JPH0454607Y2 - - Google Patents
Info
- Publication number
- JPH0454607Y2 JPH0454607Y2 JP1986174667U JP17466786U JPH0454607Y2 JP H0454607 Y2 JPH0454607 Y2 JP H0454607Y2 JP 1986174667 U JP1986174667 U JP 1986174667U JP 17466786 U JP17466786 U JP 17466786U JP H0454607 Y2 JPH0454607 Y2 JP H0454607Y2
- Authority
- JP
- Japan
- Prior art keywords
- optical disk
- hub
- hub body
- disc
- center
- 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
- 230000003287 optical effect Effects 0.000 claims description 32
- 239000000758 substrate Substances 0.000 claims description 14
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 230000005291 magnetic effect Effects 0.000 claims description 7
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 6
- 125000006850 spacer group Chemical group 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002902 ferrimagnetic material Substances 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Landscapes
- Optical Record Carriers And Manufacture Thereof (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、光デイスク用ハブに関する。更に詳
しくは二枚の光デイスク基板を貼り合わせる時に
同時にハブの取り付けも行えるようにした新規な
光デイスク用ハブに関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a hub for an optical disk. More specifically, the present invention relates to a novel optical disk hub that allows the hub to be attached at the same time when two optical disk substrates are bonded together.
従来、一般的な光デイスクの製造は先ず二枚の
光デイスク基板を中間にスペーサーを挟んで貼り
合わせ、次いで第３図に示すようにデイスクセン
ター穴にはめ込まれ凸部をもつた一対のハブを基
板の上下面に嵌合し、両ハブの上記凸部の接合面
をネジ、接着剤等の手段により固定していた。し
かし乍ら、このような従来方法によると(1)二枚の
基板を貼り合わせた後、更にハブ取り付け工程が
必要になること及びハブ接着ミスなどにより、製
品歩留りが低下することが多い。(2)ハブの芯出し
装置が必要となり製品の生産性が低下するなどの
問題点があり、全体として製品のコスト高につな
がる。
Conventionally, in manufacturing a typical optical disk, first two optical disk substrates are pasted together with a spacer in between, and then a pair of hubs with a convex portion are fitted into the center hole of the disk as shown in Figure 3. It was fitted onto the upper and lower surfaces of the substrate, and the joint surfaces of the convex portions of both hubs were fixed by screws, adhesive, or other means. However, according to such conventional methods, (1) after the two substrates are bonded together, an additional hub attachment process is required, and the product yield is often reduced due to errors in hub attachment. (2) There are problems such as a hub centering device is required, which reduces product productivity, leading to an overall increase in product costs.
本考案者らは上記の問題点を解決すべく光デイ
スク用ハブの改良について鋭意検討の結果、光デ
イスクのセンター穴を利用して基板の貼り合わせ
時にハブの取り付けが可能で特別なハブの接着が
不要であり且つ芯出し精度にも優れたハブを考案
した。
In order to solve the above problems, the inventors of the present invention have diligently studied ways to improve hubs for optical disks. As a result, the inventors have found that the center hole of the optical disk can be used to attach the hub when bonding the boards together, and a special hub adhesive has been developed. We have devised a hub that is unnecessary and has excellent centering accuracy.
即ち本考案は、上下二枚の光デイスク基板の貼
り合わせ時に、光デイスク基板の中心部に取り付
けられるマグネツトクランプ用ハブであつて、一
部に緩衝接着部を設けたマグネツト吸着部を有す
る円板状ハブ本体と円板状ハブ本体に付設され先
端へ向けても先細テーパー状に形成された中心に
軸孔を有する嵌合部、から構成されるハブの一対
よりなる光デイスク用ハブである。 That is, the present invention is a hub for a magnetic clamp that is attached to the center of an optical disk substrate when two upper and lower optical disk substrates are bonded together, and is a circular hub having a magnetic suction part with a buffer adhesive part provided in a part. This is a hub for an optical disk consisting of a pair of hubs consisting of a plate-shaped hub body and a fitting part attached to the disc-shaped hub body and tapered toward the tip and having an axial hole in the center. .
以下添付図面により本考案の光デイスク用ハブ
を具体的に説明する。第４図及び第５図は、本考
案の光デイスク用ハブの縦断面図を示す。本考案
の光デイスク用ハブは中心に心棒の通る軸孔７を
有する円板状ハブ本体５と嵌合部（芯出し用テー
パー部）４からなる。円板状ハブ本体５はマグネ
ツト吸着部３と緩衝接着部６を有する。 The optical disk hub of the present invention will be explained in detail below with reference to the accompanying drawings. 4 and 5 show longitudinal sectional views of the optical disk hub of the present invention. The optical disk hub of the present invention consists of a disc-shaped hub body 5 having a shaft hole 7 in the center through which the mandrel passes, and a fitting part (tapered part for centering) 4. The disk-shaped hub body 5 has a magnetic adsorption section 3 and a buffer adhesive section 6.
第１図は本考案の光デイスク用ハブを貼り合わ
せたスペーサー２（光デイスク基材と同一系統材
質がよい）を挟んでエアサンドイツチ構成の光デ
イスク基板１，１′のセンター穴に（軸孔７）嵌
合した使用状態図である。芯出し用テーパー部４
が光デイスク基板側壁８に接触することにより光
デイスク芯出しを行う。この際、マグネツト吸着
部３と芯出し用テーパー部４を、緩衝接着部６の
一部ａにより溶剤あるいは接着剤による接着また
は超音波による溶剤で光デイスク基板１に固定す
る。また、ハブ本体５の二つの部分９，９′は光
デイスク基板１のセンター穴（軸孔７）に嵌合さ
れるものであるが、その先端へ向けて先細テーパ
ー状を有する。即ち、それらの上下の嵌合部の先
端平面部１０，１０′の径Ｘ，Ｙは光デイスク基
板のセンター穴（軸孔７）の内径と同一の径又は
少し大きめの径を有する嵌合部の底縁外形X′，
Y′よりやや小さくなるようにしてある。また更
に本考案の別の実施例を第２図に示す。この場合
は、ハブ本体５の上面を全面的に緩衝接着部６で
覆い且つハブ本体５の一部に緩衝接着部６が嵌合
されて光デイスク基板１に密着させる構成となつ
ている。ここで緩衝接着部としてはウレタン、エ
ポキシ、シリコーン、ナイロンなどの合成樹脂が
挙げられる。また、ハブの材質は鉄、ステンレ
ス、ニツケル等の強磁体または、フエライト等の
磁化したフエリ磁性体またはそれらを含有するプ
ラスチツク等の磁石につくものなら何れでもよ
い。 Fig. 1 shows a spacer 2 (preferably made of the same material as the optical disk base material) on which the optical disk hub of the present invention is pasted, and a spacer 2 (preferably made of the same material as the optical disk base material) inserted into the center hole of optical disk substrates 1 and 1' with an air sandwich structure. This is a diagram of the shaft hole 7) in use when fitted. Tapered part 4 for centering
The centering of the optical disk is performed by contacting the side wall 8 of the optical disk substrate. At this time, the magnetic adsorption section 3 and the centering taper section 4 are fixed to the optical disk substrate 1 by means of a part a of the buffer adhesive section 6 using a solvent or adhesive, or a solvent using ultrasonic waves. Further, the two parts 9 and 9' of the hub body 5, which are fitted into the center hole (shaft hole 7) of the optical disk substrate 1, have a tapered shape toward their tips. That is, the diameters X and Y of the flat end portions 10 and 10' of the upper and lower fitting portions are the same as or slightly larger than the inner diameter of the center hole (shaft hole 7) of the optical disk substrate. Bottom edge outline X′,
It is set to be slightly smaller than Y'. Yet another embodiment of the present invention is shown in FIG. In this case, the upper surface of the hub body 5 is entirely covered with a buffer adhesive part 6, and the buffer adhesive part 6 is fitted into a part of the hub body 5 to bring it into close contact with the optical disk substrate 1. Here, examples of the buffer adhesive include synthetic resins such as urethane, epoxy, silicone, and nylon. The material of the hub may be any material that can be attached to a magnet, such as a ferromagnetic material such as iron, stainless steel, or nickel, or a magnetized ferrimagnetic material such as ferrite, or a plastic containing the same.
従来のネジ等を利用するメカクランプハブは基
板のセンター穴（軸孔７）の径としてセンター穴
（軸孔７）エツジの表面側エツジｂを基準として
いた（第３図）。ここで該表面側エツジｂはバリ
１１等が発生していることが多く従来のハブでは
芯出しの際芯精度が狂うことが多かつた。これに
対して本考案のハブは第１図の如く内面側エツジ
ｃを基準にとり且つハブ本体を先端に向けて先細
テーパー状に形成しハブ本体の側面部に傾斜を設
け更に緩衝接着部がハブ本体と光デイスク基板を
しつかり密着しているため芯出しが容易であり、
且つ芯出しの際精度が狂うことなく、上記従来品
より５〜10μ程度芯精度を向上させることができ
る。
In the conventional mechanical clamp hub using screws, etc., the diameter of the center hole (shaft hole 7) of the board is based on the surface side edge b of the edge of the center hole (shaft hole 7) (FIG. 3). Here, the front edge b often has burrs 11, etc., and in conventional hubs, the centering accuracy often goes out of order. In contrast, in the hub of the present invention, the inner edge c is taken as a reference as shown in Fig. 1, the hub body is formed into a tapered shape toward the tip, and the side surface of the hub body is sloped. Centering is easy because the main body and optical disk board are in close contact with each other.
In addition, the centering precision can be improved by about 5 to 10 microns compared to the conventional product without losing precision during centering.
第１図、第２図は本考案の光デイスク用ハブの
実際の使用状態を示す縦断面図であり、第３図は
従来のハブを示す縦断面図である。また、第４図
と第５図は本考案の光デイスク用ハブの縦断面図
を示す。
符号の説明、１，１′……光デイスク基板、２，
２′……スペーサー、３……マグネツト吸着部、
４……芯出し用テーパー部、５，５′……ハブ本
体、６……緩衝接着部、７……軸孔（光デイスク
センター穴）、８……光デイスク基板側壁、９，
９′……ハブの一部、１０，１０′……ハブ先端平
面部、１１……バリ、ａ……緩衝接着部の一部、
ｂ……デイスク基板のセンター孔エツジ表面側、
ｃ……ハブ内面側エツジ。
FIGS. 1 and 2 are longitudinal sectional views showing the optical disk hub of the present invention in actual use, and FIG. 3 is a longitudinal sectional view showing a conventional hub. Further, FIGS. 4 and 5 show longitudinal sectional views of the optical disk hub of the present invention. Explanation of symbols, 1, 1'... Optical disk substrate, 2,
2'... Spacer, 3... Magnetic adsorption part,
4... Centering taper part, 5, 5'... Hub body, 6... Buffer adhesive part, 7... Shaft hole (optical disk center hole), 8... Optical disk board side wall, 9,
9'... Part of the hub, 10, 10'... Hub tip flat part, 11... Burr, a... Part of the buffer adhesive part,
b...The center hole edge surface side of the disk board,
c...Hub inner edge.
Claims (1)
光デイスク基板の中心部に取り付けられるマグネ
ツトクランプ用ハブであつて、一部に緩衝接着部
を設けたマグネツト吸着部を有する円板状ハブ本
体と、円板状ハブ本体に付設され先端へ向けても
先細テーパー状に形成された中心に軸孔を有する
嵌合部、から構成されるハブの一対よりなる光デ
イスク用ハブ。 When bonding the upper and lower optical disk substrates together,
This is a hub for a magnetic clamp that is attached to the center of an optical disk board, and includes a disc-shaped hub body that has a magnetic adsorption part with a buffer adhesive part, and a disc-shaped hub body that is attached to the disc-shaped hub body and points toward the tip. A hub for an optical disk comprising a pair of hubs each having a fitting part formed in a tapered shape and having an axial hole in the center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986174667U JPH0454607Y2 (en) | 1986-11-13 | 1986-11-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1986174667U JPH0454607Y2 (en) | 1986-11-13 | 1986-11-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6381372U JPS6381372U (en) | 1988-05-28 |
| JPH0454607Y2 true JPH0454607Y2 (en) | 1992-12-22 |
Family
ID=31113267
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1986174667U Expired JPH0454607Y2 (en) | 1986-11-13 | 1986-11-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0454607Y2 (en) |
-
1986
- 1986-11-13 JP JP1986174667U patent/JPH0454607Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6381372U (en) | 1988-05-28 |
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