JP2019113322A - Vehicle meter - Google Patents

Abstract

To provide a vehicle meter capable of suppressing a vibration of a meter.SOLUTION: A vehicle meter includes: an opening arranged on a front side of the meter; a facing 16 equipped with a peripheral edge 42 of the opening and attachment stays 43 having a space 45 with respect to the peripheral edge 42, projecting to the front side of the meter, and for attaching the meter to an attached portion; and a cover 17 for covering the opening by being attached to the peripheral edge 42. The cover 17 has a protrusion 63 projecting in a direction of the attachment stays 43 in the space 45. The protrusion 63 is brought into contact with the attachment stays 43 without deforming the attachment stays 43.SELECTED DRAWING: Figure 5

Description

  The present invention relates to a meter for a vehicle mounted on a vehicle such as a car.

  A vehicle such as a car is equipped with an instrument such as a speedometer or an engine speed indicator that displays information necessary for driving. The meter has a case for housing a circuit board or the like. A cover is provided on the front side of the case. The look back conceals unnecessary parts of the meter and has an opening that divides the display area of the meter. A cover is attached to the front cover to prevent dust and the like from entering the instrument. The facing and the cover are fixed to each other by fitting.

Japanese Patent Application Laid-Open No. 9-58300 JP, 2010-20876, A

  When the meter is mounted on a vehicle, the vibration of the vehicle also causes the meter to vibrate. When the hardness of the material of the cover and the cover is different, if the members rub against each other by vibration, the softer member (for example, the cover) may be scraped and scraps may be generated. Scrapings can penetrate the inside of the instrument and cause the appearance of the instrument to be damaged or cause damage.

  The present invention has been made in consideration of such circumstances, and it is an object of the present invention to provide a vehicular instrument capable of suppressing vibration of the instrument.

  In order to solve the problems described above, the vehicle instrument according to the present invention has an opening provided on the front side of the instrument, a peripheral portion of the opening, and a gap to the peripheral portion to provide a front surface of the instrument. The cover further includes an attaching stay having a mounting stay projecting to the side and attaching the measuring instrument to the attached portion, and a cover which covers the opening by being attached to the peripheral edge, and the cover is in the gap. It has a projection that protrudes in the mounting stay direction.

  In the vehicle instrument according to the present invention, the vibration of the instrument can be suppressed.

The block diagram which looked at the meter which is an embodiment of the meter for vehicles concerning the present invention from the front side. The block diagram which looked at the meter from the side side. (A) is a perspective view of a turn over, (B) is an enlarged view of a region B of FIG. 3 (A). (A) is a perspective view of a cover, (B) is an enlarged view of field B of Drawing 4 (A). Sectional drawing which follows the VV line of FIG.

  An embodiment of a vehicle instrument according to the present invention will be described based on the attached drawings. The instrument for vehicles which concerns on this invention is mounted in vehicles, such as a motor vehicle and a two-wheeled vehicle, a ship, an agricultural machine, a construction machine, for example. In this embodiment, the instrument for vehicles which concerns on this invention is demonstrated using the example which is the instrument 1 mounted in the instrument panel of the motor vehicle.

FIG. 1 is a block diagram of an instrument 1 as an embodiment of a vehicle instrument according to the present invention, viewed from the front side.
FIG. 2: is the block diagram which looked at the meter 1 from the side side.

  3A is a perspective view of the facing 16 and FIG. 3B is an enlarged view of the region B of FIG. 3A.

  FIG. 4A is a perspective view of the cover 17 and FIG. 4B is an enlarged view of the region B of FIG. 4A.

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

  In the following description, the “front side” means the side shown in FIG. 1 and the left side in FIG. 2 and means the side viewed by a viewer (driver). “Back side” means the right side in FIG. 2 and means the opposite side to the front side. “Upper” and “lower” mean, for example, the upper and lower sides in FIGS. 1 and 2.

  The instrument 1 is mounted in an instrument panel of a vehicle. The meter 1 has a speedometer 2 and a display screen 3. The speedometer 2 is a pointer-type (mechanical) meter that displays the speed of the vehicle. The display screen 3 is a liquid crystal display screen that displays a travel distance, a remaining amount of gasoline, and the like.

  The meter 1 mainly includes a pointer 11, a display panel 12, a dial 13, a circuit board (not shown), a case 15, a cover 16, and a cover 17.

  The pointer 11 points to a scale formed on the dial 13 by rotating on a surface parallel to the surface of the dial 13. The pointer 11 is connected to a pointer driving unit provided on the circuit board via a pointer shaft. The pointer drive unit rotates the pointer shaft in accordance with the input speed of the vehicle.

  The display panel 12 is a segment-type liquid crystal display panel. The display panel 12 has a pair of surface glass substrates for sealing a liquid crystal layer. Transparent electrodes are formed on the pair of glass substrates by ITO (Indium Tin Oxide) or the like. The display panel 12 also has a pair of surface polarizing plates (polarizing filters) arranged so as to sandwich the pair of surface glass substrates. The display panel 12 is connected to a circuit board via a flexible substrate such as a flexible printed circuit (FPC). As the display panel 12 is controlled by the control unit of the circuit board, a driving voltage is applied to the liquid crystal layer through the transparent electrode. Thereby, the alignment of liquid crystal molecules in the liquid crystal layer is controlled, and the individual pixels of the display panel 12 are switched to the transmissive state or the non-transmissive state. The display panel 12 displays predetermined information on the display screen 3 by such a combination of pixels.

  Further, a backlight unit is provided on the back side of the display panel 12. The backlight unit includes a light source such as an LED (Light Emitting Diode) and a light guide, and illuminates the display panel 12 from the back side.

  The dial 13 is provided on the back side of the pointer 11. The dial 13 has a base and a design layer. The base material is, for example, a plate-like member of polycarbonate resin having transparency (translucency). The design layer is a printing layer printed with a black light-shielding ink formed on the front side or the back side of the substrate. The design layer has a design 21 such as a scale, numbers, letters, symbols, etc. formed in the shape of blank characters. The design 21 is lit and displayed by transmitting the light of the light source emitted from the back side of the dial 13. Further, on the dial 13, a decoration ring 25 is disposed along the outer edge of the speedometer 2.

  The circuit board mainly includes the display panel 12, a light source for the design 21, a driver and control unit such as a pointer drive unit, a light source, and a pointer drive unit.

  The control unit includes a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), and the like, and executes, for example, predetermined arithmetic processing in accordance with a program written in the ROM. The control unit acquires, for example, the vehicle speed, various vehicle information, and the like from an ECU (Electronic Control Unit) of the vehicle via various sensors and the like. The control unit drives and controls the display panel 12, the light source for the design 21, and the pointer driving unit based on the acquired information. The light source for the design 21 is an LED (Light Emitting Diode), and illuminates the dial 13 from the back side.

  The case 15 has a middle case (not shown) and a lower case 31. The middle case is made of light-shielding synthetic resin (for example, polypropylene) such as white, and fixes and supports the display panel 12, the dial 13 and the circuit board. The middle case encloses a light source for the design 21 and has a light shielding wall for guiding light. The light shielding wall forms a cylindrical space by walls dividing the illumination (light emission) region of the light source, and the light passes through the cylindrical space. One end (the surface on the circuit board side of the middle case) of the light shielding wall is in contact with the circuit board, and the other end (the surface on the dial side of the middle case) is in contact with the back surface of the dial 13.

  The lower case 31 is made of light shielding synthetic resin such as black (for example, polypropylene). The lower case 31 and the cover 16 form an internal space by fitting, and the pointer 11, the display panel 12, the dial 13 and the circuit board are accommodated in the internal space.

  The dial 16 is made of a light shielding synthetic resin such as black (eg, polypropylene). The facing 16 functions as a front side case and has a wedge shape on the upper side. As shown in FIG. 3, the facing 16 has an opening 41, a peripheral portion 42, and a mounting stay 43.

  The opening 41 is provided on the front side of the meter 1. The peripheral portion 42 is a peripheral portion of the opening 41 and is a place where the cover 17 is fitted. The peripheral portion 42 has a hole 44 into which the hook 51 of the cover 17 is inserted. The mounting stay 43 is provided for mounting the meter 1 on the instrument panel of a vehicle as a mounting portion. The mounting stay 43 is a plate-like member integrally formed with the facing 16. The mounting stay 43 is provided with a gap 45 (FIG. 5) with respect to the peripheral portion 42 of the facing 16 and protrudes from the facing main body 46 to the front side of the instrument 1. The mounting stays 43 are provided at two symmetrical positions on the upper side of the dial 16. The mounting stay 43 has a screw hole 43a at its front end for screwing the instrument 1 to the instrument panel. The mounting stay 43 has a rib 43 b for suppressing the deflection (reinforcement) of the mounting stay 43. The ribs 43 b are provided at three positions on the root 43 c side of the fitting stay 43 with respect to the cover 16 and protrude in the direction of the gap 45.

  The cover 17 is, for example, a translucent polycarbonate resin or inorganic glass. In the present embodiment, the cover 17 is made of a material harder than the facing 16. The cover 17 covers the opening 41 so as to prevent dust and the like from entering the speedometer 2 and the display screen 3. As shown in FIG. 4, the cover 17 has a base surface 61, a fitting portion 62, and a hook 51. The base surface 61 is a surface covering substantially the front surface of the instrument 1. The fitting portion 62 is a surface that rises substantially at a right angle from the base surface 61, and fits with the peripheral edge portion 42 of the facing 16. The hook 51 protrudes from the fitting portion 62 in the fitting direction with the facing 16. The hook 51 is inserted into the hole 44 of the dial 16 and hooked on the hole 44, thereby firmly fixing the cover 17 to the dial 16.

  The cover 17 also has a projection 63 as shown in FIGS. 4 and 5. The projection 63 is the outer surface 62 a of the fitting portion 62 where the hook 51 is not provided, and corresponds to the gap 45 between the peripheral portion 42 of the dial 16 and the mounting stay 43 when fitted into the dial 16. It is provided in the position. The protrusion 63 is provided at a position close to the root 43 c of the mounting stay 43. The protrusion 63 has a triangular shape, has a curved top portion 63 a, and protrudes in the gap 45 in the direction of the mounting stay 43. The projection 63 contacts the mounting stay inner surface 43 d at the top portion 63 a without deforming the mounting stay 43. That is, although the projection 63 is in contact with the mounting stay 43, the mounting stay 43 is not pushed upward due to this contact and is not bent. In addition, the projection 63 is provided at a position not in contact with the rib 43 b of the facing 16 so as to avoid the rib 43 b.

  Here, when the instrument 1 is mounted on the instrument panel of the vehicle, the instrument 1 is fixed to the vehicle by a screw via the mounting stay 43. The vehicle vibrates vertically and horizontally when traveling. The vibration of the vehicle is also transmitted to the meter 1 through the instrument panel. Specifically, the vibration is transmitted to the meter 1 through the mounting stay 43.

  The mounting stay 43 is integrally formed with the facing 16. For this reason, there is a possibility that the cover 16 and the other members of the instrument 1 may rub against each other while deforming (during deflection) between the fixed mounting stay 43 and the cover body 46. Specifically, the end face 62b of the fitting portion 62 and the butting portion 42a of the peripheral portion 42 rub against the cover 16 and the cover 17 attached to the cover 16 (FIG. 1). As a result, the facing 16 is scraped by the cover 17 which is a member harder than the facing 16, and scraps are generated. Debris enters the meter 1 from between the cover 16 and the cover 17 and adheres to the speedometer 2 and the display screen 3, which may damage the appearance or damage the meter 1.

  On the other hand, the measuring instrument 1 in this embodiment provided the projection 63 in the cover 17. With the vibration, the protrusion 63 and the mounting stay inner surface 43d come in contact with each other. Thereby, the amplitude can be made smaller than the amplitude of the vibration between the fitting portion 62 and the mounting stay inner surface 43d which occurs when the projection 63 is not present. Along with this, the amount of deflection between the mounting stay 43 and the turning main body 46 can also be reduced. Therefore, it can reduce that the end face 62b of the fitting part 62 mentioned above and the abutting part 42a of the peripheral part 42 rub, and generation | occurrence | production of scraps can be prevented.

  While certain embodiments of the present invention have been described, these embodiments have been presented by way of example only, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and the gist of the invention, and are included in the invention described in the claims and the equivalent scope thereof.

For example, although the attachment stay 43 demonstrated the example provided in the upper side of the facing 16, it may be provided in the lower side or the left-right side. The mounting stay 43 may be separate from the cover 16.
Although the protrusion 63 demonstrated the example in which the top part 63a was formed in curvilinear form, the top part 63a may be linear or point shape. Further, the protrusions 63 are not limited to the triangular shape, and may be rectangular or cylindrical. In this case, the top may be planar. Furthermore, the protrusion 63 may be noncontact with the mounting stay inner surface 43d.

DESCRIPTION OF SYMBOLS 1 meter 2 speedometer 3 display screen 11 pointer 12 display panel 13 dial 15 case 16 lookback 17 cover 21 design 25 decoration ring 31 lower case 41 opening 42 peripheral part 42a abutting part 43 mounting stay 43a screw hole 43b rib 43c root 43d Mounting stay inner surface 44 hole 45 gap 46 look-back main body 51 hook 61 base surface 62 fitting portion 62 a outer surface 62 b end surface 63 protrusion 63 a top

Claims (4)

An opening provided on the front side of the instrument, a peripheral edge portion of the opening, and a mounting stay for projecting the front side of the instrument with a gap to the peripheral portion and attaching the instrument to a mounting portion; Having a look back,
A cover that covers the opening by being attached to the peripheral portion;
The vehicle instrument according to claim 1, wherein the cover has a protrusion protruding in the mounting stay direction in the gap.   The instrument for a vehicle according to claim 1, wherein the projection contacts the mounting stay without deforming the mounting stay.   The instrument for a vehicle according to claim 1, wherein a top portion of the protrusion is formed in a curved shape. The mounting stay has a rib protruding in the gap direction,
The instrument for a vehicle according to any one of claims 1 to 3, wherein the projection is provided at a position not in contact with the rib.

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