EP4372928A1 - Push-pull connector - Google Patents
Push-pull connector Download PDFInfo
- Publication number
- EP4372928A1 EP4372928A1 EP22208419.6A EP22208419A EP4372928A1 EP 4372928 A1 EP4372928 A1 EP 4372928A1 EP 22208419 A EP22208419 A EP 22208419A EP 4372928 A1 EP4372928 A1 EP 4372928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- push
- support ring
- elastic support
- latch
- connector
- 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.)
- Withdrawn
Links
- 230000008878 coupling Effects 0.000 claims abstract description 16
- 238000010168 coupling process Methods 0.000 claims abstract description 16
- 238000005859 coupling reaction Methods 0.000 claims abstract description 16
- 230000000295 complement effect Effects 0.000 claims description 24
- 230000004323 axial length Effects 0.000 claims description 8
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 210000005224 forefinger Anatomy 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
Images
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
- H01R13/627—Snap or like fastening
Definitions
- the present invention relates to a push-pull connector.
- FIG. 1a A known type of push-pull connector for electrical contacts, is illustrated in figures 1a and 1b .
- This known push-pull connector 1' is for pluggably and releasably connecting to a complementary connector 20.
- the push-pull connector 1' comprises interconnection elements in the form of electrical contacts.
- the interconnection elements are secured in a body which in the case of electrical contacts is an insulating body or housing around which is provided an outer casing 4' and a push-pull coupling mechanism.
- the push-pull coupling mechanism comprises a grip sleeve 6' slidably mounted on the outer casing and movable in the plugging direction (also referred to herein as the axial direction).
- the push-pull coupling mechanism further comprises a latching member 7' that has a latch protrusion 8' mounted on an elastic cantilever beam 19'.
- the latch protrusions 8' are biased elastically inwardly until they pass latching members in the complementary connector 20 and then spring outwardly such that a latching shoulder 10' of the latching protrusion 8' engages a complementary latching shoulder 26 in the complementary connector 20.
- a user pulls the grip sleeve 6' rearwardly away from the complementary connector 20 whereby a front end latch engagement portion 16' of the grip sleeve engages a front facing chamfer 11' of the latch protrusion 8' thereby inwardly biasing the latch protrusion such that it disengages the complementary latching shoulder in the complementary connector 20 to uncouple the connectors.
- a user may thus couple the connectors by simply pushing the push-pull connector 1' into engagement with the complementary connector 20, and to release the coupling by simply pulling back on the grip sleeve 6'.
- a drawback is that the latching member 7' as illustrated in figure 1c needs to have a certain length in order to have elastically flexible cantilever beams allowing sufficient displacement of the latching protrusions attached to a sufficiently stable and rigid support.
- the latching member 7' imparts a certain complexity in the machining and assembly of the connector, whereas there is a continuous desire to reduce the manufacturing cost of connectors as well as increase the compacity for certain applications.
- a push-pull connector comprising a housing, interconnection elements mounted within the housing, an outer casing, and a push-pull coupling mechanism comprising a grip sleeve and an elastic latching member, the elastic latching member comprising a plurality of latch protrusions on an elastic support, the grip sleeve slidably mounted on the outer casing and configured to bias the plurality of latch protrusions into a disengaged position when the grip sleeve is pulled in an uncoupling direction, the grip sleeve comprising latch receiving orifices receiving therethrough the corresponding latch protrusions.
- the elastic support is in the form of an elastic support ring configured to bias elastically radially the plurality of protrusions mounted on the elastic support ring, and in that the elastic support ring of the elastic latching member is positioned and elastically biased against an inner surface of the grip sleeve.
- the elastic support ring has a substantially C-shape with an open section.
- the elastic support ring extends around 360° and has at least one spring section to allow radial compression of the support ring
- the elastic latching member comprises three latch protrusions.
- the latch protrusions are spaced apart around the elastic support ring at substantially even distances from each other.
- the elastic support ring has an axial length (L) that is less than a diameter (D) of the support ring.
- the axial length (L) of the support ring is in a range of 0.3 to 0.6 times the diameter (D) of the elastic support ring 0.3> L/D> 0.6.
- the elastic support ring of the elastic latching member is positioned and elastically biased against an inner surface of the grip sleeve.
- the elastic latching member is positioned adjacent a plugging face of the grip sleeve.
- the grip sleeve comprises latch receiving orifices receiving therethrough the corresponding latch protrusions, all of the latch orifices except for one having a circumferential length that is greater than a circumferential length of the corresponding latch protrusion to allow a tangential displacement of the latch protrusion relative to the grip sleeve during inward radial biasing of the elastic support ring.
- the elastic support ring is machined or stamped out of metal.
- each latch protrusion comprises a chamfer on a front side for inwardly biasing the latching protrusions during coupling with a complementary connector, the chamfer starting from a front edge of the elastic support ring.
- the latching shoulder of the latch protrusion is orthogonal to the uncoupling direction.
- the latching shoulder of the latch protrusion comprises an inclined surface with respect to the uncoupling direction, configured to provide a limited force uncoupling of the push-pull connector from the complementary connector.
- the push-pull connector 1 comprises interconnection elements that may be in the form of electrical contacts as illustrated in the embodiment shown, or may comprise optical or fluidic interconnection elements, or a combination of any of the aforegoing.
- the interconnection elements are assembled within a housing which in the case of electrical contacts is an insulating housing.
- the push-pull connector further comprises an outer casing 4 within which the insulating housing is assembled, and a push-pull coupling mechanism.
- the push-pull coupling mechanism comprises a grip sleeve 6 slidably mounted on the outer casing 4, the grip sleeve being movable in an axial direction that is parallel to the plugging direction of the push-pull connector to the complementary connector 20.
- the push-pull coupling mechanism comprises a grip sleeve 6 slidably mounted on the outer casing 4, and a latching member 7 assembled to the grip sleeve 6.
- the latching member 7 comprises one or more latch protrusions 8 that have a latching shoulder 10 on a rear side and a chamfer 11 on a front side.
- the latching shoulder may be substantially orthogonal to the axial direction.
- the latching shoulder 10b may comprise a portion inclined in the unplugging direction with respect to the radial plane (i.e. the plane orthogonal to the axial plugging / unplugging direction), to provide a limited force uncoupling of the push-pull connector from the complementary connector.
- Such limited force uncoupling is a per se known function, and may serve for instance for safety reasons, or to prevent damage to interconnected devices if a cable coupled to one of the connectors is pulled with excessive force.
- the grip sleeve 6 comprises a grip ring portion 14 that may be provided with protrusions, serrations, or other features facilitating the grip between thumb and forefinger of a user when pulling back the grip sleeve.
- the grip sleeve further comprises a latching engagement portion 16 extending rearwardly from a mating face 21 of the connector, the latch engagement portion comprising one or more latch receiving orifices 18 arranged to allow the one or more latch protrusions 8 to extend therethrough.
- the chamfer 11 on a front side of the latch protrusion is configured to allow a front edge 23 of the latch receiving orifice 18 to inwardly bias the latch protrusions when the grip ring 6 is pulled rearwardly in the axial unplugging direction to disengage the latch protrusion from the complementary latching shoulder in the complementary connector 20.
- the latching member 7 comprises an elastic support ring 9 from which the latch protrusions 8 extend.
- the elastic support ring 9 comprises an open section 12a that allows the ring to bias radially inwardly when the latch engagement portion 16 of the grip sleeve 6 is pulled rearwardly in the unplugging direction thus engaging the chamfers 11 of the latch protrusions 8.
- the elastic support ring 9 is in the form of a split ring having an open section 12a, however in variants as illustrated in figures 6a to 6d , the elastic support ring 9 extends around 360° but comprises one or more elastically compressible sections 12b allowing the substantially continuous portions carrying the latching protrusions 8 to bias radially inwardly.
- the inward radial biasing of the support ring 9 changes its form to a smaller diameter allowing the latching protrusions to disengage from the complementary latching shoulders of the complementary connector.
- latch protrusions 8 There are a plurality of latch protrusions 8. In a preferred embodiment there are three latching protrusions 8.
- the latch receiving orifices 18 for receiving all of the latching protrusions, except optionally one of the latching protrusions, have a circumferential length that is greater than the circumferential length of the latching protrusion such that during the inward bending of the elastic support ring 9, a tangential displacement of the latching protrusions (except for one of them) is allowed relative to the grip sleeve.
- the elastic support ring 9 may be easily assembled within the grip sleeve 6, positioned against an inner surface 24 of the grip sleeve 6 adjacent a plugging end or face 21 of the grip sleeve.
- the elastic support ring is in a prestressed state, elastically biased against the inner surface 24, such that it remains securely assembled to the grip sleeve.
- the amount of elastic compression of the support ring i.e. the amount of pre-stressing, may be adjusted to vary the locking insertion and release force. This also provides for a very compact latching arrangement.
- the latch protrusions may be spaced apart around the elastic support ring at substantially even distances from each other.
- the elastic support ring has an axial length (L) that is less than a diameter (D) of the support ring.
- the axial length (L) of the elastic support is similar or slightly greater than a diameter (D) of the support ring.
- the axial length L of the support ring is less than the diameter D of the support ring and may advantageously be in a range of 0.3 to 0.6 times the diameter of the elastic support ring 0.3 > L / D > 0.6.
- the elastic latching member 7 is advantageously positioned adjacent a plugging face 21 of the grip sleeve, which also simplifies assembly and allows the connector arrangement to be compact.
- the elastic support ring 9 in an embodiment, may be machined or stamped out of metal. In a variant the elastic support ring may be injected. Other resistant elastic materials such as polycarbonate or other resistant polymers may however be used, depending on the requirements and applications
- the chamfer 11 of the latch protrusion may start from a front edge 25 of the elastic support ring.
- the beginning of the slope of the latch protrusion may however be at a certain distance in retreat from the from edge 25.
- the elastic support ring 9 has a very short dimension in the axial (plugging and unplugging) direction thus allowing the push-pull connector to have a more compact dimension, in particular a shorter length in the plugging direction compared to a conventional push-pull connector. Costs are also reduced by the simpler shape of the latching member 7 which also uses less materials than in the prior art solution illustrated in figure 1c . Easy assembly of the latching ring in the grip sleeve also reduces cost.
- embodiments of the invention provide higher security against inadvertent uncoupling than conventional push-pull connectors. This is because pulling forces on the push-pull connector acting on the latch protrusion shoulder 10 engaging the complementary shoulder 26 of the complementary connector 20 does not cause an inward biasing of the elastic support ring thus improving the security against inadvertent uncoupling. This is because forces acting on the latching protrusion create torsion on the support ring which requires very high forces compared to bending forces on a beam.
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
Push-pull connector (1) comprising a housing, interconnection elements mounted within the housing, an outer casing (4), and a push-pull coupling mechanism comprising a grip sleeve (6) and an elastic latching member (7), the elastic latching member (7) comprising a plurality of latch protrusions (8) on an elastic support, the grip sleeve slidably mounted on the outer casing and configured to bias the plurality of latch protrusions into a disengaged position when the grip sleeve is pulled in an uncoupling direction, the grip sleeve comprising latch receiving orifices (18) receiving therethrough the corresponding latch protrusions (8). The elastic support is in the form of an elastic support ring (9) configured to bias elastically radially the plurality of protrusions (8) mounted on the elastic support ring, and in that the elastic support ring of the elastic latching member is positioned and elastically biased against an inner surface (24) of the grip sleeve (6).
Description
- The present invention relates to a push-pull connector.
- A known type of push-pull connector for electrical contacts, is illustrated in
figures 1a and 1b . This known push-pull connector 1' is for pluggably and releasably connecting to acomplementary connector 20. The push-pull connector 1' comprises interconnection elements in the form of electrical contacts. The interconnection elements are secured in a body which in the case of electrical contacts is an insulating body or housing around which is provided an outer casing 4' and a push-pull coupling mechanism. - The push-pull coupling mechanism comprises a grip sleeve 6' slidably mounted on the outer casing and movable in the plugging direction (also referred to herein as the axial direction). The push-pull coupling mechanism further comprises a latching member 7' that has a latch protrusion 8' mounted on an elastic cantilever beam 19'. As the push-pull connector 1' is plugged to the
complementary connector 20, the latch protrusions 8' are biased elastically inwardly until they pass latching members in thecomplementary connector 20 and then spring outwardly such that a latching shoulder 10' of the latching protrusion 8' engages acomplementary latching shoulder 26 in thecomplementary connector 20. - When uncoupling the connectors, a user pulls the grip sleeve 6' rearwardly away from the
complementary connector 20 whereby a front end latch engagement portion 16' of the grip sleeve engages a front facing chamfer 11' of the latch protrusion 8' thereby inwardly biasing the latch protrusion such that it disengages the complementary latching shoulder in thecomplementary connector 20 to uncouple the connectors. - A user may thus couple the connectors by simply pushing the push-pull connector 1' into engagement with the
complementary connector 20, and to release the coupling by simply pulling back on the grip sleeve 6'. - A drawback is that the latching member 7' as illustrated in
figure 1c needs to have a certain length in order to have elastically flexible cantilever beams allowing sufficient displacement of the latching protrusions attached to a sufficiently stable and rigid support. In addition, the latching member 7' imparts a certain complexity in the machining and assembly of the connector, whereas there is a continuous desire to reduce the manufacturing cost of connectors as well as increase the compacity for certain applications. - For connector arrangements that are not intended to have a limited force uncoupling, e.g. as a safety release, another drawback of this conventional push-pull connector 1' is a possible undesirable uncoupling if a high pulling force is applied on the push-pull connector, for instance by pulling on a cable connected to the push-pull connector. A high force applied on the latch shoulder may cause the beam of the latching member 7' to pivot radially inwardly thus causing the connector to uncouple. This is because the force applied on the latching shoulder is decentered from the point of attachment of the latching member, thus creating a moment of rotation tending to pivot the beam inwardly.
- In view of the foregoing, it is an object of this invention to provide a push-pull connector that is economical to produce.
- It is advantageous to provide a push-pull connector that is compact.
- For certain applications, it is advantageous to provide a push-pull connector that is very secure, in particular against high traction forces on the push-pull connector.
- Objects of this invention have been achieved by providing a push-pull connector according to
claim 1. Dependent claims set forth various advantageous features of embodiments of the invention. - Disclosed herein is a push-pull connector comprising a housing, interconnection elements mounted within the housing, an outer casing, and a push-pull coupling mechanism comprising a grip sleeve and an elastic latching member, the elastic latching member comprising a plurality of latch protrusions on an elastic support, the grip sleeve slidably mounted on the outer casing and configured to bias the plurality of latch protrusions into a disengaged position when the grip sleeve is pulled in an uncoupling direction, the grip sleeve comprising latch receiving orifices receiving therethrough the corresponding latch protrusions.
- The elastic support is in the form of an elastic support ring configured to bias elastically radially the plurality of protrusions mounted on the elastic support ring, and in that the elastic support ring of the elastic latching member is positioned and elastically biased against an inner surface of the grip sleeve.
- In an advantageous embodiment, the elastic support ring has a substantially C-shape with an open section.
- In a variant, the elastic support ring extends around 360° and has at least one spring section to allow radial compression of the support ring
- In an advantageous embodiment, the elastic latching member comprises three latch protrusions.
- In an advantageous embodiment, the latch protrusions are spaced apart around the elastic support ring at substantially even distances from each other.
- In an advantageous embodiment, the elastic support ring has an axial length (L) that is less than a diameter (D) of the support ring.
- In an advantageous embodiment, the axial length (L) of the support ring is in a range of 0.3 to 0.6 times the diameter (D) of the elastic support ring 0.3> L/D> 0.6.
- In an advantageous embodiment, the elastic support ring of the elastic latching member is positioned and elastically biased against an inner surface of the grip sleeve.
- In an advantageous embodiment, the elastic latching member is positioned adjacent a plugging face of the grip sleeve.
- In an advantageous embodiment, the grip sleeve comprises latch receiving orifices receiving therethrough the corresponding latch protrusions, all of the latch orifices except for one having a circumferential length that is greater than a circumferential length of the corresponding latch protrusion to allow a tangential displacement of the latch protrusion relative to the grip sleeve during inward radial biasing of the elastic support ring.
- In an advantageous embodiment, the elastic support ring is machined or stamped out of metal.
- In an advantageous embodiment, each latch protrusion comprises a chamfer on a front side for inwardly biasing the latching protrusions during coupling with a complementary connector, the chamfer starting from a front edge of the elastic support ring.
- In an embodiment, the latching shoulder of the latch protrusion is orthogonal to the uncoupling direction.
- In a variant, the latching shoulder of the latch protrusion comprises an inclined surface with respect to the uncoupling direction, configured to provide a limited force uncoupling of the push-pull connector from the complementary connector.
- Further objects and advantageous features of the invention will be apparent from the claims, from the detailed description, and annexed drawings, in which:
-
Figures 1a and 1b are partial cross-sectional views of a connector arrangement according to the prior art in the unconnected state (figure 1a ) and connected state (figure 1b ); -
Figure 1c is a perspective view of a spring latching member of the connector arrangement offigures 1a and 1b ; -
Figures 2a and 2b are partial cross-sectional views of a connector arrangement according to an embodiment of the invention, in the unconnected state (figure 2a ) and connected state (figure 2b ); -
Figure 3a is a perspective view of a connector with push-pull coupling mechanism according to an embodiment of the invention; -
Figure 3b is a side view of the connector offigure 3a with a partial cross-section cut-out to show the latching protrusion; -
Figure 4a is a perspective view of a push-pull mechanism of the connector offigures 3a and 3b ; -
Figure 4b is a cross-sectional view of the push-pull mechanism offigure 4a ; -
Figures 5a to 5d are different views of an elastic latching member of the push-pull mechanism offigure 4a ; -
Figures 6a to 6d are different views of another variant of an elastic latching member of the push-pull mechanism according to an embodiment of the invention; -
Figures 7a is a partial cross-sectional views of a connector according to another embodiment of the invention with limited force uncoupling; -
Figures 7b is a side partial cross-sectional view of an elastic latching member of the push-pull mechanism according tofigure 7a . - Referring to
figures 2a to 5d , a push-pull connector 1 according to embodiments of the invention for coupling to acomplementary connector 20 is illustrated. The push-pull connector 1 comprises interconnection elements that may be in the form of electrical contacts as illustrated in the embodiment shown, or may comprise optical or fluidic interconnection elements, or a combination of any of the aforegoing. The interconnection elements are assembled within a housing which in the case of electrical contacts is an insulating housing. The push-pull connector further comprises anouter casing 4 within which the insulating housing is assembled, and a push-pull coupling mechanism. - The push-pull coupling mechanism comprises a
grip sleeve 6 slidably mounted on theouter casing 4, the grip sleeve being movable in an axial direction that is parallel to the plugging direction of the push-pull connector to thecomplementary connector 20. - The push-pull coupling mechanism comprises a
grip sleeve 6 slidably mounted on theouter casing 4, and alatching member 7 assembled to thegrip sleeve 6. - The
latching member 7 comprises one or morelatch protrusions 8 that have a latchingshoulder 10 on a rear side and achamfer 11 on a front side. In the embodiments illustrated infigures 2a to 5d , the latching shoulder may be substantially orthogonal to the axial direction. - In variants, as illustrated in
figures 7a and 7b , the latching shoulder 10b may comprise a portion inclined in the unplugging direction with respect to the radial plane (i.e. the plane orthogonal to the axial plugging / unplugging direction), to provide a limited force uncoupling of the push-pull connector from the complementary connector. Such limited force uncoupling is a per se known function, and may serve for instance for safety reasons, or to prevent damage to interconnected devices if a cable coupled to one of the connectors is pulled with excessive force. - The
grip sleeve 6 comprises agrip ring portion 14 that may be provided with protrusions, serrations, or other features facilitating the grip between thumb and forefinger of a user when pulling back the grip sleeve. The grip sleeve further comprises alatching engagement portion 16 extending rearwardly from amating face 21 of the connector, the latch engagement portion comprising one or more latch receivingorifices 18 arranged to allow the one or morelatch protrusions 8 to extend therethrough. Thechamfer 11 on a front side of the latch protrusion is configured to allow afront edge 23 of thelatch receiving orifice 18 to inwardly bias the latch protrusions when thegrip ring 6 is pulled rearwardly in the axial unplugging direction to disengage the latch protrusion from the complementary latching shoulder in thecomplementary connector 20. - According to an aspect of the invention, the
latching member 7 comprises anelastic support ring 9 from which thelatch protrusions 8 extend. In an embodiment, theelastic support ring 9 comprises an open section 12a that allows the ring to bias radially inwardly when thelatch engagement portion 16 of thegrip sleeve 6 is pulled rearwardly in the unplugging direction thus engaging thechamfers 11 of thelatch protrusions 8. - In the illustrated embodiments of
figures 4a to 5d , theelastic support ring 9 is in the form of a split ring having an open section 12a, however in variants as illustrated infigures 6a to 6d , theelastic support ring 9 extends around 360° but comprises one or more elasticallycompressible sections 12b allowing the substantially continuous portions carrying thelatching protrusions 8 to bias radially inwardly. The inward radial biasing of thesupport ring 9 changes its form to a smaller diameter allowing the latching protrusions to disengage from the complementary latching shoulders of the complementary connector. - There are a plurality of
latch protrusions 8. In a preferred embodiment there are three latchingprotrusions 8. - The
latch receiving orifices 18 for receiving all of the latching protrusions, except optionally one of the latching protrusions, have a circumferential length that is greater than the circumferential length of the latching protrusion such that during the inward bending of theelastic support ring 9, a tangential displacement of the latching protrusions (except for one of them) is allowed relative to the grip sleeve. - The
elastic support ring 9 may be easily assembled within thegrip sleeve 6, positioned against aninner surface 24 of thegrip sleeve 6 adjacent a plugging end or face 21 of the grip sleeve. The elastic support ring is in a prestressed state, elastically biased against theinner surface 24, such that it remains securely assembled to the grip sleeve. The amount of elastic compression of the support ring, i.e. the amount of pre-stressing, may be adjusted to vary the locking insertion and release force. This also provides for a very compact latching arrangement. - The latch protrusions may be spaced apart around the elastic support ring at substantially even distances from each other.
- In preferred embodiments, the elastic support ring has an axial length (L) that is less than a diameter (D) of the support ring.
- In variants, for instance for small diameter connectors, it is possible that the axial length (L) of the elastic support is similar or slightly greater than a diameter (D) of the support ring.
- In advantageous embodiments, the axial length L of the support ring is less than the diameter D of the support ring and may advantageously be in a range of 0.3 to 0.6 times the diameter of the elastic support ring 0.3 > L/D > 0.6.
- The
elastic latching member 7 is advantageously positioned adjacent a pluggingface 21 of the grip sleeve, which also simplifies assembly and allows the connector arrangement to be compact. - The
elastic support ring 9, in an embodiment, may be machined or stamped out of metal. In a variant the elastic support ring may be injected. Other resistant elastic materials such as polycarbonate or other resistant polymers may however be used, depending on the requirements and applications - For a particularly compact length, the
chamfer 11 of the latch protrusion may start from afront edge 25 of the elastic support ring. In variants, the beginning of the slope of the latch protrusion may however be at a certain distance in retreat from the fromedge 25. - Advantageously, the
elastic support ring 9 has a very short dimension in the axial (plugging and unplugging) direction thus allowing the push-pull connector to have a more compact dimension, in particular a shorter length in the plugging direction compared to a conventional push-pull connector. Costs are also reduced by the simpler shape of the latchingmember 7 which also uses less materials than in the prior art solution illustrated infigure 1c . Easy assembly of the latching ring in the grip sleeve also reduces cost. - Importantly, in applications requiring secure high force coupling, embodiments of the invention provide higher security against inadvertent uncoupling than conventional push-pull connectors. This is because pulling forces on the push-pull connector acting on the
latch protrusion shoulder 10 engaging thecomplementary shoulder 26 of thecomplementary connector 20 does not cause an inward biasing of the elastic support ring thus improving the security against inadvertent uncoupling. This is because forces acting on the latching protrusion create torsion on the support ring which requires very high forces compared to bending forces on a beam. -
- prior art Push-pull connector 1'
- interconnection elements
electrical contacts - insulating housing
- outer casing 4'
latching member 7'- latching protrusion 8'
shoulder 10' - elastic cantilever beam 19'
- latching protrusion 8'
- interconnection elements
-
Push-
pull connector 1- interconnection elements
optical, electrical, fluidic interconnection elements
electrical contacts - insulating housing
-
outer casing 4 - push-pull coupling mechanism
-
grip sleeve 6- grip ring portion14
- latch
engagement portion 16- latch receiving
orifice 18
front edge 23 -
inner surface 24 - plugging
end 21
- latch receiving
- latching
member 7- latch
protrusion 8-
shoulder 10
limited force release shoulder 10b -
chamfer 11
-
-
elastic support ring 9- open section 12a
-
spring section 12b -
front edge 25 - axial length L
- diameter D
- latch
-
- interconnection elements
-
Complementary connector 20
complementary latchingshoulder 26
Claims (13)
- Push-pull connector (1) comprising a housing, interconnection elements mounted within the housing, an outer casing (4), and a push-pull coupling mechanism comprising a grip sleeve (6) and an elastic latching member (7), the elastic latching member (7) comprising a plurality of latch protrusions (8) on an elastic support, the grip sleeve slidably mounted on the outer casing and configured to bias the plurality of latch protrusions into a disengaged position when the grip sleeve is pulled in an uncoupling direction, the grip sleeve comprising latch receiving orifices (18) receiving therethrough the corresponding latch protrusions (8), characterized in that the elastic support is in the form of an elastic support ring (9) configured to bias elastically radially the plurality of protrusions (8) mounted on the elastic support ring, and in that the elastic support ring of the elastic latching member is positioned and elastically biased against an inner surface (24) of the grip sleeve (6).
- The push-pull connector of the preceding claim wherein the elastic support ring has a substantially C-shape with an open section (12a).
- The push-pull connector of claim 1 wherein the elastic support ring extends around 360° and has at least one spring section (12b) to allow radial compression of the support ring.
- The push-pull connector of the preceding claim wherein the elastic latching member comprises three latch protrusions.
- The push-pull connector according to any preceding claim wherein the latch protrusions are spaced apart around the elastic support ring at substantially even distances from each other.
- The push-pull connector of any preceding claim wherein the elastic support ring has an axial length (L) that is less than a diameter (D) of the support ring.
- The push-pull connector of the preceding claim wherein the axial length (L) of the support ring is in a range of 0.3 to 0.6 times the diameter (D) of the elastic support ring 0.3> L/D> 0.6.
- The push-pull connector of any preceding claim wherein elastic latching member (7) is positioned adjacent a plugging face (21) of the grip sleeve.
- The push-pull connector of any preceding claim wherein all of the latch orifices except for one having a circumferential length that is greater than a circumferential length of the corresponding latch protrusion configured to allow a tangential displacement of the latch protrusion relative to the grip sleeve during inward radial biasing of the elastic support ring.
- The push-pull connector of any preceding claim wherein the elastic support ring (9) is machined or stamped out of metal.
- The push-pull connector of any preceding claim wherein each latch protrusion comprises a chamfer (11) on a front side for inwardly biasing the latching protrusions during coupling with a complementary connector (20), the chamfer starting from a front edge (25) of the elastic support ring.
- The push-pull connector of any preceding claim wherein the latching shoulder (10) of the latch protrusion is orthogonal to the uncoupling direction.
- The push-pull connector of any preceding claim 1-11 wherein the latching shoulder (10) of the latch protrusion comprises an inclined surface with respect to the uncoupling direction, configured to provide a limited force uncoupling of the push-pull connector from the complementary connector.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22208419.6A EP4372928A1 (en) | 2022-11-18 | 2022-11-18 | Push-pull connector |
PCT/EP2023/080710 WO2024104792A1 (en) | 2022-11-18 | 2023-11-03 | Push-pull connector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP22208419.6A EP4372928A1 (en) | 2022-11-18 | 2022-11-18 | Push-pull connector |
Publications (1)
Publication Number | Publication Date |
---|---|
EP4372928A1 true EP4372928A1 (en) | 2024-05-22 |
Family
ID=84360146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP22208419.6A Withdrawn EP4372928A1 (en) | 2022-11-18 | 2022-11-18 | Push-pull connector |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP4372928A1 (en) |
WO (1) | WO2024104792A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3671922A (en) * | 1970-08-07 | 1972-06-20 | Bunker Ramo | Push-on connector |
EP0050575A1 (en) * | 1980-10-22 | 1982-04-28 | RADIALL INDUSTRIE, Société Anonyme dite: | Fast locking-unlocking electrical connector |
EP3273548A1 (en) * | 2016-07-20 | 2018-01-24 | Yamaichi Electronics Deutschland GmbH | Push-pull connector and locking element for a push-pull connector |
-
2022
- 2022-11-18 EP EP22208419.6A patent/EP4372928A1/en not_active Withdrawn
-
2023
- 2023-11-03 WO PCT/EP2023/080710 patent/WO2024104792A1/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3671922A (en) * | 1970-08-07 | 1972-06-20 | Bunker Ramo | Push-on connector |
EP0050575A1 (en) * | 1980-10-22 | 1982-04-28 | RADIALL INDUSTRIE, Société Anonyme dite: | Fast locking-unlocking electrical connector |
EP3273548A1 (en) * | 2016-07-20 | 2018-01-24 | Yamaichi Electronics Deutschland GmbH | Push-pull connector and locking element for a push-pull connector |
Also Published As
Publication number | Publication date |
---|---|
WO2024104792A1 (en) | 2024-05-23 |
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Effective date: 20240423 |