US3551961A - Devices for locking a strap cooperating with a retracting mechanism - Google Patents

Devices for locking a strap cooperating with a retracting mechanism Download PDF

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Publication number
US3551961A
US3551961A US767224A US3551961DA US3551961A US 3551961 A US3551961 A US 3551961A US 767224 A US767224 A US 767224A US 3551961D A US3551961D A US 3551961DA US 3551961 A US3551961 A US 3551961A
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United States
Prior art keywords
strap
locking
plate
rod
retracting mechanism
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Expired - Lifetime
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US767224A
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Harry Mauritz Nygren
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Industrifjadrar AB
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Industrifjadrar AB
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/347—Belt retractors, e.g. reels with means for permanently locking the retractor during the wearing of the belt
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/347—Belt retractors, e.g. reels with means for permanently locking the retractor during the wearing of the belt
    • B60R2022/3475—Belt retractors, e.g. reels with means for permanently locking the retractor during the wearing of the belt having means for acting directly upon the belt, e.g. by clamping or friction
    • 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
    • Y10T24/4079—Sliding part of wedge
    • Y10T24/4084—Looped strap

Definitions

  • a device for locking a strap which is part of a safety seat belt and cooperates with a strap retracting mechanism is constituted by a buckle of the type comprising a rod which serves as a latching means and is shiftable in relation to a recess provided in a plate of the buckle.
  • the strap shall pass about the rod and extend from the same side into and out of the recess, the strap being locked between one edge of the recess and the rod when it is stretched substantially in the direction of the plate.
  • the plate is mounted for pivotal movement in a frame between the locking position in which it thus is substantially parallel with the direction of the strap, and a released position in which it is substantially at right angles to the direction of the strap.
  • This invention relates to a device for locking a strap cooperating with a retracting mechanism, the strap being prefer-ably incorporated with a safety seat belt or like harness.
  • Said device is substantially characterised in that it is constituted by a buckle of the type comprising a rod or like member which serves as a latching means and is shiftable for latching purposes in relation to a recess provided in a plate of said buckle, and the strap is passed about the rod serving as latching means and extends in such a way from the same side into and out of the recess that the strap is locked between one edge of the recess and the rod when the strap is stretched substantially in the direction of the plate, and that the locking plate is mounted for pivotal movement in a frame between the locking position in which it is substantially parallel with the direction of the strap, and 2. released position in which it is substantially at right angles to the direction of the strap.
  • FIG. 1 is a vertical section of the buckle in the locking position
  • FIG. 2 is a vertical section of the buckle in the released position
  • FIG. 3 is a side view on a smaller scale of the entire device.
  • the buckle comprises a rod 1 which serves as a latching means and is shiftable for latching purposes in relation to a recess 2 provided in a plate 3 of the buckle.
  • the strap 4 is passed about the rod 1 and extends in such a way from the same side into and out of the recess 2 as to be locked between the edge 5 of the recess 2 and the rod 1 when the strap 4 is stretched substantially in the direction of the plate 3, as shown in FIG. 1.
  • the plate 3 takes a position substantially at right angles to the direction of the strap 4, the latter can be freely pulled out, which FIG. 2 is meant to show. Irrespective of whether the plate 3 occupies the FIG. 1 position or the FIG. 2 position the strap retracting mechanism 6 can retract a length of the strap.
  • the locking and the release 3,551,961 Patented Jan. 5, 1971 thus only apply to the free strap portion 4' remote from the locking device.
  • the locking plate 3 is mounted for pivotal movement in a frame 7 between the locking position shown in FIG. 1 and the released position shown in FIG. 2.
  • the plate 3 at its lower edge has projecting portions 8 which cooperate with recesses 9 in the opposite sides of the frame 7, the plate 3 being located between said sides.
  • One of said projecting portions 8 can preferably be formed as or provided with a lever or like operating means for pivoting the plate 3.
  • the locking plate 3 can be operated either manually or by a remote control means. If the device is employed in connection with safety seat belts for automotive vehicles, remote control can be realized with the aid of a manual lever or a pedal placed where it is easily accessible in the vehicle. Remote control can also be effected from the buckle of the safety seat belt so that the strap 4 is locked when the constituent parts of the buckle occupy their locking positions.
  • the strap retracting mechanism 6 includes a spring or like element which by the intermediary of the strap 4 tends to pivot the locking plate 3 to locking position.
  • the locking plate 3 is therefore immediately swung back to locking position when for instance the remote control means is released.
  • the strap retracting mechanism 6 is a roller mounted in the frame 7 and actualted by a torsion leaf spring.
  • the mechanism can also consist of a spiral spring which pulls the strap 4 through the locking device.
  • the spiral spring arrangement can be made very narrow and therefore readily be built into a door pillar, a door bottom member etc. in a vehicle.
  • the frame 7 In the clawing the frame 7 is placed at the floor of a vehicle, the strap portion 4 extending in a straight upward direction.
  • the frame 7 could, however, also be located adjacent the roof of the vehicle, the belt portion 4' extending downwardly in that case.
  • the pin 10 ensures that the strap portion 4' is always correctly oriented with respect to the locking device.
  • a device for locking a strap cooperating with a retracting mechanism comprising:
  • a locking plate having a recess therein and pivotally attached to said frame for pivoting of said plate through an angle of approximately between two end positions with one end position being a locking position and the other end position being a released position for said strap,
  • said strap retracting mechanism and said locking plate mounted for movement of said plate from released position to locking position through the intermediary of said portion of said strap conected between said locking plate and said strap retracting mechanism.
  • the locking device of claim 1 further characterized by said rod latching means and said plate relatively positioned to catch said portion of said strap therebetween Which connects to said strap retracting mechanism.
  • the locking device of claim 1 further characterized by lever means to permit pivotal movement of said plate.
  • the locking device of claim 1 further characterized by control means to move said plate.
  • the locking device of claim 4 further characterized by said strap retracting mechanism moving said locking plate from released position to locking position when not influenced by said control means.
  • the locking device of claim 1 further characterized 4 by a spring means in said strap retracting mechanism for accomplishing the pivoting of said plate to locking position.

Abstract

A DEVICE FOR LOCKING A STRAP WHICH IS PART OF A SAFETY SEAT BELT AND COOPERATES WITH A STRAP RETRACTING MECHANISM, IS CONSTITUTED BY A BUCKLE OF THE TYPE COMPRISING A ROD WHICH SERVES AS A LATCHING MEANS AND IS SHIFTABLE IN RELATION TO A RECESS PROVIDED IN A PLATE OF THE BUCKLE. THE STRAP SHALL PASS ABOUT THE ROD AND EXTEND FROM THE SAME SIDE INTO AND OUT OF THE RECESS, THE STRAP BEING LOCKED BETWEEN ONE EDGE OF THE RECESS AND THE ROD WHEN IT IS STRETCHED SUBSTANTIALLY IN THE DIRECTION OF THE PLATE. THE PLATE IS MOUNTED FOR PIVOTAL MOVEMENT IN A FRAME BETWEEN THE LOCKING POSITION IN WHICH IT THUS IS SUBSTANTIALLY PARALLEL WITH THE DIRECTION FO THE STRAP, AND A RELEASED POSITION IN WHICH IT IS SUBSTANTIALLY AT RIGHT ANGLES TO THE DIRECTION OF THE STRAP.

Description

1 H. M. NYGREN DEVICES FOR LOCKING A STRAP COOPERATING WITH A RETRACTING MECHANISM Filed Oct. 14. 1968 United States Patent DEVICES FOR LOCKING A STRAP COOPERATING WITH A RETRACTING MECHANISM Harry Mauritz Nygren, Monsteras, Sweden, assignor to AB Industrifjadrar, Monsteras, Sweden Filed Oct. 14, 1968, Ser. No. 767,224 Claims priority, application Sweden, Oct. 18, 1967, 14,246/ 67 Int. Cl. A44b 11/10; A62b 35/00 U.S. Cl. 24-196 7 Claims ABSTRACT OF THE DISCLOSURE A device for locking a strap which is part of a safety seat belt and cooperates with a strap retracting mechanism, is constituted by a buckle of the type comprising a rod which serves as a latching means and is shiftable in relation to a recess provided in a plate of the buckle. The strap shall pass about the rod and extend from the same side into and out of the recess, the strap being locked between one edge of the recess and the rod when it is stretched substantially in the direction of the plate. The plate is mounted for pivotal movement in a frame between the locking position in which it thus is substantially parallel with the direction of the strap, and a released position in which it is substantially at right angles to the direction of the strap.
This invention relates to a device for locking a strap cooperating with a retracting mechanism, the strap being prefer-ably incorporated with a safety seat belt or like harness. Said device is substantially characterised in that it is constituted by a buckle of the type comprising a rod or like member which serves as a latching means and is shiftable for latching purposes in relation to a recess provided in a plate of said buckle, and the strap is passed about the rod serving as latching means and extends in such a way from the same side into and out of the recess that the strap is locked between one edge of the recess and the rod when the strap is stretched substantially in the direction of the plate, and that the locking plate is mounted for pivotal movement in a frame between the locking position in which it is substantially parallel with the direction of the strap, and 2. released position in which it is substantially at right angles to the direction of the strap.
The invention will now be more fully described with reference to the accompanying drawing which shows an embodiment, chosen by way of example, of the device. In the drawing:
FIG. 1 is a vertical section of the buckle in the locking position;
FIG. 2 is a vertical section of the buckle in the released position;
FIG. 3 is a side view on a smaller scale of the entire device.
The buckle comprises a rod 1 which serves as a latching means and is shiftable for latching purposes in relation to a recess 2 provided in a plate 3 of the buckle. The strap 4 is passed about the rod 1 and extends in such a way from the same side into and out of the recess 2 as to be locked between the edge 5 of the recess 2 and the rod 1 when the strap 4 is stretched substantially in the direction of the plate 3, as shown in FIG. 1. On the other hand, if the plate 3 takes a position substantially at right angles to the direction of the strap 4, the latter can be freely pulled out, which FIG. 2 is meant to show. Irrespective of whether the plate 3 occupies the FIG. 1 position or the FIG. 2 position the strap retracting mechanism 6 can retract a length of the strap. The locking and the release 3,551,961 Patented Jan. 5, 1971 thus only apply to the free strap portion 4' remote from the locking device.
The locking plate 3 is mounted for pivotal movement in a frame 7 between the locking position shown in FIG. 1 and the released position shown in FIG. 2. To this end, the plate 3 at its lower edge has projecting portions 8 which cooperate with recesses 9 in the opposite sides of the frame 7, the plate 3 being located between said sides. One of said projecting portions 8 can preferably be formed as or provided with a lever or like operating means for pivoting the plate 3.
The locking plate 3 can be operated either manually or by a remote control means. If the device is employed in connection with safety seat belts for automotive vehicles, remote control can be realized with the aid of a manual lever or a pedal placed where it is easily accessible in the vehicle. Remote control can also be effected from the buckle of the safety seat belt so that the strap 4 is locked when the constituent parts of the buckle occupy their locking positions.
The strap retracting mechanism 6 includes a spring or like element which by the intermediary of the strap 4 tends to pivot the locking plate 3 to locking position. The locking plate 3 is therefore immediately swung back to locking position when for instance the remote control means is released.
In the embodiment illustrated the strap retracting mechanism 6 is a roller mounted in the frame 7 and actualted by a torsion leaf spring. However, the mechanism can also consist of a spiral spring which pulls the strap 4 through the locking device. The spiral spring arrangement can be made very narrow and therefore readily be built into a door pillar, a door bottom member etc. in a vehicle.
In the clawing the frame 7 is placed at the floor of a vehicle, the strap portion 4 extending in a straight upward direction. The frame 7 could, however, also be located adjacent the roof of the vehicle, the belt portion 4' extending downwardly in that case. The pin 10 ensures that the strap portion 4' is always correctly oriented with respect to the locking device.
While the invention has been described and shown in but one embodiment those skilled in the art will readily realize that modifications can be resorted to within the scope of the appended claims.
What I claim and desire to secure by Letters Patent is:
1. A device for locking a strap cooperating with a retracting mechanism comprising:
a strap incorporated with a safety seat belt,
a fixedly mounted frame,
a locking plate having a recess therein and pivotally attached to said frame for pivoting of said plate through an angle of approximately between two end positions with one end position being a locking position and the other end position being a released position for said strap,
a rod latching means mounted for movement in relation to said recess in said plate,
said strap passing through said recess, about said rod latching means, and back through said recess with portions of said strap extending therefrom,
and a strap retracting mechanism connected to said locking plate and said rod latching means through the intermediary of a said portion of said strap,
said portions of said strap substantialy parallel to the direction of movement of said rod latching means in relation to said plate in said locking position, and said portions of said strap substanti-aly at right angles to the direction of movement of said rod latching means in relation to said plate in said released position,
3 said strap retracting mechanism and said locking plate mounted for movement of said plate from released position to locking position through the intermediary of said portion of said strap conected between said locking plate and said strap retracting mechanism.
2. The locking device of claim 1, further characterized by said rod latching means and said plate relatively positioned to catch said portion of said strap therebetween Which connects to said strap retracting mechanism.
3. The locking device of claim 1, further characterized by lever means to permit pivotal movement of said plate.
4. The locking device of claim 1, further characterized by control means to move said plate.
5. The locking device of claim 4, further characterized by said strap retracting mechanism moving said locking plate from released position to locking position when not influenced by said control means.
6. The locking device of claim 1, further characterized 4 by a spring means in said strap retracting mechanism for accomplishing the pivoting of said plate to locking position.
7. The locking device of claim 6, in Which said strap retracting mechanism is a roller mounted in said frame.
References Cited UNITED STATES PATENTS 1,234,818 7/1917 Sturrock 24196 3,227,489 1/1966 Stubblefield 297 3ss 3,375,994 4/1968 Wohlert et a1. 242-1072 DONALD A. GRIFFIN, Primary Examiner US. Cl. X.R.
US767224A 1967-10-18 1968-10-14 Devices for locking a strap cooperating with a retracting mechanism Expired - Lifetime US3551961A (en)

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SE1424667 1967-10-18

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DE (1) DE1804200A1 (en)
ES (1) ES359243A1 (en)
FR (1) FR1603218A (en)
GB (1) GB1233956A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719972A (en) * 1970-09-28 1973-03-13 W Klink Safety belt device for occupants of motor vehicles
US3941419A (en) * 1974-11-21 1976-03-02 General Motors Corporation Buckle component for a vehicle occupant restraint belt system
FR2297061A1 (en) * 1975-01-10 1976-08-06 Autoliv Ab DEVIATOR DEVICE FOR SEAT BELTS
US4291918A (en) * 1979-09-19 1981-09-29 General Motors Corporation Buckle assembly for continuous loop occupant restraint belt system
US4300731A (en) * 1980-05-22 1981-11-17 General Motors Corporation Belt roll-up retractor
US4359237A (en) * 1980-04-07 1982-11-16 Irvin Industries Inc. Static belt loop snubber system
US4979764A (en) * 1989-11-27 1990-12-25 Occupant Safety Systems Inc. Free-falling tip with full locking
US5316339A (en) * 1991-05-31 1994-05-31 Pacific Scientific Company Safety belt gripping mechanism
US5417455A (en) * 1989-11-27 1995-05-23 Takata Inc. Free-falling tip with full locking

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3719972A (en) * 1970-09-28 1973-03-13 W Klink Safety belt device for occupants of motor vehicles
US3941419A (en) * 1974-11-21 1976-03-02 General Motors Corporation Buckle component for a vehicle occupant restraint belt system
FR2297061A1 (en) * 1975-01-10 1976-08-06 Autoliv Ab DEVIATOR DEVICE FOR SEAT BELTS
US4009510A (en) * 1975-01-10 1977-03-01 Lindblad O L Deflection device for safety belts
US4291918A (en) * 1979-09-19 1981-09-29 General Motors Corporation Buckle assembly for continuous loop occupant restraint belt system
US4359237A (en) * 1980-04-07 1982-11-16 Irvin Industries Inc. Static belt loop snubber system
US4300731A (en) * 1980-05-22 1981-11-17 General Motors Corporation Belt roll-up retractor
US4979764A (en) * 1989-11-27 1990-12-25 Occupant Safety Systems Inc. Free-falling tip with full locking
US5417455A (en) * 1989-11-27 1995-05-23 Takata Inc. Free-falling tip with full locking
US5316339A (en) * 1991-05-31 1994-05-31 Pacific Scientific Company Safety belt gripping mechanism

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Publication number Publication date
FR1603218A (en) 1971-03-22
GB1233956A (en) 1971-06-03
ES359243A1 (en) 1970-06-01
DE1804200A1 (en) 1969-08-14

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