JPH0444797Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a flip-up door that is opened and closed by vertically pivoting the door body.

(Prior Art) Conventionally, doors such as gates have been commonly used, such as double-door doors, sliding doors that slide horizontally, and telescoping doors that can be opened and closed in the horizontal direction.

However, double-folding doors create an unusable space (dead space) for opening and closing the door.
In addition, sliding doors require a retracting space to retract the door, and retractable doors leave a considerable folded width when open, reducing the usable frontage. The problem is that the available space is limited.

On the other hand, among known doors, there are known spring-type doors as shown in FIGS. 7 and 8 (Japanese Patent Publication No. 57-53507). The flip-up door of this known example has a rectangular plate-shaped door body 101, and a rocking arm 103 which is pivotally attached (shaft 104) to a post 102 at a predetermined height position.
The door body 101 is fixed to the tip of the swing arm 103 so that the door body 101 can be driven to open and close in the vertical direction together with the rocking arm 103.

However, in the flip-up door of this known example, the door body 101 is opened and closed by pivoting in the vertical direction, and therefore, in the open state, the door body 101 is supported in an upwardly lifted position as shown by the chain line 101'. However, the usable space on the ground increases, but the door body 1
01 is maintained in a horizontal position at the upper position, and in this state, the large area portion (height H x width W) of the door body 101 covers the upper part of the entrance/exit. If you are below the door, you will feel a sense of closure or pressure, and in strong winds, the area of the door body 101 is large, so there is a problem that the door body 101 will be blown by the wind and shake or feel unstable. It was hot.

Furthermore, in the known flip-up type doors shown in FIGS. 7 and 8, the fulcrum (shaft 104) supporting the rocking arm 103 is located at a fairly high position on the column 102, and the door body 101 is When opening and closing, the door body 101
(In particular, its lower end 101a) protrudes forward by a considerable width T and turns, so that the door body 101 is kept inward by the protruding width T from the outer surface of the entrance/exit component Y such as a gatepost or block wall. In this case, there is a problem that the effective space on the premises becomes smaller, and a gap S may be created between the inner corner of the entrance component Y and the front surface of the door body 101. In that case, the gap S must be filled with fillers X and X.

(Purpose of the invention) In view of the above-mentioned conventional problems, the present invention makes it possible to reduce the width of the door body of a flip-up type door when the door is opened (when it flips up).
The purpose of this is to reduce the feeling of being closed, feeling of pressure, and feeling of instability from the door body.

(Means for Achieving the Purpose) The flip-up door of the present invention has a plurality of horizontal bars at the tip of a rocking arm which is pivotally attached to the pillar so that it can swing vertically at an appropriate height position. A horizontally extending extendable door body, which is made up of a telescopic link mechanism and connected so as to be able to approach and move away from each other, is supported in an extendable and retractable state and also in a manner that it can swing vertically together with the rocking arm. It is characterized by this.

(Function) The flip-up door of the present invention uses a sideways type telescoping door body, so when the swinging arm is in the downward movement state, the telescoping door body can be maintained in an extended state and used as a normal door. In addition, it is possible to maintain the telescopic door body in a contracted state when the swinging arm is in an upward motion state.

(Embodiment) A preferred embodiment of the present invention will be described with reference to Figs. 1 to 6. The flip-up door of the embodiment shown in Figs. 1 to 5 is used for gates, etc. Then, a horizontally extending extendable door body 1, which is formed by connecting a plurality of horizontal bars 11, 11, . It is supported by rocking arms 3, 3 which are pivotally mounted so as to be able to swing vertically at any position.

The horizontal beams 11 of the extendable door body 1 have a length slightly shorter than the interval between the entrances and exits where the doors are installed. In addition, in this embodiment, there are a total of 5 horizontal bars 11 in one door body.
This book is used.

The telescopic link mechanism 12 of the telescopic door body 1 includes inclined connecting members 13, 13, . . . that are inclined in opposite directions.
are used, and their inclined connecting members 13,
13... are assembled to each of the horizontal bars 11, 11... in a pantograph shape.

The pair of left and right columns 2, 2 are erected at a position spaced from the door body installation position by the length of the rocking arm 3 on the inside of the premises. Incidentally, the distance between the two supports 2, 2 is approximately the same as the horizontal length of the telescoping door body 1.

Proximal ends 3a, 3a of rocking arms 3, 3 are pivotally mounted on shafts 4, 4 at appropriate height positions (height A from the ground shown in FIG. 3) of each support 2, 2, respectively. Each rocking arm 3, 3 is vertically swingable.
The horizontal length B (FIG. 3) of this rocking arm 3 is determined by the length B (FIG. 3) when the telescoping door body 1 is pivoted upward as shown by the chain line 1' (FIG. 3), as described later. The height C of 1' is designed to be slightly larger than the height of a person. That is, the pivot height A of the rocking arm 3
and the horizontal length B of the rocking arm 3 (height denoted by C) is made to be slightly larger than the height of a person.

The extendable door body 1 has tips 3b, 3b of rocking arms 3, 3.
In addition, when the rocking arms 3, 3 are in the downward movement position (FIG. 1), the horizontal bars 11, 11, . In addition, in this embodiment, the tips 3b, 3b of each rocking arm 3, 3 are connected to the five horizontal bars 11, 3b of the telescoping door body 1.
One horizontal bar 11 located in the center of 11...
is fixed at each end of the By doing this, when the extendable door body 1 is in the closed state, the horizontal bar 1 of the rocking arm fixed part
The weights of the two horizontal bars 11, 11 located on both sides of the door body 1 cancel each other out, so that when the extendable door body 1 is extended or contracted, it can be extended or contracted with a small operating force. become. In the illustrated embodiment, a total of five horizontal bars 11 are used, but in other embodiments, an odd number such as three or seven horizontal bars 11 are used, and among the odd number of horizontal bars 11, One horizontal bar 11 located at the center of the swing arm may be fixed to the swinging arm tips 3b, 3b.

A support device 5 is provided between the support column 2 and the rocking arm 3, which can support the extendable door body 1 and the rocking arms 3, 3 at arbitrary height positions. This support device 5
In this embodiment, a telescopic cylinder 6 which is always biased in the direction of extension is employed. Note that one support device 5 is provided between each of the left and right rocking arms 3, 3 and the columns 2, 2. This telescopic cylinder 6 is of a type in which a spring is housed in the cylinder tube 6a and the rod 6b is always urged in the direction of extension. It is designed so that the total weight of each rocking arm 3, 3 is balanced. In this way, the extendable door body 1 can be opened and closed (swiveled in the vertical direction) with a small operating force.

The flip-up door of the illustrated embodiment is used in the following manner. That is, when closing the doorway, as shown in FIG. 1, the swing arms 3, 3 are positioned in the downward movement position, and the extendable door body 1 is extended to maintain the door in the closed state. When opening this flip-up door, first, the telescopic door body 1 is fully contracted as shown in FIG. At this time, since the rocking arm tips 3b, 3b are fixed to the horizontal bar 11 located in the center, the two horizontal bars 11, 11 located above and below
Their weights cancel each other out, allowing the telescopic door body 1 to be easily contracted (as well as extended). Then, while keeping the telescopic door body 1 contracted, the rocking arm 3,
3 is manually pushed upward by an angle of 90°, the telescoping door body 1 and the swinging arms 3, 3 are maintained in an upwardly lifted position as shown by the chain lines.
Note that when the telescoping door body 1 is turned vertically in a contracted state (the state shown by the solid line in FIG. 3), the height of the lower end of the telescoping door body 1 is the same as the height of the center of rotation (shaft 4). , and the width D that protrudes forward when the telescoping door body pivots can be made relatively small (note that when the telescoping door body 1 is turned in the vertical direction while being fully extended, the protrusion width E of the telescoping door body 1 increases).
In this way, the telescopic door body 1 when the telescopic door body pivots.
When the front protrusion width D becomes smaller, it becomes possible to install the extendable door body 1 closer to the entrance structure Y (block wall, gatepost, etc.) in the closed state, and as shown in FIG. A large gap is no longer formed between the inner edge Ya and the side edge 1a of the telescoping door body 1 (therefore, there is no need to fill the gap). Also, the telescopic door body 1 is
When the telescopic door body 1 is supported at an upper position in the contracted position as shown by the chain line 1' in the figures and FIG. In addition, even in strong winds, the area exposed to the wind is small, so the extendable door body 1 is less likely to rattle and the sense of instability is reduced.

In the embodiment shown in FIGS. 1 to 5, each of the horizontal beams 11, 11... is connected by a set of telescopic link mechanisms 12 so that they can approach and move away from each other. In the case where only the telescopic link mechanism 12 is used, one of the intersection points between each inclined connecting member 13, 13... and each horizontal beam 11, 11... is non-slidably pivoted (fixed pivoted in Fig. 5). part 14) and the other intersection part is pivoted so as to be slidable in the longitudinal direction of the horizontal beam (slide pivot attachment part 15 in FIG. Since the mounting portion 15 is displaced in the left-right direction, the center of gravity of the extendable door body 1 changes in the left-right direction.

FIG. 6 shows a modified embodiment of the embodiment of FIGS. 1 to 5. In FIG. In the embodiment shown in FIG. 6, two bilaterally symmetrical telescoping link mechanisms 12, 12 are employed in the telescoping door body 1. In this way, when the telescoping door body 1 is extended or contracted, even if the respective slide shaft attachment parts 15, 15... in the telescoping link mechanisms 12, 12 slide in the left-right direction, the weight displacement in the left-right direction at that time is will cancel each other out, and the center of gravity of the extendable door body 1 will not be displaced in the left-right direction.

This flip-up door is equipped with various locking devices and a second
As shown in the figure, a lock device for regulating the extension of the telescopic door body 1 when the telescopic door body 1 is in the contracted state, a lock device for locking the swinging arms 3, 3 in the upward movement position, A handle member for expanding and contracting, a handle member for vertically swinging the rocking arm 3, and the like are provided as necessary.

(Effects of the invention) The flip-up door of the invention uses a horizontally oriented telescoping door body 1 as the door body for opening and closing the entrance.
Since the telescoping door body 1 is configured to be able to maintain the contracted position in the upward movement position of the swinging arm 3, the door body can be contracted to reduce its width when the door is opened (when the swinging arm 3 is operated upward). By making the width (area) of the door body smaller when the door is opened, the entrance and exit area can be made smaller than the conventional rectangular door body (Figures 7 and 8). This has the effect of reducing the feeling of closure and pressure from above, and the smaller area of the door body reduces the effects of wind (wind-induced rattling and instability) during strong winds.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the flip-up type door according to the embodiment of the present invention, Fig. 2 is a state change diagram of the flip-up type door in Fig. 1, Fig. 3 is a side view of Fig. 1, and Fig. 4 is the 1
FIG. 5 is a front view of the telescoping door body of the flip-up door of FIG. 1, FIG. 6 is a front view of the telescoping door body of the flip-up door according to another embodiment of the present invention, and FIG. The figure is a side view of a conventional flip-up door, and FIG. 8 is a plan view of FIG. 7. 1... telescopic door body, 2... pillar, 3... rocking arm, 3
b... Tip, 11... Horizontal bar, 12... Telescopic link mechanism.

Claims (1)

[Claims for Utility Model Registration] 1. A plurality of horizontal bars 11, 11, . A horizontally extending telescoping door body 1 is connected by a telescoping link mechanism 12 so as to be able to approach and move away from each other.
A flip-up type door characterized in that it is supported in an extendable and retractable state and also in a manner that it can swing vertically together with the rocking arm 3. 2 The horizontal bars 11 of the extendable door body 1 are an odd number of three or more, and the tip 3b of the rocking arm 3 is attached to one horizontal bar 11 located in the center of the horizontal bars 11, 11... The flip-up door according to claim 1 of the utility model registration claim, characterized in that the door is fixed.