JPH0875207A - Formed body of metallic foil - Google Patents

Abstract

PURPOSE: To increase safety and reliability as a stopper, in the formed body of a metallic foil for engaging the rim windings of split bodies mutually to engage the split bodies slidably to each other. CONSTITUTION: The amount of winding of the rim winding part at the end part 19 of a split body 5 is larger than the amount of winding of another rim winding part of a main body 23. On the other hand, the length of the rim winding part at the end 25 of a split body 3 is longer compared with another main body part 27 while the rim winding work of the rim winding part is opened. Under this condition, the rim winding 13c of the split body 5 is inserted into the rim winding 7c of the split body 3 and, thereafter, the end part 25 of the split body 3 is bent so as to be bent along the rim winding 13c of the split body 5 to complete the rim winding 7c as a rim winding. According to this method, the split body 3 and the split body 5 are engaged with each other while the rim winding at the end part 19 of the split body 5 and the rim winding at the end part 25 of the split body 3 function so as to preclude the releasing of the engagement as a stopper to each other.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a metal foil molded body,
In particular, it relates to a metal foil molded body formed by forming an aluminum foil such as a range hood cover.

[0002]

2. Description of the Prior Art In Japanese Utility Model Publication No. 3-42916,
Disclosed is a metal foil molded body that is provided with curling portions formed by curling edges and is provided in each of the divided bodies, and the slidably engaged portions are inserted by inserting the curling portions into each other.

In Japanese Utility Model Laid-Open No. 6-35842, the fitting groove formed on the edge of one of the divided bodies is overlapped with the edge of the other divided body, and the divided bodies are engaged with each other in a stretchable manner. A ventilator filter cover is disclosed.

[0004]

In the conventional metal foil molded body or the like as described above, the divided bodies slidably engage with each other, but the functions as stoppers when the divided bodies are extended are not sufficient. Absent.

That is, FIG. 3 of Jitsukaihei 3-42916.
Therefore, in the structure of the metal foil molded body of FIG. 8, since it is a molded body, its strength is weak and a reliable effect as a stopper cannot be obtained. Also,
FIG. 9 shows a stopper using the edge winding portion, but there is a risk of cutting hands because the cut surface of the metal foil is exposed to the outside of the product. Further, at the time of molding, the edge winding portions of the divided body are overlapped and processed at the same time to form a stopper portion, and then the edge winding portion is slid to hit the stoppers to form a stopper. Therefore, there is a drawback that the stopper 27b is buried under the stopper 28a and sometimes comes off.

Further, in the filter cover of Japanese Utility Model Laid-Open No. 6-35842, the tongue for the stopper is exposed to the outside of the product and there is a risk of cutting hands, and the metal foil cross section of the fitting groove is exposed to the outside. There is also a risk of cutting hands because it does.

The present invention has been made to solve the above-mentioned problems, and is used as a stopper in a metal foil molded body in which the edge windings of the divided bodies are engaged with each other so that the divided bodies are slidably engaged with each other. It is an object of the present invention to provide a metal foil molded body with improved safety and reliability.

[0008]

The metal foil molded body according to the present invention is divided into a plurality of divided bodies by a line that crosses an edge winding portion formed by curling the edge, and one edge of the divided body is formed. By inserting the other edge winding part of the divided body into the winding part,
In the metal foil molded body in which the respective divided bodies are slidably engaged with each other, the curling amount of curling at the engaging end of each curving portion is the curling amount of curling other than the end. It is characterized by being larger.

[0009]

According to the present invention, the winding amount of each of the edge winding portions of the divided body, which is the edge portion on the engagement side, is made larger than the winding amount of the other portion, so that the edge winding end is increased. The parts function as stoppers.

[0010]

1 is a perspective view showing the structure of a filter cover according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state in which the filter cover of FIG. 1 is slid so as to reduce its overall length. 3 is a view of the filter cover of FIG. 1 seen from the back side.

Referring to these drawings, the range hood cover 1 is composed of a divided body 3 and a divided body 5. Split body 3
Is formed by molding an aluminum foil sheet, and a filter 9 made of non-woven fabric or the like is adhered to the opening portion at the center thereof. Further, both side edges of the divided body 3 and side edges on the side opposite to the side engaging with the divided body 5 are curled.
a to 7c are formed. In addition, the edge winding 7b of the divided body 3
An attachment 11 for attaching the range hood cover to the side wall of the range hood or the like is attached to the portion.

On the other hand, the divided body 5 is also formed by molding an aluminum foil sheet, and a filter 15 is similarly attached to the central opening. Further, like the divided body 3, edge windings 13a to 13c are formed on the side edges of the divided body 5. Further, a fitting 17 is attached to the curb 13b.

In the range hood cover 1, the edge windings 7a and 7c of the divided body 3 and the edge windings 13a and 13c of the divided body 5 are slidably engaged with each other, and the state shown in FIG. As shown in the state, the entire length of the range hood cover 1 can be arbitrarily adjusted according to the width of the target range hood to which the range hood cover 1 is attached.

FIG. 4 is an enlarged perspective view corresponding to the portion "X" in FIG. 1, and is a perspective view showing a state before the divided bodies 3 and 5 are engaged with each other, and FIGS. Is V- in FIG.
It is an end view corresponding to each of a V line, a VI-VI line, a VII-VII line, and a VIII-VIII line.

With reference to these drawings, the curling 13c formed on the side wall of the divided body 5 is composed of curving of each of the end portion 19, the intermediate portion 21 and the main body portion 23. As shown in FIG. 6 which is an end view thereof, the winding amount of the edge winding of the end portion 19 is larger than the winding amount shown in FIG. 5 corresponding to the edge winding portion of the main body portion 23. It is getting bigger. In addition, the edge winding of the intermediate portion 21 is determined based on the winding amount of the edge winding of the main body portion 23 from the end portion 1
It is formed so that the winding amount decreases in the direction of 9.

On the other hand, the edge winding 7 formed on the side wall of the divided body 3
c is composed of an end portion 25 and a main body portion 27. End 2
As shown in FIG. 7 which is an end view of the edge winding of No. 5, the edge winding has not been completely processed and is in a spread state. Further, the edge winding of the main body portion 27 is formed so as to be completely wound inward from the end portion 25, as shown in FIG. 8 which is an end view thereof. In this state, the edge winding 7c of the divided body 3 is processed so that its curvature is larger than that of the edge winding 13c of the divided body 5 in both the end portion 25 and the main body portion 27.

FIG. 9 corresponds to the perspective view of FIG. 4, and is a perspective view showing the shape of the aluminum foil sheet before the edge winding of each of the divided bodies 3 and 5 and the like.

Referring to the drawing, each portion of the divided bodies 3 and 5 indicated by hatching indicates a portion of each of the edge windings 7c and 13c to which the edge winding is applied. In the split body 3, the edge-wound portion of the end portion 25 is formed in a tab shape. Further, in the divided body 5, a portion of the end portion 19 to be curled is formed in a tab shape, and a portion of the intermediate portion 21 to be curled is an edge of the main body portion 23 to be curled. It has a shape that is slightly cut away from the winding part.

FIG. 10 is a cross-sectional view of the main part of the curb forming device when curving the end portion 19 and the main body portion 23 shown in FIGS. 5 and 6, respectively.

Referring to (1) of FIG. 10, the molding apparatus for forming the curling of the main body portion 23 includes a first outer frame member 33.
And a second outer frame member 35 and a mold member 39, and the outer frame members 33 and 35 form a curl groove 37. A material cutting blade 40 is installed outside the outer frame members 33 and 35. The aluminum sheet corresponding to the main body portion 23 is edge-rolled along the shape of the curl groove 37 as the first outer frame member 33 and the second outer frame member 35 move up relative to the die member 39.

On the other hand, (2) of FIG. 10 shows a sectional structure of a molding apparatus for carrying out curling of the end portion 19.
The second outer frame member 35 and the mold member 39 have the same cross-sectional structure as that of the molding apparatus shown in FIG. 10 (1) for performing the curling of the main body. However, the shape of the groove portion 42 of the first outer frame member 41 is different from that of the first outer frame member 33 shown in (1) of FIG. Therefore, the shape of the curl groove 38 formed by the outer frame members 41 and 35 is also different.

In FIG. 10 (2), the aluminum sheet for forming the end portion 19 as the outer frame members 41 and 35 are raised with respect to the mold member 39 is the second outer frame member 3.
5, the surface of the groove portion 44 and the groove portion 42 of the first outer frame member 41.
Edge curling processing will be performed along. Therefore, as shown in FIG. 6, the edge winding of the end portion 19 is subjected to edge winding in a state in which the edge winding is more closely attached to the side wall 20 than the edge winding of the main body portion 23 shown in FIG. Will be.

FIG. 11 is a perspective view showing a state in which the edge winding 13c of the divided body 5 is inserted into the edge winding 7c of the divided body 3 from the state of FIG. 4, and FIG. 12 is further divided from the state of FIG. It is the perspective view which showed the state which inserted the curb 13c of the body 5 in the curb 7c of the division body 3. FIG.

As is apparent from these figures, the divided body 3
As shown in the end view of FIG. 7, the edge winding of the end portion 25 of FIG. 7 is held in the state where the edge winding processing is open, and its curvature is processed to be larger than the curvature of the edge winding 13c of the split body 5. Therefore, it is easy to insert the edge winding 13c having the end portion 19 as a head into the edge winding 7c of the divided body 3.

FIG. 13 is a view showing a state where the end portion 25 and the main body portion 27 are bent from the state shown in FIG. 12 so as to be along the outer surface of the edge winding 13c of the split body 5. 14A is an end view of the line AA of FIG. 13, FIG. 14B is an end view of the line BB of FIG. 13, and FIG. It is an end view of a C-C line.

As shown in FIG. 14A, the edge winding of the end portion 25 of the divided body 3 is longer than the edge winding portion of the main body portion 27, so that the edge winding of the main body portion 23 of the divided body 5 is increased. It is in a state that it has entered considerably inside along.

As shown in FIG. 14 (B), the edge windings of the main body 27 of the divided body 3 and the edge winding of the main body 23 of the divided body 5 are much different in the positions of the end portions. There is no state.

As shown in FIG. 14 (C), the edge winding of the end portion 19 of the divided body 5 is considerably deeper than the edge winding of the main body portion 27 of the divided body 3.

The divided body 3 and the divided body 5 are thus formed as shown in FIG.
The curls are engaged with each other in the state as shown in 4,
Allows smooth sliding movement.

In FIG. 15, the split body 3 and the split body 5 are slid in the direction shown by the arrow from the state of FIG. 3, and the edge winding of the end portion 25 of the split body 3 and the end portion of the split body 5 are performed. 19 is a perspective view showing a state in which the edge winding of 19 functions as a stopper, and FIG. 16 is a cross-sectional view taken along the line D-D of FIG. 15.

With reference to these figures, the end portion 2 of the divided body 3
The edge winding of the intermediate portion 21 of the divided body 5 is located corresponding to the edge winding of No. 5. Since the curling amount of the edge winding of the intermediate portion 21 is small, the curl at the tip of the end portion 25 of the divided body 3 is as illustrated. On the other hand, the winding amount of the end portion 19 of the divided body 5 is larger than that of the intermediate portion 21 as shown in the figure. Therefore, the divided body 5
The edge winding of the end portion 19 and the edge winding of the end portion 25 of the divided body 3 collide with each other at their end faces, and function as a stopper that prevents further separation of the divided body 3 and the divided body 5. To do. Moreover, since the stopper does not appear on the outer surface at all and is incorporated in the curb, the safety of the curb processing is not impaired.

FIG. 17 is a perspective view showing the structure of the fixture 17 shown in the "Y" portion of FIG. Referring to the drawing, the fixture 17 includes a yoke 43 having a U-shaped cross section, a magnet 45 attached inside the yoke 43, and a bent portion 47 integrally connected to the yoke 43. It It should be noted that the bent portion 47 is not bent before the attachment 17 is attached to the split body 5, and an opening 49 is formed at a portion corresponding to the bending position.

When the attachment 17 is attached to the divided body 5, the bent portion 47 is passed through the opening 51 formed in the vicinity of the edge winding 13b of the divided body 5, and the yoke 43 is formed at the opening 49.
Bend in the direction of the back of. In this way, the fixture 17
Is rotatably attached around the edge winding 13b of the split body 5. The opening 49 is provided in the bent portion 47 in order to facilitate the bending process of the bent portion 47 at the time of attachment.

In the above embodiment, the winding amount of the end portion is larger than that of the portion other than the end portion with respect to the curling of both side edges of the divided body, but it is not the curling of both side edges. Even if the winding amount of the end portion is increased only for the curling of one side edge, the function as the stopper of the entire divided body can be exhibited.

Further, in the above embodiment, the range hood cover is taken as an example of the metal foil molded body, but the present invention is not limited to this, and the grill exhaust port cover of the gas range, the gas range juice saucer cover, and the gas range cover are installed upright. It goes without saying that the present invention can be similarly applied to a metal foil molded body such as an oil splattering prevention panel to be used thereafter.

Further, in the above-mentioned embodiment, the intermediate portion 21 of the divided body 5 has a smaller curling amount of curling than that of the main body portion 23, but this is for further improving the reliability as a stopper. However, it is not always necessary.

From the above embodiments, the following protections of the invention can be considered. 1. A plurality of divided bodies is formed by a line that crosses an edge winding portion formed by curling an edge, and one edge winding portion of the division body is inserted into one edge winding portion of the division body. Thus, in the metal foil molded body in which the respective divided bodies are slidably engaged with each other, the winding amount of the edge winding of the end portion on the engaging side of each of the edge winding portions is different from that of the end portions. A metal foil molded body, characterized in that it is larger than the winding amount of the edge winding of the part. 2. The curling amount of the curling of a portion of the other one curving portion adjacent to the end portion of the curving member is greater than the curling amount of a portion other than the end portion and excluding the neighboring portion. A small metal foil molded article according to item 1.

(Purpose or effect) In addition to the effect of item 1, the function as a stopper by the end portion of the other edge winding portion of the split body is further improved. 3. Item 3. The metal foil molded body according to Item 1 or 2, wherein the winding amount of the edge winding of a portion other than the end portion of one edge winding portion of the divided body is constant.

(Purpose or effect) In addition to the effect of item 1 or 2, the sliding motion of each of the divided bodies becomes smoother.

[0040]

As described above, according to the present invention, since the winding amount of each of the edge winding portions of the divided body at the end portion on the engagement side is larger than the winding amount of the other portions, When each of the split bodies is slid in the disengagement direction, the end of each curled portion functions as a stopper that does not appear on the outer surface, and reliably prevents disengagement.

[Brief description of drawings]

FIG. 1 is a perspective view showing the outer shape of a range hood cover according to an embodiment of the present invention.

FIG. 2 is an external perspective view of a case where the split body forming the range hood cover of FIG. 1 is slid to reduce the overall length.

FIG. 3 is a view of the range hood cover of FIG. 1 viewed from the back side.

FIG. 4 is a perspective view showing a shape of the “X” portion of FIG. 1 before the divided bodies are engaged with each other.

5 is an end view of the VV line of FIG.

FIG. 6 is an end view of the VI-VI line of FIG.

FIG. 7 is an end view of the VII-VII line of FIG.

FIG. 8 is an end view of the VIII-VIII line of FIG.

FIG. 9 is a perspective view corresponding to FIG. 4, showing the shape of the aluminum foil sheet before forming.

10 is a cross-sectional view of a main part of a curb forming device for forming a curb shown in the end views of FIGS. 5 and 6. FIG.

11 is a view showing a state in which the edge winding of the divided body 5 is divided into the divided body 3 from the state of FIG.
It is a perspective view which shows the state inserted in the curb.

12 is a perspective view showing a state in which the edge winding of the divided body 5 is further inserted into the edge winding of the divided body 3 from the state shown in FIG.

13 is a perspective view showing a state in which the edge winding of the divided body 3 is bent along the edge winding of the divided body 5 from the state of FIG.

FIG. 14 is an end view of each of the AA line, the BB line, and the CC line in FIG.

FIG. 15 is a diagram showing a state in which the divided bodies 3 and 5 are slid in the direction of the arrow from the engaged state of FIG.

16 is a cross-sectional view taken along line DD of FIG.

FIG. 17 is a perspective view showing the structure of the fixture shown in the “Y” part of FIG. 1.

[Explanation of symbols]

1 Range Hood Cover 3 Divided Body 5 Divided Body 7a, 7c Edge Wound 13a, 13c Edge Wound 19 End 23 Main Body 25 End 27 Main Body In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. An edge winding portion formed by curling an end edge is divided into a plurality of division bodies, and one edge winding portion of the division body is provided with another edge of the division body. In the metal foil molded body in which each of the divided bodies is slidably engaged with each other by inserting the winding portion, the winding amount of the edge winding at the engaging side end of each of the edge winding portions is
A metal foil molded body, characterized in that it is larger than the curling amount of curling of the portion other than the end portion.