JP2006134548A

JP2006134548A - Recording tape cartridge

Info

Publication number: JP2006134548A
Application number: JP2005054785A
Authority: JP
Inventors: Kazuo Hiraguchi; 和男平口
Original assignee: Fuji Photo Film Co Ltd
Current assignee: Fujifilm Holdings Corp
Priority date: 2004-10-04
Filing date: 2005-02-28
Publication date: 2006-05-25
Anticipated expiration: 2025-02-28
Also published as: JP4369881B2

Abstract

PROBLEM TO BE SOLVED: To provide a recording tape cartridge which is prevented from occurrence of fault even if an impact such as falling is imparted, and which is excellent in shock resistance. SOLUTION: The recording tape cartridge 10 comprising; a case 12 for housing rotatably a single reel 18 on which a recording tape T is wound; an opening 20 which is formed in a front surface 12A and a side surface 12B adjacent to a corner part 12C of the case 12, and which pulls out a leader member 22 attached to an end part of the recording tape T; and a door 30 for opening/closing the opening 20 by turning, the door 30 is structured so as to be able to cover the corner part 12C of the case 12 including a a top surface 14A and/or a bottom surface 16A when the door closes the opening 20. COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、主にコンピューター等の記録再生媒体として使用される磁気テープ等の記録テープが巻装された単一のリールをケース内に収容してなる記録テープカートリッジに関する。 The present invention relates to a recording tape cartridge in which a single reel around which a recording tape such as a magnetic tape used mainly as a recording / reproducing medium of a computer or the like is wound is accommodated in a case.

従来から、コンピューター等のデータ記録再生媒体として使用されている磁気テープ等の記録テープを単一のリールに巻装し、そのリールをケース内に収容してなる記録テープカートリッジが知られている。このような記録テープカートリッジは、略矩形箱状のケースを有している。例えば図１６で示すように、記録テープカートリッジ１００のケース１０２は、略トレイ状の上ケース１０４と下ケース１０６とが、互いの周壁１０４Ａ、１０６Ａを当接させた状態で接合されて構成されている。そして、そのケース１０２の内部に、記録テープＴを巻装した単一のリール１０８が回転可能に収容されている（例えば、特許文献１参照）。 2. Description of the Related Art Conventionally, there is known a recording tape cartridge in which a recording tape such as a magnetic tape used as a data recording / reproducing medium for a computer or the like is wound around a single reel and the reel is accommodated in a case. Such a recording tape cartridge has a substantially rectangular box-shaped case. For example, as shown in FIG. 16, the case 102 of the recording tape cartridge 100 is configured by joining a substantially tray-like upper case 104 and lower case 106 with their peripheral walls 104A and 106A in contact with each other. Yes. A single reel 108 around which the recording tape T is wound is rotatably accommodated in the case 102 (see, for example, Patent Document 1).

また、記録テープＴの端部には、リーダーテープ等のリーダー部材１１０が固着されている（例えば、特許文献２参照）。このリーダー部材１１０は、ドライブ装置側の引出部材（図示省略）によって引き出されるが、その引出部材は、記録テープカートリッジ１００を装填する装填口の両側部に設けられることが多い。そのため、記録テープカートリッジ１００に形成する開口１１２は、ケース１０２のコーナー部１０２Ｃに形成されることが多い。また、そのコーナー部１０２Ｃに開口１１２が無くても、その開口１１２を開閉するドア１１４の支軸１１６等、記録テープカートリッジ１００の機能上重要な部位が、そのコーナー部１０２Ｃ付近に存在していることがある。
米国特許第４５５５０７７号明細書米国特許第４５７２４６０号明細書 A leader member 110 such as a leader tape is fixed to the end of the recording tape T (see, for example, Patent Document 2). The leader member 110 is pulled out by a pulling member (not shown) on the drive device side, and the pulling member is often provided on both sides of a loading port into which the recording tape cartridge 100 is loaded. Therefore, the opening 112 formed in the recording tape cartridge 100 is often formed in the corner portion 102 C of the case 102. Even if the corner portion 102C does not have the opening 112, a portion important for the function of the recording tape cartridge 100 such as the support shaft 116 of the door 114 that opens and closes the opening 112 exists near the corner portion 102C. Sometimes.
U.S. Pat. No. 4,550,077 U.S. Pat. No. 4,572,460

ところで、そのコーナー部１０２Ｃは、記録テープカートリッジ１００を落下させたときなど、衝撃を受けた場合に最も集中応力を受けやすい箇所である。コーナー部１０２Ｃに集中応力を受けると、そのコーナー部１０２Ｃには、局所的な永久変形（潰れる、曲がる、欠けるなど）が起き、ドライブ装置への装填不能、記録テープＴの引出不能、開口１１２を開閉するドア１１４の開閉不能等の問題が起きる。 By the way, the corner portion 102C is the portion most easily subjected to concentrated stress when subjected to an impact such as when the recording tape cartridge 100 is dropped. When concentrated stress is applied to the corner portion 102C, local permanent deformation (crushed, bent, chipped, etc.) occurs in the corner portion 102C, the drive device cannot be loaded, the recording tape T cannot be pulled out, and the opening 112 is formed. Problems such as inability to open and close the door 114 to open and close occur.

また、永久変形が起きなくても、一時的な撓み変形、即ち上ケース１０４の周壁１０４Ａと下ケース１０６の周壁１０６Ａが互いに離間するような弾性変形が起きることにより、リーダーテープ等のリーダー部材１１０が、ケース１０２内の保持位置から外れたり、上ケース１０４の周壁１０４Ａと下ケース１０６の周壁１０６Ａの間に挟まれたり、ドア１１４が開いた場合には、ケース１０２外へ飛び出したりすることがあった。 Further, even if permanent deformation does not occur, temporary bending deformation, that is, elastic deformation that causes the peripheral wall 104A of the upper case 104 and the peripheral wall 106A of the lower case 106 to be separated from each other occurs, so that the leader member 110 such as a leader tape. However, when the door is removed from the holding position in the case 102, sandwiched between the peripheral wall 104A of the upper case 104 and the peripheral wall 106A of the lower case 106, or when the door 114 is opened, the case 102 may jump out of the case 102. there were.

また、一時的な撓み変形を防止するために、コーナー部１０２Ｃ付近の上ケース１０４の周壁１０４Ａと下ケース１０６の周壁１０６Ａを溶着したり、ビス止めしたりすることも考えられたが、この場合には、逆に、落下時に受けた衝撃力（エネルギー）の逃げ道がなくなるので、永久変形を助長する結果になっていた。 In addition, in order to prevent temporary bending deformation, it is considered that the peripheral wall 104A of the upper case 104 and the peripheral wall 106A of the lower case 106 near the corner portion 102C are welded or screwed. On the other hand, since the escape path of the impact force (energy) received during the fall is eliminated, the result is that permanent deformation is promoted.

そこで、本発明は、落下等によって衝撃が加えられても変形等のトラブルが発生し難い、耐衝撃性に優れた記録テープカートリッジを得ることを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a recording tape cartridge that is unlikely to cause troubles such as deformation even when an impact is applied by dropping or the like and that has excellent impact resistance.

上記の目的を達成するために、本発明に係る請求項１に記載の記録テープカートリッジは、記録テープが巻装された単一のリールを回転可能に収容するケースと、前記ケースのコーナー部付近に形成され、前記記録テープの端部に取り付けられたリーダー部材を引き出すための開口と、を備えた記録テープカートリッジにおいて、前記ケースのコーナー部を上面及び／又は下面を含んで被覆するカバー部材を回動可能に設けたことを特徴としている。 In order to achieve the above object, a recording tape cartridge according to claim 1 of the present invention includes a case for rotatably accommodating a single reel on which a recording tape is wound, and a vicinity of a corner portion of the case. And a cover member that covers the corner portion of the case including the upper surface and / or the lower surface thereof. It is characterized in that it can be rotated.

これによれば、開口が形成されたケースのコーナー部付近に落下等によって衝撃が加えられても、そのコーナー部は上面及び／又は下面を含んでカバー部材によって被覆されているので、破損などの永久変形は起きない。また、その衝撃によってコーナー部付近が一時的に撓み変形しようとしても、カバー部材はケースの上面及び下面を被覆しているので、その変形はカバー部材によって抑止される。したがって、リーダー部材がその保持位置から脱落するような不具合は起きない。 According to this, even if an impact is applied to the vicinity of the corner portion of the case in which the opening is formed due to dropping or the like, the corner portion is covered with the cover member including the upper surface and / or the lower surface. Permanent deformation does not occur. Even when the vicinity of the corner portion is temporarily bent and deformed by the impact, the cover member covers the upper surface and the lower surface of the case, so that the deformation is suppressed by the cover member. Therefore, the trouble that the leader member falls off from the holding position does not occur.

また、本発明に係る請求項４に記載の記録テープカートリッジは、記録テープが巻装された単一のリールを回転可能に収容するケースと、前記ケースのコーナー部付近に形成され、前記記録テープの端部に取り付けられたリーダー部材を引き出すための開口と、前記開口を開閉するドアと、を備えた記録テープカートリッジにおいて、前記ドアは、前記開口閉塞時に、前記ケースのコーナー部を上面及び／又は下面を含んで被覆するように構成されていることを特徴としている。 According to a fourth aspect of the present invention, there is provided a recording tape cartridge according to the present invention, wherein the recording tape is formed in a case that rotatably accommodates a single reel on which the recording tape is wound, and in the vicinity of a corner portion of the case. In a recording tape cartridge comprising an opening for pulling out a leader member attached to an end of the recording medium, and a door for opening and closing the opening, the door opens the corner portion of the case on the upper surface and / or when the opening is closed. Or it is characterized by being comprised so that a lower surface may be covered.

これによれば、開口が形成されたケースのコーナー部付近に落下等によって衝撃が加えられても、その開口を開閉するドアは、ケースのコーナー部を上面及び／又は下面を含んで被覆しているので、そのコーナー部付近に破損などの永久変形は起きない。また、その衝撃によってコーナー部付近が一時的に撓み変形しようとしても、ドアはケースの上面及び下面を被覆しているので、その変形はドアによって抑止される。したがって、リーダー部材がその保持位置から脱落するような不具合は起きない。 According to this, even if an impact is applied by dropping or the like near the corner portion of the case where the opening is formed, the door that opens and closes the opening covers the corner portion of the case including the upper surface and / or the lower surface. Therefore, permanent deformation such as breakage does not occur near the corner. Further, even if the vicinity of the corner portion is temporarily bent and deformed by the impact, the door covers the upper surface and the lower surface of the case, so that the deformation is suppressed by the door. Therefore, the trouble that the leader member falls off from the holding position does not occur.

また、本発明に係る請求項８に記載の記録テープカートリッジは、記録テープが巻装された単一のリールを回転可能に収容するケースと、前記ケースのコーナー部に隣接する前面と側面に形成され、前記記録テープの端部に取り付けられたリーダー部材を引き出すための開口と、回動して前記開口を開閉するドアと、を備えた記録テープカートリッジにおいて、前記ドアは、前記開口閉塞時に、前記ケースのコーナー部を上面及び／又は下面を含んで被覆するように構成されていることを特徴としている。 The recording tape cartridge according to claim 8 of the present invention is formed on a case that rotatably accommodates a single reel on which the recording tape is wound, and on a front surface and a side surface adjacent to a corner portion of the case. And a recording tape cartridge comprising: an opening for pulling out a leader member attached to an end of the recording tape; and a door that pivots to open and close the opening. The corner portion of the case is configured to cover the upper surface and / or the lower surface.

これによれば、落下等によってケースのコーナー部に衝撃が加えられても、そのコーナー部に隣接する前面と側面に形成された開口を開閉するドアは、ケースのコーナー部を上面及び／又は下面を含んで被覆しているので、そのコーナー部付近に破損などの永久変形は起きない。また、その衝撃によってコーナー部が一時的に撓み変形しようとしても、ドアはケースの上面及び下面を被覆しているので、その変形はドアによって抑止される。したがって、リーダー部材がその保持位置から脱落するような不具合は起きない。 According to this, even if an impact is applied to the corner portion of the case due to dropping or the like, the door that opens and closes the opening formed on the front surface and the side surface adjacent to the corner portion has the corner portion of the case on the upper surface and / or the lower surface. Since it is covered with, permanent deformation such as breakage does not occur near the corner portion. Even if the corner portion is temporarily bent and deformed by the impact, the door covers the upper surface and the lower surface of the case, and the deformation is suppressed by the door. Therefore, the trouble that the leader member falls off from the holding position does not occur.

以上のように、本発明によれば、落下等によって衝撃が加えられても変形等のトラブルが発生し難い、耐衝撃性に優れた記録テープカートリッジを提供することができる。 As described above, according to the present invention, it is possible to provide a recording tape cartridge excellent in impact resistance, in which troubles such as deformation hardly occur even when an impact is applied by dropping or the like.

以下、本発明の実施の形態を図面に示す実施例を基に詳細に説明する。なお、説明の便宜上、記録テープカートリッジのドライブ装置への装填方向を矢印Ａで表し、それを前方向とする。また、矢印Ｂを左方向とし、これらを基準に前後・左右・上下の表現をする。 DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail based on examples shown in the drawings. For convenience of explanation, the loading direction of the recording tape cartridge into the drive device is indicated by an arrow A, which is the forward direction. Moreover, the arrow B is set to the left direction, and the front / rear, left / right, and upper / lower directions are expressed based on these.

図１で示すように、記録テープカートリッジ１０は、略矩形箱状のケース１２を有している。このケース１２は、合成樹脂製の上ケース１４と下ケース１６とが、互いの周壁１４Ｂ、１６Ｂを当接させた状態で超音波溶着又はねじ止め等により接合されて構成されている。なお、上ケース１４の上面１４Ａにはラベルエリア４６が形成されている。 As shown in FIG. 1, the recording tape cartridge 10 has a substantially rectangular box-shaped case 12. The case 12 is configured by joining an upper case 14 and a lower case 16 made of synthetic resin by ultrasonic welding or screwing in a state where the peripheral walls 14B and 16B are in contact with each other. A label area 46 is formed on the upper surface 14A of the upper case 14.

また、図２で示すように、ケース１２の内部には単一のリール１８が回動可能に収容されている。リール１８には、情報記録再生媒体としての磁気テープ等の記録テープＴが巻装されている。また、リール１８の下面にはリールギア１９が環状に形成されており、下ケース１６に穿設されたギア開口４４から露出するようになっている（図１０（Ｂ）等参照）。 Further, as shown in FIG. 2, a single reel 18 is rotatably accommodated in the case 12. A recording tape T such as a magnetic tape as an information recording / reproducing medium is wound around the reel 18. Further, a reel gear 19 is formed in an annular shape on the lower surface of the reel 18 so as to be exposed from a gear opening 44 formed in the lower case 16 (see FIG. 10B, etc.).

記録テープカートリッジ１０の左前方側のコーナー部１２Ｃ付近には、リール１８に巻装された記録テープＴを外部に引き出すための開口２０が形成されている。すなわち、図３でも示すように、コーナー部１２Ｃに隣接する前面１２Ａと左側面１２Ｂとに跨って開口２０が形成され、その開口２０から記録テープＴの端部に固着されたリーダーテープ２２が引き出されるようになっている。 In the vicinity of the corner portion 12C on the left front side of the recording tape cartridge 10, an opening 20 for drawing out the recording tape T wound around the reel 18 is formed. That is, as shown also in FIG. 3, an opening 20 is formed across the front surface 12A and the left side surface 12B adjacent to the corner portion 12C, and the leader tape 22 fixed to the end of the recording tape T is pulled out from the opening 20. It is supposed to be.

ここで、本発明におけるコーナー部とは、略矩形箱状ケース１２の周壁１４Ｂ、１６Ｂにおいて、平面視で略直角又は鈍角に交わる稜線部分を指す。したがって、この場合のコーナー部１２Ｃとは、前面１２Ａと左側面１２Ｂとが平面視で略直角に交わっている稜線部分を指している。 Here, the corner part in this invention refers to the ridgeline part which cross | intersects a substantially right angle or an obtuse angle in planar view in the surrounding walls 14B and 16B of the substantially rectangular box-shaped case 12. FIG. Therefore, the corner portion 12C in this case refers to a ridge line portion where the front surface 12A and the left side surface 12B intersect at a substantially right angle in plan view.

また、開口２０が形成されるコーナー部１２Ｃ付近とは、コーナー部１２Ｃや、コーナー部１２Ｃに隣接又は近傍の前面１２Ａ及び／又は左側面１２Ｂ、もしくはコーナー部１２Ｃに隣接又は近傍の前面１２Ａ及び／又は左側面１２Ｂと少なくとも上面１４Ａ、下面１６Ａのどちらか一方を指す。なお、開口２０は、右前方側のコーナー部１２Ｄ付近に設けられる場合もある。 Further, the vicinity of the corner portion 12C where the opening 20 is formed refers to the corner portion 12C, the front surface 12A and / or the left side surface 12B adjacent to or near the corner portion 12C, or the front surface 12A adjacent to or near the corner portion 12C and / or Alternatively, the left side surface 12B and at least one of the upper surface 14A and the lower surface 16A are indicated. The opening 20 may be provided in the vicinity of the corner portion 12D on the right front side.

リーダーテープ２２は、ドライブ装置側の引出部材（図示省略）が記録テープＴを引き出すために係合する被引出部材であり、その先端に引出部材が係合する係合孔２２Ａが穿設されている。また、リーダーテープ２２の先端近傍には、図２、図３で示すように、上下方向に向かって張り出す張出部２２Ｂが形成されている。この張出部２２Ｂが、開口２０の内側で、かつ左側面１２Ｂ側の上ケース１４と下ケース１６の内面に形成された係合溝部２４に係止されることにより、リーダーテープ２２がケース１２内に保持される。 The leader tape 22 is a drawn member that is engaged with a drawing member (not shown) on the drive device side to draw out the recording tape T, and an engagement hole 22A that the drawing member engages is formed at the tip of the leader tape 22. Yes. Further, as shown in FIGS. 2 and 3, an overhanging portion 22 B is formed in the vicinity of the tip of the leader tape 22 so as to project in the vertical direction. The overhanging portion 22B is engaged with the engagement groove portion 24 formed on the inner surface of the upper case 14 and the lower case 16 on the inner side of the opening 20 and on the left side surface 12B side. Held in.

また、その開口２０は、記録テープカートリッジ１０の不使用時には、ドア３０によって閉塞される。このドア３０は、開口２０と同じ形状及び大きさになるように、平面視略「Ｌ」字状に形成された閉塞部材３２と（図４参照）、その閉塞部材３２に一体に接合され、コーナー部１２Ｃと、コーナー部１２Ｃに隣接又は近傍のケース１２の前面１２Ａ、左側面１２Ｂ、上面１４Ａ、下面１６Ａを外方から被覆するカバー部材３４とで構成されている。 The opening 20 is closed by a door 30 when the recording tape cartridge 10 is not used. The door 30 is integrally joined to the closing member 32 (see FIG. 4) formed in a substantially “L” shape in plan view so as to have the same shape and size as the opening 20. The corner portion 12C is configured by a cover member 34 that covers the front surface 12A, the left side surface 12B, the upper surface 14A, and the lower surface 16A of the case 12 adjacent to or near the corner portion 12C from the outside.

このように、カバー部材３４が、コーナー部１２Ｃを上面１４Ａ及び下面１６Ａを含んで被覆すると、落下衝撃を受けても、その箇所における破損等の永久変形が防止される。更に、このカバー部材３４は、コーナー部１２Ｃを含み、ケース１２の上面１４Ａ及び下面１６Ａを挟むように被覆しているので、落下衝撃を受けても、その箇所における一時的な撓み変形、即ち上ケース１４の周壁１４Ｂと下ケース１６の周壁１６Ｂが互いに離間する撓み変形が抑止される。つまり、このカバー部材３４は、開口２０を閉塞するためのものではなく、コーナー部１２Ｃの補強をするためのものである。 As described above, when the cover member 34 covers the corner portion 12C including the upper surface 14A and the lower surface 16A, even if the cover member 34 receives a drop impact, permanent deformation such as breakage at the portion is prevented. Further, since the cover member 34 includes the corner portion 12C and covers the case 12 so as to sandwich the upper surface 14A and the lower surface 16A of the case 12, even if it is subjected to a drop impact, the cover member 34 temporarily deforms, i.e. The bending deformation in which the peripheral wall 14B of the case 14 and the peripheral wall 16B of the lower case 16 are separated from each other is suppressed. That is, the cover member 34 is not for closing the opening 20 but for reinforcing the corner portion 12C.

なお、閉塞部材３２とカバー部材３４はそれぞれ樹脂で成形してもよいし、ＳＵＳ等の金属で成形してもよい。金属で成形する場合は、プレス（深絞りを含む）、ダイキャスト等で成形すればよく、その厚さは０．３ｍｍ〜０．５ｍｍであることが望ましい。また、閉塞部材３２とカバー部材３４のどちらか一方を樹脂、他方を金属で成形してもよい。一方を樹脂、他方を金属で成形する場合、両者の接合方法は、接着、かしめ、嵌め込み、インサート成形、アウトサート成形等、どのような接合方法でもよい。 The closing member 32 and the cover member 34 may be formed of resin, or may be formed of metal such as SUS. In the case of forming with metal, it may be formed by press (including deep drawing), die casting, or the like, and the thickness is preferably 0.3 mm to 0.5 mm. Further, either one of the closing member 32 and the cover member 34 may be molded with resin and the other with metal. When one is molded with a resin and the other is molded with a metal, the joining method may be any joining method such as adhesion, caulking, fitting, insert molding, or outsert molding.

また、図３で示すように、そのドア３０の回動支点となる支軸２６が、上ケース１４及び下ケース１６にそれぞれ突設されている。この支軸２６は、上ケース１４側が円筒状のボス２６Ａになっており、下ケース１６側が円柱状のボス２６Ｂになっている。そして、下ケース１６側のボス２６Ｂの先端（上端）が、上ケース１４側のボス２６Ａに嵌入することで、支軸２６が構成されるようになっている。したがって、ボス２６Ｂの径がボス２６Ａの径よりも若干小さくなっている。 Further, as shown in FIG. 3, a support shaft 26 serving as a pivot point of the door 30 is provided to project from the upper case 14 and the lower case 16. The support shaft 26 has a cylindrical boss 26A on the upper case 14 side and a columnar boss 26B on the lower case 16 side. The tip (upper end) of the boss 26B on the lower case 16 side is fitted into the boss 26A on the upper case 14 side, whereby the support shaft 26 is configured. Therefore, the diameter of the boss 26B is slightly smaller than the diameter of the boss 26A.

また、ドア３０の閉塞部材３２の右端部近傍には、その支軸２６に遊嵌される回転摺動部３６が設けられている。この回転摺動部３６は、閉塞部材３２の内面側の上下両端部と中途部とからそれぞれ延設され、各回転摺動部３６に貫通孔３６Ａが穿設されている（図６（Ａ）参照）。したがって、この貫通孔３６Ａに支軸２６が挿通されることにより、ドア３０が回動可能に支持される。 Further, in the vicinity of the right end portion of the closing member 32 of the door 30, a rotary sliding portion 36 that is loosely fitted to the support shaft 26 is provided. The rotary sliding portions 36 are respectively extended from the upper and lower end portions and the midway portion on the inner surface side of the closing member 32, and through holes 36A are formed in the rotary sliding portions 36 (FIG. 6A). reference). Therefore, the door 30 is rotatably supported by inserting the support shaft 26 into the through hole 36A.

また、上端部の回転摺動部３６の上面と、下端部の回転摺動部３６の下面には、それぞれ貫通孔３６Ａ周りに環状凸部３７が形成されている。そして、この環状凸部３７が、それぞれ上ケース１４と下ケース１６に接触することにより、閉塞部材３２の上端縁と上ケース１４との間、及び閉塞部材３２の下端縁と下ケース１６との間に、それぞれ０．３ｍｍ〜０．５ｍｍ程度の隙間が形成されるようにしている。 An annular convex portion 37 is formed around the through hole 36A on the upper surface of the rotary sliding portion 36 at the upper end and the lower surface of the rotary sliding portion 36 at the lower end. The annular protrusions 37 come into contact with the upper case 14 and the lower case 16, respectively, so that the gap between the upper end edge of the closing member 32 and the upper case 14 and the lower end edge of the closing member 32 and the lower case 16. A gap of about 0.3 mm to 0.5 mm is formed between them.

このような構成によれば、上ケース１４及び下ケース１６と接触するのは、環状凸部３７だけとなり、閉塞部材３２の上下両端縁は、それぞれ上ケース１４と下ケース１６に対し、常に非接触状態となるので、ドア３０（閉塞部材３２）の上ケース１４及び下ケース１６に対する摺動抵抗が低減される。なお、閉塞部材３２とカバー部材３４が、樹脂と金属で成形される場合、少なくともこの回転摺動部３６及び環状凸部３７は、ＰＯＭ等のオレフィン系樹脂で成形することが望ましい。これによれば、ドア３０（閉塞部材３２）の上ケース１４及び下ケース１６に対する摺動抵抗を更に低減できるとともに、支軸２６に対する摺動抵抗も低減できる。 According to such a configuration, only the annular convex portion 37 is in contact with the upper case 14 and the lower case 16, and the upper and lower end edges of the closing member 32 are not always in contact with the upper case 14 and the lower case 16, respectively. Since it will be in a contact state, the sliding resistance with respect to the upper case 14 and the lower case 16 of the door 30 (blocking member 32) will be reduced. When the closing member 32 and the cover member 34 are formed of resin and metal, it is desirable that at least the rotary sliding portion 36 and the annular convex portion 37 are formed of an olefin resin such as POM. According to this, the sliding resistance with respect to the upper case 14 and the lower case 16 of the door 30 (closing member 32) can be further reduced, and the sliding resistance with respect to the support shaft 26 can also be reduced.

また、この支軸２６には、図４で示すように、ドア３０を常時開口２０の閉塞方向へ付勢するトーションばね２８の巻回部２８Ａが挿嵌される。すなわち、このトーションばね２８の巻回部２８Ａは、下端部の回転摺動部３６と中途部の回転摺動部３６の間に保持された状態で、径が細い方のボス２６Ｂに挿嵌される。そして、トーションばね２８の一方の端部２８Ｂは、ケース１２のビスボス２５（この場合は下ケース１６に突設されたビスボス）に、他方の端部２８Ｃは、閉塞部材３２の右後端部の内面にそれぞれ係止される。 Further, as shown in FIG. 4, a winding portion 28 A of a torsion spring 28 that constantly biases the door 30 in the closing direction of the opening 20 is inserted into the support shaft 26. That is, the winding portion 28A of the torsion spring 28 is inserted into the boss 26B having a smaller diameter while being held between the rotary sliding portion 36 at the lower end and the rotary sliding portion 36 at the midway portion. The One end 28B of the torsion spring 28 is on the screw boss 25 of the case 12 (in this case, a screw boss protruding from the lower case 16), and the other end 28C is on the right rear end of the closing member 32. Locked to the inner surface.

このように、ビスボス２５が支軸２６とは独立して設けられ、かつ、その支軸２６の近傍に配置されていると、落下時の衝撃力はビスボス２５で受け止められるので、支軸２６にはその衝撃力が伝達され難い。したがって、支軸２６の変形や破損等が防止される。また、トーションばね２８の巻回部２８Ａが、回転摺動部３６の間に配置されると、その回転摺動部３６が、上記したＰＯＭ等のオレフィン系樹脂で成形された場合には、ＰＣ等の樹脂で成形されるケース１２よりも削られ難い。つまり、トーションばね２８の巻回部２８Ａが、ドア３０の回動によって摺動しても、摩耗粉等が発生し難い。したがって、記録テープＴへの悪影響がない。 Thus, when the screw boss 25 is provided independently of the support shaft 26 and is disposed in the vicinity of the support shaft 26, the impact force at the time of dropping is received by the screw boss 25. The impact force is difficult to be transmitted. Therefore, deformation or breakage of the support shaft 26 is prevented. Further, when the winding portion 28A of the torsion spring 28 is disposed between the rotary sliding portions 36, when the rotary sliding portion 36 is molded from an olefin resin such as POM described above, the PC It is harder to be cut than the case 12 formed of resin such as. That is, even if the winding portion 28 A of the torsion spring 28 slides due to the rotation of the door 30, wear powder or the like is hardly generated. Therefore, there is no adverse effect on the recording tape T.

以上、何れにしても、このような構成により、ドア３０を開放させるときには、ドライブ装置側の開閉部材（図示省略）が、前面１２Ａ側から相対的に進入し、閉塞部材３２の右端部を後方に向かって押圧する。すると、ドア３０は、支軸２６を中心にトーションばね２８の付勢力に抗して、図４で示すように、平面視で時計回りに回動し、開口２０を開放する。 In any case, with such a configuration, when the door 30 is opened, an opening / closing member (not shown) on the drive device side relatively enters from the front surface 12A side, and the right end portion of the closing member 32 is rearward. Press toward. Then, the door 30 rotates clockwise in plan view as shown in FIG. 4 against the urging force of the torsion spring 28 around the support shaft 26 to open the opening 20.

また、図２乃至図５で示すように、ケース１２のコーナー部１２Ｃ付近、即ち上面１４Ａ、下面１６Ａ、前面１２Ａ、左側面１２Ｂには、カバー部材３４の形状に合致した凹面部４０が形成されている。この凹面部４０の深さＤは、ドア３０が開口２０を閉塞したときに、そのカバー部材３４が少なくとも上面１４Ａ及び下面１６Ａ及び左側面１２ＢよりもＬ＝０．０５ｍｍ以上低くなるように（凹になるように）形成されている。このような構成にすると、記録テープカートリッジ１０をドライブ装置へ装填するときに、そのカバー部材３４が装填口に引っ掛かるような不具合が生じない。 Further, as shown in FIGS. 2 to 5, a concave surface portion 40 that matches the shape of the cover member 34 is formed in the vicinity of the corner portion 12C of the case 12, that is, the upper surface 14A, the lower surface 16A, the front surface 12A, and the left side surface 12B. ing. The depth D of the concave surface portion 40 is such that when the door 30 closes the opening 20, the cover member 34 is at least L = 0.05 mm lower than the upper surface 14A, the lower surface 16A, and the left side surface 12B (recessed). Is formed). With such a configuration, when the recording tape cartridge 10 is loaded into the drive device, there is no problem that the cover member 34 is caught in the loading port.

また、開口２０の閉塞時にカバー部材３４の前面１２Ａに対向する内面で、かつ、その上端及び下端には、一対の当接部３８が突設されている。この当接部３８は、開口２０の閉塞時、係合溝部２４に隣接するケース１２の内面に突設された係合凹部４２に当接するようになっている。 In addition, a pair of abutting portions 38 project from the inner surface of the cover member 34 facing the front surface 12A when the opening 20 is closed, and at the upper and lower ends thereof. When the opening 20 is closed, the contact portion 38 comes into contact with an engagement recess 42 that protrudes from the inner surface of the case 12 adjacent to the engagement groove portion 24.

そして、図４（Ａ）、図５（Ｂ）、図６で示すように、カバー部材３４と凹面部４０、即ちカバー部材３４とケース１２の上面１４Ａ及び下面１６Ａ及び左側面１２ＢとのクリアランスＳ１と、支軸２６と貫通孔３６ＡとのクリアランスＳ２と、当接部３８と係合凹部４２とのクリアランスＳ３の関係は、Ｓ１、Ｓ２＞Ｓ３となっている。 4A, FIG. 5B, and FIG. 6, the clearance S1 between the cover member 34 and the concave surface portion 40, that is, the cover member 34 and the upper surface 14A, the lower surface 16A, and the left side surface 12B of the case 12. The relationship between the clearance S2 between the support shaft 26 and the through hole 36A and the clearance S3 between the contact portion 38 and the engagement recess 42 is S1, S2> S3.

したがって、落下等により、コーナー部１２Ｃ付近を被覆するカバー部材３４に衝撃が加えられた場合には、まず、当接部３８が係合凹部４２に強固に当接することによって、その衝撃力がある程度受け止められる。このため、カバー部材３４と凹面部４０の間、及び支軸２６と貫通孔３６Ａの間に加えられる衝撃力を低減することができ、それらの破損や変形等を防止することができる。 Therefore, when an impact is applied to the cover member 34 that covers the vicinity of the corner portion 12C due to dropping or the like, first, the contact portion 38 firmly contacts the engaging recess 42, so that the impact force is to some extent. It is accepted. For this reason, it is possible to reduce the impact force applied between the cover member 34 and the concave surface portion 40 and between the support shaft 26 and the through hole 36A, and to prevent breakage or deformation thereof.

なお、図１乃至図５で示すカバー部材３４は、コーナー部１２Ｃを含むケース１２の前面１２Ａ、左側面１２Ｂ、上面１４Ａ、下面１６Ａを広く被覆するようになっているが、カバー部材３４は、図示のものに限定されるものではない。このカバー部材３４は、例えば図７（Ａ）で示すように、少なくともコーナー部１２Ｃと、上面１４Ａ及び下面１６Ａの前面１２Ａ及び左側面１２Ｂとの境界部分であるエッジ（稜線部分）１２Ｅを含む面を被覆できるような大きさに形成されていればよい。 The cover member 34 shown in FIGS. 1 to 5 covers the front surface 12A, the left side surface 12B, the upper surface 14A, and the lower surface 16A of the case 12 including the corner portion 12C. It is not limited to the illustrated one. For example, as shown in FIG. 7A, the cover member 34 includes at least a corner portion 12C and an edge (ridge line portion) 12E that is a boundary portion between the front surface 12A and the left side surface 12B of the upper surface 14A and the lower surface 16A. What is necessary is just to be formed in the magnitude | size which can coat | cover.

また、カバー部材３４は、図７（Ｂ）で示すように、コーナー部１２Ｃと、コーナー部１２Ｃに接する上面１４Ａのみを被覆できるような大きさに形成されたり、図７（Ｃ）で示すように、コーナー部１２Ｃと、コーナー部１２Ｃに接する下面１６Ａのみを被覆できるような大きさに形成されていてもよい。ただし、カバー部材３４が、ケース１２を上下方向から挟み込むように、上面１４Ａ及び下面１６Ａの両方を被覆する構成であると、永久変形を防止できるだけではなく、一時的な撓み変形も抑止できるので望ましい。 Further, as shown in FIG. 7B, the cover member 34 is formed to a size that can cover only the corner portion 12C and the upper surface 14A in contact with the corner portion 12C, or as shown in FIG. 7C. In addition, the size may be such that only the corner portion 12C and the lower surface 16A in contact with the corner portion 12C can be covered. However, it is preferable that the cover member 34 is configured to cover both the upper surface 14A and the lower surface 16A so as to sandwich the case 12 from above and below, because not only permanent deformation can be prevented but also temporary bending deformation can be suppressed. .

以上のような構成の記録テープカートリッジ１０において、次に、そのドア３０の作用について説明をする。記録テープカートリッジ１０は、不使用時には、ドア３０が開口２０を閉塞している。すなわち、閉塞部材３２が開口２０を閉塞し、カバー部材３４が凹面部４０に嵌合されて、それを被覆している。 Next, the operation of the door 30 of the recording tape cartridge 10 configured as described above will be described. When the recording tape cartridge 10 is not used, the door 30 closes the opening 20. That is, the closing member 32 closes the opening 20, and the cover member 34 is fitted into the concave surface portion 40 to cover it.

このように、カバー部材３４が、開口２０が形成されているコーナー部１２Ｃを上下方向から押さえていると（上面１４Ａ及び下面１６Ａから挟み込んでいると）、落下等によって、そのコーナー部１２Ｃ付近に衝撃が加えられても、破損等の永久変形を防止できるとともに、上ケース１４の周壁１４Ｂと下ケース１６の周壁１６Ｂが互いに離間するような一時的な撓み変形をも抑止することができる。したがって、リーダーテープ２２が係合溝部２４（保持位置）から脱落するような不具合は起きない。 As described above, when the cover member 34 presses the corner portion 12C in which the opening 20 is formed from above and below (when sandwiched from the upper surface 14A and the lower surface 16A), the cover member 34 is brought near the corner portion 12C by dropping or the like. Even if an impact is applied, permanent deformation such as breakage can be prevented, and temporary bending deformation in which the peripheral wall 14B of the upper case 14 and the peripheral wall 16B of the lower case 16 are separated from each other can also be suppressed. Therefore, the trouble that the leader tape 22 falls off from the engaging groove 24 (holding position) does not occur.

また、当接部３８と係合凹部４２とのクリアランスＳ３が、カバー部材３４と凹面部４０とのクリアランスＳ１、及び支軸２６と貫通孔３６ＡとのクリアランスＳ２よりも小さいことから、落下等により加えられた衝撃力は、当接部３８と係合凹部４２とで一番先に受け止められる。したがって、その衝撃力が、例えば支軸２６に直接伝達されないようにできるので、その支軸２６の破損や変形等を防止することができる。更に、その支軸２６の近傍にはビスボス２５が配置されているので、落下時の衝撃力は、そのビスボス２５でも受け止められる。したがって、より一層支軸２６の破損や変形を防止することができる。 Further, since the clearance S3 between the abutting portion 38 and the engaging concave portion 42 is smaller than the clearance S1 between the cover member 34 and the concave surface portion 40 and the clearance S2 between the support shaft 26 and the through hole 36A, it is caused by dropping or the like. The applied impact force is received first by the contact portion 38 and the engagement recess 42. Therefore, the impact force can be prevented from being directly transmitted to the support shaft 26, for example, so that the support shaft 26 can be prevented from being damaged or deformed. Further, since the screw boss 25 is disposed in the vicinity of the support shaft 26, the impact force at the time of dropping can be received by the screw boss 25 as well. Therefore, breakage and deformation of the support shaft 26 can be further prevented.

また、カバー部材３４が凹面部４０を被覆しているとき（開口２０が閉塞されているとき）、そのカバー部材３４は、上面１４Ａ及び下面１６Ａ及び左側面１２Ｂよりも０．０５ｍｍ以上低くなっている（凹になっている）。したがって、記録テープカートリッジ１０をドライブ装置へ装填するときに、そのカバー部材３４が装填口に引っ掛かるような不具合は起きない。 Further, when the cover member 34 covers the concave surface portion 40 (when the opening 20 is closed), the cover member 34 is lower than the upper surface 14A, the lower surface 16A, and the left side surface 12B by 0.05 mm or more. Yes (concave). Therefore, when the recording tape cartridge 10 is loaded into the drive device, there is no problem that the cover member 34 is caught in the loading port.

また、記録テープカートリッジ１０がドライブ装置に装填されて、ドア３０が回動するとき（開口２０が開閉されるとき）、閉塞部材３２とケース１２（上ケース１４及び下ケース１６）との間には、環状凸部３７によって微少な隙間が形成されているので、そのドア３０（閉塞部材３２）のケース１２に対する摺動抵抗が少なくて済む。更に、そのドア３０（閉塞部材３２）において、少なくとも回転摺動部３６及び環状凸部３７が、ＰＯＭ等のオレフィン系樹脂で成形されていれば、ＰＣ等の樹脂で成形されているケース１２（支軸２６を含む）に対して、より一層摺動抵抗を少なくすることができる。 Further, when the recording tape cartridge 10 is loaded in the drive device and the door 30 rotates (when the opening 20 is opened and closed), between the closing member 32 and the case 12 (the upper case 14 and the lower case 16). Since a minute gap is formed by the annular convex portion 37, the sliding resistance of the door 30 (closing member 32) with respect to the case 12 can be reduced. Further, in the door 30 (closing member 32), if at least the rotary sliding portion 36 and the annular convex portion 37 are formed of an olefin resin such as POM, the case 12 ( The sliding resistance can be further reduced with respect to the support shaft 26).

以上、何れにしても、開口２０を閉塞する閉塞部材３２とは別に、コーナー部１２Ｃを上面１４Ａ及び下面１６Ａを含んで被覆可能なカバー部材３４を備えたドア３０としたので、落下等により、そのコーナー部１２Ｃ付近に衝撃が加えられても、永久変形や一時的な撓み変形は起きない。つまり、このカバー部材３４を設けることにより、耐衝撃性に優れた記録テープカートリッジ１０を提供することができる。なお、このカバー部材３４は、開口２０が設けられているコーナー部１２Ｃだけではなく、他のコーナー部、例えば開口２０が設けられていないコーナー部１２Ｄ等にも設けても構わないものである。 In any case, in addition to the closing member 32 that closes the opening 20, the corner portion 12C is the door 30 including the cover member 34 that can cover the upper surface 14A and the lower surface 16A. Even if an impact is applied in the vicinity of the corner portion 12C, no permanent deformation or temporary bending deformation occurs. That is, by providing the cover member 34, the recording tape cartridge 10 having excellent impact resistance can be provided. The cover member 34 may be provided not only at the corner portion 12C where the opening 20 is provided, but also at other corner portions, for example, the corner portion 12D where the opening 20 is not provided.

次に、カバー部材３４を設けずに、永久変形や撓み変形を防止する別の実施例について説明する。なお、上記と同等なものには同じ符号を付して、その説明は省略する。図８で示すように、開口２０付近の上ケース１４及び／又は下ケース１６には、薄板状の補強部材５０が一体的に設けられている。 Next, another embodiment for preventing permanent deformation or bending deformation without providing the cover member 34 will be described. In addition, the same code | symbol is attached | subjected to the thing equivalent to the above, and the description is abbreviate | omitted. As shown in FIG. 8, a thin plate-shaped reinforcing member 50 is integrally provided in the upper case 14 and / or the lower case 16 near the opening 20.

すなわち、コーナー部１２Ｃに接する上ケース１４の上面１４Ａ及び／又は下ケース１６の下面１６Ａに、前面１２Ａ及び左側面１２Ｂに跨る所定深さの凹面部４８を形成し、その凹面部４８に金属製の補強部材５０を接合している。このような構成にすると、落下等により、そのコーナー部１２Ｃ付近に衝撃が加えられた場合に、破損等の永久変形を防止することができる。 That is, a concave portion 48 having a predetermined depth straddling the front surface 12A and the left side surface 12B is formed on the upper surface 14A of the upper case 14 and / or the lower surface 16A of the lower case 16 in contact with the corner portion 12C, and the concave portion 48 is made of metal. The reinforcing member 50 is joined. With such a configuration, permanent deformation such as breakage can be prevented when an impact is applied in the vicinity of the corner portion 12C due to dropping or the like.

なお、このときの接合方法は、かしめ、接着、嵌め込み、インサート成形等、どのような接合方法でもよい。また、金属製の補強部材５０は、プレス（深絞りを含む）又はダイキャストにより成形される。更に、この金属の材質としては、ＳＵＳなどの硬くて錆び難い金属であることが好ましい。また、この補強部材５０を金属と樹脂とで構成してもよい。 The joining method at this time may be any joining method such as caulking, adhesion, fitting, insert molding, or the like. The metal reinforcing member 50 is formed by pressing (including deep drawing) or die casting. Further, the metal material is preferably a hard and rust-resistant metal such as SUS. Moreover, you may comprise this reinforcement member 50 with a metal and resin.

また、この補強部材５０を上面１４Ａ及び下面１６Ａに設ける場合、図９で示すように、開口２０及びドア３０（閉塞部材３２）の回動を妨げない部位において、その上下の補強部材５０を連結部５０Ａによって一体に連結してもよい。このような形状にすると、落下等により、そのコーナー部１２Ｃに衝撃が加えられた場合に、破損等の永久変形を防止できるとともに、互いの周壁１４Ｂ、１６Ｂが一時的に離間するような撓み変形も抑止することができる。 When this reinforcing member 50 is provided on the upper surface 14A and the lower surface 16A, as shown in FIG. 9, the upper and lower reinforcing members 50 are connected at portions that do not hinder the rotation of the opening 20 and the door 30 (closing member 32). You may connect integrally by the part 50A. With such a shape, when an impact is applied to the corner portion 12C due to dropping or the like, it is possible to prevent permanent deformation such as breakage, and bending deformation such that the peripheral walls 14B and 16B are temporarily separated from each other. Can also be deterred.

なお、連結部５０Ａを設ける箇所は、前面１２Ａ側のみ、あるいは左側面１２Ｂ側のみでもよいが、前面１２Ａ側と左側面１２Ｂ側の両方に設けた方が、より一層撓み変形を抑止できるので好ましい。また、補強部材５０を設けた箇所も、上記したカバー部材３４と同様に、上面１４Ａ、下面１６Ａ、左側面１２ＢよりＬ＝０．０５ｍｍ以上低くなっている（凹となっている）ことが好ましい。 The connecting portion 50A may be provided only on the front surface 12A side or only on the left side surface 12B side. However, it is preferable to provide the connecting portion 50A on both the front surface 12A side and the left side surface 12B side because bending deformation can be further suppressed. . Further, the location where the reinforcing member 50 is provided is also preferably lower than the upper surface 14A, the lower surface 16A, and the left side surface 12B by L = 0.05 mm (concave), like the cover member 34 described above. .

更に、この補強部材５０は、開口２０付近（コーナー部１２Ｃ付近）に設けるものに限定されるものではないが、そのコーナー部１２Ｃを含め、各コーナー部に接する上面１４Ａ及び／又は下面１６Ａに設けることが望ましい。また、この補強部材５０は、ケース１２の外面側ではなく、ケース１２の内面側に設けるようにしてもよい。 Further, the reinforcing member 50 is not limited to the one provided near the opening 20 (near the corner portion 12C), but is provided on the upper surface 14A and / or the lower surface 16A in contact with each corner portion including the corner portion 12C. It is desirable. Further, the reinforcing member 50 may be provided not on the outer surface side of the case 12 but on the inner surface side of the case 12.

その他、記録テープカートリッジ１０においては、前後を反対にして積む（逆積みする）ことができない構成にすることが好ましい。逆積みを防止する構成としては、例えば図１０で示すように、下面１６Ａに、前方側の間隔が狭く、後方側の間隔が広い、一対の細長いスタッキングリブ５２を設け、上面１４Ａに、そのスタッキングリブ５２が嵌合するスタッキング凹部５４を形成することが考えられる。この場合は、スタッキング凹部５４がラベルエリア４６を兼用するように構成してもよいし、別々になるように構成してもよい。 In addition, it is preferable that the recording tape cartridge 10 has a configuration in which it cannot be stacked (reversely stacked) with the front and back reversed. As a configuration for preventing reverse stacking, for example, as shown in FIG. 10, a pair of elongated stacking ribs 52 having a narrow front space and a wide rear space are provided on the lower surface 16A, and the stacking is performed on the upper surface 14A. It is conceivable to form a stacking recess 54 into which the rib 52 is fitted. In this case, the stacking recess 54 may be configured to also serve as the label area 46, or may be configured separately.

更に、逆積みできないようにするスタッキングリブとしては、次のようなものが考えられる。例えば図１１で示すように、下面１６Ａに所定の大きさのスタッキングリブ５６を複数、例えば４つ設け、その４つのスタッキングリブ５６の位置を前方側と後方側とでは異なる位置にする。つまり、前方側のスタッキングリブ５６同士の間隔Ｗ１を狭くし、後方側のスタッキングリブ５６同士の間隔Ｗ２を広くする。そして、これに合致するスタッキング凹部５８を同数、上面１４Ａに形成する。このような構成にしても逆積みが防止される。なお、この場合、スタッキング凹部５８がラベルエリア４６を兼用することはできないので、ラベルエリア４６は、図示のように、スタッキング凹部５８の間等に適宜設ければよい。また、スタッキングリブ５６及びスタッキング凹部５８の数量は、３つ以下でもよいが、安定性を考慮すると、４つ以上の方が好ましい。 Furthermore, the following can be considered as stacking ribs that prevent reverse stacking. For example, as shown in FIG. 11, a plurality of, for example, four stacking ribs 56 of a predetermined size are provided on the lower surface 16A, and the positions of the four stacking ribs 56 are different on the front side and the rear side. That is, the interval W1 between the stacking ribs 56 on the front side is reduced, and the interval W2 between the stacking ribs 56 on the rear side is increased. Then, the same number of stacking recesses 58 corresponding to this are formed on the upper surface 14A. Even with such a configuration, reverse stacking is prevented. In this case, since the stacking recess 58 cannot be used as the label area 46, the label area 46 may be appropriately provided between the stacking recesses 58 as shown in the figure. The number of stacking ribs 56 and stacking recesses 58 may be three or less, but is preferably four or more in consideration of stability.

また、例えば図１２で示すように、下面１６Ａに平面視台形状をなすスタッキングリブ６０を複数、例えば４つ設けるようにしてもよい。この場合は、前方側と後方側とでその位置をずらす必要がない。つまり、前方側のスタッキングリブ６０同士の間隔Ｗ３と、後方側のスタッキングリブ６０同士の間隔Ｗ４を同一にしても構わない。そして、これに合致するスタッキング凹部６２を同数、上面１４Ａに形成する。このような構成にしても逆積みが防止される。なお、この場合も、スタッキング凹部６２がラベルエリア４６を兼用することはできないので、ラベルエリア４６は、図示のように、スタッキング凹部６２の間等に適宜設ければよい。また、スタッキングリブ６０及びスタッキング凹部６２の数量は、３つ以下でもよいが、安定性を考慮すると、４つ以上の方が好ましい。 For example, as shown in FIG. 12, a plurality of, for example, four stacking ribs 60 having a trapezoidal shape in plan view may be provided on the lower surface 16A. In this case, it is not necessary to shift the position between the front side and the rear side. That is, the interval W3 between the front stacking ribs 60 and the interval W4 between the rear stacking ribs 60 may be the same. Then, the same number of stacking recesses 62 corresponding to this are formed on the upper surface 14A. Even with such a configuration, reverse stacking is prevented. Also in this case, since the stacking recess 62 cannot be used as the label area 46, the label area 46 may be appropriately provided between the stacking recesses 62 as shown in the figure. The number of stacking ribs 60 and stacking recesses 62 may be three or less, but is preferably four or more in consideration of stability.

また、例えば図１３で示すように、下面１６Ａの前端に所定間隔を隔てて一対のスタッキングリブ６４を設けるとともに、下面１６Ａの後方側に略「Ｖ」字状又は略「Ｕ」字状のスタッキングリブ６５を設けるようにしてもよい。この後方側に設けるスタッキングリブ６５は、その端部が後方側の各コーナー部近傍にそれぞれ位置し、中央の曲折された部分がギア開口４４に近接するように位置している。そして、これに合致するスタッキング凹部６６、６７を上面１４Ａに形成する。このような構成にしても逆積みが防止される。なお、この場合も、スタッキング凹部６６、６７がラベルエリア４６を兼用することはできないので、ラベルエリア４６は、図示のように、スタッキング凹部６６とスタッキング凹部６７の間等に適宜設ければよい。 For example, as shown in FIG. 13, a pair of stacking ribs 64 are provided at the front end of the lower surface 16A at a predetermined interval, and a substantially “V” -shaped or substantially “U” -shaped stacking is provided on the rear side of the lower surface 16A. Ribs 65 may be provided. The stacking ribs 65 provided on the rear side are positioned so that the end portions thereof are positioned in the vicinity of the respective corner portions on the rear side, and the central bent portion is close to the gear opening 44. Then, stacking recesses 66 and 67 matching this are formed on the upper surface 14A. Even with such a configuration, reverse stacking is prevented. Also in this case, since the stacking recesses 66 and 67 cannot be used as the label area 46, the label area 46 may be appropriately provided between the stacking recess 66 and the stacking recess 67 as shown in the figure.

また、例えば図１４で示すように、下面１６Ａの前端及び後端に長さの異なる細長いスタッキングリブ６８を設けるようにしてもよい。このスタッキングリブ６８は、前端側の長さＷ５よりも、後端側の長さＷ６の方が長く形成されているが、前後逆でも構わない。そして、これに合致するスタッキング凹部７０を上面１４Ａに形成する。このような構成にしても逆積みが防止される。なお、この場合も、スタッキング凹部７０がラベルエリア４６を兼用することはできないので、ラベルエリア４６は、図示のように、スタッキング凹部７０の間等に適宜設ければよい。 Further, for example, as shown in FIG. 14, elongated stacking ribs 68 having different lengths may be provided at the front end and the rear end of the lower surface 16A. The stacking rib 68 is formed so that the rear end length W6 is longer than the front end length W5, but it may be reversed. Then, a stacking recess 70 matching this is formed on the upper surface 14A. Even with such a configuration, reverse stacking is prevented. Also in this case, since the stacking recess 70 cannot be used as the label area 46, the label area 46 may be appropriately provided between the stacking recesses 70 as shown in the figure.

また、例えば図１５で示すように、下面１６Ａの左側端及び右側端に長さの異なる細長いスタッキングリブ７２を設けるようにしてもよい。このスタッキングリブ７２は、左側端側の長さＷ７よりも、右側端側の長さＷ８の方が短く形成されているが、左右逆でも構わない。そして、これに合致するスタッキング凹部７４を上面１４Ａに形成する。このような構成にしても逆積みが防止される。なお、この場合も、スタッキング凹部７４がラベルエリア４６を兼用することはできないので、ラベルエリア４６は、図示のように、スタッキング凹部７４の間等に適宜設ければよい。 For example, as shown in FIG. 15, elongated stacking ribs 72 having different lengths may be provided on the left and right ends of the lower surface 16A. The stacking rib 72 is formed such that the length W8 on the right end side is shorter than the length W7 on the left end side, but it may be reversed left and right. Then, a stacking recess 74 that matches this is formed on the upper surface 14A. Even with such a configuration, reverse stacking is prevented. Also in this case, since the stacking recess 74 cannot be used as the label area 46, the label area 46 may be appropriately provided between the stacking recesses 74 as shown in the figure.

以上、何れにしても、スタッキングリブ５２、５６、６０、６４、６５、６８、７２及びスタッキング凹部５４、５８、６２、６６、６７、７０、７４は、互いに逆積み不能な形状になっていれば、どのような形状に構成しても構わない。 In any case, the stacking ribs 52, 56, 60, 64, 65, 68, and 72 and the stacking recesses 54, 58, 62, 66, 67, 70, and 74 cannot be stacked in reverse. Any shape may be used.

記録テープカートリッジの開口閉塞時の概略斜視図Schematic perspective view of the recording tape cartridge when the opening is closed 記録テープカートリッジの開口開放時の概略斜視図Schematic perspective view when opening of recording tape cartridge 記録テープカートリッジのコーナー部を示す概略斜視図Schematic perspective view showing a corner portion of a recording tape cartridge （Ａ）開口閉塞時のコーナー部を示す概略平面図、（Ｂ）開口開放時のコーナー部を示す概略平面図(A) Schematic plan view showing the corner portion when the opening is closed, (B) Schematic plan view showing the corner portion when the opening is opened （Ａ）開口閉塞時のコーナー部を示す概略側面図、（Ｂ）開口開放時のコーナー部を示す概略側面図(A) Schematic side view showing corner portion when opening is closed, (B) Schematic side view showing corner portion when opening is opened （Ａ）支軸と回転摺動部を示す概略平面図、（Ｂ）当接部と係合凹部を示す概略平面図(A) Schematic plan view showing the support shaft and the rotational sliding part, (B) Schematic plan view showing the contact part and the engaging recess. （Ａ）カバー部材の変形例を示す概略斜視図、（Ｂ）カバー部材の変形例を示す概略斜視図、（Ｃ）カバー部材の変形例を示す概略斜視図(A) The schematic perspective view which shows the modification of a cover member, (B) The schematic perspective view which shows the modification of a cover member, (C) The schematic perspective view which shows the modification of a cover member 記録テープカートリッジのコーナー部の変形例を示す概略斜視図Schematic perspective view showing a modification of the corner of the recording tape cartridge 記録テープカートリッジのコーナー部の変形例を示す概略斜視図Schematic perspective view showing a modification of the corner of the recording tape cartridge （Ａ）記録テープカートリッジの概略平面図、（Ｂ）記録テープカートリッジの概略底面図(A) Schematic plan view of recording tape cartridge, (B) Schematic bottom view of recording tape cartridge （Ａ）記録テープカートリッジの概略平面図、（Ｂ）記録テープカートリッジの概略底面図(A) Schematic plan view of recording tape cartridge, (B) Schematic bottom view of recording tape cartridge （Ａ）記録テープカートリッジの概略平面図、（Ｂ）記録テープカートリッジの概略底面図(A) Schematic plan view of recording tape cartridge, (B) Schematic bottom view of recording tape cartridge （Ａ）記録テープカートリッジの概略平面図、（Ｂ）記録テープカートリッジの概略底面図(A) Schematic plan view of recording tape cartridge, (B) Schematic bottom view of recording tape cartridge （Ａ）記録テープカートリッジの概略平面図、（Ｂ）記録テープカートリッジの概略底面図(A) Schematic plan view of recording tape cartridge, (B) Schematic bottom view of recording tape cartridge （Ａ）記録テープカートリッジの概略平面図、（Ｂ）記録テープカートリッジの概略底面図(A) Schematic plan view of recording tape cartridge, (B) Schematic bottom view of recording tape cartridge （Ａ）記録テープカートリッジの概略斜視図、（Ｂ）記録テープカートリッジのコーナー部を示す概略斜視図(A) Schematic perspective view of recording tape cartridge, (B) Schematic perspective view showing corner portion of recording tape cartridge

Explanation of symbols

１０記録テープカートリッジ
１２ケース
１２Ａ前面
１２Ｂ左側面
１２Ｃコーナー部
１４上ケース
１４Ａ上面
１６下ケース
１６Ａ下面
１８リール
２０開口
２２リーダーテープ（リーダー部材）
２６支軸
３０ドア
３２閉塞部材
３４カバー部材
３６回転摺動部
３８当接部
４０凹面部
４２係合凹部 DESCRIPTION OF SYMBOLS 10 Recording tape cartridge 12 Case 12A Front surface 12B Left side surface 12C Corner part 14 Upper case 14A Upper surface 16 Lower case 16A Lower surface 18 Reel 20 Opening 22 Leader tape (leader member)
26 Support shaft 30 Door 32 Closure member 34 Cover member 36 Rotating sliding portion 38 Abutting portion 40 Concave portion 42 Engaging recess

Claims

A case for rotatably accommodating a single reel on which a recording tape is wound;
An opening for pulling out a leader member formed near the corner of the case and attached to the end of the recording tape;
In a recording tape cartridge comprising:
A recording tape cartridge, wherein a cover member that covers a corner portion of the case including an upper surface and / or a lower surface is rotatably provided.

The vicinity of the corner portion refers to the front surface adjacent to or near the corner portion, the front surface and side surface adjacent to or near the corner portion, or the front surface and side surface adjacent to or near the corner portion and at least one of the upper and lower surfaces. The recording tape cartridge according to claim 1.

The recording tape cartridge according to claim 1, wherein the cover member is made of resin, metal, or resin and metal.

A case for rotatably accommodating a single reel on which a recording tape is wound;
An opening for pulling out a leader member formed near the corner of the case and attached to the end of the recording tape;
A door for opening and closing the opening;
In a recording tape cartridge comprising:
The recording tape cartridge, wherein the door is configured to cover a corner portion of the case including an upper surface and / or a lower surface when the opening is closed.

The vicinity of the corner portion refers to the front surface adjacent to or near the corner portion, the front surface and side surface adjacent to or near the corner portion, or the front surface and side surface adjacent to or near the corner portion and at least one of the upper and lower surfaces. The recording tape cartridge according to claim 4.

6. The recording tape cartridge according to claim 4, wherein the door is made of resin, metal, or resin and metal.

The recording tape cartridge according to any one of claims 4 to 6, wherein the door is configured to rotate to open and close the opening.

A case for rotatably accommodating a single reel on which a recording tape is wound;
An opening for pulling out a leader member formed on the front surface and the side surface adjacent to the corner portion of the case and attached to the end portion of the recording tape;
A door that rotates to open and close the opening;
In a recording tape cartridge comprising:
The recording tape cartridge, wherein the door is configured to cover a corner portion of the case including an upper surface and / or a lower surface when the opening is closed.

The recording tape cartridge according to claim 8, wherein the door is configured to cover a surface including an edge in contact with a front surface and a side surface of an upper surface and a lower surface of the case.

The recording tape cartridge according to claim 8 or 9, wherein the door is made of resin, metal, or resin and metal.

10. The recording tape cartridge according to claim 8, wherein the door is made of metal formed by press or die casting.

The recording tape cartridge according to claim 8 or 9, wherein the door is made of metal and has a thickness of 0.3 mm to 0.5 mm.

The said door is comprised with resin and a metal, and both are integrally joined by adhesion | attachment or caulking or fitting or insert molding or outsert molding. Recording tape cartridge.

The recording tape cartridge according to any one of claims 8 to 13, wherein the door is configured to rotate about a support shaft provided in the case to open and close the opening. .

The door is configured to open and close the opening by rotating about a support shaft provided in the case, and at least a rotational sliding portion to be inserted into the support shaft is made of resin. The recording tape cartridge according to any one of claims 8 to 13.

The said door is comprised so that it may become 0.05 mm or more recessed rather than the upper surface, lower surface, and side surface of the said case at the time of the said opening obstruction | occlusion. The recording tape cartridge as described.

17. The recording tape cartridge according to claim 8, wherein a contact portion that contacts the engagement portion of the case is provided inside the door.

A contact portion that contacts the engagement portion of the case is provided on the inside of the door, and the door is configured to open and close the opening by rotating around a support shaft provided in the case. More than the clearance between the rotary sliding portion inserted into the support shaft and the support shaft, and the clearance between the inner surface of the door and the upper surface, the lower surface and the side surface of the case, the engagement portion and the contact portion. The recording tape cartridge according to any one of claims 8 to 16, wherein the clearance is smaller.

The said door is comprised with the obstruction | occlusion member of the same magnitude | size as the said opening, and the cover member which coat | covers the front surface and side surface and upper surface and / or lower surface of the said case. The recording tape cartridge according to any one of 18.

The door is composed of a closing member having the same size as the opening, and a cover member covering the front and side surfaces and the upper and / or lower surface of the case, and at least the closing member is made of resin. The recording tape cartridge according to claim 8, wherein the recording tape cartridge is a recording tape cartridge.