EP0725411A2 - Electrical switch and method of its fabrication - Google Patents
Electrical switch and method of its fabrication Download PDFInfo
- Publication number
- EP0725411A2 EP0725411A2 EP96830036A EP96830036A EP0725411A2 EP 0725411 A2 EP0725411 A2 EP 0725411A2 EP 96830036 A EP96830036 A EP 96830036A EP 96830036 A EP96830036 A EP 96830036A EP 0725411 A2 EP0725411 A2 EP 0725411A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- button
- cover
- switch
- molding
- united
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 11
- 238000000034 method Methods 0.000 title claims description 8
- 239000000463 material Substances 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 239000012778 molding material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000004308 accommodation Effects 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
- H01H23/02—Details
- H01H23/12—Movable parts; Contacts mounted thereon
- H01H23/14—Tumblers
- H01H23/143—Tumblers having a generally flat elongated shape
- H01H23/145—Tumblers having a generally flat elongated shape the actuating surface having two slightly inclined areas extending from the middle outward
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/0214—Hand-held casings
- H01H9/0228—Line cord switches
Definitions
- the present invention relates to an electrical switch and a method for its manufacture.
- Electric switches consist essentially of a box-shaped body with a base element and a cover situated above capable of delimiting a seat for housing two metal contacts from which the corresponding bare ends of the wire connected to the switch: said metal contacts being slaved to a press-button with lever rotating around a transverse pivot which is supported by corresponding seats provided in the basic element, so as to achieve closure , respectively the opening, of the two user-controlled contacts, with the rotation of the button.
- the base, the cover and the button dedicated to the switches are obtained separately, by injection of artificial plastic material into corresponding molds and successively assembled.
- the main purpose of the present invention is to drastically reduce the aforementioned drawbacks.
- the advantages deriving from the present invention essentially consist in that the manufacture of switches is greatly simplified and shortened thanks to the elimination of a molding phase and the phase of assembling the button to the cover, this, apart from the fact that it reduces the manufacturing time equally another condition compared to traditional technologies, also allows to reduce the impact of labor on the production cycle, as well as the quantity of plastic material complexly distributed to molds, with a great reduction in cost; that an electric switch according to the invention, apart from being simple and economical to manufacture, is very reliable even after an extended period of use.
- FIG. 1 shows a switch according to the invention, in exploded perspective view
- Fig. 2A show the switch of FIG. 1 assembled
- Fig. 2B shows the plan view of the switch of FIG. 2A
- Fig. 2C shows the sectional view along XX of FIG. 2B
- Fig. 2D represents the sectional view along YY of FIG. 2B
- Fig. 2E shows the sectional view along ZZ of FIG. 2B
- Fig. 3 shows the view in perspective of the switch cover of the previous figures, in the inverted position
- Fig. 4 shows the vertical section view of the push button and the switch cover shown in the previous figures, in enlarged scale.
- an electric switch according to the invention is formed by a box-shaped body with a basic element (1) and a corresponding cover (2) capable of delimiting a seat for the accommodation of two metal contacts (4,4 ') where at least one of the two is flexible and elastic and where the corresponding bare ends of the wire (F) of the electric line connected to the switch are linked, and by a push button with lever (3) which is provided with two coaxial elements and protruding transversely from the sides of the button capable of forming a male element of a cylindrical hinge (30) supported by corresponding seats (10) of the basic element (1) and is intended to control the closing, respect the opening, of said contacts (4) by means of a cam appendage (31) oriented towards the base element (1).
- said button (3) and said cover (2) are united with one another, with no solution of continuity, in correspondence with at least point (K) by means of a short piece of equipment.
- the button (3) and the cover (2) of the switch are united by means of two short pieces of molding material corresponding to each sides of the button (3).
- the force exerted on said points (K) by means of the elements (30) and derived from the pressure exerted on the button (3) at the end of obtaining rotation determines the rupture of each connecting piece between the button (3) and the cover (2), thus allowing normal use of the switch.
- this includes the phases of producing the cover (2), the button (3) and the base (1) of the switch. with injection of artificial plastic material into corresponding molds, and involves making the button (3) and the cover (2) in one piece, at the same time, in the same mold or imprint, that is to say united without a continuity solution corresponding to at least one point (K): said connection between the button (3) and the cover (2) being produced with the same plastic material used for molding the same.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacture Of Switches (AREA)
- Push-Button Switches (AREA)
Abstract
Description
La présente invention concerne un interrupteur électrique et un procédé pour sa fabrication.The present invention relates to an electrical switch and a method for its manufacture.
Des interrupteurs électriques sont connus les-quels sont constitués, essentiellement, d'un corps en forme de boîte avec un élément de base et un couvercle situé au-dessus aptes à délimiter un siège pour le logement de deux contacts métalliques d'où partent les extrémités nues correspondantes du fil rélié à l'interrupteur: lesdits contacts métalliques étant asservis à un bouton-pressoir à levier tournant autour à un pivot transversal lequel est soutenu par des correspondants sièges prevus dans l'élément de base, de manière à réaliser la fermeture, respectivement l'ouverture, des deux contacts à commande de l'usager, avec la rotation du bouton.
Il est aussi connu que la base, le couvercle et le bouton dedits interrupteurs sont obtenus séparément, par injection de matériel plastique atificiel dans des moules correspondantes et successivement assemblés.Electric switches are known which consist essentially of a box-shaped body with a base element and a cover situated above capable of delimiting a seat for housing two metal contacts from which the corresponding bare ends of the wire connected to the switch: said metal contacts being slaved to a press-button with lever rotating around a transverse pivot which is supported by corresponding seats provided in the basic element, so as to achieve closure , respectively the opening, of the two user-controlled contacts, with the rotation of the button.
It is also known that the base, the cover and the button dedicated to the switches are obtained separately, by injection of artificial plastic material into corresponding molds and successively assembled.
Mais le moulage de chaque pièce une par une entraîne une non souetable complexité de fabrication due principalement à la neccesité de prédisposer et gerer un bon nombre de moules et de plusieures lignes d'alimentation du matériel plastique et de réaliser l'assemblage des éléments formés dans lesdites moules ou empreintes. Tous ce-ci est particulièrement onéreux, spéciallement pour des productions importantes, soit pour la complexité des installations et de la méthodologie opérationnelle adoptée, soit pour la quantité de main d'oeuvre requise, et tout cela influence négativement le coût du produit fini, de tant plus qu'il s'agit d'un produit à bas prix.But the molding of each part one by one leads to a non-souetable manufacturing complexity mainly due to the need to predispose and manage a good number of molds and several supply lines of plastic material and to realize the assembly of the elements formed in said molds or imprints. All this is particularly expensive, especially for large productions, either for the complexity of the installations and the operational methodology adopted, or for the quantity of labor required, and all this negatively influences the cost of the finished product, all the more so it is a low-priced product.
Le but principale de la présente invention est celui de reduire de façon draconienne les inconvenients précités.The main purpose of the present invention is to drastically reduce the aforementioned drawbacks.
A se resultat on est parvenus, conformément à l'invention, en adoptant l'idée de réaliser un interrupteur électrique dont le bouton-poussoir et le couvercle soient unis en correspondance d'au moin um point de manière à former un corps unique au moyen d'un couche court et fin, le réliment entre le bouton et le couvercle étant auto-tranché avec la rotation du bouton au moment de la première utilisation ou essai.As a result, we have arrived, in accordance with the invention, by adopting the idea of producing an electric switch whose push button and cover are united in correspondence at least um point so as to form a single body by means of a short and thin layer, the reliment between the button and the cover being self-sliced with the rotation of the button at the time of the first use or test.
Il est aussi objet de la présente invention un procédé opérationel pour la fabrication d'un imterrupteur électrique, comprenant la phase de réaliser au même temps par moulage le couvercle et le bouton de l'interrupteur en un seul morceau, par injection de matériel plastique artificiel dans la même moule, ou empreinte.It is also an object of the present invention to provide an operational process for the manufacture of an electrical switch, comprising the phase of producing at the same time by molding the cover and the button of the switch in a single piece, by injection of artificial plastic material. in the same mold, or imprint.
Les avantages qui derivent de la présente invention consistent essentiellement en ce que la fabrication des interrupteurs est fortement simplifiée et raccourcie grace à l'élimination d'une phase de moulage et de la phase d'assemblage du bouton au couvercle, ce-ci, en dehors de fait qu'il reduit le temps de fabrication à parité de toute autre condition par rapport aux tecnologies traditionnelles, permet en outre de reduire l'incidence de la main d'oeuvre sur le cycle productif, comme ainsi la quantitè de matériel plastique complexivement distribuée aux moules, avec une grande reduction du coût; qu'un interrupteur électrique conformément à l'invention, outre à être de fabrication simple et économique, est très fiable même après une période prolongée d'utilisation.The advantages deriving from the present invention essentially consist in that the manufacture of switches is greatly simplified and shortened thanks to the elimination of a molding phase and the phase of assembling the button to the cover, this, apart from the fact that it reduces the manufacturing time equally another condition compared to traditional technologies, also allows to reduce the impact of labor on the production cycle, as well as the quantity of plastic material complexly distributed to molds, with a great reduction in cost; that an electric switch according to the invention, apart from being simple and economical to manufacture, is very reliable even after an extended period of use.
Ces avantages et caractéristiques de la présente invention ainsi que d'autres seront plus et mieux compris de chaque homme du métier à la lumière de la description qui va suivre et à l'aide des dessins annexés, donnés à titre d'exemple pratique d'une forme concrète de réalisation, mais à ne pas considérer dans le sens limitatif et sur lesquels: la Fig. 1 représente un interrupteur conformément à l'invention, en vue perspective éclatée; la Fig. 2A représentes l'interrupteur de Fig. 1 assemblé; la Fig. 2B représente la vue un plan de l'interrupteur de la Fig. 2A; la Fig. 2C représente la vue en coupe selon X-X de la Fig. 2B; la Fig. 2D représente la vue en coupe selon Y-Y de la Fig. 2B; la Fig. 2E représente la vue en coupe selon Z-Z de la Fig. 2B; la Fig. 3 représente la vue en perspective du couvercle de l'interrupteur des figures précedentes, en position renversée; la Fig. 4 représente la vue en coupe verticale du bouton-poussoir et du couvercle de l'interrupteur représenté dans les figures precedentes, en échelle agrandie.These advantages and characteristics of the present invention as well as others will be more and better understood by each person skilled in the art in the light of the description which follows and with the aid of the appended drawings, given by way of practical example. a concrete embodiment, but not to be considered in the limiting sense and on which: FIG. 1 shows a switch according to the invention, in exploded perspective view; Fig. 2A show the switch of FIG. 1 assembled; Fig. 2B shows the plan view of the switch of FIG. 2A; Fig. 2C shows the sectional view along XX of FIG. 2B; Fig. 2D represents the sectional view along YY of FIG. 2B; Fig. 2E shows the sectional view along ZZ of FIG. 2B; Fig. 3 shows the view in perspective of the switch cover of the previous figures, in the inverted position; Fig. 4 shows the vertical section view of the push button and the switch cover shown in the previous figures, in enlarged scale.
Réduit à sa structure essentielle et en reférence aux figures des dessins annexés, un interrupteur électrique conformément à l'invention est formé par un corps en forme de boîte avec un élément de base (1) et un couvercle (2) correspondant aptes à délimiter un siège pour le logement de deux contacts métalliques (4,4') où au moin un des deux est flexible et élastique et où sont liées les correspondantes extrémités nues du fil (F) de la ligne électrique réliée à l'interrupteur, et par un bouton-poussoir à levier (3) lequel est pourvu de deux éléments coaxiaux et proéminants transversalement des côtés du bouton aptes à former un élément mâle d'une charnière cylindrique (30) soutenus par des correspondants sièges (10) de l'élément de base (1) et est destiné à commander la fermeture, respectivent l'ouverture, desdits contacts (4) au moyen d'un appendice à came (31) orientée vers l'élément de base (1).Reduced to its essential structure and with reference to the figures of the appended drawings, an electric switch according to the invention is formed by a box-shaped body with a basic element (1) and a corresponding cover (2) capable of delimiting a seat for the accommodation of two metal contacts (4,4 ') where at least one of the two is flexible and elastic and where the corresponding bare ends of the wire (F) of the electric line connected to the switch are linked, and by a push button with lever (3) which is provided with two coaxial elements and protruding transversely from the sides of the button capable of forming a male element of a cylindrical hinge (30) supported by corresponding seats (10) of the basic element (1) and is intended to control the closing, respect the opening, of said contacts (4) by means of a cam appendage (31) oriented towards the base element (1).
Avantageusement, conformément à l'invention, ledit bouton (3) et ledit couvercle (2) sont unis entre eux, sans solution de continuité, en correspondance d'au moin en point (K) au moyen d'une pièce courte de matériel de moulage: le bouton (3) et le couvercle (2) étant separables par auto-tranchage de la pièce de réliement au moment de la première utilisation ou essai de l'interrupteur, par effet de l'effort exercé sur celui-ci au moyen du respectif élélment (30) du bouton (3).Advantageously, in accordance with the invention, said button (3) and said cover (2) are united with one another, with no solution of continuity, in correspondence with at least point (K) by means of a short piece of equipment. molding: the button (3) and the cover (2) being separable by self-slicing of the connecting piece at the time of the first use or test of the switch, by effect of the force exerted on it by means of the respective element (30) of the button ( 3).
Avantageusement, conformément à l'invention et en reférence aux figures 2E et 3 des dessins annexés, le bouton (3) et le couvercle (2) de l'interrupteur sont unis au moyen de deux pièces courtes de matèriel de moulage en correspondance de chaques côtés du bouton (3).Advantageously, in accordance with the invention and with reference to FIGS. 2E and 3 of the appended drawings, the button (3) and the cover (2) of the switch are united by means of two short pieces of molding material corresponding to each sides of the button (3).
Quand l'interrupteur, opportunement assemblé conformément aux tecniques en soi déjà connues aux hommes du métier, est essaié ou utilisé pour la première fois, l'effort exercé sur lesdits points (K) au moyen des éléments (30) et dérivé de la pression exercée sur le bouton (3) au fin d'en obtenir la rotation, détermine la rupture de chaque pièce de réliement entre le bouton (3) et le couvercle (2), ainsi permettant la normale utilisation de l'interrupteur.When the switch, suitably assembled in accordance with the techniques per se already known to those skilled in the art, is tested or used for the first time, the force exerted on said points (K) by means of the elements (30) and derived from the pressure exerted on the button (3) at the end of obtaining rotation, determines the rupture of each connecting piece between the button (3) and the cover (2), thus allowing normal use of the switch.
Pour ce qu'il concerne la procédé pour la fabrication d'un interrupteur du type déjà decrit, ce-ci comprend les phases de réalisation du couvercle (2), du bouton (3) et de la base (1) de l'interrupteur avec injection de matériel plastique artificiel dans des correspondantes moules, et comporte la réalisation du bouton (3) et du couvercle (2) en un seul morceau, au même temps, dans la même moule ou empreinte, c'est-à-dire unis sans solution de continuité en correspondance d'au moin un point (K): ledit réliement entre le bouton (3) et le couvercle (2) étant réalisé avec le même matériel plastique emploié pour le moulage des mêmes.As far as the method for manufacturing a switch of the type already described is concerned, this includes the phases of producing the cover (2), the button (3) and the base (1) of the switch. with injection of artificial plastic material into corresponding molds, and involves making the button (3) and the cover (2) in one piece, at the same time, in the same mold or imprint, that is to say united without a continuity solution corresponding to at least one point (K): said connection between the button (3) and the cover (2) being produced with the same plastic material used for molding the same.
Avantageusement, conformément à l'invention, il est prevu de réaliser le moulage du bouton (3) et du couvercle (2) avec deux points (K) d'union, chaqu'un des quels résultant d'un correspondant côté du bouton (3).Advantageously, in accordance with the invention, it is planned to mold the button (3) and the cover (2) with two points (K) of union, each of which resulting from a corresponding side of the button ( 3).
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT95FI000020A IT1277814B1 (en) | 1995-02-02 | 1995-02-02 | ELECTRIC SWITCH AND METHOD FOR ITS MANUFACTURE |
| ITFI950020 | 1995-02-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0725411A2 true EP0725411A2 (en) | 1996-08-07 |
| EP0725411A3 EP0725411A3 (en) | 1998-04-01 |
Family
ID=11351087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96830036A Withdrawn EP0725411A3 (en) | 1995-02-02 | 1996-01-26 | Electrical switch and method of its fabrication |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0725411A3 (en) |
| IT (1) | IT1277814B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002068970A1 (en) * | 2001-02-23 | 2002-09-06 | Channell Limited | Electrical test adaptor |
| EP3813087A1 (en) * | 2019-10-25 | 2021-04-28 | Ka Kin Kwok | In-line switch assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1518931A (en) * | 1967-02-16 | 1968-03-29 | Jaeger Sa | Pop-up button switch |
| GB1259356A (en) * | 1969-04-16 | 1972-01-05 | ||
| US4782200A (en) * | 1985-08-30 | 1988-11-01 | Alps Electric Co., Ltd. | Switch assembly |
| EP0435131A1 (en) * | 1989-12-28 | 1991-07-03 | Alcatel Business Systems | Keybord with captive keys |
| DE4214774A1 (en) * | 1992-05-04 | 1993-11-11 | Abb Patent Gmbh | Electric installation switch or button - has bearing point and pivot guide each side of switch rocker arm for it to rest in |
-
1995
- 1995-02-02 IT IT95FI000020A patent/IT1277814B1/en active IP Right Grant
-
1996
- 1996-01-26 EP EP96830036A patent/EP0725411A3/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1518931A (en) * | 1967-02-16 | 1968-03-29 | Jaeger Sa | Pop-up button switch |
| GB1259356A (en) * | 1969-04-16 | 1972-01-05 | ||
| US4782200A (en) * | 1985-08-30 | 1988-11-01 | Alps Electric Co., Ltd. | Switch assembly |
| EP0435131A1 (en) * | 1989-12-28 | 1991-07-03 | Alcatel Business Systems | Keybord with captive keys |
| DE4214774A1 (en) * | 1992-05-04 | 1993-11-11 | Abb Patent Gmbh | Electric installation switch or button - has bearing point and pivot guide each side of switch rocker arm for it to rest in |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002068970A1 (en) * | 2001-02-23 | 2002-09-06 | Channell Limited | Electrical test adaptor |
| EP3813087A1 (en) * | 2019-10-25 | 2021-04-28 | Ka Kin Kwok | In-line switch assembly |
| US11101578B2 (en) | 2019-10-25 | 2021-08-24 | Ka Kin Kwok | In-line switch assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0725411A3 (en) | 1998-04-01 |
| ITFI950020A1 (en) | 1996-08-02 |
| ITFI950020A0 (en) | 1995-02-02 |
| IT1277814B1 (en) | 1997-11-12 |
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