JPS6032210A - Display circuit block and method of producing same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to the structure of a display circuit block with a built-in switch that lights up a display element such as a neon tube when it is off to indicate the location of the switch in the dark, and a method for manufacturing the same. It is.

[Background technology]

Figure 1 shows a cross-sectional view of a barrel-shaped switch, which is mounted on a support protrusion (3) of a metal fitting (2) located at the bottom of the body (1). Movable contact body (
4) can be freely supported, and the operation handle (5) can be freely supported.
), attach the lower half of the coil splinter (7), which has 4 halves attached to the hole (6) made in the center lip (51), to the movable contact body (4), and then flip the operating handle (5)! 1, the coil spring (7) is bent and reversed to rotate the movable contact body (4) to the left and right around the support protrusion (3). Town I auxiliary contact (8) provided on the side of the L part of the contact body (4)
The fixed terminal board (9) contacts and releases the fixed contacts 4 to turn on and off. As shown in the figure, the locking fitting for the quick-connect terminal is attached to the fixed terminal board. (9) or the connecting terminal Q with the terminal plate part (2a) of the conductive metal fitting (2)
Or configure C4.

However, in the figure, when the pre-contact contact (8) and the fixed contact OQ are in contact, current is applied between both connecting terminals a and (14), and the switch is turned on. However, this type of switch The display circuit block built into the conventional switch is shown in Figure 2 (a
), as shown in (b), the printed circuit board 1. Attach and wire the display element a and the current-limiting resistor (Iη) in series to L (9) to form a block in advance by soldering, and insert this block-formed member into the hole 0 provided on the printed circuit board tIQ. It is attached to the operating handle (5) by inserting the central part (5a) of the hashidle (5).Then, connect one end of one lead wire (a)' of the resistor gη to the coil spring:/ Connect electrically to end (7) and display
The contact part 01 connected to one end of the terminal board 0.5 is provided on the bottom surface of the end of the printed circuit board Q, and when the operating handle (5) is turned to the OFF side, the contact part 01 connects to the top surface of the fixed terminal board (9). , connecting terminal 9, conductive metal fitting (2), convex J! 1r
l) Contact body (4), coil spring (7), resistor 1
．． 1, display thread (c), fixed Dii 11 board (9),
A quick connection terminal (14 energizing circuits are formed and the display terminal U11 is designed to emit light.

Such a switch is very convenient for the user because it can display the location of the dark + and 'il switches by incorporating a display circuit block, but the conventional display circuit block is a printed circuit board UQL as described above. Since the resistor Oη and the display element U were connected in series with solder N°, and each component was made to stand upright on the printed circuit board C1fj, it was unstable and the operation handle (5) could not be turned on. , there was a problem that vibration was transmitted and the wire broke when the switch was turned off, and it was very troublesome to set up the n4.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned problems, and is a display capable of stably holding a resistor and a display element, and preventing the green broken line of the resistor and display element from being exposed to vibration. The object of the present invention is to provide a circuit block, and also to provide a method for manufacturing a display circuit block that allows display circuits and locks to be self-assembled through a consistent assembly process.

[One power 1 indication of ``barking''] Figures 5(a) to 5(d) are drawings showing the manufacturing process of one embodiment, and in the figure (5) is a long makinai-shaped gold plate, j・Integrate the molded substrate @ to the buried plate Qυ in the longitudinal direction (C-in 4j
-L-shaped hoop material. The molded substrate (2), which is integrally molded with this hoop material (3), has a U-shaped recess (1r) on which the head of the display element 09, such as a neon tube, is mounted on one side of the front surface.
A molded rudder stand equipped with +3 is integrally protruded, and a hole (18) for inserting the center rip (5a) of the operating handle (5) is opened in the center. Furthermore, 61y on the surface
d, in charge.

The molded protrusion (2Q is protruding from the convex side) for locking the antibody 1.171 is provided. Inside the molded substrate (2) is a metal lead which is punched and formed on the market. By inserting a part of the metal lead plate C11) between the insert part and the li'd side using a connecting piece, the molded board (2) is formed into a hoop-shaped gold Af lead plate C11). It is held integrally by the plate c2v.

The hoop-shaped metal lead plate ev is continuously fed out and first attached to the formed substrate (support) by the terminal forging device).
The three connecting pieces protruding from the side are cut, and a part of each connecting piece is used as the terminal (a) for caulking and fixing the lead wire (g) of the resistor η, and the lead wire of the display element aQ @ Terminals (to) (g) for caulking and fixing one end of Vθ are formed. Next, the resistors qη, which are aligned by chi-hinging both lead wires...', are sequentially fed through the resistor insertion i (C), and the molded protrusion of the molded base @ of the metal lead plate @])-1 ( It is press-fitted and locked between (c) and (c) and (c). In this embodiment, the number of molding protrusions (A) is two on one side, and one molding protrusion is arranged in parallel corresponding to the central part IR of the two molding protrusions (A). ), and the resistor element η is locked and fixed between the molded protrusions 4 and (c) on both sides. At this time, one lead wire d of the resistor opening is placed on the U-shaped portion of the terminal (A). And the resistor (
The lead wire force ' of l.eta. is caulked and fixed to the terminal (7) by caulking the U-shaped portion of the terminal (-) with the caulking machine. After this caulking and fixation, the lead wire bending machine (
(g), the lead wire -' of the resistor cap η is bent vertically from the base, horizontally at the middle part, and bent at an angle 45) with respect to the resistor mouth, and the lead wire field is The tip of ' is exactly in the center of the hole (8) in the molded substrate 4.Furthermore, after this process is completed, the two lead wires C, '7) of the display element 09 are Terminal 1 (C) is placed on the ■-shaped portion and the U-shaped portion is caulked by the caulking machine (F) to be fixed to the terminal C→. 0) in the figure is an alignment machine that aligns the display elements (15) that are hinged and sends them to the parts supply machine (g), and cuts the lead wire @ (b) of the display element 119 to a predetermined length. (I) is the display element (lead line 19) of the CH route of the parts supply machine (J).
This is a bending machine that can bend 901 lbs of a) (b) for a display element (IGK).

Now, as mentioned above, the lead wire ψ)v) is "iij + I
For the display cable OQ lead wires (a) and (b) that are crimped 1^1 to J4 f! Since the lead wire (A) is in a perpendicular position on JO0, the lead wire (A) t2 should be bent at the next stage (presentation) so that the display cable OQ is horizontal due to the shallow recess.
Bend 0° and mold the head of display element 09 (toward)
The lower surface of the display element uQ is placed on the lip quadruple which is fitted into the U-shaped recess of
f to hold the display element OG on the substrate (2). In this way, the hoop-shaped metal lead plate ψυ
The resistors 1, 171 . Display element (i
After completing the assembly of Q and caulking and fixing the terminals μs, (2), (c) to the respective lead wires)', ←l), ψ), a portion is attached to +1J after the separation of each molded base (2). Twist the hoop-shaped metal lead plate Qυ at X points to invert the L side and the bottom side so that the resistor 1:17) and the display element Qυ are on the bottom side.

At this time, resistor 1. I′I) are molded protrusions (2), (c),
Since it is locked by □□□, it does not fall downward. This reversal is carried out in the next step 2, in which the formed substrate (2) can be easily separated from the upper part of the hoop-shaped metal lead plate eυ with a cutting die, and the formed substrate (2) is placed in the direction 111. The purpose is to make it easy to press-fit the center lip (5a) of the operating handle (5) into the four holes.

Now, after the above-mentioned reversal, the connecting piece between the molded substrate (4) and the surrounding metal lead plate vertical υ is cut from above using a cutting machine with a zero-glue mold, and a desired display circuit block is obtained, and at the same time this display circuit The block is located at the center lip (5) of the operation handle (5) that has been moved downward by the Isidex table α.
The holes (into) are press-fitted into the molded substrate divided into parts a) using downward pressure during cutting, and the molded substrate) is firmly fixed to the operating handle (5).

During this press-fitting, push the tip of the lead wire Δ' of the resistor Q7) into the hole (6) of the center edge (5a) of the operating handle (5) through the notch groove (5b) of the center edge (5a). let ■ in the figure is an automatic supply device for operating handles (5), and the operating handles (5) are sequentially fed through an alignment machine ()).
As shown in Figure 4, insert the lamp cover (pulled from the translucent material 0υ) into the hole in the ceiling using the lamp cover insertion machine (P), and then transport it to the Isidex table. be. The index shift table φ is supplied with the operating handle (5) at the location of ■, and at the location of Using the fiber insertion machine (6), insert the light-shielding fiber (■) cut out and bent in a U-shape from the light-shielding fiber material 111'4 into the inside of the operation handle (5) as shown in Fig. At the location, a detector (SJ) is used to detect the presence and posture of the light-shielding fiber (to), and at the position of ■, the above-mentioned molded substrate (2) is separated and press-fitted into the operating handle (5), The IT engineer performs a lighting test on the display circuit, and then takes the products out at the location marked ■.At the time of picking up the products, they distinguish between good and defective products that were sorted out during the lighting inspection as described in til'J. At the position marked (■), a detector α detects whether or not the index table LK operating handle (5) remains.

By the way, at one end of the molded base vl(a), there is a contact portion 641 covered with the molding material [i], which is connected to the built-in metal lead plate 0.
]) is formed by protruding a part of it, and the contact point 111w◇
contacts the fixed terminal board (9) inside the switch and releases rJIJ.

Figures 5(a) to 5(d) show the process of forming electric circuits using long gold wires, which are wound into a hoop shape.
A long metal lead plate ◇ of m/m thickness is cut out using a punching machine (foundation).
The heart tract is formed by punching it out in the center, and the fifth
As shown in figure (b), the electric circuit has terminals at both ends),
An electric path (fa) forming (4) and an electric path (l!b) forming a terminal (at one end) and a contact part (■) at the other end.
and a terminal (G) formed in the step described in 1.
, (to) the lead wire I27 of the display element Oe), (c)
Caulk and fix, and connect the resistor O force lead wire (
4) When ' is caulked and fixed at 1, 1.1, a series circuit of resistor μη, display element 0, and contact ItIIj is connected to each electric circuit (I!
a) and (lb). Figure 6 (
a) to (d) are each type FI of the hoop-shaped metal lead plate I2p that was wound up after forming the electric circuits (la) and (lb) as described in E! It shows the process of insert molding with a molding machine (G) so that the r (l a ) (l b ) portion is covered with a molded substrate (E), and during this insert molding, the molding lira stand (to), the ribbon ( 2) and molded protrusions (a), (c)
, (a) is provided. In the figure (to) is an interlayer paper inserted between the layers when the hoop material A is wound up. Figures 7(a), ``)l, and (c) show the E side view, front view, and cross-sectional view of the molded base & @ unit taken out, and the fixed contact plate is below the contact part ①. (9) is provided with a tab (g) that contacts.

However, as mentioned above, the operation handle (5) on which one of the display circuit block circuit board tracks is mounted is mounted inside the switch body (1) as shown in Fig. 8) in the same manner as before. The coil spring (7) and half are attached to the center lip (5).
It is inserted into the hole (6) of a) and electrically connected to the lead wire -' of the resistor port pushed into the hole (6), and the contact part DI of the molded board (a) is operated. It is arranged on the lower surface of the periphery of the handle (5), and comes into contact with the fixed terminal plate (9) and opens 1'iI when the operating handle (5) is operated. In the figure, (9) is a release button, and (9) is a jig insertion hole.

Figure 9 shows that the resistor in one embodiment has a molded protrusion (c).
, (4), and (c) are perspective views showing the deafness locked.

Note that the resistor GO can be held in place by not only the convex molded protrusion 44 of the above embodiment but also a display element such as a neon tube between the molded protrusions 6C parallel to FIGS. 10 and 11). u9 may be press-fitted. In the figure, (!Gla) is a recess into which the display element u5 is fitted.

In addition, as shown in Fig. 12, a part of the metal lead plate φυ inserted into the molded substrate (A) is used to attach the holding piece (21
a), and this presser piece (21a) and molded ring body (7
) may be used to lock the resistor uO from both sides. Figure 13 shows the molded lip body (B) and presser piece (2) in Figure 12.
1a) shows an embodiment in which the VL is on the opposite side.
As shown in Fig. 4, parallel holding pieces (21a) (21a)' are formed using metal lead plates η without using the molded lip body (b), and resistors (21a) (21a) are formed using both holding pieces (21a) (21a). J7) may also be used.

Furthermore, as shown in FIG. 15, a part of the metal lead plate (2I) may be curled, and the resistor element η may be inserted into the curled portion (21b) and locked.

Furthermore, as shown in FIGS. 16(a) and (b), molded protrusions 141) (b) 0]) having an arc-shaped cross section are protruded from the same circumference E so as to have a cylindrical shape, and these molded protrusions Q1 )0υ01) The resistor Qη may be press-fitted and locked into the space surrounded by 0υ01).

[Effect of emitting power]

As described above, the present invention provides a molded lip base that supports a display element integrally on the surface of a molded base in which a metal lead plate for an electric circuit is embedded, and a rest that locks and holds a resistor on the surface of a molded end body. a terminal protrudingly provided with an output means, and a terminal for caulking and fixing one end of one lead wire of the resistor to the side of the molded base;
A pair of panes for caulking and identifying one ends of both lead wires of the display element are provided by protruding a part of the metal lead plate, so that the display element and the resistor are connected in series through the metal lead plate. Since the display element and the resistor can be positioned using the molding die and the locking means, the display element and the resistor can be placed in the molding die and the resistor by the locking means, so vibrations can be prevented. This has the effect of preventing breakage of the lead wires, resulting in high reliability even when incorporated into the switch.Furthermore, since the metal lead plate for the electrical circuit is embedded in the molded wood, it can be incorporated into the switch. Even if the contacts are opened and closed using
Since the electric circuit is not exposed, it is completely unaffected by arcing, and has the excellent effect of increasing reliability.

Furthermore, in the combined invention, since the molded substrate is formed on the anti-metallic lead plate by simultaneous molding, it can be handled as a hoop-shaped member, and a desired display circuit block can be manufactured by a continuous continuous process. Compared to the case where individual blocks are made individually, quality can be stabilized and costs can be reduced.In addition, when dividing display circuit blocks from long metal lead plates, predetermined parts (for example, operation handles) can be removed. In order to enter 1 king in
This has the effect that one press-fit can be performed and the number of steps can be reduced.

[Brief explanation of drawings]

Figure 1 is a sectional view of a switch using a conventional example, and Figure 2 (a
J, (b) is a front view and side view of the conventional example, and Fig. 5 (a) -
(d) is an explanatory diagram of the process of the present invention, Fig. 4 is an explanatory diagram of the assembly of the operating handle used in
d), 4S6 Figures (a) to (d) i-1: Explanatory diagram of the processing process of the long metal lead plate used in the same H, Figure 7 (a) to (
c) is the L side view and front view of the molded substrate part of the same h <
Figure 8 shows the 1υi diagram of the switch using the zero-starting example, and Figure 9 e shows the cross section of 1'l perspective view, FIG. 10 is a perspective view of the container of another embodiment of the present invention, FIG. 11 is a front view of the same, and FIG. 12C is a perspective view of essential parts of another embodiment of the present invention. , FIG. 15 is a perspective view of the main part of the same modification, FIG. 14 is a perspective view of the main part of another embodiment of the invention, and FIG. 15 is a perspective view of the seat of still another embodiment of the invention. Figure 16(a),(b)r
/- is a top view of the clasp and a perspective view of the main part of yet another embodiment;
(171 is a resistor, 1'?: l, lead wire, CI) is a planned lead board, (a) is a molded 11 board, e is a molded stand, (c) is a molded The protrusion, (to) is the terminal, the spring is on the Q-1-J lead, and the end is the terminal. Agent Patent Attorney Ishi 1) Chief 7., -1 Figure 1゜(b) (C) Figure 8 Procedural Amendment (Voluntary) 1. Indication of the incident 1981 Special e-Publication No. 13'? 647 No. 2, Invention name display circuit block and Part 1! J method 3, relationship with the case of the person making the amendment Patent applicant Address: 1048 Kadoma, Kadoma City, Osaka Prefecture Name (
583) Matsushita Electric Works Co., Ltd. Representative Iku Kobayashi 4, Agent postal code 530 5, Date of amendment order As per attached attachment \-9-・Pa' Correction Application number Patent application 1986-13'? 647Jyj1, special rf issued in January [Claims are amended as follows. [(1) Place the metal lead plate for the electric circuit inside the J! I! A molded lip base that supports the display element is integrally provided on the surface of the molded base, and a locking means for locking and holding the resistor is formed on the surface of the molded base, and the resistor is attached to the side of the molded base. A terminal for caulking and fixing one end of one lead wire of the body and a pair of terminals for caulking and fixing one end of both lead wires of the display element, respectively, are provided by forming a part of the gold iA doped plate into a film. A display circuit block consisting of a display element and a resistor connected in series via a metal lead plate. (2) A long metal lead plate is formed by punching out electrical circuits for display circuits at equal intervals in the longitudinal direction, forming a molded substrate by insert molding on each electrical circuit flf+, and winding it up into a coil shape. The terminal fork is run in the unwinding direction to cut some of the connecting pieces that connect the electric circuit part inside the molded board and the metal lead plate part outside the 1-degree board, and also to form terminals for caulking and fixing. a minking process, a resistor mounting process of locking the resistor to a locking means provided on the molded substrate, and caulking and fixing one lead wire of the resistor to the corresponding terminal created in the terminal forming process. The lead wire caulking process, the bending process of the remaining lead wires of the resistor, and the corresponding terminal forming process for both lead wires of the display assembly, are performed to form the display element. After going through the process of bending both lead wires so as to place them on the lead plate, the molded base part is separated by a distance W1 from the long metal lead plate to obtain the display circuit block, and at the same time, the display circuit block is placed in a specified manner. A method for manufacturing a display circuit block, characterized in that the display circuit block is press-fitted into a member by applying cutting pressure during separation. ” 2. Change “Lead line -” on page 4, line 14 of the specification of the present application to [
Lead? Correct it to 1M (to) “”. 3. In the 5th line of page 7 of the same page, change [Lead line (to)'-] to "
I am corrected as ``Lead Yu-d''. 4. Correct ``1 lead Iwao-'' on page 7, line 15 of the same as ``lead m-''. 5. [Parts supply a (
g) Correct J to [Parts supply machine CGJ J]. 6. Same as above, page 13, fs, line 6, ``Jig insertion hole'' is corrected to ``1 screwdriver insertion hole''. 7. Resistor (+ol J in the 9th line of the same page as above is corrected as "resistor (17)". 8. 1 Neon tube-like in the 11° line to 12th line of the same page as above) Correct display element 1151J to "resistance element 97" 0 9, same page, line 15
Resistor Oη” is corrected. 10. “Resistor (101J)” in line 15 of the same page is corrected as “Resistor ση”. 11. Figures 3, 7, 8, 11 and 13 are attached as separate sheets. Correct the general rule. Agent Patent Attorney Ishi 1) Cho 7 (b) (C) 6 Figure 8

Claims (2)

[Claims] (1) A molded base supporting the display element is integrally provided on the surface of the molded base in which the metal lead plate for the electric circuit is embedded, and a locking means for retaining the resistor is protruded from the surface of the molded base. A terminal for fixing one end of one lead wire of the resistor by caulking and a pair of terminals for fixing one end of both lead wires of the display element by 75-L, respectively, are attached to the metal lead on the side of the molded base. A display circuit block comprising a part of a plate protrudingly provided to connect a display element and a resistor in series via a metal lead plate. (2) Electrical circuits for display circuits are punched out in advance at equal intervals in the longitudinal direction, and a molded substrate is formed by insert molding on each electric circuit portion, and then a long metal lead plate is sequentially wound into a coil shape. A terminal forging process in which the connecting piece is run in the unraveling direction and connects the electric circuit part inside the molded board and the metal lead plate part outside the molded board, and at the same time a terminal for caulking and fixing is formed, and the molding a resistor mounting step in which the resistor is locked to a locking means provided on the board; and a lead in which one lead wire of the resistor is caulked to the corresponding terminal created in the terminal terminal step. A wire caulking process, a bending process of the remaining lead wires of the resistor, and a process of caulking both lead wires of the display element to the terminals created in the terminal fourter process. After completing the step of bending both lead wires so as to place them on the board, the molded base part is separated from the long metal lead plate to obtain a display circuit block, and at the same time, the display circuit block is placed in a predetermined member. Method 0 for manufacturing a display circuit block characterized by press-fitting by applying cutting pressure during separation