JP2006003158A - Magnifying lens cover-equipped triangular scale - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a magnifying lens-equipped triangular scale allowing reading of graduations difficult to read by a naked eye heretofore, and capable of more minutely measuring an accurate distance, by installing a magnifying lens to a triangular scale. <P>SOLUTION: This magnifying lens cover-equipped triangular scale is provided with: the nearly triangle pole-like triangular scale having three measurement faces each having upper and lower sides described with the graduations of different scale ratios, each formed with a recessed part parallel to the upper and lower sides in the center; and a nearly V-shaped magnifying lens cover having two projecting parts capable of being inserted in the recessed part of the triangular scale, and two magnifying lenses each having a different magnifying power and a perpendicular part. A rectangular stopper is provided from the upper face to the lower face of the measurement face in one end of one face among the three measurement faces. The triangular scale is provided with a rectangular small stopper in one end of the recessed part of one face among the three measurement faces such that the recessed part is spanned with a bridge, and a protrusion is formed in one end of the projecting part of the magnifying lens cover such that the protrusion is engaged with the stopper provided in the recessed part of the triangular scale. The magnifying lens cover-equipped triangular scale is provided with a nearly V-shaped magnifying lens cover having one projecting part capable of being inserted in the recessed part of the triangular scale, a perpendicular part and an engagement face. The magnifying lens cover-equipped triangular scale shows 1:300, 1:400, 1:500, and 1:600. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a triangular scale that measures the actual size on a map or the like.

  The conventional triangular scale measures the actual size using a triangular scale of the same scale on a scaled map.

  However, when measuring the actual size using a 1/250 m or 1/500 m memory on a conventional triangular scale, the memory is too small to accurately measure the distance.

  In addition, when the memory is small, the distance represented by one scale is too large to be accurate.

  Therefore, the present invention has an object to provide a triangular scale with a magnifying lens that can read a scale that has been difficult to read with the naked eye by attaching a magnifying lens to the triangular scale, and can measure a finer and more accurate distance. It is what.

  In order to solve the above-mentioned problem, the present invention provides a substantially triangular prism-shaped triangular scale having three pieces of measurement surfaces in which memories having different color scales are written on the upper and lower sides and a recess is provided in the center in parallel with the upper and lower sides. And a substantially V-shaped magnifying lens cover comprising two magnifying lenses that can be inserted into a concave part of a triangular scale and two magnifying lenses having different vertical parts with different magnifications. A triangular scale with a cover, a triangular scale with a magnifying lens cover, and a three-surface measurement, characterized in that a rectangular stopper is provided at one end of one of the three measurement surfaces from the upper surface to the lower surface of the measurement surface. The convex of the magnifying lens cover is locked to a triangular scale provided at one end of the concave portion of one of the surfaces so as to bridge a rectangular stopper on the concave portion and the stopper provided on the concave portion of the triangular scale. One end of the part A substantially V-shaped magnifying lens cover having a triangular scale with a magnifying lens cover, provided with a protrusion, and one convex part, a vertical part, and a locking surface that can be inserted into a concave part of the triangular scale A triangular scale with a magnifying lens, and a triangular scale with a magnifying lens cover, characterized in that the number of scales per 1 cm of the measurement surface indicating 1/300 is 30 and one scale is 10 cm. , A triangular scale with a magnifying lens cover, characterized in that the number of scales per 1 cm of the measurement surface showing 1/400 is 10 cm, and the scale per 1 cm of the measurement surface showing 1/500 A triangular scale with a magnifying lens cover characterized in that the number is 50 and one scale indicates 10 cm, and the number of scales per 1 cm of the measurement surface indicating 1/600 is 30. And one scale is characterized as the triangular scale with larger lens cover configured to indicate a 20 cm.

  The triangular scale with a magnifying lens cover according to the present invention has a magnifying lens so that an accurate distance can be measured even if the memory has a fine measuring surface. It can be used without obstructing even if it is written with etc.

  Further, by making the scales of the scales written on the measurement surface finer, a more accurate distance can be measured on the map.

  The objective of a triangular scale that accurately reads the memory, which was difficult to measure with the naked eye, and does not interfere with the work, was realized by attaching a magnifying lens cover with a vertical part.

  FIG. 1 is a perspective view of a triangular scale with a magnifying lens cover according to the present invention, and FIG. 2 is a cross-sectional view of the triangular scale with a magnifying lens cover.

  As shown in FIG. 1, a triangular scale 1 with a magnifying lens cover according to the present invention includes a triangular scale 2 and a magnifying lens cover 3. The triangular scale 2 has a substantially triangular prism shape, and memories 2c, 2c, 2c,... With different scales are described on the upper and lower sides of each measurement surface 2a, 2a, 2a.

  As shown in FIG. 1 and FIG. 2, concave portions 2b, 2b, and 2b are provided in the center of the measurement surfaces 2a, 2a, and 2a in parallel with the upper and lower sides, and the measurement surfaces are recessed from the upper and lower sides to the central concave portions 2b and 2b. 2b.

  The magnifying lens cover 3 comprises a transparent magnifying lens cover main body 3a having a substantially V-shape, and convex portions 3b and 3b corresponding to the concave portions 2b of the triangular scale 2 are provided on the inner side. As shown in FIGS. 1 and 2, the convex portions 3 b and 3 b of the magnifying lens cover can be slid from the lateral direction onto the concave portions 2 b and 2 b of the triangular scale 2.

  As shown in FIG. 2, both lower ends of the magnifying lens cover body 3a are a 2.0x magnifying lens 3c and a 3.5x magnifying lens 3e. The side surfaces of the lens 3e are vertical portions 3d and 3d. The magnification of the magnifying lens set to 2.0 times and 3.5 times is not limited to this.

  The convex portions 3b and 3b provided on the inner side of the magnifying lens cover main body 3a can be slid and inserted into any of the concave portions 2b, 2b and 2b of the triangular scale 2. For this reason, the magnifying lens cover 3 can be put on any measurement surface 2a, 2a, 2a of the triangular scale 2, and the memories 2c, 2c, 2c,.

  FIG. 3 is a perspective view of a second embodiment of a triangular scale with a magnifying lens cover according to the present invention. As shown in FIG. 3, the triangular scale 1 a with a magnifying lens cover according to the present invention includes a triangular scale 2 and a magnifying lens cover 3, and the magnifying lens cover 3 is the same as the magnifying lens cover 3 of the first embodiment.

  The triangular scale 2 has substantially the same shape as the triangular scale 2 of the first embodiment shown in FIGS. 1 and 2, but one end of one of the three measurement surfaces is on the lower surface from the upper surface of the measurement surface. A rectangular stopper 2d is provided, and the stopper 2d restricts the removal in one direction by sliding the triangular scale 2 and the magnifying lens cover 3.

  FIG. 4 is a perspective view of a third embodiment of the triangular scale with a magnifying lens cover according to the present invention, and FIG. 5 is an enlarged view of the third embodiment of the triangular scale with a magnifying lens cover. As shown in FIGS. 4 and 5, the triangular scale 1 b with a magnifying lens cover according to the present invention includes a triangular scale 2 and a magnifying lens cover 3.

  The triangular scale 2 has substantially the same shape as the triangular scale 2 of the first and second embodiments shown in FIGS. 1 to 4, but as shown in FIG. 5, one of the three measurement surfaces. A rectangular stopper 2e is provided at one end of the concave portion of the surface so as to bridge the concave portion 2b.

  The magnifying lens cover 3 has substantially the same shape as the magnifying lens cover 3 of the first and second embodiments shown in FIGS. 1 to 4, but the convex portion of the magnifying lens cover 3 as shown in FIG. A projection 3f is provided at one end of the projection.

  A protrusion 3f of the magnifying lens cover 3 is inserted and fixed in a cavity provided between the concave portion 2b of the triangular scale 2 and the stopper 2e. With this structure, the magnifying lens cover 3 and the triangular scale 2 are firmly fixed and do not leave without permission.

  FIG. 6 is a sectional view of a fourth embodiment of a triangular scale with a magnifying lens cover according to the present invention. As shown in FIG. 6, the triangular scale 1 c with a magnifying lens cover according to the present invention includes a triangular scale 2 and a magnifying lens cover 3. The triangular scale 2 of the triangular scale 1c with the magnifying lens cover has the same shape as the triangular scale 2 of the first embodiment, the second embodiment, or the third embodiment.

  The magnifying lens cover 3 is composed of a single convex portion 3b that can be inserted into the concave portion 2b of the triangular scale 2, a vertical portion 3d, and a substantially V-shaped magnifying lens cover body 3a having a locking surface 3g. The surface on which the magnifying lens of the magnifying lens cover 3 of Example 1, Example 2 or Example 3 is provided is one.

  FIG. 7 is an enlarged view showing a measurement surface of each scale ratio of the triangular scale with a magnifying lens cover according to the present invention. It has the measurement surfaces 4, 5, 6, and 7 shown in FIG. 7 of the triangular scales 1, 1a, 1b, and 1c with the magnifying lens cover shown in the first to fourth embodiments.

  As shown in FIG. 7, the scale marked on the measurement surface 4a of the triangular scale 4 has a scale ratio 4c of 1/300, and the actual scale of 1cm8 is 30 scales, and the scale is 10cm. This scale corresponds to a finer distance than when 15 scales were hit within 1 cm and one scale represented 20 cm. In addition, the code | symbol 4b has shown the recessed part.

  The scale written on the measurement surface 5a of the triangular scale 5 has a scale ratio 5c of 1/400, and 40 scales are placed on the actual 1 cm8, and one scale represents 10 cm. This scale corresponds to a finer distance than when 20 scales were hit within 1 cm and one scale represented 20 cm. In addition, the code | symbol 5c has shown the recessed part.

  The scale marked on the measurement surface 6a of the triangular scale 6 has a scale ratio 6c of 1/500, 50 scales are placed on the actual 1 cm8, and one scale represents 10 cm. This scale corresponds to a finer distance than when 25 scales were hit within 1 cm and one scale represented 20 cm. In addition, the code | symbol 6c has shown the recessed part.

  The scale marked on the measurement surface 7a of the triangular scale 7 has a scale ratio 7c of 1/600, 30 scales are placed on the actual 1 cm8, and one scale represents 20 cm. This scale corresponds to a finer distance than when 12 scales were hit within 1 cm and one scale represented 50 cm. In addition, the code | symbol 7c has shown the recessed part.

It is a perspective view of the triangular scale with a magnifying lens cover which is the present invention. It is sectional drawing of the triangular scale with a magnifying lens cover which is this invention. It is a perspective view of 2nd Example of the triangular scale with a magnifying lens cover which is this invention. It is a perspective view of 3rd Example of the triangular scale with a magnifying lens cover which is this invention. It is an enlarged view of 3rd Example of the triangular scale with a magnifying lens cover which is this invention. It is sectional drawing of 4th Example of the triangular scale with a magnifying lens cover which is this invention. It is the enlarged view which showed the measurement surface of each scale of the triangular scale with a magnifying lens cover which is this invention.

Explanation of symbols

1 Triangular scale with magnifying lens cover 1a Triangular scale with magnifying lens cover 1b Triangular scale with magnifying lens cover 1c Triangular scale with magnifying lens cover 2 Triangular scale 2a Measurement surface 2b Recess 2c Memory 2d Stopper 2e Stopper 3 Magnifying lens cover 3a Magnifying lens cover Main body 3b Convex part 3c 2.0x magnification lens 3d Vertical part 3e 3.5x magnification lens 3f Protrusion 3g Locking surface 4 Triangle scale 4a Measurement surface 4b Recess 4c Scale 5 Triangular scale 5a Measurement surface 5b Concave 5c Scale 6 Triangular scale 6a Measurement surface 6b Recess 6c Scale 7 Triangular scale 7a Measurement surface 7b Recess 7c Scale 8 Actual 1cm

Claims (8)

  A triangular scale having a substantially triangular prism shape having three measurement surfaces in which memories with different color scales are written on the upper and lower sides and a recess is provided in the center in parallel with the upper and lower sides, and can be inserted into the recess of the triangle scale 2 A triangular scale with a magnifying lens cover, comprising a convex part of a book and a substantially V-shaped magnifying lens cover provided with two magnifying lenses having different vertical parts and different magnifications.   2. The triangular scale with a magnifying lens according to claim 1, wherein a rectangular stopper is provided at one end of one of the three measurement surfaces from the upper surface to the lower surface of the measurement surface.   A rectangular small piece stopper is attached to one end of the concave part of one of the three measurement surfaces, and the triangular scale provided so as to bridge the concave part and the stopper provided in the concave part of the triangular scale are enlarged to be engaged. 3. A triangular scale with a magnifying lens according to claim 1, wherein a projection is provided at one end of the convex portion of the lens.   The substantially V-shaped magnifying lens cover having one convex portion, a vertical portion, and a locking surface that can be inserted into the concave portion of the triangular scale is provided. 3. A triangular scale with a magnifying lens according to 3.   5. With a magnifying lens cover according to claim 1, wherein the number of scales per 1 cm of the measurement surface showing 1/300 is 30 and one scale is 10 cm. Triangular scale.   5. With a magnifying lens cover according to claim 1, wherein the number of scales per 1 cm of the measurement surface indicating 1/400 is 40 and each scale is 10 cm. Triangular scale.   5. With a magnifying lens cover according to claim 1, wherein the number of scales per 1 cm of the measurement surface indicating 1/500 is 50 and one scale is 10 cm. Triangular scale.   5. With a magnifying lens cover according to claim 1, 2, 3, or 4, wherein the number of scales per 1 cm of the measurement surface indicating 1/600 is 30 and one scale is 20 cm. Triangular scale.

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