JP2005126952A - Opening/closing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an opening/closing device simplified in structure. <P>SOLUTION: This opening/closing device 1 is provided with a liftable opening/closing body 7 having an insertion part 6 at a side end part and opening/closing an opening 2. The opening/closing device 1 is provided with a vertically long guide body 3 for guiding the insertion part 6 of the opening/closing body 7. A magnetic body 16 is provided at the lower end part of the insertion part 6 of the opening/closing body 7. A magnet body attracted to the magnetic body 16 when closing the opening 2 is provided in a vertically movable and adjustable manner inside the lower end part of the guide body 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an opening / closing device that can not only properly maintain the closed state of an opening, but also can simplify the structure.

Conventionally, for example, an openable / closable opening / closing body that opens and closes an opening, a vertically long guide body that guides the opening / closing body, an engagement pin that protrudes from the lower end of the opening / closing body, and a lower end of the guide body. An open / close device such as a fireproof screen device is known that includes a hook that is movable and engages with an engagement pin when the opening is closed, and a spring that biases the hook in a predetermined direction (for example, Patent Document 1). reference).
JP 11-114083 A

  However, when the closed state holding means for holding the closed state of the opening is configured with an engagement pin, a hook, a spring, or the like as in the above conventional opening / closing device, the structure may be complicated.

  The present invention has been made in view of these points, and an object of the present invention is to provide an opening / closing device that can not only appropriately maintain the closed state of the opening but also simplify the structure.

  The opening / closing apparatus according to claim 1 is a movable opening / closing body that opens and closes an opening, a guide body that guides the opening / closing body, and a magnetic body provided on one of the opening / closing body and the guide body, And a magnet body that is provided on one of the opening / closing body and the guide body and is attracted to the magnetic body when the opening is closed.

  In addition, by adsorbing the magnet body to the magnetic body when the opening is closed, the closed state of the opening can be appropriately maintained, and the structure can be simplified.

  The switchgear according to a second aspect is the switchgear according to the first aspect, wherein at least one of the magnetic body and the magnet body is movable and adjustable in the moving direction of the switchgear.

  And it is possible to adsorb | suck a magnet body appropriately to a magnetic body by moving and adjusting at least one of a magnetic body and a magnet body in the moving direction of an opening-closing body.

  The opening / closing apparatus according to claim 3 has an insertion portion at a side end, and an openable / closable opening / closing body for opening / closing the opening, a vertically long guide body for guiding the insertion portion of the opening / closing body, A magnetic body provided at a lower end portion of the insertion portion of the opening / closing body, and a magnet body provided to be adjustable in a vertical direction inside the lower end portion of the guide body, and attracted to the magnetic body when the opening portion is closed. Are provided.

  Further, by adsorbing the magnet body to the magnetic body when the opening is closed, not only can the opening state be properly maintained, but also the structure can be simplified, and the magnet body can be By adjusting the movement of the magnetic body, it is possible to appropriately attract the magnetic body to the magnetic body.

  According to the opening and closing device of the first aspect, not only can the closed state of the opening be properly maintained by adsorbing the magnet body to the magnetic body when the opening is closed, but also the structure can be simplified.

  According to the switchgear of the second aspect, the magnet body can be appropriately attracted to the magnetic body by adjusting the movement of at least one of the magnetic body and the magnet body in the moving direction of the open / close body.

  According to the opening and closing device according to claim 3, not only can the closed state of the opening be appropriately maintained by adsorbing the magnet body to the magnetic body when the opening is closed, but also the structure can be simplified. Further, the magnet body can be appropriately attracted to the magnetic body by adjusting the movement of the magnet body in the vertical direction.

  An embodiment of a switchgear according to the present invention will be described with reference to the drawings.

  1 to 4, reference numeral 1 denotes an opening / closing device. The opening / closing device 1 is, for example, a fireproof screen device that closes an opening (for example, a space before an elevator) 2 to prevent fire spread when a fire occurs. .

  The opening / closing device 1 includes a pair of left and right guide bodies (guide rails) 3 that are vertically spaced in the vertical direction and are substantially hollow.

  Between the upper ends of both guide bodies 3, a substantially box-shaped storage case body 4 that is longitudinal in the left-right direction is disposed, and in the storage case body 4, a drum-like shape that incorporates a spring (not shown). Is wound so as to be rotatable about an axis in the left-right direction.

  In addition, the opening / closing device 1 has the insertion portions 6 at the left and right side end portions and is guided by the guide body 3 in the vertical direction, which is the moving direction, with both the insertion portions 6 being inserted into the guide body 3. A substantially planar openable / closable body (screen body with a seat plate) 7 is provided that can be moved up and down along the opening 2 to open and close the opening 2.

  When the opening 2 is closed, the open / close body 7 is lowered by its own weight until the lower end is brought to the floor surface (floor finished surface) 9 which is a contacted portion by rewinding from the winding body 5, and the substantially entire surface becomes a vertical surface. It becomes a substantially flat plate shape along, and the opening 2 is closed. Further, when the opening 2 is opened, the opening / closing body 7 is lifted up by the winding of the winding body 5 until the lower end thereof comes into contact with the housing case body 4, and is substantially entirely cylindrical in the housing case body 4. The opening 2 is opened.

  In addition, although the operator raises the opening / closing body 7 manually, since the spring incorporated in the winding body 5 urges the opening / closing body 7 in the winding direction, the operator can easily raise the opening / closing body 7. Can do.

  Here, the opening / closing body 7 has a substantially planar and flexible opening / closing main body portion 11 having an upper end attached to the outer peripheral surface portion of the wound body 5, and a lower end portion of the opening / closing main body portion 11 along the lower end portion. It has a weight part (seat plate) 12 which is a lower end part of the opening / closing body 7 and which is a left and right longitudinal contact part whose lower surface comes into contact with the floor surface 9 when the opening 2 is closed.

  The openable / closable main body 11 is formed in a substantially rectangular shape with, for example, a non-combustible cloth made of glass cloth, silica cloth, or the like. In addition, the weight portion 12 is formed in, for example, a nonflammable metal material in a longitudinal direction in the left-right direction, and a weight insertion plate portion in which both longitudinal ends of the weight portion 12 are substantially plate-like weight insertion portions. 14 The main body insertion portion 13 and the weight insertion plate portion 14 constitute the insertion portion 6 of the opening / closing body 7 that is inserted into the guide body 3.

  Further, for example, a metal magnetic body 16 is fixed in a protruding manner on the lower end of the insertion portion 6 on both the left and right sides of the opening / closing body 7, that is, on the front surface side that is one surface side of the weight insertion plate portion 14 of the weight portion 12. It is installed. Each magnetic body 16 has, for example, a substantially L-shaped cross section, and has a vertical plate-like mounting plate portion 17 attached to the front surface that is one surface of the weight insertion plate portion 14, and a lower end of the mounting plate portion 17 A horizontal plate-like protruding plate portion 18 protrudes integrally from the portion toward the front.

  On the other hand, each guide body 3 that guides the insertion portion 6 of the opening / closing body 7 when the opening / closing body 7 is lifted / lowered has a U-shaped guide body portion having a U-shaped cross section that opens toward the opening 2 side. 21 and an L-shaped cross section that is integrally projected on the inner surface side of each end portion of the guide body 21 on the opening 2 side and is spaced apart from each other through a predetermined insertion gap 22 and is vertically long. And a pair of front and rear projections 23.

  The guide main body 21 has a pair of front and rear opposing plates 25 which are spaced apart from each other, and ends of the opposing plates 25 on the side opposite to the opening 2 are connected to each other by a connecting plate 26. Each protrusion 23 has a first protrusion plate 27 that protrudes inward from the end of the counter plate 25 of the guide main body 21 on the opening 2 side, and the front end of the first protrusion plate 27. A second protruding plate 28 protrudes toward the opposite opening 2 side.

  The lower end portions of the left and right guide bodies 3 are buried under the floor surface 9 as buried portions 30, and the magnetic body 16 corresponding to the opening portion 2 is closed on the inner surface side of the buried portion 30. An adsorbing magnet body (for example, a permanent magnet) 31 is provided so as to be movable in the vertical direction in a state where the entire magnet body 31 is accommodated.

  Each magnet body 31 is connected to the embedded portion 30 by, for example, mounting screws 34 that are mounting tools inserted into a plurality of vertical holes 33 formed in the opposing plate 25 on the front side of the embedded portion 30 of the guide body 3. It is attached to the opposing plate 25 so that the movement can be adjusted in the vertical direction, that is, the height position can be adjusted with respect to the opposing plate 25 of the guide body 3. And as FIG. 4 shows, each magnet body 31 is being fixed to the appropriate position in which the upper surface is located on the substantially same surface as the floor surface 9 by the movement adjustment of an up-down direction.

  The width dimension of the insertion gap 22 of the guide body 3 is substantially equal to the thickness dimension of the weight insertion plate portion 14 of the weight portion 12 of the opening / closing body 7. The weight insertion plate portion 14 of the weight portion 12 of the opening / closing body 7 is prevented from coming out from the inside of the guide body 3 to the opening portion 2 side due to the engagement between the magnetic body 16 and the protrusion 23 on the front side of the guide body 3. It has become. Further, the main body insertion portion 13 of the open / close main body portion 11 of the open / close body 7 is formed by engaging a retaining means (not shown) such as a retaining bolt or a retaining wire with the front and rear projections 23 of the guide body 3. It does not come out from the inside of the guide body 3 to the opening 2 side.

  Next, the operation and the like of the opening / closing device 1 will be described.

  For example, when a fire breaks out, the opening / closing body 7 is lowered by its own weight smoothly due to the weight of the weight portion 12 and the left and right magnetic bodies 16, and the lower surface of the weight portion 12, which is the lower end of the opening / closing body 7, contacts the floor surface 9. In contact therewith, the opening 2 is closed by the opening / closing main body 11 and the weight 12.

  Further, at the same time that the lower surface of the weight portion 12 of the opening / closing body 7 abuts against the floor surface 9, the lower surface of the protruding plate portion 18 of the magnetic body 16 is located in the embedded portion 30 embedded under the floor surface 9. The upper surface of the magnetic body 31 is attracted to the lower surface of the protruding plate portion 18 of the magnetic body 16.

  Since the left and right magnet bodies 31 on the guide body 3 side stick to the left and right magnetic bodies 16 on the opening / closing body 7 side, the opening / closing body 7 opens and closes even if wind pressure due to hot air or the like that lifts the opening / closing body 7 acts on the opening / closing body 7. The body 7 does not rise, and the weight portion 12 at the lower end of the opening / closing body 7 does not rise from the floor surface 9. Further, the left and right insertion portions 6 of the opening / closing body 7 do not come out of the guide body 3, and the closed state of the opening 2 is maintained.

  As described above, according to the opening / closing device 1, the closed state of the opening 2 can be appropriately set by firmly adsorbing the magnetic body 31 on the guide body 3 side to the magnetic body 16 on the opening / closing body 7 side when the opening 2 is closed. In addition to being able to hold, the structure can be simplified, so that assembly work, maintenance, etc. can be facilitated, the manufacturing cost can be reduced, and the operability of the opening / closing body 7 is also good.

  Further, the magnet body 31 on the guide body 3 side can be moved and adjusted with respect to the guide body 3 in the vertical direction, that is, by adjusting the height position with respect to the guide body 3, the magnet body 31 can be aligned and fixed at an appropriate position. Therefore, the magnet body 31 on the guide body 3 side can be appropriately attracted to the magnetic body 16 on the opening / closing body 7 side, and the opening 2 can be prevented from opening carelessly.

  Note that the magnet body 31 attracted to the magnetic body 16 is not limited to that provided inside the embedded portion 30 below the floor surface 9 of the guide body 3, and as shown in FIG. The thing etc. which were provided in the lower end part on the surface 9 may be sufficient. The magnetic body 16 shown in FIG. 5 includes a vertical plane mounting plate portion 17 attached to the weight insertion plate portion 14, and a horizontal planar protruding plate portion 18 protruding from the upper end portion of the mounting plate portion 17. have.

  Further, the opening / closing device 1 is not limited to the configuration in which the magnetic body 16 is provided in the opening / closing body 7 and the magnet body 31 is provided in the guide body 3. For example, although not shown, the magnetic body 16 is provided in the guide body 3. In addition, the magnet body 31 may be provided in the opening / closing body 7.

  Further, the opening / closing device 1 is not limited to a configuration in which only the magnet body 31 can be adjusted in the vertical direction, which is the moving direction of the opening / closing body 7, and at least one of the magnetic body 16 and the magnet body 31 is an opening / closing body. Any configuration may be used as long as the movement can be adjusted in the moving direction 7.

  Further, the opening / closing device 1 is not limited to the configuration in which the magnetic body 16 and the magnet body 31 are provided on both the left and right sides, and may be a configuration in which the magnetic body 16 and the magnet body 31 are provided on only one of the left and right sides.

  Furthermore, the lower end portion of the opening / closing body 7 (the weight portion 12 as the contact portion) is in contact with the floor surface 9 when the opening 2 is closed, and the lower end portion of the opening / closing body 7 is in contact with the ground. A configuration, a configuration in which the lower end portion of the opening / closing body 7 abuts on a lower frame body between the guide bodies 3, or the like may be used.

  Further, the opening / closing device 1 is not limited to a device that lowers its own weight, and may be a manual type or an electric type that raises and lowers the opening / closing body 7 by driving means such as a motor.

  Further, the magnetic body 16 attracted by the magnet body 31 may be a magnet magnetized in advance.

  Moreover, although the switchgear 1 was demonstrated as a fireproof screen apparatus, another shutter apparatus, a roll screen apparatus, etc. may be sufficient and it does not ask | require the presence or absence of fireproof smoke prevention performance. When the opening / closing device 1 is a shutter device, the opening / closing body is made of an arbitrary material such as a screen material, a slat, a panel, a pipe, a net, or a combination thereof.

It is a perspective view which shows one Embodiment of the switchgear of this invention. It is a front view which shows the principal part of the opening / closing apparatus same as the above. It is a top view sectional view showing the important section of the opening and closing device same as the above. It is IV-IV sectional drawing in FIG. It is sectional drawing which shows the principal part of other embodiment of the switchgear of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening / closing device 2 Opening part 3 Guide body 6 Insertion part 7 Opening / closing body
16 Magnetic material
31 Magnet body

Claims (3)

A movable opening and closing body for opening and closing the opening;
A guiding body for guiding the opening and closing body;
A magnetic body provided on one of the opening and closing body and the guide body;
An opening / closing apparatus comprising: a magnet body that is provided on the other of the opening / closing body and the guide body and is attracted to the magnetic body when the opening is closed. The opening / closing apparatus according to claim 1, wherein at least one of the magnetic body and the magnet body is movable and adjustable in a moving direction of the opening / closing body. An openable / closable opening / closing body having an insertion portion at a side end and opening / closing the opening,
A vertically extending guide body for guiding the insertion portion of the opening and closing body;
A magnetic body provided at a lower end of the insertion part of the opening and closing body;
An opening / closing device comprising: a magnet body that is provided inside the lower end portion of the guide body so as to be movable in the vertical direction and that is attracted to the magnetic body when the opening is closed.

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