JPS596464B2 - Switching electromagnetic switch - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a switching electromagnetic switch that switches contacts using an electromagnetic solenoid.

Conventional switching electromagnetic switches of this type require a special and complicated locking device incorporating an elastic member to hold the switch on the switching side, and the overall size increases due to the interlocking structure with such a locking device. However, there are disadvantages such as a complicated structure, a tendency to break down, and difficulty in inspection and repair.

The present invention has been devised in view of the deficiencies of the conventional switching electromagnetic switches as described above and to eliminate these.

To explain the present invention in detail with reference to the drawings, there is a first mounting frame 2 mounted on the base plate 1 at a constant interval, and a first electromagnetic mounting frame 3 opposite to the second mounting frame 3. A solenoid 4 and a second electromagnetic solenoid 5 are installed, and an operating shaft 6 is connected to the first electromagnetic solenoid 4 and the second electromagnetic solenoid 5.
Suction/shaft portions 7 provided at both ends of the γ are slidably fitted into each other, and by alternately energizing the first electromagnetic solenoid 4 and the second electromagnetic solenoid 5, the actuating shaft 6 is alternately attracted to the left and right. 1 mounting frame 2
In addition, a first contact 10 and a second contact 11 are provided on the upper surface of the second mounting frame 3 with suppressing terminals 8 and 9 facing each other.

On both sides of the operating shaft 60, bearing plates 12 and 12, whose lower ends are fixed on the base plate 1, are provided oppositely, and rotating shafts 13 and 14 are rotated at the same position near both ends of the bearing plates 12 and 12, respectively. The base 16 of the right arm frame 15 is fixed to the rotation shaft 13, and the base 18 of the left arm frame 17 is fixed to the rotation shaft 14. The shafts 19 and 20 are rotatably mounted on each end of the shaft 19, and the base end 22 of the right interlocking plate 210 is attached to the middle of the shaft 19. The front ends of the right interlocking plate 21 and the left interlocking plate 23 are connected to each other freely by the connecting shaft 24 with their sides overlapped, and the base end 25 of the left interlocking plate 230 is connected to the shaft 2.
It is installed in the middle of 0.

Further, the centers of the lower sides 27 of the isosceles triangular connecting actuating plates 26, 26 are rotatably pivoted on the extensions of both ends of the connecting shaft 240, and the lower sides 27 of the connecting actuating plates 26, 26 are attached to both ends of the connecting actuating plates 26, 26. The formed right engagement recess notch 28 (drawing cloth) and left engaging recess notch 29 (drawing cloth) are placed above the shaft 19 between the right arm frame 15 and the right interlocking plate 21 and the left arm frame 17, respectively.
A slightly vertically elongated through hole 31 that faces above the shaft 20 between the left interlocking plate 23 and the top 30 of the interlocking actuating plates 26 and 26 is provided to protrude horizontally inside the midpoint of the actuating shaft 6. The engaged shaft portions 32, 32 are engaged with each other.

Further, switching rods 34, 34 are arranged inside the bearing plates 12, 120 and are integrally connected in parallel with each other by a joint support member 33, and bearing recesses 34', 34 are provided on the lower side of the switching rods 34, 34.
'A shaft part 3 protruding from the inner side of the lower center of the bearing plates 12, 120
5 and 35 are fitted together so that they can rotate freely, and the switching rods 34 and 34 can be freely tilted left and right about the shaft portion 35.35, and the switching rod 3
The first contacts 10 are alternately connected to each other by the suppressing head 36 provided at the upper end of the
The pressing terminal 8 of the second contact 11 and the pressing terminal 9 of the second contact 11 can be operated by pressing, and the lower ends of the switching rods 34, 34 are rotatably attached to the shaft end of the connecting shaft 24. be.

As shown in FIG. 4, the switching rod 34 is tilted to the right (as shown in the drawing) and the pressing head 36 of the switching rod 34 presses the pressing terminal 8 of the first contact 10. The arm frame 15 and the right interlocking plate 21 are in a horizontal state, and the rotation axis 13, the axis 19,
The axes of the connecting shafts 24 are aligned on a line, and the engaging shaft portion 32 of the actuating shaft 6 that engages the through hole 31 of the top portion 30 of the connecting actuating plate 26 is located to the left of the shaft portion 35, which is the center of tilting of the switching rod 34. Located in the direction of
In addition, the left engagement concave notch 29 of the linking operation plate 26 is connected to the left arm frame 11.
The switching rod 3 engages with the shaft 20 connecting the left interlocking plate 23 and the left interlocking plate 23.
4 is designed to be latched in a state in which the pressing terminal 8 of the first contact 10 is pressed by the pressing head 36.

Moreover, contrary to the above, the switching rod 34 is tilted to the left (as shown in FIG. 5), and the pressing head 36 of the switching rod 34 is moved to the second
When the press terminal 9 of the contact 11 is pressed,
The left arm frame 11 and the left interlocking plate 23 are in a horizontal state, and the rotation axis 1
4. The axes of the shaft 20 and the connecting shaft 24 are aligned on a line, and the engaging shaft portion 32 of the actuating shaft 6 that engages the through hole 31 of the top portion 30 of the connecting actuating plate 26 is opposite to the inclination of the switching rod 34. The switching rod 34 is located on the right side of the shaft portion 35, and the right engaging recessed portion 28 of the linking operation plate 26 engages with the shaft 19 that connects the right arm frame 15 and the right linking plate 21, and the switching rod 34 is moved to the second position. The pressing terminal 9 of the contact 11 is latched and held in a pressed state by the pressing head 36.

Next, to describe the operation of the present invention, the bearing plate 12 provided on the base plate 1 between the first electromagnetic solenoid 4 and the second electromagnetic solenoid 5, which alternately attract and operate the operating shaft 6, is located near both ends of the bearing plate 12. At the same position, the base 16 of the right arm frame 15 and the base 18 of the left arm frame 11 are freely rotatably mounted via rotation shafts 13 and 14, respectively, and the right interlocking plate 210 is attached to one end of the right arm frame 15 with a shaft 19. The end 22 is rotatably attached to one end of the left arm frame 17, and the base end 25 of the left interlocking plate 23 is rotatably attached to one end of the left arm frame 17 by a shaft 20, and the right interlocking plate 21 and the left interlocking plate 23 are The tips of the two plates are overlapped with each other and are freely rotationally connected to each other by a connecting shaft 24, and the center of the lower side 27 of the isosceles triangular connecting actuating plate 26 is pivoted freely on the extension of the connecting shaft 24. so that the right engaging concave notch 28 and the left engaging concave notch 29 at both ends of the lower side of the connecting operation plate 26 face above the shafts 19 and 20, respectively, and the top 30 of the connecting operation plate 260 An engaging shaft portion 32 protruding horizontally from the midpoint of the operating shaft 6 is engaged with a slightly elongated through hole 31 formed in the hole 31, and a shaft portion 35 protruding from the inner side of the lower part of the bearing plate 12 is engaged. By engaging the bearing recess 34' provided on the lower side surface of the switching rod 34, the switching rod 34 is mounted so as to be freely tiltable, and the shaft end of the connecting shaft 24 is freely rotatably attached to the lower end of the switching rod 34. contacts 1 provided on the ground surfaces of the mounting frames 2 and 3 of the electromagnetic solenoids 4 and 5 at the upper end of the switching rod 34.
Since the pressing head 36 is provided to alternately suppress the pressing terminals 8 and 9 of the contact 10, the switching rod 34 tilts to the right, the pressing head 36 presses the pressing terminal 8 of the contact 10, and the contact 10 is closed. When the electromagnetic solenoid 4 is excited in the closed state shown in FIG. 1, the operating shaft 6 is attracted toward the electromagnetic solenoid 4 on the right side as shown by the phantom arrow in FIG.

The connecting actuation plate 26 that engages the through hole 31 of the top portion 30 with the engaging shaft portion 32 of the actuating shaft 6 is connected to the top portion 30 with the connecting shaft 24 as the center.
begins to rotate toward the right electromagnetic solenoid 4, and at the same time, the right engagement recess 28 on the lower side presses downward the shaft 19 that connects the right arm frame 15 and the right interlocking plate 21, and the shaft 19 rotates downward about a rotation shaft 13 to which the right arm frame 15 is attached.

As the shaft 19 is rotated downward as described above, the connecting shaft 24 attached to the right interlocking plate 21 that is connected to the shaft 19 rotates around the shaft portion 35 that pivotally supports the switching rod 34. The lower part of the switching rod 34 that connects the shaft end of the connecting shaft 24 to the lower end is rotated toward the right interlocking plate 21 on the right side about the shaft portion 35, and the switching rod 34 is rotated toward the solenoid 4. The upper part of the is tilted to the left, and the state changes from the intermediate operating state shown in FIG. 6 to the state shown in FIG.
is pressed by the pressing head 36 of the switching rod 34 to close the contact 11, and in this state, the left interlocking plate 23 connected to the connecting shaft 24 whose shaft end is attached to the lower end of the switching rod 34 becomes horizontal, A shaft 20 that connects the left interlocking plate 23 and the left arm frame 17
and a shaft portion 35 that pivotally supports the switching rod 34, in which the axes of the rotating shaft 14, which pivots the base 18 of the left arm frame 17, and the connecting shaft 24 are aligned, and the switching rod 34 is tilted to the left. The engaging shaft portion 32 of the actuating shaft 6 connected to the top 30 of the connecting actuation plate 26 and the connecting shaft 24 are located on the right side of the connecting actuating plate 26, and the right engaging recessed portion 28 of the connecting actuating plate 26 is located on the lowered shaft 19. The switching rod 34 is reliably launched while remaining in the engaged state, and even if an object touches the switching rod 34 or the switching rod 34 is pushed by hand, it is stopped and held without the risk of swinging.

In the above case, the right electromagnetic solenoid 4 is energized from the state shown in FIG. 1, the switching rod 34 is tilted to the left, the right contact 10 is opened, and the left contact 11 is closed, as shown in FIG. We have described the operating state in which the right contact 10 in FIGS. 1 and 4 is closed and the left contact 11 is opened again as shown in FIG. In this state, it is sufficient to energize the left electromagnetic solenoid 5, and vice versa, the right interlocking plate 21, the left interlocking plate 23, the right arm frame 15, and the left arm frame 17 is operated in a related manner, and the state shown in FIG. 5 is converted to the state shown in FIGS. The contact 10 closes and the left contact 11 opens, and with the switching rod 34 tilted to the right, the right interlocking plate 21 becomes horizontal, and the switching rod 34
The axes of the connecting shaft 24, the shaft 19, and the rotating shaft 13, on which the right arm frame 15 is mounted, are aligned on a line, and are connected to the left side of the shaft portion 35 of the switching rod 34, which tilts to the right. The engagement shaft 35 and the linking shaft 24 of the operating shaft 6 linked to the operating plate 26 are located, and the lowered shaft 2 linking the left arm frame 17 and the left linking plate 23 is located.
0, the left engaging concave notch 29 of the linking operation plate 26 engages to latch and hold the switching rod 34.

In short, the present invention provides a bearing plate 12 on the base plate 1 between the electromagnetic solenoids 4 and 5 that alternately attract and operate the operating shaft 6,
The right arm frame 15 and the left arm frame 1γ are located near both ends of the bearing plate 120.
are attached freely to rotate, and the right arm frame 15 and the left arm frame 1
A right interlocking plate 21 and a left interlocking plate 23 are rotatably attached to one end of each of the right interlocking plates 21 and left interlocking plate 23, and the tips of the right interlocking plate 21 and the left interlocking plate 23 are overlapped with each other, and are connected to each other freely through a linking shaft 24. On the extension of the connecting shaft 24, there is provided an isosceles triangular connecting actuating plate 2.
The center of the lower side portion 27 of the connecting plate 26 is pivoted to rotate freely, and the right engaging recessed portion 28 and the left engaging recessed portion 29 at both ends of the lower side of the linking operation plate 26 are connected to the shafts 19 and 20, respectively. The top portion 30 of the connecting actuation plate 260 is engaged with the engagement shaft portion 32 protruding from the actuation shaft 6, while the bearing plate 12
The bearing recess 3 on the lower side surface is attached to the shaft portion 35 protruding inside the lower part of the
The shaft end of the connecting shaft 24 is connected to the lower end of the switching rod 34 which can be freely tilted by engaging the switching rod 4', and the upper end of the switching rod 34 is provided in the mounting frame 2.3 for the electromagnetic solenoids 4 and 5. Contact T
Suppressing head 3 that alternately presses against pressing terminals 8 and 9 of O and 11
6, the press terminals 8, 8 of the left and right contacts 10, 11 are provided.
The switching mechanism of the switching rod 34 that alternately presses the contacts 10 and 11 to open and close the contacts 10 and 11 can be compactly constructed in the limited narrow space between the electromagnetic solenoids 4 and 5, and can be easily constructed using fewer members. As already clarified, when the switching is completed, the right interlocking plate 21 or the left interlocking plate 23 on the side of the switching rod 34 that is tilted becomes horizontal, and the connecting shaft 24, which connects the shaft end to the lower end of the switching rod 34, and the shaft 19 rotate. The axis of the moving shaft 13 or the axis of the connecting shaft 24, the shaft 20, and the rotating shaft 14 are aligned on a line, and an engagement shaft engages the connecting actuation plate 26 in the opposite direction to the inclined switching rod 34. The section 32 and the connecting shaft 24 are the switching rod 34
The switching rod 34 can be latched and held accurately without the risk of swinging excessively.
Therefore, the structure can be easily constructed without providing a special latch mechanism using oysters or the like.

[Brief explanation of the drawing]

The drawings show an example of the implementation of the present invention, and FIG. 1 is a partially cutaway front view, FIG. 2 is a side view taken along line A-A, and FIG.
Fig. 3 is a partially cutaway perspective view of the main part, Figs. 4 and 5 are front views of the main part showing the latched state when switching from side to side is completed, and Fig. 6 shows an intermediate state during the switching operation process. It is a front view of the important part shown. 1...Base plate, 2...Mounting frame, 3...
...Mounting frame, 4...Electromagnetic solenoid, 5.
...Electromagnetic solenoid, 6...Operating axis, 8
...Press terminal, 9...Press terminal, 10.
...Contact, 11...Contact, 12...
... Bearing plate, 13 ... Rotating shaft, 14 ... Rotating shaft, 15 ... Right arm frame, 16 ... Base, 17 ... ... Left arm frame, 18 ... Base, 19 ... Axis, 20 ... Axis, 21 ...
...Right interlocking plate, 22... Base end, 23...
...Left interlocking plate, 24...Connection shaft, 25...
... Proximal end, 26 ... Interlocking operation plate, 27 ...
...Lower side part, 28...Right engagement recess notch, 29.
...Left engagement recess notch, 30...Top, 31
...Through hole, 32...Engagement shaft portion, 34.
...Switching rod, 34'...Bearing recess, 35
...Shaft part, 36...Press head.

Claims (1)

[Claims] 1. A bearing plate 12 is provided on the base plate 1 between the opposing electromagnetic solenoids 4 and 5 that alternately attract and operate the operating shaft 6, and is located on the side of the operating shaft 6. Rotation axis 1
3.14, the base 16 of the right arm frame 15 and the base 18 of the left arm frame 11 are rotatably attached, respectively, and the base end 22 of the right interlocking plate 210 is rotated by the shaft 19 to one end of the right arm frame 15. A shaft 2 is attached to one end of the left arm frame 11 for free movement.
0, the base end 25 of the left interlocking plate 230 is rotatably attached to each other, and the tips of the right interlocking plate 21 and the left interlocking plate 23 are overlapped with each other and are connected freely to each other by the connecting shaft 24,
The center of the lower side 21 of an isosceles triangular linking operation plate 26 is rotatably pivoted to the linking shaft 24.
A right engagement recess 28 and a left engagement recess 29 provided at both ends of the lower side are arranged so as to be able to alternately approach and separate above the shafts 19 and 20, and are formed on the top 30 of the linkage plate 260. The engagement shaft portion 32 protruding from the middle side of the operating shaft 6 is engaged with the vertically elongated through hole 31, and the lower portion of the switching rod 34 is engaged with the shaft portion 35 protruding from the inside of the lower part of the bearing plate 72. The switching rod 34 is mounted on the tilting upper mountain by engaging the bearing recess 34' provided on the side surface, and the shaft end of the connecting shaft 24 is rotatably attached to the lower end of the switching rod 34, and the switching rod 34 is attached to the lower end of the switching rod 34. A switching electromagnetic switch is provided at the upper end of 34 with a suppressing head 26 that alternately suppresses the press terminals 8 and 9 of the contacts 10 and 11 arranged on the upper surfaces of the mounting frames 2 and 3 of the electromagnetic solenoids 4 and 5, respectively. .