DE2064634A1 - Electric switch - Google Patents

Description

Dr. phil. GB HAGEN *% f \ +> / £ ο /

Patent attorney

MUNICH 71 (Solin)
Franz-Hals-Strasse 21
Telephone 79 6213

AMP 2846 Munich, December 29, 1970

NS

AMP Incorporated
Eisenhower Boulevard
Harrisburg, Penna., Y.St.A.

Electric switch

Priority: January 13, 1970; V.St. No. 2 291

The invention relates to an electrical switch, in particular to one in which the adjuster is rotatably mounted in a housing by means of the material of the housing and / or the adjuster inherent Flexibility.

There are electrical Sehalter known in which the of Manually operated adjuster is mounted in a housing. A typical such switch has a two part Housing, each housing part carries one half of a bearing. The switch is put together by the housing parts positioned on each side of a bearing section of a manufacturer and fastened to one another by means of screws, for example · In particular if there are When it comes to mass production, the time required to assemble such switches is important.

It is an object of the present invention to provide a switch

109830/1231

Bayerische Vereinsbank Munich 820993

to create ter, which has a one-piece housing having a bearing, and an adjuster that is fast and can be easily installed in the warehouse.

An electrical switch having a one-piece housing having an opening therethrough, one into the opening introduced and extending in the longitudinal direction through this elongated adjuster and with a The set of contacts located in the housing and operatively connected to the manufacturer are identified according to the invention in that the housing has arched portions which slide on complementary arched ^ attack sections of the adjuster in order to mount the adjuster rotatably in the housing, with one or Several of the arched sections can be moved laterally with respect to the longitudinal axis of the taxe by bending the material of the curved sections and hold the adjuster in the snap it JK in the housing.

The invention is discussed below using an exemplary embodiment with reference to the figures. from show the figures:

Figure 1 is a perspektiYische representation of an electrical switch of the invention, which is moun- ted ψ on a printed circuit board;

Figure 2 tone. above along a section of the switch the line II-II τοη Figure 3;

Figure 3 shows a side section of the switch along the line III-III τοη Figure 2;

Figure 4 is a side section of the switch along the line IV-IV τοη Figure 2 \ and

Figure 5 is a view of the top of the contact arrangement of the switch of Figures 1 to 4,

An electrical switch 10 is mounted on a printed circuit board 11 which is located on one side

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ÖAD OBSGiNAL

has printed circuits 12 and is reinforced on the other side by a rigid metallic support plate 13. The switch 10 has a rectangular housing 14 made of molded "plastic" with a front wall 15, four side walls 16, and an open end 17 opposite the front wall 15. A pair of opposite side walls 16 are recessed adjacent the open end 17 at 20 for flush receiving the printed Circuit board 11, with the printed circuits 12 are located adjacent to the switch 10. The other pair of opposing side walls 16 are provided with recesses 21 which are formed so that locking projections 22 on the longitudinal edges of the printed f The circuit plate 11 and the support plate 13 engage in it in a locking manner.

A central cylindrical projection 23 provided in the front wall 15 extends away from the housing 14 outward. A generally rectangular opening 24 located coaxially with protrusion 23 accepts one Adjustment 25, which, as will be described, is rotatably mounted in the housing.

Reference is made to Figures 2 to 5. The opening 24 is defined by a first pair of opposing walls 26 and a second pair of opposing walls 27 · Si · walls 27 have a pair of outer end portions 30 which diverge outward, a pair of axially extending intermediate portions 31 and a pair of arched portions 32 which are shaped in that the inner end portion of the wall 21 are cylindrically rear-cut. At their inner ends, the opposing walls 26 are formed by a pair of opposing flexible retaining fingers 33 which are connected to the projection 23 are integral and extend inwardly with respect to them. Si opposite wall 26 b -

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BATH ORIGINAL

AMP 284-6 - 4 -

sit a pair τοη parallel flat surface parts 34, the extending axially from the outer end of the walls 26 and into a pair of inwardly directed paddles or lips 35, which are arranged near the free ends of the flexible holding fingers 33. The lips 35 form curved surface sections which have a common center of curvature 36 with the curved surface sections 32 to have. When looking inward through opening 24, these curved surfaces are concave. At the inner ends Of the pair of opposing walls 26 are a pair of inwardly diverging control surfaces 37.

™ At the one extending outward from opening 24 outer end of the Yerstellers 25 is a portion 38 for the fingers of an operator provided »Between the ends of the adjuster 25 is a pair of parallel planes Surfaces 40 are provided, each slidable on the pair of parallel flat surfaces 34 on the first pair of opposed Walls 26 attack »TJm the Yersteller 25 against an outward movement of the housing to hold and to allow a rotary movement of the adjuster is a pair of curved surface sections or Shoulders 41 are provided which slide on the pair of compl Attack mental arched sections 32.

Each parallel flat surface 40 has an axially outwardly extending projection or rib 42 with a beveled end section 43. The ribs 42 are arranged so that when the adjuster 25 is rotated, they strike the corresponding band sections 30 of the surfaces and limit this rotation. The beveled Endabsehnitte 43 are provided to facilitate the installation of the adjuster 25 in the housing 14 jtu. At the inner end of the parallel surfaces 40 there is a pair of curved surface sections in the form of τοη shoulders 44 which are complementary to the curved lips 35

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BATH

JBMP 284 * - 5 ~ 2Of453 *

Atelier 25 is introduced το * inside the housing 14,. The bevelled Bttd from "sections 43 on the control" surfaces 37 engage and the flexible holding fingers 33 and the curved "lips 35 press apart, ie laterally in Tob sug Longitudinal axis of the adjuster 25. This allows the divider 25 to be fully inserted, and when it is correct, the convex lips 35 engage the pair of switches 44 and hold the adjuster in a snap-fit housing . The adjuster 25 introduced in this way can turn freely on the ätarn housing 14 vm the Kruaeengaeittelpunlit 3 6, which is inclined in Pigar 3 :.

The inner Ettäabeehnitt 45 ie "Verst" Hers 25 becomes a "Wag ·" · 4? aafgeaoe »« *, which tmm consists of an «electrically insulating plastic material ·. One of the trolleys is attached to a flat, "Itffettiffeh conductive distributor bar 50, which carries one side of contacts 51, the" tt d "" ge * rweltteÄ sefceltunge "12 printed on the tie * SUio * afc * el9platte 11 * aeaa "ea Wirk" n. The Terteileif-50 i # f gfc # itbsüf «« ί rLeasehen 52 stored the

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You distributors · * 5Θ cries on her te «te« Sat * contactsÄ 51 distant page «« ei diae © a * ii * Afcstaod yeneinandrfr * efi * Jliehe JoMehläge 93 attf (figure 5) * Wl * Ü # figuren 2 uÄd 4 » algae, iretreölefc sie * th of the 15 inwardly two cross pieces · 54, the "wiping lying" would find & ΦΛ Oe * · 14 τ "ί run * Each · 54 with a tiHetüekig * with a hollow cylindrical protrusion 55, de" a spiral spring H contains

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AMP 2846

the one steel ball 57 with respect to the front wall 15 nacli inside and against the planes of the distributor bar 50 so tensioned that upon actuation of the adjuster 25 and the like Movement of the distribution rail 50 cooperates with each ball with a corresponding stop 55 and helps to keep the busbar in a predetermined position.

The ends 60 of the carriage 47 have cylindrical cavities 61, each of which contains a coil spring 62 which is attached to strikes the housing and biases the carriage 47 to a stable central position. Any off-center position is unstable and when the phaser is released it returns to the stable central position.

In connection with the rotatably arranged adjuster, other embodiments of carriages with distribution rails could also be used and contact arrangements are used

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BATH ORIGINAL

Claims (5)

Claims V 1. Electric switch With one »one continuous opening having one-piece housing, one inserted into the opening and extending longitudinally through it extending elongated adjuster and with a set of contacts that are arranged in the housing and are effectively connected to the adjuster, thereby characterized in that the housing (14) has curved portions (32, 35) which slide on complementary curved sections (41, 44) of the Yerstellers (25) attack in order to mount the adjuster rotatably in the housing, with one or more of the curved sections are laterally movable with respect to the longitudinal axis of the adjuster by bending the material of the domed sections and the adjuster snap fit into the housing. 2. Electrical switch according to claim 1, characterized in that the opening (24) is generally rectangular and is delimited by a first and a second pair of opposing walls (26, ^ 7), that the adjuster (25) is a pair of parallel has planar sides (4ü) slidingly engaged with corresponding complementary surfaces (34) on the first pair (26) of opposing walls of the opening, and that the domed portions of the housing are arranged in two pairs, a first pair ( 32) is provided in the second pair (27) of opposite walls of the opening and slidingly engages shoulders (41) on the Ver eteller and a second pair (35) is provided in the form of inwardly directed flanges attached to laterally flexible Sections (33) of the first pair (26) 109830/1231 AMP 2846 from opposite walls and in the stonepipe seat with complementary shoulders (44) on the adjuster come into engagement when aes adjuster is inserted into the Opening in a direction to the outside of the housing. 3. Electrical switch according to claim 2, characterized in that the first pair (32) of curved sections of the housing is convex when looking through the opening and the second pair (35) of curved sections on the housing is concave when viewed in the same direction. 4. Electrical switch according to claim 2 or 3, there characterized in that the laterally flexible portions (33) of the first pair (26) of opposite walls of the opening are designed as fingers, which move inwards with respect to the housing extend. 5. Electrical switch according to claim 4, characterized in that each of the pingers (33) has a control surface (3?) directed generally inwardly of the opening and arranged so that it engages with the introduction of the adjuster on this. 109830/123 1 Blank page