JPS627821Y2

JPS627821Y2 -

Info

Publication number: JPS627821Y2
Application number: JP13540081U
Authority: JP
Priority date: 1981-09-11
Filing date: 1981-09-11
Publication date: 1987-02-23
Also published as: JPS5839967U

Description

【考案の詳細な説明】本考案は蝶番に関するものである。従来２部品を開閉自在に連結する蝶番におい
て、任意の開き角で停止自在としたものは、金属
板の２部品の端部を筒状に屈成して軸を貫通した
もの、軸を貫通させた２部品の対接面に皿状の金
属バネやゴムなどの弾性体を介在させたもの、ま
た軸孔の中に金属板を筒状に屈曲させたスプリン
グピンを嵌挿したものなどがある。いずれの場合
にも金属板を筒状に屈成するのも加工が難しく均
一にきれいに仕上らないために開閉トルクが不安
定となり、また金属であるので相手方の部品を損
傷（いわゆるかじり）したり、錆たりするなどの
不都合がある。またゴムなどを用いると大きいト
ルクを必要とする場合には耐久性に問題があるな
ど、種々の不都合があつた。本考案は上記従来の欠点を除去し、プラスチツ
クの成形品を摺動体として用いるので、成型によ
り形が安定するので一定のトルクが容易に得ら
れ、錆やかじりがなく、組立、分解が容易な蝶番
を提供するものである。本考案の実施例について説明する。第１〜３図において、１および２は揺動自在に
連結される二つの部品である。一方の部品１の一
端部には雌ねじを形成した揺動中心孔３が形成し
てある。揺動中心孔３の両端に対向位置して、他
方の部品２に摺動孔４，４が形成してある。５は
合成樹脂製の摺動体である。摺動体５は中心ボス部６を設けてあり、この中
心ボス部の一側から外周方向へ基部７が延伸形成
してある。基部７の両側面からは弓形の弾性腕部
８ａ，８ｂが延伸している。すなわちこの腕部は
中心ボス部６の外周面との間に間隙をおいて延伸
するもので、基部近くの間隙９ａから次第に拡開
して先端部の間隙９ｂに至つている。両腕部８
ａ，８ｂの先端間は離れているので、腕部は中心
ボス部に向つて十分にたわむことができる。この
例では基部７の中心角R₁は約90度であるが、こ
れに限定されるものではなく、弾性腕部が十分に
たわみ得る長さに延伸し得ればよく、２本の弾性
腕部の占める中心角をR₂とすると、R₂＞R₁が望
ましい。基部７と弾性腕部８ａ，８ｂとの軸方向の長さ
および腕部の長さと厚さは、その外周面と摺動孔
４の内面との間に十分な摩擦力が得られる大きさ
に設定してある。摺動体５は中心ボス部６によりねじ１０を用い
て揺動中心孔３に固着してある。また摺動孔４の
内面には、基部７の外周面と、弾性腕部８ａ，８
ｂを中心方向へたわませた状態における外周面と
が圧接している。なお組立てる際は、あらかじめ
部品２の摺動孔４内へ摺動体５をその弾性腕部を
たわませて圧入し、これを部品１の摺動中心孔３
の両端に位置させ、ねじ１０を中心ボス部７を貫
通させて揺動中心孔３にねじ込めばよい。したがつて摺動体５はねじ１０を介して部品１
に固着され、部品２は弾性腕部８ａ，８ｂの弾性
力により摩擦的に摺動体に連結される。摺動孔４
の内面と摺動体５との間の摩擦力は、基部７と弾
性腕部８ａ，８ｂとの外周面の面積と腕部の弾性
力の大きさとにより定まるので、摺動体５を形成
するに当つて、これらを所望の大きさに設定して
おけば、部品１と２との開閉時に、部品２には常
に安定した開閉トルクが得られ、このために部品
２を所望の開き角に開いて停止させることができ
る。第４〜６図は他の例を示すもので、部品１１に
設けた摺動中心孔１３には雌ねじを設けていな
い。部品１２には２枚の軸受板２０ａ，２０ｂが
ねじ３０ａ，３０ｂにより固着してあり、この軸
受板の対向面に摺動孔１４ａ，１４ｂが設けてあ
る。摺動体１５の中心ボス部１６は軸方向へ長く形
成してあり、摺動中心孔１３内へ圧入可能であ
る。中心ボス部１６の一側部に設けた基部１７は
肉薄であるので、外周部を軸方向に立設し、弾性
腕部１８ａ，１８ｂを同様にして延伸している。この実施例の組立てに際しては、まず摺動体１
５の中心ボス部１６を摺動中心孔１３に圧入し、
軸受板２０ａ，２０ｂの摺動孔１４ａ，１４ｂ内
に弾性腕部１８ａ，１８ｂを内方へたわませて圧
入し、その後両軸受板をねじ３０ａ，３０ｂによ
り他方の部品１２に固着すればよい。この実施例においても上例と同様に常に安定し
た開閉トルクが得られ、部品２を所望の開き角に
開いて停止させることができる。このように本考案によれば、プラスチツクの成
形品を摺動体として用いるので、一定のトルクに
設定することが容易であり、錆やかじりがなく、
組立、分解が容易であるなどの優れた効果があ
る。 [Detailed Description of the Invention] The present invention relates to a hinge. Conventional hinges that connect two parts so that they can be opened and closed can be stopped at any opening angle. There are also types in which an elastic body such as a dish-shaped metal spring or rubber is interposed between the opposing surfaces of two parts, and types in which a spring pin made of a metal plate bent into a cylindrical shape is inserted into the shaft hole. . In either case, bending a metal plate into a cylindrical shape is difficult to process, and the finish cannot be finished uniformly and neatly, making the opening/closing torque unstable, and since it is made of metal, it may damage (so-called galling) the other parts. , there are inconveniences such as rust. Furthermore, when rubber or the like is used, there are various disadvantages such as durability problems when a large torque is required. The present invention eliminates the above-mentioned conventional drawbacks and uses molded plastic as a sliding body, so the shape is stabilized by molding, so a constant torque can be easily obtained, there is no rust or galling, and assembly and disassembly are easy. It provides a hinge. An example of the present invention will be described. In Figs. 1 to 3, 1 and 2 are two parts that are swingably connected. A swing center hole 3 having a female thread is formed at one end of one of the parts 1. Sliding holes 4, 4 are formed in the other component 2 at opposite ends of the swing center hole 3. 5 is a sliding body made of synthetic resin. The sliding body 5 is provided with a central boss portion 6, and a base portion 7 is formed extending from one side of the central boss portion toward the outer circumference. Arch-shaped elastic arms 8a and 8b extend from both sides of the base 7. That is, this arm extends with a gap between it and the outer peripheral surface of the central boss 6, and gradually expands from a gap 9a near the base to a gap 9b at the tip. Both arms 8
Since the tips of a and 8b are separated, the arm can be sufficiently bent toward the central boss. In this example, the center angle R ₁ of the base 7 is about 90 degrees, but it is not limited to this, and it is sufficient that the elastic arms can be extended to a length that allows the two elastic arms to be sufficiently bent. Assuming that the central angle occupied by the part is _R2 , it is desirable that _R2 > _R1 . The axial length of the base 7 and the elastic arms 8a and 8b, as well as the length and thickness of the arms, are set to a size that provides a sufficient frictional force between the outer circumferential surface and the inner surface of the sliding hole 4. It has been set. The sliding body 5 is fixed to the swinging center hole 3 by means of a central boss portion 6 using a screw 10. Further, the inner surface of the sliding hole 4 includes the outer circumferential surface of the base 7 and the elastic arm portions 8a, 8.
b is in pressure contact with the outer circumferential surface in a state where it is bent toward the center. When assembling, press fit the sliding body 5 into the sliding hole 4 of the component 2 in advance by bending its elastic arm, and insert it into the sliding center hole 3 of the component 1.
The screws 10 may be inserted into the swing center hole 3 by passing through the center boss portion 7. Therefore, the sliding body 5 is connected to the component 1 via the screw 10.
The component 2 is frictionally connected to the sliding body by the elastic force of the elastic arms 8a and 8b. Sliding hole 4
The frictional force between the inner surface of the slider 5 and the slider 5 is determined by the area of the outer peripheral surface of the base 7 and the elastic arms 8a, 8b , and the magnitude of the elastic force of the arms. Therefore, if these are set to the desired size, a stable opening/closing torque will always be obtained for part 2 when parts 1 and 2 are opened and closed, and for this reason, part 2 can be opened to the desired opening angle. It can be stopped. 4 to 6 show other examples, in which the sliding center hole 13 provided in the component 11 is not provided with a female thread. Two bearing plates 20a, 20b are fixed to the component 12 by screws 30a, 30b, and sliding holes 14a, 14b are provided on opposing surfaces of the bearing plates. The central boss portion 16 of the sliding body 15 is formed to be long in the axial direction, and can be press-fitted into the sliding center hole 13. Since the base portion 17 provided on one side of the central boss portion 16 is thin, the outer peripheral portion thereof is erected in the axial direction, and the elastic arms 18a and 18b are similarly extended. When assembling this embodiment, first the sliding body 1
Press fit the center boss portion 16 of No. 5 into the sliding center hole 13,
The elastic arms 18a, 18b are bent inward and press-fitted into the sliding holes 14a, 14b of the bearing plates 20a, 20b, and then both bearing plates are fixed to the other component 12 with screws 30a, 30b. . In this embodiment as well, as in the above example, a stable opening/closing torque is always obtained, and the component 2 can be opened to a desired opening angle and then stopped. As described above, according to the present invention, since a molded plastic product is used as a sliding body, it is easy to set a constant torque, and there is no rust or galling.
It has excellent effects such as easy assembly and disassembly.

[Brief explanation of the drawing]

図面は本考案の実施例を示すもので、第１図は
第２図−線断面図、第２図は第１図−線
断面図、第３図は摺動体の拡大正面図、第４〜６
図は他の実施例を示すもので、第４図は第５図
−線断面図、第５図は第４図−線断面図、
第６図は摺動体の拡大正面図である。１，１１……一方の部品、２，１２……他方の
部品、２０ａ，２０ｂ……軸受板、３，１３……
揺動中心孔、４，１４ａ，１４ｂ……摺動孔、
５，１５……摺動体、６，１６……中心ボス部、
７，１７……基部、８ａ，８ｂ，１８ａ，１８ｂ
……弾性腕部、９ａ，９ｂ……間隙。 The drawings show an embodiment of the present invention; FIG. 1 is a cross-sectional view taken along the line of FIG. 2, FIG. 2 is a cross-sectional view taken along the line of FIG. 6
The figures show other embodiments; FIG. 4 is a sectional view taken along the line of FIG. 5; FIG. 5 is a sectional view taken along the line of FIG.
FIG. 6 is an enlarged front view of the sliding body. 1, 11... One part, 2, 12... Other part, 20a, 20b... Bearing plate, 3, 13...
Swing center hole, 4, 14a, 14b...sliding hole,
5 , 15 ...Sliding body, 6, 16...Center boss part,
7, 17...Base, 8a, 8b, 18a, 18b
...Elastic arm portion, 9a, 9b...Gap.

Claims

[Claims for Utility Model Registration] A center boss portion, a base portion extending from a part of the center boss portion toward the outer periphery, and a base portion extending gradually from the base portion to the outer circumferential surface of the boss portion. A sliding body made of synthetic resin is formed, consisting of two bow-shaped elastic arms that extend while expanding and face each other with their ends separated, and a swingable arm attached to one end of one of the parts that is swingably connected. A pivoting center hole is provided, and the center boss portion of the sliding body is fixed to this hole, and sliding holes are provided in the other component opposite to both ends of the pivoting center hole, and the sliding hole is provided on the inner surface of this hole. A hinge characterized in that the outer peripheral surfaces of the elastic arms and base of a moving body are in pressure contact.