GB1194489A - Improvements in or relating to Staircases - Google Patents
Improvements in or relating to StaircasesInfo
- Publication number
- GB1194489A GB1194489A GB34807/68A GB3480768A GB1194489A GB 1194489 A GB1194489 A GB 1194489A GB 34807/68 A GB34807/68 A GB 34807/68A GB 3480768 A GB3480768 A GB 3480768A GB 1194489 A GB1194489 A GB 1194489A
- Authority
- GB
- United Kingdom
- Prior art keywords
- staircase
- treads
- frame members
- july
- vehicle
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
- B61D23/00—Construction of steps for railway vehicles
- B61D23/02—Folding steps for railway vehicles, e.g. hand or mechanically actuated
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
- Ladders (AREA)
Abstract
1,194,489. Railway vehicle folding steps. UNITED AIRCRAFT CORP. 22 July, 1968 [24 July, 1967], No. 34807/68. Heading B7L. A collapsible staircase which occupies either a platform forming position inside a railway vehicle, Fig. 3, or a step-forming position extending outwardly from the vehicle, Fig. 2, comprises treads 12 and 14 and risers 16 and 18 pivoted together at 40 and 28 with the whole pivoted at 22 to the vehicle door sill 58, there being attached on either side of the treads, frame members 26 and 30 with the treads connected by arms 34 such that in the position of Fig. 2 the lower tread 12 is suspended by a parallelogram linkage, and the frame members 26 being connected by linkage 44, 42 to a gear wheel 52 rotated by a chain 54 from a drive motor 46 for moving the staircase between its two positions. Microswitches 68 and 72 limit the movement of the staircase by cutting out the motor when contacted by link 42. The platform in the Fig. 3 position is formed by tread 12 and riser 16 and a support by frames 32 attached to frame members 30.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US655357A US3408959A (en) | 1967-07-24 | 1967-07-24 | Folding staircase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1194489A true GB1194489A (en) | 1970-06-10 |
Family
ID=24628567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34807/68A Expired GB1194489A (en) | 1967-07-24 | 1968-07-22 | Improvements in or relating to Staircases |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US3408959A (en) |
| BE (1) | BE718213A (en) |
| BR (1) | BR6800872D0 (en) |
| CH (1) | CH491774A (en) |
| DE (1) | DE1780007C3 (en) |
| ES (1) | ES157335Y (en) |
| FR (1) | FR1578286A (en) |
| GB (1) | GB1194489A (en) |
| NL (1) | NL6810466A (en) |
| SE (1) | SE334175B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2270948A (en) * | 1992-09-26 | 1994-03-30 | Jones Garrard Limited | Retractable stairs |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3580613A (en) * | 1969-02-27 | 1971-05-25 | Walter A Northrop | Bumper combining hitch and step |
| US3572754A (en) * | 1969-07-11 | 1971-03-30 | Gen Motors Corp | Vehicle step arrangement |
| US4124098A (en) * | 1977-10-04 | 1978-11-07 | General Motors Corporation | Wheelchair lift device |
| US4124099A (en) * | 1977-10-04 | 1978-11-07 | General Motors Corporation | Wheelchair lift device |
| US4174115A (en) * | 1977-12-27 | 1979-11-13 | Youngblood John W | Motorized bi-fold stepwell cover |
| US5230288A (en) * | 1990-11-29 | 1993-07-27 | Renfe | Entering and exiting step system for vehicles with swingable platform for wheelchair bound passengers |
| US5150659A (en) * | 1990-11-29 | 1992-09-29 | Renfe | Entering and exiting step system for vehicles with two step pivotal support for accommodating platforms of varying heights |
| US5505476A (en) * | 1993-08-23 | 1996-04-09 | Kwikee Products Co., | Triple manual folding steps |
| US6213486B1 (en) * | 1999-04-05 | 2001-04-10 | Kwikee Products Co., Inc. | Step assembly with concealed lower tread |
| WO2001005639A2 (en) | 1999-07-08 | 2001-01-25 | Aai Corporation | Passenger rail car sliding door with high platform threshold |
| US6578664B1 (en) * | 2000-11-22 | 2003-06-17 | Stuart Doherty | Window guard with quick release latching system |
| US20070277808A1 (en) * | 2006-05-30 | 2007-12-06 | Bean Patricia J | Spark arresting incinerator |
| US8011474B2 (en) * | 2006-10-30 | 2011-09-06 | Caterpillar Inc. | Powered access device |
| US8316595B2 (en) | 2010-04-06 | 2012-11-27 | Burford Tyrus S | Collapsible staircase |
| US8075008B1 (en) * | 2010-10-27 | 2011-12-13 | Hwh Corporation | Retractable staircase for a recreational vehicle |
| US8668217B2 (en) | 2011-12-15 | 2014-03-11 | Michael P. Ziaylek | Automated retractable step apparatus utilizing over-center locking mechanism |
| US9957720B1 (en) | 2015-11-25 | 2018-05-01 | Majic Stairs Inc. | Retractable staircase and method |
| CN109017844B (en) * | 2018-06-21 | 2020-06-23 | 中车株洲电力机车有限公司 | Pedal device and bogie with same |
| US11945701B1 (en) | 2020-11-13 | 2024-04-02 | Majic Stairs Inc. | Lift |
| CN112590511B (en) * | 2020-12-29 | 2022-09-16 | 北汽福田汽车股份有限公司 | Door module and vehicle |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1397294A (en) * | 1921-11-15 | Automatic raising and lowering steps | ||
| US976195A (en) * | 1910-05-12 | 1910-11-22 | Roger W Lomax | Folding car-step. |
| US1802926A (en) * | 1929-11-08 | 1931-04-28 | Nat Pneumatic Co | Trapdoor and step control mechanism for passenger cars |
| US2564954A (en) * | 1948-04-26 | 1951-08-21 | David E Brelsford | Retractable stairs |
| US2951454A (en) * | 1957-04-08 | 1960-09-06 | Pullman Standard Car Mfg Co | Vehicle folding step assembly |
-
1967
- 1967-07-24 US US655357A patent/US3408959A/en not_active Expired - Lifetime
-
1968
- 1968-07-18 BE BE718213D patent/BE718213A/xx unknown
- 1968-07-19 FR FR1578286D patent/FR1578286A/fr not_active Expired
- 1968-07-22 SE SE09982/68A patent/SE334175B/xx unknown
- 1968-07-22 GB GB34807/68A patent/GB1194489A/en not_active Expired
- 1968-07-23 DE DE1780007A patent/DE1780007C3/en not_active Expired
- 1968-07-24 ES ES1968157335U patent/ES157335Y/en not_active Expired
- 1968-07-24 NL NL6810466A patent/NL6810466A/xx unknown
- 1968-07-24 CH CH1110668A patent/CH491774A/en not_active IP Right Cessation
- 1968-07-24 BR BR200872/68A patent/BR6800872D0/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2270948A (en) * | 1992-09-26 | 1994-03-30 | Jones Garrard Limited | Retractable stairs |
| GB2270948B (en) * | 1992-09-26 | 1996-07-24 | Jones Garrard Limited | Retractable stairway |
Also Published As
| Publication number | Publication date |
|---|---|
| ES157335Y (en) | 1971-05-16 |
| FR1578286A (en) | 1969-08-14 |
| DE1780007A1 (en) | 1972-01-05 |
| DE1780007C3 (en) | 1974-03-21 |
| NL6810466A (en) | 1969-01-28 |
| DE1780007B2 (en) | 1973-08-23 |
| SE334175B (en) | 1971-04-19 |
| BR6800872D0 (en) | 1973-02-27 |
| CH491774A (en) | 1970-06-15 |
| ES157335U (en) | 1970-11-01 |
| US3408959A (en) | 1968-11-05 |
| BE718213A (en) | 1968-12-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |