JPH0129660Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a travel distance warning device, and particularly to a travel distance warning device that issues an alarm when a vehicle travels a predetermined distance or more.

Regarding this type of mileage warning device, the inventors of this invention proposed application No. 56-35891. As shown in Figures 1 to 4, this
Rotational drive shafts 3, 4, and 5 are arranged in the instrument frame 2 of the totalizer 1, and a gear 3a on the shaft 3 and a gear 4a on the shaft 4 are arranged.
The gear 4a of the shaft 4 and the gear 5a of the shaft 5 are also engaged. Further, two support shafts 6 and 8 are provided in parallel to each other on the container frame 2, and one of the support shafts 6 has six integration wheels 7-1, 7-2,
7-3, 7-4, 7-5, and 7-6 are rotatably supported. Six pinions 9 for digit feeding are pivotally supported on the other support shaft 8 so as to cooperate with these integrating wheels 7-1 to 7-6. These pinions 9 are interposed between each of the above-mentioned integration wheels, and are connected to the shift pawl group 1 formed on the opposing side surfaces.
2 and two teeth 13 for shifting. A rotation transmission wheel 10 and a drive gear 11 are interposed between the first integration wheel 7-1 and the shaft 5, and the shafts 3, 4, 5 rotate as the vehicle travels.
The totalizing wheels 7-1 to 7-6 are sequentially rotated by the rotational force of 1 to display the total distance traveled.

Among the pinions 9 described above, as shown in FIG. 3, the boss portion 14 of the pinion 9' (the fifth pinion from the right in FIG. 1) corresponding to the fifth integration wheel 7-5 protrudes. A strip 15 is formed. On the other hand, a bracket 16 is attached to the container frame 2, and one end of a leaf spring 17 is fixed to this bracket 16. A protruding portion 19 is provided on the rising portion 18 at the other end of the leaf spring 17, and the tip of the protruding portion 19 and the aforementioned boss portion 14 are constantly engaged by the biasing action of the leaf spring 17. I'm starting to do that. Also, the bracket 16 has a micro switch 2.
0 is fixed, and the operating piece 20a of the micro switch 20 is arranged so as to be pressed against the back surface of the rising portion 18 of the leaf spring 17. The micro switch 22 is connected to the alarm lamp 21, the release switch 22, the ignition switch 23, and the battery 24.

For example, when the vehicle has traveled 30,000 miles, the fifth digit totalizer 7-5 rotates to a position that displays 30,000 miles, and along with this, the fifth digit pinion 9' The protrusion 15 also rotates and the leaf spring 17
Push the protrusion 19 of the button. In other words, pinion 9' is designed to rotate 90 degrees every 10,000 miles, so after 30,000 miles, pinion 9' will rotate.
The boss part 1 rotates 270 degrees, as shown in Figure 4.
The tip of a protrusion 19 provided on the rising portion 18 of the leaf spring 17 is pressed by the protrusion 15 of No. 4. As a result, the protrusion 19 shifts to the right in FIG. 4 and presses the actuation piece 20a of the microswitch 20. Therefore, the micro switch 20 is turned on, the warning lamp 21 is turned on, it is detected that the vehicle has traveled 30,000 miles, and a warning is issued.

However, in such a conventional mileage alarm device, the protrusion 19 is pushed by the pinion 9', and the micro switch 20 is turned on by the operation of the protrusion 19. ,
When operating this microswitch, a fairly large drive torque is required, and in a motor-driven odometer, a high-power motor must be used, and the pinion 9' normally rotates once after 40,000 miles. Therefore, if you ignored the warning issued at 30,000 miles and continued driving, there was a problem that the car would return to its initial state at 40,000 miles.

The present invention was developed by focusing on these conventional problems, and uses an optical sensor and a switching gear to operate effectively using a small and low-output motor. It is an object of the present invention to provide an alarm device for a totalizer that can provide a margin until it returns to the initial state even if it continues.

The present invention will be explained in detail below based on the embodiment shown in FIGS. 5 to 8. In this embodiment,
Structural parts that are the same as those explained in the conventional example are given the reference numerals cited in the conventional example, and explanations of the same structural parts will be omitted.

That is, 30 is a wide pinion that is rotatably supported on the support shaft 8 together with the pinion 9;
0 is located between the integration wheels 7-4 and 7-5. Reference numeral 31 denotes a bushing for preventing the axial movement of the integration wheel supported by the support shaft 6, and 32 indicates the integration wheel 7-.
4 and 7-5, a support shaft 6 is inserted into one end of the bearing plate 32, and a support shaft 6 is inserted into the other end of the bearing plate 32. A shaft 33 is press-fitted therein. Reference numeral 34 denotes a switching gear that is pivotally supported by the shaft 33, and this switching gear 34 is made of a transparent material and is meshed with 20 teeth formed on the integrating wheel 7-5. However, the switching gear 34
A fan-shaped light shielding plate 35 is attached to a part of the side surface. Reference numerals 36 and 37 are a light emitter and a light sensor that are arranged opposite to each other with the light shielding plate 35 in between, and the light emitter 36 and the light receiver 37 are fixed to the container frame 2. Note that 38 is an optical switch connected to the photoreceptor 37, 39 is a dial of the instrument, and 40 is a display window provided on the dial 39.

The above is the structure of this embodiment. Next, to describe its operation, the pinions 9, 30 and the totalizing wheels 7-1 to 7-6 operate in the same manner as a conventional totalizing meter. However, when the digit of the totalization display advances and the totalization wheel 7-5 of the ten thousand digit advances, the switching gear 3 that is meshed with this totalization wheel 7-5 moves forward.
4 is rotated in the direction of the arrow. Display window 4 of dial plate 39
The character "0" on the 0 and the totalizing car 7-5,
When "1" and "2" are displayed, that is, until the vehicle has traveled 20,000 miles, the light shielding plate 35 provided on the switching gear 34 is placed between the light emitter 36 and the optical sensor 37. The light sensor 37 does not detect light because the light sensor 37 is located at
When is displayed, the light shielding plate 35 is removed from between the light emitter 36 and the light sensor 37, so the light sensor 37 detects the light from the light emitter 36, and the light switch 38 is activated and the 30,000 mile The driving warning lamp 21 is turned on.

The embodiment shown in FIG. 8 shows another embodiment of the switching gear, in which the switching gear 41 is formed of a light-shielding plate 35, and has a substantially fan-shaped through hole 42 in a part of the side surface. It has the same function as the switching gear 34 described above.

Although the above embodiment is configured to issue a warning when the vehicle has traveled 30,000 miles, it is also possible to issue a warning when the vehicle has traveled other miles by changing the shape of the transparent portion provided on the switching gear. .

As described above, in the present invention, two support shafts 6 and 8 are provided in parallel to the container frame 2, a plurality of integrating wheels 7-1 to 7-6 are arranged on one of the support shafts 6, and the other supporting shaft 8
, the digit feed pawl group 1 of both adjacent counting wheels
In the totalizing meter that pivotally supports a plurality of pinions 9 that engage with the two teeth 13 for digit feeding and perform digit feeding, the digit feeding pawl group 1 of any one of the digitizing wheels is
2, a gear 34 that rotates by the rotation thereof and has a transparent portion 42 is pivotally supported on the container frame 2;
This gear 34 is sandwiched and a light emitting member 36 is placed on one side of the gear 34.
A light-receiving member 37 that receives light transmitted from the light-emitting member 36 through the light-transmitting portion 42 and emits a signal is attached to the container frame 2 on the other side, and
This is an alarm device for a totalizer, which is characterized in that the alarm 21 issues an alarm due to a change in the rotational position of the alarm 21.According to this, the light switch for issuing an alarm is operated without contact Since the operating load of this switch is zero, the motor for driving the totalizer can be small, which results in a reduction in motor installation space and motor cost. By appropriately setting the number of teeth of the gear 34, it is possible to freely set the alarm value and the margin value until returning to the initial state after the alarm.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional totalizer, Fig. 2 is a sectional view taken along the - line, Fig. 3 is a perspective view of the same cam-equipped pinion, Fig. 4 is an explanatory diagram after traveling 30,000 miles, Fig. 5 is a front view of the totalizer according to the present invention, Fig. 6 is a cutaway plan view of its main parts, Fig. 7 is a sectional view taken along line A-A, and Fig. 8 is a switch showing another embodiment of the present invention. FIG. 30...Wide pinion, 31...Butsuyu, 3
2...Bearing plate, 33...Shaft, 34,
41... Switching gear, 35... Light shielding plate, 3
6... Light emitter, 37... Light sensor, 38... Light switch, 39... Dial board, 40... Display window, 42
...through hole.

Claims (1)

[Scope of utility model registration request] Two support shafts 6 and 8 are provided in parallel to the container frame 2, and a plurality of integration wheels 7-1 to 7-6 are mounted on one of the support shafts 6.
A plurality of pinions 9 are arranged on the other support shaft 8 to perform digit feeding by meshing with the digit feeding pawl group 12 and the two digit feeding teeth 13 of both integrating wheels arranged adjacent to each other. In the totalizer, a gear 34 that engages with the shift pawl group 12 of one of the totalizing wheels, rotates by the rotation thereof, and has a transparent portion 42 is pivotally supported on the instrument frame 2. A light-emitting member 36 is mounted on one side of the gear 34, and a light-receiving member 37 that receives light transmitted through the light-transmitting portion 42 from the light-emitting member 36 and emits a signal on the other side thereof is attached to the container frame 2. . An alarm device for a totalizer, characterized in that the alarm device 21 issues an alarm in response to a change in the rotational position of the transparent portion 42.