JPS62260985A - Ladder for fire extinguishment - Google Patents
Ladder for fire extinguishmentInfo
- Publication number
- JPS62260985A JPS62260985A JP62100211A JP10021187A JPS62260985A JP S62260985 A JPS62260985 A JP S62260985A JP 62100211 A JP62100211 A JP 62100211A JP 10021187 A JP10021187 A JP 10021187A JP S62260985 A JPS62260985 A JP S62260985A
- Authority
- JP
- Japan
- Prior art keywords
- ladder
- ladder device
- leg
- profile
- welded
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000004804 winding Methods 0.000 claims description 11
- 238000003466 welding Methods 0.000 claims description 5
- 210000002414 leg Anatomy 0.000 description 17
- 238000005452 bending Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 208000010392 Bone Fractures Diseases 0.000 description 1
- 206010017076 Fracture Diseases 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C5/00—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles
- E06C5/02—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members
- E06C5/04—Ladders characterised by being mounted on undercarriages or vehicles Securing ladders on vehicles with rigid longitudinal members capable of being elevated or extended ; Fastening means during transport, e.g. mechanical, hydraulic
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は特許請求の範囲第１項の大概念に記載されてい
る引伸し可能梯子部分を備えた梯子装置、特に消防用梯
子に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ladder device, in particular a firefighting ladder, with an extendable ladder section as defined in the general concept of claim 1.
（従来の技術）
引伸し可能梯子部分を備えた周知の消防用梯子、すなわ
ちその梯子縦材が下弦材および上弦材を有し、該弦月が
相互に筋かいによって堅く結合されている梯子装置にお
いては、その下弦材および上弦材は大きな捩り−および
曲げ強度が得られるような輪郭を右している。このよう
にするためには多重溝および多重曲縁を有する、輪郭の
複雑な縦材が使用される。このような縦材はなおたとえ
ばドイツ特許２８ ４４ ４３９に記載されているよう
な筋かいおよび四角管の如ぎ追加型材によって補強され
る。種々の梯子部材はその製作費が大であり、特許その
曲縁−および溝区域に腐食が生じ易く、溶接器具、塗装
器具等を使用する時にその近接性が制限される。なお密
封装置は大ぎな困難を発生せしめ、特に縦材が断面で見
て巻成溝および開放翼端部を有する場合は然りである（
ドイツ特許公開公報３３ ２６ ６４４）。縦材の摺動
路および走行路の応力が大なる時には筋かいの間に塑性
変形の生じることを計蓮に入れねばならぬ。その理由は
縦材の開放されたまたは突出した翼端部が比較的不安定
であるためである。なお頭部ローラは各梯子部分の間に
おいて縦材の下方走行路に曲げ応力を発生させる場合が
ある。ドイツ特許公開公報３３ ２６ ６４４に記載さ
れている梯子部分の側方案内に対するスライダは比較的
大きな摺動面を有し、したがって作業中に＃１月の摺動
面部分が汚染され、かつ梯子装置の外観の損なわれるお
それがある。PRIOR ART In the known firefighting ladder with an extensible ladder section, i.e. the ladder device, the ladder stringers of which have a bottom chord and a top chord, the chords being rigidly connected to each other by braces. The lower and upper chords are contoured to provide high torsional and bending strength. To do this, longitudinal members with complex profiles are used, which have multiple grooves and multiple curved edges. Such longitudinal members can also be reinforced by additional profiles, such as braces and square tubes, as described, for example, in German Patent 28 44 439. The various ladder members are expensive to manufacture, are susceptible to corrosion in their curved edges and groove areas, and limit their accessibility when using welding equipment, painting equipment, etc. It should be noted that sealing devices can present great difficulties, especially when the longitudinal members have winding grooves and open wing tips in cross section.
German Patent Application 33 26 644). It must be taken into consideration that plastic deformation will occur between the braces when the stress in the sliding path and running path of the longitudinal members is large. The reason for this is that open or protruding wing tips of the stringers are relatively unstable. It should be noted that the head rollers may create bending stresses in the downward run of the stringers between each ladder section. The slider for the lateral guidance of the ladder section described in DE 33 26 644 has a relatively large sliding surface, so that during operation the sliding surface section #1 becomes contaminated and the ladder device The appearance of the product may be damaged.
（発明が解決しようとする問題点）
本発明の目的はドイツ特許公開公報３３２６６４４に記
載されている周知の梯子装置の改良に関し、特に前記の
型の梯子装置にして、その下弦材が機能的および形態的
に簡単であり、かつ梯子縦材がｌ！Ｗｉな構造によって
交番荷重および腐食応力に耐えるようになった梯子装置
を供することである。The object of the invention is to improve the known ladder device described in German Patent Application No. 33 26 644, and in particular to provide a ladder device of the type mentioned above, the lower chord of which has a functional and It is simple in form, and the vertical members of the ladder are l! The object of the present invention is to provide a ladder device that can withstand alternating loads and corrosive stress due to its unique structure.
（問題点を解決するための手段）
本発明の目的は特許請求の範囲第１項の特徴部分に記載
されている手段によって達成される。(Means for solving the problems) The object of the present invention is achieved by the means described in the characterizing part of claim 1.
本発明はざらに従属特許請求の範囲第２項から第１０項
までに記載されている特徴によって改良することが望ま
しい。It is advantageous to refine the invention by the features set out in the subclaims 2 to 10.
したがって本発明の本質的な特徴は梯子縦材にして、断
面で見て全体が閉鎖された体部よりなり、該休部が少な
くとも三つの中空空洞を有する縦材を描えていることで
ある。破壊の危険に最も曝されやすい高応力縁部分はド
イツ特許公開公報３３２６ ６４４に記載されているよ
うな突出翼によっては吸収されず、型材によって形成さ
れた外部中空体、すなわち縁応力を具合良く配分し得る
中空体突起によって吸収される。外部空洞によって梯子
は水平および垂直方向の応力に対して大きな曲げ強度を
有するようになる。内方型材はその上方中空体突起によ
って、内方梯子部分から侵方スライダを通して上方に伝
えられる力を吸収する。An essential feature of the invention is therefore that the ladder stringer consists of a completely closed body in cross section, the rest delineating a stringer having at least three hollow cavities. The highly stressed edge parts, which are most exposed to the risk of fracture, are not absorbed by protruding wings as described in German Patent Application 3326 644, but by an external hollow body formed by the profile, i.e. for a better distribution of the edge stresses. It is absorbed by hollow body protrusions that can be absorbed. The external cavity provides the ladder with high bending strength against horizontal and vertical stresses. By means of its upper hollow body protrusion, the inner profile absorbs the forces transmitted upwardly from the inner ladder section through the invasive slider.
この時＊ ２中空体突起は筋かいおよび外方型材によっ
て支持される。前記内方型材はざらに垂直および水平方
向において前記内方梯子部分に対する摺動面および力受
けとして働く。前記中空体突起は水平応力が生じた時に
座屈を発生させることなく、剪断応力を吸収すると言う
重要な働きを有している。さらに踏み子の溶接を具合良
く行うことができる。下弦材および縦材は実質的に３個
の部材、すなわち端部中空体突起を有する内方型材、外
方突起または巻成溝を有する外方型材および梯子部分の
引込みと引伸しを行う時に走行面として役立つ下方型材
よりなっている。前述の３個の部材はそれぞれ荷重に応
じてその壁厚を最適となるように予め計算し、合理的な
軽ａｍ造が安価に得られるようになすことができる。梯
子縦材の応力の大なる個所においては、さらに補強を行
なうことにより、または縦材に型材を使用することによ
り、走行面を塑性変形に対して保護すると共に縦材内の
抵抗モーメントを大となすことができる。At this time, the *2 hollow body protrusion is supported by the bracing and outer profile. The inner profile serves as a sliding surface and a force receiver for the inner ladder section in roughly vertical and horizontal directions. The hollow protrusion has the important function of absorbing shear stress without causing buckling when horizontal stress occurs. Furthermore, the stepper can be welded smoothly. The lower chord and longitudinal members are essentially three parts: the inner profile with the hollow end projection, the outer profile with the outer protrusion or winding groove, and the running surface when drawing in and stretching the ladder section. It consists of a lower section that serves as a The wall thicknesses of the aforementioned three members can be pre-calculated to be optimal depending on the load, so that a reasonable light AM structure can be obtained at low cost. In areas where the ladder vertical members are subject to high stress, further reinforcement or the use of profiles in the vertical members can protect the running surface from plastic deformation and increase the moment of resistance within the vertical members. It can be done.
側方案内に対する前方慴動部材は内方型材に対し調部自
在に、かつ前方に向って取はずし得るように堅く装架さ
れる。このｌ！！動部材は内方梯子部分に対する側方案
内より小さな支持面を有し、かつ梯子を立てる時または
橋として使用する時に、垂直方向における力受けとして
鋤く。The front sliding member for the lateral guide is rigidly mounted to the inner profile in such a way that it can be freely adjusted and removed in the forward direction. This l! ! The movable member has a smaller support surface than the lateral guide for the inner ladder part and serves as a force receiver in the vertical direction when the ladder is erected or used as a bridge.
したがって本発明によれば、曲げ強さの等しい担持部材
を有する、軽Ｍの梯子が得られる。外観を損なうことな
く、縦材の内部において応力の大なる個所を補強するこ
とができる。型材を製造する場合も、個々の部材の異な
る壁厚に対して同じ工具を使用することができる。さら
に梯子部分の各縦材の段階を最適となすことができる。According to the invention, therefore, a light M ladder is obtained which has supporting members of equal bending strength. It is possible to reinforce areas of high stress inside the vertical members without damaging the appearance. When producing profiles, the same tool can also be used for different wall thicknesses of the individual parts. Furthermore, the steps of each vertical member of the ladder portion can be optimized.
縦材の溶接を厚くし得るから腐食も著しく少なくなる。Since the welds on the longitudinal members can be made thicker, corrosion is significantly reduced.
特に外方溶接はロボット作業を行うに適している。External welding is especially suitable for robot work.
次に添付図面によって本発明の詳細な説明する。The present invention will now be described in detail with reference to the accompanying drawings.
（実施例）
第１図には消防用梯子装置１の水平踏み子７を有する４
個の梯子部分２が示されている。各梯子部分２は入れ子
式に伸長し得るようになっている。(Example) FIG.
Ladder sections 2 are shown. Each ladder section 2 is telescopically extendable.
各梯子部分２は所面で見て実質的に同様に形成され、左
右の上弦材５と左右の下弦材４とを有し、関連する下弦
材および上弦材は筋かい６によって相互に結合されてい
る。この場合水平踏み子７は関連する下弦材に溶接され
る。Each ladder section 2 is substantially similarly formed in some respects and has left and right upper chords 5 and left and right lower chords 4, the associated lower and upper chords being interconnected by braces 6. ing. In this case, the horizontal step 7 is welded to the associated lower chord.
梯子部分２の各上弦材５は下方に延びる翼３０を備えた
偏心四角管２９′よりなり、前記製の外側は筋かい６を
固定する時に役立つ。前記四角管２９の上側および下側
はエレベータ−（図示せず）に対する転勤路または摺動
路として使用される。Each upper chord 5 of the ladder section 2 consists of an eccentric square tube 29' with downwardly extending wings 30, the outer side of which serves in fixing the braces 6. The upper and lower sides of the square tube 29 are used as a transfer path or a sliding path for an elevator (not shown).
上弦材５と同様に、梯子部分の各下弦材４は寸法は異る
が、輪郭は同じである。各下弦材４または縦方向に延び
る梯子縦材は第２図から第４図までに詳細に示されてい
る如く、少なくとも３個の相互に溶接された部材、すな
わち次に示す如くき部材を有しているニ
ー内方に位置する型材１１にして、水平脚１２および垂
直脚１３を有し、その自由端が上向きの第１中空体突起
８および内向きの第２中空体突起９として形成されてい
る型材、−外方に位置する型材１４にして、水平脚１５
を有し、この脚が第２中空体突起９の区域において内方
型材１１に溶接さ、れ、この時第２中空体突起９が外方
型材１４の水平脚１５より高く位置するようにされ、さ
らに外向きの巻成溝１７を有する脚１６を備えている型
材、−下方に位置する型材１８にして、平らな、すなわ
ら前記の如き巻成溝を有しない垂直脚１９を備え、この
脚が内方型材１１の根元の下側に溶接されている型材。Like the upper chords 5, each lower chord 4 of the ladder section has different dimensions but the same outline. Each bottom chord 4 or longitudinally extending ladder stringer has at least three mutually welded members, as shown in detail in FIGS. 2 to 4, as follows: The profile member 11 is located inside the knee, and has a horizontal leg 12 and a vertical leg 13, the free ends of which are formed as a first hollow body protrusion 8 facing upward and a second hollow body protrusion 9 facing inward. - the outer profile 14 and the horizontal leg 15
and this leg is welded to the inner profile 11 in the area of the second hollow body projection 9, such that the second hollow body projection 9 is located higher than the horizontal leg 15 of the outer profile 14. , further comprising a leg 16 with an outward winding groove 17; - a lower profile 18 with a vertical leg 19 which is flat, i.e. without a winding groove as described above; This leg is welded to the lower side of the root of the inner section 11.
さらに下方型材１８は水平下向きの、同様に平らな脚２
０を有し、この脚の自由端は外方型材１４の垂直脚１６
の下方自由端に溶接され、縦材の中に主体部−空洞１０
を形成するようになっている。Furthermore, the lower profile 18 has a horizontally downwardly directed, likewise flat leg 2.
0 and the free end of this leg is the vertical leg 16 of the outer profile 14.
Welded to the lower free end of the main body-cavity 10 in the longitudinal member
It is designed to form a
各梯子部分２の前方摺動部材２５は第１図の左方に示さ
れ、かつ第２図においてはその詳梱が拡大して示されて
いる。この部材は内方型材１１の第２中空体突起９に固
定されるが、該型材に対して調節可能に装架され、かつ
梯子部分から前方に取外すことができる。前記摺動部材
は内方梯子部分の付随巻成溝１７に対する比較的小さな
接触面２８を形成し、作動中実際的に側方縦材が汚染さ
れないようにし、したがって各梯子部分２の光学的外観
を良（するようになっている。The front sliding member 25 of each ladder section 2 is shown on the left side of FIG. 1, and its detail is shown on an enlarged scale in FIG. This member is fixed to the second hollow body projection 9 of the inner profile 11, but is adjustably mounted to the profile and can be removed forwardly from the ladder section. Said sliding member forms a relatively small contact surface 28 for the associated winding groove 17 of the inner ladder section, which practically avoids contamination of the lateral stringers during operation and thus improves the optical appearance of each ladder section 2. It is supposed to be good.
各梯子部分２の後方ｌｌＩ？動部材２６は第１図のも方
に示されており、かつ第３図にはその詳細が拡大して示
されている。最初に述べた前方摺動部材２５は各梯子部
分の側方を案内するものであるが、後で述べた漬方摺動
部材２６は垂直案内を行うためのものであり、断面で見
て寸法が大であり、かつ前方摺動部材とは異なり内方型
材１１に対してではなく、外方型材１４の巻成？１ｉ１
７に調整自在に固定されている。したがって作業時には
この摺動部材２６は外方梯子部分の隣接内方型材１１に
対して摺動する。前記摺動部材２６はこれを緩めれば梯
子部分から後方に向って取外すことができる。Rearward llI of each ladder section 2? The moving member 26 is shown on the side of FIG. 1, and its details are shown on an enlarged scale in FIG. The first-mentioned front sliding member 25 is for lateral guidance of each ladder section, but the later-mentioned dip sliding member 26 is for vertical guidance, and its dimensions are is large, and unlike the front sliding member, is the winding of the outer profile 14 rather than the inner profile 11? 1i1
It is fixed and adjustable at 7. During operation, this sliding member 26 therefore slides against the adjacent inner profile 11 of the outer ladder section. The sliding member 26 can be removed rearward from the ladder section by loosening it.
さらに第３図に示される如く、最内方梯子部分２の内方
型材１１の第１中空体突起８は内方ケーブル２１に対す
る受入空洞として形成され、したがってこの空洞はケー
ブルの損傷を保護する働きを有している。Furthermore, as shown in FIG. 3, the first hollow body protrusion 8 of the inner profile 11 of the innermost ladder section 2 is formed as a receiving cavity for the inner cable 21, which cavity therefore serves to protect the cable from damage. have.
各梯子部分２は第３図において破線によって示された頂
部ロー５２４の上を走行する。この場合下方型材１８の
平らな水平ｎ２０の下側は前記頭部ローラ２４に対する
支持面または走行面となる。Each ladder section 2 runs over a top row 524, indicated by dashed lines in FIG. In this case, the lower side of the flat horizontal n20 of the lower profile 18 serves as a support surface or a running surface for the head roller 24.
下弦材４および梯子縦材をさらに補強するために、前記
主空洞１０の中に平らな脚を有する別の ４゜型材２２
を受入可能に溶接し、追加的に部分空洞を形成すると共
に前記巻成溝１７を橋絡するようになすことができる。In order to further strengthen the lower chord 4 and the ladder stringers, another 4° profile 22 with a flat leg inside said main cavity 10
can be acceptably welded, additionally forming a partial cavity and bridging said winding groove 17.
この場合前記別の型材２２の垂直脚２３は下方型材１８
の水平脚２０に、安定した状態で衝当し、後で述べたｌ
ｌｌｌＩ２０を追加的に補°強し、その下側を関連頭部
ローラ２４に対する走行面として役立てることができる
。縦村内における前記別の型材２２の配置と、各構成部
材の組立とは特に第４図に示されている。この図におい
ては個々の部材をモジュール式に組立てて梯子を完成す
る態様が端面因および透視図によって示されている。特
に重要なことは溶接ビード３１が縦材の上方区域に形成
され、したがって梯子部分が溶接の収縮経過において所
要の曲がりを保持し、したがって調整作業が不要となる
ことである。筋かい６の間において第２中空体突起９に
対し縦方向に仮溶接２７が行われ、応力が大となった時
に該第２中空体突起９が偏倚するのを阻止するようにな
っている。In this case, the vertical leg 23 of the further profile 22 is connected to the lower profile 18.
hit the horizontal leg 20 of the
IllI 20 can be additionally reinforced and its underside can serve as a running surface for the associated head roller 24. The arrangement of the further sections 22 in the longitudinal section and the assembly of the various components are shown in particular in FIG. In this figure, the modular assembly of the individual members to complete the ladder is shown in side view and perspective view. It is of particular importance that the weld bead 31 is formed in the upper region of the stringer, so that the ladder section retains the required bending during the contraction process of the welding, so that no adjustment work is necessary. Temporary welding 27 is performed in the longitudinal direction on the second hollow body protrusion 9 between the braces 6 to prevent the second hollow body protrusion 9 from deflecting when stress becomes large. .
第１図は４個の梯子部分を有する消防用梯子の右後左半
部分おＪ：び左１１η方半部分の線図的正面図、第２図
は第１図゛に示された梯子の左半部分の詳細図、第３図
は第１図に示された梯子の右手部分の詳細図、第４図は
梯子部分の構成部材を分離して示した透視的正面図。
１・・・梯子装置、２・・・梯子部分、４・・・下弦材
、５・・・上弦材、６・・・筋かい、８．９．１０・・
・中空空洞、１１・・・型材、１２．１３・・・脚、１
４・・・型材、１５゜１６・・・脚、１７・・・巻成溝
、１８・・・型材、１９，２０・・・脚、２１・・・ケ
ーブル、２４・・・頭部ローラ。Figure 1 is a diagrammatic front view of the right rear left half part and the left 11η half part of a firefighting ladder having four ladder parts, and Figure 2 is a schematic front view of the ladder shown in Figure 1. FIG. 3 is a detailed view of the left half portion of the ladder; FIG. 3 is a detailed view of the right hand portion of the ladder shown in FIG. 1; and FIG. 4 is a perspective front view showing the constituent members of the ladder portion separated. 1... Ladder device, 2... Ladder part, 4... Lower chord material, 5... Upper chord material, 6... Bracing, 8.9.10...
・Hollow cavity, 11... Shape material, 12.13... Leg, 1
4... Shape material, 15° 16... Leg, 17... Winding groove, 18... Shape material, 19, 20... Leg, 21... Cable, 24... Head roller.
Claims (1)
）、特に消防用梯子にして、各梯子部分（２）が下弦材
（４）および上弦材（５）を有し、該弦材が筋かい（６
）によって相互に結合されている梯子装置において、断
面で見て全体の中に、少なくとも三つの空洞（８、９、
１０）を有する閉鎖体として形成された下弦材（４）が
次の如き三つの相互に溶接された部材、すなわち −水平脚（１２）および垂直脚（１３）を有する内方型
材（１１）にして、その自由端が上向きの第１中空体突
起（８）および内向きの第２中空体突起（９）として形
成された内方型材と、 −水平脚（１５）を有する外方型材（１４）にして、該
脚が第２中空体突起（９）の区域において、前記内方型
材（１１）に溶接され、この時前記第２中空体突起（９
）が外方型材（１４）の水平脚（１５）より高く位置す
るようになっており、かつ巻成溝（１７）を備えた垂直
脚（１６）を有する外方型材と、 −平らな垂直脚（１９）を有する下方型材（１８）にし
て、該脚が内方型材（１１）の根元の区域においてその
下側に溶接され、さらに水平外向きの平らな脚（２０）
を有し、該脚の自由端が前記外方型材（１４）の垂直脚 （１６）の下方自由端に溶接され、下弦材 （４）の中に主体部−空洞を形成するようになっている
下方型材と を有することを特徴とする梯子装置。 （２）特許請求の範囲第１項記載の梯子装置において、
内方型材（１１）の第１および（または）第２中空体突
起（８、９）がケーブル（２１）に対する受入れ室とし
て形成されている梯子装置。 （３）特許請求の範囲第１項または第２項記載の梯子装
置において、下弦材（４）が少なくとも別の溶接された
内方型材（２２）によって補強され、その平らな垂直脚
（２３）が巻成溝（１７）に股がり、かつ下側において
下方型材（１８）の水平脚（２０）に隣接している梯子
装置。 （４）特許請求の範囲第１項から第３項までの何れか一
項に記載の梯子装置において、下方型材（１８）の水平
脚（２０）の下側が頭部ローラ（２４）の支持面として
形成され、前記ローラがその下の梯子部分（２）の上に
回転自在に配置されている梯子装置。 （５）特許請求の範囲第１項から第４項までの何れか一
項に記載の梯子装置において、水平踏み子（７）が下弦
材（４）の間において、内方型材（１１）の第１突起（
８）を含む水平脚（１２）の下側に溶接されている梯子
装置。 （６）特許請求の範囲第１項から第５項までの何れか一
項に記載の梯子装置において、下弦材（４）と上弦材（
５）との間に筋かい（６）が設けられ、該筋かいが下側
において内方型材（１１）の第２突起（９）を含む垂直
脚（１３）の垂直外面に溶接されている梯子装置。 （７）特許請求の範囲第１項から第６項までの何れか一
項に記載の梯子装置において、内方型材（１１）が水平
および垂直方向において、前記内方梯子部分（２）に対
する摺動面および力受け部材として形成されている梯子
装置。 （８）特許請求の範囲第１項から第７項までの何れか一
項に記載の梯子装置において、梯子部分（２）の前方区
域、内方型材（１１）に堅く装架された調節自在の、前
方に向って取外し得る摺動部材（２５）にして、前記内
方梯子部分（２）を横方向に案内するための小さな横支
持面（２８）と、該梯子部分（２）の上向きの力作用に
対する大きな支持面とを有する摺動部材が設けられてい
る梯子装置。 （９）特許請求の範囲第１項から第８項までの何れか一
項に記載の梯子装置において、梯子部分（２）の後方区
域において、巻成溝（１７）に堅く装架された調節自在
の、後方に取外し得る摺動部材（２６）にして、外方梯
子部分（２）内における垂直および水平案内を行なうた
めの摺動部材が設けられている梯子装置。 （１０）特許請求の範囲第１項から第９項までの何れか
一項に記載の梯子装置において、第１および（または）
第２中空体突起（８、９）が隣接する踏み子（７）の間
の区域および隣接する筋かい（６）の間の区域において
単数または複数の仮溶接個所（２７）を有している梯子
装置。[Scope of Claims] (1) A ladder device (1) having an extendable ladder portion (2)
), in particular for firefighting ladders, each ladder section (2) having a bottom chord (4) and a top chord (5), the chords having a bracing (6).
), in which there are at least three cavities (8, 9,
The lower chord (4) formed as a closure with 10) is formed into an inner profile (11) with three mutually welded parts, namely: - a horizontal leg (12) and a vertical leg (13); an inner profile whose free ends are formed as a first hollow body protrusion (8) pointing upward and a second hollow body protrusion (9) pointing inward; - an outer profile (14) having horizontal legs (15); ), the leg is welded to the inner profile (11) in the area of the second hollow body projection (9), and then the leg is welded to the inner profile (11) in the area of the second hollow body projection (9).
) is located higher than the horizontal leg (15) of the outer profile (14) and has a vertical leg (16) with a winding groove (17); - a flat vertical A lower profile (18) with legs (19), which are welded to the underside of the inner profile (11) in the region of its root, and further horizontally outwardly directed flat legs (20).
, the free end of said leg being welded to the lower free end of the vertical leg (16) of said outer profile (14) to form a body-cavity in the lower chord (4). A ladder device characterized in that it has a lower profile member. (2) In the ladder device according to claim 1,
Ladder device, in which the first and/or second hollow body projections (8, 9) of the inner profile (11) are formed as receiving chambers for the cable (21). (3) A ladder device according to claim 1 or 2, in which the lower chord (4) is reinforced by at least another welded inner profile (22) and its flat vertical leg (23) a ladder device which spans the winding groove (17) and adjoins the horizontal leg (20) of the lower profile (18) on its lower side. (4) In the ladder device according to any one of claims 1 to 3, the lower side of the horizontal leg (20) of the lower profile (18) is the support surface of the head roller (24). A ladder device formed as a ladder device, wherein said roller is rotatably arranged on a ladder section (2) below it. (5) In the ladder device according to any one of claims 1 to 4, the horizontal treadle (7) is positioned between the lower chord members (4) and the inner profile member (11). The first protrusion (
8) A ladder device welded to the underside of the horizontal leg (12). (6) In the ladder device according to any one of claims 1 to 5, the lower chord member (4) and the upper chord member (
A bracing (6) is provided between the vertical leg (13) and the vertical leg (13), which is welded on the underside to the vertical outer surface of the vertical leg (13) containing the second projection (9) of the inner profile (11). ladder device. (7) In the ladder device according to any one of claims 1 to 6, the inner profile member (11) is provided with a sliding surface in the horizontal and vertical directions relative to the inner ladder portion (2). A ladder device configured as a moving surface and a force receiving member. (8) A ladder device according to any one of claims 1 to 7, in which the front section of the ladder part (2) is rigidly mounted on the inner profile (11). a small lateral support surface (28) for laterally guiding said inner ladder part (2) with a forwardly removable sliding member (25) of said ladder part (2); A ladder device provided with a sliding member having a large support surface for the action of forces. (9) A ladder device according to any one of claims 1 to 8, in which the adjustment is rigidly mounted in the winding groove (17) in the rear region of the ladder part (2). Ladder device, which is provided with a freely removable sliding member (26) for vertical and horizontal guidance in the outer ladder part (2). (10) In the ladder device according to any one of claims 1 to 9, the first and/or
The second hollow body projections (8, 9) have one or more temporary welding points (27) in the area between adjacent steps (7) and in the area between adjacent braces (6). ladder device.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3614266 | 1986-04-26 | ||
| DE3614266.2 | 1986-04-26 | ||
| DE3625298.0 | 1986-07-25 | ||
| DE19863625298 DE3625298A1 (en) | 1986-04-26 | 1986-07-25 | LADDER ARRANGEMENT WITH EXTENDABLE LADDER PARTS, ESPECIALLY FIREFIGHTER LADDERS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62260985A true JPS62260985A (en) | 1987-11-13 |
| JPH07103761B2 JPH07103761B2 (en) | 1995-11-08 |
Family
ID=25843275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62100211A Expired - Lifetime JPH07103761B2 (en) | 1986-04-26 | 1987-04-24 | Fire ladder |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0244668B1 (en) |
| JP (1) | JPH07103761B2 (en) |
| DE (2) | DE3625298A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011038297A (en) * | 2009-08-10 | 2011-02-24 | Naka Corp | Evacuation equipment |
| KR20220133447A (en) * | 2021-03-25 | 2022-10-05 | 주식회사 에이치알이앤아이 | Boom of the ladder unit |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3901687A1 (en) * | 1989-01-21 | 1990-07-26 | Boecker Albert Gmbh & Co Kg | TELESCOPICABLE GUIDE RAILS FOR SLOPE OR SCAFFOLDING ELEVATORS |
| DE19738886A1 (en) * | 1997-09-05 | 1999-03-11 | Iveco Magirus | Ladder set for fire ladders |
| WO2002066778A1 (en) * | 2001-02-22 | 2002-08-29 | Jose Rene Asid Gaytan | Portable, collapsible mini-ladder |
| JP4504781B2 (en) * | 2004-10-22 | 2010-07-14 | 株式会社モリタホールディングス | Fire fighting ladder |
| EP2226610A1 (en) | 2009-03-06 | 2010-09-08 | Leica Geosystems AG | Geodesic measuring system and method for identifying a target unit with a geodesic measuring device |
| FR3024489B1 (en) * | 2014-07-29 | 2018-08-10 | Gimaex International | TELESCOPIC SCALE COMPRISING SCALE TRONCONS OF DIFFERENT DENSITY |
| CN105525861A (en) * | 2014-09-28 | 2016-04-27 | 徐州重型机械有限公司 | Scaling ladder engineering machinery and ladder assembly of scaling ladder engineering machinery |
| US9579530B2 (en) | 2014-11-24 | 2017-02-28 | Oshkosh Corporation | Ladder assembly for a fire apparatus |
| US9677334B2 (en) | 2014-11-24 | 2017-06-13 | Oshkosh Corporation | Aerial ladder for a fire apparatus |
| US9492695B2 (en) | 2014-11-24 | 2016-11-15 | Oshkosh Corporation | Pedestal and torque box assembly for a fire apparatus |
| US9580962B2 (en) | 2014-11-24 | 2017-02-28 | Oshkosh Corporation | Outrigger assembly for a fire apparatus |
| US9504863B2 (en) | 2014-11-24 | 2016-11-29 | Oshkosh Corporation | Quint configuration fire apparatus |
| CN104653095B (en) * | 2015-01-23 | 2017-05-24 | 徐毓艺 | Upright serially-connected high-voltage line maintaining ladder |
| CN105019816B8 (en) * | 2015-01-23 | 2017-07-18 | 徐毓艺 | Power equipment maintaining ladder |
| CN104747067B (en) * | 2015-02-24 | 2017-05-17 | 湖南瑭桥科技发展有限公司 | Firefighting vertical ladder |
| US10286239B2 (en) | 2017-02-08 | 2019-05-14 | Oshkosh Corporation | Fire apparatus piercing tip ranging and alignment system |
| CN108194019B (en) * | 2017-12-28 | 2019-03-15 | 湖北宇瑞建筑工程有限公司 | A kind of Construction Safety folding ladder |
| CN108194017B (en) * | 2018-01-10 | 2019-05-24 | 山东翔晟电力工程有限公司 | A kind of combined multifunctional electric power overhaul device |
| US10472889B1 (en) | 2018-04-23 | 2019-11-12 | Oshkosh Corporation | Aerial ladder assembly |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB654321A (en) * | 1948-10-11 | 1951-06-13 | Gravity Ladders Ltd | Improvements in or relating to ladders |
| DE884283C (en) * | 1949-08-20 | 1953-07-27 | Kloeckner Humboldt Deutz Ag | Extendable fire ladder with metal profile bars |
| DE1136577B (en) * | 1954-01-29 | 1962-09-13 | Kloeckner Humboldt Deutz Ag | Extendable ladder, especially fire ladder |
| GB773284A (en) * | 1955-08-22 | 1957-04-24 | Asbrink & Co Aktiebolag | Improvements in ladders |
| DE3326644A1 (en) * | 1983-07-23 | 1985-01-31 | Iveco Magirus AG, 7900 Ulm | FIREFIGHTER LADDER WITH EXTENDABLE LADDER PARTS |
-
1986
- 1986-07-25 DE DE19863625298 patent/DE3625298A1/en not_active Withdrawn
-
1987
- 1987-04-11 EP EP87105389A patent/EP0244668B1/en not_active Expired - Lifetime
- 1987-04-11 DE DE8787105389T patent/DE3770044D1/en not_active Expired - Lifetime
- 1987-04-24 JP JP62100211A patent/JPH07103761B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011038297A (en) * | 2009-08-10 | 2011-02-24 | Naka Corp | Evacuation equipment |
| KR20220133447A (en) * | 2021-03-25 | 2022-10-05 | 주식회사 에이치알이앤아이 | Boom of the ladder unit |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0244668A3 (en) | 1988-08-17 |
| EP0244668B1 (en) | 1991-05-15 |
| DE3625298A1 (en) | 1987-10-29 |
| EP0244668A2 (en) | 1987-11-11 |
| JPH07103761B2 (en) | 1995-11-08 |
| DE3770044D1 (en) | 1991-06-20 |
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