JP3232528B2 - Overdoor door - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door and a door for an overdoor to be attached to an opening of a building such as a warehouse, a garage, a factory, and the like.
Physically, an over that connects multiple door panels with hinges
About the door.

[0002]

2. Description of the Related Art There is known an overdoor in which a door in which a plurality of door panels are connected by a hinge is moved up and down along a guide rail to open and close the door. In some cases, the forklift truck travels through the opening when the door of the above-mentioned overdoor is in an intermediate state between the open state and the closed state. At this time, the fork pawls of the forklift truck or the luggage placed on the fork pawls may accidentally collide with the door panel, and the collision force may damage the door panel.

In order to prevent the damage of the door panel due to the above-mentioned impact force, it is conceivable to use a door panel having flexibility and restoring property. According to this structure, when the fork claws of the forklift truck or the luggage placed on the fork claws collide with the door panel, the door panel bends to absorb and reduce the impact force, and the luggage placed on the fork claws or the fork claws. When the is separated from the door panel, the door panel is restored to its original shape. Therefore, it is possible to prevent the door panel from being damaged by the impact force.

[0004]

It is disadvantageous in terms of the rigidity and cost of the doors to make all of the plurality of door panels forming the door of the overdoor a flexible and resilient door panel, and the fork of a forklift truck. It is the lower door panel where claws and luggage collide. For this reason, it is preferable that the lower door panel of the plurality of door panels be a panel having flexibility and resilience, and that the upper door panel be a rigid door panel. On the other hand, upper and lower adjacent door panels forming the door of the overdoor are connected at both left and right portions by metal end hinges and at right and left intermediate portions by metal intermediate hinges.

As described above, the door panel having flexibility and resilience connected to the large rigid door panel has the left and right intermediate portions connected to the rigid door panel by the intermediate hinges. When trying to bend and deform the door panel, the bending deformation of the left and right middle portions of the door panel is hindered by the middle hinge and the rigid door panel. For this reason, the door panel having flexibility and restoring property is not smoothly curved and deformed in response to the impact force, and the door panel is damaged.

Accordingly, an object of the present invention is to provide an overdoor door which can solve the above-mentioned problems.
I do.

[0007]

According to the present invention, a plurality of door pads are provided.
Door panels with adjacent door panels
And connected by an intermediate hinge 6 at the left and right intermediate portions.
Door of the lower door panel,
Has flexibility and resilience, and the left and right sides
Rigid size, each remaining door panel is rigid large, the lowermost
Intermediate link between adjacent door panels and adjacent door panels
The hinge section 6 has an intermediate piece 30 that is easily bent and stretched.
And a pair of rigidly provided
And the remaining intermediate hinge 6 and each
The end hinge 5 is made of metal.
Door to door.

[0008]

[0009]

According to the present invention, the door panel at the bottom of the door is provided.
, Forklift truck fork claws or forks
When a load placed on the nail accidentally collides,
An impact force acts on the lower door panel, and the middle hinge 6
The intermediate piece 30 expands and deforms according to the impact force. Therefore,
The lower door panel is obstructed by an adjacent rigid door panel
Bends smoothly according to the impact force.
Therefore, the lowermost door panel is not damaged. Ma
Also, the bottom door panel and the adjacent door panel
The intermediate piece 30 of the intermediate hinges 6 which forms an are smoothly bent and deformed in response to an external force, the bottom of Doapane <br/> Le and stiffness with flexibility and resiliency when the door is raised and lowered along the guide rails The large door panel smoothly bends to almost 90 degrees.

[0010]

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a door 1 in which a plurality of door panels are connected by hinges is connected to left and right guide rails 2.
The upper door rises and lowers to form a closed state and an open state, thereby forming an overdoor. The lowermost door panel 3 forming the door 1 has a horizontally long plate shape, and the other door panels 4 have a horizontally long plate shape. The vertically adjacent door panel includes a pair of left and right end hinges 5 and a middle hinge 6 at the left and right center.
It is connected with. Said end hinge 5 comprises a roller 7;
The roller 7 rolls along the guide rail 2. A bottom roller 8 is attached to the lowermost door panel 3, and a head roller 9 is attached to the uppermost door panel 4.
The bottom roller 8 and the head roller 9 are used for the guide rail 2.
Roll along.

As shown in FIGS. 2 and 3, the lowermost door panel 3 has an upper side frame member 10 and a lower side frame member 11, and one side surface member 12 and the other side surface member 13 are fixed to each other. It has a horizontally long plate-shaped panel main body having a cavity 14 open at both left and right ends. A metal net 15 and a heat insulating material 16 are provided in the cavity 14. Left and right vertical frame members 17 are attached between both ends of the upper horizontal frame member 10 and the lower horizontal frame member 11 in the longitudinal direction.
2. Close the openings at the left and right ends of the hollow portion 14 by sandwiching the other side surface material 13, and form a panel frame with the left and right vertical frame members 17, the upper and lower horizontal frame members 10, and the lower horizontal frame member 11. are doing. Thus, the lowermost door panel 3 has a horizontally long plate shape having a predetermined thickness, height and length.

The upper horizontal frame member 10 is made of a resin having a rectangular cross section and having a hollow shape, for example, a hard vinyl chloride extruded product.
A packing material 18 is provided on Oa. The portion of the upper horizontal frame member 10 closer to the lower surface 10d of the side surface 10b and the other side surface 10c is thinner than the portion closer to the upper surface 10a to form a step, and the one side surface material 12 and the other side surface material 13 The upper edge part is stuck and fixed.

The lower horizontal frame member 11 is made of a resin having a rectangular cross-section and having a hollow shape, for example, a hard vinyl chloride extruded product.
An airtight / watertight material 20 called a weather strip made of EPDM is attached to 1a. One side surface 11b of the lower horizontal frame member 11 and a portion closer to the upper surface 11d of the other side surface 11c are the lower surface 11
A step is formed thinner than the part closer to a, and the lower edges of the one-side surface material 12 and the other-side surface material 13 are adhered and fixed to the step. That is, the upper horizontal frame member 10 and the lower horizontal frame member 11 have the same cross-sectional shape and are used upside down.

The one surface material 12 and the other surface material 13 are resin sheets, for example, a vinyl chloride sheet having a one-ply structure of a polyester cloth canvas. The metal net 15 has a shape that expands and contracts with elasticity, for example, a mesh made of galvanized steel sheet, and is provided in the middle of the lowermost door panel 3 in the thickness direction. This metal mesh 15 is used to prevent the door panel 3 from being cut in a short time by a cutter such as a cutter.
This makes the door panel preferable for security.

The heat insulating material 16 is made of soft urethane (density 4).
0 kg / m ³ , hardness 30 kg / 314 cm ² ).
The heat insulator 16 is provided between the metal net 15 and the one side surface material 12 and between the metal net 15 and the other surface material 13.

As described above, the lowermost door panel 3 is a door panel having flexibility and resilience and excellent heat insulation.

The vertical frame member 17 is made of a metal having a U-shaped cross section. The vertical frame member 17 sandwiches both side surfaces of the upper horizontal frame member 10, the lower horizontal frame member 11, the one side surface member 12, and the other side surface member 13. It is fixed and closes the left and right openings of the cavity 14.

The end hinge 5 is made of metal, and one side thereof is fixed to the vertical frame member 17 and the other side is fixed to the other door panel 4. As described above, the right and left side portions of the lowermost door panel 3 having flexibility and restoring property are increased in rigidity by the vertical frame member 17, and the end hinge 5 is fixed to the rigid portion. 5, the left and right sides of the lowermost door panel 3 and the left and right sides of the other door panel 4 can be firmly connected.

The other door panel 4 is a generally used door panel having a large rigidity and excellent heat insulation.

As shown in FIG. 4, an intermediate hinge 6 for connecting the lowermost door panel 3 to another door panel 4 has a substantially U-shaped intermediate piece 30 which is easily bent and expanded and contracted. A pair of large rigid mounting pieces 3 provided integrally with each other
1 and 31, and a mounting hole 32 is formed in each mounting piece 31.

One mounting piece 31 is fixed to one side surface of the upper horizontal frame member 10 with a fixing tool 33 such as a screw, and the other mounting piece 31 is fixed to another rigid door panel 4 with a fixing tool 33 such as a screw. Is done.

The intermediate hinge 6 is formed by cutting an integrally extruded product of a hard resin and a soft resin into a predetermined length. Specifically, a thin intermediate piece 30 and a pair of thick mounting pieces 34 integrally formed with the intermediate piece 30 are formed of soft vinyl chloride, and the upper and lower surfaces of the pair of mounting pieces 34 are formed. The end face is integrally coated with a hard vinyl chloride surface layer 35.

As described above, the intermediate piece 30 which is easily bent and expanded and contracted and the intermediate hinge 7 provided with a pair of rigid mounting pieces 31 provided integrally with the intermediate piece 30 are provided. It can be easily manufactured by resin extrusion molding.

The other intermediate hinges 6 are made of metal.

Since the intermediate hinge 6 has the shape described above,
As shown in FIG. 5, when the fork claw 40 of the forklift truck collides with the left and right middle part of the lowermost door panel 3, the intermediate piece 30 of the intermediate part hinge 6 expands and deforms according to the impact force. It bends and deforms according to the impact force. Further, since the mounting piece 31 is large in rigidity, it can be firmly fixed to the door panel by the fixing tool 33.

When the door panel is moved up and down along the guide rail 2, the two vertically connected door panels are approximately 90 degrees. Since the middle piece 30 of the middle hinge 6 is substantially U-shaped and is easily bent and deformed, the lowermost door panel 3 and the other door panel 4 are smooth because the middle piece 30 of the middle hinge 7 is bent at almost 90 degrees. Is almost 90 degrees.

[0028]

According to the first aspect of the present invention, the door
At the bottom door panel, forklift truck
Luggage placed on the hook or fork claws accidentally collided
When a collision occurs, an impact force acts on the bottom door panel,
The intermediate piece 30 of the intermediate hinge 6 expands and deforms according to the impact force.
I do. Therefore, the lowermost door panel is adjacent
Smooth according to the impact force without being disturbed by the door panel
The lowermost door panel
Never. Also, the door adjacent to the bottom door panel
Since the intermediate piece 30 of the intermediate hinge 6 connecting the apanels bends and deforms smoothly in response to an external force, the door has flexibility and resilience when the door moves up and down along the guide rail.
The lowermost door panel and the rigid door panel smoothly bend to almost 90 degrees.

[0029]

[Brief description of the drawings]

FIG. 1 is a schematic perspective view of an overdoor.

FIG. 2 is a sectional view of a lowermost door panel.

FIG. 3 is a perspective view in which a part of a lowermost door panel is cut away.

FIG. 4 is a perspective view of an intermediate hinge.

FIG. 5 is a perspective view showing a curved deformation state of a lowermost door panel.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Door, 2 ... Guide rail, 3 ... Lowermost door panel, 4 ... Other door panel, 5 ... End hinge, 6 ... Intermediate hinge, 30 ... Intermediate piece, 31 ... Mounting piece, 33 ... Fixing tool,
34: mounting piece, 35: surface layer.

Claims (1)

(57) [Claims] 1. An adjacent door comprising a plurality of door panels.
The panels are located between the left and right end hinges 5 and the middle between the left and right middle parts.
Doors connected by hinges 6
Thus, the lowermost door panel has flexibility and resilience.
In both cases, the left and right sides are rigid, and the remaining door panels are
High rigidity, connecting the bottom door panel and the adjacent door panel
The intermediate hinge 6 to be tied is apt to bend and expand and contract.
Intermediate piece 30 and high rigidity provided integrally with intermediate piece 30
And the remaining intermediate hinge 6 and each end hinge 5 are made of metal.
A door for an overdoor, characterized in that: