JPS6298030U

JPS6298030U -

Info

Publication number: JPS6298030U
Application number: JP19009885U
Authority: JP
Priority date: 1985-12-09
Filing date: 1985-12-09
Publication date: 1987-06-22

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示すもので録再
時の状態を示す側面図、第２図は第１図の下面図
、第３図はリールデイスク回転停止時の状態を示
す側面図、第４図は第３図の下面図、第５図は第
４図の線―の縦断側面図、第６図は第１図を
分解した斜視図、第７図は従来装置を示すもので
ビデオテープレコーダの走行系を示す平面図、第
８図は第７図の線―の縦断側面図、第９図は
第７図の下面図、第１０図は第７図の主要部分を
示すもので録再時の状態を示す平面図、第１１図
は第１０図を下からみた側面図、第１２図はリー
ルデイスク回転停止時の状態を示す平面図、第１
３図は第１２図を下からみた側面図である。図において、１０は巻取リールデイスク、２４
はクラツチ、２４ａは原動側円筒爪、２４ｂは従
動側円筒爪、２５は原動側部材、２６はリールデ
イスク側部材、２７は螺旋溝、２８はコイル状バ
ネ、２８ａは一端側、２８ｂは他端側である。な
お、各図中同一符号は同一または相当部分を示す
。 Fig. 1 shows an embodiment of this invention, a side view showing the state during recording and playback, Fig. 2 a bottom view of Fig. 1, and Fig. 3 a side view showing the state when the reel disk rotation is stopped. , Fig. 4 is a bottom view of Fig. 3, Fig. 5 is a vertical sectional side view taken along the line - in Fig. 4, Fig. 6 is an exploded perspective view of Fig. 1, and Fig. 7 shows a conventional device. A plan view showing the running system of a video tape recorder, FIG. 8 is a vertical sectional side view taken along the line in FIG. 7, FIG. 9 is a bottom view of FIG. 7, and FIG. 10 shows the main parts of FIG. 7. 11 is a side view of FIG. 10 viewed from below; FIG. 12 is a plan view showing the state when the reel disk rotation is stopped;
FIG. 3 is a side view of FIG. 12 seen from below. In the figure, 10 is a take-up reel disk, 24
is a clutch, 24a is a driving side cylindrical pawl, 24b is a driven side cylindrical pawl, 25 is a driving side member, 26 is a reel disc side member, 27 is a spiral groove, 28 is a coiled spring, 28a is one end side, 28b is the other end It's on the side. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Claims for Utility Model Registration] (1) A reel disk that supports a tape reel and rotates the tape reel, and a reel disk that engages and disengages along the rotational axis direction of the reel disk to cause the reel disk to rotate in one direction. 1. A reel clutch mechanism for a magnetic recording/reproducing device, comprising a clutch for transmitting force, and a coiled spring for guiding the movement of the clutch when the clutch is engaged and disengaged. (2) A reel disc in which the clutch is a pawl clutch, one end of a coiled spring is fitted and fixed to a driving side member having a driving side cylindrical pawl of the pawl clutch, and the pawl clutch has a driven side cylindrical pawl. A spiral groove is provided on the outer peripheral surface of the side member, and the other end of the coiled spring is wound around the spiral groove, and when the driving side member is driven in one direction, the rotation of the coiled spring causes the reel disk side member are pushed apart so that the driven side cylindrical pawl detaches, and when the driving side member is driven in the other direction, the driven side cylindrical pawl detaches due to rotation of the coiled spring in the opposite direction. In the state where the reel disk side member is pulled and the driven side cylindrical pawl is engaged, and when the driven side cylindrical pawl is engaged, the reel disk side member is driven. A reel clutch mechanism for a magnetic recording and reproducing apparatus according to claim 1.