US3514821A - Buckles for safety belts - Google Patents
Buckles for safety belts Download PDFInfo
- Publication number
- US3514821A US3514821A US796331A US3514821DA US3514821A US 3514821 A US3514821 A US 3514821A US 796331 A US796331 A US 796331A US 3514821D A US3514821D A US 3514821DA US 3514821 A US3514821 A US 3514821A
- Authority
- US
- United States
- Prior art keywords
- buckle
- locking tongue
- latch member
- sleeve
- space
- 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
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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
- A44B11/2534—Safety buckles with the sliding motion of the buckle providing the opening or closing 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
- Y10T24/4566—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member
- Y10T24/45665—Receiving member includes either movable connection between interlocking components or variable configuration cavity and operator therefor including slidably connected and guided element on receiving member for shifting pivotally connected interlocking component
Definitions
- a buckle for safety seat belts comprises a locking tongue and a buckle body having a space for insertion of the locking tongue thereinto.
- the buckle body has a latch member pivoted thereto, and for retaining the locking tongue in the buckle body the latch member 1s adapted to engage in a recess in the locking tongue at one longitudinal edge thereof.
- the latch member has cam means with which a projection provided in a sleeve which is slidably mounted on the buckle body, is adapted to coact for moving the latch member out of latching position when the sleeve is slid along the buckle body.
- This invention relates to a buckle for safety belts for use in landcraft, aircraft and seacraft, comprising one member in the form of a locking tongue and another member in the form of a buckle body having a space for insertion of the locking tongue thereinto, said space being defined by two fixed plane surfaces spaced apart a distance substantially equal to the thickness of the locking tongue, and by guides extending between said plane surfaces for guiding the longitudinal edges of the locking tongue, and a latch member pivoted to the buckle body and adapted, for retaining the locking tongue to said body, to engage in a recess in the locking tongue at one longitudinal edge thereof.
- the latch member has cam means with which a projection provided in a sleeve which is slidably mounted on the buckle body, is adapted to coact, and that the cam means of the latch member is so formed that the latch member is swung out of latching position when the sleeve is slid in one direction along the buckle body.
- FIG. 1 is a front view of the buckle in one embodiment thereof, with the sleeve removed;
- FIG. 2 is a side view of the buckle with the sleeve in position thereon;
- FIG. 3 is a front view of the buckle in the other embodiment thereof, with the sleeve removed;
- FIG. 4 is a side view of the buckle, with the sleeve shown in section.
- the buckle comprises a locking tongue 1 and a body 2.
- the locking tongue 1 is adapted for insertion into the buckle body 2 for retention of the tongue to the body 2 in the position fully inserted into the body.
- the body 2 has a space 3 for the insertion of the locking tongue 1 thereinto.
- Said space 3 is defined by two fixed plane surfaces 4 and 5 spaced apart a distance substantially equal to the thickness of the locking tongue 1, and by guides 6 extending between the plane surfaces 4 and 5 for guiding the longitudinal edges of the locking tongue 1.
- the fixed plane surfaces 4 and 5 of the body 2 are preferably formed by a pair of plates which are held spaced by spacing members.
- the plates 4 and 5 are interconnected by rivets 6 or like connecting means which directly or indirectly form the guides for the longitudinal 3,514,821 Patented June 2, 1970 I CC edges of the locking tongue 1.
- the connecting means designated 6 also forms the pivot axis for a latch member 7 which is pivoted to the buckle body 2 and adapted, for retaining the locking tongue 1 to the body 2, to engage in a recess 8 of the locking tongue 1 at one longitudinal edge of the latter. Said retention is brought about only when the locking tongue 1 has reached the position in which it is fully inserted into the buckle body 2. Said fully inserted position of the locking tongue is determined by the outermost connecting means 6 with which an enlarged portion 9 of the locking tongue 1 is adapted to coact.
- the locking tongue 1 is symmetrical with respect to its center line as counted in the direction of insertion so that it has one recess 8 in each of its longitudinal edges. However the locking tongue 1 is inserted into the space of the body 2 one recess 8 wi l always coact with the latch member 7.
- the latch member 7 has cam means 10 and 11, respectively, with which a projection 13 provided in a sleeve 12 which is slidably mounted on the buckle body 2, is adapted to coact.
- the cam means 10 and 11, respectively, is so formed that the latch member 7 is swung out of latching position when the sleeve 12 is slid in one direction along the body 2.
- the cam means 10 is so formed that the latch member 7 is swung out of latching position when the sleeve 12 is slid along the body 2 towards the opening of the space 3 receiving the locking tongue 1.
- the locking tongue 1 is primarily intended for connection with one or more straps of the safety belt, while the body 2 is to be secured to the floor structure of the vehicle. When the seat occupant pull the sleeve 12 towards himself the buckle is thus released, which is important from the viewpoint of safety.
- the cam means 11 is so formed that the latch member 7 is swung out of latching position when the sleeve 12 is slid along the body 2 away from the opening of the space 3 receiving the locking tongue 1.
- the body 2 is primarily intended for connection with one or more straps of the safety belt, while the locking tongue 1 is to be secured to the floor structure of the vehicle. Also in this case the buckle is thus released when the seat occupant pulls the sleeve 12 towards himself.
- the pivotally mounted latch member 7 cooperates with a spring 14 which tends to swing the latch member into latching position. Against the action of the spring, however, the latch member 7 is adapted to be swung out of latching position when the sleeve 12 is slid along the body 2. Of course, the latch member 7 can also be moved aside against the action of the spring 14 by the locking tongue 1 when the latter is inserted into the space 3 for retaining said tongue in the body 2.
- the latch member 7 and the recess 8 of the locking tongue 1 are so conformed to each other that the latch member 7 tends to move in the latching direction when the buckle is subjected to pull. Thus there is no risk that the buckle will open when the safety belt is subjected to load.
- the latch member 7 and the recess 8 are of such a form that no large force is required for opening of the buckle although the safety belt is under load, eg when the seat occupant is suspended therein.
- the portion 15 of the latch member 7 which engages in the recess 8 of the locking tongue is curved and has its center of curvature situated in the pivot axis 6' of the latch member 7, while the part of the recess 8 in which the curved portion 15 of the latch member 7 engages, is straight.
- the straight part makes an angle of somewhat more than 45 with the direction of insertion.
- the plates 4 and 5 constituting the two plane surfaces of the space 3 receiving the locking tongue 1 are provided with registering longitudinal slots 16 for the projection which is provided in the sleeve 2 and formed by a pin 13 extending through the buckle body 2.
- the pin will thus be guided in a reliable manner, and at the same time the ends of the slots 16 or one slot 16 will define at least to a certain extent the extreme positions for the pivot movement of the latch member 7.
- a buckle for safety belts for use in landcraft, aircraft and seacraft comprising one member in the form of a locking tongue and another member in the form of a buckle body having a space for insertion of the locking tongue there-into, said space being defined by two fixed plane surfaces spaced apart a distance substantially equal to the thickness of the locking tongue, and by guides extending between said plane surfaces for guiding the longitudinal edges of the locking tongue, and a latch member pivoted to the buckle body and adapted, for retaining the locking tongue to said body, to engage in a recess in the locking tongue at one longitudinal edge thereof, wherein the latch member has cam means with which a projection provided in a sleeve which is slidably mounted on the buckle body, is adapted to coact, and the cam means of the latch member is so formed that the latch member is swung out of latching position when the sleeve is slid in one direction along the buckle body.
- a buckle as defined in claim 1 wherein the fixed plane surfaces of the buckle body are formed by a pair of spaced plates which are interconnected by rivets or like connecting means, said connecting means forming guides for the longitudinal edges of the locking tongue and for the pivot axis of the pivotally mounted latch member.
Landscapes
- Automotive Seat Belt Assembly (AREA)
Description
June 2, 1970 o. P. SAXMARK I 3,
BUCKLES FOR SAFETY BELTS Filed Feb. 4, 1969 2 Sheets-Sheet 1 PIC-3.2
F/GJ
June 2, 1970 o. P. SAXMARK 3,514,821
BUCKLES FOR SAFETY BELTS Filed Feb. 4, 1969 2 Sheets-Sheet 2 States Patent 3,514,821 BUCKLES FOR SAFETY BELTS Olov Pontus Saxmark, Skarhamm, Sweden, assignor to AB Industrifjadrar, Monsteras, Sweden Filed Feb. 4, 1969, Ser. No. 796,331
Int. Cl. A44b 11/25 U.S. Cl. 24-230 6 Claims ABSTRACT OF THE DISCLOSURE A buckle for safety seat belts comprises a locking tongue and a buckle body having a space for insertion of the locking tongue thereinto. The buckle body has a latch member pivoted thereto, and for retaining the locking tongue in the buckle body the latch member 1s adapted to engage in a recess in the locking tongue at one longitudinal edge thereof. The latch member has cam means with which a projection provided in a sleeve which is slidably mounted on the buckle body, is adapted to coact for moving the latch member out of latching position when the sleeve is slid along the buckle body.
This invention relates to a buckle for safety belts for use in landcraft, aircraft and seacraft, comprising one member in the form of a locking tongue and another member in the form of a buckle body having a space for insertion of the locking tongue thereinto, said space being defined by two fixed plane surfaces spaced apart a distance substantially equal to the thickness of the locking tongue, and by guides extending between said plane surfaces for guiding the longitudinal edges of the locking tongue, and a latch member pivoted to the buckle body and adapted, for retaining the locking tongue to said body, to engage in a recess in the locking tongue at one longitudinal edge thereof. Characteristic of the buckle accord ing to the present invention is that the latch member has cam means with which a projection provided in a sleeve which is slidably mounted on the buckle body, is adapted to coact, and that the cam means of the latch member is so formed that the latch member is swung out of latching position when the sleeve is slid in one direction along the buckle body.
For greater clarity, the buckle will be more fully described in the following with reference to the accompany drawings which schematically illustrate two embodiments, chosen by way of example, of the buckle.
In the drawings:
FIG. 1 is a front view of the buckle in one embodiment thereof, with the sleeve removed;
FIG. 2 is a side view of the buckle with the sleeve in position thereon;
FIG. 3 is a front view of the buckle in the other embodiment thereof, with the sleeve removed; and
FIG. 4 is a side view of the buckle, with the sleeve shown in section.
The buckle comprises a locking tongue 1 and a body 2. The locking tongue 1 is adapted for insertion into the buckle body 2 for retention of the tongue to the body 2 in the position fully inserted into the body.
The body 2 has a space 3 for the insertion of the locking tongue 1 thereinto. Said space 3 is defined by two fixed plane surfaces 4 and 5 spaced apart a distance substantially equal to the thickness of the locking tongue 1, and by guides 6 extending between the plane surfaces 4 and 5 for guiding the longitudinal edges of the locking tongue 1. The fixed plane surfaces 4 and 5 of the body 2 are preferably formed by a pair of plates which are held spaced by spacing members. The plates 4 and 5 are interconnected by rivets 6 or like connecting means which directly or indirectly form the guides for the longitudinal 3,514,821 Patented June 2, 1970 I CC edges of the locking tongue 1. The connecting means designated 6 also forms the pivot axis for a latch member 7 which is pivoted to the buckle body 2 and adapted, for retaining the locking tongue 1 to the body 2, to engage in a recess 8 of the locking tongue 1 at one longitudinal edge of the latter. Said retention is brought about only when the locking tongue 1 has reached the position in which it is fully inserted into the buckle body 2. Said fully inserted position of the locking tongue is determined by the outermost connecting means 6 with which an enlarged portion 9 of the locking tongue 1 is adapted to coact.
In practice the locking tongue 1 is symmetrical with respect to its center line as counted in the direction of insertion so that it has one recess 8 in each of its longitudinal edges. However the locking tongue 1 is inserted into the space of the body 2 one recess 8 wi l always coact with the latch member 7.
The latch member 7 has cam means 10 and 11, respectively, with which a projection 13 provided in a sleeve 12 which is slidably mounted on the buckle body 2, is adapted to coact. The cam means 10 and 11, respectively, is so formed that the latch member 7 is swung out of latching position when the sleeve 12 is slid in one direction along the body 2.
In the embodiment shown in FIGS. 1 and 2 the cam means 10 is so formed that the latch member 7 is swung out of latching position when the sleeve 12 is slid along the body 2 towards the opening of the space 3 receiving the locking tongue 1. In this buckle the locking tongue 1 is primarily intended for connection with one or more straps of the safety belt, while the body 2 is to be secured to the floor structure of the vehicle. When the seat occupant pull the sleeve 12 towards himself the buckle is thus released, which is important from the viewpoint of safety.
In the embodiment illustrated in FIGS. 3 and 4 the cam means 11 is so formed that the latch member 7 is swung out of latching position when the sleeve 12 is slid along the body 2 away from the opening of the space 3 receiving the locking tongue 1. In this buckle the body 2 is primarily intended for connection with one or more straps of the safety belt, while the locking tongue 1 is to be secured to the floor structure of the vehicle. Also in this case the buckle is thus released when the seat occupant pulls the sleeve 12 towards himself.
The pivotally mounted latch member 7 cooperates with a spring 14 which tends to swing the latch member into latching position. Against the action of the spring, however, the latch member 7 is adapted to be swung out of latching position when the sleeve 12 is slid along the body 2. Of course, the latch member 7 can also be moved aside against the action of the spring 14 by the locking tongue 1 when the latter is inserted into the space 3 for retaining said tongue in the body 2.
The latch member 7 and the recess 8 of the locking tongue 1 are so conformed to each other that the latch member 7 tends to move in the latching direction when the buckle is subjected to pull. Thus there is no risk that the buckle will open when the safety belt is subjected to load. On the other hand, the latch member 7 and the recess 8 are of such a form that no large force is required for opening of the buckle although the safety belt is under load, eg when the seat occupant is suspended therein.
In the embodiments illustrated the portion 15 of the latch member 7 which engages in the recess 8 of the locking tongue is curved and has its center of curvature situated in the pivot axis 6' of the latch member 7, while the part of the recess 8 in which the curved portion 15 of the latch member 7 engages, is straight. The straight part makes an angle of somewhat more than 45 with the direction of insertion.
The plates 4 and 5 constituting the two plane surfaces of the space 3 receiving the locking tongue 1 are provided with registering longitudinal slots 16 for the projection which is provided in the sleeve 2 and formed by a pin 13 extending through the buckle body 2. The pin will thus be guided in a reliable manner, and at the same time the ends of the slots 16 or one slot 16 will define at least to a certain extent the extreme positions for the pivot movement of the latch member 7.
Modifications are possible within the scope of the ap pended claims.
What I claim and desire to secure by Letters Patent is:
1. A buckle for safety belts for use in landcraft, aircraft and seacraft, comprising one member in the form of a locking tongue and another member in the form of a buckle body having a space for insertion of the locking tongue there-into, said space being defined by two fixed plane surfaces spaced apart a distance substantially equal to the thickness of the locking tongue, and by guides extending between said plane surfaces for guiding the longitudinal edges of the locking tongue, and a latch member pivoted to the buckle body and adapted, for retaining the locking tongue to said body, to engage in a recess in the locking tongue at one longitudinal edge thereof, wherein the latch member has cam means with which a projection provided in a sleeve which is slidably mounted on the buckle body, is adapted to coact, and the cam means of the latch member is so formed that the latch member is swung out of latching position when the sleeve is slid in one direction along the buckle body.
2. A buckle as defined in claim 1, wherein the cam means is so formed that the latch member is swung out of latching position when the sleeve is slid along the buckle body towards the opening of the space receiving the locking tonage.
3. A buckle as defined in claim 1, wherein the cam means is so formed that the latch member is swung out of latching position when the sleeve is slid along the buckle body away from the opening of the space receiving the locking tongue.
4. A buckle as defined in claim 1, wherein the pivotally mounted latch member cooperates with a spring which tends to swing the latch member to latching position, but the latch member is adapted to be swung out of latching position against the action of the spring when the sleeve is slid along the buckle body.
5. A buckle as defined in claim 1, wherein the fixed plane surfaces of the buckle body are formed by a pair of spaced plates which are interconnected by rivets or like connecting means, said connecting means forming guides for the longitudinal edges of the locking tongue and for the pivot axis of the pivotally mounted latch member.
6. A buckle as defined in claim 5, wherein the plates are provided with registering longitudinal slots for the projection provided in the sleeve and formed by a pin extending through the buckle body.
References Cited UNITED STATES PATENTS 2,867,024 1/1959 Sepe.
FOREIGN PATENTS 11,820 5/1910 France.
BERNARD A. GELAK, Primary Examiner
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US79633169A | 1969-02-04 | 1969-02-04 | |
FR7020064A FR2093086A5 (en) | 1969-02-04 | 1970-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3514821A true US3514821A (en) | 1970-06-02 |
Family
ID=26215775
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US796331A Expired - Lifetime US3514821A (en) | 1969-02-04 | 1969-02-04 | Buckles for safety belts |
Country Status (2)
Country | Link |
---|---|
US (1) | US3514821A (en) |
FR (1) | FR2093086A5 (en) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3653079A (en) * | 1970-07-06 | 1972-04-04 | Ferno Washington | Adjustable break-away splint-stretcher |
US3695696A (en) * | 1970-01-19 | 1972-10-03 | Allied Chem | Vehicle seat with integral seat and back portions |
US3801208A (en) * | 1970-07-06 | 1974-04-02 | Ferno Washington | Pivot locking means |
US3851360A (en) * | 1971-02-27 | 1974-12-03 | Klippan Gmbh | Buckle for safety belts |
US4047267A (en) * | 1973-12-27 | 1977-09-13 | Lindblad O L | Device in connection with locks for safety belts |
US4134186A (en) * | 1976-08-25 | 1979-01-16 | Stakupress Gesellschaft Fur Stahl-Und Kunststoffverarbeitung Mbh & Co., Kg | Safety belt fastening |
US4313246A (en) * | 1979-07-23 | 1982-02-02 | Repa Feinstanzwerk Gmbh | Belt buckle or lock for a safety belt |
US4563797A (en) * | 1983-09-20 | 1986-01-14 | Nsk-Warner K. K. | Safety belt buckle |
US4625371A (en) * | 1984-11-22 | 1986-12-02 | Nsk-Warner K.K. | Seat belt buckle |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2410974A2 (en) * | 1977-12-09 | 1979-07-06 | Ferodo Sa | Safety belt lock with quick release - has interacting press-button and swivel bolts |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR11820E (en) * | 1910-05-11 | Nicolas Alexis Didierjean | Instant button for boots and gaiters | |
US2867024A (en) * | 1953-03-03 | 1959-01-06 | John A Gaylord | Harness release |
-
1969
- 1969-02-04 US US796331A patent/US3514821A/en not_active Expired - Lifetime
-
1970
- 1970-06-01 FR FR7020064A patent/FR2093086A5/fr not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR11820E (en) * | 1910-05-11 | Nicolas Alexis Didierjean | Instant button for boots and gaiters | |
US2867024A (en) * | 1953-03-03 | 1959-01-06 | John A Gaylord | Harness release |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3695696A (en) * | 1970-01-19 | 1972-10-03 | Allied Chem | Vehicle seat with integral seat and back portions |
US3653079A (en) * | 1970-07-06 | 1972-04-04 | Ferno Washington | Adjustable break-away splint-stretcher |
US3801208A (en) * | 1970-07-06 | 1974-04-02 | Ferno Washington | Pivot locking means |
US3851360A (en) * | 1971-02-27 | 1974-12-03 | Klippan Gmbh | Buckle for safety belts |
US4047267A (en) * | 1973-12-27 | 1977-09-13 | Lindblad O L | Device in connection with locks for safety belts |
US4134186A (en) * | 1976-08-25 | 1979-01-16 | Stakupress Gesellschaft Fur Stahl-Und Kunststoffverarbeitung Mbh & Co., Kg | Safety belt fastening |
US4313246A (en) * | 1979-07-23 | 1982-02-02 | Repa Feinstanzwerk Gmbh | Belt buckle or lock for a safety belt |
US4563797A (en) * | 1983-09-20 | 1986-01-14 | Nsk-Warner K. K. | Safety belt buckle |
US4625371A (en) * | 1984-11-22 | 1986-12-02 | Nsk-Warner K.K. | Seat belt buckle |
Also Published As
Publication number | Publication date |
---|---|
FR2093086A5 (en) | 1972-01-28 |
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