JPS6155721B2 - - Google Patents

Description

[Detailed description of the invention]

This invention is a door that makes the interior light flash once in four operating steps, such that the contact is turned on when the door is first opened, then the contact is cut off when the door is closed and the door is opened again, and finally when the door is closed. This invention relates to an automatic flashing device for interior lights, etc., which is opened and closed. That is, the present invention connects a micro switch A that performs ON-OFF operation and a micro switch B that performs ON-ON-OFF-OFF operation in parallel,
This is an automatic flashing device for indoor lights, etc., which is characterized by having micro switches A and B respond to the opening and closing of the door. Hereinafter, one embodiment of the present invention will be described based on the drawings. In the perspective view of FIG. 1 showing the device of the present invention, a micro switch A and a micro switch B are arranged side by side in an H-shaped switch frame 1.
Furthermore, a U-shaped base 11 is housed above it along the side wall of the switch frame. A bearing portion 12 is bored in one outer side surface of the base 11, and this bearing portion 12
A lever 3 that responds to the opening and closing of the door is attached to the externally protruding end of the drive shaft 2, which is pivoted on the drive shaft 2, via an arm 13 fixed on the drive shaft 2. A roll 15 is attached to the tip of the lever 3 and is in contact with the door. A drive rod 4 is provided protrudingly on the outer periphery of the portion of the drive shaft 2 that protrudes into the base 11.
The drive rod 4 is in contact with a swinging piece 5 of a micro switch A that performs ON-OFF operation. The wire spring 14 that engages with the drive rod 4 and is fixed to the horizontal bar 16 is
This is to keep the lever 3 coaxial with the drive rod 4 pressed against the door. Next, at the end of the portion of the drive shaft 2 that projects into the base 11, a support shaft 6 is coaxially supported. A ratchet 7 and a pentagonal columnar rotor 8 integrated with the ratchet 7 are rotatably installed on the support shaft 6. The two may be integrated by integral molding of plastic, or may be made separately and bonded together. An elastic plastic pawl 10 fixed to a pawl support rod 20 protruding from the outer periphery of the drive shaft 2 is engaged with the ratchet 7, and when the lever 3 moves upward, the pawl 10 moves over the ratchet 7. When the lever 3 moves downward, the pawl 10 engages the ratchet 7 and rotates it downward. A detent 17 of the ratchet 7 is supported on the horizontal bar 16, and is pressed against the ratchet 7 by a contact support plate 18. A swinging piece 9 of a micro switch B is in contact with the pentagonal prismatic rotor 8, and a ratchet 7 is in contact with the lever 3.
The pentagonal columnar rotor 8 also rotates in accordance with the operation of the rotor 8. Note that the teeth of the ratchet 7 are made in multiples according to the number of corners of the pentagonal prism-shaped rotor 8, and
The flat portions and corner portions of the pentagonal prism rotor 8 are made to alternately come into contact with each other. In this example, the number of teeth is 10. FIG. 2 is a longitudinal sectional view of the rotor 8 portion of the embodiment shown in FIG. When the oscillating piece 9 of the micro switch B is pressed down by the corner of the prismatic rotor 8 as it rotates, the actuator 21 simultaneously descends, causing the conductive piece 22 to resist the leaf spring 23 and move the contact 24
It is designed to be connected by pressure. 25 is a dust-proof and moisture-proof protective case, and 26 is a lid. Since this invention is configured as described above,
When the door is closed, the lever 3 is set so that the drive rod 4 is held in the position where the contact of the switch A is held open, and the contact of the switch B is also set in the open state. The device operates as follows. That is, in the device of the present invention installed on the door as shown in FIG. Micro switch A pressed down on rod 4
The swinging piece 5 pushes down the conductive piece to close the contact and turn on the interior light. At this time, the pawl 10 engages and rotates the ratchet 7, and the pentagonal prism-shaped rotor 8 changes to a flat part, and the corner part becomes the rocking piece 9 of the micro switch B.
, and the contact of micro switch B is also closed. Next, when the door is closed after the user enters the room, the lever 3 rises together with the door, the drive rod 4 rotates upward, the swing piece 5 of the micro switch A is lifted, and the contact point of the micro switch A is closed. open. At this time, the pawl 10 runs idle on the teeth of the ratchet 7, and the corners of the pentagonal columnar rotor 8 remain in contact with the swinging piece 9 of the microswitch B. Therefore, the contacts of microswitch B remain closed, and the interior light is still on. When the user opens the door after relieving himself, the lever 3 descends, the drive rod 4 rotates downward, and the swinging piece 5 of the micro switch A also descends, closing the contact point of the micro switch A and turning on the interior light again. keep it in condition. At this time, the pawl 10 rotates the ratchet 7 again, so that the flat part of the pentagonal columnar rotor 8 comes into contact with the swinging piece 9 of the microswitch B, and the contact point is opened. Finally, when the door is closed, the lever 3 is lifted and the drive rod 4 rotates upward to push up the rocking piece 5 of the micro switch A, opening the contact point of the micro switch A. At that time, the pawl 10 moves on the ratchet 7. Since the motor runs idle, the flat part of the pentagonal prism-shaped rotor 8 remains in contact with the rocking piece 9 of the micro switch B, and the contact point of the micro switch B is also open, so that the interior light is turned off. The above four operating steps are shown in Table 1.

[Table] Next, the guide plate 27 on the side surface of the switch frame 1 in FIG. 3 will be explained. FIG. 4 is an enlarged perspective view showing this guide plate, and one corner of the guide plate 27 has a U
A U-shaped groove 28 is provided, and stoppers 29 and 30 are formed at both ends of the U-shaped groove 28. The drive shaft 2 passes through the U-shaped groove 28 and connects to the switch frame 1.
The arm 13 is fixed to the tip of the arm 13. By pressing the lever 3 against the stopper 29 of the guide plate 27 and abutting the lever 3 against the closed door and installing the device of the present invention on the door support, it is possible to set the device in a state where reliable operation can be obtained. .
Further, the stopper 30 is provided to prevent the drive rod 4 from coming into sliding contact with the swinging piece 5 more than necessary and being worn out. Reference numeral 31 denotes an auxiliary spring for supplementing when the force of the wire spring 14 engaged with the drive rod 4 is insufficient in durability or repulsive force. are engaged with the protrusions 32 on the guide plate 27, respectively. FIG. 5 is a circuit diagram of the device of the present invention, where A and B are microswitches, C is a power source, and D is an indoor light. The device of the present invention not only connects the circuit shown in FIGS. 1 and 2, but also wires the cord so that when the drive rod 4 pushes down the swinging piece 5, the contact of the microswitch A opens. You can also do 5
The wiring can also be arranged so that when the corner of the prismatic rotor 8 presses down the swing piece 9, the contact of the micro switch B opens. In the former case, just attach it to the door in the opposite direction, and in the latter case, turn it ON.
-OFF-ON-OFF: ON-ON-OFF-OFF
ON-OFF-ON-OFF: OFF-ON-ON-OFF
This does not affect how the device is installed. As described above, the automatic flashing device for indoor lights when a door is opened/closed according to the present invention has two microswitches connected in parallel, and one of the microswitches is turned on and off in response to the opening/closing of the door. , the other micro switch is connected to the mechanism that responds to the opening and closing of the door by a ratchet, and the ON-ON-OFF operation is performed.
- Since the switch is set to OFF and both flash once in each of the four operating steps, the switch can be used for an extremely long period of time, ensuring automatic flashing of interior lights in bathrooms, toilets, storerooms, garages, etc. It is something that can be done. Further, depending on whether the contact of the micro switch A is wired to be always open←→normally closed, the attachment location of the device of the present invention to the door can be arbitrarily changed.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an automatic flashing device for indoor lights, etc. that is activated by opening and closing a door according to the present invention, Figure 2 is a longitudinal cross-sectional view of the prismatic rotor portion of Figure 1, and Figure 3 shows how it is attached to the door. FIG. 4 is an enlarged perspective view of the main part of the guide plate portion of FIG. 3, and FIG. 5 is a circuit diagram. 1... Switch frame, 2... Drive shaft, 3... Lever, 4... Drive rod, 5... Rocking piece, 6... Support shaft,
7... Ratchet, 8... Prismatic rotor, 9...
Rocking piece, 10... pawl, A... micro switch, B... micro switch.

Claims (1)

[Claims] 1. Micro switch A that performs ON-OFF operation
and a micro switch B that operates ON-ON-OFF-OFF are connected in parallel, and the micro switches A and B respond to the opening and closing of the door. Flashing device. 2 A drive shaft 2 with a lever 3 connected to one end that responds to the opening and closing of the door is attached to the switch frame 1, and a drive rod 4 is provided protruding from the drive shaft 2.
The rocking piece 5 of the micro switch A that performs ON-OFF operation is brought into contact with the other end of the drive shaft 2 in the same axial direction as the other drive shaft 2, and a support shaft 6 is supported on the other end of the drive shaft 2. A prismatic rotor 8 integrated with the ratchet 7 is rotatably installed, and a rocking piece 9 of a micro switch B connected in parallel with the micro switch A is brought into contact with the prismatic rotor 8.
Furthermore, the pawl 10 mounted on the drive shaft 2 is engaged with the ratchet 7 to turn on the micro switch B.
An automatic flashing device for interior lights, etc., by opening and closing a door, as set forth in claim 1, characterized in that the device operates ON-OFF-OFF.