JPH1035762A - Tray of cd holding case - Google Patents
Tray of cd holding caseInfo
- Publication number
- JPH1035762A JPH1035762A JP19646396A JP19646396A JPH1035762A JP H1035762 A JPH1035762 A JP H1035762A JP 19646396 A JP19646396 A JP 19646396A JP 19646396 A JP19646396 A JP 19646396A JP H1035762 A JPH1035762 A JP H1035762A
- Authority
- JP
- Japan
- Prior art keywords
- convex portion
- tray
- outer peripheral
- peripheral surface
- center hole
- 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.)
- Withdrawn
Links
Landscapes
- Packaging For Recording Disks (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ＣＤ（コンパクト
ディスク）を着脱自在に保持するＣＤ収納ケースのトレ
ーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray for a CD storage case for detachably holding a CD (compact disk).
【０００２】[0002]
【従来の技術】図５から図８に示すように、ＣＤ１を内
部に収納するＣＤ収納ケースは、互いに回動開閉自在に
連結されたボトム２とリッド３とにより構成されてい
る。これらボトム２およびリッド３は、それぞれ透明な
合成樹脂の一体成形品である。ボトム２は、収納された
ＣＤ１と平行に位置する矩形状の基板部４と、この基板
部４の４辺部から同じ方向へほぼ直角に屈曲した基端壁
部７、一対の第１の側壁部８、一対の第２の側壁部９お
よび先端壁部10とを有している。基端壁部７はリッド３
に連結される１辺部に位置し、先端壁部10は反対側の１
辺部に位置し、側壁部８，９は残りの２辺部に位置する
ものである。そのうち第１の側壁部８は基端壁部７に、
第２の側壁部９は先端壁部10に繋がっており、これら第
１の側壁部８と第２の側壁部９との間には、ＣＤ１を出
し入れする際に指を入れるための切り欠き部11が形成さ
れている。なお、基板部６は、側壁部８，９よりも若干
外側に突出しており、この突出した部分によりリッド受
部12を形成している。また、第１の側壁部８は、基端壁
部７側の基部13がこの基端壁部７と同じ高さになってい
るが、他の部分は基端壁部７より低くなっている。そし
て、第１の側壁部８には、前記基部13に軸受孔15が形成
されているとともに、この軸受孔15よりもやや先端側に
トレー係止孔16が形成されている。一方、第２の側壁部
９は、基部13を除いた前記第１の側板部８とほぼ対称な
形状になっており、トレー係止孔18とリッド係止孔19と
が間隔をおいて形成されている。2. Description of the Related Art As shown in FIGS. 5 to 8, a CD storage case for storing a CD 1 therein is composed of a bottom 2 and a lid 3 which are connected to each other so as to be rotatable and openable. The bottom 2 and the lid 3 are integrally molded products of a transparent synthetic resin. The bottom 2 has a rectangular substrate portion 4 positioned parallel to the accommodated CD 1, a base end wall portion 7 which is bent at substantially right angles in the same direction from four sides of the substrate portion 4, and a pair of first side walls. A portion 8, a pair of second side wall portions 9 and a tip wall portion 10 are provided. Base wall 7 is lid 3
And one end wall 10 is located on one side connected to
The side walls 8 and 9 are located on the sides, and the side walls 8 and 9 are located on the remaining two sides. Among them, the first side wall part 8 is on the base end wall part 7,
The second side wall 9 is connected to the front end wall 10, and a notch between the first side wall 8 and the second side wall 9 for inserting a finger when inserting or removing the CD 1. 11 are formed. In addition, the board part 6 protrudes slightly outside the side wall parts 8 and 9, and the protruding part forms a lid receiving part 12. In the first side wall portion 8, the base portion 13 on the side of the base end wall portion 7 has the same height as the base end wall portion 7, but the other portions are lower than the base end wall portion 7. . The first side wall 8 has a bearing hole 15 formed in the base 13 and a tray locking hole 16 slightly distal to the bearing hole 15. On the other hand, the second side wall 9 has a shape substantially symmetrical to the first side plate 8 excluding the base 13, and the tray locking hole 18 and the lid locking hole 19 are formed at an interval. Have been.
【０００３】リッド３は、収納されたＣＤ１と平行に位
置する矩形状の基板部21と、この基板部21の２辺部から
同じ方向へほぼ直角に屈曲した側板部22とを有してい
る。これら側板部22の一端部は、基板部21よりも突出し
た軸受片23になっている。そして、これら軸受片23の内
面に形成された支軸24が前記ボトム２の両第１の側壁部
８の軸受孔15に嵌合され、これにより、ボトム２とリッ
ド３とが回動自在に連結されている。また、前記両側板
部22の相対向する内面には、リッド３の第２の側壁部24
のリッド係止孔19に係脱自在に係合する係止突起25が形
成されている。さらに両側板部22の内面には、基板部21
との間にはライナーノーツやマニュアルなどの冊子（図
示しない）を保持するためのほぼ半円平板状の保持用タ
ブ27がそれぞれ２こづつ突出形成されている。The lid 3 has a rectangular substrate portion 21 positioned parallel to the CD 1 stored therein, and a side plate portion 22 bent at substantially right angles in the same direction from two sides of the substrate portion 21. . One end of each of the side plate portions 22 is a bearing piece 23 protruding from the substrate portion 21. The support shafts 24 formed on the inner surfaces of the bearing pieces 23 are fitted into the bearing holes 15 of both the first side walls 8 of the bottom 2, whereby the bottom 2 and the lid 3 are rotatable. Are linked. Further, on the opposite inner surfaces of the both side plate portions 22, the second side wall portion 24 of the lid 3 is provided.
A locking projection 25 is formed so as to be removably engaged with the lid locking hole 19. Further, the board portion 21 is provided on the inner surface of both side plate portions 22.
Two holding tabs 27 each having a substantially semi-circular flat plate shape for holding a booklet (not shown) such as a liner note and a manual are formed between the two.
【０００４】30はＣＤ１を着脱自在に保持するトレーで
あり、前記ボトム２の内側に嵌合する矩形平板状の基板
部31を有し、この基板部31の両側面にそれぞれ２こづつ
形成された係止突起32をボトム２の側壁部８，９のトレ
ー係止孔16，18に係合させることによって、トレー30を
ボトム２に組付け固定する。前記基板部31にはＣＤ１の
外径より僅かに径大な段差凹部33を形成され、その段差
凹部33の中央部にＣＤ１の中央孔1aに係合するＣＤ保持
部34を形成している。このＣＤ保持部34は前記基板部31
から僅かに突出する円形の台座部35と、この台座部35の
中央部に位置してＣＤ１の中央孔1aと嵌合する凸状部36
とで構成されている。なお、凸状部36の外周面はＣＤ１
を抜け止め保持するために、上端から下端に向かって次
第に径小になるように逆テーパ状に形成され、このよう
な逆テーパ状の凸状部36を弾性変形させるため、凸状部
36の上面に形成する開口孔37から凸状部36の外周面およ
び台座部35に跨がる放射状のスリット38が形成されてい
る。Reference numeral 30 denotes a tray for detachably holding the CD 1 and has a rectangular flat plate-like substrate portion 31 fitted inside the bottom 2, and two trays 31 are formed on both side surfaces of the substrate portion 31, respectively. The tray 30 is assembled and fixed to the bottom 2 by engaging the locking projections 32 with the tray locking holes 16 and 18 of the side walls 8 and 9 of the bottom 2. The substrate portion 31 is formed with a stepped recess 33 slightly larger in diameter than the outer diameter of the CD 1, and a CD holding portion 34 is formed at the center of the stepped recessed portion 33 to be engaged with the central hole 1 a of the CD 1. The CD holding section 34 is provided on the substrate section 31.
A pedestal portion 35 slightly projecting from the pedestal portion, and a convex portion 36 located at the central portion of the pedestal portion 35 and fitted into the central hole 1a of the CD 1.
It is composed of The outer peripheral surface of the convex portion 36 is CD1.
In order to prevent the retaining portion from being pulled out, the tapered portion is formed in an inversely tapered shape so that the diameter gradually decreases from the upper end to the lower end.
A radial slit 38 is formed to extend from the opening 37 formed on the upper surface of the 36 to the outer peripheral surface of the convex portion 36 and the pedestal portion 35.
【０００５】そして、ボトム２とリッド３とを閉じた状
態では、リッド３の両側壁部22がボトム２の対応する側
壁部８，９の外側にそれぞれ重なって位置するととも
に、リッド３の両側縁部の先端縁がボトム２のリッド受
部12にそれぞれ突き当たる。そして、リッド３の両側壁
部22の係止突起25がボトム２の両第２の側壁部９のリッ
ド係止孔19に係合することにより、ボトム２とリッド３
とが閉じた状態で保持される。When the bottom 2 and the lid 3 are closed, both side walls 22 of the lid 3 are positioned outside the corresponding side walls 8 and 9 of the bottom 2, respectively. The leading edges of the portions abut against the lid receiving portions 12 of the bottom 2, respectively. Then, the locking projections 25 of both side wall portions 22 of the lid 3 engage with the lid locking holes 19 of both the second side wall portions 9 of the bottom 2, so that the bottom 2 and the lid 3 are engaged.
And are kept closed.
【０００６】また、ＣＤ１をトレー30のＣＤ保持部34に
組み付ける場合、ＣＤ１の中心孔1aを凸状部36に押し込
めば、凸状部36に形成する複数のスリット38によって凸
状部36が中心方向に撓み、この凸状部36にＣＤ１の中心
孔1aが嵌まった状態で保持される。このとき、ＣＤ１
は、中心孔1aの裏面周縁が台座部35に突き当たり、ＣＤ
１の記憶面とトレー30の基板部31とが僅かな間隔を保っ
て平行に保持されるとともに、ＣＤ１が基板部31の段差
凹部33の内側に位置してＣＤ１と段差凹部33の周辺部33
a とがほぼ面一に連続した状態で保持される。なお、Ｃ
Ｄ１を取り出す場合、ボトム２の切り欠き部11から指を
入れてＣＤ１を摘んで凸状部36の上面を押して凸状部36
を中心方向に撓ませながら、ＣＤ１を抜き取るものであ
る。When assembling the CD 1 into the CD holding portion 34 of the tray 30, the center hole 1 a of the CD 1 is pushed into the convex portion 36, and the convex portion 36 is centered by a plurality of slits 38 formed in the convex portion 36. In the direction, and the convex portion 36 is held in a state where the central hole 1a of the CD 1 is fitted. At this time, CD1
Indicates that the peripheral edge of the back surface of the center hole
1 and the substrate portion 31 of the tray 30 are held in parallel with a slight gap therebetween, and the CD 1 is located inside the stepped concave portion 33 of the substrate portion 31 so that the CD 1 and the peripheral portion 33 of the stepped concave portion 33 are located.
a is maintained in a substantially continuous state. Note that C
When taking out D1, a finger is inserted through the notch 11 of the bottom 2 and the CD1 is picked, and the upper surface of the convex portion 36 is pushed to push the convex portion 36.
While the CD is bent toward the center.
【０００７】[0007]
【発明が解決しようとする課題】ところで、前記トレー
30は合成樹脂の一体成形品であり、その成形に際しては
成形用金型（図示しない）が用いられるが、前記従来の
トレー30は、ＣＤ１を保持する凸状部36を逆テーパ状に
形成していることから、トレー30を成形する金型の形状
が複雑化する。すなわち、トレー30の成形用金型には、
凸状部36に対応する部分に逆テーパ状のキャビティを形
成する必要があり、その逆テーパ状のキャビティの加工
には手間がかかる。さらに、凸状部36とＣＤ１の中心孔
1aとの関係は凸状部36と中心孔1aとが緩すぎるとＣＤ１
を確実に保持できず、逆に凸状部36と中心孔1aとがきつ
すぎるとＣＤ１が装着しづらくにるため、凸状部36に対
応するキャビティの成形には、トレー30の凸状部36とＣ
Ｄ１の中心孔1aとが適度な接触圧となるように高精度が
要求される。このため、従来は、凸状部36に対応するキ
ャビティの内周面を磨いて寸法精度を高めるようにして
いるが、逆テーパ状に形成されたキャビティの内面は極
めて研磨しづらいものであり、トレー30の金型加工に手
間がかかり、金型の製作コストがかさむ。特に、前記従
来のトレー30の凸状部36は、その凸状部36を弾性変形さ
せてＣＤ１を着脱自在に保持するために、凸状部36の外
周面に複数のスリット38を放射状に形成することから、
凸状部36を成形するキャビティの形状及び金型構造が一
層複雑化し、その金型の加工が極めて面倒であった。By the way, the tray
Numeral 30 denotes an integrated molded product of a synthetic resin, and a molding die (not shown) is used at the time of molding. The conventional tray 30 has a convex portion 36 for holding the CD 1 formed in a reverse taper shape. Therefore, the shape of the mold for molding the tray 30 is complicated. That is, the molding die of the tray 30 includes:
It is necessary to form a reverse-tapered cavity in a portion corresponding to the convex portion 36, and it takes time to process the reverse-tapered cavity. Further, the convex portion 36 and the center hole of CD1 are formed.
The relationship with 1a is that if the convex portion 36 and the center hole 1a are too loose, CD1
When the convex portion 36 and the center hole 1a are too tight, the CD 1 is difficult to be mounted. Therefore, when the cavity corresponding to the convex portion 36 is formed, the convex portion of the tray 30 is formed. 36 and C
High precision is required so that the center hole 1a of D1 has an appropriate contact pressure. For this reason, conventionally, the inner peripheral surface of the cavity corresponding to the convex portion 36 is polished to increase the dimensional accuracy, but the inner surface of the cavity formed in the reverse taper shape is extremely difficult to polish, It takes time to mold the tray 30, and the mold manufacturing cost increases. Particularly, in the convex portion 36 of the conventional tray 30, a plurality of slits 38 are formed radially on the outer peripheral surface of the convex portion 36 in order to elastically deform the convex portion 36 and detachably hold the CD1. From doing
The shape of the cavity for forming the convex portion 36 and the mold structure are further complicated, and the processing of the mold is extremely troublesome.
【０００８】本発明は、このような問題点を解決しよう
とするもので、トレーを成形する金型構造を簡略化でき
るＣＤ収納ケースのトレーを提供することを目的とす
る。An object of the present invention is to solve such a problem and an object of the present invention is to provide a tray for a CD storage case that can simplify a die structure for forming the tray.
【０００９】[0009]
【課題を解決するための手段】請求項１の発明は、前記
目的を達成するために、基板部の中心部にＣＤの中心孔
に係脱自在に係合させる凸状部を有してＣＤ収納ケース
の内部に組み付けられるＣＤ収納ケースのトレーにおい
て、前記凸状部の外周面を垂直または上端から下端に向
かって次第に径大になるように順テーパ状に形成すると
ともに、この凸状部の外周面に前記ＣＤの裏面に当接し
て前記基板部と前記ＣＤとの間隔を保持するＣＤ受部と
前記ＣＤの中心孔の表面周縁部に当接する抜け止め突部
とを水平方向に突設して前記ＣＤを着脱自在に保持する
ＣＤ保持部を形成したものである。According to a first aspect of the present invention, in order to achieve the above object, a CD having a convex portion which is detachably engaged with a center hole of a CD at a central portion of a substrate portion. In the tray of the CD storage case to be assembled inside the storage case, the outer peripheral surface of the convex portion is formed in a forward taper shape so as to gradually increase in diameter from the top or from the upper end to the lower end. A CD receiving portion that abuts on the back surface of the CD and maintains a gap between the substrate portion and the CD on the outer peripheral surface and a retaining protrusion that abuts on a peripheral portion of the surface of the center hole of the CD protrudes in the horizontal direction. Thus, a CD holding portion for detachably holding the CD is formed.
【００１０】そして、ＣＤをトレーに組み付ける際、Ｃ
Ｄの中心孔を凸状部に挿入すると中心孔の裏面周縁が抜
け止め突起に突き当たる。この後さらにＣＤを押し込む
ことによって凸状部が中心方向に撓みＣＤが抜け止め突
起を乗り越えてＣＤ受部に当接する。これにより、ＣＤ
受部と抜け止め突起との間にＣＤが挟まれて保持され
る。その際、ＣＤの裏面がＣＤ受部に支持され、ＣＤの
記憶面とトレーの基板部とが僅かな間隔を保って平行に
保持される。また、ＣＤの中心孔に貫通する凸状部の外
周面を金型加工が容易な垂直または順テーパ状に形成し
たから、金型製作が容易である。When assembling a CD onto a tray, C
When the center hole of D is inserted into the convex portion, the peripheral edge of the back surface of the center hole abuts on the retaining projection. Thereafter, when the CD is further pushed in, the convex portion bends toward the center and the CD rides over the retaining protrusion and comes into contact with the CD receiving portion. With this, CD
The CD is sandwiched and held between the receiving portion and the retaining projection. At this time, the back surface of the CD is supported by the CD receiving portion, and the storage surface of the CD and the substrate portion of the tray are held in parallel with a slight gap. In addition, since the outer peripheral surface of the convex portion penetrating through the center hole of the CD is formed in a vertical or forward tapered shape that is easy to mold, the mold can be easily manufactured.
【００１１】[0011]
【発明の実施形態】以下、本発明のＣＤ収納ケースのト
レーの第１実施例について、図１及び図２を参照して説
明する。なお、先に説明した図５から図８に示すＣＤ収
納ケースのトレーと共通する部分には同一符号を付し、
その詳細な説明を省略する。本実施例では、基板部31の
中心部に突設する凸状部40の外周面40ａは、上端部から
下端部に向かって次第に径大になるように順テーパ状に
形成され、その凸状部40の外周面40a の下端部寄りにＣ
Ｄ１の中心孔1aより径大なＣＤ受部41を形成し、このＣ
Ｄ受部41とＣＤ１の厚さｔに相当する間隔をおいてＣＤ
１の中心孔1aよりごく僅か径大な抜け止め突起42を形成
している。そして、これら凸状部40の外周面40ａに突設
するＣＤ受部41と抜け止め突起42によってＣＤ１を着脱
自在に保持するＣＤ保持部44を構成している。また、Ｃ
Ｄ受部41と抜け止め突起42は前記凸状部40の外周面40ａ
から0.5 〜１mm突出させてリング状に形成されている。
さらに、本実施例では、トレー30を可撓性の良好な例え
ばポリエステルな樹脂によって成形し、凸状部40を弾性
変形されるために凸状部40の内面側基部に薄肉部43を形
成することによって、図５から図８に示した開口孔37や
スリット38を省略している。なお、ＣＤ受部41と抜け止
め突起42は前記凸状部40の外周面40ａから0.5 〜１mm程
度のごく僅かに突出させているだけなので、トレー30の
成形に際し、トレー30を金型（図示せず）から離型させ
るとき、ＣＤ受部41と抜け止め突起42が弾性変形して無
理抜きされる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a tray for a CD storage case according to the present invention will be described below with reference to FIGS. Parts common to the trays of the CD storage case shown in FIG. 5 to FIG.
A detailed description thereof will be omitted. In the present embodiment, the outer peripheral surface 40a of the convex portion 40 projecting from the center of the substrate portion 31 is formed in a forward tapered shape so that the diameter gradually increases from the upper end to the lower end. C near the lower end of the outer peripheral surface 40a of the part 40
A CD receiving portion 41 having a diameter larger than the center hole 1a of D1 is formed.
At a distance corresponding to the thickness t of the CD receiving portion 41 and CD1, the CD
A retaining projection 42 having a diameter slightly larger than that of one center hole 1a is formed. A CD holding portion 44 for detachably holding the CD 1 is constituted by a CD receiving portion 41 and a retaining projection 42 projecting from the outer peripheral surface 40a of the convex portion 40. Also, C
The D receiving portion 41 and the retaining projection 42 are formed on the outer peripheral surface 40 a of the convex portion 40.
And is formed in a ring shape so as to protrude by 0.5 to 1 mm.
Further, in the present embodiment, the tray 30 is formed of, for example, a polyester resin having good flexibility, and the thin portion 43 is formed on the inner surface side base of the convex portion 40 in order to elastically deform the convex portion 40. Thus, the opening 37 and the slit 38 shown in FIGS. 5 to 8 are omitted. Since the CD receiving portion 41 and the retaining projection 42 only slightly protrude from the outer peripheral surface 40a of the convex portion 40 by about 0.5 to 1 mm, when the tray 30 is formed, the tray 30 is formed into a mold (see FIG. (Not shown), the CD receiving portion 41 and the retaining projection 42 are elastically deformed and are forcibly removed.
【００１２】そして、ＣＤ１をトレー30のＣＤ保持部44
に組み付ける場合、ＣＤ１の中心孔1aを凸状部40に挿入
する。このとき、中心孔1aの裏面周縁が抜け止め突起42
に突き当たる。この後、さらに、ＣＤ１を押し込めば、
順テーパ状の凸状部40が薄肉部43によって中心方向に撓
むが、図２（Ｂ）で示すように、指で凸状部40の上面を
押し付ければ、より簡単かつ迅速に凸状部40が中心方向
に撓み、ＣＤ１が抜け止め突起42を乗り越えてＣＤ受部
41に当接する。そして、ＣＤ１の中心孔1aが抜け止め突
起42を乗り越えると凸状部40の弾性力によって初期状態
に復帰し、これにより、抜け止め突起42が中心孔1aの表
面周縁に当接し、ＣＤ受部41と抜け止め突起42との間に
ＣＤ１が挟まれて保持される。このとき、ＣＤ１はＣＤ
受部41に支持され、ＣＤ１の記憶面とトレー30の基板部
31とが僅かな間隔を保って平行に保持される。また、Ｃ
Ｄ１を取り出す場合には、凸状部40の上面を指で押し付
けるなどして凸状部40を中心方向に撓ませ、抜け止め突
起42からＣＤ１を抜き取る。Then, the CD 1 is inserted into the CD holding section 44 of the tray 30.
When assembling, the center hole 1 a of the CD 1 is inserted into the convex portion 40. At this time, the periphery of the back surface of the center hole 1a is
Hit. After this, if you push CD1 further,
The forwardly tapered convex portion 40 is bent in the center direction by the thin portion 43. However, as shown in FIG. 2 (B), when the upper surface of the convex portion 40 is pressed with a finger, the convex portion can be formed more easily and quickly. The portion 40 bends toward the center, and the CD 1 rides over the retaining protrusion 42 and the CD receiving portion
Abut 41. Then, when the center hole 1a of the CD 1 gets over the retaining projection 42, it returns to the initial state by the elastic force of the convex portion 40, whereby the retaining projection 42 comes into contact with the peripheral edge of the surface of the center hole 1a, and the CD receiving portion The CD 1 is held between the retaining projection 42 and the retaining projection 42. At this time, CD1 is CD
The storage surface of the CD 1 and the substrate portion of the tray 30 are supported by the receiving portion 41.
31 are held in parallel with a slight gap. Also, C
When taking out D1, the convex portion 40 is bent toward the center by pressing the upper surface of the convex portion 40 with a finger or the like, and the CD1 is pulled out from the retaining projection 42.
【００１３】以上のように、本実施例では、ＣＤ１の中
心孔1aに挿入する凸状部40を順テーパ状に形成し、この
凸状部40の外周面にＣＤと抜け止め突起42とを上下に間
隔をおいて水平方向に突設することによって、この凸状
部40を成形する成形用金型（図示せず）の形状を簡略化
できる。つまり、成形用金型における凸状部40と対応す
る部分に加工が容易な順テーパ状のキャビティを形成す
ることで、金型の製作が容易となる。なお、この場合、
凸状部40の対応するキャビティにはＣＤ保持部44となる
ＣＤ受部41と抜け止め突起42にリング状の溝を形成する
ことになるが、このように順テーパ状のキャビティの内
周面にリング状の溝を形成すること自体、比較的容易で
あり、また、寸法精度を高めるためにキャビティの内面
側を磨く場合であっても、順テーパ状のキャビティであ
ればその作業も簡単である。したがって、逆テーパ状の
キャビティを金型に形成する場合に比べて金型形状を簡
略化でき、金型製作に費やす労力を削減できるため、金
型製作のコストも抑えることができる。しかも本実施例
では凸状部40に開口孔37やスリット38は形成していない
ため、金型の形状、構造が一層簡略化され、より金型製
作が容易となる。As described above, in this embodiment, the convex portion 40 to be inserted into the center hole 1a of the CD 1 is formed in a forward tapered shape, and the CD and the retaining projection 42 are formed on the outer peripheral surface of the convex portion 40. By projecting in the horizontal direction at an interval vertically, the shape of a molding die (not shown) for molding the convex portion 40 can be simplified. That is, by forming a forward-tapered cavity that is easy to process in a portion corresponding to the convex portion 40 in the molding die, the production of the die becomes easy. In this case,
In the cavity corresponding to the convex portion 40, a ring-shaped groove is formed in the CD receiving portion 41 serving as the CD holding portion 44 and the retaining projection 42. As described above, the inner peripheral surface of the forward tapered cavity is formed. It is relatively easy to form a ring-shaped groove in the cavity itself, and even if the inner surface side of the cavity is polished to improve dimensional accuracy, the operation is simple if the cavity is a forward tapered cavity. is there. Therefore, the shape of the mold can be simplified as compared with the case where the cavity having the inversely tapered shape is formed in the mold, and the labor required for manufacturing the mold can be reduced, so that the cost for manufacturing the mold can be suppressed. In addition, in this embodiment, since the opening 37 and the slit 38 are not formed in the convex portion 40, the shape and structure of the mold are further simplified, and the mold can be more easily manufactured.
【００１４】なお、本発明は、前記実施例に限定される
ものではなく、種々の変形実施が可能である。例えば、
前記実施例では、凸状部40を順テーパ状にした例を示し
たが、図３に示すように、外周面を垂直に形成した凸状
部50を形成したとしても、前記前記実施例と同様、金型
の形状を簡略化できるため、その金型製作が容易とな
る。また、ＣＤ受部41を抜け止め突起42と同様な突起状
に形成した例を示したが、ＣＤ受部41は単にＣＤ１の記
憶面とトレー30の基板部31とが僅かな間隔を保って平行
に保持すればよいものであって、必ずしもＣＤ受部41を
抜け止め突起42と形状的に一致させる必要はなく、例え
ば、図４に示すように、凸状部40の基端、すなわちトレ
ー30の基板部31から段差状のＣＤ受部51を突設し、その
ＣＤ受部51の中心に凸状部40を形成するようにしてもよ
く、ＣＤ受部51の形状は適宜選定すればよいものであ
る。さらに、抜け止め突起42及びＣＤ受部51はリング状
に繋がった形状に限らず、抜け止め突起42及びＣＤ受部
51を複数形成して断続的に設けるなど適宜選定すればよ
い。また、前記実施例では、金型を形状を極力簡略化す
るために開口孔37やスリット38を省略した例を示した
が、開口孔37やスリット38は必ずしも省略する必要はな
く、必要に応じて形成してもさしつかえない。この場合
であっても逆テーパー状の凸状部を形成する場合に比べ
れば、金型の加工は容易である。It should be noted that the present invention is not limited to the above embodiment, and various modifications can be made. For example,
In the above-described embodiment, an example in which the convex portion 40 has a forward tapered shape is shown. However, as shown in FIG. 3, even if the convex portion 50 having an outer peripheral surface formed vertically is formed, Similarly, since the shape of the mold can be simplified, the mold can be easily manufactured. In addition, although the example in which the CD receiving portion 41 is formed in a projection shape similar to the retaining projection 42 has been shown, the CD receiving portion 41 simply keeps a slight space between the storage surface of the CD 1 and the substrate portion 31 of the tray 30. It is only necessary to hold the CD in parallel, and it is not always necessary to make the CD receiving portion 41 coincide with the retaining projection 42 in shape. For example, as shown in FIG. A step-shaped CD receiving portion 51 may be protruded from the substrate portion 31 of the device 30, and the convex portion 40 may be formed at the center of the CD receiving portion 51. The shape of the CD receiving portion 51 may be appropriately selected. Good thing. Further, the retaining protrusion 42 and the CD receiving portion 51 are not limited to the shapes connected in a ring shape, and the retaining protrusion 42 and the CD receiving portion
It may be appropriately selected, for example, by forming a plurality of 51 and providing them intermittently. Further, in the above-described embodiment, an example in which the opening 37 and the slit 38 are omitted in order to simplify the shape of the mold as much as possible is shown. However, the opening 37 and the slit 38 need not necessarily be omitted. It can be formed even if it is formed. Even in this case, the processing of the mold is easier than in the case of forming a reverse tapered convex portion.
【００１５】[0015]
【発明の効果】請求項１の発明によれば、基板部の中心
部にＣＤの中心孔に係脱自在に係合させる凸状部を有し
てＣＤ収納ケースの内部に組み付けられるＣＤ収納ケー
スのトレーにおいて、前記凸状部の外周面を垂直または
上端から下端に向かって次第に径大になるように順テー
パ状に形成するとともに、この凸状部の外周面に前記Ｃ
Ｄの裏面に当接して前記基板部と前記ＣＤとの間隔を保
持するＣＤ受部と前記ＣＤの中心孔の表面周縁部に当接
する抜け止め突部とを水平方向に突設して前記ＣＤを着
脱自在に保持するＣＤ保持部を形成したので、ＣＤを着
脱自在に保持するための凸状部を成形しやすい形状と
し、成形用金型の加工が容易となる。According to the first aspect of the present invention, a CD storage case is provided inside a CD storage case having a convex portion at the center of the substrate portion for engaging and disengaging with the center hole of the CD. In the tray of (1), the outer peripheral surface of the convex portion is formed in a forward taper shape so as to gradually increase in diameter from the top or from the upper end to the lower end.
A CD receiving portion that abuts on the back surface of D and keeps a space between the substrate portion and the CD, and a retaining protrusion that abuts on a peripheral portion of the surface of the center hole of the CD in a horizontal direction to project the CD. Since the CD holding portion for detachably holding the CD is formed, the convex portion for detachably holding the CD is formed into a shape that can be easily formed, and processing of the molding die becomes easy.
【図１】本発明の一実施例を示すトレーの斜視図であ
る。FIG. 1 is a perspective view of a tray showing one embodiment of the present invention.
【図２】同上トレーの凸状部を示す拡大断面図であり、
（ａ）はＣＤの組み込み状態を示し、（ｂ）はＣＤの着
脱状態を示している。FIG. 2 is an enlarged sectional view showing a convex portion of the tray.
(A) shows a state where the CD is installed, and (b) shows a state where the CD is attached and detached.
【図３】同上凸状部の変形例を示す拡大断面図である。FIG. 3 is an enlarged sectional view showing a modified example of the above-mentioned convex portion.
【図４】同上ＣＤ受部の変形例を示す拡大断面図であ
る。FIG. 4 is an enlarged cross-sectional view showing a modified example of the CD receiving unit.
【図５】従来のＣＤ収納ケースにトレーを組み込んだ状
態を示す斜視図である。FIG. 5 is a perspective view showing a state where a tray is incorporated in a conventional CD storage case.
【図６】同上トレーの斜視図である。FIG. 6 is a perspective view of the tray.
【図７】同上凸状部の拡大断面図である。FIG. 7 is an enlarged cross-sectional view of the above convex portion.
【図８】同上ＣＤの組み込み状態を凸状部の拡大断面図
である。FIG. 8 is an enlarged cross-sectional view of a convex portion in a state where the CD has been assembled.
１ ＣＤ 1a 中心孔 30 トレー 31 基板部 44 ＣＤ保持部 40，50 凸状部 40a ，50a 外周面 41，51 ＣＤ受部 42 抜け止め突起 1 CD 1a Center hole 30 Tray 31 Substrate part 44 CD holding part 40, 50 Convex part 40a, 50a Outer peripheral surface 41, 51 CD receiving part 42 Retaining projection
Claims (1)
在に係合させる凸状部を有してＣＤ収納ケースの内部に
組み付けられるＣＤ収納ケースのトレーにおいて、前記
凸状部の外周面を垂直または上端から下端に向かって次
第に径大になるように順テーパ状に形成するとともに、
この凸状部の外周面に前記ＣＤの裏面に当接して前記基
板部と前記ＣＤとの間隔を保持するＣＤ受部と前記ＣＤ
の中心孔の表面周縁部に当接する抜け止め突部とを水平
方向に突設して前記ＣＤを着脱自在に保持するＣＤ保持
部を形成したことを特徴とＣＤ収納ケースのトレー。1. A tray for a CD storage case which has a convex portion at a center portion of a substrate portion to be removably engaged with a center hole of a CD and is assembled inside the CD storage case. The outer peripheral surface is formed in a forward taper shape so as to gradually increase in diameter from the vertical or from the upper end to the lower end,
A CD receiving portion that contacts an outer peripheral surface of the convex portion with a back surface of the CD to maintain an interval between the substrate portion and the CD;
A tray for holding a CD in a detachable manner by projecting in a horizontal direction a retaining projection which comes into contact with a surface peripheral portion of a center hole of the CD storage case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19646396A JPH1035762A (en) | 1996-07-25 | 1996-07-25 | Tray of cd holding case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19646396A JPH1035762A (en) | 1996-07-25 | 1996-07-25 | Tray of cd holding case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH1035762A true JPH1035762A (en) | 1998-02-10 |
Family
ID=16358232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19646396A Withdrawn JPH1035762A (en) | 1996-07-25 | 1996-07-25 | Tray of cd holding case |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH1035762A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013119425A (en) * | 2011-12-08 | 2013-06-17 | Fuji Plastic Kk | Disk protecting case |
-
1996
- 1996-07-25 JP JP19646396A patent/JPH1035762A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013119425A (en) * | 2011-12-08 | 2013-06-17 | Fuji Plastic Kk | Disk protecting case |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20031007 |