CA2639517A1 - Latch mechanism for a child car seat - Google Patents

Latch mechanism for a child car seat Download PDF

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Publication number
CA2639517A1
CA2639517A1 CA002639517A CA2639517A CA2639517A1 CA 2639517 A1 CA2639517 A1 CA 2639517A1 CA 002639517 A CA002639517 A CA 002639517A CA 2639517 A CA2639517 A CA 2639517A CA 2639517 A1 CA2639517 A1 CA 2639517A1
Authority
CA
Canada
Prior art keywords
seat
locking
latch
car seat
base member
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
CA002639517A
Other languages
French (fr)
Other versions
CA2639517C (en
Inventor
James M.F. Hutchinson
Robert E. Haut
Curtis M. Hartenstine
Gregory S. Sellers
John T. Sims
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.)
Wonderland Nurserygoods Co Ltd Taiwan
Original Assignee
Wonderland Nurserygoods Co Ltd Taiwan
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
Priority claimed from US11/953,062 external-priority patent/US7735921B2/en
Application filed by Wonderland Nurserygoods Co Ltd Taiwan filed Critical Wonderland Nurserygoods Co Ltd Taiwan
Priority to CA2760710A priority Critical patent/CA2760710C/en
Priority to CA2760480A priority patent/CA2760480C/en
Publication of CA2639517A1 publication Critical patent/CA2639517A1/en
Application granted granted Critical
Publication of CA2639517C publication Critical patent/CA2639517C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/04—Hairdressers' or similar chairs, e.g. beauty salon chairs
    • A47C1/11—Accessories not otherwise provided for, e.g. seats for children
    • 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
    • B60N2/2821—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part
    • 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
    • B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
    • 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
    • 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
    • B60N2/2863—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle characterised by the peculiar orientation of the child backward facing
    • 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
    • B60N2/2872—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with side rests
    • 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
    • B60N2/2875—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle inclinable, as a whole or partially
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/01—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents
    • B60R21/015—Electrical circuits for triggering passive safety arrangements, e.g. airbags, safety belt tighteners, in case of vehicle accidents or impending vehicle accidents including means for detecting the presence or position of passengers, passenger seats or child seats, and the related safety parameters therefor, e.g. speed or timing of airbag inflation in relation to occupant position or seat belt use
    • B60R21/01556—Child-seat detection systems
    • 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
    • B60N2/90—Details or parts not otherwise provided for
    • B60N2/919—Positioning and locking mechanisms
    • B60N2002/952—Positioning and locking mechanisms characterised by details of the locking system
    • B60N2002/957—Positioning and locking mechanisms characterised by details of the locking system the locking system prevents an abnormal or wrong mounting situation, i.e. deployment or functioning of a seat part being prevented if the seat or seat part is not properly mounted

Abstract

A latching mechanism for a car seat that is mountable on a separable base member provides a positive locking of the car seat to the base member.
The latch mechanism has a member that is positioned in the seat portion of the car seat to pivot upwardly when the latch mechanism is disengaged. The seating of a child on the seat portion requires the latch mechanism to be retracted into the seat portion, which corresponds to the locking of the latch mechanism. The latch mechanism includes four helical spools rotated by the pivotal movement of the latch lever to cause linear movement of the locking pins into engagement with the base member. A latch indicator has a pre-latch sensor that indicates proper positioning of the seat member and a latch sensor that indicates an engagement of the locking pins. An indicator light illuminates when the seat member is properly latched.

Claims (30)

1. A car seat for transporting a child in a vehicle, comprising:
a base member connectable to a vehicle seat;

a seat member detachably connectable to said base member, said seat member having a seat portion on which said child is positioned when utilizing said car seat;

a locking apparatus movable between a locked position inter-engaged between said base member and said seat member to secure the seat member to said base member and a released position to permit said seat member to be removed from said base member, said locking apparatus including first and second locking pins linearly movable between said locked and released positions; and an actuation apparatus operably connected to said locking apparatus to affect simultaneous movement of said first and second locking pins between said locked and released positions.
2. The car seat of Claim 1 wherein said actuation apparatus is operatively connected to one of said first and second locking pins to affect movement thereof between said locked and released positions, said locking apparatus further comprising a connecting link interconnecting said first and second locking pins to affect said simultaneous movement thereof.
3. The car seat of Claim 2 wherein said first and second locking pins form a portion, respectively, of front and rear locking devices, each of said front and rear locking devices comprises:

a pair of opposing rotatable spools, each spool being formed with a helical slot;

one of said locking pins associated with each said spool and being movable between said locked position and said released position; and an actuation pin engaged with each respective said helical slot and with the corresponding said locking pin to affect linear movement of said locking pin between said locked and released positions in response to a rotational movement of said spool.
4. The car seat of Claim 3 wherein each said locking pin is aligned with an axis of rotation of the corresponding said spool, the corresponding said actuation pin passing through said locking pin to be engagable with linear slots in said seat member on opposing sides of said spool to confine movement of said actuation pin into a linear direction.
5. The car seat of Claim 4 wherein said actuation apparatus includes an actuation knob affixed to a transverse actuation shaft and a drive link transferring rotational movement of said actuation shaft to each said front spool.
6. The car seat of Claim 5 wherein said actuation apparatus further includes a pair of flag members mounted on said actuation shaft and being located on said seat portion, said flag members being recessed into said seat member when in said locked position and pivoted upwardly when in said released position, said drive links interconnecting said flag members and a corresponding said rotatable spool.
7. The car seat of any one of Claims 1 to 6 further comprising a latch indicator showing both a movement of said locking device into said locked position and a proper positioning of said seat member on said base member.
8. The car seat of Claim 7 wherein said indicator comprises:

a pre-latch sensor co-operable with said seat member and said base member to indicate said proper positioning of said seat member on said base member;

a latch sensor co-operable between said actuation apparatus and said seat member to indicate the movement of said locking device into said locked position; and an indicator to show the indication of both said pre-latch and said latch sensors.
9. The car seat of Claim 8 wherein both said pre-latch sensor and said latch sensor are proximity sensors that produce a signal indicative of a magnetic member being within a sensing range of said proximity sensors, said indicator being an LED.
10. The car seat of Claim 9 wherein a first magnetic member is positioned on said base member to be co-operable with said pre-latch proximity sensor mounted on said seat member, a second magnetic member being located on said actuation apparatus to be co-operable with said latch sensor mounted on said seat member, said LED indicator being operative to flash a first signal representative of said pre-latch proximity sensor coming into sensing range of said first magnetic member, and to flash a second signal representative of said latch proximity sensor coming into sensing range of said second magnetic member after said first signal has been demonstrated.
11. The car seat of any one of Claims 7 to 10 wherein said latch indicator comprises a pivot member rotatable about an axis of rotation and being located to be engaged by one of said locking pins to affect rotation thereof when said locking pin is moved into said locked position.
12. The car seat of Claim 11 wherein said locking pins are supported on said seat member, said base member including openings therein alignable, respectively, with a corresponding said locking pin, said pivot member being located on said base member such that the movement of the corresponding said locking pin engages said pivot member when engaged with the corresponding said opening.
13. The car seat of Claim 12 wherein said pivot member has an exterior surface exposed through a hole in said base member, said exterior surface being divided into a first section and a second section, said first section including indicia representing said locking pin being in said leased position, said second section including indicia representing said locking pin being in said locked position.
14. The car seat of any one of Claims 7 to 13 further comprising a release indicator coupled to said actuation apparatus to provide a visual indication of the movement of said locking apparatus into said released position.
15. In a car seat having a base member connectable to a vehicle seat and a seat member detachably connectable to said base member, said seat member having a seat portion on which a child is positioned when utilizing said car seat, a latching mechanism comprising:

a locking apparatus movable between a locked position in which said seat member is engaged with said base member and a released position in which said seat member can be disengaged from said base member;

an actuation apparatus operably connected to said locking device to affect movement thereof between said locked and released positions; and a release indicator coupled to said actuation apparatus to provide a visual indication of the movement of said locking device into said released position.
16. The car seat of Claim 15 wherein said release indicator is a portion of said actuation apparatus that is recessed into said seat portion when said locking device is in said locked position and pivoted upwardly from said seat portion when said locking device is in said released position so that said child cannot be seated on said seat portion of said seat member when said locking device is not is said locked position.
17. The car seat of Claim 16 wherein said portion of said actuation apparatus is a latch lever that is connected to said locking device to affect movement of said locking apparatus between said locked and released positions.
18. The car seat of Claim 16 or 17 wherein said portion of said actuation apparatus is a pivot flag that is mounted on a transverse actuation shaft rotatable to affect movement of said locking device, said pivot flag being pivoted in response to the movement of said locking apparatus between said locked and released positions.
19. The car seat of any one of Claims 16 to 18 wherein said locking apparatus comprises:

a front locking apparatus movably supported on said seat portion;

a rear locking apparatus movably supported on said seat portion; and a connecting link interconnecting said front and rear locking apparatus to affect simultaneous movement thereof when said actuation apparatus is manipulated to affect movement of said front and rear apparatus between said locked and released positions.
20. The car seat of Claim 19 wherein each of said front and rear locking apparatus comprises:

a pair of opposing rotatable spools, each spool being formed with a helical slot;

a locking pin associated with each said spool and being movable between said locked position and said released position; and an actuation pin engaged with each respective said helical slot and with the corresponding said locking pin to affect linear movement of said locking pin between said locked and released positions in response to a rotational movement of said spool.
21. The car seat of Claim 20 wherein each said locking pin is aligned with an axis of rotation of the corresponding said spool, the corresponding said actuation pin passing through said locking pin to be engagable with linear slots in said seat member on opposing sides of said spool to confine movement of said actuation pin into a linear direction, said actuation apparatus including an actuation knob affixed to a transverse actuation shaft to affect rotational movement thereof, and a drive link transferring rotational movement of said actuation shaft to each said front spool.
22. A car seat for transporting a child in a vehicle, comprising:
a base member connectable to a vehicle seat;

a seat member detachably connectable to said base member, said seat member having a seat portion on which said child is positioned when utilizing said car seat;

a locking apparatus movable between a locked position inter-engaged between said base member and said seat member to secure said seat member to said base member and a released position to permit said seat member to be disengaged from said base member;

an actuation apparatus operably connected to said locking apparatus to affect movement thereof between said locked and released positions; and a latch indicator that displays a signal that said locking apparatus has been moved into said locked position after a proper positioning of said seat member on said base member.
23. The car seat of Claim 22 wherein said latch indicator comprises:
a pre-latch sensor co-operable with said seat member and said base member to indicate said proper positioning of said seat member on said base member;

a latch sensor co-operable between said actuation apparatus and said seat member to indicate the movement of said locking apparatus into said locked position; and an LED indicator that illuminates to display the indication of both said pre-latch and said latch sensors.
24. The car seat of Claim 23 wherein both said pre-latch sensor and said latch sensor are proximity sensors that produce a signal indicative of a magnetic member being within a sensing range of said proximity sensors.
25. The car seat of Claim 24 wherein a first magnetic member is positioned on said base member to be co-operable with said pre-latch proximity sensor mounted on said seat member, a second magnetic member being located on said actuation apparatus to be co-operable with said latch sensor mounted on said seat member.
26. The car seat of Claim 25 wherein said LED indicator flashes a first signal representative of said pre-latch proximity sensor coming into sensing range of said first magnetic member, and a second signal representative of said latch proximity sensor coming into sensing range of said second magnetic member after said first signal has been demonstrated.
27. The car seat of any one of Claims 22 to 26 wherein said locking apparatus includes first and second locking pins linearly movable between said locked and released positions, said latch indicator comprising:

a pivot member rotatable about an axis of rotation and being located to be engaged by one of said locking pins to affect rotation thereof when said locking pin is moved into said locked position.
28. The car seat of Claim 27 wherein said locking pins are supported on said seat member, said base member including openings therein alignable, respectively, with a corresponding said locking pin, said pivot member being located on said base member such that the movement of the corresponding said locking pin engages said pivot member when engaged with the corresponding said opening.
29. The car seat of Claim 28 wherein said pivot member has an exterior surface exposed through a hole in said base member, said exterior surface being divided into a first section and a second section, said first section including indicia representing said locking pin being in said leased position, said second section including indicia representing said locking pin being in said locked position.
30. The car seat of Claim 29 wherein each said locking pin has a pivot member associated therewith to provide a indication that each respective locking pin has been moved into said locked position.
CA2639517A 2007-09-12 2008-09-09 Latch mechanism for a child car seat Active CA2639517C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2760710A CA2760710C (en) 2007-09-12 2008-09-09 Child car seat
CA2760480A CA2760480C (en) 2007-09-12 2008-09-09 Latch mechanism for a child car seat

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US99347307P 2007-09-12 2007-09-12
US60/993,474 2007-09-12
US11/953,062 2007-12-09
US11/953,062 US7735921B2 (en) 2006-12-12 2007-12-09 Reversible child car seat with separable base member

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CA2760710A Division CA2760710C (en) 2007-09-12 2008-09-09 Child car seat
CA2760480A Division CA2760480C (en) 2007-09-12 2008-09-09 Latch mechanism for a child car seat

Publications (2)

Publication Number Publication Date
CA2639517A1 true CA2639517A1 (en) 2009-03-12
CA2639517C CA2639517C (en) 2012-04-24

Family

ID=39930021

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2639517A Active CA2639517C (en) 2007-09-12 2008-09-09 Latch mechanism for a child car seat

Country Status (5)

Country Link
US (1) US7819472B2 (en)
JP (1) JP5388516B2 (en)
CN (1) CN101391583B (en)
CA (1) CA2639517C (en)
GB (1) GB2452844B (en)

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CN101391583A (en) 2009-03-25
CN101391583B (en) 2011-01-19
GB2452844B (en) 2010-03-17
GB2452844A (en) 2009-03-18
JP5388516B2 (en) 2014-01-15
GB0816658D0 (en) 2008-10-22
US7819472B2 (en) 2010-10-26
JP2009113791A (en) 2009-05-28
US20090001791A1 (en) 2009-01-01

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