FR2857926A1 - Rolling frame for hand carriage, has axle with two wheels on which mounting bars are rigidly fixed, and inclined fixation part at axle to permit carriage frame assembly and wheels to cross obstacles - Google Patents

Abstract

The frame has an axle with two wheels on which two interior and exterior parallel mounting bars are rigidly fixed. The bars are made in U shape by standard metallic tube or durable folded material. Exterior mountings has an inclined fixation part at the axle to permit a carriage frame assembly and the wheels to cross obstacles. Interior mountings has a hook for fixing the interior mountings to the axle and to an end of a bending. An independent claim is also included for a hand carriage.

Description

I

  The invention relates to an axle hand truck and in particular to a rolling chassis for such a truck. Such a carriage wheeled chassis, with a handle and of length capable of being easily worn by an adult at arm's length, comprises an axle equipped with two wheels or group of wheels and on which are welded or otherwise rigidly fixed four substantially parallel bars of the upright forming two inner post bars and two outer post bars preferably made of wire or standard metal tube or of a strong material folded or formed generally U-shaped prior to their welding or attachment to the axle.

  Hand trolleys are widely used by the public worldwide, especially in the urban world which currently accounts for almost a third of the world's population, the other two thirds often using the wheelbarrow invented in China for at least 3 millennia and which allows a single man to carry nearly 200 kg of goods or materials on the most diverse tracks provided that the slope of these paths does not exceed about ten percent inclination and which allows, like the trolley , to easily deposit the load carried to rest or to discharge this load.

  The wheel which can be considered as the first of the great human inventions, because the fire was pre-existent to the man and thus constituted a discovery and not an invention, was without doubt used on the wheelbarrows before being used on tanks. The hand and wheel axle carts allow the load to be tilted on the wheel during taxiing and thus have the advantages of wheelbarrow rolling but they are obviously less bulky than a wheelbarrow that makes people in cities who are unaware generally deeply enough the realities of the campaign! ...

  Trolleys used in many forms, from the individual shopping trolley to the trolleys or supermarket shopping carts are stable but as bulky as a wheelbarrow and do not present, of course, like all human achievements, not that benefits. Known axle hand trucks are intended to carry loads sometimes bulky but of a weight limited to about 20 kg maximum, corresponding to the reduced muscular capacity of urban users! In some applications, larger loads must not only be fired, but must frequently be used on sidewalks and up and down stairs. Among the exceptional loads sometimes transported by hand trolleys are electrical household appliances such as microwave ovens and even machines. washing (very exceptional) but also the bottles of propane gas and especially butane, used throughout the world in the form of the standard bottle of 13 kg of butane gas and / or liquefied propane, 5 removable, mobile and weighs in full load of 23 kg (butane) to 24 kg (propane) and that many users carry laboriously by hand in their car trunks while others would like to pull the bottle on a rolling cart not only on a flat hard floor and smooth but also on uneven floors, curbs and even stairs. Conventional trolleys generally prove to be insufficiently rigid and resistant to climb sidewalks and stairs many times. Very practical solutions have been proposed for trolleys for transporting gas cylinders, in particular by the applicant, but the need has been expressed to have a hand trolley that can easily be stored in a car trunk and that it is not very bulky and which makes it possible not only to transport the gas bottle but almost all the transports carried out by the hand trolleys, such as the transport of provisions, the transport of firewood, the transport of oil cans, heating of 20 liters, and generally all transport carried out by hand in the developing countries, during DIY and in the countryside and this up to 50 kg load at least.

  For this purpose, according to the invention, in the truck rolling frame, on the one hand, the outer uprights comprise, in the vicinity of their connection to the axle, an inclined attachment part to the axle so as to allow the together the carriage frame and the axle wheels to easily cross small obstacles such as sidewalks, stairs, during rolling by a rolling sliding effect, and secondly, the profile or folding in U of the inner uprights comprises, beyond their attachment to the axle and at each end of the folding, a curved or hooked portion and slightly inclined on the opposite side to the inclination of the outer uprights in the vicinity of the axle, for allow the attachment of a load or accessory 30 of the carriage, including the attachment of the rim of a 13 kg liquefied gas cylinder.

  According to another embodiment of the carriage frame according to the invention, the upper part furthest from the axle of the two U-shaped inner uprights protrudes above the transverse bar of the two upright U-shaped uprights. height forming a gantry slightly inclined to the side of the curved or hooked portion of the inner uprights and therefore the opposite side to the inclination of the outer uprights, and each of the inner uprights has an inner ring which is rigidly fixed to the inner side of the large U amounts of \\ HIRSCH6 \ PATENTS \ Patents \ 21400 \ 21464.doc - 24 July 2003 2/11 interior and which is adapted to receive a leg of a sliding telescopic handle formed by a bar of wire or tube bent in U slidably and slightly sliding between the gantry bar of the uprights and the U-bar of the inner uprights.

  According to yet another embodiment of the carriage frame according to the invention, the curved or hooked part of the U-shaped inner uprights is formed by each of the two ends of the U-leg of the monoblock unit made of wire or tube of U-shaped inner pillars which is folded at a first lower end in use, welded, or otherwise attached to the axle, substantially 900 towards the interior of the U at a low angle of inclination to the median plane of the U and which is further folded at the free end by being inclined with respect to the axis of the axle, that is to say upwards in the service position of the carriage frame, so as to form two The hooks project upwardly in use and slightly projecting from the middle U-plane of the inner uprights so as to be able to hook the bottom edge of a standard 13 kg gas cylinder.

  According to still further embodiments of the carriage frame of the invention, each of the outer posts has at least one ring so the axis of the hole is substantially parallel to the plane of the U of the outer posts. Each of the outer posts may comprise two superposed rings, formed by welding or other rigid attachment of a generally W-shaped wire profile in the vicinity of the transverse bar of the uprights. The weld of the generally W-shaped profile on the upright forms two elongate ring holes in the direction perpendicular to the plane of the U of the external uprights. The two ring holes have different lengths of elongate shape, the longest being located at the upper part, that is to say the closest to the transverse bar of the U of the external uprights, so as to include in particular different positions of the arches or retaining supports bottles or cans and whose ends are engaged elastically in the holes of the rings.

  The axle hand truck comprising a carriage frame as described above, is characterized in that it comprises a telescopic handle generally U-shaped with long branches, provided at each of their free ends with a short hook constituted by folding substantially in a plane perpendicular to the median plane of the U-shaped handle, said handle being capable of being engaged by each of its end hooks in the hole of the corresponding inner ring 35 of the inner upright and of slidably engage slightly between the U-frame gantry bar and the U-frame gantry bar.

  According to another embodiment of the axle hand trolley of the invention, each of the branches of the telescopic handle U has a flexibility allowing to move the telescopic handle in a first short and sliding position in which each of the short hooks of the ends of the U of the handle 5 can bear on the axle, the telescopic handle then projecting slightly above the crossbar inner pillars and respectively the frictionally sliding handle between the respective transverse bars of the inner and outer pillars, to come with its transverse bar at the cross bar of the inner pillars to facilitate the transport of the arm extended carriage.

  According to yet another embodiment of the hand truck according to the invention, the telescopic handle U is able to move after unlocking by elastic deformation of the legs or legs of the U of the handle in a second long position in which each of the hooks The short ends of the legs 15 U of the handle can bear against the corresponding inner ring of the inner pillar, thus forming a long carrying handle which is supported, on the one hand, by the support of the short hooks. on the two inner rings, and on the other hand, by the elastic nip between the crossbar of the outer uprights and the crossbar of the inner uprights.

  According to another embodiment of the hand truck according to the invention, the carriage comprises a removable arch formed substantially in a half circle with ends folded at right angles which are snapped, after elastic separation of the arch, each in a hole of the respective ring of the external uprights.

  The hand truck according to the invention may comprise a removable basket provided with two bent wire or folded tube uprights and at least two wire or tube crosspieces attached to two bends at 900 of said uprights to constitute, by folding up (in use) of these folds, a kind of U-shaped box which is, on the one hand, likely to receive bulky objects such as bundles or logs of wood or stakes and on the other hand , to rest on the ground at the upward folding angle, and the removable basket comprises, at the upper end (in use) of said uprights short hooks folded at right angles parallel to the sleepers, and which are engaged each in an upper hole of the rings of the carriage frame, the cross member at the inner corner of the U of the basket being engaged between the slightly inclined hooks of the inner uprights secured to the axle. The other of the two ties of the basket may be arranged to allow to carry in the basket and thus in the cart a large capacity canister such as a keg of kerosene or heating twenty liters.

  The hand truck according to the invention may comprise a flexible bag of textile material or otherwise flexible and resistant engaged in the U-shaped casing being, on the one hand, connected to the outer uprights at its upper part by two tabs each provided with a ring through which the hook of the basket upright, and on the other hand, connected to the hooks of the chassis formed on the axle , for example by an overlapping textile ring and, on the other hand, to the transverse bar of the U of the external uprights, for example by a locking ring of the genus Velcro (registered trademark), the flexible bag being provided, where appropriate , a lid or flap closed removably by any means such as Velcro, pressure, tongue, etc ...

  The invention also relates to a removable telescopic handle for a hand carriage having the general shape of a U with elongated branches and made of wire, in particular steel wire of 8 mm in diameter, the ends of the branches of the U being folded at right angles perpendicular to the median plane of the U to form two short hooks.

  The invention also relates to a removable basket for a hand trolley made of wire, in particular steel wire 6 mm in diameter and having two attachment amounts and a U-shaped box formed by a double fold of the wire by forming a support base on the ground or support by its opposite angle to the amount after mounting on the carriage, the box having at least two cross members 20 at its base, one in the vicinity of the amounts, and where appropriate , two inclined reinforcing crosspieces connecting each of the two uprights to the support base at a crossmember, the upper end (in use) free of each of the two uprights being provided with a short hook formed by folding towards the inside of the upper end (in use) of the upright to allow the hooking of the basket to a hole 25 of a ring on a support frame of the basket.

  The invention also relates to a removable flexible bag for a hand truck, made of resistant textile material or flexible material waterproofed or not and comprising a lid or flap capable of closing the bag easily removable manner and removable fasteners, characterized in that it comprises, at its upper part, laterally on each side a bracket provided with a ring for attachment of the bag by two hooks through the hole of the rings.

  Other objects, advantages and features will appear on reading the description of various embodiments of the invention, given in a non-limiting manner and with reference to the appended drawing in which: - Figure 1 shows, in perspective from above of in front and in elevation, the trolley undercarriage according to the invention equipped with a removable telescopic handle and a hoop to form an axle hand trolley, able to carry \\ HIRSCH6 \ PATENTS \ Patents \ 2 1400 - a bottle of liquefied propane or butane gas, the rollbar being in the transport position of a butane bottle; 2 shows a propane cylinder mounted on the hand truck of Figure 1, the assembly being for example placed in the safety position lying on the floor of the trunk of a passenger car; - Figure 3 shows in elevation, placed in the rest position or waiting for loading on the ground, and in median cross section, the supply carriage according to the invention made with the carriage wheel chassis of Figure 1, combined on the one hand to a removable basket according to the invention can be used for transporting heavy and bulky parts such as logs of wood, and secondly, a removable bag according to the invention; - Figure 4 shows in perspective and in elevation of the rear, a carriage according to the invention equipped with the removable handle, the locking bar of gas cylinders, and the wood basket (with a log shown in phantom purposes) according to the invention.

  \\ HIRSCH6 \ PATENTS \ Patents \ 21400 \ 21464.doc - July 24, 2003 - 6/11

Claims (16)

  1. Trolley wheel chassis, with handle and of length capable of being easily worn by an adult at arm's length, comprising an axle equipped with two wheels or 5 group of wheels and on which are welded or otherwise rigidly fixed four post bars substantially parallel members forming two inner post bars and two outer post bars preferably made of wire or standard metal tube or of a strong material folded or formed generally U-shaped prior to their welding or attachment to the axle, wherein on the one hand, the outer legs have, in the vicinity of their connection to the axle, an inclined attachment part to the axle so as to allow the entire carriage frame and to the wheels of the axle. to easily cross small obstacles such as sidewalks, stairs, during rolling by a sliding effect - rolling, and secondly, the profile or folding U-shaped the inner uprights comprise, beyond their attachment to the axle and at each end of the fold, a curved or hooked part, and slightly inclined on the opposite side to the inclination of the outer uprights in the vicinity of the axle, to allow the attachment of a load or a carriage accessory, including the attachment of the rim of a bottle.   2. Trolley chassis according to claim 1, characterized in that the upper part farthest from the axle of the two U-shaped inner pillars protrudes above the cross bar of the two upright U-shaped uprights at a low height. forming a slightly sloped gantry on the side of the curved or hooked portion of the inner uprights and therefore the opposite side to the inclination of the outer uprights, and each of the inner uprights has an inner ring which is rigidly attached thereto on the inner side of the large U of the inner uprights and which is adapted to receive a leg of a sliding telescopic handle formed by a bar of wire or tube bent U which slidably slides and slightly tightened between the gantry bar of the external uprights and 30 the U-bar of the inner uprights.   3. Trolley chassis according to claim 1 or claim 2, characterized in that the curved or hooked portion of the U-shaped inner uprights is formed by each of the two ends of the U-leg of the monoblock wire assembly. or in the form of U-shaped inner tubes which is folded at a first lower end in use, welded, or otherwise fixed to the axle, substantially 90 inwardly of the U at a low angle of inclination to the plane median of the U and which is further folded at the free end by being inclined with respect to the axle of the axle. , that is to say upwards in the service position of the carriage frame, so as to form two hooks projecting upwards in use and slightly protruding from the middle plane of the U of the inner uprights, so as to to be able to hang the bottom edge of a standard 13 kg gas cylinder.   4. Trolley chassis according to any one of claims 1 to 3, characterized in that each of the outer uprights comprises at least one ring so the axis of the hole is substantially parallel to the plane of the U of the uprights 10.   Trolley undercarriage according to one of Claims 1 to 4, characterized in that each of the outer posts comprises two superposed rings formed by welding or other rigid attachment of a generally W-shaped wire profile to neighborhood of the transverse bar of the U of the external uprights.   6. Trolley chassis according to claim 5, characterized in that the weld of the generally W-shaped profile on the upright forms two elongated ring holes in the direction perpendicular to the U-plane of the uprights 20.   7. Trolley chassis according to claim 6, characterized in that the two ring holes have lengths of different elongated shape, the longest being located at the upper part, that is to say the closest to the bar 25 crosswise U of the outer uprights, in particular to place in different positions of the arches or retaining supports bottles or drums and whose ends are engaged elastically in the holes of the rings.   8. Hand axle trolley comprising a carriage frame according to any one of the preceding claims, characterized in that it comprises a telescopic handle generally U-shaped with long branches, provided at each of their free ends with a short hook consisting of a folding substantially in a plane perpendicular to the median plane of the handle U, said handle being capable of being engaged by each of its end hooks in the hole of the corresponding inner ring of the inner upright and of slidably engage with a slight gap between the U-frame gantry bar and the U-frame gantry bar.   \\ HIRSCH6 \ B REVETS \ Brevcts \ 21400 \ 21464.doc - July 24, 2003 - 8/11 An axle hand truck according to claim 8, characterized in that each of the legs of the U-shaped telescopic handle has a flexibility to move the telescopic handle into a first short and sliding position in which each of the short end hooks the U of the handle 5 can abut on the axle, the telescopic handle then protruding slightly above the cross bar of the inner uprights and respectively the handle sliding with friction between the respective transverse bars of the inner and outer uprights, to come with its cross bar at the crossbar of the inner uprights to facilitate the transport of the arm 10 trolley.   10. Hand axle trolley according to claim 8 or claim 9, characterized in that the telescopic handle U is able to move after unlocking by elastic deformation of the legs or legs of the U of the handle in a second long position. wherein each of the short hooks ends of the legs of the U of the handle can abut on the corresponding inner ring of the inner upright, thereby forming a long carrying handle which is supported, on the one hand, by the support of the short hooks on the two inner rings, and secondly, by the elastic nip between the cross bar of the outer 20 uprights and the crossbar of the inner uprights.   11. Hand trolley according to any one of claims 8 to 10, characterized in that the carriage comprises a removable arch formed substantially in a half circle with ends folded at right angles which are latched, after 25 elastic separation of the hoop , each in a hole of the respective ring of the outer uprights.   12. Hand trolley according to any one of claims 8 to 11, characterized in that it may comprise a removable basket provided with two bent wire or folded tube uprights and at least two crosspieces in wire or in tube fixed at two folds to 90 of said amounts to constitute, by folding up (in use) of these folds, a kind of U-shaped box which is, on the one hand, capable of receiving bulky objects such as packages or wood logs or pegs and, secondly, to bear on the ground at the upward folding angle, and the removable basket 35 comprises, at the upper end (in use) of said hooks uprights short bent at right angles parallel to the sleepers, and which are each engaged in an upper hole of the rings of the carriage frame, the cross member at the inner corner of the U of the basket being engaged between the slightly inclined hooks of the TURSCH6 \ PATENTS \ Patents \ 21400 \ 21464.doc - Jul 24 let 2003 - 9/11 integral inner pillars of the axle. The other of the two crossbars of the basket can be arranged to allow to carry in the basket and therefore in the cart a large capacity canister such as a keg of kerosene or heating twenty liters.   13. Hand trolley according to any one of claims 8 to 12, characterized in that it comprises a flexible bag made of textile material or otherwise flexible and resistant engaged in the casing U being, on the one hand, connected to the uprights at its upper part by two tongues each provided with a ring through which the hook of the basket strut passes, and secondly, connected to the frame hooks formed on the axle, for example by a textile ring to overlap and, on the other hand, to the crossbar of the U of the outer uprights, for example by a locking ring of the genus Velcro (registered trademark), the flexible bag being provided, if necessary, with a lid or flap closed removably by any means such as Velcro, pressure, tongue, etc.   14. Removable telescopic handle for a hand trolley and having the general shape of a U with elongated branches and made of wire, especially steel wire of 8 mm in diameter, the ends of the branches of the U being folded to 20 right angle perpendicular to the median plane of the U to form two short hooks.   15. Removable basket for a hand trolley and made of wire, in particular steel wire 6 mm in diameter and having two attachment uprights 25 and a U-shaped box formed by a double fold of the wire forming a support base on the ground or support by its opposite angle to the amount after mounting on the carriage, the box having at least two crossbeams at its base, one in the vicinity of the uprights, and where appropriate, two sleepers inclined reinforcement connecting each of the two uprights to the support base at a cross-member, the upper end (in use) free of each of the two uprights being provided with a short hook formed by folding to the inside the upper end (in use) of the amount to allow the attachment of the basket to a hole of a ring on a support frame of the basket.   16. A removable flexible bag for a hand trolley, made of resistant textile material or flexible material waterproofed or not and comprising a cover or flap capable of closing the bag easily removable manner and removable fasteners, characterized in that it comprises , at its upper part, laterally of \\ IIRSCH6 \ PATENTS \ Patents \ 21400 \ 21464.doc - July 24, 2003 - 10/11 There each side a fastening lug provided with a ring allowing the attachment of the bag by two hooks crossing the hole of the rings.   \\ HIRSCH6 \ PATENTS \ Patents \ 21400X21464.doc - July 24, 2003 - 11/11