JP3036573B2 - Tape cassette - Google Patents

Tape cassette

Info

Publication number
JP3036573B2
JP3036573B2 JP6123328A JP12332894A JP3036573B2 JP 3036573 B2 JP3036573 B2 JP 3036573B2 JP 6123328 A JP6123328 A JP 6123328A JP 12332894 A JP12332894 A JP 12332894A JP 3036573 B2 JP3036573 B2 JP 3036573B2
Authority
JP
Japan
Prior art keywords
welding
tape cassette
fitting
concave
welding rib
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
JP6123328A
Other languages
Japanese (ja)
Other versions
JPH07312059A (en
Inventor
仁 沓掛
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 JP6123328A priority Critical patent/JP3036573B2/en
Priority to US08/346,189 priority patent/US5585988A/en
Priority to DE4441930A priority patent/DE4441930C2/en
Publication of JPH07312059A publication Critical patent/JPH07312059A/en
Application granted granted Critical
Publication of JP3036573B2 publication Critical patent/JP3036573B2/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
    • B29C66/50—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
    • 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
    • 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
    • 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
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/126—Tenon and mortise 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
    • B29C66/21—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being formed by a single dot or dash or by several dots or dashes, i.e. spot joining or spot welding
    • 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
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/322—Providing cavities in the joined article to collect the burr
    • 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
    • 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
    • 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)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【産業上の利用分野】本発明は、オーディオ等のテープ
カセットのケースを形成する上下の各ハーフを超音波接
着などの手段で溶着結合一体化した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 in which upper and lower halves forming a case of a tape cassette for audio and the like are welded and integrated by means such as ultrasonic bonding.

【０００２】[0002]

【従来の技術】従来のテープカセットは、上下ハーフを
対応する結合部においてビス止めで結合するのに代え
て、溶着結合するのが低コストで生産性もあげられるこ
とで提唱されている。この溶着結合タイプでは、ハーフ
周囲側板を全周溶着したり、ハーフの四隅のコーナ部に
設けた結合部と外周の一部を溶着する形態のほかに、四
隅のコーナ部に設けた結合部のみを溶着するタイプのも
のが知られている。2. Description of the Related Art It has been proposed that a conventional tape cassette be welded and joined instead of joining upper and lower halves at corresponding joint portions with screws instead of screws, because of lower cost and higher productivity. In this welding connection type, in addition to the form in which the half peripheral side plate is welded around the entire circumference, the connection part provided in the four corner corners of the half and a part of the outer periphery are welded, only the connection part provided in the four corner corners Is known.

【０００３】[0003]

【発明が解決しようとする課題】ところが、この溶着結
合タイプでは、上下ハーフを合わせて溶着する際にハー
フ周囲側板同士を溶着すると、溶着リブの溶けた部分の
一部が外側にはみ出し易く、外観不良を来すばかりか位
置ズレとなるなど商品価値低下の不具合がある。また、
外観品位が良好なハーフ外周囲を溶着しないコーナ部の
結合部のみの部分を溶着するタイプでは、どうしても接
着力不足が生じて落下事故やその他衝撃によって結合部
の外れや破損が多く耐久性に乏しく、隙間があいたり外
観上ヒケが生じて商品価値が低下するなどの欠点があっ
た。本発明は、このような従来の欠点を排除しようとす
るもので、外観品位も良好で位置決めもし易く、上下ハ
ーフを強固に一体結合してケースを形成でき、衝撃強度
をも大巾に高めて品質向上に寄与し、しかも生産効率良
く安価に製造できるテープカセットを提供することを目
的としたものである。However, in this welding connection type, when the upper and lower halves are welded together and the half peripheral side plates are welded to each other, a part of the welded portion of the welding rib is likely to protrude to the outside, and the appearance is reduced. Not only is there a defect, but there is a problem that the product value is reduced, such as a position shift. Also,
In the type that welds only the joint part of the corner part that does not weld the outer periphery of the half with good appearance quality, there is inevitably insufficient adhesive strength, and the joint part is detached or damaged due to a drop accident or other impact, and the durability is poor However, there are drawbacks such as gaps and sink marks on the appearance, resulting in a decrease in commercial value. The present invention is intended to eliminate such conventional drawbacks, has a good appearance quality, is easy to position, can form a case by firmly connecting the upper and lower halves, and greatly increases the impact strength. It is an object of the present invention to provide a tape cassette that contributes to quality improvement and that can be manufactured efficiently and at low cost.

【０００４】[0004]

【課題を解決するための手段】本発明は、テープカセッ
トのケースを形成する上ハーフと下ハーフにそれぞれ対
応した溶着結合部で、溶着リブを介して一体固着したテ
ープカセットにおいて、上ハーフと下ハーフの結合部を
互いに嵌合凹凸部で形成し、該嵌合凹凸部は高さの異な
る凹凸部からなるものであって、凹凸部のいずれか一方
側に溶着リブを設けると共に、その中心部に肉盗み部を
形成したものである。SUMMARY OF THE INVENTION The present invention relates to a tape cassette integrally fixed via welding ribs at welding joints corresponding to an upper half and a lower half forming a case of the tape cassette. The joining portions of the halves are formed by fitting uneven portions, and the fitting uneven portions are formed of uneven portions having different heights. A welding rib is provided on one side of the uneven portions, and a central portion thereof is provided. The meat stealing part is formed in this.

【０００５】[0005]

【作用】上下ハーフを突き合わせて組立て溶着により一
体結合するのに、上下ハーフのコーナ部にある嵌合凹凸
部を高さの異なる二重嵌合させ、対接面にある溶着リブ
を溶融して固着結合するので、落下時の剪断力を二重嵌
合部で受けることで強度を増し、溶着リブが溶けたもの
が肉盗み部に流れ込むようにしてはみ出し発生がなく、
しかも外観のヒケ防止にも役立たせて、外観品位も良好
で位置決めもし易く、上下ハーフを強固に一体結合して
ケースを形成でき、衝撃強度をも大巾に高めて品質向上
に寄与し、しかも生産効率良く安価に製造できる。[Function] The upper and lower halves are joined together by assembling and welding, but the fitting uneven portions in the corners of the upper and lower halves are double-fitted with different heights, and the welding ribs on the contact surface are melted. As it is fixedly connected, the strength is increased by receiving the shearing force at the time of falling at the double fitting part, so that the melted welding rib flows into the meat stealing part and there is no protrusion,
In addition, it also helps to prevent sink marks on the appearance, it has good appearance quality and is easy to position, and the upper and lower halves can be firmly integrated to form a case, and the impact strength is greatly increased, contributing to quality improvement. It can be manufactured efficiently and at low cost.

【０００６】[0006]

【実施例】本発明の実施例を図１乃至図４のオーディオ
カセットの例で説明すると、テープカセットのケースを
形成する上ハーフと下ハーフとにそれぞれ対応した溶着
結合部、即ち最低４コーナーで溶着リブを介して一体固
着したテープカセットで、上ハーフ１と、下ハーフ２と
の結合部を互いに嵌合凹凸部３，４で形成し、該嵌合凹
凸部３，４は高さの異なり径の異なる凹凸部からなるも
のであって、凹凸部のいずれか一方側に溶着リブ５，６
を二重に設けると共に、その中心部に肉盗み部７を形成
し溶着ホーンで一体結合してテープカセットとしてあ
る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to an example of an audio cassette shown in FIGS. 1 to 4. At least four welding corners corresponding to upper and lower halves forming a tape cassette case, that is, at least four corners. The upper half 1 and the lower half 2 are connected to each other by a tape cassette integrally fixed via welding ribs, and the connecting portions of the upper half 1 and the lower half 2 are formed by fitting concave and convex portions 3 and 4, and the fitting concave and convex portions 3 and 4 have different heights. It consists of uneven portions having different diameters, and welding ribs 5, 6 are provided on either side of the uneven portion.
Are provided at the center, and a meat stealing portion 7 is formed at the center thereof and integrally joined by a welding horn to form a tape cassette.

【０００７】前記嵌合凹凸部３，４としては、円筒状凹
部４と、該円筒状凹部４に嵌合する円筒状凸部３とから
なり、径の異なる二重筒状に形成されていて二重に嵌合
させて、嵌合を高さの異なる凹凸部ですることで位置決
めを確実にし、落下時の剪断力を二重の垂直面で受ける
ことが可能となり強度を増している。この高さは自動機
により制約を受けるが、上下ハーフ合わせ工程で支障が
起きないようにし、外側の凹凸部３，４の径の大きい方
は、嵌合をきつめに設定して剪断力を主に受けるように
し、内側の凹凸部３1,４1 の径の小さい方は嵌合をゆる
めにし、かつ溶着リブ６が設置され中心部に肉盗み部７
ができる径としてあって、溶着リブ６が溶けて肉盗み部
７に溶けた余分のものが流れ込むようにし、必要に応じ
外側の嵌合部に多少流れ込んでも良いように配慮してあ
る。Each of the fitting concave and convex portions 3 and 4 includes a cylindrical concave portion 4 and a cylindrical convex portion 3 fitted into the cylindrical concave portion 4, and is formed in a double cylindrical shape having different diameters. Double positioning is performed, and the positioning is ensured by engaging the concave and convex portions having different heights, and the shear force at the time of falling can be received on the double vertical surface, thereby increasing the strength. Although this height is restricted by the automatic machine, it is necessary to set the fitting to tighter to reduce the shearing force for the larger diameter of the outer concave and convex portions 3 and 4 so that no trouble occurs in the upper and lower half aligning process. It is mainly received, and the smaller diameter of the inner concave / convex portions 3 1 and 4 1 is loosened, and the welding rib 6 is installed, and
The welding rib 6 is melted, so that the excess thing melted into the meat stealing part 7 flows in, and if necessary, it is possible to slightly flow into the outer fitting part.

【０００８】前記嵌合凹凸部３，４，３1 ，４1 の段差
のある対接面には、溶着リブ５，６を環状に突設したも
ので、前記肉盗み部７の周囲にある溶着リブ６を外周に
ある溶着リブ５より高く形成してあって、中心部を完全
に溶着結合させ、外周部は補助的な溶着結合し、該中心
部の溶着リブでの完全に溶着しても肉盗み部７に余分の
ものを流し込んで上下ハーフ間に隙間があかないように
配慮してある。また、前記溶着リブ５，６は、下ハーフ
２或いは上ハーフ１のいずれか一方側に設けてあるが、
上ハーフ１および下ハーフ２にそれぞれ分けて設けるこ
ともできる。[0008] There abutment surface of the fitting concave and convex portion 3,4,3 1, 4 1 of the step is the welding ribs 5,6 which was projected annularly surrounding the said thinned part 7 The welding rib 6 is formed higher than the welding rib 5 on the outer periphery, the central portion is completely welded and joined, and the outer peripheral portion is auxiliary welded and joined completely by the welding rib at the center. Also, an extra thing is poured into the meat stealing portion 7 so that no gap is formed between the upper and lower halves. The welding ribs 5 and 6 are provided on one of the lower half 2 and the upper half 1.
The upper half 1 and the lower half 2 may be provided separately.

【０００９】なお、前記肉盗み部７は、成形上入れ子を
しやすい形状例えばテーパー状にして前記上ハーフ１お
よび下ハーフ２のいずれか或いはいずれにも備えられて
いて、ケースの外観のヒケ防止にも役立ててある。[0009] The meat stealing portion 7 is provided in one or both of the upper half 1 and the lower half 2 in a tapered shape, for example, so that the upper portion 1 can be easily nested. Is also useful.

【００１０】図中８はテープ、９はハブ、１０は嵌合支
柱、１１は溶着ホーンである。In the drawing, reference numeral 8 denotes a tape, 9 denotes a hub, 10 denotes a fitting support, and 11 denotes a welding horn.

【００１１】図４（Ａ）および（Ｃ）の例では、上下ハ
ーフ１，２に肉盗み部７を設け，二重の溶着リブ５，６
を円筒状凸部３、３1 または円筒状凸部３と嵌合凹部４
1 に設け、溶着ホーン１１で固着するものである。図４
（Ｂ），（Ｄ）の例では、下ハーフ２に肉盗み部７を設
け、溶着リブ５，６を円筒状凸部３，３1 または円筒状
凸部３1 と嵌合凹部４に設け、上ハーフ１の外表面に、
凹部１２を形成して溶着ホーンによる加工作業を容易に
したものである。In the example shown in FIGS. 4 (A) and 4 (C), a meat steal portion 7 is provided in the upper and lower halves 1 and 2, and double welding ribs 5 and 6 are provided.
The cylindrical protrusions 3, 3 1, or cylindrical protrusions 3 and the fitting recess 4
1 and fixed by a welding horn 11. FIG.
(B), in the example of (D), the thinned-out part 7 provided in the lower half 2, provided welding ribs 5 and 6 on the cylindrical protrusions 3, 3 1, or cylindrical protrusions 3 1 and the fitting recess 4 , On the outer surface of the upper half 1,
The recess 12 is formed to facilitate the working operation by the welding horn.

【００１２】[0012]

【発明の効果】本発明は、テープカセットのケースを形
成する上ハーフと下ハーフにそれぞれ対応した溶着結合
部で、溶着リブを介して一体固着したテープカセットに
おいて、上ハーフと下ハーフの結合部を互いに嵌合凹凸
部で形成し、該嵌合凹凸部は高さの異なる凹凸部からな
るものであって、凹凸部のいずれか一方側に溶着リブを
設けると共に、その中心部に肉盗み部を形成したことに
より、外観品位も良好で位置決めもし易く、上下ハーフ
を強固に一体結合してケースを形成でき、衝撃強度をも
大巾に高めて品質向上に寄与し、しかも生産効率良く安
価に製造できるものである。According to the present invention, there is provided a welded joint corresponding to an upper half and a lower half forming a case of a tape cassette, wherein the upper half and the lower half are joined together in a tape cassette integrally fixed via welding ribs. Are formed with fitting concave and convex portions, and the fitting concave and convex portions are formed of concave and convex portions having different heights. A welding rib is provided on one side of the concave and convex portions, and a beefed portion is provided at the center thereof. By forming the case, the appearance quality is good and the positioning is easy, the upper and lower halves can be firmly joined together to form a case, the impact strength is greatly increased, contributing to quality improvement, and production efficiency is good and inexpensive It can be manufactured.

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

【図１】本発明の実施例を示す分離状態の斜視図であ
る。FIG. 1 is a perspective view of a separated state showing an embodiment of the present invention.

【図２】図１のＡ−Ａ線及びＢ−Ｂ線における縦断面図
である。FIG. 2 is a longitudinal sectional view taken along lines AA and BB in FIG.

【図３】図２のａ部分の拡大縦断面図である。FIG. 3 is an enlarged longitudinal sectional view of a part a in FIG. 2;

【図４】図４の（Ａ）（Ｂ）（Ｃ）および（Ｄ）はそれ
ぞれ異なった態様の溶着固定の説明図である。4 (A), 4 (B), 4 (C) and 4 (D) are explanatory views of welding and fixing in different modes, respectively.

【符号の説明】 １ 上ハーフ ２ 下ハーフ ３，３1 嵌合凸部 ４，４1 嵌合凹部 ５ 溶着リブ ６ 溶着リブ ７ 肉盗み部 ８ テープ ９ ハブ １０ 嵌合支柱 １１ 溶着ホーン １２ 凹部[Description of Signs] 1 Upper half 2 Lower half 3,3 1 Fitting convex part 4,4 1 Fitting concave part 5 Welding rib 6 Welding rib 7 Filling part 8 Tape 9 Hub 10 Fitting post 11 Welding horn 12 Concave part

Claims (3)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 テープカセットのケースを形成する上ハ
ーフと下ハーフにそれぞれ対応した溶着結合部で、溶着
リブを介して一体固着したテープカセットにおいて、上
ハーフと下ハーフの結合部を互いに嵌合凹凸部で形成
し、該嵌合凹凸部は高さの異なる凹凸部からなるもので
あって、凹凸部のいずれか一方側に溶着リブを設けると
共に、その中心部に肉盗み部を形成したことを特徴とす
るテープカセット。In a tape cassette integrally fixed via welding ribs at a welding joint portion corresponding to an upper half and a lower half forming a case of the tape cassette, the joining portions of the upper half and the lower half are fitted to each other. It is formed of an uneven portion, and the fitting uneven portion is formed of uneven portions having different heights, and a welding rib is provided on one side of the uneven portion, and a meat steal portion is formed at the center thereof. Tape cassette characterized by the following. 【請求項２】 前記嵌合凹凸部が、円筒状凹部と、該円
筒状凹部に嵌合する円筒状凸部からなり、径の異なる二
重筒状に形成されている請求項１記載のテープカセッ
ト。2. The tape according to claim 1, wherein the fitting concave / convex portion comprises a cylindrical concave portion and a cylindrical convex portion fitted into the cylindrical concave portion, and is formed in a double cylindrical shape having different diameters. cassette. 【請求項３】 前記嵌合凹凸部の対接面に溶着リブを環
状に突設したものであって、前記肉盗み部の周囲にある
溶着リブを外周にある溶着リブより高く形成してある請
求項１または２記載のテープカセット。3. A welding rib is annularly protruded from a contact surface of the fitting concave and convex portion in an annular manner, and a welding rib around the stolen portion is formed higher than a welding rib on the outer periphery. The tape cassette according to claim 1.
JP6123328A 1993-11-27 1994-05-13 Tape cassette Expired - Fee Related JP3036573B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP6123328A JP3036573B2 (en) 1994-05-13 1994-05-13 Tape cassette
US08/346,189 US5585988A (en) 1993-11-27 1994-11-22 Tape cassette, tape cassette halves forming mold, and method for preparing a tape cassette
DE4441930A DE4441930C2 (en) 1993-11-27 1994-11-24 Tape cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6123328A JP3036573B2 (en) 1994-05-13 1994-05-13 Tape cassette

Publications (2)

Publication Number Publication Date
JPH07312059A JPH07312059A (en) 1995-11-28
JP3036573B2 true JP3036573B2 (en) 2000-04-24

Family

ID=14857842

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6123328A Expired - Fee Related JP3036573B2 (en) 1993-11-27 1994-05-13 Tape cassette

Country Status (1)

Country Link
JP (1) JP3036573B2 (en)

Also Published As

Publication number Publication date
JPH07312059A (en) 1995-11-28

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