EP2025256A1 - Régulateur de tension pour ceinture de sécurité de siège, en particulier d'un siège de sécurité pour enfant - Google Patents

Régulateur de tension pour ceinture de sécurité de siège, en particulier d'un siège de sécurité pour enfant Download PDF

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Publication number
EP2025256A1
EP2025256A1 EP07425510A EP07425510A EP2025256A1 EP 2025256 A1 EP2025256 A1 EP 2025256A1 EP 07425510 A EP07425510 A EP 07425510A EP 07425510 A EP07425510 A EP 07425510A EP 2025256 A1 EP2025256 A1 EP 2025256A1
Authority
EP
European Patent Office
Prior art keywords
cross member
strap
contrast
retention
regulator
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.)
Withdrawn
Application number
EP07425510A
Other languages
German (de)
English (en)
Inventor
Roberto Gastaldi
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.)
Sabelt SpA
Original Assignee
Sabelt SpA
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 Sabelt SpA filed Critical Sabelt SpA
Priority to EP07425510A priority Critical patent/EP2025256A1/fr
Priority to US12/185,016 priority patent/US20090044383A1/en
Publication of EP2025256A1 publication Critical patent/EP2025256A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
    • A44B11/00—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts
    • A44B11/25—Buckles; Similar fasteners for interconnecting straps or the like, e.g. for safety belts with two or more separable parts
    • A44B11/2503—Safety buckles
    • A44B11/2546—Details
    • A44B11/2553—Attachment of buckle to strap
    • A44B11/2557—Attachment of buckle to strap with strap length adjustment
    • 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
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/40—Buckles
    • Y10T24/4002—Harness
    • Y10T24/4012—Clamping
    • Y10T24/4019—Sliding part or wedge

Definitions

  • the present invention relates to a tension regulator for a safety belt of a seat, in particular to a regulator for a safety belt of a static type of a child safety seat.
  • Belts comprising a first strap and a second strap connected to one another by a tension regulator defined by a buckle.
  • the first strap is fixed to the regulator, whilst the second strap passes in a series of openings made in the regulator and has a free end that can be pulled manually so as to slide along the regulator and set the belt in tension.
  • the patent No. EP0040062 illustrates a regulator, which is fixed, at one end thereof, to the first strap and comprises a plate and a covering, which is made of plastic material and comprises a transverse edge, which is movable under the thrust of a spring in order to nip the second strap of the belt against a contrast cross member of the plate and keep the belt stationary after the tensile force has been increased by pulling the end of the second strap.
  • the known solutions of the type just described are far from satisfactory, in so far as the nipping action exerted by the movable transverse edge is not sufficient to withhold the belt when the tension of the belt is relatively low or else when the two portions of strap are not parallel for reasons of installation.
  • the second strap of the belt remains in a position substantially aligned with the slit defined by the transverse movable edge and the contrast cross member, without forming substantially any angle or fold around the contrast cross member, so that the second strap is able to slide in said slit in spite of the fact that it is subjected to the nipping action.
  • EP0040062 envisages an additional cross member, which projects laterally from the covering in order to be able to displace the movable transverse edge against the action of the spring and slacken the grip exerted by the nipping action, so that it has a relatively high number of components and requires long times and high costs for production and assembly.
  • plastic material used for structural parts, guide parts, and/or retention parts in the regulators of a known type is often subject to failure.
  • the aim of the present invention is to provide a tension regulator for a safety belt of a seat, in particular a child safety seat, that will enable a simple and inexpensive solution of the drawbacks set forth above.
  • a tension regulator for a safety belt of a seat in particular a child safety seat, the regulator comprising:
  • the reference number 1 designates as a whole a child safety seat for carrying a child in a motor vehicle.
  • the child safety seat 1 comprises a sitting surface 5 and a backrest 6, and is set on a seat 7 of the motor vehicle, for example, a rear seat.
  • the child safety seat 1 is fixed to the seat 7 via a coupling assembly 8 (known and not described in detail), of the type commonly referred to as "isofix”, and via a safety belt 9, which withholds the top end of the backrest 6 against the backrest of the seat 7, preventing the safety seat 1 from tilting forwards.
  • the belt 9 is of a static type, i.e., is without automatic roll-up devices (winders) and pretensioner safety devices, and comprises a strap 10 provided, at the bottom end, with a spring catch 11, which is fixed in a way illustrated schematically, for example is anchored by snap action, to a half-ring 12 fixed on a portion of the vehicle body or of the structure of the seat 7.
  • the strap 10 comprises an intermediate portion 14, which carries a tension indicator 31 and is connected to the end of a strap 17 via a tension regulator 19 defined by a buckle.
  • the top end of the strap 10 is defined by a portion 18, slidably inserted and withheld in the regulator 19, as will be described more fully in what follows.
  • the ends of the strap 17, instead, are defined by two loops 22, 23: the loop 22 is wound in a fixed position around a cross member 21 ( Figure 2 ) of the regulator 19, whilst the loop 23 is wound in a fixed position around an engagement element, defined for example by a pin 24, fixed to a top portion 26 of the backrest 6.
  • the regulator 19 comprises a body 32 and a slider 33, slidably coupled to one another in a rectilinear longitudinal direction 34, which is aligned with the strap 17 when the belt 9 is tensioned.
  • the body 32 is made of a single piece of steel and comprises a plane plate 35 having a rectangular through opening 36, which is defined by the cross member 21, by a cross member 37 for retention of the portion 18 and by two lateral portions 38 parallel to the direction 34.
  • the body 32 further comprises two lateral appendages 39, which extend from the edges of the portions 38 and are bent back inwards in a position facing a top surface 41 of the plate 35 so as to form, together with the portions 38, respective C-shaped portions and, hence, respective guide channels 42.
  • the channels 42 are closed, in a position adjacent to the cross member 21, by respective walls 43, which are orthogonal to the direction 34 and form part of the appendages 39.
  • the channels 42 house, at their ends, respective elastic elements 45, defined in particular by helical springs, which are arranged so that they rest, on one side, against the walls 43 and, on the other side, against respective side projections 47 of the slider 33 so as to push the slider 33 in the direction 34 away from the walls 43 and the cross member 21.
  • the body 32 moreover has a through opening 48 separated from the opening 36 by the cross member 37 and defined not only by the cross member 37, but also by a cross member 49 for guiding the portion 18, and by two lateral radiusing portions 50, which define the prolongation of the portions 38 and are inclined with respect to the portions 38 in a direction opposite to the appendages 39 and to the slider 33.
  • the cross member 49 lies in a plane parallel to the cross members 21 and 37, is parallel to the cross members 21 and 37, and has a convex curved front edge.
  • the slider 33 is defined by a steel plate, which is obtained starting from a sheet of metal plate, which is blanked to obtain the external perimetral rim and an intermediate through opening 52 and is then bent to obtain the lateral profile shown in Figure 4 .
  • the opening 52 is defined by: a rear cross member 53, having a bottom face which slides in contact with the surface 41; a transverse portion 54, facing the cross member 53 and having a front end appendage 55, which is external to the channels 42 and is bent in a direction opposite to the cross member 49 so as to form a pushbutton; and two lateral portions 56, which are substantially aligned with the projections 47.
  • the distance between the bottom face of the cross member 53 and the top face of the projections 47 and of the portion 54 approximates by defect the height of the channels 42 to guarantee guide coupling ( Figure 4 ).
  • the portion 14 enters the regulator 19 passing on top of the cross member 49.
  • the part that effectively engages the regulator 19, defined by the portion 18, passes in the opening 48, underneath the cross member 37, and then folds in order to pass through the opening 36.
  • the portion 18 is then wound around the cross member 53 of the slider 33, and then comes back into the opening 52. When it leaves the opening 52, the portion 18 enters the opening 36 again and is folded around a bottom and rear edge 60 of the cross member 37.
  • the portion 18 passes underneath the cross member 37, and then again in the opening 48 above the portion 14, where it can be pulled manually by a user for tensioning the belt 9.
  • the slider 34 can move under the guide of the channels 42 between an advanced position, in which it is pushed by the springs 45 for exerting a nipping action on the portion 18 between the cross members 37 and 53 and for withholding the portion 18 in a fixed position, and a retracted position, in which it leaves the portion 18 the space necessary for sliding between the cross members 37 and 53 and in the openings 36, 48, 52.
  • the slider 33 is translated into the retracted position by manually pressing the portion 54.
  • the opening 48 guides the portion 18 so as to keep it folded on the edge 60, which prevents the strap 18 from setting itself orthogonal to the plate 35 when the belt 9 is not tensioned and, hence, possibly sliding out of the regulator 19 even though it is gripped by the nipping action between the cross members 37 and 53.
  • Figure 5 shows the same regulator 19 applied to another safety belt of a static type, designated by the reference number 62.
  • the same reference numbers have been used as the ones already used for the corresponding components shown in Figure 1 .
  • the belt 62 is carried by the structure of the child safety seat 1.
  • the ends of the belt 62 extend on the outside of the child safety seat 1 and are fixed to respective engagement devices 64, which form part of the assembly 8 and are provided for being engaged to respective pins (not illustrated) fixed to the body or structure of the seat 7, in order to withhold the child safety seat 1 in a fixed position on the seat 7. Also in this case, by pulling a portion 18 of the belt 62, a tensile force is applied on the belt 62 in order to render the position of the safety seat 1 stable and secure.
  • the regulator 19 is without structural elements, retention elements, and guide elements made of plastic material: in fact, the cross member 49 is made of a single piece with the plate 35, on the one hand, and the cross member 53 is made of a single piece with the portion 55, on the other hand. In this way, high levels of reliability and safety, as well as a high level of simplicity of installation, are achieved. Obviously, a covering made of plastic material could be provided, but only having an aesthetic function.
  • the opening 48 enables the portion 14 to be guided in a direction substantially parallel to the direction 34 and the portion 18 to be kept folded on the edge 60 of the cross member 37 so that the portion 18 is withheld in a stable way by the nipping action exerted by the cross member 53 even when the belt 9 is not perfectly tensioned.
  • the shape of the portion 54 could be different; and/or the relative position between the cross members 49 and 37 could be different from the one illustrated; and/or the direction of winding of the portion 18 around the cross member 53 could be reversed with respect to the one described above; and/or the function of thrust of the cross member 53 in its advanced position towards the cross member 37 could be performed by a system different from the springs 45; and/or the cross member 21 could be replaced by a tab, which can be connected to an engagement device of the safety belt.

Landscapes

  • Automotive Seat Belt Assembly (AREA)
EP07425510A 2007-08-03 2007-08-03 Régulateur de tension pour ceinture de sécurité de siège, en particulier d'un siège de sécurité pour enfant Withdrawn EP2025256A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP07425510A EP2025256A1 (fr) 2007-08-03 2007-08-03 Régulateur de tension pour ceinture de sécurité de siège, en particulier d'un siège de sécurité pour enfant
US12/185,016 US20090044383A1 (en) 2007-08-03 2008-08-01 Tension regulator for a safety belt of a seat, in particular a child saftey seat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425510A EP2025256A1 (fr) 2007-08-03 2007-08-03 Régulateur de tension pour ceinture de sécurité de siège, en particulier d'un siège de sécurité pour enfant

Publications (1)

Publication Number Publication Date
EP2025256A1 true EP2025256A1 (fr) 2009-02-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425510A Withdrawn EP2025256A1 (fr) 2007-08-03 2007-08-03 Régulateur de tension pour ceinture de sécurité de siège, en particulier d'un siège de sécurité pour enfant

Country Status (2)

Country Link
US (1) US20090044383A1 (fr)
EP (1) EP2025256A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20090111A1 (it) * 2009-02-17 2010-08-18 Sabelt Spa Regolatore di tensione di una cintura di sicurezza per un sedile, in particolare per un seggiolino per il trasporto di bambini

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT12861U1 (de) 2011-05-27 2013-01-15 Aba Hoertnagl Gmbh Gurtschnalle
AT512224B1 (de) 2011-12-02 2013-08-15 Aba Hoertnagl Gmbh Schnalle
JP6535731B2 (ja) * 2015-03-31 2019-06-26 バンドー化学株式会社 固縛用張力確認具
CN105300686A (zh) * 2015-12-09 2016-02-03 常州安宝宝儿童座椅有限公司 调节器耐久性测试装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653832A (en) * 1947-05-06 1951-05-30 Matthew Harvey & Company Ltd Improvements in strap fastenings
GB1066740A (en) * 1966-03-02 1967-04-26 Kock & Sons Inc H Adjustable strap connector
EP0040062A1 (fr) * 1980-05-09 1981-11-18 Ase (Uk) Limited Dispositif de réglage de longueur de ceinture

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2178731B1 (fr) * 1961-10-04 1975-03-21 Ferodo Sa
US3522640A (en) * 1969-11-21 1970-08-04 Allied Chem Mini buckle
US3675281A (en) * 1970-04-16 1972-07-11 Allied Chem Seat belt buckle assembly
US3969795A (en) * 1974-09-16 1976-07-20 Allied Chemical Corporation Safety belt buckle
SE393523B (sv) * 1975-11-17 1977-05-16 Bengtsson Sigurd W Sjelvlasande bandspenne
US4128924A (en) * 1977-02-17 1978-12-12 Indiana Mills & Manufacturing Inc. Laminated seat belt buckle
JPS5732742Y2 (fr) * 1977-09-20 1982-07-19
JPS55101205A (en) * 1979-01-30 1980-08-01 Yoshihiko Ishiguro String camping tool
US4457052A (en) * 1982-02-19 1984-07-03 Peter Hauber Buckle for child's car seat harness
US4617705A (en) * 1985-08-05 1986-10-21 Indiana Mills & Manufacturing, Inc. Child belt buckle
US5023981A (en) * 1989-06-22 1991-06-18 Indiana Mills & Manufacturing, Inc. Belt buckle with interlocking dual tongue
SE470433B (sv) * 1992-08-06 1994-03-07 Holmbergs Fab Ab Brdr Anordning för justerbar infästning av ett band
JPH08249920A (ja) * 1995-03-08 1996-09-27 Cat I:Kk 取付装置
US5813097A (en) * 1996-12-23 1998-09-29 Indiana Mills And Manufacturing, Inc. Dual tongue buckle with independent latching
US6820310B2 (en) * 1998-08-18 2004-11-23 Indiana Mills & Manufacturing, Inc. Web adjuster and coupling
US7257866B2 (en) * 2004-10-25 2007-08-21 Wonderland Nurserygoods Co., Ltd. Strap-adjusting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB653832A (en) * 1947-05-06 1951-05-30 Matthew Harvey & Company Ltd Improvements in strap fastenings
GB1066740A (en) * 1966-03-02 1967-04-26 Kock & Sons Inc H Adjustable strap connector
EP0040062A1 (fr) * 1980-05-09 1981-11-18 Ase (Uk) Limited Dispositif de réglage de longueur de ceinture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTO20090111A1 (it) * 2009-02-17 2010-08-18 Sabelt Spa Regolatore di tensione di una cintura di sicurezza per un sedile, in particolare per un seggiolino per il trasporto di bambini

Also Published As

Publication number Publication date
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