CN2328480Y - Tangent type spanners - Google Patents
Tangent type spanners Download PDFInfo
- Publication number
- CN2328480Y CN2328480Y CN 98210668 CN98210668U CN2328480Y CN 2328480 Y CN2328480 Y CN 2328480Y CN 98210668 CN98210668 CN 98210668 CN 98210668 U CN98210668 U CN 98210668U CN 2328480 Y CN2328480 Y CN 2328480Y
- Authority
- CN
- China
- Prior art keywords
- spanner
- plane
- circular arc
- tangent
- arc surface
- 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 - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model relates to a tangent type spanner, which is characterized in that the jaw of the spanner is provided with a plane surface KE. The plane surface and a circular arc surface EF are tangent. A plane surface AB is arranged in the jaw. The plane surface AB, the circular arc surface CA, and the circular arc surface BD are respectively tangent. A groove is arranged between two contiguous circular arc surfaces which are the circular arc surface CA and the circular arc surface BD. The utility model is in the state of rolling contact in the course of contact of the utility model and workpieces, which leads working points to be distributed uniformly and to avoid direct contact with the edge angle of a screw nut. Then, abrasion to the screw nut is reduced, and the service life of the screw nut is extended. In addition, the tangential position of the plane surface of an inner wall and circular arc surfaces can automatically compensate after abrasion. Then, the service life of tools can be extended. The tangent type spanner is suitable for a movable spanner, an open spanner, etc.
Description
The utility model relates to a kind of spanner, especially a kind of tangent type spanner that can prevent that the nut corner angle are worn.
Because spanner is easy to carry, and be applicable to the workpiece (bolt, nut) of different size, a thing can solve problems such as the screw that occurs in many work and the life becomes flexible, therefore extremely people's welcome at hand.Existing spanner is made of handle and spanner, mouthful place of pulling of spanner is two parallel surfaces, can block two opposite side of nut or bolt during operation flexibly and easily, when the spanner fastening nut, pull mouthful parallel surface and rotated an angle with respect to parallel two opposite side of nut, make the impetus pull mouthful concentrate on the angle of nut, cause the nut angle often to be damaged and the reason that can't pull.
The purpose of this utility model is to provide a kind of tangent type spanner that can prevent that the workpiece corner angle are worn.
The utility model is such: be provided with plane KE on the mouth pulling of spanner, this plane and arc surface EF are tangent, are provided with plane AB in pulling mouth, and this plane AB is tangent with arc surface CA, BD respectively, and are provided with groove between two adjacent arc surfaces.So that when fastening nut or bolt, make origin of force become the face that rolls and contact, thereby the corner angle of avoiding nut or bolt are worn by original point.The length of plane AB is less than the length of side of hex nut or bolt; The face that connects two circular arcs in the groove is curved surface or angled face or plane, and depth of groove is to avoid nut or bolt corner angle summit and to satisfy spanner wall intensity and be advisable; The radius R of circular arc C A, BD is advisable to satisfy spanner wall intensity.
The utility model compared with prior art has following advantage and good effect: 1. put forth effort on the hex nut opposite side plane owing to pulling a mouthful plane, and with the contact process of workpiece in be the rolling contact condition, impetus is evenly distributed, reduces wearing and tearing, prolong the service life of nut nut.2. between two arc surfaces, form a groove, thereby avoid contacting, make that the nut corner angle are not easy to wear to skid, prolong nut service life with the direct of nut corner angle.3. the profile of pulling the tangent position of mouthful inner plane and arc surface can compensate after wearing and tearing voluntarily, thereby prolongs the service life of spanner.4. pulling a mouthful interior face is the plane, and nut two opposite side are played the role of positioning, and makes workpiece be difficult for skidding off and pulls mouth.The utility model is suitable for open-end wrench or the fork spanner or the monkey wrench of all size.
Fig. 1 is the structural representation of the utility model;
Fig. 2 is another structural representation of the utility model.
Below in conjunction with accompanying drawing the utility model is described further.
Among the figure, 1 is spanner, and 2 is hex nut, 3 is plane KE, is located at and pulls on the mouth, and 4 is arc surface EF, KE is tangent with the plane, and 5 is plane AB, is located at and pulls in the mouth, and tangent with arc surface CA and BD respectively, 6 is groove, is located between the adjacent two arc surface EF and CA, and with the face that two arc surfaces join be the plane, 7 is another groove, is located between two arc surface BD and the CA, and the face that joins with two arc surfaces is an angled face.The degree of depth of groove 6,7 is advisable to satisfy spanner intensity and can avoid nut corner angle summit.The radius R of each arc surface is advisable to satisfy spanner wall intensity.
Claims (4)
1, a kind of tangent type spanner is characterized in that being provided with plane KE on the mouth pulling of spanner, and this plane and arc surface EF are tangent, are provided with plane AB in pulling mouth, and this plane is tangent with arc surface CA, BD respectively, and is provided with groove between two adjacent arc surfaces.
2, spanner according to claim 1 is characterized in that the length of side of the length of plane AB less than hex nut or bolt.
3, spanner according to claim 1 it is characterized in that the face of two circular arcs of connection in the groove is curved surface or angled face or plane, and depth of groove is to avoid nut or bolt corner angle summit and to satisfy spanner wall intensity and be advisable.
4, spanner according to claim 1 is characterized in that the radius R of circular arc C A, BD is advisable to satisfy spanner wall intensity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98210668 CN2328480Y (en) | 1998-01-21 | 1998-01-21 | Tangent type spanners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98210668 CN2328480Y (en) | 1998-01-21 | 1998-01-21 | Tangent type spanners |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2328480Y true CN2328480Y (en) | 1999-07-14 |
Family
ID=33965622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98210668 Expired - Fee Related CN2328480Y (en) | 1998-01-21 | 1998-01-21 | Tangent type spanners |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2328480Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166794A1 (en) * | 2016-04-01 | 2017-10-05 | 刘玉林 | Adjustable spanner with asymmetric double-splayed jaw and ratchet function |
-
1998
- 1998-01-21 CN CN 98210668 patent/CN2328480Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017166794A1 (en) * | 2016-04-01 | 2017-10-05 | 刘玉林 | Adjustable spanner with asymmetric double-splayed jaw and ratchet function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |