JPH0233554Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Technical Field of the Invention> This invention relates to a door lock display device that can confirm, even in the dark, whether the door lock mechanism of an automobile is in a locked or unlocked state. can be made easily and inexpensively,
Another object of the present invention is to provide a door lock display device that is highly durable and difficult to break.

<Prior Art> Automobile doors are provided with a locking mechanism to prevent accidents in which the doors open while the vehicle is driving. As a door lock operation knob for operating a lock mechanism, one having a shape as shown in FIG. 1, for example, is widely used. With this structure, when the door lock operation knob 1 is pulled upward, the operating force is transmitted to the lock mechanism through the transmission rod 2, and the lock is released, and when the operation knob is pushed downward, the door is locked. There is.

Since the door lock operation knob 1 is provided on each door, there are four door lock operation knobs in a four-door passenger car. Door lock operation knob 1 when the surroundings are dark, such as at night.
It is difficult to visually confirm whether the surface is upward or downward.

In addition, if it is dark, you may not be able to immediately locate the door lock operating knob 1 if you are not familiar with it, which is also inconvenient.

For this reason, for example, a light source such as a miniature bulb or LED is attached to the door lock operation knob 1,
It is conceivable to emit green light when the door is in the locked state and red light when the door is in the unlocked state, thereby displaying the door locked state by emitting light.

However, since the door lock operation knob 1 is small in shape as shown in the figure, it is difficult to attach two light sources to the door lock operation knob 1. Furthermore, since the light source must be constructed to be replaceable, the structure of the operation knob 1 becomes complicated and easily broken. Furthermore, since the door lock operation knob 1 is structured to move up and down, the lead wire connected to the light source is likely to be strained and break. Therefore, the structure in which the light source is directly attached to the operating knob 1 has many problems in terms of reliability.

<Purpose of the invention> This invention provides a door lock display device that can easily check the door lock status even in the dark, and can also display the position of the door lock operation knob, and is highly reliable and difficult to break. This is what I am trying to do.

<Summary of the invention> In this invention, a light guide is connected to the door lock operation knob, and the extended end of the light guide is made to face a light source fixed to the door. A two-color optical filter is arranged between the light source and the end of the light guide, so that when the operating knob is moved up or down, the end of the light guide changes into a different color filter of the optical filter, The device is configured to transmit light of different colors to the door lock operating knob through the light guide, irradiate this colored light to the outside at the operating knob, and display the locked state of the door based on the color of the irradiated light. .

<Embodiment of the invention> FIG. 2 shows an embodiment of this invention. In this invention, a light source 4 is provided in the interior space of the door 3.
The light source 4 is fixedly attached to the door 3. In this example, the light source 4 uses an incandescent bulb, and in front of the light source 4, for example, red and green optical filters 5R and 5G are installed.
Place. The optical filters 5R and 5G are arranged in the direction of movement of the door lock operating knob 1. In other words, in this example, the red optical filter 5R is arranged on the upper side, and the green optical filter 5G is arranged on the lower side, and the surfaces of these optical filters 5R and 5G are arranged in a direction parallel to the moving direction of the door lock operation knob 1. do.

On the other hand, one end of the light guide 6 is attached to the door lock operation knob 1. The light guide 6 can be a rod-shaped body made of a transparent resin material such as acrylic resin, and its end face is guided to the surface of the door lock operation knob 1.

The other end of the light guide 6 is bent at a right angle so that its end surface becomes a plane parallel to the moving direction of the door lock operation knob 1, and the end surface is connected to optical filters 5R and 5G.
to face the surface created by.

When the door lock operation knob 1 is pulled upward, the end surface of the light guide 6 faces the red optical filter 5R, and when the door lock operation knob 1 is pushed downward, the end surface of the light guide 6 is green. Their mutual positional relationship is set so that they face the optical filter 5G.

<Operation and Effect of the Invention> According to the door lock display device of this invention described above, when the door lock operation knob 1 is pulled upward, that is, in the unlocked state, the light guide 6
The end face faces the red optical filter 5R. Therefore, only the red light from the light source 4 is selected by the optical filter 5R and transmitted to the door lock operation knob 1, and the red light is irradiated from the end face led out to the surface of the door lock operation knob 1. Therefore, when the door lock operation knob 1 lights up in red, it indicates that the door is in the unlocked state.

When the door lock operation knob 1 is pushed downward, the tip of the light guide 6 moves downward to a position facing the green optical filter 5G. Therefore, only the green light from the light source 4 is selected by the optical filter 5G, and the green light is transmitted through the light guide 6 to the door lock operation knob 1, and the green light is emitted from the end surface of the light guide 6. irradiate. Door lock operation knob 1
When the light turns green, it indicates that the door is locked.

According to this invention, the locked and unlocked states of the door can be indicated by the color of the light emitted from the door lock operation knob 1.
To easily and surely confirm whether a door is locked or unlocked even in a dark place. Furthermore, since light is emitted, even an inexperienced person can know the position of the door lock operation knob 1, which is convenient.

In addition, the door lock operation knob 1 simply has a light guide 6.
Since the parts are simply joined together, there is no risk of damage occurring. Furthermore, since the light source 4 can be fixed to the door, the lead wire connecting the light source 4 and the power source will not move. Accidents such as breakage of the lead wire are also less likely to occur.

Therefore, according to this invention, the door lock operation knob 1 can be made robust, and the light source 4 is fixed to prevent lead wire breakage from occurring, making it possible to provide a door lock display device that is less likely to break down and is highly reliable. It is possible to provide a door lock display device with high performance.

<Modified embodiment of the invention> In the above description, the invention was applied to a door lock operating knob that was configured to be moved up and down to switch between the locked state and the unlocked state.
It is easy to understand that the present invention is not necessarily limited to this structure and can be applied to door lock operating knobs of other operating types.

Further, in the above description, a structure is described in which a hole is formed in the door lock operating knob 1 and the light guide 6 is inserted into the hole and coupled, but the door lock operating knob 1 itself is formed of a light guide material, It is also possible to integrally form a rod-shaped light guiding portion projecting from the door lock operation knob 1 formed of a light guiding material, and to make the end face of this light guiding portion face the optical filters 5R and 5G of different colors.

Further, although the optical filters 5R and 5G are made of red and green, it is easy to understand that other color combinations may be used.

[Brief explanation of the drawing]

FIG. 1 is a perspective view for explaining the structure of a conventional door lock operation knob, and FIG. 2 is a perspective view for explaining the main parts of the door lock display device of this invention. DESCRIPTION OF SYMBOLS 1... Door lock operation knob, 2... Transmission rod, 3... Door, 4... Light source, 5R, 5G... Optical filter, 6... Light guide.

Claims (1)

[Scope of Claim for Utility Model Registration] A: A door lock operation knob that can be operated in two positions, a locked position and an unlocked position; B: A light guide whose one end is connected to this door lock operation knob; and C: This light guide. A door lock display device comprising: a light source that faces the other end and provides light of different colors to the light guide in accordance with the operation position of the door lock operation knob.