JPS5829963Y2 - Mobile drawing board device - Google Patents

Description

[Detailed description of the invention] This invention involves a mobile drawing board device, which when in use can be pulled out towards the front of the desk and used as a normal drawing board, and when not in use can be pushed back and removed in an upright position. This allows the drawing board to be moved even if documents are placed on the desk to a certain degree of thickness, and the movement can be carried out easily.

There are various stands for drawing boards on the market, but
The designer uses a drafting table and a separate desk, dedicating a large amount of floor space.

Also, those that lay down the drawing board on a flat surface are heavy because the entire weight is moved, and the handles have to be turned many times, making operation difficult.

The present invention solves these drawbacks, and a specific example thereof will be described in detail with reference to the drawings as follows.

1 is the desk, 2 is its top plate, and 3 is the supporting legs.

4 is a base frame having a pair of vertical members 5, 5, and a clamp 6.6
It is attached to the top plate 2 so as to be located at the back of the desk 1.

Reference numerals 7 and 7 designate a pair of support arms, each of which is pivotally connected to the vertical members 5 and 5 by a shaft 8 at its base end, and rotatably connected to the upper end of a movable arm 10.10 by a shaft 9 at its upper end. Ru.

The lower end of this moving arm 10.10 is swingably connected to the base end of the vertical member 12.12 of the drafting frame 11 via a hinge 13.13.

A pair of trochanters 16.16 are mounted on bearings 15.15 at both ends of the horizontal frame 14 of the drafting table frame 11 so as to be swingable in the front and rear directions within the width of the top plate 2. It facilitates the movement of 11 people.

A trochanter 16.1 which can be bent and extended by a pivot 17 between the lower end of the moving arm 10.10 and the shaft 8 and is provided with a stopper 18.
They are connected by a moving range regulating link 19 of No. 6.

In the drawings, reference numeral 21 denotes an angle adjustment device for the drafting frame 11, and a swing rod 22.22 pivotally attached to the side surface of the drafting frame 11.
, a rod 22 attached to the side of the moving arm 10.
22 clamping plates 23, 23 and these clamping plates for rod 2
A clamp 26 is pivotally attached to the bottom side of the drafting frame 11 with a shaft 27, and is held in place by a stopper 28.
1 is of a type that automatically engages with the shaft 8 when returning and pushes down the handle portion 29 when disengaging; 30 is a drawing board attached to the drawing frame 11; 31 is a drafter.

The illustrated device is used as follows.

That is, if you want to use the drawing board 29, hold the lower end of the iron plate and pull it out.

In Figure 2, if no, pull it out to the right. In this case trochanter 16.
16, the drawing board 29 can be moved extremely easily.

The support arm 7 and the moving arm 10 are connected to the shaft 9 and the connecting rod 19
extend from the bent state at the axis 17, and the trochanters 16 and 16 stop when the connecting rods 19 are fully extended.

Here, the angle of the drawing board 29 is appropriately adjusted and fixed using the angle adjustment device 21.

It is now ready for use. After use, the adjustment device 21 is loosened once to eliminate the inclination of the drawing board 29 with respect to the underframe 11, and the drawing board 29 is pushed back by folding the connecting rods 19 at the shaft 17.

In the fully returned position, it will not move even if it remains as it is, but if you prepare the clamp 25 for safety, you can reliably store it.

When moving the drawing board 29, even if books, documents, etc. are placed on the top board 2, there will be no problem as long as they are not too thick, which is very convenient.

According to the present invention, the trochanter is arranged on the support frame of the drawing board, the supporting and moving arms are pivotally connected, and the connecting rod for regulating the movement range of the trochanter is also pivotally connected, so that it hardly receives the weight of the drawing board. Therefore, it is very light and one desk can be used not only as a regular desk but also as a drawing board desk, which reduces the occupied floor space and is therefore economical and improves work efficiency. It has various effects, such as greatly improving performance.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a specific example of a drawing board device according to the present invention, and FIG. 2 is a side view of the same. 1...Desk, 4...Base frame, 5,5...
... Vertical member, 7, 7... Support arm, 8...
...Axis, 9...Axis, 10.10...
・Moving arm, 11... Drafting table frame, 16.16
... Trochanter, 19... Link for regulating movement range.

Claims (1)

[Scope of utility model registration request] A pair of support arms are pivotally attached to a pair of vertical members of a base frame attached to the back of the desk, one end of a movable arm is rotatably connected to the other end of the arm, and the other end of this movable arm is connected to a drafting table frame. is swingably connected to the base end of the drafting frame via a hinge, and a trochanter is mounted on both ends of this drafting frame, and the other end of the movable arm and the base end of the support arm are freely flexibly connected to regulate the range of movement. A mobile drawing board device connected by a connecting rod.