CN1280065C - Twin head spanner having human body engineering handle - Google Patents

Twin head spanner having human body engineering handle Download PDF

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Publication number
CN1280065C
CN1280065C CN 03155502 CN03155502A CN1280065C CN 1280065 C CN1280065 C CN 1280065C CN 03155502 CN03155502 CN 03155502 CN 03155502 A CN03155502 A CN 03155502A CN 1280065 C CN1280065 C CN 1280065C
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CN
China
Prior art keywords
driving end
spanner
handle portion
handle
double head
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Expired - Lifetime
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CN 03155502
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Chinese (zh)
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CN1493433A (en
Inventor
理查·马可
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WISDOM PROPERTY IND CO Ltd
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WISDOM PROPERTY IND CO Ltd
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Priority claimed from US10/241,100 external-priority patent/US6792833B2/en
Application filed by WISDOM PROPERTY IND CO Ltd filed Critical WISDOM PROPERTY IND CO Ltd
Publication of CN1493433A publication Critical patent/CN1493433A/en
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Publication of CN1280065C publication Critical patent/CN1280065C/en
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Abstract

A double-ended wrench is described comprising a first wrench head connected to one end of an elongated handle and a second wrench head connected to the other end thereof. Each wrench head has an orifice formed for engagement with various fasteners, and each orifice has an imaginary central axis of wrench rotation. The first wrench head is positioned relative to the second wrench head whereas the axis of wrench rotation of the first wrench head is substantially perpendicular to the axis of wrench rotation of the second wrench head. The elongated handle is formed comprising a first handle portion connecting to the first wrench head, and a second handle portion connecting to the second wrench head, and a third handle portion located between the first and second handle portions. Each handle portion has a location at which there is a defined cross-sectional thickness when the wrench is viewed from an end view thereof. The third handle portion has a cross-sectional thickness substantially greater than a cross-sectional thickness of each of the first and second handle portions.

Description

The double head spanner of tool ergonomics handle
Technical field
The present invention relates to a kind of hand-held tool, particularly a kind of manual double head spanner comprises combination wrench, closed-end spanner, open-end wrench, monkey wrench and fellow, promptly a kind of double head spanner of tool ergonomics handle.
Background technology
Hand double head spanner has existed for many years, its typical construction comprise a long flat handle and at a driving end of its each end to rotate various fixator.Typical change comprises combination, twoly remains silent, two opening, activity and fellow.The flat handle that is connected in each driving end is easy near fixator each driving end.Yet a major defect of flat handle design is, the flat handle of this length only provide small size for user's application of force to rotate and the operation spanner, this small size causes the uncomfortable and tired of user, limits the torsion and the ability of use continuously simultaneously.
Recently, the someone attempts for improving the spanner that the double head spanner is formed with the distortion handle.This distortion grip structure is real to provide some advantages, and each end that is included in spanner has large tracts of land for using the application of force.Yet this kind of distortion spanner produces new problem, comprises that intensity diminishes, Zha power upper limit lower limit, not accessible in some cases fixator.Again, the twisted shape sense of touch difference of spanner handle and allow the user think that it is to damage or stubborn bad.Therefore, there is the demand that can not be ignored to improve this typical case's double head spanner.
As shown in Figure 1, be the left side elevation of the double head spanner of typical prior art.Prior art spanner 1 has handle 3 and two driving ends 5 and 11.Open spanner 5 has imagination central axis 7 at hand, it be driving end 5 spanner rotation around axis.Closed-end spanner head 11 has imagination central axis 13, it be driving end 11 spanner rotation around axis.Driving end 5 is connected in handle portion 9, and driving end 11 is connected in handle portion 15.During the operation spanner, the user holds handle portion 15, driving end 5 is changeed, to rotate various fixator around imagination central axis 7.In addition, the user holds handle portion 9, driving end 11 is changeed, to rotate various fixator around imagination central axis 13.See it from the side, handle portion 9 is relatively thin, thus driving end 5 can be in common or limited current environment easily near and the engages fixed device.Similarly, see it from the side, handle portion 15 is relatively thin, thus driving end 11 can be in common or limited current environment easily near and the engages fixed device.As a result, 9 in handle portion provides small size to allow user's application of force to rotate and operation driving end 11, and 15 in handle portion provides small size to allow user's application of force to rotate and operation driving end 5.This small size causes the user uncomfortable and tired, restriction control simultaneously, torsion and continuous use ability.
Fig. 2 is the vertical view of prior art spanner shown in Figure 1, and all component has same numeral.
With reference to figure 1 and Fig. 2, if observe spanner 1 from end view drawing, the imagination central axis 7 that then is easy to understand driving end 5 is parallel to the imagination central axis 13 of driving end 11 haply.In addition, be easy to understand the first handle portion 9 and respectively there is cross-sectional shape in the second handle portion 15, there is cross-sectional shape in the first handle portion 9 haply perpendicular to the imagination central axis 7 of first driving end 15 and the imagination central axis 13 of second driving end 11.Similarly, the second handle portion 15 has cross-sectional shape haply perpendicular to the imagination central axis 13 of second driving end 11 and the imagination central axis 7 of first driving end 15.The structure of prior art handle 3 between driving end 5 and 11 of Figure 1 and Figure 2 is constant haply.Therefore, between driving end 5 and 11, pass through, in different piece, the thickness of handle 3 is fixing and constant haply.Similarly, between driving end 5 and 11, in different piece, the cross sectional area of handle 3 is fixing and constant haply.This typical prior art spanner is easy near fixator, but only provides small size to allow user's application of force to rotate and the operation spanner, therefore causes the user uncomfortable and tired, restriction control simultaneously, torsion and continuous use ability.Therefore, modified form double head spanner is had the demand that can not be ignored, the present invention can provide that the user additionally controls, comfortable and torsion ability, but reduces tired and relevant for the injury of instrument, and does not sacrifice spanner intensity or near the easness of fixator.
Applicant's definition " cross-sectional " is the cutting relevant for handle, and cutting is haply perpendicular to its imagination longitudinal axis.Applicant's definition " thickness " is the minimum dimension at the center of inswept section.Applicant's definition " area " is the value of unit for surface (for example section of handle portion) with a square English inch.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective, a kind of double head spanner of improvement is proposed, it provides, and the user additionally controls, comfortable and torsion ability, but reduces tired and relevant for the injury of instrument, and does not sacrifice spanner intensity or near the easness of fixator.
For reaching above-mentioned purpose, the invention provides a kind of double head spanner of tool ergonomics handle, it comprises that handle, first driving end are connected in an end of handle, second driving end is connected in holding in addition of handle.Each driving end has a hole meshing various fixator, and each hole imagination central axis of having spanner to rotate.The relative position of first driving end and second driving end makes the spanner rotation of the two orthogonal.Handle has the first handle portion to be connected in first driving end, the second handle portion is connected in second driving end, the 3rd handle portion between the first handle portion and the second handle portion.Each handle portion is observed from its end at least one a cross-sectional thickness.The cross-sectional thickness of the 3rd handle portion is greater than the cross-sectional thickness of each handle portion and the cross-sectional thickness of the second handle portion.
The present invention has the following advantages:
A significant advantage of the present invention is that it has two driving ends.
Another significant advantage of the present invention is that it is easy near fixator.
Another significant advantage of the present invention is that it provides that the user additionally controls, comfortable and torsion ability, but reduces tired and may injure relevant for instrument.
Another significant advantage of the present invention is that it has intensity and durability.
Another significant advantage of the present invention is that professional user is easy to accept it.
Another significant advantage of the present invention is cost efficiency and the commercial viability that it has manufacturing.
Description of drawings
Fig. 1 is the front view of the double head spanner of typical prior art;
Fig. 2 is the vertical view of prior art spanner shown in Figure 1;
Fig. 3 is the front view of double head spanner of the present invention;
Fig. 4 is the vertical view of spanner shown in Figure 3;
Fig. 5 is the end-view of spanner shown in Figure 4;
Fig. 6 is the cross-sectional end-view of the first handle portion of spanner shown in Figure 3;
Fig. 7 is the cross-sectional end-view of the second handle portion of spanner shown in Figure 3;
Fig. 8 is the cross-sectional end-view of the 3rd handle portion of spanner shown in Figure 3;
Fig. 9 is the stereogram of another kind of double head spanner of the present invention;
Figure 10 is the front view of another kind of double head spanner of the present invention;
Figure 11 is the vertical view of spanner shown in Figure 10.
Symbol description among the figure
1 spanner, 3 handles, 5 driving ends
7 imagination central axis, 9 handle portions, 11 driving ends
13 imagination central axis, 15 handle portions, 21 double head spanners
23 handles, 25 first driving ends, 27 second driving ends
29 imagination central axis, 30 holes, 31 imagination central axis
32 holes, 35 second handle portions of 33 first handle portions
37 the 3rd handle portions, 71 double head spanners, 73 handles
75 first driving ends, 77 second driving ends, 79 imagination central axis
81 imagination central axis, 82 holes, 80 holes
The 3rd handle portion of 85 second handle portions 87 of 83 first handle portions
The cross-sectional thickness of the cross-sectional thickness D3 of the cross-sectional thickness D2 of D1
The specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with drawings and Examples.
With reference to the accompanying drawings, its objective is and present some preferred embodiments of the present invention and unrestricted the present invention.
With reference to figure 3 and 4, show the double head spanner of tool ergonomics handle of the present invention with left side elevation and vertical view.Double head spanner 21 comprises that handle 23, first driving end 25 are connected in an end of handle 23, second driving end 27 is connected in holding in addition of handle 23.Driving end 25 is porose 30, driving end 27 porose 32.Each hole is the various fixator of engagement.There is the imagination central axis 29 of spanner rotation in hole 30, and there is the imagination central axis 31 of spanner rotation in hole 32.Because of the relative position of first driving end 25 and second driving end 27, the imagination central axis 29 of first driving end 25 is perpendicular to the imagination central axis 31 (Fig. 5 shows the clearest) of second driving end 27.Handle 23 has the first handle portion 33 to be connected in first driving end 25, the second handle portion 35 is connected in second driving end 27, the 3rd handle portion 37 between the first handle portion 33 and the second handle portion 35. Driving end 25 and 27 all is fixed in spanner 21.In some preferable enforcements of the present invention, can there be one or two driving end to be fixed in the handle of spanner.In other preferable enforcement of the present invention, can there be one or two driving end to articulate the handle of spanner.When operation spanner 21, the user holds handle portion 35, makes driving end 25 rotate various fixator around imagination central axis 29.Can see in Fig. 3 that the area that handle portion 35 provides allows user's application of force that driving end 25 is rotated around imagination central axis 29 much larger than the area of prior art shown in Figure 1.In addition, the user holds handle portion 33, makes driving end 27 rotate various fixator around imagination central axis 31.Can see in Fig. 4 that the area that handle portion 33 provides allows user's application of force that driving end 27 is rotated around imagination central axis 31 much larger than the area of prior art shown in Figure 1.
Fig. 5 is the end view drawing of spanner of the present invention shown in Figure 4.In this figure, can understand easily, because of the relative position of first driving end 25 and second driving end 27, the imagination central axis 29 of first driving end 25 is perpendicular to the imagination central axis 31 of second driving end 27.
Fig. 6 is the cross-sectional end view drawing of the first handle portion 33 of spanner 21 shown in Figure 3.Can see that in this end view drawing there is cross-sectional shape in the first handle portion 33, and cross-sectional shape is haply perpendicular to the imagination central axis 29 of first driving end 25, and is parallel to the imagination central axis 31 of second driving end 27 haply.There is cross-sectional thickness D1 in the first handle portion 33 in this cross-sectional figure.
Fig. 7 is the cross-sectional end view drawing of the second handle portion 35 of spanner 21 shown in Figure 3.Can see that in this end view drawing there is cross-sectional shape in the second handle portion 35, and cross-sectional shape is haply perpendicular to the imagination central axis 31 of second driving end 27, and is parallel to the imagination central axis 29 of first driving end 25 haply.There is cross-sectional thickness D2 in the second handle portion 35 in this cross-sectional figure.
Fig. 8 shows the cross-sectional end view drawing of the 3rd handle portion 37 of spanner shown in Figure 3 21.The 3rd handle portion 37 also has cross-sectional thickness D3 in this cross-sectional figure.
With reference to figure 6~8, the thickness D3 of the 3rd handle portion 37 is greater than the cross-sectional thickness D1 of the first handle portion 33 and the cross-sectional thickness D2 of the second handle portion 35.Similarly, the cross sectional area of the 3rd handle portion 37 is greater than the cross sectional area of the first handle portion 33 and the cross sectional area of the second handle portion 35.The applicant defines " cross-sectional " again and is the cutting relevant for handle, and cutting is haply perpendicular to its imagination longitudinal axis.Applicant's definition " thickness " is the minimum dimension at the center of inswept section.Applicant's definition " area " is the value of unit for surface (for example section of handle portion) with a square English inch.All of spanner of the present invention implement all to have the thickness of strengthening stage casing or 37, the three handle portions 37 of the 3rd handle portion and cross sectional area arbitrary cross-sectional thickness and the cross sectional area greater than other handle portion (the first handle portion 33 and the second handle portion 35).The cross-sectional thickness of each handle portion and cross sectional area all may prolong its vertical variation, yet each handle portion must make above-mentioned structural relation take place at least one position.Structure shown in Fig. 3~8 be provided at typical prior art double head spanner above effectively and the advantage that can not be ignored.These improve part and comprise increase spanner intensity and durability, increase user's control, comfortable and torsion ability, and minimizing user fatigue reaches may injure relevant for instrument.
Fig. 9 is the left side elevation of another kind of double head spanner of the present invention.
Figure 10 and Figure 11 are respectively the left side elevation and the vertical views of second kind of double head spanner of the present invention.Double head spanner 71 comprises that handle 73, first driving end 75 are connected in an end of handle 73, second driving end 77 is connected in holding in addition of handle 73.Driving end 75 is porose 80, driving end 77 porose 82.Each hole is the various fixator of engagement.There is the imagination central axis 79 of spanner rotation in hole 80, and there is the imagination central axis 81 of spanner rotation in hole 82.Because of the relative position of first driving end 75 and second driving end 77, the imagination central axis 79 of first driving end 75 is perpendicular to the imagination central axis 81 of second driving end 77.Handle 73 has the first handle portion 83 to be connected in first driving end 75, the second handle portion 85 is connected in second driving end 77, the 3rd handle portion 87 between the first handle portion 83 and the second handle portion 85.Driving end 75 and 77 all is fixed in spanner 71.In some preferable enforcements of the present invention, can there be one or two driving end to be fixed in the handle of spanner.In other preferable enforcement of the present invention, can there be one or two driving end to articulate the handle of spanner.When operation spanner 71, the user holds handle portion 85, makes driving end 75 rotate various fixator around imagination central axis 79.Can see in Figure 10 that the area that handle portion 85 provides allows user's application of force that driving end 75 is rotated around imagination central axis 79 much larger than the area of prior art shown in Figure 1.In addition, the user holds handle portion 83, makes driving end 77 rotate various fixator around imagination central axis 81.Can see in Figure 11 that the area that handle portion 83 provides allows user's application of force that driving end 77 is rotated around imagination central axis 81 much larger than the area of prior art shown in Figure 1.Double head spanner of the present invention has two identical or different driving ends.Each driving end may be fixed in or be articulated in the handle portion of spanner.Other embodiments of the invention may comprise that sour jujube closes mechanism in one or two driving end, to quicken operation.
Considering when of the present invention that " simply " reaches " apparent and easily know " and should not be confused or be considered as identical.Therefore, must be by above-mentioned many relevant purposes, comprise being easy to consider near fixator, comfortable, torsion, intensity, durable and ergonomics, weigh novelty of the present invention and creativeness.

Claims (39)

1. double head spanner, it is characterized in that, comprise handle, first driving end is fixed in an end of this handle, second driving end is fixed in the other end of this handle, each driving end has a hole to mesh various fixator, the imagination central axis that each hole has spanner to rotate, the relative position of this first driving end and this second driving end makes the spanner rotation of the spanner rotation of this first driving end perpendicular to second driving end, this handle comprises that the first handle portion is connected in this first driving end, the second handle portion is connected in this second driving end, the 3rd handle portion is between this first handle portion and this second handle portion, each handle portion is observed from its end at least one a cross-sectional thickness, and the cross-sectional thickness of the 3rd handle portion is greater than the cross-sectional thickness of this first handle portion and the cross-sectional thickness of the second handle portion.
2. double head spanner as claimed in claim 1, wherein the cross-sectional shape of this first handle portion is perpendicular to the spanner rotation of this first driving end and be parallel to the spanner rotation of this second driving end, and the cross-sectional shape of this second handle portion is perpendicular to the spanner rotation of this second driving end and be parallel to the spanner rotation of this first driving end.
3. double head spanner as claimed in claim 1 or 2, wherein this first driving end differs from this second driving end.
4. double head spanner as claimed in claim 1 or 2, wherein this first driving end is identical with this second driving end.
5. double head spanner as claimed in claim 1 or 2, wherein at least one comprises that sour jujube closes mechanism in this two driving end.
6. double head spanner as claimed in claim 2, wherein at least one is articulated in handle portion in this two driving end.
7. double head spanner, it is characterized in that, comprise handle, first driving end is connected in an end of this handle, second driving end is connected in the other end of this handle, each driving end has a hole to mesh various fixator, the imagination central axis that each hole has spanner to rotate, the relative position of this first driving end and this second driving end makes the spanner rotation of the spanner rotation of this first driving end perpendicular to second driving end, this handle comprises that the first handle portion is connected in this first driving end, the second handle portion is connected in this second driving end, the 3rd handle portion is between this first handle portion and this second handle portion, each handle portion is observed from its end at least one a cross sectional area, and the cross sectional area of the 3rd handle portion is greater than the cross sectional area of this first handle portion and the cross sectional area of the second handle portion.
8. double head spanner as claimed in claim 7, wherein the cross-sectional shape of this first handle portion is perpendicular to the spanner rotation of this first driving end and be parallel to the spanner rotation of this second driving end, and the cross-sectional shape of this second handle portion is perpendicular to the spanner rotation of this second driving end and be parallel to the spanner rotation of this first driving end.
9. double head spanner as claimed in claim 7, wherein this first driving end differs from this second driving end.
10. double head spanner as claimed in claim 7, wherein this first driving end is identical with this second driving end.
11. double head spanner as claimed in claim 7, wherein at least one comprises that sour jujube closes mechanism in this two driving end.
12. double head spanner as claimed in claim 7, wherein at least one is articulated in handle portion in this two driving end.
13. double head spanner as claimed in claim 11, wherein this first driving end differs from this second driving end.
14. double head spanner as claimed in claim 11, wherein this first driving end is identical with this second driving end.
15. double head spanner, it is characterized in that, comprise handle, first driving end is connected in an end of this handle, second driving end is connected in the other end of this handle, each driving end has a hole to mesh various fixator, the imagination central axis that each hole has spanner to rotate, the relative position of this first driving end and this second driving end makes the spanner rotation of the spanner rotation of this first driving end perpendicular to second driving end, this handle comprises that the first handle portion is connected in this first driving end, the second handle portion is connected in this second driving end, the cross-sectional shape of this first handle portion is perpendicular to the spanner rotation of this first driving end and be parallel to the spanner rotation of this second driving end, the cross-sectional shape of this second handle portion is perpendicular to the spanner rotation of this second driving end and be parallel to the spanner rotation of this first driving end, and the side of this handle is gradually thin to this first driving end, end face is gradually thin to this second driving end.
16. double head spanner as claimed in claim 15, wherein this first driving end differs from this second driving end.
17. double head spanner as claimed in claim 15, wherein this first driving end is identical with this second driving end.
18. double head spanner as claimed in claim 15, wherein at least one comprises that sour jujube closes mechanism in this two driving end.
19. double head spanner as claimed in claim 15, wherein at least one is articulated in handle portion in this two driving end.
20. double head spanner as claimed in claim 19, wherein this first driving end differs from this second driving end.
21. double head spanner as claimed in claim 19, wherein this first driving end is identical with this second driving end.
22. double head spanner as claimed in claim 19, wherein at least one comprises that a sour jujube closes mechanism in this two driving end.
23. double head spanner, it is characterized in that, comprise handle, first driving end is connected in an end of this handle, second driving end is connected in the other end of this handle, each driving end has a hole to mesh various fixator, the imagination central axis that each hole has spanner to rotate, the relative position of this first driving end and this second driving end makes the spanner rotation of the spanner rotation of this first driving end perpendicular to second driving end, this handle is non-warping, and the first handle portion that comprises is connected in this first driving end, the second handle portion is connected in this second driving end, and the side of the handle that this is non-warping is gradually thin to this first driving end, end face is gradually thin to this second driving end.
24. double head spanner as claimed in claim 23, wherein the cross-sectional shape of this first handle portion is perpendicular to the cross-sectional shape of this second handle portion.
25. as claim 23 or 24 described double head spanners, wherein this first driving end differs from this second driving end.
26. as claim 23 or 24 described double head spanners, wherein this first driving end is identical with this second driving end.
27. as claim 23 or 24 described double head spanners, wherein at least one comprises that sour jujube closes mechanism in this two driving end.
28. as claim 23 or 24 described double head spanners, wherein at least one is articulated in handle portion in this two driving end.
29. double head spanner as claimed in claim 24, wherein this gradually thin side is also identical continuously with this two handles portion, and this gradually thin end face is also identical continuously with this two handles portion.
30. double head spanner as claimed in claim 24, wherein this first driving end differs from this second driving end.
31. double head spanner as claimed in claim 24, wherein this first driving end is identical with this second driving end.
32. double head spanner as claimed in claim 24, wherein at least one comprises that a sour jujube closes mechanism in this two driving end.
33. double head spanner as claimed in claim 24, wherein at least one is articulated in handle portion in this two driving end.
34. double head spanner, it is characterized in that, comprise handle, first driving end is connected in an end of this handle, second driving end is connected in the other end of this handle, each driving end has a hole to mesh various fixator, the imagination central axis that each hole has spanner to rotate, the relative position of this first driving end and this second driving end makes the spanner rotation of the spanner rotation of this first driving end perpendicular to second driving end, this handle is non-warping, and the first handle portion that comprises is connected in this first driving end, the second handle portion is connected in this second driving end, the cross-sectional shape of this first handle portion is perpendicular to the spanner rotation of this first driving end and be parallel to the spanner rotation of this second driving end, the cross-sectional shape of this second handle portion is perpendicular to the spanner rotation of this second driving end and be parallel to the spanner rotation of this first driving end, and the side of the handle that this is non-warping is gradually thin to this first driving end, end face is gradually thin to this second driving end.
35. double head spanner as claimed in claim 34, wherein this gradually thin side is also identical continuously with this two handles portion, and this gradually thin end face is also identical continuously with this two handles portion.
36. as claim 34 or 35 described double head spanners, wherein this first driving end differs from this second driving end.
37. as claim 34 or 35 described double head spanners, wherein this first driving end is identical with this second driving end.
38. as claim 34 or 35 described double head spanners, wherein at least one comprises that sour jujube closes mechanism in this two driving end.
39. as claim 34 or 35 described double head spanners, wherein at least one is articulated in handle portion in this two driving end.
CN 03155502 2002-09-11 2003-08-27 Twin head spanner having human body engineering handle Expired - Lifetime CN1280065C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/241,100 2002-09-11
US10/241,100 US6792833B2 (en) 2002-08-22 2002-09-11 Double-ended wrench with ergonomic handle portions

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Publication Number Publication Date
CN1493433A CN1493433A (en) 2004-05-05
CN1280065C true CN1280065C (en) 2006-10-18

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TW (1) TW568816B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310372A (en) * 2010-07-08 2012-01-11 鑫爵实业股份有限公司 Wrench structure

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101486232B (en) * 2009-01-22 2011-09-07 四川大学 Oriented cutting method for preparing infrared non-linear optics element from yellow copper positive uni-axial crystal
US9079297B2 (en) * 2011-04-15 2015-07-14 Apex Brands, Inc. Flex-head wrench

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102310372A (en) * 2010-07-08 2012-01-11 鑫爵实业股份有限公司 Wrench structure

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TW200404027A (en) 2004-03-16
CN1493433A (en) 2004-05-05
TW568816B (en) 2004-01-01

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