JPH0129953Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a switch that opens and closes multiple contacts, such as for AC and DC, with a single operation. This relates to a switch that has a time difference in its operation.

Generally, in order to provide a time difference between the contact closures of AC and DC circuits, it is necessary to use two switches or to provide two separate sliders within one switch. Therefore, there is a drawback that the switch requires a large equipment space and is prone to erroneous operation.

The present invention solves the above-mentioned conventional problems by allowing multiple contacts to be closed at different times with a single push button operation, thereby saving switch equipment space and improving circuit design. The purpose is to provide a switch that allows for the liberalization of

The switch according to the present invention includes, in a casing, an operating slider that slides back and forth, a spring that urges the operating slider to an initial position, and a differential slider. are connected via a hole extending in the direction of movement of the operating slider and a protrusion that moves freely within this hole, and when the operating slider reciprocates, the differential slider moves with a delay by the distance of free movement between the hole and the protrusion. Inside the casing is a first actuator that is opened and closed by a first actuator provided on an operating slider.
and a second contact that is opened and closed with a time difference with respect to the opening and closing operation of the first contact by a second actuator provided on a differential slider. be.

In the present invention, when the operation slider is reciprocated, the differential slider moves with a time difference. The operation slider is provided with a first actuator, and the differential slider is provided with a second actuator, and the first actuator and the second actuator connect the first contact point and the second actuator. The contacts are operated with a time difference.

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is an exploded perspective view of the switch according to the present invention.
FIGS. 2A, 3A, 4A, and 5A are vertical sectional views showing each assembled switch in each operation.

Reference numeral 1 in the figure is a casing made of an insulating material. On the upper surface of the casing 1, there is a protrusion 1a at the rear.
However, a pair of pins 1b and a pair of protrusions 1c are integrally molded on the front part. The upper surface of the casing 1 is covered by a cover plate 2 and a cap 3. The cover plate 2 is made of an insulating plate, and has a groove 2a at its rear end and cutouts 2b at both sides of its front end. The cover plate 2 is positioned by fitting the groove 2a into the protrusion 1a of the casing 1 and fitting the notch 2b into the pin 1b.
The cap 3 is molded from resin.
Fitting holes 3a are formed on both sides of the cap 3, and the cap 3 is positioned by fitting the fitting holes 3a into the protrusions 1c of the casing 1. On the other hand, grooves 1d and 1e are formed on both sides of the casing 1.
A mounting plate 4 made of sheet metal is fitted into the inside of the housing 1e. A pair of fixing claws 4a and 4b are provided at the upper end of the mounting plate 4, respectively. The cap 3 is placed on the upper side of the cover plate 2, and has fixing claws 4a,
4b, this cap 3 is caulked and fixed. Thereby, the casing 1, cover plate 2, cap 3, and mounting plate 4 can be assembled together.

Two sets of contact plates 5, 6 and 7, 8 are mounted within the casing 1. Each contact plate 5, 6,
Support pieces 5a, 6a, 7a, 8a are attached to the upper ends of 7 and 8.
However, support pieces 5b, 6b, 7b, and 8b are formed at the lower end. These support pieces 5a, 6a, 7a, 8
a is a support slit 2 formed in the cover plate 2;
c, 2b, and supporting pieces 5b, 6b,
7b, 8b are inserted into support slits (not shown) formed in the bottom plate of the casing 1, and each contact plate 5, 6, 7, 8 is fixed therein. Furthermore, a pair of pressure contact pieces 5c, 6c, 7c, and 8c are formed in the center of each contact plate 5, 6, 7, and 8. When the contact plates 5, 6, 7, and 8 are installed in the casing 1, the pressure contact pieces 5c and 7c are attached to the casing 1.
The pressure contact pieces 6c,
8c is pressed against the other inner surface 1g. Furthermore, each contact plate 5, 6, 7, 8 has leaf contacts 5d, 6d.
(second contact) and leaf contacts 7d, 8d (first contact) are bent and formed. Each leaf contact 5
d, 6d, 7d, and 8d are elastically deformable, and within the casing 1, the leaf contacts 5d, 6d, and 7d
, 8 and d are in pressure contact with each other. Further, protrusions 5f, 6f, 7f, 8f protruding inward are integrally formed at the center of each leaf contact 5d, 6d, 7d, 8d. Similarly, terminals 9, 10, 11, and 12 are installed inside the casing 1. The upper ends 9a, 10a of the terminals 9, 10 project upwardly from a support slit 2e formed in the cover plate 2, and the upper ends 11a, 12a of the terminals 11, 12 project upwardly from the support slit 2f. Each terminal 9,1
0, 11, 12 lower ends 9b, 10b, 11b, 1
2b projects downward from a support slit (not shown) formed in the bottom plate of the casing 1. The center portion 9c of the terminal 9 is held between the pressure contact piece 5c of the contact plate 5 and the inner surface 1f of the casing 1, and the center portion 10c of the terminal 10 is held between the pressure contact piece 6c of the contact plate 6 and the other side of the casing 1. It is held between the inner surface 1g. Similarly, the center portion 11c of the terminal 11 is the pressure welding piece 7.
between the center part 12 of the terminal 12 and the inner surface 1f.
c is held between the pressure contact piece 8c and the inner surface 1g. As a result, the terminal 9 and the contact plate 5, the terminal 10 and the contact plate 6, the terminal 11 and the contact plate 7, and the terminal 12 and the contact plate 8 are electrically connected.

Inside the casing 1, there is a slider 1 for operation.
3 and a differential slider 14 are slidably provided. The slider 13 is made of resin, and has a collar 13a integrally molded at its front end and a mounting rod 13b at its tip. This mounting rod 13b is for mounting a push button (not shown). A rib 13c is formed at the lower end of the slider 13, and a groove 13d is formed at the front upper surface. This rib 13c is inserted into the guide groove 1h on the bottom surface of the casing 1, and the guide rib 3b on the bottom surface of the cap 3 is inserted into the groove 13d. And slider 1
3 slides while being guided by the guide groove 1f and the guide rib 3b. Further, a step 13e is formed on the front upper surface of the slider 13, and when the slider 13 is inserted into the deepest part of the casing 1, this step 13e comes into contact with the tip stopper surface 3c of the cap 3. .

A pin 15 and a spring 16 (not shown in FIG. 1) are installed inside the cap 3. pin 15
is formed into a U-shape, and one end 15a is rotatably inserted into the support hole 3d of the cap 3. The other end 15b is connected to a heart cam groove 13 formed on the upper surface of the slider 13.
It is inserted into f. Further, the pin 15 is always pressed downward in the figure by the spring 16. When the slider 13 is pushed inside the casing 1, the end 15b of the pin 15 traces inside the heart cam groove 13f. Further, a return spring 17 is interposed between the collar 13a of the slider 13 and the mounting plate 4, and the slider 13 is urged in the projecting direction by its elastic force.

The differential slider 10 is also molded from resin like the slider 9. Locking portions 14a and 14b are provided protruding from this upper surface. On the other hand, at the rear end of the slider 13, a rectangular hole-shaped restraint part 13g,
13h is drilled. Then, the locking portion 1
4a is inserted into the restraint part 13g, and the locking part 14b is inserted into the restraint part 13h (Fig. 2A,
(See Figure B). Furthermore, a hysteresis (clearance) x is provided between the restraint parts 13g, 13h and the locking parts 14a, 14b, and when the slider 13 is slid within the casing 1, the distance corresponding to the hysteresis x is , the differential slider 14 slides with a delay. A first actuator 13i is provided on the lower surface of the slider 13, and a differential slider 1
A second actuator 14c is integrally formed on the lower surface of each of the actuators 4. As shown in Fig. 2C, each actuator 1
3i and 14c have a boat-shaped cross section and act to open and close the leaf contacts 7d and 8d as well as 5d and 6d. Further, a rib 13j is integrally formed at the lower end of the actuator 13i, and a rib 14d is integrally formed at the lower end of the actuator 14c. Each of these ribs 13j, 14
d is inserted into the guide groove 1h on the bottom plate of the casing 1 together with the rib 13c.

Next, the operation of the switch with the above configuration will be explained.

FIG. 2A shows a state in which the slider 13 is not pressed. At this time, the slider 13 is at the initial position (the position most protruding from the casing 1) due to the elastic force of the return spring 17. Slider 13
A restraint part (square hole) 13g formed at the rear of the
13h is the locking portion 14a, 14 of the differential slider 14.
b is pulled to the left in the figure, and the differential slider 14
is moving to the left in the figure together with the slider 13 (Figure 2B). In this state, the actuator 13i provided on the slider 13 is interposed between the protrusion 7f of the leaf contact 7d and the protrusion 8f of the leaf contact 8d, and the leaf contacts 7d and 8d are open. Similarly, the actuator 14c provided on the differential slider 14 is interposed between the protrusion 5f of the leaf contact 5d and the protrusion 6f of the leaf contact 6d,
Leaf contacts 5d and 6d are also open.

When a push button (not shown) attached to the mounting rod 13b is pressed, the slider 13 moves to the right in the figure against the return spring 17. At the beginning of this movement operation, the actuator 14c is held between the protrusions 5f and 6f of the leaf contacts 5d and 6d, so the differential slider 14 does not move and only the slider 13 moves.
Then, the restraint parts 13g, 13h and the locking part 14a,
When the hysteresis x with respect to the differential slider 14b becomes 0, the differential slider 14 is pushed by the slider 13 and begins to move to the right in the figure. In this way, the differential slider 14 starts moving after a certain time delay with respect to the slider 13, so the actuator 13i provided on the slider 13 first comes out of the protrusions 7f, 8f of the leaf contacts 7d, 8d. At this time, as shown in FIGS. 3A to 3C, the leaf contacts 5d and 6d are still in the OFF state, and only the leaf contacts 7d and 8d are in the ON state. Further slider 13 from the state shown in FIG. 3A.
Press to move the slider to the position shown in Figure 4A, i.e. slider 1.
3 step 13e and the front end stopper surface 3 of the cap 3
When the slider 13 is moved to the full stroke position where the leaf contacts 5d and 6d come into contact with each other, the actuator 14c of the differential slider 14 also touches the protrusions 5f and 6f of the leaf contacts 5d and 6d.
Come out from within. At this time, leaf contact 5
d, 6d and leaf contacts 7d, 8d are both ON
(Figure 4C). Note that while the slider 13 moves, the end portion 15b of the pin 15 traces the inside of the heart cam groove 13f.

Next, when the pushing force on the slider 13 is removed from the full stroke position in FIG. 4A, the slider 1
3 is returned by the elastic force of the return spring 17. When the slider 13 returns slightly as shown in FIG. 5A, the end 15b of the pin 15 enters the lock point 13k (see FIG. 2B) in the heart cam groove 13f, and the slider 13 remains in that position. Locked. During the transition from the full stroke position to this lock position, the actuator 14 of the differential slider 14
c lightly contacts the protrusions 5f and 6f of the leaf contacts 5d and 6d, so the differential slider 14 remains and only the slider 13 returns to the lock position (FIGS. 5A and 5B). Then, the actuator 13i of the slider 13 is connected to the projections 7f of the leaf contacts 7d, 8d,
Intervene within 8f. That is, in this locked position, the leaf contacts 5d, 6d are closed, and the leaf contacts 7d, 8d are open.

To unlock the slider 13, push the slider 13 from the locked position to the full stroke position shown in FIG. 4A. At this time, the end portion 15b of the pin 15 is at the lock point 1 of the heart cam groove 13f.
It's out of 3k. After that, if the pushing force against the slider 13 is removed, due to the elastic force of the return spring 17,
The slider 13 returns to the initial position (FIG. 2A) through the state shown in FIG. 5A. In other words, the operation of each contact is similar to that of one leaf contact 5d, 6d when locked.
is closed and the other leaf contacts 7d, 8d are open (FIG. 5C), then both leaf contacts 5d, 6d and 7d, 8d are both closed (FIG. 4C). When the slider 13 is returned from the full stroke position by the return spring 17, the actuator 14c first moves toward the protrusion 5 as shown in FIG. 5C.
The differential slider 14 remains in contact with f and 6f, and only the slider 13 moves to the left in the figure.
Actuator 13i intervenes between protrusions 7f and 8f.
After that, the restraint parts 13g and 13h of the slider 13 are
The right end of the slider pulls the locking portions 14a and 14b, and the differential slider 14 moves to the left in the figure together with the slider 13. Then, the actuator 14 of the differential slider 14
c intervenes in the protrusions 5f and 6f, and the leaf contact 5
d and 6d are opened. In this way, slider 13
is returned by the return spring 17, the leaf contacts 7d and 8d close first, and the leaf contacts 5
d and 6d close with a delay.

That is, in this switch, after the slider 13 is pushed and locked, the pair of leaf contacts 5d and 6d maintain the ON state until the lock is released again. In addition, other sets of leaf contacts 7d and 8d
is OFF-ON-OFF while the slider 13 goes from the initial position to the lock position, and repeats OFF-ON-OFF again while returning from the lock position to the initial position. Fig. 6 is a graph showing the closed state of the contacts, and the upper row shows the leaf contacts 5d,
6d ON/OFF, bottom row is leaf contact 7
d and 8d are ON/OFF, and P indicates the lock position of the slider 13.

An example of using this switch is leaf contact 5.
A power supply AC circuit is connected to terminals 9 and 10 that conduct to the leaf contacts 7d and 6d, and a relay driving DC circuit is connected to terminals 11 and 12 that conduct to the leaf contacts 7d and 8d. By one cycle operation of the slider 13,
This means that it is possible to switch the AC circuit ON and OFF and to generate a pulse to the DC circuit twice (see Figure 6).

In the illustrated embodiment, the slider 13 is provided with rectangular hole-shaped restraining portions 13g, 13h, and the differential slider 14 is provided with protruding locking portions 14a, 14b. A protruding restraint part may be formed in the differential slider 14, a square hole-shaped locking part may also be provided in the differential slider 14, and the restraint part may be inserted into the locking part.

As described above, according to the present invention, an operating slider and a differential slider are provided, and both sliders are connected with a free movement distance by a hole and a protrusion. A first contact is operated by a first actuator provided on the operating slider, and a second contact is opened and closed by a second actuator provided on the differential slider. A contact point is provided. Therefore, when the operation slider is pressed, the differential slider operates with a time difference, so that the second contact can be opened and closed with a time difference with respect to the opening and closing of the first contact. Become. Therefore, each contact can close a DC circuit and an AC circuit, allowing a single switch to greatly improve design flexibility.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is an exploded perspective view of the switch, Figure 2A is a vertical sectional view of the switch showing the initial state, and Figure 2B is a plan view showing the relationship between the slider and differential slider at this time.
Figure 2C is a plan view showing the contact points at this time, Figure 3A
The figure is a vertical cross-sectional view of the switch showing the state in which the slider starts moving, Figure 3B is a plan view showing the relationship between the slider and differential slider at this time, Figure 3C is a plan view showing the contact points at this time, and Figure 4A. 4 is a longitudinal sectional view of the switch showing the full stroke state of the slider.
Fig. B is a plan view showing the relationship between the slider and the differential slider at this time, Fig. 4C is a plan view showing the contact points at this time, Fig. 5A is a longitudinal sectional view of the switch showing the locked state of the slider, and Fig. 5B is a plan view showing the relationship between the slider and the differential slider. is a plan view showing the relationship between the slider and the differential slider at this time, No. 5C
The figure is a plan view showing the contacts at this time, and FIG. 6 is a diagram showing the ON and OFF states of each contact. 1...Casing, 2...Cover plate, 3...Cap, 4...Mounting plate, 5d, 6d, 7d, 8d
... leaf contact, 9, 10, 11, 12 ... terminal, 13 ... slider, 13g, 13h ... restraint section, 13i ... actuator, 14 ... differential slider,
14a, 14b...locking portion, 14c...actuator,
15, 16, 13f...Lock mechanism, 17...Return spring, x...Hysteresis.

Claims (1)

[Scope of utility model registration request] An operating slider that slides back and forth, a spring that urges the operating slider to the initial position, and a differential slider are provided in the casing, and the operating slider and the differential slider move the operating slider. The differential slider is connected through a hole extending in the direction and a protrusion that moves freely within the hole, so that when the operating slider reciprocates, the differential slider moves with a delay by the distance of free movement between the hole and the protrusion. Inside the casing, there is a first contact that is opened and closed by a first actuator provided on the operating slider, and a second contact that is opened and closed by a second actuator provided on the differential slider. A switch that is provided with a second contact that opens and closes with a time difference with respect to the opening and closing operations.