JPS6180535A - Optical information record carrier - Google Patents

Optical information record carrier

Info

Publication number
JPS6180535A
JPS6180535A JP59202556A JP20255684A JPS6180535A JP S6180535 A JPS6180535 A JP S6180535A JP 59202556 A JP59202556 A JP 59202556A JP 20255684 A JP20255684 A JP 20255684A JP S6180535 A JPS6180535 A JP S6180535A
Authority
JP
Japan
Prior art keywords
substrates
substrate
annular
signal recording
optical information
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.)
Pending
Application number
JP59202556A
Other languages
Japanese (ja)
Inventor
Toshikazu Yoshino
吉野　俊和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pioneer Corp
Original Assignee
Pioneer Electronic Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP59202556A priority Critical patent/JPS6180535A/en
Publication of JPS6180535A publication Critical patent/JPS6180535A/en
Pending legal-status Critical Current

Links

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
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3024—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being non-integral with the parts 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • B29C65/088—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations using several cooperating sonotrodes, i.e. interacting with each other, e.g. for realising the same joint
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
    • B29C65/7805—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features
    • B29C65/7808—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots
    • B29C65/7811—Positioning the parts to be joined, e.g. aligning, indexing or centring the parts to be joined comprising positioning features in the form of holes or slots for centring purposes
    • 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
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • 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
    • 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
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • 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
    • B29C66/40—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
    • 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
    • B29C66/72—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 characterised by the structure of the material of the parts to be joined
    • B29C66/723—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 characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/24—Record carriers characterised by shape, structure or physical properties, or by the selection of the material
    • 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
    • B29C66/302—Particular design of joint configurations the area to be joined comprising melt initiators
    • B29C66/3022—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined
    • B29C66/30223—Particular design of joint configurations the area to be joined comprising melt initiators said melt initiators being integral with at least one of the parts to be joined said melt initiators being rib-like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2017/00—Carriers for sound or information
    • B29L2017/001—Carriers of records containing fine grooves or impressions, e.g. disc records for needle playback, cylinder records
    • B29L2017/003—Records or discs
    • B29L2017/005—CD''s, DVD''s

Abstract

PURPOSE:To prevent securely separation of a circular substrate and a spacer from each other by forming a continuous projection which extends to the overall periphery of the annular spacer on the opposite surface of either of the annular spacer and substrate, and joining the projection with the other opposite surface by fusion through ultrasonic oscillation. CONSTITUTION:A couple of circular substrates 11 and 12 made of resin face each other, and signal recording layers 13 and 14 are provided as fine pits (recess) in the respective substrates. Both substrates 11 and 12 are clamped at their outer and inner peripheral parts across a couple of annular spacers 15 and 16, and a space 17 is formed between both substrates 11 and 12. The continuous projections 15 and 16 which extend to the overall peripheries of the annular spacers are formed integrally on the facing surfaces of the annular spacers 15 and 16 to the substrates 11 and 12 and the projections 18 and 19 and substrates 11 and 12 are jointed together by fusion by using, for example, an ultrasonic fusion connecting machine.

Description

【発明の詳細な説明】 技術分野 本発明は光学式情報記録担体に関し、特に内部の信号記
録層に面して空間が設けられた光学式情報記録担体に関
する。TECHNICAL FIELD The present invention relates to an optical information recording carrier, and more particularly to an optical information recording carrier in which a space is provided facing an internal signal recording layer.

背景技術 光学式情報記録担体、例えばＤ　ＲＡＷ（Ｄ　１ｒｅｃ
ｔＲｅａｄ　Ａｆ　ｔｅｒＷｒ　ｉ　ｔｅ　）ディスク
の場合、多数の微細なピットとして情報が記録されるた
め、ピットが形成された層すなわち信号記録層の保護が
重要である。このため、少なくとも一方が信号記録層を
有する一対の円形基板を該信号記録層が内側となるよう
に対向して結合せしめた形式のものが開発されている。BACKGROUND ART Optical information recording carriers, such as D RAW (D 1rec
In the case of a disk (tRead After Write), since information is recorded as many minute pits, it is important to protect the layer in which the pits are formed, that is, the signal recording layer. For this reason, a type has been developed in which a pair of circular substrates, at least one of which has a signal recording layer, are bonded to face each other with the signal recording layer on the inside.

第１図に既に開発されたＤＲＡＷディスクが示されてい
る。FIG. 1 shows a DRAW disk that has already been developed.

図示されるように、樹脂などからなる一対の円形基板１
及び２が対向せられてお）、両基板の内１ｊ１］には信
号記録層３及び４が各々形成されている。As shown in the figure, a pair of circular substrates 1 made of resin or the like
and 2), and signal recording layers 3 and 4 are formed on the two substrates 1j1], respectively.

両基板１及び２０対向面間であって両基板の外周部及び
内周部に環状のスペーサ５及び６が設けられ、該両スペ
ーサと基板ｌ及び２は例えば紫外線硬化型接着剤によっ
て結合せしめられている。すなわち、基板１及び２は空
間７を以て離隔せられているのである。Annular spacers 5 and 6 are provided between the opposing surfaces of both substrates 1 and 20 and on the outer and inner peripheries of both substrates, and the spacers and substrates 1 and 2 are bonded, for example, with an ultraviolet curable adhesive. ing. That is, the substrates 1 and 2 are separated by the space 7.

このように構成されたＤＲＡＷディスクにおいては信号
記録層３及び４の範囲を広くするためにスペーサ５及び
６の幅寸法Ｂα、Ｂｂは小さくされ、故に該両スベー丈
と基板ｌ及び２の接着面積も少ない。このため、基板ｌ
及び２が熱あるいは湿気により膨張した場合、接着部分
が剥離してしまうという問題があった。また、接着剤が
その活性により発生するガスによって信号記録層３及び
４が侵されるということも起きていた。In the DRAW disk configured in this way, the width dimensions Bα and Bb of the spacers 5 and 6 are made small in order to widen the range of the signal recording layers 3 and 4, and therefore, the width dimensions of the spacers 5 and 6 and the adhesion area of the substrates 1 and 2 are reduced. There are also few. For this reason, the substrate l
There was a problem in that when 2 and 2 expanded due to heat or moisture, the adhesive portion would peel off. Furthermore, the signal recording layers 3 and 4 were sometimes attacked by the gas generated by the activation of the adhesive.

発明の概要 本発明は上記した点に鑑みてなされたものであって、そ
の目的とするところは温度及び湿度が高い等、如伺なる
悪環境下にあっても円形基板とスペーサが剥離すること
がない光学式情報記録担体を提供することである。Summary of the Invention The present invention has been made in view of the above points, and its purpose is to prevent the circular substrate and the spacer from peeling off even under adverse environments such as high temperature and humidity. It is an object of the present invention to provide an optical information recording carrier that is free of optical information.

本発明による光学式情報記録担体は、少なくとも一方が
信号記録層を有する一対の円形基板と、該信号記録層が
内側となるように対向すべく該基板の外周部及び内周部
を各々担持する一対の環状スペーサとを含み、該環状ス
ペーサ及び上記基板のうち少なくとも一方の対向面には
該環状スペーサの全周に亘る連続した突起が一体に形成
され、該突起と他方の対向面が超音波振動により融着せ
しめられていることを特徴としている。The optical information recording carrier according to the present invention includes a pair of circular substrates, at least one of which has a signal recording layer, and an outer circumferential portion and an inner circumferential portion of the substrates that face each other so that the signal recording layer is on the inside. a pair of annular spacers, at least one of the annular spacer and the substrate has a continuous protrusion integrally formed on the opposing surface thereof over the entire circumference, and the protrusion and the other opposing surface are exposed to ultrasonic waves. It is characterized by being fused by vibration.

また、本発明による光学式情報記録担体は、上記基板の
外周部及び内周部であって該基板、上記環状スペーサ及
び突起によって形成される凹部内に接着剤が充填されて
いることを特徴としている。Further, the optical information recording carrier according to the present invention is characterized in that an adhesive is filled in the recesses formed by the substrate, the annular spacer, and the projections in the outer and inner peripheral portions of the substrate. There is.

以下、本発明の実施例としてのＤＲＡＷディスクを第２
図及び第３図を参照しつつ説明する。Hereinafter, a DRAW disk as an example of the present invention will be described.
This will be explained with reference to the figures and FIG.

第２図に示されるように、当該ＤＲＡＷディスクは樹脂
などからなる一対の円形基板１１及び１２を有している
。両基板１１及び１２は対向せしめられており、各基板
の内側には信号記録層１３゜１４が夫々設けられている
。この信号記録層１３及び１４は微細なピット（へこみ
）として例えば音声信号を記録したものである。両基板
１１及び１２はその外周部及び内周部において一対の環
状スペーサ１５及び１６によって担持されており、これ
によって、基板１１と１２の間に空間１７が形成されて
いる。As shown in FIG. 2, the DRAW disk has a pair of circular substrates 11 and 12 made of resin or the like. Both substrates 11 and 12 are opposed to each other, and signal recording layers 13 and 14 are provided inside each substrate, respectively. The signal recording layers 13 and 14 record, for example, audio signals as minute pits (dents). Both substrates 11 and 12 are supported by a pair of annular spacers 15 and 16 at their outer and inner peripheries, thereby forming a space 17 between the substrates 11 and 12.

各環状スペーサ１５及び１６の両主面、即ち、基板１１
及び１２との対向面には該各環状スペーサの全周に亘る
連続した突起１８．１９が一体に形成されてお）、該各
突起と基板ｊ１　、１２とは融着せしめられている。第
３図は融着前の状態を示すものであるが、融着前の突起
１８．１９の断面形状は略三角形となっており、これを
上下２台の超音波融着機２１及び２２にて融着せしめる
のである。Both main surfaces of each annular spacer 15 and 16, that is, the substrate 11
and 12 are integrally formed with continuous protrusions 18, 19 extending all around the circumference of each of the annular spacers), and the protrusions and the substrates j1 and 12 are fused together. Figure 3 shows the state before welding, and the cross-sectional shape of the protrusions 18 and 19 before welding is approximately triangular, and these are placed in two ultrasonic welders 21 and 22, upper and lower. It is then fused together.

上方の超音波融着機２１は電源２３により駆動される超
音波振動子２４を備え、該超音波振動子から発せられる
超音波振動をブースタ２５及び振動増幅体２６を介して
伝達し、且つエアシリンダ機ｇ２７にて加圧して融着せ
しめるのでちる。下方の超音波融着機２２もこの超音波
融着機２１と同様に構成されている。但し、下方の超音
波融着機２２が有する振動増幅体２９には、融着される
各部材に形成され且つディスクセンタ孔となる孔に示合
して該各部材を融着時に位置決めするポール部３０が形
成されている。また、上方の超音波融着機２１が有する
振動増幅体２６にはこのポール部３０が挿入される凹部
３１が設けられている。The upper ultrasonic welding machine 21 is equipped with an ultrasonic vibrator 24 driven by a power source 23, transmits ultrasonic vibrations emitted from the ultrasonic vibrator via a booster 25 and a vibration amplification body 26, and The cylinder machine G27 pressurizes and fuses it, so it breaks. The lower ultrasonic welding machine 22 is also configured similarly to this ultrasonic welding machine 21. However, the vibration amplifying body 29 of the lower ultrasonic welding machine 22 has a pole that is formed in each member to be welded and that fits into the hole that becomes the disk center hole and positions each member during welding. A portion 30 is formed. Further, the vibration amplifying body 26 of the upper ultrasonic welding machine 21 is provided with a recess 31 into which the pole portion 30 is inserted.

第２図に示されるように、円形基板１１及び１２の外周
部及び内周部であって、該基板、環状スペーサ１５．１
６及び突起１８．１９によって形成される凹部内には紫
外線硬化型の接着剤３２が充填されている。この接着剤
３２は上記した融着作業が完了した直後に毛細管現象を
利用して流し込まれ、且つ、紫外線照射にて硬化せしめ
られたものである。As shown in FIG.
6 and the projections 18 and 19 are filled with an ultraviolet curing adhesive 32. Immediately after the above-described fusing operation was completed, this adhesive 32 was poured using capillary action and was cured by ultraviolet irradiation.

尚、当該ＤＲＡＷディスクにおいては突起１８゜１９が
環状スペーサ１５及び１６のみに一体成形されているが
、この突起は円形基板１１及び１２に形成してもよい。In this DRAW disk, the protrusions 18 and 19 are integrally formed only on the annular spacers 15 and 16, but these protrusions may also be formed on the circular substrates 11 and 12.

また、当該実施例では一対の円形基板１１．１２並びに
環状スペーサ１５及び１６を一度に融着する場合を示し
たが、まず環状スペーサ１５．１６と下方の円形基板１
２を融着せしめ、然る後、これに上方の円形基板１１を
融着させるというように、融着作業を例えば２工程に分
けることも出来る。Further, in this embodiment, a case is shown in which the pair of circular substrates 11.12 and the annular spacers 15 and 16 are fused together, but first the annular spacers 15.16 and the lower circular substrate 1 are fused together.
For example, the fusion work can be divided into two steps, such as fusion bonding 2 and then fusion bonding the upper circular substrate 11 thereto.

発明の効果 以上詳述した如く、本発明による光学式情報記録担体に
おいては少なくとも一方が信号記録層を有する一対の円
形基板と、該信号記録層が内側となるように対向すべく
該両基板の外周部及び内周部を各々担持する一対の環状
スペーサとを含み、該環状スペーサ及び基板のうち少な
くとも一方の対向面には環状スペーサの全周に亘る連続
した突起が一体に形成され、該突起と他方の対向面が超
音波振動により融着せしめられている。このように、円
形基板と環状スペーサの結合を融着によりなしたことに
よって両者は部分的に一体となり、基板が熱あるいは湿
気にニジ膨張したり、あるいは情報記録担体を床に落と
すことなどによシ大きな外力が加わっても円形基板と環
状スペーサが剥離することがないのである。Effects of the Invention As detailed above, the optical information recording carrier according to the present invention includes a pair of circular substrates, at least one of which has a signal recording layer, and a pair of circular substrates that face each other so that the signal recording layer is on the inside. a pair of annular spacers each supporting an outer circumferential portion and an inner circumferential portion, and a continuous protrusion extending over the entire circumference of the annular spacer is integrally formed on an opposing surface of at least one of the annular spacer and the substrate; and the other opposing surface are fused together by ultrasonic vibration. In this way, by joining the circular substrate and the annular spacer by fusion bonding, the two become partially integrated, and there is no possibility that the substrate will expand due to heat or moisture, or the information recording carrier will be dropped on the floor. Even if a large external force is applied, the circular substrate and the annular spacer will not separate.

また、本発明による光学式情報記録担体においては上記
円形基板の外周部及び内周部であって該基板、上記環状
スペーサ及び突起によって形成される凹部内に接着剤が
充填されている。従って、円形基板と環状スペーサの結
合が更に堅固になるのである。また、該接着剤の活性に
より発生するガスが光学式情報記録担体内の空間に入り
込もうとしても上記突起により阻止されるので、該ガス
によって信号記録層が侵されることもないのである０Further, in the optical information recording carrier according to the present invention, an adhesive is filled in the recesses formed by the circular substrate, the annular spacer, and the protrusions at the outer and inner peripheral portions of the circular substrate. Therefore, the bond between the circular substrate and the annular spacer becomes even stronger. Furthermore, even if the gas generated by the activation of the adhesive tries to enter the space inside the optical information recording carrier, it is blocked by the projections, so the signal recording layer is not attacked by the gas.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は既に開発された光学式情報記録担体を説明する
ための図、第２図は本発明に係るＤ　ＲＡＷディスクの
縦断面図、第３図は融着加工前の各部材と超音波融着機
を示す図である。 主要部分の符号の説明 １１．１２　・・・・・・円形基板 １３．１４　・・・・・・信号記録層 １５．１６・・・・・・環状スペーサ １８．１９　・・・・・・突起Fig. 1 is a diagram for explaining an optical information recording carrier that has already been developed, Fig. 2 is a longitudinal cross-sectional view of a D RAW disk according to the present invention, and Fig. 3 is a diagram showing each member before fusion processing and ultrasonic waves. It is a figure showing a fusion machine. Explanation of symbols of main parts 11.12 ......Circular substrate 13.14 ...Signal recording layer 15.16 ...Annular spacer 18.19 ...Protrusion

Claims (2)

【特許請求の範囲】[Claims] （１）少なくとも一方が信号記録層を有する一対の円形
基板と、前記信号記録層が内側となるように対向すべく
前記基板の外周部及び内周部を各々担持する一対の環状
スペーサとを含み、前記環状スペーサ及び基板のうち少
なくとも一方の対向面には前記環状スペーサの全周に亘
る連続した突起が一体に形成され、前記突起と他方の対
向面が超音波振動により融着せしめられていることを特
徴とする光学式情報記録担体。(1) A pair of circular substrates, at least one of which has a signal recording layer, and a pair of annular spacers that support the outer and inner circumferential parts of the substrates so as to face each other so that the signal recording layer is on the inside. , a continuous protrusion extending around the entire circumference of the annular spacer is integrally formed on an opposing surface of at least one of the annular spacer and the substrate, and the protrusion and the other opposing surface are fused together by ultrasonic vibration. An optical information recording carrier characterized by: （２）少なくとも一方が信号記録層を有する一対の円形
基板と、前記信号記録層が内側となるように対向すべく
前記基板の外周部及び内周部を各々担持する一対の環状
スペーサとを含み、前記環状スペーサ及び基板のうち少
なくとも一方の対向面には前記環状スペーサの全周に亘
る連続した突起が一体に形成され、前記突起と他方の対
向面が超音波振動により融着せしめられ、前記基板の外
周部及び内周部であつて前記基板、環状スペーサ及び突
起によつて形成される凹部内には接着剤が充填されてい
ることを特徴とする光学式情報記録担体。(2) A pair of circular substrates, at least one of which has a signal recording layer; and a pair of annular spacers supporting the outer and inner circumferential portions of the substrates and facing each other so that the signal recording layer is on the inside. , a continuous protrusion extending over the entire circumference of the annular spacer is integrally formed on an opposing surface of at least one of the annular spacer and the substrate, and the protrusion and the other opposing surface are fused together by ultrasonic vibration; 1. An optical information recording carrier characterized in that recesses formed by the substrate, the annular spacer, and the protrusions at the outer and inner circumferences of the substrate are filled with an adhesive.
JP59202556A 1984-09-27 1984-09-27 Optical information record carrier Pending JPS6180535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59202556A JPS6180535A (en) 1984-09-27 1984-09-27 Optical information record carrier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59202556A JPS6180535A (en) 1984-09-27 1984-09-27 Optical information record carrier

Publications (1)

Publication Number Publication Date
JPS6180535A true JPS6180535A (en) 1986-04-24

Family

ID=16459453

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59202556A Pending JPS6180535A (en) 1984-09-27 1984-09-27 Optical information record carrier

Country Status (1)

Country Link
JP (1) JPS6180535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305304A (en) * 1986-06-30 1994-04-19 Pioneer Electronic Corporation Optical information carrier having a spacer securely bonded between disks by adhesive

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58194153A (en) * 1982-04-27 1983-11-12 トムソン−セエスエフ Protected optical disc and method of composing same
JPS58203645A (en) * 1982-05-21 1983-11-28 Hitachi Ltd Optical disc joining method
JPS60173741A (en) * 1984-02-20 1985-09-07 Nec Corp Production for information recording substrate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58194153A (en) * 1982-04-27 1983-11-12 トムソン−セエスエフ Protected optical disc and method of composing same
JPS58203645A (en) * 1982-05-21 1983-11-28 Hitachi Ltd Optical disc joining method
JPS60173741A (en) * 1984-02-20 1985-09-07 Nec Corp Production for information recording substrate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5305304A (en) * 1986-06-30 1994-04-19 Pioneer Electronic Corporation Optical information carrier having a spacer securely bonded between disks by adhesive

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