JPH0616867U - Speed display - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a speed display device which allows a driver to instantly recognize whether or not the current actual speed is a safe speed and promotes safe driving. In a speed display device including a speedometer 11 that analog-displays a speed signal from a speed signal converter 10 as an actual speed, a comparison circuit 15 that compares the actual speed with a preset speed limit is used. The motor 16 is connected to the signal converter 10, the comparison circuit 15 determines the difference A between the speed limit and the actual speed, and the motor 16 that rotates positively and negatively according to the positive or negative value of the difference A causes the display means (rotation means). The speedometer 1 has a display mechanism for changing the drum 17
It is characterized by being installed in parallel with 1. By visually observing the change in the pattern or color formed on the rotating drum 17 through the display window 18, it is possible to recognize whether or not the speed is safe.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of a speed display device, and more specifically, to a speed display device that prompts a driver to instantly recognize whether or not the current actual speed is a safe speed to promote safe driving. It is a thing.

[0002]

[Prior art]

 An analog meter having the structure shown in FIG. 3 is generally used as a vehicle speed display device.

That is, in FIG. 3, the speed pulse of the automobile is converted into a speed signal by the speed signal converter 1, and this speed signal operates the movement of the speedometer 2 to rotate the pointer 3. Has become.

Therefore, the driver can recognize the current actual speed by reading the scale of the meter 2 on which the pointer 3 is located in an analog manner, and the driver can recognize the speed limit of the road on which the vehicle is traveling, By comparing the read actual speed with the actual speed, it was understood whether the actual speed was a safe speed or not.

However, in the conventional speed display device, it takes a considerable amount of time for the driver to read the actual speed and compare the read actual speed with the speed limit, especially when traveling at high speed on a highway. Since it is necessary and time loss occurs in this judgment, there is a problem that other attention is distracted during the time loss when it is judged whether the current actual speed is a safe speed, resulting in danger. .

Further, in a conventional speed display device, when a speedometer is provided with a warning device that sounds a buzzer or a chime to warn the driver when the traveling speed reaches a predetermined speed. However, this warning device is mainly intended to confirm safety when driving on highways, and is normally set to operate at high speeds of 100 to 110 Km / h. When driving on a highway of about 80 km / h, it was not possible to give the driver awareness of whether or not the actual speed was a safe speed.

[0007]

[Problems to be solved by the device]

 The present invention has been achieved as a result of a study for solving the problems in the above-described conventional speed display device.

[0008] Therefore, an object of the present invention is to provide a speed display device that allows a driver to instantly recognize whether or not the current actual speed is a safe speed and promote safe driving.

[0009]

[Means for Solving the Problems]

 In order to achieve the above object, the speed display device of the present invention is a speed display device equipped with a speedometer that analog-displays a speed signal from a speed signal converter as an actual speed. A comparison circuit for comparing with a preset speed limit is connected to the speed signal converter, and the comparison circuit determines a difference A between the speed limit and the actual speed and determines whether the difference A is positive or negative. It is characterized in that a display mechanism for changing the display means by a motor that rotates in the forward and reverse directions is provided in parallel with the speedometer.

[0010]

[Action]

 In the speed display device of the present invention, a comparison circuit for comparing an actual speed with a preset speed limit is connected to the speed signal converter, and the comparison circuit determines the difference A between the speed limit and the actual speed. Then, the display mechanism for changing the display means by the motor rotating positively and negatively according to the positive or negative value of the difference A is provided in parallel with the speedometer, so that the driver can visually recognize the display means of the display mechanism. It is possible to instantly recognize whether or not the actual speed is a safe speed.

Therefore, according to the speed display device of the present invention, it is possible to eliminate the risk of time loss in safety confirmation especially when traveling on a highway, and enable safe driving.

[0012]

【Example】

 Hereinafter, an embodiment of the speed display device of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic mechanism explanatory view showing an embodiment of the speed display device of the present invention, and FIG. 2 is a mechanism explanatory view of the display means in FIG.

In the embodiment shown in FIG. 1, M (solid line portion) is the speed display device portion of the present invention in which the speedometer 11 and the display means H (dotted line portion) are arranged in parallel, and K (dotted line portion) is the above-mentioned. The display mechanism part as an operation part of the display means H is shown.

In FIG. 1, a speed pulse is converted into a speed signal by a speed signal converter 10, and this speed signal actuates a movement of a speedometer 11 to rotate a pointer 12 to change an actual speed. It is similar to the conventional speed display device described above in that it is configured to read in an analog manner.

However, in the speed display device M of the present invention, the display mechanism K is provided in parallel with the speedometer 11, and the display mechanism displays the relationship between the actual speed and the speed limit. The feature is that the driver can instantly recognize whether or not the actual speed is a safe speed.

That is, in the display mechanism in the speed display device M of the present invention, the rotary drum 17 as the display means H and the display window 18 for displaying a part of the rotary drum 17 to the driver are arranged side by side with the speedometer 11. Then, it is arranged so that it can be seen by the driver, and the operating mechanism K of the display means H is constructed as follows.

First, the speed signal converter 10 that sends a speed signal to the speedometer 11 is connected to the comparison circuit 15 via the speed limit setting unit 14.

In the speed limit setting unit 14, the speed limit of the road on which the vehicle is going to travel is set and input by the setting switch 13.

In the comparison circuit 15, the preset speed limit is compared with the actual speed input from the speed signal converter 10, and the difference A (speed limit−actual speed) is determined. .

The comparison circuit 15 is connected to a motor 16 that rotates in the normal and reverse directions according to the value of A, and the motor 16 is configured to rotate the rotary drum 17 as a display unit in the normal and reverse directions. There is.

A pattern 19 consisting of a plurality of lines parallel to the axial direction is continuously formed on the circumference of the rotary drum 17, and a part of the pattern is exposed from the display window 18.

Here, for example, when the speed limit is set to 100 Km / h, when the actual speed is 120 Km / h (A <0) and when the actual speed is 80 Km / h (A> 0), Since the rotation direction of the motor 16 is different from the normal direction, the rotation direction of the rotary drum 17 is also different from the normal direction.

Therefore, as shown in FIG. 2, when the pattern 19 recognized from the display window 18 is A> 0 in which the actual speed is smaller than the speed limit, the pattern 19 is in the arrow X direction (FIG. 2A). , When the actual speed is equal to the speed limit, A = 0, the vehicle is stationary (Fig. 2 (b)), and when the actual speed exceeds the speed limit, A <0, the arrow Y direction (Fig. 2 (c)). In addition, since the driver moves or stands still, the driver must know the moving direction of the pattern 19 beforehand, or the driver can move around the display window 18 in the X direction and in a stationary state, for example. If the danger is displayed, the driver can instantly recognize whether or not the safe speed is reached by visually recognizing the moving state of the pattern in the display window 18.

In this case, the driver not only needs to visually recognize the display window 18 of the display mechanism, but also has two steps of checking the display speed of the speedometer and grasping the difference between the speed limit and the actual speed as in the conventional case. Since it is possible to recognize safety almost instantly without any recognition, there is little time loss for safety confirmation, and it is possible to drive safely without causing danger such as distraction. .

In the above embodiment, the pattern 19 is formed on the circumference of the rotary drum 17 of the display mechanism. For example, on the circumference of the rotary drum 17, A <0 is red, A = Various colors may be provided such that 0 is yellow and A> 0 is blue, and it is possible to recognize whether or not the vehicle is at a safe speed by changing the display color visually recognized from the display window 18. it can.

[0027]

[Effect of device]

 As explained above, in the speed display device of the present invention, the comparison circuit for comparing the actual speed and the preset speed limit is connected to the speed signal converter, and the speed limiter and the actual speed are controlled by the comparison circuit. The display mechanism for changing the display means by a motor that rotates positively and negatively according to the positive or negative value of the difference A is installed in parallel with the speedometer. By visually recognizing, it is possible to instantly recognize whether or not the actual speed is a safe speed.

Therefore, according to the speed display device of the present invention, it is possible to eliminate the risk of time loss in safety confirmation particularly when traveling on a highway, and enable safe driving.

[Brief description of drawings]

FIG. 1 is a schematic mechanism explanatory view showing an embodiment of a speed display device of the present invention.

FIG. 2 is an explanatory view of a mechanism of a display unit in FIG.

FIG. 3 is a schematic explanatory view showing a mechanism of a conventional speed display device.

[Explanation of symbols]

 10 Speed Signal Converter 11 Speedometer 12 Pointer 13 Setting Switch 14 Speed Limit Setting Section 15 Comparison Circuit 16 Motor 17 Rotating Drum 18 Display Window 19 Pattern M Speed Display Device H Display Means K Operating Mechanism

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Office reference number FI technical display location G01P 13/04 C // G01P 1/08 Z 7355-2F

Claims (3)

[Scope of utility model registration request] 1. A speed display device comprising a speedometer for analog-displaying a speed signal from a speed signal converter as an actual speed, wherein a comparison circuit for comparing the actual speed with a preset speed limit is provided with the speed signal. A display mechanism that is connected to the converter, determines the difference A between the speed limit and the actual speed by the comparison circuit, and changes the display means by a motor that rotates positively and negatively according to the positive or negative value of the difference A. A speed display device, wherein the speed display device is arranged in parallel with the speedometer. 2. The display means is formed so as to change the moving direction of the pattern by a motor that rotates in positive and negative directions according to the positive and negative values of the difference A between the speed limit and the actual speed. The speed display device according to claim 1. 3. The display means is formed so as to change the display color by a motor that rotates in the positive and negative directions according to the positive and negative values of the difference A between the speed limit and the actual speed. The speed display device according to 1.