WO2021006101A1 - Switch device - Google Patents

Abstract

Provided is a switch device in which the movement of an operation handle and an inversion handle can be independently adjusted. A switch device (1) comprises an operation handle (3), an inversion handle (6), and a conversion spring (8). The operation handle (3) moves around a first rotational axis in a seesawing manner by means of an operation by an operator. The inversion handle (6) controls the opening and closing of a prescribed switching contact by moving around a second rotational axis different from the first rotational axis in accordance with the movement of the operation handle (3). The conversion spring (8) is disposed between the operation handle (3) and the inversion handle (6), and transmits the movement of the operation handle (3) to the inversion handle (6).

Description

Switch device

The present disclosure relates to a switch device, and more particularly to a switch device provided with a seesaw-type operation handle.

The switch (switch device) described in Patent Document 1 is coupled to the body in which the contact device is housed, the reversing handle that is swingably supported by the body to open and close the contact device, and the front surface of the reversing handle. It is equipped with an operation handle. In this switch, since the operation handle is connected to the reversing handle, it swings integrally with the reversing handle.

In the switch described in Patent Document 1, since the operation handle is coupled to the reversing handle, the operation (for example, rotation angle and rotation speed) of the operation handle and the reversing handle cannot be adjusted independently.

Japanese Unexamined Patent Publication No. 2003-151402

The present disclosure has been made in view of the above problems, and an object of the present disclosure is to provide a switch device capable of independently adjusting the operation of each of the operation handle and the reversing handle.

The switch device according to one aspect of the present disclosure includes an operation handle, a reversing handle, and a conversion spring. The operation handle operates the seesaw around the first rotation axis by the operation of the operator. The reversing handle controls the opening and closing of a predetermined opening / closing contact by operating around a second rotating shaft different from the first rotating shaft according to the operation of the operating handle. The conversion spring is arranged between the operation handle and the reversing handle, and transmits the operation of the operation handle to the reversing handle.

It is a perspective view which looked at the switch device which concerns on embodiment from the front side. It is a perspective view of the same switch device as seen from the rear side. It is a cross-sectional view of A1-A1 line of FIG. It is a cross-sectional view of A2-A2 line of FIG. It is an exploded perspective view which shows the switch device as above. It is an exploded perspective view which shows a part of the switch device of the same as above. It is a perspective view which shows the cover of the switch device of the same above. It is a perspective view of the operation handle of the switch device of the same as seen from the rear side. It is a perspective view which shows the reversing handle of the above-mentioned switch device. It is a perspective view which shows the conversion spring of the above-mentioned switch device. It is a perspective view which shows the light guide member of the said switch device. It is a perspective view which shows the prism of the above-mentioned switch device. It is a side view which shows the way of propagation of light in the prism of the same above. It is a side view which shows the way of another light propagation in the prism of the same above.

(Embodiment 1)
The switch device 1 of the present embodiment will be described with reference to FIGS. 1 to 14. In the following description, unless otherwise specified, the vertical, horizontal, and front-back directions of the switch device 1 will be defined and described using the up-down, left-right, and front-back arrows shown in FIG. These arrows are for the purpose of assisting explanation only and are not accompanied by substance. Further, the above-mentioned provision of the direction does not mean to limit the usage mode of the switch device 1 of the present embodiment.

The switch device 1 of the present embodiment is a seesaw type (also referred to as a tumbler type or rocker type) operation switch device for switching the operating state of the load to be operated. The switch device 1 can be applied as, for example, a switch device attached to an indoor wall surface for switching lighting and extinguishing of a lighting fixture (load) installed indoors.

As shown in FIGS. 1 and 2, the switch device 1 has a body 2 in which a circuit component including an opening / closing contact is housed. A seesaw-type operation handle 3 is provided on the front surface 22J of the body 2. A pair of translucent windows 31L and 31R on both sides are provided on the operation portions 3L and 3R (more specifically, for example, both end portions 31e and 31f) on both sides of the operation handle 3. The rear surface 21b of the body 2 is provided with a plurality of (for example, four) wiring holes 22k into which wiring from the outside is inserted. By inserting the wiring from the outside into the wiring hole 22k, the wiring is electrically connected to the circuit component in the body 2.

This switch device 1 performs a seesaw operation in which when any one of the operation units 3L and 3R on both sides of the operation handle 3 is pressed, the other is lifted. By alternately pressing the operation units 3L and 3R on both sides of the operation handle 3, the opening / closing contacts in the body 2 are alternately opened / closed. At that time, in this switch device 1, of the pair of translucent windows 31L and 31R, only the translucent windows provided on the raised side of the operating portions 3L and 3R on both sides of the operation handle 3 emit light.

More specifically, the switch device 1 has a position display function and a pilot function. In the position display function, regardless of the operating state (operation and stop) of the load to be operated, of the pair of translucent windows 31L and 31R, the lifted one of the operation units 3L and 3R on both sides of the operation handle 3 Only the provided translucent window emits light. In the pilot function, of the pair of translucent windows 31L and 31R, the translucent windows provided on the raised side of the operating portions 3L and 3R on both sides of the operation handle 3 according to the operating state of the load to be operated. Only emits light. For example, in the pilot function, when the load is stopped, the pair of translucent windows 31L and 31R do not emit light, and when the load is operating, the operation handle 3 of the pair of translucent windows 31L and 31R Only the raised translucent window of the operation units 3L and 3R on both sides emits light.

In the present embodiment, each of the pair of translucent windows 31L and 31R can selectively emit light of two different light colors (for example, red light and white light). For example, the pilot function emits red light, and the position display function emits white light.

(Detailed explanation)
As shown in FIGS. 5 to 13, in addition to the above-mentioned body 2 and operation handle 3, the switch device 1 includes a contact device 4, a light source unit 5, a reversing handle 6, a reversing spring 7, a conversion spring 8, and a light guide. It includes a member 9, a pair of light- shielding portions 10L and 10R (see FIG. 8), and a prism 11.

The body 2 is an outer shell that houses the components of the switch device 1 (operation handle 3, contact device 4, light source unit 5, reversing handle 6, reversing spring 7, conversion spring 8, light guide member 9, and prism 11). is there. The body 2 is a rectangular parallelepiped box-shaped synthetic resin body 21 having an open front surface, and a synthetic resin cover 22 formed in a rectangular frame shape having an opening 22c and bonded to the front surface side of the body 21. And have.

The body 21 has a plurality of (for example, four) assembly protrusions 21a (see FIG. 6). The plurality of assembly protrusions 21a are provided apart from each other in the longitudinal direction of the body 21 on both outer surfaces of the body 21 in the lateral direction (vertical direction). An assembled tongue piece 22a extends rearward from the rear edge of the cover 22 (see FIG. 7). The body 21 and the cover 22 are connected to each other by fitting the assembly holes 22b and the assembly protrusions 21a provided in the assembly tongue piece 22a to each other (see FIG. 1).

As shown in FIG. 7, the opening 22c of the cover 22 has a first opening 22d and a second opening 22e. The first opening 22d is an opening in which the reversing handle 6 is arranged, and is, for example, rectangular. The first opening 22d is provided at a position deviated from the center of the cover 22 in the longitudinal direction to one side (for example, the right side) of the cover 22 in the longitudinal direction. The second opening 22e is an opening in which the prism 11 is arranged, and is a rectangular opening smaller than the first opening 22d. The second opening 22e is provided on the left side of the first opening 22d (that is, the side opposite to the side in the direction in which the first opening 22d is displaced). The first opening 22d and the second opening 22e are connected to each other to form one opening 22c.

The cover 22 has a pair of bearing protrusions 22f, a pair of bearing recesses 22h, and a pair of fitting recesses 22i.

The pair of bearing projecting pieces 22f are both side edges in the lateral direction (vertical direction) and project forward from the center in the longitudinal direction (horizontal direction) on the front surface 22J of the cover 22. A bearing hole 22g into which a pair of shaft protrusions 32, which will be described later, of the operation handle 3 are inserted is formed on each facing surface of the pair of bearing projection pieces 22f. That is, the pair of bearing holes 22g are arranged at the center of the cover 22 in the longitudinal direction and penetrate in the vertical direction. Each of the pair of bearing holes 22g is a substantially pentagonal hole having a triangular shape at the front and a rectangular shape at the rear.

The pair of bearing recesses 22h is a portion into which the pair of shaft protrusions 61d described later of the reversing handle 6 are inserted. The pair of bearing recesses 22h are provided in a concave shape on the inner side surfaces of the first opening 22d of the cover 22 on both sides in the lateral direction at the center of the inner side surfaces in the longitudinal direction. Each of the pair of bearing recesses 22h is, for example, a substantially triangular recess when viewed from the vertical direction.

The pair of fitting recesses 22i is a portion where the pair of fitting protrusions 16 described later of the prism 11 are fitted. The pair of fitting recesses 22i are provided in a concave shape on both inner side surfaces of the second opening 22e in the lateral direction. Each of the pair of fitting recesses 22i is, for example, a rectangular recess when viewed from the vertical direction.

The contact device 4 and the light source unit 5 are housed in the body 21 (see FIG. 6).

The contact device 4 includes an open / close contact for switching the operating state (operation and stop) of the load to be operated, and an external connection terminal for connecting to wiring from the outside. As shown in FIG. 6, the contact device 4 includes terminal plates 41 to 43, a support plate 44, an opening / closing element 45, and a lock spring 46.

Each of the terminal plates 41 to 43 is a part that is electrically connected to the external wiring. The terminal plates 41 and 42 are housed at one end (for example, the left end) of the body 21 in the longitudinal direction (left-right direction). The terminal plate 43 is housed in the other end (for example, the right end) of the body 21 in the longitudinal direction. The terminal plates 41 and 42 are provided with fixed contacts 41a and 42b. The switch 45 is arranged between the fixed contacts 41a and 42b. One lock spring 46 is housed in each of the terminal plates 41 and 42, and two lock springs 46 are housed in the terminal board 43.

The support plate 44 is arranged in the center of the bottom surface of the body 21 and is electrically connected to the terminal plate 43. The switch 45 is housed in the center of the body 21 in the longitudinal direction. The lower end of the switch 45 is in contact with the support plate 44. The switch 45 can swing on the support plate 44 with its lower end as a fulcrum.

The switch 45 is, for example, plate-shaped. The front end portion of the switch 45 is provided with a groove 45c into which the peripheral edge of the tubular portion 62 described later of the reversing handle 6 is fitted. The switch 45 has movable contacts 45a and 45b (see FIG. 3) on the main surfaces on both sides, respectively. The movable contact 45a and the fixed contact 41a form one opening / closing contact, and the movable contact 45b and the fixed contact 42b form one opening / closing contact. When the switch 45 swings, the closed state and the open state of the two opening / closing contacts are switched alternately. These two open / close contacts constitute the above open / close contact.

Note that such a switch device in which two open / close contacts are alternately switched by a common switch 45 is called a three-way switch. This three-way switch is provided on the upper floor and the lower floor of the stairs, respectively, and can be used as a switch device for switching on and off of a common lighting fixture that illuminates the stairs. In the present embodiment, the switch device 1 is a three-way switch, but is not limited to the three-way switch.

On the rear wall of the body 21, an electric wire insertion hole 22k (see FIG. 2) is provided at a portion corresponding to each of the four lock springs 46. By inserting the electric wire into the body 21 through the electric wire insertion hole 22k, the tip of the electric wire is sandwiched between the lock spring 46 and the terminal plates 41, 42, 43. As a result, the tip of the electric wire is electrically connected to the terminal plates 41 to 43. These terminal plates 41 to 43 form the above-mentioned external connection terminal.

As shown in FIG. 6, the light source unit 5 includes a circuit board 52, two light sources 51a (first light source), and a light source 51b (second light source).

The two light sources 51a and 51b are light sources that emit light emitted from the pair of translucent windows 31L and 31R. The two light sources 51a and 51b emit light having different light colors (for example, red light and white light). The light source 51a is a light source for a position display function, and emits white light, for example. The light source 51b is a light source for a pilot function, and emits, for example, red light. The two light sources 51a and 51b are, for example, LEDs (Light Emitting Diodes). The two light sources 51a and 51b are provided on the front surface of the circuit board 52 in a state of being arranged side by side in the longitudinal direction (left-right direction) of the body 21.

The light source 51a is always lit regardless of whether the contact device 4 is energized or de-energized between the open / close contacts in the closed state (that is, regardless of whether the load to be operated is activated or stopped). The light source 51b is switched on and off according to the energization and de-energization between the open / close contacts in the closed state in the contact device 4 (that is, according to the operation and stop of the load to be operated). Specifically, the light source 51b is turned off when the open / close contacts in the closed state are energized (that is, when the load is operating), and when the open / close contacts in the closed state are not energized (that is, when the load is operating). Lights up when the load is stopped).

The light source unit 5 is housed above the terminal plates 41 and 42 at one end (for example, the left end) in the longitudinal direction (left-right direction) of the body 21. That is, the two light sources 51a and 51b are housed on one end (left end) side in the longitudinal direction in the body 21 and are arranged in the longitudinal direction of the body 21.

As shown in FIG. 9, the reversing handle 6 is a handle that opens and closes the open / close contact of the contact device 4 according to the operating state of the operation handle 3. The reversing handle 6 has a reversing handle main body 61 and a tubular portion 62.

The reversing handle main body 61 has a bottom portion 61a, two side wall portions 61b, a plurality of (for example, four) fitting protrusions 61c, and a pair of shaft protrusions 61d. The bottom portion 61a has a rectangular plate shape. Each of the two side wall portions 61b has a rectangular plate shape. The two side wall portions 61b project forward from both the upper and lower edges of the bottom portion 61a. The four fitting protrusions 61c are protrusions for fixing the conversion spring 8. Each of the four fitting protrusions 61c is, for example, cylindrical. Two fitting protrusions 61c are provided on each of the two side wall portions 61b. The two fitting protrusions 61c provided on each side wall portion 61b are arranged side by side in the longitudinal direction (left-right direction) of the front surface of the side wall portion 61b. The pair of shaft protrusions 61d are portions that are swingably supported by the pair of bearing recesses 22h of the cover 22. Each of the pair of shaft protrusions 61d is, for example, a triangular column with an apex angle at the front end. The pair of shaft protrusions 61d are provided so as to project from the outer surfaces of the pair of side wall portions 61b.

The tubular portion 62 is a portion that accommodates the reversing spring 7. The tubular portion 62 is provided so as to project rearward from the rear surface of the reversing handle main body 61 (that is, the rear surface of the bottom portion 61a). The rear peripheral edge of the tubular portion 62 is hooked on the groove 45c (see FIG. 6) at the front end portion of the switch 45. In this state, a reversing spring 7 made of a coil spring is held between the cylinder portion 62 and the switch 45.

The reversing handle 6 is arranged in the first opening 22d of the cover 22 (see FIG. 4). In this state, the pair of shaft protrusions 61d of the reversing handle 6 are inserted into the pair of bearing recesses 22h of the cover 22. As a result, the reversing handle 6 can swing with respect to the cover 22 with the front end of the pair of shaft protrusions 61d as a fulcrum. That is, the reversing handle 6 can swing (that is, seesaw operation) about the rotation axis (second rotation axis) L2 passing through the front ends of the pair of shaft protrusions 61d. Due to the swing of the reversing handle 6, the direction of the spring force acting on the switch 45 from the reversing spring 7 is reversed, and one of the movable contacts 45a and 45b is the fixed contact 41a, corresponding to the movable contact 45a and 45b. Contact 42b. That is, the terminal plate 43 that is electrically connected to the switch 45 is selectively connected to either of the two terminal plates 41 and 42.

The operation handle 3 is a part that accepts the operation of the operator. The operation handle 3 has a shallow box shape with an open rear surface. As shown in FIG. 8, the operation handle 3 has an operation handle main body 31, a pair of shaft protrusions 32, four contact portions 33, and a fixing protrusion 34. The operation handle main body 31 has a main wall portion 31a and a peripheral wall portion 31b. The main wall portion 31a has a rectangular plate shape. The main wall portion 31a is bent in a substantially V shape along the center line L3 (see FIG. 5). As a result, both side portions of the center line L3 on the main wall portion 31a are inclined so as to project forward. The center line L3 extends in the lateral direction (vertical direction) of the main wall portion 31a at the center of the main wall portion 31a in the longitudinal direction (horizontal direction). The peripheral wall portion 31b rises behind the main wall portion 31a from the entire outer peripheral edge of the main wall portion 31a. The peripheral wall portion 31b is configured such that the upper wall portion 31c, the lower wall portion 31d, the left wall portion 31e, and the right wall portion 31f are integrally connected in an annular shape. The upper wall portion 31c and the lower wall portion 31d are bent in a substantially V shape according to the substantially V shape of the main wall portion 31a.

The operation handle main body 31 has a pair of translucent windows 31L and 31R. The pair of translucent windows 31L and 31R are portions that emit light from the light sources 51a and 51b. The pair of translucent windows 31L and 31R emit light by emitting light from the light sources 51a and 51b. The pair of translucent windows 31L and 31R are provided on the operation portions 3L and 3R on both sides of the operation handle main body 31 so as to penetrate the inside and outside of the operation handle main body 31. The operation units 3L and 3R on both sides of the operation handle main body 31 are the left and right side portions of the operation handle main body 31 divided into two by the center line L3. More specifically, the pair of translucent windows 31L and 31R are provided on the left and right end portions (that is, the left wall portion 31e and the right wall portion 31f) of the operation handle main body 31. The operation units 3L and 3R on both sides of the operation handle main body 31 constitute operation units 3L and 3R on both sides of the operation handle 3.

The pair of shaft protrusions 32 are portions supported by the pair of bearing holes 22g of the cover 22. The pair of shaft protrusions 32 are provided so as to project from the inner side surfaces on both the upper and lower sides of the operation handle main body 31 (that is, the inner side surfaces of the upper wall portion 31c and the lower wall portion 31d). The pair of shaft protrusions 32 are provided at the center of the trailing edges of the inner side surfaces on both the upper and lower sides of the operation handle main body 31. Each of the pair of shaft protrusions 32 has a substantially triangular shape with the front end as the apex.

When the pair of shaft protrusions 32 are inserted into the pair of bearing holes 22g of the cover 22, the operation handle 3 can swing with respect to the cover 22 (that is, seesaw operation is possible) with the front end of the shaft protrusions 32 as a fulcrum. .. That is, the operation handle 3 can swing (that is, seesaw operation) about the rotation shaft L1 (first rotation shaft) passing through the front ends of the pair of shaft protrusions 32. The rotation axes L1 and L2 extend in the vertical direction and are parallel to each other but do not coincide with each other. In a state where the operation handle 3 is swingably supported by the cover 22, the operation handle 3 is arranged in the center of the front surface of the cover 22 so as to cover the entire opening 22c of the cover 22 (see FIG. 1). In this state, the operation handle 3 is arranged on the front side of the reversing handle 6.

The four contact portions 33 are the portions that the conversion spring 8 contacts. The four contact portions 33 are provided so as to project rearward from the back surface of the operation handle main body 31 (that is, the back surface of the main wall portion 31a). The back surface of the operation handle main body 31 is a surface facing the reversing handle 6. The four contact portions 33 extend along the longitudinal direction (left-right direction) of the operation handle main body 31. The tip portion of each contact portion 33 in the protruding direction (hereinafter, also simply referred to as “tip portion of the contact portion 33”) comes into contact with the conversion spring 8. The four contact portions 33 are provided, for example, in the vicinity of the four corner portions on the back surface of the operation handle main body 31. In the four contact portions 33, the upper left and right two contact portions 33a and 33b form a pair of contact portions, and the lower two left and right two contact portions 33a and 33b form a pair of contact portions.

Of the four contact portions 33, the left contact portion 33a (first contact portion) and the right contact portion 33b (second contact portion) have different undulating shapes. The contact portion 33a on the left side and the contact portion 33b on the right side are provided on both the left and right sides of the rotation shaft L1 of the operation handle 3. The undulating shape is the shape of the tip end portion (that is, the end portion on the conversion spring 8 side) of the contact portion 33 when the contact portion 33 is viewed from the side surface. In the present embodiment, the tip of the contact portion 33a on the left side is inclined (undulated) substantially linearly along the longitudinal direction of the contact portion 33a, and the left side is farther from the back surface of the operation handle main body 31. .. The tip of the contact portion 33b on the right side is inclined (undulated) in a curved shape (for example, a substantially parabolic shape) along the longitudinal direction of the contact portion 33b, and the right side is closer to the back surface of the operation handle body 31. There is.

The fixing protrusion 34 is a portion where the light guide member 9 is fixed. The fixing protrusion 34 is provided so as to project from the center of the back surface of the operation handle main body 31.

The pair of light-shielding portions 10L and 10R (translucency control mechanism) is a portion that shields the light emitted from the prism 11 to the pair of light-transmitting windows 31L and 31R according to the operating state of the operation handle 3. The pair of light-shielding portions 10L and 10R correspond to the pair of light-transmitting windows 31L and 31R, and block the light emitted from the prism 11 to the corresponding light-transmitting windows 31L and 31R. The pair of light-shielding portions 10L and 10R are provided so as to project from the back surface of the operation handle main body 31. The pair of light-shielding portions 10L and 10R are arranged on both sides of the center of the operation handle main body 31 in the longitudinal direction (left-right direction) on the back surface. The pair of light-shielding portions 10L and 10R extend along the lateral direction (vertical direction) on the back surface of the operation handle main body 31.

The conversion spring 8 is a component that transmits the operation of the operation handle 3 to the reversing handle 6. The conversion spring 8 is arranged between the operation handle 3 and the reversing handle 6, and is fixed to, for example, the reversing handle 6 and elastically contacts the operating handle 3 (see FIG. 3).

As shown in FIG. 10, the conversion spring 8 has a pair of spring bodies 81 and a pair of connecting pieces 82. Each of the pair of spring bodies 81 extends in the left-right direction, and is arranged side by side in the vertical direction. The left ends of the pair of spring bodies 81 are connected by one connecting piece 82, and the right ends of the pair of spring bodies 81 are connected by the other connecting piece 82. The pair of spring bodies 81 are formed symmetrically with each other (that is, vertically symmetrically). The pair of spring bodies 81 have a one-to-one correspondence with the two side wall portions 61b of the reversing handle 6, and have a one-to-one correspondence with the two upper and lower contact portions 33 of the operation handle 3.

The pair of spring bodies 81 each have a substrate portion 81a, a fixing piece 81b, a positioning piece 81c, and a pair of elastic pieces 81d and 81e (first elastic piece and second elastic piece). That is, the conversion spring 8 has a pair of substrate portions 81a, a pair of fixing pieces 81b, a pair of positioning pieces 81c, and two pairs of elastic pieces 81d and 81e.

The substrate portion 81a has a flat plate shape extending in the left-right direction. The fixed piece 81b protrudes outward in the width direction from one end (for example, one end facing the other spring body 81) in the width direction (vertical direction) of the substrate portion 81a. The fixed piece 81b has a through hole 81f penetrating in the thickness direction (front-back direction). One of the pair of fitting projections 61c of the corresponding side wall portion 61b of the reversing handle 6 fits into the through hole 81f. The positioning piece 81c is a portion of the reversing handle 6 that contacts the side surface (for example, the outer surface) of the corresponding side wall portion 61b. The positioning piece 81c projects rearward from one end of the substrate portion 81a in the lateral width direction (for example, one end facing the other spring body 81). In the present embodiment, the positioning piece 81c protrudes rearward from both the left and right sides of the fixing piece 81b, and the two protruding portions extend in the left-right direction and are connected to each other.

The pair of elastic pieces 81d and 81e are portions of the operation handle 3 that come into contact with the corresponding pair of contact portions 33a and 33b. The pair of elastic pieces 81d and 81e extend in the longitudinal direction (left-right direction) from both ends in the longitudinal direction (left-right direction) of the substrate portion 81a, and are bent in an inverted V shape so as to project forward. The left ends of the elastic pieces 81d on the left side of the pair of spring bodies 81 are connected by one connecting piece 82, and the right ends of the elastic pieces 81e on the right side of the pair of spring bodies 81 are connected by the other connecting piece 82. There is. The pair of connecting pieces 82 have a strip shape extending vertically.

In a state where the conversion spring 8 is fixed to the reversing handle 6 (see FIG. 3), the pair of positioning pieces 81c come into contact with the outer surfaces of the two side wall portions 61b of the reversing handle 6. Further, the through hole 81f of the pair of fixing pieces 81b fits into the fitting protrusion of one (for example, the left side) of each pair of fitting protrusions 61c of the two side wall portions 61b. By the above contact and fitting, the relative position of the conversion spring 8 in the vertical and horizontal directions with respect to the reversing handle 6 is fixed. Further, the pair of elastic pieces 81d and 81e are located on the left and right sides of the rotation axis L2 of the reversing handle 6.

In the present embodiment, the reversing handle 6 is arranged slightly biased to the right side with respect to the operation handle 3. Therefore, the conversion spring 8 fits into the left fitting protrusion 61c of the two left and right fitting protrusions 61c in order to cancel the bias. As a result, the conversion spring 8 is fixed slightly to the left with respect to the reversing handle 6.

Further, in a state where the conversion spring 8 is fixed to the reversing handle 6, the four elastic pieces 81d and 81e elastically contact the four contact portions 33a and 33b of the operation handle 3 (see FIG. 3). More specifically, the pair of left and right elastic pieces 81d and 81e of the upper spring body 81 elastically contact the pair of left and right contact portions 33a and 33b on the upper side of the operation handle 3. Then, the pair of left and right elastic pieces 81d and 81e of the lower spring body 81 elastically contact the pair of left and right contact portions 33a and 33b on the lower side of the operation handle 3.

The light guide member 9 is a member that guides the light emitted from the prism 11 to the pair of translucent windows 31L and 31R to the pair of translucent windows 31L and 31R. The light guide member 9 is fixed to the back surface of the operation handle 3 (see FIG. 4). As shown in FIG. 11, the light guide member 9 has a pair of prisms 91L and 91R (translucency control mechanism, a pair of second prisms), a pair of connecting portions 92, and a fixed piece 93. The light guide member 9 is integrally formed of a translucent resin member (for example, a polycarbonate resin or an acrylic resin).

The pair of prisms 91L and 91R are portions that guide the light emitted from the prism 11 to the pair of translucent windows 31L and 31R to the pair of translucent windows 31L and 31R, respectively. The pair of prisms 91L and 91R correspond one-to-one with the pair of translucent windows 31L and 31R. The pair of prisms 91L and 91R each have a fitting portion 91a and a prism body 91b. The fitting portion 91a is a portion that fits into the corresponding translucent windows 31L and 31R, and has a flat plate shape (for example, a rectangular shape) having substantially the same shape and the same size as the facing transmissive windows 31L and 31R. The prism body 91b has a substantially trapezoidal flat plate shape in a plan view from the front-rear direction. The prism body 91b has a narrow end surface 91c having a relatively narrow width in the vertical direction and a wide end surface 91d having a relatively wide width in the vertical direction. The prism body 91b gradually widens from the narrow end surface 91c toward the wide end surface 91d. The wide end surface 91d of the prism body 91b is connected to the inner main surface of the fitting portion 91a. In the prisms 91L and 91R, the narrow end surface 91c of the prism body 91b is the incident surface 95, and the outer main surface of the fitting portion 91a is the exit surface 96. The entrance surface 95 is a surface for taking in external light into the prisms 91L and 91R, and the exit surface 96 is a surface for emitting light propagating in the prisms 91L and 91R to the outside. Hereinafter, the entrance surface 95 and the exit surface 96 of the prism 91L on the left side may be described as the entrance surface 95L and the exit surface 96L, respectively. The entrance surface 95 and the exit surface 96 of the prism 91R on the right side may be described as the entrance surface 95R and the exit surface 96R, respectively.

Both ends of the fitting portion 91a in the longitudinal direction (vertical direction) project from both sides in the lateral width direction (vertical direction) of the prism body 91b. The upper ends of the fitting portions 91a of the prisms 91L and 91R are connected to each other via one connecting portion 92, and the lower ends of the fitting portions 91a of the prisms 91L and 91R connect to the other connecting portion 92. They are connected to each other via. In this state, the incident surfaces 95L and 95R of the pair of prisms 91L and 91R face inward in the opposite direction (left-right direction) of the pair of prisms 91L and 91R. The exit surfaces 96L and 96R of the pair of prisms 91L and 91R face outward in the opposite direction of the pair of prisms 91L and 91R. In each of the prisms 91L and 91R, the incident surface 95 is located behind the exit surface 96. That is, each of the prisms 91L and 91R is inclined with respect to the longitudinal direction of the connecting portion 92 so that the incident surface 95 projects rearward from the connecting portion 92.

The fixed piece 93 has a substantially rod shape and is provided so as to straddle the central portion of each of the pair of connecting portions 92. The fixing piece 93 has a fitting hole 93a. The fitting hole 93a is a hole into which the fixing protrusion 34 of the operation handle 3 fits.

The light guide member 9 is fixed to the back surface of the operation handle 3 so as to be housed inside the operation handle 3. In this fixed state, as shown in FIG. 4, the pair of fitting portions 91a fit into the pair of translucent windows 31L and 31R. Further, the fixing piece 93 comes into contact with the back surface of the operation handle 3, and the fixing protrusion 34 of the operation handle 3 fits into the fitting hole 93a of the fixing piece 93. As a result, the light guide member 9 is fixed to the back surface of the operation handle 3. Further, in this fixed state, the incident surfaces 95L and 95R of the pair of prisms 91L and 91R face each other in the longitudinal direction (left-right direction) of the operation handle 3 at the center of the back surface of the operation handle 3. Is placed. The incident surfaces 95L and 95R of the pair of prisms 91L and 91R are arranged adjacent to (rear side) the tips of the pair of light-shielding portions 10L and 10R. The light guide member 9 operates integrally with the operation handle 3 by being fixed to the operation handle 3.

The prism 11 (first prism) is a member that branches the light from the light sources 51a and 51b into two, and emits the branched light toward the pair of translucent windows 31L and 31R, respectively. As shown in FIG. 12, the prism 11 has a prism main body 12 and two branch paths 13 and 14. Further, the prism 11 has two incident surfaces 11a (first incident surface) and an incident surface 11b (second incident surface), and two exit surfaces 11L and 11R.

The prism body 12 incidents the light from the light sources 51a and 51b and guides the incident light to the two branch paths 13 and 14. The prism main body 12 has a first light guide unit 121 and a second light guide unit 122. The two incident surfaces 11a and 11b are formed on one end surface of the first light guide portion 121. The incident surface 11b is arranged on the right side of the incident surface 11a (next to the side on which the second light guide portion 122 extends). The first light guide unit 121 extends in an oblique direction (for example, diagonally forward to the right) with respect to the optical axes L4 and L5 of the incident surfaces 11a and 11b. The optical axes L4 and L5 of the incident surfaces 11a and 11b are in the same direction as each other, and extend in the front-rear direction, for example. The second light guide unit 122 extends from one end portion (for example, the right end portion) of the first light guide unit 121 in a direction orthogonal to (left-right direction) the optical axes L4 and L5 of the incident surfaces 11a and 11b. The two branch paths 13 and 14 are located on the incident surfaces 11a and 11b (rear) from one end of the second light guide 122 (that is, the end opposite to the first light guide 121 side, for example, the right end). It protrudes to the opposite side (front side) from the side). In the present embodiment, the optical axes L4 and L5 of the incident surfaces 11a and 11b coincide with the optical axes of the light sources ( light sources 51a and 51b in the present embodiment) that incident light on the incident surfaces 11a and 11b. Hereinafter, the optical axes L4 and L5 are also referred to as the optical axes of the light sources 51a and 51b.

The first light guide unit 121 has a left side surface 121a (first reflection surface) and a right side surface 121b (second reflection surface). The left side surface 121a and the right side surface 121b are side surfaces adjacent to both sides of the one end surface provided with the incident surfaces 11a and 11b. The left side surface 121a is inclined 45 degrees to the right with respect to the optical axes L4 and L5 of the incident surfaces 11a and 11b, and overlaps the one end surface in the direction of the optical axes L4 and L5. The right side surface 121b is a surface parallel to the left side surface 121a and does not overlap the one end surface in the directions of the optical axes L4 and L5.

The second light guide unit 122 has a right side surface 122a (third reflection surface). The right side surface 122a is a side surface of the second light guide unit 122 that is opposite to the side connected to the first light guide unit 121. The right side surface 122a is a surface parallel to the left side surface 121a of the first light guide unit 121, and is inclined 45 degrees to the right with respect to the optical axes L4 and L5 of the incident surfaces 11a and 11b. The right side surface 122a overlaps with the left side surface 121a of the first light guide unit 121 in the left-right direction (direction in which the second light guide unit 122 extends) orthogonal to the optical axes L4 and L5. The right side surface 122a is arranged so as to face the base ends (connecting surfaces with the second light guide portion 122) of the two branch paths 13 and 14 in the directions of the optical axes L4 and L5.

The two branch paths 13 and 14 are integrally formed with the prism body 12, and the light propagating in the prism body 12 is branched into two, and the branched light is emitted to the outside from the exit surfaces 11L and 11R. The two branch paths 13 and 14 project from one end (right end) of the second light guide unit 122 to the side (front side) opposite to the side (rear side) of the incident surfaces 11a and 11b. The two branch paths 13 and 14 are arranged side by side in the direction in which the second light guide portion 122 extends (left-right direction), and are inclined outward in the opposite direction (left-right direction). The two branch paths 13 and 14 have a one-to-one correspondence with the pair of translucent windows 31L and 31R.

The two exit surfaces 11L and 11R are formed by one end surfaces of each of the two branch paths 13 and 14. Each of the exit surfaces 11L and 11R is, for example, a flat surface. The normals of the two exit surfaces 11L and 11R are oriented in substantially opposite directions. The normals of the two exit surfaces 11L, 11R generally point in the direction of the corresponding translucent windows 31L, 31R. The two branch paths 13 and 14 have opposite side surfaces 13a and 14a. The facing side surfaces 13a and 14a are side surfaces facing each other in the two branch paths 13 and 14. The facing side surfaces 13a and 14a of the branch paths 13 and 14 face the exit surfaces 11L and 11R provided on the branch paths and are inclined with respect to the optical axes L4 and L5 of the incident surfaces 11a and 11b. The inclination is such that the light emitted from the exit surfaces 11L and 11R is emitted in the direction of the corresponding translucent windows 31L and 31R.

The incident surface 11a is incident with light from the first light source 51a. The incident surface 11b is incident with light from the second light source 51b. The two incident surfaces 11a and 11b are aligned in the direction (left-right direction) in which the second light guide unit 122 extends. The two incident surfaces 11a and 11b are, for example, semi-convex lens-shaped, but may be planar lens-shaped. The two incident surfaces 11a and 11b are arranged so as to be offset from each other in the optical axes L4 and L5 directions, but they do not have to be displaced from each other.

The prism body 12 has a slit 15. The slit 15 constitutes a reflecting surface that reflects light propagating in the prism body 12. The slit 15 is a thin flat plate-shaped through hole, and penetrates the prism body 12 in the thickness direction (vertical direction). The slit 15 is provided at a connecting portion between the first light guide portion 121 and the second light guide portion 122. In other words, the slit 15 is arranged between the two side surfaces 121a and 121b in the optical axes L4 and L5 directions, and is arranged between the two side surfaces 121a and 122a in the left-right direction orthogonal to the optical axes L4 and L5. Has been done. The slit 15 is parallel to the side surfaces 121a, 121b, 122a and is inclined 45 degrees to the right with respect to the optical axes L4 and L5 of the incident surfaces 11a, 11b.

The prism 11 further has a pair of fitting protrusions 16. The pair of fitting protrusions 16 are provided so as to project from the main surfaces on both sides of the prism 11 (more specifically, for example, the second light guide portion 122) in the vertical direction. The pair of fitting protrusions 16 fit into the pair of fitting recesses 22i of the cover 22. By this. The prism 11 is fixed to the body 2 (more specifically, the second opening 22e of the cover 22).

In this fixed state, as shown in FIG. 4, the two branch paths 13 and 14 of the prism 11 project from the substantially center of the cover 22 to the front side of the cover 22. The right side portion of the second light guide portion 122 of the prism 11 is arranged between the two side wall portions 61b of the reversing handle 6. Further, the prism body 12 of the prism 11 extends obliquely to the left and rear of the cover 22 from substantially the center of the cover 22. More specifically, the second light guide portion 122 of the prism 11 is arranged along the front surface of the cover 22, and the first light guide portion 121 of the prism 11 extends obliquely to the left and rearward of the cover 22. The two incident surfaces 11a and 11b of the prism 11 are arranged in front of the two light sources 51a and 51b of the light source unit 5, respectively.

The method of propagating light in the prism 11 will be described with reference to FIG.

In this prism 11, the light C1 emitted forward from the first light source 51a passes through the incident surface 11a, is reflected by the left side surface 121a, and propagates to the right. Then, the light C1 is reflected by the right side surface 121b and propagates in the forward direction. At this time, the light C1a on the left side of the light C1 propagating in the front direction propagates in the front direction without being reflected by the slit 15, and is reflected by the left side surface 121a. Then, the light C1a propagates in the forward direction while repeating reflection between the left side surface 121a and the slit 15, and when it propagates to the front side of the slit 15, it propagates in the right direction due to the reflection on the left side surface 121a and propagates to the right side. It is incident on the region R1 near the center position P1 of the surface 122a. Then, the light C1a is reflected forward on the right side surface 122a and propagates in the right branch path 14. Then, the light C1a propagates while reflecting in the branch path 14 on the right side, and is emitted from the exit surface 11R toward the light-transmitting window 31R on the right side.

On the other hand, the light C1b on the right side of the light C1 is reflected by the slit 15 and propagates to the right, and is incident on the region R2 near the center of the right side surface 122a. That is, the light C1b is incident on the region R2 different from the region R1. Then, the light C1b is reflected forward on the right side surface 122a and propagates in the left branch path 13. Then, the light C1b propagates while reflecting in the branch path 13 on the left side, and is emitted from the exit surface 11L toward the light-transmitting window 31L on the left side. The central position P1 of the right side surface 122a is a position where the boundary point P2 of the two branch paths 13 and 14 intersects the line L6 drawn parallel to the optical axes L3 and L4.

In this way, the light C1 from the first light source 51a propagates in the prism 11 and is branched into two substantially evenly in the prism 11 and emitted from the two exit surfaces 11L and 11R.

Further, as shown in FIG. 14, in this prism 11, the light C2a on the left side of the light C2 emitted forward from the second light source 51b passes through the incident surface 11b and is reflected by the left side surface 121a. Propagate to the right. Then, the light C2a enters the rear region R3 of the right side surface 122a, is reflected forward by the right side surface 122a, and propagates in the left branch path 13. The light C2a is incident on a region R3 different from the regions R1 and R2. Then, the light C2a propagates while reflecting in the branch path 13 on the left side, and is emitted from the exit surface 11L toward the light-transmitting window 31L on the left side.

On the other hand, the light C2b on the right side of the above light C2 from the second light source 51b propagates in the forward direction and is reflected by the left side surface 121a. The light C2b propagates forward while repeating reflection between the left side surface 121a and the slit 15, and when it propagates to the front side of the slit 15, it propagates to the right by the reflection on the left side surface 121a and propagates to the right side 122a. It is incident on the front region R4 of. That is, the light C2b is incident on the region R4 different from the regions R1 to R3. Then, the light C2b is reflected forward on the right side surface 122a and propagates in the right branch path 14. Then, the light C2b propagates while reflecting in the branch path 14 on the right side, and is emitted from the exit surface 11R toward the light-transmitting window 31R on the right side.

In this way, the light C2 from the second light source 51b propagates in the prism 11 and is branched into two substantially evenly in the prism 11 and emitted from the two exit surfaces 11L and 11R.

When the lights C1 and C2 from the light sources 51a and 51b are simultaneously incident on the prism 11, the propagation of the light C1 in FIG. 13 and the propagation of the light C2 in FIG. 14 are superposed. Then, the lights C1 and C2 from the two light sources 51a and 51b are branched into two substantially evenly, respectively, and are emitted from the two exit surfaces 11L and 11R. That is, the light C1 and C2 from the two light sources 51a and 51b arranged so as to be offset from each other in the left-right direction by one prism 11 are branched into two substantially evenly, respectively, and are emitted from the two exit surfaces 11L and 11R. it can. In this case, the light C1a, C1b, C2a, and C2b enter the regions R1 to R4 that are different from each other and are reflected by the branch paths 13 and 14.

In this prism 11, of the inner surfaces of the prism body 12, the surfaces on which light is reflected (right side surfaces 121b, 122a, left side surface 121a, and slit 15) are relative to each other with respect to the optical axes L4 and L5 of the incident surfaces 11a and 11b. It is tilted 45 degrees to the same side (for example, the right side).

In this switch device 1, the light sources 51a and 51b are arranged on the body 21 so as to be offset to the left from the center in the left-right direction (longitudinal direction), but by using the prism 11, two light sources 51a and 51b are emitted. It can be branched substantially evenly and emitted from the two exit surfaces 11L and 11R.

Next, the operation of the switch device 1 (operation of the operation handle 3 and the reversing handle 6) will be described with reference to FIG.

When any one of the operation units 3L and 3R on both sides of the operation handle 3 (for example, the operation unit 3L on the left side) is pressed (operated), the operation handle 3 rotates about the rotation axis L1 (see FIG. 8). Then, the other (for example, the operation unit 3R on the right side) is lifted forward from the front surface 22J of the cover 22. In this state, the conversion spring 8 elastically supports the operation handle 3 so as to maintain this operation state of the operation handle 3.

At this time, the operating force when one of the operating handles 3 is pressed is transmitted to the reversing handle 6 via the conversion spring 8. At this time, the four elastic pieces 81e and 81d of the conversion spring 8 elastically contact the corresponding contact portion 33 of the operation handle 3. In this contact state, the four elastic pieces 81e and 81d slide on the corresponding contact portion 33 along the longitudinal direction of the contact portion 33 in response to the operation of the operation handle 3, and receive the above-mentioned operating force and reverse. It is transmitted to the handle 6. As a result, the above-mentioned operating force is smoothly transmitted from the operating handle 3 to the reversing handle 6. That is, the reversing handle 6 smoothly rotates about the rotation axis L2 (see FIG. 9) according to the operation of the operation handle 3. In this case, the right side portion of the left and right side portions of the reversing handle 6 (that is, the portion on the same side as the operating portion on the pressing side of the operating handle 3) is pressed by the conversion spring 8 and is centered on the rotation axis L2. Rotate to. By this rotation, the opening / closing contact of the contact device 4 is switched.

Further, in this switch device 1, the rotation axis L2 of the reversing handle 6 is displaced to the right with respect to the rotation axis L1 of the operation handle 3. Therefore, the timing at which the reversing handle 6 operates according to the operation of the operation handle 3 when the operation unit 3L on the left side of the operation handle 3 is pressed and when the operation unit 3R on the right side of the operation handle 3 is pressed. Can be different. Specifically, in this case (when the rotation axis L2 is displaced to the right with respect to the rotation axis L1), when the operation unit 3L on the left side of the operation handle 3 is pressed, the right side of the operation handle 3 is pressed. The above timing is later than when the operation unit 3R of is pressed.

On the other hand, in this switch device 1, of the four contact portions 33 of the operation handle 3, the contact portion 33a on the left side and the contact portion 33b on the right side have different undulating shapes. Specifically, the undulating shape of the contact portion 33b on the right side is curved to make it difficult to transmit the operating force, and the undulating shape of the contact portion 33a on the left side is linear to facilitate the transmission of the operating force. As a result, the reversing handle 6 operates at the same timing regardless of whether the operation units 3L or 3R on both sides of the operation handle 3 are pressed. As a result, the operation feeling becomes the same regardless of whether the operation units 3L or 3R on both sides of the operation handle 3 are pressed.

As described above, in this switch device 1, the operation handle 3 and the reversing handle 6 can operate around the separate rotation axes L1 and L2, and the operation of the operation handle 3 is transmitted to the reversing handle 6 by the conversion spring 8. Therefore, by adjusting the contact method between the conversion spring 8 and the handles 3 and 6, each operation (for example, rotation angle and rotation speed) of the handles 3 and 6 can be adjusted independently. Further, by reducing the rotation angle of the reversing handle 6 with respect to the rotation angle of the operation handle 3, the space of the reversing handle 6 in the body 2 can be reduced, and the degree of freedom in the arrangement layout of each component can be improved. ..

Next, with reference to FIG. 4, the operation of the pair of light-shielding portions 10L and 10R and the pair of prisms 91L and 91R of the switch device 1 will be described.

In this switch device 1, when any one of the operation units 3L and 3R on both sides of the operation handle 3 (for example, the left operation unit 3L) is pressed, the other (for example, the right operation unit 3R) covers 22. Lift forward from the front 22J. In response to the operation of the operation handle 3, the pair of light-shielding portions 10L, 10R and the pair of prisms 91L, 91R provided on the operation handle 3 are provided with respect to the prism 11 (more specifically, the two exit surfaces 11L, 11R). And relatively displace.

More specifically, among the pair of light-shielding portions 10L and 10R, the light-shielding portion 10R provided on the lifted side (the right operation portion 3R) of the operation portions 3L and 3R on both sides of the operation handle 3 is a prism 11. Is displaced to a position that does not block the front surface of the corresponding exit surface 11R (for example, a position shifted forward from the exit surface 11R). As a result, the light emitted from the corresponding exit surface 11R of the prism 11 is not blocked by the light-shielding portion 10R and is emitted toward the corresponding light-transmitting window 31R. On the other hand, the light-shielding portion 10L provided on the pressed side (for example, the operation portion 3L on the left side) of the operation units 3L and 3R on both sides of the operation handle 3 is a position that blocks the front surface of the corresponding exit surface 11L of the prism 11. Displace to (for example, the front position of the exit surface 11L). As a result, the light emitted from the corresponding exit surface 11L of the prism 11 is blocked by the light-shielding portion 10L and is not emitted toward the corresponding light-transmitting window 31L.

Further, of the pair of prisms 91L and 91R, the prism 91R provided on the lifted side (for example, the operation unit 3R on the right side) of the operation units 3L and 3R on both sides of the operation handle 3 is the corresponding exit of the prism 11. It is displaced to a front position of the surface 11R (that is, a position where the light emitted from the exit surface 11R can be incident from the incident surface 95R). As a result, the light emitted from the exit surface 11R of the prism 11 is incident on the incident surface 95R of the prism 91R and emitted from the exit surface 96R. That is, the light emitted from the exit surface 11R of the prism 11 is emitted from the translucent window 31R. On the other hand, the prism 91L provided on the pressed side (for example, the operation unit 3L on the left side) of the operation units 3L and 3R on both sides of the operation handle 3 is, for example, rearward from the front of the corresponding exit surface 11L of the prism 11. The position is displaced (that is, the position where the light emitted from the emitting surface 11L cannot be incident from the incident surface 95L). As a result, the light emitted from the exit surface 11L of the prism 11 does not enter the incident surface 95L of the prism 91L and is not emitted from the corresponding translucent window 31L.

As a result, of the pair of translucent windows 31L and 31R, the light source 51a, from the translucent window 31R of the lifted one (for example, the right operating unit 3R) of the operation units 3L and 3R on both sides of the operation handle 3. The light from the 51b is emitted, and the light from the light sources 51a and 51b is not emitted from the translucent window 31L on the pressed side (for example, the operation unit 3L on the left side).

Next, the lighting operation (position display function and pilot function) of the switch device 1 will be described with reference to FIG.

In this switch device 1, the light source 51a (for example, a white light source) is always lit. As a result, the light from the light source 51a (for example, white light) is always incident on the incident surface 11a of the prism 11 and emitted from the two exit surfaces 11L and 11R of the prism 11. As a result, the light from the light source 51a is emitted only from the lifted translucent window of the operating portions 3L and 3R on both sides of the operation handle 3 among the pair of translucent windows 31L and 31R. That is, when the operation handle 3 is operated and any one of the operation units 3L and 3R on both sides of the operation handle 3 is lifted, the lifted translucent windows 31L and 31R always emit light, for example, white light. .. As a result, the position of the operation handle 3 can be easily visually recognized even in the dark by the light emission (position display function).

On the other hand, in this switch device 1, the light source 51b (for example, a red light source) is switched on and off according to the operation and stop of the load to be operated. For example, the light source 51b is turned off when the load to be operated is operating, and turned on when the load to be operated is stopped.

As a result, when the load to be operated is operating, the light source 51b is turned off, so that even if the operation handle 3 is operated and one of the operation units 3L and 3R on both sides of the operation handle 3 is lifted, The light from the light source 51b is not emitted from the raised translucent windows 31L and 31R. That is, the raised translucent windows 31L and 31R do not emit light. On the other hand, when the load to be operated is stopped, the light source 51b is turned on. Therefore, when the operation handle 3 is operated and one of the operation units 3L and 3R on both sides of the operation handle 3 is lifted, the light source 51b is lifted. Light (for example, red light) from the light source 51b is emitted from the light-transmitting windows 31L and 31R. That is, the raised translucent windows 31L and 31R emit red light. As a result, the light emission makes it possible to easily visually recognize the portion of the operation handle 3 for operating the load of the operation target even in the dark (pilot function). In this embodiment, since the pilot function and the position display function are implemented together, in this case, the red light by the pilot function and the white light by the position display function are emitted from the translucent windows 31L and 31R. ..

As described above, according to the present embodiment, the operation handle 3 and the reversing handle 6 can be operated around the separate rotation axes L1 and L2, and the operation of the operation handle 3 is transmitted to the reversing handle 6 by the conversion spring 8. Thereby, by adjusting the contact method between the conversion spring 8 and the handles 3 and 6, each operation (for example, rotation angle and rotation speed) of each of the handles 3 and 6 can be adjusted independently.

Further, since the prism 11 for branching the light from the light sources 51a and 51b into two and guiding the light to the pair of translucent windows 31L and 31R is provided, one light source 51a and 51b can be used for the pair of translucent windows 31L and 31L. A light source for 31R can be secured. That is, since it is not necessary to provide the prism 11 and the light sources 51a and 51b for each of the translucent windows 31L and 31R, it is possible to suppress the increase in size of the switch device 1. Further, the light-transmitting control mechanism (light-shielding portions 10L, 10R and prisms 91L, 91R in this embodiment) of the pair of light-transmitting windows 31L, 31R according to the operating state (that is, the operating state) of the operation handle 3. The light guided by the prism 11 can be emitted from only one of the translucent windows. As a result, only one of the operation units 3L and 3R on both sides of the operation handle 3 can emit light according to the operation state of the operation handle 3 without causing the switch device 1 to become large in size.

(Modification example)
Next, a modified example of the above embodiment will be described. The following modifications may be implemented in combination.

(Modification example 1)
In the above embodiment, the light source 51b is turned off when the load to be operated is operating, and the light source 51b is turned on when the load to be operated is stopped. However, conversely, when the load of the operation target is operating, the light source 51b may be turned on, and when the load of the operation target is stopped, the light source 51b may be turned off. In this case, of the pair of translucent windows 31L and 31R, the raised translucent window of the operating portions 3L and 3R on both sides of the operation handle 3 emits light only when the load to be operated is operating. ..

(Modification 2)
In the above embodiment, the prism 11 may be fixed to the operation handle 3 instead of being fixed to the cover 22 (that is, the body 2). Further, the light guide member 9 (that is, the pair of prisms 91L and 91R) may be fixed to the cover 22 instead of being fixed to the operation handle 3. The pair of light-shielding portions 10L and 10R may be fixed to the cover 22 instead of being fixed to the operation handle 3. Further, the conversion spring 8 may be fixed to the operation handle 3 and elastically contact the reversing handle 6 instead of being fixed to the reversing handle 6 and elastically contacting the operating handle 3.

(Modification 3)
In the above embodiment, as an example of the light transmission control mechanism, a pair of light-shielding portions 10L, 10R and a light guide member 9 (a pair of prisms 91L, 91R) are exemplified. The light transmission control mechanism emits light guided by the prism 11 from only one of the pair of light transmission windows 31L and 31R, depending on the operating state of the operation handle 3. It is a mechanism to make it. In the above embodiment, one or both of the pair of light-shielding portions 10L and 10R and the light guide member 9 may be omitted.

(Modification example 4)
In the above embodiment, the light source 51b is switched on and off depending on the continuity and non-conduction between the open / close contacts in the closed state, but the operating state of the operation handle 3 (that is, of the operation units 3L and 3R on both sides). Depending on which is pressed), lighting and extinguishing may be switched.

(Modification 5)
In the present embodiment, the translucent windows 31L and 31R are provided on both side end faces 3L and 3R of the operation handle 3, but may be provided on both left and right side regions of the front surface of the operation handle 3 (front surface of the main wall portion 31a). ..

(Summary)
The switch device (1) of the first aspect includes an operation handle (3), a reversing handle (6), and a conversion spring (8). The operation handle (3) operates as a seesaw around the first rotation axis (L1) by the operation of the operator. The reversing handle (6) operates around a second rotating shaft (L2) different from the first rotating shaft (L1) according to the operation of the operating handle (3), thereby causing a predetermined opening / closing contact (movable contact). It controls the opening and closing of 45a and the fixed contact 41a, and the movable contact 45b and the fixed contact 42b). The conversion spring (8) is arranged between the operation handle (3) and the reversing handle (6), and transmits the operation of the operation handle (3) to the reversing handle (6).

According to this configuration, the operation handle (3) and the reversing handle (6) can be operated around separate rotation axes (L1, L2), and the operation of the operation handle (3) is reversed by the conversion spring (8). Communicate to (6). As a result, by adjusting the contact method between the conversion spring (8) and each handle (3, 6), each operation (for example, rotation angle and rotation speed) of each handle (3, 6) can be independently performed. Can be adjusted.

In the switch device (1) of the second aspect, in the first aspect, the conversion spring (8) is fixed to one of the operation handle (3) and the reversing handle (6) (for example, the reversing handle 6). And elastically contact the other handle (eg, operating handle 3).

According to this configuration, since the conversion spring (8) is fixed to one of the operation handle (3) and the reversing handle (6), the conversion spring (8) can be stably arranged between the handles (3, 6). ..

In the switch device (1) of the third aspect, in the second aspect, the other handle (for example, the operation handle 3) has a first contact portion (33a) and a second contact portion (33b). The first contact portion (33a) and the second contact portion (33b) are provided on both sides of the rotation axis (for example, rotation axis L1) of the other handle on the surface facing one handle (for example, the reversing handle 6). Elastically contacts the conversion spring (8). The first contact portion (33a) and the second contact portion (33b) project from the facing surface. The undulating shapes of the first contact portion (33a) and the second contact portion (33b) are different from each other.

According to this configuration, the first contact portion (33a) and the second contact portion (33b) of the other handle (for example, the operation handle 3) can be contacted with the conversion spring (8) differently. As a result, even if the first rotation axis (L1) and the second rotation axis (L2) are displaced from each other, even if either of the operation portions (3L, 3R) on both sides of the operation handle (3) is pressed, they are equal. The operation feel can be realized.

In the switch device (1) of the fourth aspect, in the second or third aspect, the conversion spring (8) includes the substrate portion (81a), the fixing piece (81b), the first elastic piece (81d), and the first elastic piece (81d). It has a second elastic piece (81e). The fixing piece (81b) is provided on the substrate portion (81a) and is fixed to one of the handles (for example, the reversing handle 6). The first elastic piece (81d) and the second elastic piece (81e) project from both sides of the substrate portion (81a) toward the other handle (for example, the operation handle 3), and in the other handle, the rotation axis of the other handle. Elastically contacts the positions on both sides.

According to this configuration, a conversion spring (for example, a reversing handle 6) that can be fixed to one handle (for example, an operation handle 3) and elastically contactable at positions on both sides of a rotation shaft (L1) on the other handle (for example, an operation handle 3) 8) can be realized.

In the switch device (1) of the fifth aspect, in any one of the first to fourth aspects, the first rotation axis (L1) of the operation handle (3) and the second rotation handle (6) of the reversing handle (6). The axes of rotation (L2) are parallel to each other and do not coincide with each other.

According to this configuration, the first rotation axis (L1) and the second rotation axis (L2) can be arranged so as to be offset from each other. As a result, the rotation axis (L1) of the operation handle (3) can be arranged at the center of the switch device (1) in the longitudinal direction while diverting the switch body used in the conventional switch device. The switch body of the conventional switch device includes a body, a contact device, and a reversing handle, and the rotation axis of the reversing handle is deviated from the center of the body in the longitudinal direction in the longitudinal direction of the body.

In the switch device (1) of the sixth aspect, in any one of the first to fourth aspects, the conversion spring (8) is the operation handle (3) when the operation handle (3) is operated. ) Is elastically supported so as to maintain the operating state.

According to this configuration, the operating state of the operation handle (3) can be maintained. As a result, it is possible to prevent the operation state of the operation handle (3) from being unexpectedly switched.

1 Switch device 3 Operation handle 3L, 3R Operation part on both sides 6 Inversion handle 8 Conversion spring 33a Contact part (1st contact part)
33b Contact part (second contact part)
41a, 42b Fixed contact 45a, 45b Movable contact 81b Fixed piece 81d Elastic piece (first elastic piece)
81e elastic piece (second elastic piece)
L1 rotation axis (first rotation axis)
L2 rotation axis (second rotation axis)

Claims (6)

1. An operation handle that operates the seesaw around the first rotation axis by the operation of the operator,
   A reversing handle that controls the opening and closing of a predetermined opening / closing contact by operating around a second rotating shaft different from the first rotating shaft according to the operation of the operating handle.
   A conversion spring, which is arranged between the operation handle and the reversing handle and transmits the operation of the operation handle to the reversing handle, is provided.
   Switch device.
2. The conversion spring is fixed to one of the operation handle and the reversing handle, and elastically contacts the other handle.
   The switch device according to claim 1.
3. The other handle
   It has a first contact portion and a second contact portion that are provided on both sides of the rotation shaft of the other handle on the surface facing the one handle and elastically contact the conversion spring.
   The first contact portion and the second contact portion project from the facing surface and
   The undulating shapes of the first contact portion and the second contact portion are different from each other.
   The switch device according to claim 2.
4. The conversion spring
   Board part and
   A fixing piece provided on the substrate portion and fixed to the one handle,
   It has a first elastic piece and a second elastic piece that project from both sides of the substrate portion toward the other handle and elastically contact positions on both sides of the rotation axis of the other handle. ,
   The switch device according to claim 2 or 3.
5. The first rotation axis of the operation handle and the second rotation axis of the reversing handle are parallel to each other and do not coincide with each other.
   The switch device according to any one of claims 1 to 4.
6. The conversion spring elastically supports the operating handle so as to maintain the operating state of the operating handle when the operating handle is operated.
   The switch device according to any one of claims 1 to 4.

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