JP2003059365A - Operation button mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an operation button mounting device capable of surely pressing a switch by restraining inclination of the operation button even when an edge of the operation button is pressed by an operator when a distance between the operation button and the switch is large. SOLUTION: This device is provided with: the operation buttons 15 depressed and operated by an operator; operation button guide means 27 for guiding the depression of the operation buttons 15; the switches 17 mounted on a printed circuit board 18 separated a predetermined distance in the depressing direction of the operation buttons 15; operation button leg parts 15d mounted to the operation buttons 15 so as to abut on the switches 17 by projecting in the depressing direction of the operation buttons 15; and a leg part support means 30 for supporting the leg parts 15d.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operation button mounting device for an operation input section provided in an audio device mounted on a vehicle.

[0002]

2. Description of the Related Art Conventionally, an operation button attaching device for an operation input portion provided in a plastic case housed in a front cover of an on-vehicle electronic device or the like and operated by an operator is shown in FIG.
As shown in (a) and (b), the operation button 91 that is pressed by the operator, the operation button guide 92a that guides the pressing of the operation button 91, and the predetermined interval in the pressing direction of the operation button 91. And a switch 94 mounted on the printed circuit board 93, an operation button foot 95 provided on the operation button 91 so as to project in the pressing direction of the operation button 91 and contact the switch 94, and a plastic having an operation button guide 92a. And a case 92.

[0003]

However, conventionally, in the operation button attaching device 90, when a display screen such as a liquid crystal display (not shown) is attached to the plastic case 92 having the operation button guide 92a, the liquid crystal display On the printed circuit board 93 located on the back side, a pilot lamp or the like (not shown) may be attached as a backlight of a liquid crystal display. The backlight of the liquid crystal display needs to prevent unevenness of brightness in the illumination so that the display screen of the liquid crystal display has uniform brightness. If the distance between the liquid crystal display and the pilot lamp is narrow, the illumination of the display screen will be uneven in brightness and darkness. Therefore, the distance between the liquid crystal display and the pilot lamp must be wide enough to prevent uneven illumination. Since the switch 94 and the pilot lamp are mounted on the same printed circuit board 93, and the operation button 91 and the liquid crystal display are mounted on the same surface of the plastic case 92, depending on the distance between the liquid crystal display and the pilot lamp. The interval between the operation button 91 and the switch 94 is determined.

The operation button 91 sometimes tilts due to the gap between the operation button 91 and the operation button guide 92a when pressed by the operator. As shown in FIG. 5 (a),
When the distance between the operation button 91 and the switch 94 is narrow, the distance at which the end of the operation button foot portion 95 shifts from the center of the switch 94 when the operation button 91 is tilted is small, so the operation button foot portion 95 causes the switch to switch. 94 is surely pressed.
However, as shown in FIG. 5B, when the distance between the operation button 91 and the switch 94 is wide, the operation button foot 95 with respect to the center of the switch 94 when the operation button 91 is tilted.
Since the distance at which the end of the switch shifts is extremely large, a problem may occur in that the switch 94 cannot be reliably pressed by the operation button foot 95. Especially when the operator pushes the end of the operation button 91, the operation button 91
Since the inclination of No. 1 is further increased, the problem remarkably occurs and the operation feeling of the operation button 91 is deteriorated.

The present invention has been made in order to solve such a problem, and even if the operator pushes the end of the operation button 91 when the distance between the operation button 91 and the switch 94 is large, the operation button 91 is pressed. (EN) An operation button attachment device capable of improving the operation feeling by suppressing the tilt of the operation button and surely pressing the switch 94 by the operation button foot portion 95.

[0006]

SUMMARY OF THE INVENTION An operation button mounting device of the present invention includes an operation button that is pressed by an operator, operation button guide means for guiding the pressing of the operation button, and the operation button for the operation button. A switch mounted on a printed circuit board separated by a predetermined distance in the operation button pressing direction, an operation button foot portion projecting in the operation button pressing direction and abutting against the switch, and supporting the operation button foot portion. And a foot supporting means for performing the operation. With this configuration, when the distance between the operation button and the switch is large, even if the end of the operation button is pressed by the operator, the tilt of the operation button is suppressed and the switch is reliably pressed by the operation button foot portion. The ring property can be improved.

Further, the operation button mounting device of the present invention has a light source mounted on the printed circuit board, and a case having the operation button guide means spaced apart from the light source by a predetermined distance and parallel to the printed circuit board. And a liquid crystal display attached thereto. With this configuration, when the distance between the operation button and the switch is large with the light source and the liquid crystal display,
Even if the end of the operation button is pressed by the operator, the inclination of the operation button is suppressed and the switch is reliably pressed by the operation button foot portion, so that the operation feeling can be improved.

Further, the operation button attaching device of the present invention has a structure characterized in that the foot supporting means is provided between the operation button and the switch. With this configuration,
When the distance between the operation button and the switch is large, even if the operator pushes the end of the operation button, the foot supporting means provided between the operation button and the switch suppresses the tilt of the operation button and suppresses the inclination of the operation button. Since the switch is surely pressed by the foot portion, the operation feeling can be improved.

The operation button mounting device of the present invention has a structure characterized in that the foot supporting means is provided in the vicinity of the switch of the operation button foot. With this configuration, when the distance between the operation button and the switch is large, even if the end of the operation button is pressed by the operator, the foot support means provided at the switch-side end of the operation button foot is Since the tilt is suppressed and the switch is reliably pressed by the foot portion of the operation button, the operation feeling can be improved.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

First, the structure of the operation button mounting device of the present invention will be described. 1 to 3 are views showing an embodiment of an operation button attaching device of the present invention. The operation button attachment device according to an embodiment of the present invention is provided in an on-vehicle electronic device (car navigation device, car audio, liquid crystal television, etc.). As shown in FIGS. 1 and 2, the vehicle-mounted electronic device 10
Is formed by a front cover 11 covering the front side of the vehicle-mounted electronic device 10, a rear cover 13 screwed to the front cover 11 with a screw 12, and the front cover 11 and the rear cover 13 being screwed. A liquid crystal display 14 that is housed in the housing and displays image information, operation buttons 15 that are operated by an operator, and
The liquid crystal display 14 is provided with a printed circuit board 18 on which electronic components such as a pilot lamp 16 as a light source for a backlight of the liquid crystal display 14 and a switch 17 are mounted, and a plastic case 19 as a case.

The front cover 11 is a vehicle-mounted electronic device 1
A plate member 11a that covers the front surface of 0, and peripheral walls 11b, 11c, 11d, and 11e that extend vertically from the peripheral edge of the plate member 11a,
The plate member 11a is provided with a screwing portion 20 which is provided so as to project from the peripheral walls 11b and 11d vertically extending from both ends in the longitudinal direction and which has a through hole 20a for screwing.
The plate member 11a has a plurality of rectangular through holes 21 for inserting the operation buttons 15 and a rectangular through hole 22 for visually recognizing the liquid crystal display.

The rear cover 13 includes a plate member 13a for covering the rear surface of the vehicle-mounted electronic device 10, peripheral walls 13b, 13c, 13d, 13e vertically extending from the peripheral end of the plate member 13a, and both end portions in the longitudinal direction of the plate member 13a. The peripheral wall 13 hung from the
Holes 2 for projecting outside of b and 13d for screwing
3a and the screwing part 23 and the plastic case 1
9 is provided with screwing portions 24 for screwing and fixing the plate member 13a at both ends in the longitudinal direction of the plate member 13a.

The plastic case 19 has a plurality of rectangular through holes 25 for inserting the operation buttons 15 and a rectangular through hole 26 for irradiating the liquid crystal display 14 with light from the pilot lamp 16. Plate member 19a
An operation button guide means 27 provided on the inner surface of the plate member 19a around the through hole 25, peripheral walls 19b, 19c, 19d and 19e vertically provided on the peripheral end of the plate member 19a, and the peripheral walls 19b to 19b. A screw having a through hole 28a that is provided perpendicularly to the peripheral walls 19b to 19e so as to spread from the end portion of 19e to the outside of the peripheral wall and has the through hole 28a for screwing and fixing the plastic case 19 to the screw fixing portion 24 of the rear cover 13. The stop plate 28, the claw 29 for fitting and mounting the printed circuit board 18 near the inner ends of the peripheral walls 19b and 19d which are vertically provided from both ends of the plate member 19a, the plate member 19a and the switch 17 The foot support means 30 is provided in parallel with the plate member 19a and has a plurality of circular through holes 30a. The through hole 30a provided in the foot supporting means 30 may have a rectangular shape or another shape.

As shown in FIG. 3, the operation button 15 has a head 15b of the operation button 15 having an outer periphery of the same size as the outer periphery of the surface 15a and a through hole 25 into which the head 15b is inserted. Body 15c of operation button 15 with a large outer circumference
And an operation button foot portion 15d provided on the operation button 15 so as to project in the pressing direction of the operation button 15. The body portion 15c of the operation button 15 is supported by the operation button guide means 27 provided on the inner surface of the plate member 19a of the plastic case 19 so as to surround the outer periphery of the body portion 15c. The operation button foot portion 15d is composed of an elongated rod member having a length from the operation button 15 to the switch 17 and a circular cross section, and is inserted into the through hole 30a of the foot portion support means 30 to be inserted into the foot portion support means 30.
Is supported on the tip end side of the operation button foot portion 15d.
The tip of the operation button foot portion 15d is in contact with the switch 17.

A plurality of pilot lamps 16 are arranged at equal positions at predetermined positions on a printed circuit board 18 which is mounted in parallel with the liquid crystal display 14 at a predetermined distance on the back side of the liquid crystal display 14.

The switch 17 is a push-button type that is turned on (off) only when it is pressed, or is switched on and off by being pressed, and is a print located in the pressing direction of the operation button 15. It is arranged at a predetermined position on the substrate 18.

The sectional shape of the operation button leg 15d may be rectangular or any other shape as long as the operation button leg 15d is a bar member having a length from the operation button 15 to the switch 17.

Next, the operation will be described. In the operation button attaching device of the present embodiment, a plastic case 19 is housed inside a housing formed by screwing the front cover 11 and the rear cover 13, and a plate member 19a of the plastic case 19 and a switch 17 are provided. Plate member 19 between
Since the foot supporting means 30 having a plurality of through holes 30a for guiding the operation button foot 15d so as to be parallel to a is provided, it is provided so as to project from the operation button 15 in the pressing direction of the operation button 15. The operation button foot 15d and the foot support means 30
With this, the operation button foot portion 15d can be supported on the tip end side. In this case, the foot supporting means 30 can simultaneously mold the plastic case 19 at the time of molding.

As shown in FIG. 3, the operation button 15 has an operation button guide means 27 for supporting the body portion 15c of the operation button 15 and an operation button foot portion even when the distance between the operation button 15 and the switch 17 is large. Foot support means 30 for supporting the tip end side of 15d
Since it is supported at two locations by and, when the operator presses the operation button 15 in the direction of arrow A, the operation button 15
It is possible to suppress the tilt of the operation button 15 caused by the gap between the operation button guide means 27 and the operation button guide means 27. Operation button 15
When the tilt of the button is suppressed, the distance by which the end of the operation button foot portion 15d is displaced from the center of the switch 17 becomes small,
Since the switch 17 is surely pressed by the operation button foot portion 15d, it is possible to solve the problem that the switch 17 is not pressed when the operator presses the end portion of the operation button 15 and to improve the operation feeling. .

[0021]

As described above, according to the present invention, the operation button pressed by the operator, the operation button guiding means for guiding the pressing of the operation button, and the predetermined interval in the pressing direction of the operation button. A switch mounted on the printed circuit board, an operation button foot portion provided on the operation button so as to project in the pressing direction of the operation button and come into contact with the switch, and foot support means for supporting the operation button foot portion. Therefore, when the distance between the operation button and the switch is large, even if the end of the operation button is pressed by the operator, the inclination of the operation button is suppressed and the foot of the operation button presses the switch securely, so the operator operates It is possible to provide an operation button attachment device having an excellent effect that the problem that the switch is not pressed when the end portion of the button is pressed can be solved and the operation feeling can be improved.

[Brief description of drawings]

FIG. 1 is a side sectional view of an operation button mounting device according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a device including the operation button attaching device shown in FIG.

FIG. 3 is an enlarged side sectional view of the vicinity of the operation button of the operation button attaching device shown in FIG.

FIG. 4 is a side sectional view of a conventional operation button mounting device.

FIG. 5 is a side sectional view of a conventional operation button mounting device in which the operation button is tilted.

[Explanation of symbols]

15 operation buttons 27 Operation button guide 18 Printed circuit board 17 switch 15d operation button foot 30 foot support means 16 Pilot lamp (light source) 19 plastic case (case) 14 LCD display

Claims (4)

[Claims] 1. An operation button to be pressed by an operator, operation button guide means for guiding the pressing of the operation button, and a printed circuit board separated from the operation button by a predetermined distance in the pressing direction of the operation button. A switch attached to the switch, an operation button foot portion projecting in the pressing direction of the operation button and abutting the switch, and foot supporting means for supporting the operation button foot portion. Button mounting device. 2. A light source mounted on the printed circuit board, and a liquid crystal display mounted on a case having the operation button guide means spaced apart from the light source by a predetermined distance and parallel to the printed circuit board. The operation button attachment device according to claim 1, wherein the operation button attachment device is provided. 3. The operation button attachment device according to claim 1, wherein the foot support means is provided between the operation button and the switch. 4. The foot supporting means is provided in proximity to the switch of the operation button foot.
The operation button attachment device described.