GB2417754A - Padlock impact protection device - Google Patents
Padlock impact protection device Download PDFInfo
- Publication number
- GB2417754A GB2417754A GB0419550A GB0419550A GB2417754A GB 2417754 A GB2417754 A GB 2417754A GB 0419550 A GB0419550 A GB 0419550A GB 0419550 A GB0419550 A GB 0419550A GB 2417754 A GB2417754 A GB 2417754A
- Authority
- GB
- United Kingdom
- Prior art keywords
- padlock
- produced
- impact
- hasp
- metallic material
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B67/00—Padlocks; Details thereof
- E05B67/38—Auxiliary or protective devices
Landscapes
- Vending Machines For Individual Products (AREA)
Abstract
A device to protect padlocks from damage through which the hasp of the padlock is passed. Protection is achieved by deflection or absorption of impact energy from any impact to the top face of the lock. One embodiment of the device consists of a concave circular plate larger in diameter than the width of the padlock, and having a slot or holes through which the hasp of the padlock is placed before being attached to the chain or item to be secured. The device may comprise corrugations or other shape incorporated to dissipate impact energy. The device may be formed from metal, for example from sheet metal or spring steel. Alternatively, the device may be formed from plastic rubber or such like.
Description
- ] 241 7754 PADLOCK IMPACT PROTECTION DEVICE.
The most popular design of padlock is that in which the hasp is rotated through 180 degrees and slid into the body to lock. This invention relates to this type of padlock.
Padlocks of this type are very susceptible to breakage by impact to the top face whilst the hasp is restrained. A heavy blow from a hammer can easily force the body of the lock from the hasp. This feature is the weakest point of the design, and is often exploited by criminals.
It is the object of the invention to either eliminate, or substantially reduce this vulnerability.
One embodiment of the invention consists of a concave / convex plate with a slot or holes or any combination of slots and holes, through which the hasp of the lock is passed, before the lock is fitted to the chain or item to me secured, and the lock closed shut. The plate is fitted with the convex face uppermost, and the concave face against the lock body.
The invention prevents direct impact on the lock body by presenting a curved surface to any impact, and directing the force away from the lock body.
The plate can also tilt under impact, further deflecting any impact.
The concave plate may be circular, with a diameter greater than the maximum width of the lock, or may be of some other shape to suit individual circumstances.
Corrugations may be formed in the plate to act as shock absorbers and further dissipate energy from any sudden impact. Rubber or polymeric materials may be incorporated to further increase the shock absorption effect. The invention may be constructed from either metallic or non metallic materials or a combination of both
DRAWINGS
FIG I Shows one embodiment of the device with slot FIG 2 Shows one embodiment of the device with holes FIG 3 Shows hasp turned 180 degrees with device in dropped position to fit chain or other security fixture FIG 4 Shows padlock with device in place, hasp turned back through 180 degrees ready for locking.
FIG 5 Shows device in place, padlock locked.
Claims (15)
1. A device though which the hasp of a padlock is passed which is designed to deflect or otherwise dissipate energy from any impact blow to the top face of the padlock.
2. A device according to claim I in which the plate which is has a convex top face and concave lower face.
3. A device according to claim I in which the device when viewed from above is circular
4. A device according to claim 1 in which when viewed from above is an alternative shape to suit different security situations.
5. A device according to claim I in which the plate is made by the process of powder metallurgy.
6. A device according to claim 1 which is made by forming of sheet metal
7. A device according to claim 1 which is produced by cold forming of metallic material
8. A device according to claim 1 which is produced by hot or cold forging of metallic material
9. A device according to claim 1 which is produced by any manner of casting
10. A device according to claim 1 which has corrugations or some other shape incorporated in order to act as shock absorbers to further dissipate impact energy.
11. A device according to claim 1 which is produced from spring steel or other metallic material which will allow the deformation on impact and then spring back to original shape.
12. A device according to claim 1 which is produced from plastic rubber or polymer based material which will allow deformation and spring back to original shape.
13. A device according to claim 1 which is heat treated.
14. A device according to claim I in which the material used is of insufficient thickness for bolt croppers or similar tools to be effective in cutting the device.
15. A device according to claim I which is made from a combination of materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0419550A GB2417754A (en) | 2004-09-03 | 2004-09-03 | Padlock impact protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0419550A GB2417754A (en) | 2004-09-03 | 2004-09-03 | Padlock impact protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0419550D0 GB0419550D0 (en) | 2004-10-06 |
| GB2417754A true GB2417754A (en) | 2006-03-08 |
Family
ID=33155958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0419550A Withdrawn GB2417754A (en) | 2004-09-03 | 2004-09-03 | Padlock impact protection device |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2417754A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185519A (en) * | 1986-01-21 | 1987-07-22 | Robert Lee | Padlock shield |
| FR2615236A1 (en) * | 1987-05-13 | 1988-11-18 | Falson Salvator | Tamperproof protection device for padlocks used for theft prevention |
| US5156029A (en) * | 1990-08-17 | 1992-10-20 | Heald Charles J | Lock and protective cover assembly |
| US5303568A (en) * | 1992-12-07 | 1994-04-19 | Nate Wightman | Padlock protector |
| US6374646B1 (en) * | 2000-12-08 | 2002-04-23 | Donald L. Brake | Padlock security cap |
-
2004
- 2004-09-03 GB GB0419550A patent/GB2417754A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2185519A (en) * | 1986-01-21 | 1987-07-22 | Robert Lee | Padlock shield |
| FR2615236A1 (en) * | 1987-05-13 | 1988-11-18 | Falson Salvator | Tamperproof protection device for padlocks used for theft prevention |
| US5156029A (en) * | 1990-08-17 | 1992-10-20 | Heald Charles J | Lock and protective cover assembly |
| US5303568A (en) * | 1992-12-07 | 1994-04-19 | Nate Wightman | Padlock protector |
| US6374646B1 (en) * | 2000-12-08 | 2002-04-23 | Donald L. Brake | Padlock security cap |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0419550D0 (en) | 2004-10-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |