US1885694A - Lock nut - Google Patents

Lock nut Download PDF

Info

Publication number
US1885694A
US1885694A US606483A US60648332A US1885694A US 1885694 A US1885694 A US 1885694A US 606483 A US606483 A US 606483A US 60648332 A US60648332 A US 60648332A US 1885694 A US1885694 A US 1885694A
Authority
US
United States
Prior art keywords
nut
lock
thread
limbs
web
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
US606483A
Inventor
Dyckerhoff Adolf
Original Assignee
Dyckerhoff Adolf
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
Priority to DE349541X priority Critical
Priority to DED60966D priority patent/DE547940C/en
Application filed by Dyckerhoff Adolf filed Critical Dyckerhoff Adolf
Application granted granted Critical
Publication of US1885694A publication Critical patent/US1885694A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B39/00Locking of screws, bolts or nuts
    • F16B39/22Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/28Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
    • F16B39/38Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt with a second part of the screw-thread which may be resiliently mounted
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B37/00Nuts or like thread-engaging members
    • F16B37/02Nuts or like thread-engaging members made of thin sheet material
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/924Coupled nut and bolt
    • Y10S411/926Positive lock
    • Y10S411/928Thread gripper

Description

Patented Nov. 1, 1932 UNITED STATES PATENT OFFICE LOCK NUT Application filed April 20, 1932, Serial No. 606,4 83, and in Germany April 22, 19 31.
This invention relates to a lock-nut consisting of a U-shaped stirrup in which the threaded holes of two U-limbs are displaced parallel to one another. The lock-nut has given very good results in practice and has been found very resistant to vibration. The lock-nut has been especially effective when the force was applied near to the web connecting the two U-limbs. The point of application of the releasing force, however, depends on chance and cannot be controlled.
The present invention is to improve such a lock-nut in such a manner that the point of application of the force which tends to 5 release it will be directed to a point close to the web. With this object in view, the axis of the thread cut in the holes of both limbs is slightly inclinedtoivards the lower edge.
of the web. The result is thereby obtained that the lower limb of the lock-nut always first touches the upper side of the supporting nut with itslower edge and at this point bears against it with the greatest pressure. The force tendihg to loosen it will, therefore, always be applied first at this point. This .force then acts in an axial direction on the web without tending to bend the bolt.
A further advantage of this construction of the lock-nut lies in the fact that a more 0 secure adhesion of the thread holes to the bolt, such as would arise on account of the displacement of the holes, is obtained even when the threads of the bolt and the locknut have reached or even fallen below, or exceeded, the minimum and maximum values respectively of the permissible tolerances. In this case the lateral play, which would occur between the bolt and the lock-nut, is avoided at least in part by the inclination of the axis to the thread.
In connection with two-limbed lock-nuts, it has already been proposed to bend one limb towards the other so that the hole in the bent limb is inclined to that in the other limb.
This direction, however, does not run towards the lower edge of the web connecting the two limbs, and this nut cannot, therefore, give the same results as the nut according to the invention.
0 A lock-nut according to the invention, to-
ether with a device suitable for making it, is lllustrated by way of example in the accompanying drawing.
Fig. 1 shows a part of the device on an en'- larged scale, 55 Fig. 2 is a side elevation and plan of the device. 7
The lock-nut consists of two parallel U- limbs a and b which are connected together by a web a. The two limbs have holes (1 and e in which continuous threads are cut.
According to the invention for cutting the .thread, according to the invention, the locknut is placed on an oblique surface of a support U. The angle of inclination a of this oblique surface corresponds to the inclination of the axis of the thread. The lock-nut must be placed on the support in such a manner that its web is .at the lowest part so that the inclination of the thread runs towards 7 the lower edge 'of the axis X-X of the thread. For cutting the thread, a tool S of suitable construction is used. After the thread has been cut, the nut is removed from the support and its two holes are displaced by twisting the limbs. The displacement is eiiected in a direction parallel to the web.
The angle of inclination a. is not shown to a scale on the drawing but is exaggerated for the sake of clearness. v p
In Fig. 2 the device for cutting the thread is shown on a smaller scale. It will be seen that a clamping cheek B, which can be displaced by means of an eccentric E and which engages the nut, is arranged on the support U.
What I claim is:
A lock-nut consisting of a U-shaped stirrup in which the threaded holes of the two U- limbs are displaced parallel to one another, characterized by the feature that the axis of the thread in the holes of the limbs is inclined towards the lower edge of the web oining the two limbs so that when the nut is screwed up it first touches the workpiece or the supporting nut at the side nearer to the web.
In testimony whereof I have signed my name to this specification.
ADOLF DYGKERHOFF.
US606483A 1928-11-22 1932-04-20 Lock nut Expired - Lifetime US1885694A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE349541X 1928-11-22
DED60966D DE547940C (en) 1928-11-22 1931-04-23 Screw locking

Publications (1)

Publication Number Publication Date
US1885694A true US1885694A (en) 1932-11-01

Family

ID=25828336

Family Applications (1)

Application Number Title Priority Date Filing Date
US606483A Expired - Lifetime US1885694A (en) 1928-11-22 1932-04-20 Lock nut

Country Status (5)

Country Link
US (1) US1885694A (en)
DE (4) DE482691C (en)
FR (2) FR637325A (en)
GB (2) GB286120A (en)
NL (1) NL20360C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2422833A (en) * 1943-05-17 1947-06-24 Ronald D King Stiff nut
US2443066A (en) * 1943-11-17 1948-06-08 Charles B Breedlove Threaded fastener of the anchor boot type
DE3121771C2 (en) * 1981-05-26 1990-05-31 Mecano-Simmonds Gmbh, 6900 Heidelberg, De
FR2583470B1 (en) * 1985-06-12 1988-01-29 Rapid Sa Nut
CN110319103A (en) * 2018-03-29 2019-10-11 罗章平 Automatic anti-loosing screw nut and dedicated dismantling device

Also Published As

Publication number Publication date
DE490310C (en) 1930-01-27
GB349541A (en) 1931-05-21
FR37523E (en) 1930-12-20
NL20360C (en)
GB286120A (en) 1928-03-01
FR637325A (en) 1928-04-27
DE547940C (en) 1932-04-06
DE482691C (en) 1929-09-18
DE465058C (en) 1928-09-06

Similar Documents

Publication Publication Date Title
US2533894A (en) Turnbuckle or the like
US1885694A (en) Lock nut
US1229560A (en) Screw.
US2231130A (en) Self-locking nut
US5190424A (en) Bolt for use with resin clips
US1345358A (en) Clamping device
US2213353A (en) Nut
US2196637A (en) Lock nut
US2383164A (en) Mechanical nut
US518474A (en) Fredrick b
US2154174A (en) Deformable self-locking nut
US1832060A (en) Nut lock
US1946860A (en) Self locking thread system
US2007011A (en) Spring nut
US2529854A (en) Combination lock nut and washer
US1134520A (en) Nut-lock.
US2462976A (en) Hose clamp
US1968340A (en) Scythe
US2235405A (en) Grip nut
US2014231A (en) Washer
US1804058A (en) Screw nut
US1322082A (en) Compression-band
SU13485A1 (en) Tool to prevent unscrewing the nut
US905780A (en) Nut-lock.
US894693A (en) Nut-lock.