| DE3318465A1 | 1984-11-22 | |||
| DE3307247A1 | 1984-09-06 | |||
| FR2391739A1 | 1978-12-22 |
| 1. | An improvement to the manually operated mechanical device for severing safetybelts installed in motor vehicles or other means of locomotion provided with safetybelts, character ized in that it comprises a guide (7) for transverse sliding (relative to the containment and sliding seat) which is suitable to sever the belt and is formed on or fitted to the, movable buckle and/or on the fixed buckle, usually arranged on the upper door pillar or other part suitable for the purpose, said guide being arranged proximate to the slot (8) for the passage of the belt, a rod (2) being arranged in said guide and being provided with at least one cutting blade (1) that can be actuated easily by extraction by means of a grip ring (3) that is arranged at one end of the same, the extraction of the rod from its own sliding seat causing the passage of the blade (1) in contact with the slot (8) and in full interference therewith, therefore completely severing the belt, which is forced to pass thereat because it is contained and retained by the supporting buckle. |
| 2. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that the pull rod (2) for severing the safetybelt is provided, at its other end, with a safety cap (4) that separates when the device is used. |
| 3. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that said sliding seat of the rod (2) and the rod itself can be provided according to any sectional geometric configuration (e. g. circular, square, et cetera). |
| 4. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that the cutting blade (1) is triangular, with one cathetus meant for fixing to said rod, with a apex whose tip is perpendicular to the sliding direction, the sides that are contiguous to the tip being furthermore sharp. |
| 5. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that the blade and/or cutting edge is provided according any geometric shape and arrangement with respect to the position of the safetybelt. |
| 6. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that both the sliding seat (7) and the rodlike element (2) for severing the safetybelt can be fitted or formed directly on the buckle and arranged equally on either of the long sides of the belt sliding slot (8). |
| 7. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that the guide (7) of the rod (2) that supports the blade has a straight sliding seat that is parallel to the surface of the buckle and is parallel to the long sides of the safetybelt sliding seat (8). |
| 8. | The manually operated mechanical device for severing safetybelts according to claim 1, characterized in that a cord is fastened to the manual grip point (3) of the cutting rod (2) in order to facilitate remote pulling action without reaching the device directly. |
| 9. | An improvement to the manually operated mechanical device for severing safetybelts installed in motor vehicles, provided according to one or more of the preceding claims and according to what is substantially described and illustrated for the specified purposes. |
| 10. | Manually operated mechanical device for severing safetybelts installed in motor vehicles or other means of locomotion provided with safetybelts, wherein the device comprises a guide (7) formed on or fitted to a movable buckle and/or on a fixed buckle of a safetybelt, the guide (7) being arranged proximate to a slot (8) for the passage of a belt, a rod (2) being arranged in said guide (7) and being provided with at least one cutting blade (1), the rod (2) including means (3) for gripping the rod (2) and extracting the rod (2) from the guide (7), the extraction of the rod (2) causing the passage of the blade (1) in contact with the slot (8) and in full inter ference therewith, thereby completely severing the belt. AM ENDED CLA) MS [received by the International Bureau on 14 October 2003 (14.10. 03); original claims 110 replaced by amended claims 18] 1. Manually operated mechanical device for severing safetybelts installed in motor vehicles or other means of locomotion provided with safetybelts, wherein the device comprises a guide (7) formed on or fitted to a movable buckle and/or on a fixed buckle of a safetybelt, the guide (7) being arranged proximate to a slot (8) for the passage of a belt, a rod (2) being arranged in said guide (7) and being provided with at least one cutting blade (1), the rod (2) including means (3) for gripping the rod (2) and extracting the rod (2) from the guide (7), the extraction of the rod (2) causing the passage of the blade (1) in contact with the slot (8) and in full interference therewith, thereby completely severing the safetybelt, wherein the rod (2) is provided, at an end thereof, with a safety cap (4) that separates when the device is used. |
| 11. | 2 The manually operated mechanical device according to claim 1, wherein the guide is formed as a sliding seat (7) and wherein both the sliding seat (7) and the rod (2) can be fitted or formed directly on the buckle and arranged equally on either of the long sides of the slot (8). |
| 12. | 3 The manually operated mechanical device according to claims 1 or 2, wherein the means (3) for gripping the rod (2) is formed as a grip ring (3). |
| 13. | 4 The manually operated mechanical device according to claims 2 or 3, wherein said sliding seat (7) of the rod (2) and the rod (2) itself can be provided according to any sectional geometric configuration (e. g. circular, square, etcetera). |
| 14. | 5 The manually operated mechanical device according to any of claims 13, wherein the cutting blade (1) is triangular, with one cathetus meant for fixing to said rod (2), with a apex whose tip is perpendicular to the sliding direction, the sides that are contiguous to the tip being furthermore sharp. |
| 15. | 6 The manually operated mechanical device according to any of claims 13, wherein the blade and/or cutting edge is provided according any geometric shape and arrangement with respect to the position of the safetybelt. |
| 16. | 7 The manually operated mechanical device according to any of the preceding claims, wherein the guide (7) of the rod (2) that supports the blade has a straight sliding seat that is parallel to the surface of the buckle and is parallel to the long sides of the seat (8). |
| 17. | 8 The manually operated mechanical device for severing safetybelts according any of claims 37, wherein a cord is fastened to the grip ring (3) of the rod (2) in order to facilitate remote pulling action without reaching the device directly. |
Said device is particularly suitable in case of an absolute emergency, such as for example a road accident in which rapid release from the safety-belts is required. The fastening of the buckle is in fact jammed in most cases and therefore the restrained individual is unable to free himself and requires the intervention of other individuals.
Background art In the current background art, other patented devices for severing motor vehicle safety-belts are known: they provide for the application of a cutting system arranged on the belts in any point, and therefore sometimes when they are needed they cannot be found easily, because they can move along said belts. This is a severe drawback in terms of the swiftness of the intervention for cleanly cutting the belt in case of absolute need.
Many road accidents, including ones that have occurred recently, have in fact pointed out these drawbacks. It is known that vehicle occupants have lost their lives because they were trapped inside because of jammed safety-belts.
Summary of the invention The aim of the invention is to: provide a device for severing safety-belts in well-known points such as proximate to the buckle and/or proximate to the upper sliding point of the belt, usually located on the door pillar or proximate to the doors; provide a device that is easy to operate and rapidly accessible for manually severing the safety-belts of motor vehicles, -- provide a mechanical device that is simple and cheap to manufacture, so as to facilitate marketing for maximum diffusion; -- provide a device that is easy to fit and install even on existing safety-belts.
Essence of the invention The aim. of the invention is achieved according to the characteristics of the main claim and/or of any other claim cited in the present patent text by providing a manually operated mechanical device for severing motor vehicle safety- belts. The device is applied to the buckle that can slide on the belt and is provided for fastening to the lower anchoring point, which is provided with an automatic release button and/or to the upper slot-shaped sliding point of said belt, which is usually located proximate to the door pillar. The application of the device does not compromise the conventional functionality of the safety-belt, leaving it free to slide.
Said device comprises an element that can slide transversely and is provided with at least one cutting blade that slides within an appropriately provided guide. Said element has, at one end, a grip ring in order to pull it and sever the belt in danger conditions. Said cutting element provided with a blade is located proximate to the sliding slot of the belt, as mentioned, on the sliding buckle for fastening said belt and/or on the supporting ring on the upper pillar proximate to the doors.
In a first possible variation, said device can be provided with a cord of suitable length that is connected to the grip point in order to pull out the extractable element; this is done to facilitate the cutting action without having to reach said element directly.
Accordingly, the advantages achieved by the present invention are numerous: the point of the device for quick belt severing is located exactly, i. e. , on the buckle and/or on the upper sliding support point, and therefore it is not necessary to search for the device along said belt; the simple construction and low manufacturing cost of the invention facilitate the maximum diffusion of this useful safety device; finally, not less importantly, it is easy to install on existing safety-belts.
Brief description of the drawings A solution according to the present invention is shown by way of preferred but non-limitative example in the accompanying drawings, wherein: Figures 1 and 2 show a front view of the device, built directly onto the sliding buckle for locking the safety-belt; Figures 3 and 4 show a perspective view of the device to be fitted to existing buckles.
As shown by the figures, the manually operated mechanical device for severing safety-belts installed in motor vehicles is fitted SUBSTITUTE SHEET (RULE 26) or formed on the buckle (5), which has a cylindrical sliding seat (7) with a wider portion (6) toward the slot (8) for the passage of the belt. A pull-out element (2) is placed within the sliding seat (7); said element is cylindrical, has suitable dimensions, and has at least one cutting blade (1), which is arranged in such a position that it does not interfere with the passage seat (8) of the safety-belt during its normal use. Such rod (2) has, at one end, a pull ring (3) (on which it is also possible to fasten a cord), while at the other end there is a containment element (4) that acts as a safety (to prevent accidental actuation of the device) and that separates easily when needed.
Said device, completed with a covering (9), can be applied to the buckles of existing safety-belts, namely to the one to be locked on the lower movable anchoring point and/or to the upper fixed one on the door pillar.
Said device can be made of metal and/or other materials that are suitable for the purpose, for example plastic materials.
The invention is of course not limited to the examples of embodiment described above, starting from which it is possible to provide other embodiments, and the details of execution can vary in any case without thereby abandoning the scope of the invention as described and claimed hereafter.