US2930114A - Apparatus for assembling open retaining rings on grooved shafts, pins or the like - Google Patents

Apparatus for assembling open retaining rings on grooved shafts, pins or the like Download PDF

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Publication number
US2930114A
US2930114A US643383A US64338357A US2930114A US 2930114 A US2930114 A US 2930114A US 643383 A US643383 A US 643383A US 64338357 A US64338357 A US 64338357A US 2930114 A US2930114 A US 2930114A
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US
United States
Prior art keywords
ring
applicator
rings
recess
stack
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 - Lifetime
Application number
US643383A
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English (en)
Inventor
Erdmann Hans
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.)
Waldes Kohinoor Inc
Original Assignee
Waldes Kohinoor Inc
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 Waldes Kohinoor Inc filed Critical Waldes Kohinoor Inc
Priority to US643383A priority Critical patent/US2930114A/en
Priority to DEW22675A priority patent/DE1186810B/de
Application granted granted Critical
Publication of US2930114A publication Critical patent/US2930114A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/08—Machines for placing washers, circlips, or the like on bolts or other members
    • B23P19/084—Machines for placing washers, circlips, or the like on bolts or other members for placing resilient or flexible rings, e.g. O-rings, circlips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
    • B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
    • B25B27/20—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same inserting or withdrawing split pins or circlips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53287—Means to place traveler on ring or ring on bobbin of a textile machine
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53478—Means to assemble or disassemble with magazine supply
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53613—Spring applier or remover
    • Y10T29/5363—Circular spring

Definitions

  • a main object of the invention is the provision of a novel retaining ring applicator blade for use in a combination ring dispensing and applying tool of the stated character, Whose construction andarrangement is such that it is. particularly effective for use with V the larger-size rings while at the same time his also use ful in connection with either or both the smaller and medium sized rings.
  • the invention contemplates and, aims to provide an applicator blade 'as aforesaid having rigid rather than resilient-jaw construction, and which at the same time is "so constructed, and arranged that itswor-k- 'ing end is adapted when actuated radially toward the shaft or pin on which ring assembly is to be effected to ice movement toward and away from the workpiece, and by simple yet efiective means for actuating catorsin unison.
  • Fig. 1 is a front elevation, partly in section, of the improved dispenser-applicator of the invention, with the applicator blades intheir retracted or inactive position;
  • Fig. 2 is a similar view but illustrating the applicator blades in the position which they occupy when they have just completed simultaneous assembly of apair of retaining rings in the spaced grooves of shaft, pin or the like;
  • V Fig. 3 is a broken-away perspective view showing the constructional details of the free or w orking end of an improved rigid applicator bladeas herein proposed.
  • the invention will be deaworkpiece such as a scribed inconnection with a plural applicator-blade type of combination ring dispensing and applying tool, wherein two applicator blades are disposed generally parallel to one another and'symmetrically to the sides of a vertical center line and with their working ends directed downwardly, and which further incorporates manually-actuabie means for reciprocatingsaid applicator blade in 'un'ison toward and away from a workpiece.
  • Figs. 1 and 2 wherein reference numeral 10 designates a relatively elongated fiatbase member mountn its entra p r upright standard. -.1 s best seen in Fig. 2, an operating lever 12 is pivotally connected at its one end as by a horizontal pivot pin 13 to anupper point on the standard whereby it may swing Fina. vertical plane disposed forwardly of said standard.
  • the base 10 mounts a pair of pivot blocks 17, 18 serving as fulcrums for the outer ends of straddle thesame as withthe prior resilient-jaw'appli- I tenor; and that is is moreover capable ofacicommodating vide an improved applicator of a fypeflending itself.
  • Still another object of the invention is the provision of an improved combination ring dispensing and applyingitool employing two applicator blades as aforesaid,
  • the applicators are mounted for a pair of swing'bars 20, 21 which incline upwardly and inwardly towards one another.
  • the aforesaid swing bars are connected to fthe'outer ends of the cross head 15 as by pin and slot connections 22a, 22b, and accordingly the swing bars can move towards and away from one another in unison upon" lowering and raising movement being applied to the cross head.
  • a pair of plate brackets '23, 24 which illustratively have roughly right triangular formation and are arranged with their respective bases disposed :in adjacency and in spaced parallel relation with respect to one another, and syrnmetrically to the sides of the vertical centerline of the tool which extends through the upright standard 11;.
  • the applicator. blades 25, 2 6' are normally maintained in their raised or inactive position (as by spring means not shown) above a workpiece supportingfixture which, as shown, comprisesamoun irg block 28 and a vise 29 supported on the, top entree Piaten'ted Mar. 29, 199
  • each stack rod 32 comprises a spring strip or rail of width corresponding to the inner- 'edge diameter of said retaining rings which, as illustrated in Fig. 3, are of the open type usually provided with a middle and two end lugs or protrusions.
  • Such rings may accordingly be threaded onto a stack rod 32 for movement therealong but are normally restrained against separation from the stack rod by the hold-on engagement which the inner edges of the end lugs exercize on said stack rod as illustrated. It will also be seen that the end portion of each stack rod 32 adjacent its applicator blade is free of any connection either with the edge of its carrying bracket (which latter is relieved or cut away as shown) or with the applicator blade. Thus, by properly predetermining the length of the stack rod, its free end may fiex in upward direction to its 'Fig. 2 position as will be later explained.
  • each stack rod is provided with a slide block 34 which is biased to move in ring-feeding direction by spring means contained in a wind-up reel 35 for a length of tape 36 connected to the slide block.
  • Both the aforesaid stack rod mounting and ring feed means are similar to that employed in a form of combination ring dispensing and applying means disclosed and claimed in my copending application Serial No. 538,041, filed October 3, 1955, now abandoned.
  • Fig. 3 illustrating the working end thereof on a greatly enlarged scale.
  • the working end of the present applicator blade is of rigid construction throughout. More particularly, its working end is provided in its end edge with a simple cut-out 40 having a semi-circular closed end of width substantially equal to that of the diameter of the shaft or pin on which ring assembly is to be effected.
  • Said working end is also formed with a deep recess 41 countersunk into its relatively upper face and which extends about said cut-out 40, and with a communicating shallow recess 42, of which the deep recess like the cut-out 40 opens through the end edge of the blade, and the shallow recess is set back from the deep recess, being separated therefrom by a semi-circular step or shoulder 43, of height corresponding to the axial thickness of a single ring R. Since the applicator blade is of rigid construction, the width of both recesses41, 42 is made slightly larger than that of the outer-edge-diameter of the rings R and it accordingly follows'that the diameter of the semi-circular are on which the step 43 extends corresponds substantially to the diameter of said rings R.
  • each stack rod In the normal raised or retracted position of the applicator blades, the cut-out 40 and the deep recess 41 of each are aligned with the free end of the associated stack rod. Accordingly, the endmost ring R of the ring stack maintained on the corresponding stack rod 32 disposes itself in recess 41 in assembly-ready position therein, being held against the floor of said recess by the force of the spring acting on the slide block 34. At this point it is explained that the length of each stack rod is such that its free end is spaced from the bottom of the aligning recess 41 a distance which is slightly greater than the axial thickness of a single ring, and hence slightly greater also than the height of the step 43.
  • Ring alignment as aforesaid is most advisable since it insures that said next endmost ring of the stack always moves with certainty into the forward, shallow recess 41 asthe stack rod returns to its normal position following each ring transfer or assembly operation, thus to condition the device for the next ring assembly operation.
  • said recess sidewalls 45, 46 curve inwardly so asto provide inward projections or lips 47, 48 which reach towards one another yet are spaced at least the width of the cut-out 40, thus to enable the working end of said blade to straddle the shaft in the assembly operations as aforesaid.
  • the inward projections or lips 47, 48 are undercut with slots 47a, 48a which together provide a channel through the lips of depth corresponding to the axial thickness of one ring and which is aligned with the ring cavity of said recess 41.
  • the endmost ring of the stack contained in the recess 41 and seating against the floor thereof may move through the channel just as if the aforesaid projecting lips 47, 48 were not present.
  • said lips 47, 48 come into play and positively prevent the stuck-on ring from moving out of the recess 41 with the endmost ring and perhaps jamming in the shaft groove.
  • This feature is of particular advantage in insuring against accidental disarrangement of one or more of the endmost rings in the recess structure, and also in insuring that an applicator blade can be freely backed off the shaft following completion of the assembly of the endmost ring of the stack in its groove.
  • the rings of the stack next adjacent said, endmost rings retract into the shallow recesses 42 of the applicator blades as..perrnitted by the flexibility of the end portion of the stack rods, wherein they are supported on thevfloor of said recess, and thus the next higher rings of the stack in no wise interfere with applicator-blade lowering movement.
  • the applicator blades and associated parts return to their Fig. 1 position under the urge of retracting springs (not shown).
  • the applicator blades are enabled to freely back off from the workpiece without any possibility of this retracting movement being impeded as. by a second ring secured by friction or jamming to' the assembled ring.
  • a mounting member for holding a plurality of the rings to be assembled in stack formation
  • a stack rod for holding a plurality of the rings to be assembled in stack formation
  • an applicator blade immovably affixed to said mounting member and being disposed adjacent to and substantially at a right angle to the free'end of said stack rod and having a working end of rigid construction throughout, said working end being provided with a shaft accommodating cut-out which opens through its free end edge and has width slightly greater than the diameter of said shaft thereby enabling said working end to fork a shaft on which ring assembly is to be effected, said working end having in its face disposed towards said stack rod first-and second ring recesses, of which said second recess is set back from said first recess
  • said working end of the applicator :blade also including ring-aligning'means for maintaining alignment of the rings of the stack next adjacent the endmost ring when the free end of the stack rodis flexed rearwardly with movement of the applicator blade against theshaft, means urging the rings of the stack towards the applicator blade thereby normally topress the endmost ring of the stack to an assemblyereadiness position against I the floor of said first recess and similarly to press the next endmost ring against the floor of the second recess when said latter ring is shifted thereinto with rearward flexing of the free end of the stack rod as aforesaid, and means for actuating said mounting member and thereby the applicator blade bodily toward and away from said shaft,.the construction and arrangement being such that in moving toward said shaft the applicator blade, operating through said step, pushes the
  • the working end of the applicator blade terminates forwardly in inwardly directed lips which are spaced from one another a distance less than the diameterof the retaining rings being assembled and are further spaced above the floor of said firstrecess a distance slightly greater than the axial thickness of one of said rings thereby to provide a ring-opening in the lips through a which but a single ring may move from said first recess during the course of each ring, assembly operation.
  • said ring aligning means comprises rearwardly extending, parallel, upright side walls disposed along the side edges of the working end of said applicator blade and defining the side walls of said recesses, said sidewalls being spaced apart a distance substantially equal to'the diameter of the retaining rings received in and moving through said recesses.
  • an applicator comprising a blade-like member having a rigid working end provided with a shaft-receiving cut-out in its end edge of width slightly larger than the diameter of the shaft on which ring assembly is to be effected, said working end being provided in one face thereof with two communicating ring-receiving recesses of width slightly greater than the diameter of the rings to be assembled and along its side edges with parallel upright walls defining the sidewalls of the recesses and serving to maintain alignment of therings moving between said recesses, the forward one of said recesses opening through said end edge and extending about the cut-out and being deeper than the rearward, recess by an amount substantially equaling the thickness of one of said rings, said recesses'being separated by a step forming a ring push-shoulder adapted '7 grooves of shafts and the like, an applicator comprising a blade-like member having a rigid working end provided with a shaft-re

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Automatic Assembly (AREA)
US643383A 1957-03-01 1957-03-01 Apparatus for assembling open retaining rings on grooved shafts, pins or the like Expired - Lifetime US2930114A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US643383A US2930114A (en) 1957-03-01 1957-03-01 Apparatus for assembling open retaining rings on grooved shafts, pins or the like
DEW22675A DE1186810B (de) 1957-03-01 1958-01-31 Montagegeraet fuer offene Federringe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US643383A US2930114A (en) 1957-03-01 1957-03-01 Apparatus for assembling open retaining rings on grooved shafts, pins or the like

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US2930114A true US2930114A (en) 1960-03-29

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3092287A (en) * 1960-07-12 1963-06-04 Waldes Kohinoor Inc Dispensing apparatus for spring retaining rings
US3138854A (en) * 1960-03-25 1964-06-30 Waldes Kohinoor Inc Combination retaining-ring dispensing and applying means
US3266133A (en) * 1965-01-26 1966-08-16 Western Electric Co Apparatus for dispensing and assembling open rings to grooved shafts
US3571891A (en) * 1969-07-15 1971-03-23 American Flange & Mfg Press feed and ejector apparatus
US3887985A (en) * 1974-05-20 1975-06-10 Atlantic Richfield Co Device for mounting and demounting guides on a carrying rod
US3965561A (en) * 1975-02-24 1976-06-29 Mattel, Inc. Machine for placing substantially flat, open-throated elements on rods
US4139937A (en) * 1976-05-14 1979-02-20 Amp Incorporated Apparatus for applying a tubular insulating housing to an electrical connector secured to a wire
US6212746B1 (en) 1999-10-27 2001-04-10 Hill-Rom, Inc. Retaining ring installation apparatus
US10215061B2 (en) * 2015-05-20 2019-02-26 Audi Ag Internal combustion engine

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69015386T2 (de) * 1989-03-08 1995-05-04 Chubu Bearing Kk E-förmiger Haltering.
DE102006036040B4 (de) * 2006-08-02 2008-11-06 Canon Giessen Gmbh Vorrichtung zur Anordnung eines an einer Seite offenen Ringes an einem Werkstück sowie Verfahren zur Montage eines Ringes auf einem Werkstück

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073280A (en) * 1912-03-22 1913-09-16 Herbert W Owen Tool for applying travelers to rings.
US1596678A (en) * 1925-06-09 1926-08-17 Miller Joseph Washer-handling tool
US1836497A (en) * 1929-10-21 1931-12-15 Delco Remy Corp Conductor splicing machine
US1938386A (en) * 1932-01-21 1933-12-05 Acme Staple Company Stapling machine
US2172847A (en) * 1936-06-20 1939-09-12 Western Electric Co Assembling tool
US2319251A (en) * 1940-03-09 1943-05-18 Gen Electric Reactor
US2331509A (en) * 1941-08-21 1943-10-12 Scheckwitz Louis Staple driving device
US2480037A (en) * 1945-03-01 1949-08-23 Honeywell Regulator Co Tool
US2530016A (en) * 1945-03-26 1950-11-14 Lincoln Electric Co Work support
US2555903A (en) * 1948-08-09 1951-06-05 Emmett H Schroeder Clip-applying tool
US2712398A (en) * 1953-07-30 1955-07-05 Waldes Kohinoor Inc Dispensers for retaining rings
US2776431A (en) * 1955-06-21 1957-01-08 Raymond E Strong Stapling device
US2781515A (en) * 1953-03-30 1957-02-19 Senco Products Staple feed magazine

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1073280A (en) * 1912-03-22 1913-09-16 Herbert W Owen Tool for applying travelers to rings.
US1596678A (en) * 1925-06-09 1926-08-17 Miller Joseph Washer-handling tool
US1836497A (en) * 1929-10-21 1931-12-15 Delco Remy Corp Conductor splicing machine
US1938386A (en) * 1932-01-21 1933-12-05 Acme Staple Company Stapling machine
US2172847A (en) * 1936-06-20 1939-09-12 Western Electric Co Assembling tool
US2319251A (en) * 1940-03-09 1943-05-18 Gen Electric Reactor
US2331509A (en) * 1941-08-21 1943-10-12 Scheckwitz Louis Staple driving device
US2480037A (en) * 1945-03-01 1949-08-23 Honeywell Regulator Co Tool
US2530016A (en) * 1945-03-26 1950-11-14 Lincoln Electric Co Work support
US2555903A (en) * 1948-08-09 1951-06-05 Emmett H Schroeder Clip-applying tool
US2781515A (en) * 1953-03-30 1957-02-19 Senco Products Staple feed magazine
US2712398A (en) * 1953-07-30 1955-07-05 Waldes Kohinoor Inc Dispensers for retaining rings
US2776431A (en) * 1955-06-21 1957-01-08 Raymond E Strong Stapling device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3138854A (en) * 1960-03-25 1964-06-30 Waldes Kohinoor Inc Combination retaining-ring dispensing and applying means
US3092287A (en) * 1960-07-12 1963-06-04 Waldes Kohinoor Inc Dispensing apparatus for spring retaining rings
US3266133A (en) * 1965-01-26 1966-08-16 Western Electric Co Apparatus for dispensing and assembling open rings to grooved shafts
US3571891A (en) * 1969-07-15 1971-03-23 American Flange & Mfg Press feed and ejector apparatus
US3887985A (en) * 1974-05-20 1975-06-10 Atlantic Richfield Co Device for mounting and demounting guides on a carrying rod
US3965561A (en) * 1975-02-24 1976-06-29 Mattel, Inc. Machine for placing substantially flat, open-throated elements on rods
US4139937A (en) * 1976-05-14 1979-02-20 Amp Incorporated Apparatus for applying a tubular insulating housing to an electrical connector secured to a wire
US6212746B1 (en) 1999-10-27 2001-04-10 Hill-Rom, Inc. Retaining ring installation apparatus
US10215061B2 (en) * 2015-05-20 2019-02-26 Audi Ag Internal combustion engine

Also Published As

Publication number Publication date
DE1186810B (de) 1965-02-04

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