JPS6145539Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a recording operation device that uses a conversion arm to move a switch lever in a direction perpendicular to when the recording operation lever is operated in one direction.

This type of recording operation device is used in, for example, a cassette tape recorder. Figures 1 and 2 show specific examples of conventional recording operation devices of this type. In the figures, 1 is a recording operation lever that operates in one direction, and 2 is a switch that is moved in a direction perpendicular to this. The levers 1 and 2 are arranged so as to be movable in the longitudinal direction by engaging fixing pins 4 in long grooves 3 formed in the respective levers. 7 and 8 are return springs, respectively. A conversion arm 6 rotatable about a shaft 5 is interposed between the recording operation lever 1 and the switch lever 2, and one end of the arm 6 is in contact with the tip of the recording operation lever 1, and the other end is in contact with the tip of the recording operation lever 1. The end is brought into contact with the locking portion 2A of the switch lever 2. In the case of FIG. 1, the tip of the recording operation lever that comes into contact with the conversion arm 6 is linearly inclined, and when the recording operation lever 1 is operated in the direction of arrow a, the tip of the recording operation lever 1 contacts the conversion arm 6. Along conversion arm 6
is rotated, thereby moving the switch lever 2 a predetermined distance in the direction of arrow b perpendicular to the recording operation lever 1. In the case of FIG. 2, the tip of the recording operating lever 1 that contacts the conversion arm 6 is flat, and when the recording operating lever 1 is operated in the direction of arrow a, the flat portion 11 at the tip Then, the conversion arm 6 is rotated, and the switch lever 2 is moved in the direction of arrow b.

However, in the case of such a recording operation device, for example, the configuration shown in FIG. 1, since the tip of the recording operation lever 1 that contacts the conversion arm 6 is inclined, the operating force during operation is comparatively small. Although it is light in weight, it has the disadvantage that the stroke (travel distance) _l1 of the recording operation lever 1 to move the switch lever 2 a certain distance is large;
In the case of the configuration shown in the figure, since the tip of the recording operating lever 1 is flat, the stroke _l2 of the recording operating lever 1 becomes smaller, but the operating force during operation becomes heavier. There were flaws. Such a recording operation device is particularly required to be easy to operate, such as a small cassette tape recorder, and is unsuitable for use in a place where installation space is limited.

In view of the above-mentioned points, the present invention provides a novel recording operation device that can reduce the stroke of the recording operation lever in the recording operation device as described above, and at the same time reduce the operating force during operation. It is something.

Hereinafter, the recording operation device according to the present invention will be explained with reference to FIGS. 3 and 4.

In the present invention, as shown in FIG. 3, a recording operation lever that operates in one direction and a switch lever 2 that operates the recording switch 12 that is moved in a direction perpendicular to the recording operation lever are provided. A conversion arm 6 is placed between the two. Both levers 1 and 2 are arranged so as to be perpendicular to each other, and fixed pins 4 are engaged in long grooves 3 formed in the respective levers, so that the levers are movable in the longitudinal direction of the levers. At the end of the lever 2 is an operating piece 1 that operates the recording switch 12.
3 are integrally formed. 7 and 8 are return springs attached to levers 1 and 2, respectively. The conversion arm 6 is rotatably arranged around the shaft 5, and its one end 6a is connected to the tip of the lever 1, that is, the acting part 1 for the conversion arm 6.
4, and the other end 6b is brought into contact with the locking portion 2A of the lever 2. The action part 14 of the lever 1 is
It has an inclined part 15 that is curved and inclined with a predetermined curvature toward the rear from the tip, and a flat part 16 that continues from the lower end of the curved inclined part 15. 1
7 is a relief recess of the conversion arm 6.

In the above configuration, when the lever 1 is operated in the direction of the arrow a from the non-operated state shown in FIG.
In the figure, the lever 2 is rotated clockwise, and the lever 2 is moved in the direction of arrow b, and after passing through the inclined part 15, the conversion arm 6 is further rotated by the flat part 16, as shown in FIG. The lever 2 is moved to a predetermined distance, and the recording switch 12 is turned on by the operating piece 13. In this case, in the initial state of operation (when the conversion arm 6 is in a substantially vertical state as shown in FIG. 3), the conversion arm 6 is pushed up by the inclined portion 15 of the lever 1, so the operating force is relatively light; When the conversion arm 6 is tilted sufficiently, it is pushed up by the flat part 16, so the operating force is light at this time as well, and overall, the lever ₂ can be moved a predetermined distance with a short stroke of the lever 1. can.

As mentioned above, according to the present invention, the recording operation lever can be adjusted by using the conversion arm that rotates around the shaft.
In a recording operation device that moves a switch lever in a direction perpendicular to the above direction when operated in the above direction, the shape of the acting portion of the recording operation lever that comes into contact with the conversion arm is shaped as shown in Fig. 3. , it is possible to reduce the stroke of the recording operation lever and at the same time reduce the operating force during operation, and is applicable to recording operation devices that are used in a limited space, such as small cassette type tape recorders. This makes it suitable.

[Brief explanation of the drawing]

1 and 2 are plan views showing an example of a conventional recording operation device, FIG. 3 is a plan view showing an example of a recording operation device according to the present invention, and FIG. 4 is a diagram showing its operating state. 1 is a recording operation lever, 2 is a switch lever, 6 is a conversion arm, 15 is a curved inclined portion, and 16 is a flat portion.

Claims (1)

[Scope of utility model registration request] A recording operation lever that operates in one direction, a switch lever that is moved in another direction perpendicular to the one direction, a recording switch that is operated by this switch lever, and returning the switch lever. A return spring, one end of which is locked to the switch lever, is rotatably arranged between the recording operation lever and the switch lever, and one end is connected to the recording operation lever, and the other end is connected to the switch. a conversion arm that acts on the recording operation lever and moves the switch lever in the other direction when the recording operation lever is actuated; A recording operation device comprising: a continuous flat section parallel to the other direction;