WO2002025780A1 - Mechanical manual tooling for dismounting free air railway contact wire clamp connectors - Google Patents
Mechanical manual tooling for dismounting free air railway contact wire clamp connectors Download PDFInfo
- Publication number
- WO2002025780A1 WO2002025780A1 PCT/EP2001/010683 EP0110683W WO0225780A1 WO 2002025780 A1 WO2002025780 A1 WO 2002025780A1 EP 0110683 W EP0110683 W EP 0110683W WO 0225780 A1 WO0225780 A1 WO 0225780A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- members
- engagement
- sliding
- arm
- guide means
- Prior art date
Links
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
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/26—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for engaging or disengaging the two parts of a coupling device
-
- 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
- H01R13/02—Contact members
- H01R13/28—Contacts for sliding cooperation with identically-shaped contact, e.g. for hermaphroditic coupling devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/50—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw
- H01R4/5083—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a wedge
Definitions
- the present invention relates to a tool for separating two clamp half-members keyed to each other for holding a free air railway contact wire in between and being displaceable relative to each other in the direction of the wire.
- such a connector 40 of the prior art is comprised of two clamp half- members 41 and 41' mounted in pairs and having similar configurations. Respective two clamp half-members of a pair are positioned on top of a railway contact wire 42 in spaced relationship relative to the longitudinal direction of the wire.
- the contact wire having the sides thereof cut in such a way that longitudinal notches 43 are provided, and a cross sectional shape, approaching that one of an 8 (eight), is formed thereby, as shown in Fig. 8.
- Each clamp half-member 41 , 41' includes at one side thereof, a side portion extension 43 extending towards and along the direction of a contact wire 42 such that it is overlapping an upper portion of the contact wire when mounted thereon. Furthermore, each clamp half-member 41, 41' includes a longitudinal wedge portion 44, 44' protruding from an inner end face 45, 45' thereof and extending in the direction of a contact wire and forming one piece with the respective side portion extension . At each inner end face a recess 46, 46' is provided for receiving a corresponding wedge portion of an other half-member. Next, when mounting, the two half-members are displaced toward each other with the contact wire disposed between the side portion extensions thereof.
- each one of the wedge portions 44, 44' will be inserted into the corresponding recess provided in each one of the opposing inner end faces.
- a sufficient force will be applied to the outer main end faces 48, 48' of each of the clamp half-members such that they will brought into their end positions in which they become wedged together.
- Single brackets 49, 49' having protrusions 50, 50' are provided on top of each of the two clamp half-members which will be brought into interlocking engagement by these protrusions when attaining the displacement end positions. It can be seen that a free air railway contact wire will be securely clamped between the two half-members when in the end positions thereof.
- the present invention is aimed to overcome the above-mentioned drawbacks of the conventional art, and its object is to provide a tool facilitating a separation of clamp half- members keyed to each other.
- a further object is to provide such a tool enabling as well easy mounting of two clamp half-members.
- Fig. 1 shows a perspective view of a first embodiment of a tool according to the present invention for separating two clamp half-members
- Fig. 2 shows a perspective view of the tool of Fig. 1 with the arms thereof further apart;
- FIG. 3a to 3d show diagrams for explaining the principles employed with a second embodiment of a tool according to the present invention.
- Fig. 4 shows a side view, partly in broken up, of a second embodiment of a tool of the present invention using the principles as shown in Fig. 3a to 3d.
- Fig. 5 shows in a perspective view of the tool shown in Fig. 4;
- Fig. 6 shows in a perspective view a pair of clamp half-members partly mounted to a railway conductor wire.
- Fig. 7 shows in a perspective view a pair of clamp half-members separated from each other, not positioned at a railway conductor wire.
- Fig. 8 shows in sectional view a free air railway conductor wire in the shape similar to the number eight (8).
- Fig. 1 shows an embodiment of a tool according to the invention generally designated by reference numeral 1.
- a bolt-less connector 40 is connected to a free air railway contact wire 42 .
- the bolt-less connector 40 is composed of two clamp half-members 41 , 41' as was explained above with regard to the prior art and as shown in Fig. 6 to 8.
- the tool 1 is comprised of a first arm 2 and a second arm 3 which are mounted for relative rotation to each other about a rotational point represented by a shaft 4.
- This shaft passes through each one of an end portion of both arms 2 and 3, respectively.
- the first arm 2 comprises a crank-like extension 5 at an end portion thereof close to shaft 4.
- This crank-like extension 5 has such a shape that it may pass underneath the contact wire 42 when the tool is in operation.
- an engagement member 6 At the distal end of this crank-like extension 5 there is provided an engagement member 6 to be brought into engagement with a predetermined end portion of a clamp half-member, such as the minor end face 51 in Fig. 7.
- the second arm 3 includes at its end portion close to shaft 4 an extension 7 having a U shape.
- the basis 8 of the U-extension 7 provides for an engagement member for engagement with a minor end face of a clamp half-member, for example.
- the axes of the legs of the U-extension embrace with arm 3 to which it is secured, an angle apt for proper operation of the tool, preferably about 90°.
- the legs 8 of the U-extension 7 are secured to the end portion of the second arm 3.
- the U-extension 7 and the second arm 3 may be made of a single piece.
- both arms 2 and 3 will be opened by relative rotation there between (Fig. 1). Thereby the engagement members 6 and 8 of the crank-like extension 5 of the first arm 2 and the basis 8 of the U-extension of the second arm 3 will be moved apart from each other.
- the tool according to the invention operates similar to a pair of tongs, having, however, special engagement members for grasping clamp half-members of a bolt-less connector at the appropriate location.
- a particular advantage of the described tool is the crank-like extension of one of the arms thereof. This configuration allows to pass this extension underneath a contact wire allowing a simpler and easier access to the bolt-less connector to be dismounted.
- Fig. 3a shows two levers, a and b and a link member c .
- Lever a and b are rigidly secured to each other at respective first ends and are commonly rotatable around point A.
- Lever b has its second end thereof articulated to a first end of link member c at articulation point B.
- the second end of link member c is articulated to an articulation point C at an end portion of a first displaceable member d .
- a stopper i prevents any displacement of the upper body h to the left as viewed in the Fig., whilst in the contrary thereto lower body g may be displaced to the left in Fig. 3a. It is noted that rotational point A and stopper i have a fixed spatial relationship.
- lever a when lever a is rotated counterclockwise around point A then lever b is as well rotated counterclockwise due to the rigid connection between the two levers. Furthermore, once lever b is rotated counterclockwise, link member c will be moved to the left whilst rotating about point C and pushes displaceable member d toward displaceable member e acting against the strength of helical spring f. Further rotation will bring displaceable member d into abutting contact against displaceable member e. When these two displaceable members are not far away from coming in contact with each other, link member c and lever b are embracing a large obtuse angle. A further counterclockwise rotation of lever a will bring both displaceable members e and d in abutting contact against each other, and, therefor, any force applied to displaceable member d will directly be transmitted to displaceable member e.
- Fig. 3a to 3c the basic principles applied for dismounting a bolt-less connector, as described above, have been explained.
- the basic principal of the present invention may be extended such that it becomes possible to mount a bolt- less connector comprising two clamp half-members.
- Fig. 3d The parts a to h are the same as in Fig. 3a to 3c.
- Part j is a blocking member and may be inserted between the two displaceable members e and d. Now, when a force is applied to displaceable member d by means of a rotation of lever a then this force will be directly transmitted to displaceable member e via blocking element j.
- the arrangement shown in this Fig. may be used for mounting a bolt-less connector.
- the arrangement can be used to bring two clamp half-members to become wedged to each other for holding a free air railway contact wire in between.
- Fig. 4 shows a tool 10 according to the present invention using the principles as explained with reference to Fig. 3a to 3d.
- the tool 10 comprises a housing 11 having a general cylindrical cross section.
- An arm 12 is fixedly mounted with its one end portion to one end portion of the housing 11 by means of a bracket 13.
- the arm 12 may be secured to the bracket 13 by means of bolts as it is known in the art.
- a second arm 14 is mounted with its one end portion for rotation about a shaft 15 to that bracket 13.
- a first sliding member 16 and a second sliding member 17 are received within cylindrical housing 11 for sliding displacement.
- a helical spring 18 is arranged between the sliding members 16 and 17. Whilst the shaft 15, allowing a rotation of arm 14, is positioned at the one end portion of cylindrical housing 11 , a stopper means 19 is mounted opposite at the other end of housing 11 and fixedly secured thereto. The second sliding member 17 being positioned at the side of the stopper means.
- a third sliding member 20 is positioned within housing 11 between the first sliding member 16 and shaft 15.
- a link member 21 is articulated with its one end portion to arm 14 at an articulation point 22 in proximity to shaft 15 and is articulated with its other end portion to a pin 23 of the third sliding member 20.
- first, second and third sliding members 16, 17, and 20 are aligned within housing 11 with the spring 18 between first and second sliding members 16 and 17, respectively. It is noted, that the first sliding member 16 and the second sliding member 17 are pushed apart from each other by the helical spring 18.
- the tool 10 comprises first and second engagement members 26 and 27, respectively.
- First engagement member 26 is fixedly secured to the housing 11 such that a displacement along the longitudinal axis of housing 11 is not possible. However, a rotational movement may be provided for as will explained later on.
- Second engagement member 27 is secured to the second sliding member 17.
- Fig. 5 shows in a clearer manner, as to how first and second engagement members 26, 27 are arranged with regard to the housing 11.
- a window 28 is cut out from housing 11 to allow displacement of engagement member 27 in the longitudinal direction of housing 11.
- the engagement members 26 and 27 each have a bent portion 29 and 30, respectively.
- the second engagement member 27 is shown as having a recess such that bent portion 30 has a smaller width than bent portion 29 of first engagement member 26. Due to the recessed configuration a nose portion 32 is provided. This nose portion 32 is to be brought into engagement with a respective minor end face of the clamp half- members, such as minor end face 51' in Fig. 7.
- Rotational point A corresponds to shaft 15 and articulation point B corresponds to articulation point 22 of link member 21 and second arm 14.
- Link member 21 corresponds to link member c
- articulation point C corresponds to pin 23 as the articulation point between link member 21 and the third sliding member.
- first engagement member 26 is stationary with respect to a displacement relative to the housing 11. However, it might be rotatable about the longitudinal axis of housing 11 such that another corresponding engagement element 26' may be brought in an upward position when engagement element 26 will be rotated in a downward position. This feature allows to have a different spacing between the respective engagement elements 26 and 27 or 26' and 27 such that bolt-less connectors of different lengths may be worked on.
- first sliding member 16 is provided with a nose portion 35 which may be received by a recess portion 36 provided for in second sliding member 17. Therefore, the first sliding member 16 may be brought in abutting engagement with the second sliding member 16 when the nose portion 35 is received by that recess portion 36.
- first sliding member 16 is preferably mounted for rotation within housing 11.
- a small handle 37 is mounted to the first sliding member 17 allowing a rotation of this sliding member about the longitudinal axis of housing 11.
- a cut out portion (not shown) will be provided within housing 11 to give a free passage for the movement of handle 37.
- the invention provides a very useful tool for dismounting bolt-less connectors.
- a further embodiment of such a tool it is possible to use this tool for dismounting a bolt-less connector as well as for mounting same. Consequently, this tool is very versatile and useful.
- the guide means may be embodied by a guide rod passing through the sliding members and a spring.
- Each of the sliding members may have the form of a cup the open sides facing to each and receiving partly a spring. It is not necessary that the housing has a circular cross-section a rectangular would also be possible. It could also envisaged to operate the tool by means of a power source, e.g. pressurized air, with appropriate mechanics applied to replace the arms.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Manufacturing Of Electrical Connectors (AREA)
- Electric Cable Installation (AREA)
- Processing Of Terminals (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT01982294T ATE474348T1 (en) | 2000-09-25 | 2001-09-15 | MECHANICAL HAND TOOL FOR DISMANTLING OUTDOOR RAILWAY WIRE CONNECTORS |
AU2002213918A AU2002213918A1 (en) | 2000-09-25 | 2001-09-15 | Mechanical manual tooling for dismounting free air railway contact wire clamp connectors |
DE60142571T DE60142571D1 (en) | 2000-09-25 | 2001-09-15 | MECHANICAL HAND TOOL FOR DISMOUNTING TRACTION RAILWAY CONNECTORS |
EP01982294A EP1320911B1 (en) | 2000-09-25 | 2001-09-15 | Mechanical manual tooling for dismounting free air railway contact wire clamp connectors |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00402652.2 | 2000-09-25 | ||
EP00402652 | 2000-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002025780A1 true WO2002025780A1 (en) | 2002-03-28 |
Family
ID=8173877
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2001/010683 WO2002025780A1 (en) | 2000-09-25 | 2001-09-15 | Mechanical manual tooling for dismounting free air railway contact wire clamp connectors |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1320911B1 (en) |
AT (1) | ATE474348T1 (en) |
AU (1) | AU2002213918A1 (en) |
DE (1) | DE60142571D1 (en) |
WO (1) | WO2002025780A1 (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177567A (en) * | 1963-08-12 | 1965-04-13 | Ivor H Gehrman | Mating tool |
DE3522735A1 (en) * | 1985-06-25 | 1987-01-08 | Roco Modellspielwaren Gmbh & C | Coupling half of a coupling device for model railways |
GB2270426A (en) * | 1992-09-03 | 1994-03-09 | Sumitomo Wall Systems Ltd | Testing electrical connectors and ensuring contact retention |
WO1998049757A1 (en) * | 1997-04-30 | 1998-11-05 | British Nuclear Fuels Plc | A plug and socket assembly for remote handling |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5421068A (en) * | 1993-09-13 | 1995-06-06 | The Whitaker Corporation | Fastener assembly |
-
2001
- 2001-09-15 AT AT01982294T patent/ATE474348T1/en not_active IP Right Cessation
- 2001-09-15 AU AU2002213918A patent/AU2002213918A1/en not_active Abandoned
- 2001-09-15 WO PCT/EP2001/010683 patent/WO2002025780A1/en active Application Filing
- 2001-09-15 EP EP01982294A patent/EP1320911B1/en not_active Expired - Lifetime
- 2001-09-15 DE DE60142571T patent/DE60142571D1/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3177567A (en) * | 1963-08-12 | 1965-04-13 | Ivor H Gehrman | Mating tool |
DE3522735A1 (en) * | 1985-06-25 | 1987-01-08 | Roco Modellspielwaren Gmbh & C | Coupling half of a coupling device for model railways |
GB2270426A (en) * | 1992-09-03 | 1994-03-09 | Sumitomo Wall Systems Ltd | Testing electrical connectors and ensuring contact retention |
WO1998049757A1 (en) * | 1997-04-30 | 1998-11-05 | British Nuclear Fuels Plc | A plug and socket assembly for remote handling |
Also Published As
Publication number | Publication date |
---|---|
EP1320911A1 (en) | 2003-06-25 |
DE60142571D1 (en) | 2010-08-26 |
EP1320911B1 (en) | 2010-07-14 |
ATE474348T1 (en) | 2010-07-15 |
AU2002213918A1 (en) | 2002-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4396183A (en) | Power actuated clamp | |
US4381661A (en) | Tool having two working jaws | |
US6115898A (en) | Force multiplying apparatus for clamping a workpiece and forming a joint therein | |
US6196969B1 (en) | Tissue retractor adapted for the attachment of an auxiliary element | |
EP0582326B1 (en) | Saw-blade fixation device | |
US5153984A (en) | Tool for crimping a double connection of a connector to a conductor and to insulation | |
US6131491A (en) | Self-locking chuck key | |
CN111406349B (en) | Pressure clamp | |
US20060226588A1 (en) | Quick release bar clamp | |
JPH0547353B2 (en) | ||
JP3293860B2 (en) | Tightening tool for pressing end sleeves for conductors | |
AU739609B2 (en) | A system for the remote handling of equipment particularly adapted to elastic rings | |
EP0207533B1 (en) | Improved claws for weaving machine | |
EP0181209A1 (en) | Retaining ring tool | |
US4526070A (en) | Pliers-type tool | |
US4243257A (en) | Gripper mechanism | |
US4483517A (en) | Tractive apparatus for hauling a cable, a bar or a similar member | |
US20070191883A1 (en) | Applying forceps for a clip | |
US5499800A (en) | Adjustable toggle action quick release locking bar clamp | |
GB2129360A (en) | Wire stripping tongs | |
EP1320911B1 (en) | Mechanical manual tooling for dismounting free air railway contact wire clamp connectors | |
US4919017A (en) | Hose clamp tool | |
US4199972A (en) | Gripping or pressing appliance | |
US3182485A (en) | Compression tool | |
CA2022519A1 (en) | Rapid jaw adjustment for tools and the like |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NO NZ PH PL PT RO RU SD SE SG SI SK SL TJ TM TR TT TZ UA UG US UZ VN YU ZA ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AM AZ BY KG KZ MD RU TJ TM AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 2001982294 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 2001982294 Country of ref document: EP |
|
REG | Reference to national code |
Ref country code: DE Ref legal event code: 8642 |
|
NENP | Non-entry into the national phase |
Ref country code: JP |