JPH06235275A - Runout preventive structure for double sliding door - Google Patents

Abstract

PURPOSE:To exhibit a stable runout preventive effect, and prevent a runout preventive structure from becoming an obstacle to passing without spoiling beautiful appearance of a passage. CONSTITUTION:A main door (1) and a driven door (2) to move at speed slower than the main door (1) by following up this main door (1) are suspended and supported while floating the bottom surfaces from the floor surface (3). Guide rails (4) and (5) having a U-shaped cross section are installed in the bottom parts of both doors (1) and (2). A fixing guide (7) is fixed on the floor surface (3) just under the driven door (2), and this fixing guide (7) is engaged with the guide rail (5) of the driven door (2). A guide support member (9) is installed on a side plate (8) of the driven door (2) so that the tip part (9b) is situated just under the guide rail (4) of the main door (1). A moving guide (10) is fixed on the tip part (9b) of this guide support member (9), and the moving guide (10) is engaged with the guide rail (4) of the main door (1).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a steady rest structure provided at the bottom of a double sliding door suspended and supported by rails.

[0002]

2. Description of the Related Art One of the doors provided at the entrance of a house is a double sliding door as shown in FIG. The double sliding door is composed of a main door (35) and a driven door (36) that follows the main door (35) and moves at a lower speed than the main door (35). The main door (35) and the driven door (36). ) Has its bottom surface floated from the floor surface (38) and is suspended on a rail (not shown). Generally, in such a hanging type double sliding door, a steady rest structure is provided at the bottom of both doors (35) (36) in order to prevent the swinging of both doors (35) (36) due to opening and closing.

6A and 6B show a conventional steady rest structure. Of these, FIG. 7A shows the opening / closing direction of the main door (35) and the driven door (36) on the floor surface (38) (vertical direction to the paper surface).
A rail (39) having a U-shaped cross section is embedded along the rail, and a plurality of guide rollers (40) mounted on the bottom surfaces of both doors (35) (36) are engaged with the rail (39). is there. Also,
In the figure (b), a ridge (41) is attached to the floor surface (38) along the opening / closing direction of both doors (35) (36), and this ridge (41) is attached to both doors (35) (36). It is engaged with a groove (42) formed on the bottom surface of the.

[0004]

Each of the above-described steady rest structures has the following problems.

In the structure shown in (a), the guide rail (3
9) Dust easily collects inside, impairing aesthetics.

In the structure shown in FIG. 2 (b), the ridges (41) are formed on the floor surface.
It is easy for pedestrians to stumble because of the protrusion. In addition, when a physically handicapped person travels in a wheelchair or the like, it becomes an obstacle to traffic.

Therefore, an object of the present invention is to provide a steady rest structure for a double sliding door that exhibits a stable steady rest effect, does not impair the aesthetics of the passage, and does not obstruct the passage.

[0008]

[Means for Solving the Problems] To achieve the above object,
The present invention has a main sliding door having a bottom surface suspended from a floor surface and a driven door, and the driven door follows the main door and moves at a lower speed than the main door. And

Guide rails are provided on the bottom surface of each of the main door and the driven door along the opening / closing direction, and are provided on the floor surface immediately below the driven door, and guide the driven door during the opening / closing operation of the driven door. A fixed guide that engages with the rail,
The base end portion is attached to the driven door, and the tip end portion is provided on the tip end portion of the guide support member, the tip end portion of which extends directly below the guide rail of the main door. A moving guide that engages with a guide rail of the door.

[0010]

Since the fixed guide which engages with the guide rail of the driven door during the opening / closing operation of the driven door is provided on the floor surface immediately below the driven door, the swing of the driven door due to the opening / closing is prevented. In addition, the base end portion is mounted on the driven door, and the tip end portion of the guide support member extends directly below the guide rail of the main door. Since the matching moving guide is provided, swinging of the main door is also prevented. Further, these fixed guides and moving guides are always located immediately below both doors regardless of whether the doors are open or closed, and do not appear in the passage.

[0011]

Embodiments of the present invention will be described below with reference to FIGS.

FIG. 1 is a longitudinal sectional view of a steady rest structure for a double sliding door according to the present invention, and FIG. 2 is a transverse sectional view taken along line AA in FIG. However, the solid line in FIG. 2 shows the main door (1) and the driven door (2) in the open state, and the two-dot chain line shows both doors (1) and (2) in the closed state. In the following description, the moving direction of both doors (1) and (2) when closing both doors (1) and (2) is referred to as the closing direction, and the moving direction when opening is referred to as the opening direction.

As shown in FIG. 1, the main door (1) and the driven door (2) are supported by being suspended from the floor surface (3) by suspending the bottom surface thereof, and the driven door (2) will be described later. The speed adjustment mechanism follows the main door (1) and the main door (1)
Move slower. At the bottom of both doors (1) and (2),
Along the opening / closing direction (direction perpendicular to the paper surface), guide rails (4) and (5) having a U-shaped cross section are mounted with their openings facing downward.

On the floor surface (3) immediately below the driven door (2),
A fixed guide (7) having a guide roller (7a) is fixed, and the guide roller (7a) is a driven door (2).
Of the guide rail (5). This fixed guide (7), as shown in FIG.
A position in which the door can be always engaged regardless of whether the door is opened or closed, that is, a region where the driven door (2) at the door opening position and the door closed position overlap each other (S: the driven door (2) at the door opening position).
It is provided immediately below (the end on the door closing direction side).

A guide support member (9) having an L-shaped cross section is attached to the side plate (8) of the driven door (2) on the main door (1) side with screws or the like. The guide support member (9) has its base end (9a) attached to the end of the side plate (8) on the door closing direction side, and its tip (9b) attached to the bottom surface of the main door (1) and the floor. It extends horizontally in the gap between the surface (3) and the tip (9b) of the main door (1) directly below the guide rail (4).

The tip portion (9b) of the guide support member (9)
A moving guide (10) having a guide roller (10a) like the fixed guide (7) is fixedly installed on the upper side,
The guide roller (10a) is engaged with the guide rail (4) of the main door (1). The movement guide (10) follows the door closing operation of the driven door (2) and moves in the same direction. However, when the door is closed, the movement guide (10) is located immediately below the end of the main door (1) on the door opening side.

The main door (1) is formed slightly longer than the driven door (2) in the opening direction, and the grips (11) are attached to both sides of the longer part. There is.

FIG. 3 shows a main door (1) and a driven door (2).
It is a longitudinal cross-sectional view of the support structure provided on the upper part of. Less than,
This support structure will be described.

A first traveling roller (13) is rotatably attached to a first hanging metal fitting (12) fixed to the upper end of the main door (1). The first traveling roller (13) rolls on the first support rail (15) integrally formed with the frame (14) as the main door (1) opens and closes. On the other hand, the second traveling roller (18) is rotatably and pivotally attached to the second hanging metal fitting (17) fixed to the upper end of the driven door (2). 18) is a second molded integrally with the frame (14) as the driven door (2) is opened and closed.
Roll on the support rail (19). The first and second support rails (15, 19) are extended in the opening / closing direction (perpendicular to the paper surface) of the main door (1) and the driven door (2).

As described above, the driven door (2) follows the main door (1) and moves at a lower speed than the main door (1) by the action of the speed adjusting mechanism. This speed adjustment mechanism (2
1) is a fixed rack (22) fixed to the frame (14)
And a moving rack (23) fixed to the first suspension metal fitting (12)
And a pinion (24) interposed between the fixed rack (22) and the movable rack (23) and meshed with both racks (22) and (23), and a bracket (25) of the pinion (24). Is fixed to the second hanging metal fitting (17). The fixed rack (22) and the movable rack (23) are extended in the opening / closing direction of both doors (1) and (2).

In this structure, when the main door (1) is opened and closed, the movable rack (23) moves in the opening and closing direction,
Along with this, the movable rack (23) and the fixed rack (22)
The pinion (24) meshed with is moving in the same direction while rotating. As a result, the driven door (2) becomes the main door (1).
And will move at a slower speed than the main door (1). At this time, the speed ratio of the main door (1) and the driven door (2) is 2: 1. In this embodiment, as shown in FIG.
The door width is preset so that the main door (1) and the driven door (2) partially overlap each other when the door is closed.

The operation of the steady rest structure from the opening to the closing of the door will be described below in sequence with reference to FIG. The reference numeral (26) in the figure indicates a passage.

First, as shown in FIG. 1 (a), the handle (11)
When the main door (1) in the open position is closed in the direction of the arrow by grasping, the follower door (2) starts the closing operation following this. At this time, as shown in FIG.
0) also moves to the closing direction side (right side in the drawing) following the closing operation of the driven door (2), but it is seen from the main door (1) due to the difference in moving speed of both doors (1) and (2). The relative position of the movement guide (10) moves to the door opening direction side (left side in the drawing). Then, as shown in FIG. 7C, when the main door (1) and the driven door (2) reach the closed position, the fixed guide (7) and the moving guide (10) move to both doors (1) and (2). It is located at the end on the door opening side.

As described above, according to the steady rest structure of the present invention, the fixed guide (7) and the moving guide (10) are the guides of both doors (1) and (2) from the opening to the closing. Since the rails (4) and (5) are securely engaged with each other, the steady rests of both doors (1) and (2) are surely secured, and both doors (1)
(2) can be closed stably. Further, this effect is similarly obtained when both doors (1) and (2) are opened. Further, since both the fixed guide (7) and the moving guide (10) are always located immediately below the main door (1) and the driven door (2) and do not appear in the passage (26), the passage (26) is flat. Can be converted. Therefore, unlike the conventional product, it does not hinder the passage of traffic and it is possible to prevent the deterioration of the aesthetic feeling due to the accumulation of dust and the like.

Although the above description is for the case of manually opening and closing the door, the above-described steady rest structure is a semi-automatic type, that is, a structure in which the door is automatically closed after being manually opened. The same can be applied to the double sliding door. In this case, as shown by a chain double-dashed line in FIG. 3, a coil spring and a hydraulic mechanism (both not shown) proposed by the present applicant in Japanese Utility Model Laid-Open No. 3-105684 are provided on the frame (14).
Equipped with a sliding door drive unit (28), etc., the endless chain (30) is attached to the drive sprocket (29) of the sliding door drive unit (28).
And the endless chain (30) may be connected to the suspension fitting (12) of the main door (1).

Although not shown, the steady rest structure can be similarly applied to a fully automatic type double sliding door that automatically performs not only the door closing operation but also the door opening operation.

[0027]

According to the present invention, since the fixed guide and the movable guide engage with the guide rails mounted on both doors during the opening / closing operation of the main door and the driven door, the steady rest of both doors can be surely achieved. Done. Therefore, the double sliding door can be stably opened and closed. Further, since both the fixed guide and the movable guide are always located immediately below the main door and the driven door and do not appear in the passage, the passage can be flattened. Therefore, like conventional products,
It also prevents the deterioration of aesthetics due to the accumulation of dust and the like.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a steady rest structure for a double sliding door according to the present invention.

FIG. 2 is a cross-sectional view taken along the line AA in FIG.

FIG. 3 is a vertical cross-sectional view of a support structure provided on upper portions of a main door and a driven door.

4A and 4B are a plan view and a front view showing the operation of the steady rest structure from the opening door to the closing door.

FIG. 5 is a plan view (a) and a front view (b) of a conventional double sliding door.

6 is a vertical cross-sectional view taken along the line BB in FIG.

[Explanation of symbols]

 1 main door 2 driven door 3 floor 4 guide rail 5 guide rail 7 fixed guide 9 guide support member 9b tip 10 movement guide

Claims (1)

[Claims] 1. A steady rest for a double sliding door having a main door and a driven door suspended from a floor so that the bottom surface floats above the floor, and the driven door follows the main door and moves at a lower speed than the main door. A guide rail provided along the opening / closing direction on the bottom surface of each of the main door and the driven door, and a floor provided directly below the driven door, the driven door being opened / closed during the opening / closing operation of the driven door. A fixed guide that engages with the guide rail, a base end portion of which is attached to the driven door, and a distal end portion of the guide support member that extends directly below the guide rail of the main door; and a guide support member that is provided on the distal end portion of the guide support member. And a movement guide that engages with a guide rail of the main door during opening / closing operation of the main door.