JPS6110162Y2 - - Google Patents

Description

[Detailed description of the invention] The invention is characterized in that the vertical and horizontal rails that support the coordinate reading head are configured in an H-shape so that they can move freely in any direction within a plane parallel to the drawing surface. Regarding the coordinate solver.

Conventional coordinate analyzers that set the positional relationship between the horizontal rail and the vertical rail in a T-shape, when a force is applied to the lower end of the vertical rail in a direction perpendicular to the longitudinal direction of the vertical rail, the lower end of the vertical rail Lateral vibration occurs in the part. Therefore, there was a drawback in that the coordinate analysis work had to be done exclusively at the top of the drawing board. Further, since the vertical cursor is connected to a balance weight, its movement is extremely light, whereas the horizontal cursor is subject to loads such as the head and the vertical rail, so its movement is extremely heavy. Therefore, when moving the head in any direction, a large inertia is applied to the movement in the direction of the X coordinate axis, and the inertia in the direction of the XY coordinate axes acting on the movement of the head is extremely unbalanced. This was a cause of increased fatigue.

The present invention aims to eliminate the above defects.

The configuration of the present invention will be described in detail below with reference to embodiments shown in the accompanying drawings.

Reference numeral 1 denotes a drawing board that is supported upright with respect to the floor surface, and is supported so that the inclination angle of the drawing board 1 can be set to a desired angle. 2 and 2a are vertical rails arranged on both sides of the drawing board 1, both ends of which are fixed to the drawing board 1, and vertical cursors 11 and 12 are mounted on the vertical rails 2 and 2a, respectively.
is slidably mounted. Reference numerals 3 and 4 indicate pulleys rotatably disposed at both ends of the side surface of the drawing board 1, and a belt 5 is stretched around these pulleys. An encoder 6 is connected to the pulley 3, and the amount of rotation of the pulley 3 is converted into a digital signal, which is counted by a separately provided counter and displayed on the display section 8 of the board 7. It is composed of

A rail 9 is provided on the side of the drawing board 1 parallel to the vertical rail 2a, and a balance weight 10 is slidably attached to the rail 9. The force of the balance weight 10 trying to fall along the rail 9 and the vertical cursor 11,1
Due to the load applied to this of rail 2, 2a
The forces trying to fall along balance each other. Both ends of a horizontal rail 13 are fixed to the vertical cursors 11 and 12. Vertical cursor 1
1 and the balance weight 10 are connected to each other by a belt 5. A horizontal cursor 15 is slidably attached to the horizontal rail, and a support member 16 is fixed to this, and a command keyboard 7 is fixed to the support member 16. 17
is a support frame attached to the support member 16, on which a magnifying glass 18 (coordinate reading head) on which an index is drawn is supported. Said horizontal rail 1
Pulleys 19, 2 rotatably supported at both ends of 3
A belt is stretched between 0 and the horizontal cursor 15 is connected to the belt. Said horizontal cursor 1
5 is detected by an encoder 21 that converts the rotational movement of the pulley 19 into a digital pulse signal, and the output signal of the encoder 21 is counted by a counter and displayed on the display section 8 of the board 7. It is configured as follows. Incidentally, the encoders 6, 21 and the counter constitute a movement amount measuring means. Reference numerals 22 and 23 in the figure are grips.

Next, the operation of this embodiment will be explained.

When you grasp the grips 22 and 23 with your hands and apply force in a direction parallel to one surface of the drawing board, the vertical cursor 1
1 and 12 move along the vertical rails 2 and 2a, the horizontal cursor 15 moves along the horizontal rail 13, and the magnifying glass 18 can be moved to a desired position in the drawing on the drawing board 1. In conjunction with the movement of the vertical cursor 11, the balance weight 10 moves along the rail 9 in the opposite direction, and the vertical cursor 1
The movements of 1 and 12 are made lighter. Align the center of the index of the loupe 18 with a certain point on the drawing, and
By looking at the display on the display section 8, you can know the X and Y coordinate values from the reference position of that point, and by pressing keys on the command keyboard 7, you can output the X and Y coordinate values to the output device. Can be done.
Incidentally, the head 18 may be fixed at a desired position by a brake mechanism, and a machine may be added to move the head 18 slightly in a desired direction from the fixed position.

Since the present invention is constructed as described above, it has the following effects.

Both ends of the horizontal rail are supported by a vertical cursor that is movable along a pair of vertical rails, and the vertical cursor is linked with a balance weight, so that the vertical weight of the head can be adjusted to the horizontal movement. can be brought as close as possible with as little difference as possible,
It is possible to balance the force required to move the head up and down and the force required to move it left and right, which improves the operability of the head and allows the head to be moved lightly and smoothly in the desired direction. can. Moreover, unlike in the past, the rail is not located to the left of the coordinate reading position, so the rail does not get in the way of reading work, and there is no risk of horizontal movement of the rail, so the drawing It is possible to read from the lower part of the screen, and when reading small drawings, there are excellent effects such as the ability for the worker to work while sitting on the chair.

[Brief explanation of the drawing]

FIG. 1 is a front view, and FIG. 2 is a sectional view. 1...Drawing board, 2, 2a...Vertical rail, 3, 4...
...Pulley, 5...Belt, 6...Encoder, 7
... Board, 8 ... Display section, 9 ... Rail, 10
... Balance weight, 11, 12 ... Vertical cursor, 13 ... Horizontal rail, 14 ... Belt, 15 ...
...Horizontal cursor, 16... Support member, 17... Support frame, 18... Loupe, 19, 20... Pulley, 2
1...Encoder, 22, 23...Grip.

Claims (1)

[Scope of utility model registration request] A drawing board 1, a pair of mutually parallel vertical rails 2, 2a disposed on both sides of the drawing board 1, the vertical rails 2,
2a, a means for measuring the amount of movement of the vertical cursors 11, 12 along the vertical rails 2, 2a, and a hanging frame between the vertical cursors 11, 12. a horizontal cursor 15 movably attached to the horizontal rail 13; a means for measuring the amount of movement of the horizontal cursor 15 along the horizontal rail 13; The coordinate reading head 18 is arranged to be movable along the longitudinal direction of the vertical rails 2, 2a in order to interlock in the opposite direction to the movement of the vertical cursors 11, 12 along the vertical rails 2, 2a. balance weight 1
An H-type coordinate analyzer characterized by comprising: 0.