JPH0596967U - Tape cassette - Google Patents

Tape cassette

Info

Publication number
JPH0596967U
JPH0596967U JP038631U JP3863192U JPH0596967U JP H0596967 U JPH0596967 U JP H0596967U JP 038631 U JP038631 U JP 038631U JP 3863192 U JP3863192 U JP 3863192U JP H0596967 U JPH0596967 U JP H0596967U
Authority
JP
Japan
Prior art keywords
welding
case
horn
tape cassette
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.)
Granted
Application number
JP038631U
Other languages
Japanese (ja)
Other versions
JP2592598Y2 (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

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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)

Abstract

(57)【要約】 【目的】上ケースと下ケースとを溶着ホーンによる溶着
一体化をエネルギーロスを少なくして行なえ、溶着結合
性を向上し溶着時での白粉発生を防止する。 【構成】上下両ケース１，２の溶着部が、超音波溶着ホ
ーン５の接触面よりケース全厚さの１／８〜１／４の位
置にあることで、溶着後のはみだしによる外観上の不具
合がなく、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、適確な結合作業ができ、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。 (57) [Summary] [Purpose] The upper case and the lower case can be welded and integrated by a welding horn with a small energy loss, the welding bondability is improved, and generation of white powder during welding is prevented. [Structure] Since the welded portions of the upper and lower cases 1 and 2 are located 1/8 to 1/4 of the total thickness of the case from the contact surface of the ultrasonic welding horn 5, the appearance due to the protrusion after welding There is no defect, energy loss is reduced in the welding process using the welding horn, proper bonding work can be performed, its welding performance is improved, and the vibration energy required for welding can be reduced, improving quality. Assemblability and reliability can be significantly improved.

Description

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

【０００１】[0001]

【産業上の利用分野】[Industrial applications]

本考案は、記録メディア、例えばテープ状媒体をケース内に収納したビデオカ セット或いはデジタルオーディオテープ（ＤＡＴ）などのテープカセットに関す るものである。 The present invention relates to a tape cassette such as a video cassette or a digital audio tape (DAT) in which a recording medium, for example, a tape-shaped medium is housed in a case.

【０００２】[0002]

【従来の技術】[Prior Art]

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ＡＢ Ｓ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。 In general, the information media of video cassettes are easily protected from dust and dirt during handling, and are therefore protected by being stored in a synthetic resin case. This case is made of ABS resin (acrylotelyl butadiene styrene copolymer resin). ) Or PS resin (polystyrene resin) or PP resin (polypropylene resin) or the like, and an upper case and a lower case are weld-bonded to each other at a weld portion.

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

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、特にビデオ カセットの場合１０〜１４ｍｍ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、接触面で溶着して外観不良となって、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 the conventional video cassette, as shown in FIG. 6, in the case for storing the media, the upper case a and the lower case b are provided with welding protrusions c, respectively, and the protrusions c and c are joined to each other or the outer periphery of the case. Since the welding ribs d are provided on the mating surfaces of the walls and are joined 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 near the center of the case, that is, the parting surface. In the case of a video cassette, which is far away from the horn contact surface, which is 10 to 14 mm, the weldability is poor. In particular, the design that welds on the outer peripheral wall causes protrusion after welding, which is not desirable in appearance. Since it is a manufactured product and the polypropylene resin also needs strong energy to melt at the welding protrusions because it is a crystalline resin, welding and contact at locations other than the welding protrusions In welded become a poor appearance, was that also a problem on the trade value and reduced reliability. The present invention is intended to eliminate these conventional defects, has a good case appearance, and can reduce the loss of welding energy to reduce the vibration energy required for welding, and can improve the welding property even with PP resin. However, the purpose of the tape cassette is to provide a safe and highly reliable tape cassette with a high bonding strength in a simple and inexpensive form.

【０００４】[0004]

【課題を解決するための手段】[Means for Solving the Problems]

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たテープカセットにおいて、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の１／８〜１／４の 位置にあることを特徴とするテープカセットである。 The present invention is a tape cassette in which 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. In this case, the welding surface of the case is an ultrasonic welding horn. The tape cassette is located at a position ⅛ to ¼ of the total thickness of the case from the contact surface.

【０００５】[0005]

【作用】[Action]

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一 方のケース、例えば下ケースに突設されている溶着用突起と、上ケースに突設し た溶着用突起との間にある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。 When the upper and lower cases are combined together, the upper and lower cases can be integrated by welding with a welding horn.However, one case, for example, the lower part of the welding protrusions and the upper case of the welding protrusions With the welding ribs between them positioned 1/8 to 1/4 of the total case thickness from the contact surface of the welding horn, the welding ribs are melted and fixed by vibration energy from the outside of the upper case with the welding horn. Since it is integrated, there is no appearance defect due to welding protrusion on the outer surface of the case after welding, energy loss of the welding horn is reduced, welding performance is improved, and vibration energy required for welding is also reduced. Also, it is possible to prevent the generation of white powder at the time of welding and to make a tape cassette with high reliability.

【０００６】[0006]

【実施例】【Example】

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に複数突設された突起３であって、該突起頂 面に溶着リブ４を備え、該溶着リブ４を他方の上ケース１の突起内面に当接させ るように配備し、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。An embodiment of the present invention will be described with reference to the examples of FIGS. 1 to 4. A case made of polypropylene resin is composed of an upper case 1 and a lower case 2, and the upper and lower cases are welded at a welding portion to accommodate a medium. In addition, the welding portion is a projection 3 provided in a protruding manner on the inner surface of one case, for example, the lower case 2 or both upper and lower cases 1 and 2, and the welding rib 4 is provided on the top surface of the projection. The welding rib 4 is provided so as to abut the inner surface of the projection of the other upper case 1, and the welding rib 4 is melted and fixed integrally from the outside of the upper case 1 by the welding horn 5. That is, the welding surfaces of the upper and lower cases are integrally connected so that they are located at a position t 1 that is ⅛ to ¼ of the total thickness t of the case from the contact surface of the ultrasonic welding horn 5.

【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を選 ぶのが、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 protrusions 3 may be provided on the lower case 2 and the upper case 1 so that they are melted by the welding horn 5 from the lower case side. It is preferable that the distance between the welding rib 4 and the welding horn 5 that come into contact with the inner surface is as small as possible, for example, a position that is 1/4 inch or less from the welding horn 5. If the welding position is 1/4 inch or more from the outer surface of the case, it may be difficult to weld and should be avoided. In addition, the welding projections are located at the four corners or the center of the case other than the medium storage area, which is the same position as the conventional tapping position, because the overall balance and rigidity of the cassette half are good. Therefore, there is no defect in appearance due to the protrusion after welding, which is effective.

【０００８】 なお、前記突起３としては、中空筒体であって、頂面にリング状の溶着リブ４ を突設してあるが、いずれも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のがよい。 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 protrusion 3 is a hollow cylindrical body and has ring-shaped welding ribs 4 projecting from the top surface thereof. However, in all cases, a portion other than the tape reel storage area is formed at the four corners or the center of the case. It is good to arrange by utilizing. Also within casing consisting of the upper case 1 and the lower case 2 which, the tape 11 is deployed wound on a pair of reels 12 and 12 having rotatably, engaged in the locking teeth 12 1 provided on the reel A pair of reel brakes 13 for removing the rotation of the reel 2 and biasing them with springs are provided, and the reel brakes 13 are interlocked by a release lever 14 exposed to 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 recess 6 into which the tip of the welding horn 5 is inserted. Therefore, even in the case of PP resin, there is no energy loss in welding and the efficiency is high. Well, the weldability is greatly improved so that they can be integrally bonded.

【００１０】 各実施例では、溶着部として突起３を中空筒状体で構成し、この突起頂面にリ ング状または断続して環状配列した溶着リブ４を備え、該中空筒体内に嵌合する 凸部１１、例えば筒体若しくは柱体を他方のケース内面に突設したもので、位置 決め機能を与えてあるが、この嵌合構造を仮止め機能を必要に応じ与えて溶着工 程の精度と作業性を向上させるために活用してもよい。In each embodiment, the protrusion 3 is formed as a hollow cylindrical body as a welded portion, and a ring-shaped or intermittently annularly arranged welding rib 4 is provided on the top surface of the protrusion, and the protrusion 3 is fitted into the hollow cylindrical body. The convex portion 11, for example, a cylindrical body or a columnar body is projectingly provided on the inner surface of the other case to provide a positioning function. However, this fitting structure is provided with a temporary fixing function as necessary to achieve a welding process. It may be used to improve accuracy and workability.

【００１１】[0011]

【考案の効果】[Effect of the device]

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たカートリッジにおいて、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の１／８〜１／４の位 置にあることにより、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、適確な結合作業ができ、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。 The present invention is a cartridge 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. In this case, the welding surface of the case contacts the ultrasonic welding horn. Since it is located 1/8 to 1/4 of the total thickness of the case from the surface, there is no protrusion of the outside of the case after the case is welded, and the appearance is not impaired. Energy loss can be reduced, proper joining work can be performed, welding performance can be improved, and vibration energy required for welding can also be reduced, resulting in high quality and outstanding assembly and reliability. There are practical effects such as improvement of product value and product value.

【提出日】平成４年６月２３日[Submission date] June 23, 1992

【手続補正１】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】０００３[Name of item to be corrected] 0003

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【０００３】[0003]

【考案が解決しようとする課題】[Problems to be solved by the device]

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、両溶着突起部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、特にビ デオカセットの場合１０〜１４ｍｍ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、ホーンの接触面でケース表面が溶融して外観不良となって、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、結晶性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 the conventional video cassette, as shown in FIG. 6, the case for storing the media has welding projections c projecting from the upper case a and the lower case b, respectively, and the welding surfaces of the welding projections c and c or the case. Since the welding rib d is provided on the mating surface of the outer peripheral wall and is integrated by the welding horn e, even if the welding horn e is applied from the outside of the case, the welding portion is near the center of the case, that is, the parting surface, The weldability is poor at a position far away from the horn contact surface, particularly 10 to 14 mm in the case of a video cassette. Especially, in the case of a design in which welding is performed on the outer peripheral wall, protrusion after welding occurs, which is not preferable in appearance. In addition, since the polypropylene resin is a crystalline resin that requires strong energy to melt even at the welding protrusions, it may be welded at a place other than the welding protrusions. It is then melted surface of the case at the interface over emissions poor appearance, was achieved also a problem in even commercial value and reduced reliability. The present invention is intended to eliminate these conventional drawbacks, has a good case appearance, can reduce the loss of welding energy and reduce the vibration energy required for welding, and improves the weldability even with a crystalline resin. The purpose of the tape cassette is to provide a safe and highly reliable tape cassette that can be manufactured, has a high bonding strength, and has a simple structure and is inexpensive.

【図面の簡単な説明】[Brief description of 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。2 is a perspective view of a portion 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 vertical cross-sectional view of a part of the case of FIG. 1 in a case joined 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-joined 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 case in which the conventional example is connected.

【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 1 Upper case 2 Lower case 3 Protrusion 4 Welding rib 5 Welding horn 6 Recess 11 Tape 12 Tape reel 13 Reel brake

Claims (4)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【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たテープカセットにおいて、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
の１／８〜１／４の位置にあることを特徴とするテープ
カセット。1. In a tape cassette in which a synthetic resin case for accommodating a tape-shaped medium comprises an upper case and a lower case, and the upper and lower cases are integrally connected by a welding portion, the welding surface of the case is an ultrasonic welding horn. A tape cassette characterized by being located 1/8 to 1/4 of the total thickness of the case from the contact surface. 【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って、ケース内面に突設した
突起の当接面に溶着リブを備えている請求項１記載のテ
ープカセット。2. The tape cassette according to claim 1, wherein the case is made of a crystalline resin such as polypropylene resin, and a welding rib is provided on an abutting surface of a projection protruding on an inner surface of the case. 【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 recess into which the tip of the welding horn is inserted. 【請求項４】 前記突起が、中空筒体であって、頂面に
リング状の溶着リブを突設した請求項１，２または３記
載のテープカセット。4. The tape cassette according to claim 1, wherein the projection is a hollow cylinder, and a ring-shaped welding rib is provided on the top surface of the projection.
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 true JPH0596967U (en) 1993-12-27
JP2592598Y2 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007299437A (en) * 2006-04-27 2007-11-15 Fujifilm Corp Reel and recording tape cartridge

Citations (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

Patent Citations (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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007299437A (en) * 2006-04-27 2007-11-15 Fujifilm Corp Reel and recording tape cartridge
JP4593514B2 (en) * 2006-04-27 2010-12-08 富士フイルム株式会社 Reel and recording tape cartridge

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