FR2720675B1 - Injection molding mold of a cylindrical product with internal gear. - Google Patents

Injection molding mold of a cylindrical product with internal gear.

Info

Publication number
FR2720675B1
FR2720675B1 FR9508101A FR9508101A FR2720675B1 FR 2720675 B1 FR2720675 B1 FR 2720675B1 FR 9508101 A FR9508101 A FR 9508101A FR 9508101 A FR9508101 A FR 9508101A FR 2720675 B1 FR2720675 B1 FR 2720675B1
Authority
FR
France
Prior art keywords
injection molding
internal gear
molding mold
cylindrical product
cylindrical
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.)
Expired - Fee Related
Application number
FR9508101A
Other languages
French (fr)
Other versions
FR2720675A1 (en
Inventor
Hiroshi Nomura
Takamitsu Sasaki
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.)
Pentax Corp
Original Assignee
Asahi Kogaku Kogyo Co 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
Priority claimed from JP32048193A external-priority patent/JP3340543B2/en
Priority claimed from JP2163294A external-priority patent/JPH07227886A/en
Priority claimed from JP3266494A external-priority patent/JPH07243512A/en
Priority claimed from JP3266394A external-priority patent/JP3490758B2/en
Priority claimed from FR9415331A external-priority patent/FR2715705B1/en
Application filed by Asahi Kogaku Kogyo Co Ltd filed Critical Asahi Kogaku Kogyo Co Ltd
Publication of FR2720675A1 publication Critical patent/FR2720675A1/en
Application granted granted Critical
Publication of FR2720675B1 publication Critical patent/FR2720675B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2618—Moulds having screw-threaded mould walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/26—Moulds
    • B29C45/2681—Moulds with rotatable mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/40—Removing or ejecting moulded articles
    • B29C45/44—Removing or ejecting moulded articles for undercut articles
    • B29C45/4421—Removing or ejecting moulded articles for undercut articles using expansible or collapsible cores
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
    • G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
FR9508101A 1993-12-20 1995-07-05 Injection molding mold of a cylindrical product with internal gear. Expired - Fee Related FR2720675B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP32048193A JP3340543B2 (en) 1993-12-20 1993-12-20 Cylindrical molded body, mold for cylindrical molded body, and method of manufacturing the same
JP2163294A JPH07227886A (en) 1994-02-18 1994-02-18 Injection mold equipped with inner slide core
JP3266494A JPH07243512A (en) 1994-03-02 1994-03-02 Internal gear
JP3266394A JP3490758B2 (en) 1994-03-02 1994-03-02 Internal gear and its injection mold
FR9415331A FR2715705B1 (en) 1993-12-20 1994-12-20 Molded cylindrical product with molded internal gear and manufacturing process for forming such a product.

Publications (2)

Publication Number Publication Date
FR2720675A1 FR2720675A1 (en) 1995-12-08
FR2720675B1 true FR2720675B1 (en) 1997-10-17

Family

ID=27515601

Family Applications (2)

Application Number Title Priority Date Filing Date
FR9508101A Expired - Fee Related FR2720675B1 (en) 1993-12-20 1995-07-05 Injection molding mold of a cylindrical product with internal gear.
FR9508102A Expired - Fee Related FR2720463B1 (en) 1993-12-20 1995-07-05 Internal gear for cylindrical product, in particular zoom lens barrel.

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR9508102A Expired - Fee Related FR2720463B1 (en) 1993-12-20 1995-07-05 Internal gear for cylindrical product, in particular zoom lens barrel.

Country Status (1)

Country Link
FR (2) FR2720675B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262918A (en) * 2016-12-30 2018-07-10 广东联塑科技实业有限公司 A kind of electric smelting saddle type leads directly to mold and its injection moulding process

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110566655A (en) * 2019-10-10 2019-12-13 河南柴油机重工有限责任公司 Connecting structure of intermediate duplicate gear of engine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3888568A (en) * 1974-06-20 1975-06-10 Polaroid Corp Multi-element lens assembly
DE2623392A1 (en) * 1976-05-25 1977-12-08 Karl Hehl MOLD CLAMPING UNIT OF A PLASTIC INJECTION MOLDING MACHINE
GB2205522A (en) * 1987-06-09 1988-12-14 Mono Pumps Ltd Moulding an article having an internal helical gear formation thereon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108262918A (en) * 2016-12-30 2018-07-10 广东联塑科技实业有限公司 A kind of electric smelting saddle type leads directly to mold and its injection moulding process

Also Published As

Publication number Publication date
FR2720463A1 (en) 1995-12-01
FR2720463B1 (en) 1997-09-12
FR2720675A1 (en) 1995-12-08

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Legal Events

Date Code Title Description
ST Notification of lapse

Effective date: 20070831