WO2021129484A1 - 冰箱 - Google Patents

冰箱 Download PDF

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Publication number
WO2021129484A1
WO2021129484A1 PCT/CN2020/136813 CN2020136813W WO2021129484A1 WO 2021129484 A1 WO2021129484 A1 WO 2021129484A1 CN 2020136813 W CN2020136813 W CN 2020136813W WO 2021129484 A1 WO2021129484 A1 WO 2021129484A1
Authority
WO
WIPO (PCT)
Prior art keywords
storage rack
convex portion
storage
height position
refrigerator
Prior art date
Application number
PCT/CN2020/136813
Other languages
English (en)
French (fr)
Inventor
岩上荣生
石田贵志
Original Assignee
青岛海尔电冰箱有限公司
海尔智家股份有限公司
Aqua 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 青岛海尔电冰箱有限公司, 海尔智家股份有限公司, Aqua 株式会社 filed Critical 青岛海尔电冰箱有限公司
Priority to CN202080086110.8A priority Critical patent/CN114787569B/zh
Publication of WO2021129484A1 publication Critical patent/WO2021129484A1/zh

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Classifications

    • 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
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • 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
    • F25D23/04—Doors; Covers with special compartments, e.g. butter conditioners
    • 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
    • F25D25/00—Charging, supporting, and discharging the articles to be cooled
    • F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves

Definitions

  • the present invention relates to a refrigerator.
  • a plurality of shelves for dividing the inside of the refrigerating compartment are arranged side by side in the vertical direction.
  • a plurality of storage racks are arranged side by side in the vertical direction inside the heat-insulating door that opens and closes the front opening of the refrigerator compartment.
  • Patent Documents 1 and 2 disclose technologies that envisage the elimination of such invalid regions in the refrigerator.
  • the object of the present invention is to provide a refrigerator including a storage rack with an adjustable height provided inside the heat-insulating door, in order to seek to further flexibly and effectively utilize the storage space of the stored objects.
  • the refrigerator involved in the present invention includes:
  • the main body of the refrigerator including the storage compartment;
  • An insulated door arranged on the front side of the refrigerator body, for opening and closing the storage compartment;
  • the storage rack is arranged on the back side of the heat-insulating door and is used for storing objects to be stored;
  • a pair of ribs respectively protrude outward from the two side walls of the storage rack and extend in the height direction of the storage rack;
  • a pair of storage rack height position adjustment parts are respectively arranged on both sides of the back of the heat insulation door, and include rail grooves into which the ribs can be moved up and down;
  • a first convex portion is formed on the front wall of the rib
  • a second convex portion is formed on the rear wall of the rib
  • a plurality of first concave portions that can be engaged with the first convex portion are sequentially arranged side by side;
  • a plurality of second concave portions that can be engaged with the second convex portion are sequentially arranged side by side;
  • the storage rack moves up and down along the rail groove into which the rib is embedded, and the first convex portion reaches the height position of any one of the first concave portions while the second convex portion reaches The height position of any one of the second concave portions, the first convex portion is engaged with the first concave portion and the second convex portion is engaged with the second concave portion, so that the storage rack is fixed at The specified height position.
  • the rail groove is wider than the rib, and is raised or lowered by the rear side of the storage rack, the first convex portion and the first concave portion are engaged with each other and The engagement of the second convex portion and the second concave portion is released, and the storage rack can be moved up and down.
  • a rack extending in the height direction is provided at a designated position of the height position adjustment portion of the storage rack, wherein the storage rack includes:
  • the rotating body includes a base plate, a pinion gear provided on the surface side of the base plate and engaged with the rack, a ring portion provided on the inner side of the base plate, and side by side provided along the outer periphery of the ring portion A plurality of claws, each of the plurality of claws protrudes outward in the radial direction of the annular portion; and
  • the lock lever includes a collision convex portion that can collide with the claw portion of the rotating body, and the lock lever collides with the claw portion that rotates in conjunction with the lowering of the storage rack, and locks the claw portion Spin.
  • the claw includes:
  • An inclined surface which collides with one surface of the collision convex portion when rotating in conjunction with the ascent of the storage rack
  • a vertical surface is arranged opposite to the inclined surface, and when rotating in conjunction with the descending of the storage rack, the vertical surface collides with the other surface of the collision convex portion;
  • the one surface of the collision convex portion is inclined correspondingly to the inclined surface
  • the other surface of the collision convex portion is vertically arranged corresponding to the vertical surface
  • the bottom wall of the storage rack on the upper side is formed with a rib for preventing the storage rack from falling over to prevent the storage rack from being stored on the lower side. The storage in the overturned.
  • the refrigerator according to the present invention is further provided with a pair of elongated protruding walls, the protruding walls protruding from the back side of the heat insulation door into the storage compartment, and the height of the pair of storage racks
  • the adjusting parts are respectively installed on the inner side of the pair of protruding walls.
  • a first recessed area is provided in each of the front side regions of the two side walls of the storage rack, and the first recessed area is recessed into the inner side of the storage rack to The protruding wall is accommodated, and the pair of ribs are respectively correspondingly arranged in the first recessed area of the two side walls.
  • a first recessed area and a first recessed area further inwardly recessed from the first recessed area are provided in the front side areas of the two side walls of the storage rack.
  • Two concave regions, the rotating body and the locking lever are both arranged in the second concave region, and the locking lever is arranged above the rotating body in the same second concave region.
  • the upper surface of the second recessed area has an opening
  • one end of the lock lever is rotatably connected to the front end of the upper surface through a rotating shaft, and the lock lever can The other end side of the lock lever rotated to be accommodated in the opening of the upper surface.
  • the collision convex portion protrudes downward from the bottom of the other end side and collides with the claw portion of the rotating body.
  • the rail groove serves as a moving path in the vertical direction when the rib is inserted therein. Function, the storage rack can be moved up and down. In addition, when the storage rack is moved to a predetermined height position and the first convex portion of the rib engages with the first concave portion of the rail groove, the second convex portion of the rib engages with the second concave portion of the rail groove, so that the storage rack can be fixed.
  • the height position of the storage rack can be adjusted appropriately in accordance with the height of the stored objects stored in the storage rack, it is possible to suppress the occurrence of ineffective areas. Therefore, compared with the conventional refrigerator in which the height position of the storage rack is fixed, the storage space of the to-be-stored thing provided in the back side of the heat insulation door can be utilized effectively.
  • the height position of the storage rack can be adjusted by a simple structure such as the first and second convex portions of the ribs and the first and second concave portions of the rail groove as described above, so that it is possible to prevent the refrigerator from being raised excessively. the cost of.
  • the track groove is wider than the rib, a minute gap can be formed between the track groove and the rib.
  • the ribs in the track groove are inclined, and the first convex portion is engaged with the first concave portion and the second convex portion and the first concave portion are engaged with each other.
  • the engagement of the two recesses is released.
  • the storage rack fixed at the designated height position can be returned to a state where it can move up and down.
  • the fixing of the storage rack can be released by the simple operation as described above. Thereby, the height adjustment work of the storage rack can be easily performed.
  • the claw portion of the rotating body collides with the collision convex portion of the lock lever, and the rotation of the claw portion is locked. Therefore, in addition to the engagement structure between the first convex portion of the rib and the first concave portion of the rail groove and the engagement structure between the second convex portion of the rib and the second concave portion of the rail groove, this aspect of the present invention can also be adopted by The previously described rotation locking structure of the claw portion of the locking lever fixes the storage rack at a designated height position.
  • the present invention even if the engagement between the first convex portion of the rib and the first concave portion of the rail groove or the engagement between the second convex portion of the rib and the second concave portion of the rail groove is insufficient, it can be locked by locking
  • the rotation locking structure of the claw part of the lever prevents the storage rack from falling. As a result, it is possible to effectively prevent the accidental drop of the storage rack and the like, and to ensure safety.
  • the ascending movement of the storage rack is assisted by the engagement of the pinion gear and the rack.
  • the claw part when the storage rack is raised, since the inclined surface of the claw part collides with one surface of the collision convex part and pushes the collision convex part, the claw part is allowed to rotate in conjunction with the raising of the storage rack.
  • the vertical surface of the claw portion collides with the other surface of the collision convex portion
  • the locking claw portion rotates in conjunction with the descending of the storage rack. Therefore, according to the present invention, since the rotation of the claw part linked with the ascent of the storage rack is not hindered, the storage rack can be raised without increasing the excessive work load, and the storage rack is blocked by the lock lever. The descent linked claws rotate, so it can effectively prevent the storage rack from accidentally falling down. In this way, convenience and safety can be improved at the same time.
  • the ribs for preventing overturning can be arranged to match the height of the object to be stored. The right place. Therefore, even if storage objects of different heights are stored in the storage rack each time, the storage objects can be prevented from falling over.
  • Fig. 1 is an overall perspective view of the refrigerator according to this embodiment.
  • Fig. 2 is a perspective view of the storage rack in this embodiment.
  • Fig. 3 is a perspective view of a rotating body in this embodiment.
  • Fig. 4 is an exploded view of the storage rack in this embodiment.
  • Fig. 5 is a partial perspective view of the storage rack in the assembled state of the rotating body and the lock lever in this embodiment.
  • Fig. 6 is an explanatory diagram of a rib for preventing overturning included in the storage rack.
  • FIG. 7 is a partial perspective view of the height position adjustment part of the storage rack in this embodiment.
  • FIG. 8 is a partial schematic diagram of the height position adjustment part of the storage rack in the assembled state of the storage rack in this embodiment.
  • Fig. 9a is a schematic diagram of a state where the storage rack is fixed at a designated height position.
  • Fig. 9b is a schematic diagram of a state where the storage rack is unfixed at a designated height position.
  • Fig. 10a is a schematic diagram of the functions of the rotating body and the lock lever when the storage rack is raised in this embodiment.
  • Figure 10b is a schematic diagram of the role of the rotating body and the lock lever when the storage rack is lowered in this embodiment
  • the refrigerator 1 according to an embodiment of the present invention will be described in detail with reference to the drawings.
  • the "up and down” direction corresponds to the height direction of the refrigerator 1
  • the "left and right” direction corresponds to the width direction of the refrigerator 1
  • the "front and rear” direction corresponds to the thickness of the refrigerator 1. direction.
  • each direction of the heat insulation door is specified based on the state in which the storage room is closed by the heat insulation door.
  • the height direction (up and down direction) of the heat insulation door corresponds to the height direction of the refrigerator 1
  • the width direction (left and right direction) of the heat insulation door corresponds to the width direction of the refrigerator 1
  • the thickness direction (front and back direction) of the heat insulation door corresponds to the refrigerator 1 The thickness direction.
  • FIG. 1 is an overall perspective view of the refrigerator 1.
  • the refrigerator 1 which concerns on this embodiment includes the heat insulation box 2 which corresponds to the refrigerator main body.
  • the heat insulation box 2 includes an outer box made of a steel plate, an inner box made of synthetic resin, and a heat insulating material made of foamed polyurethane filled in the gap between the outer box and the inner box.
  • a heat-insulating partition wall is arranged inside the heat-insulating box 2 so that the refrigerating room 3, the freezing room 4, the vegetable room 5, and the like are partitioned in the heat-insulating box 2.
  • the refrigerator 1 according to this embodiment includes a plurality of storage compartments, which correspond to the refrigerating compartment 3, the freezing compartment 4, and the vegetable compartment 5 from the upper part.
  • the arrangement order of each storage chamber is not limited to this.
  • the number of storage rooms is not limited to this.
  • Each storage chamber provided in the heat-insulating box 2 has a front opening.
  • the refrigerator 1 is also provided with a heat-insulating door, which is arranged on the front side of the heat-insulating box 2 to open and close these front openings, thereby opening and closing each storage chamber.
  • the heat-insulating door 10 is rotatably connected to the heat-insulating box 2 through a hinge mechanism to open and close the front opening of the refrigerating compartment 3.
  • the hinge mechanism can be arranged at the upper and lower ends of the right end of the refrigerator 1.
  • the heat-insulating door 6 is arranged to be able to be pulled out in the front-rear direction with respect to the heat-insulating box 2 to open and close the front opening of the freezing compartment 4.
  • the heat-insulating door 7 is also arranged so as to be pulled out in the front-to-rear direction relative to the heat-insulating box 2 to open and close the front opening of the vegetable compartment 5.
  • the heat insulation door 10 shown in FIG. 1 includes: an outer packaging portion 11 having a back side (rear side) opening and having a hollow box shape; an inner packaging panel portion 12 fitted in the back side opening area of the outer packaging portion 11; and a frame body 13.
  • the frame body 13 is installed along the outer periphery of the inner packaging panel 12 and is used to seal the connection between the inner packaging panel 12 and the outer packaging part 11.
  • the inside of the heat-insulating door 10 is filled with a heat-insulating material.
  • a plurality of storage racks 20 are arranged up and down at preset intervals for storing objects to be stored. Although three storage racks 20 are shown in FIG. 1, including a storage rack fixedly disposed at the lowermost portion, the number of storage racks 20 equipped is not limited to this. In each storage rack 20, types of storage objects such as bottles such as beverages and liquid seasonings are stored.
  • the refrigerator 1 is also provided with elongated protruding walls 121a and 121b.
  • the protruding walls 121a and 121b extend from both sides of the inner packaging panel 12 into the refrigerating compartment 3, respectively.
  • a pair of storage rack height position adjusting parts 30a and 30b for adjusting the height position of the storage rack 20 are installed on the inner side of the protruding walls 121a and 121b, respectively.
  • the storage rack height position adjustment parts 30a and 30b are collectively referred to as the "storage rack height position adjustment part 30" below.
  • FIG. 2 is a perspective view of the storage rack 20.
  • FIG. 3 is a perspective view including the rotating body 22.
  • FIG. 4 is an exploded view of the storage rack 20, which shows a state in which the rotating body 22 and the lock lever 23 included in the storage rack 20 are detached from the main body of the storage rack 20.
  • FIG. 5 is a partial perspective view of the storage rack 20 when the rotating body 22 and the lock lever 23 are in an assembled state.
  • the storage rack 20 includes a pair of ribs 21a and 21b, which are respectively provided on the two side walls 20S1 and 20S2.
  • the ribs 21a and 21b are collectively referred to as "ribs 21" below.
  • first recessed areas 20S3 and 20S4 which are recessed into the inner side of the storage rack 20 to accommodate the inner packaging.
  • Two of the pair of ribs 21 are respectively correspondingly arranged in the first recessed regions 20S3 and 20S4.
  • a pair of ribs 21 respectively protrude outward from the two side walls 20S1 and 20S2 of the storage rack 20 and extend in the height direction of the storage rack 20.
  • a first convex portion 211 protruding to the front side is formed on the front wall 21F of the rib 21.
  • the rear wall 21B of the rib 21 is formed with a second convex portion 212 protruding to the rear side.
  • the number of first convex portions 211 shown in FIG. 2 is one, but the number is not limited to this.
  • the position of the first convex portion 211 is not limited to the position shown in the figure.
  • the number of second convex portions 212 shown in FIG. 2 is also one, but the number is not limited to this.
  • the position of the second convex portion 212 is not limited to the position shown in the figure.
  • the rotating body 22 includes a base plate 221, a pinion gear 222, an annular portion 223, and a plurality of claw portions 224.
  • the pinion gear 222 is provided on the surface 221F side of the substrate 221.
  • the ring portion 223 and the claw portion 224 are provided on the back surface 221B side of the substrate 221.
  • each claw portion 224 respectively protrude outward in the radial direction of the ring portion 223 and are arranged side by side along the outer circumference of the ring portion 223.
  • each claw portion 224 includes an inclined surface 224S and a vertical surface 224V.
  • the inclined surface 224S is inclined such that the width of the claw portion 224 narrows from the inner side to the outer side in the radial direction.
  • the vertical surface 224V is perpendicular to the outer peripheral surface of the ring portion 223. Stand up.
  • a pair of lock levers 23 are respectively provided in the second recessed regions 20S5 and 20S6.
  • Each lock lever 23 in this embodiment is a member that acts on the rotating body 22, and is arranged above the rotating body 22 installed in the same recessed area.
  • the upper surfaces 20S51 and 20S61 of the aforementioned second recessed regions 20S5 and 20S6 have openings, respectively.
  • the structure of the second recessed area 20S6 and the lock lever 23 assembled on the second recessed area 20S6 will be described as an example.
  • the second recessed area 20S5 and the lock lever 23 assembled on the second recessed area 20S5 will be described as an example. It also has the same structure.
  • One end side 231 of the lock lever 23 is rotatably connected to the front end portion 20S62 of the upper surface 20S61 with an opening through a rotating shaft, and the lock lever 23 is rotatable until the other end side 232 is accommodated in the opening of the upper surface 20S61 (refer to FIG. 5).
  • the position of the lock lever 23 is not limited to this.
  • the lock lever 23 includes a collision convex portion 233 that protrudes downward from the bottom of the other end side 232 and collides with the claw portion 224 of the rotating body 22.
  • the collision convex portion 233 includes one surface 233S that collides with the inclined surface 224S of the claw portion 224 and another surface 233V that is disposed opposite to the one surface 233S and collides with the vertical surface 224V of the claw portion 224.
  • One surface 233S of the collision convex portion 233 is inclined corresponding to the inclined surface 224S of the claw portion 224.
  • the other surface 233V of the collision convex portion 233 extends vertically downward from the bottom of the lock lever 23, that is, is vertically arranged, so as to correspond to the vertical surface 224V of the claw portion 224.
  • the storage rack 20 preferably includes a rib 24 for preventing overturning, so as to prevent the stored items stored in another storage rack 20 directly under one storage rack 20 from overturning.
  • the overturning prevention rib 24 in this embodiment extends downward from the bottom wall 20B of the storage rack 20, and extends to cover at least the upper front area and the side area of the object to be stored. For example, when the object to be stored is about to tip over due to any impact, its upper end collides with the overturning preventing rib 24, which prevents the overturned rib 24 and the upper end of the object from interfering with each other, thereby preventing the object from falling over. .
  • the storage rack 20 is supported by the storage rack height adjustment part 30 and can be moved up and down by the storage rack height adjustment part 30.
  • the storage racks 20 arranged adjacent to each other up and down at least the storage rack 20 arranged on the upper side can be moved to the vicinity of the upper end of the object to be stored in the lower storage rack 20.
  • the upper storage rack 20 moves up and down to arrange the ribs 24 for preventing overturning at an appropriate position.
  • the rib 24 for preventing overturning is provided in the conventional storage rack 20 fixed in the height position, it is possible to more effectively prevent the object to be stored from overturning.
  • FIG. 7 is a partial perspective view showing a part of the storage rack height position adjustment part 30.
  • FIG. 8 shows a partial schematic diagram of the storage rack height position adjusting portion 30 in the assembled state of the storage rack 20.
  • the storage rack height position adjustment part 30 has a function of supporting the storage rack 20 in a vertically movable manner and adjusting its height position. 7, more specifically, the storage rack height position adjusting portion 30 includes a rail groove 31 extending in the height direction thereof and a rack 32 extending substantially parallel to the rail groove 31.
  • the first side wall 31S1 of the track groove is recessed with a plurality of first recesses 311 that are recessed to the front side, respectively.
  • the plurality of first recesses 311 are sequentially arranged side by side along the height direction of the track groove 31.
  • the plurality of first recesses 311 shown in the figure are arranged at equal intervals, but it is not limited thereto.
  • a plurality of second recesses 312 recessed to the rear side are respectively recessed on the second side walls 31S2 of the track groove. As shown in FIG. 7, the plurality of second recesses 312 are sequentially arranged side by side along the height direction of the track groove 31. The plurality of second recesses 312 shown in the figure are arranged at equal intervals, but it is not limited thereto.
  • the rail groove 31 is wider than the rib 21 of the storage rack 20, and the rib 21 is embedded in the rail groove 31.
  • the rib 21 moves up and down, and the first convex portion 211 thereof reaches the position of the first concave portion 311 of the track groove 31. Thereby, the first convex portion 211 is engaged with the first concave portion 311.
  • the second convex portion 212 of the rib 21 reaches the position of the second concave portion 312 of the track groove 31. Thereby, the second convex portion 212 is engaged with the second concave portion 312.
  • the storage rack 20 can not only be supported on the storage rack position adjusting portion 30 by means of the ribs 21, but also can be moved to a designated arbitrary height position along the extension direction of the track groove 31, that is, the vertical direction.
  • the rack 32 of the storage rack position adjusting portion 30 in this embodiment can be engaged with the pinion gear 222 provided on the rotating body 22 of the storage rack 20.
  • the rack 32 is provided at a position opposed to the pinion gear 222.
  • the rack 32 in the present embodiment is formed along the height direction of the front outer wall 33 of the storage rack height position adjustment portion 30.
  • the pair of storage rack height position adjusting parts 30 a and 30 b in the present embodiment are arranged to be substantially parallel to the back side of the heat insulation door 10. Therefore, as long as the storage rack 20 is provided with the ribs 21a and 21b, the ribs 21a and 21b are provided with the first convex portion 211 and the second convex portion 212 to adjust the height position, and the distance between the ribs 21a and 21b is basically constant, even if The shape of the storage rack 20 is different, and it can also be applied to the storage rack height position adjustment part 30. In addition, even if the number of storage racks 20 is increased as needed, the storage rack 20 can be easily assembled to the storage rack height position adjustment portion 30.
  • the storage rack height position adjustment portion 30 is installed as a separate member inside the protruding walls 121a and 121b of the inner packaging panel portion 12, but the installation method is not limited to this.
  • the inner side of the protruding walls 121a and 121b of the inner packaging panel portion 12 is provided with a long-length recessed space in the height direction, and the recessed space serves as the rail groove 31, so that the protruding wall 121a and 121b correspond to the height position adjustment part of the storage rack.
  • the technical solution of the present invention is not limited to this.
  • FIG. 9a is the same diagram as the aforementioned FIG. 8 and shows a state where the storage rack 20 is fixed at a predetermined height position.
  • FIG. 9b shows a state where the storage rack 20 is unfixed at a designated height position.
  • the storage rack 20 after the release of the fixation returns to the state capable of moving up and down again.
  • the storage rack 20 moves up and down, and the first convex portion 211 is engaged with the other first concave portion 311 of the rail groove 31 and the second convex portion 211 is engaged with the other second concave portion 312 of the rail groove 31, so that The storage rack 20 is fixed at different height positions.
  • the height position of the storage rack 20 can be adjusted by the matching structure of the rib 21 and the track groove 31, the structure is simple and the cost can be reduced.
  • the fixing of the storage rack 20 can be released only by the work of tilting the storage rack 20, the height adjustment of the storage rack 20 can be easily performed.
  • the method of releasing the fixing of the storage rack 20 is not limited to the method shown in FIG. 9.
  • the rear side of the storage rack 20 may be lower than the front side, that is, the storage rack 20
  • the fixing of the storage rack 20 is released in a manner inclined in a direction opposite to that of FIG. 9b.
  • FIG. 10a is a diagram illustrating the functions of the rotating body 22 and the lock lever 23 when the storage rack 20 is raised.
  • FIG. 10b is a diagram illustrating the functions of the rotating body 22 and the lock lever 23 when the storage rack 20 is lowered.
  • one surface 233S is inclined corresponding to the inclined surface 224S.
  • the other end side 232 including the collision convex portion 233 of the lock lever 23 is in a state capable of rotating around the one end side 231.
  • the inclined surface 224S collides with the one surface 233S
  • the inclined surface 224S slides on the one surface 233S, and at the same time, the other end side 232 of the lock lever 23 is pushed upward by the collision pressure of the inclined surface 224S.
  • the vertical surface 224V of the claw portion 224 rises vertically from the outer peripheral surface of the ring portion 223.
  • the other surface 233V of the lock lever 23 is vertically arranged downward from the bottom of the lock lever 23.
  • the movement direction of the vertical surface 224V that collides with the other surface 233V is substantially orthogonal to the other surface 233V. Therefore, the vertical surface 224V and the other surface 233V physically interfere with each other.
  • the other surface 233V prevents further rotation of the vertical surface 224V.
  • the rotation of the pinion gear 222 also stops, and the further lowering of the storage rack 20 stops.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Refrigerator Housings (AREA)

Abstract

冰箱（1），包括收纳架高度位置调节部（30）和设于收纳架（20）的肋条（21），肋条（21）上的第一凸部（211）和第二凸部（212）分别与收纳架高度位置调节部（30）的轨道槽（31）的多个第一凹部（311）以及多个第二凹部（312）卡合，可以调节收纳架（20）的高度位置，有效活用被储存物的储存空间。

Description

冰箱 技术领域
本发明涉及冰箱。
背景技术
为了有效活用冰箱内的储存空间，例如，在上下方向上并排设有用于划分冷藏室内部的多个搁板。此外，出于同样的目的，在开闭冷藏室的前面开口的隔热门里面，在上下方向上并排设有多个收纳架。
可是在一般的冰箱中，所述搁板和收纳架的位置是固定的。与此相对地，被储存物取决于其种类或包装形态等而具有各种各样的高度。由此，在搁板或收纳架的高度位置是固定的时，被储存物与布置在其正上方的搁板或收纳架之间产生空置区域。由于该空置区域成为了无法放置被储存物的无效区域，因此阻碍了冰箱内的储存空间的有效活用。例如，在下述专利文献1和2中公开了设想消除这样的冰箱内无效区域的技术。
【现有技术文献】
【专利文献】
【专利文献1】日本特开2010-71577
【专利文献2】日本特开2005-43048
发明内容
【本发明要解决的课题】
在前述专利文献中公开的技术全部都是调节冷藏室内的搁板的高度位置的技术，而非调节设在隔热门内侧的收纳架的高度位置的技术。由于收纳架也收纳具有各种各样高度的被储存物，比如装有饮料或液体调味料等的瓶子之类，因此同样会产生前述无效区域的问题。
鉴于前述课题，本发明的目的在于提供一种冰箱，该冰箱包括设于隔热门内侧的能调节高度位置的收纳架，以便寻求进一步灵活有效地利用被储存物的储存空间。
【解决课题的手段】
为了解决前述课题，本发明所涉及的冰箱，包括：
冰箱主体，包含储存室；
隔热门，布置在所述冰箱主体的前侧，用于开闭所述储存室；
收纳架，设在所述隔热门的背侧，用于收纳被储存物；
一对肋条，分别从所述收纳架的两个侧壁中向外突出并且在所述收纳架的高度方向延伸；以及
一对收纳架高度位置调节部，分别安置在隔热门背面的两侧，并且包括使所述肋条以可上下移动的方 式嵌入其中的轨道槽；
其中，在所述肋条的前壁上形成第一凸部；
其中，在所述肋条的后壁上形成第二凸部；
其中，在所述轨道槽中的第一侧壁的高度方向上顺次地并排设有能与所述第一凸部卡合的多个第一凹部；
其中，在所述轨道槽中的第二侧壁的高度方向上顺次地并排设有能与所述第二凸部卡合的多个第二凹部；
并且，通过所述收纳架沿着所述肋条嵌入其中的所述轨道槽上下移动、并且所述第一凸部到达所述第一凹部中的任一个的高度位置同时所述第二凸部到达所述第二凹部中的任一个的高度位置，所述第一凸部与所述第一凹部卡合并且所述第二凸部与所述第二凹部卡合，使得所述收纳架固定在指定的高度位置。
另外，在本发明所涉及的冰箱中，所述轨道槽比所述肋条宽，并且通过所述收纳架的后侧上升或下降，所述第一凸部与所述第一凹部的卡合以及所述第二凸部与所述第二凹部的卡合被解除，并且使得所述收纳架能够上下移动。
另外，本发明所涉及的冰箱，在所述收纳架高度位置调节部的指定位置处设有在高度方向上延伸的齿条，其中，所述收纳架包括：
旋转体，包括基板、设在所述基板的表面侧并与所述齿条咬合的小齿轮、设在所述基板的里面侧的环状部、以及沿所述环状部的外周并排设置的多个爪部，所述多个爪部各自向所述环状部的径向外侧突出；以及
锁定杆，包括可与所述旋转体的所述爪部碰撞的碰撞凸部，所述锁定杆与跟所述收纳架的下降联动地旋转的所述爪部碰撞、并锁定所述爪部的旋转。
另外，在本发明所涉及的冰箱中，所述爪部包括：
倾斜面，在与所述收纳架的上升联动地旋转时，所述倾斜面与所述碰撞凸部的一个面碰撞；以及
垂直面，与所述倾斜面相对设置，在与所述收纳架的下降联动地旋转时，所述垂直面与所述碰撞凸部的另一个面碰撞；
其中，所述碰撞凸部的所述一个面与所述倾斜面相对应地倾斜；
其中，所述碰撞凸部的所述另一个面与所述垂直面相对应地垂直设置；
并且其中，当所述倾斜面与所述一个面碰撞时，所述倾斜面在所述一个面上滑动同时所述碰撞凸部被推动，从而容许所述爪部与所述收纳架的上升联动地旋转，另一方面，
当所述垂直面与所述另一个面碰撞时，所述垂直面与所述另一个面干涉，从而锁定所述爪部的旋转。
另外，在本发明所涉及的冰箱中，在上下相邻设置的收纳架中，在上侧的所述收纳架的底壁形成有防 止翻倒的肋条，其用于防止收纳在下侧的收纳架中的被储存物翻倒。
另外，在本发明所涉及的冰箱中，还设有一对长尺状的突出壁，所述突出壁自所述隔热门的背侧向所述储存室内突伸，所述一对收纳架高度位置调节部分别对应安装在一对所述突出壁的内侧。
另外，在本发明所涉及的冰箱中，所述收纳架的两个侧壁的前侧区域中各自设有第一凹入区域，所述第一凹入区域凹进所述收纳架的内侧以容纳所述突出壁，所述一对肋条分别对应配设在所述两个侧壁的所述第一凹入区域中。
另外，在本发明所涉及的冰箱中，所述收纳架的两个侧壁的前侧区域中各自设有第一凹入区域、以及从所述第一凹入区域进一步向内侧凹进的第二凹入区域，所述旋转体和所述锁定杆均设于所述第二凹入区域，且所述锁定杆配设在同一所述第二凹入区域的所述旋转体上方。
另外，在本发明所涉及的冰箱中，所述第二凹入区域的上表面具有开口，所述锁定杆的一端侧通过转轴转动连接于所述上表面的前端部，并且所述锁定杆可转动至所述锁定杆的另一端侧容纳在所述上表面的开口处。
另外，在本发明所涉及的冰箱中，所述碰撞凸部从所述另一端侧的底部向下突出并与所述旋转体的所述爪部碰撞。
【发明效果】
根据本发明，通过设有从收纳架的侧壁向外突出的肋条以及包括轨道槽的收纳架高度位置调节部，所述轨道槽起到在肋条嵌入其中时作为其上下方向上的移动路径的作用，可以在上下方向上移动收纳架。此外，通过收纳架移动到指定的高度位置、并且肋条的第一凸部与轨道槽的第一凹部卡合同时肋条的第二凸部与轨道槽的第二凹部卡合，可以固定收纳架。藉此，由于可以与收纳在收纳架中的被储存物的高度相适应地恰当地调节收纳架的高度位置，因此可以抑制产生无效区域的情形。于是，与收纳架的高度位置固定的现有冰箱相比，可以有效地活用设在隔热门里面侧的被储存物的储存空间。此外，可以如上所述的那样通过肋条的第一凸部和第二凸部、以及轨道槽的第一凹部和第二凹部这样的简单结构来调节收纳架的高度位置，因此可以防止过度提高冰箱的成本。
此外，根据本发明，通过轨道槽比所述肋条更宽，可以在轨道槽与肋条之间形成微小的间隙。藉此，通过收纳架的后侧与前侧相比上升或下降，轨道槽内的肋条倾斜，并且第一凸部与所述第一凹部的卡合以及所述第二凸部与所述第二凹部的卡合被解除。其结果是，固定在指定的高度位置的收纳架可以返回到能上下移动的状态。根据该形态，可以通过如上所述的简易动作来解除收纳架的固定。由此，可以容易地进行收纳架的高度调节作业。
另外，根据本发明，当收纳架要下降时，旋转体的爪部与锁定杆的碰撞凸部碰撞，并且爪部的旋转被锁定。于是，除了肋条的第一凸部与轨道槽的第一凹部的卡合以及肋条的第二凸部与轨道槽的第二凹部的 卡合结构之外，本发明的该形态还可以通过藉由前面描述的锁定杆的爪部的旋转锁定结构二者来将收纳架固定在指定的高度位置。由此，根据本发明，即使假设肋条的第一凸部与轨道槽的第一凹部的卡合或者肋条的第二凸部与轨道槽的第二凹部的卡合不足，也可以通过藉由锁定杆的爪部的旋转锁定结构来防止收纳架下降。其结果是，可以有效地预防收纳架意外落下之类的情形，并且可以担保安全性。此外，藉由小齿轮与齿条咬合的作用来辅助收纳架的上升移动。
另外，根据本发明，在收纳架上升时，由于爪部的倾斜面与碰撞凸部的一个面碰撞并推动碰撞凸部，因此容许爪部与收纳架的上升联动地旋转，另一方面，当收纳架要下降时，由于爪部的垂直面与碰撞凸部的另一个面碰撞，因此锁定爪部与收纳架的下降联动地旋转。于是，根据本发明，由于不阻碍与收纳架的上升联动的爪部旋转，因此可以在不增加过多的作业负担的情况下使收纳架上升，并且，由于藉由锁定杆来阻碍与收纳架的下降联动的爪部旋转，因此可以有效地预防收纳架意外落下之类的情形。藉此，可以同时提高便利性和安全性。
另外，根据本发明，由于可以与收纳在下侧收纳架中的被储存物的高度相适应地调节上侧收纳架的高度位置，因此可以将防止翻倒的肋条布置在与被储存物的高度相合的恰当位置。由此，即使每次在收纳架中收纳高度不同的被储存物，也可以防止被储存物翻倒。
附图说明
图1是本实施方式所涉及的冰箱的整体立体图。
图2是本实施方式中的收纳架的立体图。
图3是本实施方式中的旋转体的立体图。
图4是本实施方式中的收纳架的分解图。
图5是本实施方式中旋转体和锁定杆处于装配状态下的收纳架的局部立体图。
图6是包括在收纳架中的防止翻倒的肋条的说明图。
图7是本实施方式中的收纳架高度位置调节部的局部立体图。
图8是本实施方式中收纳架于装配状态下的收纳架高度位置调节部的局部示意图。
图9a是收纳架固定于指定高度位置的状态示意图。
图9b是收纳架于指定的高度位置处解除固定的状态示意图。
图10a是本实施方式中收纳架上升时旋转体和锁定杆的作用的示意图。
图10b是本实施方式中收纳架下降时旋转体和锁定杆的作用的示意图
具体实施方式
接下来参照附图来详细说明本发明的一个实施方式所涉及的冰箱1。此外，在对本实施方式所涉及的冰箱1进行说明时，“上下”方向对应于冰箱1的高度方向，“左右”方向对应于冰箱1的宽度方向，并且 “前后”方向对应于冰箱1的厚度方向。另外，基于隔热门关闭储存室的状态来规定隔热门的各方向。即，隔热门的高度方向(上下方向)对应于冰箱1的高度方向，隔热门的宽度方向(左右方向)对应于冰箱1的宽度方向，并且隔热门的厚度方向(前后方向)对应于冰箱1的厚度方向。
[结构]
参照图1来说明本实施方式所涉及的冰箱1的整体结构。此处，图1是冰箱1的整体立体图。如图1所示，本实施方式所涉及的冰箱1包括相当于冰箱主体的隔热箱体2。隔热箱体2包括钢板制的外箱、合成树脂制的内箱、以及填充于外箱与内箱之间的间隙中的发泡聚氨酯制的隔热材料。
在隔热箱体2的内部配设有隔热隔壁，从而在隔热箱体2中划分出冷藏室3、冷冻室4、以及蔬菜室5等。本实施方式所涉及的冰箱1包括多个储存室，其从上部开始对应为冷藏室3、冷冻室4、和蔬菜室5。然而，各储存室的布置顺序不限于此。此外，储存室的数量也不限于此。
设在隔热箱体2中的各储存室具有前部开口。冰箱1还设有隔热门，隔热门布置在隔热箱体2的前侧用以开闭这些前部开口，从而开闭各储存室。其中，隔热门10通过铰链机构转动配接于隔热箱体2用以启闭冷藏室3的前部开口，自冰箱1的正面看，铰链机构可设于冰箱1右端的上下端部。此外，隔热门6被布置成可相对于隔热箱体2在前后方向上拉出以开闭冷冻室4的前部开口。隔热门7同样被布置成可相对于隔热箱体2在前后方向上拉出以开闭蔬菜室5的前部开口。
图1所示的隔热门10包含：具有背侧(后侧)开口且呈中空箱状的外包装部11；装配在外包装部11的背侧开口区域的内包装嵌板部12；以及框体13，框体13沿着内包装嵌板部12的外周安装，并且用于密封内包装嵌板部12和外包装部11连接处。隔热门10的内部填充有隔热材料。
在装配有内包装嵌板部12的隔热门10的背侧，以预设间隔上下排布有多个收纳架20，用于收纳被储存物。尽管图1中示出了三个收纳架20，其中包括固定地设在最下部的收纳架，但是所配备的收纳架20的数量不限于此。在每个收纳架20中收纳有例如饮料或液体调味料之类的瓶子等种类的被储存物。
此外，冰箱1还设有长尺状的突出壁121a和121b，在隔热门10封闭冷藏室3的状态下，突出壁121a和121b分别从内包装嵌板部12的两侧向冷藏室3内突伸。用于调节收纳架20的高度位置的一对收纳架高度位置调节部30a和30b分别对应安装在突出壁121a和121b的内侧。此外，由于收纳架高度位置调节部30a和30b是同一构件，因此下面将收纳架高度位置调节部30a和30b统称为“收纳架高度位置调节部30”。
参照图2至图5来详细描述本实施方式所涉及的收纳架20的结构。图2是收纳架20的立体图。此外，图3是包括旋转体22的立体图。此外，图4是收纳架20的分解图，其中示出了将包括在收纳架20中的旋转体22和锁定杆23从收纳架20的主体拆下后的状态。此外，图5是旋转体22和锁定杆23处于装配状态下的收纳架20的局部立体图。
如图2所示，收纳架20包括一对肋条21a和21b，其分别对应设于两个侧壁20S1和20S2，下面将肋条21a和21b统称为“肋条21”。在本实施方式中，在收纳架20的两个侧壁20S1和20S2的前侧区域中分别对应设有第一凹入区域20S3和20S4，其凹进收纳架20的内侧，以便容纳内包装嵌板部12的突出壁121a和121b。一对肋条21中的二者分别对应配设在第一凹入区域20S3和20S4中。
一对肋条21分别从收纳架20的两个侧壁20S1和20S2向外突出并且在收纳架20的高度方向上延伸。此外，在肋条21的前壁21F形成有向前侧突出的第一凸部211。同样，在肋条21的后壁21B形成有向后侧突出的第二凸部212。图2所示的第一凸部211的个数是一个，但是该个数不限于此。此外，第一凸部211的位置也不限于图中所示的位置。同样，图2所示的第二凸部212的个数也是一个，但是该个数不限于此。此外，第二凸部212的位置也不限于图中所示的位置。
另外，在收纳架20的两个侧壁20S1和20S2中的每一个侧壁上，具体地，在从第一凹入区域20S3和20S4进一步向内侧凹进的第二凹入区域20S5和20S6处，设有旋转体22。如图3所示，旋转体22包括基板221、小齿轮222、环状部223、和多个爪部224。此处，小齿轮222设在基板221的表面221F侧。此外，环状部223和爪部224设在基板221的里面221B侧。
多个爪部224分别向环状部223的径向外侧突出，并沿着环状部223的外周排列设置。另外，每个爪部224包括倾斜面224S和垂直面224V，倾斜面224S以爪部224的宽度沿径向自内侧向外侧变窄的方式倾斜，垂直面224V从环状部223的外周面垂直立起。
另外，如图4和图5所示，一对锁定杆23分别设在第二凹入区域20S5和20S6。本实施方式中的各锁定杆23作为作用于旋转的旋转体22的构件，配设在安装于同一凹入区域的旋转体22上方。
在本实施方式中，前述第二凹入区域20S5和20S6的上表面20S51和20S61分别具有开口。下面，以第二凹入区域20S6和装配在第二凹入区域20S6上的锁定杆23的结构为例进行说明，第二凹入区域20S5和装配在第二凹入区域20S5上的锁定杆23也具有同样的结构。
锁定杆23的一端侧231通过转轴转动连接于具有开口的上表面20S61的前端部20S62，并且锁定杆23可转动至另一端侧232容纳在上表面20S61的开口处(参照图5)。然而，锁定杆23的位置不限于此。
另外，如图5所示，锁定杆23包括碰撞凸部233，碰撞凸部233从另一端侧232的底部向下突出并与旋转体22的爪部224碰撞。碰撞凸部233包括：一个面233S，其与爪部224的倾斜面224S碰撞；以及另一个面233V，其与一个面233S相对设置，并且与爪部224的垂直面224V碰撞。
碰撞凸部233的一个面233S与爪部224的倾斜面224S相对应地倾斜。此外，碰撞凸部233的另一个面233V从锁定杆23的底部向下垂直地延伸设置，也即竖直设置，从而与爪部224的垂直面224V相对应。
另外，收纳架20优选地包括防止翻倒的肋条24，以预防一收纳架20正下方的另一收纳架20中收纳的被储存物翻倒。如图6所示，本实施方式中的防止翻倒的肋条24从收纳架20的底壁20B向下延伸设置， 并延伸至覆盖被储存物的至少上端前方区域和侧方区域。例如，当被储存物由于任何冲击而即将翻倒时，其上端与防止翻倒的肋条24碰撞，防止翻倒的肋条24和被储存物的上端彼此干涉，从而防止了被储存物的翻倒。
如后所述，收纳架20支承于收纳架高度调节部30并可通过收纳架高度调节部30上下移动。由此，上下相邻设置的收纳架20中，至少布置在上侧的收纳架20能移动到收纳在下侧收纳架20中的被储存物的上端附近。
因此，当高度不同的被储存物收纳在下侧的收纳架20中时，可以藉由上侧收纳架20的上下移动来将防止翻倒的肋条24布置在恰当的位置。藉此，与在高度位置固定的传统收纳架20中设有防止翻倒的肋条24的情况相比，可以更有效地防止被储存物的翻倒。
接下来参照图7和图8来详细描述收纳架高度位置调节部30的结构。图7是示出收纳架高度位置调节部30的一部分的局部立体图。此外，图8示出了收纳架20于装配状态下的收纳架高度位置调节部30的局部示意图。
收纳架高度位置调节部30具有以可上下移动的方式支撑收纳架20并调节其高度位置的功能。参照图7，更具体地，收纳架高度位置调节部30包括沿其高度方向延伸的轨道槽31和大致平行于轨道槽31延伸的齿条32。
在本实施方式中，在轨道槽的第一侧壁31S1上分别凹设有向前侧凹进的多个第一凹部311。如图7所示，多个第一凹部311沿轨道槽31的高度方向顺次地并排设置。图中所示的多个第一凹部311以相等的间隔排列，但是不限于此。
另外，在轨道槽的第二侧壁31S2上分别凹设有向后侧凹进的多个第二凹部312。如图7所示，多个第二凹部312沿轨道槽31的高度方向顺次地并排设置。图中所示的多个第二凹部312以相等的间隔排列，但是不限于此。
如图8所示，轨道槽31比收纳架20的肋条21更宽，并且肋条21嵌入轨道槽31内。在该状态下，肋条21上下移动，并且其第一凸部211到达轨道槽31的第一凹部311的位置。藉此，第一凸部211与第一凹部311卡合。同样，肋条21的第二凸部212到达轨道槽31的第二凹部312的位置。藉此，第二凸部212与第二凹部312卡合。这样，收纳架20借助于肋条21，不仅可以支撑在收纳架位置调节部30上，而且可以沿轨道槽31的延伸方向，也即上下方向，移动至指定的任意高度位置处。
此外，如图8所示，本实施方式中的收纳架位置调节部30的齿条32可与设在收纳架20的旋转体22上的小齿轮222咬合。由此，齿条32设在与小齿轮222相对的位置。尽管没有特别限定，但是本实施方式中的齿条32是沿着收纳架高度位置调节部30的前侧外壁33的高度方向形成的。
参看图1，本实施方式中的一对收纳架高度位置调节部30a和30b设置成与隔热门10的背侧大致平行。 因此，只要收纳架20设置有肋条21a和21b、肋条21a和21b设置有配合调节高度位置的第一凸部211和第二凸部212、且肋条21a和21b之间的距离基本恒定，即便是收纳架20的形状不同，也可以适用于收纳架高度位置调节部30。此外，即使按需增加收纳架20的数量，也可以很容易地将收纳架20装配到收纳架高度位置调节部30上。
另外，在本实施方式中，收纳架高度位置调节部30是作为单独的构件安装在内包装嵌板部12的突出壁121a和121b的内侧，但其安装方式不限于此。例如，在其它实施方式中，内包装嵌板部12的突出壁121a和121b的内侧设有沿高度方向的长尺状的凹入空间，并且该凹入空间作为轨道槽31，这样，突出壁121a和121b对应于收纳架高度位置调节部。当然，本发明的技术方案并不仅限于此。
[动作]
接下来参照图9来说明收纳架20的高度位置的固定及其解除动作。此处，图9a是与前述图8相同的图，示出了收纳架20固定于指定高度位置处的状态。此外，图9b示出了收纳架20于指定的高度位置处解除固定的状态。
首先，如图9a的左图所示，当收纳架20移动到指定的高度位置时，肋条21的第一凸部211与轨道槽31的第一凹部311卡合，同时肋条21的第二凸部212与轨道槽31的第二凹部312卡合。藉此，收纳架20支撑在收纳架高度位置调节部30的轨道槽31上，并固定在指定的高度位置。
此时，如图9a的右下图所示，在肋条21的后壁21B中的与第一凸部211相对的区域21B1和轨道槽31的第二侧壁31S2之间具有间隙S1。参看图9a的右上图，在肋条21的前壁21F中的与第二凸部212相对的区域21F1和轨道槽31的第一侧壁31S1之间具有间隙S2。
在该状态下，当收纳架20如图9b的左图所示的那样倾斜时，例如后侧比前侧升高时，由于在肋条21与轨道槽31之间具有间隙S1和S2，因此，参看图9b的右上图，肋条21的上侧向前也即图的右侧活动，参看图9b的右下图，同时肋条21的下侧向后也即图的左侧活动。藉此，第一凸部211与第一凹部311之间的卡合被解除，同时第二凸部212与第二凹部312之间的卡合被解除。这样就解除了收纳架20的固定。
解除固定后的收纳架20再次返回到能上下移动的状态。接下来，收纳架20上下移动，并且第一凸部211与轨道槽31的另一个第一凹部311卡合且第二凸部211与轨道槽31的另一个第二凹部312卡合，从而可以将收纳架20固定在不同的高度位置。
根据本实施方式，由于可以藉由肋条21和轨道槽31的配合结构来调节收纳架20的高度位置，结构简单，可以降低成本。此外，由于仅通过使收纳架20倾斜的作业即可解除收纳架20的固定，因此可以简便地进行收纳架20的高度调节。
然而，解除收纳架20的固定的方式并不限于图9所示的方式。例如，若第一凸部211设在肋条21的上侧且第二凸部212设在肋条21的下侧，则可以以收纳架20的后侧比前侧更为降低，也即收纳架20以 与图9b相反的方向倾斜的方式解除收纳架20的固定。此外，还可以通过除此之外的方式解除收纳架20的固定。
接下来参照图10来说明设于收纳架20中的旋转体22和锁定杆23的作用。此处，图10a是说明收纳架20上升时旋转体22和锁定杆23的作用的图。此外，图10b是说明收纳架20下降时旋转体22和锁定杆23的作用的图。
首先，在收纳架20上升时，与收纳架高度调节部30的齿条咬合的小齿轮222旋转。与此联动地，借助于基板221而与小齿轮222联结的爪部224以图10a所示的箭头方向旋转。此时，爪部224的倾斜面224S与构成锁定杆23的碰撞凸部233的一个面233S碰撞。
如上所述，一个面233S与倾斜面224S相对应地倾斜。此外，包含锁定杆23的碰撞凸部233的另一端侧232处于能绕一端侧231旋转的状态。由此，在倾斜面224S与一个面233S碰撞之后，倾斜面224S在一个面233S上滑动，同时藉由倾斜面224S的碰撞压力来向上推动锁定杆23的另一端侧232。
于是，图10a所示的爪部224的旋转动作不会被锁定杆23所停止。这样，由于爪部224可以就这样继续旋转，因此不会阻碍收纳架20的动作。另外，藉由与收纳架高度位置调节部30的齿条32咬合的旋转体22的小齿轮222的旋转来辅助收纳架20的上升操作。
与之相对地，在收纳架20下降时，小齿轮222和爪部224以图10b所示的箭头方向旋转。此时，爪部224的垂直面224V和前述一个面233S连同构成锁定杆23的碰撞凸部233的另一个面233V碰撞。
如上所述，爪部224的垂直面224V从环状部223的外周面垂直立起。此外，锁定杆23的另一个面233V从锁定杆23的底部向下垂直设置。由此，与另一个面233V碰撞的垂直面224V的移动方向和另一个面233V大致正交。因此，垂直面224V和另一个面233V在物理上彼此干涉。其结果是，另一个面233V阻碍垂直面224V的进一步旋转。相应地，小齿轮222的旋转也停下了，于是收纳架20的进一步下降停止。
这样，藉由锁定杆23的作用而停止了收纳架20的下降。由此，即使是假设收纳架20的肋条21与收纳架高度调节部30的轨道槽31的卡合不足的情况，也可以藉由爪部224和锁定杆23的作用来预防收纳架20落下或从轨道槽31脱落之类的情形发生。
另外，在有意降低收纳架20的高度位置的情况下，进行抬起锁定杆23的另一端侧232的操作。藉此，回避了爪部224与碰撞凸部233的碰撞，并且不会阻碍图10b所示的爪部224的旋转。其结果是，小齿轮222可以在与齿条32咬合的同时旋转，并容许收纳架20下降。
上面详细说明了本发明所涉及的实施方式。然而，前述说明是为了促进对本发明的理解而给出的内容，而非是出于限定本发明的宗旨而记载的内容。本发明能够涵盖能在不脱离该宗旨的情况下进行变更或改进而得到的内容。此外，本发明涵盖其等效物。
【符号说明】
1 冰箱
10 隔热门
20 收纳架
21 肋条
211 第一凸部
212 第二凸部
22 旋转体
221 基板
222 小齿轮
223 环状部
224 爪部
224S 爪部的倾斜面
224V 爪部的垂直面
23 锁定杆
233 碰撞凸部
233S 碰撞凸部的一个面
233V 碰撞凸部的另一个面
24 防止翻倒的肋条
30 收纳架高度位置调节部
31 轨道槽
311 第一凹部
312 第二凹部
32 齿条

Claims (10)

  1. 一种冰箱，其特征在于，包括：
    冰箱主体，包含储存室；
    隔热门，布置在所述冰箱主体的前侧，用于开闭所述储存室；
    收纳架，设在所述隔热门的背侧，用于收纳被储存物；
    一对肋条，分别从所述收纳架的两个侧壁中向外突出并且在所述收纳架的高度方向上延伸；以及
    一对收纳架高度位置调节部，分别安置在隔热门背面的两侧，并且包括使所述肋条以可上下移动的方式嵌入其中的轨道槽；
    其中，在所述肋条的前壁上形成第一凸部；
    其中，在所述肋条的后壁上形成第二凸部；
    其中，在所述轨道槽中的第一侧壁的高度方向上顺次地并排设有能与所述第一凸部卡合的多个第一凹部；
    其中，在所述轨道槽中的第二侧壁的高度方向上顺次地并排设有能与所述第二凸部卡合的多个第二凹部；
    并且，通过所述收纳架沿着所述肋条嵌入其中的所述轨道槽上下移动、并且所述第一凸部到达所述第一凹部中的任一个的高度位置同时所述第二凸部到达所述第二凹部中的任一个的高度位置，所述第一凸部与所述第一凹部卡合并且所述第二凸部与所述第二凹部卡合，使得所述收纳架固定在指定的高度位置。
  2. 根据权利要求1所述的冰箱，其特征在于，所述轨道槽比所述肋条宽，并且通过所述收纳架的后侧上升或下降，所述第一凸部与所述第一凹部的卡合以及所述第二凸部与所述第二凹部的卡合被解除，并且使得所述收纳架能够上下移动。
  3. 根据权利要求1所述的冰箱，其特征在于，在所述收纳架高度位置调节部的指定位置处设有在高度方向上延伸的齿条；其中，所述收纳架包括：
    旋转体，包括基板、设在所述基板的表面侧并与所述齿条咬合的小齿轮、设在所述基板的里面侧的环状部、以及沿所述环状部的外周排列设置的多个爪部，所述多个爪部各自向所述环状部的径向外侧突出；以及
    锁定杆，包括可与所述旋转体的所述爪部碰撞的碰撞凸部，所述锁定杆与跟所述收纳架的下降联动地旋转的所述爪部碰撞、并锁定所述爪部的旋转。
  4. 根据权利要求3所述的冰箱，其特征在于，所述爪部包括：
    倾斜面，在与所述收纳架的上升联动地旋转时，所述倾斜面与所述碰撞凸部的一个面碰撞；以及
    垂直面，与所述倾斜面相对设置，在与所述收纳架的下降联动地旋转时，所述垂直面与所述碰撞凸部 的另一个面碰撞；
    其中，所述碰撞凸部的所述一个面与所述倾斜面相对应地倾斜；
    其中，所述碰撞凸部的所述另一个面与所述垂直面相对应地垂直设置；
    并且其中，当所述倾斜面与所述一个面碰撞时，所述倾斜面在所述一个面上滑动同时所述碰撞凸部被推动，从而容许所述爪部与所述收纳架的上升联动地旋转，另一方面，
    当所述垂直面与所述另一个面碰撞时，所述垂直面与所述另一个面干涉，从而锁定所述爪部的旋转。
  5. 根据权利要求1所述的冰箱，其特征在于，在上下相邻设置的收纳架中，在上侧的所述收纳架的底壁形成有防止翻倒的肋条，其用于防止收纳在下侧的收纳架中的被储存物翻倒。
  6. 根据权利要求1所述的冰箱，其特征在于，还设有一对长尺状的突出壁，所述突出壁自所述隔热门的背侧向所述储存室内突伸，所述一对收纳架高度位置调节部分别对应安装在一对所述突出壁的内侧。
  7. 根据权利要求6所述的冰箱，其特征在于，所述收纳架的两个侧壁的前侧区域中各自设有第一凹入区域，所述第一凹入区域凹进所述收纳架的内侧以容纳所述突出壁，所述一对肋条分别对应配设在所述两个侧壁的所述第一凹入区域中。
  8. 根据权利要求3所述的冰箱，其特征在于，所述收纳架的两个侧壁的前侧区域中各自设有第一凹入区域、以及从所述第一凹入区域进一步向内侧凹进的第二凹入区域，所述旋转体和所述锁定杆均设于所述第二凹入区域，且所述锁定杆配设在同一所述第二凹入区域的所述旋转体上方。
  9. 根据权利要求8所述的冰箱，其特征在于，所述第二凹入区域的上表面具有开口，所述锁定杆的一端侧通过转轴转动连接于所述上表面的前端部，并且所述锁定杆可转动至所述锁定杆的另一端侧容纳在所述上表面的开口处。
  10. 根据权利要求9所述的冰箱，其特征在于，所述碰撞凸部从所述另一端侧的底部向下突出并与所述旋转体的所述爪部碰撞。
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