JP4731061B2 - Shutter storage case opening and closing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a shutter that is installed at an entrance of a building or an opening of a passage, etc., and forms a fire prevention compartment in the event of a fire, and in particular, opens and closes a lower opening of a storage case that houses a shutter curtain. The present invention relates to an opening / closing device.
[0002]
[Prior art]
In general, it is obliged to install a shutter for fire prevention in an opening of a building such as a large-scale office, a warehouse, a store, etc. in order to form a fire prevention section in the event of a fire. In the case of a wide opening, a plurality of shutter curtains are guided by providing a rotating rail at an appropriate position. However, if the rotating rail is fixed, there is a problem that it becomes an obstacle to traffic and looks bad, so in recent times (that is, when there is no fire), together with the shutter curtain, It is known that an opening can be made postless by storing a rotating rail in a shutter storage case on the ceiling.
As a conventional example of such a shutter, for example, one described in Japanese Patent Application Laid-Open No. 10-102946 (hereinafter referred to as Conventional Example 1) is known. In the conventional example 1, the shutter curtain and the rotating rail are stored and arranged in a shutter storage case provided on the ceiling in a normal state, and when a fire occurs, a signal from a fire sensor or the like is received to open and close the shutter. The brake of the machine is released and the shutter curtain descends under its own weight. Also, following the lowering of the shutter curtain, the rotating rail stored in the shutter storage case rotates downward, and the lower end of the rotating rail is fixed to the floor surface. While being guided by this rotating rail, it can be smoothly lowered and the desired opening can be closed.
[0003]
By the way, in such a shutter curtain and a structure in which the rotating rail is housed and arranged in the shutter housing case on the ceiling, the opening of the lintel (squeezing opening when the shutter curtain is housed in the case) is provided. It looks bad if it is left free. Therefore, a lintel panel for closing the lower lintel portion of the shutter housing case is installed when the shutter curtain and the rotating rail are housed. The lintel panel needs to be automatically opened when the shutter curtain is lowered. Conventionally, as described in Japanese Patent Laid-Open No. 11-22343 (hereinafter referred to as Conventional Example 2), the shutter opening and closing device is used. The lintel panel is opened and closed by providing an electromagnetic switch that operates in conjunction with the lintel.
[0004]
[Problems to be solved by the invention]
However, the shutter described in the above-described conventional example 2 uses a lintel panel to which an electromagnetic switch is attached to open and close the lintel portion of the shutter storage case, which makes the configuration complicated. In addition, high costs are incurred. Furthermore, when an electromagnetic switch breaks down, there may be a problem that the lintel panel cannot be opened in the event of a fire. Therefore, frequent maintenance is required to avoid such a trouble.
The present invention has been made to solve such a conventional problem, and an object of the present invention is to open and close a shutter storage case that can open and close a lintel panel with a simple configuration. To provide an apparatus.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the invention described in claim 1 of the present application includes a shutter curtain that opens and closes an opening of a building, a lintel case formed in a lower portion of the shutter storage case, and an upper end portion in the lintel case. And a rotary rail that rotates in the vertical plane of the opening following the raising and lowering of the shutter curtain, and a lintel panel that opens and closes as the rotary rail operates. A plurality of lintel panels that are connected along the longitudinal direction of the lower opening of the lintel case and that can be freely opened and closed via hinges at the lower opening of the case; Panel lifting means that opens and closes each lintel panel in conjunction with the rotation of the pivot rail; and the lintel panel lifting means is rotatable about a support shaft. Na A descending lever, a cable body that connects the vicinity of the rotating tip of the lifting lever and the lintel panel, and is attached to the lifting lever, and abuts on the upper side of the rotating rail at the beginning or end of the descending of the rotating rail. And an engaging pin for sequentially rotating the elevating lever of each lintel panel.
[0006]
According to a second aspect of the present invention, the elevating lever has a substantially “H” shape, the support shaft is formed in the vicinity of one end of the elevating lever, and the cord is formed in the vicinity of the other end. The strip is locked, and further, the engaging pin is attached in the vicinity of the central portion of the “H” shape. According to a third aspect of the present invention, the lintel panel lifting and lowering means is configured such that the pivot rail further pivots downward after the pivot rail is pivoted downward and the lintel panel is fully opened. In this case, a stopper member for stopping the rotation of the elevating lever is provided.
[0007]
According to a fourth aspect of the present invention, when the length of the lower opening of the shutter storage case is longer than the length of the rotating rail, when the rotating rail is rotated, the rotating rail is The lintel panel lifting / lowering means disposed at a portion not contacting the engaging pin of the lifting / lowering lever is configured such that a seat plate attached to the lowermost part of the shutter curtain contacts the engaging pin and rotates the lifting / lowering lever. It is characterized by that.
According to a fifth aspect of the present invention, when the rotating rail rotates, the lintel panel elevating means disposed at a portion where the rotating rail does not contact the engaging pin of the elevating lever is the seat. A stopper member for stopping the rotation of the elevating lever when the plate is lowered is provided.
The invention according to claim 6 is characterized in that the stopper member includes adjusting means for adjusting the opening / closing position of the lintel panel by adjusting the length of the cable body.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 is a cross-sectional view of a shutter storage case opening and closing device according to an embodiment of the present invention, FIG. 2 is a cross-sectional view showing an enlarged configuration of a main part, and FIG. 3 is an enlarged front view of a lintel panel lifting / lowering means in FIG. It is.
As shown in the figure, this opening / closing device 1 opens and closes a lower opening 2a of a lintel case 2 formed on a ceiling 30 in an opening of a building. The lintel case 2 houses a rotating rail 12 that rotates following the raising and lowering of the shutter curtain. A lintel panel 3 that is a plurality of case lids is connected to the side edge of the lower opening 2 a along the longitudinal direction of the opening and via a hinge 4. As will be described later, each lintel panel is provided with panel elevating means 26 that opens and closes each lintel panel in conjunction with the rotation of the rotation rail 12.
[0009]
The lintel panel lifting / lowering means 26 includes a base 5 which is fixed to the inner surface side of the lintel case 2 and has a concave shape in cross section, and an elevating lever 6 which is attached to the base 5 and has a “H” shape. One end of the elevating lever 6 is pivotally locked to the base 5 by a rotating shaft 6a. Further, the other end portion of the elevating lever 6 is locked with a rope 7 such as a wire or a string (hereinafter abbreviated as a wire), and the tip of the wire 7 has a “U” shape. A locking metal piece 8 is attached, and the locking metal piece 8 is locked to a bracket 9 attached to the lintel panel 3.
An engagement hanging roller 11 (hereinafter referred to as an engagement pin) that comes into contact with the upper side of the rotating rail 12 when the rotating rail 12 rotates is attached to a substantially central portion of the elevating lever 6. When housed in 2, the rotating rail 12 comes into contact with the engaging pin 11 to rotate the elevating lever 6 upward. That is, the engaging pin 11 abuts on the upper side of the rotating rail 12 at the beginning or end of the lowering of the rotating rail 12, and the elevating lever 6 is sequentially rotated to open or close each lintel panel 3.
[0010]
When the length of the lower opening of the shutter storage case is longer than the length of the rotating rail 12, when the rotating rail 12 rotates, the rotating rail does not contact the engaging pin of the lifting lever A lintel panel elevating means 26a having a bent up / down lever 6a having an upward opening right angle lever shape is arranged (FIGS. 5 to 9). An engagement pin 11a is provided near the corner of the right-angle lever, and abuts against the seat plate 20 attached to the lowermost part of the shutter curtain to open or close the lintel panel 3d at the center of the opening.
[0011]
A wire guide roller 10 is attached to the base 5, and the wire 7 is in contact with the wire guide roller 10. Accordingly, the vertical movement of the wire 7 is guided by the wire guide roller 10.
Furthermore, an arm adjustment bolt (stopper member) 13 is attached to the base 5, and as shown in FIG. 2, when the upper end portion of the arm adjustment bolt 13 comes into contact with the lift lever 6, the lift lever 6 Is restricted from rotating downward. That is, by adjusting the position of the upper end portion of the arm adjustment bolt 13, the rotation angle of the elevating lever 6, and thus the opening angle of the lintel panel 3 can be set to a predetermined position.
A locking piece 14 having an L-shaped cross section is attached to a portion of the lower opening 2a of the lintel case 2 facing the hinge 4 mounting portion. When the lintel panel 3 is closed, the locking piece The lintel panel 3 is locked by 14.
[0012]
FIG. 1 shows a configuration of a lintel case 2 and a shutter storage case 15 disposed on the upper part thereof. As shown in the figure, when the shutter curtain 16 is housed, the rotating rail 12 is housed in the lintel case 2, and the shutter curtain 16 is attached to the winding drum 18 via the shutter guide roller 17. It is in a wound state. Reference numeral 19 denotes a winding and braking system for reversibly rotating the winding drum 18.
[0013]
FIG. 4 shows a state of engagement between the seat plate 20 attached to the lowermost part of the shutter curtain 16 and the rotating rail 12. As shown in FIG. 5A, the seat plate 20 and the rotating rail 12 are connected by a crank-shaped auxiliary arm 21, and one end of the auxiliary arm 21 is connected to the rotating rail by a rotating shaft 21a. 12 is pivotably connected. A moving roller 22 is attached to the other end. The moving roller 22 is disposed in contact with the upper surface of the seat plate 20, and the upper surface of the seat plate 20 is moved sideways as the seat plate 20 moves up and down. To move in the direction.
Further, a wire 23 is attached to one end of the auxiliary arm 21, and the wire 23 is fixed to the lower end portion of the rotating rail 12 via a guide bar 24. A trapezoidal stopper 25 is provided in the vicinity of the auxiliary arm 21 mounting portion of the rotating rail 12, and a rail cover 27 for opening and closing the lower side surface of the rotating rail 12 is provided.
Therefore, when the shutter curtain 16 is wound up by the winding and braking system 19 shown in FIG. 1, the seat plate 20 moves upward, and the moving roller 22 moves in the lateral direction on the upper surface of the seat plate 20, so that the auxiliary arm 21 Comes into contact with the stopper 25, and the rotating rail 12 rotates upward. That is, the rotating rail 12 operates so as to be lifted upward in the order of (a), (b), and (c) of FIG.
[0014]
Next, the operation of this embodiment will be described. FIG. 5 shows a state immediately before the rotating rail 12 is housed in the lintel case 2, and FIGS. 6 to 9 show that the rotating rail 12 is gradually housed in the lintel case 2 from the state of FIG. 5. It shows how it goes. When the rotating rail 12 descends from the case 2 and closes the shutter, the rotating rail 12 rotates in the direction of the dotted arrow in the figure.
10 is a side view at point P1 in FIG. 5, FIG. 11 is a side view at point P in FIG. 6, FIG. 12 is a side view at point P1 in FIG. 7, and FIG. Side views at P1 are shown respectively. The side view at the point P1 in FIG. 9 is the same as FIG.
[0015]
Now, when the shutter curtain 16 is wound up by operating the hoisting and braking system 19 from the state in which the shutter curtain 16 is fully closed, as shown in FIGS. The seat plate 20 attached to the lowermost part is lifted upward, and the rotating rail 12 rotates to move upward.
Then, when the seat plate 20 reaches the vicinity of the opening 2a of the lintel case 2, as shown in FIG. 5, the base portion of the rotating rail 12 is first accommodated in the opening 2a. As a result, the rotating rail 12 comes into contact with the engaging pin 11 of the lintel panel elevating means 26 located closest to the rotating rail 12 and lifts the engaging pin 11 upward, as shown in FIG. The elevating lever 6 rotates upward, whereby the wire 7 is pulled, so that the lintel panel 3a rotates to close the lower opening 2a of this portion.
Thereafter, when the rotating rail 12 is further lifted upward, the rotating rail 12 comes into contact with the engaging pin 11 of the lintel panel lifting / lowering means 26 corresponding to the lintel panel 3b as shown in FIG. The lintel panel 3b is closed in the same procedure as described above.
Similarly, the lintel panel 3c is closed in the order of FIG. 7 and FIG. Further, since the length of the lintel case in the lateral direction is longer than the length of the rotating rail 12, the engaging pin 11 included in the lintel panel lifting / lowering means 26 corresponding to the lintel panel 3 d is connected to the rotating rail 12. Do not touch. Therefore, the lintel panel 26 with respect to the lintel panel 3d is lifted upward when the engaging pin 11 of the elevating lever 6 comes into contact with the seat plate 20. Thereby, the lintel panel 3d is closed.
[0016]
In this way, in the shutter storage case opening and closing device according to the present embodiment, the rotating rail 12 rotates upward, reaches the vicinity of the opening 2a of the lintel case 2, and further moves upward to rotate. Since the lintel panels 3 (3a to 3d) can be sequentially opened or closed by the lintel panel lifting / lowering means 26 disposed on the side of the rail 12 that becomes the rotation center, without using an electrical device. The case lower opening can be opened and closed accurately with a simple configuration.
Further, when the shutter curtain 16 stored is lowered, the shutter curtain 16 starts to descend gradually due to its own weight by releasing the winding mechanism and the brake mechanism of the brake system 19. When the shutter curtain 16 is lowered, the seat plate 20 is lowered accordingly, so that the contact between the seat plate 20 and the engagement pin 11 corresponding to the lintel panel 3d is released. 3d is opened. At this time, since the lowering position of the elevating lever 6 is regulated by the arm adjusting bolt 13, the opening operation of the lintel panel 3d stops when it is opened about 90 degrees.
[0017]
Thereafter, similarly, as the shutter curtain 16 descends, the rotating rail 12 rotates downward, so that the lifting lever 6 rotates downward and is opened in the order of the lintel panels 3c, 3b, 3a. The rail 12 is taken out from the lintel case 2. Thereby, the shutter curtain 16 can be lowered.
Thus, in the shutter storage case opening and closing device according to the present embodiment, when the rotating rail 12 is lowered, the lintel panels 3 (3a to 3d) are automatically opened along with this, so that the shutter The curtain 16 can be smoothly lowered.
As mentioned above, although the switchgear of the present invention was explained based on the illustrated embodiment, it is not limited to this, and the composition of each part can be replaced with the thing of arbitrary composition which has the same function.
[0018]
【The invention's effect】
As described above, in the shutter storage case opening and closing device according to the present invention, the lower opening of the shutter storage case is configured to be opened and closed by a plurality of lintel panels, and the lintels are provided for each lintel panel. Panel lifting and lowering means are installed. And the raising / lowering lever which this lintel panel raising / lowering means has operate | moves with rotation operation | movement of a rotation rail, and, thereby, opens and closes a lintel panel. Therefore, it is possible to automatically open and close the plurality of lintel panels in the lower opening of the shutter storage case with a simple configuration without using an electric drive mechanism.
In addition, if the length of the lower opening of the shutter storage case is longer than the length of the rotating rail, the lintel panel installed in the lower opening of the portion where the rotating rail does not reach is attached to the lintel panel. Because it is opened and closed by contact with the lifting lever of the corresponding lintel panel lifting means and the seat plate attached to the lower part of the shutter curtain, regardless of the length of the storage case (ie, the width of the shutter curtain) The lintel panel can be opened and closed reliably.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of an opening / closing device for a shutter storage case according to an embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of a lintel case portion in FIG.
3 is an enlarged front view of the lintel panel lifting / lowering means in FIG. 2. FIG.
FIGS. 4A and 4B are front views showing the interlocked state of the shutter seat plate and the rotating rail, in which FIG. 4A is a state in which the seat plate is slightly raised from the bottom, and FIG. 4B is a state in which the seat plate starts to rise; (C) shows a state where the seat plate is further raised.
FIG. 5 is a front view showing a state in which the rotating rail is rotated to the vicinity of the lintel case.
6 is a front view showing a state in which the rotating rail is further rotated upward from the state of FIG. 5;
7 is a front view showing a state in which the rotating rail is further rotated upward from the state of FIG. 6;
8 is a front view showing a state in which the rotating rail is further rotated from the state shown in FIG. 7;
FIG. 9 is a front view showing a state in which a rotating rail is housed in a lintel case.
10 is an enlarged cross-sectional view taken at a point P1 in FIG.
11 is an enlarged cross-sectional view taken at a point P1 in FIG.
12 is an enlarged cross-sectional view taken at a point P1 in FIG.
13 is an enlarged cross-sectional view at point P1 in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Opening and closing device 2 Crib case 2a Lower opening part 3 (3a-3d) Crib panel 4 Hinge 5 Base 6 Lifting lever 7 Wire (strand body)
8 Locking bracket 9 Bracket 10 Wire guide roller 11 Engagement pin (engagement hanging roller)
12 Rotating rail 13 Arm adjustment bolt (stopper member)
DESCRIPTION OF SYMBOLS 14 Locking piece 15 Shutter storage case 16 Shutter curtain 17 Shutter guide roller 18 Winding drum 19 Winding up and brake system 20 Seat plate 21 Auxiliary arm 22 Moving roller 23 Wire 24 Locking protrusion 25 Stopper 26 Tail panel raising / lowering means 27 Rail cover 30 Ceiling

Claims (6)

A shutter curtain that opens and closes the opening of the building, a lintel case formed at the bottom of the shutter storage case, an upper end supported in the lintel case, and the opening following the raising and lowering of the shutter curtain A shutter device comprising a pivot rail that pivots in a vertical plane of the lintel and a lintel panel that opens and closes as the pivot rail moves.
A plurality of lintel panels that are connected along the longitudinal direction of the lower opening of the lintel case, and are installed in the lower opening of the case via a hinge so as to be opened and closed;
Panel raising and lowering means that is installed for each lintel panel and that opens and closes each lintel panel in conjunction with the rotation of the rotation rail;
The lintel panel lifting / lowering means is attached to the lifting / lowering lever, and is attached to the lifting / lowering lever, a lifting / lowering lever rotatable about a support shaft, a rope connecting the vicinity of the rotating tip of the lifting / lowering lever and the lintel panel. An engagement pin that abuts on the upper side of the rotating rail at the beginning or end of the lowering of the moving rail and sequentially rotates the lifting lever of each lintel panel.
An opening / closing device for a shutter storage case. The elevating lever has a substantially “H” shape, the support shaft is formed in the vicinity of one end of the elevating lever, the cord body is locked in the vicinity of the other end, and the “ 2. The shutter storage case opening and closing device according to claim 1, wherein the engagement pin is attached in the vicinity of the center of the "H" shape. The lintel panel elevating means is configured to rotate the elevating lever when the rotating rail further rotates downward after the rotating rail rotates downward and the lintel panel fully opens. The shutter storage case opening and closing device according to claim 1, further comprising a stopper member for stopping movement. When the length of the lower opening of the shutter storage case is longer than the length of the rotating rail,
When the rotating rail rotates, the lintel panel lifting and lowering means disposed at a portion where the rotating rail does not contact the engaging pin of the lifting lever,
3. The shutter storage case opening and closing device according to claim 1, wherein a seat plate attached to a lowermost part of the shutter curtain is in contact with the engagement pin to rotate the lift lever. When the rotating rail rotates, the lintel panel elevating means arranged at a portion where the rotating rail does not contact the engaging pin of the elevating lever is configured to move the elevating and lowering means when the seat plate is lowered. The shutter storage case opening and closing device according to claim 4, further comprising a stopper member that stops the rotation of the lever. 6. The shutter storage case according to claim 4, wherein the stopper member includes an adjusting unit that adjusts an opening / closing position of the lintel panel by adjusting a length of the rope body. Switchgear.

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