JPH024614Y2 - - Google Patents

Description

【考案の詳細な説明】 産業上の利用分野 本願は、劇場或いは体育館などにおいて、観覧
席を仮設したい場合に観覧席を伸長して観覧席を
階段状に構成し、不使用時には観覧席を収縮して
室内の一隅に格納することができる伸縮移動観覧
席における手摺装置に関する。[Detailed description of the invention] Industrial application field The present invention is a method for extending the seats in a theater or gymnasium, etc., when it is desired to temporarily construct the seats, configuring the seats in a stair-like shape, and retracting the seats when not in use. The present invention relates to a handrail device for an extendable and retractable bleacher seat that can be stored in a corner of a room.

従来技術と問題点 従来劇場或いは体育館などにおいて、観覧席を
仮設したい場合に観覧席を伸張して観覧席を階段
状に構成し、不使用時には観覧席を収縮して室内
の一隅に格納することができる伸縮移動観覧席に
おける手摺装置は例えば実開昭58−166745号公報
において公知である。Conventional technology and problems Conventionally, in theaters, gymnasiums, etc., when it is desired to temporarily install bleachers, the bleachers are extended to form a staircase-like structure, and when not in use, the bleachers are retracted and stored in a corner of the room. A handrail device for an extendable and retractable bleacher seat is known, for example, from Japanese Utility Model Application Publication No. 166745/1983.

ところが従来の構成によれば、各段の移動床台
の前後端位置に、前傾状態にかつ後部が外方に偏
位するように夫々立設した前後支柱の上端間に、
前部がＬ字状に屈曲する手摺乃至直線状に延びる
手摺を取付けて成るので、前者においては、Ｌ字
状屈曲部の存在により歩行中に物などを引掛ける
惧れがあるばかりでなく、大人の平均的身長に合
わせて設定された手摺の高さ位置が、子供の身長
に相当する場合には子供の顔面乃至頚部がＬ字状
屈曲部に引掛かる危険性を有し、また後者におい
ては、上記したような危険を有しない反面、観覧
席を収縮した際、前段位置の手摺が後段位置の前
支柱に接しないように後支柱を前支柱に対し外方
に大きく偏位するか或いは前段の手摺位置を後段
のそれを順次外方に偏位しなければならず、その
ため後支柱が移動床台の側端から大きく離れたり
或いは最前段位置の手摺位置と最後段位置との手
摺位置が大きく外方に相違して収縮時のスペース
を多く要したり或いは伸長時における手摺位置が
不揃いとなつて、体裁を著しく損うなどの欠陥を
有する。 However, according to the conventional structure, between the upper ends of the front and rear columns, which are erected at the front and rear end positions of the movable platform of each stage, respectively, in a forward tilted state and with the rear part deviated outward,
Since the front part is equipped with a handrail that is bent in an L-shape or a handrail that extends in a straight line, in the former case, there is not only a risk that objects may be caught while walking due to the presence of the L-shaped bent part. If the height of the handrail, which is set according to the average height of an adult, corresponds to the height of a child, there is a risk that the child's face or neck may get caught in the L-shaped bent part. Although this does not pose the above-mentioned dangers, when the bleachers are retracted, the rear column is largely deviated outward from the front column so that the handrail at the front position does not come into contact with the front column at the rear position, or The handrail position in the front stage must be shifted outward in sequence from that in the rear stage, and as a result, the rear column may be far away from the side edge of the movable platform, or the handrail position between the front stage position and the last stage position may be different. They have defects such as a large difference in outward direction, requiring a large amount of space when retracted, or the position of the handrails being uneven when extended, resulting in a significant loss of appearance.

考案の目的及び実施例 そこで本願は上記した従来のものの欠陥を改善
したもので、その特徴とするところは、斜め前方
に傾斜する支柱と、その上端から前方に水平状に
延びるほゞロ字状に形成された手摺部とから成る
手摺枠を、伸縮移動観覧席の収縮状態でその各移
動床台の後端部位置に、夫々後段の手摺枠におけ
る手摺部の下辺より下位に、前段の手摺枠におけ
る手摺部の上辺が位置するように取付けて成るも
のである。OBJECTIVES AND EMBODIMENTS OF THE INVENTION Therefore, the present invention has been developed to improve the defects of the above-mentioned conventional devices, and its features include a column that slopes diagonally forward, and a substantially square-shaped column that extends horizontally forward from its upper end. When the telescopic movable bleachers are in the contracted state, a handrail frame consisting of a handrail portion formed in The handrail is attached so that the upper side of the handrail is located in the frame.

即ち図において、１は斜め前方に傾斜する支
柱、２は支柱１の上端から前方に水平状に延びる
ほゞロ字状に形成された手摺部で、好ましくは前
記支柱１と手摺部２とが、一本の金属パイプによ
り一体に屈曲成型され、以上によつて手摺枠３が
構成される。４は前記支柱１と平行する側杆５
と、前記手摺部２と平行する下杆６とを一本の金
属パイプより屈曲成型して成る補助枠で、側杆５
の上端と下杆６の端部とを夫々稍内方に屈曲し
て、前記手摺部２の下片２ｂの先端部と、支柱１
の下端部とに夫々固着されている。７は両端を内
方に稍屈曲した桟で前記手摺枠３及び補助枠７よ
りも細いパイプ乃至鋼棒から成り、その屈曲両端
を前記手摺部２と平行して前記側杆５と支柱１と
に複数本取付けて縦配列している。このように構
成された手摺枠３の支柱１の下端が伸縮移動観覧
席１０を構成する各移動床台１１の側面後部位置
に取付具８を介して固着される。９は前後で隣接
する手摺部２同志を連結する連結部で、前段の手
摺部２の上片２ａの後端部に突設した係合軸９ａ
を、後段の手摺部２の下片２ｂの下側面に沿つて
形成した摺動溝９ｂに摺動可能に係合して成り、
摺動溝９ｂの前方部は係合軸９ａとの間にガタが
生じないように狭小に形成されている。 That is, in the figure, reference numeral 1 denotes a support column that slopes diagonally forward, and reference numeral 2 indicates a handrail portion formed in a substantially square shape extending horizontally forward from the upper end of the support support 1. Preferably, the support support 1 and the handrail portion 2 are connected to each other. , are integrally bent and molded from a single metal pipe, and the handrail frame 3 is constructed by the above. 4 is a side rod 5 parallel to the support 1;
and a lower rod 6 parallel to the handrail portion 2 are formed by bending and molding a single metal pipe.
The upper end and the end of the lower rod 6 are bent slightly inward, respectively, and the tip of the lower piece 2b of the handrail portion 2 and the end of the support 1
are fixed to the lower ends of each. Reference numeral 7 denotes a crosspiece whose both ends are slightly bent inward, and is made of a pipe or steel rod that is thinner than the handrail frame 3 and the auxiliary frame 7, and its bent ends are parallel to the handrail portion 2 and connected to the side beam 5 and the support column 1. Multiple pieces are installed and arranged vertically. The lower ends of the pillars 1 of the handrail frame 3 configured in this way are fixed to the rear sides of each movable platform 11 constituting the telescopic movable bleachers 10 via fixtures 8. Reference numeral 9 denotes a connecting portion that connects the handrail portions 2 that are adjacent to each other in the front and back, and an engagement shaft 9a that is protruded from the rear end of the upper piece 2a of the handrail portion 2 in the previous stage.
is slidably engaged with a sliding groove 9b formed along the lower surface of the lower piece 2b of the rear handrail portion 2,
The front portion of the sliding groove 9b is formed narrowly so as to prevent play from occurring between the sliding groove 9b and the engaging shaft 9a.

なお上記において、桟７の間隔は、伸縮移動観
覧席１０の収縮状態において、各移動床台１１に
取付けた手摺枠３の桟７同志が互いに異なる高さ
位置となるように設定される。なお上記移動床台
１１は、下面に転輪１２を有した左右水平脚１３
の後端部に夫々立設した脚支柱１４の上部間に前
方に張り出すように床盤１５を横架して成り、床
盤１５には折畳及び起伏可能な椅子１６が配設し
てある。また上記において桟７の屈曲両端を手摺
部２の下辺２ｂと補助枠４の下杆６とに夫々取付
けて横配列してもよいことは勿論である。 In the above, the intervals between the bars 7 are set so that the bars 7 of the handrail frame 3 attached to each movable platform 11 are at different height positions when the telescopic movable bleachers 10 are in the contracted state. The movable platform 11 has left and right horizontal legs 13 having rolling wheels 12 on the lower surface.
A floor board 15 is horizontally suspended between the upper parts of leg supports 14 erected at the rear end so as to project forward, and a chair 16 that can be folded and raised is disposed on the floor board 15. be. Further, in the above, it is of course possible to attach both bent ends of the crosspiece 7 to the lower side 2b of the handrail portion 2 and the lower rod 6 of the auxiliary frame 4, respectively, and arrange them horizontally.

しかして伸縮移動観覧席の伸張状態において
は、第４図で示すように各手摺部２が各移動床台
１１の床盤１５と平行して階段状に配列され、ま
た収縮状態においては、第５図で示すように手摺
部２が同一高さ列に位置すると共に、手摺枠同志
及び補助枠同志が夫々異つた垂直面を形成する。
そしてこの伸縮移動時に係合軸９ａが摺動溝９ｂ
を摺動する。 In the extended state of the telescoping movable bleachers, the handrails 2 are arranged in a step-like manner parallel to the floor plate 15 of each movable platform 11, as shown in FIG. As shown in FIG. 5, the handrail portions 2 are located at the same height, and the handrail frames and auxiliary frames form different vertical planes.
During this telescopic movement, the engagement shaft 9a slides into the sliding groove 9b.
slide.

なお実施例は、最後段位置の補助枠４の支柱１
を垂直状に形成し、かつ最前段位置の補助枠４に
おける側杆５を垂直状に形成した場合を示してい
る。 In addition, in the embodiment, the pillar 1 of the auxiliary frame 4 at the last stage position is
This figure shows a case where the side rods 5 of the auxiliary frame 4 at the forefront position are formed vertically.

考案の効果 本願は叙上のように構成されるものであるか
ら、従来のように角張つた部分が全くなく、安全
な手摺装置が提供できると共に、伸縮移動観覧席
の収縮状態においては場所をとらず、かつ構造も
簡単であり、特に支柱と手摺部を一本の金属パイ
プから作成するときは量産性に適し安価に得られ
るなどの利点を有する。Effects of the invention Since the present application is constructed as described above, it is possible to provide a safe handrail device without any angular parts unlike the conventional one, and it also saves space when the telescopic movable bleachers are in the contracted state. It also has a simple structure, and has the advantage of being suitable for mass production and being inexpensive, especially when the support and handrail are made from a single metal pipe.

【図面の簡単な説明】[Brief explanation of the drawing]

図面は本願の実施例を示すもので、第１図は手
摺枠の平面図、第２図は同上面図、第３図は第１
図のＡ−Ａ線断面図、第４図は手動枠を備えた伸
縮移動観覧席の伸長状態の側面図、第５図は同収
縮状態の側面図、第６図は連結部を示す一部裁断
した部分拡大側面図である。 図中１は支柱、２は手摺部、３は手摺枠、４は
補助枠、５は側杆、６は下杆、７は桟、１０は伸
縮移動観覧席、１１は移動床台である。 The drawings show an embodiment of the present application, and FIG. 1 is a plan view of the handrail frame, FIG. 2 is a top view of the same, and FIG. 3 is a top view of the handrail frame.
4 is a side view of the telescopic movable bleachers equipped with a manual frame in the extended state, FIG. 5 is a side view of the same in the contracted state, and FIG. 6 is a part showing the connecting part. It is a cut partial enlarged side view. In the figure, 1 is a column, 2 is a handrail portion, 3 is a handrail frame, 4 is an auxiliary frame, 5 is a side beam, 6 is a lower beam, 7 is a crosspiece, 10 is an extendable movable viewing seat, and 11 is a movable platform.

Claims (1)

【実用新案登録請求の範囲】 (1) 斜め前方に傾斜する支柱と、その上端から前
方に水平状に延びるほゞロ字状に形成された手
摺部とから成る手摺枠を、伸縮移動観覧席の収
縮状態でその各移動床台の後端部位置に、夫々
後段の手摺枠における手摺部の下辺より下位
に、前段の手摺枠における手摺部の上辺が位置
するように取付けて成る伸縮移動観覧席におけ
る手摺装置。 (2) 支柱と手摺部とを、一本の金属パイプを屈曲
成型して一体に構成した実用新案登録請求の範
囲第１項記載の伸縮移動観覧席における手摺装
置。[Claims for Utility Model Registration] (1) A handrail frame consisting of a column that slopes diagonally forward and a handrail portion formed in a substantially square shape that extends horizontally forward from the upper end of the column is used as a telescopic movable spectator seat. A telescopic movable viewing platform that is attached to the rear end of each movable platform in a contracted state so that the upper side of the handrail of the previous handrail frame is located below the lower side of the handrail of the latter handrail frame. Handrail devices at seats. (2) A handrail device for an extendable and retractable bleacher seat as set forth in claim 1 of the utility model registration claim, in which the support and the handrail are integrally formed by bending and molding a single metal pipe.