JPS6215949Y2 - - Google Patents

Description

[Detailed description of the invention] [Technical field] The present invention relates to a composite wiring block constructed as an assembly of a plurality of wiring parts, particularly a composite wiring block that incorporates a switch that performs multi-stage switching by intermittent rotation of a stage wheel. This relates to wiring blocks.

[Background technology]

Composite wiring blocks were proposed for the purpose of reducing costs and improving reliability, and each wiring component such as a switch and a circuit board that connects these are housed between an insulating body and a cover. However, compared to the case where each wiring component is installed individually, it is recommended to use materials for the body and cover made of insulating material in terms of insulation from the circuit board that connects each component. From this point of view, there is a strong demand for composite wiring blocks to reduce costs by downsizing the entire structure.

On the other hand, in lighting equipment, a multi-stage switch is required in order to switch between two lights, one light, a small bulb, and off, for example, and this requires a so-called stage switch that performs switching by intermittent rotation of a stage wheel. Car switches are often used because they are small and inexpensive. An example of a gear wheel switch is shown in FIG. This step wheel switch, which is also shown in Japanese Utility Model Application Publication No. 52-121674, has a contact terminal 6 on a serrated switch step portion 22 formed on one side of the body 2.
2, and a stepped wheel 53 which is a common contact on the power supply side and is intermittently driven in one direction is provided, and the stepped wheel 53 is intermittently rotated by a pull ring 12 and a handle 54 to configure it as a pull switch. , the connection between the tray wheel 53 and each contact terminal 62 is switched. However, this method had the following problems.

That is, the common contact terminal 61 and the contact terminal 62 connected to the deck wheel 53 via the core rod 51 are connected to the deck wheel 5
3 is attached from the side opposite to the one side of the body 2 where the contacts are switched by its rotation, and when configured as a composite wiring block, these contact terminals cannot be provided directly on the circuit board. For this reason, there are problems in that the structure is complicated and assembly is difficult.

In addition, there is a structure in which the gear wheel is rotated by a push button, as shown in Japanese Utility Model Application Publication No. 153468/1983. It is shown that the side and load side contact terminals are provided at one end of the circuit board, and that these circuit boards are attached along the surface of the body, but the stage wheel here does not function as a common contact, but rather as a power source. It only functions as a shorting plate to short-circuit the side contact terminal and the load side contact terminal, and for this purpose, when configured as a multi-stage changeover switch to perform blinking control that switches to four stages as described above. In the case of using a stepped wheel as a common contact, the number of steps of the switch step seat section would be 8 steps, but 12 steps would be required, which would complicate the shape of the circuit board, and the number of contact terminals with this large number would be 12 steps. In order to arrange this, the switch step part must also be made large, which poses problems in terms of miniaturization, and also leads to poor yields and high costs for the circuit board.

Furthermore, there is a structure in which a multi-stage changeover switch is actually incorporated into a composite wiring block, as shown in Japanese Patent Application Laid-Open No. 53-122273. A contact terminal is provided as a part of the circuit board block, and the stage wheel is used as a common contact. However, in order to use the deck wheels as a common contact point, a common contact terminal board separate from the circuit board block is provided and this is connected to the conductive part of the deck wheels, which makes assembly difficult and costly. is getting higher.

[Purpose of invention]

The present invention has been devised in view of these points, and its purpose is to provide a composite wiring block equipped with a multi-stage changeover switch that is compact, easy to assemble, and inexpensive.

[Disclosure of invention]

Therefore, the present invention is composed of an insulating body and cover, and a circuit board block disposed on the joint surface of the two, and performs multi-stage switching by intermittent rotation of the stage wheel as at least a common contact point. The above-mentioned switch has a built-in switch and performs multi-stage switching by intermittent rotation of the deck wheel as a common contact. a mechanism block consisting of a rod, a spring that urges the deck wheel in one direction, and an operation input section for driving the rotation of the deck wheel; and a switch step seat that is formed protruding from one surface of the body and stops the rotation of the deck wheel. It is composed of a plurality of contact terminals arranged on the section and a common contact terminal connected to the stage wheel via a conductive member, and is formed as a part of the circuit board block and on which the circuit board block is arranged. The common contact terminal in the terminal part is passed through a groove provided in a part of the switch step where the contact terminal is not arranged. This is characterized in that it is inserted between a core rod and a plurality of contact terminals surrounding the core rod.

The present invention will be described in detail below based on the illustrated embodiment for the lighting equipment. Fig. 2 is a perspective view of the lighting equipment main body with the fluorescent light, lower cover and shade of the lighting equipment removed; A wiring block 1 and ballasts 11, 11 disposed on both sides of the wiring block 1 are attached to the lower surface of the device body 10.

The wiring block 1 has a pair of glow lamp sockets 6, 6, a miniature bulb socket 7, and a pull switch pull ring 12 arranged on its lower surface, and lamp sockets 13 are led out from both ends in the longitudinal direction. As shown in the figure, the body 2, the circuit board block 3, and the cover 4 are connected in a vertical plane, and the pull switch mechanism block 5 connects the body 2 and the cover 4. It has become something that has been incorporated between.

The body 2 and the cover 4 are molded products of synthetic resin, and each circuit board in the circuit board block 3 is formed by punching and molding a conductive metal plate. A switch stepped portion 22 for a pull switch is formed on one side of the center, and a power plug 1 is formed on a part of the upper surface.
One half of the insertion opening 20 of No. 4 is provided. The switch step seat portion 22 is constructed by arranging a plurality of inclined steps 26 in a ring shape, which are formed to protrude from the surface of the body 2. A core rod attachment hole 23 is provided through the body 2. The part surrounded by the switch step seat part 22 is formed on the same plane as the surface of the body 2, and the groove 27 formed by cutting out the lower part of the plurality of inclined steps 26 allows the switch step seat part 22 to be Inside and outside are connected.

The circuit board block 3 consisting of a plurality of circuit boards is
It has lamp socket connection terminals 31 at both ends, and glow lamp terminals 32, 3 at both ends.
2. Switch terminal part 33 and miniature ball terminal 34 in the center
A power supply connection terminal 35 is provided above the miniature bulb terminal 34, and a ballast 11 is provided on the side of the switch terminal portion 33.
It is provided with a connection terminal 36 for connecting to the terminal. Further, each circuit board is provided with a locking pawl 37 formed by bending in one direction. The distal ends of these locking claws 37 are cut and raised into a single feather-shaped claw.

The switch terminal section 33 includes a common contact terminal 33a and a plurality of contact terminals 33b, 33c, 33d, 33.
e, with a core rod insertion hole 40 in the center.
A common contact terminal 33a having a
c, 33d, and 33e are arranged on the surface of an arbitrary inclined step 26 of the switch step seat portion 22, respectively. The lead wire portion 33f of the common contact terminal 33a is connected to the groove 27.
The switch is pulled out from the stepped seat portion 22 through the inside. The common contact terminal 3 is provided with a plurality of grooves 27, and the lead wire portion 33f is passed through each groove 27.
The positioning of 3a is stable and each contact terminal 33b to 3
3e, the common contact terminal 33a is installed in a recessed area surrounded by the switch step portion 22, although the common contact terminal 33a is on the same plane as the body 2. It is installed for the same reason.

The mechanism block 5 of the pull switch includes a step wheel 53 made of a conductive material, a handle 54 made of a synthetic resin molded product and a metal plate fixed to one side thereof, and a handle 5.
A pull ring 12 and a handle 54 are connected at one end to the handle 54 and constitute an operation input section together with the handle 54.
and the spring 55 which is in charge of the return of the gear wheel 53 and the elastic contact of the step wheel 53 with the switch terminal portion 33, and the support metal fitting 5.
6, and a core rod 51 to which each of these members is assembled.
As shown in FIG. 6, a deck wheel 53 and a handle 54 are rotatably attached to a core rod 51 having a square root 57 formed at one end and a collar 52. After attaching the spring 55 to the core rod 51, the supporting metal fitting 56 is fixed to the other end of the core rod 51 and fixed by caulking to prevent it from coming off. Note that the spring 55 has its both ends locked to a support fitting 56 and a shutter 54.

The cover 4 is connected to the body 2 at both longitudinal ends thereof.
A semi-cylindrical space 4 opening downward and facing the surface of the
1, 41, and a smaller semi-cylindrical space 42 near one of the semi-cylindrical spaces 41, and a threaded groove is cut on the inner circumferential surface of the semi-cylindrical space 42.
Above the smaller semi-cylindrical space 42, the remaining half of the power plug connection port 20 is formed.

Thus, the wiring block 1 is formed by interposing the electric circuit board block 3 and the pull switch mechanism block 5 between the body 2 and the cover 4, and at this time, the semi-cylindrical cavities 41, 41, 42 are filled with glow. The result is a glow lamp socket 6 and a miniature bulb socket 7, which are provided with lamp terminals 32, 32 and miniature bulb terminals 34, respectively, and are assembled as follows.

That is, by inserting each locking pawl 37 provided on each circuit board of the circuit board block 3 into the locking hole 25 provided in the body 2 and locking the pawl to the back side of the body 2, the body Attach electric circuit board block 3 to the surface of 2. At this time, the switch terminal portion 33 of the circuit board block 3 is arranged at the above-mentioned position on the surface of the body 2. After this, the mechanism block 5 of the pull switch is connected to the electrical circuit board block 3 in the body 2.
The mechanism block 5 is a pre-assembled assembly as described above, and the core rod 51
Pass the square root part 57 of the body 2 through the core rod attachment hole 23 at the center of the switch step seat part 22 and swage the tip. As shown in FIG. 9, the common contact terminal 33a is bent in advance to have spring properties so as to come into elastic contact with the collar portion 52, so that electrical contact between the common contact terminal 33a and the core rod 51 is prevented. It will definitely be done. As shown in FIG. 10, a large number of protrusions 45 may be formed on the edge of the core rod insertion hole 40 of the common contact terminal 33a, and the core rod 51 may be press-fitted therein. It is even more preferable to combine both.

In the pull switch mechanism block 5 assembled to the body 2 in this way, a step wheel 53 is connected via a core rod 51 to a common contact terminal 33a arranged on one side of the body 2 on which the circuit board block 3 is arranged. , the step wheel 53 serves as a movable common contact point, and when the handle 54 intermittently sends the step wheel 53 by operating the pull ring 12, the step wheel 53 moves to any position on the switch step seat 22. Contact terminals 33b to 33e are contacted.

Note that the groove 27 through which the lead wire portion 33f of the common contact terminal 33a passes is formed in the inclined step 26 where the contact terminals 33b to 33e are not provided. Further, the lead wire portion 33f is connected to the common contact terminal 33a and the step wheel 5.
Since the electric potential is the same as that of 3, even if the gear wheel 53 comes into contact with the lead wire portion 33f during its rotation, no arc or the like will occur and there will be no adverse effect on the gear wheel 53 or the contact terminals 33b to 33e. Therefore, it is sufficient that the lead wire portion 33f is located below the highest height of the inclined step 26, but from the viewpoint of operational feel and positioning, it is necessary to pass it through the groove 27 provided at a lower part of the inclined step 26. It is something that exists.

The cover 4 and the body 2 are fixed from the cover 4 side using fixing tools 18 such as driving rivets or screws, and the noise prevention capacitor 17 is attached to the outer surface recess 43 from above the fixing tool 18. The terminal of the noise prevention capacitor 17 passes through the cover 4 and is connected to a capacitor mounting terminal 38 which is connected to the glow lamp terminal 32 of the circuit board block 3. The lead wires of the lamp socket 13 are connected to the lamp socket connection terminals 31 at both ends of the circuit board block 3, and are fixed by caulking through the caulking windows 21.

[Effect of idea]

As described above, in the present invention, all conductive parts other than the switch mechanism block are integrally constructed as a circuit board block, and in particular, a common contact terminal is used to make the platform wheel in the switch mechanism block a common contact point. Since it is installed on the same side of the body as other conductive parts, it is easy to assemble everything other than the switch mechanical block by simply assembling the circuit board block on one side of the body. Since the parts can be made small, it is possible to achieve miniaturization, and at the same time, the yield of the conductive material that makes up the circuit board block is good, which reduces costs.Furthermore, the common contact terminals are arranged surrounding this The lead wire for this connection must be passed between the contact terminals that are connected to other conductive parts, but the lead wire for this connection is passed through a part of the switch step where no contact terminals are provided, and Since the stepped wheel and the lead wire part are at the same potential,
There is no problem caused by contact with the tray wheel, and in this respect also it is possible to downsize the device.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of the conventional example, Fig. 2 is a perspective view of the lighting fixture body, Fig. 3 is an exploded perspective view of an embodiment of the present invention, Fig. 4 is a front view of the body, and Fig. 5 is the same as above. 6 is a perspective view of the mechanism block of the switch, FIG. 7 is a cutaway bottom view of the same as the above, FIG. 8 is a longitudinal sectional view of the same as the above, FIG. 9 is a partial bottom view of the same as the above, and FIG. 10 is the same as the above. FIG. 2 is the body, 3 is the circuit board block, 4 is the cover, 5 is the mechanism block, 22 is the switch step seat,
27 is a groove, 33 is a switch terminal portion, 33a is a common contact terminal, 33b to 33e are contact terminals, 33f is a lead wire portion, 51 is a core rod, 53 is a stepped wheel, and 55 is a spring.

Claims (1)

[Claims for Utility Model Registration] (1) Consisting of an insulating body and cover, and an electric circuit board block disposed on the joint surface of the two, the device is configured to have intermittent rotation of the deck car as at least a common contact point. This switch incorporates a switch that performs multi-stage switching by intermittent rotation of a gear wheel as a common contact. A mechanical block consisting of a core rod that supports the car, a spring that biases the cart in one direction, and an operation input section for driving the rotation of the cart; The circuit board is composed of a plurality of contact terminals disposed on the step portion of the switch to be stopped and a common contact terminal connected to the step wheel via a conductive member, and is formed as a part of the circuit board block. It consists of a terminal section arranged on substantially the same plane as the plane on which the block is arranged, and the common contact terminal in the terminal section is inserted into the groove provided in the part of the switch step section where no contact terminal is arranged. A composite wiring block characterized in that a lead wire portion is inserted between a core rod and a plurality of contact terminals surrounding the core rod. (2) The composite wiring block according to claim 1 of the utility model registration, characterized in that a plurality of lead wire portions and a plurality of grooves through which the lead wire portions are passed are provided. (3) The composite wiring block according to claim 1, wherein the common contact terminal is installed in a recess surrounded by a switch step.