JPH0477392B2 - - Google Patents
Info
- Publication number
- JPH0477392B2 JPH0477392B2 JP62007933A JP793387A JPH0477392B2 JP H0477392 B2 JPH0477392 B2 JP H0477392B2 JP 62007933 A JP62007933 A JP 62007933A JP 793387 A JP793387 A JP 793387A JP H0477392 B2 JPH0477392 B2 JP H0477392B2
- Authority
- JP
- Japan
- Prior art keywords
- hub
- adhesive
- substrate
- resin
- optical disk
- 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 - Lifetime
Links
- 239000000853 adhesive Substances 0.000 claims abstract description 68
- 230000001070 adhesive effect Effects 0.000 claims abstract description 68
- 239000000758 substrate Substances 0.000 claims abstract description 48
- 230000003287 optical effect Effects 0.000 claims abstract description 36
- 229920005989 resin Polymers 0.000 claims abstract description 35
- 239000011347 resin Substances 0.000 claims abstract description 35
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 239000006247 magnetic powder Substances 0.000 claims abstract description 3
- 239000004033 plastic Substances 0.000 claims abstract description 3
- 229920003023 plastic Polymers 0.000 claims abstract description 3
- 239000000843 powder Substances 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000000465 moulding Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005266 casting Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229920001651 Cyanoacrylate Polymers 0.000 description 1
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical compound COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- -1 moisture Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
- B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
- B29C65/542—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by injection
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/567—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
- B29C65/568—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits using a tamping or a swaging operation, i.e. at least partially deforming the edge or the rim of a first part to be joined to clamp a second part to be joined using a swaging operation, i.e. totally deforming the edge or the rim of a first part to be joined to clamp a second part to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/45—Joining of substantially the whole surface of the articles
- B29C66/452—Joining of substantially the whole surface of the articles the article having a disc form, e.g. making CDs or DVDs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/61—Joining from or joining on the inside
- B29C66/612—Making circumferential joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/74—Joining plastics material to non-plastics material
- B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/54—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts
- B29C65/544—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive between pre-assembled parts by suction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、光デイスクの取り付け治具及びその
取り付け方法に関するものであり、更に詳しくは
光デイスクをデイスクドライブに装着固定するた
め、デイスクに取り付けたマグネツトクランプ用
ハブ及びその取り付け方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical disk mounting jig and a method for mounting the same. The present invention relates to a hub for a magnetic clamp and a method for attaching the same.
（従来の技術）
従来の光学式情報記録媒体は、媒体の表面から
記録用又は読み出し用の光を投射することによつ
て情報の書き込みや読み出しを行うように構成さ
れているため、デイスク板の片面又は両面に情報
記録用の薄膜を形成し、この薄膜を保護するた
め、２枚の担体デイスク基板を記録膜を内側にし
てスペーサーを介すか、又は介さずに接着されて
なる所謂サンドイツチ構造とし、デイスク担体基
板の外周と内周を封止することによつて、密封構
造として塵あるいは湿気あるいはガス等の外部環
境から保護して、それらの影響による情報の記録
の変化を防止するように構成されている。(Prior Art) Conventional optical information recording media are configured to write or read information by projecting recording or reading light from the surface of the medium. A thin film for information recording is formed on one or both sides, and in order to protect this thin film, a so-called sandwich structure is formed by bonding two carrier disk substrates with the recording film inside with or without a spacer. By sealing the outer periphery and inner periphery of the disk carrier substrate, the disk carrier substrate has a sealed structure that protects it from the external environment such as dust, moisture, gas, etc., and prevents changes in recorded information due to the influence of these elements. has been done.
このようなデイスクをデイスクドライブに装着
固定するための手段として、従来の光デイスクに
は金属からなるマグネツトクランプ用ハブが取り
付けられており、サンドイツチ構造デイスクを挟
み込む形で上下２枚のハブをネジによつて締め付
ける構成となつている。 As a means of attaching and fixing such a disk to a disk drive, conventional optical disks are equipped with a magnetic clamp hub made of metal, and the two upper and lower hubs are screwed together to sandwich the sandwich structure disk. It is configured to be tightened by.
しかし乍ら、上述のような従来の手段はサンド
イツチ構造の上下２枚のデイスク担体基板に対し
て上下２枚の金属製ハブを用いて基板を圧締して
いるので、デイスクのドライブへのセツト時等、
デイスクの温度上昇の際にハブと基板との熱膨張
率の差に起因する応力が基板とハブの界面に発生
し、デイスク基板の複屈折の増加を引き起こして
いた。 However, in the conventional means as described above, two metal hubs (upper and lower) are used to press the two upper and lower disk carrier substrates of a sanderch structure, making it difficult to set the disk in the drive. time, etc.
When the temperature of the disk increases, stress due to the difference in thermal expansion coefficient between the hub and the substrate is generated at the interface between the substrate and the hub, causing an increase in the birefringence of the disk substrate.
この様な複屈折の増大は、記録、再生、検出光
量減少、レーザーへの戻り光量増加を引き起こ
し、信号の記録特性即ちＳ／Ｎ値の低化の原因と
なる。 Such an increase in birefringence causes a decrease in the amount of recording, reproduction, and detection light, and an increase in the amount of light returned to the laser, causing a decrease in the signal recording characteristics, that is, the S/N value.
それ故に複屈折の増加を引き起こさないハブと
して、金属板を付けた樹脂製ハブが考案され、接
着によつて光デイスク基板面にハブ樹脂面が貼り
付けられる構成になつている。 Therefore, as a hub that does not cause an increase in birefringence, a resin hub with a metal plate attached has been devised, and the hub resin surface is attached to the optical disk substrate surface by adhesive.
しかし乍らこの方法は、ハブ樹脂面に接着剤を
塗布するのが煩雑で、しかもハブを光デイスク基
板に貼り付けてから芯出しするのが困難であり、
大量生産に向いていないという問題点がある。 However, with this method, it is complicated to apply adhesive to the resin surface of the hub, and it is difficult to center the hub after pasting it on the optical disk substrate.
The problem is that it is not suitable for mass production.
（発明が解決しようとする問題点）
本発明者らは、上述のような金属板を付けた樹
脂製ハブが、樹脂製光デイスク基板に接着剤を用
いて貼り付けられた時に光デイスク基板に複屈折
を生じないことに着目し、ハブ樹脂面に接着剤を
塗布する煩雑さを排除して取り付けハブの芯出し
が容易に出来、しかも大量生産に適した構造のマ
グネツトクランプ用ハブとその取り付け方法を提
供することにある。(Problems to be Solved by the Invention) The present inventors discovered that when a resin hub with a metal plate as described above is attached to a resin optical disk substrate using an adhesive, Focusing on the fact that birefringence does not occur, we have developed a hub for magnetic clamps that eliminates the trouble of applying adhesive to the resin surface of the hub, makes it easy to center the mounting hub, and has a structure suitable for mass production. The purpose is to provide an installation method.
（問題点を解決するための手段）
本発明のマグネツトクランプ用ハブは、樹脂基
板からなるマグネツトクランプ用ハブを取り付け
た光デイスクを、デイスクドライブに装着固定す
る際のマグネツトクランプ用ハブにおいて、該ハ
ブの構造が樹脂と金属板を一体成形したもの又は
金属粉、磁性体粉を混入したプラスチツク成形品
からなり、且つ接着剤又は接着溶剤注入用の複数
個の穴を有し、また樹脂基板に接するハブ樹脂面
には注入された接着剤又は接着溶剤が流延する溝
を有し、前記金属板には芯出し用中心穴を有する
ことを特徴とするものである。(Means for Solving the Problems) The magnetic clamp hub of the present invention is used as a magnetic clamp hub when an optical disk to which a magnetic clamp hub made of a resin substrate is attached is attached and fixed to a disk drive. , the structure of the hub is made of an integrally molded resin and metal plate, or a plastic molded product mixed with metal powder or magnetic powder, and has a plurality of holes for injection of adhesive or adhesive solvent; The resin surface of the hub in contact with the substrate has a groove through which the injected adhesive or adhesive solvent flows, and the metal plate has a center hole for centering.
また本発明のマグネツトクランプ用ハブの取り
付け方法は、樹脂製光デイスク基板を吸引口を有
するターンテーブルに載せ、光デイスク基板を基
板と接触させたハブの中心軸を中心に回転させて
芯出しするか、又はデイスク基板の中心穴を利用
し芯出しし、その後基板中心穴下部より吸引し乍
ら前記ハブの穴に接着剤又は接着溶剤を注入し
て、基板との界面に流延させて基板にハブを取り
付けることを特徴とするものである。 The method for attaching the magnetic clamp hub of the present invention is to place a resin optical disk substrate on a turntable having a suction port, and center the optical disk substrate by rotating it around the central axis of the hub that is in contact with the substrate. Alternatively, use the center hole of the disk substrate for centering, and then inject adhesive or adhesive solvent into the hole of the hub while suctioning from the bottom of the center hole of the disk substrate, and spread it on the interface with the substrate. The feature is that a hub is attached to the board.
以下に本発明の実施例について説明する。 Examples of the present invention will be described below.
（実施例）
以下、本発明について実施例を示す図面を参照
して詳細に説明する。(Examples) Hereinafter, the present invention will be described in detail with reference to drawings showing examples.
第１図は、従来の金属板を付けた樹脂製ハブが
樹脂基板からなるエアーサンドイツチタイプの光
デイスクの上下両面に接着剤を介して貼り付けら
れた斜視図であり、第２図はその断面図である。
第１図において、参照符号１はエアーサンドイツ
チタイプの樹脂製基板からなる光デイスクであ
り、２は中心穴を有する金属板を付けた樹脂製マ
グネツトクランプ用ハブである。 FIG. 1 is a perspective view of a conventional resin hub with a metal plate attached to the upper and lower surfaces of an air sandwich type optical disk made of a resin substrate via adhesive. FIG.
In FIG. 1, reference numeral 1 is an optical disk made of an air sandwich type resin substrate, and 2 is a hub for a resin magnetic clamp equipped with a metal plate having a center hole.
第３図は、本発明の一実施例を示すマグネツト
クランプ用ハブの上面図、第４図は本発明の一実
施例を示すマグネツトクランプ用ハブの断面図で
ある。図においてハブの樹脂部分７とハブの金属
板部分８とは射出成形により一体成形されたもの
である。ハブの樹脂部分７は、光デイスク基板
３，３′に貼り付けるものであるから、温度変化
による熱膨張、熱収縮が光デイスク基板３，３′
と同一のものが好ましく、従つて光デイスク基板
３，３′と同一樹脂で成形される。ハブの金属板
部分８は鉄などの通常の磁性体金属であればよ
い。ハブの一体成形は、通常のインサート成形法
によつて行われる。ハブ上面よりの平面図第３図
において３個の穴は、接着剤又は接着溶剤注入用
穴１１であり、この穴の数は１つ以上であれば幾
つでもよい。接着剤又は接着溶剤注入用穴１１は
貫通しており、ハブ断面図第４図のハブ樹脂部分
の下面（光デイスク基板との接着面になる）に１
つ又はそれ以上設けられた接着剤流延用溝１２に
通じている。この溝は、ハブの円周方向に設けら
れている。 FIG. 3 is a top view of a magnetic clamp hub showing an embodiment of the present invention, and FIG. 4 is a sectional view of the magnetic clamp hub showing an embodiment of the present invention. In the figure, the resin portion 7 of the hub and the metal plate portion 8 of the hub are integrally molded by injection molding. Since the resin portion 7 of the hub is attached to the optical disk substrates 3, 3', thermal expansion and contraction due to temperature changes will occur due to the optical disk substrates 3, 3'.
It is preferable to use the same resin as the optical disk substrates 3 and 3'. The metal plate portion 8 of the hub may be made of ordinary magnetic metal such as iron. The integral molding of the hub is performed by a normal insert molding method. In FIG. 3, a plan view from the top of the hub, three holes are adhesive or adhesive solvent injection holes 11, and the number of these holes may be any number as long as it is one or more. The adhesive or adhesive solvent injection hole 11 penetrates through the hub resin part (the adhesive surface with the optical disk substrate) as shown in the cross-sectional view of the hub in FIG. 4.
It communicates with one or more adhesive casting grooves 12. This groove is provided in the circumferential direction of the hub.
接着剤吸引口１４は、接着剤注入用穴１１から
最も遠方の位置に設けられており、この吸引口は
接着剤流延用溝に直交する。ここで、接着剤流延
用溝１２を内周端に開口する様に設けるか、接着
剤注入用穴１１同様の穴をハブに開けることによ
り設けてもよい。 The adhesive suction port 14 is provided at the farthest position from the adhesive injection hole 11, and this suction port is orthogonal to the adhesive casting groove. Here, the adhesive casting groove 12 may be provided so as to open at the inner peripheral end, or may be provided by opening a hole similar to the adhesive injection hole 11 in the hub.
ハブ最外周部には、ハブ面出し用部位が設けら
れ面出し部への接着剤の付着を防止するガード溝
をその内側に設けている。 A portion for exposing the hub surface is provided at the outermost peripheral portion of the hub, and a guard groove is provided inside the portion for preventing adhesive from adhering to the surface portion.
第５図は、本発明の一実施例を示すマグネツト
クランプ用ハブの下面図であり、接着剤流延用溝
１２の図解を容易にするものである。 FIG. 5 is a bottom view of a hub for a magnetic clamp showing one embodiment of the present invention, and is intended to facilitate illustration of the adhesive casting groove 12.
ハブ樹脂面出し部分１３は、光デイスク基板面
にピツタリ合う様に面出ししており、これにより
ハブ付きデイスクに反りや面ぶれが生じないばか
りでなく、ハブに注入された接着剤又は接着溶剤
がハブの外側にはみ出すことがなく、接着剤注入
時に光デイスク中心穴下部からの吸引により接着
剤流延用溝１２への接着剤又は接着溶剤の流延を
均等に行わせることが出来る。 The hub resin exposed portion 13 is exposed so as to fit perfectly with the surface of the optical disk substrate, which not only prevents the disk with a hub from warping or wobbling, but also prevents adhesive or adhesive solvent injected into the hub. The adhesive does not protrude outside the hub, and when the adhesive is injected, the adhesive or adhesive solvent can be uniformly poured into the adhesive casting groove 12 by suction from the lower part of the center hole of the optical disk.
次に、本発明におけるハブの取り付け方法につ
いて述べる。 Next, a method for attaching a hub according to the present invention will be described.
第６図は、本発明の一実施例を示す概要断面図
である。光デイスク基板３をターンテーブル１４
に載せ、光デイスク基板３と接する面はゴム状弾
性体から成り、中心部に接着剤吸引口１５を有
し、図示されていない真空系に接続されている。
ターンテーブル１４に載せられた光デイスク基板
３は図示されていないモーターによつて回転させ
られ、光学ヘツド１６のトラツキングによつて光
デイスク基板３は自動的に偏芯のない位置にセツ
トされる。この光デイスク基板３上に本発明のマ
グネツトクランプ用ハブ２を置き、上から中心軸
１７を差し込みマグネツトクランプ用ハブ２を光
デイスク基板面に押し付ける。 FIG. 6 is a schematic sectional view showing one embodiment of the present invention. The optical disk board 3 is connected to the turntable 14
The surface in contact with the optical disk substrate 3 is made of a rubber-like elastic material, has an adhesive suction port 15 in the center, and is connected to a vacuum system (not shown).
The optical disk substrate 3 placed on the turntable 14 is rotated by a motor (not shown), and by tracking by the optical head 16, the optical disk substrate 3 is automatically set at a position without eccentricity. The magnetic clamp hub 2 of the present invention is placed on the optical disk substrate 3, and the central shaft 17 is inserted from above to press the magnetic clamp hub 2 against the optical disk substrate surface.
その後、図示されていない加圧定量給液装置か
ら所定量の接着剤又は接着溶剤が注射針１８を通
してマグネツトクランプ用ハブ２の接着剤注入用
穴１１に注入される。注入終了と同時にターンテ
ーブル１４の中心部の接着剤吸引口１５の下から
吸引し（通常400mmHg程度でよい）注入接着剤の
過剰分は、接着剤吸引口１５に吸い取られる。 Thereafter, a predetermined amount of adhesive or adhesive solvent is injected into the adhesive injection hole 11 of the magnetic clamp hub 2 through the injection needle 18 from a pressurized metered liquid supply device (not shown). At the same time as the injection is completed, suction is carried out from below the adhesive suction port 15 in the center of the turntable 14 (normally about 400 mmHg is sufficient), and the excess amount of the injected adhesive is absorbed by the adhesive suction port 15.
ここで使用される接着剤は、シアノアクリレー
ト系の瞬間接着剤が好適であり、接着溶剤の場合
は光デイスク基板及びハブ材質がポリメチルメタ
アクリレート又はポリカーボネートから成る時
は、塩化メチレンの使用が好適である。 The adhesive used here is preferably a cyanoacrylate instant adhesive, and in the case of an adhesive solvent, methylene chloride is preferably used when the optical disk substrate and hub material are made of polymethyl methacrylate or polycarbonate. It is.
また、接着剤流延用溝内を接着剤で充填する接
着方法の場合にはエポキシ樹脂、紫外線硬化樹脂
を用いることが出来る。 Furthermore, in the case of an adhesive method in which the inside of the adhesive casting groove is filled with an adhesive, an epoxy resin or an ultraviolet curing resin can be used.
これらの接着剤又は接着溶剤を用いると、ハブ
の貼り付け固定化は約１分間以内で終了するか
ら、光デイスク基板を裏返して同様にして反対側
にもハブを取り付けることが出来る。 When these adhesives or adhesive solvents are used, the adhesion and fixation of the hub can be completed within about one minute, so the optical disk substrate can be turned over and the hub can be attached to the opposite side in the same manner.
（発明の効果）
以上説明したように、本発明によるマグネツト
クランプ用ハブ及びそれの取り付け法によれば、
ハブ取り付けによる光デイスクの複屈折の増加が
なく、ハブ樹脂面に接着剤を塗布する煩雑さを排
除すると共に、取り付けハブの芯出しが容易に出
来、しかも大量生産に適しており品質の信頼性向
上と製造コスト低減の効果がある。(Effects of the Invention) As explained above, according to the magnetic clamp hub and its attachment method according to the present invention,
There is no increase in birefringence of the optical disk due to hub installation, eliminates the trouble of applying adhesive to the hub resin surface, and allows for easy centering of the mounting hub.Moreover, it is suitable for mass production and has reliable quality. This has the effect of improving performance and reducing manufacturing costs.
第１図は、従来の金属板を付けた樹脂製ハブが
樹脂製基板からなるエアーサンドイツチタイプの
光デイスク上下両面に接着剤を介して貼り付けら
れた斜視図。第２図は、第１図の断面図である。
第３図は、本発明の一実施例を示すマグネツトク
ランプ用ハブの上面図。第４図は、第３図の断面
図である。第５図は、第３図の下面図である。第
６図は、本発明の一実施例を示すハブの取り付け
方法を示した概略断面図である。
（符号の説明）、１……光デイスク、２……マ
グネツトクランプ用ハブ、３，３′……光デイス
ク基板、４，４′……情報記録薄膜層、５，５′…
…スペーサー、６，６′……光デイスク貼り合わ
せ接着剤、７，７′……ハブの樹脂部分、８，
８′……ハブの金属板部分、９，９′……金属板の
芯出し中心穴、１０，１０′……ハブの貼り付け
接着層、１１……接着剤又は接着溶剤注入穴、１
２……接着剤流延用溝、１３……ハブ樹脂面出し
部分、１４……ターンテーブル、１５……接着剤
吸引口、１６……光学ヘツド、１７……中心軸、
１８……注射針、１９……ガード溝。
FIG. 1 is a perspective view of a conventional resin hub with a metal plate attached to the upper and lower surfaces of an air sandwich type optical disk made of a resin substrate via adhesive. FIG. 2 is a sectional view of FIG. 1.
FIG. 3 is a top view of a hub for a magnetic clamp showing an embodiment of the present invention. FIG. 4 is a sectional view of FIG. 3. FIG. 5 is a bottom view of FIG. 3. FIG. 6 is a schematic sectional view showing a method of attaching a hub according to an embodiment of the present invention. (Explanation of symbols), 1... Optical disk, 2... Magnetic clamp hub, 3, 3'... Optical disk substrate, 4, 4'... Information recording thin film layer, 5, 5'...
...Spacer, 6,6'...Optical disk bonding adhesive, 7,7'...Resin part of hub, 8,
8'... Metal plate part of the hub, 9, 9'... Centering center hole of the metal plate, 10, 10'... Adhesive layer for attaching the hub, 11... Adhesive or adhesive solvent injection hole, 1
2... Groove for adhesive casting, 13... Hub resin surface exposed portion, 14... Turntable, 15... Adhesive suction port, 16... Optical head, 17... Center shaft,
18...syringe needle, 19...guard groove.
Claims (1)
を取り付けた光デイスクをデイスクドライブに装
着固定する際のマグネツトクランプ用ハブにおい
て、該ハブの構造が樹脂と金属板を一体成形した
もの又は金属粉、磁性体粉を混入したプラスチツ
ク成形品から成り、且つ接着剤又は接着溶剤注入
用の複数個の穴を有し、また樹脂基板に接するハ
ブ樹脂面には注入された接着剤又は接着溶剤が流
延する溝を有し、前記金属板には芯出し用中心穴
を有することを特徴とするマグネツトクランプ用
ハブ。 ２ 前記第１項記載のマグネツトクランプ用ハブ
の取り付け方法において、樹脂製光デイスク基板
を吸引口を有するターンテーブルに載せ、光デイ
スク基板を基板と接触させたハブの中心軸を中心
に回転させて芯出しするか、又はデイスク基板の
中心穴を利用し芯出しし、その後基板中心穴下部
より吸引し乍ら前記ハブの穴に接着剤又は接着溶
剤を注入して基板との界面に流延させて、基板に
ハブを取り付けることを特徴とするマグネツトク
ランプ用ハブの取り付け方法。[Scope of Claims] 1. In a magnetic clamp hub for mounting and fixing an optical disk to a disk drive to which a magnetic clamp hub made of a resin substrate is attached, the structure of the hub is formed by integrally molding a resin and a metal plate. It is made of a plastic molded product mixed with material, metal powder, or magnetic powder, and has multiple holes for injection of adhesive or adhesive solvent, and the resin surface of the hub in contact with the resin substrate has an injected adhesive or adhesive. What is claimed is: 1. A hub for a magnetic clamp, characterized in that the hub has a groove through which an adhesive solvent is cast, and the metal plate has a center hole for centering. 2. In the method for attaching a hub for a magnetic clamp as described in item 1 above, a resin optical disk substrate is placed on a turntable having a suction port, and the optical disk substrate is rotated about the central axis of the hub that is in contact with the substrate. Alternatively, use the center hole of the disk substrate for centering, and then apply suction from the bottom of the center hole of the disk, inject adhesive or adhesive solvent into the hole of the hub, and spread it on the interface with the substrate. A method for attaching a hub for a magnetic clamp, characterized by attaching the hub to a board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007933A JPS63177383A (en) | 1987-01-16 | 1987-01-16 | Hub for magnet clamping and its mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62007933A JPS63177383A (en) | 1987-01-16 | 1987-01-16 | Hub for magnet clamping and its mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63177383A JPS63177383A (en) | 1988-07-21 |
| JPH0477392B2 true JPH0477392B2 (en) | 1992-12-08 |
Family
ID=11679317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62007933A Granted JPS63177383A (en) | 1987-01-16 | 1987-01-16 | Hub for magnet clamping and its mounting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63177383A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0323863U (en) * | 1989-07-11 | 1991-03-12 | ||
| KR20100019615A (en) * | 2008-08-11 | 2010-02-19 | 삼성전자주식회사 | Joint body and manufacturing method of the same |
| CN102469730B (en) * | 2010-11-16 | 2014-08-20 | 富泰华工业（深圳）有限公司 | Bonding assembly and bonding method therefor |
| TWI476095B (en) * | 2010-11-22 | 2015-03-11 | Hon Hai Prec Ind Co Ltd | Adhesive assembly and method for adhering the same |
-
1987
- 1987-01-16 JP JP62007933A patent/JPS63177383A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63177383A (en) | 1988-07-21 |
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