GB2454728A - Nail with oval shank - Google Patents
Nail with oval shank Download PDFInfo
- Publication number
- GB2454728A GB2454728A GB0722576A GB0722576A GB2454728A GB 2454728 A GB2454728 A GB 2454728A GB 0722576 A GB0722576 A GB 0722576A GB 0722576 A GB0722576 A GB 0722576A GB 2454728 A GB2454728 A GB 2454728A
- Authority
- GB
- United Kingdom
- Prior art keywords
- nail
- power driven
- shank
- oval
- collated
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims description 18
- 239000000835 fiber Substances 0.000 claims description 5
- 230000001747 exhibiting effect Effects 0.000 claims description 4
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000009408 flooring Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 230000003763 resistance to breakage Effects 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000011121 hardwood Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011122 softwood Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B15/00—Nails; Staples
- F16B15/06—Nails; Staples with barbs, e.g. for metal parts; Drive screws
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B15/00—Nails; Staples
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
A nail has a shank 1 with an oval cross section along its complete length. The shank 1 includes a first oval umbrella type helical thread portion 12 that starts at a tip of the nail, an unthreaded portion 10 and a second portion 15 of umbrella type helical thread which ends under a flat 'D' shaped head 2. The head 2 has a six lobular drive recess 3.
Description
Removable Power Driven Collated Nail The invention relates to a collated nail of a kind intended primarily for use with soft wood, low-density fibre board, medium-density fibre board, high-density fibre board and occasionally with hard wood, among other similar modem building materials, which is hereinafter referred to as a removable power driven collated nail.
BACKGROUND OF THE INVENTION
Existing conventional collated nails driven in with a power impact gun generally consist of a flat D' shaped head to accommodate an impact device, a round shank with annular rings defined in the shank starting just behind the tip of the nail, along with a collation device that holds the nails together in a strip allowing the strip to be placed in a power impact gun, where the nail is fired into differing material by several methods such as gas, compressed air or an electric motor, among others.
Consideration is given to the design of these power driven collated nails such as the pull-out resistance of the nail when fixed into material and the efficiency of its powered insertion into that material, among others; consideration is not given to removing the nail once driven in material.
DESCRIPTION OF THE INVENTION
To overcome this problem the present invention proposes a removable power driven collated nail characterised in that it has a shank with an oval cross sectional area along its complete length, an oval umbrella type helical thread that starts just behind the tip of the nail and ends where an unthreaded oval portion of shank starts which ends where another portion of umbrella type helical thread starts and ends under a flat D' type head that has a six lobular drive recess allowing the nail to be driven out once driven into differing materials.
Moreover, the oval cross sectional area of the shank resists counter-clockwise turning moments as the material the removable power collated nail is fixed into flexes in use.
The removable power driven collated nail can be made from carbon steel, stainless steel, copper and other similar materials with either flat or raised D' type heads.
The removable power driven collated nail can be surface coated or galvanised for exterior applications.
FIGURE 1 shows the side elevation of the removable power driven collated nail.
FIGURE 2 shows the cross sectional area of the removable power driven collated nail's oval shank and under head.
FIGURE 3 shows the top view of the removable power driven collated nail's head with a six lobular recess.
FIGURE 4 shows the angles of the removable power driven collated nail's umbrella thread-form.
The nail of the invention as shown in Figure 1 is characterised in that it has a shank (1) with an oval cross sectional area along its complete length, an oval umbrella type helical thread (12) that starts behind the tip (11) and ends where an unthreaded oval portion of shank (10) starts that ends where another portion of umbrella type helical thread (15) starts and ends under a flat D' type head (2) that has a six lobular drive recess (3) allowing the removable power driven collated nail to be driven out once driven into differing materials.
The nail of the invention, as shown in Figure 1, in this example, has a flat D' type head (2) where the depth (9) enables a suitable size of recess (3) to be provided in the head without reducing the quantity of metal between the root of the recess and the radius (14) between the head (2) and shank (I) beyond a satisfactory amount for maintaining the strength of the screw between the head (2) and the shank (1), intended to eliminate cam-out' where the driver bit jumps out of the recess (3) and thereby reams out the drive recess.
The nail of the invention, as shown in Figure 1 has an oval helical umbrella type thread (12), on a shank that has a oval cross sectional area (1) that runs its complete length, where the leading angle Figure 4 (8) is 75 degrees, plus or minus 5 degrees, exhibiting low insertion resistance.
The nail of the invention, as shown in Figure I has an oval helical umbrella type thread (12), on a shank that has a oval cross sectional area (I) that runs its complete length, where the angle Figure 4 (7) is 30 degrees, plus or minus 10 degrees, exhibiting much higher pull out resistance than annular rings found on conventional nails.
The nail of the invention, as shown in Figure 3 has a shank (I) with an oval cross sectional area that runs its complete length, where the ratio between diameters (4) and (5) is no less than 10:8 exhibiting high resistance to counter-clockwise movement of the power driven collated nail (unseating) as the material it is driven into flexes in use.
As shown in Fig 1, the nail of the invention has a sharp tip (ll)with an angle (13)of no more than 45 degrees, plus or minus 5%, which penetrates immediately even into the hardest of material.
The nail of the invention, as shown in Figure 1, has a plain shank (10) no less than 20% of the full length of the power driven collated nail, acting as a dowel, allowing the jointed material to clamp together.
As shown in Fig 1, the nail of the invention has a oval umbrella type helical thread (15) no more than 10% of the length of the power driven collated nail, plus or minus 5%, securing the upper jointed material, eliminating protrusion of the power driven collated nail in the event of material shrinkage over time.
The nail of the invention has a balance between core and surface hardness to exhibit both ductility (fifteen degrees of bend before snapping) and strength, intended to allow movement in application, resistance to breakage and resistance to recess damage, ideal for the flooring boards made of either conventional timber or the new high density fibre boards where ductility is a necessity due to board movement under use.
Claims (8)
1. The removable power driven collated nail is charactensed in that it has a shank with an oval cross sectional area along its complete length, an oval umbrella type helical thread that starts just behind the tip of the nail and ends where an unthreaded oval portion of shank starts which ends where another portion of umbrella type helical thread starts and ends under a flat D' type head that has a six lobular drive recess allowing the power driven collated nail to be driven out once driven into differing materials.
2. A removable power driven collated nail as claimed in claim I which in this example has a flat D' type head where the depth enables a suitable size of recess to be provided in the head without reducing the quantity of metal between the root of the recess and the radius between the head and shank beyond a satisfactory amount for maintaining the strength of the power driven collated nail between the head and the shank, intended to eliminate cam-out' where the driver bit jumps out of the recess and thereby reams out the drive recess.
3. A removable power driven collated nail as claimed in any preceding claim has an oval helical umbrella type thread on a shank that has an oval cross sectional area that runs its complete length where the leading angle of that thread is of sufficient gradient to exhibit low insertion resistance.
4. A removable power driven collated nail as claimed in any preceding claim has an oval helical umbrella type thread on a shank that has a oval cross sectional area that runs its complete length, where the trailing angle of that thread is of sufficient gradient to exhibit a good degree of pull out resistance.
5. A removable power driven collated nail as claimed in any preceding claim has a shank that has an oval cross sectional area that runs its complete length where the ratio between greater and lesser diameters is no less than 10:8, exhibiting high resistance to counter-clockwise movement of the nail (unseating) as the material it is driven into flexes in use.
6. A removable power driven collated nail as claimed in any preceding claim has a sharp tip with an angle of no more than 45 degrees, plus or minus 5%, which penetrates immediately even in the hardest of material.
7. A removable power driven collated nail as claimed in any preceding claim has a oval umbrella type helical thread no more than 10% of the length of the nail, plus or minus 5%, securing the upper jointed material, eliminating protrusion of the power driven collated nail in the event of material shrinkage over time.
8. A removable power driven collated nail as claimed in any preceding claim has a balance between core and surface hardness to exhibit both ductility (fifteen degrees of bend before snapping) and strength, intended to allow movement in application, resistance to breakage and resistance to recess damage, ideal for the flooring boards made of either conventional timber or the new high density fibre boards where ductility is a necessity due to board movement under use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0722576A GB2454728B (en) | 2007-11-16 | 2007-11-16 | Removable power driven collated nail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0722576A GB2454728B (en) | 2007-11-16 | 2007-11-16 | Removable power driven collated nail |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0722576D0 GB0722576D0 (en) | 2007-12-27 |
| GB2454728A true GB2454728A (en) | 2009-05-20 |
| GB2454728B GB2454728B (en) | 2012-03-07 |
Family
ID=38896474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0722576A Active GB2454728B (en) | 2007-11-16 | 2007-11-16 | Removable power driven collated nail |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2454728B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078894A (en) * | 1980-06-19 | 1982-01-13 | Rylands Whitecross Ltd | Nails |
| GB2136906A (en) * | 1983-03-24 | 1984-09-26 | Rylands Whitecross Ltd | Strip collatable nails |
-
2007
- 2007-11-16 GB GB0722576A patent/GB2454728B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2078894A (en) * | 1980-06-19 | 1982-01-13 | Rylands Whitecross Ltd | Nails |
| GB2136906A (en) * | 1983-03-24 | 1984-09-26 | Rylands Whitecross Ltd | Strip collatable nails |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2454728B (en) | 2012-03-07 |
| GB0722576D0 (en) | 2007-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 732E | Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977) |
Free format text: REGISTERED BETWEEN 20230629 AND 20230705 |