JP3911384B2 - Door assembly such as ice storage - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door assembly provided in an ice storage or a refrigerator of an automatic ice maker, and in particular, smoothly opens and closes an up / down sliding door, and the door surface based on the temperature difference between the outside air and the inside and the dew phenomenon. The present invention relates to a door assembly such as an ice storage configured to prevent harmful effects caused by exposure to water.
[0002]
[Prior art]
Generally, in an ice storage, a refrigerator, or the like of an automatic ice making machine, doors that can be opened and closed are provided so that ice cubes and other articles stored in the storage can be taken out as needed. And this type of door is a door assembly composed of a number of members that are assembled by adopting a heat insulating structure including not only the structure of the door body but also its surrounding members in order to effectively block the outside air. It is configured as a solid.
[0003]
FIG. 5 shows a configuration of a door body of an ice storage of a typical conventional automatic ice making machine. The door body 10 shown in FIG. 5 uses a resin material having high rigidity, that is, high impact strength, for example, polycarbonate resin (PC) or polyethylene phthalate resin (PET), and a thick object having a plate thickness of about 25 mm is predetermined. It is constructed by cutting to the dimensions of
[0004]
The door main body 10 shown in FIG. 5 is configured as an up-and-down slide type door, and both side edges of the door main body 10 are closely fitted in guide grooves provided in a door assembly (not shown) to It is assembled so that it can be opened and closed by sliding in the direction. In such an opening / closing operation of the door body 10, when the door body 10 is moved upward (open position) and then moved downward (closed position), the position of the door body 10 is fixed. The recesses 12a and 12b for engaging with the locking member are respectively machined.
[0005]
[Problems to be solved by the invention]
Although the conventional door body 10 thus configured is formed of a resin material having a low thermal conductivity, dew generation occurs on the surface due to the difference between the outside air and the internal temperature, and this dew is generated. It is pointed out that it is difficult to drop on the floor or scatter when the door is opened and closed. Although it is possible to prevent dew condensation by increasing the thickness dimension of the door body 10 to improve the heat insulation, in this case, there is a disadvantage that the weight of the door body 10 increases.
[0006]
In addition, the door body 10 has a drawback that the end surface obtained by cutting the resin material forms a rough surface by a sawtooth, and the frictional resistance generated upon contact with the guide groove is increased. For this reason, it is necessary to finish the cut end face of the resin material smoothly. However, since the work requires remarkably labor and time, it is extremely inconvenient for mass production.
[0007]
In conventional under-counter storage refrigerators and the like, a side-sliding door is generally employed. In this case, the door body has a configuration in which a glass plate is used and a frame member made of a resin material is mounted on the four sides of the door body. However, this kind of door body can hardly be expected to reduce the frictional resistance due to the resin material, and the dew phenomenon due to the glass plate increases, which not only deteriorates the appearance but also reduces the appearance of water droplets. There are disadvantages such as an increase in harmful effects caused by scattering.
[0008]
In addition, as a structure of a door body of a conventional refrigerator or the like, a hollow door body made of a metal plate or a resin plate joined in front and rear is formed, and a foamed heat insulating material is filled in the hollow portion so that the outside air and the inside of the warehouse are Various proposals have been made to effectively prevent the phenomenon of dew condensation on the door surface due to a temperature difference. However, in the structure of these door bodies, it is not considered at all to adopt as the above-described vertical sliding door or lateral sliding door, and therefore, no consideration is given to reducing frictional resistance during sliding operation. It has not been.
[0009]
OBJECT OF THE INVENTION
The present invention has been proposed in view of the above-mentioned drawbacks inherent in the door assembly according to the prior art, and has been proposed to suitably solve this problem. Excellent anti-dew effect and anti-noise effect inside the cabinet, and prevents water droplets from entering the cabinet, and effectively prevents the generation of rust and germs and is hygienic and mass production. An object of the present invention is to provide a door assembly such as an ice storage having a suitable configuration.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problems and achieve the intended purpose, a door assembly such as a storage according to the present invention,
A door body that slides openably and closably on the front surface of an ice storage, a back panel that includes a guide groove that guides and holds the door body slidably, and detachable so as to hold the door body against the front surface of the back panel In door assemblies such as ice storage composed of front panel assemblies that can be installed,
The door body includes an exterior panel made of a metal plate formed in a box shape with an open back side , a heat insulating member attached to the back surface of the exterior panel, and a resin plate that hermetically holds the heat insulating member inside the exterior panel. It consists of a reverse cover consisting of
The reverse cover is formed in a box shape having an opening on the front side and is fixed to the exterior panel so as to cover the upper, lower, left and right edges of the exterior panel from the back side, and when the door body slides, the reverse cover Both side edges of the cover slide in the guide groove ,
Wherein the front end outer peripheral portion of the reverse cover, and wherein the forming the rim portion protruding from the surface of the face panel slightly forward.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of a door assembly such as an ice storage according to the present invention will be described in detail below with reference to the accompanying drawings.
[0012]
FIG. 1 shows an embodiment of a door assembly when the present invention is applied to an ice storage door of an automatic ice maker or the like. That is, FIG. 1 is an exploded perspective view of each component member showing a configuration of a door assembly as an ice storage door. The door assembly 20 of the present embodiment has a basic configuration including a front panel assembly 22 composed of a plurality of members, a door body 40 and a back panel 24.
[0013]
The front panel assembly 22 includes an upper front panel 21a, a lower front panel 21b, and left and right front panels 21c and 21d formed symmetrically. The door body 40 can be detachably held between the front panel assembly 22 and the back panel 24. Consisting of
[0014]
The back panel 24 is provided with an opening 26 in the lower part, and inside the both sides are provided with guide grooves 27 that are formed symmetrically to fit the door body 40 and guide it slidably up and down. Yes. In addition, a case portion 28 for holding a required space is provided on the inner surface of the upper panel of the back panel 24, and the door body 40 is suspended at one end from the top of the back panel 24 to balance the weight. A bracket 31 for fixing a pulley 30 around which a pair of wires 29 that can be opened and closed in the vertical direction is wound is attached. Reference numeral 32 denotes a weight that is coupled to the other end of the pair of wires 29 and is accommodated in the case portion 28 so as to be vertically movable.
[0015]
The guide groove 27 of the back panel 24 is provided with a pair of left and right engaging members 34a and 34b that elastically protrude inward of the guide groove 27 at an upper position and a lower position thereof. Further, at both side edge portions of the door main body 40 fitted into the guide groove 27, concave portions 42a and 42b are respectively provided at an upper position and a lower position thereof, and when the door main body 40 is opened, the locking member 34a and the concave portion are provided. 42a can be engaged to hold the open state, and when the door body 40 is closed, the locking member 34b and the recess 42b can be engaged to hold the closed state. . Reference numeral 35 denotes a stopper of the door main body 40 provided above the back panel 24, and reference numeral 41 denotes an opening / closing operation handle provided at the lower edge of the door main body 40.
[0016]
2 and 3 show the configuration of the door body 40 in the door assembly 20 according to the present invention. FIG. 2 is an exploded perspective view showing the door body 40. In FIG. 2, the door body 40 includes an exterior panel 44 that forms the surface of the door body 40 that is formed in a box shape whose back side is opened by a metal plate such as stainless steel, and a resin such as polyethylene that is attached to the back surface of the exterior panel 44. A box having a front surface opened by a resin plate such as an ABS resin or a PET resin that forms a back surface of the door body 40 so that the heat insulating member 46 can be hermetically held inside the exterior panel 44. And a reverse cover 48 formed into a shape.
[0017]
When the heat insulating member 46 is mounted inside the exterior panel 44, wires for suspending the door main body 40 under balance with the weights 32 are fixed to the left and right ends forming the upper edge of the door main body 40. The bracket 45 is inserted. In this case, in order to fix the bracket 45 to a part of the exterior panel 44, rivet insertion holes 44a and 45a are formed in the exterior panel 44 and the corresponding bracket 45, respectively, and are inserted and fixed appropriately by the rivets 47. . On the other hand, at the upper edge portion of the reverse cover 48, a raised portion 49 is provided as shown in the portion corresponding to the position where the bracket 45 is provided so as to surround the protruding portion of the rivet 47. (See FIG. 3 (c)). Then, wire insertion holes 45b and 48b for inserting and fixing the wire 29 are respectively formed in the bracket 45 corresponding to the raised portion 49 and the reverse cover 48 corresponding thereto.
[0018]
Further, in order to couple and fix the reverse cover 48 to the exterior panel 44, a plurality of rivet insertion holes 43a are formed at appropriate positions of the exterior panel 44, and a plurality of rivet insertions are also inserted into corresponding positions of the reverse cover 48. Each of the holes 48a is formed so as to be inserted and fixed by a rivet 47 as appropriate. Both the upper and lower edges and the left and right edges of the reverse cover 48 are provided so as to cover the corresponding upper and lower edges and the left and right edges of the exterior panel 44. A rim portion 50 that slightly protrudes forward from the surface is bent at a substantially right angle so as to extend outward. The rim portion 50 functions to prevent the metal exterior panel 44 from contacting the inner surface of the guide groove 27 when the door body 40 slides the door assembly 20 up and down.
[0019]
The left and right edges of the reverse cover 48 are provided with flat recesses 42a, 42b, 52 at the upper and lower portions and an intermediate portion thereof, and a plurality of (four in the embodiment) partially raised in the longitudinal direction. A protruding portion 54 is formed (see FIGS. 3A and 3B). That is, in this case, when the protruding part 54 raised partially is assembled with the door main body 40 as the door assembly 20 shown in FIG. It becomes a moving surface.
[0020]
Next, with reference to FIGS. 4A and 4B, the opening / closing operation of the door body 40 when the door body 40 having the above-described structure is assembled as the door assembly 20 will be described.
[0021]
As described above, the recesses 42 a, 42 b, 52 and the protrusions 54 that are partially raised are provided on both side edges of the door body 40, thereby sliding along the guide groove 27 of the back panel 24. The frictional resistance that is generated during the process can be significantly reduced. When the locking members 34a and 34b come into contact with the locking members 34a and 34b, which are spring pieces provided so as to elastically protrude at the upper and lower positions of the guide groove 27, the locking members 34a and 34b slide while exerting a braking action. (See FIG. 4 (a)), and securely engages and engages with the recesses 42a and 42b of the door main body 40 (see FIG. 4 (b)), so that the open / closed state of the door main body 40 is properly maintained. can do. In addition, as shown in FIG.4 (b), the sealing property by the door main body 40 is improved by arrange | positioning the packing 55 suitably in the part which the lower edge part of the said door main body 40 of the back panel 24 contact | abuts. It is configured to prevent cold air leakage to the outside.
[0022]
The preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and can be applied to a wide range of sliding doors for various types of automatic ice makers and various refrigerators. Rather, many design changes can be made without departing from the spirit of the present invention.
[0023]
【The invention's effect】
As described above, the door assembly of the ice storage or the like according to the present invention can significantly reduce the total weight, and the portion facing the interior is constituted by the integrally formed body of the reverse cover. In addition, there are no joints due to a plurality of parts, and it is excellent not only in heat insulation effect, dew prevention effect, and noise prevention effect inside the cabinet, but also in hygiene. In particular, by providing a rim portion on the outer peripheral edge of the reverse cover, it is possible to prevent water droplets from entering from the surface side of the door body into the cabinet, and the exterior panel made of a metal plate directly contacts the guide groove. It is possible to prevent the occurrence of rust and germs.
[0024]
Moreover, the recessed part engaged with the latching member provided in the guide groove up and down and the protrusion part partially raised in the longitudinal direction of the said both side edge part were formed in the both-sides edge part of the reverse cover by integral molding. With this configuration, when sliding the door body in the vertical direction, the frictional resistance on the sliding surface can be remarkably reduced, and the operation for maintaining the respective states when the door body 40 is opened and closed smoothly and Can be reliably achieved. Furthermore, the door body of the door assembly according to the present invention has a simple configuration with a small number of parts, and a complicated shape portion can be easily manufactured by integral molding with a resin material, and is suitable for mass production. Has excellent advantages.
[Brief description of the drawings]
FIG. 1 is a partially cutaway perspective view showing an assembled state of a door assembly showing an embodiment of a door assembly such as an ice storage according to the present invention.
2 is an exploded perspective view of a door body of the door assembly in FIG. 1. FIG.
FIG. 3A is a cross-sectional view of a main part crossed by a protrusion of a reverse cover in the door assembly, and FIG. 3B is a cross-sectional view of a main part crossed by a recess of the reverse cover in the door assembly. c) is a front view of an essential part of the door assembly.
4 shows locking means for locking the door assembly in the assembled state shown in FIG. 1 in the open / closed position, and FIG. 4 (a) is an explanatory view showing the braking action of the locking means. (B) is an explanatory view showing a locked state by the locking means.
FIG. 5 is a front view showing a typical door body of a door assembly such as a conventional ice storage.
[Explanation of symbols]
22 Front panel assembly, 24 Back panel, 27 Guide groove 29 Wire, 45 Bracket, 32 Weight, 34a, 34b Locking member 40 Door body, 42a, 42b Recess, 44 Exterior panel, 46 Heat insulation member 48 Reverse cover, 50 Rim part , 52 Recess, 54 Projection

Claims (4)

A door body (40) that slides openably and closably on the front surface of an ice storage or the like, a back panel (24) including guide grooves (27, 27) that slidably guide and hold the door body (40), and the back In a door assembly such as an ice storage constructed from a front panel assembly (22) that is detachably attached to the front surface of the panel (24) so as to hold the door body (40).
The door body (40) is an exterior panel (44) made of a metal plate formed in a box shape whose back side is open, a heat insulating member (46) attached to the back surface of the exterior panel (44), and the exterior panel A reverse cover (48) made of a resin plate that hermetically holds the heat insulating member (46) inside (44),
The reverse cover (48), together with the surface side is fixed to the outer panel (44) so as to cover the upper, lower, left and right edge portions of said molded in a box shape opening face panel (44) from the rear side, the door body When the (40) slides , both side edges of the reverse cover (48) slide in the guide grooves (27, 27) ,
Wherein the front end outer peripheral portion of the reverse cover (48), a rim portion protruding from the surface of the face panel (44) slightly forward (50) the ice bin or the like of the door sets characterized by forming the <br/> that the Solid. Recesses (42a, 42b) that engage with locking members (34a, 34b) provided in the guide grooves (27, 27) above and below the side edges of the reverse cover (48), and The door assembly for an ice storage or the like according to claim 1, wherein the protrusion (54) partially raised in the longitudinal direction and formed as a sliding surface with respect to the guide groove (27, 27) is formed by integral molding. On the left and right ends forming the upper edge of the door body (40), between the exterior panel (44) and the heat insulating member (46), the door body (40) under balance with the weight (32) The door assembly for an ice storage or the like according to claim 1 or 2, further comprising a bracket ( 45 ) for connecting a wire (29) for suspending the ice. The locking members (34a, 34b) provided in the guide groove (27) are constituted by spring pieces that elastically protrude at the upper and lower positions of the guide groove (27), and the door main body at the opening / closing position of the door main body (40). The sliding structure of the door main body (40) is engaged with the recesses (42a, 42b) while maintaining the open / closed state of the door main body (40). A door assembly such as an ice storage according to any one of ?

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