JPS5594749A - Production of bolt for fastening of concrete mold and product thereof - Google Patents
Production of bolt for fastening of concrete mold and product thereofInfo
- Publication number
- JPS5594749A JPS5594749A JP256279A JP256279A JPS5594749A JP S5594749 A JPS5594749 A JP S5594749A JP 256279 A JP256279 A JP 256279A JP 256279 A JP256279 A JP 256279A JP S5594749 A JPS5594749 A JP S5594749A
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- blank
- blind hole
- press
- die
- 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.)
- Granted
Links
Landscapes
- Forging (AREA)
Abstract
PURPOSE: To form the bolt in which the inside diameter on the inlet side of the hollow part is smaller than that of the deeper part by giving drawing to the outside circumflrence of a hollow tubular body in the state where the guide pin protruding from the punch side is held inserted in the tubular body at the time of press-fitting the blank integrally formed with the tubular body and stem rod into a die.
CONSTITUTION: An iron-made round bar blank having been cut to the specified size is subsequently press-fitted into intermediate dies to integrally form the hollow tubular body 10b provided with a blind hole 10d and stem rod 10c. If at the time of heading the resultant blank 10' with the final die 5 the guide pin 9a protrusively provided to the front end of a punch 9 is press-fitted in the state being inserted into the blind hole, the step part 10f of the blank is held detained at the die hole step part 5b and therefore the upper half part of the hollow tubular body is drawn, due to which the inlet side 10d' of the blind hole is made smaller in diameter than the deep part 10d', whereby a boundary step part 10i is formed in the inside surface. Hence, internal threads 12 of high strength and accuracy may be provided only in the upper half part.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP256279A JPS5594749A (en) | 1979-01-11 | 1979-01-11 | Production of bolt for fastening of concrete mold and product thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP256279A JPS5594749A (en) | 1979-01-11 | 1979-01-11 | Production of bolt for fastening of concrete mold and product thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5594749A true JPS5594749A (en) | 1980-07-18 |
| JPS5623691B2 JPS5623691B2 (en) | 1981-06-02 |
Family
ID=11532808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP256279A Granted JPS5594749A (en) | 1979-01-11 | 1979-01-11 | Production of bolt for fastening of concrete mold and product thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5594749A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5065605A (en) * | 1989-05-17 | 1991-11-19 | Mitsuba Electric Mfg. Co., Ltd. | Method of forming shaped configuration at end of long element |
| US5211048A (en) * | 1989-05-17 | 1993-05-18 | Mitsuba Electric Mfg. Co., Ltd. | Method of forming shaped configuration at end of long element |
| WO2002044458A1 (en) * | 2000-12-01 | 2002-06-06 | Lg Electronics Inc. | Device for fastening tub to move drum type washing machine |
| JP2006105390A (en) * | 2004-09-08 | 2006-04-20 | Ntn Corp | Shaft member for fluid bearing device and its manufacturing method |
| KR101233303B1 (en) * | 2004-09-08 | 2013-02-14 | 후꾸이 뵤라 가부시끼가이샤 | Shaft member for fluid bearing device and method of producing the same |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141859A (en) * | 1977-05-17 | 1978-12-11 | Shinkou Rashi Yuugengaishiya | Positioning cap nut and manufacturing method thereof |
-
1979
- 1979-01-11 JP JP256279A patent/JPS5594749A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53141859A (en) * | 1977-05-17 | 1978-12-11 | Shinkou Rashi Yuugengaishiya | Positioning cap nut and manufacturing method thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5065605A (en) * | 1989-05-17 | 1991-11-19 | Mitsuba Electric Mfg. Co., Ltd. | Method of forming shaped configuration at end of long element |
| US5211048A (en) * | 1989-05-17 | 1993-05-18 | Mitsuba Electric Mfg. Co., Ltd. | Method of forming shaped configuration at end of long element |
| WO2002044458A1 (en) * | 2000-12-01 | 2002-06-06 | Lg Electronics Inc. | Device for fastening tub to move drum type washing machine |
| EP1346093A1 (en) * | 2000-12-01 | 2003-09-24 | Lg Electronics Inc. | Device for fastening tub to move drum type washing machine |
| EP1346093A4 (en) * | 2000-12-01 | 2004-03-17 | Lg Electronics Inc | Device for fastening tub to move drum type washing machine |
| US7441420B2 (en) | 2000-12-01 | 2008-10-28 | Lg Electronics Inc. | Device for fastening tub to move drum type washing machine |
| JP2006105390A (en) * | 2004-09-08 | 2006-04-20 | Ntn Corp | Shaft member for fluid bearing device and its manufacturing method |
| KR101233303B1 (en) * | 2004-09-08 | 2013-02-14 | 후꾸이 뵤라 가부시끼가이샤 | Shaft member for fluid bearing device and method of producing the same |
| US8387246B2 (en) | 2004-09-08 | 2013-03-05 | Ntn Corporation | Shaft member for fluid lubrication bearing apparatuses and a method for producing the same |
| US8678653B2 (en) | 2004-09-08 | 2014-03-25 | Ntn Corporation | Shaft member for fluid lubrication bearing apparatuses and a method for producing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5623691B2 (en) | 1981-06-02 |
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