CN2057881U - Open rotary spanner - Google Patents
Open rotary spanner Download PDFInfo
- Publication number
- CN2057881U CN2057881U CN 89213238 CN89213238U CN2057881U CN 2057881 U CN2057881 U CN 2057881U CN 89213238 CN89213238 CN 89213238 CN 89213238 U CN89213238 U CN 89213238U CN 2057881 U CN2057881 U CN 2057881U
- Authority
- CN
- China
- Prior art keywords
- spanner
- circular groove
- securing member
- lip
- open rotary
- 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.)
- Withdrawn
Links
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a novel open rotary spanner, which belongs to the technical field of manual tools. Two lips of the spanner are flat; the working faces of the two lips are parallel and abut on the spanner mouth; the rear part of the two lips has a circular slot (3) which can freely rotate; the total functions of the original spanner are kept. The open rotary spanner is flexible and convenient when used; after twisted once, the spanner is unnecessary to be retreated from. The open rotary spanner can also contain fasteners with a little large error, and can replace all ordinary solid spanners.
Description
A kind of novel rotary spanner that belongs to the hand-operated tools technical field, this spanner is flexible in use, as long as hold spanner to clockwise direction one twisting, just can screw securing members such as bolt or nut,, just can make in the securing member precession spanner circular groove as towards counterclockwise back one turning round, this moment, spanner can rotate arbitrarily angled, at unspecified angle,, can twist for the second time again and screw securing member as long as with spanner two lip clamping securing members two opposite side.
Fork spanner commonly used in use, and is dumb, when the twisting nut, can only twist rotation once, twists as need again, must withdraw from spanner, is inserted in securing member again, just can carry out twisting second time, can not continuous operation, lose time.Domestic have a fork spanner new technique of much applying for a patent, as GG---86207473, GG---87215747, GG---88218227.7, GG---88211375 does not have to solve yet and must withdraw from the difficult problem that spanner is inserted in securing member again, they can not continued operation, prolong man-hour, and when work notice quite concentrated, securing member and part on every side in order to avoid instrument is damaged.Some monkey wrench is though the energy continued operation needn't be withdrawed from spanner, complex structure, production cost height.
The utility model, in order to solve the difficult problem of prior art, do not improve production cost again, designed a kind of rotatable spanner that circular groove is arranged, the repertoire that has kept former spanner, and can rotate freely, needn't when operation, twist, withdraw from spanner, again the unnecessary work of clamping securing member is convenient, flexible during use, and production technology is simple, cost is low.
The utility model, key dimension is implemented by following regulation, referring to accompanying drawing.The size of spanner is pressed Q/ZB 149---and 73 regulations are determined, driving end (1), handle (2) becomes 12 ° of angles, and spanner circular groove (3) is near two lip rear portions, and lower lip working face (5) cuts mutually with the arc face of circular groove below.Upper lip working face (4) is tangent with circular groove top arc surface.Flat mouthful of upper and lower two lips, two lip working faces are parallel, and circular groove is opened between two lips.The diameter of circular groove is pressed the analysis-by-synthesis of bolt, the various standard components of nut, the diagonal-size e+1.20 millimeter of getting various different size nuts in the GB6170-86 standard is the diameter of circular groove to the e+1.4 millimeter, spanner lower lip working face (5) length is equivalent to half of the securing member length of side, add 2---4 millimeters, the spanner specification is big more, it is more little to increase coefficient, otherwise coefficient is big more.
The spanner that uses the utility model to produce, constant with the contact area of securing member, the active force of generation is the same, and the securing member bigger than normal to error also can hold, avoided to repeating to twist securing member, spanner withdraws from folder repeatedly and then causes securing member edge or the scratch of part on every side.During use, fastening once after, as long as a counterclockwise twisting, because revolving force direction and centripetal force direction, the effect of power, securing member is screwed in the circular groove of spanner naturally, spanner can be rotated freely, rotating to needs angle, as long as with the securing member in the circular groove, make a concession two lip working faces slightly, because the revolving force effect, clamping for the second time screws securing member again.Convenient, flexible during use, save man-hour, can replace all common fork spanners.
Embodiment: with the spanner of making fastening M8 nut is example, and the opposite side distance of nut is from being 13 millimeters, and diagonal is 14.4 millimeters.With the spanner blank that the spanner mould is forged out, by following size cutting fine finishining, lip working face two parallel across flats are 14.12 to 14.36 millimeters, and the lower lip face length is 5.8 to 7.0 millimeters, and the circular groove interior diameter is the 14.4+1.3 millimeter.
Claims (3)
1, a kind of rotatable spanner that belongs to the hand-operated tools technical field is characterized in that flat mouthful of upper and lower lip, and two lip working faces are parallel, near pulling mouthful two lip rear portions one circular groove (3) is arranged, and the diameter of circular groove is pressed securing member diagonal-size e+1,20 millimeters to the e+1.40 millimeter.The length of lower lip working face is equivalent to half of the securing member length of side, adds the 2-4 millimeter, and the spanner specification is big more, and it is more little to increase coefficient, otherwise coefficient is big more.
2, rotatable spanner according to claim 1 is characterized in that lower lip working face (5) cuts mutually with the arc surface of circular groove below.
3, rotatable spanner according to claim 1 is characterized in that upper lip working face (4) is tangent with the arc surface of circular groove top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213238 CN2057881U (en) | 1989-10-09 | 1989-10-09 | Open rotary spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213238 CN2057881U (en) | 1989-10-09 | 1989-10-09 | Open rotary spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057881U true CN2057881U (en) | 1990-06-06 |
Family
ID=4869281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89213238 Withdrawn CN2057881U (en) | 1989-10-09 | 1989-10-09 | Open rotary spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057881U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8347764B2 (en) | 2008-06-10 | 2013-01-08 | Apex Tool (Hk) Limited Taiwan Branch | Ratchetable open-ended wrench |
| CN103433875A (en) * | 2008-04-30 | 2013-12-11 | 香港商艾沛克斯工具有限公司台湾分公司 | Open speed spanner |
| US8631725B2 (en) | 2008-04-30 | 2014-01-21 | Apex Tool (Hk) Limited Taiwan Branch | Ratchetable open-ended wrench |
-
1989
- 1989-10-09 CN CN 89213238 patent/CN2057881U/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103433875A (en) * | 2008-04-30 | 2013-12-11 | 香港商艾沛克斯工具有限公司台湾分公司 | Open speed spanner |
| US8631725B2 (en) | 2008-04-30 | 2014-01-21 | Apex Tool (Hk) Limited Taiwan Branch | Ratchetable open-ended wrench |
| US8347764B2 (en) | 2008-06-10 | 2013-01-08 | Apex Tool (Hk) Limited Taiwan Branch | Ratchetable open-ended wrench |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |