JP2020037810A - Inclined cable rope ladder - Google Patents
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Abstract
Description
本発明は、斜張式縄梯子に関するものである。 The present invention relates to a cable-stayed rope ladder.
従来、二階建て以上の建造物には、バルコニー等の高所から地上や下の階層への避難のために縄梯子の設置や、縄梯子を収納した格納ケースの設置が行われている。このような縄梯子は、一対の平行なロープ間に所定間隔で踏桟が設けられて形成されている。（例えば、特許文献１参照）。縄梯子は、一端を回転軸に固定し、不使用のときは回転軸に巻き付けた状態で保持されている。そして縄梯子を巻き付けた状態から開放することで、他端を落下させて鉛直方向に吊り下げて使用している。 2. Description of the Related Art Conventionally, in a building having two or more floors, a rope ladder is installed to evacuate from a high place such as a balcony to the ground or a lower level, and a storage case storing the rope ladder is installed. Such a rope ladder is formed by providing a step rail at a predetermined interval between a pair of parallel ropes. (For example, see Patent Document 1). The rope ladder has one end fixed to the rotating shaft, and is held while being wound around the rotating shaft when not in use. By releasing the rope ladder from the wound state, the other end is dropped and suspended in the vertical direction for use.
しかしながら、鉛直方向に吊り下げられた縄梯子を降りるとき、縄梯子には、その姿勢を鉛直方向から傾けるモーメントが作用してしまう。具体的には図４（ａ）に示すように縄梯子には、人が縄梯子を掴んで降りるとき縄梯子から距離Ｌ離間した位置（人の重心位置）で下向きの力Ｆが作用し、縄梯子を揺動させるモーメントが作用する。このモーメントにより図４（ｂ）に示すように、縄梯子を降りる人の足元で縄梯子が前方に揺動してしまうと、相対的に上半身が後方（背中側）に傾くので身体を支えるために腕や手にかかる負荷が大きくなる。そのため握力や腕の力が弱い子供や、お年寄りにとっては縄梯子に掴まることが非常に困難であった。更に上半身が後方に傾いた姿勢のままでは縄梯子を降りること自体が非常に困難であるという問題があった。 However, when descending the rope ladder suspended in the vertical direction, a moment acts on the rope ladder to tilt its posture from the vertical direction. Specifically, as shown in FIG. 4 (a), when a person grabs the rope ladder and descends, a downward force F acts on the rope ladder at a position L away from the rope ladder (the position of the center of gravity of the person), causing the rope ladder to swing. A moving moment acts. As shown in FIG. 4B, when the rope ladder swings forward at the feet of the person getting off the rope ladder due to this moment, the upper body relatively leans backward (back side). And the load on the hands increases. For this reason, it was very difficult for children with weak grip and arm strength and elderly people to grasp on a rope ladder. Furthermore, there is a problem that it is very difficult to get off the rope ladder itself when the upper body is inclined backward.
本発明は、上記問題点に鑑みて本発明者の鋭意研究により成されたものであり、簡易な構造によって、昇降時に身体にかかる負荷を抑え、容易で且つ安全に昇降を行うことができる斜張式縄梯子を提供することを目的とする。 The present invention has been made by the inventor of the present invention in view of the above-described problems, and has a simple structure that can reduce a load applied to a body at the time of ascending and descending, and can perform ascending and descending easily and safely. It is intended to provide a tension type rope ladder.
本発明の斜張式縄梯子は、縄梯子手段と、斜張手段とを具え、縄梯子手段が可撓性を有し所定間隔を存して配置される一対の長尺部材と、該一対の長尺部材間に架設される踏桟とを具え、垂設可能に構成され、斜張手段は、一端が上記長尺部材における適当な位置に連結され、他端が一端よりも上方に固定され、可撓性を有して長尺部材毎に設けられる支持部材を有し、縄梯子手段が斜張手段によって鉛直方向から傾斜させた状態で展張状態を保持可能に構成されることを特徴とする。 A cable-stayed rope ladder of the present invention includes a rope ladder means and a cable-stayed means, wherein the rope ladder means has flexibility and is arranged at a predetermined interval, and a pair of elongated members. And a step provided between the members, and is configured to be vertically erected. The cable staying means has one end connected to an appropriate position in the elongated member, and the other end fixed above the one end. It has a flexible supporting member provided for each of the long members, and the rope ladder means is configured to be able to hold the extended state in a state where the rope ladder means is inclined from the vertical direction by the slanting means.
また本発明の斜張式縄梯子は、踏桟が長尺部材の長手方向に沿って所定間隔を存して互いに平行に、長尺部材間に複数架設される段部材である。 Further, the cable stayed rope ladder of the present invention is a step member in which a plurality of steps are erected between the long members in parallel with each other at predetermined intervals along the longitudinal direction of the long members.
また本発明の斜張式縄梯子は、踏桟が長尺部材間で成る網目状の部材である。 The cable stayed rope ladder of the present invention is a mesh-like member in which the step is formed by long members.
また本発明の斜張式縄梯子は、縄梯子手段を格納可能な格納手段を有し、格納手段は、長尺部材の一端を固定する第一固定手段と、斜張手段の部材の他端を固定する第二固定手段とを有する。 Also, the cable stayed rope ladder of the present invention has storage means capable of storing the rope ladder means, the storage means fixing first end of the long member, and fixing the other end of the member of the cable stay means. And second fixing means.
また本発明の斜張式縄梯子は、斜張手段の支持部材が複数の長尺状の部材を有して成り、該長尺状の部材は、一端がそれぞれ異なる位置で長尺部材に連結される。 Further, in the cable stayed type rope ladder of the present invention, the support member of the cable staying means has a plurality of elongated members, and the elongated members are connected to the elongated member at one end at different positions. You.
本発明によれば、簡易な構造によって、昇降時に身体にかかる負荷を抑え、容易で且つ安全に昇降を行うことができる。 ADVANTAGE OF THE INVENTION According to this invention, the load applied to a body at the time of going up and down can be suppressed with a simple structure, and it can go up and down easily and safely.
以下に本発明の斜張式縄梯子としての斜張縄梯子の実施形態を、図面を参照して説明する。図１は展張した斜張縄梯子１を示す図である。斜張縄梯子１は、縄梯子手段としての梯子部１０と、斜張手段としての複数の斜張ロープ群２０によって構成され、斜張縄梯子１は箱状の収納部２の収納空間内に収納し得、且つ収納部２から垂下可能に固定される。 Hereinafter, an embodiment of a cable stayed rope ladder as a cable stayed rope ladder of the present invention will be described with reference to the drawings. FIG. 1 is a view showing an extended cable stayed rope ladder 1. The cable-stayed rope ladder 1 is composed of a ladder section 10 as rope ladder means and a plurality of cable-stayed rope groups 20 as cable staying means, and the cable-stayed rope ladder 1 can be stored in the storage space of the box-shaped storage section 2. And is fixed so as to be able to hang down from the storage section 2.
梯子部１０は、一対の縦縄１２ａ、１２ｂ（長尺部材）と、複数の踏桟１４（段部材）とを有して成る。縦縄１２ａ、１２ｂは、ロープ等の可撓性を有する長尺状の部材であって、縦縄１２ａ、１２ｂ間が所定間隔を存するように配列される。また縦縄１２ａ、１２ｂは、一端が収納部２内で固定される。踏桟１４は、例えば複数のロープ状の部材であり、各々が縦縄１２ａ、１２ｂに直交するように縦縄１２ａ、１２ｂ間に架設される。即ち踏桟１４は、縦縄１２ａ、１２ｂの長手方向に沿った配列方向で、所定間隔を存して複数設けられる。 The ladder portion 10 includes a pair of vertical ropes 12a and 12b (long members) and a plurality of step bars 14 (step members). The vertical ropes 12a and 12b are flexible and long members such as ropes, and are arranged so that the vertical ropes 12a and 12b have a predetermined interval. One end of each of the vertical ropes 12a and 12b is fixed in the storage unit 2. The step rail 14 is, for example, a plurality of rope-shaped members, and is installed between the vertical ropes 12a and 12b so as to be orthogonal to the vertical ropes 12a and 12b. That is, the plurality of treads 14 are provided at predetermined intervals in the arrangement direction along the longitudinal direction of the vertical ropes 12a and 12b.
斜張ロープ群２０は、長尺状であって可撓性を有する複数のロープ（又はケーブルでも良い）により構成される。また斜張ロープ群２０は、縦縄１２ａ、１２ｂ毎に設けられている。即ち一方の縦縄１２ａに連結される斜張ロープ群２０と、他方の縦縄１２ｂに連結される斜張ロープ群２０とが個々に設けられている。斜張ロープ群２０の各ロープは、一端が収納部２内で固定され、他端が縦縄１２ａ、１２ｂに連結される。 The cable stayed rope group 20 is constituted by a plurality of long and flexible ropes (or cables). The cable-stayed rope group 20 is provided for each of the vertical ropes 12a and 12b. That is, a cable stayed rope group 20 connected to one vertical rope 12a and a cable stayed rope group 20 connected to the other vertical rope 12b are individually provided. One end of each of the ropes of the cable-stayed rope group 20 is fixed in the storage section 2, and the other end is connected to the vertical ropes 12a and 12b.
斜張ロープ群２０の各ロープの他端の位置は、縦縄１２ａ、１２ｂにおいて異なる位置に設定する。例えば斜張ロープ群２０の各ロープの連結位置は、縦縄１２ａ、１２ｂの一端から他端にかけて等間隔に並ぶように設定する。 The position of the other end of each rope of the cable-stayed rope group 20 is set to a different position in the vertical ropes 12a and 12b. For example, the connecting positions of the ropes of the cable stayed rope group 20 are set so as to be arranged at equal intervals from one end to the other end of the vertical ropes 12a and 12b.
また当該ロープは、斜張縄梯子１を展張した際に、適度な張力で張られた状態となるように長さを設定する。更に各ロープの長さは、縦縄１２ａ、１２ｂに連結される位置が縦縄１２ａ、１２ｂの一端部に近い程、短くなるように設定する。また縦縄１２ａ、１２ｂの他端部の直近に連結されるロープの長さは、少なくとも縦縄１２ａ、１２ｂの長さ以下に設定する。 The length of the rope is set so that when the cable-stayed rope ladder 1 is extended, the rope is tensioned with an appropriate tension. Further, the length of each rope is set to be shorter as the position connected to the vertical ropes 12a, 12b is closer to one end of the vertical ropes 12a, 12b. The length of the rope connected to the other ends of the vertical ropes 12a and 12b is set to be at least the length of the vertical ropes 12a and 12b.
収納部２は、平面視矩形状を成し、下部を開放可能に閉塞した下部開口を覆う下蓋（不図示）、上部開口を覆う上蓋２ａ及び側面の全周を覆う側板２ｂによって構成される。なお下蓋は、上蓋の開口操作に連動して自動的に下部開口を開放する等のように構成してもよいが、特に限定するものではない。 The storage unit 2 has a rectangular shape in a plan view, and includes a lower lid (not shown) that covers a lower opening whose lower part is openably closed, an upper lid 2a that covers the upper opening, and a side plate 2b that covers the entire periphery of the side surface. . The lower lid may be configured to automatically open the lower opening in conjunction with the opening operation of the upper lid, but is not particularly limited.
また収納部２の上蓋２ｂは、蝶番等によって開閉可能に設けられる。更に収納部２内には、縦縄１２ａ、１２ｂの一端を固定する第一固定部４、斜張ロープ群２０の一端を固定する第二固定部６が形成される。収納部２の内部空間は、斜張縄梯子１を巻回した状態で収納可能な収納空間となっている。 The upper cover 2b of the storage section 2 is provided so as to be opened and closed by a hinge or the like. Further, a first fixing part 4 for fixing one end of the vertical ropes 12a and 12b and a second fixing part 6 for fixing one end of the cable stayed rope group 20 are formed in the storage part 2. The internal space of the storage section 2 is a storage space in which the cable stayed rope ladder 1 can be stored in a wound state.
第一固定部４は、内周面から突出する突起部であり、縦縄１２ａ、１２ｂ毎に設けられている。即ち第一固定部４は、収納部２内で所定間隔を存するように二箇所で設けられ、縦縄１２ａ、１２ｂの何れかが固定される。 The first fixing portion 4 is a protrusion projecting from the inner peripheral surface, and is provided for each of the vertical ropes 12a and 12b. That is, the first fixing portion 4 is provided at two places in the storage portion 2 so as to have a predetermined interval, and one of the vertical ropes 12a and 12b is fixed.
また第二固定部６は、内周面から突出する突起部であり、斜張ロープ群２０毎に設けられている。即ち第二固定部６は、収納部２内で所定間隔を存するように二箇所で設けられ、各々に斜張ロープ群２０が固定されるが、斜張ロープ群２０を斜張して固定できるものであればよく特に限定されない。 The second fixing portion 6 is a protrusion projecting from the inner peripheral surface, and is provided for each cable stayed rope group 20. That is, the second fixing portion 6 is provided at two locations in the storage portion 2 so as to have a predetermined interval, and the cable staying rope group 20 is fixed to each, but the cable staying rope group 20 can be cable-stayed and fixed. It is not particularly limited as long as it is a material.
なお、第一固定部４（又は第二固定部６）は、突起部に限定するものではなく、収納部２内の空間を横断するように両端部を内壁に固定した棒状部材であってもよく、棒状部材に縦縄１２ａ、１２ｂ（又は斜張ロープ群２０）を引っ掛けて固定してもよい。このように第一固定部４又は第二固定部６は、適宜設定し得るものである。 Note that the first fixing portion 4 (or the second fixing portion 6) is not limited to the protruding portion, and may be a rod-shaped member having both ends fixed to the inner wall so as to cross the space in the storage portion 2. Alternatively, the vertical ropes 12a and 12b (or the cable-stayed rope group 20) may be hooked and fixed to the rod-shaped member. Thus, the first fixing part 4 or the second fixing part 6 can be appropriately set.
また、第一固定部４と第二固定部６の設置位置は、適宜設定し得るものであるが、少なくとも梯子部１０が鉛直方向から傾斜するように斜張縄梯子１の前後方向に離間させ設置する。 The installation positions of the first fixing portion 4 and the second fixing portion 6 can be appropriately set. However, at least the ladder portion 10 is separated in the front-rear direction of the cable stayed rope ladder 1 so as to be inclined from the vertical direction. I do.
ここでは第一固定部４は、図１に示す対向する一対の側面の下側の角部に設置する。一方、第二固定部６は、当該一対の側面の第一固定部４の略対角上の上側角部に設置する。 Here, the first fixing portion 4 is installed at a lower corner portion of a pair of opposed side surfaces shown in FIG. On the other hand, the second fixing portion 6 is installed at an upper corner of the pair of side surfaces substantially diagonally opposite to the first fixing portion 4.
図２は斜張縄梯子１の収納状態から展張状態の過程を示す図であり、（ａ）は収納状態、（ｂ）は展張途中状態、（ｃ）は展張状態である。なお、図２においては簡便のため斜張ロープ群２０を直線的に示しているが、実際には各状態に応じ弛んでいることがあり得る。 2A and 2B are diagrams showing a process of the cable stayed rope ladder 1 from the stored state to the expanded state, wherein FIG. 2A shows the stored state, FIG. 2B shows the expanded state, and FIG. 2C shows the expanded state. Although the cable-stayed rope group 20 is shown linearly in FIG. 2 for simplicity, it may actually be loosened according to each state.
斜張縄梯子１は、図２（ａ）に示す梯子部１０及び斜張ロープ群２０を収納部２に収納した収納状態とする。ここでは梯子部１０をロール状に巻回しているだけであって特にバンドで結束したりはしていないがバンド（不図示）結束してもよい。またその場合バンドを収納部２の内壁面に連結させることで梯子部１０を収納部２内で保持することもできる。 The cable stayed rope ladder 1 is in a storage state in which the ladder portion 10 and the cable stayed rope group 20 shown in FIG. Here, the ladder portion 10 is merely wound in a roll shape and is not particularly bound with a band, but may be bound with a band (not shown). In this case, the ladder portion 10 can be held in the storage portion 2 by connecting the band to the inner wall surface of the storage portion 2.
斜張縄梯子１を使用する際には、収納部２の下蓋及び上蓋２ａを開放した上で、斜張縄梯子１を展張する。即ち、斜張縄梯子１は、展張するとき図２（ｂ）に示すように縦縄１２ａ、１２ｂの一端を中心に収納部２の下方に回動すると共に、梯子部１０が展張する。そして縦縄１２ａ、１２ｂが図２（ｃ）に示すように斜張ロープ群２０によって支持されながら展張して、斜張縄梯子１は展張状態となる。このとき斜張ロープ群２０の各ロープが張ることで、縦縄１２ａ、１２ｂは鉛直方向から傾斜した状態が維持される。 When using the cable-stayed rope ladder 1, the cable-stayed rope ladder 1 is extended after the lower lid and the upper lid 2a of the storage section 2 are opened. That is, when the cable-stayed rope ladder 1 is extended, as shown in FIG. 2B, the cable-stayed rope ladder 1 pivots about the ends of the vertical ropes 12a and 12b below the storage portion 2 and the ladder portion 10 is extended. Then, as shown in FIG. 2C, the vertical ropes 12a and 12b are extended while being supported by the cable-stayed rope group 20, and the cable-stayed rope ladder 1 is in an extended state. At this time, each rope of the cable-stayed rope group 20 is stretched, so that the vertical ropes 12a and 12b are maintained in a state inclined from the vertical direction.
従って縦縄１２ａ、１２ｂにモーメントが作用しても、斜張ロープ群２０がモーメントに抗して、結果縦縄１２ａ、１２ｂが斜張ロープ群２０から離れる方向に揺動するのを防止でき、結果傾斜した状態を維持することもできる。 Accordingly, even if a moment acts on the vertical ropes 12a, 12b, the cable stayed rope group 20 can prevent the vertical ropes 12a, 12b from swinging away from the cable stayed rope group 20 as a result, As a result, the inclined state can be maintained.
また、利用者にとっては斜張縄梯子１の揺動が抑制されているので、斜張縄梯子１を昇降し易くなる。更に斜張縄梯子１の傾斜状態が常に維持されることで、利用者にとっては昇降の際に掛かる腕や手への負荷が低減される。そのため腕や手の力が弱い利用者は、より安全に斜張縄梯子１の昇降を行うことができる。 Further, since the swing of the cable stayed rope ladder 1 is suppressed for the user, the cable stayed rope ladder 1 can be easily moved up and down. Further, since the inclined state of the cable stayed rope ladder 1 is always maintained, the load on the arm and hand that is applied to the user during the ascent and descent is reduced. Therefore, a user with weak arm and hand strength can move up and down the cable stayed rope ladder 1 more safely.
また、縦縄１２ａ、１２ｂの傾斜と同様にして踏桟１４の配列方向が鉛直方向から傾斜角を有する、即ち一般的な階段のように踏浅１４が配列されるので、利用者は、縦縄１２ａ、１２ｂ及び踏桟１４側を背にして斜張縄梯子１を降りることが容易となる。また踏桟１４が傾斜して配列された場合であって、縦縄１２ａ、１２ｂ及び踏桟１４側を背にして降りたときには足元の踏桟１４の位置を確認し易くなる。 In addition, in the same manner as the inclination of the vertical ropes 12a and 12b, the arrangement direction of the treads 14 has an inclination angle from the vertical direction, that is, the treads 14 are arranged like a general stair. It becomes easy to get down the cable stayed rope ladder 1 with the ropes 12a, 12b and the step 14 side as back. In addition, when the steps 14 are arranged in an inclined manner, the position of the steps 14 at the feet can be easily confirmed when the step 14 is descended with the vertical ropes 12a, 12b and the steps 14 side as back.
なお、踏桟１４は、ロープ状の部材として説明したが、これに限定されるものではなく、板状の部材であってもよい。また踏桟１４は横桟以外の形状、例えば図３に示すように、縦縄１２ａ、１２ｂ間でロープを網目形状に編むことで、隙間を介して足を踏み入れるロープ部分を踏桟１４としてもよい。また足を踏み入れ可能な網目形状で踏桟１４を形成すれば蹴上の高さが低くなるので、身体の小さい利用者にとって利便性が向上する。 The step 14 has been described as a rope-shaped member, but is not limited thereto, and may be a plate-shaped member. In addition, as the step 14, a rope portion into which a foot is stepped through a gap is formed as the step 14 by knitting a rope into a mesh shape between the vertical ropes 12 a and 12 b as shown in FIG. 3, for example, as shown in FIG. 3. Good. If the step 14 is formed in a mesh shape that allows the foot to be stepped on, the height of the rise is reduced, so that the convenience for a user with a small body is improved.
また、縦縄１２ａ、１２ｂ間で網目形状のロープを形成した場合、足を掛ける箇所及び手で掴む箇所が増えるので、このことからも利用者にとって利便性が向上する。また網目形状に構成したロープを配設すれば、利用者は寄りかかるようにロープに身体を預けることができるので、子供、高齢者、荷物等を抱えた人等の他に、犬猫等のペットであっても安全に斜張縄梯子１を降りることができる。 Further, in the case where a mesh-shaped rope is formed between the vertical ropes 12a and 12b, the number of places to be put on the feet and the places to be gripped by the hand increases, which also improves the convenience for the user. In addition, if a rope configured in a mesh shape is arranged, users can leave their bodies on the rope so that they can lean on them, and in addition to children, the elderly, people holding luggage, etc., pets such as dogs and cats Therefore, the cable stayed rope ladder 1 can be safely descended.
１…斜張縄梯子、２…収納部、２ａ…上蓋、２ｂ…側板、４…第一固定部、６…第二固定部、１０…梯子部、１２ａ，１２ｂ…縦縄、１４…踏桟、２０…斜張ロープ群。
DESCRIPTION OF SYMBOLS 1 ... Cable stayed rope ladder, 2 ... Storage part, 2a ... Top lid, 2b ... Side plate, 4 ... First fixing part, 6 ... Second fixing part, 10 ... Ladder part, 12a, 12b ... Vertical rope, 14 ... Stepping rail, 20 ... cable-stayed rope group.
Claims (5)
上記縄梯子手段は、
可撓性を有し所定間隔を存して配置される一対の長尺部材と、該一対の長尺部材間に架設される踏桟とを具え、垂設可能に構成され、
上記斜張手段は、
一端が上記長尺部材における適当な位置に連結され、他端が上記一端よりも上方に固定され、可撓性を有して上記長尺部材毎に設けられる支持部材を有し、
上記縄梯子手段が上記斜張手段によって鉛直方向から傾斜させた状態で展張状態を保持可能に構成されることを特徴とする斜張式縄梯子。 With rope ladder means and cable staying means,
The above rope ladder means,
It comprises a pair of long members having flexibility and arranged at predetermined intervals, and a step provided between the pair of long members, and is configured to be vertically erected,
The cable stay means is
One end is connected to an appropriate position in the elongate member, the other end is fixed above the one end, and has a flexible supporting member provided for each elongate member,
A cable-stayed rope ladder, wherein the rope ladder means is configured to be able to hold an extended state in a state of being inclined from a vertical direction by the cable-staying means.
上記格納手段は、前記長尺部材の一端を固定する第一固定手段と、前記斜張手段の部材の他端を固定する第二固定手段とを有することを特徴とする請求項１乃至３の何れかに記載の斜張式縄梯子。 Having storage means capable of storing the rope ladder means,
4. The storage device according to claim 1, wherein the storage means includes first fixing means for fixing one end of the elongated member, and second fixing means for fixing the other end of the member of the cable staying means. The cable-stayed rope ladder according to any of the above.
該長尺状の部材は、一端がそれぞれ異なる位置で前記長尺部材に連結されることを特徴とする請求項１乃至４の何れかに記載の斜張式縄梯子。
The support member of the cable staying means has a plurality of elongated members,
The cable-stayed rope ladder according to any one of claims 1 to 4, wherein the elongated member has one end connected to the elongated member at a different position.
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