JPS63102046U

JPS63102046U -

Info

Publication number: JPS63102046U
Application number: JP20256786U
Authority: JP
Priority date: 1986-12-23
Filing date: 1986-12-23
Publication date: 1988-07-02

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例の磁気テープ記録／
再生装置の簡略化した平面図、第２図は磁気テー
プ記録／再生装置の駆動系を示す図、第３図は磁
気テープの駆動装置３０付近の拡大図、第４図は
その分解斜視図、第５図はピンチオフ時における
磁気テープ記録／再生装置の平面図、第６図は第
５図示の要部拡大図、第７図はピンチローラ４１
のピンチオフおよび演奏時における動作を説明す
るための図、第８図は典型的な先行技術の斜視図
である。１１……磁気テープカセツト、２５……磁気ヘ
ツド、３０……磁気テープの駆動装置、３６……
ピンチローラ駆動用歯車、４０……キヤプスタン
、４３……第１回動部材、４４……枢軸、４４ａ
……案内部、４５……第２回動部材、４６……支
持部材、４６ｂ……当接部、４６ｂ１……当接面
、４７，４８……ストツパ、５０……突起、５１
……押圧片、５２……押圧部、５６，５８……引
張りばね、５７……ねじりばね、６０……駆動部
材。 Figure 1 shows magnetic tape recording/
A simplified plan view of the playback device, FIG. 2 is a diagram showing the drive system of the magnetic tape recording/playback device, FIG. 3 is an enlarged view of the vicinity of the magnetic tape drive device 30, and FIG. 4 is an exploded perspective view thereof. FIG. 5 is a plan view of the magnetic tape recording/reproducing device during pinch-off, FIG. 6 is an enlarged view of the main parts shown in FIG. 5, and FIG. 7 is a pinch roller 41.
FIG. 8 is a perspective view of a typical prior art device for explaining pinch-off and performance operations. 11...Magnetic tape cassette, 25...Magnetic head, 30...Magnetic tape drive device, 36...
Pinch roller driving gear, 40...capstan, 43...first rotating member, 44...pivot, 44a
...Guide portion, 45...Second rotation member, 46...Support member, 46b...Abutting portion, 46b1...Abutment surface, 47, 48...Stopper, 50...Protrusion, 51
... Pressing piece, 52 ... Pressing part, 56, 58 ... Tension spring, 57 ... Torsion spring, 60 ... Drive member.

Claims

[Scope of Claim for Utility Model Registration] In a magnetic tape drive device that runs and drives a magnetic tape between a capstan attached to a base and a pinch roller that can approach and separate from the capstan, one end of the tape is attached to the base. a first rotating member that is provided to be angularly displaceable; a second rotating member having one end that is pivotally supported near the other end of the first rotating member; and the other end of the second rotating member. a first spring that biases the pinch roller; a support member that pivotally supports the pinch roller, is supported so as to be angularly displaceable near the other end of the first rotating member, and has an abutment piece; and a second rotating member a stopper that is fixed and can come into contact with and separate from the abutment piece; a second spring that biases the support member in a direction in which the abutment piece abuts the stopper; and a second spring that applies the spring force of the first spring to the second rotation member. As a result, the pinch roller is biased toward the capstan by the spring force of the first spring, and in this state, there is a gap between the abutting piece and the stopper. A magnetic tape drive device characterized in that it includes such means.