JPH0363787A - counter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an outer pinion type counter used in a travel distance meter, hour meter counter, etc. of an automobile.

[Prior art] -a This type of counter has two parts between the left and right side plates of the frame.
The book's spindles are installed horizontally in parallel, and one spindle supports a plurality of display wheels at predetermined intervals so that they can freely rotate, and the other spindle has a display wheel placed between each display wheel for digit feeding. A pinion is provided, and long teeth and short teeth are formed alternately on this pinion, and the long teeth and short teeth mesh with continuous teeth formed on the entire periphery of the lower digit side of the upper folding display wheel, and The teeth mesh with intermittent teeth formed, for example, at one location on the upper digit side periphery of the lower digit side display wheel. When the rotational force is appropriately transmitted to the lowest display wheel by the rotation transmission means, each display wheel is sequentially rotated from the lower digit side to the higher digit side via the shift pinion. It has become. In addition, when assembling, one indicator ring is assembled to one support shaft, and then one pinion is assembled to the other support shaft, and by assembling the indicator ring and pinion alternately in this way, mutual teeth can be adjusted. It was meshed properly.

[Problems to be Solved by the Invention] The above-mentioned prior art requires a support shaft for freely supporting the pinion group, and requires work to horizontally install this support shaft on the frame body. Since the display wheel and the display wheel group are assembled to support shafts installed separately horizontally on the frame, it is difficult to properly mesh the teeth of the pinion and the teeth of the display wheel, which is a time-consuming process. .

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a counter which can reduce the number of pinion support shafts installed horizontally on the frame and which can also provide a pinion at an appropriate position relative to the display wheel.

[Means for Solving the Problems] The present invention provides a plurality of display wheels that are reversibly provided on a support shaft installed horizontally in a frame, and a holding plate is provided between each display wheel.
Each holding plate has a main holding part through which the spindle is inserted, and this main holding part has a pinion holding part located outwardly from the outer circumferential surface of the display ring and having a space between the main holding part and the main holding part in the axial direction. A pinion shaft is provided on the pinion holding portion to protrude along the axial direction of the support shaft, and a carry pinion is provided on the pinion shaft.

[Function] With the above configuration, the counter mechanism can be easily assembled by sequentially assembling the pinion together with the retaining plate between each indicator wheel.

[Embodiment] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

1 to 4 show a first embodiment of the present invention, and as shown in the figures, a support shaft 3 is horizontally installed between the left and right measurement plates 2 of the frame 1, and this support shaft 3 has an A plurality of display wheels 4 on which numbers "" are displayed are rotatably supported at predetermined intervals, and a holding plate 5 is provided between each display ring 4, and as will be described later, a main holding part 6 of this holding plate 5 is provided. In addition, a pinion 9 is provided via a pinion shaft 8 to a pinion holding portion 7 located outside and connected to the display wheel 4.

The display wheel 4 has continuous teeth 10 formed on the entire periphery of the open side of the lower digit, and one intermittent tooth 11 formed on the side surface on the upper digit side, and a stepped portion 12 is formed on the periphery except for this intermittent tooth 11. . Also, display! l! A cylindrical boss portion 13 is formed at the center of i4, and this boss portion 13 maintains the distance between the display wheels 4.

In addition, a drive gear 14 is provided on the lower digit side of the display wheel 4 of the lowest digit.
are integrally connected, and a holder 15 is located at the upper fold of the display wheel 4 of the highest digit, and this holder 15 is fixed to the support shaft 3.

The holding plate 5 has a disk-shaped main holding part 6 having the same diameter as the display wheel 4, and a shaft hole 16 through which the support shaft 3 is inserted is formed in the center of the main holding part 6. A notch recess 17 for assembling the pinion 9 is formed at the end of the pinion 9I11 of the main holding part 6, and a pair of long throw parts 18 extending in the axial direction of the support shaft 3 are formed at both ends of the notch recess 17. The pinion holding part 7 is formed at the axial end of the long throw part 18 in parallel with the main holding part 6 with a gap 19 therebetween, and the display wheel 4 is connected to the pinion holding part 7.
An opening 20 for tooth engagement between the indicator wheel 4 and the pinion 9 is formed between the continuous portions 18 . Further, a pinion shaft 8 is provided on the pinion holding portion 7 so as to protrude in the axial direction on the main holding portion 6 side. Furthermore, an engagement recess 21 is formed at the edge of the main holding portion 6 to prevent rotation of the holding plate. In this case, the distance 19 between the main holding part 6 and the pinion holding part 7 is
It is set to approximately 1/2 of the width of .

The pinion 9 is formed with alternating long teeth 22 and short teeth 23, and when the pinion 9 is rotatably supported on the pinion shaft 8, the long teeth 22 and the short teeth are formed when the two adjacent display wheels 4 are in the open position. 23 mesh with the continuous teeth 10 of the display ring 4 on the upper digit side, and the long teeth 22 mesh with the intermittent teeth 11 on the display ring 4 on the lower digit side.

As shown in FIG. 4, when the indicator wheel 4 rotates, this pinion 9 is prevented from rotating by the two adjacent long teeth 22 coming into contact with the circumferential surface of the stepped portion 12, and when the indicator wheel 4 rotates once, the pinion 9 is prevented from rotating. When the intermittent tooth 11 reaches the Binioff 9 position, the intermittent tooth 11
By meshing with the long teeth 22, the pinion 9 rotates by a predetermined angle, and the display wheel 4 on the upper digit side is moved and rotated.

When assembling, the pinion 9 is assembled to the pinion shaft 8 of the holding plate 5, and the display ring 4 is brought into contact with the side surface of the main holding part 6 on the upper digit side, and the continuous teeth 10 and the long teeth 22. The short teeth 23 are properly engaged, and in this set state, the boss portion 13 of the indicator wheel 4 and the shaft hole 6 of the retaining plate 5 are inserted into the spindle 3, and then assembled in the same set state one after another to open the opening. The two continuous teeth 10 of the pinion 9 are brought into contact with the circumferential surface of the stepped portion 12 of the indicator wheel 4 via the pinion 20. In this case, the spindle 3
After assembling the indicator wheel 4, the holding plate 5 with the pinion 9 set thereon may be assembled, and then the indicator wheel 4 may be assembled in this order. Note that each holding plate 5 is fixed to prevent rotation by engaging each engagement recess 21 with a shaft 24 fixed to the frame 1 or an end of the frame.

In this way, in the above embodiment, a holding plate 5 is provided between each indicator wheel 4, and this holding plate 5 holds the main holding part 6, which the indicator wheel 4 contacts, and the pinion 9 at a position outside the indicator wheel 4. Since it has the pinion holding portion 7, the number of support shafts for supporting the pinion group as in the conventional case can be reduced, and there is no need to fix this support shaft to the frame. Also, when assembling the retaining plate 5, the pinion 9 is attached to this retaining plate 5 as a standard product.
Since the long teeth 22. of the pinion 9 can be held and the display va4 can be brought into contact with the holding plate 5 in an appropriate state relative to the pinion 9. Short teeth 23 and continuous teeth 101 of display ring 4
The intermittent teeth 11 can be easily engaged with each other in a proper state. This eliminates the difficulty in assembling the pinion and the display wheel on separate support shafts and properly meshing the teeth as in the past.

5 to 7 show a second embodiment of the present invention. In this example, the same parts as in the first embodiment are given the same reference numerals and explanations of the same parts are omitted. In this example, the main part of each retaining plate 5A is Holding part 6
A cylindrical portion 25 through which the support shaft 3 is inserted is integrally provided in the center of A and protrudes in the axial direction, and this cylindrical portion 25 is connected to the boss portion 1 of the display wheel 4.
This makes it possible to assemble the indicator wheel 4 to the retainer plate 5A by inserting the boss portion 13 into the cylindrical portion 25, and ensures proper thrust of the indicator wheel 4 for each indicator Va4. I'm trying to make it happen. Also,
A T-shaped flange-shaped annular peripheral wall part 26 that can block light is integrally formed on the periphery of the main holding part 6 of each holding plate 5A, and a light-shielding L-shaped flange-shaped annular peripheral wall part 27 is formed on the periphery of the pinion holding lip 7. are integrally formed to give the holding plate 5A a light shielding function.

By assembling in the same manner as in the first embodiment, the display ring 4 is placed in a state where the end of the cylindrical portion 25 of the holding plate 5A is in contact with the side surface of the adjacent holding plate 5A, as shown in FIG. thrust is ensured, and the display wheel 4 can be rotationally supported well. Further, the annular peripheral wall portion 26 is flush with each indicator wheel 4 in the open position and covers the gap between each indicator wheel 4, and the annular peripheral wall portion 27 covers the pinion 9, so that the display 1! The illumination light beam from a light source (not shown) provided below i4 is blocked by the annular peripheral wall portion 26, thereby eliminating the problem of the conventional illumination light beam being visible through the display ring 4. Further, each annular peripheral wall portion 26.
27 can prevent the display wheel 4 from being intentionally subtracted.

As described above, in this embodiment, the holding plate 5A is assembled as a standard item, and the cylindrical portion 25 of the retaining plate 5A can hold the indicator wheel 4, and the pinion shaft 8 can hold the pinion 9. It is possible to assemble the pinion 9 in a proper state, and also has the effect of preventing light leakage, ensuring the thrust of the display VA4, and preventing subtractive operation of the display wheel 4.

It should be noted that the present invention is not limited to the above-mentioned embodiment, and various modifications can be made within the scope of the gist of the present invention. By forming and configuring the cylindrical portion 25 of the second embodiment, it may be possible to assemble the indicator wheel 4 and pinion 9 to the holding plate 5B, and as shown in FIG.
In order to provide a light shielding function to C, a light shielding peripheral wall portion 26A may be formed at a location corresponding to the display window of the display board and in the vicinity thereof. Further, as shown in FIG.
In addition, in each embodiment, the directions of the pinion shaft 8 and the cylindrical portion 25 formed on the retaining plate 5 can be freely selected as appropriate, and as shown in FIG. The cylindrical portion 25 may be provided protruding toward the upper digit, or one of the pinion shaft 8° cylindrical portions 25 may be provided on the lower digit and the other portion may be provided protruding toward the upper digit. As shown in FIG.
An elastic claw piece 8A is provided on the pinion shaft 8 @ part which is set upright from the pinion shaft 8, and the pinion 9 is fixed to the pinion shaft 8
It is also possible to prevent the removal after insertion and hold it.
In this case, the pinion 9 can be temporarily fixed and held on the holding plate 5, and the counter R structure including the indicator wheel 4 can be more easily assembled.

[Effects of the Invention] The present invention provides an outer pinion type counter in which a plurality of indicator wheels are reversibly provided on a support shaft installed horizontally in a frame, and a retainer plate is provided between each indicator wheel, and each retainer plate is provided with the The main holding part has a main holding part through which the support shaft is inserted, and a pinion holding part is integrally connected to the main holding part, and is located outward from the outer peripheral surface of the display ring and is spaced apart from the main holding part in the axial direction. A pinion shaft is provided on this pinion holding portion protruding along the axial direction of the support shaft, and a pinion for carrying is provided on this pinion shaft, so that the pinion that is installed horizontally on the frame is The number of supporting shafts can be reduced, and the pinion and indicator wheel can be assembled to provide a counter that can be easily operated.

[Brief explanation of drawings]

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is an overall plan view, FIG. 2 is a cross-sectional plan view of main parts, FIG. 3 is an exploded perspective view, and FIG. 4 is a longitudinal section. The surface measurement diagrams, Figures 5 to 7 show the second embodiment of the present invention, and Figure 5 is a partially cutaway plan view, and Figure 6 is a partially cutaway plan view.
The figure is a cross-sectional plan view, FIG. 7 is an exploded perspective view, FIGS. 8 and 9 are perspective views showing other embodiments of the retaining plate, and FIG. 10 is a cross-section showing an embodiment of a pond with a retaining plate fixing structure. 11 are cross-sectional views showing other embodiments of the pinion shaft and cylindrical structure,
12 and 13 show other embodiments of the retaining plate equipped with a pinion temporary fixing mechanism, FIG. 12 is a perspective view, and FIG.
Figure 3 is a cross-sectional view. ■... Frame 3... Support shaft 4... Display wheels 5.5A, 5B 6... Main holding part 7... Pinion holding part 8... Pinion shaft 9... Pinion 5C...・Holding plate

Claims (1)

[Claims] (1) A plurality of display wheels are freely rotatably provided on a support shaft installed horizontally on the frame, and a holding plate is provided between each display ring, and each holding plate has a main holding part through which the support shaft is inserted. However, a pinion holding part is integrally connected to this main holding part and is located outward from the outer circumferential surface of the display ring and is spaced apart from the main holding part in the axial direction. A counter characterized in that a pinion shaft is provided protruding along the axial direction of the shaft, and a carry pinion is provided on the pinion shaft.