JP3006966U

JP3006966U - compass

Info

Publication number: JP3006966U
Application number: JP1994010512U
Authority: JP
Inventors: 洋三高橋
Original assignee: 洋三高橋
Priority date: 1994-07-20
Filing date: 1994-07-20
Publication date: 1995-01-31
Anticipated expiration: 2000-07-20

Abstract

(57)【要約】【目的】この考案は，中心針と鉛筆芯，つまみ部が常
に紙面に垂直に位置するように設定できるコンパスに関
するもので，このコンパスを使用すれば，大きな円を書
く場合でも半径の寸法が速く設定でき，中心針がずれ
ず，中心針の穴が紙面上に大きくあくことがなく，正確
で奇麗な円が楽に書くことができる。【構成】アーム取付台（２）の上部中央につまみ
（１）を設け，アーム取付台（２）の下部にアーム
（３，４，１３，１４）を設け，片側のアーム（３，
４）の下部に中心針取付台（５）を設け，その反対側の
アーム（１３，１４）の下部に芯取付台（８）を設け，
中心針取付台（５）に中心針（７）と中心針取付ねじ
（６）を設け，芯取付台（８）に芯挿入溝（２３），切
割り（１２），芯取付ねじ（９）を設け，外側アーム
（３，１３）の上端に歯車部（１０，１１）を設け，ア
ーム（３，４，１３，１４）の両端にアーム取付ねじ
（１５，１９，１６，２０，１７，２１，１８，２２）
を設けたことを特徴とする。 (57) [Abstract] [Purpose] This invention relates to a compass that can be set so that the center needle, pencil lead, and knob are always positioned perpendicular to the paper surface. When using this compass, when writing a large circle However, the radius dimension can be set quickly, the center needle does not shift, the hole of the center needle does not greatly open on the paper surface, and accurate and beautiful circles can be easily written. [Structure] The knob (1) is provided at the center of the upper part of the arm mount (2), the arms (3, 4, 13, 14) are provided at the bottom of the arm mount (2), and the arm (3, 4) on one side is provided.
4) The central needle mount (5) is provided in the lower part, and the core mount (8) is provided in the lower part of the arm (13, 14) on the opposite side.
The center needle mounting base (5) is provided with a center needle (7) and a center needle mounting screw (6), and the core mounting base (8) is provided with a core insertion groove (23), a slit (12), and a core mounting screw (9). And the gear parts (10, 11) are provided on the upper ends of the outer arms (3, 13), and the arm mounting screws (15, 19, 16, 20, 17, 17) are provided on both ends of the arms (3, 4, 13, 14). 21, 18, 22)
Is provided.

Description

[Detailed description of the device]

【０００１】[0001]

[Industrial applications]

この考案は，つまみと中心針，鉛筆芯が常に紙面と垂直に位置するように，アーム取付台，４本のアーム，中心針取付台，芯取付台を設けた，紙面に円を書くコンパスに関するものである。 This device has an arm mount, four arms, a center needle mount, and a core mount so that the knob, the center needle, and the pencil lead are always positioned perpendicular to the paper. A circle is drawn on the paper. It's about compass.

【０００２】[0002]

[Prior art]

従来，紙面に円を書くコンパスでは，紙面と中心針，鉛筆芯の垂直位置をだすために両方のアームの中央が折れ曲がるようにしたものや，鉛筆芯側のアームの中央が折れ曲がるようにしたものがあった。 Conventionally, in a compass that draws a circle on the paper, the center of both arms is bent to set the vertical position of the paper, the center needle, and the pencil lead, or the center of the arm on the pencil lead side is bent. was there.

【０００３】[0003]

[Problems to be solved by the device]

これは次のような欠点があった。（イ）両方のアームの中央部が折れ曲がる形式のものは，大きな円を書く場合手でアームを調節するため，左右の折れ曲り方が均一でなく寸法を合わせるのに時間がかかることが多かった。（ロ）鉛筆芯側のアームの中央部が折れ曲がる形式のものは，大きな円を書く場合，鉛筆芯を紙面に対し垂直にすることは可能であるが，中心針が紙面に対し垂直にならず中心針の穴が大きくあいたり，中心針がずれることが多かった。本考案は，これらの欠点を除くためになされたものである。 This had the following drawbacks. (B) In the type in which the central part of both arms is bent, when writing a large circle, the arms are adjusted manually, so the bending method on the left and right is not uniform and it often takes time to adjust the dimensions. It was (B) When the center of the arm on the pencil lead side is bent, when writing a large circle, it is possible to make the pencil lead perpendicular to the paper surface, but the central needle should be perpendicular to the paper surface. Of course, the center needle often had large holes and the center needle was misaligned. The present invention has been made to eliminate these drawbacks.

【０００４】[0004]

[Means for Solving the Problems]

アーム取付台（２）の上部につまみ（１）を設ける。アーム取付台（２）の下部にアーム（３，４，１３，１４）を設ける。片側のアーム（３，４）の下部に中心針取付台（５）を設ける。その反対側のアーム（１３，１４）の下部に芯取付台（８）を設ける。中心針取付台（５）に中心針（７）と中心針取付ねじ（６）を設ける。芯取付台（８）に芯挿入溝（２３），切割り（１２），芯取付ねじ（９）を設ける。外側のアーム（３，１３）の上端に歯車部（１０，１１）を設ける。アーム（３，４，１３，１４）の両端にアーム取付ねじ（１５，１９，１６，２０，１７，２１，１８，２２）を設ける。本考案は，以上の構成よりなる，コンパス。 A knob (1) is provided on the upper part of the arm mount (2). Arms (3, 4, 13, 14) are provided below the arm mount (2). A central needle mount (5) is provided at the bottom of one arm (3, 4). A centering stand (8) is provided below the arms (13, 14) on the opposite side. The center needle mount (5) is provided with the center needle (7) and the center needle mounting screw (6). The core mounting base (8) is provided with a core insertion groove (23), a slit (12), and a core mounting screw (9). Gears (10, 11) are provided on the upper ends of the outer arms (3, 13). Arm mounting screws (15, 19, 16, 20, 17, 21, 18, 22) are provided at both ends of the arms (3, 4, 13, 14). The present invention is a compass having the above configuration.

【０００５】[0005]

[Action]

中心針取付台（５）を片手でつかみ，別の手で芯取付台（８）をつかんで外側へ広げると，アーム（３，４）は，アーム取付ねじ（１５，１９，１６，２０）でアーム取付台（２）と中心針取付台（５）に取付られ平行四辺形を形成し，アーム（１３，１４）も，アーム取付ねじ（１７，２１，１８，２２）でアーム取付台（２）と芯取付台（８）に取付られ平行四辺形を形成し，アーム（３，１３）の上端の歯車部（１０，１１）が互いに噛み合っているので，つまみ（１）を中心とした左右のアーム（３，４）とアーム（１３，１４）の広がりは均一となり，中心針（７），芯挿入溝（２３），つまみ（１）は平行が保たれ，中心針（７）と鉛筆芯は紙面に垂直に位置し，円を書くことができる。 Grasp the center needle mount (5) with one hand, and grasp the core mount (8) with another hand and spread it outward, and the arms (3, 4) will move to the arm mounting screws (15, 19, 16, 20). Is attached to the arm mount (2) and the center needle mount (5) to form a parallelogram, and the arms (13, 14) are also attached to the arm with the arm mount screws (17, 21, 18, 22). It is attached to the attachment base (2) and the core mounting base (8) to form a parallelogram. Since the gear parts (10, 11) at the upper ends of the arms (3, 13) mesh with each other, the knob (1) The left and right arms (3, 4) and the arms (13, 14) around the center are evenly spread, and the center needle (7), core insertion groove (23), and knob (1) are kept parallel, The needle (7) and pencil lead are positioned perpendicular to the plane of the paper and can draw a circle.

【０００６】[0006]

【Example】

以下，本案の実施例について説明する。（イ）アーム取付台（２）の上部中央につまみ（１）を設ける。（ロ）アーム取付台（２）の下側にアーム（３，４，１３，１４）を設け，外側のアーム（３，１３）の上端に歯車部（１０，１１）を設ける。（ハ）つまみ（１）と平行に４本のアーム（３，４，１３，１４）を配置し，歯車部（１０，１１）を互いに噛み合わせ，アーム取付ねじ（１５，１６，１７，１８）で取り付ける。（ニ）片方のアーム（３，４）の下側に中心針取付台（５）を設け，アーム取付ねじ（１９，２０）で取り付ける。（ホ）反対側のアーム（１３，１４）の下側に芯取付台（８）を設け，アーム取付ねじ（２１，２２）で取り付ける。（ヘ）中心針取付台（５）に中心針（７）を設け，中心針取付ねじ（６）で取り付ける。（ト）芯取付台（８）に芯挿入溝（２３），切割り（１２），芯取付ねじ（９）を設ける。本案は，以上のような構造であるから，これを使用するときは，芯挿入溝（２３）に鉛筆芯を差し込み，芯取付ねじ（９）を締め鉛筆芯を固定し，中心針取付台（５）を片手でつかみ，別の手で芯取付台（８）をつかんで外側に広げ，書きたい円の半径を設定し，紙面上に中心針を刺し，鉛筆芯を紙に当て，つまみ（１）をゆっくりとまわして円を書く。 Hereinafter, an example of the present invention will be described. (A) The knob (1) is provided at the center of the upper part of the arm mount (2). (B) Arms (3, 4, 13, 14) are provided below the arm mount (2), and gear parts (10, 11) are provided at the upper ends of the outer arms (3, 13). (C) Four arms (3, 4, 13, 14) are arranged in parallel with the knob (1), the gear parts (10, 11) are engaged with each other, and the arm mounting screws (15, 16, 17, Install in 18). (D) Provide the center needle mount (5) on the lower side of one arm (3, 4) and attach it with the arm mounting screws (19, 20). (E) Provide the core mount (8) on the lower side of the opposite arm (13, 14) and attach it with the arm mounting screws (21, 22). (F) Provide the center needle (7) on the center needle mount (5) and attach it with the center needle mounting screw (6). (G) A lead insertion groove (23), a slit (12), and a lead mounting screw (9) are provided on the lead mounting base (8). Since the present proposal has the above-described structure, when using this, insert the pencil lead into the lead insertion groove (23), tighten the lead mounting screw (9) to fix the pencil lead, and attach the center needle mount base. Grasp (5) with one hand, grasp the lead mount (8) with the other hand and spread it outward, set the radius of the circle you want to write, stab the center needle on the paper surface, put the pencil lead on the paper, and pinch it. Slowly turn (1) to write a circle.

【０００７】[0007]

[Effect of device]

つまみ，中心針，鉛筆芯が紙面に垂直に位置するので，正確で奇麗な円が楽に書け，中心針の穴が大きくつかない。 The knob, center needle, and pencil lead are positioned perpendicular to the surface of the paper, so you can easily write accurate and beautiful circles, and the center needle hole will not be large.

[Brief description of drawings]

【図１】本考案の斜視図FIG. 1 is a perspective view of the present invention.

【図２】本考案の断面図FIG. 2 is a sectional view of the present invention.

【図３】本考案に鉛筆芯を取り付けた斜視図FIG. 3 is a perspective view of the present invention with a pencil lead attached.

[Explanation of sign]

１つまみ２アーム取付台３アーム４アーム５中心針取付台６中心針取付ねじ７中心針８芯取付台９芯取付ねじ１０歯車部１１歯車部１２切割り１３アーム１４アーム１５アーム取付ねじ１６アーム取付ねじ１７アーム取付ねじ１８アーム取付ねじ１９アーム取付ねじ２０アーム取付ねじ２１アーム取付ねじ２２アーム取付ねじ２３芯挿入溝２４鉛筆芯 1 Knob 2 Arm mounting base 3 Arm 4 Arm 5 Center needle mounting base 6 Center needle mounting screw 7 Center needle 8 Core mounting base 9 Core mounting screw 10 Gear part 11 Gear part 12 Notch 13 Arm 14 Arm 15 Arm mounting screw 16 Arm Mounting screw 17 Arm mounting screw 18 Arm mounting screw 19 Arm mounting screw 20 Arm mounting screw 21 Arm mounting screw 22 Arm mounting screw 23 Core insertion groove 24 Pencil lead

Claims

[Scope of utility model registration request]

(A) A knob (1) is provided on an upper part of an arm mount (2), and arms (3, 4, 13, 14) are provided on a lower part of the arm mount (2). (B) The center needle mount (5) is provided under the arm (3, 4) on one side, and the core mount (8) is provided under the arm (13, 14) on the opposite side. (C) The central needle mounting base (5) is provided with the central needle (7) and the central needle mounting screw (6). (D) The lead insertion groove (23) and the slit (1
2) Provide core mounting screws (9). (E) On the upper end of the outer arm (3, 13), the gear part (1
0, 11) are provided. (F) Arm mounting screws (15, 19, 16, 20, 17, 21, 18, 18) on both ends of the arm (3, 4, 13, 14)
22) is provided. Compass with the above configuration.