CA1200994A - Adjustable wrench and method for its manufacture - Google Patents
Adjustable wrench and method for its manufactureInfo
- Publication number
- CA1200994A CA1200994A CA000386684A CA386684A CA1200994A CA 1200994 A CA1200994 A CA 1200994A CA 000386684 A CA000386684 A CA 000386684A CA 386684 A CA386684 A CA 386684A CA 1200994 A CA1200994 A CA 1200994A
- Authority
- CA
- Canada
- Prior art keywords
- wrench
- halves
- wrench head
- ratchet
- 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.)
- Expired
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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
ADJUSTABLE WRENCH AND METHOD FOR ITS MANUFACTURE
ABSTRACT OF THE DISCLOSURE
An adjustable wrench comprising in part a wrench head with a fixed jaw and an adjustable jaw which is displaceable by means of a ratchet and an adjustable worm cooperating therewith and in part a shaft, said wrench head and shaft consisting of interconnected units which preferably are manufactured individually. Furthermore, the invention relates to a method for making such wrench.
ABSTRACT OF THE DISCLOSURE
An adjustable wrench comprising in part a wrench head with a fixed jaw and an adjustable jaw which is displaceable by means of a ratchet and an adjustable worm cooperating therewith and in part a shaft, said wrench head and shaft consisting of interconnected units which preferably are manufactured individually. Furthermore, the invention relates to a method for making such wrench.
Description
03 The present inven-tion concerns an improvement of the 04 invention disclosed by United States Patent No. 3,926,077-06 l. Field of the invention 07 This .invention relates to an adjustable wrench which 08 comprises on one hand a wrench head with a fixed jaw ana an 09 adjustable jaw which is displaceable by means of a ratchet and a :l0 corresponding worm for adjusting the adjustable jaw and on the ;ll other hand, a shaft or handle, wherein said wrench head and 12 shaft or handle are interconnected units which preferably are :L3 manufactured individually. The invention also relates to a l~ method for making a wrench of this type.
2. Description of the Prior Art 16 In adjustable wrenches of conven-tional type the wrench 17 head and the shaft are made in one integral piece and are 18 generally produced by die forging. Thus, material of the same l9 high quality has to be used for both the wrench head and the shaft or handle, although it might be justified to make the 21 handle of more low-cost material, as such material would be 22 strong enough for the necessary purpose. With regard to the 23 machining technology complications are involved in making the 24 wrench head and handle in one integral piece, particularly if the guide and butting sur~aces between the wrench head and the 26 ratchet of the slidable jaw are to be flat in order to minimize 27 deformations when the wrench is being used.
~8 SUMMARY OF THE INVENTION
2~ The present invention has the object oE eliminating
~8 SUMMARY OF THE INVENTION
2~ The present invention has the object oE eliminating
3~ the disadvantages indicated above essentially by the wrench head 3l with the fixed jaw being comprised of two at least substantially 32 mirro.r-symmetrical halves joined together into one unit, said 33 halves being provided with notches or grooves at their sides 02 facing each other, said notches or grooves ~orming channels ox 03 shaf-t journals required for the ratchet and adjusting worm 04 shaftO
05 In particular, a preferred embodiment o~ the invention 06 is an adjustable wrench structure comprising a handle and a 07 wrench head body having a symmetrical plane and a fixed jaw as ~ well as a jaw which is adjustable by means oE a ratchet and a 0~ worm cooperating therewith. The worm is axially displaceable to a llmi-ted extent and ls lockable in operative position by means :L~ of fork legs disposed on the handle. The wrench head body and 12 handle are individually manufactured components which are l3 articulately connected to each other. The wrench head body with 14 -the Eixed jaw is composed of two mainly mirror sy~metrical halves which have a common principal plane coincident with said 16 symmetry plane and which are fixedly connected to each other, 17 the halves being in their opposing contact surfaces provided 18 with groove halves enclosing the ratchet and the shaft of the 19 adjusting worm, respectively, thereby cornplementing each other.
The groove halves are provided with first engagement surfaces 21 supporting the ratchet and being perpendicular to the principal 22 plane of the wrench. The first engagement surfaces are arranged 23 to cooperate with corresponding second engagement surfaces 2~ arranged on the ratchet and facing the displaceable jaw. The second engagement surfaces also are perpendicular to the 26 principal plane oE the wrench. The structure thereby enable the 27 manufacture o~ the wrench head of material of structurally 2~ hi~her quality than the quality of the material of the handle.
2~ BRIEF DESCRIPTION OF THE DRAWINGS
~3n The invention will be described more specifically 31 below with reEerence to the accompanying drawings, in which:
32 Figures la and lb are schematicaly la~.eral views of ~3 two mirror-symmetrical halves of a wrench head of a so-called acljustable ratchet wrench, wherein the displaceable jaw, adjusting worm and certain other components have been removed, 01 3a 02 Figure 2 is a sectional view taken along the line 03 II-II of -the half of the wrench head which is shown in Figure la 04 as viewed Erom the top, 05 Figure 3 is a lateral view of a conventional 06 adjustable wrench partly in section, with the slidable jaw, 07 adjustable worm and certain other components having been 08 removed, 09 Figure 4 is a sectional view of the same wrench along the line IV-IV in Figure 3, L.l Figure 5 is a sectional view of the slidable jaw of an 12 adjustable wrench, L3 Figure 6 is a sectional view along the line II-IIa in 1~ Figure la of a wrench head comprising two mirror-symmetrical halves of -the kind shown in Figures la and lb, and ].6 Figure 7 is a sectional view of an embodiment of the 17 wrench head shown in Figure 6.
18 The two mirror-synmletrical wrench head halves 1, 2 19 illustrated in Figures la and lb are intended to be parts of an adjustable ratchet wrench of the type illustrated and described 21 in United States Patent Specification No. 3,926,077 and are 22 provided with channel-like notches 3, 4 which when the two 23 halves are put together and interconnected into a rigid unit 24 match one another in such manner that the notches 3 form shaft journals or channels for the ratchet in the slidable or 26 displaceable jaw of the wrench, while the notches 4 form 27 journals or channels for the shaft of the adjusting worm 2~ cooperating with the ratchet.
05 In particular, a preferred embodiment o~ the invention 06 is an adjustable wrench structure comprising a handle and a 07 wrench head body having a symmetrical plane and a fixed jaw as ~ well as a jaw which is adjustable by means oE a ratchet and a 0~ worm cooperating therewith. The worm is axially displaceable to a llmi-ted extent and ls lockable in operative position by means :L~ of fork legs disposed on the handle. The wrench head body and 12 handle are individually manufactured components which are l3 articulately connected to each other. The wrench head body with 14 -the Eixed jaw is composed of two mainly mirror sy~metrical halves which have a common principal plane coincident with said 16 symmetry plane and which are fixedly connected to each other, 17 the halves being in their opposing contact surfaces provided 18 with groove halves enclosing the ratchet and the shaft of the 19 adjusting worm, respectively, thereby cornplementing each other.
The groove halves are provided with first engagement surfaces 21 supporting the ratchet and being perpendicular to the principal 22 plane of the wrench. The first engagement surfaces are arranged 23 to cooperate with corresponding second engagement surfaces 2~ arranged on the ratchet and facing the displaceable jaw. The second engagement surfaces also are perpendicular to the 26 principal plane oE the wrench. The structure thereby enable the 27 manufacture o~ the wrench head of material of structurally 2~ hi~her quality than the quality of the material of the handle.
2~ BRIEF DESCRIPTION OF THE DRAWINGS
~3n The invention will be described more specifically 31 below with reEerence to the accompanying drawings, in which:
32 Figures la and lb are schematicaly la~.eral views of ~3 two mirror-symmetrical halves of a wrench head of a so-called acljustable ratchet wrench, wherein the displaceable jaw, adjusting worm and certain other components have been removed, 01 3a 02 Figure 2 is a sectional view taken along the line 03 II-II of -the half of the wrench head which is shown in Figure la 04 as viewed Erom the top, 05 Figure 3 is a lateral view of a conventional 06 adjustable wrench partly in section, with the slidable jaw, 07 adjustable worm and certain other components having been 08 removed, 09 Figure 4 is a sectional view of the same wrench along the line IV-IV in Figure 3, L.l Figure 5 is a sectional view of the slidable jaw of an 12 adjustable wrench, L3 Figure 6 is a sectional view along the line II-IIa in 1~ Figure la of a wrench head comprising two mirror-symmetrical halves of -the kind shown in Figures la and lb, and ].6 Figure 7 is a sectional view of an embodiment of the 17 wrench head shown in Figure 6.
18 The two mirror-synmletrical wrench head halves 1, 2 19 illustrated in Figures la and lb are intended to be parts of an adjustable ratchet wrench of the type illustrated and described 21 in United States Patent Specification No. 3,926,077 and are 22 provided with channel-like notches 3, 4 which when the two 23 halves are put together and interconnected into a rigid unit 24 match one another in such manner that the notches 3 form shaft journals or channels for the ratchet in the slidable or 26 displaceable jaw of the wrench, while the notches 4 form 27 journals or channels for the shaft of the adjusting worm 2~ cooperating with the ratchet.
4 ~
In a method according to the invention e~ach half Or the wrench head is made individually, for example by rolling, sintering, stamping~ casting, die forging and/or punching, and in this way is furnished with said notches and grooves as well as any other holes which may be required. m e method offers specific advantages if the ratchet of the slldable jaw is provided with flat guide and contact surfaces which preferably are at least approximately perpe~dicular to the principal plane of the wrench and are to engage corresponding guide and contact surfaces 5 of the channels or shaft journals of the wrench halves as seen in Figure ~. Hence~ by the method according to the invention it is possible to produce these contact surfaces in the wrench head halves in connection with the rolling, stamping9 sintering, casting or die forging, etc.
of the same, viz. without any complicated and costly drilling and broaching operations otherwise required being necessary.
In addition it is possible to provide the channels or shaft ~ournals of the wrench head halves with a 1~ n; ng o~ a material especially selected with regard to local strains which also may be to advantage when taking possible tolerance requirements into consideration. Such a lining 6 as attached to the ratchet 7 of the slidable ~aw 8 in Figure 5 should preferably be a~fixed to the wrench head in one way or another, for example by soldering, welding or similar.
The two wrench head halves 1, 2 may preferably be made of strips, flat rolled steelJ or sheet material suitable for stamping operations, and said material may at specific places be supplemented by spacers or washers so that the wrench head will have the necessar~ thickness all over. For instance, the gauge of the jaw of the wrench head may exceed the double plate gauge, and therefore the jaw should be supplemented by spacers or washers. The washers ~ may appropriately be put into place in connection with the two wrench head halves being joined to each other, which can be e~fected by a welding or cementing operation or the like. It can naturally be contemplated to also produce the slidable jaw and its corresponding ratchet in similar manner of strips and sheet material by rolling, stamping, sinterîng~ casting or die forging and/or a punching operation. Ir desired, the jaws may be made as separate units of any material having the gauge required ~or the same and then bein~ ~ixed to each other by welding~ whereby the use of spacers or washers can be avoided.
The wrench handle or shaft is indicated by dashed lines in the lower wrench head half 1 of Figure lb and is here designated by 10. The handle of this embodiment is pivotally joined to the wrench head by a pivot and is in this case intended to be made as a shell structure. HoweverJ the handle may optionally be made of solid material and in con-ventional manner by die forging or by precision or shell mold ~orging, respectively. m e two wrench head halves are provided with holes corresponding to one another, one of which holes, i.e. the hole 11, is designed ~or the adjusting worm, while the other, hole 12, is to take up the mentioned pivot. The third hole 13, which is oblong and circularly bent with the pivot as its center, is designed to embrace a spring and arresting mechanism o~ a type known per se and being operative between the ~rench head and the handle. The holes 11, 12 and 13 may be made either when manufacturing each wrench head half or simultaneously rOr both halves a~ter the latter are assembled and ~oined, as the case may be.
The wrench head 14 illustrated in Figures 3 and 4 relates to a wrench of con~entional type and is rigidly connected to the handle 16 by a screw ~oint, welding seam 15 or similar, and it likew~se consists of two mirror-symmetrical halves, of which only one is shown in a lateral view in Fi.gure 3 and in a sectional view along line IV-IV o~ ~igure in Figure 4. These two halves are made in accordance with the method disclosed by the lnvention and are provided with notches and grooves ln the same manner as the wrench head halves 1, 2 which are shown in Figures la, lb and 2 by assembling and joining the two halves and forming the channels and shaft ~ournals 17, 18 required for the ratchet associated with the displaceable Jaw and for the shaft of the worm. Also, in this case, spacers or washers 19 are required, malnly so that the fixed jaw shall ha~e sufficient thickness and strength when the two wrench halves are made of strips or sheet material.
The handle 16 may of course be made in conventional manner, for example by die forging solid material or in a sh~ll structure by ~oining several parts produced by stamping of strips or sheet material or in ~ly other manner, i.e. by precision casting, shell mold casting, sintering~ or the like.
The same may also be the case with the handle 10.
The two wrench halves according to Figures la and lb are wholly mirror-symmetrical. However, it is also possible to arrcmge the wrench head in such manner that only the outer end portion thereof comprising the stationary jaw and the channel-like notches consists of two mirror-symmetrical halves, whereas the inner end porticn Or the wrench head is made integral to one of said halves or constitutes a separately fabricated portion which by a welding operation or the like is connected to the mirror-symmetrical portions at their inner ends.
According ~ the trcmsverse sectional view of Figure 6 the wrench head has an outer end portion comprising two mirror-symmetrical parts 21, 22 ~oined to one another by means of a welding or cementing opera.tion. The lower one of said parts 22 is made integral with an inner end portion 23 of the wrench head. Said inner end portion 23 has an inclined surface 24 abutting a corresponding surface on the part 21 and joined therewith by welding or cementing.
1~
7 ~L2~
In Figure 7, which likewise is a transverse sectional view, a wrench head has an outer end portion comprising two mirror symmetrical parts 25, 26 joined to one another by a weld~ng or cementing operation. However~ in this case the inner end portion 27 is provided with a joint surface 28, appropriately in the form of a "V", abutting a corresponding ~oint surface formed by the two parts 25, 26 of the outer end portion and ~oined therewith by welding or cementing.
In certain cases5 e~pecially when the wrench head is made by casting or die forging, the arrangement of the mirror-symmetrical halves as shown in Figures 6 and 7 involves technical advantages in manufacturing.
ln a modified method according to the invention it is possible to have the handle made integral with one of khe mirror-symmetrical halves or members of the wrench head and to have it connected to the other of said halves or members by a welding or cementing operation. According to a further modification of the invention the handle may also be made in two mirror-symmetrical halves, one of which is inte-gral with one of the mirror-symmetrical halves of the wrench head and the other of which is integral with the other of the mirror-symmetrical halves of the wrench head, said unit being finally lnterconnected by a welding or cementi~
operation.
In a method according to the invention e~ach half Or the wrench head is made individually, for example by rolling, sintering, stamping~ casting, die forging and/or punching, and in this way is furnished with said notches and grooves as well as any other holes which may be required. m e method offers specific advantages if the ratchet of the slldable jaw is provided with flat guide and contact surfaces which preferably are at least approximately perpe~dicular to the principal plane of the wrench and are to engage corresponding guide and contact surfaces 5 of the channels or shaft journals of the wrench halves as seen in Figure ~. Hence~ by the method according to the invention it is possible to produce these contact surfaces in the wrench head halves in connection with the rolling, stamping9 sintering, casting or die forging, etc.
of the same, viz. without any complicated and costly drilling and broaching operations otherwise required being necessary.
In addition it is possible to provide the channels or shaft ~ournals of the wrench head halves with a 1~ n; ng o~ a material especially selected with regard to local strains which also may be to advantage when taking possible tolerance requirements into consideration. Such a lining 6 as attached to the ratchet 7 of the slidable ~aw 8 in Figure 5 should preferably be a~fixed to the wrench head in one way or another, for example by soldering, welding or similar.
The two wrench head halves 1, 2 may preferably be made of strips, flat rolled steelJ or sheet material suitable for stamping operations, and said material may at specific places be supplemented by spacers or washers so that the wrench head will have the necessar~ thickness all over. For instance, the gauge of the jaw of the wrench head may exceed the double plate gauge, and therefore the jaw should be supplemented by spacers or washers. The washers ~ may appropriately be put into place in connection with the two wrench head halves being joined to each other, which can be e~fected by a welding or cementing operation or the like. It can naturally be contemplated to also produce the slidable jaw and its corresponding ratchet in similar manner of strips and sheet material by rolling, stamping, sinterîng~ casting or die forging and/or a punching operation. Ir desired, the jaws may be made as separate units of any material having the gauge required ~or the same and then bein~ ~ixed to each other by welding~ whereby the use of spacers or washers can be avoided.
The wrench handle or shaft is indicated by dashed lines in the lower wrench head half 1 of Figure lb and is here designated by 10. The handle of this embodiment is pivotally joined to the wrench head by a pivot and is in this case intended to be made as a shell structure. HoweverJ the handle may optionally be made of solid material and in con-ventional manner by die forging or by precision or shell mold ~orging, respectively. m e two wrench head halves are provided with holes corresponding to one another, one of which holes, i.e. the hole 11, is designed ~or the adjusting worm, while the other, hole 12, is to take up the mentioned pivot. The third hole 13, which is oblong and circularly bent with the pivot as its center, is designed to embrace a spring and arresting mechanism o~ a type known per se and being operative between the ~rench head and the handle. The holes 11, 12 and 13 may be made either when manufacturing each wrench head half or simultaneously rOr both halves a~ter the latter are assembled and ~oined, as the case may be.
The wrench head 14 illustrated in Figures 3 and 4 relates to a wrench of con~entional type and is rigidly connected to the handle 16 by a screw ~oint, welding seam 15 or similar, and it likew~se consists of two mirror-symmetrical halves, of which only one is shown in a lateral view in Fi.gure 3 and in a sectional view along line IV-IV o~ ~igure in Figure 4. These two halves are made in accordance with the method disclosed by the lnvention and are provided with notches and grooves ln the same manner as the wrench head halves 1, 2 which are shown in Figures la, lb and 2 by assembling and joining the two halves and forming the channels and shaft ~ournals 17, 18 required for the ratchet associated with the displaceable Jaw and for the shaft of the worm. Also, in this case, spacers or washers 19 are required, malnly so that the fixed jaw shall ha~e sufficient thickness and strength when the two wrench halves are made of strips or sheet material.
The handle 16 may of course be made in conventional manner, for example by die forging solid material or in a sh~ll structure by ~oining several parts produced by stamping of strips or sheet material or in ~ly other manner, i.e. by precision casting, shell mold casting, sintering~ or the like.
The same may also be the case with the handle 10.
The two wrench halves according to Figures la and lb are wholly mirror-symmetrical. However, it is also possible to arrcmge the wrench head in such manner that only the outer end portion thereof comprising the stationary jaw and the channel-like notches consists of two mirror-symmetrical halves, whereas the inner end porticn Or the wrench head is made integral to one of said halves or constitutes a separately fabricated portion which by a welding operation or the like is connected to the mirror-symmetrical portions at their inner ends.
According ~ the trcmsverse sectional view of Figure 6 the wrench head has an outer end portion comprising two mirror-symmetrical parts 21, 22 ~oined to one another by means of a welding or cementing opera.tion. The lower one of said parts 22 is made integral with an inner end portion 23 of the wrench head. Said inner end portion 23 has an inclined surface 24 abutting a corresponding surface on the part 21 and joined therewith by welding or cementing.
1~
7 ~L2~
In Figure 7, which likewise is a transverse sectional view, a wrench head has an outer end portion comprising two mirror symmetrical parts 25, 26 joined to one another by a weld~ng or cementing operation. However~ in this case the inner end portion 27 is provided with a joint surface 28, appropriately in the form of a "V", abutting a corresponding ~oint surface formed by the two parts 25, 26 of the outer end portion and ~oined therewith by welding or cementing.
In certain cases5 e~pecially when the wrench head is made by casting or die forging, the arrangement of the mirror-symmetrical halves as shown in Figures 6 and 7 involves technical advantages in manufacturing.
ln a modified method according to the invention it is possible to have the handle made integral with one of khe mirror-symmetrical halves or members of the wrench head and to have it connected to the other of said halves or members by a welding or cementing operation. According to a further modification of the invention the handle may also be made in two mirror-symmetrical halves, one of which is inte-gral with one of the mirror-symmetrical halves of the wrench head and the other of which is integral with the other of the mirror-symmetrical halves of the wrench head, said unit being finally lnterconnected by a welding or cementi~
operation.
Claims
1. In an adjustable wrench structure comprising a handle and a wrench head body having a symmetry plane and a fixed jaw, said wrench also comprising a jaw which is adjustable by means of a ratchet and a worm cooperating therewith, said worm being axially displaceable to a limited extent and being lockable in operative position by means of fork legs disposed on said handle, said wrench head body and handle being individually manufactured components which are articulately connected to each other, the improvement that the wrench head body with the fixed jaw is composed of two mainly mirror symmetrical halves which have a common principal plane coincident with said symmetry plane and which are fixedly connected to each other, said halves being in their opposing contact surfaces provided with groove halves enclosing the ratchet and the shaft of the adjusting worm, respectively, thereby complementing each other, said groove halves being provided with first engagement surfaces supporting the ratchet and being perpendicular to said principal plane of the wrench, said first engagement surfaces being arranged to cooperate with corresponding second engagement surfaces arranged on the ratchet and facing the displaceable jaw, said second engagement surfaces also being perpendicular to said principal plane of the wrench, said structure thereby enabling the manufacture of said wrench head of material of structurally higher quality than the quality of the material of the handle.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7181179A JPS55164479A (en) | 1979-06-07 | 1979-06-07 | Adjustable spanner and preparation of said spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1200994A true CA1200994A (en) | 1986-02-25 |
Family
ID=13471315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000386684A Expired CA1200994A (en) | 1979-06-07 | 1981-09-25 | Adjustable wrench and method for its manufacture |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0035501A1 (en) |
| JP (1) | JPS55164479A (en) |
| AU (1) | AU544393B2 (en) |
| BR (1) | BR8008913A (en) |
| CA (1) | CA1200994A (en) |
| NO (1) | NO810396L (en) |
| WO (1) | WO1980002668A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4462252A (en) * | 1982-09-23 | 1984-07-31 | The United States Of America As Represented By The Department Of Health And Human Services | Trunk dynamometer |
| SE8901383L (en) * | 1989-04-17 | 1990-10-18 | Simon Nordgren | tool handles |
| US7607372B2 (en) * | 2007-05-16 | 2009-10-27 | Proxene Tools Co., Ltd. | Method for making a wrench |
| CN102950555B (en) * | 2011-08-18 | 2015-04-01 | 伯鑫工具股份有限公司 | Open-end wrench capable of ratcheting reciprocatingly |
| CN215659947U (en) * | 2021-08-11 | 2022-01-28 | 林旭东 | Adjustable wrench manufactured by stamping technology |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1302834A (en) * | 1918-07-09 | 1919-05-06 | John P Nikonow | Wrench. |
| US1739715A (en) * | 1928-06-14 | 1929-12-17 | George E Eckland | Wrench |
| FR731602A (en) * | 1932-02-20 | 1932-09-05 | Nut wrench, and its manufacturing process | |
| FR1011969A (en) * | 1949-05-06 | 1952-07-02 | Peugeot Freres Ets | Advanced adjustable wrench |
| SE374683B (en) * | 1973-06-28 | 1975-03-17 | S N Nordgren |
-
1979
- 1979-06-07 JP JP7181179A patent/JPS55164479A/en active Pending
-
1980
- 1980-05-21 BR BR8008913A patent/BR8008913A/en unknown
- 1980-05-21 WO PCT/SE1980/000148 patent/WO1980002668A1/en not_active Application Discontinuation
- 1980-05-21 AU AU59890/80A patent/AU544393B2/en not_active Ceased
- 1980-12-15 EP EP80901021A patent/EP0035501A1/en not_active Ceased
-
1981
- 1981-02-05 NO NO810396A patent/NO810396L/en unknown
- 1981-09-25 CA CA000386684A patent/CA1200994A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BR8008913A (en) | 1981-09-01 |
| JPS55164479A (en) | 1980-12-22 |
| WO1980002668A1 (en) | 1980-12-11 |
| EP0035501A1 (en) | 1981-09-16 |
| AU544393B2 (en) | 1985-05-23 |
| AU5989080A (en) | 1980-12-22 |
| NO810396L (en) | 1981-02-05 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |