JPH06295512A - Cassette loading device - Google Patents

Abstract

PURPOSE:To previously reduce the catching caused by the friction of an opening/ closing lid with a tape due to the instantaneous opening thereof and to prevent the tape from being damaged by opening the opening/closing lid by specified amount in the middle of operation for inserting a cassete in a cassette loading device. CONSTITUTION:After the locking of the opening/closing lid 6 is released corresponding to the insertion of the cassette 1 (in a direction shown by an arrow), the reel base of a VTR device and a reel hub 3 in the cassette 1 are engaged, so that the lid 6 is gradually opened along the inclined surface 14 of a lid opening member 12. Therefore, even though one end of the tape is pulled to the inner surface 15 of the opening/closing lid by frictional force with the lid 6, the lid 6 is not instantaneously opened by the specified amount from a fully closed state manually or by a motor driving means as in the conventional manner. Therefore, the tape 2 is fully separated from the inner surface of the opening/closing lid. In such a case, the catching caused by the friction of the lid with the tape is previously reduced and the tape is prevented from being damaged.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、カセットを挿入後、所
定位置への移動、保持を行なうカセット装着装置に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette mounting device which moves and holds a cassette at a predetermined position after inserting the cassette.

【０００２】[0002]

【従来の技術】従来、ＶＴＲなどのカセット装着装置
は、カセットを挿入後、手動あるいはモータ駆動手段に
よりカセットを所定位置に移動、保持するものであり、
カセットの一部に設けられたテープ保護用開閉蓋の開閉
動作は、前記所定位置への移動時に行なわれる構成であ
った。2. Description of the Related Art Conventionally, a cassette mounting apparatus such as a VTR is one which moves or holds a cassette to a predetermined position manually or by a motor drive means after inserting the cassette.
The opening / closing operation of the tape protection opening / closing lid provided on a part of the cassette is performed when moving to the predetermined position.

【０００３】近年、カセット内のテープは、情報の高密
度記録化、装置の小型軽量化などの要求から、テープ薄
膜化や外気の粉塵からの保護などが必要となってきてお
り、テープ薄膜化による低剛性下でのダメージレス、よ
り確実な外気との遮蔽構成などを図ることがさらに重要
となってきている。In recent years, the tape in the cassette has been required to be thinned and protected from dust in the outside air due to demands for high-density recording of information, downsizing and weight reduction of the device, and the thinning of the tape. It is becoming more important to achieve damagelessness under low rigidity, and to ensure a more reliable shield structure against the outside air.

【０００４】図３に、従来のカセットの裏面より見た構
成を示す。同図において、１はテープ２、一対のリール
ハブ３および一対の規制ポスト４を内蔵したカセット、
５はリールハブ３とは所定量の間隙でカセット１に設け
られた孔部である。カセット１の一端部にはテープ２を
保護する外側の開閉蓋６とそれと対の内側の開閉蓋７が
ある。カセット１は、ＶＴＲなどの装置に装着するとき
には、カセット１を挿入した後、所定位置までのカセッ
ト移動中に開閉蓋ロックを解除するとともに保持するカ
セットアップユニット機構（図示せず）を介して行なわ
れる。また、ＶＴＲなどの装置に装着されたときには装
置側のリール台（図示せず）とリールハブ３が嵌合し、
リールハブ３と孔部５はほぼ同心円となっている。FIG. 3 shows the configuration of the conventional cassette as viewed from the back side. In the figure, 1 is a cassette containing a tape 2, a pair of reel hubs 3 and a pair of restriction posts 4,
Reference numeral 5 denotes a hole provided in the cassette 1 with a predetermined gap from the reel hub 3. At one end of the cassette 1, there is an outer opening / closing lid 6 for protecting the tape 2 and an inner opening / closing lid 7 paired therewith. When the cassette 1 is mounted on a device such as a VTR, after the cassette 1 is inserted, the cassette 1 is inserted through a cassette setup unit mechanism (not shown) that unlocks and holds the open / close lid lock during movement of the cassette to a predetermined position. Be done. Further, when mounted on a device such as a VTR, a reel stand (not shown) on the device side and the reel hub 3 are fitted,
The reel hub 3 and the hole 5 are substantially concentric circles.

【０００５】[0005]

【発明が解決しようとする課題】しかし、上記従来の構
成のものでは、以下のような課題がある。However, the above-mentioned conventional structure has the following problems.

【０００６】カセット１をＶＴＲなどの装置より取り出
すと、図４に示すようにリールハブ３と孔部５の同心円
状態は無くなり、例えば開閉蓋６を下向けにしたときに
は、カセット１内のテープ２は、開閉蓋６内で弛むこと
になる。その方向でカセット１をまたＶＴＲ装置のカセ
ットアップユニット機構に挿入しリール台に装着すると
テープダメージが発生することとなる。When the cassette 1 is taken out from a device such as a VTR, the reel hub 3 and the hole 5 are not concentric as shown in FIG. 4. For example, when the opening / closing lid 6 is faced down, the tape 2 in the cassette 1 is removed. It will be loosened in the opening / closing lid 6. If the cassette 1 is again inserted into the cassette setup unit mechanism of the VTR device in that direction and mounted on the reel stand, tape damage will occur.

【０００７】その理由は、カセット１内でのテープ２の
弛みが、ＶＴＲ装置のリール台とカセット１内のリール
ハブ３が係合するまで（図５で示すカセットアップユニ
ット７の左矢印方向への移動中）は通常とりきれず、そ
の係合が行なわれるまえに開閉蓋６および８の開放（図
５矢印ＢおよびＣ）が完全に閉まった状態から所定開放
量まで手動またはモータ駆動手段などで瞬時に行なわれ
るため、従来以上に薄膜化され低剛性化したテープ２は
開閉蓋６との摩擦力で一方の端が開閉蓋開放方向に引っ
張られ、その結果図６に示すようにテープ２の一部分９
が屈曲させられるためテープダメージが発生する。The reason for this is that the slack of the tape 2 in the cassette 1 causes the reel base of the VTR device and the reel hub 3 in the cassette 1 to engage (in the direction of the left arrow of the cassette set-up unit 7 shown in FIG. 5). (During movement), it is usually out of reach, and before the engagement is performed, the open / close lids 6 and 8 are completely closed (arrows B and C in FIG. 5) from a completely closed state to a predetermined open amount manually or by a motor drive means. Since the tape 2 is made instantly, one end of the tape 2 which is thinner and has lower rigidity than the conventional one is pulled in the opening / closing lid opening direction by the frictional force with the opening / closing lid 6, and as a result, as shown in FIG. Part 9
As it is bent, tape damage occurs.

【０００８】また、テープダメージは開閉蓋の密閉度を
高めようと互いの開閉蓋の当接部１０、１１を長くとる
とさらに発生し易くなる。また、カセットアップユニッ
トを手動で操作する構成ではその操作スピードが速くな
るほどダメージが発生し易くなっている。Further, tape damage is more likely to occur when the contact portions 10, 11 of the opening / closing lids are made long in order to improve the airtightness of the opening / closing lids. Further, in the configuration in which the K-setup unit is manually operated, the higher the operation speed, the more likely damage is to occur.

【０００９】本発明は上記課題を解決するもので、簡単
な構成で、カセット構成は従来のままでテープダメージ
のないカセット装着装置の提供を目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a cassette mounting device having a simple structure and a conventional cassette structure without tape damage.

【００１０】[0010]

【課題を解決するための手段】上記した目的を達成する
本発明の技術的な手段は、カセット装着装置へのカセッ
ト挿入動作中に開閉蓋を所定量開放させる構成をカセッ
ト装着装置に設けたことである。The technical means of the present invention for achieving the above-mentioned object is to provide the cassette mounting device with a structure for opening a predetermined amount of the opening / closing lid during the cassette inserting operation into the cassette mounting device. Is.

【００１１】[0011]

【作用】この技術的手段による作用は次のようである。The operation of this technical means is as follows.

【００１２】すなわち、カセット装着装置へのカセット
挿入動作中に開閉蓋を所定量開放させることにより、開
閉蓋の瞬時の開放に伴うテープとの摩擦による引掛かり
を未然に低減することによって従来発生していたテープ
ダメージを無くすことができる。That is, by opening the opening / closing lid by a predetermined amount during the cassette inserting operation into the cassette loading device, the catching due to the friction with the tape due to the instantaneous opening of the opening / closing lid is reduced in advance. You can eliminate the tape damage that used to occur.

【００１３】[0013]

【実施例】以下、本発明の一実施例を添付図面に基づい
て説明する。なお、従来と同様な構成部品については同
符号にて示す。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings. It should be noted that the same components as those of the related art are denoted by the same reference numerals.

【００１４】図１は、本発明の構成を示す部分断面図で
ある。同図において、蓋開け部材１２はカセットアップ
ユニット７の側面にネジ１３で取り付けてある。カセッ
ト１の挿入（矢印方向）に伴い開閉蓋６のロック解除
（図示せず）が行なわれた後、ＶＴＲ装置のリール台と
カセット１内のリールハブ３が係合するため開閉蓋６は
蓋開け部材１２の傾斜面１４に沿って徐々に開放され
る。徐々に開放蓋６が開放されるのでたとえ開放蓋６と
の摩擦力で一方の端が開閉蓋内面１５に引っ張られて
も、従来のように完全に閉った状態から所定量の開放を
手動またはモータ駆動手段などで瞬時に行なわれないの
で、テープ２は開放蓋内面より完全に離すことができ
る。図２は、カセット１をカセットアップユニット７に
挿入完了した部分断面図である。同図に示すように、開
閉蓋６の所定量開放によりテープ２は開閉蓋内面１５よ
り完全に離すことができ、この状態より従来のようにカ
セットアップユニット７をＶＴＲ装置のリール台に向け
て（矢印方向）操作しても開閉蓋６はテープ２には何の
影響も与えない。FIG. 1 is a partial sectional view showing the structure of the present invention. In the figure, the lid opening member 12 is attached to the side surface of the setup unit 7 with a screw 13. After the opening / closing lid 6 is unlocked (not shown) as the cassette 1 is inserted (in the direction of the arrow), the reel base of the VTR device engages with the reel hub 3 in the cassette 1, so that the opening / closing lid 6 is a lid opening member. It is gradually opened along the inclined surface 14 of 12. Since the opening lid 6 is gradually opened, even if one end is pulled by the inner surface 15 of the opening / closing lid due to the frictional force with the opening lid 6, a predetermined amount of opening is manually performed from the completely closed state as in the conventional case. Alternatively, the tape 2 can be completely separated from the inner surface of the open lid because it is not instantaneously performed by the motor driving means or the like. FIG. 2 is a partial cross-sectional view showing that the cassette 1 is completely inserted into the cassette setup unit 7. As shown in the figure, the tape 2 can be completely separated from the inner surface 15 of the opening / closing lid by opening the opening / closing lid 6 by a predetermined amount. From this state, the cassette setup unit 7 is directed toward the reel stand of the VTR device as in the conventional case. The opening / closing lid 6 does not affect the tape 2 even if it is operated (in the direction of the arrow).

【００１５】[0015]

【発明の効果】以上の実施例から明らかなように本発明
によれば、カセット装着装置へのカセット挿入動作中に
開閉蓋を所定量開放させることにより、開閉蓋の瞬時の
開放に伴うテープとの摩擦による引掛かりを未然に低減
することによって、従来発生していたテープダメージを
無くすことができる。As is apparent from the above embodiments, according to the present invention, by opening the opening / closing lid by a predetermined amount during the operation of inserting the cassette into the cassette loading device, the tape accompanying the instantaneous opening of the opening / closing lid can be provided. The tape damage that has conventionally occurred can be eliminated by reducing the catch caused by the friction.

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

【図１】本発明の一実施例のカセット装着装置における
部分断面図FIG. 1 is a partial sectional view of a cassette mounting device according to an embodiment of the present invention.

【図２】本発明の一実施例のカセット装着装置へのカセ
ット挿入完了における部分断面図FIG. 2 is a partial cross-sectional view of a cassette loading apparatus according to an embodiment of the present invention when the cassette is completely inserted

【図３】従来のカセットの裏面の平面図FIG. 3 is a plan view of the back surface of a conventional cassette.

【図４】従来のカセットの裏面の平面図FIG. 4 is a plan view of the back surface of a conventional cassette.

【図５】従来のカセットおよびカセット装着装置の部分
断面図FIG. 5 is a partial sectional view of a conventional cassette and a cassette mounting device.

【図６】従来のカセット開放時の部分断面図FIG. 6 is a partial sectional view of a conventional cassette opened.

【符号の説明】[Explanation of symbols]

１ カセット ２ テープ ６ 開閉蓋 １２ 蓋開け部材 1 cassette 2 tape 6 open / close lid 12 lid opening member

Claims (2)

【特許請求の範囲】[Claims] 【請求項１】 テープを内蔵し一部に開閉蓋を有するカ
セットを挿入し、そのカセットを所定位置に移動、保持
するカセット装着装置であり、前記カセットが挿入方向
に移動するときに前記開閉蓋を部材により所定量開放し
て、装着完了位置に移動することを特徴とするカセット
装着装置。1. A cassette mounting device for inserting a cassette having a tape built therein and partially having an opening / closing lid, and moving and holding the cassette at a predetermined position, wherein the opening / closing lid is moved when the cassette moves in the insertion direction. A cassette mounting device, characterized in that the member is opened by a predetermined amount and moved to a mounting completion position. 【請求項２】 前記部材はカセットホルダーユニットに
取付けられ、前記部材の傾斜面に沿って前記開閉蓋を所
定量開放することを特徴とする請求項１記載のカセット
装着装置。2. The cassette mounting apparatus according to claim 1, wherein the member is attached to a cassette holder unit, and the opening / closing lid is opened by a predetermined amount along an inclined surface of the member.