EP2195144A1 - A hand tool - Google Patents
A hand toolInfo
- Publication number
- EP2195144A1 EP2195144A1 EP08788386A EP08788386A EP2195144A1 EP 2195144 A1 EP2195144 A1 EP 2195144A1 EP 08788386 A EP08788386 A EP 08788386A EP 08788386 A EP08788386 A EP 08788386A EP 2195144 A1 EP2195144 A1 EP 2195144A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hand tool
- jaw
- radiator
- generally planar
- tool according
- 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.)
- Ceased
Links
- 238000009428 plumbing Methods 0.000 claims abstract description 19
- 238000005452 bending Methods 0.000 abstract description 8
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000006835 compression Effects 0.000 description 10
- 238000007906 compression Methods 0.000 description 10
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 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
- B25B13/00—Spanners; Wrenches
- B25B13/10—Spanners; Wrenches with adjustable jaws
- B25B13/12—Spanners; Wrenches with adjustable jaws the jaws being slidable
- B25B13/14—Spanners; Wrenches with adjustable jaws the jaws being slidable by rack and pinion, worm or gear
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/48—Spanners; Wrenches for special purposes
- B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
- B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
- B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
- B25B13/5025—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool
- B25B13/5041—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool with movable or adjustable jaws
-
- 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
- B25B13/00—Spanners; Wrenches
- B25B13/58—Jaw attachments
-
- 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
- B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
- B25B23/0085—Counterholding devices
Definitions
- This invention relates to a hand tool, and in particular a hand tool for use with a T-shaped plumbing fitting.
- radiator valve typically connected into a plumbing circuit via a radiator valve at each end thereof.
- the radiator valve has a generally T-shaped configuration with one end of a cross member having a plumbing pipe connected thereto, and the other end of the cross member including a valve that allows a user to isolate the radiator.
- a leg of the radiator valve extends perpendicularly to the cross member, and is typically connected to the radiator by a compression fitting.
- the compression fitting In order to remove or rotate the radiator a user must undo or loosen the compression fitting to allow movement of the radiator relative to a given radiator valve. To prevent leaks the compression fitting is usually tightened to such an extent that a user must use a spanner to undo the compression fitting.
- a hand tool for use with a plumbing fitting, comprising a pair of opposed jaws extending laterally from a handle towards one end thereof, at least one jaw including a generally planar engagement surface extending therefrom at an angle to the length of the handle.
- At least one jaw having a generally planar engagement surface extending therefrom at an angle to the length of the handle provides a surface which a user is able to abut against the cross member of a radiator valve. Abutting the engagement surface against the radiator valve in this way prevents rotation of the radiator valve about an axis passing through the centre of the leg of the valve, while loosening or tightening the compression fitting. Avoiding rotation of the radiator valve prevents bending of the plumbing pipe connected thereto during removal and connection of a radiator valve to a radiator. In addition, avoiding such rotation helps to prevent a threaded connection between the radiator valve and a radiator becoming undone which could cause a leak.
- each jaw includes a generally planar engagement surface extending therefrom at an angle to the length of the handle. Such an arrangement assists a user in abutting the engagement surfaces against the radiator valve.
- the generally planar engagement surfaces lie parallel to one another. Having parallel engagement surfaces helps to ensure that they remain abutted against the radiator valve during use of the hand tool.
- the generally planar engagement surfaces may extend in the same direction. This configuration allows a user to prevent rotation of the radiator valve in both clockwise and anti-clockwise directions, thereby enabling the user to both loosen and tighten a compression fitting without having to change the orientation of the hand tool relative to the radiator valve.
- the generally planar engagement surfaces extend in opposite directions. Such an arrangement increases the moment that the hand tool is able to impart on the radiator valve, for a given length of handle, so as to continue preventing rotation of the valve under high loading.
- the or each generally planar engagement surface may extend from first and second sides of a respective jaw. This configuration helps to distribute the loading on the jaws of the hand tool while providing large engagement surfaces to abut a radiator valve.
- one jaw is moveable relative to the other jaw to vary the spacing between the jaws. This allows a user to use a single hand tool with a range of radiator valves of differing size.
- At least one jaw includes an indicator to indicate the spacing between the jaws.
- an indicator to indicate the spacing between the jaws.
- one jaw is separable from the other jaw. Such an arrangement allows for cleaning of the jaws following use.
- Figure 1 shows a perspective view of a hand tool according to a first embodiment of the invention
- Figure 2 shows another perspective view of the hand tool shown in Figure 1 ;
- Figure 3 shows a perspective view of the hand tool shown in Figure 1 engaged with a radiator valve.
- a hand tool according to a first embodiment of the invention is designated generally by the reference numeral 10.
- the hand tool 10 includes a pair of opposed jaws 12, 14 which extend laterally from a handle 16 towards one end 18 of the handle 16.
- each jaw 12, 14 includes a generally planar engagement surface 20 that extends from the respective jaw 12, 14 at an angle to the length L of the handle 16. In another embodiment of the invention, only one jaw 12, 14 includes the engagement surface 20. In a further embodiment of the invention, at least one jaw includes a recess extending at an angle to the length of the handle. The or each such recess helps a user to align the jaws with a plumbing fitting. In a preferred embodiment of the invention, the or each jaw includes a pair a planar engagement surfaces inclined relative to one another to define a recess therebetween. In the embodiment shown, the engagement surfaces 20 lie parallel to one another. Other embodiments of the invention may include engagement surfaces that are arranged at an angle to one another.
- the engagement surfaces 20 extend from first and second sides 22, 24 of each jaw 12, 14.
- Each jaw 12, 14 may also include a removable sleeve (not shown) to protect a plumbing fitting from damage.
- One jaw 12 is moveable relative to the other jaw 14 to vary the spacing between the jaws 12, 14.
- the moveable jaw 12 is moveably received within a guide slot 26 located in the other jaw 14, and includes a toothed rack 28.
- the toothed rack 28 engages with a rotatable helical screw member 30 mounted in the other jaw 14. Rotation of the helical screw member 30 is translated into linear movement of the toothed rack 28 which causes movement of the moveable jaw 12 relative to the other jaw 14.
- the other jaw 14 includes an indicator 32 in the form of a series of lines 1mm apart to indicate the spacing between the jaws 12, 14.
- the moveable jaw 12 is separable from the other jaw 14 to facilitate cleaning of the jaws 12, 14.
- a user adjust the spacing between the jaws 12, 14, as desired, before abutting each engagement surface 20 against a cross member 34 of a radiator valve 36.
- the engagement surfaces 20 prevent rotation of the radiator valve 36 about an axis A passing through the centre of a leg 38 of the valve 36 while a user loosens or tightens a compression fitting 40 that secures the valve 36 to a radiator 42. Avoiding rotation of the radiator valve 36 in this way prevents bending of a plumbing pipe 44 connected to the radiator valve 36 during removal and connection of the radiator valve 36 to a radiator 42.
- a user may also abut each engagement surface 20 against the spout of a tap (not shown) to restrain the tap during, for example, removal of various fixtures therefrom.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0716059.1A GB2451892B (en) | 2007-08-17 | 2007-08-17 | A hand tool |
PCT/GB2008/002822 WO2009024782A1 (en) | 2007-08-17 | 2008-08-18 | A hand tool |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2195144A1 true EP2195144A1 (en) | 2010-06-16 |
Family
ID=38566546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08788386A Ceased EP2195144A1 (en) | 2007-08-17 | 2008-08-18 | A hand tool |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2195144A1 (en) |
GB (1) | GB2451892B (en) |
WO (1) | WO2009024782A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012010429A1 (en) * | 2010-07-23 | 2012-01-26 | Segerbaeck Dan | Tool for breaking up a padlock |
CN108312098A (en) * | 2018-04-04 | 2018-07-24 | 中国人民解放军陆军装甲兵学院 | Adjustable oil filter dismounting and installation tool |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US900828A (en) * | 1908-04-20 | 1908-10-13 | Leo M Barrett | Adjustable wrench. |
US1676507A (en) * | 1927-01-27 | 1928-07-10 | Spanovic Ninko | Pipe wrench |
GB303313A (en) * | 1928-04-05 | 1929-01-03 | Alphonse Marie Joseph Ghislain | Improvements in adjustable spanners |
GB308151A (en) * | 1928-09-07 | 1929-03-21 | James Binney Arbuckle | Improvements in and relating to wrenches |
US3173317A (en) * | 1963-03-18 | 1965-03-16 | Neff Ted | Slidable jaw wrench having a nut latching means |
US4838132A (en) * | 1982-03-11 | 1989-06-13 | Donald Pyles | Adjustable wrench |
FR2576823A1 (en) * | 1985-02-04 | 1986-08-08 | Sorgi Jean | Spanner with mobile jaw which can be moved facing a fixed jaw |
US4781086A (en) * | 1987-02-17 | 1988-11-01 | Crawford Fitting Company | Fluid fitting wrench |
US4967613A (en) * | 1989-07-11 | 1990-11-06 | Sde Investments, Inc. | Reversible adjustable wrench |
CN2055435U (en) * | 1989-09-30 | 1990-04-04 | 余杭县纺织机械厂 | Adjustable box multipurpose wrench |
CA2074379C (en) * | 1992-07-21 | 1995-01-17 | Frank Peter Holm | Adjustable box wrench |
US5644960A (en) * | 1994-12-02 | 1997-07-08 | William P. O'Brien | Adjustable locking wrench |
US5697166A (en) * | 1995-09-15 | 1997-12-16 | Hommel; Scott David | Measuring accessory for adjustable wrench |
SE9603581L (en) * | 1996-10-01 | 1998-04-02 | Fast Industriprodukter Hb | Hand tool locking device |
US6101906A (en) * | 1999-03-31 | 2000-08-15 | Tai; Daniel | Adjustable spanner having releasable engagement securing mechanism |
CN2465871Y (en) * | 2001-02-17 | 2001-12-19 | 詹东云 | Adjustable spanner |
GB0116230D0 (en) * | 2001-07-03 | 2001-08-29 | Downey Graham A | Improvements to wrenches |
ITBZ20030052A1 (en) * | 2003-10-22 | 2005-04-23 | Intercable Srl | TOOL FOR FIXED HOSE FITTINGS FOR CABLES |
US7131355B2 (en) * | 2003-12-02 | 2006-11-07 | Steven Andrew Williams | Lightweight wrench |
US7062995B2 (en) * | 2004-01-15 | 2006-06-20 | Smith Timothy V | T-connector holding tool and method |
US20070012143A1 (en) * | 2005-07-13 | 2007-01-18 | Tracy Gary E | Socket for socket wrench |
-
2007
- 2007-08-17 GB GB0716059.1A patent/GB2451892B/en active Active
-
2008
- 2008-08-18 EP EP08788386A patent/EP2195144A1/en not_active Ceased
- 2008-08-18 WO PCT/GB2008/002822 patent/WO2009024782A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2009024782A1 * |
Also Published As
Publication number | Publication date |
---|---|
GB0716059D0 (en) | 2007-09-26 |
GB2451892B (en) | 2012-12-26 |
WO2009024782A1 (en) | 2009-02-26 |
GB2451892A (en) | 2009-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20100316 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20101229 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R003 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
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18R | Application refused |
Effective date: 20121025 |