JPH02148635A - Switch - Google Patents

Abstract

PURPOSE:To omit a process of solder bonding and improve the assembling operability by forming a cable way on at least one electrode side of a feeding electric circuit of a luminescent display element by a coil spring, and pressing and holding a circuit base to which the luminescent display element is connected to an operating element. CONSTITUTION:A circuit base 30 disposed on the inner side of an operating element 36 is pressed and held by a coil spring 43 fitted to an operating shaft 41 protruded from the operating element 36, and an engaging shaft 41 engaged in contact with a movable piece and the wiring pattern of the circuit base 30 are connected to one electrode side of an electric circuit feeding to a luminescent element 31 by a coil spring 43. In the assembling, the spring 43 is fitted to the operating shaft 41, and the engaging shaft 45 is inserted into a long hole 44 formed on the operating shaft 41 to hold the spring 43 and prevent the falling. Hence, the circuit base can be fixed and held to the operating element without using any means, the feeding circuit of the luminescent display element can be formed by the spring, which requires no process such as soldering, the structure is simple, and the assembling operability can be improved.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a switch, for example, a tumbler switch, in which a movable piece that opens and opens a contact is inverted and swung by the operation of an operator such as a tumbler switch. The present invention relates to a switch in which the swinging state of a movable piece is maintained by a coil spring, and relates to a switch equipped with a light emitting display element that blinks in accordance with the RMM of the switch.

(Prior art) Conventionally, this type of switch was manufactured by, for example, the Japanese Utility Model Publication No.
As described in Publication No. 5, a pair of coil-shaped springs are stretched between an operator supported so as to be able to swing in reverse and a movable piece provided with a movable contact, and when the operator swings, In a structure in which a pair of movable pieces are inverted and swung through each spring to open and close contacts, an indicator lamp and a resistor are connected in series to a circuit board fitted to an operator, and the lamp and resistor are connected in series. A structure was adopted in which electricity was supplied by contacting the coil spring with a lead wire. In this structure, the lamp and resistor are fitted to the operator and connected to the circuit board, and the lead wires of the lamp and resistor are brought into contact with a coiled spring whose one end is fitted to the operator, and the movable piece, spring,
A structure is adopted to form an electric path to the lamp and circuit board.

(Problems to be Solved by the Invention) In the switch having the structure described in Kamimunjitsu Publication No. 61-11865, the circuit board is only fitted to the operator, and the lead wire of the lamp is only brought into contact with the spring. , the circuit 1j13 is easily moved due to vibrations, etc., and the contact between the lead wire and the spring becomes unstable, requiring some kind of fixing means to the circuit board, and it is necessary to maintain the connection between the lead wire and the spring with solder, etc. Also, the springs could not be easily assembled, resulting in poor assembly.

The present invention was made in view of the above-mentioned problems, and uses a coiled spring to form an electric path on at least one pole side of an electric circuit that supplies power to a light-emitting display element, and also presses a circuit board to which the light-emitting display element is connected to an operator. Try to hold it,
The present invention provides a switch that can eliminate processes such as soldering and improve assembly workability.

[Structure of the invention]

(Means for Solving the Problems) The switch of the present invention includes a terminal C provided with a fixed contact, a movable piece capable of reversing and swinging, and a movable piece provided with a movable contact that contacts and separates from the fixed contact, and a movable piece that is swingably supported. an operator for reversing and swinging the movable piece; a coiled spring stretched between the operator and the movable vJ piece to maintain the swinging state of the movable piece; and a coil spring provided on the operator. In the switch, the coil spring is formed of a conductive bamboo material, and the coil spring is formed of a conductive bamboo material, and the coil spring is made of a conductive bamboo material, has a protruding operating shaft formed in a long hole along the axial direction at the tip,
The conductive engagement shaft inserted into the long hole of the operating shaft locks the tip of the coiled spring fitted to the operating shaft, and the circuit board disposed on the inner surface of the operating element is connected to the conductive engagement shaft inserted into the long hole of the operating shaft. A coil spring fitted to the operating shaft presses and holds the circuit Ml against the inner surface of the circuit Ml, and the coil spring connects the engagement shaft contactingly engaged with the movable piece and the wiring pattern of the circuit board to at least the light emitting element. It is characterized by electrically connecting one pole side of the electric circuit to which power is supplied.

(Function) When assembling the switch of the present invention, a light-emitting display element is connected to the inner surface of the operating element, a coil-shaped spring is fitted to the operating shaft, and the engaging shaft is inserted into the elongated hole formed in the operating shaft. When the spring is held on the operation shaft without being pulled out, and this engagement shaft is engaged with the movable piece that is supported so as to be able to swing, the movable piece can be reversed by operating the operator, and the IJJ piece is attached to the spring. At the same time, at least one pole of an electric circuit that supplies power to the light emitting display element is formed.

(Embodiment) Next, the configuration of an embodiment of the present invention will be described with reference to FIGS. 1 and 2.

The switch body 10 is composed of a container body 11 and a lid body 12 made of insulating synthetic resin, and terminal storage portions 13 and 14 are defined at both ends of the container body 11. Wire insertion holes 15 are formed on the left and right sides of the bottom of the container 11, respectively, and face the terminal storage portions 13 and 14, respectively.

A pair of fixed terminal pieces 16.17 are housed in the terminal housing portions 13.14 of the container body 11 on the left and right sides, respectively.

Each of these fixed terminal pieces 16 and 17 has a self-locking piece 1.
8 is included. Fixed contact pieces 19 and 20 extending toward the terminal storage area 14 on the other side are respectively extended to the terminal pieces 16 arranged in parallel to the terminal storage area 13 on one side. is arranged at the inner bottom of the vessel body 11, and the other 7J fixed contact pieces 20 are located at the upper part, and fixed contacts 21 and 22 are provided at the tips of both fixed contact pieces 19 and 20, respectively.
is installed.

In addition, the terminal piece 16.16 on one side and the terminal piece 1 on the other side
A pair of terminal pieces 23 are disposed on the left and right sides of the inner bottom of the vessel body 11 between the two terminal pieces 7 and connected to the pair of terminal pieces 17 on the other side, respectively. The pair of terminal pieces 23 have recessed portions 24 that are bent upwardly and laterally. Also, the recesses 2 for both terminal pieces 23 are
4, the lower end portions of fulcrum portions 26 protruding downward from one ends of movable pieces 25 made of conductive metal plates disposed substantially horizontally at the bottom of the vessel body 11 are respectively capable of inverting and swinging. Supported. At the other ends of both rotating pieces 25, movable contacts 27 are provided which respectively come into contact with and separate from the fixed contacts 21 and 22. Also, both rotating pieces 25
Engagement piece portions 28 bent upward are formed on both side edges, and engagement portions 29 cut out in a concave arc shape are provided on the upper edges of each of the engagement piece portions 28, respectively.

Reference numeral 30 denotes a printed wiring circuit board, to which a light emitting display element such as a neon lamp 31, a resistor, a diode, etc. are connected to the upper surface, and a terminal portion is formed in the wiring pattern formed on the lower surface.

In addition, a lid body 12 is attached to the opening on the upper surface of the solid body 11 using a metal member (not shown), and operation window holes 32 are formed on both sides of the upper surface of the body 12. Approximately triangular protrusions 33 are formed in the middle portions of the holes 32, and each of the protrusions 33 forms a light transmitting portion 34. Further, the central part of the inner surface of this lid body 12 is formed by the protrusion 3.
3, a substantially concave 7-shaped bearing portion 35 is formed.

Next, reference numeral 36 denotes an operator, which is placed between the circuit board 30 and the lid 12, and has an opening 37 in the center for arranging the neon lamp 31. A substantially triangular shaft support 38 is formed to swingably engage the bearing portion 35 of the body 12 .

Further, this operator 36 is provided with cover mounting protrusions 39 located at both ends of the 11 openings 37 of the utility body 12 and protruding upwardly and outwardly from the operation window hole 32 of the lid body 12. For mounting, a recess 40 is formed in the protrusion rJ539 for mounting the cover. Further, on the left and right sides of the substantially central portion of the operator 36 on one side, operations @ 41 are integrally provided so as to protrude in an inclined direction. The upper surface of the circuit board 30 is in contact with the inner surface of the operator 36, and the neon lamp 31 connected to the circuit board 30 is opposed to the light transmitting portion 34 of the lid 12. Note that notches 42 are formed on both side edges of the circuit board 30 to engage the operating shaft 41. Conductive coil springs 43 are fitted onto both operating shafts 41 of the operating element 36, and the upper ends of these springs 43 are connected to the lower surface wiring of the circuit board 30 which is in contact with the lower surface of the operating element 36. The circuit board 130 is pressed and held against the lower surface of the operator 36 by contacting the terminal portions of the pattern, respectively. Further, a long hole 44 is provided along the axial direction at the lower end of both operating shafts 41 of the operating element 36, and an engagement @45 is inserted into each of the long holes 44. The other lower end of the spring 43 is held and not handled. Further, this engagement shaft 45 is brought into engagement contact with an engagement portion 29 formed on the upper edge of the engagement piece portion 28 of the flexible lj piece 25,
The pair of rotating pieces 25, the engagement shaft 45, the spring 43, and the circuit board 30 form an electric path connected to the neon lamp. and the operator 36G
Both the springs 43 cause the shaft support 38 to move toward the vessel body 12.
At the same time, the engagement shaft 45 is engaged with the engagement part 29 of the movable piece 25, so that the operator 36 is swingably supported. 25
[It is designed to be rotated upside down.

Reference numeral 46 designates a cover for the operator 36, and the engaging legs 47 protruding from the inner surface of the cover 46 protrude from the operation window hole 32 of the lvJ recorder 12. The cover 46 is engaged with the recess 40 and held elastically.A window hole 48 is formed in this cover 46 facing the light transmitting part 34 of the operator 3G, and this window IL48
A light-transmitting member 49 such as a lens is fitted and fixed to.

Next, the operation of this embodiment will be explained.

First, the assembly will be explained.

The pair of fixed terminal pieces 16 and 17 are assembled into the container body 11, as well as the terminal piece 23, and then both rotating pieces 2 are assembled.
The fulcrum pieces 26 of 5 are each connected to the recess 24 for receiving the terminal piece 23.
to engage. Next, the circuit board 30 in which the operating rings 41 and the sparking portions 42 are respectively engaged is brought into contact with the inner surface of the operating element 3G, and the springs 43 are respectively fitted in both operating rings 41 of this operating element 36, and both operating rings 41 are fitted with springs 43, respectively. An engaging shaft 45 is inserted into each of the elongated holes 44 of 41, and the spring 43 is handled and locked by the engaging shaft 45. In this state, each spring 4
3 is the circuit board l! 1430 is pressed and held on the inner surface of the operator 36, and each engagement shaft 45, spring 43, and circuit board 3
An electric path with a wiring pattern of 0 is formed. Also, the operator 36
A neon lamp 31 is disposed in the opening 37 of. Then, the operator 36 is fitted into the container body 11, and both engaging shafts 45 are respectively engaged with the engaging portions 29 on the upper edges of the engaging piece portions 28 formed on each movable piece 25. In this state, the operator 36 is connected to both engagement shafts 45
is engaged with the engaging portion 29 of the movable piece 25, so that the operator 36 is swingably supported, and the engaging shaft 45 is engaged with the engaging portion 29 of the movable piece 25.
are electrically connected to each other. Next, the vessel body 11
When the lid body 12 is attached to the
8 is brought into contact with the bearing part 35 of the lid body 12 and covers the upper surface opening of the container body 11, and when the cover of the operator 36 is attached from the operation window hole 32 of the lid body 12, the protrusion 39 protrudes, and this cover To install the cover on the protrusion 39, attach the cover 46 to the fourth part 40.
The cover 46 is attached to the operator 36 by engaging the legs 47.

In addition, when opening/closing the operation, when the protruding side of the cover 46 of the operator 36 is pressed, the operator 36 moves to the shaft supports 38 on both sides.
is engaged with the bearing portion 35 of the lid body 12, and rotates stably and reliably, and while compressing the spring 43 fitted to the friction member 1111145, the engagement shaft 45 moves between both rotating pieces 25.
When both rotating pieces 25 are swung by engaging with the engaging part 29 on the upper edge of the engaging part 28 formed in When engaged with the concave portions 24, each moves by 1, for example, the movable point 2 of one of both rotating pieces 25
7 is connected to the fixed contact 22, and the movable contact 27 of the other two rotating pieces 25 is separated from the fixed contact 21.

At this time, the operator 36 is tilted to the opposite side, the spring 43 is extended, and the movable piece 25 is held in an inverted state. When the load connected to this switch, for example, a lighting fixture, is turned off, the neon lamp 31 is connected to the fixed terminal 16 on one side, the movable piece 25, the engagement shaft 45, the spring 43, and the circuit board. 30, neon lamp 31, circuit board 30, spring 43 on the other side, engagement shaft 45, movable piece 25, terminal piece 23, and fixed terminal piece 1
It is powered by the electric circuit No. 7 and lights up, indicating that the load is in the A-off state.

In addition to the neon lamp 31, a neon lamp or a light emitting diode with a different emission color may be provided to indicate that the load is in operation even when the load is in operation.

Further, in the embodiment described above, the operation element 36 has the #ii structure in which the operation shafts 41 are integrally provided on the left and right sides of the lower surface approximately in the center in a downwardly inclined manner, but as shown in FIGS. As expected, the operator 36 may have a structure in which operating shafts 41 are integrally provided on the left and right sides of one end of the lower surface, respectively, protruding vertically downward.

Further, in the above embodiment, a four-way, double-off switch has been described with a structure in which a pair of operating shafts 41 are integrally provided on the left and right sides of the lower surface substantially in the center of the operator 36, but the switch is limited to this structure. For example, as shown in FIG. 5, the operator 36 is provided with one operating shaft 41 integrally protruding downward from approximately the center of the lower surface, and this operating shaft is provided. The circuit board 30 having a fitting hole 50 into which the shaft 41 can be fitted is brought into contact with the inner surface of the operating r36, and the upper end of the coiled spring 43 fitted to the operating shaft 41 is placed on the lower surface of the circuit board 530. It is also possible to have a structure in which the lower end of the spring 43 is brought into contact with the terminal portion of the formed wiring pattern, and the lower end of the spring 43 is brought into contact with a conductive receiver 51 swingably provided at the upper end of the movable piece 25. Further, the circuit board 30
A terminal portion of a wiring bag that is connected to and separated from the fixed terminal piece 16 is formed on the lower surface of the terminal.

Therefore, in this structure, when the operator 36 is reversed, the movable piece 25
is reversed so that the movable contact 27 comes into contact with the fixed contact piece 21 of the fixed terminal piece 16, and the terminal portion of the wiring pattern of the circuit board 30, which is held in pressure contact with the inner surface of the operator 36 by the spring 43, becomes the fixed terminal. The piece 16 is contacted. In this state, a lighting circuit is formed of the fixed terminal piece 16, the circuit board 30, the neon lamp 31, the spring 43, the receiver 51, the flexible vJg 25, and the fixed terminal 17, and the lamp 31 connected to the wiring board 30 is lit.

(Effects of the Invention) According to the present invention, the circuit board disposed on the inner surface of the operator is held in pressure contact with the inner surface of the circuit board by the coil spring fitted to the operating shaft protruding from the operator. Since the engagement shaft contactingly engaged with the movable piece and the wiring pattern of the circuit board are electrically connected by the coil spring at least on one pole side of the electric circuit that supplies power to the Sanskrit element,
During assembly, a coiled spring is fitted to the operating shaft of the operator, and the engagement shaft is inserted into the long hole formed in the operating shaft to prevent the spring from being removed from the operating shaft and to hold the circuit board. The circuit board can be fixed and held on the operator without using any lower part, and since the spring forms the power supply circuit for the light emitting display element, there is no need for processes such as soldering, and when assembling the circuit board and The spring is held by the operator, making it easy to engage the movable piece with the engagement shaft, and the movable piece is reliably held in its swinging state by the spring, simplifying the structure and improving assembly workability. It is something.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a switch showing one embodiment of the present invention, FIG. 2 is a perspective view of the same operator as above, FIG. 3 is a perspective view of the operator part of the switch showing another embodiment, and FIG. The figure is an exploded perspective view of the same as the above, and FIG. 5 is an explanatory view of the operator section of the switch showing another embodiment. 16...Terminal piece, 21.22...Fixed contact, 25...Movable piece, 27...Movable contact, 30...Circuit board, 36...
Operator, 43... Coiled spring, 31... Light emitting display element, 41... Operating shaft, 44... Elongated hole, 45... Electrostatic engagement shaft.

Claims (1)

[Claims] (1) A terminal piece provided with a fixed contact, a movable piece provided with a movable contact that contacts and separates from the fixed contact and capable of reversing and swinging, and an operator that is swingably supported and causing the movable piece to reversely swing. , a coiled spring stretched between the operator and the movable piece to maintain the swinging state of the movable piece, a circuit board provided on the operator, and a circuit board connected to the circuit board. In the switch equipped with a light-emitting display element that emits display light that passes through the coil spring, the coil spring is made of a conductive material, and the operating element has an operating shaft formed in a long hole along the axial direction at the tip thereof. The conductive engagement shaft inserted into the elongated hole of the operating shaft locks the tip of the coiled spring fitted to the operating shaft, and The circuit board is held in pressure contact with the inner surface of the circuit board by a coil spring fitted to the operation shaft, and the engagement shaft contacting and engaged with the movable piece and the wiring pattern of the circuit board are connected by the coil spring to at least the above. A switch characterized in that one pole side of an electric circuit that supplies power to a light emitting element is electrically connected.