CN1202542C - Piano-key fluorescent switch - Google Patents

Abstract

A piano-key fluorescent switch, an indicating block B6 comprises a position indicating light L1, one or more resistors (hidden under L1 in figure 1), and a simultaneous molding block 66. The simultaneous molding block 66 integrally has a T-shaped molded member 72 and leads 68, 69, 70 and 71 which are partially sealed with the mold member 72. The lead 68 integrally has an arcate contact 67a and a connecting part 681 to be the land for a resistor, etc., and the lead 69 integrally has a connecting part 691 for forming a crimp-style terminal 691a for the indicating light L1 and an arcate contact 67b, etc. The top of one end of the lead 70 is formed so as to be a crimp-style terminal 70b for the indicating light L1, and the other end is shaped so as to be the land for a resistor. A longitudinal thickness due to a contact can be reduced.

Description

The piano type fluorescent switch

Technical field

The present invention relates to the piano type fluorescent switch, be specifically related to a kind of piano type fluorescent switch that has the position display lamp, makes the contact counter-rotating by the pressing operation of key.

Background technology

Existing in the past multiple this type of piano type fluorescent switch is by commercially available or open.

For example, the piano type fluorescent switch that the applicant proposes in another application comprises: the installing frame that is located at the front and will makes the switching mechanism portion of the mutual counter-rotating of contact of switch be used for the baried type distributor according to the pressing operation of each snap-fastener handle at the snap-fastener handle of the operation that will be pressed is accommodated in the Switch main body of installable body, is configured in the front face side of body and the key that an end pivot back side butt snap-fastener handle in body with the shape with respect to the snap-fastener handle; The open side that described body is accommodated in the front openings housing of central portion with switching mechanism portion when terminal is accommodated in both ends and covers housing forms the lid of a part outstanding back opening towards the front of described snap-fastener handle; The back of housing is formed the central portion shape more outstanding than both sides; Described terminal by electrically contact that electric wire in the terminal board of switching mechanism portion and back that will be by being opened on housing inserts that electric wire that mouth inserts body remains on and terminal board between lock ingot spring constitute; Insert mouthful extending direction of the electric wire that inserts body at electric wire the part of terminal board is accommodated in body (Japan Patent special be willing to 2000-18091) towards the side-prominent shape of lid with terminal with the opening surface from housing.

Adopt this piano type fluorescent switch, the size of the fore-and-aft direction of body was dwindled than construct in the past.

But, in the above-mentioned piano type fluorescent switch, under having the situation of so-called fluorescent switch that the position display lamp that will be made up of neon light etc. is contained in the demonstration that constitutes on the printed base plate be accommodated in Switch main body in terminal often contact, and when when loading being zero, because be connected with external power source and will be welded on the back of printed base plate for a pair of contact of the usefulness of lighting a lamp at the position display lamp, so the gauge of the fore-and-aft direction of contact part becomes big, and the size that can't further dwindle the fore-and-aft direction of body.

The present invention in view of this, its purpose is to provide a kind of piano type fluorescent switch that can dwindle by the gauge of the caused fore-and-aft direction of contact.

Content of the present invention

For addressing the above problem, the piano type fluorescent switch of technical scheme 1 comprises: the installing frame that the snap-fastener handle of the operation that will be pressed is located at the front and will makes the switching mechanism portion of the mutual counter-rotating of contact of switch be used for the baried type distributor according to the pressing operation of each snap-fastener handle is accommodated in the Switch main body of installable body; Be configured in the front face side of body and the key that an end pivot back side butt snap-fastener handle in body with shape with respect to the snap-fastener handle; The open side that described body is accommodated in the front openings housing of central portion with switching mechanism portion when terminal is accommodated in both ends and covers housing forms the lid of a part outstanding back opening towards the front of described snap-fastener handle; The back of housing is formed the central portion shape more outstanding than both sides; Described terminal by electrically contact that electric wire in the terminal board of switching mechanism portion and back that will be by being opened on housing inserts that electric wire that mouth inserts body remains on and terminal board between lock ingot spring constitute; Insert mouthful extending direction of the electric wire that inserts body at electric wire the part of terminal board be accommodated in terminal the body towards the side-prominent shape of lid with the opening surface from housing, it is characterized in that:

The terminal board of one sidepiece of described body is provided with 2; The place ahead at these 2 terminal boards is provided with display unit; This display unit is made of position display lamp, resistance and while molded component; This while molded component have integratedly T word shape moulded parts and a part by the 1st, 2,3 reeds of involution; The 1st reed has with forming as one: and arciform 1st contact that be in contact with it bent towards outside foot terminal board lateral bending outstanding abreast, a side at rear on the way with moulded parts from a square end portion of the head of moulded parts, from the base portion side of the 1st contact by extending the connecting portion that makes a part is exposed, this exposes a part become the plug ring that resistance uses along the base portion side of its head the moulded parts; The 2nd reed forms to have: protrude the 2nd arciform contact bent towards outside the opposing party's parallel with the foot of moulded parts, rear on the way terminal board lateral bending and that be in contact with it from the opposing party end of the head of moulded parts,, leading section outstanding towards the outside by the ear side from described the opposing party's end the moulded parts from the base portion side of the 2nd contact forms the connecting portion that position display is used the terminal of lamp; The ear side of the distolateral end from described the opposing party of the 3rd reed one is outstanding towards the outside, leading section forms the terminal that the position display lamp is used, the ear side of another distolateral end from described the opposing party is by extending and expose a part towards the base portion side of its head the moulded parts, this part of exposing forms the shape of the plug ring that resistance uses, owing in the thickness of the moulded parts that resistance is housed, be provided with the 1st, the 2nd contact, decapacitation than contact be connected with printed base plate more slim outside, because of with the 1st, the 2nd contact is arranged to parallel with the foot of moulded parts, so can dwindle the width dimensions of molded component simultaneously.

Technical scheme 2 ties up in the piano type fluorescent switch of technical scheme 1, it is characterized in that: having with described resistance is also to have the 2nd resistance outside the 1st resistance; The 1st reed also has integratedly from the base portion side of the 1st contact and extends and a part is exposed the connecting portion that becomes the plug ring that the 2nd resistance uses from this towards its foot side by moulded parts; The 2nd reed also has from the base portion side of the 2nd contact integratedly by extending and a part is exposed the connecting portion that becomes the plug ring that the 2nd resistance uses from this towards its foot side in the moulded parts.

The simple declaration of accompanying drawing

Fig. 1 is the figure that the display unit of one embodiment of the invention piano type fluorescent switch is shown.

Fig. 2 is the figure that makes use-case that the piano type fluorescent switch of present embodiment is shown.

Fig. 3 is the stereogram of Fig. 2.

Fig. 4 is front view, underside view, the right side view of same Switch main body.

Fig. 5 is the rearview of same Switch main body.

Fig. 6 is the profile of same Switch main body.

Fig. 7 is for being inserted with the figure that sees from the place ahead of part status in the housing of same Switch main body.

Fig. 8 is the exploded perspective view of same Switch main body.

Fig. 9 is the internal circuit diagram of same Switch main body.

Figure 10 is molded component when illustrating in the manufacture process.

Figure 11 is the exploded perspective view of display unit.

Embodiment

Existing accompanying drawings piano type fluorescent switch of the present invention.

Fig. 1 is the display unit that one embodiment of the invention piano type fluorescent switch is shown, and Fig. 2 is the figure that makes use-case that the piano type fluorescent switch of present embodiment is shown, referring now to these description of drawings present embodiments.In addition, Fig. 1 (a) and (b), (c), (d) are respectively from face side, down side-looking, the right side is looked, rear side is seen display unit figure.

Its contact of piano type fluorescent switch of present embodiment has the structure of 4 way switch, as shown in Figure 2, comprising: have a form and the end pivot that snap-fastener handle 32 and each pressing operation just make the Switch main body 1 of contact counter-rotating and be configured to regard to the front (among Fig. 2 top) of Switch main body 1 and in the key 43 of the be pressed into snap-fastener handle 32 of Switch main body 1.The body 5 rectangular frame shapes of Switch main body 1 and being maintained at have utensil and install in the installing frame 2 with fenestra 2a.And the plate (sheet frame 120 and style strip 130) that has vacancy openning 120a, the 130a long and wideer in installing frame 2 front face side overlay configuration than the fenestra 2a of installing frame 2.Installing frame 2 makes the utensil installing hole 2b that makes the utensil erecting device have 3 groups at length direction.

In these parts, because installing frame 2, key 43, sheet frame 120, style strip 130 are same as the prior art, so followingly elaborate for Switch main body 1 by accompanying drawing.

Fig. 3 is the stereogram of Fig. 2, Fig. 4 is front view, underside view, the right side view of same Switch main body, Fig. 5 is the rearview of same Switch main body, Fig. 6 is the profile of same Switch main body, Fig. 7 is for being inserted with the figure that sees from the place ahead of part status in the housing of same Switch main body, Fig. 8 is the exploded perspective view of same Switch main body, and Fig. 9 is the internal circuit diagram of same Switch main body.

The body 5 of Switch main body 1 is rectangular-shaped, and is formed by the housing 5b of the front openings that is the forming synthetic resin product and the lid 5a that is incorporated into the back opening of housing 5b.That is to say, extended assembling sheet 3 towards the rear, the assembling projection 6 of the two sides of the assembly hole 4 that is located at assembling sheet 3 by being fastened on the short direction that is formed at housing 5b and in conjunction with housing 5b and cover 5a from the trailing edge of two side of the short direction of lid 5a.Make more little inclined plane 6a in the 6 places formation of assembling projection, will cover 5a near housing 5b, just assembling sheet 3 can be incorporated into simply assembling projection 6 as long as exert all one's strength to act as from the outstanding size of housing 5b approaching more lid 5a.

The size of the short direction of body 5 be formed up to many 3 so-called big angle logotype shape (with reference to JIS C8304) but the configuration utensil construction of baried type the time employed installing frame installation dimension.That is to say, the size of the length direction of the fenestra of employed installing frame when the size of the length direction of the fenestra 2a of above-mentioned installing frame 2 is set at the construction of the distributor that equals baried type, therefore, the short direction of the body 5 of the Switch main body shown in the present embodiment 1 is of a size of about 1/3rd the size of size of length direction of the fenestra 2a of installing frame 2.The distributor of this size and big angle logotype shape similarly is called " 1 part dimension ".

On the other hand, the size of the length direction of body 5 is substantially equal to the size of the short direction of fenestra 2a, at prominent respectively mounting jaw 11a, the 11b that can be fastened on the above-mentioned utensil installing hole 2b that is located at the fenestra 2a position that surrounds installing frame 2 that establish in each side of the length direction of the lid 5a of the front portion that forms body 5, mounting jaw 11a, 11b remain in the installing frame 2 body 5 by being fastened on utensil installing hole 2b.Side sidewall (with reference to Fig. 4 (c)) at the length direction of lid 5a locates to form 2 cut-in groove 11c that make the open fore-and-aft direction in rear end, and the position between the cut-in groove 11c forms at thickness direction has the flexual sheet 11d that scratches.The rear side (with reference to Fig. 6) of scratching sheet 11d for lid 5a inherence forms vacancy 12, scratches sheet 11d and towards the inside bend of lid 5a mounting jaw 11a is become can to retreat from the side elastic of lid 5a by making.

Therefore, insert the utensil installing hole 2b of installing frame 2 as the mounting jaw 11b of the side's that will be located at the length direction that covers 5a side, and making mounting jaw 11a body 5 be inserted the fenestra 2a of installing frames 2 with retreating from the side of lid 5a, mounting jaw 11a promptly inserts utensil installing hole 2b and body 5 is remained in the installing frame 2.And, being pressed into and covering 5a as scratching sheet 11d, mounting jaw 11a promptly extracts from utensil installing hole 2b, and can body 5 be taken out from installing frame 2.To scratch sheet 11d and be equipped with and press projection 11e in order to be pressed into easily at the rearward end lateral surface of scratching sheet 11d.Installing frame 2 is installed in construction surface such as wall equally with the distributor of baried type, and the rear portion of body 5 is embedded in the construction surface.

But the inner space of housing 5b is divided into Room 3 at length direction, and sidedness is to take in the terminal receiving room 13,14 of terminal, and central area is divided into the central receiving room 23 of taking in the formation switching mechanism portion darker than terminal receiving room 13,14.In terminal receiving room 13, take in by by 2 terminal boards 15 and 2 lock shape springs 16 and remove and buckle 17 terminals of forming, take in by buckleing 21 terminals of forming by 2 terminal boards 18 and 2 lock shape springs 19 and releasing at terminal receiving room 14.Shown in Fig. 5,6, respectively provided a pair of electric wire at the rear wall of the housing 5b of corresponding terminal receiving room 13,14 and inserted mouthful 13a, a 14a, and a pair of electric wire insert mouthful 13a, 14a near provided 1 respectively and removed hole 13b, 14b.

The both ends of the band plate of lock shape spring 16,19 by curving the rubber-like conductive metal respectively and form lock ingot sheet 16a, 19a and contact chip 16b, 19b at the both ends of central plate 16c, 19c respectively.Lock ingot sheet 16a, 19a curve the J word shape, and are inclined to the distance that enlarges with central plate 16c, 19c towards front end from the bond sites with central plate 16c, 19c.And contact chip 16b, 19b curve the S word shape, have elasticity at the thickness direction of central plate 16c, 19c.

Each terminal board 15 has: anter 15a, opposed facing pressing tablet 15b and communication sheet 15d and the support chip 15e that is connected with it in the wings.On the other hand, each terminal board 18 has 2 fixed contact 25c, 25d (with reference to Fig. 7).That is to say, have configuration respectively in each zone of the central receiving room 23 that each terminal board 18 is separated by partition wall 23a and have the contact retention tab 18f of the curved shape of 2 fixed contact 25c, 25d, and the fixed contact 25c of the base portion side of contact retention tab 18f is positioned at terminal board 18 homonymies for partition wall 23a, and the fixed contact 25d of the front of contact retention tab 18f is positioned at the opposition side of terminal board 18 for partition wall 23a.Position among the contact retention tab 18f between two fixed contact 25c, the 25d is configured to intersect mutually and be X word shape when frontal is seen.Before and after forming, the crossover sites of contact retention tab 18f separates and electric insulation.And under this state, the fixed contact 25d of the fixed contact 25c of a side terminal board 18 and the opposing party's terminal board 18 is an opposed facing position relation.

Terminal board 15,18 and lock shape spring 16,19 and electric wire insert the position relation of mouthful 13a, 14a and set for: lock ingot sheet 16a, 19a and contact chip 16b, 19b be respectively in the face of pressing tablet 15b, 18b, and insert between pressing tablet 15b, the 18b that electric wire that mouthful 13a, 14a be directed into body 5 inserts the lock ingot sheet 16a, the 19a that lock shape spring 16,19 and contact chip 16b, 19b and terminal board 15,18 respectively from electric wire.Therefore, in case electric wire inserts body 5, electric wire promptly is held between pressing tablet 15b, the 18b of lock ingot sheet 16a, 19a and contact chip 16b, 19b and terminal board 15,18, make the nip heart yearn of electric wire of the front end of lock ingot sheet 16a, 19a prevent to come off, and utilize lock ingot sheet 16a, 19a and contact 16b, 19b that the heart yearn of electric wire and terminal board 15,18 are electrically connected.Utilize the spring force of lock shape spring 16,19, the terminal that need not use the terminal screw just can connect this structure of electric wire is called speed knot terminal.In speed knot terminal,, need make electric wire certain to the insertion amount that electric wire inserts mouthful 13a, 14a for mechanical connection state and the needed performance of status of electrically connecting that obtains electric wire.At this,, and form gauge groove 22 in the back of housing 5b for whether the cut-out amount of the insulation epidermis that can confirm electric wire simply is certain.When cutting off the insulation epidermis, as long as the end of electric wire is cooperated and confirms the cut-out amount of insulation epidermis with gauge groove 22.

Remove button 17,21 and be and adopt the thermosetting resin of urea resin etc. to form, and face the form of removing hole 13b, 14b with the rear portion and take in each terminal receiving room 13,14 respectively to housing 5b.A part of removing button 17,21 can contact lock ingot sheet 16a, the 19a of lock shape spring 16,19, remove button 17,21 by removing hole 13b, 14b with the leading section pressing operation of the instrument of negative screwdriver etc., lock ingot sheet 16a, 19a are drawn back the confining force that weakens electric wire from pressing tablet 15b, the 18b of terminal board 15,18, under this state, can extract electric wire.At this, remove the button 17 a pair of lock shape springs 16 that are configured to across corresponding end daughter board 15, and remove the button 21 lock shape springs 19 that are configured to across corresponding end daughter board 18.

In central receiving room 23, form and separate the space of taking in 2 switch gates 24 that travelling contact 29 remained on the two sides and to make two switch gates 24 insulating partition wall 23a non-contiguously mutually.That is to say, as shown in Figure 6, each switch gate 24 insertion be formed at the inner peripheral surface of housing 5b and partition wall 23a position limit recess 27 and with the support chip 15e state of contact of corresponding terminal board 15 under, make the travelling contact 29 on two sides become and can connect from freely relative with fixed contact 25c, 25d.

As shown in Figure 1, display unit B6 has: have the position display lamp L1 that is made up of neon light integratedly, a molded component 66 with its resistance (chip-resistance) R1 that is connected in upright arrangement and when carrying these and being connected to contact 67a, the 67b at two ends of its circuit in upright arrangement.The detailed introduction of relevant display unit B6 as described later.Yet,, do not use (aftermentioned is with reference to Fig. 9) in the present embodiment though the resistance R 2 among Fig. 1 is to connect side by side to be position display lamp L1 and the resistance R 1 that connects in upright arrangement.

At this, anter 15a, the 18a of terminal board 15,18 forwards disposes terminal board 15,18 highlightedly than the opening surface of the front end of housing 5b, electric wire guarantees and prior art structure same size to the insertion amount of terminal board 15,18, but that the size of the fore-and-aft direction of housing 5b makes is littler than prior art structure.And, though lid 5a the size of fore-and-aft direction is made and prior art structure same degree, for making not emersion lid 5a side of terminal board 15,18, and form at the inner peripheral surface of lid 5a abutment end daughter board 15,18 anter 15a, 18a push the hub portion 53 that uses.By this structure, the size that makes electric wire insert near the fore-and-aft direction of the body 5 of mouthful 13a, 14a becomes littler than prior art structure.But the central portion of the back of housing 5b forms than the rearward outstanding protuberance 7 in both ends that is located at electric wire insertion mouthful 13a, 14a.

Display unit B6 is accommodated in the taking in the recess 55 of back opening of an end that is formed at the length direction that covers 5a.Be combined into display unit B6 is accommodated in and take in recess 55 as covering 5a and housing 5b, the leading section of contact 67a, 67b connects with anter 18a, the 18a bullet of terminal board 18,18 respectively.That is to say, be inserted with the circuit in upright arrangement of position display lamp L1 and resistance R 1 between the two ends daughter board 18.Its result, internal circuit becomes the structure of Fig. 9.When connecting situation about using under the state of power supply and load with this kind 4 way switch, in Fig. 9, be added with supply voltage between the terminal shown in the symbol 1 and 3, when load was closed, position display lamp L1 opened.Be lighting load as load, lighting load is in the dark place of turning off the light, and open position display lamp L1 is location aware easily.

Among the lid 5a,, the light cover 41 with light transmission is installed on open-work window 40 being communicated with the open-work window 40 of taking in recess 55 with the antetheca formation of taking in recess 55 corresponding positions.Therefore, the state of turning off the light of lighting a lamp of position display lamp L1 can pass through light cover 41 Visual Confirmations.

In the back of housing 5b or the suitable position of side be provided with the fix mark 56 of capacity etc. of the mark of the structure that shows contact, pattern and demonstration.This mark 56 is sneaked into inorganic compound that contains silicon or the pigment that contains silicon in the material that forms housing 5b, the color development by the pattern that makes laser beam irradiation one-tenth acquisition mark 56.When forming this mark 56, the material of the pigment coloring by adopting suitable selection is even use more low intensive laser beam also can give clear and definite contrast.

But contact constitutes switching mechanism portion with 2 counter-rotating springs 30, counter-rotating handle 31, snap-fastener handle 32, glider cam 33, the returning spring 37 established for rotating switch gate 24.Two counter-rotating springs 30 are helical spring, insert a sheet 24a of the leading edge that is darted at two switch gates 24 in the rearward end of counter-rotating spring 30, and leading section is accommodated in two 31a of portion of the back opening that is located at counter-rotating handle 31.Counter-rotating handle 31 exposes the front face side of covering 5a by the through hole 52 that provides at the diapire of the recess 51 of being located at the front of covering 5a.And, establish the fulcrum projection 31b that leading section is the triangle of tapered by prominent in the two sides of the pars intermedia of counter-rotating handle 31, and fulcrum projection 31b pivot is propped up in both side edges that is formed at through hole 52 and open towards the rear bearing portion 50, and the handle 31 that will reverse is mounted to for lid 5a swing freely.That is to say that the leading section by the handle 31 that will reverse inserts the through hole 52 that cover 5a from the rear, and fulcrum projection 31b is inserted bearing portion 50, and counter-rotating handle 31 is swung freely for lid 5a.As mentioned above, the handle 31 that reverses is linked to two switch gates 24 via two counter-rotating springs 30, and when 31 swings of counter-rotating handle, counter-rotating spring 30 passes through the maximum position of compression in the centre of hunting range.Act on the direction counter-rotating of the spring force of switch gate 24 from counter-rotating spring 30 in the front and back of this position, and utilize the spring force of counter-rotating spring 30 that switch gate 24 is moved rapidly.

But, in the counter-rotating handle 31, close projection 34 being equipped with a pair of extension outstanding towards the place ahead and that extension is combined on the glider cam 33 by the through hole 52 and the both sides of exposing the position of the front face side of cover 5a.Glider cam 33 constitutes when being located at the pressing operation of the snap-fastener handle 32 that covers 5a, and the position relation corresponding to counter-rotating handle 31 slides along the back side of snap-fastener handle 32 in the face of the swaying direction that comprises the handle 31 that reverses.The structure of relevant glider cam 33 as described later.

Snap-fastener handle 32 has towards the guide projections 36 of the rearward end of two lateral surfaces of length direction, by guide projections 36 being inserted the guide channel 35 at rear portion that is formed on the both sides inner peripheral surface of the recess 51 that cover 5a along fore-and-aft direction, and can be towards front and back to mobile freely and prevent to come off towards the place ahead.And, because make terminal board 15,18 outstanding towards the place ahead as described above with respect to housing 5b, so make the size of the fore-and-aft direction of snap-fastener handle 32 littler than prior art structure, thus, though with the stroke of the fore-and-aft direction of snap-fastener handle 32 guarantee with the same degree of prior art structure, can prevent that also snap-fastener handle 32 and terminal board 15,18 from interfering.But as the fore-and-aft direction size of dwindling snap-fastener handle 32 is located at the inner peripheral surface of the recess 51 that covers 5a and can diminishes with the contact area of snap-fastener handle 32, and the snap-fastener handle 32 easy noise made in coughing or vomiting clatter that becomes when mobile towards front and back is rung.At this, in the present embodiment, the side face of snap-fastener handle 32 is formed and the front orthogonal, be formed at the contact area of inner peripheral surface and the side face of snap-fastener handle 32 of the recess 51 of housing 5b when increasing the pressing operation of snap-fastener handle 32, snap-fastener handle 32 is moved and can the noise made in coughing or vomiting clatter loud towards front and back.

The prominent projection 32d that establishes in the back of snap-fastener handle 32, the hole of the plain film 37b by projection 32d being inserted the returning spring 37 formed in flat spring of boring a hole makes returning spring 37 be installed in the back of snap-fastener handle 32.Returning spring 37 forms and will extend from 2 returning spring sheet 37a one that plain film 37b enlarges towards the rear, and the bottom surface that the front end bullet of the returning spring sheet 37a by making returning spring 37 is connected on recess 51 makes snap-fastener handle 32 application of force forwards.

Glider cam 33 is to utilize the rubber-like thermoplastic resin of polyacetals etc. and form " mouth " word shape, relatively to the prominent extension of establishing corresponding to counter-rotating handle 31 in the back of the side portion extension that closes projection 34 close cam 38, and have at the central portion of other side portion and to make the prominent shape that is set as " eight " word shape of a pair of spring leaf 33a one.The projection 32a of the back by will being darted at snap-fastener handle 32 inserts between the two spring leaf 33a, and slidably installs glider cam 33 freely in the back of snap-fastener handle 32, and utilizes the elasticity of spring leaf 33a to make restoring force be applied to glider cam 33.

Prominently integratedly in the face side end of the lid 5a of the body of Switch main body 1 establish a pair of axial region 192 outstanding towards oblique the place ahead for pivot key 43.The leading section of axial region 192 forms cylindric along the short direction of lid 5a.Be provided with utilization in an end at the back side of key 43 the metal bearing that flat spring forms is installed in the bearing portion 191 (with reference to Fig. 4) that embeds usefulness hole 191a with spring 191b.That is to say, the axial region 192 that is located at Switch main body 1 is flexibly embedded use hole 191a, then be not easy to come off, and key 43 can be rotated freely pivot.In addition, be equipped with at key 43 places and prevent the anti-sheet 43a that pulls out that comes off towards the rear.The anti-sheet 43a that pulls out inserts in the vacancy 12 (with reference to Fig. 6) by the patchhole 54 that is formed on the antetheca that covers 5a, and is located at the anti-card claw stop 43b card that pulls out the leading section of sheet 43a only limits key 43 at the periphery of patchhole 54 slewing area by making.Patchhole 54 is also established 3, shown in Fig. 4 figure (a).

As mentioned above, be installed on the Switch main body 1, in case pressing operation key 43 is that key 43 is rotated at the center with axial region 192 grades promptly by making key 43.The back butt of key 43 is located at the snap-fastener handle 32 of Switch main body 1, pressing operation key 43, and snap-fastener handle 32 promptly is pressed into body 5.

The action of above-mentioned Switch main body 1 below is described simply.Fig. 6 illustrates travelling contact 29 and fixed contact 25c state of contact, the right side that counter-rotating handle 31 is swung to figure.At this moment, glider cam 33 utilizes spring leaf 33a to be positioned at the middle position of moving range.In a single day pressure is acted on key 43 from this state, snap-fastener handle 32 is promptly resisted returning spring 37 and is pressed into body 5, and with snap-fastener handle 32 glider cam 33 is moved downwards.At this moment,, the extension that the extension in left side closes cam 38 and the left side of counter-rotating handle 31 among the figure of glider cam 33 is pressed in the left part of counter-rotating handle 31 because closing projection 34 butts, so counter-rotating handle 31 is center direction rotation left with the front end of fulcrum projection 3 1b.The extension in the left side of glider cam 33 closes the extension in left side that cam 38 is positioned at counter-rotating handle 31 and closes more left side of projection 34, along with the rotation of counter-rotating handle 31 makes glider cam 33 press to left and glider cam 33 is slided towards the left side.So, counter-rotating handle 31 is swung to the left side, make the counter-rotating of counter-rotating spring 30 and make 24 counter-rotatings of switch gate, and make travelling contact 29 separate with fixed contact 25c and with fixed contact 25d state of contact under reverse.Afterwards,, promptly utilize the spring force of returning spring 37 to push back snap-fastener handle 32, make the key 43 with snap-fastener handle 32 butts also return back to original position in case remove the pressure act on key 43.Simultaneously, glider cam 33 is also slided by the spring force of spring leaf 33a and returns back to middle position.As once more pressure being acted on key 43, counter-rotating handle 31 is rotated.

Figure 10 (a) is the figure of molded component when illustrating in the manufacture process, and Figure 10 (b) is the A-A line profile of Figure 10 (a), and Figure 10 (c) is the B-B line profile of Figure 10 (a), and Figure 11 is the exploded perspective view of display unit.

Shown in Fig. 1 and Figure 10 (a), molded component 66 is integrally formed for the moulded parts 72 of the T word shape that will utilize resin and reed frame F one one in the time of display unit B6, and is made by the frame portion that cuts off reed frame F etc. and to have following shape.That is to say that involution has each part of 4 reeds 68,69,70,71 on moulded parts 72.

Reed 68 forms to have integratedly: protrude externally parallel with the foot 723 of moulded parts 72 from a side's of the head of moulded parts 72 end 721, contact the contact 67a of anter 18a arciform (with reference to Figure 10 (c)) to stop at anter 18a lateral bending song, extend along base portion 720 sides of head by moulded parts 72 from the base portion side of this contact 67a, and expose a part from it and become the connecting portion 681 of the plug ring 681a of resistance R 1 usefulness, and from the base portion side of contact 67a by extending to foot 723 sides the moulded parts 72, and expose a part and become the connecting portion 682 of the plug ring 682a of resistance R 2 from it.

Reed 69 forms to have integratedly: protrude externally parallel with the foot 723 of moulded parts 72 from the opposing party's of the head of moulded parts 72 end 722, contact the arciform contact 67b of anter 18a to stop at anter 18a lateral bending song, outstanding from the ear side of the opposing party's end 722 from the base portion side of this contact 67b towards the outside by moulded parts 72, leading section form the connecting portion 691 of the pressing terminal 691a (with reference to Figure 10 (b)) that position display lamp L1 uses and from the base portion side of contact 67b by extending to foot 723 moulded parts 72, and expose a part and become the connecting portion 692 of the plug ring 692a of resistance R 2 from it.

The ear side of the distolateral end 722 from the opposing party of reed 70 1 is outstanding towards the outside, and leading section forms the pressing terminal 70b that position display lamp L1 uses, and the ear side of another distolateral end 722 from the opposing party is by extending and expose a part to the base portion side of its head the moulded parts 72, and this part of exposing forms the plug ring shape that resistance is used.In addition, reed 71 under the state that does not contact any reed, the leading section involution of a part and the foot 723 of moulded parts 72.

Molded component 66, position display lamp L1 and resistance R 1, R2 (with reference to Figure 11) when preparing this structure, as shown in Figure 1, resistance R 1 and resistance R 2 are positioned in the precalculated position of moulded parts 72, and be connected with plug ring 681a, 70a (in Fig. 1 (a), being hidden) and plug ring 682a, 692a respectively at two ends by position display lamp L1, be connected with pressing terminal 691a, 70b as two ends, can obtain the display unit B6 of finished product position display lamp L1.In this case, make pressing terminal 691a, 70b side bend to the head of molded component 66 when making position display lamp L1 across plug ring.In addition, as previously mentioned, do not adopt resistance R 2 in the present embodiment.

More than, as adopting present embodiment, because in the thickness of the moulded parts 72 that resistance is housed, be provided with contact 67a, 67b, so can make when contact is connected printed base plate more slim.And because it is parallel that contact 67a, 67b are set as the foot 723 that makes with moulded parts 72, so can dwindle the width dimensions of molded component 66 simultaneously.

Yet though its contact of piano type fluorescent switch of present embodiment has the structure of 4 way switch, the present invention is not limited to this 4 way switch (switch of E contact type), and also can be 2 extremely singly to throw the switch of (so-called double cut or D contact type).

Claims (2)

1. piano type fluorescent switch comprises: the installing frame that the snap-fastener handle of the operation that will be pressed is located at the front and will makes the switching mechanism portion of the mutual counter-rotating of contact of switch be used for the baried type distributor according to the pressing operation of each snap-fastener handle is accommodated in the Switch main body of installable body; Be configured in the front face side of body and the key that an end pivot back side butt snap-fastener handle in body with shape with respect to the snap-fastener handle; The open side that described body is accommodated in the front openings housing of central portion with switching mechanism portion when terminal is accommodated in both ends and covers housing forms the lid of a part outstanding back opening towards the front of described snap-fastener handle; The back of housing is formed the central portion shape more outstanding than both sides; Described terminal by electrically contact that electric wire in the terminal board of switching mechanism portion and back that will be by being opened on housing inserts that electric wire that mouth inserts body remains on and terminal board between lock ingot spring constitute; Insert mouthful extending direction of the electric wire that inserts body at electric wire the part of terminal board be accommodated in terminal the body towards the side-prominent shape of lid with the opening surface from housing, it is characterized in that:

The terminal board of one sidepiece of described body is provided with 2; The place ahead at described 2 terminal boards is provided with display unit; Described display unit is made of position display lamp, resistance and while molded component; Described while molded component have integratedly T word shape moulded parts and a part by the 1st, 2,3 reeds of involution; Described the 1st reed has with forming as one: and arciform 1st contact that be in contact with it bent towards outside foot terminal board lateral bending outstanding abreast, a side at rear on the way with moulded parts from a square end portion of the head of moulded parts, from the base portion side of described the 1st contact by extending the connecting portion that makes a part is exposed, this exposes a part become the plug ring that resistance uses along the base portion side of its head the moulded parts; Described the 2nd reed forms to have: and arciform 2nd contact that be in contact with it bent towards outside foot terminal board lateral bending outstanding abreast, the opposing party at rear on the way with moulded parts from the opposing party end of the head of moulded parts, and, leading section outstanding towards the outside by the ear side from described the opposing party's end the moulded parts from the base portion side of described the 2nd contact forms the connecting portion of position display with the terminal of lamp; The ear side of the distolateral end from described the opposing party of described the 3rd reed one is outstanding towards the outside, leading section forms the terminal that the position display lamp is used, the ear side of another distolateral end from described the opposing party is by extending and expose a part towards the base portion side of its head the moulded parts, and this part of exposing forms the shape of the plug ring that resistance uses.

2. piano type fluorescent switch as claimed in claim 1 is characterized in that: having with described resistance is also to have the 2nd resistance outside the 1st resistance; Described the 1st reed also has integratedly from the base portion side of the 1st contact and extends and a part is exposed the connecting portion that becomes the plug ring that the 2nd resistance uses from this towards its foot side by moulded parts; Described the 2nd reed also has from the base portion side of the 2nd contact integratedly by extending and a part is exposed the connecting portion that becomes the plug ring that the 2nd resistance uses from this towards its foot side in the moulded parts.

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