JPS5540269A - Manufacturing method of tappet for internal combustion engine by press - Google Patents

Manufacturing method of tappet for internal combustion engine by press

Info

Publication number
JPS5540269A
JPS5540269A JP11375778A JP11375778A JPS5540269A JP S5540269 A JPS5540269 A JP S5540269A JP 11375778 A JP11375778 A JP 11375778A JP 11375778 A JP11375778 A JP 11375778A JP S5540269 A JPS5540269 A JP S5540269A
Authority
JP
Japan
Prior art keywords
cylinder
tappet
manufacturing
press
cut
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
Application number
JP11375778A
Other languages
Japanese (ja)
Inventor
Sadao Asai
Wataru Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Thompson Co Ltd
Suzuki Motor Corp
Original Assignee
Nippon Thompson Co Ltd
Suzuki Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Thompson Co Ltd, Suzuki Motor Corp filed Critical Nippon Thompson Co Ltd
Priority to JP11375778A priority Critical patent/JPS5540269A/en
Publication of JPS5540269A publication Critical patent/JPS5540269A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
    • F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
    • F01L1/12—Transmitting gear between valve drive and valve
    • F01L1/14—Tappets; Push rods
    • F01L1/143—Tappets; Push rods for use with overhead camshafts

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)

Abstract

PURPOSE: To shorten a process for manufacturing a tappet by press work and reduce the weight and cost of the tappet, by establishing a method of manufacturing the tappet.
CONSTITUTION: A thin steel sheet cut off to prescribed dimensions is shaped to a bottomed cylinder 1 by several press-drawing steps. A projection 3 whose top is flat is formed on the inside centaral part of the bottom of the cylinder 1. The cylinder 1 is cut to a prescribed height. The bottom 2 of the cylinder is slightly retracted in through several steps. The peripheral part of the bottom is so cut that slits 6 are provided. The bottomed cylinder 1 is carburized, quenched and tempered. The peripheral surface of the cylinder is ground. The other surface of the cylinder is barrel-finished. The tappet is thus completed.
COPYRIGHT: (C)1980,JPO&Japio
JP11375778A 1978-09-16 1978-09-16 Manufacturing method of tappet for internal combustion engine by press Pending JPS5540269A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11375778A JPS5540269A (en) 1978-09-16 1978-09-16 Manufacturing method of tappet for internal combustion engine by press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11375778A JPS5540269A (en) 1978-09-16 1978-09-16 Manufacturing method of tappet for internal combustion engine by press

Publications (1)

Publication Number Publication Date
JPS5540269A true JPS5540269A (en) 1980-03-21

Family

ID=14620358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11375778A Pending JPS5540269A (en) 1978-09-16 1978-09-16 Manufacturing method of tappet for internal combustion engine by press

Country Status (1)

Country Link
JP (1) JPS5540269A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829950A (en) * 1986-04-30 1989-05-16 Hitachi, Ltd. Valve lifter and method of producing the same
DE3820645A1 (en) * 1988-06-18 1989-12-21 Herzing & Schroth Gmbh & Co Cup-shaped housing
WO1995000749A1 (en) * 1993-06-23 1995-01-05 Nittan Valve Co., Ltd. Direct acting valve lifter for internal combustion engines
KR20010112169A (en) * 2001-11-13 2001-12-20 김창일 Method for manufacturing the valve tappet of automotive engine valve
DE10360467A1 (en) * 2003-12-22 2005-07-21 Trw Deutschland Gmbh Mechanical valve tappets e.g. for combustion engine, have load divider plate and cup for tappet body with cap where load divider plate on inside of cap of body lies is firmly connected
US10119607B2 (en) 2016-04-15 2018-11-06 Koyo Bearings North America Llc Follower mechanism
US11143059B2 (en) 2019-10-03 2021-10-12 Koyo Bearings North America Llc Tappet assembly with unground outer cup
US11149593B2 (en) 2019-10-03 2021-10-19 Koyo Bearings North America Llc Tappet assembly with formed anti-rotation alignment device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4829950A (en) * 1986-04-30 1989-05-16 Hitachi, Ltd. Valve lifter and method of producing the same
DE3820645A1 (en) * 1988-06-18 1989-12-21 Herzing & Schroth Gmbh & Co Cup-shaped housing
WO1995000749A1 (en) * 1993-06-23 1995-01-05 Nittan Valve Co., Ltd. Direct acting valve lifter for internal combustion engines
KR20010112169A (en) * 2001-11-13 2001-12-20 김창일 Method for manufacturing the valve tappet of automotive engine valve
DE10360467A1 (en) * 2003-12-22 2005-07-21 Trw Deutschland Gmbh Mechanical valve tappets e.g. for combustion engine, have load divider plate and cup for tappet body with cap where load divider plate on inside of cap of body lies is firmly connected
DE10360467B4 (en) * 2003-12-22 2011-11-10 Trw Deutschland Gmbh Mechanical valve lifter
US10119607B2 (en) 2016-04-15 2018-11-06 Koyo Bearings North America Llc Follower mechanism
US10385957B2 (en) 2016-04-15 2019-08-20 Koyo Bearings North America Llc Follower mechanism
US11143059B2 (en) 2019-10-03 2021-10-12 Koyo Bearings North America Llc Tappet assembly with unground outer cup
US11149593B2 (en) 2019-10-03 2021-10-19 Koyo Bearings North America Llc Tappet assembly with formed anti-rotation alignment device

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