JP3194690B2 - Tachograph equipment - Google Patents

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 instantaneous speed and operation 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 an instrument for continuously and automatically recording an operation state, and is provided with a speedometer, a clock mechanism, and a mechanism for automatically recording on a recording sheet. I have. Hereinafter, a configuration example of the conventional tachograph device 1 will be described. As shown in FIG. 7, a speedometer 3, a clock 4, a speed warning indicator 5, a speed indicator 6 and a mileage meter 7 are provided on a front panel 2 of one case. And the like are provided so as to be visible, and are further provided with a driver change recording knob 8 and a wake-up timer operating knob 9 which are operable.

An example of the internal configuration and recording mode of the tachograph apparatus 1 is described in "Automotive Technology Handbook (Design Edition)".
[Issuer; Japan Society of Automotive Engineers] 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 used.
There is a tachograph device 1A having a configuration in which the tachograph device and the speed indicator SI are separated. That is, the transmission 10 functions as a speed sensor of an automobile, and its internal configuration is such that the flexible cable 1 is connected to the worm 12 of the output shaft 11.
The worm gear 14 attached to one end of the gear 3 is meshed. 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 obtained by detecting the traveling speed. The other end of the flexible cable 13 is connected to a distributor 16
And the distributor 16 includes a plurality of gears provided therein,
The cables 18 and 19 fixed to each gear are configured to distribute the rotation speed.

[0005] The instrument panel 20 includes:
A display case 21 containing the speedometer S and a speed display case 34 containing the speed indicator SI are attached, and one end of the cable 18 is connected to the speedometer S to drive the speed indicator 32. Further, the speed indicator SI is, for example, 20, 40, 60 km /
The display lamp 34a is turned on every h, and the speedometer S displays the speed by swinging the speed indicator 32 in accordance with the speed.

[0006] A recorder M is provided in the passenger compartment.
The recorder M is stored 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. A recording unit Ma and a speed detecting unit Mb are provided in the recording case 22, and are mechanically connected to each other. Then, the speed detection unit Mb
Converts the rotational speed into an electric signal, and transmits the electric signal to the speed indicator light case 34 via the harness 53, in other words, to the speed indicator SI including three speed indicator lights 34a.

[0007]

Since the tachograph apparatus 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 necessary to incorporate a large number of members inevitably. In addition, there is a problem that the internal structure is complicated, the assembling work is troublesome, and the tachograph device 1 becomes large. Further, since the tachograph device 1A shown in FIGS. 8 and 9 incorporates a recording unit and a speed detection unit in a 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 mounted at a position where the driver can easily look back, there is a problem that the recorder becomes large and the mounting position is limited when the speed indicator is mounted in the vehicle interior. SUMMARY OF THE INVENTION An object of the present invention is to provide a tachograph device configured so that a recorder can be reduced in size and space can be saved, and the degree of freedom of a mounting position can be improved.

[0008]

SUMMARY OF THE INVENTION The object of the present invention is to provide a speed sensor for detecting a rotation speed corresponding to a running speed of a vehicle, and a distributor for distributing and transmitting the rotation speed detected by the speed sensor. , A recorder for recording the rotational speed transmitted from the distributor, a speedometer for displaying the rotational speed transmitted from the distributor, and a speed for generating a plurality of electric signals corresponding to the rotational speed transmitted from the distributor. In a tachograph apparatus including a detection unit and a speed indicator provided with a plurality of light emitting units that light up 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 apparatus of the present invention, since the speed detector is separated from the recorder, the recorder is limited to the recording operation only. In addition to this, the degree of freedom of the mounting position can be improved. Therefore, the rotation speed detected by the speed sensor is transmitted to the recorder, the speedometer, and the speed detector by the distributor. And
The operation state is recorded by a recorder and displayed by a speedometer. In addition, the rotation speed is generated by an electric signal corresponding to the rotation speed that changes from moment to moment by the speed detection unit and supplied to the speed indicator. Therefore, the speed indicator drives the plurality of light emitting units based on the electric signal and displays the light so that the driver can see it.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tachograph apparatus to which the present invention is applied will be described below with reference to FIGS.
FIG. 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 abbreviated as instrument panel).
FIG. 4 is a sectional view showing a mounting structure of a speed indicator, FIG. 5 is a perspective view showing an internal configuration of a recorder, and FIG. 6 is a perspective view showing an internal configuration of a distributor. . In FIGS. 1 to 5, members having the same functions as in the conventional example are denoted by the same reference numerals, and 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 is provided with a speed sensor, and its internal structure is an output shaft 11.
A worm gear 14 attached to one end of a flexible cable 13 is meshed with the worm 12. The other end of the flexible cable 13 is connected to a distributor 16, which distributes the rotation speed by the action of a gear provided inside, and the flexible cables 18, 19, 6.
1 is provided. Further, a speed detecting 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.

A display case 21 containing a speedometer S and a speed display case 34 containing a speed indicator SI are attached to the instrument panel 20, and the end of the cable 18 is attached to the speedometer S provided on the display case 21. Are driven to drive. The speedometer S performs speed display by swinging the speed indicator 32 according to the speed.
A recorder M is attached to a desired position in the vehicle interior. The recorder M is housed in a lockable rectangular parallelepiped recording case 22.

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

The speed indicator SI is constituted by providing three display means 34a in a speed indicator light case 34. For example, the display means 34a is moved from the left side to the right at every 20, 40, 60 km / h. It is selectively lit. The speed indicator SI is disposed on the instrument panel 20 and near the speedometer S so as to be visible as shown in FIG. 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. Accordingly, the speed indicator SI is reduced in size, and is mounted in a small space at a position on the instrument panel 20 where it is easy to look back.

As shown in FIG. 4, the speed indicator SI is provided with a concave storage portion 71 provided on the back side of the instrument panel 20.
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 via the transmission hole 73.

Next, the configuration of the tachograph device T will be described with reference to FIGS. The recording case 22
It comprises a case body 22a and a lid 22b. The lid 22b is provided with a lock 35, and is locked by a key (not shown). The case 22 includes a magnet unit 36 and a recording unit 37. One end of the cable 19 provided in the distributor 16 is connected to a drive shaft 38 constituting a magnet part 36, and a disk-shaped magnet 39 is fixed to the drive shaft 38. A guide plate 40 is provided around the magnet 39, and 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 meshing with a rack gear 43 constituting the recording section 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. A recording needle 46 is provided. The recording needle 46 is interlocked with the rotation of the drive shaft 38 by the worm gears 47 to 50 and the cam 51. The recording paper 54 is arranged so as to be in 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.
Gears 18a, 19a, which mesh with the intermediate gear 17,
61a. A flexible cable 18 for transmitting the rotational speed to the speedometer is fixed to the gear 18a, a flexible cable 19 for transmitting the rotational speed to the recorder is provided for the gear 19a, and the rotational speed is supplied to the speed detecting unit 62 for the gear 61a. Is fixed.

In the distributor 16, when a 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 rotate. Therefore, the flexible cables 18, 19, and 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 in the horizontal direction with the rotation of the flexible cable 61, a movable contact that reciprocates integrally with the rack gear,
A switch comprising a plurality of fixed contacts intermittently corresponding to the position of the movable contact. A harness 63 is connected to each fixed contact, and supplies 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 speed of the vehicle 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.
The signal is transmitted to the next-stage system via 1.

The recorder M records the speed transmitted through the flexible cable 19 on the recording paper 54, and the speedometer S
Causes the speed indicator 32 to swing in accordance with the speed transmitted through the flexible cable 18, and displays the speed instantaneously. Further, the speed detector 62 detects an electric signal obtained by detecting the speed in a plurality of stages, for example, every 20, 40, 60 km, via a harness 63 to a speed indicator S.
I, and turns on the display means 34a so that the display means 34a can be visually checked at an instantaneous 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 configuration is simplified, so that the size can be reduced, the space can be saved, and the degree of freedom of the mounting position can be improved. Is improved. The speed indicator SI
Is reduced in size, and the mounting position of the speed detection unit 62 can be moved as needed, so that space saving and improvement in assemblability can be achieved.

[0024]

As described above, in the tachograph device according to the present invention, the speed sensor detects the rotation speed corresponding to the running speed of the vehicle, and the distributor separates the recorder from the speedometer and the recorder. The driving condition is transmitted to the speed detecting unit, the driving state is recorded by the recorder, displayed by the speed meter, and a plurality of display means provided on the speed indicator are driven based on the electric signal obtained from the speed detecting unit. . Therefore, since the recorder is limited to only the recording operation, the number of members incorporated in the case is small, the recorder can be reduced in size, and the degree of freedom of the mounting position is improved. In addition, since the speed indicator is also packaged, the speed indicator can be reduced in size, and various effects such as easy setting of the mounting position on the instrument panel can be obtained.

[Brief description of the 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.

FIG. 4 is a sectional view of a main part showing a configuration of a speed indicator in FIG. 3;

FIG. 5 is a perspective view showing the 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.

FIG. 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 Worm 13a, 18a, 19a, 61a Gear 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 detector 63 Harness

Claims (1)

(57) [Claims] 1. A speed sensor for converting a traveling speed of a vehicle into a rotational speed and detecting the rotational speed, a distributor for distributing and transmitting the rotational speed detected by the speed sensor, and a rotational speed transmitted from the distributor. A speed meter that displays the rotational speed transmitted from the distributor, a speed detector that generates a plurality of electrical signals corresponding to the rotational speed transmitted from the distributor, and the speed detector A speed indicator provided with a plurality of light emitting means for lighting in response to an electric signal transmitted from the unit, wherein the speed detecting unit is separated from the recorder. .