WO2015112000A1 - Brouette à porte-charge en plastique amélioré et son procédé d'élaboration - Google Patents

Brouette à porte-charge en plastique amélioré et son procédé d'élaboration Download PDF

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Publication number
WO2015112000A1
WO2015112000A1 PCT/MX2014/000026 MX2014000026W WO2015112000A1 WO 2015112000 A1 WO2015112000 A1 WO 2015112000A1 MX 2014000026 W MX2014000026 W MX 2014000026W WO 2015112000 A1 WO2015112000 A1 WO 2015112000A1
Authority
WO
WIPO (PCT)
Prior art keywords
tray
plastic
truck
mold
frame
Prior art date
Application number
PCT/MX2014/000026
Other languages
English (en)
Spanish (es)
Inventor
Rodrigo MEDINA ESPINOSA
Original Assignee
Medina Espinosa Rodrigo
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Medina Espinosa Rodrigo filed Critical Medina Espinosa Rodrigo
Priority to PCT/MX2014/000026 priority Critical patent/WO2015112000A1/fr
Priority to MX2015009079A priority patent/MX2015009079A/es
Publication of WO2015112000A1 publication Critical patent/WO2015112000A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/32—Component parts, details or accessories; Auxiliary operations
    • B29C43/44—Compression means for making articles of indefinite length
    • B29C43/46—Rollers
    • 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
    • B62B1/202—Detachable buckets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/91—Heating, e.g. for cross linking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • 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
    • B62B1/206—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 and capable of being completely disassembled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/904—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using dry calibration, i.e. no quenching tank, e.g. with water spray for cooling or lubrication
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2501/00—Manufacturing; Constructional features
    • B62B2501/04—Production features
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2501/00—Manufacturing; Constructional features
    • B62B2501/06—Materials used
    • B62B2501/065—Plastics

Definitions

  • the present invention is related to the technical field of construction or gardening, more specifically in the area of • manufacture and construction of furniture.
  • the present invention is created with the interest of re-impelling the construction and / or gardening industry in one of its articles necessary for the transportation of cargo such as the caretilla.
  • the truck is a small, normally single-wheeled vehicle designed to be propelled by a single person and used for hand-carrying cargo.
  • the " single wheel" front wheel is designed to distribute the weight of the load between the wheel and the worker, which allows carrying heavier loads than if they had to be transported totally by the person. It is commonly used in the construction industry and in gardening. Its approximate capacity is' 1 70 kilos of material.
  • the two-wheeled trolley more stable at ground level, is widely used to load boxes or other things that can be stacked, while the almost universal one wheel has greater maneuverability in small spaces, on wooden planks or when a floor leaning would throw the load.
  • the one wheel also allows greater control of emptying of load.
  • the industrial truck more sophisticated, has hydraulic suspension system, two stringers, each with a small wheel -.- and another pair of front wheels rotating. The latter is used for heavier loads and in commerce it is used to transport household appliances.
  • the improved tray does not include any holes in the lower part of the tray for bolted joints in the truck frame, thus eliminating a possible source of leaks when the transport is of powders or liquids.
  • the underside of the truck tray, on the outside of the cup portion is a reinforced protruding bar that adds strength and provides a location to screw the truck tray to the truck frame. The inclusion of protruding bars in the lower part of the front part of the perimeter tray and a dumping effect, while the plastic tray maintains its strength and shape, while the liquids can easily be poured over the part. front of the trolley tray.
  • Patent US2005087958 This invention relates to an improved tire including a pair of legs that are shown in the four-bar links and are collapsible. Each leg includes an advantageously simple lock to releasably lock the leg in extended and retracted positions.
  • the truck includes a frame assembly, a wheel, a tray, and a pair of handles.
  • the frame assembly can be assembled by the manufacturer, and ⁇ the truck can be provided as a kit according to the present invention which can be assembled by the retailer or the consumer simply by joining the wheel, the tray, and the handles to the Frame set.
  • a block of support is given to know what facilitates the assembly and strengthens the legs.
  • Figure 1 is a conventional perspective side view of the truck with improved plastic tray and its manufacturing process.
  • Figure 2 is a right side view of the truck with improved plastic tray and its manufacturing process.
  • Figure 3 is a front view of the truck with improved plastic tray and its manufacturing process.
  • Figure 4 is a top view of the truck with improved plastic tray and its manufacturing process.
  • Figure 5 is a bottom view of the truck with improved plastic tray and its manufacturing process.
  • Figure 6 is an explosive view of the parts with which the truck with improved plastic tray and its manufacturing process is formed.
  • Figure 7 is an explosive view of the two plastic trays.
  • Figure 8 is a side view of the inner plastic tray.
  • Figure 9 is a top view of the lower face of the outer plastic tray.
  • This truck with improved plastic tray and its manufacturing process consists of: A truck having a support frame or body (1) preferably metallic or any other rigid material which is in turn made up of an upper portion ( 2) with a pair of bars (3) a pair of ergonomic handles (4), in the middle portion (5) of the frame or support body (1) is drilled a series of holes (6) passed through where they couple on the lower face (7) of the frame or support body (1) a pair of preferably metallic legs (8) which are coupled by means of fastening (9) already known as screws or bolts, the aforementioned pair legs (8) are subject or secured by a rectangular frame (10) made of any rigid material, which is secured by means of screws (1 1) to a last holes (12) 'are located in different areas the legs (8) said rectangular frame (10), has the function of giving greater rigidity to the legs (8); in the upper part of the frame or support body (1) in the middle portion (5) is attached by means of screw or bolt fastening (9) an open container called improved plastic tray (13) which is shaped to a outer tray (14) which on its
  • the first step is to manufacture plastic sheets of the color and measure that is required, where raw material, HDPE in ground or palletized grain, is mixed and poured into the hopper of the plastic extruder to later pass through the screw where the material reaches temperatures of 220 degrees Celsius, with a time of 1 20 where it melts and subsequently is introduced to the rollers, which will give the flat shape to the sheet and are responsible for giving the desired thickness, in the case of the sheets the Density gauge preferably used for the plastic tray of the truck is between 5.5 mm to 6 mm. Or 6 mm. to 7 mm. thick.
  • Second step Afterwards they pass to the guillotine or machine that cuts the sheet to a certain extent, said sheets already sectioned, cut to the required measure, they pass to the fermoformaclo machine;
  • the sheet is held in a frame and heated in an oven at a temperature between 1 20 to 1 30 degrees centigrade, for a time of 1 20 seconds the combination of time and exposure to the temperature of the resistances make it malleable the plastic, the resistances to the thermoforming are calibrated in some areas to 90% and in others between 70 to 65% depending on the area of the mold, when it is at its ideal point, the sheet passes to the station of the molds, "the ideal point is "when the plastic is heated, it is hanging from the frame due to gravity as the temperature rises, this phenomenon is called bell, in some plastics the bell falls, then it contracts again and that's when it goes to the next step or station.
  • the time of the first season (heating) and 2nd station (thermoformed) try to balance, if the fermoforming is longer than the heating, heat the sheet in the first station, if the heating time is shorter than the formed the pieces do not cool well. In relation to the time of forming and calibration of the machines we bring a heating cycle of 1 20 seconds.
  • thermoformed and calibrated plastic sheet accommodates in a mold called male that is convex with protuberances or protrusions being a positive mold, the plastic will be in contact with the "internal" face of the piece, the finish of the thermoforming in this mold order 'is that impurities mold and sections of assemblies with vacuum holes are copied, the face that the plastic does not touch AEL mold is used as "view of the part" because it has better finish denominándole external tray to the piece;
  • the other female mold is concave, it is a negative cavity or mold, it is used for the internal shell because the face of the plastic that touches the mold will be on the outside, the one with the best finish will be inside, and it is the one that gives sight to the inner shell, Later a seal is made between the molds and the air between the plastic and the mold is sucked by means of vacuum to form the trays;
  • Step Five they go to the clipping area where the surplus plastic is cut by means of a spinning saw, and goes to cooling;
  • Step Six subsequently the inner and outer trays are assembled and passed to the fusion machine, which is an ultrasonic shock machine calibrated to leak by means of vibrations, welding with at least 10 shock points on the entire periphery of the two trays, making the two trays join with the heat of the ultrasound or three or more forming a single piece that can be attached; Seventh step: holes are drilled in the base of the tray through which the fastening means pass.
  • the fusion machine which is an ultrasonic shock machine calibrated to leak by means of vibrations, welding with at least 10 shock points on the entire periphery of the two trays, making the two trays join with the heat of the ultrasound or three or more forming a single piece that can be attached.
  • the improved plastic tray is attached to the support body of the truck, holding it with the fastening means (screw), the truck being joined and formed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Pallets (AREA)

Abstract

La brouette selon l'invention comporte un porte-charge constitué de divers éléments en polyéthylène haute densité, assemblés les uns aux autres au moyen de leurs protubérances et de leurs cavités. Le procédé de production de la brouette comprend les étapes suivantes: 1 La fabrication de feuilles de plastique en polyéthylène haute densité, par extrusion, chauffage jusqu'à 220° C, pendant 120 secondes, avec fonte et laminage par rouleaux 2 Découpe à la mesure 3 Fixation dans un cadre et chauffage entre 120 et 130 °C pendant 120 secondes, thermoformage, passage au moule 4 Moulage des éléments du porte-charge multiple et scellage sous vide 5 Nouvelle découpe et refroidissement 6 Assemblage par points de soudure
PCT/MX2014/000026 2014-01-27 2014-01-27 Brouette à porte-charge en plastique amélioré et son procédé d'élaboration WO2015112000A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/MX2014/000026 WO2015112000A1 (fr) 2014-01-27 2014-01-27 Brouette à porte-charge en plastique amélioré et son procédé d'élaboration
MX2015009079A MX2015009079A (es) 2014-01-27 2014-01-27 Carretilla con bandeja plástica mejorada y su proceso de elaboracion.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2014/000026 WO2015112000A1 (fr) 2014-01-27 2014-01-27 Brouette à porte-charge en plastique amélioré et son procédé d'élaboration

Publications (1)

Publication Number Publication Date
WO2015112000A1 true WO2015112000A1 (fr) 2015-07-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2014/000026 WO2015112000A1 (fr) 2014-01-27 2014-01-27 Brouette à porte-charge en plastique amélioré et son procédé d'élaboration

Country Status (2)

Country Link
MX (1) MX2015009079A (fr)
WO (1) WO2015112000A1 (fr)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645225A (en) * 1986-01-07 1987-02-24 Eubanks Mack W Wheelbarrow enlargement insert
EP0283284A2 (fr) * 1987-03-17 1988-09-21 Tetra Laval Holdings & Finance SA Formage de feuilles en matière plastique
WO1991006460A1 (fr) * 1989-11-04 1991-05-16 Paton, Robert, James Accessoire pour brouette
US5658603A (en) * 1992-08-11 1997-08-19 E. Khashoggi Industries Systems for molding articles having an inorganically filled organic polymer matrix
US20030201616A1 (en) * 2002-04-26 2003-10-30 Friel Michael Vincent Wheel barrow liner
US20080079228A1 (en) * 2006-09-25 2008-04-03 Brentwood Industries, Inc. Wheelbarrow with bolt head depressions
EP1988001A2 (fr) * 2007-04-25 2008-11-05 Haemmerlin SAS Brouette ou analogue empilable par sous-éléments prémontés
US20100013179A1 (en) * 2008-07-16 2010-01-21 Liu Zhijun Wheelbarrow tray
WO2010007004A1 (fr) * 2008-07-18 2010-01-21 Stylianos Eleftheriou Installation de mise en forme de bouteilles à moyens de conformation, et procédé correspondant
US20110221147A1 (en) * 2010-09-03 2011-09-15 Ames True Temper, Inc. Triangular loop handle with three grips

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4645225A (en) * 1986-01-07 1987-02-24 Eubanks Mack W Wheelbarrow enlargement insert
EP0283284A2 (fr) * 1987-03-17 1988-09-21 Tetra Laval Holdings & Finance SA Formage de feuilles en matière plastique
WO1991006460A1 (fr) * 1989-11-04 1991-05-16 Paton, Robert, James Accessoire pour brouette
US5658603A (en) * 1992-08-11 1997-08-19 E. Khashoggi Industries Systems for molding articles having an inorganically filled organic polymer matrix
US20030201616A1 (en) * 2002-04-26 2003-10-30 Friel Michael Vincent Wheel barrow liner
US20080079228A1 (en) * 2006-09-25 2008-04-03 Brentwood Industries, Inc. Wheelbarrow with bolt head depressions
EP1988001A2 (fr) * 2007-04-25 2008-11-05 Haemmerlin SAS Brouette ou analogue empilable par sous-éléments prémontés
US20100013179A1 (en) * 2008-07-16 2010-01-21 Liu Zhijun Wheelbarrow tray
WO2010007004A1 (fr) * 2008-07-18 2010-01-21 Stylianos Eleftheriou Installation de mise en forme de bouteilles à moyens de conformation, et procédé correspondant
US20110221147A1 (en) * 2010-09-03 2011-09-15 Ames True Temper, Inc. Triangular loop handle with three grips

Also Published As

Publication number Publication date
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