JPH021956Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a dial device for various types of audio equipment.

[Technical background of the invention and its problems] FIG. 5 shows a tape recorder equipped with a tuner device, and in the figure, reference numeral 1 indicates a main body of the cabinet that accommodates a cassette tape.
A cabinet front 2 is attached to the cabinet body 1 so as to be openable and closable. A dial device 4 is disposed on the side of the cabinet body 1, covered by a frame cover 3, and having a tuning pointer.

On the other hand, a viewing window 6 is formed on the side of the cabinet front 2 in correspondence with the viewing window 5 of the frame cover 3.

FIG. 6 shows details of the dial device 4.
In the figure, reference numeral 7 indicates a printed circuit board.
A frame body 10 having a sliding surface 9 on which the pointer 8 moves is arranged on the printed circuit board 7. The pointer 8 is moved on the sliding surface 9 by the dial mechanism 11. The frame body 10 has two ribs 12 and 13 formed on both sides of the frame. A viewing window 5 is formed for viewing the pointer 8 moving on the sliding surface 9 of the frame body 10.

On the other hand, through-holes 14 and 15 are bored at positions corresponding to the ribs 12 and 13 of the frame body, and screws 16 are inserted into these through-holes 14 and 15, and the screws 16 are inserted into the ribs 12 and 13 of the frame body 10. The frame cover 3 is fixed to the frame body 10 by screwing the screws 16 together.

However, in the dial device configured as described above, since the frame cover 3 is attached to the frame body 10 with the screws 16, an attachment part is required, and it is difficult to reduce the width W of the frame cover 3 beyond a certain degree. Another problem is that it is difficult to secure space for the ribs 12 and 13 in the frame body 10. Furthermore, since the screws 16 are used to fix the frame cover 3 to the frame body 10, there is a problem of increased cost.

[Purpose of the invention] The present invention has been made in response to the above-mentioned conventional circumstances, and it is possible to fix the frame cover to the frame body without using screws, thereby downsizing the dial device, and The present invention aims to provide a dial device that can reduce costs.

[Summary of the invention] That is, the present invention provides a dial device in which a frame cover having a U-shaped cross section and having a viewing window for the pointer is fixed to a frame body having a sliding surface for moving a pointer. A fitting claw or a fitting hole is formed at both ends in the longitudinal direction of the frame cover, and elastic ribs are formed at both ends of the frame cover, and the fitting hole or fitting hole formed in the rib is formed in the fitting hole or fitting hole. This is a dial device characterized by a locking pawl or a fitting hole.

[Embodiment of the invention] The details of the invention will be described below with reference to an embodiment shown in the drawings.

FIG. 1 shows an embodiment of the dial device of the present invention, in which reference numeral 10 indicates a printed circuit board 7.
It shows the frame body fixed to the top surface. A sliding surface 9 on which the pointer 8 moves is formed on the upper surface of the frame body 10. Pointer 8 is dial mechanism 1
1 allows it to move on the sliding surface 9. A pair of fitting claws 17 are formed to protrude from both ends of the frame body 10 in the longitudinal direction. Further, a pair of vertical positioning ribs 18 are arranged on the upper surface of the frame body 10 at regular intervals, and horizontal positioning ribs 19 are formed on both side surfaces.

In the figure, reference numeral 3 indicates a viewing window 5 for the pointer 8 in the center.
It shows a frame cover with a U-shaped cross section. At both ends of the frame cover 3, as shown in FIG.
is formed. This rib 20 has a fitting hole 21.
is drilled.

In the dial device configured as described above, as shown in FIG. The frame cover 3 is fixed to the frame body 10 by being engaged with the fitting hole 21 of the rib 20.

At this time, the vertical position of the frame cover 3 is determined by the vertical positioning rib 18 formed on the upper surface of the frame body 10, and the horizontal position is determined on both sides of the frame body 10, as shown in FIG. Positioning is performed by horizontal positioning ribs 19 formed on the surface. Therefore, in this state, the frame cover 3 is securely fixed to the frame body 10 without moving.

That is, in the dial device configured as described above, the frame cover 3 is attached to the frame body 10.
This can be achieved reliably by locking the fitting claws 17 of the frame body 10 into the fitting holes 21 of the frame cover 3, so that the assembly time can be significantly shortened compared to the conventional art. Furthermore, since no screws are used, no space is required for screws, and the dial device can be made more compact. Furthermore, since no screws are used, the cost of the dial device can be reduced.

In addition, in the embodiment described above, an example was described in which a fitting claw was formed in the frame body and a fitting hole was formed in the rib of the frame cover, but the present invention is not limited to such an embodiment. Of course, a fitting hole may be formed in the frame body and fitting claws may be formed in the rib.

[Effects of the invention] As described above, according to the dial device of the invention, screws are not required to fix the frame cover to the frame body as in the conventional case, so there is no need for space for fixing the screws, and the dial It is possible to downsize the device. Since no screws are required, the cost of the dial device can be reduced. Further, since assembly is performed simply by locking the fitting holes of the frame cover with the fitting claws of the frame body, the working time required for assembly can be significantly shortened compared to the conventional art.

[Brief explanation of the drawing]

Fig. 1 is an external view showing an embodiment of the dial device of the present invention, Fig. 2 is an external view showing ribs formed at both ends of the frame cover in Fig. 1, and Fig. 3 is an external view showing the frame cover on the frame body. 4 is a cross-sectional view of FIG. 3, FIG. 5 is an external view of a tape recorder equipped with a dial device, and FIG. 6 is a detailed view of the dial device of FIG. 5. FIG. 3... Frame cover, 5... Viewing window, 7...
Printed circuit board, 8... Pointer, 9... Sliding surface, 10
... Frame body, 17 ... Fitting claw, 20 ... Rib, 21 ... Fitting hole.

Claims (1)

[Claims for Utility Model Registration] (1) In a dial device comprising a frame cover having a U-shaped cross section and a viewing window for the pointer fixed to a frame body having a sliding surface for moving the pointer, the frame Fitting claws or fitting holes are formed at both ends in the longitudinal direction of the main body, and elastic ribs are formed at both ends of the frame cover, and the fitting holes or fitting holes formed in the ribs are fitted into the fitting holes or fitting holes formed in the ribs. A dial device characterized by locking mating claws or fitting holes. (2) The dial device according to claim 1, which is a registered utility model, characterized in that positioning ribs are provided on the top and side surfaces of the frame body to prevent the frame cover from shifting.