JPH0721395U - Pattern drawer - Google Patents

Abstract

(57) [Abstract] [Purpose] It is intended to reduce the cost of parts of a gear rotating body and to enable all crescent moon plates to be transported by being coupled and fitted into a base gear hole. [Structure] A plurality of circles capable of meshing with a flat base 1 and the circular gear 4a having a plurality of writing end insertion holes 15, 16 and 17 formed on the disc surface at different distances from the center of the disc. Plate gear 5,
6, 7 and a gear rotator 10 for individually meshing and rotating the respective disc gears so as to rotate and revolve along the circular gear 4a.
In the pattern drawing machine comprising:
Has a C-shaped notch 11a for rotatably fitting and holding the rotary operation part B and the first disc gear 5 having the maximum diameter.
Has a C-shaped notch 12a that rotatably fits and holds a first crescent moon plate 11 that is rotatably circumferentially fitted to and a second disk gear 6 that has a diameter smaller than the first disk gear 5. Shi 1 Crescent Plate 11
The second crescent plate 12 is positioned in the C-shaped notch 11a and is fitted and locked so as to be integrally rotatable.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pattern drawing device for drawing a geometric pattern on drawing paper.

[0002]

[Prior art]

 Conventionally, it has a flat plate-shaped base that can be placed face-to-face on drawing paper with a large gear hole in the center and gear teeth that can mesh with the circular gear of this base gear hole on the outer circumference A plurality of disc gears having a smaller diameter and a different diameter than the gear holes having a plurality of writing end insertion holes formed at different distances from the center of the disc, and a disc having a desired diameter among the disc gears. A pattern drawing machine is known which is provided with a gear rotator which holds a gear rotatably and meshes the disc gear so as to rotate and revolve along the circular gear of the base.

[0003]

[Problems to be solved by the device]

 The conventional pattern drawing machine has three disk gears for pattern drawing (a large-diameter first disk gear, a medium-diameter second disk gear, and a small-diameter third disk gear). (3 pieces), the gear rotating body that individually rotates each disc gear has a C-shaped notch portion that rotatably fits and holds the rotation operating portion and the first disc gear. The first crescent plate rotatably fitted circumferentially in the gear hole of the base, and the C-shaped notch for rotatably fitting and holding the rotation operating portion and the second disc gear. It has a second crescent moon plate that is rotatably fitted in a hole, and a C-shaped notch that rotatably fits and holds the rotation operation part and the third disc gear, and is rotatable in the gear hole of the base. It is composed of three parts including a third crescent plate that is fitted circumferentially to.

Therefore, the areas of the second crescent plate and the third crescent plate are sequentially larger than those of the first crescent plate, and the component cost (material cost and manufacturing cost) is increased, and the three crescent plates are There was a problem in that the lunar plate could not be fitted into the base gear hole and could not be transported, and the lithographic package was bulky and the transportation cost was high.

The present invention has been devised in order to solve the above-mentioned conventional problems, and its purpose is to reduce the cost of parts of a gear rotating body and to reduce the cost of the entire drawing device, and the crescent moon plate for all incidental sheets. Is to be fitted in the base gear hole so that it can be transported.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the pattern drawing device of the present invention has a flat plate-shaped base that has a large diameter gear hole in the center and can be placed face-to-face on drawing paper, and a circular gear in this base gear hole. A plurality of disc gears with smaller diameters and different diameters than the gear holes that have mesh teeth that can mesh with each other and that have multiple writing end insertion holes on the disc surface that differ in distance from the disc center. A gear wheel rotating body that rotatably holds a disk gear having a desired diameter of the respective disk gears and that meshes the disk gears to rotate and revolve along the circular gears of the base. The gear rotating body has a C-shaped notch for rotatably fitting and holding the rotation operating portion and the first disc gear having the largest diameter, and rotatably makes a circumferential contact with the gear hole of the base. The first crescent plate to be fitted and the second crescent plate with a diameter smaller than that of the first disc gear. A second crescent plate having a C-shaped notch for rotatably fitting and holding a plate gear and being positioned in the C-shaped notch of the first crescent plate and integrally fitted and locked so as to rotate together. It is configured to be equipped.

In the case where the disc gear is composed of a large-diameter first disc gear, a medium-diameter second disc gear, and a small-diameter third disc gear, the gear rotating body Has a C-shaped notch for rotatably fitting and holding the rotary operating portion and the first disc gear, and is rotatably circumferentially fitted into the gear hole of the base, and the first crescent moon plate, and A second crescent plate having a C-shaped notch portion for rotatably fitting and holding a second disc gear, and being positioned at the C-shaped notch portion of the first crescent plate and fitted and locked so as to be integrally rotatable. And a C-shaped notch portion that rotatably fits and holds the third disc gear, is positioned in the C-shaped notch portion of the second crescent plate, and is fitted and locked so as to be integrally rotatable. It is composed of 3 parts with a crescent plate.

[0008]

When the gear rotating body is composed of the first, second and third crescent plates or the first, second, third crescent plates as described above, the sizes of the second and third crescent plates are large. Becomes smaller than the first crescent moon plate, the parts cost (material cost and manufacturing cost) of the gear rotating body can be reduced, and the price of the entire drawing device can be reduced. The 2 or 3) crescent plate can be connected and fitted to the base gear hole for transportation, and it is possible to reduce the transportation cost by reducing the space.

[0009]

【Example】

 An embodiment of the present invention will be specifically described below with reference to the drawings. In the figure, reference numeral 1 denotes a flat plate-shaped base that can be placed on a drawing paper (not shown) and placed on the surface. The base 1 has a plurality of template holes 2a to 2f having different shapes, and large, medium and small gear fitting openings 3a to. 3c and a gear hole 4 with a large diameter of about 65 mm located in the center are formed of a transparent and transparent synthetic resin plate having an elliptical flat surface, and the peripheral thickness thereof is set to about 4 mm. .

Reference numerals 5, 6, and 7 are first, second, and third disc gears that are set-fitted to the large, medium, and small gear fitting ports 3a to 3c as shown in FIG. 1 when not in use. The disc gears 5 to 7 have gear teeth 5a, 6a, and 7a on the outer periphery that can mesh with the circular gear 4a of the base gear hole 4, and a plurality of writing ends inserted into the disc surface at different distances from the disc center. The holes 15, 16 and 17 are arranged in a spiral shape and drilled. In the case of the present embodiment, the first disc gear 5 has a diameter of 40 mm, the number of teeth is 63, and the second disc gear 6 is. The diameter of 33 mm and the number of teeth is 52, and the third disc gear 7 is designed to have the diameter of 23 mm and the number of teeth of 36.

Numeral 10 rotatably holds a disc gear having a desired diameter among the disc gears 5 to 7 and meshes the disc gear so as to rotate and revolve along the circular gear 4 a of the base 1. In the case of the present embodiment, in the case of a rotating gear, the rotary operating rod 8 can be inserted as shown in FIG. 4, and the concave rotary operating portion B and the first disc gear 5 having the largest diameter are rotatably fitted. A first crescent plate 11 that has a C-shaped notch 11a for holding and is rotatably fitted in the gear hole 4 of the base 1 and a second disc gear 6 are rotatably fitted and held. A second crescent plate 12 which has a C-shaped cutout 12a and is positioned in the C-shaped cutout 11a of the first crescent plate 11 by a convex portion 12b and a concave portion 11b so as to be integrally rotatable and locked. The second crescent moon having a C-shaped notch 13a for rotatably fittingly holding the third disc gear 7 The C-shaped notch 12a of the plate 12 is composed of three parts: a convex part 13b and a concave part 12c, and a third crescent plate 13 which is fitted and locked so as to be integrally rotatable.

When only two gears (first disc gear 5 and second disc gear 6) are provided, the gear rotating body 10 includes the rotation operating portion B and the second gear. A first crescent moon plate 11 having a C-shaped notch 11a for rotatably fitting and holding the first disc gear 5 and rotatably circumferentially fitted in the gear hole 4, and a second disc gear. 6 has a C-shaped cutout 12a for rotatably fittingly holding it, and the C-shaped cutout 11a of the first crescent plate 11 is positioned by the convex portion 12b and the concave portion 11b to be fitted and locked integrally rotatably. It is composed of two parts such as the second crescent plate 12.

FIG. 3 shows a gear rotating body 10 in which a first crescent moon plate 11, a second crescent moon plate 12 and a third crescent moon plate 13 are rotatably combined and connected to a gear hole 4 of the base 1. Shown is a state-of-use drawing of a pattern drawing in which the third disk gear 7 is rotatably fitted and held in the C-shaped notch 13a of the third crescent plate 13 in this state. 3 disk Insert the writing end of the water-based writing instrument P with the balance washer 9 fitted and held in the writing end insertion hole 17 (outer end hole 17a shown in FIG. 2) of the gear 7 as shown in FIG. When the rotary operation rod 8 is inserted into the working portion B as shown in FIG. 4 and the rotary body 10 is rotated in one direction, the rotation and revolution of the gear 7 along the circular gear 4a causes the rotation of the rotary body 10 to the direction shown in FIG. A geometric pattern M1 as shown can be drawn.

In the state of FIG. 3, the writing end of the water-based writing instrument P is inserted into the writing end insertion hole 17 (the inner end hole 17c shown in FIG. 2) of the third disc gear 7 as shown in FIG. When the rotary operation rod 8 is inserted into the operation portion B as shown in FIG. 4 and the rotary body 10 is rotated in one direction, the rotation and revolution of the gear 7 along the circular gear 4a is shown in FIG. 5 (b). It is possible to draw such a geometric pattern M2.

FIG. 6 shows a gear rotating body 10 in which a first crescent moon plate 11 and a second crescent moon plate 12 are integrally rotatably combined and connected to a gear hole 4 of the base 1 so as to be circumferentially fitted. Shows a usage drawing of a pattern drawing in which the second disc gear 6 is rotatably fitted and held in the C-shaped notch 12a of the second crescent plate 12, and the writing end of the disc gear 6 is shown in this state. The writing end of the water-based writing instrument P is inserted into the insertion hole 16 (outer end hole 16a shown in FIG. 2) as shown in FIG. 4, and the rotary operation rod 8 is inserted into the rotary operation section B as shown in FIG. When the rotating body 10 is rotated in one direction, the geometric pattern M3 as shown in FIG. 7A can be drawn by the rotation / revolution of the gear 6 along the circular gear 4a.

Further, in the state of FIG. 6, the writing end of the water-based writing instrument P is inserted into the writing end insertion hole 16 (the intermediate hole 16b or the inner end hole 16c shown in FIG. 2) of the second disc gear 6 as shown in FIG. Then, when the rotary operation rod 8 is inserted into the rotary operation portion B as shown in FIG. 4 and the rotary body 10 is rotated in one direction, the rotation / revolution of the gear 6 along the circular gear 4a is performed. It is possible to draw geometric patterns M4 and M5 as shown in (b) or FIG. 7 (c).

In FIG. 8, the first crescent moon plate 11 is rotatably fitted circumferentially into the gear hole 4 of the base 1, and the C-shaped notch portion 11 a of the first crescent moon plate 11 has the first disc gear. 5 shows a state of use of a pattern drawing in which 5 is rotatably fitted and held. In this state, the writing end of the water-based writing instrument P is inserted into the writing end insertion hole 15 (outer end hole 15a shown in FIG. 2) of the gear 5. When the rotation operating rod 8 is inserted into the rotation operating portion B as shown in FIG. 4 and the crescent plate 11 is rotated in one direction, the rotation of the gear 5 along the circular gear 4a is performed. The geometric pattern M6 as shown in FIG. 9A can be drawn by the revolution.

Further, in the state of FIG. 8, the writing end of the water-based writing instrument P is inserted into the writing end insertion hole 15 (the intermediate hole 15b or the inner end hole 15c shown in FIG. 2) of the first disc gear 5 as shown in FIG. When the rotation operating rod 8 is inserted into the rotation operating portion B as shown in FIG. 4 and the crescent moon plate 11 is rotated in one direction, the gear 5 rotates and revolves along the circular gear 4a. It is possible to draw geometric patterns M7 and M8 as shown in (b) or FIG. 9 (c).

[0019]

[Effect of device]

 The pattern drawing device of the present invention is configured such that the gear rotating body 10 is provided with the first and second crescent moon plates 11 and 12, or is provided with the first, second and third crescent moon plates 11, 12, and 13. Therefore, the size of the second crescent plate 11 or the size of the second crescent plate 11 and the third crescent plate 13 becomes smaller than that of the first crescent plate 11 in sequence, and therefore the gear rotating body 10 parts cost (material cost and manufacturing cost) can be reduced and the price of the entire drawing device can be reduced, and all crescent plates 11 to 13 of all the incidental numbers (first, second or third) are attached to the base gear hole. 4 can be connected and fitted for transportation, and the transportation cost can be reduced by reducing the space, which is an excellent practical effect.

[Brief description of drawings]

FIG. 1 is a plan view showing a pattern painter according to an embodiment of the present invention in a state of being stored and transported.

FIG. 2 is a component diagram in an exploded state in which a disc gear and a gear rotating body (crescent plate) attached to the pattern drawing device of the present invention are shown in relation to each other.

FIG. 3 is a plan view showing the pattern drawing device of the present invention in a state in which a third disc gear is used.

FIG. 4 is a cross-sectional view of a main part of a pattern drawing state taken along the line AA of FIG.

FIG. 5 is an explanatory diagram of a geometric pattern drawn by using the pattern drawing device of the present invention (using a third disc gear).

FIG. 6 is a plan view showing a pattern drawing device of the present invention in a state where a second disc gear is used.

FIG. 7 is an explanatory diagram of a geometric pattern drawn using the pattern drawing device of the present invention (using the second disc gear).

FIG. 8 is a plan view showing the pattern drawing device of the present invention in the use state of the first disc gear.

FIG. 9 is an explanatory diagram of a geometric pattern drawn by using the pattern drawing device (using the first disc gear) of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base, 4 ... Large diameter gear hole, 4a ... Circular gear, 5 ... 1st disc gear, 6 ... 2nd disc gear, 7 ... 3rd disc gear, 5a, 6a, 7a ... Each Peripheral gear teeth of disk gear, 8 ...
Rotating operation rod, P ... Water-based writing instrument, 10 ... Gear rotating body, 11
... 1st crescent moon, B ... Rotation operation part, 11a ... C-shaped notch part of 1st crescent moon, 12 ... 2nd crescent moon, 12a ... C-shaped notch part of 2nd crescent moon, 13 ... 3rd Crescent Plate, 13
a ... C-shaped notch of third crescent plate, 15 ... Writing end insertion hole of first disc gear, 16 ... Writing end insertion hole of second disc gear, 1
7 ... Writing end insertion hole of the third disc gear.

Claims (2)

[Scope of utility model registration request] 1. A disc-shaped base having a large-diameter gear hole in the center thereof, which can be installed face-to-face on drawing paper, and gear teeth which can mesh with a circular gear in the base gear hole on the outer periphery. A plurality of disc gears each having a smaller diameter and a different diameter than the gear hole in which a plurality of writing end insertion holes having different distances from the disc center are formed, and a disc having a desired diameter among the disc gears. In a pattern drawing machine, comprising a gear rotatably holding the gear rotatably and rotating the disc gear to rotate and revolve along the circular gear of the base.
A first crescent plate rotatably fitted circumferentially into a gear hole of the base, which has a C-shaped cutout portion for rotatably fitting and holding a rotation operating portion and a first disc gear having the largest diameter; Has a C-shaped notch for rotatably fitting and holding a second disc gear having a diameter smaller than that of the first disc gear, and is positioned so as to be integrally rotatable with the C-shaped notch of the first crescent plate. A pattern drawing device comprising a second crescent plate that is locked together. 2. The gear rotating device according to claim 3, wherein the disc gear is composed of a large-diameter first disc gear, a medium-diameter second disc gear, and a small-diameter third disc gear. A first crescent plate rotatably circumferentially fitted in a gear hole of the base, the body having a C-shaped notch for rotatably fitting and holding the rotary operation part and the first disc gear; A second crescent plate having a C-shaped notch for rotatably fittingly holding the second disc gear and being positioned at the C-shaped notch of the first crescent plate and integrally fitted and locked so as to rotate together; A third crescent moon that has a C-shaped notch portion that rotatably fits and holds the third disc gear and that is positioned in the C-shaped notch portion of the second crescent plate and that is fitted and locked so as to be integrally rotatable. The pattern drawing device according to claim 1, wherein the pattern drawing device is configured by three parts including a plate.