JPH01156099A - Feeder for rolled drawing sheet - Google Patents

Abstract

PURPOSE: To shorten the design time while preventing waste of drawing paper by providing a body being fixed to a drawing table, and a member provided on the body in order to support the drawing paper rotatably and removably while being engaged with the central part thereof. CONSTITUTION: Specified length of a drawing paper is drawn out by pulling the end part of a roll paper W and applied onto a drawing table 11 before starting design. The roll paper W is turned on first and second positioning members 7, 8 or turned integrally on a supporting bar 6 and drawn out sequentially. The part to be cut off upon finishing design is set at the position of a cutter 9 which is then moved along a guide rail 10. Since a required quantity of drawing paper W is fed while continuing design work and the drawing paper W is cut into a length corresponding to the drawing upon finishing design, the work for examining the required length can be eliminated and the design time can be shortened correspondingly. Furthermore, the cutter 9 can be translated surely through a simple work relative to the roll paper W.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a rolled drafting paper supply device that is attached to a drafting table and can supply drafting paper during design.

(Prior art) Conventionally, when designing a long drawing, a roll of drawing paper made of tracing paper, film, etc. is wound into a roll so that the center is hollow, and then cut into appropriate lengths. The design is then made by pasting the cut drafting paper on a drafting table.

However, the length of the cut drawing paper is not necessarily appropriate, and it takes a lot of time and effort to fit it into the actual designed drawing, and the drawing paper is wasted. There are layer points.

That is, the length of the drawing paper used for design is determined in advance by considering the length, layout, etc. of the design drawing. However, it is difficult to accurately predict the length, layout, etc. of design drawings, and accurate prediction often requires a great deal of time and effort (usually only a rough estimate can be made). The length of the drawing paper is determined by attaching it to the paper.As a result, the length of the cut paper tends to be inappropriate, and if it is long, it is necessary to cut off the unnecessary parts.
If the length is too short, it is necessary to interrupt the design and add on. Therefore, the drawing paper is wasted, and adjusting the length of the drawing paper requires a lot of time and effort.

(Objective of the Invention) The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to shorten the design time by omitting the time and labor required for adjusting the length of drawing paper, and An object of the present invention is to prevent waste of drafting paper and to provide a roll-shaped drafting paper supply device that can smoothly supply the rolled drafting paper during designing.

(Structure of the Invention) The present invention is a roll-shaped drafting paper supply device in which a roll-shaped drafting paper having a hollow center is installed on a drafting table, and the drafting paper is pulled out and fed. The apparatus includes a main body that is attached to a drafting table, and a support member that is provided on the main body and engages with the center of the drafting paper to rotatably and detachably support the drafting paper.

(Example) Embodiments of the present invention will be described based on the drawings.

(First Example) A first example will be described based on FIGS. 1 to 6. In the figure, 1 is a supply device for rolled drawing paper, and 2 is a main body.

A pair of mounting members 3 are provided on one side of the main body 2 and are fitted with a drawing table 11i. A second racket 4.5 is provided. Each attachment member 3 is configured to be fastened to the drafting table 11 by engaging the fixed portion 3a with an edge of the drafting table 11 and operating the movable portion 3a.

Each bracket 4.5 is a member that supports an L-shaped support bar 6. One end of the support bar 6 is rotatably supported on the first bracket 4, and the other support bar 6 is supported on the second bracket 5. A U-shaped iR5a that locks the end is formed, and the U-shaped
A stopper 5b is rotatably provided, which engages one end of the support bar 6 locked in the letter-shaped groove 5a and prevents the support bar 6 from falling off. Note that the stopper 5b is connected to the support bar 6.
When engaged with the second bracket 5, it is preferable that the second bracket 5 be firmly held by a holding means such as a fixing screw or a spring.

The support bar 6 is a support member that engages with the center of the rolled drawing paper (hereinafter referred to as rolled paper) W to support the rolled paper W. A second roll positioning member (hereinafter referred to as positioning member) 7.8 is rotatably and slidably mounted. As shown in FIG. 5, each positioning member 7.8 has a small-diameter cylindrical portion 7a, 8a at its tip, and is formed into a truncated cone shape with a tapered surface (or an arcuate surface). When the rolled paper W is engaged with the bar 6, it comes into contact with each end surface of the rolled paper W to position and support it.

At this time, since each positioning member 7.8 is formed in a truncated cone shape, the rolled paper W1. has different diameters at the center as shown in FIG. Wt is properly positioned, and even when pulled out in an oblique direction as shown by the arrow in FIG. It is guided smoothly along the line and pulled out without damage.

Reference numeral 9 denotes a cutter having a razor blade or the like, and the cutter 9 is movably supported by a guide rail 10 provided above each bracket 4.5 in parallel with the support bar 6, and normally pulls out the rolled paper W. It is retracted to the first bracket 4 side outside the passage.

The present embodiment is constructed as described above, and its usage status is as follows.

The supply device 1 engages the fixed part 3a of each mounting member with one side edge of the drafting table 11, and operates the movable part 3a to fasten it to the above-mentioned negative side edge, thereby drafting as shown in FIG. It is attached to the stand 11. Then, the stopper 5b is rotated to release the engagement with the support bar 6, the support bar 6 is rotated and removed from the O-shaped groove 5a, and the second positioning member 8 is temporarily extracted from the supporter bar 6. After that, the roll-shaped paper W is attached to the support bar 6, and the second positioning member 8 is re-fitted to the support bar 6 so as to come into contact with the end of the roll-shaped paper W, and the support bar 6 is fixed as described above. is rotated in the opposite direction to lock one end in the O-shaped groove 5a, and the stopper 58 is rotated in the opposite direction to the above and engaged with the support bar 6.

Next, when designing, the edge of the rolled paper W is pulled, the drafting paper is pulled out a predetermined length, and is pasted on the drafting table If, and the design is performed. At that time, if you pull the edge of the rolled paper W,
The rolled paper W is the first. It is rotated on the second positioning member 7.8 or rotated together with each positioning member 7.8 on the support bar 6 and pulled out one after another. During design, if the drawing paper that has been drawn out is insufficient, the necessary amount is further drawn out and supplied. When the design is completed, the part to be cut is aligned with the position of the cutter 9 by pulling out and returning the rolled paper W according to the actual designed drawing.
The cutter 9 is moved along the guide rail IO for cutting.

As mentioned above, supply the required amount of drafting paper while designing,
After the design is completed, it can be cut to a length that corresponds to the designed drawing, so there is no need to consider the required length of the drafting paper in advance, cut out unnecessary parts, and add the missing parts, etc., as in the past. Therefore, the work required for these can be omitted, and the design time can be shortened accordingly. Also, cutter 9
Since it is provided so as to move parallel to the rolled paper W, the operation can be performed easily and reliably.

(Second Example) A second example will be described based on FIG. 7. In addition, in FIG. 7, the same reference numerals as in FIGS. 1 to 6 mean the same functional members.

In the unimplemented example, as shown in FIG. 7, the main body is divided into two parts, a first main body 12 and a second main body 13, and one end of the guide 10 is slidably provided on the second bracket 5. Otherwise, the structure is the same as that of the first embodiment. Therefore, it is possible to supply roll paper W in the same way as in the first embodiment, and by setting the distance between the first and second main bodies 12. Get the paper W.

(Third Example) A third example will be described based on FIG. 8. In addition, in FIG. 8, the same reference numerals as in FIGS. 1 to 7 mean the same functional members.

In this embodiment, as shown in FIG. 8, the first main body 12 is formed into a cylindrical shape, the second main body 13 is slidably attached to the first main body 12, and both can be fixed by a slide fixture 14. It is provided. Although the pair of attachment members 3 are provided on one side of the first body 12, one may be provided on the first body 12. Further, a first body provided in the first body 12
A first support bar 15 is provided on the bracket 4 in parallel with the first body 12, and a second support bar 16 is provided on the second bracket 5 provided on the second body 13, facing the first support bar 15. It is provided. and each support bar 15.16
are provided with first and second positioning members 7.8, respectively.

Therefore, the supply device 1 of this embodiment is attached to the drafting table 11 in the same manner as in the first embodiment, but the rolled paper W is attached as follows. That is, by loosening the slide fixture 14 and moving the first body 12, the first support bar 1 is moved.
5 and the second support bar 16, and the first support bar 1
Attach one end of the rolled paper W to 5. After that, the second main body 13 is approached, the second support bar 16 is attached to the other end of the rolled paper W, and the slide fixing fitting 14 is tightened to close the second main body 1.
3 is fixed to the first main body 12. At this time, the first and second positioning members 7.8 are in contact with each end of the rolled paper W, and the drawing paper W is smoothly pulled out in the same manner as in the first embodiment.

In this embodiment, the rolled paper W can be supplied in the same way as in the first embodiment, and the second main body 13 is slidably attached to the first main body 12, and the first support bar 15 and the second Since the distance between the support bar 16 and the support bar 16 can be adjusted, it is easy to take off the roll paper W, and roll paper W of various sizes can be attached.

(Effect of the invention) By attaching the roll-shaped drafting paper supply device of the present invention to a drafting table, there is no need to determine the length of the drafting paper in advance, and the necessary length can be extracted and supplied while designing. After completion, it can be cut to the appropriate length according to the design drawings.

Therefore, there is no need to consider the length, layout, etc. of design drawings as in the past, and there is no need to cut out unnecessary parts after designing or add missing parts during design. Design time can be shortened. Further, as described above, since the drawing paper can be cut in accordance with the actual design drawing, unnecessary cutting is not required as in the conventional method, and waste of the drawing paper can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the first embodiment of the present invention, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is m-m in FIG. 1.
4 is an explanatory diagram of the state in which the first embodiment of the present invention is used, FIG. 5 is an explanatory diagram of the state in which the rolled drafting paper is installed in the first embodiment of the present invention, and FIG. FIG. 7 is a perspective view of the second embodiment of the invention, and FIG. 8 is a perspective view of the third embodiment of the invention. l... Rolled drafting paper supply device, 2... Main body,
3... Mounting member, 4.5... First and second bracket, 5a... U-shaped groove, 5b... Stopper, 6
... Support bar, 7.8... First and second roll positioning member, 9... Cutter, lO... Guide rail, 11... Drafting table, 12.13... First and second main body, 14... slider fixing fitting, 15.16...
- First and second support bars, W, W,, W, . . . Rolled drafting paper.

Claims (1)

[Claims] (1) A roll-shaped drafting paper supply device that installs a roll-shaped drafting paper with a hollow center on a drafting table, pulls out and supplies the drafting paper, and includes a main body that is attached to the drafting table, and a main body that is attached to the drafting table. 1. A supply device for rolled drafting paper, comprising: a supporting member that engages with a central portion of the drafting paper to rotatably and detachably support the drafting paper.