【０００１】
【考案の属する技術分野】
本考案は、２本の手摺部材を連続して連結するための継ぎ手であって、特に連結部材を切断面を当接させて回転させることにより２本の手摺部材の延長線が交差する角度に合わせて利用可能な連続手摺用自在継ぎ手に関するものである。
【０００２】
【従来の技術】
近年バリアフリーの要請から階段や廊下等に用いられる手摺も図４の手摺の説明図に示されるように連続して連結する必要が生じてきた。この連続連結のための継ぎ手は各種角度に応じた形状の継ぎ手を用意するのが通常であったが、この不便さを解消するため、手摺部材の連結角度を変更可能な自在継ぎ手も開発されてきた。しかし、この種の自在継ぎ手は構造が複雑であり製作コストが高く、かつ、手摺取り付け作業時においても使い勝手が良いものではなかった。
【０００３】
【考案が解決しようとする課題】
本考案は、手摺部材を連続して連結する継ぎ手であって、手摺部材の連結角度に自在に対応でき、かつ、構造が簡単で手摺取り付け時においても作業が簡単に行いうる連続手摺用自在継ぎ手を提供せんとするものである。
【０００４】
【課題を解決するための手段】
本考案は上記課題を解決するため、２つの手摺部材を連続して連結する自在継ぎ手に以下の手段を採用する。第１に、等分に切断した略半球形状の連結部材を切断面を当接させて使用する自在継ぎ手とする。第２に、連結部材の外周に切断面に対し手摺部材差込方向が傾きを有する嵌合受け部を連結部材と一体に形成する。
【０００５】
第３に、一方の連結部材の中心軸から、他方の連結部材の中心軸に向かって回動固定用ねじを挿入固定する挿入穴を挿入口が外部に現れるように形成する。第４に、挿入側の連結部材の挿入穴が回動固定用ねじとの間に間隙が生じる大きさで、かつ挿入口が回動固定用ねじのねじ頭より小径に形成する。第５に、第１の連結部材の挿入穴より他方の連結部材に回動固定用ねじを挿入し両嵌合部の角度を調節した後、該回動固定用ねじを固定する。
【０００６】
【考案の実施の形態】
以下、図示の実施例と共に考案実施の形態について説明する。図１は、本考案に係る自在継ぎ手の正面説明図である。本考案は、第１の手摺部材１と第２の手摺部材２を連続して連結する自在継ぎ手３であって、略球形体を等分に切断した略半球形状の第１の連結部材４と第２の連結部材５とよりなるものである。実施例における自在継ぎ手３は木材を使用して製作されたものであるが、金属および樹脂（プラスチックおよびビニール）を利用することができる。
【０００７】
第１および第２の連結部材４，５の外周には、図２の分解断面図に示されるように切断面６，７に対し手摺部材１，２の差込方向が傾きを有する嵌合受け部８，９が形成されている。該傾きは、切断面６，７に対して嵌合受け部８，９の手摺部材１，２差込方向が約１３５度の傾きにすることが実用上好ましい。
【０００８】
上記角度にすれば嵌合受け部８，９が作り出す角度は９０度から１８０度となる。手摺が通常取り付けられる壁面のなす角度は９０度より鋭角となることはなく、上記角度で十分対応しうるものである。勿論この角度に限定されるわけではない。尚、実施例における嵌合受け部８，９は、第１および第２の連結部材４，５と一体に形成されている。
【０００９】
第１の連結部材４の中心軸から、第２の連結部材５の中心軸に向かって回動固定用ねじ１０の挿入穴１１が形成される。実施例における回動固定用ねじ１０には木ねじが利用されている。回動固定用ねじ１０の挿入側の第１の連結部材４の挿入穴１１は回動固定用ねじ１０との間に間隙が生じる大きさで挿入口１２が図２に示すように外部に現れ、かつ、回動固定用ねじ１０のねじ頭１３より小径の大きさに形成されている。
【００１０】
尚、図２に現れるように実施例では第２の連結部材５にも挿入穴１４が穿設されているが、この挿入穴１４は、回動固定用ねじ１０の径と合致する。また、連結部材４，５が実施例のごとく木材等の軟質材料の場合には、この挿入穴１４は必ずしも必要ではない。回動固定用ねじ１０が木ねじであれば、回転させながら第２の連結部材５に押し込むことができるからである。
【００１１】
以下、本考案に係る連続手摺用自在継ぎ手の利用方法について説明する。第１の連結部材４の挿入穴１１より回動固定用ねじ１０を第２の連結部材５に向かって回転挿入する。第２の連結部材５に回動固定用ねじ１０が挿入された状態で、第１の連結部材４と第２の連結部材５は連結されるれるが、挿入穴１１と回動固定用ねじ１０との間には間隙があるので、第１の連結部材４は回動固定用ねじ１０を支軸に自由に角度を変化させることができるのである。
【００１２】
両嵌合受け部８，９の連結角度を決定した後、さらに回動固定用ねじ１０を回転させ押し込むと、ねじ頭１３が、挿入穴１１の挿入口１２内面に押しつけられ、第１の連結部材４と第２の連結部材５とは固定されるのである。
【００１３】
【考案の効果】
本考案は如上のように構成されるため手摺部材を連続して連結する継ぎ手において、手摺部材の連結角度に自在に対応でき、かつ、構造が簡単で手摺取り付け時においても作業が簡単な連続手摺用自在継ぎ手となった。
【００１４ 】
さらに、本考案は切断した略半球形状の連結部材を切断面を当接させて使用するものであるため、手摺利用者が手で接する部分の表面が丸くなっており、安全な連続手摺用自在継ぎ手となった。
【図面の簡単な説明】
【図１】本考案に係る自在継ぎ手の正面説明図
【図２】自在継ぎ手の断面図
【図３】本考案の角度調節を示す説明図
【図４】本考案を利用した手摺の説明図
【符号の説明】
１，２．．．．．．．手摺部材
３．．．．．．．．．自在継ぎ手
４，５．．．．．．．連結部材
６，７．．．．．．．切断面
８，９．．．．．．．嵌合受け部
１０．．．．．．．．回動固定用ねじ
１１，１４．．．．．挿入穴
１２．．．．．．．．挿入口
１３．．．．．．．．ねじ頭[0001]
[Technical field to which the invention belongs]
The present invention is a joint for continuously connecting two handrail members, and in particular, by rotating the connecting member by bringing the cut surface into contact with the handrail member, the angle between the extension lines of the two handrail members intersects. The present invention relates to a universal handrail joint that can be used together.
[0002]
[Prior art]
In recent years, handrails used for stairs, corridors, and the like have been required to be continuously connected as shown in FIG. In general, joints for the continuous connection are prepared in accordance with various angles, but in order to solve this inconvenience, universal joints capable of changing the connection angle of the handrail member have been developed. Was. However, this type of universal joint has a complicated structure, is expensive to manufacture, and is not easy to use even when attaching a handrail.
[0003]
[Problems to be solved by the invention]
The present invention relates to a joint for continuously connecting handrail members, which can freely respond to the connection angle of the handrail members, has a simple structure, and can be easily operated even when handrails are attached. Is to be provided.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention employs the following means for a universal joint for continuously connecting two handrail members. First, a universal joint is used in which a substantially hemispherical connection member cut in equal parts is used with its cut surface abutting. Secondly, a fitting receiving portion in which the handrail member insertion direction is inclined with respect to the cut surface on the outer periphery of the connecting member is formed integrally with the connecting member.
[0005]
Third, an insertion hole for inserting and fixing a rotation fixing screw from the central axis of one connecting member toward the central axis of the other connecting member is formed so that the insertion opening appears to the outside. Fourth, the insertion hole of the connecting member on the insertion side is large enough to have a gap between the rotation fixing screw and the insertion opening is formed to have a diameter smaller than the screw head of the rotation fixing screw. Fifth, a rotation fixing screw is inserted into the other connection member from the insertion hole of the first connection member to adjust the angle of both fitting portions, and then the rotation fixing screw is fixed.
[0006]
[Embodiment of the invention]
Hereinafter, the embodiment of the invention will be described together with the illustrated embodiment. FIG. 1 is an explanatory front view of the universal joint according to the present invention. The present invention is a universal joint 3 for continuously connecting a first handrail member 1 and a second handrail member 2, wherein a first connection member 4 having a substantially hemispherical shape obtained by cutting a substantially spherical body into equal parts. It comprises the second connecting member 5. The universal joint 3 in the embodiment is manufactured using wood, but metal and resin (plastic and vinyl) can be used.
[0007]
As shown in the exploded cross-sectional view of FIG. Parts 8 and 9 are formed. It is practically preferable that the inclination of the handrail members 1 and 2 of the fitting receiving portions 8 and 9 with respect to the cut surfaces 6 and 7 be about 135 degrees.
[0008]
With the above angle, the angle created by the fitting receiving portions 8 and 9 is from 90 degrees to 180 degrees. The angle formed by the wall surface to which the handrail is normally attached does not become an acute angle of more than 90 degrees, and the above angle can sufficiently cope with the angle. Of course, it is not limited to this angle. The fitting receiving portions 8, 9 in the embodiment are formed integrally with the first and second connecting members 4, 5.
[0009]
An insertion hole 11 for the rotation fixing screw 10 is formed from the central axis of the first connecting member 4 toward the central axis of the second connecting member 5. A wood screw is used as the rotation fixing screw 10 in the embodiment. The insertion hole 11 of the first connecting member 4 on the insertion side of the rotation fixing screw 10 is large enough to form a gap between the rotation fixing screw 10 and the insertion port 12 appears outside as shown in FIG. In addition, it is formed to have a smaller diameter than the screw head 13 of the rotation fixing screw 10.
[0010]
In addition, as shown in FIG. 2, in the embodiment, an insertion hole 14 is also formed in the second connecting member 5, and the insertion hole 14 matches the diameter of the rotation fixing screw 10. When the connecting members 4 and 5 are made of a soft material such as wood as in the embodiment, the insertion hole 14 is not always necessary. If the rotation fixing screw 10 is a wood screw, it can be pushed into the second connecting member 5 while rotating.
[0011]
Hereinafter, a method for using the universal handrail universal joint according to the present invention will be described. The rotation fixing screw 10 is rotationally inserted toward the second connecting member 5 from the insertion hole 11 of the first connecting member 4. With the rotation fixing screw 10 inserted into the second connection member 5, the first connection member 4 and the second connection member 5 are connected, but the insertion hole 11 and the rotation fixing screw 10 are connected. Since there is a gap therebetween, the first connecting member 4 can freely change the angle about the rotation fixing screw 10 as a support shaft.
[0012]
After determining the connection angle between the two fitting receiving portions 8 and 9, when the rotation fixing screw 10 is further rotated and pushed in, the screw head 13 is pressed against the inner surface of the insertion hole 12 of the insertion hole 11, and the first connection is performed. The member 4 and the second connecting member 5 are fixed.
[0013]
[Effect of the invention]
Since the present invention is configured as described above, in a joint for continuously connecting the handrail members, a continuous handrail that can freely cope with the connection angle of the handrail member, has a simple structure, and is easy to operate even when the handrail is attached. Became a universal joint.
[0014]
Furthermore, since the present invention uses the cut substantially hemispherical connecting member with the cut surfaces in contact with each other, the surface of the part that the handrail user touches by hand is rounded, and it is safe for a continuous handrail. Became a fitting.
[Brief description of the drawings]
FIG. 1 is an explanatory front view of a universal joint according to the present invention; FIG. 2 is a sectional view of a universal joint; FIG. 3 is an explanatory view showing angle adjustment of the present invention; FIG. 4 is an explanatory view of a handrail using the present invention; Explanation of code]
1,2. . . . . . . Handrail member3. . . . . . . . . Universal joint 4,5. . . . . . . Connecting members 6, 7,. . . . . . . Cut surface 8,9. . . . . . . 10. Fitting receiving part . . . . . . . Rotation fixing screws 11, 14. . . . . Insertion hole 12. . . . . . . . Insertion slot 13. . . . . . . . Screw head
