JPH053880U - Drawer door for freezer, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the drawer door of the freezer from rattling up and down during the opening and closing operation and to prevent the opening operation from being obstructed by freezing. A movable rail 13 and a rolling roller 6 arranged on the tip side of the movable rail 13 are provided on the side of the door body 9, and a fixed member for guiding rolling of the rolling roller 6 is provided on the side of the freezing chamber 1. In the case where the rail 4 and the fixed roller 8 arranged on the front side of the fixed rail 4 and supporting the sliding of the movable rail 13 are provided, the movable rail 13 has a U-shaped cross section capable of accommodating the fixed roller 8. By forming the cutout portion 14 on the lower surface side of the portion that is formed in the shape of the door and faces the fixed roller 8 when the door body 9 is closed, the dew condensation water can be dropped outside the rail.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a drawer door of a freezer or the like.

[0002]

[Prior Art]

 Most commonly known drawer door structures are of the type disclosed in Japanese Utility Model Laid-Open No. 59-94284, for example. In this product, a movable rail is extended to the drawer door side and a rolling roller is attached to its tip, a fixed rail for guiding the rolling roller is attached to the indoor side, and a movable rail is provided near the opening. The structure is such that a fixed roller that guides the sliding of is attached.

However, in this case, since the fixed roller supports only the lower surface side of the movable rail, rattling is likely to occur in the process of pulling out the door, which hinders smooth opening and closing operation. May come. As a countermeasure against this, as shown in FIG. 6, the movable rail 20 is formed into a U-shaped cross section, and the fixed roller 21 is housed therein, thereby restricting the rattling in the vertical direction during the opening / closing operation. It is possible that Although such a structure can realize smooth opening and closing operations, it creates the following new problems to be solved.

[0004]

[Problems to be solved by the device]

 If the freezer is left for a while with the door 22 pulled out, dew condensation occurs on the exposed portion outside the refrigerator. In this case, if the movable rail 20 is formed in a U-shape that opens outward as described above, dew condensation water will adhere to the inner rail surface. Therefore, when the door 22 is closed as it is, the fixed roller 21 guides the movement of the movable rail 20 while rotating, and as a result, the condensed water on the movable rail 20 side is collected on the peripheral surface, and the entire circumference is covered. Allow condensed water to adhere. Then, when the door 22 is closed for a while, most of the dew condensation water on the peripheral surface of the fixing roller 21 gradually moves to the lower side of the fixed roller 21, and as shown in the figure, it moves between the lower surface side of the movable rail 20. There is a case where the operation of opening the door 22 is hindered by freezing (even a small amount of freezing with the upper surface side). Even if it freezes in this way, it will sublime if it is exposed to the cold air in the freezer for a long time. However, if you try to open the door 22 again in a relatively short time before sublimation, This is a problem. Heretofore, when such freezing occurs, it has been practiced to give a shock to the door 22 and forcibly pull it out, or to stop the operation of the freezer and thaw it.

The present invention has been devised and devised in view of such circumstances, and an object thereof is to provide a drawer door that can eliminate the freezing of the rollers and smoothly perform the opening operation.

[0006]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above-mentioned object is that the door body that closes the opening side of the freezing compartment has a pair of left and right movable rails extending into the freezing compartment and the rolling rails arranged at the tip side of the movable rail. While rollers are provided, fixed rails for guiding the rolling of both rolling rollers are provided on both left and right side walls of the freezing chamber, and they are arranged in front of the fixed rails to support sliding of the movable rails. In the drawer door provided with a fixed roller for storing the fixed roller, the movable rail is formed in a U-shaped cross section capable of accommodating the fixed roller, and the fixed roller is fixed when the door body closes the opening side of the freezer compartment. It is characterized in that a notch portion is provided on the lower surface side of the portion facing to.

[0007]

[Action]

 If the door is closed with condensed water on the movable rail, condensed water will adhere to the peripheral surface of the fixed roller. However, when the door is closed, the fixed roller faces the notch formed on the lower surface side of the movable rail, so that dew condensation water is dripped from here, so that freezing does not occur between the fixed roller and the movable rail. Absent.

[0008] It should be noted that the ice pieces generated by the dropped condensed water sublime.

[0009]

[Effect of the device]

 The effects of the present invention are as follows. The fixed roller is housed inside a movable roller with a U-shaped cross section, eliminating rattling when opening and closing the door and enabling smooth opening and closing operations. Moreover, since the icing between the fixed roller and the movable rail is prevented in advance, the door can be opened smoothly. Furthermore, considering that such a problem of freezing occurs when the door is opened in a relatively short time as described above, the present invention can be said to be particularly useful for a commercial freezer, which is frequently opened and closed.

[0010]

【Example】

 Hereinafter, embodiments embodying the present invention will be described in detail with reference to the drawings. FIG. 2 shows the entire freezer R in this embodiment, and shows a type in which four freezer compartments 1 are provided. Each freezer compartment 1 is provided with a drawer door 2 which can be freely taken in and out.

Explaining the mechanism of the drawer, a fixed frame 3 as shown in FIGS. 4 and 5 is attached to the inner wall surface of each freezer compartment 1. The fixed frame 3 includes fixed rails 4 attached to both left and right side walls of the freezer compartment 1, and connecting pieces 5 attached to the inner wall surfaces of the freezer compartment 1 by connecting the rear end portions of both fixed rails 4. It is composed by the framework. The fixed rail 4 is formed in a U-shaped cross-section that opens toward the inside of the room, and plays a role of guiding the rolling of the rolling roller 6 on the side of the drawer door 2 described later. A fixing mounting plate 7 is connected to the front side (opening side of the freezer compartment 1) of the fixed rail 4, and two fixing rollers 8 shown in the drawing are horizontally arranged in parallel on the inner surface of the fixing plate 7. Each is mounted so that it can rotate freely.

The fixed frame 3 is mounted such that the fixed rail 4 is slightly inclined downwards toward the rear side, and the storage operation of the drawer door 2 is performed by its own weight, so that the fixed frame 3 is automatically closed. It is designed to be.

On the other hand, a door body 9 for closing the opening of the freezer compartment 1 is provided on the side of the drawer door 2, and a door frame 10 framed in a rectangular shape is horizontally attached on the inner surface side thereof. .. The door frame 10 is fixed to the door body 9 by a pair of mounting plates 11 (only one side is shown in FIGS. 4 and 5). Further, the door frame 10 is provided with a flange-shaped mounting edge 12 extending inwardly over the entire inner periphery of the door frame 10 so that a food container or the like (not shown) can be detachably stored.

Further, a pair of upper and lower rolling rollers 6 are rotatably attached to the inner portions of the surfaces of the door frame 10 facing both side wall surfaces of the freezing compartment 1, and both rollers 6 are fixed. It is arranged so as to sandwich the upper wall of the roll 4, and serves to guide the relative movement with the fixed rail 4. On the surface of the door frame 10 on which the rolling rollers 6 are mounted, movable rails 13 whose sliding is supported by fixed rollers 8 are mounted respectively. The movable rail 13 has a U-shaped cross section so that the fixed roller 8 can be housed inside and guided to the roller 8 from both upper and lower sides. Then, as shown in FIG. 3, in order to avoid interference with the fixed rail 4, it is arranged slightly above the fixed rail 4. Further, a cutout portion 14 is formed on the lower surface side of a portion of the movable rail 13 that faces both the fixed rollers 8 when the drawer door 2 is closed. In this embodiment, the range where the cutout portion 14 is provided is a little further outside the outer ends of both the fixed rollers 8, but at least none of the fixed rollers 8 contacts. It may be formed over the range.

The roller surface of each of the fixed and rolling rollers is made of a synthetic resin material.

Next, the operation and effect of this embodiment configured as described above will be described. When the drawer door 2 is opened and closed, the rolling roller 6 rolls while sandwiching the upper wall of the fixed rail 4, and the movable rail 13 moves while slidingly contacting the fixed roller 8 to correspond to each of these rollers. Opening and closing operations are guided by rails. In this case, since the rolling roller 6 sandwiches the fixed rail 4 from above and below and the fixed roller 8 guides the upper and lower sides of the movable rail 13, there is no rattling up and down when the drawer door 2 is opened and closed. Smooth closing operation.

Further, when the drawer door 2 is closed, the fixed roller 8 and the cutout portion 14 on the movable rail 13 side face each other. Therefore, even if dew condensation occurs in the movable rail 13 due to the opening of the drawer door 2, dew condensation occurs. Water falls out of the rail through the notch 14. Therefore, a situation in which freezing occurs in this portion is avoided in advance. It should be noted that, although icing also occurs between the fixed roller 8 and the upper surface of the movable rail 13, it is slight, so that it does not hinder the opening operation of the drawer door 2. Further, although there is a case where convex ice hangs down to the lower part of the fixed roller 8, this does not hinder the opening of the drawer door 2 and easily hits the lower surface of the movable rail 13 after the drawer door 2 is started and is crushed. Furthermore, the ice pieces generated by the condensed water that has fallen through the cutout portion 14 sublime over time and disappear naturally. It should be noted that the present invention is not limited to the freezer, but can be widely applied to ice-cooled rooms and the like.

[Brief description of drawings]

FIG. 1 is a side view of a drawer door in a closed state.

FIG. 2 is a perspective view of a freezer.

FIG. 3 is a sectional view showing a fixed roller portion.

FIG. 4 is a perspective view showing an open state of a drawer door.

FIG. 5 is a perspective view showing a closed state of the drawer door.

FIG. 6 is a side view of a conventional drawer door.

[Explanation of symbols]

 1 ... Freezer compartment 4 ... Fixed rail 6 ... Rolling roller 8 ... Fixed roller 13 ... Movable rail 14 ... Notch

Claims (1)

[Claims for utility model registration] [Claim 1] A pair of left and right movable rails extending into the freezing chamber and a rolling roller arranged at the tip side of the movable rail are provided on the door body for closing the opening side of the freezing chamber. And are provided,
A drawer door provided on both left and right walls of the freezing chamber with fixed rails for guiding rolling of the rolling rollers and fixed rollers arranged on the front side of the fixed rails and supporting sliding of the movable rails. In the above, the movable rail is formed in a U-shaped cross section capable of accommodating the fixed roller, and a cutout portion is formed on a lower surface side of a portion facing the fixed roller when the door body closes the opening side of the freezer compartment. A drawer door for a freezer or the like characterized by being provided with.