JP6335023B2 - Switching switch - Google Patents

Description

  The present invention relates to a switching switch for switching between two systems of circuits.

  2. Description of the Related Art Conventionally, an operation handle that can be rotated in the front-rear direction is provided in a switching switch that switches a connection destination to one of two circuits (for example, Patent Document 1). The switching switch is also provided with a display unit that displays which of the two systems is connected. The display unit is often provided at a position adjacent to the operation window on the upper surface of the main body case so as to project the knob portion of the operation handle to the outside of the main body case.

JP 2003-123597 A

  However, the upper surface of the main body case is often limited in the space that can be secured as a display unit, and the display unit becomes small at the position that is often found in the prior art, and is connected to any of the two systems of circuits. There is a problem that it is difficult to determine whether it is.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a switching switch that can easily determine which of two circuits is connected.

In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention has an operation window on the upper surface of the main body case, and a knob portion of the operation handle that can be rotated in the front-rear direction. It protrudes upward from the main body case through the operation window, and by tilting the knob part to the front side, a first ON state is established in which it is connected to one of two circuits, and the knob part is placed on the rear side. By tilting to the second position, the second circuit is connected to the other circuit, and the knob is raised at an intermediate position in the front-rear direction to connect to both of the two circuits. A switching switch that is not turned off, has a first insertion hole through which the knob can be inserted, and displays that the front side of the first insertion hole is not connected to the one circuit. First Off display members each having a second off display portion for displaying that the display portion is not connected to the other circuit on the rear side of the first insertion hole, and a second portion through which the knob portion can be inserted. A first indication of having an insertion hole and having a length in the front-rear direction longer than that of the off-display member and being connected to the one circuit on the rear side of the second insertion hole. An on-display member provided with a second on-display portion for displaying that the on-display portion is connected to the other circuit on the front side of the second insertion hole; The off display member and the on display member are inserted into the main body by inserting the knob from the lower side of the on display member into the first insertion hole and the second insertion hole with the off display member stacked. Below the operation window in the case The operation handle is installed so as to be slidable in the front-rear direction around the rotation axis of the operation handle in response to the rotation operation of the operation handle. The display unit and the first on display unit are exposed in the operation window. In the second on state, the first off display unit and the second on display unit are exposed in the operation window, and further, the off state. In the state, the off display member covers the on display member, and only the first off display portion and the second off display portion are exposed in the operation window.
According to a second aspect of the present invention, in the first aspect of the present invention, the first insertion hole is a hole whose opening edge is in contact with the peripheral surface of the knob, while the second insertion hole is Is a loose insertion hole that allows movement of the knob portion in the front-rear direction, and further, a pressed portion that can contact the front end portion or the rear end portion of the off-display member with the front and rear end portions of the on-display member The on-display member slides in the front-rear direction when the pressed portion is pressed forward or backward by the on-display member that is directly interlocked with the rotation operation of the operation handle. .

According to the present invention, the on / off state of the circuit in the switching switch is displayed in the operation window, that is, which of the two systems is connected, or which circuit is connected. It can be displayed. Therefore, it is easy to secure a space for the display unit, and it is easy for an operator to determine the on / off state of the circuit in the switching switch.
According to the second aspect of the present invention, the length of the on-display member in the front-rear direction compared to a configuration in which the on-display member is directly linked to the turning operation of the operation handle in the same manner as the off-display member. Can be formed short, and the space related to the display portion in the main body case can be saved.

It is explanatory drawing which showed the switching switch, Comprising: (a) is a perspective view, (b) is a top view. It is perspective explanatory drawing which showed the 1st case member which comprises a main body case. It is side explanatory drawing which showed the internal structure of the switching switch in an OFF state. It is side explanatory drawing which showed the internal structure of the switching switch in an OFF state. It is perspective explanatory drawing which showed the internal structure of the switching switch in a 1st ON state. It is side surface explanatory drawing which showed the internal structure of the switching switch in a 1st ON state. It is perspective explanatory drawing which showed the internal structure of the switching switch in a 2nd ON state. It is side surface explanatory drawing which showed the internal structure of the switching switch in a 2nd ON state.

  Hereinafter, a switching switch according to an embodiment of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory view showing a switching switch 50, where (a) is a perspective view and (b) is a top view. FIG. 2 is a perspective explanatory view showing the first case member 10 a constituting the main body case 10. 3 and 4 are side explanatory views showing the internal structure of the switching switch 50 in the off state. FIG. 5 is an explanatory perspective view showing the internal structure of the switching switch 50 in the first on state, and FIG. 6 is an explanatory side view showing the internal structure of the switching switch 50 in the first on state. is there. FIG. 7 is an explanatory perspective view showing the internal structure of the switching switch 50 in the second on state, and FIG. 8 is an explanatory side view showing the internal structure of the switching switch 50 in the second on state. is there.

  The switching switch 50 switches between two systems of circuits (not shown) consisting of three wires. The switching switch 50 has three terminal fittings 1a to 1c to which electric wires can be connected at the front part of the main body case 10. The former terminal 1 and three terminal fittings 2a to 2c that can be connected to electric wires are provided, and a first system terminal 2 to which one of the two systems is connected is provided. On the other hand, the rear part of the main body case 10 has three terminal fittings 3a to 3c to which electric wires can be connected, and a second system terminal 3 to which the other circuit of the two systems is connected. The main body case 10 is divided into four parts on the left and right sides, and the left three members (first case member 10a, second case member 10b, and third case member 10c) when viewed from the front side of the main body case 10. Accommodates a switching mechanism for a three-wire circuit. On the other hand, the fourth case member 10 d at the right end when viewed from the front side of the main body case 10 is configured as a closing plate that closes the right side surface of the main body case 10. Further, an operation window 5 is opened on the upper surface of the main body case 10, and the knob 4 a of the operation handle 4 connected to the switching mechanism 9 in the main body case 10 is connected to the main body case 10 via the operation window 5. It protrudes to the outside (upper side). Reference numeral 6 (shown in FIG. 3 and the like) denotes a movable contact portion that is connected to the operation handle 4 via the switching mechanism 9 and the like, and moves in the front-rear direction in accordance with the turning operation of the operation handle 4. Reference numeral 7 (shown in FIG. 3 and the like) is a first fixed contact connected to the first system terminal 2, and 8 (shown in FIG. 3 and the like) is a second fixed contact connected to the second system terminal 3. It is a contact point.

  In the switching switch 50, when the knob 4a of the operation handle 4 is tilted forward, the movable contact portion 6 tilts forward and comes into contact with the first fixed contact 7, and the switching source terminal 1 and the first system A first ON state is established in which the terminal 2 is connected. Further, by tilting the knob 4a to the rear side, the movable contact portion 6 tilts to the rear side and comes into contact with the second fixed contact 8, and the switching source terminal 1 and the second system terminal 3 are connected. 2 is turned on. Further, by raising the knob 4a at an intermediate position in the front-rear direction, the movable contact 6 is separated from the fixed contacts 7, 8, and the switching source terminal 1 is the first system terminal 2 and the second system terminal 3. It will be in the OFF state which is not connected to any of.

Here, the configuration related to the display of the on / off state of the switching switch 50, which is a main part of the present invention, will be described in detail.
An on / off state display section of the switching switch 50 includes an off display member 21 that is fitted to the knob 4 a of the operation handle 4 and directly linked to the rotation operation of the operation handle 4, and the operation of rotating the operation handle 4. And an on-display member 31 that operates in accordance with the movement of the off-display member 21. The off-display member 21 has a top surface portion 22 formed in a strip shape in which the length in the front-rear direction and the left-right direction is substantially the same as the operation window 5 (strictly, both are slightly longer), and the left and right sides of the upper surface portion 22 It has side parts 23 and 23 extending downward from both side edges. The off-display member 21 has a circular arc shape in a side view in which the center portion of the upper surface portion 22 in the front-rear direction bulges upward from both front and rear end portions, in other words, an arc shape centered on the rotation axis of the operation handle 4 Is formed. In addition, an insertion hole 24 is formed in the central portion of the upper surface portion 22 in the front-rear direction so that the knob portion 4a formed in a tapered shape can be inserted up to a predetermined height position. Furthermore, on the front side of the insertion hole 24, a first off display unit 25 that displays that the switching source terminal 1 and the first system terminal 2 are in an off state is provided. In addition, on the rear side of the insertion hole 24, a second off display unit 26 that displays that the switching source terminal 1 and the second system terminal 3 are in the off state is provided.

  Similar to the off display member 21, the on display member 31 is bent in a circular arc shape in a side view in which a center portion in the front-rear direction of the upper surface portion 32 bulges upward from both front and rear end portions, and the upper display portion 32 is displayed off. The member 21 is relatively slidable. Further, the length of the upper surface portion 32 in the front-rear direction is longer than the upper surface portion 22 of the off-display member 21, and the length of the upper surface portion 32 in the left-right direction is substantially the same as between the side surface portions 23, 23 of the off-display member 21. In addition, operation protrusions 33 on which the front end surface or the rear end surface of the off-display member 21 can come into contact are provided at both front and rear end portions of the upper surface portion 32. Furthermore, a loose insertion hole 34 through which the knob portion 4a can be inserted in a state where there is play in the front-rear direction is provided in the center part of the on-display member 31 in the front-rear direction. Furthermore, a first on-display unit 35 that displays that the switching source terminal 1 and the first system terminal 2 are in the on state (in the first on state) is provided on the rear side of the loose insertion hole 34. ing. In addition, on the front side of the loose insertion hole 34, a second on display unit 36 is provided for displaying that the switching source terminal 1 and the second system terminal 3 are in the on state (in the second on state). Yes.

  The off display member 21 and the on display member 31 are inserted into the loose insertion hole 34 and the insertion hole 34 from below the on display member 31 in a state where the off display member 21 is placed on the on display member 31 and stacked. In a state where it is inserted through the hole 24, it is installed in a storage space S provided on the lower side of the operation window 5 in the upper part in the main body case 10. In this installed state, the opening edge of the insertion hole 24 is in contact with the peripheral surface of the knob 4 a, and the off display member 21 is directly linked to the turning operation of the operation handle 4 to It slides in the front-rear direction on the circumference around the rotation axis. Further, the upper surface portion 22 of the off display member 21 is in contact with the upper surface of the on display member 31, and the side surface portions 23 and 23 of the off display member 21 are in contact with the side surfaces of the on display member 31. 32 and the side surface function as a guide unit for guiding the slide of the off-display member 21. On the other hand, regarding the ON display member 31, even if the operation handle 4 is rotated, the knob 4 a moves in the loose insertion hole 34 and is not directly linked to the rotation operation of the operation handle 4. However, the front end surface or the rear end surface of the off display member 21 that slides together with the operation handle 4 abuts on the operation protrusion 33, and the operation display protrusion 33 is further moved by sliding the off display member 21 forward or rearward together with the operation handle 4. The off display member 21 is pressed, and the on display member 31 also slides forward or backward on the circumference around the rotation axis of the operation handle 4.

  The operation of the off-display member 21 and the on-display member 31 will be described in detail. When the off-display member 21 and the on-display member 31 are in the off state, the portion of the on-display member 31 that is located in the operation window 5 is covered with the off-display member 21 Only the display member 21 is exposed in the operation window 5. That is, in the operation window 5, the first off display unit 25 is exposed on the front side of the knob unit 4a and the second off display unit 26 is exposed on the rear side of the knob unit 4a. The off display portions 25 and 26 are visible. In the off state, when the first on state is changed to the off state, the on display member 31 is in the front position where the first on display portion 35 is located below the operation window 5 as shown in FIG. When the on-state is changed from the on-state to the off-state, the on-display member 31 is in a rear position where the second on-display unit 36 as shown in FIG.

  Here, when the operation handle 4 is turned forward from the off state shown in FIG. 3 to switch to the first on state, the off display member 21 slides forward, as shown in FIGS. The 1-off display unit 25 moves forward from the operation window 5 and is covered with the main body case 10, and only the second off-display unit 26 is exposed to the rear side of the knob 4a in the operation window 5. become. On the other hand, regarding the on display member 31, the knob 4 a only moves to the front side in the loose insertion hole 34 and does not move from the front side position. However, as the off display member 21 moves, it is positioned below the operation window 5. The first ON display portion 35 that is being exposed is exposed in the operation window 5.

  Further, when the operation handle 4 is turned forward from the off state shown in FIG. 4 to switch to the first on state, the off display member 21 operates in the same manner as described above. On the other hand, with respect to the ON display member 31, as the OFF display member 21 slides forward, the front operation protrusion 33 is pressed forward, and moves from the rear position to the front position. 6 and the state shown in FIG. 6 (that is, the state where the first on-display unit 35 is exposed in the operation window 5).

As described above, when the operation handle 4 is turned to the front side to be in the first on state, the second off display unit 26 and the first on display unit 35 are visible, and the switching source terminal 1 and the first system terminal 2 are visible. Are switched on and the switching source terminal 1 and the second system terminal 3 are switched off.
In addition, when the operation handle 4 is rotated to the rear side from the first on state and switched to the off state, the off display member 21 returns to the position where both off display portions 25 and 26 are exposed in the operation window 5. To do. Further, regarding the ON display member 31, the knob 4a only moves rearward in the loose insertion hole 34, does not move at the front position, and is in the state shown in FIG.

  On the other hand, when the operation handle 4 is rotated backward from the off state shown in FIG. 3 to the second on state, the off display member 21 slides backward as shown in FIGS. The off display unit 26 moves rearward from the operation window 5 and is covered with the main body case 10, and only the first off display unit 25 is exposed to the front side of the knob 4a in the operation window 5. . Further, regarding the ON display member 31, as the OFF display member 21 slides rearward, the rear operation protrusion 33 is pressed rearward, so that the ON display member 31 moves from the front position to the rear position. The 2-on display part 36 is exposed in the operation window 5.

  Further, when the operation handle 4 is rotated backward from the off state shown in FIG. 4 to switch to the second on state, the off display member 21 operates in the same manner as described above. On the other hand, regarding the on display member 31, the knob 4 a only moves to the rear side in the loose insertion hole 34 and does not move from the rear position, but as the off display member 21 moves, The second on-display unit 36 located at is exposed in the operation window 5.

As described above, when the operation handle 4 is rotated to the rear side to be in the second on state, the first off display unit 25 and the second on display unit 36 are visible, and the switching source terminal 1 and the first system terminal 2 is in the off state, and the switching source terminal 1 and the second system terminal 3 are in the on state.
When the operation handle 4 is turned to the front side from the second on state and switched to the off state, the off display member 21 returns to the position where both the off display portions 25 and 26 are exposed in the operation window 5. . Further, regarding the on-display member 31, the knob 4a only moves forward in the loose insertion hole 34, does not move in the rear position, and is in the state shown in FIG.

  According to the switching switch 50 configured as described above, the switching source terminal 1 and the first system terminal 2 are in an off state on the front side of the insertion hole 24 while having the insertion hole 24 through which the knob 4a can be inserted. A first off display unit 25 for displaying that the switching source terminal 1 and the second system terminal 3 are in an off state on the rear side of the insertion hole 24, respectively. The off-display member 21 provided and the loose insertion hole 34 through which the knob 4a can be inserted are formed, and the length in the front-rear direction is longer than that of the off-display member 21, and further on the rear side of the loose insertion hole 34 Is an on display provided with a first on display portion 35 for displaying the first on state and a second on display portion 36 for displaying the second on state on the front side of the loose insertion hole 34. Member 31 and the off display member 21 on the upper side of the on display member 31. In the state of being bent, by inserting the knob portion 4a into the insertion hole 24 and the loose insertion hole 34 from below the on-display member 31, the off-display member 21 and the on-display member 31 are connected to the operation window 5 in the main body case 10. In the lower part, the operation handle 4 is installed to be slidable in the front-rear direction on the circumference around the rotation axis of the operation handle 4 according to the rotation operation of the operation handle 4. In the first on state, the second off display unit 26 and the first on display unit 35 are exposed in the operation window 5, and in the second on state, the first off display unit 25 and the second on display unit 36 are exposed. It is exposed in the operation window 5, and in the OFF state, the off display member 21 covers the on display member 31 so that only the first off display unit 25 and the second off display unit 26 are exposed in the operation window 5. did. Therefore, the on / off state of the circuit in the switching switch 50 is displayed in the operation window 5, that is, which of the two systems is connected, or which circuit is not connected. Can be displayed. Therefore, it is easy to secure a space related to the display unit, and it is easy for an operator to determine the on / off state of the circuit in the switching switch 50.

  Further, the insertion hole 24 of the off display member 21 is a hole whose opening edge abuts on the peripheral surface of the knob portion 4a, while the loose insertion hole 34 of the on display member 31 has a play in the front-rear direction. And a hole allowing the movement of the knob 4a in the front-rear direction, and the front or rear end of the off-display member 21 is provided at both front and rear ends of the on-display member 31. An operation protrusion 33 that can be contacted is provided, and the ON display member 31 is pressed forward or backward by the OFF display member 21 that is directly interlocked with the rotation operation of the operation handle 4, thereby moving in the front-rear direction. It is configured to slide to. Accordingly, the on display member 31 can be formed to have a shorter length in the front-rear direction of the on display member 31 as compared to the configuration in which the on display member 31 is interlocked with the turning operation of the operation handle 4 like the off display member 21. Space saving related to the display unit in the main body case 10 can be achieved.

  It should be noted that the switching switch according to the present invention is not limited to the aspect of the above embodiment, and the configuration of the display unit and the like as well as the overall configuration of the switching switch depart from the spirit of the present invention. As long as it is not necessary, it can be changed as needed.

For example, in the above embodiment, only the off display member is configured to be directly linked to the turning operation of the operation handle. However, the opening edge of the second insertion hole provided in the on display member has a peripheral surface of the knob portion. The on-display member may be configured to directly interlock with the turning operation of the operation handle, similarly to the off-display member.
Moreover, in the said embodiment, although the to-be-pressed part is provided in the front-and-rear both ends of the ON display member, a design change is possible suitably also about the position and shape of a to-be-pressed part, and also the presence or absence.
Furthermore, in the said embodiment, although it is set as the switching switch which consists of 3 poles, when switching the circuit which consists of 2 lines, what is necessary is just to comprise by 2 poles, and also as for assembling two case members also about a main body case, etc. No problem.

  1 .... Switching source terminal 2 .... First system terminal 3 .... Second system terminal 4 .... Operation handle 4a .... Picking part 5 .... Operating window 6 .... Movable contact part 7.・ First fixed contact, 8 ..Second fixed contact, 9 ..Switching mechanism, 10 ..Main body case, 21 ..Off display member, 24 ..Insertion hole (first insertion hole), 25. OFF display section, 26... Second OFF display section, 31... ON display member, 33.. Operation ridge (pressed part), 34 .. Free insertion hole (second insertion hole), 35. On display part, 36 .. Second on display part.

Claims (2)

An operation window is established on the upper surface of the main body case, and a knob portion of the operation handle that can be rotated in the front-rear direction protrudes upward from the main body case through the operation window,
By tilting the knob to the front side, the first on state connected to one of the two systems of circuits is established. By tilting the knob to the rear, the other circuit of the two systems of circuits is connected. A switching switch that is in a connected second on state, and is in an off state that is not connected to both of the two systems by raising the knob at an intermediate position in the front-rear direction,
The first insertion hole has a first insertion hole through which the knob portion can be inserted, and a first off-display portion that indicates that the first insertion hole is not connected to the first insertion hole is provided on the front side of the first insertion hole. Off-display members each having a second off-display portion for indicating that the other circuit is not connected to the rear side;
The second insertion hole through which the knob portion can be inserted has a length in the front-rear direction that is longer than the off-display member, and is connected to the one circuit on the rear side of the second insertion hole. A first on-display part that displays that the second on-display part is connected to the other circuit on the front side of the second insertion hole; ,
By inserting the knob from the lower side of the ON display member into the first insertion hole and the second insertion hole in a state where the OFF display member is stacked on the upper side of the ON display member, the OFF display member and The on-display member is slidable in the front-rear direction around the rotation axis of the operation handle in response to the rotation operation of the operation handle below the operation window in the main body case. And
In the first on state, the second off display unit and the first on display unit are exposed in the operation window, and in the second on state, the first off display unit and the second on display unit are exposed. In the off state, the off display member covers the on display member, and only the first off display portion and the second off display portion are exposed in the operation window. Switching switch characterized by. While the first insertion hole is a hole whose opening edge comes into contact with the peripheral surface of the knob,
The second insertion hole is a loose insertion hole that allows movement in the front-rear direction of the knob,
Furthermore, provided on both front and rear end portions of the on-display member are pressed portions that can contact the front end portion or the rear end portion of the off-display member
2. The on-display member slides in the front-rear direction when the pressed portion is pressed forward or backward by the on-display member that is directly linked to the turning operation of the operation handle. Switching switch as described in.

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