JP4425234B2 - Refrigerator - Google Patents

Description

  The present invention relates to a refrigerator in which an upper surface opening of a heat insulating box is closed with a sliding upper and lower doors so as to be freely opened and closed.

  Conventionally, a refrigerator called a frozen stocker that stores frozen desserts such as ice and ice cream has a storage chamber in the heat insulation box that opens to the top, and the top opening of the heat insulation box has a sliding-type top. The door and the lower door were closed so as to be freely opened and closed (see, for example, Patent Document 1). In addition, in the frozen stocker, frost grows on the inner wall surface of the storage room, and therefore it is necessary to remove the frost regularly. Usually, however, the frost is scraped off with an attached spatula.

  The upper door is conventionally slidably held by the upper rail of the opening, and the lower door is conventionally slidably held by a parallel lower rail formed inside and below the upper rail. A rectangular heat insulating plate with different dimensions was used for the lower door and the lower door.

Japanese Patent Laid-Open No. 11-241879

  However, conventionally, there has been a risk of losing the frost removal spatula because it has only been included as an accessory. Moreover, since it was necessary to manufacture the rectangular heat insulation board | plate material of a different dimension with an upper door and a lower door, there existed a problem that production cost rose.

  The present invention has been made in order to solve the conventional technical problem, and provides a refrigerator capable of avoiding loss of a defrosting spatula. Another object of the present invention is to reduce the production cost for the door.

The refrigerator of the invention of claim 1 is formed by closing the opening of the upper surface of the heat insulation box so that it can be opened and closed with a sliding upper and lower doors, and is formed at the opening of the heat insulation box. It has an upper rail to which the door is slidably attached and a lower rail which is formed inside and below the upper rail and to which the lower door is slidably attached. L1 is the dimension that can be attached to the upper rail, the short side dimension L2 is the dimension that can be attached to the lower rail, and the dimension L1 + dimension L2 is from one side in the longitudinal direction of the upper rail to the other side in the longitudinal direction of the lower rail. It is characterized by being configured to be larger than the dimension L3.

The refrigerator of the invention of claim 2 is characterized in that a handle portion is formed around the upper surfaces of both doors in the above.

In the first aspect of the present invention, in the cooling chamber in which the opening on the upper surface of the heat insulating box is closed openably by the sliding type upper and lower doors, the upper door is slid. An upper rail that can be freely attached and a lower rail that is formed inward and downward from the upper rail and to which the lower door is slidably attached. And the short side dimension L2 is a dimension that can be attached to the lower rail, and the dimension L1 + dimension L2 is a dimension L3 from one side in the longitudinal direction of the upper rail to the other side in the longitudinal direction of the lower rail. Since it is configured to be larger, the same door can be used as the upper and lower doors, and the opening can be opened and closed simply by changing their orientation by 90 degrees. Can be significantly reduced Uninaru.

In the invention of claim 2, in addition to the above, a handle portion is formed around the upper surface of both doors. It can be opened and closed without hindrance.

Next, embodiments of the present invention will be described in detail with reference to the drawings .

  1 and 2 are perspective views of a frozen stocker 1 as an embodiment of a refrigerator to which the present invention is applied, FIG. 3 is a longitudinal front view of the frozen stocker 1, FIG. 4 is a longitudinal side view of the frozen stocker 1, and FIG. 5 is a rear perspective view of the upper door 2, FIG. 6 is a vertical side view of the upper door 2, FIG. 7 is a vertical front view of the upper door 2, and FIG. 8 is an exploded rear perspective view of the upper door 2.

  The frozen stocker 1 of the embodiment is a refrigerator for storing, for example, ice and ice cream and storing them in a frozen state, and a storage chamber 6 is formed in a heat insulating box 4 that opens to the upper surface. An upper rail 7 is formed inside the upper surface opening of the heat insulating box 4, a lower rail 8 is formed inside the upper rail 7, and the upper surface opening has a stepped cross section as a whole. A rectangular lower door 3 is slidably attached to the lower rail 8, and a rectangular upper door 2 is slidably attached to the upper rail 7. The upper door 2 and the lower door 3 are of a sliding type and close the upper surface opening of the heat insulating box 4 so as to be freely opened and closed.

  In addition, 9 is a compressor and is installed in the machine room 11 below the storage room 6. The compressor 9 constitutes a well-known refrigerant circuit together with a condenser and a pressure reducing device (not shown), and an evaporator attached to the outside of the inner wall of the storage chamber 6. The inside of the storage chamber 6 is cooled to the freezing temperature by the cooling action by the evaporator. Therefore, frost grows on the inner wall surface of the storage chamber 6.

  On the other hand, the upper door 2 includes a resin upper plate 12, a resin or metal lower plate 13, and a heat insulating material 14 inserted between the both plates 12, 13. Has a similar structure. In this case, the upper plate 12 of the upper door 2 has recesses 16 and 16 formed on both sides in the long side direction, and the recesses 15 and 15 are also formed in the heat insulating material 14 corresponding thereto. . A holding portion 18 for detachably holding a spatula 17 for removing frost is formed in the lower plate 13 serving as a lower surface of the upper door 2, and a recessed portion 19 is also formed in the corresponding heat insulating material 14. Is formed.

  With the above configuration, the spatula 17 is always detachably fitted and held on the holding portion 18 of the upper door 2. In this state, the spatula 17 does not protrude downward from the lower plate 13 of the upper door 2. In this state, for example, when opening the upper door 2, the upper door 2 is moved on the upper rail 7 by placing a finger on the handle portion 16. When about half of the opening is opened, the lower door 3 is positioned below the upper door 2. At this time, since the spatula 17 does not protrude downward from the lower plate 13 of the upper door 2, there is no inconvenience that the spatula 17 hits the lower door 3 and the upper door 2 cannot slide.

  Next, when removing the frost grown on the inner wall surface of the storage chamber 6, the upper door 2 is removed and turned over, and the spatula 17 is removed from the holding portion 18. Then, the spatula 17 is used to scrape frost. Then, the spatula 17 that has been used is fitted and held in the holding portion 18 of the upper door 2 again. As described above, since the holding portion 18 that removably holds the defrosting spatula 17 is formed on the lower surface of the upper door 2, when the spatula 17 is not used, the holding portion 18 is held on the lower surface of the upper door 2. It becomes possible to place them and avoid the inconvenience of being lost.

  In particular, when the spatula 17 is held by the holding part 18, the spatula 17 is prevented from projecting below the lower face of the upper door 2, so that the holding part 18 is formed on the lower face of the upper door 2 as in the embodiment. In addition, when any one of the doors 2 and 3 is opened, the lower door 3 can move to the lower side of the upper door 2 without hitting the spatula, and there is no problem in opening and closing the door.

In the above embodiment, the holding portion 18 is formed on the upper door 2, but it may be formed on the lower door 3 .

Next, an embodiment of the present invention will be further described with reference to FIGS. In addition, in this figure, although structures other than the upper door 2 and the lower door 3 are not shown, it is the same as that of FIG. 1 thru | or FIG. In this case, it is assumed that a holding portion 18 of the spatula 17 is also formed on the lower surfaces of the upper door 2 and the lower door 3. In this case, the upper door 2 and the lower door 3 are the same door.

  That is, the upper door 2 and the lower door 3 use the same shaped doors with their directions changed by 90 degrees. In this case, the upper door 2 (the same applies to the lower door 3) has a rectangular shape, the long side dimension L1 is set to a dimension that can be attached to the upper rail 7, and the short side dimension L2 is set to the lower rail 8. It is set to a dimension that can be mounted. Thus, when used as the upper door 2, the long side is attached to the upper rail 7 as a direction orthogonal to the moving direction, and when used as the lower door 3, the direction is changed by 90 degrees, and the short side is changed. It can be attached to the lower rail 8 as a direction orthogonal to the moving direction.

  Further, when the dimension from one side of the upper rail 7 to the other side of the lower rail 8 is L3, the relation of L1 + L2> L3 is established. Thus, with the upper door 2 and the lower door 3 attached to the upper rail 7 and the lower rail 8 as described above, one side of the upper door 2 is applied to one side of the upper rail 7 and the other side of the lower door 3 is As shown in FIG. 10, one side of the lower door 3 overlaps with the lower side of the other side of the upper door 2 in a state where it is applied to the other side of the lower rail 8. Therefore, the upper surface opening of the heat insulating box 4 is closed so as to be freely opened and closed by the two doors 2 and 3 having the same shape but whose directions are changed by 90 degrees.

  By adopting such a configuration, the same door is used as the upper door 2 and the lower door 3, and the upper surface opening of the heat insulating box 4 can be freely opened and closed simply by changing their orientation by 90 degrees. Thus, the production cost for the door can be significantly reduced.

  Further, a handle portion 16 is formed on the upper surface of the upper door 2 (lower door 3) over the entire circumference. As a result, regardless of the orientation of the upper door 2 and the lower door 3, the handle 16 is located on both sides in the moving direction. It can be opened and closed without hindrance.

It is a perspective view of the frozen stocker as an example of a refrigerator which applied the present invention. It is a back perspective view of the frozen stocker of FIG. It is a vertical front view of the frozen stocker of FIG. It is a vertical side view of the frozen stocker of FIG. It is a back surface perspective view of the upper door of the frozen stocker of FIG. It is a vertical side view of the upper door of FIG. It is a vertical front view of the upper door of FIG. FIG. 6 is an exploded rear perspective view of the upper door of FIG. 5. It is a perspective view of the upper door and lower door of the Example of this invention . It is a perspective view which shows the state which attached the upper door and lower door of FIG. 9 to the upper rail and the lower rail.

1 Frozen stocker (refrigerator)
2 Upper door 3 Lower door 4 Insulation box 6 Storage room 7 Upper rail 8 Lower rail 16 Hand part 17 Spatula 18 Holding part

Claims (2)

In a refrigerator that has an opening on the upper surface of the heat insulation box that can be opened and closed with a sliding upper and lower doors,
An upper rail formed at the opening of the heat insulation box, and the upper door is slidably attached; and a lower rail formed inside and below the upper rail and the lower door is slidably attached ; The doors have a rectangular shape, the long side dimension L1 is a dimension that can be attached to the upper rail, the short side dimension L2 is a dimension that can be attached to the lower rail, and the dimension L1 + the dimension L2 is A cooler configured to be larger than a dimension L3 from one side in the longitudinal direction of the upper rail to the other side in the longitudinal direction of the lower rail. The refrigerator according to claim 1, wherein a handle portion is formed around the upper surfaces of the doors.

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