US3767235A - Connecting means having a split collar - Google Patents

Connecting means having a split collar Download PDF

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Publication number
US3767235A
US3767235A US00167273A US3767235DA US3767235A US 3767235 A US3767235 A US 3767235A US 00167273 A US00167273 A US 00167273A US 3767235D A US3767235D A US 3767235DA US 3767235 A US3767235 A US 3767235A
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US
United States
Prior art keywords
collar
face
defining
notch
edge face
Prior art date
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Expired - Lifetime
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US00167273A
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English (en)
Inventor
A Pitner
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.)
FINANCIERE DES CARDANS Cie
Original Assignee
Nadella SA
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Filing date
Publication date
Application filed by Nadella SA filed Critical Nadella SA
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Publication of US3767235A publication Critical patent/US3767235A/en
Assigned to COMPAGNIE FINANCIERE DES CARDANS reassignment COMPAGNIE FINANCIERE DES CARDANS CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: JUNE 14, 1984 Assignors: NADELLA
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F16D1/00—Couplings for rigidly connecting two coaxial shafts or other movable machine elements
    • F16D1/06—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end
    • F16D1/08—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key
    • F16D1/0852—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft
    • F16D1/0864—Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hub; with hub and longitudinal key with radial clamping between the mating surfaces of the hub and shaft due to tangential loading of the hub, e.g. a split hub

Definitions

  • ABSTRACT Connecting means comprising a sheet metal split collar and two ear portions defining the split.
  • Each ear portion consists of a first part of the sheet metal bent over onto a second part of the sheet metal, the first part terminating in a first end face which for example prolongs the part-cylindrical inner face of the collar.
  • An aperture is drilled in each ear portion and the first part of at least one ear portion has a notch in its end face.
  • the purpose of the notch is to arrange that the burrs produced by drilling the corresponding aperture are outwardly offset from the end face of the first part.
  • the present invention relates to connecting means or couplings which are constructed by the forming of a sheet metal blank and comprise a split tubular collar resulting from a folding and rolling of the blank, the split being defined by two car portions which have a double thickness resulting from inwardly folded over parts at the ends of the blank, said ear portions having apertures which are provided for the passage of for example a fixing screw and open at least partly onto the edge face, adjacent the internal contour of the collar, of the portion of the sheet constituting the folded over part.
  • An object of the invention is to overcome such drawbacks.
  • the invention provides connecting means wherein the intersection between the edge face of at least one of the folded over parts and the face defining the hole in the corresponding ear is located in a middle part of said edge face which is set back and such that said intersection constitutes a curve located outside the inner contour of the collar.
  • the set-back part constitutes a receptacle for the burrs which 'may remain attached to the'surface of the aperture but do not reach the extension of the inner contour of the collar.
  • the two apertures are drilled by means of a single tool or drill and in one go, the arrangement just defined may be provided on only one of the ear portions.
  • the set-back middle part can have such shape and dimensions that it is completely set back from the drilling tool, so that the removal of material occurs only in the thickness of the ear portion which corresponds to the unfolded part, the burrs then being formed at the exit end of the drilled aperture in a part which is located in the set-back part of the folded over part.
  • the drilling time is of course correspondingly reduced.
  • FIG. 1 is an elevational view of a sheet metal blank for manufacturing a universal joint yoke
  • FIG. 2 is an end elevational view of the blank shown in FIG. 1;
  • FIG. 3 is a sectional view of the collar of a'universal joint yoke obtained from the blank shown in FIGS. 1 and 2;
  • FIG. 4 is an elevational view, partly in section along line 4-4 of FIG. 3;
  • FIG. 5 is a partial view of a modification of the blank shown in FIG. 1;
  • FIG. 6 is a view similar to FIG. 4 corresponding to the utilization of the blank shown in FIG. 5;
  • FIG. 7 is a sectional view of a modification of FIG. 2.
  • FIG. 1 shows a sheet metal blank A from which can be produced in accordance with the method disclosed in the US. Pat. No. 3,50l ,928 and the continuation-inpart 793,090, a yoke of a universal joint having two branches 1 and a split collar 2 (FIG. 3) resulting from bending and rolling the blank A, the slit 3 being defined by two ear portions 4 having two thicknesses of sheet 6, 7, produced by inwardly folding over end portions 8' of the blank A.
  • the two ear portions 4 are provided with apertures 11 for the passage of a screw which, by the tightening of a nut thereon fixes a shaft in position in the bore of the collar 2.
  • the apertures 11 open partly onto the face 7a of the folded over part 7 of the ear portion which defines the slit 3 and partly in the edge face 13 constituting the end edge of this folded over part.
  • this edge 13 be inscribed correctly in or prolong the inner contour 12, of the collar, the end portions 8 of the blank A are bent in such manner before blanking the blank as to make an angle a with the plane of the blank so that the edge face 13 make an angle 1r/2 a with the folded portions 8 of the blank (FIG. 2).
  • the end portions 8 have a middle notch 14 which extends from the edge face 13 and has an inner face 14a which is roughly parallel to the edge face 13, there being formed on each side of the notch 14 in the edge portion 13 two lateral portions 13a.
  • the notch 14 is deep but it has a width and depth which are such that in the manufactured yoke 5 (FIG. 3), the intersection between the cylindrical face defining each of the apertures 11 and the edge face 13 is located in the inner face 14a of the notch. In the absence of the notch 14, a geometric cylinder of the same diameter as the apertures 11 and extending through the apertures would intersect the inclined end edge faces 13a.
  • the face 14a constitutes a face which is set back with respect to the adjacent faces 13a which extend the inner contour 12 of the collar, so that, when the two apertures 11 are drilled by means of two opposed tools, the burrs 16 formed as the tools pass out of the metal are situtated outside the inner profile 12 of the collar, some of the burrs being in the inner face 14a of the notch 14 and the others on the plane face 7a of the folded-over part 7 of the ear portions 4.
  • the blank B shown in FIG. 5 has on its edge face 113 a deep notch 114 whose dimensions in width and depth are such that, in the finished product, the opening formed by the notch 114 has a profile wholly situated outside the cylindrical face 11 formed by the passage of the tool which, in this way, only removes material in the thickness or layer 6 of the unfolded part of the ear portion, as shown in FIG. 6.
  • the cavity thus formed in the notch 114 of the folded-over part 7 of the ear portion 4 therefore receives the burrs formed as the tool issues from the layer 6 of the ear portion.
  • the drilling time is reduced owing to the reduction in the length of drilling and also to-the fact that the aperture opens onto a surface perpendicular to the direction of drilling.
  • the width 1 of the end portion of the blank B is sufficient to ensure the required strength of the connecting means, both when producing the connecting means and utilizing the latter, as a function of the remaining dimensions for the lateral parts 113a.
  • the end edge face 213 of the blank is oblique and has a concave profile obtained, for example, by crushing the metal, so as to afford in the finished product a result equivalent to that of the bending of the end portions 8 shown in FIGS. 1 and 2, and also has locally a part corresponding to the notch 14 obtained by the same method.
  • Connecting means comprising a sheet metal member in the shape of a part tubular collar having a partannular inner face extending about an axis and comprising two ear portions defining a throughway radially and longitudinally extending split in the collar, each ear portion consisting of an end portion of the member having an outwardly extending outer part and an inner part which extends inwardly in alongside and adjoining relation to the outer part and terminates in a first end edge face adjoining the inner peripheral face of the collar, said first end edge face being inclined relative to said inner part so as to form a substantially contiguous peripheral continuation of said inner peripheral face of the collar, said inner parts having opposed lateral faces defining said split, means defining afirst circular cylindrical throughway drilled aperture in each outer part, said first apertures being coaxial, means defining a second throughway aperture in each inner part coaxial with the first apertures for the passage of collar fixing means, said means defining said second aperture of one of said inner parts corresponding to one of said ear portions comprising a throughway notch
  • Connecting means comprising a sheet metal member in the shape of a part-tubular collar having a partannular inner face and comprising two ear portions defining a throughway radially and longitudinally extending split in the collar, each ear portion consisting of an end portion of the member having an outwardly extending outer part and an inner part which extends inwardly in alongside and adjoining relation to the outer part and terminates in a first end edge face adjoining the inner face of the collar, said inner parts having opposed lateral faces defining said split, a throughway notch in at least one of said inner parts and having a second edge face outwardly set-back from said first edge face radially of the collar and a cylindrical face defining a throughway aperture for receiving fixing means in each ear portion and intersecting at least partly said second edge face and defining an intersection edge located outwardly set-back from said first edge face.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Clamps And Clips (AREA)
  • Forging (AREA)
  • Food-Manufacturing Devices (AREA)
  • Metal Rolling (AREA)
US00167273A 1970-08-05 1971-07-29 Connecting means having a split collar Expired - Lifetime US3767235A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7028886A FR2102484A5 (enrdf_load_stackoverflow) 1970-08-05 1970-08-05

Publications (1)

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US3767235A true US3767235A (en) 1973-10-23

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ID=9059823

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US00167273A Expired - Lifetime US3767235A (en) 1970-08-05 1971-07-29 Connecting means having a split collar

Country Status (7)

Country Link
US (1) US3767235A (enrdf_load_stackoverflow)
JP (1) JPS5648724B1 (enrdf_load_stackoverflow)
BR (1) BR7105024D0 (enrdf_load_stackoverflow)
CA (1) CA959281A (enrdf_load_stackoverflow)
ES (1) ES200692Y (enrdf_load_stackoverflow)
FR (1) FR2102484A5 (enrdf_load_stackoverflow)
GB (1) GB1360629A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772153A (en) * 1986-07-01 1988-09-20 Huang Gwo Ming Strong tightening device used for bicycle's frame joint
US20090148232A1 (en) * 2005-02-09 2009-06-11 Stryker Trauma Sa External fixation clamp

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195544A (en) * 1981-05-27 1982-12-01 Aida Eng Ltd Manufacture of universal joint
JP2534772B2 (ja) * 1989-07-07 1996-09-18 日本精工株式会社 自在継手のヨ−クの製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1785870A (en) * 1926-08-09 1930-12-23 Gemmer Mfg Co Coupling
US3501928A (en) * 1966-11-10 1970-03-24 Nadella Universal joints

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1208006A (en) * 1916-06-05 1916-12-12 Jan Rembiszewski Collapsible life-raft.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1785870A (en) * 1926-08-09 1930-12-23 Gemmer Mfg Co Coupling
US3501928A (en) * 1966-11-10 1970-03-24 Nadella Universal joints

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4772153A (en) * 1986-07-01 1988-09-20 Huang Gwo Ming Strong tightening device used for bicycle's frame joint
US20090148232A1 (en) * 2005-02-09 2009-06-11 Stryker Trauma Sa External fixation clamp
US7806623B2 (en) * 2005-02-09 2010-10-05 Stryker Trauma S.A. External fixation clamp

Also Published As

Publication number Publication date
FR2102484A5 (enrdf_load_stackoverflow) 1972-04-07
CA959281A (en) 1974-12-17
GB1360629A (en) 1974-07-17
ES200692U (es) 1975-09-01
ES200692Y (es) 1976-01-16
JPS5648724B1 (enrdf_load_stackoverflow) 1981-11-17
BR7105024D0 (pt) 1973-03-29

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Owner name: COMPAGNIE FINANCIERE DES CARDANS

Free format text: CHANGE OF NAME;ASSIGNOR:NADELLA;REEL/FRAME:004610/0184

Effective date: 19840924