WO1997000370A1 - Echelle, notamment tete d'echelle, et mecanisme de roulement d'echelles de pompiers - Google Patents

Echelle, notamment tete d'echelle, et mecanisme de roulement d'echelles de pompiers Download PDF

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Publication number
WO1997000370A1
WO1997000370A1 PCT/CH1996/000224 CH9600224W WO9700370A1 WO 1997000370 A1 WO1997000370 A1 WO 1997000370A1 CH 9600224 W CH9600224 W CH 9600224W WO 9700370 A1 WO9700370 A1 WO 9700370A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
contact points
spars
corners
impellers
Prior art date
Application number
PCT/CH1996/000224
Other languages
German (de)
English (en)
Inventor
Edwin Busenhart
Original Assignee
Edwin Busenhart
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Edwin Busenhart filed Critical Edwin Busenhart
Priority to EP96919521A priority Critical patent/EP0832343B1/fr
Priority to AU58084/96A priority patent/AU5808496A/en
Priority to DE59600921T priority patent/DE59600921D1/de
Publication of WO1997000370A1 publication Critical patent/WO1997000370A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
    • E06C7/482—Supports specially adapted for resting the ladder against or in a corner
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects

Definitions

  • Ladder in particular ladder head and drive for adjuster
  • the invention relates to a ladder head, or a ladder, in particular a pull-out ladder with bars connected by rungs, a foot end and an opposite upper positioning end, on which impellers are arranged, which form forward-facing, rotatable contact points for free positioning on straight wall surfaces, also a drive for a ladder.
  • Extension ladders usually only have impellers if they are extremely long ladders. The most common shorter extension ladders from e.g. 3 to 4 meters total length usually have no wheels.
  • the conductors are made of aluminum or plastic in a lightweight construction. Because the lightweight ladders are very light, it is assumed that placing these short ladders does not pose any problems.
  • the disadvantage of the wheels is that the rollers, due to the line contact, tend to worsen, in any case not improve, the inherently unfavorable adhesion of the contact points of the bar ends.
  • the wheels are mainly available on professionally used ladders.
  • the W094 / 29561 shows how the safety of ladders without wheels can be increased significantly. It is proposed to arrange differently directed fixed contact surfaces.
  • the two bar ends are:
  • the entire publication shows very advantageous jack supports or ladders with jack supports, interesting fastening devices for the jack supports for lightweight ladders, and also how jack supports can be commercialized as a modular system, particularly for retrofitting existing ladders.
  • the W094 / 29561 thus shows how the large number of short conductors can be improved with regard to the security against contact. In the case of long ladders, security against being jammed would be desired to an even greater extent. However, the impellers preclude the takeover of the fixed contact surfaces.
  • the object of the invention was now to remedy the disadvantages of the ladders with running wheels.
  • the new invention was also given a further subtask which improves the user-friendliness.
  • a ladder head system is to be developed that can guarantee all relevant basic requirements. These are e.g. Positioning security, easy attachment to existing or new conductors, pleasant to use in the situations already described, especially on straight walls and on inside and outside corners, and if possible also the easy decision for choosing the specifically better solution.
  • the ladder according to the invention or the ladder head according to the invention is characterized in that the impellers in the region of the two spars have oppositely directed, in particular elastic, contact points which, when used:
  • a second special embodiment of a ladder according to the invention in particular a pull-out ladder with spars connected by rungs, a foot end and an opposite upper contact end, on which impellers are arranged, which form forward-facing, rotatable contact points for straight wall surfaces, is characterized in that the impellers are also opposite have trained contact points for wall corners, which point inwards when used for outside corners and outwards for inside corners; the impellers in particular form an elastic contact point.
  • a third special embodiment of a ladder according to the invention in particular a pull-out ladder with bars connected by rungs, a foot end and an opposite upper end of the line, with oppositely designed contact points which point forward when used for straight wall surfaces, inward for outside corners and outwards for inside corners characterized in that the contact points are formed on an adjusting head of a detachable interchangeable support, an optional support with immovable fixed contact surfaces or impellers can be used with the contact points.
  • the new invention now allows the ladder to be pushed up independently of whether it is a straight wall surface, an inside corner or an outside corner.
  • the corner application even has decisive advantages in that not only is it easier to push up, but it is also safer to use at corners.
  • a ladder designed according to the invention allows it to be pushed up over the impellers without any risk of causing damage and is just as safe in use as a ladder with fixed contact surfaces.
  • the impellers designed according to the invention never form an angular contact point. Especially when used with the weight of the user, the wheels also form due to the elastic deformability a small contact surface.
  • the ladder has fastening points in the area of the upper spar ends for quick mounting of the wheels, in such a way that either an wheel or support paws with fixed contact surfaces can be mounted.
  • the customer can choose one or the other or later change the ladder from one concept to the other.
  • the W094 / 29561 shows fixed contact surfaces.
  • the new invention now allows the corresponding advantages of the fixed contact surfaces to be used even with impellers. It is also not possible in the state of the art to place ladders with wheels on outside corners, since the top rung and not the wheels would contact the corner already during the installation or erection movement. In most applications, the classic ladder with impellers cannot be placed at a corner. The positioning security was very poor when leaning against even inside corners.
  • the adjusting head can either have immovable contact surfaces or an impeller with the contact points, and can be detachably fixed to the change support.
  • the interchangeable support is particularly preferred as a rigid bracket with two opposite support frame formed, which are connected by a parallel to the rungs traverse. Due to the bending stiffness, the interchangeable support absorbs the forces that result from the employment of the conductors as reaction forces from the installation points.
  • Each support frame has at least one areal rib for the protected attachment of user information signs.
  • the interchangeable support can be screwed onto spar adapters, the screw connection preferably being designed to be slightly springy, for cushioning sudden effects. If you observe the way craftsmen deal with ladders, you can see here and there that this can be very rough. Ladders are sometimes just thrown on or onto a truck. Since traditionally nothing stands out from the ladder, it is assumed that nothing can be destroyed on the ladder. However, this leads to a sharp reduction in the lifespan of the conductors to less than 10 years.
  • the support frame and the crossbeam of an interchangeable bracket together have a U-shape, each with a fastening point to the spars in the central region of the U-legs.
  • Each support frame also has a mounting plate with a longitudinal slot for the screw connection on conductors of different widths.
  • adapters are arranged on the ladder stiles, which can be adapted to the respective stile profile by means of two fastening blocks and are firmly screwed to the stile.
  • the mounting blocks have asymmetrically arranged threaded holes for use in different screw-in positions.
  • the adapters can be subsequently attached to almost all conductor profiles.
  • Bar adapters are preferably arranged on both ladder parts of a pull-out ladder, so that both upper bar ends can be positioned on straight wall surfaces with greater certainty via corresponding contact points.
  • the adjusting end can be designed as an angled support head with a running gear, on which the running wheels are arranged so as to be rotatable, the supporting head taking up an angle in the range from about 100 to 1 20 °, preferably of about 1 10 °.
  • the support head is designed as an open shape that intercepts the forces occurring, in particular as a V-shape or as a U-shape.
  • the wheels are very particularly preferably made of an elastic material with good adhesive properties and can have different shapes, for example. a spherical shape, the axis of rotation of which run parallel to the rungs of the ladder.
  • each impeller it is also possible for each impeller to be formed from two hemispheres, each with a common axis of rotation.
  • each impeller can be spherical only over the area of the contact points, correspondingly for positioning on straight wall surfaces, inside corners and outside corners.
  • each impeller is designed as an impeller set with rollers arranged on both sides, each impeller having an approximately vertical pivot axis when used, so that the impellers can be adapted to the respective wall disposition.
  • the carriage has two truncated cone-shaped impellers, which enclose twice 45 °, with a central cylindrical section and with a common axis of rotation.
  • each ladder spar it is also possible for each ladder spar to be assigned an impeller set of at least 2 or 3 impellers which form the mutually identical contact points according to the invention.
  • the impellers of the prior art have more or less hard plastic or metal bodies. This theoretically creates a pure line contact on the straight wall.
  • the impellers according to the new invention are preferably designed as an elastic plastic body, in particular as an elastic rubber body, which have profiled contact surfaces and result in a flat contact point with the weight of the user.
  • the upper end of the two spars is very particularly preferably designed to be torsionally rigid with the drive and with a recess for an outside corner. The The recess leaves enough space so that the top rung never touches the outside corner.
  • the drive is designed as an angled continuation of both spars, such that the effective plane of the contact surfaces is arranged transversely to the two spars, or in the case of an articulated connection, it can be brought in a transverse plane that is at an angle to the spars about 100 to 120 °, preferably about 1 10 °. It is very advantageous if the drive is designed as part of a ladder support head with a V-shaped or U-shaped bracket and can be fastened to the bars, in particular pull-out ladders or long ladders, by means of connecting means.
  • the connecting means for conductors of different widths have bridging rails running parallel to the rungs of the ladder, for fixing in each articulation point or recess in the spars or in transition pieces to the ladder.
  • the running wheels are arranged directly on the outside of spar extensions, such that the upper end of the two spars with the running gear and the top rung of the ladder form a sufficient recess for an outside corner.
  • the drive is designed as part of a U-shaped support bracket, with bridging rails running parallel to the rungs and a pipe and strap connection, for fixing to transition pieces of the two spars of the ladder, or to the spars themselves.
  • FIG. 1 shows the starting and pulling out of a pull-out ladder
  • Figure 1 a an impeller on a larger scale
  • Figures 1 b and 1 c schematically an upper designed according to the invention
  • FIG. 2 shows an entire conductor head with an impeller, with a view from above; 2a shows a drive as a conductor head viewed from the side; 3 shows a conductor head with fixed contact surfaces; 3a shows the side view of FIG. 3 according to arrow III a; Figure 3b is a view according to III of Figure 3a; FIG. 3c shows the use of an adapter without a head with a contact surface on a flat wall; FIG. 4 shows a support frame on a larger scale with user instructions; FIG. 4a signatures as prohibitions; Figure 4b shows a section IV - IV of Figure 4; Figures 5 to 5c a ladder with a fully integrated drive at different
  • FIG. 1 shows the setting of a pull-out ladder 1 according to the invention with a lower part 100 and a pull-out part 101 or the removal of the ladder from the wall, in which the movements take place in the opposite direction.
  • the ladder 1 can be freely leaned against a wall, as shown in C.
  • the person begins to push the pull-out part 101 upwards, the two running wheels 5, 5 'forming the contact points and rolling on the wall when pulled up.
  • the ladder is fully extended and ready for work, or for the reverse process, for pulling in the pull-out part 101.
  • Both ladder parts consist of two spars 2 respectively. 2 'and a number of rungs 3.
  • the ladder is preferably placed against the wall via the upper connecting end 4 of the pull-out part 101.
  • An impeller 5 is shown on a larger scale in FIG.
  • the impeller 5 is rotatably supported with an axis of rotation 6.
  • the impeller 5 has a profiling which additionally increases the security against being hindered in relation to the use of the conductor 1 at corners.
  • Each of the impellers has a central cylindrical section 7 and on both sides in a symmetrical position and inclined at 45 ° in each case an inner, frustoconical section 8 and an outer frustoconical section 9.
  • the impeller is made of soft, deformable rubber or plastic with high static friction.
  • the impeller 5 has a hub 25 and can be manufactured in a known construction, for example as in the case of rolls for roller blinds, and is secured with retaining screws 18.
  • FIGS. 1 b and 1 c At the upper end 4 are impellers 5 on both sides. 5 'arranged, which are rotatably connected about a common axis 6x via a respective axis of rotation 6, 6' with the corresponding spars 2, 2 '.
  • Each of the impellers 5, 5 ' has a central cylindrical section 7, 7', an inner frustoconical section 8, 8 'and an outer frustoconical section 9, 9'.
  • FIG. 1 b shows an outside corner 20, the two frustoconical sections 8, 8 'being the Form jetties 1 1, 1 1 '.
  • a recess is marked, which allows the ladder to line up on an outside corner 20 without the top rung 3a resting on the corner edge 20 '(distance A).
  • the entire upper end of the line 4 is preferably designed to be torsionally rigid, as indicated by double dashes as stiffeners in the uppermost rung 3a and the two bar ends 2a and 2a ', so that the reaction forces are safely transmitted from one side to the other when used at corners.
  • FIG. 2 shows a view of an interchangeable support 10r from above, with the interchangeable support as in FIG. 1 a two impellers 5, 5 'are mounted. Both wheels 5, 5 'are each held in a support frame 1 3, 1 3', which are combined via a cross member 1 9 to form a strong, U-shaped bracket.
  • FIG. 2 shows the ladder in use on an outside corner 20. For a straight wall surface 21, as shown in dash-dotted lines, the cylindrical sections 7, 7 'form the contact points. In the case of an inner corner 22, the outer sections 9, 9 'are used.
  • a rigid tube is provided as a cross member 19 which is screwed to the support frame.
  • FIG. 1 shows a view of an interchangeable support 10r from above, with the interchangeable support as in FIG. 1 a two impellers 5, 5 'are mounted. Both wheels 5, 5 'are each held in a support frame 1 3, 1 3', which are combined via a cross member 1 9 to form a strong, U-shaped bracket.
  • the impeller 5 has a central cylindrical section 7, an inner truncated cone section 8 and an outer truncated cone section 9. The entire impeller 5 is attached via the axis of rotation 6.
  • the impeller has a flattening 23 opposite the wall. So that the flattening occurs when using the ladder, the impeller is made of a soft, deformable rubber or corresponding plastic.
  • a contact surface 24 arises from the contact point in accordance with the solutions of W094 / 29561, which has an inhibiting effect against unrolling when the ladder is used.
  • Figures 3, 3a, 3b, 3c show a different embodiment, in this case an adjusting head 17 with fixed contact surfaces 14, 15, 16 and 16 instead of the drive.
  • 14 ', 1 5', 16 ' which can be quickly mounted on the support frame 1 3, 1 3' by means of retaining screws 1 8 (FIG. 3).
  • a transition piece 30 is fixedly attached to the upper end of the spars 2, 2 'and has a shaped body 36 for the use of the ladder without the change support 10f. Since the conductor width B differs from make to make, the entire ladder support head according to FIG. 3 also has bridging rails 38 which allow the exchangeable support 10f to be securely fixed to conductors of different widths.
  • the whole change support 10f itself is like that Exchange support 10r and designed as a U-shaped support bracket.
  • the assembly or disassembly of the adjusting head 17 is carried out by loosening or. Connection of two retaining screws 18.
  • the support frame 13 and the cross member 19 are identical.
  • FIG. 3a shows an interchangeable support 10f with an adjusting head 17 with immobile contact surfaces on a straight wall 21.
  • the interchangeable support 10f is screwed to the ladder bars 2, 2 'by means of an adapter 30.
  • two fastening blocks 31, 31 ' are fixed once to each spar by means of screws 32.
  • the fastening blocks each have a threaded bore 33, in which the adapters 30 are anchored to the respective spars 2, 2 ′ by means of screws 34. Since there are a wide variety of dimensions in the spar profiles, each adapter has bridges 35 for bridging the different profile dimensions Hph, in which the screws 34 can be moved before the screws 32 are tightened.
  • Figure 3a shows a spars 2, 2 'with a large profile height Hph, Figure 3c with a small profile height Hph.
  • a rubber pin or molded body 36 is attached to each adapter 30 via a screw connection 37 and serves as a contact point for straight wall surfaces 21 when the ladder is used without the change support 10, as shown in FIG. 3c.
  • the support frame 13 of the change support has a slot 38 '(FIG. 4) through which a change support 10r or 10f is fixed to the ladder in the shortest possible time in the adapter 30 by means of a clamping screw 40 and an internal thread 39 (FIG. 3c).
  • a spring steel plate 41 is arranged between the clamping screw 40 and the support frame 13 and is tensioned when the clamping screw 40 is tightened. In the event of a blow in the direction of arrows 42 or 43 this is intercepted by a corresponding deflection of the spring steel plate 41.
  • FIGS. 5 to 5c show the three basic setting situations, which are shown individually in FIG. 5a on a straight wall 21 in FIG. 5b on an inner corner 22 and FIG. 5c on an outer corner 20.
  • the drive with the wheels is an integral part of the ladder, respectively. is firmly connected to the respective spar.
  • the upper end of the line is also designed to take over the lateral forces from the corner positions.
  • FIGS. 6 and 6a instead of the different sections 7, 8 and 9, three independently rotatable rollers 61, 62, 63 are arranged.
  • the function of the roller 63 corresponds to the inner frustoconical section 8.
  • 62 corresponds to 7
  • 61 corresponds to 9 corresponds to the solution according to FIGS. 1 and 2.
  • the rollers 61 and 63 are each offset by an angle of 45 ° to the roller 62.
  • the roller 63 is provided for an outer corner 20, the roller 62 for a straight wall 21 and the roller 61 for an inner corner 22.
  • FIG. 6a is a view VI of FIG. 6 and shows only one half of the conductor head 60, which is indicated by the central axis X-X.
  • FIG. 7 shows an impeller which is designed as a full ball 70.
  • FIG. 7a shows impellers formed from two hemispheres 71 in each case.
  • FIG. 7b only the required contact points on the impeller 72 are spherical.
  • FIG. 7c a wheel set 73 which can be pivoted depending on the wall disposition is arranged on each side of the spar.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)

Abstract

L'invention concerne un mécanisme de roulement à roulettes pour l'extrémité supérieure des deux montants d'une échelle de pompiersqui forment des points d'appui antérieurs sur la surface d'un mur. Par rapport à la technique antérieure, les roulettes (5, 5') comprennent des points d'appui supplémentaires (9, 9') diamétralement opposés pour les coins. Ces points d'appui sont tournés vers l'intérieur lorsqu'ils s'appuient sur des coins extérieurs (20) et vers l'extérieur lorsqu'ils s'appuient sur des coins intérieurs. Les roulettes (5, 5') sont de préférence constituées de corps élastiques. Cette nouvelle échelle permet surtout de déployer des échelles télescopiques pourvues de roulettes sur un mur droit ou sur des coins et offre une sécurité d'appui qui jusqu'à maintenant était impossible à obtenir lorsque l'échelle était appuyée sur des coins de murs. L'invention concerne en outre une tête d'appui à monter sur une échelle et qui peut être sélectivement pourvue de surfaces d'appui immobiles ou de roulettes. Les deux solutions comprennent des points d'appui antérieurs pour surfaces planes de murs et des points d'appui diamétralement opposés pour coins extérieurs et intérieurs. L'utilisateur peut choisir l'un ou l'autre mode d'appui selon ses exigences.
PCT/CH1996/000224 1995-06-14 1996-06-11 Echelle, notamment tete d'echelle, et mecanisme de roulement d'echelles de pompiers WO1997000370A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP96919521A EP0832343B1 (fr) 1995-06-14 1996-06-11 Echelle, notamment tete d'echelle, et mecanisme de roulement d'echelles de pompiers
AU58084/96A AU5808496A (en) 1995-06-14 1996-06-11 Ladder, in particular ladder head, and running gear for simple ladders
DE59600921T DE59600921D1 (de) 1995-06-14 1996-06-11 Leiter insbesondere leiterkopf sowie laufwerk für anstelleiter

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
CH175895 1995-06-14
CH1758/95-7 1995-06-14
CH3273/95 1995-11-20
CH327395 1995-11-20
CH3551/95 1995-12-15
CH355195 1995-12-15

Publications (1)

Publication Number Publication Date
WO1997000370A1 true WO1997000370A1 (fr) 1997-01-03

Family

ID=27173226

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CH1996/000224 WO1997000370A1 (fr) 1995-06-14 1996-06-11 Echelle, notamment tete d'echelle, et mecanisme de roulement d'echelles de pompiers

Country Status (5)

Country Link
EP (1) EP0832343B1 (fr)
AT (1) ATE174102T1 (fr)
AU (1) AU5808496A (fr)
DE (1) DE59600921D1 (fr)
WO (1) WO1997000370A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998035125A1 (fr) * 1997-02-07 1998-08-13 Edwin Busenhart Echelle droite avec un dispositif antiderapant et couche intermediaire adhesive pour echelles droites
GB2453584A (en) * 2007-10-12 2009-04-15 Rojak Design Ltd Ladder stabiliser for use with a ladder positioned against a wall
GB2454280A (en) * 2007-05-17 2009-05-06 Rojak Design Ltd Ladder stand-off assembly with spherical feet
GB2457770A (en) * 2007-10-12 2009-09-02 Rojak Design Ltd Ladder head stabiliser with multiple configurations
AT523482A3 (de) * 2020-02-11 2023-12-15 Heinemann Jan Anordnung aus Steckleiterteil und mobilem Leiteraufsatz mit Sprühkopf und Herstellungsverfahren

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1249573A3 (fr) 2001-04-14 2003-09-17 Benno Hälg Support pour le positionnement d'une échelle
AU2003230090A1 (en) * 2002-05-16 2003-12-02 Edwin Busenhart Extendable ladder that can be rolled out and locked, in addition to running gear heads and running gear therefor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH170960A (de) * 1933-11-14 1934-08-15 Cantone Lorenzo Gleitvorrichtung an Auszugleitern.
US2788930A (en) * 1955-11-25 1957-04-16 Richard D Pals Ladder attachment
GB1340224A (en) * 1970-12-28 1973-12-12 Johnssson Aluminium Steel Eng Ladders
EP0021574A1 (fr) * 1979-05-08 1981-01-07 Carefree Bicycle Tire Company Pneumatique non gonflable et procédé de fabrication
GB2279102A (en) * 1992-06-16 1994-12-21 Edwin Busenhart Ladder head
WO1994029561A2 (fr) * 1993-06-15 1994-12-22 Edwin Busenhart Echelle avec appui, dispositif de fixation, appui et systeme modulaire de construction d'echelles legeres

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH170960A (de) * 1933-11-14 1934-08-15 Cantone Lorenzo Gleitvorrichtung an Auszugleitern.
US2788930A (en) * 1955-11-25 1957-04-16 Richard D Pals Ladder attachment
GB1340224A (en) * 1970-12-28 1973-12-12 Johnssson Aluminium Steel Eng Ladders
EP0021574A1 (fr) * 1979-05-08 1981-01-07 Carefree Bicycle Tire Company Pneumatique non gonflable et procédé de fabrication
GB2279102A (en) * 1992-06-16 1994-12-21 Edwin Busenhart Ladder head
WO1994029561A2 (fr) * 1993-06-15 1994-12-22 Edwin Busenhart Echelle avec appui, dispositif de fixation, appui et systeme modulaire de construction d'echelles legeres

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998035125A1 (fr) * 1997-02-07 1998-08-13 Edwin Busenhart Echelle droite avec un dispositif antiderapant et couche intermediaire adhesive pour echelles droites
GB2454280A (en) * 2007-05-17 2009-05-06 Rojak Design Ltd Ladder stand-off assembly with spherical feet
GB2453584A (en) * 2007-10-12 2009-04-15 Rojak Design Ltd Ladder stabiliser for use with a ladder positioned against a wall
GB2457770A (en) * 2007-10-12 2009-09-02 Rojak Design Ltd Ladder head stabiliser with multiple configurations
AT523482A3 (de) * 2020-02-11 2023-12-15 Heinemann Jan Anordnung aus Steckleiterteil und mobilem Leiteraufsatz mit Sprühkopf und Herstellungsverfahren

Also Published As

Publication number Publication date
AU5808496A (en) 1997-01-15
EP0832343B1 (fr) 1998-12-02
ATE174102T1 (de) 1998-12-15
DE59600921D1 (de) 1999-01-14
EP0832343A1 (fr) 1998-04-01

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