EP2096252A1 - Stützanordnung für eine Leiter - Google Patents
Stützanordnung für eine Leiter Download PDFInfo
- Publication number
- EP2096252A1 EP2096252A1 EP08075149A EP08075149A EP2096252A1 EP 2096252 A1 EP2096252 A1 EP 2096252A1 EP 08075149 A EP08075149 A EP 08075149A EP 08075149 A EP08075149 A EP 08075149A EP 2096252 A1 EP2096252 A1 EP 2096252A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- passageway
- wall
- resilient
- elongated member
- ladder
- 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
- 238000005452 bending Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 11
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 abstract description 2
- 230000009194 climbing Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
- E06C9/02—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/121—Manhole shafts; Other inspection or access chambers; Accessories therefor characterised by the connection between shaft elements, e.g. of rings forming said shaft
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/122—Steps or handrails for shafts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
- E02D29/124—Shaft entirely made of synthetic material
-
- 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
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
- E06C1/36—Ladders suspendable by hooks or the like
Definitions
- the present invention relates to an arrangement for easy installing and stably supporting a ladder in a generally vertically disposed passageway, for example a manhole and to a method for installing a resilient elongated member for use in such an arrangement.
- the invention is especially concerned with an arrangement for easy installing a ladder and for stably supporting a ladder such that damage to the inner wall of the passageway or manhole due to for example penetration of fastening means is minimized.
- Ladders are installed in vertically disposed passageways to provide access to for example sewer systems, water reservoirs, gas transport pipes etc.
- Arrangements for supporting a ladder typically comprise multiple brackets, which brackets are mounted to the wall for example by screws fixed in holes drilled in the inner wall or via hooks provided in prefab elements for constructing a manhole.
- the disadvantage of the known arrangements is that they damage the structural integrity of the wall, and can result in damage to the wall and leakage through the wall.
- the mounting of brackets against the wall is a laborious process which takes a lot of time, while the position of prefit brackets can not be adjusted once the prefab elements have been put in place.
- the ladder Under the weight of a person climbing the ladder, the ladder may move to and from the wall or swing like a pendulum along the wall.
- the bracket supporting the ladder in a vertical direction may be subjected to excessive forces, damaging the bracket and/or the wall to which the bracket is fixed.
- a person climbing the ladder may feel insecure or may even loose his balance and fall down due to the lower part of the ladder moving relative to the wall.
- the object of the invention is to provide an arrangement for supporting a ladder in a generally vertically disposed passageway whereby the above-mentioned drawbacks are eliminated altogether or occur to a greatly reduced extent.
- this is achieved by providing an arrangement for supporting a ladder according to claim 1.
- the present invention provides an arrangement for stably supporting a ladder while minimising damage to the wall of a passageway, such as for example a manhole.
- the present invention furthermore provides a method for quickly and easily installing a resilient elongated member for an arrangement according to the invention.
- An arrangement according to the invention comprises at least one support bracket for securing a ladder near its upper end to a passageway, at least one positioning bracket for positioning the ladder at a distance from an inner wall of the passageway, and at least one resilient elongated member for securing the at least one positioning bracket against the inner wall of the passageway.
- the ladder is supported in a vertical direction by the at least one supporting bracket, which is mounted near an upper end of the passageway, for instance to an upper edge thereof or an inner wall.
- the lower part of the ladder is secured by the one or more positioning brackets.
- the at least one positioning brackets keeps the ladder at a distance from the inside wall, and prevents the ladder from moving away from the inner wall towards the centre of the passageway, and/or from swinging like a pendulum along the wall.
- the positioning brackets are secured against the surface of the inner wall by the resilient elongated member, such as for instance a strip or string, which is designed to be positioned along the inner circumference of the passageway so as to form a ring, or at least a part of a ring, which due to its resilient properties exerts a force in a radial direction against the inner wall for keeping the resilient strip in place.
- the positioning brackets stably position the ladder and prevent it from towards the centre of the passageway, or from acting as a pendulum.
- the elongated member When the elongated member is not mounted, that is in an unloaded condition, it may have a radius of curvature relatively large compared to the radius of curvature of the surface of the inner wall of the passageway. Furthermore, when unloaded the elongated member may also be straight.
- this elongated member By bending this elongated member in a ring or spiral shape having a radius smaller than the radius of the passageway, the elongated member can be positioned inside the passageway.
- the ring shaped elongated member is subsequently allowed to expand until it extends along the circumference of the inner wall of the passageway.
- the elongated member exerts a radially directed force upon the wall surface and thus clamps itself in position against the wall. The friction between the elongated member and the surface of the wall prevents the ring from moving out of its position and falling down.
- the elongated member clamps itself in a fixed position, the member need not be secured by for example bolts or hooks mounted in the wall. Thus the wall maintains its structural integrity.
- the elongated member and the positioning brackets can be installed without the need of heavy machinery such as drills, which is particularly beneficial because passageway such as manholes typically do not provide much room for a person to manoeuvre, let alone for handling heavy machinery and installing a ladder.
- an arrangement according to the invention can easily be removed without leaving holes or hooks in or mounted to the lower sections of the passageway.
- the invention provides a passageway, for instance a manhole, having an inner wall comprising at least one recess extending in a circumferential direction for cooperating with the elongated member.
- a passageway for instance a manhole
- the side walls of the recess provide extra support for the elongated member against movement in a vertical direction.
- the width of the elongated member and the width of the recess are substantially equal, such that the recess locks the ring against movement in a vertical direction.
- the invention further provides a method for installing a resilient elongated member for use in an arrangement according to the invention.
- Fig. 1 shows a view, partially in section, of a manhole structure 7 which is provided with an arrangement 1 for supporting a ladder 2 according to the invention.
- the arrangement shown comprises two support brackets 3 for supporting the ladder 2 in a vertical direction, two positioning brackets 5 for positioning the ladder 2 at a distance from the inner wall 4 of the passageway 7, and one resilient elongated member 6, in particular a strip, for securing at least one positioning bracket 5 against the surface of the inner wall 4 of the passageway 7.
- the support brackets 3 each have a first end for supporting the ladder 2 near its upper end in a vertical direction, and a second end for securing the support bracket to the inner wall 4 of the passageway. They are mounted to the inner wall near the top end of the passageway, which in the embodiment shown is a conical shaped part 13.
- the supports brackets 3 are formed integrally with the conical shaped part 13 of the passageway.
- a conical part 13 may be formed from a thermoplastics material by injection moulding or is formed out of metal components welded together.
- the brackets 3 may be formed as separate parts or as integral parts of the ladder 2.
- the part of the passageway for mounting the support brackets may provide a ridge along the upper circumference of the inner wall of the manhole. Such a ridge may provide a support surface to which the support brackets 3 can easily be mounted, for example by providing the support brackets 3 with hooks to be hooked to the ridge.
- support bracket 3 it is for example also possible to attach the support bracket 3 to the wall of the passageway using fastening means such as screws, by providing the support bracket with hooks that fit into openings provided in the wall of the passageway, or, when support brackets and passageway are at least partially made out of a metal such as steel, by welding.
- prefab elements making up a passageway are of a simple and sober design to keep production costs low.
- the end piece of a passageway is normally a special structure provided with means for receiving a closure for closing off the passageway, etc. Its more complicated design can therefore easily be adapted for providing for example a ridge or openings for mounting the support brackets, without raising the overall production costs of the element.
- fluids normally do not reach the top end of a passageway the risk of leakage due to perforations in this part of the passageway is limited.
- Each positioning bracket 5, for positioning the ladder 2 at a distance from the inner wall 4 has a first end 26 for engaging the ladder 2 below its upper end, and a second end 28 that is designed to engage the elongated member 6 and to be positioned against the surface of the inner wall 4 of the passageway 7.
- the first end 26 is preferably designed to slideably engages a stile of the ladder 2, allowing at least limited vertical movement of the supported ladder 2 relative to the bracket 5.
- the positioning of the resilient strip 6 and the at least one positioning bracket 5 relative to the ladder 2 is less critical.
- the first end 26 may for instance comprise a resilient, substantially C-shaped hook 27, that can be snapped around a stile of the ladder 2.
- the bracket 5 may for example be hingeably attached or fixed to a stile to form an integral part of the ladder 2.
- the second end 28 may for instance be provided with a hook or a slid 29, as illustrated in Figure 3 , to engage the elongated member 6.
- the second end 28 may comprise a support flange 30 for abutment against the inner wall 4 of the passageway.
- Said support flange 30 preferably has a shape that corresponds to that of the inner wall, so that the positioning bracket 5 can be stably placed against the wall 4.
- the support flange 30 thereto features a curved shape that conforms to the curved circumferential surface of the inner wall 4.
- the support flange 30, or at least the portion of the bracket 5 that in mounted condition is clamped between the resilient elongated member 6 and the inner wall of the passageway may have extended dimensions in circumferential direction (with respect to the passageway) so as to increase the contact area with the elongated member 6 and consequently the clamping force exerted thereon. This may help to immobilize the bracket 5 even better against the inner wall of the passageway and may furthermore prevent the bracket 5 from tipping over in lateral direction, that is to rotate around an axis S extending substantially parallel to the stiles shown in Figure 3 .
- FIG. 7 shows an alternative embodiment of a positioning bracket 105 according to the invention, wherein like components have been denoted with like reference numerals, increased by 100.
- the alternative positioning bracket 105 is especially advantageous for use with a passageway wall having one or more circumferentially extending recesses or corrugations.
- the bracket 105 comprises a first end 126 provided with means for engaging the ladder 2, e.g. a resilient hook 127 which can be snapped around a stile of the ladder, and a second end 128 provided with means for engaging the elongated member 6, for instance a slid 118.
- the second end 128 furthermore comprises a support flange 130 which is shaped to fit in a recess or corrugation of the inner wall.
- the width h of the support flange 130 substantially equals the width of such recess or corrugation, so that in mounted condition the flange 130 is blocked against movement in vertical direction and rotation (around centre line M).
- the support flange 130 may feature the same advantages as the support flange 30 described here above.
- the positioning bracket 105 furthermore comprises at least one auxiliary support flange 132A, 132B, which extends substantially parallel to the support flange 130 at a distance thereof, so as to abut, in mounted condition, the inner wall extending above, respectively below the recess. Thanks to such auxiliary support flange(s) 132A, 132B the positioning bracket 105 will be prevented from rotation around an axis extending substantially parallel to the inner wall, substantially perpendicular to the centre line M. Accordingly, the bracket 105 can be supported against the inner wall in a very stable manner, despite of (or thanks to) the recessed surface.
- a central portion 25, 125 of the positioning brackets 5, 105 connecting the first and second ends may be web-shaped (as shown in Figure 3 ) or have an H-shaped cross section (as shown in Figure 7 ).
- the latter configuration may contribute to the bracket's torsion and bending stiffness and as such may help to even better withstand forces and moments acting on the bracket, during use.
- other cross sections are possible, such as tubular, C, I, T-or L-shaped.
- the central portion 25, 125 and the second end 28, respectively 128 are preferably aligned such that in mounted condition, the centre line M of said central portion 25, 125 extends at a substantially straight angle with the inner wall 4 of the passageway. This may result in advantageous loading conditions for the brackets 5, 105.
- brackets 5, 105 are preferably such that the ladder 2, in mounted condition, extends substantially vertical and/or parallel to the passageway wall.
- the positioning brackets 5, 105 do not only function as a spacer for keeping the ladder 2 at bay of the wall 4 of the manhole 7 but also, together with the strip 6, supports the ladder 2 in the opposite direction, preventing it from moving away from the wall 4, and from swinging alongside the wall. Thus a ladder is positioned in a stable manner. Movement of the ladder relative to the inner wall due to a person climbing the ladder is minimized.
- the resilient elongated member 6 is shaped as a strip, with a length which allows it to be positioned along the inner circumference of the passageway 7 so as to form at least part of a ring.
- the strip 6 can have a length substantially equal to the circumference of the passageway, for forming a ring along the full circumference of the passageway such that the first and second end of the strip 6 abut each other head to head.
- the strip 6, when not mounted in a manhole but in its unloaded condition, may have a radius of curvature which is larger than the radius of curvature of the wall 4 of the manhole 7 in which it is to be positioned.
- the strip in unloaded condition may have a radius of curvature which is infinite, e.g. the strip is straight.
- the strip 6 When the strip 6 is positioned in the manhole 7 along the inner circumference of the manhole, the first end 8 and second end 9 of the strip 6 abut each other head to head and the strip 6 forms a ring.
- the ring When in use, the ring thus has a radius of curvature almost equal to the radius of curvature of the inner wall. Due to the resilient properties of the strip 6, the ring exerts a force in a radial direction against the inner wall 4. This radially directed force clamps the strip 6 in place, enabling securing the at least one positioning bracket 5 against the surface of the inner wall 4 of the passageway 7.
- the length of the strip in unloaded condition may be slightly larger than the circumferential contour of the manhole.
- Figures 4-6 show subsequent steps of a method for installing a strip 6 according to the invention in a passageway, in particular a manhole 7.
- the elongated member, in particular the resilient strip 6, is connected with at least one positioning bracket 5, 105.
- the strip 6 is bent in a ring shape by positioning a first end 8 of the strip over an opposite, second end 9 of the strip, as is shown in Fig. 4 .
- the diameter of the ring formed by the strip 6 can easily be adapted by moving one end 8, 9 along the strip.
- the radius of the ring is adjusted until its substantially smaller than the diameter of the manhole 7 such that the bent strip 6 can easily be positioned inside the manhole.
- the ring When the strip is positioned correctly in the manhole 7, the ring is allowed to expand by way of its resilient property, to clamp itself, e.g. the resilient elongated member, in position against the inner wall of the manhole.
- the length of the strip 6 in unloaded condition is slightly larger than the circumferential contour of the manhole 7.
- the ends 8, 9 slightly overlap.
- One end (8, 9) e.g. the end overlapping at the centre side of the ring, is bent inwards and positioned against the opposite end (8, 9), creating a section 15 of the strip 6 that bulges inward towards the centre of the ring, as is shown in Fig. 5 .
- This section of the strip will snap into position against the inner wall 4 of the manhole 7 to form a ring.
- the entire resilient strip 6 now lies against the surface of the inner wall 4 of the manhole 7, as is shown in Fig. 6 . Furthermore, the strip 6 is also under compression in its longitudinal direction, enlarging the overall force with which the strip clamps itself inside the manhole 7.
- both ends 8, 9 of the resilient strip 6 are positioned head to head, the ends are prevented from sliding along the inside of the wall towards and away from each other in a circumferential direction.
- the positioning bracket 5, 105 may be positioned prior to and/or after expanding the ring by sliding along the longitudinal direction of the elongated member.
- the positioning bracket 5, 105 may be designed, for example with hooks, for connecting to the elongated member 6 after the member has been positioned along the wall of the passageway.
- the arrangement according to the invention may further comprise a connector, for example in the form of a sleeve 10 as shown in fig. 4-6 , slideable along at least part of the resilient strip for positioning the first end 8 of the resilient strip 6 relative to the second end 9 of the resilient strip.
- the sleeve thus fixes the two ends relative to each other.
- the connector may also be part of the at least one positioning bracket 5.
- a manhole 7, notably the vertically aligned shaft comprises at least one recessed inner wall 14, extending in a circumferential direction, for cooperating with the resilient strip 6 and one or more positioning brackets 105 as described with reference to Figure 7 .
- the side walls of the recess provide extra support for the strip against movement in a vertical direction.
- the support flange 130 of the positioning bracket 105 Preferably, the recess 14 has a width substantially equal to the width of the resilient strip 6 such that the recess locks the resilient strip against movement in the vertical direction.
- the strip 6 can easily be positioned in the passageway 7.
- the manhole 7 comprises multiple recesses 14, forming a corrugated surface 16.
- one or more resilient strips 6 can be easily positioned.
- strips can be positioned at different heights.
- the support bracket 3 may comprise a hook 11 for supporting the ladder 2 and a resilient finger 12 which is arranged to restrict the movement of the ladder 2 when the ladder is placed in the hook 11.
- the resilient finger is positioned at the open end of the hook 11.
- a closing position into an open position.
- the resilient finger moves back into the closing position.
- the latter is shown in Fig. 3 .
- the resilient finger prevents the ladder from being moved out of the hook.
- the hook and finger may be formed out of one piece, for example out of plastic such as PVC, PE or PP.
- the finger may for example be formed out of a relatively stiff material connected via a hinge with the hook and provided with a spring for forcing the finger into the blocking position.
- an arrangement according to the invention may also be used for supporting pipes or hoses in a manhole. Furthermore, the arrangement may also be used in combination with a passageway having for example an oval cross section.
- a resilient strip according to the invention may be made out of plastic, for example PVC or PP However, other materials having a resilient property may also be used.
- the resilient elongated member has a rectangular cross section. In a mounted position it lays with a flat side against the surface of the inner wall.
- the relatively large contact surface provided by a rectangular cross section causes a large friction between the resilient strip and the surface of the manhole, preventing the strip from easily sliding out of position.
- the surface of the strip may be provided with a rough surface.
- intermediates such as sheets of rough material may be positioned between strip and wall for providing extra friction.
- the elongated member may have another cross section than rectangular, such as an elliptical, T-shaped, hollow or circular cross section, may also be used.
- the cross section of the resilient elongated member may be designed for cooperating with a recess in the inner wall.
- both the recess and the elongated member may have a triangular cross section such that the elongated member when mounted in the recess fits tightly therein.
- a skilled person may select a cross section of particular dimension in relation to the size of the manhole and the forces needed to securely position a ladder.
- the posts of a ladder do not touch the ground.
- the support brackets 3 are designed to carry the full weight of the ladder and at least one person climbing it. Thus there is no risk of the posts damaging the bottom of the manhole.
- two or more resilient strips can be positioned on top of each other, forming concentric rings, to provide an extra clamping force securing the ring in position.
- components can be incorporated, for example, the support and/or positioning brackets can be incorporated with the ladder.
- the length of the strip may exceed the inner circumference of the passageway and the strip may be provided at both ends with a number of small holes. The overlapping ends may then be connected by pushing a short dowel or similar into 2 overlapping holes. It is also possible to provide the strip at one end with a fixed connector and on the other end with small holes.
- one end surface of the elongated member may be provided with one or more protrusions such as pins, while the other end surface may be provided with one or more complementary recesses, so as to provide for a male-female connection.
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08075149A EP2096252B1 (de) | 2008-02-28 | 2008-02-28 | Stützanordnung für eine Leiter |
DK08075149.8T DK2096252T3 (da) | 2008-02-28 | 2008-02-28 | Arrangement til at støtte en stige |
RS20120474A RS52516B (en) | 2008-02-28 | 2008-02-28 | SCALE HOLDER |
PL08075149T PL2096252T3 (pl) | 2008-02-28 | 2008-02-28 | Układ do podtrzymywania drabiny |
PCT/NL2009/000026 WO2009108042A1 (en) | 2008-02-28 | 2009-02-06 | Arrangement for supporting a ladder |
EA201071009A EA016942B1 (ru) | 2008-02-28 | 2009-02-06 | Устройство для крепления лестницы |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08075149A EP2096252B1 (de) | 2008-02-28 | 2008-02-28 | Stützanordnung für eine Leiter |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2096252A1 true EP2096252A1 (de) | 2009-09-02 |
EP2096252B1 EP2096252B1 (de) | 2012-10-10 |
Family
ID=39665846
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08075149A Active EP2096252B1 (de) | 2008-02-28 | 2008-02-28 | Stützanordnung für eine Leiter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP2096252B1 (de) |
DK (1) | DK2096252T3 (de) |
EA (1) | EA016942B1 (de) |
PL (1) | PL2096252T3 (de) |
RS (1) | RS52516B (de) |
WO (1) | WO2009108042A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102312480A (zh) * | 2011-09-14 | 2012-01-11 | 周佰兴 | 带有爬梯的检查井 |
CN106499333A (zh) * | 2016-11-11 | 2017-03-15 | 中车建设工程有限公司 | 用于检查井的爬梯机构 |
WO2017111615A1 (en) * | 2015-12-23 | 2017-06-29 | Eirik Strand | Adapter |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3040981C1 (de) * | 1980-10-28 | 1982-09-02 | Udo 1000 Berlin Scheffler | Vorrichtung zum Halten von Steigeisen |
FR2654460A1 (fr) * | 1989-11-15 | 1991-05-17 | Legrand Rene | Procede et appareillage pour l'amenagement d'une echelle a l'interieur des chambres de tirage et fosses betonnees similaires. |
DE29620046U1 (de) * | 1996-11-19 | 1997-01-09 | Smit, Wilhelm, 47445 Moers | Mobile Einstiegshilfe |
DE29811977U1 (de) | 1997-07-10 | 1998-10-01 | Olympus Winter & Ibe Gmbh, 22045 Hamburg | Bipolares endoskopisches Instrument |
DE29810762U1 (de) * | 1998-02-23 | 1998-10-08 | Meyer, Wilfried, 32257 Bünde | Mobiler Sicherheitseinstieg für Kanalschächte |
DE29811997U1 (de) * | 1998-07-06 | 1998-11-26 | Rittmann, Hans-Jürgen, 46514 Schermbeck | Einstiegshilfe zur raschen Kopplung an Einstiegsstellen sowie zum sicheren Ein- und Ausstieg aus denselben |
DE20207891U1 (de) * | 2002-05-22 | 2002-08-22 | Lorenz Hasenbach GmbH & Co KG, 65520 Bad Camberg | Verankerungsvorrichtung |
WO2004018787A1 (en) * | 2002-08-21 | 2004-03-04 | Meiklewall Limited | Apparatus for flood protection of manholes and access covers |
-
2008
- 2008-02-28 RS RS20120474A patent/RS52516B/en unknown
- 2008-02-28 EP EP08075149A patent/EP2096252B1/de active Active
- 2008-02-28 DK DK08075149.8T patent/DK2096252T3/da active
- 2008-02-28 PL PL08075149T patent/PL2096252T3/pl unknown
-
2009
- 2009-02-06 EA EA201071009A patent/EA016942B1/ru not_active IP Right Cessation
- 2009-02-06 WO PCT/NL2009/000026 patent/WO2009108042A1/en active Application Filing
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3040981C1 (de) * | 1980-10-28 | 1982-09-02 | Udo 1000 Berlin Scheffler | Vorrichtung zum Halten von Steigeisen |
FR2654460A1 (fr) * | 1989-11-15 | 1991-05-17 | Legrand Rene | Procede et appareillage pour l'amenagement d'une echelle a l'interieur des chambres de tirage et fosses betonnees similaires. |
DE29620046U1 (de) * | 1996-11-19 | 1997-01-09 | Smit, Wilhelm, 47445 Moers | Mobile Einstiegshilfe |
DE29811977U1 (de) | 1997-07-10 | 1998-10-01 | Olympus Winter & Ibe Gmbh, 22045 Hamburg | Bipolares endoskopisches Instrument |
DE29810762U1 (de) * | 1998-02-23 | 1998-10-08 | Meyer, Wilfried, 32257 Bünde | Mobiler Sicherheitseinstieg für Kanalschächte |
DE29811997U1 (de) * | 1998-07-06 | 1998-11-26 | Rittmann, Hans-Jürgen, 46514 Schermbeck | Einstiegshilfe zur raschen Kopplung an Einstiegsstellen sowie zum sicheren Ein- und Ausstieg aus denselben |
DE20207891U1 (de) * | 2002-05-22 | 2002-08-22 | Lorenz Hasenbach GmbH & Co KG, 65520 Bad Camberg | Verankerungsvorrichtung |
WO2004018787A1 (en) * | 2002-08-21 | 2004-03-04 | Meiklewall Limited | Apparatus for flood protection of manholes and access covers |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102312480A (zh) * | 2011-09-14 | 2012-01-11 | 周佰兴 | 带有爬梯的检查井 |
WO2017111615A1 (en) * | 2015-12-23 | 2017-06-29 | Eirik Strand | Adapter |
US10794034B2 (en) | 2015-12-23 | 2020-10-06 | Sema Invest As | Adapter frame |
CN106499333A (zh) * | 2016-11-11 | 2017-03-15 | 中车建设工程有限公司 | 用于检查井的爬梯机构 |
CN106499333B (zh) * | 2016-11-11 | 2018-03-02 | 中车建设工程有限公司 | 用于检查井的爬梯机构 |
Also Published As
Publication number | Publication date |
---|---|
PL2096252T3 (pl) | 2013-02-28 |
EA201071009A1 (ru) | 2011-04-29 |
RS52516B (en) | 2013-04-30 |
DK2096252T3 (da) | 2012-11-12 |
WO2009108042A1 (en) | 2009-09-03 |
EP2096252B1 (de) | 2012-10-10 |
EA016942B1 (ru) | 2012-08-30 |
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