JPH0719720A - Manufacture of panel with door for prefabricated refrigerator or the like - Google Patents

Abstract

PURPOSE:To reduce a manufacturing cost by using a wall panel in which a central part is cut out for a door, and mounting a door channel at its peripheral edge. CONSTITUTION:Heat insulators are injected and foamed in a space formed by two opposed front and rear surface plates 1a, 1b and a frame 19 arranged between sides of the plates 1a, 1b as a wall panel P. Then, a center of the panel P is cut out corresponding to a shape of the door to form an opening at the center of the panel P, a refrigerator port channel is engaged with the inner peripheral edge of the panel P for surrounding the opening to form the opening as the port. The cut-out panel is formed as a door panel 9 by engaging a door channel with the periphery, and the door panel is mounted at the panel P through a mounting fitment. Thus, a manufacturing cost can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a panel with a door in a prefabricated commercial refrigerator or the like.

[0002]

2. Description of the Related Art As shown in FIG. 7, upper and lower surface plates (31) (32) and left and right surface plates (33) (34) are formed so as to form a rectangular opening (30). A wall panel (42) is manufactured by arranging the front panel and the back panel in combination, fitting the frame (41) between the peripheral portions of the front and back surface plates, and injecting polyurethane into the internal space to foam the wall panel (42). A door panel (35) manufactured separately was attached to the opening (30) of 42) so that it could be opened and closed.

[0003]

However, in the case of the above-described manufacturing method, the front and back surfaces of the front and back surfaces also require a total of 8 sheets of different sizes (upper and lower (31) (32) and right and left (33) (34)). However, there has been a problem in that manufacturing of these surface plates by press working and their combination work require a great deal of labor. Further, in carrying out the manufacturing method,
Since a door panel supply line is required in parallel with the wall panel manufacturing line, there is also a problem that the number of man-hours associated therewith is significantly increased as compared with a normal wall panel without a door.

It is an object of the present invention to provide a method of manufacturing a panel with a door in a prefabricated refrigerator or the like which is low in manufacturing cost and excellent in work efficiency.

[0005]

A first method of manufacturing a panel with a door according to the present invention is directed to an inside of a space formed by face plates arranged facing each other and a frame body arranged between each side of these face plates. Insulation is injected into and foamed into a wall panel, and the central part of this wall panel is cut out in accordance with the shape of the door to form an opening in the central part of the wall panel. While covering the opening to the opening by fitting the opening channel to the inner peripheral edge, by fitting the door channel to the edge of the cut out panel to form the door panel, this door panel can be attached to the wall panel via the mounting bracket. is there.

Further, in the second manufacturing method of the present invention, slits are provided in advance in the central portion of the front and back surface plates at regular intervals corresponding to the shape of the door, and these slits are formed by an adhesive tape or an adhesive film. Then, the wall panels are made by injecting heat insulating material into the space formed by the face plates facing each other and the frame body arranged between the respective sides of the face plates. An opening is formed in the central part of the wall panel by cutting along the slit, and a storage port channel is fitted on the inner peripheral edge of the wall panel surrounding the opening to make the opening a storage port, while the cutout panel A door channel is fitted around the periphery of the door panel to form a door panel, and the door panel is attached to the wall panel via a mounting bracket.

[0007]

With any of the manufacturing methods of the present invention, the number of panels basically handled is one, and a separate line for supplying only the door panel is not required, so that the manufacturing line can be unified. Becomes Further, by simply attaching the channels to the peripheral edge of the opening portion of the wall panel and the peripheral edge of the cut-out panel, the storage port and the door panel of the wall panel can be obtained.

In the second manufacturing method of the present invention, the central portion of the wall panel can be easily cut out by previously providing the front and back surface plates with slits. In addition, by closing the slit of the surface plate with an adhesive tape or the like, the injected heat insulating material is prevented from flowing out from the slit when the heat insulating material is injected and foamed.

[0009]

EXAMPLE Next, an example in which the present invention is applied to a method for manufacturing a panel with a door in a prefabricated refrigerator will be described.

In the manufacturing method of this embodiment, as shown in FIGS. 1 to 4, two front and back face plates (1a) (1) made of color steel plates are prepared in advance.
In the central part of b), slits (2) are provided at regular intervals in a rectangular shape corresponding to the shape of the door, and these slits (2) are closed from the inside with an adhesive tape (3) (see Fig. 2). Next, polyurethane (4) is injected and foamed into the space formed by the face plates (1a) and (1b) facing each other and the frame (19) placed between each side of these face plates. The panel (P) is made, and the wall panel (P) is cut along the slit (2) and the cut panel (C) is removed to cut the wall panel (P).
A square opening (5) is formed in the central part of the wall of the wall panel (P) that surrounds this opening (5).
While covering (6) with the opening (5) as the storage opening (7) (see Fig. 3), the door channel is provided around the removed panel (C).
Fit the (8) to form the door panel (9) (see Fig. 4), and attach the door panel (9) to the wall panel (P) via the mounting bracket described below.
Install on.

When the polyurethane (4) is injected and foamed, the back surface of the front surface plate (1a) is used as a base for attaching the handle (11) of the door panel (9), its stopper (12) and the hinge (13). The iron plate (14) is embedded in each predetermined position in.

Storage channel (6) and door channel
(8) is made of vinyl chloride resin. As shown in FIG. 3, in the storage channel (6), the upper and lower sides of the opening (5) are
The lengths corresponding to the left and right edges are fitted and covered. Panel (C) with door channel (8) removed
It has a length corresponding to the upper, lower, left and right edges of the. For these channels, expanded vinyl chloride, expanded polystyrene, etc. may be used in addition to the vinyl chloride resin of the above example, and in any case, they can be easily obtained by extrusion molding.

On each iron plate (14) embedded in the panel, a grip (11), its stopper (12), and a hinge member are provided as mounting fittings.
A panel with a door is completed by screwing each (13) and finally attaching the door panel (9) to the wall panel (P). In this case, as a method of attaching the door panel (9), a so-called overlap method of attaching the door panel (9) shown in FIG. 5 so as to cover the storage opening (7) of the wall panel (P) or the door panel shown in FIG. A so-called in-fit system is used in which (9) is fitted into the opening (7) of the wall panel (P).

In the former of the above two methods, the door channel (8) is directly attached to the removed panel (C) in the former,
In the latter case, as shown in FIG. 1, the slit (2) has a wide width and is cut out along the outer edge (2a) of the panel.
By further cutting (C) along the inner end (2b) of the slit (2), the mounting width of the door channel (8) is secured. That is, the size of the door panel (9) with respect to the storage opening (7) is adjusted within the width of the slit (2).

In FIG. 5, (15) is a hinge for opening and closing the door panel (9), and (16) is attached to the back surface of the door channel (8) for airtightly closing the door panel (9). Indicates packing. Further, in FIG. 6, (17) is a hinge, (18)
Shows the packing fitted at the end of the outlet channel (6).

In the embodiment described above, the front and back sides 2
The slits (2) are provided at regular intervals in a square shape corresponding to the shape of the door in the central part of the surface plates (1a) (1b).
Although the method of cutting out the central portion of the wall panel (P) has been described along the line (2), the present invention is not limited to this. That is, for example, when the surface plate (1a) (1b) is a steel plate or an aluminum plate having a relatively thin thickness, the cutting process is easy, and therefore the pre-processing of previously providing the slit (2) is not performed. In addition, the central portion of the wall panel (P) may be directly cut and removed into a square shape corresponding to the shape of the door. In this case, the work of processing the slit (2) and attaching a tape or film to close the slit (2) is also omitted.

The door may have rounded corners as shown in FIG. Further, the shape of the door is not limited to the rectangular shape in the above example, but may be any shape, and may be a hexagonal shape as shown in FIG.

[0018]

In any of the door-equipped panel manufacturing methods according to the present invention, the number of panels to be basically handled is one, and a separate line for supplying only the door panel is not required. It becomes possible to make one. Therefore, the number of man-hours for manufacturing work is significantly reduced as compared with the conventional method.
Further, unlike the conventional case, it is not necessary to combine surface plates of different sizes, so that the overall work efficiency is improved.

Further, the door panel does not have to be manufactured separately as in the prior art, but a cutout part of the central portion of the wall panel may be used, and a door channel may be attached to the periphery thereof. Since it is only necessary to attach the storage port channel to the opening portion, the manufacturing cost can be extremely low in terms of material cost.

[Brief description of drawings]

FIG. 1 is a perspective view of a panel after injection of a heat insulating material in the method of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along the line AA of the panel showing a closed state of the slit of the surface plate with the adhesive tape.

FIG. 3 is a perspective view showing a state after cutting out the central portion of the panel in the method of the present invention.

FIG. 4 is a perspective view of a cut-out panel central portion.

FIG. 5 is a horizontal sectional view showing an example of attachment of a door panel.

FIG. 6 is a horizontal sectional view showing another embodiment of mounting the door panel.

FIG. 7 is a front view showing another form of a panel with a door according to the method of the present invention.

FIG. 8 is a front view showing another form of a panel with a door according to the method of the present invention.

FIG. 9 is a perspective view of a panel with a door manufactured by a conventional method.

[Explanation of symbols]

 (P) Wall panel (C) Cutout panel (1a) (1b) Face plate (2) Slit (3) Adhesive tape (4) Insulation material (5) Opening (6) Storage channel (7) Storage port ( 8) Door channel (9) Door panel (19) Frame

Claims (2)

[Claims] 1. Front and back surface plates (1a) (1
Insulation material (4) is injected into the space formed by b) and the frame (19) arranged between each side of these surface plates to form a wall panel (P). An opening (5) is formed in the central part of the wall panel (P) by cutting out the central part corresponding to the shape of the door, and the inner peripheral edge of the wall panel (P) surrounding the opening (5) is formed. Fit the opening channel (6) to cover the opening (5) as the opening (7), while covering the cutout panel (C) with the door channel (8) to form the door panel (9).
A method for manufacturing a panel with a door in a prefabricated refrigerator or the like, characterized in that the door panel (9) is attached to the wall panel (P) via a mounting bracket. 2. Slits (2) are provided in advance in the central portion of the front and back two surface plates (1a) (1b) at regular intervals corresponding to the shape of the door, and these slits (2) are attached to the adhesive tape (3). ) Or an adhesive film, and then face plates (1a) and (1b) placed facing each other and a frame placed between each side of these face plates.
Insulation material (4) is injected and foamed into the space formed by (19) to form a wall panel (P), and this wall panel (P) is slit.
An opening (5) is formed in the central part of the wall panel (P) by cutting along the (2), and a storage channel (6) is formed at the inner peripheral edge of the wall panel (P) surrounding the opening (5). ) To cover the opening (5) as the storage opening (7), while the cutout panel (C) is fitted with the door channel (8) to form the door panel (9). ) Through the mounting bracket to the wall panel (P)
A method of manufacturing a panel with a door in a prefabricated refrigerator, etc.