CA1091319A - Method of producing multiple contact assemblies and contacts therefor - Google Patents
Method of producing multiple contact assemblies and contacts thereforInfo
- Publication number
- CA1091319A CA1091319A CA302,293A CA302293A CA1091319A CA 1091319 A CA1091319 A CA 1091319A CA 302293 A CA302293 A CA 302293A CA 1091319 A CA1091319 A CA 1091319A
- Authority
- CA
- Canada
- Prior art keywords
- contact
- blanks
- bending
- members
- contacts
- 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
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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/10—Sockets for co-operation with pins or blades
- H01R13/11—Resilient sockets
- H01R13/112—Resilient sockets forked sockets having two legs
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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
- H01R43/16—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for manufacturing contact members, e.g. by punching and by bending
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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
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/40—Securing contact members in or to a base or case; Insulating of contact members
- H01R13/42—Securing in a demountable manner
- H01R13/436—Securing a plurality of contact members by one locking piece or operation
Landscapes
- Manufacturing Of Electrical Connectors (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
The present invention relates to a method of pro-ducing multiple contact assemblies and the contacts for use therein, and more particularly to electrical contacts formed by slotting blanks from a strip of material and subsequently bending the blanks and attaching a terminal post. In known multiple contact assemblies, the contacts are formed by slotting blanks from a band and individually bending the blanks around a line of symmetry parallel to the longitudinal axis to the contact. A termial post is then attached to each contact, and the contacts are individually inserted in an insulating housing. However, due to the large number of steps required for the produc-tion of the individual contact blades, the above process is time-consuming and expensive. In addition, due to the shape of the blanks, there is a great deal of waste when the blanks are slotted from the strip of material. According to the method of the present invention, a plurality of blanks are simultaneously bent around a common axis, while the blanks are connected together by a web. The advantages of the present process are due to the fact that the connected contact members are bent simultaneously around common axes of bending, so that the terminal posts can be simul-taneously applied to the contact members and welded in a single step, whereby all the contacts can be simultaneously inserted into the insulating housing.
The present invention relates to a method of pro-ducing multiple contact assemblies and the contacts for use therein, and more particularly to electrical contacts formed by slotting blanks from a strip of material and subsequently bending the blanks and attaching a terminal post. In known multiple contact assemblies, the contacts are formed by slotting blanks from a band and individually bending the blanks around a line of symmetry parallel to the longitudinal axis to the contact. A termial post is then attached to each contact, and the contacts are individually inserted in an insulating housing. However, due to the large number of steps required for the produc-tion of the individual contact blades, the above process is time-consuming and expensive. In addition, due to the shape of the blanks, there is a great deal of waste when the blanks are slotted from the strip of material. According to the method of the present invention, a plurality of blanks are simultaneously bent around a common axis, while the blanks are connected together by a web. The advantages of the present process are due to the fact that the connected contact members are bent simultaneously around common axes of bending, so that the terminal posts can be simul-taneously applied to the contact members and welded in a single step, whereby all the contacts can be simultaneously inserted into the insulating housing.
Description
The invention relates to a method of producing multiple contact assemblies and contacts there~or inoluding contact members and terminal posts attached thereto and, more speci~ically, contacts produced by slotting the con-tact members from a band.
Known multiple contact assemblies include contact members produced by slotting individual contact members rrom mate~ial in the form of a band. Each contact member consists of two congruent resilient arms and a web Join-ing the arms at ~he ends opposite to the contact tips.A~ter the slotting, the arms are bent around tAe line of symmetry of the contact member, with the line extending parallel to the direction in which a plug is inserted, so that the two congruent blade arms ~orm a pair of arms re-sembling a tuning fork. The tuning fork de~ines the open-ing Or a slit between the contact tips to allow insertion of a plug and has a U-shaped cross section when viewed in the area opposite the slit and in conjunction with the web. A terminal post provided with a bracket section is attached to the U-shaped opening. An insulating housing is provided for the resilient contacts produced in the above manner, with the bracket section of the terminal post abutting the recesses in the housing.
However, due to the large number of steps re-quired for the production of the individual contact blades, the above process is time-consuming and expensive. In addition, the waste from the slotting implies great expendi-tures of material.
The goal of the present invention is to develop a process of the above-specified type, which makes it possible to produce multiple contact assemblies rapidly and at low cost.
The advantage of the present process is that the connected contact members are bent simultaneously around common axes of bending, so that the terminal posts can be simultaneously applied to the contact members and welded in a single step, whereby all the contacts can be simultaneously inserted into the insulating housing. The common produc-tion of a plurality of contact members reduces the time required for the bending operations, the mounting o~ the terminal postsJ and the insertion into the insulating housing. Templates and gauges can be used to simplify many process steps and to automate them. The basic idea of the --invention is to bend the contact members across their ~ .
longitudinal direction rather than bending the contact members around individual axes after the slotting operations, with the axes of bending extending parallel to the direc-- tion of insertion. Very little material is required for these operations.
It is known in the production of knife-like - contacts and assemb'ies containing them to produce the individual knife-like contacts connected via a slotted strip and to break off the strip after inserting the con-tacts into an insulating housing, but in that case the problems originating from the bending of the contact members and from the attachment of the terminal posts do not arise. Therefore, a process suitable for producing assemblies with knife-shaped contacts cannot be employed for producing multiple contact assemblies having bent con-tact members and terminal posts attached thereto.
Fur~hermore, a process is known in which the contacts of a strip are ~ointly bent while the contacts are ~0 in the connected state. However, those assemblies do not comprise insulating housings. After initially slotting the ; arms at two opposite sides of a sheet metal plate, the plate is bent around the center line so that congruent ., ~
pairs of arms are formed in alignment. After that, a plastic strip is molded in the region of the arms and the individual contacts are electrically separated from each other by cutting operations. In those contact assemblies, the terminal posts are formed by the bent or folded sheet - metal p~ns which remain after the cutting operations.
Terminal posts o~ this type cannot support great loads and proved to be unsuitable for wire wrapping installations.
Additionally, the molding of the plastic strips is a com-plicated operation.
Particular advantages of the process of the instant invention result from the fact that the contact members are bent in the form of an "h" by folding the con- ~
~; tact members into alignment around a first axis of bending ~-(180 bend), by bending the contact members bac~ around a second axis of bending at an angle of about 90, by bending the contact members around a third axis at an angle of about 90, and by attaching the terminal posts at the i aligned portion of the contact members to touch a shoulder which is formed at an angle of about 90 on the contact members. Therefore, the terminal posts are relatively strong, and remain joined with the contact members even when they are subjected to a high mechanical load ~orce.
Good contact properties are obtained by bending at least one tab integral with the contact member laterally around the aligned portions of the contact member a~ter the contact members have been bent around the first axis of bending. In this manner, the aligned portions of the contact member are prevented from separating. The bending ; ~0 forces resulting from spreading apart the arms are there-fore absorbed by the blade contact proper without the arms bearing against the inner walls of the insulating housing.
A~ter ~nsert1ng the ~oined blsde contacts into B
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bottom section of the insulating housing, excellent support for the blade contacts inside the housing is obtaîned by closing the bottom section with a lid section which snaps into its position and has chambers for receiving the contact membersO In this ope-ration, locking shoulders in the form of steps provided on the - inner walls of the chambers are seated on matching recesses pro-vided on the contact members.
' The invention is particularly directed toward a method of producing multiple contact assemblies from a band of material comprising the steps of: slotting a portion of the band to form a plurality of contact member blanks, the blanks being connected -by a web; simultaneously bending the blanks around at least one axis common to the plurality of blanks and parallel to a longitu-dinal axis of the web to form tuning fork-shaped contact members having two arms; attaching a respective terminal post to each of ~-the bent contact members while the members are still connected to the web to form two-piece contacts; inserting a plurality of two-piece contacts into an insulating housing; and subsequently seve-ring the contacts from the web.
The invention is also directed toward a multiple con-tact asse~mbly comprising an insulating housing and a plurality of contacts mounted in the housing. Each contact includes an h-shaped contact member with two resilient arms, a double layer por-tion aligned with one of the arms and a shoulder portion connec- -ting the double layer portion to the other of the armsO A termi-nal post is attached to the double layer portion of the contact member such that an end of the post engages the shoulder portion of the contact member. Half the width of the terminal post plus the thickness of the double layer portion is approximately equal to half of the width of the contact member, whereby the terminal post is concentric with the contact memberO
The invention will now be explained with reference to , ~.
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a preferred embodiment shown in the drawings. In the drawing:
Figure 1 shows a portion of a slotted band with contact members which are connected via a strip and have not yet been bent;
; Figure 2 shows several contacts adhering to a slotted strip;
Figure 3 is a side view of the contacts with the slotted ~-strip of Figure 2;
Figure 4 is a cross section of a multiple contact assem-. bly including a contact;
Figure 5 is a front view of a single bent contact mem-; ber; and :
Figure 6 is a cross section along line 6-6 of Figure 5.
. Figure 1 shows a portion 1 of a band from which several contact members S (not yet bent) and a slotted strip 15 connecting the contact members have been formed by slotting operationsO Points ~-at which a separation is to take place upon breaking the strip - material have been scored between the slotted strip 15 and the un-bent contact members S during the slotting operationsO In the em-bodiment described, the contact members have a spacing of 2.54 mm (0.1") and the sheet metal has a thickness of 0.25 mm. The ini-tially unbent contact members S are bent in succession . .
.
.
~ - 4a -, around the axes of bending which are denoted by I, II, and III in Figure 1. In this manner h-shaped contact members
Known multiple contact assemblies include contact members produced by slotting individual contact members rrom mate~ial in the form of a band. Each contact member consists of two congruent resilient arms and a web Join-ing the arms at ~he ends opposite to the contact tips.A~ter the slotting, the arms are bent around tAe line of symmetry of the contact member, with the line extending parallel to the direction in which a plug is inserted, so that the two congruent blade arms ~orm a pair of arms re-sembling a tuning fork. The tuning fork de~ines the open-ing Or a slit between the contact tips to allow insertion of a plug and has a U-shaped cross section when viewed in the area opposite the slit and in conjunction with the web. A terminal post provided with a bracket section is attached to the U-shaped opening. An insulating housing is provided for the resilient contacts produced in the above manner, with the bracket section of the terminal post abutting the recesses in the housing.
However, due to the large number of steps re-quired for the production of the individual contact blades, the above process is time-consuming and expensive. In addition, the waste from the slotting implies great expendi-tures of material.
The goal of the present invention is to develop a process of the above-specified type, which makes it possible to produce multiple contact assemblies rapidly and at low cost.
The advantage of the present process is that the connected contact members are bent simultaneously around common axes of bending, so that the terminal posts can be simultaneously applied to the contact members and welded in a single step, whereby all the contacts can be simultaneously inserted into the insulating housing. The common produc-tion of a plurality of contact members reduces the time required for the bending operations, the mounting o~ the terminal postsJ and the insertion into the insulating housing. Templates and gauges can be used to simplify many process steps and to automate them. The basic idea of the --invention is to bend the contact members across their ~ .
longitudinal direction rather than bending the contact members around individual axes after the slotting operations, with the axes of bending extending parallel to the direc-- tion of insertion. Very little material is required for these operations.
It is known in the production of knife-like - contacts and assemb'ies containing them to produce the individual knife-like contacts connected via a slotted strip and to break off the strip after inserting the con-tacts into an insulating housing, but in that case the problems originating from the bending of the contact members and from the attachment of the terminal posts do not arise. Therefore, a process suitable for producing assemblies with knife-shaped contacts cannot be employed for producing multiple contact assemblies having bent con-tact members and terminal posts attached thereto.
Fur~hermore, a process is known in which the contacts of a strip are ~ointly bent while the contacts are ~0 in the connected state. However, those assemblies do not comprise insulating housings. After initially slotting the ; arms at two opposite sides of a sheet metal plate, the plate is bent around the center line so that congruent ., ~
pairs of arms are formed in alignment. After that, a plastic strip is molded in the region of the arms and the individual contacts are electrically separated from each other by cutting operations. In those contact assemblies, the terminal posts are formed by the bent or folded sheet - metal p~ns which remain after the cutting operations.
Terminal posts o~ this type cannot support great loads and proved to be unsuitable for wire wrapping installations.
Additionally, the molding of the plastic strips is a com-plicated operation.
Particular advantages of the process of the instant invention result from the fact that the contact members are bent in the form of an "h" by folding the con- ~
~; tact members into alignment around a first axis of bending ~-(180 bend), by bending the contact members bac~ around a second axis of bending at an angle of about 90, by bending the contact members around a third axis at an angle of about 90, and by attaching the terminal posts at the i aligned portion of the contact members to touch a shoulder which is formed at an angle of about 90 on the contact members. Therefore, the terminal posts are relatively strong, and remain joined with the contact members even when they are subjected to a high mechanical load ~orce.
Good contact properties are obtained by bending at least one tab integral with the contact member laterally around the aligned portions of the contact member a~ter the contact members have been bent around the first axis of bending. In this manner, the aligned portions of the contact member are prevented from separating. The bending ; ~0 forces resulting from spreading apart the arms are there-fore absorbed by the blade contact proper without the arms bearing against the inner walls of the insulating housing.
A~ter ~nsert1ng the ~oined blsde contacts into B
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bottom section of the insulating housing, excellent support for the blade contacts inside the housing is obtaîned by closing the bottom section with a lid section which snaps into its position and has chambers for receiving the contact membersO In this ope-ration, locking shoulders in the form of steps provided on the - inner walls of the chambers are seated on matching recesses pro-vided on the contact members.
' The invention is particularly directed toward a method of producing multiple contact assemblies from a band of material comprising the steps of: slotting a portion of the band to form a plurality of contact member blanks, the blanks being connected -by a web; simultaneously bending the blanks around at least one axis common to the plurality of blanks and parallel to a longitu-dinal axis of the web to form tuning fork-shaped contact members having two arms; attaching a respective terminal post to each of ~-the bent contact members while the members are still connected to the web to form two-piece contacts; inserting a plurality of two-piece contacts into an insulating housing; and subsequently seve-ring the contacts from the web.
The invention is also directed toward a multiple con-tact asse~mbly comprising an insulating housing and a plurality of contacts mounted in the housing. Each contact includes an h-shaped contact member with two resilient arms, a double layer por-tion aligned with one of the arms and a shoulder portion connec- -ting the double layer portion to the other of the armsO A termi-nal post is attached to the double layer portion of the contact member such that an end of the post engages the shoulder portion of the contact member. Half the width of the terminal post plus the thickness of the double layer portion is approximately equal to half of the width of the contact member, whereby the terminal post is concentric with the contact memberO
The invention will now be explained with reference to , ~.
~' `" ` lt)~l.~lt3 :
a preferred embodiment shown in the drawings. In the drawing:
Figure 1 shows a portion of a slotted band with contact members which are connected via a strip and have not yet been bent;
; Figure 2 shows several contacts adhering to a slotted strip;
Figure 3 is a side view of the contacts with the slotted ~-strip of Figure 2;
Figure 4 is a cross section of a multiple contact assem-. bly including a contact;
Figure 5 is a front view of a single bent contact mem-; ber; and :
Figure 6 is a cross section along line 6-6 of Figure 5.
. Figure 1 shows a portion 1 of a band from which several contact members S (not yet bent) and a slotted strip 15 connecting the contact members have been formed by slotting operationsO Points ~-at which a separation is to take place upon breaking the strip - material have been scored between the slotted strip 15 and the un-bent contact members S during the slotting operationsO In the em-bodiment described, the contact members have a spacing of 2.54 mm (0.1") and the sheet metal has a thickness of 0.25 mm. The ini-tially unbent contact members S are bent in succession . .
.
.
~ - 4a -, around the axes of bending which are denoted by I, II, and III in Figure 1. In this manner h-shaped contact members
2 are obtained.
In Figures 2 and 3, the h-shaped contact members 2 are shown with terminal posts 3 attached thereto by -welding, Bent portion 9 which was obtained by ~olding around - axis I consists o~ two aligned contact sections 9a and 9b.
Contact section 9b has recesses 10 which were obtained along with the contact members during the slotting operation.
Tabs 11 which are integral with contact section 9a are bent into recesses 10 so that the tabs embrace contact section 9b. Bent portion 9 is followed by a shoulder 8 obtained by bending around axis II. Axis III of bending is ' chosen so that contact member 2 has approximately s~uare ; cross section in the plane o~ shoulder 8. Shoulder 8 is adjacent an end of two arms 4a and 4b which end in the ~orm o~ cup-shaped contact tips 5a and 5b. The cup-shaped con-; tact tips ~orm a slit-like opening 7. Contact member 2 is provided with slots 12 which have abutment faces 13 above ;~
shoulder 8, extending parallel to the longitudinal axis of the blade contact and disposed on diagonally opposite sides of arms 4a and 4b and o~ contact tips 5a and 5b. A~ter bending contact members 2, the terminal post 3 is placed on each o~ the bent portions 9 so that one end ~ace of the terminal post abuts shoulder 8. Terminal post 3 is attached with the aid o~ a welding pin 17 on bent portion 9 by spot welding. Terminal post 3 consists o~ a material capable of sustaining mechanical loads and was formed from - a o.6 mm x o.6 mm wire material. Terminal post 3 has bevelled end faces 3a and 3b so that the post 3 can be ~ed into the assembly operations without preliminary alignment wor!~. About one third o~ a side ~ace o~ terminal post 3 rests on bent portion 9. Tabs 11, which embrace contact 1(~ 3i~
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portions 9a and 9b of bent portion 9 are shaped so that the ends of the tabs bear against terminal post 3. The posi-tions of bending axis III, the thickness of terminal post
In Figures 2 and 3, the h-shaped contact members 2 are shown with terminal posts 3 attached thereto by -welding, Bent portion 9 which was obtained by ~olding around - axis I consists o~ two aligned contact sections 9a and 9b.
Contact section 9b has recesses 10 which were obtained along with the contact members during the slotting operation.
Tabs 11 which are integral with contact section 9a are bent into recesses 10 so that the tabs embrace contact section 9b. Bent portion 9 is followed by a shoulder 8 obtained by bending around axis II. Axis III of bending is ' chosen so that contact member 2 has approximately s~uare ; cross section in the plane o~ shoulder 8. Shoulder 8 is adjacent an end of two arms 4a and 4b which end in the ~orm o~ cup-shaped contact tips 5a and 5b. The cup-shaped con-; tact tips ~orm a slit-like opening 7. Contact member 2 is provided with slots 12 which have abutment faces 13 above ;~
shoulder 8, extending parallel to the longitudinal axis of the blade contact and disposed on diagonally opposite sides of arms 4a and 4b and o~ contact tips 5a and 5b. A~ter bending contact members 2, the terminal post 3 is placed on each o~ the bent portions 9 so that one end ~ace of the terminal post abuts shoulder 8. Terminal post 3 is attached with the aid o~ a welding pin 17 on bent portion 9 by spot welding. Terminal post 3 consists o~ a material capable of sustaining mechanical loads and was formed from - a o.6 mm x o.6 mm wire material. Terminal post 3 has bevelled end faces 3a and 3b so that the post 3 can be ~ed into the assembly operations without preliminary alignment wor!~. About one third o~ a side ~ace o~ terminal post 3 rests on bent portion 9. Tabs 11, which embrace contact 1(~ 3i~
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portions 9a and 9b of bent portion 9 are shaped so that the ends of the tabs bear against terminal post 3. The posi-tions of bending axis III, the thickness of terminal post
3, and the thickness of the sheet metal used for the con-tact member are chosen so that the center line MP of terminal post 3 coincides with center line MS of the slit-like opening 7, with arms 4a and 4b being disposed in a s~m-metric relationship about, and parallel to, the center line.
In the next operation, contact members 2 ~rhich are still connected by slotted strip 15 are inserted into an insulating housing 20 along with posts 3 welded to the contact members. Terminal posts 3 protrude from openings 25 which are formed as a series of openings in bottom sec-tion 21 of insulating housing 20. Figure 4 is a cross sec-tion of a blade contact mounted inside insulatin~ housing 20. The bent end of folded portion 9 of contact member 2 is seated on bottom section 21.
After breaking slotted strip 15 along the scored points at which the breaking is to take place, a lid portion 22 provided with chambers 24 is inserted into bottom section 21 of insulating housing 20 by snapping the lid portion 22 into its position with the aid of de-tents 23. The cross section of chamber 24 slightly ex-ceeds the greatest horizontal cross section of contact members 2 so that arms 4a and 4b do not touch on the inner walls even when the multiple contact assembly is in the assembled state. The inner walls of the chambers are provided with step-like protrusions 26 on two diagonally opposite sides. Protrusions 26 have locking shoulders 28 - ~0 perpendicular to the direction in which the contact members are inserted Furthermore, bevelled guiding sections 29 are provided on the step-like protrusions to facilitate the application and insertion of lid portion 22. Locking i.3i9 shoulders 2~ firmly bear against the abutment faces 13 of slot 12. The thickness of protrusion 26 is slightly smaller than the width of slot 12 so that the lid portion can be easily applied. Since protrusions 26 and slots 12 are provided on diagonally opposite sides, the blade contacts and the terminal posts can be inserted, even after 1~0 rotation, into the bottom portion 21 of insulating housing 20. This guarantees a simple, reliable assembly of the multiple contact assembly.
Contact member 2 which was bent to have the shape of an "h" (see Figures 2 and ~) is a particularly advan- -tageous embodiment. A contact member bent in this manner can be used not only in multiple contact assemblies but also in individual connectors or connectors with circular ....
cross section. These contact members can be individually produced without using the above-described process.
The process described allows the manufacture of all multiple contact assemblies having terminal posts attached by welding to the contacts. To this end, a plurality of contact members is formed simultaneously by bending around common axes of bending, all terminal posts of a contact strip are attached in a single operation, and the contact members are simultaneously mounted in an in-sulating housing while they are still connected.
From the foregoing, it can be readily realized that this invention can assume various embodiments. Thus, -it is to be understood that the invention is not to be .i -; limited to the specific embodiments described herein, but ie to be llmlted only by the appended claime.
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In the next operation, contact members 2 ~rhich are still connected by slotted strip 15 are inserted into an insulating housing 20 along with posts 3 welded to the contact members. Terminal posts 3 protrude from openings 25 which are formed as a series of openings in bottom sec-tion 21 of insulating housing 20. Figure 4 is a cross sec-tion of a blade contact mounted inside insulatin~ housing 20. The bent end of folded portion 9 of contact member 2 is seated on bottom section 21.
After breaking slotted strip 15 along the scored points at which the breaking is to take place, a lid portion 22 provided with chambers 24 is inserted into bottom section 21 of insulating housing 20 by snapping the lid portion 22 into its position with the aid of de-tents 23. The cross section of chamber 24 slightly ex-ceeds the greatest horizontal cross section of contact members 2 so that arms 4a and 4b do not touch on the inner walls even when the multiple contact assembly is in the assembled state. The inner walls of the chambers are provided with step-like protrusions 26 on two diagonally opposite sides. Protrusions 26 have locking shoulders 28 - ~0 perpendicular to the direction in which the contact members are inserted Furthermore, bevelled guiding sections 29 are provided on the step-like protrusions to facilitate the application and insertion of lid portion 22. Locking i.3i9 shoulders 2~ firmly bear against the abutment faces 13 of slot 12. The thickness of protrusion 26 is slightly smaller than the width of slot 12 so that the lid portion can be easily applied. Since protrusions 26 and slots 12 are provided on diagonally opposite sides, the blade contacts and the terminal posts can be inserted, even after 1~0 rotation, into the bottom portion 21 of insulating housing 20. This guarantees a simple, reliable assembly of the multiple contact assembly.
Contact member 2 which was bent to have the shape of an "h" (see Figures 2 and ~) is a particularly advan- -tageous embodiment. A contact member bent in this manner can be used not only in multiple contact assemblies but also in individual connectors or connectors with circular ....
cross section. These contact members can be individually produced without using the above-described process.
The process described allows the manufacture of all multiple contact assemblies having terminal posts attached by welding to the contacts. To this end, a plurality of contact members is formed simultaneously by bending around common axes of bending, all terminal posts of a contact strip are attached in a single operation, and the contact members are simultaneously mounted in an in-sulating housing while they are still connected.
From the foregoing, it can be readily realized that this invention can assume various embodiments. Thus, -it is to be understood that the invention is not to be .i -; limited to the specific embodiments described herein, but ie to be llmlted only by the appended claime.
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Claims (8)
1. A method of producing multiple contact assemblies from a band of material comprising the steps of:
slotting a portion of the band to form a plurality of con-tact member blanks, the blanks being connected by a web;
simultaneously bending the blanks around at least one axis common to the plurality of blanks and parallel to a longi-tudinal axis of the web to form tuning fork-shaped con-tact members having two arms; attaching a respective termi-nal post to each of the bent contact members while the members are still connected to the web to form two-piece contacts; inserting a plurality of two-piece contacts into an insulating housing; and subsequently severing the con-tacts from the web.
slotting a portion of the band to form a plurality of con-tact member blanks, the blanks being connected by a web;
simultaneously bending the blanks around at least one axis common to the plurality of blanks and parallel to a longi-tudinal axis of the web to form tuning fork-shaped con-tact members having two arms; attaching a respective termi-nal post to each of the bent contact members while the members are still connected to the web to form two-piece contacts; inserting a plurality of two-piece contacts into an insulating housing; and subsequently severing the con-tacts from the web.
2. The method as claimed in Claim 1, wherein said bending step includes: folding the contact member blanks through 180° at a first axis of bending to form portions of double thickness having two aligned layers; bending one of the layers of each blank back at an angle of about 90°
around a second axis of bending to form shoulders at right angles to the portions of double thickness; and bending said one layer of each member toward the other layer about a third axis remote from the portions of double thickness to form h-shaped members; and wherein said attaching step includes attaching the terminal posts to the portions of double thickness with an end of each post engaging a respective shoulder.
around a second axis of bending to form shoulders at right angles to the portions of double thickness; and bending said one layer of each member toward the other layer about a third axis remote from the portions of double thickness to form h-shaped members; and wherein said attaching step includes attaching the terminal posts to the portions of double thickness with an end of each post engaging a respective shoulder.
3. The method as claimed in Claim 2, wherein after said folding step, at least one tab integral with one of the layers is bent laterally around the other layer to secure the portion of double thickness together.
4. The method as claimed in Claim 1, further compri-sing a step of securing a lid portion to the insulating housing after said inserting step, said lid portion having chambers for receiving the contact members, such that locking shoulders of step-like protrusions on the inner walls of the chambers engage the surfaces of recesses provided on the contact members to pre-vent removal of the contact members.
5. A multiple contact assembly comprising an insula-ting housing and a plurality of contacts mounted in said housing, each said contact including: an h-shaped contact member with two resilient arms, a double layer portion aligned with one of said arms and a shoulder portion connecting said double layer portion to the other of said arms; and a terminal post attached to said double layer portion of said contact member such that an end of said post engages said shoulder portion of said contact member, half the width of said terminal post plus the thickness of said double layer portion being approximately equal to half of the width of said contact member, whereby said terminal post is con-centric with said contact member.
6. The multiple contact assembly as claimed in Claim 5, wherein said contact member includes at least one tab integral with one of the layers of said double layer part, said tab being wrap-ped over the other of the layers.
7. The multiple contact assembly as claimed in Claim 5, further comprising a lid section for said housing, said lid sec-tion having individual chambers for receiving the contact members, the interior walls of said chambers including step-like protru-sions with bevelled guiding sections and retaining shoulders, said resilient arms of said contact members including diagonally op-posite recesses having faces for engaging said retaining shoulders.
8. The multiple contact assembly as claimed in Claim 7, wherein the cross section of said chambers slightly exceeds the cross section of said contact members so that said arms do not touch the walls of said chambers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2719262A DE2719262C2 (en) | 1977-04-29 | 1977-04-29 | Contact spring strip and method for its manufacture |
| DEP2719262.7 | 1977-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1091319A true CA1091319A (en) | 1980-12-09 |
Family
ID=6007674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA302,293A Expired CA1091319A (en) | 1977-04-29 | 1978-04-28 | Method of producing multiple contact assemblies and contacts therefor |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS53149689A (en) |
| CA (1) | CA1091319A (en) |
| DE (1) | DE2719262C2 (en) |
| FR (1) | FR2389255B1 (en) |
| GB (1) | GB1590365A (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3233652C2 (en) * | 1982-09-10 | 1986-04-10 | Siemens Ag, 1000 Berlin Und 8000 Muenchen | Contact spring for multi-pole connectors and housings |
| JPS59207571A (en) * | 1983-04-29 | 1984-11-24 | カルル・ヘ−ル | Connector member |
| CH665733A5 (en) * | 1983-04-29 | 1988-05-31 | Karl Hehl | CONTACT BAR. |
| US4627682A (en) * | 1983-07-29 | 1986-12-09 | Karl Hehl | Multi-pin male and female contact bars |
| FR2584242B1 (en) * | 1985-06-27 | 1988-04-08 | Souriau & Cie | METHOD FOR MANUFACTURING ELECTRICAL CONNECTOR, CARRIER STRIP FOR CONTACT ELEMENTS FOR CONNECTOR, TOOLS FOR IMPLEMENTING THE METHOD AND CONNECTOR OBTAINED THEREBY |
| JP2634829B2 (en) * | 1987-12-18 | 1997-07-30 | 松下電工株式会社 | IC socket manufacturing method |
| JPH0335310Y2 (en) * | 1988-07-04 | 1991-07-26 | ||
| JPH0261333U (en) * | 1988-10-26 | 1990-05-08 | ||
| JPH02134153A (en) * | 1988-11-15 | 1990-05-23 | Noritz Corp | Jet device for bubble bath |
| JPH0331437U (en) * | 1989-08-02 | 1991-03-27 | ||
| CH682998A5 (en) * | 1991-02-06 | 1993-12-31 | Siemens Ag Albis | Method and apparatus for position correct delivery of elements from a carrier tape. |
| DE4133169A1 (en) * | 1991-10-07 | 1993-04-08 | Abb Patent Gmbh | Electrical connection module for switchgear installation - has main block into which spring contact elements are set to couple with screw terminals or flat contacts |
| US5207603A (en) * | 1992-06-02 | 1993-05-04 | Molex Incorporated | Dual thickness blade type electrical terminal |
| DE102017129895A1 (en) * | 2017-12-14 | 2019-06-19 | Te Connectivity Germany Gmbh | Tape roll, electrical contact means and method of making electrical contact means |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3659243A (en) * | 1969-10-24 | 1972-04-25 | Amp Inc | Electrical connectors |
| US3673551A (en) * | 1969-11-28 | 1972-06-27 | Molex Products Co | Integrated circuit terminal and method |
| US3865462A (en) * | 1973-03-07 | 1975-02-11 | Amp Inc | Preloaded contact and latchable housing assembly |
| US3858153A (en) * | 1973-08-24 | 1974-12-31 | Amp Inc | Low profile contact for insertion in printed circuit board |
| US3955877A (en) * | 1974-03-14 | 1976-05-11 | Amp Incorporated | Low profile contact |
| US3922057A (en) * | 1974-04-23 | 1975-11-25 | Amp Inc | Carrier strip fed socket terminal |
| DE2421107A1 (en) * | 1974-05-02 | 1975-11-20 | Daut & Rietz Kg | Contact assembly for integrated circuits connecting sockets - in which adjacent contacts are not separated until after assembly |
| US4007977A (en) * | 1974-05-09 | 1977-02-15 | Bunker Ramo Corporation | Electrical connector |
| DE2431220C3 (en) * | 1974-06-28 | 1982-04-15 | Siemens AG, 1000 Berlin und 8000 München | Female connector for an electrical connector |
-
1977
- 1977-04-29 DE DE2719262A patent/DE2719262C2/en not_active Expired
-
1978
- 1978-04-24 JP JP4797178A patent/JPS53149689A/en active Granted
- 1978-04-25 GB GB16373/78A patent/GB1590365A/en not_active Expired
- 1978-04-28 FR FR7812802A patent/FR2389255B1/fr not_active Expired
- 1978-04-28 CA CA302,293A patent/CA1091319A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1590365A (en) | 1981-06-03 |
| JPS6134232B2 (en) | 1986-08-06 |
| DE2719262C2 (en) | 1987-04-23 |
| DE2719262A1 (en) | 1978-11-09 |
| FR2389255B1 (en) | 1984-03-16 |
| FR2389255A1 (en) | 1978-11-24 |
| JPS53149689A (en) | 1978-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |