JPS6342426Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of the operation button device of electronic equipment such as a VTR, and is an attempt to obtain stable operation of the operation button. Taking a VTR as an example, as shown in the partial perspective view of Fig. 1, there are operation buttons 2 corresponding to each operation mode such as playback, recording, fast forward, etc., and a display indicating which operation is being performed. Means are usually attached to the front panel 1. The structure of a conventional operation button device will be explained with reference to FIG. Each operation button 2 has an elastic part 2a
is connected to the connecting part 2b through the operation button connecting body 2.
is formed. The acrylic plate 3 is provided with a protrusion 3a that fits into the through hole of the front panel 1, and the light from the light emitting diode 4 is guided to the outside through this protrusion, thereby forming a display means. The front panel 1 is provided with a rib 1a, and after fitting into the through hole of the connecting portion 2b of the operation button connector 2 , the rib 1a is fused and the operation button connector 2 and the front panel 1 are connected. Ru. As shown in the figure, a portion of the operation button 2 protrudes from the through hole 1b of the front panel 1, and when pressed with a finger, it is rotated around the rib 1a to turn on the switch 5 on the printed circuit board 6. When the switch 5 is turned on, the light emitting diode 4 is turned on by a control circuit (not shown) to display which operation is being performed. When the pressure is released, the operation button 2 returns to its original position due to the elasticity of the elastic portion 2a. In such a conventional example, there is a high possibility that the fused portion of the rib 1a becomes fatigued due to repeated rotation of the operation button 2 and is damaged, causing the operation button connection body 2 to separate from the front panel 1. Furthermore, it is reasonable to place the display directly above the operation button (as shown in Figure 1) from both a design and operability standpoint (as the display is easy to see and closely related to the corresponding operation button). Therefore, since the acrylic plate 3 must be provided between the connecting portion 2b and the operation button 2, the elastic portion 2a
This results in a relatively complicated shape as shown in FIG. 2, which causes high costs. The present invention has been devised in view of the above-mentioned points, and it is an object of the present invention to provide an operation button device that is easy to install and has excellent durability. The embodiment of the present invention will be described below with reference to FIG. 3, which is a sectional view of the main part A, a back view of B, FIG. 4 which is a sectional view of the main part during operation, and FIG. 5 which is a partial perspective view showing the installed state. explain. Components that are the same as those in the conventional example are given the same drawing numbers, and explanations thereof will be omitted. Figure 7 is a reinforcing plate used in the present invention, which includes a mounting reinforcement part 7c that has a through hole and overlaps the connection part 2b of the operation button connection body 2 , and a frame 7b that protrudes in a comb-like shape from the installation reinforcement part 7c. It becomes more. A plate-shaped protrusion 7a is provided on the bottom surface of the frame 7b, passing through a hole in the front panel and guiding light from the light emitting diode 4. The bottom surface is in contact with the front panel when installed. The position where the frame body 7b is provided is such that the through hole of the connecting part 2b and the through hole of the mounting reinforcing part 7c are overlapped (same as the actual installation state), and the elastic part 2a is installed so that the light from the light emitting diode cannot be blocked. The frame body 7b is designed to fit into the notch part '. (See Figures 3 and 4). The operation button connection body 2 has a shape in which the operation button 2 is connected to a connection part 2b by an elastic part 2a', and the shape of the elastic part 2a' is different from that of the conventional one. Since the display means is provided immediately above the operation button (as shown in Figure 1), the shape of the elastic part must have a notch to allow the light from the light emitting diode 4 to pass through, as described above. Must be. However, since the horizontally elongated acrylic plate as in the conventional example is no longer used as a light guiding means, a straight thin elastic part 2 is used instead of the conventional arch-shaped elastic part 2a.
It becomes a′. Since the frame body 7b is adapted to fit into the notch of the elastic portion 2a', rotation of the operation button 2 is not hindered. The light emitting diode 4 slightly enters the frame 7b to reduce light leakage and enhance the lighting effect. At the time of installation, the through holes of the reinforcing plate 7 of the operation button coupling body 2 are overlapped (the reinforcing plate is on top), and the through holes are fitted into the ribs of the front panel 1, and the ribs are fused. That is, as shown in FIG. 3, the bottom surface of the frame body 7b and the connecting portion 2b come into contact with the front panel 1. Therefore, the operation button connector 2 and the reinforcing plate 7 (that is, also the light guiding means) can be fixed at the same time. As is clear from Figure 5, the reason why a part of the frame 7b (near the mounting reinforcement part) is missing is because space is required for fusing the ribs, and due to dimensional constraints, Needless to say, this is desirable.
The protrusion 7a of the reinforcing plate 7 penetrates the front panel 1, and even when the operation button 2 is pressed and rotated as shown in FIG. 7c, the durability of the fused portion is improved. In addition, the operation button connection body and the light guide means, which were previously attached separately, can now be attached at the same time, reducing the number of steps, and
The shape of a' becomes simple and the cost during molding can be reduced. As described above, the present invention not only provides an operation button device with improved durability and stable operation, but also reduces the number of processes and costs compared to conventional ones, improves lighting effects, and is more practical. be.

[Brief explanation of drawings]

Figure 1 is a partial perspective view showing the external appearance of the VTR.
FIG. 2 is a cross-sectional view of the main part of the structure of a conventional operation button device, and a back view of the same. 3 to 5 relate to an embodiment of the present invention, FIG. 3A is a sectional view of the main part, B is a back view, FIG. 4 is a sectional view of the main part during operation, and FIG.
The figure is a partial perspective view showing the attached state. Explanation of main drawing numbers, 1...Front panel, 2 ...
...Operation button connection body, 2...Operation button, 2a, 2a'...
Elastic part, 2b... Connection part, 7... Reinforcement plate, 7a...
...Protrusion, 7b...frame body, 7c...mounting reinforcement part.

Claims (1)

[Scope of Claim for Utility Model Registration] An operation button connection body comprising an operation button, a connection part having a through hole, an elastic part connecting the operation button and the connection part and having a notch in the center, a frame body, and the frame body. A reinforcing plate consisting of a protrusion provided on the bottom surface of the frame, a mounting reinforcing section having a comb-like shape and a through hole, the connecting section and the through hole of the mounting reinforcing section are aligned, and the elastic After fitting the frame into the notch of the section, the bottom of the frame and the connection are connected to a front panel having a through hole that fits with the operation button, a through hole that fits with the protrusion, and a rib. The operation button device is constructed by fitting the rib into the through hole of the connecting portion and the mounting reinforcing portion so that the portion contacts the front panel, and fixing the rib by fusing.