JP2005105541A - Opening/closing body device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To lessen influence of deterioration due to secular change even in a long time use and prevent noise from generating by vibration and impulse. <P>SOLUTION: A magnet is provided in a position covered by a guide means, at the closed side front end part of the shutter curtain of an opening/closing body device. An aluminum plate or the like as an electric conductive means sending induction current when the magnet moves is installed along the guide means. When the magnet moves, induction currents are sent in the aluminum plate so as to stop the currents. Thereby, the shutter curtain movement is braked. The braking force is proportional to the moving speed of the magnet, When the magnet tries to move quickly, a large braking force corresponding to it is brought about. Accordingly, when an opening/closing means such as the shutter curtain or the like is abruptly wound up by a winding drum and is about to collide with a door stop such as a lintel, as a braking force is brought about by the magnet and the conductive body, noises caused by the impulse or the vibration can be regulated. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an opening / closing body device that closes an opening by moving an opening / closing member such as a shutter curtain installed in an opening of a construction / structure including a building such as a building, factory, or warehouse.

Conventionally, opening and closing bodies such as shutter curtains installed at the opening of construction and structures including buildings such as houses, buildings, factories, warehouses, garages, etc., close the opening by moving in the closing direction. is there. Some of these open / close bodies are manually opened and closed, and others are electrically operated. For motors that open and close electrically, by controlling the speed of the opening / closing body when moving and the speed immediately before fully closed and fully opened, the impact sound and vibration sound generated when fully closed and fully opened Occurrence can be suppressed. However, in the case of manually opening and closing, by manually raising the opening and closing body etc., the drainer collides with the door stop or lintel at the upper limit, and the shock and vibration cause `` Gashan '' and `` Batan '' This generates noise such as loud impact sounds and vibration sounds. Therefore, conventionally, as described in Patent Document 1, an impact or vibration is absorbed in the take-up drum by using the stored energy of the shock absorber according to the rising speed of the shutter curtain. The thing provided with the absorber is proposed.
Japanese Utility Model Publication No. 5-3595

  The conventional one has a first shock absorber made of a coil spring fixed at one end to a winding wheel attached to a support shaft in the winding drum and the other end fixed to an inertia weight, and one end fixed to the support shaft. Since the urging force with the second shock absorber made of a coil spring whose other end is fixed to the inertia weight is used, the urging force of the first and second shock ammunition deteriorates due to secular change due to long-term use. However, the stored energy due to the inertia weight is weakened, and it becomes impossible to absorb the impact and vibration, and as a result, the impact sound and the vibration sound may not be suppressed.

  The present invention has been made in view of the above-described points, and provides an opening / closing body device capable of reducing the influence of deterioration due to secular change even when used for a long period of time and suppressing the generation of noise due to vibration or impact. The purpose is to do.

  An opening / closing body device according to a first aspect of the present invention relates to an opening / closing means that operates to open and close an opening, a first member that is interlocked with the operation of the opening / closing means, and the first member. A magnet member is provided on one of the second member and the first member and the second member provided so that the relative positional relationship changes, and an induced current is generated by the magnetic flux of the magnet means on the other. And a brake means for applying a brake during the operation of the opening / closing means.

  Opening and closing means are used to open and close shutter doors and automatic doors that open and close doorways and windows, or internal passages and spaces, etc. in buildings, houses, factories, warehouses, etc. Consists of members. When the opening / closing means is a shutter curtain, for example, it is housed in the upper part of the opening of a building or the like via a take-up drum or the like. Therefore, the shutter curtain is opened by manually lowering it through a lintel or the like. The part can be closed. Conversely, the opening can be opened by manually raising the closed shutter curtain. In addition to this, there is a type in which the opening / closing means is housed in the side portion of the opening and opened and closed by a horizontal pulling method, or is housed in the lower part of the opening and moved in an ascending manner. In such an opening / closing body device, examples of the first member that moves in association with the opening / closing operation of the opening / closing means include a shutter curtain and a winding drum. Examples of the second member whose positional relationship changes with respect to the first member include guide means such as a guide rail and a support shaft that supports the take-up drum. Therefore, any one of these first and second members, for example, a conductor means for providing an induced current when the magnet is moved by providing a magnet at a closed end of the shutter curtain and covered by the guide means. An aluminum plate or the like is provided along the guide means. When the magnet tries to move, an induced current that tries to prevent it flows in the aluminum plate, thereby braking the movement of the shutter curtain. This braking force is in accordance with the moving speed of the magnet. When the magnet tries to move suddenly, a large braking force is generated accordingly. Therefore, when the opening / closing means such as the shutter curtain is suddenly taken up by the take-up drum during the opening operation and a braking force is generated by the magnet and the conductor, the impact is generated. And noise generated by vibrations can be suppressed. Here, the case where the relative positional relationship changes may be a case where one moves and the other does not move, or a case where both move simultaneously. As an example of the case where both move at the same time, when the draining portion provided with the magnet approaches a lintel, a magnet having the opposite polarity attached to the rotating winding wheel near the guide rail approaches. The case where it is configured as such corresponds. Furthermore, when the opening / closing body is operating in the opening direction and is almost fully open, or when it is moving in the closing direction and is in a range close to full closing, that is, when the opening / closing body is in a predetermined state, The relative positional relationship changes so as to approach, and in such a case, it may be effective to suppress the movement of the opening / closing body.

  The opening / closing body device according to a second aspect of the present invention is the opening / closing body device according to the first aspect, wherein the first member is a closing end portion of the opening / closing means, and the second member performs an opening / closing operation of the opening / closing means. 1st magnet means is provided in the location covered by the said guide means of the closing side front-end | tip part of the said opening / closing means as said magnet means, It is a 1st conductor to the said guide means as said conductor means. Means are provided. This uses an opening / closing means such as a shutter curtain in which the opening / closing body device moves along the guide means, and a magnet means is provided at the closing end of the opening / closing means such as the shutter curtain as the first member, The conductor means is provided in the guide means which is the second member.

  The opening / closing body device according to a third aspect of the present invention is the opening / closing body device according to the first or second aspect, wherein the first member is a winding drum means of the opening / closing means, and the second member is the winding drum means. The support shaft means is a second magnet means provided on the support shaft means as the magnet means, and a second conductor means is provided on the winding drum means as the conductor means. In this, the opening / closing body device winds and moves the opening / closing means such as a shutter curtain on the winding drum means, and the magnet means is provided on the support shaft means which is the first member, and the winding which is the second member. The take-up drum means is provided with conductor means.

  According to a fourth aspect of the present invention, in the opening / closing body device of the present invention, in the second aspect, when the opening / closing means is fully opened, the opening / closing means does not contact the vicinity of the end of the opening. Thus, a third magnet means is provided at a place where a repulsive force is applied. This is because a magnet provided at the closing end of the opening / closing means is used to generate a braking force, and a separate magnet is provided in the vicinity of the door, which is near the end of the opening, and the repulsive force of both magnets. Is used to prevent the opening and closing means from coming into contact with the door stop. This makes it difficult for the opening / closing means to come into contact with a door stop or the like when fully open, so that it is difficult for impact sounds and vibrations to be generated.

  According to a fifth aspect of the present invention, there is provided an opening / closing body device comprising opening / closing means that operates to open / close an opening, wherein the opening / closing body apparatus includes magnets provided on both the opening / closing means and other members. The repulsive force is used to prevent the two from contacting each other during the opening / closing operation of the opening / closing means. This uses the repulsive force of the magnet to make it difficult for the opening and closing means to come into contact with other members such as a door stop when fully opened, thereby suppressing the occurrence of impact noise, vibration noise, etc. .

  The opening / closing body device according to a sixth aspect of the present invention is the opening / closing body device according to the fifth aspect, wherein the opening / closing means is provided with a fourth magnet means at a front end portion on the closing side, and the opening / closing means is opened when the opening / closing means is fully opened. The fifth magnet means is provided at a location where a repulsive force is applied to the fourth magnet means so as not to contact the vicinity of the end of the first magnet means. The opening / closing body device uses an opening / closing means such as a shutter curtain, and a magnet is provided at the end of the closing side of the opening / closing means such as the shutter curtain so as to give a repulsive force to the magnet. Is provided near the door stop near the end of the opening. This makes it difficult for the opening / closing means to come into contact with a door stop or the like when fully open, so that it is difficult for impact sounds and vibrations to be generated.

  As described above, according to the present invention, there is an effect that the influence of deterioration due to secular change can be reduced even when used for a long period of time, and the generation of noise due to vibration or impact can be suppressed.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of an opening / closing body device according to the invention will be described in detail with reference to the drawings. In this embodiment, a shutter device will be described as an example of the opening / closing body device. The shutter device is configured to move a shutter curtain formed by connecting a large number of strip-like slats up and down while being guided by guide rails provided on the left and right sides of the opening, and is provided above the building opening. It is housed in a winding state on the take-up drum and is rewound to close the building opening. FIG. 1 is a diagram showing a schematic configuration of a shutter device according to the present invention.

  This shutter device is provided in an opening of a building / structure, and basically includes a shutter case 1, a shutter curtain 2, guide rails 3 and 4, and a winding drum 5. The guide rails 3 and 4 are provided on both ends of the opening of the building so as to be in contact with both ends of the shutter curtain 2, and have a U-shaped guide groove extending from the lintel to the floor surface. It is comprised with the metal member which has. The shutter curtain 2 moves up and down along the guide grooves of the guide rails 3 and 4 to open and close the opening. The winding drum 5 is pivotally supported by a support shaft 51 fixed to both end brackets (not shown) of the shutter case 1 so as to be freely rotatable, and a winding wheel 52 constituting the winding drum 5 and The support shaft 51 between the winding wheel 52 and the brackets at both ends is provided with a take-up ammunition machine 53, 54 that applies a biasing force to the winding wheel 52 in order to wind up the shutter curtain 2. It has a configuration similar to that of the conventional one.

  The shutter device according to this embodiment is different from the conventional one in that, as shown in FIGS. 2 and 3, braking is applied when the shaker curtain 2 is moved by using a magnet, and a sudden movement of the shutter curtain 2 is caused. It is intended to suppress. FIG. 2 is a diagram illustrating an example of a magnet attached to the shutter curtain 2. FIG. 3 is a diagram illustrating a relationship between the magnet and the guide rail in FIG. FIG. 3A shows a case where an aluminum guide rail is used, and FIG. 3B shows a case where an aluminum plate is provided inside the steel guide rail. As is apparent from the figure, the magnets 21 to 24 are provided on both the front and rear sides with respect to the opening planes at both ends of the strip-shaped slats constituting the shutter curtain 2. In FIG. 1, the magnets 21 and 22 are provided at the lower right end of the shutter curtain 2, and the magnets 23 and 34 are provided at the lower left end of the shutter curtain 2. The magnets 21 to 24 use neodymium magnet steel that emits strong magnetic lines of force. On the other hand, the guide rails 3 and 4 are made of aluminum rails made of a conductive material that causes an induced current to flow by the magnetic flux of the magnets 21 to 24.

  In this embodiment, since the magnets 21 to 24 move along the guide rails 3 and 4 according to the opening / closing operation of the shackle curtain 2, an induced current is generated in the aluminum guide rails 3 and 4, thereby Braking is applied when the magnets 21 to 24, that is, the shutter curtains 3 and 4 are opened and closed. That is, in FIGS. 2 and 3, when the N pole of the magnet 21 and the S pole of the magnet 22 are attached to the slat so as to face each other, the surface of the magnet 21 facing the inner wall of the guide rail 4 becomes the S pole. The surface of is an N pole. In this state, if the magnets 21 and 22 try to move upward, the magnetic flux is prevented from decreasing near the guide rail 4 and the lower side facing the south pole of the magnet 21 and the north pole of the magnet 22. Inductive current (eddy current) is generated, thereby generating an attractive force for pulling the magnets 21 and 22. On the other hand, in the vicinity of the upper side of the guide rail 4 facing the S pole of the magnet 21 and the N pole of the magnet 22 by the upward movement, an induced current (vortex current) in the opposite direction that prevents the increase of the magnetic flux on the contrary. ) Is generated, thereby generating a repulsive force to push back the magnets 21 and 22. With such a configuration, braking is applied to the rapid movement of the magnets 21 and 22, that is, the shutter curtain 2 in the vertical direction. The magnitude of this braking depends on the moving speed of the magnets 21, 22, that is, the opening / closing operation speed of the shutter curtain 2. Therefore, in the case of the shutter device having such a configuration, by suppressing the shutter curtain 2 from moving abruptly, the occurrence of vibration or impact is suppressed, and the noise itself is also suppressed.

  FIG. 3A shows the case where aluminum is used for the guide rails 3 and 4. However, when the steel guide rail 4a is used as shown in FIG. 3B, this steel is used. The aluminum plate 4b may be provided along the inner inner wall surface of the guide rail 4a. As a result, the same effect can be obtained.

  FIG. 4 is a diagram showing an example of an embodiment in which the repulsive force of a magnet is used to suppress the occurrence of vibrations and impacts. FIG. 4 is a diagram showing details of the shutter curtain 2 and its door stop portion of FIG. 1, and FIG. 4 (A) is a diagram showing a state not affected by the repulsive force of the magnet, and FIG. () Is a figure which shows the state received to the influence of the repulsive force of a magnet. In FIG. 1, the magnets 41 and 42 are provided at the draining portion at the lower right end of the shutter curtain 2, and the magnets 43 and 44 are provided at the draining portion at the lower left end of the shutter curtain 2. Magnets 45 to 48 having opposite polarities are provided in the door stop portions 61 and 62 on the ceiling so as to face the magnets 41 to 44.

  These magnets 41 to 48 need not have a strong magnetic force like the above-described magnets 21 to 24, but may be magnets having a normal strength. The reason is that since the repulsive force of the magnet is used, the effect can be sufficiently exerted even if it is not as strong as neodymium magnet steel. That is, when the magnets 41 and 42 are sufficiently separated from the magnets 45 and 46 as shown in FIG. 4A, the repulsive force does not work, but as shown in FIG. When 42 and magnets 45 and 46 are sufficiently close to each other, the repulsive force becomes sufficiently large, and magnets 41 and 42 and magnets 45 and 46 are repelled without contacting each other, and the shutter curtain is located at the position shown in the figure. The draining part of 2 will float. Therefore, the draining portion and the door stop portions 61 and 62 are less likely to come into contact with each other, so that impact sounds, vibration sounds, and the like are less likely to occur. Further, since permanent magnets are used for the magnets 41 to 48, deterioration due to secular change is small, and the effect can be made permanent.

  In addition, although the above-mentioned embodiment demonstrated the case where the magnets 41-48 were separately provided in a door stop part and a draining part, instead of providing these magnets 41-48, it may oppose the magnets 21-24. A magnet having the opposite polarity may be provided on the upper end portions of the guide rails 3 and 4. As a result, the magnets 21 to 24 are braked by induced current between the guide rails 3 and 4 made of aluminum, and are provided at the upper ends of the guide rails 3 and 4 when the shutter curtain 2 is wound. The magnet receives a repulsive force and works to avoid a collision between the draining portion and the door stop.

  FIG. 5 is a diagram showing another example of this embodiment. FIG. 5 (A) is a diagram showing the entire configuration of the winding drum 5, FIG. 5 (B) is a diagram showing an enlarged part of FIG. 5 (A), and FIG. 5 (C) is a diagram showing FIG. It is a right side view of (B). In the above-described embodiment, the case where braking is applied by using the induced current generated in the conductor provided on the guide rail by the magnets provided at both ends of the shutter curtain to suppress the sudden movement of the shutter curtain, etc. As described above, in this modified example, an aluminum disk made of a conductive material that causes an induced current to flow in the winding drum 5 is provided, and a strong magnetic force such as neodymium magnet steel is provided adjacent to the aluminum disk. A magnet for generating the above is provided. In this embodiment, as shown in FIG. 5, an aluminum disc 55 is provided at a position adjacent to a winding wheel 52 provided on a support shaft 51 between both end brackets (not shown). A magnet 56 made of neodymium magnetic steel that generates an induced current for the disc 55 is integrally provided on the support shaft 51 via a stay 57 by a fixture such as a screw or a rivet.

  The aluminum disk 55 is attached so as to rotate in the same manner as the winding wheel 52 rotates. On the other hand, the magnet 56 is fixedly provided on the support shaft 51 via a stay 57. Accordingly, when the winding wheel 52 and the aluminum disc 55 are rotated by the raising or lowering of the shutter curtain 2, the relative positional relationship between the magnet 56 and the aluminum disc 55 changes from moment to moment. Similar to the relationship between the magnet and the aluminum plate provided in the guideline, an induced current is induced in the aluminum disc 55, and acts to brake the rotation of the aluminum disc 55. As a result, sudden movement of the shutter curtain 2 is suppressed.

  FIG. 6 is a view showing a modification of the arrangement of the magnets with respect to the aluminum disk shown in FIG. In FIG. 6A, two magnets 56a and 58a are attached to the upper and lower sides of the support shaft 51 via stays 57a and 59a. By using the two magnets 56a and 58a, a higher braking force can be generated than in the case of one.

  In FIG. 6B, two magnets 56b and 58b are attached to the upper side of the support shaft 51 via stays 57b and 59b so as to sandwich the aluminum disc 55 from both sides. At this time, the magnetic poles on the opposing surfaces of the magnets 56b and 58b may be any of NS, NN, and SS. Since the magnetic force of the magnets 56b and 58b is strong, the stays 57b and 59b need to be strong enough not to be easily deformed by the repulsive force or attractive force of both the magnets 56b and 58b, and the stays 57b to the support shaft 51 The attachment of 59b also needs to be performed so as not to be deformed by the repulsive force or attractive force of both magnets 56b and 58b.

  In FIG. 6C, two magnets 56c and 58c are attached to the upper side of the support shaft 51 via a stay 57c formed in a U shape so as to sandwich the aluminum disc 55 from both sides. is there. Since the two magnets 56c and 58c are fixed to both ends of the stay 57c molded into a U-shape, the bending strength of the material of the stay 57c is sufficient for the repulsive force or attractive force of both the magnets 56c and 58c. Can withstand.

  In FIG. 6D, two magnets 56d, 58d and magnets 59d, 60d that sandwich the aluminum disc 55 from both sides are attached to the upper and lower sides of the support shaft 51 via stays 57d, 61d. . By using the four magnets 56d, 58d, 59d, 60d, a higher braking force can be generated. In FIGS. 6A and 6D, the case where the magnets are provided above and below the support shaft 51 has been described. However, the magnets may be provided at four locations on the top, bottom, left, and right when viewed from the axial direction of the support shaft 51. Good. Moreover, although the case where one aluminum disk 55 is described has been described, a plurality of combinations of such aluminum disks and magnets may be provided along the axial direction of the support shaft 51.

  By combining the embodiment of FIG. 1 and the embodiment of FIG. 5, a high braking force can be generated. Moreover, you may apply separately what used the induced current and what used the repulsive force of a magnet, and may combine both. When both are combined, it is possible to facilitate the installation of the magnet by using the magnet provided in the opening / closing means as in the embodiment of FIG. Moreover, although the case where aluminum was used as an electroconductive substance was demonstrated, you may use metals, such as copper other than this. In the above-described embodiment, the case where the entire guide rail is made of a conductive material has been described. However, the conductive material is provided only on a part of the guide rail, for example, near the door stop and / or near the closed end. It may be. In the above-described embodiment, a permanent magnet such as neodymium steel has been described as an example of the magnet. However, any magnet that exhibits a strong magnetic force may be used, or an electromagnet may be used. In the case of using an electromagnet, it may be magnetized after grasping that the relative positional relationship is within a predetermined range. For example, the amount of rotation of the winding unit may be measured, or a switch or sensor may be provided at a predetermined position to detect the position of the opening / closing body.

  In the above-described embodiment, the case where the shutter curtain is drawn out from above by the descending method has been described. However, the present invention can be similarly applied even when the shutter curtain is drawn out by the ascending method. Furthermore, the present invention can be similarly applied even if the shutter-like opening / closing member is extended by a horizontal pulling method or is extended by a horizontal method. Examples of the opening / closing device include a shutter device, a blind device, a roll screen device, a hanging curtain device, a sliding door device, a moving partition device, an awning device, and a waterproof plate device.

It is a figure which shows schematic structure of the shutter apparatus which concerns on this invention. It is a figure which shows an example of the magnet attached to the shutter curtain. It is a figure which shows the relationship between the magnet of FIG. 2, and a guide rail. It is a figure which shows an example of embodiment which suppressed generation | occurrence | production of a vibration, an impact, etc. using the repulsive force of a magnet. It is a figure which shows another Example of this embodiment. It is a figure which shows the modification of arrangement | positioning of the magnet with respect to the aluminum discs of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Shutter case 2 ... Shutter curtain 21-24, 41-48, 56 ... Magnet 25 ... Draining part 3, 4 ... Guide rail 4a ... Steel guide rail 4b ... Aluminum plate 5 ... Winding drum 51 ... Support shaft 52 ... take-up wheels 53, 54 ... take-up ammunition machine 55 ... aluminum discs 56, 56a, 58a, 56b, 58b, 56c, 58c, 56d, 58d, 59d, 60d ... magnets 57, 57a, 59a, 57b, 59b , 57c, 57d, 61d ... Stays 61, 62 ... Door-to-door

Claims (6)

Opening and closing means that operates to open and close the opening;
A first member interlocked with the operation of the opening and closing means;
A second member provided such that a relative positional relationship with respect to the first member changes;
One of the first member and the second member is provided with magnet means, and the other is provided with conductor means for flowing an induced current by the magnetic flux of the magnet means, and braking means for braking when the opening / closing means operates. An opening / closing body device comprising: 2. The first member is a closing end portion of the opening / closing means, the second member is a guide means for guiding an opening / closing operation of the opening / closing means, and the magnet means includes the opening / closing means of the opening / closing means. An opening-and-closing body device, wherein a first magnet means is provided at a location covered by the guide means at a front end portion on a closing side, and the first conductor means is provided on the guide means as the conductor means. 3. The support shaft means according to claim 1, wherein the first member is a take-up drum means of the opening / closing means, the second member is a support shaft means of the take-up drum means, and the magnet means is the support shaft means. The opening / closing body device is characterized in that the second magnet means is provided on the winding drum means as the conductor means. 3. The third magnet means according to claim 2, wherein the third magnet means is provided at a position where a repulsive force is applied to the first magnet means so that the opening / closing means does not contact the vicinity of the end of the opening when the opening / closing means is fully opened. An opening / closing body device characterized by being provided. In an opening / closing body device provided with an opening / closing means that operates to open and close the opening, the two contacts with each other during the opening / closing operation of the opening / closing means using a repulsive force of a magnet provided on both the opening / closing means and the other member. An opening / closing body device characterized in that it does not. 6. The fourth magnet means according to claim 5, wherein a fourth magnet means is provided at a closing end of the opening / closing means so that the opening / closing means does not contact the vicinity of the end of the opening when the opening / closing means is fully opened. An opening / closing body device characterized in that a fifth magnet means is provided at a location where a repulsive force is applied to the above.

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