JP7038583B2 - Panel complex - Google Patents

Description

The present invention relates to a panel complex.

A panel composite composed of a combination of a plurality of panels made by press-molding a metal foil such as aluminum foil, as in Patent Documents 1 and 2, for use in an oil-proof panel or an exhaust port cover of a kitchen range. It has been known.

The panel complex comprises a first panel and a second panel, the first panel has a panel body and an outer edge winding portion provided on the outer edge of the panel body, and the second panel has a panel body and a panel. It has an inner edge winding portion provided on the outer edge of the main body.
The winding diameter of the outer edge winding portion of the first panel is set to be slightly larger than the winding diameter of the inner edge winding portion of the second panel, and the inner edge winding portion is inserted into the outer edge winding portion.
Therefore, it is possible to slide the panels together in the length direction of the inner and outer edge winding portions. Therefore, the dimensions of the oil shield panel, the exhaust port cover, and the like can be adjusted according to the dimensions of the kitchen range, the exhaust port, and the like.

By the way, these outer edge winding portions and inner edge winding portions curl the metal foil on the outer edge from the winding start end corresponding to the boundary with the panel body toward the winding end corresponding to the end edge of the foil during press molding of the panel. Is formed of.
At the time of press molding of the panel, it is difficult to insert the inner edge winding portion into the outer edge winding portion again after the first panel and the second panel are individually molded. Therefore, the metal leaf for the first panel. And the metal leaf for the second panel are overlapped with each other, and the outer edge winding portion is formed on the outside and the inner edge winding portion is formed on the inside at the same time.

Specifically, as shown in FIG. 8A, first, the upper mold 50 and the lower mold of the mold are in a state where the metal foil f3 for the first panel and the metal foil f4 for the second panel are overlapped with each other. It is sandwiched between 60.
Next, as shown in FIG. 8B, the elevating bodies 52 and 62 of the upper mold 50 and the lower mold 60 are once lowered with respect to the mold main bodies 51 and 61 and the outer frame bodies 53 and 63.
The metal foils f3 and f4 are cut to a predetermined size at the boundary between the elevating body 52 and 62 and the outer frame bodies 53 and 63, and the outer edge thereof faces downward from the boundary between the mold main bodies 31 and 51 and the elevating body 52 and 62. It is bent into a bent portion to form a bent portion. Curling grooves 52a and 62a are provided on the mating surfaces of the elevating bodies 52 and 62, respectively, and the curling grooves 52a and 62a are vertically aligned to form a curling space having a substantially circular cross section. The edges of the bent portions of the metal foils f3 and f4 are introduced into this curling space.
From this state, as shown in FIG. 8C, when the elevating bodies 52 and 62 are raised until they return to the initial positions (positions at the same height as the mold bodies 51 and 61), the bent portions of the metal foils f3 and f4 are bent. Is wound up along the inner peripheral surfaces of the curling grooves 51a and 61a, and is formed at the same time in a state where the outer edge winding portion and the inner edge winding portion overlap each other.

Here, the metal foil f3 and the metal foil f4 have a portion where they overlap and a portion where they do not overlap, and the winding diameter of the inner edge winding portion is a portion where the metal foils f3 and f4 overlap each other and a metal foil. It differs depending on where f3 and f4 are press-molded without overlapping.
That is, in the entire length of the inner edge winding portion, the metal leaf f4 is wound along the inner peripheral surfaces of the curling grooves 52a and 62a at the portion not inserted into the outer edge winding portion, so that the winding diameter is the curling groove 52a. It is almost the same as the diameter of 62a. On the other hand, at the portion inserted in the outer edge winding portion, the metal foil f3 is wound along the inner peripheral surfaces of the curling grooves 52a and 62a, and the metal foil f4 is wound inside the metal foil f4, so that the inner edge winding portion is the outer edge. The winding diameter is reduced by the amount corresponding to the thickness of the metal foil f3 of the winding portion.
Therefore, at the time of press molding of the panel composite, a step is formed between the portion inserted in the outer edge winding portion of the inner edge winding portion and the portion not inserted.

When a step is formed on the inner edge winding portion in this way, when the panel composite is slid from the initial state as it is molded, the outer edge winding portion is elastically deformed in the direction of expanding the diameter and the step on the inner edge winding portion is formed. Generally, there is a problem that the sliding resistance is large because it is necessary to overcome the problem.

Japanese Unexamined Patent Publication No. 2004-116928 Japanese Unexamined Patent Publication No. 2001-31521

By the way, as shown in FIG. 8C, in the conventional panel composite, there is no idea of providing a difference between the thickness of the metal foil f3 forming the first panel and the thickness of the metal foil f4 forming the second panel. Also, none of the metal foils of the first panel and the metal foil of the second panel had different thicknesses.
Then, in order to secure the strength of the entire panel composite, the metal foils of the first and second panels having the same thickness and a relatively large thickness were selected.

However, if the thickness of the metal foil of the first panel is large, the rigidity of the outer edge winding portion is high and elastic deformation in the direction of increasing the diameter is difficult. It was supposed that a particularly large force was required for the outer edge winding portion of the first panel to get over the step of the portion.
In addition, if the outer edge winding portion is not easily elastically deformed even after overcoming the step of the inner edge winding portion, a gap is not easily created between the outer edge winding portion and the inner edge winding portion, so that the sliding resistance increases and the slide operation is still performed. There is a problem that requires great power.

Therefore, the problem to be solved by the present invention is that when the first panel and the second panel are slid from each other, the panel composite is easily elastically deformed in the direction of expanding the diameter of the outer edge winding portion of the first panel. This is to reduce the sliding resistance.

In order to solve the above-mentioned problems, as the panel complex according to the invention, a panel main body and a first panel formed from a metal foil having an outer edge winding portion formed by curling the outer peripheral portion of the panel main body. A second panel formed from metal leaf, which is formed by curling the outer peripheral portion of the panel body and has an inner edge winding portion inserted into the outer edge winding portion of the first panel. We adopted a configuration that provides.
The first panel and the second panel are slidable along the length direction of the outer edge winding portion and the inner edge winding portion, and the thickness of the metal foil of the first panel is t1. When the thickness of the metal foil of the second panel is t2, a configuration in which t1 <t2 is established is adopted.

By adopting a configuration in which the thickness of the metal foil of the first panel is reduced, the rigidity of the outer edge winding portion is reduced, and elastic deformation in the direction of increasing the diameter is facilitated. Further, since the size of the step of the inner edge winding portion is substantially equivalent to the thickness of the metal foil of the first panel, if the thickness of the metal foil of the first panel is reduced, the size of the step is also reduced. Therefore, it does not require a large force for the first panel to get over the step of the inner edge winding portion at the time of initial sliding. Further, even during a normal slide operation, the diameter of the outer edge winding portion is appropriately expanded to easily create a gap between the outer edge winding portion and the inner edge winding portion, and the sliding resistance is reduced.
Since the thickness of the metal foil of the second panel can be increased, the outer edge winding portion is supported by the inner edge winding portion having a large thickness from the inside, and the outer edge winding portion is crushed during transportation of the panel composite or the like. Is prevented.

In the panel composite according to the invention, when the thickness of the metal foil of the first panel is t1 and the thickness of the metal foil of the second panel is t2, 0.7t2 ≦ t1 ≦ 0.95t2 is established. It is preferable to adopt the configuration.

By configuring t1 to 0.95 t2 or less, it is possible to prevent the thickness of the aluminum foil of the first panel from becoming too large and making it difficult for the outer edge winding portion to be deformed in the direction of increasing the diameter during the slide operation.
By configuring t1 to 0.7t2 or more, it is possible to prevent the thickness of the aluminum foil of the first panel from becoming too small, resulting in insufficient strength of the first panel and damaging the panel body and the outer edge winding portion. To.

In the panel complex according to the invention, it is preferable to adopt a structure in which the thickness of the metal foil of the first panel is 50 to 200 μm.

By configuring the thickness of the metal foil of the first panel to be 50 μm or more, it is possible to prevent the strength of the first panel from becoming insufficient.
By configuring the thickness of the metal foil of the first panel to be 200 μm or less, it is possible to prevent the outer edge winding portion from being easily deformed, hindering the slide operation, and increasing the material cost of the first panel.

In the panel composite according to the invention, the first panel further has an inner tongue piece extending from the winding end of the outer edge winding portion and along the inner peripheral surface of the inner edge winding portion of the second panel. The second panel is folded back from the winding end of the inner edge winding portion and further has an outer tongue piece along the outer peripheral surface of the outer edge winding portion of the first panel, the first panel and the second panel. The panel adopts a configuration in which the inner tongue piece and the outer tongue piece abut at a predetermined position when relatively slid along the length direction of the outer edge winding portion and the inner edge winding portion. be able to.

With this configuration, the slide range of the first and second panels is limited to the range where the inner tongue piece and the outer tongue piece abut, so that the inner edge winding portion is completely pulled out from the outer edge winding portion, and the first It is prevented that the panel of the first panel and the second panel are separated from each other.

The panel complex according to the invention can be an exhaust port cover of a kitchen range.
Since it is possible to change the length dimension of the exhaust port cover by sliding the panels to each other, it can be applied to exhaust ports of various dimensions with a simple structure.
Further, as the metal foil constituting each panel of the panel composite according to the invention, aluminum foil is preferable because it is relatively inexpensive, lightweight, easy to process, and excellent in heat resistance and corrosion resistance.

Since the present invention is configured as described above, the panel composite is elastically deformed in the direction of expanding the diameter of the outer edge winding portion of the first panel when the first panel and the second panel are slid to each other. It has become possible to easily reduce the sliding resistance.

Perspective view of the exhaust port cover Perspective view showing the usage state of the exhaust port cover Cross-sectional view taken along the arrow in FIG. Enlarged view of the main part of FIG. Vertical cross-sectional view of the exhaust port cover manufacturing equipment The figure which shows the manufacturing process of the exhaust port cover Enlarged view of the main part of FIG. Comparison diagram with FIG. 6 showing the manufacturing process of the conventional exhaust port cover.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The exhaust port cover 1 of the embodiment shown in FIGS. 1 and 2 has an exhaust port D of the system kitchen K so that oil stains and the like do not adhere to or enter the exhaust port D attached to the IH cooker I. It is used by covering it so as to cover it.
Since the entire exhaust port cover 1 is curved in an arc shape in the lateral direction, both ends of the exhaust port cover 1 in the longitudinal direction and the exhaust port D with the exhaust port cover 1 covered with the exhaust port D. A gap is formed between the system kitchen K and the top surface of the system kitchen K provided with the above. Therefore, the flow of air around the exhaust port is not obstructed.

As shown in FIGS. 1 to 3, the exhaust port cover 1 of the embodiment is a panel complex composed of a first panel 10 and a second panel 20, and the first panel 10 and the second panel 20 are mutually connected with each other. It is connected so that it can slide in its longitudinal direction.
Therefore, by sliding the first panel 10 or the second panel 20, the longitudinal dimension of the exhaust port cover 1 can be adjusted according to the dimension of the exhaust port as shown in FIGS. 1 and 2. ..

The first panel 10 is press-molded from aluminum foil and has a panel main body 11 and an outer edge winding portion 12.
The panel body 11 has a substantially rectangular shape as a whole in a plan view. Further, the panel main body 11 is curved in an arc shape in the lateral direction so that the front surface thereof is convex and the back surface is concave.
A rib 11a is formed on the panel body 11. The ribs 11a are formed in a U-shape along both long sides and one short side of the panel main body 11, and are arranged in three layers.

The outer edge winding portion 12 is connected to both long sides and one short side (the short side on the side where the rib 11a is provided) of the outer edges of the panel main body 11, and is formed on the panel main body during press molding. It is formed by curling the outer edge. The corners where the outer edge winding portion 12 on the long side and the outer edge winding portion 12 on the short side of the panel main body 11 meet are rounded.
As shown in FIGS. 3 and 4, the outer edge winding portion 12 is first curved toward the front surface side of the panel body 11 from the winding start end S1 corresponding to the boundary with the panel body 11, and then wraps around to the back surface side of the panel body 11. The winding end E1 has entered the inside of the outer edge winding portion 12.

The second panel 20 is press-molded from aluminum foil and has a panel main body 21 and an inner edge winding portion 22.
The panel body 21 has a substantially rectangular shape as a whole in a plan view. Further, the panel main body 21 is curved in an arc shape in the lateral direction so that the front surface thereof is convex and the back surface is concave.
A rib 21a is formed on the panel body 21. The ribs 21a are formed in a U-shape (inverted U-shape) along both long sides and one short side of the panel main body 21, and are arranged in three layers.
The panel main body 21 has a substantially symmetrical shape with the panel main body 11 of the first panel 10, and at least a part thereof overlaps with the panel main body 11 of the first panel. The front surface of the panel body 21 faces the back surface of the panel body 11 in an overlapping state.
Further, as shown in FIG. 3, the width of the rib 21a of the panel main body 21 is narrower than the width of the rib 11a of the panel main body 11, and the height of the rib 21a is substantially the same as the height of the rib 11a. When the panel body 11 and the panel main body 11 overlap each other, the two opposite sides of the inverted U-shaped rib 21a are fitted into the opposite two sides of the U-shaped rib 11a.

The inner edge winding portion 22 is connected to both long sides of the outer edge of the panel body 21 and one short side (the short side on the side where the rib 21a is provided), and is connected to the outer edge of the panel body 21 during press molding. It is formed by curling. The corners on the side where the inner edge winding portion 22 is continuously provided on the short side of the panel main body 21 are rounded.
As shown in FIG. 3, the inner edge winding portion 22 is first curved toward the front surface side of the panel main body 21 from the winding start end S2 corresponding to the boundary with the panel main body 21, and then wraps around to the back surface side of the panel main body 21 to wind the winding. The terminal E2 has entered the inside of the inner edge winding portion 22.
As shown in FIG. 4, a gap is formed between the winding end E1 in the outer edge winding portion 12 of the first panel 10 and the inner peripheral surface of the inner edge winding portion 22.

Here, as shown in FIG. 4, the winding diameter of the inner edge winding portion 22 of the second panel 20 is smaller than the winding diameter of the outer edge winding portion 12 of the first panel 10, and is continuously provided on the long side of the panel main body 21. At least a part of the inner edge winding portion 22 is inserted into the outer edge winding portion 12 connected to the long side of the panel main body 11 of the first panel 10.
In the inserted state, the inner peripheral surface of the outer edge winding portion 12 and the outer peripheral surface of the inner edge winding portion 22 face each other. Further, the winding end E1 of the outer edge winding portion 12 is inserted between the winding start end S2 and the winding end E2 of the inner edge winding portion 22.

In this way, the first panel 10 and the second panel 20 are connected to each other, and are guided by the fitting ribs 11a and 21a along the longitudinal direction of the outer edge winding portion 12 and the inner edge winding portion 22, and are relative to each other. It is possible to slide.
By connecting the first panel 10 and the second panel 20, the outer edge winding portion 12 connected to one short side of the panel main body 11 of the first panel 10 and the panel main body 21 of the second panel 20 are connected. The exhaust port cover 1 is all around the entire circumference of the exhaust port cover 1 due to the inner edge winding portions 22 connected to one short side and the inner and outer edge winding portions 12 and 22 connected to both long sides of the panel main body 11 and the panel main body 21. The rim winding part will be attached to. Further, the exhaust port cover 1 has a rectangular shape with rounded corners in a plan view shape.

As shown in FIGS. 3 and 4, the thickness t1 of the aluminum foil constituting the first panel 10 is smaller than the thickness t2 of the aluminum foil constituting the second panel 20. With this configuration, when the first panel 10 or the second panel 20 is slid, the outer edge winding portion 12 of the first panel 10 is deformed in the direction of increasing the diameter because the thickness t1 of the aluminum foil is thin. It's easier to do. Therefore, the frictional resistance during the slide operation is reduced, and the operation can be smoothly performed without requiring a large force.
Here, the ratio of the thickness t1 of the aluminum foil of the first panel to the thickness t2 of the aluminum foil of the second panel is not particularly limited, but is preferably 0.7t2 ≦ t1 ≦ 0.95t2.
If t1 exceeds 0.95t2, the thickness of the aluminum foil of the first panel becomes too large, and there is a possibility that the outer edge winding portion 12 is less likely to be deformed in the direction of increasing the diameter during the slide operation.
When t1 is less than 0.7t2, the thickness of the aluminum foil of the first panel becomes too small, and the panel body of the first panel is damaged during normal use, or the outer edge winding portion of the first panel is damaged during the slide operation. There is a risk of doing it.
The size of the thickness t1 of the metal foil of the first panel is not particularly limited, but can be exemplified to be 50 to 200 μm. If it is less than 50 μm, the strength of the first panel 10 may be insufficient, and if it is more than 200 μm, the outer edge winding portion 12 may not be easily deformed and the slide operation may be hindered. Material costs are high.
The size of the thickness t2 of the metal foil of the second panel 20 is not particularly limited as long as it is larger than the thickness t1 of the metal foil of the first panel 10, but it can be exemplified that it is 100 to 300 μm.

Further, as shown in FIG. 4, the distance between the winding start end S2 of the inner edge winding portion 22 and the outer peripheral surface of the outer edge winding portion 12, that is, the winding start end S2 and the virtual extension from the winding start end S2 along the surface of the panel body 21. The distance d between the surface and the intersection of the outer peripheral surface of the outer edge winding portion 12 is sufficiently large. Therefore, it is possible to take a large amount of deformation in the direction of expanding the diameter of the outer edge winding portion 12 at the time of sliding, and the operation can be performed more smoothly.
The distance d is not particularly limited as long as it is sufficiently larger than the thicknesses t1 and t2 of the metal foil, but is preferably 0.2 mm or more and 1.0 mm or less. When d is less than 0.2 mm, the deformation allowance of the outer edge winding portion 12 becomes smaller, and at the time of sliding, the portion near the winding end E1 hits the inner peripheral surface of the inner edge winding portion 22 near the winding start end S2. Since the diameter expansion of the outer edge winding portion is suppressed, the frictional resistance may increase due to being restrained from the outer circumference thereof as in the conventional case. If d exceeds 1.0 mm, the cavity inside the outer edge winding portion 12 becomes too large and the strength decreases, and the outer edge winding portion 12 may be easily crushed during use or transportation of the exhaust port cover 1. .. Further, when the outer edge winding portion 12 expands outward during springback or sliding, the winding end E1 is easily exposed to the outside, and there is a risk that the winding end E1 may hurt the fingers.
Further, since a gap is formed between the winding end E1 in the outer edge winding portion 12 of the first panel 10 and the inner peripheral surface of the inner edge winding portion 22, the outer edge winding portion 12 is elastically deformed in the direction of expanding the diameter. At that time, the winding end E1 abuts on the inner peripheral surface of the inner edge winding portion 22 so as not to hinder the diameter expansion.

When the radius of curvature at the winding start end S1 of the outer edge winding portion 12 of the first panel 10 is R, the winding diameter of the outer edge winding portion 12 is approximated to 2πR, but the winding starting end at the outer edge winding portion 12 of the first panel 10 When the winding length from S1 to the winding end E1 is L, it is preferably 1.1 (2πR) ≦ L ≦ 2 (2πR). 1.2 (2πR) ≦ L ≦ 1.7 (2πR) is more preferable, and 1.3 (2πR) ≦ L ≦ 1.5 (2πR) is more preferable.
If L is less than 2.2πR, the winding length is too short and the winding end E1 is exposed to the outside of the outer edge winding portion 12, which may damage the fingers or get caught in the panel body 11 during the slide operation. Operation may be hindered. If L exceeds 4.0πR, the winding length is too long, the material cost increases, and the winding end E1 may enter the inner part of the inner edge winding portion 22 and the frictional resistance during the slide operation may increase. ..
The winding diameters of the outer edge winding portion 12 and the inner edge winding portion 22 are not particularly limited, but can be exemplified by 1.5 to 5 mm. When the outer edge winding portion 12 and the inner edge winding portion 22 are formed by overlapping and press-molding two metal foils, the winding diameter of the inner edge winding portion 22 is reduced by the thickness of the metal foil of the outer edge winding portion 12.

The configuration of the exhaust port cover 1 of the embodiment is as described above, and next, the manufacturing method of the embodiment of the exhaust port cover 1 will be described.
In carrying out the manufacturing method of the embodiment, a press molding machine as shown in FIG. 5 is used. The press molding machine has an upper die 30 and a lower die 40 as dies, and press molding is performed on the mating surface (pressing surface) of the upper die 30 and the lower die 40.

The upper mold 30 has a mold main body 31, an elevating body 32 arranged adjacent to the outer periphery of the mold main body 31, and an outer frame body 33 arranged adjacent to the outer periphery of the elevating body 32. The elevating body 32 can perform the elevating operation independently of the mold body 31 and the outer frame body 33. A semi-circular curling groove 32a is provided on the mating surface of the elevating body 32.
Similarly, the lower mold 40 has a mold body 41, an elevating body 42 arranged adjacent to the outer periphery of the mold main body 41, and an outer frame body 43 arranged adjacent to the outer periphery of the elevating body 42. The elevating body 42 can perform the elevating operation independently of the mold body 41 and the outer frame body 43. A semi-circular curling groove 42a is provided on the mating surface of the elevating body 42.

First, the small-thick metal leaf f1 for the first panel 10 and the thick metal leaf f2 for the second panel 20 are placed on the side of the upper mold 30 with the metal foil f2 on the side of the upper mold 30 and on the side of the lower mold 40 with the metal foil f1. As shown in FIG. 6A, the entire upper mold 30 is lowered and sandwiched between the lower mold 40 and the lower mold 40.
At this time, the panel main body 11 of the first panel 10 and the panel main body 21 of the second panel 20 are formed by the mold main body 31 of the upper mold 30 and the mold main body 41 of the lower mold 40.

Here, as shown in FIG. 7, the substantially semicircular curling groove 32a of the elevating body 32 of the upper die 30 and the curling groove 42a of the substantially semicircular elevating body 42 of the lower die 40 coincide with each other in the vertical direction, whereby the cross section is omitted. A circular curling space is formed. The radius of curvature r1 of the curling groove 32a is smaller than the radius of curvature r2 of the curling groove 42a. , The position shifts on the side close to 41, so that a protruding step portion 32b is formed on the side close to the 41. The step portion 32b has a step w of a predetermined size.

Next, as shown in FIG. 6B, the elevating bodies 32 and 42 of the upper mold 30 and the lower mold 40 are integrally lowered with respect to the mold main bodies 31, 41 and the outer frame bodies 33 and 43.
The metal foils f1 and f2 are cut to a predetermined size at the boundary between the elevating body 32, 42 and the outer frame bodies 33, 43, and the outer edge thereof is downward from the boundary between the mold main bodies 31, 41 and the elevating body 32, 42. It is bent to form a bent portion.
The length of the bent portion is the winding length of the outer edge winding portion 12 and the inner edge winding portion 22, and the end edge of the bent portion is introduced into the curling space.

From this state, as shown in FIG. 6C, when the elevating bodies 32 and 42 are raised until they return to the initial positions (positions at the same height as the mold bodies 31 and 41), the bent portions of the metal foils f1 and f2 are bent. Is wound up along the inner peripheral surfaces of the curling grooves 32a and 42a, and is formed at the same time with the outer edge winding portion 12 and the inner edge winding portion 22 overlapping.
At this time, since the step portion 32b exists, the winding ends E1 and E2 are forcibly wound inward rather than the winding start ends S1 and S2 of the inner and outer edge winding portions 12 and 22. , A gap is naturally formed between the outer peripheral surface of the outer edge winding portion 12 of the first panel 10 and the winding start end S2 of the second panel 20.

Here, the step w due to the step portion 32b is not particularly limited, but is preferably set to 0.3 mm ≦ w ≦ 1.1 mm or less, and more preferably 0.5 mm ≦ w ≦ 0.9 mm or less.
Even if it is expected that the springback inside the edge winding portion derived from the metal foils f1 and f2 that are the step materials is about 0.1 mm, there is a sufficient gap so that the above 0.2 mm ≦ d ≦ 1.0 mm is satisfied. The panel composite in which the above is formed can be stably manufactured and the gap management can be easily performed.

In the figure, only the portion where the metal foils f1 and f2 overlap is shown, but there is a portion where the metal foils f1 and f2 do not overlap and are individually press-molded.
Since the winding diameter of the edge winding portion is limited to the diameters of the curling grooves 32a and 42a, the winding diameter of the inner edge winding portion 22 at the portion overlapping with the outer edge winding portion 12 is larger than the winding diameter at the portion not overlapping with the outer edge winding portion 12. Is smaller by the amount corresponding to the thickness of the metal foil f1. Therefore, in the state where the exhaust port cover 1 is molded, a step is formed at the boundary between the portion exposed to the outside of the inner edge winding portion 22 and the portion hidden in the outer edge winding portion 12.
In the embodiment, since the thickness of the metal foil f1 is reduced, the step of the inner edge winding portion 22 is also reduced, and when the first panel 10 and the second panel 20 are slid comprehensively, the outer edge winding portion 12 is the inner edge. The force required to get over the step of the winding portion 22 is reduced.

The embodiments disclosed this time are exemplary in all respects and are not restrictive. The scope of the present invention is indicated by the scope of claims and includes all modifications and modifications within the scope of claims and in the sense equivalent thereto.

Although the exhaust port cover of the embodiment is composed of only the first and second panels, the configuration of the exhaust port cover is not limited to this. For example, it may be an exhaust port cover including not only the first and second panels but also a third panel. Further, the shape of the exhaust port cover is not limited to the embodiment, and may be a flat plate shape that is not curved.

Further, in the embodiment, the exhaust port cover is given as an example of the panel complex, but the use of the panel complex is not limited to this, and for example, an oil-repellent panel used to surround three sides of the kitchen range may be used. .. In the case of an oil shield panel, the back panel may be composed of the first and second panels so that the frontage dimension of the oil shield panel can be adjusted, and the left and right panels are composed of the first and second panels, respectively. As a result, the depth dimension of the oil shield panel may be adjustable. In addition, a filter for a range hood with a metal leaf frame that is attached to a range hood and has an oil stain prevention filter on the metal leaf frame and a slide mechanism for the frame for size adjustment, and a gap cover for the range. And so on.

In the embodiment, the exhaust port cover is formed from aluminum foil, but the exhaust port cover may be formed from a metal foil other than aluminum foil such as copper foil or iron foil.

1 Exhaust port cover of the embodiment 10 First panel 11 Panel body 11a Rib 12 Outer edge winding part 20 Second panel 21 Panel body 21a Rib 22 Inner edge winding part 30 Upper type 31 type body 32 Elevating body 32a Curling groove 32b Step portion 33 Outside Frame body 40 Lower type 41 type main body 42 Elevating body 42a Curling groove 43 Outer frame body 50 Conventional upper type 51 type main body 52 Elevating body 52a Curling groove 53 Outer frame body 60 Conventional lower type 61 type main body 62 Elevating body 62a Curling groove 63 Outer frame K System kitchen I IH Cooker D Exhaust port S1 First panel winding end E1 First panel winding end S2 Second panel winding start end E2 Second panel winding end t1 First panel thickness t2 No. 2 Panel thickness d Distance from the winding start end of the inner edge winding part to the outer peripheral surface of the outer edge winding part f1 Metal foil for the first panel f2 Metal foil for the second panel f3 Conventional metal foil for the first panel f4 Conventional Metal foil for the second panel r1 Curling radius of the upper curling groove r2 Curling radius of the lower curling groove w Step in the step

Claims (5)

A first panel molded from metal leaf, having a panel body and an outer edge winding portion formed by curling the outer peripheral portion of the panel body.
It comprises a panel body and a second panel molded from metal leaf, which is formed by curling the outer peripheral portion of the panel body and has an inner edge winding portion inserted into the outer edge winding portion of the first panel. ,
The first panel and the second panel are slidable along the length direction of the outer edge winding portion and the inner edge winding portion.
By simultaneously molding the metal foil for the first panel and the metal foil for the second panel so that the outer edge winding portion is on the outside and the inner edge winding portion is on the inside. A step is formed between the portion inserted in the outer edge winding portion and the portion not inserted in the inner edge winding portion.
The thickness of the metal foil of the first panel is t1, and the thickness is t1.
When the thickness of the metal foil of the second panel is t2,
A panel complex in which t1 <t2 holds. The thickness of the metal foil of the first panel is t1, and the thickness is t1.
When the thickness of the metal foil of the second panel is t2,
The panel complex according to claim 1, wherein 0.7t2 ≦ t1 ≦ 0.95t2 is satisfied. The panel composite according to claim 2, wherein the thickness of the metal foil of the first panel is 50 to 200 μm. The panel complex according to any one of claims 1 to 3, which is an exhaust port cover for a kitchen microwave oven. The panel composite according to any one of claims 1 to 4, wherein the metal foil is an aluminum foil.

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