JP2013129958A - Extension type footstool or the like - Google Patents

Extension type footstool or the like Download PDF

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Publication number
JP2013129958A
JP2013129958A JP2011277877A JP2011277877A JP2013129958A JP 2013129958 A JP2013129958 A JP 2013129958A JP 2011277877 A JP2011277877 A JP 2011277877A JP 2011277877 A JP2011277877 A JP 2011277877A JP 2013129958 A JP2013129958 A JP 2013129958A
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Prior art keywords
auxiliary
legs
pair
main
top plate
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Hiroyuki Kubota
弘之 久保田
Takuma Ishibashi
拓真 石橋
Tamio Kawashima
民男 川島
Jun Suzuki
潤 鈴木
Shunsuke Akatsuka
俊介 赤塚
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SANWA CLEAN KK
Kandenko Co Ltd
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SANWA CLEAN KK
Kandenko Co Ltd
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Priority to JP2011277877A priority Critical patent/JP2013129958A/en
Publication of JP2013129958A publication Critical patent/JP2013129958A/en
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  • Tables And Desks Characterized By Structural Shape (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a strong footstool or the like with a simple structure that is an extension type which extends to twice as large as a top plate of one footstool or the like and such that an extension never separates and is united when the footstool or the like is housed.SOLUTION: Two footstools are provided which are substantially in the same shape and of the same size and equal in height of a top plate while each having leg bodies at four corners of the top plate. When one is a main footstool 1 and the other is a first auxiliary footstool 4 such that a pair of leg bodies among four leg bodies of the footstool 1 or the first auxiliary footstool 4 are front leg bodies and the other pair are rear foot bodies, a width between outer side faces of a front pair of leg bodies 3a of the main footstool 1 is made narrower than a width between outer side faces of a rear pair of leg bodies 3b, the first auxiliary footstool 4 has a front pair of leg bodies 6a provided on both sides of a top plate 5 to be positioned outside the rear leg bodies 3b of the main footstool 1, and lock pieces 7 are projected inward from a front pair of leg bodies 6a of the first auxiliary footstool 4, and not locked to the front pair of leg bodies 3a of the main footstool 1, but locked to the rear leg bodies 3b.

Description

この発明は、踏み台、テーブル、机、作業台等であって、天板面が伸縮するものに関するものである。 The present invention relates to a step board, a table, a desk, a work table, and the like that expand and contract a top plate surface.

従来、これらの踏み台、テーブル、机、作業台等では、必要な時に天板を広げたり、また、不要時には狭めたりする構成の物がある。これらのテーブル等を広げるものは、天板の脇に補助板を、蝶番を介して設け、常時は折り畳んでおき必要時に補助板を広げて、天板を広く使う構成となっているものが多い。 Conventionally, these steps, tables, desks, work tables, and the like have a configuration in which the top plate is widened when necessary and narrowed when not needed. Many of these tables, etc., have a configuration in which an auxiliary plate is provided on the side of the top plate via a hinge and is folded at all times, and the auxiliary plate is expanded when necessary, so that the top plate is widely used. .

しかし、このタイプのものは、補助板の折り畳み収納や支持荷重の問題から補助板をテーブル本体の天板と同じ大きさのものはなく、あくまで天板よりはかなり小さな面積の補助板となってしまう。そこで、大小のテーブル等を設けて、大型のテーブルの下に小型のテーブルを収納しておき、必要時に小型のテーブルを大型のテーブルの下から引き出して使用するものがある。この場合、大型のテーブルと小型のテーブルでは天板の高さが異なり、使い勝手が悪い。 However, in this type, there is no auxiliary plate that is the same size as the top plate of the table body due to the problem of folding storage and supporting load of the auxiliary plate. End up. Therefore, there is a type in which a large and small table is provided, a small table is stored under the large table, and the small table is pulled out from the large table when necessary. In this case, the height of the top plate differs between the large table and the small table, which is not convenient.

特許文献１のものは、この点を考慮して開発されたもので、常時は、大型のテーブルの下に小型のテーブルを収納しており、必要時に小型のテーブルを引きだすとともに、小型のテーブルを引き出した後、小型のテーブルの天板を、大型のテーブルの天板と同じ高さまで引き上げる装置を設けたものである。 The thing of patent document 1 was developed in consideration of this point, and normally, a small table is stored under a large table, and a small table is pulled out when necessary, and a small table is used. After pulling out, a device for lifting the top of the small table to the same height as the top of the large table is provided.

一方、１個のテーブルでは、天板が狭い場合に複数の同形同大のテーブル等を並べて使用している。しかしながら、これらのテーブル等は、不要時には嵩張るため、順に上に積み重ねていく構成としている。 On the other hand, with one table, when the top plate is narrow, a plurality of tables having the same shape and the same size are used side by side. However, since these tables and the like are bulky when not needed, they are configured to be stacked in order.

特許文献２のものは、このような、スタキング式テーブルであり、積み重ねの際、テーブルの脚が邪魔にならないように、脚の位置をずらしたり、回転させたりできるものである。 The thing of patent document 2 is such a stacking type table, and when stacking, the position of the leg can be shifted or rotated so that the leg of the table does not get in the way.

特許第４６４０９５５号公報Japanese Patent No. 4640955 特開平８−１００４８号公報JP-A-8-10048

しかしながら、特許文献１のものは、小型のテーブルを引き出した際、天板を引き上げる装置を有するため、構造が複雑となり、また、重量も重くなり、その分小型のテーブルの引出しや収納作業に手間がかかる。また、引き上げや引下げに際しても引手ハンドルを回転させて天板を引き上げ又は引下げる作業が必要であり、手間のかかるものである。 However, since the apparatus of Patent Document 1 has a device for pulling up the top plate when a small table is pulled out, the structure becomes complicated and the weight becomes heavy. It takes. Further, when lifting or lowering, it is necessary to rotate the pull handle to lift or lower the top plate, which is troublesome.

また、特許文献２等のスタキング式テーブルは、複数の同形同大のテーブルを並べるため、天板は同一面になるが、収納の際、上から重ねていくため手間がかかる。さらに、複数のテーブルを並べた場合、個々のテーブルが相互に接続されていないため、ちょっとした衝撃により離れてしまい、テーブルの上に載置したものが落ちてしまう恐れがある。これを踏み台に用いた場合は、踏み台に乗った人が不安定となり、安全性に欠ける。また、相互に係止接続されていないため複数のテーブル等が紛失する恐れもある。 In addition, the stacking table of Patent Document 2 and the like arranges a plurality of tables of the same shape and size, so that the top plate becomes the same surface, but it takes time and effort to stack from the top during storage. Further, when a plurality of tables are arranged, the individual tables are not connected to each other, so that they may be separated by a slight impact, and the one placed on the table may fall. If this is used as a step, the person on the step becomes unstable and lacks safety. In addition, a plurality of tables and the like may be lost because they are not locked and connected to each other.

そこで、この発明は、これらの従来技術に鑑み、１台の踏み台等の天板の倍に広がる伸縮式で、拡がったものが離れず天板が連続して形成され、収納時は一体になり安定して使用できる、簡単な構造で堅牢な踏み台等を提供することを目的としたものである。 Therefore, in view of these prior arts, the present invention is a telescopic type that spreads twice as much as the top plate of a single platform, etc., and the top plate is continuously formed without separating the spread, and it is integrated when stored. The purpose is to provide a stable stepping board with a simple structure that can be used stably.

請求項１の発明は、天板の四隅に脚体を有するほぼ同形同大で天板の高さが同じ踏み台等を２つ設け、一方を主踏み台等とし、他方を第１補助踏み台等とし、各踏み台等の４本の脚体の内、一対の脚体を前方とし、他対の脚体を後方とした場合、主踏み台等の前方の一対の脚体を前記天板の左右両側縁より内側に設け、かつこれらの脚体の外側面間の幅を後方の一対の脚体の外側面間の幅より狭くし、前記第１補助踏み台等の前方の一対の脚体を主踏み台等の後方の脚体の外側に位置するように天板の左右両側縁に設け、また、後方の一対の脚体を、主踏み台等の上に第１補助踏み台等を重ねた際、主踏み台等の後方の一対の脚体の後方又は左右両側に位置するように設け、前記第１補助踏み台等の前方の一対の脚体から係止片を夫々内側に向けて突設し、第１補助踏み台等を主踏み台等の上に重ねた際、前記各係止片は主踏み台等の天板の下方内側に突出するが当該係止片の先端は主踏み台等の前方の一対の脚体の各外側面位置には至らず、かつ、第１補助踏み台等を主踏み台等の後方に並べた際、前記係止片が主踏み台等の後方の脚体を係止し、第１補助踏み台等の後方への動きが前記係止片により規制される構成とした伸縮式踏み台等とした。 The invention according to claim 1 is provided with two steps and the like having substantially the same shape and the same size and having the same height with the legs at the four corners of the top plate, one of which is a main step and the other is a first auxiliary step. Of the four legs such as each step, when the pair of legs is the front and the other pair of legs is the rear, the pair of front legs such as the main step is the left and right sides of the top plate The width between the outer surfaces of these legs is narrower than the width between the outer surfaces of the pair of rear legs, and the pair of front legs such as the first auxiliary step platform is used as the main step platform. Provided on the left and right side edges of the top plate so as to be positioned outside the rear legs of the main plate, etc., and when the first auxiliary step platform is overlapped with the pair of rear legs on the main step platform, etc. Are provided so as to be positioned behind or on the left and right sides of the pair of rear legs such as the first auxiliary stepping platform, and the locking pieces are respectively inward from the pair of front legs such as the first auxiliary stepping platform. When the first auxiliary step stool or the like is stacked on the main step stool, each of the locking pieces protrudes below the top plate of the main step stool, but the tip of the locking piece is the main step stool. When the first auxiliary stepping platform or the like is arranged behind the main stepping platform or the like, the locking piece is used to move the rear leg of the main stepping platform or the like. The telescopic stepping platform or the like is configured such that the rearward movement of the first auxiliary stepping platform or the like is restricted by the locking piece.

また、請求項２の発明は、請求項１の発明において、主踏み台等の天板の後方端縁上面が後方に向けて下方に傾斜した傾斜縁とし、第１補助踏み台等の天板の前方端縁下面が後方に向けて下方に傾斜した傾斜縁とし、第１補助踏み台等を主踏み台等の後方に引き出して並べた際、主踏み台等の後方の前記傾斜縁と第１補助踏み台等の前方の前記傾斜縁とが重なり、各天板が水平となる構成である伸縮式踏み台等とした。 The invention according to claim 2 is the invention according to claim 1, wherein the upper surface of the rear end edge of the top plate such as the main step is inclined downward and the front of the top plate such as the first auxiliary step. When the lower edge of the edge is an inclined edge that is inclined downward toward the rear, and the first auxiliary step stool is pulled out to the rear of the main step stool, etc., the rear edge of the main step slat and the first auxiliary step slat A telescopic stepping platform or the like having a configuration in which the inclined edge in front is overlapped and each top plate is horizontal.

また、請求項３の発明は、請求項１又は２の発明において、第１補助踏み台等を主踏み台等の上に重ねて載せた際、第１補助踏み台等と主踏み台等を係止自在な係止手段を設けた伸縮式踏み台等とした。 The invention according to claim 3 is the invention according to claim 1 or 2, wherein when the first auxiliary step stool is placed on the main step stool, the first auxiliary step stool and the main step stool can be freely locked. It was set as the expansion-contraction type step etc. which provided the latching means.

また、請求項４の発明は、請求項１〜３のいずれかの発明において、主踏み台等の脚体に複数の脚体相互に渡した補強用梁を設けた伸縮式踏み台等とした。 According to a fourth aspect of the present invention, in the invention according to any one of the first to third aspects, a telescopic stepping platform or the like in which a reinforcing beam is provided between a plurality of legs on a leg such as a main step.

また、請求項５の発明は、請求項１〜４のいずれかの発明において、第１補助踏み台等を主踏み台等の上に重ねて載せた際、第１補助踏み台等の各脚体の下端に、主踏み台等の脚体の下端位置まで伸びる伸縮脚を伸縮、固定自在に設けた伸縮式踏み台等とした。 The invention of claim 5 is the invention according to any one of claims 1 to 4, wherein when the first auxiliary step stool is placed on the main step stool, the lower ends of the legs such as the first auxiliary step stool. In addition, a telescopic stepper or the like provided with a telescopic leg extending to the lower end position of the leg body such as a main stepper so as to be telescopic and fixed.

また、請求項６の発明は、請求項１〜５のいずれかの発明において、前記主踏み台等及び第１補助踏み台等とほぼ同形同大の第２補助踏み台等を設け、当該第２補助踏み台等の前方の一対の脚体は天板の左右の両側から垂下させ、当該第２補助踏み台等を第１補助踏み台等の上に載せた際、前方の一対の脚体は、第１補助踏み台等の前方の一対の脚体の後ろに位置し、後方の一対の脚体は第１補助踏み台等の後方の一対の脚体の両側又は後方に位置し、また、第２補助踏み台等の前方の一対の各脚体から横断面鍵型の係止片を回転自在に設け、定位置では、係止片の先端部が天板の両側縁の下方内側に突出し、回転位置では天板の両側縁下方に突出しない形状であり、当該第２補助踏み台等を、前記主踏み台等の後方に並べた第１補助踏み台等の後方に並べた際、前記係止片を定位置に回転させると前記第１補助踏み台等の後方の一対の各脚体を係止し、第２補助踏み台等の後方への動きが前記係止片により規制される構成である、伸縮式踏み台等とした。 The invention according to claim 6 provides the second auxiliary step in the invention according to any one of the first to fifth aspects, wherein a second auxiliary step having the same shape and size as the main step and the first auxiliary step is provided. When a pair of front legs such as a platform are suspended from the left and right sides of the top board and the second auxiliary platform is placed on the first auxiliary platform, the pair of front legs is a first auxiliary It is located behind a pair of front legs such as a footrest, and a pair of rear legs are located on both sides or behind a pair of rear legs such as a first auxiliary footrest, and a second auxiliary footrest, etc. A locking piece having a cross-sectional key shape is rotatably provided from each pair of front legs, and in a fixed position, the leading ends of the locking pieces protrude to the lower inner side of both side edges of the top plate. A first auxiliary step that has a shape that does not protrude downward on both side edges, and in which the second auxiliary step and the like are arranged behind the main step and the like When the locking piece is rotated to a fixed position, the pair of rear legs such as the first auxiliary stepping platform are locked, and the rearward movement of the second auxiliary stepping step is It was set as the telescopic stepping platform etc. which are the structures controlled by a stop piece.

また、請求項７の発明は、請求項６の発明において、前記係止片と前方の脚体との間にバネを設け、当該バネは、前記係止片を常時定位置に付勢している、伸縮式踏み台等とした。 According to a seventh aspect of the invention, in the sixth aspect of the invention, a spring is provided between the locking piece and the front leg, and the spring constantly biases the locking piece to a fixed position. Telescopic stepping platform.

また、請求項８の発明は、請求項６又は７の発明において、前記第２補助踏み台等を第１補助踏み台等の上に重ねて載せた際、第２補助踏み台等と第１補助踏み台等を係止自在な係止手段を設けた伸縮式踏み台等とした。 The invention according to claim 8 is the invention according to claim 6 or 7, wherein when the second auxiliary step stool is placed on the first auxiliary step stool etc., the second auxiliary step stool, the first auxiliary step stool, etc. The telescopic stepping platform provided with a locking means that can be freely locked.

請求項１〜８の発明では、主踏み台等と第１補助踏み台等とは略同形同大で天板の高さが同じであるので、主踏み台等の後方に第１補助踏み台等を並べた場合、主踏み台等の天板と第１補助踏み台等の天板とほぼ同じ大きさであるため当該踏み台等の天板が２倍に広がると同時に、各天板上面が面一となり使用しやすい。 In the first to eighth aspects of the present invention, the main step and the first auxiliary step and the like are substantially the same shape and the same size, and the top plate has the same height. Therefore, the first auxiliary step and the like are arranged behind the main step and the like. In this case, the top plate of the main platform and the top plate of the first auxiliary platform are almost the same size. Cheap.

しかも、主踏み台等と第１補助踏み台等とは、第１補助踏み台等の一対の脚から突出する係止片で、主踏み台等の後方の一対の脚部が係止されるため、第１補助踏み台等を伸ばして広げて並べて使用している場合でも、第１補助踏み台等の天板と主踏み台等の天板との継ぎ目がつながっており、外部からの衝撃があっても相互に離れず、安全である。従って、作業者がこの天板の上を移動したりする際につまずいて転んだりすることがなく、安全に移動できる。また、この様に主踏み台等と第１補助踏み台等がつながっているため、一方が紛失することも無い。 Moreover, the main step and the first auxiliary step and the like are locking pieces protruding from a pair of legs such as the first auxiliary step and the pair of rear legs of the main step and the like are locked. Even when the auxiliary steps are extended and used side by side, the seam between the top plate of the first auxiliary step and the top plate of the main step is connected so that they can be separated from each other even if there is an external impact. It is safe. Therefore, the operator can move safely without tripping over the top plate. Moreover, since the main step and the first auxiliary step are connected in this way, one of them is not lost.

また、第１補助踏み台等を主踏み台等の上に重ねると天板が略同じ大きさのため一体となり、また、主踏み台等の天板の上に第１補助踏み台等の天板が重なるため、当該踏み台等の設置面に対して第１補助踏み台等の天板が平行となるので、この状態おいても踏み台等として安定して使用できる。また、重ねて使用している場合でも、第１補助踏み台等の後方の一対の脚体が、主踏み台の後方の一対の脚体の真後ろに来ているため、第１補助踏み台等はそこで動きが抑止され、外れることがない。 Further, when the first auxiliary stepping platform or the like is stacked on the main stepping step or the like, the top plate is substantially the same size, and the top plate such as the first auxiliary stepping step or the like overlaps with the top stepping plate or the like. Since the top plate such as the first auxiliary step is parallel to the installation surface of the step, the step can be stably used even in this state. In addition, even when used in layers, the pair of rear legs such as the first auxiliary platform is located directly behind the pair of legs behind the main platform, so that the first auxiliary platform is moved there. Is deterred and will not come off.

また、上記のように第１補助踏み台等を主踏み台等から離すそうとすると、第１補助踏み台等の前方の一対の脚体から夫々突出する係止片が主踏み台の後方の一対の各脚体を係止し、後方への動きを規制される。しかし、この場合においても前記係止片が主踏み台等の天板の下面から離れた位置に突出しているため、第１補助踏み台等は主踏み台等に対してやや上に持ち上げることが出来、さらに第１補助踏み台等を主踏み台との上に重ねた際も前記係止片は主踏み台等の天板の下面からやや離れた位置に突出しているため、第１補助踏み台等をやや持ち上げたりできる。 Moreover, when it is going to separate | separate a 1st auxiliary step stand etc. from a main step stand etc. as mentioned above, the latching piece which each protrudes from a pair of front leg bodies, such as a 1st auxiliary step stand, will be a pair of each leg on the back of a main step stand. The body is locked, and the backward movement is restricted. However, even in this case, since the locking piece protrudes to a position away from the lower surface of the top plate such as the main step, the first auxiliary step can be lifted slightly above the main step. Even when the first auxiliary step or the like is stacked on the main step, the locking piece protrudes slightly away from the lower surface of the top plate such as the main step, so that the first auxiliary step or the like can be lifted slightly. .

それ故、第１補助踏み台等を主踏み台等に対して引き出したり収納したりする際、第１補助踏み台等は自由度が大きく容易に動かすことが出来る。従って、この発明では主踏み台等や第１補助踏み台等にスライド機構としてレールがなく、構造が簡単であるにもかかわらず、第１補助踏み台等を主踏み台等に対して広げたり、重ねたりする際作業者は片手でスムーズに行うことができる。 Therefore, when the first auxiliary step or the like is pulled out or stored with respect to the main step or the like, the first auxiliary step or the like can be easily moved with a large degree of freedom. Therefore, in the present invention, the main step or the like or the first auxiliary step or the like does not have a rail as a slide mechanism, and the first auxiliary step or the like is extended or overlapped with the main step or the like despite the simple structure. The operator can perform smoothly with one hand.

また、請求項２の発明では、第１補助踏み台等を、主踏み台等の後方に伸ばして並べる際、それぞれの突き合わせ箇所の傾斜縁相互を重ねることにより、これらの傾斜縁同士がガイドとなり、第１補助踏み台等と主踏み台等とを突き合せやすい。また、第１補助踏み台等と主踏み台等を隙間なく一体に並べることが出来る。また、この場合は、主踏み台等の後方の一対の脚体と第１補助踏み台等の前方の一対の脚体とが左右両側で重なり、係止片を大きく前方に伸ばす必要がない。 Further, in the invention of claim 2, when the first auxiliary step stool and the like are extended and arranged rearward of the main step stool, the inclined edges of the respective butted portions are overlapped with each other to serve as a guide, 1 Easy to match the auxiliary step and the main step. In addition, the first auxiliary step and the like can be aligned with no gap. Further, in this case, the pair of rear legs such as the main step and the pair of front legs such as the first auxiliary step overlap on both the left and right sides, and it is not necessary to extend the locking piece greatly forward.

また、請求項３の発明によれば、第１補助踏み台等を主踏み台等の上に重ねて載せた際、これらの踏み台等を係止手段で係止できるため、この状態で使用する際、第１補助踏み台等がずれたりがたついたりせず、より安定性が良い。 Further, according to the invention of claim 3, when the first auxiliary stepping platform or the like is placed on the main stepping step or the like, the stepping step or the like can be locked by the locking means. Therefore, when used in this state, The first auxiliary stepping platform does not rattle or rattle, and the stability is better.

また、請求項４の発明によれば、主踏み台等がより堅牢になるため、第１補助踏み台等を主踏み台等に載せた場合に、人がこの上に乗っても十分荷重に耐えられる。 According to the invention of claim 4, since the main step and the like become more robust, when the first auxiliary step and the like are placed on the main step and the like, even if a person gets on the step, the load can withstand a sufficient load.

また、請求項５の発明によれば、第１補助踏み台等を主踏み台等に載せた場合に、第１補助踏み台等の脚体の下端は、床や地面から離れるが、伸縮脚を伸ばすことによって、８本の脚体で全体の踏み台等を支えることとなり、人がこの上に乗っても十分荷重に耐えられる。 According to the invention of claim 5, when the first auxiliary stepping platform or the like is placed on the main stepping plate or the like, the lower ends of the leg bodies such as the first auxiliary stepping platform are separated from the floor or the ground, but by extending the telescopic legs. , 8 legs will support the whole platform, etc., and even if a person rides on this, it will be able to withstand a sufficient load.

また、請求項６の発明によれば、主踏み台等、第１補助踏み台等及び第２補助踏み台等は略同形同大で天板の高さが同じであるので、主踏み台等の後方に第１補助踏み台等、第２補助踏み台等を並べた場合、各踏み台等の天板がほぼ同じ大きさであるため当該踏み台等の天板が３倍に広がると同時に、各天板上面が面一となり使用しやすい。さらに、同構造で第３補助踏み台等を付加することも可能である。また、主踏み台等、第１補助踏み台等及び第２補助踏み台等を順に積み重ねた際も、各天板は略同じ大きさであり、これらが三重に重なるため、最上段の天板に作業者が上に乗っても安定する。その他、請求項１と同様な効果を有する。 According to the invention of claim 6, since the main step, the first auxiliary step, the second auxiliary step and the like are substantially the same shape and the same top plate height, When the first auxiliary stepping platform, etc. are arranged side by side, the top plate of each step, etc. is approximately the same size, so that the top plate of the stepping step spreads out three times and the top surface of each top plate is the surface. Easy to use. Furthermore, it is possible to add a third auxiliary step or the like with the same structure. In addition, when the main step, first auxiliary step, etc. and second auxiliary step, etc. are stacked in order, the tops are substantially the same size, and they overlap in triplicate. Even if you ride on top, it will be stable. The other effects are the same as those of the first aspect.

請求項７の発明によれば、係止片が回動自在であるが、バネのより常時定位置にあるため、使用に際して使用しやすい。 According to the invention of claim 7, although the locking piece is rotatable, it is easy to use in use because it is always in a fixed position of the spring.

請求項８の発明によれば、第２補助踏み台等と第１補助踏み台等を係止する係止手段を設けているため、これらを積み重ねて使用する場合、第１補助踏み台等と第２補助踏み台等とがずれたりがたついたりせず、より安定性が良い。 According to the eighth aspect of the present invention, since the locking means for locking the second auxiliary step and the like and the first auxiliary step and the like is provided, when these are stacked and used, the first auxiliary step and the second auxiliary step It is more stable because it does not get out of contact with the platform.

この発明は、天板の四隅に脚体を有するほぼ同形同大で天板の高さが同じ踏み台等を２つ設け、一方を主踏み台等とし、他方を第１補助踏み台等とし、各踏み台等の４本の脚体の内、一対の脚体を前方とし、他対の脚体を後方とした場合、主踏み台等の前方の一対の脚体を前記天板の左右両側縁より内側に設け、かつこれらの脚体の外側面間の幅を後方の一対の脚体の外側面間の幅より狭くし、前記第１補助踏み台等の前方の一対の脚体を主踏み台等の後方の脚体の外側に位置するように天板の両側に設け、また、後方の一対の脚体を、主踏み台等の上に第１補助踏み台等を重ねた際、主踏み台等の後方の一対の脚体の後方に位置するように設け、前記第１補助踏み台等の前方の一対の脚体から係止片を夫々主踏み台等の天板の下方内側に向けて突設し、当該係止片の先端は主踏み台等の前方の一対の脚体の各外側面位置には至らず、かつ、第１補助踏み台等を主踏み台等の後方に並べた際、前記係止片が主踏み台等の後方の脚体を係止し、第１補助踏み台等の後方への動きが前記係止片により規制される構成とした伸縮式踏み台等とした。 The present invention provides two steps or the like having substantially the same shape and the same size and having the same height with the legs at the four corners of the top plate, one as the main step and the other as the first auxiliary step and the like. Of the four legs such as a step stool, when one pair of legs is the front and the other pair of legs is the rear, the pair of front legs such as the main step is inside the left and right side edges of the top plate. And the width between the outer surfaces of these legs is made narrower than the width between the outer surfaces of the pair of rear legs, and the pair of front legs such as the first auxiliary platform are rearward of the main platform Provided on both sides of the top plate so as to be located outside the leg of the main body, and a pair of rear legs, when the first auxiliary footrest etc. are stacked on the main footrest etc. The locking pieces are provided from the pair of front legs such as the first auxiliary stepping platform toward the lower inner side of the top plate such as the main stepping stand. The leading end of the locking piece does not reach the position of each outer surface of the pair of front legs such as the main step, and when the first auxiliary step is arranged behind the main step, The locking piece locks the rear leg body such as the main stepping platform, and the telescopic stepping plate or the like is configured such that the backward movement of the first auxiliary stepping plate or the like is restricted by the locking piece.

これにより、踏み台等において、天板を広げて使用する場合は、第１補助踏み台等を主踏み台の後方に並べて使用でき、また不要時は第１補助踏み台等を主踏み台等の上に重ねて使用することが出来、かつこれらの踏み台は相互に係止され、むやみに外れない。 As a result, when the top plate is used in a stepper or the like, the first auxiliary stepper or the like can be used side by side behind the main stepper. When not required, the first auxiliary stepper or the like can be stacked on the main stepper or the like. They can be used and these steps are locked together and cannot be removed.

以下、この発明の実施例１を図に基づいて説明する。この実施例１では主踏み台と第1補助踏み台の組合せから成る。図１はこの発明の主踏み台の上に第１補助踏み台を載せた状態を示す斜視図、図２は同状態における正面図、図３は主踏み台の後方に第1補助踏み台を引き出して並べた状態を示す斜視図、図４は同状態における平面図、図５は主踏み台の上に第1補助踏み台を載せた状態における平面図である。 Embodiment 1 of the present invention will be described below with reference to the drawings. The first embodiment is a combination of a main step and a first auxiliary step. FIG. 1 is a perspective view showing a state in which a first auxiliary step is placed on the main step of the present invention, FIG. 2 is a front view of the same step, and FIG. 3 is arranged by pulling out the first auxiliary step behind the main step. FIG. 4 is a plan view of the state, FIG. 4 is a plan view of the same state, and FIG. 5 is a plan view of the first auxiliary step on the main step.

図１〜図３に示すように、天板２の四隅に脚体３を有する主踏み台１と、これとほぼ同形同大で天板の高さが同じである、天板５の四隅に脚体６を有する第１補助踏み台４とが設けられている。これらの主踏み台１と第１補助踏み台４とは、主踏み台１の後方に第１補助踏み台４を並べたり、主踏み台１の天板２の上に第１補助踏み台４の天板５を重ねて使用することが出来る。 As shown in FIGS. 1 to 3, the main step 1 having legs 3 at the four corners of the top plate 2 and the four corners of the top plate 5 having the same shape and the same size and the same height as the top plate. A first auxiliary step 4 having legs 6 is provided. These main step 1 and first auxiliary step 4 are arranged such that the first auxiliary step 4 is arranged behind the main step 1, or the top 5 of the first auxiliary step 4 is stacked on the top 2 of the main step 1. Can be used.

これらの各踏み台１又は４の各４本の脚体の内、一対の脚体３ａ又は６ａを前方とし、他対の脚体３ｂ又は６ｂを後方とした場合、主踏み台１の前方の一対の脚体３ａは、天板２の左右両側縁より内側に設けられ、後方の一対の脚体３ｂは天板２の左右両側縁位置に設けられている。これにより前方の一対の脚体３ａの外側面間の幅は後方の一対の脚体３ｂの外側面間の幅より狭くなっている。 Of each of the four legs of each step 1 or 4, when the pair of legs 3 a or 6 a is the front and the other pair of legs 3 b or 6 b is the rear, the pair of legs in front of the main step 1 The leg 3 a is provided inside the left and right side edges of the top plate 2, and the pair of rear legs 3 b is provided at the left and right side edges of the top plate 2. As a result, the width between the outer surfaces of the pair of front legs 3a is narrower than the width between the outer surfaces of the pair of rear legs 3b.

また、前記第１補助踏み台４は、前方の一対の脚体６ａは夫々主踏み台１の後方の脚体３ｂの外側に位置するように天板５の左右両側縁に設けられ、さらに、前記第１補助踏み台４の後方の一対の脚体６ｂは、主踏み台１の上に第１補助踏み台４を重ねた際、主踏み台１の後方の一対の脚体３ｂの後方に位置するように設けられている。従って、この分天板５は、主踏み台１の天板２より後方に長くなっている。また、主踏み台１の上に第１補助踏み台４を重ねた際、主踏み台１の後方の一対の脚体３ｂの左右両側に位置するように設けても良い。この場合は、天板５と天板２とは同じ大きさとなる。 The first auxiliary step 4 is provided on both left and right edges of the top plate 5 such that the pair of front legs 6a are located outside the legs 3b behind the main step 1, respectively. The pair of legs 6b behind the one auxiliary step 4 is provided to be positioned behind the pair of legs 3b behind the main step 1 when the first auxiliary step 4 is stacked on the main step 1. ing. Therefore, the top plate 5 is longer to the rear than the top plate 2 of the main step 1. Further, when the first auxiliary step 4 is overlaid on the main step 1, it may be provided so as to be positioned on both the left and right sides of the pair of legs 3b behind the main step 1. In this case, the top plate 5 and the top plate 2 have the same size.

また、前記第１補助踏み台４の前方の一対の脚体６ａの前面夫々から略横断面鉤型の係止片７が夫々内側に向けて突設されている。また、当該各係止片７は、図２及び図５に示すように、主踏み台１の上に第１補助踏み台４を重ねた際、主踏み台１の天板２の下面からやや離れた位置で内側に突出し、かつ、主踏み台１の前方の一対の脚体３ａの各外側面位置には至らず、また、主踏み台１の後方に第１補助踏み台４を伸ばした際、図３及び図４に示すように、主踏み台１の後方の脚体３ｂの外側面より内側まで突出した長さとして、これらの係止片７は、主踏み台１の後方の脚体３ｂを係止する。 In addition, hooks 7 having a substantially horizontal cross-section project from the front surfaces of the pair of legs 6a in front of the first auxiliary step platform 4 so as to protrude inward. Further, as shown in FIGS. 2 and 5, each of the locking pieces 7 is located slightly away from the lower surface of the top plate 2 of the main step 1 when the first auxiliary step 4 is stacked on the main step 1. 3 and FIG. 3 and FIG. 3 when the first auxiliary step 4 is extended to the rear of the main step 1 and does not reach the outer surface positions of the pair of legs 3a in front of the main step 1. As shown in FIG. 4, these locking pieces 7 lock the legs 3 b behind the main step 1 as the length protruding from the outer surface of the legs 3 b behind the main step 1 to the inside.

また、図６は前記第１補助踏み台４を主踏み台１の後方に並べた際の接続箇所の側面図であり、図７は、当該接続箇所の中央縦断面図である。図７に示すように、主踏み台１の天板２は後方端縁上面が後方に向けて下方に傾斜した傾斜縁２ａとし、また、第１補助踏み台４の天板５は前方端縁下面が後方に向けて下方に傾斜した傾斜縁５ａとしている。従って、第1補助踏み台４を主踏み台１の後方に引き出して並べた際、主踏み台１の後方の前記傾斜縁２ａと第1補助踏み台４の前方の前記傾斜縁５ａとが重なり、各天板２と５は略水平となる構成となっている。 FIG. 6 is a side view of a connection place when the first auxiliary step 4 is arranged behind the main step 1, and FIG. 7 is a central longitudinal sectional view of the connection place. As shown in FIG. 7, the top plate 2 of the main step 1 has an inclined edge 2a whose upper surface at the rear end is inclined downward toward the rear, and the upper plate 5 of the first auxiliary step 4 has a lower surface at the front end. The inclined edge 5a is inclined downward toward the rear. Accordingly, when the first auxiliary step 4 is pulled out and arranged behind the main step 1, the inclined edge 2a behind the main step 1 and the inclined edge 5a in front of the first auxiliary step 4 overlap, and each top plate 2 and 5 are configured to be substantially horizontal.

これにより、図６及び図７に示すように、主踏み台１の後方の一対の脚体３ｂと第１補助踏み台４の前方の一対の脚体６ａとは左右方向の内側と外側で略重なる位置となり、また、これらの天板２及び５も接続面が離れず、面一に一体につながっている。また、これらの傾斜縁２ａと傾斜縁５ａは、第１補助踏み台４を引き出して主踏み台１に接続する際のガイドの役目を果たす。 As a result, as shown in FIGS. 6 and 7, the pair of legs 3 b behind the main step 1 and the pair of legs 6 a in front of the first auxiliary step 4 substantially overlap on the inside and outside in the left-right direction. In addition, these top plates 2 and 5 are also connected to the same surface without leaving a connection surface. Further, the inclined edge 2 a and the inclined edge 5 a serve as a guide when the first auxiliary step 4 is pulled out and connected to the main step 1.

また、図１及び２に示すように、第１補助踏み台４の前方の一方の脚体６ａに基部を回転自在に軸支された回転係止片８が設けられている。この回転係止片８の一側縁には切欠き８ａが設けられ、主踏み台１の天板２の前面に設けられたピン９に前記切欠き８ａを嵌めることにより、第１補助踏み台４は主踏み台１に係止される。 As shown in FIGS. 1 and 2, a rotation locking piece 8 whose base is rotatably supported on one leg 6 a in front of the first auxiliary step 4 is provided. A notch 8a is provided at one side edge of the rotation locking piece 8. By fitting the notch 8a to the pin 9 provided on the front surface of the top plate 2 of the main step 1, the first auxiliary step 4 is Locked to the main step 1.

また、前記主踏み台１の前方の一対の脚体３ａと後方の一対の脚体３ｂとの間には、補強用梁１０が設けられており、さらにこれらの二つの補強用梁１０の間に枠体１１が設けられ、この枠体１１に道具箱等（図示省略）を置くことが出来るようになっている。また、前記第１補助踏み台４の天板５の略中央には、第1補助踏み台４を持ち上げるときに使用する把持用透孔１２が設けられている。 Further, a reinforcing beam 10 is provided between the pair of front legs 3 a and the pair of rear legs 3 b of the main step 1, and further between these two reinforcing beams 10. A frame 11 is provided, and a tool box or the like (not shown) can be placed on the frame 11. Further, a gripping through-hole 12 that is used when lifting the first auxiliary step 4 is provided in the approximate center of the top plate 5 of the first auxiliary step 4.

この発明は以上の構成であり、第１補助踏み台４を主踏み台１の上に載せた図１の状態において、主踏み台１の天板２の上に第１補助踏み台４の天板５が重なるため、第１補助踏み台４の天板５は主踏み台１の設置面に対して平行となり、踏み台として十分使用できる。この状態では回転係止片８がピン９に係止され、第１補助踏み台４は主踏み台１に係止されており、作業者が第１補助踏み台４の上に載っても踏み台は安定しており、荷重に耐えられる。 The present invention has the above configuration, and in the state of FIG. 1 in which the first auxiliary step 4 is placed on the main step 1, the top plate 5 of the first auxiliary step 4 overlaps the top plate 2 of the main step 1. Therefore, the top plate 5 of the first auxiliary step 4 is parallel to the installation surface of the main step 1 and can be sufficiently used as a step. In this state, the rotation locking piece 8 is locked to the pin 9, the first auxiliary step 4 is locked to the main step 1, and the step is stable even if the operator rests on the first auxiliary step 4. And can withstand the load.

この状態から、回転係止片８をピン９から外し、係止を解くと、第１補助踏み台４の把持用透孔１２に手を入れて第１補助踏み台４をやや持ち上げ、これを後方にずらせば、第１補助踏み台４は移動可能である。その際、第１補助踏み台４の前方の脚体６ａから内側に突出した各係止片７の先端は、主踏み台１の前方の脚体３ａの外側面より外側に位置するので、前方の脚体３ａが邪魔にならない。また、各係止片７は第１補助踏み台４を主踏み台１の上に重ねた際、主踏み台１の天板２の下面からやや離れているため、第１補助踏み台４を主踏み台１からその分引き上げることができる。従って、作業者は第1補助踏み台４の天板５の把持用透孔１２に手を入れて、片手でスムーズに第1補助踏み台４を広げられる。 From this state, when the rotary locking piece 8 is removed from the pin 9 and unlocked, the hand is inserted into the gripping through-hole 12 of the first auxiliary step 4 and the first auxiliary step 4 is lifted slightly, If shifted, the first auxiliary step 4 is movable. At that time, the tips of the locking pieces 7 projecting inwardly from the front legs 6a of the first auxiliary step 4 are located outside the outer surface of the front legs 3a of the main step 1, so that the front legs The body 3a does not get in the way. Further, each of the locking pieces 7 is slightly separated from the lower surface of the top plate 2 of the main step 1 when the first auxiliary step 4 is stacked on the main step 1, so that the first auxiliary step 4 is separated from the main step 1. It can be raised accordingly. Accordingly, the operator can put his hand into the grasping through-hole 12 of the top plate 5 of the first auxiliary step 4 and can smoothly spread the first auxiliary step 4 with one hand.

そして、図３に示すように、第１補助踏み台４を主踏み台１の後方にもっていくと、前記両側の係止片７の先端が、主踏み台１の後方の一対の脚体３ｂに引っかかり、これ以上第１補助踏み台４は後方に移動できない。その際、前述のように第1補助踏み台４の前端の傾斜縁５ａと主踏み台１の後端の傾斜縁２ａとを重ね合わせる。これにより主踏み台１と第１補助踏み台４との天板２及び５は面一となり、かつ、一体に接続される。また、この状態では前記各係止片７は主踏み台１の天板２の下面から離れた位置に突出している。 Then, as shown in FIG. 3, when the first auxiliary step 4 is moved to the rear of the main step 1, the tips of the locking pieces 7 on both sides are caught by a pair of legs 3b on the rear of the main step 1, The first auxiliary step 4 can no longer move backward. At that time, the inclined edge 5a at the front end of the first auxiliary step 4 and the inclined edge 2a at the rear end of the main step 1 are overlapped as described above. Thereby, the top plates 2 and 5 of the main step 1 and the first auxiliary step 4 are flush with each other and are integrally connected. Further, in this state, each of the locking pieces 7 protrudes at a position away from the lower surface of the top plate 2 of the main step 1.

従って、この様に第１補助踏み台４を主踏み台１の後方に広げた際、天板の全体の大きさが主踏み台１の天板２の大きさの２倍となる。さらに、天板２と５は接続されており、継ぎ目が離れず、この上に乗った作業者が移動したりする際つまずいて転んだりすることがなく、安全である。 Therefore, when the first auxiliary step 4 is spread behind the main step 1, the overall size of the top plate is twice the size of the top 2 of the main step 1. Furthermore, the top plates 2 and 5 are connected to each other, so that the seam is not separated and the operator who rides on the top plates 2 and 5 does not stumbl and fall when moving.

図８は、前記実施例１とは異なる実施例２における主踏み台１と第１補助踏み台４の接続状態を示す側面図である。この場合は、主踏み台１の後端に傾斜縁２ａ及び第１補助踏み台４の前端の傾斜縁５ａを有しない構成である。この場合、第１補助踏み台４の前方の一対の脚体６ａと主踏み台１の後方の脚体３ｂとは重ならない。従って、係止片７は、前方に大きく伸びで、内側に折れ曲がった形状を成した係止片７´となる。他の構成は実施例１と同じである。 FIG. 8 is a side view showing a connection state of the main step 1 and the first auxiliary step 4 in the second embodiment different from the first embodiment. In this case, the rear edge of the main step 1 does not have the inclined edge 2 a and the inclined edge 5 a of the front end of the first auxiliary step 4. In this case, the pair of legs 6 a in front of the first auxiliary step 4 and the legs 3 b behind the main step 1 do not overlap. Accordingly, the locking piece 7 becomes a locking piece 7 ′ that extends greatly forward and is bent inward. Other configurations are the same as those of the first embodiment.

また、図９は前記実施例１とは異なる実施例３を示す。前記実施例１では第１補助踏み台４を主踏み台１の上に重ねた場合に、第１補助踏み台４の前後の脚体６ａ及び６ｂは、床等から浮いてしまう。しかしこの実施例では、これらの脚体６ａ及び６ｂの下端に伸縮、固定自在な伸縮脚１３を設けたものである。これは、各脚体６ａ又は６ｂの下端が筒状となっており、各伸縮脚１３は、常時は脚体６ａ又は６ｂ内に収まっている。前記のように第１補助踏み台４を主踏み台１の上に載せた場合に、各伸縮脚１３を伸ばして使用する。 FIG. 9 shows a third embodiment different from the first embodiment. In the first embodiment, when the first auxiliary step 4 is stacked on the main step 1, the legs 6a and 6b before and after the first auxiliary step 4 are lifted off the floor or the like. However, in this embodiment, the extensible legs 13 are provided at the lower ends of these legs 6a and 6b. In this, the lower end of each leg 6a or 6b is cylindrical, and each telescopic leg 13 is always in the leg 6a or 6b. When the first auxiliary step 4 is placed on the main step 1 as described above, each telescopic leg 13 is extended and used.

従って、各脚体６ａ及び６ｂの下端付近の側面に、コの字型のガイド孔１４を穿ち、伸縮脚１３の側面から突出した突起１３ａをこのガイド孔１４に通して構成している。この突起１３ａを常時はガイド孔１４の上端の折れ曲り部に入れ、伸縮時にガイド孔に沿って突起１３ａを下方に動かし、下端の折れ曲り部に入れると、伸縮脚１３は伸びた状態で固定される。 Therefore, a U-shaped guide hole 14 is formed in the side surface near the lower end of each leg 6a and 6b, and a protrusion 13a protruding from the side surface of the telescopic leg 13 is formed through the guide hole 14. When the protrusion 13a is always placed in the bent portion at the upper end of the guide hole 14, the protrusion 13a is moved downward along the guide hole during expansion and contraction, and is inserted into the bent portion at the lower end, the extendable leg 13 is fixed in an extended state. Is done.

これにより、第１補助踏み台４を主踏み台１の上に重ねた際、主踏み台１の４本の脚体３ａ及び３ｂに加え、第１補助踏み台４の４本の脚体６ａ及び６ｂも床等に当接し、合計８本の脚体で踏み台全体に係る荷重を受けることが出来る。 Thus, when the first auxiliary step 4 is stacked on the main step 1, the four legs 6a and 6b of the first auxiliary step 4 are also added to the floor in addition to the four legs 3a and 3b of the main step 1. Can be subjected to a load on the entire platform with a total of eight legs.

前記実施例１〜３は、主踏み台１と第１補助踏み台４との組み合わせであるが、図１０〜図１４に示す実施例４は、第１補助踏み台４の上に載置自在でかつ第１補助踏み台４の後方に一体に並べられる第２補助踏み台１５を設けたものである。 The first to third embodiments are a combination of the main step 1 and the first auxiliary step 4, but the fourth embodiment shown in FIGS. 10 to 14 can be placed on the first auxiliary step 4 and is first. A second auxiliary step 15 is provided behind the first auxiliary step 4 so as to be integrally arranged.

この第２補助踏み台１５は、第１補助踏み台とほぼ同形同大の天板１６及び天板１６の四隅に脚体１７ａ及び１７ｂをそれぞれ有するものである。当該第２補助踏み台１５の前方の一対の脚体１７ａは天板１６の左右の両側縁から垂下させ、当該第２補助踏み台１５を第１補助踏み台４の上に載せた際、前方の一対の脚体１７ａは、第１補助踏み台４の前方の一対の脚体６ａの後ろに位置する。 This second auxiliary step 15 has legs 16a and 17b at the four corners of the top plate 16 and the top plate 16, respectively, which are substantially the same shape and size as the first auxiliary step. The pair of legs 17a in front of the second auxiliary step 15 is suspended from the left and right side edges of the top plate 16, and when the second auxiliary step 15 is placed on the first auxiliary step 4, the pair of front The legs 17 a are located behind the pair of legs 6 a in front of the first auxiliary step 4.

また、第２補助踏み台１５の後方の一対の脚体１７ｂは第１補助踏み台４の後方の一対の脚体６ｂの後方に位置する。従って、この分天板１６は、第１補助踏み台４の天板５より後方に長くなっている。また、図１３に示すように、第２補助踏み台１５の前方の一対の各脚体１７ａから横断面鍵型の係止片１８を回転自在に設け、定位置では、係止片１８の先端部が天板１６の左右両側縁の下方内側に突出し、また、図１４に示すように、回転位置では天板１６の左右両側縁下方に突出せず、従って第１補助踏み台４の後方の脚体６ｂを係止しない形状である。 The pair of legs 17b behind the second auxiliary step 15 is positioned behind the pair of legs 6b behind the first auxiliary step 4. Accordingly, the top plate 16 is longer to the rear than the top plate 5 of the first auxiliary step platform 4. Further, as shown in FIG. 13, a cross-section key type locking piece 18 is rotatably provided from a pair of legs 17a in front of the second auxiliary stepping platform 15, and at a fixed position, the distal end portion of the locking piece 18 is provided. Protrudes below the left and right side edges of the top plate 16 and does not protrude below the left and right side edges of the top plate 16 at the rotational position as shown in FIG. It is the shape which does not latch 6b.

従って、当該第２補助踏み台１５を、前記主踏み台１の後方に並べた第１補助踏み台４の後方に並べる際、主踏み台１の後方の一対の脚体３ｂ箇所を通過する際は、図１４に示すように、前記係止片１８を回転させて、先端部を前記脚体３ｂの外側面より外側にし、当該脚体３ｂを通過した際、図１３に示すように、前記係止片１８を定位置に回転させると当該係止片１８は前記第１補助踏み台４の後方の一対の各脚体６ｂを係止し、第２補助踏み台１５の後方への動きが前記係止片１８により規制される。 Accordingly, when the second auxiliary step 15 is arranged behind the first auxiliary step 4 arranged behind the main step 1, when passing through the pair of legs 3b behind the main step 1, FIG. As shown in FIG. 13, when the locking piece 18 is rotated so that the distal end portion is outside the outer surface of the leg 3b and passes through the leg 3b, as shown in FIG. Is rotated to a fixed position, the locking piece 18 locks the pair of legs 6b on the rear side of the first auxiliary footrest 4, and the rearward movement of the second auxiliary footrest 15 is caused by the locking piece 18. Be regulated.

また、前記係止片１８と、脚体１７ａの間には、図１３及び図１４に示すように、バネ１９が設けられ、当該バネ１９は常時、前記係止片１８を定位置に位置するように付勢している。 Further, as shown in FIGS. 13 and 14, a spring 19 is provided between the locking piece 18 and the leg 17a, and the spring 19 always positions the locking piece 18 at a fixed position. It is energized as follows.

また、前記第２補助踏み台１５の前方のいずれかの脚体１７ａと前記第１補助踏み台４の前方の脚体６ａとの間に着脱自在な係止手段を設けている。これは、前記実施例１の回転係止片８及びピン９と同様に、一方の脚体１７ａに基部を回転自在に軸支された回転係止片２０が設けられている。この回転係止片２０の一側縁には切欠きが設けられ、第１補助踏み台４の前方の脚体６ａに設けられたピン２１に前記切欠きを嵌めることにより、第２補助踏み台１５は補助踏み台４に係止される。 Further, a detachable locking means is provided between any leg 17a in front of the second auxiliary step 15 and the leg 6a in front of the first auxiliary step 4. As in the rotation locking piece 8 and the pin 9 of the first embodiment, this is provided with a rotation locking piece 20 whose base is rotatably supported on one leg 17a. A notch is provided on one side edge of the rotation locking piece 20, and the second auxiliary step 15 is formed by fitting the notch into a pin 21 provided on the leg body 6 a in front of the first auxiliary step 4. Locked to the auxiliary step 4.

また、図１５〜図１７はこの発明の実施例５を示す。この実施例５は、第２補助踏み台１５の天板１６を、第１補助踏み台４の天板５と同じ大きさにしたもので、後方の一対の脚体１７ｂを天板５の左右両側縁から垂下させたものである。他の構成は、実施例４と同じ構成である。 15 to 17 show a fifth embodiment of the present invention. In this fifth embodiment, the top plate 16 of the second auxiliary step platform 15 is made the same size as the top plate 5 of the first auxiliary step platform 4, and the pair of rear legs 17 b are connected to the left and right side edges of the top plate 5. It is a thing drooped from. Other configurations are the same as those of the fourth embodiment.

これらの実施例４及び５では、第２補助踏み台１５を設けたが、この発明では、第２補助踏み台１５と同様の第３、第４等の補助踏み台を付加して設けることができる。 In the fourth and fifth embodiments, the second auxiliary step 15 is provided. However, in the present invention, the third and fourth auxiliary steps similar to the second auxiliary step 15 can be additionally provided.

上記実施例１では、踏み台によりこの発明を説明したが、この発明は、踏み台のほか、テーブル、机、作業台等名称にかかわらず、同様の構造であれば、すべてこの発明に含まれる。 In the first embodiment, the present invention has been described with reference to a platform. However, the present invention is not limited to a platform, a table, a desk, a work table, and the like, and all structures having the same structure are included in the present invention.

この発明の実施例１の主踏み台の上に第１補助踏み台を載せた状態を示す斜視図である。It is a perspective view which shows the state which mounted the 1st auxiliary step on the main step of Example 1 of this invention. この発明の実施例１の主踏み台の上に第１補助踏み台を載せた状態における正面図である。It is a front view in the state where the 1st auxiliary step was put on the main step of Example 1 of this invention. この発明の実施例１の主踏み台の後方に第１補助踏み台を引き出して並べた状態を示す斜視図である。It is a perspective view which shows the state which pulled out and arranged the 1st auxiliary step on the back of the main step of Example 1 of this invention. この発明の実施例１の主踏み台の後方に第１補助踏み台を引き出して並べた状態の平面図である。It is a top view of the state where the 1st auxiliary step was pulled out and arranged behind the main step of Example 1 of this invention. この発明の実施例１の主踏み台の上に補助踏み台を載せた状態の平面図である。It is a top view of the state which mounted the auxiliary step on the main step of Example 1 of this invention. この発明の実施例１の主踏み台と補助踏み台の接続箇所の側面図である。It is a side view of the connection location of the main step and the auxiliary step of Example 1 of this invention. この発明の実施例１の主踏み台と補助踏み台の接続箇所の中央縦断面図である。It is a center longitudinal cross-sectional view of the connection location of the main step and the auxiliary step of Example 1 of this invention. この発明の実施例２の主踏み台と補助踏み台の接続箇所の側面図である。It is a side view of the connection location of the main step and the auxiliary step of Example 2 of this invention. この発明の実施例３の主踏み台の上に補助踏み台を載せた状態の側面図である。It is a side view of the state which mounted the auxiliary step on the main step of Example 3 of this invention. この発明の実施例４の主踏み台及び第１補助踏み台の上に第２補助踏み台を載せた状態を示す斜視図である。It is a perspective view which shows the state which mounted the 2nd auxiliary step on the main step and the 1st auxiliary step of Example 4 of this invention. この発明の実施例４の主踏み台の後方に第１補助踏み台、第１補助踏み台の後方に第２補助踏み台をそれぞれ引き出して並べた状態を示す側面図である。It is a side view which shows the state which each pulled out and arranged the 1st auxiliary step on the back of the main step of Example 4 of this invention, and the 2nd auxiliary step on the back of the 1st auxiliary step. この発明の実施例４の主踏み台の後方に第１補助踏み台、第１補助踏み台の後方に第２補助踏み台をそれぞれ引き出して並べた状態を示す平面図である。It is a top view which shows the state which each pulled out and arranged the 1st auxiliary step on the back of the main step of Example 4 of this invention, and the 2nd auxiliary step on the back of the 1st auxiliary step. この発明の実施例４の第２補助踏み台の前方の脚体に設けた係止片の定位置状態を示す斜視図である。It is a perspective view which shows the fixed position state of the locking piece provided in the leg body ahead of the 2nd auxiliary stepping board of Example 4 of this invention. この発明の実施例４の第２補助踏み台の前方の脚体に設けた係止片の回転位置状態を示す斜視図である。It is a perspective view which shows the rotation position state of the latching piece provided in the leg body ahead of the 2nd auxiliary stepping board of Example 4 of this invention. この発明の実施例５の主踏み台及び第１補助踏み台の上に第２補助踏み台を載せた状態を示す斜視図である。It is a perspective view which shows the state which mounted the 2nd auxiliary step on the main step and the first auxiliary step of Example 5 of this invention. この発明の実施例５の主踏み台の後方に第１補助踏み台、第１補助踏み台の後方に第２補助踏み台をそれぞれ引き出して並べた状態を示す側面図である。It is a side view which shows the state which each pulled out and arranged the 1st auxiliary step on the back of the main step of Example 5 of this invention, and the 2nd auxiliary step on the back of the 1st auxiliary step. この発明の実施例５の主踏み台の後方に第１補助踏み台、第１補助踏み台の後方に第２補助踏み台をそれぞれ引き出して並べた状態を示す平面図である。It is a top view which shows the state which each pulled out and arranged the 1st auxiliary step on the back of the main step of Example 5 of this invention, and the 2nd auxiliary step on the back of the 1st auxiliary step.

１ 主踏み台 ２ 天板
３ａ 脚体 ３ｂ 脚体
４ 補助踏み台 ５ 天板
６ａ 脚体 ６ｂ 脚体
７ 係止片 ７´ 係止片
８ 回転係止片 ８ａ 切欠き
９ ピン １０ 補強用梁
１１ 枠体 １２ 把持用透孔
１３ 伸縮脚 １３ａ 突起
１４ ガイド孔 １５ 第２補助踏み台
１６ 天板 １７ａ 脚体
１７ｂ 脚体 １８ 係止片
１９ バネ
1 Main Step 2 Top Plate 3a Leg 3b Leg 4 Auxiliary Step 5 Top Plate 6a Leg 6b Leg
7 Locking piece 7 'Locking piece 8 Rotating locking piece 8a Notch 9 Pin 10 Reinforcing beam 11 Frame 12 Gripping through hole 13 Telescopic leg 13a Protrusion 14 Guide hole 15 Second auxiliary step 16 16 Top plate 17a Leg 17b Leg 18 Locking piece 19 Spring

Claims (8)

天板の四隅に脚体を有するほぼ同形同大で天板の高さが同じ踏み台等を２つ設け、一方を主踏み台等とし、他方を第１補助踏み台等とし、各踏み台等の４本の脚体の内、一対の脚体を前方とし、他対の脚体を後方とした場合、
主踏み台等の前方の一対の脚体を前記天板の左右両側縁より内側に設け、かつこれらの脚体の外側面間の幅を後方の一対の脚体の外側面間の幅より狭くし、
前記第１補助踏み台等の前方の一対の脚体を主踏み台等の後方の脚体の外側に位置するように天板の左右両側縁に設け、また、後方の一対の脚体を、主踏み台等の上に第１補助踏み台等を重ねた際、主踏み台等の後方の一対の脚体の後方又は左右両側に位置するように設け、
前記第１補助踏み台等の前方の一対の脚体から係止片を夫々内側に向けて突設し、第１補助踏み台等を主踏み台等の上に重ねた際、前記各係止片は主踏み台等の天板の下方内側に突出するが当該係止片の先端は主踏み台等の前方の一対の脚体の各外側面位置には至らず、かつ、第１補助踏み台等を主踏み台等の後方に並べた際、前記係止片が主踏み台等の後方の脚体を係止し、第１補助踏み台等の後方への動きが前記係止片により規制される構成とした伸縮式踏み台等 Two steps, etc., having the same shape and size with the legs at the four corners of the top plate and the same height of the top plate are provided, one as the main step, the other as the first auxiliary step, etc. When one pair of legs is the front and the other pair of legs is the back,
A pair of front legs such as a main step are provided inside the left and right edges of the top plate, and the width between the outer surfaces of these legs is made narrower than the width between the outer surfaces of the rear pair of legs. ,
A pair of front legs such as the first auxiliary step are provided on the left and right edges of the top plate so as to be positioned outside the rear legs such as the main step, and the pair of rear legs are provided on the main step. When the first auxiliary step stool, etc. are stacked on top, etc., it is provided so as to be located behind the left or right side of the pair of legs behind the main step stool, etc.
When the locking pieces protrude from the pair of front legs such as the first auxiliary stepping platform toward the inside, and the first auxiliary stepping plate is stacked on the main stepping plate, the locking pieces are It protrudes to the lower inner side of the top plate such as a step stool, but the tip of the locking piece does not reach each outer surface position of a pair of front legs such as the main step stool, and the first auxiliary step stool etc. Telescopic stepping platform in which the locking piece locks the rear leg of the main stepping platform and the like, and the rearward movement of the first auxiliary stepping plate is restricted by the locking piece when arranged behind etc 主踏み台等の天板の後方端縁上面が後方に向けて下方に傾斜した傾斜縁とし、第１補助踏み台等の天板の前方端縁下面が後方に向けて下方に傾斜した傾斜縁とし、
第１補助踏み台等を主踏み台等の後方に引き出して並べた際、主踏み台等の後方の前記傾斜縁と第１補助踏み台等の前方の前記傾斜縁とが重なり、各天板が水平となる構成であることを特徴とする、請求項１に記載の伸縮式踏み台等。 The upper surface of the rear edge of the top plate such as the main step is inclined downward and the lower surface of the front edge of the top plate such as the first auxiliary step is inclined downward and inclined downward.
When the first auxiliary step or the like is pulled out and arranged behind the main step or the like, the rear edge of the main step or the like overlaps with the front edge of the first auxiliary step or the like, and each top plate becomes horizontal. The telescopic stepping platform or the like according to claim 1, characterized in that it has a configuration. 第１補助踏み台等を主踏み台等の上に重ねて載せた際、第１補助踏み台等と主踏み台等を係止自在な係止手段を設けたことを特徴とする、請求項１又は２に記載の伸縮式踏み台等。 3. A locking means capable of locking the first auxiliary step and the like when the first auxiliary step and the like are stacked on the main step and the like is provided. The telescopic stepping platform described. 主踏み台等の脚体に複数の脚体相互に渡した補強用梁を設けたことを特徴とする、請求項１〜３のいずれかに記載の伸縮式踏み台等。 The telescopic stepping platform or the like according to any one of claims 1 to 3, wherein a reinforcing beam is provided between a plurality of legs on a leg body such as a main step. 第１補助踏み台等を主踏み台等の上に重ねて載せた際、第１補助踏み台等の各脚体の下端に、主踏み台等の脚体の下端位置まで伸びる伸縮脚を伸縮、固定自在に設けたことを特徴とする、請求項１〜４のいずれかに記載の伸縮式踏み台等。 When the first auxiliary stepping platform is placed on top of the main stepping stand, etc., the extensible legs that extend to the lower end position of the leg of the first stepping step etc. can be expanded and contracted freely. The telescopic stepping platform or the like according to any one of claims 1 to 4, which is provided. 前記主踏み台等及び第１補助踏み台等とほぼ同形同大の第２補助踏み台等を設け、
当該第２補助踏み台等の前方の一対の脚体は天板の左右の両側から垂下させ、当該第２補助踏み台等を第１補助踏み台等の上に載せた際、前方の一対の脚体は、第１補助踏み台等の前方の一対の脚体の後ろに位置し、
後方の一対の脚体は第１補助踏み台等の後方の一対の脚体の両側又は後方に位置し、
また、第２補助踏み台等の前方の一対の各脚体から横断面鍵型の係止片を回転自在に設け、定位置では、係止片の先端部が天板の両側縁の下方内側に突出し、回転位置では天板の両側縁下方に突出しない形状であり、
当該第２補助踏み台等を、前記主踏み台等の後方に並べた第１補助踏み台等の後方に並べた際、前記係止片を定位置に回転させると前記第１補助踏み台等の後方の一対の各脚体を係止し、第２補助踏み台等の後方への動きが前記係止片により規制される構成であることを特徴とする、請求項１〜５のいずれかに記載の伸縮式踏み台等。 A second auxiliary step, etc., having the same shape and size as the main step and the first auxiliary step, etc. are provided.
When the pair of front legs such as the second auxiliary step stool is suspended from the left and right sides of the top board and the second auxiliary step stool is placed on the first auxiliary step stool, the pair of front legs is , Located behind the pair of front legs such as the first auxiliary step
The pair of rear legs are located on both sides or the rear of the pair of rear legs such as the first auxiliary step.
In addition, a key-shaped locking piece having a cross-section is rotatably provided from a pair of front legs such as the second auxiliary stepping platform, and at a fixed position, the leading ends of the locking pieces are located below the side edges of the top plate. It is a shape that protrudes and does not protrude below both side edges of the top plate at the rotation position,
When the second auxiliary step stool and the like are arranged behind the first auxiliary step stool and the like, the pair of rear parts of the first auxiliary step stool and the like are rotated when the locking piece is rotated to a fixed position. The telescopic type according to any one of claims 1 to 5, wherein each leg is locked and rearward movement of the second auxiliary stepping platform or the like is restricted by the locking piece. Steps etc. 前記係止片と前方の脚体との間にバネを設け、当該バネは、前記係止片を常時定位置に付勢していることを特徴とする、請求項６に記載の伸縮式踏み台等。 The telescopic stepping platform according to claim 6, wherein a spring is provided between the locking piece and a front leg, and the spring constantly biases the locking piece to a fixed position. etc. 前記第２補助踏み台等を第１補助踏み台等の上に重ねて載せた際、第２補助踏み台等と第１補助踏み台等を係止自在な係止手段を設けたことを特徴とする、請求項６又は７に記載の伸縮式踏み台等。 A locking means is provided for locking the second auxiliary step and the first auxiliary step when the second auxiliary step and the like are stacked on the first auxiliary step. The telescopic stepping board according to Item 6 or 7.
JP2011277877A 2011-12-20 2011-12-20 Extension type footstool or the like Pending JP2013129958A (en)

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