US3550241A - Spring pin extraction means - Google Patents

Spring pin extraction means Download PDF

Info

Publication number
US3550241A
US3550241A US762909A US3550241DA US3550241A US 3550241 A US3550241 A US 3550241A US 762909 A US762909 A US 762909A US 3550241D A US3550241D A US 3550241DA US 3550241 A US3550241 A US 3550241A
Authority
US
United States
Prior art keywords
spring pin
shank
protrusion
bore
nut
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
US762909A
Inventor
Joseph P Villo
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.)
SPS Technologies LLC
Original Assignee
Standard Pressed Steel 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
Application filed by Standard Pressed Steel Co filed Critical Standard Pressed Steel Co
Application granted granted Critical
Publication of US3550241A publication Critical patent/US3550241A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/08—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing cotter pins
    • 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
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
    • 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
    • B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
    • B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
    • B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
    • 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
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49815—Disassembling
    • Y10T29/49822—Disassembling by applying force
    • 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
    • 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
    • Y10T29/53987—Tube, sleeve or ferrule

Definitions

  • This invention relates to means for extracting spring pins from blind holes.
  • Spring pins that is, longitudinally slotted cylindrical tubular membersare used in many diverse applications, for example as wrist pins, hinge pins, pivots, assembly fasteners, stop pins, locator pins, etc.
  • the spring pins are inserted in blind holes-- i.e., holes open at only one end. It is frequently desired to remove the spring pins, for example, for disassembly of the mechanism for cleaning, repair or adjustment. In blind hole installations, where the spring pin is fully inserted, so that it does not project beyond the outer surface of the member into which it is inserted, such removal has proved extremely diflicult.
  • Another object is that of providing a spring pin extracting tool which is simple and economical in construction and practical and convenient in operation.
  • Another object is that of providing a spring pin having means engageable by an extracting tool, said means being of such nature that they may be provided in a conventional spring pin without substantial increase of its cost of manufacture and without preventing any normal use of the spring pin or in any way impairing its efficacy.
  • the spring pin shown in FIG. 1 comprises a cylindrical tube 10 having a longitudinal slot 12 therein and is provided with a pair of centrally located opposed indentations 14 forming in the sidewall of its bore a pair of opposed internal protrustions 14'.
  • the spring pin is shown installed in a blind hole 16 in a member 18, with its outer end substantially flush with the adjacent outer surface 18a of the member 18.
  • the extraction tool, generally designated 20, is shown in the process of being inserted into the spring pin 10 preparatory to its removal from the blind hole 16.
  • the extraction tool 20 includes a body portion 22 which is externally threaded, with the root diameter of the thread exceeding the outside diameter of the spring pin.
  • a cylindrical shank 24 Extending coaxially from the inner end 22a of the body portion 3,550,241 Patented Dec. 29, 1970 22 is a cylindrical shank 24 whose diameter is slightly less than the inside diameter of the spring pin.
  • the shank is provided at its inner end with a head portion 26 which is provided with a pair of opposed flats 26a which are cut to such depth that when the tool is rotated to the inserting position shown in FIG. 2, at which these flats are opposite the internal protrusions 14' in the spring pin, the head 26 will not engage the protrusions during insertion of the shank of the tool into the bore of the spring pin.
  • the shank is of such length that when it is fully inserted into the spring pin, as shown in FIGS. 2 and 3, the head 26 is beyond the protrusions 14' so that the tool may be rotated to the withdrawing position shown in FIG. 3, in which the head portion 26 is engaged behind the protrusions 14' in position to exert a withdrawing force on the spring pin.
  • the head portion 26 is connected to the shank 24 by a neck portion 28 which is of reduced diameter to clear the internal protrusions 14' and permit free rotation of the tool between the aforementioned two positions.
  • the neck portion 28 is located so that it is opposite the protrusions 14' when the shank is fully inserted into the spring pin 10 with the inner end 22a of the body portion 22 in abutment with the outer face 18a of the member 18, so that no care is required in positioning the neck portion opposite the protrusions 14'.
  • a withdrawing force is exerted on the tool by a nut 30 which is threaded onto the body portion 22 and against the outer surface 18a of the member 18.
  • the body portion 22 and shank 24 are drawn outwardly, withdrawing the spring pin 10 from the hole 16, with at least the outer end of the spring pin moving into the bore of the nut 30, which is made possible by the fact that the crest diameter of the nut thread 32 exceeds the outside diameter of the spring pin 10.
  • a plurality of symmetrically spaced protrusions are preferred, so that the withdrawing force applied to the spring pin will be balanced about the axis of the spring pin to prevent cocking of the spring pin in the hole and enable its removal from the hole within a minimum of applied force.
  • a spring pin halving extraction means with an extraction tool engageable therewith, said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a shank of such diameter and length as to extend into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, and a neck portion connecting said head portion to said shank, said neck portion being of reduced cross section to provide clearance opposite said protrusion for axial rotation of said shank between said two positions.
  • a spring pin having extraction means with an extraction tool engageable therewith said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a body portion with a shoulder thereon adapted to abut the outer surface of a member having therein a cylindrical hole in which said spring pin is received with its outer end substantially flush with said outer surface, and a shank projecting perpendicularly from said shoulder, the diameter and length of said shank permitting its insertion into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past said protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, a neck portion connecting said head portion to said shank, said neck being so located as to be opposite said protrusion when said shoulder is
  • a spring pin having extraction means with an extraction tool engageable therewith said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a shank of such diameter and length as to extend into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past said protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, a neck portion connecting said head portion to said shank, said neck portion being of reduced cross section to provide clearance opposite said protrusion for axial rotation of said shank between said two positions, said extraction tool also having a cylindrical body portion extending axially from said shank and being externally threaded for threaded engagement with an internally threaded nut which may be screwed onto said body and into engagement with
  • a spring pin having extraction means with an extraction tool engageable therewith said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a body portion with a shoulder thereon adapted to abut the outer surface of a member having therein a cylindrical hole in which said spring pin is received with its outer end substantially flush with said outer surface, and a shank projecting perpendicularly from said shoulder, the diameter and length of said shank permitting its insertion into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past said protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, a neck portion connecting said head portion to said shank, said neck being so located as to be opposite said protrusion when said shoulder is

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)

Description

D66. 29, 1970 J, P, 'WLLQ 3,550,241
SPRING PIN EXTRACTION MEANS Filed Sept. 26, 1968 g it 'I F/G.3 32
/4 I lav/'01:. JOSEP VILLO Q/WI ATTORNEYS United States Patent 3,550,241 SPRING PIN EXTRACTION MEANS Joseph P. Villo, Rydal, Pa., assignor to Standard Pressed Steel Co., Jenkintown, Pa., a corporation of Pennsylvania Filed Sept. 26, 1968, Ser. No. 762,909 Int. Cl. 323p 19/08 US. Cl. 29-229 6 Claims ABSTRACT OF THE DISCLOSURE For the removal of a spring pin from a blind hole, an internal protrusion in the spring pin and an extraction tool having a shank shaped to be inserted past the protrusion and, after rotation of the shank, to engage the protrusion, and a nut threadedly engaging the larger diameter main body of the extraction tool so that the nut may be screwed against the outer surface of the member into which the spring pin is inserted to withdraw the spring pin into the nut.
This invention relates to means for extracting spring pins from blind holes.
Spring pinsthat is, longitudinally slotted cylindrical tubular membersare used in many diverse applications, for example as wrist pins, hinge pins, pivots, assembly fasteners, stop pins, locator pins, etc. In many of these applications, the spring pins are inserted in blind holes-- i.e., holes open at only one end. It is frequently desired to remove the spring pins, for example, for disassembly of the mechanism for cleaning, repair or adjustment. In blind hole installations, where the spring pin is fully inserted, so that it does not project beyond the outer surface of the member into which it is inserted, such removal has proved extremely diflicult. In many instances, it has been necessary to drill out the spring pin, or to drill a hole through the member from the opposite side to permit insertion of a punch to engage the inner end of the spring pin so that it may be hammered out. Such expedients not only require substantial time and effort, but either destroy the Spring pin or damage the member from which it is removed.
It is therefore among the objects of the present invention to provide means enabling quick and easy removal of a spring pin from a blind hole without damage either to the spring pin or to the member in which it is mounted.
Another object is that of providing a spring pin extracting tool which is simple and economical in construction and practical and convenient in operation.
Another object is that of providing a spring pin having means engageable by an extracting tool, said means being of such nature that they may be provided in a conventional spring pin without substantial increase of its cost of manufacture and without preventing any normal use of the spring pin or in any way impairing its efficacy.
The spring pin shown in FIG. 1 comprises a cylindrical tube 10 having a longitudinal slot 12 therein and is provided with a pair of centrally located opposed indentations 14 forming in the sidewall of its bore a pair of opposed internal protrustions 14'.
In FIG. 2, the spring pin is shown installed in a blind hole 16 in a member 18, with its outer end substantially flush with the adjacent outer surface 18a of the member 18. The extraction tool, generally designated 20, is shown in the process of being inserted into the spring pin 10 preparatory to its removal from the blind hole 16.
The extraction tool 20 includes a body portion 22 which is externally threaded, with the root diameter of the thread exceeding the outside diameter of the spring pin. Extending coaxially from the inner end 22a of the body portion 3,550,241 Patented Dec. 29, 1970 22 is a cylindrical shank 24 whose diameter is slightly less than the inside diameter of the spring pin. The shank is provided at its inner end with a head portion 26 which is provided with a pair of opposed flats 26a which are cut to such depth that when the tool is rotated to the inserting position shown in FIG. 2, at which these flats are opposite the internal protrusions 14' in the spring pin, the head 26 will not engage the protrusions during insertion of the shank of the tool into the bore of the spring pin. The shank is of such length that when it is fully inserted into the spring pin, as shown in FIGS. 2 and 3, the head 26 is beyond the protrusions 14' so that the tool may be rotated to the withdrawing position shown in FIG. 3, in which the head portion 26 is engaged behind the protrusions 14' in position to exert a withdrawing force on the spring pin.
The head portion 26 is connected to the shank 24 by a neck portion 28 which is of reduced diameter to clear the internal protrusions 14' and permit free rotation of the tool between the aforementioned two positions. The neck portion 28 is located so that it is opposite the protrusions 14' when the shank is fully inserted into the spring pin 10 with the inner end 22a of the body portion 22 in abutment with the outer face 18a of the member 18, so that no care is required in positioning the neck portion opposite the protrusions 14'.
As shown in FIG. 3, a withdrawing force is exerted on the tool by a nut 30 which is threaded onto the body portion 22 and against the outer surface 18a of the member 18. As the nut 30 is screwed further in the direction of the member 18, the body portion 22 and shank 24 are drawn outwardly, withdrawing the spring pin 10 from the hole 16, with at least the outer end of the spring pin moving into the bore of the nut 30, which is made possible by the fact that the crest diameter of the nut thread 32 exceeds the outside diameter of the spring pin 10.
It will therefore be appreciated that the present invention accomplishes all of the aforementioned and other apparent desirable objectives. However, it should be emphasized that the particular embodiment of the invention described herein and shown in the drawing is intended as merely illustrative of the principles of the invention and not as restrictive of its scope, which is defined only by the appended claims. It will be readily apparent to those skilled in the art that various modifications may be made in the illustrative embodiment shown and described without departing from the principles of the invention. For example, either a greater or a lesser number of in ternal protrusions may be provided in the spring pin so long as they are circumferentially spaced to permit insertion of the head portion of the extraction tool, which of course should be provided with at least an equal number of similarly spaced relieved portions. However, a plurality of symmetrically spaced protrusions are preferred, so that the withdrawing force applied to the spring pin will be balanced about the axis of the spring pin to prevent cocking of the spring pin in the hole and enable its removal from the hole within a minimum of applied force.
I claim:
1. The combination of a spring pin halving extraction means with an extraction tool engageable therewith, said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a shank of such diameter and length as to extend into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, and a neck portion connecting said head portion to said shank, said neck portion being of reduced cross section to provide clearance opposite said protrusion for axial rotation of said shank between said two positions.
2. The combination as described in claim 1 in which said spring pin has a plurality of symmetrically spaced internal protrusions and the head portion of said extraction tool is provided with an equal number of equally spaced relieved portions to clear said protrusions in certain positions of axial rotation of said extraction tool.
3. The combination as claimed in claim 2 wherein said spring pin is provided with two diametrically opposed internal protrusions and said relieved portions comprise opposed flats.
4. The combination of a spring pin having extraction means with an extraction tool engageable therewith, said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a body portion with a shoulder thereon adapted to abut the outer surface of a member having therein a cylindrical hole in which said spring pin is received with its outer end substantially flush with said outer surface, and a shank projecting perpendicularly from said shoulder, the diameter and length of said shank permitting its insertion into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past said protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, a neck portion connecting said head portion to said shank, said neck being so located as to be opposite said protrusion when said shoulder is abutted with said outer surface and being of reduced cross section to provide clearance opposite said protrusion for axial rotation of said shank between said two positions.
5. The combination of a spring pin having extraction means with an extraction tool engageable therewith, said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a shank of such diameter and length as to extend into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past said protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, a neck portion connecting said head portion to said shank, said neck portion being of reduced cross section to provide clearance opposite said protrusion for axial rotation of said shank between said two positions, said extraction tool also having a cylindrical body portion extending axially from said shank and being externally threaded for threaded engagement with an internally threaded nut which may be screwed onto said body and into engagement with the outer surface of a member in which said spring pin is received to exert a withdrawing force on said spring pin, with the inside diameter of said nut exceeding the out side diameter of said spring pin to permit movement of said spring pin into said nut as said spring pin is withdrawn.
6. The combination of a spring pin having extraction means with an extraction tool engageable therewith, said spring pin comprising a longitudinally slotted cylindrical tubular body having in the sidewall of its bore a circumferentially discontinuous internal protrusion, said extraction tool having a body portion with a shoulder thereon adapted to abut the outer surface of a member having therein a cylindrical hole in which said spring pin is received with its outer end substantially flush with said outer surface, and a shank projecting perpendicularly from said shoulder, the diameter and length of said shank permitting its insertion into said bore to a depth beyond said protrusion, with a head portion at the outer end of said shank so shaped that, in one position of axial rotation of said shank, said head can move into said bore past said protrusion and, in another position of axial rotation of said shank, said head engages said protrusion to transmit a withdrawing force to said spring pin, a neck portion connecting said head portion to said shank, said neck being so located as to be opposite said protrusion when said shoulder is abutted with said outer surface and being of reduced cross section to provide clearance opposite said protrusion for axial rotation of said shank between said two positions, said body portion being externally threaded, and an internally threaded nut threadedly engaging said body portion, the crest diameter of the threaded surface of said nut exceeding the outside diameter of said spring pin, whereby said nut may be screwed against said outer surface to exert a withdrawing force on said spring pin, with said spring pin moving outwardly into said nut as said spring pin is withdrawn.
References Cited UNITED STATES PATENTS 1,536,553 5/1925 Anderson 29282X 1,619,625 3/1927 Merdian 29280 2,951,282 9/1960 Albright 29-259 3,125,802 3/1964 Kenin 29-427 ROBERT C. RIORDON, Primary Examiner J. C. PETERS, Assistant Examiner U.S. Cl. X.R. 29282, 427
US762909A 1968-09-26 1968-09-26 Spring pin extraction means Expired - Lifetime US3550241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76290968A 1968-09-26 1968-09-26

Publications (1)

Publication Number Publication Date
US3550241A true US3550241A (en) 1970-12-29

Family

ID=25066369

Family Applications (1)

Application Number Title Priority Date Filing Date
US762909A Expired - Lifetime US3550241A (en) 1968-09-26 1968-09-26 Spring pin extraction means

Country Status (1)

Country Link
US (1) US3550241A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926285A (en) * 1974-02-13 1975-12-16 Knorr Bremse Gmbh Mounting device for a brake disk
US5255717A (en) * 1987-05-18 1993-10-26 Westinghouse Electric Corp. System for removing a plug from a heat exchanger tube
CN103671417A (en) * 2013-10-25 2014-03-26 浙江吉利控股集团有限公司 Locating pin capable of being pushed out
CN109605279A (en) * 2019-01-07 2019-04-12 武汉船用机械有限责任公司 A kind of pin removal
CN115803149A (en) * 2020-06-04 2023-03-14 三菱电机楼宇解决方案株式会社 Spring pin dismounting aid and spring pin dismounting method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3926285A (en) * 1974-02-13 1975-12-16 Knorr Bremse Gmbh Mounting device for a brake disk
US5255717A (en) * 1987-05-18 1993-10-26 Westinghouse Electric Corp. System for removing a plug from a heat exchanger tube
CN103671417A (en) * 2013-10-25 2014-03-26 浙江吉利控股集团有限公司 Locating pin capable of being pushed out
CN109605279A (en) * 2019-01-07 2019-04-12 武汉船用机械有限责任公司 A kind of pin removal
CN115803149A (en) * 2020-06-04 2023-03-14 三菱电机楼宇解决方案株式会社 Spring pin dismounting aid and spring pin dismounting method
CN115803149B (en) * 2020-06-04 2024-03-01 三菱电机楼宇解决方案株式会社 Spring pin dismounting aid and spring pin dismounting method

Similar Documents

Publication Publication Date Title
US4042305A (en) Quick change snap lock connector
US3129630A (en) Blind fastener utilizing a distortable collar and having auxiliary locking means
US3390906A (en) Joint with inherently limited torque level
US3425705A (en) Collet chuck and the like
US9174331B1 (en) Bushing removal tool
US3099876A (en) Tool for removing spring pins
US4688315A (en) Screw extractor and method of using same
US3421404A (en) Expansion bolt assembly
US3253625A (en) Driving bits for non-removable screw fasteners
US2367447A (en) Hose coupling
US2855814A (en) Open end wrench with slidable jaw face
DE2128437C3 (en)
US3550241A (en) Spring pin extraction means
US4402203A (en) Fastener installation tool
US5820314A (en) Tool for centering a punch or drill on a stud's broken face
US3028777A (en) Blind fastener setting wrench
US3217583A (en) Unitary expansion anchor for bolts
US3107570A (en) Fastening device
US2748824A (en) Threaded members carrying resilient deformable locking inserts thereon
US3057631A (en) Tube extractor
US2969994A (en) Lock spring joint
US3471160A (en) Internal pipe wrench
US3543560A (en) Rivet tool
US2273982A (en) Combination wrench and die starter
WO2020016885A1 (en) Nut stopper for loosening prevention