CA1057540B - Mounting support for climbing elements or the like - Google Patents
Mounting support for climbing elements or the likeInfo
- Publication number
- CA1057540B CA1057540B CA291,850A CA291850A CA1057540B CA 1057540 B CA1057540 B CA 1057540B CA 291850 A CA291850 A CA 291850A CA 1057540 B CA1057540 B CA 1057540B
- Authority
- CA
- Canada
- Prior art keywords
- sleeve
- serrations
- mounting support
- wall
- bore
- 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.)
- Expired
Links
- 230000009194 climbing Effects 0.000 title claims abstract description 43
- 230000037431 insertion Effects 0.000 claims abstract description 13
- 238000003780 insertion Methods 0.000 claims abstract description 13
- 239000004033 plastic Substances 0.000 claims abstract description 11
- 229920003023 plastic Polymers 0.000 claims abstract description 9
- 241000251468 Actinopterygii Species 0.000 abstract 2
- 239000000463 material Substances 0.000 description 8
- 239000004677 Nylon Substances 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229920004943 Delrin® Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 230000000875 corresponding effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/02—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose in one piece with protrusions or ridges on the shaft
-
- 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
- E06C9/04—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes rigidly mounted in the form of climbing irons or the like
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
- F16B13/126—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting an unthreaded element, e.g. pin or nail
Abstract
A B S T R A C T
A mounting support for insertion into a bore in the wall, and a climbing element, the climbing element having a hollow shank portion which is inserted into the mounting support, the mounting support comprising a hard, strong, yielding plastic sleeve having a cylindrical or square cross-section, the sleeve having inner and outer longitudinal surfaces with serrations, in the form of ring-shaped fins which are interrupted to form fish scale sectors with gaps between them, the gaps being arranged in staggered relation to each other peripherally, the serrations on the inner surface having oblique slopes running in the direction of insertion of the sleeve into the bore in the wall and the serrations on the outer surface having oblique slopes running in the other direction whereby, when the shank of the climbing element is inserted into the sleeve and the sleeve is force fitted into the bore in the wall, said serrations resist pulling away of the climbing element from the wall and said staggered gaps between adjacent fish scale sectors form a labyrinth seal.
A mounting support for insertion into a bore in the wall, and a climbing element, the climbing element having a hollow shank portion which is inserted into the mounting support, the mounting support comprising a hard, strong, yielding plastic sleeve having a cylindrical or square cross-section, the sleeve having inner and outer longitudinal surfaces with serrations, in the form of ring-shaped fins which are interrupted to form fish scale sectors with gaps between them, the gaps being arranged in staggered relation to each other peripherally, the serrations on the inner surface having oblique slopes running in the direction of insertion of the sleeve into the bore in the wall and the serrations on the outer surface having oblique slopes running in the other direction whereby, when the shank of the climbing element is inserted into the sleeve and the sleeve is force fitted into the bore in the wall, said serrations resist pulling away of the climbing element from the wall and said staggered gaps between adjacent fish scale sectors form a labyrinth seal.
Description
lOS7540 The present invention relates to a mounting support yet claims limited to combination for climbing elements or the like, the free ends of which are tube-shaped and capable of being an-chored in a wall by means of sleeves which are insertable into bores in the wall.
The term "climbing elements" is intended to include U-shaped stirrups of steel, light metal or other suitable materials, ladders made of one piece or assembled from individual components, associated aids to climbing such as handholds, guard railings and the like.
Such climbing elements are appropriately clad in a plas-tic material or with aluminium, are used in sewer manholes, water reservoirs, sewage treatment plants which are subjected to various chemicals, moisture and vapors, and similar objects, and serve for moving about on such objects.
Traditionally, the fastening of the climbing elements has been accomplished by cementing them in or embedding them in concrete. This necessitates quite large cutouts in the wall which weaken it, so that cracks often results through which water can penetrate into the passages. The mounting and fastening of the climbing elements involves a great deal of wasted material and is expensive. Further, there is a serious danger of oxidation and rusting-through in cases where the ends of the climbing elements are cemented in, so that it is not uncommon for a climbing element to break unexpectedly. The replacement of climbing elements an-chored in this manner is both time-consuming and costly.
The object of the present invention is to provide a moun-ting support for such a climbing element which overcomes the above-mentioned disadvantages. The climbing element can be fastened into the wall easily and quickly and the fastening is not subject to any danger of corrosion.
In accordance with the present invention, a mounting support is provided for climbing elements, the free ends of which are tube-shaped and capable of being anchored in a wall by means of sleeves which are insertable into internal bores in the wall.
The invention is characterized by the fact that at least the ex-terior surface of each sleeve is provided with peripheral fins which are sub-divided into sector-shaped segments in fish-scale fashion, and which are so arranged that they slope counter to the insertion direction of the sleeve, the gaps between adjacent fins being staggered with respect to each other peripherally, so that these gaps form a labyrinth seal. It is also advantageous to pro-vide the interior surface of each sleeve with peripheral fins which are sub-divided into sector-shaped segments ln fish-scale fashion and which are arranged to slope in the insertion direction of the sleeve.
The preferred embodiments of the invention will be better understood from the following description and accompanying drawings, in which:
Fig. 1 is a general illustration of a passage with climbing elements;
Fig. 2 shows a mounting support in axial section;
Fig. 3 shows a developed projection of the exterior surface of a sleeve;
Fig. 4 is an alternative embodiment of Fig. 3, and Fig. 5 is a perspective view of a sleeve.
Fig. 1 illustrates a partly installed set of climbing equipment for a sewer manhole. The equipment consists of a number of pieces of pipe bent in U-shape and provided with a covering, the pieces being fastened vertically one above the other in the ~057540 wall 1 of the sewer manhole. For this purpose, bores 2 are drilled into the manhole wall, the diameter of the bores being somewhat smaller than the largest diameter of the sleeves 3 to be inserted into the bores, thereby providing a force fit. Such a sleeve 3 is shown in axial section in Fig. 2.
The sleeve consists of a hard, strong, yielding plastic material and its inner wall is in the form of a cylindrical or square interior bore 4, the inner surfaces of the bore being pro-vided with serrations 5 in the form of ring-shaped fins which are interrupted peripherally so that sector-shaped segments are formed in fish-scale fashion with gaps between them. The plastic mater-ials useful for manufacturing the sleeve elements are well known and such materials as the trademark "Delrin", polyethylene tere-phthalate, polycarbonate resin and nylon may be used.
The exterior surface of the sleeve 3 is similarly pro-vided with ring-shaped fins 6 which are also interrupted to form sector-shaped, fish-scale segments 7 having intermediate gaps (see Fig. 5). These segments 7 of the ring-fins 6 are of unequal size and have surfaces of varying dimensions and areas. The ob-lique slopes of these segments 7 run counter to the insertiondirection P of the sleeve 3. In contrast, the surfaces of the interior fins 5 are sloped in the insertion direction P. The gaps 8 between the individual scale-shaped segments 7 lie clamped against the bore wall to lock the sleeve in the bore 2 so that the sleeve is prevented from being pulled out of the bore 2. Even if the bore wall is of a non-uniform nature or is out-of-round, the scale-shaped segments 7 adjust themselves to the adjoining wall surface of the bore because of the yielding character of the plas-tic material and because of the spacing between the scale-shaped segments.
According to the alternative embodiment shown in Fig. 4, the exterior fins are arranged in helical fashion and are again sub-divided into individual scale-shaped segments 9. As in the embodiment of Fig. 3, the gaps 10 of adjacent helical "threads"
do not lie directly one behind the other but are staggered peri-pherally so that a labyrinth seal is formed. The slope of the surfaces of the helically-arranged fins is counter to the insertion direction P of the sleeve.
The shape and arrangement of the interior fins 5 are exactly the same as those of the exterior fins with the exception of the slope of the fine surface, which is in the same direction as the insertion direction P.
After the sleeves 3 have been forcibly inserted into the bores 2, each of the shanks 11 of a climbing element 19 is anchored in one of the sleeves 3. Preferably, the open end 12 of the tube-shaped shank end is closed off by means of a closure piece 13 which is made of plastic material such as nylon or the like. The closure piece consists of a plug 14 having an outer diameter cor-responding to the interior bore 4 o~ the sleeve 3 and having on its outer surface interrupted ring-fins 15 which are sloped in the same direction as the interior fins S of the sleeve 3. Further-more, the closure piece is provided with a tube extension 16 of smaller diameter and projecting axially, the outer diameter of which corresponds to the inner diameter of the climbing element 19.
This tube also has interrupted ring- or helically-arranged fins 17, which are directed counter to the fins 15, so that the tube can easily be inserted into the bore of the climbing element 19 but cannot be withdrawn from it.
After the ends 12 of the climbing element 19 have been closed off with closure pieces 13, the shanks 11 of the climbing element together with closure pieces 13 are inserted, one each, onto the sleeves 3, which were previously anchored in the wall 1 of the manhole wall. The ring-fins 15 interlock with the fins 5 of the sleeve 3, which also press against the inserted shank end 11 of the climbing element l9, so that the climbing element 19 is held immovably fast. The longitudinal fins 18 prevent any turning of the sleeve in the bore.
As mentioned above, Fig. 1 shows a partially installed set of climbing equipment with three fully-anchored climbing ele-ments 19 for ascending and descending the illustrated sewer man-hole. In exactly the same manner, climbing aids of different shapes can be fastened to the wall, such as the rod-shaped climbing aid 21 equipped with sockets, also shown in ~ig. 1. The rod-shaped climbing aid 21 is supported adjustably in the sockets and can be shifted from the illustrated working position into the rest posi-tion, shown in dotted lines, by pushing it in the axial direction.
If, for any reason, a climbing element must be removed from its anchorage, this can be done by using a hydraulic jack set in between the cross-support portion of the climbing element 19, which is parallel to the wall, and the wall.
3~
The term "climbing elements" is intended to include U-shaped stirrups of steel, light metal or other suitable materials, ladders made of one piece or assembled from individual components, associated aids to climbing such as handholds, guard railings and the like.
Such climbing elements are appropriately clad in a plas-tic material or with aluminium, are used in sewer manholes, water reservoirs, sewage treatment plants which are subjected to various chemicals, moisture and vapors, and similar objects, and serve for moving about on such objects.
Traditionally, the fastening of the climbing elements has been accomplished by cementing them in or embedding them in concrete. This necessitates quite large cutouts in the wall which weaken it, so that cracks often results through which water can penetrate into the passages. The mounting and fastening of the climbing elements involves a great deal of wasted material and is expensive. Further, there is a serious danger of oxidation and rusting-through in cases where the ends of the climbing elements are cemented in, so that it is not uncommon for a climbing element to break unexpectedly. The replacement of climbing elements an-chored in this manner is both time-consuming and costly.
The object of the present invention is to provide a moun-ting support for such a climbing element which overcomes the above-mentioned disadvantages. The climbing element can be fastened into the wall easily and quickly and the fastening is not subject to any danger of corrosion.
In accordance with the present invention, a mounting support is provided for climbing elements, the free ends of which are tube-shaped and capable of being anchored in a wall by means of sleeves which are insertable into internal bores in the wall.
The invention is characterized by the fact that at least the ex-terior surface of each sleeve is provided with peripheral fins which are sub-divided into sector-shaped segments in fish-scale fashion, and which are so arranged that they slope counter to the insertion direction of the sleeve, the gaps between adjacent fins being staggered with respect to each other peripherally, so that these gaps form a labyrinth seal. It is also advantageous to pro-vide the interior surface of each sleeve with peripheral fins which are sub-divided into sector-shaped segments ln fish-scale fashion and which are arranged to slope in the insertion direction of the sleeve.
The preferred embodiments of the invention will be better understood from the following description and accompanying drawings, in which:
Fig. 1 is a general illustration of a passage with climbing elements;
Fig. 2 shows a mounting support in axial section;
Fig. 3 shows a developed projection of the exterior surface of a sleeve;
Fig. 4 is an alternative embodiment of Fig. 3, and Fig. 5 is a perspective view of a sleeve.
Fig. 1 illustrates a partly installed set of climbing equipment for a sewer manhole. The equipment consists of a number of pieces of pipe bent in U-shape and provided with a covering, the pieces being fastened vertically one above the other in the ~057540 wall 1 of the sewer manhole. For this purpose, bores 2 are drilled into the manhole wall, the diameter of the bores being somewhat smaller than the largest diameter of the sleeves 3 to be inserted into the bores, thereby providing a force fit. Such a sleeve 3 is shown in axial section in Fig. 2.
The sleeve consists of a hard, strong, yielding plastic material and its inner wall is in the form of a cylindrical or square interior bore 4, the inner surfaces of the bore being pro-vided with serrations 5 in the form of ring-shaped fins which are interrupted peripherally so that sector-shaped segments are formed in fish-scale fashion with gaps between them. The plastic mater-ials useful for manufacturing the sleeve elements are well known and such materials as the trademark "Delrin", polyethylene tere-phthalate, polycarbonate resin and nylon may be used.
The exterior surface of the sleeve 3 is similarly pro-vided with ring-shaped fins 6 which are also interrupted to form sector-shaped, fish-scale segments 7 having intermediate gaps (see Fig. 5). These segments 7 of the ring-fins 6 are of unequal size and have surfaces of varying dimensions and areas. The ob-lique slopes of these segments 7 run counter to the insertiondirection P of the sleeve 3. In contrast, the surfaces of the interior fins 5 are sloped in the insertion direction P. The gaps 8 between the individual scale-shaped segments 7 lie clamped against the bore wall to lock the sleeve in the bore 2 so that the sleeve is prevented from being pulled out of the bore 2. Even if the bore wall is of a non-uniform nature or is out-of-round, the scale-shaped segments 7 adjust themselves to the adjoining wall surface of the bore because of the yielding character of the plas-tic material and because of the spacing between the scale-shaped segments.
According to the alternative embodiment shown in Fig. 4, the exterior fins are arranged in helical fashion and are again sub-divided into individual scale-shaped segments 9. As in the embodiment of Fig. 3, the gaps 10 of adjacent helical "threads"
do not lie directly one behind the other but are staggered peri-pherally so that a labyrinth seal is formed. The slope of the surfaces of the helically-arranged fins is counter to the insertion direction P of the sleeve.
The shape and arrangement of the interior fins 5 are exactly the same as those of the exterior fins with the exception of the slope of the fine surface, which is in the same direction as the insertion direction P.
After the sleeves 3 have been forcibly inserted into the bores 2, each of the shanks 11 of a climbing element 19 is anchored in one of the sleeves 3. Preferably, the open end 12 of the tube-shaped shank end is closed off by means of a closure piece 13 which is made of plastic material such as nylon or the like. The closure piece consists of a plug 14 having an outer diameter cor-responding to the interior bore 4 o~ the sleeve 3 and having on its outer surface interrupted ring-fins 15 which are sloped in the same direction as the interior fins S of the sleeve 3. Further-more, the closure piece is provided with a tube extension 16 of smaller diameter and projecting axially, the outer diameter of which corresponds to the inner diameter of the climbing element 19.
This tube also has interrupted ring- or helically-arranged fins 17, which are directed counter to the fins 15, so that the tube can easily be inserted into the bore of the climbing element 19 but cannot be withdrawn from it.
After the ends 12 of the climbing element 19 have been closed off with closure pieces 13, the shanks 11 of the climbing element together with closure pieces 13 are inserted, one each, onto the sleeves 3, which were previously anchored in the wall 1 of the manhole wall. The ring-fins 15 interlock with the fins 5 of the sleeve 3, which also press against the inserted shank end 11 of the climbing element l9, so that the climbing element 19 is held immovably fast. The longitudinal fins 18 prevent any turning of the sleeve in the bore.
As mentioned above, Fig. 1 shows a partially installed set of climbing equipment with three fully-anchored climbing ele-ments 19 for ascending and descending the illustrated sewer man-hole. In exactly the same manner, climbing aids of different shapes can be fastened to the wall, such as the rod-shaped climbing aid 21 equipped with sockets, also shown in ~ig. 1. The rod-shaped climbing aid 21 is supported adjustably in the sockets and can be shifted from the illustrated working position into the rest posi-tion, shown in dotted lines, by pushing it in the axial direction.
If, for any reason, a climbing element must be removed from its anchorage, this can be done by using a hydraulic jack set in between the cross-support portion of the climbing element 19, which is parallel to the wall, and the wall.
3~
Claims (12)
1. In combination, a mounting support for insertion into a bore in a wall and a climbing element, said climbing element having a hollow shank portion which is inserted into said mount-ing support, said mounting support comprising a hard, strong, yielding plastic sleeve having a cylindrical or square cross-section, said sleeve having inner and outer longitudinal surfaces with serrations in the form of ring-shaped fins which are inter-rupted to form fish-scale sectors with gaps between them, said gaps being arranged in staggered relation to each other peripher-ally, said serrations on the inner surface having oblique slopes running in the direction of insertion of the sleeve into the bore in the wall and the serrations on the outer surface having oblique slopes running in the other direction whereby, when the shank of the climbing element is inserted into the sleeve and the sleeve is force fitted into the bore in the wall, said serrations resist pulling away of the climbing element from the wall and said stag-gered gaps between adjacent fish-scale sectors form a labyrinth seal.
2. A mounting support as claimed in claim 1, wherein said interruptions in the serrations are sub-divided to provide non-uniform surface areas.
3. A mounting support as claimed in claim 1, wherein said serrations are helically disposed.
4. A mounting support as claimed in claim 1, wherein said serrations are in the form of parallel rings.
5. A mounting support as claimed in claim 1, wherein a plastic closure plug is provided to close the end of said hollow shank portion.
6. A mounting support as claimed in claim 5, wherein said plastic closure plug is cylindrical and has an outer diameter corresponding to the inner bore of said sleeve which is also cylindrical and wherein said closure plug includes a tube extension smaller in diameter than said plug which smaller diameter corres-ponds to the inner diameter of said hollow shank.
7. A mounting support as claimed in claim 6, wherein said outer surface of said closure plug is formed with interrupted ring-shaped fins which slope in the same direction as the serra-tions on the inner surface of said sleeve.
8. A mounting support for insertion into a bore in a wall for supporting a climbing element, said mounting support compri-sing a hard, strong, yielding plastic sleeve having inner and outer longitudinal surfaces, the outer longitudinal surface having serrations in the form of ring-shaped fins which are interrupted to form fish-scale sectors with gaps between them, said gaps being arranged in staggered relation to each other peripherally, and having oblique slopes running away from the direction of insertion of the sleeve, whereby when the sleeve is force fitted into the bore in the wall and the climbing element is inserted into the sleeve, said serrations resist pulling away of the climbing element from the wall and said staggered gaps between adjacent fish-scale sectors form a labyrinth seal.
9. A mounting support for insertion into a bore in a wall for supporting a climbing element, said mounting support compri-sing a hard, strong, yeilding plastic sleeve, said sleeve having inner and outer longitudinal surfaces with serrations in the form of ring-shaped fins which are interrupted to form fish-scale sectors with gaps between them, said gaps being arranged in stag-gered relation to each other peripherally, said serrations on the inner surface having oblique slopes running in the direction of insertion of the sleeve into the bore in the wall and the serrations on the outer surface having oblique slopes running in the other direction whereby, when the sleeve is force fitted into the bore in the wall and the shank of the climbing element is inserted into the sleeve, said serrations resist pulling away of the climbing element from the wall and said staggered gaps between adjacent fish-scale sectors form a labyrinth seal.
10. A mounting support as claimed in claim 8 or .9, wherein said interruptions in the serrations are sub-divided to provide non-uniform surface areas.
11. A mounting support as claimed in claim 8 or 9, wherein said serrations are helically disposed.
12. A mounting support as claimed in claim B or 9, wherein said serrations are in the form of parallel rings.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT1000571A AT315754B (en) | 1971-11-19 | 1971-11-19 | Holder for climbing elements or the like. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1057540B true CA1057540B (en) | 1979-07-03 |
Family
ID=3619135
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA155,769A Expired CA956153A (en) | 1971-11-19 | 1972-11-06 | Mounting support for climbing elements or the like |
| CA291,850A Expired CA1057540B (en) | 1971-11-19 | 1977-11-28 | Mounting support for climbing elements or the like |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA155,769A Expired CA956153A (en) | 1971-11-19 | 1972-11-06 | Mounting support for climbing elements or the like |
Country Status (12)
| Country | Link |
|---|---|
| AT (1) | AT315754B (en) |
| CA (2) | CA956153A (en) |
| CH (1) | CH556466A (en) |
| DD (1) | DD99632A5 (en) |
| DE (1) | DE2254550C3 (en) |
| DK (1) | DK129868B (en) |
| ES (1) | ES185822Y (en) |
| GB (1) | GB1374178A (en) |
| HU (1) | HU165473B (en) |
| IT (1) | IT984608B (en) |
| NL (1) | NL7215371A (en) |
| NO (1) | NO133633C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4100997A (en) * | 1976-06-21 | 1978-07-18 | Peacock Bobbie D | Step construction employing insertable fastener having deformable projections |
| DE2713530C3 (en) * | 1977-03-26 | 1979-12-20 | Wilhelm 4030 Ratingen Nelles | Spreading connection |
| DE3014745A1 (en) * | 1980-04-17 | 1981-10-22 | Itw-Ateco Gmbh, 2000 Norderstedt | ONE-PIECE FASTENING ELEMENT FROM PLASTIC (SELF-CENTERING TREE CLIP) |
| CA1183707A (en) * | 1980-06-16 | 1985-03-12 | Lisa E. Chisholm | Plastic drive fastener |
| DE3322985C1 (en) * | 1983-06-25 | 1984-11-22 | Chemieschutz Gesellschaft für Säurebau mbH, 6140 Bensheim | Climbing element to be anchored in a wall |
| JPS60189607U (en) * | 1984-05-28 | 1985-12-16 | 株式会社 ムラコシ精工 | Connectors for wood, etc. |
| US4610330A (en) * | 1984-07-25 | 1986-09-09 | Clay And Bailey Manufacturing Co., Inc. | Drive-in manhole step construction |
| DE3430848A1 (en) * | 1984-08-22 | 1986-03-06 | Heinrich Urdorf Zürich Zenhäusern | STIRRUPS FOR FASTENING IN WALL AREAS |
| US4655318A (en) * | 1985-10-04 | 1987-04-07 | H. Bowen Company, Inc. | Step assembly |
| FR2588912B1 (en) * | 1985-10-23 | 1988-05-13 | Materiel Securite Urb | SEALING STEP AND FASTENING METHOD |
| DE9016700U1 (en) * | 1990-12-10 | 1991-02-28 | Chemieschutz Gesellschaft Fuer Saeurebau Mbh, 6140 Bensheim, De | |
| US5386784A (en) * | 1993-06-07 | 1995-02-07 | Meier; Charles W. | Railroad car hand hold assembly |
| US20160252122A1 (en) * | 2013-10-30 | 2016-09-01 | As Connector | Locking device |
-
1971
- 1971-11-19 AT AT1000571A patent/AT315754B/en not_active IP Right Cessation
-
1972
- 1972-11-01 CH CH1609572A patent/CH556466A/en not_active IP Right Cessation
- 1972-11-06 CA CA155,769A patent/CA956153A/en not_active Expired
- 1972-11-08 DE DE19722254550 patent/DE2254550C3/en not_active Expired
- 1972-11-13 GB GB5223972A patent/GB1374178A/en not_active Expired
- 1972-11-14 NL NL7215371A patent/NL7215371A/xx not_active Application Discontinuation
- 1972-11-15 HU HUZE000393 patent/HU165473B/hu unknown
- 1972-11-16 DK DK570672A patent/DK129868B/en unknown
- 1972-11-17 IT IT3182972A patent/IT984608B/en active
- 1972-11-17 DD DD16691772A patent/DD99632A5/xx unknown
- 1972-11-17 NO NO420272A patent/NO133633C/no unknown
- 1972-11-18 ES ES1972185822U patent/ES185822Y/en not_active Expired
-
1977
- 1977-11-28 CA CA291,850A patent/CA1057540B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2254550A1 (en) | 1973-05-30 |
| AT315754B (en) | 1974-06-10 |
| IT984608B (en) | 1974-11-20 |
| NL7215371A (en) | 1973-05-22 |
| NO133633B (en) | 1976-02-23 |
| CH556466A (en) | 1974-11-29 |
| DK129868C (en) | 1975-05-05 |
| DE2254550B2 (en) | 1974-07-04 |
| HU165473B (en) | 1974-08-28 |
| GB1374178A (en) | 1974-11-20 |
| CA956153A (en) | 1974-10-15 |
| NO133633C (en) | 1976-06-02 |
| ES185822Y (en) | 1974-07-01 |
| DK129868B (en) | 1974-11-25 |
| DE2254550C3 (en) | 1975-03-06 |
| DD99632A5 (en) | 1973-08-12 |
| ES185822U (en) | 1973-10-16 |
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| US3740083A (en) | Mounting support for climbing elements | |
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