KR930005638B1 - Knob - Google Patents

Abstract

The knob selects various functions of the electronic apparatuses, and displays coloured lights correspondent to the selected function. The knob comprises a function display (11) transparently forming characteristic characters and symbols expressing cassette tape recorder drive functions or radio drive functions; a transparent reflector (1) positioned in front of a housing (2); a rib (23a) formed around a plurality of holes (21,21',21",21'",23) perforated in the housing (2); hooks (24,24') formed in the upper and lower part of the housing (2); a support means (26) for preventing double operation; a plurality of tack switches (41,41',41",41'") formed in a printed circuit board (4); small-sized lamps (42,42') positioned between the tact switches and displaying the correspondent function.

Description

Multifunction Display Knob

1 is an exploded perspective view of the present invention.

Figure 2a is a detailed view of the multifunction knob of the present invention, b is a detailed view of the multifunction knob mounting bracket of the present invention.

Figure 3 is a rear perspective view of the multi-function knob mounting bracket of the present invention.

4 is a cross-sectional view of the assembled state of the present invention.

5 is a cross-sectional view taken along the line A-A of FIG.

* Explanation of symbols for main parts of the drawings

1: Reflector 2: Housing

2a: border 3: sponge

4: printed circuit board 5: multi-function display knob

11: screen printing

11a: cassette tape function display unit

11b: radio function display unit 13: fixed shaft

21,21 ′, 21 ″, 21 ′ ″, 23: Through

21a: rib 22: pressing piece

24,24 ′: Hook 27: Nymph

28: insertion groove 31,32,33,34: through hole

41,41 ′, 41 ″, 41 ′ ″: Tact switch

42,42 ′: Lamp 44,44 ′: Hole for hook

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knob for selecting a unique function in an electric and electronic device. In particular, as one knob, various functions can be selected as one knob, and each function selected according to the selection of the function is illuminated. To a multifunction display knob that can be checked.

Conventional knobs have generally been able to manipulate on (start) to select a unique function and off (end) to end a started function.

However, in order to easily check the position or adjusted state of the knobs, the light was shining from behind the knob, and the light could confirm the position of the knob or the adjustment state of the knob.

However, conventional knobs are provided separately, so that when the device is designed to be compact, it is required to integrate several function-specific knobs. Installed a tact switch.

And, the most important configuration is that the knob is inclined accurately in the direction of the tact switch. If the knob is not tilted in the direction of the tact switch connected to the desired function, the predetermined function cannot be selected.

In addition to such a tilting state of the knob, the above-described conventional knob illuminates the selected function with light, but it is easy to check whether the function is selected, but it is not easy to illuminate the knob. Confirmation of function selection in the integrated knob was difficult to read as illumination.

The present invention has been made in view of the above-described conventional problems, and the main object is to solve the conventional problems.

Another object of the present invention is to enable a knob to be inclined precisely toward each function in a multifunctional integrated knob.

In addition, another object of the present invention is to ensure that only letters or symbols related to the corresponding function among the integrated functions according to the selection of each function is turned on and confirmed.

In order to achieve this purpose, the knob is required to form a small size as small as possible, and each lamp is a small lamp for each function is turned on by color, and a passage for preventing the light of the small lamp for each color is mixed in the knob is required, Passing knobs are required to be characterized by their own characters or symbols.

The present invention provides the following embodiments to satisfy the above needs.

EXAMPLE

The multifunction display knob 5 includes a transparent reflector 1 having a characteristic letter or symbol for each function, a passage preventing the light of a small lamp for each color from being mixed, a tact switch movable member, and a flow member for the flow of the knob. It consists of a housing (2) and the elastic member (3) and the printed circuit board (4) is coupled to the housing in the state where the tact switch and the small lamp is installed.

In the present invention, the reflector 1 made of a transparent material is formed with characteristic characters and symbols for each function, which may be formed by the screen printing layer 11, and the screen printing layer 11 may be formed on the rear side of the reflector rather than on the front side. Screen printing is efficient. If the screen printing layer is formed on the front side of the reflector 1, the material touch and transparency are covered by the printing layer, and since it is in contact with the outside, the part of the printing layer is scratched or peeled off and the light transmission effect is effectively Phenomenon that cannot be obtained easily occurs

Therefore, it is most suitable to form the screen printing layer 11 on the rear surface of the reflector 1.

Characteristic characters and symbols of the function formed on the screen printing layer 11 are printed in the case of cassette tape drive function REW, FF, CH, EJ, and radio drive (SEEK, SEEK UP and SEEK down) ), MAN (manual up and manual down), etc. are printed.

In the printing state, the entire screen of the reflector 1 is printed while the symbols and the text portions are not printed so that the screen printing layer 11 having the light-transmitting portion 1 in the form of letters or symbols through which light is transmitted is formed. .

The reflector 1 in which the screen printing layer 11 is formed is preferably formed of a transparent acrylic material for light transmittance.

At the center rear end of the right and left side walls of the transparent reflector 1, a clamping shaft 27 is formed to which the clamping piece 27 can be fitted.

In the present invention, the housing protrudes the clamping piece 27 for fixing the fixed shaft of the reflector 1 on the front surface so that the fixed shaft 13 of the reflector 1 is fitted into the clamping groove 28 of the clamping piece 27. The reflector 1 is fixed to the housing 2 in the fitted state.

In the above four corners of the front of the housing (2), holes (21, 21 ', 21 ", 21'") for the tape function display are drilled in accordance with the position coinciding with the function display of the reflector (1). Form.

In addition, although the through holes 21, 21 ', 21 ", 21' " are coincident with the function indications of the reflector 1, the tact switch for setting the tape drive function provided in the printed circuit board 4 ( 41) (41 ') (41') (41 '″).

In the housing 2, the tact switches 41, 41 ', 41 " and 41' " of the respective functions must be turned on and off. (21 '"), it is formed by protruding the pressing piece 22 from the inner wall surface of the through hole in order to press the tact switch.

On the front of the housing 2 through which the holes are drilled, a hole 23 for displaying a radio function is drilled, which is formed in a shape of “” so as to coincide with the radio function indicator printed on the transparent reflector 1. The configuration of the through holes is guide ribs for preventing left and right flow of the housing 2 toward the rear side of the support where the support is formed in the through hole 2 for displaying the radio function of the housing 2 by the ribs 21a and 23a. (29) is formed to protrude, and the end of the guide boss (29) protrudes to form a guide projection (29a) fitted into the guide hole 43 of the printed circuit board (4).

Then, the lock pieces 24, 24 'are projected in the horizontal direction at the lower end position on the back side center of the housing 2.

The hook pieces 24 and 24 'protruding in the horizontal direction serve to prevent the separation of the printed circuit board 4 from being separated. In the present invention, the hook pieces allow the housing to flow to the upper and lower edges. The jaw 24a of (24) (24 ') is formed to be curved.

The guide bosses 29 and the hooks 24 and 24 'are formed by protruding from the surfaces of the ribs 23a and the ribs extending from the through holes of the housing 2.

In addition, at both centers of the back surface of the rim of the housing 2, it is formed by protruding the support members 26 and 26 'for preventing double operation.

As described above, the hook pieces 24 and 24 'protruding from the inner surface side of the housing are formed to have a length fitted to the printed circuit board 4 through the sponge 3, and in this state, the guide bosses 29 and 29 are provided. '' Is formed to have a length that touches the surface of the printed circuit board 4, the double-preventing boss 26 is formed to a length smaller than the length of the guide boss (29) (29 ').

The sponge 3 formed to provide elasticity to the housing 2 is formed in the size of the housing, and the sponge has through holes 31 and 31 ′ in a configuration position protruding from the rear surface of the housing or protruding from the printed circuit board 4. Drilled through (31 ″) (31 ′ ″) 32 (33) (33 ′) 34.

On the printed circuit board 4 on which the sponge 2 is placed and the housing 2 is coupled, the small lamps 42, 42 'of different colors and several tact switches 41, 41', 41 ″) (41 ′ ″) is installed and formed by drilling hook insertion holes 44 and 44 ′ and drilling guide hole 43.

The printed circuit board 4 is provided with the tape function display small lamps 42 and 42 'at the center of the area where the housing 2 is installed, and the small lamp 42 for tape display on both sides of the small lamp in the center thereof. ′) Is installed.

It is desired that the tape function indicator lamp be blue and the radio function indicator red because the small lamps 42 and 42 'are different in color than the ones having the same color.

In the embodiment of the present invention having such a configuration, the sponge 3 is placed on the printed circuit board 4.

Thus, through the holes drilled in the sponge 3, several tact switches 41, 41 ', 41 ", 41'", lamps 42, 42 ', and hook holes 44 and 44' are provided. ) And through holes 43 and 43 'for the guide boss.

Then, the housing 2 is placed on the sponge 3, and the hooks 24 and 24 ′ of the housing 2 pass through the through holes 33 and 33 ′ of the sponge. 44, 44 ', the double-prevention support piece 26 on both sides of the knob comes into contact with the surface of the printed circuit board 4, and the sponge 3 gives elasticity to the housing 2.

At this time, the amber lamp 42 located at the center is positioned in the central hole of the housing 2, that is, the radio function display hole 23, and the blue lamp 42 'for the tape function indication located at the left and right is a rib of the hole ( It is installed in the space between 23a) and the edge.

In the assembled state as described above, when the tape drive function is selected, the small lamp 42 'for displaying the tape function, that is, the blue lamp is turned on.

As described above, when the blue lamp is turned on, the light moves along the space between the ribs 23a and the rim of the housing 2, and the light passes through the holes 21, 21 ', 21 " ″ ″) And the tape function markers of the transparent reflector 1 installed on each function display aperture 21, 21 ', 21 ″, 21' ″, ie FF, REW, CH, EJ. Light is shining through the transparent portion of the user to read the blue characters.

Afterwards, when the portion of the knob 5 on which the function to be selected is printed is pressed, the knob 5 is inclined in the upper and lower corners of the left and right sides by the support piece 26 for preventing double operation.

At this time, when the center of the knob is pressed, the double-prevention preventing support piece 26 is in contact with the printed circuit board 4 so that it cannot be pressed, thereby preventing malfunction.

Alternatively, the rib 23a clearly illuminates only the display of the selected functional part, which acts to block the light to be directed to the center portion of the housing 2 in addition to the action of inducing blue light into the through hole.

That is, by selecting the tape function, the display portion 11a of the REW, FF, CH, and EJ is turned on by the blue light of the blue small lamp 42 '. When the function is pressed, the REW portion or the EJ portion of the reflector 1 is pressed. The corresponding function will be activated.

When the radio function is selected later, the blue lamp 42 'for tape is turned off and the amber lamp 42 is turned on.

The light at this time is illuminated by the radio function display portion 11b of the reflector 1 through the central hole 23.

Therefore, the red light does not escape to the other place by the rib 23a of the central through hole 23, but only the radio function display portion 11b printed on the reflector 1 is illuminated.

Therefore, “SEEK” and “MAN” of the radio function are revealed, and the user selects one of the four corners of the reflector 1 and controls the tact switch with the pressing piece 22 to control the SEEK up, down, MAN You can select up and down.

At this time, the sponge 3 should use a black system so that blue or amber light, which is turned on when the function is selected, absorbs the light exiting into the gap between the housing 2 and the printed circuit board 4 so as not to illuminate another place.

As described above, in the present invention, the housing coupled to the transparent reflector is pressed by the upper and lower four corners by the support piece and the hook piece for preventing double operation so that the light of the lamp lit by the selection of each function is It can be seen through the reflector without interference, and the user's function selection can be clearly expressed and confirmed at the same time, and the function can be easily distinguished by light according to the selected function.

Claims (9)

A transparent reflector 1 provided on the front of the housing 2 having a function display unit 11 transparently defining characters and symbols characteristic of a cassette tape driving function and a radio function, and a through hole 21 of the housing 2. The light illumination path divided by the ribs 23a and the rim 2a formed around the 21 ', 21 ", 21'", 23, and the hooks 24 and 24 'formed at the upper and lower sides of the housing back, The housing 2 and several tact switches 41, 41 ', 41 ", 41 which are pressed together with the sponge 3 by the support piece 26 for preventing double operation from the printed circuit board 4 to the upper and lower edges. ″ ″ Is installed at the position of the printed circuit board 4 corresponding to the through-pressure pressing piece 22 of the housing 2, and the small lamps 42 and 42 'for each function are installed between the tact switches and the hooks of the housings. The display portion of each functional part is different in color, including a printed circuit board 4 having coupling holes 44, 44 'and guide pin holes 43, 43'. Multi-function display knob, characterized in that composed of a phase. The multi-function display knob according to claim 1, wherein the function display portions (11a) (11b) having the characters and symbols characteristic of cassette or radio are formed by screen printing on the back of the transparent reflector (1). 2. The fixed shaft 13 protruding from both sides of the transparent reflector 1 and the clamping piece 27 protruding toward the front surface of the housing 2 according to claim 1, wherein the coupling between the transparent reflector 1 and the housing 2 is carried out. Multifunction display knob, characterized in that configured to be fixed by. The cassette tape function display portion (11a) displayed on the transparent reflector (1) and the through holes (21) (21 ') (21 ") (21'") of the housing (2) are provided at four corners. Multi-function display knob, characterized in that formed by dividing and the function display portion (11b) of the radio and the through hole (23) of the housing is formed in the center of the cassette function display portion. The multifunctional according to claim 1, wherein the pressing pieces 22 for pressing the tact switch are formed in the through holes 21, 21 ', 21 ", 21'", which are drilled at four corners of the housing 2, respectively. Display knob. The hook 24 is formed by projecting the center of the lower end on the rib 23a of the central through hole 23 of the housing 2, and forming a hook 24. A multifunction display knob, which is formed by protruding the preventing support piece 26. The guide hole (29) (29 ') for protruding the left and right flow of the housing to the radio function display hole (23) of the housing (2), the guide hole (opened in the printed circuit board 4) 43) (43 '), characterized in that the multi-function display knobs configured to be inserted. The method of claim 1, wherein the sponge (3) installed between the housing (2) and the printed circuit board (4) is formed of a black cow formed to prevent the interference of light flowing between the housing and the printed circuit board (4) Display knob. The hook 24 of the housing 2 is formed such that the curved surface 24a is formed at the tip of the tip of the housing 2 so as to form a contact side at the through holes 44 and 44 'of the printed circuit board 4. Multifunction display knob, characterized in that.