GB1482610A - Expanding mandrel - Google Patents

Expanding mandrel

Info

Publication number
GB1482610A
GB1482610A GB36994/74A GB3699474A GB1482610A GB 1482610 A GB1482610 A GB 1482610A GB 36994/74 A GB36994/74 A GB 36994/74A GB 3699474 A GB3699474 A GB 3699474A GB 1482610 A GB1482610 A GB 1482610A
Authority
GB
United Kingdom
Prior art keywords
electromagnet
ring
plate
elastic ring
drive plate
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
Application number
GB36994/74A
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.)
Lhomme SA
Original Assignee
Lhomme SA
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 Lhomme SA filed Critical Lhomme SA
Priority to GB36994/74A priority Critical patent/GB1482610A/en
Publication of GB1482610A publication Critical patent/GB1482610A/en
Expired legal-status Critical Current

Links

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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D7/00—Slip couplings, e.g. slipping on overload, for absorbing shock
    • F16D7/02—Slip couplings, e.g. slipping on overload, for absorbing shock of the friction type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/24—Constructional details adjustable in configuration, e.g. expansible
    • B65H75/242—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages
    • B65H75/248—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction
    • B65H75/2484—Expansible spindles, mandrels or chucks, e.g. for securing or releasing cores, holders or packages expansion caused by actuator movable in axial direction movable actuator including wedge-like or lobed member
    • 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
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D27/00—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor
    • F16D27/02—Magnetically- or electrically- actuated clutches; Control or electric circuits therefor with electromagnets incorporated in the clutch, i.e. with collecting rings

Abstract

1482610 Expandable mandrels LHOMME SA 22 Aug 1974 36994/74 Heading F2U [Also in Division D1] An expandable mandrel for securing a tube A for winding and unwinding strip or thread comprises an elastic ring 8 having a cylindrical gripping surface and an inner conical surface which bears on a paired bearing surface of a rotatable drive plate 3, an electromagnet determining, as required, a relative axial slip of the ring on the plate. As shown the drive plate 3 forms the electromagnet having its winding 3d supplied with current through carbon contacts 6 on a fixed support arm 2, the plate being driven by a chain or a V-belt 7. The elastic ring may be a single piece split ring or a segmented ring housing coiled tension springs or a spring band 10. In the relaxed position shown the elastic ring rests against a circlip 9. When the electromagnet is activated the ring is moved axially away from the circlip to expand into gripping engagement with the tube A. In another embodiment, Fig. 5 (not shown) the drive plate 14 is moved axially by Belleville washers (22) to expand the elastic ring (16) into gripping engagement; for disengagement, the plate is drawn axially against the pressure of the washers by means of an electromagnet (20) in a fixed part (13). If desired, the conical surfaces may be reversed so that actuation of the electromagnet will disengage (in Fig. 1) and engage (in Fig. 5).
GB36994/74A 1974-08-22 1974-08-22 Expanding mandrel Expired GB1482610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB36994/74A GB1482610A (en) 1974-08-22 1974-08-22 Expanding mandrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB36994/74A GB1482610A (en) 1974-08-22 1974-08-22 Expanding mandrel

Publications (1)

Publication Number Publication Date
GB1482610A true GB1482610A (en) 1977-08-10

Family

ID=10392862

Family Applications (1)

Application Number Title Priority Date Filing Date
GB36994/74A Expired GB1482610A (en) 1974-08-22 1974-08-22 Expanding mandrel

Country Status (1)

Country Link
GB (1) GB1482610A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9638605B2 (en) 2015-07-30 2017-05-02 Toyota Motor Engineering & Manufacturing North America, Inc. Adapter assemblies including engagement assemblies

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9638605B2 (en) 2015-07-30 2017-05-02 Toyota Motor Engineering & Manufacturing North America, Inc. Adapter assemblies including engagement assemblies

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee