JPH0648207A - Display device for shift position of shift lever for automatic transmission - Google Patents

Abstract

PURPOSE:To illuminate display apertures evenly which emit light from one lamp by increasing the light in each apertures. CONSTITUTION:A light guiding plate 34, positioned inside display apertures 15 is formed thin gradually toward one side from the other side. A lamp is arranged in a face-to-face relation with a light guiding part 36 of the plate 34. The light guiding part 36 is formed with a concaved face at one end of the thick side. A concaved part 37 formes a rough reflection face 38 in an opposite manner to the apertures 15: Each rough reflection face 38 is gradually increased in its roughness from the light guiding part 36 side at one end to the increased and the light to the apertures 15 is also increased. Through each aperture 15 even illumination is made possible to the areas from that close to the lamp to that far therefrom.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift lever operating position display device for an automatic transmission, and more particularly to a device for optically displaying the operating position of a shift lever along a passage hole.

[0002]

2. Description of the Related Art Recently, an operating position display device for a shift lever of an automatic transmission of an automobile has been recently used, for example, in the actual open area 2-55463.
As described in Japanese Patent Publication No. 8, a slide plate in which a shift hole through which a shift lever passes is formed on the upper surface of the outer case, and slides in the front-rear direction along the inner surface of the outer case just below the inside of the through hole. The slide plate is provided with a through hole for inserting the shift lever, the slide plate is moved in the front-rear direction in accordance with the movement of the shift lever in the front-rear direction, and the pointer portion formed on the slide plate is used for shifting. It is designed to indicate the shift position of the lever. An indicator window hole and an indicator window hole are formed along the passage hole in the outer case, and the indicator window hole and the indicator window hole are illuminated by light emitted from one lamp arranged in the inner case. The structure is adopted.

[0003]

In the structure of the operation position display device of the shift lever which illuminates the display portion entirely by the above-mentioned single lamp, the light guide member is provided in the outer case to prevent the light from the light source from being emitted. It is necessary to evenly illuminate the entire display surface.In particular, the shift lever device that has been widely adopted recently combines the operation of the shift lever in the front-rear direction and the operation in the lateral direction orthogonal to the front-rear direction. A structure is adopted that draws a substantially crank-shaped trajectory to improve the feeling of manual operation.In such a structure, display window holes are formed on both sides along the indicator window hole formed in the center. Since the illumination area is wide, the amount of light differs between the part of the light source near the lamp and the part far from the lamp, and the part far from the lamp is dark and cannot be illuminated uniformly, making it easy to check the display on the display window hole. Can There is a problem.

Further, for example, as described in Japanese Utility Model Publication No. 2-21300, a structure in which a light emitting concave-convex surface is formed so that light is introduced into an indicator moved to a position farthest from the lamp. 2. Description of the Related Art An operation position display device for a shift lever of an automatic transmission of an automobile is known. However, in such a structure, although the amount of light can be increased at the position where the light emitting uneven surface is formed, there is a problem that the entire surface cannot be uniformly illuminated.

The present invention has been made in view of the above problems, and an operation position display of a shift lever of an automatic transmission capable of uniformly illuminating the display window holes while increasing the light amount of each display window hole illuminated by one lamp. A device is provided.

[0006]

SUMMARY OF THE INVENTION An operation position display device for a shift lever of an automatic transmission according to the present invention includes an outer case having a passage hole of the shift lever and a display portion corresponding to the passage hole, and a passage of the shift lever. In a shift lever operation position display device including a slide plate slidably arranged inside the hole and having a through hole for the shift lever, the display unit includes an instruction window hole and a side portion of the instruction window hole. Each of the indicator portions has a display window hole formed separately, and the indicator portion is provided inside the instruction window hole and moves in cooperation with the slide plate, and the indicator portion is provided inside the display window hole from one end side. A light guide plate having a thickness gradually reduced toward the other end side; and a lamp arranged so as to face the light introduction part of the light guide plate,
The light guide plate has a light guide portion having a concave curved surface formed at one end portion on the thick side and is provided with a reflective rough surface formed by a concave portion facing the display window hole, and each reflective rough surface is at the one end side. The roughness is gradually increased from the light introducing portion side to the other end side.

[0007]

In the operation position display device for the shift lever of the automatic transmission according to the present invention, the light emitted from the lamp is incident from the light introducing portion of the light guide plate, and the light incident on this light guide plate is reflected by the rough surface. The display window hole of the display portion of the outer case is reflected and illuminated. Further, since the light introduction part of the light guide plate is formed in a concave curved surface, the amount of light transmitted from the lamp increases, the amount of light illuminated to the display window hole increases, and further, the reflection of the light guide plate illuminating the display window hole The illumination light reflected on the rough surface increases, and the roughness gradually increases from the light introducing part side on one end side toward the other end side, so that each display window hole extends from the part near the lamp to the part far from it. It is illuminated with an equal amount of light.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of one embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 10 denotes an outer case formed of synthetic resin or the like. On the upper surface of the outer case 10, a through hole 12 for a shift lever (not shown) of the automatic transmission is formed in a substantially crank shape in the front-rear direction. It is bent and formed. As shown in FIG. 1, the passage hole 12 has a parking operation position, a reverse operation position, a neutral operation position,
The drive operation position is arranged on a straight line that extends in the front-rear direction, and is located laterally (on the left side in the drawing) from this drive operation position to form a fourth speed operation position.
The speed operation position is arranged on a straight line that extends in the front-rear direction, the second speed operation position is formed by bending the third speed operation position into a substantially L-shape, and the second speed operation position is laterally (right side in the drawing). 1
A fast operating position is formed.

A display portion 13 is formed on one side of the upper surface of the outer case 10 (on the left side in the drawing).
Are operated corresponding to the parking operation position, the reverse operation position, the neutral operation position, the drive operation position (fourth speed operation position), the third speed operation position, and the second speed operation position (first speed operation position) of the passage hole 12. Pointing window 14 for pointing position
Are formed. In addition, a display window hole 15 for displaying the operation position is formed corresponding to one side (left side in the drawing) of each instruction window hole 14 of the fourth speed operation position, the third speed operation position, and the second speed operation position. The parking operation position, reverse operation position, neutral operation position, drive operation position, 1
A display window hole 15 for displaying the parking operation position, the reverse operation position, the neutral operation position, the drive operation position, and the operation position of the first speed operation position is provided corresponding to the other side (right side in the drawing) of the speed operation position instruction window 14. Each formed, central indicating window hole
Display window holes 15 are separately formed on both sides of 14.

Next, 16 is a slide plate which slides in the front-rear direction along the inner surface of the outer case 10, and a through hole 17 for inserting the shift lever is formed as a horizontally elongated rectangular hole. There is. This slide plate 16
An indicator 18 is integrally formed on one side (left side in the drawing) of the through hole 17 of the indicator 18, and an indicator plate 19 made of, for example, a red tape is adhered to the indicator 18, as shown in FIG. Reference numeral 18 is adapted to selectively face the inside of the instruction window hole 14 of the outer case 10 at the parking operation position, the reverse operation position, the neutral operation position, the drive operation position and the first speed operation position.

Reference numeral 22 is a plate-shaped shield plate made of a flexible and soft material, and has an insertion hole 23 through which the shift lever is inserted, and the shield plate 22 is as shown in FIG. The slide plate 16 is slidably engaged with and held by engagement edges 24 formed on the front and rear side edges of the through hole 17, and one end side (right side in FIG. 3) of the shielding plate 22 is bent inward. . The shield plate 22 is slidable in the left-right direction along the inside of the slide plate 16 in accordance with the lateral movement of the shift lever.

Further, reference numeral 30 is a display plate formed of a translucent resin, which is fixed to the inner surface of the outer case 10 by heat staking or the like, and the display plate 30 has the display window holes 14 and the display windows. Lens portions 31 and 32 which are respectively inserted into the holes 15 are formed, and an indication 33 such as a display symbol and a character is formed on the back surface of the lens portion 32 which is inserted into the display window hole 15 by printing or the like. .

Reference numeral 34 denotes a light guide plate, which is abutted on the inner side of the display plate 30 and together with the display plate 30, the outer case.
It is fixed to the inner surface of 10 by heat staking. The light guide plate 34 is formed to have a taper thickness gradually decreasing from one end side to the other end side, and a display transmission window hole 35 is formed in the light guide plate 34 in a groove shape over substantially the entire length. The transparent window hole 35 is
The outer case 10 faces the inside of the instruction window hole 14 at the parking operation position, the reverse operation position, the neutral operation position, the drive operation position, and the first speed operation position.

As shown in FIG. 5 to FIG. 6, the light guide plate 34 has a light guide portion 36 having a concave curved surface formed at one end thereof, and further, an inner surface of the light guide plate 34 at the parking operation position. Except for the display window holes 15, a reflective rough surface 38 formed by a concave portion 37 having a serrated widthwise triangular cross section is formed so as to face each display window hole 15, and each of the reflective rough surfaces 38 is formed.
Is formed so that the roughness gradually increases from the light introducing portion 36 side on the one end side toward the other end side. And, for example, the concave portion 37 of the reflecting rough surface 38 facing the display window hole 15 at the backward operation position is 0.1 m.
The recess 37 of the reflecting rough surface 38 facing the display window hole 15 at the neutral operation position has a depth of 0.2 mm and the reflecting rough surface facing the display window hole 15 at the drive operation position and the fourth speed operation position has a depth of 0.2 mm. The recess 37 of the surface 38 is formed to have a depth of 0.3 mm. The concave portions 37 of each rough reflective surface 38 are formed at the same pitch.

An indicator 18 provided on the slide plate 16 is disposed in the display transmission window hole 35 of the light guide plate 34, and the indicator plate 19 of the indicator 18 faces the lens portion 31 of the display plate 30. It is supposed to be done.

A guide rail portion 4 for sandwiching and guiding the slide plate 16 is provided between the outer case 10 and an inner case 40 provided inside the outer case 10.
The guide rails 41 and 42 are provided with arcuate projections 43 and 44, respectively, so that the slide plate 16 can be smoothly slid with a certain clearance.

Further, as shown in FIG. 2, a lamp socket 46 for mounting a lamp 45 facing the light introducing portion 36 of the light guide plate 34 is provided at one end of the inner case 40. A concave arc-shaped cover portion 48 that surrounds the lamp 45 is formed on both sides of the light introducing portion 36 of the light guide plate 34.

Next, the operation of this embodiment will be described.

The light emitted by the lighting of the lamp 45 enters the light guide plate 34 from the light introduction part 36 of the light guide plate 34, and the display window hole 15 of the display part 13 of the outer case 10 has a lens of the translucent display plate 30. Illuminated through the portion 32 to display the operation position of the shift lever. Further, the light leaked into the display transmission window hole 35 of the light guide plate 34 illuminates the red indicator plate 19 of the indicator portion 18 fitted in the display transmission window hole 35 of the light guide plate 34, and the lens portion 31 of the instruction window hole 14 is illuminated. The indicator window hole 14 of the display unit 13 corresponding to the operation position is transmitted with a red light. Then, when the shift lever of the automatic transmission is operated along the passage hole 12 of the outer case 10 in accordance with the display 33 of the display window hole 15 of the display unit 13, the slide plate 16 moves the outer case 10 according to the movement of the shift lever. And the inner case 40. This movement of the slide plate 16 moves the red indicator plate 19 arranged in the display transmission window hole 35, and the indicator window hole corresponding to the shift position of the shift lever.
It faces the inside of 14 and penetrates through the lens part 31
Illuminates red to indicate the shift lever operation position.

The light emitted from the lamp 45 is incident from the light introducing portion 36 of the light guide plate 34, and the light incident on the light guide plate 34 is reflected by the reflecting rough surface 38 and is displayed on the display portion of the outer case 10. The display window hole 15 of 13 is illuminated. Then, the light guide plate 34
Since the light introducing portion 36 of the lamp is formed into a concave curved surface, the lamp 45
The amount of light transmitted from the display window hole 15 is increased, and the amount of light illuminated on the display window hole 15 is increased. Moreover, a light guide plate that illuminates the display window hole 15
The illuminating light reflected by the reflecting rough surface 38 of 34 is increased, and further, the roughness is gradually increased from the light introducing portion 36 side on one end side toward the other end side. Even from a near part to a distant part is illuminated with an equal amount of light.

The passage hole 12 is shielded by the slide plate 16 in which the shift lever is inserted in the through hole 17 by the movement of the shift lever, and the rectangular through hole 17 is shielded by inserting the shift lever in the insertion hole 23. It is shielded by the plate 22. When the shift lever is switched between the drive operation position and the fourth speed operation position, and the switching operation between the third speed operation position, the second speed operation position and the first speed operation position, the shift lever is moved in the lateral direction. At this time, the shield plate 22 slides laterally, and the through hole 17 of the slide plate 16 is not opened.

Further, in this embodiment, the reflecting rough surface 38 formed facing the display window hole 15 of the light guide plate 34 is formed on the inner surface of the light guide plate 34, but it is not limited to the inner surface and is formed on the outer surface. You can also do it.

Next, the configuration of another embodiment will be described with reference to FIGS.

In the above embodiment, the reflecting rough surface 38 formed facing the display window hole 15 of the light guide plate 34 is formed by the serration-shaped concave portion 37 having a triangular cross section in the width direction. The rough surface 38 can also be formed by a large number of conical hole-shaped recesses 37. Each reflection rough surface 38 formed by the conical hole-shaped recess 37 is formed so that the roughness gradually increases from the light introducing portion 36 side at the one end side toward the other end side.

Also in the structure of this embodiment, the amount of illuminated light reflected by the rough reflecting surface 38 of the light guide plate 34 for illuminating the display window hole 15 is increased, and further, the light introduction portion 36 side at one end side is more than the other end side. Since the roughness was gradually increased toward the
It is illuminated with an equal amount of light from the part near to the part far from.

Further, in the above embodiment, the outer case
Although the shift lever passage hole 12 formed on the upper surface of 10 is formed by bending in a substantially crank shape, it can be applied to a structure in which the shift lever passage hole 12 is formed in a linear shape. Although the display window holes 15 of the formed display portion 13 are formed on both sides of the indicator window hole 14, they can be applied to a structure having only one side.

[0028]

According to the present invention, the light emitted from one lamp is made incident from the light introducing portion of the light guide plate, and the light made incident on this light guide plate is reflected by the reflecting rough surface so that the outer case When illuminating the display window hole of the display unit, since the light introduction part of the light guide plate is formed into a concave curved surface, the amount of light transmitted from the lamp increases, the amount of light illuminated to the display window hole increases, and The light reflected by the rough surface of the light guide plate that illuminates the light increases, and the roughness gradually increases from the light introducing part side of one end toward the other end, so each display window hole is near the lamp. Even the part far from is illuminated with an equal amount of light.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an operation position display device for a shift lever of an automatic transmission according to an embodiment of the present invention.

FIG. 2 is a vertical sectional side view of the same light guide plate section.

FIG. 3 is a vertical sectional front view of the same.

FIG. 4 is a vertical sectional side view of the above slide plate portion.

FIG. 5 is a perspective view of the same light guide plate.

FIG. 6 is a bottom view of the same light guide plate.

FIG. 7 is a plan view of the same light guide plate.

FIG. 8 is a perspective view of the same operation position display device.

FIG. 9 is a perspective view of a light guide plate of a shift lever operation position display device of an automatic transmission according to another embodiment of the present invention.

FIG. 10 is a vertical sectional side view of a part of the same light guide plate section.

[Explanation of symbols]

 10 Outer case 12 Pass-through hole 13 Display section 14 Indicator window hole 15 Display window hole 16 Slide plate 17 Through hole 18 Indicator section 23 Insertion hole 34 Light guide plate 36 Light introducing section 37 Recessed surface 38 Reflective rough surface 45 Lamp

Claims (1)

[Claims] 1. An outer case having a shift lever passage hole and a display portion corresponding to the passage hole, and a slide having a through hole for the shift lever slidably disposed inside the passage hole of the shift lever. In a shift lever operation position display device including a plate, the display unit has an indicator window hole and display window holes formed separately on the sides of the indicator window hole. An indicator provided to move in cooperation with the slide plate, a light guide plate disposed inside the display window hole and having a thickness gradually reduced from one end to the other end, and the light guide plate The light guide plate has a concave curved light introduction portion formed at one end portion on the thick side, and the lamp is formed by a concave portion facing the display window hole. Provide a reflective rough surface for each Each reflection rough surface operating position display device of a shift lever of an automatic transmission, characterized in that to increase the gradually roughness toward the other end side of the light introducing portion side of the one end side.