JP6352105B2 - Switch device and power supply tap having the same - Google Patents

Description

  The present invention relates to a switch device that switches on / off of energization to a load and a technology of a power strip having the switch device.

  2. Description of the Related Art Conventionally, a switch device used for a switch for switching on / off of energization to a load such as a lighting or a ventilation fan is referred to as a switch main body, or a knob (handle or operation unit) disposed on the switch main body so as to be swingable. And a switch mechanism disposed in the switch body. The switch mechanism includes a pair of terminals connected to the power supply side and the load side, and a switch mechanism that is movable by swinging the knob and opens and closes between the pair of terminals.

  For example, Patent Document 1 discloses a small switch with improved insulation performance. Further, Patent Document 2 discloses a small switch that does not have a support shaft in the operation unit and can perform a swinging operation of the operation unit with a side opposite to the pressing side as a fulcrum.

Japanese Utility Model Publication No. 7-4923 JP 2010-33994 A

  For example, a switch device that switches on / off of energization to a load by a swinging operation that changes the tilt, such as a seesaw, includes a support shaft that enables swinging at the center of the knob. The tilt of the knob is changed around the axis. In addition, in the switches disclosed in Patent Documents 1 and 2, in order to maintain the state after the on / off switching, a repulsive force from a spring member such as a spring or a leaf spring is applied to the knob. It is composed.

  However, when the repulsive force from the spring member is directly applied to the knob as in a conventional switch device, for example, when the knob is replaced or the spindle is damaged due to deterioration over time. When a component occurs, the component part such as a knob or a spring member may be ejected outward while being energized. Furthermore, the pressure between the contacts that have been in strong contact with each other due to the repulsive force of the spring member is weakened. As a result, the switch device may generate heat, which may impair safety.

  The main object of the present invention is to provide a switch device that can solve the above-described problems, ensure the safety of the device, and maintain the on or off state of energization of the load. Moreover, the power strip which has this switch apparatus is provided.

The switch device of the present invention is a switch device that switches between start and stop of energization of a load, and a switch main body that is a casing, and an operation that is arranged to swing with respect to the switch main body via a support shaft. Part, one end of which is connected to the support shaft, a spring member that presses the support shaft toward the operation unit, and a switch that switches the start or stop of energization in conjunction with the swinging motion of the operation unit. The switch body is formed with a restricting portion for restricting the pressing force against the support shaft from acting as a pressing force for pressing the operation portion outward . The control part has a projecting part in which the restricting part is formed, the operation part is formed in a bottomed rectangular cylindrical shape, and a hole is formed on each side surface of the part serving as a fulcrum of the swinging operation. The projection part is predetermined in the space. A locking portion that is provided with a gap and is formed in a shape that can be engaged with the hole is provided on a support shaft that is supported by the protruding portion, and the locking portion and the hole are engaged with each other. It is characterized by being deployed together .

Further, the power strip of the present invention is a power strip having a switch device that switches start or stop of energization of a load, and the switch device includes a switch body that is a casing and a support shaft with respect to the switch body. An operating portion arranged so as to be able to swing via a spring, one end of which is connected to the support shaft, a spring member that presses the support shaft toward the operating portion, and interlocked with the swinging motion of the operating portion. A switch mechanism that switches between starting and stopping energization, and restricting that the pressing force against the support shaft acts as a pressing force pressing the operation portion outward on the switch body. A restricting portion is formed , the switch body has a projecting portion on which the restricting portion is formed, and the operation portion is formed in a bottomed rectangular cylindrical shape and serves as a fulcrum for a swinging operation. A hole is formed on the side of In the internal space, the projection part is provided with a predetermined gap, and a locking part formed in a shape that can be engaged with the hole part is provided on a support shaft supported by the projection part. The locking portion and the hole portion are engaged and arranged .

  ADVANTAGE OF THE INVENTION According to this invention, while ensuring the safety | security of an apparatus, the ON state or the OFF state of electricity supply to a load can be maintained.

The perspective view which shows an example of the external appearance of the switch apparatus which concerns on this embodiment. The figure for demonstrating an example of each structure which a switch apparatus has. (A), (b) is a figure for demonstrating each state of ON / OFF in a switch apparatus. (A), (b) is a figure for demonstrating an example of the power strip which provided the switch apparatus.

  Hereinafter, embodiments will be described with reference to the drawings. Note that the switch device according to the present embodiment will be described by taking, as an example, a case where the switch device is used for a power strip (also referred to as a table tap or the like). In this power strip, the energization of each of a plurality of (for example, four) outlets arranged in the main body of the power strip is individually turned on / off, or the energization of the plurality of outlets is collectively turned on / off. The switch device is configured so that It should be noted that the number of outlets provided in the power strip main body and how many of these are managed can be arbitrarily set.

[Example Embodiment]
FIG. 1 is a perspective view showing an example of the appearance of the switch device according to the present embodiment.
1 includes a switch body 100, a knob 101, a switch holder 102 that holds the switch body 100, a rotary shaft (support shaft) 103 that enables the knob 101 to swing relative to the switch body 100, a load It comprises electrode terminals 110, 111, and 112 that constitute a switch mechanism that switches on / off of energization to.
The knob 101 functions as an operation unit for operating on / off of energization to the load according to the relative inclination with respect to the switch body. In addition, the electrode terminals 110, 111, and 112 are electrically connected to a power bus connected to a power supply, or an assembled wire that supplies power to a load.

The switch body 100 is formed to include a portion (protrusion portion) covered with a predetermined gap in a knob 101 formed in a cap shape (bottomed rectangular cylindrical shape) having an upper bottom surface and side surfaces. In other words, the protruding portion of the switch body 100 is disposed in the internal space of the knob 101 with a predetermined gap. The switch body 100 also forms an internal space in which the electrode terminals 110, 111, 112, etc. constituting the switch mechanism are arranged. In addition, each member of the switch mechanism deployed in the internal space can be configured such that the respective deployment position is defined via the switch holder 102, for example.
As shown in FIG. 1, the knob 101 is disposed so as to cover a predetermined portion of the switch main body 100 and is disposed so as to be swingable with respect to the switch main body 100 via a support shaft 103.

FIG. 2 is a diagram for explaining an example of each configuration of the switch device 10.
On the side surface of the knob 101, a hole 1011 is formed in each part serving as a fulcrum of the swinging operation. Further, as shown in FIG. 2, the switch body 100 is covered with the knob 101 and is inserted from the switch holder 102 side, and the pressing force (the spring member 104 of the spring member 104 is directed toward the knob 101 side through the spring member 104 described later). An inverted U-shaped regulating groove 1001 is formed to hold the support shaft 103 to which a repulsive force is applied at a predetermined position of the part.

The support shaft 103 is formed on each of the cylindrical shaft portion 1031 whose peripheral surface is in contact with the peripheral surface of the restriction groove portion 1001 and the end portion of the shaft portion 1031, and engages with the hole portion 1011 of the knob 101 (see FIG. 1). ) Including a locking portion 1032 formed in a possible shape (for example, a claw formed in a shape engaging with the hole portion 1011). When the hole portion 1011 and the locking portion 1032 are engaged, the swinging motion of the tab 101 is transmitted to the support shaft 103. That is, the support shaft 103 rotates at the fulcrum position according to a change in the relative inclination of the knob 10 with respect to the switch body 100.
Note that one end of a spring member 104 is connected to the support shaft 103 as shown in FIG. The other end of the spring member 104 is connected to a predetermined portion on the upper surface side of the contact piece 113, for example.

  The spring member 104 is provided in the switch device 10 in a state where a predetermined repulsive force is generated. In this state, the swinging motion of the knob 101 is transmitted to the spring member 104 via the locking portion 1032. As a result, the spring member 104 undergoes “bending”, that is, a change in shape, according to the swinging motion of the knob 101. Thereby, for example, either the on state (energized state) where the contact of the electrode terminal 110 and the contact of the contact piece 113 connected to the electrode terminal 111 abut or the off state (non-energized state) where the respective contacts are separated from each other. Can be maintained. This will be described later with reference to FIG.

  Further, the repulsive force of the spring member 104 acts as a pressing force that presses the support shaft 103 toward the knob 101 side. However, in the switch device 10 according to the present embodiment, transmission of the pressing force applied to the support shaft 103 to the knob 101 is restricted by the restriction groove portion 1001. Therefore, the repulsive force of the spring member 104 does not act as a force that pushes up directly so that the tab 101 jumps outward. That is, even if an external acting force is applied to the knob 101 and the engagement between the hole 1011 of the knob 101 and the locking portion 1032 of the support shaft 103 is released, the knob caused by the release of the engagement. No jump out of 101 occurs.

  Further, even when the engagement is released, the spring member 104 does not jump out to the outside by the support shaft 103 and the restriction groove portion 1001. This provides the same effect when the user arbitrarily replaces the knob 101, for example, when the switch device 10 is manufactured, or when damage due to aging occurs.

As described above, the restriction groove portion 1001 formed in the portion covered by the knob 101 functions as a restriction portion that restricts the protrusion of the knob 101, the spring member 104, and the like when the engagement is released.
In addition, a part or all of the upper and lower surfaces of the knob 101 is formed using a transparent or translucent material, and an LED (Light) is configured such that a light emitting element is turned on / off according to on / off of energization to a load An Emitting Diode) substrate 120 may be provided in the internal space of the switch body 100 so that the user can recognize the on / off state.

FIG. 3 is a diagram for explaining the on / off states of the switch device 10. FIG. 3A shows the off state, and FIG. 3B shows the on state.
For example, if the relative inclination of the knob 101 with respect to the switch body 100 is as shown in FIG. 3A, the contact of the electrode terminal 110 and the contact of the contact piece 113 connected to the electrode terminal 111 are separated from each other. Off state (non-energized state). In this state, it can be seen that the spring member 104 bends so that its central portion protrudes to the left as viewed from the front of the figure. By bending the spring member 104 in this way, the tilt of the knob 101 is maintained in the off state. In the off state, for example, the light emitting element on the LED substrate 120 can be lit.

  If the relative inclination of the knob 101 with respect to the switch body 100 is as shown in FIG. 3B, the contact of the electrode terminal 110 and the contact of the contact piece 113 connected to the electrode terminal 111 are matched. The contacted ON state (energized state) is entered. In this state, it can be seen that the spring member 104 bends so that its central portion protrudes to the right when viewed from the front of the figure. By bending the spring member 104 in this way, the tilt of the knob 101 is maintained in the on state. In the on state, for example, the light emitting element on the LED substrate 120 can be turned off.

FIG. 4 is a diagram for explaining an example of a power strip provided with the switch device 10.
FIG. 4A is a partial enlarged view of a power strip configured to be able to turn on / off the energization of a plurality of insertion ports collectively, and FIG. 4B shows the energization of each of the plurality of insertion ports individually. It is the elements on larger scale of the power strip comprised so that ON / OFF was possible.
A power strip 20 illustrated in FIG. 4A is an example of a power strip configured to be able to switch on / off the energization of the plurality of insertion openings 200 collectively via the switch device 10. The power strip 21 shown in FIG. 4B is an example of a power strip configured to be able to individually switch energization of the plurality of insertion openings 200. In this case, one switch device 10 is provided for one insertion port 200.

Further, as described above, the knob 101 is mounted so as to cover the restriction portion formed on the switch body 100 and is connected to the locking portion 1032 of the support shaft 103. Therefore, as shown in FIGS. 4A and 4B, when replacing the knob 101 protruding from the casing surface of the power strip, it is not necessary to disassemble the power strip, and the work can be easily performed. it can.
Also, a flange portion protruding outward can be formed on the outer peripheral side of the opening of the knob 101. In this case, the size (outer periphery size) of the formed brim portion is made larger than the switch hole of the power tap casing. Thereby, even if the knob 101 is detached from the switch body 100, it is possible to prevent the knob 101 from being caught in the switch hole and jumping outward from the power tap housing. Even when the knob 101 is configured in this way, the knob 101 can be replaced without disassembling the switch device 10 itself.

  As described above, the switch device 10 according to this embodiment is configured such that the repulsive force of the spring member 104 does not directly act on the knob 101 by the support shaft 103 and the restricting portion. Thereby, even if it is a case where the engagement state of the knob 101 and the spindle 103 is cancelled | released, it can suppress that components, such as the said knob 101 and the spring member 104, jump out outward.

  Further, it is possible to prevent the switch device 10 from being heated and ignited due to the popping out of the components due to the release of the engaged state or the contact contact failure due to the looseness of the engagement, thereby ensuring the safety of the device. Further, since the component parts do not pop out when the knob 101 is replaced, the component replacement operation, maintenance, and the like can be easily performed.

  The embodiment described above is for explaining the present invention more specifically, and the scope of the present invention is not limited to these examples.

DESCRIPTION OF SYMBOLS 10 ... Switch apparatus 20, 21 ... Power supply tap, 100 ... Switch body, 101 ... Knob, 102 ... Switch holder, 103 ... Support shaft, 104 ... Spring member, 110, 111, 112... Electrode terminals, 113... Contact pieces, 200.

Claims (3)

A switch device that switches between starting and stopping energization of a load,
A switch body that is a housing;
An operation unit arranged to be swingable with respect to the switch body via a support shaft;
One end of which is connected to the support shaft, and a spring member that presses the support shaft toward the operation portion side;
A switch mechanism that switches between start and stop of energization in conjunction with the swinging motion of the operation unit,
The switch body is formed with a restricting portion that restricts the pressing force against the support shaft from acting as a pressing force pressing the operation portion outward .
The switch body has a protruding portion where the restricting portion is formed,
The operation portion is formed in a rectangular tube with a bottom, and a hole is formed in each side surface of a portion serving as a fulcrum of the swinging operation, and the protruding portion is provided with a predetermined gap in the internal space. And the latching | locking part formed in the shape which can be engaged with the said hole is provided in the spindle supported by the said projection site | part, The said latching part and the said hole are engaged, and it is deployed. It is characterized by
Switch device. The shape of the spring member is deformed in conjunction with the swinging motion of the operation portion via the support shaft, and the energized state or energized stop state of the load is maintained.
The switch device according to claim 1 . A power strip having a switch device for switching start or stop of energization of a load,
The switch device is
A switch body that is a housing;
An operation unit arranged to be swingable with respect to the switch body via a support shaft;
One end of which is connected to the support shaft, and a spring member that presses the support shaft toward the operation portion side;
A switch mechanism that switches between start and stop of energization in conjunction with the swinging motion of the operation unit,
The switch body is formed with a restricting portion that restricts the pressing force against the support shaft from acting as a pressing force pressing the operation portion outward .
The switch body has a protruding portion where the restricting portion is formed,
The operation portion is formed in a rectangular tube with a bottom, and a hole is formed in each side surface of a portion serving as a fulcrum of the swinging operation, and the protruding portion is provided with a predetermined gap in the internal space. And the latching | locking part formed in the shape which can be engaged with the said hole is provided in the spindle supported by the said projection site | part, The said latching part and the said hole are engaged, and it is deployed. It is characterized by
Power strip.

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