JP3200260B2 - Screw structure of trapezoidal screw - Google Patents
Screw structure of trapezoidal screwInfo
- Publication number
- JP3200260B2 JP3200260B2 JP25332893A JP25332893A JP3200260B2 JP 3200260 B2 JP3200260 B2 JP 3200260B2 JP 25332893 A JP25332893 A JP 25332893A JP 25332893 A JP25332893 A JP 25332893A JP 3200260 B2 JP3200260 B2 JP 3200260B2
- Authority
- JP
- Japan
- Prior art keywords
- thread
- angle
- root
- screw
- screw portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Pens And Brushes (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、台形ねじの螺合構造に
関する。詳しくは、マーキングペンや修正ボールペン等
において、その使用液であるインキや修正液を収容する
容器であるとともにマーキングペンや修正ボールペン等
の軸本体でもあるそれら容器の開口を塞ぎ、当該開口か
らそれらの液が出ないようにし、かつ当該容器の開口か
ら先端が外部に臨まされたペン体を液収納容器に保持す
るホルダーを前記容器に取り付けるための台形ねじの螺
合構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trapezoidal screw screwing structure. Specifically, in the case of a marking pen or a correction ball-point pen, etc., the openings of those containers which are the containers for the ink or the correction liquid used as well as the shaft body of the marking pen, the correction ball-point pen, etc. are closed, and the openings are closed from the opening. The present invention relates to a threaded structure of a trapezoidal screw for attaching a holder for holding a pen body having a tip exposed to the outside from an opening of the container to the container so as to prevent the liquid from flowing out.
【０００２】[0002]
【従来の技術】マーキングペン等のインキや修正ボール
ペン等の修正液が入るとともにマーキングペンや修正ボ
ールペン等の軸本体でもある液収納容器にあっては、そ
の先端部に、液の出るペン体を液収納容器の先端部に保
持するとともに液収納容器の先端開口を塞いで当該開口
からインキや修正液が液収納容器から漏れないようにす
るためのホルダーが螺着されている。2. Description of the Related Art In a liquid container, which is used for ink such as a marking pen and a correction liquid such as a correction ball-point pen, and which is also a shaft body of the marking pen and the correction ball-point pen, a pen body from which the liquid is discharged is provided at the tip thereof. A holder is screwed onto the liquid storage container to hold it at the front end and close the front end opening of the liquid storage container to prevent the ink and the correction liquid from leaking from the liquid storage container through the opening.
【０００３】ホルダーを容器に螺着するための従来の台
形ねじの螺合構造１を図５および図６に示す。図５は、
マーキングペンの一種類であるフェルトペン２の基本構
造をキャップ４を取った状態で示す概略断面図、図６は
図５の領域Ａで示す部分の一部拡大側断面図である。FIGS. 5 and 6 show a conventional trapezoidal screw screwing structure 1 for screwing a holder to a container. FIG.
FIG. 6 is a partially enlarged side sectional view showing a basic structure of a felt pen 2 which is one type of a marking pen, with a cap 4 removed. FIG.
【０００４】図５において、フェルトペン２には、その
軸本体でもある液収納容器７に図示しないインキを含ん
だフェルト８が内蔵されている。そして、フェルト８の
先端には、ペン体１０が取り付けられ、ペン体１０のイ
ンキの出る先端１０１は、螺合構造１を介して液収納容
器７の開口７１の周りに螺着されるホルダー６によって
液収納容器７に支持されている。Referring to FIG. 5, a felt pen 2 contains a felt 8 containing ink (not shown) in a liquid container 7 which is also a shaft main body. A pen body 10 is attached to a tip of the felt 8, and a tip 101 of the pen body 10 from which ink is discharged is a holder 6 that is screwed around the opening 71 of the liquid container 7 via the screwing structure 1. Is supported by the liquid container 7.
【０００５】また、図６に示すように、ホルダー６の内
周面６ａには、螺合構造１の構成要素である雌ねじ部１
４が形成されており、液収納容器７の開口周り７ａに
は、同じく螺合構造１の構成要素である雄ねじ部１６が
形成されている。ところで、インキ等の使用液が液収納
容器７から漏れないようにホルダー６は液収納容器７に
密閉状に固く螺着する必要があり、上記従来技術にあっ
ては、ねじ山角αを形成するねじ山部分１６’のかみ合
い面１６’ａ・１６’ａと、谷底角α’を形成する谷底
部分１４’のかみ合い面１４’ａ・１４’ａとを面接触
させ、当該面接触によって生じる摩擦力のみによって、
雄ねじ部１６と雌ねじ部１４とを固く締め付ける構造に
なっていた。なお、符号１７が示すものは不完全ねじ部
である。[0005] As shown in FIG. 6, a female screw portion 1, which is a component of the screw structure 1, is provided on an inner peripheral surface 6 a of the holder 6.
4 are formed, and a male screw portion 16, which is a component of the screw structure 1, is formed around the opening 7 a of the liquid storage container 7. By the way, the holder 6 needs to be tightly screwed tightly into the liquid storage container 7 so that the used liquid such as ink does not leak from the liquid storage container 7. Surfaces 16'a and 16'a of the threaded portion 16 'to be engaged with the engaging surfaces 14'a and 14'a of the root portion 14' forming the root angle α ', and this is caused by the surface contact. Only by friction force,
The male screw part 16 and the female screw part 14 were firmly tightened. The reference numeral 17 indicates an incomplete screw portion.
【０００６】しかしながら、このような構造の従来技術
では、経時的変化によって、または強い外力を受けるこ
とによって、ねじが緩んでしまう場合が想定される。ま
た、ねじ山部分１６’のねじ山角αと谷底部分１４’の
谷底角α’が同じであるため、ねじ山部分１６’と谷底
部分１４’とが同形状となってしまい、それらの設計の
自由度は広いとは言い難かった。However, in the prior art having such a structure, it is assumed that the screw may be loosened due to a change over time or a strong external force. Further, since the thread angle α of the thread portion 16 ′ and the root angle α ′ of the root portion 14 ′ are the same, the thread portion 16 ′ and the root portion 14 ′ have the same shape. Was not very flexible.
【０００７】[0007]
【発明が解決しようとする課題】本発明台形ねじの螺合
構造は、上記従来の問題点に鑑みてなされたものであっ
て、その解決しようとする課題は、経時的変化によっ
て、または強い外力を受けることによってねじが緩まな
いようにできるとともに、ねじ山部分および谷底部分の
設計の自由度を広げることができ、しかも、ペン体を保
持するホルダーと液収納容器との螺合部からインキや修
正液が漏れないようにする台形ねじの螺合構造を提供す
ることにある。SUMMARY OF THE INVENTION The screwing structure of the trapezoidal screw according to the present invention has been made in view of the above-mentioned conventional problems, and the problem to be solved is to change over time or to apply a strong external force. By receiving the screw, the screw can be prevented from being loosened, the degree of freedom in the design of the thread portion and the root portion can be increased, and the pen body can be maintained.
Ink or repair from the threaded part of the holder and the liquid container
An object of the present invention is to provide a threaded structure of a trapezoidal screw for preventing leakage of a positive liquid .
【０００８】[0008]
【課題を解決するための手段】本発明台形ねじの螺合構
造は、以上の課題を解決するものであって、次のような
ものである。請求項１記載の台形ねじの螺合構造によれ
ば、雄ねじ部と雌ねじ部とからなり、これらのかみ合い
部分である前記雄ねじ部のねじ山部分および前記雌ねじ
部の谷底部分のそれぞれのねじ山角および谷底角が異角
度に形成され、前記ねじ山角形成のねじ山部分および前
記谷底角形成の谷底部分のそれぞれのかみ合い面のう
ち、ねじ山角形成の一方のかみ合い面と谷底角形成の一
方のかみ合い面とは面接触し、当該一方のかみ合い面に
対する、前記ねじ山角形成の他方のかみ合い面または谷
底角形成の他方のかみ合い面のうちのいずれか一方の他
方のかみ合い面は、当該他方のかみ合い面を有しない、
雄ねじ部のねじ山部分または雌ねじ部の谷底部分に係る
頂点の一方と縦断面視点接触状態で当接し、前記雄ねじ
部と前記雌ねじ部とではその材質に硬度差を設けた。SUMMARY OF THE INVENTION The screwing structure of the trapezoidal screw according to the present invention solves the above-mentioned problems and is as follows. According to the screwing structure of the trapezoidal screw according to claim 1, each of the thread angles of the threaded portion of the male threaded portion and the root portion of the female threaded portion, which are the meshing portions, are provided. And the root angles are formed at different angles, and of the respective threading surfaces of the thread portion forming the thread angle and the root portion forming the root angle, one of the engaging surfaces of the thread angle forming and one of the root angle forming are formed. The other meshing surface of the thread angle formation or the other meshing surface of the root angle formation with respect to the one meshing surface is the other meshing surface. Not having a meshing surface,
One of the apexes relating to the thread portion of the male screw portion or the root portion of the female screw portion abuts in a longitudinal cross-sectional view contact state, and a hardness difference is provided between the material of the male screw portion and the female screw portion.
【０００９】請求項２記載の台形ねじの螺合構造によれ
ば、雄ねじ部のねじ山部分のねじ山角を雌ねじ部の谷底
部分の谷底角よりも広い角度にしたことを特徴とする。According to a second aspect of the present invention, the thread angle of the thread portion of the male screw portion is wider than the root angle of the root portion of the female screw portion.
【００１０】請求項３記載の台形ねじの螺合構造によれ
ば、雌ねじ部の谷底部分の谷底角を雄ねじ部のねじ山部
分のねじ山角よりも広い角度にしたことを特徴とする。According to a third aspect of the present invention, the root angle of the root portion of the female screw portion is wider than the root angle of the thread portion of the male screw portion.
【００１１】[0011]
【作用】したがって、請求項１ないし３記載の本発明台
形ねじの螺合構造によれば、雄ねじ部のねじ山部分のね
じ山角および雌ねじ部の谷底部分の谷底角が異角度であ
っても、雄ねじ部におけるねじ山角形成のねじ山部分お
よび雌ねじ部における谷底角形成の谷底部分のそれぞれ
のかみ合い面のうち、ねじ山角形成の一方のかみ合い面
と谷底角形成の一方のかみ合い面とは面接触し、当該一
方のかみ合い面に対する、前記ねじ山角形成の他方のか
み合い面または谷底角形成の他方のかみ合い面のうちの
いずれか一方の他方のかみ合い面は、当該他方のかみ合
い面を有しない、雄ねじ部のねじ山部分または雌ねじ部
の谷底部分に係る頂点の一方と縦断面視点接触状態で当
接するので、かみ合い面がすべて面接触していた従来技
術よりもスムースに回転しながら雄ねじ部と雌ねじ部と
が螺合するようになる。Therefore, according to the screwing structure of the trapezoidal screw according to the first to third aspects of the present invention, even if the thread angle of the thread portion of the male thread portion and the root angle of the root portion of the female thread portion are different angles. Of the meshing surfaces of the thread portion forming the thread angle in the male screw portion and the root portion forming the root angle in the female screw portion, one of the meshing surface for forming the thread angle and the other meshing surface for forming the root angle are The other meshing surface of one of the other meshing surface of the thread angle forming and the other meshing surface of the root angle forming with the one meshing surface has the other meshing surface. No, because it is in contact with one of the vertices of the threaded part of the male thread or the root of the female thread in the vertical cross-sectional view contact state, it is smoother than the conventional technology in which all meshing surfaces are in surface contact And while rotating the male screw portion and the female screw portion so screwed.
【００１２】しかも、雄ねじ部と雌ねじ部とでは、その
材質に硬度差があるので、前記頂点の一方は、前記ねじ
山角形成の他方のかみ合い面または谷底角形成の他方の
かみ合い面のうちのいずれか一方の他方のかみ合い面に
不完全ねじ部において食い込むようになり、ねじ部の接
触部の密着性が高くなるので、ねじ部からの液漏れを防
止できる。 In addition, since there is a difference in hardness between the material of the male screw portion and the material of the female screw portion, one of the vertices is one of the other meshing surface for forming the thread angle or the other meshing surface for forming the root angle. One of the other mating surfaces will bite into the incomplete thread, and the thread
Since the contact area of the contact part is high, liquid leakage from the screw part is prevented.
Can be stopped.
【００１３】請求項２記載の台形ねじの螺合構造によれ
ば、雄ねじ部のねじ山部分のねじ山角を雌ねじ部の谷底
部分の谷底角よりも広い角度にすることにより、雄ねじ
部または雌ねじ部の形状に変化を付けられるので、ねじ
部の形成に自由度が増す。According to the screw structure of the trapezoidal screw according to the second aspect, the thread angle of the thread portion of the male screw portion is set to be wider than the root angle of the root portion of the female screw portion, so that the male screw portion or the female screw portion is formed. because attached a change in shape of the parts, the screw
The degree of freedom in forming the part increases .
【００１４】請求項３記載の台形ねじの螺合構造によれ
ば、雌ねじ部の谷底部分の谷底角を雄ねじ部のねじ山部
分のねじ山角よりも広い角度にすることにより、雄ねじ
部または雌ねじ部の形状に変化を付けられるので、ねじ
部の形成に自由度が増す。According to the screw structure of the trapezoidal screw according to the third aspect, the root angle of the root portion of the female thread portion is set to be wider than the thread angle of the thread portion of the male thread portion, so that the male screw portion or the female screw portion is formed. because attached a change in shape of the parts, the screw
The degree of freedom in forming the part increases .
【００１５】[0015]
【実施例】以下、図面を参照して、本発明の台形ねじの
螺合構造を図示した実施例に従って詳細に説明する。図
１は本発明に係る台形ねじの螺合構造１Ａの一部切り欠
き要部拡大斜視図、図２は図１の台形ねじの螺合構造の
雄ねじ部と雌ねじ部とを説明のために離間して示す要部
概略図、図３および図４は図１および図２の変形例を示
す図であって、図３および図４はそれぞれ図１および図
２に相等する図である。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a trapezoidal screw screwing structure according to the present invention. FIG. 1 is an enlarged perspective view of a part of a trapezoidal screw threaded structure 1A according to the present invention, showing a partially cut-away portion. FIG. 2 shows a male screw part and a female screw part of the trapezoidal screw threaded structure of FIG. 3 and FIG. 4 are views showing modifications of FIG. 1 and FIG. 2, and FIG. 3 and FIG. 4 are views equivalent to FIG. 1 and FIG. 2, respectively.
【００１６】フェルトペン２の基本構造は、図５で示し
た従来技術と同じであるので、従来技術と相当する部分
には符号”Ａ”を付して説明を省略し、相違する部分に
ついてのみ新たな符号を付して説明する。Since the basic structure of the felt pen 2 is the same as that of the prior art shown in FIG. 5, the portions corresponding to the prior art are denoted by the symbol "A", and the description thereof is omitted. Description will be given with new reference numerals.
【００１７】本発明に係る台形ねじの螺合構造１Ａは、
フェルトペン２のホルダー６Ａおよび液収納容器７Ａを
螺着するための螺合構造に適用されている。台形ねじの
螺合構造１Ａは、ホルダー６Ａに設けられた雌ねじ部１
４Ａと、液収納容器７Ａに設けられた雄ねじ部１６Ａと
からなる。The screwing structure 1A of the trapezoidal screw according to the present invention comprises:
It is applied to a screwing structure for screwing the holder 6A of the felt pen 2 and the liquid storage container 7A. The threaded structure 1A of the trapezoidal screw is formed by a female screw 1 provided on the holder 6A.
4A and a male screw 16A provided in the liquid storage container 7A.
【００１８】これらのかみ合い部分である雄ねじ部１６
Ａのねじ山部分１８および雌ねじ部１４Ａの谷底部分２
０は、それぞれ台形状をしており、それぞれのねじ山角
αおよび谷底角α’は、異角度に形成されている。この
実施例では、ねじ山角αおよび谷底角α’がそれぞれ６
０°および３５°とされており、当該ねじ山角αの方
が、当該谷底角α’よりも広い角度となるように、図２
に示すように、ねじ山部分１８および谷底部分２０のそ
れぞれの上底１８ａ、２０ａおよび下底１８ｂ、２０ｂ
（各々２点鎖線で示す。）における各頂角は、次のよう
に設定されている。The male screw portion 16 which is the meshing portion
A thread portion 18 and root portion 2 of female screw portion 14A
0 has a trapezoidal shape, and the respective thread angles α and root angles α ′ are formed at different angles. In this embodiment, the thread angle α and the root angle α ′ are 6
0 ° and 35 °, and the thread angle α is wider than the root angle α ′ in FIG.
As shown in FIG. 3, the upper bottom 18a, 20a and the lower bottom 18b, 20b of the thread portion 18 and the root portion 20, respectively.
Each vertex angle (each indicated by a two-dot chain line) is set as follows.
【００１９】［ねじ山部分１８］ 上底１８ａの左側頂角α１＝１２０°、上底１８ａの右
側頂角α２＝１２０°、下底１８ｂの左側頂角α３＝６
０°および上底１８ｂの右側頂角α４＝６０°である。
したがって、ねじ山部分１８は等脚台形状をしていると
いえる。[Thread portion 18] The left vertical angle α1 of the upper bottom 18a is 120 °, the right vertical angle α2 of the upper bottom 18a is 120 °, and the left vertical angle α3 of the lower bottom 18b is 6 = 6.
0 ° and the right vertical angle α4 of the upper base 18b is α4 = 60 °.
Therefore, it can be said that the thread portion 18 has an equilateral trapezoidal shape.
【００２０】［谷底部分２０］ 上底２０ａの左側頂角α１’＝１２０°、上底２０ａの
右側頂角α２’＝９５°、下底２０ｂの左側頂角α３’
＝６０°および上底２０ｂの右側頂角α４’＝８５°で
ある。[Valley Bottom Part 20] The left apex angle α1 ′ of the upper base 20a = 120 °, the right apex angle α2 ′ of the upper base 20a = 95 °, and the left apex angle α3 ′ of the lower base 20b.
= 60 ° and the right vertical angle α4 ′ = 85 ° of the upper base 20b.
【００２１】このように設定したことによって、これら
ねじ山部分１８と谷底部分２０とを噛み合わせると、ね
じ山角αを形成する雄ねじ部１６Ａおよび谷底角α’を
形成する雌ねじ部１４Ａのそれぞれのかみ合い面１８ｃ
1 ・１８ｃ 2 、２０ｃ 1 ・２０ｃ 2 のうち、ねじ山角αを形
成するかみ合い面１８ｃ 1 ・１８ｃ 2 の一方のかみ合い面
１８ｃ 1 と、谷底角α’を形成するかみ合い面２０ｃ 1 ・
２０ｃ 2 の一方のかみ合い面２０ｃ 1 とは面接触し、ねじ
山角αを形成する他方のかみ合い面１８ｃ 2 は、当該他
方のかみ合い面１８ｃ 2 を有しない、雌ねじ部１４Ａの
谷底部分２０に係る頂点２０ 1 ・２０ 2 の一方の頂点２０
1 と図１でわかるように縦断面で見て点接触の状態で当
接するようになる。With these settings, when the thread portion 18 and the root portion 20 are engaged with each other, each of the male thread portion 16A forming the thread angle α and the female thread portion 14A forming the root angle α 'is formed. Meshing surface 18c
1 · 18c 2, of 20c 1 · 20c 2, and one of the mating surfaces 18c 1 of the engagement surface 18c 1 · 18c 2 which forms a screw thread angle alpha, root angle alpha 'are formed mating surfaces 20c 1 ·
20c in surface contact with one of the mating surfaces 20c 1 of 2, the other mating surface 18c 2 which forms a screw thread angle α is no mating surface 18c 2 of the other, according to the trough bottom 20 of the internally threaded portion 14A One vertex 20 of the vertices 20 1 and 20 2
As can be seen from FIG. 1 and FIG. 1, they come into contact with each other in a state of point contact when viewed in a longitudinal section.
【００２２】また、雄ねじ部１６Ａと雌ねじ部１４Ａと
では材質に硬度差があり、この実施例では雌ねじ部１４
Ａの方が硬度である。Further, there is a difference in hardness between the material of the male screw portion 16A and the material of the female screw portion 14A.
A is hardness.
【００２３】しかして、このフェルトペン２の台形ねじ
の螺合構造１によれば、ねじ山部分１８のねじ山角αお
よび谷底部分２０の谷底角α’が異角度であっても、ね
じ山角αを形成する雄ねじ部１６Ａおよび谷底角α’を
形成する雌ねじ部１４Ａのそれぞれのかみ合い面１８ｃ
1 ・１８ｃ 2 、２０ｃ 1 ・２０ｃ 2 のうち、ねじ山角αを形
成するかみ合い面１８ｃ 1 ・１８ｃ 2 の一方のかみ合い面
１８ｃ 1 と、谷底角α’を形成するかみ合い面２０ｃ 1 ・
２０ｃ 2 の一方のかみ合い面２０ｃ 1 とは面接触し、ねじ
山角αを形成する他方のかみ合い面１８ｃ 2 は、当該他
方のかみ合い面１８ｃ 2 を有しない、雌ねじ部１４Ａの
谷底部分２０に係る頂点２０ 1 ・２０ 2 の一方の頂点２０
1 と縦断面で見て点接触の状態で当接しているので、か
み合い面がすべて面接触する場合よりもスムースな回転
をしながら雄ねじ部１６Ａと雌ねじ部１４Ａとが螺合す
るようになる。Thus, according to the threaded structure 1 of the trapezoidal screw of the felt pen 2, even if the thread angle α of the thread portion 18 and the root angle α 'of the root portion 20 are different angles, the thread The mating surfaces 18c of the male screw portion 16A forming the angle α and the female screw portion 14A forming the root angle α '
1 · 18c 2, of 20c 1 · 20c 2, and one of the mating surfaces 18c 1 of the engagement surface 18c 1 · 18c 2 which forms a screw thread angle alpha, root angle alpha 'are formed mating surfaces 20c 1 ·
20c in surface contact with one of the mating surfaces 20c 1 of 2, the other mating surface 18c 2 which forms a screw thread angle α is no mating surface 18c 2 of the other, according to the trough bottom 20 of the internally threaded portion 14A One vertex 20 of the vertices 20 1 and 20 2
1 and therefore in a state of point contact when viewed in longitudinal section is in contact, and the male screw portion 16A and the female screw portion 14A comes to be screwed with the smooth rotation than when mating surfaces are in contact all surfaces.
【００２４】しかも、雄ねじ部１６Ａと雌ねじ部１４Ａ
とでは、雌ねじ部１４Ａの方が材質が硬いので、例え
ば、ホルダー６に対して液収納容器７を回転することに
より、ホルダー６の雌ねじ部１４Ａと液収納容器７の雄
ねじ部１６Ａとを螺合して行くと、図５に示す不完全ね
じ部１７において材質の硬い雌ねじ部１４Ａに係る頂点
２０ 1 が材質の軟らかい雄ねじ部１６Ａの他方の面１８
ｃ 2 に食い込むようになる。このため、雄ねじ部１６Ａ
と雌ねじ部１４Ａとはロック状態になるので、経時的変
化や強い外力を受けてもねじが緩まないようにすること
ができるとともに、ねじ部が食い込むことにより接触部
の密着性が高くなり、ねじ部からの液漏れを防止でき
る。Moreover, the male screw portion 16A and the female screw portion 14A
Since the material of the female screw portion 14A is harder, for example, by rotating the liquid storage container 7 with respect to the holder 6, the female screw portion 14A of the holder 6 and the male screw portion 16A of the liquid storage container 7 are screwed together. If you go, the other surface of the soft male screw portion 16A vertices 20 1 according to the rigid internally threaded portion 14A of a material is a material in the incomplete thread portion 17 shown in FIG. 5 18
so bite into the c 2. For this reason, the male screw portion 16A
And the female screw portion 14A are in a locked state, so that the screw can be prevented from being loosened even when subjected to a temporal change or a strong external force. Liquid leakage from the part can be prevented.
【００２５】また、この実施例では、広い角度のねじ山
角αを有するねじ山部分１８と、これよりも狭い角度の
谷底角α’を有する谷底部分２０とからなるので、ねじ
山部分１８または谷底部分２０の形状に変化を付けられ
るのでねじ山部分１８または／および谷底部分２０の設
計の自由度を広げることができる。Further, in this embodiment, since the thread portion 18 having the thread angle α having a wide angle and the root portion 20 having the root angle α ′ having a smaller angle are formed, the thread portion 18 or Since the shape of the root portion 20 can be changed, the degree of freedom in designing the thread portion 18 and / or the root portion 20 can be increased.
【００２６】（変形例） 図３および図４は、本発明に係る台形ねじの螺合構造１
Ａの変形例１Ｂを示すものである。この変形例１Ｂが、
上記記載のもの１Ａと異なる点は、ねじ山部分または谷
底部分の形状が異なるだけであるので、螺合構造１Ａの
各構成部分に相等する部分には、符号”Ａ”の代わりに
符号”Ｂ”を付して説明を省略し、相違する部分につい
てのみ新たな符号を付して説明する。(Modification) FIGS. 3 and 4 show a trapezoidal screw screwing structure 1 according to the present invention.
13 shows a modified example 1B of A. This modification 1B is
The only difference from the above described 1A is that the shape of the thread portion or the root portion is different. Therefore, the portions equivalent to the respective components of the screwing structure 1A are denoted by the reference symbol "B" instead of the reference symbol "A". The description will be omitted by attaching "", and only different portions will be described with new reference numerals.
【００２７】この変形例１Ｂでは、谷底角α’およびね
じ山角αがそれぞれ６０°および３５°となって谷底角
α’が、ねじ山角αよりも広い角度となるように、図４
で示すように、谷底部分４０およびねじ山部分３８のそ
れぞれの上底４０ａ、３８ａおよび下底４０ｂ、３８ｂ
（各々２点鎖線で示す。）における各頂角は、次のよう
に設定されている。In this modification 1B, the root angle α ′ and the thread angle α are 60 ° and 35 °, respectively, so that the root angle α ′ is wider than the thread angle α.
As shown in the figure, the upper bottom 40a, 38a and the lower bottom 40b, 38b of the root portion 40 and the thread portion 38, respectively.
Each vertex angle (each indicated by a two-dot chain line) is set as follows.
【００２８】［谷底部分４０］ 上底４０ａの左側頂角α１’＝１２０°、上底４０ａの
右側頂角α２’＝１２０°、下底４０ｂの左側頂角α
３’＝６０°および上底４０ｂの右側頂角α４’＝６０
°である。[Valley bottom portion 40] Left vertex angle α1 ′ of upper bottom 40a = 120 °, right vertex angle α2 ′ of upper bottom 40a = 120 °, left vertex angle α of lower bottom 40b
3 ′ = 60 ° and the right vertical angle α4 ′ = 60 of the upper base 40b
°.
【００２９】［ねじ山部分３８］ 上底３８ａの左側頂角α１＝１２０°、上底３８ａの右
側頂角α２＝９５°、下底３８ｂの左側頂角α３＝６０
°および上底３８ｂの右側頂角α４＝８５°である。[Thread portion 38] Left vertex angle α1 of upper bottom 38a = 120 °, right vertex angle α2 = 95 ° of upper bottom 38a, left vertex angle α3 = 60 of lower bottom 38b.
° and the right vertical angle α4 of the upper bottom 38b is 85 °.
【００３０】したがって、ねじ山部分３８は、のこ歯状
台形状をしているといえる。そして、谷底角α’を形成
する雌ねじ部１４Ｂおよびねじ山角αを形成する雄ねじ
部１６Ｂのそれぞれのかみ合い面４０ｃ 1 ・４０ｃ 2 、３
８ｃ 1 ・３８ｃ 2 のうち、谷底角α’を形成するかみ合い
面４０ｃ 1 ・４０ｃ 2 の一方のかみ合い面４０ｃ 1 と、ね
じ山角αを形成するかみ合い面３８ｃ 1 ・３８ｃ 2 の一方
のかみ合い面３８ｃ 1 とは面接触し、谷底角α’を形成
する他方のかみ合い面４０ｃ2は、当該他方のかみ合い
面４０ｃ 2 を有しない、雄ねじ部１６Ｂのねじ山部分３
８に係る頂点３８ 1 ・３８ 2 の一方の頂点３８ 1 と縦断面
で見て点接触の状態で当接している。Therefore, it can be said that the thread portion 38 has a sawtooth trapezoidal shape. Then, each of the mating surface 40c of the male thread portion 16B for forming the internally threaded portion 14B and the thread angle alpha to form a valley angle α '1 · 40c 2, 3
8c 1 · 38c of the two, and one of the mating surfaces 40c 1 of the engagement surface 40c 1 · 40c 2 which forms a root angle alpha ', one of the mating surfaces of the mating surfaces 38c 1 · 38c 2 which forms a screw thread angle alpha in surface contact with 38c 1, other mating surface 40c which forms a root angle alpha '2 has no engagement surface 40c 2 of the other, the threaded portion of the male screw portion 16B 3
Abuts in a state of contact vertices 38 1, 38 2 of one vertex 38 1 and the point when viewed in longitudinal section according to 8.
【００３１】また、雄ねじ部１４Ｂと雌ねじ部１６Ｂと
では材質に硬度差があり、この実施例では雄ねじ部１６
Ｂの方が硬度である。Further, there is a difference in hardness between the material of the male screw portion 14B and the material of the female screw portion 16B.
B has a higher hardness.
【００３２】しかして、このフェルトペン２の台形ねじ
の螺合構造１２Ｂによれば、ねじ山部分３８のねじ山角
αおよび谷底部分４０の谷底角α’が異角度であって
も、ねじ山角αを形成するねじ山部分３８および谷底角
α’を形成する谷底部分４０のそれぞれのかみ合い面３
８ｃ 1 ・３８ｃ 2 、４０ｃ 1 ・４０ｃ 2 のうち、ねじ山角α
を形成するかみ合い面３８ｃ 1 ・３８ｃ 2 の一方のかみ合
い面３８ｃ1と、谷底角α’を形成するかみ合い面４０
ｃ 1 ・４０ｃ 2 の一方のかみ合い面４０ｃ 1 とは面接触
し、谷底角α’を形成する他方のかみ合い面４０ｃ
2 は、当該他方のかみ合い面４０ｃ 2 を有しない、雄ねじ
部１６Ｂのねじ山部分３８に係る頂点３８ 1 ・３８ 2 の一
方３８ 1 と縦断面で見て点接触の状態で当接しているの
で、スムースな回転をしながら雄ねじ部１６Ｂと雌ねじ
部１４Ｂとが螺合するようになる。According to the threaded structure 12B of the trapezoidal screw of the felt pen 2, even if the thread angle α of the thread part 38 and the root angle α 'of the root part 40 are different angles, the thread The respective mating surfaces 3 of the thread portion 38 forming the angle α and the root portion 40 forming the root angle α ′
8c 1 · 38c 2 , 40c 1 · 40c 2
And one of the mating surfaces 38c 1 of the engagement surface 38c 1 · 38c 2 which forms a forms a root angle alpha 'meshing surface 40
c 1 · 40c in surface contact with one of the engagement surface 40c 1 of 2, the other mating surface 40c which forms a root angle alpha '
2, no engagement surface 40c 2 of the other, since the contact state of the contact points when viewed with one 38 1 of the vertex 38 1, 38 2 of the threaded portion 38 of the male thread portion 16B in longitudinal section Then, the male screw 16B and the female screw 14B are screwed together with smooth rotation.
【００３３】しかも、雄ねじ部１６Ｂと雌ねじ部１４Ｂ
とでは、雄ねじ部１６Ｂの方が材質が硬いので、例え
ば、ホルダー６に対して液収納容器７を回転することに
より、ホルダー６の雌ねじ部１４Ａと液収納容器７の雄
ねじ部１６Ａとを螺合して行くと、図５に示す不完全ね
じ部１７において材質の硬い雄ねじ部１６Ｂに係る頂点
３８ 1 が材質の軟らかい雌ねじ部１４Ｂの他方の面４０
ｃ 2 に食い込むようになる。このため、雄ねじ部１６Ｂ
と雌ねじ部１４Ｂとはロック状態になるので、この変形
例にあっても経時的変化や強い外力を受けてもねじが緩
まないようにすることができるとともに、ねじ部が食い
込むことにより接触部の密着性が高くなり、ねじ部から
の液漏れを防止できる。Moreover, the male screw part 16B and the female screw part 14B
Since the material of the male screw portion 16B is harder, for example, by rotating the liquid container 7 with respect to the holder 6, the female screw portion 14A of the holder 6 and the male screw portion 16A of the liquid container 7 are screwed together. If you go, the other surface 40 of the soft female thread portion 14B vertices 38 1 according to the rigid male thread portion 16B of a material is a material in the incomplete thread portion 17 shown in FIG. 5
so bite into the c 2. For this reason, the male screw portion 16B
The female screw portion 14B and the female screw portion 14B are locked, so that even in this modified example, the screw can be prevented from being loosened even when subjected to a temporal change or a strong external force, and the screw portion cuts into the contact portion. Adhesion is increased, and liquid leakage from the screw portion can be prevented.
【００３４】また、この変形例にあっても、広い角度の
谷底角α’を有する雌ねじ部１４Ｂと、これよりも狭い
角度のねじ山角αを有する雄ねじ部１６Ｂとからなるの
で、雄ねじ部１６Ｂまたは雌ねじ部１４Ｂの形状に変化
を付けることができる。Also in this modified example, since the female screw portion 14B having the wide angle root angle α 'and the male screw portion 16B having the screw angle α smaller than this angle, the male screw portion 16B is formed. Alternatively, the shape of the female screw portion 14B can be changed.
【００３５】[0035]
【発明の効果】請求項１ないし３記載の本発明台形ねじ
の螺合構造によれば、経時的変化や強い外力を受けても
ねじが緩まないようにできるとともに、ねじ部が食い込
むことにより接触部の密着性が高くなり、ねじ部からの
液漏れを防止できる。請求項２または３記載の本発明台
形ねじの螺合構造によれば、雄ねじ部および雌ねじ部の
設計の自由度を広げることができる。According to the screwing structure of the trapezoidal screw according to the present invention , the screw can be prevented from being loosened even when subjected to a temporal change or a strong external force , and the screw portion is not bitten.
The contact area of the contact
Liquid leakage can be prevented. According to the screw structure of the trapezoidal screw according to the second or third aspect of the present invention, the degree of freedom in designing the male screw portion and the female screw portion can be increased.
【図１】本発明に係る台形ねじの螺合構造１Ａの一部切
り欠き要部拡大斜視図である。FIG. 1 is an enlarged perspective view of a partially cut-away main part of a threaded structure 1A of a trapezoidal screw according to the present invention.
【図２】図１の台形ねじの螺合構造の雄ねじ部と雌ねじ
部とを説明のために離間して示す要部概略図である。FIG. 2 is a schematic view of a main part of the male screw part and the female screw part of the screw structure of the trapezoidal screw shown in FIG.
【図３】本発明に係る台形ねじの螺合構造１Ｂの一部切
り欠き要部拡大斜視図である。FIG. 3 is an enlarged perspective view of a main part of a trapezoidal screw screwing structure 1B according to the present invention, which is partially cut away.
【図４】図３の台形ねじの螺合構造の雄ねじ部と雌ねじ
部とを説明のために分解して示す要部概略図である。FIG. 4 is a schematic view of a main part in which a male screw part and a female screw part of the screwing structure of the trapezoidal screw of FIG. 3 are exploded for explanation.
【図５】従来技術を示す図である。FIG. 5 is a diagram showing a conventional technique.
【図６】従来技術の要部一部拡大断面図である。FIG. 6 is a partially enlarged cross-sectional view of a main part of a conventional technique.
１Ａ…台形ねじの螺合構造 １４Ａ…雌ねじ部 １６Ａ…雄ねじ部 １８…雄ねじ部のねじ山部分 １８ｃ 1 …ねじ山部分のかみ合い面（面接触する一方の
かみ合い面） １８ｃ 2 …ねじ山部分のかみ合い面（点接触する他方の
かみ合い面） ２０…雌ねじ部の谷底部分 ２０ｃ 1 …谷底部分のかみ合い面（面接触する一方のか
み合い面） ２０ｃ 2 …谷底部分のかみ合い面 ２０ 1 …点接触する頂点の一方 １Ｂ…台形ねじの螺合構造 １４Ｂ…雌ねじ部 １６Ｂ…雄ねじ部 ３８…雄ねじ部のねじ山部分 ３８ｃ 1 …ねじ山部分のかみ合い面（面接触する一方の
かみ合い面） ３８ｃ 2 …ねじ山部分のかみ合い面（点接触する他方の
かみ合い面） ４０…雌ねじ部の谷底部分 ４０ｃ 1 …谷底部分のかみ合い面（面接触する一方のか
み合い面） ４０ｃ 2 …谷底部分のかみ合い面 ３８ 1 …点接触する頂点の一方 α …雄ねじ部のねじ山部分におけるねじ山角 α’…雌ねじ部の谷底部分における谷底角1A ... screwed structure 14A ... (one engagement surface in surface contact) meshing surface of the threaded portion 18c 1 ... threaded portion of the female screw portion 16A ... external thread portion 18 ... male screw portion of the trapezoidal thread 18c 2 ... meshing of the threaded portion face (the other engagement surface for point contact) 20 ... mating face of the root portion 20c 1 ... trough bottom of the internally threaded portion (one engagement surface for surface contact) 20c 2 ... of trough bottom mating surfaces 20 1 ... vertex point contact On the other hand, 1B: screwing structure of trapezoidal screw 14B: female screw part 16B: male screw part 38: thread part of male screw part 38c 1 ... meshing surface of thread part (one meshing surface that comes into surface contact) 38c 2 ... (the other mating surfaces of point contact) 40 ... (the one engagement surface in surface contact) meshing surfaces of the root portions 40c 1 ... trough bottom of the internally threaded portion 40c 2 ... valley portion mating surface Root angle at the valley bottom portions of the thread angle alpha '... internal thread portion of the threaded portion of one alpha ... male screw portion of vertices mating surface 38 1 ... point contact
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) F16B 33/02 B43K 23/08 F16B 39/30 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) F16B 33/02 B43K 23/08 F16B 39/30
Claims (3)
取付けられる液収容器を備え、前記ホルダと液収容器と
を螺着するペンの螺合構造において、 螺合部は 、雄ねじ部と雌ねじ部とからなり、 これらのかみ合い部分である前記雄ねじ部のねじ山部分
および前記雌ねじ部の谷底部分のそれぞれのねじ山角お
よび谷底角が異角度に形成され、 前記ねじ山角形成のねじ山部分および前記谷底角形成の
谷底部分のそれぞれのかみ合い面のうち、ねじ山角形成
の一方のかみ合い面と谷底角形成の一方のかみ合い面と
は面接触し、 当該一方のかみ合い面に対する、前記ねじ山角形成の他
方のかみ合い面または谷底角形成の他方のかみ合い面の
うちのいずれか一方の他方のかみ合い面は、当該他方の
かみ合い面を有しない、雄ねじ部のねじ山部分または雌
ねじ部の谷底部分に係る頂点の一方と縦断面視点接触状
態で当接し、 前記雄ねじ部と前記雌ねじ部とではその材質に硬度差を
設けたことを特徴とする台形ねじの螺合構造。1. A holder for holding a pen body, and the holder
Comprising a liquid container to be attached, the holder and the liquid container
In the screwing structure of the pen, the screwing portion includes a male screw portion and a female screw portion, and the thread portion of the male screw portion and the thread portion of the root portion of the female screw portion, which are the meshing portions. The angle and the root angle are formed at different angles, and among the meshing surfaces of the thread portion of the thread angle formation and the root portion of the root angle formation, one of the engagement surfaces of the thread angle formation and the root surface of the root angle formation are formed. One of the meshing surfaces is in surface contact with one of the meshing surfaces, and one of the other meshing surfaces of the thread angle formation and the other meshing surface of the root angle formation with respect to the one meshing surface is the other meshing surface. It does not have the other meshing surface and abuts on one of the vertices of the thread portion of the male screw portion or the root portion of the female screw portion in a vertical cross-section viewpoint contact state, and the male screw portion and the female screw portion A threaded connection structure for trapezoidal screws, characterized by a difference in hardness between the materials.
じ部の谷底部分の谷底角よりも広い角度にしたことを特
徴とする請求項１記載の台形ねじの螺合構造。2. The screwing structure of a trapezoidal screw according to claim 1, wherein the thread angle of the thread portion of the male screw portion is wider than the root angle of the root portion of the female screw portion.
のねじ山部分のねじ山角よりも広い角度にしたことを特
徴とする請求項１記載の台形ねじの螺合構造。3. The screwing structure of a trapezoidal screw according to claim 1, wherein the root angle of the root portion of the female thread portion is wider than the thread angle of the thread portion of the male screw portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25332893A JP3200260B2 (en) | 1993-10-08 | 1993-10-08 | Screw structure of trapezoidal screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25332893A JP3200260B2 (en) | 1993-10-08 | 1993-10-08 | Screw structure of trapezoidal screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07110022A JPH07110022A (en) | 1995-04-25 |
| JP3200260B2 true JP3200260B2 (en) | 2001-08-20 |
Family
ID=17249784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25332893A Expired - Fee Related JP3200260B2 (en) | 1993-10-08 | 1993-10-08 | Screw structure of trapezoidal screw |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3200260B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE524296C2 (en) * | 2002-05-21 | 2004-07-20 | Verax Engineering Ab | Method of designing and manufacturing threads of a threaded member, a threaded member designed / manufactured according to the method, and a screw joint comprising such a member |
| JP4797172B2 (en) * | 2005-03-23 | 2011-10-19 | 国立大学法人佐賀大学 | screw |
| WO2008010414A1 (en) * | 2006-07-21 | 2008-01-24 | Konica Minolta Opto, Inc. | Cutting oscillator, oscillating cutting unit, machining apparatus, shaping mold and optical device |
| JP4741719B2 (en) * | 2006-08-01 | 2011-08-10 | 株式会社清水工業所 | Parts coupling device |
| JP2010229811A (en) * | 2010-06-16 | 2010-10-14 | Glenn A Reynolds | Coaxial joint system |
| JP7249301B2 (en) * | 2020-03-17 | 2023-03-30 | 株式会社鷺宮製作所 | Fixing structure of adjustment screw mechanism, valve device, and refrigeration cycle system |
| JP7303143B2 (en) * | 2020-03-18 | 2023-07-04 | 株式会社鷺宮製作所 | Screw fixation structure, valve device, and refrigeration cycle system |
-
1993
- 1993-10-08 JP JP25332893A patent/JP3200260B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07110022A (en) | 1995-04-25 |
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