KR101725389B1 - Foldable Triangle - Google Patents

Abstract

The present invention relates to a learning triangle, comprising: a base line provided to form a base of the right triangle, the base line having four rotation shafts so as to form a right triangle; A diagonal having one end connected to one end of the base by a rotation axis and provided with a hypotenuse; A first vertical variable connected at one end to the other end of the chevron by a rotation axis and constituting a part of a vertical side of the right triangle; A second vertical shifter having one end connected to the other end of the first vertical switcher by a movable rotary shaft and the other end connected to the other end of the base line by a rotary shaft; And fixing means formed on one side of the first vertical switcher and the second vertical switcher, wherein the first vertical switcher and the second vertical switch are detachably coupled to each other.
According to the folding triangle according to the present invention, it is possible to expand and use in a triangular shape. By folding the folding triangle according to the present invention, it is possible to prevent the breakage by reducing the volume and improve the carrying efficiency. A foldable triangle is provided to increase the length.

Description

Foldable Triangle {Foldable Triangle}

The present invention relates to a learning triangle, and more particularly, to a foldable triangle that can be folded in a straight line so as to be easily accommodated, and has a right triangle shape when opened, thereby forming a right angle and a hypotenuse.

In general, the right angle triangle for learning is a right triangle with a base at a right angle and a hypotenuse, and is used for the construction and construction of various figures. Such triangles have a relatively large area for carrying due to the height of the right-angled side, and are inconvenient for students when they carry it in a backpack or the like.

Japanese Patent Application Laid-Open No. 10-2010-0095167 (published on Aug. 30, 2010) discloses a body having a receiving groove and a fixing groove formed perpendicular to a direction in which a scale is formed; And an auxiliary tool which is rotatably fixed to one end of the body so that it can be received in the receiving groove and fixed to the fixing groove.

In the case of a person who can construct a triangle or a right angle as in the above cited technique, it may be inconvenient to carry or store due to the right angle side, so that the case may be provided as a folding type. However, the above cited technique has a disadvantage in that it can not construct a diagonal angle with respect to a right angle although it can construct a right angle.

In order to solve the above-mentioned problems, the present invention provides a folding triangle that can be used for forming a variety of figures by reducing the area of a straight line when folded and expanding into a rectangular triangle when expanded.

Other objects of the present invention will become readily apparent from the following description of the embodiments.

In order to achieve the above object, according to one aspect of the present invention, there is provided a bar-like rod having four rotation shafts so as to form a right-angled triangle, A diagonal having one end connected to one end of the base by a rotation axis and provided with a hypotenuse; A first vertical variable connected at one end to the other end of the chevron by a rotation axis and constituting a part of a vertical side of the right triangle; A second vertical shifter having one end connected to the other end of the first vertical switcher by a movable rotary shaft and the other end connected to the other end of the base line by a rotary shaft; And fixing means formed on one side of the first vertical switcher and the second vertical switcher, wherein the first vertical switcher and the second vertical switch are detachably coupled to each other.

Wherein the basal character includes a first receiving end which is provided so that a portion where the second vertical translator rotates and overlaps is reduced by the thickness of the second vertical translator, And a second receiving end provided so as to form an end portion where the overlapping portion is lowered by the thickness of the first vertical variable portion.

Here, the first vertical switcher and the second vertical switcher may be formed along the longitudinal direction at one end of the movable rotary shaft to which the movable rotary shaft is coupled, and have a length that is a half of the length of the first vertical switcher or the second vertical switcher Wherein the movable rotary shaft is provided so as to be coupled through the moving slit of the first vertical switch and the second vertical switch.

Meanwhile, the fixing means may include: fixing protrusions formed on both side bottoms of both ends of the moving slit of the first vertical shifter; And a fixing groove formed on both upper surfaces of both ends of the moving slit of the second vertical shifter and adapted to be engaged with the fixing protrusions.

According to the folding triangle according to the present invention, it is possible to expand and use in a triangular shape. By folding the folding triangle according to the present invention, it is possible to prevent the breakage by reducing the volume and improve the carrying efficiency. A foldable triangle is provided to increase the length.

1 is a perspective view showing an embodiment of a folding triangle according to the present invention.
2 is a perspective view showing a folding triangle of the present invention.
3 is a perspective view showing an embodiment of a folded triangle according to the present invention.
4 is a perspective view showing another embodiment of the folding triangle of the present invention.
FIG. 5 is a perspective view showing an embodiment of a vertical switch of a folding triangle according to the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention, And the scope of the present invention is not limited to the following examples.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like or corresponding elements are denoted by the same reference numerals, and redundant explanations thereof will be omitted.

FIG. 1 is a perspective view showing an embodiment of a folding triangle according to the present invention, FIG. 2 is a perspective view showing a folding triangle according to the present invention, and FIG. 3 is a perspective view showing a folding triangle according to an embodiment of the present invention It is a perspective view.

1 to 3, the present invention may include a base line 110, a chevron 120, vertical lines 131 and 132, and a rotation axis 140.

The folding triangle according to the present invention is provided with a base 110, a chevron 120 and vertical turns 131 and 132 coupled by a rotation shaft 140 so as to form a right triangle shape when the folding triangle is developed.

The base 110 is provided to form the base of the right triangle. The base 140 is coupled to both ends of the base rectangle 110 and coupled to one end of the rectangle 120 and the second rectangle 132, respectively.

Although not shown in the figure, the base character 110 may be used to measure the length as well as to plot the figure, and may display a unit scale at one corner.

The hypotenuse 120 is provided so as to have a diagonal shape of a right triangle. The hypotenuse 120 is coupled to the rotary shaft 140 at both ends thereof, and one end of the base line 110 and one end of the first vertical line 131 are coupled. The hypotenuse 120 is provided to have a longer length than the base line 110 and the vertical lines 131 and 132. Specifically, the ratio of the lengths of the hypotenuse 120, the base 110, and the vertical turns 131 and 132 is set at a ratio of 5: 4: 3, which is a general ratio of the right triangle.

Accordingly, the lengths of the first and second vertical aligners 131 and 132 of the vertical aligners 131 and 132 may be configured to follow the ratio.

2 to 3, when the vertical slopes 131 and 132 are folded outward, the sum of the lengths of the hypotenuse and the first vertical slider 131 is greater than the length of the base slider 110 and the length of the second vertical slider 132 Sum. Therefore, the length of the second vertical switch 132 should be twice as long as the length of the first vertical switch 131.

On the other hand, as shown in FIG. 4, when the vertical switches 131 and 132 are folded inward into the triangular shape, the length of the first vertical switch 131 must be twice the length of the second vertical switch 132.

The folding triangle according to the present invention provides a configuration in which the first vertical variable and the second vertical variable can be folded outward or inward of the triangular shape as described above.

In other words, the moving slit s is formed in each of the first vertical switch 131 to the second vertical switch 132, and the moving slit s of the first vertical switch 131 and the second vertical switch 132 is overlapped The movable rotary shaft 141 is driven to move along the moving slit s so that the contacts of the first vertical rotary switch 131 and the second vertical rotary switch 132 Can be varied.

The total length of the first vertical variable 131 and the second vertical variable 132 is equal to each other and the length of the moving slit s is equal to the total length of the first vertical variable 131 to the second vertical variable 132 / RTI > to about 1/2 < / RTI >

As the vertical switches 131 and 132 are formed in a structure in which the contact points are varied as described above, the vertical switches 131 and 132 can be folded in two ways as shown in FIGS. 3 to 4, Since the length of the folding triangle 100 is different according to the length of the folding triangle 100, it is convenient to use a long straight line or to reduce the volume for carrying.

5, fixing protrusions 131a are formed on both sides of the moving slit s on the surfaces where the first vertical switch 131 and the second vertical switch 132 are in contact with each other, do. The positions of the fixing projections 131a and the fixing grooves 132a are formed on both sides of both ends and the center of the moving slit s.

Since the fixing protrusions 131a and the fixing grooves 132a are formed as described above, when the triangles are extended to form a right triangle or to be folded, the first vertical switch 131 and the second vertical switch 132 overlap each other The fixing protrusions 131a and the fixing grooves 132a are engaged with each other at a point where the fixing protrusions 131a and 132a are engaged with each other.

As shown in FIG. 4, when the first vertical switch 131 and the second vertical switch 132 are folded inward of the triangle, the first receiving end (the second receiving end) 110a and the second receiving end 120a may be formed. The first receptacle end 110a and the second receptacle end 120a are formed on one side of the base line 110 or the chevron to form a step lowered by the thickness of the vertical lines 131 and 132, respectively.

Accordingly, when the triangles are folded inward by folding the vertical turns 131 and 132 inward as shown in FIG. 4, the first vertical end portion 110a and the second vertical end portion 120a are folded into the second vertical turnaround portion 132 and the second vertical turnaround portion 120a, Since the one vertical ruler 131 is accommodated, the thickness of the triangular prism can be reduced, so that the portable prism can be easily carried and the interference or distortion due to the thickness of the triangular prism can be reduced when measuring the length or the shape of the figure.

Hereinafter, the operation of the folding triangle according to the present invention will be described.

The folding triangle according to the present invention can be folded in the form of a straight line for carrying or measuring the length, and folded in two ways, so that the length of the straight line can be extended or reduced. Also, since it can be transformed into a general acute angle to an obtuse angle shape as well as a right triangle shape, it can be used variously for learning. In addition, the triangular shape can be stably fixed by the fixing groove and the fixing projection when the triangular shape is developed.

Although the present invention has been described with reference to the accompanying drawings, it is to be understood that various changes and modifications may be made without departing from the spirit of the invention. Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the following claims.

100: folding triangle 110: base line
110a: first receiving end 120:
120a: second receiving end 131: first vertical ruler
132: second vertical variable s: moving slit
140: rotating shaft 141: movable rotating shaft

Claims (4)

In a bar-like shape having four rotation shafts so as to form a right triangle shape,
A base character provided to form a base of the right triangle;
A diagonal having one end connected to one end of the base by a rotation axis and provided with a hypotenuse;
A first vertical variable connected at one end to the other end of the chevron by a rotation axis and constituting a part of a vertical side of the right triangle;
A second vertical shifter having one end connected to the other end of the first vertical switcher by a movable rotary shaft and the other end connected to the other end of the base line by a rotary shaft; And
And fixing means formed on the mutually contacting surfaces of the first vertical switcher and the second vertical switcher so that the first vertical switcher and the second vertical switch are mutually coupled,
The base-
And a first receiving end portion provided so as to form an end where the overlapping portion of the second vertical variable portion is rotated by the thickness of the second vertical variable portion,
Preferably,
And a second receiving end portion provided so as to form an end portion where the overlapping portion of the first vertical variable portion is rotated by the thickness of the first vertical variable portion,
The first vertical variable and the second vertical variable,
And a moving slit formed along the longitudinal direction at one end of the movable rotary shaft to which the movable rotary shaft is coupled and provided with a length that is 1/2 of the length of the first vertical polarizer or the second vertical polarizer,
The mobile rotary shaft
And a second slider which is provided to penetrate through the moving slit of the first vertical slider and the second vertical slider,
Wherein,
And fixing grooves formed on both upper surfaces of both ends of the moving slit of the second vertical shifter and formed to be engaged with the fixing protrusions, A folding triangle featuring. delete delete delete

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