KR101042793B1 - Coaxial cable connector installable with common tools - Google Patents

Coaxial cable connector installable with common tools Download PDF

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Publication number
KR101042793B1
KR101042793B1 KR1020040046468A KR20040046468A KR101042793B1 KR 101042793 B1 KR101042793 B1 KR 101042793B1 KR 1020040046468 A KR1020040046468 A KR 1020040046468A KR 20040046468 A KR20040046468 A KR 20040046468A KR 101042793 B1 KR101042793 B1 KR 101042793B1
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KR
South Korea
Prior art keywords
connector
coupling sleeve
inner
rear clamp
interlock surface
Prior art date
Application number
KR1020040046468A
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Korean (ko)
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KR20050011678A (en
Inventor
존 딕스트라
레리 뷰엔즈
제임스 울로스
Original Assignee
앤드류 엘엘씨
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.)
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Publication date
Priority to US10/604,470 priority Critical patent/US6994587B2/en
Priority to US10/604,470 priority
Priority to US10/708,859 priority patent/US6951481B2/en
Priority to US10/708,859 priority
Application filed by 앤드류 엘엘씨 filed Critical 앤드류 엘엘씨
Publication of KR20050011678A publication Critical patent/KR20050011678A/en
Application granted granted Critical
Publication of KR101042793B1 publication Critical patent/KR101042793B1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R24/00Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure
    • H01R24/38Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts
    • H01R24/40Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency
    • H01R24/56Two-part coupling devices, or either of their cooperating parts, characterised by their overall structure having concentrically or coaxially arranged contacts specially adapted for high frequency specially adapted to a specific shape of cables, e.g. corrugated cables, twisted pair cables, cables with two screens or hollow cables
    • H01R24/564Corrugated cables
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0521Connection to outer conductor by action of a nut
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/03Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections
    • H01R9/05Connectors arranged to contact a plurality of the conductors of a multiconductor cable, e.g. tapping connections for coaxial cables
    • H01R9/0527Connection to outer conductor by action of a resilient member, e.g. spring
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2103/00Two poles

Abstract

The present invention provides a coaxial connector with multiple interleaved concentric threads that reduces connector assembly screwing requirements. The connector includes cable sheath stripping features to eliminate the need for a separate sheath stripping tool. In addition, the coupling nut and / or rear clamp nut may include overtightening protection assemblies. The overtightening protection assemblies use first and second interlock surfaces, which interlock surface is rotatable to enable a predetermined level of torque to rotate the complementary protrusions formed on the rings to deflect and slip past each other. Working in conjunction with the inner coupling sleeve, it protects the connector and / or cable from damage due to the application of excessive torque and eliminates the need for a torque wrench during connector installation. The first and second interlock surfaces may be formed directly on the coupling nut or may be separate finger rings and ramp rings that are mutually coupled.
Rear clamp nut, sheath, overtightening protection assembly, inner coupling sleeve, cutting edge, finger ring, lamp ring

Description

Coaxial cable connector installable with common tools             

1 is a side cutaway side view of a coaxial connector and a coaxial cable for receiving the connector according to an embodiment of the present invention;

2 is an outer side view of the rear clamp nut in accordance with an embodiment of the present invention.

3 is a side cross-sectional view taken on line A-A in FIG.

4 is an end sectional view taken on line B-B in FIG. 2;

5 is an external side view of a rear clamp nut in accordance with another embodiment of the present invention.

6 is a partially cutaway side view of a coaxial connector according to another embodiment of the present invention.

7 is an end cross-sectional view taken on line A-A in FIG. 6;

8 is an end view of FIG. 6;

9 is an end view of the finger ring according to the embodiment of the invention shown in FIGS.

10 is a side view of the finger ring shown in FIG. 9.

11 is an end view of the lamp ring according to the embodiment of the invention shown in FIGS.

12 is a side view of the lamp ring shown in FIG.                 

Fig. 13 is a partial side cross-sectional view of a connector according to a second embodiment of the present invention.

14 is an end view taken along line A-A in FIG. 13;

15 is an end view of a coupling nut according to a second embodiment of the present invention.

16 is a cross-sectional view of the coupling nut of FIG. 15.

17 is an end view of an inner coupling sleeve according to a second embodiment of the present invention.

FIG. 18 is a sectional view taken on line B-B in FIG. 17; FIG.

19 shows a connector end of a coupling nut assembly according to a third embodiment of the invention.

20 is a partial cross-sectional view taken on the line A-A of FIG. 19;

21 is an isometric view of a coupling nut according to a third embodiment of the present invention.

22 is a side cross-sectional view of the coupling nut of FIG. 21.

23 is an outer side view of the inner coupling sleeve according to the third embodiment of the present invention.

FIG. 24 is a side cross-sectional view of the inner coupling sleeve of FIG. 23. FIG.

25 is an end view of a finger ring according to a third embodiment of the present invention.

FIG. 26 is a sectional view taken on line A-A in FIG. 25;

[Description of Drawings]

1: connector 5: coaxial cable

10 rear clamp nut 15 outer conductor

20: sheath 24: over-tightening protection assembly

25: thread 26: first inner coupling sleeve                 

27: inner conductor 28: cable end

29 connector end 30 internal contact

31: Round coil spring 32: Rear clamp nut bore

33: thrust collar 35: insulator

40: slot 45: cutting edge

47: step portion 50: connector body

52: groove 54: coupling nut

55: flat part 56: connector thread

59: Inner Diameter 60: Second Inner Coupling Sleeve

61: inner coupling sleeve flange 62: interface flange

63: interface 65: finger ring

70: lamp ring 75: first ring tab

76: finger ring slot 77: second ring tab

78: inner coupling sleeve slot 80: finger

85: Lamp 87: Lip Edge

89: coupling sleeve holding groove 90: first ring slot

91: pin 93: tine

The present invention relates generally to coaxial cable connectors. In particular, the present invention relates to coaxial cable connectors with easy installation features that can be installed with reduced connector specific processing requirements.

Coaxial cable connectors are used, for example, in communication systems requiring a high degree of reliability and precision. Insufficiently installed connectors can damage equipment, significantly degrade system performance, or cause premature system failure. Thus, conventional connectors typically include a wide range of installation instructions that require high cost special tools specific to each connector.

One special tool for the connectors is a jacket stripper. The jacket stripper is used to accurately peel off the outer sheath to expose a particular length of the outer conductor in electrical contact with the required surfaces of the connector. If the amount of removal of the outer sheath is short, long or uneven, the electrical connection and / or environmental seal of the connector to the cable may be degraded.

The connectors can be used in a limited space, for example between banks of cables with a minimum gap therebetween. The limited space increases the difficulty of proper connector installation and / or interconnection by increasing the time required to make repetitive small turns allowed by the limited space when screwing the connectors by hand and / or with the aid of a wrench. In addition, the connectors may be installed in an exposed location, such as the top of a radio tower, where installation personnel may be less inclined to properly perform time-consuming installation work.

Threaded connections on and between the connectors are usually tightened using a wrench that is likely to generate large moment arm forces that can damage the connector and / or associated cable (s). Thus, the use of a torque wrench with a specific torque setting for each connector is often specified by pre-connector installation instructions. Applying an appropriate torque of, for example, 15 to 20 lb-inches (8.2 to 10.9 Nm) to the threaded connection ensures an accurate electrical connection and allows for the relatively soft metal part of the thread, seal and / or cable Prevents the application of excessive force that can deform or damage. Torque wrenches are expensive and easily damaged tools that installation personnel cannot always have close proximity and can be cumbersome to use correctly.

Competitiveness in the coaxial cable connector market is focused on minimizing overall costs, including training requirements for installation personnel, reducing dedicated installation tools and reducing the total number of installation steps and / or work required.

It is therefore an object of the present invention to provide a connector which overcomes the drawbacks of the prior art.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention, and describe the main principles of the present invention together with the general description of the invention described above and the following detailed description of the embodiments. do.

As shown in FIG. 1, the connector 1 for use with the coaxial cable 5 has a rear clamp nut 10 adapted to fit over the end of the cable 5. The sheath 20 of the cable 5 is removed from the end of the cable 5 to expose the outer conductor 15. The threads 25 are provided with a connector body 50, a circular coil spring 31, a thrust collar 33, and over-tightening, described below, to secure the connector 1 to the cable 5. It acts to clamp the outer conductor 15 between the first inner coupling sleeve 26, which is coupled to the rear clamp nut 10 via a protective assembly 24. If the overtightening protection assembly 24 feature is not used, the threads 25 may be formed on the clamp nut 10 and the first inner coupling sleeve 26 may be omitted. In addition, the circular coil spring 31 may be omitted, and the outer conductor 15 may be clamped directly between the connector body 50 and the first inner coupling sleeve or rear clamp nut 10. . The inner conductor 27 of the coaxial cable 5 is coupled with the inner contact 30 of the connector 1, which is spaced from the outer conductor 15 which is engaged with the surfaces by an insulator 35.

The cable stripping feature of the connector 1 is shown in FIGS. 2 to 4 simply showing the rear clamp nut 10. The rear clamp nut 10 has a rear clamp nut bore 32 which is formed at the cable end 28 of the connector 1 which is adapted to receive the coaxial cable 5 together with the sheath 20. 1 has an internal diameter D1. The second inner diameter D2 at the connector end 29 which is smaller than the first inner diameter of the rear clamp nut bore 32 is adapted to receive only the outer conductor 15 of the cable 1.

The slot 40 formed in the rear clamp nut 10 has a cutting edge 45 at the end of the helical step 47 between the first inner diameter D1 and the second inner diameter D2. When the rear clamp nut 10 is placed over the end of the cable 5, the sheath 20 comes into contact with the helical step and the cutting edge 45. Rotating the rear clamp nut 10 around the cable 5 causes the sheath 20 to contact the cutting edge 45, which cuts and separates the sheath 20 from the outer conductor 15. The cutout of the sheath 20 exits through the slot 40 as the rear clamp nut 10 advances over the cable 5. The sheath 20 is trimmed to the correct length, for example when the outer conductor 15 reaches the connecting end of the rear clamp nut 10.

The rear clamp nut 10 may be attached to the connector body 50 through the threads 25 shown in detail in FIG. 5. The threads 25 comprise four interleaved concentric threads spaced at equal intervals along the length of the connector. Each of the four threads has the same lead with screw ends spaced 90 degrees from each other about the axis of the connector 1. The interleaved threads 25 have a pitch that is four times normal, resulting in only one quarter of the number of turns in the screw assembly of the connector 1 compared to a common single thread. . Since the threads 25 are interleaved, they maintain the same thread-to-thread contact area as a whole, with the result that the threads 25 have a pitch that is increased by a factor of four and a strength comparable to a common single screw connection. In alternative embodiments, the use of two or three interleaved concentric threads will reduce the number of turns required to attach the rear clamp nut 10 to the connector body 50 by one half or one third. The outer surface of the rear clamp nut 10 and the flat portion 55 formed in the connector body 50 provide tool surfaces for tightening the rear clamp nut 10 with respect to the connector body 50.

One or more overtightening protection assembly (s) 24 of the connector 1 may be coupled to the coupling nut 54, connector body 50 due to excessive tightening of the coupling nut 54 and / or the rear clamp nut 10. To prevent damage to the relatively soft metal part (s) of the rear clamp nut 10 (if present), threads, seals and / or cable (s). A separate overtightening protection assembly 24 may be applied to operate on the threads 25 and the connector threads 56, each having a separate predetermined torque rating.

The overtightening protection assembly 24 is first described with the aid of a simple connector 1 as shown in FIGS. 6 to 8, with the overtightening protection assembly 24 in the coupling nut 54. The coupling nut 54 has an opening dimensioned to allow the second inner coupling sleeve 60. The second inner coupling sleeve 60 has connector threads 56 disposed on the inner diameter 59 to engage with other connectors and / or equipment. Where the mating thread surface is simply shown, the connector threads 56 may be multiple interleaved concentric threads as described above. The second inner coupling sleeve 60 overlaps with the corresponding outwardly projecting interface flange 62 of the interface 63, ie inwardly pressed into the cable end 28 of the connector body 50, for example. The protruding coupling sleeve flange 61 can be held in a rotatable structure on the connector body 50.

Those skilled in the art will appreciate that the overtightening protection assembly 24 may likewise be incorporated into the rear clamp nut 10 as shown in FIG. 1.

The overtightening protection assembly 24 is embodied with respect to the rear clamp nut 10, but the following description of the second inner coupling sleeve applies equally to the first inner coupling sleeve 26 and the like.

Rotation of the coupling nut 54 is within the torque range selected by the first interlock surface coupled to the coupling nut 54 and the corresponding second interlock surface coupled to the second coupling sleeve 60. Is coupled to a second inner coupling sleeve 60, wherein the first interlock surface and the second interlock surface have complementary protrusions. Here, the first and second interlock surfaces are formed of a finger ring 65 as shown, for example, in FIGS. 9 and 10 and also shown, for example, in FIGS. 11 and 12. As formed by the lamp ring 70. The finger ring 65 and the ramp ring 70 are coaxially arranged in a step or groove 52 formed in the coupling nut 54.

The finger ring 65 is connected to the coupling nut by a plurality of first ring tabs 75 distributed around the inner diameter of the groove 52 interlocking with the corresponding finger ring slot 76 in the finger ring 65. 54 may be coupled to the key. Likewise, the ramp ring 70 is configured with a plurality of inwardly projecting second ring tabs 77 which engage, for example, the inner coupling sleeve slot (s) 78 formed at the cable end of the second inner coupling sleeve 60. The key can be coupled to the second inner coupling sleeve 60 by way of example. Finger (s) 80 protruding inwardly from finger ring 65 engage with ramp (s) 85 extending outward from ramp ring 70.

Rotation of the coupling nut 54 causes the finger (s) 80 of the finger ring 65 and / or the lamp (s) 85 of the lamp ring 70 to screw in the connector threads 56. Instantaneously deflected / deformed and transferred to the second inner coupling sleeve 60 until it reaches a predetermined torque value at which slippage occurs past the ramp ring 70, whereby an out-of-range level of torque is transmitted to the second inner coupling sleeve. To 60 and thus to the relatively soft metal parts of the connector thread 56, gasket and / or cable (s). During reverse rotation, the finger (s) 80 has the ramp (s) 85 with increased angle to ensure that increased torque levels sufficient to enable unscrewing of the connector 1 can be applied. Hit the stairs side.

The torque value at which the finger ring 65 slips past the ramp ring 70 selects materials with desired bending / deformation characteristics, for example, and the finger (s) 80 and / or lamp (s) 85 Can be adjusted by adjusting the angles of the mating surfaces and / or by modifying the thickness of the selected material (s). The finger ring 65 and / or lamp ring 70 includes, for example, machining of metal stock, metal stamping, bending and ring rolling or injection molding from materials such as plastic, nylon, polycarbonate, ABS, etc. Can be formed using a wide range of techniques. The positions of the finger ring and ramp ring pairs can be switched, and / or either or both of the first and second rings are at least one complementary pair transient when the applied rotational torque reaches the required threshold level. Or other permanently complementary protrusions and / or interlocking structures that are deflected / deformed to release the interlock of the connector body 50 with respect to the second inner coupling sleeve 80. For example, interlocked protrusions, bumps, arches and / or leaf springs can be used with the equivalent effect according to the invention.

The overall size of the resulting assembly, the total number of manufacturing operations and components may be determined by the second inner coupling sleeve 60 or coupling nut 54, the finger ring 65 interlocking the protrusion (s) function and And / or by integrating with ramp ring 70. As shown in the second embodiment using the metal finger ring 65 shown by FIGS. 13-18 in which like components are similarly represented, the lamp (s) 85 has a second inner coupling sleeve 60. Is integrated with. The coupling nut 54 shown in FIGS. 15 and 16 rotates with the finger ring slot (s) 76 of the finger ring 65 shown in FIGS. 9 and 10 that are dimensioned to press fit into the grooves 52. Again, a plurality of first ring tab (s) 75 are used to possibly interlock.

In a second embodiment, the second inner coupling sleeve 60 shown in FIGS. 17 and 18 is a lip edge 87 formed around the connector end 29 of the second inner coupling sleeve 60. ) Is held in the coupling nut 54. As the second inner coupling sleeve 60 is inserted into the coupling nut 54, the lip edge 87 snaps into the corresponding coupling sleeve retaining groove 89 and remains rotatably there.

As shown in Figs. 19 to 26, the third embodiment shows an adaptation to the finger ring 65 formed of, for example, a plastic material. The finger ring 65 is formed with a plurality of first ring slots formed around the cable end 28 of the coupling nut 54 which receives the corresponding outwardly projecting pin (s) 91 of the finger ring 65. Through the (s) 90, a simple mounting portion is provided in the groove (52). In order to be able to obtain a lower strength from the plastic material, the number of finger (s) 90 and corresponding lamp (s) 85 can be increased. The lip edge 87 may be formed using a plurality of individual tines formed at the connector end of the second inner coupling sleeve 60.

The connector 1 can be adapted to the dimensions and shape of a particular coaxial cable 5, for example a coaxial cable having annular or helical pleats in the inner and / or outer conductors 27, 15. In addition, the connector end of the connector 1 can be adapted according to male and / or female embodiments in the form of a dedicated interface or any standard connector, for example Type-F, BNC, Type-N or DIN. have.

The present invention provides a coaxial connector with ease of installation features and reduces special installation tool requirements. Sheath stripping The cutting edge slot eliminates the need for a dedicated sheath stripping tool and strips the sheath for accurate external conductor exposure during connector assembly without the need for a separate stripping step. Interleaved threads allow the connector to be installed with significantly reduced screwing requirements. In addition, the connector may include protection from damage due to excessive torque application during the connector installation and elimination of the need for a torque wrench.

Those skilled in the art will appreciate that the torque limiting coupling nut assemblies described herein can be used for other non-connector applications where torque limiting is desired. By removing the inner coupling sleeve flange 61, a torque limiting coupling nut assembly can be used as an alternative to any conventional screw nut, providing the benefit of torque limiting for any threaded interconnect. For example, where nuts and bolts are used to fix glass panels and mirrors, torque limiting nuts according to the invention are used to limit the compression applied when the nuts are tightened on the bolts and tightened on the glass panels. Can be.

Although the above references refer to components having materials, proportions, integers, or known equivalents, such equivalents are included herein as described, respectively.

Although the present invention has been disclosed by the description of its embodiments and these embodiments have been described in considerable detail, it is not the intention of the applicant to limit or in any way limit the scope of the appended claims. Additional advantages and modifications will be readily apparent to those skilled in the art. Thus, the invention in its broader aspects is not limited to the specific details shown and disclosed, each apparatus, method and exemplary embodiments. Accordingly, departures may be made from such details without departing from the spirit or scope of the applicant's overall inventive idea. It is also to be understood that improvements and / or modifications may be made without departing from the scope or spirit of the invention as defined by the claims.

Claims (30)

  1. A coaxial connector for use with a coaxial cable having an inner conductor, an outer conductor and a sheath,
    A rear clamp nut having a first inner diameter dimensioned to receive the cable with the sheath at the cable end and a bore having a second inner diameter smaller than the first inner diameter dimensioned to receive the cable without the sheath at the connector end; ,
    A cutting edge of a slot formed in the rear clamp nut is formed at an end, and a helical step between the first inner diameter and the second inner diameter extending around the bore between the cable end and the connector end, and
    A connector body connected at said connector end to said rear clamp nut,
    And the cutting edge at the second inner diameter operates to cut and disconnect the sheath from the outer conductor when a cable is inserted into the bore and one of the connector and the cable rotates.
  2. The coaxial connector of claim 1, wherein the connector body and the rear clamp nut are connected through threads.
  3. 3. The coaxial connector of claim 2 wherein said threads are a plurality of interleaved concentric threads.
  4. 4. The coaxial connector of claim 3 wherein the threads are one of two, three, and four interleaved concentric threads.
  5. 2. The coaxial connector of claim 1 further comprising an overtightening protection assembly between the rear clamp nut and the inner coupling sleeve, wherein the connector body is connected to the rear clamp nut at the connector end via threads on a coupling sleeve. .
  6. 6. The overtightening protection assembly of claim 5, wherein the overtightening protection assembly has a first interlock surface and a second interlock surface,
    Each of the first and second interlock surfaces has a plurality of complementary protrusions,
    The first interlock surface is coupled to the connector body and the second interlock surface is coupled to the inner coupling sleeve,
    Complementary protrusions of the first interlock surface and the second interlock surface interact to engage the inner coupling sleeve during rotation of the connector body by application of a torque below a threshold level,
    At least one of the complementary protrusions is biased upon application of a threshold level or more torque to disengage the connector body from the inner coupling sleeve.
  7. 7. The method of claim 6 wherein the first interlock surface is a finger ring coupled to the connector body through an inwardly projecting first ring tab in a groove of the rear clamp nut, wherein the inwardly projecting first ring tab is a finger ring. A coaxial connector that is keyed with a corresponding first finger ring slot within.
  8. 7. The coaxial of claim 6 wherein the second interlock surface is a ramp ring coupled to the inner collar through an inwardly projecting second ring tab that is keyed with a corresponding inner coupling sleeve slot of the inner coupling sleeve. connector.
  9. 7. The coaxial connector of claim 6 wherein the plurality of complementary protrusions on the first interlock surface are a plurality of fingers that project inwardly.
  10. 7. The coaxial connector of claim 6 wherein the plurality of complementary protrusions on the second interlock surface are a plurality of lamps that project outwardly.
  11. 7. The coaxial connector of claim 6, wherein the plurality of complementary protrusions on the second interlock surface are formed on an outer surface of the inner coupling sleeve.
  12. Coaxial connector for coupling coaxial cable to the connection,
    A connector body and an interface coupled to the connector body,
    An inner coupling sleeve with threads for coupling the interface to the connection and a coupling nut coaxial with the interface, and
    An inner first interlock surface coupled with the coupling nut and an outer second interlock surface coupled to the inner coupling sleeve,
    Each of the first interlock surface and the second interlock surface has a plurality of complementary protrusions,
    Complementary protrusions of the first interlock surface and the second interlock surface interact to engage the inner coupling sleeve during rotation of the coupling nut by application of a torque below a threshold level,
    At least one of the complementary protrusions is biased upon application of a threshold level or more torque to disengage the connector body from the inner coupling sleeve.
  13. 13. The coaxial connector of claim 12, wherein the first interlock surface is a finger ring coupled to a coupling nut, and the complementary protrusions of the first interlock surface are a plurality of fingers extending inwardly from the finger ring.
  14. 13. The coaxial connector of claim 12 wherein the second interlock surface is a ramp ring coupled to an inner coupling sleeve, and the complementary protrusions of the second interlock surface are a plurality of lamps projecting outwardly from the lamp ring.
  15. 13. The coaxial connector of claim 12 wherein the second interlock surface is a plurality of lamps formed on an outer surface of the inner coupling sleeve.
  16. 13. The second inner diameter of claim 12, wherein the cable end has a first inner diameter of a dimension adapted to fit on a cable with a sheath and the connector end has a second inner diameter smaller than the first inner diameter of a dimension intended to fit on a cable without a sheath. A rear clamp nut (10) having a bore having:
    The cutting edge 45 of the slot 40 formed in the rear clamp nut 10 is formed at the end, the first inner diameter and the second inner diameter extending around the bore between the cable end and the connector end. It further comprises a spiral step 47 therebetween,
    The cutting edge at the second inner diameter operates to cut and separate the sheath from an outer conductor when a cable is inserted into the bore and rotates,
    And the connector body is adapted to be connected to the rear clamp nut at the connector end.
  17. 17. The coaxial connector of claim 16, wherein the connector body and the rear clamp nut are connected through a plurality of interleaved concentric threads.
  18. 18. The coaxial connector of claim 17 wherein the threads are one of two, three, and four interleaved concentric threads.
  19. The coaxial connector of claim 1 wherein the connector body and the rear clamp nut are connected by a plurality of interleaved concentric threads.
  20. 20. The coaxial connector of claim 19 wherein the threads are one of two, three, and four interleaved concentric threads.
  21. 20. The first inner diameter of claim 19 wherein the rear clamp nut has a first inner diameter of a dimension intended to be fitted on a cable with a sheath at a cable end and a first inner diameter of dimension that is fitted on a cable without a sheath at the connector end. Having a bore having a smaller second inner diameter,
    The helical step between the first inner diameter and the second inner diameter forms a cutting edge of a slot formed in the rear clamp nut at an end, extends around the bore between the cable end and the connector end, and the second And the cutting edge at the inner diameter operates to cut and separate the sheath from the outer conductor as a cable is inserted into the bore and rotates.
  22. 20. The coaxial connector of claim 19, wherein the connector body is connected to the rear clamp nut through an inner coupling sleeve, and the inner coupling sleeve is linked to the rear clamp nut through an overtight protection assembly.
  23. 23. The method of claim 22 wherein the overtightening protection assembly has an inner first interlock surface coupled to the rear clamp nut and an outer second interlock surface coupled to the inner coupling sleeve,
    Each of the first and second interlock surfaces has a plurality of complementary protrusions,
    Complementary protrusions of the first interlock surface and the second interlock surface interact such that the rear clamp nut is coupled to the inner coupling sleeve during rotation of the rear clamp nut by application of a torque below a threshold level,
    At least one of the complementary protrusions is biased upon application of a threshold level or more torque to disengage the rear clamp nut from the inner coupling sleeve.
  24. 24. The coaxial connector of claim 23 wherein the first interlock surface is a finger ring having a plurality of inwardly projecting fingers and the second interlock surface is a ramp ring having a plurality of outwardly projecting ramps.
  25. 24. The coaxial connector of claim 23 wherein the second interlock surface is a plurality of lamps formed around an outer surface of the inner coupling sleeve.
  26. A coupling nut having a groove at the end of the cable,
    A cylindrical inner coupling sleeve adapted to seat within said coupling nut and having an inward connector around its inner diameter,
    A first interlock surface coupled to the groove and a second interlock surface coupled to the inner coupling sleeve,
    Each of the first and second interlock surfaces has a plurality of complementary protrusions,
    Complementary protrusions of the first interlock surface and the second interlock surface interact such that the rear clamp nut is coupled to the inner coupling sleeve during rotation of the rear clamp nut by application of a torque below a threshold level,
    At least one of the complementary protrusions is biased upon application of a threshold level or more torque to disengage the rear clamp nut from the inner coupling sleeve.
  27. 27. The inner coupling sleeve of claim 26, wherein the coupling nut has an inward coupling nut retaining groove, the outwardly protruding lip edge of the inner coupling sleeve is received in the groove such that the inner coupling sleeve is rotatable in the coupling nut. Torque retaining coupling nut assembly.
  28. 28. The torque limiting coupling nut assembly of claim 27 wherein the lip edge is formed of a plurality of tines, the formed lip edge protruding outwardly from the tines.
  29. 27. The torque limiting coupling nut assembly of claim 26 wherein the second interlock surface is formed as a plurality of lamps in an outer diameter of the inner coupling sleeve.
  30. 27. The torque limiting coupling nut assembly of claim 26 further comprising an inner coupling sleeve flange extending inwardly at a connector end with a diameter less than the inner diameter.
KR1020040046468A 2003-07-23 2004-06-22 Coaxial cable connector installable with common tools KR101042793B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/604,470 US6994587B2 (en) 2003-07-23 2003-07-23 Coaxial cable connector installable with common tools
US10/604,470 2003-07-23
US10/708,859 US6951481B2 (en) 2003-07-23 2004-03-29 Coaxial cable connector installable with common tools
US10/708,859 2004-03-29

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Publication Number Publication Date
KR20050011678A KR20050011678A (en) 2005-01-29
KR101042793B1 true KR101042793B1 (en) 2011-06-21

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CN100433459C (en) 2008-11-12
BRPI0402732A (en) 2005-04-05
EP1501159A1 (en) 2005-01-26
KR20050011678A (en) 2005-01-29
CN1577983A (en) 2005-02-09

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