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US3851360A - Buckle for safety belts - Google Patents

Buckle for safety belts Download PDF

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Publication number
US3851360A
US3851360A US00222858A US22285872A US3851360A US 3851360 A US3851360 A US 3851360A US 00222858 A US00222858 A US 00222858A US 22285872 A US22285872 A US 22285872A US 3851360 A US3851360 A US 3851360A
Authority
US
United States
Prior art keywords
buckle
tongue
latch member
push button
locking mechanism
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.)
Expired - Lifetime
Application number
US00222858A
Other languages
English (en)
Inventor
H Minolla
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.)
Klippan GmbH Hamburg
Original Assignee
Klippan GmbH Hamburg
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 DE19712109460 external-priority patent/DE2109460C3/de
Application filed by Klippan GmbH Hamburg filed Critical Klippan GmbH Hamburg
Application granted granted Critical
Publication of US3851360A publication Critical patent/US3851360A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A44B11/2507—Safety buckles actuated by a push-button
    • A44B11/2523—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and in the same direction as the fastening action
    • 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
    • A44B11/2507—Safety buckles actuated by a push-button
    • A44B11/2511—Safety buckles actuated by a push-button acting perpendicularly to the main plane of the buckle, e.g. placed on the front face of the buckle
    • 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
    • A44B11/2507—Safety buckles actuated by a push-button
    • A44B11/2515—Safety buckles actuated by a push-button acting parallel to the main plane of the buckle and perpendicularly to the direction of the fastening action
    • 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.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45623—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor
    • Y10T24/45639—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including pivotally connected element on receiving member
    • Y10T24/45654—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including pivotally connected element on receiving member for shifting slidably connected and guided, nonself-biasing interlocking component
    • 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.
    • Y10T24/45—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock]
    • Y10T24/45225—Separable-fastener or required component thereof [e.g., projection and cavity to complete interlock] including member having distinct formations and mating member selectively interlocking therewith
    • Y10T24/45602—Receiving member includes either movable connection between interlocking components or variable configuration cavity
    • Y10T24/45723—Receiving member includes either movable connection between interlocking components or variable configuration cavity having slidably connected, nonself-biasing interlocking component
    • Y10T24/45743—Requiring manual force thereon to interlock or disengage

Definitions

  • the push button must be operated to allow insertion of the slide-in tongue.
  • Buckles of this type do not allow an advanta- SUMMARY OF THE INVENTION
  • the invention proposes a buckle having a pair of similar mutually spaced lock plates each of which provided with a guide groove extending perpendicularlylto the slide-in direction of the slide-in tongue, and further a latch member slidably received in these grooves-the latch member biased by a spring and coupled directly to a push button adapted to move the slide-in tongue into an unlocked position when pressed down perpendicularly to the slide-in direction of the slide-in tongue in a direction parallel to an upper surface of the housing.
  • a buckle of this type may be more easily and safely manipulated and may be designed in a very shallow configuration by using a minimum number of components.
  • the force required for unlocking the buckle may be reduced still further when the sliding surface of the indentations in the slide-in tongue and the sliding surface'of the latch member which surfaces are in the locking position in mutual engagement are obliquely inclined downwardly wherein the sliding surfaces preferably are at an inclination of about 7 with respect to a horizontal line (when the longitudinal center line of the buckle is coextensive with the vertical).
  • Such an angle of inclination allows to substantially reduce the friction forces between latch member and slide-in tongue which must be overcome when unlocking the buckle.
  • the simplicity of the buckle design may be further enhanced by using in the buckle only a single helical spring having two free legs one of which engages the lower edge of the slide-in tongue and the other of which engages the latch member.
  • a spring of this type may perform three functions, i.e., to automatically eject the slide-in tongue when depressing the push button, to secure the latch member in the locking position and to reset the push button after the buckle has been opened.
  • the push button is provided with a head portion and preferably received with this head portion in mating recesses of the pair of lock plates so'that the upper surface of the push button is flush with the housing surface.
  • the slide-in tongue is retained by a single latch member disposed on one side of the tongue it will be advantageous if the slide-in tongue is made symmetrical with respect to a longitudinal center line of the tongue thus allowing to introduce the tongue into the buckle with either the upper or the lower surface of the tongue facing upwardly or respectively downwardly.
  • FIG. 1 is a longitudinal section view of the safety belt buckle with the slide-in tongue inserted therein, according to the present invention
  • FIG. 2 is a lateral sectional view of the safety belt buckle of FIG. I.
  • FIG. 3 is a longitudinal sectional view of the safety belt buckle with the slide-in-tongue being disengaged.
  • the safety belt buckle shown in the drawing includes a pair of similar lock plates 1 and 2. These two lock plates are held in a mutual spaced relationship parallel to each other by means of connecting lugs 3 and a sleeve 4. On their outer surfaces the lock plates 1 and 2 are enclosed by a housing 5 made of a plastic material. This housing 5 is provided at its upper edge portion with an opening 6 for inserting a slide-in tongue 7. In the region of this opening 6 the two lock plates 1 and 2 are bent outwardly in the form of a hopper as may be seen in FIG. 2, in order to facilitate the insertion of the slide-in tongue and to guide the same.
  • the slide-in tongue 7 is rigidly connected at a mounting 8 with a safety belt not shown in the drawing, and is furthermore tapered towards its lower end and symmetrical with respect to the longitudinal center line 9.
  • the two outwardly facing edge portions of the slide-in tongue 7 are each provided with a recess 10in the form of an indentation
  • the lower edges of these indentations are obliquely inclined with respect to a horizontal line and enclose therewith an angle a of 7 30.
  • Each of the pair of lock plates 1 and 2 is provided with a guide groove 12 extending perpendicularly to the longitudinal center line 9. These grooves 12 serve to slidably and reciprocally guide a latch member 13.
  • a pair of webs l4 and 15 provided at the lower end of a push button 16 are rigidly connected to the latch member 13.
  • the push button 16 has a head portion which is received in mating recesses 17 of the two lock plates 1 and 2 so that the head portion of the push button does not project beyond the outer surface of the casing 5.
  • a spring 18 engages with the end of its free leg 19 the outer surface of the latch member 13 and biases the latch member towards the longitudinal center line 9.
  • the second leg 20 of the helical spring 18 is provided with an offset or bent portion guided in a groove 21 and engages the lower edge of the slide-in tongue 7.
  • buckle furthermore includes a spacer 22 made of a plastic material which is inserted between the pair of lock plates 1 and 2 and an abutment or opposed support member 23 for the slide-in tongue 7.
  • the push button 16 will be pressed into the housing 5 in the direction shown by the arrow 24. During this movement the webs l4 and 15 of the push button 16 entrain the latch member 13 against the opposing force exerted by the leg 19 of the spring 18. Since thelatch member 13 is likewise provided at its lower edge with an inclined sliding surface similar to the lower edge of an indentation 10 a relatively low pressure force will be sufficient to open the safety belt buckle. As soon as the latch member 13 has been completely disengaged from the indentation 10 the pressure appliedby the leg 20 of the spring 18 against the lower surface of the slide-in tongue 7 results in the ejection of the slide-in tongue 7 in an upward vertical direction.
  • the spring 18 includes two helical coils and is arranged such that when ejecting the slidein tongue 7 the one coil 25 moves upwardly together with the tongue while the second coil 26 of the spring 18 abuts against a support surface of the spacer 22.
  • a buckle for a safety belt comprising a housing enclosing a locking mechanism, a push button mounted in said housing and disengaging said locking mechanism, said housing receiving a flat tongue engaged by said locking mechanism and connected to the safety belt when directed into the buckle, said tongue provided with at least one indentation therein, said locking mechanism comprising a pair of lock plates, each provided with a guide groove extending perpendicularly to the direction of entry of the tongue in the buckle, said tongue moving in said buckle between said lock plates, and further comprising a latch member for reception in said indentation for engaging said tongue in said buckle slidably received in said grooves, the latch member biased in the locking position by a spring mounted in the buckle and coupled directly to the push button for movement on depression of said button perpendicularly to the movement of said tongue in said buckle, said buckle further comprising a pair of webs rigidly connecting said latch member to said push button, each web of said pair of webs being arranged parallel to said lock plates and on the outside of one of said pair of lock plates
  • a buckle for a safety belt comprising a housing enclosing a locking mechanism, a push button mounted in said housing and disengaging said locking mechanism, said housing receiving a flat tongue engaged by said locking mechanism and connected to the safety belt when directed into the buckle, said tongue provided with at least one indentation therein, said locking mechanism comprising a pair of lock plates, each provided with a guide groove extending perpendicularly to the direction of entry of the tongue in the buckle, said tongue moving in said buckle between said lock plates, and further comprising a latch member for reception in said indentation for engaging said tongue in said buckle slidably received in said grooves, the latch member biased in the locking position by a spring mounted in the buckle and coupled directly to the push button for movement on depression of said button perpendicularly to the movement of said tongue in said buckle, said spring having two integral free legs, one of which engages the lower edge of said tongue and the other of which engages said latch member.

Landscapes

  • Buckles (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Package Frames And Binding Bands (AREA)
US00222858A 1971-02-27 1972-02-02 Buckle for safety belts Expired - Lifetime US3851360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712109460 DE2109460C3 (de) 1971-02-27 VerschluBschnalle für einen Sicherheitsgurt, insbesondere für Kraftfahrzeuge

Publications (1)

Publication Number Publication Date
US3851360A true US3851360A (en) 1974-12-03

Family

ID=5800060

Family Applications (1)

Application Number Title Priority Date Filing Date
US00222858A Expired - Lifetime US3851360A (en) 1971-02-27 1972-02-02 Buckle for safety belts

Country Status (9)

Country Link
US (1) US3851360A (es)
BE (1) BE779537A (es)
CA (1) CA961242A (es)
CH (1) CH533433A (es)
ES (1) ES178215Y (es)
GB (1) GB1354048A (es)
IT (1) IT948717B (es)
NL (1) NL7202000A (es)
SE (1) SE388779B (es)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033015A (en) * 1973-11-15 1977-07-05 Klippan Gmbh Hamburg Lock for a safety belt
DE2619720A1 (de) * 1976-05-04 1977-11-17 Repa Feinstanzwerk Gmbh Schloss fuer sicherheitsgurte in kraftfahrzeugen
US4060879A (en) * 1975-08-19 1977-12-06 Takata Kojyo Co., Ltd Seat belt buckle
US4208771A (en) * 1978-01-19 1980-06-24 Repa Feinstanzwerk Gmbh Lock for safety belts in motor vehicles
US4374449A (en) * 1980-09-25 1983-02-22 Allied Corporation Mini seat belt buckle
US4625371A (en) * 1984-11-22 1986-12-02 Nsk-Warner K.K. Seat belt buckle
US20030071453A1 (en) * 2001-10-16 2003-04-17 Trw Occupant Restraint Systems Gmbh & Co. Kg Tensioner-proof closure for a safety belt
US20100237112A1 (en) * 2009-03-20 2010-09-23 Bp Children's Products Hk Co., Limited Harness Fastener System for Child Carrier Device
US20130298359A1 (en) * 2012-05-09 2013-11-14 Doggyman H. A. Co., Ltd. Buckle
CN109795444A (zh) * 2017-11-16 2019-05-24 福特全球技术公司 用于座椅安全带的枢转闩锁板
CN114080170A (zh) * 2019-07-08 2022-02-22 飞机客舱改装有限公司 带锁、带锁系统和飞机安全带

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US809883A (en) * 1905-08-01 1906-01-09 Ezekiel Zeckhauser Button.
US966544A (en) * 1909-07-01 1910-08-09 Ross Heaton Mfg Co Inc Fastener.
US2098461A (en) * 1935-05-09 1937-11-09 Micallef Arthur Catch for use in detachably securing the ends of bracelets, chains, and other articles together
US2629156A (en) * 1950-07-06 1953-02-24 Kamens Irving Catch for necklaces
US3126227A (en) * 1964-03-24 bollinger
US3201840A (en) * 1963-05-20 1965-08-24 Steinthal & Co Inc M Safety belt devices
US3252196A (en) * 1964-12-04 1966-05-24 Frank R Ries Belt buckle
US3514821A (en) * 1969-02-04 1970-06-02 Ind Fjadrar Ab Buckles for safety belts
US3611513A (en) * 1969-11-12 1971-10-12 Daniel Hoober Jewelry clasp

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126227A (en) * 1964-03-24 bollinger
US809883A (en) * 1905-08-01 1906-01-09 Ezekiel Zeckhauser Button.
US966544A (en) * 1909-07-01 1910-08-09 Ross Heaton Mfg Co Inc Fastener.
US2098461A (en) * 1935-05-09 1937-11-09 Micallef Arthur Catch for use in detachably securing the ends of bracelets, chains, and other articles together
US2629156A (en) * 1950-07-06 1953-02-24 Kamens Irving Catch for necklaces
US3201840A (en) * 1963-05-20 1965-08-24 Steinthal & Co Inc M Safety belt devices
US3252196A (en) * 1964-12-04 1966-05-24 Frank R Ries Belt buckle
US3514821A (en) * 1969-02-04 1970-06-02 Ind Fjadrar Ab Buckles for safety belts
US3611513A (en) * 1969-11-12 1971-10-12 Daniel Hoober Jewelry clasp

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033015A (en) * 1973-11-15 1977-07-05 Klippan Gmbh Hamburg Lock for a safety belt
US4060879A (en) * 1975-08-19 1977-12-06 Takata Kojyo Co., Ltd Seat belt buckle
DE2619720A1 (de) * 1976-05-04 1977-11-17 Repa Feinstanzwerk Gmbh Schloss fuer sicherheitsgurte in kraftfahrzeugen
US4208771A (en) * 1978-01-19 1980-06-24 Repa Feinstanzwerk Gmbh Lock for safety belts in motor vehicles
US4374449A (en) * 1980-09-25 1983-02-22 Allied Corporation Mini seat belt buckle
US4625371A (en) * 1984-11-22 1986-12-02 Nsk-Warner K.K. Seat belt buckle
US20030071453A1 (en) * 2001-10-16 2003-04-17 Trw Occupant Restraint Systems Gmbh & Co. Kg Tensioner-proof closure for a safety belt
US20100237112A1 (en) * 2009-03-20 2010-09-23 Bp Children's Products Hk Co., Limited Harness Fastener System for Child Carrier Device
US8256073B2 (en) * 2009-03-20 2012-09-04 Bp Children's Products Hk Co., Limited Harness fastener system for child carrier device
US20130298359A1 (en) * 2012-05-09 2013-11-14 Doggyman H. A. Co., Ltd. Buckle
US8819960B2 (en) * 2012-05-09 2014-09-02 Doggyman H. A. Co., Ltd. Buckle
CN109795444A (zh) * 2017-11-16 2019-05-24 福特全球技术公司 用于座椅安全带的枢转闩锁板
CN114080170A (zh) * 2019-07-08 2022-02-22 飞机客舱改装有限公司 带锁、带锁系统和飞机安全带

Also Published As

Publication number Publication date
SE388779B (sv) 1976-10-18
GB1354048A (en) 1974-06-05
DE2109460B2 (de) 1975-10-16
CH533433A (de) 1973-02-15
NL7202000A (es) 1972-08-29
ES178215U (es) 1972-10-16
ES178215Y (es) 1973-05-01
BE779537A (fr) 1972-06-16
CA961242A (en) 1975-01-21
DE2109460A1 (de) 1972-09-07
IT948717B (it) 1973-06-11

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