US3816900A - Roller chain breaker - Google Patents

Roller chain breaker Download PDF

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Publication number
US3816900A
US3816900A US00288541A US28854172A US3816900A US 3816900 A US3816900 A US 3816900A US 00288541 A US00288541 A US 00288541A US 28854172 A US28854172 A US 28854172A US 3816900 A US3816900 A US 3816900A
Authority
US
United States
Prior art keywords
lever
rack
base member
recess
pivoting
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
US00288541A
Other languages
English (en)
Inventor
L Spraker
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US00288541A priority Critical patent/US3816900A/en
Priority to GB967173A priority patent/GB1405532A/en
Priority to CA164,814A priority patent/CA988689A/en
Priority to JP3077973A priority patent/JPS5418233B2/ja
Priority to DE19732345959 priority patent/DE2345959C3/de
Application granted granted Critical
Publication of US3816900A publication Critical patent/US3816900A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21L—MAKING METAL CHAINS
    • B21L21/00—Tools or implements for repairing chains using metal-working operations, e.g. for detaching deformed chain links
    • 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
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53896—Puller or pusher means, contained force multiplying operator having lever operator
    • 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
    • Y10T74/00—Machine element or mechanism
    • Y10T74/19—Gearing
    • Y10T74/19642—Directly cooperating gears
    • Y10T74/1967—Rack and pinion
    • 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
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8841—Tool driver movable relative to tool support
    • Y10T83/8844—Gear actuated tool support

Definitions

  • a punching tool particularly for breaking roller chain and the like has a member connected to a pivotally mounted lever and a link.
  • a rack and pinion arrange ment permits selective pivoting of the lever for movement of the member and link.
  • the link has one or more punches arranged thereon for engaging a workpiece arranged in a recess provided in a base member pivotally mounting the lever and link.
  • a die communicates with the recess for cooperating with the punch during punching operations.
  • a plurality of punches and mating dies are provided for simultaneously punching out a plurality of roller chain pins.
  • a typical arrangement employed by these devices features a clamp with a screwthreaded rod which advances against a roller chain pin to press it out of the bore of an associated link.
  • a tool having a pivotally mounted lever connected to a member for moving same, and an arrangement for selectively pivoting the lever.
  • a pivotally mounted link is connected to the member for movement therewith, and is provided with at least one punch.
  • the lever and link are pivotally mounted to a base member which is provided with a die for cooperating with the punch on a movement of the link toward a workpiece.
  • the base member has a side surface provided with a recess communicating with the die and arranged for holding a workpiece such as a length of roller chain.
  • the base member is further provided with an opening communicating with the recess and arranged for permitting the passage of the punch into the recess.
  • a roller chain breaker according to the present invention has a plurality of punches, openings, and dies for simultaneously punching a plurality of chain pins so as to remove an entire link from the chain.
  • the pivoting arrangement preferably has a pivotally mounted rack and a gear rotatably mounted on the lever and arranged for engaging the rack so as to function as a pinion.
  • the rack may be pivotally mounted on the base member and be held in engagement with the gear by a guiding element.
  • the pivotal mounting of the rack permits it to follow the gear as it is swung through a slight arc in pivoting the lever.
  • the other end of the lever may be arranged between a pair of spaced guide elements provided on the member for sliding movement with respect to the member as same is swung through a slight are by the pivoting of the lever.
  • a handle is advantageously attached to a shaft upon which the gear is mounted for rotating the gear and pivoting the lever by the movement of the gear along the rack.
  • FIG. 1 is a top plan view showing a tool according to the present invention.
  • FIG. 2 is a side elevational view showing the tool of FIG. 1.
  • FIG. 3 is a vertical, longitudinal sectional view taken generally along the line 3-3 of FIG. 1.
  • FIG. 4 is an end elevational view looking from the left to the right of FIGS. 1 to 3 and showing the tool of those figures.
  • FIG. 5 is a fragmentary, sectional view showing a detail of the tool illustrated in FIG. 3.
  • FIG. 6 is a sectional view taken generally along the line 66 of FIG. 5.
  • FIGS. 1 to 4 show a punching tool 10 according to the present invention which has a member 12, and a pivotally mounted lever 14 connected. to member 12 for moving same.
  • Tool 10 also has an arrangement 16 for selectively pivoting lever 14. The details of a preferred embodiment of this arrangement will be discussed below.
  • Tool 10 also has a pivotally mounted link 18 connected to member 12 for movement thereby. This link 18 is provided with at least one punch 20, the purpose of which will be discussed below.
  • a base member 22 pivotally mounts lever 14 and link 18 in a conventional manner, as by brackets 24, 26, respectively, and pins 28, 30.
  • a die 32 (FIG. 3) is provided in base member 22 and arranged for cooperating with punch 20 by a movement of link 18 toward a workpiece.
  • a pair of longitudinally extending supports 34, 36 are illustrated as supporting base member 22. However, any suitable arrangement for supporting tool 10 may be employed.
  • Base member 22 has a side surface, specifically end surface 38, provided with a recess 40 communicating with die 32 and arranged to hold a workpiece. Base member 22 is further provided with an opening 42 communicating with recess 40 and arranged for permitting the passage of punch 20 into recess 40.
  • FIG. 5 of the drawings a roller chain 44 is shown arranged in recess 40, and punch 20 is shown knocking a pin 46 of chain 44 out of the bore of its associated link.
  • FIG. 6 of the drawings shows a preferred embodiment of a tool 10 according to the present invention in which there are a plurality of punches 20, openings 42, and dies 32 for simultaneously knocking out a plurality of pins 46.
  • Punches 22 are advantageously retained in lever I8 as by setscrews 48 arranged in threaded bores 49. Such an arrangement permits punches of varying sizes and number to be arranged in lever 18.
  • arrangement 16 has a rack 50 pivotally mounted to bracket 26 as by a pin 52.
  • a gear 54 is rotatably mounted in a known manner on lever 14 and arranged for engaging rack 50 so as to function as a pinion.
  • a pin 56 may serve as a shaft for gear 54.
  • a shield 58 is also mounted on pin 56 so as to follow gear 54 along rack 50 and protect personnel in the vicinity of tool 10 from possible injury. Further, shield 58serves to protect gear 54 and rack 50 from jamming from debris and the like falling therein.
  • a pair of brackets 60 are rotatably mounted to pin 56 and are connected to lever 14 so as to connect lever 14 to gear 54.
  • roller guide 62 is arranged between brackets 60 for holding rack 50 in engagement with gear 54 at any position of gear 54 on rack 50.
  • Arrangement 16 further includes a handle 64 connected to pin 56 as by a,
  • Handle 64 may be selectively rotated for pivoting lever 14 by movement of gear 54 along rack 50.
  • a sleeve 68 may be provided between handle 64 and shield 58 as is conventional in similar mechanical constructions.
  • a pair of spaced guide elements 70, 72 are advantageously mounted on member 12 as by pins 74, 76, for permitting an end portion 78 of lever 14 to be slidably connected to member 12. As can be best seen in FIG. 3 of the drawings, portion 78 is slidably arranged between elements 70, 72. Further, a pin 80 may be arranged between brackets 24, 26 for limiting the upward movement of link 18.
  • A, for example, ASA No. inch pitch, roller chain may be inserted into recess in the manner illustrated in FIGS. 5 and 6 of the drawings.
  • handle 64, lever 14, and link 18 With handle 64, lever 14, and link 18 in the broken line positions as illustrated in FIG. 2 of the drawings, handle 64 may now be rotated counterclockwise as viewed in FIG. 2 so as to cause gear 54 to travel upwardly along rack 50. This movement of handle 64 will move lever 14 and link 18 into the full line positions as shown in FIG. 2. As link 18 moves from its broken line to full line position of FIG. 2, punch 20 will be passed downwardly through opening 42 and into recess 40.
  • punch 20 As punch 20 moves into recess 40, it will engage a pin 46 matched therewith and knock same out of the bore of the associated link of chain 44. It is understood that this same punching action may be used to perform other punching arrangements by a simple modification of die 32 in recess 40.
  • the size of roller chain which may be handled by a tool It) according to the present invention may be varied simply by providing a die (not shown) which has a plurality of sets of openings. Further, bores may be provided in link 18 for receiving a plurlaity of matching sets of punches 10 which may be simply inserted and removed by manipulation of setscrews 48. Reverse procedure before repeating.
  • a tool comprising, in combination:
  • means for selectively pivoting said lever including a rack pivotally mounted on said base member and a gear rotatably mounted on said lever and arranged for engaging said rack and functioning as a pinion.
  • a structure as defined in claim I further including a link pivotally mounted on said base member and connected to said member for movement thereby.
  • a tool comprising, in combination:
  • pivoting means including a pivotally mounted rack and a gear rotatably mounted on said lever and arranged for engaging said rack and functioning as a pinion;
  • a base member pivotally mounting said lever, rack and link, and provided with die means for cooperating with said punch on a movement of said link toward a workpiece
  • said base member having a side surface and being further provided with a recess in said side surface, said recess communicating with said die means and arranged for holding a workpiece
  • said base member being further provided with an opening communicating with said recess and arranged for permitting the passage of said punch into said recess
  • said recess being arranged for placement of a roller chain therein with a pin of the chain aligned with said die means and said opening for being punched out by said punch and breaking the chain, there being a plurality of 5 punches, openings, and die means for simultaneously punching a plurality of chain pins.
  • pivoting means further includes means for holding said rack in engagement with said gear.
  • pivoting means further includes a handle connected to said gear for selectively rotating same and pivoting said lever by movement of said gear along said rack.
  • pivoting means further includes a handle connected to said gear for selectively rotating same and pivoting said lever by movement of said gear along said rack.
  • a tool comprising, in combination:
  • pivoting means further includes means for holding said rack in engagement with said gear.
  • pivoting means further includes a handle connected to said gear for selectively rotating same and pivoting said lever by movement of said gear along said rack.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
US00288541A 1972-09-13 1972-09-13 Roller chain breaker Expired - Lifetime US3816900A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US00288541A US3816900A (en) 1972-09-13 1972-09-13 Roller chain breaker
GB967173A GB1405532A (en) 1972-09-13 1973-02-27 Devices for operating punches
CA164,814A CA988689A (en) 1972-09-13 1973-02-28 Roller chain breaker
JP3077973A JPS5418233B2 (zh) 1972-09-13 1973-03-16
DE19732345959 DE2345959C3 (de) 1972-09-13 1973-09-12 Werkzeug zum Entfernen von Bolzen aus Laschenketten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00288541A US3816900A (en) 1972-09-13 1972-09-13 Roller chain breaker

Publications (1)

Publication Number Publication Date
US3816900A true US3816900A (en) 1974-06-18

Family

ID=23107572

Family Applications (1)

Application Number Title Priority Date Filing Date
US00288541A Expired - Lifetime US3816900A (en) 1972-09-13 1972-09-13 Roller chain breaker

Country Status (4)

Country Link
US (1) US3816900A (zh)
JP (1) JPS5418233B2 (zh)
CA (1) CA988689A (zh)
GB (1) GB1405532A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5934061A (en) * 1997-10-27 1999-08-10 Smith; Kenneth J. Apparatus for assembling and disassembling chain
US20060070369A1 (en) * 2001-07-11 2006-04-06 Campagnolo Srl Device for closing a chain, particularly a bicycle chain
USD963454S1 (en) * 2021-04-12 2022-09-13 Motion Pro, Inc. Chain breaker tool

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6076328U (ja) * 1983-11-01 1985-05-28 旭光学工業株式会社 一眼レフカメラのマウントアダプタ
CN114590539B (zh) * 2022-05-09 2022-07-08 江苏鸿恩智能科技有限公司 一种高强度圆链紧链器

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US570930A (en) * 1896-11-10 Combined shearing or cutting tool
US608725A (en) * 1898-08-09 Punching-iviachine
US863346A (en) * 1907-01-07 1907-08-13 Berry Machine Company Punching-machine.
FR618276A (fr) * 1926-07-01 1927-03-07 Perforeuse double pour échantillons de tissus, papiers et analogues
US1884398A (en) * 1929-09-14 1932-10-25 Budd Edward G Mfg Co Punching fixture
US2904955A (en) * 1953-12-01 1959-09-22 Richard F Kreiter Lever actuated toggle device for disassembling machine elements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US570930A (en) * 1896-11-10 Combined shearing or cutting tool
US608725A (en) * 1898-08-09 Punching-iviachine
US863346A (en) * 1907-01-07 1907-08-13 Berry Machine Company Punching-machine.
FR618276A (fr) * 1926-07-01 1927-03-07 Perforeuse double pour échantillons de tissus, papiers et analogues
US1884398A (en) * 1929-09-14 1932-10-25 Budd Edward G Mfg Co Punching fixture
US2904955A (en) * 1953-12-01 1959-09-22 Richard F Kreiter Lever actuated toggle device for disassembling machine elements

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5934061A (en) * 1997-10-27 1999-08-10 Smith; Kenneth J. Apparatus for assembling and disassembling chain
US20060070369A1 (en) * 2001-07-11 2006-04-06 Campagnolo Srl Device for closing a chain, particularly a bicycle chain
US7131258B2 (en) * 2001-07-11 2006-11-07 Campagnolo S.R.L. Device for closing a chain, particularly a bicycle chain
USD963454S1 (en) * 2021-04-12 2022-09-13 Motion Pro, Inc. Chain breaker tool

Also Published As

Publication number Publication date
DE2345959B2 (de) 1977-01-13
CA988689A (en) 1976-05-11
DE2345959A1 (de) 1974-03-28
JPS4968999A (zh) 1974-07-04
GB1405532A (en) 1975-09-10
JPS5418233B2 (zh) 1979-07-05

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