JPH0620272Y2 - Lever switch device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a lever switch device suitable for use in a switch such as a room lamp of an automobile.

[Prior Art] As a device for mounting a rotary body for operating a switch or the like, there is a conventional device disclosed in Japanese Utility Model Laid-Open No. 52-54863, for example.

This conventional technique comprises a plastic molded chassis and a rotating body attached to the chassis. The rotating body is integrally formed with at least one fulcrum shaft, and the chassis has a substantially semi-circular fulcrum. At least one support arm having a shaft fitting portion and at least one claw having elasticity for pressing the fulcrum shaft fitted to the fitting portion from the side opposite to the support arm are integrally formed. Formed,
A rotary body mounting device in which the fulcrum shaft is rotatably supported about the fulcrum shaft while the fulcrum shaft is fitted in the fitting portion and the fulcrum shaft is pressed by the claws.

[Problems to be solved by the invention] However, in this thing, when pivotally supporting the operation lever on the main body chassis, after inserting the fulcrum shaft of the operation lever (knob) between the pair of claw plates on the main body side, The claw plate is bent downward while the shaft is moved downward, and the support arm is bent at the end point of the claw plate while the claw plate is engaged with the upper surface of the fulcrum shaft by its elastic return to fit the operation lever to the fulcrum shaft. It was pivoted to the joint.

Therefore, when the knob is operated, a load reaction force applied to the lower part of the knob applies a relative force to the fulcrum shaft in the direction of squeezing the fulcrum shaft, that is, in the direction of escaping from the fitting recess of the support arm. As a result, the support arm is pushed downward on the slope of the fitting recess, and as a result, the support arm bends down against its elasticity, and the knob fulcrum shaft comes out of the support arm fitting part and becomes unusable. There is a serious problem that this accident cannot be repaired from the outside.

Also, if downward operation stress is applied to the knob,
The support arm is pushed down by the fulcrum shaft and bends down, causing the operating lever (knob) to move abruptly, resulting in a poor operability and erroneous operation. There is a serious problem that it may cause a personal injury depending on the application place such as when it is used.

Also, in order to turn on and off the electric circuit with this one, it is necessary to control the slide switch separately provided by the movement of the knob pin, so the sum of the cost of this switch and the cost of the switch surrounding member However, there are many problems that the cost is increased and the space is disadvantageous.

In order to eliminate the above-mentioned problems, the present invention improves the operability and the assemblability by disposing the operation lever of the switch so as to pivotally support the frame-shaped base substantially vertically. At the same time, the flexible movable contact piece is attached to the operation lever with one touch to promote automation of assembly.

[Means for Solving the Problems] The above-mentioned object of the present invention is to provide an insulative base body formed of plastic into a substantially hollow rectangular parallelepiped shape, a flexible hook piece formed between the upper and lower voids of the base body, An operating lever pivotally supported by engaging a pair of hinge bosses in the recess between the flexible hooks, a bridging piece that closes the lower part of the hole formed in the lower part of this operating lever, and an upward facing to the center of this bridging piece. A movable claw having a substantially U-shaped elastic conductor that has a locking claw projecting from the base and a pair of contact points facing each other in the hole, and is engaged and locked to the locking claw with a locking edge. A contact piece, and a first fixed contact piece and a second fixed contact piece that are arranged to face the base body with the movable contact piece interposed therebetween;
By embracing the holding type holding connection tool integrally provided with the first fixed contact piece, and the locking portion provided in the empty space of the base for locking the holding connection tool. I was able to achieve it.

[Operation] By rotating the operation lever having a pair of hinge bosses pivotally supported in the hinge recess provided between the upper and lower holes of the base body with the hinge boss as a fulcrum, the operation lever is inserted into the lower bridging piece of the operation lever. The attached movable contact piece can establish electrical connection between the first and second fixed contact pieces, and for example, a straight tube lamp can be turned on.

Further, by tilting the operation lever to make the fixed contact pieces non-conductive, for example, the straight tube lamp can be turned off.

The vertical movement and horizontal movement of the operating lever can be prevented by the entire inner peripheral surface of the hinge recess, and the operating lever does not come out of the base body, and the movable contact piece also comes out of the operating lever by the locking action of its own elasticity. Without any misalignment.

That is, the U-shaped movable contact piece is elastically tightly attached by the engaging edge of the engaging claw of the bridging piece formed on the operation lever, so that the U-shaped movable contact piece unintentionally comes out due to external force due to the operation stress of the operation lever. Also, it is possible to surely conduct and cut off the conduction between the first and second fixed contacts without displacement.

[Examples] Examples will be described with reference to the drawings.

The basic configuration of the lever switch of the present invention is as follows. First, in the sectional views for explaining the assembling order shown in FIGS. 1 and 3 to 5, and in the perspective view of the operation lever portion shown in FIG. As shown in FIG. 1 and FIG.
As shown in FIG. 3, flexible hooks 4, 4 that make a pair are provided so as to face each other between the upper and lower cavities 2, 3 of an insulating base body 1 formed of plastic into a substantially hollow rectangular parallelepiped shape, as shown in FIG. As shown in FIG. 4, the hinge bosses 5, 5 of the operating lever 6 as shown in FIG. 2 are dropped against the elastic force of the flexible hook pieces 4, 4 as shown in FIG. 6 is pivotally supported on the base 1.

The operating lever 6 is provided with a bridging piece 6b in the lower part of the operating lever 6 which blocks the lower part of the hole or recess 6a formed as shown in FIG. A locking claw 6c as shown in FIG.

Further, the two contact points 9a, 9a facing each other and the locking edge 9b on the base part
The movable contact piece 9 made of a substantially U-shaped elastic conductive plate as shown in FIG.
The two contact portions 9a, 9a face each other in the hole 6a, and the movable claw 6c is elastically and tightly engaged with the movable contact piece locking edge 9b by the movable contact piece 9a. 9 is provided under the operation lever 6 as shown in FIG.

In this invention, a holding type holding connector 13 as shown in FIG. 12 integrally formed with the first fixed contact piece 10 attached as shown in FIG. 5 after the state of FIG. The locking portion 15 provided in the space 14 of the base 1 (see FIGS. 3 and 11).
(Fig.) And is elastically locked.

Note that FIG. 6 is a bottom view of what is shown in FIG. 5, and the portions having the same reference numerals indicate the equivalent portions or the equal portions, but in particular, the first and second fixed contact pieces 10 and 11 are hatched for easy understanding. Is filled in.

Further, in FIG. 2, a portion indicated by reference numeral 6c is a locking claw (locking hole) for locking the movable contact piece 9 with the locking hole (or locking claw) 9b.

Next, the operation of the lever switch of this invention will be described.

As shown in each of FIGS. 3 to 5, the lever switch according to the present invention has an opposing recessed portion 4a at the base of the flexible hook pieces 4, 4 provided between the upper and lower holes 2, 3 of the base body 1, respectively. 4th in 4a
By rotating the operating lever 6 having a pair of hinge bosses 5 and 5 pivotally supported as shown in FIG. 7 about the hinge boss 5 as shown in FIGS. 7 and 8, the lower bridge of the operating lever 6 is rotated. A movable contact piece 9 inserted into the tangential piece 6b can connect the first and second fixed contact pieces 10 and 11 to each other as shown in FIGS. 8 and 9, for example, a straight tube lamp L. Can be turned on.

Further, as shown in FIGS. 6 and 7, for example, the straight tube lamp L can be turned off by tilting the operation lever 6 to make the fixed contact pieces 10, 11 non-conductive.

The vertical movement and horizontal movement of the operating lever 6 can be prevented by the entire inner peripheral surface of the facing recesses 4a, 4a at the bases of the flexible hook pieces 4, 4 pivotally supporting the hinge boss 5, respectively. The slip-out or movable contact piece 9 also does not slip out of the operation lever due to the locking action of the elastic force of the lever 6 by itself, and is not displaced.

That is, the U-shaped movable contact piece 9 is elastically tightly abutted by the locking edges 9b, 9b to the locking claw 6c of the bridging piece 6b formed on the operation lever 6, and is attached by sandwiching the operation lever. The external force due to the operation stress of 6 does not make a delusion
It is possible to surely connect and disconnect the first fixed contact 10 and the second fixed contact 11 without displacement.

Further, a tube L inserted and connected to the holding connector 13 as required.
The other bulb base 1 opposed to the base 1 of the above is connected to one pole of the power source through the holding connector 3 or other connector or bus bar as described above, and the second fixed contact piece 11 is connected to the power source. By connecting the other pole and rotating the operating lever 6, the first and second
It is possible to turn on or off the tube L or the like by connecting or disconnecting the fixed contact pieces 10 and 11 with the movable contact piece 9.

As an application example of this invention, it can be applied as a blinking switch of a room lamp as shown in FIGS. 9, 10 and 11, where L is a tube 1 and 1 is a cap on both sides of the tube. , F is a transparent hood or lens member, and other reference numerals indicate the same or equivalent portions as those shown in FIGS. 1 to 5.

[Advantages of the Invention] Since the present invention is configured as described above, it has the following effects.

A pair of hinge bosses 5,5 pivotally supported by opposed recesses 4a, 4a at the base of flexible hooks 4,4 provided between the upper and lower holes 2,3 of the base body 1 formed of plastic into a substantially hollow rectangular parallelepiped By rotating the operation lever 6 that is provided for the purpose with the hinge boss 5 as a fulcrum, the lower bridging piece 6b of the operation lever 6 is rotated.
The flexible movable contact piece 9 attached to the can control the conduction between the first and second fixed contact pieces 10 and 11, so that the fixed contact pieces 10 and 11 are not particularly elastic or flexible. Since it does not need to be provided, it has versatility, and further, it has the first and second effects that the operability is good because the operation lever can be arranged facing down on the ceiling or the like.

Further, vertical movement and horizontal movement of the operating lever 6 can be prevented by the entire inner peripheral surfaces of the facing recesses 4a, 4a at the bases of the flexible hook pieces 5, 5 pivotally supporting the hinge boss 4, respectively, and the operating lever 6 can be operated. Even if the load at the time is quite large, it does not come out of the pivotal support portion of the base body 1, so there is no failure and the lever 6 is pivotally supported in that hole, so it does not sink into the delusion at the time of operation, so operability can always be ensured good. There is also a third effect.

Further, since the U-shaped movable contact piece 9 is elastically tightly abutted by the engaging edges 9b, 9b to the engaging claw 6c of the bridging piece 6b formed on the operating lever 6, the operating lever is operated. The first and second fixed contacts do not slip out by the external force due to the operation stress of 6 or the like and are not displaced.
You can connect between 10 and 11 and cut off the connection,
There is a fourth effect that the automation of assembly can be promoted.

In particular, in this invention, the inner surfaces of the contact portions 9a, 9a of the movable contact piece 9 are in a free state, and the hole (recess) 6 of the operation lever 6 is formed.
Since they face each other with a certain space in a, contact points 9a, 9a
The elastic repulsive force of the fixed contact piece 10,11
Even if it is not an elastic conductive material, there is a fifth effect that it is possible to satisfactorily conduct electricity between these fixed contact pieces by using the elastic movable contact pieces and to make them non-conductive.

[Brief description of drawings]

Each of the drawings shows one embodiment of the present invention, and FIGS. 1 and 3 to 5 are sectional views for explaining the assembling order, FIG. 2 is a perspective view of an operating lever portion, and FIG. 5 is a bottom view of what is shown in FIG. 5, FIG. 7 is an operation explanatory view in which the base body is a cross section, FIG. 8 is an explanatory view showing the same state as FIG. 7, and FIG. 9 is a lever switch device of the present invention. FIG. 10 is a vertical sectional elevation view showing an example in which the above is applied to a room lamp for automobiles, etc., FIG. 10 is a schematic cross-sectional side view of the same, FIG. 11 is an exploded perspective view of the one shown in FIG. 9 before assembly, and FIG. It is sectional drawing which shows the other example of a tool. DESCRIPTION OF SYMBOLS 1 ... Base | substrate, 6b ... Bridging piece 2,3,14 ... Cavity, 6c ... Locking claw 4 ... Flexible hook piece, 9 ... Movable contact piece 4a ... Recess at the base of a flexible hook piece, 9a ... Contact part 10 , 11 ... Fixed contact piece 5 ... Hinge boss, 12 ... Female connection part 6 ... Operating lever, 13 ... Holding connection tool 6a ... Hole (recess), 15 ... Locking part

Claims (1)

[Scope of utility model registration request] 1. An insulative base body 1 formed of plastic into a substantially hollow rectangular parallelepiped shape, flexible hook pieces 4 and 4 formed between upper and lower voids 2 and 3 of the base body 1, and these flexible hook pieces. An operating lever 6 pivotally supported by engaging a pair of hinge bosses 5,5 in the recesses 4a, 4a between 4,4 and a bridging piece 6b for closing the lower part of a hole 6a formed in the lower part of the operating lever 6. And a locking claw 6c protruding upward in the center of the bridging piece 6b, and a pair of contact portions 9a, 9a facing each other in the hole 6a, and the locking claw 6c.
A movable contact piece 9 made of a substantially U-shaped elastic conductor, which is engaged and locked with a locking edge 9b, and a first fixed contact piece 10 arranged to face the base body 1 with the movable contact piece 9 interposed therebetween. And a second fixed contact piece 11, and a holding type holding connector 13 in which the first fixed contact piece 10 is integrally projectingly provided, and an empty space of the base body 1 for locking the holding connection tool 13. A lever switch device, each of which is provided with a locking portion 15 provided at a place 14.