JP7097752B2 - Architectural switchgear with obstacle detection means - Google Patents

Description

The present invention relates to the technical field of a building switchgear provided with obstacle detecting means built in an opening such as an entrance / exit of a building.

Today, there is known a building opening / closing device configured to open / close an opening that can pass in the front-rear direction such as an entrance / exit by moving the opening / closing body up / down by driving a switchgear. An example is a shutter device for construction in which the shutter curtain is moved up and down by the rotation of the take-up drum accompanying the forward and reverse drive of the motor to open and close the opening. In this case, the shutter is closed. In order to prevent obstacles such as humans and luggage from being caught in the shutter curtain, an obstacle detecting means is provided, and when the obstacle detecting means detects an obstacle, the closing operation of the shutter curtain is urgently stopped. The obstacle avoidance operation such as is performed.
As such an obstacle detecting means, the seat plate provided at the lowermost end of the shutter curtain can be moved up and down with respect to the upper upper seat plate portion connected in a series to the lowermost end portion of the shutter curtain and the upper seat plate portion. The lower seat plate portion is provided with an obstacle detection sensor that is provided on the upper seat plate portion and detects that the lower seat plate portion has moved upward with respect to the upper seat plate portion. It has been proposed that the obstacle detection sensor determines that the obstacle has been detected when the obstacle detection sensor detects that the shutter has moved up due to contact with an obstacle.
By the way, when an obstacle comes into contact with the lower seat plate portion, the contact position is different in the left-right direction and the front-back direction. Therefore, the lower seat plate portion has various contact positions corresponding to the different contact positions. There is a problem that it is difficult to detect these upward movements simply by one obstacle detection sensor provided between the upper and lower seat plates.
Therefore, between the lower seat plate portion and the upper seat plate portion, an intermediate detection member that moves upward (swings) with the shaft support portion supported by the upper seat plate portion as a fulcrum (starting point) is provided, and the intermediate detection member is the above-mentioned intermediate detection member. It has been proposed that the lower seat plate portion is configured so that it can be detected by an obstacle detection sensor when it receives various upward movements (see, for example, Patent Documents 1 and 2).

Japanese Unexamined Patent Publication No. 8-105280 Japanese Unexamined Patent Publication No. 10-46962

By the way, in the conventional one, the space for arranging the obstacle detection sensor is provided in the upper seat plate portion formed in the shape of a glyph. In this case, the space for arranging the obstacle detection sensor is set in the lower seat plate portion. Even if the upper seat plate is moved upward, it is configured to be secured above the lower seat plate portion in the upper seat plate portion, so that the upper seat plate portion must have a high vertical height (bulky) by that amount. I don't get it. On the other hand, as a shutter device for construction, for example, in order to secure a wide effective opening of the opening, the storage space of the seat plate for the magsa portion when the shutter curtain is fully opened is reduced to reduce the opening height of the opening. However, there is a problem that the height of the upper seat plate is increased, which violates the demand for widening the effective opening of the opening. There is a problem to be solved by the present invention.

The present invention has been created for the purpose of solving these problems in view of the above circumstances, and the invention of claim 1 opens and closes an opening that can pass in the front-rear direction by moving up and down. A lower seat provided with an opening / closing body and having a seat plate provided at the lowermost end of the opening / closing body, which moves upward with respect to the upper seat plate portion when an obstacle comes into contact with the upper seat plate portion connected to the opening / closing body. It is configured to be provided with a plate portion, and is interposed between the upper and lower seat plate portions, and the intermediate detection member that moves upward in response to the upward movement of the lower seat plate portion and the intermediate detection member that moves upward come into contact with each other. In a building opening / closing device provided with an obstacle detection sensor provided with a detection actuating body that moves to perform an obstacle detection operation, the lower seat plate portion is a lower piece portion and both ends in the front-rear direction of the lower piece portion. It is formed horizontally from the front and rear side pieces provided upright from the edge and the upper ends of the front and rear side pieces, and is received by the front and rear locking receiving parts provided on the upper seat plate in a state where it can be moved upward. It is configured to include an upper piece that is locked and locked, and the front and rear side pieces and the lower piece form a concave fitting space with an upper opening between the front and rear upper pieces. The intermediate detection member includes a shaft support portion that is pivotally supported in the front-rear direction at a deviated portion on one side in the front-rear direction of the upper seat plate portion, and a vertical piece portion that hangs down from the shaft support portion in the vertical direction. It extends laterally from the lower end of the vertical piece while being separated from the lower piece of the lower seat plate, and the extended tip edge is supported by the locking receiving portion on the other side in the front-rear direction. The upper piece portion is provided with an L-shaped portion having a horizontal piece portion supported in an upwardly movable state, and the vertical piece portion faces the upper piece portion on one side in the front-rear direction. An inclined portion is formed, and a detection actuating portion separated from the detection actuating body is formed in the lateral piece portion, and an obstacle abuts on the lower piece portion of the lower seat plate portion to move upward. At least one of the front and rear upper pieces that have moved upward due to the movement of the vertical piece moves upward by moving the inclined portion of the corresponding vertical piece or the tip edge of the horizontal piece upward. The detection actuating body and the detection actuating portion are configured such that the obstruction detection actuating performed by the detection actuating portion that has moved up due to the contact of the obstacle abuts on the detection actuating body is recessed. It is a building opening / closing device characterized in that it is arranged in the space so as to be executed in the space .
According to the second aspect of the present invention, the detection operating portion enters the concave space in a state where the lower seat plate portion does not move upward, and the lower seat plate portion moves upward due to the contact with an obstacle. The switchgear for construction provided with the obstacle detecting means according to claim 1 , wherein the switchgear is further deeply inserted.
According to the third aspect of the present invention, the obstacle detection by the obstacle detection sensor is due to the detection operating body being displaced upward with the upward movement of the intermediate detection member in a state of being in contact with the detection operating portion. The contact with the detection operating part of the body is a contact in a state of being tilted so that the vertical piece side of the detection operating part is lowered, and the upward displacement of the detection operating body for detecting an obstacle is the detection operation . The obstacle according to claim 1 or 2 , wherein the body is accompanied by moving the detection operating portion, which changes so as to become steeper as the intermediate detection member moves upward, in a relatively downward direction. It is a building opening / closing device equipped with a detection means.

According to the first aspect of the present invention, the upper movement of the intermediate detection member that has received the upper movement of the lower seat plate due to the contact with the obstacle is detected by the obstacle detection sensor, and the contact position of the obstacle is used. The obstacle detection sensor enters the recessed space formed in the lower seat plate portion, even though the lower seat plate portion is capable of reliably detecting obstacles even if the lower seat plate portion moves up in various ways. As a result, the vertical height of the upper seat plate can be lowered, and as a result, the seat plate storage space in the magsa portion is reduced and the opening height of the opening is increased, and the effective opening of the opening is increased. Will be able to be widened.
Moreover, since the obstacle detection sensor in the non-detection state in which the lower seat plate is not moving upward is separated from the detection operating portion, the obstacle detection sensor is used when the lower seat plate is shaken due to vibration or the like. While avoiding malfunction, the obstacle detection sensor operates when the obstacle is detected in the recessed space, which can contribute to lowering the vertical height of the upper seat plate portion.
According to the second aspect of the present invention, in the process in which the lower seat plate portion moves upward based on obstacle detection, the detection operating portion, which is a constituent member of the intermediate detection member, has entered the concave space from the beginning. Things will go deeper and contribute to lowering the height of the seat plate.
According to the third aspect of the present invention, when the detection actuating body comes into contact with the detection actuating portion to perform the obstacle detection operation, the detection actuating body moves downward in the direction of descending the detection actuating portion that changes in a steep slope. As a result of the movement, the intermediate detection member that moves upward is detected, but the contact movement of the detection operating body with respect to the detection operating portion can be facilitated, and a reliable detection operation can be performed.

It is a front view of a shutter device for a building. It is a plan view of a seat plate. It is a front view of a seat plate. It is a side enlarged sectional view of the obstacle detection sensor part of a seat plate. (A) and (B) are operational explanatory views showing a state in which the lower seat plate portion moves upward in a parallel posture. (A) and (B) are operational explanatory views showing a state in which one side of the lower seat plate portion in the front-rear direction moves upward. (A) and (B) are operation explanatory views showing the case where the other side of the lower seat plate portion in the front-rear direction moves upward. (A), (B) and (C) are a front view, a plan view and a side view of the upper seat plate portion. (A), (B) and (C) are a front view, a plan view and a side view of the lower seat plate portion. (A), (B), and (C) are a front view, a plan view, and an enlarged side view of the intermediate detection member.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawing, 1 is a building shutter device (building opening / closing device) provided for opening / closing an opening that can pass in the front-rear direction, and the building shutter device 1 is provided on both the left and right sides of the opening. The guide rail 2, the shutter curtain (opening / closing body) 3 that opens and closes the opening by being guided up and down (up and down) to the guide rail 2, and the shutter curtain 3 provided at the upper end of the opening are wound. It is configured to be equipped with various member devices such as a take-up drum 4, an electric switchgear 5 that drives the take-up drum 4 in the forward and reverse directions, and a control unit 6 that controls the drive of the switchgear 5. It is the same as before. The definition of the front-back direction is that the direction normally passing through the opening is the front-back direction, the front side is "front" and the opposite side (the other side, the hand side) is "rear" with respect to the opening. The definitions before and after are provided for convenience, but it goes without saying that the definition is not limited to this.

At the lowermost end of the shutter curtain 3, a seat plate 7 having a width substantially the same as that of the shutter curtain 3 and long in the left-right direction is provided. An intermediate detection interposed between the upper seat plate portion 8 to be connected (provided), the lower seat plate portion 9 provided so as to be vertically movable with respect to the upper seat plate portion 8, and the upper and lower seat plate portions 9 and 9. It is configured to include an obstacle detection sensor 11 provided in the upper seat plate portion 8 in a state of being arranged between the member 10 and the upper seat plate portion 8 and the intermediate detection member 10, and these will be described in detail below. ..

The upper seat plate portion 8 has an opening on the lower side (lower end edge portion), and is formed in a rugged shape including an upper piece portion 8a on the ceiling side and side piece portions 8b on both front and rear sides. In the present embodiment, the upper piece portion 8a is a first upper piece portion 8d having a raised central (intermediate) portion in the front-rear direction with the front and rear stepped pieces 8c facing in the vertical direction interposed therebetween, and the first upper piece portion 8d. It is formed in a convex shape with a second upper piece 8e arranged in the front-rear direction lower than the first upper piece 8d, but is upward in the center (middle) part in the front-rear direction of the first upper piece 8d. The connecting piece portion 8f is formed so as to project toward. In the upper seat plate portion 8, the connecting piece portion 8f is fixed to the lowermost end slats 3a via a bolt 3b which is a fastening metal fitting.
Further, the side piece portion 8b is provided in a hanging shape from the outer edge of the second upper piece portion 8e in the front-rear direction, and the lower end portion of the side piece portion 8b is horizontally projected in the front-rear direction. One portion of 8 g is formed so as to protrude. Then, of the horizontal piece portion 8g, the portion extending toward the side piece portion 8b on the opposite side (opposing side) is locked for receiving and locking the lower seat plate portion 9 as described later. The receiving part is 8h.

On the other hand, the lower seat plate portion 9 has an opening on the upper side, and has a lower piece portion 9a on the bottom side and front and rear side piece portions 9b provided upright from both front and rear edges of the lower piece portion 9a. The side piece portion 9b is formed in a concave shape by providing the above, and the side piece portion 9b is a lower first side piece portion 9c erected from the front and rear end edges of the lower piece portion 9a, and the first side piece. A step piece portion 9d formed so as to face inward in the front-rear direction from the upper end portion of the portion 9c, a second side piece portion 9e formed upward from the inner end portion in the front-rear direction of the step piece portion 9d, and the first portion. It is formed as having an upper piece portion 9f formed horizontally from the upper end portion of the two side piece portion 9e toward the outside in the front-rear direction, and in the present embodiment, between the front and rear first side piece portions 9c. , And a recessed space S is formed between the second side piece portions 9e in a state of continuing in the vertical direction.
In this case, as is clear from FIGS. 6, 7, and 8, the upper piece portion 9f is received and locked to the front and rear locking receiving portions 8h provided on the upper seat plate portion 8 in a state where it can be moved upward.

Then, in the lower seat plate portion 9, the second side piece portion 9e is loosely fitted (with a gap (gap) in the front-rear direction) at the inner end in the front-rear direction of the upper seat plate portion locking receiving portion 8h. As a result, the position where the upper piece portion 9f is locked to the upper surface of the locking receiving portion 8h is set as the lower limit, and the position where the step piece portion 9d abuts on the lower surface of the locking receiving piece 8h is set as the upper limit so as to be movable up and down. However, the lower seat plate portion 9 has a natural downward movement posture in which the front and rear upper piece portions 9f are received and locked by the front and rear locking receiving portions 8h of the upper seat plate portion 8. The upper piece portion 9f constitutes a locking portion for locking the lower seat plate portion 9 with respect to the upper seat plate portion 8.
Moreover, in this case, the upward movement of the lower seat plate portion 9 moves upward in a state (parallel state) in which the lower seat plate portion 9 maintains the natural lower movement posture (see FIG. 5) in the front-rear direction. An inclined upward movement in which the upper piece 9f on one side is lifted (see FIG. 6), an inclined upward movement in which the upper piece 9f on the other side is lifted (see FIG. 7), and an inclined upward movement in between these. It is defined as including the up movement.

The upward movement posture with respect to the upper seat plate portion 8 when the lower seat plate portion 9 moves upward in this way is a typical example of the upward movement when an obstacle is in contact with the lower seat plate portion 9 and is pinched. When an obstacle comes into contact with the central part in the anteroposterior direction, the obstruction moves up while maintaining the natural downward posture (natural posture) (see FIG. 5), and deviates to one side in the anteroposterior direction. When an object comes into contact with the object, it moves upward in an inclined state in which one side is lifted (see FIG. 6), and when an obstacle comes into contact with the other side in the front-back direction, the other side is lifted. It is possible to show the upward movement in the tilted state (see FIG. 7), and the actual upward movement of the lower seat plate portion 9 is a complex combination of these upward movements, and the obstacle detection sensor as described later. 11 is set to detect any of these upward movements.

Further, in the intermediate detection member 10, one end portion in the front-rear direction is pivotally supported by the upper seat plate portion 8 so as to be swingable in the front-rear direction. That is, the intermediate detection member 10 includes a cylindrical shaft support portion 10a having an upper opening at the upper end portion, and the shaft support portion 10a is front and rear of a pair of front and rear second upper piece portions 8e of the upper seat plate portion 8. It is externally fitted to a columnar bearing portion 8i formed on the lower surface of the second upper piece portion 8e on one side in the direction so as to swing (slide) in the front-rear direction. The intermediate detection member 10 has a vertical piece portion 10b that hangs down from the shaft support portion 10a in the vertical direction (downward), and a lateral portion that extends laterally from the lower end portion of the vertical piece portion toward the other side in the front-rear direction. Between the shaft support portion 10a and the horizontal piece portion 10c in a state of being located on the other side in the front-rear direction with respect to the one-side portion 10c and the vertical piece portion 10b (the other side in the front-rear direction with respect to the vertical line X passing through the shaft support portion 10a described later). It is formed in a substantially L-shape by being provided with a reinforcing piece portion 10d provided so as to be connected, and the reinforcing piece portion 10d is formed of a shaft support portion 10a, a vertical piece portion 10b, and a horizontal piece portion 10c. It has a hollow shape (cylindrical shape) together with one side portion in the front-rear direction, and is configured to reinforce between the L-shaped vertical piece portion 10b and the horizontal piece portion 10c.

Moreover, the vertical piece portion 10b is configured to hang down from a position deviated to one side in the front-rear direction with respect to the vertical line X passing through the shaft support portion (axis center O) 10a. An arcuate (arc-shaped) portion 10f is formed so as to bulge toward one side in the front-rear direction from a portion that is biased to one side in the front-rear direction. An inclined portion (including an arcuate and linear inclination) 10 g inclined toward the other side is formed so as to face the upper piece portion 9f on one side in the front-rear direction as is clear from FIG. 4 , and is inclined. In the tilting process near the lower end of the shaped portion 10g, the vertical line X is crossed to reach the other side in the front-rear direction, and at a position lower than the locking receiving portion 8h, approximately L is approximately L at the one-side end portion in the front-rear direction of the horizontal piece portion 10c. They are connected via a character-shaped connecting portion 10h.

On the other hand, the horizontal piece portion 10c is provided so as to extend laterally from the portion connected to the vertical piece portion 10b toward the other side in the front-rear direction. The first is provided so as to be horizontal toward the other side in the front-rear direction up to a position beyond the center position (seat plate center position) M in the front-rear direction of 8 and separated from the detection actuating body 11c as is clear from FIG. The horizontal piece portion 10i and the first horizontal piece portion 10i extend in an inclined manner so as to rise from the other side end portion in the front-rear direction to the other side in the front-rear direction, and the inclined upper end portion (the other side end portion in the front-rear direction) is lowered. A second horizontal piece portion 10j set to reach the height of the upper piece portion 9f of the seat plate portion 9 and a horizontal shape from the other end portion in the front-rear direction to the other side in the front-rear direction of the second horizontal piece portion 10j. It is configured to include a third horizontal piece portion 10k that extends to the upper piece portion 9f on the other side in the front-rear direction of the lower seat plate portion 9 and abuts on the upper piece portion 9f from above.

Then, in the process of closing the opening in which the shutter curtain 3 is lowered, an obstacle comes into contact with the lower seat plate portion 9 from below, so that the lower seat plate portion 9 moves upward with respect to the upper seat plate portion 8. In response to this, the intermediate detection member 10 moves upward for obstacle detection with the shaft support portion 10a as a fulcrum. The upward movement of the intermediate detection member 10 will be described below.
As described above, in the state where the lower seat plate portion 9 is not in contact with obstacles, the upper piece portions 9f on both sides in the front-rear direction come into contact with the locking receiving portions 8h on both sides in the front-rear direction from above. In this state, when an obstacle comes into contact with the lower seat plate portion 9, the lower seat plate portion 9 is in the natural lower movement posture due to the contact position. Upward movement (first upward movement) in a state where the upper piece portions 9f on both sides in the front-rear direction are lifted and separated from the locking receiving portions 8h on both sides, and the upper piece portion 9f on one side in the front-rear direction is maintained. Is lifted from the locking receiving portion 8h on the side, and the upper piece portion 9f on the other side is in an inclined state of upward movement (second upward movement) in contact with the locking receiving portion 8h on the other side, and the other side in the front-rear direction. The upper piece portion 9f is lifted from the locking receiving portion 8h on the side thereof, and the upper piece portion 9f on one side in the front-rear direction moves upward in an inclined state in contact with the locking receiving portion 8h on the side (third upper part). The upper movement with the movement) as a typical state will be performed, and the upper movement of the intermediate detection member 10 will be described using the upper movement in this typical state.

First, the intermediate detection member 10 has a corner between the upper piece portion 9f and the second side piece portion 9e on one side in the front-rear direction when the lower seat plate portion 9 is in a natural hanging posture without any obstacle contact. The portion 9g is separated from the vertical piece portion 10b, and on the other side in the front-rear direction, the third horizontal piece portion 10k is in a mounted state in which the third horizontal piece portion 10k is in contact with the upper piece portion 9f from above. When 9 makes the first and third upward movements in which the upper piece portion 9f on the other side in the front-rear direction moves upward, the intermediate detection member 10 is the corner portion of the lower seat plate portion 9 at the initial stage of the upward movement. Since 9 g is separated from the vertical piece portion 10b, the third horizontal piece portion 10k moves upward by being pushed up by the upper piece portion 9f on the other side in the front-rear direction.
When the upward movement in this case is the third upward movement in which only the other side in the front-rear direction is lifted, the intermediate detection member 10 has the third horizontal piece portion 10k due to the upper piece portion 9f on the other side in the front-rear direction. The upward movement that is pushed up will be a continuous upward movement, but when the lower seat plate portion 9 is the first upward movement (upward movement on both sides in the front-rear direction) in a state where the natural lower movement posture is maintained. In the case where the lower seat plate portion 9 rises in an ideal state located at the center position in the front-rear direction as shown in FIG. 5, the corner portion 9g on one side in the front-rear direction of the lower seat plate portion 9 becomes the inclined portion 10e. Since the lower seat plate portion 9 is separated from the above (separated by play), the lower seat plate portion 9 comes into contact with the inclined portion 10 g of the vertical piece portion 10b from the middle of the upward movement. The seat plate portion 9 swings in response to the second upward movement, but if the lower seat plate portion 9 is displaced in the front-rear direction, the position and position of the displacement are displaced. It will swing (upward) according to the amount of deviation. In that case, the corner portion 9g moves upward in a state of being in contact with the inclined portion 10g from the beginning, and the third horizontal piece portion 10k is above the other side in the front-rear direction from the beginning without the corner portion 9g contacting the inclined portion 10g. The upper movement pushed up by the single portion 9f is set as a bipolar state, and the combined upper movement is actually performed.

On the other hand, when the lower seat plate portion 9 makes the second upward movement, the upper piece portion 9f on the other side in the front-rear direction remains in contact with the locking receiving portion 8h, and the upper piece portion 9f on the other side in the front-rear direction is on the upper side. One portion 9f moves upward in an inclined shape, and the corner portion 9g on the side abuts on the inclined portion 10g at a position deviated to one side in the front-rear direction from the perpendicular line X of the shaft support portion 8i. When the corner portion 9g rises in this contact state, the corner portion 9g rises while sliding the inclined portion 10g, but the inclined portion 10g moves toward one side in the front-rear direction toward the upper side. Since the vertical piece portion 10b is set to be biased, the vertical piece portion 10b is pushed toward the other side in the front-rear direction by receiving the sliding rise of the corner portion 9g. As a result, the intermediate detection member 10 is set to swing so that the third horizontal piece portion 10k moves upward with the shaft support portion 10a as a fulcrum, and the obstacle detection sensor 11 performs a detection operation in this upward movement process. Therefore, the inclined portion 10g configured in this way pushes the vertical piece portion 10b toward the perpendicular line X direction when the lower seat plate portion 9 slides in the contact state. It constitutes 10e.
In this case, when the third upward movement of the lower seat plate portion 9 is in the maximum state, that is, the stepped piece portion 9d on one side in the front-rear direction of the lower seat plate portion 9 is the horizontal piece portion 8b of the upper seat plate portion 8. When the corner portion 9g on the side is in contact with the above portion, the corner portion 9g exceeds the inclined portion 10g and reaches the upper half portion of the arc-shaped portion 10f. It is supposed to be located on the side deviated to one side in the front-rear direction with respect to the vertical line X, and is set not to cross the other side in the front-back direction.

On the other hand, the obstacle detection sensor 11 is configured by using a general-purpose micro switch of a normally closed contact (B contact) type in the present embodiment, but the sensor main body 11a is shaken via a support shaft 11b. The movably provided detection lever (corresponding to the "detection actuating body" of the present invention) 11c receives the urging force of the return ammunition 11c (in the present embodiment, the self-weight lowering force of the detection lever 11c is also received. The switch lever 11d provided on the sensor main body 11a is pushed and moved by moving downward, and in this state, the obstacle detection sensor 11 is in the non-detection state (OFF detection state). Then, when the detection lever 11c moves upward as described later, the switch lever 11d moves to the natural posture side under the urging force of the return ammunition of the interior (not shown) because the pressing is released. As a result, the obstacle detection sensor 11 is set to switch to the detection state (ON detection state).

In the present embodiment, the obstacle detection sensor 11 configured in this way is attached to the upper seat plate portion 8 via the inverted L-shaped metal fitting 12, but the attachment position thereof is the upper seat plate portion 8. On the lower surface of the first upper piece portion 8d of the above, the position is deviated to the other side in the front-rear direction with respect to the seat plate center position M, and is arranged at a position facing above the first and second horizontal piece portions 10i and 10j. In the obstacle detection sensor 11 attached in this way, the detection lever (corresponding to the "detection actuating body" of the present invention) 11c is substantially located at the seat plate center position M. The first horizontal piece portion 10i is set to face the intermediate position in the front-rear direction, that is, the recessed space S is arranged to face downward. In a natural state (normal state, non-detection state) in which the lower seat plate portion 9 does not come into contact with an obstacle, the lower end edge of the detection lever 11c is the opposite first horizontal piece portion 10i of the lower seat plate portion horizontal piece portion 10c. In this state, the obstacle detection sensor 11 is in a natural state in which the detection lever 11c is moved downward as described above, and is in a non-detection state.

When the lateral piece portion 10c of the intermediate detection member 10 moves upward as described above with the shaft support portion 10a as a fulcrum due to the upward movement of the lower seat plate portion 9 due to the contact with an obstacle from such a non-detection state, it is detected. The detection lever 11c is pushed up when the lever 11c comes into contact with the intermediate portion in the front-rear direction of the first lateral piece portion 10i that has moved upward, whereby the obstacle detection sensor 11 switches from the non-detection state to the detection state ( The switch is switched), and in this way, the first lateral piece portion 10i is configured with a detection operating portion for detecting and operating the detection lever 11c.

In this case, the first horizontal piece portion 10i is in a gently inclined state in which one side in the front-rear direction (vertical piece portion 10b side) is lowered when it comes into contact with the detection lever 11c. As the upward movement of the plate portion 9 progresses, the first lateral piece portion 10i becomes higher on the other side in the front-rear direction and changes from the gently inclined state to the steeply inclined state, thereby pushing up the detection lever 11c. Will be advanced and the obstacle detection sensor 11 will detect the obstacle.
That is, the movement (sliding) of the detection lever 11c with respect to the first horizontal piece portion 10i at this time is such that one side in the front-rear direction moves upward so that the intermediate detection member 10 moves upward while receiving the upward movement of the first horizontal piece portion 10i. This includes moving the first horizontal piece portion 10i in an inclined state that changes to be lowered and steeply inclined in the downward direction, thereby pushing up the first horizontal piece portion 10i of the detection lever 11c while sliding. The operation can be smoothly performed, and the detection operation of the obstacle detection sensor 11 is reasonably improved in reliability.

Moreover, as described above, the intermediate detection member 10 moves upward with the shaft support portion 10a as a fulcrum in response to the upward movement caused by the seat plate portion 9 coming into contact with the obstacle, and the obstacle detection sensor 11 detects this. Therefore, the obstacle detection operation is performed. In this case, the intermediate detection member 10 has an inclined portion in the concave space S formed in the lower seat plate portion 9 in a state where there is no obstacle contact. A part of 10 g and the first and second horizontal pieces 10i and 10j are shallowly inserted. Then, when the intermediate detection member 10 receives the upward movement corresponding to the obstacle contact of the lower seat plate portion 9 from this state, the intermediate detection member 10 further becomes one of the third horizontal piece portions 10k. The space S is set so as to penetrate deeply into the space S including the portion (one side portion in the front-rear direction), and thus the storage space for the intermediate detection member 10 that swings in response to obstacle detection is lowered. It has a structure secured to the seat plate portion 9.
Further, in this case, the obstacle detection sensor 11 is also set so that the lower portion also enters the space S of the lower seat plate portion 9 which has moved upward due to the obstacle contact.
In the figure, 13 is a steady rest material provided at both left and right ends of the upper seat plate portion 8, and 14 is an extension member provided at both left and right end portions of the lower seat plate portion 9, both of which are guide grooves of the guide rail 2. It is set to fit inside. Further, 15 is an operation switch provided for forward / reverse drive of the switch 5 and its stop, and 16 is a transmitter for transmitting a detection signal from the obstacle detection sensor 11.

In the present embodiment configured as described above, when an obstacle comes into contact with the lower seat plate portion 9 in the process of closing the shutter curtain 3, the lower seat plate portion 9 is the obstacle. The obstacle detection sensor 11 moves upward depending on the contact position and receives the upward movement of the intermediate detection member 10 interlocking with the upward movement, and the obstacle detection sensor 11 operates the obstacle detection operation. In this case, the obstacle detection sensor 11 moves downward. It is in a state of entering the recessed space S formed in the seat plate portion 9. Therefore, it is not necessary for the upper seat plate portion 8 to secure a space corresponding to the recessed space S in the upper seat plate portion 8 itself, and the height can be made low.

In this case, the obstacle detection sensor 11 can be provided on the upper seat plate portion 8 at a position where the concave space S faces downward, and in the present embodiment, is arranged at a substantially central portion in the front-rear direction. The space S can be arranged in a vertical position directly above the space S, which not only facilitates the installation of the obstacle detection sensor 11, but also has no obstacle detection, that is, the upper movement of the lower seat plate portion 9. The obstacle detection sensor 11 can be configured to enter the recessed space S even in a normal state where there is no obstacle, and the obstacle detection sensor 11 in a state where the obstacle is detected can be configured to enter deeper. This can also contribute to lowering the height of the seat plate 7. Moreover, the obstacle detection sensor 11 can be arranged in a vertical posture, and the sensor sensitivity does not decrease as in the case of detecting in an inclined direction.

Further, in this case, not only the obstacle detection sensor 11 but also the intermediate detection member 10 has a concave shape with respect to the first horizontal piece portion 10i constituting the detection operating portion that abuts on the detection lever 11c of the obstacle detection sensor 11. By entering the space S of the above, the vertical height of the upper seat plate portion 8 can be made smaller, whereby the seat plate 7 can be set to a lower height.
Moreover, in this case, the lower end of the detection lever 11c of the obstacle detection sensor 11 enters the recessed space S even when the obstacle is not detected, and as a result, the height of the seat plate 7 is lowered. Not only the setting becomes easier, but also the vertical obstacle detection sensor 11 can be arranged by utilizing the concave space S, and it is possible to avoid the complicated mounting structure.

Further, in this case, since the detection lever 11c of the obstacle detection sensor 11 in the non-detection state in which the lower seat plate portion is not moving upward is separated from the first horizontal piece portion 10i, the lower seat plate portion 9 is separated. When the obstacle detection sensor 11 detects an obstacle while avoiding a malfunction such that the obstacle detection sensor 11 detects and operates inadvertently due to vibration or the like, the operation is concave. As a result of being executed in the space S of the above, this can further contribute to lowering the vertical height of the upper seat plate portion 8.

Further, as the intermediate detection member 10, the upper end portion of the vertical piece portion 10b on one side in the front-rear direction is oscillatedly supported on the upper seat plate portion 8 side via the shaft support portion 10a, and the other side in the front-rear direction is the lower seat plate portion 9. Since the first horizontal piece portion 10i as a detection operating portion for causing the detection operation of the obstacle detection sensor 11 is formed on the horizontal piece portion 10c supported by the vertical piece portion 10, the intermediate detection member 10 is mounted on the vertical piece portion. The structure can be simplified by making it possible to construct an L-shaped structure having a simple structure by the 10b and the horizontal piece portion 10c.

Further, in this case, the obstacle detection sensor 11 activates the obstacle detection operation when the detection lever 11c comes into contact with the first horizontal piece portion 10i. At this time, the detection lever 11c is in the obstacle detection state. As a result of the upper movement and the detection operation, including the state accompanied by the movement in the downward direction of the first horizontal piece portion 10i, which changes in a steep slope as the movement progresses, the intermediate detection that moves upward Although the member 10 is detected, the contact movement of the detection lever 11c with respect to the first horizontal piece portion 10i can be facilitated, and the certainty of the detection operation is improved.

Needless to say, the present invention is not limited to that of the embodiment, but in the embodiment, the shutter curtain 3 is connected to the plate-shaped slats in a series in the vertical direction. The structure is not limited to this, but the so-called pipe type (grill type) in which pipe materials are arranged at intervals in the vertical direction, and the slats are tubular (follow-shaped). Needless to say, it can be executed even if it has an appropriate shape such as a panel plate or a panel plate.

INDUSTRIAL APPLICABILITY The present invention can be used for a building switchgear provided with obstacle detecting means built in an opening such as an entrance / exit of a building.

1 Architectural shutter device 2 Guide rail 3 Shutter curtain 3a Bottom end slats 7 Seat plate 8 Upper seat plate 8h Locking receiving part 9 Lower seat plate 10 Intermediate detection member 10a Shaft branch 10b Vertical piece 10c Horizontal piece 10e Detection receiving Part 10i 1st horizontal piece 10j 2nd horizontal piece 10k 3rd horizontal piece 11 Obstacle detection sensor 11c Detection lever M Seat plate center O Axis center S Recessed space X Vertical wire

Claims (3)

An opening / closing body that opens / closes an opening that can pass in the front-rear direction by moving up and down is provided, and a seat plate provided at the lowermost end of the opening / closing body is in contact with an upper seat plate portion connected to the opening / closing body and an obstacle. An intermediate detection member that is provided with a lower seat plate that moves upward with respect to the upper seat plate, is interposed between the upper and lower seat plates, and moves upward in response to the upper movement of the lower seat plate. In a building opening / closing device provided with an obstacle detection sensor provided with a detection actuating body that moves up to perform an obstacle detection operation by abutting against the moving intermediate detection member .
The lower seat plate portion is formed horizontally from the lower piece portion, the front and rear side pieces provided upright from both front and rear edges of the lower piece, and the upper end portions of the front and rear side pieces. The front and rear locking receiving portions provided on the upper seat plate portion are provided with an upper piece portion that is received and locked in a state where it can be moved upward. A concave fitting space with an upper opening between the upper pieces is formed.
The intermediate detection member includes a shaft support portion that is pivotally supported in the front-rear direction at a deviated portion on one side in the front-rear direction of the upper seat plate portion, a vertical piece portion that hangs down from the shaft support portion in the vertical direction, and the vertical piece. It extends laterally from the lower end of the portion to the lower piece of the lower seat plate, and the extended tip edge is supported by the locking receiving portion on the other side in the front-rear direction. It has an L-shaped part having a horizontal piece that is supported in a state where it can move upward in one part.
The vertical piece portion is formed with an inclined portion facing the upper piece portion on one side in the front-rear direction, and the horizontal piece portion is formed with a detection operating portion separated from the detection operating body.
At least one of the front and rear upper pieces that have moved upward as the obstacle abuts on the lower piece of the lower seat plate and moves upward is the inclined portion or the horizontal piece of the corresponding vertical piece. It is configured to move the tip edge of the surface upward to move the detection actuating part upward.
In the detection actuating body and the detection actuating portion, the obstacle detection operation performed by the detection actuating portion that has moved upward due to the contact of the obstacle abuts on the detection actuating body is executed in the concave fitting space. A switchgear for construction, characterized in that it is arranged in the space so as to be . The detection operating part enters the concave space in a state where the lower seat plate portion does not move upward, and the lower seat plate portion moves upward due to the contact with an obstacle to enter deeper. A switchgear for construction provided with the obstacle detecting means according to claim 1 . Obstacle detection by the obstacle detection sensor is due to the fact that the detection actuating body is displaced upward with the upward movement of the intermediate detection member in a state of being in contact with the detection actuating portion.
The contact of the detection operating body with the detection operating portion is a contact in a state of being inclined so that the vertical piece side of the detection operating portion is lowered.
The upward displacement for detecting an obstacle of the detection operating body is that the detection operating body moves in a direction relatively downward with respect to the detection operating portion that changes so as to become steeper as the intermediate detection member moves upward. A switchgear for construction provided with the obstacle detecting means according to claim 1 or 2 , wherein the switchgear is provided with the above-mentioned obstacle detecting means.

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