EP2600087B1 - Refrigerator - Google Patents
Refrigerator Download PDFInfo
- Publication number
- EP2600087B1 EP2600087B1 EP11812078.1A EP11812078A EP2600087B1 EP 2600087 B1 EP2600087 B1 EP 2600087B1 EP 11812078 A EP11812078 A EP 11812078A EP 2600087 B1 EP2600087 B1 EP 2600087B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- container
- locking member
- refrigerator
- rail
- holed
- Prior art date
- Legal status (The legal status 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 status listed.)
- Not-in-force
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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
- F25D25/00—Charging, supporting, and discharging the articles to be cooled
- F25D25/02—Charging, supporting, and discharging the articles to be cooled by shelves
- F25D25/024—Slidable shelves
- F25D25/025—Drawers
Definitions
- the present invention relates to refrigerators, and particularly to a refrigerator including a container attached onto rails so as to be movable back and forth.
- FIG. 9 is a longitudinal sectional view of a conventional refrigerator 1.
- a container 7 included in the refrigerator 1 illustrated in FIG. 9 has an engagement portion (attachment portion) in direct engagement with a locking member (not illustrated) fixed to a metallic rail (not illustrated) provided inside of the refrigerator 1 (see Patent Literature 1 for an example).
- Patent Literature 2 discloses a refrigerator according to the preamble of claim 1 and describes a drawer assembly for a refrigerator which comprises compartment walls defining a cooling compartment.
- the drawer assembly includes a pan having a mounting portion, and a bracket coupled to one of the compartment walls.
- the bracket made of metal includes a locking mechanism movable between a first position and a second position.
- the pan is mounted to the bracket such that the locking mechanism engages the mounting portion of the pan.
- the engagement portion of the container 7 is likely to have a crack due to contacting with the locking member when the container 7 is moved back and forth, and may even drop off due to a load of items in the container 7.
- the present invention conceived to address the problem, has an object of providing a refrigerator which includes a container having a cracking-proof attachment portion for attaching the container onto a rail.
- the refrigerator according to the present invention has a reinforcing member interposed between a container and a rail, so that a refrigerator in which engagement portions having increased supporting force can be provided.
- a refrigerator includes: a heat-insulating main body including an inner case, an outer case, and a foam insulating material filling a space between the inner case and the outer case, the heat-insulating main body having a front opening; a container having a top opening; and a rail which allows the container to move back and forth with respect to the inner case.
- the rail includes a fixed rail and a movable rail which are slidably coupled.
- the fixed rail is fastened to the inner case of the heat-insulating main body.
- the movable rail includes a locking member for locking with the container.
- the container includes an engagement portion which engages with the locking member of the movable rail.
- the refrigerator further includes a reinforcing member provided between the locking member and the engagement portion for retaining engagement between the container and the movable rail. With this, the engagement portion has an increased strength, so that breakage of the engagement portion can be prevented.
- the locking member is made of metal.
- the engagement portion is made of plastic.
- the reinforcing member is made of plastic which is softer than the engagement portion. This prevents the engagement portion of the container from being cracked by the locking member made of metal.
- the engagement portion may be formed integrally with a lateral part of the container.
- the locking member may have a protrudent shape to protrude upward beyond the movable rail.
- the reinforcing member may be positioned where the locking member and the holed portion are expected to come into direct contact with each other when the locking member is directly inserted in the holed portion from underneath, and the reinforcing member thereby may be in direct contact with the locking member. Since the reinforcing member is in direct contact with the locking member, the engagement portion is prevented from being damaged such as being cracked.
- the locking member may include a riser portion extending upward and a projection portion projecting from the riser portion either forward or backward.
- the projection portion may be locked on an upper end of the holed portion in the engagement portion.
- FIG. 1 is a longitudinal sectional view of a refrigerator according to Embodiment 1 of the present invention.
- FIG. 2 is a frontal view of a main body of the refrigerator according to Embodiment 1 of the present invention.
- FIG. 3 is a schematic view of an air flow path in Embodiment 1 of the present invention.
- FIG. 4 is an oblique perspective view of the main body of the refrigerator according to Embodiment 1 of the present invention.
- FIG. 5 is an oblique perspective view of a container and rails.
- FIG. 6 is an exploded oblique perspective view of the container and rails shown in FIG. 5 .
- FIG. 7A and FIG. 7B schematically show a principal mechanism in Embodiment 1 of the present invention.
- FIG. 8 is an oblique perspective view of the principal mechanism in Embodiment 1 of the present invention.
- a heat-insulating main body 31 of a refrigerator 30 includes an outer case 32 mainly made of a steel sheet and an inner case 33 molded of a plastic, such as acrylonitrile butadiene styrene (ABS).
- ABS acrylonitrile butadiene styrene
- the space between the outer case 32 and the inner case 33 is filled with a foam insulating material, such as solid urethane foam, for thermal insulation from ambient temperature.
- the space inside the inner case 33 is segmented into storage compartments.
- FIG. 1 shows an exemplary configuration of the storage compartments: a refrigerator compartment 35 at the top; a convertible compartment 36 below the refrigerator compartment 35; and a freezer compartment 37 at the bottom.
- the refrigerator compartment 35 has a front opening at which a refrigerator compartment door 38 is provided.
- the convertible compartment 36 has a front opening at which a convertible compartment door 39 is provided.
- the freezer compartment 37 has a front opening at which a freezer compartment door 40 is provided. The doors are attached thereto so as to be opened and closed individually.
- the refrigerator compartment 35 is set at a non-freezing temperature even at the lowest, generally within a range from 1°C to 5°C.
- the convertible compartment 36 can be set at a temperature switchably between freezing temperatures and refrigeration temperatures within a range from -18°C to 4°C by a degree.
- the freezer compartment 37 is generally set at a freezing temperature ranging from -22°C to -15°C, and optionally at a lower temperature, for example, a temperature ranging from -30°C to -25°C for a better preservation state of items in a frozen condition.
- the convertible compartment 36 and the freezer compartment 37 are vertically partitioned by a first partition 41.
- the refrigerator compartment 35 and the convertible compartment 36 are vertically partitioned by a second partition 42.
- a cooling chamber 43 where cool air is generated is provided behind the freezer compartment 37.
- a cooler 44 is provided inside the cooling chamber 43.
- the cooling chamber 43 is separated from the freezer compartment 37 by a cover coil 45 which also provides thermal insulation therebetween.
- a fan is provided above the cooler 44.
- the fan 46 forcibly causes a flow of cool air generated by the cooler 44.
- a defrost heater 47 is provided below the cooler 44. The defrost heater removes frost and ice from the cooler 44.
- the defrost heater 47 is a glass tube heater.
- a refrigerant used is hydrocarbon refrigerant gas
- a double glass tube heater including double-layered glass tubes is used as the defrost heater 47 for explosion prevention.
- the cover coil 45 includes, for example, a plastic decorative plate (not illustrated in the drawings) and a heat insulating member (not illustrated in the drawings) which supports the fan 46 and forms a path for cool air.
- the heat insulating member is made of a heat insulating material such as polystyrene foam.
- a duct system 49 is provided behind the convertible compartment 36.
- the duct system includes an air supply duct 48 through which cool air is supplied to the refrigerator compartment 35 and the convertible compartment 36.
- the air supply duct 48 includes a refrigerator compartment air supply duct 48a and a convertible compartment air supply duct 48b arranged side by side and extending vertically in the duct system 49. Cool air is supplied to the refrigerator compartment 35 through the refrigerator compartment air supply duct 48a and to the convertible compartment 36 through the convertible compartment air supply duct 48b.
- the duct system 49 includes a damper device in a buried condition.
- the damper device 50 is a device for adjusting the rate of air flow to the refrigerator compartment 35 and the convertible compartment 36 by individually controlling the flow rate of cool air flowing through the refrigerator compartment air supply duct 48a and the flow rate of cool air flowing through the convertible compartment air supply duct 48b.
- an upper container 69 and a lower container 70 are arranged vertically in two tiers.
- the upper container 69 and the lower container 70 each have a top opening, and are movable back and forth.
- An upper inlet 36a from which cool air is discharged into the convertible compartment 36 is provided above the top opening of the upper container 69.
- a lower inlet 36b from which cool air is discharged into the convertible compartment 36 is provided above the open top of the lower container 70 and below a bottom face of the upper container 69.
- the upper container 69 and the lower container 70 are housed in the convertible compartment 36 in two tiers.
- the refrigerator compartment door 38, convertible compartment door 39, and freezer compartment door 40 are not illustrated in FIG. 4 .
- the upper container 69 and the lower container 70 are both pulled open.
- Each of the upper container 69 and the lower container 70 is coupled with the convertible compartment 36 by means of rails 80 so as to be movable back and forth with respect to the inner case 33.
- Each of the rails 80 includes a fixed rail 80a, a movable rail 80b, and a plurality of bearings (not illustrated in the drawings) provided between the fixed rail 80a and the movable rail 80b.
- the fixed rails 80a, the movable rails 80b, and the bearings are assembled into the rails 80 such that the fixed rail 80a and the movable rail 80b of each of the rails 80 are slidable along each other.
- the upper container 69 is coupled with the convertible compartment 36 so as to be movable back and forth with respect to the inner case 33, by fastening the fixed rails 80a to lateral walls of the inner case 33 facing the storage compartment (convertible compartment 36), and fastening the movable rails 80b to the upper container 69.
- the lower container 70 is also coupled with the convertible compartment 36 by means of rails 80 so as to be movable back and forth with respect to the inner case 33. Accordingly, in the one convertible compartment 36, two sets of the rails 80, that is, an upper set and a lower set are provided on the lateral walls facing the convertible compartment 36, and the upper container 69 and the lower container 70 are movable back and forth independently from each other.
- the rails 80 fastened to the lateral walls of the inner case 33 facing the convertible compartment 36 are laterally symmetrical and provided on both sides of the inner case 33 so that the rails 80 has higher slidability for a back-and-forth motion of the upper container 69.
- the upper container 69 is engaged with locking members 81 fastened to the movable rails 80b with hooks or screws or fixed by, for example, welding so that the upper container 69 can move together with the movable rail 80b. Furthermore, when the upper container 69 is fully open (pulled out all the way), the upper container 69 is detachable by lifting it from the inner case 33.
- the upper container 69 has flange parts 69a on its outer lateral walls.
- the flange parts 69a protrude outward from the outer lateral walls and extend along the front-back direction of the upper container 69.
- Each of the flange parts 69a is provided with flange reinforcement ribs 69c for reinforcement of the flange parts 69a.
- the flange reinforcement ribs 69c are approximately perpendicular to the longitudinal direction of the flange part 69a and connect the flange parts 69a and the outer lateral walls of the upper container 69.
- Each of the flange parts 69a further has holed portions in at least two portions including a front portion and a rear portion.
- the holed portions 69b each has an opening having an approximately rectangular shape and vertically penetrating through the flange part 69a.
- the holed portions 69b serve as the engagement portions for engagement between the upper container 69 and the rails 80. More specifically, the upper container 69 and the rails 80 are engaged with each other by setting the locking members 81 provided on the movable rails 80b in the holed portions 69b of the flange parts 69a.
- the locking members 81 are inserted from underneath into the holed portions 69b having reinforcing members 82 set in the respective holed portions 69b.
- the reinforcing members 82 are interposed between the holed portions 69b and the respective locking members 81.
- the fixed rails 80a and the movable rails 80b are metallic rails.
- the upper container 69 is a transparent plastic case, which is, more specifically, made of general-purpose polystyrene (GPPS) widely used for transparent items.
- the locking members 81 are also metallic parts. Peripheral portions of the respective holed portions 69b in the flange part 69a are made of the same material as the upper container 69, and therefore may be broken in a back-and-forth motion of the upper container 69 when the upper container 69 is fastened with the locking members 81 directly inserted in the holed portions 69b.
- the reinforcing members 82 made of plastic softer than the material of the holed portions 69b, such as polypropylene resin (PP resin), are interposed between the holed portions 69b and the locking members 81.
- each of the reinforcing members 82 is formed as an integrated combination of a protrusion portion 82a and a support portion 82b.
- the protrusion portion 82a can be set in the holed portion 69b.
- the support portion 82b is supported on the top face of the movable rail 80b. More specifically, the protrusion portion 82a protrudes upward beyond the top face of the support portion 82b.
- the protrusion portion 82a has an opening 82c vertically penetrating through the protrusion portion 82a.
- the support portion 82b has an approximately rectangular shape which is larger than the protrusion portion 82a in projected area (as viewed from above or below).
- the protrusion portion 82a is set in the holed portion 69b. At this time, the top end of the protrusion portion 82a is above the top end of the holed portion 69b, and the peripheral portion of the holed portion 69b is covered with the protrusion portion 82a. Then, the locking member 81 is inserted in the opening 82c provided in the protrusion portion 82a.
- the locking member 81 inserted in the opening 82c is in direct contact not with the peripheral portion of the holed portion 69b but with the reinforcing member 82.
- the locking member 81 which is made of metal, is in contact with the reinforcing member 82, which is made of PP resin, so that the peripheral portion of the holed portion 69b of the upper container 69 can be prevented from being damaged in a back-and-forth motion of the upper container 69.
- the locking members 81 are provided in at least two portions of each of the movable rails 80b including a free end portion (front portion) and a fixed end portion (rear portion) of the movable rail 80b so as to correspond to the holed portions 69b.
- Each of the locking members 81 is formed as an integrated combination of a fastening portion 81a, a riser portion 81b, and a projection portion 81c.
- the fastening portion 81a rises from the top face of the movable rail 80b.
- the riser portion 81b further rises from the fastening portion 81a and is shorter in depth (the depth refers to the longitudinal direction of the movable rail 80b, that is, the front-back direction) than the fastening portion 81a.
- the projection portion 81c is positioned above the riser portion 81b and projects from the riser portion 81b either forward or backward along the longitudinal direction of the movable rail 80b (forward in this example).
- the fastening portion 81a is configured to have a depth dimension almost identical to a longitudinal dimension of the opening 82c.
- movable rails 80b on the right and left sides are pulled out forward with respect to the fixed rails 80a of the rail 80 fastened to the inner case 33 so that the movable rails 80b are fully extended.
- the upper container 69 is placed from above in a position where the upper container 69 is engaged with the metallic locking members 81 fastened to the movable rails 80b.
- Each of the reinforcing members 82 is fastened to a corresponding one of the flange parts 69a of the upper container 69 with the protrusion portion 82a of the reinforcing member 82 set in the holed portion 69b in the flange part 69a from underneath.
- Each of the holed portions 69b has the reinforcing member 82 fastened thereto.
- the locking member 81 As the locking member 81 is inserted into the opening 82c of the reinforcing member from underneath, first the projection portion 81c of the locking member 81 passes through the opening 82c, and then the riser portion 81b reaches the opening 82c. The upper container 69 is farther lowered until the lower end of the opening 82c reaches the upper end of the fastening portion 81a. Then, the upper container 69 is farther lowered while being shifted toward the back of the refrigerator until the fastening portion 81a fits in the opening 82c.
- the fastening portion 81a and the opening 82c are almost identical in depth so that they interlock without backlash therebetween.
- the upper container 69 cannot be removed easily only by lifting the rear part of the upper container 69 as illustrated in FIG. 7A because the projection portions 81c of the locking members 81 in the rear part are locked on the upper end of the openings 82c (the upper ends of the holed portions 69b) of the reinforcing members 82.
- the upper container 69 cannot be removed easily only by lifting the front part of the upper container 69 as illustrated in FIG. 7B because the projection portions 81c of the locking members 81 in the front part are locked on the upper end of the openings 82c (the upper ends of the holed portions 69b) of the reinforcing members 82.
- the upper container 69 can be removed from the movable rails 80b when the upper container 69 is fully open by lifting the front and rear parts of the upper container 69 at one time (in other words, lifting the upper container 69 while keeping it horizontal) and shifting the upper container 69 in the direction of the front part when the opening 82c is at a level corresponding to the riser portion 81b, and then farther lifting the upper container 69.
- the upper container 69 is then ready to be cleaned.
- the rail 80 and the locking member 81 made of metal provide rigidity.
- the upper container 69 made of PS plastic having high transparency provides increased visibility of items inside the upper container 69 when pulled out.
- the upper container 69 is fastened to the locking members 81 with the reinforcing members 82 made of plastic softer than the material for the upper container 69 and interposed between the upper container 69 and the locking members 81, and thereby can be moved back and forth together with the movable rails 80b.
- This configuration prevents the upper container 69 from cracking and breaking due to contact with a metallic member. In this configuration, breakage or the like of the upper container 69 due to strength of the upper container 69 made of plastic and fastening to the rails 80 made of metal is reliably prevented.
- the upper container 69 and the movable rails 80b are coupled with each other by fastening the locking members 81 to the holed portions 69b via the reinforcing members 82.
- the upper container 69 made of transparent plastic having higher hardness and locking members 81 made of metal are fastened to each other via the reinforcing members 82 made of plastic having lower hardness, so that the transparent upper container 69 can be prevented from breaking and cracking. As a result, reliability for back-and-forth motion can be secured.
- Strength of the holed portions 69b can be farther increased by providing each of the holed portions 69b between two adjacent ones of the flange reinforcement ribs 69c to reinforce the peripheral portions of the holed portions 69b.
- the present invention is applicable to a home-use refrigerator and a commercial-use refrigerator.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
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- General Engineering & Computer Science (AREA)
- Refrigerator Housings (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
- The present invention relates to refrigerators, and particularly to a refrigerator including a container attached onto rails so as to be movable back and forth.
-
FIG. 9 is a longitudinal sectional view of aconventional refrigerator 1. - A
container 7 included in therefrigerator 1 illustrated inFIG. 9 has an engagement portion (attachment portion) in direct engagement with a locking member (not illustrated) fixed to a metallic rail (not illustrated) provided inside of the refrigerator 1 (seePatent Literature 1 for an example). -
Patent Literature 2 discloses a refrigerator according to the preamble ofclaim 1 and describes a drawer assembly for a refrigerator which comprises compartment walls defining a cooling compartment. The drawer assembly includes a pan having a mounting portion, and a bracket coupled to one of the compartment walls. The bracket made of metal includes a locking mechanism movable between a first position and a second position. The pan is mounted to the bracket such that the locking mechanism engages the mounting portion of the pan. -
- [PTL 1] Japanese Unexamined Patent Application Publication No.
2005-195293 - [PTL 2]
US patent application 2007/0138804 - In the above-described conventional configuration, however, the engagement portion of the
container 7 is likely to have a crack due to contacting with the locking member when thecontainer 7 is moved back and forth, and may even drop off due to a load of items in thecontainer 7. - The present invention, conceived to address the problem, has an object of providing a refrigerator which includes a container having a cracking-proof attachment portion for attaching the container onto a rail.
- The problem can be solved with a refrigerator as defined in
claim 1. - The refrigerator according to the present invention has a reinforcing member interposed between a container and a rail, so that a refrigerator in which engagement portions having increased supporting force can be provided.
-
-
FIG. 1 is a longitudinal sectional view of a refrigerator according toEmbodiment 1 of the present invention. -
FIG. 2 is a frontal view of a main body of the refrigerator according toEmbodiment 1 of the present invention. -
FIG. 3 is a schematic view of an air flow path inEmbodiment 1 of the present invention. -
FIG. 4 is an oblique perspective view of the main body of the refrigerator according toEmbodiment 1 of the present invention. -
FIG. 5 is an oblique perspective view of a container and rails of the refrigerator according toEmbodiment 1 of the present invention. -
FIG. 6 is an exploded oblique perspective view of the container and rails shown inFIG. 5 . -
FIG. 7A schematically shows a principal mechanism inEmbodiment 1 of the present invention. -
FIG. 7B schematically shows the principal mechanism inEmbodiment 1 of the present invention. -
FIG. 8 is an oblique perspective view of the principal mechanism inEmbodiment 1 of the present invention. -
FIG. 9 is a longitudinal sectional view of a conventional refrigerator. - A refrigerator according to an aspect of the present invention includes: a heat-insulating main body including an inner case, an outer case, and a foam insulating material filling a space between the inner case and the outer case, the heat-insulating main body having a front opening; a container having a top opening; and a rail which allows the container to move back and forth with respect to the inner case. The rail includes a fixed rail and a movable rail which are slidably coupled. The fixed rail is fastened to the inner case of the heat-insulating main body. The movable rail includes a locking member for locking with the container. The container includes an engagement portion which engages with the locking member of the movable rail. The refrigerator further includes a reinforcing member provided between the locking member and the engagement portion for retaining engagement between the container and the movable rail. With this, the engagement portion has an increased strength, so that breakage of the engagement portion can be prevented.
- The locking member is made of metal. The engagement portion is made of plastic. The reinforcing member is made of plastic which is softer than the engagement portion. This prevents the engagement portion of the container from being cracked by the locking member made of metal.
- Furthermore, the engagement portion may be formed integrally with a lateral part of the container. The locking member may have a protrudent shape to protrude upward beyond the movable rail. The reinforcing member may be positioned where the locking member and the holed portion are expected to come into direct contact with each other when the locking member is directly inserted in the holed portion from underneath, and the reinforcing member thereby may be in direct contact with the locking member. Since the reinforcing member is in direct contact with the locking member, the engagement portion is prevented from being damaged such as being cracked.
- Furthermore, at least two portions of a front portion and a rear portion of the movable rail each may have the locking member. The locking member may include a riser portion extending upward and a projection portion projecting from the riser portion either forward or backward. The projection portion may be locked on an upper end of the holed portion in the engagement portion. With this, the engagement portion can be disengaged from the locking member by shifting the engagement portion back and forth with respect to the locking member.
- An embodiment of the present invention shall be described below using the drawings. It is to be noted that the present invention is not limited to the embodiment.
-
FIG. 1 is a longitudinal sectional view of a refrigerator according toEmbodiment 1 of the present invention.FIG. 2 is a frontal view of a main body of the refrigerator according toEmbodiment 1 of the present invention.FIG. 3 is a schematic view of an air flow path inEmbodiment 1 of the present invention.FIG. 4 is an oblique perspective view of the main body of the refrigerator according toEmbodiment 1 of the present invention.FIG. 5 is an oblique perspective view of a container and rails.FIG. 6 is an exploded oblique perspective view of the container and rails shown inFIG. 5 .FIG. 7A and FIG. 7B schematically show a principal mechanism inEmbodiment 1 of the present invention.FIG. 8 is an oblique perspective view of the principal mechanism inEmbodiment 1 of the present invention. - Referring to
FIG. 1 , a heat-insulatingmain body 31 of arefrigerator 30 includes anouter case 32 mainly made of a steel sheet and aninner case 33 molded of a plastic, such as acrylonitrile butadiene styrene (ABS). The space between theouter case 32 and theinner case 33 is filled with a foam insulating material, such as solid urethane foam, for thermal insulation from ambient temperature. The space inside theinner case 33 is segmented into storage compartments.FIG. 1 shows an exemplary configuration of the storage compartments: arefrigerator compartment 35 at the top; aconvertible compartment 36 below therefrigerator compartment 35; and afreezer compartment 37 at the bottom. - The
refrigerator compartment 35 has a front opening at which arefrigerator compartment door 38 is provided. Theconvertible compartment 36 has a front opening at which aconvertible compartment door 39 is provided. Thefreezer compartment 37 has a front opening at which afreezer compartment door 40 is provided. The doors are attached thereto so as to be opened and closed individually. - The
refrigerator compartment 35 is set at a non-freezing temperature even at the lowest, generally within a range from 1°C to 5°C. Theconvertible compartment 36 can be set at a temperature switchably between freezing temperatures and refrigeration temperatures within a range from -18°C to 4°C by a degree. Thefreezer compartment 37 is generally set at a freezing temperature ranging from -22°C to -15°C, and optionally at a lower temperature, for example, a temperature ranging from -30°C to -25°C for a better preservation state of items in a frozen condition. - The
convertible compartment 36 and thefreezer compartment 37 are vertically partitioned by afirst partition 41. Therefrigerator compartment 35 and theconvertible compartment 36 are vertically partitioned by asecond partition 42. - A cooling
chamber 43 where cool air is generated is provided behind thefreezer compartment 37. A cooler 44 is provided inside the coolingchamber 43. The coolingchamber 43 is separated from thefreezer compartment 37 by acover coil 45 which also provides thermal insulation therebetween. A fan is provided above the cooler 44. Thefan 46 forcibly causes a flow of cool air generated by the cooler 44. In addition, adefrost heater 47 is provided below the cooler 44. The defrost heater removes frost and ice from the cooler 44. - Specifically, the
defrost heater 47 is a glass tube heater. In particular, when a refrigerant used is hydrocarbon refrigerant gas, a double glass tube heater including double-layered glass tubes is used as thedefrost heater 47 for explosion prevention. Thecover coil 45 includes, for example, a plastic decorative plate (not illustrated in the drawings) and a heat insulating member (not illustrated in the drawings) which supports thefan 46 and forms a path for cool air. The heat insulating member is made of a heat insulating material such as polystyrene foam. - In addition, a
duct system 49 is provided behind theconvertible compartment 36. The duct system includes anair supply duct 48 through which cool air is supplied to therefrigerator compartment 35 and theconvertible compartment 36. Theair supply duct 48 includes a refrigerator compartmentair supply duct 48a and a convertible compartmentair supply duct 48b arranged side by side and extending vertically in theduct system 49. Cool air is supplied to therefrigerator compartment 35 through the refrigerator compartmentair supply duct 48a and to theconvertible compartment 36 through the convertible compartmentair supply duct 48b. Theduct system 49 includes a damper device in a buried condition. Thedamper device 50 is a device for adjusting the rate of air flow to therefrigerator compartment 35 and theconvertible compartment 36 by individually controlling the flow rate of cool air flowing through the refrigerator compartmentair supply duct 48a and the flow rate of cool air flowing through the convertible compartmentair supply duct 48b. - Flowing through the refrigerator compartment
air supply duct 48a and discharged into therefrigerator compartment 35, cool air enters arefrigerator compartment outlet 35b provided in a lower portion of a back face of therefrigerator compartment 35 to return to the cooler 44 through a refrigerator compartmentair return duct 51a. Flowing through the convertible compartmentair supply duct 48b and discharged into theconvertible compartment 36, cool air enters aconvertible compartment outlet 36c provided in a back face of theconvertible compartment 36 and located in a lower portion of theduct system 49 to return to the cooler 44 through a convertible compartmentair return duct 51b. - Inside the
convertible compartment 36, anupper container 69 and alower container 70 are arranged vertically in two tiers. Theupper container 69 and thelower container 70 each have a top opening, and are movable back and forth. Anupper inlet 36a from which cool air is discharged into theconvertible compartment 36 is provided above the top opening of theupper container 69. On the other hand, alower inlet 36b from which cool air is discharged into theconvertible compartment 36 is provided above the open top of thelower container 70 and below a bottom face of theupper container 69. - The following will describe a drawer structure of the
upper container 69 and thelower container 70 in theconvertible compartment 36. - As illustrated in
FIG. 1 , theupper container 69 and thelower container 70 are housed in theconvertible compartment 36 in two tiers. Therefrigerator compartment door 38,convertible compartment door 39, andfreezer compartment door 40 are not illustrated inFIG. 4 . Referring toFIG. 4 , theupper container 69 and thelower container 70 are both pulled open. - Each of the
upper container 69 and thelower container 70 is coupled with theconvertible compartment 36 by means ofrails 80 so as to be movable back and forth with respect to theinner case 33. - Each of the
rails 80 includes a fixedrail 80a, amovable rail 80b, and a plurality of bearings (not illustrated in the drawings) provided between the fixedrail 80a and themovable rail 80b. - First, the fixed
rails 80a, themovable rails 80b, and the bearings are assembled into therails 80 such that the fixedrail 80a and themovable rail 80b of each of therails 80 are slidable along each other. Then, theupper container 69 is coupled with theconvertible compartment 36 so as to be movable back and forth with respect to theinner case 33, by fastening the fixedrails 80a to lateral walls of theinner case 33 facing the storage compartment (convertible compartment 36), and fastening themovable rails 80b to theupper container 69. - In the same way as the
upper container 69, thelower container 70 is also coupled with theconvertible compartment 36 by means ofrails 80 so as to be movable back and forth with respect to theinner case 33. Accordingly, in the oneconvertible compartment 36, two sets of therails 80, that is, an upper set and a lower set are provided on the lateral walls facing theconvertible compartment 36, and theupper container 69 and thelower container 70 are movable back and forth independently from each other. - Since the bearings are already provided between the fixed
rail 80a andmovable rail 80b assembled together, a clearance between the fixedrail 80a and themovable rail 80b can be minimized. - Furthermore, the
rails 80 fastened to the lateral walls of theinner case 33 facing theconvertible compartment 36 are laterally symmetrical and provided on both sides of theinner case 33 so that therails 80 has higher slidability for a back-and-forth motion of theupper container 69. - After the
rails 80 are fastened to theinner case 33, theupper container 69 is engaged with lockingmembers 81 fastened to themovable rails 80b with hooks or screws or fixed by, for example, welding so that theupper container 69 can move together with themovable rail 80b. Furthermore, when theupper container 69 is fully open (pulled out all the way), theupper container 69 is detachable by lifting it from theinner case 33. - Specifically, the
upper container 69 hasflange parts 69a on its outer lateral walls. Theflange parts 69a protrude outward from the outer lateral walls and extend along the front-back direction of theupper container 69. Each of theflange parts 69a is provided withflange reinforcement ribs 69c for reinforcement of theflange parts 69a. Theflange reinforcement ribs 69c are approximately perpendicular to the longitudinal direction of theflange part 69a and connect theflange parts 69a and the outer lateral walls of theupper container 69. - Each of the
flange parts 69a further has holed portions in at least two portions including a front portion and a rear portion. The holedportions 69b each has an opening having an approximately rectangular shape and vertically penetrating through theflange part 69a. The holedportions 69b serve as the engagement portions for engagement between theupper container 69 and therails 80. More specifically, theupper container 69 and therails 80 are engaged with each other by setting thelocking members 81 provided on themovable rails 80b in the holedportions 69b of theflange parts 69a. - Furthermore, when the
upper container 69 is fastened to the lockingmembers 81, the lockingmembers 81 are inserted from underneath into the holedportions 69b having reinforcingmembers 82 set in the respective holedportions 69b. In other words, the reinforcingmembers 82 are interposed between the holedportions 69b and therespective locking members 81. - Specifically, the fixed
rails 80a and themovable rails 80b are metallic rails. Theupper container 69 is a transparent plastic case, which is, more specifically, made of general-purpose polystyrene (GPPS) widely used for transparent items. The lockingmembers 81 are also metallic parts. Peripheral portions of the respective holedportions 69b in theflange part 69a are made of the same material as theupper container 69, and therefore may be broken in a back-and-forth motion of theupper container 69 when theupper container 69 is fastened with the lockingmembers 81 directly inserted in the holedportions 69b. - In order to prevent such direct contact of the locking
members 81 with the peripheral portions of the holedportions 69b (the wall included in each of the holedportions 69b), the reinforcingmembers 82 made of plastic softer than the material of the holedportions 69b, such as polypropylene resin (PP resin), are interposed between the holedportions 69b and the lockingmembers 81. - Specifically, each of the reinforcing
members 82 is formed as an integrated combination of aprotrusion portion 82a and asupport portion 82b. Theprotrusion portion 82a can be set in the holedportion 69b. Thesupport portion 82b is supported on the top face of themovable rail 80b. More specifically, theprotrusion portion 82a protrudes upward beyond the top face of thesupport portion 82b. Furthermore, theprotrusion portion 82a has anopening 82c vertically penetrating through theprotrusion portion 82a. Thesupport portion 82b has an approximately rectangular shape which is larger than theprotrusion portion 82a in projected area (as viewed from above or below). - The
protrusion portion 82a is set in the holedportion 69b. At this time, the top end of theprotrusion portion 82a is above the top end of the holedportion 69b, and the peripheral portion of the holedportion 69b is covered with theprotrusion portion 82a. Then, the lockingmember 81 is inserted in theopening 82c provided in theprotrusion portion 82a. - As a result, the locking
member 81 inserted in theopening 82c is in direct contact not with the peripheral portion of the holedportion 69b but with the reinforcingmember 82. Thus, the lockingmember 81, which is made of metal, is in contact with the reinforcingmember 82, which is made of PP resin, so that the peripheral portion of the holedportion 69b of theupper container 69 can be prevented from being damaged in a back-and-forth motion of theupper container 69. - The locking
members 81 are provided in at least two portions of each of themovable rails 80b including a free end portion (front portion) and a fixed end portion (rear portion) of themovable rail 80b so as to correspond to the holedportions 69b. Each of the lockingmembers 81 is formed as an integrated combination of afastening portion 81a, ariser portion 81b, and aprojection portion 81c. Thefastening portion 81a rises from the top face of themovable rail 80b. Theriser portion 81b further rises from thefastening portion 81a and is shorter in depth (the depth refers to the longitudinal direction of themovable rail 80b, that is, the front-back direction) than thefastening portion 81a. Theprojection portion 81c is positioned above theriser portion 81b and projects from theriser portion 81b either forward or backward along the longitudinal direction of themovable rail 80b (forward in this example). Thefastening portion 81a is configured to have a depth dimension almost identical to a longitudinal dimension of theopening 82c. - The following will describe working and functions of the
refrigerator 30 in the above-described configuration. - First,
movable rails 80b on the right and left sides are pulled out forward with respect to the fixedrails 80a of therail 80 fastened to theinner case 33 so that themovable rails 80b are fully extended. Next, theupper container 69 is placed from above in a position where theupper container 69 is engaged with themetallic locking members 81 fastened to themovable rails 80b. - Each of the reinforcing
members 82 is fastened to a corresponding one of theflange parts 69a of theupper container 69 with theprotrusion portion 82a of the reinforcingmember 82 set in the holedportion 69b in theflange part 69a from underneath. Each of the holedportions 69b has the reinforcingmember 82 fastened thereto. - As the locking
member 81 is inserted into theopening 82c of the reinforcing member from underneath, first theprojection portion 81c of the lockingmember 81 passes through theopening 82c, and then theriser portion 81b reaches theopening 82c. Theupper container 69 is farther lowered until the lower end of theopening 82c reaches the upper end of thefastening portion 81a. Then, theupper container 69 is farther lowered while being shifted toward the back of the refrigerator until thefastening portion 81a fits in theopening 82c. Thefastening portion 81a and theopening 82c are almost identical in depth so that they interlock without backlash therebetween. - In this configuration, the
upper container 69 cannot be removed easily only by lifting the rear part of theupper container 69 as illustrated inFIG. 7A because theprojection portions 81c of the lockingmembers 81 in the rear part are locked on the upper end of theopenings 82c (the upper ends of the holedportions 69b) of the reinforcingmembers 82. Similarly, theupper container 69 cannot be removed easily only by lifting the front part of theupper container 69 as illustrated inFIG. 7B because theprojection portions 81c of the lockingmembers 81 in the front part are locked on the upper end of theopenings 82c (the upper ends of the holedportions 69b) of the reinforcingmembers 82. - It is thereby possible to prevent abrupt drop-off of the
upper container 69 from themovable rails 80b. - The
upper container 69 can be removed from themovable rails 80b when theupper container 69 is fully open by lifting the front and rear parts of theupper container 69 at one time (in other words, lifting theupper container 69 while keeping it horizontal) and shifting theupper container 69 in the direction of the front part when theopening 82c is at a level corresponding to theriser portion 81b, and then farther lifting theupper container 69. Theupper container 69 is then ready to be cleaned. - In addition, the
rail 80 and the lockingmember 81 made of metal provide rigidity. Furthermore, theupper container 69 made of PS plastic having high transparency provides increased visibility of items inside theupper container 69 when pulled out. - The
upper container 69 is fastened to the lockingmembers 81 with the reinforcingmembers 82 made of plastic softer than the material for theupper container 69 and interposed between theupper container 69 and the lockingmembers 81, and thereby can be moved back and forth together with themovable rails 80b. This configuration prevents theupper container 69 from cracking and breaking due to contact with a metallic member. In this configuration, breakage or the like of theupper container 69 due to strength of theupper container 69 made of plastic and fastening to therails 80 made of metal is reliably prevented. - The
upper container 69 and themovable rails 80b are coupled with each other by fastening the lockingmembers 81 to the holedportions 69b via the reinforcingmembers 82. Here, theupper container 69 made of transparent plastic having higher hardness and lockingmembers 81 made of metal are fastened to each other via the reinforcingmembers 82 made of plastic having lower hardness, so that the transparentupper container 69 can be prevented from breaking and cracking. As a result, reliability for back-and-forth motion can be secured. - Strength of the holed
portions 69b can be farther increased by providing each of the holedportions 69b between two adjacent ones of theflange reinforcement ribs 69c to reinforce the peripheral portions of the holedportions 69b. - The above description of the
upper container 69 is also applicable to thelower container 70. - Although the embodiment of the present invention is described with reference to the drawings, the present invention is not limited to the embodiment shown in the drawings. Various modifications and variations of the embodiments can be made as long as they are within the scope of the claims.
- The present invention is applicable to a home-use refrigerator and a commercial-use refrigerator.
-
- 1, 30 Refrigerator
- 7 Container
- 31 Heat-insulating main body
- 32 Outer case
- 33 Inner case
- 34 Foam heat-insulating material
- 35 Refrigerator compartment
- 35b Refrigerator compartment outlet
- 36 Convertible compartment
- 36a Upper outlet
- 36b Lower outlet
- 36c Convertible compartment outlet
- 37 Freezer compartment
- 38 Refrigerator compartment door
- 39 Convertible compartment door
- 40 Freezer compartment door
- 41 First partition
- 42 Second partition
- 43 Cooling chamber
- 44 Cooler
- 45 Cover coil
- 46 Fan
- 47 Defrost heater
- 48 Air supply duct
- 48a Refrigerator compartment air supply duct
- 48b Convertible compartment air supply duct
- 49 Duct system
- 50 Damper device
- 51a Refrigerator compartment air return duct
- 51b Convertible compartment air return duct
- 69 Upper container
- 69a Flange part
- 69b Holed portion
- 69c Flange reinforcement rib
- 70 Lower container
- 80 Rail
- 80a Fixed rail
- 80b Movable rail
- 81 Locking member
- 81a Fastening portion
- 81b Riser portion
- 81c Projection portion
- 82 Reinforcing member
- 82a Protrusion portion
- 82b Support portion
- 82c Opening
Claims (3)
- A refrigerator (30) comprising:a heat-insulating main body (31) including an inner case (33), an outer case (32), and a foam insulating material (34) filling a space between the inner case (33) and the outer case (32), the heat-insulating main body (34) having a front opening;a container (69) having a top opening; anda rail (80) which allows the container (69) to move back and forth with respect to the inner case (33),wherein the rail (80) includes a fixed rail (80a) and a movable rail (80b) which are slidably coupled,the fixed rail (80a) is fastened to the inner case (33) of the heat-insulating main body (34),the movable rail (80b) includes a locking member (81) for locking with the container (69),the container (69) includes an engagement portion (69b) which engages with the locking member (81) of the movable rail (80b),the engagement portion (69b) is a holed portion (69b) having an opening vertically penetrating through the engagement portion (69b), andthe refrigerator (30) further comprises a reinforcing member (82) provided between the locking member (81) and the engagement portion (69b) for retaining engagement between the container (69) and the movable rail (80b),characterized in thatthe locking member (81) is made of metal,the engagement portion (69b) is made of plastic, andthe reinforcing member (82) is made of plastic which is softer than the engagement portion (69b).
- The refrigerator (30) according to claim 1,
wherein the engagement portion (69b) is formed integrally with a lateral part of the container (69),
the locking member (81) has a protrudent shape to protrude upward beyond the movable rail (80b), and
the reinforcing member (82) is positioned where the locking member (81) and the holed portion (69b) are expected to come into direct contact with each other when the locking member (81) is directly inserted in the holed portion (69b) from underneath, and the reinforcing member (82) is thereby in direct contact with the locking member (81). - The refrigerator (30) according to claim 1 or 2,
wherein at least two portions of a front portion and a rear portion of the movable rail (80b) each has the locking member (81),
the locking member (81) includes a riser portion (81b) extending upward and a projection portion (81c) projecting from the riser portion (81b) either forward or backward, and
the projection portion (81c) is locked on an upper end of the holed portion (69b) in the engagement portion (69b).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010171640 | 2010-07-30 | ||
PCT/JP2011/004273 WO2012014476A1 (en) | 2010-07-30 | 2011-07-28 | Refrigerator |
Publications (3)
Publication Number | Publication Date |
---|---|
EP2600087A1 EP2600087A1 (en) | 2013-06-05 |
EP2600087A4 EP2600087A4 (en) | 2015-12-09 |
EP2600087B1 true EP2600087B1 (en) | 2019-05-15 |
Family
ID=45529707
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11812078.1A Not-in-force EP2600087B1 (en) | 2010-07-30 | 2011-07-28 | Refrigerator |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2600087B1 (en) |
JP (1) | JPWO2012014476A1 (en) |
CN (1) | CN103026157B (en) |
WO (1) | WO2012014476A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9435580B2 (en) * | 2014-07-17 | 2016-09-06 | Electrolux Home Products, Inc. | Drawer assembly |
CN105698459B (en) * | 2014-11-27 | 2019-11-15 | 博西华电器(江苏)有限公司 | Refrigerator |
CN105865140B (en) * | 2016-04-20 | 2020-04-17 | 合肥华凌股份有限公司 | Refrigeration device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4838627A (en) * | 1988-02-22 | 1989-06-13 | Russ Bassett Company | Drawer mounting means |
JP2005195293A (en) | 2004-01-09 | 2005-07-21 | Matsushita Electric Ind Co Ltd | Refrigerator |
JP2006046711A (en) * | 2004-08-02 | 2006-02-16 | Matsushita Electric Ind Co Ltd | Refrigerator |
DE102005021558A1 (en) * | 2005-05-10 | 2006-11-16 | BSH Bosch und Siemens Hausgeräte GmbH | Refrigerating appliance with extractable refrigerated goods carrier |
US7406833B2 (en) * | 2005-05-27 | 2008-08-05 | Whirlpool Corporation | Refrigerator storage system |
CN1940441A (en) * | 2005-09-27 | 2007-04-04 | 乐金电子(天津)电器有限公司 | Drawer installation structure of refrigerator |
US20070138804A1 (en) * | 2005-12-08 | 2007-06-21 | General Electric Company | Support assembly for a refrigerator storage pan |
CN2867234Y (en) * | 2006-01-20 | 2007-02-07 | 苏州三星电子有限公司 | Glass shelf used for refrigerator |
JP4283291B2 (en) * | 2006-08-18 | 2009-06-24 | 株式会社東芝 | refrigerator |
KR20080079106A (en) * | 2007-02-26 | 2008-08-29 | 삼성전자주식회사 | Refrigerator |
SI22602A (en) * | 2007-10-30 | 2009-04-30 | Gorenje Gospodinjski Aparati, D.D. | Assembly of drawer and wheel based sliding mechanism thereof |
JP4353315B1 (en) * | 2008-07-25 | 2009-10-28 | パナソニック株式会社 | refrigerator |
-
2011
- 2011-07-28 CN CN201180036025.1A patent/CN103026157B/en active Active
- 2011-07-28 EP EP11812078.1A patent/EP2600087B1/en not_active Not-in-force
- 2011-07-28 WO PCT/JP2011/004273 patent/WO2012014476A1/en active Application Filing
- 2011-07-28 JP JP2012526329A patent/JPWO2012014476A1/en not_active Withdrawn
Non-Patent Citations (1)
Title |
---|
None * |
Also Published As
Publication number | Publication date |
---|---|
JPWO2012014476A1 (en) | 2013-09-12 |
CN103026157B (en) | 2015-06-03 |
CN103026157A (en) | 2013-04-03 |
EP2600087A4 (en) | 2015-12-09 |
EP2600087A1 (en) | 2013-06-05 |
WO2012014476A1 (en) | 2012-02-02 |
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