JPH0933280A - Tachograph device - Google Patents

Abstract

(57) Abstract: A conventional tachograph device has a complicated internal structure, is troublesome in assembling work, and becomes large in size, so that a mounting position in a vehicle compartment is limited. A tachograph device according to the present invention converts a traveling speed of a vehicle into a rotation speed and detects the speed sensor.
0, a distributor 16 that distributes and transmits the rotational speed detected by the speed sensor 10, a recorder M that records the rotational speed transmitted from the distributor 16, and a rotational speed transmitted from the distributor 16. Speedometer S to display and distributor 16
A speed indicator 62 for generating a plurality of electric signals corresponding to the rotation speed transmitted from the vehicle, and a speed indicator SI provided with a plurality of light emitting means 34a for lighting corresponding to the electric signals transmitted from the speed detector 62. The speed detector 62 is separated from the recorder M.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tachograph device for displaying and automatically recording operation information such as momentary speed and travel distance of a traveling vehicle.

[0002]

2. Description of the Related Art Generally, a tachograph device mounted on an automobile such as a taxi is a measuring instrument for continuously and automatically recording a running state, and has a speedometer, a clock mechanism, and a mechanism for automatically recording on a recording paper. There is. A configuration example of the conventional tachograph device 1 will be described below. As shown in FIG. 7, a front panel 2 of one case has a speedometer 3, a clock 4, a speed warning indicator lamp 5, a speed indicator 6, and a mileage accumulator 7 as shown in FIG. There is an integrated type in which a driver change recording knob 8 and an alarm timer operating knob 9 are provided so as to be visually observable.

An example of the internal configuration and recording mode of the tachograph device 1 is "Automotive Technology Handbook (Design Edition)".
[Issuer; (Company) Automotive Engineering Association] 1st edition, 2nd printing (19
92.6.15).

On the other hand, unlike the integrated tachograph device 1, as shown in FIGS. 8 and 9, a recorder M and a speedometer S are provided.
There is a tachograph device 1A having a structure in which the speed indicator SI and the speed indicator SI are separated. That is, the transmission 10 acts as a speed sensor of an automobile, and its internal configuration is such that the worm 12 of the output shaft 11 is connected to the flexible cable 1.
The worm gear 14 attached to one end of the gear 3 is meshed with the worm gear 14. Since the rotation speed of the output shaft 11 corresponds to the traveling speed of the automobile, the rotation speed of the flexible cable 13 is the detected traveling speed. The other end of this flexible cable 13 is a distributor 16
And the distributor 16 is connected to a plurality of internal gears,
The rotation speed is distributed by the cables 18 and 19 fixed to each gear.

The instrument panel 20 also includes
A display case 21 accommodating the speedometer S and a speed display case 34 accommodating the speed indicator SI are attached, and one end of the cable 18 is connected to the speedometer S to drive the speed pointer 32. Further, the speed indicator SI is, for example, 20, 40, 60 km /
The indicator lamp 34a is configured to be turned on for each h, and the speedometer S displays the speed by swinging the speed pointer 32 corresponding to the speed.

Further, a recorder M is provided in the passenger compartment,
The recorder M is housed in a lockable rectangular parallelepiped recording case 22. One end of the cable 19 is connected to the recorder M as a signal transmission means for recording. A recording unit Ma and a speed detecting unit Mb are provided in the recording case 22, and the both are mechanically connected. Then, the speed detection unit Mb
Converts the rotation speed into an electric signal and transmits it to the speed indicator lamp case 34 via the harness 53, in other words, to the speed indicator SI having three speed indicator lamps 34a built therein.

[0007]

Since the tachograph device 1 shown in FIG. 7 has a structure in which a recording unit, a speedometer and a speed indicator are housed in one case, it is inevitably necessary to incorporate many members. However, there is a problem in that the internal structure becomes complicated, the assembling work is troublesome, and the tachograph device 1 becomes large in size. Further, since the tachograph device 1A shown in FIGS. 8 and 9 incorporates the recording unit and the velocity detecting unit in the case constituting the recorder M, a large number of parts must be incorporated and the internal structure becomes complicated. Become. And, although there is an advantage that the speed indicator can be attached to a position where the driver can easily look back, there is a problem that the recorder becomes large and the attaching position is limited when the recorder is attached to the passenger compartment. It is an object of the present invention to provide a tachograph device configured so that the recorder can be downsized to save space and the degree of freedom of mounting position can be improved.

[0008]

The above object of the present invention is to provide a speed sensor for detecting a rotation speed corresponding to a traveling speed of a vehicle, and a distributor for distributing and transmitting the rotation speed detected by the speed sensor. , A recorder for recording the rotation speed transmitted from the distributor, a speedometer for displaying the rotation speed transmitted from the distributor, and a speed for generating a plurality of electric signals corresponding to the rotation speed transmitted from the distributor In a tachograph device including a detection unit and a speed indicator provided with a plurality of light emitting means that are turned on in response to an electric signal transmitted from the speed detection unit, the speed detection unit is separated from the recorder. And a tachograph device.

[0009]

According to the tachograph device according to the present invention, since the speed detecting portion is separated from the recorder, the recorder is limited to the recording operation. The degree of freedom of the mounting position can be improved. Therefore, the rotational speed detected by the speed sensor is transmitted to the recorder, the speedometer, and the speed detector by the distributor. And
The operation status is recorded by the recorder and displayed by the speedometer. In addition, the rotation speed is supplied to the speed indicator by an electric signal corresponding to the rotation speed that changes from moment to moment is generated stepwise by the speed detector. Therefore, the speed indicator drives the plurality of light emitting means based on the electric signal and displays the information so that the driver can visually recognize it.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a tachograph device to which the present invention is applied will be described below with reference to FIGS.
1 is a system diagram showing the configuration of the tachograph device, FIG. 2 is an exploded perspective view of each part showing the system of the tachograph device, and FIG. 3 is an instrument panel (hereinafter simply referred to as instrument panel).
4 is a plan view showing the configuration of the main part of FIG. 4, FIG. 4 is a sectional view showing the mounting structure of the speed indicator, FIG. 5 is a perspective view showing the internal configuration of the recorder, and FIG. 6 is a perspective view showing the internal configuration of the distributor. . 1 to 5, members having the same functions as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted.

First, the structure of the tachograph device T will be described. The transmission 10 shown in FIGS. 1 and 2 has a speed sensor added, and the internal structure thereof is the output shaft 11.
The worm gear 14 attached to one end of the flexible cable 13 is meshed with the worm 12. The other end of the flexible cable 13 is connected to the distributor 16, and the distributor 16 distributes the rotation speed by the action of a gear provided inside the flexible cable 18, 19, 6.
1 is configured to be output. A speed detection unit 62 described later is provided separately from the recorder M. The internal configuration of the distributor 16 will be described later with reference to FIG.

The instrument panel 20 is provided with a display case 21 accommodating the speedometer S and a speed display case 34 accommodating the speed indicator SI, and the end of the cable 18 is provided at the display case 21 with the speedometer S. Are connected to drive. The speedometer S swings the speed pointer 32 in accordance with the speed to display the speed.
A recorder M is attached at a desired position in the vehicle compartment, and the recorder M is housed in a lockable rectangular parallelepiped recording case 22.

One end of the cable 19 is connected to the recorder M as a signal transmitting means for recording. As shown in FIGS. 1 and 5, only the recording unit is provided in the recording case 22, and the speed detecting unit described in the conventional example is not provided.
The harness 53 shown in FIGS. 8 and 9 becomes unnecessary.

The speed indicator SI is constructed by providing three display means 34a in the speed indicating lamp case 34, and displays the display means 34a from the left side to the right side every 20, 40, 60 km / h, for example. It is designed to light up selectively. As shown in FIG. 3, the speed indicator SI is provided on the instrument panel 20 and in the vicinity of the speedometer S so as to be visible. In the present embodiment, the display means 34a constituting the speed indicator SI is an LED
(Light emitting element), and the driving means of the display means 34a is constituted by a chip component. Therefore, the speed indicator SI is downsized and can be mounted on the instrument panel 20 at a position where it can be easily viewed in a small space.

As shown in FIG. 4, the speed indicator SI is a concave storage portion 71 provided on the back side of the instrument panel 20.
It is removably attached by a fixing screw 72. In this state, the display means 34a can be viewed from the front side of the instrument panel 20 through the transmission hole 73.

Next, the configuration of the tachograph device T will be described with reference to FIGS. The recording case 22 is
It is composed of a case body 22a and a lid 22b, and the lid 22b is provided with a lock 35, and is locked by a key (not shown). The case 22 includes a magnet portion 36 and a recording portion 37. One end of the cable 19 provided in the distributor 16 is coupled to a drive shaft 38 that constitutes the magnet portion 36, and a disc-shaped magnet 39 is fixed to the drive shaft 38. A guide plate 40 is provided around the magnet 39, a base end of a recording shaft 41 is fixed to the guide plate 40, and a hair spring 42 is attached to the recording shaft 41.

A pinion 44 that meshes with a rack gear 43 that constitutes the recording unit 37 is fixed to the tip of the recording shaft 41, and a speed recording needle 45 is attached to the tip of the rack gear 43, and a distance is provided in parallel with the speed recording needle 45. A recording needle 46 is arranged. The recording needle 46 is adapted to interlock with the rotation of the drive shaft 38 by the worm gears 47 to 50 and the cam 51. Then, the recording paper 54 is arranged so as to come into contact with the recording needle 46, as shown by a two-dot chain line in FIG.

Next, the configuration of the distributor 16 will be described with reference to FIG. The distributor 16 includes a gear 13a fixed to the cable 13 and an intermediate gear 17 meshing with the gear 13a.
And gears 18a, 19a, which mesh with the intermediate gear 17,
61a is provided. The flexible cable 18 for transmitting the rotation speed to the speedometer is fixed to the gear 18a, the flexible cable 19 for transmitting the rotation speed to the recorder is attached to the gear 19a, and the rotation speed to the speed detection unit 62 is attached to the gear 61a. A flexible cable 61 for transmitting the is fixed.

In the distributor 16, when the rotational force is transmitted to the gear 13a via the flexible cable 13, the gear 13a rotates, so that the intermediate gear 17 meshing with the gear 13a and the gears 18a, 19a. , 61a also rotates. Therefore, the flexible cables 18, 19, 61 also rotate, and the rotation output is transmitted to the recorder M, the speedometer S, and the speed detector 62 as shown in FIG.

The rotation detector 62 includes a rack gear that reciprocates laterally as the flexible cable 61 rotates, and a movable contact that reciprocates integrally with the rack gear.
And a switch composed of a plurality of fixed contacts that are intermittently connected according to the position of the movable contact. The harness 63 is connected to each fixed contact point to supply an electric signal corresponding to the speed to the speed indicator SI.

Next, the operation of the tachograph device T will be described. As shown in FIGS. 1 and 2, the vehicle speed detected by the transmission 10 corresponding to the speed sensor is transmitted to the distributor 16 via the flexible cable 13. The distributor 16 distributes the speed by meshing the gears 13a, 17, 18a, 19a, 61a as described with reference to FIG.
1 to be transmitted to the next-stage system.

The recorder M records the speed transmitted through the flexible cable 19 on the recording paper 54, and the speed meter S
Causes the speed indicator 32 to be swung corresponding to the speed transmitted via the flexible cable 18 so as to visually display the speed every moment. Further, the speed detector 62 detects an electric signal obtained by detecting the speed at a plurality of stages, for example, every 20, 40, and 60 km, through the harness 63, the speed indicator S.
I, and the display means 34a is visibly turned on in correspondence with the momentary speed.

According to the tachograph device T, the recorder M
Since only the recording mechanism is provided and the speed detection unit 62 is separated, the internal structure is simplified, so that the size can be reduced, the space can be saved, and the flexibility of the mounting position can be improved. Is improved. Also, the speed indicator SI
Is downsized, and the mounting position of the speed detecting portion 62 can be moved as necessary, so that space saving and improvement in assembling can be achieved.

[0024]

As described above, in the tachograph device according to the present invention, the speed sensor detects the rotational speed corresponding to the traveling speed of the automobile, and the distributor separates the recorder from the recorder, the speedometer, and the recorder. The operation state is transmitted to the speed detection unit, the operation state is recorded by the recorder, is displayed by the speedometer, and a plurality of display means provided on the speed indicator are driven based on the electric signal obtained from the speed detection unit. . Therefore, since the recorder is limited to only the recording function, the number of members to be incorporated in the case is small, the recorder can be downsized, and the degree of freedom of the mounting position is improved. Further, since the speed indicator is also packaged, the speed indicator becomes small, and various effects such as easy setting of the mounting position on the instrument panel can be obtained.

[Brief description of drawings]

FIG. 1 is a system diagram showing an embodiment of a tachograph device of the present invention.

FIG. 2 is an exploded perspective view showing the configuration of the tachograph device in FIG.

FIG. 3 is a plan view of an instrument panel showing a mounting form of a speed indicator.

4 is a cross-sectional view of the main parts showing the configuration of the speed indicator in FIG.

FIG. 5 is a perspective view showing an internal configuration of a recorder.

FIG. 6 is a perspective view showing an internal configuration of a distributor.

FIG. 7 is an external view showing an example of a conventional tachograph device.

FIG. 8 is a system diagram showing another example of a conventional tachograph device.

9 is a perspective view showing the configuration of the conventional tachograph device in FIG.

[Explanation of symbols]

 T Tachograph device S Speedometer SI Speed indicator M Recorder 10 Transmission (speed sensor) 11 Output shaft 12 Worms 13a, 18a, 19a, 61a Gears 13, 18, 19, 61 Flexible cable 14 Worm gear 16 Distributor 17 Intermediate gear 20 Instrument panel 21 Display case 22 Recording case 34 Speed display case 54 Recording paper 62 Speed detection unit 63 Harness

Claims (1)

[Claims] 1. A speed sensor for converting a running speed of a vehicle into a rotation speed and detecting the rotation speed, a distributor for distributing and transmitting the rotation speed detected by the speed sensor, and a rotation speed transmitted from the distributor. A recorder for recording the rotation speed, a speedometer for displaying the rotation speed transmitted from the distributor, a speed detection unit for generating a plurality of electric signals corresponding to the rotation speed transmitted from the distributor, and the speed detection A speed indicator provided with a plurality of light emitting means that are turned on in response to an electric signal transmitted from the unit, wherein the speed detector is separated from the recorder. .