JP3219985B2 - Synthetic resin shaped material having screw holes and connecting device for synthetic resin shaped material - Google Patents
Synthetic resin shaped material having screw holes and connecting device for synthetic resin shaped materialInfo
- Publication number
- JP3219985B2 JP3219985B2 JP30822795A JP30822795A JP3219985B2 JP 3219985 B2 JP3219985 B2 JP 3219985B2 JP 30822795 A JP30822795 A JP 30822795A JP 30822795 A JP30822795 A JP 30822795A JP 3219985 B2 JP3219985 B2 JP 3219985B2
- Authority
- JP
- Japan
- Prior art keywords
- screw
- synthetic resin
- screw hole
- shaped material
- resin shaped
- 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
- Lining Or Joining Of Plastics Or The Like (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、サッシ窓枠やサッ
シ障子や大型の額などの枠組みに使用される合成樹脂製
形材、とくに、ビス孔を有するもの、及びビス孔を有す
る合成樹脂製形材の接続装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin shape used for a frame such as a sash window frame, a sash shoji or a large forehead, in particular, a material having a screw hole and a synthetic resin having a screw hole. The present invention relates to a connecting device for a profile.
【0002】[0002]
【従来の技術】図5は、従来の合成樹脂製形材20に形
成されていたビス孔21を、サッシ窓枠の下枠に形成さ
れた場合の例によって示す断面図である。図示のよう
に、従来のビス孔21は、矩形の各辺の中央に凸部22
を設けた、ほぼ矩形の断面形状を有している。2. Description of the Related Art FIG. 5 is a sectional view showing an example in which a screw hole 21 formed in a conventional synthetic resin shape member 20 is formed in a lower frame of a sash window frame. As shown in the figure, a conventional screw hole 21 has a projection 22 at the center of each side of a rectangle.
And has a substantially rectangular cross-sectional shape.
【0003】そして、図6に示すように、このビス孔2
1を有する形材20を他の形材30に直角に当接して接
続する場合は、形材20の端面を形材30の壁31に直
角に当接し、その壁31に設けてあるビス貫通孔32か
らタッピングビス40を形材20のビス孔21に強く押
しながら、ねじ込む。[0003] As shown in FIG.
In the case where the profile 20 having the shape 1 is connected to the other profile 30 at right angles to the connection, the end face of the profile 20 abuts at right angles to the wall 31 of the profile 30, and the screw penetration provided on the wall 31 is provided. The tapping screw 40 is screwed into the screw hole 21 of the profile 20 while strongly pressing the screw from the hole 32.
【0004】この際に、タッピングビス40は、図7に
示すように、その雄ねじ部の外周面の4か所のタッピン
グビスの軸方向に連続する直線状領域において、ビス孔
21の各凸部22を押圧し、これにめねじを切りなが
ら、ねじ込まれる。At this time, as shown in FIG. 7, the tapping screws 40 are provided at respective convex portions of the screw holes 21 in four axially continuous linear regions of the outer peripheral surface of the male screw portion. 22 is pressed and screwed into this while turning the female thread.
【0005】[0005]
【発明が解決しようとする課題】しかしながら、上記断
面ほぼ矩形のビス孔21には、次のような問題がある。
すなわち、第1に、ビス孔の断面形状が、4個の凸部を
有する複雑な形状であるため、形材押し出し用金型の製
作工数が非常に多く、従って、金型製作費が高額にな
る。However, the screw hole 21 having a substantially rectangular cross section has the following problems.
That is, first, since the cross-sectional shape of the screw hole is a complicated shape having four projections, the number of manufacturing steps of the die for extruding the profile is extremely large, and therefore, the die manufacturing cost is high. Become.
【0006】第2に、ビス孔の断面形状が複雑であるた
め、前記金型による樹脂材料押し出し時に、樹脂材料の
流れに渦が生じ易い結果、成形後のビス孔の形状が設計
通りの完全な矩形にならず、平行四辺形状に歪むなどし
て、形状が安定しない。Second, since the cross-sectional shape of the screw hole is complicated, when the resin material is extruded by the mold, the flow of the resin material is likely to be swirled. As a result, the shape of the screw hole after molding is completely as designed. The shape is not stable because it does not become a rectangular shape and is distorted into a parallelogram.
【0007】従って、図5に例示するように、2個以上
のビス孔21を有する形材20を形材30に接続する場
合は、形材30の壁31に前記ビス孔に対応する2個の
ビス貫通孔32を設け、一つのビス貫通孔からタッピン
グビス(以下、単にビスという)を一方のビス孔にねじ
込んだ後に、他方のビス貫通孔から他のビスを他方のビ
ス孔にねじ込むのであるが、先のビス孔の形状が歪んで
いるときは、とくに後のビスの中心とビス貫通孔の中心
とが合致しないため、ねじ込まれるビスがビス孔の中心
に入り難く、ビスのねじ込み作業が容易にできない、枠
体の組立精度が良くない、無理にビスをねじ込むと、ビ
ス貫通孔の周辺が破壊されたり、ビス孔の各凸部22に
対するねじ切り量が不均等になって、ビスとビス孔との
結合強度が不完全になったりする、などの様々な不具合
が生じていた。Therefore, as shown in FIG. 5, when connecting a profile 20 having two or more screw holes 21 to a profile 30, two holes corresponding to the screw holes are formed in a wall 31 of the profile 30. After screwing a tapping screw (hereinafter simply referred to as a screw) from one screw through hole into one screw hole, another screw from the other screw through hole is screwed into the other screw hole. However, when the shape of the previous screw hole is distorted, the center of the screw and the center of the screw through hole do not match, so the screw to be screwed is difficult to enter the center of the screw hole, and screwing work of the screw If the screw is forcibly screwed in, the periphery of the screw through hole will be destroyed, or the amount of thread cut for each convex portion 22 of the screw hole will be uneven, and the screw will not be easily screwed. Incomplete bond strength with screw hole Or becomes, a variety of problems, such as had occurred.
【0008】本発明は、上記の点に鑑みてなされたもの
であり、形材押し出し成形時のビス孔の形状安定性、及
び、形材で作られる枠体の組立精度が高まり、ビスねじ
込み作業が容易にでき、ビスによる形材の接続強度が増
大されるビス孔の形状を提供することを第一の目的とす
る。また、上記ビス孔を有する合成樹脂製形材を確実に
強固に接続できる接続装置を提供することを、第二の目
的とする。SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has improved the shape stability of a screw hole at the time of extruding a profile and the assembling accuracy of a frame made of the profile, and has a screw screwing operation. It is a first object of the present invention to provide a shape of a screw hole in which a screw can be easily formed and connection strength of a shape member by the screw is increased. It is a second object of the present invention to provide a connection device that can securely and firmly connect the synthetic resin shaped material having the screw holes.
【0009】[0009]
【課題を解決するための手段】上記第一の目的を達成す
るため、本発明による合成樹脂性形材は、ビス孔の中空
部の断面形状をほぼ三角形にしたことを特徴としてい
る。In order to achieve the first object, a synthetic resin profile according to the present invention is characterized in that the cross section of the hollow portion of the screw hole is substantially triangular.
【0010】また、上記第二の目的を達成するため、本
発明による接続装置は、中空部の断面形状をほぼ三角形
にしたビス孔を有する合成樹脂製形材と、雄ねじの外径
が前記ビス孔の前記三角形の三辺に内接する円の径より
も大きく、かつ、前記内接円と共通の中心をもち、その
中心から前記三角形の最も近い頂点を通る円の径よりも
小さいビスとからなることを特徴としている。In order to achieve the second object, the connecting device according to the present invention comprises a synthetic resin shaped member having a screw hole having a hollow portion having a substantially triangular cross section, and a male screw having an outer diameter of the screw. A screw having a diameter larger than the diameter of a circle inscribed on the three sides of the triangle of the hole and having a common center with the inscribed circle and smaller than the diameter of a circle passing from the center to the nearest vertex of the triangle. It is characterized by becoming.
【0011】[0011]
【発明の実施の形態】次に、本発明の実施の形態につい
て、図面に基づいて説明する。図1は形材の一例の端面
図、図2は形材の他の例の端面図である。本発明は、サ
ッシ窓枠、サッシ障子、大型の額などの、枠組みに用い
られる各種の合成樹脂性形材に適用することができる。Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an end view of an example of a profile, and FIG. 2 is an end view of another example of a profile. INDUSTRIAL APPLICABILITY The present invention can be applied to various synthetic resin profiles used for the framework, such as sash window frames, sash shojis, and large foreheads.
【0012】図1は、サッシ窓枠の下枠に用いられる形
材1に、本発明によるビス孔BHを2個成形した例を示
している。また、図2は、サッシ障子の下框に用いられ
る形材2に、本発明によるビス孔BHを成形した例を示
している。FIG. 1 shows an example in which two screw holes BH according to the present invention are formed in a profile 1 used for a lower frame of a sash window frame. FIG. 2 shows an example in which a screw hole BH according to the present invention is formed in a shape member 2 used for a lower frame of a sash shoji.
【0013】本発明による合成樹脂性形材のビス孔BH
は、その中空部の断面形状がほぼ三角形にしてある。三
角形は、正三角形であることが最も望ましい。しかし、
二等辺三角形、その他の三角形でも良い。断面形状が比
較的単純な三角形であるので、樹脂材料成形時及び成形
後の形状安定性が高い。また、三角形の各頂点は、図示
の例のように、丸みを有することが、成形時の樹脂材料
の流動性を高め、形状安定性を一層高めるために有効で
ある。The screw hole BH of the synthetic resin material according to the present invention
Has a substantially triangular cross section. Most preferably, the triangle is an equilateral triangle. But,
It may be an isosceles triangle or another triangle. Since the cross-sectional shape is a relatively simple triangle, the shape stability during and after molding of the resin material is high. Further, it is effective that each vertex of the triangle has a rounded shape as in the illustrated example, in order to enhance the fluidity of the resin material at the time of molding and further enhance the shape stability.
【0014】図3は、ビス孔の大きさとビスの雄ねじ部
の径との関係を説明する説明図、図4は、前記ビス孔B
Hにビス3がねじ込まれた状態を示す断面図である。FIG. 3 is an explanatory view for explaining the relationship between the size of the screw hole and the diameter of the male screw portion of the screw, and FIG.
It is sectional drawing which shows the state which screw 3 was screwed in H.
【0015】上記の形状のビス孔BHを有する形材1,
2を他の形材に直角に当接して接続するために用いられ
るビス3は、図3に示すように、雄ねじ部Sの外径が前
記ビス孔BHの内面の三角形の三辺に内接する円ICの
径よりも大きく、かつ、前記内接円と共通の中心をも
ち、その中心から前記三角形の最も近い頂点(ビス孔が
正三角形である場合は、いずれの頂点も中心から等距離
である)を通る円OCの径よりも小さい。A profile 1 having a screw hole BH having the above shape
As shown in FIG. 3, the screw 3 used to abut the second member 2 at right angles to another shape member to connect it to the other member has an outer diameter of the male screw portion S inscribed on three sides of a triangle on the inner surface of the screw hole BH. It is larger than the diameter of the circle IC, has a common center with the inscribed circle, and has a vertex closest to the center of the triangle (if the screw hole is a regular triangle, all vertices are equidistant from the center). Is smaller than the diameter of the circle OC passing through the given circle.
【0016】ビスの外径の条件を上記のようにした場合
は、このビス3をビス孔BHにねじ込む際は、図3,4
に示されるように、ビスの雄ねじ部の外周部分がビス孔
の三角形の3辺の中央部分に押圧接触され、そこにねじ
切りをしながら、進行される。When the condition of the outer diameter of the screw is set as described above, when screwing the screw 3 into the screw hole BH, the screw 3 shown in FIGS.
As shown in (1), the outer peripheral portion of the external thread portion of the screw is pressed against and touches the central portion of the three sides of the triangle of the screw hole, and the screw is threaded there and the screw is advanced.
【0017】そして、ビス孔が正三角形である場合は、
ビスの外周部分が均等の力で三角形の各辺の中央部分に
押圧される。従って、ビスはドライバから押圧回転力を
与えられる時に、ビスの中心線に沿って真っ直ぐ、すな
わち、いずれの方向にもずれることなく、進行する。従
って、接続される形材同志の相対的移動がないので、組
立精度が向上する。If the screw hole is a regular triangle,
The outer peripheral portion of the screw is pressed against the central portion of each side of the triangle with an equal force. Therefore, the screw advances straight along the center line of the screw, that is, without shifting in any direction, when given a pressing rotational force from the driver. Accordingly, there is no relative movement between the connected profile members, so that the assembly accuracy is improved.
【0018】また、ビスのビス孔に対する接触位置は、
外周方向の3点と、従来よりよりも少ないので、摩擦抵
抗が少なく、ねじ込み作業にとくに大きな力を要求され
ないため、作業が容易であり、疲労も少ない。The contact position of the screw with the screw hole is as follows:
Since there are three points in the outer circumferential direction, which are smaller than those in the related art, there is little frictional resistance, and since a particularly large force is not required for the screwing work, the work is easy and the fatigue is small.
【0019】さらに、ビスの外径条件を上記のように設
定した場合は、ビスの雄ねじ部がビス孔にねじ込まれる
際に、図3,4に示されているように、ビス孔の各頂点
部分にビスの外周方向に間隔をもって空隙Gが形成され
る。この空隙が存在すると、ビスがねじ込まれる際に発
生する合成樹脂形材の切削屑(切粉)がその空隙に収容
されることとなるため、切削屑がビスのその後のねじ込
みの障害物にならないので、ビスのねじ込み作業を、最
初から最後まで軽快に行うことができる。Further, when the outer diameter condition of the screw is set as described above, when the male screw portion of the screw is screwed into the screw hole, as shown in FIGS. A gap G is formed in the portion at intervals in the outer circumferential direction of the screw. If this gap is present, the cutting chips (cutting chips) of the synthetic resin material generated when the screw is screwed are accommodated in the gap, so that the cutting chips do not become an obstacle to the screwing of the screw afterwards. Therefore, the screwing work of the screw can be performed lightly from the beginning to the end.
【0020】[0020]
【発明の効果】以上に説明したように、本発明の形材に
よれば、ビス孔は三角形であるので、形材成形時又は成
形後のビス孔の形状安定性が非常に高くなる。また、ビ
ス孔にねじ込まれるビスは、ビス孔の3辺に均一に当た
り易くなり、ビスと形材の樹脂材料の馴染みが良くな
る。従って、ビスがビス孔に入り易く、枠体の組立精度
が著しく向上する。また、ビスを無理にねじ込むことも
ないので、接続される形材のビス貫通孔に割れが生じた
り、ビス孔が部分的に破壊されることもない。さらに、
ビスとビス孔の内面は、3点接触であるため、ビスの回
転に対する摩擦抵抗が少ないから、ねじ込み作業が容易
にできる。As described above, according to the profile of the present invention, since the screw holes are triangular, the shape stability of the screw holes at the time of molding or after molding is extremely high. Further, the screw screwed into the screw hole easily and uniformly hits the three sides of the screw hole, and the familiarity between the screw and the resin material of the shape material is improved. Therefore, the screws easily enter the screw holes, and the assembling accuracy of the frame is significantly improved. In addition, since the screw is not forcibly screwed in, the screw through hole of the shape member to be connected is not cracked or the screw hole is partially broken. further,
Since the screw and the inner surface of the screw hole are in three-point contact, the frictional resistance against the rotation of the screw is small, so that the screwing operation can be easily performed.
【0021】そして、本発明の形材接続装置によれば、
ビスのねじ込み時に、雄ねじ部の外周が3点において確
実にかつ適度な力をもって樹脂材料を切削しながら進行
し、かつ、切削屑が、ビス孔の頂点部分の空隙に収容さ
れるので、ねじ込み作業を最初から最後まで軽快に行う
ことができる。According to the profile connecting device of the present invention,
At the time of screwing in the screw, the outer circumference of the male screw portion proceeds while cutting the resin material reliably and at an appropriate force at three points, and the cutting waste is stored in the gap at the apex of the screw hole. Can be performed lightly from the beginning to the end.
【図1】形材の一例の端面図である。FIG. 1 is an end view of an example of a profile.
【図2】形材の他の例の端面図である。FIG. 2 is an end view of another example of a profile.
【図3】ビス孔の大きさとタッピングビスの雄ねじ部の
径との関係を説明する説明図である。FIG. 3 is an explanatory diagram illustrating a relationship between the size of a screw hole and the diameter of a male screw portion of a tapping screw.
【図4】前記ビス孔BHにタッピングビス3がねじ込ま
れた状態の断面図である。FIG. 4 is a sectional view showing a state in which a tapping screw 3 is screwed into the screw hole BH.
【図5】従来の合成樹脂性形材のビス孔を示す端面図で
ある。FIG. 5 is an end view showing screw holes of a conventional synthetic resin material.
【図6】合成樹脂性形材の接続構造の一例を示す断面図
である。FIG. 6 is a cross-sectional view showing an example of a connection structure of a synthetic resin material.
【図7】ビス孔にタッピングビスがねじ込まれた状態を
示す断面図である。FIG. 7 is a sectional view showing a state in which a tapping screw is screwed into a screw hole.
1,2 合成樹脂性形材 3 タッピングビス BH ビス孔 G 空隙 1, 2 synthetic resin material 3 tapping screw BH screw hole G void
Claims (2)
したことを特徴とする合成樹脂製形材。1. A synthetic resin shaped material characterized in that a cross section of a hollow portion of a screw hole is substantially triangular.
孔を有する合成樹脂製形材と、雄ねじ部の外径が前記ビ
ス孔の三角形の三辺に内接する円の径よりも大きく、か
つ、前記内接円と共通の中心をもち、その中心から前記
三角形の最も近い頂点を通る円の径よりも小さいタッピ
ングビスとからなる合成樹脂製形材の接続装置。2. A synthetic resin shaped material having a screw hole having a substantially triangular cross section, and an outer diameter of a male screw portion is larger than a diameter of a circle inscribed in three sides of the triangle of the screw hole. And a tapping screw having a common center with the inscribed circle and having a diameter smaller than the diameter of a circle passing from the center to the nearest vertex of the triangle.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30822795A JP3219985B2 (en) | 1995-11-01 | 1995-11-01 | Synthetic resin shaped material having screw holes and connecting device for synthetic resin shaped material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30822795A JP3219985B2 (en) | 1995-11-01 | 1995-11-01 | Synthetic resin shaped material having screw holes and connecting device for synthetic resin shaped material |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH09123289A JPH09123289A (en) | 1997-05-13 |
JP3219985B2 true JP3219985B2 (en) | 2001-10-15 |
Family
ID=17978464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30822795A Expired - Fee Related JP3219985B2 (en) | 1995-11-01 | 1995-11-01 | Synthetic resin shaped material having screw holes and connecting device for synthetic resin shaped material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3219985B2 (en) |
-
1995
- 1995-11-01 JP JP30822795A patent/JP3219985B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH09123289A (en) | 1997-05-13 |
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