JP5614712B2 - Switch device - Google Patents

Description

  The present invention relates to a switch device including an operation member that is incorporated in, for example, a vehicle meter and illuminated by light from a light source.

  Conventionally, as described in Patent Document 1, a switch device is used for adjusting brightness in a vehicle meter. This switch device includes a switch having a movable portion, an operation member that operates the movable portion at an end portion on the switch side, and has a display portion on an end portion opposite to the switch side, and a light source. The operation member is made of a transparent material capable of guiding light from the light source to the display unit, and is covered with a light-shielding paint. The display part is formed by partially removing the light-shielding paint by laser processing or the like.

  The operation member configured as described above is disposed so as to protrude forward from a through hole formed in a cover member made of a windshield (front cover) so that the driver can operate the operation member.

JP 2009-266399 A

  However, such a switch device has a structure in which the operation member is passed through the through hole formed in the windshield, so that the display unit does not rub due to contact with the windshield during assembly. There is a problem that the assembly work efficiency becomes worse because it is necessary to assemble.

  Therefore, an object of the present invention is to provide a switch device that can improve the assembly workability in a switch device including an operation member that is illuminated by light from a light source.

Therefore, in order to achieve the above object, the present invention provides a switch having a movable portion, and an end portion disposed on the front side of the switch to actuate the movable portion by pressing or rotating operation and on the side opposite to the switch side. An operation member having a display unit and a light source positioned outward from the longitudinal central axis of the operation member, wherein the operation member is made of a material capable of guiding light from the light source to the display unit , In the switch device that penetrates a through hole formed in a cover member that covers the switch and the light source, the operation member extends outward from a central axis in a longitudinal direction of the operation member and receives a light of the light source and the first knob having a pressing portion for pressing the switch, the first knob being operably connected to Ri Do and a second knob having the display portion, the first knob The first knob is located on the switch side of the covering member and has a light shielding portion having an outer diameter larger than the inner diameter of the through hole, and the second knob is exposed from the through hole of the covering member. It is characterized by being connected to the knob .

With this configuration, since the first knob can be connected to the second knob after the cover member is assembled, contact between the cover member and the display portion formed on the second knob is prevented. The assembly workability can be improved , and light leakage from the through hole can be prevented.

  Moreover, this invention has a connection member which consists of an elastic member which surrounds the connection part of a said 1st knob and a said 2nd knob, and this connection member opposes the internal peripheral surface of the said through-hole of the said cover member. It is characterized by doing.

  With such a configuration, not only can the first knob and the second knob be stably connected by the connecting member, but also the abnormal noise caused by the contact between the operation member and the through-hole by using the connecting member as an elastic member. Can be prevented.

  ADVANTAGE OF THE INVENTION According to this invention, a switch apparatus with favorable assembly property can be provided.

The front view of the instrument apparatus which shows 1st Embodiment in this invention. AA sectional drawing of an instrument apparatus same as the above. Sectional drawing of the switch apparatus which shows 1st Embodiment in this invention. Sectional drawing of the switch apparatus which shows 2nd Embodiment in this invention.

  A vehicle instrument device to which a switch device according to a first embodiment of the present invention is applied will be described.

  The instrument device includes a rigid circuit board 3, an instrument body 5 that is mounted on the back side of the circuit board 3 in a conductive state with the circuit board 3 and has a pivot shaft 4 that extends forward through the circuit board 3, A pointer 6 fixed to the distal end side of the rotating shaft 4, a display plate 7 disposed behind the pointer 6 and provided with a display unit (not shown) corresponding to the operation of the pointer 6, and the display plate 7 A holding member 8 made of a white synthetic resin, which is arranged between the circuit board 3 and holding the display board 7, and a light emitting diode mounted on the circuit board 3 as a light source for illuminating the pointer 6 and the display board 7 from behind. 9, a cover 10 that covers the back side of the circuit board 3, a decorative portion 12 that is disposed on the front side of the display board 7 and has an opening 11 that defines a visible region of the display board 7, a pointer 6, a display board 7, and the like A colorless and transparent front cover 13 is provided to cover the front side.

Further, the display plate 7, the decorative portion 12, and the front cover 13 are provided with through-holes 7a, 12a, and 13a through which a first knob, which will be described later, can pass and can be sequentially assembled.

  The instrument device also includes a display unit that displays vehicle travel information, and a switch device that includes, for example, an illumination control that adjusts the luminance of the display unit.

  The switch device is made of, for example, a rubber elastic body such as silicone rubber, and includes a switch 17 having a movable portion 20 soldered to the circuit board 3, a hard circuit board 3 on which the switch 17 is disposed, and the switch 17. An operation member 18 made of synthetic resin to be pressed and a switch light source 19 for illuminating a display portion (not shown) provided at the end of the operation member 18 opposite to the switch side are provided. . The circuit board 3 is a board on which the instrument body 5 of the speedometer 1 and the tachometer 2 is mounted. Further, the switch device according to the present embodiment has a structure in which the operation member 18 passes through a through hole 14a provided in the dashboard 14 of the vehicle.

  The operating member 18 includes a first knob 30 having a pressing portion 31 that presses the switch 17, a second knob 40 that is operably connected to the first knob 30 and has a display portion, a first knob, and a first knob. It comprises a connecting member 50 for connecting the connecting portions with the two knobs, a flange 34 integrally formed with the first knob 30, and a packing 35 attached to the flange 34.

  The first knob 30 is formed from a light-transmitting synthetic resin, contacts the movable portion 20 of the switch 17, and has a disk-like pressing portion 31 that presses the movable portion 20, and L from the periphery of the pressing portion 31. A light receiving portion 32 that extends toward the circuit board 3 and receives light from the light source and a light guide portion 33 that guides light incident from the light receiving portion 32 to the second knob 40 are provided on the tip side. doing. Note that the switch device may be operable by rotating the movable unit 20.

Further, the flange 34, the optical switch for the light source 19 is to prevent the leaking out of the through hole 13a, the packing 35 made of resin or rubber is attached. The packing 35 has an outer diameter larger than the inner diameter of the through hole 14 a provided in the dashboard 14.

  The second knob 40 is obtained by applying, for example, white and black coating to a translucent synthetic resin, and a display portion is formed by laser processing at a tip portion thereof.

The connecting member 50 is made of an elastic member such as an elastomer, and has a light shielding property. The connecting member 50 surrounds the connecting portion between the first knob 30 and the second knob 40 and has a structure facing the inner peripheral surface of the through hole 14a of the dashboard 14.

A method for assembling the switch device will be described. The switch 17 and the switch light source 19 are assembled to the circuit board 3 by a process such as soldering. After press-fitting so that the movable part 20 of the switch 17 and the pressing part 31 of the first knob 30 are in contact with each other, the light guide part 33 is provided on the display plate 7, the decoration part 12, and the front cover 13, respectively. The through holes 7a, 12a and 13a are passed through in order. At this time, the flange 34 of the first knob 30 is disposed so as to be located outside the front cover 13. When the dashboard 14 is put on the vehicle instrument device equipped with the switch device, the first knob 30 is passed through the through hole 14a, and finally the second knob 40 in which the connecting member 50 is press-fitted in advance. Wear.

  As described above, the present invention provides the switch 17 having the movable portion 20 and the movable portion 20 which is disposed on the front side of the switch 17 and is operated by pressing or rotating, and is displayed on the end opposite to the switch 17 side. A cover member that includes at least the switch 17 and the switch light source 19. The cover member includes a switch light source 19. The cover member is made of a material that can guide the light from the switch light source 19 to the display unit. In the switch device penetrating through the through hole 14a formed in the first member 30, the operation member 18 includes a first knob 30 having a light receiving portion 32 for receiving light from the switch light source 19 and a pressing portion 31 for pressing the switch 17, The first knob 30 is operably connected to the second knob 40 having a display portion, and the first knob 30 is attached after the dashboard 14 is assembled. Since it can connect with the 2nd knob 40, a contact with the display part formed in the dashboard 14 and the 2nd knob 40 is prevented, and assembly | attachment workability | operativity can be made favorable.

The present invention also has a connecting member 50 made of an elastic member surrounding the connecting portion between the first knob 30 and the second knob 40, and the connecting member 50 is an inner peripheral surface of the through hole 14 a of the dashboard 14. , The first knob 30 and the second knob 40 can be stably connected by the connecting member 50, and the connecting member 50 can be an elastic member so that the operation member 50 and the through hole 14 a can be connected to each other. Generation of abnormal noise due to contact can be prevented.

The present invention, packing 35, by having a flange 3 4 having a larger outer diameter than the inner diameter of the through hole 14a to the switch 17 side of the dashboard 14, it is possible to prevent light leakage from the through-hole 14a .

  Next, a vehicle instrument device to which a switch device according to a second embodiment of the present invention is applied will be described. Note that the second embodiment is different from the first embodiment only in the shapes of the second knob 40 and the connecting member 50, and therefore the entire description is omitted.

  The 2nd knob 40 in 2nd Embodiment makes the front-end | tip part and side part of a knob the same member. As shown in FIG. 4, the diameter of the second knob 40 is larger than that of the first embodiment because it needs a hollowed shape for preventing sink marks on the inner side.

The connecting member 50 is press-fitted into a recess between the flange 34 and the enlarged diameter.

By forming in this way, the diameter of the second knob is increased, which makes it easier for the driver to operate.

  In the present embodiment, the example in which the second knob 40 penetrates from the dashboard 14 has been described. However, for example, a structure exposed from the front panel may be used.

DESCRIPTION OF SYMBOLS 3 Circuit board 4 Rotating shaft 5 Instrument main body 6 Pointer 7 Display board 7a Through-hole 8 Holding member 9 Light emitting diode 10 Cover 11 Opening part 12 Decoration part 12a Through-hole 13 Front cover 13a Through-hole 14 Dashboard 14a Through-hole 18 Operation member 19 switch light source 20 movable part 30 first knob 31 pressing part 32 light receiving part 33 light guiding part 34 flange (light shielding part)
35 Packing 40 Second knob 50 Connecting member

Claims (2)

A switch having a movable part, an operation member disposed on the front side of the switch, operating the movable part by a pressing or turning operation, and having a display part at an end opposite to the switch side ; A light source located outside the central axis in the longitudinal direction, and the operation member is made of a material capable of guiding the light of the light source to the display unit , and is formed on a cover member that covers at least the switch and the light source In the switch device penetrating through the through hole, the operation member extends outward from a longitudinal central axis of the operation member, and includes a light receiving portion that receives light from the light source and a pressing portion that presses the switch. 1 of the knob, the first knob being operably connected to Ri Do and a second knob having the display portion, the first knob, located on the switch side of the covering member And a light-shielding portion having an outer diameter larger than the inner diameter of the through-hole, wherein the second knob is connected to the first knob exposed from the through-hole of the covering member. apparatus.   It has a connection member which consists of an elastic member which encloses the connection part of the 1st knob and the 2nd knob, and this connection member opposes the inner skin of the penetration hole of the covering member, The switch device according to claim 1.

Images