JPS6030078Y2 - ruler - Google Patents

Description

[Detailed description of the invention] This invention is a ruler used for drawing lines or cutting paper, and when the ruler is pressed, the entire bottom surface presses against the paper, fixing the paper, It is a ruler that can be used for drawing lines, cutting, etc. not only by professionals but also by amateurs and children.

Conventional long rulers had the disadvantage that when the center was pressed from above, both ends would lift up and separate, making it impossible to hold the paper firmly, causing the paper to shift and making it impossible to work in the best way.

For this reason, during the work, the hand holding the ruler was moved little by little while the work was being done, and since the work was not done in one go, it was difficult to draw or cut clean lines without skill.

The present invention solves these shortcomings and relates to a ruler that allows professionals, amateurs, and children to easily draw and cut lines by pressing the back of the ruler against paper, and see the attached drawing for its construction. The details are as follows.

A guide groove 3 for the cutter knife 2 is formed in the middle of the elongated ruler plate 1 in the longitudinal direction, and on both ends of the ruler plate 1 on one side of the guide groove 3, both ends of a pressing rod 4 having a little elasticity are placed. It is fixed to the lower surface of the pressing rod 4 and the upper surface of the ruler plate 1 with a small gap therebetween.

The ruler plate 1 in the drawing is made of a transparent acrylic resin plate, and a non-slip colored tape 5 is attached to one side.

The pressing rod 4 in the drawing is a U-shaped metal plate, nuts 6 are welded to both ends of the pressing rod 4, and a ruler plate 1 is attached to this nut '6.
The pressing rod 4 is fixed onto both ends of the ruler plate 1 by screwing and tightening screws 7 from the lower surface of the ruler plate 1.

It is preferable to display a scale on the upper surface of the ruler plate 1 as necessary.

8 in the figure is a holding frame.

Since the present invention is configured as described above, when the center of the press rod 4 is pressed, the center of the press rod 4 is bent downward and presses the upper surface of the ruler plate 1.

Of course, both ends of the ruler plate 1 are also pressed because when the center of the pressing rod 4 is pressed, the pressing force is transmitted to both ends of the ruler plate 1 as well.

Therefore, when the center of the press rod 4 is pressed, the entire ruler plate 1 is pressurized, so the paper 9 is firmly pressed with an average force at both the center and both ends, and in this state, the paper 9 is guided The cutter knife 2 is inserted into the groove 3, and the cutting operation is performed accurately and efficiently in one operation.

There is no need to move your hand and hold the ruler down as you would with conventional methods, and the work can be done in one motion, resulting in clean cuts.

The structure of this product is simple, just installing the pressure rod 4 on the ruler plate 1, so it can be mass-produced, which makes it possible to provide the product at a lower price, and the pressure rod 4 also serves as a handle for the ruler plate 1. This will provide an easy-to-use ruler.

Furthermore, this product has the same practical effects as providing a ruler that can be used for a variety of purposes, such as for professionals such as picture frame shops and mounting shops, as well as for school crafts and home use. .

[Brief explanation of the drawing]

Figure 1 is a slope view of the proposed product, Figure 2 is a side sectional view of its main parts, Figure 3 is a slope view showing the used condition of the proposed product, and Figure 4 is a front view of the proposed product also showing the used condition. It is. 1... Ruler plate, 2... Cutter knife, 3... Curved guide groove, 4... Pressing rod.

Claims (1)

[Scope of utility model registration request] Form a guide groove for a cutter knife in the middle length direction of a long and slender ruler plate, and place both ends of a slightly elastic pressing rod on both ends of the ruler plate on one side of this guide groove, and connect the lower surface of the pressing rod and the ruler. A ruler that is fixed to the top surface of a board with a small gap between them.