CN103912560A - Adjustable self-plugging rivet - Google Patents
Adjustable self-plugging rivet Download PDFInfo
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- CN103912560A CN103912560A CN201410086885.1A CN201410086885A CN103912560A CN 103912560 A CN103912560 A CN 103912560A CN 201410086885 A CN201410086885 A CN 201410086885A CN 103912560 A CN103912560 A CN 103912560A
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- core bar
- rivet
- nut
- adjustable self
- rivet nut
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Abstract
The invention discloses an adjustable self-plugging rivet. The adjustable self-plugging rivet comprises a core bar with a limiting cap, a casing pipe, a rivet body, a driving nut, and an adjusting ring, wherein the casing pipe, the rivet body and the driving nut sequentially sleeve the core bar, the core bar is in thread match with the rivet body, the adjusting ring sleeves the core bar and is located between the limiting cap and the casing pipe, the driving nut is in sliding match with the core bar, one end of the rivet body, which faces the driving nut, is provided with at least one lug, and an end surface of the driving nut, which faces the driving nut, is provided with a notch matched with the lug. According to the adjustable self-plugging rivet, riveting members with different thicknesses can be riveted by various wrinkles formed by the adjusting ring, and the adjustable self-plugging rivet is applicable to clamping layers with ranges broader than the prior art; by means of matching of the lug and the notch, the rivet body and the driving nut can be well fixed, and riveting qualities can be conveniently and effectively checked; the driving nut is in sliding matching with the core bar, and a hole wall of the driving nut is free of threads, so that the driving nut can be more convenient to install and operate.
Description
Technical field
The present invention relates to fastener areas, be specifically related to a kind of adjustable self-plugging rivet.
Background technique
When the equipment in small space region is connected, often need to consider its connection means, such as adopting and be threaded at small space, just need the shape of consideration instrument, size whether can put into small space, also need to consider whether be in place, whether connection part is reliable etc.
Therefore riveted joint for multiselect while connection in small space region.The patent documentation that is CN201011355Y as notice of authorization number discloses a kind of single-drum shaped self-plugging rivet.This single-drum shaped self-plugging rivet comprises rivet nut and the blind rivet in rivet nut in tandem, rivet nut and blind rivet are to form to be fixedly connected, rivet nut is formed by the shade of capped pipe and capped pipe lower end, the peripheral wall of the end, upper end of the capped pipe of rivet nut is provided with a file silk, file silk is straight burr, in the peripheral wall of the underpart of the capped pipe of rivet nut, be also provided with a file silk, file silk is straight burr.Single-drum shaped self-plugging rivet, after riveted joint processing, can make the capped pipe of the rivet nut of single-drum shaped self-plugging rivet play the state maintenance perfection of the profile of drum, and can also reach the effect of good fixed structure piece.
When riveted joint, need to check whether the flatness of riveting intensity, riveted joint face meets the demands.Especially in some special industries, as at aviation field, the rivet of its use not only will meet the requirement of tensile strength, also needs the smooth of the riveted joint face that guarantees., because controlling fracture surface, there is the irregular problem of riveted joint face in existing self-plugging rivet, out-of-flatness riveted joint face is needed to carry out the smooth polishing of end face, but when polishing, easily abrade matrix surface and barrier coating, cause unnecessary loss, but also can affect manufacturing efficiency.
The patent documentation that is CN203321996U as notice of authorization number discloses a kind of self-plugging rivet, and this rivet comprises rivet nut, core bar, drive nut, body, ring; Rivet nut between body and drive nut, rivet nut with core bar for being threaded; Core bar bar footpath is Full Thread FT, and its one end is T shape round column structure, is provided with and twists into two parts groove at the middle part of core bar, twists into two parts two sections, groove two ends Major Diam inconsistent, is greater than by tail end Major Diam by head end Major Diam; Body is complete hollow step hole cylindrical structural, with core bar be Spielpassung, be set in core bar; Ring is full hollow cylinder structure, with body be Spielpassung, be installed in the relevant position of body; One end that rivet nut matches with body is external conical shape, and another end that matches with drive nut is for inner conical, and whole rivet nut is complete hollow female thread structure; Drive nut is hexagonal female thread structure, and for being threaded, the large footpath of drive nut internal thread size is consistent with core bar tail end Major Diam with core bar; One end that drive nut matches with rivet nut is also cone structure.
When the self-plugging rivet of this patent documentation is riveted, drive nut is fixed rivet nut, by Riveting Tool, core bar is rotated, core bar moves with respect to rivet nut, make the raw fold of the sleeve-shaped sell of one's property, ring is also out of shape thereupon and is filled in the space in fold, and core bar is subject to rupturing after certain force, completes the connection to riveting parts.This self-plugging rivet can be locked by riveted joint body, but the thickness for riveted joint body riveted joint body portion has strict restriction, if thickness is too small, core bar can be given prominence to rivet nut, need to polish for a long time with polisher, this can increase labor intensity, also can increase riveted joint body is produced to the risk of destroying; If thickness is excessive, core bar can be absorbed in rivet nut excessively dark after rupturing, cause core bar and rivet nut length of thread engagement too short, and join strength reduces, and rivets unsuccessfully.
Summary of the invention
For the problems referred to above, the invention provides a kind of applicability strong, be convenient to install with check, the smooth adjustable self-plugging rivet in rear surface be installed.
The technological scheme that the present invention takes is as follows:
A kind of adjustable self-plugging rivet, comprise with the core bar of limited cap and be set in successively sleeve pipe, rivet nut, the drive nut on this core bar, described core bar and rivet nut are screw-thread fit, also comprise the regulating ring being set on core bar, described regulating ring is between limited cap and sleeve pipe, described drive nut and core bar are slidably matched, and described rivet nut is provided with at least one projection towards one end of drive nut, and described drive nut is provided with the recess matching with described projection towards the end face of rivet nut.
Described limited cap is arranged on one end of core bar, and described referring to successively from limited cap position starts to arrange successively to the other end of core bar.
Drive nut has the hole of matching with core bar, and drive nut and the core bar hole wall that refers to drive nut that is slidably matched does not have screw thread, and drive nut can be free to slide on core bar.
In the time that number of slugs is more than or equal to two, each projection is circumferentially uniformly distributed along rivet nut.
When use, the recess of drive nut and the projection of rivet nut cooperatively interact, riveting tool blocks drive nut, and drive nut and rivet nut are not moved, and riveting tool drives core bar rotation simultaneously, core bar is moved with respect to rivet nut, casing deformation, now regulating ring can regulate according to the difference of riveted joint body thickness, in the time that riveted joint body thickness is larger, regulating ring can form fold, and core bar becomes large with respect to the movement travel of rivet nut; When riveted joint body thickness hour, regulating ring can not form fold or form fold in a small amount, riveted joint arrives after specified force, core bar fracture now can twist off projection by rotariling actuate nut or other forms.Described projection has two effects, and the one, coordinate with the recess of drive nut, rivet nut is not rotated, the 2nd, obtain suitable shearing force by the size that regulates projection, check rivet whether qualified with this.Described regulating ring can adaptive different-thickness riveted joint body, applicability is strong.
As preferably, described regulating ring comprises:
Deformable body, is set on core bar;
The first bulge loop, is positioned at one end of deformable body, with limited cap against;
The second bulge loop, is positioned at the other end of deformable body, with sleeve pipe against.
Regulating ring in process of production, also passes through heat treatment process, can have very high intensity and good elasticity, and deformable body, by the extruding of the first bulge loop and the second bulge loop, can form fold, reaches the object of adjusting.
There is no particular limitation for the size of the first bulge loop, the second bulge loop, but for the conformity of size and have stressedly preferably, as preferably, the external diameter of described the first bulge loop equates with the external diameter of limited cap; The external diameter of described the second bulge loop equates with the external diameter of sleeve pipe, and the external diameter of described the first bulge loop and the second bulge loop is all greater than the external diameter of deformable body.
The first bulge loop and the second bulge loop lifting surface area are large, and because the deformable body of regulating ring is thinner, and deformable body internal diameter tightly makes core bar, and therefore regulating ring can form fold from middle part outwardly convex, and the degree of fold can change according to the pressure being subject to.
As preferably, the quantity of described projection is two, is uniformly distributed along the circumferential of rivet nut.
The shape of projection can be multiple, and as circular, square etc., as preferably, described projection is bar shaped, and the length direction of projection is for radially.
Projection is that bar shaped can better contact cooperation with recess, and can be convenient to control by the thickness and the length that regulate bar shaped projection the power that projection ruptures.
The described rivet nut first end that one end of drive nut is rivet nut dorsad, the second end that is rivet nut towards one end of drive nut, the first end of rivet nut is provided with chamfering, and the second end of rivet nut is provided with annular limit dais, and described projection is arranged on limit dais.
Described chamfering has part to stretch in sleeve pipe, plays guiding sleeve motion.
As preferably, the external frame of described limit dais cross section is trapezoidal.
Described sleeve pipe is provided with ladder-type through hole, and this ladder-type through hole is macropore away from limited cap one end, is aperture near limited cap one end, and the contiguous limited cap of described core bar place is provided with annular boss, and outer wall and the aperture of annular boss cooperatively interact.
Like this be arranged so that sleeve pipe is less near the thickness of rivet nut part, more yielding compared to the part away from rivet nut.
As preferably, also comprise the packing ring being set on core bar, described packing ring is inlaid in inside pipe casing, and outer wall and the macropore of packing ring cooperatively interact.
Packing ring is used for filling the space forming after casing deformation, improves the intensity of sleeve pipe with this.Described packing ring can be the multiple existing yielding materials such as plastic material.
Described rivet nut is hollow female thread structure, and described core bar is provided with the outside thread suitable with rivet nut internal thread, described outside thread one end adjacent rings boss, and the contiguous rivet nut of the other end is towards one end of drive nut.
Described contiguous rivet nut, towards one end of drive nut, is interpreted as, and the externally threaded the other end both can be in region corresponding to rivet nut, also can be within core bar exposes the region of rivet nut.If do not consider processing cost, even core bar can also be set to Full Thread FT structure (except annular boss).
In order to make instrument can better hold core bar, to drive core bar motion, described core bar is provided with at least one catch surface away from one end of limited cap.
As preferably, described catch surface is two, is symmetrically distributed on core bar.
Described core bar is provided with breaking groove, and breaking groove can have various ways, and as along the circumferential spaced apart fracture port of core bar, as preferably, described core bar is provided with annular breaking groove in region corresponding to sleeve pipe.
In order to facilitate instrument can effectively hold drive nut, the external frame in described drive nut cross section is regular polygon.Drive nut of the present invention can use common material (steel or iron) manufacture, and this can be cost-saving.
Better in order to guarantee stress performance, as preferably, the material of described core bar, rivet nut, sleeve pipe, regulating ring is titanium alloy.
The invention has the beneficial effects as follows: form fold in various degree by regulating ring, can rivet the riveted joint body of different-thickness, can be suitable for the gripping layer larger than prior art scope; By the cooperation of projection and recess, rivet nut can well interfix with drive nut, and passes through projection, check riveting quality that can be easily and effectively; Drive nut and core bar are for being slidably matched, and the hole wall of drive nut does not have screw thread, convenient when installing, operating.
Accompanying drawing explanation
Fig. 1 is the structural representation after the assembling of the adjustable self-plugging rivet of the present invention;
Fig. 2 is the front view of drive nut;
Fig. 3 is A-A sectional view in Fig. 2;
Fig. 4 is the explosive view of the adjustable self-plugging rivet of the present invention;
Fig. 5 is the side view of rivet nut;
Fig. 6 is the front view of rivet nut;
Fig. 7 is B-B sectional view in Fig. 6;
Fig. 8 is the structural representation of regulating ring;
Fig. 9 is the design sketch after prior art has been riveted;
Figure 10 is the design sketch after the present invention has riveted.
Each reference character is:
1. core bar, 2. sleeve pipe, 3. packing ring, 4. rivet nut, 5. drive nut, 6. limited cap, 7. annular boss, 8. breaking groove, 9. catch surface, 10. recess, 11. projections, 12. chamferings, 13. limit daiss, 14. regulating rings, 15. first bulge loops, 16. deformable bodies, 17. second bulge loops.
Embodiment
Below in conjunction with each accompanying drawing, the adjustable self-plugging rivet of the present invention is described in detail.
As shown in Fig. 1～8, a kind of adjustable self-plugging rivet, comprise with the core bar 1 of limited cap 6 and be set in successively the regulating ring 14 on this core bar, sleeve pipe 2, packing ring 3, rivet nut 4 and drive nut 5, core bar 1 is screw-thread fit with rivet nut 4, drive nut 5 is slidably matched with core bar 1, sleeve pipe 2 is provided with ladder-type through hole, this ladder-type through hole is macropore away from one end of limited cap 6, one end near limited cap 6 is aperture, core bar 1 contiguous limited cap place is provided with annular boss 7, the outer wall of annular boss 7 not only coordinates with the inwall of regulating ring 3 but also cooperatively interacts with aperture, packing ring 3 is inlaid in sleeve pipe 2 inside, and outer wall and the macropore of packing ring cooperatively interact.
As shown in Fig. 1,8, regulating ring comprises:
Deformable body 16, is set on the annular boss 7 of core bar 1;
The first bulge loop 15, is positioned at one end of deformable body, with limited cap 6 against, and the external diameter of the first bulge loop and the external diameter of limited cap equate;
The second bulge loop 17, is positioned at the other end of deformable body, with sleeve pipe 2 against, and the external diameter of the second bulge loop and the external diameter of sleeve pipe equate.
The external diameter of the first bulge loop 15 and the second bulge loop 17 is all greater than the external diameter of deformable body 16, and deformable body, by the extruding of the first bulge loop and the second bulge loop, can form fold, arrives the object regulating.
Rivet nut 4 first end that one end of drive nut 5 is rivet nut dorsad, the second end that is rivet nut towards one end of drive nut 5, the first end of rivet nut is provided with chamfering 12, and the second end of rivet nut is provided with annular limit dais 13, this limit dais is external conical shape, and the external frame of limit dais cross section is trapezoidal.On limit dais 13, be evenly equipped with two projections 11 along the circumferencial direction of rivet nut, two projections are bar shaped, and the length direction of projection is for radially, and drive nut 5 is provided with the recess 10 matching with projection 11 towards the end face of rivet nut, and the external frame in the present embodiment drive nut cross section is regular hexagon.
Core bar 1 is provided with annular breaking groove 8 in the region of sleeve pipe 2 correspondences, and core bar 1 is provided with two catch surface that are arranged symmetrically with 9 away from one end of limited cap 6.
Rivet nut 4 is hollow female thread structure, and core bar is provided with the outside thread suitable with rivet nut internal thread (not shown in FIG.), outside thread one end adjacent rings boss 7, the second end of the contiguous rivet nut of the other end.The second end of the contiguous rivet nut of outside thread, is interpreted as, and the externally threaded the other end both can be in region corresponding to rivet nut, also can be within core bar exposes the region of rivet nut.If do not consider processing cost, even core bar can also be set to Full Thread FT structure (except annular boss).
The present invention in use, the recess of drive nut and the projection of rivet nut cooperatively interact, and riveting tool blocks drive nut, keep drive nut and rivet nut not to move, riveting tool drives core bar rotation simultaneously, core bar is moved with respect to rivet nut, and compression pipe box, makes its distortion, now regulating ring can regulate according to the difference of riveted joint body thickness, that is: in the time that riveted joint body thickness is larger, regulating ring can form fold, and core bar motion quantitative change is large; When riveted joint body thickness hour, regulating ring can not form fold or form fold in a small amount.Along with the motion of core bar, core bar is stressed becomes large gradually, arrives after specified force, and core bar fracture, now can twist off projection by rotariling actuate nut or other forms.Projection has two effects, and the one, rivet nut is not rotated, the 2nd, whether check rivet is qualified.
As shown in Figure 9, the design sketch of prior art after having riveted; As shown in figure 10, be the design sketch of the present invention after having riveted.
Adjustable self-plugging rivet of the present invention, forms fold in various degree by regulating ring, can rivet the riveted joint body of different-thickness, can be suitable for the gripping layer larger than prior art scope; By the cooperation of projection and recess, rivet nut can well interfix with drive nut, and passes through projection, check riveting quality that can be easily and effectively; Drive nut and core bar are for being slidably matched, and the hole wall of drive nut does not have screw thread, convenient when installing, operating.
The foregoing is only the preferred embodiments of the present invention; not thereby limit scope of patent protection of the present invention; the equivalent structure transformation that every utilization specification of the present invention and accompanying drawing content are done; directly or indirectly be used in other relevant technical fields, be all in like manner included in protection scope of the present invention.
Claims (10)
1. an adjustable self-plugging rivet, comprise with the core bar of limited cap and be set in successively sleeve pipe, rivet nut, the drive nut on this core bar, described core bar and rivet nut are screw-thread fit, it is characterized in that: also comprise the regulating ring being set on core bar, described regulating ring is between limited cap and sleeve pipe, described drive nut and core bar are slidably matched, described rivet nut is provided with at least one projection towards one end of drive nut, and described drive nut is provided with the recess matching with described projection towards the end face of rivet nut.
2. adjustable self-plugging rivet according to claim 1, is characterized in that: described regulating ring comprises:
Deformable body, is set on core bar;
The first bulge loop, is positioned at one end of deformable body, with limited cap against;
The second bulge loop, is positioned at the other end of deformable body, with sleeve pipe against.
3. adjustable self-plugging rivet according to claim 2, is characterized in that: the external diameter of described the first bulge loop equates with the external diameter of limited cap; The external diameter of described the second bulge loop equates with the external diameter of sleeve pipe, and the external diameter of described the first bulge loop and the second bulge loop is all greater than the external diameter of deformable body.
4. adjustable self-plugging rivet according to claim 1, is characterized in that: the quantity of described projection is two, be uniformly distributed, and projection is bar shaped along the circumferential of rivet nut, and the length direction of projection is for radially.
5. adjustable self-plugging rivet according to claim 1, it is characterized in that: the described rivet nut first end that one end of drive nut is rivet nut dorsad, the second end that is rivet nut towards one end of drive nut, the first end of rivet nut is provided with chamfering, the second end of rivet nut is provided with annular limit dais, and described projection is arranged on limit dais.
6. adjustable self-plugging rivet according to claim 1, it is characterized in that: described sleeve pipe is provided with ladder-type through hole, this ladder-type through hole is macropore away from limited cap one end, be aperture near limited cap one end, the contiguous limited cap of described core bar place is provided with annular boss, and outer wall and the aperture of annular boss cooperatively interact.
7. adjustable self-plugging rivet according to claim 6, is characterized in that: also comprise the packing ring being set on core bar, described packing ring is inlaid in inside pipe casing, and outer wall and the macropore of packing ring cooperatively interact.
8. adjustable self-plugging rivet according to claim 6, it is characterized in that: described rivet nut is hollow female thread structure, described core bar is provided with the outside thread suitable with rivet nut internal thread, described outside thread one end adjacent rings boss, and the contiguous rivet nut of the other end is towards one end of drive nut.
9. adjustable self-plugging rivet according to claim 1, is characterized in that: described core bar is provided with at least one catch surface away from one end of limited cap.
10. adjustable self-plugging rivet according to claim 1, is characterized in that: described core bar is provided with annular breaking groove in region corresponding to sleeve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086885.1A CN103912560B (en) | 2014-03-08 | 2014-03-08 | A kind of adjustable self-plugging rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410086885.1A CN103912560B (en) | 2014-03-08 | 2014-03-08 | A kind of adjustable self-plugging rivet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103912560A true CN103912560A (en) | 2014-07-09 |
| CN103912560B CN103912560B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410086885.1A Active CN103912560B (en) | 2014-03-08 | 2014-03-08 | A kind of adjustable self-plugging rivet |
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| CN (1) | CN103912560B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317802A (en) * | 2015-12-04 | 2016-02-10 | 航天精工股份有限公司 | Blind rivet for connecting composite materials capable of adjusting interlayer thickness range |
| CN105351317A (en) * | 2015-12-04 | 2016-02-24 | 航天精工股份有限公司 | Rotary blind rivet |
| CN112377498A (en) * | 2020-10-30 | 2021-02-19 | 任佳鸣 | Copper-zinc-aluminum alloy rivet |
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| US4627775A (en) * | 1983-09-01 | 1986-12-09 | Huck Manufacturing Company | Blind fastener with grip compensating means |
| CN1392929A (en) * | 2000-09-13 | 2003-01-22 | 好孩子控股公司 | Blind fastener and drive nut assembly |
| US20110010919A1 (en) * | 2008-04-02 | 2011-01-20 | Pratt John D | Flush-mount, blind fastener |
| US20130061452A1 (en) * | 2011-09-14 | 2013-03-14 | John D. Pratt | Fastener and method of installing same |
| CN103291719A (en) * | 2013-06-25 | 2013-09-11 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN203847531U (en) * | 2014-03-08 | 2014-09-24 | 浙江西子航空紧固件有限公司 | Adjustable blind rivet |
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2014
- 2014-03-08 CN CN201410086885.1A patent/CN103912560B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4627775A (en) * | 1983-09-01 | 1986-12-09 | Huck Manufacturing Company | Blind fastener with grip compensating means |
| CN1392929A (en) * | 2000-09-13 | 2003-01-22 | 好孩子控股公司 | Blind fastener and drive nut assembly |
| US20110010919A1 (en) * | 2008-04-02 | 2011-01-20 | Pratt John D | Flush-mount, blind fastener |
| US20130061452A1 (en) * | 2011-09-14 | 2013-03-14 | John D. Pratt | Fastener and method of installing same |
| CN103291719A (en) * | 2013-06-25 | 2013-09-11 | 贵州航天精工制造有限公司 | Self-plugging rivet |
| CN203847531U (en) * | 2014-03-08 | 2014-09-24 | 浙江西子航空紧固件有限公司 | Adjustable blind rivet |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317802A (en) * | 2015-12-04 | 2016-02-10 | 航天精工股份有限公司 | Blind rivet for connecting composite materials capable of adjusting interlayer thickness range |
| CN105351317A (en) * | 2015-12-04 | 2016-02-24 | 航天精工股份有限公司 | Rotary blind rivet |
| CN105317802B (en) * | 2015-12-04 | 2017-10-13 | 航天精工股份有限公司 | A kind of composite connection self-plugging rivet of adjustable thickness of interlayer scope |
| CN112377498A (en) * | 2020-10-30 | 2021-02-19 | 任佳鸣 | Copper-zinc-aluminum alloy rivet |
| CN112377498B (en) * | 2020-10-30 | 2023-05-09 | 东莞市鸿邦金属制品有限公司 | Copper zinc aluminum alloy rivet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103912560B (en) | 2016-08-17 |
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Effective date of registration: 20191230 Address after: 201712 No. 555 Tian Ying Road, Qingpu Industrial Park, Qingpu District, Shanghai Patentee after: Ritai (Shanghai) Automobile Standard Parts Co., Ltd. Address before: 314422 No. 10, new road, Lian hang Economic Zone, Jiaxing, Zhejiang, Haining Patentee before: Zhejiang Xizi Aerospace Fastener Co., Ltd. |
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