GB2188389A - Screw driving formations - Google Patents
Screw driving formations Download PDFInfo
- Publication number
- GB2188389A GB2188389A GB08529527A GB8529527A GB2188389A GB 2188389 A GB2188389 A GB 2188389A GB 08529527 A GB08529527 A GB 08529527A GB 8529527 A GB8529527 A GB 8529527A GB 2188389 A GB2188389 A GB 2188389A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- head
- design
- driver
- itself
- 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- Withdrawn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
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000005755 formation reaction Methods 0.000 title 1
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000007767 bonding agent Substances 0.000 claims description 2
- 229910003460 diamond Inorganic materials 0.000 claims description 2
- 239000010432 diamond Substances 0.000 claims description 2
- 230000009977 dual effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 230000000295 complement effect Effects 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B15/00—Screwdrivers
- B25B15/001—Screwdrivers characterised by material or shape of the tool bit
- B25B15/004—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section
- B25B15/007—Screwdrivers characterised by material or shape of the tool bit characterised by cross-section with blade of flat or substantially flat cross-section
-
- 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
- F16B23/00—Specially shaped nuts or heads of bolts or screws for rotations by a tool
- F16B23/0007—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool
- F16B23/0015—Specially shaped nuts or heads of bolts or screws for rotations by a tool characterised by the shape of the recess or the protrusion engaging the tool substantially rectangular, e.g. one-slot head
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
By the addition of a horizontal groove into each vertical side of the screwdriver slot of a cross cut screw head, a rigid attachment of the screw to a complementary screw driver can be achieved. <IMAGE>
Description
SPECIFICATION
Rigid drive screw system
This invention relates to a novel head design for screw type fixings.
Screw fasteners have traditionally been used for both economical and design reasons for the fixing of one or more pieces of material together. Various types of head design have been tried in an attempt to improve both security and operational characteristics. This sys tem. by nature of the novel head design, will take both security and ease of operation further than previous designs.
Using the new head means that the screw is positively attached to the driving tool giving a unique accuracy of drive position and torque. The screw may thus be torque loaded to give a scientifically calculated strength as a bonding agent.
Figure I shows that the head design accepts a tool drive in a way that makes pressure on the screw unnecessary, the thread itself would accommodate inward or outward movement.
The head design would also mean that the screw being physically attached to the driver, a one hand only operation would be required, very important where access is restricted and alleviating the danger of dropping the screw into the area being worked.
The driver would not be prone to slipping from the head to damage surrounding area during insertion and retraction, important where surrounding surfaces are delicate.
The screw head could be incorporated into any conventional screw head type, the slot itself could vary in size without affecting performance or characteristics of operation.
Figure 2 shows a dual tipped screw driver, conventional at one head and design head at the other. By simply reversing trhe blade in the handle desired action is obtained. This screw can be operated as conventioal slot screw without need for special driver. Multi head type screw drivers are commonplace and no claim is made for this design other than the tip itself to match the screw head.
The exact angles formed within the design are not critical, the diamond shape made itself might be varied to suit needs.
Fig. 3 indicates possible manufacturing technique only, alternative processes of manufacture may be required and do not effect the claim as technique may vary form one manufacturer to another rigid drive screw system.
Operational advantages: 1. Positive attachment to screw driver for difficult positional work-one hand access only required.
2. Will not slip from head to damage surrounding area during difficult initial part of insertion into work.
3. Could accept torque loading in basic form if not countersunk type.
4. Does not require the special driver as conventional slot drive incorporated.
5. Could be used with wrench equipment with adaptor for rapid insertion.
7. Could eliminate the need to keep multihead types of screw.
8. Would almost certainly replace 'coachbolt' fixings for heavy timber work.
1. A rigid drive screw incorporating horizontal cuts in vertical lands and parallel to the cross cut.
2. Compatibley shaped driver head as in claims 1 to accept screw head.
**WARNING** end of DESC field may overlap start of CLMS **.
Claims (2)
1. Positive attachment to screw driver for difficult positional work-one hand access only required.
2. Compatibley shaped driver head as in claims 1 to accept screw head.
2. Will not slip from head to damage surrounding area during difficult initial part of insertion into work.
3. Could accept torque loading in basic form if not countersunk type.
4. Does not require the special driver as conventional slot drive incorporated.
5. Could be used with wrench equipment with adaptor for rapid insertion.
7. Could eliminate the need to keep multihead types of screw.
8. Would almost certainly replace 'coachbolt' fixings for heavy timber work.
1. A rigid drive screw incorporating horizontal cuts in vertical lands and parallel to the cross cut.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08529527A GB2188389A (en) | 1985-11-30 | 1985-11-30 | Screw driving formations |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08529527A GB2188389A (en) | 1985-11-30 | 1985-11-30 | Screw driving formations |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8529527D0 GB8529527D0 (en) | 1986-01-08 |
GB2188389A true GB2188389A (en) | 1987-09-30 |
Family
ID=10589048
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08529527A Withdrawn GB2188389A (en) | 1985-11-30 | 1985-11-30 | Screw driving formations |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2188389A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709513A1 (en) * | 1987-03-23 | 1988-10-13 | Salice Arturo Spa | METHOD FOR PRODUCING A SCREW WITH A SCREW HEAD WITH CROSS-SLOTS |
DE9403019U1 (en) * | 1994-02-23 | 1995-06-22 | Marker Deutschland Gmbh, 82438 Eschenlohe | Head of an adjusting spindle or screw with cross recess |
EP1080846A1 (en) * | 1998-02-24 | 2001-03-07 | Katsuyuki Totsu | Screwdriver bit and its combination with screw |
GB2367104A (en) * | 2000-09-26 | 2002-03-27 | Maxim Jago Sam Hobbins | Screw head slot which retains a complementary screwdriver |
DE102012001904A1 (en) * | 2012-01-27 | 2013-08-01 | Heinz Grund | Method for equipping connecting element e.g. hexagonal bolt/screw, involves forming sectional contour by threaded shaft progressing in movement direction of tool to form undercut web contour that is injected into recess |
US20220316513A1 (en) * | 2021-04-02 | 2022-10-06 | William Norton | Fastener |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB607299A (en) * | 1944-11-20 | 1948-08-27 | Albert Edward Hoare | Improvements in screws of slotted head type |
GB1524148A (en) * | 1975-11-07 | 1978-09-06 | Briles Mfg | Method of forming an undercut slot in a fastener head |
GB2037925A (en) * | 1978-09-08 | 1980-07-16 | Gottelier A J D | Screwdriver Bits and Screws |
GB2112485A (en) * | 1980-01-31 | 1983-07-20 | Marvin Bassell | Screw driver and screw head system |
EP0112030A1 (en) * | 1982-11-09 | 1984-06-27 | Titus Tool Company Limited | Rotatable fasteners |
-
1985
- 1985-11-30 GB GB08529527A patent/GB2188389A/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB607299A (en) * | 1944-11-20 | 1948-08-27 | Albert Edward Hoare | Improvements in screws of slotted head type |
GB1524148A (en) * | 1975-11-07 | 1978-09-06 | Briles Mfg | Method of forming an undercut slot in a fastener head |
GB2037925A (en) * | 1978-09-08 | 1980-07-16 | Gottelier A J D | Screwdriver Bits and Screws |
GB2112485A (en) * | 1980-01-31 | 1983-07-20 | Marvin Bassell | Screw driver and screw head system |
EP0112030A1 (en) * | 1982-11-09 | 1984-06-27 | Titus Tool Company Limited | Rotatable fasteners |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3709513A1 (en) * | 1987-03-23 | 1988-10-13 | Salice Arturo Spa | METHOD FOR PRODUCING A SCREW WITH A SCREW HEAD WITH CROSS-SLOTS |
DE9403019U1 (en) * | 1994-02-23 | 1995-06-22 | Marker Deutschland Gmbh, 82438 Eschenlohe | Head of an adjusting spindle or screw with cross recess |
EP1080846A1 (en) * | 1998-02-24 | 2001-03-07 | Katsuyuki Totsu | Screwdriver bit and its combination with screw |
EP1080846A4 (en) * | 1998-02-24 | 2002-05-15 | Katsuyuki Totsu | Screwdriver bit and its combination with screw |
EP1493536A2 (en) * | 1998-02-24 | 2005-01-05 | Katsuyuki Totsu | Combination of driver bit and screw |
EP1493536A3 (en) * | 1998-02-24 | 2005-07-13 | Katsuyuki Totsu | Combination of driver bit and screw |
GB2367104A (en) * | 2000-09-26 | 2002-03-27 | Maxim Jago Sam Hobbins | Screw head slot which retains a complementary screwdriver |
DE102012001904A1 (en) * | 2012-01-27 | 2013-08-01 | Heinz Grund | Method for equipping connecting element e.g. hexagonal bolt/screw, involves forming sectional contour by threaded shaft progressing in movement direction of tool to form undercut web contour that is injected into recess |
US20220316513A1 (en) * | 2021-04-02 | 2022-10-06 | William Norton | Fastener |
Also Published As
Publication number | Publication date |
---|---|
GB8529527D0 (en) | 1986-01-08 |
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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) |