JPS5814010B2 - Okretsuchi - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a delay switch, and its purpose is to provide a delay switch that has both a normal switch function and a switch function based on delay operation, and has a simple configuration. It is on offer.

An embodiment of the present invention will be described in detail below with reference to the drawings.

Reference numeral 2 denotes an oil dashpot, which is formed by housing a magnetic plunger 1 and a return spring 15 in a cylinder 14 with a bottom, filling it with oil 16, and sealing the opening of the cylinder 14 with a pole head 3. be done.

A bypass yoke 4 is arranged at the end of the oil dashpot 2 opposite to the pole head 3, and a yoke 5 is arranged in the middle part.
are placed in one place.

The handle 6 is configured to see-saw with a support shaft 17, and a permanent magnet 7 having an armature pole 8 and a yoke pole 9 is attached to the lower surface of the handle 6.

The armature 11 is connected to a machine base 19 by a shaft portion 18 provided at the upper end.
The armature pole facing part 26 and the pole head facing part 21 are pivotally connected to each other and bent in a stepped shape, and the contact spring 22 is engaged with the pole head facing part 21.
It is designed to separate the parts.

23 is a fixed contact plate. A movable contact plate 25 is pivotally attached to the connecting plate 24 to which the contact spring 22 is fixed, and a coil spring 26 is disposed between the lower surface of the portion 6a of the handle 6 and the upper end of the movable contact plate 25, and the movable contact plate 27 and A normal contact 12 provided at a portion facing the contact plate 25 is opened and closed by operating the handle 6.

Normal contact 1 is formed by the movable contact plate 25 and the coil spring 26.
Contact drive means for opening and closing 2 is configured.

The push button 13, which is stable in two positions (up and down), has an integral L-shaped protrusion 28 on the side of the lower end, and when the contact plate 27 having spring properties is brought into contact with the lower surface of the protrusion 28 and the push button 13 is pushed in, the contact plate 27 is pressed by a protrusion 28 to normally close the contact 12.

The contact plate 27 is fixed to the tip of the fixed terminal plate 29.

The push button 13 is urged upward by a push-up spring 30, and a protrusion 31 and a recess 32 are formed at different levels on the side circumference of the push button 13, and engage with the upper end protrusion 34 of an L-shaped piece 33, respectively. Spring 3
The lower projection 37 of the engagement spring 35 is pressed laterally by the tip pushing portion 38 at the tip of the horizontal side portion of the L-shaped piece 33.

Assuming that the push button 13 is in a protruding and stable state as shown in FIG.
The upper engaging protrusion 36 of the engaging spring 35 engages with the recess 32 of 3, and the push button 13 is stabilized in the pressed state as shown in FIG.

For this reason, the projection 28 of the push button 13 forcibly pushes the contact plate 27 downward, and the normal contact 12 is forcibly closed regardless of the operation of the handle 6.

Next, when the push button 13 is further pressed from the state shown in FIG. As a result, the lower protrusion 37 of the engagement spring 35 is pushed laterally and locked in that state.

Therefore, the push button 13 returns upward due to the elastic force of the push-up spring 30, as shown in FIG. 2, without the upper engagement protrusion 36 and the recess 32 engaging.

At this time, the protrusion 31 of the push button 13 is connected to the upper end protrusion 3 of the L-shaped piece 33.
4 to rotate the L-shaped piece 33.
3 is disengaged from the lower protrusion 37 of the engagement spring 35, and the contact plate 27 is restored to the stable protruding state shown in FIG.
is in a steady state, and contact 1 is normally closed by operating handle 6.
2 dissections are performed.

On the other hand, when the handle 6 is operated, the armature pole 8 and yoke pole 9 of the permanent magnet 7 are connected to the armature 11.
The armature pole opposing portion 20 and the yoke 5 or the yoke 5 and the bypass yoke 4 are selectively opposed to each other.

That is, when the push button 13 is in the pressed state as shown in FIG. 5a, and the handle 6 is operated to the on side as shown in FIG.
are opposed to the yoke 5 and the bypass yoke 4, respectively, and form a magnetic path passing through the yoke 5, the magnetic plunger 1, and the bypass yoke 4. Therefore, the magnetic flux passing through the armature 11 disappears, and the armature 11 is connected to the contact spring 22. Pushed apart by the spring force, the delay contact 10 is closed as shown in FIG. 5d without any delay time.

At this time, since the push button 13 is in the pressed state, the normal contact 12 is closed as shown in FIG. 5c, and the overall switch function is maintained at time t3 as shown in FIG.
is turned on.

Incidentally, regardless of whether the push button 13 is in the protruding state or in the depressed state, the handle 6 is able to see-saw freely due to the elastic movable contact 25 and the coil spring 26.

Next, when the handle 6 is operated to the OFF side at time t4, the permanent magnet 7 becomes the state shown by the solid line in FIG. 2, and both poles 8 and 9 oppose the armature 11 and the yoke 5, respectively.

However, the magnetic plunger 1 is initially in the state shown in chain lines due to the resilient force of the return spring 15, and after the handle 6 is operated to the off side, it resists the resilient force of the return spring 15 and the viscosity of the oil 16. The magnetic plunger 1 gradually moves to the right in the figure.

After a certain delay time has elapsed, the tip of the magnetic plunger 1 reaches the pole head 3 as shown by the solid line in the figure, and at this time, it passes from the permanent magnet 7 through the armature 11, the ball head 3, the magnetic plunger 1, and the yoke 5, and then returns to the permanent magnet. The number of magnetic fluxes reaching 7 suddenly increases, and as a result, the armature hole facing part 11 of the armature 11 and the ball head facing part 21 are connected to the armature pole 8 of the permanent magnet 7 and the pole head 3 of the oil dashpot 2, respectively. The contact spring 22 engaged with the armature 11 is driven by the attraction force, and after a certain period of time (the shaded area in FIG. 5e) after the handle 6 is turned off, the contact spring 22 is closed at time t5. 10 are released.

Therefore, the overall switch function when the push button 13 is in the depressed state is as shown on the right side of FIG. 5e.

Next, when the push button 13 is in the protruding state, it is as shown on the left side of FIG. 5.

That is, when the push button 13 is in the protruding state, the normal contacts 12 are freely opened and closed according to the operation of the handle 6, so that the normal contacts 12, 12,
The delay contacts 10 are both turned on as shown in FIGS. 5c and 5d, so that the entire switch function is also turned on as shown in FIG. 5e.

Next, when the handle 6 is turned off at time t2, the normal contact 12 is immediately opened, and since the normal contact 12 and the delayed contact 10 are electrically connected in series, the entire switch function is terminated at time t2. It turns off immediately.

Note that the delay contact 10 itself turns off after a certain delay time has elapsed.

That is, in this case, the circuit is immediately interrupted regardless of the opening timing of the delayed contact 10.

As described above, the present invention has a ball head and a bypass yoke arranged at both ends of an oil dashpot having a magnetic plunger, and a yoke arranged in the middle thereof, and an armature pole and an armature pole fixed to a permanent magnet fixed to a handle. A yoke pole is provided, and an armature is formed which is attracted and driven to face the above-mentioned pole head and armature pole and whose contacts open with a delay during attraction, and by operating a handle, the permanent magnet armature pole and yoke pole are connected to the armature, respectively. In a delay switch which is arranged to face the yoke or the yoke and the bypass yoke, the armature is driven by the operation of the handle to open and close the delay contact, and the delay contact is driven by the same operation of the handle and is integrated with the handle. A normal contact that is opened and closed by a contact driving means provided on the handle is interlocked with the normal contact via the handle, and the normal contact and the delayed contact are electrically connected in series, so that the normal contact can be turned on regardless of the operation of the handle. Since the handle is turned on when the push button is pressed, the normal contact is always turned on by the contact drive means, so the delayed contact is immediately turned on, and when the handle is turned off, the pole head is turned on. By using a delay mechanism such as an armature or an armature, it is possible to obtain the function of a delay operation switch in which the delay contact is opened after a certain period of time has passed after the handle is operated, and when the push button is protruded, the normal contact is released from the push button. It has been opened and opened, and if you turn the handle on in this state,
Since the normal contact and the delayed contact are linked via the handle, they are both immediately closed and the circuit becomes conductive. Also, when the handle is turned off, the normal contact is immediately opened, so the delayed contact is closed by the delay mechanism. The circuit can obtain the function of a normal switch that opens immediately regardless of whether it is opened, and in this way, by adding a simple configuration, it is possible to have both the function of a normal switch and the function of a delayed action switch. It has been possible to provide a delay switch that is equipped with multiple functions and can select both of these functions with a simple operation.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a mechanical part of an embodiment of the present invention, Fig. 2 is a reduced side view with a partial cross section of the same, Fig. 3 is an external perspective view of the same, and Fig. 4 A to D are implementations of the same. FIG. 5 is an explanatory diagram of the operation of the push button used in the example, and 1 is a magnetic plunger, 2 is an oil dashpot, 3 is a pole head, 4 is a bypass yoke, 5 is a yoke, 6 is a handle, 7 is a permanent magnet, 8 is an armature pole, 9 is a yoke pole, 10 is a delay contact, 11 is an armature, 12 is a normal contact, and 13 is a push button.

Claims (1)

[Claims] 1 Place a pole head and a bypass yoke at each end of an oil dashpot having a magnetic plunger, place a yoke in the middle, and attach the armature pole and yoke pole to a permanent magnet fixed to the handle. A pole head and an armature pole face each other to form an armature that is driven by suction to open the suction contact with a delay, and by operating a handle, the permanent magnet armature pole and yoke pole can be connected to the armature and yoke or the yoke and bypass yoke, respectively. In the delay switch, the delay contact is opened and closed by driving the armature when the handle is operated, and the contact driving means is driven by the same operation of the handle and is integrated with the handle. In addition to interlocking the normal contacts that are opened and closed via the handle,
A delay switch characterized in that the normal contact and the delay contact are electrically connected in series, and a push button is provided to turn on the normal contact regardless of the operation of the handle.