JP2899639B2 - Rotary switch - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary switch that opens and closes an electric circuit by operating a switch mechanism by turning an operation unit.

[Prior Art] As a conventional rotary switch of this type, there is, for example, one disclosed in JP-A-63-232225.

In this device, a cam having a switch operating cam portion and a positioning cam portion is rotatably mounted via a rotating shaft,
A movable terminal is arranged corresponding to the switch operation cam part, a fixed terminal is arranged corresponding to the movable terminal, and a square-shaped movable piece is arranged so as to be movable left and right in the main body, A concave portion is formed on the left side surface, a coil spring is elastically loaded in the concave portion, and an arc-shaped protrusion is provided on the left inner surface of the square-shaped movable piece, and the arc-shaped protrusion contacts the positioning cam portion. I'm sorry.

[Problems to be Solved by the Invention] However, in such a conventional rotary switch, a rotary-shaped movable piece is rotated in a body against a biasing force of a coil spring by rotating a rotary shaft integral with a cam. The structure was such that the switch was moved right and left to give a sense of moderation when the switch was opened and closed, making it difficult to reduce the size of the device. There is a problem that the operating force for the operation cannot be reduced.

That is, in order to smoothly perform the sliding operation of the square-shaped movable piece that reciprocates right and left, it is necessary to set an appropriate gap between the switch body and the square-shaped movable piece. However, the switch body and the like are formed of a synthetic resin insulating material, and the gap must be set in consideration of shrinkage and the like during molding, but this gap greatly changes due to variations in materials and molding conditions. I do. As a result, if the gap is too narrow, the sliding resistance increases and the rotation of the rotating shaft is hindered, and the sense of moderation during operation becomes poor.On the other hand, if the gap is too wide, play increases, and if it is poor, the switch There was a problem that the side surface of the square-shaped movable piece was pinched and rotation failure occurred.

The present invention has been made in view of such a conventional problem, in which a rotating cam is rotated by a rotating main shaft meshed with a gear, and a movable spring is elastically deformed by a cam portion provided on the rotating cam. A movable shaft and a fixed contact are opened and closed, and at least one of the rotating seed shaft and the rotating cam is provided with a square shaft portion, and a leaf spring is pressed against the square shaft portion to rotate the spring due to the strength of the spring force. It is an object of the present invention to solve the above-described problem by giving a sense of moderation.

[Means for Solving the Problems] In order to achieve the above object, a rotary switch according to the present invention includes a connection quick-connecting terminal having a connection portion for an external electric wire inside a body composed of a case body and a lid. A plurality of movable springs are provided, wherein at least one of the connection quick-connecting terminals is provided with a fixed contact, and at least one of the connection quick-connecting terminals is provided with a movable contact capable of contacting the fixed contact. A rotating cam having a cam portion and a driven gear slidingly in contact with the movable spring; a driving gear meshing with the driven gear; one end protruding outside the body and a detachable knob. A rotatable main shaft and a rotatable main shaft are provided between the case body and the lid so as to be rotatable, and the movable contact and the fixed contact can be freely opened and closed via the rotatable cam by the rotation of the rotatable main shaft. Switch mechanism In addition, the quick connection terminal for connection is housed and arranged in the body of a module for two or three continuous wiring devices.

Further, in addition to the above configuration, at least one of the rotating main shaft and the rotating cam is provided with a polygonal angular shaft portion, and a pair of leaf springs pressed against the angular shaft portion are formed as the movable spring of the case body. The movable contact and the fixed contact can be freely opened and closed via the rotation cam by the rotation of the rotation main shaft, and the rotation of the rotation contact is provided between the pair of mounting grooves provided in the right angle direction. The switch mechanism and the connection quick-connecting terminal, which give a sense of moderation by the square shaft portion and the leaf spring, are housed and arranged in the body of a module for two or three continuous wiring devices. Further, the leaf spring is formed of a plate-like spring member provided with a pressing piece projecting laterally at a central portion, and an extending piece extending laterally from the pressing piece. Creases are provided at a plurality of locations in the longitudinal direction to form press-contact portions independent of the press piece on both sides of the press piece, and three points, the tip of the press piece and the press-contact portions on both sides, protrude in the same direction. Along with pressing against the angular portion of the rotating main shaft, each pressing portion is pressed against the angular portion of the rotating cam to impart a sense of moderation to the rotation of the rotating main shaft and the rotating cam, respectively.
In addition, a polygonal angular shaft portion is provided for each of the rotating main shaft and the rotating cam, and the pressing piece is pressed against the angular shaft portion of the rotating main shaft, and the pressing shaft is pressed against the angular shaft portion of the rotating cam. And pressing both ends of the leaf spring into a pair of mounting grooves provided in a direction perpendicular to the movable spring of the case body, and furthermore, a boundary between the pressing piece and the press contact portion. The part is inserted and held in the intermediate mounting groove of the case body to form a press contact part independent of the pressing piece.

[Operation] When the rotating main shaft rotatably fixed to the body including the case main body and the lid is rotated, the rotating cam having the driven gear meshing with the driving gear provided on the rotating main shaft is rotated. The movable spring is elastically deformed by the cam action of the cam portion provided on the rotating cam to move the movable contact, and the movable contact and the fixed contact provided on the quick connection terminal for connection are separated and separated. To turn the electrical circuit on and off.

At the same time, a plate spring provided on at least one of the rotating main shaft and the rotating cam, which is in sliding contact with the square shaft, can increase or decrease the rotating resistance according to the unevenness of the square shaft,
Thereby, the sense of moderation at the time of the turning operation of the turning main shaft can be reliably detected.

Example Next, an example of the present invention will be described with reference to the drawings.

1 to 14 show an embodiment of the present invention.
It is the figure applied to the rotary switch which has the switch mechanism which can be changed in three steps.

First, the configuration will be described. In FIG. 1 to FIG. 7, reference numeral 1 denotes a body, and the body 1 includes a case body 2 having a concave portion for accommodating a switch mechanism and other parts, and a case body. 2 that is attached to the cover 2 to close the recess
And a decorative plate 4 attached to the lid 3 and a decorative plate 4
And a pair of plate holders 5 for engaging and holding the plate.

The case body 2 has eight wire insertion holes 6a to 6h into which wires are individually inserted, and four tool insertions for releasing the locking by moving a release button 7 for locking the inserted wires. Hole
8a to 8d are provided to open downward. In the recessed portion of the case body 2, two movable-side connection quick-connecting terminals 9a and 9b having two external-wire connection portions and one fixed-side connection quick-connection terminal 10 are provided. Two fixed-side connection quick-connecting terminals 11a and 11b having a connection portion at one place,
In addition, a pair of leaf springs 14 and the like are housed in two pieces for suppressing the rotation of the two rotation cams 13 and giving a sense of moderation at the time of rotation.

Each connection quick-connecting terminal 9a, 9b, 10, 11a, 11b is formed by bending a copper alloy into a U-shape, and two movable-side connecting quick-connecting terminals 9a, 9b are connected by a conductive connecting terminal 40. Connected and electrically connected. The connection quick-connecting terminal 9b has two presser springs 15, and the connection quick-connecting terminals 10, 11a, 11b have one presser spring 15. And quick connection terminals 9a, 9b, 10 for connection
The contact pieces 16 are formed by bending upwardly the protrusions provided on both sides of the longitudinally intermediate portion, and the connection quick connection terminals 11a and 11b are provided on one side of the longitudinally intermediate portion. The contact pieces 17 are respectively formed by bending the provided protrusions upward.

Fixed contacts 18a, 18b, and 18c are fixed to the other three fixed-side contact pieces 16, 17 except one contact piece of the connection quick-connecting terminal 10, and one of the connection quick-connecting terminals 9b. The base ends of three movable springs 19a, 19b, and 19c are fixed to the other three movable-side contact pieces 16 except for one of the contact pieces. Each movable spring 19a, 19b, 19c extends in the direction of the contact piece 17 so as to traverse the center space of the recessed portion, and each movable end is movable so that it can individually contact the fixed contact 18a, 18b, 18c. Contact 2
0a, 20b and 20c are fixed respectively.

The connection quick connection terminals 9a, 9b, 10, 11a, 11b are
Corresponding to 6a to 6h, the U-shaped opening side is housed in the case main body 2 with the opening side facing the bottom side, and the pair of the laterally protruding wall 21 and the vertically protruding wall 22 is bent at each opening side. Deformation is prevented. Such connection quick connection terminals 9a, 9b, 10, 11a, 11b
And the presser spring 15 provided inside thereof form screwless terminals, respectively.

The presser spring 15 has one end bent in a U-shape and the other end bent in an S-shape, thereby extending diagonally upward at both ends to lock the electric wire at the leading edge to prevent slipping. The locking part that can be set is set. The inner end faces of the release buttons 7 arranged above the tool insertion holes 8a to 8d are opposed to the respective locking portions. Therefore, by pressing the release button 7 inward against the spring force of the holding spring 15 with a tool such as a screwdriver, the holding spring 15 is elastically deformed, and the quick connection terminals 9b, 10, 11a, 11b are connected. Can be released from the lock of the electric wire held therebetween.

The rotating main shaft 12 is arranged substantially at the center of the body 1 and has two rotating cams 13a,
13b is arranged. As shown in FIG. 11 and the like, the rotating main shaft 12 includes a driving gear 23 provided in a middle portion in the axial direction, and a square shaft portion 24 provided on one side of the driving gear 23. Part 24
The lower end is rotatably fixed to the case main body 2 with the axis centered in the up and down direction with. The upper end of the rotating main shaft 12 penetrates through the through hole 25 formed in the lid 3 and protrudes to the outside of the body 1, and the middle part is rotatably fixed to the lid 3.
A notch is provided at a tip portion of the rotating main shaft 12 protruding above the lid 3, and a knob 26 is removably inserted into the tip portion. Reference numeral 35 denotes a stopper provided on the upper surface of the drive gear 23.

As shown in FIGS. 12 (a) to 12 (d) and the like, the rotating cams 13a and 13b include a driven gear 27 meshing with the driving gear 23, a cam portion 28 provided on one side of the driven gear 27, and A corner portion 29 provided on one side of the cam portion 28, and the lower end is rotatably fixed to the case body 2 in a state where the axis is oriented vertically with the corner portion 29 facing down. ing. A bearing hole 30 that opens upward is provided at the upper part of each of the rotating cams 13a and 13b.
The lid 3 is provided with a bearing projection 31 corresponding to
The rotating cam 13a,
The upper end of 13b is rotatably fixed to the lid 3 respectively. Further, the cam portion 28 of the rotating cams 13a and 13b has an inner angle θ of 135.
It has a cam surface with two protruding projections 28a, 28b. Reference numeral 32 denotes a mark provided on the upper surface of the driven gear 27 for indicating the positions of the projections 28a and 28b.

The angular shaft portion 24 of the rotating main shaft 12 and the angular shaft portion 29 of the rotating cams 13a and 13b are both octagonal in cross section, and the leaf spring 14 is disposed so as to sandwich these from both sides. . As shown in FIG. 13 and the like, the leaf spring 14 is a pressing piece projecting sideways.
33 is made of a long and thin plate-like spring material provided at the center part, and the pressing piece
Three places, the tip of 33 and the pressure contact pieces 34 on both sides, protrude in the same direction.

Both ends of the leaf spring 14 are inserted and held in a pair of mounting grooves (14a, 14d) provided in the longitudinal direction of the case body 2, and a boundary between the pressing piece 33 and the pressure contact piece 34 is provided in the case body. Inserted into the intermediate mounting grooves (14b, 14c).
Thereby, the tip of the pressing piece 33 is pressed against the angular shaft portion 24 of the rotating main shaft 12, and each press contact piece 34 is pressed against the angular shaft portion 29 of the rotating cam 13 to rotate the rotating main shaft 12 and the rotating cam. The rotation of 13 is suppressed. Therefore, the spring force of the leaf spring 14 changes in strength based on the continuous length change in the radial direction of the square shaft portions 24, 29, and the change in the spring force causes a sense of moderation when turning the knob 26. Can be provided.

The rotating main shaft 12 and the rotating cams 13a and 13b having the above-described configuration have a relationship as shown in FIGS. 6 and 14 (a) to (d) to form the driving gear 23 and the driven gear 27. This makes up a three-stage switching mechanism having an operation to be described later. That is, FIG. 14 (a)
As shown in the figure, the first rotating cam 13a is moved relative to a center line L passing through the axis of the rotating main shaft 12 and the two rotating cams 13a and 13b.
, The right projection 28a having the inner angle θ coincides with the second rotation cam 13b, and the right projection 28a having the inner angle θ is set in a direction orthogonal to the right projection 28a. The pressing piece 33 is provided on the square shaft portion 24 of the rotating spindle 12.
Further, pressure contact pieces 34 are brought into contact with the angular shaft portions 29 of the rotating cams 13a and 13b, respectively. Further, the movable spring 19a contacts the cam portion 28 of the rotating cam 13a from one side, and the movable springs 19b and 19c contact the cam portion 28 of the rotating cam 13b from both sides.

As shown in FIGS. 8 (a) to 8 (e), the lid 3 comprises a box portion 3a having a concave portion for accommodating the gears 23, 27 and the like, and flange portions 3b provided on both sides thereof. And 2
The bearing projections 31 are integrally formed by projecting into the recessed portions. A boss 3c is provided at the center of the upper surface of the box 3a, and the through hole 25 is formed at the center of the boss 3c. Reference numeral 36 denotes a window hole for an indicator light. In the case of a switch with an indicator light, a reflector or the like is attached, and in the case of a switch without an indicator light, a non-light emitting plate or the like is attached. 37 is the lid 3
A concave portion for positioning the plate holder 5 with respect to
Reference numeral 38 denotes a restriction protrusion for restricting the movement of the release button 7. Further, reference numeral 39 denotes a stopper receiving portion for restricting the rotation angle of the rotation main shaft 12, which is set on the rotation locus of the stopper 35 of the rotation main shaft 12.

A decorative plate 4 is placed on the upper surface of the lid 3, and a boss receiving hole 41 provided in the decorative plate 4 is fitted to the boss 3c. Decorative board 4
As shown in FIGS. 9 (a) to 9 (e), the upper surface portion 4a covers the upper surface of the lid 3 and the side surface portion 4b surrounding the lower surface periphery of the upper surface portion 4a. The boss receiving hole 41 is provided at the center of the bulging portion 4c which bulges to the back side.
Is formed. Further, on the back surface of the decorative plate 4, four leg pieces 42 for fixing the decorative plate 4 to the container body 1 side are provided, and a claw portion 43 protruding inward is formed at the tip thereof.

As shown in FIGS. 10 (a) to 10 (e), the plate holder 5
It comprises a rectangular plate body portion 5a, an upper edge portion 5b and a lower edge portion 5c provided on both sides in the width direction so as to protrude in opposite directions,
Inside the upper edge portion 5b, a step portion which can be engaged with the concave portion 37 and positioned can be formed. Further, at both ends of the upper edge portion 5b, claw portions 44 projecting in the same direction as the lower edge portion 5c are formed, and by engaging the claw portions 43 with the claw portions 44, the decorative plate 4 1 can be fixed.

The plate holder 5 having such a configuration is a box portion of the lid 3.
3a is mounted so as to sandwich it from both sides, and two sets of lid stopper plates 45 are fixed thereon. A bifurcated portion 46 is provided at each end of the lid stopper plate 45, and the lid 3 and the plate holder 5 are fastened to the case main body 2 by expanding them outward and engaging with the convex portions of the case main body 2. Can be fixed. Further, an engagement protrusion 47 for attaching to the wiring device attachment frame is provided in the middle of the lid stopper plate 45.

 Next, the operation of the present embodiment will be described.

FIG. 15 and FIG. 16 are views showing a state where the rotary switch A having the above-described configuration is mounted on a wiring device mounting device for mounting on a wall of a building or the like.

The wiring device mounting apparatus includes a mounting frame 50 to which other wiring devices such as the rotary switch A and the toggle switch B can be removably mounted, and a reinforcing frame for mounting the mounting frame 50 to a building wall or the like (see FIG. (Not shown), an exterior frame 51 for covering the peripheral edge of the reinforcing frame, a decorative plate 52 for closing an opening set inside the exterior frame 51, and the like.

FIG. 6 showing the internal mechanism of the rotary switch A shows a state in which the first contact is closed and the second and third contacts are opened, and the respective cam portions 2 of the rotating cams 13a and 13b at that time.
FIG. 14 (a) shows the positional relationship of FIG. In this state, since the first protrusion 28a of the first rotating cam 13a presses the first movable spring 19a, the movable contact 20a is fixed to the fixed contact 18a.
And the first contact is in an energized state. On the other hand, since the second and third movable springs 19b and 19c are in contact with the base circle of the second rotating cam 13b, the second contact between the fixed contact 18b and the movable contact 20b and the movable contact with the fixed contact 18c are movable. The third contact with the contact 20c is separated from each other and is in a non-energized state.

From this state, when the rotating main shaft 12 is rotated clockwise by one notch (1/8 of 360 degrees = 45 degrees) of the angular shaft portion 24 via the knob 26, as shown in FIG. The first and second rotating cams 13a and 13b are both rotated counterclockwise by the action of the driven gear 27 meshing with the driving gear 23 of the rotating main shaft 12.
As a result, the pressing force of the first projection 28a that has pressed the first movable spring 19a is released, so that the movable contact 20a separates from the fixed contact 18a and the first contact changes to a non-energized state. . On the other hand, the second protrusion 28b of the second rotating cam 13b
Presses the second movable spring 19b, the movable contact 20b comes into contact with the fixed contact 18b, and the second contact changes to an energized state. On the other hand, since the third movable spring 19c slides on the base circle of the second rotary cam 13b, the third contact between the fixed contact 18c and the movable contact 20c is maintained in a non-energized state while being kept separated. .

Further, when the knob 26 and the notch 26 are rotated clockwise by one notch, the first and second rotary cams 13a and 13b are both rotated counterclockwise as shown in FIG. Movable spring 1
While the pressing force of the second protrusion 28b pressing the 9b is released, the first protrusion 28a presses the third movable spring 19c. As a result, the movable contact 20b separates from the fixed contact 18b and the second contact changes to a non-energized state, and the movable contact 20c contacts the fixed contact 18c to change the third contact to an energized state. On the other hand, since the first movable spring 19a slides on the base circle of the first rotating cam 13a, the first contact between the fixed contact 18a and the movable contact 20a is kept open and is not energized. Maintain state.

When the knob 26 is rotated counterclockwise by one notch from the state shown in FIG. 2A, as shown in FIG.
The first and second rotating cams 13a and 13b both rotate clockwise. Therefore, the pressing force of the first projection 28a of the first rotary cam 13a that has pressed the first movable spring 19a is released, and the second and third movable springs 19b and 19c are moved to the second position. Since it only slides on the base circle of the cam portion 28 of the rotary cam 13b, all the fixed contacts 18a to 18c and the movable contacts 20a to 20c are separated, and the first to third contacts are All are in a non-energized state.

At this time, a pressing piece 33 is pressed against the square shaft portion 24, and a pressing piece 34 is pressed against the square shaft portion 29, and their spring force is applied to one side of the square shaft portions 24, 29, the leaf spring 14, Is parallel minimum and increases with increasing radial length until the diagonal of the corner and the leaf spring 14 are at right angles (1 / notch of one notch)
2) During the subsequent 1/2 notch, on the contrary, the spring force decreases as the rotation angle increases. Therefore, this leaf spring 14
By the increase and decrease of the spring force, a sense of moderation at the time of operation can be reliably given to the operator.

Note that, in the above embodiment, an example in which an octagonal column is applied to the square shaft portions 24 and 29 has been described.However, the present invention is not limited to this, and a square, a pentagon, a hexagon,
Various shapes such as a heptagon, a decagon, and a dodecagon can be applied. In this case, since the number of notches per rotation corresponds to the number of corners of the column, it is necessary to set the shape of the cam portion accordingly. The vertical relationship between the cam portion 28 and the square shaft portions 24, 29 may be set upside down.

Further, in the above-described embodiment, an example was described in which three movable springs were used and applied to a three-stage switching mechanism. However, at least one movable spring may be used.
In the case where the number is four, the switch mechanism is only on one side, and when four pieces are used, the switch mechanism is a four-stage switching mechanism.

Further, the connection quick-connecting terminals 9a, 9b, and 10 having the connection portions of the external wires at two locations can be divided into two at the center to form two connection quick-connecting terminals. By combination with the quick connection terminals 11a and 11b, a two-pole switch having two different electric circuits can be configured.

[Effects of the Invention] As described above, the present invention is configured as described above, and has the following effects.

The rotary cam having a driven gear meshing with a drive gear provided on the rotary main shaft is rotated by rotating the rotary main shaft rotatably fixed to a body composed of a case body and a lid, and the rotary cam is rotated. Since the movable spring is elastically deformed by the cam portion provided on the rotating cam to open and close between the movable contact and the fixed contact, a member that reciprocates like a conventional square-shaped movable piece can be eliminated, Therefore, the size of the entire switch device can be reduced. Moreover, since the reciprocating operation of the square-shaped movable piece does not occur as in the prior art, the turning operation can be performed with a relatively small operating force, and the opening and closing operation of one or more switch mechanisms can be reliably performed. it can.

Further, since a leaf spring is pressed against the rotating main shaft or the angular shaft portion of the rotating cam, and the spring force imparts a sense of moderation during the rotating operation, the moderating feeling during the rotating operation is simplified. However, it can be surely given. In particular,
The conventional industrial rotary switch has a drawback that the operating force is too heavy for the relatively small breaking current rating, but according to the present invention, the breaking current rating for installation in a general home is large and light. It is possible to provide a rotary switch that can provide a sense of moderation by operating force.
Further, an external electric wire can be connected only by inserting the covered electric wire from the electric wire insertion hole, and an effect that a rotary switch that can be easily installed can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view taken along line II of FIG. 4 showing an embodiment of the present invention, FIG. 2 is a sectional view taken along line II-II of FIG. 4, and FIG. FIG. 4 is a front view, FIG.
FIG. 5 is a plan view showing a state in which the decorative plate and the knob are removed, and FIG. 6 is a plan view showing a state in which the lid is also removed.
7 shows a bottom view, FIG. 8 shows a lid according to the present invention, FIG. 7 (a) is a front view, FIG. 7 (b) is a side view, and FIG. (D) is a bottom view, (e) is a cross-sectional view taken along the line III-III of FIG. (A), and FIG. 9 shows a decorative plate similarly, and FIG. (B) is a bottom view, (c) is a cross-sectional view taken along the line IV-IV of (a), (d) is a front view, (e) is a V- view of (a) of FIG. FIG. 10 is a plan view, FIG. 10 (b) is a right side view, FIG. 10 (c) is a left side view, and FIG. (d) is a front view, (e) is a sectional view taken along the line VI-VI of (a), and (f) is (a) of FIG.
FIG. 11 is a perspective view of the rotary main shaft, and FIG. 12 is a view of the rotary cam.
Is a front view, (b) is a plan view, (c) is a bottom view,
13D is a sectional view taken along the line VIII-VIII of FIG. 13A, FIG. 13 is a perspective view of the same leaf spring, and FIGS. 14A to 14D are explanatory views showing the operation of the switch mechanism. FIG. 15 is a front view showing an example of a use state of the rotary switch according to the present invention, and FIG. 16 is a side view of the same. 1: Container, 2: Case body 3: Lid, 4: Decorative plate 5: Plate holder 9a, 9b, 10, 11a, 11b: Quick connection terminal 12: Rotating spindle, 13a, 13b: Rotating Cam 14: leaf spring 18a, 18b, 18c: fixed contact 19a, 19b, 19c: movable spring 20a, 20b, 20c: movable contact 23: drive gear, 24, 29: square shaft 27: driven gear, 28: cam 31; bearing protrusion, 33: pressing piece 34: pressure contact piece, 40: connecting terminal

Claims (5)

(57) [Claims] 1. A plurality of connection quick-connecting terminals each having a connection portion for an external electric wire are provided inside a body comprising a case body and a lid, and at least one of the connection quick-connecting terminals has a fixed contact. In addition to the above, a rotary spring having a movable contact having a movable contact capable of contacting the fixed contact is provided on at least one other of the connection quick-connecting terminals, and a rotary cam having a cam portion slidingly contacting the movable spring and a driven gear. And a rotating main shaft having a driving gear meshing with the driven gear and having one end protruding outside the body and removably engaging the knob, respectively, between the case body and the lid. A switch mechanism and a connection quick-connecting terminal for connecting and disconnecting between the movable contact and the fixed contact via the rotating cam by the rotation of the rotating main shaft for two continuous wiring devices; Accommodates and arranges inside three modules Rotary switch, characterized in that the. 2. A plurality of connection quick-connecting terminals each having a connection portion for an external electric wire are provided in a body comprising a case body and a lid, and at least one of the connection quick-connecting terminals has a fixed contact. In addition to the above, a rotary spring having a movable contact having a movable contact capable of contacting the fixed contact is provided on at least one other of the connection quick-connecting terminals, and a rotary cam having a cam portion slidingly contacting the movable spring and a driven gear. And a rotating main shaft having a driving gear meshing with the driven gear and having one end protruding outside the body and removably engaging the knob, respectively, between the case body and the lid. At least one of the rotating main shaft and the rotating cam is provided with a polygonal square shaft portion, and a pair of leaf springs pressed against the square shaft portion are perpendicular to the movable spring of the case body. Between each pair of mounting grooves The movable contact and the fixed contact can be freely opened and closed via the rotation cam by the rotation of the rotation main shaft, and a sense of moderation at the time of rotation is provided to the square shaft portion by a leaf spring. A rotary switch characterized in that the switch mechanism and the quick connection terminal provided are housed and arranged in the body of a module for two or three continuous wiring devices. 3. The plate spring comprises a plate-like spring member provided with a pressing piece projecting laterally at a central portion, and an extending piece extending laterally from the pressing piece. Creases are provided at a plurality of locations in the longitudinal direction of the protruding piece to form press contact portions independent of the press piece on both sides of the press piece, and three points, the tip of the press piece and the press contact portions on both sides, protrude in the same direction. Of the rotation main shaft and the rotation shaft are pressed against the angular shaft portion of the rotation main shaft, and each press contact portion is pressed against the angular shaft portion of the rotation cam to impart a sense of moderation to the rotation of the rotation main shaft and the rotation cam, respectively. Claim (1) or (2)
The rotary switch according to 1. 4. A polygonal angular shaft portion is provided on each of the rotating main shaft and the rotating cam, and the pressing piece is pressed into contact with the angular shaft portion of the rotating main shaft, and the rotating shaft is fixed to the angular shaft portion of the rotating cam. 4. The rotary switch according to claim 3, wherein the pressure switch presses the pressing portion. 5. Both ends of the leaf spring are inserted into a pair of mounting grooves provided in a direction perpendicular to the movable spring of the case body, and a boundary between the pressing piece and the pressure contact portion is connected to the case body. The rotary switch according to claim 4, wherein a press-contact portion independent of the pressing piece is formed by being inserted and held in the intermediate mounting groove.