CN102765068A - Dual hex pattern open end wrench - Google Patents
Dual hex pattern open end wrench Download PDFInfo
- Publication number
- CN102765068A CN102765068A CN2012101390123A CN201210139012A CN102765068A CN 102765068 A CN102765068 A CN 102765068A CN 2012101390123 A CN2012101390123 A CN 2012101390123A CN 201210139012 A CN201210139012 A CN 201210139012A CN 102765068 A CN102765068 A CN 102765068A
- Authority
- CN
- China
- Prior art keywords
- size
- hexagon
- spanner
- hex nut
- nut
- 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.)
- Pending
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
An open ended wrench of the invention incorporates both English (inch) and metric sizes. Two conventional single-size wrenches are replaced by a dual-size hex pattern wrench, reducing the number of wrenches likely to be needed to do a job. One hex pattern is sized to match preferably a metric component and the other hex pattern is sized to match preferably an English component. The two different sized hex patterns are preferably offset by 30 degrees.
Description
Technical field
The present invention is mainly used in hand tools, particularly opening or double offset ring spanner.
Background technology
When using the convention spanner to pull hex nut, opening must mesh with at least two opposite faces of nut.The double offset ring spanner 10 of convention shown in Fig. 1 has a hand arm 13 and two open slots 12 and 14. Open slot 12 and 14 size are inequality usually.Open slot 12 contacts and forces in 2/3 surface of about hex nut outer ring with 14.
Automobile is assembled by the parts of country variant manufacturing often.Some country adopts made in Great Britain, and some adopts metric measure bolt size.Many machines are assembled by the nuts and bolt of the metric system, size made in Great Britain jointly.Conventional English system or metric system manual wrench; Can only be applicable to the nut or the bolt of specific dimensions; For satisfying in the different operating requirement to the metric system, parts made in Great Britain, mechanic, machinist, electrician and consumer have to buy in the multiple type of single-end spanner what set of tools.
The U.S. the 5th, 048, what No. 379 patents were showed is the cubic transmission both-end sleeve that includes jackshaft, is connected and can uses with arbitrary end sleeve with traditional connecting rod.But this patent need be through moving, rotate and change the conversion that sleeve is realized metric size made in Great Britain.In addition, this patent also need be added connecting rod or special spanner when practical operation.
Except needs had the spanner of many sizes, machinist and other stakeholders often were difficult to confirm accurate dimensions when installation or removal nut or bolt, only inferred the spanner size that needs use through estimating.In addition, when servicing a car, often be difficult to judge that a bolt is the English system or the metric system.Generally speaking, the machinist will attempt the spanner of all size size before finding to be fit to the spanner of bolt or nut size.They attempt could confirming several times the amount system and concrete size of bolt possibly.If size that they have selected wrong, size is little, and spanner unmatches certainly; If but select more a little, spanner just uses relatively pine.If but a certain material hard inadequately (normally nut), not matching of so this size can cause the transfer on summit, can increase the damage probability of (usually) nut.
Description of drawings
Fig. 1 is a stereogram, shows the open-end wrench of prior art;
Fig. 2 is a stereogram, shows two size hexagonal open-end wrench of the present invention's embodiment;
Fig. 3 is the side view of shown in Figure 2 pair of size hexagonal open-end wrench, has described the characteristic of two kinds of inside and outside hexagon lassos of different size;
Fig. 4 is the another side view of shown in Figure 2 pair of size hexagonal open-end wrench, has described the size of the two kinds of specification hexagon lassos that vary in size;
List shown in Figure 5, A row imperial sizing are the fractional values made in Great Britain of outer hexagon lasso opposite side distance, and the D row are to be the probable value of hexagon lasso opposite side distance in the unit with the metric system, and hurdle J is meant that the inside and outside hexagon lasso of whether recommending this size is combined as two size sleeves;
List shown in Figure 6, the A row refer to the metric size of outer hexagon lasso opposite side distance, and row D is possible of an interior hexagon lasso opposite side distance value made in Great Britain, and the J row are meant that the inside and outside hexagon lasso of whether recommending this size is combined as two size sleeves;
List shown in Figure 7 is similar with Fig. 5, but has comprised the minimum and maximum value of interior hexagon lasso opposite side distance made in Great Britain;
List shown in Figure 8 is similar with Fig. 6, but has comprised the minimum and maximum size of hexagon lasso opposite side distance in the metric system;
Fig. 9 is an end-view, shows two size hexagonal open-end wrench of the embodiment of the invention, its outer hexagon lasso opposite side distance H1=11/16 inch, and interior hexagon lasso opposite side distance H2=17mm combines.When being suitable for the spanner of prior art, the spanner of 17mm is complementary with 11/16 inch by mistake, and 11/16 inch of the area of contact of spanner and bolt is bigger than normal;
Figure 10 is a stereogram, the theoretical minimum value of hexagon lasso opposite side distance in showing.
Summary of the invention
The present invention provides a kind of spanner, can be suitable for two kinds of vary in size specifications of nuts and bolts simultaneously, thereby reduces the required spanner number of selecting for use when the nuts and bolt of assembly and disassembly various sizes.The spanner of configuration can shorten nut or bolt according to specific standard according to the present invention, confirms the required time of just size spanner.The present invention realizes above-mentioned functions through combining to have the lasso of trickle gap different size.
Consider standard english size spanner separately, because its spacing is bigger or different, the hexagon lasso is lower less than the chance of hexagon lasso tube outside this size within the inferior small size.The spacing of the spanner of standard metric size is bigger equally.Yet if imperial sizing and metric size are compared side by side, two kinds of some sizes in measuring all only have trickle gap, and this is to mention the reason that causes the preferred dimension confusion in the discussion of background introduction.Teaching of the present invention utilize the advantage of bihexagon wrench, promptly they can be suitable for two kinds of nuts that size is slightly different simultaneously, one of them hexagon lasso is in order to the part of coupling imperial sizing, another hexagon lasso then is used to mate the part of metric size.The design of the hexagon lasso of two kinds of different sizes lets the user only need a spanner just can be suitable for the hex nut of two kinds of specifications.
Preferred embodiments of the present invention is included in the spanner perpendicular to axial plane inward turning turn nut and bolt; This spanner comprises the jaw with central shaft; The vertical plane that has around the axis by axis intersects the cylindric opening of part that forms; This opening one end is along the first hexagon side of large-size, and the other end is along second hexagonal side of reduced size, and this second hexagon is offset from the axle that first hexagon centers on.
Advantage of the present invention is that open-end wrench can realize reducing user number of times that changes instrument and the dual-use function of accelerating its maintenance speed.
The practical implementation method
Shown in Figure 2 is the stereogram of one of embodiment of the invention open-end wrench 20.Spanner 20 comprises hand arm 24, although can select arbitrary shape for use, tends to select for use elliptic cross-section basically.Hand arm 24 left ends 25 are nut opening 26, and hand arm 24 shifts moment of torsion to outer hexagon lasso 31 and interior hexagon lasso 32.The muff joint of other kinds or shape also can be suitable equally.
As shown in Figure 3, nut opening 26 is round rotating shaft X, and with central axes, the inner surface 32 that comprises 18 side F be the boundary.Can alternately form between the adjacent side on the occasion of angle (clockwise 60 °) and negative value angle (counterclockwise 30 °).Each is the summit with V on the occasion of the angle, forms a bag zone (pocket) P with adjacent surface.The set (Pouter) in first group of bag zone comprises each other the bag zone on the border (being connected by dash between each bag zone) of first hexagon pattern of definition H1.The set (Pinner) in second group of bag zone has then defined the border (being connected by dotted line between each bag) of second hexagon pattern H2.In the single size spanner of convention, the equal and opposite in direction of two hexagon patterns forms 30 ° of angles along the X axle; According to the spanner of the present invention's design, opposite side distance H1, the H2 of its hexagon pattern are unequal, and go for the nut of different size.
Shown in Figure 4 is the dimensional drawing of one of embodiment of the invention spanner 20: it has bigger outer hexagon lasso opposite side distance (HS
L) and less interior hexagon lasso opposite side distance (HSs).The preferred plan of inside and outside hexagon lasso is to intersect angle
along the X axle
Big hexagon pattern
Big hexagon opposite side distance=HS
L
Big hexagon radius=HR
L
Big hexagon diagonal angle line length=HD
L
Big hexagon summit spacing=PHD
L(not marking among the figure)
Little hexagon pattern
Little hexagon opposite side distance=HSs
Little hexagon radius=HRs
Little hexagon diagonal angle line length=HDs
Little hexagon summit spacing=PHDs
About suitable hex nut standard size, outer hexagon lasso opposite side distance HSL and interior hexagon lasso opposite side distance HS
SMore dimension informations are following:
The hexagon radius be hexagon opposite side distance half the (for example: diameter) face-to-face of leaving promptly: HR=1/2*HS
Each hexagon lasso summit spacing (PHDs) is that this hexagon diagonal distance deducts another hexagonal radius:
To bigger outer hexagon pattern H1:
HD
L＝HR
L/cos?30°
PHD
L＝HD
L-HRs
To less interior hexagon pattern H2:
HDs＝HRs/cos?30°
PHDs＝HDs-HR
L
Surface contact (Surface Contact) length of size hexagon size is respectively:
SC
L＝PHD
L/sin?30°
SCs＝PHDs/sin?30°
According to the present invention, above-mentioned size can be used for confirming how to make up the spanner of different size, constitutes the spanner of all size.It is enough big that the matching surface F of two die nuts and nut wants, and could when not damage the bolt angle, entangle and rotate hex nut.The opposite side distance HSs of interior hexagon lasso is dwindled, and its hexagon lasso summit spacing PHDs also can shorten, and the identical length of spanner and nut and the area that coincide also can correspondingly reduce.(opposite is, if the opposite side distance HSs of hexagon lasso in reducing, the summit spacing PHDL of outer hexagon lasso then can increase, and also can correspondingly enlarge with the identical area of nut, is illustrated in fig. 9 shown below.) the two die nuts of the single size of standard of interior hexagon lasso H2, the identical area desirable with unidimensional outer hexagon lasso will reach 80% at least.In other words, preferably be no more than 20% like Fig. 5,6, the I columns value shown in 7 and 8.The actual alternative that surpasses the optimal case of minimum dimension of interior hexagon lasso opposite side distance is like Fig. 5,6, the F columns value shown in 7 and 8, and promptly interior hexagon opposite side distance is not less than 97% with the ratio of outer hexagon opposite side distance.
The metric size of the interior hexagon opposite side distance of the imperial sizing of the outer hexagon opposite side distance of A row shown in Figure 5 and D row; Be used to be combined into two size spanners; Whether whether the J row chosen then feasible to mating; For example, among Fig. 5 eighth row coupling be 11/16 inch spanner with two similar sizes of 17mm: 11/16 inch (A columns value) equals 0.688 inch (B columns value), and 17mm (D columns value) equals 0.669 inch (E columns value); So 11/16 inch is bigger, become outer hexagon opposite side distance HSL (A columns value), 17mm becomes interior hexagon opposite side distance (D columns value).Apply mechanically top formula; Interior hexagon opposite side distance is 97.4% with the ratio of outer hexagon opposite side distance; Satisfy to be not less than 97% preferred value, the analysis of instance according to the present invention, choosing also of eighth row J row shows: 11/16 inch of eighth row can be used for being matched to two size spanners with 17mm.
The imperial sizing of the interior hexagon opposite side distance of the metric size of the outer hexagon opposite side distance of A row shown in Figure 6 and D row; Be used to be combined into two size spanners; Whether whether the J row chosen then feasible to mating; For example, that the 7th row coupling is outer hexagon lasso H1 opposite side distance HSL 13mm (A columns value) among Fig. 6, interior hexagon lasso H2 opposite side distance HS
S0.5 inch (E columns value), and 13mm equals 0.512 inch (B columns value), and is only big by 0.012 than 0.5.First group of hexagon lasso is applicable to the screw bolt and nut of 13mm specification, and second group of hexagon lasso is applicable to the screw bolt and nut of 0.5 inch specification.
In addition, shown in the tabulation of Fig. 7 and 8, the hexagon lasso of two close English systems or metric size also can be combined into two size spanners.The ratio value that does not have the combination of two imperial sizings or two metric sizes can satisfy the F row among Fig. 7 and 8 be higher than 97% or the ratio value of P row be lower than 20%.But 11/16 inch spanner difference with 11/8 inch is little, so two English system is higher with the practicality that two metric systems are combined in the large scale spanner.
As stated, if the opposite side distance HSs of hexagon pattern in reducing, (point to hex distance PHDL) then can increase in surpassing the first summit spacing HRL summit spacing of outer hexagon pattern, also can correspondingly enlarge with the contact area (SCL) of bolt.Therefore, the opposite side distance of interior hexagon H2 is more little, and the rotatory force that the outer hexagon H1 of spanner is produced is big more.As shown in Figure 9, even falsely drop the spanner that is suitable for opposite side distance 17mm specification nut, the contact area SC (SurfaceContact) that spanner shown in Fig. 5 eighth row increases is apparently higher than the general single size spanner that is suitable for 11/16 inch specification nut.When inside and outside hexagon lasso when the X axle intersects angle
; The rotatory force of spanner reaches maximum, but other angles are feasible equally.
If bolt, nut and spanner are all processed by hard material; The proportion that hexagon summit pitch difference accounts for normal pitch preferably be not higher than 20% or when outer hexagon lasso opposite side distance HSL maybe be greater than among Fig. 7 the 7th; 9; In the 8th to 18 row during matching value of listed pair of size die nut, the ratio that interior hexagon opposite side distance accounts for outer hexagon opposite side distance is not less than 97% among 10 row and Fig. 8.Shown in figure 10; The theoretical maximum difference of inside and outside hexagon size or the theoretical minimum dimension of interior hexagon lasso be when in hexagonal diagonal angle line length HDs outside equaling during hexagonal radius HRL, outer hexagonal radius HRL equals outer hexagon diagonal angle line length and multiply by 60 ° of sine.Only when inside and outside hexagon lasso when the X axle intersects angle
, (HDL) * (86.6%) just can obtain theoretical extreme.
According to instance proposed by the invention, in practical field, those of ordinary skills can do modify according to the invention thinking.For example, if select inside and outside square sleeve for use, according to the square spanner of the present invention's design equally applicable to square screw bolt and nut.Therefore, following claim contains all and meets this theory to what invention was made, belongs to the modification of invention scope and spirit.
Claims (10)
1. a spanner rotates hex bolts and nut with what, and this spanner comprises:
Jaw is applicable to the first size hex nut, and when a different time, is applicable to the second size hex nut of difference.
2. spanner as claimed in claim 1, wherein said first size hex nut are measured with imperial measure, and said second size hex nut system is measured with metric system tolerance.
3. spanner as claimed in claim 1, wherein said first size hex nut and the said second size hex nut are measured with imperial measure and are had a different size.
4. spanner as claimed in claim 1, wherein said first size hex nut and the said second size hex nut are with the quilt measurement of metric system tolerance and have different size.
5. a spanner is used to rotate hex nut and bolt, and this spanner comprises:
Jaw with central shaft, and
One cylindric opening; Be positioned at around this axis; A this cylindric opening and a vertical Plane intersects that has with axis; This cylindric opening has a plurality of sides around first hexagon along large-size, and other sides around second hexagon of reduced size, and wherein this second hexagon is offset from the axle that first hexagon centers on.
6. spanner as claimed in claim 5, wherein said second hexagon becomes 30 degree angles with said first hexagon along said axle offset.
7. spanner as claimed in claim 6, the opposite of wherein said first hexagon distance be HSL, and the opposite of said second hexagon is apart from being HSs, HSs is greater than HS
LMultiply by 60 ° of sine.
8. spanner as claimed in claim 7, wherein said distance H Ss is at least distance H S
L97%.
9. spanner as claimed in claim 7, wherein said second hexagon is compared with one of the HSs with same size hexagon, and the decrement of its summit spacing (Point-to-HexPHDs) is less than 20% in a single size spanner.
10. Wrench comprises:
First square aperture with metric size, and
Second square aperture with second imperial sizing, said first square aperture is offset from this second square aperture rotatably.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US13/102,025 | 2011-05-05 | ||
| US13/102,025 US20110290085A1 (en) | 2010-05-28 | 2011-05-05 | Dual Hex Pattern Open End Wrench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102765068A true CN102765068A (en) | 2012-11-07 |
Family
ID=47092753
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220201580 Expired - Fee Related CN202943565U (en) | 2011-05-05 | 2012-05-07 | Wrench |
| CN2012101390123A Pending CN102765068A (en) | 2011-05-05 | 2012-05-07 | Dual hex pattern open end wrench |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220201580 Expired - Fee Related CN202943565U (en) | 2011-05-05 | 2012-05-07 | Wrench |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN202943565U (en) |
| TW (1) | TW201302390A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756300A (en) * | 2013-11-15 | 2018-03-06 | 施耐宝公司 | Sleeve driving improves |
| US11806843B2 (en) | 2013-11-15 | 2023-11-07 | Snap-On Incorporated | Socket drive improvement |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201302390A (en) * | 2011-05-05 | 2013-01-16 | Perry James Richardson | Dual hex pattern open end wrench |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877327A (en) * | 1973-01-02 | 1975-04-15 | Harold Gustave Erm | Socket wrenches |
| US4100824A (en) * | 1975-03-03 | 1978-07-18 | Surelab Superior Research Laboratories, Inc. | Rotary tool for driving English and metric threaded members |
| US5219392A (en) * | 1985-12-18 | 1993-06-15 | Josef Ruzicka | Rotary wrenching tool |
| CN201346755Y (en) * | 2008-12-26 | 2009-11-18 | 景祥凯工业股份有限公司 | Spanner |
| CN201455854U (en) * | 2009-07-03 | 2010-05-12 | 上海田野工具(集团)有限公司 | Skid-proof double-function wrench |
| CN101870096A (en) * | 2009-04-24 | 2010-10-27 | Ibt控股有限责任公司 | Wrench with bolt engaging portion and roller |
| CN202943565U (en) * | 2011-05-05 | 2013-05-22 | 佩里·詹姆斯·理查森 | Wrench |
-
2012
- 2012-05-04 TW TW101116002A patent/TW201302390A/en unknown
- 2012-05-07 CN CN 201220201580 patent/CN202943565U/en not_active Expired - Fee Related
- 2012-05-07 CN CN2012101390123A patent/CN102765068A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3877327A (en) * | 1973-01-02 | 1975-04-15 | Harold Gustave Erm | Socket wrenches |
| US4100824A (en) * | 1975-03-03 | 1978-07-18 | Surelab Superior Research Laboratories, Inc. | Rotary tool for driving English and metric threaded members |
| US5219392A (en) * | 1985-12-18 | 1993-06-15 | Josef Ruzicka | Rotary wrenching tool |
| CN201346755Y (en) * | 2008-12-26 | 2009-11-18 | 景祥凯工业股份有限公司 | Spanner |
| CN101870096A (en) * | 2009-04-24 | 2010-10-27 | Ibt控股有限责任公司 | Wrench with bolt engaging portion and roller |
| CN201455854U (en) * | 2009-07-03 | 2010-05-12 | 上海田野工具(集团)有限公司 | Skid-proof double-function wrench |
| CN202943565U (en) * | 2011-05-05 | 2013-05-22 | 佩里·詹姆斯·理查森 | Wrench |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107756300A (en) * | 2013-11-15 | 2018-03-06 | 施耐宝公司 | Sleeve driving improves |
| US10442060B2 (en) | 2013-11-15 | 2019-10-15 | Snap-On Incorporated | Socket drive improvement |
| US11173580B2 (en) | 2013-11-15 | 2021-11-16 | Snap-On Incorporated | Socket drive improvement |
| US11806843B2 (en) | 2013-11-15 | 2023-11-07 | Snap-On Incorporated | Socket drive improvement |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201302390A (en) | 2013-01-16 |
| CN202943565U (en) | 2013-05-22 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121107 |