GB2473024A - Access platform for use in hollow shafts, especially prefabricated concrete elevator shafts - Google Patents
Access platform for use in hollow shafts, especially prefabricated concrete elevator shafts Download PDFInfo
- Publication number
- GB2473024A GB2473024A GB0914976A GB0914976A GB2473024A GB 2473024 A GB2473024 A GB 2473024A GB 0914976 A GB0914976 A GB 0914976A GB 0914976 A GB0914976 A GB 0914976A GB 2473024 A GB2473024 A GB 2473024A
- Authority
- GB
- United Kingdom
- Prior art keywords
- platform
- sections
- shaft
- shafts
- heads
- 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.)
- Withdrawn
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 7
- 230000037431 insertion Effects 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229940028444 muse Drugs 0.000 description 1
- GMVPRGQOIOIIMI-DWKJAMRDSA-N prostaglandin E1 Chemical compound CCCCC[C@H](O)\C=C\[C@H]1[C@H](O)CC(=O)[C@@H]1CCCCCCC(O)=O GMVPRGQOIOIIMI-DWKJAMRDSA-N 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000009416 shuttering Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0087—Devices facilitating maintenance, repair or inspection tasks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/36—Scaffolds for particular parts of buildings or buildings of particular shape, e.g. for stairs, cupolas, domes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/18—Scaffolds essentially supported by building constructions, e.g. adjustable in height supported by cantilevers or other provisions mounted in openings in the building, e.g. window openings
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/04—Means for fastening, supporting, or bracing scaffolds on or against building constructions
- E04G5/046—Means for fastening, supporting, or bracing scaffolds on or against building constructions for fastening scaffoldings on walls
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Types And Forms Of Lifts (AREA)
Abstract
A platform which can be used in the erection of e.g. prefabricated concrete lift shafts, includes a pair of telescopically engaged sliding platform sections 1, 2, opposite ends of which are provided with pairs of projecting locking heads 7 for engagement with apertures C which are preformed in opposite sides of the shaft. The heads 7 may be T-shaped and carried on screw-threaded rods 6 which are provided with turning handles 8. The apertures may be T-section channels. A demountable safety barrier 11 including a handrail (14 fig 2) may be releasably secured to one longitudinal side of the outer platform section 1.
Description
ERECTION PLATFORM FOR USE IN HOLLOW SHAFTS
TECHNICAL FIELD OF THE INVENTION
This invention relates o a pIaform for use in hollow shafts such as prefabricated lift shafts, chimneys and such like.
BACKGROUND
(0 GB 2 363 110 A discloses a lift shaft which is prefabricated in (\J reinforced concrete sections which are stacked one upon another. Each section has four integrally-formed sides. The sections include alternate door sections and shorter spacer sections, the door sections having a recanguIar door aperture formed in one side. The opposed op and bottom faces of the stacked sections are provided with projecting bars and sockets.
The sections are formed by moulding within inner and outer shuttering secured o a vibrating table.
In the consrucion of buildings there is often Iimied access for equipment. Work is often carried ou on the shaft during erection, which necessiaes hiring mobile eIevaing work platforms or the consrucion of temporary scaffolding. This is costly, time consuming, and increases the build cost. In addition, the scaffolding muse be tied in o the shaft W comply with wind loading requirements, which further complicates the consrucion.
The present invenUon seeks o provide a new and inventive way of erecting such shafts during consrucion, which is quick and simple o install and remove, and avoids equipment costs and access problems.
SUMMARY OF THE INVENTION
The present invention proposes a platform for use in a hollow (0 shaft, which includes a pair of telescopically engaged sliding platform sections, and opposite ends of the wo sections are each provided with a pair of projecting locking heads for engagement with apertures which are preformed in opposite sides of the shaft.
The locking heads may be T-shaped for insertion into 1-shaped channels in opposite sides of the shaft. They are preferably carried by rods which are screw-threaded for adjusting the distance between each locking head and the respective platform section. The rods may be provided with projecting turning handles.
Preferably a safety barrier is secured o one longitudinal side of the telescopic platform sections. The barrier may be releasably secured o the outer platform section.
BRIEF DESCRIPTION OF THE DRAWINGS
The following description and the accompanying drawings referred o therein are included by way of non-limiting example in order o illusrae how the invention may be pu into practice.
In the drawings: Figure 1 is a plan view of an erection platform in accordance with the invention; (0 Figure 2 is a side view of the platform; and (\J Figure 3 is a vertical section through part of a shaft wall showing how the platform is engaged with the shaft.
DETAILED DESCRIPTION OF THE DRAWINGS
The platform o be described may be formed of a lighweigh material such as aluminium. Referring firstly o Fig. 1, the platform includes a pair of telescopically engaged rectangular sliding platform sections 1 and 2, namely a hollow outer section 1 and an inner section 2 which slides telescopically within the other o enable the length of the platform o be adjusted.
Opposite ends 3 and 4 of the wo sliding sections are each provided with a pair of projecting mutually-spaced rods 6 which each carry a T-shaped locking head 7. The rod 6 is screw-threaded into the respective platform section such that the distance by which the locking head 7 projects from the platform section can be continuously adjusted by roaing the rod 6 by means of a radially projecting turning handle 8. The handle 8 projects in the same plane as the T-shaped head 7, the advantage of which will soon become apparent.
When the platform is installed within a rectangular shaft, such as a prefabricated lift shaft, one longitudinal side 9 of the platform is normally positioned close o one wall Wi of the (0 shaft. For safety reasons the opposite longitudinal side 10 of the platform is provided with a demounable barrier 11, best seen in Fig. 2. The barrier 11 comprises three uprights 12, which are bolted or otherwise releasably secured to one side of the outer platform section 1. A mid rail 13 is secured perpendicularly o the uprights, pare way between the section 1 and a handrail 14 secured o the op of the uprights.
The platform is secured o opposite side walls W2 and W3 of the shaft by locating the locking heads 7 into preformed horizontal T-secion fixing channels C which, as shown in Fig. 3, are case into the shaft during manufacture. By sliding the inner section 2 within the outer 1 the distance between the pairs of locking heads 7 can be adjusted to span the width of the shaft. Small individual adjustments to the position of the locking heads can be made by screwing the rods 6 in or ou as required, e.g. to allow for casting tolerances. When the handles 8 are horizontal the heads 7 can be inserted through the mouths of the channels C, but when the handles are rotated o extend vertically, upwards or downwards, the T-shaped heads rotate in the channels to lock the heads in position. It is immediately apparent that the heads are locked by inspecting the position of the handles 8.
In the case of a prefabricated lift shaft formed of stacked i-sections the platform can be fitted to the precast sections on the ground prior to lifting the sections into position. When construction of the shaft is complete the platforms can be (0 removed from the top down while standing on the platform below, rotating the handles 8 to withdraw the heads 7 from the cast channels.
Whilst the above description places emphasis on the areas which are believed to be new and addresses specific problems which have been identified, it is intended that the features disclosed herein may be used in any combination which is capable of providing a new and useful advance in the art.
Claims (7)
- CLAIMS1. A platform for use in a hollow shaft, which includes a pair of telescopically engaged sliding platform sections, and opposite ends of the wo sections are each provided with a pair of projecting locking heads for engagement with aperWres which are preformed in opposite sides of the shaft.
- 2. A platform according o Claim 1 in which the locking heads are T-shaped for insertion into T-shaped channels in opposite sides of the shaft.
- 3. A plafform according o Claim 1 or 2 in which the locking heads are carried by rods which are screw-threaded for (0 adjusting the distance between each locking head and the (\J respective platform section.
- 4. A platform according to Claim 3 in which the rods are provided with projecting Wrning handles.
- 5. A platform according to any preceding claim in which a barrier is secured o one longitudinal side of the telescopic platform sections.
- 6. A platform according o Claim 5 in which the barrier is releasably secured o the outer platform section.
- 7. A pIaform subsaniaIIy as described with reference o the drawings. (0 (\J
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0914976A GB2473024A (en) | 2009-08-26 | 2009-08-26 | Access platform for use in hollow shafts, especially prefabricated concrete elevator shafts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0914976A GB2473024A (en) | 2009-08-26 | 2009-08-26 | Access platform for use in hollow shafts, especially prefabricated concrete elevator shafts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0914976D0 GB0914976D0 (en) | 2009-09-30 |
| GB2473024A true GB2473024A (en) | 2011-03-02 |
Family
ID=41172008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0914976A Withdrawn GB2473024A (en) | 2009-08-26 | 2009-08-26 | Access platform for use in hollow shafts, especially prefabricated concrete elevator shafts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2473024A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2289770A (en) * | 1969-12-11 | 1972-06-08 | Crooks Frederick | Improvements inthe construction of buildings |
| JPS5364460U (en) * | 1976-11-01 | 1978-05-31 | ||
| JPH04238961A (en) * | 1991-01-10 | 1992-08-26 | Ohbayashi Corp | Construction method for concrete wall body |
| WO2000007923A1 (en) * | 1998-08-06 | 2000-02-17 | Otis Elevator Company | A device and method for installing elevator equipment |
| JP2006044843A (en) * | 2004-08-02 | 2006-02-16 | Mitsubishi Electric Building Techno Service Co Ltd | Working bench scaffold for hoistway |
| JP2007154540A (en) * | 2005-12-06 | 2007-06-21 | Japan Steels International Inc | Temporary scaffolding unit |
| CN101387152A (en) * | 2008-10-20 | 2009-03-18 | 中建三局第一建设工程有限责任公司 | Tool type scaffold for elevator well |
-
2009
- 2009-08-26 GB GB0914976A patent/GB2473024A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2289770A (en) * | 1969-12-11 | 1972-06-08 | Crooks Frederick | Improvements inthe construction of buildings |
| JPS5364460U (en) * | 1976-11-01 | 1978-05-31 | ||
| JPH04238961A (en) * | 1991-01-10 | 1992-08-26 | Ohbayashi Corp | Construction method for concrete wall body |
| WO2000007923A1 (en) * | 1998-08-06 | 2000-02-17 | Otis Elevator Company | A device and method for installing elevator equipment |
| JP2006044843A (en) * | 2004-08-02 | 2006-02-16 | Mitsubishi Electric Building Techno Service Co Ltd | Working bench scaffold for hoistway |
| JP2007154540A (en) * | 2005-12-06 | 2007-06-21 | Japan Steels International Inc | Temporary scaffolding unit |
| CN101387152A (en) * | 2008-10-20 | 2009-03-18 | 中建三局第一建设工程有限责任公司 | Tool type scaffold for elevator well |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0914976D0 (en) | 2009-09-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |