JP2592598Y2 - Tape cassette - Google Patents

Tape cassette

Info

Publication number
JP2592598Y2
JP2592598Y2 JP1992038631U JP3863192U JP2592598Y2 JP 2592598 Y2 JP2592598 Y2 JP 2592598Y2 JP 1992038631 U JP1992038631 U JP 1992038631U JP 3863192 U JP3863192 U JP 3863192U JP 2592598 Y2 JP2592598 Y2 JP 2592598Y2
Authority
JP
Japan
Prior art keywords
case
welding
tape cassette
horn
tape
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 - Fee Related
Application number
JP1992038631U
Other languages
Japanese (ja)
Other versions
JPH0596967U (en
Inventor
博志 金田
久雄 加藤
昌寿 岡村
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP1992038631U priority Critical patent/JP2592598Y2/en
Priority to US08/059,840 priority patent/US6532133B1/en
Publication of JPH0596967U publication Critical patent/JPH0596967U/en
Application granted granted Critical
Publication of JP2592598Y2 publication Critical patent/JP2592598Y2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C66/3022—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
    • 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
    • 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
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt 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
    • B29C66/50—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
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7377—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline
    • B29C66/73775—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline
    • B29C66/73776—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined amorphous, semi-crystalline or crystalline the to-be-joined area of at least one of the parts to be joined being crystalline the to-be-joined areas of both parts to be joined being crystalline
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29L2017/008—Tapes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Description

【考案の詳細な説明】[Detailed description of the invention]

【０００１】[0001]

【産業上の利用分野】本考案は、記録メディア、例えば
テープ幅が１／２インチ以上のものテープ状媒体をケー
ス内に収納したビデオカセットなどのテープカセットに
関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cassette such as a video cassette in which a recording medium, for example, a tape medium having a tape width of 1/2 inch or more is housed in a case.

【０００２】[0002]

【従来の技術】一般に、ビデオカセットの情報媒体は、
取扱上ゴミやホコリがつきやすく、傷つきやすいため合
成樹脂製ケースに収納して保護されていて、このケース
はＡＢＳ樹脂（アクリロテトリル・ブタジェン・スチレ
ン共重合樹脂）またはＰＳ樹脂（ポリスチレン系樹脂）
またはＰＰ樹脂（ポリプロピレン系樹脂）などで形成さ
れた上ケースと下ケースとを溶着部に於いて溶着結合し
て構成されている。2. Description of the Related Art Generally, an information medium of a video cassette is
Since it is easy to get dust and dirt on handling, it is protected by being stored in a synthetic resin case, and this case is made of ABS resin (acrylotetrile / butadiene / styrene copolymer resin) or PS resin (polystyrene resin)
Alternatively, an upper case and a lower case formed of a PP resin (polypropylene resin) or the like are welded and connected at a welding portion.

【０００３】[0003]

【考案が解決しようとする課題】従来のビデオカセット
では、図６に示すようにメディアを収納するケースの全
厚さが、厚い例えば２５〜３５ｍｍのビデオカセット、
例えば１／２インチ幅のテープを収納するケースは、上
ケースａと下ケースｂとにそれぞれ溶着突起部ｃを突設
し、両突起部ｃ，ｃの合わせ面或いはケース外周壁の合
わせ面に、溶着リブｄを設けて溶着ホーンｅで結合一体
化しているため、溶着ホーンｅをケース外側から当てて
も溶着部分がケース中央部付近、即ちパーティング面に
あって、ホーン接触面から、特に厚みの厚いビデオカセ
ットの場合、溶着部分が１０ｍｍ以上例えば１０〜１４
ｍｍとなる遠い位置にあって、溶着性が悪く、殊に外周
壁にて溶着する設計では、溶着後のはみ出しが発生して
外観上好ましくない製品になり、また溶着突起部でもポ
リプロピレン系樹脂は結晶性樹脂で溶融するのに強力な
エネルギーのホーンを必要とするものであるために、溶
着突起部以外の個所で溶着したり、ホーンの接触面が溶
着して外観不良となるし、強力なエネルギーのホーンを
使用すると溶着時での白粉発生となって、商品価値も低
下し信頼性の上でも問題となるものであった。本考案
は、これら従来の欠点を排除しようとするもので、ケー
ス外観良好で、溶着エネルギーのロスも少なくして溶着
に必要な振動エネルギーを小さくすることもでき、ＰＰ
樹脂でも溶着性を向上できるし、結合強度も大きく、安
全で信頼性の高いテープカセットを構成簡単で安価な形
態で提供することを目的としたものである。In a conventional video cassette, as shown in FIG. 6, the total thickness of a case for accommodating media is large, for example, a video cassette having a thickness of 25 to 35 mm.
For example, in a case for accommodating a tape having a width of 1/2 inch, welding projections c are provided on the upper case a and the lower case b, respectively, so that the projections c and c are joined to each other or to the joining surface of the case outer peripheral wall. Since the welding rib d is provided and integrated by the welding horn e, even if the welding horn e is applied from the outside of the case, the welding portion is in the vicinity of the center of the case, that is, on the parting surface. In the case of a thick video cassette, the welded portion is 10 mm or more, for example, 10 to 14 mm.
mm, the weldability is poor, especially in the design of welding on the outer peripheral wall, the protrusion after welding occurs and the product is unfavorable in appearance. Since it requires a horn of strong energy to melt with the crystalline resin, it can be welded at places other than the welding projections, or the contact surface of the horn can be welded, resulting in poor appearance and strong When an energy horn is used, white powder is generated at the time of welding, which reduces the commercial value and poses a problem in reliability. The present invention is intended to eliminate these conventional drawbacks, and has a good case appearance, a small loss of welding energy, and a small vibration energy required for welding.
It is an object of the present invention to provide a safe and highly reliable tape cassette in a simple and inexpensive form, which can improve the weldability even with resin and has a large bonding strength.

【０００４】[0004]

【課題を解決するための手段】本考案は、テープ状媒体
を収納する合成樹脂製ケースが、上ケースと下ケースと
からなり、上下両ケースを溶着部で一体連結し、そのケ
ース全厚さｔが２５ｍｍ以上のテープカセットにおい
て、前記ケース内面に突設した中空筒体の当接面にリン
グ状の溶着リブを備えてケースの溶着面とし、該ケース
の溶着面が超音波溶着ホーンの接触面よりケース全厚さ
ｔの１／８〜１／４の位置ｔ１にある構成としたテープ
カセットである。According to the present invention, a synthetic resin case for accommodating a tape-like medium is composed of an upper case and a lower case. In a tape cassette having a length t of 25 mm or more, a ring-shaped welding rib is provided on an abutting surface of a hollow cylindrical body protruding from the inner surface of the case to form a welding surface of the case, and the welding surface of the case is in contact with an ultrasonic welding horn. a tape cassette where the structure is in the position t 1 of 1 / 8-1 / 4 of the surface of the case the total thickness t.

【０００５】[0005]

【作用】上下両ケースを溶着ホーンで溶着一体化するの
に、上下ケースを合わせるとケース全厚さｔが２５ｍｍ
以上となり、一方のケース、例えば下ケースに突設され
ている中空筒体の溶着用突起と、上ケースに突設した中
空筒体の溶着用突起との間にあるリング状の溶着リブが
溶着ホーンの接触面よりケース全厚さの１／８〜１／４
に位置させた状態として、上ケースの外側から溶着ホー
ンで振動エネルギーで溶着リブを溶融して固着一体化す
るもので、溶着後のケース外面に溶着はみだしによる外
観上の不具合もなく、溶着ホーンのエネルギーロスを少
なくし、溶着性を向上させ、しかも溶着に必要な振動エ
ネルギーを小さくすることで、溶着時での白粉発生をも
防止して、信頼性の高いテープカセットとすることがき
る。[Function] In order to integrate the upper and lower cases by welding with a welding horn, the total thickness t of the case is 25 mm when the upper and lower cases are combined.
As described above, a ring-shaped welding rib between the welding projection of the hollow cylinder projecting from the lower case and the welding projection of the hollow cylinder projecting from the upper case is welded. 1/8 to 1/4 of the total thickness of the case from the contact surface of the horn
The welding horn is melted with vibration energy from the outside of the upper case and fixedly integrated with the welding horn from the outside of the upper case.There is no appearance defect due to welding protrusion on the outer surface of the case after welding, and the welding horn By reducing the energy loss, improving the weldability, and reducing the vibration energy required for welding, the generation of white powder during welding can be prevented, and a highly reliable tape cassette can be obtained.

【０００６】[0006]

【実施例】本考案の実施例を図１乃至図４の例で説明す
ると、ポリプロピレン樹脂を用いたケースが厚みの厚い
上ケース１と下ケース２とからなり、上下両ケースを溶
着部で溶着して一体連結し、そのケース全厚さｔが２５
ｍｍ以上のテープカセットとなり、内部に媒体を収納す
る構成とするのに、前記溶着部が、一方のケース例えば
下ケース２の内面或いは両上下ケース１，２に複数突設
された中空筒体の突起３であって、該突起頂面にリング
状の溶着リブ４を備え、該溶着リブ４を他方の上ケース
１の中空筒体の突起内面に当接させるように配備してケ
ース溶着面とし、上ケース１の外側から溶着ホーン５で
前記溶着リブ４を溶融して一体固着するものである。即
ち、上下ケースの溶着面が超音波溶着ホーン５の接触面
よりケース全厚さｔの１／８〜１／４の位置ｔ１にある
ようにして一体連結してある。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 4. A case using a polypropylene resin is composed of a thick upper case 1 and a lower case 2, and both upper and lower cases are welded by welding portions. And the case has a total thickness t of 25.
mm or more, and the welding part is formed of a hollow cylindrical body having a plurality of protruding portions provided in one case, for example, the inner surface of the lower case 2 or both upper and lower cases 1 and 2. The projection 3 is provided with a ring-shaped welding rib 4 on the top surface of the projection, and the welding rib 4 is arranged so as to be in contact with the inner surface of the projection of the hollow cylindrical body of the other upper case 1 to form a case welding surface. The welding rib 4 is melted by a welding horn 5 from the outside of the upper case 1 to be integrally fixed. That is, are integrally connected as welding surfaces of the upper and lower cases is at the position t 1 of 1 / 8-1 / 4 of the ultrasonic welding horn 5 of the contact surface of the case the total thickness t.

【０００７】この場合、前記突起３は下ケース２と上ケ
ース１とに設けて、下ケース側から溶着ホーン５で溶融
させるようにすることも、上下両ケースの対応によって
選べ、また他方のケース内面に当接する溶着リブ４と溶
着ホーン５との距離が可及的に小さくなる、例えば１／
２インチ幅のテープを収納するビデオカセットの厚みは
おおよそ１インチ（２５ｍｍ）となるので、溶着ホーン
５から１／４インチ以下となる位置にするのがよい。な
お、ケース外面から溶着位置が１／４インチ以上となる
と、溶着困難の場合が発生するので避けるべきである。
また、前記溶着突起部は、従来のタッピング位置と同様
な位置である媒体収納エリア以外のケース四隅部や中央
部の位置にあるので、カセットハーフとしての全体的バ
ランスや剛性が良好なものとなり、溶着後のはみだしに
よる外観上の不具合もなく有効である。In this case, the projections 3 are provided on the lower case 2 and the upper case 1 and can be melted by the welding horn 5 from the lower case side. The distance between the welding rib 4 and the welding horn 5 contacting the inner surface is reduced as much as possible, for example, 1 /
Since the thickness of a video cassette for storing a 2-inch wide tape is approximately 1 inch (25 mm), it is preferable that the video cassette be located at a position that is 1/4 inch or less from the welding horn 5. If the welding position from the outer surface of the case is 1/4 inch or more, welding may be difficult, which should be avoided.
In addition, since the welding projections are located at the four corners and the center of the case other than the medium storage area which is the same position as the conventional tapping position, the overall balance and rigidity of the cassette half are good, It is effective without appearance defects due to protrusion after welding.

【０００８】なお、前記突起３としては、ケースの四隅
や中央でテープリール収納エリア以外の部位を活用して
配列する。また、前記上ケース１と下ケース２とからな
るケース内には、回転可能に備えた一対のリール１２，
１２にテープ１１を巻回配備し、該リール１２に設けた
係止歯１２１に係脱してリール２の回転を規制する一対
のリールブレーキ１３をバネで附勢して備え、該リール
ブレーキ１３をデッキ側解除ピンの挿入口に臨ましめら
れたレリーズレバー１４で連動させるテープカセットと
してある。The projections 3 are arranged at the four corners and at the center of the case using portions other than the tape reel storage area. A pair of rotatable reels 12 is provided in a case including the upper case 1 and the lower case 2.
The tape 11 is deployed winding 12, comprising by a pair of reel brakes 13 for regulating the rotation of the reel 2 disengaged from the locking teeth 12 1 provided on the reel 12 and biasing spring, the reel brake 13 Are linked by a release lever 14 facing the insertion opening of the deck side release pin.

【０００９】図５の実施例では、上ケース１又は下ケー
ス２が、溶着ホーン５の先端部を挿入する凹部６を備え
ているもので、ＰＰ樹脂のケースでも溶着にエネルギー
ロスがなく効率よく、かつ溶着性をも大巾に向上させて
一体結合化できるようにしてある。In the embodiment shown in FIG. 5, the upper case 1 or the lower case 2 is provided with the concave portion 6 into which the tip of the welding horn 5 is inserted. In addition, the weldability is greatly improved so that they can be integrally joined.

【００１０】各実施例では、溶着部として前記突起３
は、嵌合構造として位置決め機能を与えて溶着工程の精
度と作業性を向上させてもよい。In each embodiment, the projection 3 is used as a welding portion.
May provide a positioning function as a fitting structure to improve the accuracy and workability of the welding process.

【００１１】[0011]

【考案の効果】本考案は、テープ状媒体を収納する合成
樹脂製ケースが、上ケースと下ケースとからなり、上下
両ケースを溶着部で一体連結し、そのケース全厚さｔが
２５ｍｍ以上のカートリッジにおいて、前記ケース内面
に突設した中空筒体の当接面にリング状の溶着リブを備
えてケースの溶着面とし、該ケースの溶着面が超音波溶
着ホーンの接触面よりケース全厚さｔの１／８〜１／４
の位置ｔ１にあることにより、溶着リブの簡単な成形が
可能で、ケース溶着後のケース外への溶着はみだしがな
く、外観体裁を損なうこともなく、溶着ホーンによる溶
着工程においてエネルギーのロスを少なくし、強固で適
確な結合作業ができ、溶着時にホーンで押えつけても溶
着部の突起が倒れることもなく精度とその溶着性を向上
させ、また溶着に必要な振動エネルギーをも小さくする
ことが可能で、品質を高め組立性並びに信頼性とを著し
く向上できるし、商品価値をも高められるなどの実用上
の効果がある。According to the present invention, a synthetic resin case for accommodating a tape-like medium is composed of an upper case and a lower case, and the upper and lower cases are integrally connected by a welding portion, and the total thickness t of the case is 25 mm or more. In the cartridge, the ring-shaped welding rib is provided on the contact surface of the hollow cylindrical body protruding from the inner surface of the case to serve as the welding surface of the case, and the welding surface of the case is thicker than the contact surface of the ultrasonic welding horn. 1/8 to 1/4 of t
By at position t 1 of, allows easy molding of the welding ribs, no protruding welded to the case outside of the case after welded, it without disfiguring appearance, loss of energy in the welding process by the welding horn It is possible to make a strong and accurate joining work, improve the accuracy and weldability of the welded part without falling down even if pressing it with a horn during welding, and reduce the vibration energy required for welding. It is possible to improve the quality and remarkably improve the assemblability and the reliability, and also has a practical effect such as an increase in the commercial value.

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

【図１】本考案の実施例を示す下ケースの平面図であ
る。FIG. 1 is a plan view of a lower case showing an embodiment of the present invention.

【図２】図１の例の一部の斜視図である。FIG. 2 is a perspective view of a part of the example of FIG.

【図３】分離状態の斜視図である。FIG. 3 is a perspective view of a separated state.

【図４】図１の例のケース結合状態の一部の拡大縦断面
図である。FIG. 4 is an enlarged longitudinal sectional view of a part of the example of FIG. 1 in a case-coupled state.

【図５】本考案の他の実施例のケース結合状態の一部の
拡大縦断面図である。FIG. 5 is an enlarged vertical sectional view of a part of a case connection state of another embodiment of the present invention.

【図６】従来例のケース結合状態の一部の拡大縦断面図
である。FIG. 6 is an enlarged vertical cross-sectional view of a part of a conventional example in a case connection state.

【符号の説明】[Explanation of symbols]

１ 上ケース ２ 下ケース ３ 突起 ４ 溶着リブ ５ 溶着ホーン ６ 凹部 １１ テープ １２ テープリール １３ リールブレーキ DESCRIPTION OF SYMBOLS 1 Upper case 2 Lower case 3 Projection 4 Welding rib 5 Welding horn 6 Depression 11 Tape 12 Tape reel 13 Reel brake

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭54−98604（ＪＰ，Ａ) 特開 昭63−39183（ＪＰ，Ａ) 特開 昭63−119084（ＪＰ，Ａ) 実開 昭62−85976（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) G11B 23/087 505 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-54-98604 (JP, A) JP-A-63-39183 (JP, A) JP-A-63-119084 (JP, A) 85976 (JP, U) (58) Field surveyed (Int. Cl. 6 , DB name) G11B 23/087 505

Claims (3)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】 テープ状媒体を収納する合成樹脂製ケー
スが上ケースと下ケースとからなり、上下両ケースを溶
着部で一体連結し、そのケース全厚さｔが２５ｍｍ以上
のテープカセットにおいて、前記ケース内面に突設した
中空筒体の当接面にリング状の溶着リブを備えてケース
の溶着面とし、該ケースの溶着面が超音波溶着ホーンの
接触面よりケース全厚さｔの１／８〜１／４の位置ｔ１
にある構成としたことを特徴とするテープカセット。1. A tape cassette in which a synthetic resin case for accommodating a tape-shaped medium is composed of an upper case and a lower case, and the upper and lower cases are integrally connected by a welding portion, and the case has a total thickness t of 25 mm or more. A ring-shaped welding rib is provided on the contact surface of the hollow cylindrical body protruding from the inner surface of the case to form a welding surface of the case, and the welding surface of the case has a thickness equal to the total thickness t of the case from the contact surface of the ultrasonic welding horn. / 8 to 1/4 of the position t 1
A tape cassette characterized by having the configuration described in (1). 【請求項２】 前記ケースが、ポリプロピレン樹脂の結
晶性樹脂を用いたものである請求項１記載のテープカセ
ット。2. The tape cassette according to claim 1, wherein the case uses a crystalline resin of polypropylene resin. 【請求項３】 前記ケースが、溶着ホーンの先端部を挿
入する凹部を備えている請求項１または２記載のテープ
カセット。3. The tape cassette according to claim 1, wherein the case has a concave portion into which the tip of the welding horn is inserted.
JP1992038631U 1992-05-13 1992-05-13 Tape cassette Expired - Fee Related JP2592598Y2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP1992038631U JP2592598Y2 (en) 1992-05-13 1992-05-13 Tape cassette
US08/059,840 US6532133B1 (en) 1992-05-13 1993-05-11 Recording medium cartridge with improved welding characteristics

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1992038631U JP2592598Y2 (en) 1992-05-13 1992-05-13 Tape cassette

Publications (2)

Publication Number Publication Date
JPH0596967U JPH0596967U (en) 1993-12-27
JP2592598Y2 true JP2592598Y2 (en) 1999-03-24

Family

ID=12530591

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1992038631U Expired - Fee Related JP2592598Y2 (en) 1992-05-13 1992-05-13 Tape cassette

Country Status (1)

Country Link
JP (1) JP2592598Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4593514B2 (en) * 2006-04-27 2010-12-08 富士フイルム株式会社 Reel and recording tape cartridge

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5498604A (en) * 1977-07-20 1979-08-03 Hitachi Maxell Magnetic tape cartridge
JPS6285976U (en) * 1985-11-19 1987-06-01
JPS6339183A (en) * 1986-08-01 1988-02-19 Asahi Chem Ind Co Ltd Cassette half
JPS63119084A (en) * 1986-11-06 1988-05-23 Asahi Chem Ind Co Ltd Cassette half

Also Published As

Publication number Publication date
JPH0596967U (en) 1993-12-27

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