CA2309851A1 - Two sided piloted weld nut - Google Patents
Two sided piloted weld nut Download PDFInfo
- Publication number
- CA2309851A1 CA2309851A1 CA 2309851 CA2309851A CA2309851A1 CA 2309851 A1 CA2309851 A1 CA 2309851A1 CA 2309851 CA2309851 CA 2309851 CA 2309851 A CA2309851 A CA 2309851A CA 2309851 A1 CA2309851 A1 CA 2309851A1
- Authority
- CA
- Canada
- Prior art keywords
- nut
- weld
- projections
- pilot
- weld nut
- 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.)
- Abandoned
Links
- 239000002184 metal Substances 0.000 claims description 9
- 239000007769 metal material Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 1
- 230000035515 penetration 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
- F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
- F16B37/061—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of welding
Abstract
A two sided piloted weld nut enables the nut to be welded either way. It can be used with a nut feeder, or to increase production on a manual welding process.
These nuts will eliminate the root cause of common nuts being welded upside down.
These nuts will eliminate the root cause of common nuts being welded upside down.
Description
1. "This invention relates to piloted weld nuts or the like, intended to be positioned on a metal plate or sheet and welded to enable a member to be fastened."
2. "It is common for all piloted weld nuts to have one flat surface that contacts with an electrode and the opposing side to have a locating pilot and projections that will enable the nut to be welded to a metal sheet. When the electrode contacts the flat surface an electric current is sent through the nut to the point of greatest resistance which is the opposing end contacting with the metal sheet. With the pilot located in the hole in the sheet, the weld projections contacting the surface will bind to the metal. This will fasten the nut to the sheet. This type of nut can be inefficient when it comes to fast production welding. Often nuts will be welded upside down, binding only until the part cools. This is a common problem in the Automotive industry, usually caused from operator error or nut feeders that fail to detect this.
Also the large flat surface of the nut that contacts with the electrode can create expulsion and loss of heat."
2. "It is common for all piloted weld nuts to have one flat surface that contacts with an electrode and the opposing side to have a locating pilot and projections that will enable the nut to be welded to a metal sheet. When the electrode contacts the flat surface an electric current is sent through the nut to the point of greatest resistance which is the opposing end contacting with the metal sheet. With the pilot located in the hole in the sheet, the weld projections contacting the surface will bind to the metal. This will fasten the nut to the sheet. This type of nut can be inefficient when it comes to fast production welding. Often nuts will be welded upside down, binding only until the part cools. This is a common problem in the Automotive industry, usually caused from operator error or nut feeders that fail to detect this.
Also the large flat surface of the nut that contacts with the electrode can create expulsion and loss of heat."
3. "I have found these disadvantages can be overcome by duplicating the pilot and weld projections on both sides of the nut. With the pilot member being of greater distance from the body than the weld projections the electrode will now make contact with the pilot. The smaller surface area of the pilot creates a more concentrated current flow and the weld projections on the opposing end will bind to the metal sheet, usually with a deeper weld penetration than an ordinary weld nut.
The advantage of the two sided weld nut is the fact that it will eliminate the root cause of upside down nuts being welded, lowering the cost of rejected material. With the two sided piloted weld nuts you can increase production. Operators will not have to be cautious of which way they are placing the nut, also you can automate by use of a nut feeder with relative ease."
The advantage of the two sided weld nut is the fact that it will eliminate the root cause of upside down nuts being welded, lowering the cost of rejected material. With the two sided piloted weld nuts you can increase production. Operators will not have to be cautious of which way they are placing the nut, also you can automate by use of a nut feeder with relative ease."
4. In the drawings which illustrate the embodiments of the invention. Figure 1 is a perspective view of a typical square weld nut with pilots and projections extending both top and bottom of the nut. Figure 2 is a top view of this embodiment.
Figures 3 and 4 are side views of this embodiment. Figure 5 is a perspective view of a typical hex shaped weld nut with pilot and weld projections on both top and bottom. Figure 6 is the top view of this embodiment. Figure 7 is the side view of this embodiment. Figure 8 shows the weld nut example in Figures 5, 6, 7 demonstrating the application and process as a sectional drawing including the electrode 4, base 5 and the metal sheet 3 that the nut is welded to.
The weld nuts shown consists of two pilots l,on the top and bottom of the nut. One end of the pilot 1, will locate in a hole in the metal sheet 3, on the opposing end the pilot 1 will contact with the electrode 4. When an electric current is sent through the electrode 4 and through the weld nut the resistance between the weld projections 2 and the metal sheet 3 create the weld.
Figures 3 and 4 are side views of this embodiment. Figure 5 is a perspective view of a typical hex shaped weld nut with pilot and weld projections on both top and bottom. Figure 6 is the top view of this embodiment. Figure 7 is the side view of this embodiment. Figure 8 shows the weld nut example in Figures 5, 6, 7 demonstrating the application and process as a sectional drawing including the electrode 4, base 5 and the metal sheet 3 that the nut is welded to.
The weld nuts shown consists of two pilots l,on the top and bottom of the nut. One end of the pilot 1, will locate in a hole in the metal sheet 3, on the opposing end the pilot 1 will contact with the electrode 4. When an electric current is sent through the electrode 4 and through the weld nut the resistance between the weld projections 2 and the metal sheet 3 create the weld.
Claims (3)
1. A weld nut or the like including all shapes and projection patterns having a metal body with said projections extending outwardly from two faces. Having pilot members also extending outwardly on both faces, being of greater distance from the body than the said projections.
2. A weld nut or the like as stated in claim 1, having pilot portions with a flat surface of enough area to make contact with an electrode ensuring a good current flow. Two surfaces of the pilots to be parallel and concentric of the same width, diameter and height on both sides of the nut. Weld projections are to 6e mirrored and duplicated on both sides of the nut in pattern, width, length and height.
3. A weld nut or the like as stated in claim 1 and 2 in which the body, pilot and projections are made from the same metallic material.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2309851 CA2309851A1 (en) | 2000-05-26 | 2000-05-26 | Two sided piloted weld nut |
| CN 00819663 CN1454295A (en) | 2000-05-26 | 2000-08-15 | Two sided piloted weld nut |
| AU2000266742A AU2000266742A1 (en) | 2000-05-26 | 2000-08-15 | Two sided piloted weld nut |
| MXPA02012610A MXPA02012610A (en) | 2000-05-26 | 2000-08-15 | Two sided piloted weld nut. |
| EP00954189A EP1285174A1 (en) | 2000-05-26 | 2000-08-15 | Two sided piloted weld nut |
| PCT/CA2000/000928 WO2001090588A1 (en) | 2000-05-26 | 2000-08-15 | Two sided piloted weld nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2309851 CA2309851A1 (en) | 2000-05-26 | 2000-05-26 | Two sided piloted weld nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2309851A1 true CA2309851A1 (en) | 2001-11-26 |
Family
ID=4166278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2309851 Abandoned CA2309851A1 (en) | 2000-05-26 | 2000-05-26 | Two sided piloted weld nut |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1285174A1 (en) |
| CN (1) | CN1454295A (en) |
| AU (1) | AU2000266742A1 (en) |
| CA (1) | CA2309851A1 (en) |
| MX (1) | MXPA02012610A (en) |
| WO (1) | WO2001090588A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1330886C (en) * | 2002-04-05 | 2007-08-08 | 太田洋一 | Welding nut |
| KR20040020111A (en) * | 2002-08-29 | 2004-03-09 | 현대자동차주식회사 | Weld nut |
| CN104028889B (en) * | 2014-06-17 | 2017-01-04 | 上海中远川崎重工钢结构有限公司 | A kind of electroslag welding welding guides fixture and manufacture method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1069429B (en) * | 1956-02-03 | |||
| US3045736A (en) * | 1958-06-23 | 1962-07-24 | Earl E Howe | Pilot weld nut and method of making the same |
| US5533850A (en) * | 1993-12-21 | 1996-07-09 | Nissan Motor Co., Ltd. | Welding nut |
-
2000
- 2000-05-26 CA CA 2309851 patent/CA2309851A1/en not_active Abandoned
- 2000-08-15 AU AU2000266742A patent/AU2000266742A1/en not_active Abandoned
- 2000-08-15 MX MXPA02012610A patent/MXPA02012610A/en unknown
- 2000-08-15 EP EP00954189A patent/EP1285174A1/en not_active Withdrawn
- 2000-08-15 CN CN 00819663 patent/CN1454295A/en active Pending
- 2000-08-15 WO PCT/CA2000/000928 patent/WO2001090588A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1454295A (en) | 2003-11-05 |
| WO2001090588A1 (en) | 2001-11-29 |
| EP1285174A1 (en) | 2003-02-26 |
| MXPA02012610A (en) | 2003-04-10 |
| AU2000266742A1 (en) | 2001-12-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |