US2620212A - Locking device - Google Patents

Locking device Download PDF

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Publication number
US2620212A
US2620212A US66959A US6695948A US2620212A US 2620212 A US2620212 A US 2620212A US 66959 A US66959 A US 66959A US 6695948 A US6695948 A US 6695948A US 2620212 A US2620212 A US 2620212A
Authority
US
United States
Prior art keywords
ring
locking device
locking
sleeve
rod
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
US66959A
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English (en)
Inventor
Johansson Karl-Erik Gustav
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US2620212A publication Critical patent/US2620212A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F16B39/00—Locking of screws, bolts or nuts
    • F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
    • F16B39/24—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by means of washers, spring washers, or resilient plates that lock against the object
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
    • F16L27/127—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement with means for locking the longitudinal adjustment or movement in the final mounted position
    • 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
    • Y10S411/955—Locked bolthead or nut
    • Y10S411/965—Locked bolthead or nut with retainer
    • Y10S411/969—Deformable retainer
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7047—Radially interposed shim or bushing
    • Y10T403/7051—Wedging or camming
    • Y10T403/7052—Engaged by axial movement
    • Y10T403/7056—Threaded actuator
    • 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
    • Y10T403/00—Joints and connections
    • Y10T403/70—Interfitted members
    • Y10T403/7062—Clamped members
    • Y10T403/7064—Clamped members by wedge or cam

Definitions

  • This invention relates toadevice for locking, together at least two members, one of. thembeing movable relative to the other, like, for instance, a rod in a sleeve or a. screw bolt in its hole.
  • An object of the invention is to create an effective locking element, and to place same .between two striking surfaces in such a way that it expands when being pressed between said striking surfaces.
  • Another object of the invention is to effect such locking action with a simple device.
  • a third object is to arrange the device so that it may be of all around use in difierent fields, and still another object is to make the lockingprocess itself very simple.
  • One object of this invention is to make the device efiective without the aid of a spring element.
  • Fig. 1 shows a section, axially and longitudinally through the locking device, in this case a rod, movable in a sleeve.
  • Figs. 2 and 3 show a detail in perspective and axially in section respectively, and Figs. 4 and 5 show other details for this embodiment, shown axially in section.
  • Fig. 6 shows a section, axially and longitudinal 1y through the locking device, this time applied to a screw connection
  • Fig. 7 shows a detail seen from the side for this embodiment.
  • Figs. 8-10 show other embodiments, axially, in section.
  • the reference 4 designates the inner part of the rod in Fig. 1, and 3 designates the exterior part or the sleeve in the same figure. This part may of course be made from a pipe of arbitrary length.
  • a slit ring I is placed on the rod and thrust down into an enlargement of the sleeve, and outside the slit ring a screw bushing 2 is screwed into the sleeve 3.
  • the slit ring I is manufactured from a small strip of sheet metal which is cut with a. widev center-portion and tapering end portions bent into the form of a split, ring with top and bottom edges tapering upwardly from the central portion at; angles D. and E, respectively, as shown in Figs. 2 and 3.
  • Fig. l the difierent parts are-shown in unlocked position, i. e. the ring I is resting loosely in the sleeve 3.
  • the locking is done iirthefollowing manner:
  • the inner part, the screw bolt marked as 4a, andthe exterior part, into which the bolt is screwed, is marked 3a.
  • the ring lb is located, the ring being slit and the side elevation of which can be seen in Fig. 7.
  • the shanks are bevelled so that when the bolt is tightened against the ring, it will, by the action of the striking surfaces 5, 8 change its width, and thus will press against the bolt as well as the inside wall of the sleeve. The harder the bolt is tightened, the more effective becomes the locking.
  • Fig. 8 shows three parts 3, 4 and 8, which are locked together by means of locking device lc.
  • Part 3 designates a sleeve
  • part 4 is a rod with shoulder parts 8 and 9 the end of which is threaded. On the threaded part, the threads of which are marked 9a.
  • another rod 8 is screwed which has a corresponding axial screw hole.
  • the locking element I0 is inserted.
  • it also in this embodiment consists of a slit ring, it differs from the one in Fig. 6 in that its edges l2, [3 are parallel to one another.
  • the ring can be cut out of a pipe, along two parallel oblique planes. This ring is cut at It.
  • the parts hecome interlocked in that the rod 8 is forced against the ring lc, by being screwed toward the rod 4, and the ring being jammed between the parts 4 and 8, is tipped downward, causing the ring to expand.
  • the locking ring la shown in Fig. 9 differs somewhat from the one shown in Fig. 8 by being a little more sturdy in appearance, and the striking surfaces la, lb are bevelled. It is forced in between the end surfaces of two sleeves l5, l6
  • Fig. shows how two locking elements, shaped for example as is shown according to Fig. 8, can be combined to effect the locking. They are pressed between two striking surfaces [8, l9 analogous to what has been shown in Fig. 9. They may, as the drawing shows, touch each other.
  • This locking device may be used in many different ways.
  • the embodiment according to Fig. 1 may be used for camera standards, music racks, lamp stands, just to name a few examples, and as for the embodiment shown in Fig. 6, the member 3a does not merely represent a fixed part of a machine, into which the bolt is screwed, but also a nut screwed on to the screw bolt.
  • the embodiment according to Fig. 6 may also be used in many different ways.
  • the rods shown in the drawing may also constitute rotatable spindles.
  • a locking device for securing inner and outer cylindrical members having spaced cylindrical surfaces forming an annular chamber therebetween, one of said surfaces terminating in a shoulder forming one end of said annular chamber, an axially movable member in the annular chamber between said surfaces and having a shoulder forming the other end of said chamber, and a ring disposed in said chamber, said ring being cylindrical in form with two opposite sides axially offset and engageable by the respective shoulders to tilt said ring toward a plane normal to the axis of said cylindrical members in response to '4 axial movement of said last member, one of said sides having an axial width greater than the spacing between said cylindrical surfaces so that the opposed edges thereof engage and exert a clamping action upon said cylindrical surfaces when said side is tilted, the other of said sides being sufliciently narrow in the axial direction to pass freely between said cylindrical surfaces when tilted, whereby the side pressure of the first side of said ring serves to wedge said cylindrical members together,
  • a locking device as set forth in claim 1, in which said ring is formed at said narrow side with a slit to form a pair of resilient shanks tapering in width from the wide side of said ring to the ends of said shanks, said slit being of a width to provide clearance for contraction of said ring under the clamping pressure of said shoulders.
  • a locking device as set forth in claim 1, in which said cylindrical members comprise a rod and sleeve, said first shoulder being formed on said sleeve and said axially movable member being carried by said sleeve.
  • a locking device as set forth in claim. 1, in which said inner member comprises a bolt screwable in said outer member, said first shoul der being formed in said outer member and said second shoulder being formed on said bolt.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)
US66959A 1946-05-31 1948-12-23 Locking device Expired - Lifetime US2620212A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE2620212X 1946-05-31

Publications (1)

Publication Number Publication Date
US2620212A true US2620212A (en) 1952-12-02

Family

ID=20426600

Family Applications (1)

Application Number Title Priority Date Filing Date
US66959A Expired - Lifetime US2620212A (en) 1946-05-31 1948-12-23 Locking device

Country Status (2)

Country Link
US (1) US2620212A (no)
SE (1) SE140643C1 (no)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3395429A (en) * 1965-07-01 1968-08-06 Morse Controls Inc End fittings for push-pull cable cores
EP2724643A1 (en) * 2012-10-25 2014-04-30 Kinnarps Ab Locking device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5340607Y2 (no) * 1973-09-08 1978-09-30
DK154523C (da) * 1984-02-23 1989-05-16 Wassmann Mogens Laasering og anvendelse af laaseringen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189312103A (en) * 1893-06-20 1894-05-05 Edmund Hart Automatic Ring Clutch for Extension Pedestals.
US1326623A (en) * 1919-12-30 Casement-adjuster
US2322949A (en) * 1941-05-22 1943-06-29 Lux Clock Mfg Company Inc Spindle and knob construction
US2430649A (en) * 1945-08-24 1947-11-11 Schulz Herman Tripod

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1326623A (en) * 1919-12-30 Casement-adjuster
GB189312103A (en) * 1893-06-20 1894-05-05 Edmund Hart Automatic Ring Clutch for Extension Pedestals.
US2322949A (en) * 1941-05-22 1943-06-29 Lux Clock Mfg Company Inc Spindle and knob construction
US2430649A (en) * 1945-08-24 1947-11-11 Schulz Herman Tripod

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3395429A (en) * 1965-07-01 1968-08-06 Morse Controls Inc End fittings for push-pull cable cores
EP2724643A1 (en) * 2012-10-25 2014-04-30 Kinnarps Ab Locking device

Also Published As

Publication number Publication date
SE140643C1 (no) 1953-06-02

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