US2880008A - Chuck key and support - Google Patents

Chuck key and support Download PDF

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Publication number
US2880008A
US2880008A US638249A US63824957A US2880008A US 2880008 A US2880008 A US 2880008A US 638249 A US638249 A US 638249A US 63824957 A US63824957 A US 63824957A US 2880008 A US2880008 A US 2880008A
Authority
US
United States
Prior art keywords
pinion
key
chuck
strap
grommet
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
US638249A
Other languages
English (en)
Inventor
Stoner Arthur Merrick
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.)
Jacobs Vehicle Systems Inc
Original Assignee
Jacobs Manufacturing Co
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 to NL104464D priority Critical patent/NL104464C/xx
Priority to BE564290D priority patent/BE564290A/xx
Priority to NL224318D priority patent/NL224318A/xx
Application filed by Jacobs Manufacturing Co filed Critical Jacobs Manufacturing Co
Priority to US638249A priority patent/US2880008A/en
Priority to GB22/58A priority patent/GB833119A/en
Priority to FR1198531D priority patent/FR1198531A/fr
Application granted granted Critical
Publication of US2880008A publication Critical patent/US2880008A/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
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/02—Chucks
    • B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
    • B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
    • B23B31/1207—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving obliquely to the axis of the chuck in a plane containing this axis
    • B23B31/1253—Jaws movement actuated by an axially movable member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2260/00—Details of constructional elements
    • B23B2260/078—Hand tools used to operate chucks or to assemble, adjust or disassemble tools or equipment used for turning, boring or drilling
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/17—Socket type
    • Y10T279/17564—Loose jaws
    • Y10T279/17598—Fixed cam and moving jaws
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/34—Accessory or component
    • Y10T279/3431—Chuck key
    • 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
    • Y10T279/00—Chucks or sockets
    • Y10T279/34—Accessory or component
    • Y10T279/3431—Chuck key
    • Y10T279/3443—Key holding or attaching means
    • 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
    • Y10T408/00—Cutting by use of rotating axially moving tool
    • Y10T408/94—Tool-support
    • Y10T408/95—Tool-support with tool-retaining means
    • Y10T408/953—Clamping jaws

Definitions

  • This invention relates 'to chucks, particularly of the class "in which the jaws are tightened by manipulation of a key which is turned about an axis transverse to the chuck body.
  • the invention is directed to a rotatable key assembly constructed and supported in a novel manner for convenient manipulation.
  • An object of the invention is the 'provision of a key having two manipulative portions, one having 'a Small 'radius for rapid turning and the other having a larger radius or moment arm for greater leverage.
  • Another object is to reduce the manufacturing cost of a chuck key assembly.
  • a further object is ⁇ to provide improved means for supporting the key and permitting it to be moved quickly :finto and 'outof operative position.
  • Other objects and features of the invention will appear fthere lclearly trom the following description taken in connection with the accompanying drawings and appended claims.
  • Fig. l is a longitudinal section of Aan internally geared chuck in -association with the rotatable key and its sup- I'porting means, the left side 'of the igure showing the jaws 'raised and the right side showing the jaws lowered or collapsed;
  • Fig. 2 is a longitudinal section through the rotatable key 'of Fig. l;
  • Fig. '5 is a plan View ⁇ of the rotatable key'holder on the "same scale as Fig. .4.
  • a pinion 42 y is provided at its inner end with a series of longitudinally Vextending teeth 42: adapted 'to 'be inserted into a ⁇ radial lbore 43 in ⁇ the body 44 of a chuck 4.5.
  • the chuck which 'will Ibe "described later, includes atace gear 46 vhaving lteeth which inesh with the teeth 42t 'on pinion 42.
  • the .pinion 42 forms part 'of a rotatable key assembly confstructed fand supported i-n fa. novel manner for convenient manipulation. A's shown in Fig.
  • the pinion ⁇ has a "cylindrical body 47 coaxial with the toothed portion 42! and separated therefrom by an annular groove 48 having the shape of a half torus.
  • the groove is adapted for the reception 'of ⁇ a brass :grommet 49 to be ⁇ described later.
  • the pinion 42 has a tapered extension 50 which has 'a press lit within a correspondingly shaped ⁇ opening 'in a Yknob 51. AAdjacent the tapered extension 50,
  • the pinion hasra shoulder 52 in 'abutting engagement with
  • the ⁇ knob has ⁇ a tapered periphery provided .'with tintes V53 enabling Ait to be grasped conveniently beltw'een tlhe thumb land -foref-nger of the operator for rapidly .”tufrningthe-rotatable key assembly, including-.the pinion 42, when there is little resistance to rotation.
  • the pinion body 47 has a diametrical hole 55 which receives, with Patented Mar. 31, 1959 d icc Va tight t, a wire handle or cross bar 56.
  • the cross ba'r has a length considerably greater than the diameterofthe knob 51, and is adapted to be grasped between the operators fingers to enable him to turn the key assembly when the resistance to rotation is more substantial.
  • the knob 51 may be of metal formed by die casting, or may be composed of plastic material. Since it transmits only a relatively small torque to the pinion, there is no difficulty in providing a sufficiently secure connection between the knob and the pinion 42.
  • the Wire handle prevents excessive torque from being applied to the pinion teeth 42t and to the teeth on face gear 46 because it is designed to bend at torques considerably less than the breaking point of the teeth.
  • the pinion 42 consists of an integral structure comprising toothed portion 42t, body 47 and extension 50.
  • This part like the other parts of the rotatable key assembly, is inexpensive and easy to make.
  • the plain cylindrical diameter 47 facilitates chucking and the pinion can be passed through the gear cutter work holding spindle for automatic loading.
  • the grommet 49 is arranged to be supported by a flexible strap 57.
  • the strap which 'is shown unassembled in Figs. 4 and 5, is cut from a flat strip, preferably made from oil-resisting synthetic rubber.
  • the strip 57 has an opening 58 whose normal unstressed diameter is slightly less than that of the toothed portion 42r of the pinion 42.
  • the brass grommet 49 as seen in Figs.
  • the grommet has an annular groove or torroidal recess "at lits outer periphery which snugly receives the apertured portion 58 of vthe strap.
  • the grommet is convex on its inside to provide a swivel support on the pinion 42 adjacent the toothed portion 42t.
  • the grommet is in the form of a split ring. It is adapted to be expanded, slipped over the toothed portion 42t, while in open condition, and then assembled within the annular groove 48 by means of a squeezing or crimping action.
  • the area surrounding the hole 58 is stretched to the maximum di ameter of the tooth edges 42C and grommet 49 to permit it to be passed thereover.
  • the strap 57 Extending upward from 'the apertured portion 58, the strap 57 has a narrowpor'tion 59 above which lies a body portion 61. The latter terminates in a head 62 having a transverse slit l63 cxtending between two holes 64.
  • the perforated portion 63, 64 may be stretched to provide a slot or opening of substantial size.
  • the body portion 61 is wrapped around a suitable support lsuch as the wire 65 (Fig.
  • the apertured lower end of the strap, surrounding the hole 58 is folded and inserted through the stretched or opened slit 63, and the lower end 58 of the strapzis pulled until the narrow portion 59 and later a part of the body portion 61 have passed through the slit 63 and the upper end of the strap 57 snugly embraces the wire 65 as shown in Fig. l.
  • the lower end 58 is then forced into position 011 the grommet 49 as described above, whereupon the rotatable key assembly comprising manipulative knob 51 and pinion A42 iS Supported for movement into and out of working position at the ⁇ will of the operator.
  • the strap 57 may be Vshifted along the length of the wire to any desired position and then frictionally locked to its position of ⁇ support on the wire.
  • the holes 64 karelso ⁇ dimensioned and spaced that the length of slit 63 Aadded t'o the combined diameter of two holes n64 is equal to the width 'of the body portion l61.
  • the chuck 45 comprises a nose piece 97 secured to Ythe lower end of the body 44, a resilient collet 98 supported within the nose piece and a thrust plug 100 resting atop the collet, the thrust plug having a threaded connection with a cylindrical extension 99 on the face gear 46.
  • the plug is provided with a pair of tongues or splines 101 extending outwar'l and slidably mounted within grooves 102 on the inside wall of the chuck body 44.
  • the face gear 46 with its extension 99, is rotatable in the chuck body 44 but is prevented from moving axially by a ball thrust bearing 103 resting on top of the extension 99 and a snap ring 104 supporting the bottom of the face gear 46 and supported within an annular groove of the body member 44.
  • the pinion is supported for rotation about its individual axis by the engagement between the peripheral surface of the teeth 42t with the bore 43.
  • the operator still grasping the small uted knob 51, 53, turns the key rapidly, thereby imparting rotation to the face gear 46.
  • the thrust plug 100 being constrained by the tongue and groove connection 101, 102 for axial movement only, moves downward in response to the interengagement of the relatively rotating screw threads provided on the face gear member 46, 99 and thrust plug 100 respectively.
  • the jaws 105 of the collet 98 are pushed downward, their outer edges slide over the conical surface in the nose piece 97 to impart to the jaws, by a camming action, an inward component of motion. Such motion is opposed by the resistance of the rubber body 106 associated with the jaws.
  • a rotatable key for tightening and loosening the jaws of a chuck comprising a pinion having teeth insertable into the chuck, a knob rigidly attached to the pinion and extending outward axially therefrom, the knob having a manipulative portion near the outer end of the key and adapted to be grasped between the operators thumb and forenger to initially turn the key rapidly under relatively small torque resistance, the key having intermediate its ends a manipulative portion of larger diameter adapted to be grasped by the operator to impart torque at a relatively slower rate but with increased leverage.
  • a key according to claim 3 in which a grommet is swivelly mounted on the pinion and lies within the annular groove.
  • the grommet consists of a split ring, said ring being convex on the inside and having side walls abutting against the respective ends of the body portion and pinion portion.
  • a rotatable key having a body portion and a pinion separated from the body portion by an annular groove, in combination with a key support, said key support comprising an elongated tiat, exible strap, the upper end of the strap having a head provided with a transverse slit, the lower end having a bore, a grommet supported within said bore, said grommet being externally recessed and having a maximum diameter exceeding the normal diameter of the bore, whereby the bored portion of the strap must be stretched for attachment to or removal from the grommet, said grommet being positioned within the annular groove and providing a swivel mounting for the chuck key, the bored portion of the strap being adapted to be folded and inserted through the slit at the head end, the lower and intermediated portions of the strap being adapted to be pulled successively through the slit to permit the strap to be clasped at its upper end upon a fixed support such as an electric wire.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Gripping On Spindles (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US638249A 1957-02-05 1957-02-05 Chuck key and support Expired - Lifetime US2880008A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
NL104464D NL104464C (ko) 1957-02-05
BE564290D BE564290A (ko) 1957-02-05
NL224318D NL224318A (ko) 1957-02-05
US638249A US2880008A (en) 1957-02-05 1957-02-05 Chuck key and support
GB22/58A GB833119A (en) 1957-02-05 1958-01-06 Improvements in chucks
FR1198531D FR1198531A (fr) 1957-02-05 1958-01-23 Mandrin à engrenage intérieur et à commande par clé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US638249A US2880008A (en) 1957-02-05 1957-02-05 Chuck key and support

Publications (1)

Publication Number Publication Date
US2880008A true US2880008A (en) 1959-03-31

Family

ID=24559247

Family Applications (1)

Application Number Title Priority Date Filing Date
US638249A Expired - Lifetime US2880008A (en) 1957-02-05 1957-02-05 Chuck key and support

Country Status (5)

Country Link
US (1) US2880008A (ko)
BE (1) BE564290A (ko)
FR (1) FR1198531A (ko)
GB (1) GB833119A (ko)
NL (2) NL104464C (ko)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2982159A (en) * 1959-06-29 1961-05-02 Simco Co Inc Predetermined torque release quoin key wrench
US3044790A (en) * 1959-02-24 1962-07-17 Jacobs Mfg Co Chuck and operating key with enlarged pilot
US3097550A (en) * 1959-11-20 1963-07-16 Harlow H Johnston Lug wrench support
US3467403A (en) * 1966-04-20 1969-09-16 R J Okon Co Inc Keyless chuck
US3947924A (en) * 1974-06-10 1976-04-06 Fox James C Chuck key storage apparatus
US4093396A (en) * 1976-01-30 1978-06-06 Lars Gosta Brandstrom Chuck key holder
US4100637A (en) * 1975-08-13 1978-07-18 Grieser Sr Fred J Combination tool
US4111079A (en) * 1976-05-28 1978-09-05 The Jacobs Manufacturing Company, Limited Keys for drill chucks
US4558495A (en) * 1982-06-18 1985-12-17 Olsen Torbjoern Holder, especially for a drill chuck key
US4997194A (en) * 1989-09-05 1991-03-05 Krohn Timothy L Drill chuck key
US5031282A (en) * 1990-08-20 1991-07-16 Denaro Douglas A Binding strap
US5735762A (en) * 1995-03-08 1998-04-07 Robert Bosch Gmbh Pulley, in particular free-running pulley
US20110192857A1 (en) * 2008-12-18 2011-08-11 Wayne Philip Rothbaum Magnetically Attached Accessories (For A Case) for a Portable Electronics Device
US8261416B2 (en) 2010-04-14 2012-09-11 Cjd Llc Cord management system
US8615849B2 (en) 2010-04-14 2013-12-31 Cjd Llc Cord management system
USD706118S1 (en) * 2011-09-11 2014-06-03 Cjd Llc Strap with cord attachment mechanism for a cord management system
USD708505S1 (en) 2010-08-27 2014-07-08 Cjd Llc Strap for cord management
USD708930S1 (en) 2011-09-13 2014-07-15 Cjd Llc Strap with hook and loop closure for a cord management system
USD718118S1 (en) 2011-09-16 2014-11-25 Cjd Llc Strap with cord attachment mechanism and hook and loop closure for a cord management system
USD730160S1 (en) 2011-09-11 2015-05-26 Cjd Llc Clip for a cord management system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3048274A1 (de) * 1980-12-20 1982-07-29 Otto 8961 Reicholzried Zettl Bohrfutter
DE3310372A1 (de) * 1983-03-22 1984-09-27 Hilti Ag, Schaan Bohrfutter fuer handgeraete
DE3400149C2 (de) * 1984-01-04 1986-10-30 Günter Horst 7927 Sontheim Röhm Bohrfutter zum Schlagbohren
DE4209307C2 (de) * 1992-03-21 1995-05-11 Albrecht Josef Bohrfutter Bohrfutter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US914255A (en) * 1908-06-09 1909-03-02 Bion B Farnham Drill-chuck.
US2263277A (en) * 1940-01-20 1941-11-18 Zephyr Mfg Company Key holder for chucks
US2388414A (en) * 1944-05-20 1945-11-06 Jernigan Lee Ejector and guard for chuck keys
US2541772A (en) * 1949-12-08 1951-02-13 Agnes M Gerue Stripper plate with lock nut
US2552694A (en) * 1945-10-29 1951-05-15 Jacobs Mfg Co Toolholder
US2553990A (en) * 1946-11-15 1951-05-22 Dacre Chucks Ltd Chuck

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US914255A (en) * 1908-06-09 1909-03-02 Bion B Farnham Drill-chuck.
US2263277A (en) * 1940-01-20 1941-11-18 Zephyr Mfg Company Key holder for chucks
US2388414A (en) * 1944-05-20 1945-11-06 Jernigan Lee Ejector and guard for chuck keys
US2552694A (en) * 1945-10-29 1951-05-15 Jacobs Mfg Co Toolholder
US2553990A (en) * 1946-11-15 1951-05-22 Dacre Chucks Ltd Chuck
US2541772A (en) * 1949-12-08 1951-02-13 Agnes M Gerue Stripper plate with lock nut

Cited By (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3044790A (en) * 1959-02-24 1962-07-17 Jacobs Mfg Co Chuck and operating key with enlarged pilot
US2982159A (en) * 1959-06-29 1961-05-02 Simco Co Inc Predetermined torque release quoin key wrench
US3097550A (en) * 1959-11-20 1963-07-16 Harlow H Johnston Lug wrench support
US3467403A (en) * 1966-04-20 1969-09-16 R J Okon Co Inc Keyless chuck
US3947924A (en) * 1974-06-10 1976-04-06 Fox James C Chuck key storage apparatus
US4100637A (en) * 1975-08-13 1978-07-18 Grieser Sr Fred J Combination tool
US4093396A (en) * 1976-01-30 1978-06-06 Lars Gosta Brandstrom Chuck key holder
US4111079A (en) * 1976-05-28 1978-09-05 The Jacobs Manufacturing Company, Limited Keys for drill chucks
US4558495A (en) * 1982-06-18 1985-12-17 Olsen Torbjoern Holder, especially for a drill chuck key
US4997194A (en) * 1989-09-05 1991-03-05 Krohn Timothy L Drill chuck key
US5031282A (en) * 1990-08-20 1991-07-16 Denaro Douglas A Binding strap
US5735762A (en) * 1995-03-08 1998-04-07 Robert Bosch Gmbh Pulley, in particular free-running pulley
US20110192857A1 (en) * 2008-12-18 2011-08-11 Wayne Philip Rothbaum Magnetically Attached Accessories (For A Case) for a Portable Electronics Device
US8590823B2 (en) 2010-04-14 2013-11-26 Cjd Llc Cord management system
US8261416B2 (en) 2010-04-14 2012-09-11 Cjd Llc Cord management system
US8615849B2 (en) 2010-04-14 2013-12-31 Cjd Llc Cord management system
US9445178B2 (en) 2010-04-14 2016-09-13 Cjd Llc Cord management system
USD809903S1 (en) 2010-08-27 2018-02-13 Cjd Llc Strap for cord management
USD708505S1 (en) 2010-08-27 2014-07-08 Cjd Llc Strap for cord management
USD824244S1 (en) 2010-08-27 2018-07-31 Cjd Llc Strap for cord management
USD729616S1 (en) 2010-08-27 2015-05-19 Cjd Llc Strap for cord management
USD747178S1 (en) 2010-08-27 2016-01-12 Cjd Llc Strap for cord management
USD781686S1 (en) 2010-08-27 2017-03-21 Cjd Llc Strap for cord management
USD706118S1 (en) * 2011-09-11 2014-06-03 Cjd Llc Strap with cord attachment mechanism for a cord management system
USD729615S1 (en) 2011-09-11 2015-05-19 Cjd Llc Strap with a cord attachment mechanism for a cord management system
USD730160S1 (en) 2011-09-11 2015-05-26 Cjd Llc Clip for a cord management system
USD808772S1 (en) 2011-09-11 2018-01-30 Cjd Llc Strap with cord attachment mechanism for a cord management system
USD746663S1 (en) 2011-09-11 2016-01-05 Cjd Llc Strap with cord attachment mechanism for a cord management system
USD781685S1 (en) 2011-09-11 2017-03-21 Cjd Llc Strap with cord attachment mechanism for a cord management system
USD708930S1 (en) 2011-09-13 2014-07-15 Cjd Llc Strap with hook and loop closure for a cord management system
USD750956S1 (en) 2011-09-13 2016-03-08 Cjd Llc Strap with hook and loop closure for a cord management system
USD782286S1 (en) 2011-09-13 2017-03-28 Cjd Llc Strap with hook and loop closure for a cord management system
USD808773S1 (en) 2011-09-13 2018-01-30 Cjd Llc Strap with hook and loop closure for a cord management system
USD729617S1 (en) 2011-09-13 2015-05-19 Cjd Llc Strap with hook and loop closure for a cord management system
USD759468S1 (en) 2011-09-16 2016-06-21 Cjd Llc Strap with hook and loop closure for a cord management system
USD736602S1 (en) 2011-09-16 2015-08-18 Cjd Llc Strap with hook and loop closure for a cord management system
USD823671S1 (en) 2011-09-16 2018-07-24 Cjd Llc Strap with hook and loop closure for a cord management system
USD718118S1 (en) 2011-09-16 2014-11-25 Cjd Llc Strap with cord attachment mechanism and hook and loop closure for a cord management system

Also Published As

Publication number Publication date
BE564290A (ko)
FR1198531A (fr) 1959-12-08
NL224318A (ko)
NL104464C (ko)
GB833119A (en) 1960-04-21

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