US20040090099A1 - Process for precessing an infant seat body used in vehicles and the seat body obtained - Google Patents

Process for precessing an infant seat body used in vehicles and the seat body obtained Download PDF

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Publication number
US20040090099A1
US20040090099A1 US10/640,748 US64074803A US2004090099A1 US 20040090099 A1 US20040090099 A1 US 20040090099A1 US 64074803 A US64074803 A US 64074803A US 2004090099 A1 US2004090099 A1 US 2004090099A1
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United States
Prior art keywords
seat body
contoured
seat frame
foam
infant safety
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Legal status (The legal status 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 status listed.)
Abandoned
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US10/640,748
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Shun-Min Chen
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Individual
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Individual
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Priority to US10/640,748 priority Critical patent/US20040090099A1/en
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    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
    • B29C44/1214—Anchoring by foaming into a preformed part, e.g. by penetrating through holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49947—Assembling or joining by applying separate fastener
    • Y10T29/49966—Assembling or joining by applying separate fastener with supplemental joining
    • Y10T29/49968—Metal fusion joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent material

Definitions

  • the present invention relates to a method for the production of contoured bucket seat body of an infant safety seat used in vehicles and the seat body obtained.
  • the occupant restraint belt systems which vehicles are equipped with by the manufacturers are unsuited for use by small children. Accordingly, a variety of special child restraint systems are available and in widespread use.
  • the most common type of child restraint system is a special seat which rests on a vehicle seat and is suitably fastened in place by the vehicle restraint belt system.
  • a conventional known child safety seat 100 shown in FIG. 4 includes a contoured bucket seat body 10 , a support device 15 , and a base 19 .
  • the contoured bucket seat body 10 usually consists of a one-piece contoured plastic body 12 covered with padding 20 and fitted with a restraint belt system composed of two waist belts 70 , 72 and a crotch belt 74 .
  • the contoured plastic body 12 can be formed from a blow molding or an injection molding synthetic resin, including one or more of polypropylene, low density polyethylene, high density polyethylene, polycarbonate, and ABS plastic. Then, a sheet of prefabricated cushioning padding 20 , for example, polyurethane foam, is glued to the resulted plastic body 12 to absorb any impact so as to ensure comfort and safety features.
  • This conventional method of making a contoured bucket seat body 10 has involved (1) cutting the cushion material according to an appropriated pattern; (2) adhering the cut material. High labor costs result since, in many instances, the cutting and gluing operations are extensive and mostly has to be performed by hand. Additionally, the plastic body 12 is entirely formed of synthetic resin, the weight of seat body 10 is thus significantly increased.
  • the principal object of the present invention is to provide a low cost contoured bucket seat consisting of a foam body with an embedded frame that is constructed to provide requisite strength for safety.
  • Another object of the present invention is to provide a unitary seat that is lighter in weight than conventional contoured bucket seat.
  • Yet another object of the present invention is to provide a molding process of a low cost contoured bucket seat used by an infant safety seat for vehicles.
  • a process for molding an infant safety seat body for vehicles which comprises, forming a contoured seat frame, disposing the contoured seat frame in a mold having the shape of the infant safety seat body, pouring foam into said mold and polymerizing the foam to form a cushion substrate, and stripping the foam from the mold.
  • FIG. 1 is a plan view of a porous plate according to this invention.
  • FIG. 2 is a perspective view of a seat frame according to this invention.
  • FIG. 3 is a partially cut-away perspective view showing a general construction of an infant safety seat incorporating this invention.
  • FIG. 4 is a perspective view of a conventional infant safety seat.
  • FIG. 1 shows a plan view of a porous plate 30 integrally formed in a one-piece construction by injection molding from a synthetic resin, including one or more of polypropylene, low density polyethylene, high density polyethylene, polycarbonate, and ABS plastic, into the shape illustrated in FIG. 1 of the drawings.
  • the thickness of the plate can be in the typical range of 0.05 to 0.50 inches but normally is about 0.075 inches thick, depending on the material and application. This provides a very strong and durable product to enable an infant to be comfortably supported and protected.
  • the porous plate 30 consists of an upper back section 40 and a lower bottom section 50 seamed with a foldable border 60 , which is a straight-line indentation strip so that the upper back section 40 and the lower bottom section 50 will bend to each other to form a contoured seat.
  • the upper back section 40 further includes a pair of side portions 42 , 44 , each of which respectively intersects the upper back section 40 with a foldable border 46 , 47 formed of a straight-line indentation.
  • the lower bottom section 50 further includes a pair of arm portions 52 , 54 , each of which respectively intersects the lower bottom section 50 with a foldable border 56 , 57 formed of a straight-line indentation.
  • Each of the side portions 42 , 44 further defines a bore 48 , 49 at an intersection of a respective foldable border 46 , 47 and an edge of the side portions 42 , 44 near the foldable border 60 .
  • Each of the arm portions 52 , 54 further defines a bore 58 , 59 at an intersection of a respective foldable border 56 , 57 and an edge of the arm portion 52 , 54 near the foldable border 60 .
  • holes 32 show the porosity for inflowing the synthetic resin thereinto.
  • the porous plate 30 in FIG. 1 is folded and bonded by rivets 62 , 64 to form a seat frame 30 ′ by the steps of: folding arm portions 52 , 54 toward each other through an angle of ninety degrees along foldable borders 56 and 57 respectively; folding upper back section 40 and the lower bottom section 50 towards each other along the foldable border 60 in a gentle curve; folding side portions 42 , 44 towards each other along the foldable borders 46 and 47 respectively; and fixedly bonding the side portions 42 , 44 to the arm portions 52 , 54 by means of a rivet 62 , 64 extending through bores 48 and 58 , 49 and 59 (shown in FIG. 1) respectively.
  • the seat frame 30 ′ is thus formed as shown in FIG. 2.
  • a cushion substrate 80 is molded over the frame 30 ′ as shown in FIG. 3 by disposing the contoured seat frame 30 ′ in a mold having the shape of the infant safety seat body, pouring foam into said mold and curing the foam to form a padding, and striping the foam from the mold so that a contoured bucket seat body 90 according to this invention is completed.
  • the cushion substrate 80 is for example formed of polyurethane foam to absorb impact.
  • the polyurethane foam for molding the frame 30 ′ inflows into the holes 32 of the frame 30 ′ at the time of molding the seat body 90 so that the cushion substrate 80 may be adhered to the frame 30 ′ because of said polyurethane foam and become integral to each other.
  • the contoured bucket seat body 90 shown in FIG. 3 includes a seat bottom 82 and a backrest 84 .
  • the contoured seat body 90 further includes integral spaced side guards 86 , 86 at both sides of backrest 84 and integral spaced armrests 88 , 88 at both sides of seat bottom 82 , both extending upwardly and substantially perpendicular to backrest 84 along outer peripheral margins of the contoured bucket seat body 90 .
  • the outer peripheral margins of the contoured seat body 90 are formed with flanged portions 92 .
  • the integral spaced side guards 86 , 86 and the integral spaced armrests 88 , 88 keep an infant from rolling out of the contoured bucket seat.
  • a contoured bucket seat body for an infant safety seat which is simple, lightweight and resilient can be provided by use of the embedded frame 30 ′ of this invention.
  • the seat frame 30 ′ may be formed of a metal web.
  • the seat frame 30 ′ may be formed of an aluminum web which is formed into an appropriate configuration by conventional metal working procedures, such as welding.
  • braces may be bolted or welded between the arm portions and side portions of the frame to reduce the likelihood of warping or collapse during collisions or other accidents.

Abstract

A process for molding an infant safety seat body for vehicles includes the steps of forming a contoured seat frame, disposing the contoured seat frame in a mold having the shape of the infant safety seat body, pouring foam into said mold and polymerizing the foam to form a cushion substrate, and stripping the foam from the mold.

Description

    FIELD OF THE INVENTION
  • The present invention relates to a method for the production of contoured bucket seat body of an infant safety seat used in vehicles and the seat body obtained. [0001]
    • BACKGROUND OF THE INVENTION
  • The occupant restraint belt systems which vehicles are equipped with by the manufacturers are unsuited for use by small children. Accordingly, a variety of special child restraint systems are available and in widespread use. The most common type of child restraint system is a special seat which rests on a vehicle seat and is suitably fastened in place by the vehicle restraint belt system. [0002]
  • A conventional known [0003] child safety seat 100 shown in FIG. 4 includes a contoured bucket seat body 10, a support device 15, and a base 19. The contoured bucket seat body 10 usually consists of a one-piece contoured plastic body 12 covered with padding 20 and fitted with a restraint belt system composed of two waist belts 70, 72 and a crotch belt 74. The contoured plastic body 12 can be formed from a blow molding or an injection molding synthetic resin, including one or more of polypropylene, low density polyethylene, high density polyethylene, polycarbonate, and ABS plastic. Then, a sheet of prefabricated cushioning padding 20, for example, polyurethane foam, is glued to the resulted plastic body 12 to absorb any impact so as to ensure comfort and safety features.
  • This conventional method of making a contoured [0004] bucket seat body 10 has involved (1) cutting the cushion material according to an appropriated pattern; (2) adhering the cut material. High labor costs result since, in many instances, the cutting and gluing operations are extensive and mostly has to be performed by hand. Additionally, the plastic body 12 is entirely formed of synthetic resin, the weight of seat body 10 is thus significantly increased.
    • SUMMARY OF THE INVENTION
  • The principal object of the present invention is to provide a low cost contoured bucket seat consisting of a foam body with an embedded frame that is constructed to provide requisite strength for safety. [0005]
  • Another object of the present invention is to provide a unitary seat that is lighter in weight than conventional contoured bucket seat. [0006]
  • Yet another object of the present invention is to provide a molding process of a low cost contoured bucket seat used by an infant safety seat for vehicles. [0007]
  • The above-mentioned objects can be achieved by a process for molding an infant safety seat body for vehicles which comprises, forming a contoured seat frame, disposing the contoured seat frame in a mold having the shape of the infant safety seat body, pouring foam into said mold and polymerizing the foam to form a cushion substrate, and stripping the foam from the mold.[0008]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • The above and other objects and features of the present invention will become more apparent from the following description of the preferred embodiments thereof with reference to the accompanying drawings, throughout which take like parts are designated by like reference numerals, and wherein: [0009]
  • FIG. 1 is a plan view of a porous plate according to this invention; [0010]
  • FIG. 2 is a perspective view of a seat frame according to this invention; [0011]
  • FIG. 3 is a partially cut-away perspective view showing a general construction of an infant safety seat incorporating this invention; and [0012]
  • FIG. 4 is a perspective view of a conventional infant safety seat.[0013]
    • DETAILED DESCRIPTION OF PREFERRED EMBODIMENT
  • Referring now to FIG. 1, which shows a plan view of a [0014] porous plate 30 integrally formed in a one-piece construction by injection molding from a synthetic resin, including one or more of polypropylene, low density polyethylene, high density polyethylene, polycarbonate, and ABS plastic, into the shape illustrated in FIG. 1 of the drawings. The thickness of the plate can be in the typical range of 0.05 to 0.50 inches but normally is about 0.075 inches thick, depending on the material and application. This provides a very strong and durable product to enable an infant to be comfortably supported and protected.
  • The [0015] porous plate 30 consists of an upper back section 40 and a lower bottom section 50 seamed with a foldable border 60, which is a straight-line indentation strip so that the upper back section 40 and the lower bottom section 50 will bend to each other to form a contoured seat. The upper back section 40 further includes a pair of side portions 42, 44, each of which respectively intersects the upper back section 40 with a foldable border 46, 47 formed of a straight-line indentation. The lower bottom section 50 further includes a pair of arm portions 52, 54, each of which respectively intersects the lower bottom section 50 with a foldable border 56, 57 formed of a straight-line indentation. Each of the side portions 42, 44 further defines a bore 48, 49 at an intersection of a respective foldable border 46, 47 and an edge of the side portions 42, 44 near the foldable border 60. Each of the arm portions 52, 54 further defines a bore 58, 59 at an intersection of a respective foldable border 56, 57 and an edge of the arm portion 52, 54 near the foldable border 60. In the Figure, holes 32 show the porosity for inflowing the synthetic resin thereinto.
  • In FIG. 2, the [0016] porous plate 30 in FIG. 1 is folded and bonded by rivets 62, 64 to form a seat frame 30′ by the steps of: folding arm portions 52, 54 toward each other through an angle of ninety degrees along foldable borders 56 and 57 respectively; folding upper back section 40 and the lower bottom section 50 towards each other along the foldable border 60 in a gentle curve; folding side portions 42, 44 towards each other along the foldable borders 46 and 47 respectively; and fixedly bonding the side portions 42, 44 to the arm portions 52,54 by means of a rivet 62, 64 extending through bores 48 and 58, 49 and 59 (shown in FIG. 1) respectively. The seat frame 30′ is thus formed as shown in FIG. 2.
  • Once the [0017] frame 30′ is configured with the side portions and arm portions as mentioned, a cushion substrate 80 is molded over the frame 30′ as shown in FIG. 3 by disposing the contoured seat frame 30′ in a mold having the shape of the infant safety seat body, pouring foam into said mold and curing the foam to form a padding, and striping the foam from the mold so that a contoured bucket seat body 90 according to this invention is completed. The cushion substrate 80 is for example formed of polyurethane foam to absorb impact. The polyurethane foam for molding the frame 30′ inflows into the holes 32 of the frame 30′ at the time of molding the seat body 90 so that the cushion substrate 80 may be adhered to the frame 30′ because of said polyurethane foam and become integral to each other.
  • The contoured [0018] bucket seat body 90 shown in FIG. 3 includes a seat bottom 82 and a backrest 84. The contoured seat body 90 further includes integral spaced side guards 86, 86 at both sides of backrest 84 and integral spaced armrests 88, 88 at both sides of seat bottom 82, both extending upwardly and substantially perpendicular to backrest 84 along outer peripheral margins of the contoured bucket seat body 90. The outer peripheral margins of the contoured seat body 90 are formed with flanged portions 92. As will be apparent, the integral spaced side guards 86, 86 and the integral spaced armrests 88, 88 keep an infant from rolling out of the contoured bucket seat. Thus a contoured bucket seat body for an infant safety seat which is simple, lightweight and resilient can be provided by use of the embedded frame 30′ of this invention.
  • It will be understood by those skilled in the art that the [0019] seat frame 30′ may be formed of a metal web. For example, the seat frame 30′ may be formed of an aluminum web which is formed into an appropriate configuration by conventional metal working procedures, such as welding. In this case, braces may be bolted or welded between the arm portions and side portions of the frame to reduce the likelihood of warping or collapse during collisions or other accidents.
  • Although the present invention has been described in terms of specific embodiments, it is anticipated that alterations and modification thereof will no doubt occur to those skilled in the art. It is intended, therefore, that the following claims be interpreted as covering all such alterations and modifications as fall within the spirit and scope of the invention. [0020]

Claims (7)

What is claimed is:
1. A process for preparing an infant safety seat body used in vehicles, comprising the steps of:
forming a contoured seat frame;
disposing the contoured seat frame in a mold having the shape of the infant safety seat body;
pouring foam into said mold and polymerizing the foam to form a cushion substrate; and
striping the foam from the mold.
2. The process according to claim 1, wherein said step of forming said contoured seat frame is carried out by the steps of:
injection molding a synthetic resin into a porous plate; and
folding and bonding said porous plate so as to form said contoured seat frame.
3. The process according to claim 1, wherein said step of forming said contoured seat frame is carried out by welding a metal web.
4. An infant safety seat body used in vehicles, comprising:
a contoured seat frame; and
a cushion substrate integrally molded with said seat frame by polymerizing a foam material.
5. The infant safety seat body according to claim 4, wherein said contoured seat frame is formed by folding and bonding a porous plate so as to form said contoured seat frame.
6. The infant safety seat body according to claim 5, wherein said porous plate is formed by injection molding a synthetic resin.
7. The infant safety seat body according to claim 4, wherein said contoured seat frame is formed by welding a metal web.
US10/640,748 2002-10-28 2003-08-14 Process for precessing an infant seat body used in vehicles and the seat body obtained Abandoned US20040090099A1 (en)

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US10/640,748 US20040090099A1 (en) 2002-10-28 2003-08-14 Process for precessing an infant seat body used in vehicles and the seat body obtained

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Cited By (12)

* Cited by examiner, † Cited by third party
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EP1609577A1 (en) * 2004-06-21 2005-12-28 L & L Products, Inc. Improvements in or relating to overmoulding
US20070138855A1 (en) * 2005-12-15 2007-06-21 Recaro Gmbh & Co. Kg Vehicle seat, in particular a sports seat
US20090091167A1 (en) * 2007-10-04 2009-04-09 Think/Thing Child seating system and method
US20100117416A1 (en) * 2008-11-12 2010-05-13 Wonderland Nurserygoods Co., Ltd. Child seat
US20110005542A1 (en) * 2009-07-10 2011-01-13 Franz Joann Porous artificial fingernail and method for applying the same
US20150329033A1 (en) * 2012-12-05 2015-11-19 Johnson Controls Technology Company System and method for manufacturing a vehicle interior component having an embedded radio frequency identification tag
US20150375641A1 (en) * 2014-05-09 2015-12-31 Hts Hans Torgersen & Sonn As Child safety seat with side protection
AU2015200846B2 (en) * 2011-09-06 2016-10-27 Hbg Ip Holding Pty Limited A Child Restraint for a Vehicle
AU2016101119B4 (en) * 2011-09-06 2017-02-02 Hbg Ip Holding Pty Limited A Child Restraint for a Vehicle
GB2564534A (en) * 2017-05-18 2019-01-16 Wonderland Switzerland Ag Manufacturing method for a car safety seat
GB2565182A (en) * 2017-05-18 2019-02-06 Wonderland Switzerland Ag Car safety seat
WO2020072944A1 (en) * 2018-10-04 2020-04-09 Monahan Products, LLC Child safety seat and method of manufacturing same

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US20060008615A1 (en) * 2004-06-21 2006-01-12 L&L Products, Inc. Overmoulding
EP1609577A1 (en) * 2004-06-21 2005-12-28 L & L Products, Inc. Improvements in or relating to overmoulding
US20070138855A1 (en) * 2005-12-15 2007-06-21 Recaro Gmbh & Co. Kg Vehicle seat, in particular a sports seat
US20090091167A1 (en) * 2007-10-04 2009-04-09 Think/Thing Child seating system and method
US20100117416A1 (en) * 2008-11-12 2010-05-13 Wonderland Nurserygoods Co., Ltd. Child seat
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AU2016101119B4 (en) * 2011-09-06 2017-02-02 Hbg Ip Holding Pty Limited A Child Restraint for a Vehicle
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US20150329033A1 (en) * 2012-12-05 2015-11-19 Johnson Controls Technology Company System and method for manufacturing a vehicle interior component having an embedded radio frequency identification tag
US20150375641A1 (en) * 2014-05-09 2015-12-31 Hts Hans Torgersen & Sonn As Child safety seat with side protection
EP2993078B1 (en) 2014-09-05 2017-03-22 HTS Hans Torgersen & Sonn AS Side impact protection for child safety seats
GB2565182B (en) * 2017-05-18 2022-03-16 Wonderland Switzerland Ag Car safety seat
GB2565182A (en) * 2017-05-18 2019-02-06 Wonderland Switzerland Ag Car safety seat
US10596931B2 (en) * 2017-05-18 2020-03-24 Wonderland Switzerland Ag Car safety seat
DE102018207747B4 (en) 2017-05-18 2021-07-08 Wonderland Switzerland Ag child seat
GB2564534A (en) * 2017-05-18 2019-01-16 Wonderland Switzerland Ag Manufacturing method for a car safety seat
GB2599885A (en) * 2017-05-18 2022-04-13 Wonderland Switzerland Ag Car safety seat
US11447050B2 (en) 2017-05-18 2022-09-20 Wonderland Switzerland Ag Manufacturing method for a car safety seat
US11447051B2 (en) 2017-05-18 2022-09-20 Wonderland Switzerland Ag Manufacturing method for a child carrying device
GB2599885B (en) * 2017-05-18 2022-11-09 Wonderland Switzerland Ag Car safety seat
GB2564534B (en) * 2017-05-18 2023-01-18 Wonderland Switzerland Ag Manufacturing method for a car safety seat
DE102018010430B3 (en) 2017-05-18 2023-07-20 Wonderland Switzerland Ag child seat
DE102018207778B4 (en) 2017-05-18 2024-01-11 Wonderland Switzerland Ag Manufacturing process for a child vehicle seat
WO2020072944A1 (en) * 2018-10-04 2020-04-09 Monahan Products, LLC Child safety seat and method of manufacturing same

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