WO2004013498A2 - Device, assembly, and method for holding a piece in a bore - Google Patents

Device, assembly, and method for holding a piece in a bore Download PDF

Info

Publication number
WO2004013498A2
WO2004013498A2 PCT/US2003/023795 US0323795W WO2004013498A2 WO 2004013498 A2 WO2004013498 A2 WO 2004013498A2 US 0323795 W US0323795 W US 0323795W WO 2004013498 A2 WO2004013498 A2 WO 2004013498A2
Authority
WO
WIPO (PCT)
Prior art keywords
bore
piece
bead
sleeve
holding
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.)
Ceased
Application number
PCT/US2003/023795
Other languages
French (fr)
Other versions
WO2004013498A3 (en
Inventor
Zdravko Kovac
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.)
Newfrey LLC
Original Assignee
Newfrey LLC
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 Newfrey LLC filed Critical Newfrey LLC
Priority to AU2003257017A priority Critical patent/AU2003257017A1/en
Publication of WO2004013498A2 publication Critical patent/WO2004013498A2/en
Publication of WO2004013498A3 publication Critical patent/WO2004013498A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
    • F16B5/0208—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread using panel fasteners, i.e. permanent attachments allowing for quick assembly
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
    • F16B19/02—Bolts or sleeves for positioning of machine parts, e.g. notched taper pins, fitting pins, sleeves, eccentric positioning rings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
    • F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
    • F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B41/00—Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002—Measures against loss of bolts, nuts or pins
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/999—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener with retainer, e.g. tether

Definitions

  • This invention relates to a device, assembly, and
  • the retainer which has an outer diameter slightly larger than that of the bore, is pressed into the
  • the workpiece may subsequently be associated
  • the two workpieces may then be securely assembled to each
  • fastener retainers can be
  • the retained fastener may, if inadvertently bumped, slide axially of the retainer without the retainer
  • fastener retainer and method of using the retainer.
  • Fig. 1 is an exploded perspective view showing the use
  • a device e.g., a bolt retainer, and a piece to be held
  • Fig. 2 is a perspective view of a piece-holding device
  • Fig. 3 is a side elevation view of the piece-holding
  • Fig. 4 is an end view of the piece-holding device.
  • Fig. 5 is a sectional view taken along line 4-4 in
  • Fig. 6 is a similar sectional view of a modification.
  • FIGs. 1-5 an embodiment of a device 10
  • fastener engaging structure is constituted by a single internal bead or rib 14 extending circumferentially of the
  • the bead may be formed as a bulge directly on a
  • a slit 18 may be formed along the
  • plurality of bead sections may be formed by providing a
  • the sleeve 12 and the bead 14 are integrally formed of
  • a resilient flexible plastic such as a polyester
  • the sleeve and the bead can be any suitable elastomer.
  • the sleeve and the bead can be any suitable elastomer.
  • the sleeve and the bead can be any suitable elastomer.
  • the sleeve and the bead can be any suitable elastomer.
  • the bead is of substantially
  • the bead is of substantially
  • the innermost portion of the bead defines an inner diameter
  • the shank e.g., thread crests in the case of a bolt
  • the holding power of the retainer to the fastener can be any suitable holding power of the retainer to the fastener.
  • Fig. 1 illustrates the use of a retainer 10 of the
  • the retainer 10 will be pre-assembled with the
  • the outer diameter of the sleeve 12 is slightly
  • sleeve and the bore wall are preferably sufficiently close to one another to avoid buckling of the sleeve within the
  • the bolt 22 may
  • the bodies may be any suitable body
  • the retainer must provide enough strength to keep the bolt
  • a device 10 of the invention may be used as a
  • spacer or a washer may be used in multiples to provide

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bolts, Nuts, And Washers (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Insertion Pins And Rivets (AREA)

Abstract

A device (10) for holding a piece (22) in a bore (24) comprises a cylindrical sleeve (12) constructed to be inserted into the bore and held therein by engagement of its outer surface with an inner surface of the bore, and an annular bead (14) extending circumferentially and inwardly from the inner surface of the sleeve, the bead (14) being disposed to engage an outer surface of a piece inserted into the sleeve. The sleeve and the bead are integrally formed of resilient flexible plastic.

Description

Title: DEVICE, ASSEMBLY, AND METHOD FOR HOLDING A PIECE IN A BORE
CROSS-REFERENCE TO RELATED APPLICATION
This application claims the benefit of Application No.
60/399,704 filed August 1, 2002 incorporated herein by-
reference.
BACKGROUND OF THE INVENTION
This invention relates to a device, assembly, and
method for holding a piece, such as a fastener, in a bore.
The invention will be described in its application to
fastener retainers, but it will become apparent that the
invention has broader utility.
The use of fastener retainers to pre-attach bolts,
studs, or other fasteners to a workpieσe, such as a panel,
in preparation for a subsequent assembly operation is well
known. In a typical general application, a bolt (or other
fastener) is inserted into a plastic annular retainer which
is designed to retain the bolt within a smooth-walled bore
of a workpiece. The retainer, which has an outer diameter slightly larger than that of the bore, is pressed into the
bore, where it is held by resilient frictional engagement
with the bore wall, thus pre-attaching the bolt to the
workpiece. The workpiece may subsequently be associated
with a second workpiece having a threaded bore which is
axially aligned with the bore of the first workpiece, and
the two workpieces may then be securely assembled to each
other by engaging the bolt with the threaded bore of the
second workpiece. See, for example, U.S. Patent Nos. RE
36,164 and 6,039,525.
In a typical specific application, to minimize manual
labor on an engine assembly line where oil pans are
attached by bolts to engine blocks, fastener retainers can
be used to pre-attach bolts to the oil pan, and the
assembly of the oil pan and the bolts in their retainers
can be moved to an assembly line for attachment to an
engine block. Such pre-attachment improves production
efficiency by eliminating the need for manual placement of
the fasteners as parts of the engine assembly operation.
In using fastener retainers, it is often important
that the holding power of the retainer to the fastener and
the holding power of the retainer to the workpiece bore be
such that the retained fastener may, if inadvertently bumped, slide axially of the retainer without the retainer
slipping out of the workpiece bore. It is also desirable
to provide a retainer that accommodates misalignment of
bores and that permits the fastener to be tilted relative
to the axis of the retainer. Furthermore, it is desirable
that the design of the retainer readily accommodate varying
requirements for retainer holding power and varying
fastener and bore diameters, and that the retainer be
capable of being manufactured simply and economically.
SUMMARY OF THE INVENTION
It is an object of the present invention to provide an
improved device, assembly, and method for holding a piece
in a bore, and more particularly, to provide an improved
fastener retainer and method of using the retainer.
It is another object of the invention to provide a
device of the, foregoing type that is readily adaptable to
varying requirements for holding power and that is capable
of being manufactured simply and economically.
It is a further object of the invention to provide a
unique spacer or washer.
The foregoing objects, as well as other aspects,
features and advantages of the invention, will be more fully appreciated from the following description of
preferred embodiments taken in conjunction with the
accompanying drawings .
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is an exploded perspective view showing the use
of an assembly of the invention including a piece-holding
device, e.g., a bolt retainer, and a piece to be held,
e.g. , a bolt.
Fig. 2 is a perspective view of a piece-holding device
according to the invention.
Fig. 3 is a side elevation view of the piece-holding
device .
Fig. 4 is an end view of the piece-holding device.
Fig. 5 is a sectional view taken along line 4-4 in
Fig. 4.
Fig. 6 is a similar sectional view of a modification.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
As shown in Figs. 1-5 an embodiment of a device 10
according to the invention comprises a cylindrical sleeve
12, preferably chamfered at its opposite ends, as shown. A
fastener engaging structure is constituted by a single internal bead or rib 14 extending circumferentially of the
sleeve. The bead may be formed as a bulge directly on a
central portion of the inner surface of the sleeve or may
be connected to the inner surface by an intervening thin
web 16 which allows the bead 14 to be resiliently displaced
more easily. To provide additional flexibility to the bead
structure, a slit 18 may be formed along the
circumferential length of the bead. If desired, a
plurality of bead sections may be formed by providing a
plurality of such slits.
The sleeve 12 and the bead 14 are integrally formed of
a resilient flexible plastic, such as a polyester
elastomer. For example, the sleeve and the bead can be
manufactured by injection molding of a plastic such as high
density polyethylene.
In one embodiment, the bead is of substantially
circular or oval cross-section, as shown in Fig. 5, while
in another embodiment, the bead is of substantially
rectangular cross section, as shown by bead 20 in Fig. 6.
The innermost portion of the bead defines an inner diameter
which is slightly smaller than an outer diameter of the
shank of a fastener to be used with the retainer. Upon
insertion of the fastener into the sleeve, from either end. the shank (e.g., thread crests in the case of a bolt)
engages the bead and displaces the bead slightly axially
and outwardly. The bead resiliently presses against the
fastener shank to hold the fastener within the retainer.
The holding power of the retainer to the fastener can
readily be designed as desired by appropriately selecting
the configuration and dimensions of the bead and/or the web
at the interface of the bead and the inner surface of the
sleeve.
Fig. 1 illustrates the use of a retainer 10 of the
invention (representative of the use of all embodiments)
for holding a bolt 22 in a bore 24 of a body 26.
Typically, the retainer 10 will be pre-assembled with the
bolt 22, and the resulting assembly will then be inserted
into and frictionally engaged with the bore 24 of the body
26, thus pre-attaching the bolt to the body. However, the
retainer may first be pressed into the bore and then the
bolt inserted into the retainer.
The outer diameter of the sleeve 12 is slightly
greater than the inner diameter of the bore 24 to allow for
resilient frictional engagement of the sleeve with the wall
of the bore. The diameters of the outer surface of the
sleeve and the bore wall are preferably sufficiently close to one another to avoid buckling of the sleeve within the
bore, whereby essentially the entirety of the cylindrical
outer surface of the sleeve between the chamfered ends will
be in engagement with the opposed cylindrical inner surface
of the bore .
When the shank 28 of the bolt 22 is pressed into the
retainer 10, the outer surface of the shank (typically the
crests of the threads in the case of a bolt) engages the
bead 14 and thereby deflects the bead axially and slightly
outwardly. As a result, the bead centers the bolt within
the sleeve of the retainer and holds the bolt within the
retainer. As is apparent in Fig. 1, the bolt 22 may
project from the bore 24 of the body 26 for engagement with
a threaded bore 30 of a second body 32, thereby to join the
second body 32 to the first body 26. The bodies may be
panels to be joined, for example.
The construction of the invention accommodates
misalignment of the bolt 22 and the retainer 10 as well as
misalignment of the bodies 26 and 32 to be joined. It is
preferred that the frictional force between the outer
surface of the sleeve 12 of the retainer 10 and the inner
surface of the bore 24 be greater than the frictional force
between the bolt 22 and the retainer 10, so that adjustment of the bolt relative to the retainer does not shift the
retainer relative to the bore. Mechanical characteristics
of the plastic material of the retainer and the design of
the retainer must provide enough strength to keep the bolt
securely in the body 26 in which the bolt 22 and the
retainer 10 are inserted.
While preferred embodiments of the invention have been
shown and described, those skilled in the art will
recognize that various changes can be made without
departing from the principles and spirit of the invention,
the scope of which is defined in the appended claims. For
example, a device 10 of the invention may be used as a
spacer or a washer and may be used in multiples to provide
a group of such devices spaced apart for holding a pin or
stud in a long bore.

Claims

WHAT IS CLAIMED IS:
1. A device for holding a piece in a bore,
comprising:
a cylindrical sleeve constructed to be inserted into
the bore and held therein by engagement of its outer
surface with an inner surface of the bore; and
an annular bead extending circumferentially and
inwardly from the inner surface of the sleeve,
wherein the sleeve and the bead are integrally formed
of resilient flexible plastic.
2. A device according to Claim 1, wherein the bead
has a circular or oval cross-section.
3. A device according to Claim 1, wherein the bead
has a rectangular cross-section.
4. A device according to Claim 1, wherein the bead is
connected to the inner surface of the sleeve by a thin web.
5. A device according to Claim 1, wherein the bead has at least one slot interrupting its circumference.
6. A device according to Claim 1, wherein the ends of
the sleeve are chamfered.
7. A method of holding a piece in a bore of a body
comprising:
providing a piece-holding device having a cylindrical
sleeve constructed to be inserted into the bore and held
therein by engagement of its outer surface with an inner
surface of the bore and having an annular bead extending
circumferentially and inwardly from an inner surface of the
sleeve to engage an outer surface of a piece inserted into
the sleeve, the sleeve and the bead being integrally formed
of resilient flexible plastic;
inserting a piece in the sleeve of the piece-holding
device so that the outer surface of the piece engages the
bead; and
inserting the piece-holding device in the bore so that
the outer surface of the piece-holding device engages the
inner surface of the bore.
8. A method according to claim 7, wherein the piece
is inserted in the piece-holding device and then the device
and the piece are inserted in the bore.
9. A method according to claim 7, wherein the piece-
holding device is inserted in the bore and then the piece
is inserted in the device.
10. A method according to claim 7, wherein the bead is
provided with at least one slot interrupting its
circumference.
11. An assembly including a piece to be held in a bore
and a device in which the piece is inserted for holding a
piece in the bore, wherein the device comprises:
a cylindrical sleeve constructed to be inserted in the
bore and held therein by engagement of its outer surface
with an inner surface of the bore;
and an annular bead extending circumferentially and
inwardly from an inner surface of the sleeve,
wherein the sleeve and the bead are integrally formed
of resilient flexible plastic.
12. An assembly according to Claim 11, wherein the
piece is a bolt.
13. An assembly according to Claim 11, wherein the
bead is positioned centrally within the sleeve.
14. An assembly according to Claim 11, wherein the
ends of the sleeve are chamfered.
15. In combination, a body having a bore therein, a
piece-holding device inserted in the bore, and a piece
inserted and held by the piece-holding device, wherein the
piece-holding device comprises:.
a cylindrical sleeve constructed to be inserted into
the bore and held therein by engagement of its outer
surface with an inner surface of the bore;
and an annular bead extending circumferentially and
inwardly from an inner surface of the sleeve,
wherein the sleeve and the bead are integrally formed
of resilient flexible plastic.
16. A combination according to Claim 15, wherein the
bead has a circular or oval cross-section.
17. A combination according to Claim 15, wherein the
bead has a rectangular cross-section.
18. A combination according to Claim 15, wherein the
bead is connected to the inner surface of the sleeve by a
thin web.
19. A combination according to Claim 15, wherein the
bead has at least one slot interrupting its circumference.
20. A combination according to Claim 15, wherein the
ends of the sleeve are chamfered.
PCT/US2003/023795 2002-08-01 2003-07-30 Device, assembly, and method for holding a piece in a bore Ceased WO2004013498A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003257017A AU2003257017A1 (en) 2002-08-01 2003-07-30 Device, assembly, and method for holding a piece in a bore

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US39970402P 2002-08-01 2002-08-01
US60/399,704 2002-08-01

Publications (2)

Publication Number Publication Date
WO2004013498A2 true WO2004013498A2 (en) 2004-02-12
WO2004013498A3 WO2004013498A3 (en) 2005-01-06

Family

ID=31495755

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/023795 Ceased WO2004013498A2 (en) 2002-08-01 2003-07-30 Device, assembly, and method for holding a piece in a bore

Country Status (3)

Country Link
US (1) US7029219B2 (en)
AU (1) AU2003257017A1 (en)
WO (1) WO2004013498A2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2873772A1 (en) * 2004-08-02 2006-02-03 Renault Sas TEMPORARY HOLDING ASSEMBLY DEVICE AND APPLICATION
FR3084272A1 (en) * 2018-07-25 2020-01-31 Clufix DEVICE FOR HOLDING A ROD COMPRISING A THREADED SECTION

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2873772A1 (en) * 2004-08-02 2006-02-03 Renault Sas TEMPORARY HOLDING ASSEMBLY DEVICE AND APPLICATION
FR3084272A1 (en) * 2018-07-25 2020-01-31 Clufix DEVICE FOR HOLDING A ROD COMPRISING A THREADED SECTION

Also Published As

Publication number Publication date
AU2003257017A1 (en) 2004-02-23
WO2004013498A3 (en) 2005-01-06
US20040109742A1 (en) 2004-06-10
AU2003257017A8 (en) 2004-02-23
US7029219B2 (en) 2006-04-18

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