JPS642341Y2 - - Google Patents

Description

[Detailed description of the invention] [Details of the invention] (Industrial application field) The present invention can be used, for example, to display the activation or non-operation status of a load by operating the operating body of a tumbler switch using a discharge lamp, a neon lamp, etc. The present invention relates to a display device that displays information by blinking elements.

(Prior Art) Conventionally, a display device of a tumbler switch incorporating a display element such as a discharge lamp or a neon lamp of this type has been fitted into an operating body, as described in, for example, Japanese Utility Model Application Publication No. 52-60778. One lead wire connected to the combined indicator lamp via a resistor is connected to a conductive coil spring, and the other lead wire of the indicator lamp is connected to a conductive coil spring provided on a cover plate that covers the indicator lamp and resistor of the operating body. A structure is adopted in which each section is connected to the other.

Further, as described in U.S. Pat. No. 4,064,380, a light emitting lamp and a resistor are fitted and held in parallel in the vertical direction by a clip arm, and the member provided with the clip arm is covered with an operating body. The ivy structure is known.

(Problems to be Solved by the Invention) In the structure of the conventional display device described in the above-mentioned Japanese Utility Model Publication No. 52-60778, the lead wires of the light emitting lamps are connected by coil springs, so the storage part of the coil springs is It has disadvantages such as having to be formed and assembled, has a complicated structure, and is troublesome to assemble.

Furthermore, in the structure of the display device described in the specification of US Pat. No. 4,064,380, there is a risk that the light from the light-emitting lamp may be blocked by members such as a clip arm around the light-emitting lamp, and assembly is troublesome. have.

The present invention was developed in view of the above-mentioned problems. By attaching the resistor to the substrate in a semi-assembled state in which the display element and resistor are connected by lead wires, the display element can also be placed on the substrate, reducing light loss. , a clear display can be made, and the lead connecting the display element and the resistor can be made by fitting the contact piece that connects the lead wire of the display element and the terminal part into the locking groove of the insulating substrate. The wire and the terminal part can come into elastic contact, the structure is simple and easy to assemble, and the contact part of the contact piece that connects the lead wire of the display element and the terminal part can be formed by bending the contact piece.
The object of the present invention is to provide a display device that has a simple structure of contact pieces and is easy to manufacture.

[Structure of the idea]

(Means for solving the problem) The display device of the present invention includes a substrate, a resistor, a display element,
The substrate includes a contact piece, a terminal portion, and a display plate, and the substrate is provided with a holding groove on one side and a cut groove opening on the side edge, and the resistor is attached to the substrate by fitting into the holding groove. The display element is held on one side of the substrate by being connected to the lead wire connected to the resistor. Further, the contact piece is formed in an elongated shape and has a connecting portion on one end side and a contact portion on the other end side, and is bent and folded back at an intermediate portion, and the bent portion is fitted and fixed in the cut groove of the substrate. The connecting portion extends to one side of the substrate and is elastically connected to the lead wire, and the contact portion extends to the other side of the substrate, and the terminal portion is connected to the contact piece. The display panel is elastically connected to the contact portion and is provided on one side of the substrate facing the display element.

(Function) In the display device of the present invention, the display element connected by the lead wire is held on one side of the board by engaging and holding the resistor in the holding groove of the board, and the contact piece is folded back at the middle part. The contact piece is easily fixed to the board by fitting the bent part into the cut groove of the board, and the connection part of this contact piece with the display element extends to one side of the board, and The contact portion with the terminal portion extends to the other side of the substrate and is elastically connected to the lead wire and the end portion, respectively, and the light emission of the display element can be confirmed from the display plate provided on the support portion.

(Embodiment) Next, a case will be described in which the configuration of an embodiment of the present invention is applied to a tumbler switch.

Reference numeral 1 denotes an operating body molded from an insulating material such as synthetic resin, and is formed in the shape of a box having an electrical component accommodating portion 2 opened on the back side, and this accommodating portion 2 has a spring engagement hole 3 opened on the back side. A cylindrical portion 4 is integrally provided, and the tip of the cylindrical portion 4 protrudes from the back surface of the operating body 1.

On the operation surface 5, which serves as a display board on the front side of the operation body 1, a see-through part 6 facing a display element 14, which will be described later, is formed with a hole or a thin part. (not shown) is provided protrudingly.

Reference numeral 7 denotes a display piece, which is made of paper or plastic, preferably adhesive super-soft plastic.

Furthermore, 8 is a cover molded from a see-through material, and a fitting edge 9 to be fitted onto the operating body 1 is formed on the periphery.

Next, reference numeral 10 denotes a plate-shaped substrate made of an insulating material, and this substrate 10 has a fitting hole 11 in which the cylindrical part 4 of the operating body 1 is inserted approximately in the center, and the periphery thereof It is formed so as to be tightly fitted and fixed to the housing portion 2 of the body 1 and disposed on the operating body 1. Further, on one end side of one surface of this substrate 10,
A holding groove 13 for resiliently fitting and holding the resistor 12 is formed in the width direction, and a pedestal portion 15 for a display element 14 such as a neon lamp or a light emitting diode is formed at the other end. A lead wire 16 connected to one side of the display element 14 is connected and fixed to a lead wire 17 connected to one side of the resistor 12 by soldering or the like. In addition, grooves 181 and 182 are formed on both sides of the substrate 10 from the center to the other end, and the grooves 181 and 182 have a protrusion 19 at the lower part of the center, and the other end has a protrusion 19 at the upper part. Approximately L with a protrusion 20
It is formed into a letter shape. In addition, grooves 183 are formed symmetrically on one side edge of the substrate 10 at symmetrical positions closer to one end than the center.

Further, the cut grooves 18 are formed on both sides of the substrate 10.
1, 182, 183, a notch 21 and a projecting piece 22 protruding from the top surface at the position of this notch 21.
A locking groove 23 opening at the side edge is formed by punching.

Further, reference numerals 24 and 25 are elongated and elastic contact pieces, and the middle part is bent into a substantially L-shape and has a cut groove 183 on one end side of one side edge of the substrate 10 and a cut groove 183 on the other side edge. Engages between the protrusions 19 and 20 of the kerf 182,
One end side of these contact pieces 24, 25 is connected to the locking groove 23.
The protruding end from the locking groove 23 is bent back and the bent portion is inserted into the cut grooves 182, 1 of the substrate 10.
83 and secure it. One end side of these contact pieces 24 and 25 is used as a connecting portion 26 extending along one side of the board 10, and this connecting portion 2
6 is given elasticity in the direction of spreading from one side of the substrate 10. Further, the other lead wire 27 of the resistor 12 is connected and fixed to the elastic direction side of the connecting portion 26 of one contact piece 24 by spot welding or soldering. Further, the other lead wire 28 of the display element 14 is connected and fixed to the connecting portion 26 of the other contact piece 25 by spot welding or soldering.

Furthermore, a contact portion 29 is formed on the other side of the substrate 10 at the other end of the contact pieces 24 and 25 and extends downward in an inclined manner.

In this way, the connecting portion 26 and the contact portion 29 of the contact pieces 24 and 25 are bent and bent toward each other from the bent portion, and the grooves 182 and 183 of the substrate 10 that engage the contact pieces 24 and 25 are formed in the center of the substrate 10. Since they are formed in more symmetrical positions, the contact portions 29 of the contact pieces 24 and 25 are oriented in opposite directions with the center of swing of the operating body 1 interposed therebetween.

Also, a switch body 3 to which the operating body 1 is attached is provided.
0 is composed of a container body 31 and a lid body 32 molded from insulating synthetic resin, and terminal accommodating portions 33 and 34 are defined at both ends of the container body 31. Wire insertion holes 35 are formed in the bottom of the container body 31 so as to face the terminal storage parts 33 and 34, respectively.

36 and 37 are terminal storage portions 33 of the container body 31,
The terminal portion is housed in the body 34 and is formed on the body using a conductive metal plate. Both terminal parts 3
6 and 37 are connected to the locking plate 39 from both sides of the side plate 38.
and the contact plates 40 are sequentially bent and arranged in a U-shape,
Furthermore, a contact plate 41 is bent and formed on the upper edge. An L-shaped contact plate 42 is bent and connected to the abutment plate 40 of one terminal portion 37, and a fixed contact 43 is attached to the tip of this contact plate 42.

Locking plates 45, 45 made of spring plates are provided in both terminal portions 36, 37, and the locking tongue pieces 45, 45 are formed of spring plates.
6 is opposed to the locking plate 39 of the terminal parts 36, 37, and the back part is in contact with the contact plate 40.

Further, a fulcrum plate 47 is bent and connected to the other terminal portion 37, and a movable piece fulcrum portion 48 is provided at the tip of this fulcrum plate 47. Further, a movable piece 49 made of a conductive metal plate is swingably supported on this movable piece fulcrum portion 48 . A movable contact 50 corresponding to the fixed contact 43 is attached to one surface of the movable piece 49. Further, a spring engaging portion 51 is provided at the upper end of the movable piece 49. Further, the movable piece 49 is prevented from over-moving by an insulating stopper 55.

Further, a lid body 32 is attached to the upper opening of the container body 31 with a mounting metal fitting 52, and an operation window hole 53 that opens to the front is provided in the center of the lid body 32. The operating body 1 is swingably mounted on its support shaft, and the other end of a coil spring 54, one end of which is fitted into the spring engagement hole 3 of the operating body 1, is locked to the movable piece 49, and the operating body 1 is As the body 1 swings, the movable piece 4 is moved via the spring 54.
9 rotates, and a movable contact 5 constitutes an opening/closing contact mechanism.
0 comes into contact with and separates from the fixed contact 43.

Further, the contact portions 29 of the contact pieces 24 and 25 of the operating body 1 are connected to the contact plates 4 of the terminal portions 36 and 37, respectively.
1, 41 are elastically contacted.

Further, 56 and 57 are inserted through the wire insertion hole 35 and are connected to the terminal portions 36 and 37 and the locking pieces 45 and 45.
This is a release button that releases the clamping of the electric wire that is clamped between.

Next, the operation of this embodiment will be explained.

First, the assembly of the operating body 1 will be explained.

Display element 14 is connected to one lead wire 17 of resistor 12.
Connect one lead wire 16 of the resistor 12 and the display element 14 with solder or the like, and
In the semi-assembled state connected by 7, resistor 12 is connected to board 1.
When the display element 14 is fitted and held in the holding groove 13 provided on one side of the substrate 10, the display element 14 is held on the pedestal part 15, and by mounting the resistor 12 on the one side of the substrate 10, the display element 14 is held on the substrate 10. will be placed. and,
When this board 10 is fitted and fixed to the operation body 1, the resistor 12 and the display element 14 are arranged in the housing part 2, and the display element 14 is arranged opposite to the transparent part 6 of the operation surface 5 which serves as a display board. Ru.

In addition, the contact pieces 24 and 25 are assembled into the substrate 10 by inserting a bent portion formed in the intermediate portion into a substantially L-shape into a cut groove 18 on one end side of one side edge of the substrate 10.
and the protrusions 19 and 20 of the cut groove 182 on the other side edge, one end side of these contact pieces 24 and 25 is engaged with the locking groove 23, and the end protruding from the locking groove 23 is By folding and bending, the contact pieces 24 and 25 are fitted and held in the grooves 183 and 182 of the insulating substrate 10,
The connecting portion 26 is disposed on one side of the insulating substrate 10 along the plate surface, and the contact portion 29 extends obliquely on the other side of the insulating substrate 10. And contact pieces 24,2
The lead wires of the display element 14 and the resistor 12 are connected to the connecting portion 26 of 5. In this state, the substrate 10 is fitted onto the operating body 1 and fixed. The operating body 1 is swingably attached to the lid 32, and the lid 32 is attached to the switch body 30, so that the contact piece 24,
The contact portions 29 of 25 are elastically contacted with the upper contact plates 41, 41 of the terminal portions 36, 37.

During the opening/closing operation using the operating body 1, the operating body 1
The contact portions 29 of the contact pieces 24 and 25 that come into contact with and separate from the terminal portions 36 and 37 are oriented in opposite directions with the center of swing of the operating body 1 in between, so that When swinging, the operating force is uniform no matter which direction the swing is made, and the operating feeling does not become uneven.

Then, an electric wire is inserted through the electric wire insertion hole 35 of the container body 31, and is sandwiched between the terminal portions 36, 37 and the locking tongue pieces 46 of the locking pieces 45, 45 to mechanically and electrically connect.

Also, push the lock buttons 56 and 57, and lock piece 45,
The electric wire can be extracted by deforming the locking tongue piece 46 of 45.

In addition, in the opening/closing operation, when the protruding side of the operating body 1 is pushed, the operating body 1 begins to swing and rotate around the support shaft, changing the direction of the spring 54, but the upper end of the movable piece 49 and the operating body The spring 54 is bent in the space between it and the lower end of the body 1, and the movable piece 49
does not move, the movable contact 50 remains in contact with the fixed contact 43, and when the operating body 1 is further reversed from this state, the movable piece 49 begins to reverse for the first time, and at this time, the operating body 1 is on the opposite side. The operating body 1 and the movable piece 49 reverse and complete the reversal without applying any external force.

Then, when the movable contact 50 is in contact with the fixed contact 43 and when the movable contact 50 is separated from the fixed contact 43, the contact portion 2 of the contact pieces 24 and 25 is placed between the terminal portions 36 and 37.
The display element 14 connected through the electrical display element 14 is connected in series with the load through the resistor 12, and the impedance of the load is smaller than the impedance of the resistor 12, and the lighting voltage of the electric display element 14 is small. When the movable contact 50 is separated from the fixed contact 43, only the electric display element 14 lights up and the load is not activated. At this time, the display can be clearly displayed by irradiating the light from the operation surface 5 that faces the display element 14 and serves as a display plate of the operation tool 1. Further, when the movable contact 50 is in contact with the fixed contact 43, the load is activated and the display element 14 is turned off. In this way, when there is no load on the circuit, the display element 14 is turned on, and the display board 8
The display is made clear by irradiating the

[Effect of idea]

According to the present invention, the display element and the resistor are connected to each other by lead wires in a semi-assembled state, and the resistor is attached to the substrate, so that the display element is also arranged on the substrate, and the display element and the resistor can be easily integrated into the substrate. During assembly, disconnection due to unnecessary stress acting on the display element and resistor can be prevented, and the display element is free with respect to the substrate, and light is not blocked by surrounding members. Less light loss,
Optimal for display, the light emitting elements can be placed close to the display panel, allowing for clear display. Furthermore, the bent part bent at the middle part of the contact piece is fitted and fixed into the cut groove formed on the board, the connection part on one end side is extended along the plate surface on one side of the board, and the contact part on the other end side is fixed. Since the part extends to the other side of the substrate, the lead of the contact piece can be formed by fitting the contact piece, which has a connecting part connected to the display element side and a contact part making contact with the terminal part, into the cut groove of the substrate. It becomes possible to connect elastically to the wire and the terminal part, and the contact piece can be easily attached to the board, and the connection to the lead wire and the terminal part becomes easy. Furthermore, the structure is simple and easy to assemble, the contact piece can be bent, and the structure is simple and easy to manufacture.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of a tumbler switch incorporating a display device showing an embodiment of the present invention, FIG. 2 is an exploded perspective view of the same board, FIG. The figure is a perspective view showing the electrical connection state of the same as above. 5... The operating surface of the operating body 1 serving as a display board, 10...
... Substrate, 12... Resistor, 13... Holding groove, 14...
...Display element, 16, 27, 28...Lead wire, 1
82,183...cut groove, 24,25...contact piece,
26... Connection part, 29... Contact part, 36, 37...
...Terminal section.

Claims (1)

[Scope of utility model registration request] A board having a plate shape and having a holding groove on one side and a cut groove opening on a side edge, and a resistor that is held on one side of the board by fitting into the holding groove and connected to a lead wire. , a display element disposed on one side of the substrate by being connected to a lead wire connected to this resistor, and a display element formed in an elongated shape having a connection part on one end side and a contact part on the other end side. The connecting portion extends to one side of the substrate and is elastically connected to the lead wire by bending the bent portion at the intermediate portion and fitting and fixing the bent portion into the cut groove of the substrate. A contact piece having the contact portion extending to the other side of the substrate, a terminal portion elastically connected to the contact portion of the contact piece, and a terminal portion provided on one side of the substrate facing the display element. 1. A display device comprising: a display board;