US3597811A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seat belts fastener
Assignee: Wingard Ltd
•
Filing: 1970-03-06
•
Granted: 1971-08-10
•
Expires: 1990-03-06
Abstract
Abstract In a two-part separable buckle for a safety seat belt for vehicles, one part comprises a flat shank having a step on at least one side edge and adapted to enter between parallel walls of a frame member in the other part, and a latch member mounted to rock on the frame carries a pawl working in aligned sectorshaped openings in the walls and adapted to engage with the step in the shank of the first part when that is pressed home into the frame.
Inventors
- 👤 Douglas J Cunningham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:33
CPC Classifications
A; A44; A44B; A44B11/00; A44B11/25; A44B11/2503; A44B11/2507; A44B11/2515; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45675; Y10T24/45696; Y10T24/45712
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
156 words
A two-part buckle for a safety seat belt comprising a first part to which lap and diagonal straps of the seat belt are connected and a second part with which the first part has a snapin releasable engagement, wherein said first part comprises a flat shank with a tapered nose and a step in at least one side edge, and the second part comprises a frame having parallel sidewalls between which said shank on the first part is adaPted to enter, aligned sector-shaped openings in said walls offset from the centerline of the frame, a spring-pressed latch member, a flat pawl which is mounted in said latch member and is engaged in said sector-shaped openings to form a fulcrum about which said latch member rocks, said pawl being adapted to engage between the apices of the sector-shaped openings and the step on the shank of the first part when said shank is inserted into the frame.
Claim 2
Dependent Claim
156 words
A two-part buckle for a safety seat belt comprising a first part to which lap and diagonal straps of the seat belt are connected and a second part with which the first part has a snapin releasable engagement, wherein said first part comprises a flat shank with a tapered nose and a step in at least one side edge, and the second part comprises a frame having parallel sidewalls between which said shank on the first part is adaPted to enter, aligned sector-shaped openings in said walls offset from the centerline of the frame, a spring-pressed latch member, a flat pawl which is mounted in said latch member and is engaged in said sector-shaped openings to form a fulcrum about which said latch member rocks, said pawl being adapted to engage between the apices of the sector-shaped openings and the step on the shank of the first part when said shank is inserted into the frame.
Claim 3
Dependent Claim
70 words
A two-part buckle as in claim 1, wherein the apices of said sector-shaped openings in the walls of the frame of the second part are directed towards the upper end of the frame which is open to receive the shank on the first part, and the latch member is loaded by a spring which urges the pawl towards the radial edges of the openings nearest the centerline of the frame.
Claim 4
Dependent Claim
70 words
A two-part buckle as in claim 2, wherein the radial edges of the sector-shaped openings in the walls of the frame nearest the centerline of the frame are inclined at an acute angle to said centerline in a direction such that in the engaged condition of the buckle any force tending to separate the two parts of the buckle has a component retaining the latch member in the engaged position.
Claim 5
Dependent Claim
50 words
A two-part buckle as in claim 1, wherein said parallel sidewalls of the frame are connected by an end wall by which the side of the shank of the first part of the buckle remote from the latch member is backed when the two parts of the buckle are engaged.
Claim 6
Dependent Claim
34 words
A two-part buckle as in claim 1, wherein said latch member is a sheet metal pressing having spaced parallel limbs which embrace said frame and in which the ends of the pawl are located.
Claim 7
Dependent Claim
38 words
A two-part buckle as in claim 1, wherein said frame of the second part of the buckle is connected at its lower end to a rigid stalk adapted to be secured to a load-carrying part of a vehicle.
Claim 8
Dependent Claim
37 words
A two-part buckle as in claim 1, wherein said frame of the second part of the buckle is enclosed in a moulded plastic housing having an opening in one side through which said latch member is accessible.
References Cited (Backward Citations)
FR409842A
Cited
US3131446A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |