JPS6336552Y2 - - Google Patents
Info
- Publication number
- JPS6336552Y2 JPS6336552Y2 JP1982020286U JP2028682U JPS6336552Y2 JP S6336552 Y2 JPS6336552 Y2 JP S6336552Y2 JP 1982020286 U JP1982020286 U JP 1982020286U JP 2028682 U JP2028682 U JP 2028682U JP S6336552 Y2 JPS6336552 Y2 JP S6336552Y2
- Authority
- JP
- Japan
- Prior art keywords
- tape
- notch
- fixing piece
- engaging
- web
- 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
Links
- 238000005192 partition Methods 0.000 claims 1
Landscapes
- Storage Of Web-Like Or Filamentary Materials (AREA)
Description
【考案の詳細な説明】
本考案は、テープリール用ハブのテープ固定片
に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape fixing piece for a tape reel hub.
従来、外周上の一部に切欠部を設けて該切欠部
にテープを挿入した上で、テープ固定片を圧入す
ることによりテープを固定するようにしたオーデ
イオまたはビデオ用カセツトテープ等のためのテ
ープリール用ハブとしては、例えば第１図に示し
た如き特開昭54−113318号によるものが知られて
いる。第１図において、１はテープ、２はハブ、
３は切欠部、４はテープ固定片で係合部４ａとフ
ランジ部４ｂから形成されている。先ずテープ１
を切欠部３内に挿入してからテープ固定片４の係
合部４ａを該切欠部３に圧入する場合、二つの係
合部４ａが各々内側に回動するように一旦変形し
て圧入され、その後、これらの係合部４ａが復原
することによりテープ１が図示の如く挾持固定さ
れる。従つて第１図においてテープ１に対して矢
印Ａ方向に張力が加わると、テープ固定片４の係
合部４ａは矢印Ｂ方向に回動しようとするので、
テープがより強く固定されるようになつている。 Conventionally, a tape for audio or video cassette tapes, etc., in which a notch is provided in a part of the outer periphery, the tape is inserted into the notch, and a tape fixing piece is press-fitted to fix the tape. As a reel hub, for example, the one shown in FIG. 1, disclosed in Japanese Patent Application Laid-Open No. 113318/1983, is known. In Figure 1, 1 is a tape, 2 is a hub,
3 is a notch, and 4 is a tape fixing piece, which is formed of an engaging part 4a and a flange part 4b. First tape 1
When inserting the tape into the notch 3 and then press-fitting the engaging part 4a of the tape fixing piece 4 into the notch 3, the two engaging parts 4a are deformed and press-fitted so that they each rotate inward. Thereafter, as these engaging portions 4a return to their original positions, the tape 1 is clamped and fixed as shown in the figure. Therefore, when tension is applied to the tape 1 in the direction of arrow A in FIG. 1, the engaging portion 4a of the tape fixing piece 4 tends to rotate in the direction of arrow B.
The tape is now more firmly fixed.
しかしながら、上記従来構造のものにおいて
は、第１図で点線で示したように、テープ固定片
４をハブ２の切欠部３に嵌合させたとき係合部４
ａが完全に復原せず即ち係合が確実に行なわれず
に座屈状態となつてしまう事態が度々発生してい
た。従つて、テープの早送りまたは巻戻しの際の
ようにハブに強い張力が加わえられたときだけで
なく僅かな衝撃によつてもテープ固定片４が切欠
部３からはずれテープが簡単に抜けてしまうの
で、非常に問題であつた。 However, in the conventional structure described above, when the tape fixing piece 4 is fitted into the notch 3 of the hub 2, the engaging portion 4
A situation has frequently occurred in which the a is not completely restored, that is, the engagement is not reliably performed, resulting in a buckled state. Therefore, not only when a strong tension is applied to the hub during fast forwarding or rewinding of the tape, but also due to a slight impact, the tape fixing piece 4 can come off from the notch 3 and the tape can easily come off. This was a huge problem because it was stored away.
従つて、本考案は上記の点に鑑み、テープ固定
片をハブの切欠部に嵌合させたときに係合部が座
屈状態となることなく確実に切欠部に係合し得る
ようにして、強い張力がテープに加えられても係
合部が容易に該切欠部からはずれないようにした
テープリール用ハブのテープ固定片を提供せんと
するものであつて、以下第２図に示した一実施例
によりこれを説明すれば、１２はハブ、１３はウ
エブ１２の突起１２ａによつて仕切られて画成さ
れる略逆Ｕ字形の切欠部、１４は係合部１４ａと
該係合部１４ａをその内側端部１４a′に近い領域
で支持する可撓性の大きいウエブ部１４ｂと前記
切欠部１３に圧入したときにハブ１２の外周面と
整合する同心円弧状外周面を有するフランジ部１
４ｃとを有するテープ固定片である。前記切欠部
１３は、テープ固定片１４が嵌入されたとき、そ
の係合部１４ａの内側端部１４a′が係合し得る突
起１２ａの両側端部により形成されたアンダーカ
ツト部１３ａを備えている。又、ウエブ部１４ｂ
は、係合部１４ａに較べて薄肉に形成されていて
フランジ部１４ｃの端部より内方の位置で切欠部
１３の開口の略中央部へ突入するようになつてい
る。 Therefore, in view of the above-mentioned points, the present invention is designed so that when the tape fixing piece is fitted into the notch of the hub, the engaging part can reliably engage with the notch without becoming buckled. An object of the present invention is to provide a tape fixing piece for a tape reel hub in which the engaging part does not easily come off from the notch even when strong tension is applied to the tape, as shown in Fig. 2 below. To explain this according to one embodiment, 12 is a hub, 13 is a substantially inverted U-shaped notch partitioned and defined by a protrusion 12a of the web 12, and 14 is an engaging portion 14a and the engaging portion. 14a in a region close to the inner end 14a', and a flange portion 1 having a concentric arcuate outer circumferential surface that aligns with the outer circumferential surface of the hub 12 when press-fitted into the notch 13.
4c. The cutout portion 13 includes an undercut portion 13a formed by both ends of the protrusion 12a with which the inner end 14a' of the engagement portion 14a can engage when the tape fixing piece 14 is inserted. . Also, the web portion 14b
is formed thinner than the engaging portion 14a, and is adapted to protrude into approximately the center of the opening of the notch portion 13 at a position inward from the end of the flange portion 14c.
以上のように構成された本案実施例によれば、
先ずテープ１を切欠部１３内に挿入してからテー
プ固定片１４の係合部１４ａを該切欠部１３に圧
入する場合、テープ固定片１４のウエブ部１４ｂ
が十分な可撓性を有しているので、嵌合の際に係
合部１４ａが内側に回動するように該ウエブ部１
４ｂが薄肉に形成されているため十分に変形する
ことにより、係合部１４ａが切欠部１３のアンダ
ーカツト部１３ａの上方の幅の狭い領域を通過せ
しめられ、その後変形せしめられたウエブ１４ｂ
の復原力によつて係合部１４ａは外側に回動せし
められて、その内側端部１４a′が切欠部１３のア
ンダーカツト部１３ａに係合し得ると共にテープ
を強く挾持する。この際、ウエブ部１４ｂが内側
端部１４a′に近い領域で係合部１４ａを支持して
いるために、嵌合の際に加えられる押圧力のうち
内側端部１４a′に作用する分力が従来構造のテー
プ固定片の場合に比べてウエブ部１４ｂが内側端
部１４a′に近づけられた分だけ大きいので、従来
構造のテープ固定片のように内側端部が安全には
アンダーカツト部に係合せずに浮き上がつてしま
い座屈状態となるようなことなく、係合部１４ａ
の内側端部１４a′の切欠部１３のアンダーカツト
部１３ａへの確実な係合が保証される。また、テ
ープ１に対して矢印Ｃ方向に強い張力が加えられ
た場合には、係合部１４ａがアンダーカツト部１
３ａに確実に係合していて、ウエブ部１４ｂがフ
ランジ部１４ｃの端部より内方の位置に設けられ
ているので前記張力により係合部１４ａに対して
ウエブ部１４ｂのほぼ延長線上に位置する支点Ｏ
に関するモーメントＭが付与され、これにより係
合部１４ａは外側へ回動して切欠部１３の内側壁
と当接せしめらると共に該係合部１４ａの内側端
部１４a′はアンダーカツト部１３ａと当接せしめ
られるので、係合部１４ａは切欠部１３への食い
つきの度合を増して、その係合が該張力によりは
ずれてしまうようなことはなく、逆にテープ１に
対する挾持力が増大せしめられる。 According to the present embodiment configured as above,
When first inserting the tape 1 into the notch 13 and then press-fitting the engaging part 14a of the tape fixing piece 14 into the notch 13, the web part 14b of the tape fixing piece 14
has sufficient flexibility, so that the web portion 1
Since the web 4b is thin, it is sufficiently deformed so that the engaging portion 14a passes through the narrow region above the undercut portion 13a of the notch 13, and the web 14b is then deformed.
The restoring force causes the engaging portion 14a to rotate outward, so that its inner end 14a' can engage with the undercut portion 13a of the notch 13 and firmly clamp the tape. At this time, since the web portion 14b supports the engaging portion 14a in a region close to the inner end 14a', a component of the pressing force applied at the time of fitting that acts on the inner end 14a' is reduced. The web portion 14b is moved closer to the inner end 14a' and is larger than in the case of a tape fixing piece with a conventional structure, so that the inner end cannot be safely engaged with the undercut portion like a tape fixing piece with a conventional structure. The engaging portion 14a is not aligned and does not come up and become buckled.
A reliable engagement of the notch 13 of the inner end 14a' of the undercut 13a is ensured. Further, when a strong tension is applied to the tape 1 in the direction of arrow C, the engaging portion 14a is connected to the undercut portion 1.
3a, and since the web portion 14b is provided at a position inward from the end of the flange portion 14c, the tension causes the web portion 14b to be positioned substantially on the extension line of the web portion 14b relative to the engaging portion 14a. fulcrum O
A moment M is applied to the engaging part 14a, and as a result, the engaging part 14a rotates outward and comes into contact with the inner wall of the cutout part 13, and the inner end part 14a' of the engaging part 14a comes into contact with the undercut part 13a. Since the engagement portion 14a is brought into contact with the notch portion 13, the degree of engagement of the engagement portion 14a with the notch portion 13 is increased, and the engagement is prevented from being disengaged due to the tension, and on the contrary, the clamping force against the tape 1 is increased. .
上述の如く本考案によれば、テープ固定片の係
合部が、その内側端部に近い領域で可撓性の大き
いウエブ部により支持されるように構成したか
ら、嵌合の際にウエブ部が十分に変形して容易に
係合部が圧入せしめられ、その後変形せしめられ
たウエブの復原力により係合部の内側端部が確実
に切欠部に設けられたアンダーカツト部に係合し
得ると共にテープを強く挾持するので、係合部の
内側端部が完全にはアンダーカツト部に係合せず
に浮き上がつて座屈状態となるようなことがな
く、而も比較的強い張力がテープに加えられても
テープ固定片がハブの切欠部からはずれてテープ
が抜けてしまうようなことがないという効果があ
る。 As described above, according to the present invention, since the engaging part of the tape fixing piece is supported by the highly flexible web part in the area near the inner end thereof, the web part is sufficiently deformed so that the engaging part is easily press-fitted, and then the restoring force of the deformed web allows the inner end of the engaging part to reliably engage with the undercut part provided in the notch. Since the tape is strongly held together with the tape, the inner end of the engaging part does not completely engage with the undercut part and does not come up and become buckled, and the relatively strong tension is applied to the tape. Even if the tape fixing piece is added to the hub, there is no possibility that the tape will come off due to the tape fixing piece coming off from the notch of the hub.
第１図は従来のテープ固定片を装着したテープ
リール用ハブの一部を示す側面図、第２図は本考
案によるテープ固定片を装着したテープリール用
ハブの一部を示す側面図である。
……テープ、１２……ハブ、１３……切欠部、
１３ａ……アンダーカツト部、１４……テープ固
定片、１４ａ……係合部、１４ｂ……ウエブ部。
FIG. 1 is a side view showing a part of a tape reel hub equipped with a conventional tape fixing piece, and FIG. 2 is a side view showing a part of a tape reel hub equipped with a tape fixing piece according to the present invention. . ...Tape, 12...Hub, 13...Notch,
13a...undercut part, 14...tape fixing piece, 14a...engaging part, 14b...web part.
Claims (1)
内に磁気テープを圧着せしめる卵形の係合部と、
上記切欠部を画成すべくそれらを仕切る両側端部
にアンダーカツト部を有する突起との間に上記磁
気テープを挾持する円弧状のフランジ部と、該フ
ランジ部と上記係合部とを連結するウエブ部とか
ら構成され、上記係合部の外側面が上記切欠部の
Ｕ字形の内側壁と当接すると共に上記係合部の内
側端部が上記突起の上記アンダーカツト部と当接
することにより上記磁気テープを上記ハブへ固定
せしめるようにしたテープ固定片において、上記
ウエブ部は上記係合部に較べて薄肉であると共に
上記フランジ部の端部より内方の位置で上記切欠
部の開口の略中央部へ突入するようになつている
ことを特徴とするテープ固定片。 an egg-shaped engagement portion that presses the magnetic tape into a substantially inverted U-shaped notch formed on the circumferential surface of the hub;
an arcuate flange portion that holds the magnetic tape between protrusions having undercut portions at both ends that partition the cutout portions to define the cutout portion; and a web that connects the flange portion and the engagement portion. The outer surface of the engaging portion abuts the U-shaped inner wall of the notch, and the inner end of the engaging portion abuts the undercut portion of the protrusion, so that the magnetic In the tape fixing piece for fixing the tape to the hub, the web portion is thinner than the engaging portion and is located at a position inward from the end of the flange portion, approximately at the center of the opening of the notch portion. A tape fixing piece characterized by being designed to protrude into the part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028682U JPS58125293U (en) | 1982-02-16 | 1982-02-16 | tape fixing piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028682U JPS58125293U (en) | 1982-02-16 | 1982-02-16 | tape fixing piece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58125293U JPS58125293U (en) | 1983-08-25 |
| JPS6336552Y2 true JPS6336552Y2 (en) | 1988-09-28 |
Family
ID=30032457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2028682U Granted JPS58125293U (en) | 1982-02-16 | 1982-02-16 | tape fixing piece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58125293U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0235734Y2 (en) * | 1985-04-26 | 1990-09-28 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS562178B2 (en) * | 1976-01-12 | 1981-01-19 |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5917033Y2 (en) * | 1979-06-15 | 1984-05-18 | ソニー株式会社 | Cassette tape reel hub |
| JPS56119188U (en) * | 1980-02-08 | 1981-09-11 |
-
1982
- 1982-02-16 JP JP2028682U patent/JPS58125293U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS562178B2 (en) * | 1976-01-12 | 1981-01-19 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58125293U (en) | 1983-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6336552Y2 (en) | ||
| US3990733A (en) | Hub for magnetic tape | |
| US4341358A (en) | Hub for magnetic tape | |
| US4181272A (en) | Tape cassette reel | |
| US4436253A (en) | Device for clamping one terminal end of a tape in a tape reel | |
| JPH06259923A (en) | Tape reel | |
| JPS5923262Y2 (en) | Cassette tape reel hub | |
| JPS6219649Y2 (en) | ||
| US4165051A (en) | Tape reel | |
| JP2593068Y2 (en) | Tape reel for tape cassette | |
| JPS6327346Y2 (en) | ||
| JPH0235734Y2 (en) | ||
| JPH0152832B2 (en) | ||
| JPS5824307Y2 (en) | tape reel | |
| JPH11190324A (en) | Cramp for bolt | |
| JP2541024Y2 (en) | Tape reel | |
| JPS6273Y2 (en) | ||
| JPS6325574Y2 (en) | ||
| JPS5948466B2 (en) | How to fix the tape with a clamp | |
| JPS6327326Y2 (en) | ||
| JP3444529B2 (en) | Corrugated tube | |
| JPS5847591Y2 (en) | magnetic tape cartridge | |
| JPS5935898Y2 (en) | tape reel | |
| KR800000868Y1 (en) | Tape reel | |
| JP2563054Y2 (en) | Tape clamp structure of tape reel |