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US20010048236A1 - Child safety seat - Google Patents

Child safety seat Download PDF

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Publication number
US20010048236A1
US20010048236A1 US09/863,628 US86362801A US2001048236A1 US 20010048236 A1 US20010048236 A1 US 20010048236A1 US 86362801 A US86362801 A US 86362801A US 2001048236 A1 US2001048236 A1 US 2001048236A1
Authority
US
United States
Prior art keywords
shoulder
strap
seat
shoulder strap
slidably mounted
Prior art date
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.)
Granted
Application number
US09/863,628
Other versions
US6457774B2 (en
Inventor
Thomas Baloga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Britax Child Safety Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US09/863,628 priority Critical patent/US6457774B2/en
Assigned to BRITAX CHILD SAFETY INC. reassignment BRITAX CHILD SAFETY INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BALOGA, THOMAS CHARLES
Publication of US20010048236A1 publication Critical patent/US20010048236A1/en
Application granted granted Critical
Publication of US6457774B2 publication Critical patent/US6457774B2/en
Assigned to BARCLAYS BANK PLC, AS SECURITY AGENT reassignment BARCLAYS BANK PLC, AS SECURITY AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRITAX CHILD SAFETY, INC.
Assigned to BRITAX CHILD SAFETY, INC. reassignment BRITAX CHILD SAFETY, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: BARCLAYS BANK PLC, AS SECURTIY AGENT
Assigned to COMMERZBANK AG, LUXEMBOURG BRANCH, AS SECURITY AGENT reassignment COMMERZBANK AG, LUXEMBOURG BRANCH, AS SECURITY AGENT SECURITY AGREEMENT SUPPLEMENT Assignors: BRITAX CHILD SAFETY, INC.
Assigned to GOLDMAN SACHS LENDING PARTNERS LLC, AS COLLATERAL AGENT reassignment GOLDMAN SACHS LENDING PARTNERS LLC, AS COLLATERAL AGENT SECURITY AGREEMENT Assignors: BRITAX CHILD SAFETY, INC.
Assigned to BRITAX CHILD SAFETY, INC. reassignment BRITAX CHILD SAFETY, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: COMMERZBANK AG, LUXEMBOURG BRANCH, AS SECURITY AGENT
Assigned to CORTLAND CAPITAL MARKET SERVICES LLC, AS SUCCESSOR AGENT reassignment CORTLAND CAPITAL MARKET SERVICES LLC, AS SUCCESSOR AGENT CONFIRMATORY ASSIGNMENT OF SECURITY INTEREST Assignors: GOLDMAN SACHS LENDING PARTNERS LLC
Assigned to LUCID TRUSTEE SERVICES LIMITED, AS SECURITY AGENT reassignment LUCID TRUSTEE SERVICES LIMITED, AS SECURITY AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRITAX CHILD SAFETY, INC.
Assigned to BRITAX CHILD SAFETY, INC. reassignment BRITAX CHILD SAFETY, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: CORTLAND CAPITAL MARKET SERVICES LLC, AS COLLATERAL AGENT
Assigned to BRITAX CHILD SAFETY, INC. reassignment BRITAX CHILD SAFETY, INC. RELEASE BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: LUCID TRUSTEE SERVICES LIMITED, AS SECURITY AGENT
Assigned to CORTLAND CAPITAL MARKET SERVICES LLC, AS COLLATERAL AGENT reassignment CORTLAND CAPITAL MARKET SERVICES LLC, AS COLLATERAL AGENT SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: BRITAX CHILD SAFETY, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B60N2/2803—Adaptations for seat belts
    • B60N2/2812—Adaptations for seat belts for securing the child to the child seat
    • 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
    • B60N2/2857—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child
    • B60N2/286—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child forward facing

Definitions

  • This invention relates to a child safety seat for use in a vehicle, of the type comprising a seat body having a seat back, a harness for a child occupant of the seat secured to the seat body and including a pair of shoulder straps extending through respective slots in the seat back to means for adjusting the effective length of the shoulder straps, a respective lap strap connected to each shoulder strap, a respective shoulder pad slidably mounted on each shoulder strap, a buckle interconnecting the lap straps at their junctions with the shoulder straps and a separable link assembly having a first link part slidably mounted on one shoulder strap and a second link part slidably mounted on the other shoulder strap, the first and second link parts having interlocking formations adapted to engage with one another.
  • U.S. Pat. No. 5,839,793 discloses a seat of this type in which the link assembly interconnects the bottom ends of the shoulder pads.
  • the link assembly serves to control the distance between the shoulder straps, reducing any tendency for the shoulder straps to slip off the shoulders of a child occupant of the seat.
  • the shoulder pads with a relatively high friction surface positioned to rest against the shoulders of the child.
  • the shoulder pads are held by tether straps at a fixed distance from the seat back regardless of adjustment of the effective length of the shoulder straps.
  • the increased friction provided by the shoulder pads reduces the tendency for the child's shoulders to slide forwards in the harness and thus reduces forward movement of the child's body.
  • the shoulder pads may be held on to the respective shoulder straps by a pair of loops, each secured near a respective end of the shoulder pad and having the shoulder strap threaded therethrough.
  • each shoulder pad has upper and lower loops attached to upper and lower ends thereof, the corresponding shoulder strap being threaded through said upper and lower loops, and a respective fixed-length tether extends between the upper end of each shoulder pad and the seat back, respective link parts being slidably mounted on each shoulder strap between the upper and lower loops.
  • the loops limit the range of movement of the link parts relative to the pads. Since the extend of movement of the pads towards the buckle is limited by the corresponding tether, the link parts are prevented from moving undesirably close to the buckle, in which position, they would be of limited effectiveness in restricting slippage of the shoulder straps to slip off the shoulders of a child occupant of the seat and the link might be at or near soft parts of the child's body. The upper loops restrict movement of the link towards the child's neck.
  • FIG. 2 is a perspective view of part of the harness of the seat shown in FIG. 1.
  • a child safety seat comprises a seat body 20 including a seat portion 21 and a back portion 22 upon and against which a child can rest.
  • a pair of straps 23 and 24 extend through slots 25 and 26 in the back portion 22 and have first opposite ends secured behind or beneath the seat.
  • the second opposite end of each strap 23 , 24 extends through a respective slot 27 , 28 in the seat portion 21 below which it is fixedly secured.
  • Respective buckle tongues 29 and 30 are slidably mounted on the straps 23 and 24 .
  • the tongues 29 and 30 engage in a buckle 32 which is secured to a first end of a crotch strap 34 , the other end of which projects through a slot 36 in the seat portion 21 where it is fixedly secured.
  • a shoulder pad 50 is slidably mounted on the shoulder portion of the strap 23 by upper and lower fabric loops 52 and 54 through which the strap 23 extends.
  • a tether 56 extends from the upper end of the shoulder pad 50 through the slot 25 to an anchorage behind the seat back 22 so as to limit the extent of movement of the shoulder pad 50 towards the buckle tongue 29 .
  • a similar shoulder pad 60 having loops 62 and 64 and a tether 66 , is mounted on the shoulder portion of the other strap 24 .
  • the shoulder strap portions 22 and 24 are linked by a quick-disconnect connector of the type described in U.S. Pat. No. 5,084,946, consisting of a male member 70 and a female member 72 .
  • the male member 70 comprises a body part 74 having two parallel slots 76 and 78 through which the straps 23 is threaded, together with a tongue 80 which engages in a buckle part 82 of the female member 72 .
  • the female member 72 also includes a body part 84 having a pair of slots 86 and 88 through which the strap 24 is threaded.
  • the male and female members 70 and 72 are fitted on to their respective straps 23 and 24 between the upper loops 52 , 62 and the lower loops 54 , 64 of the corresponding shoulder pads 50 , 60 . Consequently, sliding movement of the connector members 70 and 72 along the straps 23 and 24 is limited thereby. Since downward sliding movement of the shoulder pads 50 and 52 is limited by the tethers 56 and 66 , the extent to which the connector can move downwardly towards the tongues 29 and 30 is correspondingly limited.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)

Abstract

A child safety seat has a harness including a pair of shoulder straps extending through respective slots in the seat back and a respective lap strap connected to each shoulder strap. A shoulder pad is slidably mounted on each shoulder strap. Each shoulder pad has an upper loop attached to its upper end and a lower loop attached to its lower end, the corresponding shoulder strap being threaded through said upper and lower loops. A respective fixed-length tether extends between the upper end of each shoulder pad and the seat back. A separable link assembly has a first link part slidably mounted on one shoulder strap between the upper and lower loops and a second link part slidably mounted on the other shoulder strap between the upper and lower loops.

Description

    FIELD
  • This invention relates to a child safety seat for use in a vehicle, of the type comprising a seat body having a seat back, a harness for a child occupant of the seat secured to the seat body and including a pair of shoulder straps extending through respective slots in the seat back to means for adjusting the effective length of the shoulder straps, a respective lap strap connected to each shoulder strap, a respective shoulder pad slidably mounted on each shoulder strap, a buckle interconnecting the lap straps at their junctions with the shoulder straps and a separable link assembly having a first link part slidably mounted on one shoulder strap and a second link part slidably mounted on the other shoulder strap, the first and second link parts having interlocking formations adapted to engage with one another. [0001]
    • RELATED ART
  • U.S. Pat. No. 5,839,793 discloses a seat of this type in which the link assembly interconnects the bottom ends of the shoulder pads. The link assembly serves to control the distance between the shoulder straps, reducing any tendency for the shoulder straps to slip off the shoulders of a child occupant of the seat. [0002]
  • Since the shoulder pads and the link assembly are slidable together along the shoulder straps, they can be positioned in the desired location with the link assembly level with the child's chest. [0003]
  • It is already known to provide the shoulder pads with a relatively high friction surface positioned to rest against the shoulders of the child. The shoulder pads are held by tether straps at a fixed distance from the seat back regardless of adjustment of the effective length of the shoulder straps. In the event of sudden deceleration, for example during an accident, the increased friction provided by the shoulder pads reduces the tendency for the child's shoulders to slide forwards in the harness and thus reduces forward movement of the child's body. The shoulder pads may be held on to the respective shoulder straps by a pair of loops, each secured near a respective end of the shoulder pad and having the shoulder strap threaded therethrough. [0004]
  • SUMMARY OF THE INVENTION [0005]
  • According to the invention, in a child safety seat of the type described above, each shoulder pad has upper and lower loops attached to upper and lower ends thereof, the corresponding shoulder strap being threaded through said upper and lower loops, and a respective fixed-length tether extends between the upper end of each shoulder pad and the seat back, respective link parts being slidably mounted on each shoulder strap between the upper and lower loops. [0006]
  • With this arrangement, the loops limit the range of movement of the link parts relative to the pads. Since the extend of movement of the pads towards the buckle is limited by the corresponding tether, the link parts are prevented from moving undesirably close to the buckle, in which position, they would be of limited effectiveness in restricting slippage of the shoulder straps to slip off the shoulders of a child occupant of the seat and the link might be at or near soft parts of the child's body. The upper loops restrict movement of the link towards the child's neck.[0007]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a front view of a child safety seat in accordance with the invention; and [0008]
  • FIG. 2 is a perspective view of part of the harness of the seat shown in FIG. 1.[0009]
    • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Referring to FIG. 1, a child safety seat comprises a [0010] seat body 20 including a seat portion 21 and a back portion 22 upon and against which a child can rest. A pair of straps 23 and 24 extend through slots 25 and 26 in the back portion 22 and have first opposite ends secured behind or beneath the seat. Similarly the second opposite end of each strap 23, 24 extends through a respective slot 27, 28 in the seat portion 21 below which it is fixedly secured. Respective buckle tongues 29 and 30 are slidably mounted on the straps 23 and 24. Thus that the portions of the straps 23 and 24 between the tongues 29 and 30 and the upper slots 25 and 26 serve as shoulder strap portions, while the portions between the buckle tongues 29 and 30 and the lower slots 27 and 28 serve as lap strap portions.
  • The [0011] tongues 29 and 30 engage in a buckle 32 which is secured to a first end of a crotch strap 34, the other end of which projects through a slot 36 in the seat portion 21 where it is fixedly secured.
  • As can be more clearly seen in FIG. 2, a [0012] shoulder pad 50 is slidably mounted on the shoulder portion of the strap 23 by upper and lower fabric loops 52 and 54 through which the strap 23 extends. A tether 56 extends from the upper end of the shoulder pad 50 through the slot 25 to an anchorage behind the seat back 22 so as to limit the extent of movement of the shoulder pad 50 towards the buckle tongue 29. A similar shoulder pad 60, having loops 62 and 64 and a tether 66, is mounted on the shoulder portion of the other strap 24.
  • The [0013] shoulder strap portions 22 and 24 are linked by a quick-disconnect connector of the type described in U.S. Pat. No. 5,084,946, consisting of a male member 70 and a female member 72. The male member 70 comprises a body part 74 having two parallel slots 76 and 78 through which the straps 23 is threaded, together with a tongue 80 which engages in a buckle part 82 of the female member 72. As well as its buckle part 82, the female member 72 also includes a body part 84 having a pair of slots 86 and 88 through which the strap 24 is threaded. The male and female members 70 and 72 are fitted on to their respective straps 23 and 24 between the upper loops 52, 62 and the lower loops 54, 64 of the corresponding shoulder pads 50, 60. Consequently, sliding movement of the connector members 70 and 72 along the straps 23 and 24 is limited thereby. Since downward sliding movement of the shoulder pads 50 and 52 is limited by the tethers 56 and 66, the extent to which the connector can move downwardly towards the tongues 29 and 30 is correspondingly limited.

Claims (2)

1. A child safety seat comprising:
a seat body having a seat back,
a harness for a child occupant of the seat secured to the seat body and including a pair of shoulder straps extending through respective slots in the seat back and a respective lap strap connected to each shoulder strap,
a respective shoulder pad slidably mounted on each shoulder strap, each shoulder pad has an upper loop attached to its upper end and a lower loop attached to its lower end, the corresponding shoulder strap being threaded through said upper and lower loops,
a buckle interconnecting the lap straps at their junctions with the shoulder straps,
a separable link assembly having a first link part slidably mounted on one shoulder strap between its upper and lower loops and a second link part slidably mounted on the other shoulder strap between its upper and lower loops, the first and second link parts having interlocking formations adapted to engage with one another, and
a respective fixed-length tether extends between the upper end of each shoulder pad and the seat back.
2. A child safety seat according to
claim 1
, wherein each shoulder strap and the corresponding lap strap comprises a single strap extending slidably through a slot in a respective tongue which is engageable with the buckle.
US09/863,628 2000-06-06 2001-05-23 Child safety seat Expired - Lifetime US6457774B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/863,628 US6457774B2 (en) 2000-06-06 2001-05-23 Child safety seat

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20966200P 2000-06-06 2000-06-06
US09/863,628 US6457774B2 (en) 2000-06-06 2001-05-23 Child safety seat

Publications (2)

Publication Number Publication Date
US20010048236A1 true US20010048236A1 (en) 2001-12-06
US6457774B2 US6457774B2 (en) 2002-10-01

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Application Number Title Priority Date Filing Date
US09/863,628 Expired - Lifetime US6457774B2 (en) 2000-06-06 2001-05-23 Child safety seat

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US (1) US6457774B2 (en)
EP (1) EP1162107A3 (en)

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WO2005120910A1 (en) * 2004-06-09 2005-12-22 Britax Childcare Pty Ltd Child safety seat, shell and harness
EP1707480A1 (en) * 2005-04-01 2006-10-04 Hamax As Safety belt
GB2467973A (en) * 2009-02-24 2010-08-25 Leslie Stuart Finch Shoulder straps connector
AU2005251826B2 (en) * 2004-06-09 2012-04-26 Britax Childcare Pty Ltd Child safety seat, shell and harness
US20130161986A1 (en) * 2011-12-21 2013-06-27 Recaro Child Safety Gmbh & Co. Kg Vehicle seat device
AU2012202655B2 (en) * 2004-06-09 2014-11-27 Britax Childcare Pty Ltd Child safety seat, shell and harness
US20150191147A1 (en) * 2014-01-07 2015-07-09 Kristy L Cobb Kc chest clip having an extension guard
CN108313005A (en) * 2017-01-18 2018-07-24 郑州宇通客车股份有限公司 Seat with four point seat belt and the automobile using the seat
US10369906B2 (en) * 2016-08-22 2019-08-06 Kioma, LLC Child safety seat
US10967762B2 (en) 2016-08-22 2021-04-06 Kioma, LLC Child safety seat

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Publication number Priority date Publication date Assignee Title
WO2005120910A1 (en) * 2004-06-09 2005-12-22 Britax Childcare Pty Ltd Child safety seat, shell and harness
AU2005251826B2 (en) * 2004-06-09 2012-04-26 Britax Childcare Pty Ltd Child safety seat, shell and harness
AU2012202655B2 (en) * 2004-06-09 2014-11-27 Britax Childcare Pty Ltd Child safety seat, shell and harness
EP1707480A1 (en) * 2005-04-01 2006-10-04 Hamax As Safety belt
GB2467973A (en) * 2009-02-24 2010-08-25 Leslie Stuart Finch Shoulder straps connector
GB2467973B (en) * 2009-02-24 2013-06-19 Leslie Stuart Finch Shoulder straps connector
US20130161986A1 (en) * 2011-12-21 2013-06-27 Recaro Child Safety Gmbh & Co. Kg Vehicle seat device
US20150191147A1 (en) * 2014-01-07 2015-07-09 Kristy L Cobb Kc chest clip having an extension guard
US9840225B2 (en) * 2014-01-07 2017-12-12 Kristy L Cobb KC chest clip having an extension guard
US10369906B2 (en) * 2016-08-22 2019-08-06 Kioma, LLC Child safety seat
US10967762B2 (en) 2016-08-22 2021-04-06 Kioma, LLC Child safety seat
CN108313005A (en) * 2017-01-18 2018-07-24 郑州宇通客车股份有限公司 Seat with four point seat belt and the automobile using the seat

Also Published As

Publication number Publication date
EP1162107A2 (en) 2001-12-12
US6457774B2 (en) 2002-10-01
EP1162107A3 (en) 2002-09-04

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