JPH0735696U - Double overhead door - Google Patents

Abstract

(57) [Abstract] [Purpose] One guide rail selectively opens and closes two types of overhead doors. [Structure] An outer door 1 and an inner door 2 composed of a plurality of panels 10 and 20, a guide rail 3 standing upright in an opening 6, and an outer door 1 which is arranged above the guide rail 3 and stores the outer door 1. Storage rail 4, a storage rail 5 disposed above the guide rail 3 and below the storage rail 4 for storing the inner door 2, and a panel 1 of the outer door 1 and the inner door 2.
Guide rollers 11 and 21 provided on the storage rails 0 and 20 and guided by the storage rails 4 and 5 or the guide rail 3; , A drum 8 for pulling up the outer door 1 upward, a drum 9 for pulling up the inner door 2 at a predetermined angle, and a second panel 10 from above the outer door 1.
The roller 12 is provided at a position which can abut the outside of the guide rail 3 and the branch portion 30 on the side of the roller 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to improvement of an overhead door that opens and closes a door stored along a ceiling to open and close an opening provided on a side of a building or the like.

[0002]

[Prior art]

 BACKGROUND ART There is known an overhead door that opens and closes a door stored along a ceiling as a door of a building and closes or releases an opening provided on a side of the building. While the opening provided in the building is closed at night, and in the daytime when ventilation is performed with screen doors and the like to prevent invasion of insects, etc., it is slidably supported by guide rails 93 as shown in FIG. An outer door 91 that opens and closes the opening 6 of the building 60, and an inner door 92 formed of a screen door that is slidably supported by a guide rail 94 provided inside the building 60 in parallel with the guide rail 93 are provided. Those equipped are known.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional overhead door, if an attempt is made to close the opening 6 only by the inner door 92, a gap C is generated between the upper portion of the opening 6 and the upper end of the front surface of the inner door 92, so that the inner door 92 is closed. There was a problem that a deadline member was needed only when closed.

Therefore, the present invention has been made in view of the above problems, and improves the airtightness by reducing the gap between two doors that are opened and closed alternately and one opening. Intended to provide heavy overhead doors.

[0005]

[Means for Solving the Problems]

 The present invention relates to an overhead door having two doors stored above the opening and alternately opening and closing one opening, and a first door and a second door formed by connecting a plurality of panels to each other. A guide rail that is provided in the opening and is substantially upright; a first storage rail that is disposed above the guide rail and that stores the first door; and a guide rail that is also above the guide rail. A second storage rail disposed below the first storage rail to store the second door, and the first or second storage provided on each panel of the first and second doors. A rail or a guide roller guided by the guide rail, a branch portion that connects the upper end of the guide rail to one ends of the first and second storage rails, and a panel that forms the first door are provided. Out of guide roller Double overhead Dodoa, characterized in that the guide rollers located at the upper end is disposed to a position at all times engaged to said first guide rail when closed one door.

[0006] Further, means for pulling up the first door and pulling up the second door at a predetermined angle are respectively provided.

Further, when the first door is closed, a displacement regulating means is provided at a predetermined position which can abut the guide rail and the branch portion laterally of the second panel from the upper end.

[0008]

[Action]

 Therefore, when the first door whose opening is being closed is lifted up and stored, the guide rollers located at the upper end are always engaged with the first storage rail, so that the panels forming the first door are sequentially arranged. Guided by the first storage rail, the first door is stored in the first storage rail, which is a predetermined storage position, while lifting the second door with the opening closed causes each panel to be lifted. The provided guide roller engages with the second storage rail from the branching portion, the second door is stored in the second storage rail which is a predetermined storage position, and one guide rail allows the first door or the second door to be stored. The opening can be opened and closed alternately by the second door.

Further, since the first door is pulled up by the pulling means, each panel is sequentially guided to the first storage rail, while the second door is pulled up at a predetermined angle and branched. The guide roller guides the second door to the second storage rail without penetrating the first storage rail.

Further, since the second panel from the upper end of the first door is provided with the roller that can contact the branch and the guide rail, the displacement of the first door inside the opening is restricted. The guide roller of the first door can prevent the intrusion into the second storage rail and guide it to the first storage rail.

[0011]

【Example】

 1 to 5 show an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes an outer door as a first door in which long sides of a panel 10 formed of a rectangular plate member are connected to each other, and 2 denotes a panel 20 also formed of a rectangular screen door. It is an inner door as a second door whose long sides are connected to each other.

Reference numeral 3 is a guide rail having a “U” -shaped cross section that is erected along both sides of the opening 6 of the building 60, and is substantially parallel to the ceiling 61 of the building 60 above the guide rail 3. And a storage rail 5 as a second storage rail, which is disposed below the storage rail 4 and substantially in parallel with the ceiling 61, which is the same as the first storage rail. The ends of the storage rails 4, 5 on the side of the opening 6 and the upper ends of the guide rails 3 are connected via a branch portion 30 having a substantially “Y” shape. The storage rails 3 and 4 and the branch portion 30 have the same “U” -shaped cross section as the guide rail 3.

As shown in FIGS. 3 and 5, brackets 13 and 23 are provided on both ends of the panel 10 that constitutes the outer door 1 and the panel 20 that constitutes the inner door 2, respectively, and the shafts 14 and 24 are fixed to the tips. The guide rollers 11 and 21 are rotatably supported.

The guide rollers 11 provided on the sides of the outer door 1 are guided by the branch portion 30, the guide rails 3 and the storage rails 4 to support the outer door 1 slidably, while the inner door 2 side The guide roller 21 provided on one side is guided by the branch portion 30, the guide rail 3 and the storage rail 5 to slidably support the inner door 2. As shown in FIG. 2, the guide roller 11a provided on the panel 10a forming the uppermost part of the outer door 1 in the closed state engages with the storage rail 4 above the branch portion 30 in the closed state of the outer door 1. The guide roller 11a of the outer door 1 is supported by the bracket 13a at the position and always engages with the storage rail 4 without moving below the branch portion 30.

Below the ceiling 61 on the axis of the guide rail 3, a drum 8 as a pulling means formed of a cylindrical member is supported by one end of a wire 80 being fixedly wound up. A coiled spring is housed inside the drum 8 (not shown) to urge the drum 8 in the winding direction of the wire 80, and the other end of the wire 80 when the outer door 1 is closed as shown in FIG. It is fixed to a bracket 13 protruding from the panel 10 located at the lower end, and a preload is provided so that the outer door 1 can be easily pulled up manually.

The drum 9 as a means for pulling up the inner door 2 is preset with respect to the axis of the guide rail 3 from the shaft 24 located at the branch portion 30 between the storage rails 4 and 5 as shown in FIG. The wire 81 is arranged at a position with the angle θ, and one end of the wire 81 is fixed and is supported so as to be freely wound. A coiled spring is housed inside the drum 9 (not shown) to urge the drum 9 in the winding direction of the wire 81, and the other end of the wire 81 is located at the lower end when the inner door 2 is closed. It is fixed to a bracket 23 projecting from 20, and preloaded so that the inner door 2 can be easily pulled up manually.

As shown in FIG. 5, the wire 81 that imparts an upward preload to the inner door 2 contacts the opening 6 side of the shaft 24 between the bracket 23 and the guide roller 21, and rises to the branch portion 30. The shaft 24 is urged toward the storage rail 5.

As shown in FIGS. 2 and 3, a guide plate 31 formed of a plate-shaped member having a predetermined thickness is provided at a predetermined position on the upper end of the guide rail 3 and the end face of the branch portion 30 facing the opening 6. When the outer door 1 is fixed and the outer door 1 is closed as shown in FIG. 2, the rollers 12 as displacement regulating means pass through the guide plate 31 on both side surfaces of the second panel 10b from the upper end as shown in FIGS. It is projected at a possible position. The guide plate 31 guides the guide roller 11b to the storage rail 4 by preventing the guide roller 11b from displacing to the storage rail 5 side while the roller 12 abuts when the panel 10b rises and passes through the branch portion 30. It makes it possible.

With the above configuration, the operation will be described.

To open the outer door 1 that closes the opening 6 of the building 60, the panel 10 that constitutes the lower end of the closed outer door 1 is lifted upward along the guide rail 3.

Since the guide roller 11a provided on the panel 10a forming the upper end of the outer door 1 in FIG. 2 is always engaged with the storage rail 4 from the closed state, when the outer door 1 is lifted, it is shown in FIG. The panel 10a thus passing through the branch portion 30 moves along the storage rail 4. At this time, when the panel 10b forming the second from the upper end of the outer door 1 reaches the branch portion 30, the rollers 12 projecting on both side surfaces contact the guide plates 31 of the branch portion 30. The roller 11b moves upward along the axis of the guide rail 3 while being restricted from being displaced toward the storage rail 5 at the branch portion 30, and the panel 10b is guided from the branch portion 30 to the storage rail 4.

When the outer door 1 is further lifted, the panel 10a is guided by the storage rail 4 and reaches a substantially parallel position as shown in FIG. 7. At this time, when the outer door 1 is in the closed state, the panel 10a is third from the top. Although the panel 10c of the drum 10 approaches the branch portion 30, the load in the direction of the arrow in the figure is applied by the weight of the panels 10a and 10b that have already passed through the branch portion 30, while the wire 80 of the drum 8 guides the lower end of the outer door 1 from the lower end. Since the panel 10c is biased upward along the rail 3, a resultant force is applied to the panel 10c in the direction of the opening 6, and the guide roller 11c moves upward while being pressed by the end surface of the branching portion 30 on the opening 6 side. And engages with the storage rail 4.

Similarly, the panel 10 below the panel 10c is also sequentially guided from the branch portion 30 to the storage rail 4, and the outer door 1 is stored in the storage rail 4 which is a predetermined storage position, and the opening 6 of the building 60 is opened. Opens.

In order to close the opened state of the opening 6 to the state in which the inner door 2 provided with a screen door (not shown) can freely ventilate, the panel 20 of the inner door 2 stored in the storage rail 5 as shown in FIG. Toward the opening 6.

The guide roller 21 passes through the branching portion 30 from the storage rail 5 and engages with the guide rail 3, and accordingly, the panel 20 sequentially moves downward along the guide rail 3 and is moved as shown in FIG. The inner door 2 closes the opening 6. The inner door 2 having a screen door (not shown) allows the inside of the opening 6 to be freely ventilated, while the screen door can prevent insects and the like from entering.

On the other hand, to open the inner door 2 with the opening 6 closed, the panel 20 constituting the lower end of the closed inner door 2 is lifted upward along the guide rail 3.

When the guide roller 21 provided on the panel 20 forming the upper end of the inner door 2 approaches the branch portion 30, as shown in FIGS. 4 and 5, the guide roller 21 of the drum 9 for urging the inner door 2 upward is provided. The wire 81 is arranged on the side of the opening 6 of the shaft 24, and the wire 81 is wound around the drum 9 at the angle θ at the branching portion 30, so the shaft 24 is pressed toward the inside of the building 60 by the wire 81. Along with this, the guide roller 21 moves upward while being in contact with the inner end surface of the building 60 of the branch portion 30 and is guided to the storage rail 5.

The panel 20 of the inner door 2 is sequentially moved along the storage rail 5 by the urging force of the wire 81 wound around the drum 9, and the inner door 2 is stored along the storage rail 5.

At night or the like, the opening 6 can be closed by pulling down the outer door 1 again. In the daytime, if the opening 6 is closed by the inner door 2 equipped with a screen door, the inside of the building 60 is ventilated. It can prevent insects from entering.

In this way, the outer door 1 is provided with the roller 12 for restricting the displacement of the second panel 10b from the upper end to the inner side, and the guide roller 11a of the first panel 10a is always engaged with the storage rail 4. On the other hand, in order to bring the wire 81 for urging at a predetermined angle θ into contact with the opening 6 side of the shaft 24 that supports the guide roller 21 of the inner door 2, the outer door 1 and the inner door 2 are combined into one guide rail 3. It can be shared by the outside door 1 and the inside door 2 alternately without creating a gap in the opening 6, and the outside door 1 is attached to the storage rail 4 facing the ceiling and the inside door 2. 2 can be surely stored in the storage rails 5 arranged below the storage rails 4, and since the branching portion 30 does not require a movable part such as a switching means, it has a simple structure and durability. It becomes high.

Although the outer door 1 is formed of a flat plate and the inner door 2 is formed of a screen door in the above embodiment, it may be formed of a member such as glass.

Further, although drums 8 and 9 which are biased in the winding direction of the wires 80 and 81 are provided as pulling means, although not shown, the lower end of the outer door 1 is upward and the upper end of the inner door 2 is predetermined. Each may also receive a spring which urges upwards of the angle.

[0034]

[Effect of device]

 As described above, according to the present invention, the second panel from the upper end of the first door is provided with the roller for restricting the inward displacement, and the guide roller of the uppermost panel is always engaged with the first storage rail. On the other hand, since the second door 2 is biased at a predetermined angle θ, the first door 1 is on the first storage rail facing the ceiling of the building, and the second door is below the first storage rail. It can be surely stored in the second storage rail disposed on the side, and the first or second door can be closed alternately with one guide rail without creating a gap in the opening. This makes it possible to construct a highly durable double overhead door with a simple structure because no movable parts such as switching means are required at the branching part.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention.

FIG. 2 is an enlarged view of a branch portion showing an embodiment of the present invention.

FIG. 3 is a view taken along the line AA of FIG.

FIG. 4 is a view showing a closed state of an inner door.

5 is a view taken along the line BB of FIG.

FIG. 6 is a diagram showing that the outer door is being stored.

FIG. 7 is a view of the same while the outer door is being stored.

FIG. 8 is a diagram showing a conventional example.

[Explanation of symbols]

 1 Outer Door 2 Inner Door 3 Guide Rails 4, 5 Storage Rails 6 Openings 8, 9 Drums 10, 20 Panels 11, 21 Guide Rollers 12 Rollers 30 Branches

Claims (3)

[Scope of utility model registration request] 1. An overhead door having two doors housed above an opening for alternately opening and closing one opening, wherein first and second doors are formed by connecting a plurality of panels to each other. A substantially upright guide rail provided in the opening, a first storage rail disposed above the guide rail to store the first door, and a first storage rail also above the guide rail. Second storage rail disposed below the storage rail for storing the second door, and the first storage rail provided on each panel of the first and second doors.
Alternatively, a guide roller guided by the second storage rail or the guide rail, a branch portion connecting the upper end of the guide rail and one ends of the first and second storage rails, and the first door are formed. A double overhead door characterized in that among the guide rollers provided on the panel, a guide roller located at an upper end when the first door is closed is arranged at a position which is always engaged with the first guide rail. 2. The double overhead door according to claim 1, further comprising means for pulling up the first door while pulling up the second door at a predetermined angle. 3. A displacement regulating means is provided at a predetermined position which can abut the guide rail and the branch portion laterally of the second panel from the upper end when the first door is closed. The double overhead door according to 1 or 2.