EP0978901A1 - Anordnung zum Verriegeln einer Batterieklemme - Google Patents

Anordnung zum Verriegeln einer Batterieklemme Download PDF

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Publication number
EP0978901A1
EP0978901A1 EP98830483A EP98830483A EP0978901A1 EP 0978901 A1 EP0978901 A1 EP 0978901A1 EP 98830483 A EP98830483 A EP 98830483A EP 98830483 A EP98830483 A EP 98830483A EP 0978901 A1 EP0978901 A1 EP 0978901A1
Authority
EP
European Patent Office
Prior art keywords
locking device
clamp
pressing element
locking
free ends
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Withdrawn
Application number
EP98830483A
Other languages
English (en)
French (fr)
Inventor
Antonio Fachetti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Meccanotecnica Codognese SpA
Original Assignee
Meccanotecnica Codognese SpA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Meccanotecnica Codognese SpA filed Critical Meccanotecnica Codognese SpA
Priority to EP98830483A priority Critical patent/EP0978901A1/de
Priority to IT1999MI001718A priority patent/IT1313316B1/it
Publication of EP0978901A1 publication Critical patent/EP0978901A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
    • H01R11/287—Intermediate parts between battery post and cable end piece
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/28—End pieces consisting of a ferrule or sleeve
    • H01R11/281—End pieces consisting of a ferrule or sleeve for connections to batteries
    • H01R11/283—Bolt, screw or threaded ferrule parallel to the battery post
    • 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
    • H01R4/5091—Clamped connections, spring connections utilising a cam, wedge, cone or ball also combined with a screw using a wedge combined with a screw

Definitions

  • the present invention relates to a device for locking a battery clamp, which is substantially in the form of an open ring, by moving the free ends of the clamp together, wherein the locking device comprises a pressing element and an abutment surface which is abutted by a first free end of the clamp, which end is pushed by the other free end under the action of the pressing element.
  • Car accumulators are provided with electrical poles which are generally in cylindrical or frustoconical form and which are arranged at the top and projecting upwards.
  • the conductors are connected to the electrical poles by using battery clamps which are in the form of an open ring or are U-shaped and the free ends of which are connected by a locking bolt.
  • the locking of the above-mentioned bolt causes the free ends of the clamp to move together and therefore the clamp to be clamped on the electrical pole of the accumulator.
  • the locking bolt is arranged transversely relative to the axis of the clamp so that, when the clamp has been fitted on the upright electrical pole, the bolt extends in the horizontal direction.
  • the locking bolt is arranged so that it is upright, that is to say, it is accessible from above for locking.
  • the clamp is clamped on the battery pole by utilising the deformation of the circular holes in the clamp after the latter has been fitted on the electrical pole of the accumulator, as shown clearly by Figure 3 of the document.
  • the problem to be solved by the present invention is to provide a device for locking an accumulator clamp, which device has structural and functional characteristics such as to satisfy the above-mentioned need and at the same time to avoid the disadvantages discussed with reference to the prior art.
  • 1 generally indicates a locking device for a battery clamp 2 which is substantially in the form of an open ring or U-shaped and which has free ends 5 and 6.
  • the clamp 2 is locked on an electrical pole of an accumulator (not shown in the drawings) by causing the above-mentioned free ends to move together.
  • the clamp 2 comprises a conductive body formed from metal plate and forming a pair of lower and upper open rings 3 and 4, respectively, for locking on the battery pole.
  • the two open rings 3 and 4 are connected to one another by a pair of respective locking supports 25 and 26.
  • the upper ring 4 extends in the form of a squared hooking tab 9 provided with a hooking tooth 10, while the lower ring 3 extends in the form of a squared hooking piece 11 which is provided with an opening for the engagement of the tooth 10.
  • a connection that results from the hooking-in of pieces and that is remote from the pair of supports 25 and 26 is therefore formed between the two rings.
  • the open ring 3 extends laterally in the form of an upright bracket 13 ending in a support bracket 14 provided with means known per se for anchoring electrical terminals.
  • openings 15 for the passage of bolts for locking the ends of electrical cables are formed in the bracket 14.
  • the bracket 14 can advantageously end in a locking clip or a cable lug (represented in Figure 5 by a broken line) which is provided with tongues for permanent fastening for clinching to the end of an electrical cable.
  • the bracket 14 may have an opening for fastening another locking bolt for a cable end.
  • a base element 32 of insulating material for the partial accommodation of the conductive body is also associated with the clamp 2.
  • the base element 32 is provided with an upright wall 33 and with a bearing bracket 34 which co-operate with the bracket 13 and the support bracket 14, respectively, to ensure their unequivocal reciprocal positioning.
  • a spacer 35 provided with a through-opening extends upwards from the base element 32.
  • the spacer 35 is interposed between the free ends 5 and 6, more precisely between the supports 25 and 26, in order to limit the locking of the rings 3 and 4 to the minimum.
  • the spacer 25 prevents wear on the material of the clamp 2, which, still retaining its resilience, can be reused for repeated mounting and dismounting operations from the electrical pole of the accumulator.
  • the clamp 2 corresponds to that forming the subject matter of the previous Patent Application EP 0809327-A2 of the Applicant.
  • the locking device 1 according to the invention can be used effectively also with different clamps, such as, for example, those formed by cast blocks of lead alloy.
  • the locking device 1 comprises a pressing element 7 and an abutment surface 20 against which a first free end 5 of the above-mentioned free ends of the clamp 2 abuts, being pushed in a first direction X-X by the other free end 6 under the action of the pressing element, in such a manner as to ensure that the clamp is locked.
  • the pressing element 7 can be caused to act in a second direction Y-Y, which is substantially at right-angles to the first direction X-X, so that its position can be varied.
  • the locking device 1 comprises means for the angular transmission of the movement of the pressing element 7 from the direction Y-Y to the direction X-X. Consequently, a movement of the pressing element in the second direction Y-Y causes a corresponding movement of the free ends 5 and 6 of the clamp in the direction X-X of locking the clamp 2.
  • the above-mentioned means for the angular transmission of the movement of the pressing element 7, in the form of guide means which are arranged in a plane inclined relative both to the direction X-X and to the direction Y-Y, are associated with the pressing element 7 which acts as a wedge which can be operated from above in the direction Y-Y.
  • the locking device 1 comprises a ring-like retaining element 8, which accommodates both the free ends 5 and 6 of the clamp 2 and the pressing element 7.
  • the free ends 5 and 6 of the clamp are positioned between the pressing element 7 and a portion 20 of the retaining element 8 constituting the above-mentioned abutment surface 20.
  • the retaining element 8 is formed by a strip which is bent in such a manner as to form a closed ring. At one end, the strip comprises a hooking tab 21 for engagement in a corresponding opening 22 in the opposite end. A connection produced by hooking in is thus formed between the two ends ( Figure 3).
  • the strip is produced from metal material, preferably steel.
  • the retaining element 8 comprises a second portion 23 which is opposite to and facing the portion forming the abutment surface 20 and which is arranged in a plane which is inclined relative to the directions X-X and Y-Y.
  • the retaining element 8 is in the form of a right-angled trapezium of which the second portion 23 and the abutment surface 20 constitute the inclined side and the upright side, respectively.
  • the second portion 23 is coupled to and in contact with a corresponding inclined surface 24 of the pressing element 7.
  • a rod 27 extends upwards in the direction Y-Y from the pressing element 7 with which it is unitary.
  • the rod 27 extends through an opening 28 in the retaining element 8.
  • the end portion of the rod 27 projecting from the opening in the retaining element 8 is threaded and a threaded nut 16 is engaged thereon.
  • the pressing element 7 is caused to act and is consequently positioned in the direction Y-Y.
  • the above-mentioned opening 28 is in the form of an eyelet extending in the direction X-X in order to permit a movement of the rod 27, and therefore of the pressing element 7 which is unitary therewith, in the locking direction X-X.
  • the locking device 1 comprises a pin 29 having a shank extending axially in the locking direction X-X through respective through-holes in the free ends 5 and 6.
  • the pin 29 comprises a head 30 interposed between the pressing element 7 and the free end 6 of the clamp 2.
  • the portion 20 of the retaining element which is abutted by the end 5 has a hole 31 suitable for permitting the passage of the shank of the pin 29 during the locking of the clamp, as will become clearer in the course of the description.
  • the function of the pin 29 is to guide the free ends 5 and 6 during locking, and also to secure them to the locking device 1 in order to prevent them from becoming detached.
  • the free ends 5 and 6 of the clamp 2 can be clamped onto the locking device 1 by arranging grooves in the external surfaces of the free ends of the clamp, which grooves extend in the direction X-X and in which the retaining element 8 can be inserted.
  • the pin 29 is inserted in the through-holes in the free ends 5 and 6, starting from the free end 5 and until the head 30 is brought into contact with the latter.
  • the pressing element 7 is associated with the retaining element 8 by inserting the rod 27 in the opening 28 and tightening the threaded nut 16.
  • the metal strip constituting the retaining element 8 is then positioned around the free ends 5 and 6 of the clamp 2 and is closed on itself until the hooking connection ( Figure 3) of the tab 21 in the opening 22 is achieved.
  • the movement of the pressing element 7 in the direction X-X is transmitted to the free end 6 by the interposition of the head 30 of the pin 29. During the locking of the clamp 2, therefore, a corresponding movement of the entire pin 29 towards the abutment surface 20 occurs.
  • the through-hole 31 of the abutment surface 20 permits the passage of the shank of the pin 29 during the locking of the clamp 2.
  • the inclined portion 23 of the retaining element 8 acts as an inclined guide for the pressing element 7.
  • the device for locking a battery clamp according to the invention satisfies the requirement of carrying out the locking of the clamp by acting from above, in such a manner as to avoid problems of bulk and handling the locking tools, and at the same time the requirement of avoiding the problems presented by the locking devices of the prior art.
  • the locking device enables the battery clamp on which it is mounted to be locked by acting from above, for example using a socket spanner, on the threaded nut associated with the rod of the pressing element.
  • a further advantage of the locking device according to the invention resides in the fact that it is suitable for use with commercially available battery clamps.
  • the head 30 of the pin 29 may have a surface which is inclined, relative to the directions X-X and Y-Y, and in contact with a corresponding inclined surface of the pressing element.
  • the pressing element would constitute a wedge movable only in the direction Y-Y.
  • the pressing element may have an inclined surface directly in contact with a corresponding inclined surface of a free end of the clamp.
  • the above-mentioned means for the angular transmission of the movement of the pressing element may be in the form of a lever system or another functionally equivalent system.

Landscapes

  • Clamps And Clips (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Multi-Process Working Machines And Systems (AREA)
EP98830483A 1998-08-05 1998-08-05 Anordnung zum Verriegeln einer Batterieklemme Withdrawn EP0978901A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP98830483A EP0978901A1 (de) 1998-08-05 1998-08-05 Anordnung zum Verriegeln einer Batterieklemme
IT1999MI001718A IT1313316B1 (it) 1998-08-05 1999-07-30 Dispositivo di serraggio di un morsetto di batteria.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98830483A EP0978901A1 (de) 1998-08-05 1998-08-05 Anordnung zum Verriegeln einer Batterieklemme

Publications (1)

Publication Number Publication Date
EP0978901A1 true EP0978901A1 (de) 2000-02-09

Family

ID=8236747

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98830483A Withdrawn EP0978901A1 (de) 1998-08-05 1998-08-05 Anordnung zum Verriegeln einer Batterieklemme

Country Status (2)

Country Link
EP (1) EP0978901A1 (de)
IT (1) IT1313316B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498987A1 (de) * 2003-07-14 2005-01-19 Meccanotecnica Codognese S.p.A. Schnellspannende Batterieklemme

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0809327A2 (de) * 1996-05-20 1997-11-26 MECCANOTECNICA CODOGNESE S.p.A. Batterieklemme für ein Kraftfahrzeug
DE19636685C1 (de) * 1996-09-10 1998-01-08 Friedrich Ing Grad Welcker Kabelanschlußklemme für Bleiakkumulatoren

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0809327A2 (de) * 1996-05-20 1997-11-26 MECCANOTECNICA CODOGNESE S.p.A. Batterieklemme für ein Kraftfahrzeug
DE19636685C1 (de) * 1996-09-10 1998-01-08 Friedrich Ing Grad Welcker Kabelanschlußklemme für Bleiakkumulatoren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1498987A1 (de) * 2003-07-14 2005-01-19 Meccanotecnica Codognese S.p.A. Schnellspannende Batterieklemme

Also Published As

Publication number Publication date
ITMI991718A1 (it) 2001-01-30
IT1313316B1 (it) 2002-07-17
ITMI991718A0 (it) 1999-07-30

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