GB2564859A - A hand tool - Google Patents

A hand tool Download PDF

Info

Publication number
GB2564859A
GB2564859A GB1711846.4A GB201711846A GB2564859A GB 2564859 A GB2564859 A GB 2564859A GB 201711846 A GB201711846 A GB 201711846A GB 2564859 A GB2564859 A GB 2564859A
Authority
GB
United Kingdom
Prior art keywords
hand tool
broad
slim
sides
handle
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
Application number
GB1711846.4A
Other versions
GB201711846D0 (en
GB2564859B (en
Inventor
Vallette Thomas
Feraud Norbert
Amandio Victor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stanley Black and Decker MEA FZE
Original Assignee
Stanley Middle East FZE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stanley Middle East FZE filed Critical Stanley Middle East FZE
Priority to GB1711846.4A priority Critical patent/GB2564859B/en
Publication of GB201711846D0 publication Critical patent/GB201711846D0/en
Publication of GB2564859A publication Critical patent/GB2564859A/en
Application granted granted Critical
Publication of GB2564859B publication Critical patent/GB2564859B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • B25B13/50Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/5091Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on wing nuts, hooks, eye hooks or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B13/00Spanners; Wrenches
    • B25B13/48Spanners; Wrenches for special purposes
    • B25B13/50Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B25/00Implements for fastening, connecting or tensioning of wire or strip
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B31/00Hand tools for applying fasteners
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F15/00Crowbars or levers

Abstract

Disclosed is a hand tool suitable for turning a turnbuckle. The hand tool comprises a handle 202,204,208, and a head 220 coupled to the handle. The head comprises a first end proximal the handle, a second end distal the first end, a middle portion connecting the first and second ends, first and second broad sides, and first and second slim sides. The first broad side is opposite the second broad side, and the first slim side is opposite the second slim side. First and second ends and a middle portion of the first and second broad sides may have substantially similar widths. First and second ends of the first and second slim sides may have widths larger than the widths of a middle portion of the first and second slim sides. The first and second broad sides may be substantially rectangular in shape, and the first and second slim sides may be substantially I-shaped. The first broad side may comprise a series of ridges adjacent the first end, and the second broad side may comprise a series of ridges adjacent the second end. The handle may be extendable, and may comprise a guard 206.

Description

The present invention relates to a hand tool for turning a turnbuckle.
Figure 1 shows a sketch of an operator turning a turnbuckle with a hand tool. A turnbuckle is a device for adjusting the tension or length of ropes, cables, tie rods, and other tensioning systems.
Referring to Figure 1, a turnbuckle 10 may adjust the tension of a metal wire cable 11 used to restrain a container 13, or a stack of containers 13, on a deck 15 of a container ship or other form of transportation. A container ship is subject to significant pitch and roll movement on the sea and its containers must be tightly restrained by the cables 11 to avoid them breaking free as this would cause significant damage and loss.
The turnbuckle 10 comprises a rigid elongate rectangular frame with a longitudinal frame central axis X-X. The frame comprises a pair of threaded nuts 12, 14, one of the threaded nuts being located at each opposing longitudinal end of the frame. Each of the threaded nuts 12, 14 is concentric with the frame central axis X-X. The frame comprises a pair of elongate axis-parallel mutually-spaced bars 16,18, one of the bars 16, 18 being located on each opposite elongate side of the frame central axis X-X. The bars 16, 18 connect the threaded nuts 12, 14 to each other. The frame comprises a crossbar 20 straddling the two bars 16, 18 near where the turnbuckle 10 may preferably be turned by a hand tool 100 to adjust the tension of a metal wire cable
11. The crossbar 20 helps to prevent deflection of the bars 16, 18 when engaged by the hand tool 100. The frame may comprise any number of crossbars 20 depending on the elongation of the turnbuckle 10 in the direction frame central axis X-X.
The components of the frame may be machined from a unitary piece of metal or several pieces of metal welded together. The components of the frame need not be made of metal and may be substituted by corresponding components made of other materials that are suitably rigid for use in a turnbuckle.
One threaded nut 12 may have a left-hand thread and the other threaded nut may have a right-hand thread. The cable 11 may a left-hand threaded screw 19 at its end for threaded engagement with the one threaded nut 12. Fastened to the deck is a pivotable right-hand threaded eye bolt 21 for threaded engagement with the other threaded nut 14. Tension in the cable 11 can be adjusted by rotating the frame about the frame central axis X-X in a direction that causes the threaded screw 19 and the threaded eye bolt 21 to be screwed inwards towards each other or, alternatively, outwards away from each other without twisting the attached cable 11. The crossbar is bowed about the frame axis X-X to provide clearance for any portion of the threaded screw 19 or the threaded eye bolt 21 which may protrude within the confines of the frame.
As the skilled addressee will understand, an alternative type of turnbuckle may substitute the screw 19 or bolt 21 for the threaded nuts 12, 14 at the end of the frame and yet it will operate in a similar manner as the turnbuckle 10 described above.
Initially, the frame may be rotated by hand and this may be easier while the cable 11 is slack. However, rotation by hand becomes overly strenuous as soon as there is tension in the cable 11. An operator 23 needs a hand tool 100 to increase tension in the cable 11 to what is needed to properly restrain a container on the deck
15.
Figure 2 shows a known hand tool for use in the operation described with reference to Figure 1.
Referring to Figure 2, a known hand tool 100 for turning a turnbuckle 10 has an elongate metal body which is about as long as a human arm. The hand tool 100 comprises a tubular metal handle 102 and a substantially rectangular cuboid head 104 integral with the handle 102. The head 104 comprises an upper finger 106 protruding from a free end of the head 104 and a lower thumb 110 protruding from below the head 104, on an opposite side to the finger 106, near to an end of the head 104 that joins the handle 102.
A distance F is between the thumb 110 and the finger 106, measured along a line G including a corner 108 between the finger 106 and head 104 and a corner 112 between the thumb 110 and head 104. The distance F is substantially the same as the outer width of the frame of the turnbuckle 10 measured between the outside of one bar 16 to the outside of the other bar 18.
In use, the hand tool 100 is used to adjust the tension of a cable 11. The cable tightening process is as follows. To increase tension in the cable 11, the head 104 is inserted in the space between the axis-parallel bars 16, 18 of the turnbuckle 10 in the same manner as is shown with the hand tool 100 in Figure 1. The finger 106 engages the bar 16 and the thumb 110 engages the other bar 18. Rotation of the hand tool 100 by the operator 23 in the direction of arrow H abuts the head 104 of the hand tool 100 against opposite sides of the bars 16, 18 and, in doing so, transfers rotation of the handle 102 in the direction of arrow H to the turnbuckle 10. This causes the threaded screw 19 and the threaded eye bolt 21 to be screwed inwards towards each other and increase the tension in the cable 11. Typically, the operator 23 rotates the hand tool
100 through a half turn (about 180 degrees) in direction H, removes the head 104 from the space between the bars 16, 18 and returns the hand tool 100 a half-turn opposite to direction H, and reinserts the head 104 in the space between the axis-parallel bars 16, 18. The finger 106 engages the other bar 18 and the thumb 110 engages the bar
16. Once again, rotation of the hand tool 100 by the operator 23 in the direction of arrow H abuts the head 104 of the hand tool 100 against opposite side of the bars 16, 18 and, in doing so, transfers rotation of the handle 102 another half-turn in the direction of arrow H to the turnbuckle 10. This continues until the threaded screw 19 and the threaded eye bolt 21 have been screwed far enough inwards towards each other to reach a desired tension in the cable 11 so that the container 13 is suitably restrained upon the ship or other transportation vehicle. The elongate handle 102 provides a mechanical advantage that creates a tension in the cable 11 far superior to that which may be achieved by rotation of the turnbuckle 10 by the operator’s bare hands.
The cable loosening process is a reverse of the cable tightening process. The elongate handle 102 provides a mechanical advantage which enables loosening of the cable 11 under tension which would not otherwise be achievable by rotation of the turnbuckle 10 by the operator’s bare hands.
A drawback with the hand tool 100, and other tools used for turning a turnbuckle 10 like, for example, an adjustable wrench or a metal bar, is that they tend to slip when used to turn a turnbuckle. This may lead to interruptions and injury, especially when a lot of effort is used to turn the turnbuckle.
In an aspect of the present invention is there is provided a hand tool for tuning a turnbuckle comprising opposing-threaded ends and a pair of mutually-spaced bars coupled to the threaded ends, wherein the hand tool comprises a handle and a head coupled to the handle, wherein the head has a first end, a second end, a middle portion, a first broad side, as second broad side, a first slim side and a second slim side; and wherein the first end is adjacent to the handle , the second end is distal thereto, and the middle portion connects the first and second ends, and wherein the first broad side is opposite the second broad side the first slim side is opposite the second slim side.
Preferably, the first end, the middle portion and the second end and of the first and second broad sides have widths that are substantially similar.
Preferably, the first and second ends of the first and second slim sides have widths that are larger than the width of the middle portion of the first and second slim sides.
Preferably, the first and second broad sides are substantially rectangular in shape.
Preferably, the first and second slim sides are substantially l-shaped.
Preferably, the first broad side has a series of turnbuckle engagement ridges adjacent the first end and the second broad side has a series of turnbuckle engagement ridges adjacent the second end.
Preferably, the handle of the hand tool is extendible.
Preferably, the handle further includes a hand guard.
Embodiments of the invention, and its advantages, shall be described by way of example and in association with the accompanying drawings of which:
Figure 3 shows a top perspective view of a hand tool according to the present invention for use in the operation shown in Figure 1;
Figure 4 shows an exploded perspective view of the hand tool of Figure 3;
Figure 5A shows a side elevation view of a head of the hand tool of Figure 3;
Figure 5B shows a top view of a head of the hand tool of Figure 3;
Figure 5C shows a bottom view of a head of the hand tool of Figure 3; and
Figure 6 shows a perspective view of the hand tool of Figure 3 gripping a turnbuckle of Figure 1;
Referring to Figures 3 to 6, a new design of hand tool 200 comprises an elongate telescopic metal tool which, in its retracted configuration, is about as long as a human arm. The hand tool 200 comprises a knurled hollow cylindrical handle 202 which surrounds an end of a hollow cylindrical outer telescopic tube 204. Pin 205 may affix cylindrical handle 202 to outer telescopic tube 204. Cylindrical handle 202 may also include a hand protector 206. The hand protector 206 is a rigid piece formed to shield an operator’s hand from impacts. The hand tool 200 also comprises a hollow cylindrical inner telescopic tube 208 which is arranged to slide within the outer telescopic tube 204 from handle 202 to cylindrical insert 210. Cylindrical insert 210 may be held in place by pin 207. The extension and retraction of telescopic tube 208 may be controlled by detent mechanism 209. Detent mechanism 209 may include one or more balls 211 and springs 213, wherein balls 211 are configured to engage holes 215, 217 in telescopic tube 208. A steel wire (not shown) may be fixed between the cylindrical insert 210 and cylindrical handle 202 to avoid the dislocation of the outer telescopic tube 204 from the inner telescopic tube 208. The skilled addressee will recognise that other mechanical systems may be used to avoid the dislocation of the telescopic tubes 204, 208 from each other. The inner telescopic tube 208 is hollow to reduce weight.
The hand tool 200 comprises a head 220 that is rigidly connected to the inner cylindrical arm 208 at an end opposite the handle 202. Head 220 may be attached to the telescopic tube 208 by one or more pins 219, 227. The head 220 has a first end 221, a second end 223, and a middle portion 225. The first end 221 is adjacent the inner cylindrical arm 208 and the second end is distal thereto. The middle portion 225 connects the first and second ends. The head 220 is preferable made of forged steel although it may be made from other suitable manufacturing processes and/or rigid materials. Referring in particular to Figures 5A and 5B, the head 220 comprises a cylindrical male joint 230 for positive engagement with the cylindrical interior of the inner telescopic tube 208. Cylindrical male joint 230, may include one or more holes, 231,233, which are configured to receive pins 219, 227 and affix the head 220 to the telescopic cylinder 208.
The head 220 further comprises a first broad side 235, a second broad side 237, a first slim side 239, and a second slim side 241. As can be seen in Figs 5A 5C, the first and second broad sides 235, 237 are opposite one another, as are the first and second slim sides 239, 241. In a preferred embodiment, when looking at either of the broad sides 235,237, the first end 221, second end 223 and middle portion 225 have a width that is substantially uniform. In comparison, when looking at either of the slim sides, 239, 241, the width of the first and second ends 221, 223 is larger than the width of the middle portion 225. In a preferred embodiment, the first and second broad sides 235, 237 are substantially rectangular in shape; and the first and second slim sides 239, 241, are substantially l-shaped. The l-shaped nature of the slim sides 239, 241 allows the broad sides 235, 237 to be slightly curved near their first and second ends 221,223. When the hand tool 200 is being used, these curves 243, 245 provide natural engagement points for the head 220 to come into contact with bars 16, 18. In a preferred embodiment, a series of ridges 247, 249 may also be provided on the first and second broad sides 235, 237. When the hand tool 200 is in use, these ridges, 247, 249, improve the grip of the head 220 on bars 16,18 by providing spaces where the bars can engage the head.
In use, the hand tool 200 is used to adjust the tension of a cable 11. The cable tightening process is as follows. To increase tension in the cable 11, the second end 223 of head 220 inserted in the space between the bars 16, 18 of the turnbuckle 10, as is shown in Figure 6. The second end 223 of the first broad side 235 engages bar
16, while the first end 221 of the second broad side 237. By applying force in the direction of H, turnbuckle 10 is turned in a clockwise direction. As depicted in Fig. 1, this causes the threaded screw 19 and the threaded eye bolt 21 to be screwed inwards towards each other and increase the tension in the cable 11. Typically, the operator 23 rotates the hand tool 200 through a half turn (about 180 degrees) in direction H, removes the head 200 from the space between the bars 16, 18 and repositions the head 220 of the tool 200 in between bars 16 and 18 at an angle such that the torque applying motion can be repeated. This process is repeated until the desired tension on wire 11 is reached. The telescopic tubes 204,208 provide a mechanical advantage 10 that creates a tension in the cable 11 far superior to that which may be achieved by rotation of the turnbuckle 10 by the operator’s bare hands.
The cable loosening process is a reverse of the cable tightening process. The telescopic tubes 204, 208 provide a mechanical advantage which enables loosening of the cable 11 under tension which would not otherwise be achievable by rotation of 15 the turnbuckle 10 by the operator’s bare hands.

Claims (8)

1. A hand tool (200) for turning a turnbuckle (10) comprising opposing-threaded ends (12, 14) and a pair of mutually-spaced bars (16, 18) coupled to the threaded ends, wherein the hand tool comprises:
a handle (202, 204, 208); and a head (220) coupled to the handle, wherein the head has a first end (221), a second end (223), a middle portion (225), a first broad side (235), a second broad side (237), a first slim side (239) and a second slim side (241); and wherein the first end is adjacent to the handle, the second end is distal thereto, and the middle portion connects the first and second ends; and wherein the first broad side is opposite the second broad side, and the first slim side is opposite the second slim side.
2. A hand tool (200) as claimed in claim 1, wherein the first end (221), the middle portion (225) and the second end (223) and of the first and second broad sides (235, 237) have widths that are substantially similar.
3. A hand tool (200) as claimed in claim 2, wherein the first and second ends (221, 223) of the first and second slim sides (239, 241) have widths that are larger than the width of the middle portion (225) of the first and second slim sides.
4. A hand tool (200) as claimed in claim 3, wherein the first and second broad sides (235, 237) are substantially rectangular in shape.
5. A hand tool (200) as claimed in claim 4, wherein the first and second slim sides (239, 241) are substantially l-shaped.
6. A hand tool (200) as claimed in claim 5, wherein the first broad side (235) has a series of turnbuckle engagement ridges (249) adjacent the first end and the second broad side (237) has a series of turnbuckle engagement ridges (247) adjacent the second end.
7. A hand tool (200) as claimed in any one of the previous claims wherein the handle (202, 204, 208) is extendible.
8. A hand tool (200) as claimed in any one of the previous claims, wherein the handle (202) further includes a hand guard (206).
GB1711846.4A 2017-07-24 2017-07-24 Hand Tool for a Turnbuckle Active GB2564859B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1711846.4A GB2564859B (en) 2017-07-24 2017-07-24 Hand Tool for a Turnbuckle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1711846.4A GB2564859B (en) 2017-07-24 2017-07-24 Hand Tool for a Turnbuckle

Publications (3)

Publication Number Publication Date
GB201711846D0 GB201711846D0 (en) 2017-09-06
GB2564859A true GB2564859A (en) 2019-01-30
GB2564859B GB2564859B (en) 2019-11-13

Family

ID=59771619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1711846.4A Active GB2564859B (en) 2017-07-24 2017-07-24 Hand Tool for a Turnbuckle

Country Status (1)

Country Link
GB (1) GB2564859B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397574A (en) * 1945-01-15 1946-04-02 Max H Thonet Turnbuckle wrench
US2539262A (en) * 1946-10-19 1951-01-23 Tide Water Associated Oil Comp Valve turning tool
US4750252A (en) * 1987-02-12 1988-06-14 Conoco Inc. Tool and method for installing twist-on rod guides
US20030006620A1 (en) * 2001-07-09 2003-01-09 Holman Douglas A. Apparatus to lock and unlock scaffold casters
USD476205S1 (en) * 1999-11-01 2003-06-24 Summit Tool Company Tire demounting tool
FR2906177A1 (en) * 2006-09-22 2008-03-28 Gie Bouygues Contruction Mater Nut e.g. wing nut, tightening and loosening tool for e.g. metallic prop, has curved portion and tab that cooperate by contact with nut such that pivoting of handle creates running torque to turn nut, where curved portion is preceded by pin
CN202412115U (en) * 2011-11-22 2012-09-05 铜陵其利电子材料有限公司 Bidirectional multi-purpose spanner
US20130167692A1 (en) * 2012-01-02 2013-07-04 Jia-Guann Liau Open wrench
GB2502632A (en) * 2012-05-31 2013-12-04 Carl Kammerling Internat Ltd A bush spanner

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2397574A (en) * 1945-01-15 1946-04-02 Max H Thonet Turnbuckle wrench
US2539262A (en) * 1946-10-19 1951-01-23 Tide Water Associated Oil Comp Valve turning tool
US4750252A (en) * 1987-02-12 1988-06-14 Conoco Inc. Tool and method for installing twist-on rod guides
USD476205S1 (en) * 1999-11-01 2003-06-24 Summit Tool Company Tire demounting tool
US20030006620A1 (en) * 2001-07-09 2003-01-09 Holman Douglas A. Apparatus to lock and unlock scaffold casters
FR2906177A1 (en) * 2006-09-22 2008-03-28 Gie Bouygues Contruction Mater Nut e.g. wing nut, tightening and loosening tool for e.g. metallic prop, has curved portion and tab that cooperate by contact with nut such that pivoting of handle creates running torque to turn nut, where curved portion is preceded by pin
CN202412115U (en) * 2011-11-22 2012-09-05 铜陵其利电子材料有限公司 Bidirectional multi-purpose spanner
US20130167692A1 (en) * 2012-01-02 2013-07-04 Jia-Guann Liau Open wrench
GB2502632A (en) * 2012-05-31 2013-12-04 Carl Kammerling Internat Ltd A bush spanner

Also Published As

Publication number Publication date
GB2564859B (en) 2019-11-13
GB201711846D0 (en) 2017-09-06

Similar Documents

Publication Publication Date Title
US9608346B2 (en) Mechanical and/or electrical connector with axial-pull apparatus and methods
US4461284A (en) Surgical retaining device
KR101183852B1 (en) Tightly binding device for bone joining cable
CA1129620A (en) Telescoping tool and coupling means therefor
KR100871889B1 (en) Bone screw
US5084049A (en) Transverse connector for spinal column corrective devices
US7066511B2 (en) Non-conductive extension pole
US20170059968A1 (en) Hand-held articulating arm camera mount
US2510198A (en) Flexible positioner
US6138533A (en) Wrench and extension bar
US9795368B2 (en) Retractor for cranial surgery
US5109737A (en) Extended tool
JP5417503B2 (en) A locking assembly for securing a rod within a receiver of a bone anchoring device for use in spine or trauma surgery
TWI505807B (en) Outrigger with locking mechanism
US5216940A (en) Extension apparatus and method for open ended wrench
US4532833A (en) Strap-type wrench for removing rotatable closures or similar members
EP0528177B1 (en) Internal fixator for the correction of a lumbar spondyldisthesis
US4928669A (en) Straightening device for flexible tubular structures
US5988024A (en) Adjustable box wrench
US3791012A (en) Traction applying tool
US5351365A (en) Universal drag handle
EP0948939B1 (en) Pedicle screw and mounting tool
US5098441A (en) Lithotriptor
US6691595B2 (en) Retractable/folding collapsible wrench
US4623141A (en) Hand held arm and hand muscle builder