JP3995355B2

JP3995355B2 - Handrail coupling

Info

Publication number: JP3995355B2
Application number: JP36401798A
Authority: JP
Inventors: 繁明山冨; 謙一八尋; 亜紀彦福田
Original assignee: Eidai Co Ltd
Current assignee: Eidai Co Ltd
Priority date: 1998-12-22
Filing date: 1998-12-22
Publication date: 2007-10-24
Anticipated expiration: 2018-12-22
Also published as: JP2000186405A

Description

【０００１】
【発明の属する技術分野】
本発明は手摺連結具に関する。
【０００２】
【従来の技術】
従来、この種の手摺連結具として以下の如きものは知られている。
手摺が連結される第１部材と、手摺が連結される第２部材とを有し、第１部材と第２部材とが連結ピンで上下に折り曲げ自在に連結されたものは知られている（特開平１０−６１１３９号公報参照）。
従来の手摺連結具は、水平な手摺と施工現場ごとに相違する階段の傾斜に対応して傾斜した手摺との連結に対応することが出来るという利点を有している。
【０００３】
【従来技術の欠点】
前記従来の手摺連結具には以下の如き欠点があった。
第１部材と第２部材とが連結ピンで折り曲げ自在に連結されたものであったため、連結ピンの軸心に直交する方向（上下方向）にしか折り曲げ出来なかったので、連結される手摺が施工誤差等によって平面から見て一直線に並ばない場合に手摺の連結が困難又は出来ないという欠点があった。
【０００４】
【前記欠点を解消するための手段】
本発明は前記欠点を解消するために以下の如き手段を採用した。
本発明は、手摺が連結される第１部材と、手摺が連結される第２部材とを有し、第１部材又は第２部材の一方が球面の一部からなる凸部材を有し、同他方が凸部材に整合嵌合する凹部材を有し、前記凸部材と凹部材とが中空状となされ、中空状の凸部材及び中空状の凹部材に貫通孔が形成され、前記凸部材の内面の、貫通孔の縁部に立上り部が設けられ、この立上り部の先端が凸部材の球面からなる外表面に並行な湾曲縁となされ、前記凸部材の貫通孔及び凹部材の貫通孔に連結ピンが任意の方向に移動自在に嵌められ、この連結ピンの一端の抜け止め部材が立上り部の湾曲縁に当接させられ、同他方端の抜け止め部材が凹部材の球状の内面に当接するようになされているものである。
【０００５】
【発明の効果】
本発明は前記した如き構成によって以下の如き効果を奏する。
▲１▼連結される手摺が施工誤差等によって平面から見て一直線に並ばない場合にも、手摺を連結することが出来る。
▲２▼立上り部の湾曲縁、即ち、抜け止め部材が、球面の一部からなる凸部材の球面の中心に近付くので、連結ピンに対して凸部材を動かして究極的に凸部材と凹部材とのなす角度を変更する際、抜け止め部材が中空状の凸部材の球状の内面に直接に当接する場合に比較して、抜け止め部材が立上り部の湾曲縁に摺接して移動する距離を短くして、労力を少なくして凸部材と凹部材とのなす角度を変更することが出来る。
【０００６】
【発明の実施の形態】
以下に、発明の実施の形態を説明する。
なお、この説明において、上とは図１上側を、下とは同図下側をいい、左とは図１紙面表側を、右とは同裏側をいう。
【０００７】
手摺連結具１は、任意断面、例えば断面円形の手摺２が連結される第１部材３と、手摺２が連結される第２部材４とを有している。
第１部材３又は第２部材４の一方、具体的には第１部材３が、球面の一部からなる凸部材６を有し、同他方、具体的には第２部材４が、凸部材６に整合嵌合する凹面を有する凹部材７を有している。前記凸部材６と凹部材７とが以下に詳述するような手段によって任意の方向に折り曲げ自在に嵌合・連結されている。
【０００８】
前記凸部材６と凹部材７とは中空状となされ、中空状の凸部材６に上下方向に長い貫通孔９が形成され、中空状の凹部材７に上下方向に長い貫通孔１３が形成され、前記中空状の凸部材６の内面の、貫通孔９の縁部に立上り部１９が設けられ、この立上り部１９の先端が凸部材６の球面からなる外表面に並行な湾曲縁となされている。
前記凸部材６の貫通孔９及び凹部材７の貫通孔１３に直径ｄの連結ピン１１が任意の方向に移動自在に嵌められ、この連結ピン１１の一端の抜け止め部材１０が立上り部１９の湾曲縁に当接させられ、同他方端の抜け止め部材１４が凹部材７の球状の内面に当接するようになされている。貫通孔９、１３に連結ピン１１が任意の方向に移動自在に嵌められるとは、貫通孔９、１３の上下長さ及び左右長さが、連結ピン１１の直径ｄより長くなされていることを意味する。
このような構成により、立上り部１９の湾曲縁、即ち、抜け止め部材１０が、球面の一部からなる凸部材６の球面の中心に近付くので、連結ピン１１に対して凸部材６を動かして究極的に凸部材６と凹部材７とのなす角度を変更する際、抜け止め部材１０が中空状の凸部材６の内面に直接に当接する場合に比較して、抜け止め部材１０が立上り部１９の湾曲縁に摺接して移動する距離を短くして、労力を少なくして凸部材６と凹部材７とのなす角度を変更することが出来る。
なお、連結ピン１１が貫通孔９の上下方向全範囲において移動し得るように、立上り部１９の湾曲縁の上下部は、抜け止め部材１０を逃げるような形状となされている。
【０００９】
上記の如き構成により、凸部材６と凹部材７とが、換言すれば、第１部材３と第２部材４とが任意の方向に折り曲げ自在に連結されている。なお、第１部材３と第２部材４とは、上下方向には相互に９０度（ほぼ９０度も含む。以下同様。）をなす状態にまで折り曲げ可能であるが（即ち、第１部材３に嵌められた手摺２の長手方向中心線と第２部材４に嵌められた手摺２の長手方向中心線とが相互に９０度をなす状態にまで折り曲げ可能であるが）、左右方向には直線状態から左側及び右側に１０度前後の角度範囲で折り曲げ出来る程度である。しかし、前記折れ曲がり角度は全く任意である。
ところで、連結ピン１１が凸部材６及び凹部材７のいずれに対しても上下方向に所定長さだけ上下動自在となされているので、即ち、連結ピン１１を基準に考えた場合、凸部材６と凹部材７とが連結ピン１１に対して上下動することが出来るので、連結ピン１１が凸部材６又は凹部材７のいずれか一方にのみ上下方向に所定長さだけ上下動自在となされている場合に比較して、凸部材６と凹部材７との嵌合の割合を少なくして、第１部材３と第２部材４とが相互に９０度をなすように折り曲げることが出来る。即ち、図１において、連結ピン１１が例えば凸部材６に固定されている場合を想定した場合、連結ピン１１は凹部材７の貫通孔１３に沿って上下に移動出来るだけであるが、連結ピン１１が凸部材６に形成され貫通孔９に沿っても上下に移動出来る分だけ、凸部材６と凹部材７との嵌合の割合を少なくして、第１部材３と第２部材４とが相互に９０度をなすように折り曲げることが出来る。
【００１０】
前記第１部材３及び第２部材４に手摺２の端部が嵌まる嵌合凹所１６が形成され、この嵌合凹所１６の奥部に手摺４の端面が当たる任意形状の突起からなるストッパー１７が設けられている。
手摺４は、ストッパー１７に当たる位置まで嵌合凹所１６に嵌め入れられた後、第１部材３及び第２部材４に形成されたねじ挿通孔（図示略）を通じてねじ（図示略）を手摺２にねじ嵌めることによって第１部材３及び第２部材４に固定される。なお、手摺２を接着剤等によって第１部材３及び第２部材４に固定するようにしてもよいことは云うまでもない。
【００１１】
【変形例等】
以下に変形例等について説明を加える。
（１）連結ピン１１と抜け止め部材１０とを別の部材とし、連結ピン１１と抜け止め部材１０とを組み立て・連結するようにしてもよい。
（２）凸部材６と凹部材７との間に、両者の摺動を良くするための環状の滑り部材を、連結ピン１１に嵌めた状態で介在させることもある。なお、滑り部材は、貫通孔９、１３に嵌まり込まないような大きさとなされることは云うまでもない。
（３）手摺連結具１を、階段の折れ曲がり角部における手摺の連結具として使用出来ることは云うまでもない。
（４）手摺連結具１を、階段以外の手摺の連結具として使用出来ることは云うまでもない。
（５）手摺連結具１の素材は、合成樹脂、金属等任意である。
【図面の簡単な説明】
【図１】本発明の実施の形態を示す縦断面図である。
【図２】図１のＩＩ−ＩＩ線縦断面図である。
【符号の説明】
１手摺連結具
２手摺
３第１部材
４第２部材
６凸部材
７凹部材
９貫通孔
１０抜け止め部材
１１連結ピン
１３貫通孔
１４抜け止め部材
１９立ち上り部
２１第３部材[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a handrail connector.
[0002]
[Prior art]
Conventionally, the following are known as this type of handrail coupler.
It is known that a first member to which a handrail is connected and a second member to which a handrail is connected, and the first member and the second member are connected to each other by a connecting pin so as to be bent up and down ( Japanese Patent Laid-Open No. 10-61139).
The conventional handrail connector has an advantage that it can cope with the connection between a horizontal handrail and an inclined handrail corresponding to the inclination of the staircase that is different for each construction site.
[0003]
[Disadvantages of the prior art]
The conventional handrail connector has the following drawbacks.
Since the first member and the second member were connected by a connecting pin so that they could be bent, they could only be bent in a direction (vertical direction) perpendicular to the axis of the connecting pin. There is a drawback that it is difficult or impossible to connect the handrails when they are not aligned in a straight line when viewed from the plane due to errors or the like.
[0004]
[Means for eliminating the above-mentioned drawbacks]
The present invention employs the following means in order to eliminate the above disadvantages.
The present invention has a first member to which a handrail is connected and a second member to which a handrail is connected, and one of the first member and the second member has a convex member made of a part of a spherical surface. The other has a concave member that fits and fits to the convex member, the convex member and the concave member are hollow, and a through hole is formed in the hollow convex member and the hollow concave member. A rising portion is provided at the edge of the through hole on the inner surface, and the tip of the rising portion is formed as a curved edge parallel to the outer surface made of the spherical surface of the convex member, and the through hole of the convex member and the through hole of the concave member The connecting pin is movably fitted in an arbitrary direction, the retaining member at one end of the connecting pin is brought into contact with the curved edge of the rising portion, and the retaining member at the other end contacts the spherical inner surface of the recess member. It is made to touch.
[0005]
【The invention's effect】
The present invention has the following effects by the configuration as described above.
(1) The handrails can be connected even when the handrails to be connected are not aligned in a straight line when viewed from the plane due to construction errors or the like.
(2) Since the curved edge of the rising portion, that is, the retaining member approaches the center of the spherical surface of the convex member formed of a part of the spherical surface, the convex member and the concave member are ultimately moved by moving the convex member with respect to the connecting pin. When the angle between the retaining member and the spherical inner surface of the hollow convex member is in direct contact, the distance by which the retaining member moves in sliding contact with the curved edge of the rising portion is changed. The angle between the convex member and the concave member can be changed by shortening and reducing the labor.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the invention will be described below.
In this description, upper means the upper side of FIG. 1, lower means the lower side of the figure, left means the front side of FIG. 1 and right means the back side.
[0007]
The handrail connector 1 includes a first member 3 to which a handrail 2 having an arbitrary cross section, for example, a circular cross section, is connected, and a second member 4 to which the handrail 2 is connected.
One of the first member 3 or the second member 4, specifically, the first member 3 has a convex member 6 made of a part of a spherical surface, and the other, specifically, the second member 4 is a convex member. 6 has a concave member 7 having a concave surface to be aligned and fitted. The convex member 6 and the concave member 7 are fitted and connected so as to be bendable in any direction by means described in detail below.
[0008]
The convex member 6 and the concave member 7 are formed in a hollow shape, and a long through hole 9 is formed in the hollow convex member 6 in the vertical direction, and a long through hole 13 is formed in the hollow concave member 7 in the vertical direction. A rising portion 19 is provided at the edge of the through-hole 9 on the inner surface of the hollow convex member 6, and the tip of the rising portion 19 is formed as a curved edge parallel to the outer surface made of the spherical surface of the convex member 6. Yes.
A connecting pin 11 having a diameter d is fitted in the through hole 9 of the convex member 6 and the through hole 13 of the concave member 7 so as to be freely movable in any direction, and the retaining member 10 at one end of the connecting pin 11 is connected to the rising portion 19. The retaining member 14 at the other end is brought into contact with the curved inner edge so as to contact the spherical inner surface of the concave member 7. The fact that the connecting pin 11 is fitted in the through holes 9 and 13 so as to be movable in an arbitrary direction means that the vertical length and the left and right length of the through holes 9 and 13 are longer than the diameter d of the connecting pin 11. means.
With such a configuration, the curved edge of the rising portion 19, that is, the retaining member 10 approaches the center of the spherical surface of the convex member 6 that is a part of the spherical surface. When the angle between the convex member 6 and the concave member 7 is ultimately changed, the retaining member 10 rises compared to the case where the retaining member 10 directly contacts the inner surface of the hollow convex member 6. It is possible to change the angle formed by the convex member 6 and the concave member 7 by shortening the distance moved by sliding contact with the 19 curved edges and reducing labor.
In addition, the upper and lower portions of the curved edge of the rising portion 19 are configured to escape the retaining member 10 so that the connecting pin 11 can move in the entire vertical range of the through hole 9.
[0009]
With the above configuration, the convex member 6 and the concave member 7 are connected in other words so that the first member 3 and the second member 4 can be bent in any direction. Note that the first member 3 and the second member 4 can be folded up to 90 degrees in the vertical direction (including almost 90 degrees, the same applies hereinafter) (that is, the first member 3). The longitudinal center line of the handrail 2 fitted to the second rail 4 and the longitudinal center line of the handrail 2 fitted to the second member 4 can be folded so as to form 90 degrees with each other. It can be bent from the state to the left and right sides within an angle range of about 10 degrees. However, the bending angle is completely arbitrary.
By the way, the connecting pin 11 is movable up and down by a predetermined length in the vertical direction with respect to both the convex member 6 and the concave member 7, that is, when considering the connecting pin 11 as a reference, the convex member 6. And the concave member 7 can move up and down with respect to the connecting pin 11, so that the connecting pin 11 can be moved up and down by a predetermined length only in either the convex member 6 or the concave member 7 in the vertical direction. Compared with the case where it has, the ratio of the fitting of the convex member 6 and the concave member 7 can be reduced, and the first member 3 and the second member 4 can be bent so as to form 90 degrees. That is, in FIG. 1, assuming that the connecting pin 11 is fixed to the convex member 6, for example, the connecting pin 11 can only move up and down along the through hole 13 of the concave member 7. 11 is formed on the convex member 6, and the proportion of the fitting between the convex member 6 and the concave member 7 is reduced by the amount that can move up and down along the through hole 9. Can be bent so as to form 90 degrees with each other.
[0010]
The first member 3 and the second member 4 are formed with a fitting recess 16 into which the end portion of the handrail 2 is fitted, and is formed of a protrusion having an arbitrary shape in which the end surface of the handrail 4 hits the inner portion of the fitting recess 16. A stopper 17 is provided.
The handrail 4 is inserted into the fitting recess 16 to a position where it hits the stopper 17, and then a screw (not shown) is screwed through a screw insertion hole (not shown) formed in the first member 3 and the second member 4. It is fixed to the first member 3 and the second member 4 by screwing into the first member 3 and the second member 4. Needless to say, the handrail 2 may be fixed to the first member 3 and the second member 4 with an adhesive or the like.
[0011]
[Modifications]
A description will be given below of modifications and the like.
(1) The connecting pin 11 and the retaining member 10 may be separate members, and the connecting pin 11 and the retaining member 10 may be assembled and connected.
(2) An annular sliding member for improving the sliding of both may be interposed between the convex member 6 and the concave member 7 in a state of being fitted to the connecting pin 11. Needless to say, the sliding member is sized so as not to be fitted into the through holes 9 and 13.
(3) Needless to say, the handrail connector 1 can be used as a handrail connector at the corner of a staircase.
(4) Needless to say, the handrail connector 1 can be used as a handrail connector other than stairs.
(5) The material of the handrail connector 1 is arbitrary, such as synthetic resin or metal.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
2 is a longitudinal sectional view taken along line II-II in FIG. 1. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Handrail coupling tool 2 Handrail 3 1st member 4 2nd member 6 Convex member 7 Recessed material 9 Through-hole 10 Retaining member 11 Connecting pin 13 Through-hole 14 Retaining member 19 Rising part 21 Third member

Claims

It has a first member to which the handrail is connected and a second member to which the handrail is connected. One of the first member or the second member has a convex member made of a part of a spherical surface, and the other is a convex member. The convex member and the concave member are hollow, a through hole is formed in the hollow convex member and the hollow concave member, and the inner surface of the convex member is penetrated. A rising portion is provided at the edge of the hole, and a tip of the rising portion is formed as a curved edge parallel to the outer surface made of the spherical surface of the convex member. The retaining member at one end of the connecting pin is brought into contact with the curved edge of the rising portion, and the retaining member at the other end is brought into contact with the spherical inner surface of the recess member. There is a handrail connector.