecting the cover coupled to the upper portion of the main body.

In general, the storage of the upper portion of the main body is a conventional kimchi storage to be opened or closed by rotating the upper cover. As shown in FIG. 1, the kimchi storage body includes a main body 1 having an upper storage compartment 2 formed therein, a lid 3 opening and closing an opened upper portion of the storage compartment 2, and a lid 3. The hinge device 4 is provided in the upper rear part of the main body 1 so that the main body 1 may be rotatably connected.

In such a storage, the hinge device 4 has a hinge case 4a which is installed at the rear upper part of the main body 1, and the hinge shaft 4b for rotatably connecting the lid 3 and the main body 1 is provided. It is installed inside the hinge case 4a. In the hinge case 4a, when the cover 3 is opened or closed, the expansion rod 4c for rotating the cover 3 in the opening or closing direction and the coil spring 4d for supporting the expansion rod 4c are provided. It is provided, the guide groove (4e) for guiding the expansion and contraction of the expansion rod (4c) is provided. The configuration of the hinge device 4 is generally such that when the user opens the cover 3 of the reservoir, it rotates in the direction in which the cover 3 opens, and when the cover 3 is closed, rotates in the direction in which the cover 3 closes. It is to enable easy opening and closing of the cover (3).

However, the hinge device 4 of the conventional reservoir has a problem that the configuration is complicated and bulky, and it is difficult to mount it in the process of manufacturing the reservoir. In addition, since the hinge device 4 is installed so that the hinge device 4 protrudes outward of the main body 1 due to the operation characteristic of the expansion rod 4c, the conventional hinge device 4 has a problem in that it is not convenient to use the reservoir. In addition, the conventional hinge device has a drawback that the cover can be opened excessively because it can not accurately limit the opening and closing range of the cover.

The present invention is to solve the above problems, an object of the present invention through the miniaturization of the hinge device is not only the hinge device can be mounted without protruding to the outside of the storage bin, but also easy to install the hinge device for storage To provide.

Another object of the present invention is to provide a storage hinge device for limiting the opening and closing range of the cover.

In order to achieve the above object, the present invention provides a hinge device for a storage unit rotatably connecting a cover covering a main body, the housing being fixed to any one of the main body and the cover; A hinge shaft rotatably coupled to the housing and having a cam shaft portion having a first cam on an outer surface thereof, and an extension portion having a predetermined length extending from the cam shaft portion to the outside of the housing to be fixed to the other one of the main body and the cover; A movable member coupled to an outer surface of the camshaft portion in a limited rotational direction and having a second cam facing the first cam; A pressing spring installed in the housing to press the moving member toward the first cam; In order to limit the range of rotation of the hinge shaft, at least one of the hinge shaft outer surface and the housing has a pivot limit groove formed in a rotational direction of the hinge shaft, and the other of the hinge shaft and the housing facing the pivot limit groove. Including a rotational jaw formed to enter the rotational restriction groove; The first cam and the second cam are characterized by having a triangular cam surface having one surface and the other surface in contact with each other and a vertical surface and an inclined surface, respectively.

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In addition, one end of the camshaft of the hinge shaft is supported to extend to the inner end of the spring receiving portion so that the movement in the axial direction is limited, the support jaw formed on the outer surface is supported by the inner surface of the cover portion, It protrudes from one surface of the support jaw to enter the rotational restriction groove.

In addition, the first cam and the second cam has a valley and a cam-shaped cam surface facing each other; The cam surface has an opening guide surface which is formed to be inclined in a helical direction so that the hinge shaft can rotate in the opening direction of the cover by the pressing of the movable member when the cover is opened, and by the weight of the cover when the cover is closed. It characterized in that it comprises a closing guide surface formed in the rotational direction of the hinge shaft so that the hinge shaft can rotate in the closing direction of the cover.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following description describes an example in which the hinge device according to the present invention is applied to a conventional top open kimchi storage.

Kimchi storage to which the hinge device according to the present invention is applied, as shown in Figures 2 and 3, the main body 10 and the storage compartment 11 is formed of a heat insulator and the upper opening is formed therein, The cover 20 is coupled to the upper portion of the main body 10 to open and close the upper portion.

The storage chamber 11 of the main body 10 is divided into left and right both spaces through the central partition 12. On the outer surface of each inner compartment 11a of each storage compartment 11, an evaporator 13 made of a conventional refrigerant pipe for cooling the storage compartment 11 and a heater 14 made of a conventional heating element for aging kimchi are provided. Is installed. In addition, the lower part of the main body 10 is provided with a storage chamber 11 and a machine room 16 partitioned so that the compressor 15 and the like can be installed.

The cover 20 of the upper portion of the main body 10 is provided on both sides so as to open and close the upper portion of each compartment storage compartment 11, the rear end of each cover 20 through the hinge device 30 through the main body ( 10) is connected in a rotatable state.

Here, the hinge device 30 according to the present invention performs a function of easily opening and closing the cover 20 as well as a function of rotatably connecting the main body 10 and the cover 20. This is in consideration of the fact that the cover 20 of the conventional kimchi storage has a predetermined weight because it is composed of a heat insulator, when the user opens the cover 20, the cover 20 is rotated in the opening direction and the cover 20 This is to allow easy opening and closing of the cover 20 by rotating the cover 20 in the closing direction when closing. In addition, the present invention is to provide a beautiful appearance by being mounted so that the hinge device 30 to perform such a function is smaller than the conventional to protrude to the outside of the main body 10.

As shown in FIG. 2, a plurality of accommodating spaces 17a are formed at the rear upper portion of the main body 10 so that the hinge device 30 can be accommodated and fixed therein. The hinge device coupling part 17 is provided, and a connecting part 21 is formed at the rear end of the cover 20 to correspond to the hinge device coupling part 17. When the main body 10 and the cover 20 are coupled through the hinge device 30, the hinge device 30 is coupled to be inserted into the accommodation space 17a of the coupling portion 17 of the main body 10, and the hinge device ( The shaft of 30 is coupled to the connecting portion 21 of the cover 20 so that the cover 20 is rotatably connected, and the hinge device 30 does not protrude to the outside. Here, the present embodiment shows an example in which the hinge unit coupling unit 17 is formed in the main body 10 and the connecting unit 21 to which the hinge shaft 40 is connected is formed in the cover 20, but the hinge unit coupling unit ( 17 may be provided on the cover 20 and the connecting portion 21 may be provided on the main body 10.

Meanwhile, as illustrated in FIGS. 4 and 5, the hinge device 30 is rotatably installed in the housing 40 and has a hinge shaft 50 provided with a first cam 53 and a length of the hinge shaft 50. The moving member 60 is installed in the housing 40 so as to retreat in a direction and has a second cam 62 facing the first cam 53, and the moving member 60 is moved to the first cam 53. It includes a pressure spring (70) for pressing in the direction.

The housing 40 of the hinge device 30 has a hollow body part 41 for accommodating the movable member 60 in a retractable manner, and a predetermined portion from one end of the body part 41 to accommodate the pressure spring 70. A spring receiving portion 42, which is extended in length and integrally formed with the body portion 41, is coupled to the opening of the body portion 41, and a shaft coupling hole 44 through which the hinge shaft 50 passes is formed in the center thereof. The cover part 43 is included. At this time, the inside of the body portion 41 is composed of a rectangular receiving space 45 so that the moving member 60 is accommodated in a limited rotation state to advance.

The spring accommodating part 42 is provided in the cylindrical shape of predetermined length so that the press spring 70 which consists of a normal compression coil spring is accommodated, and the end part is closed. In addition, the spring receiving portion 42 is provided with a size smaller than the size of the body portion (41). This configuration is to reduce the overall size of the housing 40 by reducing the size of the spring receiving portion 42, integrally by injection molding, etc. when manufacturing the body portion 41 and the spring receiving portion 42 It can be molded into. The cover portion 43 is coupled to the opening of the body portion 41 through a plurality of fixing screws 46.

The hinge shaft 50 enters and is installed in the body portion 41 of the housing 40 and has a cam shaft portion 51 provided with a first cam 53 on an outer surface thereof, and integrally with the cam shaft portion 51. It is provided with an extension portion 52 of a predetermined length extending to the outside of the housing 40 through the axial coupling hole 44 formed in the cover portion 43 of the housing 40. When the camshaft 51 of the hinge shaft 50 is installed in the housing 40, one end thereof is extended to the inner end of the spring receiving portion 42 so that it is supported by the closed end of the spring receiving portion 42 and the other end thereof. The movement in the axial direction is limited by being supported on the inner surface of the cover portion 43 so as to be caught by the shaft coupling hole 44 through the support jaw 54 formed at one side of the first cam 53. In addition, the extension portion 52 of the hinge shaft 50 is engaged in a state in which rotation with the cover 20 is restricted when the extension portion 52 is fitted into the coupling hole 22 formed in the connection portion 21 of the cover 20. A flat portion 52a is formed to be formed, and the coupling hole 22 of the cover 20 is also provided in a corresponding shape.

As shown in FIGS. 4 and 7, the movable member 60 is provided in a shape corresponding to an inner shape of the body portion 41 so that the moving member 60 moves back and forth along the inner surface of the body portion 41 of the housing 40. The through hole 61 is formed at the center of the cam shaft 51 so as to be fitted to the outer surface of the cam shaft 51. And the inner surface of the body portion 41 of the housing 40 is provided with a guide rail 47 formed long in the longitudinal direction of the hinge shaft 50 so that the moving member 60 can be smoothly moved back and forth in a restricted state. The guide member 63 is coupled to the moving member 60 to correspond to the guide rail 47.

The second cam 62 of the movable member 60 is one surface of the movable member 60 facing the first cam 53 so as to cause rotation of the hinge shaft 50 through the advancing / removing operation of the movable member 60. It is formed integrally with. The pressure spring 70 moves the moving member 60 toward the first cam 53 while being fitted to the outer surface of the cam shaft portion 51 of the hinge shaft 50 entered into the spring receiving portion 42 of the housing 40. It is installed to pressurize. This configuration is such that the cam surface 64 of the second cam 62 of the moving member 60 keeps pressing the cam surface 55 of the first cam 53 formed on the cam shaft portion 51.

The cam surface 55 of the first cam 53 and the cam surface 64 of the second cam 62 are valleys and hills so as to form a structure in which they are engaged with each other as shown in FIGS. 4, 7 and 8. Is prepared. In addition, the cam surfaces 55 and 64 of the first cam 53 and the second cam 62 are pressurized springs 70 to press the moving member 60 when the cover 20 of the reservoir is opened at a predetermined angle or more in the process of opening the reservoir. The hinge shaft 50 coupled with the cover 20 by elasticity of the cover 20 is provided with opening guide surfaces 55a and 64a of a predetermined section that are formed to be inclined in a helical direction so as to generate a force to rotate in the opening direction of the cover 20. do. This causes the cover 20 to remain open without being closed by its own weight by applying a force that rotates in the opening direction of the cover 20 to the hinge shaft 50 while the cover 20 is opened for a predetermined angle or more. It is.

In addition, the cam surfaces 55 and 64 of the two cams 53 and 62 have a hinge shaft 50 coupled with the lid 20 when the lid 20 is opened at a predetermined angle or less when the lid 20 is closed. In order to be able to rotate in the closing direction of the cover 20 by the weight of the 20, the closing guide surfaces 55b and 64b of the predetermined section formed in the rotational direction of the hinge shaft 50 are provided. This force is applied to the hinge shaft 50 even if the pressing force of the pressure spring 70 is applied in a state where the closing guide surface 55b of the first cam 53 and the closing guide surface 64b of the second cam 62 are in contact with each other. By not affecting the rotation of the cover 20 is to be closed by its own weight.

In addition, the cam surfaces 55 and 64 of the first cam 53 and the second cam 62 may be filled with lubricant to reduce friction of the contact surface when rotating in contact with each other so that smooth rotation is achieved and noise is not generated. The lubrication groove 56 of a predetermined depth is formed. At this time, the lubricant filled in the lubrication groove 56 is selected to have a predetermined viscosity so as not to flow out from the lubrication groove 56.

In addition, the hinge device 30 according to the present invention is provided for the stable opening and closing of the storage compartment cover 20 and has a rotation limiting means for limiting the rotation range (R) of the hinge shaft (50). That is, the present invention is limited to the rotation range (R) of the hinge shaft 50 to correspond to the substantial opening and closing range of the cover 20 to enable the stable opening and closing of the cover (20). For this purpose, the rotation limiting means includes a rotation limiting groove 81 formed at a predetermined section in a rotational direction of the hinge shaft 50 at one side of the shaft coupling hole 44 of the cover portion 43 of the housing 40, and the rotation limiting groove ( It consists of a rotation limiting jaw 82 formed on the outer surface of the hinge shaft 50 in contact with the support jaw 54 to enter the 81. This configuration is such that when the hinge shaft 50 is rotated by the opening and closing operation of the cover 20, the turning limit jaw 82 rotates only in the section of the turning restriction groove 81 so that the turning range R of the hinge shaft 50 is rotated. By limiting, thereby limiting the opening and closing range of the cover 20 is to enable a stable opening and closing of the cover (20). In addition, this configuration is due to the problem that the hinge shaft 50 is excessively rotated by an external factor before the hinge device 30 is mounted in the reservoir, and then the lid cover 20 after the hinge device 30 is mounted in the reservoir. It is also to prevent the problem of opening and closing of the problem.

Here, the present embodiment constitutes a rotation limiting means, in which the rotation limiting groove 81 is formed in the cover portion 43 of the housing 40 and the rotation limiting jaw 82 is formed in the hinge shaft 50. On the contrary, the rotation limiting groove 81 is formed on the outer surface of the hinge shaft 50 and the rotation limiting jaw 82 is formed on one side of the shaft engaging hole 44 of the cover 43. Will be.

The following describes the operation of the storage hinge device according to the present invention in this configuration.

When the user opens or closes the lid 20 of the reservoir, the hinge shaft 50 connected to the lid 20 rotates together with the lid 20, and the first shaft provided on the cam shaft 51 of the hinge shaft 50 is provided. The cam 53 also rotates. In this case, the movable member 60 has a force to move toward the first cam 53 by the elasticity of the pressure spring 70, and the second cam 62 of the movable member 60 is the first cam 53. Since the hinge shaft 50 is rotated (when the cover is opened and closed), the second cam 62 of the movable member 60 moves forward and backward in the longitudinal direction of the hinge shaft 50, so that the hinge shaft 50 is rotated. Press the first cam (53). In addition, the cover 20 coupled to the hinge shaft 50 is rotated in the opening or closing direction through the advancing and retracting operation of the second cam 62 having the pressing force, thereby enabling easy opening and closing of the cover 20. That is, as shown in Figure 3, when the lid 20 of the reservoir is located in the "open section", the hinge shaft 40 is to be rotated in the open direction, when located in the "closed section" to be rotated in the closed direction. Therefore, the lid 20 can be opened and closed easily.

In more detail, when the cover 20 of the reservoir is opened at a predetermined angle or more, and positioned in the “opening section” of FIG. 3, as illustrated in FIGS. 5 and 8, the opening guide surface of the inclined second cam 62 ( 64a and the opening guide surface 55a of the first cam 53 are in contact with each other, and in this state, the second cam 62 of the moving member 60 moves toward the first cam 53 while the first cam ( Since the opening guide surface 55a of the 53 is pressed, the hinge shaft 50 has a force to rotate in the opening direction of the cover 20, thereby easily opening the cover 20. At this time, if the elastic force of the pressure spring 70 is adjusted appropriately so that the force to rotate in the direction in which the hinge shaft 50 is opened and the force to close the cover 20 by its own weight, the cover 20 is shown in Figure 3 It can be kept stationary within the "open section" of. That is, the cover 20 can be stopped within the “opening section” where the opening guide surface 55a of the first cam 53 and the opening guide surface 64a of the second cam 62 are in contact with each other. In addition, the larger the section of the opening guide surface (55a, 64a) in contact with each other, the larger the section (opening section) that the user can freely stop the cover 20 during the opening and closing process of the cover 20.

On the other hand, when the cover 20 is opened below the predetermined angle and positioned in the “close section” of FIG. 3, as shown in FIGS. 6 and 9, the closing guide surface 64b and the first cam of the second cam 62 are located. Since the closing guide surface 55b of the 53 is in contact with each other, the elasticity of the pressure spring 70 does not affect the rotation of the hinge shaft 50. Therefore, the hinge shaft 50 rotates in the closing direction of the cover 20 due to the weight of the cover 20 in the "close section" range of the cover 20. That is, when the cover 20 is located in the “close section” of FIG. 3, the cover 20 is closed while rotating by itself.

As described in detail above, the storage hinge device according to the present invention can be connected to the main body and the cover in the state that the hinge device does not protrude to the outside of the main body through miniaturization, so that the appearance of the storage is not only beautiful but also the storage There is an effect to reduce the occupied space for the installation of, and because the structure is simpler than the conventional hinge device is easy to manufacture and install the effect.

In addition, the hinge device of the present invention has the effect of allowing the cover to be opened and closed stably because the rotation range of the hinge shaft is limited to correspond to the substantial opening and closing range of the cover through the rotational restriction groove and the rotational jaw.

1 is a cross-sectional view showing a lid mounting structure of a conventional kimchi storage.

Figure 2 is an exploded perspective view showing the appearance and cover mounting structure of the kimchi storage to which the present invention is applied.

Figure 3 is a cross-sectional view showing the internal structure and cover mounting structure of the kimchi storage applied to the present invention.

Figure 4 is an exploded perspective view showing the configuration of the hinge device of the storage room according to the present invention.

Figure 5 is a perspective view of the hinge device assembled state of the reservoir according to the present invention, showing the operation when the cover is opened.

Figure 6 is a perspective view of the hinge device assembly state of the reservoir according to the present invention, showing the operation when the cover is closed.

7 is a perspective view of a moving member of the storage hinge device according to the present invention.

8 is an exploded view showing the configuration of the first cam and the second cam of the storage hinge device according to the present invention, showing a state in which the cover is open.

9 is an exploded view showing the configuration of the first cam and the second cam of the storage hinge device according to the present invention, showing a closed state of the cover.

Explanation of symbols on the main parts of the drawings

10: main body, 20: cover,

30: hinge device, 40: housing,

41: body portion of the housing, 42: spring receiving portion of the housing,

43: cover part of the housing, 44: shaft coupling hole,

50: hinge shaft, 51: cam shaft portion,

52: extension, 53: first cam,

54: support jaw, 55: cam surface of the first cam,

56: lubrication groove, 60: moving member,

62: second cam, 64: cam surface of second cam,

70: pressurized spring, 81: rotation limited groove

82: limit of rotation.

Claims (4)

In the storage hinge for connecting the cover to cover the upper part of the main body, A housing fixed to any one of the main body and the cover; A hinge shaft rotatably coupled to the housing and having a cam shaft portion having a first cam on an outer surface thereof, and an extension portion having a predetermined length extending from the cam shaft portion to the outside of the housing to be fixed to the other one of the main body and the cover; A movable member coupled to an outer surface of the camshaft portion in a limited rotational direction and having a second cam facing the first cam; A pressing spring installed in the housing to press the moving member toward the first cam; In order to limit the range of rotation of the hinge shaft, at least one of the hinge shaft outer surface and the housing has a pivot limit groove formed in a rotational direction of the hinge shaft, and the other of the hinge shaft and the housing facing the pivot limit groove. Including a rotational jaw formed to enter the rotational restriction groove; The first cam and the second cam is hinged device for storage, characterized in that it has a triangular cam surface of the one surface and the other surface which are in contact with each other and the vertical surface and the inclined surface, respectively. The method of claim 1, The housing is coupled to the hollow body portion for receiving the movable member forward and backward, a spring receiving portion extending a predetermined length from the body portion to accommodate the pressure spring, the open end of the body portion and the extension portion passes through Includes a cover portion formed with a shaft coupling hole to The rotation limiting groove is formed on one side of the shaft coupling hole, the hinge limiter is formed for the storage hinge hinge device, characterized in that formed on the outer surface of the hinge shaft at a position corresponding to the rotation limiting groove. The method of claim 2, The camshaft portion of the hinge shaft is supported by one end thereof extending to the inner end of the spring accommodating portion so that the movement in the axial direction is limited, and a support jaw formed on the outer surface thereof is caught by the inner surface of the cover portion, and the pivot limit jaw is The hinge device for storage, characterized in that protrudes from one side of the support jaw to enter the rotational restriction groove. The method of claim 1, The cam surface has an opening guide surface which is formed to be inclined in a helical direction so that the hinge shaft can rotate in the opening direction of the cover by the pressing of the movable member when the cover is opened, and by the weight of the cover when the cover is closed. And a closing guide surface formed in the rotational direction of the hinge shaft so that the hinge shaft can rotate in the closing direction of the cover.