JPH0724556Y2 - Sliding door automatic draft preventer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a draft prevention device attached to a lower frame portion of a sliding door type automatic door.

[Conventional technology]

Conventionally, in a sliding door type automatic door, a draft wind preventive device for closing the gap is provided in the lower frame portion of the automatic door so as to prevent air from entering through the gap between the lower frame portion of the automatic door and the floor surface. As shown in FIGS. 7 and 8, this draft preventive device is a frame body 21 having an H-shaped cross section formed in a lower frame portion 26 of an automatic door in the opening / closing direction thereof. The frame body 21 has mounting plates 23, 23a formed upward on both sides of a flat plate 22 extending in the opening / closing direction, and soft materials 24, 24a formed downward, and the mounting plates 23, 2 are formed.
Protrusions 25, 25a are formed on the outer surface of 3a. on the other hand,
On the inner surface 26a of the lower frame portion 26 of the automatic door, the protrusions 25, 25a
Engaging portions 27, 27a that engage with are formed.

Then, in order to attach the frame body 21 to the lower frame portion 26 of the automatic door, the mounting plates 23 and 23a of the frame body 21 are locked to the protrusions 25 and 25a on the inner side surface 26a of the lower frame portion 26 of the automatic door. The parts 27 and 27a are fitted so that they engage with each other, and then the clearance 29 and 29a between the soft material 24 and 24a, which is a draft preventive material, and the upper surface of the gate rail 28, respectively.
The door body was adjusted up and down, and the soft materials 24 and 24a were cut out so as to be as small as possible.

[Problems to be solved by the invention]

As described above, the conventional draft preventive device uses a soft material between the door lower frame and the guide rail to prevent draft, but the adjustment required to provide a slight gap between the soft material and the guide rail. But not only is it very time-consuming,
When an automatic door has been used for many years, there has been a problem that the soft material and the guide rail come into contact with each other due to wear of a door roller that guides the door in the opening / closing direction, and the opening / closing resistance increases to hinder the opening / closing of the door. On the contrary, when the door is attached, if the gap is made large so that the contact does not occur, there is a problem in that the effect of preventing draft draft is reduced and the original purpose cannot be achieved, which is uncomfortable.

Further, if the draft preventer is complicated, there is a problem that the weight of the door body to which it is attached is unnecessarily heavy.

Therefore, in the present invention, it is possible to easily install the draft preventive device, prevent the soft material of the draft preventive device from contacting the guide rails, and to sufficiently obtain the original effect of the draft preventive effect. Subject.

[Means for solving problems]

The technical means for solving the technical problem is to install downward-preventing steady rest members that move in the groove of the guide rail and prevent lateral shake on both sides of the lower frame of the sliding door automatic door in the opening and closing direction. A device for preventing drafts that is applied to a certain door and passes through between the lower frame portion of the door and the guide rail, and has a middle wall material that extends downward at approximately the center in the thickness direction of the lower frame portion of the door. A mounting plate is removably attached to the lower frame portion so that the steady rests are lined up in series with the inner wall material, and the inner wall material and the steady rest cooperate to prevent drafts. Between the inner wall material and the steady rest member and the groove of the guide rail, there is a gap having a size capable of absorbing the vertical fluctuation amount of the door, floor, etc. The inner wall material extends downward as much as or more than the steady rest member, At least the lower is that formed by the adjustable soft material cut.

(Operation) According to the above technical means, the length of the metal steady-state member in the opening and closing direction is minimized, and drafts are prevented by the inner wall material of the soft material in cooperation with this steady-state member. Does not add weight to the door if necessary.

Further, the inner wall material of the soft material can be cut and adjusted, and the gap between the groove of the guide rail and the groove can be minimized so as to absorb the vertical fluctuation amount of the door, the floor, or the like.

(Embodiment) An embodiment to which the present invention is applied will be described below with reference to the drawings shown in FIGS. 1 to 6.

As shown in FIG. 1, a frame body 1 which is a draft preventive device is attached to a lower frame portion 3 of a sliding door type automatic door 2 which opens and closes in the direction of an arrow A in the opening / closing direction. Third
As shown in the figure, it is composed of a flat plate 4, mounting plates 5, 5a, protrusions 6, 6a, outer wall members 7, 7a, and inner wall member 8, and the mounting plates 5, 5a are formed upward from both sides of the flat plate 4. And the protrusion
6, 6a are formed on the outside of the mounting plates 5, 5a, and the outer wall material 7, 7a is formed.
Are formed downward from both sides of the flat plate 4, and the inner wall member 8
Is formed downward from the approximate center of the flat plate 4. At this time, as shown in FIG. 2, the outer wall members 7 and 7a and the upper surfaces 10 and 10a of the guide rails 9 have sufficient gaps 11 and 11 to absorb the downward movement of the door due to the abrasion of the door roller and other fluctuations. 11a, and the inner wall member 8 is a guide rail.
Grooves extending downward from the upper surface of the 10, 10a, the groove of the guide rail 9
A sufficient gap (14) is formed between the bottom surface (13) and the bottom surface (13) so as to be able to absorb the amount of downward movement of the door due to wear of the door roller and other fluctuations. In the case of the present embodiment, the outer wall materials 7, 7a and the inner wall material 8 are made of soft materials. Further, locking portions 15, 15a are formed on the inner side surface 3a of the lower frame portion 3 of the automatic door 2.

Then, in order to attach the frame body 1 to the lower frame portion 3 of the automatic door 2, the protrusions 6, 6a are provided on the inner side surface 3a of the lower frame portion 3 of the automatic door 2.
So that the locking portions 15 and 15a are engaged with each other, the mounting plate 5,
All you have to do is insert 5a. At this time, if the guide rail 9 or the like is distorted or the like, there is a gap between the outer wall material 7, 7a and the upper surface of the guide rail 9 that can absorb the amount of downward movement of the door due to abrasion of the door roller or other variation. If it cannot be obtained, the outer wall members 7 and 7a of the soft material may be cut out and adjusted. The inner wall member 8 extends downward from the upper surface of the guide rail 9 and the bottom surface 13 of the groove 12 of the guide rail 9. It is not necessary to make an adjustment because a sufficient gap 14 that can absorb the amount of downward movement and fluctuation of the door is provided in advance. However, when the adjustment is necessary, the lower portion of the inner wall material 8 is cut off. You can do it.

Next, the operation of the draft preventer attached as described above will be described.

Arrows B, C, and D in FIG. 2 indicate the flow of the draft, and in the case of a weak wind, the draft B is created by the outer wall materials 7 and 7a.
Wind C that is suppressed and cannot be suppressed by this outer wall material 7,7a
However, it is softened by abutting against the inner wall material 8 to prevent the draft from directly entering the interior, and even in the case of a strong wind C, the abutting against the outer wall materials 7, 7a and the inner wall material 8 softens the draft. Even if outside air enters the indoor side, it will not be discomfort.

By the way, the lower rail 3 of the automatic door 2 has a guide rail 9
There are steady rests 16 and 16a which move in the groove 12 of the automatic door 2 to prevent lateral swing of the automatic door 2. In this portion, the frame body 1 which is a draft prevention device is a flat plate as shown in FIG. 4 is cut out, so that the inner wall material 8 formed on the flat plate 4 disappears, but the steady rests 16, 16a
However, the inner wall material 8 is changed. As a result, the opening / closing direction of the sliding door type automatic door 2 (arrow A in FIG.
Direction), the steady rest member 16, the inner wall member 8, the steady rest member 16
a will be provided in series in this order.

Further, in the case of the present embodiment, the outer wall members 7, 7a and the inner wall member 8 are made of a soft material as described above, and if it is desired to further prevent drafts, as shown in FIG. 5 and FIG. In addition, the tip of the inner wall material 8 is bent from approximately the center to the indoor side, for example.
8a should be formed and attached. At this time, the guide rail 9
It is better to provide a gap 17 so that the lateral inner surface 13a of the groove 12 and the lower end of the inner wall material 8a do not come into contact with each other. In this case, the wind that has entered from the lower portion of the outer wall material 7a can be further prevented from entering the outer wall material 7 side by the inner wall material 8a. When the invading wind is a strong wind, the tip of the inner wall member 8a abuts the lateral inner surface 13a of the guide rail 9 due to the wind pressure, and it is possible to completely prevent the outer wall member 7 from entering.

(Effect of the invention) As described above, according to the present invention, the length of the metal steady rest in the opening and closing direction is minimized, and the inner wall of the soft material is used together with the steady rest to prevent drafts. It is not necessary to increase the weight of the door as necessary, and it is possible to prevent the door from swinging or rattling.

Further, the middle wall material of the soft material can be cut and adjusted, and the gap between the groove of the guide rail can be minimized to absorb the vertical fluctuation amount of the door, the floor, etc. The steady rest can be extended downward more than the same, and can be softened to the extent that a person does not feel uncomfortable due to draft.

[Brief description of drawings]

1 is an overall view of a sliding door type automatic door, FIG. 2 is a sectional view taken along the line A-A of FIG. 1, FIG. 3 is a partial perspective view of a frame, and FIG. 4 is FIG. 5 is a partial perspective view of a modified frame body, and FIG. 6 is a cross sectional view of FIG.
FIG. 8 is a partial perspective view of a conventional frame body, and FIG. 8 is a sectional mounting view of FIG. 1 ... frame, 2 ... automatic door, 3 ... bottom frame 4 ... flat plate, 5,5a ... mounting plate 6,6a ... projection, 7,7a ... outer wall material 8 ... interior wall Material, 9 ... Guide rail 10,10a ... Top surface, 11,11a ... Gap 12,12a ... Groove, 13 ... Bottom surface, 14 ... Gap 15 ... Locking part

Claims (1)

[Scope of utility model registration request] 1. A door for which a slide-stop member which moves in a groove of a guide rail to prevent lateral shake is provided on both sides of a lower frame portion of a sliding door type automatic door in an opening / closing direction so as to project downward. A device for preventing drafts passing through between the lower frame portion and the guide rail of the door, the mounting plate having an inner wall member extending downward at approximately the center in the thickness direction of the lower frame portion of the door, Are detachably attached to the lower frame portion so that the inner wall material and the inner wall material are arranged in series, and the inner wall material and the steady rest cooperate with each other to prevent drafts. Further, between the steady rest and the groove of the guide rail, there is a gap having a size capable of absorbing the vertical fluctuation amount of the door, floor, etc., and the inner wall material is equal to or more than the steady rest. At least below the inner wall material. A device for preventing drafts from sliding door type automatic doors, which is characterized by being formed of a soft material that can be adjusted.