JPH0637548Y2 - Switch device for tape recorder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a recording device of a tape recorder represented by a cassette tape recorder with a radio receiver, and more particularly to a switch device thereof.

2. Description of the Related Art Recently, a radio receiver cassette tape recorder having a recording function is known.

FIGS. 5 to 7 show a conventional tape recorder recording apparatus. 5 to 7, 1 is a cabinet,
A mechanism 2 is attached, a recording operation lever 3 as a component of the mechanism 2 is provided, and a recording button 4 is fixed. A recording spring member 5 on which an initial load is not applied is fixed to the recording operation lever 3. Also,
A printed circuit board 7 to which a slide type recording switch 6 is attached is fixed to the cabinet 1. A rotatable recording conversion lever 8 is attached to the boss.

In such a structure, when the recording button 4 is pressed, the recording spring material 5 fixed to the recording operation lever 3 is pressed down, and the recording spring material 5 comes into contact with one end of the recording conversion lever 8 to rotate about the center of the boss as a fulcrum, thereby recording. When the other end of the conversion lever 8 comes into contact with the sliding portion 9 of the recording switch 6 and the recording button 4 is further pressed, the recording spring material 5 bends, pressing one end of the recording conversion lever 8 and rotating the recording conversion lever 8. Then, the sliding portion 9 of the recording switch 6 is pressed and slides, and the recording switch 6 is switched to electrically form a recording circuit. When the recording button 4 is pressed and the recording control lever 3 is locked,
The recording spring member 5 presses one end of the recording conversion lever 8 to rotate the recording conversion lever 8 and the other end presses the sliding portion 9 of the recording switch 6 so that the stroke of the recording switch 6 is pushed down. The part 9 is pressed and fixed. In addition, the recording head of mechanism 2 is lowered and ready for recording. At this time, the recording spring material 5 is the recording switch 6
A spring load for pushing down the sliding portion 9 is generated by the bending of the recording spring member 5. Further, the spring load of the recording spring member 5 when the recording operation lever 3 is overstroke must be within the guaranteed limit load on the mechanism 2. The movement amount of one end of the recording conversion lever 8 on the recording switch 6 side is the stroke amount of the recording switch 6 and the sliding portion 9 of the recording switch 6.
And the amount of movement of the recording conversion lever 8 and the initial gap, the amount of movement of the recording operation lever 5 must be equal to or greater than the above amount of movement, and the amount of movement of the recording operation lever 5 has already been determined by the mechanism 2. There is. The difference in the amount of movement at this time is the recording spring material 5
It is necessary to have a recording spring material 5 that can bend and generate a spring load satisfying the above conditions at that time.

However, when the above-mentioned difference in the moving amount cannot be obtained with the conventional device, the relationship between the spring load and the deflection is the recording spring material 5 having a sharp rising spring curve. However, there is a problem in that a stable spring pressure cannot be obtained due to the variation of the above and the variation of the mounting.

An object of the present invention is to provide a switch device capable of reliably and stably pressing and fixing a stroke of a sliding portion of a recording switch.

Means for Solving the Problems In order to solve the above problems, the switch device of the present invention is
The recording operation lever of the tape mechanism, the slide type switch having a stroke smaller than the stroke of the recording operation lever, and the spring material fixed to the recording operation lever so as to have a bend in advance are provided. It is characterized in that the stroke difference of the switch is used as the deflection of the spring member.

Effect The present invention covers the stroke of the recording operation lever for obtaining the spring pressure of the initial load with the recording spring material to which the initial load is not applied by using the recording spring material to which the initial load is applied due to the above-mentioned configuration. However, it is possible to obtain a smoother spring curve than the conventional recording spring. Therefore, a stable spring pressure can be obtained, and the recording switch can be reliably pressed and fixed.

Embodiment Hereinafter, a switch device according to an embodiment of the present invention will be described with reference to the drawings.

1 to 3 show an embodiment of the present invention. In FIGS. 1 to 3, 1 is a cabinet to which a mechanism 2 is attached. A recording button 4 is fixed to the recording operation lever 3 of the mechanism 2, and a rigid metal plate 17 is attached to the recording operation lever 3. Also, the recording switch 6
The printed circuit board 7 to which is attached is fixed to the cabinet 1. Further, the recording spring material 11 is attached to the recording conversion lever 8 by applying an initial load, and the recording conversion lever 8 is screwed to the step boss 13 formed so as to project from the cabinet 1.
It is tightened at 14. The recording spring material 11 is formed in a U shape and has a U-shaped bent claw 11a on one side.
The claw 11a is fastened and fixed to the recording conversion lever 8 with screws 15 while being locked in the hole 8a of the recording switching lever 8. In this way, the recording spring material 11 has a U-shaped bent claw 11a.
Is applied to the hole 8a of the recording conversion lever 8 to give an initial load to the recording spring material 11. FIG. 4 shows the spring curve of the recording spring material 11 and the spring curve of the conventional recording spring material 5, where a is a spring curve of the spring material 11 to which an initial load is applied, and b is a spring to which an initial load is not applied. It is a spring curve of the material 5. By applying an initial load to the recording spring material 11 in this way, a spring load within the guaranteed limit load of the mechanism is applied when the recording operation lever 3 overstrokes, which is the condition of the spring material of the conventional recording device. When the recording operation lever 3 is locked, the condition that the sliding portion 9 becomes in a state where the stroke of the recording switch 6 is pushed down surely is satisfied.

In such a structure, when the recording button 4 is pressed, the recording operation lever 3 is lowered, the rigid metal plate 17 presses one end of the recording conversion lever 8, and the center of the boss 13 is rotated as a fulcrum to be mounted on the opposite side. The recording spring material 11 which is in contact with the sliding portion 9 of the recording switch 6 is further pressed to press the recording operation lever 3
When is locked, the sliding portion 9 presses and fixes the sliding portion 9 in a state where the stroke of the recording switch 6 has been pushed down, and the recording operation lever 3 is locked. That is, the recording switch 6 is being pushed by the bending of the recording spring material 11. In addition, since the initial load is applied to the recording spring material 11, the required load can be obtained with a small amount of deflection.

Effects of the Invention According to the present invention as described above, by applying an initial load to the recording spring, the stroke of the recording operation lever of the mechanism can be gained, and not only can the recording switch be pressed down reliably, but more The required load can be obtained with a small amount of deflection. With the recording spring having an initial load, the recording switch can be pressed and fixed and switched reliably and stably with respect to component dimensions, variations, and mounting variations.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a recording device of a tape recorder of the present invention, FIG. 2 is a plan view of the main part of the same device, FIG. 3 is a front view of the same, and FIG. 4 is a recording device of the same device. FIG. 5 is a perspective view showing a recording apparatus of a conventional tape recorder, FIG. 6 is a plan view of the recording apparatus, and FIG. 7 is a side view of the same. 1 ... Cabinet, 2 ... Mechanism, 3 ... Recording operation lever, 6 ... Recording switch, 7 ... Printed circuit board,
11 ... recording spring, 8 ... recording conversion lever, 13 ... step boss, 14 ... screw, 9 ... sliding part, 17 ... rigid sheet metal.

Claims (1)

[Scope of utility model registration request] 1. A recording operation lever of a tape mechanism, a slide type switch having a stroke smaller than the stroke of the recording operation lever, a recording conversion lever for operating the slide type switch by operating the recording operation lever, and the recording. The operation lever and a spring member that bends due to the difference in stroke between the slide switches are provided, and the spring member has a tip at the tip of the recording conversion lever that has a deflection in a direction opposite to the operation direction of the recording conversion lever in advance. A tape recorder switch device characterized by being locked in a closed state.