JPH0515558U - Illuminated push button structure for telephones - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Efficiently irradiate the button with light from the light emitting element. [Structure] A light emitting element 42 installed below an irradiation button portion is surrounded, and a rib portion 43 is provided to reflect light from the light emitting element 42 to the upper button portion 41 without any light absorbing material. This enables efficient irradiation of the button part.

Description

[Detailed description of the device]     [0001]   [Industrial applications]   The present invention relates to a lighted push button structure of a telephone, and particularly to a telephone with increased display brightness. Of the lighting push button structure.     [0002]   [Prior Art]   Various functions such as answering machine settings have been set with the remarkable increase in functions of telephones in recent years. There are multiple pushbuttons installed for this purpose. When this push button is pressed, the function Is set to notify the user by illuminating the push button. . For this purpose, a method of incorporating a light-emitting element in the push button itself, How to attach a light emitting element to the internal space of the tongue and illuminate the push button with light from the light emitting element There is an expression, but in general, the latter method is often adopted.     [0003]   FIG. 3 is a front view showing an example of a conventional telephone having a lighted push button. ing.   The handset 2 is placed on the housing 1 of the telephone, and the dial key portion 3, Push button portions 4A and 4B and a display portion 5 are provided. Structure of push button parts 4A and 4B The structure is the same, and the AA cross-sectional view of the push button portion 4A is shown in FIG.   Inside the housing 1, a board 6 on which the functional circuit of the telephone is mounted is provided. Also, an opening is formed in the mounting portion of the push button portion 4A of the housing 1. Has been. A cylindrical partition wall 11 is integrally formed with the housing 1 between the opening and the substrate 6. Is shaped. The button portion 41, which is the pressing portion of the push button portion 4A, has a milky white color, for example. It is made of a light-transmitting material, and its peripheral portion extends below the opening of the housing 1. It has a long portion 47.   On the substrate 6 near the central portion of the partition wall 11 (position facing the central portion of the button portion 41), For example, a light emitting element 42 such as an LED is attached. In addition, the light emitting element 42 is From an elastic material such as rubber with a U-shaped cross section with a concave center A cylindrical intermediate member 46 is provided. The central portion 46A of the intermediate member 46 is The thin-walled structure improves light transmission. Contact forming portion side of the intermediate member 46 And the rubber member 61 installed on the other part of the substrate 6 are connected by the thin link part 48. Thus, the elasticity provides a repulsive force to the pressing of the button portion 41.   A contact portion 40 is formed at the lower end portion of the intermediate member 46, and the contact portion 40 is formed on the push button 4A. When the button portion 41 of is pressed, the intermediate member 46 is also pressed, and the contact portion 40 is The push button is electrically contacted with the contact section 60 formed on the corresponding section on the substrate 6 side. The function corresponding to button 4A is set. In such a structure, the push button 4A When a predetermined function is set by pressing, the light emitting element 42 is turned on. At this time, The light emitted from the optical element 42 passes through the central portion 46A of the intermediate member 46 and the button portion 4 The user is informed of the function setting state by irradiating 1 from the inside.     [0004]   [Problems to be solved by the device]   As described above, in the conventional illuminated push button structure of the telephone, the telephone housing The light emitted from the light emitting element installed inside A thin central portion 46A, which is the bottom of a cylindrical central member 46 having a lower end The button portion 41 is made to pass through and irradiated.   However, in such a structure, the light from the light emitting element 42 is directed vertically upward. The fluttering light effectively reaches the button portion 41, but the lateral light does not reach the button portion 41. The effect is not reached, and it cannot be said that the button portion 41 is efficiently irradiated. Also intermediate Since light is absorbed also in the central portion 46A which is the light passage of the member 46, the light is emitted from the light emitting element 42. Light transmission in the vertical direction is not efficient either.     [0005]   Therefore, the purpose of the present invention is to efficiently irradiate the button portion with the light from the light emitting element. It is to provide a lighted push button structure for a telephone.     [0006]   [Means for Solving the Problems]   In order to solve the above-mentioned problems, the lighted push button structure of the telephone according to the present invention is   The pushbutton attached to the housing of the telephone is used to attach the luminescent element inside the housing. In the lighting type push button structure of the telephone that illuminates with light from the child and lights up,   Surrounding the light emitting element, opening to the push button side, of the light from the light emitting element At least the light traveling in the lateral direction is reflected on the push button side so that it can be irradiated. It is configured by including a rib portion having a reflective surface.     [0007]   [Action]   In the present invention, the light emitting element installed under the irradiation button is surrounded by the light emitting element. Reflect the light from the child to the upper button without any light absorber. By providing such a rib portion, it is possible to efficiently irradiate the button portion.     [0008]   【Example】   Next, the present invention will be described with reference to the drawings.   FIG. 1 is a sectional view showing an embodiment of a lighted push button structure of a telephone according to the present invention. FIG. 4 is a sectional view of the push button portion 4A shown in FIG. 3 similar to FIG. In Figure 1 In addition, the components designated by the same reference numerals as those in FIG. 4 indicate the same components.   In this embodiment, the housing 1 has a partition wall 11 formed integrally with the housing 1. The button portion 41 located below the ring 1 at a predetermined angle of contact with the peripheral portion of the button portion 41. Cylindrical legs 44 are provided that are made of the same material as the interstitial member 46. This cylindrical shape The − side of the leg portion 44 does not have the thin center portion 46A as shown in FIG. 4, and the other side is on the substrate 6. The rubber member 61 and the thin link portion 45 made of the same material as that of the button member. A repulsive force and an elastic force with respect to the pressing of the portion 41 are given.   Further, in this embodiment, in the vicinity of the position facing the central portion of the button portion 41 on the substrate 6, Cylindrical rib 43 as shown, the wall thickness of which decreases as it approaches the opening. Is attached. The inner surface of the rib 43 is made of a material having good light reflection characteristics. It may be formed of a material, or the inner surface thereof may be coated with a reflective material. Also rib The light emitting element 42 is mounted on the substrate 6 on the side opposite to the opening of 43.     [0009]   In the above structure, the inner surface of the rib 43 is inclined toward the button portion 41. Therefore, the light emitted from the light emitting element 42 in the lateral direction or in the lateral downward direction is also affected by the button portion 41. Since it is reflected toward the side, the light from the light emitting element 42 is efficiently emitted from the button portion 41. Is irradiated. Further, the light emitted from the light emitting element 42 in the vertically upward direction is generated by There is no light absorption member in the middle path like the central part 46A of the structure of Therefore, efficient irradiation is possible.   In addition, a plurality of cylindrical legs 44 are provided at a predetermined angle along the peripheral edge of the button 41. In this embodiment, as shown in FIG. 2, six pieces are installed at 60 degree angle intervals. ing. In addition, the rib portion 43, the cylindrical leg portion 44, the link portion 45 and the rubber portion 61 are , The integral molding reduces the number of parts to be assembled, which not only facilitates the assembly but also It also contributes to the reduction of strikes.     [0010]   [Effect of the device]   As described above, the illuminated push-button structure of the telephone according to the present invention has an irradiation button. Surrounds the light emitting element installed under the light emitting part, and the light from this light emitting element goes up. Since the button part has a rib that reflects without passing through any light absorbing material, Efficient irradiation of the tongue is possible, and brighter button surface emission is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of an essential part showing an embodiment of a lighting push button structure of a telephone according to the present invention. FIG. 2 is a plan view showing an arrangement example of rib portions in the embodiment of FIG. FIG. 3 is a front view of a telephone having a general lighted push button. FIG. 4 is a cross-sectional view of essential parts showing an embodiment of a conventional lighted push button structure for a telephone. [Explanation of Codes] 1 Housing 2 Handset 3 Dial part 4A, 4B
Illuminated push button 5 Display 40, 60
Contact 41 Button part 42 Light emitting element 43 Rib part 44 Cylindrical leg parts 45, 48 Link part 46 Intermediate member 46A Central part 47 Extension part 61 Rubber member

Claims (1)

[Claims for utility model registration] In a push-button structure of a telephone in which a push-button mounted on a housing of a telephone is illuminated by light emitted from a light-emitting element inside the housing, the push-button structure enclosing the light-emitting element and pressing the push-button. A telephone having a rib portion having a reflecting surface which is open to the button side and reflects at least the light traveling in the lateral direction from the light emitting element toward the push button side. Illuminated push button structure.