GB2376279A - Blind rivet - Google Patents
Blind rivet Download PDFInfo
- Publication number
- GB2376279A GB2376279A GB0113829A GB0113829A GB2376279A GB 2376279 A GB2376279 A GB 2376279A GB 0113829 A GB0113829 A GB 0113829A GB 0113829 A GB0113829 A GB 0113829A GB 2376279 A GB2376279 A GB 2376279A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rivet
- stopper
- receiving hole
- shaft
- blind rivet
- 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- Withdrawn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
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000000463 material Substances 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 4
- 238000009435 building construction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
- F16B19/1027—Multi-part rivets
- F16B19/1036—Blind rivets
- F16B19/1045—Blind rivets fastened by a pull - mandrel or the like
- F16B19/1054—Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like being frangible
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
A blind rivet comprises a body (11), having a flange (13) at one end and a receiving hole (12), and a mandrel (30) comprising a shaft (32) and a stopper (20). The stopper has a first end (21) and a second end (23) connected to each other by a frustoconical portion (22). The first end includes two annular flanges (241). The second end (23) is joined to the shaft (32) by a neck (31). The blind rivet may be moulded from plastics material.
Description
<Desc/Clms Page number 1>
BLIND RIVET BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to blind rivets and, more particularly, to an improved structure of blind rivet.
2. Description of Related Art
Blind rivets are adapted to join multiple thin-layer members. They can be used to join building construction materials, to bind loose-leaf clip, to secure attachments to the shell of an electric home appliance, to fix plastic advertising boards.
Conventional blind rivets are made of metallic materials for the advantage of high rigidity and stability. However, a metallic blind rivet is electrically conductive, expensive, and easy to become covered with rust. Further, plastic blind rivets are also commercially available for use in certain conditions. The advantages of plastic blind rivets include low manufacturing cost, high flexibility, waterproof and rustproof properties. However, a plastic blind rivet is less stable when installed. FIG. 3 shows a plastic blind rivet according to the prior art. When installed, the spherical head 50 has a part engaged into the rivet 60 and a part exposed to the outside of the rivet 60. The spherical head 50 tends to be moved backwards and disengaged from the rivet 60. Because
<Desc/Clms Page number 2>
plastic material becomes aged quickly under the radiation of the light of the sun, and because the plastic rivet expands when hot, the spherical head 50 tends to be forced out of the rivet 60 a certain length of time after the use of the blind rivet.
Therefore, it is desirable to provide an improved structure of blind rivet to mitigate and/or obviate the aforementioned problems.
SUMMARY OF THE INVENTION
It is one object of the present invention to provide a blind rivet, which can be quickly installed to positively secure the work pieces together. It is another object of the present invention to provide a plastic blind rivet, which eliminates the drawbacks of the conventional plastic blind rivets. According to the present invention, the blind rivet is comprised of a rivet, a stopper, and a shaft. The rivet comprises a cylindrical body, a receiving hole axially extended through the cylindrical body, and a brim outwardly projecting from the periphery of one end of the cylindrical body. The stopper comprises a first end, a second end, and a cone connected between the first end and the second end. The first end of the stopper comprises a braking structure, which prohibits the stopper from backward movement after its installation in the receiving hole of the rivet. The braking structure
<Desc/Clms Page number 3>
is formed of a coarse surface of the first end of the stopper and at least one annular retaining flange extended around the periphery of the first end of the stopper. The shaft comprises a shaft body and a neck extended from one end of the shaft body and connected to the second end of the stopper. The breaking strength of the neck is smaller than that of the shaft body, so that continuously pulling the shaft after engagement of the stopper in the receiving hole of the rivet causes the neck to break. Therefore, the shaft body of the shaft can be separated from the stopper. The neck of the shaft can have any of a variety of shapes. The breaking strength of the neck must be tested and inspected. The breaking strength testing and inspecting procedures are of the known art and not within the scope of the present invention. Normally, the outer diameter of the neck of the shaft is smaller than the outer diameter of the second end of the stopper. Further, the shaft can be formed integral with the second end of the stopper. According to the present invention, the stopper can be engaged into the receiving hole of the rivet and kept from sight. To fit different installation requirements, the blind rivet can be a metallic blind rivet, or a plastic blind rivet. Further, the blind rivet can be made having any of a series of sizes.
Other objects, advantages, and novel features of the invention will become more apparent from the following detailed description when taken in conjunction with the accompanying
<Desc/Clms Page number 4>
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIG. 1 is an exploded, partially cutaway view of a blind rivet according to the present invention.
FIG. 2 is a sectional view showing an installation example of the present invention.
FIG. 3 is a sectional view showing the use of a prior art blind rivet.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
Referring to FIGS. I and 2, a blind rivet in accordance with the present invention is generally comprised of a rivet 10, a stopper 20, and a shaft 30. The rivet 10 comprises a cylindrical body 11, a receiving hole 12 axially extending through the body 11, and a brim 13 outwardly projecting from the periphery of one end of the body 11. The stopper 20 comprises a first end 21, a cone 22, and a second end 23. The cone 22 is connected between the first end 21 and the second end 23. The first end 21 of the stopper 20 has a braking structure 24". According to the embodiment shown in FIG. 1, the braking structure 24 is comprised of two annular retaining flanges 241 respectively extended around the periphery of the first end 21 at different elevations. The shaft 30 comprises a shaft body 32 and
<Desc/Clms Page number 5>
a neck 31 at one end of the shaft body 32. The neck 31 of the shaft 30 is axially connected to the second end 23 of the stopper 20.
According to the embodiment shown in FIG. 1, the shaft 30 is formed integral with the second end 23 of the stopper 20.
Referring to FIGS. I and 2 again, when in use, the rivet body 11 of the rivet 10 is inserted through a respective through hole on each of the sheet members 40 to be fastened together, keeping the brim 13 stopped at one side of the stack of sheet members 40, and then the shaft 30 is inserted through the receiving hole 12 of the rivet 10 and pulled (by means of a rivet gun). When pulling the shaft 30, the cone 22 of the stopper 20 is forced to expand the receiving hole 12 of the rivet 10, and the braking structure 24 of the first end 21 of the stopper 20 is forced into engagement with the receiving hole 12, and therefore the sheet members 40 are firmly secured together by the deformed rivet 10. Continuously pulling the shaft 30 causes the neck 31 to break, enabling the shaft body 32 to be separated from the rivet 10 and the sheet members 40.
Referring to FIG. 2, after installation, the first end 21, cone 22 and second end 23 of the stopper 20 are positioned in the receiving hole 12 of the rivet 10 and kept from sight. Further, the first end 21 of the stopper 20 has a flat top face 211. Because the rivet 10 is a flexible member molded from plastics, it positively grasps the stopper 20.
<Desc/Clms Page number 6>
A prototype of blind rivet has been constructed with the features of FIGS. I and 2. The blind rivet functions smoothly to provide all of the features discussed earlier.
Although a particular embodiment of the invention has been described in detail for purposes of illustration, various modifications and enhancements may be made without departing from the scope of the invention. Accordingly, the invention is not to be limited except as by the appended claims.
Claims (8)
1. A blind rivet comprising: a rivet, said rivet comprising a cylindrical body, a receiving hole axially extending through said cylindrical body, and a brim outwardly projecting from the periphery of one end of said cylindrical body; a stopper, said stopper comprising a first end, a second end, and a cone connected between said first end and said second end, said first end comprising a braking structure adapted to stop said stopper in said receiving hole of said rivet; and a shaft connected to said stopper and inserted through the receiving hole of said rivet for pulling said stopper into said receiving hole of said rivet to expand said cylindrical body, said shaft comprising a shaft body inserted through the receiving hole of said rivet and a neck extended from one end of said shaft body and connected to the second end of said stopper.
2. The blind rivet as claimed in claim 1, wherein said braking structure of said stopper comprises at least one annular retaining flange extended around the periphery of said first end of said stopper.
3. The blind rivet as claimed in claim 2, wherein said braking structure of said stopper comprises two annular retaining flanges extended around the periphery of said first end of said
<Desc/Clms Page number 8>
stopper at different elevations.
4. The blind rivet as claimed in any preceding claim, wherein the first end, cone and second end of said stopper are engaged into the inside of the receiving hole of said rivet.
5. The blind rivet as claimed in claim 4, wherein said cone of said stopper is forced to expand said cylindrical body of said rivet and said braking structure is forced into engagement with said receiving hole of said rivet when pulling said stopper into said receiving hole of said rivet.
6. The blind rivet as claimed in any preceding claim, wherein said shaft is formed integrally with the second end of said stopper.
7. The blind rivet as claimed in any preceding claim, wherein said rivet is molded from plastics, and the first end of said stopper has a flat top face.
8. A blind rivet substantially as described herein with reference to Figures 1 and 2 of the accompanying drawings.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20109385U DE20109385U1 (en) | 2001-06-07 | 2001-06-07 | Blind rivet |
GB0113829A GB2376279A (en) | 2001-06-07 | 2001-06-07 | Blind rivet |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20109385U DE20109385U1 (en) | 2001-06-07 | 2001-06-07 | Blind rivet |
GB0113829A GB2376279A (en) | 2001-06-07 | 2001-06-07 | Blind rivet |
Publications (2)
Publication Number | Publication Date |
---|---|
GB0113829D0 GB0113829D0 (en) | 2001-08-01 |
GB2376279A true GB2376279A (en) | 2002-12-11 |
Family
ID=26057024
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0113829A Withdrawn GB2376279A (en) | 2001-06-07 | 2001-06-07 | Blind rivet |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE20109385U1 (en) |
GB (1) | GB2376279A (en) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB856808A (en) * | 1956-02-28 | 1960-12-21 | Hermann Heidenwolf | Improvements in or relating to riveted joints |
GB1478284A (en) * | 1974-09-04 | 1977-06-29 | Mecano Simmonds Gmbh | Blind rivet assembly |
GB1495592A (en) * | 1974-01-18 | 1977-12-21 | Raymond A | Securing members |
GB1518084A (en) * | 1974-08-16 | 1978-07-19 | Avdel Ltd | Rivet |
GB2054082A (en) * | 1979-07-20 | 1981-02-11 | Tucker Fasteners Ltd | Pull-type blind-riveting assemblies |
US4620825A (en) * | 1983-12-03 | 1986-11-04 | Usm Corporation | Pull-type blind-riveting assemblies |
EP0635647A1 (en) * | 1993-06-22 | 1995-01-25 | Yugenkaisha Shinjo Seisakusho | A mandrel for blind rivets and an apparatus for manufacturing the mandrel |
-
2001
- 2001-06-07 DE DE20109385U patent/DE20109385U1/en not_active Expired - Lifetime
- 2001-06-07 GB GB0113829A patent/GB2376279A/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB856808A (en) * | 1956-02-28 | 1960-12-21 | Hermann Heidenwolf | Improvements in or relating to riveted joints |
GB1495592A (en) * | 1974-01-18 | 1977-12-21 | Raymond A | Securing members |
GB1518084A (en) * | 1974-08-16 | 1978-07-19 | Avdel Ltd | Rivet |
GB1478284A (en) * | 1974-09-04 | 1977-06-29 | Mecano Simmonds Gmbh | Blind rivet assembly |
GB2054082A (en) * | 1979-07-20 | 1981-02-11 | Tucker Fasteners Ltd | Pull-type blind-riveting assemblies |
US4620825A (en) * | 1983-12-03 | 1986-11-04 | Usm Corporation | Pull-type blind-riveting assemblies |
EP0635647A1 (en) * | 1993-06-22 | 1995-01-25 | Yugenkaisha Shinjo Seisakusho | A mandrel for blind rivets and an apparatus for manufacturing the mandrel |
Also Published As
Publication number | Publication date |
---|---|
DE20109385U1 (en) | 2001-10-25 |
GB0113829D0 (en) | 2001-08-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |