JPH0444795Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a folding door for opening and closing an opening such as a building gate or a garage entrance.

(Conventional technology) Conventionally, this type of folding door was developed in 1974.
Publication No. 34985 discloses a gate connected by hinges so that the gate pieces can be folded into a Z-shape, connecting pieces are attached to the lower side of the gate pieces, and the connecting pieces are arranged opposite to each other. A gate on which a caster is pivotally supported is disclosed at the end on the side where the door is opened.

Further, in Japanese Utility Model Publication No. 59-459, the upper frame and the lower frame have a pantograph-like connection structure, and each pivot pin of the upper frame is extended below the lower frame to form a traveling caster. A telescoping gate configured as a mounting member is disclosed.

(Problems to be Solved by the Invention) However, the former method described above has a problem in that it is inferior in self-sustaining stability because the casters always roll around the center of the gate's running track. In addition, in the latter case, when the gate is fully extended, the pivot pin contacts the lower frame and prevents the casters from aligning in a straight line with the center of the running track; However, even when stretched to the maximum, each panel body has a zigzag shape in plan view at a predetermined angle, and cannot form a single fence shape, resulting in a problem that the appearance is poor.

This invention was devised in view of the above-mentioned conventional problems, and its purpose is to achieve high self-sustaining stability,
Moreover, the present invention provides a folding door with a good appearance.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a door body in which adjacent ends of a large number of unit doors are pivoted to each other so that the unit doors can be folded in a zigzag shape, and the unit doors This is a folding door consisting of chain rods that are pivoted in a state where they intersect with each other, and whose adjacent ends are pivoted to each other, and when the door body extends in a substantially straight line, the chain levers still bend in a zigzag shape. It is also characterized by having casters placed at the ends of the chain rods.

(Function) When the folding door of the present invention is fully extended, the door main body can be extended in a substantially straight line, and the entire door main body becomes a single fence-like structure, which improves the appearance as well as a chain rod. does not extend in a straight line, so by arranging casters at the ends of the chain rods, the casters are always positioned protruding from the front and back of the door body, supporting the folding door in a stable state at all times. can.

(Example) The embodiments shown in the drawings will be described below.

1 to 5 show a first embodiment of the present invention.

The door body 1 has a large number of doors (6 in total in this example).
The unit doors 2A to 2F are sequentially and alternately foldable and their adjacent ends are pivoted by a pair of upper and lower hinges 4A to 4E.

In addition, since the door body 1 will be folded in a zigzag shape, the hinges 4A to 4E will be arranged alternately front and rear in the left and right direction.

The unit doors 2A to 2F have a pair of upper and lower horizontal frame members 21, 2.
It is constructed by disposing a plurality of vertical grids 22, 22, . . . in between. In addition, vertical frame members 23, 23 are fixed to the left side of the unit door 2A at the door stop side (left side) end and the right side of the unit door 2F at the hanging base side (right side) end, respectively. A handle member 5 and a bar-type lock 6 are attached to the vertical frame member 23 of the door 2A. , the vertical frame member 23 of the unit door 2F at the hanging side end of the door body 1 has a pair of upper and lower hinges 8,
8 to the hanging side gatepost 7B, and allows the door body 1 to rotate around the hanging side gatepost 7B via hinges 8, 8 when the door body 1 is folded and stored ( In this embodiment, it is possible to rotate in the direction of arrow A).

Below the unit doors 2A to 2F are the unit doors 2A to 2F.
Chain rods 3A to 3F are pivoted so as to intersect F. The chain rods 3A to 3F are formed of square pipes, and the unit door 2A is formed at the part where they bisect each other.
-2F are pivoted to the lower horizontal frame members 21, 21..., and the mutually adjacent ends of the chain rods 3A to 3F are pivoted to each other by hinges 9A to 9E.

These hinges 9A to 9E are also the hinges 4A to 4E mentioned above.
Similarly, they are arranged alternately front and rear in the left and right direction. The chain rods 3A and 3F at both left and right ends have approximately half the length of the chain rods 3B to 3E at the center.

In this embodiment, by configuring the distance C between the axes of the chain rods 3A to 3F to be larger than the distance B between the axes of the unit doors 2A to 2F, even when the door body 1 extends in a substantially straight line, the distance between the chain rods 3A to 3F Furthermore, the zigzag bending state can be maintained.

10 is a caster, and chain rods 3A to 3E
It is placed on the bottom surface of the end. Further, reference numeral 11 is a cushion which is fixed to the end face of the unit doors 2A to 2E and has a cushioning effect.

Next, the folding form will be described with reference to enlarged views shown in FIGS. 3 to 5.

FIG. 3 shows the folding door X in its most extended state. For example, when folding the folding door Unit door 2 while pulling in the direction of arrow D
Due to the initial operation of pressing the vicinity of the hinge 4A, which pivots A and the unit door 2B, in the direction of arrow E, the entire door body 1 is slightly bent, and the fulcrum of the hinges 4A to 4E, which pivot the unit doors 2A to 2F, is bent. However, unit door 2A~2
After passing over the straight line M connecting F and the pivoting portions of the chain rods 3A to 3F (see FIG. 4), folding proceeds only by operating the handle member 5 (see FIG. 5). still,
When extending the folding door X, the above operation may be performed in reverse.

6 to 8 show enlarged views of the second embodiment of the present invention, and the first embodiment has the unit doors 2A to 2F bent in the same direction and the chain rods 3A to 3F bent in the same direction. In the second embodiment, the bending directions of the unit doors 2A to 2F and the bending directions of the chain rods 3A to 3F are opposite to each other as much as possible. The other configurations and folding configurations are the same as those of the first embodiment, so their explanations will be omitted.

Unit door 2 in the first embodiment and the second embodiment
The attachment of the hinges 4A to 4E that pivotally connect the unit doors 2A to 2F to each other results in restricting the maximum opening angle of the unit doors 2A to 2F to 180° (that is, they do not bend in the opposite direction).

FIGS. 9 and 10 are enlarged views of the third embodiment of the present invention, and when the unit doors 2A to 2F are mutually pivoted, both ends of the hinge plates 12A to 12E are connected to the unit doors 2A to 2F, respectively. It is attached to the shaft. In this embodiment, it is possible to automatically start folding the door body 1 only by pulling the handle member 5. In the third embodiment, the stoppers 13, 13 are fixed to restrict bending of the unit doors 2A to 2F in the opposite direction.

(Effects of the invention) When the folding door of the invention is fully extended, the door body can be extended in a substantially straight line, and the entire door body becomes a single fence, which improves the appearance. When the door main body is extended in a substantially straight line, the chain lever can still maintain a zigzag bent state and will not extend in a straight line. Therefore, by disposing a caster at the end of the chain lever, the caster are always protruding from the front and back of the door body, and can always support the folding door in a stable state.

In addition, as in the first and second embodiments, the maximum opening angle between the unit doors is limited to 180°, and the fulcrum of the hinge that pivots the unit doors to each other is the pivot point of the unit door and the chain rod. By creating a structure that bends by passing through the straight line connecting the door, it is not only possible to firmly maintain the extended state of the door body, but also because it does not start folding unless the initial operation is performed, it is able to withstand external forces such as wind. This makes it possible to eliminate unexpected folding due to

[Brief explanation of the drawing]

Figure 1 is a plan view of the folding door according to the first embodiment of the present invention, Figure 2 is a front view of Figure 1, and Figures 3 to 5 are views of the folding door of Figure 1. FIGS. 6 to 8 are enlarged explanatory views showing the folding form of the folding door according to the second embodiment of the present invention. FIGS. 9 and 10 are enlarged explanatory views showing the folding form of the folding door according to the second embodiment of the present invention.
It is an enlarged explanatory view showing the folding form of the folding type door concerning an example. 1...Door body, 2A~2F...Unit door, 3A~
3F... Chain lever, 10... Caster.

Claims (1)

[Claims for Utility Model Registration] 1. A door body 1 that can be folded in a zigzag shape by pivoting the adjacent ends of a large number of unit doors 2A to 2F, and a shaft that intersects with the unit doors 2A to 2F. Chain rod 3A with attached and adjacent ends mutually pivoted
It is a folding door consisting of ~3F, and when the door body 1 extends in a substantially straight line, the chain rods 3A~3F
are bent in a zigzag shape, and casters 10, 1 are placed at the ends of the chain rods 3A to 3E as appropriate.
A folding door characterized by the arrangement of 0... 2 Maximum opening angle between unit doors 2A to 2F is 180°
A folding door according to claim 1 of the utility model registration claim, characterized in that the door is pivoted with the following restrictions.