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Automatic reverse winding mechanism of magnetic tape recorder

An automatic reversing and tape recorder technology, which is applied in the direction of operation and control of filamentary/network carriers, can solve the problems of inability to achieve miniaturization and increased friction loss

Inactive Publication Date: 2003-02-12
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, since the side of the switch lever is pushed by sliding with the pin of the drive lever, there are problems as follows: the friction loss increases, and when the battery voltage is insufficient, the action will stop during the operation; the switch lever and the drive lever must be flat. configuration, miniaturization cannot be achieved

Method used

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  • Automatic reverse winding mechanism of magnetic tape recorder
  • Automatic reverse winding mechanism of magnetic tape recorder
  • Automatic reverse winding mechanism of magnetic tape recorder

Examples

Experimental program
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Embodiment Construction

[0026] Embodiments are described below.

[0027] figure 1 It is a top view of a partial appearance of a magnetic tape recorder in one embodiment of the present invention, figure 2 is the back view of the appearance of the figure, image 3 is the partial exterior front view of the figure, Figure 4 is the partial appearance rear view of the figure, Figure 5 To mainly show the rear view of the electric motor power transmission system, Image 6 A rear view mainly showing the mechanical action system, Figure 7 for figure 2 Partial left view of , where (a) shows the stopped state, (b) shows the playing state, and the illustration shows the state without a cassette tape.

[0028] In the figure, 1 is a motor, which is fixed to a motor holder 3 fixed to a main board 2 with screws. A motor pulley 5 is press-fitted and fixed to the top end of the rotating shaft 4 of the motor 1 . 8 is a belt A, which straddles between the above-mentioned motor pulley 5 and a V-shaped groove ...

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PUM

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Abstract

Provided is the structure of automatic reverse mechanism capable of miniaturizing a tape recorder and stabilizing the operation under the deteriorated battery. This mechanism is furnished with a normal / reverse level 62, fulcrum pins A67a, B67b arranged at both ends of the lever, a direction lever 54 for changing over the tape running, resin springs A57a, B57b for pressing the normal / reverse level 62 to either one of the fulcrum pin, a detection lever 49 for pressurizing the normal / reverse lever 62, and a main gear 17 having a changeover cam 19a to make the detection lever 49 largely turn when the energizing force of a friction lever 28 is exhausted at the end of the tape. In this case, the normal / reverse lever 62 is turned by the detection lever 49 in accordance with the tape running when attained to the tape end, then the detection lever 54 is changed over to the forward or backward direction.

Description

technical field [0001] The present invention relates to an automatic reversing mechanism of a tape recorder which is effective mainly for miniaturization, thinning and cost reduction of the automatic reversing mechanism of an earphone type stereo cassette tape recorder and the like. Background technique [0002] Recently, in order to achieve miniaturization, thinning and cost reduction of automatic reversing mechanisms such as headphone stereo cassette tape recorders, the number of parts has been reduced and the mechanism has been simplified. The forward and reverse switching is performed by fixing the fulcrum with a spring or the like. , The top end is at an acute angle so as to switch to the reverse direction rewinding switch lever swings slightly, and the pin of the drive lever that acts as a cam at the end of the tape slides on the side of the switch lever and pushes the forward or reverse side. [0003] However, since the side of the switch lever is pushed by sliding wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B15/02
Inventor 石川和雄田中真一高瀬广明
Owner PANASONIC CORP
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