JPS6126552Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an insulating rain door in which a heat insulating material is interposed between the opposing surfaces of a front plate and a back plate that face each other with a predetermined interval.

Conventionally, an insulating storm door has been known in which a heat insulating material is interposed between the facing surfaces of a front plate and a back plate facing each other with a predetermined distance between them. They were either flat or simply uneven for decorative purposes. For this reason, if there is a large temperature difference between the front panel side and the back panel side due to sunlight irradiation, etc., the insulating rain shutters will bulge and deform toward the high temperature side, which not only spoils the aesthetics but also causes damage to the workmanship. This made it difficult to open and close the door horizontally and to move it in and out of the door bag. In order to prevent these deformations, some shutters are reinforced with additional reinforcing members such as crosspieces, but this method not only complicates the manufacturing process but also increases manufacturing costs. There is.

The present invention was devised in view of the above-mentioned circumstances and to eliminate the drawbacks, and the purpose is to reinforce the insulating rain shutters without using any special reinforcing members, and to strengthen the front and back panels. To suppress the bulging deformation caused by the temperature difference between the parts to a limit that does not hinder cross-feed opening/closing and the operation of putting in and out of the door bag, thereby simplifying the manufacturing process and reducing the manufacturing cost. The purpose of this project is to provide an insulating storm door that can provide

The configuration of the present invention will be explained based on an embodiment shown in the drawings.

A is an insulating rain door, and the front plate 1 and the back plate 2 that make up the insulating rain door A face each other with a predetermined interval, and the areas near the left and right sides of the insulating rain door A have the estimated thickness of the central area B. A protrusion C that is thicker than that is formed. That is, the back plate 2 has left and right edges bent perpendicularly to the front plate 1 direction to form a prospective surface 2a, and a substantially concave locking groove for the vertical frames 4, 4a is formed in the vicinity of the left and right sides. 2b is bent, and furthermore, a wide recess consisting of a rising surface 2c and a step surface 2d is provided in the central region in the vertical direction, and the rising surface 2c of the recess is perpendicular to the step surface 2d. By forming it, it can be used as a handle. On the other hand, the front plate 1 has its left and right edges bent perpendicularly to the back plate 2 direction to form a prospective surface 1a, and the left and right side adjacent areas face the locking grooves 2b and have the same shape. Locking grooves 1b are formed for the vertical frames 4, 4a, and several stepped grooves 1c are provided between positions corresponding to the rising surfaces 2c, 2c of the back plate 2. Then, the facing surface 1a of the front plate 1 is overlapped so as to cover the facing surface 2a of the back plate 2 from the outside, and the front plate 1 and the back plate 2 are formed into a so-called lunch box shape. A heat insulating material 3 made of polyurethane, polystyrene, rock wool, glass wool, etc. is interposed between the opposing surfaces by appropriate means such as injection foaming.

4 and 4a are vertical frames on the left and right sides of the insulating shutter 1,
The vertical frames 4, 4a are formed in a C-shape in cross section, and the parallel sides 4', 4a' are the front plate 1 and the back plate 2.
sandwiching the left and right sides of, and both ends 4'',
4a'' engages with the locking grooves 1a, 1b.The rear side longitudinal direction of the central portions 4, 4a that abut the prospective surfaces 1a of the surface plates 1 of the left and right vertical frames 4, 4a are , a connection piece 5 that is retracted outward and a connection groove 6 that is approximately C-shaped with its opening facing outside are formed, respectively, and the connection piece 5 and the connection groove 6 are connected to other adjacent insulating rain shutters A. By connecting with the connecting groove 6 and the connecting piece 5, each heat-insulating storm door A is connected in a single, airtight manner.

7 is an upper stile formed in a substantially H-shape in longitudinal section,
At the lower end portion corresponding to the step surface 2d formed in the central area of the back plate 2, there is a contact piece 7 that comes into contact with the step surface 2d.
A is integrally bent vertically toward the surface plate 1, and a groove 7b for inserting mohair, which is opened toward the outside, is integrally formed at the upper end.
Reference numeral 8 denotes a lower stile formed in a substantially H-shape in longitudinal section, and the upper end portion corresponding to the stepped surface 2d formed in the central area of the back plate 2 is in contact with the stepped surface 2d and has a part Adjustment port 13 of bolt 14 for vertical adjustment of door wheel 12
A contact piece 8a with a cutout is formed by integrally bending the contact piece 8a vertically toward the surface plate 1. The lower half inner space 7c of the upper stile 7 and the upper half inner space 8b of the lower stile 8, which sandwich the upper and lower ends of the front plate 1 and the back plate 2, are provided with a material for preventing leakage of the heat insulating material 3. A sealing material 9 such as soft urethane foam is provided, and a door wheel 12 is installed inside the lower half inner space 8c of the lower stile 8.

Reference numeral 10 denotes corner pieces to which the four corners of the left and right vertical stiles 4, 4a, the upper stile 7, and the lower stile 8 are fixed via bolts 11.

The roller 12 can be adjusted up and down within a predetermined range by means of a vertical adjustment bolt 14 which faces an adjustment hole 13 formed in a notch in the abutment piece 8a of the lower frame 8.

Next, the operation of the present invention will be explained.

Now, if the front panel 1 of the insulating rain door A is exposed to sunlight from the outside and the temperature on the front panel 1 side becomes higher than the temperature on the back panel 2 side, the expected thickness will be a wide center area B with a thinner expected thickness. The thick protrusions C in the vicinity of both the left and right sides bulge and deform in the direction of the surface plate 1, but in the process of this bulge deformation, the amount of bulge deformation in the central region B is significantly larger than that of the protrusions C. However, since the time course of the deformation propensities of the two is different, even if the protruding portion C is in the middle of bulging deformation, the deformation propensity of the central region B is stabilized, and the back plate 2 returns from the maximum deformation state to the original state. As it tries to return to its original direction, the combined stress of the deforming forces of both prevents the bulging deformation of the entire insulating storm door A to a limit that does not interfere with the horizontal movement opening/closing and the operation of moving in and out of the door bag. Ru.

Therefore, the heat-insulating rain door A can suppress thermal expansion deformation without using any special reinforcing members, so it can be easily manufactured without complicating the manufacturing process, and the manufacturing cost can be reduced. can be significantly reduced.

Moreover, since the central region B is formed as a wide recess, not only the vertical adjustment bolt 14 of the door roller 12 can be installed in the recess of the central region B, but also the normally used shutter lock, steady rest, center It is easy to install the crosspieces, etc., and also to adjust and operate them easily, and since the rising surface 2c can also be used as a handle for horizontally opening and closing the insulating storm door A, there is no need to provide any special handles. .

In short, the present invention provides an insulating rain door in which a heat insulating material is interposed on the opposing surfaces of a front plate and a back plate facing each other with a predetermined interval, and the central area of the back plate of the insulating rain door is exposed to sunlight. Since a wide concave portion consisting of a rising surface and a stepped surface is formed in the vertical direction to suppress the bulging deformation of the storm door due to light irradiation, the insulating rain door can be reinforced against thermal deformation without using any special reinforcing members. As a result, the bulging deformation caused by the temperature difference between the front and back panels can be suppressed to a limit that does not interfere with the horizontal opening and closing of the storm door and the operation of moving in and out of the door bag, thereby simplifying the manufacturing process. This has an extremely useful practical effect in that it is possible to provide an insulating shutter with high strength against thermal deformation at a low cost, while reducing manufacturing costs.

[Brief explanation of the drawing]

The drawings show an embodiment of the insulating rain door according to the present invention, and FIGS. 1 and 2 are overall perspective views,
3 is a sectional view taken along the line A--A in FIG. 1, FIG. 4 is a sectional view taken along the line A--I in FIG. 1, and FIG. 5 is a partially enlarged view of FIG. 1. In the diagram, A...Insulating rain shutters, B...Central area, C...
Projection, 1... Surface plate, 1a... Prospective surface, 1b
...Latching groove, 1c...Stepped groove, 2...Back plate, 2
a... Prospective surface, 2d... Locking groove, 2c... Rising surface, 2d... Step surface, 3... Insulating material, 4,4
a...Left and right stiles, 4', 4a'...Both sides, 4'',
4a″... Both ends, 5... Connection piece, 6... Connection groove,
7... Upper stile, 7a... Contact piece, 7b... Groove, 7c
... lower half inner space, 8 ... lower stile, 8a ... contact piece,
8b... Upper half inner space, 8c... Lower half inner space, 9...
...Sealing material, 10...Corner piece, 11...
Bolt, 12...Door wheel, 13...Adjustment port, 14...
...This is a bolt for vertical adjustment.

Claims (1)

[Scope of utility model registration request] In an insulating rain door in which a heat insulating material is interposed between the facing surfaces of a front plate and a back plate facing each other with a predetermined interval, the central area of the back plate of the above-mentioned insulating rain door is exposed to bulging deformation of the rain door due to sunlight irradiation. An insulating rain door characterized by having a wide concave portion formed in the vertical direction consisting of a rising surface and a stepped surface to prevent