JP3439251B2 - Push operation switch - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressing operation switch having a plurality of fixed contacts and movable contacts and having a built-in mechanism for bringing the movable contacts into and out of contact with the fixed contacts by a pressing operation.

[0002]

2. Description of the Related Art A multi-stage switch having a plurality of fixed contacts and a movable contact built therein and having a function of changing the connection state of an electric circuit by gradually contacting and separating each movable contact with each other is disclosed in Japanese Patent Laid-Open No. There is a rotary switch disclosed in Japanese Patent Laid-Open No. 232225 and a rotary switch previously proposed by the present inventor (see Japanese Patent Laid-Open No. 4-149921). Each of these conventional rotary switches has a structure in which a built-in cam is rotated by rotating a knob, and each movable contact is brought into contact with or separated from a fixed contact in association with the rotating operation of the cam. .

[0003]

[Problems to be Solved by the Invention] It is said that Japan will surely reach an aging society in the near future. However, the conventional indoor wiring equipment is not necessarily good in operability for elderly people or persons with physical disabilities. This is probably because the low and middle age groups have been dominated in the past, and there were social circumstances in which elderly people could easily receive care and help for these younger generations.

However, in the future aging society, it is inevitable that even elderly people will have to work with their own limbs as much as they can. In view of such a future social situation, the present inventor has proceeded with the development of an indoor wiring device having good operability even for an elderly person or a physically handicapped person, and completed the present invention. That is, the conventional rotary switch has a structure in which the internal switch mechanism is operated by the turning operation of the knob, but such a turning operation of the knob is not always easy to operate for an elderly person or a physically handicapped person. Absent.

Therefore, an object of the present invention is to provide a pressing operation switch which can be easily and surely operated by an elderly person or a physically handicapped person. Another object of the present invention is to provide a pressing operation switch that can easily realize arbitrary multi-stage switching according to an electric circuit to be connected.

[0006]

In order to achieve the above object, the pressing operation switch of the present invention is characterized by having the following structure. A plurality of pairs of fixed and movable contacts provided inside the body. A plurality of conductive movable contact support members that support the movable contacts so that they can be freely contacted and separated from the fixed contacts. Or a plurality of movable side connection terminals One or a plurality of fixed side connection terminals that connect each fixed contact to an external electric wire.Each conductive movable contact support member is independently moved by the rotation operation, and the conductive movable contact support member supports it. A plurality of cam members that move and separate the movable contact from and away from the fixed contacts. Cam rotation restraining means that restrains the free rotation of each cam member. Cam driving means that rotates each cam member by a predetermined angle. A pushing operation body which is provided and moves by external pushing operation to operate the cam driving means.

In the above construction, each cam member, cam rotation restraining means, and cam driving means can be constructed as follows. That is, each cam member is provided on one shaft, and the cam rotation inhibiting means is integrally provided on the shaft where the cam members are continuous, and has a polygonal step wheel,
A stopper wheel that elastically presses against the step wheel is provided, and the cam driving means is integrally provided on the shaft connecting the cam members, and the push operation is attached to the push operation body. An operating rod that engages with the ratchet wheel in conjunction with the body and rotates the ratchet wheel by a predetermined angle.

More specifically, the step wheel and the ratchet wheel are integrally formed, and the integrally formed step wheel and the ratchet wheel can be detachably connected coaxially with each other, and At the time of connection, the posture angle around the axis between the cam members may be set arbitrarily.

In addition to the above-mentioned structure, the pressing operation switch of the present invention has a display window formed on the pressing operation body and a plurality of display portions on the peripheral surface showing the connection state of the movable contact and the fixed contact. However, a display body that is rotatably provided inside the push operation body and that selectively disposes the display unit in the display window according to the rotation operation, and a display switch that suppresses the free rotation of the display body. It is characterized in that it is provided with a restricting means and a display body driving means for rotating the display body by a predetermined angle in response to the operation of the cam member.

Further, the display body driving means is attached to the display switching pawl wheel that rotates integrally with the display body, and is attached to the push operating body and engages with the display switching pawl wheel in conjunction with the push operating body. And a display switching actuating rod for rotating the display switching claw wheel by a predetermined angle, and the display switching restricting means is
It may be configured to include a display switching inhibiting member that elastically presses against the display switching claw wheel.

[0011]

According to the present invention having the above-mentioned structure, the cam member is rotated by the cam drive means by merely pushing the pushing operation member, and the conductive movable contact supporting member interlocking with the cam member is actuated to move. Move the contact away from the fixed contact. This pressing operation is easier than the operation of turning the knob, and can be easily and surely performed by the elderly and the like. In addition, a display window is formed on the pushing operation body, and the connection state of the movable contact and the fixed contact on this display window corresponds to the energization state of the electric circuit such as "strong""medium""weak""off". If it is displayed in characters, the desired operation can be performed accurately.

Further, if a step wheel and a ratchet wheel are integrally formed, and an arbitrary number of cam members can be connected by arbitrarily setting the posture angles around the shafts, they can be connected according to the electric circuit to be connected. Multi-stage switching can be easily realized.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 8 are views for explaining the first embodiment of the present invention. First, the pressing operation switch according to the first embodiment will be described with reference to these drawings.

As shown in FIGS. 1 and 2, the pressing operation switch 1 includes a case body 4 composed of a case body 2 and a lid body 3, a decorative plate 5 detachably attached to the surface of the case body 4, and The external appearance is constituted by operation buttons (pushing operation bodies) 6 exposed from the surface of the body 4. A swing switch 7 is integrally provided at the bottom of the body 4 (see FIG. 1),
The pressing operation switch 1 of the present embodiment performs multi-step switching, and the swing switch 7 turns ON / OFF the electric circuit.
It enables the operation of other electric circuits. The swing switch 7 may be formed integrally with the body 4 of the pressing operation switch 1.

As shown in FIG. 2, the decorative plate 5 is divided into an inner frame plate 8, a middle frame plate 9 and an outer frame plate 10, and an engaging step portion 1 formed on the inner peripheral edge of the outer frame plate 10.
0a is engaged with the outer peripheral edge of the middle frame plate 9,
By engaging the engagement protrusion 9a protruding from the back surface of the middle frame plate 9 with the engagement groove 8a formed in the bottom piece of the inner frame plate 8, the plates are integrated.
Then, by engaging the engagement protrusions 8b protruding from the inner peripheral edge of the inner frame plate 8 to the back surface side with the engagement protrusions 3a formed on the lid body 3, the decorative plate 5 can be attached to the body 4. Has become.

As shown in FIG. 5, a plurality of fixed contacts 12 fixed to a fixing metal fitting 11 are provided on one side of the case body 2 which constitutes the body 4, as will be described below in this embodiment as three. It is arranged. In addition, at least the fixed contact 1 is provided on the bottom of the case body 2, that is, below the fixing fitting 11.
The number of fixed side connection terminals 13 (3 in FIG.
(See FIG. 8). Each connection terminal 13 has a screwless terminal structure as shown in FIG. 3, and is electrically connected to the fixing metal fitting 11. Although this screwless terminal structure is already well known, a detailed description thereof will be omitted. In short, when the external wire is inserted through the wire insertion hole 14 formed in the bottom wall of the case body 2, the fixing metal fitting 11 and the pressing spring 15 are separated from each other. It holds the external electric wire and fixes it.

Further, on the other side of the case body 2, as shown in FIG.
As shown in FIG. 3, a conductive movable spring (conductive movable contact support member) 17 having a base end fixed to a fixing member 16 has a fixed contact 12
The number (3) corresponding to the above is provided, and the movable contacts 18 are fixed to the tip ends of these movable springs 17, respectively.
Each movable contact 18 comes into contact with and separates from the fixed contact 12 by the elastic bending of the movable spring 17. As shown in FIG. 4, the movable spring 17 constantly urges the movable contact 18 in the direction of contacting the fixed contact 12 (downward in the figure).

Fixing fitting 16 to which movable spring 17 is fixed
A movable side connection terminal 19 is provided below the. These movable side connection terminals 19 have a screwless terminal structure similarly to the fixed side connection terminals 13 described above, and are electrically connected to the fixed metal fittings 16. Further, in this embodiment, as shown in FIG. 8, the movable side connection terminals 19 are electrically connected.

Here, in the case of forming the wiring structure as shown in FIG. 8, it suffices to have one movable-side connecting terminal 19, but in the present embodiment, an electric circuit other than that shown in FIG. A plurality of movable side connection terminals 19 are also provided in order to have versatility so that the electric circuit can be wired. When the fixed side connection terminals 13 are electrically connected and the movable side connection terminals 19 have independent wiring structures, on the contrary, only one fixed side connection terminal is required.

The central portion of the case body 2 is shown in FIGS.
As shown in FIG. 3, a combination of a plurality of cam members 20, step wheels 21, and ratchet wheels 22 is provided. Both ends of this combined body are rotatably supported by both side walls of the case body 2. Three of the cam members 20 are respectively arranged below the movable spring 17, and the step wheel 21 and the ratchet wheel 22 are arranged substantially at the center of the case body 2. The remaining cam member 20 is not necessary in this embodiment, but is added as a spare when the number of contacts is increased.

FIG. 7 is an exploded perspective view showing the combination of the cam member 20, the step wheel 21 and the ratchet wheel 22 in detail. As shown in the figure, the step wheel 21 and the ratchet wheel 22 are integrally formed, but each cam member 20 is an independent member. Each of the cam members 20 used in this embodiment has the same shape, and has two positions on the circumferential surface (cam surface).
That is, it has a shape having recesses 20a at two positions separated by 180 °. As shown in FIG. 3, when the follower protrusion 17a formed on the movable spring 17 is brought into sliding contact with this cam surface and the follower protrusion 17a of the recess 20a is engaged by the rotation of the cam member 20, the movable spring 17 is The elastic contact moves downward to bring the movable contact 18 into contact with the fixed contact 12 (see FIG. 4).

The ratchet wheel 22 has six claws 22a in this embodiment.
Are provided at equal intervals, and the operating rod 23 described later
It rotates in units of pitch (60 ° in this embodiment). That is, in the present embodiment, three movable springs 17 are used to form a switch structure for three-stage switching, but this three-stage switching is performed by half rotation of the ratchet wheel 22, and therefore, three switches are provided on the half circumference.
A total of six claws 22a are formed.

The step wheel 21 is formed in a hexagonal shape. That is, in this embodiment, since switching is performed by rotating every 60 ° as described above, a restraining spring (suppressing member) described later is provided.
Since the flat portion is arranged at an angle of 60 ° on the pressure contact surface with 24, the step wheel 21 has a hexagonal shape. In addition, the step wheel 21 and the ratchet wheel 2
Each of the two integrated members and each cam member 20 has a polygonal fitting projection 25 on one end surface on the central axis and a polygonal fitting groove (not shown) corresponding to this fitting projection on the other end surface. Have Then, an integral member of the adjacent cam member 20, step wheel 21, and ratchet wheel 22 is coaxially connected by fitting the fitting projection 25 and the fitting groove to form one combined body. There is.

In this connection, the posture angle about the axis between the cam members 20 is arbitrarily set according to the desired contact switching order. For example, among the three movable springs 17 shown in FIG. 5, the recess 20a of the cam member 20 corresponding to the movable spring 17 to be operated first is used as a reference, and the cam member 20 corresponding to the movable spring 17 to be operated next is used. Recess 20
The position a is rotated by 60 °, and the concave portion 20a of the cam member 20 corresponding to the movable spring 17 to be finally operated is further rotated by 60 °.

As shown in FIGS. 3 and 4, a restraining spring (restraining member) 24 is provided at the center inner bottom portion of the case main body 2, and the restraining spring 24 is elastically pressed from both directions of the step wheel 21. Then, the stepped wheel 21 is held, and free rotation of the stepped wheel 21 and thus the combined body including the cam member 20 is suppressed. That is, the step rotation wheel 21 and the restraining spring 24 constitute a cam rotation restraining means.

Further, as shown in FIG. 3, an operation button (pushing operation body) 6 is provided in the central portion of the upper wall of the lid body 3 which constitutes the body 4.
An opening 3b for exposing the is formed. The operation button 6 exposes the operation portion 6a formed on the upper portion from the body 4, and the sliding portion 6b formed on the lower end engages with the slide guide portion 3c formed on the inner surface of the lid body 3. 3 is movable in the vertical direction of FIG. Further, a support wall 3d is formed in the center of the inside of the lid body 3.
A compression spring 26 is provided between d and the lower end of the operation button 6,
The compression spring 26 constantly urges the operation button 6 in a direction in which it is exposed (upward in FIG. 3).

The operating rod support wall 6c is provided inside the operation button 6.
Is formed, and the base portion 23a of the operating rod 23 is fixed to approximately the center of the operating rod support wall 6c (see FIG. 3).
Specifically, the operating rod 23 is made of an elastic material, and the base portion 23a and the rod portion 23b are orthogonal to each other and formed in an L shape, and the rod portion 23b extends in the direction of the ratchet wheel 22. In the posture, the base portion 23a is fixed to the operating rod support wall 6c.
The operating rod 23 moves integrally with the operation button 6, and when the operation button 6 is pushed inward of the body 4, the tip of the rod portion 23b engages with the pawl 22a of the ratchet wheel 22, and Car 2
The structure is such that 2 is rotated by one pitch (see FIG. 4). That is, the actuating rod 23 and the ratchet wheel 22 form a cam drive means for rotating the cam member 20.

Next, the operation of the pressing operation switch having the above structure will be described. An external electric wire is connected to each of the connection terminals 13, 13, 13, 19 as shown in FIG. 8, for example. In the electric circuit 100 of FIG. 8, when the pressing operation switch 1 is switched, the movable contact 18 comes in contact with and separates from the fixed contact 12, and the resistance inside the circuit changes.

Since the operation button 6 is constantly biased by the compression spring 26 in the direction of being exposed (upward direction in FIG. 3), the operating rod 23 fixed to the button 6 is also located at a position separated from the ratchet wheel 22. (See Figure 3). At this time, since the step wheel 21 is elastically held by the restraining spring 24, the combined body including the cam member 20 is restrained from freely rotating and maintains the present state.

Now, when the operation button 6 is pressed, the operating rod 23 moves in the direction of the bottom surface of the body 4 together with the operation button 6, and the state shown in FIG. 4 is obtained. That is, the operating rod 2
The tip of the rod portion 23b in 3 engages with the claw 22a of the ratchet wheel 22 and rotates the ratchet wheel 22 by one pitch. At this time,
The rod portion 23b of the operating rod 23 is elastically bent in the lateral direction to maintain the engagement state with the claw 22a. Further, the step wheel 21 also rotates the same angle as the ratchet wheel 22 against the biasing force of the restraining spring 24.

With the rotation of the ratchet wheel 22, each cam member 2
0 also rotates the same angle. As a result, the cam member 20 in which the follower protrusion 17a of the movable spring 17 has been engaged with the concave portion 20a until now releases the engaged state and pushes up the movable spring 17. On the other hand, one of the cam members 20 that has pushed up the movable spring 17 up to now has a movable spring 17 in the recess 20a.
The follower protrusion 17a of is engaged. As a result, the movable spring 1
The elastic force 7 restores the movable contact 18 as shown in FIG. 4, and brings the movable contact 18 into contact with the fixed contact 12.

When the pressing force of the operation button 6 is released, the operating rod 23 moves upward together with the operation button 6 by the urging force of the compression spring 26, and returns to the state shown in FIG. The operation of pressing the operation button 6 is simple, and there is no need to adjust the pressing force, and it is only necessary to press it in. Therefore, even an elderly person or a physically handicapped person can easily and surely perform the operation. Further, the operation button 6 of this embodiment is as shown in FIG.
As is clear from the above, since the operating portion 6a is formed sufficiently larger than the body 4, the operability is further improved.

9 to 13 are views for explaining the second embodiment of the present invention. Next, the pressing operation switch according to the second embodiment will be explained with reference to these drawings. The same parts as those of the pressing operation switch of the first embodiment described above are designated by the same reference numerals, and detailed description thereof will be omitted.
In this embodiment, the movable contact 1 is attached to the operation button (pushing operation body) 6.
It is characterized in that a display means for confirming the connection state between the fixed contact 8 and the fixed contact 12 is provided. That is, the display window 6d is formed in the operation portion 6a of the operation button 6. A transparent plate 27 is fitted in the display window 6d to prevent dust and dirt from entering.

A display body 28 as shown in FIG. 13 is rotatably provided inside the operation button 6. The display body 28 is formed in a hexagonal shape corresponding to the step wheel 21 described above, and a display 28a showing the connection state of the movable contact and the fixed contact is drawn on each plane portion. For this display 28a, for example, the connection state between the movable contact 18 and the fixed contact 12 may be replaced with the operating state of the wired electric circuit, and characters such as "strong", "medium", and "weak" may be used. These displays 28a are display bodies 2
The rotation of 8 causes the display window 6d to be sequentially placed at a position facing the display window 6d. Needless to say, the display 28a placed at a position facing the display window 6d is adjusted so as to show the connection state of the movable contact 18 and the fixed contact 12 at that time.

At both ends of the display body 28, the display switching claw wheel 2 is provided.
9 is integrally provided. This display switching ratchet wheel 29 has six claws 29a at equal intervals corresponding to the ratchet wheel 22 described above. In addition, on the inner surface of the operation button 6, as shown in FIG.
As shown in 0, a display switching prevention spring (display switching prevention member) 30 is fixed. This display switching prevention spring 30
Elastically presses the display switching ratchet 29,
As a result, the free rotation of the display body 28 is suppressed. That is, the display switching prevention spring 30 forms a display switching restricting means.

On the other hand, a base portion 31a of a display switching actuating rod 31 is fixed to the support wall 3d of the lid 3 (see FIG. 10). Specifically, the display switching actuating rod 31 is made of an elastic material, and the base portion 31a and the rod portion 31b are orthogonal to each other and are formed in an L shape, and the rod portion 31b is formed into a display switching pawl wheel 29. The base portion 31a is extended to the support wall 3d.
It is fixed to. When the operation button 6 is pushed inward of the body 4, the display switching operating rod 31 engages the tip 29a of the rod portion 31b with the pawl 29a of the display switching pawl 29 that has moved together with the operation button 6. The structure is such that the same ratchet wheel 29 is rotated by one pitch (see FIG. 11). That is, a display body driving means for rotating the display body 28 is formed by the display switching actuating rod 31 and the display switching claw wheel 29.

Next, the operation of the display means portion of the pressing operation switch 1 of this embodiment will be described. The operation button 6 is always exposed by the compression spring 26 (upward in FIG. 10).
Since it is urged to move, the display switching claw wheel 29 provided inside the button 6 is separated from the display switching operating rod 31 (see FIG. 10). At this time, since the display switching inhibition spring 30 is elastically pressed against the display switching ratchet 29, the display switching ratchet 29 and the display body 28 integrated with the ratchet 29 are provided.
Is restrained from freely rotating, and keeps the current state.

When the operation button 6 is pressed, the display switching ratchet wheel 29 and the ratchet wheel 29 are displayed together with the operation button 6.
The display body 28 integrated with is moved in the direction of the bottom surface of the body 4, and the state shown in FIG. 11 is obtained. That is, the claw 29 a of the display switching claw wheel 29 engages with the tip of the rod portion 31 b of the display switching actuating rod 31, and rotates by one pitch against the biasing force of the display switching inhibiting spring 30. At this time, the rod portion 31b of the display switching actuating rod 31 elastically bends laterally in order to maintain the engagement state with the claw 29a.

With the rotation of the display switching claw wheel 29, the display body 28 also rotates by the same angle. As a result, the display facing the display window 6d changes. By thus displaying the connection state of the movable contact 18 and the fixed contact 12 on the display window 6d, the operation desired by the operator can be accurately performed.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the operation button (pushing operation body) 6 has a structure that moves linearly in the axial direction, but the edge of the operation button is rotatably fixed to the edge of the lid 3. Alternatively, a so-called piano handle type switch structure that rotates around the edge may be used. Further, in the above embodiment, three cam members 20 are used, and the structure is such that the switches are switched by rotating every 60 °.
The number of these cam members 20 and the rotation angle of the switching operation can be arbitrarily set according to the number of built-in contacts and the like. In this case, the step wheel 21 has a square shape, a pentagonal shape,
It is needless to say that the polygonal shape such as an octagon should be formed in accordance with the rotation angle, and the number of claws of the ratchet wheel 22 and the display switching claw wheel 29 should be set in accordance with the turning angle.

[0041]

As described above, according to the pressing operation switch of the present invention, the cam member is rotated via the cam driving means by simply pressing the pressing operation body, and the conductive member interlocking with the cam member is operated. Since the movable contact support member operates to move the movable contact to and from the fixed contact, the elderly or the physically handicapped can easily and surely operate. Also, if a display window is formed on the push operation body and the connection state of the movable contact and the fixed contact is displayed on this display window, the operator can perform the desired operation accurately, and the elderly Or it becomes easier for people with physical disabilities to use. Furthermore, if a step wheel and a ratchet wheel are integrally formed, and any number of cam members are connected to each other by arbitrarily setting the posture angles around the shafts, they can be connected according to the electric circuit to be connected. It is possible to easily realize multistage switching.

[Brief description of drawings]

FIG. 1 is a plan view of a pressing operation switch according to a first embodiment of the present invention.

FIG. 2 is a front view showing the decorative plate portion of the switch by cutting.

FIG. 3 is a sectional front view of the switch.

FIG. 4 is a sectional front view showing a state where an operation button of the switch is pushed in.

FIG. 5 is a plan view showing the inside of the case body of the switch.

FIG. 6 is a sectional side view of the switch.

FIG. 7 is an exploded perspective view showing a cam member of the switch, a combination of a step wheel and a ratchet wheel, and the like.

FIG. 8 is a circuit diagram showing an example of wiring to the electric circuit of the switch.

FIG. 9 is a plan view showing a pressing operation switch according to a second embodiment of the present invention.

FIG. 10 is a sectional front view of the switch.

FIG. 11 is a sectional front view of a state in which an operation button of the switch is pushed in.

FIG. 12 is a sectional side view of the switch.

FIG. 13 is an exploded perspective view showing a display body and the like of the switch.

[Explanation of symbols]

2: Case body 3: Lid 4: Body 5: Decorative plate 6: Operation button 6d: Display window 11: Fixing bracket 12: Fixed contact 13: Fixed side connection terminal 16: Fixing metal fitting 17: Movable spring 18: Movable contact 19: Movable side connection terminal 20: Cam member 21: Step car 22: Claw wheel 23: Actuating rod 24: Restraint spring 26: Compression spring 28: Display 29: Display switching claw wheel 30: Display switching suppression spring 31: Display switching operation rod

Front page continued (58) Fields surveyed (Int.Cl. ⁷ , DB name) H01H 13/00-13/76 G09F 11/00-11/34

Claims (3)

(57) [Claims] 1. A plurality of pairs of fixed contacts and movable contacts provided inside the body, a plurality of conductive movable contact support members for supporting the movable contacts so that they can be freely contacted and separated from the fixed contacts, and these conductive members. One or a plurality of movable side connection terminals for connecting the movable contact support member to an external electric wire; one or a plurality of fixed side connection terminals for connecting each of the fixed contacts to an external electric wire; and each of the conductive movable contacts by a rotating operation. A plurality of cam members that move the support members independently to bring the movable contacts supported by the conductive movable contact support members into and out of contact with the fixed contacts, and a cam rotation restraint that restrains the free rotation of each of these cam members. Means, a cam drive means for rotating each cam member by a predetermined angle, and a push operation body provided to be exposed from the body and moving by an external pressing operation to operate the cam drive means. Each of the cam members has the same shape and is provided on one shaft, and the cam rotation inhibiting means is a polygonal step wheel integrally provided on the shaft of the cam members, The cam drive means includes a detent member that elastically presses against the step wheel, wherein the cam drive means is integrally provided on a shaft that connects the cam members, and the push operation body attached to the push operation body. An operating rod which engages with the ratchet wheel in conjunction with the ratchet wheel and rotates the ratchet wheel by a predetermined angle. Further, the step wheel and the ratchet wheel are integrally formed, and the step wheel and the ratchet wheel are integrally formed. And each cam member
Has a polygonal engaging protrusion on one end surface on the central axis.
Both have a polygonal fitting corresponding to this fitting projection on the other end surface.
Has a groove, the fitting projection and have fitting between the fitting groove and detachably connected on <br/> coaxially, the switching order of the contacts to the desired attitude angle around the axis of the cam member A pressing operation switch characterized in that it can be arbitrarily set according to the . 2. The pressing operation switch according to claim 1, further comprising a display window formed on the pressing operation body, and a plurality of display portions on a peripheral surface for indicating a connection state of the movable contact and the fixed contact, A display body which is rotatably provided inside the push operation body and selectively disposes the display portion in the display window in accordance with a rotation operation, and a display switching regulation for suppressing free rotation of the display body. And a display body driving means for rotating the display body by a predetermined angle in response to the operation of the cam member. 3. The pressing operation switch according to claim 2, wherein the display body driving means is mounted on the pressing operation body and a display switching pawl wheel that rotates integrally with the display body. A display switching operation lever that engages with the display switching ratchet wheel and rotates the display switching ratchet wheel by a predetermined angle, and the display switching restricting means includes the display switching ratchet wheel. A pressing operation switch characterized by including a display switching inhibiting member that elastically presses against.