JP3186884B2 - Closed storage door and method of manufacturing closed storage door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a door of a closed storage used for a refrigerator or the like.

[0002]

2. Description of the Related Art FIG.
FIG. 12 is an external perspective view showing a conventional door manufacturing method disclosed in Japanese Patent Application Publication No. 5-205, FIG. 12 is an enlarged sectional view taken along line ZZ of FIG. 11, FIG. 13 is a plan view of a door gasket, and FIG. FIG. 15 is a flowchart of the door assembling process. In the drawing, 1 is a door body, 2 is a panel, 3 is a door gasket in which a door sash portion 4 and a packing portion 5 are integrated, and an end face flange 2a of the panel 2 is inserted into a thin groove 4a provided in the door sash portion 4. I have. The door sash portion 4 of the door gasket 3 has a flange 4b on which the inner plate 6 is placed.
And the inner plate 6 is fixed with screws 8.

[0003] Door gasket 3 used for door body 1
The four sides have the same cross-sectional shape, and the four sides are continuous to form a notch 9 for bending.

[0004]

Since the conventional method of manufacturing a door is constructed as described above, the inner plate must be attached after the heat insulating material is injected and foamed (FIG. 15). The operation of raising the packing once is necessary, and performing this operation on the four sides is very time-consuming.

Further, the door sash portion of the door gasket is only in contact with the heat insulating material in a plane, and there is a defect that the door sash portion is peeled off due to the variation of the foaming of the heat insulating material.

Although the end face of the panel is inserted into the narrow groove of the door sash, the groove is very narrow in order to prevent leakage of the foam injected with the heat insulating material.

Since the door gasket is in close contact with the heat insulating material, the entire door body must be replaced even in the case of a partial defect such as a broken packing part.

Since the door gasket is continuous and has the same cross-sectional shape, there are many breakage defects in the cut portion, and the position of the packing portion is fixed so that the position of the door opening / closing shaft and the other cannot be changed, so that the refrigerator cannot be changed. And the internal volume efficiency was poor.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and eliminates the work of mounting the inner plate after foaming, assures the close contact between the door gasket and the heat insulating material, and replaces the service of the packing part. It is an object of the present invention to provide a method of manufacturing a door using a door gasket which is easy and does not deteriorate the internal volume efficiency.

[0010]

A closed storage door according to the present invention comprises a door body, a door panel forming a front surface of the door body, and a door gasket formed integrally with a door sash and a packing. In the closed storage door having an inner plate fixed to the door sash portion and a heat insulating material, the door sash portion has a concave groove opening toward the center of the door body, and the groove has an outer periphery of the inner plate. After inserting the flange, heat-insulating material is injected and foamed inside the door body to fix the inner plate, and the panel insertion groove of the door sash part on the panel side so that variations in position when the inner plate and the door gasket fall down can be absorbed. And a plurality of soft fins are provided so as to be in contact with each other when the panel is inserted into the inner wall of the panel insertion groove.

[0011]

A door body, a door panel forming the front surface of the door body, a door gasket integrally formed of a door sash and a packing, an inner plate fixed to the door sash, and a heat insulating material; In the closed storage door having a door sash, the door sash portion has a concave groove opening toward the center of the door main body, and after inserting the outer peripheral flange of the inner plate into this groove, the heat insulating material is injected and foamed inside the door main body. To fix the inner plate and project the triangular rib on the outer wall of the door sash of the door gasket that is attached inside the cap of the door body, and tilt the outer wall inward so as to extend the inclined surface of the triangular rib Then, a triangular groove is provided on the inner wall of the cap of the door body so as to face the triangular rib on the door sash side.

[0013] Further, a reinforcing plate of the door main body is also mounted on a front end portion of a door gasket mounting wall provided inside the cap of the door main body.

A door body, a door panel forming the front surface of the door body, a door gasket formed integrally with the door sash and the packing, an inner plate fixed to the door sash, and a heat insulating material; In the closed storage door having a door sash, the door sash portion has a concave groove opening toward the center of the door main body, and after inserting the outer peripheral flange of the inner plate into this groove, the heat insulating material is injected and foamed inside the door main body. The inner gasket is fixed to the door gasket, the packing section has the same cross-sectional shape, and the door sash section has a different shape and is formed by welding four corners of each side.

A method of manufacturing a door for a closed storage according to the present invention includes a door main body, a door panel portion forming a front surface of the door main body, a door gasket integrally formed with a door sash portion and a packing portion, and a door sash portion. An inner plate fixed to the
In the closed storage door having a heat insulating material, a stepped portion is provided on the outer peripheral side wall of the inner plate so as to hang over the fin of the packing portion of the door gasket, and the stepped portion is pressed by a heat insulating material foaming jig. Is what you do.

Further, between the step of the inner plate and the outer peripheral flange,
A plurality of continuous ribs are formed.

[0017]

The closed storage door according to the present invention can absorb positional variations when the inner plate is set down with the inner plate folded down, the position is determined at the time of final setting, and leakage of the heat insulating material to the outside can be prevented.

[0018]

Further, the adhesion between the sash portion on the cap side and the heat insulating material is assisted to prevent the door sash from coming off.

Further, the reinforcing plate can be set in the process before the inner plate is collapsed, and the operation becomes easier.

Further, the distance between the packing portion and the outer surface of the sash portion can be changed and combined, so that the margin of the packing portion to the intermediate partition can be adjusted and the inner volume efficiency can be improved.

According to the manufacturing method of the closed storage door of the present invention, the surface of a portion which is hidden by the packing portion and cannot be pressed by the jig can be reduced to a small range so as not to lose the foaming pressure. Leakage can be prevented.

Further, the strength of the inner plate surface of the portion that cannot be pressed by the jig can be increased, and deformation due to foaming pressure can be prevented.

[0024]

[Embodiment 1] An embodiment of the present invention will be described below with reference to the drawings. FIG.
In the drawings, 1 is a door body, 2 is a door panel, and 3 is a door gasket in which a door sash section 4 and a packing section 5 are integrated, and has door caps 10 and 11 above and below the door body 1.

In FIG. 2, a U-shaped groove 4c is formed in the door sash portion 4 so as to face the center of the door, and after the outer peripheral flange 6a of the inner plate 6 is inserted into the groove 4c, the heat insulating material 7 is injected and foamed. And fixed. An extremely small triangular groove 4d is continuously formed inside the groove 4c, and serves as an interference portion for preventing foaming leakage of the heat insulating material 7. FIG. 10 shows a flow chart of the assembling process of this embodiment.

At the tip of the U-shaped groove 4c of the door sash 4, a bent piece 4e is provided on the side opposite to the packing 5 so as to face the outside of the door, and the inner plate 6 is moved from the door sash 4 side. Push it into the packing 5 and bend it 4
e is inserted into the groove 4d by using e as a guide.

A plurality of projecting pieces 4f are provided from the door sash portion 4 so as to be embedded in the heat insulating material 7.
And it is difficult to peel off.

In FIG. 3, when the heat insulating material 7 is injected and foamed, the door gasket 3 and the inner plate 6 are assembled in advance, and are incorporated into the foaming jig 12 with the upper and lower caps 10 and 11 being set on the door panel 2. There, one side of the door gasket 3 is put upright along with one side of the door panel 2. Then inject the undiluted insulation material,
The inner plate 6 and the door gasket 3 fall down to the door panel 2 side, and the foaming upper jig 13 (shown in FIG. 8) is closed, and the heat insulating material 7 is filled. When the inner plate 6 and the door gasket 3 come into contact with the falling panel 2, the panel insertion groove 4a of the door sash portion 4 is formed so as to become wider toward the panel 2 so as to absorb variations in position when falling. Has become. Further, a plurality of soft fins 4g are provided on the inner wall of the groove 4a and are in contact with the end face flange 2a of the panel 2 to prevent the heat insulating material 7 from leaking outside.

The outer wall 4h of the door sash portion 4 on the packing portion 5 side is provided with a cutout portion 4i having a C surface toward the outside, and when a failure occurs due to a breakage of the packing portion 5 or the like, the packing is performed. Only the part 5 is removed so that the repair packing 14 can be mounted as shown in FIG.

In FIG. 5, the upper and lower caps 10 and 1 of the door are shown.
The door gasket 3 mounted inside 1 has a triangular rib 4k protruding from the outer wall 4j of the door sash portion 4, and the outer wall is inclined 4m inward so as to extend the inclined surface 4L of the triangular rib 4k. . Triangular grooves 10a and 11a are provided on the inner walls of the upper and lower caps 10 and 11 so as to face the triangular ribs 4k on the door sash side 4. When the inner plate 6 and the door gasket 3 fall during foaming, the inclination of the door sash portion 4 is 4 m. And mounted inside the upper and lower caps 10 and 11. After the mounting, the triangular rib 4k of the door sash 4 and the triangular grooves 10a and 11a of the upper and lower caps 10 and 11 are fitted so that they do not come off.

In FIG. 6, the door gasket 3 is of a four-side split type, and each four sides are assembled by welding. In the door gasket 3, the door sash portion 4 and the packing portion 5 generally have the same cross-sectional shape on all four sides, but in some cases, the cross-sectional shape of the packing portion 5 has the same shape, and the door sash portion 4 has the same shape. Some are welded in different combinations. On the basis of the door gasket 3a on the vertical side 1a of the door on the opening and closing axis side, the packing part 5 is installed so as to straddle the notch 4i of the door sash part on the opposite vertical side 3b and the upper and lower horizontal sides 3c, 3d. By changing the arrangement of the unit 5, the module determination of the product and the internal volume efficiency are improved.

In FIG. 7, the end face 4n of the door gasket 3 on the side of the door sash portion 4 to be the butt weld portion 3e is chamfered before the welding step, so that it is possible to prevent the door sash portion from projecting due to the variation of the butt portion. Along with
The burrs generated by welding can be absorbed by the C chamfered portion, and the deburring work is not required.

In FIG. 8, a step 6c is provided on the outer peripheral side wall 6b of the inner plate 6 so as to hang over the fin 5a of the packing part 5 of the door gasket 3, and the step 6c is held down by a foaming jig 13 and The positioning of the plate 6 and the root of the inner plate 6, that is, the packing portion 5 prevents the inner plate 6 from being deformed due to the foaming pressure in a small range in which the inner plate 6 is hidden by the upper foaming jig 13.

As shown in FIG. 9, a plurality of continuous ribs 6d are formed between the stepped portion 6c, which is the root of the inner plate 6, and the outer peripheral flange 6a, so that the deformation preventing effect is improved. I have.

As shown in FIG. 5, upper and lower caps 10 and 11 are used to increase the size of the door and improve the strength of the door body 1 such as a drawer door.
A wall 10b on which the door gasket 3 provided on the inside is placed;
After the reinforcing plate 15 is also placed on the front end portions 10c and 11c of the 11b at the same time, the inner plate 6 and the door gasket 3 are turned down to fill the heat insulating material 7.

Embodiment 2 FIG. In the above embodiment, the reinforcing plate 1
5 is attached to the end of the wall 10b for placing the door gasket 3 on the upper and lower caps 10 and 11 side.
And the door gasket 3 may be set up in a state where it is attached to the combination side, and the heat insulating material 7 may be turned down after being injected.

[0037]

In the closed storage door according to the present invention, the panel insertion groove of the door sash portion is formed wide toward the panel so as to absorb the variation in the position when the inner plate and the door gasket fall down. When a panel is inserted into the inner wall of the panel insertion groove, by providing a plurality of soft fins so as to make contact with each other, it is possible to absorb the position variation when the inner plate is set down and set, and the position is determined at the time of final setting,
In addition, leakage of the heat insulating material to the outside can be prevented.

[0038]

Further, a triangular rib is projected from an outer wall of a door sash portion of a door gasket mounted inside a cap of a door body, and an outer wall is inclined inward so as to extend an inclined surface of the triangular rib. By providing the triangular groove on the inner wall of the cap of the main body so as to face the triangular rib on the door sash side, the adhesion between the sash portion on the cap side and the heat insulating material is assisted, and the door sash is prevented from coming off.

Further, the reinforcing plate of the door main body is also mounted on the tip of the door gasket mounting wall provided inside the cap of the door main body. Can be set and workability is good.

In the door gasket, the packing section has the same cross-sectional shape, and the door sash section has a different shape and is formed by welding the corners of the four sides, so that the packing section and the outer surface of the sash section are formed. Can be changed and combined with each other, the margin of the packing portion to the middle partition can be adjusted, and the internal volume efficiency can be improved.

In the method for manufacturing a closed storage door according to the present invention, a step is provided on the outer peripheral side wall of the inner plate so as to hang over the fin of the packing part of the door gasket, and the step is used as a heat insulating foam jig. As a result, it is possible to prevent the door sash from projecting due to the variation of the butting portion, and also to absorb the burrs generated by welding by the chamfered portion, and thus the deburring operation is not required.

Also, between the step of the inner plate and the outer peripheral flange,
Since a plurality of continuous ribs are formed, the inner plate surface strength of a portion that cannot be pressed by the jig can be increased to prevent deformation due to foaming pressure.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a closed storage door according to Embodiment 1 of the present invention.

FIG. 2 is an enlarged cross-sectional view taken along line YY of FIG.

FIG. 3 is a perspective view showing a pre-insulation foaming set of the closed storage door according to the first embodiment of the present invention.

FIG. 4 is a sectional view of the closed storage door according to the first embodiment of the present invention, in which a service packing is mounted.

FIG. 5 is an enlarged cross-sectional view taken along line XX of FIG. 1;

FIG. 6 is a plan view of the hermetically closed storage door according to the first embodiment of the present invention, in which a door gasket having a different shape is welded.

FIG. 7 is a plan view showing a method of welding a door gasket of the closed storage door according to the first embodiment of the present invention.

FIG. 8 shows the closed storage door according to the first embodiment of the present invention.
It is sectional drawing which shows the state which set the door to the foaming jig.

FIG. 9 is a perspective view showing an appearance of an inner plate of the closed storage door according to the first embodiment of the present invention.

FIG. 10 is a flowchart of an assembling process of the closed storage door according to the first embodiment of the present invention.

FIG. 11 is an external perspective view of a conventional closed storage door.

FIG. 12 is an enlarged cross-sectional view taken along line ZZ of FIG. 10;

FIG. 13 is a plan view showing a door gasket of a conventional closed storage door.

FIG. 14 is a sectional view of a conventional door mounting portion.

FIG. 15 is a flowchart of an assembling process of a conventional closed storage door.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door main body 2 Door panel 3 Door gasket 4 Door sash part 4a Insertion groove 4c U-shaped groove 4d Triangular groove 4e Bending piece 4f Projection piece 4g Fin 4h Outer wall 4i Notch part 4j Outer side wall 4k Triangular rib 4L Inclined surface 4m Inclined slope 4m Part 6 Inner plate 6a Flange 7 Heat insulating material 10 Door cap 11 Door cap 12 Foaming jig 14 Repair-only packing 15 Reinforcement plate

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F25D 23/02 304 F25D 23/02 305

Claims (6)

(57) [Claims] 1. A door body, a door panel portion forming a front surface of the door body, a door gasket formed integrally with a door sash portion and a packing portion, an inner plate fixed to the door sash portion, and a heat insulating material. Wherein the door sash portion has a concave groove opening toward the center of the door main body, and after inserting the outer peripheral flange of the inner plate into the groove, the door sash portion is inserted into the inside of the door main body. The heat insulating material is injected and foamed to fix the inner plate, and the panel insertion groove of the door sash portion is formed wider toward the panel side so as to absorb a variation in position when the inner plate and the door gasket fall down. A door for a closed storage, wherein a plurality of soft fins are provided so as to be in contact with each other when a panel is inserted into an inner wall of the panel insertion groove. 2. A door body and a front surface of the door body.
Door panel, door sash and packing are integrated
A door gasket formed and secured to the door sash
A closed storage door having an inner plate and a heat insulating material.
The door sash is open toward the center of the door body.
The inner plate has an indented groove, and the groove is formed in the groove.
After inserting the insulation, inject the insulation into the door body
Bubble to fix the inner plate and attach it inside the door body cap
Triangle on the outer wall of the door sash of the door gasket
The triangular rib, and extend the inclined surface of the triangular rib.
So that the outer wall is inclined inward so that the door body
On the inner wall of the cap, make sure to face the triangular rib on the door sash side.
A closed storage door characterized by having a square groove. 3. A door gas provided inside a cap of a door body.
A reinforcing plate for the door body is also placed at the tip of the wall for placing the ket.
3. The closed storage according to claim 2, wherein:
door. 4. A door body and a front surface of the door body.
Door panel, door sash and packing are integrated
A door gasket formed and secured to the door sash
A closed storage door having an inner plate and a heat insulating material.
The door sash is open toward the center of the door body.
The inner plate has an indented groove, and the groove is formed in the groove.
After inserting the insulation, inject the insulation into the door body
Bubble to fix the inner plate, and the door gasket
The cross section of the king part has the same shape, and the door sash part is
Weld each four corners while forming different shapes
A door for a closed storage, characterized in that: 5. A door body and a front surface of the door body.
Door panel, door sash and packing are integrated
A door gasket formed and secured to the door sash
A closed storage door having an inner plate and a heat insulating material.
The packing part of the door gasket on the outer side wall of the inner plate.
Of fins is provided, and the step is made of insulating material.
Sealed storage characterized by being held down by a foam jig
Manufacturing method of door for storage. 6. A plurality of inner plates are provided between the step portion of the inner plate and the outer peripheral flange.
6. The continuous rib of claim 5 formed.
Manufacturing method of closed storage door.