WO2007129054A1 - Flat bed trailer - Google Patents
Flat bed trailer Download PDFInfo
- Publication number
- WO2007129054A1 WO2007129054A1 PCT/GB2007/001624 GB2007001624W WO2007129054A1 WO 2007129054 A1 WO2007129054 A1 WO 2007129054A1 GB 2007001624 W GB2007001624 W GB 2007001624W WO 2007129054 A1 WO2007129054 A1 WO 2007129054A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- trailer
- restraining
- flat bed
- bars
- retaining means
- Prior art date
Links
- 230000000452 restraining effect Effects 0.000 claims abstract description 108
- 230000008878 coupling Effects 0.000 claims abstract description 23
- 238000010168 coupling process Methods 0.000 claims abstract description 23
- 238000005859 coupling reaction Methods 0.000 claims abstract description 23
- 230000000717 retained effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 4
- 238000009420 retrofitting Methods 0.000 claims description 3
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P7/00—Securing or covering of load on vehicles
- B60P7/06—Securing of load
- B60P7/135—Securing or supporting by load bracing means
- B60P7/15—Securing or supporting by load bracing means the load bracing means comprising a movable bar
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
- B60P3/062—Especially adapted for carrying tracked vehicles, e.g. public works machinery, battle tanks, snowmobiles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/06—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles
- B60P3/07—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying vehicles for carrying road vehicles
- B60P3/073—Vehicle retainers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D63/00—Motor vehicles or trailers not otherwise provided for
- B62D63/06—Trailers
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/003—Devices for transporting the soil-shifting machines or excavators, e.g. by pushing them or by hitching them to a tractor
Definitions
- This invention relates to flat bed trailers for transporting heavy machinery. It is well known to transport items of heavy machinery, such as mechanical diggers and forklift devices, to a site of use using a flat bed trailer.
- a flat bed trailer for transporting heavy machinery including: a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls; a plurality of restraining bars disposable substantially laterally across the trailer from one side wall to the other side wall to restrain an item of heavy machinery when positioned in the trailer; and at least one bar retaining means for releasably retaining at least one of the restraining bars in its restraining position, in which at least some of the bar retaining means are disposed on the side walls.
- flat bed trailers do not have high sided walls, although the flat bed trailers of the invention have side walls, which are low walls, typically extending less than one metre and commonly less than 50 cm above the level of the trailer floor.
- the item of heavy machinery may be a plant hire item, such as a mechanical digger or forklift device.
- the item of heavy machinery might utilise caterpillar trackers, or might be a wheeled vehicle.
- the bar retaining means releasably retain all of the restraining bars in their restraining positions.
- a bar of permanently fixed position as one of the restraining bars.
- the flat bed trailer has a pair of spaced apart restraining bars.
- the pair of restraining bars are spaced by at least 750mm.
- One or more of the restraining bars may be fully detachable from the trailer. In preferred embodiments, all of the restraining bars are fully detachable from the trailer.
- One or more of the restraining bars may be permanently fixed to the trailer whilst being releasable from its restraining position.
- a bar may be swingable, pivotable or otherwise moveable with respect to a permanent fixture so that the bar can be brought into or out of its restraining position.
- the flat bed trailer may include one or more restraining bars which are fully detachable from the trailer and one or more restraining bars which are permanently fixed to the trailer whilst being releasable from its restraining position.
- the flat bed trailer includes one restraining bar which is fully detachable from the trailer and one restraining bar which is permanently fixed to the trailer whilst being releasable from its restraining position.
- the bar retaining means include a plurality of bar receiving elements, such as collars and jaws.
- the flat bed trailer includes a pair of longitudinally extending side walls, and at least some of the bar retaining means are disposed on the side walls.
- the trailer may further include at least a pair of brackets, each located on a side wall, and at least some of the bar retaining means may be disposed on the brackets.
- each bracket is located on top of a side wall, and at least some of the bar retaining means are disposed on top of the brackets.
- the brackets are releasably coupled to the side walls, most preferably by bolts.
- the bar retaining means includes at least one bar retaining member which is coupleable with a restraining bar and engageable with another part of the trailer, preferably the floor of the trailer.
- bar receiving elements are employed, and the bar retaining member provides additional support for a bar.
- the flat bed trailer further includes a plurality of tracks disposed substantially longitudinally on the floor of the trailer for restraining the item of machinery when disposed in the trailer.
- the tracks provide restraint against sideways motion of the item of heavy machinery and aid in locating the item in the trailer.
- a flat bed trailer for transporting a mechanical digger having a bucket attached to a moveable arm including: a floor; a plurality of wheels suitable for travel over roads; coupling means for coupling the trailer to a towing vehicle; a plurality of restraining bars disposable substantially laterally across the trailer to restrain an item of heavy machinery when positioned in the trailer; at least one bar retaining means for releasably retaining at least one of the restraining bars in its restraining position; and a receptacle disposed on the coupling means for receiving and restraining the bucket of the mechanical digger.
- flat bed trailers do not have high-sided walls, although it is possible for flat bed trailers to have low walls, typically extending less than one metre and commonly less than 50
- 'bucket' relates to the scoop of a mechanical digger which is used for excavating purposes.
- the bar retaining means releasably retain all of the restraining bars in their restraining positions.
- a bar of permanently fixed position as one of the restraining bars.
- the flat bed trailer has a pair of spaced apart restraining bars.
- the flat bed trailer may include a pair of spaced apart restraining bars, the bars being spaced so that in use one of the restraining bars restrains a front portion of the mechanical digger, and the other one of the pair of restraining bars restrains a rear portion of the mechanical digger.
- the pair of restraining bars are spaced by at least 750mm.
- One or more of the restraining bars may be fully detachable from the trailer. In preferred embodiments, all of the restraining bars are fully detachable from the trailer.
- One or more of the restraining bars may be permanently fixed to the trailer whilst being releasable from its restraining position.
- a bar may be swingable, pivotable or otherwise moveable with respect to a permanent fixture so that the bar can be brought into or out of its restraining position.
- the flat bed trailer may include one or more restraining bars which are fully detachable from the trailer and one or more restraining bars which are permanently fixed to the trailer whilst being releasable from its restraining position.
- the flat bed trailer includes one restraining bar which is fully detachable from the trailer and one restraining bar which is permanently fixed to the trailer whilst being releasable from its restraining position.
- the bar retaining means include a plurality of bar receiving elements, such as collars and jaws.
- the flat bed trailer may include a pair of longitudinally extending side walls, and at least some of the bar retaining means may be disposed on the side walls. Typically, the side walls extend at least 300mm above the level of the trailer floor.
- the plurality of restraining bars may be disposable substantially laterally across the trailer from one side wall to the other side wall.
- the trailer may further include at least a pair of brackets, each located on a side wall, and at least some of the bar retaining means may be disposed on the brackets.
- each bracket is located on top of a side wall, and at least some of the bar retaining means are disposed on top of the brackets.
- the brackets are releasably coupled to the side walls, most preferably by bolts.
- the receptacle includes a frame.
- other receptacles such as a box, might be envisaged.
- the receptacle defines a substantially cuboid internal volume in which the bucket is received.
- the bar retaining means includes at least one bar retaining member which is coupleable with a restraining bar and engageable with another part of the trailer, preferably the floor of the trailer.
- bar receiving elements are employed, and the bar retaining member provides additional support for a bar.
- the flat bed trailer further includes a plurality of tracks disposed substantially longitudinally on the floor of the trailer for restraining the item of machinery when disposed in the trailer.
- the tracks provide restraint against sideways motion of the item of heavy machinery and aid in locating the item in the trailer.
- a kit of parts for retrofitting to a flat bed trailer including at least a pair of brackets, each for locating on a side wall of a flat bed trailer; means for coupling the brackets to the side walls; at least one bar retaining means disposed on the brackets; and a plurality of restraining bars at least one of which can be releasably retained in the bar retaining means so that the restraining bars are disposed substantially laterally with respect to the brackets when the brackets are arranged in parallel.
- kit of parts may further include a receptacle for receiving and restraining the bucket of a mechanical digger.
- a method of restraining an item of heavy machinery including the steps of: providing a flat bed trailer for transporting an item of heavy machinery including a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls; a plurality of restraining bars; and at least one bar retaining means, in which at least some of the bar retaining means are disposed on the side walls; positioning an item of heavy machinery in the trailer; restraining the item of heavy machinery by disposing the restraining bars substantially laterally across the trailer from one side wall to the other side wall, at least one of the restraining bars being releasably retained in its restraining position by the bar retaining means.
- a method of restraining a mechanical digger having a bucket attached to a moveable arm including the steps of: providing a flat bed trailer for transporting a mechanical digger including a floor; a plurality of wheels suitable for travel over roads; coupling means for coupling the trailer to a towing vehicle; a plurality of restraining bars; at least one bar retaining means; and a receptacle disposed on the coupling means; positioning the mechanical digger in the trailer; and restraining the mechanical digger by disposing the restraining bars substantially laterally across the trailer, at least one of the restraining bars being releasably retained in its restraining position by the bar retaining means, and positioning the bucket in the receptacle so that the receptacle restrains said bucket.
- Figure 1 is a perspective view of a flat bed trailer of the invention
- Figure 2 shows (a) a side view and (b) a front view of a jaw;
- Figure 3 shows a side view of a collar;
- Figure 4 shows (a) a front view and (b) a plan view of a front-most restraining bar
- Figure 5 shows a plan view of a pair of guide bars
- Figure 6 shows the floor of a flat bed trailer
- Figure 7 is another perspective view of a flat bed trailer of the invention.
- FIG. 1 shows a flat bed trailer 10 of the invention having a mechanical digger 12 positioned thereon.
- the main body of the flat bed trailer 10 is of conventional design, having road-engaging wheels 14, and low, parallel sidewalls 16,18.
- the flat bed trailer 10 further comprises a releasable back wall 20 permitting positioning of the mechanical digger 12 in the trailer 10, and a front coupling section 22 enabling the flat bed trailer 10 to be coupled to a suitable transportation vehicle such as a van or lorry.
- the flat bed trailer 10 further comprises a pair of brackets 24,26; the bracket 24 is mounted by way of bolts on to the top of the sidewall 16, and the bracket 26 is mounted by way of bolts on to the side wall 18.
- the bracket 24 has a pair of spaced apart jaws 28 upstanding therefrom, and the bracket 26 has a pair of spaced apart collars 30 upstanding therefrom.
- a pair of spaced apart bars 32,34 extend sideways across the flat bed trailer 10. One end of each bar 32,34 is located in a collar 30, and the other end of each bar 32,34 is located in a jaw 28, this positioning acting to secure the bars 32,34 in place.
- a securing pin 36 disposed near to the sidewall 16 further restrains the motion of the front-most bar 34.
- a further securing pin disposed near to the other sidewall 18 also performs this function.
- the flat bed trailer 10 further comprises a receptacle 38 which is located on the front coupling section 22.
- the receptacle 38 receives the bucket 40 of the mechanical digger 12, the bucket being attached to a moveable arm 42.
- the receptacle 38 acts to restrain the bucket 40 during transportation of the digger 12.
- Figures 2 to 4 show some of the features depicted in Figure 1 in more detail, and identical numerals are used to depict such shared features.
- Figure 2 shows a jaw 28 in more detail.
- the jaw 28 defines a rectangular groove 38 which is sized to receive a bar 32,34.
- the jaw 28 has an upright wall 28a having an aperture 28b formed therein which is sized to receive a locating member formed on a bar 32,34.
- the jaw 28 further comprises an upright flat 28c having an aperture 28d formed therein.
- the aperture 28d secures one end of a chain, and the other end of the chain (not shown) is connected to a lynch pin (not shown) which, in use, is positioned in a receiving aperture formed in the retaining member of the bar.
- Figure 3 shows a collar 30 in more detail. It can be seen that the collar
- FIG. 30 defines an aperture 30a which is sized to receive one end of a bar 32,34.
- Figure 4 shows the front-most bar 34 in more detail.
- the bar 34 is stepped, having a dog leg arrangement which raises the height of the bar in its middle section. This increases the clearance of the bar in the region of contact or near- contact with the item of heavy machinery disposed in the trailer 10, and enables a better fit to the majority of heavy items commonly transported. Additionally, the stepped portion provides additional restraining surfaces 34a for preventing unwanted movement of the item of heavy machinery.
- the front-most bar 34 has a locating member 34b formed at one end thereof which in use is positioned in the aperture 28b of the respective jaw 28.
- the locating member 34b has a vertical bore 34c formed therein for receiving a lynch pin.
- the front-most bar 34 further comprises channels 34d, which may be in the form of external flutes, for receiving the securing pins 36.
- Figure 5 shows a pair of guide bars 50 having a main elongate section 50a and a shorter elongate section 50b which is angled with respect to the main elongate section 50a.
- the guide bars 50 are disposed longitudinally on the floor 60 of the trailer 10, with the angled, shorter elongate sections 50b positioned adjacent the back wall of the trailer.
- the guide bars 50 provide restraint against sideways motion of the item of heavy machinery during transportation, and have an additional advantage in aiding the location of the item of heavy machinery in the trailer.
- Figure 7 shows the flat bed trailer 10 of Figure 1 in somewhat more detail.
- the receptacle 38 is a framework arrangement comprising vertically, horizontally and diagonally disposed frame members.
- the front portion of the receptacle 38 does not include the uppermost horizontal frame member 44 shown in Figure 7.
- the front portion of the receptacle includes a pair of diagonal frame members in the form of a downwardly facing chevron, in which the tip of the chevron defined by the meeting of the two diagonal frame members is in engagement with a lower horizontal frame member.
- Either embodiment is conveniently attached to a standard flat bed trailer by way of bolts 46.
- the framework is attached to the front coupling section 22 and the front 10a of the main body of the flat bed trailer 10.
- the floor of the receptacle 38 comprises frame members associated with the front coupling section 22, and the rear wall of the receptacle 38 comprises frame members associated with the front of the main body of the flat bed trailer 10.
- Representative dimensions of the receptacle 38 are height 280mm, length 525mm and width 970mm.
- a representative sidewall height is 405mm.
- a flat bed trailer has a rear-most bar which is fully detachable and a front-most bar in the form of a permanently located "swing" bar which can be swung into and out of its restraining position.
- a locating member such as a pin can be used to retain the front-most bar in its restraining position.
- the rear-most bar can be positioned and held in its restraining position using suitable means, such as the jaws described with reference to Figures 1 to 4. It is envisaged that, in at least some applications, it may be possible to utilise a bar of permanently fixed position.
- the front-most bar may be of permanently fixed position extending substantially laterally across the trailer, with the rear-most bar being moveable and positionable in bar retaining means.
- An advantageous feature of the invention is that it is highly cost effective and convenient to retrofit the restraining bars and the means for retaining the restraining bars in place to an existing, conventional flat bed trailer. This can be done by bolting on or otherwise attaching a pair of brackets which carry means for receiving the bars to the sides of the flat bed trailer.
- Other ways of retrofitting and indeed other ways of securing the bars to the flat bed trailers would readily suggest themselves to one skilled in the art.
- dedicated trailers in accordance with the invention may be provided which are supplied with the bars and associated retaining means already fitted.
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Abstract
According to the invention, there is provided a flat bed trailer (10) for transporting heavy machinery including: a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls (16,18); a plurality of restraining bars (32,34) disposable substantially laterally across the trailer from one side wall to the other side wall to restrain an item of heavy machinery (42) when positioned in the trailer; and at least one bar retaining means (28) for releasably retaining at least one of the restraining bars in its restraining position, in which at least some of the bar retaining means are disposed on the side walls.
Description
FLAT BED TRAILER
This invention relates to flat bed trailers for transporting heavy machinery. It is well known to transport items of heavy machinery, such as mechanical diggers and forklift devices, to a site of use using a flat bed trailer.
Traditionally, the item of heavy machinery is positioned on the trailer and straps are used to secure it in place. Unfortunately, it is becoming increasingly apparent that the use of straps is less than desirable, since the item of heavy machinery is often not secured in place very effectively. Indeed, the present inventors are aware that at least one fatality caused by an item of heavy machinery that fell from a flat bed trailer during transportation.
The present invention, in at least some of its embodiments, overcomes the above described problem and provides cost effective, convenient means for securely restraining an item of heavy machinery during transportation. According to a first aspect of the invention, there is provided a flat bed trailer for transporting heavy machinery including: a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls; a plurality of restraining bars disposable substantially laterally across the trailer from one side wall to the other side wall to restrain an item of heavy machinery when positioned in the trailer; and at least one bar retaining means for releasably retaining at least one of the restraining bars in its restraining position, in which at least some of the bar retaining means are disposed on the side walls.
It is understood that flat bed trailers do not have high sided walls,
although the flat bed trailers of the invention have side walls, which are low walls, typically extending less than one metre and commonly less than 50 cm above the level of the trailer floor.
The item of heavy machinery may be a plant hire item, such as a mechanical digger or forklift device. The item of heavy machinery might utilise caterpillar trackers, or might be a wheeled vehicle.
Preferably, the bar retaining means releasably retain all of the restraining bars in their restraining positions. However, it may be possible to employ a bar of permanently fixed position as one of the restraining bars. Preferably, the flat bed trailer has a pair of spaced apart restraining bars.
Most preferably the pair of restraining bars are spaced by at least 750mm.
One or more of the restraining bars may be fully detachable from the trailer. In preferred embodiments, all of the restraining bars are fully detachable from the trailer. One or more of the restraining bars may be permanently fixed to the trailer whilst being releasable from its restraining position. For example, a bar may be swingable, pivotable or otherwise moveable with respect to a permanent fixture so that the bar can be brought into or out of its restraining position.
The flat bed trailer may include one or more restraining bars which are fully detachable from the trailer and one or more restraining bars which are permanently fixed to the trailer whilst being releasable from its restraining position. In a preferred embodiment of this kind the flat bed trailer includes one restraining bar which is fully detachable from the trailer and one restraining bar which is permanently fixed to the trailer whilst being releasable from its
restraining position.
Advantageously, the bar retaining means include a plurality of bar receiving elements, such as collars and jaws.
The flat bed trailer includes a pair of longitudinally extending side walls, and at least some of the bar retaining means are disposed on the side walls.
The trailer may further include at least a pair of brackets, each located on a side wall, and at least some of the bar retaining means may be disposed on the brackets. In a preferred embodiment, each bracket is located on top of a side wall, and at least some of the bar retaining means are disposed on top of the brackets. Preferably, the brackets are releasably coupled to the side walls, most preferably by bolts.
Advantageously, the bar retaining means includes at least one bar retaining member which is coupleable with a restraining bar and engageable with another part of the trailer, preferably the floor of the trailer. In one embodiment, bar receiving elements are employed, and the bar retaining member provides additional support for a bar.
Advantageously, the flat bed trailer further includes a plurality of tracks disposed substantially longitudinally on the floor of the trailer for restraining the item of machinery when disposed in the trailer. The tracks provide restraint against sideways motion of the item of heavy machinery and aid in locating the item in the trailer.
Preferably, the restraining bars are stepped. This increases the clearance of the bars, enabling better restraint to be provided, and provides a structure having greater strength than a linear bar.
According to a second aspect of the invention, there is provided a flat bed trailer for transporting a mechanical digger having a bucket attached to a moveable arm including: a floor; a plurality of wheels suitable for travel over roads; coupling means for coupling the trailer to a towing vehicle; a plurality of restraining bars disposable substantially laterally across the trailer to restrain an item of heavy machinery when positioned in the trailer; at least one bar retaining means for releasably retaining at least one of the restraining bars in its restraining position; and a receptacle disposed on the coupling means for receiving and restraining the bucket of the mechanical digger. It is understood that flat bed trailers do not have high-sided walls, although it is possible for flat bed trailers to have low walls, typically extending less than one metre and commonly less than 50 cm above the level of the trailer floor.
Also, it is understood that the term 'bucket' relates to the scoop of a mechanical digger which is used for excavating purposes.
Preferably, the bar retaining means releasably retain all of the restraining bars in their restraining positions. However, it may be possible to employ a bar of permanently fixed position as one of the restraining bars.
Preferably, the flat bed trailer has a pair of spaced apart restraining bars. The flat bed trailer may include a pair of spaced apart restraining bars, the bars being spaced so that in use one of the restraining bars restrains a front portion of the mechanical digger, and the other one of the pair of restraining bars restrains a rear portion of the mechanical digger. Typically, the pair of restraining bars are spaced by at least 750mm.
One or more of the restraining bars may be fully detachable from the trailer. In preferred embodiments, all of the restraining bars are fully detachable from the trailer.
One or more of the restraining bars may be permanently fixed to the trailer whilst being releasable from its restraining position. For example, a bar may be swingable, pivotable or otherwise moveable with respect to a permanent fixture so that the bar can be brought into or out of its restraining position.
The flat bed trailer may include one or more restraining bars which are fully detachable from the trailer and one or more restraining bars which are permanently fixed to the trailer whilst being releasable from its restraining position. In a preferred embodiment of this kind the flat bed trailer includes one restraining bar which is fully detachable from the trailer and one restraining bar which is permanently fixed to the trailer whilst being releasable from its restraining position. Advantageously, the bar retaining means include a plurality of bar receiving elements, such as collars and jaws.
The flat bed trailer may include a pair of longitudinally extending side walls, and at least some of the bar retaining means may be disposed on the side walls. Typically, the side walls extend at least 300mm above the level of the trailer floor. The plurality of restraining bars may be disposable substantially laterally across the trailer from one side wall to the other side wall. The trailer may further include at least a pair of brackets, each located on a side wall, and at least some of the bar retaining means may be disposed on the brackets. In a preferred embodiment, each bracket is located on top of a side wall, and at least
some of the bar retaining means are disposed on top of the brackets. Preferably, the brackets are releasably coupled to the side walls, most preferably by bolts.
Preferably, the receptacle includes a frame. However, other receptacles, such as a box, might be envisaged. Preferably, the receptacle defines a substantially cuboid internal volume in which the bucket is received.
Advantageously, the bar retaining means includes at least one bar retaining member which is coupleable with a restraining bar and engageable with another part of the trailer, preferably the floor of the trailer. In one embodiment, bar receiving elements are employed, and the bar retaining member provides additional support for a bar.
Advantageously, the flat bed trailer further includes a plurality of tracks disposed substantially longitudinally on the floor of the trailer for restraining the item of machinery when disposed in the trailer. The tracks provide restraint against sideways motion of the item of heavy machinery and aid in locating the item in the trailer.
Preferably, the restraining bars are stepped. This increases the clearance of the bars, enabling better restraint to be provided, and provides a structure having greater strength than a linear bar. According to a third aspect of the invention there is provided a kit of parts for retrofitting to a flat bed trailer including at least a pair of brackets, each for locating on a side wall of a flat bed trailer; means for coupling the brackets to the side walls; at least one bar retaining means disposed on the brackets; and a plurality of restraining bars at least one of which can be releasably retained in
the bar retaining means so that the restraining bars are disposed substantially laterally with respect to the brackets when the brackets are arranged in parallel.
It is highly advantageous that retrofits can be provided to existing flat bed trailers conveniently and cost effectively. The kit of parts may further include a receptacle for receiving and restraining the bucket of a mechanical digger.
According to a fourth aspect of the invention there is provided a method of restraining an item of heavy machinery including the steps of: providing a flat bed trailer for transporting an item of heavy machinery including a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls; a plurality of restraining bars; and at least one bar retaining means, in which at least some of the bar retaining means are disposed on the side walls; positioning an item of heavy machinery in the trailer; restraining the item of heavy machinery by disposing the restraining bars substantially laterally across the trailer from one side wall to the other side wall, at least one of the restraining bars being releasably retained in its restraining position by the bar retaining means.
According to a fifth aspect of the invention there is provided a method of restraining a mechanical digger having a bucket attached to a moveable arm including the steps of: providing a flat bed trailer for transporting a mechanical digger including a floor; a plurality of wheels suitable for travel over roads; coupling means for coupling the trailer to a towing vehicle; a plurality of restraining bars; at least one
bar retaining means; and a receptacle disposed on the coupling means; positioning the mechanical digger in the trailer; and restraining the mechanical digger by disposing the restraining bars substantially laterally across the trailer, at least one of the restraining bars being releasably retained in its restraining position by the bar retaining means, and positioning the bucket in the receptacle so that the receptacle restrains said bucket.
Whilst the invention has been described above, it extends to any inventive combination or sub-combination of the features set out above or in the following description or drawings or claims.
Flat bed trailers in accordance with the invention will now be described with reference to the accompanying drawings, in which:
Figure 1 is a perspective view of a flat bed trailer of the invention;
Figure 2 shows (a) a side view and (b) a front view of a jaw; Figure 3 shows a side view of a collar;
Figure 4 shows (a) a front view and (b) a plan view of a front-most restraining bar;
Figure 5 shows a plan view of a pair of guide bars;
Figure 6 shows the floor of a flat bed trailer; and Figure 7 is another perspective view of a flat bed trailer of the invention.
Figure 1 shows a flat bed trailer 10 of the invention having a mechanical digger 12 positioned thereon. The main body of the flat bed trailer 10 is of conventional design, having road-engaging wheels 14, and low, parallel sidewalls 16,18. The flat bed trailer 10 further comprises a releasable back wall
20 permitting positioning of the mechanical digger 12 in the trailer 10, and a front coupling section 22 enabling the flat bed trailer 10 to be coupled to a suitable transportation vehicle such as a van or lorry. The flat bed trailer 10 further comprises a pair of brackets 24,26; the bracket 24 is mounted by way of bolts on to the top of the sidewall 16, and the bracket 26 is mounted by way of bolts on to the side wall 18. The bracket 24 has a pair of spaced apart jaws 28 upstanding therefrom, and the bracket 26 has a pair of spaced apart collars 30 upstanding therefrom. A pair of spaced apart bars 32,34 extend sideways across the flat bed trailer 10. One end of each bar 32,34 is located in a collar 30, and the other end of each bar 32,34 is located in a jaw 28, this positioning acting to secure the bars 32,34 in place. A securing pin 36 disposed near to the sidewall 16 further restrains the motion of the front-most bar 34. A further securing pin disposed near to the other sidewall 18 also performs this function.
The flat bed trailer 10 further comprises a receptacle 38 which is located on the front coupling section 22. The receptacle 38 receives the bucket 40 of the mechanical digger 12, the bucket being attached to a moveable arm 42. The receptacle 38 acts to restrain the bucket 40 during transportation of the digger 12.
Figures 2 to 4 show some of the features depicted in Figure 1 in more detail, and identical numerals are used to depict such shared features. Figure 2 shows a jaw 28 in more detail. The jaw 28 defines a rectangular groove 38 which is sized to receive a bar 32,34. The jaw 28 has an upright wall 28a having an aperture 28b formed therein which is sized to receive a locating member formed on a bar 32,34. The jaw 28 further comprises an upright flat 28c having
an aperture 28d formed therein. The aperture 28d secures one end of a chain, and the other end of the chain (not shown) is connected to a lynch pin (not shown) which, in use, is positioned in a receiving aperture formed in the retaining member of the bar. Figure 3 shows a collar 30 in more detail. It can be seen that the collar
30 defines an aperture 30a which is sized to receive one end of a bar 32,34. Figure 4 shows the front-most bar 34 in more detail. The bar 34 is stepped, having a dog leg arrangement which raises the height of the bar in its middle section. This increases the clearance of the bar in the region of contact or near- contact with the item of heavy machinery disposed in the trailer 10, and enables a better fit to the majority of heavy items commonly transported. Additionally, the stepped portion provides additional restraining surfaces 34a for preventing unwanted movement of the item of heavy machinery. The front-most bar 34 has a locating member 34b formed at one end thereof which in use is positioned in the aperture 28b of the respective jaw 28. The locating member 34b has a vertical bore 34c formed therein for receiving a lynch pin. The front-most bar 34 further comprises channels 34d, which may be in the form of external flutes, for receiving the securing pins 36.
Figure 5 shows a pair of guide bars 50 having a main elongate section 50a and a shorter elongate section 50b which is angled with respect to the main elongate section 50a. As shown in Figure 6, in use the guide bars 50 are disposed longitudinally on the floor 60 of the trailer 10, with the angled, shorter elongate sections 50b positioned adjacent the back wall of the trailer. The guide bars 50 provide restraint against sideways motion of the item of heavy
machinery during transportation, and have an additional advantage in aiding the location of the item of heavy machinery in the trailer. Other items described in connection with Figure 1 can be seen in Figure 6, and identical numerals are used to denote such shared features. Figure 7 shows the flat bed trailer 10 of Figure 1 in somewhat more detail.
Identical numerals are used to denote the features that are shared between Figures 1 and 7. It can be seen that the receptacle 38 is a framework arrangement comprising vertically, horizontally and diagonally disposed frame members. In an alternative embodiment, the front portion of the receptacle 38 does not include the uppermost horizontal frame member 44 shown in Figure 7.
Rather, the front portion of the receptacle includes a pair of diagonal frame members in the form of a downwardly facing chevron, in which the tip of the chevron defined by the meeting of the two diagonal frame members is in engagement with a lower horizontal frame member. Either embodiment is conveniently attached to a standard flat bed trailer by way of bolts 46.
Preferably, as shown in Figure 7, the framework is attached to the front coupling section 22 and the front 10a of the main body of the flat bed trailer 10. Thus the floor of the receptacle 38 comprises frame members associated with the front coupling section 22, and the rear wall of the receptacle 38 comprises frame members associated with the front of the main body of the flat bed trailer 10.
Representative dimensions of the receptacle 38 are height 280mm, length 525mm and width 970mm. A representative sidewall height is 405mm.
In another embodiment, a flat bed trailer has a rear-most bar which is fully detachable and a front-most bar in the form of a permanently located "swing" bar
which can be swung into and out of its restraining position. A locating member such as a pin can be used to retain the front-most bar in its restraining position. The rear-most bar can be positioned and held in its restraining position using suitable means, such as the jaws described with reference to Figures 1 to 4. It is envisaged that, in at least some applications, it may be possible to utilise a bar of permanently fixed position. For example, it may be possible for the front-most bar to be of permanently fixed position extending substantially laterally across the trailer, with the rear-most bar being moveable and positionable in bar retaining means. An advantageous feature of the invention is that it is highly cost effective and convenient to retrofit the restraining bars and the means for retaining the restraining bars in place to an existing, conventional flat bed trailer. This can be done by bolting on or otherwise attaching a pair of brackets which carry means for receiving the bars to the sides of the flat bed trailer. Other ways of retrofitting and indeed other ways of securing the bars to the flat bed trailers would readily suggest themselves to one skilled in the art. However, it should be noted that dedicated trailers in accordance with the invention may be provided which are supplied with the bars and associated retaining means already fitted.
Claims
1. A flat bed trailer for transporting heavy machinery including: a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls; a plurality of restraining bars disposable substantially laterally across the trailer from one side wall to the other side wall to restrain an item of heavy machinery when positioned in the trailer; and at least one bar retaining means for releasably retaining at least one of the restraining bars in its restraining position, in which at least some of the bar retaining means are disposed on the side walls.
2. A flat bed trailer according to Claim 1 having a pair of spaced apart restraining bars.
3. A flat bed trailer according to Claim 2 in which the pair of restraining bars are spaced by at least 750mm.
4. A flat bed trailer according to any previous claim for transporting a mechanical digger.
5. A flat bed trailer for transporting a mechanical digger having a bucket attached to a moveable arm including: a floor; a plurality of wheels suitable for travel over roads; coupling means for coupling the trailer to a towing vehicle; a plurality of restraining bars disposable substantially laterally across the trailer to restrain an item of heavy machinery when positioned in the trailer; at least one bar retaining means for releasably retaining at least one of the restraining bars in its restraining position; and a receptacle disposed on the coupling means for receiving and restraining the bucket of the mechanical digger.
6. A flat bed trailer according to Claim 5 including a pair of spaced apart restraining bars, the bars being spaced so that in use one of the pair of restraining bars restrains a front portion of the mechanical digger, and the other one of the pair of restraining bars restrains a rear portion of the mechanical digger.
7. A flat bed trailer according to Claim 6 in which the pair of restraining bars are spaced by at least 750mm.
8. A flat bed trailer according to any one of Claims 5 to 7 including a pair of longitudinally extending side walls, in which at least some of the bar retaining means are disposed on the side walls.
9. A flat bed trailer according to Claim 8 in which the side walls extend at least 300mm above the level of the trailer floor.
10. A flat bed trailer according to Claim 8 or Claim 9 in which the plurality of restraining bars are disposable substantially laterally across the trailer from one side wall to the other side wall.
11. A flat bed trailer according to any one of claims 5 to 11 in which the receptacle includes a frame.
12. A flat bed trailer according to any one of claims 5 to 11 in which the receptacle defines a substantially cuboid internal volume in which the bucket is received.
13. A flat bed trailer according to any previous claim in which the bar retaining means releasably retain all of the restraining bars in their restraining positions.
14. A flat bed trailer according to any previous claim in which the bar retaining means include a plurality of bar receiving elements.
15. A flat bed trailer according to any one of claims 1 to 4 or any one of claims 8 to 10 including at least a pair of brackets, each located on a side wall, in which at least some of the bar retaining means are disposed on the brackets.
16. A flat bed trailer according to claim 15 in which the brackets are releasably coupled to the side walls, preferably by bolts.
17. A flat bed trailer according to any previous claim further including a plurality of tracks disposed substantially longitudinally on the floor of the trailer for restraining the item of machinery when disposed in the trailer.
18. A flat bed trailer according to any previous claim in which the restraining bars are stepped.
19. A kit for parts for retrofitting to a flat bed trailer including at least a pair of brackets, each for locating on a side wall of a flat bed trailer; means for coupling the brackets to the side walls; at least one bar retaining means disposed on the brackets; and a plurality of restraining bars at least one of which can be releasably retained in the bar retaining means so that the restraining bars are disposed substantially laterally with respect to the brackets when the brackets are arranged in parallel.
20. A kit of parts according to Claim 19 further including a receptacle for receiving and restraining the bucket of a mechanical digger.
21. A method of restraining an item of heavy machinery including the steps of: providing a flat bed trailer for transporting an item of heavy machinery including a floor; a plurality of wheels suitable for travel over roads; means for coupling the trailer to a towing vehicle; a pair of longitudinally extending side walls; a plurality of restraining bars; and at least one bar retaining means, in which at least some of the bar retaining means are disposed on the side walls; positioning an item of heavy machinery in the trailer; restraining the item of heavy machinery by disposing the restraining bars substantially laterally across the trailer from one side wall to the other side wall, at least one of the restraining bars being releasably retained in its restraining position by the bar retaining means.
22. A method of restraining a mechanical digger having a bucket attached to a moveable arm including the steps of: providing a flat bed trailer for transporting a mechanical digger including a floor; a plurality of wheels suitable for travel over roads; coupling means for coupling the trailer to a towing vehicle; a plurality of restraining bars; at least one bar retaining means; and a receptacle disposed on the coupling means; positioning the mechanical digger in the trailer; restraining the mechanical digger by disposing the restraining bars substantially laterally across the trailer, at least one of the restraining bars being releasably retained in its restraining position by the bar retaining means, and positioning the bucket in the receptacle so that the receptacle restrains said bucket.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07732657A EP2015961B1 (en) | 2006-05-03 | 2007-05-03 | Flat bed trailer |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0608668.0A GB0608668D0 (en) | 2006-05-03 | 2006-05-03 | Flat bed trailers |
GB0608668.0 | 2006-05-03 | ||
GB0617701A GB2430917B (en) | 2006-05-03 | 2006-09-08 | Flat bed trailers |
GB0617701.8 | 2006-09-08 | ||
GB0702124A GB2430918B (en) | 2006-05-03 | 2007-02-05 | Flat bed trailers |
GB0702124.9 | 2007-02-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007129054A1 true WO2007129054A1 (en) | 2007-11-15 |
Family
ID=36603784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2007/001624 WO2007129054A1 (en) | 2006-05-03 | 2007-05-03 | Flat bed trailer |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2015961B1 (en) |
GB (2) | GB0608668D0 (en) |
WO (1) | WO2007129054A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2455636A (en) * | 2008-04-30 | 2009-06-24 | Ifor Williams Trailers Ltd | Trailer including excavator tool storage |
US8821087B2 (en) | 2010-11-30 | 2014-09-02 | Scotts Hire Limited | Attachment method |
GB2521252A (en) * | 2013-10-04 | 2015-06-17 | Indespension Ltd | Vehicle transportation apparatus |
GB2601030A (en) * | 2020-11-11 | 2022-05-18 | Whc Hire Services Ltd | Flat bed trailer |
GB2600931A (en) * | 2020-11-11 | 2022-05-18 | Whc Hire Services Holdings Ltd | Flat bed trailer |
GB2601028A (en) * | 2020-11-11 | 2022-05-18 | Whc Hire Services Ltd | Flat bed trailer |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2553301B (en) * | 2016-08-30 | 2019-11-27 | Ifor Williams Trailers Ltd | A trailer |
GB2556353B8 (en) * | 2017-04-20 | 2019-04-03 | Indespension Ltd | Vehicle transportation apparatus comprising storage for buckets and a breaker |
GB2601029B (en) * | 2020-11-11 | 2022-11-30 | Whc Hire Services Holdings Ltd | Flat bed trailer |
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GB2455636A (en) * | 2008-04-30 | 2009-06-24 | Ifor Williams Trailers Ltd | Trailer including excavator tool storage |
GB2455636B (en) * | 2008-04-30 | 2009-11-11 | Ifor Williams Trailers Ltd | Trailers |
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GB2601028A (en) * | 2020-11-11 | 2022-05-18 | Whc Hire Services Ltd | Flat bed trailer |
EP4001008A1 (en) | 2020-11-11 | 2022-05-25 | WHC Hire Services Holdings Ltd | Flat bed trailer |
EP4088968A1 (en) | 2020-11-11 | 2022-11-16 | WHC Hire Services Holdings Ltd | Flat bed trailer |
EP4091878A1 (en) | 2020-11-11 | 2022-11-23 | WHC Hire Services Holdings Ltd | Flat bed trailer |
EP4091879A1 (en) | 2020-11-11 | 2022-11-23 | WHC Hire Services Holdings Ltd | Flat bed trailer |
GB2600931B (en) * | 2020-11-11 | 2022-11-30 | Whc Hire Services Holdings Ltd | Flat bed trailer |
GB2601030B (en) * | 2020-11-11 | 2022-11-30 | Whc Hire Services Holdings Ltd | Flat bed trailer |
GB2601028B (en) * | 2020-11-11 | 2023-01-04 | Whc Hire Services Ltd | Flat bed trailer |
Also Published As
Publication number | Publication date |
---|---|
GB2430917A (en) | 2007-04-11 |
GB0608668D0 (en) | 2006-06-14 |
GB2430917B (en) | 2008-01-16 |
EP2015961B1 (en) | 2013-04-03 |
GB0617701D0 (en) | 2006-10-18 |
GB2430917A8 (en) | 2007-10-31 |
EP2015961A1 (en) | 2009-01-21 |
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