JPS62233Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lid opening/closing device for an operation panel of a television receiver, audio equipment, etc.

This type of operation panel is equipped with various push buttons, operation knobs, and switches, but the less frequently used operation knobs, such as those for adjusting sound quality and brightness, are usually kept in the pocket with a lid on the operation panel. It is stored. Incidentally, recent operation panels are made of aluminum exterior material and tend to be designed with emphasis on simplicity and functional beauty. In this case, the lid provided on the operation panel is required to have a correspondingly smooth and functional opening/closing device, and its quality has a great impact on the commercial value of the operation panel itself.

This invention was made in response to the above-mentioned requirements, and its purpose is to provide a lid opening/closing device for an operation panel that has operability and functionality suitable for the functional design of the operation panel. .

Hereinafter, embodiments of this invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an exploded perspective view of an operation panel to which a lid opening/closing device according to this invention is applied, and FIG. 2 is a cross-sectional view thereof. This operation panel 1
The device includes an exterior frame 2 made of aluminum and an interior board 3 made of synthetic resin attached inside the exterior frame 2. The exterior frame 2 is provided with an opening 4 having a substantially rectangular shape, and the interior board 3 is provided with an opening 4 having a substantially rectangular shape.
A recess 5 forming an operation knob storage pocket is provided in conjunction with the recess 5 . Three operation knobs 6, for example for adjusting sound quality, brightness adjustment, and image quality adjustment, are provided in this recess 5, but when not in use, these knobs 6 are closed by a lid 7 attached to the opening 4. It is becoming more and more covered. In this case, the lid 7 is attached to the operation panel 1 via the spacer 8.
On the other hand, on the operation panel 1 side, there is provided a release button 9 that is pressed when opening the lid 7, and a protruding rod 11 that is operatively connected to the release button 9 via a reversing mechanism 10. It is being

Referring to FIG. 3, the lid 7 is fitted inside the opening 4 with an aluminum lid main body 12 formed to complement the shape of the exterior frame 2, and on the back side of the lid main body 12 in a sliding manner. Synthetic resin back plate 1
It consists of 3. The lid main body 12 has a pair of C-shaped guide grooves 14, 14 formed on both sides thereof, and a guide protrusion 15 formed in a strip shape along the longitudinal direction at the center of the back surface. (See Figure 4). On the other hand, the back plate 13 has a flange 1 that slides into the guide grooves 14, 14.
6 and 16, and an engagement groove 17 that cooperates with the guide protrusion 15 are formed. In this case, the engagement groove 1
7 includes a tapered guide surface 19 connected to each other via a weir portion 18. Further, the back plate 13 is provided with a pair of rotation support shafts 20 and 21 and a hook 22, and one rotation support shaft 21 is rotatably supported in a bearing hole 23 bored in the interior board 3. However, the other rotating support shaft 20 is rotatably supported via a spacer 8. The hook 22 is slidably attached within an opening 24 formed in the back plate 13. That is, there is a hook 22 on the back side of the opening 24.
A first storage groove 26 for receiving a bar-shaped protrusion 25 integrally formed with the spring 27 and a second storage groove 28 for storing a hairpin-shaped spring 27 are connected to each other, and the hook 22 normally holds the spring 27. It is urged upward by 27. Note that the back plate 13 is attached to the lid body 12 by inserting its flanges 16, 16 into the guide grooves 14, 14. In this case, the guide protrusion 15 slides over the tapered guide surface 19 from one end side. When the guide protrusion 15 enters the engagement groove 17 and the other end of the guide protrusion 15 passes over the dam 18, it is completely fitted into the engagement groove 17. In this way, the lid body 12 and the back plate 13 are integrally coupled.

As shown in FIGS. 5 and 6, the spacer 8 is made of an L-shaped synthetic resin body, and is large enough to accommodate both the hook 22 and the protruding rod 11 with ample space. A window 31 opened to
2 and a screw hole 33 drilled on the interior board 3 side.
(see Fig. 1) and a corresponding mounting hole 34,
Align the mounting hole 34 with the screw hole 33 and screw 3.
5, it is firmly fixed to the interior board 3. In connection with this, an engagement hole 39 formed in the interior board 3 is provided at the upper end of the spacer 8.
A protrusion 38 is provided which fits within. window 31
A projection 36 that cooperates with the hook 22 is formed on the front upper edge of the bearing hole 32.
A slit 37 extending toward the fourth side is provided in a row. In this embodiment, the slit 37 does not communicate with the mounting hole 34, but is slightly bent by the tightening force of the screw 35. Therefore,
By adjusting the tightening force of the screw 35, the frictional force holding the rotary support shaft 20 in the bearing hole 32 can be varied, and the degree of opening of the lid 7 by manual operation can be appropriately selected.

The reversing mechanism 10 includes a flat scale-shaped rotating lever 41 that is pivotally supported by a support 40 that is erected on the interior board 3. The pivot lever 41 has a wing 42 that engages with the end of the release button 9 and a wing 43 that is connected to the rear end of the protruding rod 11. A tension spring 44 is attached that biases the pivot lever 41 counterclockwise in FIG. 2. Although not shown in detail in the drawings, the ends of the wing portions 43 are bifurcated, and each end is loosely fitted into a receiving groove 45 formed in the protruding rod 11. .

In the above-described configuration, in order to assemble the lid 7 to the operation panel 1, first, one rotation support shaft 20 is installed in the bearing hole 32 of the spacer 8. Next, the other rotating support shaft 21 is fitted into the bearing hole 23, and the upper projection 38 of the spacer 8 is engaged in the engagement hole 39, so that the mounting hole 34 is aligned with the screw hole 33. and attach it to the interior board 3 side. At this time, the protruding rod 11 enters into the window 31 of the spacer 8. Then, by tightening the screw 35 into the screw hole 33 through the attachment hole 34, the spacer 8 is firmly fixed to the interior board 3 side, and the lid 7 is properly attached in relation to the opening 4. However, in this case, by adjusting the tightening force of the screw 35 as described above, it is possible to select the holding friction force with respect to the rotating support shaft 20.

Next, the operation of this invention will be explained. This lid 7 can be closed with a one-touch operation. That is,
When a pressing force is applied to the lid 7, the hook 22 is inserted into the window 31 of the spacer 8, and the protrusion 36 of the hook 22 is inserted into the window 31 of the spacer 8.
After being pressed down against the biasing force of the spring 27, it returns upward and engages with the protrusion 36. In this case, since the ejector rod 11 is retracted by the tension spring 44 via the pivot lever 41 to the inoperative position shown by the solid line in FIG. Set to closed position.

On the other hand, when the release button 9 is pressed, the reversing mechanism 10
The ejector rod 11 is pushed forward, ie, into the operating position, as shown in phantom lines in FIG. Due to this pressing force, the hook 22 is forcibly pushed downward along the tapered surface of the protrusion 36 and released from its engaged state, thus opening the lid 7.
In this case, since the rotary shaft 20 of the lid 7 is frictionally held within the bearing hole 32 of the spacer 8, the lid 7 is held in the pushed open state by the protruding rod 11. Therefore, after pressing the release button 9, the user inserts his/her finger into the opened part and closes the lid 7.
The operation knob 6 is then adjusted by opening it to the fully open state. Of course, it is also possible to provide a spring means for biasing the lid 7 to open so that the lid 7 is fully opened when the hook 22 is released. Further, in this embodiment, a hook 22 is provided on the lid 7 side, but unlike this, a spring-biased hook is provided on the spacer 8 side, and a hook that cooperates with the hook is provided on the lid 7 side. It can also be modified to provide a mating protrusion.

As is clear from the above description of the embodiments, this invention provides a lid opening/closing device that allows the lid to be opened easily by simply operating a push button. Therefore, there is no need to provide a handle member or the like on the lid itself, and the operation panel can have a sophisticated, functional, and uniform design, and the product image can be improved.

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of the operation panel to which this invention is applied, Figure 2 is a cross-sectional view of the lid opening/closing device, and Figure 3 is a cross-sectional view of the lid opening/closing device.
The figure is an exploded perspective view of the lid, Figure 4 is a sectional view taken along the - line in Figure 3, Figure 5 is a vertical sectional view of the main part of the lid opening/closing device, and Figure 6 is a sectional view showing the spacer. . In the figure, 1 is the operation panel, 2 is the exterior frame, 3 is the interior board, 4 is the opening, 5 is the recess, 6 is the operation knob, and 7
is the lid, 8 is the spacer, 9 is the release button, 10 is the reversing mechanism, 11 is the protruding rod, 12 is the lid body, 1
3 is a back plate, 20 and 21 are rotating shafts, 22 is a hook, 23 is a bearing hole, 31 is a window, 32 is a bearing hole, 3
4 is a mounting hole, 37 is a slit, 41 is a rotating lever, and 44 is a spring.

Claims (1)

[Claims for Utility Model Registration] (1) A lid opening/closing device that is pivotally attached to an opening recess of an operation panel via a pair of rotating shafts, the bearing hole supporting one of the rotating shafts. a spacer fixed in the opening recess by a tightening means such as a screw; a releasable locking means provided between the spacer and the lid; and a releasing locking means provided through the operation panel. a button and operatively coupled to the release button via a reversal mechanism;
A lid opening/closing device for an operation panel, comprising a protruding rod that urges the lid outward by a pressing force from the release button and forcibly releases the locking means. (2) In the utility model registration claim (1), the spacer has a slit connected to the bearing hole, and the bearing hole is configured to tighten the tightening means transmitted through the slit. A lid opening/closing device for an operation panel, characterized in that a holding friction force with respect to the rotating shaft is adjusted by force. (3) A lid opening/closing device for an operation panel according to claim (1), wherein the locking means comprises a spring-biased hook and an engaging protrusion that cooperates with the hook. . (4) In claim (1) of the utility model registration, the reversing mechanism comprises a rotary lever including a pair of left and right wings extending in opposite directions across the axis of rotation, and one of the wings is A lid opening/closing device for an operation panel, wherein the other wing engages with the release button and is connected to the protruding rod. (5) In the utility model registration claim (4), the reversing mechanism includes a spring means that biases the protruding rod via the rotating lever toward an inoperative position in which it does not normally contact the lid. A lid opening/closing device in an operation panel comprising: