JPH0887633A - Chart paper mounting device for operation recorder - Google Patents

Abstract

PURPOSE: To normally perform recording even when chart paper is curled and deformed by moisture or the like by providing a holding part for protecting the peripheral edge part of chart paper at a tongue-shaped part for chart paper protection at the lower end part of the back. CONSTITUTION: A tongue-shaped part 9 provided on the back of a cover 20 is provided with a holding part 9A for holding the peripheral edge part of chart paper T. When mounting the chart paper T onto an operation recorder, the cover 20 is opened and the chart paper T is set on a back 27 of the cover 20. In that case, however, the peripheral edge part is sandwiched by a gap 9A3 of the holding part 9A provided at the tongue-shaped part 9 of the cover 20, the center hole of the chart paper T is fitted to a projection 28 on the back 27 of the cover and fixed by a press metal fitting, etc., and the cover 20 is closed. Therefore, even when the chart paper T is curled because of humidity or the like and the curled position is set at the tongue-shaped part 9 on the back 27 of the cover by setting the time, its curl is corrected by the holding part 9A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chart paper mounting device for an operation recorder which has a structure for preventing the chart paper from being deformed when the chart paper is set on the operation recorder.

[0002]

2. Description of the Related Art An operation recorder is an instrument for displaying the speed and mileage of a vehicle and recording the speed and mileage on a chart paper over time. The appearance is as shown in FIG. It is common. In the figure, reference numeral 20 is a cover which has a display window for displaying a speedometer, a clock and the like on the front surface, and which houses a mechanism for rotating the chart paper inside.
Further, 30 is a counter cover having a display window of a mileage accumulator, and 40 is a case main body for accommodating recording needles for recording speed, mileage, etc. on a chart paper and a drive mechanism thereof.

A lower side portion of the cover 20 and an upper side portion of the counter cover 30 are connected by a hinge structure 24, and the hinge structure 24 allows the cover 20 to rotate with respect to the case body as shown by an arrow B in the figure. ing. FIG. 3 is a cross-sectional view taken along the line AA ′ of the operation recorder shown in FIG. 2, and as shown in the figure, the first wiring board 11 is mounted in the case body 40, and The wiring board 11 has a built-in drive circuit for driving the recording needles of the operation recorder. In addition, a second wiring board 21 is provided in the cover 20.
Is attached to the second wiring board 21. A clock mechanism for rotating the chart paper is incorporated in the second wiring board 21.

A flexible wiring board 13 is connected between the first wiring board 11 and the second wiring board 21 to transmit electric power and information. The first wiring board 11 side of the flexible wiring board 13 is bent in the case body 40, and the spring holder 14 is attached to the bent portion 13a. The spring holder 14 is attached with the other end of the spring 15 whose one end is fixed to the first wiring board 11.
The flexible wiring board 13 is biased inside the case body 40. The tip of the flexible wiring board 13 on the first wiring board 11 side is electrically connected to the circuit of the first wiring board 11 by the connector 16.

On the other hand, the flexible wiring board 13 on the second wiring board 21 side, which extends from the case body 40 to the cover 20 side through the communication passage 50, has its tip electrically connected to the second wiring board 21 by the connector 26. , And the vicinity of its tip is bent once, and a guide 22 for guiding the flexible wiring board 13 is engaged with the bent portion 13b.

Further, as shown in FIG. 4, the chart paper is attached to and detached from the back surface 27 by tilting the cover 20 forward to expose the back surface 27 from the case body 40. Since the cover 20 is tilted toward you, the flexible wiring board 13 is pulled by the cover 20, and the spring 15 of the first wiring board 11 is in a stretched state. In this way, the required length of the flexible wiring board 13 is changed by opening and closing the cover 20, so that the spring 1
5, the flexible wiring board 13 is placed in a tensioned state to prevent troubles due to entanglement with other places.

A cover 20 for attaching the chart paper is also provided.
As shown in detail in FIG. 5, a cylindrical projection 28 is provided on the back surface 27 of the center of the back surface 27, and a hole for chart paper is fitted into this projection 28, and a pressing metal fitting (not shown) is used from above. By fixing, the chart paper T is attached. Further, a tongue-shaped portion 29 is provided at an end portion of the back surface 27 of the cover to prevent the flexible wiring board 13 from contacting the chart paper T when the cover 20 is closed.

[0008]

However, even in the case of such a structure, when the chart paper is in a curled state due to humidity or the like, when it is attached to the back surface 27 of the cover 20 with the time adjusted. As shown by the dotted line in FIG. 4, the chart paper T may have a curled portion at the tongue 29, that is, at the lower end of the back surface 27. If the cover 20 is closed as it is, the chart paper comes into contact with the inner surface of the case body 40 and is bent, which may prevent normal recording.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a chart paper loading device for an operation recorder which can correct the curl when the chart paper is loaded and correct the printing even when the chart paper is in a deformed state due to humidity or the like.

[0010]

According to the present invention, there is provided a case main body for accommodating a recording needle for recording a vehicle speed, mileage, etc. on a chart paper, a drive mechanism thereof, and the like, and a hinge structure for the case main body. It is configured to be openable and closable, has a display window for displaying speed, time, etc. on the front surface, can set chart paper on the back surface, and has a tongue-shaped portion for protecting the chart paper on the lower end portion of the back surface. In a chart paper loading device for an operation recorder provided with a cover, a holding portion for holding a peripheral portion of the chart paper is provided on the tongue portion. The holding portion 9A is formed so as to hold the peripheral edge portion of the chart paper from both sides.

[0011]

Since the present invention is constructed as described above,
To attach the chart paper to the operation recorder, open the cover and set the chart paper on the back of the cover.At that time, insert the peripheral edge of the chart paper into the holding part provided on the tongue of the cover. Then, as usual, fit the center hole of the chart paper to the protrusion on the back of the cover and fix it with a holding metal fitting etc.
This is done by closing the cover.

Even if the chart paper is curled due to humidity and the curling position is located at the tongue-shaped portion on the back surface of the cover, that is, the lower end portion of the back surface due to time adjustment, the curl of the chart paper is corrected by the holding portion. , When the cover is closed, the curl part of the chart paper does not hit the inner surface of the main body and bend.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. In addition, the same or corresponding parts as those described in the related art are designated by the same reference numerals and the description thereof will be omitted. FIG. 1 shows an embodiment of a chart paper mounting device for an operation recorder according to the present invention. (A) is a perspective view showing a state in which a cover 20 is opened with respect to a case body 40,
(B) is a perspective view of the main part of the chart paper mounting device, (c) is a view of (b) viewed from the direction of arrow c, and (d) is a view of (c) viewed from the direction of arrow d.

Char of the operation recorder according to the embodiment of the present invention
The feature of the paper loading device is that the comparison between FIG. 1 (a) and FIG.
As can be seen, the tongue on the back 27 of the cover 20
There is a difference in the structure of the rib portions 9 and 29. That is, conventional
The tongue 29 provided on the back surface 27 of the bar 20 has a flat surface.
However, the tongue 9 according to this embodiment has a chart
A holding portion 9A for holding the peripheral portion of the paper T is provided.
That is the point. This holding portion 9A is shown in detail in FIG.
The tip of the tongue 9 is raised almost vertically.
Straight part 9A₁And has this vertical part 9A₁Tip of
To tongue 9 and predetermined gap 9A₃Are formed in parallel with
Square flat plate shaped guide part 9A ₂Is provided. This
Gap 9A₃Is the thickness of 7 sheets of chart paper for 1 week.
Is the interval. Furthermore, this guide portion 9A of the tongue 9
₂The square hole 9A _FourIs opened
Therefore, the amount of materials is being reduced.

The outer surface 9A ₁₁ of the vertical portion 9A ₁ is
As can be seen from the cross-sectional view shown in FIG. 1C, the flexible wiring board 13 (see FIG. 3), which has a curved surface and contacts when the cover 20 is opened and closed, is designed not to give stress. . That is, since the outer surface 9A ₁₁ of the tip portion of the holding portion 9A is formed of a curved surface, even if the holding portion hits a cable or the like by opening and closing the cover, there is no possibility of causing a disconnection or the like. Also, the outer surface 9A of the vertical portion 9A _1
As shown in the plan view of FIG. 1 (d), ₁₁ is formed in an arc shape, which is aligned with the peripheral portion of the circular chart paper.

When mounting the chart paper on the operation recorder, the cover 20 is opened and the chart paper is set on the back surface 27 of the cover 20. At that time, the peripheral edge portion of the chart paper T is placed on the tongue portion of the cover 20. The gap 9 of the holding portion 9A provided in
Sandwiched A _3, covers the rear of the center hole of the chart paper 27
It is carried out by fitting it to the projection 28 of FIG. Even if the chart paper T is curled due to humidity or the like and the curling position is located on the tongue 9 of the cover back surface 27 due to time adjustment, the holding portion 9A
Since the curl is corrected by the curl, the curl portion of the chart paper does not hit the inner surface of the case body 40 and bend when the cover 20 is closed. Also,
Even if the chart paper is curled due to changes in temperature and humidity after it is once mounted, the curling of the peripheral portion is restricted by the holding portion 9A, so curling is also prevented.

In the above embodiment, the gap 9A ₃ of the holding portion 9A is set to 7 sheets of chart paper, but the present invention is not limited to this, and the square hole 9A ₄ of the tongue 9 may be omitted. Absent.

[0018]

As described above, according to the chart paper loading device of the operation recorder according to the present invention, even if the chart paper is in a deformed state in which the chart paper is curled due to humidity or the like, when the chart paper is loaded, the curl is corrected and normal recording is performed. It can be carried out.

[Brief description of drawings]

1A and 1B show an embodiment of a chart paper mounting device for an operation recorder according to the present invention, FIG. 1A is a perspective view showing a state in which a cover 20 is opened with respect to a case body 40, and FIG. The figure, (c) is the figure which looked at (b) from the arrow c direction, and (d) is the figure which looked at (c) from the arrow d direction.

FIG. 2 is a perspective view showing an external appearance of an operation recorder used conventionally.

FIG. 3 is a cross-sectional view taken along the line AA ′ of the operation recorder shown in FIG.

FIG. 4 is a cross-sectional view of the operation recorder with the cover open.

FIG. 5 is a perspective view showing a state in which a cover is opened for explaining a chart paper mounting structure of a conventional operation recorder.

[Explanation of symbols]

9 Tongue-shaped portion 9A Holding portion 9A ₁ Vertical portion 9A ₂ Guide portion 9A ₃ Gap 11 First wiring board 13 Flexible wiring board 20 Cover 21 Second wiring board 27 Cover back surface 28 Protrusion 29 Tongue-shaped portion 30 Counter cover 40 Case body

Claims (2)

[Claims] 1. A case body accommodating a recording needle for recording a vehicle speed, mileage, etc. on a chart paper, a drive mechanism thereof, etc., and a hinge structure which can be opened and closed with respect to the case body, and a front surface of the case body. An operation recorder having a display window for displaying speed, time, etc., and a cover on the back of which chart paper can be attached, and a tongue-shaped portion for protecting chart paper is provided at the lower end of the back. The chart paper loading device of the operation recorder, wherein the tongue-shaped portion is provided with a holding portion that holds a peripheral edge portion of the chart paper. 2. The chart paper loading device for an operation recorder according to claim 1, wherein the holding portion is formed so as to hold the peripheral edge portion of the chart paper from both sides.