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Foldable ruler

A technology of rulers and ruler segments, applied in the field of stationery, can solve the problems of high cost, bulkiness, waste of materials, etc., and achieve the effect of low price

Inactive Publication Date: 2016-11-16
梁景轩 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ruler of this structure is feasible in principle, but it is difficult to apply in practice
The thickness of the usual ruler is 2~3mm. To install a hinge on such a thin ruler, the diameter of the hinge shaft must be less than 3mm. Such a fine hinge needs to be specially customized and the cost is high. Moreover, the hinge is too small and easy to break, and its life is very short.
But if the thickness of the ruler is set to 10mm, the ruler will not only waste material but also be too bulky

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0029] see figure 1 and figure 2 , a foldable ruler in this embodiment includes a flexible layer 1 and three segments, the flexible layer 1 is a plastic thin layer and has elasticity, the scale is set on the flexible layer 1, and the three segments are bonded to the flexible layer 1 in turn . Due to the existence of the flexible layer 1, the length segments are not easy to be scattered, and under the positioning of the flexible layer 1, the length segments are easy to assemble. The two lengths at both ends are the end lengths 2-1, the middle length is the middle length 2-2, the outer ends of the end lengths 2-1 are set straight, and the end lengths 2-1 One end of the inner side is the splicing part, and the splicing part of the end section 2-1 is provided with a notch, and the shape of the connecting part provided with the notch is set as a "concave" shape, and the connecting part at the two ends of the middle section 2-2 It is provided with a projection that fits and spli...

Embodiment 2

[0031] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. see image 3 , The splicing part of the end ruler section 2-1 is provided with a protrusion, and the connecting part at both ends of the middle ruler section 2-2 is provided with a notch that is spliced ​​with the protrusion of the end ruler section 2-1.

Embodiment 3

[0033] The main technical solution of this embodiment is basically the same as that of Embodiment 1, and the features not explained in this embodiment are explained in Embodiment 1, and will not be repeated here. see Figure 4 , the connecting part of one end ruler section 2-1 is provided with a notch, the connecting part of the other end ruler section 2-1 is provided with a bump, one end of the middle ruler section 2-2 is provided with a bump, and the other end is provided with a There are notches.

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Abstract

The invention provides a foldable ruler. The foldable ruler comprises a flexible layer, and more than two ruler sections which are detachably spliced in a concave-convex manner and sequentially adhered to the flexible layer. According to the foldable ruler, the ruler sections are adhered to the flexible layer; the ruler can be folded after the ruler sections are dismounted and separated; the folded ruler is small in size and convenient to carry; when in use, the flexible layer is unfolded, and the ruler sections are spliced in the concave-convex manner to form a straight ruler, and thus the straight line drawing effect can be ensured; in addition, the ruler sections can be massively standardly produced; the materials of the flexible layer are low in price; the ruler sections are combined with the flexible layer by adhering, so that the manufacturing technology is simple, and the production cost is decreased.

Description

technical field [0001] The invention relates to the technical field of stationery, in particular to a foldable ruler. Background technique [0002] Common rulers currently on the market mainly include rulers and rotatable and foldable rulers. Among them, if the length of the ruler is longer, it is not easy to carry, and if the length is shorter, it is difficult to meet the needs of drawing, especially the needs of large-scale drawing. The rotatable and foldable ruler solves the problem of both portability and length to a certain extent. However, after the rotatable and foldable ruler is rotated and opened, one section of the ruler is located above the other, and the free end of the upper ruler is easily Drooping affects the effect of straight line drawing, and since the ruler is rotatable, it is very easy to shift when drawing and the drawn straight line is not straight. [0003] The Chinese utility model patent document with the publication number CN201211792Y discloses a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L7/00G01B3/06
CPCB43L7/00G01B3/06
Inventor 周思遥
Owner 梁景轩
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