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WO2015134002A1 - Clé à cliquet de serrage - Google Patents

Clé à cliquet de serrage Download PDF

Info

Publication number
WO2015134002A1
WO2015134002A1 PCT/US2014/020438 US2014020438W WO2015134002A1 WO 2015134002 A1 WO2015134002 A1 WO 2015134002A1 US 2014020438 W US2014020438 W US 2014020438W WO 2015134002 A1 WO2015134002 A1 WO 2015134002A1
Authority
WO
WIPO (PCT)
Prior art keywords
wrench
ratchet
ratcheting
open
segments
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
Application number
PCT/US2014/020438
Other languages
English (en)
Inventor
Ali W. ELDESSOUKY
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to PCT/US2014/020438 priority Critical patent/WO2015134002A1/fr
Priority to US15/123,202 priority patent/US20170072542A1/en
Publication of WO2015134002A1 publication Critical patent/WO2015134002A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
    • B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
    • B25B13/462—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis
    • B25B13/463—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member the ratchet parts engaging in a direction radial to the tool operating axis a pawl engaging an externally toothed wheel
    • 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
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/04—Spanners; Wrenches with rigid jaws of ring jaw type
    • 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
    • B25B13/02—Spanners; Wrenches with rigid jaws
    • B25B13/08—Spanners; Wrenches with rigid jaws of open jaw type
    • 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
    • B25B13/28—Spanners; Wrenches with adjustable jaws the jaws being pivotally movable

Definitions

  • UPSN 4,327,610 issued to Angelo Chiarenza on May 4, 1982, discloses an open end wrench that includes a slot to receive a nut, along with spring segments that project inwardly to act as the ratcheting device. The ends of the segments turn on the flat surfaces of the nut when the wrench is turned in the tightening direction. In order to effect a ratchet action, the cantilever springs flex to skim over the corners of the nut and then spring back to apply pressure to the flat surfaces of the nut.
  • the open ended wrench does not completely surround the nut to provide full and complete engagement of all surfaces to provide maximum torque.
  • the present invention provides various aspects, including a clampable ratcheting wrench that is capable of being opened and closed without slipping the wrench over the end of a nut to be tightened or loosened. Also disclosed is a method of making same, and a method of using the wrench.
  • This wrench overcomes many of the aforementioned problems with the prior art because the present invention may be used on a nut that is in a very tight position where a traditional wrench would not fit, nor would a conventional wrench be capable of ratcheting.
  • a first aspect of the present invention includes certain features including a ratcheting portion which can be opened to go around a nut to be tightened rather than slipping the ratchet over the nut.
  • a ratcheting portion which can be opened to go around a nut to be tightened rather than slipping the ratchet over the nut.
  • Prior open end ratchet wrenches utilized a swing- around arm to effect a fully closed ratchet, although there are many instances where there just is not enough
  • the first aspect of the invention discloses an interlocking ratchet piece design
  • a second aspect of the invention discloses another ratchet piece design with structural channeling to secure the ratchet segments in alignment so that the segments do not come out of the wrench.
  • a third aspect of the present invention discloses an open ended ratchet wrench having a one piece housing that operates with a notched key rotation system to give a positive ratcheting action, as described more fully hereinbelow.
  • Figure 2A is a perspective view of the wrench with the open end in the open position
  • Figure 2B is an environmental perspective view of the wrench being used to tighten a nut
  • Figure 3A is a top plan view of the wrench in a closed position
  • Figure 3B is a top plan view of the wrench in an open position
  • Figure 3C is a top plan view of the wrench in a semi-closed position
  • Figure 4A is a cross sectional view of the inner workings of the first aspect of the invention
  • Figure 4B is a perspective view of the inner workings of the first aspect of the invention.
  • Figure 4C is an exploded view of a portion of the invention.
  • Figure 5 is an exploded view of the ratchet pieces illustrating the interlocking feature of the first aspect of the invention
  • Figure 6 is a top perspective view of a single ratchet segment
  • Figure 7 is a top plan view of the interlocking ratchet segments of Fig. 5 when interlocked;
  • Figure 8 is a top plan view of a single ratchet segment
  • Figure 11 is a bottom cross-sectional view of the wrench, showing the relative placement of the lock and the lock spring constructed in accordance with the present invention
  • Figure 11 A is a rear perspective view of an individual ratchet segment
  • Figure 1 IB is a front perspective view of the ratchet segment of Fig. 11 A;
  • Figure 11C is a perspective view of a release slide
  • Figure 1 ID is a perspective view of a gear used with the retractable slide
  • Figure 12 is a top plan view of the second aspect of the present invention in an open position
  • Figure 14 is a top plan view of the wrench with the upper clamp housing removed to show the inner workings
  • Figure 14A is a perspective view of a lock pawl front elevation
  • Figure 14C is the rear elevational view of the lock pawl
  • Figure 16 is a top plan view of the wrench with the upper clamp housing removed to show the inner workings while the teeth are engage to illustrate how the lock pawl open to stop the lock;
  • Figure 17A is a cutaway side elevational view of lock balls in a lockdown position
  • Figure 20A-20B show perspective views of a one-piece housing of another aspect of the present invention.
  • FIG. 24 is an exploded view of this aspect of the present invention with the top and bottom plates holding the keys in position within the housing;
  • Figures 25A and 25B show an environmental view of yet another aspect of the invention with pivoting ratchet keys approaching a workpiece and engaging a workpiece, respectively;
  • Figures 26A-26D illustrate the pivoting ratchet keys and the ratchet spring permitting ratcheting against a nut, without the use of a pawl;
  • Figures 27A-27D provide more detailed drawings of the actual pivoting ratchet keys, the pivot and the spring.
  • Figure 28 shows a full perspective view of a open ended ratcheting wrench made in accordance with the present invention with a traditional wrench at one end and my novel wrench at the other.
  • the present clamping ratchet wrench invention disclosure includes various aspects of the invention, each including a series of individual ratchet key segments that can remain in the wrench while it is being opened and closed in synchronicity in an automatic fashion. Such aspects help to provide a wrench that can be clamped around a pipe with a nut surrounding the pipe, and then ratcheted to tighten or loosen the nut.
  • the present invention also discloses a clamp ratchet wrench that includes a finger operable retractable handle that when retracted, the clamp automatically opens due to a spring action, and can be pressed directly against the nut of a pipe that needs to be tightened. When the clamp ratchet wrench of the present invention is pressed against the nut and the finger operable retractable closing device is pushed toward the pipe, the interlocking key mechanisms are automatically aligned and the clamp wrench portion automatically closes around the nut.
  • FIG. 1 a set of lower and upper alignment balls 26 and 28, respectively, are carried in indentations on the inside of both the upper and lower clamp housing 14 and 16, respectively.
  • the upper and lower alignment balls 26 and 28, respectively fall in the indentations located on the top and bottom of each ratchet key 20 indicating that the ratcheting keys 20 are aligned allowing the wrench to open if the operator retracts the retractable latch button 44.
  • Hips 27 included in the design of the lower and upper clamp housings are in operable communication with the rounded head 25 of separation lever 24.
  • dogs 300 are semi-rectangular posts extending into an aperture within hips 27. Dogs 300 can help to open up the clampable ratchet wrench of the present invention, and are more fully described hereinbelow with reference to Fig. 9.
  • Clamp spring 30 attaches to a clamp spring post 31 and acts to retract the clamping the upper and lower clamp housings to bring the wrench automatically back into place.
  • Ratchet key lock 32 will become operably engaged with gear teeth on the back of ratchet keys 20 during operation.
  • Ratchet lock springs 38 put the ratchet key lock 32 into position in order to prevent ratchet keys 20 from sliding out of upper and lower clamp housing 6 and 14, respectively, when separation lever track gear 33 moves upwardly and urges separation lever 24 into operation.
  • Button lock-in pins 34 hold the track gear 33 and the retractable latch button 44 in place, such that track gear 33 is used to urge separation lever 24 forward or backward to engage or disengage the housings into position around the nut.
  • Lock spring 36 is attached to the back of lock 22 to automatically push lock 22 forward consequently locking upper housing clamp 16 and lower housing clamp 14.
  • the ratcheting keys 20 have gear faces on their backside. These gear faces have been engineered to mate against the surface of a pawl 42 which is kept in place by pawl spring 40.
  • a retractable latch button 44 is used by the operator with a thumb action to push the lock on the track gear backward and forward to press the upper and lower housings into their clamped and undamped positions.
  • the entirely closed clamping mechanism is generally denoted by numeral 80, in Figure 3A, while the entirely open mechanism is denoted by numeral 82 as shown in Figure 3B.
  • the wrench approaches the nut in an open position, and then the latch button shown on top can be utilized to clamp the wrench around the nut into the closed position.
  • Figure 3C illustrates the partially opened configuration 84, where the pipe is too close to the corner of a limited access area. In this situation, only one half of the clamping mechanism can be opened up. However, utilizing the latch button, it can still be closed and then ratcheted to tighten.
  • Figure 9 is a top plan view of the working distal end of the clamp ratchet wrench of the present invention.
  • This working end is generally denoted by numeral 220 and show the front faces 202 with an exposed interlocking keyblade 204 disengaged from its adjacent key.
  • Clamp housing 16 provides the structure for opening and closing the wrench.
  • dogs 300 are semi-rectangular posts extending into an aperture shown in the close-up shadow in this Figure 9.
  • the lock 122 sits on top of, and is engaged with, separation lever 124 having a rounded head 125.
  • Figure 9 is accompanied by a close up vignette illustration showing the relative placement of dogs 300 as they extend into the slot and then are forced outwardly into the round aperture, thereby permitting full rotation.
  • dog posts 300 Once dog posts 300 are rotated within the rounded aperture, the housing is forced apart, thereby disengaging keyblades 204 at the outer most circumference and at the innermost circumference. Once the keyblades clear their engagement point from behind face section 202, the clamp ratchet wrench can be opened up as shown more clearly with respect to Figures 3A-3C.
  • Alignment pins 328 extend slightly above the upper surface of the upper clamp housing 314, so that the user can feel when the pins 328 are extended. When the pins 328 extend upwardly enough for the user to feel them, then the user knows that the ratchet segments 324 are in alignment such that the wrench 310 can be opened.
  • lock pawl 400 has a pawl catch 406 that is received by indentations in pawl teeth 401.
  • the lock stop 404 catches on lock 344 when in position and allows the lock to push forward, breaking open the wrench. This may be seen in greater detail in Figure 12 and 13 when lock 344 is extended forward releasing the clamp housing halves.
  • Lock pawl 400 ends up in proper position when pawl catch 406 is received by indentations in pawl teeth 401.
  • lock pawl 400 has a spring receiver 402 which also acts as the axis for pivoting to receive spring 403, which holds lock pawl in place.
  • ratchet wrench 800 having a handle 818, and further including individually pivoting ratchet keys 812 pinned to housing 810.
  • Ratchet key pivot pins 820 holds ratchet keys 812 in place.
  • Individual ratchet springs 822 urge each of the pivoting ratchet keys 812 back into position against housing skag 824.
  • the ratchet key segments 812 can only be rotated clockwise on their respective pin axes, although not counter clockwise. They lock to tighten the nut when rotated in the counterclockwise direction. In order to loosen the nut, the operator merely has to remove the wrench and turn it over to provide ratcheting in the other direction.
  • FIGS 27A through 27D illustrate the individual components of this aspect.
  • a partially assembled ratchet key segment is generally denoted by numeral 802, and includes ratchet key segment 812 having pivot pin 820 inserted therethrough.
  • Pivot pin 820 is preferably a steel pin to be inserted through the ratchet key 8123 and a complementary hole in the wrench housing (not shown). Pivot pin 820 can be machine pressed into place.
  • Spring 822 is preferably a steel spring clip readily available commercially, and spring 822 is held in place within ratchet key segment 812 .
  • Figure 27B shows a cutaway view of the interior of ratchet key segment 812 and illustrates indent 815.
  • Figure 27C shows a top plan view of ratchet key segment 812 with pivot pin 820 in place and spring 822 extending radially therefrom.
  • Figure 27D shows an individual spring 822 from the side.
  • the present invention finds applicability in the hand tool industry, and especially in the ratcheting wrench segment, where it is desirable to have an open ended ratcheting wrench for mid-pipe fastener manipulation without having to open up the pipe midway to tighten or loosen a nut usually.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)

Abstract

L'invention concerne un boîtier entourant des segments de clé à cliquet individuels fournissant une clé à cliquet de serrage qui peut être ouverte et fermée sans glisser la clé sur l'extrémité d'un écrou devant être serré ou desserré. Cette clé peut être utilisée sur un écrou qui est dans une position très serrée. Le cliquet utilise des segments de cliquet individuels qui sont maintenus en position lorsque la clé est ouverte. Le cliquet peut être ouvert et fermé une fois que les segments de cliquet sont alignés, de sorte que les segments soient maintenus en position pour permettre à la clé d'être ouverte sans que tous les segments ne tombent de la clé. Un premier aspect de l'invention concerne une conception de pièce de cliquet d'enclenchement, tandis qu'un second aspect de l'invention concerne la conception de la canalisation structurale permettant de fixer les segments de cliquet en alignement, de sorte que les segments ne sortent pas de la clé.
PCT/US2014/020438 2010-05-24 2014-03-04 Clé à cliquet de serrage Ceased WO2015134002A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/US2014/020438 WO2015134002A1 (fr) 2014-03-04 2014-03-04 Clé à cliquet de serrage
US15/123,202 US20170072542A1 (en) 2010-05-24 2014-03-04 Clamping ratchet wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US2014/020438 WO2015134002A1 (fr) 2014-03-04 2014-03-04 Clé à cliquet de serrage

Publications (1)

Publication Number Publication Date
WO2015134002A1 true WO2015134002A1 (fr) 2015-09-11

Family

ID=54055667

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2014/020438 Ceased WO2015134002A1 (fr) 2010-05-24 2014-03-04 Clé à cliquet de serrage

Country Status (1)

Country Link
WO (1) WO2015134002A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI609835B (zh) * 2016-06-03 2018-01-01 開蓋器

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446776A (en) * 1944-07-25 1948-08-10 Matson Olof Ratchet wrench having a magnetized sectional socket
US3695125A (en) * 1970-10-06 1972-10-03 Cesco Mfg Corp Open end ratchet wrench
US4095494A (en) * 1977-04-13 1978-06-20 Castoe John H Gear-operated ratchet wrench
US6263765B1 (en) * 1997-10-14 2001-07-24 Mccamley Jeffrey D. Open-ended wrench
US7246541B1 (en) * 2005-06-13 2007-07-24 Divack Robin M Pipefitting engaging tool assembly
US7249539B2 (en) * 2005-04-18 2007-07-31 Decaprio Vincent Open end ratchet wrench
US20090151518A1 (en) * 2007-12-17 2009-06-18 Abunameh Hani A Open end ratchet wrench
US8100036B2 (en) * 2010-02-17 2012-01-24 Ping-Chung Huang Ratchet wrench
US8186246B2 (en) * 1999-09-17 2012-05-29 Weatherford/Lamb, Inc. Gripping or clamping mechanisms
WO2012159941A1 (fr) * 2011-05-21 2012-11-29 Schünke GmbH Clé à œil à cliquet

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2446776A (en) * 1944-07-25 1948-08-10 Matson Olof Ratchet wrench having a magnetized sectional socket
US3695125A (en) * 1970-10-06 1972-10-03 Cesco Mfg Corp Open end ratchet wrench
US4095494A (en) * 1977-04-13 1978-06-20 Castoe John H Gear-operated ratchet wrench
US6263765B1 (en) * 1997-10-14 2001-07-24 Mccamley Jeffrey D. Open-ended wrench
US8186246B2 (en) * 1999-09-17 2012-05-29 Weatherford/Lamb, Inc. Gripping or clamping mechanisms
US7249539B2 (en) * 2005-04-18 2007-07-31 Decaprio Vincent Open end ratchet wrench
US7246541B1 (en) * 2005-06-13 2007-07-24 Divack Robin M Pipefitting engaging tool assembly
US20090151518A1 (en) * 2007-12-17 2009-06-18 Abunameh Hani A Open end ratchet wrench
US8100036B2 (en) * 2010-02-17 2012-01-24 Ping-Chung Huang Ratchet wrench
WO2012159941A1 (fr) * 2011-05-21 2012-11-29 Schünke GmbH Clé à œil à cliquet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI609835B (zh) * 2016-06-03 2018-01-01 開蓋器

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