EP0739056A2 - Eléments avec un système de sécurité antirotation - Google Patents

Eléments avec un système de sécurité antirotation Download PDF

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Publication number
EP0739056A2
EP0739056A2 EP96103519A EP96103519A EP0739056A2 EP 0739056 A2 EP0739056 A2 EP 0739056A2 EP 96103519 A EP96103519 A EP 96103519A EP 96103519 A EP96103519 A EP 96103519A EP 0739056 A2 EP0739056 A2 EP 0739056A2
Authority
EP
European Patent Office
Prior art keywords
flange
support body
ring
spring
knurling
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.)
Granted
Application number
EP96103519A
Other languages
German (de)
English (en)
Other versions
EP0739056A3 (fr
EP0739056B1 (fr
Inventor
Safa Kirma
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.)
Airbus Operations GmbH
Original Assignee
Airbus Operations GmbH
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 Airbus Operations GmbH filed Critical Airbus Operations GmbH
Publication of EP0739056A2 publication Critical patent/EP0739056A2/fr
Publication of EP0739056A3 publication Critical patent/EP0739056A3/fr
Application granted granted Critical
Publication of EP0739056B1 publication Critical patent/EP0739056B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/622—Screw-ring or screw-casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/639—Additional means for holding or locking coupling parts together, after engagement, e.g. separate keylock, retainer strap

Definitions

  • the invention relates to a component with rotatable sub-elements, in particular in aircraft construction, the detachable screwable connection of which can be locked with an anti-rotation device. It ensures the unintentional loosening of the screwed connection due to external influences.
  • a coupling is used as a connecting element for portable connecting or extension lines when performing electromechanical installations. Electrical cable routings are connected to other electrical systems by means of couplings or to device or device groups.
  • a coupling usually has a screw mechanism that secures line connections or line connections coupled with suitable locking elements against unintentional loosening. Since, for reasons of supply reliability and mechanical and electrical safety, no system failure is desired for these couplings, because an interruption of the coupled or connected components means a complete system failure, the safety mechanism of a line protection system should endanger the operational safety of the overall system due to unintentional self-release of the components Exclude external mechanical influences. Couplings for the specified purpose are also included in the electrical protection measure, which also includes protection against lightning strikes on aircraft.
  • a resilient locking element which is connected to a union nut via a U-shaped locking lever, engages in the grid of a socket referred to as a connecting part.
  • the area of the grid is covered with teeth that have tooth flanks.
  • the tooth flanks are designed as rising flanks and locking flanks.
  • the run-up flanks have a small rise angle and the locking flanks have a steep rise angle, the locking flanks being arranged essentially perpendicular to the tangent lying against the grid.
  • the locking lever fixed to the locking element has a wedge attachment set at right angles and called a taper, which engages radially in the area of the catch.
  • EP 0 311 338 discloses a solution in which parts of an electrical connector form a mechanical connector locking device.
  • the (combined) arrangement is made up of the main components: socket and pin plugs, one using the various functional sub-elements (ring-shaped corrugated strips with teeth; several ratcher pins arranged coaxially on the inside diameter of a union nut; ring with internal teeth; rings) one on the socket connector coaxially arranged union nut is secured against rotation.
  • the loosening of the union nut on a coupled plug connection is to be prevented.
  • a strip which is provided with corrugated teeth, is arranged on the circumference of the outer diameter of the pin connector.
  • the union nut which receives the mentioned ratcher pins, is secured at its right (free) end by means of a ring (referred to as an annular cover) and a retaining ring (arranged after this ring). With this combination, the union nut is secured against (twisting). According to this solution (also) no step fine adjustment or continuous fine adjustment of a union nut secured against rotation can be realized.
  • the invention has for its object to provide a generic component with a rotation lock of their screwed parts so that the setting of the predetermined torque of the mutually rotatable connector parts is ensured by a fine adjustment of the rotation lock, the screwed connector parts at the common point of contact a low electrical Achieve contact resistance. It is intended to improve the rotation locks of known arrangements and to considerably increase the safety of the line protection system, especially in the case of lightning protection systems. Likewise, it ensures that the screwable connection parts of the component are reliably protected against unintentional loosening during operation.
  • component 8 The basic structure of component 8 is shown in FIG . It consists of a support body 2 and a screw-on part 16 designed as a union nut, both of which are arranged rotationally symmetrically along a central axis 6 of the component 8 and are mounted so as to be rotatable relative to one another.
  • the two bodies 2, 16 have the shape of an open hollow cylindrical body, which are captively coupled to one another with a retaining element 4 designed as a snap ring. They are made of metal and electrically connected via the snap ring 4.
  • the wall of the support body 2 basically has a stepped shape, the union nut 16 being supported on the outer jacket of the wall of the support body 2 with the larger outside diameter (non-stepped area of the support body 2).
  • the snap ring 4 lies vertically in a recessed groove which results from two congruent grooves in the axially closed areas of the two body walls (the support body 2 and the union nut 16).
  • the union nut 16 is also used to hold a screwable electrical or mechanical subcomponent 7, for example an end housing, branch or a plug connector.
  • the partial component 7 can be screwed to an internal thread 23 which is located on the inner surface of the wall of the union nut 16.
  • the internal thread 23 lies between the free end of the fixed union nut 16 and extends into the vicinity of the end face of the non-stepped area of the support body 2. This section-limited part of the wall of the (generally designated) screw-on part 16 is defined as the coupling area.
  • a rotatable bushing 1 the function of which is not described in more detail, is mounted on the outer jacket of the wall of the support body 2 with the smaller outside diameter (stepped region of the support body 2). It is also fixed in the manner described above by a snap ring 4 on the support body 2 in the aforementioned area.
  • the socket 1 consists of two zones, an axially closed zone 1.1 and an axially slotted zone 1.2, the slitting being formed by electrical contact springs.
  • a projection element 5 which is composed of an attached flange with a protective edge 15 horizontally attached at the flange edge.
  • Fig. 1 also shows a chafe protection 10, which lines the inner jacket of the wall of the support body 2 as a whole. It is designed as a plastic coating and protects (not shown) insulated electrical lines which are guided axially through the support body 2 up to (not shown) contact elements of the subcomponent 7 and are connected to the latter.
  • a chafe protection 10 which lines the inner jacket of the wall of the support body 2 as a whole. It is designed as a plastic coating and protects (not shown) insulated electrical lines which are guided axially through the support body 2 up to (not shown) contact elements of the subcomponent 7 and are connected to the latter.
  • the wall of the union nut 16 has a recess 11, which is circumferentially excluded. It extends outside the mentioned dome area on the lateral surface of the union nut 16. A certain part of the outer jacket of the wall of the support body 2 is provided in the area (below) the recess 11 with a non-slip surface, which is preferably formed as knurling 12 with axially parallel grooves. In the vicinity of the delimited area of the recess 11, a locking element 9 is fixed stationarily on the union nut 16, which is transverse to the central axis 6 of the component 8 and is attached to the union nut 16 as a pawl with a resilient tongue shape.
  • the pawl for which the use of a leaf spring is suitable, which is guided through said recess 11, engages with the preloaded freely movable and preloaded spring legs in the knurling 12 or presses there.
  • the union nut 16 and the support body 2 thus lock each other against rotation and are then locked against each other.
  • the movable part of the pawl can consist of two tongue-shaped spring legs which engage the knurling 12.
  • the knurling 12 is produced - in comparison to the toothing - without chip removal and has a very narrow division. This achieves cost-effective production and fine adjustment of the specified tightening torque of the screwed parts is achieved.
  • step lock in which a locking element 9 designed as a leaf spring and fixed in position by means of the said leaf spring with its freely movable part into a grippy surface with grooves (grooves) arranged in parallel in the form of the knurling 12 takes hold.
  • the working range of the rotational lock 13 obtained relates to the locking element 9 and the non-slip surface, which is designed as knurling 12 with axially parallel grooves and which has a narrow groove division and sufficient groove depth in order to reliably secure the rotating parts.
  • the unlocked parts can be unlocked, for example, with a pointed tool or with a screwdriver, which frees the pawl (leaf spring) from the catch by lifting it in the recess 11 mentioned in the union nut 16.
  • FIG. 1a shows the component 8 without showing the rotatably mounted bushing 1 on the support body 2. From this it can be seen that the rectangular (cover) surface of the leaf spring 9, which spans transverse to the central axis 6 of the component 8, a - According to Fig. 1b - handle element 14 designed as a handle is placed.
  • the handle 14 is intended to facilitate the lifting of the spring leg (s) of the leaf spring 9 from the knurling 12 of the support body 2, the freely movable part of the leaf spring 9 being designed, for example, with two spring legs.
  • a modified solution compared to FIG. 1 can be found in the solution according to FIG .
  • a flange 17a, 17b is molded onto the support body 2 and onto the union nut 16.
  • One flange 17a sits on the non-stepped region of the support body 2 - immediately before the beginning of the stepping.
  • the socket 1 is rotatably supported on the support body 2 in the manner previously described.
  • the other flange 17b is molded onto the free end of the union nut 16, which is located in the vicinity of the flange 17a of the support body 2 and lies outside the mentioned dome area. Both flanges 17a, 17b thus face each other, a leaf spring 9 being located between their end faces.
  • This spring is fixed to the flange 17a of the support body 2 and engages with its freely movable part in a radially arranged knurling 12.1, which is located on the end face of the flange 17b of the union nut 16.
  • the freely movable part of the leaf spring 9 is pressed axially into the knurling 12.1, whereby it locks the two rotatable bodies 2, 16.
  • This type of rotation lock 13 achieved is a lock in which the locking by means of leaf spring 9 in the knurling 12.1 also takes place statically.
  • the union nut 16 can be unlocked from the support body 2 by lifting the spring leg of the leaf spring 9 from the knurling 12.1 of the flange 17b of the union nut 16.
  • FIG. 2 conveys a somewhat different design of component 8.
  • This modified arrangement consists - in contrast to FIG. 1 - of a support body 2 and a screw-on part 16 as a union nut, to each of which a flange 17a, 17b is molded on the outside. Both flanges 17a, 17b face each other, the flange end face of the union nut 16 having a knurling 12.1.
  • the locking element 9 which is designed as a leaf spring and is fixed with a spring leg to the flange 17a of the support body 2 and engages with its preloaded freely movable spring leg in the knurling 12.1 of the end face of the flange 17b. Lifting the spring leg out of the knurling 12.1 unlocks the two rotatably mounted parts of this component 8 from one another.
  • Component 8 in FIG. 2a also has the molded flange attachments on the two rotatable parts.
  • this modified type is a dynamic rotation lock 13, the flanges 17a, 17b of which are designed without knurling.
  • the locking element 9 which is designed as a leg spring 9b.
  • This leg spring 9b represents a combined compression spring with two spring legs.
  • One leg of the leg spring 9b with a molded-on axially parallel nose 24 is captively fixed in a hole 25 which is located in the flange 17f of the union nut 16.
  • the other spring leg is fixed in one of the slots 19a radially machined on the flange 17e of the support body 2 with a notch 26 (not shown) which lies immediately below the slot 19a.
  • This spring presses axially against the flange 17e of the support body 2 and the flange 17f of the screw-on part 16 and thus holds the nose 24 in the hole 25.
  • Dynamic anti-rotation means that the leg spring 9b exerts a tightening predetermined counter torque during operation. It is particularly advantageous here that the drop in the preload force is kept as small as possible within the screwed parts during operation. In addition, the internal starting torque generated during relative movements is blocked or prevented. Thus the screwed parts are secured against loosening.
  • the screwing of the component 8 is canceled by lifting the handle 14 by hand from the catch 26 and the slot 19a, as a result of which the counter torque is released and the union nut 16 can be loosened.
  • Component 8 of FIG. 2a has a property similar to FIG. 2a because it likewise generates a dynamic counter torque.
  • a tension spring 9c between the two knurlless flanges 17c, 17d, which is located circumferentially around the support body 2.
  • This tension spring 9c which is a locking element 9, is attached to the flange 17c, 17d of the rotatable parts of the component 8 with a hook or an eyelet 18, 18a, the one side being captively fixed by an eyelet 18a on the flange 17d .
  • the tension spring 9c is guided between the flanges 17c and 17d and is in radial contact with the support body 2 due to the tensile force by fastening the hook 18 in the slot 19b with the catch 26 of the flange 17a.
  • FIG. 3 shows a further modified embodiment of the rotational lock 13 achieved with a locking element 9 designed as a spring-loaded ring.
  • a prestressed spring shaft ring 9a axially presses a movable ring 21 between the flanges 17a and 17b of the support body 2 and the union nut 16.
  • the axial space between the two flanges 17a, 17b is open to the outside.
  • the spring corrugated ring 9a presses against the axially movable ring 21, which abuts the flange 17a of the support body 2 on the end face.
  • the ring 21 has on its side facing the flange 17a of the support body 2 a radially arranged knurling 12.2, whereas the flange 17a also has a radial knurling 12.3 on the end face.
  • At least one claw 22 is attached to the circular end face of the flange 17b of the union nut 16. The claw 22 protrudes into the slot 19 of the ring 21 so that the ring 21 is taken along with the union nut 16 when rotating.
  • the Figure 4 gives a component 8, which was modified from the Fig.3. It consists of a support body 2 stepped by means of flange 17aa and a union nut 16, to which an inwardly drawn flange 17bb is additionally attached. Between the flange 17aa, which is provided with knurling 12.4 on the gradation of the support body 2, and the knurlless flange 17bb, there is a prestressed spring corrugated ring 9aa, which presses against a ring 21b, which abuts the gradation.
  • the locking element 9 is formed as a spring-loaded ring from the spring corrugated ring 9aa and the ring 21b.
  • the ring 21b has on its side facing the flange 17aa of the supporting body 2 a knurling 12.5 which is opposite to the knurling 12.4 of the flange 17aa. At least one claw 22a is molded onto it. At least one slot 19a is axially recessed into the flange 17bb of the screw-on part 16 designed as a union nut for receiving the claw 22a. Since the knurls 12.4, 12.5 of the ring 21b and the flange 17aa snap against each other, a connection of the screwed parts of the component 8 is secured against rotation.
  • the screwed parts are secured against rotation (by means of increased frictional forces) in that the knurling 12.4, 12.5 of ring 21b and flange 17aa generates an increased loosening torque (loosening torque) and does not allow the screwing part 16 to be released independently during operation.
  • component 8 shows a modification of component 8 according to FIG. 4, which consists of a stepped support body 2 and a screw-on part 16 as a union nut with an inwardly drawn flange 17b.
  • a radial finite spring corrugated ring 27 Between the gradation of the support body 2, the end face of which represents the flange 17a, and the flange 17b are a radial finite spring corrugated ring 27 and an exploded ring 21a.
  • the locking element 9 is formed as a spring-loaded ring from the spring corrugated ring 27 and the ring 21a.
  • the ring 21a has a knurling 12.7 parallel to the central axis 6 on the surface of the inner diameter. The latter is pressed radially by means of the spring corrugated ring 27 against a knurling 12.6 arranged on the support body 2, as a result of which a rotation lock is achieved by means of the knurls 12.6, 12.7.
  • a blasted preloaded ring 21a without a spring corrugated ring 27 also fulfills this task.
  • FIG. 6 shows a further possibility of locking screwed parts with a further modified component 8 by means of a rotation lock. It consists of a support body 2 with an attached flange 17g and a screw-on part 16, which is designed as a hexagon nut 16a.
  • the locking element 9 has the shape of an L-shaped leaf spring, which is fixed with a leg on the circumference of the hexagon nut 16a.
  • the hexagon nut 16a is in its screwed-in state on the screw-on part 2 near the flange 17g.
  • FIGS. 1, 1a, 1b, 2, 3, 4, 5, 6 represent a fine-tuning of the anti-rotation device 13 and according to FIGS. 2a, 2b a continuous fine-tuning of the anti-rotation device 13.

Landscapes

  • Bolts, Nuts, And Washers (AREA)
  • Clamps And Clips (AREA)
  • Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
EP96103519A 1995-03-23 1996-03-07 Eléments avec un système de sécurité antirotation Expired - Lifetime EP0739056B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19510521 1995-03-23
DE19510521A DE19510521C2 (de) 1995-03-23 1995-03-23 Komponente mit einer Drehsicherung

Publications (3)

Publication Number Publication Date
EP0739056A2 true EP0739056A2 (fr) 1996-10-23
EP0739056A3 EP0739056A3 (fr) 1997-11-19
EP0739056B1 EP0739056B1 (fr) 2006-01-11

Family

ID=7757441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96103519A Expired - Lifetime EP0739056B1 (fr) 1995-03-23 1996-03-07 Eléments avec un système de sécurité antirotation

Country Status (3)

Country Link
US (1) US5674087A (fr)
EP (1) EP0739056B1 (fr)
DE (2) DE19510521C2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6143147A (en) * 1998-10-30 2000-11-07 Tokyo Electron Limited Wafer holding assembly and wafer processing apparatus having said assembly
US6652656B2 (en) 2001-07-24 2003-11-25 Tokyo Electron Limited Semiconductor wafer holding assembly
CN105387057A (zh) * 2015-12-29 2016-03-09 陈静 板簧(磁性)防松动防盗安全螺丝钉、螺丝帽

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6454576B1 (en) 2000-08-22 2002-09-24 Bicc General Cable Industries, Inc. Locking electrical receptacle
DE102006040618A1 (de) * 2006-08-30 2008-03-06 Huf Hülsbeck & Fürst Gmbh & Co. Kg Aufnahmemittel
DE102007062857A1 (de) * 2007-12-21 2009-06-25 Krauss-Maffei Wegmann Gmbh & Co. Kg Blitzschutzeinrichtung an einem Fahrzeugaufbau, insbesondere einer Fahrzeugantenne
US7905741B1 (en) 2009-11-06 2011-03-15 Amphenol Corporation Anti-vibration connector coupling with an axially movable ratchet ring
US7914311B1 (en) 2009-11-06 2011-03-29 Amphenol Corporation Anti-vibration connector coupling with an axially movable ratchet ring and a collar
CN102892638B (zh) * 2010-06-08 2014-12-31 铃木株式会社 车辆用边框安装结构
US8579644B2 (en) 2012-03-13 2013-11-12 Amphenol Corporation Anti-vibration connector coupling with disengagement feature
USD730841S1 (en) 2014-02-06 2015-06-02 Multiway Industries (Hk) Ltd. Lockable electrical connector
CN114019200B (zh) * 2022-01-06 2022-03-22 广东电网有限责任公司中山供电局 一种10kV小车开关回路电阻试验自适应连接触头装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025723A1 (fr) * 1979-08-31 1981-03-25 The Bendix Corporation Assemblage de connecteur électrique à dispositif anti-découplant
US4291933A (en) * 1980-02-11 1981-09-29 Akzona Incorporated Electrical connector having improved non-decoupling mechanism
US4487470A (en) * 1983-05-11 1984-12-11 The Bendix Corporation Anti-decoupling mechanism for an electrical connector assembly
US4834667A (en) * 1986-02-24 1989-05-30 Engineered Transitions Co., Inc. Vibration resistant electrical coupling
EP0381582A1 (fr) * 1989-02-03 1990-08-08 Pierre Drogo Connecteur électrique
DE4041629A1 (de) * 1990-11-08 1992-05-14 Airbus Gmbh Schraubverbindung mit ueberwurfmutter
US5215336A (en) * 1991-06-28 1993-06-01 Shur-Lok Corporation Coupling joint assembly with integral retention mechanism

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Publication number Priority date Publication date Assignee Title
US3917373A (en) * 1974-06-05 1975-11-04 Bunker Ramo Coupling ring assembly
DE2719730A1 (de) * 1977-05-03 1978-11-09 Akzona Inc Verbindungsstueck fuer elektrische leitungen
US4509814A (en) * 1982-09-30 1985-04-09 Matrix Science Corporation Electrical connector shell assembly with continuous annular seal
US4820184A (en) * 1987-10-05 1989-04-11 Interconnection Products Incorporated Electrical connector retaining ratchet

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0025723A1 (fr) * 1979-08-31 1981-03-25 The Bendix Corporation Assemblage de connecteur électrique à dispositif anti-découplant
US4291933A (en) * 1980-02-11 1981-09-29 Akzona Incorporated Electrical connector having improved non-decoupling mechanism
US4487470A (en) * 1983-05-11 1984-12-11 The Bendix Corporation Anti-decoupling mechanism for an electrical connector assembly
US4834667A (en) * 1986-02-24 1989-05-30 Engineered Transitions Co., Inc. Vibration resistant electrical coupling
EP0381582A1 (fr) * 1989-02-03 1990-08-08 Pierre Drogo Connecteur électrique
DE4041629A1 (de) * 1990-11-08 1992-05-14 Airbus Gmbh Schraubverbindung mit ueberwurfmutter
US5215336A (en) * 1991-06-28 1993-06-01 Shur-Lok Corporation Coupling joint assembly with integral retention mechanism

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6143147A (en) * 1998-10-30 2000-11-07 Tokyo Electron Limited Wafer holding assembly and wafer processing apparatus having said assembly
US6652656B2 (en) 2001-07-24 2003-11-25 Tokyo Electron Limited Semiconductor wafer holding assembly
US6767846B2 (en) 2001-07-24 2004-07-27 Tokyo Electron Limited Method of securing a substrate in a semiconductor processing machine
CN105387057A (zh) * 2015-12-29 2016-03-09 陈静 板簧(磁性)防松动防盗安全螺丝钉、螺丝帽

Also Published As

Publication number Publication date
DE19510521C2 (de) 1998-07-02
EP0739056A3 (fr) 1997-11-19
DE59611323D1 (de) 2006-04-06
EP0739056B1 (fr) 2006-01-11
US5674087A (en) 1997-10-07
DE19510521A1 (de) 1996-10-02

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