JP6009224B2

JP6009224B2 - Staircase

Info

Publication number: JP6009224B2
Application number: JP2012120398A
Authority: JP
Inventors: 智東野; 悠子奥井; 泰輔大澤
Original assignee: Sankyo Tateyama Inc
Current assignee: Sankyo Tateyama Inc
Priority date: 2012-05-28
Filing date: 2012-05-28
Publication date: 2016-10-19
Anticipated expiration: 2032-05-28
Also published as: JP2013245492A

Description

本発明は、中空の踏板を備える階段に関する。 The present invention relates to a staircase having a hollow tread.

従来より、非特許文献１に記載されているように、アルミニウム合金の押出形材よりなる中空の踏板の左右両端部をアングル状の取付金具で側板に固定したアルミ製の階段があった。
近年、より幅広の階段が求められることがあり、これに対応するためには踏板の厚みを全体的に厚くして踏板の強度を高めることが考えられるが、そうすると踏板の材料費が高くなってコストが増大する。 Conventionally, as described in Non-Patent Document 1, there has been an aluminum staircase in which left and right ends of a hollow tread made of an aluminum alloy extruded shape are fixed to a side plate with angle-shaped mounting brackets.
In recent years, a wider stairs may be required, and in order to cope with this, it is conceivable to increase the overall thickness of the tread to increase the strength of the tread. However, this increases the material cost of the tread. Cost increases.

三協立山アルミ株式会社発行のカタログ「ウォールエクステリアカタログ」（カタログＮｏ．ＳＴＷ０２２４ＡＴＳ．１２．０３−９００）、２０１２年３月、ｐ．７７９Catalog issued by Sankyo Tateyama Aluminum Co., Ltd. “Wall Exterior Catalog” (Catalog No. STW0224A TS. 12.03-900), March 2012, p. 779

本発明は以上に述べた実情に鑑み、コストを抑えながら踏板の強度を高めることのできる階段の提供を目的とする。 The present invention has been made in view of the above-described circumstances, and an object thereof is to provide a staircase that can increase the strength of a tread board while suppressing costs.

上記の課題を達成するために請求項１記載の発明による階段は、中空の踏板と、踏板の両端部を支持する取付金具とを備え、中空の踏板は、アルミニウム合金の押出形材で、前面に垂下片を有し、垂下片は下端部に後方に向けて突出する水平片を有し、一体形成してあり、垂下片により取付金具を隠蔽してあることを特徴とする。 In order to achieve the above object, a staircase according to the first aspect of the present invention includes a hollow tread and mounting brackets that support both ends of the tread, the hollow tread being an aluminum alloy extruded profile, The hanging piece has a horizontal piece protruding rearward at the lower end portion, is integrally formed, and the mounting bracket is concealed by the hanging piece.

請求項１記載の発明による階段は、中空の踏板の前面に垂下片を設けたことで、コストを抑えながら踏板の強度を高めることができる。さらに、垂下片の下端部に後方に向けて突出する水平片を一体に設けたことで、垂下片が補強され、踏板全体の強度がより一層向上する。さらに、垂下片により取付金具が隠蔽されるため、意匠性が良い。また、垂下片により正面から見て踏板が厚くなって見えるため、安心感がある。 In the staircase according to the first aspect of the present invention, the hanging piece is provided on the front surface of the hollow tread so that the strength of the tread can be increased while suppressing the cost. Furthermore, the horizontal piece which protrudes toward back is integrally provided in the lower end part of the hanging piece, whereby the hanging piece is reinforced and the strength of the entire tread is further improved. Furthermore, since the mounting bracket is concealed by the hanging piece, the design is good. In addition, there is a sense of security because the treads appear thicker when viewed from the front due to the hanging pieces.

図３に示す階段の踏板を拡大して示す縦断面図である。It is a longitudinal cross-sectional view which expands and shows the tread of the staircase shown in FIG. 図３に示す階段の踏板の正面図である。It is a front view of the step board of the stairs shown in FIG. 本発明の階段の一実施形態を示す縦断面図である。It is a longitudinal cross-sectional view which shows one Embodiment of the staircase of this invention.

以下、本発明の実施の形態を図面に基づいて説明する。図３は、本発明の階段の一実施形態を示している。この階段は、例えば屋外のデッキやバルコニー等に上り下りするために設置されるものであって、左右の側板４と、側板４間に架設した複数の踏板１と、手摺５と、手摺５を支持する支柱６及び格子材７とを備えており、各部材はアルミで形成されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 3 shows an embodiment of the staircase of the present invention. The staircase is installed, for example, to go up and down on an outdoor deck, a balcony, or the like. The left and right side plates 4, a plurality of step plates 1 installed between the side plates 4, handrails 5, and handrails 5 A supporting column 6 and a lattice material 7 are provided, and each member is formed of aluminum.

踏板１は、図１，２に示すように、アルミニウム合金の押出形材で形成したものであって、上下壁８，９と前後壁１０，１１及び上下壁８，９間に設けたリブ１２，１２とで中空板状の本体部１３が形成され、本体部１３の前側端部下面側より垂下片３が下方に垂下して設けてある。踏板１の本体部１３の高さＨ１は３０ｍｍ、垂下片３を含めた踏板１の前部の高さＨ２は６０ｍｍとなっている。
踏板１の上壁８の前部には、滑り止め材保持溝１４が形成してあり、滑り止め材保持溝１４にゴム質の滑り止め材１５が保持してある。滑り止め材保持溝１４は、滑り止め材１５の裏面に形成した前後の爪１６，１６が係止する係止部１７，１７と、係止部１７，１７間に突出し滑り止め材１５の裏面を支える支え片１８とを有している。
前壁１０と後壁１１は、逆ハの字状に傾斜している。下壁９の後側端部には、後述する取付金具２の端部を突き当てて位置決めする突起１９が設けてある。
垂下片３は、前壁１０と同じように後方に向かって傾斜しており、垂下片３の下端部には後側に向かって突出する水平片２０を有し、水平片２０は滑り止め材１５の下に位置している。 As shown in FIGS. 1 and 2, the tread board 1 is formed of an extruded material of an aluminum alloy, and is provided with upper and lower walls 8 and 9, front and rear walls 10 and 11, and ribs 12 provided between the upper and lower walls 8 and 9. , 12, and a hollow plate-like main body 13 is formed, and a hanging piece 3 is hung downward from the lower surface side of the front end of the main body 13. The height H1 of the main body 13 of the footboard 1 is 30 mm, and the height H2 of the front portion of the footboard 1 including the hanging piece 3 is 60 mm.
An anti-slip material holding groove 14 is formed in the front portion of the upper wall 8 of the tread plate 1, and a rubber-like anti-slip material 15 is held in the anti-slip material holding groove 14. The anti-slip material holding groove 14 protrudes between the locking portions 17 and 17 and the back and front surfaces of the anti-slip material 15 that are engaged by the front and rear claws 16 and 16 formed on the back surface of the anti-slip material 15. And a support piece 18 for supporting the.
The front wall 10 and the rear wall 11 are inclined in an inverted C shape. A projection 19 is provided at the rear end of the lower wall 9 to abut the end of the mounting bracket 2 to be described later.
The hanging piece 3 is inclined rearward in the same manner as the front wall 10, and has a horizontal piece 20 protruding toward the rear side at the lower end portion of the hanging piece 3, and the horizontal piece 20 is an anti-slip material. 15 is located below.

踏板１は、両端部下面側を取付金具２で側板４に固定してある。取付金具２は、ステンレスや鉄の板で横向き片２１と下向き片２２とを有する断面Ｌ字形に形成してあり、横向き片２１を踏板１の下壁９にネジ２３で固定し、下向き片２２を側板４にボルト２４で固定している。下向き片２２の後側のボルト挿通孔２５は前後方向の長孔になっており、これにより側板４の傾斜角度αを変化させても踏板１を水平に設置できるようにしている。取付金具２は、踏板１の前面に設けた垂下片３により、正面から見えないように隠蔽されている。
側板４は、内側面にナット収納溝２６を長手方向に沿って２列設けてあり、各ナット収納溝２６内にナット２７を長手方向に摺動可能に保持しており、このナット２７に前記ボルト２４を螺入することにより、踏板１の設置位置を側板４の長手方向に沿って調節できるようにしている。 The tread plate 1 is fixed to the side plate 4 with attachment brackets 2 on the lower surface sides of both ends. The mounting bracket 2 is made of a stainless steel or iron plate and is formed in an L-shaped cross section having a lateral piece 21 and a downward piece 22. The lateral piece 21 is fixed to the lower wall 9 of the tread plate 1 with screws 23, and the downward piece 22 is attached. Is fixed to the side plate 4 with bolts 24. The bolt insertion hole 25 on the rear side of the downward piece 22 is a long hole in the front-rear direction, so that the tread plate 1 can be installed horizontally even if the inclination angle α of the side plate 4 is changed. The mounting bracket 2 is concealed by a hanging piece 3 provided on the front surface of the tread plate 1 so as not to be seen from the front.
The side plate 4 is provided with two rows of nut storage grooves 26 along the longitudinal direction on the inner side surface, and nuts 27 are slidably held in the nut storage grooves 26 in the longitudinal direction. The installation position of the tread board 1 can be adjusted along the longitudinal direction of the side plate 4 by screwing the bolts 24.

本階段は以上に述べたように構成され、階段を人が上り下りするときには踏板１の前側に特に荷重が加わるが、中空の踏板１の前面に垂下片３を設けたことで、踏板１の本体部１３の厚みを厚くすることなく、踏板１が荷重により撓むのを効果的に防止することができる。したがって、コストを抑えながら側板４，４間の幅の広い階段に対応することができる。
また本階段は、踏板１の垂下片３により取付金具２が隠蔽されているため、意匠性が良い。踏板１の前面に垂下片３を設けたことで、正面から見ると実質的に３０ｍｍの厚みの踏板１が、６０ｍｍの厚みがあるように見えるため、階段を上る人に安心感を与えられる。
さらに本階段は、垂下片３の下端部に後方に向けて突出する水平片２０を設けたことで垂下片３が補強され、しかも垂下片３を後方に傾斜させて水平片２０が滑り止め材１５の下に位置するようにしたことで、踏板１全体の強度がより一層向上している。さらに、踏板１の前後壁１０，１１を逆ハの字状に傾斜させると共に、垂下片３を後方に傾斜させたことで、踏面の広さを広く確保しながら材料費を少なくできる。また、垂下片３が後方に傾斜していることで、つま先が垂下片３に引っ掛かるのを防止できる。
踏板１の上壁８の前部にゴム製の滑り止め材１５を設けてあるので、足が滑るのを防止できる。 This staircase is configured as described above, and when a person goes up and down the staircase, a load is particularly applied to the front side of the tread board 1, but by providing a hanging piece 3 on the front surface of the hollow tread board 1, It is possible to effectively prevent the tread 1 from being bent by a load without increasing the thickness of the main body 13. Therefore, it is possible to cope with a wide staircase between the side plates 4 and 4 while suppressing costs.
In addition, this staircase has good design characteristics because the mounting bracket 2 is concealed by the hanging piece 3 of the tread board 1. By providing the hanging piece 3 on the front surface of the tread board 1, since the tread board 1 having a thickness of substantially 30 mm appears to have a thickness of 60 mm when viewed from the front, a sense of security can be given to those who climb the stairs.
Further, this staircase is provided with a horizontal piece 20 protruding rearward at the lower end of the hanging piece 3 so that the hanging piece 3 is reinforced, and the hanging piece 3 is inclined rearward so that the horizontal piece 20 is a non-slip material. By being located under 15, the strength of the entire tread board 1 is further improved. Furthermore, the front and rear walls 10 and 11 of the tread plate 1 are inclined in an inverted C shape, and the hanging piece 3 is inclined rearward, so that the material cost can be reduced while ensuring a wide tread surface. Further, since the drooping piece 3 is inclined rearward, it is possible to prevent the toes from being caught by the drooping piece 3.
Since the rubber anti-slip material 15 is provided at the front portion of the upper wall 8 of the tread board 1, it is possible to prevent the foot from slipping.

本発明は以上に述べた実施形態に限定されない。踏板や取付金具の形状、材質は、適宜変更することができる。階段の設置される場所は問わない。 The present invention is not limited to the embodiments described above. The shape and material of the tread board and the mounting bracket can be changed as appropriate. It doesn't matter where the stairs are installed.

１踏板
２取付金具
３垂下片 1 Tread plate 2 Mounting bracket 3 Hanging piece

Claims

Equipped with a hollow tread plate and mounting brackets that support both ends of the tread plate, the hollow tread plate is an extruded material of aluminum alloy, has a hanging piece on the front, and the hanging piece protrudes rearward at the lower end A staircase having a horizontal piece that is integrally formed and having a mounting piece concealed by a hanging piece.