JPH02201698A - Twin counter zero return device - Google Patents

Abstract

PURPOSE:To improve operability by selectively executing zero resetting operation to respective counters according to switching lateral movement in one and the other directions of one zero resetting body. CONSTITUTION:At first, a zero resetting body 19 is pushed in an arrow direction against an elastic part 19a and detached out of a recessing part 21a of a restricting groove 21. Then, when the zero resetting body is laterally moved in the direction of the real line arrow, the zero resetting body 19 is turned with a supporting point pin 20 as a center. An operating link 23 is moved in the real line arrow direction and an operating arm 13 of one counter 2 is turned in the real line arrow direction. Then, the counter 2 is reset to zero. When the zero resetting body 19 is laterally moved in the other direction, another counter 3 can be reset to zero. Thus, the zero resetting operation can be selectively executed to the two counters and the operability can be improved. Thus, erroneous operation can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a zero return device for twin counters used as odometers for vehicles such as automobiles and motorcycles.

[Conventional technology]

Conventionally, this type of twin counter zero return device is disclosed in Japanese Unexamined Patent Publication No. 57-136113, Japanese Utility Model Application No. 61147463, Japanese Utility Model Application No. 62-44361, and Japanese Utility Model Application No. 57-7.
3620, etc. are known.

These conventional structures have two counters arranged in series or parallel on the same axis, and the zero return member of one counter is reset to zero by the pushing action of one shaft-shaped zero return member in the axial direction. In addition, by rotating the zero return body and pushing it in the axial direction at that position, the other counter's zero return member can be operated to return to zero.

[Problem to be solved by the invention]

However, in the conventional device described above, the zero-returning operation of the zero-returning body consists of an operation of pushing it as it is, and an operation of rotating it once and then pushing it at that rotation position. There is a risk of accidentally pressing a place that should have been pressed after moving, or of accidentally turning and pressing a place that should have been pressed.Also, pressing after turning requires two movements, so only need to be operated accordingly. This has disadvantages in that it tends to have a complicated structure, requires a large installation space, and may be subject to restrictions on the arrangement of other instrument components.

[Means to solve the problem]

The purpose of the present invention is to solve these inconveniences.The gist of the present invention is to provide two counters on a frame, and to selectively replace each zero return member of the counter with one return body. The above-mentioned zero-returning body is disposed in a frame marked with "-" so as to be able to be switched and moved horizontally, and one counter can be returned to zero by horizontally moving the zero-returning body in one direction. A twin counter return system characterized in that it is provided with an operation mechanism that rotates a member to return to zero and also rotates the zero return member of the other counter to return to zero by lateral movement of the return body in the other direction. It's in the zero device.

[Operation] When the zero body is moved laterally in one direction, the operation mechanism causes -・
The zero return member of one counter rotates back to zero, and when the zero return member is moved laterally in the other direction, the zero return member of the other counter is rotated back to zero by the operating mechanism, and one of the one zero return bodies, By lateral switching in the other direction, each counter is selectively reset to zero.

〔Example〕

1 to 6 show an embodiment in which the present invention is applied to an automobile odometer. FIGS. 1 to 4 show the first embodiment, FIG. 5 shows the second embodiment, and FIG. This is a third example.

In the first embodiment shown in FIGS. 1 to 4, 1 is an instrument frame, and the instrument frame includes two counters 2 and 4.
3 are arranged in parallel, and these counters 2 and 3
The support shafts 6 and 7 are arranged on the frames 4 and 5, and the support shafts 6 and
Four number wheels 2a and 3a are rotatably arranged on each of the number wheels 2a and 3a, and heart cams 2b and 3a are attached to the sides of each number ring 2a and 3a.
3b are integrally formed, and each counter 2.
Input gears 2c and 3c are disposed on the support shafts 6 and 7 of No. 3 to face the number wheels 2a and 3a of the lowest digit, and the input gears 2c and 3
A drive gear 8 is simultaneously meshed with the drive gear 8, and the rotation of the wheels of the automobile is transmitted to the drive gear 8.

9.1 (L is a zero return member, and holding shafts 11.1 are arranged in parallel to the support shafts 6.7 on each frame 4.5.
2 is rotatably attached, and zero return members 9 and 10 are fixedly attached to the holding shaft 11 and the hill, respectively, and each return member 9 and 10 has a return member corresponding to the heart cams 2b and 3b, respectively. Zero levers 9a and 10a are formed, and pinions 9b and 10b are located between the number wheels 2a and 3a to rotate the number wheel of the upper digit by 1/10 with one rotation of the number wheel of the lower digit. and pinions 9c and 1 that directly transmit the rotation of the manual gears 2c and 3c to the number wheel of the lowest digit.
0c is set.

Further, an actuating arm 13 is fixed to the protruding end of one of the holding shafts 11, and a spring hook 1J plate 14 is fixed to the end of the holding shaft 11. Return the zero member 9 to the normal position and remove the pinions 9b and 9c.
i: J: A coil spring 15 for rotating and connecting each number ring 2a is suspended, and an operating arm 16 is also fixed to the protruding end of the other holding shaft n, and the spring hook is attached to the plate 14.
and a spring hanging plate (not shown) and a coil spring (not shown) similar to the coil spring 15, which are configured to return the zero return member 10 to the normal position, and thus each operating arm 13, 16 When the respective holding shafts 11 and hills are rotated, the zero return members 9 and 10 are rotated to return to zero against the coil spring 15 and coil spring (not shown), and the pinions 9 b 10 b -9c 10
c and the number wheels 2a and 3a are separated from each other, and the respective zero return levers 9a and 10a engage with the corresponding heart cams 2b and 3b, and by this zero return operation, each number wheel 2a
・3a rotates back to zero and sets the number displayed on number wheels 2a and 3a to 0.
As a result, counters 2 and 3 are returned to zero.

17 is an operating mechanism, in this case the frames 4 and 5
A support frame member is attached to the support frame m, and the middle part of the return body 19, which has two round shaft-shaped parts and a square plate-shaped lower part, is pivotally attached to the support frame m by a fulcrum pin 20. Two approximately T-shaped restraint grooves are formed in the upper plate part IEa, and the upper end of the fulcrum pin 20 is inserted into the restraint groove 21, so that the return body 19 is always placed between the return body 19 and the support frame 18. is the recess 21 located at the center of the restraint groove 21
A torsion spring 22 is installed opposite to a], and the fulcrum of the zero return body 19 is B20, J:, f, j111
1, the wall thickness is partially reduced and an elastic part 19a is formed; 2, the elastic part 19a causes a return body 196; Restriction groove 2
1. recess 2], set to fit inside a (+,
Zero body 19
c,'> ノ+゛Right side 17・'-knee,
Push the Roam 13 and the other operating arm 16 with a stone iF
%','<25・Central axis 4°1 by pressing pin γ・n
It is configured as follows.

Since this first embodiment has the above-mentioned configuration, in the state shown in FIG.
Push it in the direction of the arrow in the figure to remove it from the inside of the four parts 21a of the restraint groove 21, and in this state move the return body 19 in one direction, for example in the direction of the solid arrow IJ, and the return body 19 will move around the fulcrum pin 20. rotates, the operating link blade moves in the direction of the solid line arrow, the operating arm 13 of one counter 2 rotates in the direction of the solid line arrow 111, its holding shaft 11 rotates, and the return member 9 moves as shown in FIG. One counter 2 is returned to zero in the direction of the solid line arrow j7, and when this zero return body 19 is released, the zero return body 19 is rotated back by the torsion spring 22, and the zero return body 19 is returned to zero. is fitted into the recess 21a of the restraining groove 21 by the action of the elastic part 19a, and its movement is restrained, and the holding shaft 11 is also rotated back by the coil spring 15 2, and the zero return member 9
is returned to its normal position, and the return body 19 is first pushed into the concave portion 21a of the restraining groove 21 against the elastic portion J,9a.
Remove it from the inside, and while keeping it as it is, move the return body 19 in the other direction.
That is, when it is laterally moved in the direction of the broken line arrow in FIG. The arm 16 rotates in the direction of the broken line arrow, its holding shaft 12 rotates, and the zero return member 10 rotates back to zero in the direction of the broken line arrow in FIG. 2, and the other counter 3 is returned to zero. When the zero return body 19 is released, the zero return body 19 is rotated back by the torsion spring 22, and the movement of the zero return body 19 is restricted by the thick fit in the recess 21a of the restraint groove 21, and the holding axis ratio is also The return rotation is performed by a coil spring similar to the coil spring 15, and the return member 10 returns to the normal position, and by a switching lateral movement operation of one return member 19 in either one direction or the other direction. Two counters 2・
3 can be selectively returned to zero, improving operability and preventing erroneous operations. .

At this time, since the movement of the zero return body 19 is normally restrained by the recess 21a of the restraining groove 21, erroneous operation of each of the counters 2 and 3 is thereby prevented.

The second embodiment shown in FIG. 5 is different from the first embodiment in the arrangement of the counters 2 and 3. In this case, the counters 2 and 3 are arranged side by side, and the counters 2 and 3 are arranged side by side. An operating mechanism 17 similar to that of the first embodiment is provided at the same position.

The third embodiment shown in FIG. 6 shows a different structure of the operating mechanism 17, in which pressing parts 29 and 30 are formed on both left and right sides of the lower part of the return body 19 instead of the operating link of the first embodiment. death,
A pressure receiving pin 81 is provided for each of the operating arms 13 and 16.
・32 is provided protrudingly, and the pressing parts 29 and 30 and the pressure receiving pins 31 and 3
2, the holding shaft 11 and the hill can be selectively pushed during the zero return operation, respectively.

The second and third embodiments also provide the same effects as the first embodiment.

Note that the operating mechanism 17 is not limited to the one shown in the above embodiment.

〔Effect of the invention〕

As described above, the present invention allows two counters to be selectively returned to zero by a switching lateral movement operation of one zero return body in either one direction or the other direction, thereby improving operability and preventing erroneous operations. be able to.

Therefore, the intended purpose can be fully achieved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a plan view of the first embodiment, FIG. 2 is a partial side sectional view thereof, FIG. 3 is a partial side view thereof, and FIG. 4 is a partial side view thereof. Side view, Figure 5 is the second
FIG. 6 is a partial plan view of the embodiment, and FIG. 6 is a partial side view of the third embodiment. 2.3...Counter, 4.5...Frame, 9.1(
1... Zero return member, 17... Operating mechanism, 19 January 31, 1999

Claims (1)

[Claims] Two counters are arranged on a frame, and each zero return member of the counter can be selectively returned to zero by one zero return body, and the zero return body can be switched horizontally on the frame. The counter is arranged so that it can be moved, and when the zero return member is moved horizontally in one direction, the zero return member of one counter is rotated back to zero, and when the zero return member is moved laterally in the other direction, the other zero return member is rotated to return to zero. 1. A zero return device for twin counters, comprising an operation mechanism for rotating a zero return member of a counter back to zero.