JP3247983U - Ruler and writing set - Google Patents

Abstract

[Problem] To provide a ruler that can be held properly with a simple structure. [Solution] A ruler 20 having a longitudinal direction dL, a width direction dW perpendicular to the longitudinal direction dL, and a pair of longitudinal edges 22 extending in the longitudinal direction dL, and a protruding portion 30 provided at one end 20a of the longitudinal direction dL and protruding in the width direction dW from the longitudinal edge 22. The protruding portion 30 includes two protruding pieces 32 that face each other in the width direction dW. [Selected Figure] Figure 1

Description

Application has been made for application of Article 30, Paragraph 2 of the Patent Act as applied mutatis mutandis pursuant to Article 11 of the Utility Model Act Publication 1 1. Exhibition date: April 3, 2024 2. Exhibition name: PILOT EXPO 2024 SPRING 3. Venue: Pilot Corporation Head Office, 2-6-21 Kyobashi, Chuo-ku, Tokyo 4. Disclosed by: Pilot Corporation Publication 2 1. Exhibition date: April 5, 2024 2. Exhibition name: PILOT EXPO 2024 SPRING 3. Venue: Pilot Corporation Western Office, 2-4-26 Mibeshima, Nishiyodogawa-ku, Osaka City, Osaka Prefecture 4. Disclosed by: Pilot Corporation

This invention relates to a ruler and writing set.

When drawing a line using a ruler, you usually hold the ruler in one hand and draw the line along the ruler with the other hand.

Utility Model Publication No. 63-121591

When using a ruler to draw a line, if the ruler is not held properly, the ruler may shift position while drawing the line, making it impossible to draw the line properly.

This invention was made with these points in mind, and aims to provide a simple structure that allows a ruler to be held properly.

The ruler of this invention is:
[1]
The longitudinal direction,
A width direction perpendicular to the longitudinal direction;
A ruler having a pair of longitudinal edges extending in the longitudinal direction,
A ruler having a protrusion provided at one end in the longitudinal direction and protruding in the width direction from the longitudinal edge.

The ruler of this invention is:
[2]
The protrusion is
The ruler according to [1], wherein the protrusion includes two protruding pieces facing each other in the width direction.

The ruler of this invention is:
[3]
The ruler according to [2] has scales provided along each of the pair of longitudinal edges.

The ruler of this invention is:
[4]
The ruler according to any one of [1] to [3], wherein the contour of the protrusion in a planar view includes a curved portion that is convex outward.

The ruler of this invention is:
[5]
The ruler according to any one of [1] to [4], wherein at least the longitudinal edges and the protrusions have chamfered portions.

The ruler of this invention is:
[6]
The ruler according to any one of [1] to [5] has an indication mark located on an extension line of the longitudinal edge.

The ruler of this invention is:
[7]
The ruler according to [6], wherein at least a portion of the indication mark is located within the protrusion.

The writing set of this invention is
[8]
[1] to [7], and a ruler according to any one of the above.
A writing set comprising a writing instrument.

The writing set of this invention is
[9]
The writing instrument is
Two support pieces;
a tip member located between the two support pieces;
The writing set described in [8], wherein the amount of protrusion in the width direction from the longitudinal end edge of the protrusion is 0.8 to 1.2 times the radial thickness of at least one of the support pieces.

This invention allows the ruler to be held properly with a simple structure.

FIG. 1 is a diagram showing an embodiment of the present invention, and is a plan view showing an example of a ruler. FIG. 2 is a perspective view of the ruler of FIG. FIG. 3 is a view of the ruler of FIG. 1 taken along its longitudinal direction. FIG. 4 is an external view showing an example of a writing instrument according to an embodiment of the present invention. FIG. 5 is a diagram for explaining a writing method using an example of a writing set in one embodiment of the present invention.

One embodiment of the present invention will be described below with reference to the drawings. Note that in the drawings attached to this specification, the scale and aspect ratios have been appropriately altered and exaggerated from those of the actual product for the convenience of illustration and ease of understanding.

In addition, terms used in this specification that specify shapes, geometric conditions, and the degree of those conditions, such as "parallel," "orthogonal," and "same," as well as values of lengths and angles, are to be interpreted without being bound by strict meanings, but rather to include the range in which similar functions can be expected.

Fig. 1 is a diagram showing one embodiment of the present invention, and is a plan view showing an example of a ruler 20. Fig. 2 is a perspective view showing the ruler 20. Fig. 3 is a diagram showing the ruler 20 as viewed along the longitudinal direction _dL . Note that in Fig. 2, the scale 26 and the indication marks 46 are omitted.

In this specification, the direction in which the ruler 20 extends is the longitudinal direction _dL , the direction perpendicular to the longitudinal direction _dL is the width direction _dW , and the direction perpendicular to the longitudinal direction _dL and the width direction _dW is the thickness direction _dT . Of the dimensions of the ruler 20 along the longitudinal direction _dL , the dimensions of the ruler 20 along the width direction _dW , and the dimensions of the ruler 20 along the thickness direction _dT , the dimensions of the ruler 20 along the longitudinal direction _dL are the largest, and the dimensions of the ruler 20 along the thickness direction _dT are the smallest. In this specification, "planar view" means viewing the ruler 20 along the thickness direction _dT .

The ruler 20 of this embodiment extends along the longitudinal direction _dL . The ruler 20 has a pair of longitudinal edges 22 extending in the longitudinal direction _dL and a pair of widthwise edges 24 extending in the widthwise direction _dW . Each longitudinal edge 22 extends linearly along the longitudinal direction _dL . Each widthwise edge 24 extends linearly along the widthwise direction _dW . The pair of longitudinal edges 22 extend parallel to each other. The pair of widthwise edges 24 extend parallel to each other. The pair of longitudinal edges 22 face each other in the widthwise direction _dW . The pair of widthwise edges 24 face each other in the longitudinal direction _dL . Therefore, the ruler 20 shown in FIG. 1 has a generally rectangular outline in a plan view.

The longitudinal edge 22 is intended to act as a guide for the tip of a writing implement when drawing a line using the ruler 20. Therefore, when drawing a line using the ruler 20, the user moves the tip of the pen along the longitudinal edge 22 while keeping the tip in contact with the longitudinal edge 22. If the longitudinal edge 22 extends in a straight line, a straight line can be drawn using the ruler 20 by moving the tip of the pen along the longitudinal edge 22.

The ruler 20 has scales 26 provided along the longitudinal edges 22. The scales 26 have the function of displaying the length along the longitudinal edges 22. In particular, in the example shown in FIG. 1, the ruler 20 has scales 26 provided along each of the pair of longitudinal edges 22. This allows the length of each of the pair of longitudinal edges 22 to be measured. The scales 26 provided along one longitudinal edge 22 and the scales 26 provided along the other longitudinal edge 22 may be the same or different from each other. In this embodiment, the scales 26 are arranged starting from the end of the protruding piece 32 described later.

A protrusion 30 is provided at one end 20a in the longitudinal direction _dL of the ruler 20. The protrusion 30 protrudes from the longitudinal end edge 22 in the width direction _dW . The protrusion 30 includes a protruding piece 32. In particular, in the example shown in Figures 1 to 3, the protrusion 30 includes two protruding pieces 32 that face each other in the width direction _dW .

When drawing a line using the ruler 20, the user holds the ruler 20 with one hand and draws a line along the longitudinal edge 22 with the other hand. If the ruler is not held properly, the ruler may shift position during drawing, making it impossible to draw the line properly. In this embodiment, the ruler 20 has a protrusion 30 provided at one end 20a in the longitudinal direction d _L , so that the area of the area that the user can hold at one end 20a of the ruler 20 is large. Therefore, when drawing a line using the ruler 20, the user can hold the ruler 20 properly by holding the area including the protrusion 30 of the ruler 20 with one hand.

In the example shown in FIG. 1, the protrusion 30 (protruding piece 32) has a rounded contour in plan view. Specifically, the contour of the protrusion 30 (protruding piece 32) in plan view includes a curved portion 34 that is convex outward. The curved portion 34 may include a portion that has an arc shape in plan view.

The protrusion 30 has a curved portion 34, which can prevent the user's fingers from being hurt or injured when they come into contact with the protrusion 30. In the example shown in Fig. 1, a curved portion 34 is also provided at the corner of the other end 20b in the longitudinal direction _dL of the ruler 20. That is, in the example shown, curved portions 34 are provided at all corners of the ruler 20 that are convex outward. In this case, it is possible to more effectively prevent the fingers of the user of the ruler 20 from being hurt or injured.

By positioning the protruding part 30 on the left side as seen by the user, it becomes easier for a right-handed user to draw a line using the ruler 20. In this embodiment, since the protruding part 30 includes two protruding pieces 32 that face each other in the width direction _dW , when the ruler 20 is rotated 180 degrees in a plane, the protruding part 30 can be positioned on the right side as seen by the user. This has the advantage that it becomes easier for a left-handed user to draw a line using the ruler 20.

3 is a view of the ruler 20 viewed from the other end 20b side along the longitudinal direction _dL . In this embodiment, at least the longitudinal edges 22 and the protruding portions 30 have chamfered portions 44. In the illustrated example, the longitudinal edges 22 and the protruding portions 30 are provided with chamfered portions 44, but the widthwise edges 24 are not provided with chamfered portions 44. However, this is not limited thereto, and the widthwise edges 24 may also be provided with chamfered portions 44.

The chamfered portion 44 chamfers the contour of the surface that the user touches with his/her fingers when the ruler 20 is pressed against the writing surface. This helps prevent pain or injury to the user's fingers when the ruler 20 is pressed against the writing surface.

Furthermore, at the longitudinal end edges 22, the chamfered portions 44 are chamfered with planes that are inclined with respect to both the width direction _dW and the thickness direction _dT . In this case, when the writing implement is inclined with respect to the writing surface, the pen tip is appropriately guided by the chamfered portions 44. In particular, when the writing implement is the writing implement 50 described below, the support piece 56 of the writing implement 50 is appropriately guided by the chamfered portions 44. Therefore, lines can be drawn stably using the ruler 20.

In the example shown in FIG. 1, the ruler 20 has an indication mark 46. The indication mark 46 has the function of guiding the user's line of sight to the position of the starting point of the line to be drawn. For this reason, the indication mark 46 is arranged on an extension line of the longitudinal edge 22. Therefore, in the illustrated example, the position of the longitudinal edge 22 is easier to recognize. In the illustrated example, the indication mark 46 has a triangular outline in a plan view, and one apex of this triangle is directed toward the edge on the one end 20a side of the longitudinal edge 22. Note that the specific shape and arrangement of the indication mark 46 are not limited to this.

The indicator mark 46 is provided at one end 20a of the ruler 20. In the example shown in FIG. 1, the ruler 20 has two indicator marks 46. One indicator mark 46 is provided corresponding to one longitudinal edge 22, and the other indicator mark 46 is provided corresponding to the other longitudinal edge 22.

At least a portion of the indication mark 46 may be located within the protrusion 30. In this case, the indication mark 46 can be positioned by effectively utilizing the space within the protrusion 30.

The material constituting the ruler 20 is preferably a soft material. In this case, the ruler 20 has flexibility, so that the ruler 20 can be properly fitted to a curved surface such as the page of an open book. The material constituting the ruler 20 may be, for example, a soft resin. As such a resin, for example, soft polyvinyl chloride that does not contain phthalate may be used. The average degree of polymerization of the material constituting the ruler 20 may be, for example, about 1000.

The hardness of the ruler 20 is preferably A80 or more and A90 or less, measured using a type A indenter in the durometer hardness test method specified in JIS K 7215 (Shore A hardness). When the hardness of the ruler 20 is A80 or more, it is possible to prevent the shape of the ruler 20 near the gate from curving during molding. It is also possible to prevent flow marks and cloudiness from occurring on the surface of the ruler 20. In other words, when the hardness of the ruler 20 is A80 or more, the ruler 20 can be molded well. When the hardness of the ruler 20 is A90 or less, the ruler 20 can be properly fitted to the pages of a thick book whose pages are significantly curved when opened.

Next, the writing set 10 and writing implement 50 of this embodiment will be described with reference to Figures 4 and 5. The writing set 10 of this embodiment includes the ruler 20 and writing implement 50 described above. Figure 4 is an external view showing an example of the writing implement 50. Figure 5 is a diagram for explaining the writing method with the example of the writing set 10.

In this specification, the direction in which the central axis A of the writing instrument 50 extends (longitudinal direction) is referred to as the axial direction da, the direction perpendicular to the axial direction da is referred to as the radial direction, and the direction along the circumference around the central axis A is referred to as the circumferential direction. In addition, along the axial direction da, the side approaching the writing surface such as a paper surface when writing is referred to as the front, and the side moving away from the writing surface is referred to as the rear. In addition, along the radial direction, the side approaching the central axis A is referred to as the inside or inner side, and the side moving away from the central axis A is referred to as the outside or outer side.

The writing instrument 50 is, for example, a marking pen (marker), a felt tip pen, or the like. In this embodiment, an example in which the writing instrument 50 is a marking pen will be described. The writing instrument 50 includes a barrel 52, a holding member 54, and a tip member 58.

The barrel 52 extends in the axial direction da along the central axis A of the writing instrument 50. Therefore, the central axis of the barrel 52 coincides with the central axis A of the writing instrument 50. The barrel 52 has a generally cylindrical shape. The barrel 52 is intended to be held by the user's fingers when writing with the writing instrument 50. The barrel 52 may be formed by combining multiple members. A cap member that covers the tip member 58 and prevents the ink in the tip member 58 from drying out may be attached to the barrel 52 or the holding member 54. An ink reservoir (not shown) for storing ink is housed inside the barrel 52.

The tip member 58 is a member that forms handwriting on a writing surface such as a paper surface. The tip member 58 is formed of a material through which ink can flow in the axial direction da. For example, the tip member 58 may be made of a porous body having open bubbles. Alternatively, the tip member 58 may be made of a fiber bundle, a hair bundle, felt, a resin having capillary passages extending in the axial direction da, or the like.

The holding member 54 is a member that holds the tip member 58. The holding member 54 is attached to the front end of the barrel 52. The holding member 54 has a generally cylindrical shape. The central axis of the holding member 54 coincides with the central axis A of the writing instrument 50. The holding member 54 is formed, for example, by injection molding of a synthetic resin. Examples of synthetic resins that form the holding member 54 include polypropylene, polycarbonate, polyethylene, polyacetal, polyethylene terephthalate, elastomer, and acrylonitrile-butadiene-styrene (ABS) resin.

The holding member 54 has a support piece 56. The support piece 56 is formed to protrude forward from the main body of the holding member 54. In this embodiment, the holding member 54 has two support pieces 56, and the tip of the tip member 58 is disposed between the two support pieces 56. The support piece 56 is intended to come into contact with a writing surface such as a paper surface when writing with the writing instrument 50. The front end of the support piece 56 is located behind the front end of the tip member 58. In this embodiment, the tip of the tip member 58 has flexibility that allows it to bend and deform in the lateral direction (the direction intersecting the central axis A) due to writing pressure. When writing, the support piece 56 comes into contact with the writing surface, so that the amount of bending of the tip of the tip member 58 can be controlled within a predetermined range. In addition, by moving the writing instrument 50 while the two support pieces 56 are in contact with the writing surface, the tip member 58 can form handwriting with a constant amount of bending. Therefore, it becomes possible to form stable handwriting.

When drawing a line using the writing set 10 of this embodiment, one support piece 56 of the writing instrument 50 is kept in contact with the longitudinal edge 22 of the ruler 20, and the writing instrument 50 is moved along the longitudinal edge 22. This allows the writing instrument 50 to be used to draw a line along the longitudinal edge 22.

In this embodiment, the amount of protrusion B in the width direction _dW from the longitudinal end edge 22 of the protruding portion 30 of the ruler 20 is approximately equal to the radial thickness C of at least one support piece 56 of the writing instrument 50. Specifically, the amount of protrusion B in the width direction _dW from the longitudinal end edge 22 of the protruding portion 30 of the ruler 20 is 0.8 to 1.2 times the radial thickness C of at least one support piece 56 of the writing instrument 50.

When a line is drawn along the longitudinal edge 22 of the ruler 20 using a writing implement 50 having a support piece 56, as shown in FIG. 5, the line formed on the writing surface is located at a position spaced from the longitudinal edge 22 by the thickness of the support piece 56. At this time, if the protrusion amount B of the protruding portion 30 of the ruler 20 is approximately equal to the thickness C of the support piece 56 of the writing implement 50, the height of the lower end of the written line from the longitudinal edge 22 will approximately match the height of the top of the protruding portion 30 from the longitudinal edge 22. Therefore, by aligning the top of the protruding portion 30 with the bottom end of the place where the line is to be drawn, the user can hold the ruler 20 and use the writing implement 50 to draw a line along the longitudinal edge 22, thereby drawing a line with precision at the desired place.

In the writing set 10 of this embodiment, the color of the ink contained in the writing instrument 50 and the color of the ruler 20 may be complementary to each other. For example, the color of the ink contained in the writing instrument 50 may be a greenish color, and the color of the ruler 20 may be a reddish colored transparent color. Also, the color of the ink contained in the writing instrument 50 may be a reddish color, and the color of the ruler 20 may be a greenish colored transparent color. Also, the relationship between the color of the ink contained in the writing instrument 50 and the color of the ruler 20 may be any color as long as they are complementary to each other, and is not limited to the combination of greenish and redish colors.

With this writing set 10, when the ruler 20 is placed on the handwriting made by the writing implement 50, the handwriting made by the writing implement 50 appears black. In this case, if handwriting is made on a character string on the writing surface with the writing implement 50 and the ruler 20 is placed on this handwriting, the character string on the writing surface appears to be filled in black, making it difficult for the observer to distinguish the character string on the writing surface. By using the ruler 20 in this way, the ruler 20 of this embodiment can function as a sheet member to assist in memorization tasks when studying.

When the color of the ink contained in the writing implement 50 and the color of the ruler 20 are complementary to each other and the material that composes the ruler 20 is soft, the ruler 20 has flexibility, so that it can be properly adjusted to curved surfaces such as the pages of an open book, and can also be used as a coloring sheet for memorization tasks during study. In this way, the ruler 20 of this embodiment functions both as a ruler and as a coloring sheet for memorization tasks.

The ruler 20 of this embodiment has a longitudinal direction _dL , a width _{direction dW} perpendicular to the longitudinal direction dL, and a pair of longitudinal edges 22 extending in the longitudinal direction _dL . The ruler 20 has a protrusion 30 provided at one end 20a of the longitudinal direction _dL and protruding from the longitudinal edges 22 in the width direction _dW .

According to this type of ruler 20, the protrusion 30 is provided at one end 20a in the longitudinal direction d _L , which increases the area of the area that can be held by a user at one end 20a of the ruler 20. Therefore, when a user uses the ruler 20 to draw a line, the user can hold the ruler 20 appropriately by holding the area including the protrusion 30 of the ruler 20 with one hand.

In the ruler 20 of this embodiment, the protrusion 30 includes two protruding pieces 32 that face each other in the width direction _dW .

According to this ruler 20, the provision of two protruding pieces 32 allows the user to hold the ruler 20 more appropriately. In addition, since the protruding portion 30 includes two protruding pieces 32 that face each other in the width direction _dW , when the ruler 20 is rotated 180 degrees in a plane, the protruding portion 30 can be positioned on the right side as seen by the user. This has the advantage that it is easier for left-handed users to draw lines using the ruler 20.

The ruler 20 of this embodiment has scales 26 along each of a pair of longitudinal edges 22.

With this type of ruler 20, even when the ruler 20 is rotated 180 degrees in a plane, the scale 26 remains at the top. This makes it easier for left-handed users to draw lines using the ruler 20.

In this embodiment, the ruler 20 has a contour of the protrusion 30 in a plan view that includes a curved portion 34 that is convex outward.

This type of ruler 20 can prevent the user's fingers from being hurt or injured when they come into contact with the protruding portion 30.

In this embodiment of the ruler 20, at least the longitudinal edge 22 and the protrusion 30 have a chamfered portion 44.

This type of ruler 20 can prevent pain or injury to the user's fingers when the ruler 20 is pressed against a writing surface.

The ruler 20 of this embodiment has an indicator mark 46 located on an extension of the longitudinal edge 22.

This type of ruler 20 makes it easier for the user to recognize the position of the longitudinal edge 22. This makes it possible to guide the user's line of sight to the starting point of the line to be drawn.

In this embodiment of the ruler 20, at least a portion of the indication mark 46 is located within the protrusion 30.

With this type of ruler 20, the space within the protruding portion 30 can be effectively utilized to position the indication mark 46.

The writing set 10 of this embodiment includes a ruler 20 according to any one of claims 1 to 7,
A writing instrument 50 is provided.

With this writing set 10, you can use the writing implement 50 to draw lines along the ruler 20.

In the writing set 10 of this embodiment, the writing instrument 50 comprises two support pieces 56 and a tip member 58 located between the two support pieces 56, and the amount of protrusion B in the width direction _dW from the longitudinal end edge 22 of the protrusion 30 is 0.8 to 1.2 times the radial thickness C of at least one of the support pieces 56.

With this writing set 10, the height of the bottom of the written line from the longitudinal edge 22 is roughly the same as the height of the top of the protrusion 30 from the longitudinal edge 22. Therefore, the user can hold the ruler 20 with the top of the protrusion 30 aligned with the bottom of the place where they want to draw a line, and use the writing implement 50 to draw a line along the longitudinal edge 22, making it possible to draw a line precisely wherever they want.

10 Writing set 20 Ruler 20a One end 20b Other end 22 Longitudinal edge 24 Widthwise edge 26 Scale 30 Protruding portion 32 Protruding piece 34 Curved portion 44 Chamfered portion 46 Indication mark 50 Writing implement 52 Shaft tube 54 Holding member 56 Support piece 58 Tip member

Claims (9)

The longitudinal direction,
A width direction perpendicular to the longitudinal direction;
A ruler having a pair of longitudinal edges extending in the longitudinal direction,
A ruler having a protrusion provided at one end in the longitudinal direction and protruding in the width direction from the longitudinal edge. The ruler according to claim 1, wherein the protrusion includes two protruding pieces that face each other in the width direction. The ruler of claim 2, having scales along each of the pair of longitudinal edges. The ruler according to claim 1, wherein the contour of the protrusion in plan view includes a curved portion that is convex outward. The ruler of claim 1, wherein at least the longitudinal edges and the protrusions have chamfers. The ruler of claim 1, having an indicator mark located on an extension of the longitudinal edge. The ruler of claim 6, wherein at least a portion of the indication mark is located within the protrusion. A ruler according to any one of claims 1 to 7;
A writing set comprising a writing implement. The writing instrument is
Two support pieces;
a tip member located between the two support pieces;
The writing set according to claim 8 , wherein the amount of protrusion in the width direction from the longitudinal end edge of the protruding portion is 0.8 to 1.2 times the radial thickness of at least one of the support pieces.