JPH0226020Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an instrument pointer in which the pointer itself shines.

For example, there has been a demand for instrument pointers in which the entire pointer shines to improve visibility when using instruments at night, such as automobile instruments, and for design reasons.

Conventionally, as a pointer for such a meter, the pointer shown in Fig. 1,
There was something like the one shown in Figure 2.

In FIG. 1, 3 is a pointer, 3a is its tip, 3b is its rear end, and the tip 3 of the pointer 3.
An integral pointer cap 5 is mounted between the pointer a and the rear end portion 3b so as to cover the upper surface and both left and right side surfaces of the pointer 3.

The operation of the conventional pointer will be explained with reference to FIG.

1 is a dial of a meter (not shown), and a light guide plate 2 provided on the back side of the dial is directly irradiated with light from a light source (not shown).

The irradiated light is received around the entire circumference of the transparent central light receiving part 3c where the pointer 3 faces the light guide plate 2, is reflected in the direction of the arrow on the conical reflecting surface 4 provided there, and is reflected by the pointer 3 as shown by the arrow. 3 tip 3a
and the rear end portion 3b, making each of them shine.

Pointer cap 5 is a cylindrical integral piece attached to the ceiling.
is fitted and fixed to the upper part 6a of the pointer support shaft 6, as shown in FIG.

However, in the conventional pointer having such a structure and operation, the pointer cap 5, which is an integral part for preventing light leakage, is attached from the top surface of the pointer 3.
The shining portion of the pointer 3 was separated by the pointer cap 5, and the entire pointer 3 could not be made to shine.

In other words, it has the drawbacks of low visibility during nighttime use and design limitations.

The purpose of this invention is to overcome the drawbacks of the conventional pointers mentioned above, improve visibility during night use by illuminating the entire pointer, and provide an improved instrument pointer with an excellent design. Our goal is to provide you with the following.

Hereinafter, the present invention will be specifically explained with reference to the drawings.

FIG. 3 is a perspective view of a meter pointer according to an embodiment of the present invention, and FIG. 4 is an exploded perspective view thereof.

As shown in FIG. 3, in the present invention, the entire upper surface of the pointer body 11 is exposed, and a pair of semi-cylindrical split type caps 12 and 13 each fitted with a ceiling are fitted only from the sides. (4th
(see figure). 14 is a transparent central light receiving section for guiding light to the pointer body 11.

Using Figures 5 to 7, connect caps 12 and 13.
This section explains how to attach and detach the .

Arms each having a groove 11a and a protrusion 11b are formed on both left and right sides of the upper part of the central light receiving part 14 of the pointer 11, and the cap 1 to be fitted therein is formed.
2 and 13 are also provided on the back surfaces of the caps 12 and 13, respectively, with protrusions 12a and 13a that fit into the grooves 11a, and protrusions 12d and 13d that fit with the notches 11c of the protrusions 11b of the arms. Therefore, by pushing in the caps 12, 13 from above, the positions of the caps 12, 13 are uniquely determined, and the caps 12, 13 do not float eccentrically back and forth in the longitudinal direction of the pointer body 11.

Furthermore, since a pair of claws 12b, 12c, 13b, 13c are provided at the front and rear of the lower ends of the caps 12, 13, by fitting these to the bottom of the pointer body 11, the caps 12, 13 can be adjusted at the front and rear.
It is securely fixed without floating left or right or up or down.

When removing it, the claws 12b, 12c, 13b, and 13c may be pulled out first in the opposite direction to the arrow in FIG.

In order to make attachment and detachment of such a cap easier and more reliable, it is preferable that the cap be made of a highly elastic material such as an opaque resin or a thin metal plate. Being opaque is necessary to prevent light leakage.

Finally, the illumination effect of the instrument pointer of the present invention will be explained using FIG.

Light guided from an arbitrary light source (not shown) passes through the light guide plate 2 provided on the back side of the dial 1 of the instrument as shown by the arrow, and is reflected by the lower conical lighting section 15 of the central light receiving section 14. and is guided toward the upper pointer body 11. There is a cavity 17 in the upper part of the central light receiving part 14,
18 is formed, and by being reflected by the curved surfaces of these cavities 17 and 18, the light reaches the pointer body 11.
The light reaches both the tip and the rear end of the pointer evenly, and the entire pointer body 11 can be made to shine uniformly. 1
6 is a pointer support shaft.

As explained above, according to the present invention, the following effects can be achieved.

A pair of caps are attached to both the left and right sides of the pointer in a divided manner, avoiding the top surface of the pointer, so the entire pointer shines evenly and continuously from the tip to the rear end, making it easier to read than conventional pointers. This improves performance and eliminates design constraints.

The cap can be easily and reliably fitted into a predetermined position on the side of the pointer without complicated operations such as welding or press-fitting.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a conventional pointer, Fig. 2 is a vertical sectional view thereof, Fig. 3 is a perspective view of an instrument pointer according to an embodiment of the present invention, Fig. 4 is an exploded perspective view thereof, and Fig. 5 is a perspective view of a conventional pointer.
6 is a partially enlarged view of the cap, FIG. 7 is a cross-sectional view of the cap, and FIG. 8 is a longitudinal cross-sectional view of the cap. 11...Pointer body, 11a...Groove, 11b...
Projection, 11c... Notch, 12, 13... Split cap, 12a, 12d, 13a, 13d...
Projection portions, 12b, 12c, 13b, 13c...Claw portions, 14...Central light receiving portion.

Claims (1)

[Scope of utility model registration request] In an instrument pointer that illuminates the pointer itself by guiding light into the inside of the pointer, a pair of split-type caps are provided to cover the sides of the pointer from both the left and right sides, and are provided on the back side of each pair of caps on the left and right sides of the pointer, respectively. A pointer for an instrument, characterized in that it is provided with a protrusion that can fit into the arm portion of the pair of caps, and claw portions that can fit into the bottom portion of the pointer are provided at the front and rear of the lower ends of each of the pair of caps.