US3330022A - Tool for making electrical connections for a series of terminal posts - Google Patents

Tool for making electrical connections for a series of terminal posts Download PDF

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Publication number
US3330022A
US3330022A US367479A US36747964A US3330022A US 3330022 A US3330022 A US 3330022A US 367479 A US367479 A US 367479A US 36747964 A US36747964 A US 36747964A US 3330022 A US3330022 A US 3330022A
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US
United States
Prior art keywords
clip
post
wire
mandrel
terminal
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.)
Expired - Lifetime
Application number
US367479A
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English (en)
Inventor
Cobaugh Robert Franklin
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.)
TE Connectivity Corp
Original Assignee
AMP Inc
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 AMP Inc filed Critical AMP Inc
Priority to US367479A priority Critical patent/US3330022A/en
Priority to DE19651465168 priority patent/DE1465168A1/de
Priority to NL6505874A priority patent/NL6505874A/xx
Priority to GB19963/65A priority patent/GB1066395A/en
Priority to US640974A priority patent/US3471916A/en
Application granted granted Critical
Publication of US3330022A publication Critical patent/US3330022A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • H01R43/027—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for connecting conductors by clips
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5313—Means to assemble electrical device
    • Y10T29/532—Conductor
    • Y10T29/53209—Terminal or connector
    • Y10T29/53213—Assembled to wire-type conductor
    • Y10T29/53222—Means comprising hand-manipulatable implement
    • Y10T29/5323—Fastening by elastic joining
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53526—Running-length work

Definitions

  • the present invention utilizes the general principles of the invention of Patent N 0. 3,219,918 and is particularly directed to the problem of connecting a single conductor serially to three or more terminal posts.
  • a further object is to provide an improved tool for forming series connections for a plurality of terminal posts.
  • end portion of a wire extending from a substantially endless source is electrically connected to a first post in a series of posts by positioning a Wire with its axis extending transversely of the axis of the post and moving an opensided terminal clip telescopically onto the post in a manner such that the clip drags the wire onto the post and holds it against the surface thereof.
  • the end of the wire will emerge from the end of the clip which is proximate to the base of the post.
  • the wire will extend upwardly from the base of the post and emerge from confined relationship at the remote end of the clip and extend to the endless source.
  • the wire is then, without being cut, positioned over the second and each subsequent post in the series and a terminal clip is moved past the wire and onto the second post and each subsequent post.
  • the wire will extend from the remote end of the first terminal clip on the first terminal post to the proximate end, of the clip on the second terminal post and will be confined against the second terminal post by this second clip.
  • the wire will emerge from the remote end of the second terminal clip and extend to the proximate end of a clip on the the third terminal post of the series. In this manner, any desired number of terminal posts can be electrically 3,330,022 Patented July 11, 1967 connected in series without cutting the wire.
  • the present invention contemplates the usage of a clip applying tool comprising a mandrel adapted to support an individual terminal clip and means for moving a clip over the mandrel and onto a post, An opening extending transversely through the mandrel and transversely of the path of movement of the terminal clip is provided for the wire.
  • the arrangement of the mandrel and the opening in the mandrel is such that an intermediate portion of the wire can be connected to an intermediate post of the series during usage as explained above.
  • FIGURE 1 is a perspective view of a preferred form of hand tool for making electrical connections in accordance with the invention
  • FIGURE 2 is a sectional side view of the frontal portion of the hand tool of FIGURE 1 showing the positions of the parts at the beginning of an operating cycle;
  • FIGURE 3 is a View similar to FIGURE 2 but showing the relative positions of the parts at a time midway through the operating cycle of the tool and immediately before a terminal clip is moved onto a terminal post;
  • FIGURE 4 is a view showing an electrical series connection among a series of terminal posts in accordance with the invention.
  • FIGURE 4a is a view similar to FIGURE 4 showing a series connection with wire having a relatively thick insulating sheath thereon;
  • FIGURE 5 is a view similar to FIGURE 2 but showing an alternative form of hand tool in accordance with the invention which is particularly adapted to form electrical connections with wire of the type having a relatively thick insulating sheath thereover;
  • FIGURE 6 is a view similar to FIGURE 5 but showing the positions of the parts at a time midway through the operating cycle of the tool of FIGURE 5;
  • FIGURE 7 is a fragmentary perspective view showing the clip pushing device of a hand tool of the type shown in FIGURES 2 and 5;
  • FIGURE 8 is a sectional view illustrating the manner in which the clip pusher moves over the mandrel of the tool of FIGURE 1 and illustrating the manner in which a strip of terminal clips is fed over the mandrel;
  • FIGURE 9 is a perspective fragmentary view showing the mandrel and the clip pusher of a further embodiment of the invention.
  • FIGURE 10 is a sectional plan view showing the mandrel and clip pusher of FIGURE 9 and illustrating the relative positions of the parts when the clip is being pushed over the mandrel;
  • FIGURE 11 is a perspective view of a terminal clip of the type used to form electrical connections as shown in FIGURE 4.
  • a typical terminal clip 2 for making an electrical connection in accordance with the principles of Patent No. 3,239,918, comprises a web portion 4 having sidewalls 6 extending from its marginal edges, these sidewalls being reversely curled as shown at 8 towards each other and towards the underside of the web.
  • a pair of ears 10 are struck up from the leading end of the clip and function as a strain relief and wire supporting means for the emergent wire as indicated in FIGURE 4.
  • the internal surface of the web 4 is provided with transversely extending grooves which define spaced-apart ribs 13 as shown in FIGURE 2.
  • FIGURE 4 shows a series connection among a plurality of terminal posts 14a, 14b, 14c, 14d in accordance with the principles of the present invention.
  • the wire 12 in FIGURE 4 is provided with a thin film of insulating material, such as polyvinyl formal resin or other suitable polymeric-material which is removed in the vicinity of each of the electrical connections in'a manner described below.
  • FIGURES 13 show a manually actuated hand tool for forming an electrical connection in accordance with the present invention, this tool being in most respects similar to the hand tools disclosed and claimed in copending application, Ser. No. 299,377, now Patent No. 3,249,992, filed August 1, 1963, by Robert A. Long, for
  • the tool 20 comprises a sheet metal outer housing 22 and a sheet metal inner housing 24, these housing members having depending handle portions 26, 28 which form a pistol-type grip.
  • a rectangular frame member (not shown) which is contained within the inner housing 24 has a channel-shaped projection 30 which extends beyond the forward end of the housing members 22, 24 and a block 32 is contained between and secured to the depending sidewalls of the extension 30.
  • a clip pusher (FIG- URE 7) 34 is slidably mounted relative to the frame extension 30 and comprises an upper side 36 which is disposed against the underside of the extension 30 and depending sidewalls 38. These sidewalls have inwardly directed flanges 40 at their lower end so that a strip of end-to-end connected terminal clips 2 can be contained within the clip pusher with the curled edges of the clips resting on the flanges of the sidewalls as shown in FIG- URE 8.
  • the head 50 extends rearwardly of the tool beyond the openposed in a blind hole in the block 32 and being upwardly biased by means of a coil spring 61.
  • the trailing stop 62 extends through an oversized opening 70 in a pivoted lever 64 and is also received ina hole in the block 32. This trailing stop is upwardly biasedby a coil spring 63. ,7
  • the lever 64 is contained in an elongated channel or slot 66 in the block 32 and is pivoted to the block intermediate its ends as shown at 68.
  • the stops '60, 62 have projections 74, 76 on their upper ends which extend into the path followed by the strip of clips during relative leftward movement from the position of FIGURE 2.
  • the projection 74 on the stop 60 has a rightwardly facing surface as viewed in FIGURE 2 which normally bears against the leading end of the leading clip 2 while the trailing stop 62 has a rightwardly facing sloping surface which. normally bears against the'next adjacent clip of the strip.
  • the parts will be in the relative positions of FIGURE 2 with the leading clip 2' of the strip disposed in the leading end portion of the clip pusher and with the trailing side of this leading clip engaged by the inwardly turned ends 42 of a pair of arms 41.
  • These arms 41 are integral with, and extend from, a yoke member 43 mounted in a recess of the clip pusher as described more ⁇ fully in the'above-identified Patent No.
  • a mandrel block generally indicated at 46 is clamped by means of a fastener 48 between 'a pair of spaced-apart side extensions 44 of the block 32.
  • a generally T-shaped mandrel is provided on the upper surface of the mandrel block 46, this mandrel comprising a rib portion 52 and a head portion 50 (see FIGURES), the width of the head 'beingslightly less than the distance between the opposed internal surfaces of the sidewalls 6 of theindividual ter-. minal clips so that the leading clip can be moved from the position of FIGURE 2 relatively leftwardly over the mandrel and subsequently onto a terminal post.
  • An opening 54 extends through the head and rib portions'of the mandrel, and rearwardly through the mandrel block. This. opening is in alignment with an opening 55 in the "block 32 and has a diameter sufiicien-t to permit relative movement therethrough of the wire 12 as shown in FIGURE 2.
  • a relatively shallow groove 56 is provided on the upper surface of the head 50 and slopes upwardly from the upper end of the opening 54 to the upper surface of the mandrel'head.
  • This trailing stop 62 can thus be biased downwardly against the force of the spring 63 upon relative leftward movement of the strip of clips.
  • this stop is independent of the lever 64.
  • the forward stop 60 is connectedjto the letf-hand end of thelever 64 as shown at 72'so that upon counterclockwise swinging of the lever about its pivotal axis 68, this leading stop is lowered as explained below.
  • Lever 64 has a depending arm on its right-hand side as viewed in FIGURE 2 with a sloping cam surface 81 at its lower end. This cam surface is engaged by a pin 78' which extends between the sides of the forward end of the outer housing 22 so that upon relativeleftward movement of the pin 78 with respect to the surface 81 the lever 64 is swung through a slight arc in a counterclockwise direction thereby to lower the leading stop 60 and to permit the leading clip 2' to move past the projection 74 on the leading stop.
  • the stop 60 is biased by the spring 61 againstthe underside of the leading clip 2' and moves upwardly against the leading end of the next adjacent clip after the leading clip has passed the stop 74. Such upward movement of the projection 74 is permitted since the pin 78 will have passed the depending arm 80 of the leverby the time the leading clip moves past the projection 74.
  • a scraper 82 is provided in the mandrel adjacent to the forward end thereof. This scraper is mounted in an opening extending through the mandrel head portion 50 and has a sloping side 84 which faces the wire when the parts are in the positions of FIGURE 2.
  • An enlarged lower end 86 of the scraper 82 is contained within a counterbored openingin the mandrel in which a 2 spring 88 is contained'for biasing the scraping tool upwardly. It will be apparent that the edge of this tool will be pressed against the underside of the wire during relative movement of the wire thereover. It should be added that the ribs 11 on the internal surface of the web of the clip are pressed into the wire while the clip moves over the mandrel and tend to lock the clip to the wire thereby preventing relative movement of the wire with respect to the clip while the clip is being dragged over the edge of a 501 of FIGURE 1 a 1 b pin 92 extending from the outer housing member 22 at the rearward end thereof.
  • the leading clip then moves against the upwardly projecting end portion of the wire 12 and drags this portion of the wire over the upper surface of the head 50 of the mandrel, through the groove 56, and across the upwardly biased edge of the scraping tool 82 thereby to scrape away a portion of the insulating film on the underside of the wire.
  • the transversely extending ribs on the underside of the web function to prevent relative movement between the wire and clip as explained above.
  • the operator then positions the tool in alignment with the terminal post 14a with the upper end of this post disposed against the shoulder formed by the end 51 of the mandrel head.
  • the operator then pushes the tool relatively against the post to bring about the further relative movement of the clip pusher with respect to the mandrel, the block 32 and the other parts of the tool as explained in Patent No. 3,249,922.
  • the leading clip 2 is moved relatively downwardly over the post 14a to the position shown in FIGURE 4.
  • a portion of the wire is pressed against the edge of the scraping tool 82 by the clip and a short length of wire is stripped of the film of insulation so that the remaining portion of the wire which extends between the posts retains its insulating film.
  • the end portion of the wire 14 enters confined relationship between the clip 2 and the post 14a at the proximate end 16 of the clip and emerges from confined relationship at the remote end 18 of the clip.
  • the intermediate portion of the wire enters confined relationship at the proximate end of the post and similarly emerges from confined relationship at the remote end of the post.
  • the end portion of the wire emerges from confined relationship at the remote end 18 of the clip which is telescoped onto the post 14d.
  • a salient advantage of the invention is that each post 14a-14d of the series of posts to be connected is connected to the same length of wire with the insulation stripped from the wire only in the immediate areas of electrical contact with the several posts.
  • the electrical connections with the posts 14b, 140 thus constitute tap connections with the through wire 12. From the standpoint of the quality of electrical connections made with the several posts, the invention thus permits the achievement of the series connection with a reduced number of interfaces as compared with previously known connecting methods; in other words, the single length of Wire which connects the several posts of the series in FIGURE 4 extends uninterruptedly from the posts 14:: to 14d with only two individual interfaces separating, from an electrical standpoint, the post 14a from any other one of the posts in the series.
  • the invention reduces substantially the number of clips required for this group of series connections in that only one terminal clip is required on each of the terminal posts 14a-14d even though the intermediate posts 14b, 140, are each connected to two adjacent terminal posts in the series; for example, the post 1412 is connected to the post 14c and the post 14a.
  • the manipulative steps are also substantially reduced in that it is only necessary to go through the cycle of operating the tool once for each of the posts 14Z14d.
  • FIGURES 5 and 6 The principles of the invention are not limited to usage in instances where film insulated wires of the types disclosed in the embodiment of FIGURE 1 are involved. If it is desired to make a series of electrical connections among terminal posts with wire having the more conventional relatively thick insulating sheath such as a vinyl sheath thereon, an embodiment of the invention of the type shown in FIGURES 5 and 6 can be employed. In these figures, the wire 94 has a relatively thick insulating sheath thereover which is removed at suitable intervals to expose the metallic core of the wire.
  • the tool shown in FIGURES 5 and 6 is substantially similar to the tool of FIGURES l-3 so that a detailed description of this modified form of tool in accordance with the invention is not deemed to be necessary.
  • the various parts of the tool of FIGURE 5 are identified with the same reference numerals, differentiated by prime marks, as those used to describe the embodiment of FIGURE 1.
  • the tool of FIGURE 5 diifers from the tool of FIGURES 1-3 in that the openings 54, 55' are of a diameter sufiiciently large to receive the insulated portion 94 of the wire.
  • the tool of FIGURE 5 also differs from the embodiment of FIGURE 1 in that the scraping tool 82 is not provided in the mandrel block 46 since it is not necessary to scrape wire of this type.
  • the operation of the tool of FIGURES 5 and 6 is substantially similar to the operation of the previously describedembodiment in that the leading clip 2' is pushed against a stripped portion 96 of the wire and drags this stripped portion over the mandrel to the position of FIGURE 6.
  • the tool is then positioned against the end of a terminal post and pressed axially towards the post to cause further relative movement of the clip pusher 34 whereby the leading clip is moved onto the post and clamps the stripped portion of the wire against a surface of the post as described before.
  • terminal clip 2 having an insulation supporting ear 10 at each end when a series connection of the type shown in FIGURE 4a among a plurality of posts is being made with wire having a relatively thick insulating sheath.
  • the provision of an car at each end of the clip provides for insulation supporting and strain relief means wherever the wire enters or leaves a terminal clip as disclosed in my copending application, Serial No. 338,663, filed January 20, 1964.
  • FIGURES 9 and 10 show a further embodiment of the invention which is particularly intended for wire having a relatively thick insulating sheath thereover.
  • the mandrel block 46" in this instance has a slot 54" opening into the side of the mandrel into which the insulated wire is placed, this slot 54" serving substantially the same function as the opening 54 of the embodiment of FIGURE 1, that 7 is, to receive the intermediate portion of the wire which is to be connected to the post.
  • the clip pusher 34" has an enlarged end 98 in which the leading clip is nested while it is being pushed over the mandrel, past the wire and onto the post. It should be explained that the strip of clips is not fed axially within the clip pusher in the embodiment of FIGURES 9 and 10 but, are rather transferred laterally from beneath the clip pusher into a position in alignment with the path of reciprocation of the clip pusher. Tools of this general type are disclosed in my copending application, Serial No. 302,896, now Patent No. 3,186,072, filed August 19, 1963, for Apparatus For Making Electrical Connections.
  • the sidewall 100 of the clip pusher is cutaway as shown at 102 and the underside of the top wall is cut away to form a surface 104 which extends diagonally from the side 100 to the side 106 and toward the front 98 of the clip pusher.
  • the stripped portion of the wire is disposed in the slot 54" of the mandrel and the clip pusher is actuated to drive a clip leftwardly in FIGURE 9 over the mandrel, against the wire, beyond the mandrel and onto a post.
  • FIGURE 9 is particularly advantageous where the insulating sheath on the wire is relatively thick and where it is impractical to provide a sufficiently large opening 54' in the embodiment of FIGURE 3 to accommodate the wire.
  • a device for making clip-type electrical connections comprising mandrel means and clip moving means for moving a terminal clip over said mandrel means and onto a terminal post
  • the improvement comprising: wire guide means extending entirely through said mandrel intermediate the ends thereof, whereby wire from a substantially endless source can be positioned in said wire guide means and the end of said wire can 'be con nected to a first terminal post, and wire can then be fed' through said guide means and an intermediate portion of said wire can be connected to a second terminal post upon moving a second clip over said mandreland onto 7 said second terminal post.
  • a device for making clip-type electrical connecttions comprising mandrel means and clip moving means for moving a terminal clip over said mandrel means and onto a terminal post, the improvement comprising: an opening extending transversely through said 4.
  • said endless source comprises a reel of wire.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Processing Of Terminals (AREA)
US367479A 1964-05-14 1964-05-14 Tool for making electrical connections for a series of terminal posts Expired - Lifetime US3330022A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US367479A US3330022A (en) 1964-05-14 1964-05-14 Tool for making electrical connections for a series of terminal posts
DE19651465168 DE1465168A1 (de) 1964-05-14 1965-05-07 Verfahren zum Anschliessen eines Anschlussdrahtes an mehrere Anschlussbolzen und zugehoeriges Werkzeug
NL6505874A NL6505874A (xx) 1964-05-14 1965-05-10
GB19963/65A GB1066395A (en) 1964-05-14 1965-05-12 Improvements in or relating to series electrical connections
US640974A US3471916A (en) 1964-05-14 1967-05-24 Tool for making electrical connections having insulation scraping means

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US367479A US3330022A (en) 1964-05-14 1964-05-14 Tool for making electrical connections for a series of terminal posts

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US3330022A true US3330022A (en) 1967-07-11

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US367479A Expired - Lifetime US3330022A (en) 1964-05-14 1964-05-14 Tool for making electrical connections for a series of terminal posts

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US (1) US3330022A (xx)
DE (1) DE1465168A1 (xx)
GB (1) GB1066395A (xx)
NL (1) NL6505874A (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471916A (en) * 1964-05-14 1969-10-14 Amp Inc Tool for making electrical connections having insulation scraping means
US3479719A (en) * 1967-01-12 1969-11-25 Amp Inc Tool for making clip-type electrical connections
WO2020115535A1 (de) * 2018-12-07 2020-06-11 Schleuniger Holding Ag Kabelbearbeitungsmaschine, vorrichtung und verfahren zum aufspreizen einer hülse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3186078A (en) * 1963-05-21 1965-06-01 Amp Inc Apparatus for making electrical connections
US3186073A (en) * 1964-02-12 1965-06-01 Amp Inc Tool for making electrical connections
US3186077A (en) * 1963-07-09 1965-06-01 Amp Inc Apparatus for wiring panelboards
US3186072A (en) * 1963-08-19 1965-06-01 Amp Inc Apparatus for making electrical connections
US3239918A (en) * 1962-02-05 1966-03-15 Amp Inc Method of making an electrical connection

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239918A (en) * 1962-02-05 1966-03-15 Amp Inc Method of making an electrical connection
US3186078A (en) * 1963-05-21 1965-06-01 Amp Inc Apparatus for making electrical connections
US3186077A (en) * 1963-07-09 1965-06-01 Amp Inc Apparatus for wiring panelboards
US3186072A (en) * 1963-08-19 1965-06-01 Amp Inc Apparatus for making electrical connections
US3186073A (en) * 1964-02-12 1965-06-01 Amp Inc Tool for making electrical connections

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3471916A (en) * 1964-05-14 1969-10-14 Amp Inc Tool for making electrical connections having insulation scraping means
US3479719A (en) * 1967-01-12 1969-11-25 Amp Inc Tool for making clip-type electrical connections
WO2020115535A1 (de) * 2018-12-07 2020-06-11 Schleuniger Holding Ag Kabelbearbeitungsmaschine, vorrichtung und verfahren zum aufspreizen einer hülse

Also Published As

Publication number Publication date
GB1066395A (en) 1967-04-26
NL6505874A (xx) 1965-11-15
DE1465168A1 (de) 1969-03-06

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