Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
  • B62B1/18—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows
  • B62B1/20—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is disposed between the wheel axis and the handles, e.g. wheelbarrows involving parts being collapsible, attachable, detachable or convertible
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
  • B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
  • B25H3/00—Storage means or arrangements for workshops facilitating access to, or handling of, work tools or instruments
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
  • B62B1/10—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is intended to be transferred totally to the wheels
  • B62B1/12—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is intended to be transferred totally to the wheels involving parts being adjustable, collapsible, attachable, detachable, or convertible
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
  • B62B1/10—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is intended to be transferred totally to the wheels
  • B62B1/12—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is intended to be transferred totally to the wheels involving parts being adjustable, collapsible, attachable, detachable, or convertible
  • B62B1/125—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor in which the load is intended to be transferred totally to the wheels involving parts being adjustable, collapsible, attachable, detachable, or convertible by means of telescoping elements
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B1/00—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor
  • B62B1/008—Hand carts having only one axis carrying one or more transport wheels; Equipment therefor having a prop or stand for maintaining position
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
  • B62B2202/00—Indexing codes relating to type or characteristics of transported articles
  • B62B2202/24—Suit-cases, other luggage

Definitions

• the present invention relates to an extendable and unfoldable trolley, in particular for a tool case, of the type provided with one end of rolling wheels on the ground and at the opposite end of an operating handle, as well as fixing means. removable from luggage such as a tool case.
• Tool cases are often heavy, which can cause significant fatigue for repairers, especially when they have to carry out numerous interventions and climb several floors during their day.
• their use is difficult: the repairer often has no other resource than to put the suitcase on the ground to get the tools, which forces him to bend down in an awkward position and again constitutes a cause. notable fatigue, which can even go as far as specific pathologies.
• the purpose of the present invention is to remedy these drawbacks and to ensure, on the one hand that this kind of suitcases are easier to transport, on the other hand easier to use, saving in both cases the maximum of fatigue to their user.
• a carriage of the type defined at the start is, in accordance with the present invention, characterized in that it comprises a first and a second frame pivotally mounted one on the other, by their respective upper ends, on a common horizontal axis carried by a fitting of which the means for removably fixing said luggage are integral, the first frame carrying at its lower end said wheels while that the second ends with a clean base to rest on the ground, these two frames can be moved relative to each other between a position of relative spacing and a folded position and locked in rotation.
• these provisions will make the trolley fully foldable for its transport, for example in the trunk of a car, to make it roll on the ground like a devil by pulling on its handle, and finally bringing it into a stable position of use while keeping the suitcase or other object transported at a certain height above the ground, making its use much less tiring than before.
• a trolley according to the invention can also be characterized in that said operating handle is fixed to the end of a third frame slidably engaged in a guide tube fixed to said fitting, which will make it possible to reduce still the length of the carriage for transport in one fully folded state.
• the carriage can be characterized in that it comprises, on the one hand, first blocking means capable of keeping the three abovementioned reinforcements applied against each other when the third is in the retracted position in said guide tube, and secondly second locking means adapted to keep applied against each other the second and third frames when the latter is in the position extracted from said guide tube.
• such a carriage may also be characterized in that the first locking means comprise a lug fixed to one end of the third frame which is opposite to the handle, this lug being suitable for engaging in a notch, opening upwards, of a first plate fixed to said first frame, and in that the second locking means comprise the aforementioned lug, which is suitable for engaging in a notch, s' opening downwards and facing the previous one, a second plate fixed to said second frame.
• the carriage may also include first locking means suitable for locking the sliding of said third frame on said guide tube, on the one hand when this third frame is in the retracted position, on the other hand when it is in the extracted position , as well as second locking means suitable for locking the rotation of said fitting on the upper end of the first frame when the latter is in a position separated from the second.
• the carriage is made of steel tubes of rectangular section. These tubes form the first, second and third reinforcements, respectively referenced 1, 2 and 3, the latter carrying at its lower end a cross member 4 serving as an axle for the rolling wheels 5.
• a hoop 6 is welded to the ends of a another cross member 7, constituting a base, fixed to the lower end of the frame 2, this arch 6 widening this base 7 and which can at the same time be used to carry other loads.
• the frames 1 and 2 are pivotally mounted one on the other, this by means of an axis 8 carried between the wings of a U-shaped fitting 9 on which a guide tube is welded. 10 in which the third frame 3 can slide.
• the upper end of the frame 1 constitutes a bearing surface 11 facing an inclined plate 12 fixed to the upper end of the frame 2, for limiting the respective spacing of these two frames.
• the upper end of the third frame 3 it carries a maneuvering handle referenced at 13.
• the means of removable fixing of the luggage comprises two bars 14 fixed on the guide tube 10 and onto which a base 15 is screwed, plastic example.
• the luggage, in this case a tool case 16, can be engaged on this base by sliding by means of lateral grooves 17 cooperating with corresponding ribs provided on the bottom of the case 16.
• the carriage also comprises, as first blocking means capable of keeping applied the reinforcements 1, 2 and 3 against each other when the third is in the retracted position in the guide tube 10, a lug 18 fixed at the end of the frame 3 which is opposite to the handle 13, this lug being suitable for engaging in a notch 19, opening upwards, of a first plate 20 fixed to the first frame 1.
• the carriage comprises the aforementioned lug 18, which can engage in a notch 21, s Opening downwards and facing notch 19, a second plate 22 fixed to the second frame 2.
• a spring plunger 23 constituting means for locking the sliding of the third frame 3 on this guide tube, on the one hand when this third frame is in the retracted position, on the other hand leaves when in the extracted position.
• the end of this pusher 23, which passes through the wall of the tube 10, can engage in one or the other of two holes 24 and 25 formed on the side wall of the sliding frame 3.
• Second locking means of the same type are designed to lock the rotation of the fitting 9 on the upper end of the first frame 1 when the latter is in a position separated from the second frame 2: the end of a spring plunger 26, which passes through one of the wings of the U of the fitting, can engage in a hole 27 in the upper end of the frame 1 when the frames 1 and 2 are in the most distant relative position, the plate 12 then being supported on this end . That said, the operation of the carriage which has just been described is as follows: FIG. 1: transport position fully retracted and folded.
• the frames 1 and 3 enclose between them the frame 2 and are locked by engagement of the lug 18 in the notch 19 of the wafer 20; the end of the bolt 23 is engaged in the hole 25 of the frame 3 and blocks it in the retracted position in the tube 10.
• Figure 2 after having pulled the bolt 23, the frame 3 has been extracted by pulling on the handle 13, until the lug 18 is locked in the notch 21 of the plate 22. The carriage can then be towed like a hand truck.
• Figure 3 we have separated from one another the frames 1 and 2, which allows to leave the trolley in waiting position, resting on the ground.
• Figure 4 by pulling the bolt 23 we were able to slightly push the frame 3 back into the tube 10, enough to release the lug 18 from the notch 21 and rotate the frame 3 to the horizontal, with setting in abutment of the plate 12 on the upper end 11 of the frame 1 and automatic blocking of the end of the pusher 26 in the hole 27.
• the suitcase 16 is then in the position of use and can be opened.
• the removable fixing means may include a folded bar frame 28 provided at its ends with hooks 29 and 30 for holding the luggage by means of elastic ties of the sandoz type or the like. We could also use bars to hold the luggage.
• FIG. 7 a variant has been shown according to which the carriage can be locked at the opening in the open position of FIG. 3 thanks to the pusher 26 which, in the retracted position, serves as an upper stop for the plate

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Transportation (AREA)
• Handcart (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8850506

Family Applications (1)

Country Status (4)

Families Citing this family (2)

Family Cites Families (8)

• 2000
  • 2000-05-23 FR FR0006560A patent/FR2809291B1/fr not_active Expired - Fee Related
• 2001
  • 2001-05-21 WO PCT/FR2001/001558 patent/WO2001089906A1/fr not_active Ceased
  • 2001-05-21 AU AU2001262474A patent/AU2001262474A1/en not_active Abandoned
  • 2001-05-21 EP EP01936598A patent/EP1289819A1/de not_active Withdrawn

Non-Patent Citations (1)

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