CN103185055A - Fastener, drive piece matched with fastener and punch for molding fastener - Google Patents
Fastener, drive piece matched with fastener and punch for molding fastener Download PDFInfo
- Publication number
- CN103185055A CN103185055A CN2011104506752A CN201110450675A CN103185055A CN 103185055 A CN103185055 A CN 103185055A CN 2011104506752 A CN2011104506752 A CN 2011104506752A CN 201110450675 A CN201110450675 A CN 201110450675A CN 103185055 A CN103185055 A CN 103185055A
- Authority
- CN
- China
- Prior art keywords
- fastening piece
- groove
- side wall
- sidewall
- face
- 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
Links
Images
Landscapes
- Insertion Pins And Rivets (AREA)
- Slide Fasteners (AREA)
Abstract
The invention discloses a fastener, which comprises a screw joint part and a head part, wherein the screw joint part and the head part are connected, and a detachment groove is formed in the head part. The detachment groove is a polygonal groove with even number of edges being more than six and comprises a plurality of first side walls and a plurality of second side walls, each first side wall is arranged between every two adjacent second side walls at interval and is connected with the two adjacent second side walls, the middle part of each first side wall is convexly provided with a trapezoidal pushing and holding tooth towards the center of the head part, a hexagonal clamping groove is formed between every two adjacent pushing and holding teeth, and each clamping groove is composed of parts of the two adjacent first side walls and the second wall sandwiched between the parts of the two adjacent first side walls. The invention further provides a drive piece matched with the fastener and a punch for molding the fastener. The fastener is difficult to slip and long in service life.
Description
Technical field
The present invention relates to the punching pin of a kind of fastening piece, the actuator that cooperates with this fastening piece and this fastening piece of moulding.
Background technique
Fastening piece is widely used in the every field of mechanical industry, in order to two or more parts are fastenedly connected in together.This fastening piece generally comprises spiro union portion and is located at the head of this spiro union portion one end, is concaved with the dismounting groove on the end face away from spiro union portion on this head, and the inwall of this dismounting groove is provided with a plurality of corner angle.General actuator cooperates the fastening piece installation or removal with these corner angle, the ﹐ wearing and tearing that these corner angle can wrecking property in dismounting or installation process frequently for the fastening piece with interchangeability, thereby the phenomenon that actuator skids in the dismounting groove appears during installation or removal, cause driving the efficient step-down, and then influenced the working life of fastening piece.
Summary of the invention
In view of the foregoing, be necessary to provide the punching pin of long and the fastening piece that is difficult for skidding, the actuator that cooperates with this fastening piece and this fastening piece of moulding of a kind of working life.
A kind of fastening piece, it comprises continuous spiro union portion and head, described head offers the dismounting groove.Described dismounting groove is the above even number polygonal groove of Hexagon, this dismounting groove comprises a plurality of the first side walls and a plurality of second sidewall, between each the first side wall is located among per two second adjacent sidewalls at interval, and each the first side wall is connected with adjacent two second sidewalls, convex with a trapezoidal tooth that supports on the middle part of each the first side wall towards the center of this head, shape has the Hexagon engagement groove between the tooth in per two adjacent supporting, and each engagement groove is made of two adjacent part the first side walls and second sidewall that is sandwiched between the above-mentioned two adjacent part the first side walls.
A kind of actuator, it comprises bar portion and the auxiliary section that links to each other with bar portion, convex with the engagement portion that the dismounting groove with described fastening piece matches on the end away from the cadre on the described auxiliary section, radially convex with a plurality of engaging tooths of a plurality of hexagons that the engagement groove with described fastening piece matches on the sidewall of this engagement portion.
A kind of punching pin, it has drift, and described drift comprises the pressing part that the dismounting groove with this fastening piece matches, and radially convexes with the punching press sword of a plurality of hexagons that the engagement groove with this fastening piece matches on the sidewall of this pressing part.
Above-mentioned fastening piece adopts a plurality of engagement grooves and a plurality of tooth that supports, each engagement groove is in per two adjacent supporting between the tooth, actuator snaps in the engagement groove of this fastening piece and the sidewall of this actuator is that face contacts with the sidewall of this engagement groove, and the tooth that supports of this actuator and this fastening piece supports, so that actuator is difficult for skidding in the dismounting groove of fastening piece, but and then the transmission Maximum Torque, have higher driving efficient.In addition, can reduce the active force that each engagement groove is subjected to by a plurality of engagement grooves are set, thereby reduce the wearing and tearing of dismantling or installing in the journey, increase the service life.
Description of drawings
Fig. 1 is the fastening piece of embodiment of the present invention and the stereogram of actuator.
Fig. 2 is the amplification stereogram of fastening piece among Fig. 1.
Fig. 3 is the amplification stereogram of actuator among Fig. 1.
Fig. 4 is the stereogram of the punching pin of moulding fastening piece shown in Figure 1.
The primary component symbol description
| Fastening |
100 |
| |
11 |
| |
110 |
| The |
13 |
| Chamfering | 130 |
| |
131 |
| The |
132 |
| |
1311 |
| |
1313 |
| |
133 |
| |
134 |
| Spiro |
15 |
| |
151 |
| |
200 |
| |
21 |
| |
211 |
| The |
213 |
| The |
23 |
| The |
230 |
| |
231 |
| First side is supported |
2311 |
| Second side is supported |
2313 |
| |
300 |
| |
31 |
| |
33 |
| |
331 |
| The inclined- |
3311 |
| Pressing |
333 |
| The punching |
3331 |
Following embodiment will further specify the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Be described in further detail below in conjunction with the punching pin of the drawings and the specific embodiments to fastening piece of the present invention, the actuator that drives this fastening piece and this fastening piece of moulding.
See also Fig. 1 and Fig. 2, fastening piece 100 comprises head 11 and the spiro union portion 15 that links to each other with head 11, and head 11 has end face 110 away from an end of spiro union portion 15, and forms dismounting groove 13 from the mediad sunken inside of end face 110.Spiro union portion 15 is rod-like structure, offers screw thread 151 on it.
Dismounting groove 13 is the polygonal groove, and its end edge away from spiro union portion 15 is formed with chamfering 130.In the present embodiment, dismounting groove 13 is hexagonal indentations.Dismounting groove 13 comprises three the first side walls 132 and three second sidewalls 134.Three the first side walls 132 are located among three second sidewalls 134 at interval, and each the first side wall 132 is connected with adjacent two second sidewalls 134.The size of the first side wall 132 is greater than the size of second sidewall 134, and the elongated surfaces of three the first side walls 132 or three second sidewalls 134 intersects and can define an isosceles triangle respectively.Headward 11 center convexes with one and supports tooth 131 on the middle part of each the first side wall 132 of dismounting groove 13.Shape has engagement groove 133 between the tooth 131 in per two adjacent supporting, and the quantity of engagement groove 133 is three.
Each supports tooth 131 and comprises a supporting surface 1313 and two relief surface 1311 that link to each other with supporting surface 1313 respectively, and supporting surface 1313 be arranged in parallel with the first side wall 132, relief surface 1311 and supporting surface 1313 settings in a certain angle.In the present embodiment, support tooth 131 and be trapezoid shaped, the angle between relief surface 1311 and the supporting surface 1313 is 120 degree.
Each engagement groove 133 is made of two adjacent part the first side walls 132 and second sidewall 134 that is sandwiched between the above-mentioned two adjacent part the first side walls 132.Second sidewall 134 and the first side wall 132 settings in a certain angle.In the present embodiment, engagement groove 133 is hexagonal indentations, and the angle between second sidewall 134 and the first side wall 132 is 120 degree.Relief surface 1311 links to each other with the first side wall 132 and setting in a certain angle.In the present embodiment, the angle between relief surface 1311 and the first side wall 132 is 120 degree.
See also Fig. 3, comprise that with the actuator 200 that fastening piece 100 is used bar portion 21 reaches and the bar portion 21 coaxial auxiliary sections 23 that link to each other and be positioned at bar portion 21 ends.Bar portion 21 is roughly multidiameter shaft shape, and it comprises main body 211 and is connected in the grip part 213 of main body 211 1 ends.Auxiliary section 23 roughly is cylindrical shape, and its relative grip part 213 axially is convexly set in the other end of main body 211, and the diameter of axle size of auxiliary section 23 is greater than the diameter of axle size of main body 211.End face away from main body 211 on the auxiliary section 23 convexes with engagement portion 230, and the engagement groove 133 of corresponding fastening piece 100 radially convexes with a plurality of engaging tooths 231 on the sidewall of engagement portion 230.In the present embodiment, the quantity of engaging tooth 231 is three.Engaging tooth 231 comprises first side to face 2311 and supports face 2313 with first side to two second sides that face 2311 links to each other respectively, and both settings in a certain angle.In the present embodiment, engaging tooth 231 is hexagon, and first side supports face 2311 and second side is 120 degree to the angle between the face 2313.When engagement portion 230 snaps in the dismounting groove 13 of fastening piece 100, first side support face 2311 and second side support face 2313 respectively with relief surface 1311 and the first side wall 132 corresponding matching.
See also Fig. 4, the punching pin 300 that is used for forming fastener 100 comprises body 31 and is convexly equipped with the drift 33 that forms by body 31 1 ends.Body 31 is cylindrical structure, also can be the rod-like structure that cross section is rectangle or other shapes certainly.Drift 33 comprises matrix 331 and is convexly set in pressing part 333 on the matrix 331 that on the sidewall of matrix 331 there be towards the inclined-plane 3311 that pressing part 333 is obliquely installed chamfering 130 shapes of corresponding dismounting groove 13, punch out the chamfering 130 of fastening piece 100 with correspondence.The shape of pressing part 333 and size are corresponding with the dismounting groove 13 of head 11, and suitable with the engagement portion 230 of actuator 200.The engagement groove 133 of corresponding fastening piece 100 radially convexes with a plurality of punching press swords 3331 on the sidewall of pressing part 333.In the present embodiment, the quantity of punching press sword 3331 is three, and punching press sword 3331 is hexagon, punches out the engagement groove 133 of fastening piece 100 with correspondence.
When using actuator 200 to drive fastening piece 100, in the dismounting groove 13 of the head 11 of the engagement portion 230 insertion fastening pieces 100 of actuator 200, wherein first side of the engaging tooth 231 of engagement portion 230 support face 2311 and second side support face 2313 respectively with relief surface 1311 and the first side wall 132 corresponding matching of fastening piece 100, and apply the power that pushes of circumferencial direction by 231 pairs of relief surface of engaging tooth 1311 and the first side wall 132, thereby fastening piece 100 and actuator 200 are rotated synchronously.
When using punching pin 300 forming fasteners 100, utilize drift that columned head 11 is carried out punching press, and then mold the dismounting groove 13 of head 11.
Fastening piece 100 adopts three engagement grooves 133 and three to support tooth 131, and each engagement groove 133 is two adjacent supporting between the tooth 131, and the first side wall 132 also setting in a certain angle that links to each other with the relief surface 1311 that supports tooth 131.The engaging tooth 231 of actuator 200 snaps in the engagement groove 133 of fastening piece 100 and first side is supported face 2311 and second side contacts with relief surface 1311 and 132 of the first side walls respectively to face 2313, and engagement portion 230 with support tooth 131 and match, so that actuator 200 is difficult for skidding in the dismounting groove 13 of fastening piece 100, but and then the transmission Maximum Torque, have higher driving efficient.In addition, can reduce the active force that each engagement groove 133 bears by a plurality of engagement grooves 133 are set, thereby reduce the wearing and tearing of dismantling or installing in the journey, increase the service life.
Be appreciated that, the shape of dismounting groove 13 is not limited to the hexagonal indentations in the present embodiment, dismounting groove 13 also can be the above even number polygonal groove of Hexagon, be convexly equipped with interval on the sidewall of even number polygonal groove then and support tooth 131 and get final product, the concrete shape of dismounting groove 13 can change according to actual needs.
The quantity that is appreciated that the first side wall 132 and second sidewall 134 is not limited to three in the present embodiment, changes according to the shape of dismounting groove 13.
Be appreciated that chamfering 130 also can directly omit, the inclined-plane 3311 of the drift 33 of corresponding punching pin 300 also can omit, and can change according to actual needs.
Be appreciated that, the quantity that supports tooth 131 and engagement groove 133 is not limited to three in the present embodiment, it also can be served as reasons less than three or greater than three, and the quantity setting that the quantity correspondence of the engaging tooth 231 of actuator 200 and the pressing part 333 of punching pin 300 supports tooth 131 and engagement groove 133 gets final product.
Be appreciated that, angle between angle between the first side wall 132 and the relief surface 1311, second sidewall 134 and the first side wall 132 and the angle between relief surface 1311 and the first side wall 132 are not limited to the degree of 120 in the present embodiment, also can be less than 120 degree or greater than 120 degree, can change according to actual needs.
Be appreciated that, the shape of engagement groove 133 is not limited to the Hexagon in the present embodiment, also can be Octagon, then in octagonal engagement groove 133 with support tooth 131 and link to each other and get final product, accordingly, the corresponding setting with the shape of engagement groove 133 of the shape of engaging tooth 231 and punching press sword 3331 gets final product.
The dismounting groove 13 that is appreciated that described fastening piece 100 is not limited to the inner concave shape structure in the present embodiment, and it also can adopt profile to be similar to the outer convex type structure of the engagement portion 230 of actuator 200.Accordingly, actuator 200 and punching pin 300 adopt indent formula structure.
In addition, those skilled in the art also can do other variation in spirit of the present invention, and certainly, the variation that these are done according to spirit of the present invention all should be included in the present invention's scope required for protection.
Claims (10)
1. fastening piece, it comprises continuous spiro union portion and head, described head offers the dismounting groove, it is characterized in that: described dismounting groove is the above even number polygonal groove of Hexagon, this dismounting groove comprises a plurality of the first side walls and a plurality of second sidewall, each the first side wall is located between per two second adjacent sidewalls at interval, and each the first side wall is connected with adjacent two second sidewalls, convex with a trapezoidal tooth that supports on the middle part of each the first side wall towards the center of this head, shape has the Hexagon engagement groove between the tooth in per two adjacent supporting, and each engagement groove is made of two adjacent part the first side walls and second sidewall that is sandwiched between the above-mentioned two adjacent part the first side walls.
2. fastening piece as claimed in claim 1, it is characterized in that: each supports tooth and includes two relief surface, and this relief surface links to each other with this first side wall and setting in a certain angle.
3. fastening piece as claimed in claim 2 is characterized in that: each supports tooth and also includes respectively and these two supporting surfaces that relief surface links to each other, and this supporting surface parallels with this first side wall.
4. fastening piece as claimed in claim 1, it is characterized in that: the end edge away from this spiro union portion on this dismounting groove is formed with chamfering.
5. fastening piece as claimed in claim 1, it is characterized in that: described dismounting groove is hexagonal indentations, this the first side wall quantity is three, the quantity of this second sidewall also is three, the size of each this first side wall is greater than the size of this second sidewall, and the elongated surfaces of these three the first side walls or these three second sidewalls intersects and can define an isosceles triangle respectively.
6. actuator that be used for to drive fastening piece as claimed in claim 1, it comprises bar portion and the auxiliary section that links to each other with bar portion, it is characterized in that: convex with the engagement portion that the dismounting groove with described fastening piece matches on the end away from the cadre on the described auxiliary section, radially convex with a plurality of hexagon engaging tooths that the engagement groove with described fastening piece matches on the sidewall of this engagement portion.
7. actuator as claimed in claim 6 is characterized in that: this engaging tooth comprises that interconnective first side supports face and support two second sides that face links to each other with this first side respectively and support face, and this first side is supported face and this second side to face setting in a certain angle.
8. actuator as claimed in claim 7 is characterized in that: it is 120 degree that this first side is supported the angle that face and this second side support between the face.
9. punching pin that is used for moulding fastening piece as claimed in claim 1, it has drift, it is characterized in that: described drift comprises the pressing part that the dismounting groove with this fastening piece matches, and radially convexes with a plurality of hexagon punching press swords that the engagement groove with this fastening piece matches on the sidewall of this pressing part.
10. punching pin as claimed in claim 9, it is characterized in that: this punching pin comprises also and the matrix that convexes with this drift that shape has the inclined-plane that is obliquely installed towards this pressing part on the sidewall of this matrix.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104506752A CN103185055A (en) | 2011-12-29 | 2011-12-29 | Fastener, drive piece matched with fastener and punch for molding fastener |
| TW101100006A TWI440775B (en) | 2011-12-29 | 2012-01-02 | Fastener, driver engaging with the fastener and punch for producing the fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104506752A CN103185055A (en) | 2011-12-29 | 2011-12-29 | Fastener, drive piece matched with fastener and punch for molding fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103185055A true CN103185055A (en) | 2013-07-03 |
Family
ID=48676427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104506752A Pending CN103185055A (en) | 2011-12-29 | 2011-12-29 | Fastener, drive piece matched with fastener and punch for molding fastener |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103185055A (en) |
| TW (1) | TWI440775B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438076A (en) * | 2013-07-29 | 2013-12-11 | 芜湖福司精密模具有限公司 | Universal screw |
| CN104439035A (en) * | 2014-12-11 | 2015-03-25 | 中国航空工业标准件制造有限责任公司 | Fillet cold-rolling auxiliary tool for eccentric key head bolts |
| CN104608088A (en) * | 2015-01-28 | 2015-05-13 | 昆山精冲五金制品有限公司 | Spanner |
| CN106112893A (en) * | 2016-08-11 | 2016-11-16 | 广东技术师范学院 | A kind of flower triangle screw cutter |
| CN106122217A (en) * | 2016-08-11 | 2016-11-16 | 广东技术师范学院 | A kind of flower triangle screw |
| CN109296833A (en) * | 2018-11-30 | 2019-02-01 | 杨威 | A kind of anti-corrosion type wall bushing |
| CN109296834A (en) * | 2018-11-30 | 2019-02-01 | 杨威 | A kind of wall bushing component |
| TWI658906B (en) * | 2016-07-11 | 2019-05-11 | 美商飛利浦斯螺絲公司 | Threaded fastener having a driver-engageable recess formed at an end thereof,fastener system and method of forming a threaded fastener having a driver-engageable recess formed at an end thereof |
| TWI700153B (en) * | 2019-09-05 | 2020-08-01 | 鴻安國際興業有限公司 | Anti-slip fastener driving tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3604305A (en) * | 1969-06-23 | 1971-09-14 | Robertson Mfg Co | Recessed screw |
| CN1263586A (en) * | 1998-03-18 | 2000-08-16 | 卡西诺亚马林卡斯马公司 | System for holding and tightening screws |
| JP2003336613A (en) * | 2002-03-12 | 2003-11-28 | Katsuyuki Totsu | Tinker prevention screw, combination with driver bit, and tinker prevention screw-manufacturing header punch |
| CN201121629Y (en) * | 2007-11-26 | 2008-09-24 | 台湾固而美工业股份有限公司 | Screwed external member group |
| CN201344197Y (en) * | 2008-09-27 | 2009-11-11 | 苏州闪联高压电器有限公司 | Novel theft prevention bolt and special sleeve |
| CN201963697U (en) * | 2010-09-17 | 2011-09-07 | 卧龙电气集团股份有限公司 | Screw bolt used for storage battery anti-theft rack and spanner matched with same |
-
2011
- 2011-12-29 CN CN2011104506752A patent/CN103185055A/en active Pending
-
2012
- 2012-01-02 TW TW101100006A patent/TWI440775B/en not_active IP Right Cessation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3604305A (en) * | 1969-06-23 | 1971-09-14 | Robertson Mfg Co | Recessed screw |
| CN1263586A (en) * | 1998-03-18 | 2000-08-16 | 卡西诺亚马林卡斯马公司 | System for holding and tightening screws |
| JP2003336613A (en) * | 2002-03-12 | 2003-11-28 | Katsuyuki Totsu | Tinker prevention screw, combination with driver bit, and tinker prevention screw-manufacturing header punch |
| CN201121629Y (en) * | 2007-11-26 | 2008-09-24 | 台湾固而美工业股份有限公司 | Screwed external member group |
| CN201344197Y (en) * | 2008-09-27 | 2009-11-11 | 苏州闪联高压电器有限公司 | Novel theft prevention bolt and special sleeve |
| CN201963697U (en) * | 2010-09-17 | 2011-09-07 | 卧龙电气集团股份有限公司 | Screw bolt used for storage battery anti-theft rack and spanner matched with same |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438076A (en) * | 2013-07-29 | 2013-12-11 | 芜湖福司精密模具有限公司 | Universal screw |
| CN104439035A (en) * | 2014-12-11 | 2015-03-25 | 中国航空工业标准件制造有限责任公司 | Fillet cold-rolling auxiliary tool for eccentric key head bolts |
| CN104608088A (en) * | 2015-01-28 | 2015-05-13 | 昆山精冲五金制品有限公司 | Spanner |
| TWI658906B (en) * | 2016-07-11 | 2019-05-11 | 美商飛利浦斯螺絲公司 | Threaded fastener having a driver-engageable recess formed at an end thereof,fastener system and method of forming a threaded fastener having a driver-engageable recess formed at an end thereof |
| US10953522B2 (en) | 2016-07-11 | 2021-03-23 | Phillips Screw Company | Fastener system with stabilizer ribs |
| US20210205965A1 (en) * | 2016-07-11 | 2021-07-08 | Phillips Screw Company | Fastener system with stabilizer ribs |
| CN106112893A (en) * | 2016-08-11 | 2016-11-16 | 广东技术师范学院 | A kind of flower triangle screw cutter |
| CN106122217A (en) * | 2016-08-11 | 2016-11-16 | 广东技术师范学院 | A kind of flower triangle screw |
| CN109296833A (en) * | 2018-11-30 | 2019-02-01 | 杨威 | A kind of anti-corrosion type wall bushing |
| CN109296834A (en) * | 2018-11-30 | 2019-02-01 | 杨威 | A kind of wall bushing component |
| TWI700153B (en) * | 2019-09-05 | 2020-08-01 | 鴻安國際興業有限公司 | Anti-slip fastener driving tool |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201326580A (en) | 2013-07-01 |
| TWI440775B (en) | 2014-06-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103185055A (en) | Fastener, drive piece matched with fastener and punch for molding fastener | |
| CN102562755A (en) | Fastener, driving piece matched with same and punch for forming fastener | |
| CN102486196A (en) | Fastening piece as well as driving piece matched with fastening piece and punch for forming fastening piece | |
| US20080301928A1 (en) | Method for Producing Wrench Socket | |
| KR20080106573A (en) | Ball lock punch retainer | |
| CN103691798A (en) | Fine blanking molding method for reducing collapsed corner of fine-blanking piece | |
| CN202239204U (en) | Enhanced type elongated male die | |
| CN203410921U (en) | S-shaped loading frame for bearing | |
| CN102357597B (en) | Stamping die for automobile clutch diaphragm spring | |
| CN101403424B (en) | Wire rope clip | |
| WO2013011335A1 (en) | Lamella for forming a sipe and a tyre provided by such a sipe, and a method for forming said lamella | |
| CN204622663U (en) | Roller briquetting machine combined type roll body | |
| CN102562754B (en) | Fastener, driving piece matched with fastener and punch forming fastener | |
| CN104314961B (en) | A kind of anti-theft nut and manufacture method thereof | |
| CN202461313U (en) | Bending machine mould with rolling shafts | |
| CN211362099U (en) | Disassembling tool for spline housing of drum wheel shaft of cigarette assembler | |
| CN201217191Y (en) | Box-end wrench pad | |
| CN203239803U (en) | Improved structure of brake shoe back iron | |
| CN203044673U (en) | Male die protection mechanism of punching die | |
| CN212577235U (en) | Hydraulic plate bending machine for production of distribution box | |
| CN220791725U (en) | Square nut of angle grinder | |
| CN105327992B (en) | Make the device of the structural member with radiused edges | |
| CN218049745U (en) | Large-arc bending forming die | |
| CN202079100U (en) | Correction plate of cooling bed | |
| CN201288017Y (en) | Wire rope clip |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130703 |