Header pin pre-load apparatus

Information

  • Patent Grant
  • 6216338
  • Patent Number
    6,216,338
  • Date Filed
    Tuesday, November 25, 1997
    27 years ago
  • Date Issued
    Tuesday, April 17, 2001
    23 years ago
Abstract
The present invention provides a pin deforming apparatus for deforming a normally straight pin for use in an electrical connection, wherein the apparatus includes a frame, a die coupled to the frame and an operating member coupled to the frame and die, whereby moving the operating member moves the die into contact with the pin sufficiently to bend at least a part of it. The invention encompasses a method of deforming a pin, as well as a method of making an electrical connection using a deformed pin.
Description




BACKGROUND




1. Field of the Invention




The present invention relates to electrical connections and, more particularly, to an apparatus for selectively deflecting a pin for use in an electrical connection, and an electrical connection incorporating a deflected pin.




2. Description of Related Art




Making electrical connections secure and durable, i.e., resistant to mechanical uncoupling (and resultant electrical uncoupling), has been a problem for as long as electrical connections have been made. Joined plug and receptacle elements almost always seem to tend to loosen and separate when exposed to vibration, flexing, pulling, or other mechanical disturbances.




A fairly typical electrical connection with multi-pin/receptacle connectors is disclosed in U.S. Pat. No. 4,072,390 (Fox). The connector is for ribbon cable terminals and has two spaced parallel rows of conductor pins which are embedded in a block of insulating material. Each pin has a first end portion and a second end portion, the axes of which are in spaced parallel relationship, and a bent intermediate portion. The bent intermediate portion is embedded within a block of insulating material. Pin/socket connectors of the general type shown in the Fox patent have been used for a long time, and in many industries. They have proliferated in recent years with the rapid growth in the computer, video, audio and communications industries. Despite the increased friction due to the multiple pins and sockets, this type of connection still has a tendency to uncouple, particularly when the cables are long. The Fox patent makes no suggestion about how to alleviate this problem and, in particular, its bent intermediate portions do not address the problem. Further, although Fox makes a reference to dies being used to fashion pins (column 1, line 28-30), no specific pin bending apparatus or method is suggested.




There have been many attempts to make the connection between connector elements more secure. People have tried hasp-like latching connectors and screws or threaded collars that bridge between two connector components, but these are expensive, cumbersome and may interfere with easily joining the connectors. In addition, they complicate and slow disconnection because they require unlatching or unscrewing before the two connector components can be separated. Adhesives have been used to join male and female connector elements. While adhesively joined connectors may stay joined, they cannot be easily selectively disconnected once the connection is made.




As evidenced by U.S. Pat. No. 5,427,552 (Zielinski et al.) spring elements have been used to make electrical connections more secure. Zielinski et al. disclose an electrical terminal for use in automobiles where a female terminal uses a contact spring to urge an inserted male contact blade into contact with a contact floor. Spring loaded female connectors of the general type represented by the Zielinski et al. patent require a spring member, thereby increasing the complexity of a connector. The Zielinski et al. patent also discloses a method of making the subject female terminal including, with reference to

FIG. 8

, bending the terminal by using a die to form a socket to receive a male contact; the male contact is not bent.




Two other methods for creating a secure electrical connection are disclosed in U.S. Pat. No. 4,427,252 (Lee et al.) and U.S. Pat. No. 4,784,619 (Blanchet). The Lee et al. patent discloses an electrical connector for effecting connection to a banana-type socket, including a connector body having an axially elongated male pin extended from one end. Threaded portions, e.g., a captive, internally threaded collar at the proximate end of the pin, are provided to create a secure connection. The Blanchet electrical connection module provides security by incorporating a locking catch and locking collar arrangement.




While the above-noted patents represent advances in the art of electrical connections, there is a need for a simple, inexpensive way to provide for secure electrical connections, particularly connections formed by connectors of the general type disclosed in the Fox patent and of the type used in linking computer and other electronic equipment.




SUMMARY




In one embodiment, the present invention provides an apparatus and method for deforming a normally straight electrical pin or selected number of pins to provide for a secure electrical connection, for example the connection between a motherboard and cable end connector.




While other embodiments are certainly possible, the present invention is well-suited for connecting intelligent drive electronics (“IDE”) and floppy drive cables, which may disconnect from a motherboard during shipping. The present invention can also be used in small computer system interface (“SCSI”) connections for connecting scanners, hard drives and other equipment. Shipment of such equipment with connectors in place may result in the male and female connector elements becoming loose and separating. Also, after shipping and installation, the weight of longer cables can cause pulling, leading to disconnection. The security of the conventional connection between an IDE connector and headers mounted on a motherboard can vary, depending on the type of contact (e.g., dual or single beam) and contact material used, but even in the case of multi-pin dual beam contacts, there is a tendency for the cables to come uncoupled. The present invention attempts to reduce this tendency conveniently and inexpensively.




The apparatus may include a frame, a die pivotally coupled to the frame and an operating member pivotally coupled to the frame and the die, whereby moving the operating member moves the die into contact with at least one pin to deflect or bend it.




In one embodiment, the support frame is generally vertical, comprising two generally parallel support members, each having a top end and a bottom end. The die is generally flat, rectangular and solid, having two generally parallel flat side surfaces, a first, top edge, a bottom edge generally parallel to the first, top edge, and two generally parallel side edges, each of which is generally perpendicular to the top and bottom edges. The die is supported generally between the two support members, with its two side edges aligned with the support members, and is pivotally coupled to the two support members adjacent to its bottom edge.




The operating member is generally congruent with respect to the die, being generally flat, rectangular and solid. Like the die, it has a top edge, a bottom edge generally parallel to the top edge, two generally parallel side edges, each of which is generally perpendicular to the top and bottom edges, and a mid-portion. The operating member is positioned above the die, between the two support members, with its side edges generally aligned with the support members. Thus, the die and operating member are generally co-planar. The operating member is pivotally coupled to the two support members, the pivotal coupling generally at the mid-portion of the operating member and adjacent to the top end of the support members. It is also coupled to the die generally at the bottom edge of the operating member and the first or top edge of the die, whereby moving the operating member moves the die.




In one embodiment, the present invention includes an adjustable die travel stop carried by the support frame for selectively controlling the movement of the die.




One advantage of the embodiments of the present invention is that equipment/cable and other connections remain more secure during shipping and after installation, even when the cables are very long. Another advantage is that the header or motherboard is not damaged during the operations to implement the embodiments of the inventions, because the deflecting load or force is exerted substantially only on the metal pin connector. While not limited to such uses, the invention is well suited for use on single and dual beam connectors because it enhances connective security by increasing the friction generated by the deflected pin on its receptacle and, further, because it urges the female connector into tighter contact with undeflected pins. The present invention does not require expensive latching connectors on the motherboard, and use of permanent adhesive is avoided. An additional possible advantage is that the deflection in the pin connector is not in the area of single or dual beam contacts, rather, the deflection is spaced away from the base of the pin so the connector, and the connection it is used to form, tend to keep their integrity. The apparatus embodiments of the present invention (which also may be referred to synonymously as a fixture, tool, machine or the like) may be designed to be portable and to occupy a minimum amount of space. The apparatus can be used to retrofit or improve connectors on site, e.g., in the home or office, or during the manufacturing or assembly of electrical components and systems.




The preceding and other features and advantages of the present invention will become more apparent with reference to the drawings, the description of the preferred embodiments and the appended claims.











BRIEF DESCRIPTION OF THE DRAWINGS





FIG. 1

is an elevational view depicting one side, the front and open side, of one embodiment of the present invention.





FIG. 2

is an elevational view, partially in cross-section taken along line


2





2


of

FIG. 1

, depicting another side of the embodiment depicted in FIG.


1


.





FIG. 3

depicts a workpiece, i.e., a motherboard header with pin connections.





FIG. 4

diagrams one operational flow path for one embodiment of the method of the present invention.





FIGS. 5



a-d


diagram making an electrical connection using a male connector element modified by the apparatus and method of one embodiment of the present invention.





FIG. 6

depicts an electrical connection in accordance with one embodiment of the present invention.











DESCRIPTION




1.0 Introduction





FIGS. 1-3

depict the pin deflection apparatus


10


, and features and components thereof.

FIG. 4

depicts, in block diagram form, the operational flow of using the apparatus in one embodiment of the pin deflection method of the present invention.

FIGS. 5



a-d


depict a method of making an electrical connection


12


using a male element


14


modified in accordance with the method described in FIG.


4


.

FIG. 6

depicts another electrical connection


16


made using a header element


18


modified by the method described in FIG.


4


.




With regard to means for fastening, mounting, attaching or connecting the components of the pin bending apparatus


10


, unless specifically described as otherwise, such means are intended to encompass conventional fasteners such as screws, complementary snaps, machined connectors, rivets, nuts and bolts, toggles, pins, and the like. Components may be joined adhesively, by means of deformation, or by sonic, chemical or high temperature welding. Conventional wires or cables of a suitable gauge, and typical electrical connection methods (e.g., splices, clamps, soldering, pins, etching, etc.), may be used to operably couple any electrical inputs, outputs and components of the present invention. Materials for making the components of the apparatus


10


are selected from appropriate materials such as metal, metallic alloys, wood, various plastics and vinyls or the like. Appropriate methods of forming the components may include casting, extruding, molding or machining.




As used herein, the term “pin” is intended to have its customary meaning, i.e., a piece of material, generally in slender elongated form, used for fastening separate articles together. In the electrical field, particularly to make an electrical connection, a body (e.g., a plug) carrying a pin or a plurality of pins may be received in a complementary female receptacle fitting or connector having a generally tubular receptacle or plurality of receptacles complementary to the pin or pins. Examples of such connective components include, but are not limited to, plugs and receptacles used in the computer industry to couple hard drives and other peripheral equipment to motherboards.




As used herein, the term “die” is intended to mean any of various tools or devices for imparting a desired shape, form or finish to a material or object, including those which produce a desired form or shape by application of pressure.




Any references herein to front and back, right and left, top and bottom, upper and lower and horizontal and vertical are intended for convenience of description only, not to limit the present invention or its components to any one positional or spatial orientation.




2.0 One Embodiment of the Apparatus




Referring to

FIG. 1

, the apparatus


10


for deflecting a pin or a number of pins


20


for use in an electrical connection (see, e.g.,

FIG. 6

) comprises a frame


22


, a die


24


pivotally coupled to the frame


22


, and an operating member


26


pivotally coupled to both the frame


22


and the die


24


, whereby moving the operating member


26


moves the die


24


into contact with a pin, or pins,


20


sufficiently to deflect or bend the pin


20


selectively slightly from its unbent, pre-deflection normal or customary straight configuration.




2.1 Frame




In one embodiment, as depicted in FIGS.


1


and/or


2


, the support frame


22


is generally vertically positioned relative to the plane of a motherboard


46


that has a number of pins


20


extending perpendicularly through the motherboard plane. The frame


22


includes two upright support members


32


,


34


, each having a bottom end


36


and a top end


38


. Referring to

FIG. 2

, a rear side wall


30


connects between the uprights


32


,


34


. The frame


22


includes a pin-receiving and supporting base


33


extending between the uprights


32


,


34


at the bottom of the rear wall


30


. The base


33


includes a recess


35


extending substantially for the length of the base


33


for receiving the built-up, pin carrying and supporting straight, double row header portion


44


of a motherboard


46


, and a plurality of pin-receiving bores or holes


37


in a selected pattern for accommodating the pins


20


of a workpiece. In the present embodiment, two parallel, linear arrays or rows of holes


37


are provided, but any suitable array or pattern of holes


37


may be provided. The base


33


and the holes


37


substantially capture and support the motherboard


46


, helping to immobilize it during operation of the apparatus


10


. The base


33


also supports pins


20


which are intended to remain undeflected, and provides a fulcrum edge


39


for facilitating precise deflection of the pins


20


which are intended to be deflected. Generally, the shoulder portion


44


of the motherboard


46


lodges or fits under the base


33


in the recess


35


and between the bottom ends


36


of the uprights


32


,


34


. Although the recess


35


securely holds the motherboard


46


for deflection operations, each upright


32


,


34


may be provided with an optional recess


40


(shown in phantom in

FIG. 1

) for receiving the ends of the shoulder


44


of the motherboard


46


. The two recesses


40


are substantially identical, and are shaped and aligned with each other to supplement the recess


35


by accommodating and gripping the ends of the shoulder


44


of the motherboard


46


.




2.2 Die




Referring to FIGS.


1


and/or


2


, the die


24


is generally flat, having a first, upper edge


50


, a second lower, working edge


52


generally parallel to the first edge, and two generally parallel side edges


54


,


56


. Each side edge


54


,


56


is generally perpendicular to the first and second edges


50


,


52


. The die


24


is supported generally between the two uprights


32


,


34


, and pivotally coupled to the uprights


32


,


34


generally adjacent to the second or working edge


52


of the die. The pivotal connection


58


may be effected in a variety of ways. A hinge-like connection is used in one embodiment and is formed by a bore


60


in each upright


32


,


34


and in the lower edge


52


of the die


24


, with a cylindrical, elongated pin


62


therethrough. At or adjacent to the first, upper edge


50


, the die


24


is provided with a second bore or channel


64


which may be formed by a curled portion of the die


24


or by a generally tubular member attached at the edge


50


of the die


24


.




The die


24


includes a relieved area


66


generally at the middle portion of the lower edge


52


. The relieved area, specifically the length thereof along the lower edge


52


, allows for a selected number of pins


20


to be deflected, because pins in the relieved area are not engaged. It should be appreciated that the relieved area


66


may be varied in size and location to accommodate fewer or more pins


20


, or a selected pattern of pins


20


. In particular, the relieved area


66


may comprise two separate sections, so that pins in the middle of the die


24


as well as at the ends of the die


24


are engaged.




2.3 Operating Member




The operating member


26


of the present invention is coupled to the die


24


by a hinge-like arrangement


70


with a pin


65


contained within bores


64


, substantially similar to that at the lower, working edge


52


of the die


24


. The operating member


26


is generally flat, and generally congruent with respect to the die


24


. It has a first, upper edge


72


, a second, lower edge


74


generally parallel to the first edge


72


but having two hinge tabs


75


, two parallel side edges


76


,


78


generally perpendicular to the first and second edges


72


,


74


, and a relieved central portion


80


. The relieved central portion


80


is provided for receiving the hand or fingers of a user. In a fashion generally similar to the die


24


, the operating member


26


is supported by and positioned generally between the uprights


32


,


34


. The operating member


26


is pivotally coupled between the two upright support members


32


,


34


, the pivotal coupling


82


being generally at the middle of the operating member


26


and adjacent to the upper, free ends


38


of the uprights


32


,


34


. The pinned rotatable connection


82


between the frame


22


and the operating member


26


is substantially similar to the pinned rotatable connection


58


at the lower end of the frame


22


and die


24


, i.e., comprising a bore


84


and pin


86


. The operating member


26


and die


24


are operably coupled along their respective lower edge


74


(with hinge tabs


75


) and upper edge


50


by the hinge-like connection


70


. The top corners


88


of the operating member


26


may be rounded or cut at an angle as shown in

FIGS. 1 and 2

.




From the preceding description of the coupling arrangement between the frame


22


, the die


24


and the operating lever


26


, it should be appreciated that when the operating member


26


is moved in the direction of the arrow “A” in

FIG. 2

, the upper portion of the die


24


moves in the opposite direction so that the operating member


26


and die


24


become non-co-planar. Because the lower working edge


52


of the die


24


is fixed relative to the frame


22


, the working surface


90


of the die, a region closely adjacent to the bottom edge


52


, engages the pins


20


of the motherboard


46


, such as the dual beam board


46


depicted in FIG.


3


. The engaged pins are then deflected, with the deflection starting at the point where the pins


20


extend above the edge


41


of the base of the frame


22


.




2.4 Adjustable Stop




The adjustable stop


92


is carried on an upper region


94


of the rear side wall


30


of the frame


22


and comprises a stop head


96


, a shaft


98


and a nut


100


. The shaft


98


has a threaded portion


102


at the end opposite the stop head


96


. When the stop


92


is mounted as shown in

FIG. 2

, the shaft


98


extends transversely through an aperture


104


in the rear side wall


30


of die


24


. The position of the shaft


98


relative to the nut


100


(which may be fixed to the rear side wall


30


) can be varied by turning it clockwise or counterclockwise to thereby limit or control the distance the upper portion


106


of the die


24


can travel. Preferably, the travel should be adjusted so that a pin


20


or a number of pins


20


can be bent at an angle of approximately 2-8 degrees. For the connection of

FIGS. 5



a-d


, a bend angle of approximately 5 degrees or less is preferred.




3.0 Electrical Connection





FIG. 6

depicts a representative IDE cable end/motherboard connection incorporating a pin


20


or number of pins


20


′ bent by the apparatus


10


in accordance with the method of the present invention.




3.1 Female Connector




Referring to

FIG. 6

, the female or receptacle electrical connector


110


is typically a cable mounted end unit including an appropriate number of tubular apertures or sockets


112


generally complementary to the position and number of pin connectors


20


on the header of the motherboard


46


(shown in FIGS.


1


and


2


).




3.2 Male Connector




The male connector


18


depicted in

FIG. 6

, e.g., a motherboard or straight dual row header, comprises a generally non-conductive insulating shoulder body


44


having a plurality of pins


20


extending therethrough. The pins


20


are in a selected arrangement and number for being mounted to the motherboard


46


and connected to the female connector


110


. Each pin


20


has a base


21


, a tip


23


and a pin length extending therebetween. Prior to modification by the apparatus


10


and method in accordance with the invention, typical pins


20


have a generally straight pre-deflection configuration including a normal, straight generally central longitudinal axis. The electrical connection


16


depicted in

FIG. 6

incorporates at least one pin


20


′ bent in accordance with the present invention. The deflection or bending of the bent pin


20


′ is lateral, i.e., generally transverse or perpendicular to the normal longitudinal axis of the pin


20


′. Referring back to

FIG. 1

, it should be clear from the configuration of the lower working edge


52


of the die


24


that only a selected row of pins


20


or selected pins


20


of a row will be deflected. When the bent or deflected pins


20


′ are inserted into the connector


110


as shown in

FIG. 6

, the pin tip


23


and/or a portion of the length of the pin


20


′ near its tip


23


contact the inside wall of the socket


112


. This produces a load or force which is asymmetrical within the socket


112


and acts to resist uncoupling by increasing the friction between the bent pin


20


′ and receiving socket


112


. There is also a spring force between the deflected and undeflected pins that is overcome when the pins


20


are inserted, but also increases frictional forces in the receiving socket


112


. These pre-load forces and resulting friction help ensure that the coupling between the male and female connectors is maintained despite vibration and flexing.




4.0 In Use




With reference to

FIG. 4

, which depicts the operational flow or steps in one method embodiment, in using the apparatus or tool


10


, a die


24


is selected, block


400


, according to the number of pins


20


to be bent, i.e., by the size or shape of the relieved region


66


at the working surface


90


of the die


24


. The selected die


24


is installed, block


410


, in the frame


22


by aligning it with the uprights


32


,


34


and pinning it in place by sliding the hinge pin


62


into the channel


60


. The operating lever


26


is similarly pinned in place and may be connected to the top of the die


24


. As represented at block


420


, the base


33


of the tool


10


is placed over a strip header


44


as shown in

FIGS. 1 and 2

with the pins to be deflected to the front of the apparatus


10


generally adjacent to and along the fulcrum edge


39


. To perform pin deflection, the tool operating member


26


may be moved or rotated, block


430


, as shown in

FIG. 2

at arrow “A”. Doing so brings the working surface


90


of the die


24


into contact with the selected pins


20


adjacent to the tip


23


of the pins


20


, bending and pre-loading them, block


440


. The deflection takes place at a place along the length of the pin


20


, spaced away from the base


21


or tip


23


. The tool


10


may be removed, block


450


, and set aside, the connector then being ready to form a connection, block


460


.




FIGS.


4


and

FIGS. 5



a-d


depict the forming of an electrical connection


120


using a male connector


122


with a pin


20


′ (or pins, only one of which is shown) modified in accordance with the present invention. Referring to block


470


of FIG.


4


and

FIG. 5



a


, the female cable connector


124


is placed above the pins (or pin set or sets)


20


′ and


20


″ (the straight or undeflected pins) of the male connector


122


at a slight angle whereby the complementary generally tubular socket (shown in phantom at


128


in

FIG. 5



a


) lines up with the deflected portion of the bent pin


20


′. Preferably the deflection angle will be at about 5 degrees or less from vertical (i.e., with respect to the normal or pre-deflection longitudinal axis of the pin). Referring to

FIG. 4

, block


480


, and

FIGS. 5



b


and


c


, the pin


20


′ is engaged and the connector


124


is then rotated to a vertical position to bring the appropriate socket


130


into alignment with the unbent pin


20


.″ The connector


124


then can be partially, the fully engaged as shown

FIG. 4

, block


490


and

FIGS. 5



c


and


5




d


, respectively. The bent pin


20


′ (or pins) produce a force tending to resist withdrawal of the receptacle


124


from the male connector


122


by contacting the inside of the tubular socket


128


. Frictional force tending to resist uncoupling is also increased because the bent pin


20


′ tends to urge the connector


124


, specifically, the inside wall of the receptacle


130


, more tightly against pin


20


″.




5.0 Other Embodiments




Although the pin deflection apparatus


10


is well-suited for use on multiple pin connectors such as those commonly used in the computer industry, the pin deflection apparatus


10


could be used to modify connectors having any number of pins, and it could be useful in diverse fields, e.g., communications, manufacturing, recording, video, etc., in which a secure pin/receptacle-type connection or coupling would be desirable.




Square or round pins may be treated by the apparatus


10


in accordance with the method of the present invention. The size of the relieved area


66


(shown in

FIG. 1

) may be varied to bend a selected number of pins


20


, thereby varying the load or force the bent pins produce in a connection. Similarly, the angle and location at which the pins


20


may be deflected or bent may be varied as long as the pins are not weakened and joining the male/female connectors is not adversely affected. The frame


22


may comprise only the two uprights


32


,


34


, general stability, rigidity and resistance to forces generated by operation being provided by the three transversely extending hinge pins. The rear wall


30


may be omitted, in which case the die stop


92


may be carried on a cross-member (not shown) spanning the distance between and attached to the uprights


32


,


34


. Also, the rear wall


30


and base


33


may be formed as a unit or may be connected to each other. The die


24


may be reconfigured by eliminating the extended pin


62


, replacing it with short pins extending from the die


24


into the uprights


32


,


34


, then forming a slot (not shown) cut into the bottom edge


52


of the die


24


. This slot (or set of slots selectively placed) receives the row or set of pins to be deflected, in which case, the pins to be deflected would be received in the die edge


52


prior to being deflected.




The generally flat rectangular operating member


26


may be shaped more like a typical lever, i.e., having two ends and a length, one of the ends being a free, handle end and the other attached to the die


24


. The pivotal connections, e.g., connections


58


,


82


, among operational components may be made by piano type hinges, living hinges and the like. The apparatus


10


may be embodied as a hand-held, hand-operated workstation tool for use on a selected set of pins for custom board or connector designs, or it may be embodied as a pin bending portion of an automated, continuous manufacturing process.




Although a description of specific embodiments has been presented, various changes, including those mentioned above, could be made without deviating from the spirit of the present invention. It is desired, therefore, that reference be made to the appended claims rather than to the foregoing description to indicate the scope of the invention.



Claims
  • 1. Apparatus for deflecting a pin for use in an electrical connection, comprising:a frame; a die pivotally coupled to the frame; an operating member pivotally coupled to the frame and operably coupled to the die, whereby moving the operating member moves the die to plastically deform the pin said pin being mounted in an electrical connector.
  • 2. The apparatus according to claim 1, wherein the die is generally planar.
  • 3. The apparatus according to claim 2, wherein the operating member is generally planar, and is generally co-planar with the die.
  • 4. The apparatus according to claim 1, wherein the die is adapted to deflect a portion of a selected plurality of pins.
  • 5. The apparatus according to claim 4, wherein the die comprises a working surface and a relieved region adjacent to the working surface, said relieved region accommodating a number pins, whereby pins accommodated in the relieved region are not deflected.
  • 6. The apparatus according to claim 1, wherein the frame includes a portion for accommodating a plurality of pins.
  • 7. The apparatus according to claim 6, wherein the plurality of pins is associated with a motherboard header.
  • 8. The apparatus according to claim 1, further comprising an adjustable stop for selectively controlling the movement of the die.
  • 9. The apparatus according to claim 1, wherein the pin before deflection is substantially straight along a longitudinal axis and the deflected portion is deflected between 2° and 8° from that longitudinal axis.
  • 10. The apparatus according to claim 1, wherein the pin before deflection is substantially straight along a longitudinal axis and the deflected portion is deflected substantially 5° from that longitudinal axis.
  • 11. The apparatus according to claim 4, wherein the plurality of pins is arranged in at least one row and less than all the pins in the at least one row are deflected.
  • 12. The apparatus according to claim 4, wherein the plurality of pins is arranged in at least two generally parallel rows and pins in only one row are deflected.
  • 13. A pin bending apparatus for bending a pin mounted in an electrical connector for use in an electrical connection, comprising:a substantially planar support frame comprising two support members each having an upper end and a lower end, said lower end adapted to engage said electrical connector; a substantially planar die having a first edge, a second edge and two side edges, said die supported generally between the two support members, and pivotally coupled to the two support members adjacent to the second edge of the die; an operating member having a first edge, a second edge, two parallel side edges and a mid-portion, said operating member pivotally coupled to the two support members and to the die, whereby moving the operating member moves the die to engage and plastically deform a portion of a pin, said pin being mounted in the electrical connector; and an adjustable stop carried by the support frame for selectively controlling the movement of the die.
  • 14. The pin bending apparatus according to claim 13, wherein the support frame includes a portion for accommodating a plurality of pins associated with a motherboard header.
  • 15. The pin bending apparatus according to claim 13, wherein the second edge of the die is adapted to bend a number of pins associated with a multi-pin connector.
  • 16. The pin bending apparatus according to claim 13, wherein the operating member is generally co-planar with the die.
  • 17. The apparatus according to claim 13, wherein the pin before bending is substantially straight along a longitudinal axis and the bent portion is bent between 2° and 8° from that longitudinal axis.
  • 18. The apparatus according to claim 13, wherein the pin before bending is substantially straight along a longitudinal axis and the bent portion is bent substantially 5° from that longitudinal axis.
  • 19. The apparatus according to claim 15, wherein the number of pins is arranged in at least one row and less than all the pins in the at least one row are bent.
  • 20. The apparatus according to claim 15, wherein the number of pins is arranged in at least two generally parallel rows and pins in only one row are bent.
US Referenced Citations (21)
Number Name Date Kind
3147779 Brown Sep 1964
3990768 Faber Nov 1976
4072390 Fox Feb 1978
4365398 Chisholm Dec 1982
4372044 Chisholm Feb 1983
4397341 Kent Aug 1983
4398628 Chisholm Aug 1983
4427252 Lee et al. Jan 1984
4476905 Maben Oct 1984
4503610 Resch Mar 1985
4557539 Zust et al. Dec 1985
4586544 Yagi et al. May 1986
4757845 Siwinski Jul 1988
4784619 Blanchet Nov 1988
4807357 Zahn Feb 1989
4900276 Doutrich Feb 1990
5098311 Roath et al. Mar 1992
5208968 Camsell et al. May 1993
5419036 Lane et al. May 1995
5427552 Zielinski et al. Jun 1995
5501009 McClure Mar 1996
Non-Patent Literature Citations (1)
Entry
Western Electric Technical Digest No. 61 Jan. 1981 pp. 13-14 by G.D. Hudson et al.