JPH0439144B2 - - Google Patents
Info
- Publication number
- JPH0439144B2 JPH0439144B2 JP60051122A JP5112285A JPH0439144B2 JP H0439144 B2 JPH0439144 B2 JP H0439144B2 JP 60051122 A JP60051122 A JP 60051122A JP 5112285 A JP5112285 A JP 5112285A JP H0439144 B2 JPH0439144 B2 JP H0439144B2
- Authority
- JP
- Japan
- Prior art keywords
- cassette
- worm
- clutch
- clutch mechanism
- worm wheel
- 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
- 230000035939 shock Effects 0.000 claims description 2
- 230000006835 compression Effects 0.000 claims 2
- 238000007906 compression Methods 0.000 claims 2
- 230000037431 insertion Effects 0.000 description 6
- 238000003780 insertion Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、カセツト式磁気記録再生装置のフロ
ントローデイング式カセツト装着装置に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a front loading type cassette mounting device for a cassette type magnetic recording/reproducing device.
従来の技術
従来、この種のカセツト装着装置としてカセツ
トの移動手段であるウオームホイールにクラツチ
バネを介しているものがある。BACKGROUND ART Conventionally, there is a cassette mounting device of this type in which a clutch spring is interposed in a worm wheel which is a means for moving the cassette.
発明が解決しようとする問題点
従来の移動手段のウオームホイール部のクラツ
チ機構ではカセツトの挿入を衝撃的に行つた時ク
ラツチ部の逃げ量に限度があるため駆動メカニズ
ムに多大の負荷が加わり部品破損等を生ずる。
又、クラツチバネを用いたものは衝撃的な挿入に
対してクラツチが働くが反発を生じカセツトがカ
セツトホルダーからずれる危険性がある。Problems to be Solved by the Invention In the clutch mechanism of the worm wheel part of conventional transportation means, there is a limit to the amount of escape of the clutch part when the cassette is inserted with impact, so a large load is applied to the drive mechanism, resulting in component damage. etc.
In addition, in the case of a device using a clutch spring, the clutch works against impactful insertion, but there is a risk that repulsion occurs and the cassette slips from the cassette holder.
本発明は以上の様な従来のものに対してカセツ
ト挿入力の低減をはかり、且つホルダーとカセツ
トの反発を極力押えるとともにカセツト挿入時に
駆動部に大きな負荷をかけない様にしたものであ
る。 The present invention aims to reduce the cassette insertion force as compared to the above-mentioned conventional devices, suppresses the repulsion between the holder and the cassette as much as possible, and avoids placing a large load on the drive section when inserting the cassette.
問題点を解決するための手段
上記問題点を解決するために本発明のカセツト
装着装置は、ウオームを軸方向にスライド可能な
構成をとる第一のクラツチ手段と前記第一のクラ
ツチ手段に於て吸収できない衝撃負荷に於てはウ
オームホイールに構成した第二のクラツチ手段を
具備する様に構成したものである。Means for Solving the Problems In order to solve the above problems, the cassette mounting device of the present invention includes a first clutch means configured to allow the worm to slide in the axial direction, and a first clutch means configured to allow the worm to slide in the axial direction. For shock loads that cannot be absorbed, a second clutch means is provided in the form of a worm wheel.
作 用
カセツトが所定の位置に挿入されるまでは第一
のクラツチ手段で動作し非常に軽い挿入力でカセ
ツトが挿入でき、またカセツト反発も無く又衝撃
的な挿入に於ては第２のクラツチ手段をも作動せ
しめ駆動部の部品破損を防止しうるものである。Function The first clutch operates until the cassette is inserted into the specified position, allowing the cassette to be inserted with a very light insertion force, and there is no cassette repulsion. It is also possible to prevent damage to parts of the drive unit by activating the means.
実施例
第１図〜第６図に本発明の実施例を示す。それ
らの図に於て、カセツト２をカセツトホルダー２
０に挿入した時、カセツト２の前面部は２−１に
位置する。この位置より矢印ｂ方向にａストロー
ク分挿入した時検出スイツチ（図示せず）が作動
しモータ３が回転し伝達ベルト４によつて伝達さ
れた回転力はウオームシヤフト５を駆動する。前
記ウオームシヤフト５とウオーム６の構成は第５
図、第６図に示す構成となつている。前記ウオー
ムシヤフトを５にはＤカツト面５ａを有しウオー
ム６にはＤ形状穴６ａが設けられそれぞれ迎合し
ている。Embodiments FIGS. 1 to 6 show embodiments of the present invention. In those figures, place cassette 2 in cassette holder 2.
When the cassette 2 is inserted at 2-1, the front surface of the cassette 2 is located at 2-1. When it is inserted by a stroke in the direction of arrow b from this position, a detection switch (not shown) is activated, motor 3 rotates, and the rotational force transmitted by transmission belt 4 drives worm shaft 5. The configuration of the worm shaft 5 and the worm 6 is as follows.
The configuration is shown in FIGS. The worm shaft 5 has a D-cut surface 5a, and the worm 6 is provided with a D-shaped hole 6a to fit therein.
前記関係よりウオーム６は矢印ｂ方向にストロ
ークｃまでスライド可能となりウオームシヤフト
５の回転力はウオーム６に伝達される関係にあ
る。又前記ウオーム６は発条部材７によつて常時
矢印ｄ方向に附勢されるよう構成されている。こ
こで前記ウオーム６が矢印ｂ方向にストローク最
大ｃまで移動してもウオームホイール８との噛み
合いは外れない様に位置している。 From the above relationship, the worm 6 can slide in the direction of the arrow b up to the stroke c, and the rotational force of the worm shaft 5 is transmitted to the worm 6. Further, the worm 6 is configured to be constantly urged in the direction of arrow d by a spring member 7. Here, the worm 6 is positioned so that it will not come out of engagement with the worm wheel 8 even if it moves in the direction of arrow b to the maximum stroke c.
前記ウオームシヤフト５の回転力はウオーム６
に伝達され以下ウオームホイール８、前記ウオー
ムホイール８と回転中心を同一としクラツチスプ
リング９によつて一体となつたクラツチ歯車１
０、シヤフトギア１１、中継歯車１２、中継歯
車１３、ワイパーギア１４の順に回転力が伝達
されワイパーギア１４の先端溝穴１４−ａに迎合
された前記カセツトホルダー２０は基板１５上に
設置されたサイドプレート１６のガイド穴１６ａ
に沿つて案内されながら所定の位置に装填され
る。第３図、第４図に前記ウオームホイール８と
クラツチ歯車１０の構成を示した。 The rotational force of the worm shaft 5 is the rotational force of the worm shaft 5
The clutch gear 1 has the same rotation center as the worm wheel 8 and is integrated by a clutch spring 9.
0, the rotational force is transmitted to the shaft gear 11, the relay gear 12, the relay gear 13, and the wiper gear 14 in this order, and the cassette holder 20, which is fitted into the tip slot 14-a of the wiper gear 14, is attached to the side installed on the substrate 15. Guide hole 16a of plate 16
It is loaded into a predetermined position while being guided along the The configuration of the worm wheel 8 and clutch gear 10 is shown in FIGS. 3 and 4.
前記ウオームホイール８はバネ掛け部８ａを具
備し同様にバネ掛け部１０ａを具備したクラツチ
歯車１０と回転中心が同一となりクラツチスプリ
ング９によつて前記ウオームホイールバネ掛け部
８ａとクラツチ歯車バネ掛け部１０ａにそれぞれ
のバネ端を固定される構成となり常時は位相を同
一にして回転している。 The worm wheel 8 has a spring hook 8a and has the same rotation center as the clutch gear 10 which also has a spring hook 10a, and the clutch spring 9 rotates the worm wheel spring hook 8a and the clutch gear spring hook 10a. The spring ends are fixed to each other, and they always rotate with the same phase.
以上の構成に於てカセツト２が衝撃的に矢印ｂ
方向にストロークｃカセツト前面部２−３まで挿
入された時のその衝撃は発条部材７によつて吸収
する前記発条部材７は非常に軽い張力のものであ
りカセツトの反発も軽減できるものである。 In the above configuration, the cassette 2 shockingly moves towards arrow b.
The impact when the cassette is inserted up to the front part 2-3 of the stroke C in the direction is absorbed by the spring member 7.The spring member 7 has a very light tension and can reduce the repulsion of the cassette.
ここで１８は前面パネルである。前記衝撃荷重
よりもさらに強裂な衝撃荷重でカセツト２を挿入
された時カセツト２の前面部は２−４まで位置し
前記ウオーム６はストロークｃいつぱいまで矢印
ｂ方向に移動し以降の衝撃を前記クラツチスプリ
ング９によつて緩和する事になる。 Here, 18 is a front panel. When the cassette 2 is inserted with an impact load stronger than the impact load mentioned above, the front part of the cassette 2 is positioned up to 2-4, and the worm 6 moves in the direction of the arrow b until the stroke c is full, and then absorbs the subsequent impact. This will be relieved by the clutch spring 9.
発明の効果
以上の説明から明らかなように本発明によれば
(1)カセツト挿入力の軽減、(2)衝撃的挿入の反発
防止と(3)部品破損の防止等の効果が得られる。実
際には前面パネルより奥への衝撃挿入は不能であ
る。Effects of the Invention As is clear from the above description, according to the present invention, effects such as (1) reduction of cassette insertion force, (2) prevention of rebound from impactful insertion, and (3) prevention of component damage can be obtained. In reality, it is impossible to insert impact deeper than the front panel.
第１図は本発明の実施例の全体構成を示す側面
図、第２図は本実施例のカセツト挿入部の略斜視
図、第３図はウオームホイールとクラツチ歯車の
構成を示す正面図、第４図はその断面図、第５図
はウオームの構成を示す詳細図、第６図はその正
面図である。
２……カセツト、３……駆動モータ、４……駆
動ベルト、５……ウオームシヤフト、６……ウオ
ーム、８……ウオームホイール、９……クラツチ
スプリング、１０……クラツチ歯車、１１……シ
ヤフトギア、１２……中継歯車、１３……中継
歯車、１４……ワイパーギア、１５……基板、
１６……サイドプレート、２０……カセツトホル
ダー。
FIG. 1 is a side view showing the overall configuration of an embodiment of the present invention, FIG. 2 is a schematic perspective view of the cassette insertion portion of this embodiment, FIG. 3 is a front view showing the structure of the worm wheel and clutch gear, and FIG. FIG. 4 is a sectional view thereof, FIG. 5 is a detailed view showing the structure of the worm, and FIG. 6 is a front view thereof. 2... Cassette, 3... Drive motor, 4... Drive belt, 5... Worm shaft, 6... Worm, 8... Worm wheel, 9... Clutch spring, 10... Clutch gear, 11... Shaft gear , 12... Relay gear, 13... Relay gear, 14... Wiper gear, 15... Board,
16...side plate, 20...cassette holder.
Claims (1)
ホルダーと、該カセツトホルダーを所定の位置に
移動させるカセツト移動手段を有するカセツト式
磁気記録再生装置のフロントローデイング式カセ
ツト装着装置であつて、前記カセツト移動手段は
ウオームとウオームホイールを有するとともに、
前記ウオームとウオームホイールは各々カセツト
挿入時の衝撃を吸収するための第１のクラツチ機
構及び第２のクラツチ機構を有し、前記第１のク
ラツチ機構は圧縮コイルばねから構成されるとと
もに、前記第２のクラツチ機構はねじりコイルば
ねから構成され、第１のクラツチ力以上の衝撃が
加わつた際に第２のクラツチ機構が作動するよう
に構成したことを特徴とするカセツト装着装置。1 A front-loading type cassette mounting device for a cassette-type magnetic recording/reproducing apparatus comprising a cassette holder for guiding and holding the loading of a cassette, and a cassette moving means for moving the cassette holder to a predetermined position, which The means has a worm and a worm wheel, and
The worm and the worm wheel each have a first clutch mechanism and a second clutch mechanism for absorbing shock when inserting the cassette, and the first clutch mechanism is composed of a compression coil spring, and the first clutch mechanism is composed of a compression coil spring. A cassette mounting device characterized in that the second clutch mechanism is constituted by a torsion coil spring, and the second clutch mechanism is configured to operate when an impact greater than the first clutch force is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60051122A JPS61210552A (en) | 1985-03-14 | 1985-03-14 | Cassette loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60051122A JPS61210552A (en) | 1985-03-14 | 1985-03-14 | Cassette loading device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61210552A JPS61210552A (en) | 1986-09-18 |
| JPH0439144B2 true JPH0439144B2 (en) | 1992-06-26 |
Family
ID=12877997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60051122A Granted JPS61210552A (en) | 1985-03-14 | 1985-03-14 | Cassette loading device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61210552A (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6286569A (en) * | 1985-10-11 | 1987-04-21 | Hitachi Ltd | Magnetic recording and reproducing device |
| JPH07114050B2 (en) * | 1988-03-28 | 1995-12-06 | 三洋電機株式会社 | Cassette loading mechanism |
| JPH02199657A (en) * | 1989-01-27 | 1990-08-08 | Matsushita Electric Ind Co Ltd | Cassette loader |
| US5196971A (en) * | 1988-12-28 | 1993-03-23 | Kabushiki Kaisha Toshiba | Tape loading mechanism for use in magnetic recording/reproducing apparatus having tape control features for preventing damage to tape |
| JP2693541B2 (en) * | 1988-12-28 | 1997-12-24 | 株式会社東芝 | Cassette loading device |
| JP2850347B2 (en) * | 1989-02-10 | 1999-01-27 | ソニー株式会社 | Recording and / or playback device |
| US5038237A (en) * | 1989-08-30 | 1991-08-06 | Samsung Electronics Co., Ltd. | Power transmission and clutch mechanism for a cassette tape deck |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180845A (en) * | 1983-03-30 | 1984-10-15 | Imazaike Seikou Kk | Cassette shift driver in magnetic recording and reproducing device |
| JPS60647A (en) * | 1983-06-15 | 1985-01-05 | Hitachi Ltd | Cassette loading device |
-
1985
- 1985-03-14 JP JP60051122A patent/JPS61210552A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59180845A (en) * | 1983-03-30 | 1984-10-15 | Imazaike Seikou Kk | Cassette shift driver in magnetic recording and reproducing device |
| JPS60647A (en) * | 1983-06-15 | 1985-01-05 | Hitachi Ltd | Cassette loading device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61210552A (en) | 1986-09-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |