JPH0627476B2 - Lower frame of folding shutter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a folding shutter that is installed and used in an opening inside and outside a building, and particularly to a lower frame thereof.

[Conventional technology]

As a lower frame of this type of folding shutter, for example, Japanese Patent Laid-Open No.
No. 3-23138 is known.

According to this proposal, the lower frame is configured as a series of integrated dustproof walls that are curved to the back side and the front side on the front and rear sides of the shutter, and have a sloped rising shape. It is designed to be used by exposing the lower horizontal habit of the inner lower side formed by double cutting with the dustproof wall on the back side.

[Problems to be Solved by the Invention]

However, in this case, the horizontal frame double-formed by partially removing the dustproof wall is exposed and used in this case. Moreover, the horizontal habit except for the cutout portion is a structural waste portion that is never used and leaves a problem in resource utilization.

The present invention has been made in view of the above circumstances, and the problem to be solved is a folding shutter that prevents resource intrusion while preventing dust from entering, and also allows wheelchairs, trolleys, and the like to pass therethrough. It is to provide the bottom frame.

[Means for Solving the Problems]

According to the present invention, the lower frame is made up of three first to third lower frame members that share a predetermined portion on the front side and the rear side, respectively, while the fixed connection of these lower frame members is pointed out. The present invention is carried out by means of existing embedded connecting fittings, that is, according to the present invention, embedded connecting fittings embedded in a longitudinally scattered manner and fixed in an erected state between these embedded connecting fittings. A first bottom frame member having a first to a third bottom frame member connected to each other, and the first bottom frame member has a predetermined length having a dust-proof wall that is inclined and rises from the floor surface to the rear surface side on the shutter front side; Has a dustproof wall that is inclined and rises from the floor surface to the front surface on the rear side of the shutter and is shorter than the first lower frame member, and the third lower frame member is substantially flush with the floor surface on the rear side of the shutter. Of the first and second lower frame members having one horizontal wall Is obtained by the means of the problem solution as the gist of and invention this relates to the lower frame of the folding shutter characterized by comprising a length corresponding to the difference between the.

〔Example〕

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in more detail with reference to the drawings showing the following embodiments. 1 is a folding shutter in which a shutter panel 6 is closed and arranged in a series and is opened and folded in a superimposed manner. 2 is an opening of the folding shutter 1. Frame 3 to 5
Is an upper frame, a lower frame, and a vertical frame which form the opening frame 2, respectively, 10 is a folded portion of the opening frame 2, 11 is a traveling frame having a shutter panel 6 in a cantilevered manner, and 12 is traveling with the shutter panel 6. The hinge connection part of the frame 11, 13 is an upper hanging door wheel of the traveling frame 11, 14 is a lower guide roller of the traveling frame 11, and 15 is freely rotatable between the upper and lower ends of the rear shutter panel 6 adjacent to the upper and lower ends of the traveling frame 11. A link that connects to
Reference numeral 16 indicates a building floor surface.

In the folding shutter 1 of this example, due to the relationship between the traveling frame 11, the hinge connecting portion 12 and the link 15, the shutter panels 6 are adjacent to each other by the hinge connecting portion being rotated and receiving the opening force in a rotationally supported state of the link 15. After being separated from the traveling frame 11, the above-described open folding is performed by rotating the back side by 90 °, and a closing force is also applied to the link 15 in the reverse state to perform the series of closing operations. It will be arranged.

At this time, the lower frame 4 of the opening frame 2 is oriented upward so as to form a guide 31 for guiding the guide roller 14 of the traveling frame 11 and is embedded in the floor surface 16 in a scattered manner in the longitudinal direction. The first lower frame member 21 is provided with a large number of embedded connecting fittings 20 and three first to third lower frame members 21, 22, 23 fixedly connected in a erected manner between the embedded connecting fittings 20.
Is a predetermined length having a dustproof wall 24 that is inclined and rises from the floor surface 16 to the back side on the shutter front side, and the second lower frame member 22 is inclined and rises from the floor surface to the front side on the shutter back side. And a horizontal wall 25 that is shorter than the first lower frame member 21 and has the third lower frame member 23 substantially flush with the floor surface 16 on the shutter back side. First and second lower frame member 2
It is configured as a length corresponding to the difference in length between 1 and 22.

In this embodiment, the embedding connecting metal fitting 20 has a short U-shaped cross section and is embedded so that the opening faces upward, and the opening receives and accommodates the guide 31 of the lower frame 4.

Each of the first to third lower frame members 21, 22, and 23 is obtained by cutting an aluminum extruded material, and the first lower frame member 21 of this example is a V-shaped dustproof wall. On the back side of 24, a vertical wall 26 and a bottom wall 27 that divide the guide 31 into two L-shaped surfaces are provided, while a fixing strip 28 is provided at the lower end on the front side of the dustproof wall 24, and the second lower frame member 22 is Similarly, on the front side of the dustproof wall 24 which is also V-shaped, a vertical wall 26 defining the guide 31 on one surface and a fixing strip 28 on the lower end on the back side are provided, and the third lower frame member 23 is the horizontal wall. 25 is provided with a similar hanging wall 26 on the front side and a fixing strip 28 on the back side.

The first lower frame member 21 is positioned independently on the front side of the shutter, and the second lower frame member 22 and the third lower frame member 23 are positioned on the rear side of the shutter in series, respectively. Each fixed strip 28 against each other and screw 2
9. Stop the gap caused by the difference in height position between the second and third lower frame members 22 and 23 on the side of the second lower frame member 22, and close the gap with a void blocking member such as a resin cap (not shown). The lower frame 4 is configured by.

At this time, the first lower frame member 21 is a single unit having the same length as the entire length of the lower frame 4 corresponding to the predetermined opening width of the opening frame 2, and the second lower frame member 22 is the first lower frame member. In this example, the length of the folding shutter 1 is shorter than 21, and the length of the folding shutter 1 plus the length of one shutter panel 6 excluding the length based on the lateral width is a single integral body, and the third lower frame member 23
Is a length based on the folding margin of the folding shutter 1 plus the width of one shutter panel 6 corresponding to the difference in length between the first and second lower frame members 21 and 22, This prevents pebbles, dust, etc. from entering the guide 31 on the front side of the shutter, and at the same time allows wheelchairs and trolleys to pass through. Further, the folding portion 10 can be folded to open the shutter and to close the folding portion. The arrangement is set to.

That is, the lower end of the shutter 1 including the free end side of the non-connecting side of the shutter panel 6 is retained in the lower frame 4 via the airtight material 32 on both sides of the front and back surfaces in a fitted manner. The lower end of the rear surface side of the frame member 23 is opened to release the holding of the shutter panel 6, so that the hinge connecting portion 12, the link 15 and the like perform folding shutter opening and folding and a series of closed arrangements. There is.

Reference numeral 30 in the figure denotes a screw additionally used to further fix the first lower frame member 21 and the second or third lower frame member 22, 23.

Although the illustrated example is as described above, the folding shutter is a bellows-shaped fold, in which the shutter panel is hinged so as to alternate between mountain folds and valley folds, as is commonly used, instead of the above-mentioned folded folds. In this case, the length of the third lower frame member is the length based on the folding width of the folding shutter plus the lateral width of the two shutter panels, and the length of the second lower frame member is The length may be set to a length excluding the length of the first lower frame member.

Folding, including that each lower frame member is made of stainless steel, and that the relationship between the folding shutter and the lower frame is changed to that of the guide roller guide instead of that of the door roller running on the lower frame. Shutter, embedded connection fitting,
The first to third lower frame members, the respective specific materials, shapes, structures, dimensions of these lower frames, their relations, additions thereof, and the like are variable as long as they do not violate the gist of the above invention,
It is not limited to what has been shown and described above.

〔The invention's effect〕

As described above, the present invention includes the embedded connecting fittings that are embedded in a longitudinally scattered manner, and the first to third lower frame members that are fixedly connected to the embedded connecting fittings in an erected manner. 1 The lower frame member has a predetermined length having a dust-proof wall that is inclined and rises from the floor surface to the back side on the shutter front side, and the second lower frame member is inclined and rises from the floor surface to the front side on the shutter back side. The first and second lower frame members are made shorter than the first lower frame member, and the third lower frame member has a horizontal wall which is substantially flush with the floor surface on the rear side of the shutter. 2 The length of the lower frame member corresponds to the difference between the lengths of the lower frame members.
To provide a lower frame of a folding shutter panel that does not include unnecessary configurations and saves resources without complicated cutting work, prevents dust from entering, and allows wheelchairs, carts, and the like to pass through. You can

[Brief description of drawings]

1 is a rear view of the folding shutter, FIG. 2 is a cross-sectional view in a partially closed state, FIG. 3 is a plan view of a lower frame, and FIG.
FIG. 5 is a vertical sectional view taken along the line AA in FIG. 5, and FIG. 5 is a vertical sectional view taken along the line BB in FIG. 1 …… Folding shutter, 22 …… Second lower frame member 4 …… Lower frame, 23 …… Third lower frame member 6 …… Shutter panel, 24 …… Dustproof wall 20 …… Embedded connection metal fittings, 25 …… Horizontal wall 21 …… First lower frame member

Claims (1)

[Claims] 1. A first lower part, comprising: embedded connecting fittings embedded in a dotted manner in the longitudinal direction; and first to third lower frame members fixedly connected in an erected manner between the embedded connecting fittings. The frame member has a predetermined length having a dustproof wall that is inclined and rises from the floor surface to the back side on the shutter front side, and the second lower frame member is inclined and rises from the floor surface to the front side on the shutter back side. The first and second lower frame members have a dust-proof wall and are shorter than the first lower frame member, and the third lower frame member has a horizontal wall which is substantially flush with the floor surface on the rear side of the shutter. A lower frame of a folding shutter, which has a length corresponding to a difference in length of frame members.