JPH0377579B2 - - Google Patents
Info
- Publication number
- JPH0377579B2 JPH0377579B2 JP59101697A JP10169784A JPH0377579B2 JP H0377579 B2 JPH0377579 B2 JP H0377579B2 JP 59101697 A JP59101697 A JP 59101697A JP 10169784 A JP10169784 A JP 10169784A JP H0377579 B2 JPH0377579 B2 JP H0377579B2
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- cassette lid
- closing member
- lid opening
- opening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010586 diagram Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Casings For Electric Apparatus (AREA)
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は磁気記録再生装置に関し、特に、磁気
テープにカセツトケースより引出して記録再生を
行なう磁気記録再生装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a magnetic recording and reproducing apparatus, and more particularly to a magnetic recording and reproducing apparatus that performs recording and reproduction on a magnetic tape by pulling it out from a cassette case.
主として映像信号を記録再生するVTR（ビデオ
テープレコーダ）においてはカセツトケース内に
収納された磁気テープを引出し、この磁気テープ
を磁気ヘツドを有する回転ドラムに摺接させると
もに、前記回転ドラムを回転させることにより、
例えば5.8ｍ／ｓといつた速いテープ速度が得ら
れるものであり、このようなテープ速度により映
像信号として扱える高い周波数の記録再生を可能
にしている。
In a VTR (video tape recorder) that mainly records and plays back video signals, a magnetic tape stored in a cassette case is pulled out, the magnetic tape is brought into sliding contact with a rotating drum having a magnetic head, and the rotating drum is rotated. According to
For example, a high tape speed of 5.8 m/s can be obtained, and this tape speed enables recording and reproduction of high frequencies that can be treated as video signals.
ところで、前記VTR用カセツトケースは磁気
テープを塵埃等から保護するためカセツト蓋が設
けられており、前記磁気記録再生装置においては
使用時カセツト蓋を開けるとともに前記磁気テー
プをカセツトケースより引出す機構を有してい
る。 Incidentally, the VTR cassette case is provided with a cassette lid to protect the magnetic tape from dust, etc., and the magnetic recording/reproducing apparatus has a mechanism for opening the cassette lid and pulling out the magnetic tape from the cassette case when in use. are doing.
第１図は従来のカセツト蓋開閉機構を示してい
る。図において、１は磁気テープを収容するカセ
ツトケースであり、カセツトケース１の前面には
支軸３を支点として回動する各々逆Ｌ字状のテー
プ保護用カセツト蓋２が設けられている。４はシ
ヤーシ６に固設した前記カセツト蓋２を開閉させ
るための開閉部材であり、シヤーシ６に対して直
立し且つその先端部には所定距離を有するテーパ
部４ａが設けられている。５は磁気テープに対し
て一定の角度を保ちながら前記磁気テープに摺接
する回転ドラムであり、前記回転ドラム５に内臓
された磁気ヘツドにより記録再生が行なわれる。 FIG. 1 shows a conventional cassette lid opening/closing mechanism. In the figure, reference numeral 1 denotes a cassette case for storing magnetic tapes, and on the front surface of the cassette case 1 there are provided tape protection cassette lids 2 each having an inverted L shape and rotating around a support shaft 3 as a fulcrum. Reference numeral 4 denotes an opening/closing member for opening and closing the cassette lid 2 fixedly attached to the chassis 6. The opening/closing member 4 stands upright with respect to the chassis 6 and has a tapered portion 4a having a predetermined distance at its tip. Reference numeral 5 denotes a rotating drum that slides into contact with the magnetic tape while maintaining a constant angle with respect to the magnetic tape, and recording and reproduction are performed by a magnetic head built into the rotating drum 5.
斯かる構成において、その動作例を説明する
と、カセツトケース１を支持し上下動させるカセ
ツトイジエクター装置（図示せず）によりカセツ
トケース１を下方に降下させる。この降下により
カセツトケース１のカセツト蓋２の下端面と前記
カセツト蓋開閉部材４の先端即ちテーパ部４ａに
当接することになる。更にカセツトケース１を下
方に降下させることにより、前記カセツトケース
１のカセツト蓋２の下端面がテーパ部４ａに沿つ
て前記支軸３を支点にして反時計方向に回動する
ことによりカセツト蓋２が開くことになる。又、
前記カセツトケース１にはカセツト蓋２を常時閉
方向に付勢する付勢部材（図示せず）が設けられ
ており、この付勢部材に抗して前記カセツト蓋開
閉部材４がカセツト蓋２を回動させることにな
る。尚、hoはカセツトケース１の上下方向にお
ける移動距離を示している。 To explain an example of the operation of such a configuration, the cassette case 1 is lowered by a cassette ejector device (not shown) that supports the cassette case 1 and moves it up and down. This descent brings the lower end surface of the cassette lid 2 of the cassette case 1 into contact with the tip, ie, the tapered portion 4a, of the cassette lid opening/closing member 4. By further lowering the cassette case 1, the lower end surface of the cassette lid 2 of the cassette case 1 rotates counterclockwise along the tapered portion 4a about the support shaft 3, thereby opening the cassette lid 2. will open. or,
The cassette case 1 is provided with a biasing member (not shown) that always biases the cassette lid 2 in the closing direction, and the cassette lid opening/closing member 4 closes the cassette lid 2 against this biasing member. It will have to be rotated. Note that ho indicates the moving distance of the cassette case 1 in the vertical direction.
ところで、図で明らかなとおり、従来の構造に
おいてはカセツト蓋２が閉から開になるためには
その回動のための距離Ｌが必要であり、依つてカ
セツトケース１の前面と回転ドラム５との距離
L′を短かくすることができなかつた。従つて従来
の磁気記録再生装置においては小型化が難かし
く、特に、携帯用VTRに必要とされる軽量化、
小型化に対して著しい欠点を有するものであつ
た。 By the way, as is clear from the figure, in the conventional structure, a distance L is required for the rotation of the cassette lid 2 from closed to open, and therefore, the distance between the front surface of the cassette case 1 and the rotating drum 5 is distance of
It was not possible to shorten L′. Therefore, it is difficult to reduce the size of conventional magnetic recording and reproducing devices, and in particular, it is difficult to reduce the size and weight required for portable VCRs.
This had a significant drawback in terms of miniaturization.
本発明は上記のような欠点を除去するために成
されたものであり、その目的とするところは小型
な且つ簡単な構成によりコストの安いカセツト蓋
開閉装置を提供することにある。
The present invention has been made to eliminate the above-mentioned drawbacks, and its purpose is to provide a cassette lid opening/closing device that is small in size and simple in construction and is inexpensive in cost.
本発明による磁気記録再生装置は、シヤーシに
固定された第１のカセツト蓋開閉部材と、この第
１のカセツト蓋開閉部材に装着される第２のカセ
ツト蓋開閉部材と、この第２のカセツト蓋開閉部
材を前記シヤーシに対して垂直方向に移動可能に
保持する保持手段と、前記第１、第２のカセツト
蓋開閉部材に係止され且つ第２のカセツト蓋開閉
部材に復帰力を付与する付勢部材とを備え、前記
付勢部材の付勢力を前記カセツトケースの付勢部
材の付勢力より大きくしたことをその特徴として
いる。
The magnetic recording/reproducing apparatus according to the present invention includes a first cassette lid opening/closing member fixed to a chassis, a second cassette lid opening/closing member attached to the first cassette lid opening/closing member, and a second cassette lid opening/closing member attached to the first cassette lid opening/closing member. a holding means for holding the opening/closing member so as to be movable in a direction perpendicular to the chassis; and a retaining means that is engaged with the first and second cassette lid opening/closing members and applies a restoring force to the second cassette lid opening/closing member. A biasing member is provided, and the biasing force of the biasing member is larger than the biasing force of the biasing member of the cassette case.
以下、本発明を図面の実施例に基づいて説明す
る。
Hereinafter, the present invention will be explained based on embodiments shown in the drawings.
第２図及び第３図は本発明による磁気記録再生
装置の第１の実施例としてのカセツト蓋開閉装置
が示されている。尚、従来例である第１図と同一
の構成については同一の符号を付してある。 2 and 3 show a cassette lid opening/closing device as a first embodiment of the magnetic recording/reproducing apparatus according to the present invention. Components that are the same as those in FIG. 1, which is a conventional example, are given the same reference numerals.
第３図で明らかなとおり、シヤーシ６には第１
のカセツト蓋開閉部材８が固定されており、この
開閉部材８は断面コ字状の板金等で形成されてい
る。この第１のカセツト蓋開閉部材８はその上方
にはピン９が立植されており、下方には長穴１３
が穿たれている。１０は前記第１のカセツト蓋開
閉部材８と係合し且つシヤーシ６に対して垂直方
向に移動可能な第２のカセツト蓋開閉部材であり
前記第２の蓋開閉部材１０の上方には長穴１４が
穿たれており、下方にはピン１１が立植されてい
る。この第１のカセツト蓋開閉部材８に設けたピ
ン９と長穴１３、および第２のカセツト蓋開閉部
材１０に設けたピン１１と長穴１４とは、第２の
カセツト蓋開閉部材１０をシヤーシ６に対して垂
直方向に移動可能に保持する保持手段を構成して
いる。１２はコイルバネなどから成る付勢部材で
あり、前記第１のカセツト蓋部材８の上端と前記
第２のカセツト蓋開閉部材１０の下方に設けられ
たピン１１との間に張架されており、その付勢方
向は前記第２のカセツト蓋開閉部材１０を上方に
付勢している。第２図に示す７はカセツトイジエ
クター装置（図示せず）に設けられたカセツトの
イジエクトストツパーであり、このストツパーに
よりカセツト蓋の開口をこれ以上行なわないよう
に阻止している。 As is clear from Figure 3, the chassis 6 has a
A cassette lid opening/closing member 8 is fixed, and this opening/closing member 8 is formed of a sheet metal or the like having a U-shaped cross section. This first cassette lid opening/closing member 8 has a pin 9 set up above it, and a long hole 13 below it.
is worn. 10 is a second cassette lid opening/closing member that engages with the first cassette lid opening/closing member 8 and is movable in the vertical direction with respect to the chassis 6; 14 is bored, and a pin 11 is set up at the bottom. The pin 9 and elongated hole 13 provided in the first cassette lid opening/closing member 8 and the pin 11 and elongated hole 14 provided in the second cassette lid opening/closing member 10 connect the second cassette lid opening/closing member 10 to the chassis. 6 constitutes a holding means for holding it movably in the vertical direction. 12 is a biasing member made of a coil spring or the like, and is stretched between the upper end of the first cassette lid member 8 and a pin 11 provided below the second cassette lid opening/closing member 10; The biasing direction biases the second cassette lid opening/closing member 10 upward. Reference numeral 7 shown in FIG. 2 is a cassette eject stopper provided in a cassette ejector device (not shown), and this stopper prevents the cassette lid from being opened any further.
次に、斯かる構成においてその作用を説明す
る。先ず、カセツトケース１の上下動を可能にす
るカセツトイジエクター装置（図示せず）におけ
るカセツト支持位置を従来のhoよら更にｈだけ
高い位置になるように設定する。次にカセツトケ
ース１を下降させると、前記第１のカセツト蓋開
閉部材８に対して移動可能な第２の開閉部材１０
の先端にあるテーパ面１０ａに当接することにな
る。カセツトケース１の下降が続けて行なわれる
ことにより付勢部材１２の付勢力が前記カセツト
ケース１に内臓された常時カセツト蓋２を閉方向
に付勢する付勢部材の付勢力より大なるよう設定
してあることにより、カセツト蓋はその付勢力に
抗しきれず反時計方向に回動し、蓋２が開くこと
になる。更にカセツトケース１を下降させるとカ
セツト蓋開閉部材２がイジエクターストツパー７
に当接しその回動が阻止されると共にカセツト蓋
２に当接している第２のカセツト蓋開閉部材１０
が前記カセツト蓋２と係合しながら前記付勢部材
１２に打勝つて下降することになる。このことに
より、カセツトケース１はそのカセツト蓋２を開
口した状態で所定位置に設定されることになるの
である。 Next, the operation in such a configuration will be explained. First, the cassette support position in a cassette ejector device (not shown) that allows vertical movement of the cassette case 1 is set to a position h higher than the conventional ho. Next, when the cassette case 1 is lowered, a second opening/closing member 10 that is movable with respect to the first cassette lid opening/closing member 8 is opened.
It comes into contact with the tapered surface 10a at the tip of. As the cassette case 1 continues to descend, the biasing force of the biasing member 12 is set to be greater than the biasing force of the biasing member that is built into the cassette case 1 and always biases the cassette lid 2 in the closing direction. As a result, the cassette lid cannot resist the urging force and rotates counterclockwise, opening the lid 2. When the cassette case 1 is further lowered, the cassette lid opening/closing member 2 moves to the ejector stopper 7.
The second cassette lid opening/closing member 10 is in contact with the cassette lid 2 and is prevented from rotating.
While engaging with the cassette lid 2, it overcomes the biasing member 12 and descends. As a result, the cassette case 1 is set at a predetermined position with its cassette lid 2 open.
これは従来例におけるカセツト蓋開閉用距離Ｌ
が不要となることを意味するものであり、従つて
回転ドラム５とカセツトケース１の前面との距離
L′を省略することができるものとなり、略々同一
面に位置させることが可能になる。 This is the distance L for opening and closing the cassette lid in the conventional example.
This means that the distance between the rotating drum 5 and the front of the cassette case 1 is no longer necessary.
This makes it possible to omit L', and it becomes possible to position them substantially on the same plane.
以上述べたとおり、本発明によれば第１のカセ
ツト蓋開閉部材と、第２のカセツト蓋開閉部材
と、前記第１、第２のカセツト蓋開閉間に係止さ
れ且つ前記第２のカセツト蓋開閉部材に復帰力を
付与する付勢部材と、第２のカセツト蓋開閉部材
をシヤーシに対して垂直方向に移動可能に保持す
る保持手段とを備え、前記付勢部材の付勢力をカ
セツトケースの有する付勢部材より大きくしてい
るので、カセツト蓋を開けた状態にてカセツトケ
ースを所定の位置に載置することができ従つて、
従来必要としていたカセツト蓋の開閉距離L′を不
要とすることができるものである。これによりカ
セツト蓋と回転ドラムとを近づけることができ、
小型な磁気記録再生装置を提供することができる
ものとなる。
As described above, according to the present invention, the first cassette lid opening/closing member, the second cassette lid opening/closing member, and the first cassette lid opening/closing member that is locked between the first and second cassette lid opening/closing members, and that the second cassette lid It is equipped with a biasing member that applies a return force to the opening/closing member, and a holding means that holds the second cassette lid opening/closing member movably in the vertical direction relative to the chassis, and the biasing force of the biasing member is applied to the cassette case. Since the biasing member is larger than the biasing member of the cassette case, the cassette case can be placed in a predetermined position with the cassette lid open.
This eliminates the need for the opening/closing distance L' of the cassette lid, which was conventionally required. This allows the cassette lid and rotating drum to be brought closer together.
This makes it possible to provide a compact magnetic recording/reproducing device.
又、本願の実施例において、通常のVTRを例
にとつて説明したが、これにとどまるものではな
く、８mmVTR等の磁気テープをカセツトケース
より引出して記録再生を行なう磁気記録再生装置
全て適用できることは言うまでもない。 Furthermore, although the embodiments of this application have been explained using an ordinary VTR as an example, the present invention is not limited to this, and can be applied to any magnetic recording/reproducing apparatus that performs recording and reproduction by pulling out a magnetic tape such as an 8 mm VTR from a cassette case. Needless to say.
第１図は従来における要部説明図、第２図は本
発明における要部説明図、第３ａは本発明におけ
る要部側面図であり、第３図ｂは同じく要部断面
正面図である。
１……カセツトケース、２……カセツト蓋、８
……第１のカセツト蓋開閉部材、１０……第２の
カセツト蓋開閉部材、１２……付勢部材。
FIG. 1 is an explanatory diagram of the main parts in the conventional system, FIG. 2 is an explanatory diagram of the main parts in the present invention, FIG. 3a is a side view of the main parts in the present invention, and FIG. 3b is a sectional front view of the main parts. 1...Cassette case, 2...Cassette lid, 8
...First cassette lid opening/closing member, 10... Second cassette lid opening/closing member, 12... Biasing member.
Claims (1)
録再生を行なう磁気記録再生装置において、シヤ
ーシに固定された第１のカセツト蓋開閉部材と、
この第１のカセツト蓋開閉部材に装着される第２
のカセツト蓋開閉部材と、この第２のカセツト蓋
開閉部材を前記シヤーシに対して垂直方向に移動
可能に保持する保持手段と、前記第１、第２のカ
セツト蓋開閉部材に係止され且つ第２のカセツト
蓋開閉部材に復帰力を付与する付勢部材とを備
え、前記付勢部材の付勢力を前記カセツトケース
の付勢部材の付勢力より大きくしたことを特徴と
する磁気記録再生装置。1. In a magnetic recording and reproducing device that performs recording and reproducing by pulling out a magnetic tape from a cassette case, a first cassette lid opening/closing member fixed to a chassis;
The second cassette lid opening/closing member is attached to the first cassette lid opening/closing member.
a cassette lid opening/closing member, a holding means for holding the second cassette lid opening/closing member so as to be movable in the vertical direction with respect to the chassis, and a holding means for holding the second cassette lid opening/closing member movably in the vertical direction with respect to the chassis; 1. A magnetic recording and reproducing apparatus comprising: a biasing member that applies a return force to the second cassette lid opening/closing member, and the biasing force of the biasing member is greater than the biasing force of the biasing member of the cassette case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59101697A JPS60246051A (en) | 1984-05-22 | 1984-05-22 | Magnetic recording and reproducing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59101697A JPS60246051A (en) | 1984-05-22 | 1984-05-22 | Magnetic recording and reproducing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60246051A JPS60246051A (en) | 1985-12-05 |
| JPH0377579B2 true JPH0377579B2 (en) | 1991-12-11 |
Family
ID=14307515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59101697A Granted JPS60246051A (en) | 1984-05-22 | 1984-05-22 | Magnetic recording and reproducing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60246051A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2537790B2 (en) * | 1986-02-20 | 1996-09-25 | 松下電器産業株式会社 | Tape guide device |
-
1984
- 1984-05-22 JP JP59101697A patent/JPS60246051A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60246051A (en) | 1985-12-05 |
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