KR20010014449A - Switching device - Google Patents

Abstract

PURPOSE: A switch gear is provided to reduce the space between a stationary board and a movable board by putting a movable board to a stationary board, and a equipping place can be minimized. CONSTITUTION: A lower shutter(25b) is joined with a supporting arm(27b) mounted pivotally on a stationary board(21). A driving plate(29) with a horizontal part(29a) and an upward slanted part(29b) is provided at the movable board(22). A roller(33) rolling along the driving plate(29) is mounted pivotally on an operation link(30). The operation link(30) is joined to the supporting arm(27b) with a joining plate(32) in between. The upper shutter(25a) is joined to the supporting arm(27a) pivotally mounted on the stationary board(21). A driving board(34) is mounted on the movable board(22). The driving board(34) has a horizontal part(34a) opposite to the horizontal part(29a) with the movable board(22) in between, and a downward slanted part(34a) slanted symmetrically to the upward slanted part(29b). A roller(37) is mounted on the movable board(22). A roller(37) rotating along the driving board(34) is mounted pivotally on an operation link(35). The operation link(35) is joined to the supporting arm(27a) with a joining plate(36) in between.

Description

Switchgear {SWITCHING DEVICE}

TECHNICAL FIELD The present invention relates to an opening and closing mechanism of a shutter for shielding an opening and closing device, particularly a fixed half side terminal plate of an opening and closing device having a movable panel and a fixed panel.

15 and 16 are side views showing the structure of a conventional switchgear, FIG. 15 shows an open state, and FIG. 16 shows a closed state. 15 and 16, reference numeral 1 denotes a fixed plate, 2 denotes a movable plate movably installed on the fixed plate 1, 3 denotes a terminal plate provided on the fixed plate 1, and 4 denotes a movable plate 2. It is a terminal, and the terminal board 3 and the terminal 4 comprise an electrical connection part. Reference numeral 5 is a guide attached to the fixed plate 1, 6a and 6b are connected to the upper shutter and the lower shutter movably installed on the guide 5, 7 is the connection between the upper shutter 6a and the lower shutter 6b 8 is a drive plate provided in the movable panel 2, and has the horizontal part 8a and the inclined part 8b. 9 is an operation link, one side of which is movably attached to the lower shutter 6b, and the other side of which is rotatably attached to the support shaft 10. Reference numeral 11 denotes a roller rotatably attached to the operation link 9, which rotates along the drive plate 8. 12 is a spring, one of which is supported by the guide 5 and the other of which is supported by the operation link 9.

Next, the operation will be described. When the movable panel 2 is electrically connected to the fixed panel 1, the roller 11 is pushed in the direction of the fixed panel 1 so that the roller 11 is pressed. Is pressed by the inclined portion 8b of the drive plate 8, and the operation link 9 is rotated clockwise with the support shaft 10 as the support point. When the movable plate 2 is further pressed in the direction of the fixed plate 1, the roller 11 is rotated downward of the horizontal portion 8a, and the operation link 9 is moved. At this time, the lower shutter 6b is moved downward along the guide 5 against the tensile force of the spring 12. For this reason, with the connecting plate 7 connected to the lower shutter 6b, the upper shutter 6a is moved downward along the guide 5, and the terminal plate 3 is exposed. By pushing the movable panel 2 further in this state, the terminal 4 of the movable panel 2 is fitted into the terminal plate 3 of the fixed panel 1, and is electrically connected.

At this time, when the circuit is electrically shorted, the operation is reversed to that described above.

Since the conventional switchgear is comprised as mentioned above, when the circuit is electrically connected (closed) or short-circuited (opened), since the shutters 6a and 6b move up and down, the movable panel 2 and the Since the distance between the shutters 6a and 6b is required, the movable plate 2 is moved to the fixed plate 1 side beyond the distance D1 (shown in FIG. 16) between the fixed plate 1 and the movable plate 2. There was a problem that it was impossible to push. For this reason, even if it is going to reduce the size of an installation space from the viewpoint of downsizing the installation space, the realization of it was difficult.

The present invention is given to solve the above problems, and an object of the present invention is to obtain an opening and closing device capable of reducing the distance between the fixed plate and the movable plate.

1 is a front view showing the configuration of a switchgear according to a first embodiment of the present invention, showing a short circuit state before the movable panel is pushed into the fixed panel.

FIG. 2 is a right side view of FIG. 1 showing the opening and closing mechanism of the lower shutter.

Fig. 3 is a left side view of Fig. 1 showing the opening and closing mechanism of the upper shutter.

Fig. 4 is a front view showing the configuration of the opening and closing device according to the first embodiment of the present invention, and shows the electrically connected state after the movable panel is pushed into the fixed panel.

FIG. 5 is a right side view of FIG. 4, illustrating the opening and closing mechanism of the lower shutter.

Fig. 6 is a left side view of Fig. 4 showing the opening and closing mechanism of the upper shutter.

Fig. 7 is a front view showing the structure of the switching device according to the second embodiment of the present invention, showing a short-circuit state before pushing the movable panel to the fixed panel.

FIG. 8 is a right side view of FIG. 7 showing the opening and closing mechanism of the lower shutter.

Fig. 9 is a left side view of Fig. 7 showing the opening and closing mechanism of the upper shutter.

Fig. 10 is a front view showing the configuration of the opening and closing apparatus according to the second embodiment of the present invention, and shows the electrically connected state after the movable panel is pushed into the fixed panel.

FIG. 11 is a right side view of FIG. 10, illustrating the opening and closing mechanism of the lower shutter.

FIG. 12 is a left side view of FIG. 10, illustrating the opening and closing mechanism of the upper shutter.

13 is a perspective view illustrating main parts of FIG. 7.

14 is an explanatory diagram of the main parts of FIG. 7.

Fig. 15 is a side view showing the structure of a conventional switchgear, showing an open state.

Fig. 16 is a side view showing the structure of a conventional switchgear, showing a closed state.

Explanation of symbols on the main parts of the drawings

21: fixed panel 22: movable panel

23, 24: connection part (23: terminal board, 24: terminal)

25a, 25b: Shutters 27a, 27b, 41a, 41b: Support Arm

29, 34: drive plate 29a, 34a: horizontal portion

29b, 34b: inclined portion 30, 35: operation link

32, 36: connecting plate 33, 37: roller

42a, 42b: shutter support bracket

In the opening and closing apparatus according to the present invention, a first shutter which electrically connects or shorts the first connecting portion and the second connecting portion by pushing or pulling the movable panel with respect to the fixed plate, and simultaneously opens or shields the first connecting portion; When the second shutters that open or shield the second connection portions are moved in opposite directions to each other, and when each of the first shutter and the second shutters opens each connection portion, the first shutter is disposed in a space above the first connection portion, It is comprised so that a 2nd shutter may be arrange | positioned in the space below the 2nd connection part.

In addition, the opening and closing device includes a fixed panel, a movable panel movably mounted to the fixed panel, first and second connecting portions which are electrically connected or short-circuited by pushing or pulling the movable panel with respect to the fixed panel, A first shutter connected to the first support arm rotatably attached to the fixed plate between the movable panels, the first shutter being opened or shielded at the same time and disposed in a space below the first connecting portion when the first connecting portion is opened; And a first drive member provided on the movable plate, the first drive member having a first horizontal portion and a first inclined portion, and one side connected to the first connecting member rotatably attached to the first support arm, and the other side fixed to the fixed plate. A first operating link rotatably attached, a first roller rotatably attached to the first operating link and rotating along the first drive member, and rotating between the stationary plate and the movable plate. A second shutter disposed in a space above the second connecting portion when the second connecting portion is opened; A second driving member having a second horizontal portion sandwiched between the first horizontal portion of the first driving member and a second inclined portion symmetrically disposed in an inclined direction of the first inclined portion of the first driving member; A second operation link connected to a second connecting member rotatably attached to the second support arm, the second operation link rotatably attached to the fixing plate on the other side, and the second driving member rotatably attached to the second operating link; It is provided with a second roller that rotates along.

Furthermore, the first shutter support member is connected between the first support arm and the first shutter, and the second shutter support member is connected between the second support arm and the second shutter.

(Example)

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Example 1:

1 is a front view showing the configuration of a switchgear according to a first embodiment of the present invention, showing a short circuit state before the movable panel is pushed into the fixed panel. FIG. 2 is a right side view of FIG. 1, illustrating the opening and closing mechanism of the lower shutter, and FIG. 3 is a left side view of FIG. 1, illustrating the opening and closing mechanism of the upper shutter. Fig. 4 is a front view showing the structure of the opening and closing device according to the first embodiment of the present invention, which shows a state of being electrically connected after the movable panel is pushed into the fixed panel. FIG. 5 is a right side view of FIG. 4, illustrating the opening and closing mechanism of the lower shutter. FIG. 6 is a left side view of FIG. 4, illustrating the opening and closing mechanism of the upper shutter. One upper shutter and one lower shutter are arranged, and the opening and closing mechanism of the upper shutter is provided on the left side of the apparatus, and the opening and closing mechanism of the lower shutter is provided independently on the right side of the apparatus.

1 to 6, reference numeral 21 denotes a fixed plate, 22 a movable plate movably installed on the fixed plate 21, 23 a terminal plate provided on the fixed plate 21, and 24 on a movable plate 22. It is a terminal and the terminal board 23 and the terminal 24 comprise an electrical connection part. 25b is a lower shutter, which is connected to one support arm 27b on the left side of the device and to two support arms 27b on the right side of the device, which support arms 27 use a support shaft 26 It is attached to the fixed plate 21 to be movable. 28 is a spring, one side of which is supported by the fixed plate 21 and the other of which is supported by the upper support arm 27b on the right side of the apparatus.

29 is a drive plate provided in the movable panel 22, and has a horizontal part 29a and the inclined part 29b inclined upward. 30 is an operation link, one side of which is attached to the connecting plate 32 which will be described later, and the other side of which is rotatably attached to the fixed plate 21 via the support shaft 31. The connecting plate 32 is for the lower shutter 25b, one side of which is connected to the support arm 27b and the other to the operation link 30 on the right side of the apparatus. 33 is a roller rotatably attached to the operation link 30 and rotates along the drive plate 29.

At this time, the components 25b, 26, 27b, 28, 29, 30, 31, 32, 33 constitute the opening and closing mechanism of the lower shutter.

25a is an upper shutter, which is connected to one support arm 27a on the right side of the device and two support arms 27a on the left side of the device, which support arms 27a use a support shaft 26 It is movably attached to the fixed plate 21. 34 is a driving plate provided on the movable plate 22 with the movable plate 22 interposed therebetween, and the driving plate 34 is disposed to face the horizontal portion 29a. 34a) and the inclination part 34b which inclined downward so that it may become symmetrical with the inclination direction of the inclination part 29b. 35 is an operation link, one of which is attached to the connecting plate 36 for the upper shutter 25a, which will be described later, and the other of which is rotatably attached to the fixed plate 21 using the support shaft 31. The connecting plate 36 is for the upper shutter 25a, one of which is connected to the lower support arm 27a, and the other of which is connected to the operation link 35 on the lower side of the apparatus. 37 is a roller rotatably attached to the operation link 35, which rotates along the drive plate 34.

At this time, 25a, 26, 27a, 31, 34, 35, 36 and 37 constitute the opening and closing mechanism of the upper shutter.

Next, the operation of the lower shutter 25b will be described. When the movable panel 22 is electrically connected to the fixed panel 21, the movable panel 22 is pushed in the direction of the fixed panel 21, so that the rollers are inclined to the inclined portion 29b of the driving plate 29. (33) leans. When the movable plate 22 is further pushed in, the roller 33 is pressed downward along the inclined portion 29b of the drive plate 29, so that the operation link 30 is clockwise with the support shaft 31 as a supporting point. Is rotated. For this reason, since the support arm 27b rotates counterclockwise about the support shaft 26 using the connecting plate 32, the shutter 25b is pulled downward and the direction of the fixed plate 21 is carried out. Retreat to

As the movable plate 22 is pushed further in the direction of the fixed plate 21, the roller 33 rotates the lower side of the horizontal portion 29a of the drive plate 29, and the support arm 27b further moves. It is rotated counterclockwise and the lower shutter 25b can be made closer to the fixed board 21 side in the direction which pushes the movable board 22. As shown in FIG. In addition, since the lower shutter 25b is pulled downward, the lower terminal plate 23 is opened (shielded when electrically shorting the movable panel 22 and the fixed panel 21). As the movable panel 22 is pushed further in this state, as shown in FIG. 5, the lower terminal 24 of the movable panel 22 is inserted into the terminal plate 23 under the fixed panel 21. The lower shutter 25b is disposed in the space below the connecting portion.

Next, the operation of the upper shutter 25a when the movable panel 22 is electrically connected to the fixed panel 21 will be described. The roller 37 is leaned against the inclined portion 34b of the drive plate 34 by the movable plate 22 being pushed in the direction of the fixed plate 21. When the movable plate 22 is further pushed in, the roller 37 is pushed upward along the inclined portion 34b of the drive plate 34 so that the operation link 35 is clockwise with the support shaft 31 as a support point. Is rotated. For this reason, since the support arm 27a is rotated counterclockwise about the support shaft 26 by the connecting plate 36, the shutter 25a is pulled upwards and in the direction of the fixed plate 21. Retreat

As the movable plate 22 is further pushed in the direction of the fixed plate 21, the roller 37 rotates the upper side of the horizontal portion 34a of the drive plate 34, and the support arm 27a is further halves. It is rotated clockwise and the upper shutter 25a can be made closer to the fixed board 21 side in the direction which pushed the movable board 22. As shown in FIG. In addition, since the upper shutter 25a is pulled upward, the upper terminal plate 23 is opened (shielded when the short circuit of the movable panel 22 and the fixed panel 21 is electrically shorted). As the movable plate 22 is pushed further in this state, as shown in FIG. 6, the terminal 24 on the upper side of the movable plate 22 is fitted to the terminal plate 23 on the upper side of the fixing plate 21. It is inserted and electrically connected, and the upper shutter 25a is arrange | positioned in the space above this connection part.

At this time, in the case of electrically shorting the movable panel 22 and the fixed panel 21, the operation is the reverse of the above.

According to the opening and closing apparatus of the first embodiment configured as described above, when the upper shutter 25a and the lower shutter 25b move in opposite directions to each other and the shutters 25a and 25b open the respective connecting portions, the shutters 25a and 25b Is configured to be disposed in a space above or below each connected portion electrically connected to each other, so that the movable panel 22 can be pushed to the stationary panel 21 side more than the conventional one. For this reason, the space | interval of the fixed board 21 and the movable board 22 can be reduced, the installation space of a switchgear can be reduced, and the space inside a building can be utilized effectively.

At this time, the space | interval L1 (refer FIG. 16) of the movable panel 2 and the terminal 4 determined from the minimum distance D1 (refer FIG. 16) of the conventional fixed panel 1 and the movable panel 2 of this invention It can be reduced to the distance L2 (see FIG. 5) between the movable panel 22 and the terminal 4 determined from the minimum distance D2 (see FIG. 5) between the fixed panel 21 and the movable panel 22 according to the first embodiment. As a result, the material of the related parts constituting the opening and closing mechanism of the upper and lower shutters can be saved. For this reason, a low cost switchgear can be enabled.

Example 2:

Fig. 7 is a front view showing the structure of the switching device according to the second embodiment of the present invention, showing a short-circuit state before pushing the movable panel to the fixed panel. FIG. 8 is a right side view of FIG. 7, illustrating the opening and closing mechanism of the lower shutter, and FIG. 9 is a left side view of FIG. 7, illustrating the opening and closing mechanism of the upper shutter. Fig. 10 is a front view showing the configuration of the switchgear according to the second embodiment of the present invention, and shows the electrically connected state after the movable panel is pushed into the fixed panel. FIG. 11 is a right side view of FIG. 10, illustrating the opening and closing mechanism of the lower shutter. FIG. 12 is a left side view of FIG. 10, illustrating the opening and closing mechanism of the upper shutter. One upper shutter and one lower shutter are arranged, and the opening and closing mechanisms of the respective shutters are provided independently on the left and right sides of the apparatus. 13 is a perspective view of the main portion of FIG.

At this time, among the reference numerals shown in Figs. 7 to 13, the same as those shown in Figs. 1 to 6 represent the same or corresponding parts, and the description thereof is omitted.

While the second embodiment differs from the configuration of the first embodiment, in the first embodiment, the shutters 25a and 25b are directly connected to the support arms 27a and 27b, respectively. In the second embodiment, the shutter 25a and the support arm (s) The shutter support brackets 42a and 42b which are mentioned later are provided between 41) and the shutter 25b and support arm (s) 41b, respectively.

7 to 11, reference numeral 41a denotes a support arm for the upper shutter 25a, in which two support arms 41a are installed on the left side of the apparatus, while one support arm 41a is on the right side of the apparatus. Is installed on. One side of the support arm 41a is rotatably attached to the fixed plate 21 via the support shaft 26, and the other side thereof is connected to the shutter support bracket 42a described later. One side of the shutter support bracket 42a is connected to the support arm (s) 41a, and the other is fixed to the upper shutter 25a.

At this time, the components 25a, 26, 31, 34, 35, 36, 37, 41a, and 42a constitute the opening and closing mechanism of the upper shutter.

41b is a support arm for the lower shutter 25b. Two support arms 41b are provided on the right side of the apparatus, while one support arm 41b is provided on the left side of the apparatus. One side of this support arm 41b is rotatably attached to the fixed plate 21 via the support shaft 26, and the other side is connected to the shutter support bracket 42b described later. One side of the shutter support bracket 42b is connected to the support arm (s) 41b, and the other is fixed to the lower shutter 25b.

At this time, the components 25b, 26, 28, 29, 30, 31, 32, 33, 41b and 42b constitute the opening and closing mechanism of the lower shutter.

Next, the operation of the lower shutter 25b will be described. When the movable panel 22 is electrically connected to the fixed panel 21, the movable panel 22 is pushed in the direction of the fixed panel 21, so that the rollers are inclined to the inclined portion 29b of the drive plate 29. (33) leans. When the movable plate 22 is further pushed in, the roller 33 is pressed downward along the inclined portion 29b of the drive plate 29, so that the operation link 30 is clockwise with the support shaft 31 as a supporting point. Is rotated. For this reason, since the support arm 41b rotates counterclockwise about the support shaft 26 via the connecting plate 32, the shutter 25b along with the shutter support bracket 42b is pulled downward. It retracts in the direction of the fixed plate 21.

As the movable plate 22 is pushed further in the direction of the fixed plate 21, the roller 33 rotates below the horizontal portion 29a of the drive plate 29, and the support arm 41b is further halves. It is rotated clockwise, and the lower shutter 25b can be made closer to the stationary board 21 side with the shutter support bracket 42b in the direction which pushes the movable board 22. As shown in FIG. In addition, since the lower shutter 25b is pulled downward, the lower terminal plate 23 is opened (shielded when electrically shorting the movable panel 22 and the fixed panel 21). As the movable panel 22 is pushed further in this state, as shown in FIG. 11, the terminal 24 at the lower part of the movable panel 22 is fitted into the terminal plate 23 at the lower part of the fixing panel 21. It is inserted and electrically connected, and the lower shutter 25b is arrange | positioned in the space below this connection part.

Next, the operation of the upper shutter 25a when the movable panel 22 is electrically connected to the fixed panel 21 will be described. The roller 33 leans against the inclined portion 34b of the drive plate 34 by the movable plate 22 being pushed in the direction of the fixed plate 21. When the movable plate 22 is further pushed in, the roller 33 is pushed upward along the inclined portion 34b of the drive plate 34 so that the operation link 35 is clockwise with the support shaft 31 as a supporting point. Is rotated. For this reason, since the support arm 41a rotates counterclockwise about the support shaft 26 by the connecting plate 36, the shutter 25a is pulled upward together with the shutter support bracket 42a. It retracts in the direction of the fixed plate 21.

As the movable plate 22 is further pushed in the direction of the fixed plate 21, the roller 33 rotates above the horizontal portion 34a of the drive plate 34, and the support arm 41a is further halves. By rotating clockwise, the upper shutter 25a can be brought closer to the fixed platen 21 together with the shutter support bracket 42a in the direction of pushing the movable platen 22. In addition, since the upper shutter 25a is pulled upward, the upper terminal plate 23 is opened (shielded when the short circuit of the movable panel 22 and the fixed panel 21 is electrically shorted). As the movable panel 22 is pushed further in this state, as shown in FIG. 12, the terminal 24 on the upper side of the movable panel 22 is fitted into the terminal plate 23 on the upper side of the fixing panel 21. It is inserted and electrically connected, and the lower shutter 25b is arrange | positioned in the space below this connection part.

In addition, in the case of electrically shorting the movable panel 22 and the fixed panel 21, the operation is the reverse of the above.

Next, the operation in the case of using the shutter support bracket 41b will be described based on FIG. 14. In FIG. 14, the broken line shows the movement trace of the shutter support bracket 42b and the lower shutter 25b, and the angle a has shown the operation angle of the support arm 42b at this time. On the other hand, the dashed-dotted line shows the movement trajectory of the lower shutter 25b when the support arm 27b is attached and opened and closed directly on the lower shutter 25b without using the shutter support bracket 42b as in the first embodiment. Indicates. Moreover, angle b has shown the operation angle of the support arm 27b at this time.

Further, reference numeral c denotes the center of rotation of the support arm 41b, and its position is the highest with the back plate 43 in a range where the support arm 41b does not interfere with the back plate 43 of the fixed plate 21. At the time of opening and closing the upper shutter 25b, the corner of the lower shutter 25b indicated by point A in FIG. 14 and the corner of the insulator 44 of the fixing plate 21 indicated by point B in the same drawing are In the range which does not interfere with opening and closing of the lower shutter 25b, it is determined from the conditions which become the position of the uppermost (lowest side in the case of the upper shutter 25a).

As described above, the description has been made based on the lower shutter, but the operation in the case of the upper shutter is the same as that described above, except that the operation is in the upper direction.

As shown in FIG. 14, by using the shutter support bracket 42b, the operation angle of the support arm 41b can be reduced. For this reason, the operation angle of the operation link 30 also becomes small, and since the operation link 30 is operated, it becomes possible to shorten the distance which the movable panel 22 moves.

In addition, by using the shutter support bracket 42b, the rotation radius of the support arm 41b becomes large. For this reason, since it can suppress that the lower shutter 25b moves to the movable panel 22 side only by the distance D of FIG. 14, the movable panel 22 is fixed to the opening-and-closing operation start position of the lower shutter 25b. It becomes possible to move in the direction pushed toward the half 21 side.

At this time, since the position of the rotation center c of the support arm 41b is located as high as possible according to the conditions mentioned above, the movement distance D of the lower shutter 25b to the movable panel 22 side can be made small.

In addition, in the open position of the lower shutter 25b, when the shutter support bracket 42b is not used, the support arm 27b is positioned almost vertically. On the other hand, when the shutter support bracket 42b is used, the tip of the support arm 41b moves to the movable plate 22 side, so that the link 32 for driving the support arm 41b is connected to the support arm 41b. The area that can be disposed below increases, facilitating installation. This makes it possible to further reduce the size of the fixed plate 21 in the direction in which the movable plate 22 is pushed in, whereby a small opening and closing device can be obtained.

For this reason, it becomes possible to reduce the material cost of the fixed board which comprises a circuit breaker, and also can reduce its installation area by miniaturizing a circuit breaker, and when it is installed in a building etc., for example, the space which can be used effectively You can widen it.

Since this invention is comprised as mentioned above, it provides the effect as shown below.

A first shutter electrically opening or shielding the first connection portion and the second connection portion by pushing or pulling the movable plate with respect to the fixed plate, and opening or shielding the first shutter and the second connection portion to open or shield the first connection portion; When the two shutters are moved in opposite directions to each other, and each of the first shutter and the second shutter opens each connection portion, the first shutter is disposed in a space above the first connection portion, and the second shutter is placed on the second connection portion. It is placed in the space below. As a result, the movable panel can be pushed more toward the stationary side, which makes it possible to reduce the distance between the stationary panel and the movable panel, and also to reduce the installation space of the switchgear.

In addition, the opening and closing device includes a fixed panel, a movable panel movably mounted to the fixed panel, first and second connecting portions which are electrically connected or short-circuited by pushing or pulling the movable panel with respect to the fixed panel, A first shutter connected to the first support arm rotatably attached to the fixed plate between the movable panels, the first shutter being opened or shielded at the same time and disposed in a space below the first connecting portion when the first connecting portion is opened; And a first drive member provided on the movable plate, the first drive member having a first horizontal portion and a first inclined portion, and one side connected to the first connecting member rotatably attached to the first support arm, and the other side fixed to the fixed plate. A first operating link rotatably attached, a first roller rotatably attached to the first operating link and rotating along the first drive member, and rotating between the stationary plate and the movable plate. A second shutter disposed in a space above the second connecting portion when the second connecting portion is opened; A second driving member having a second horizontal portion sandwiched between the first horizontal portion of the first driving member and a second inclined portion symmetrically disposed in an inclined direction of the first inclined portion of the first driving member; A second operation link connected to a second connecting member rotatably attached to the second support arm, the second operation link rotatably attached to the fixing plate on the other side, and the second driving member rotatably attached to the second operating link; It has a second roller that rotates along the. As a result, the movable panel can be pushed more toward the stationary plate side, and the distance between the stationary plate and the movable plate can be reduced.

Moreover, reduced operation of each support arm by connecting the first shutter support member between the first support arm and the first shutter and the second shutter support member between the second support arm and the second shutter. It is possible to move the first shutter and the second shutter in opposite directions at an angle. Therefore, the movable panel can be pushed to the stationary side more, and the distance between the stationary plate and the movable plate can be reduced.

Claims (3)

The first shutter and the second connecting portion which electrically connect or short-circuit the first connecting portion and the second connecting portion by pushing or pulling the movable plate with respect to the fixed plate, while opening or shielding the first shutter and the second connecting portion When the second shutter is moved in opposite directions to each other, and each of the first shutter and the second shutter opens the respective connecting portions, the first shutter is disposed in a space above the first connecting portion, And shutters arranged in a space below the second connecting portion. Fixed plate, A movable panel mounted to the fixed panel to be movable; A first connecting portion and a second connecting portion which are electrically connected or short-circuited by pushing or pulling the movable plate against the fixed plate; A lower side of the first connecting portion when connected to the first supporting arm rotatably attached to the fixed plate between the fixed plate and the movable plate and opening or shielding the first connecting portion and opening the first connecting portion. A first shutter disposed in the space of the A first drive member provided in the movable panel and having a first horizontal portion and a first inclined portion; A first operation link connected to the first connecting member rotatably attached to the first support arm, the other end rotatably attached to the fixed plate; A first roller rotatably attached to the first operation link, the first roller rotating along the first drive member; An upper side of the second connecting portion when connected to the second supporting arm rotatably attached to the fixed plate between the fixed plate and the movable plate, opening or shielding the second connecting portion, and opening the second connecting portion. A second shutter disposed in a space of A second horizontal portion disposed between the movable panel and opposed to the first horizontal portion of the first driving member, and a second inclined portion symmetrically disposed in an inclination direction of the first inclined portion of the first driving member; A second drive member, A second operation link, one of which is connected to a second connecting member rotatably attached to the second supporting arm, and the other of which is rotatably attached to the fixing plate; And a second roller rotatably attached to the second operation link, the second roller rotating along the second drive member. The method of claim 2, And a first shutter support member connected between the first support arm and the first shutter, and a second shutter support member connected between the second support arm and the second shutter.