EP0086418A2 - Procedure and tool for mounting elongated cylindrical elements in predrilled holes - Google Patents

Procedure and tool for mounting elongated cylindrical elements in predrilled holes Download PDF

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Publication number
EP0086418A2
EP0086418A2 EP83101100A EP83101100A EP0086418A2 EP 0086418 A2 EP0086418 A2 EP 0086418A2 EP 83101100 A EP83101100 A EP 83101100A EP 83101100 A EP83101100 A EP 83101100A EP 0086418 A2 EP0086418 A2 EP 0086418A2
Authority
EP
European Patent Office
Prior art keywords
hole
sleeve
tool
striker
procedure
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.)
Withdrawn
Application number
EP83101100A
Other languages
German (de)
French (fr)
Other versions
EP0086418A3 (en
Inventor
Nikolai Puolakainen
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.)
Bygg- och Transportekonomi (BT) AB
Original Assignee
Bygg- och Transportekonomi (BT) AB
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 Bygg- och Transportekonomi (BT) AB filed Critical Bygg- och Transportekonomi (BT) AB
Publication of EP0086418A2 publication Critical patent/EP0086418A2/en
Publication of EP0086418A3 publication Critical patent/EP0086418A3/en
Withdrawn legal-status Critical Current

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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
    • B25B27/04—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 keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25C—HAND-HELD NAILING OR STAPLING TOOLS; MANUALLY OPERATED PORTABLE STAPLING TOOLS
    • B25C3/00—Portable devices for holding and guiding nails; Nail dispensers
    • B25C3/006—Portable devices for holding and guiding nails; Nail dispensers only for holding and guiding

Definitions

  • the present invention refers to a procedure for mounting elongated, principally cylindrical elements such as expander pins in predrilled holes, for example.
  • Expander pins are resilient locking pins used for the demountable assembly of various machine elements or mechanical components, e.g. for mounting wheels and the like on shafts.
  • the expanding capability is usually achieved by designing the expander pin as a slotted, springy sleeve of alloy steel which is made resilient by heat treatment.
  • Expander pins are mounted in holes having a diameter less than that of the pin, with the result that the pin is compressed when driven into the hole. Since the pin endeavours to spring back to its normal expanding state it exerts sufficient pressure against the inner surface of the hole to prevent axial movement.
  • FIG. 1 shows a longitudinal cross-section through a tool according to the invention.
  • the tool consists of a sleeve 1 which is provided with an axial through hole 2.
  • a striker 3 is so arranged in the hole 2 that it can move in an axial direction.
  • the end of striker 3 outside the sleeve 1 is designed as an impact head 4.
  • the cylindrical element which in the version shown consists of an expander pin 5 is arranged to be accommodated in the hole 2 at the opposite end of the sleeve 1 to the aforementioned impact head 4.
  • a chiefly radial hole 6 is provided in the sleeve 1 close to the end accommodating expander pin 5.
  • a loosely fitted locking pin 7 which rests against the expander pin.
  • This locking pin is retained and pressed resiliently against the expander pin 5 by a rubber ring 8.
  • the rubber ring 8 is fitted in an annular groove 9 in the surface of sleeve 1 adjacent to the radial hole 6. The resilience of rubber ring 8 is adapted so that expander pin 5 is retained by the friction, even when the tool is pointed downward, but not so that mounting of the pin is noticeably obstructed.
  • a corresponding locking device can be utilized to retain the striker 3 in sleeve 1.
  • a return spring (not shown) can be arranged between the striker and the sleeve to return the striker to the position of rest after each blow. Further, the aforementioned striker can be provided with a means of restricting its outward movement.
  • the spring force applied to expander pin 5 from the side can naturally be arranged in many ways and the version described above is only an example.
  • the tool can also be designed for easy connection to the pneumatic impact tool.
  • the pin 5 When using the tool described above for mounting an expander pin 5 in a predrilled hole, the pin 5 is first fitted in the hole 2 in the sleeve 1. Locking pin 7 is pressed against expander pin 5 by means of rubber ring 8. The sleeve 1 is then applied to the predrilled hole and expander pin 5 is located in its mouth. Impact head 4 is subjected to repeated blows with the effect that the striker 3 strikes expander pin 5 and drives it into the hole.

Abstract

In a procedure for mounting elongated cylindrical elements in predrilled holes the element (5) is first fitted with resilient retention in one end of an axial through hole (2) in a sleeve (1). Accommodated at the other end of the hole (2) is a striker (3). The sleeve (1) with the cylindrical element (5) is applied to the mouth of the predrilled hole and the striker (3) is then subjected to blows so that it strikes the element (5) and drives it into the hole.
A tool for implementing the procedure embraces a sleeve (1) with an axial through hole (2). One end of the hole (2) is arranged to accommodate an elongated striker (3) and the other end to accommodate the cylindrical element (5) which is retained in the sleeve (1) by spring pressure.

Description

  • The present invention refers to a procedure for mounting elongated, principally cylindrical elements such as expander pins in predrilled holes, for example.
  • Expander pins are resilient locking pins used for the demountable assembly of various machine elements or mechanical components, e.g. for mounting wheels and the like on shafts. The expanding capability is usually achieved by designing the expander pin as a slotted, springy sleeve of alloy steel which is made resilient by heat treatment. Expander pins are mounted in holes having a diameter less than that of the pin, with the result that the pin is compressed when driven into the hole. Since the pin endeavours to spring back to its normal expanding state it exerts sufficient pressure against the inner surface of the hole to prevent axial movement.
  • Mounting of expander pins in holes is usually carried out manually by holding the pin at the mouth of the hole and driving it into the hole with a hammer or other impact tool. This form of mounting is time-consuming and troublesome, particularly in confined spaces.
  • With the present invention a procedure and a tool has been achieved which has the effect of substantially facilitating this mounting work. For this purpose the invention has the characteristics specified in the following patent claims.
  • The invention will be described in greater detail in the following with reference to the version shown in the drawing. The figure in the drawing shows a longitudinal cross-section through a tool according to the invention.
  • The tool consists of a sleeve 1 which is provided with an axial through hole 2. A striker 3 is so arranged in the hole 2 that it can move in an axial direction. The end of striker 3 outside the sleeve 1 is designed as an impact head 4. The cylindrical element which in the version shown consists of an expander pin 5 is arranged to be accommodated in the hole 2 at the opposite end of the sleeve 1 to the aforementioned impact head 4.
  • For retaining the expander pin 5 a chiefly radial hole 6 is provided in the sleeve 1 close to the end accommodating expander pin 5. Positioned in the aforementioned hole is a loosely fitted locking pin 7 which rests against the expander pin. This locking pin is retained and pressed resiliently against the expander pin 5 by a rubber ring 8. The rubber ring 8 is fitted in an annular groove 9 in the surface of sleeve 1 adjacent to the radial hole 6. The resilience of rubber ring 8 is adapted so that expander pin 5 is retained by the friction, even when the tool is pointed downward, but not so that mounting of the pin is noticeably obstructed.
  • A corresponding locking device can be utilized to retain the striker 3 in sleeve 1. A return spring (not shown) can be arranged between the striker and the sleeve to return the striker to the position of rest after each blow. Further, the aforementioned striker can be provided with a means of restricting its outward movement.
  • The spring force applied to expander pin 5 from the side can naturally be arranged in many ways and the version described above is only an example.
  • The tool can also be designed for easy connection to the pneumatic impact tool.
  • When using the tool described above for mounting an expander pin 5 in a predrilled hole, the pin 5 is first fitted in the hole 2 in the sleeve 1. Locking pin 7 is pressed against expander pin 5 by means of rubber ring 8. The sleeve 1 is then applied to the predrilled hole and expander pin 5 is located in its mouth. Impact head 4 is subjected to repeated blows with the effect that the striker 3 strikes expander pin 5 and drives it into the hole.

Claims (10)

1. A procedure for mounting elongated, principally cylindrical elements such as expander pins (5) in predrilled holes, for example, characterized in that the element (5) before mounting is fitted and resiliently retained in one end of an axial through hole (2) in a sleeve (1) the other end of which is occupied by a striker (3) and said sleeve (1) then being applied to an object with the element (5) against a predrilled hole, following which the striker (3) is subjected to impacts so that it strikes the element (5) and drives it into the aforementioned predrilled hole.
2. A procedure as in Claim I, characterized in that the sleeve (1) is fitted to a pneumatic impact tool for achieving blows on the striker (3).
3. A tool for mounting elongated, principally cylindrical elements such as expander pins (5) as in the procedure in Claim 1, characterized by a sleeve (1) provided with an axial through hole (2) one end of which is arranged to accommodate a striker (3) and the other end to accommodate and resiliently retain the aforementioned cylindrical element (5).
4. A tool as in Claim 3, characterized in that the sleeve (1) close to the end accommodating the element (5) is designed with a mainly radial hole (6) which extends inward to the through hole (2) in the sleeve (1) in which hole a resilient device (7) is arranged to press against the element (5) with a force so adapted that the element (5) is retained even when the sleeve (1) is in a vertical position but so that movement of the element is not noticeably prevented in connection with mounting.
5. A tool as in Claim 4, characterized by an annular groove (9) in the surface of the sleeve (1) close to the radial hole (6) in which groove (9) a resilient ring (8) is arranged to press a loosely fitted locking pin (7) present in the hole (6) against the element (5) for the purpose of retaining it.
6. A tool as in Claim 5, characterized in that the resilient ring (6) is of rubber.
7. A tool as in any of Claims 3-6, characterized in that the striker (3) is provided with a means of restricting its outward movement.
8. A tool as in Claim 7, characterized in that the striker (3) is designed with an impact head (4) situated outside the hole (2) which serves as a stop to interrupt the movement of the striker (3) into the sleeve (1).
9. A tool as in any of Claims 3-8, characterized in that a return spring is arranged to counteract the movement of the striker (3) into the sleeve (1).
10. A tool as in any of Claims 3-9, characterized in that it is designed to be connected to a pneumatic impact tool.
EP83101100A 1982-02-11 1983-02-07 Procedure and tool for mounting elongated cylindrical elements in predrilled holes Withdrawn EP0086418A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8200827 1982-02-11
SE8200827A SE8200827L (en) 1982-02-11 1982-02-11 PROCEDURE AND TOOLS FOR FITTING LONG-TERM CYLINDRICAL ELEMENTS IN PREVENTED HALLS

Publications (2)

Publication Number Publication Date
EP0086418A2 true EP0086418A2 (en) 1983-08-24
EP0086418A3 EP0086418A3 (en) 1984-09-12

Family

ID=20345982

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83101100A Withdrawn EP0086418A3 (en) 1982-02-11 1983-02-07 Procedure and tool for mounting elongated cylindrical elements in predrilled holes

Country Status (2)

Country Link
EP (1) EP0086418A3 (en)
SE (1) SE8200827L (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1506844A1 (en) * 2003-08-12 2005-02-16 The Goodyear Tire & Rubber Company Tire sensor insertion tool and method
CN103978460A (en) * 2014-05-23 2014-08-13 安徽江淮汽车股份有限公司 Retractor assembling and disassembling tool
CN106985121A (en) * 2017-04-30 2017-07-28 桂林电子科技大学 A kind of crushing type nail servicing unit that can repeatedly utilize and its method of work
CN110270964A (en) * 2019-06-24 2019-09-24 中国五冶集团有限公司 It is a kind of for assist tap nail nail barrel

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839754A (en) * 1957-03-22 1958-06-24 Elmer F Pfaff Fastener driving tool
US2973520A (en) * 1959-06-16 1961-03-07 Star Prec Devices Inc Small diameter stud adapter
US3036482A (en) * 1960-09-02 1962-05-29 Kenworthy Kenneth Axial-impact type hand tool
US3788537A (en) * 1972-07-31 1974-01-29 Mechanical Applic Inc Hand-loaded pin chuck
FR2291001A2 (en) * 1974-11-18 1976-06-11 Chatard Henri Piston cylinder unit for securing nails during rotary drive - has elastic sleeve nose locating nail gripping ball bearing
US3979978A (en) * 1974-05-15 1976-09-14 Smolik Robert A Nail setting tool

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2839754A (en) * 1957-03-22 1958-06-24 Elmer F Pfaff Fastener driving tool
US2973520A (en) * 1959-06-16 1961-03-07 Star Prec Devices Inc Small diameter stud adapter
US3036482A (en) * 1960-09-02 1962-05-29 Kenworthy Kenneth Axial-impact type hand tool
US3788537A (en) * 1972-07-31 1974-01-29 Mechanical Applic Inc Hand-loaded pin chuck
US3979978A (en) * 1974-05-15 1976-09-14 Smolik Robert A Nail setting tool
FR2291001A2 (en) * 1974-11-18 1976-06-11 Chatard Henri Piston cylinder unit for securing nails during rotary drive - has elastic sleeve nose locating nail gripping ball bearing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1506844A1 (en) * 2003-08-12 2005-02-16 The Goodyear Tire & Rubber Company Tire sensor insertion tool and method
US7021164B2 (en) 2003-08-12 2006-04-04 The Goodyear Tire & Rubber Company Tire sensor insertion tool and method
CN103978460A (en) * 2014-05-23 2014-08-13 安徽江淮汽车股份有限公司 Retractor assembling and disassembling tool
CN106985121A (en) * 2017-04-30 2017-07-28 桂林电子科技大学 A kind of crushing type nail servicing unit that can repeatedly utilize and its method of work
CN106985121B (en) * 2017-04-30 2023-03-10 桂林电子科技大学 Crushing type nail auxiliary device capable of being used repeatedly and working method thereof
CN110270964A (en) * 2019-06-24 2019-09-24 中国五冶集团有限公司 It is a kind of for assist tap nail nail barrel

Also Published As

Publication number Publication date
EP0086418A3 (en) 1984-09-12
SE8200827L (en) 1983-08-12

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Inventor name: PUOLAKAINEN, NIKOLAI