JPS5647501A - Forming method of counterweight for elevator - Google Patents

Forming method of counterweight for elevator

Info

Publication number
JPS5647501A
JPS5647501A JP12382479A JP12382479A JPS5647501A JP S5647501 A JPS5647501 A JP S5647501A JP 12382479 A JP12382479 A JP 12382479A JP 12382479 A JP12382479 A JP 12382479A JP S5647501 A JPS5647501 A JP S5647501A
Authority
JP
Japan
Prior art keywords
weight
chips
thereafter
pore
oil pressure
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
JP12382479A
Other languages
Japanese (ja)
Inventor
Keiichi Oizumi
Tadashi Watabe
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP12382479A priority Critical patent/JPS5647501A/en
Publication of JPS5647501A publication Critical patent/JPS5647501A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B17/00—Hoistway equipment
    • B66B17/12—Counterpoises

Landscapes

  • Cage And Drive Apparatuses For Elevators (AREA)
  • Powder Metallurgy (AREA)

Abstract

PURPOSE: To obtain the counterweight for the elevator without cracking and callapsing by a method wherein chips are put into a weight receiving case placed in a pressure apparatus and, thereafter, molded by pressure.
CONSTITUTION: From a gap between a movable base 10 raised by oil pressure and a stationary forming mold 14, a weight receiving case 1 is mounted in a stepped part 7S in a forming pore 7H and, thereafter, the oil pressure is released to place said receiving case on the base 10. Subsequently, the chips 20 preliminarily measured in a required amount are thrown into the pore 7H through a chute 4. Thereafter, said chute 20 is moved and a ram 5 is lowered to pressurize the chips 20 in the pore 7H and the weight 3 packed in the case is molded. Subsequently, said ram 5 is maintained in that condition and the oil pressure is applied to a cylinder 15C to raise the forming mold 7 integrated with the base 10 along a punch 6 and the weight on the mold 14 is taken out.
COPYRIGHT: (C)1981,JPO&Japio
JP12382479A 1979-09-28 1979-09-28 Forming method of counterweight for elevator Pending JPS5647501A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12382479A JPS5647501A (en) 1979-09-28 1979-09-28 Forming method of counterweight for elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12382479A JPS5647501A (en) 1979-09-28 1979-09-28 Forming method of counterweight for elevator

Publications (1)

Publication Number Publication Date
JPS5647501A true JPS5647501A (en) 1981-04-30

Family

ID=14870262

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12382479A Pending JPS5647501A (en) 1979-09-28 1979-09-28 Forming method of counterweight for elevator

Country Status (1)

Country Link
JP (1) JPS5647501A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04114820U (en) * 1991-03-27 1992-10-09 いすゞ自動車株式会社 vehicle fuel tank

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04114820U (en) * 1991-03-27 1992-10-09 いすゞ自動車株式会社 vehicle fuel tank

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