WO2003008257A1 - Safety device for a tractor/trailer unit - Google Patents
Safety device for a tractor/trailer unit Download PDFInfo
- Publication number
- WO2003008257A1 WO2003008257A1 PCT/GB2002/003254 GB0203254W WO03008257A1 WO 2003008257 A1 WO2003008257 A1 WO 2003008257A1 GB 0203254 W GB0203254 W GB 0203254W WO 03008257 A1 WO03008257 A1 WO 03008257A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- safety device
- pin
- tractor
- trailer
- release mechanism
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D53/00—Tractor-trailer combinations; Road trains
- B62D53/04—Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
- B62D53/08—Fifth wheel traction couplings
- B62D53/10—Fifth wheel traction couplings with means for preventing accidental uncoupling
Definitions
- This invention relates to a safety device, and more particularly to a
- a tractor/trailer unit comprises a tractor to provide the motive power
- the trailer is connected to the tractor through the intermediary
- a simple pin or bolt may be provided to maintain the release
- the trailer can roll away from the tractor, particularly if the tractor/
- trailer unit is on an incline. This can, as will be appreciated, have
- the present invention therefore seeks to provide a safety device for use
- said device including means movable from a first position to a second
- said means will be a pin which is movable from a first
- said release mechanism may be operated.
- Said pin will be movable from its first position to its second position
- Said pin will preferably carry a piston which is movable with the said
- Figure 1 is a perspective view of a safety device in accordance with a first embodiment of the invention
- Figure 2 is a sectional elevation through the safety device of Figure 1;
- Figure 3 is a perspective view of a fifth wheel of a tractor/trailer unit
- Figure 4 is an enlarged perspective view of an alternative arrangement
- Figure 5 is a view similar to Figure 2, but showing a second
- Figure 6 is a perspective view of part of Figure 5.
- the safety device is not shown in Figure 3.
- the safety device 2 referring now to both Figures 1 and 2, comprises
- an upper body 10 and a lower body 12 the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an upper body 10 and a lower body 12, the upper body 10 having an
- the lower body 12 is generally hexagonal (see Figure 1) in
- nylon seal 24 is held in position by a nut 26, the nut being removable
- the pin 20 includes a piston 28 which is movable vertically (in the drawing) by the amount indicated by arrow 'A', a nylon seal 30 being
- the pin 20 is spring-loaded by means of a spring 32, and a
- buffer 34 is provided in the lower body 12 to limit the downward
- the upper body 10 has an air connection 36, and the lower body 12
- the fifth wheel 8 has associated therewith a
- release mechanism consisting of a first arm 40 and a second arm 42
- bracket 4 has a through-hole 50 therein, and includes a handle
- the upper section 4 A of the bracket 4 has a through-hole 4B
- the pin 20 is tapered so that during movement of the arm 40 the pin
- the arm 42A - instead of the arm 40 A - is provided with a through-hole
- this through-hole 54 being brought into correspondence with the through-hole 4B in the bracket 4 during movement of the two arms.
- the body 100 is a body 100 and end caps 102 and 104.
- the body 100 is a body 100 and end caps 102 and 104.
- caps may be secured to the body 100 so as to form a composite unit
- the body 100 has an air
- connection 116, and the end cap 104 has a vent 118 which serve the
- the end cap 102 has a through-bore 102A therein, and the end cap
- a pin 120 Located in the composite unit 114 is a pin 120 which carries a piston
- the pin 120 is spring-loaded by means of a coil spring 130 in
- the upper end (in the drawing) of the pin 120 is
- a seal 132 is provided between the pin 120 and the end cap 102.
- the invention provides a safety device for use in association with
- the driver of the tractor/trailer unit cannot forget to apply the braking
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Regulating Braking Force (AREA)
- Braking Systems And Boosters (AREA)
- Air Bags (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0403078A GB2393702B (en) | 2001-07-17 | 2002-07-16 | Release mechanism for a tractor/trailer unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0117343.4 | 2001-07-17 | ||
GB0117343A GB0117343D0 (en) | 2001-07-17 | 2001-07-17 | Safety device |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003008257A1 true WO2003008257A1 (en) | 2003-01-30 |
Family
ID=9918607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2002/003254 WO2003008257A1 (en) | 2001-07-17 | 2002-07-16 | Safety device for a tractor/trailer unit |
Country Status (2)
Country | Link |
---|---|
GB (2) | GB0117343D0 (en) |
WO (1) | WO2003008257A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2623753A (en) * | 1950-09-29 | 1952-12-30 | Ples M Thomas | Tractor-trailer coupling mechanism |
US2811374A (en) * | 1955-03-28 | 1957-10-29 | Fuschi Antonio Torre | Tractor-trailer king-pin lock safety means |
FR2794687A1 (en) * | 1999-06-14 | 2000-12-15 | Asca Carrossier Constructeur | ROAD ASSEMBLY COMPRISING A PNEUMATIC UNLOCKING SADDLE |
-
2001
- 2001-07-17 GB GB0117343A patent/GB0117343D0/en not_active Ceased
-
2002
- 2002-07-16 GB GB0403078A patent/GB2393702B/en not_active Expired - Fee Related
- 2002-07-16 WO PCT/GB2002/003254 patent/WO2003008257A1/en not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2623753A (en) * | 1950-09-29 | 1952-12-30 | Ples M Thomas | Tractor-trailer coupling mechanism |
US2811374A (en) * | 1955-03-28 | 1957-10-29 | Fuschi Antonio Torre | Tractor-trailer king-pin lock safety means |
FR2794687A1 (en) * | 1999-06-14 | 2000-12-15 | Asca Carrossier Constructeur | ROAD ASSEMBLY COMPRISING A PNEUMATIC UNLOCKING SADDLE |
Also Published As
Publication number | Publication date |
---|---|
GB0403078D0 (en) | 2004-03-17 |
GB2393702B (en) | 2005-02-16 |
GB0117343D0 (en) | 2001-09-05 |
GB2393702A (en) | 2004-04-07 |
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