JP6074763B2 - sash - Google Patents

Description

  The present invention relates to a sash in which a shoji is placed in a frame body provided in a building opening, and more particularly to a sash that prevents ignition of an upper resin frame that covers an exposed portion on the indoor side of an upper frame when a fire occurs.

  In a sash in which a shoji is housed in a frame body provided in a building opening, heat insulation and design can be improved by covering a room-side exposed surface of a metal frame with a resin frame. An example of such a sash is disclosed in Patent Document 1.

JP 2012-122303 A

  The sash is required to have fire prevention performance that does not easily ignite even when exposed to high temperatures in the event of a fire. The upper resin frame provided on the upper frame is fixed only by locking without being screwed to the upper metal frame in order to enhance the design. For this reason, when exposed to a high temperature in the event of a fire, the upper resin frame softens and eventually falls off.

  When the upper resin frame is locked to the upper metal frame, the upper resin frame is located at the upper part of the frame body, so that it easily receives heat from the flame, and may reach the ignition temperature and ignite before falling off. This is caused by a rapid rise in temperature while the combustion component contained in the resin material remains. On the other hand, if it falls off to the bottom of the frame before the upper resin frame ignites, it becomes difficult to receive the heat from the flame directly, so the combustion components may evaporate before reaching the ignition temperature and remain unignited Becomes higher.

  Therefore, in the event of a fire, it is desirable for the upper resin frame to fall off at an early stage, but the stage at which the upper resin frame falls off the upper metal frame depends on a slight difference in the locked state or the fire. Depending on the situation, etc., it was difficult to reliably control the fall time.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a sash that can appropriately control the drop-off timing of the upper resin frame when a fire occurs.

In order to solve the above-mentioned problems, a sash according to the invention of claim 1 is configured such that a shoji is placed in a frame body formed by framing an upper frame, a lower frame, and left and right vertical frames. In the sash with the upper resin frame on the inside,
The upper resin frame has an inner peripheral surface portion that overlaps with an inner peripheral surface of the upper metal frame, and is locked and fixed to the upper metal frame. A weight member for adding weight to the upper resin frame is provided between the inner peripheral surfaces.

  According to the first aspect of the invention, due to the weight of the weight member, the upper resin frame can be quickly dropped to the lower part of the sash when a fire occurs.

Further, in the sash according to the invention of claim 2, the upper metal frame has an upper inner rail part for guiding the inner shingles and an upper outer rail part for guiding the outer shingles, and the upper resin frame is It is characterized by being provided from the upper inner rail portion to the upper outer rail portion.

  According to the invention which concerns on Claim 2, while making the design property in the area | region between the upper inner rail part and upper and outer rail part of a sliding sash favorable, the fall time and the fall position of the upper resin frame at the time of fire outbreak are appropriate Can be controlled.

  According to the sash according to the present invention, it is possible to prevent the upper resin frame from being ignited or ignited by appropriately controlling the falling timing and the position of the upper resin frame when a fire occurs.

It is a longitudinal cross-sectional view of the sash in this embodiment. It is a cross-sectional view of the sash in this embodiment. It is a bottom view of an upper frame. It is an expanded sectional view of an upper frame. It is an exploded sectional view of an upper frame and an upper resin frame.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view of a sash according to the present embodiment, and FIG. 2 is a transverse sectional view of the sash according to the present embodiment. As shown in each of these drawings, the sash of the present embodiment includes an inner frame 4 and an outer frame 5 in a frame 1 formed by frame- ing an upper frame 10, a lower frame 11, and left and right vertical frames 12, 12. The upper frame 10 is configured as a sash with a shutter that is provided with a storage portion 2 to store the door body 3 and that allows the door body 3 to be pulled out.

  The inner and outer shoji 4 and the outer shoji 5 have a panel body 7 made of a glass plate in a casing 6 in which an upper collar 40 and a lower collar 41 and left and right vertical collars 42 and 42 are assembled in a square shape. It is configured. The lower frame 11 constituting the frame 1 is formed with an inner rail portion 30 that guides the inner shoji 4 in the longitudinal direction and an outer rail portion 31 that guides the outer shoji 5 in the longitudinal direction. Further, the upper frame 10 constituting the frame body 1 includes an upper inner rail portion 10a for guiding the upper side of the inner shoji 4 in the longitudinal direction, and an upper outer rail portion 10b for guiding the upper side of the outer shoji 5 in the longitudinal direction. Is formed. A resin-made angle member 14 is attached to the indoor side end portion of the frame body 1 and extends to the indoor side over four laps.

  The storage section 2 provided in the upper frame 10 includes a winding shaft 20 that holds the door body 3 in a freely rotatable manner, and an opening 21 through which the door body 3 is inserted on the lower side. The door body 3 has a plurality of slats 22 connected in the vertical direction, and a baseboard member 23 extending over substantially the entire width of the door body 3 is provided at the lower end portion. On the outdoor side of the vertical frame 12, guide rail members 13 that guide both end portions of the door body 3 are provided.

  FIG. 3 shows a bottom view of the upper frame 10. In this figure, the outer shoji 5 is arranged on the left side in the figure, and the inner shoji 4 is arranged on the right side in the figure. On the indoor side of the upper inner rail portion 10a of the upper frame 10, an angle member 14 is provided over substantially the entire length.

  In the region between the upper inner rail portion 10a and the upper outer rail portion 10b of the upper frame 10, a windshield plate 32 is provided in the central portion, and an outer edge stopper is provided at the end on the side where the inner impeller 4 is disposed. 34 is provided. Further, in the region between the upper inner rail portion 10a and the upper and outer rail portion 10b of the upper frame 10, the end portion on the side where the shoji 5 is disposed is between the upper inner rail portion 10a and the upper and outer rail portion 10b. The inner limb stopper 33 is provided so as to straddle the region and the region on the indoor side from the upper inner rail portion 10a. The inner child stopper 33 and the outer obstacle stopper 34 are each made of resin and formed in a block shape. When the inner obstacle 4 and the outer obstacle 5 are fully opened, the casing 6 and the frame 1 are brought into contact with each other. It is intended to prevent direct collision.

  An upper resin frame 30 is provided on the side between the upper inner rail portion 10a and the upper and outer rail portions 10b of the upper frame 10 on the side where the shoji 5 is disposed. The upper resin frame 30 is attached so as to cover the inner peripheral surface between the upper inner rail portion 10a and the upper outer rail portion 10b which is exposed to the indoor side in a state in which the outer shoji 5 is closed.

  FIG. 4 shows an enlarged cross-sectional view of the upper frame 10. As shown in this figure, an indoor locking portion 30a that is locked to the base portion of the upper inner rail portion 10a is formed at the indoor end portion of the upper resin frame 30, and the outdoor end portion of the upper resin frame 30 is formed. Is formed with an outdoor locking portion 30b that is locked to the base portion of the upper and outer rail portion 10b. Between the indoor locking part 30a and the outdoor locking part 30b is an inner peripheral surface part 30c that overlaps so as to cover the inner peripheral surface of the upper frame 10, and the inner peripheral surface part 30c is slightly convex downward. It is formed as follows. For this reason, a gap is formed between the inner peripheral surface portion 30 c of the upper resin frame 30 and the inner peripheral surface of the upper frame 10. A metal weight member 31 is provided in the gap.

  As shown in FIG. 3, the weight member 31 is disposed along the longitudinal direction of the upper resin frame 30. FIG. 5 shows an exploded cross-sectional view of the upper frame 10 and the upper resin frame 30. As shown in this figure, the weight member 31 is placed on the upper resin frame 30, and is temporarily fixed with a double-sided tape or the like. The upper resin frame 30 on which the weight member 31 is placed is locked and fixed to the upper frame 10 by the indoor locking portion 30a and the outdoor locking portion 30b. Therefore, the weight member 31 is merely placed on the upper resin frame 30 and is not fixed to the upper frame 10.

  When a fire occurs and the sash with shutter is exposed to a high temperature, the upper resin frame 30 gradually softens, and the locking state by the indoor locking portion 30a and the outdoor locking portion 30b cannot be maintained, and eventually the upper frame 10 take off. At this time, since the weight member 31 is provided on the upper resin frame 30, the drop timing is controlled so that the upper resin frame 30 is removed from the upper frame 10 relatively early when the upper resin frame 30 starts to soften. Can do. For this reason, the weight of the weight member 31 can maintain the locked state of the upper resin frame 30 with respect to the upper frame 10 in a normal state, and the upper resin frame 30 starts to soften. It is necessary to set so that the locked state can be released.

  In the event of a fire, the upper part of the sash is hotter, so if the upper resin frame 30 drops off from the upper frame 10 slowly, the upper resin frame 30 rapidly rises in temperature and reaches the ignition temperature. At this time, since the combustion component contained in the resin material remains in the upper resin frame 30, there is a possibility of igniting as it is. On the other hand, by dropping the upper resin frame 30 from the upper frame 10 at the time of the occurrence of a fire, the upper resin frame 30 is slowly heated at the lower part of the sash, and the combustion components are volatilized before reaching the ignition temperature. Because it can, it can prevent ignition.

  In addition, since the weight is added to the upper resin frame 30 by the weight member 31, the upper resin frame 30 can be dropped as it is near the frame body 1. Thereby, it is possible to prevent the upper resin frame 30 from being ignited by a flame or the like from the outside of the sash by dropping to an unexpected position.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea.

DESCRIPTION OF SYMBOLS 1 Frame body 2 Storage part 3 Door body 4 Inner door 5 Outer door 6 Housing 7 Panel body 10 Upper frame 10a Upper inner rail part 10b Upper outer rail part 11 Lower frame 12 Vertical frame 13 Guide rail member 14 Angle member 20 Winding up Shaft 21 Opening portion 22 Slat 23 Skirting member 30 Upper resin frame 30a Indoor locking portion 30b Outdoor locking portion 30c Inner peripheral surface portion 31 Weight member 40 Upper rod 41 Lower rod 42 Vertical rod

Claims (2)

The inner frame and the outer frame are housed in a frame made up of an upper frame, a lower frame, and left and right vertical frames, and an upper resin frame is disposed on the indoor side of the upper metal frame. In the sash
The upper resin frame has an inner peripheral surface portion that overlaps with an inner peripheral surface of the upper metal frame, and is locked and fixed to the upper metal frame, so that the inner peripheral surface portion of the upper resin frame and the upper metal frame A weight member for adding weight to the upper resin frame is provided between the inner peripheral surfaces, and the upper resin frame on which the weight member is provided is an area exposed to the indoor side in a state where the outer shoji is closed. A sash that is provided only in the sash.   The upper metal frame has an upper inner rail portion that guides the inner shoji and an upper outer rail portion that guides the outer shoji, and the upper resin frame is provided from the upper inner rail portion to the upper outer rail portion. The sash of Claim 1 characterized by the above-mentioned.

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