JPH10281822A - Display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a display device, for a vehicle, which effectively utilizes the linearity of a discharge tube and in which at least the discharge tube can be taken out from the inside of a casing along its long direction as required. SOLUTION: A grip body 19 is gripped inside an opening part 61a at a casing 60, and a claw part 19d at a locking arm 19c is dissociated toward the lower part from a coupling hole part 73 in a wiring board 70. Then, the grip body 19 is pulled out along the long direction of a cold cathode tube 10b from the opening part 61a. Then, a reflector 10d is separated from both connectors 71, 72, and the cold cathode tube 10b can be taken out from the casing 60 integrally with the reflector 10d.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument and other various display devices mounted on a vehicle.

[0002]

2. Description of the Related Art Conventionally, for example, in a vehicle instrument,
A linear discharge tube such as a cold cathode tube is used as a light source for irradiating the scale plate.

[0003]

By the way, the above-mentioned discharge tube is mainly formed of a glass material. On the other hand, components of the display device other than the discharge tube are generally made of a resin material such as polypropylene. Is formed. For this reason, considering the recyclability of the instrument, it is desirable that the discharge tube can be separated from the instrument alone or together with its supporting member.

[0004] This is also desirable when replacing the discharge tube with a new discharge lamp when the discharge tube becomes unlit due to deterioration or the like. In view of the above, the present invention effectively utilizes the linearity of the discharge tube, so that at least the discharge tube can be taken out from the inside of the casing along the longitudinal direction as necessary. It is an object of the present invention to provide a display device.

[0005]

According to the first and fourth aspects of the present invention, a light source is a linear discharge tube integrally mounted on a reflector in a longitudinal direction thereof. The reflector is supported in the casing so as to be movable in the longitudinal direction, and an outer wall side opening is formed in a portion of the outer wall of the casing corresponding to the movable direction of the reflector.

Accordingly, when the display device is discarded, the discharge tube is taken out of the casing through the outer wall opening integrally with the reflector along the longitudinal direction by effectively utilizing the linearity of the discharge tube. it can. Therefore, the discharge tube can be easily separated from the casing and its attached components. As a result, it is possible to dispose of the display device having good recyclability in consideration of the fact that the discharge tube is mainly made of a glass material and that the casing and its attached components are mainly made of a resin material.

Further, even when the discharge tube becomes unlit, it can be easily replaced with a new discharge tube and a reflector integrated therewith. According to the second and fourth aspects of the present invention, the light source is a linear discharge tube assembled to the reflector in the longitudinal direction thereof, and the reflector is assembled to the wiring board. It is supported in the casing so as to be movable in the direction. Further, an outer wall side opening is formed in a portion of the outer wall of the casing corresponding to the movable direction of the wiring board.

Thus, the discharge tube, the reflector and the wiring board can be taken out of the casing through the outer wall opening along the longitudinal direction of the discharge tube and the reflector. As a result, substantially the same functions and effects as the first aspect of the invention can be achieved. According to the third and fourth aspects of the present invention, the light source is a linear discharge tube assembled along the reflector so as to be movable in the longitudinal direction thereof,
A reflector is supported in the casing. Also,
An outer wall side opening is formed in a portion of the outer wall of the casing corresponding to the direction in which the discharge tube can move.

Thus, the discharge tube can be taken out of the casing through the outer wall opening along the longitudinal direction. As a result, the function and effect of the invention described in claim 1 can be further promoted. According to the invention described in claim 4, the outer wall side opening of the casing is closed by the lid so as to be openable and closable.

[0010] Thus, it is possible to ensure good appearance of the casing and to prevent foreign matter such as dust from entering the casing. When the discharge tube or the like is taken out of the casing, an opening on the outer wall side may be opened by a cover plate.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 and 2 show an example of a vehicle display device according to the present invention. This display device includes a scale plate unit 10 disposed in a vehicle cabin of a vehicle. The scale plate unit 10 includes a flat scale plate 10a, a linear cold-cathode tube 10b, a light guide plate 10c, and an L-shaped cross section. It is configured by a reflector 10d (also used as a holder).

The scale plate 10a is an instrument panel disposed in the cabin of the vehicle.
On the black display surface a, an engine speed scale section 11, a vehicle speed scale section 12, an engine water temperature scale section 13, and a fuel amount scale section 14 are formed by punching. In addition,
The black display surface of the scale plate 10 a is covered by a front panel 30 via an annular return plate 20.

The cold cathode tube 10b is, as shown in FIG.
At the upper edge in the width direction of the back surface of the scale plate 10a, the scale plate 1
0a is mounted on a reflector 10d along the longitudinal direction. The total length of the cold-cathode tube 10b includes an engine speed scale 11, a vehicle speed scale 12, and an engine water temperature scale 1.
3 and the fuel amount scale 14 are illuminated.

The cold cathode tube 10b includes a string heater H (see FIG. 3).
b is wound on the outer surface along the longitudinal direction. The light guide plate 10c is formed of a light guide material such as a transparent acrylic resin, and the light guide plate 10c is mounted on the back surface of the scale plate 10a adjacent to the cold cathode tube 10b (see FIG. 2). ). The incident end face 15 of the light guide plate 10c is located parallel to the axial direction of the cold cathode tube 10b and faces the light emitting surface of the cold cathode tube, and the rear surface of the light guide plate 10c has Grains are formed to ensure light diffusion.

Thus, the light guide plate 1 is moved from the cold cathode tube 10b.
0c from the incident end face 15 is reflected by the reflector 1
Under the reflection of 0d, the light is efficiently guided to irradiate the engine speed scale section 11, the vehicle speed scale section 12, the engine water temperature scale section 13, and the fuel amount scale section 14. The reflector 10d has a scale plate 10a and a casing 6 described later on its back wall 18 so as to face the cold cathode tube 10b.
0 (made of a resin such as polypropylene), and is detachably attached to the wiring board 70 as described later.

Further, the display device is provided with respective hands for instructing a rotation speed, a vehicle speed, a water temperature and a fuel amount, and respective driving devices for driving the respective hands. In FIGS. 1 and 2, a pointer 40 for indicating the number of rotations and the pointer 40
Is shown only the driving device 50 for driving. The driving device 50 includes a casing 6 mounted on the back surface of the scale plate 10a.
0, and the rotating shaft 51 of the driving device 50
Extends through each through hole of the light guide plate 10c and the scale plate 10a, and supports the pointer 40. The casing 6
Reference numeral 0 denotes the opening 60a, which is attached to the dial plate 20 via the scale plate 10a.

As shown in FIG. 2, the display device includes a wiring board 70, a connector 80, and a wiring board 90. Note that the insulating substrate portion of the wiring board 70a, the insulating portion of the connector 80, and the insulating substrate portion of the wiring board 90 are formed of insulating resin. The wiring board 70 has two sleeves 17a and 17b of the bottom wall 17 of the reflector 10d (FIG. 3A).
) From below, and this wiring board 70
Is opposed to the cold cathode tube 10b via the bottom wall 17,
A plurality of screws 70b (in FIG. 2, only one screw 70b is illustrated) are fastened to the lower surface of the light guide plate 10c via a plurality of cylindrical members 70a (in FIG. 2, only one cylindrical member 70a is illustrated). Have been.

The connectors 71 and 72 are fixed to the upper surface of the wiring board 70 so as to be located on the left side of the sleeves 17a and 17b in FIG. 3A.
The connector 71 includes a connector main body 71a, a connector terminal 71b, and a connector pin 71c. The connector main body 71a is fixed on the upper surface of the wiring board 70 to form a space 71d. The connector terminal 71b extends from the lower part of the connector body 71a to the space 7
It protrudes in parallel with the wiring board 70 toward the opening in 1d.

The connector pin 71c is fixed through the sleeve 17a of the reflector 10d so as to be coaxial with the connector terminal 71b. The connector pin 71c is connected to the connector terminal 71 through the opening of the space 71d. 71b is separably fitted and connected. As shown in FIG. 3A, an input terminal T2 of the cold-cathode tube 10b is connected to an outer end of the connector pin 71c.
It is connected via a bottom wall 17 of 0d. In addition, empty space 71
As shown in FIG. 3A, the positioning portion 17c of the sleeve 17a of the reflector 10d is removably fitted in the opening d.

On the other hand, the connector 72 is
a, the connector terminal 72b, and the connector pin 72
c. The connector body 72a is fixed on the upper surface of the wiring board 70 to form a space 72d. The connector terminal 72b is connected to the connector body 72.
A protrudes from the lower part of a into the space 72d toward the opening thereof in parallel with the wiring board 70.

The connector pin 72c is penetrated and fixed to the sleeve 17b of the reflector 10d so as to be coaxial with the connector terminal 72b. The connector pin 72c is connected to the connector terminal 72 through the opening of the cavity 72d. 72b is separably fitted and connected. As shown in FIG. 3A, an input terminal T1 of the cold cathode tube 10b is connected to an outer end of the connector pin 72c.
It is connected via a bottom wall 17 of 0d. In addition, empty space 72
As shown in FIG. 3 (a), the opening of the reflector 10d is detachably fitted into the positioning portion 17d of the sleeve 17b of the reflector 10d.

The wiring board 70 has an engaging hole 73.
3 (a) is formed on the right side of the sleeve 17a of the reflector 10d in FIG. 3 (a), and the engagement hole 73 extends downward from the gripping body 19 of the reflector 10d in an L-shape. The claw portion 19d of the stop arm 19c is removably engaged from below. However, the gripping body 19 of the reflector 10d is bifurcated by both gripping portions 19a and 19b,
This gripper 19 is attached to the right side wall 61 of the casing 60 (FIG. 3).
(Refer to (a)) and extends from the reflector 10d toward the opening 61a formed in (2).

As shown in FIG. 3 (a), the grip 19b extends downward in an L-shape from the extension base of the grip 19a. Then, the gripping body 19 has both gripping portions 19a, 19b.
When it is gripped, the grip 19b bends toward the grip 19a against its elasticity. The opening area of the opening 61a of the right side wall 61 is equal to the opening 61a.
The value is such that both fingers 19a and 19b can be gripped by inserting a finger through. The reflector 10d is
It is made of an elastic resin, including the holding body 19.

The wiring board 90 is fastened to the bottom wall of the casing 60 from below by a plurality of screws, and the wiring board 90 faces the wiring board 70 at the left end in FIG. . The connector 80 is fixed between the wiring boards 70 and 90 via the bottom wall of the casing 60. This connector 80 is connected at one end thereof to a connector terminal 71 of both connectors 71 and 72 via a wiring board 70.
The other end of the connector 80 is connected to the wiring portion of the wiring board 90.

In this embodiment configured as described above,
When disposing the display device, the cold cathode tube 10b is removed from the casing 60 integrally with the reflector 10d as follows. First, the opening 61 of the casing 60
a, put both fingers into the grippers 19a, 19b of the gripper 19.
Is gripped, and the grip 19a is held against the elasticity of the grip 19a.
Bend toward b. As a result, the claw 19d of the locking arm 19c is disengaged downward from the engagement hole 73 of the wiring board 70 (see FIG. 3B).

In this state, the holding body 19 is pulled through the opening 61a toward the outside of the side wall 61 of the casing 60 along the longitudinal direction of the cold cathode tube 10b. Then, along with the movement of the reflector 10d in the pulling direction, the connector pin 71c of the connector 71 and the positioning portion 17c of the sleeve 17a of the reflector 10d are connected to the connector terminal 71c.
b and the opening of the connector main body 71a, and the connector pin 72c of the connector 72 and the positioning portion 17d of the sleeve 17b of the reflector 10d separate from the opening of the connector terminal 72b and the connector main body 72a (see FIG. 3B). ). At this time, the connecting portions of the connector terminals 71b and 72b with the wiring board 70 are:
Be cut off.

Thereafter, when the gripping body 19 is further pulled out from the opening 61a, the cold cathode tube 10b is
It is taken out of the casing 60 integrally with Od. As described above, by effectively utilizing the linearity of the cold cathode tube 10b, the cold cathode tube 10b can be easily separated and taken out from the casing 60 and its attached components. As a result, it is possible to dispose of the display device having good recyclability in consideration of the fact that the cold cathode tube 10b is mainly made of a glass material and that the casing 60 and its attached components are mainly made of a resin material.

Also, both connector terminals 71b, 72
If the cold cathode tube 10b is made to be separably connected to each wiring portion of the wiring board 70, if the cold cathode tube 10b becomes unlit due to deterioration or the like, the cold cathode tube 10b is connected to the reflector 10d. At the same time, it is easy to replace with a new cold-cathode tube 10b and a reflector 10d integral with the cold-cathode tube 10b.

This replacement can be easily performed by going through a process reverse to the process of removing the cold cathode tube 10b and the reflector 10d. That is, a new reflector 10d
Is inserted through the opening 61a along the wiring board 70 in a state where the gripping body 19 is gripped. Then, the state shown in FIG.

As a result, the cold cathode tube 10b and the reflector 10d can be exchanged using the casing 60 and its attached components as they are. In this case, the locking arm 19
c is engaged with the engaging hole 73 of the wiring board 70, so that the new reflector 10d
It can be securely held on top. In addition, connector terminal 7
The connection of the connector pin 71c to the connector 1b and the connection of the connector pin 72c to the connector terminal 72b are performed by fitting the reflector 10d into the positioning portion 17d with respect to the opening of the connector body 71a and positioning the reflector 10d with respect to the opening of the connector body 72a. It can be surely performed by fitting into 17c. (Second Embodiment) FIGS. 4 and 5 show a second embodiment of the present invention.

In the second embodiment, a reflector 10e is used instead of the reflector 10d described in the first embodiment.
And a holding member 100 are employed. Reflector 10
e is constituted by the bottom wall 17 and the back wall 18 of the reflector 10d. The bottom wall 17 of the reflector 10e is fixed on the wiring board 70, unlike the reflector 10d of the first embodiment.

The reflector 10d has an inner end in contact with a projection (not shown) projecting from the front end of the wiring board 70 on the near side of the drawing in FIG. The cold cathode tube 10b described in the first embodiment is supported on the bottom wall 17 of the reflector 10e along the longitudinal direction. Further, in the state where the wiring board 70 is mounted on the connector 80, the wiring board 70 is positioned at the front end of the paper surface in FIG. 4 (located on the left end side of the reflector 10e in FIG. 5) in the above embodiment. Unlike the case described above, the casing 60 is supported on a side wall opposite to the side wall 61 by a member that can be easily cut.

The holding member 100 is detachably attached to the right end of the light guide plate 10c as shown in FIG. 5, and is configured to press the reflector 10e against the projection on the wiring board 70. Hereinafter, the specific configuration will be described. The holding member 100 is a plate member 101 made of an elastic resin.
And a leaf spring 102. Plate member 10
1 includes both holding pieces 101a (only one holding piece is shown on one side in FIG. 5).
Extend from both sides of the base of the plate member 101 toward the left in FIG. Thereby, each of the holding pieces 101a
, Detachably sandwiches the end of the light guide plate 10c. Note that a grip portion 101b is formed in an upper portion of the outer wall of the holding member 100.

The leaf spring 102 is sandwiched between the upper portion of the holding member 100 and the right end of the reflector 10e in FIG. 5 in a shape curved to the left in FIG. As a result, the holding member 100 is
The reflector 10e is pressed toward the above-mentioned protrusion of the wiring board 70 via the leaf spring 102 while the light guide plate 10c is sandwiched by the light guide plate 10c, so that the reflector 10e is immovably fixed on the wiring board 70. In addition, the holding member 100 has an outer dimension that can be taken out from the opening 61 a of the casing 60. Other configurations are the same as those of the first embodiment.

In the second embodiment configured as described above,
When the display device is discarded in the same manner as in the first embodiment, the gripper 101b of the holding member 100 is gripped with a finger, the holding member 100 is detached from the light guide plate 10c, and the opening 6 is removed.
Pull out from 1a. Then, the reflector 10e is pulled out from the opening 61a. At this time, after the disconnectable member and the wiring connection between the wiring board 70 and the connector 80 are cut, the reflector 10e, the wiring board 70, and the cold-cathode tube 10b are integrated and easily outward from the opening 61a. Is pulled out.

Thus, the display device having good recyclability can be discarded in the same manner as described in the first embodiment. In addition, the reflector 10e is supported by the separable member to support the other side wall of the casing 60,
Further, if the wiring connection between the wiring board 70 and the connector 80 is made separable, if the cold-cathode tube 10b cannot be turned on, a new cold-cathode tube 10b, a reflector 10
e and the wiring board 70 can be exchanged integrally.

FIG. 6 shows a first modification of the second embodiment. In the first modification, in the holding member 100 described in the second embodiment, the rubber plate 104 is replaced with the leaf spring 102, and the upper portion of the holding member 100 and the right end of the reflector 10e shown in FIG. It is sandwiched between. As a result, the holding member 100 is
The reflector 10e is pressed against the projection of the wiring board 70 via the rubber plate 104 while the light guide plate 10c is sandwiched by the above, so that the reflector 10e is immovably fixed on the wiring board 70. Other configurations are the same as those of the second embodiment.

In the first modified example configured as described above, under the action of the rubber plate 104 similar to the leaf spring 102,
The reflector 10e is immovably fixed on the wiring board 70 as in the second embodiment. Other functions and effects are the same as those of the second embodiment. FIG. 7 shows a second modification of the second embodiment.

In this second modification, a holding member 110 is used instead of the holding member 100 described in the second embodiment.
The holding member 110 is a plate spring 11
1 and a screw 112. Leaf spring 11
1 is rotatably supported at its base by an end of a light guide plate 10c by fastening a screw 112. This leaf spring 111 allows the reflector 10e to move the reflector 10e against the elasticity of the second embodiment. Similar to the embodiment, it is immovably fixed on the wiring board 70 (see FIG. 7A). The leaf spring 111 rotates in the direction of the arrow shown in FIG. 7B based on the screw 112.

In this case, the same operation and effect as in the second embodiment can be achieved. In order to remove the reflector 10e, the cold cathode tube 10b, and the wiring board 70 from the opening 61a, the leaf spring 111 must be turned in advance in the direction of the arrow in FIG. Good. (Third Embodiment) FIG. 8 shows a third embodiment of the present invention.

In the third embodiment, a reflector 10f and a connector 120 are employed instead of the reflector 10e and the holding member 100 described in the second embodiment. The reflector 10f is fixed on the wiring board 70 as shown in FIG. 8B, unlike the reflector 10e described in the second embodiment, and the reflector 10f is formed as shown in FIG. As shown in b), it has a substantially U-shaped cross section.

The reflector 10f has a pair of connector terminals 19e.
9e extends from the left end of the reflector 10f in FIGS. 8A and 8B into the input terminal T of the cold cathode tube 10a.
8 and an input terminal H1 of the heater H (see FIG. 8C). Connector 120
Has a cylindrical connector main body 121, and a pair of connecting arms 122 is formed to extend from an outer wall of the connector main body 121. In the connector main body 121, a pair of connector terminals 122 extend from the bottom wall.

Thus, when the connector body 121 is joined to the right end of the reflector 10f shown in FIG. 8A, the pair of connecting arms 122 are opposed to the outward elastic force, and the right end of the reflector 10f is It is inserted into each locking cylinder 19f formed on the outer wall. At this time, the pair of connector terminals 123 are detachably connected to the input terminal T2 of the cold cathode tube 10a and the input terminal H2 of the heater H, respectively. However, the connection of each connector terminal 123 to each input terminal T2, H2 is performed by each connector terminal 19e.
Of the input terminals T1 and H1.

Further, each connecting arm 122 is retained so as to be detachable from each locking cylinder 19f by a claw 122a formed at the tip thereof. The connector main body 121 is detachably connected to the right end of the lower surface of the wiring board 70 at a terminal portion 124 which is connected to both connector terminals 123 as shown in FIG. 8A (FIG. 8B). reference). Other configurations are the same as those of the second embodiment.

In the third embodiment constructed as described above, when disposing the display device in the same manner as in the second embodiment, the connector 120 of the connector 120 is held in a state where both connecting arms 122 of the connector 120 are grasped by fingers. The main body 121 is pulled out from the opening 61a of the casing 60. At this time, as described above, the connection of each connector terminal 123 to each input terminal T2, H2 is made by the connection of each connector terminal 1
Since the connection between the input terminal 9e and the input terminals T1 and H1 is made stronger, the input terminal T1 of the cold-cathode tube 10b and the input terminal H1 of the heater H are separated from both connector terminals 19e.

Further, since both connecting arms 122 are gripped by fingers as described above, the claws 122a of each connecting arm 122
Are easily dissociated from each locking cylinder 19f. Therefore, each connecting arm 122 can be easily pulled out from each locking cylinder 19f. Accordingly, the terminal 1 of the connector 120
24 is separated from the wiring board 70. As a result, the connector 120 and the cold-cathode tube 10b are integrally taken out of the opening 61a of the casing 60.

Therefore, unlike the second embodiment, the cold cathode tube 10b can be taken out of the casing 60 while the reflector 10f is also left inside the casing 60 as an accessory component of the casing 60. as a result,
The disposal of the display device having good recyclability described in the second embodiment can be further improved. The cold cathode tube 10
In the case where b is merely incapable of lighting, the cold cathode tube 10b is separated from the connector body 121 of the connector 120, and a new cold cathode tube 10b is connected to the connector body 121.
The cold cathode tube 10b alone can be easily replaced by simply inserting it into the reflector 10f after connecting to the reflector 10f.

FIG. 9 shows a first modification of each of the above embodiments. In the first modification, the casing 60
The opening 61a of the side wall 61 is opened and closed by a lid 60a hinged to the upper end thereof. The lid 60a has a knob 62 on its outer wall. Therefore, when taking out the cold cathode tube 10b from the casing 60 as described in the above embodiments, the knob 6
2, the lid 60a may be opened in advance.

FIG. 10 shows a second modification of each of the above embodiments. In the second modification, the opening 61a of the side wall 61 of the casing 60 is opened and closed by a lid 60b as a filter. The lid 6
Ob is detachably inserted from above into each groove formed on both sides of the inner peripheral wall of the opening 61a. As a result, the opening 61a is closed so that it can be opened and closed.

Therefore, when removing the cold cathode tube 10b from the casing 60 as described in each of the above embodiments, the lid 60b may be removed from the opening 61a in advance. FIG.
FIG. 1A shows a third modification of the above embodiments. In the third modification, the opening 61 of the casing 60 is
a is closed by a lid 60c integrated with a connecting portion 63 formed at the lower portion of the left and right inner walls. The lid 60c has a knob 64 on its outer wall.

Therefore, when taking out the cold cathode tube 10b from the casing 60 as described in each of the above embodiments, the knob 64 is pulled to cut the connecting portion 63, thereby removing the lid 60c and opening the opening 61a in advance. open. In addition,
Unlike the third modification, as shown in FIG. 11B, a V-shaped groove 65 may be formed in the lateral direction along the vertical middle portion of the lid 60c.

In this case, to open the opening 61 a, the knob 64 is pulled and the lid 60 c is cut at the groove 65. Also, unlike the third modification, as shown in FIG. 11C, an opening 61 is provided at an intermediate portion in the vertical direction of the lid 60c.
The connection portions 66 corresponding to the connection portions 63 integrated with both the left and right inner walls of FIG.

Also in this case, the opening 61a is opened by pulling the lid 60c to cut each connecting portion 66.
According to the respective modified examples shown in FIGS. 9 to 11 of the above-described respective embodiments, it is possible to prevent intrusion of dust and the like into the casing 60 and to ensure good appearance of the casing 60. The same operation and effect as those of the above embodiments can be achieved.

FIG. 12 shows a modification of the third embodiment. In this modification, the cold cathode tube 10b and the reflector 10e described in the third embodiment are connected to the scale plate 10
1a, it is disposed at substantially the center in the vertical direction in the figure.
Incidentally, the position of the opening 61a of the casing 60 is also changed correspondingly. With this, the same operation and effect as those of the third embodiment can be achieved.

In implementing the present invention, the cold cathode fluorescent lamp 1
Instead of Ob, various linear discharge tubes such as a xenon tube may be employed. In practicing the present invention, the present invention may be applied to a vehicle display device, a vehicle digital display device, or the like employing a liquid crystal panel or EL using a cold cathode tube as a light source.

[Brief description of the drawings]

FIG. 1 is a plan view of a scale plate unit in a first embodiment of a vehicle display device according to the present invention.

FIG. 2 is a cross-sectional view of a main part along line 2-2 in FIG. 1;

FIG. 3A shows a cold cathode tube 10b according to the first embodiment.
FIG. 4B is a cross-sectional view illustrating a state where the reflector 10d is assembled to the wiring board 70, and FIG. 4B is a cross-sectional view illustrating a state where the cold cathode tube 10b and the reflector 10d are removed from the wiring board 70.

FIG. 4 is a sectional view of a main part showing a second embodiment of the present invention.

FIG. 5 is a view seen from the arrow A in FIG. 4;

FIG. 6 is a main part side view showing a first modification of the second embodiment.

FIG. 7A is a side view of a main part showing a second modification of the second embodiment, and FIG. 7B is a diagram showing a rotating state of a leaf spring 111 in the second modification. is there.

8A is a cross-sectional view of a main part in a horizontal direction showing a third embodiment of the present invention, FIG. 8B is a cross-sectional view of a main part in a vertical direction of the third embodiment, and FIG. FIG. 9 is a partially enlarged perspective view of the cold cathode tube of FIG.

FIG. 9 is a perspective view showing a first modification of each of the above embodiments.

FIG. 10 is a perspective view showing a second modification of each of the embodiments.

11A is a perspective view showing a third modification of each of the above embodiments, and FIG. 11B is a perspective view of FIG.
It is sectional drawing which follows 11b, (c) is a perspective view which shows the example which changed the said 3rd modification.

FIG. 12 is a plan view showing a modification of the third embodiment.

[Explanation of symbols]

10a: Scale plate, 10b: Cold cathode tube, 10d, 10e
... Reflector, 60 ... Casing, 60a ... Opening, 6
1 ... side wall, 61a ... opening, 70 ... wiring board.

Claims (4)

[Claims] 1. A display side opening (6) of a casing (60).
0a), a light source located in the casing and projecting light on the display plate, and a longitudinal reflector (10d) arranged in the casing and reflecting light from the light source. ), Wherein the light source is a linear discharge tube (10b) integrally attached to the reflector in a longitudinal direction thereof, and the reflector is disposed inside the casing in a longitudinal direction. An outer wall opening (61a) at a portion (61) of the outer wall of the casing corresponding to the movable direction of the reflector.
A display device for a vehicle in which is formed. 2. A display side opening (6) of a casing (60).
0a), a light source positioned in the casing and projecting light on the display plate, and a long reflector (10e) disposed in the casing and reflecting light from the light source. And a wiring board (70) disposed in the casing and connected to the light source, wherein the light source is linearly assembled to the reflector in a longitudinal direction thereof. A tube (10b), wherein the reflector is assembled to the wiring board, and the wiring board is supported in the casing so as to be movable in a direction of the board; A display device for a vehicle, wherein an outer wall side opening (61a) is formed in a portion (61) corresponding to a movable direction. 3. A display-side opening (6) of a casing (60).
0a), a light source positioned in the casing and projecting light on the display plate, and a longitudinal reflector (10f) disposed in the casing and reflecting light from the light source. ), Wherein the light source is a linear discharge tube (10b) movably mounted in the longitudinal direction along the reflector, and the reflector is supported in the casing. A display device for a vehicle, wherein an outer wall side opening (61a) is formed in a portion (61) of the outer wall of the casing corresponding to a movable direction of the discharge tube. 4. The vehicle display device according to claim 1, wherein the outer wall side opening is opened and closed by a lid (60a to 60c).