JPH0238242Y2 - - Google Patents
Info
- Publication number
- JPH0238242Y2 JPH0238242Y2 JP1980190587U JP19058780U JPH0238242Y2 JP H0238242 Y2 JPH0238242 Y2 JP H0238242Y2 JP 1980190587 U JP1980190587 U JP 1980190587U JP 19058780 U JP19058780 U JP 19058780U JP H0238242 Y2 JPH0238242 Y2 JP H0238242Y2
- Authority
- JP
- Japan
- Prior art keywords
- mirror
- bent
- composite material
- bending
- notch groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000002131 composite material Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 10
- 238000007747 plating Methods 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000003801 milling Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
Description
【考案の詳細な説明】
本考案は曲げ加工された鏡に関する。一般に用
いられている鏡はガラス製であり、曲げ加工は出
来ない。本考案は合成樹脂板の両面に金属板を接
合して成る複合材の表面にクロムメツキを施して
製作した鏡を、小さな曲率で曲げ加工してなる鏡
に関する。クロムメツキは硬くて伸び性がないの
で、複合材の表面にクロムメツキを施して製作し
た鏡をそのまま小さな曲率で曲げると、メツキ層
が割れてしまう。本考案では鏡の裏側に切欠溝を
設け、この部分を内側にして曲げ加工を施す。こ
れにより曲げ部の厚さが薄くなり、従つて曲げ加
工に際してメツキ層の伸びが小さくなり、メツキ
層の割れが防止される。切欠溝の幅や深さは複合
材の厚さおよび曲げの曲率に応じて決定すればよ
いが、厚さ２〜３mm程度の複合材であれば、溝幅
４〜20mmで、切欠溝の残存厚さが0.3〜1.0mm程度
となるようにすればよい。切欠溝はフライス盤、
ルーター等で容易に切削加工できる。曲げ加工は
折り曲げ機やプレスブレーキを用いて通常の金属
板の曲げ加工と同様にして行なうことができる。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bent mirror. Mirrors commonly used are made of glass and cannot be bent. The present invention relates to a mirror made by bending a mirror with a small curvature by applying chrome plating to the surface of a composite material made by bonding metal plates to both sides of a synthetic resin plate. Chrome plating is hard and has no elasticity, so if a mirror made by applying chrome plating to the surface of a composite material is bent with a small curvature, the plating layer will crack. In this invention, a notch groove is provided on the back side of the mirror, and the bending process is performed with this part on the inside. As a result, the thickness of the bent portion becomes thinner, and therefore, the elongation of the plating layer during bending is reduced, and cracking of the plating layer is prevented. The width and depth of the notch groove can be determined according to the thickness of the composite material and the curvature of the bend, but if the composite material is about 2 to 3 mm thick, the groove width should be 4 to 20 mm, and the remaining notch groove should be determined. The thickness may be approximately 0.3 to 1.0 mm. The notch groove is made by a milling machine,
Can be easily cut using a router, etc. The bending process can be performed using a bending machine or a press brake in the same manner as normal metal plate bending process.
以上の如く、本考案に係る鏡は容易に製作で
き、また曲げ加工部分も他の部分と同一の鏡面を
保持しているので、壁面装飾材等として有用であ
る。 As described above, the mirror according to the present invention can be easily manufactured, and the bent portion maintains the same mirror surface as other portions, so it is useful as a wall decoration material, etc.
次に実施例により本考案を更に具体的に説明す
るが、本考案はその要旨を起えない限り、以下の
実施例に限定されるものではない。 Next, the present invention will be explained in more detail with reference to examples, but the present invention is not limited to the following examples unless the gist thereof is exceeded.
実施例 １
厚さ1.5mmのポリエチレン板２の両面に厚さ
0.25mmのアルミニウム板３，３′を接合した厚さ
２mmの複合材の一方の面３′に、ニツケルメツキ
を行ない、さらにクロムメツキを行なつて鏡１と
した。この鏡面１の裏面３に幅４mm、深さ1.7mm
の切欠溝４をフライス盤で加工し、次いで折り曲
げ機により切欠溝４を内側にして90゜折り曲げ、
鏡面の曲げ半径2.5mmの曲げ加工された鏡を得た。
曲げ部分の鏡面に割れは発生しなかつた。折り曲
げ部の断面を第１図に示す。Example 1 Thickness on both sides of polyethylene plate 2 with a thickness of 1.5 mm
One side 3' of a 2 mm thick composite material to which 0.25 mm aluminum plates 3 and 3' were bonded was nickel plated and then chrome plated to form a mirror 1. The back side 3 of this mirror surface 1 has a width of 4 mm and a depth of 1.7 mm.
The notch groove 4 is machined using a milling machine, and then bent by 90° with the notch groove 4 inside using a bending machine.
A bent mirror with a bending radius of 2.5 mm was obtained.
No cracks occurred on the mirror surface of the bent portion. A cross section of the bent portion is shown in FIG.
実施例 ２
実施例１と同様の複合材にニツケルメツキおよ
びクロムメツキを行なつて得た鏡面１の裏面３
に、幅20mm、深さ１mmの切欠溝４および45゜の逃
げをルーターにより加工した。プレスブレーキを
用いて半径12mmのポンチおよびダイ幅70mmのダイ
で切欠溝４を内側にして曲げ加工を行ない、鏡面
の曲げ半径13mmの曲げ加工された鏡を得た。曲げ
部分の鏡面に割れは発生しなかつた。折り曲げ部
の断面を第２図に示す。Example 2 Back surface 3 of mirror surface 1 obtained by performing nickel plating and chrome plating on the same composite material as in Example 1
A notch groove 4 with a width of 20 mm and a depth of 1 mm and a relief of 45° were machined using a router. Using a press brake, bending was performed using a punch with a radius of 12 mm and a die with a die width of 70 mm, with the notch groove 4 facing inside, to obtain a bent mirror with a bending radius of 13 mm. No cracks occurred on the mirror surface of the bent portion. A cross section of the bent portion is shown in FIG.
第１図は本考案に係る曲げ加工された鏡の１例
の曲げ加工部の断面図である。第２図は本考案に
係る曲げ加工された鏡の他の例の曲げ加工部の断
面図である。
１……鏡面、２……合成樹脂板、３……裏面の
金属板、３′……表面の金属板（鏡面用）、４……
切欠溝。
FIG. 1 is a sectional view of a bent portion of an example of a bent mirror according to the present invention. FIG. 2 is a sectional view of the bent portion of another example of the bent mirror according to the present invention. 1...Mirror surface, 2...Synthetic resin plate, 3...Back metal plate, 3'...Front metal plate (for mirror surface), 4...
Notched groove.
Claims (1)
状複合材の一方の面にクロムメツキを施して鏡面
とし、他方の面に切欠溝を設け、該切欠溝を内側
にして曲げ加工してなる鏡。 A planar composite material made by bonding metal plates to both sides of a synthetic resin plate. One side is chrome-plated to give it a mirror finish, the other side is provided with notched grooves, and the other side is bent with the notched grooves on the inside. mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980190587U JPH0238242Y2 (en) | 1980-12-26 | 1980-12-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1980190587U JPH0238242Y2 (en) | 1980-12-26 | 1980-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57110508U JPS57110508U (en) | 1982-07-08 |
| JPH0238242Y2 true JPH0238242Y2 (en) | 1990-10-16 |
Family
ID=29994985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1980190587U Expired JPH0238242Y2 (en) | 1980-12-26 | 1980-12-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0238242Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006126272A (en) * | 2004-10-26 | 2006-05-18 | Nippon Electric Glass Co Ltd | Optical cap component |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526442A (en) * | 1978-08-14 | 1980-02-25 | Kansai Keiki Kogyo Kk | Water surface gauge monitor unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5160257U (en) * | 1974-11-06 | 1976-05-12 |
-
1980
- 1980-12-26 JP JP1980190587U patent/JPH0238242Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5526442A (en) * | 1978-08-14 | 1980-02-25 | Kansai Keiki Kogyo Kk | Water surface gauge monitor unit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57110508U (en) | 1982-07-08 |
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