JP3719463B2

JP3719463B2 - Handrail mounting device

Info

Publication number: JP3719463B2
Application number: JP1771097A
Authority: JP
Inventors: 佳男岩下
Original assignee: Naka Corp
Current assignee: Naka Corp
Priority date: 1997-01-17
Filing date: 1997-01-17
Publication date: 2005-11-24
Anticipated expiration: 2017-01-17
Also published as: JPH10196082A

Description

【０００１】
【発明の属する技術分野】
本発明は、建物用手摺において、手摺パイプを壁等の設置面に取付ける為の手摺取付装置の改良に関する。
【０００２】
【従来の技術】
本発明にかかる出願人は、本発明に関連する手摺取付装置を実開昭４８−９８９２１として出願している。該当公報記載の手摺取付装置は、図１６で示す様に、手摺パイプａと、手摺パイプａを挿通抱持する環状の手摺保持ブラケットｂと、壁等の設置面Ｗに対して手摺保持ブラケットｂを固定する固定ブラケットｃから構成されている。環状の手摺保持ブラケットｂには開放された部分ｄ、ｄ′があり、開放部ｄ、ｄ′の隙間をボルトｅにより閉じる構造になっている。開放部ｄ、ｄ′の隙間をボルトｅにより閉じて手摺保持ブラケットａを締付ける事により手摺パイプａが抱持締結される。しかしながら、この手摺取付装置は、手摺保持ブラケットａをいくら強く締付けて抱持させても、手摺パイプａと手摺保持ブラケットｂとの接触面が完全に密着せず空隙が生じる。したがって、手摺パイプａと手摺保持ブラケットｂ接触面の摩擦力以上の力が加わった場合や抱持する為の締付けが緩い場合、手摺パイプａは回転したり、軸方向へずれが起き、手摺の利用者が手摺パイプａをつかんだ際に体勢を崩す事態が考えられる。
【０００３】
【発明が解決しようとする課題】
本発明は前記した欠点を解消する為に開発され、即ち、手摺保持ブラケットが手摺パイプを締付ける力以上の力が加えられた場合や抱持する為の締付けが緩い場合でも、手摺パイプの回転や軸方向のずれを確実に防止する手摺取付装置を提供する事にある。
【０００４】
【課題を解決するための手段】
前記課題を解決する為に、本発明による手摺取付装置は、環状の手摺保持ブラケット内面に突起を設けるとともに手摺パイプへ手摺保持ブラケットの突起と対応する位置に嵌合穴を開設し、手摺パイプを手摺保持ブラケットで締付けて抱持させる事により、手摺保持ブラケット内面の突起が手摺パイプの嵌合穴に嵌合して両者を固定する様にした事を特徴とする。
【０００５】
【発明の実施の形態】
本発明の実施の形態について添付図面を参照して説明する。
図１において符合１は手摺パイプであり、２は手摺パイプ１を挿通抱持する手摺保持ブラケット、３は壁等の設置面Ｗに対して手摺保持ブラケット２を固定する固定ブラケットを示す。
【０００６】
図２から図３で示す様に、手摺パイプ１は軸方向の任意の箇所に嵌合穴４、４′を有し、嵌合穴４、４′は対向状に設けられている。
【０００７】
手摺保持ブラケット２は環状で手摺パイプ１の外径より若干大きな内径の抱持部５と、手摺保持ブラケット２と固定ブラケット３との固定を行う取付部６、６′から成る。前記抱持部５は、内面に対向状に設けられた突起７、７′と、僅かな隙間を持つ開放部８から形成される。また、前記取付部６、６′には、手摺保持ブラケット２と固定ブラケット３との固定を行う固定ボルト９を挿通し、取付部６に固定ボルト９の頭部が係る形状の貫通穴１０が設けられている。
【０００８】
固定ブラケット３には、手摺保持ブラケット２の貫通穴１０を挿通した固定ボルト９を螺合して受入れる、雌ネジ部１１が設けられ、手摺パイプ１と手摺保持ブラケット２を壁等の設置面Ｗに固定する。
【０００９】
各部材の取付手順は、手摺パイプ１を手摺保持ブラケット２に挿通し、手摺保持ブラケット２を手摺パイプ１の嵌合穴４、４′の位置まで移動させる。取付部６の貫通穴１０に固定ボルト９を挿通し、固定ブラケット３の雌ネジ部１１と螺合させる。固定ボルト９を締付けていくと、開放部８の隙間が狭まり、手摺パイプ１の外周面を抱持部５が締付けて手摺パイプ１が手摺保持ブラケット２に固定される。この時、抱持部５の内面に対向状に設けられた突起７、７′が手摺パイプ１の嵌合穴４、４′と嵌合する。
【００１０】
次に本発明を手摺パイプの継ぎ手部分に適用した実施例を説明する。
図４において符合１、１′は手摺パイプであり、２は手摺パイプ１、１′を挿通抱持する手摺保持ブラケット、３は壁等の設置面Ｗに対して手摺保持ブラケット２を固定する固定ブラケット、１２は連結パイプを示す。
【００１１】
図５から図６で示す様に、連結パイプ１２は手摺パイプ１、１′の内径より若干小さな外径であり、手摺パイプ１、１′の連結部における突き合せ位置を跨いで挿入されている。手摺パイプ１、１′と連結パイプ１２はそれぞれタッピンネジ１３により締結されている。手摺パイプ１′は片面端部に切り欠き１４、１４′を有し、対向状に設けている。
【００１２】
手摺保持ブラケット２は環状で手摺パイプ１、１′の外径より若干大きな内径の抱持部５と、手摺保持ブラケット２と固定ブラケット３との固定を行う取付部６、６′から成る。前記抱持部５は内面に対向状に設けられた突起７、７′と、僅かな隙間を持つ開放部８から形成される。また、前記取付部６、６′には、手摺保持ブラケット２と固定ブラケット３との固定を行う固定ボルト９を挿通し、取付部６に固定ボルト９の頭部が係る形状の貫通穴１０が設けられている。
【００１３】
固定ブラケット３には、手摺保持ブラケット２の貫通穴１０を挿通した固定ボルト９を螺合して受入れる、雌ネジ部１１が設けられ、手摺パイプ１、１′と手摺保持ブラケット２を壁等の設置面Ｗに固定する。
【００１４】
各部材の取付手順は、手摺パイプ１、１′を連結パイプ１２にそれぞれタッピンネジ１３により締結し一体にする。図５で示す様に切り欠き１４、１４′と手摺パイプ１の端面が突合わされる事で閉じられて穴状と成る為、切り欠き１４、１４′は図２における手摺パイプ１の嵌合穴４、４′と同等の嵌合穴となる。手摺パイプ１、１′を手摺保持ブラケット２に挿通し、手摺保持ブラケット２を手摺パイプ１′の切り欠き１４、１４′の位置まで移動させる。取付部６の貫通穴１０に固定ボルト９を挿通し、固定ブラケット３の雌ネジ部１１と螺合させる。固定ボルト９を締付けていくと、開放部８の隙間が狭まり、手摺パイプ１、１′の外周面を抱持部５が締付けて手摺パイプ１、１′が手摺保持ブラケット２に固定される。この時、抱持部５の内面に対向状に設けられた突起７、７′が手摺パイプ１′の切り欠き１４、１４′と嵌合する。
【００１５】
次に本発明を手摺パイプの継ぎ手部分に適用した別の実施例を説明する。
図７において符合１、１′は手摺パイプであり、２は手摺パイプ１、１′を挿通抱持する手摺保持ブラケット、３は壁等の設置面Ｗに対して手摺保持ブラケット２を固定する固定ブラケット、１２は連結パイプを示す。
【００１６】
図８で示す様に、連結パイプ１２は手摺パイプ１、１′の内径より若干小さな外径であり、手摺パイプ１、１′の連結部における突き合せ位置を跨いで挿入されている。手摺パイプ１、１′と連結パイプ１２はそれぞれタッピンネジ１３により締結されている。手摺パイプ１、１′は突合わせ位置それぞれの端部に切り欠き１４、１４′、１５、１５′を有し、切り欠き１４と切り欠き１４′、切り欠き１５と切り欠き１５′は対向状に設けている。
【００１７】
手摺保持ブラケット２は環状で手摺パイプ１、１’の外径より若干大きな内径の抱持部５と、手摺保持ブラケット２と固定ブラケット３との固定を行う取付部６、６’から成る。前記抱持部５は内面に対向状に設けられた突起７、７’と、僅かな隙間を持つ開放部８から形成される。また、前記取付部６、６’には、手摺保持ブラケット２と固定ブラケット３との固定を行う固定ボルト９を挿通し、取付部６に固定ボルト９の頭部が係る形状の貫通穴１０が設けられている。
【００１８】
固定ブラケット３には、手摺保持ブラケット２の貫通穴１０を挿通した固定ボルト９を螺合して受入れる、雌ネジ部１１が設けられ、手摺パイプ１、１′と手摺保持ブラケット２を壁等の設置面Ｗに固定する。
【００１９】
各部材の取付手順は、手摺パイプ１、１′を連結パイプ１２にそれぞれタッピンネジ１３により締結し一体にする。図８で示す様に切り欠き１４、１４′と１５、１５′が突合わされる事で閉じられて穴状と成る為、切り欠き１４、１４′、１５、１５′は図２における手摺パイプ１の嵌合穴４、４′と同等の嵌合穴となる。手摺パイプ１、１′を手摺保持ブラケット２に挿通し、手摺保持ブラケット２を手摺パイプ１、１′の切り欠き１４、１４′と切り欠き１５、１５′の位置まで移動させる。取付部６の貫通穴１０に固定ボルト９を挿通し、固定ブラケット３の雌ネジ部１１と螺合させる。固定ボルト９を締付けていくと、開放部８の隙間が狭まり、手摺パイプ１、１′の外周面を抱持部５が締付けて手摺パイプ１、１′が手摺保持ブラケット２に固定される。この時、抱持部５の内面に対向状に設けられた突起７、７′が手摺パイプ１、１′の切り欠き１４、１４′、１５、１５′と嵌合する。
【００２０】
手摺パイプ１の嵌合穴４、４′と手摺保持ブラケット２の環状部内面の突起７、７′の関係は、両者が嵌合する形状で有れば、手摺パイプ１の回転や軸方向のずれを止める事が可能である。突起７、７′と嵌合穴４、４′の形状は図２、図５、図８で示した以外の変形例を次ぎに示す。
【００２１】
図９、図１０は手摺ブラケット内面の突起７、７′の変形例を示したもので、それぞれ突起７、７′の形状を傾斜状、半円状にしたものである。
【００２２】
図１１から図１３は手摺ブラケット内面の突起７、７′と手摺パイプ１の嵌合穴４、４′の変形例を示したものである。それぞれ突起７、７′を円柱状、半球状、円錐状とし、手摺パイプ１の嵌合穴４、４′を円形とした。
【００２３】
図１４、図１５は手摺パイプ１の嵌合穴４、４′の変形例を示したもので、図１４は手摺パイプ１の内面に貫通した穴ではなく凹状とし、図１５は嵌合穴４、４′を複数設ける事で、手摺パイプ１の取付角度を任意に選択できる。
【００２４】
【発明の効果】
本発明は、次のような効果を奏する。
（１）手摺パイプの嵌合穴と手摺保持ブラケット内面の突起を嵌合させて抱持する様にした為、手摺パイプの回転や軸方向のずれを生ずる事が無く、また、多少抱持が緩くてもずれを生じる事が無い。
（２）手摺パイプを連結させる場合は、連結パイプを挿通して両者を固定する様にしている。この為、嵌合穴の開設位置は、手摺パイプ単位部材上のみならず、手摺パイプの突き合せ位置から偏せたり、あるいは跨ぐ様に設けるなど、任意の位置に開設出来る。よって、手摺保持ブラケットで手摺パイプの突き合せ部分を隠し、美観を保つ事が出来る。
【図面の簡単な説明】
【図１】手摺取付装置の配置を示す正面図。
【図２】手摺取付装置の手摺パイプ嵌合穴と手摺保持ブラケットの突起を示す部分欠截斜視図。
【図３】手摺パイプの切り欠きと手摺保持ブラケット突起の嵌合状態を示す側面断面図。
【図４】手摺パイプ連結部における手摺取付装置の配置を示す正面図。
【図５】手摺取付装置の第二実施態様で、手摺パイプ連結部分における、手摺パイプの切り欠きと手摺保持ブラケットの突起を示す部分欠截斜視図。
【図６】手摺パイプ連結部における手摺パイプとブラケットの嵌合状態を示す側面断面図。
【図７】手摺パイプ連結部における手摺取付装置の配置を示す正面図。
【図８】手摺取付装置の第三実施態様で、手摺パイプ連結部分における、手摺パイプの切り欠きと手摺保持ブラケットの突起を示す部分欠截斜視図。
【図９】手摺取付装置の突起と嵌合穴の変形例を示す部分欠截斜視図。
【図１０】手摺取付装置の突起と嵌合穴の変形例を示す部分欠截斜視図。
【図１１】手摺取付装置の突起と嵌合穴の変形例を示す部分欠截斜視図。
【図１２】手摺取付装置の突起と嵌合穴の変形例を示す部分欠截斜視図。
【図１３】手摺取付装置の突起と嵌合穴の変形例を示す部分欠截斜視図。
【図１４】手摺取付装置の嵌合穴の変形例を示す部分欠截斜視図。
【図１５】手摺取付装置の嵌合穴の変形例を示す部分欠截斜視図。
【図１６】従来品の手摺取付装置を示す側面断面図（実開昭４８−９８９２１）
【符号の説明】
ａ手摺パイプ
ｂ手摺保持ブラケット
ｃ固定ブラケット
ｄ、ｄ′ 開放部
ｅボルト
Ｗ壁等の設置面
１、１′ 手摺パイプ
２手摺保持ブラケット
３固定ブラケット
４、４′ 嵌合穴
５抱持部
６、６′ 取付部
７、７′ 突起
８開放部
９固定ボルト
１０貫通穴
１１雌ネジ部
１２連結パイプ
１３タッピンネジ
１４、１４′ 切り欠き
１５、１５′ 切り欠き[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an improvement in a handrail attachment device for attaching a handrail pipe to an installation surface such as a wall in a handrail for buildings.
[0002]
[Prior art]
The applicant of the present invention has applied for a handrail mounting device related to the present invention as Japanese Utility Model Laid-Open No. 48-98921. As shown in FIG. 16, the handrail attachment device described in the corresponding publication includes a handrail pipe a, an annular handrail holding bracket b for inserting and holding the handrail pipe a, and a handrail holding bracket b with respect to an installation surface W such as a wall. It is comprised from the fixing bracket c which fixes. The annular handrail holding bracket b has open portions d and d ′, and the gap between the open portions d and d ′ is closed by a bolt e. The handrail pipe a is held and fastened by closing the gap between the open portions d and d ′ with the bolt e and tightening the handrail holding bracket a. However, in this handrail attachment device, no matter how strongly the handrail holding bracket a is tightened and held, the contact surface between the handrail pipe a and the handrail holding bracket b does not completely adhere to each other, and a gap is generated. Therefore, when a force greater than the frictional force between the handrail pipe a and the handrail holding bracket b contact surface is applied or when tightening is loose, the handrail pipe a rotates or shifts in the axial direction. When the user grabs the handrail pipe a, there is a situation where the posture is lost.
[0003]
[Problems to be solved by the invention]
The present invention has been developed to eliminate the above-mentioned drawbacks, i.e., even when the handrail holding bracket is applied with a force greater than the force for tightening the handrail pipe, or when the handrail is tightened loosely, An object of the present invention is to provide a handrail attachment device that reliably prevents axial displacement.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, a handrail attachment device according to the present invention is provided with a protrusion on the inner surface of an annular handrail holding bracket, and a fitting hole is formed in the handrail pipe at a position corresponding to the protrusion of the handrail holding bracket. By tightening and holding the handrail with the handrail holding bracket, the protrusion on the inner surface of the handrail holding bracket is fitted into the fitting hole of the handrail pipe to fix both.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the accompanying drawings.
In FIG. 1, reference numeral 1 is a handrail pipe, 2 is a handrail holding bracket for inserting and holding the handrail pipe 1, and 3 is a fixed bracket for fixing the handrail holding bracket 2 to an installation surface W such as a wall.
[0006]
As shown in FIGS. 2 to 3, the handrail pipe 1 has fitting holes 4 and 4 ′ at arbitrary positions in the axial direction, and the fitting holes 4 and 4 ′ are provided so as to face each other.
[0007]
The handrail holding bracket 2 includes an annular holding portion 5 having an inner diameter slightly larger than the outer diameter of the handrail pipe 1, and attachment portions 6 and 6 ′ for fixing the handrail holding bracket 2 and the fixing bracket 3. The holding portion 5 is formed of protrusions 7 and 7 'provided on the inner surface in an opposing manner and an opening portion 8 having a slight gap. A fixing bolt 9 for fixing the handrail holding bracket 2 and the fixing bracket 3 is inserted into the mounting portions 6 and 6 ′, and a through hole 10 having a shape corresponding to the head of the fixing bolt 9 is inserted into the mounting portion 6. Is provided.
[0008]
The fixing bracket 3 is provided with a female screw portion 11 for screwing and receiving a fixing bolt 9 inserted through the through-hole 10 of the handrail holding bracket 2, and the handrail pipe 1 and the handrail holding bracket 2 are placed on an installation surface W such as a wall. Secure to.
[0009]
The attachment procedure of each member inserts the handrail pipe 1 into the handrail holding bracket 2, and moves the handrail holding bracket 2 to the positions of the fitting holes 4, 4 'of the handrail pipe 1. The fixing bolt 9 is inserted into the through hole 10 of the mounting portion 6 and screwed into the female screw portion 11 of the fixing bracket 3. As the fixing bolt 9 is tightened, the gap between the opening portions 8 is narrowed, the holding portion 5 is tightened on the outer peripheral surface of the handrail pipe 1, and the handrail pipe 1 is fixed to the handrail holding bracket 2. At this time, the projections 7 and 7 ′ provided on the inner surface of the holding portion 5 so as to face each other are fitted into the fitting holes 4 and 4 ′ of the handrail pipe 1.
[0010]
Next, an embodiment in which the present invention is applied to a joint portion of a handrail pipe will be described.
4, reference numerals 1 and 1 'are handrail pipes, 2 is a handrail holding bracket for inserting and holding the handrail pipes 1 and 1', and 3 is a fixing for fixing the handrail holding bracket 2 to an installation surface W such as a wall. A bracket 12 indicates a connecting pipe.
[0011]
As shown in FIGS. 5 to 6, the connecting pipe 12 has an outer diameter slightly smaller than the inner diameter of the handrail pipe 1, 1 ′, and is inserted across the butting position at the connecting portion of the handrail pipe 1, 1 ′. . The handrail pipes 1, 1 ′ and the connection pipe 12 are fastened by tapping screws 13, respectively. The handrail pipe 1 ′ has notches 14 and 14 ′ at one end portion and is provided in an opposing manner.
[0012]
The handrail holding bracket 2 includes an annular holding unit 5 having an inner diameter slightly larger than the outer diameter of the handrail pipes 1, 1 ′, and attachment parts 6, 6 ′ for fixing the handrail holding bracket 2 and the fixing bracket 3. The holding portion 5 is formed of protrusions 7 and 7 'provided on the inner surface in an opposing manner and an opening portion 8 having a slight gap. A fixing bolt 9 for fixing the handrail holding bracket 2 and the fixing bracket 3 is inserted into the mounting portions 6 and 6 ′, and a through hole 10 having a shape corresponding to the head of the fixing bolt 9 is inserted into the mounting portion 6. Is provided.
[0013]
The fixing bracket 3 is provided with a female screw portion 11 for screwing and receiving a fixing bolt 9 inserted through the through hole 10 of the handrail holding bracket 2, and the handrail pipes 1, 1 ′ and the handrail holding bracket 2 are connected to a wall or the like. Secure to the installation surface W.
[0014]
The attachment procedure of each member is as follows. As shown in FIG. 5, the notches 14 and 14 'and the end face of the handrail pipe 1 are closed to form a hole shape so that the notches 14 and 14' are the fitting holes of the handrail pipe 1 in FIG. This is a fitting hole equivalent to 4, 4 '. The handrail pipes 1 and 1 'are inserted into the handrail holding bracket 2, and the handrail holding bracket 2 is moved to the positions of the notches 14 and 14' of the handrail pipe 1 '. The fixing bolt 9 is inserted into the through hole 10 of the mounting portion 6 and screwed into the female screw portion 11 of the fixing bracket 3. As the fixing bolt 9 is tightened, the gap between the opening portions 8 is narrowed, the holding portion 5 is tightened on the outer peripheral surface of the handrail pipes 1, 1 ′, and the handrail pipes 1, 1 ′ are fixed to the handrail holding bracket 2. At this time, the protrusions 7 and 7 ′ provided on the inner surface of the holding portion 5 so as to face each other are fitted with the notches 14 and 14 ′ of the handrail pipe 1 ′.
[0015]
Next, another embodiment in which the present invention is applied to a joint portion of a handrail pipe will be described.
In FIG. 7, reference numerals 1 and 1 'are handrail pipes, 2 is a handrail holding bracket for inserting and holding the handrail pipes 1 and 1', and 3 is a fixing for fixing the handrail holding bracket 2 to an installation surface W such as a wall. A bracket 12 indicates a connecting pipe.
[0016]
As shown in FIG. 8, the connecting pipe 12 has an outer diameter slightly smaller than the inner diameter of the handrail pipes 1, 1 ′, and is inserted across the butting position at the connecting portion of the handrail pipes 1, 1 ′. The handrail pipes 1, 1 ′ and the connection pipe 12 are fastened by tapping screws 13, respectively. The handrail pipes 1, 1 'have notches 14, 14', 15, 15 'at the ends of the abutting positions. The notches 14 and 14', and the notches 15 and 15 'are opposed to each other. Provided.
[0017]
The handrail holding bracket 2 is formed of a ring-shaped holding portion 5 having an inner diameter slightly larger than the outer diameter of the handrail pipes 1 and 1 ′, and attachment portions 6 and 6 ′ for fixing the handrail holding bracket 2 and the fixing bracket 3. The holding portion 5 is formed of protrusions 7 and 7 ′ provided on the inner surface so as to face each other and an opening portion 8 having a slight gap. Further, a fixing bolt 9 for fixing the handrail holding bracket 2 and the fixing bracket 3 is inserted into the mounting portions 6, 6 ′, and a through hole 10 having a shape related to the head of the fixing bolt 9 is inserted into the mounting portion 6. Is provided.
[0018]
The fixing bracket 3 is provided with a female screw portion 11 for screwing and receiving a fixing bolt 9 inserted through the through hole 10 of the handrail holding bracket 2, and the handrail pipes 1, 1 ′ and the handrail holding bracket 2 are connected to a wall or the like. Secure to the installation surface W.
[0019]
The attachment procedure of each member is as follows. As shown in FIG. 8, the notches 14, 14 ', 15, 15' are closed by being abutted to form a hole, so that the notches 14, 14 ', 15, 15' are the handrail pipe 1 in FIG. This is a fitting hole equivalent to the fitting holes 4, 4 ′. The handrail pipes 1 and 1 'are inserted into the handrail holding bracket 2, and the handrail holding bracket 2 is moved to the positions of the notches 14 and 14' and the notches 15 and 15 'of the handrail pipes 1, 1'. The fixing bolt 9 is inserted into the through hole 10 of the mounting portion 6 and screwed into the female screw portion 11 of the fixing bracket 3. As the fixing bolt 9 is tightened, the gap between the opening portions 8 is narrowed, the holding portion 5 is tightened on the outer peripheral surface of the handrail pipes 1, 1 ′, and the handrail pipes 1, 1 ′ are fixed to the handrail holding bracket 2. At this time, the protrusions 7 and 7 ′ provided on the inner surface of the holding portion 5 so as to face each other are fitted with the notches 14, 14 ′, 15 and 15 ′ of the handrail pipes 1 and 1 ′.
[0020]
The relationship between the fitting holes 4, 4 ′ of the handrail pipe 1 and the protrusions 7, 7 ′ on the inner surface of the annular portion of the handrail holding bracket 2 is such that the handrail pipe 1 rotates and axially as long as the two fit together. It is possible to stop the deviation. The shapes of the protrusions 7 and 7 'and the fitting holes 4 and 4' will be described below as modifications other than those shown in FIGS.
[0021]
9 and 10 show a modification of the projections 7 and 7 'on the inner surface of the handrail bracket. The projections 7 and 7' are inclined and semicircular, respectively.
[0022]
FIGS. 11 to 13 show modifications of the protrusions 7 and 7 ′ on the inner surface of the handrail bracket and the fitting holes 4 and 4 ′ of the handrail pipe 1. The protrusions 7 and 7 'are columnar, hemispherical, and conical, and the fitting holes 4 and 4' of the handrail pipe 1 are circular.
[0023]
14 and 15 show modified examples of the fitting holes 4 and 4 'of the handrail pipe 1. FIG. 14 shows a concave shape instead of a hole penetrating the inner surface of the handrail pipe 1, and FIG. By providing a plurality of 4 ', the attachment angle of the handrail pipe 1 can be arbitrarily selected.
[0024]
【The invention's effect】
The present invention has the following effects.
(1) Since the fitting hole on the handrail pipe and the protrusion on the inner surface of the handrail holding bracket are fitted and held, the handrail pipe does not rotate and does not shift in the axial direction. Even if it is loose, there will be no slippage.
(2) When handrail pipes are connected, both are fixed by inserting the connection pipe. For this reason, the opening position of the fitting hole can be opened not only on the handrail pipe unit member but also at an arbitrary position such as being offset from the butting position of the handrail pipe or provided so as to straddle. Therefore, the butt portion of the handrail pipe can be hidden by the handrail holding bracket, and the aesthetic appearance can be maintained.
[Brief description of the drawings]
FIG. 1 is a front view showing an arrangement of a handrail attachment device.
FIG. 2 is a partial cutaway perspective view showing a handrail pipe fitting hole and a handrail holding bracket protrusion of the handrail attachment device.
FIG. 3 is a side cross-sectional view showing a fitting state between a notch of a handrail pipe and a handrail holding bracket protrusion.
FIG. 4 is a front view showing an arrangement of a handrail attachment device in a handrail pipe connecting portion.
FIG. 5 is a partial cutaway perspective view showing notches of a handrail pipe and protrusions of a handrail holding bracket in a handrail pipe connecting portion in the second embodiment of the handrail attachment device.
FIG. 6 is a side sectional view showing a fitting state of a handrail pipe and a bracket in a handrail pipe connecting portion.
FIG. 7 is a front view showing the arrangement of the handrail attachment device at the handrail pipe connecting portion.
FIG. 8 is a partial cutaway perspective view showing notches of a handrail pipe and protrusions of a handrail holding bracket in a handrail pipe connecting portion in the third embodiment of the handrail attachment device.
FIG. 9 is a partially cutaway perspective view showing a modification of the protrusion and the fitting hole of the handrail attachment device.
FIG. 10 is a partially cutaway perspective view showing a modification of the protrusion and the fitting hole of the handrail attachment device.
FIG. 11 is a partial cutaway perspective view showing a modification of the protrusion and the fitting hole of the handrail attachment device.
FIG. 12 is a partially cut away perspective view showing a modification of the protrusion and the fitting hole of the handrail attachment device.
FIG. 13 is a partially cutaway perspective view showing a modification of the protrusion and the fitting hole of the handrail attachment device.
FIG. 14 is a partial cutaway perspective view showing a modified example of the fitting hole of the handrail attachment device.
FIG. 15 is a partially cutaway perspective view showing a modification of the fitting hole of the handrail attachment device.
FIG. 16 is a side sectional view showing a conventional handrail attachment device (Japanese Utility Model Laid-Open No. 48-99821).
[Explanation of symbols]
a handrail pipe b handrail holding bracket c fixing bracket d, d 'opening e bolt W installation surface 1 such as a wall 1' handrail pipe 2 handrail holding bracket 3 fixing bracket 4, 4 'fitting hole 5 holding portion 6, 6 'Mounting portion 7, 7' Protrusion 8 Opening portion 9 Fixing bolt 10 Through hole 11 Female thread portion 12 Connecting pipe 13 Tapping screw 14, 14 'Notch 15, 15' Notch

Claims

A handrail holding bracket comprising: a handrail pipe, an annular handrail holding bracket for inserting and holding the handrail pipe at an appropriate interval, and a fixed bracket for fixing the handrail holding bracket to an installation surface such as a wall. Consists of a holding part with an inner diameter larger than the outer diameter of the handrail pipe, and an attachment part for fixing the handrail holding bracket and the fixing bracket. The holding part has a slight gap between the protrusion provided on the inner surface and the holding part. and a releasing unit having, mounting portion has a through hole for inserting a fixing bolt screwed into the fixing bracket, opened fitting hole at a position corresponding to the protrusion in the handrail pipe, the Handrail mounting characterized in that by tightening a fixing bolt inserted through the mounting portion, the clearance of the opening portion is narrowed and the protrusion of the holding portion and the fitting hole of the handrail pipe are fitted and fixed. apparatus.

The fitting hole of the handrail pipe is opened across the end of the adjacent handrail pipe unit member when the handrail pipe unit member is opened at the abutting position between the handrail pipe unit members. The handrail attachment device according to claim 1, wherein the rails are fixed to each other.

The fitting hole of the handrail pipe is opened so as to include at least one side of the end portion of the adjacent handrail pipe unit member when it is opened at the abutting position between the handrail pipe unit members. The handrail attachment device according to claim 1, wherein the handrail pipes are fixed to each other.