WO2000021410A1 - Trolley, in particular for airline applications - Google Patents
Trolley, in particular for airline applications Download PDFInfo
- Publication number
- WO2000021410A1 WO2000021410A1 PCT/EP1999/007131 EP9907131W WO0021410A1 WO 2000021410 A1 WO2000021410 A1 WO 2000021410A1 EP 9907131 W EP9907131 W EP 9907131W WO 0021410 A1 WO0021410 A1 WO 0021410A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- aluminium
- insert
- trolley
- fork
- base
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0028—Construction of wheels; methods of assembling on axle
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B31/00—Service or tea tables, trolleys, or wagons
- A47B31/06—Service or tea tables, trolleys, or wagons adapted to the use in vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
- B60B33/0042—Double or twin wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
- B60B33/0057—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being offset from swivel axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0073—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being symmetrical to wheel or wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0081—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on tire tread
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B31/00—Service or tea tables, trolleys, or wagons
- A47B2031/002—Catering trolleys
Definitions
- the present invention regards a trolley, in particular for use for airline applications, more particularly of the food-a ⁇ d-drink trolley type, Prior art
- trolleys for use in the field of air transport, there exist trolleys, in particular trolleys on board aeroplanes, such as food-and-dri ⁇ k trolleys and duty-free goods trolleys, the design of which is obsolete and altogether inadequate for present needs as regards reduced weight and improved functionality. Consequently, airline companies have expressed the strong need for innovative trolleys characterized in particular by reduced weight, reduced maintenance, and better safety characteristics.
- Another negative feature of known trolleys is that they are not very easy to handle and manoeuvre, owing to the inadequacy of the wheels. For example, food trolleys are subjected to stresses when they are pushed backwards and forwards along the aisles of aeroplanes for transporting drinks and food for the passengers.
- FIGS 6A and 6B show, respectively, a front view and a cross section of a caster assembly 10 used for existing food-and-drink trolleys.
- the caster assembly 1Q comprises the wheels 12 and a swivel plate 14. The wheels are fastened on by means of a nut 16 and a bolt 18 to the swivel plate 14.
- the said swivel plate comprises a certain number of parts, shown in Figure 6B, assembled together to form a single unit 14; consequently, the user cannot dismantle the swivel plate into its individual parts without damaging it irreparably.
- Figure 6B is a cross-sectional view along B-B of Figure 6A.
- the swivel plate 14 consists of approximately seven interconnected parts, not including the wheels 12 and the nut 16 and bolt 18. which together with the swivel plate 14 make up the wheel assembly 0.
- the swivel plate 14 comprises a brake with a pin 20, a disk 22 and a nut 24.
- a spring 26 surrounds the pin 20 adjacent to the top of the swivel plate 14 for lowering the brake disk 22 to bring it up against the wheel 12 when the top of the pin 20 is pressed. So that the pin can move within the plate, to be pressed against the wheel 12, a central rivet 28 is used to secure the parts of the swivel plate permanently together.
- the parts fastened together by the rivet 28 comprise a fork 30 to connect the wheel 12 to the swivel plate (shown more clearly in Figure 6A), a plurality of balls 32a, 32b (only two of which are shown) of a ball bearing, a seat 34 for the balls of the ball bearing, one or more flanges or collars 35, 36 which, together with the seat 34, define a ball race of the ball bearing, and a top plate 38.
- the seat 34 of the bearing and the flanges 35, 36 may be made of one piece with, or firmly fixed to, the fork or the plate 38.
- the balls are traditionally arranged within a circular bail race and are typically made of steel, as are the remaining parts of the caster assembly.
- the housings must be lubricated to reduce friction and to enable easy rotation of the fork 30 and of the wheel 12 with respect to the top plate 38.
- the swivel plates currently used for casters and described above are traditionally made of galvanized steel and may weigh approximately 750 g, as against approximately 500 g of those of the present invention.
- the trolley comprises a load-bearing structure moved by a caster assembly, which is basically made of aluminium, side panels, base and top panel, made basically ⁇ f aluminium, Kevlar®, carbon fibre or a material presenting similar features, appropriately combined together as described hereinafter
- a caster assembly basically made of aluminium and basically comprising an insert, a base and a fork.
- the fork is mounted on one or more of the wheels and is connected to the bottom part of the base, which, at the top houses the insert.
- a further object of the invention is the use of aluminium, which is extruded and subsequently machined using numeric-control machines, Kevlar®, carbon fibre or a material presenting similar features, the said materials being suitably combined together to form a food-a ⁇ d-drink trolley, in particular for use on aeroplanes. Further objects of the invention will be evident from the following description of the invention.
- Fig. 1 is a schematic front view of the trolley according to the invention, with a first door embodiment, the door in this case being plane.
- Fig. 2 presents the same view as Fig. 1 , with the door completely open and turned back against the side wall of the trolley.
- Fig. 3 is a schematic front view of a second door embodiment, the door in this case being crowned.
- Fig. 4 is a schematic top view of the trolley.
- Fig. 5 is a schematic side view of the trolley- Fig. 6A Is a schematic front view of a known caster assembly mounted on trolleys used for serving meals and drinks on aeroplanes,
- Fig. 6B is a side sectional view along the line B-B of Fig. 1A.
- Fig. 7 Is a schematic perspective view of a caster assembly that is to be mounted on the trolley of the invention.
- Fig. 8 Is a schematic sectional view in an assembled configuration of the swivel plate and of the wheel.
- Fig. 9 is a schematic side sectional view of the fork, base and insert (separated) which make up the swivel plate of Fig. 8.
- Fig. 9A is a schematic view of a first embodiment of the swivel plate 56 of small size.
- Fig. ⁇ B is a schematic view of a second embodiment of the swivel plate 56 of medium size.
- Fig, 9C is a schematic view of a third embodiment of the swivel plate 56 of large size.
- Fig. 10 is a schematic perspective view of the separate elements that make up the wheel assembly of Fig. 7.
- Fig- 11 is a schematic perspective view of the entire trolley.
- the trolley according to the invention is a food-and-drink trolley having a basically parallelepipedal structure having, at the vertices, three-way joints made of aluminium, connected together by means of aluminium strips set on the edges of said parallelepipedal structure.
- the said strips are connected to shaped surfaces made of a material selected among aluminium, Kevlar®. carbon fibre, or of a material presenting similar features, or of combinations of the above materials.
- the said joints, strips and surfaces are fixedly connected together with screws.
- the trolley further carries, on at least one side surface, a door, which can be hinged to the load-bearing structure of the trolley, or else may be connected to it in a sliding way.
- the said trolley Is likewise equipped with a caster assembly for moving It, the said caster assembly being basically made of aluminium, and with at least one braking device.
- the trolley according to the invention has a basically parallelepipedal shape and is mounted on casters.
- the caster assembly 50 will be described In detail In what follows.
- the basically parallelepipedal structure of the trolley carries at its vertices joints 1 of the three-way type, connected together by means of strips V set on the edges of the said parallelepipedal structure.
- These joints 1 and strips 1' are made of extruded aluminium, preferably the alloy 6082T6 produced by the firm Alcoa or Metra, or another product having similar features in terms of lightness and resistance.
- the above joints and strips are obtained by extrusion and are machined with numeric-control machines, i.e.. using machining processes which are well known to the experts of the art. This type of process guarantees precision-machined pieces without tolerances.
- the joints of known trolleys are made of die-cast steel and. on account of the stresses which they undergo, are very subject to failure.
- the side panels 2 and the rear panel are panels of the sandwich type with a honeycomb internal structure, manufactured by the firm Seal-Milano, or panels presenting similar features in terms of lightness, resistance, impact strength, breaking strength, etc.
- the aforesaid panels have an internal layer made up of an epoxy-resin or glass-fibre lamina, preferably having a thickness of approximately 0.2 mm, and of an external layer consisting of an epoxy-resi ⁇ or Kevlar® lamina, preferably having a thickness of approximately 0.3 mm. Between the internal layer and the external layer, an aluminium mesh or a vegetal-fibre honeycomb structure may be present.
- the panels are characterized by an impact strength determined by an impact test with a 5-kg steel ball dropped from a height of 1.50 m.
- the handle 4 is of the argonomic type, coated with non-slip plastic material.
- the door, in its first embodiment 5 and in its second embodiment 6, may be made with sandwich panels of the type described previously, or may be made of milled aluminium, according to the individual requirements of the various airline companies, On the external surface of the door, there may be applied drawings and decorations made using known techniques, such as sublimation or application of pre-decorated paper.
- the doors may also carry handles 5', 6' and friezes 5", 6".
- the doors may be hinged to the trolley with hinges 5a of a conventional shape, these also being made of aluminium having the same characteristics as those mentioned previously.
- the doors may slide with guides on bearings and be positioned parallel to the side panels 2.
- the doors may be made with Hat or crowned panels (maximum thickness 6-24 mm) or radiused with a radius of curvature of 20" so as to keep the temperature inside the trolley as far as possible at a given value.
- the top panel 7 can be made in a similar way to the side panel 2 or to the base 8. The latter is obtained by co-extrusion of aluminium and of a fibre material, such as Kevlar® or carbon fibre, or other material presenting similar features.
- a separator element 9 may be present, which has the purpose, for example, of strengthening the structure of the trolley, or has other purposes.
- the assembly may be completed by a drawer made of aluminium and a working surface, also made of aluminium (neither of which shown), for containing dry ice in order to keep the temperature low.
- a drawer made of aluminium and a working surface, also made of aluminium (neither of which shown), for containing dry ice in order to keep the temperature low.
- tanks or cavities may be present, or else projecting ridges and/or railings (also these are not shown), etc., for housing bottles.
- the trolley illustrated in Figures 1-5 and 11 Is a food-and-drink trolley.
- Other types of trolleys may be built using the techniques and materials described above and simply modifying the top part according to the specific requirements of the airline company that orders the trolley, ail these modifications being intended to be within the scope of the present invention.
- the trolley according to the invention is equipped with a brake 100.
- the brake is provided with two pedals 101 and 102, one for braking and the other for releasing the wheels.
- the brake 100 may be made with a single pedal for braking, whilst release of the wheels may be effected by a control or release mechanism located near the handle 4 or in another ergonomic position.
- the materials selected above must likewise meet the requirements in compliance with the standards of registration of the airline companies; they must therefore also be self-extinguishing, scratch-proof, fire-retardant and non-toxic materials, and ones that, in the event of fire, produce a low density of fumes, according to FFA (Federal American Aviation) Boeing Air-bus regulations.
- the final dimensions of the trolley are preferably as follows: length, approximately 800-820 mm; width, approximately 290-315 mm: height, approximately 980-1050 mm.
- the trolley must have these dimensions so that it can be advantageously housed in the compartments provided inside the aircraft of each airline company. All the parts of the trolley may be easily removed using simple tools, such as a screw-driver, to carry out cleaning, repairs and replacement of parts.
- a swivel plate basically made up of just three detachable parts (as compared to approximately seven in the known art): a fork, a base, and an insert; these parts are made starting from blocks of extruded and machine aluminium, and are used in combination with plastic, in particular Torlo ⁇ ®, ball-bearing balls.
- Tha ball bearings used have balls made of a suitable plastic material having adequate resistance and being self-lubricating (e.g.. Torlon®).
- Conventional bail bearings with balls made of steel are to be avoided in that they scratch the aluminium and require lubrication.
- the wheels are coated with rubber, either natural or synthetic; in the latter case, in particular polyurethane rubbers may be used.
- rubber either natural or synthetic; in the latter case, in particular polyurethane rubbers may be used.
- the advantage of natural rubber Is that the wheels roll more smoothly on the floor, and the disadvantage is the high cost.
- polyurethane or other types of synthetic rubber
- the wheels do not roll so smoothly.
- Figure 7 shows a perspective view of the caster assembly 50 comprising the swivel plate 52 and, attached thereto, the wheels 54a, 54b.
- the wheels 54a, 54b are attached to the swivel plate by means of a nut (not shown) and bolt 53.
- the swivel plate 52 comprises a base 56, a fork 57, and an insert 58 (substantially hidden from view by the fork 57; in this figure, only the underside of the insert 58 is visible).
- the base 56, the fork 57, and the insert 58 are made of extruded and machined aluminium, preferably the alloy 6082T6 referred to above.
- FIG. 8 is a cross-sectional view of the internal alignment of the base 56, the fork 57, and the insert 58 (In the drawing various types of hatching are used to distinguish the various parts).
- the fork 57 which is attached to the wheel (see Figure 7), is here substantially hidden by the wheel 54-
- the fork has a raised part 63 which extends upwards with a part of its angled surface 64.
- the angled surface 64 together with the base 56 and the insert 58, defines a ball race for the balls of a ball bearing; i.e., the insert 58 has a raised part 66. and at least one part of the surface ⁇ f this raised part 66 is inclined to define an Inclined surface 67.
- the base 56 has an internal cavity with a groove 68, so that, when the base 56, fork 57, and insert 58 are assembled together, a seat or ball race 65 is obtained defined by the angled surface 64 of the fork, the angled surface 67 of the insert, and the groove 68 of the base.
- the angled surfaces 64, 67 and the surfaces of the groove 68 are plane surfaces set at roughly 45° with respect to the horizontal plane of the swivel plate.
- other forms may be used, provided that they do not present any hindrance to rolling.
- a set of balls 70 Arranged inside the ball race 65 of the ball bearing is a set of balls 70, preferably between approximately 15 and 25.
- the ball race has a rhombus-shaped profile.
- the use of profiles that do not conform to the shape of the balls Is an aid to their rolling in that it decreases the number of points of friction and provides recesses in which debris can accumulate without interfering with the rolling of the balls.
- the balls may be advantageously made of a plastic material, more preferably of an acetal-type material tike Deldrin® and, more preferably, a polyamide-imide material commonly known as Torion®.
- Nylon Is the least preferred because it is readily subject to thermal expansion; since during use of the trolley the temperature of the surrounding environment may vary greatly, any thermal expansion of the nylon parts would hinder rolling.
- Figure 9 presents a side view of the base 56, of the fork 57, and of the insert 58, separated from one another.
- the insert 58 bears the raised part 66 with the angled surface 67 and a projection 76 with holes 79a, 79b for the screws which extend through the raised part 66.
- the insert 5B also has a through hole 80 for insertion of the pin 81 of the brake, as shown in Figure 10.
- the fork 57 has a raised part 63 and an angled surface 64.
- a plurality of holes 74a, 74b are also arranged in the fork and extend through the raised part 63 to connect, in a way so that they can be dismantled, the insert to the fork by means of the screws 59a, 59b, which thread into the holes 79a, 79b and 74a, 74b.
- the fork 57 has an internal hole 75 for inserting the projection 76 of the insert 58. Consequently, the internal dimensions of the hole 75 will be slightly greater than the external dimensions of the projection 76, whilst the raised part 66 will be positioned on the raised part 63.
- the base 56 has an internal hole 77 which accepts the raised part 63 of the fork 57 and moreover receives both the projection 76 and the raised part 66 of the insert.
- the base 56 is set on the raised part 63 of the fork 57.
- a number of balls 70 Is set within the channel defined by the groove 68 and by the inclined surface 64 of the raised part.
- the projection 76 of the insert 58 is inserted in the hole 75, so that the balls are withheld in the seat 65 defined by the groove 68, by the inclined surface 64, and by the inclined surface 67.
- the fork 57 and the insert 58 are held together by the screws 59a, 59b inserted in the holes 74a, 79a and 74b, 79b.
- the balls 70 enable the base 56 to rotate with respect to the fork 56 and the insert 58, in that the base 56 is configured so that there is a small space 82 between the base 56 and the fork and the insert.
- the base may be fixed on the bottom of the trolley of the present invention with screws inserted in the holes 72a, 72b and on the base of the trolley.
- Figures 9A, 9B and 9C present a top plan view of the different embodiments of the base 56, i.e., small, medium and large, respectively, with reference to their dimensions referred to the on-centres between the holes 56', which may be respectively for each base approximately 41.2 mm and 54.0 mm; approximately 32.5 and 79.4 mm; and approximately 62.0 mm and 62.0 mm.
- Figure 10 presents a perspective view of the components of the swivel plate 52 together with the wheels and the brake, which make up the caster assembly 50 of the invention, here shown detached from one another. As may be seen, all the parts may be easily disassembled with the use of simple tools, such as a screwdriver, to enable repairs and replacement of parts.
- Figure 10 also shows the brake, which comprises a pin 81 , a spring 84 and a nut 88. As may be seen from the figure, the pin is inserted in the hole 80 which passes through the insert. When the projection 78 of the insert 58 is inserted in the hole 75 of the fork 57, the pin 81 extends below the fork 57.
- a spring 84 surrounds the pin 81 at the top of the entire assembly so as to press the disk 86 of the brake against the wheels 54a, 54b when the top of the pin 81 is pressed.
- the wheels 54a, 54b are connected to the fork 57 with a nut 53 and a bolt 53a.
- a caster assembly configured and built according to the invention made for trolleys for use on aeroplanes may weigh approximately 450 g as against the 750 g of current caster assemblies, with a consequent substantial reduction in weight (approximately 1200 g per trolley for the wheels alone). It had previously been considered desirable to use stamped, galvanized steel for the components of the swivel plate, with steel ball-bearings for the required durability.
- the caster assembly according to the present invention which uses machined aluminium, and the remainder of the trolley, where also plastic material is used as described above, is lighter, simpler, easier to assemble, stronger, more resistant, and corrosion-proof.
- it entails the use of a smaller number of parts, which are assembled using only screws, and hence are easy and fast to assemble and disassemble. All the parts, in fact, may be disassembled without any particular equipment.
- the service life of the trolley and of the casters is decidedly increased by the use of the materials selected.
- the parts can be readily dismantled makes the trolley easy to maintain and, if necessary, to repair, because the user does not need to replace entire components of which only one part is damaged.
- the caster assembly described above it is pos ⁇ ible to replace the wheels, the fork, the insert, and the ball bearings individually.
- the fact that the various parts can be dismantled also makes the construction and assembly of the trolley easier.
- parts made of machined aluminium are more durable; in the first place, there is no danger of rusting, and lubricants are not required.
- the caster assembly of the present invention does not involve the use of particular techniques for assembling the parts.
- the balls of the ball bearings are made of plastic and are made to turn in a ball race made of extruded and machined aluminium and defined by the fork, the insert and the base of the swivel plate.
- the profile of the ball race enables an easier and continuous pivoting of the fork with respect to the base even when lubricant is not used.
- the fact of eliminating the use of lubricants enables a higher degree of cleanness of the device, which is less likely to collect dirt and debris, so maintaining a greater freedom of rotation and preventing lubricant from dirtying the surfaces.
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Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP99952466A EP1117315A1 (en) | 1998-09-25 | 1999-09-24 | Trolley, in particular for airline applications |
AU64667/99A AU6466799A (en) | 1998-09-25 | 1999-09-24 | Trolley, in particular for airline applications |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITRM98U000232 | 1998-09-25 | ||
IT98RM000232 IT245719Y1 (en) | 1998-09-25 | 1998-09-25 | TROLLEY, IN PARTICULAR FOR AERONAUTICAL USE. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000021410A1 true WO2000021410A1 (en) | 2000-04-20 |
Family
ID=11405801
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1999/007131 WO2000021410A1 (en) | 1998-09-25 | 1999-09-24 | Trolley, in particular for airline applications |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1117315A1 (en) |
AU (1) | AU6466799A (en) |
IT (1) | IT245719Y1 (en) |
WO (1) | WO2000021410A1 (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1019366C2 (en) * | 2001-11-14 | 2003-05-15 | Driessen Aircraft Holding B V | Catering trolley for use on aircraft, train or boat, has door comprising extruded hollow profiles |
US7546662B2 (en) | 2007-05-07 | 2009-06-16 | Jacob Holtz Company | Caster with weight transferring tab |
US8465030B2 (en) | 2008-12-07 | 2013-06-18 | Norduyn Inc. | Modular utility cart |
US8596655B2 (en) | 2010-04-13 | 2013-12-03 | Norduyn Inc. | Parts securing mechanism and method thereof |
DE102013203482A1 (en) * | 2013-03-01 | 2014-09-04 | Lufthansa Technik Ag | Transport trolley for tablet computer and control method |
US9027204B2 (en) | 2007-05-07 | 2015-05-12 | Jacob Holtz Company | Casters having weight transferring tab |
EP3065594A1 (en) * | 2013-11-04 | 2016-09-14 | Wrasp Ltd | Lockable container |
US11464328B2 (en) * | 2020-02-20 | 2022-10-11 | Juan Pablo Mascaretti | Service cart |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2183435A5 (en) * | 1972-07-27 | 1973-12-14 | Air France | |
FR2228353A5 (en) * | 1973-05-02 | 1974-11-29 | Uta Union Transports Aeriens | Trolley for use on aircraft - has demountable light alloy parts with plastics insulation |
US4045104A (en) * | 1975-08-20 | 1977-08-30 | Peterson Clinton B | Cabinet structure and method of construction |
GB2054115A (en) * | 1979-07-21 | 1981-02-11 | Lermer App Gmbh | Drawer for dry ice |
FR2624082A1 (en) * | 1987-12-04 | 1989-06-09 | Socamel Sa | Device for assembling rolling members whose structure is built into the chassis of a trolley or the like |
-
1998
- 1998-09-25 IT IT98RM000232 patent/IT245719Y1/en active
-
1999
- 1999-09-24 AU AU64667/99A patent/AU6466799A/en not_active Abandoned
- 1999-09-24 WO PCT/EP1999/007131 patent/WO2000021410A1/en not_active Application Discontinuation
- 1999-09-24 EP EP99952466A patent/EP1117315A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2183435A5 (en) * | 1972-07-27 | 1973-12-14 | Air France | |
FR2228353A5 (en) * | 1973-05-02 | 1974-11-29 | Uta Union Transports Aeriens | Trolley for use on aircraft - has demountable light alloy parts with plastics insulation |
US4045104A (en) * | 1975-08-20 | 1977-08-30 | Peterson Clinton B | Cabinet structure and method of construction |
GB2054115A (en) * | 1979-07-21 | 1981-02-11 | Lermer App Gmbh | Drawer for dry ice |
FR2624082A1 (en) * | 1987-12-04 | 1989-06-09 | Socamel Sa | Device for assembling rolling members whose structure is built into the chassis of a trolley or the like |
Cited By (14)
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SG122770A1 (en) * | 2001-11-14 | 2006-06-29 | Driessen Aircraft Holding Bv | Service trolley for use in an aircraft or a train |
NL1019366C2 (en) * | 2001-11-14 | 2003-05-15 | Driessen Aircraft Holding B V | Catering trolley for use on aircraft, train or boat, has door comprising extruded hollow profiles |
US9027204B2 (en) | 2007-05-07 | 2015-05-12 | Jacob Holtz Company | Casters having weight transferring tab |
US7546662B2 (en) | 2007-05-07 | 2009-06-16 | Jacob Holtz Company | Caster with weight transferring tab |
US8042226B2 (en) | 2007-05-07 | 2011-10-25 | Jacob Holtz Company | Caster with weight transferring tab |
US8407856B2 (en) | 2007-05-07 | 2013-04-02 | Jacob Holtz Company | Caster with weight transferring tab |
US9180897B2 (en) | 2008-12-07 | 2015-11-10 | Norduyn Inc. | Modular utility cart |
US8465030B2 (en) | 2008-12-07 | 2013-06-18 | Norduyn Inc. | Modular utility cart |
US8596655B2 (en) | 2010-04-13 | 2013-12-03 | Norduyn Inc. | Parts securing mechanism and method thereof |
DE102013203482A1 (en) * | 2013-03-01 | 2014-09-04 | Lufthansa Technik Ag | Transport trolley for tablet computer and control method |
DE102013203482B4 (en) * | 2013-03-01 | 2020-06-25 | Lufthansa Technik Aktiengesellschaft | Trolley for tablet computers and control methods |
EP3065594A1 (en) * | 2013-11-04 | 2016-09-14 | Wrasp Ltd | Lockable container |
US9986823B2 (en) | 2013-11-04 | 2018-06-05 | Weight Reduction And Aerospace Security Products Limited | Portable container system |
US11464328B2 (en) * | 2020-02-20 | 2022-10-11 | Juan Pablo Mascaretti | Service cart |
Also Published As
Publication number | Publication date |
---|---|
ITRM980232U1 (en) | 2000-03-25 |
EP1117315A1 (en) | 2001-07-25 |
IT245719Y1 (en) | 2002-03-22 |
AU6466799A (en) | 2000-05-01 |
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