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JP-2026074743-A - Mullion structure and construction method of mullion structure

JP2026074743AJP 2026074743 AJP2026074743 AJP 2026074743AJP-2026074743-A

Abstract

[Problem] To provide a mullion structure that can reduce the size in the visible direction. [Solution] The mullion structure 30 comprises a frame 2, a glass panel 4 disposed within the frame 2, a mullion 3 extending vertically and positioned to the side of the glass panel 4, formed to protrude further outward X1 than the glass panel 4 in the depth direction, and connecting members 61 and 62 connecting the upper and lower ends of the frame 2 and the mullion 3. The connecting members 61 and 62 have frame-side fixing parts 612 and 622 connected to the frame 2, and mullion-side fixing parts 611 and 621 fastened to the upper and lower ends of the mullion 3 by fastening members 611a and 621a. The fastening members 611a and 621a, which are fastened to the upper and lower ends of the mullion 3 and the mullion-side fixing parts 611 and 621 in a loosened state, can be tightened from the front of the outdoor side X1. [Selection Diagram] Figure 21

Inventors

  • 水本 義則
  • 石井 大佳之
  • 吉田 誠
  • ▲節▼ 世名

Assignees

  • 株式会社LIXIL

Dates

Publication Date
20260507
Application Date
20241021

Claims (6)

  1. Frame and, A glass panel placed inside the aforementioned frame, A mullion that extends in the vertical direction and is positioned to the side of the glass panel, and is formed to protrude outward from the glass panel in the depth direction, A first connecting member that connects the frame and the upper end of the mullion, A mullion structure comprising a second connecting member that connects the frame and the lower end of the mullion, The first connecting member has a first frame-side fixing portion connected to the frame and a first mullion-side fixing portion fastened to the upper end of the mullion by a first fastening member. With the first frame-side fixing portion connected to the frame and the glass panel positioned within the frame, the first fastening member, which is loosely fastened to the upper end of the mullion and the first mullion-side fixing portion, is configured to be tightened from the front on the exterior side. The second connecting member has a second frame-side fixing portion connected to the frame and a second mullion-side fixing portion fastened to the lower end of the mullion by a second fastening member. A mullion structure configured such that, when the second frame-side fixing portion and the frame are connected and the glass panel is positioned inside the frame, the second fastening member, which is fastened to the lower end of the mullion and the second mullion-side fixing portion in a loosened state, can be tightened from the front on the outdoor side.
  2. The glass panel comprises two of the aforementioned glass panels, The two glass panels are arranged side by side within the frame at a predetermined distance in the visible direction. The mullion structure according to claim 1, wherein the mullion is positioned to the side of the two glass panels and between the two glass panels.
  3. The first vertical fixing portion and the second vertical fixing portion are each formed in a plate shape extending in the visible direction, The first fastening member is configured to have a first shaft portion extending in the depth direction and a first head portion positioned at the outdoor end of the first shaft portion, the first shaft portion passing through the visible surface of the upper end of the mullion and the first mullion-side fixing portion, and the first head portion positioned on the outdoor side of the first mullion-side fixing portion, and can be tightened by rotating the first head portion from the outdoor front. The mullion structure according to claim 1 or 2, wherein the second fastening member comprises a second shaft portion extending in the depth direction and a second head portion positioned at the outdoor end of the second shaft portion, the second shaft portion passing through the visible surface of the lower end of the mullion and the second mullion-side fixing portion, the second head portion positioned on the outdoor side of the second mullion-side fixing portion, and the mullion structure according to claim 1 or 2, which can be fastened by rotating the second head portion from the outdoor front.
  4. The mullion comprises a mullion body having an indoor portion that extends vertically and is positioned on the indoor side of the glass panel, and a portion that extends vertically and extends from the indoor portion through the side of the glass panel to the outdoor side in the depth direction. The upper end of the portion extending in the depth direction is formed by cutting out a section to avoid the portion fastened by the first fastening member. The mullion structure according to claim 1 or 2, wherein the lower end in the vertical direction of the portion extending in the projection direction is formed by cutting out a notch to avoid the portion fastened by the second fastening member.
  5. A first reinforcing member connects the upper end of the portion extending in the projection direction and the first connecting member, The mullion structure according to claim 4, further comprising a second reinforcing member connecting the lower end of the portion extending in the projection direction and the second connecting member.
  6. Frame and, A glass panel placed inside the aforementioned frame, A mullion that extends in the vertical direction and is positioned to the side of the glass panel, and is formed to protrude outward from the glass panel in the depth direction, A first connecting member that connects the frame and the upper end of the mullion, A method for constructing a mullion structure comprising a second connecting member that connects the frame and the lower end of the mullion, The first connecting member has a first frame-side fixing portion connected to the frame and a first mullion-side fixing portion fastened to the upper end of the mullion by a first fastening member. The second connecting member has a second frame-side fixing portion connected to the frame and a second mullion-side fixing portion fastened to the lower end of the mullion by a second fastening member. A mullion connection step is to fasten the upper end of the mullion to the first mullion-side fixing portion of the first connecting member connected to the frame by a first fastening member, and to fasten the lower end of the mullion to the second mullion-side fixing portion of the second connecting member connected to the frame by a second fastening member, A fastening member loosening step is performed, in which the first fastening member that fastens the upper end of the mullion and the first mullion-side fixing portion is loosened from the outdoor front, and the second fastening member that fastens the lower end of the mullion and the second mullion-side fixing portion is loosened from the outdoor front, A mullion tilting step in which the mullion is tilted to one side in the visible direction, A glass panel placement step involves arranging the glass panel on the other side of the mullion in the visible direction within the frame, A process of returning the mullion from the tilted state to the state before tilting, A method for constructing a mullion structure, comprising: a fastening member tightening step, in a state in which the first frame-side fixing portion is connected to the frame and the second frame-side fixing portion is connected to the frame and the glass panel is arranged inside the frame, the first fastening member, which is loosely fastened to the upper end of the mullion and the first mullion-side fixing portion, is tightened from the front on the outdoor side, and the second fastening member, which is loosely fastened to the lower end of the mullion and the second mullion-side fixing portion, is tightened from the front on the outdoor side.

Description

This disclosure relates to mullion structures and methods for constructing mullion structures. Conventionally, a mullion structure is known in which mullions are arranged on the left-right sides of a glass panel installed within a frame (see, for example, Patent Document 1). Recently, there has been a desire to reduce the visible size of the mullion structure to make it slimmer. Japanese Unexamined Patent Publication No. 62-107092 This is a perspective view of the door/window assembly of the embodiment, seen from the outside.This is a cross-sectional view taken along line A-A in Figure 1.This is a cross-sectional view of the mullion structure of the embodiment, taken along line B-B in Figure 1.This is a perspective view showing the connection structure at the upper end of the mullion.Figure 4 is a perspective view showing the connection structure on the upper end side of the mullion with the outdoor cover and trim member removed.Figure 5 is a perspective view showing the connection structure at the upper end of the mullion with the heat-insulating resin structure and the outer metal frame member removed.Figure 7 is a perspective view showing the connection structure at the upper end of the mullion with the glass panel and upper reinforcing member removed.This perspective view shows the upper end of the mullion body, as seen from the front on the exterior side, being secured to the upper connecting member by tightening a screw visible through the gap between the two glass panels, after loosening it.This is a perspective view showing the connection structure at the lower end of the mullion.Figure 9 is a perspective view showing the connection structure at the lower end of the mullion with the outdoor cover and trim member removed.Figure 10 is a perspective view showing the connection structure at the lower end of the mullion with the heat-insulating resin structure and the outer metal frame member removed.Figure 11 is a perspective view showing the connection structure at the lower end of the mullion with the glass panel and lower reinforcing member removed.This perspective view shows the lower end of the mullion body, as seen from the front on the exterior side, being fixed to the lower connecting member by tightening a screw visible through the gap between the two glass panels, after loosening it.This diagram shows the construction procedure for attaching a mullion to a frame, and is a perspective view showing the state in which the upper connecting member is moved to the upper frame side and connected to the upper frame, and the state in which the mullion body is attached to the upper connecting member connected to the upper frame.This diagram shows the construction procedure for attaching a mullion to a frame, and is a perspective view showing the mullion body with the upper connecting member attached to the upper frame.This diagram shows the construction procedure for attaching a mullion to a frame, and is a perspective view showing the state in which the lower connecting member is moved to the lower frame side and connected to the lower frame, and the state in which the mullion body is attached to the lower connecting member that has been connected to the lower frame.This diagram shows the construction procedure for attaching a mullion to a frame, and is a perspective view showing the mullion body with the lower connecting member attached to the lower frame.This diagram shows the construction procedure for attaching a mullion to a frame, specifically the procedure for tilting the mullion body to one side in the left-right direction.This is a perspective view showing the state shown in Figure 18, with the glass panel positioned on the other side of the mullion body in the left-right direction at the upper end of the mullion body.This is a perspective view showing the state shown in Figure 18, with the glass panel positioned on the other side of the mullion body in the left-right direction at the lower end of the mullion body.This diagram shows the construction procedure for attaching a mullion to a frame, specifically the procedure for tilting the mullion body to the other side in the left-right direction.This is a perspective view showing the state shown in Figure 21, with the glass panel positioned on one side of the mullion body in the left-right direction at the upper end of the mullion body.This is a perspective view showing the state shown in Figure 21, with the glass panel positioned on the other side of the mullion body in the left-right direction at the lower end of the mullion body.This diagram shows the procedure for tightening the screws after returning the mullion body, as shown in Figure 21, from a state where it was tilted to the other side in the left-right direction to its original state.This diagram shows the screws visible through the gap between the two glass panels when viewed from the outside, with glass panels positioned on both the left and right outer sides of the mullion body. T