JPH0531945Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a portable drafting table that is convenient to carry.

[Conventional technology]

Conventional drafting tables include floor-mounted ones with a drawing plate holder attached to the top end of the legs so that the angle can be adjusted, and those with a drawing plate holder attached to the front end of a flat square frame-shaped seat body so that the angle can be adjusted. There is a desk-top type, and the desk-top type is used by fixing it to a desk by tightening it with screws, clamps, etc.

Regarding the angle adjustment device for the drawing plate holder, there is an air adjustable type in which the air cylinder that supports the drawing plate holder is actuated by a petal, etc., or a device in which a female thread is fixed to the drawing plate holder and a handle is attached to a support rod that is screwed with the male thread. There are screw-adjustable types that are attached, and long-hole adjustable types that have long holes in the support rods that support the drawing plate holder.

[The problem that the idea aims to solve]

Of the conventional drafting tables mentioned above, floor-type drafting tables are heavy and cannot be easily carried, and even table-top drafting tables are not intended to be carried around and are fixed to the desk. It was used for.

Also, regarding the angle adjustment device for the drawing plate holder, the drawing plate holder is moved by human power.
It has a structure that is difficult to operate, such as a boosting mechanism and a latching mechanism, and the angle adjustment method is cumbersome and is not suitable for one-touch operation.

In view of the above-mentioned circumstances, the purpose of this invention is to provide a drafting table that is convenient to carry and that can adjust the drawing plate holder to an appropriate angle with the simple operation of a button. be.

[Means to solve the problem]

This invention to achieve the above purpose consists of a drawing board, a drawing board holder formed in a narrow width for receiving the center width of the drawing board, and a seat plate whose front end is pivoted on the drawing board holder. and a drive for moving the lower end of the support rod above the seat plate back and forth by the power of a motor, with a support rod interposed between the seat plate and the drawing plate holder, and pivotally supported on the drawing plate holder. The device is covered with a case, and a cord is pulled out from the case, and an operation panel is provided at the end of the cord, and a control device for the drive device is installed in the case of the seat plate and the operation panel, and the control device is arranged on the operation panel. The angle of the plate holder can be adjusted by operating a push button.

[Effect]

The portable drafting table is configured as described above, and when carrying it around, the drawing board can be folded over the seat board to create a compact form with a case sandwiched between them, and its width is also extremely small. Because it is small and narrow, it is easy to carry.

When using it, it is placed on a desk or table, but because the seat plate is fixed on the desk due to the weight of the drive device and control device, the drawing board cannot be stabilized even if the seat plate and drawing board holder are narrow. can be supported.

Further, when adjusting the angle of the drawing board, the operation can be easily performed by placing the operation panel close at hand and by simply operating a push button.

〔Example〕

Next, an embodiment of this invention will be described based on the drawings.

The drawing shows one embodiment, and the drawing table S
The seat plate 1, the drawing plate holder 2, the support rod 3, the drive device 4,
It is composed of a control device 5, an operation panel 6, a drawing board P, etc.

The seat board 1 and the drawing board holder 2 are formed to have a narrow width that is sufficient to receive the center part of the width of the drawing board P. Of these, the seat board 1 is formed into a shallow box shape, and the left and right side walls 1 are formed at the front end.
1 and 11, a support shaft 12 of the drawing plate holder 2 is installed.

The drawing plate holder 2 is in the form of a plate with the same size as the seat plate 1, and has side flanges 13, 13 formed on both left and right sides at intervals that can hold the seat plate 1, and a drawing board at both the upper and lower ends. Support flanges 14 and 15 are formed to attach P, and the support shaft 12 is attached to left and right side flanges 13 and 13.
It is attached by passing it through. Further, set screws 16, 16 are attached to both left and right ends of the upper support flange 14, so that the drawing board P can be fixed by the set screws 16, and the both side flanges 13, 16 are attached to the middle part of the height.
13 is provided with shaft holes 18, 18 that communicate with the support rod 3.

The support rod 3 is made of round bar material on both side walls 11, 11 of the seat plate 1.
A shaft 17a is formed at the lower end by bending it into a U-shape across the width between them, and upper end shafts 17b are bent outward on both sides of the upper end.The lower end shaft 17a is connected to the drive device 4, and the upper end Axis 17
b, 17b are connected to the drawing plate holder 2 by passing them through the shaft holes 18, 18.

A drive device 4 for moving the support rod 3 back and forth, a control device 5, and an equipment frame 8 for these are provided on the seat plate 1 and covered with a case 7. The part 19 is formed into a slope so that the drawing plate holder 2 can be tilted low, and long notches 20, 20 are provided at the lower ends of both sides in the range where the support rod 3 moves.

The equipment frame 8 has frame plates 2 on both sides as shown in FIG.
1, 21 and front and rear frame plates 22, 23, the rear parts 21a, 21a of both side plates 21, 21 are formed high, and the rear frame plate 23 is formed at the same height.

The drive device 4 includes a female thread 25 that drives the support rod 3;
It is comprised of a male screw 26 that is screwed into it, a motor 27 that drives the male screw 26, and the like.

The female screw 25 is a square cube that is housed in the equipment frame 8 so as to be movable back and forth, and has a shaft groove 28 at its lower end in which the lower end shaft 17a of the support rod 3 engages. The male screw 26 is pivotally supported by the front and rear frame plates 22 and 23 of the equipment frame 8, and a driven gear 31 that meshes with a drive gear 30 of a motor 27 is attached to the rear end, and the motor 27 is fixed to the rear frame plate 23.

Then, due to the operation of the motor 27, the male screw 26
When rotates, the rotation of the motor 27 is positive;
Female thread 2 on either the front or rear according to either “reverse”
5 moves, and the lower end shaft 17a of the support rod 3 accompanies this movement, so that the inclination angle of the drawing plate holder 2 supported by the support rod 3 changes either upward or downward.

The control device 5, whose circuit is shown in FIG. 6, is disposed inside the case 7 and inside the operation panel 6. Inside the case 7, there are 11 limit switches LS1 as position sensors on both outer surfaces of the equipment frame 8.
~ LS11 are installed by shifting their positions alternately little by little, and each switch 32 is oriented downward so that it operates on the lower end shaft 17a of the support rod 3, and the first limit switch LS1 is at the lowest stop.
The penultimate limit switch LS10 is used for the top stop. the last limit switch
LS11 acts as a safety device to prevent overruns that may occur if other limit switches fail.

The operation panel 6 is installed at the tip of the cord 9 pulled out from the case 7, and there are 12 switches inside the panel.
SW1 to SW12 are installed, of which the last switch SW12 is a start switch, and the penultimate switch SW11 is a stop switch.

Above the operation panel 6 is the start switch mentioned above.
In addition to the push button B12 corresponding to SW12 and the push button B11 corresponding to stop switch SW11 being arranged with signs of "START" and "STOP",
1st switch SW1 to 10th switch SW1
Push buttons B, B, . . . corresponding to 0 are arranged with numerical markings from "1" to "10".

When using the above-mentioned drawing table S, place it on the desk and attach the drawing board P to the drawing board holder 2.

When adjusting the angle of the drawing board P to a higher value, press the numbered pushbutton B (for example, pushbutton 10 as shown in FIG. 1) corresponding to the angle, and then press the start pushbutton B12. Then, the motor 27 is activated, and the rotation of the male screw 26 moves the lower end shaft 17a of the support rod 3 forward together with the female screw 25, and the drawing board P
becomes high, but when the lower end shaft 17a touches the switch 32 of the 10th limit switch SL10,
By stopping the motor 27, the drawing board P is held at the current height. If you want to stop at any angle midway, just press the stop pushbutton B11 at that time.

Moreover, when adjusting to a lower stage, it is sufficient to press the push button B of that stage and then press the start button B12 in the same way.

In addition, when operating the operation panel 6, if it is placed next to the drawing board P, it can be easily reached and operated.

When carrying the drawing table S, the drawing board P is removed and the drawing board holder 2 of the seat board 1 is closed by operating the first push button B1 (FIG. 5). As a result, the space between the seat plate 1 and the board holder 2 is almost sealed by the case 7, resulting in a compact form.

[Effect of idea]

As explained above, the portable drafting table of this invention can be folded compactly and carried around, making it very convenient to carry. This is very convenient when you go out to do the drawings. In addition, it is easy to use because you only need to place it on a desk, and it can be used stably even if the width is narrow.Furthermore, the angle of the drawing plate holder can be easily adjusted by pressing a button, and it can be used easily while drawing. This has the excellent effect that the drafting table does not start moving even when the start switch is touched, and it can be easily done by placing the operation panel in an easy-to-reach location.

[Brief explanation of the drawing]

The drawings show one embodiment, and Fig. 1 is a perspective view showing the state of use, Fig. 2 is a perspective view showing the internal structure, and Fig. 3 is a perspective view showing the internal structure.
The figure is a longitudinal sectional view showing the angle adjustment structure of the drawing plate holder, Fig. 4 is a plan view showing the same angle adjustment structure, Fig. 5 is a longitudinal sectional view of the drawing plate holder at a closed angle, and Fig. 6 is the control device. FIG. B, B11, B12...Push button, S...Portable drafting table, P...Drawing board, 1...Seat board, 2
...Drawing board holder, 3... Support rod, 4... Drive device, 5
...Control device, 6...Operation panel, 7...Case, 9
...Code, 27...Motor.

Claims (1)

[Scope of utility model registration request] It comprises a drawing board, a drawing board holder formed in a narrow width for receiving the center width of the drawing board, and a seat plate whose front end is pivotally supported by the drawing board holder; and the seat plate and the drawing board holder. A support rod is interposed between the support rod and the support rod is pivotally supported on the drawing plate holder, and a drive device is provided on the seat plate that moves the lower end of the support rod back and forth using the power of a motor, and is covered with a case. A cord is pulled out from the cord, an operation panel is installed at the end of the cord, and a control device for the drive device is installed inside the case of the seat plate and the operation panel.
A portable drafting table characterized in that the angle of the drawing plate holder can be adjusted by operating push buttons arranged on the operation panel.