JPH1136722A - Lower frame of sliding door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce heat conduction between the outdoor side and indoor side of a lower frame by forming a rail and the falling stop of a wheel for a wheel chair of stainless steel and fixing the rail and the falling stop onto the top face of a base. SOLUTION: Rails 4 and falling stops 5, in which upper ends are aligned with the upper ends of the rails 4, are formed of stainless steel, and fixed onto the top face of a base 2, thus constituting the lower frame 1 of the sliding door 7. The base 2 is formed by covering the top face and both side faces consisting of aluminum extruded profiles, etc., with stainless steel covers 3 for protection, and the rails 4 and the falling stops 5 are unified with the covers 3. Since the rails 4 and the falling stops 5 are made of stainless steel, heat conduction between the outdoor side and indoor side of the lower frame 1 is lowered. The base 2 is divided into an outdoor material 21 and an indoor material 22 in place of the above-mentioned method, the outdoor material 21 and the indoor material 22 are connected through a heat-insulting material 23 while the rails 4 or the falling stops 5 are separated in the depth direction, and the covers 3 are also separated in the depth direction in the upper section of the heat-insulating material 23. Accordingly, the cold bridges and heat bridges of the base and the rails and the falling stops can be reduced, and durability can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lower frame of a sliding door for reducing the influence of a cold bridge or a hot bridge while being barrier-free.

[0002]

2. Description of the Related Art In a lower frame facing the outdoors, such as a lower frame of an entrance sliding door, cold air in winter or hot air in summer enters from between the lower frame of the sliding door. In addition to the problem of the lower frame, the entire lower frame is cooled or heated due to the influence of the cold bridge or the hot bridge due to the cold air coming into contact with the outdoor part of the lower frame, so that the indoor air is cooled or heated. There's a problem.

The present invention proposes a lower frame for reducing the influence of a cold bridge or a hot bridge from the above background.

[0004]

According to a first aspect of the present invention, a base includes:
The lower frame is composed of the rail fixed to the upper surface of the base and the drop stopper, and the rail and drop stopper that are exposed on the surface as the lower frame are made of stainless steel, so that the lower frame between the outdoor side and the indoor side Reduce heat conduction.

[0005] In addition to the rail on which the sliding door runs, the lower frame has a drop stop for preventing the wheel of the wheelchair from falling.
Reduces the impact of the wheelchair passing over the lower frame.

The durability and corrosion resistance of the lower frame are improved because the rail and the drop stopper exposed on the surface of the lower frame are made of stainless steel.

According to a second aspect of the present invention, the outdoor member and the indoor member which are separated from each other, and a heat-insulating member made of a heat insulating material interposed between the two members and connecting the two members are used, and the rail or the drop stopper on the base is used. By separating the bridges in the expected direction, it is possible to prevent a cold bridge or a hot bridge at the base, and to reduce the number of the cold bridges or the hot bridges at the rail or the drop stop.

[0008] The effect of reducing the cold bridge or the hot bridge by the rail or the drop stopper is large when the rail or the drop stopper is separated in the expected direction on the heat insulating material of the base.

In this case, there is no contact between the rail or drop stopper located closer to the exterior and the base material and the rail or drop stopper located closer to the interior and the exterior material of the base. Cold bridges and hot bridges between the bridge and the fall stop are also prevented.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a rail 4 and a rail 4.
Is a lower frame 1 for a sliding door 7 having a drop stop 5 arranged in parallel with the vehicle, and through which a wheelchair can pass. Although the drawing shows the lower frame 1 for the sliding door 7 suitable for the entrance, the lower frame 1 is not limited to the entrance, but is also applied to the opening facing the terrace or balcony. In addition to the case where the sliding door 7 is arranged in a sliding manner as shown in FIG.

The lower frame 1 is composed of a base 2 having a flat upper surface, a stainless steel rail 4 fixed to the upper surface of the base 2, and a stainless steel drop stopper 5 as well.

The base 2 is made of extruded aluminum material, and a stainless steel cover 3 for protecting the base 2 is put on the upper surface and both side surfaces. The cover 3 is integrated with the base 2 by screws, welding, or caulking.

The rail 4 and the drop stopper 5 are formed on the cover 3 or fixed to the cover 3 by welding or screws as shown in the drawing.

The drop stopper 5 has a function of preventing a wheelchair wheel passing over the lower frame 1 from falling between the rails 4 and 4 or between the rail 4 and the floor.
Are aligned to the top of The distance between the rail 4 and the drop stopper 5 is set to a size such that the wheel of the wheelchair does not fall even if it is turned sideways.

In the drawing, since the lower frame 1 is for the entrance,
Guides the wheel of a wheelchair on the lower frame 1 from the outdoor floor surface or vice versa, corresponding to the step between the indoor floor surface and the outdoor floor surface, to the outdoor side of the drop stopper 5 located at the most outdoor side. A slope 6 is formed or fixed to the base 2 of the lower frame 1.

If the rail 4 and the drop stopper 5 which are exposed on the surface of the lower frame 1 are made of stainless steel, the heat conduction between the outside and the indoor side of the lower frame 1 is reduced, so that a certain amount of cold air Although an effect of blocking hot air can be expected, in the drawing, in order to prevent a cold bridge or a hot bridge on the base 2 and a cold bridge or a hot bridge on the rail 4 or the drop stop 5, a heat insulating shape is used for the base 2 and , Rail 4 or drop stopper 5 is separated in the expected direction. In this case, the base 2 is composed of an outdoor material 21 and an indoor material 22 which are separated from each other, and a heat insulating material 23 interposed between the two and connecting the two.

In the drawing, in particular, by separating the rail 4 or the drop stopper 5 in the expected direction at the position of the heat insulating material 23 of the base 2, the contact between the rail 4 or the drop stopper 5 located closer to the outdoor and the indoor material 22 is reduced. The contact between the outdoor material 21 and the rail 4 or the drop stopper 5 located closer to the room is avoided. Rail 4
When the stopper 5 and the drop stopper 5 are separated at the position of the heat insulating material 23 of the base 2, the cover 3 is also separated in the expected direction at the portion on the heat insulating material 23.

When a heat-insulated profile is used for the base 2, the heat-insulated profile is also used for the upper frame 8 and the vertical frame 9 as shown in FIGS. If they are arranged at the same position, a cold bridge or a hot bridge can be prevented over the entire opening frame.

[0019]

According to the first aspect of the present invention, the lower frame is composed of the base, the rail fixed to the upper surface of the base, and the stopper, and the rail and the stopper which are exposed on the surface as the lower frame are made of stainless steel. In addition, heat conduction between the outdoor side and the indoor side of the lower frame can be reduced. In addition, the durability and corrosion resistance of the lower frame are improved.

In a second aspect, the base is made of a heat-insulating material,
Rails or drop stops on the base are separated in the expected direction, preventing cold and hot bridges at the base,
Cold bridges and hot bridges on rails or drop stops can be reduced.

According to the third aspect of the present invention, since the rail and the stopper are separated in the expected direction on the heat insulating material of the base, a cold bridge or a hot bridge in the rail or the stopper can be prevented.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a relationship between a sliding door and a lower frame.

FIG. 2 is a longitudinal sectional view showing the entire sliding door.

FIG. 3 is a cross-sectional view of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Lower frame, 2 ... Base, 21 ... Outdoor material, 22 ... Indoor material, 23 ... Heat insulation material, 3 ... Cover, 4 ... Rail, 5 ...
... fall stop, 6 ... slope, 7 ... sliding door, 8 ... upper frame, 9 ... vertical frame.

Claims (3)

[Claims] 1. A base, a stainless steel rail fixed to the upper surface of the base, and a stainless steel drop stopper fixed to the upper surface of the base in parallel with the rail and having an upper end aligned with the upper end of the rail. Sliding door lower frame. 2. The base comprises an outdoor material and an indoor material which are separated from each other, a heat insulating material interposed between the two, and connecting the both.
2. The lower frame of the sliding door according to claim 1, wherein the rail or the drop stopper on the base is separated in the expected direction. 3. The lower frame of the sliding door according to claim 2, wherein the rail or the drop stopper is separated in the expected direction on the heat insulating material of the base.