JP5253346B2 - switch - Google Patents

Description

  The present invention relates to a switch that opens and closes an electric circuit by tilting an operation unit.

  As a switch that opens and closes the electric circuit by tilting the conventional operation unit, a rod-shaped lever is provided with a shaft, and the lever is tilted so that the upper part of the lever protrudes from the switch body. There has been a toggle switch (see Non-Patent Document 1 below) that operates to tilt a movable contact piece disposed in the switch body.

Nippon Switchgear Co., Ltd. “2009 General Catalog”

  However, the above-mentioned toggle switch has a risk of inadvertent contact and malfunction due to the protrusion of the lever. If the protruding part of the lever is shortened to prevent malfunction, the operation of the toggle switch is larger than that of a long lever. There is a problem that the operability is impaired because force is required.

  Therefore, in view of the above situation, the present invention has an object to provide a switch that prevents a malfunction by reducing the protruding portion of the operation unit without impairing operability and preventing inadvertent contact with the operation unit. And

In order to achieve the above object, the present invention provides
[1] In a switch that opens and closes an electric circuit by tilting an operation section that is tiltably disposed on a case, the operation section includes a button, a first tilting element that is pivotally disposed on the button, and a first tilting element. The tilting shaft is formed on the first tilting element and the second tilting element, and the tilting shaft is rotatably engaged with a hole formed in the case. The operation portion tilts as a fulcrum.
[2] The switch according to [1], wherein the contact mechanism is operated by the rotation of the tilting shaft accompanying the operation of the operation unit.
[3] In the switch according to [1], the first tilting element and the second tilting element have a substantially rectangular flat plate shape, and are connected to the button and the other short side surface in the vicinity of one short side surface. The tilt axes are formed in the vicinity, and the long sides of the first tilt piece and the long sides of the second tilt piece are different.
[4] The switch according to [1], wherein an elastic member is disposed between one of the first tilting element or the second tilting element and the case.
[5] The switch according to [1], wherein the operation unit and the contact mechanism are configured as independent units.

According to the present invention, the following effects can be achieved.
(1) The operation unit includes a first tilting element and a second tilting element which are rotatably disposed on the button and the button, and a tilting shaft is formed on the first tilting element and the second tilting element. The tilting shaft is pivotally engaged with a hole formed in the case, and the operating portion tilts with the tilting shaft as a fulcrum, so that the operating force is distributed to the first tilting element and the second tilting element. Therefore, even if the tilting element is shortened, it does not require a large operating force, so it is possible to perform light operations.By shortening the tilting element, the portion protruding from the case of the operation unit can be reduced, and inadvertent contact can be achieved. Therefore, malfunction can be prevented.
(2) The operation unit includes a first tilting element and a second tilting element that are rotatably arranged on the button and the button, and a tilting axis is formed on the first tilting element and the second tilting element. The tilting shaft is rotatably engaged with a hole formed in the case, and the tilting shaft serves as a fulcrum, so that the operation portion tilts. Therefore, a contact mechanism is provided for each of the first tilting element and the second tilting element. Since they can be combined, different contact mechanisms can be operated simultaneously with one operation unit.
(3) Since the operation unit and the contact mechanism are independent units, even if the basic insulation of the contact mechanism unit is broken, the operation unit unit can protect against electric shock, so that a double insulation structure can be realized.
(4) Since the operation unit and the contact mechanism are independent units, the number of poles can be easily changed only by changing the number of coupling of the contact mechanism units.
(5) Since the operation unit and the contact mechanism are independent units, various contact mechanisms can be accommodated by replacing the contact mechanism unit as long as the contact mechanism operates with the rotation of the tilting shaft.
(6) Since the length of the long side of the first tilting element and the length of the long side of the second tilting element are different, the angle of tilting with the operation of the button is different, so the amount of rotation of the tilting axis is different, and the tilting axis Different contact mechanisms can be operated for each of them, and various functions such as shifting the opening and closing timings of both electric circuits, or using one as a contact corresponding to a large current and the other as a contact corresponding to a minute current can be used. It can be operated with one operation unit.

It is a disassembled perspective view of the operation part of the switch which shows the Example of this invention. It is a perspective view of the operation part of the switch which shows the Example of this invention. It is a figure which shows operation | movement of the operation part of the switch which shows the Example of this invention. It is a disassembled perspective view of the contact mechanism of the switch which shows the Example of this invention. It is a perspective view of the contact mechanism of the switch which shows the Example of this invention. It is a perspective view of the switch which shows the Example of this invention. It is a figure which shows operation | movement of the contact mechanism of the switch which shows the Example of this invention.

  The present invention has a configuration in which the electric circuit can be opened and closed by tilting two tilters disposed rotatably in the operation unit. Therefore, malfunction can be prevented without impairing operability.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an exploded perspective view of an operation portion of a switch showing an embodiment of the present invention, FIG. 2 is a perspective view of an operation portion of the switch showing an embodiment of the present invention, and FIG. 3 is an operation of the switch showing an embodiment of the present invention. 3A is a diagram showing the operation of the unit, FIG. 3A is before the operation, FIG. 3B is during the operation, and FIG. 3C is after the operation. 4 is an exploded perspective view of a contact mechanism of a switch showing an embodiment of the present invention, FIG. 5 is a perspective view of a contact mechanism of the switch showing an embodiment of the present invention, and FIG. 6 is a perspective view of the switch showing an embodiment of the present invention. FIGS. 7 and 7 are views showing the operation of the contact mechanism of the switch according to the embodiment of the present invention. FIG. 7A is before operation, FIG. 7B is during operation, and FIG. 7C is after operation. It is.

  1 and 2, 1 is a button, 2 is a first tilting element, 3 is a second tilting element, 4 is a pin connecting the button 1 and the first tilting element 2, and 5 is a button 1 and a second tilting element. A pin for connecting the tilting element 3, 6 is an operation part case, 7 is a tension spring hooked between the first tilting element 2 and the operation part case 6, and 8 is an operation part case cover. The button 1 has bearing holes 1a and 1b formed on the side surfaces. The first tilting element 2 is formed in a substantially flat plate shape, and has a bearing hole 2a near one short side surface, a tilting shaft 2b that acts as a tilting fulcrum near the other short side surface and transmits an operation to the contact mechanism, A notch is provided on the short side surface of the notch, and a hooking hole 2c is formed in the vicinity of the short side surface of the notch to which the tension spring 7 is hooked. The second tilting element 3 is formed in a substantially flat plate shape, and a bearing hole 3a is formed near one short side surface, and a tilting shaft 3b serving as a tilting fulcrum is formed near the other short side surface. The operating portion case 6 is formed with a hooking projection 6a to which the tension spring 7 is hooked and a bearing hole 6b in which the tilting shafts 2c and 3b are rotatably engaged.

  A recess (not shown) is formed on the back surface of the button 1, the tip of the first tilting element 2 is disposed in the recess, and a pin 4 is press-fitted into the bearing holes 1 a and 2 a to The first tilting element 2 is rotatably coupled. Similarly, in the second tilter 3, the pin 5 is press-fitted into the bearing holes 1b and 3a so that the button 1 and the second tilter 3 are rotatably coupled. The tension spring 7 is hooked on the hooking hole 2c of the first tilting element 2 and the hooking protrusion 6a of the operation portion case 6, and the first tilting shafts 2b and 3b are engaged with the bearing hole 6b. The tilting element 2 and the second tilting element 3 are disposed in the operation unit case 6. The operating portion case cover 8 is covered with the operating portion case 6, and the fitting convex portion 6 d formed in the concave portion 6 c of the operating portion case 6 and the fitting hole 8 b formed in the protruding piece 8 a of the operating portion case cover 8 are fitted. Combined. At this time, the tilting shafts 2b and 3b of the first tilting element 2 and the second tilting element 3 are engaged with the bearing hole 8c, and the hooking protrusion 6a of the operation portion case 6 is engaged with the engaging hole 8d. As a result, the operation unit 18 is completed.

  As shown in FIG. 3, when the button 1 is operated in the right direction, the operation portion of the switch of the present invention configured as described above has the first tilting element 2 and the second tilting point with the tilting shafts 2b and 3b as fulcrums. The tilting element 3 tilts to the right. Then, the second tilting element 3 comes into contact with the inclination of the inner side surface of the operation portion case 6 and the state of the button 1 is maintained by the urging of the tension spring 7 to complete the operation. At this time, the tilting shafts 2b and 3b rotate with the operation of the button 1, and the electric circuit is opened and closed by operating the contact mechanism coupled to the tilting shafts 2b and 3b by this rotation.

As described above, the switch operating unit shown in the present embodiment is configured so that the button 1 can be tilted by disposing the first tilting element 2 and the second tilting element 3 on the button 1 so as to be rotatable. Since the force is distributed to the first tilting element 2 and the second tilting element 3, the first tilting element 2 and the second tilting element 3 are used to reduce the protruding portion of the button 1 from the operation unit case 6. Since a large operating force is not required even if the body is shortened, a light operation feeling can be obtained, and an inadvertent contact with the button 1 can be prevented by reducing the protruding portion of the button 1, thereby preventing malfunction. It has characteristics. Further, since the first tilting element 2 and the second tilting element 3 are rotatably arranged on the button 1, the contact mechanisms can be coupled to the tilting shafts 2b and 3b, respectively, so that the operation can be performed with one operation. Multiple contact mechanisms can be operated simultaneously.
Since the operation unit and the contact mechanism are independent units, the operation unit unit 18 can protect against electric shock even when the basic insulation of the contact mechanism is broken. In addition, since the operation unit and the contact mechanism are independent units, if the contact mechanism is structured to operate along with the rotation of the tilting shafts 2b and 3b, various contact mechanisms can be handled by changing the contact mechanism unit.
Furthermore, since the first tilting element 2 and the second tilting element 3 have different lengths, the rotation amounts of the tilting shafts 2b and 3b are different, and the operation amount of the contact mechanism that operates in accordance with this rotation can be changed. In addition, a different contact mechanism can be operated for each tilt axis, and various functions can be operated by one operation unit.

  4 and 5 show an example of a contact mechanism operated by the operation unit 18. Here, a structure in which the contact mechanism is coupled only to the tilting shaft 2b will be described. 9 is a movable contact piece, 10 is a first movable contact piece cover, 11 is a second movable contact cover that is fitted to the first movable contact piece cover 10 and sandwiches the movable contact piece 9, and 12 is a contact mechanism. A case, 13 is a tension spring hooked on the first movable contact cover 10 and the contact mechanism case 12, 14 is a terminal disposed on the contact mechanism case 12, and 15 is a contact mechanism case 12 so as to cover the terminal 14. The terminal cover 16 is fitted into the contact mechanism case 12, the contact mechanism case cover 16 is fitted into the contact mechanism case 12, and the screw 17 is screwed into the contact mechanism case 12. The movable contact piece 9 is formed by bending a plate-like conductive member into an arc shape, and projecting pieces 9a are formed at both ends of the arc toward the outer side of the arc. Contacts 9b and 9c are provided in contact with 14b, respectively. The first movable contact cover 10 is formed with a hooking projection 10a for engaging the tension spring 13 and a rotating shaft 10b, and the second movable contact cover 11 is formed with a rotating shaft 11a, and the rotating shaft 10b. And 11a as a center.

  The movable contact piece 9 is engaged with the first movable contact piece cover 10, and the movable contact piece 9 is sandwiched by the second movable contact piece cover 11 being fitted to the first movable contact piece cover 10. . At this time, one of the tension springs 13 is hooked on the hooking projection 10a of the first movable contact cover 10. The side surfaces of the contact mechanism case 12 are such that the fixed contacts 14 a and 14 b protrude from the terminal insertion hole 12 a to the inside of the contact mechanism case 12 and the fixed contact pieces 14 c and 14 d are disposed on the bottom surface of the contact mechanism case 12. The terminal cover 15 is covered from the side where the terminal 14 of the contact mechanism case 12 is disposed, and the fitting convex portion 12c formed in the concave portion 12b and the fitting hole 15b formed in the protruding piece 15a are fitted. Combined. The contact mechanism case 12 in which the terminal 14 is disposed is provided with the movable contact piece 9 sandwiched between the first movable contact cover 10 and the second movable contact cover 11. The rotary shaft 10b of the single cover 10 is engaged with the bearing holes 12e and 15c, and the other of the tension springs 13 is hooked on the hooking protrusion 12d. The contact mechanism case cover 16 is covered with the contact mechanism case 12, and the fitting protrusion 12g formed in the recess 12f and the fitting hole 16b formed in the protruding piece 16a are fitted. At this time, the rotating shaft 11a of the second movable contact cover 11 is engaged with the bearing hole 16c. Then, the screw 17 is screwed into the contact mechanism case 12 through the through holes 14e and 14f formed in the fixed contact pieces 14c and 14d from below the contact mechanism case 12, whereby the contact mechanism unit 19 is completed. .

  Then, as shown in FIG. 6, the operation unit 18 and the contact mechanism unit 19 are coupled by coupling the coupling holes 6 e, 8 e, 12 h, 15 d, and 16 d of each component with the coupling pin 20. At this time, the switch 21 is completed by fitting the tilting shaft 2b of the first tilting element 2 and the rotating shaft 10b of the first movable contact cover 10 to each other.

  In the switch of the present invention configured as described above, as shown in FIG. 7, when the button 1 is operated in the right direction, the tilting shaft 2b rotates to the right. By this rotation, the rotating shaft 10b of the first movable contact piece cover 10 fitted to the tilting shaft 2b rotates. With this rotation, the movable contact piece 9 rotates, the contacts 9b and 9c of the movable contact piece 9 come into contact with the fixed contacts 14a and 14b of the terminal 14, respectively, and the terminals 14 are electrically connected. At this time, the movable contact piece 9 ensures a sufficient contact force between the contact points by the biasing force of the tension spring 13. When the button 1 is operated in the left direction, the tilting shaft 2b rotates to the left, and the rotation shaft 10b rotates by this rotation. With this rotation, the movable contact piece 9 rotates, the contacts are separated, and the terminals 14 are opened. At this time, if the operation displacement of the button 1 exceeds a certain amount, the first movable contact piece cover 10 is urged in the opening direction by the tension spring 13 so that the movable contact piece 9 is also urged, and the contact is instantaneously made. A gap is secured. When the switch 21 is attached to a panel (not shown), the fixing hole 6f provided in the operation unit case 6 is screwed with a screw hole provided in the panel and a screw (not shown).

As described above, in the switch shown in this embodiment, the first tilting element 2 and the second tilting element 3 are rotatably disposed on the button 1, and the tilting shaft 2 b rotates as the button 1 is operated. In this way, the movable contact piece 9 is rotated to open and close the electric circuit, so that it is possible to perform a light operation and to prevent inadvertent contact with the button 1 by reducing the protruding portion of the button 1, thereby impairing operability. It has a feature that malfunction can be prevented without any trouble.
In addition, since the operation unit and the contact mechanism are independent units, a double insulation structure can be realized and various contact mechanisms can be easily handled.

  In this embodiment, the movable contact piece is an arc-shaped contact mechanism. However, if the contact mechanism is coupled to the tilting shaft that rotates in accordance with the operation of the button and moves in accordance with the rotation, the movable contact piece is used. The shape can be changed in various ways, and a contact mechanism using a movable contact piece such as a plate shape or a disk shape may be used. In addition, the movable contact piece is coupled to only one tilting shaft, but it may be coupled to each of the two tilting shafts, and the mounting method to the panel may be a one-touch mounting with a resin spring. Conceivable.

  In addition, this invention is not limited to said Example, A various deformation | transformation is possible based on the meaning of this invention, and these are not excluded from the scope of the present invention.

  The switch of the present invention can be used as a switch for preventing malfunction without impairing operability.

1 button 1a, 1b, 2a, 3a, 6b, 8c, 12e, 16c bearing hole 2 first tilting element 2b, 3b tilting shaft 2c hooking hole 3 second tilting element 4, 5 pin 6 operation part case 6a, 10a, 12d Hanging projection 6e, 8e, 12h, 16d Coupling hole 6c, 12b, 12f Recess 6d, 12c, 12g Fitting protrusion 6f Fixing hole 7, 13 Tension spring 8 Operation part case cover 8a, 9a, 15a, 16a Projection piece 8b, 15b, 16b Fitting hole 8d Engagement hole 9 Movable contact piece 9b, 9c Contact 10 First movable contact piece cover 10b, 11a Rotating shaft 11 Second movable contact piece cover 12 Contact mechanism case 12a Terminal insertion Hole 14 Terminal 14a, 14b Fixed contact 14c, 14d Fixed contact piece 14e, 14f Through hole 15 Terminal cover 16 Contact mechanism case cover 17 Screw 18 Operation part Tsu DOO 19 contact mechanism unit 20 coupling pin 21 switch

Claims (5)

  In a switch that opens and closes an electric circuit by tilting an operation unit that is tiltably disposed on a case, the operation unit includes a button, a first tilter that is pivotally disposed on the button, and a second tilting The tilting shaft is formed on the first tilting element and the second tilting element, the tilting shaft is rotatably engaged with a hole formed in the case, and the tilting axis serves as a fulcrum. The switch is characterized in that the operation portion tilts.   The switch according to claim 1, wherein the contact mechanism is operated by rotation of the tilting shaft accompanying operation of the operation unit.   2. The switch according to claim 1, wherein the first tilting element and the second tilting element have a substantially flat plate shape, and a coupling portion with the button and the tilting shaft are formed in the vicinity of a short side surface, respectively. The switch is characterized in that the length of the long side of the tilting element is different from that of the long side of the second tilting element.   The switch according to claim 1, wherein an elastic member is disposed between one of the first and second tilters and the case.   The switch according to claim 1, wherein the operation unit and the contact mechanism are configured as independent units.

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