WO2020054471A1 - Door opening-closing mechanism and refrigerator - Google Patents

Door opening-closing mechanism and refrigerator Download PDF

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Publication number
WO2020054471A1
WO2020054471A1 PCT/JP2019/034325 JP2019034325W WO2020054471A1 WO 2020054471 A1 WO2020054471 A1 WO 2020054471A1 JP 2019034325 W JP2019034325 W JP 2019034325W WO 2020054471 A1 WO2020054471 A1 WO 2020054471A1
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WO
WIPO (PCT)
Prior art keywords
door
refrigerator
self
compartment door
hinge pin
Prior art date
Application number
PCT/JP2019/034325
Other languages
French (fr)
Japanese (ja)
Inventor
佐藤　康雄
Original Assignee
シャープ株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Priority to JP2020545921A priority Critical patent/JP7437309B2/en
Priority to CN201980057635.6A priority patent/CN112654826B/en
Publication of WO2020054471A1 publication Critical patent/WO2020054471A1/en
Priority to JP2023200419A priority patent/JP2024020549A/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D7/00—Hinges or pivots of special construction
    • E05D7/02—Hinges or pivots of special construction for use on the right-hand as well as the left-hand side; Convertible right-hand or left-hand hinges
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/02—Doors; Covers

Definitions

  • the present disclosure relates to a door opening / closing mechanism capable of changing the left / right opening of a door, and a refrigerator including a door having the door opening / closing mechanism.
  • Patent Literature 1 discloses an opening / closing structure of a refrigerator door that can change the left / right opening of the refrigerator door.
  • the opening / closing structure of the refrigerator door is provided on each of the left and right sides of the refrigerator main body, the door having the mounting holes on the right and left sides thereof, and overlaps the mounting hole above the mounting hole.
  • a hinge holding member having a through hole, a hinge pin that is inserted into the through hole from above the through hole and is removably inserted into the mounting hole, and rotatably attaches the door to the refrigerator main body; And a lower hinge portion which is disposed on the lower side and which rotatably attaches the door to the refrigerator main body around an axis of the hinge pin.
  • the left and right mounting holes of the door and the hinge pin inserted into the through holes of the left and right hinge holding members are pulled out, and the hinge pin is attached to the left and right other mounting holes of the door and the left and right hinge holding portions.
  • a magnet is attached to the packing portion of the door to increase the self-closing force of the door when the user performs the operation of closing the door.
  • the door self-closing force is insufficient with only the configuration in which the door self-closing force is applied by the magnet.For example, when a heavy object is stored in the door, the door cannot be closed due to the insufficient self-closing force. May not be available.
  • an object of the present disclosure is to provide a configuration in which the door can be closed more reliably and easily when performing an operation of closing the door, in which the door can be opened left and right.
  • a door opening and closing mechanism includes a main body, at least one door, and a hinge.
  • the hinge portion is configured to be replaceable on the left and right sides of the main body portion, and the hinge portion includes a shaft portion and a self-closability improving member that promotes a self-closing force of the door.
  • the arrangement of the self-closability improving member is changed between when it is attached to the left side of the main body and when it is attached to the right side of the main body.
  • the self-closability improving member may have a configuration in which the arrangement is changed by rotating the self-closability improving member in the horizontal direction at the time of changing the right and left.
  • the self-closability improving member may have a configuration in which the arrangement manner is changed by inverting the self-closability improving member in a vertical direction at the time of right and left replacement.
  • a refrigerator includes at least two doors in a vertical direction.
  • at least one of the at least two doors has the door opening / closing mechanism according to one aspect of the present invention.
  • each of the at least two doors may have the door opening / closing mechanism.
  • an intermediate hinge portion is disposed as the hinge portion between two adjacent ones of the at least two doors.
  • the shaft portion of the intermediate hinge portion serves as a rotation axis for opening and closing both of the two adjacent doors, and the self-closability improving member of the intermediate hinge portion is located on the upper side of the two adjacent doors. The self-closing force of the door may be promoted.
  • a space holding unit that secures a space between the two doors may be provided between two adjacent ones of the at least two doors.
  • the door in a door that can be changed from left to right, the door can be more reliably and easily closed when the door is closed.
  • FIG. 3 is a perspective view illustrating a main body of the refrigerator illustrated in FIG. 2. It is the perspective view which looked at the main-body part of the refrigerator shown in FIG. 3 from the upper side. It is a perspective view showing the state where the refrigerator compartment door of the refrigerator concerning a 1st embodiment was opened from the right side.
  • FIG. 6 is a perspective view illustrating a main body of the refrigerator illustrated in FIG. 5. It is the perspective view which looked at the main-body part of the refrigerator shown in FIG. 6 from the upper side.
  • FIG. 2 is a perspective view showing a hinge pin and a spring receiving member provided in the refrigerator according to the first embodiment. It is sectional drawing which shows a mode that a refrigerator compartment door is attached to the main-body part of the refrigerator concerning 1st Embodiment. It is sectional drawing which expands and shows the periphery of the middle hinge part of the refrigerator shown in FIG.
  • FIG. 3 is a diagram illustrating a configuration around an intermediate hinge portion when the refrigerator compartment door of the refrigerator according to the first embodiment is closed.
  • FIG. 1 shows an appearance of a refrigerator 1 according to the present embodiment.
  • FIG. 2 shows the appearance of the refrigerator 1 with each door open.
  • the refrigerator 1 mainly includes a main body 10, a refrigerator compartment door 11 and a freezer compartment door 12.
  • the outer shape of the main body 10 is formed by a heat insulating box.
  • Refrigerator 1 has refrigerator room 2 in the upper stage.
  • a refrigerator compartment door 11 is attached to an opening at the front of the refrigerator compartment 2.
  • a freezing room 3 is arranged below the refrigerator 1.
  • a freezer compartment door 12 is attached to an opening at the front of the freezer compartment 3.
  • the refrigerator compartment door 11 and the freezer compartment door 12 have a door opening / closing mechanism as an example of the present invention.
  • the left and right opening and closing directions of the door can be changed by replacing parts (specifically, hinge pins 31, 41, 61, etc.) constituting the hinge portion.
  • each storage room in the refrigerator 1 are not limited to those described above.
  • the configuration and arrangement of each storage room can be changed as appropriate according to the capacity and use of the refrigerator.
  • the surface on which the door is provided is the front (front) of the refrigerator 1.
  • each surface of the main body 10 of the refrigerator 1 is referred to as an upper surface, a side surface, a rear surface, and a bottom surface based on a position existing when the refrigerator 1 is installed in a normal state with reference to the front surface.
  • the side located on the left is called the left side of the refrigerator 1 (or the refrigerator compartment door 11)
  • the side located on the right is the right side of the refrigerator 1 (or the refrigerator compartment door 11).
  • FIG. 1 and 2 show a state where the refrigerator door 11 and the freezer door 12 are opened and closed from the left side. In this state, each hinge pin (shaft) 31, 41, 61 is attached to the right end of the refrigerator 1.
  • FIG. 5 shows a state where the refrigerator compartment door 11 and the freezer compartment door 12 are opened and closed from the right side. In this state, each hinge pin 31, 41, 61 is attached to the left end of the refrigerator 1.
  • the refrigerator 1 when the doors 11 and 12 are attached to the main body 10 in a state where the hinge pins 31, 41 and 61 are arranged on the right side of the main body 10, the refrigerator 1 according to the present embodiment has the left end. It is configured to open and close each door 11 and 12 from the unit.
  • the doors 11 and 12 are attached to the main body 10 in a state where the hinge pins 31, 41 and 61 are disposed on the left side of the main body 10, the doors 11 and 12 are opened and closed from the right end. Become.
  • FIGS. 3, 4, 6, and 7 show the appearance of the main body 10 with the doors 11 and 12 removed from the refrigerator 1.
  • FIG. 3 and 4 show the configuration of the main body 10 when the refrigerator compartment door 11 and the freezer compartment door 12 are both opened and closed from the left side.
  • 6 and 7 show the configuration of the main body 10 when the refrigerator compartment door 11 and the freezer compartment door 12 are both opened and closed from the right side.
  • FIG. 8 shows the configuration of the bottom portion of the refrigerator compartment door 11.
  • FIG. 9 shows an exploded state of each component constituting the middle hinge portion of the refrigerator 1.
  • FIG. 10 shows a state in which a spring receiving member (self-closing property improving member) 42 is attached to the intermediate hinge pin 41.
  • the refrigerator compartment door 11 has a door upper member 21 attached to the upper part of the door body, and a door lower member 22 attached to the lower part of the door body.
  • the freezer compartment door 12 has a door upper member 23 attached to the upper part of the door body, and a door lower member 24 attached to the lower part of the door body.
  • holes are formed near the left and right ends, into which the hinge pins 31, 41, or 61 are inserted.
  • hinge pin 31 Since the hinge pin 31 is attached to the upper part of the main body 10, it is also referred to as an upper hinge pin.
  • the hinge pin 41 is also called an intermediate hinge pin because it is attached to an intermediate portion of the main body 10 (the partition 10a in the present embodiment).
  • the hinge pin 61 Since the hinge pin 61 is attached to the lower part of the main body 10, it is also called a lower hinge pin.
  • Each hinge pin 31, 41, 61 serves as a pivot for the refrigerator compartment door 11 and the freezer compartment door 12.
  • the main body 10 is provided with a partition 10 a for partitioning between the refrigerator compartment 2 and the freezer compartment 3.
  • a cover member 32 is attached in front of the upper surface of the main body 10.
  • An upper member 33 is provided below the cover member 32 (see FIG. 11). In the upper member 33, holes 34 into which the upper hinge pin 31 is inserted are formed on both left and right sides.
  • Bearings 40a and 40b into which the hinge pin 41 is inserted are provided at the frontage of the partition 10a.
  • the bearing 40 a is provided near the right end of the main body 10.
  • the bearing 40 b is provided near the left end of the main body 10.
  • Bearings 60a and 60b into which the hinge pins 61 are inserted are provided at the frontage of the lower end of the main body 10.
  • the bearing 60a is provided near the right end of the main body 10.
  • the bearing 60b is provided near the left end of the main body 10.
  • the bearing part 40a is composed of a support member 44a and a cover member 45a.
  • the bearing portion 40b includes a support member 44b and a cover member 45b.
  • the bearing portion 40a and the bearing portion 40b have a left-right symmetric configuration.
  • each bearing portion 40 a and 40 b has a projecting portion 46 projecting forward from the refrigerator 1.
  • the overhang portion 46 has a hole 47 into which the intermediate hinge pin 41 is inserted. Further, a second hole 48 is formed in the overhang portion 46 at an obliquely rear side of the hole 47.
  • the fixing pin 42d (see FIG. 10) of the spring receiving member (self-closing property improving member) 42 is inserted into the second hole 48.
  • the bearings 60a and 60b have the same configuration as the bearings 40a and 40b, respectively. That is, the bearing portion 60a includes the support member 64a and the cover member 65a. The bearing portion 60b includes a support member 64b and a cover member 65b. The bearing part 60a and the bearing part 60b have a left-right symmetric configuration.
  • each of the bearings 60 a and 60 b is provided with an overhang 66 that extends toward the front of the refrigerator 1.
  • the overhang portion 66 has a hole 67 into which the lower hinge pin 61 is inserted.
  • a second hole 68 is formed in the overhang portion 66 at an obliquely rear side of the hole 67.
  • the fixing pin (not shown) of the spring receiving member (self-closing property improving member) 62 is inserted into the second hole 68.
  • hinge assist members 81a and 81b are provided on the bottom surface of the refrigerator compartment door 11.
  • the hinge assisting members 81a and 81b are attached to the door lower member 22.
  • the hinge auxiliary member 81a is attached to the right end of the door lower member 22.
  • the hinge auxiliary member 81b is attached to the left end of the door lower member 22.
  • the hinge assisting members 81a and 81b have a symmetric configuration.
  • the holes 27 into which the intermediate hinge pin 41 is inserted are provided in the hinge assisting members 81a and 81b.
  • a spring portion 82 is formed on the hinge assisting members 81a and 81b in order to smoothly open and close the refrigerator compartment door 11.
  • the spring portion 82 is formed in a leaf spring shape having elasticity or flexibility.
  • a projection 83 projecting downward is provided at a distal end portion of the spring portion 82.
  • the spring portion 82 is elastically deformed upward when the projection 83 rides on the ridge shape A (see FIGS. 9 and 10) of the first rod portion 42a of the spring receiving member 42 when the refrigerator compartment door 11 is opened and closed. I do.
  • the force that the deformed spring portion 82 tries to restore acts on the slope on the frontage side of the main body 10 in the ridge shape A of the first rod-shaped portion 42a, thereby promoting the self-closing force of the door.
  • the door lower member 24 of the freezer compartment door 12 is also provided with a hinge auxiliary member having the same configuration as the hinge auxiliary members 81a and 81b.
  • the upper hinge pin 31 is attached to the upper portion on the right side of the main body 10.
  • the intermediate hinge pin 41 and the spring receiving member 42, and the lower hinge pin 61 and the spring receiving member 62 are attached to the right bearing portion 40a and the bearing portion 60a of the main body 10, respectively (see FIGS. 3 and 4).
  • the upper hinge pin 31 is attached to the upper portion on the left side of the main body 10.
  • the intermediate hinge pin 41 and the spring receiving member 42, and the lower hinge pin 61 and the spring receiving member 62 are attached to the left bearing portion 40b and the left bearing portion 60b of the main body 10 (see FIGS. 6 and 7).
  • the opening and closing directions of the doors 11 and 12 of the refrigerator 1 are changed by changing the set of the hinge pins 31, 41 and 61 and the spring receiving members 42 and 62 to the left and right. Can be changed left and right.
  • FIG. 10 shows a state where the spring receiving member 42 is attached to the intermediate hinge pin 41.
  • the intermediate hinge pin 41 is inserted into a pin insertion hole of the spring receiving member 42.
  • the spring receiving member 42 may be fixed to the intermediate hinge pin 41 and integrated therewith.
  • the spring receiving member 42 is insert-molded into the intermediate hinge pin 41, so that the two can be integrated.
  • the intermediate hinge pin 41 and the spring receiving member 42 are replaced in this state. That is, the intermediate hinge pin 41 and the spring receiving member 42 are detached from one of the bearing portions 40a or 40b and attached to the other bearing portion 40b or 40a.
  • the spring receiving member 42 has two rod-shaped portions (a first rod-shaped portion 42a and a second rod-shaped portion 42b) extending from a base portion 42 'in which a pin insertion hole is formed.
  • the first rod-shaped portion 42a and the second rod-shaped portion 42b extend in a positional relationship of about 90 degrees (substantially right angle) with respect to the base point 42 '(see FIG. 9 and the like).
  • the upper surfaces of the first rod-shaped portion 42a and the second rod-shaped portion 42b have a ridge shape A. When the refrigerator compartment door 11 is closed, the ridge shape A acts on the spring portion 82 provided on the door side, thereby promoting the self-closing force of the door.
  • an intermediate portion 42c is provided between the first rod portion 42a and the second rod portion 42b so as to bridge the first rod portion 42a and the second rod portion 42b.
  • a fixing pin 42d extending downward is formed in the intermediate portion 42c. As described above, the fixing pin 42d is inserted into the second hole 48 of the bearing portion 40a or 40b. Thereby, the intermediate hinge pin 41 and the spring receiving member 42 are fixed to the bearing portion 40 a or 40 b of the main body 10, and the intermediate hinge pin 41 is connected to the pivot shaft below the refrigerator compartment door 11 and the freezer compartment door 12. It becomes the upper pivot axis.
  • the intermediate hinge pin 41 and the spring receiving member 42 attached to the right bearing 40a are replaced with the left bearing 40b.
  • the arrangement of the spring receiving member 42 is changed by rotating the spring receiving member 42 approximately 90 degrees in the horizontal direction.
  • the first rod-shaped portion 42a when the refrigerator compartment door 11 is opened to the left, the first rod-shaped portion 42a is located in front of the frontage of the main body 10 (see FIG. 4). As a result, the ridge shape A of the first rod-shaped portion 42a acts on the spring portion 82 provided on the door side to promote the self-closing force of the door.
  • the second rod-shaped portion 42b when the refrigerator compartment door 11 is opened to the right, the second rod-shaped portion 42b is located in front of the frontage of the main body 10 (see FIG. 7). As a result, the ridge shape A of the second rod-shaped portion 42b acts on the spring portion 82 provided on the door side to promote the self-closing force of the door.
  • the same configuration as the configuration shown in FIG. 10 can be applied to the configuration of the lower hinge pin 61 and the spring receiving member 62. That is, when changing the hinge portion of the door opening / closing mechanism from right to left or from left to right, the lower hinge pin 61 and the spring receiving member 62 are removed from one bearing portion 60a or 60b, and the other bearing portion 60b or Attach to 60a. At this time, similarly to the spring receiving member 42, the arrangement of the spring receiving member 62 is changed by rotating the spring receiving member 62 approximately 90 degrees in the horizontal direction. In this manner, the lower hinge pin 61 serves as a lower pivot of the freezer compartment door 12.
  • the ridge shape of the first bar-shaped portion 62a acts on a spring portion (not shown) provided on the door side to promote the self-closing force of the door.
  • the ridge shape of the second rod-shaped portion 62b acts on a spring portion (not shown) provided on the door side to promote the self-closing force of the door.
  • a spacer member (space holding portion) 43 is provided in the middle hinge portion of the refrigerator 1.
  • the spacer member 43 has a head 43a having a larger diameter and a leg 43b having a smaller diameter.
  • the leg 43b is inserted into a hole 28 formed in the door upper member 23 of the freezer compartment door 12.
  • An insertion hole 43c into which the intermediate hinge pin 41 is inserted is formed in the head 43a.
  • the spacer member 43 functions as a bearing for the intermediate hinge pin 41.
  • the spacer member 43 also functions as a spacer for securing a space between the refrigerator compartment door 11 and the freezer compartment door 12 which are disposed vertically adjacent to each other.
  • the door opening / closing mechanism having the above-described configuration
  • the upper hinge pin 31, the refrigerator compartment door 11, the intermediate hinge pin 41, and the spring support are changed.
  • the member 42 and the freezer compartment door 12 are removed from the refrigerator 1 in this order.
  • the lower hinge pin 61 and the spring receiving member 62 are replaced from one bearing portion 60a (or 60b) to the other bearing portion 60b (or 60a).
  • the freezer compartment door 12 is attached to the lower hinge pin 61.
  • the spacer member 43 is replaced in the hole 28 formed in the door upper member 23 of the freezer compartment door 12 located above the lower hinge pin 61.
  • the intermediate hinge pin 41 and the spring receiving member 42 are replaced on the same side as the lower hinge pin 61.
  • the upper portion of the refrigerator compartment door 11 is aligned with the upper member 33 of the main body 10, and the refrigerator compartment door 11 and the upper The member 33 is supported and fixed by the upper hinge pin 31. Finally, the cover member 32 is attached to the upper surface of the main body 10.
  • the refrigerator compartment door 11 When attaching the refrigerator compartment door 11 to the main body 10, as shown in FIG. 11, the refrigerator compartment door 11 is inclined such that the lower side of the refrigerator compartment door 11 is closer to the main body 10. In this state, the intermediate hinge pin 41 is inserted into the hole 27 of the hinge auxiliary member 81a or 81b provided on the lower surface of the refrigerator compartment door 11.
  • FIG. 12 shows an enlarged view of the configuration around the intermediate hinge pin 41 when the refrigerator compartment door 11 is attached.
  • the side surface of the hole 27 into which the intermediate hinge pin 41 is inserted (specifically, the rear side surface of the refrigerator compartment door 11) is inclined so that the diameter increases toward the back of the hole.
  • An inclined portion 27a is formed.
  • the entrance portion of the hole 27 into which the intermediate hinge pin 41 is inserted (specifically, the entrance portion on the front side of the refrigerator compartment door 11) has an inclined portion 27b inclined so that the diameter increases toward the entrance side of the hole. Are formed.
  • FIG. 12 illustrates the shape of the hole 27 of the right hinge auxiliary member 81a, but the hole 27 of the left hinge auxiliary member 81b has the same shape.
  • a space C is formed between the support members 44a and 44b of the bearing portions 40a and 40b and the door upper member 23 of the freezer compartment door 12. This prevents the lower end of the refrigerator compartment door 11 from hitting the upper end of the freezer compartment door 12 even when the refrigerator compartment door 11 is tilted at the time of attachment. Then, by inserting the spacer member 43 into the hole 28 of the freezing compartment door 12 into which the intermediate hinge pin 41 is inserted, it is possible to prevent the freezing compartment door 12 from rattling in the vertical direction due to the provision of the space C.
  • one refrigerator 1 may be provided with one hinge pin 31, 41, 61, one spring receiving member 42, 62, and one spacer member 43.
  • FIG. 13 shows a configuration of an intermediate hinge portion including the intermediate hinge pin 41 when the refrigerator compartment door 11 is closed.
  • FIG. 14 shows a configuration of an intermediate hinge portion including the intermediate hinge pin 41 when the refrigerator compartment door 11 is opened by about 30 degrees. 13 and 14 show some components in a see-through state for convenience of explanation. In the following, a case where the refrigerator compartment door 11 is opened and closed from the left will be described as an example, but the same operation can be applied to a case where the refrigerator compartment door 11 is opened and closed from the right.
  • the flexible spring portion 82 rides on the ridge shape A on the upper surface of the first rod portion 42a. . Once the spring portion 82 rides on the ridge shape A, thereafter, a force acts on the spring portion 82 in a direction to close the door along the downward inclined surface of the ridge shape A. Thereby, the refrigerator compartment door 11 can be closed more smoothly. In addition, according to this configuration, the door once closed is prevented from leaving the main body 10 again, so that the refrigerator compartment door 11 can be closed more reliably.
  • the spring receiving member 42 together with the spring portion 82 of the hinge assisting member 81a, functions as a self-closability improving member that promotes the self-closing force of the door.
  • the inclined surface of the ridge shape A may be asymmetric in the front-rear direction.
  • the slope of the inclined surface located on the side facing the frontage side of the main body 10 is steeper than the slope of the opposite inclined surface. Accordingly, when the refrigerator compartment door 11 is closed, the force required for the protrusion 83 to ride on the ridge shape A of the first rod-shaped portion 42a is reduced, and after the protrusion 83 rides on the ridge shape A. Can exert a stronger force in the direction of closing the door.
  • the refrigerator compartment door 11 is opened and closed from the left side.
  • the spring receiving member 42 or the spring receiving member 62 replaced to the right side is used.
  • the action of the ridge shape A on the upper surface of the second rod portion 42b promotes the self-closing force of the door. That is, when the refrigerator compartment door 11 is closed, the ridge shape A on the upper surface of the second rod-shaped portion 42b acts on the spring portion 82 provided on the door side, thereby promoting the self-closing force of the door.
  • the first rod portion 42a affects the self-closing force of the door, while the shape of the second rod portion 42b does not affect the refrigerator compartment door 11, and the refrigerator compartment door 11 moves to the right.
  • the second bar-shaped portion 42b affects the self-closing force of the door, while the shape of the first bar-shaped portion 42a does not. For this reason, for example, even if the ridge shapes formed on the rod-shaped portions 42a and 42b are asymmetrical as described above, they do not affect each other.
  • the lower hinge portion including the hinge pin 61 performs the same operation as described above. That is, the spring receiving member 62 functions as a self-closability improving member that promotes the self-closing force of the door.
  • the refrigerator 1 has the door opening / closing mechanism according to the embodiment of the present invention.
  • the door opening / closing mechanism includes a main body 10, at least one door (ie, a refrigerator compartment door 11, a freezer compartment door 12), a hinge portion (ie, a hinge pin 41 and a spring receiving member 42, and a hinge pin 61 and a spring receiving member 62). ).
  • the hinge portion is configured to be replaceable on the left and right sides of the main body 10.
  • This hinge portion has a shaft portion (that is, hinge pins 41 and 61) and a self-closability improving member that promotes the self-closing force of the door (that is, spring receiving members 42 and 62).
  • the arrangement of the self-closability improving member is changed between when it is attached to the left side of the main body 10 and when it is attached to the right side of the main body 10. More specifically, the manner in which the spring receiving members 42 and 62 are arranged is changed by rotating the spring receiving members 42 and 62 approximately 90 degrees in the horizontal direction when changing the left and right directions (see FIGS. 4 and 7).
  • the two rod-shaped portions constituting the spring receiving member 42 extend in a positional relationship of about 90 degrees (substantially right angle) with each other.
  • the positional relationship may be an acute angle, such as 60 degrees, or may be an obtuse angle, such as 120 degrees.
  • it is preferable that the self-closability improving member does not protrude from the bearing portion, and that the bar-shaped portion on the side that does not function as the self-closability improving member does not interfere with the opening and closing operation of the door.
  • both the two doors that is, the refrigerator door 11 and the freezer door 12
  • both the two doors that is, the refrigerator door 11 and the freezer door 12
  • a member is provided. Therefore, the door can be more reliably and easily closed when performing the operation of closing the door for both the upper and lower doors.
  • the spring receiving member 42 constituting the middle hinge portion serves as a self-closability improving member of the refrigerator compartment door 11 located above, and the spring receiving member 62 constituting the lower hinge portion is located above. It becomes a member for improving the self-closability of the freezer compartment door 12.
  • the intermediate hinge pin 41 constituting the intermediate hinge portion serves as a pivot shaft of both the upper and lower doors (that is, the refrigerator door 11 and the freezer door 12).
  • only one of the vertically adjacent doors may be a door having a configuration that can be opened left and right, and the other door may be a drawer door.
  • the upper door is configured to be able to change the left / right opening
  • only the upper door is provided with the door opening / closing mechanism according to an embodiment of the present invention.
  • the second embodiment differs from the first embodiment in the configuration of the spring receiving member and the spring portion that constitute the door opening / closing mechanism of the refrigerator compartment door.
  • the same configuration as in the first embodiment can be applied.
  • a description will be given focusing on a configuration different from that of the first embodiment.
  • FIGS. 15 and 16 show a configuration around an intermediate hinge portion of the refrigerator 1 according to the second embodiment.
  • FIG. 15 is a diagram illustrating a state similar to FIG. 13 in the first embodiment.
  • FIG. 16 is a diagram illustrating a state similar to FIG. 14 in the first embodiment.
  • the configuration of the spring portions 182 of the hinge assisting members 181a and 181b provided on the refrigerator compartment door 11 is different from that of the first embodiment. Specifically, the point that the projection 83 is not formed in the spring portion 182 is different from the first embodiment.
  • FIG. 17 shows the appearance of the spring receiving member 142.
  • FIG. 17 shows a state where the spring receiving member 142 is attached to the intermediate hinge pin 41.
  • the spring receiving member 142 has two rod-shaped parts (first rod-shaped part 142a and second rod-shaped part 142b) extending from the base point part 142 'where the pin insertion hole is formed.
  • the first rod-like portion 142a and the second rod-like portion 142b extend in a positional relationship of about 90 degrees (substantially right angle) with respect to the base point 142 '.
  • An intermediate portion 142c is provided between the first rod portion 142a and the second rod portion 142b.
  • a fixing pin 142d extending downward is formed in the intermediate portion 142c. As in the first embodiment, the fixing pin 142d is inserted into the second hole 48 of the bearing 40a or 40b.
  • the upper surfaces of the first rod-shaped portion 42a and the second rod-shaped portion 42b have a ridge shape A.
  • the spring portion 82 (specifically, the projection 83) and the spring receiving member 42 (specifically, the ridge shape A) are configured to abut on each other in the vertical direction.
  • the spring portion 182 and the spring receiving member 142 are configured such that their leading ends abut against each other in the horizontal direction (see FIG. 16).
  • the spring portion 182 having flexibility in the horizontal direction flexes forward and the first rod-shaped portion 142a (right-opening). In the case of (2), it moves to the rear side of the tip of the second rod-shaped portion 142b).
  • the spring portion 182 moves to the rear side of the first rod portion 142a (the second rod portion 142b in the case of opening rightward), the spring portion 182 thereafter moves the first rod portion 142a (in the case of rightward opening, Since it operates so as to bite into the two rod-shaped portions 142b), a force is applied to the spring portion 182 in the direction to close the door. Thereby, the refrigerator compartment door 11 can be closed reliably.
  • the movement in the vertical direction during the opening / closing operation of the door is suppressed. Therefore, as compared with the first embodiment, the vertical clearance between the doors (that is, the refrigerator door 11 and the freezer door 12) arranged vertically adjacent to each other can be reduced. Further, since the direction in which the spring portion 182 bends is the horizontal direction, the amount of deflection of the spring portion 182 is less limited. Therefore, a stronger self-closing force and a wider self-closing action can be exerted.
  • spring portion 182 and spring receiving member 142 can be applied to a spring portion and a spring receiving member constituting a lower hinge portion including the hinge pin 61.
  • the configuration of a spring receiving member that configures a door opening / closing mechanism for a refrigerator compartment door is different from that of the first embodiment.
  • the same configuration as in the first embodiment can be applied.
  • a description will be given focusing on a configuration different from that of the first embodiment.
  • FIGS. 18 and 19 show the configuration of the main body 10 of the refrigerator according to the third embodiment.
  • FIG. 18 shows a configuration of the main body 10 when the refrigerator compartment door 11 and the freezer compartment door 12 are both opened and closed from the right side.
  • FIG. 19 shows the configuration of the main body 10 when both the refrigerator compartment door 11 and the freezer compartment door 12 are opened and closed from the left side.
  • bearing portions 40a and 40b into which the hinge pins 41 are inserted are provided in the frontage portion of the partition portion 10a of the main body portion 10. Further, bearing portions 60a and 60b into which the hinge pins 61 are inserted are provided in the frontage portion of the lower end portion of the main body portion 10.
  • a second hole 48 into which the fixing pin 42d of the spring receiving member 42 is inserted is formed in the protrusion 46 of each of the bearings 40a and 40b.
  • the projecting portion 248 inserted into the through hole 244 of the spring receiving member 242 is formed in the overhanging portion 46 of each of the bearing portions 40a and 40b.
  • the same configuration as the bearing units 40a and 40b of the first embodiment can be applied.
  • a similar convex portion 268 is formed on the overhang portion 66 of each of the bearing portions 60a and 60b.
  • the protrusion 268 is inserted into a through hole of the spring receiving member 262.
  • the same configuration as the bearing units 60a and 60b of the first embodiment can be applied.
  • FIG. 21 shows the appearance of the spring receiving member 242.
  • FIG. 21 shows a state where the spring receiving member 242 is attached to the intermediate hinge pin 41.
  • the ⁇ ⁇ spring receiving member 242 has one rod-shaped portion 242a extending from the base portion 242 'in which the pin insertion hole is formed.
  • a ridge 242A is formed on the upper surface of the rod 242a.
  • a ridge 242B is formed on the lower surface of the rod 242a.
  • a support portion 243 is formed on the rear side of the rod portion 242a.
  • the support portion 243 has a through hole 244 formed therein.
  • the spring receiving member 242 having the above configuration is formed such that the upper surface and the lower surface are symmetrical, and can be attached to the left and right bearing portions 40a and 40b.
  • the intermediate hinge pin 41 and the spring receiving member 242 attached to the right bearing 40a are replaced with the left bearing 40b.
  • the manner of disposing the spring receiving member 242 is changed by turning the spring receiving member 242 up and down (rotating it approximately 180 degrees in the vertical direction).
  • the ridge 242A of the bar 242a when the refrigerator compartment door 11 is opened to the left, the ridge 242A of the bar 242a is located on the upper side (see FIG. 18). As a result, the ridge portion 242A of the rod portion 242a acts with the spring portion 82 provided on the door side to promote the self-closing force of the door (see FIG. 20).
  • the ridge 242B of the rod 242a when the refrigerator compartment door 11 is opened to the right, the ridge 242B of the rod 242a is located on the upper side (see FIG. 19). As a result, the ridge-like portion 242B of the rod-like portion 242a acts on the spring portion 82 provided on the door side to promote the self-closing force of the door.
  • one spring receiving member 242 can be used as a member for improving the self-closing property of the hinge portions on the left and right sides.
  • the spring receiving member 242 may be integrated with the intermediate hinge pin 41 instead of being a separate component. In this case, it is desirable that the intermediate hinge pin 41 also has a vertically symmetric shape. Then, the arrangement of the spring receiving member 242 is changed by inverting the spring receiving member 242 and the intermediate hinge pin 41 in the vertical direction.
  • the spring receiving member 262 constituting the lower hinge portion including the hinge pin 61 can apply the same configuration as that of the spring receiving member 242, and thus the detailed description is omitted.
  • FIG. 22 shows a modification of the third embodiment.
  • the structure of the rod portion 342a of the spring receiving member 242 is different from the above-described rod portion 242a.
  • the structure of the rod portion 342a has the same shape as the first rod portion 142a of the spring receiving member 142 described in the second embodiment.
  • the spring portion 182 and the rod-shaped portion 342a of the spring receiving member 242 are configured such that their distal ends abut against each other in the horizontal direction (see FIG. 22).
  • the spring portion 182 having flexibility in the horizontal direction is bent forward and backward of the distal end of the rod portion 342a. Move to the side.
  • the spring portion 182 thereafter operates to bite into the rod portion 342a, so that a force acts on the spring portion 182 in a direction to close the door. Thereby, the refrigerator compartment door 11 can be closed reliably.
  • the spring receiving member 242 attached to the right bearing portion 40a is moved in the vertical direction as in the third embodiment. (Rotated about 180 degrees in the vertical direction).
  • FIG. 23 shows a cross-sectional configuration around an intermediate hinge portion of the refrigerator 1 according to the fourth embodiment.
  • the intermediate hinge pin 441 serves as a pivot on the lower side of the refrigerator compartment door 11.
  • the intermediate hinge pin 441 is directly inserted into the hole 428 formed in the door upper member 23 of the freezer compartment door 12 without the intervention of the spacer member 43.
  • the intermediate hinge pin 441 has an upper part 441a and a lower part 441b.
  • the upper portion 441 a is located on the upper side when attached to the main body 10 of the refrigerator 1, and is inserted into the hole 27 provided on the lower side of the refrigerator compartment door 11.
  • the lower part 441 b is located on the lower side when attached to the main body 10 of the refrigerator 1, and is inserted into a hole 428 provided on the upper side of the freezer compartment door 12.
  • the depth of the hole 428 is shallower than the depth of the hole 28.
  • the lower part of the lower part 441 b of the intermediate hinge pin 441 is located in the hole 428, and the upper part of the lower part 441 b is exposed upward from the upper surface of the freezer compartment door 12. Since the upper portion of the lower portion 441b is exposed upward, a space C is formed between the support members 44a and 44b of the bearing portions 40a and 40b and the door upper member 23 of the freezer compartment door 12.
  • the exposed portion of the lower portion 441b functions as a spacer for securing a space between the refrigerator compartment door 11 and the freezer compartment door 12, which are disposed vertically adjacent to each other.
  • the diameter of the lower portion 441b of the intermediate hinge pin 441 may be larger than the diameter of the upper portion 441a.
  • the diameter of the upper portion 441a and the lower portion 441b of the intermediate hinge pin 441 if the intermediate hinge pin 441 or the spring receiving member 42 integrally formed with the intermediate hinge pin is vertically asymmetric, it is prevented from being inserted reversely. it can.
  • Refrigerator 10 Main body 11: Refrigerator door (door) 12: Freezer door (door) 31: Upper hinge pin 40a: (Right) bearing portion 40b: (Left) bearing portion 41: Intermediate hinge pin (hinge portion, shaft portion) 42: Spring receiving member (hinge part, self-closing improving member) 43: Spacer member (space holding part) 60a: (right) bearing portion 60b: (left) bearing portion 61: lower hinge pin (hinge portion, shaft portion) 62: Spring receiving member (hinge part, self-closing improving member) 142: Spring receiving member (hinge part, self-closing improving member) 242: spring receiving member (hinge part, self-closing improving member) 441b: Lower part (space holding part) (of intermediate hinge pin)

Abstract

A refrigerator (1) has a door opening-closing mechanism. The door opening-closing mechanism comprises a main portion (10), at least one door (for example a refrigeration chamber door (11)), and a hinge part (for example a hinge pin (41) and a spring seat member (42)). The hinge part is configured so as to be able to be placed on the left side or the right side of the main portion (10). The hinge part has a shaft (for example the hinge pin (41)) and a self-closing advancement member (for example the spring seat member (42)) to promote a self-closing force for the door. The arrangement of the self-closing advancement member is altered when mounted on the left side of the main portion (10) and when mounted on the right side of the main portion (10).

Description

扉開閉機構および冷蔵庫Door opening and closing mechanism and refrigerator
　本開示は、扉の左右開きを変更することのできる扉開閉機構、およびこの扉開閉機構を有する扉を備えている冷蔵庫に関する。 開 示 The present disclosure relates to a door opening / closing mechanism capable of changing the left / right opening of a door, and a refrigerator including a door having the door opening / closing mechanism.
　冷蔵庫扉の開閉機構として、部品を付け替えることによって扉の左右の開閉方向を変更可能に構成されているものがある。例えば、特許文献１には、冷蔵庫扉の左右開きを変更することができる冷蔵庫扉の開閉構造が開示されている。 There is a refrigerator door opening / closing mechanism that can change the left / right opening / closing direction of the door by changing parts. For example, Patent Literature 1 discloses an opening / closing structure of a refrigerator door that can change the left / right opening of the refrigerator door.
　この冷蔵庫扉の開閉構造は、冷蔵庫本体と、左右両側のそれぞれの上部に取付孔を有する扉と、上記冷蔵庫本体の左右両側のそれぞれに設けられると共に、上記取付孔の上側でこの取付孔に重なる貫通孔を有するヒンジ保持部材と、上記貫通孔の上側からこの貫通孔に挿通され上記取付孔に抜き取り自在に差し込まれて、上記扉を上記冷蔵庫本体に対して回転可能に取り付けるヒンジピンと、上記扉の下側に配置されると共に上記扉を上記冷蔵庫本体に対して上記ヒンジピンの軸回りに回転可能に取り付ける下ヒンジ部とを備えている。そして、扉の左右一方の取付孔、および、左右一方のヒンジ保持部材の貫通孔に差し込まれているヒンジピンを抜き取って、このヒンジピンを、扉の左右他方の取付孔、および、左右他方のヒンジ保持部材の貫通孔に差し込むことで、扉の左右開きを簡単に変更することができる。 The opening / closing structure of the refrigerator door is provided on each of the left and right sides of the refrigerator main body, the door having the mounting holes on the right and left sides thereof, and overlaps the mounting hole above the mounting hole. A hinge holding member having a through hole, a hinge pin that is inserted into the through hole from above the through hole and is removably inserted into the mounting hole, and rotatably attaches the door to the refrigerator main body; And a lower hinge portion which is disposed on the lower side and which rotatably attaches the door to the refrigerator main body around an axis of the hinge pin. Then, the left and right mounting holes of the door and the hinge pin inserted into the through holes of the left and right hinge holding members are pulled out, and the hinge pin is attached to the left and right other mounting holes of the door and the left and right hinge holding portions. By inserting the door into the through hole of the member, it is possible to easily change the left and right opening of the door.
特許第４２１７６７４号公報Japanese Patent No. 4217674
　このような冷蔵庫扉の開閉機構では、使用者が扉を閉じる動作を行う際に扉の自閉力を高めるために、扉のパッキン部分に磁石を取り付けているものがある。しかし、磁石によって扉の自閉力を付与する構成だけでは扉の自閉力が不足することがあり、例えば、扉に重量物が収納されている場合には、自閉力不足で扉が閉まらない状態となることがある。 In some of such refrigerator door opening / closing mechanisms, a magnet is attached to the packing portion of the door to increase the self-closing force of the door when the user performs the operation of closing the door. However, there is a case where the door self-closing force is insufficient with only the configuration in which the door self-closing force is applied by the magnet.For example, when a heavy object is stored in the door, the door cannot be closed due to the insufficient self-closing force. May not be available.
　そこで、本開示では、左右開きを変更することのできる扉において、扉を閉じる動作を行うときにより確実かつ容易に扉を閉じることのできる構成を提供することを目的とする。 Therefore, an object of the present disclosure is to provide a configuration in which the door can be closed more reliably and easily when performing an operation of closing the door, in which the door can be opened left and right.
　本発明の一局面にかかる扉開閉機構は、本体部と、少なくとも一つの扉と、ヒンジ部とを備えている。この扉開閉機構において、前記ヒンジ部は、前記本体部の左側および右側に付け替え可能に構成されており、前記ヒンジ部は、軸部と、前記扉の自閉力を促進させる自閉性向上部材とを有しており、前記自閉性向上部材は、前記本体部の左側に取り付けられたときと、前記本体部の右側に取り付けられたときとの間で、配置の仕方が変更されている。 扉 A door opening and closing mechanism according to one aspect of the present invention includes a main body, at least one door, and a hinge. In this door opening and closing mechanism, the hinge portion is configured to be replaceable on the left and right sides of the main body portion, and the hinge portion includes a shaft portion and a self-closability improving member that promotes a self-closing force of the door. The arrangement of the self-closability improving member is changed between when it is attached to the left side of the main body and when it is attached to the right side of the main body.
　上記の本発明の一局面にかかる扉開閉機構において、前記自閉性向上部材は、左右付け替え時に水平方向に回転させることによって、前記配置の仕方が変更される構成を有していてもよい。 In the door opening and closing mechanism according to one aspect of the present invention described above, the self-closability improving member may have a configuration in which the arrangement is changed by rotating the self-closability improving member in the horizontal direction at the time of changing the right and left.
　上記の本発明の一局面にかかる扉開閉機構において、前記自閉性向上部材は、左右付け替え時に上下方向に反転させることによって、前記配置の仕方が変更される構成を有していてもよい。 In the door opening / closing mechanism according to one aspect of the present invention described above, the self-closability improving member may have a configuration in which the arrangement manner is changed by inverting the self-closability improving member in a vertical direction at the time of right and left replacement.
　本発明のもう一つの局面にかかる冷蔵庫は、上下方向に少なくとも２つの扉を備えている。この冷蔵庫では、前記少なくとも２つの扉の少なくとも何れか一方の扉が、上記の本発明の一局面にかかる扉開閉機構を有している。 冷 蔵 庫 A refrigerator according to another aspect of the present invention includes at least two doors in a vertical direction. In this refrigerator, at least one of the at least two doors has the door opening / closing mechanism according to one aspect of the present invention.
　上記の本発明の一局面にかかる冷蔵庫において、前記少なくとも２つの扉の何れもが前記扉開閉機構を有していてもよい。そして、前記少なくとも２つの扉のうちの隣接する２つの扉の間には、前記ヒンジ部として中間ヒンジ部が配置されている。この中間ヒンジ部の前記軸部は、前記隣接する２つの扉うちの双方の開閉時の回転軸となり、前記中間ヒンジ部の前記自閉性向上部材は、前記隣接する２つの扉のうちの上方側の扉の自閉力を促進させるものであってもよい。 In the refrigerator according to one aspect of the present invention, each of the at least two doors may have the door opening / closing mechanism. Further, an intermediate hinge portion is disposed as the hinge portion between two adjacent ones of the at least two doors. The shaft portion of the intermediate hinge portion serves as a rotation axis for opening and closing both of the two adjacent doors, and the self-closability improving member of the intermediate hinge portion is located on the upper side of the two adjacent doors. The self-closing force of the door may be promoted.
　上記の本発明の一局面にかかる冷蔵庫において、前記少なくとも２つの扉のうちの隣接する２つの扉の間には、各扉の間に空間を確保する空間保持部が設けられていてもよい。 In the refrigerator according to one aspect of the present invention, a space holding unit that secures a space between the two doors may be provided between two adjacent ones of the at least two doors.
　本発明の一局面によれば、左右開きを変更することのできる扉において、扉を閉じる動作を行うときにより確実かつ容易に扉を閉じることができる。 According to one aspect of the present invention, in a door that can be changed from left to right, the door can be more reliably and easily closed when the door is closed.
本発明の一実施形態にかかる冷蔵庫の外観構成を示す正面図である。It is a front view showing the appearance composition of the refrigerator concerning one embodiment of the present invention. 第１の実施形態にかかる冷蔵庫の各扉を左側から開けた状態を示す斜視図である。It is a perspective view showing the state where each door of the refrigerator concerning a 1st embodiment was opened from the left. 図２に示す冷蔵庫の本体部を示す斜視図である。FIG. 3 is a perspective view illustrating a main body of the refrigerator illustrated in FIG. 2. 図３に示す冷蔵庫の本体部を上方側から見た斜視図である。It is the perspective view which looked at the main-body part of the refrigerator shown in FIG. 3 from the upper side. 第１の実施形態にかかる冷蔵庫の冷蔵室扉を右側から開けた状態を示す斜視図である。It is a perspective view showing the state where the refrigerator compartment door of the refrigerator concerning a 1st embodiment was opened from the right side. 図５に示す冷蔵庫の本体部を示す斜視図である。FIG. 6 is a perspective view illustrating a main body of the refrigerator illustrated in FIG. 5. 図６に示す冷蔵庫の本体部を上方側から見た斜視図である。It is the perspective view which looked at the main-body part of the refrigerator shown in FIG. 6 from the upper side. 第１の実施形態にかかる冷蔵庫の冷蔵室扉を下方側から見た斜視図である。It is the perspective view which looked at the refrigerator compartment door of the refrigerator concerning a 1st embodiment from the lower side. 第１の実施形態にかかる冷蔵庫の中間のヒンジ部を分解した状態で示す斜視図である。It is a perspective view showing the state where the middle hinge part of the refrigerator concerning a 1st embodiment was disassembled. 第１の実施形態にかかる冷蔵庫に備えられているヒンジピンおよびばね受け部材を示す斜視図である。FIG. 2 is a perspective view showing a hinge pin and a spring receiving member provided in the refrigerator according to the first embodiment. 第１の実施形態にかかる冷蔵庫の本体部に冷蔵室扉を取り付ける様子を示す断面図である。It is sectional drawing which shows a mode that a refrigerator compartment door is attached to the main-body part of the refrigerator concerning 1st Embodiment. 図１１に示す冷蔵庫の中間のヒンジ部周辺を拡大して示す断面図である。It is sectional drawing which expands and shows the periphery of the middle hinge part of the refrigerator shown in FIG. 第１の実施形態にかかる冷蔵庫の冷蔵室扉が閉じている状態のときの中間のヒンジ部周辺の構成を示す図である。FIG. 3 is a diagram illustrating a configuration around an intermediate hinge portion when the refrigerator compartment door of the refrigerator according to the first embodiment is closed. 第１の実施形態にかかる冷蔵庫の冷蔵室扉が開いている状態のときの中間のヒンジ部周辺の構成を示す図である。It is a figure showing the composition of the circumference of an intermediate hinge part when the refrigerator compartment door of the refrigerator concerning a 1st embodiment is open. 第２の実施形態にかかる冷蔵庫の冷蔵室扉が閉じている状態のときの中間のヒンジ部周辺の構成を示す図である。It is a figure showing the composition around the middle hinge part when the refrigerator compartment door of the refrigerator concerning a 2nd embodiment is closed. 第２の実施形態にかかる冷蔵庫の冷蔵室扉が開いている状態のときの中間のヒンジ部周辺の構成を示す図である。It is a figure showing the composition around the middle hinge part when the refrigerator compartment door of the refrigerator concerning a 2nd embodiment is open. 第２の実施形態にかかる冷蔵庫に備えられているヒンジピンおよびばね受け部材を示す斜視図である。It is a perspective view showing the hinge pin and the spring receiving member with which the refrigerator concerning a 2nd embodiment is provided. 第３の実施形態にかかる冷蔵庫の本体部を上方側から見た斜視図である。この図は、各扉を左側から開ける構成のときの図である。It is the perspective view which looked at the main part of the refrigerator concerning a 3rd embodiment from the upper side. This diagram is a diagram when each door is configured to be opened from the left side. 第３の実施形態にかかる冷蔵庫の本体部を上方側から見た斜視図である。この図は、各扉を右側から開ける構成のときの図である。It is the perspective view which looked at the main part of the refrigerator concerning a 3rd embodiment from the upper side. This drawing is a diagram when each door is opened from the right side. 第３の実施形態にかかる冷蔵庫の冷蔵室扉が閉じている状態のときの中間のヒンジ部周辺の構成を示す図である。この図では、中間のヒンジ部を下方側から見た状態を示す。It is a figure showing composition around an intermediate hinge part when a refrigerator compartment door of a refrigerator concerning a 3rd embodiment is closed. This figure shows a state where the intermediate hinge portion is viewed from below. 第３の実施形態にかかる冷蔵庫に備えられているヒンジピンおよびばね受け部材を示す斜視図である。It is a perspective view showing a hinge pin and a spring receiving member provided in a refrigerator according to a third embodiment. 第３の実施形態にかかる冷蔵庫の変形例を示す図である。この図は、冷蔵室扉が閉じている状態のときの中間のヒンジ部周辺の構成を示す図である。この図では、中間のヒンジ部を下方側から見た状態を示す。It is a figure showing the modification of the refrigerator concerning a 3rd embodiment. This figure is a diagram showing a configuration around an intermediate hinge portion when the refrigerator compartment door is closed. This figure shows a state where the intermediate hinge portion is viewed from below. 第４の実施形態にかかる冷蔵庫の中間のヒンジ部周辺の構成を示す断面図である。It is sectional drawing which shows the structure around the intermediate hinge part of the refrigerator concerning 4th Embodiment.
　以下、図面を参照しつつ、本発明の各実施形態について説明する。以下の説明では、同一の部品には同一の符号を付してある。それらの名称および機能も同じである。したがって、それらについての詳細な説明は繰り返さない。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same components are denoted by the same reference numerals. Their names and functions are the same. Therefore, detailed description thereof will not be repeated.
　〔第１の実施形態〕
　（冷蔵庫の全体構成）
　本実施形態では、２つの収納庫（冷蔵室２および冷凍室３）を有している冷蔵庫１を例に挙げて説明する。冷蔵庫１は、本発明の一例の扉開閉機構を備えている。図１には、本実施形態にかかる冷蔵庫１の外観を示す。図２には、冷蔵庫１の各扉を開けた状態の外観を示す。冷蔵庫１は、主として、本体部１０と、冷蔵室扉１１および冷凍室扉１２とで構成されている。本体部１０は、断熱箱体でその外形が形成されている。 [First Embodiment]
(Overall configuration of refrigerator)
In the present embodiment, a refrigerator 1 having two storages (a refrigerator compartment 2 and a freezer compartment 3) will be described as an example. The refrigerator 1 includes a door opening / closing mechanism according to an example of the present invention. FIG. 1 shows an appearance of a refrigerator 1 according to the present embodiment. FIG. 2 shows the appearance of the refrigerator 1 with each door open. The refrigerator 1 mainly includes a main body 10, a refrigerator compartment door 11 and a freezer compartment door 12. The outer shape of the main body 10 is formed by a heat insulating box.
　冷蔵庫１の上段には冷蔵室２が配置されている。冷蔵室２の正面の開口部には、冷蔵室扉１１が取り付けられている。冷蔵庫１の下段には冷凍室３が配置されている。冷凍室３の正面の開口部には、冷凍室扉１２が取り付けられている。冷蔵室扉１１および冷凍室扉１２は、本発明の一例の扉開閉機構を有している。そして、ヒンジ部を構成する部品（具体的には、ヒンジピン３１・４１・６１など）を付け替えることによって扉の左右の開閉方向を変更可能に構成されている。 冷 Refrigerator 1 has refrigerator room 2 in the upper stage. A refrigerator compartment door 11 is attached to an opening at the front of the refrigerator compartment 2. A freezing room 3 is arranged below the refrigerator 1. A freezer compartment door 12 is attached to an opening at the front of the freezer compartment 3. The refrigerator compartment door 11 and the freezer compartment door 12 have a door opening / closing mechanism as an example of the present invention. The left and right opening and closing directions of the door can be changed by replacing parts (specifically, hinge pins 31, 41, 61, etc.) constituting the hinge portion.
　なお、冷蔵庫１における各貯蔵室の構成や配置は、上記のものに限定はされない。各貯蔵室の構成および配置は、冷蔵庫の容量、用途などに応じて適宜変更することができる。 The configuration and arrangement of each storage room in the refrigerator 1 are not limited to those described above. The configuration and arrangement of each storage room can be changed as appropriate according to the capacity and use of the refrigerator.
　本実施形態では、扉が設けられている面を冷蔵庫１の前面（正面）とする。そして、前面を基準にして、冷蔵庫１を通常の状態で設置した場合に存在する位置に基づいて、冷蔵庫１の本体部１０の各面を、上面、側面、背面、及び底面とする。また、冷蔵庫１を正面側から見た状態で、左に位置する側を冷蔵庫１（または冷蔵室扉１１）の左側と呼び、右に位置する側を冷蔵庫１（または冷蔵室扉１１）の右側と呼ぶ。 In the present embodiment, the surface on which the door is provided is the front (front) of the refrigerator 1. Then, each surface of the main body 10 of the refrigerator 1 is referred to as an upper surface, a side surface, a rear surface, and a bottom surface based on a position existing when the refrigerator 1 is installed in a normal state with reference to the front surface. When the refrigerator 1 is viewed from the front side, the side located on the left is called the left side of the refrigerator 1 (or the refrigerator compartment door 11), and the side located on the right is the right side of the refrigerator 1 (or the refrigerator compartment door 11). Call.
　図１および図２には、冷蔵室扉１１および冷凍室扉１２が、左側から開閉される状態を示す。この状態では、各ヒンジピン（軸部）３１・４１・６１は、冷蔵庫１の右側の端部に取り付けられている。図５には、冷蔵室扉１１および冷凍室扉１２が、右側から開閉される状態を示す。この状態では、各ヒンジピン３１・４１・６１は、冷蔵庫１の左側の端部に取り付けられている。 1 and 2 show a state where the refrigerator door 11 and the freezer door 12 are opened and closed from the left side. In this state, each hinge pin (shaft) 31, 41, 61 is attached to the right end of the refrigerator 1. FIG. 5 shows a state where the refrigerator compartment door 11 and the freezer compartment door 12 are opened and closed from the right side. In this state, each hinge pin 31, 41, 61 is attached to the left end of the refrigerator 1.
　以上のように、本実施形態にかかる冷蔵庫１は、ヒンジピン３１・４１・６１が本体部１０の右側に配置された状態で、各扉１１および１２が本体部１０に取り付けられると、左側の端部から各扉１１および１２を開閉する構成となる。また、ヒンジピン３１・４１・６１が本体部１０の左側に配置された状態で、各扉１１および１２が本体部１０に取り付けられると、右側の端部から各扉１１および１２を開閉する構成となる。 As described above, when the doors 11 and 12 are attached to the main body 10 in a state where the hinge pins 31, 41 and 61 are arranged on the right side of the main body 10, the refrigerator 1 according to the present embodiment has the left end. It is configured to open and close each door 11 and 12 from the unit. When the doors 11 and 12 are attached to the main body 10 in a state where the hinge pins 31, 41 and 61 are disposed on the left side of the main body 10, the doors 11 and 12 are opened and closed from the right end. Become.
　（扉開閉機構について）
　続いて、冷蔵庫１に取り付けられた冷蔵室扉１１の扉開閉機構について説明する。図３、図４、図６、および図７には、冷蔵庫１から各扉１１および１２を取り外した状態の本体部１０の外観を示す。図３および図４は、冷蔵室扉１１および冷凍室扉１２が、ともに左側から開閉されるときの本体部１０の構成を示す。図６および７は、冷蔵室扉１１および冷凍室扉１２が、ともに右側から開閉されるときの本体部１０の構成を示す。 (About door opening and closing mechanism)
Subsequently, a door opening / closing mechanism of the refrigerator compartment door 11 attached to the refrigerator 1 will be described. FIGS. 3, 4, 6, and 7 show the appearance of the main body 10 with the doors 11 and 12 removed from the refrigerator 1. FIG. 3 and 4 show the configuration of the main body 10 when the refrigerator compartment door 11 and the freezer compartment door 12 are both opened and closed from the left side. 6 and 7 show the configuration of the main body 10 when the refrigerator compartment door 11 and the freezer compartment door 12 are both opened and closed from the right side.
　また、図８には、冷蔵室扉１１の底面部分の構成を示す。図９には、冷蔵庫１の中間のヒンジ部を構成する各部品を分解した状態で示す。図１０には、中間ヒンジピン４１にばね受け部材（自閉性向上部材）４２を取り付けた状態を示す。 FIG. 8 shows the configuration of the bottom portion of the refrigerator compartment door 11. FIG. 9 shows an exploded state of each component constituting the middle hinge portion of the refrigerator 1. FIG. 10 shows a state in which a spring receiving member (self-closing property improving member) 42 is attached to the intermediate hinge pin 41.
　冷蔵室扉１１は、扉本体部分の上部に取り付けられる扉上方部材２１、および扉本体部分の下部に取り付けられる扉下方部材２２を有している。冷凍室扉１２は、扉本体部分の上部に取り付けられる扉上方部材２３、および扉本体部分の下部に取り付けられる扉下方部材２４を有している。各扉部材２１から２４には、左右両側の端部付近に、ヒンジピン３１、４１、または６１が差し込まれる穴が形成されている。 The refrigerator compartment door 11 has a door upper member 21 attached to the upper part of the door body, and a door lower member 22 attached to the lower part of the door body. The freezer compartment door 12 has a door upper member 23 attached to the upper part of the door body, and a door lower member 24 attached to the lower part of the door body. In each of the door members 21 to 24, holes are formed near the left and right ends, into which the hinge pins 31, 41, or 61 are inserted.
　ヒンジピン３１は、本体部１０の上部に取り付けられるため、上方ヒンジピンとも呼ばれる。ヒンジピン４１は、本体部１０の中間部（本実施形態では、仕切り部１０ａ）に取り付けられるため、中間ヒンジピンとも呼ばれる。ヒンジピン６１は、本体部１０の下部に取り付けられるため、下方ヒンジピンとも呼ばれる。各ヒンジピン３１・４１・６１は、冷蔵室扉１１および冷凍室扉１２の枢支軸となる。 Since the hinge pin 31 is attached to the upper part of the main body 10, it is also referred to as an upper hinge pin. The hinge pin 41 is also called an intermediate hinge pin because it is attached to an intermediate portion of the main body 10 (the partition 10a in the present embodiment). Since the hinge pin 61 is attached to the lower part of the main body 10, it is also called a lower hinge pin. Each hinge pin 31, 41, 61 serves as a pivot for the refrigerator compartment door 11 and the freezer compartment door 12.
　本体部１０には、冷蔵室２と冷凍室３との間を仕切る仕切り部１０ａが設けられている。また、本体部１０の上面部の前方には、カバー部材３２が取り付けられている。カバー部材３２の下方には上方部材３３が設けられている（図１１参照）。上方部材３３には、上方ヒンジピン３１が差し込まれる穴３４が左右両側に形成されている。 The main body 10 is provided with a partition 10 a for partitioning between the refrigerator compartment 2 and the freezer compartment 3. A cover member 32 is attached in front of the upper surface of the main body 10. An upper member 33 is provided below the cover member 32 (see FIG. 11). In the upper member 33, holes 34 into which the upper hinge pin 31 is inserted are formed on both left and right sides.
　仕切り部１０ａの間口部分には、ヒンジピン４１が差し込まれる軸受け部４０ａおよび４０ｂが設けられている。軸受け部４０ａは、本体部１０の右側の端部近傍に設けられている。軸受け部４０ｂは、本体部１０の左側の端部近傍に設けられている。 軸 Bearings 40a and 40b into which the hinge pin 41 is inserted are provided at the frontage of the partition 10a. The bearing 40 a is provided near the right end of the main body 10. The bearing 40 b is provided near the left end of the main body 10.
　本体部１０の下端部の間口部分には、ヒンジピン６１が差し込まれる軸受け部６０ａおよび６０ｂが設けられている。軸受け部６０ａは、本体部１０の右側の端部近傍に設けられている。軸受け部６０ｂは、本体部１０の左側の端部近傍に設けられている。 の 間 Bearings 60a and 60b into which the hinge pins 61 are inserted are provided at the frontage of the lower end of the main body 10. The bearing 60a is provided near the right end of the main body 10. The bearing 60b is provided near the left end of the main body 10.
　軸受け部４０ａは、支持部材４４ａと、カバー部材４５ａとで構成されている。軸受け部４０ｂは、支持部材４４ｂと、カバー部材４５ｂとで構成されている。軸受け部４０ａと軸受け部４０ｂとは、左右対称な構成となっている。 The bearing part 40a is composed of a support member 44a and a cover member 45a. The bearing portion 40b includes a support member 44b and a cover member 45b. The bearing portion 40a and the bearing portion 40b have a left-right symmetric configuration.
　図４および図７に示すように、各軸受け部４０ａおよび４０ｂには、冷蔵庫１の前方側へ張り出した張り出し部４６が形成されている。この張り出し部４６には、中間ヒンジピン４１が差し込まれる穴４７が形成されている。また、張り出し部４６には、穴４７の斜め後方側に、第２の穴４８が形成されている。第２の穴４８には、ばね受け部材（自閉性向上部材）４２の固定ピン４２ｄ（図１０参照）が差し込まれる。固定ピン４２ｄが、軸受け部４０ａまたは４０ｂの第２の穴４８に差し込まれることで、ばね受け部材４２および中間ヒンジピン４１を、軸受け部４０ａまたは４０ｂの所定の位置に固定させることができる。 お よ び As shown in FIGS. 4 and 7, each bearing portion 40 a and 40 b has a projecting portion 46 projecting forward from the refrigerator 1. The overhang portion 46 has a hole 47 into which the intermediate hinge pin 41 is inserted. Further, a second hole 48 is formed in the overhang portion 46 at an obliquely rear side of the hole 47. The fixing pin 42d (see FIG. 10) of the spring receiving member (self-closing property improving member) 42 is inserted into the second hole 48. By inserting the fixing pin 42d into the second hole 48 of the bearing portion 40a or 40b, the spring receiving member 42 and the intermediate hinge pin 41 can be fixed at a predetermined position of the bearing portion 40a or 40b.
　軸受け部６０ａおよび軸受け部６０ｂは、軸受け部４０ａおよび軸受け部４０ｂとそれぞれ同様の構成を有している。すなわち、軸受け部６０ａは、支持部材６４ａと、カバー部材６５ａとで構成されている。軸受け部６０ｂは、支持部材６４ｂと、カバー部材６５ｂとで構成されている。軸受け部６０ａと軸受け部６０ｂとは、左右対称な構成となっている。 The bearings 60a and 60b have the same configuration as the bearings 40a and 40b, respectively. That is, the bearing portion 60a includes the support member 64a and the cover member 65a. The bearing portion 60b includes a support member 64b and a cover member 65b. The bearing part 60a and the bearing part 60b have a left-right symmetric configuration.
　図４および図７に示すように、各軸受け部６０ａおよび６０ｂには、冷蔵庫１の前方側へ張り出した張り出し部６６が形成されている。この張り出し部６６には、下方ヒンジピン６１が差し込まれる穴６７が形成されている。また、張り出し部６６には、穴６７の斜め後方側に、第２の穴６８が形成されている。第２の穴６８には、ばね受け部材（自閉性向上部材）６２の固定ピン（図示せず）が差し込まれる。固定ピンが、軸受け部６０ａまたは６０ｂの第２の穴６８に差し込まれることで、ばね受け部材６２および下方ヒンジピン６１を、軸受け部６０ａまたは６０ｂの所定の位置に固定させることができる。 お よ び As shown in FIGS. 4 and 7, each of the bearings 60 a and 60 b is provided with an overhang 66 that extends toward the front of the refrigerator 1. The overhang portion 66 has a hole 67 into which the lower hinge pin 61 is inserted. Further, a second hole 68 is formed in the overhang portion 66 at an obliquely rear side of the hole 67. The fixing pin (not shown) of the spring receiving member (self-closing property improving member) 62 is inserted into the second hole 68. By inserting the fixing pin into the second hole 68 of the bearing portion 60a or 60b, the spring receiving member 62 and the lower hinge pin 61 can be fixed at a predetermined position of the bearing portion 60a or 60b.
　また、図８に示すように、冷蔵室扉１１の底面には、ヒンジ補助部材８１ａおよび８１ｂが備えられている。ヒンジ補助部材８１ａおよび８１ｂは、扉下方部材２２に取り付けられている。具体的には、ヒンジ補助部材８１ａは、扉下方部材２２の右側の端部に取り付けられている。また、ヒンジ補助部材８１ｂは、扉下方部材２２の左側の端部に取り付けられている。ヒンジ補助部材８１ａおよび８１ｂは、左右対称の構成を有している。 Further, as shown in FIG. 8, on the bottom surface of the refrigerator compartment door 11, hinge assist members 81a and 81b are provided. The hinge assisting members 81a and 81b are attached to the door lower member 22. Specifically, the hinge auxiliary member 81a is attached to the right end of the door lower member 22. The hinge auxiliary member 81b is attached to the left end of the door lower member 22. The hinge assisting members 81a and 81b have a symmetric configuration.
　ヒンジ補助部材８１ａおよび８１ｂには、中間ヒンジピン４１が差し込まれる穴２７が設けられている。また、ヒンジ補助部材８１ａおよび８１ｂには、冷蔵室扉１１の開閉動作をより円滑に行わせるために、ばね部８２が形成されている。ばね部８２は、弾性またか可撓性を有する板ばね状に形成されている。ばね部８２の先端部分には、下方側へ突出する突起８３が設けられている。ばね部８２は、冷蔵室扉１１の開閉動作時に、ばね受け部材４２の第１棒状部４２ａの尾根形状Ａ（図９および１０など参照）に、突起８３が乗り上がることによって上方向に弾性変形する。そして、変形したばね部８２が復元しようとする力が、第１棒状部４２ａの尾根形状Ａにおける本体部１０の間口側の斜面に作用して、扉の自閉力を促進させる。 The holes 27 into which the intermediate hinge pin 41 is inserted are provided in the hinge assisting members 81a and 81b. Further, a spring portion 82 is formed on the hinge assisting members 81a and 81b in order to smoothly open and close the refrigerator compartment door 11. The spring portion 82 is formed in a leaf spring shape having elasticity or flexibility. A projection 83 projecting downward is provided at a distal end portion of the spring portion 82. The spring portion 82 is elastically deformed upward when the projection 83 rides on the ridge shape A (see FIGS. 9 and 10) of the first rod portion 42a of the spring receiving member 42 when the refrigerator compartment door 11 is opened and closed. I do. Then, the force that the deformed spring portion 82 tries to restore acts on the slope on the frontage side of the main body 10 in the ridge shape A of the first rod-shaped portion 42a, thereby promoting the self-closing force of the door.
　なお、冷凍室扉１２の扉下方部材２４にも、ヒンジ補助部材８１ａおよび８１ｂと同様の構成を有しているヒンジ補助部材が備えられている。 Note that the door lower member 24 of the freezer compartment door 12 is also provided with a hinge auxiliary member having the same configuration as the hinge auxiliary members 81a and 81b.
　冷蔵室扉１１および冷凍室扉１２が左側から開閉される構成の場合には、上方ヒンジピン３１は、本体部１０の右側の上方部に取り付けられる。また、中間ヒンジピン４１およびばね受け部材４２、並びに下方ヒンジピン６１およびばね受け部材６２は、本体部１０の右側の軸受け部４０ａおよび軸受け部６０ａにそれぞれ取り付けられる（図３および図４参照）。 In the case where the refrigerator compartment door 11 and the freezer compartment door 12 are opened and closed from the left side, the upper hinge pin 31 is attached to the upper portion on the right side of the main body 10. The intermediate hinge pin 41 and the spring receiving member 42, and the lower hinge pin 61 and the spring receiving member 62 are attached to the right bearing portion 40a and the bearing portion 60a of the main body 10, respectively (see FIGS. 3 and 4).
　一方、冷蔵室扉１１および冷凍室扉１２が右側から開閉される構成の場合には、上方ヒンジピン３１は、本体部１０の左側の上方部に取り付けられる。また、中間ヒンジピン４１およびばね受け部材４２、並びに下方ヒンジピン６１およびばね受け部材６２は、本体部１０の左側の軸受け部４０ｂおよび軸受け部６０ｂに取り付けられる（図６および図７参照）。 On the other hand, in the case where the refrigerator compartment door 11 and the freezer compartment door 12 are opened and closed from the right side, the upper hinge pin 31 is attached to the upper portion on the left side of the main body 10. In addition, the intermediate hinge pin 41 and the spring receiving member 42, and the lower hinge pin 61 and the spring receiving member 62 are attached to the left bearing portion 40b and the left bearing portion 60b of the main body 10 (see FIGS. 6 and 7).
　このように、本実施形態にかかる冷蔵庫１では、ヒンジピン３１・４１・６１、並びにばね受け部材４２および６２という一組のセットを左右に付け替えることで、冷蔵庫１の各扉１１および１２の開閉方向を左右に変更することができる。 As described above, in the refrigerator 1 according to the present embodiment, the opening and closing directions of the doors 11 and 12 of the refrigerator 1 are changed by changing the set of the hinge pins 31, 41 and 61 and the spring receiving members 42 and 62 to the left and right. Can be changed left and right.
　図１０には、中間ヒンジピン４１にばね受け部材４２を取り付けた状態を示す。図１０に示すように、ばね受け部材４２のピン挿入孔に中間ヒンジピン４１が差し込まれている。ばね受け部材４２は中間ヒンジピン４１に固定されて一体化されていてもよい。例えば、ばね受け部材４２を中間ヒンジピン４１にインサート成形することで、両者を一体化した構成とすることができる。 FIG. 10 shows a state where the spring receiving member 42 is attached to the intermediate hinge pin 41. As shown in FIG. 10, the intermediate hinge pin 41 is inserted into a pin insertion hole of the spring receiving member 42. The spring receiving member 42 may be fixed to the intermediate hinge pin 41 and integrated therewith. For example, the spring receiving member 42 is insert-molded into the intermediate hinge pin 41, so that the two can be integrated.
　扉開閉機構のヒンジ部を右側から左側、あるいは左側から右側に変更する場合には、中間ヒンジピン４１およびばね受け部材４２は、この状態で付け替えらえる。すなわち、中間ヒンジピン４１およびばね受け部材４２は、一方の軸受け部４０ａまたは４０ｂから取り外され、他方の軸受け部４０ｂまたは４０ａへ取り付けられる。 When the hinge of the door opening / closing mechanism is changed from right to left or from left to right, the intermediate hinge pin 41 and the spring receiving member 42 are replaced in this state. That is, the intermediate hinge pin 41 and the spring receiving member 42 are detached from one of the bearing portions 40a or 40b and attached to the other bearing portion 40b or 40a.
　ばね受け部材４２は、ピン挿入孔が形成されている基点部４２’から延伸する２つの棒状部（第１棒状部４２ａおよび第２棒状部４２ｂ）を有している。第１棒状部４２ａと第２棒状部４２ｂとは、基点部４２’を基準として、互いに約９０度（略直角）の位置関係に延びている（図９など参照）。また、第１棒状部４２ａおよび第２棒状部４２ｂの上面は、尾根形状Ａを有している。冷蔵室扉１１を閉じる時、この尾根形状Ａが扉側に設けられたばね部８２と作用することによって、扉の自閉力が促進される。 The spring receiving member 42 has two rod-shaped portions (a first rod-shaped portion 42a and a second rod-shaped portion 42b) extending from a base portion 42 'in which a pin insertion hole is formed. The first rod-shaped portion 42a and the second rod-shaped portion 42b extend in a positional relationship of about 90 degrees (substantially right angle) with respect to the base point 42 '(see FIG. 9 and the like). The upper surfaces of the first rod-shaped portion 42a and the second rod-shaped portion 42b have a ridge shape A. When the refrigerator compartment door 11 is closed, the ridge shape A acts on the spring portion 82 provided on the door side, thereby promoting the self-closing force of the door.
　また、第１棒状部４２ａと第２棒状部４２ｂとの間には、第１棒状部４２ａと第２棒状部４２ｂとを橋渡しするように中間部４２ｃが設けられている。中間部４２ｃには、下方へ向かって延びる固定ピン４２ｄが形成されている。上述したように、固定ピン４２ｄは、軸受け部４０ａまたは４０ｂの第２の穴４８に差し込まれる。これにより、本体部１０の軸受け部４０ａまたは４０ｂに対して、中間ヒンジピン４１およびばね受け部材４２が固定され、中間ヒンジピン４１は、冷蔵室扉１１の下方側の枢支軸および冷凍室扉１２の上方側の枢支軸となる。 中間 Further, an intermediate portion 42c is provided between the first rod portion 42a and the second rod portion 42b so as to bridge the first rod portion 42a and the second rod portion 42b. A fixing pin 42d extending downward is formed in the intermediate portion 42c. As described above, the fixing pin 42d is inserted into the second hole 48 of the bearing portion 40a or 40b. Thereby, the intermediate hinge pin 41 and the spring receiving member 42 are fixed to the bearing portion 40 a or 40 b of the main body 10, and the intermediate hinge pin 41 is connected to the pivot shaft below the refrigerator compartment door 11 and the freezer compartment door 12. It becomes the upper pivot axis.
　例えば、冷蔵室扉１１の開閉方向を左側開きから右側開きへ変更する場合には、右側の軸受け部４０ａに取り付けられた中間ヒンジピン４１およびばね受け部材４２を、左側の軸受け部４０ｂに付け替える。このとき、ばね受け部材４２を、水平方向に略９０度回転させることによって、ばね受け部材４２の配置の仕方が変更される。 For example, when the opening / closing direction of the refrigerator compartment door 11 is changed from the left opening to the right opening, the intermediate hinge pin 41 and the spring receiving member 42 attached to the right bearing 40a are replaced with the left bearing 40b. At this time, the arrangement of the spring receiving member 42 is changed by rotating the spring receiving member 42 approximately 90 degrees in the horizontal direction.
　本実施形態では、冷蔵室扉１１が左側開きのときには、第１棒状部４２ａが本体部１０の間口部分の前方側に位置している（図４参照）。これにより、第１棒状部４２ａの尾根形状Ａが扉側に設けられたばね部８２と作用し、扉の自閉力を促進させる。一方、冷蔵室扉１１が右側開きのときには、第２棒状部４２ｂが本体部１０の間口部分の前方側に位置している（図７参照）。これにより、第２棒状部４２ｂの尾根形状Ａが扉側に設けられたばね部８２と作用し、扉の自閉力を促進させる。 In the present embodiment, when the refrigerator compartment door 11 is opened to the left, the first rod-shaped portion 42a is located in front of the frontage of the main body 10 (see FIG. 4). As a result, the ridge shape A of the first rod-shaped portion 42a acts on the spring portion 82 provided on the door side to promote the self-closing force of the door. On the other hand, when the refrigerator compartment door 11 is opened to the right, the second rod-shaped portion 42b is located in front of the frontage of the main body 10 (see FIG. 7). As a result, the ridge shape A of the second rod-shaped portion 42b acts on the spring portion 82 provided on the door side to promote the self-closing force of the door.
　なお、下方ヒンジピン６１およびばね受け部材６２の構成も、図１０に示す構成と同様の構成が適用できる。すなわち、扉開閉機構のヒンジ部を右側から左側、あるいは左側から右側に変更する場合には、下方ヒンジピン６１およびばね受け部材６２を、一方の軸受け部６０ａまたは６０ｂから取り外し、他方の軸受け部６０ｂまたは６０ａへ取り付ける。このとき、ばね受け部材４２と同様に、ばね受け部材６２を、水平方向に略９０度回転させることによって、ばね受け部材６２の配置の仕方が変更される。このようにして、下方ヒンジピン６１は、冷凍室扉１２の下方側の枢支軸となる。 Note that the same configuration as the configuration shown in FIG. 10 can be applied to the configuration of the lower hinge pin 61 and the spring receiving member 62. That is, when changing the hinge portion of the door opening / closing mechanism from right to left or from left to right, the lower hinge pin 61 and the spring receiving member 62 are removed from one bearing portion 60a or 60b, and the other bearing portion 60b or Attach to 60a. At this time, similarly to the spring receiving member 42, the arrangement of the spring receiving member 62 is changed by rotating the spring receiving member 62 approximately 90 degrees in the horizontal direction. In this manner, the lower hinge pin 61 serves as a lower pivot of the freezer compartment door 12.
　そして、冷凍室扉１２が左側開きのときには、第１棒状部６２ａの尾根形状が扉側に設けられたばね部（図示せず）と作用し、扉の自閉力を促進させる。一方、冷凍室扉１２が右側開きのときには、第２棒状部６２ｂの尾根形状が扉側に設けられたばね部（図示せず）と作用し、扉の自閉力を促進させる。 When the freezer compartment door 12 is opened to the left, the ridge shape of the first bar-shaped portion 62a acts on a spring portion (not shown) provided on the door side to promote the self-closing force of the door. On the other hand, when the freezer compartment door 12 is opened to the right, the ridge shape of the second rod-shaped portion 62b acts on a spring portion (not shown) provided on the door side to promote the self-closing force of the door.
　また、図９に示すように、冷蔵庫１の中間のヒンジ部には、スペーサ部材（空間保持部）４３が設けられている。スペーサ部材４３は、より径の大きな頭部４３ａと、より径の小さな脚部４３ｂとを有している。脚部４３ｂは、冷凍室扉１２の扉上方部材２３に形成された穴２８に差し込まれる。また、頭部４３ａには、中間ヒンジピン４１が差し込まれる差し込み穴４３ｃが形成されている。スペーサ部材４３は、中間ヒンジピン４１の軸受けとして機能する。また、スペーサ部材４３は、上下に隣接して配置されている冷蔵室扉１１と冷凍室扉１２との空間を確保するためのスペーサとしての機能も果たしている。 As shown in FIG. 9, a spacer member (space holding portion) 43 is provided in the middle hinge portion of the refrigerator 1. The spacer member 43 has a head 43a having a larger diameter and a leg 43b having a smaller diameter. The leg 43b is inserted into a hole 28 formed in the door upper member 23 of the freezer compartment door 12. An insertion hole 43c into which the intermediate hinge pin 41 is inserted is formed in the head 43a. The spacer member 43 functions as a bearing for the intermediate hinge pin 41. Further, the spacer member 43 also functions as a spacer for securing a space between the refrigerator compartment door 11 and the freezer compartment door 12 which are disposed vertically adjacent to each other.
　以上のような構成を有する扉開閉機構において、冷蔵室扉１１および冷凍室扉１２の左右の開閉位置を変更する場合には、先ず、上方ヒンジピン３１、冷蔵室扉１１、中間ヒンジピン４１およびばね受け部材４２、冷凍室扉１２の順に、冷蔵庫１から取り外す。次に、下方ヒンジピン６１およびばね受け部材６２を、一方の軸受け部６０ａ（または６０ｂ）から他方の軸受け部６０ｂ（または６０ａ）へ付け替える。次に、冷凍室扉１２を下方ヒンジピン６１に対して取り付ける。このとき、下方ヒンジピン６１の上方に位置する冷凍室扉１２の扉上方部材２３に形成された穴２８に、スペーサ部材４３を付け替えておく。その後、中間ヒンジピン４１およびばね受け部材４２を、下方ヒンジピン６１と同じ側へ付け替える。 In the door opening / closing mechanism having the above-described configuration, when changing the left / right opening / closing position of the refrigerator compartment door 11 and the freezer compartment door 12, first, the upper hinge pin 31, the refrigerator compartment door 11, the intermediate hinge pin 41, and the spring support are changed. The member 42 and the freezer compartment door 12 are removed from the refrigerator 1 in this order. Next, the lower hinge pin 61 and the spring receiving member 62 are replaced from one bearing portion 60a (or 60b) to the other bearing portion 60b (or 60a). Next, the freezer compartment door 12 is attached to the lower hinge pin 61. At this time, the spacer member 43 is replaced in the hole 28 formed in the door upper member 23 of the freezer compartment door 12 located above the lower hinge pin 61. Thereafter, the intermediate hinge pin 41 and the spring receiving member 42 are replaced on the same side as the lower hinge pin 61.
　そして、図１１に示すように、冷蔵室扉１１を中間ヒンジピン４１に対して取り付けた後、冷蔵室扉１１の上方部分を本体部１０の上方部材３３へ位置合わせし、冷蔵室扉１１および上方部材３３を上方ヒンジピン３１で支持固定する。最後に、本体部１０の上面にカバー部材３２を取り付ける。 Then, as shown in FIG. 11, after attaching the refrigerator compartment door 11 to the intermediate hinge pin 41, the upper portion of the refrigerator compartment door 11 is aligned with the upper member 33 of the main body 10, and the refrigerator compartment door 11 and the upper The member 33 is supported and fixed by the upper hinge pin 31. Finally, the cover member 32 is attached to the upper surface of the main body 10.
　冷蔵室扉１１を本体部１０に対して取り付ける際には、図１１に示すように、冷蔵室扉１１の下方側が本体部１０へより近づくように冷蔵室扉１１を傾斜させる。この状態で、冷蔵室扉１１の下面に設けられたヒンジ補助部材８１ａまたは８１ｂの穴２７に対して、中間ヒンジピン４１を差し込む。 取 り 付 け る When attaching the refrigerator compartment door 11 to the main body 10, as shown in FIG. 11, the refrigerator compartment door 11 is inclined such that the lower side of the refrigerator compartment door 11 is closer to the main body 10. In this state, the intermediate hinge pin 41 is inserted into the hole 27 of the hinge auxiliary member 81a or 81b provided on the lower surface of the refrigerator compartment door 11.
　図１２には、冷蔵室扉１１の取付け時の中間ヒンジピン４１周辺の構成を拡大して示す。図１２に示すように、中間ヒンジピン４１が差し込まれる穴２７の側面（具体的には、冷蔵室扉１１の後方側の側面）には、穴の奥側へ向かって径が拡がるように傾斜した傾斜部２７ａが形成されている。また、中間ヒンジピン４１が差し込まれる穴２７の入り口部分（具体的には、冷蔵室扉１１の前方側の入り口部分）には、穴の入り口側へ向かって径が拡がるように傾斜した傾斜部２７ｂが形成されている。 FIG. 12 shows an enlarged view of the configuration around the intermediate hinge pin 41 when the refrigerator compartment door 11 is attached. As shown in FIG. 12, the side surface of the hole 27 into which the intermediate hinge pin 41 is inserted (specifically, the rear side surface of the refrigerator compartment door 11) is inclined so that the diameter increases toward the back of the hole. An inclined portion 27a is formed. In addition, the entrance portion of the hole 27 into which the intermediate hinge pin 41 is inserted (specifically, the entrance portion on the front side of the refrigerator compartment door 11) has an inclined portion 27b inclined so that the diameter increases toward the entrance side of the hole. Are formed.
　図１２では、右側のヒンジ補助部材８１ａの穴２７の形状を図示しているが、左側のヒンジ補助部材８１ｂの穴２７も同様の形状を有している。ヒンジ補助部材８１ａおよび８１ｂの各穴２７に、このような傾斜部２７ａおよび２７ｂが形成されていることで、冷蔵室扉１１を前傾させた状態で、穴２７を中間ヒンジピン４１に差し込むことができる。これにより、冷蔵室扉１１の上方部分が本体部１０の上方部材３３にぶつからずに冷蔵室扉を中間ヒンジピン４１に差し込むことができる。その後は、冷蔵室扉１１を垂直に立たせて、冷蔵室扉１１を上方ヒンジピン３１で支持固定する。このような手順で作業を行うことで、冷蔵室扉１１の取付け作業がより行い易くなる。 FIG. 12 illustrates the shape of the hole 27 of the right hinge auxiliary member 81a, but the hole 27 of the left hinge auxiliary member 81b has the same shape. By forming such inclined portions 27a and 27b in the holes 27 of the hinge assisting members 81a and 81b, the holes 27 can be inserted into the intermediate hinge pins 41 with the refrigerator compartment door 11 inclined forward. it can. Thereby, the refrigerator compartment door can be inserted into the intermediate hinge pin 41 without the upper portion of the refrigerator compartment door 11 colliding with the upper member 33 of the main body 10. Thereafter, the refrigerator compartment door 11 is set upright, and the refrigerator compartment door 11 is supported and fixed by the upper hinge pin 31. By performing the work in such a procedure, the work of mounting the refrigerator compartment door 11 becomes easier.
　また、軸受け部４０ａおよび４０ｂの支持部材４４ａおよび４４ｂと、冷凍室扉１２の扉上方部材２３との間に空間Ｃが形成されている。これにより、冷蔵室扉１１の取付け時に扉を傾斜させた場合にも、冷蔵室扉１１の下端部が冷凍室扉１２の上端部に当たることが避けられる。そして、中間ヒンジピン４１が差し込まれる冷凍室扉１２の穴２８に、スペーサ部材４３を差し込むことで、上記の空間Ｃを設けたことによる冷凍室扉１２の上下方向のガタつきを抑えることができる。 空間 A space C is formed between the support members 44a and 44b of the bearing portions 40a and 40b and the door upper member 23 of the freezer compartment door 12. This prevents the lower end of the refrigerator compartment door 11 from hitting the upper end of the freezer compartment door 12 even when the refrigerator compartment door 11 is tilted at the time of attachment. Then, by inserting the spacer member 43 into the hole 28 of the freezing compartment door 12 into which the intermediate hinge pin 41 is inserted, it is possible to prevent the freezing compartment door 12 from rattling in the vertical direction due to the provision of the space C.
　以上のように、本実施形態にかかる冷蔵庫１では、扉開閉機構のヒンジ部を構成する一部の部品を右側から左側（あるいは、左側から右側）へ付け替えることによって、各扉１１および１２の左右開きを変更することができる。この構成によれば、１台の冷蔵庫１には、各ヒンジピン３１・４１・６１、ばね受け部材４２・６２、およびスペーサ部材４３が、それぞれ一つずつ備えられていればよい。 As described above, in the refrigerator 1 according to the present embodiment, the right and left sides of each of the doors 11 and 12 are changed by changing a part of the hinge part of the door opening / closing mechanism from the right side to the left side (or from the left side to the right side). The opening can be changed. According to this configuration, one refrigerator 1 may be provided with one hinge pin 31, 41, 61, one spring receiving member 42, 62, and one spacer member 43.
　ばね受け部材４２および６２を扉の左右両側に同時につけた状態にすると、扉の開閉動作時に、開放側に位置するばね受け部材が動作の妨げになる可能性がある。これに対して、上記の構成によれば、扉の左右開きを変更する場合に、一組の部品を付け替えることで、扉の開放側には部品が存在しない状態にすることができる。したがって、扉の開閉動作をより円滑に行うことができる。そして、一組の部品を付け替えることで、非使用の部品がなくなり、非使用部品の保管や管理をしなくてもよい。 (4) If the spring receiving members 42 and 62 are simultaneously attached to the left and right sides of the door, the spring receiving members located on the open side may hinder the operation when the door is opened and closed. On the other hand, according to the above configuration, when changing the left-right opening of the door, by replacing one set of parts, it is possible to make a state in which no parts exist on the open side of the door. Therefore, the opening and closing operation of the door can be performed more smoothly. By replacing one set of components, unused components are eliminated, and it is not necessary to store and manage the unused components.
　（扉の開閉動作について）
　続いて、冷蔵室扉１１の開閉時のヒンジ部の動作を説明する。図１３には、冷蔵室扉１１が閉じている状態における中間ヒンジピン４１を含む中間のヒンジ部の構成を示す。図１４には、冷蔵室扉１１が約３０度開いている状態における中間ヒンジピン４１を含む中間のヒンジ部の構成を示す。図１３および図１４では、説明の便宜上、一部の部品を透視した状態で示す。また、以下では、冷蔵室扉１１が左側から開閉される場合を例に挙げて説明するが、冷蔵室扉１１が右側から開閉される場合にも同様の動作が適用できる。 (About door opening and closing operation)
Next, the operation of the hinge portion when the refrigerator compartment door 11 is opened and closed will be described. FIG. 13 shows a configuration of an intermediate hinge portion including the intermediate hinge pin 41 when the refrigerator compartment door 11 is closed. FIG. 14 shows a configuration of an intermediate hinge portion including the intermediate hinge pin 41 when the refrigerator compartment door 11 is opened by about 30 degrees. 13 and 14 show some components in a see-through state for convenience of explanation. In the following, a case where the refrigerator compartment door 11 is opened and closed from the left will be described as an example, but the same operation can be applied to a case where the refrigerator compartment door 11 is opened and closed from the right.
　冷蔵室扉１１が閉じられるときには、扉と本体部１０の間口部分との角度は徐々に狭まり、図１４に示すように、扉が約３０度程度開いた状態となる。このとき、冷蔵室扉１１の下面に設けられたヒンジ補助部材８１ａのばね部８２の先端部分は、ばね受け部材４２の第１棒状部４２ａへと近づく。ばね部８２の下面には、突起８３が形成されているため、ばね部８２が第１棒状部４２ａと接触した当初は、扉の閉鎖動作に対して抵抗するような力が働く。 (4) When the refrigerator compartment door 11 is closed, the angle between the door and the frontage of the main body 10 gradually decreases, and the door is opened by about 30 degrees as shown in FIG. At this time, the tip portion of the spring portion 82 of the hinge auxiliary member 81a provided on the lower surface of the refrigerator compartment door 11 approaches the first rod portion 42a of the spring receiving member 42. Since the projection 83 is formed on the lower surface of the spring portion 82, when the spring portion 82 comes into contact with the first rod portion 42a, a force acts against the closing operation of the door.
　しかし、使用者の手の動きなどによって、さらに冷蔵室扉１１を閉じる方向への力が加えられると、可撓性を有するばね部８２は、第１棒状部４２ａの上面の尾根形状Ａに乗り上げる。ばね部８２が一旦尾根形状Ａに乗り上がると、その後は、尾根形状Ａの下方への傾斜面に沿って、ばね部８２には扉を閉じる方向への力が働く。これにより、冷蔵室扉１１をよりスムーズに閉じることができる。また、この構成によれば、一旦閉じられた扉が再度本体部１０から離れることが抑制されるため、冷蔵室扉１１をより確実に閉じることができる。 However, when a force in the direction to close the refrigerator compartment door 11 is further applied by the movement of the user's hand or the like, the flexible spring portion 82 rides on the ridge shape A on the upper surface of the first rod portion 42a. . Once the spring portion 82 rides on the ridge shape A, thereafter, a force acts on the spring portion 82 in a direction to close the door along the downward inclined surface of the ridge shape A. Thereby, the refrigerator compartment door 11 can be closed more smoothly. In addition, according to this configuration, the door once closed is prevented from leaving the main body 10 again, so that the refrigerator compartment door 11 can be closed more reliably.
　このように、ばね受け部材４２は、ヒンジ補助部材８１ａのばね部８２とともに、扉の自閉力が促進させる自閉性向上部材としての機能を果たす。 As described above, the spring receiving member 42, together with the spring portion 82 of the hinge assisting member 81a, functions as a self-closability improving member that promotes the self-closing force of the door.
　冷蔵室扉１１が開けられるときには、ヒンジ補助部材８１ａのばね部８２は、上記とは逆の方向に動作する。これにより、使用者がある程度の力で冷蔵室扉１１を開けることによってばね部８２が一旦尾根形状Ａに乗り上がった後は、尾根形状Ａの下方への傾斜面に沿って、ばね部８２には扉を開ける方向への力が働く。これにより、扉の開放動作をよりスムーズに行うことができる。 (4) When the refrigerator compartment door 11 is opened, the spring portion 82 of the hinge auxiliary member 81a operates in the opposite direction. Thus, after the spring portion 82 once climbs on the ridge shape A by the user opening the refrigerator compartment door 11 with a certain force, the spring portion 82 is moved along the downward slope of the ridge shape A to the spring portion 82. Works in the direction of opening the door. Thereby, the opening operation of the door can be performed more smoothly.
　なお、尾根形状Ａの傾斜面を前後非対称としてもよい。この場合には、本体部１０の間口側に対向する側に位置する傾斜面の勾配を、反対側の傾斜面の勾配よりも急とすることが好ましい。これにより、冷蔵室扉１１が閉じられる際に、突起８３が第１棒状部４２ａの尾根形状Ａに乗り上がるのに必要な力を低減し、かつ、突起８３が尾根形状Ａに乗り上がった後は、扉を閉じる方向への力をより強く作用させることができる。 傾斜 Note that the inclined surface of the ridge shape A may be asymmetric in the front-rear direction. In this case, it is preferable that the slope of the inclined surface located on the side facing the frontage side of the main body 10 is steeper than the slope of the opposite inclined surface. Accordingly, when the refrigerator compartment door 11 is closed, the force required for the protrusion 83 to ride on the ridge shape A of the first rod-shaped portion 42a is reduced, and after the protrusion 83 rides on the ridge shape A. Can exert a stronger force in the direction of closing the door.
　以上の説明は、冷蔵室扉１１が左側から開閉される場合であるが、冷蔵室扉１１が右側から開閉される場合には、右側に付け替えられたばね受け部材４２（またはばね受け部材６２）の第２棒状部４２ｂの上面の尾根形状Ａの作用によって、扉の自閉力が促進される。すなわち、冷蔵室扉１１を閉じる時、第２棒状部４２ｂの上面の尾根形状Ａが扉側に設けられたばね部８２と作用することによって、扉の自閉力が促進される。 The above description is for the case where the refrigerator compartment door 11 is opened and closed from the left side. When the refrigerator compartment door 11 is opened and closed from the right side, the spring receiving member 42 (or the spring receiving member 62) replaced to the right side is used. The action of the ridge shape A on the upper surface of the second rod portion 42b promotes the self-closing force of the door. That is, when the refrigerator compartment door 11 is closed, the ridge shape A on the upper surface of the second rod-shaped portion 42b acts on the spring portion 82 provided on the door side, thereby promoting the self-closing force of the door.
　このように、冷蔵室扉１１が左側開きのときは、第１棒状部４２ａが扉の自閉力に影響を与える一方で第２棒状部４２ｂの形状は影響せず、冷蔵室扉１１が右側開きのときは第２棒状部４２ｂが扉の自閉力に影響を与える一方で第１棒状部４２ａの形状は影響しない。そのため、例えば、各棒状部４２ａおよび４２ｂに形成される尾根形状を上記のように非対称形状としても、互いに影響しない。 As described above, when the refrigerator compartment door 11 is opened to the left, the first rod portion 42a affects the self-closing force of the door, while the shape of the second rod portion 42b does not affect the refrigerator compartment door 11, and the refrigerator compartment door 11 moves to the right. At the time of opening, the second bar-shaped portion 42b affects the self-closing force of the door, while the shape of the first bar-shaped portion 42a does not. For this reason, for example, even if the ridge shapes formed on the rod-shaped portions 42a and 42b are asymmetrical as described above, they do not affect each other.
　なお、冷凍室扉１２の開閉時には、ヒンジピン６１を含む下方のヒンジ部が上記と同様の動作をする。すなわち、ばね受け部材６２は、扉の自閉力が促進させる自閉性向上部材としての機能を果たす。 When the freezer compartment door 12 is opened and closed, the lower hinge portion including the hinge pin 61 performs the same operation as described above. That is, the spring receiving member 62 functions as a self-closability improving member that promotes the self-closing force of the door.
　（第１の実施形態のまとめ）
　以上のように、本実施形態にかかる冷蔵庫１は、本発明の一実施形態にかかる扉開閉機構を有している。扉開閉機構は、本体部１０と、少なくとも一つの扉（すなわち、冷蔵室扉１１、冷凍室扉１２）と、ヒンジ部（すなわち、ヒンジピン４１およびばね受け部材４２、並びにヒンジピン６１およびばね受け部材６２）とを備えている。ヒンジ部は、本体部１０の左側および右側に付け替え可能に構成されている。このヒンジ部は、軸部（すなわち、ヒンジピン４１および６１）と、扉の自閉力を促進させる自閉性向上部材（すなわち、ばね受け部材４２および６２）とを有している。 (Summary of First Embodiment)
As described above, the refrigerator 1 according to the present embodiment has the door opening / closing mechanism according to the embodiment of the present invention. The door opening / closing mechanism includes a main body 10, at least one door (ie, a refrigerator compartment door 11, a freezer compartment door 12), a hinge portion (ie, a hinge pin 41 and a spring receiving member 42, and a hinge pin 61 and a spring receiving member 62). ). The hinge portion is configured to be replaceable on the left and right sides of the main body 10. This hinge portion has a shaft portion (that is, hinge pins 41 and 61) and a self-closability improving member that promotes the self-closing force of the door (that is, spring receiving members 42 and 62).
　自閉性向上部材は、本体部１０の左側に取り付けられたときと、本体部１０の右側に取り付けられたときとの間で、配置の仕方が変更されている。具体的には、左右付け替え時に水平方向に略９０度回転させることによって、ばね受け部材４２および６２の配置の仕方が変更される（図４および図７参照）。なお、本実施形態では、ばね受け部材４２を構成する２つの棒状部が、互いに約９０度（略直角）の位置関係に延びているが、これに限らず、例えば、２つの棒状部が互いに６０度など鋭角の位置関係としてもよく、または、互いに１２０度など鈍角の位置関係としてもよい。いずれの場合にも、自閉性向上部材が軸受け部からはみ出さず、かつ、自閉性向上部材として機能しない側の棒状部が扉の開閉動作に干渉しない形状および配置とすることが好ましい。 The arrangement of the self-closability improving member is changed between when it is attached to the left side of the main body 10 and when it is attached to the right side of the main body 10. More specifically, the manner in which the spring receiving members 42 and 62 are arranged is changed by rotating the spring receiving members 42 and 62 approximately 90 degrees in the horizontal direction when changing the left and right directions (see FIGS. 4 and 7). In the present embodiment, the two rod-shaped portions constituting the spring receiving member 42 extend in a positional relationship of about 90 degrees (substantially right angle) with each other. However, the present invention is not limited to this. The positional relationship may be an acute angle, such as 60 degrees, or may be an obtuse angle, such as 120 degrees. In any case, it is preferable that the self-closability improving member does not protrude from the bearing portion, and that the bar-shaped portion on the side that does not function as the self-closability improving member does not interfere with the opening and closing operation of the door.
　この構成によれば、一つのばね受け部材４２（あるいは、ばね受け部材６２）を左右に付け替えることによって、左右何れの側から扉を開閉する場合であっても、扉を閉じる動作を行うときにより確実かつ容易に扉を閉じることができる。 According to this configuration, by replacing one spring receiving member 42 (or the spring receiving member 62) to the left or right, even when the door is opened or closed from either the left or right side, the door closing operation is performed more easily. The door can be closed reliably and easily.
　また、本実施形態にかかる冷蔵庫１では、上下方向に並んで配置された２つの扉（すなわち、冷蔵室扉１１および冷凍室扉１２）の両方に、扉の自閉力を促進させる自閉性向上部材が備えられている。そのため、上下どちらの扉に関しても、扉を閉じる動作を行うときにより確実かつ容易に扉を閉じることができる。 Further, in the refrigerator 1 according to the present embodiment, both the two doors (that is, the refrigerator door 11 and the freezer door 12) arranged side by side in the up-down direction improve the self-closability to promote the self-closing force of the doors. A member is provided. Therefore, the door can be more reliably and easily closed when performing the operation of closing the door for both the upper and lower doors.
　具体的には、中間のヒンジ部を構成するばね受け部材４２が、上方に位置する冷蔵室扉１１の自閉性向上部材となり、下方のヒンジ部を構成するばね受け部材６２が、上方に位置する冷凍室扉１２の自閉性向上部材となる。また、中間のヒンジ部を構成する中間ヒンジピン４１は、上下両方の扉（すなわち、冷蔵室扉１１および冷凍室扉１２）の枢支軸となる。 Specifically, the spring receiving member 42 constituting the middle hinge portion serves as a self-closability improving member of the refrigerator compartment door 11 located above, and the spring receiving member 62 constituting the lower hinge portion is located above. It becomes a member for improving the self-closability of the freezer compartment door 12. Further, the intermediate hinge pin 41 constituting the intermediate hinge portion serves as a pivot shaft of both the upper and lower doors (that is, the refrigerator door 11 and the freezer door 12).
　なお、別の態様では、上下に隣接する扉のうち、いずれか一方のみを、左右開きを変更可能な構成の扉とし、他方の扉を引き出し式の扉としてもよい。例えば、上方の扉のみが左右開きを変更可能な構成の場合には、上方の扉のみに本発明の一実施態様にかかる扉開閉機構が備えられている。 In another aspect, only one of the vertically adjacent doors may be a door having a configuration that can be opened left and right, and the other door may be a drawer door. For example, when only the upper door is configured to be able to change the left / right opening, only the upper door is provided with the door opening / closing mechanism according to an embodiment of the present invention.
　〔第２の実施形態〕
　続いて、本発明の第２の実施形態について説明する。第２の実施形態では、冷蔵室扉の扉開閉機構を構成するばね受け部材およびばね部の構成が、第１の実施形態とは異なっている。これ以外の構成については、第１の実施形態と同様の構成が適用できる。そこで、本実施形態では、第１の実施形態とは異なる構成を中心に説明する。 [Second embodiment]
Subsequently, a second embodiment of the present invention will be described. The second embodiment differs from the first embodiment in the configuration of the spring receiving member and the spring portion that constitute the door opening / closing mechanism of the refrigerator compartment door. For other configurations, the same configuration as in the first embodiment can be applied. Thus, in the present embodiment, a description will be given focusing on a configuration different from that of the first embodiment.
　図１５および図１６には、第２の実施形態にかかる冷蔵庫１の中間のヒンジ部周辺の構成を示す。図１５は、第１の実施形態における図１３と同様の状態を示す図である。図１６は、第１の実施形態における図１４と同様の状態を示す図である。 FIGS. 15 and 16 show a configuration around an intermediate hinge portion of the refrigerator 1 according to the second embodiment. FIG. 15 is a diagram illustrating a state similar to FIG. 13 in the first embodiment. FIG. 16 is a diagram illustrating a state similar to FIG. 14 in the first embodiment.
　第２の実施形態にかかる冷蔵庫１では、冷蔵室扉１１に設けられたヒンジ補助部材１８１ａおよび１８１ｂのばね部１８２の構成が、第１の実施形態とは異なっている。具体的には、ばね部１８２には、突起８３が形成されていない点が第１の実施形態とは異なっている。 冷 蔵 庫 In the refrigerator 1 according to the second embodiment, the configuration of the spring portions 182 of the hinge assisting members 181a and 181b provided on the refrigerator compartment door 11 is different from that of the first embodiment. Specifically, the point that the projection 83 is not formed in the spring portion 182 is different from the first embodiment.
　また、第２の実施形態にかかる冷蔵庫１では、ばね受け部材１４２の構成が、第１の実施形態とは異なっている。図１７には、ばね受け部材１４２の外観を示す。図１７では、中間ヒンジピン４１にばね受け部材１４２を取り付けた状態を示す。 冷 蔵 庫 Further, in the refrigerator 1 according to the second embodiment, the configuration of the spring receiving member 142 is different from that of the first embodiment. FIG. 17 shows the appearance of the spring receiving member 142. FIG. 17 shows a state where the spring receiving member 142 is attached to the intermediate hinge pin 41.
　ばね受け部材１４２は、ピン挿入孔が形成されている基点部１４２’から延伸する２つの棒状部（第１棒状部１４２ａおよび第２棒状部１４２ｂ）を有している。第１棒状部１４２ａと第２棒状部１４２ｂとは、基点部１４２’を基準にして、互いに約９０度（略直角）の位置関係に延びている。 The spring receiving member 142 has two rod-shaped parts (first rod-shaped part 142a and second rod-shaped part 142b) extending from the base point part 142 'where the pin insertion hole is formed. The first rod-like portion 142a and the second rod-like portion 142b extend in a positional relationship of about 90 degrees (substantially right angle) with respect to the base point 142 '.
　第１棒状部１４２ａと第２棒状部１４２ｂとの間には、中間部１４２ｃが設けられている。中間部１４２ｃには、下方へ向かって延びる固定ピン１４２ｄが形成されている。第１の実施形態と同様に、固定ピン１４２ｄは、軸受け部４０ａまたは４０ｂの第２の穴４８に差し込まれる。 中間 An intermediate portion 142c is provided between the first rod portion 142a and the second rod portion 142b. A fixing pin 142d extending downward is formed in the intermediate portion 142c. As in the first embodiment, the fixing pin 142d is inserted into the second hole 48 of the bearing 40a or 40b.
　第１の実施形態で説明したばね受け部材４２では、第１棒状部４２ａおよび第２棒状部４２ｂの上面は、尾根形状Ａを有している。そして、ばね部８２（具体的には、突起８３）とばね受け部材４２（具体的には、尾根形状Ａ）とは、上下方向に当接するような構成となっている。 で は In the spring receiving member 42 described in the first embodiment, the upper surfaces of the first rod-shaped portion 42a and the second rod-shaped portion 42b have a ridge shape A. The spring portion 82 (specifically, the projection 83) and the spring receiving member 42 (specifically, the ridge shape A) are configured to abut on each other in the vertical direction.
　これに対して、第２の実施形態では、ばね部１８２とばね受け部材１４２とは、互いの先端部同士が水平方向に当接するような構成となっている（図１６参照）。使用者の手の動きなどによって、冷蔵室扉１１を閉じる方向への力が加えられると、水平方向に可撓性を有するばね部１８２は、前方側へ撓みながら第１棒状部１４２ａ（右側開きの場合には第２棒状部１４２ｂ）の先端部の後方側へ移動する。ばね部１８２が一旦第１棒状部１４２ａ（右側開きの場合には第２棒状部１４２ｂ）の後方側へ移動すると、その後は、ばね部１８２が第１棒状部１４２ａ（右側開きの場合には第２棒状部１４２ｂ）に噛みこむように動作するため、ばね部１８２には扉を閉じる方向への力が働く。これにより、冷蔵室扉１１を確実に閉じることができる。 On the other hand, in the second embodiment, the spring portion 182 and the spring receiving member 142 are configured such that their leading ends abut against each other in the horizontal direction (see FIG. 16). When a force in the direction to close the refrigerator compartment door 11 is applied by the movement of the user's hand or the like, the spring portion 182 having flexibility in the horizontal direction flexes forward and the first rod-shaped portion 142a (right-opening). In the case of (2), it moves to the rear side of the tip of the second rod-shaped portion 142b). Once the spring portion 182 moves to the rear side of the first rod portion 142a (the second rod portion 142b in the case of opening rightward), the spring portion 182 thereafter moves the first rod portion 142a (in the case of rightward opening, Since it operates so as to bite into the two rod-shaped portions 142b), a force is applied to the spring portion 182 in the direction to close the door. Thereby, the refrigerator compartment door 11 can be closed reliably.
　また、上記の構成によれば、扉の開閉動作時に上下方向の移動が抑制される。したがって、第１の実施形態と比較して、上下方向に隣接して配置される各扉（すなわち、冷蔵室扉１１および冷凍室扉１２）間の上下方向のクリアランスを小さくすることができる。また、ばね部１８２が撓む方向が水平方向であるため、ばね部１８２の撓み量の制限が少ない。したがって、より強い自閉力、および、より広い範囲での自閉作用を働かせることができる。 According to the above configuration, the movement in the vertical direction during the opening / closing operation of the door is suppressed. Therefore, as compared with the first embodiment, the vertical clearance between the doors (that is, the refrigerator door 11 and the freezer door 12) arranged vertically adjacent to each other can be reduced. Further, since the direction in which the spring portion 182 bends is the horizontal direction, the amount of deflection of the spring portion 182 is less limited. Therefore, a stronger self-closing force and a wider self-closing action can be exerted.
　なお、図示はしていないが、ヒンジピン６１を含む下方のヒンジ部を構成するばね部およびばね受け部材についても、上述のばね部１８２およびばね受け部材１４２と同様の構成が適用できる。 Although not shown, the same configuration as the above-described spring portion 182 and spring receiving member 142 can be applied to a spring portion and a spring receiving member constituting a lower hinge portion including the hinge pin 61.
　〔第３の実施形態〕
　続いて、本発明の第３の実施形態について説明する。第３の実施形態では、冷蔵室扉の扉開閉機構を構成するばね受け部材の構成が、第１の実施形態とは異なっている。これ以外の構成については、第１の実施形態と同様の構成が適用できる。そこで、本実施形態では、第１の実施形態とは異なる構成を中心に説明する。 [Third embodiment]
Subsequently, a third embodiment of the present invention will be described. In the third embodiment, the configuration of a spring receiving member that configures a door opening / closing mechanism for a refrigerator compartment door is different from that of the first embodiment. For other configurations, the same configuration as in the first embodiment can be applied. Thus, in the present embodiment, a description will be given focusing on a configuration different from that of the first embodiment.
　図１８および図１９には、第３の実施形態にかかる冷蔵庫の本体部１０の構成を示す。図１８は、冷蔵室扉１１および冷凍室扉１２が、ともに右側から開閉されるときの本体部１０の構成を示す。図１９は、冷蔵室扉１１および冷凍室扉１２が、ともに左側から開閉されるときの本体部１０の構成を示す。 FIGS. 18 and 19 show the configuration of the main body 10 of the refrigerator according to the third embodiment. FIG. 18 shows a configuration of the main body 10 when the refrigerator compartment door 11 and the freezer compartment door 12 are both opened and closed from the right side. FIG. 19 shows the configuration of the main body 10 when both the refrigerator compartment door 11 and the freezer compartment door 12 are opened and closed from the left side.
　第１の実施形態と同様に、本体部１０の仕切り部１０ａの間口部分には、ヒンジピン４１が差し込まれる軸受け部４０ａおよび４０ｂが設けられている。また、本体部１０の下端部の間口部分には、ヒンジピン６１が差し込まれる軸受け部６０ａおよび６０ｂが設けられている。 同 様 Similar to the first embodiment, bearing portions 40a and 40b into which the hinge pins 41 are inserted are provided in the frontage portion of the partition portion 10a of the main body portion 10. Further, bearing portions 60a and 60b into which the hinge pins 61 are inserted are provided in the frontage portion of the lower end portion of the main body portion 10.
　なお、第１の実施形態では、各軸受け部４０ａおよび４０ｂの張り出し部４６には、ばね受け部材４２の固定ピン４２ｄが差し込まれる第２の穴４８が形成されている。これに対して、本実施形態にかかる冷蔵庫１では、各軸受け部４０ａおよび４０ｂの張り出し部４６には、ばね受け部材２４２の貫通孔２４４に挿入される凸部２４８が形成されている。これ以外の構成については、第１の実施形態の軸受け部４０ａおよび４０ｂと同様の構成が適用できる。 In the first embodiment, a second hole 48 into which the fixing pin 42d of the spring receiving member 42 is inserted is formed in the protrusion 46 of each of the bearings 40a and 40b. On the other hand, in the refrigerator 1 according to the present embodiment, the projecting portion 248 inserted into the through hole 244 of the spring receiving member 242 is formed in the overhanging portion 46 of each of the bearing portions 40a and 40b. For other configurations, the same configuration as the bearing units 40a and 40b of the first embodiment can be applied.
　また、各軸受け部６０ａおよび６０ｂの張り出し部６６にも、同様の凸部２６８が形成されている。凸部２６８は、ばね受け部材２６２の貫通孔に挿入される。これ以外の構成については、第１の実施形態の軸受け部６０ａおよび６０ｂと同様の構成が適用できる。 同 様 Also, a similar convex portion 268 is formed on the overhang portion 66 of each of the bearing portions 60a and 60b. The protrusion 268 is inserted into a through hole of the spring receiving member 262. For other configurations, the same configuration as the bearing units 60a and 60b of the first embodiment can be applied.
　また、第３の実施形態にかかる冷蔵庫１では、ばね受け部材２４２の構成が、第１の実施形態とは異なっている。図２１には、ばね受け部材２４２の外観を示す。図２１では、中間ヒンジピン４１にばね受け部材２４２を取り付けた状態を示す。 冷 蔵 庫 Further, in the refrigerator 1 according to the third embodiment, the configuration of the spring receiving member 242 is different from that of the first embodiment. FIG. 21 shows the appearance of the spring receiving member 242. FIG. 21 shows a state where the spring receiving member 242 is attached to the intermediate hinge pin 41.
　ばね受け部材２４２は、ピン挿入孔が形成されている基点部２４２’から延伸する、１つの棒状部２４２ａを有している。棒状部２４２ａの上面には、尾根状部２４２Ａが形成されている。また、棒状部２４２ａの下面には、尾根状部２４２Ｂが形成されている。 The 受 け spring receiving member 242 has one rod-shaped portion 242a extending from the base portion 242 'in which the pin insertion hole is formed. A ridge 242A is formed on the upper surface of the rod 242a. A ridge 242B is formed on the lower surface of the rod 242a.
　また、棒状部２４２ａの後方側には、支持部２４３が形成されている。支持部２４３には、貫通孔２４４が形成されている。ばね受け部材２４２を軸受け部４０ａまたは４０ｂに取り付ける際には、この貫通孔２４４に軸受け部４０ａまたは４０ｂの凸部２４８が挿入される。これにより、本体部１０の軸受け部４０ａまたは４０ｂに対して、中間ヒンジピン４１およびばね受け部材２４２が固定される。 支持 A support portion 243 is formed on the rear side of the rod portion 242a. The support portion 243 has a through hole 244 formed therein. When attaching the spring receiving member 242 to the bearing portion 40a or 40b, the convex portion 248 of the bearing portion 40a or 40b is inserted into the through hole 244. Thus, the intermediate hinge pin 41 and the spring receiving member 242 are fixed to the bearing 40a or 40b of the main body 10.
　上記の構成を有するばね受け部材２４２は、上面と下面とが対称となるように形成されており、左右両側の軸受け部４０ａおよび４０ｂに取り付けることができる。例えば、冷蔵室扉１１の開閉方向を左側開きから右側開きへ変更する場合には、右側の軸受け部４０ａに取り付けられた、中間ヒンジピン４１およびばね受け部材２４２を、左側の軸受け部４０ｂに付け替える。このとき、図１８および図１９に示すように、ばね受け部材２４２を上下方向に反転させる（鉛直方向に約１８０度回転させる）ことによって、ばね受け部材２４２の配置の仕方が変更される。 The spring receiving member 242 having the above configuration is formed such that the upper surface and the lower surface are symmetrical, and can be attached to the left and right bearing portions 40a and 40b. For example, when changing the opening / closing direction of the refrigerator compartment door 11 from left opening to right opening, the intermediate hinge pin 41 and the spring receiving member 242 attached to the right bearing 40a are replaced with the left bearing 40b. At this time, as shown in FIGS. 18 and 19, the manner of disposing the spring receiving member 242 is changed by turning the spring receiving member 242 up and down (rotating it approximately 180 degrees in the vertical direction).
　本実施形態では、冷蔵室扉１１が左側開きのときには、棒状部２４２ａの尾根状部２４２Ａが上方側に位置している（図１８参照）。これにより、棒状部２４２ａの尾根状部２４２Ａが扉側に設けられたばね部８２と作用し、扉の自閉力を促進させる（図２０参照）。一方、冷蔵室扉１１が右側開きのときには、棒状部２４２ａの尾根状部２４２Ｂが上方側に位置している（図１９参照）。これにより、棒状部２４２ａの尾根状部２４２Ｂが扉側に設けられたばね部８２と作用し、扉の自閉力を促進させる。 In the present embodiment, when the refrigerator compartment door 11 is opened to the left, the ridge 242A of the bar 242a is located on the upper side (see FIG. 18). As a result, the ridge portion 242A of the rod portion 242a acts with the spring portion 82 provided on the door side to promote the self-closing force of the door (see FIG. 20). On the other hand, when the refrigerator compartment door 11 is opened to the right, the ridge 242B of the rod 242a is located on the upper side (see FIG. 19). As a result, the ridge-like portion 242B of the rod-like portion 242a acts on the spring portion 82 provided on the door side to promote the self-closing force of the door.
　このようにして、１つのばね受け部材２４２を、左右両側のヒンジ部の自閉性向上部材として利用することができる。 に し て Thus, one spring receiving member 242 can be used as a member for improving the self-closing property of the hinge portions on the left and right sides.
　なお、本実施形態においても、ばね受け部材２４２を中間ヒンジピン４１とは別部品とすることなく、両者が一体化された構成とすることもできる。この場合には、中間ヒンジピン４１も上下対称の形状とすることが望ましい。そして、ばね受け部材２４２および中間ヒンジピン４１を上下方向に反転させて、ばね受け部材２４２の配置の仕方を変更する。 In this embodiment, the spring receiving member 242 may be integrated with the intermediate hinge pin 41 instead of being a separate component. In this case, it is desirable that the intermediate hinge pin 41 also has a vertically symmetric shape. Then, the arrangement of the spring receiving member 242 is changed by inverting the spring receiving member 242 and the intermediate hinge pin 41 in the vertical direction.
　なお、ヒンジピン６１を含む下方のヒンジ部を構成するばね受け部材２６２については、ばね受け部材２４２と同様の構成が適用できるため、詳しい説明は省略する。 Note that the spring receiving member 262 constituting the lower hinge portion including the hinge pin 61 can apply the same configuration as that of the spring receiving member 242, and thus the detailed description is omitted.
　図２２には、第３の実施形態の変形例を示す。この変形例では、ばね受け部材２４２の棒状部３４２ａの構造が、上述の棒状部２４２ａとは異なっている。この変形例では、棒状部３４２ａの構造は、第２の実施形態で説明したばね受け部材１４２の第１棒状部１４２ａと同様の形状を有している。 FIG. 22 shows a modification of the third embodiment. In this modification, the structure of the rod portion 342a of the spring receiving member 242 is different from the above-described rod portion 242a. In this modification, the structure of the rod portion 342a has the same shape as the first rod portion 142a of the spring receiving member 142 described in the second embodiment.
　そして、ばね部１８２とばね受け部材２４２の棒状部３４２ａとは、互いの先端部同士が水平方向に当接するような構成となっている（図２２参照）。使用者の手の動きなどによって、冷蔵室扉１１を閉じる方向への力が加えられると、水平方向に可撓性を有するばね部１８２は、前方側へ撓みながら棒状部３４２ａの先端部の後方側へ移動する。ばね部１８２が一旦棒状部３４２ａの後方側へ移動すると、その後は、ばね部１８２が棒状部３４２ａに噛みこむように動作するため、ばね部１８２には扉を閉じる方向への力が働く。これにより、冷蔵室扉１１を確実に閉じることができる。 ば ね The spring portion 182 and the rod-shaped portion 342a of the spring receiving member 242 are configured such that their distal ends abut against each other in the horizontal direction (see FIG. 22). When a force in the direction of closing the refrigerator compartment door 11 is applied by a movement of the user's hand or the like, the spring portion 182 having flexibility in the horizontal direction is bent forward and backward of the distal end of the rod portion 342a. Move to the side. Once the spring portion 182 moves to the rear side of the rod portion 342a, the spring portion 182 thereafter operates to bite into the rod portion 342a, so that a force acts on the spring portion 182 in a direction to close the door. Thereby, the refrigerator compartment door 11 can be closed reliably.
　なお、変形例において、冷蔵室扉１１の開閉方向を左側開きから右側開きへ変更する場合には、第３の実施形態と同様に、右側の軸受け部４０ａに取り付けられたばね受け部材２４２を上下方向に反転させ（鉛直方向に約１８０度回転させ）ればよい。 In the modification, when the opening / closing direction of the refrigerator compartment door 11 is changed from the left opening to the right opening, the spring receiving member 242 attached to the right bearing portion 40a is moved in the vertical direction as in the third embodiment. (Rotated about 180 degrees in the vertical direction).
　〔第４の実施形態〕
　続いて、本発明の第４の実施形態について説明する。第４の実施形態では、スペーサ部材４３の代わりに中間ヒンジピン４４１を空間保持部として利用する構成例について説明する。これ以外の構成については、第１の実施形態と同様の構成が適用できる。そこで、本実施形態では、第１の実施形態とは異なる構成を中心に説明する。 [Fourth embodiment]
Subsequently, a fourth embodiment of the present invention will be described. In the fourth embodiment, a configuration example in which an intermediate hinge pin 441 is used as a space holding unit instead of the spacer member 43 will be described. For other configurations, the same configuration as in the first embodiment can be applied. Thus, in the present embodiment, a description will be given focusing on a configuration different from that of the first embodiment.
　図２３には、第４の実施形態にかかる冷蔵庫１の中間のヒンジ部周辺の断面構成を示す。本実施形態では、中間ヒンジピン４４１が冷蔵室扉１１の下方側の枢支軸となる。本実施形態では、スペーサ部材４３を介することなく、中間ヒンジピン４４１が、冷凍室扉１２の扉上方部材２３に形成された穴４２８に直接差し込まれる。 FIG. 23 shows a cross-sectional configuration around an intermediate hinge portion of the refrigerator 1 according to the fourth embodiment. In the present embodiment, the intermediate hinge pin 441 serves as a pivot on the lower side of the refrigerator compartment door 11. In this embodiment, the intermediate hinge pin 441 is directly inserted into the hole 428 formed in the door upper member 23 of the freezer compartment door 12 without the intervention of the spacer member 43.
　中間ヒンジピン４４１は、上方部４４１ａと、下方部４４１ｂとを有している。上方部４４１ａは、冷蔵庫１の本体部１０に取り付けられたときに上方側に位置し、冷蔵室扉１１の下方側に設けられた穴２７に差し込まれる。また、下方部４４１ｂは、冷蔵庫１の本体部１０に取り付けられたときに下方側に位置し、冷凍室扉１２の上方側に設けられた穴４２８に差し込まれる。 The intermediate hinge pin 441 has an upper part 441a and a lower part 441b. The upper portion 441 a is located on the upper side when attached to the main body 10 of the refrigerator 1, and is inserted into the hole 27 provided on the lower side of the refrigerator compartment door 11. The lower part 441 b is located on the lower side when attached to the main body 10 of the refrigerator 1, and is inserted into a hole 428 provided on the upper side of the freezer compartment door 12.
　図２３と図１２とを比較すればわかるように、穴４２８の深さは、穴２８の深さよりも浅くなっている。そして、中間ヒンジピン４４１の下方部４４１ｂの下部が穴４２８内に位置し、下方部４４１ｂの上部が冷凍室扉１２の上面から上方に露出している。下方部４４１ｂの上部が上方に露出していることで、軸受け部４０ａおよび４０ｂの支持部材４４ａおよび４４ｂと、冷凍室扉１２の扉上方部材２３との間に空間Ｃが形成される。つまり、この下方部４４１ｂの露出部分は、上下に隣接して配置されている冷蔵室扉１１と冷凍室扉１２との空間を確保するためのスペーサとしての機能を果たしている。 よ う As can be seen by comparing FIGS. 23 and 12, the depth of the hole 428 is shallower than the depth of the hole 28. The lower part of the lower part 441 b of the intermediate hinge pin 441 is located in the hole 428, and the upper part of the lower part 441 b is exposed upward from the upper surface of the freezer compartment door 12. Since the upper portion of the lower portion 441b is exposed upward, a space C is formed between the support members 44a and 44b of the bearing portions 40a and 40b and the door upper member 23 of the freezer compartment door 12. In other words, the exposed portion of the lower portion 441b functions as a spacer for securing a space between the refrigerator compartment door 11 and the freezer compartment door 12, which are disposed vertically adjacent to each other.
　このようなスペーサ機能が設けられていることで、第１の実施形態のスペーサ部材４３と同様の効果を得ることができる。さらに、本実施形態では、スペーサ部材が不要となるため、より簡便に各扉１１および１２の左右開きを変更することができる。 こ と By providing such a spacer function, the same effect as that of the spacer member 43 of the first embodiment can be obtained. Furthermore, in the present embodiment, since the spacer member is not required, the left and right opening of each of the doors 11 and 12 can be changed more easily.
　また、図２３に示すように、中間ヒンジピン４４１の下方部４４１ｂの径は、上方部４４１ａの径よりも大きくしてもよい。冷凍室扉１２の上方側に設けられた穴４２８の深さが浅くなる分、中間ヒンジピン４４１の下方部４４１ｂと穴４２８との係合部分の面積が小さくなるが、ヒンジピンおよび穴の径を大きくすることでこれを補償して、ヒンジ部の強度を確保することができる。また、中間ヒンジピン４４１の上方部４４１ａと下方部４４１ｂとの径を変えることで、中間ヒンジピン４４１や中間ヒンジピンに一体に形成されたばね受け部材４２が上下非対称である場合に、逆に挿すことを防止できる。 As shown in FIG. 23, the diameter of the lower portion 441b of the intermediate hinge pin 441 may be larger than the diameter of the upper portion 441a. The smaller the depth of the hole 428 provided on the upper side of the freezer compartment door 12, the smaller the area of the engaging portion between the lower part 441 b of the intermediate hinge pin 441 and the hole 428, but the larger the diameter of the hinge pin and the hole. By doing so, it is possible to compensate for this and secure the strength of the hinge portion. Also, by changing the diameter of the upper portion 441a and the lower portion 441b of the intermediate hinge pin 441, if the intermediate hinge pin 441 or the spring receiving member 42 integrally formed with the intermediate hinge pin is vertically asymmetric, it is prevented from being inserted reversely. it can.
　今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。また、本明細書で説明した異なる実施形態の構成を互いに組み合わせて得られる構成についても、本発明の範疇に含まれる。 The embodiments disclosed this time are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims. Further, configurations obtained by combining the configurations of the different embodiments described in this specification with each other are also included in the scope of the present invention.
１　　　：冷蔵庫
１０　　：本体部
１１　　：冷蔵室扉（扉）
１２　　：冷凍室扉（扉）
３１　　：上方ヒンジピン
４０ａ　：（右側の）軸受け部
４０ｂ　：（左側の）軸受け部
４１　　：中間ヒンジピン（ヒンジ部、軸部）
４２　　：ばね受け部材（ヒンジ部、自閉性向上部材）
４３　　：スペーサ部材（空間保持部）
６０ａ　：（右側の）軸受け部
６０ｂ　：（左側の）軸受け部
６１　　：下方ヒンジピン（ヒンジ部、軸部）
６２　　：ばね受け部材（ヒンジ部、自閉性向上部材）
１４２　：ばね受け部材（ヒンジ部、自閉性向上部材）
２４２　：ばね受け部材（ヒンジ部、自閉性向上部材）
４４１ｂ：（中間ヒンジピンの）下方部（空間保持部）
 
  1: Refrigerator 10: Main body 11: Refrigerator door (door)
12: Freezer door (door)
31: Upper hinge pin 40a: (Right) bearing portion 40b: (Left) bearing portion 41: Intermediate hinge pin (hinge portion, shaft portion)
42: Spring receiving member (hinge part, self-closing improving member)
43: Spacer member (space holding part)
60a: (right) bearing portion 60b: (left) bearing portion 61: lower hinge pin (hinge portion, shaft portion)
62: Spring receiving member (hinge part, self-closing improving member)
142: Spring receiving member (hinge part, self-closing improving member)
242: spring receiving member (hinge part, self-closing improving member)
441b: Lower part (space holding part) (of intermediate hinge pin)

Claims (6)

  1. 　本体部と、少なくとも一つの扉と、ヒンジ部とを備えている扉開閉機構であって、
    　前記ヒンジ部は、前記本体部の左側および右側に付け替え可能に構成されており、
    　前記ヒンジ部は、軸部と、前記扉の自閉力を促進させる自閉性向上部材とを有しており、
    　前記自閉性向上部材は、前記本体部の左側に取り付けられたときと、前記本体部の右側に取り付けられたときとの間で、配置の仕方が変更されている、
    扉開閉機構。     A door opening / closing mechanism including a main body, at least one door, and a hinge,
    The hinge portion is configured to be replaceable on the left and right sides of the main body,
    The hinge portion has a shaft portion and a self-closability improving member that promotes a self-closing force of the door,
    When the self-closability improving member is attached to the left side of the main body, and when it is attached to the right side of the main body, the arrangement is changed.
    Door opening and closing mechanism.
  2. 　前記自閉性向上部材は、左右付け替え時に水平方向に回転させることによって、前記配置の仕方が変更される構成を有している、請求項１に記載の扉開閉機構。 2. The door opening and closing mechanism according to claim 1, wherein the self-closability improving member has a configuration in which the arrangement is changed by rotating the self-closability improving member in a horizontal direction at the time of changing the right and left.
  3. 　前記自閉性向上部材は、左右付け替え時に上下方向に反転させることによって、前記配置の仕方が変更される構成を有している、請求項１に記載の扉開閉機構。 2. The door opening and closing mechanism according to claim 1, wherein the self-closability improving member has a configuration in which the arrangement manner is changed by inverting the self-closability improving member in a vertical direction at the time of right and left replacement. 3.
  4. 　上下方向に少なくとも２つの扉を備えている冷蔵庫であって、
    　前記少なくとも２つの扉の少なくとも何れか一方の扉が、請求項１から３の何れか１項に記載の扉開閉機構を有している、冷蔵庫。     A refrigerator having at least two doors in a vertical direction,
    A refrigerator, wherein at least one of the at least two doors has the door opening and closing mechanism according to any one of claims 1 to 3.
  5. 　前記少なくとも２つの扉の何れもが前記扉開閉機構を有しており、
    　前記少なくとも２つの扉のうちの隣接する２つの扉の間には、前記ヒンジ部として中間ヒンジ部が配置されており、
    　前記中間ヒンジ部の前記軸部は、前記隣接する２つの扉うちの双方の開閉時の回転軸となり、
    　前記中間ヒンジ部の前記自閉性向上部材は、前記隣接する２つの扉のうちの上方側の扉の自閉力を促進させるものである、
    請求項４に記載の冷蔵庫。     Each of the at least two doors has the door opening and closing mechanism,
    An intermediate hinge portion is arranged as the hinge portion between two adjacent doors of the at least two doors,
    The shaft portion of the intermediate hinge portion serves as a rotation axis when opening and closing both of the two adjacent doors,
    The self-closability improving member of the intermediate hinge portion promotes a self-closing force of an upper door of the two adjacent doors.
    The refrigerator according to claim 4.
  6. 　前記少なくとも２つの扉のうちの隣接する２つの扉の間には、各扉の間に空間を確保する空間保持部が設けられている、請求項５に記載の冷蔵庫。 The refrigerator according to claim 5, wherein a space holding portion that secures a space between the two doors is provided between two adjacent ones of the at least two doors.
PCT/JP2019/034325 2018-09-12 2019-09-02 Door opening-closing mechanism and refrigerator WO2020054471A1 (en)

Priority Applications (3)

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JP2020545921A JP7437309B2 (en) 2018-09-12 2019-09-02 Door opening/closing mechanism and refrigerator
CN201980057635.6A CN112654826B (en) 2018-09-12 2019-09-02 Door opening/closing mechanism and refrigerator
JP2023200419A JP2024020549A (en) 2018-09-12 2023-11-28 Door opening/closing mechanism and refrigerator

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Cited By (1)

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WO2022210481A1 (en) * 2021-04-02 2022-10-06 シャープ株式会社 Refrigerator

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JPH11248341A (en) * 1998-03-06 1999-09-14 Hoshizaki Electric Co Ltd Door device for storage cabinet
JP2001033150A (en) * 1999-07-22 2001-02-09 Matsushita Refrig Co Ltd Door opening apparatus for refrigerator
JP2008134002A (en) * 2006-11-28 2008-06-12 Hitachi Appliances Inc Refrigerator
JP2015045458A (en) * 2013-08-28 2015-03-12 株式会社東芝 Refrigerator

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JPS59170674A (en) * 1983-03-16 1984-09-26 株式会社日立製作所 Support shaft structure of door body of refrigerator
CN205174969U (en) * 2015-10-29 2016-04-20 海信容声(广东)冰箱有限公司 Cold storage plant

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11248341A (en) * 1998-03-06 1999-09-14 Hoshizaki Electric Co Ltd Door device for storage cabinet
JP2001033150A (en) * 1999-07-22 2001-02-09 Matsushita Refrig Co Ltd Door opening apparatus for refrigerator
JP2008134002A (en) * 2006-11-28 2008-06-12 Hitachi Appliances Inc Refrigerator
JP2015045458A (en) * 2013-08-28 2015-03-12 株式会社東芝 Refrigerator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022210481A1 (en) * 2021-04-02 2022-10-06 シャープ株式会社 Refrigerator

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JP7437309B2 (en) 2024-02-22
CN112654826B (en) 2022-08-09

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