JP5971514B2 - Shutter device - Google Patents

Description

  The present invention relates to a shutter device having a system capable of winding a shutter curtain around a winding body or rolling down the shutter curtain from the winding body.

  Conventionally, a shutter curtain that extends in the left-right direction and can wind up a plurality of slats arranged side by side in the up-down direction, a winder that winds and unwinds the shutter curtain, and a drive mechanism that rotates the winder (Patent Documents 1 and 2).

  By the way, Patent Documents 1 and 2 rotate each slat with the shutter curtain being rolled down to create an open state in which there is a gap between the slats and a closed state in which there is no gap between the slats. be able to. These shutter devices have a mechanism for engaging and rotating each slat as necessary, so that the slat can be opened and closed even when the shutter curtain is being rolled up. For this reason, when the slat is not opened or closed such as when the shutter curtain is wound or unwound, the slat rotates freely as it is. Therefore, in order to maintain the closed state of each slat, a spring that constantly biases in the closing direction is attached.

JP 2005-61138 A JP 2008-8038 A

  However, energizing with a spring requires at least as many springs as the number of slats as parts, and a process for attaching the springs to each slat is also essential, which is costly.

  The present invention has been made in view of the above circumstances, and it is an object to be solved to provide a shutter device capable of reducing the number of parts and the number of assembling steps and maintaining the slats in a closed state.

The structural feature of the invention according to claim 1 for solving the above-described problem is that a plurality of slats extending in the left-right direction and having a rotation shaft extending in the left-right direction can be wound up in parallel. A shutter curtain, a winding body that winds up the shutter curtain with rotation in one direction, and winds down the shutter curtain with rotation in the reverse direction, a drive mechanism that rotates the winding body, In a shutter device having a slat opening / closing mechanism for rotating and controlling the slats,
The slats, the slats to each other above and below and are lower side from the upright state is rotated outwardly open state abutting positioned vertically, the pivots in the opposite direction closed state is substantially the upright And when located in the vicinity of the closed state, the position of the center of gravity is located below the rotating shaft and outside ,
The shutter curtain has a resin cap attached to both left and right ends of the slat and moving integrally with the slat;
The resin cap is arranged so as to contact the resin cap attached to the slat prior to contacting the slat adjacent in the vertical direction when the slat is closed .

The feature in construction of the invention according to claim 2, in claim 1, before Symbol resin cap is movable relative to the vertical direction while maintaining a state in which the front Symbol resin cap to each other in contact,
When the shutter curtain closes, the tip of the shutter curtain comes into contact with the lower end of the opening and the distance between the slats is shortened, so that the slats come into contact with each other to reach a completely closed state. .

According to a third aspect of the present invention, in the first or second aspect of the invention, the shutter curtain is a linear body comprising a plurality of connecting members that are respectively attached to the left and right ends of each slat and connected in series. Have
The rotation shaft rotates in conjunction with the rotation of the slat, is positioned at both left and right ends of the slat, and is pivotally supported by the connecting member.
The connecting member and the rotation shaft include a protrusion and a rotation stopper that cause interference so as to restrict further rotation in the opposite direction when the slat is in the upright state due to relative rotation of both. It has a combination with.

Complete fully closed is taken down winding shutter curtain, the slats are not only narrow the spacing between the slats in an upright state, with another slat slats are upper and lower ends of the further slats upright positioned vertically It is a state in which the slat cannot rotate by engaging or abutting.

  In the invention according to claim 1, since the slat is in an upright state and the center of gravity position of the slat is located below and outside the rotation shaft, the moment generated in the slat due to the shift of the center of gravity position to the outside. Thus, the center of gravity is always urged in the direction in which the center of gravity tends to move below the rotation axis, that is, the closing direction in which the lower end of the slat located below the center of gravity moves inward. According to the first aspect of the invention, since the slat is always urged in the closing direction, the spring is not necessary and the number of parts can be reduced. And the process of attaching a spring is not necessary, and the number of assembling steps can be reduced. Furthermore, the weight of the shutter curtain can be reduced by the amount of the spring.

Moreover, in the invention which concerns on Claim 1 , since it can restrict | limit the movement of the lower end which tries to move inside by the dead weight of a slat by contact | abutting between the slats located up and down, it can maintain an upright state of a slat. it can. Further, as described above, in the upright state, it is biased in the closing direction, so that it is possible to prevent the slats from being fluttered when the slats are not operated during winding or unwinding.

  In the invention according to claim 3, the rotation shaft is configured to move in conjunction with the rotation of the slat, and the protrusion that cannot move in the closing direction beyond the upright state between the rotation shaft and the connecting member. The rotation of the rotation shaft is restricted by providing a portion and a rotation stopper. Therefore, since the rotation of the rotating shaft is restricted, the turning of the interlocking slat is restricted, and the slat can be prevented from turning in the closing direction beyond the upright state.

Furthermore, the invention according to claim 1 is configured such that when the slats rotate and reach an upright state, a resin cap, which is a resin member, contacts before the slats contact each other. Slats are often made of metal in consideration of improvement in rigidity and crime prevention. For this reason, when the slat moves from the open state to the closed state, a relatively loud contact noise is generated when the slats come into contact with each other. The hit sound caused by can be reduced. Then, the slats can be closed while the resin caps are kept in contact with each other.

It is a front view of the shutter device according to the present embodiment. It is explanatory drawing which looked at a part of shutter curtain of the shutter apparatus which concerns on this embodiment from the back surface. Schematic cross section showing a relationship between a slat constituting a shutter curtain of the shutter device according to the present embodiment and a resin cap (boss portion) (a state where a linear body extends and a gap is formed between adjacent slats). FIG. Schematic cross section showing a relationship between a slat constituting a shutter curtain of the shutter device according to the present embodiment and a resin cap (boss portion) (a state where a linear body is contracted and adjacent slats are fitted) FIG. It is a schematic bottom view which shows the mode of joining of the boss | hub part and link in this embodiment. Relationship between slats constituting the shutter curtain of the shutter device according to the present embodiment and a resin cap (boss portion) (a linear body extends, a gap is formed between adjacent slats, and abuts between adjacent slats. It is the schematic sectional drawing which showed the state where rotation was restrict | limited. It is a schematic back view (a) which shows the mode of joining of the boss | hub part and link in this embodiment, and AA sectional drawing of (a). It is a schematic sectional drawing explaining the positional relationship of the resin cap of this embodiment, and a slat.

  Embodiments of the present invention will be specifically described below with reference to the drawings. In order to avoid complication, some hatching may be omitted in the drawings. FIG. 1 schematically shows a front view of a shutter device installed on a structure so as to open and close an opening of the structure such as a building. The shutter device includes a shutter curtain 21 formed by juxtaposing a plurality of slats 1 along the vertical direction, a winding body 22 that winds up the shutter curtain 21, and main elements of a drive mechanism that rotates the winding body 22. And a storage body 24 that rotatably holds the winding body 22 and stores the slats 1, and two guide rails 25 provided on both sides of the shutter curtain 21. . The shutter device is provided with a control device (not shown) for controlling the motor 23. When the operation switch (not shown) provided in the control device is operated to drive the motor 23 and the winding body 22 rotates in one direction, the shutter curtain 21 is wound around the winding body 22. When the motor 23 is moved backward by the switch and the winding body 22 rotates in the reverse direction, the shutter curtain 21 wound around the winding body 22 is unwound. The guide rail 25 guides the elevation of the end of the shutter curtain 21. The slat 1 extends between the two guide rails 25 along the left-right direction (arrow X direction). FIG. 1 is a schematic diagram only, and the number of slats 1 is not limited to FIG. As shown in FIG. 1, chain-like linear bodies 26 are respectively provided on the left and right sides of the shutter curtain 21. The linear body 26 connects end portions of the slats 1 adjacent to each other in the vertical direction (arrow Y direction) of the shutter device, and is extendable along the vertical direction.

  FIG. 2 shows the back surface (inside) of the shutter curtain 21. The shutter curtain 21 includes a slat 1, a resin cap 3 attached to the left and right ends of each slat 1, and links (connecting members) 4 attached to the left and right ends of each slat 1 via the resin cap 3. Is provided. A linear body 26 is formed by connecting the links 4 in series. The linear body 26 can expand and contract by a certain length in the series direction.

  As shown in FIG. 3, the slat 1 has an arc shape that gradually protrudes outward toward the center in the vertical direction. When the slat 1 is in an upright state, the center of gravity 10 of the slat 1 is positioned below the rotation shaft (the boss portion 32 of the resin cap 3) positioned above the slat 1 and positioned outside. When the shutter curtain 21 is rolled down to the end, the slats 1 are fitted with the linear body 26 being contracted and the distance between the vertically adjacent slats 1 being contracted. When the shutter curtain 21 is wound up, the linear body 26 is first extended, and the distance between the slats adjacent in the vertical direction is increased accordingly, and the fitting therebetween is released. Thus, the structure of the lower part 11 of the slat 1 has a shape in which the end portion 11a is bent horizontally so as to be fitted between the slats 1 adjacent in the vertical direction. The structure of the upper part 12 of the slat 1 has a shape that gently swells inward. When the upper and lower slats 1 are fitted to each other, the lower surface 11 of the slat 1 comes into contact with the outer surface 12a of the upper portion 12 of the slat 1, and the outer surface 12a shrinks as the linear body 26 contracts. The top and bottom positions will be narrowed along the shape. As shown in FIG. 4, the slat 1 abuts on an upper 12 flat portion 12 b of the slat 1 in which the lower end 11 a is located below. Further, the upper part 12 abuts on a horizontal projecting part 13 projecting inwardly located above the lower part 11 of the slat 1 located above. The upper and lower ends of the slats 1 that are formed by fitting between adjacent slats 1 have a substantially triangular shape, so that the slats 1 are firmly fitted with no backlash.

  The shutter device of the present embodiment is in a state where the shutter curtain 21 is rolled down (FIG. 3: a state at the moment when the tip of the shutter curtain 21 reaches under the opening when being rolled down. The linear body 26 is fully extended. The slats 1 are rotated for each slat and can be operated from the closed state to the open state. When the shutter curtain 21 is further rolled down, the linear body 26 is contracted because the tip of the shutter curtain 21 is in contact with the bottom of the opening. As a result, the distance between the slats 1 is also reduced.

  As shown in FIG. 5, the slat 1 is pivotally supported by the link 4 via the resin cap 3, and rotates relative to the link 4 with the boss portion 32 of the resin cap 3 as a rotation axis. The closed state is a state in which the slat 1 is upright, and the open state is a state in which the lower end of the slat 1 in the upright state is stopped at a predetermined angle moved outward. The slat 1 can be configured to be capable of stopping rotation at various angles or can be configured to be able to be stopped at several predetermined angles. The slat 1 is rotated at any time by another opening / closing mechanism (not shown). For example, as shown in FIG. 2, the locking pin 34 of the slat 1 is locked by a control plate (not shown) provided in the guide rail 25. Then, when the winding operation is performed by rotating the winding body 22 by the motor 23, the shutter curtain 21 rises, and the slat 1 rotates around the locking pin 34.

  In the shutter device according to the present embodiment, when the linear body 26 is fully extended during winding or unwinding, as shown in FIG. The slat 1 can maintain an upright state by contacting.

  As shown in FIG. 7, the link 4 includes a long hole 41, an engagement hole 42 into which the pin 33 is inserted, a long hole insertion portion 43 to be inserted into the long hole 41, and a wall 44. The long hole 41 is located above the link 4 and has an elongated shape in the vertical direction. A pin 33 extending in the left-right direction is inserted into the engagement hole 42. The long hole insertion portion 43 protrudes outward in the left-right direction, and is inserted into the long hole 41 of another link 4 positioned below from the inner side in the left-right direction. The wall 44 has an outer wall 441 located at the center and outside of the link 4 in the vertical direction, and an inner wall 442 located inside. Each of the walls 44 protrudes toward the slat 1 side. The resin cap 3 includes a main body portion 31 that engages with one of both end portions of the slat 1 and a boss portion 32 that protrudes from the main body portion 31 toward the outer side in the left-right direction (link 4 side). A pin 33 is inserted into the boss portion 32 from the link 4 side on the axis. The end of the pin 33 on the link 4 side is inserted into the engagement hole 42 of the link 4. The end of the slat 1 is fixed to the main body 31 of the resin cap 3. The resin cap 3 is pivotally supported by the link 4 at the boss portion 32. Therefore, the slat 1 is pivotally supported with respect to the link 4 around the boss portion 32 (pin 33) of the resin cap 3 as a rotation center. The boss 32 has a protrusion 321 that protrudes outward in the diameter increasing direction at the end on the link 4 side. The protruding portion 321 abuts on the upper side of the outer wall 441 of the link 4 in a direction in which the slat 1 is upright in a direction of turning from the open state to the closed state, and restricts further rotation. As a result, the lower end of the upright slat 1 is restricted from moving further inward. Conversely, the movement of the lower end of the slat 1 to the outside is not restricted.

  As shown in FIG. 8, the main body portion 31 of the resin cap 3 has a resin lower portion 311 that slightly protrudes downward from the end portion 11 a of the slat 1, and further, the upper portion from the flat portion 12 b of the slat 1. It has a resin upper portion 312 protruding slightly upward. In FIG. 8, the slats 1 represented by the cross section are indicated by diagonal lines indicating the cross section so that the members can be easily identified. When the slats 1 are in an upright state, the main body portions 31 of the resin caps 3 positioned above and below abut against each other before the slats 1. The shapes of the resin lower portion 311 and the resin upper portion 312 do not protrude so as to obstruct the fitting between the slats 1 and do not obstruct until the slats 1 are brought into contact with each other after being brought into contact with each other. It should be noted that even if only one of the resin upper 312 and the resin lower 311 is formed, the relationship may be such that the resin abuts before the slat 1.

  According to the shutter device of the present embodiment, the center of gravity of the slat 1 in the upright state is positioned outside and below the rotation axis, so that the center of gravity always tries to move below the rotation axis due to the moment due to its own weight. . Therefore, since the lower end of the slat located below the center of gravity moves inward, the slat is always urged in the closing direction. A spring or the like that constantly biases the slat 1 in one direction is not attached to the one shutter device of the present embodiment. Therefore, the number of parts such as springs can be reduced, and the number of assembly steps for attaching the springs can be reduced.

  Moreover, the slat 1 can maintain the upright state of the slat 1 by having at least one of the following configurations (1) and (2). (1) The upper and lower slats contact each other. (2) The wall 44 of the link 4 comes into contact with the protruding portion 321 of the boss portion 32 of the resin cap 3.

  In addition, since the resin cap 3 abuts before the slats 1, the hit sound between the slats 1 can be reduced.

(Other embodiments)
The preferred embodiment of the present invention has been described above, but the present invention is not limited to the above embodiment. For example, the slat 1 is described as having a solid shape, but a slat having a hollow shape may be employed.

1: Slat, 10: Center of gravity, 11: Upper part, 11a: End part, 12: Lower part,
12a: outer surface, 12b: flat part, 13: horizontal protrusion part,
21: Shutter curtain, 22: Winding body, 23: Motor, 24: Storage body,
25: Guide rail, 26: Linear body,
3: Resin cap, 31: Main body, 311: Lower resin, 312: Upper resin,
32: Boss part, 321: Projection part, 33: Pin, 34: Locking pin,
4: Link, 41: Long hole, 42: Engagement hole, 43: Slot insertion part, 44: Wall,
441: outer wall, 442 inner wall.

Claims (3)

A retractable shutter curtain in which a plurality of slats extending in the left-right direction and having a pivot shaft extending in the left-right direction are arranged side by side in the up-down direction, and the shutter curtain is wound up by rotating in one direction and reversed In a shutter device, comprising: a winding body that winds down the shutter curtain in accordance with rotation in a direction; a drive mechanism that rotates the winding body; and a slat opening / closing mechanism that rotates and controls each of the plurality of slats. ,
The slats, the slats to each other above and below and are lower side from the upright state is rotated outwardly open state abutting positioned vertically, the pivots in the opposite direction closed state is substantially the upright And when located in the vicinity of the closed state, the position of the center of gravity is located below the rotating shaft and outside ,
The shutter curtain has a resin cap attached to both left and right ends of the slat and moving integrally with the slat;
The shutter device , wherein the resin cap is disposed so as to abut on the resin cap attached to the slat prior to abutting the vertically adjacent slat when the slat is closed . Before SL resin cap is movable relative to the vertical direction while maintaining a state in which the front Symbol resin cap to each other in contact,
The slats claim 1, wherein the slats each other by a distance shrinks between said tip of the shutter curtain in contact with the lower end of the opening slats between when the shutter curtain is closed reaches the fully closed state abuts The shutter device according to 1. The shutter curtain has a linear body composed of a plurality of connecting members attached to the left and right ends of each slat and connected in series,
The rotation shaft rotates in conjunction with the rotation of the slat, is positioned at both left and right ends of the slat, and is pivotally supported by the connecting member.
The connecting member and the rotation shaft include a protrusion and a rotation stopper that cause interference so as to restrict further rotation in the opposite direction when the slat is in the upright state due to relative rotation of both. The shutter device according to claim 1, wherein the shutter device has a combination.

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