CN1235248C

CN1235248C - Switch

Info

Publication number: CN1235248C
Application number: CN 02146271
Authority: CN
Inventors: 今井克哉; 川本哲靖; 金本直树
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2001-11-15
Filing date: 2002-10-17
Publication date: 2006-01-04
Anticipated expiration: 2022-10-17
Also published as: TW563152B; JP3890957B2; JP2003151402A; CN1420509A

Abstract

This invention provides a switch that can efficiently emit the light from its light source to the outside even if misalignment between its display surface and the light source exists. The switch body includes a main body 1 for receiving a contact device 40 etc., and a reverse acting handle 50 rockably pivoted at the front end of the main body 1. A prism 80 mounted on an operating handle 60 includes a displaying section 81 for emitting the light to the outside from the light source (namely a position displaying lamp 71), and a light collecting section 82 for guiding the light of the position displaying lamp 71 to a displaying surface 81a of the displaying section 81. The light collecting section 82 includes a first reflection surface 82b adjacent to an incident surface 82a for incident light from the position displaying lamp 71, and forming an angle of 45 degrees with the incident surface 82a, and a second reflection surface 82c which reflects the light reflected by the first reflection surface 82b to the displaying surface 81a side and which is of a flat shape parallel to the first reflection surface 82b.

Description

Switch

Invention field

The present invention relates to a kind of switch.

Background technology

From in the past, just provide the switch that has with the position display when being the position display lamp (for example, neon light etc.) of purpose and bright lamp or contact energising light emitting sources such as indicator light (for example, light-emitting diode etc.) that can bright lamp.

The operator of this kind switch is last, and having with the light ejaculation with light emitting source is the display member 68 of the section concavity shown in Figure 8 of purpose to the outside, on constituting, and 72 rears that are positioned at display member 68 of light emitting source.That is on constituting, display member 68 can be positioned at the place ahead of light emitting source 72.

Again, switch has various forms, for example, just providing a kind of has body, the switch of accommodating contact arrangement and is equipped on the counter-rotating handgrip of the contact arrangement on the body in the pivot joint mode that can freely swing and is covered in the counter-rotating handgrip positive and be incorporated into operator handle on the counter-rotating handgrip.In this kind switch, can utilize operator to make operating surface operation become more easy greater than the mode of counter-rotating handgrip area.

Yet, when light emitting source 72 being set and on the operator handle, display member 68 is set on the counter-rotating handgrip of aforesaid switch, can be with respect to light emitting source 72 and departs from towards the left and right directions of Fig. 8 in the position of display member 68, the photoconduction of light emitting source 72 can't be caused the display surface 68a of display member 68, and the problem that has display surface 68a that light can't transmission display member 68 to penetrate.

Summary of the invention

The present invention is in view of said circumstances, so purpose of the present invention is just providing a kind of switch, even the position deviation of light emitting source and display surface also can effectively make the switch of the light of light emitting source to the outside ejaculation.

In order to reach aforementioned purpose, feature of the present invention is to have: switch main body can be contained in contact arrangement in the body; Light emitting source is located in the switch main body; The operator handle is equipped on the face side of switch main body; And prism, have the light transmission display surface that can make light emitting source penetrate to outside display part and be positioned at switch main body and operator between and can be with the photoconduction of light emitting source light collecting portion to the display surface of display part; And light collecting portion has the light that light emitting source can be penetrated towards the 1st reflecting surface of the 2nd reflecting surface reflection and with the light of the 1st reflecting surface reflection the 2nd reflecting surface towards the display surface lateral reflection, even the position deviation of light emitting source and display surface, the light of light emitting source is reflected at the 1st reflecting surface of light collecting portion, reflect and be directed at the display surface of display part then at the 2nd reflecting surface again, and the light of light emitting source is effectively penetrated to outside.

In the present invention, the 1st reflecting surface that wherein makes this light collecting portion is adjacent with the plane of incidence of the light incident of light emitting source, and the angle between itself and the plane of incidence is 45 °, and the light of light emitting source is effectively penetrated to outside.

In the present invention, wherein the 2nd reflecting surface is parallel to the plane of the 1st reflecting surface, and the light of light emitting source is effectively penetrated to outside.

In the present invention, wherein in the setting perpendicular to the gauge of the direction of this plane of incidence of this light collecting portion, less than this display part width dimensions that utilizes on the catoptrical reflection direction of the 1st reflecting surface, and the optical axis of this display part relatively, the 2nd reflecting surface is formed at the opposition side of the 1st reflecting surface, even so this switch main body and this operator between the gap less, the light of light emitting source is effectively penetrated to outside, prevent to form on this display surface dark portion.

In the present invention, wherein the 2nd reflecting surface is stepped, and parallel the 1st reflecting surface of each cascaded surface is plane, so even and the gauge of this light collecting portion of this plane of incidence vertical direction less, the light of light emitting source is effectively penetrated to outside, prevent to form on this display surface dark portion.

In the present invention, wherein the 2nd reflecting surface has 3 these cascaded surfaces at least, and the light of light emitting source is effectively penetrated to outside.

Advantage of the present invention is:

Because have: switch main body can be contained in contact arrangement in the body; Light emitting source is located in the switch main body; The operator handle is equipped on the face side of switch main body; And prism, have the light transmission display surface that can make light emitting source penetrate to outside display part and be positioned at switch main body and operator between and can be with the photoconduction of light emitting source light collecting portion to the display surface of display part; And light collecting portion has the light that light emitting source can be penetrated towards the 1st reflecting surface of the 2nd reflecting surface reflection and with the light of the 1st reflecting surface reflection the 2nd reflecting surface towards the display surface lateral reflection, even the position deviation of light emitting source and display surface, the light of light emitting source is reflected at the 1st reflecting surface of light collecting portion, reflect and be directed at the display surface of display part then at the 2nd reflecting surface again, effectively penetrate to outside effect and have the light that makes light emitting source.

Because make the plane of incidence of light incident of the 1st reflecting surface system of this light collecting portion and light emitting source adjacent, and the angle between itself and the plane of incidence is 45 °, effectively penetrates the extremely effect of outside so have the light that can make light emitting source.

Because the 2nd reflecting surface is be parallel to the 1st reflecting surface plane, effectively penetrate to outside effect so have the light that can make light emitting source.

Because in the setting perpendicular to the gauge of the direction of this plane of incidence of this light collecting portion, less than this display part width dimensions on the reflection of light direction of utilizing the reflection of the 1st reflecting surface, and the optical axis of this display part relatively, the 2nd reflecting surface is formed at the opposition side of the 1st reflecting surface, even the crack is less between between former this switch main body and this operator handle, also have the light that can make light emitting source and effectively penetrate, and prevent to form on this display surface the effect of dark portion to outside.

Because the 2nd reflecting surface is stepped, and parallel the 1st reflecting surface of each cascaded surface is plane, even the gauge of this light collecting portion of event and this plane of incidence vertical direction is less, also has the light that can make light emitting source and effectively penetrate, and prevent to form on this display surface the effect of dark portion to the outside.

Because the 2nd reflecting surface has 3 these cascaded surfaces at least, effectively penetrate to outside effect so have the light that can make light emitting source.

Description of drawings

Fig. 1 is the profile that shows the embodiment of the invention;

Fig. 2 is (a) front elevation of showing the embodiment of the invention, (b) right hand view, and (c) bottom view;

Fig. 3 is the exploded perspective view of the embodiment of the invention;

Fig. 4 is the profile of the employed prism of the embodiment of the invention;

Fig. 5 is the profile of another configuration example of the employed prism of the embodiment of the invention;

Fig. 6 is the profile of another configuration example again of the employed prism of the embodiment of the invention;

Fig. 7 is (a) profile of a configuration example more again of the employed prism of the embodiment of the invention, and (b) is the significant points enlarged drawing of (a);

Fig. 8 is the significant points key diagram of example commonly used.

Symbol description among the figure:

1 body

40 contact arrangements

41a, the 41b fixed contact

42a, the 42b travelling contact

50 counter-rotating handgrips

60 operator handles

70 circuit substrates

71 position display lamps

72 light emitting sources

80 prisms

81 display parts

The 81a display surface

82 light collecting portion

The 82a plane of incidence

82b the 1st reflecting surface

82c the 2nd reflecting surface

Embodiment

Below among Shuo Ming the embodiment, be to be example, yet technological thought of the present invention also can be applicable on the switch of other formation with single-pole double throw type (so-called 3 way switch).

Fig. 1 has body 1 to switch shown in Figure 3,1 of this body have front (Fig. 1's is top) form opening rectangular-shaped forming synthetic resin product main body 10 and rectangular box-like and can and the protecgulum 20 of the forming synthetic resin product that combine of main body 10 face side.On the two horizontal lateral surfaces of main body 10, each is prominently establishing a pair of combination projection 11 with the longitudinal separation of

main body

10,21 end edges from protecgulum 20 of combination tongue piece extend towards the rear, utilization will be made up projection 11 and will be sticked in the combination bore 21a that is arranged on the combination tongue piece 21, can combining main body 10 and protecgulum 20.

Accommodating 3 arrangements of terminal 30b in the

main body

10,30c, 30d, and contact arrangement 40, these 3 arrangements of

terminal

30b, 30c, the electric wire insertion holes 12 that is linking the rear wall by being located at main body 10 on the 30d is inserted into the electric wire of body 1 (indicating on the figure), and 40 of this contact arrangements are used for switch terminal device 30b and arrangements of terminal 30c, the circuit between 30d.Again, on the openning 22 of the central portion of protecgulum 20, assembling the counter-rotating handgrip 50 of synthetic resin formed product in the pivot joint mode that can freely swing to protecgulum 20, contact arrangement 40 can be along with the swing of this counter-rotating handgrip 50 switch.The face side of counter-rotating handgrip 50 in the mode in the front that can load and unload and be overlapped in protecgulum 20 in conjunction with the operator of synthetic resin formed product 60, when operator was swung 60 as operating portion, counter-rotating handgrip 50 can be swung and the switch of execution contact arrangement 40.

The medial surface of main body 10, form respectively a plurality of with decision arrangements of

terminal

30b, 30c, the position of 30d and contact arrangement 40 is the fixing rib 13 of purpose, and holddown groove 14.Arrangements of terminal 30b is disposed in the end longitudinally of main body 10, and arrangements of terminal 30c, 30d then are disposed in the other end longitudinally of main body 10, and 40 of contact arrangements are disposed in the central portion longitudinally of main body 10.

Arrangements of terminal 30b has 32,2 late springs 33 of terminal board that utilize the formation of conductive metal plate and the disengage button 34 that is connected to the synthetic resin formed product of 2 late springs 33.Terminal board 32 is positioned near the end longitudinally of main body 10, have main leaf 32a, butt sheet 32b, reach link piece 3c, the both sides of this main leaf 32a are inserted and are fixed on the holddown groove 14 of horizontal two medial surfaces of being located at main body 10, this butt sheet 32b is then relative with main leaf 32a, and this link piece 32c is then so that main leaf 32a and butt sheet 32b link the opening surface extension of all-in-one-piece mode along main body 10.Butt sheet 32b can be connected to the fixing rib 13 that forms on horizontal two medial surfaces of main body 10 near the central portion longitudinally of main body 10, terminal board 32 can be fixed in 14 of the fixing rib 13 of main body 10 and holddown grooves.Late spring 33 is positioned between main leaf 32a and butt sheet 32b.On the terminal board 32, along the inner bottom surface extension mode of main body 10 supporting pieces 32d is being set with central portion longitudinally from the end edge of butt sheet 32b towards main body 10, the leading section of supporting pieces 32d, can form the fulcrum groove 32e of the positive V-shaped section of opening with the form vertical with the bearing of trend of supporting pieces 32d.

Arrangements of terminal 30c, 30d have terminal board 45,46 respectively, each terminal board 45,46 are provided with the main leaf 45a that is connecting the electric wire that the electric wire insertion holes 12 of passing through body 1 imports, and 46a, are connected to the butt sheet 45b of the fixing rib 13 of main body 10 respectively, 46b, link main leaf 45a, 46a and butt sheet 45b, link piece 45c between 46b, 46c and from brace 45c, 46c begin that one is extended continuously and leading section is provided with fixed contact 41a respectively, the contact stator 45d of 41b, 46d.Two-terminal device 30c, the contact stator 45d of 30d, the leading section of 46d are that fixed contact 41a, 41b also are relative with the relative mode configuration.

Arrangements of terminal 30c, 30d are disposed at the same side longitudinally (left side of Fig. 2) of main body 10, and each terminal board 45,46 is respectively being accommodated 1 late spring 33.Again, 33 of the late springs of two ends daughter board 45,46 are then disposing 1 disengage button 34.

In the formation of late spring 33, be that the end bent with the flat spring of band shape becomes the S shape and forms contact chip 33a, the other end bent to the J-shaped shape and forms latch piece 33b, and utilize link piece 33c that contact chip 33a and locking plate 33b are connected to one.Again, with respect to brace 33c, contact chip 33a and latch piece 33b can be outstanding towards the same side of thickness direction.Late spring 33 is assemblied in

terminal board

32,45,46 main leaf 32a, 45a, 46a and

butt sheet

32b, 45b, in the time of between the 46b, link piece 33c should be connected to

butt sheet

32b, 45b, 46b, contact chip 33a and latch piece 35b then should with main leaf 32a, 45a, 46a is relative.At this moment, the leading section of contact chip 33a and latch piece 33b, can heal and tilt towards the direction that departs from link piece 33c in the position of its front end of healing, and extend in unanimity mode parallel to each other.Again, in the configuration of the leading section of contact chip 33 and latch piece 33b, during more near front, itself and

link piece

32c, 45c, the distance of 46c can be littler.

The formation position of aforesaid electric wire insertion holes 12 can be corresponding to

terminal board

32,45,46 main leaf 32a, 45a, 46 and contact chip 33a and latch piece 33b between, when electric wire inserted in the bodies 1 by electric wire insertion holes 12, the leading section of electric wire was understood clip in main leaf 32a, 45a, between 46a and contact chip 33a and the latch piece 33b, electric wire contact main leaf 32a, 45a, 46a, and make arrangements of

terminal

30b, and 30c, 30d and electric wire form and are electrical connected, and the leading section of latch piece 33b can be engaged in electric wire, and electric wire is to be subjected to that mechanical type is fixed and can't to break away from from body 1.Especially latch piece 33b is on the direction of the electric wire that inserts by electric wire insertion holes 12, can be to tilt and shortens itself and main leaf 32a, 45a, the distance of 46a, so with respect to the strength on the direction of pulling out electric wire, latch piece 33b is difficult for producing distortion, and can stop electric wire to break away from really.Again, electric wire is insulation-coated electric wire, so the position in the insertion body 1 should be removed insulation-coated and heart yearn is exposed.Therefore, clip is in main leaf 32a, 45a, and the electric wire between 46a and the latch piece 33b in fact then is a heart yearn.Be used in aforesaid arrangements of

terminal

30b, 30c again,, on the formation of the

terminal board

32,45,46 on the 30d, can corresponding heart yearn be the electric wire of twisted wire also, when heart yearn is the electric wire of twisted wire, also be to need only the electric wire insertion holes 12 that electric wire is inserted on the body 1 can implement the tie lines operation.

On the rear wall of main body 10, on the position of corresponding disengage button 34, providing handle hole 15.The disengage button 34 on Fig. 1 right side is disposed at 33 of the late springs of the late spring 33 of 33 of 2 late springs on the arrangements of terminal 30b and arrangements of terminal 30c and arrangements of terminal 30d respectively, and it in shape, and 2 compressing tablet 34a that are connected to the latch piece 33b rear side of adjacent 2 late springs 33 respectively can give prominence to from the side.The shape of handle hole 15, the insertable shape of instrument for the leading section of similar flathead screwdriver, insert instrument in the handle hole 15 and with disengage button 34 towards the place ahead pushing, latch piece 33b can be because the pushing force of bearing from compressing tablet 34a and towards the direction distortion that departs from main leaf 32a.Therefore, as described in the front, electric wire is linked under the state of arrangements of terminal 30b, as long as the handle hole 15 that instrument is inserted arrangements of terminal 30b side can push disengage button 34, latch piece 33b can remove the mechanical fixation of electric wire towards the direction distortion that departs from electric wire, and can pull out electric wire from body 1.Disengage button 34 is provided with 2 compressing tablet 34a, because the latch piece 33b of 2 late springs 33 on the arrangements of terminal 30b is located in pushing simultaneously, if connecting 2 electric wires on the arrangements of terminal 30b, then as long as 1 disengage button 34 of pushing can be removed the mechanical fixation of 2 electric wires simultaneously.Same, arrangements of terminal 30c, 30d is connecting respectively under the state of electric wire, as long as instrument is inserted arrangements of terminal 30c, the handle hole 15 of 30d can push disengage button 34, latch piece 33b promptly can extract each electric wire towards the mechanical fixation of direction distortion that departs from electric wire and releasing electric wire from body 1.

Contact arrangement 40 has the tabular switch element 43 of the supporting pieces 32d pivot joint that utilizes terminal board 32, the two sides of the thickness direction of switch element 43 then has travelling contact 42a, 42b, each travelling contact 42a, 42b can optionally contact each fixed contact 41a, 41b along with the rotation of switch element 43.That is during the travelling contact 42a contact fixed contact 41a, travelling contact 42b and fixed contact 41b be for separating, and work as travelling contact 42b contact fixed contact 41b during, travelling contact 42a and fixed contact 41a are for separating.The end edge of switch element 43 is inserted in the fulcrum that forms groove 32e on supporting pieces 32d, switch element 43 can fulcrum be that rotate at the center with groove 32e.On main body 10 rear portions of vertical central portion of main body 10, can form V-arrangement and rotate regulation groove 16, the tab 43a that is based in switch element 43 lateral margins can insert in this rotation regulation groove 16, the slewing area of utilizing this rotation regulation groove 16 to come regulation switch element 43.

Switch element

43 and 50 counter-rotating springs of fixing to constitute 44 of counter-rotating handgrip by coil spring, the then prominent spring seat slice 43b that establishing on the leading section of switch element 43, this spring base sector-meeting is inserted in the end of counter-rotating spring 44.

The tube portion (not indicating on the figure) of the rear side of being located at counter-rotating handgrip 50 is then inserted in the other end of counter-rotating spring 44.Dash forward and establishing fulcrum projection 51 in the two sides of the counter-rotating handgrip 50 transversely of body 1, the shape of each fulcrum projection 51 is all the thinner shape of front end.The both lateral sides face of vertical central portion of protecgulum 20, the then prominent 1 pair of bearing tab 23 giving prominence to towards the place ahead from openning 22 edges of establishing on the opposite face of two bearings tab 23, then can be formed with the bearing recess 24 of fulcrum projection 51 insertions of counter-rotating handgrip 50.The mode that bearing recess 24 can be swung with leading section at least is articulated in fulcrum projection 51.Vertical the other end of counter-rotating handgrip 50, the light that is providing to see through from aftermentioned position display lamp 71 is purpose open-work 52, again, on vertical both ends of the surface of counter-rotating handgrip 50, then prominent respectively to establish so that operator is incorporated into the handgrip 50 that reverses to 60 be the engagement pawl 53 of purpose.

Again, on vertical both ends of protecgulum 20, prominent respectively establishing along the both ends lateral margin of protecgulum 20 and from the outstanding interference ribs 25 in the front of protecgulum 20, each is prominently establishing 1 pair of assembling pawl 26 lateral surface of each interference ribs 25.Be not elaborated herein, assemble the purpose that is provided with of pawl 26, utilize exactly and be sticked in distributor and body 1 be fixed on the assembling frame with the pilot hole of assembling frame, when implementing that partly body 1 is imbedded the construction of construction surface such as wall, body 1 is installed in the more easy of the assembling frame that is fixed in construction surface in conjunction with the operation meeting.Again, when body 1 was assemblied in assembling frame, interference ribs 25 can be connected to the rear side of assembling frame.Operator is disposed at 60 between two interference ribs 25, and on the formation, operator can't form 60 with interference ribs 25 when swinging interferes.In the prominent mode of establishing interference ribs 25 and assembling pawl 26 being set on interference ribs 25 on the protecgulum 20, do not compare when establishing interference ribs 25, operator is 60 positions that can be positioned at than the rear, and with the construction state, the crack is difficult for seeing from the outside between protecgulum 20 and operator are 60 formation.

Operator is covered in the front of counter-rotating handgrip 50 60 as shown in Figure 1, and operator is being established in conjunction with pin 61 60 the back side is then prominent, and this can be sticked in engagement pawl 53 on the handgrip 50 that reverses in conjunction with pin 61.Can form the claw 61a at the back side that is sticked in engagement pawl 53 in conjunction with the leading section (rearward end) of pin 61, counter-rotating handgrip 50 can be fixed in and be based in operator between the pressing plate projection 62 and claw 61a at 60 the back side, as a result, operator is fixed in 60 on the counter-rotating handgrip 50.Again, can to install a vertical end of 60 with photoconduction to the outside with position display lamp 71 be the prism 80 of purpose to operator.

Again, operator is on 60 the end, can cover the line plate 65 of adorning band plate-like on the mounting groove 64 along operator 60 horizontal formation mounting groove 64.Provide elongated light inlet window 64a on the diapire of the vertically rough central portion of mounting groove 64, be located at 81 slotting the leading on light inlet window 64a of display part on the prism 80.Line plate 65 is a synthetic resin system, can form open display aperture 66 on the position of corresponding light inlet window 64a, and the display part 81 of prism 80 can be flush-mounted in display aperture 66 to 60 rear side from operator.The leading section of display part 81 can be outstanding 60 front from operator through the display aperture 66 of line plate 65.The section of the leading section of display part 81 is a semicircle shape.Again, the width of the position 81b that is positioned at light inlet window 64a of display part 81 can be greater than other position (being positioned at the position of display aperture 66).

Prism 80 is moulding product of lucite, with the one mode have be positioned at operator 60 rear side and the photoconduction of position display lamp 71 can be caused display part 81 leading sections display surface 814a light collecting portion 82 and be 60 the rectangular plate shape department of assembly 83 of purpose 60 rear side is assemblied in operator with it from operator.In the department of assembly 83 circular open is arranged, and providing diminishing pilot hole 83a, utilize from operator prominent towards the rear fixing leading to projection 83a slotting of establishing of 60 the back side is fixed in operator 60 rear side from face side towards the rear side internal diameter.Again, the shape of prism 80 will describe in the back side.

Circuit substrate 70 is fixed on the rearward end of counter-rotating handgrip 50.The position display lamp 71 that is made of neon light, the current limliting resistance (indicating on the figure) that reaches position display lamp 71 are installed on the circuit substrate 70.What the central portion of circuit substrate 70 can form circular open is pressed into hole 74, and the tube portion that is located at counter-rotating handgrip 50 is pressed in the hole 74, can make circuit substrate 70 be fixed in the handgrip 50 that reverses.Under this state, the open-work 52 by counter-rotating handgrip 50 is with the mode allocation position display lamp 71 relative with prism 80.

Again, contact 47 riveted and fixed that are made of the conductive metal plate are in the link piece 45c of each terminal board 45,46, on the 46c.The mode that is connected to circuit substrate 70 with bullet makes contact 47 have elasticity, make contact 47 can not be subjected to reversing handgrip 50 swing influence and at any time bullet be connected to circuit substrate 70.With series system position display lamp 71 and resistance (not indicating on the figure) are installed on the circuit substrate 70, contact 47 contacts each end of this series circuit respectively.This kind 3 way switch be normally used for stair light bright lamp, turn off the light, upstairs reach and dispose 3 way switch downstairs respectively, upstairs reach and all can operate the bright lamp of stair light downstairs and turn off the light.Therefore, at two fixed contact 41a, the series circuit of insertion position display lamp 71 and resistance between 41b, position display lamp 71 can bright lamp when stair light is turned off the light.Because the annexation of this kind circuit has been well known, its explanation of Therefore, omited.

The words of the action of simple declaration aforementioned switches, then as shown in Figure 1, when operator is positioned at more rear (below on the figure) to 60 right part than the left part, travelling contact 42a can contact fixed contact 41a, under this state, the state that counter-rotating spring 44 portion that can mediate bloats towards the left side than both ends, counter-rotating spring 44 can provide presses travelling contact 42a pushing to the contact of fixed contact 41a.Under this state, operator is pressed 60 left part towards the rear, the leading section of counter-rotating spring 44 can move towards the right side, counter-rotating spring 44 can stretch after being compressed rapidly, and the state that the portion that mediates bloats more to the right than both ends, at this moment, switch element 43 can be swung to the right side, and make travelling contact 42a leave fixed contact 41a, and make travelling contact 42b contact fixed contact 41b.

Again, in the present embodiment, light emitting source 72 (with reference to Fig. 4) is made of position display lamp 71, and light emitting source 72 also can be the indicator light that illustrates in the conventional example.Again, in the present embodiment, be accommodating arrangements of

terminal

30b, 30c, the body 1 of 30d and contact arrangement 40 and constitute switch main body with the counter-rotating handgrip 50 that the pivot joint mode that can freely swing is assemblied in the face side of body 1.

Yet, aforementioned prism 80 and light emitting source 72 (position display lamp 71) have position relation shown in Figure 4, as described in the front, prism 80 have be positioned at operator on 60 and can make the light of light emitting source 72 penetrate to outside display part 81 and be positioned at switch main body and operator 60 and can be with the photoconduction of light emitting source 72 light collecting portion 82 to the display surface 81a of display part 81.Light collecting portion 82 has: the angle between the 1st reflecting surface 82b and come the plane plane of incidence 82a of light institute incident of self-emitting light source 72 adjacent, itself and plane of incidence 82a is 45 °; And with the light of the 1st reflecting surface 82b reflection the 2nd reflecting surface 82c towards display surface 81a lateral reflection.At this moment, in the setting perpendicular to the gauge H1 of the direction of this plane of incidence 82a of light collecting portion 82, less than this display part 81 width dimensions H2 on the reflection of light direction (right of Fig. 4) of utilizing the 1st reflecting surface 82b reflection, and the optical axis X of this display part 81 relatively, the 2nd reflecting surface 82c is formed at the opposition side of the 1st reflecting surface 82b.Again, the 2nd reflecting surface 82c is parallel with the 1st reflecting surface 82b plane.

Again, even the position of the display surface 81a of light emitting source 72 and display part 81 produce at the left and right directions of Fig. 4 and depart from (that is, even light emitting source 72 is not positioned on the extended line of optical axis X of display part 81), the light that also can make light emitting source 72 is that 45 ° the 1st reflecting surface 82b reflects at the angle with the plane of incidence 82a of light collecting portion 82, reflect and be directed at the display surface 81a of display part 81 then at the 2nd reflecting surface 82c again, and the light of light emitting source 72 is effectively penetrated to outside.Again, in the setting perpendicular to the gauge H1 of the direction of this plane of incidence 82a of light collecting portion 82, less than this display part 81 width dimensions H2 on the reflection of light direction of utilizing the 1st reflecting surface 82b reflection, and the optical axis X of this display part 81 relatively, the 2nd reflecting surface 82c is formed at the opposition side of the 1st reflecting surface 82b, again, the 2nd reflecting surface 82c is parallel with the 1st reflecting surface 82b plane, so even switch main body and operator are less crack between 60, the light of light emitting source 72 is effectively penetrated to outside, and prevent that display surface 81a from upward forming dark portion.

Again, prism 80 shown in Figure 4, system is set at itself and gauge H1 perpendicular to the direction of plane of incidence 82a, the width dimensions H2 of the display part 81 on the reflection of light direction that Billy is reflected with the 1st reflecting surface 82b is littler, but also can be as shown in Figure 5, prism 80 set for the shape of H1＞H2 all can.At this moment, in the prism 80 shown in Figure 5, at the 2nd reflecting surface 82c is that it is identical being parallel on the plane point of the 1st reflecting surface 82b, but optical axis X with respect to display part 81, because the formation of the 2nd reflecting surface 82c is to extend to opposition side from the 1st reflecting surface 82b, and the light of light emitting source 72 is effectively penetrated to outside.

Again, prism 80 also can be the shape of Figure 6 and Figure 7.The shape of the prism 80 of Figure 6 and Figure 7 is identical generally with the shape of prism 80 shown in Figure 4, the 2nd reflecting surface 82c is stepped, and the 2nd reflecting surface 82c is parallel with the 1st reflecting surface 82b plane, X-axis with respect to display part 81, be to extend to opposition side, have only this point inequality from the 1st reflecting surface 82b.Adopt the prism 80 of the shape of Figure 6 and Figure 7, identical with prism 80 shown in Figure 4, though the gauge of the light collecting portion 82 on the vertical direction of plane of incidence 82a is less, the light of light emitting source 72 is effectively penetrated to outside, and can prevent that display surface 81a from forming dark portion.The 2nd reflecting surface 82c of the prism 80 of Fig. 6 has 2 cascaded surface 82d, the 2nd reflecting surface 82c of the prism 80 of Fig. 7 has 5 cascaded surface 82d, the prism 80 of Fig. 7 can more effectively penetrate the light of light emitting source 72 to outside than the prism 80 of Fig. 6, yet, cascaded surface 82d number is more after a little while than easy-formation, so as long as cascaded surface 82d more than 2 is arranged.

Claims

1, a kind of switch is characterized in that, has:

Switch main body can be contained in contact arrangement in its body;

Light emitting source is located in the switch main body;

The operator handle is equipped on the face side of switch main body; And

Prism, have the light transmission display surface that can make light emitting source penetrate to outside display part and be positioned at switch main body and operator between and can be with the photoconduction of light emitting source light collecting portion to the display surface of display part; And

Light collecting portion has the light that light emitting source can be penetrated towards the 1st reflecting surface of the 2nd reflecting surface reflection and with the light of the 1st reflecting surface reflection the 2nd reflecting surface towards the display surface lateral reflection.

2, switch as claimed in claim 1 is characterized in that, the plane of incidence of the 1st reflecting surface of this light collecting portion and the light incident of light emitting source is adjacent, and and the plane of incidence between angle at 45.

3, switch as claimed in claim 1 or 2 is characterized in that, the 2nd reflecting surface is be parallel to the 1st reflecting surface plane.

4, switch as claimed in claim 3, it is characterized in that, the gauge perpendicular to the direction of this plane of incidence of this light collecting portion, be set at less than along width dimensions, and the 2nd reflecting surface is formed at the opposition side that the optical axis of this display part relatively is positioned at the 1st reflecting surface by this display part on the catoptrical reflection direction of the 1st reflecting surface.

5, switch as claimed in claim 1 or 2 is characterized in that, the 2nd reflecting surface forms stepped, and each cascaded surface is into the plane of parallel the 1st reflecting surface.

6, switch as claimed in claim 5 is characterized in that, the 2nd reflecting surface has 3 these cascaded surfaces at least.