WO1994017960A1 - Combination power wrench and power spanner - Google Patents

Combination power wrench and power spanner Download PDF

Info

Publication number
WO1994017960A1
WO1994017960A1 PCT/KR1994/000008 KR9400008W WO9417960A1 WO 1994017960 A1 WO1994017960 A1 WO 1994017960A1 KR 9400008 W KR9400008 W KR 9400008W WO 9417960 A1 WO9417960 A1 WO 9417960A1
Authority
WO
WIPO (PCT)
Prior art keywords
spanner
wrench
combination power
block
lever handle
Prior art date
Application number
PCT/KR1994/000008
Other languages
French (fr)
Inventor
Gae Young Jung
Original Assignee
Gae Young Jung
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 Gae Young Jung filed Critical Gae Young Jung
Priority to AU60113/94A priority Critical patent/AU6011394A/en
Publication of WO1994017960A1 publication Critical patent/WO1994017960A1/en

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
    • B25B13/46—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
    • 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
    • B25B13/46—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
    • B25B13/467—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member which are gear-operated
    • 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
    • B25B13/468—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member with possibility of locking the ratchet mechanism
    • 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
    • B25B23/0007—Connections or joints between tool parts

Definitions

  • the present invention relates to a combination power wrench and power spanner capable of tightening and releasing a bolt or nut by a powerful force.
  • Fig.l is a perspective view of a combination power wrench and power spanner which in partially cut out and seen through,
  • FIG.2 is a perspective view of a structure coupled with a rotary gear to a rotary block
  • FIG.3 is a perspective view of the rotary block
  • FIG.A is a cross sectional view taken along A-A 1 line of FIG.3,
  • FIG.5 is a perspective view of the rotary gear
  • FIG.6 is a perspective view of a pivot pin
  • FIG.7 is a perspective view of a spanner
  • FIG.8-1 is a perspective view of a pivot shaft
  • FIG.8-2 is a cross sectional view taken along B-B' line of FIG.8-1
  • FIG.9 is a perspective view of a box wrench fixing bar
  • FIG.10-1 and FIG.10-2 are cross sectional views inserted with box wrench fixing bar to the rotary shaft, and FIG.11-1 and FIG.11-2 are cross sectional views for explaining an operation of the pivot pin.
  • FIG.l shows a perspective view of a combination power wrench and power spanner which is partly seen through and cut out.
  • a driving gear 4 of a forcing block 3 which is made to be pressed and rotated by a , lever handle 1 with a link 2 and a driven gear 4 ' of a rotary block 5 are coupled so as to be meshed and simultaneously cooperatively moved to a recess A' of a base plate A formed in same shape to top and bottom.
  • a rotary gear 8 perforated with hexagonal opening 7 and two pawls 9.9' are coupled to be contacted at a center of recess 6 of the rotary block 5.
  • Leaf springs 9a,9'a and stopping piece 9b,9'b are respectively fixed to be crossed to each of two pawls 9,9', and pawl shafts 9c,9'c are formed respectively at bottom whereby rotatably inserted to pawl shate holes 9d,9'd so as to be contacted to the rotary gear 8 from both sides.
  • a stepped portion 11 is formed to a rear portion of shortened spanner 10 of FIG.7 so as to be mounted to and released from an inserting opening 12 at front end of the rotary block 5 formed with stepped portion 11'.
  • a pivot shaft 13 in FIG.8-1 and FIG.8-2 is made such that upper and lower friotional portions 15, 15' are respectively formed at top and bottom of a hexagonal bar 14, and an insert blocking plate 16 is formed at top of the upper frictional portion 15, and a screw portion 17 is formed at bottom of the lower frictional portion 15 so as to be tightened by a nut 18 from exterior of the base plate A.
  • a box wrench adapter 20 of FIG.9 is inserted into a rectangular hole 19 pierced through in top and bottom direction at center of the pivot shaft 13 so as to be protruded with moving to top and bottom direction in response to the requirement as shown in FIG.10-1, and therefore it is made to be protruded with moving to top and bottom as shown in FIG.10-2.
  • a fixing means 23 formed with a holding recess 21, a hooking groove 22 and a fixing lever 23' is fixed to the recess A of near and of the base plate A so as to be pivotable around a pivot pin 24, and a hooking pin 25 is fixed to a recess 1' of rear end of the lever handle 1.
  • the pawl 9, 9' makdes the rotary gear 8 to rotate to a direction of arrow 27 as shown in FIG.11-1 as the stopping piece 9b,9'b is hooked to a rotary gear, and when the lever handle 1 is pulled up to an opposite direction, the rotary block 5 becomes to rotate to a direction of arrow 27 which is an opposite direction of arrow 27'.
  • the pawl 9, 9' makes the stopping piece 9b, 9'b of the pawl 9, 9' to rotate to a direction of arrow 28 as shown in FIG.11-2 and the spring 9a, 9 'a rotates to a direction of arrow 28' whereby makes the roatry gear 8 to be stopped while passing over and over the gear 8' so that the rotary block is returned to an original state.
  • a box wrench adapter 20 is movably inserted toward up and down into a rectangular hole 19 pierced through a center of the pivot shaft 13 coupled by inserting into a hexagonal hole 7 of the rotary gear 8, so that it is made to be simple and compact in its structure and excellent in coupling characteristic. And, since it is a structure that the box wrench adapter 20 is made to be protruded by moving to up and down in response to the requirement, an obstruction on working due to the protruded box wrench adapter 20 can be prevented in a time of nut tightening or releasing work.
  • the fixing means 23 maked the hooking pin 25 of the lever handle 1 to be abutted to the holding recess 21 and making the lever handle 1 to be easily pulled up to an opposite direction of arrow 26 so that the repeating pressing down operation can be essily carried out.
  • the fixing lever 23' is rotated to a direction of arrow 23" and the hooking pin 25 of the lever handle 1 is inserted into a hooking groove 22 whereby the lever handle 1 and the bass plate A are fixed to be integral so that rapid operation can be carried out as general ratchet wrench.

Landscapes

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

Abstract

Combination power wrench and spanner is made in which a driving gear (4) of a forcing block (3) to be rotated by pressing a lever handle (1) with link (2) provided to a recess (A') of a base plate (A) formed in same shape at top and bottom and a driven gear (4') of a rotary block (5), are meshed so as to be cooperatively moved, so that a bolt or not can be tightened or released by a powerful force. The forcing block (3) provided with lever handle (1) and link (2) and the rotary block (5) provided with a box wrench adapter (20) and the spanner (10) are cooperatively moved by meshing with a driving gear (4) and a driven gear (4'). Frictional portions (15, 15') are formed at top and bottom of a hexagonal bar (14), an insert blocking plate (16) is formed at top of the frictional portion (15), a screw portion (17) is formed at bottom of the frictional portion (15') whereby tightened by a nut (18), and a rectangular box wrench adapter (20) is inserted into a rectangular hole (19) pierced through at center toward up and down.

Description

TITLE OF INVENTION
COMBINATION POWER WRENCH AND POWER SPANNER
TECHNICAL FIELD
The present invention relates to a combination power wrench and power spanner capable of tightening and releasing a bolt or nut by a powerful force.
BACKGROUND ART
There had been many cases which needed very much force and was hard to tighten or release a nut by a conventional wrench or spanner and there has been offered a power wrench having been developed until now which utilizes a strengthening of force in accordance with the reducing of ratio by a reducing gears utilizing multi-step gears, however since it was inconvenient in using and had a difficulty in manufacturing, it has had a disadvantage that it was a high cost product, and bdsides it could not be used for a spanner and the like.
DISCLOSURE OF DEVICE
Therefore, it is an object of the present invention, in order to manufacture a combination power wrench and power spanner which is simple is structure and convenient in using and low priced, to provide a combination power wrench and power spanner capable of tightening and releasing a nut by rotating a pivot shaft fixed with wrench socket or spanner by a powerful force by utilizing a powerful pressing force as a fonventional vice grip plier applying a rotating lever made in double.
BRIEF DESCRIPTION OF DRAWINGS
Fig.l is a perspective view of a combination power wrench and power spanner which in partially cut out and seen through,
FIG.2 is a perspective view of a structure coupled with a rotary gear to a rotary block,
FIG.3 is a perspective view of the rotary block, FIG.A is a cross sectional view taken along A-A1 line of FIG.3,
FIG.5 is a perspective view of the rotary gear, FIG.6 is a perspective view of a pivot pin,
FIG.7 is a perspective view of a spanner, FIG.8-1 is a perspective view of a pivot shaft, FIG.8-2 is a cross sectional view taken along B-B' line of FIG.8-1, FIG.9 is a perspective view of a box wrench fixing bar,
FIG.10-1 and FIG.10-2 are cross sectional views inserted with box wrench fixing bar to the rotary shaft, and FIG.11-1 and FIG.11-2 are cross sectional views for explaining an operation of the pivot pin.
BEST MODE FOR CARRYING OUT THE DEVICE
Explaining the present invention in more detail with reference to the accompanying drawings, it will be as follows.
FIG.l shows a perspective view of a combination power wrench and power spanner which is partly seen through and cut out.
In the drawing, a driving gear 4 of a forcing block 3 which is made to be pressed and rotated by a , lever handle 1 with a link 2 and a driven gear 4 ' of a rotary block 5 are coupled so as to be meshed and simultaneously cooperatively moved to a recess A' of a base plate A formed in same shape to top and bottom. As shown in FIG.2. FIG.3. FIG.4 and FIG.5, a rotary gear 8 perforated with hexagonal opening 7 and two pawls 9.9' are coupled to be contacted at a center of recess 6 of the rotary block 5.
Leaf springs 9a,9'a and stopping piece 9b,9'b are respectively fixed to be crossed to each of two pawls 9,9', and pawl shafts 9c,9'c are formed respectively at bottom whereby rotatably inserted to pawl shate holes 9d,9'd so as to be contacted to the rotary gear 8 from both sides.
A stepped portion 11 is formed to a rear portion of shortened spanner 10 of FIG.7 so as to be mounted to and released from an inserting opening 12 at front end of the rotary block 5 formed with stepped portion 11'.
A pivot shaft 13 in FIG.8-1 and FIG.8-2 is made such that upper and lower friotional portions 15, 15' are respectively formed at top and bottom of a hexagonal bar 14, and an insert blocking plate 16 is formed at top of the upper frictional portion 15, and a screw portion 17 is formed at bottom of the lower frictional portion 15 so as to be tightened by a nut 18 from exterior of the base plate A.
It is desirable that oilless bearing or ball bearing or needle bearing as used for decreasing the frictional resistance in accordance with the rotation to the upper and lower frictional portions 15, 15'. A box wrench adapter 20 of FIG.9 is inserted into a rectangular hole 19 pierced through in top and bottom direction at center of the pivot shaft 13 so as to be protruded with moving to top and bottom direction in response to the requirement as shown in FIG.10-1, and therefore it is made to be protruded with moving to top and bottom as shown in FIG.10-2. In FIG.l, a fixing means 23 formed with a holding recess 21, a hooking groove 22 and a fixing lever 23' is fixed to the recess A of near and of the base plate A so as to be pivotable around a pivot pin 24, and a hooking pin 25 is fixed to a recess 1' of rear end of the lever handle 1.
INDUSTRIAL APPLICABILITY
Now, explaining an operation and effect of the present invention in more detail, it will be as follows.
When the lever handle 1 is pressed to a direction of arrow 26, it is transfereed by a strong force by an opperation of the lever handle 1 with a link 2 whereby a rotary block 5 is rotated to a direction of arrow 27 through a driving gear 4 and a driven gear 4' meshed one another, so that it can be tightened or released by rotating powerfully a spanner 10 or a not provided at a box wrench socket which is not shown. at this moment, the pawl 9, 9' makdes the rotary gear 8 to rotate to a direction of arrow 27 as shown in FIG.11-1 as the stopping piece 9b,9'b is hooked to a rotary gear, and when the lever handle 1 is pulled up to an opposite direction, the rotary block 5 becomes to rotate to a direction of arrow 27 which is an opposite direction of arrow 27'.
Then, the pawl 9, 9' makes the stopping piece 9b, 9'b of the pawl 9, 9' to rotate to a direction of arrow 28 as shown in FIG.11-2 and the spring 9a, 9 'a rotates to a direction of arrow 28' whereby makes the roatry gear 8 to be stopped while passing over and over the gear 8' so that the rotary block is returned to an original state.
Next, as the lever handle 1 is continuously pressed down and pulled up, the rotary gear 8 is repeatedly- rotated.
A box wrench adapter 20 is movably inserted toward up and down into a rectangular hole 19 pierced through a center of the pivot shaft 13 coupled by inserting into a hexagonal hole 7 of the rotary gear 8, so that it is made to be simple and compact in its structure and excellent in coupling characteristic. And, since it is a structure that the box wrench adapter 20 is made to be protruded by moving to up and down in response to the requirement, an obstruction on working due to the protruded box wrench adapter 20 can be prevented in a time of nut tightening or releasing work.
In case of requiring a powerful force for the rotation of nut, the fixing means 23 maked the hooking pin 25 of the lever handle 1 to be abutted to the holding recess 21 and making the lever handle 1 to be easily pulled up to an opposite direction of arrow 26 so that the repeating pressing down operation can be essily carried out.
Further, in case when the nut can be essily rotated without powerful force, the fixing lever 23' is rotated to a direction of arrow 23" and the hooking pin 25 of the lever handle 1 is inserted into a hooking groove 22 whereby the lever handle 1 and the bass plate A are fixed to be integral so that rapid operation can be carried out as general ratchet wrench.
Thus, in accordance with this invention, since it is a structure making the nut to be rotated by utilizing a powerful pressing force applied to the forcing block 3 of a vice grip plier, a combination power wrench and power spanner which is simple in structure and convenient in work can be manufactured.

Claims

CLAIMS :
1. Combination power wrench and spanner in which a lever handle 1, a link 2 and a forcing block 3 are provided to a recess A' of base plate A formed in same shape at top and bottom; a driving gear 4 and a driven gear 4' are meshed to be cooperatively moved between a forcing block 3 and a rotary block which is provided with a shortened spanner 10 at front end and provided with also a pivot shaft 13 and a box wrench adapter 20 and the like, a fixing means 23 formed with a holding recess 21 and a hooking gooove 22 is provided at rear ' end of the base plate A.
2. Combination power wrench and spanner as defined in claim 1 having a structure in which the forcing block 3 provided with the lever handle 1 and a link 2, and the rotary block 5 provided with a box wrench adapter 20 and a spanner 10, are meshed by a driving gear 4 and a driven gear 4 ' .
3. Combination power wrench and power spanner as defined in claim 1 having a structure in which upper and lower frictional portions 15, 15' are respectively formed at top and bottom of a hexagonal bar 14, an insert blocking plate 16 is formed at top of the upper frictional ortion 15, a screw portion 17 is formed at bottom of the lower frictional portion 15' and then tightened by a nut 18, and a rectangular boxwrench adapter 20 is inserted into a reotangular hole 10 pierced through at center toward up and down.
4. Combination power wrench and spanner as defined in claim 1 having a structure in which a stepped portion 11 is formed at rear of a shortened spanner 10, an inserting opening 12 and a stepped portion 11' are formed at front of the rotary block 5 so as to be able to insert and draw out the stepped portion 11 of the shortened spanner 10 into and from the inserting opening 12.
5. Combination power wrench and spanner as defined in claim 1 having a structure in which a fixing means 23 formed with a holding recess 21, a hooking groove 22 and a fixing lever 23' is provided to be freely rotated around a pivot pin 24 at rear end of the base plate A, and a hooking pin 25 is fixed at rear recess of the lever handle 1.
PCT/KR1994/000008 1993-02-04 1994-02-04 Combination power wrench and power spanner WO1994017960A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU60113/94A AU6011394A (en) 1993-02-04 1994-02-04 Combination power wrench and power spanner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR2019930001532U KR940020360U (en) 1993-02-04 1993-02-04 Heavy Wrench and Heavy Spanner
KR1993/1532 1993-02-04

Publications (1)

Publication Number Publication Date
WO1994017960A1 true WO1994017960A1 (en) 1994-08-18

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ID=60671978

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR1994/000008 WO1994017960A1 (en) 1993-02-04 1994-02-04 Combination power wrench and power spanner

Country Status (3)

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KR (1) KR940020360U (en)
AU (1) AU6011394A (en)
WO (1) WO1994017960A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0782903A1 (en) * 1996-01-05 1997-07-09 Wenger S.A. Multipurpose tool for receiving removable tools
EP0936959A1 (en) * 1996-10-29 1999-08-25 Victorinox Ag Multiple function tool
FR2854091A1 (en) * 2003-04-24 2004-10-29 Jean Claude Maret Screwing/unscrewing tool e.g. screwdriver, includes cogwheel connected to sprocket wheel that is engaged with another cogwheel which is driven by rack connected with push-button
WO2007126368A1 (en) * 2006-05-03 2007-11-08 Linus Hedlund A gripping tool
CN101920482A (en) * 2010-09-29 2010-12-22 奇瑞汽车股份有限公司 Wrench

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1183230A (en) * 1913-08-29 1916-05-16 Frederick Stanley Perkins Combination ratchet-tool.
US2633044A (en) * 1950-11-28 1953-03-31 Pasquariello James Ratchet wrench
GB2146279A (en) * 1983-03-18 1985-04-17 Chen Chaur Yang Adjustable wrench
US5095782A (en) * 1991-06-21 1992-03-17 Armand Galea Open-ended adjustable ratchet wrench

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1183230A (en) * 1913-08-29 1916-05-16 Frederick Stanley Perkins Combination ratchet-tool.
US2633044A (en) * 1950-11-28 1953-03-31 Pasquariello James Ratchet wrench
GB2146279A (en) * 1983-03-18 1985-04-17 Chen Chaur Yang Adjustable wrench
US5095782A (en) * 1991-06-21 1992-03-17 Armand Galea Open-ended adjustable ratchet wrench

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0782903A1 (en) * 1996-01-05 1997-07-09 Wenger S.A. Multipurpose tool for receiving removable tools
US5809600A (en) * 1996-01-05 1998-09-22 Wenger Sa Mutifunctional tool able to receive removable attachments
EP0936959A1 (en) * 1996-10-29 1999-08-25 Victorinox Ag Multiple function tool
EP0936959A4 (en) * 1996-10-29 2001-11-14 Victorinox Ag Multiple function tool
FR2854091A1 (en) * 2003-04-24 2004-10-29 Jean Claude Maret Screwing/unscrewing tool e.g. screwdriver, includes cogwheel connected to sprocket wheel that is engaged with another cogwheel which is driven by rack connected with push-button
WO2007126368A1 (en) * 2006-05-03 2007-11-08 Linus Hedlund A gripping tool
CN101920482A (en) * 2010-09-29 2010-12-22 奇瑞汽车股份有限公司 Wrench

Also Published As

Publication number Publication date
AU6011394A (en) 1994-08-29
KR940020360U (en) 1994-09-15

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