JPH08136242A - Graphics measuring device - Google Patents

Abstract

PURPOSE: To provide a graphics measuring device whose measuring range is equal to that of a conventional device while the total length is shorter, or, whose total length is equal to that of a conventional one while the measuring range is winder. CONSTITUTION: This device comprises rollers 2 which are provided, on both sides of a body, while projecting in horizontal axis 14 in the body so that a body 1 is allowed to move in the horizontal direction straight, a measuring rod 6 which is, on a horizontal plane, allowed to rotate right and left from the straight line direction around a vertical axis 13 by a specified angle, and a trace point 7a on the center of a tracer lens 7 provided at the tip of the measuring rod. The vertical axis 13 is assigned on the side opposite to the tip side of the measuring rod 6 against the horizontal axis 14, and, the positions of horizontal axis part of the measuring rod 6 and a battery housing part 12 are, as a plate-like body 6a, allowed to move rotatably, under them.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a figure measuring apparatus for measuring an area, line length or coordinate value of a drawing to be measured by aligning a trace point with an outer peripheral line of the drawing to be measured on a horizontal plane such as a drawing.

[0002]

2. Description of the Related Art FIG. 5 is a plan view of an example of a conventional graphic measuring apparatus. This device has 1
The main body 1 is configured to be movable on a horizontal plane in a direction perpendicular to the horizontal axis by rollers 2 provided on the horizontal axis of the book.

Further, a measuring rod 6 is pivotally supported by a vertical shaft provided inside the main body 1 so as to be horizontally rotatable by a constant angle to the left and right with respect to the moving direction of the main body 1. A fixing device 11 that is rotatably pivotally supported to fix the rotation of the measuring rod 6 is provided, and the measuring rod 6 is used when the device is not used.
Is configured to be fixed.

A tracer lens 7 having a trace point 7a marked at the center is provided at the tip of the measuring rod 6, and a mark needle 8 is provided at the tip of the measuring rod 6 so as to project in the lateral direction of the measuring rod 6. From the tracer lens 7 to the main body 1 side, a read / mark switch 9 and a read switch 1
0 is provided.

An input device (keyboard) 3 and a display unit 4 are provided on the upper surface of the main body 1 so that various kinds of usage can be designated and measurement results can be displayed. Roller fixing rod 5 for fixing 2
Is provided.

FIG. 6 is a rear view of this device. The measuring rod 6 is pivotally supported by a vertical shaft 13 so as to be horizontally rotatable. A battery serving as a power source is provided between the vertical shaft 13 and the horizontal shaft 14. Storage 12
Is provided, and the vertical shaft 13 is provided close to the peripheral portion of the main body 1 where an internal space for providing an encoder for detecting the moving angle of the measuring rod 6 is provided on the vertical shaft 13.

[0007]

In the structure as described above, if the measuring rod 6 having a constant length is used, the total length of the device is 6 mm.
Since the distance from the vertical axis 13 to the periphery of the main body 1 is subtracted from the sum of the length from the tip of the vertical axis 13 to the vertical axis 13 and the diameter of the main body 1, the length of the measuring rod 6 is reduced in order to shorten the overall length of the device. If the length is shortened, the measurable width is narrowed even when the measuring rod 6 is swung at the maximum angle, which makes the device difficult to use.

In order to expand the width of the measuring range, the measuring rod 6
It is necessary to increase the length of the device, and as a result, the total length of the device becomes long, which makes the device difficult to use or house.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to provide a graphic measuring device having a measurement range which is the same as that of the prior art and which has a shorter total length or which has a conventional measurement which has a wider measurement range.

[0010]

In order to solve the above-mentioned problems, rollers provided on both sides of the main body 1 by a horizontal shaft 14 in the main body 1 so that the main body 1 can be moved in a horizontal linear direction. 2, a measuring rod 6 which is rotatable about the vertical axis 13 in the main body 1 to the right and left with respect to a linear direction on a horizontal plane, and a trace of the center of a tracer lens 7 provided at the tip of the measuring rod 6. In the figure measuring device provided with the point 7a, the vertical shaft 13 is arranged on the side opposite to the tip end side of the measuring rod 6 with respect to the horizontal shaft 14, and the horizontal shaft portion of the measuring rod 6 and the battery housing portion 12 serving as a power source. Position is plate 6
a, and the lower side of these is rotatably movable.

[0011]

As described above, the horizontal shaft 14 and the battery storage portion 12 are provided.
Since the measuring rod 6 on the lower side is a plate-shaped body 6a, it is possible to use a narrow gap with the measurement drawing.
By arranging 3 on the side opposite to the conventional device with respect to the horizontal axis 14, the operation is exactly the same as the conventional device, but the overall length is shortened. Further, if the upper surface has the same outer shape as the conventional one, it is possible to increase the length of the measuring rod 6, so that the measuring range in the Y-axis direction can be expanded.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a rear view of a figure measuring device which solves the above problems, FIG. 2 is a top view thereof, and FIG. 3 is a sectional view of a vertical axis portion including an encoder. 1, the vertical axis 1
3 is provided on the side opposite to the tracer lens 7 at the tip of the measuring rod 6 with respect to the horizontal shaft 14, and the lower portion of the main body 1 of the measuring rod 6 is composed of a plate-like body 6a as shown in FIG. It is configured to use a narrow space between the lower side of the battery housing 12 and the measurement drawing.

A portion of the vertical shaft 13 is a bearing 13a fixed to the main body 1, and a shaft 13b vertically fixed to the plate-like body 6a of the measuring rod 6 so as to be lightly rotated via a ball bearing. Further, an encoder 15 is provided between the shaft 13b and the main body 1. Therefore, the vertical axis 13 including the encoder 15 has a large vertical dimension and is necessarily provided near the periphery of the main body 1.

Further, since the tracer lens 7 is provided at the tip of the measuring rod 6 and the read / mark changeover switch 9 and the reading switch 10 are provided at the intermediate portion, the inner surface of the measuring rod 6 has a certain depth. It is necessary, and the tip end side of the plate-shaped body 6a has the depth of the conventional measuring rod.

The operation of this device is indicated by the output of an encoder which is interlocked with the horizontal axis of the roller 2 in the lateral position, that is, the X-axis direction of the coordinate axis, and the Y-axis direction of the encoder 15 in the vertical axis portion of the measuring rod 6. Displayed by output.

Although FIG. 5 shows a conventional device, the length of the measuring rod 6 can be lengthened and the position of the vertical axis 13 can be set as shown in FIG. In this case, the outer shape of the upper surface is the same as the conventional one, but the measurement range is expanded.

FIG. 4 is an explanatory view of the measuring range. When the maximum deflection angle ± α of the measuring rod 6 is fixed, the measurable limit line A is obtained by the apparatus according to one embodiment of the present invention in FIG. 2 and the conventional apparatus in FIG.
Are the same in the range indicated by the alternate long and short dash line, but the apparatus of the present invention has a shorter overall length and is easier to handle and store.

On the other hand, even if the maximum deflection angle of the measuring rod 6 of the apparatus of another aspect of the present invention is ± α, the length of the measuring rod 6 is long,
For example, even if the shape of the upper surface is the same as that of the conventional device shown in FIG. 5, the measurable limit line B shown in FIG. 4 is wider than A as shown by the chain double-dashed line, and the measurement range is expanded accordingly. You can

[0019]

As described above, a part of the measuring rod 6 is replaced by the plate-shaped body 6.
By adopting a, the vertical shaft 13 can be provided on the opposite side of the horizontal shaft 14, the total length can be shortened without changing the function of the device, and the handling and storage becomes easy.

If the outer shape of the upper surface is the same as the conventional one, the measuring rod 6 can be lengthened and the measuring range in the Y-axis direction can be expanded.

[Brief description of drawings]

FIG. 1 is a back view of a graphic measuring device according to one embodiment of the present invention.

FIG. 2 is a top view of the device of FIG.

FIG. 3 is a sectional view of a vertical axis portion including an encoder.

FIG. 4 is an explanatory diagram of a measurement range.

FIG. 5 is a top view of another aspect of the invention and a conventional device.

FIG. 6 is a rear view of a conventional device.

[Explanation of symbols]

 1 Main Body 2 Roller 3 Input Device 6 Measuring Rod 6a Plate-like Body 12 Battery Storage 13 Vertical Axis 14 Horizontal Axis 15 Encoder

Claims (1)

[Claims] 1. Rollers provided on both sides of the main body by a horizontal shaft in the main body so as to move the main body in a horizontal straight line direction, and in the straight line direction about a vertical axis in the main body. On the other hand, in a figure measuring device provided with a measuring rod that can be rotated left and right by a constant angle on a horizontal plane and a trace point at the center of a tracer lens provided at the tip of this measuring rod, the vertical axis is relative to the horizontal axis. Is arranged on the side opposite to the tip end side of the measuring rod, and the positions of the horizontal shaft portion of the measuring rod and the battery storage portion serving as a power source are plate-like bodies, and the lower side of these is rotatably movable. A graphic measuring device characterized by being.