JP2006322700A - Hinge device for storage case and storage case having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further smoothly close a door while simplifying constitution. <P>SOLUTION: A hinge device for a storage case comprises a housing 30 fixed to one of a body 2 and the door 3; a first hinge shaft 10 and a second hinge shaft 20 rotatably connected to both end sides of the housing 30 to be fixed to the other of the body 2 and door 3; a cam driving part provided at the first hinge shaft 10 inside the housing 30; and a torsion spring 100 with one end fixed to the second hinge shaft 20 and with the other end fixed into the housing 30 so that the rotational resistance of the door 3 is increased when the door 3 is closed and that the torsion spring is returned to its original state when the door 3 is opened. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a storage hinge device and a storage device including the same, and more particularly, to a storage hinge device that has a simple structure and allows a door to be closed smoothly, and a storage device including the storage hinge device.

  Generally, the conventional kimchi storage has a structure in which the upper part of the main body is opened and closed, and in particular, the door is rotatably installed on the upper part of the main body and opened and closed.

  The kimchi storage has a main body having a storage chamber whose upper part is open, and a door that opens and closes the upper part of the storage room, so that the door is pivotably opened and closed between the main body and the door. A hinge device for connecting the main body and the door is provided.

  A conventional hinge device is disclosed in Patent Document 1. That is, the hinge device of the conventional kimchi refrigerator has a cylindrical housing fixed to the upper part of the main body, and both sides of the rear end of the door are connected to both ends of the housing in order to connect the rear end of the door and the main body. Two hinge units mounted on both ends of the housing to be pivotally connected, and shafts extending from the hinge units on both sides to be coupled to both sides of the rear end of the door It is out.

  The conventional storage hinge apparatus configured as described above includes a housing fixed to the main body and two hinge units attached to both ends of the housing. In addition, each hinge unit is provided with a hinge drive unit in a separate small housing, which increases the number of parts that make up the hinge device and increases manufacturing costs. On the other hand, two hinge units are manufactured separately. In this state, since these hinge units are installed on both sides of the housing, the manufacturing process becomes complicated.

Further, the conventional storage has a problem that when the door is located in the closed section, the door is heavier than the buffer function of the hinge device, and thus a large impact is generated when the door is closed.
Republic of Korea Registered Utility Model Publication No. 20-0298042

  The present invention has been made in order to solve the above-described problems, and has an object to provide a storage hinge device in which the configuration is simplified and the door is closed more smoothly, and a storage having the storage device. To do.

  In order to achieve the above object, a storage hinge apparatus according to the present invention includes a housing fixed to one of the main body and the door to rotatably connect the main body and the door; A first hinge shaft and a second hinge shaft rotatably coupled to both ends of the housing so as to be fixed to the other one of the main body and the door; and the first hinge shaft inside the housing A cam drive unit provided on the door; one end fixed to the second hinge shaft so as to increase the rotational resistance of the door during the closing operation of the door and to restore the original state during the opening operation of the door And a torsion spring having the other end fixed inside the housing.

  The cam drive unit includes a first cam provided on the first hinge shaft, a moving member having a second cam facing the first cam, and the moving member elastically moving the moving member toward the first cam. And a pressurizing spring for pressurizing.

  In addition, a rotation-preventing fixing member is provided in the housing on the second hinge shaft side in order to fix and connect the end portion of the torsion spring on the opposite side of the second hinge shaft. Features.

  In addition, the first cam and the second cam have valley-shaped and mountain-shaped cam surfaces, and the cam surface includes an inclined open guide surface and a substantially horizontal closed guide surface. And a leakage preventing member for preventing leakage of lubricating oil applied to each cam surface is provided on the outer surface of the first cam or the second cam.

  A shaft extending in the length direction of the housing is provided in the housing between the first hinge shaft and the second hinge shaft so that both ends thereof are coupled to the hinge shafts. The shaft is inserted through the cam drive unit and the torsion spring.

  In addition, both ends of the shaft are rotatably coupled to the hinge shafts.

  Further, both ends of the shaft are coupled to the hinge shafts in a state where rotation is limited.

  The storage according to the present invention includes: a main body having a storage chamber with an open top; a door that opens and closes the top of the main body, and the hinge device is fixed to any one of the main body and the door. A first hinge shaft and a second hinge shaft rotatably coupled to both ends of the housing so as to be fixed to the other one of the main body and the door; closing the door; One end is fixed to the second hinge shaft and the other end is fixed to the interior of the housing so that the rotational resistance of the door is increased during operation and the original state is restored when the door is opened. An elastic member; a fastening hole formed in a cover for covering the housing on the second hinge shaft side; an anti-rotation pin inserted into the fastening hole and restricting the rotation of the second hinge shaft; On the pin And a locking portion provided on the second hinge shaft so as to prevent rotation of the second hinge shaft, and the second hinge shaft is rotated so that the door is closed. In this state, the door is assembled to the main body.

  The present invention also relates to a storage hinge device that hinges a main body and a door, a housing, a first hinge shaft and a second hinge shaft that are rotatably installed at both ends of the housing, and the first hinge. A cam drive part provided inside the housing on the shaft side, and a damper part provided inside the housing on the second hinge shaft side in order to increase the rotational resistance of the door during the closing operation of the door, The cam drive unit is configured such that an operating section of the door includes a closing section that allows the door to be closed by its own weight, and a rotational force is applied to the first hinge shaft in an opening direction of the door so that the door is open. The damper portion is provided to include an opening section to be maintained, and the damper portion opens the door so that the second hinge shaft resists the weight of the door over the entire operation section of the door. Characterized in providing a rotational force to the second hinge axis.

  The storage hinge device according to the present invention includes one hinge unit, and the structure is simpler than that of a conventional hinge device including two hinge units. Costs and production costs are saved. Furthermore, since the door is smoothly closed by the buffering action of the damper portion, a large impact does not occur when the door is closed.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is an exploded perspective view illustrating a kimchi refrigerator to which the present invention is applied, and FIG. 2 is a cross-sectional view illustrating the kimchi refrigerator to which the present invention is applied. As shown in FIGS. 1 and 2, a kimchi storage made of a heat insulator includes a main body 2 in which a storage chamber 1 having an open top is formed, and a main body 2 for opening and closing the upper portion of the storage chamber 1. A door 3 is rotatably coupled to the upper portion.

  On the outer surface of the liner 1 a of the storage chamber 1, in order to cool the storage chamber 1, an evaporator 1 b formed by a normal refrigerant pipe and a normal electric power for aging Kimchi stored in the storage chamber 1 are used. A heater 1c formed by heat rays is installed, and a machine room 4 partitioned from the storage room 1 is formed on the lower side of the main body 2 so that a compressor 4a and the like are installed.

  The rear end portion of the door 3 is rotatably coupled to the upper portion of the main body 2 so that the door 3 is rotated through the hinge device 5. At this time, the hinge device 5 is fixed to the rear upper end of the main body 2, and hinge shafts 10 and 20 are rotatably provided at both ends thereof.

  On both sides of the rear end portion of the door 3, coupling portions 3 a coupled to the hinge shafts 10 and 20 are provided, and a cover member 3 b is fixed to the coupling portion 3 a.

  Therefore, the hinge shafts 10 and 20 provided at both ends of the hinge device 5 are disposed between the coupling portion 3a and the cover member 3b and are in a state where rotation is restricted. In this way, the door 3 is rotatably connected to the main body 2.

  As shown in FIGS. 3 to 5, the hinge device 5 has an outer shape, a housing 30 coupled to the upper part of the kimchi refrigerator main body 2, and each of the hinge devices 5 rotatably coupled to both ends of the housing 30. The pair of hinge shafts is provided with door fastening portions 11 and 21 which are extended to the inside of the housing 30 and fixed to the connecting portion 3a of the door 3 at the other end extended to the outside of the housing 30. 10 and 20. Hereinafter, these hinge shafts 10 and 20 are referred to as a first hinge shaft 10 and a second hinge shaft 20.

  Further, the hinge device 5 gives a rotational force to the first hinge shaft 10 so as to maintain the open / closed state of the door 3 depending on the opening angle of the door 3, and is provided in the housing 30 on the first hinge shaft 10 side. In order to increase the rotational resistance of the door 3 when the door 3 is closed, a cam drive unit and a damper portion provided in the housing 30 on the second hinge shaft 20 side are provided.

  The housing 30 of the hinge device 5 is open at both ends, and in order to accommodate the cam drive part and the damper part, a main body part 32 in which a housing space 31 is formed in the length direction of the housing 30, and the main body part 32 is provided at both open ends of the main body 32 and closes both ends of the main body 32. The shaft coupling holes 33a and 34a into which the door fastening portions 11 and 21 of the hinge shafts 10 and 20 are inserted are provided at the center. A pair of cover portions 33 and 34 is configured. Here, each cover part 33 and 34 is fixedly coupled to both ends of the main body part 32 through a plurality of fixing screws.

  The fixing plate 35 is provided integrally with the main body 32 in order to fix the housing 30 to the kimchi refrigerator main body 2, and the storage space 31 includes a first storage portion 31a in which a cam drive unit is stored and a damper. It is divided into a second accommodating part 31b in which the part is accommodated.

  Hereinafter, the structure of the first hinge shaft 10 and the cam drive unit will be described in detail. The first hinge shaft 10 extended inward of the first accommodating portion 31a is formed with a cam shaft portion 12 having a first cam 13 on the outer surface. The cam drive unit is coupled to the outer surface of the cam shaft portion 12 of the first hinge shaft 10 so as to be movable in a state where rotation is restricted, and includes a moving member 40 including a second cam 43 that contacts the first cam 13. The first elastic member 50 is configured to pressurize the moving member 40 toward the first cam 13. Here, a pressure spring is used for the first elastic member 50.

  A support member 60 for supporting the first elastic member 50 is provided in the first accommodating portion 31 a inside the moving member 40, and the first elastic member is provided at one end of the support member 60 on the first elastic member 50 side. A guide portion 61 to be inserted by a predetermined length is formed inside 50. Further, the first hinge shaft 10 is formed with a support protrusion 14 that is locked to the shaft coupling hole 33 a and supported on the inner surface of the cover portion 33.

  As shown in FIGS. 6 to 8, the moving member 40 moves along the inner surface of the first housing portion 31a, and is inserted into the cam shaft portion 12 of the first hinge shaft 10 at the center of the moving member 40. A through-hole 41 is formed.

  Further, a predetermined length in the length direction of the first hinge shaft 10 is provided on the inner surface of the main body portion 32 of the housing 30 on the first housing portion 31a side so that the moving member 40 smoothly moves in a state where the rotation is restricted. An extended guide rail 31a-1 (see FIG. 3) is formed, and the moving member 40 is formed with a guide groove 42 that is engaged with the guide rail 31a-1.

  The second cam 43 is integrally formed on one surface of the moving member 40 facing the first cam 13 in order to rotate the first hinge shaft 10 through the movement of the moving member 40, and the first elastic member 50 includes the first elastic member 50. The moving member 40 is installed to pressurize the moving member 40 toward the first cam 13 while being fitted to the outer surface of the cam shaft portion 12 of the hinge shaft 10. According to such a configuration, the cam surface 44 (see FIG. 6) of the second cam 43 of the moving member 40 is the cam surface 15 (see FIG. 7) of the first cam 13 formed on the cam shaft portion 12. Maintain pressure.

  The cam surface 15 of the first cam 13 and the cam surface 44 of the second cam 43 are formed to have a valley shape and a mountain shape so as to be engaged with each other.

  The cam surfaces 15 and 44 of the first cam 13 and the second cam 43 are coupled to the door 3 by the elasticity of the first elastic member 50 that pressurizes the moving member 40 when the door 3 is opened at a predetermined angle or more. Opening guide surfaces 15 a and 44 a are formed so as to be inclined in a spiral manner so that one hinge shaft 10 rotates in the opening direction of the door 3. According to such a configuration, when the door 3 is opened at a predetermined angle or more, a rotational force acts on the first hinge shaft 10 in the opening direction of the door 3, and the opened state of the door 3 is maintained.

  In addition, the cam surfaces 15 and 44 of the first and second cams 13 and 43 are arranged so that the first hinge shaft 10 coupled to the door 3 is connected to the door 3 when the door 3 is open at a predetermined angle or less during the door 3 closing process. Closed guide surfaces 15b and 44b formed in the rotation direction of the first hinge shaft 10 are provided so as to rotate in the closing direction of the door 3 by the weight of the door 3. According to such a configuration, in the state where the closing guide surface 15b of the first cam 13 and the closing guide surface 44b of the second cam 43 are in contact with each other, the elasticity of the first elastic member 50 causes the rotation of the first hinge shaft 10. The door 3 is closed by its own weight.

  Further, the cam surfaces 15, 44 do not constitute the closing guide surfaces 15b, 44b, but the end of the opening guide surface 15a on the closing guide surface 15b side and the end of the opening guide surface 44a on the closing guide surface 44b side. The door 3 may be closed by its own weight while the parts are supported by each other.

  In order to smoothly slide between the cam surfaces 15 and 44 of the first cam 13 and the second cam 43, the cam surfaces 15 and 44 of the first cam 13 and the second cam 43 are lubricated with grease or the like. Although the oil is applied, a cylindrical leakage prevention member 70 is provided outside the second cam 43 in order to prevent the lubricating oil applied to the cam surfaces 15 and 44 from leaking outside the cams 13 and 43. (See FIGS. 3 to 5).

  The leakage prevention member 70 is press-fitted into the outer surface of the second cam 43, and the release guide surface 15a of the cam surface 15 of the first cam 13 and the release guide surface 44a of the cam surface 44 of the second cam 43 are in contact with each other. The first cam 13 is provided inside. On the other hand, the leakage preventing member 70 may be provided on the outer surface of the first cam 13 and accommodate the second cam 43 therein.

  As shown in FIGS. 3 to 5, the second hinge shaft 20 is formed at the opposite end of the door fastening portion 21 that extends into the second housing portion 31 b of the housing 30, and the shaft coupling hole of the cover portion 34. The support protrusion 22 is supported by the inner surface of the cover part 34 by being locked to the cover 34a. The damper portion installed in the second accommodating portion 31b of the housing 30 has one end for connecting the fixing member 80 supported by the support member 60 of the cam driving portion and the fixing member 80 and the second hinge shaft 20. Is inserted into the center side of the fixing member 80 and the other end is rotatably inserted into the center side of the second hinge shaft 20, and one end is fixed in a state of being wound around the outside of the guide rod 90. A second elastic member 100 fixed to the member 80 and having the other end fixed to the second hinge shaft 20.

  A first insertion groove 81 and a second insertion groove 22a into which both end portions of the guide rod 90 are inserted are formed at the center portions of the fixing member 80 and the second hinge shaft 20, respectively. Here, a torsion spring is used for the second elastic member 100, but the present invention is not limited to this, and various modifications can be made as necessary.

  Further, in order to prevent the fixing member 80 from rotating inside the second housing portion, the inner surface of the main body 32 of the housing 30 on the fixing member 80 side is prevented from being rotated by a predetermined length in the length direction of the housing 30. A protrusion 31b-1 (see FIG. 3) is formed, and the fixing member 80 is formed with a rotation prevention groove 82 that is engaged with the rotation prevention protrusion 31b-1.

  The guide rod 90 guides the second elastic member 100 and may be formed integrally with the fixing member 80 or the second hinge shaft 20 unlike the present embodiment. Further, when the guide rod 90 is formed integrally with the fixing member 80 so that the second elastic member 100 is twisted, an end portion on the second hinge shaft 20 side is rotatably inserted into the second hinge shaft 20. If it is formed integrally with the second hinge shaft 20, it should be provided to rotate together with the second hinge shaft 20.

  When the door 3 rotates from the open state to the closed state, the damper portion transmits the rotational resistance generated by the torsional force of the second elastic member 100 to the door 3 through the second hinge shaft 20 to reduce the rotational speed of the door 3. By doing so, the door 3 is smoothly closed.

  On the other hand, when the door 3 rotates from the closed state to the open state, the damper portion causes the second hinge shaft 20 of the door 3 to move by the restoring force of the second elastic member 100 restored from the twisted state to the original state. There is also an advantage that the opening force of the door 3 is increased by rotating in the opening direction.

  That is, the second elastic member 100 includes a main body 101 wound around the guide rod 90, and first and second fixing portions 102 and 103 provided at both ends of the main body 101, respectively. The first fixing portion 102 is fixed to a first fixing groove 83 provided adjacent to the center portion of the fixing member 80, and the second fixing portion 103 is provided adjacent to the center portion of the second hinge shaft 20. It is fixed to the second fixing groove 22b. Further, the second elastic member 100 is provided so as not to be twisted when the door 3 is opened but to be twisted when the door 3 is closed.

  Accordingly, when the opened door 3 is rotated in the closing direction, the second hinge shaft 20 rotates, and the second fixing portion 103 of the second elastic member 100 rotates together with the second hinge shaft 20. Thus, when the second hinge shaft 20 is rotated, the second elastic member 100 is twisted because the first fixing portion 102 of the second elastic member 100 fixed to the fixing member 80 maintains the fixed state. The torsional force of the second elastic member 100 increases the rotational resistance of the door 3 so that the door can be closed smoothly.

  On the other hand, when the door 3 in the closed state is rotated in the opening direction, the second hinge shaft 20 is rotated in the opening direction of the door 3 by the restoring force of the twisted second elastic member 100. As a result, the door 3 can be easily opened with less external force.

  In addition, the hinge device 5 is installed to connect the door 3 and the main body 2 more stably in a state where the door 3 is closed so as to be supported on the upper surface of the main body 2. Therefore, the hinge device 5 is installed in a state where the second hinge shaft 20 is rotated in the opposite direction to the opening direction of the door 3 and the second elastic member 100 is twisted. At this time, the door of the second hinge shaft 20 is installed. In the process of coupling the fastening portion 21 to the coupling portion 3a on the door 3 side, the second hinge shaft 20 rotates opposite to the restoring direction of the second elastic member by the restoring force of the twisted second elastic member 100. As a result, it becomes difficult to couple the door fastening portion 21 of the second hinge shaft 20 to the coupling portion 3 a of the door 3.

  In order to solve the above problem, as shown in FIG. 9, the fastening hole 34 b is formed adjacent to the shaft coupling hole 34 a of the cover portion 34 fixedly coupled to one end of the housing 30. And inserted into the housing 30 through the fastening hole 34b. The supporting projection 22 of the second hinge shaft 20 is formed with a locking portion 22c that is locked by a rotation prevention pin 110 inserted into the housing 30 through the fastening hole 34b and prevents the rotation of the second hinge shaft 20. Is done.

  With the second hinge shaft 20 rotated in one direction so that the second elastic member 100 is twisted, the anti-rotation pin 110 is inserted into the housing 30 through the fastening hole 34b and inserted into the housing 30. When the locking portion 22c is locked by the end of the rotation preventing pin 110, the second hinge shaft 20 does not rotate in the restoring direction of the second elastic member 100, and the second elastic member 100 The twisted state can be maintained.

  In the present embodiment, the locking portion 22c is formed in a groove shape so that the end portion of the rotation prevention pin 110 can be inserted. As long as it is within the range, it may be formed in a protruding shape or the same hole shape as the fastening hole 34b of the cover portion 34.

  In addition, the rotation prevention pin 110 may be formed by a cover member after the door fastening portion 21 of the second hinge shaft 20 is inserted into the coupling portion 3a of the door 3 and before the cover member 3b and the coupling portion 3a are fastened. It is removed from the cover part 34 so as not to hinder the fastening between the 3b and the coupling part 3a. As a result, after the door 3 and the main body 2 are connected, the second hinge shaft 20 is rotated in one direction or in the opposite direction by the opening / closing operation of the door 3.

  Hereinafter, the operation of the storage hinge apparatus according to the present invention configured as described above will be described.

  When the user opens and closes the door 3 of the Kimchi refrigerator, the first hinge shaft 10 and the second hinge shaft 20 rotate together with the door 3. At this time, the door 3 is easily opened and closed by the rotational force of the first hinge shaft 10 generated through the cam drive unit.

  That is, when the first hinge shaft 10 rotates, the first cam 13 provided on the first hinge shaft 10 also rotates. At this time, the moving member 40 moves toward the first cam 13 by the elasticity of the first elastic member 50. Since the second cam 43 of the moving member 40 is in contact with the first cam 13 when the first hinge shaft 10 rotates in the opening / closing direction of the door 3, The cam 43 pressurizes the first cam 13 of the first hinge shaft 10 while moving along the length direction of the first hinge shaft 10. Therefore, the door 3 can be easily opened and closed by the relationship between the frictional force generated between the first cam 13 and the second cam 43 by the pressure applied by the first elastic member 50 and the weight of the door 3. .

  More specifically, when the door 3 of the kimchi refrigerator is opened by a predetermined angle or more and the door is located in the open section shown in FIG. 2, the second cam 43 inclined as shown in FIGS. The open guide surface 44a and the open guide surface 15a of the inclined first cam 13 are in contact with each other. In this state, the second cam 43 of the moving member 40 pressurizes the open guide surface 15a of the first cam 13 while moving toward the first cam 13, so that a rotational force is applied to the first hinge shaft 10 and the first cam 13 is pressed. As the hinge shaft 10 is rotated in the opening direction of the door 3, the door 3 is easily opened. Moreover, the elastic force of the 1st elastic member 50 is adjusted appropriately, the rotational force given so that the 1st hinge axis | shaft 10 may rotate in the opening direction of the door 3, and the closing force given to the door 3 by the dead weight of the door 3 Are substantially the same, the door 3 can also maintain a stopped state in the open section.

  When the opening angle of the door 3 is equal to or smaller than the predetermined angle and the door 3 is located in the closing section shown in FIG. 2, the closing guide surface of the second cam 43 is shown in FIGS. Since 44b and the closing guide surface 15b of the first cam 13 are in contact with each other, the elasticity of the first elastic member 50 does not affect the rotation of the first hinge shaft 10. Therefore, in the range of such a closed section, the door 3 is closed by the first hinge shaft 10 rotating in the closing direction of the door 3 by its own weight.

  When the door 3 is closed as described above, the rotational resistance of the second hinge shaft 20 is increased by the damper portion, and the door 3 is smoothly closed.

  That is, when the opened door 3 is rotated in the closing direction, the second hinge shaft 20 rotates, and the second fixing portion 103 of the second elastic member 100 rotates together with the second hinge shaft 20. As described above, when the second hinge shaft 20 rotates, the second elastic member 100 is twisted while the first fixing portion 102 of the second elastic member 100 fixed to the fixing member 80 maintains the fixed state. The rotational resistance of the door 3 is increased by the torsional force of the second elastic member 100, and the door 3 is smoothly closed.

  On the other hand, when the closed door 3 is rotated in the opening direction, the second hinge shaft 20 is rotated in the opening direction of the door 3 by the restoring force of the twisted second elastic member 100. As a result, the door 3 is more It is easily opened with little external force.

  As described above, the storage hinge device 5 according to the present invention includes one hinge unit, and the configuration is simplified as compared with a conventional hinge device including two hinge units. It becomes easy. Furthermore, the door 3 is smoothly closed by the buffering action of the damper portion, and a large impact is not generated when the door 3 is closed.

  FIG. 10 is an exploded perspective view illustrating a configuration of a damper in the storage hinge device according to the second embodiment of the present invention. FIG. 11 is a configuration of the damper in the storage hinge device according to the second embodiment of the present invention. FIG. 6 is a cross-sectional view showing the twisted state of the second elastic member. Instead of the torsion spring, a torsion bar 100 ′ made of an elastic material is used for the second elastic member of the storage hinge device according to the second embodiment.

  The torsion bar 100 ′ is provided such that first and second fixing portions 102 ′ and 103 ′ formed at both ends are coupled to the fixing member 80 and the central portion of the second hinge shaft 20, and the second hinge shaft The guide rod 90 for guiding the second elastic member between 20 and the fixing member 80 is removed. At this time, the first and second fixing portions 102 ′ and 103 ′ are formed with flat portions 102′a and 103′a, and the fixing member 80 and the second hinge shaft 20 are provided with the fixing member 80 and the second hinge. In order to prevent rotation of the torsion bar 100 ′ relative to the shaft 20, first and second fixing grooves 83 ′ and 22 b ′ are formed corresponding to the first and second fixing portions 102 ′ and 103 ′. . As a result, the torsion bar 100 ′ is twisted by the rotation of the second hinge shaft 20.

  FIG. 12 is an exploded cross-sectional view illustrating a structure of a storage hinge device according to a third embodiment of the present invention, and FIG. 13 is a cross-sectional view illustrating a structure of a storage hinge device according to a third embodiment of the present invention. is there.

  A shaft 200 extending in the length direction of the housing 30 and having both ends coupled to the first and second hinge shafts 10 and 20 is provided inside the housing 30.

  As compared with the first embodiment, the cam shaft portion 12 is not formed on the first hinge shaft 10, and the first cam 13 is formed integrally on one surface of the first hinge shaft 10. On the other hand, the hinge device according to the third embodiment is provided with a support member 60 ′ without the guide portion 61, and the first cam 13, the fixing member 60 ′, and the support member 80 ′ with the guide rod 90 removed. A through hole into which the shaft 200 is inserted is formed in the center portion. When the shaft 200 is inserted through the cam drive unit and the central part of the damper, the components inside the housing 30 are stably installed on the outer periphery of the shaft 200. At this time, the shaft 200 inside the first hinge shaft 10 serves as the cam shaft portion 12 of the first embodiment to guide the movement of the moving member 40, and the shaft 200 inside the second hinge shaft 20 is The second elastic member 100 is guided by performing the role of the guide rod 90 of the first embodiment.

  Here, both ends of the shaft 200 are rotatably coupled to the first and second hinge shafts 10 and 20, or the first and second hinge shafts in a state where the rotation of the shaft 200 is restricted. 10 and 20 are provided so that the rotation of the door 3 is uniformly transmitted to the hinge shafts 10 and 20.

  In addition, there is at least one outer periphery of the shaft 110 between the support member 60 ′ for supporting one end of the first elastic member 50 and the fixing member 80 ′ for fixing one end of the second elastic member 100. The distance maintaining member 120 is installed so that it can be removed, and the tension of the first elastic member 50 and the second elastic member 100 is adjusted without changing the length of the support member 60 ′ and the fixing member 80 ′. It is preferable to be provided.

  The storage hinge device according to the second and third embodiments is the same as the storage hinge device according to the first embodiment except for the structure and the operation and effect are the same.

It is the disassembled perspective view which showed the external shape and door mounting structure of the kimchi refrigerator to which this invention was applied. It is sectional drawing which showed the internal structure and door mounting structure of the kimchi refrigerator to which this invention was applied. It is the disassembled perspective view which showed the structure of the hinge apparatus for storages by 1st Embodiment of this invention. It is sectional drawing which showed the structure of the hinge apparatus for storages by 1st Embodiment of this invention, and has shown the closed state of the door. It is sectional drawing which showed the structure of the hinge apparatus for storage by 1st Embodiment of this invention, and has shown the open state of the door. It is the perspective view which showed the moving member of the hinge apparatus for stores by this invention. It is the expanded view which showed the structure of the 1st cam of the hinge apparatus for storages by this invention, and a 2nd cam, and has shown the open state of the door. It is the expanded view which showed the structure of the 1st cam of the hinge apparatus for stores by this invention, and the 2nd cam, and has shown the closed state of the door. FIG. 6 is an exploded perspective view illustrating a coupling structure of an anti-rotation pin coupled to a second hinge shaft in the storage hinge device according to the present invention. It is the disassembled perspective view which showed the structure of the damper in the hinge apparatus for storage by 2nd Embodiment of this invention. It is sectional drawing which showed the structure of the damper in the hinge apparatus for stores by 2nd Embodiment of this invention, and has shown the state by which the 2nd elastic member was twisted. It is the exploded sectional view showing the structure of the storage hinge device by a 3rd embodiment of the present invention. It is sectional drawing which showed the structure of the hinge apparatus for storage by 3rd Embodiment of this invention.

Explanation of symbols

10 first hinge shaft 13 first cam 20 second hinge shaft 30 housing 40 moving member 43 second cam 50 first elastic member 60 support member 70 leakage prevention member 80 fixing member 90 guide rod 100 second elastic member 110 rotation prevention pin

Claims (20)

In order to connect the main body and the door in a pivotable manner,
A housing fixed to any one of the main body and the door;
A first hinge shaft and a second hinge shaft that are rotatably coupled to both ends of the housing so as to be fixed to the other one of the main body and the door;
A cam drive provided on the first hinge shaft inside the housing;
One end is fixed to the second hinge shaft and the other end of the housing is increased so as to increase the rotational resistance of the door during the door closing operation and to be restored to the original state during the door opening operation. A torsion spring fixed inside;
A storage hinge device comprising: The cam drive unit includes a first cam provided on the first hinge shaft;
A moving member having a second cam facing the first cam;
The storage hinge apparatus according to claim 1, further comprising a pressing spring for elastically pressing the moving member toward the first cam.   The storage hinge apparatus according to claim 2, wherein the second cam is integrally formed on a side surface of the moving member.   A fixing member that is prevented from rotating is provided in the housing on the second hinge shaft side in order to fix and connect the end of the torsion spring on the opposite side of the second hinge shaft. The storage hinge apparatus according to claim 1. A body having a storage chamber open at the top;
A door for opening and closing the upper portion of the main body;
A hinge device; a housing fixed to any one of the main body and the door;
A first hinge shaft and a second hinge shaft that are rotatably coupled to both ends of the housing so as to be fixed to the other one of the main body and the door;
One end is fixed to the second hinge shaft and the other end of the housing is increased so that the rotational resistance of the door is increased during the door closing operation and restored to the original state during the door opening operation. An elastic member fixed inside;
A fastening hole formed in a cover for covering the housing on the second hinge shaft side;
An anti-rotation pin inserted into the fastening hole and restricting the rotation of the second hinge shaft;
A locking portion provided on the second hinge shaft so as to be locked to the rotation prevention pin to prevent the rotation of the second hinge shaft;
The storage is characterized in that the door is assembled to the main body in a state where the second hinge shaft is rotated so that the door is closed.   The first cam and the second cam have valley-shaped and mountain-shaped cam surfaces, and the cam surface includes an open guide surface formed to be inclined and a closed guide surface formed substantially horizontally. The storage hinge apparatus according to claim 2, wherein the storage hinge apparatus is included.   The storage hinge apparatus according to claim 6, wherein a leakage preventing member is provided on an outer surface of the first cam or the second cam to prevent the lubricating oil applied to each cam surface from leaking. .   A shaft extending in the length direction of the housing is provided in the housing between the first hinge shaft and the second hinge shaft so that both ends thereof are coupled to the hinge shafts. The storage hinge apparatus according to claim 1, wherein the shaft is inserted through the cam drive unit and a torsion spring.   9. The storage hinge apparatus according to claim 8, wherein both ends of the shaft are rotatably coupled to the hinge shafts.   9. The storage hinge apparatus according to claim 8, wherein both ends of the shaft are coupled to the hinge shafts in a state where rotation is limited. In a storage room comprising a main body having a storage chamber with an open upper part, a door that opens and closes the upper part of the main body, and a hinge device that rotatably connects the door and the main body.
The hinge device includes a housing fixed to any one of the main body and the door;
A first hinge shaft and a second hinge shaft that are rotatably coupled to both ends of the housing so as to be fixed to the other one of the main body and the door;
One end is fixed to the second hinge shaft and the other end of the housing is increased so as to increase the rotational resistance of the door during the door closing operation and to be restored to the original state during the door opening operation. A torsion spring fixed inside;
A storage characterized by containing. And further including a cam driving portion provided on the first hinge shaft inside the housing,
The cam drive unit is
A first cam provided on the first hinge shaft;
A moving member having a second cam facing the first cam;
The storage according to claim 11, further comprising a pressing spring for elastically pressing the moving member toward the first cam.   A fixing member that is prevented from rotating is provided in the housing on the second hinge shaft side in order to fix and connect the end portion of the torsion spring on the opposite side of the second hinge shaft. The storehouse according to claim 11. In the storage hinge device that hinges the main body and the door,
A housing;
A first hinge shaft and a second hinge shaft rotatably installed at both ends of the housing;
A cam driving portion provided inside the housing on the first hinge shaft side;
A damper provided inside the housing on the second hinge shaft side in order to increase the rotational resistance of the door during the closing operation of the door;
The cam drive unit is
The door operating section is a closed section allowing the door to be closed by its own weight;
A rotational force is applied to the first hinge shaft in the opening direction of the door, and the first hinge shaft includes an opening section that maintains an open state of the door;
The damper portion applies a rotational force to the second hinge shaft in an opening direction of the door so that the second hinge shaft resists the weight of the door over the entire operation section of the door. Hinge device.   15. The storage hinge according to claim 14, wherein the damper part includes a torsion spring, one end of the torsion spring is fixed to the second hinge shaft, and the other end is fixed to the inside of the housing. apparatus. When the door is opened at a predetermined angle or more, a rotational force in the opening direction is applied to the first hinge shaft to maintain the door open state,
15. The storage hinge apparatus according to claim 14, wherein when the door is opened at a predetermined angle or less, the first hinge shaft is rotated in the door closing direction by the weight of the door.   15. The storage hinge according to claim 14, wherein the damper part includes a torsion bar, one end of the torsion bar being fixed to the second hinge shaft, and the other end being fixed to the inside of the housing. apparatus.   A fixing member that is prevented from rotating is provided in the housing on the second hinge shaft side in order to fix and connect the end portion of the torsion bar on the opposite side of the second hinge shaft. The storage hinge apparatus according to claim 17.   The storage device according to claim 18, wherein the torsion bar includes first and second fixing portions formed at both ends so as to be respectively fitted to the center portion of the fixing member and the second hinge shaft. Hinge device.   The first and second fixing portions include a plane portion, and the fixing member and the second hinge shaft are prevented from rotating relative to the fixing member and the second hinge shaft, and the torsion bar is The storage hinge according to claim 19, further comprising first and second fixing grooves corresponding to the planar portions of the first and second fixing portions, respectively, so as to be twisted by rotation of the second hinge shaft. apparatus.

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