• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A three piece blind fastener of the kind comprising a tubular nut having a head at one end and a tapered nose at the other end, an expansible sleeve, and a headed bolt threadedly engaged with the nut for forcing the sleeve on to the nose of the nut to form a blind head, has the thread of the nut provided with a locking zone in which the bore of the nut is constricted and, in cross sectional shape, a closed non-reentrant non-circular curve so that the nut resiliently interferes with the bolt. A die, and a method of providing the nut with the locking zone by means of the die are disclosed. The die has a tapered aperture having a cross sectional shape corresponding to the desired shape of the locking zone, and the method involves forcing the tapered nose of the nut into the aperture so as to constrict the bore, in a zone spaced from its ends, to the desired extent and impose the non-circular cross sectional shape on the constricted zone.
    公开号:SU1435161A3
    申请号:SU823514496
    申请日:1982-11-17
    公开日:1988-10-30
    发明作者:Филип Джил Харви
    申请人:Авдел Лимитед (Фирма)；
    IPC主号:
    专利说明:

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    The invention relates to mechanical engineering.
    The purpose of the invention is to increase the reliability of the stopper.
    FIG. 1 shows the threaded connection during assembly; in fig. 2 - the same, assembled; in fig. 3 shows section A-A in FIG. one; figure 4 is a nut with a shank; in fig. 5 - expansion sleeve; in fig. 6 bolt; in fig. 7 is an enlarged portion of the longitudinal section of the threaded joint; in fig. 8 - a bolt with a modified head; in fig. 9 - p is the preferred option for the configuration of the shank of the nut in the locking section with diametral chords of the same length.
    The countersunk clamp contains a bolt 1 with a head 2 and a tear-off shank 3 mounted on the bolt expansion sleeve 4 and a hex nut 5 with a shank 6. Shank 6 has a tapered part 7 at the end. The nut is made with a cylindrical screw thread 8 along the entire channel and the locking section 9 in the constricted part of the shank, the nut, has a non-circular shape in cross section.
    The expansion sleeve 4 is a hollow cylinder with an outer diameter approximately equal to the dia-, meter of the REIKI cylindrical shank, and the inner chamfers for entering
    constricted part of the shank.
    The bolt head is made with elements 10 of the engagement of the front key. In the case of a bolt with a cylinder head 11 of a cylindrical shape, the engagement elements 12 are in the form of slots for a screwdriver.
    Broken shank 3 bolts. Has a turnkey 13 fins to facilitate grip and rotation of the bolt. The shank 3 is separated from the main bolt by a bursting neck 14.
    The thread at the bolt and nut has a generally Y-shape and is smoothed at the top and bottom.
     The locking section may be completely or partially located in the constricted part of the nut shank. The length of the locking portion corresponds to approximately two thread pitch. The locking portion is made at a distance from the end of the nut at least equal to the thread pitch. This makes it easier for the bolt b to enter the nut hole during assembly.
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    Stop part; the nuts are formed by curvilinear surfaces adjoining each other, located at the same angle to the nut axis, and the stop section is limited by a closed curve 15 with a constant length of all diametral chords (X, Y, etc.), which excludes the possibility of re-insertion of the bolt into it . The length of the non-circular perimeter of the channel in the stop zone is less than the circumference of the channel outside the stop zone.
    The nut is mounted on the bolt with the possibility of its locking section interacting with the surface of the bolt in no more than five areas around the circumference, and each of the arcuate surfaces ABC of the locking section must elastically interact with the bolt.
    Before assembling the joint, the constricted part 7 of the shank of the nut is shaped so that the channel section is described by a non-circular curve with diametrical chords of constant length.
    A bolt sleeve is put on the bolt and the bolt is screwed on the side of the shank of the nut until the broken part protrudes from the head end of the nut. Then, the assembled clamp is inserted into the coaxial holes of the parts to be joined so that the nut head is pressed towards one side of the parts, and the narrowed part of the nut shank protrudes on the opposite side. The clamp is installed by gripping the protruding tear-off part and rotating the bolt relative to the nut in this way, thanks to the threaded engagement between the nut and the bolt, the head of the bolt moves towards the nut shank, pulls the sleeve onto the tapered portion of the shank, with the result that the sleeve expands to form secret head from the opposite side of the part.
    The torque is applied to the bolt until the parts are tightly compressed. When the torque limit for a breaking neck is exceeded, the latter breaks, leaving the main part of the bolt in the fixed clamping piece, the breakable shank is removed.
    Blind clamps of this type are made of high-strength materials and are used in aircraft industry when assembling aircraft parts and
    air vehicles. The thread on the retainer section of the nut rests elastically in conjunction with the bolt, thus ensuring a secure fit.
    Formula 3 and Breasts
    completely placed in the constricted part of the shank of the nut.
    4. Clamp according to claim 1, characterized in that the locking portion of the nut is formed by adjoining curvilinear surfaces.
    5. Clamp according to claim 1, characterized by the fact that the nut is installed1. A countersunk clamp containing three p bolts with the possibility of interaction: a bolt having a rod with the screw of its stop section with surface cutting, a head on one bolus of a bolt no more than five rods and a broken shank , areas around the circumference. connected to the other end of the rod b. Clamp according to claim 1, distinguished by using a bursting neck, and installed with the fact that the nut is installed on the bolt, the expansion sleeve is for those with the possibility of interaction and the nut with a cylindrical shank, narrowed at the end, having a linear channel with an internal screw thread and a stopper section, while the expansion sleeve is located on the bolt rod between the head and the narrowed part of the nut shank, which differs from that in the chain of reliability and stability, the channel in the area of the stopper has a non-circular cross section the shape and part of the stop portion is narrowed down
    Noah part of the shank of the nut.
    2. Clamping Claim .1, characterized in that the locking portion is made at a distance from the end of the nut at least equal to the thread pitch.
    3. Clamp according to claim 1, which differs from that the stop section
    S / 4 /
    VIA of its locking section with the surface of the bolt in three zones around the circumference.
    7. Clamp on PP. 5 and 6, characterized in that the curved surfaces are located at the same angle to the axis of the nut.
    8. Clamp pop. 1, differs by the fact that the section of the stop section of the nut is limited by a closed curve with a constant length of diametral chords.
    9. Clamped according to Claim 1, characterized in that the circumference of the channel in the stop portion is shorter than the circumference of the channel outside this portion.
    10. Clamp according to claim 1, characterized in that the head of the bolt is engaged with turnkey engagement elements.
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    权利要求:
    Claims (10)
    [1]
    Formula invented
    1. Concealed clip containing · parts: a bolt having a shaft with: fresh thread, a head on one: the shaft of the shaft and a torn shaft connected to the other end of the shaft with a burst neck, and an expansion sleeve and a nut with a cylindrical shaft mounted on the bolt, narrowed at the end, having a straight channel with internal screw thread and a locking portion, while the expansion sleeve is located on the bolt shaft between the head and the narrowed part of the nut shank, characterized in that, with a chain of increase. locking, the channel in the locking zone is non-circular in cross section, and the locking portion of the completed portion of the nut shank.
    three winters have a part in narrowed down 10
    [2]
    2. Clamp according to claim. 1, with the fact that the locking portion is made at a distance from the end of the nut at least equal to the thread pitch.
    [3]
    3.
    U and y.
    Pop clip 1, characterized in that the locking portion
    Pop clip 1, characterized in that the locking portion is formed by mating between curved surfaces. Pop clip 1, characterized in that the nut is installed with a bolt with the possibility of interaction between the retaining section and the surface of five 'with a surface surrounded by a curvilinear curve 1435161 4 completely located in the narrowed part of the nut shank.
    [4]
    4.
    u nuts
    [5]
    5.
    u and: th on pressure
    ‘.’With the bolt no more than zones around the circumference.
    [6]
    6. Clamp pop. 1, characterized in that the nut is mounted “on the bolt” with the possibility of the interaction of its locking portion with the bolt in three eons.
    [7]
    7. The clamp according to paragraphs. 5 and 6, characterized in that the surfaces are located at the same angle to the axis of the nut.
    _
    [8]
    8. Clamp pop. 1, characterized in that the cross section of the locking portion of the nut is limited by a closed curve with a constant length of diametrical chords.
    [9]
    9. Clamp pop. 1, characterized in that the circumference of the channel at the stop section is less than the circumference of the channel outside this section
    [10]
    10.: nd and the key is full.
    The clamp according to claim 1, characterized in that the head of the bolt you are ·, with engagement elements under
    FIG. 1 • 1435161
    Fog. 7
    Fie. 9
    类似技术:
    公开号 | 公开日 | 专利标题
    SU1435161A3|1988-10-30|Countersunk clamp
    US4898505A|1990-02-06|Expansion dowel assembly with an expansion cone displaceable into an expansion sleeve
    US3262353A|1966-07-26|Blind fastener
    US4656806A|1987-04-14|Expansion anchor assembly
    US3411398A|1968-11-19|Blind fastener
    US3643544A|1972-02-22|High-strength structural blind fastener for use in airplanes, rockets and the like
    RU2215914C2|2003-11-10|Fastening system with having free travel till tightening torque
    US4408936A|1983-10-11|Torque-limited threaded locking fastener, and method for setting the same
    US3724315A|1973-04-03|Extruding screw
    US4607992A|1986-08-26|Expansion dowel assembly with a spherically shaped spreader
    US2863351A|1958-12-09|Expanding fastener having threads of opposite hand to maintain the parts in engagement
    KR830004517A|1983-07-13|Mining Roofing Bolts
    US1969796A|1934-08-14|Separable fastener and installation thereof
    US3414304A|1968-12-03|Apparatus for fastening a discontinuous body to another structure and the resulting joint
    US2456203A|1948-12-14|Coupling for tubular members
    US4874275A|1989-10-17|Secure three-piece threaded fastener, and method
    US5697746A|1997-12-16|Screw-nut fastener assembly
    KR880700176A|1988-02-20|Variable clamp fasteners for fixing objects and how to use the clamp
    US5288190A|1994-02-22|Expansion dowel assembly
    US4993900A|1991-02-19|Anchor member secured in place by a permanently hardenable mass
    US2915934A|1959-12-08|Blind fastener with expansible collar and thread lock means
    US3267792A|1966-08-23|Torque limited hex nut
    US3199816A|1965-08-10|Pipe-mounting device
    US4767248A|1988-08-30|Fastener for securing panels of composite materials
    US4681496A|1987-07-21|Reusable and adjustable fastener for use with power tool applicator
    同族专利:
    公开号 | 公开日
    GB2113791B|1985-07-31|
    FR2516611A1|1983-05-20|
    GB2113791A|1983-08-10|
    IT8249508D0|1982-11-17|
    US4589155A|1986-05-20|
    DE3242009A1|1983-06-09|
    US4699552A|1987-10-13|
    DE3242009C2|1991-03-07|
    IT1148468B|1986-12-03|
    FR2516611B1|1988-09-16|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    CA601865A|1960-07-19|L. Hopkins Howard|Blind fastener|
    US332540A|1885-12-15|Nut-lock |
    US2286982A|1940-06-25|1942-06-16|United Carr Fastener Corp|Locking nut|
    US2333290A|1943-02-23|1943-11-02|Clare L Brackett|Nut and method of making same|
    US2765699A|1952-08-09|1956-10-09|Torre Joseph La|Blind bolt utilizing distortable collar and deformable locking nut member|
    US2923339A|1957-11-25|1960-02-02|Harold J Skidmore|Lock nut having external projections deformed radially inwardly|
    US3085463A|1959-11-27|1963-04-16|Elastic Stop Nut Corp|Deformable tubular fastener with external tapping threads|
    US3129630A|1960-12-14|1964-04-21|Hi Shear Corp|Blind fastener utilizing a distortable collar and having auxiliary locking means|
    US3245096A|1962-02-23|1966-04-12|Long Lok Corp|Self-locking screw|
    US3295580A|1964-07-06|1967-01-03|Lamson & Sessions Co|Fastener having concave locking fins|
    US3461470A|1966-07-07|1969-08-19|Fastron Co|Thread-forming screw and method of making the same|
    FR1518944A|1967-02-16|1968-03-29|Nat Screw & Mfg Company|Mechanical assembly device|
    US3434262A|1967-09-08|1969-03-25|Nat Screw & Mfg Co The|Blind fastener for sandwich panel and method|
    US3643544A|1969-02-27|1972-02-22|Nat Screw & Mfg Co The|High-strength structural blind fastener for use in airplanes, rockets and the like|
    FR2177202A5|1972-03-23|1973-11-02|Simmonds Sa|
    CA1117330A|1978-11-13|1982-02-02|Erwin C. Witte|Self-locking nut|
    GB2038978B|1978-12-11|1983-02-09|Avdel Ltd|Locking of blind fasteners|
    US4352219A|1979-03-05|1982-10-05|Mcmurray John C|Prevailing torque lock nut and method of forming same|
    US4291737A|1979-03-05|1981-09-29|Russell, Burdsall And Ward Corporation|Prevailing torque lock nut and method of forming same|GB8400345D0|1984-01-06|1984-02-08|Avdel Ltd|Blind fastener|
    GB2156025A|1984-03-14|1985-10-02|Avdel Ltd|Self locking blind fasteners|
    US4747204A|1985-10-04|1988-05-31|Monogram Industries, Inc.|Method of installing drive nut blind fasteners with cap nuts|
    ES2030227T3|1988-03-17|1992-10-16|The B.F. Goodrich Company|A BLIND BRA.|
    US4990042A|1989-09-05|1991-02-05|Szayer Geza J|Self-drilling blind setting rivet|
    FR2652395B1|1989-09-28|1992-01-31|Otalu Sa|REMOVABLE CRIMP BOLT, METHOD OF FIXING TWO WORKPIECES USING THIS BOLT AND METHOD OF DISASSEMBLY THEREOF.|
    US5098238A|1990-12-20|1992-03-24|Hi-Shear Corporation|Fastener with internal threaded installation means|
    US5178502A|1991-05-24|1993-01-12|Huck International, Inc.|High strength blind bolt|
    US5213460A|1991-05-24|1993-05-25|Huck International, Inc.|High strength blind bolt with uniform high clamp over an extended grip range|
    GB2260586A|1991-10-18|1993-04-21|Ford Motor Co|"component provided with rivet portion"|
    CA2128172C|1993-08-27|1997-05-13|Alan R. Miklos|Self-seating connector adapter|
    US5603592A|1994-10-03|1997-02-18|Huck International, Inc.|High strength blind bolt with uniform high clamp over an extended grip range|
    GB9816962D0|1998-08-04|1998-09-30|Dall Vagn E|Lockable screw assembly|
    US6036418A|1998-08-12|2000-03-14|Monogram Aerospace Fasteners, Inc.|Self-expanding blind fastener with mechanical lock|
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    DE19839640B4|1998-08-31|2004-12-23|Siemens Ag|Motor with a spherical bearing that can be fixed in a bearing seat with axial play adjustment for a rotor shaft and method for axial play adjustment for a rotor shaft|
    US6490905B1|2000-11-06|2002-12-10|Alliance Automation Systems|Spin pull module for threaded inserts|
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    WO2003000455A1|2001-06-21|2003-01-03|Black & Decker Inc.|Method and apparatus for fastening steel framing with a spin weld pin|
    US6851167B2|2003-04-30|2005-02-08|Pem Management, Inc.|Method for installing blind threaded inserts|
    WO2007082077A1|2006-01-11|2007-07-19|Fatigue Technology, Inc.|Bushing kits, bearings, and methods of installation|
    WO2008144440A2|2007-05-15|2008-11-27|Fatigue Technology, Inc.|Blind installed expandable collar and threaded inner member|
    EP2417369B1|2009-04-10|2014-04-02|Fatigue Technology, Inc.|Installable assembly having an expandable outer member and a fastener with a mandrel|
    BRPI1011106A2|2009-06-12|2018-02-06|Sieber Forming Solutions Gmbh|A process and device for producing elongated metal components with spiral grooves, particularly twist drills or worm screws.|
    WO2011084624A2|2009-12-16|2011-07-14|Fatigue Technology, Inc.|Modular nut plate assemblies and methods of using the same|
    WO2012167136A2|2011-06-03|2012-12-06|Fatigue Technology, Inc.|Expandable crack inhibitors and methods of using the same|
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    US8961086B2|2011-09-14|2015-02-24|John D. Pratt|Fastener and method of installing same|
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    US9482115B2|2012-08-23|2016-11-01|United Technologies Corporation|Turbine engine support assembly including self anti-rotating bushing|
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    CA2884986C|2014-04-04|2017-11-28|Douglas Couvertier Ii|Chicago/barrel bolt door stop|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8134740|1981-11-18|
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