JPH0544897Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a switching mechanism for performing playback or recording operations of a tape recorder, for example.

``Prior Art'' Conventionally, there has been a technique in which a front case and an operation key are formed of synthetic resin molded products, the front case supports the operation key, and the key is connected to a switching lever of a tape recorder deck.

``Problem that the invention aims to solve'' In the prior art, the cylindrical fulcrum shaft of the operation key was integrally formed and this fulcrum shaft was fitted into the front case, so it was decided to make a prototype and check the dimensional accuracy. However, there were manufacturing problems such as the need to modify the molding die to correct dimensional errors.

"Means for Solving the Problem" However, the present invention attaches the operation key to the front case through the protrusion and the fitting hole, and rotates the operation key using the corner of the end face of the front case where the protrusion is provided as a linear fulcrum. The switching object is engaged with the engagement claw provided on the operation key, and a protrusion is provided on the side beyond the line fulcrum of the operation key that rotates freely in the blind hole of the front case. It is.

``Function'' Therefore, since the operation key is rotated by contacting the corner of the end face of the front case, there is no need for dimension adjustment work by making prototypes as in the past, making dimension setting easy and mold production and molding processing possible. This can be done easily.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Fig. 1 is an explanatory diagram of the main parts, and Fig. 2 is a front view of the audio complex machine. 4, an operating section 5, and a door 6 for allowing the compact disk to enter and exit, etc., are arranged on the front side of the vertical machine case 7.

Furthermore, as shown in FIG. 1, FIG. 3 to FIG. The tape recorder deck 9 is equipped with a tape recorder deck 9 for playback or recording, and the operation keys 8 are attached to a front case 10 in which the deck 9 is installed.

Further, the operation key 8 includes a push portion 8a,
Engagement pawls 12 and 13 that sandwich the switching lever 11 of the tape recorder deck 9, a protrusion 14 extending in a forward hook shape from the upper surface of the pusher part 8a, and a fitting hole 15 opened at the base end position of the protrusion 14. are formed by molding.

The front case 10 also includes a window 16 that allows the pusher portion 8a to move forward and backward to protrude outside the machine, a pivot portion 17 provided inside the upper end of the window 16, and a fitting hole 1.
5 and a blind hole 19 into which the protrusion 14 is inserted are formed by molding.

Then, the protrusion 18 and the blind hole 19 are connected to the pivot portion 17.
At the same time, the protrusion 14 is placed in the blind hole 19,
In addition, with the protrusion 18 inserted into the fitting hole 15,
As shown in FIG. 3, while the switching lever 11 is kept engaged with the engaging claws 12 and 13,
The lower opening edge of the blind hole 19, which is the corner of the end face, is set as the line fulcrum 20, and when the pusher part 8a is pushed in, the operation key 8 is rotated about the line fulcrum 20, as shown by the imaginary line in FIG. , the switching lever 11 is configured to slide.

Further, as shown in FIG. 5, the width A of the fitting hole 15 and the width B of the protrusion 18 are formed to be approximately equal, and by fitting them together, the left and right movement of the operation key 8 is restricted.
As shown in FIG. 6, the height C of the upper surface of the protrusion 14, the upper opening edge of the fitting hole 15, and the vertical width D of the blind hole 19 are formed to be approximately equal, and the fitting hole 15, the protrusion 18, and the protrusion 14 The vertical movement of the operation key 18 is restricted by the engagement of the blind hole 19 and the blind hole 19.

"Effects of the Invention" As is clear from the above embodiments, the present invention attaches the operation key 8 to the front case 10 through the protrusion 18 and the fitting hole 15, and the corner of the end face of the front case 10 where the protrusion 18 is provided. The operation key 8 is rotatable as a line fulcrum 20, and the switching object 11 is engaged with the engaging claws 12 and 13 provided on the operation key 8. The projecting part 14 is provided to freely rotate in the blind hole 19 of the front case 10, and since the operation key 8 is rotated by contacting the corner of the end face of the front case 10, it is not necessary to adjust dimensions by making a prototype as in the past. Practical applications such as eliminating the need for work, making it easy to set dimensions, making it easy to manufacture molds and molding processes, and easily reducing processing costs for forming the front case 10 and operation keys 8. It has a certain effect.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of the main parts showing an embodiment of the present invention, Fig. 2 is an overall external view, Fig. 3 is a side view of the main parts, Fig. 4 is a front view of the main parts, and Fig. 5 is an exploded view. Perspective view,
FIG. 6 is an exploded side view. 8...Operation key, 10...Front case, 1
5... Fitting hole, 18... Protrusion, 20... Line fulcrum.

Claims (1)

[Scope of utility model registration request] The operation key 8 is attached to the front case 10 through the protrusion 18 and the fitting hole 15, and the operation key 8 is rotatable using the corner of the end face of the front case 10 where the protrusion 18 is provided as a line fulcrum 20.
The object to be switched 11 is engaged with the engaging claws 12 and 13 provided in the front case 10, and a protrusion 14 is provided on the side beyond the line fulcrum 20 of the operation key 8 to freely rotate in the blind hole 19 of the front case 10. A switching mechanism characterized by: